Swcasovi by zemanic zemanic

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3D Modeliranje

3D MODELIRANjE 1.1 SolidWorks 3D CAD paket – opis funkcionalnosti 

SolidWorks 3D CAD paket se koristi u procesima razvoja proizvoda - virtuelnog prototipa, projektovanju tehnologije, simulacijama, proračunima...



SolidWorks omogućava projektovanje kompletnog proizvoda-sklopa-podsklopa, kreiranje tehničke dokumentacije sa smanjenim rizikom pravljenja grešaka,



SolidWorks omogućava čitav niz proračuna i simulacija, što skraćuje period izlaska proizvoda na tržište i smanjenu potrebu za izradom prototipova,



Upravljanje kompletnom tehničkom dokumentacijom, praćenje izmena dokumentacije.

1.2 Razumevanje modeliranja zasnovanog na funkcijama Postoji određena teminologija koja se mora savladati pre nego što se počne sa modeliranjem. Upotrebljava se termin modeliranje, ne crtanje, ne dizajniranje...SolidWorks (SW) je program za kreiranje virtuelnog prototipa. SW pomaže da se vizualizuju geometrijski podaci proizvoda na realisitičan način. Proces modeliranja sličniji je kreiranju fizičkog modela u radionici nego crtanju na papiru. Modeliranje zasnovano na funkcijama znači kreirati model postepenim identifikovanjem funkcionalnih oblika i premenom procesa za kreiranje oblika. Primer 1 Modelirati kutiju, cilindar i loptu. Nacrtati u ravni kvadrat ili pravougaonik i profil translirati duz prave linije koja definiše treću stranicu kvadra. Naziv funkcije Extrude-izvlačenje, slika 1a. Za modeliranje cilindra postoje dva načina. Prvi je da se u ravni nacrta pravougaonik koji se zarotira oko jedne stranice koja bi predstavljala osu cilindra i to proimenom funkcije Revolve, slika1b. Drugi način modeliranja cilindra: u jednoj ravni nartati kružnicu i zatim je transilati duž prave linije koja bi predstavljala izvodnicu cilindra koristeći funkciju extrude, slika 1c. Lopta se modelira tako što se u ravni nacrta polukrug i zarotira oko stranice koja predstavlja jednu od osa lopte, slika 1c. U slucaju modeliranja lopte primenjuje se funkcija revolve. a)

Osa

Osa Slika 1. Modeliranje kutije-kvadra, cilindra i lopte.

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3D Modeliranje

U većini slučajeva za kreiranje referentne geometrije bilo kog mašinskog dela ili bilo kog tela upotrebljavaju se funkcije kao što su:  Extrude,  Revolve,  Rib, Funkcije koje zahtevaju skicu. Skica-sketch.  Hole Wizard,  Wrap za koje je neophodno da imate predhodno nacrtanu skicu. Pored ovih funkcija postoje još neke funkcije koje kreiraju referentnu geometriju o kojima će biti reči u okviru ovog kursa. Poneke od funkcija za modeliranje referentne geometrije moraju imati dve skice kao što je sučaj sa funkcijom rib.

1.3 Definisanje modela ...podsetnik...važniji termini... Projekcija na ravan koja se, u opštem slučaju, ne poklapa ni sa jednom od glavnih površina objekta koji se modelira naziva se projekcijom-slikom. Ukoliko su projektujući zraci paralelni jedan sa drugim onda je u pitanju paralelna projekcija a ukoliko se sustiču u jednoj tački onda je u pitanju perspektivna projekcija, slika 2. a)

Slika 2. Pojekcije-slike: a) paralelna; b) perspektivna

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3D Modeliranje

Prikaz geometrijskih entiteta klasičnih CAD sistema kao i načini konstruisanja tačke , slika 3.

Slika 3. Geometrijski entiteti kličnih CAD sistema

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3D Modeliranje

Na slici 4 prikazani su načini konstruisanja linije kao i načini konstruisanja kružnog luka kod klasičnih CAD sistema.

Slika 4. Načini kontruisanja prave i kružnog luka

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3D Modeliranje

Razvijene metode koje se uptrebljavaju za 3d modeliranje uključuju predstavljanje geometrije nekog tela kao skup linija, krivih, površina u prostoru. Koordinatni sistem koji se koristi za opis pomenutih elemenata je Dekartov pravougli koordinatni sistem desne orijentacije, slika 5.

Slika 5. Dekartov koordintani sistem desne orjentacije Primeri površina koje su definisane pomoću krivih prikazani su na slici 6.

Slika 6. Primeri površina

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3D Modeliranje

Primer tela – žičanog modela (wireframe model), slika 7.

Slika 7. Prikaz tela – žičani model Primeri funkcija loft i sweep prikazani su na slici 8.

Slika 8. Prikaz tela – Funkcije loft i sweep

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3D Modeliranje

Constructive Solid Geometry (CSG ili C-rep) – kao način predstavljanja 3d modela, poznata je i kao Bulova metoda. CSG metoda vrši prezentaciju 3d modela koristeći prosta tela koja se zovu primitivi (cilindi, sfere, kupe...), slika 9.

Slika 9. CSG prezentacija 3d modela

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3D Modeliranje

Svako telo sastoji se od geometrijskih primitiva. Svako telo može se modelirati koristeći geometrijske primitive i operacije koje se nad njima primenjuju – Bulove operacije. Na slici 10. prikazano je telo i način na koji se jedan 3d model može modelirati koristeći geometrijske primitive i bulove operacije. Bulove operacije su: unija, presek i razlika.

Slika 10. CSG prezentacija 3d modela. Primitivi. Bulove operacije.

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3D Modeliranje

1.4 Pregled interfejsa SolidWorksa Na slici 11 prikazani su elementi SolidWorks interfejsa

Slika 11. Elementi SolidWorks interfejsa

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3D Modeliranje

Command Manager i linija sa alatkama grupiše srodne komande i opcije za podešavanje. Padajući meni prikazani su na slici 12.

Ovaj meni sadrži funkcije za modeliranje bilo kog tela-dela, površine, zavarene konstrukcije... Ovaj meni vazan je za tipove pogleda, način prezentacije modela, osvetljenje....

Ovaj meni sadrži funkcije za analizu modela, sklopa, podsklopa. Omogućava određivanje zapremine i mase modela....

Slika 12. Popularni padajući meni

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3D Modeliranje

Rollback bar

Feature - osobina Drvo – tree. Drvo ‘pamti’ sve funkcije koje se koriste da bi se izmodeliralo telo. Slika 13. Feature Manager za 3d model miša

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3D Modeliranje

1.5 Generalizovan algoritam za modeliranje tela u SolidWorks paketu i drugim komercijalnim paketima za 3d modeliranje

Analiza osobina tela koje se modelira. Konfiguracija tela (složeno telo, prosto telo, telo sa skulptorksim površinama...)

Odabir referentne ravni (xOy, xOz, yOz) u kojoj će se nacrtati skica-sketch. U okvirru skice mora postojati zatvorena kontura.

Nakon završenog rada u okviru skice neophodno je izaći iz nje – exit sketch (gornji desni ugao ekrana) i primeniti optimalnu funkciju za generisanje tela (funkciju koja zahteva definisanu skicu a to su extrude, rib, revolve...). Dobijeno telo tretira se kao ‘obradak’.

U većini slučajeva telo koje se modelira sadrži različite primitive neophodno je odabrati određenu ravan na dobijenom telu i koristiti je kao skicu.

Nakon završenog rada u okviru skice neophodno je izaći iz nje – exit sketch (gornji desni ugao ekrana) i primeniti optimalnu funkciju za generisanje primitiva (funkciju koja zahteva definisanu skicu a to su extrude cut, extrude.....ili primeniti funciju combine....

Modelirano telo. Završetak modeliranja

Slika 13. Algoritam za mogući način modeliranja tela u SolidWorks paketu

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3D Modeliranje

1.6 Primer primene osnovnih funkcija za modeliranje. Funkcija koje zahtevaju predhodno definisanu skicu. Upotreba tastera miša i tastarure u cilju manipulacije modeliranim telom. P1. Modelirati kvadar proizvoljnih dimenzija.

Slika 14. Osnovni meni pri startovanju SolidWorksa

Modeliranje telakomponente

Modeliranje sklopovamonraža 2d crtezi. Generisanje radioničke dokumentacije modeliranog dela, sklopa ili podsklopa

Slika 15. Izbor pri generisanju novog solidworks dokumenta

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3D Modeliranje

Postaviti strelicu miša na FrontPlane,desni klik, selektovati show. Pnoviti na sve tri ravni. Rezultat: sve ravni su vidljive. Selektovati desnim klikom TopPlane, selektovati sketch, slika 16. Rezultat je ulazak u sketch-ravan i rad sa skicom, slika 17.

sketch Slika 16. Ravni koje čine ose Dekartovog pravouglog koordinatnog sistema. Ulazak u rad sa skicom – sketch. Definisanje Sketch plane – ravan skice

Drvo- tree

Izlaz iz skice – exit sketch Slika 17. Okruženje pri radu sa skicom

Sekekovati Rectangle, levim klikom miša. Nacrtati pravougaonik, slika 18.

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3D Modeliranje

Tipovi pravougaonika

Osobine – features koje su vezane za funkciju crtanja pravougaonika Slika 18. Crtanje pravougaonika (zatvorene konture-closed contouor) okviru sketch plane Izaći iz skice i primeniti funkciju extrude boss-base, slika 19. Nakon željene dubine izvlačenja – extrudiranja, koja u konkretnom slučaju iznosi 37 mm kliknuti na zelenu kukicu u feature meniju funkcije extrude. Modeliran je kvadar, slika 20.

Slika 19. Funkcija extrude

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3D Modeliranje

Slika 20. Modeliran kvadar U feature manager-u, konkretno u okviru drveta-tree, može se videti istorija modeliranja tj. funkcije koje su se koristile u cilju modeliranja željenog tela. Načini rotacija tela koje je modelirano: 1. konstantak klik na centralni taster miša u kombinaciji sa proizvoljnim pomeranjem miša omogućava rotaciju tela oko koordinatnog početka, odnosno oko osa koordinatnog sistema, 2. skrolovanje centralnog tastera miša omoćava zoom in i zoom out , 3. konstantan klik na taster ctrl i konstantan klik na centralni (središnji) taster miša omogućava pomeranje-translaciju modeliranog tela bez promene orijentacije (sa trenutnom orijentacijom u prostoru). Normal to – Crtl+8 - Pogled normalan na selektovanu ravan Isometric view – Ctrl+7- prikaz izometrijski

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3D Modeliranje

Primer funkcije Sweept boss- base Neophodno je modelirati deo koji je prikazan na slici 21.

Slika 21. Primer tela za funkciju swept

1.klik New. 2.klik

3.Klick Circle Dimension, 4.Exit 5.Klik

Klik Part, Top

OK. Plane a

zatim

Sketch.

a zatim nacrtati krug sa centrom u koordinatnom početku. Klik Smart a zatim dimenzionisati krug sa prečnikom 10mm.

Front

Plane

zatim

Sketch. Sketch.

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6.Klik

7.Zoom out

8.Exit 9.Klik View

3D Modeliranje

View

sketch, klik

Spline

Orientation>Normal

(crtl+8)

I nacrtati krivu pribliĹžnu, kao na skici ispod.

Sketch. Orientation>Isometric(crtl+7)

10. Klik Features>Swept Boss/Base. Za profil koji se sweept-uje selektovati Sketch1 (krug) a za vodilju selektovati Sketch2 (kriva).

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zatim

kliknuti

3D Modeliranje

zelenu

kukicu

Kraj!

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3D Modeliranje

Primer funkcije Revolved boss/base Koristeći funkciju revolve modelirati deo – torus, kao na slici ispod.

1. Klik New. Klik Part, OK. 2. Klik Front Plane a zatim klik na Sketch.

3.Selektovati centerline,

početka , proizvoljne dužine

4. Klik circle

Vertikalnu liniju koja počinje od koordinatnog

zatim

OK.

I nacrtati krug levo od centerline.

5. Klik Smart Dimension,

klik na nacrtani krug I podesiti prečnik na neku

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3D Modeliranje

vrednost recimo 15mm a zatim selektovati centerline I centar kruga I definisati njihovo rastojanje , koristeći funkciju smart dimension,

zatim OK. 6.Komletiran je crtež-sketch. Klik Feature>Revolved Boss/Base

7. Klik centerline kao osu a zatim OK.

8. Deo je modeliran! 9. Kraj.

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3D Modeliranje u inzenjerstvu

****ČAS S1****

RAD SA ZAVARENIM KONSTRUKCIJAMA - WELDMENTS Primer 1. Koristeći modul weldments modelirati zavarenu konstrukciju kao na slici.

1. 2.

Zavarena konstrukcija sastoji se iz četiri dela, Odabrati 3dSketch u Front plane ravni i nacrtati pravu liniju dimenzionisati je na 1000mm,

Right plane

Top plane

3. 4. 5. 6. 7. 8.

Exit sketch, 3d Sketch. Nacrtati dva preostala kraka dužine 500mm, Exit sketch. Dobijen je žičani model, Odabrati željeni profil koji će biti extrud-ovan duž projektovanog 3d sketha. Structural member,

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3D Modeliranje u inzenjerstvu

9. Odabrati rectangular tube, 10. Size: 50x30x2.6 11. Path segment: 3d sketch – prava linija dužine 1000mm, 12. Mogućnost rotacije profila oko svoje ose za neki ugao, 13. Način vodjenja izabranog profila po liniji obezbedjuje funkcija Locate profile,tačke:

Tehnikum Taurunum-VIŠSS 3D Modeliranje u inzenjerstvu 3 14. OK 15. Ponoviti opciju structural member za preostala dva elementa. Voditi racuna da su elementi rotirani oko svoje ose za ugao od 90 ° 16. Ok 17. Sketch Right plane 18. Nacrtati pravougaonih proizvoljnih mera i extrugovati na proizvoljnu dubinu 19. Neophodno je trimovati modelirane elemente jedan u odnosu na drugi. 20. Trim entities.Bodies to trim: selektovati element koji se trimuje-seče. Čekirati allow extension. Trim boundary: face-plane: selektovati odgovarajuće ravni elemenata koje ograničavaju element koji se trimuje. Podesiti elemente koji se seku da li se zadržavaju (keep) ili odbacuju (discard). Ukoliko je neki element “kratak” u odnosu na granice on se automatski produžava zato što je aktivirana opcija allow extension.

21. Ok 22. Ponoviti opciju trim entities na drugi element. 23. U drvetu razgranati opciju Cut list. OBAVEZNO DESNI KLIK ZATIM UPDATE. 24. Ukoliko od ove zavarene konstrukcije zelimo da napravimo sklopni crtez 25. File 26. Make drawing from part 27. Generisati projekcije 28. Annotations 29. Tables 30. Weldment cut list (generise listu svih elementata zavarenog spoja sa karakterističnim merama). Ukoliko bi se pomenuta konstrukcija alanizirala Statički ili dinamički neophodno bi bilo da se svi elementi koji se nalaze razgranati u drvetu pod Cut list saberu primenom funkcije combine što bi značilo da se nakon 23.koraka : 24. Selektovati sve elemente koji se nalaze u cut list (držeći taster ctrl) 25. Desni taster miša 26. Combine 27. Add 28. Konstrukcija je pripremljena za analizu 29. Kraj (napomena: o statičkoj i dinamičkoj analizi zavarfenih konstrukcija biće reči kasnije).

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3D Modeliranje u inzenjerstvu

Kreiranje oblika i mera sopstvenog strukturnog člana i dodavanje u biblioteku standardnih elemenata koji se mogu naći u Structural member meniju Primer 2. Modelirati oblik i mere sopstvenog strukturnog člana i pridodati ga biblioteci standardnih oblika profila. 1. 2. 3. 4. 5.

File, New, Part, Sketch na bilo koji ravan npr. Right plane. Center rectangle.

6. Dimenzionisati 50x35mm. 7. Dodati tacke na polovini sve četiri stranice. 8. Pomenute tacke se dodaju sa ciljem da se profil pozicionira uz liniju vodilju (locate profile) 9. Exit sketch 10.File 11.SaveAs 12.Ime profila npr 50x35. Ekstenzija .sldlfp (Lib file) 13.Fajl sačuvati na lokaciji c:\ProgramFiles\SolidWorks\data\weldment profiles\iso\... 14.Kreirani profil se nalazi u Biblioteci Structural members 15.Kraj.

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3D Modeliranje u inzenjerstvu

…Razno… Gusset opcija Omogućava efikasno modeliranje ojačanja na zavarenim konstrukcijama. 1. Selektovati dve ravni izmeĎu kojih se postavlja ojačanje (Supporting faces),

2. 3. 4. 5.

Odabrati tip ojačanja, d1,d2-mere, T1-debljina, Location: pozicioniranje ojačanja. Ok Kraj.

End capp opcija Postavljanje završetka na čelo elementa.

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3D Modeliranje u inzenjerstvu

Weld beed – opcija kojom se generiše var-tip vara. Ova opcija se mora koristiti pre opcije combine (ako za to ima potrebe).

Širina vara

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3D Modeliranje u inzenjerstvu

...Primer3. Modelirati zavarenu konstrukciju koisteći strukturni član prema ISO standardupravougaona cev (rectangular tube) 50x30x2.6

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3D Modeliranje

cas2

**** ČAS 2 **** Primer funkcije loft U okviru ovog vežbanja primenom funkcije loft, modelirati telo kao što je prikazano na slici ispod.

1. Klik New. Klik Part, OK. 2. Klick Top Plane and Klik Sketch.

3. Klick Circle, nacrtati krug sa centrom u koordinatnom početku. Klik Smart Dimension, kliknuti na krug I dimenzionisati ga tako da mu prečnik bude 30mm.

4. Exit sketch.

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5. Klik Top Plane

3D Modeliranje

cas2

, zatim klik Features>Reference, Plane.

Geometry>Plane.

Podesiti distancu (razmak između dve ravni) np. 20mm, podesiti # na 2 I kliknuti OK.

Rezultat: pojaviće se dve dodatne ravni (plane1, plane2).

Plane 1 and Plane2.

6. Desni klik na Plane 1, klik Sketch.

Crtrl+7

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3D Modeliranje

cas2

nacrtati krug sa centrom u koordinatnom početku. Klik Smart Dimension, 7. Klik Circle, podesiti prečnik kruga na 45mm.

Exit sketch. 8. Klik na Plane 2, klik Sketch.

9. Klik Circle, nacrtati krug sa centrom u koordinatnom početku. Klick Smart Dimension, I dimenzionisati krug tako da njegov prečnik bude 30mm.

Exit sketch.

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3D Modeliranje

10. Klick Features>Lofted Boss/Base

cas2

klick sketch1, sketch2, sketch3.

and OK.

11. Hide Plane 1, 12. Kraj.

hide Plane 2.

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3D Modeliranje

cas2

Primer. Modelirati lopatice turbine prikazane na slici primenom funkcija koje zahtevaju skicu. Ne obraćati posebnu pažnju na mere. Element 1 tela (extrude1)

Element 2 tela (extrude2)

Element 3 tela (extrude 3)

Element 4 tela (loft1) Lopatice turbine Preporuke: Moguć način modeliranja prikazan pomoću ‘drveta’ - tree.

Kratko objašnjenje funkcije pattern: Funkcija Pattern u konkretnom slučaju CirPattern što u prevodu znači kružni šablonski raspored. Kada se završi sa modeliranjem jednog elementa tela koji se ponavlja više puta, u ovom slučaju po krugu, primenjuje se funkcija CirPattern. Ukoliko je raspored elemenata tela koji se ponavljaju linijski onda se primenjuje Linear Pattern.

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3D Modeliranje

cas2

NaÄ?in modeliranja turbine prema redosledu primene funkcija koje su prikazane u drvetu: 1. Extrude 1.

2. Extrude 2

Tehnikum Taurunum-VIĹ SS 3. Extrude 3

4. Plane 1. Reference geometry - plane

5. Plane 2.

3D Modeliranje

cas2

Tehnikum Taurunum-VIĹ SS 6. Loft 1.

7. CirPattern

Kraj.

3D Modeliranje

cas2

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3D Modeliranje

cas2

Primer Modelirati mašinski deo čiji je radionički crtež dat u prilogu. Modelirati mašinski deo prema preporukama odnosno funkcijama koje su korišćenje u okviru 'drveta'-tree. Plane 1 Extrude3

Extrude1 Extrude2

Cut-revolve2

Extrude7-modeliranje međuzublja Extrude5

Preporuke:

Manji prečnik otvora Veći prečnik otvora

Primena kružnog šablonskog rasporeda na modelirano međuzublje

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3D Modeliranje u inženjerstvu

-čas SPEC2RAD SA POVRŠINAMA-SURFACE DESIGN U okviru drugog časa posebna pažnja posvećena je radu sa složenim površinama. Na primeru kućišta fena za sušenje kose, koji je prikazan na slici 1 primenom osnovnih i naprednih funkcija za generisanje prostih i skulptorskih površina izvršeno je njegovo modeliranje. Pre samog procesa projektovanja, konstruisanja i proračuna primenom računara dizajner skicira izgled proizvoda u ovom slučaju kućišta fena za kosu, slika 1.

Slika 1. Skica kućišta fena za sušenje kose Kako napraviti 3D model koristeci 2D skicu ? 1. File, New, Part, 2. Sve tri ravni moraju bii vidljive (npr. U drvetu desni klik na front plane a zatim klik na shownaočare). Ukoliko kartica SURFACE nije aktivirana (desni klik na polje kartica a zatim selektovati surface) 3. Selektovati top plane a zatim sketch, 4. Tools, Sketch tools, Sketch picture 5. Selektovati željenu fotografiju i kliknuti open. 6. Kao rezultat jeste ubačena slika u top plane ravan koja se može prilagodjavati po merama. Postoji i mogućnost rotacije. 7. Podesiti parametre skice prema sledećem ekranu:

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3D Modeliranje u inĹženjerstvu

8. Exit sketch, 9. Sketch top plane nacrtati splajn :

10. Exit sketch, 11. Sketch Top plane i nacrtati donji splajn:

12. Exit sketch, 13. Sketch Right plane, Nacrtati polukrug

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3D Modeliranje u inženjerstvu

14. Exit sketch, 15. Sketch top plane. Nacrtati pravu liniju od Koordinatnog početka duz skice.

16. Exit sketch, 17. Swept Surface

U okviru profile i path opcija. Za profil selektvati Polukrug (Sketch7), path selektovati pravu liniju (sketch8). Options-Flow path. Guide Curves-Selektovati dva spjalna (Sketch 3 i sketch 9). Ok. Napomena: Brojevi koji stoje uz Sketch ne moraju biti identični kao u ovm primeru.

Tehnikum Taurunum-VIŠSS

3D Modeliranje u inženjerstvu

18. Sketch top plane. Nacrtati kosu liniju koja će poslužiti kao osnova za Trim komandu.

19. Exit sketch. 20. Trim surface,

Trim opcija omogućava da se izvrši presek dve površine i da se odstrani ili zadrži željena površina. 21. Sketch, 3d sketch. Skicirati pravu liniju (vertikalnu na dole proizvoljne dužine). Exit sketch. 22. Sketch top plane. Nacrtati splajn prema uvezenoj skici.

Tehnikum Taurunum-VIŠSS

3D Modeliranje u inženjerstvu

Prilikom crtanja splajna u top plane ravni neophodno je da splajn svojim krajnjim tačkama poklapa sa tačkama već napravljenog . Takodje mora se dodati relacija equal curvature kako bi prelazi između dve površine bili glatki.

23. Exit sketcch, 24. Surface swept. Path –splajn, profil- prava linija.

25. U ovom koraku neophodno je povezati dve površine . Pre nego što je aktivira funkcija Surface fill neophodno je izvršiti pripremu. Selektovati Front plane zatim Tools, Sketch Tools, Intersection curve. Na obe površine pojaviće se dve krive linije koje moraju postati deo konstruktivne geometrije. Selektovati obe linije uz konstantno držanje tastera ctrl a zatim kliknuti for construction ili construction geometry. Obe linije postaju isprekidane. Ove dve isprekidane

Tehnikum Taurunum-VIŠSS

3D Modeliranje u inženjerstvu

linije poslužiće kao osnova za generisanje linije vodilje koja će povezati već pomenute dve površine. 26. U okviru sketcha u front plane ravni nartati splajn liniju čije dve krajnje tačke pripadaju već generianim konstrukcionim (isprekidanim) linijama. Dodati relaciju equal curvature (pre toga selekovati nacrtani splajn sa gornjom isprekidanom linijom ) ponoviti identičan postupak sa preostalom konstrukcionom linijom. Podesiti splajn prema nahodjenju. Exit sketch.

27. Surface fill

Tehnikum Taurunum-VIŠSS

3D Modeliranje u inženjerstvu

28. Sketch, 3D sketch i nacrtati polukrug

29. Exit sketch, 30. Trim surface,

31. Uvesti jos jednu ravan paralelnu sa right plane na rastojanju od 340mm (ukoliko je podesena slika na identican način kao u koraku 7). Ukoliko nije ofsetovati ravan otprilike na polovini kružnog luka.

Tehnikum Taurunum-VIŠSS

3D Modeliranje u inženjerstvu

32. Sketch top plane. Nacrtati splajn koji prati dršku fena. Početak splajna. Exit sketch. 33. Swept surface. Profil-prava linija, path-splajn.

34. Sketch top plane. Nacrtati splajn koji prati dršku fena. Početak splajna. Exit Sketch. 35. Sketch, 3d sketch. Nacrtati vertikalnu liniju nadole. Exit sketch. 36. Swept surface.

Tehnikum Taurunum-VIŠSS

3D Modeliranje u inženjerstvu

37. Swept surface

Napomena: Ukoliko se ova komanda ne može izvršiti selektovati ivicu a zatim Extruded surface. 38. Sketch, 3d sketch. Nacrtati pravu liniju. Exit sketch, 39. Swept surface.

Tehnikum Taurunum-VIŠSS

3D Modeliranje u inženjerstvu

40. Sketch, 3d sketch. Nacrtati polukrug koji spaja krajeve drške. Exit sketch. 41. Sketch, 3d sketch on plane. Pre toga selektovati novu ravan generisanu u koraku 31. Nacrtati splajn koji čija jedna tačka pripada polukrugu. Exit sketch.

42. Boundary surface. Povezuje dve površine uzimajući u obzir konstruisane linije vodilje.

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3D Modeliranje u inženjerstvu

Obavezna podesavanja Curvature to Face. Merge tangent faces. Mesh density 20. 43. Sketch Right plane. Nacrtati pravu liniju koja je na -10mm udaljena od X ose i paralelna je sa njom. Dužina linije: celom dužinom konture dela. Exit sketch.

44. Trim Surface.

45. Povezivanje svih površina u celinu – Knit surface.

Tehnikum Taurunum-VIŠSS

3D Modeliranje u inženjerstvu

46. Thicken. Pošto su sve površine povezane može se dati novoformiranoj površini konačna debljina, npr. 1 mm. Surface knit (u drvetu)

47. Reference geometru. Plane. Dodati ravan koja je paralelna sa Top plane na rastojanju od 10 mm. Ova ravan će biti ravan simetrije. 48. Features, Mirror. Preslikavanje tela oko nove ravni iz koraka 47. Obavezno aktivirati merge solids i knit surfaces.

49.

Sketch u ravni smetrije tela nacrtati liniju pod uglom od 75 stepeni. Exit sketch.

Tehnikum Taurunum-VIĹ SS 50.

3D Modeliranje u inĹženjerstvu

Sketch, 3d sketch. Prava linija proizvoljna u radijalnom pravcu u odnosu na modelirano telo. Exit sketch.

51. Reference geometry. Plane.

52. Sketch na ravni iz koraka 51. Nacrtati dve splajn krive. Exit sketch.

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3D Modeliranje u inženjerstvu

53. Sketch na ravan iz koraka 51. Nacrtati krug. Exit sketch. 54. Features. Extruded cut. Na ovaj način generisan je otvor na zadnjem delu kućišta fena. 55. Pattern opcija i to Curve driven pattern.

56. Uvesti ravan paralelnu sa top plane na proizvoljnom rastojanju u blizini drške kućišta fena. 57. Sketch u ravan iz koraka 56. Nacrtati elipsu. Exit sketch. 58. Extrude cut. Na ovaj način generisan je otvor za prekidač za paljenje i gašenje fena. 59. Kraj.

Tehnikum Taurunum-VIŠSS

3D Modeliranje

cas3

**** ČAS 3 **** Primer Modelirati mašinski deo koji je prikazan na slici ispod.

Rešenje: 1. Right Plane zatim Sketch. Nacrtati dve kružnice sa prečnikom 80mm I 60mm. Rastojanja centra dve kružnice iznosi 120 mm.

Predavač: mr Milan Milutinović, dipl.maš.inž.

Tehnikum Taurunum-VIŠSS

3D Modeliranje

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2. Exit Sketch. 3. Extrude

4. Sketch TopPlane. Nacrtati elipsu sa poluosama prema skici I cenatar elipse postaviti na rastojanju 25 mm od ivice.

Convert entities, selektovana ivica postaje crna, zatimn u feature manageru kliknuti na For construction i zatim linija postaje isprekidana i ne mora se brisati iz sketch-a nakon završenog crtanja zatvorene konture. Koristi se kao baza za dimenzionisanje i pozicioniranje kao što je to slučaj sa elipsom. 5. Exit Sketch

Predavač: mr Milan Milutinović, dipl.maš.inž.

Tehnikum Taurunum-VIŠSS

3D Modeliranje

6. Extrude

7. Fillet. Ovu funkciju primeniti I na drugu ivicu.

Predavač: mr Milan Milutinović, dipl.maš.inž.

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Tehnikum Taurunum-VIŠSS

3D Modeliranje

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8. Geometry reference. Plane. Postaviti novu ravan paralelnu sa Right Plane na rastojanju od 20 mm.

9. Sketch Plane 1. Nacrtati elipsu sa pozicijom I merama koje su date na slici ispod.

Predavač: mr Milan Milutinović, dipl.maš.inž.

Tehnikum Taurunum-VIŠSS 10. Exit Sketch. 11. Extrude.

12. Fillet.

Predavač: mr Milan Milutinović, dipl.maš.inž.

3D Modeliranje

cas3

Tehnikum Taurunum-VIŠSS

3D Modeliranje

13. Obaranje ivice (selektovaci 4 ivice)

14. Koristeći extrude cut modelirati oba otvora prema merama na slici ispod.

Predavač: mr Milan Milutinović, dipl.maš.inž.

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Tehnikum Taurunum-VIŠSS

3D Modeliranje

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15. Chamfer.

16. Mirror. Omogućava da se telo preslika u odnosu na odabranu ravan.

Ravan oko koje se vrši transformacija preslikavanja

Selektovati telo koje je već modelirano

Predavač: mr Milan Milutinović, dipl.maš.inž.

Tehnikum Taurunum-VIŠSS 17. Sketch Top Plane. Center Line. Text.

18. Wrap. Emboss.

19. Kraj.

Predavač: mr Milan Milutinović, dipl.maš.inž.

3D Modeliranje

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Tehnikum Taurunum-VIŠSS

3D Modeliranje

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Primer. Primenom funkcije hole wizard modelirati otvore na telu kao na slici ispod.

1.Klik New.

Klik Part,

OK.

2.Klik Front Plane

a zatim Klik Sketch.

3.Klik Rectangle, nacrtati pravougaonik. Klik Smart Dimension, pravougaonik 60mm x 60mm.

4.Klik Feature>Extruded Boss/Base,

Predavač: mr Milan Milutinović, dipl.maš.inž.

dimenzionisati

Tehnikum Taurunum-VIŠSS

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podesiti D1 na 20mm and OK. 5. Kliknuti na prednju stranu a zatim Normal to (ctrl+8)

6. Klik Hole Wizard, Hole Type selektovati Counterbore, Standard ANSI Metric, Type Socket Head Cap Screw Veličina #10.

Predavač: mr Milan Milutinović, dipl.maš.inž.

Tehnikum Taurunum-VIŠSS

3D Modeliranje

Klik Positions,

klik 4 tačke blizu temena,

klik Smart Dimension

Predavač: mr Milan Milutinović, dipl.maš.inž.

I dimenzionisati 4 tačke 10mm od ivica.

cas3

Tehnikum Taurunum-VIŠSS

3D Modeliranje

10 10

10 10 10

Klik OK. 7.Kraj!

Predavač: mr Milan Milutinović, dipl.maš.inž.

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Tehnikum Taurunum-VIŠSS

3D Modeliranje

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Primer funkcije Linear Pattern

Primenom funkcije linear Pattern modelirati otvore kao na skici

1.Klik New.

Klik Part,

OK.

2.Klick Front Plane

and klik Sketch.

3.Klik Rectangle, nacrtati pravougaonik. Klik Smart Dimension, pravougaonik 60 x 60.

4.Klik Feature>Extruded Boss/Base,

Predavač: mr Milan Milutinović, dipl.maš.inž.

dimenzionisati

Tehnikum Taurunum-VIŠSS

3D Modeliranje

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podesiti D1 to 20mm, OK. 5. Klik front face a zatim Normal to. (crtl+8)

6 Sketch.

7.Klik Circle,

nacrtati krug blizu jednog temena proizvoljnog prečnika

Predavač: mr Milan Milutinović, dipl.maš.inž.

Tehnikum Taurunum-VIŠSS

8.Klik Smart Dimension,

3D Modeliranje

dimenzionisati krug prema skici ispod.

9.Klick Features>Extruded Cut,

set Direction 1, Through All , OK.

10.Click Linear Pattern, Predavač: mr Milan Milutinović, dipl.maš.inž.

click left edge,

cas3

Tehnikum Taurunum-VIŠSS

3D Modeliranje

on Direction 1 podesiti D1 to 12mm zatim Instances # to 3.

11.Klick bottom edge,

on Direction 2 podesiti rastojanje D2 to 12 zatim Instances # to 3.

12.Klik unutar boksa Features to Pattern.

Predavač: mr Milan Milutinović, dipl.maš.inž.

cas3

Tehnikum Taurunum-VIŠSS

Otvoriti drvo, selektovati Extrude 2

OK. 13.Kraj!

Predavač: mr Milan Milutinović, dipl.maš.inž.

3D Modeliranje

cas3

SolidWorks速 Tutorial 12 CLAMP

Preparatory Vocational Training and Advanced Vocational Training

To be used with SolidWorks速 Educational Edition Release 2008-2009

© 1995-2009, Dassault Systèmes SolidWorks Corp. 300 Baker Avenue Concord, Massachusetts 01742 USA All Rights Reserved. U.S. Patents 5,815,154; 6,219,049; 6,219,055 Dassault Systèmes SolidWorks Corp. is a Dassault Systèmes S.A. (Nasdaq:DASTY) company. The information and the software discussed in this document are subject to change without notice and should not be considered commitments by Dassault Systèmes SolidWorks Corp. No material may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose without the explicit written permission of Dassault Systèmes SolidWorks Corp. The software discussed in this document is furnished under a license and may be used or copied only in accordance with the terms of this license. All warranties given by Dassault Systèmes SolidWorks Corp. as to the software and documentation are set forth in the Dassault Systèmes SolidWorks Corp. License and Subscription Service Agreement, and nothing stated in, or implied by, this document or its contents shall be considered or deemed a modification or amendment of such warranties. SolidWorks® is a registered trademark of Dassault Systèmes SolidWorks Corp. SolidWorks 2009 is a product name of Dassault Systèmes SolidWorks Corp. FeatureManager® is a jointly owned registered trademark of Dassault Systèmes SolidWorks Corp. Feature Palette™ and PhotoWorks™ are trademarks of Dassault Systèmes SolidWorks Corp. ACIS® is a registered trademark of Spatial Corporation. FeatureWorks® is a registered trademark of Geometric Software Solutions Co. Limited. GLOBEtrotter® and FLEXlm® are registered trademarks of Globetrotter Software, Inc. Other brand or product names are trademarks or registered trademarks of their respective holders.

COMMERCIAL COMPUTER SOFTWARE - PROPRIETARY U.S. Government Restricted Rights. Use, duplication, or disclosure by the government is subject to restrictions as set forth in FAR 52.227-19 (Commercial Computer Software Restricted Rights), DFARS 227.7202 (Commercial Computer Software and Commercial Computer Software Documentation), and in the license agreement, as applicable. Contractor/Manufacturer: Dassault Systèmes SolidWorks Corp., 300 Baker Avenue, Concord, Massachusetts 01742 USA Portions of this software are copyrighted by and are the property of Electronic Data Systems Corporation or its subsidiaries, Copyright© 2009 Portions of this software © 1999, 2002-2009 ComponentOne Portions of this software © 1990-2009 D-Cubed Limited. Portions of this product are distributed under license from DC Micro Development, Copyright © 1994-2009 DC Micro Development, Inc. All Rights Reserved. Portions © eHelp Corporation. All Rights Reserved. Portions of this software © 1998-2009 Geometric Software Solutions Co. Limited. Portions of this software © 1986-2009 mental images GmbH & Co. KG Portions of this software © 1996-2009 Microsoft Corporation. All Rights Reserved. Portions of this software © 2009, SIMULOG. Portions of this software © 1995-2009 Spatial Corporation. Portions of this software © 2009, Structural Research & Analysis Corp. Portions of this software © 1997-2009 Tech Soft America. Portions of this software © 1999-2009 Viewpoint Corporation. Portions of this software © 1994-2009, Visual Kinematics, Inc. All Rights Reserved.

SolidWorks Benelux developed this tutorial for self-training with the SolidWorks 3D CAD program. Any other use of this tutorial or parts of it is prohibited. For questions, please contact SolidWorks Benelux. Contact information is printed on the last page of this tutorial. Initiative: Kees Kloosterboer (SolidWorks Benelux) Educational Advisor: Jack van den Broek (Vakcollege Dr. Knippenberg) Realization: Arnoud Breedveld (PAZ Computerworks)

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Clamp In this tutorial we are going to make a clamp. Many of the topics we will use you have seen already, but we are also going to show you some new tools, including: -

Movements in an assembly.

The creation of a rendering with PhotoWorks.

First, we are going to mold the parts, and then we will make the assembly, in which you can see the exact movements of the product. Finally, we are going to make a rendering in PhotoWorks.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Work plan

The first part we are going to make is the base. In the illustration below you can see the dimensions.

First, you will make a work plan. How would you build this part? The main problem in this part is that almost all the vertical planes are at an angle of 5째, which is often the case with castings. To achieve that angle in the model, we use a new feature: Draft. Make a plan by yourself for how to create this model.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

1 2

Start SolidWorks and open a new part. Select the Front Plane and make a sketch like you see in the illustration on the right. Can you build this sketch by yourself? Fine! After that continue to Step 6. If you cannot build this sketch, then follow the next steps.

Draw the lines as shown on the right. Note the position of the origin.

Now, select the whole sketch (all lines and the centerline). The easiest way to do this is by dragging a frame around the whole sketch. Next, click on â&#x20AC;&#x2DC;Mirror Entitiesâ&#x20AC;&#x2122; in the CommandManager.

Set the dimensions in the sketch as shown on the right.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Extrude the sketch over a length of â&#x20AC;&#x2DC;100mmâ&#x20AC;&#x2122;.

We are now going to make the mounting holes. Create a sketch on the upper surface of the model as shown in the illustration on the right. Can you build this sketch by yourself? Great! Continue to Step 14. If you cannot build this sketch, than follow the next few steps.

1. First, select the plane where you want to make the sketch. 2. Click on Normal To in the menu that appears.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Next, draw the two centerlines, as illustrated on the right. Be careful to draw the centerlines in the exact center of the model. To see if this really works out properly, you can verify it with the Midpoint symbols, which you can find at the end of the centerlines.

Draw a circle, similar to the illustration on the right.

Now mirror the circle: 1. Select the circle. 2. Hold the <Ctrl> key and select the vertical centerline. 3. Select â&#x20AC;&#x2DC;Mirror Entitiesâ&#x20AC;&#x2122; in the CommandManager.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

The two circles we have created will be mirrored a second time: 1-3 Select the two circles we have already drawn before and the horizontal centerline. Use the <Ctrl> key. 4. Select ‘Mirror Entities’ in the CommandManager.

Add the dimensions as shown to the sketch.

Make an Extruded Cut from the sketch with depth ‘Through All’.

Hint!

In these two sketches we have mirrored some parts. This not only saves

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

time because you have to draw less, but the mirrored parts also remain constrained to each other and will always be symmetrical. 15

Now, select the front plane from the model and select Normal To. Make a sketch on this plane.

Can you build this sketch all by yourself? Great! Continue at Step 25. If you cannot build this sketch, then follow the next steps.

First, draw a centerline from the origin vertically upwards. The exact length does not matter.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Draw a horizontal line as illustrated on the right. The beginning of the line is at the upper surface of the model. The endpoint is on the vertical centerline. Push the <Esc> key to abort the line command.

Now, draw a second line as shown. The beginning of the line is exactly on the beginning of the last line you drew. The line is not positioned vertically but at a slight angle in relation to the vertical centerline.

1. Click on Arc in the CommandManager. 2. Click on Tangent Arc in the PropertyManager. 3. Click on the endpoint of the line you have just drawn to get the first point of the arc. 4. To get the endpoint of the arc, click on the centerline as shown. 5. Click the <Esc> key to abort the command.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

1. Select the centerline. 2. Hold the <Ctrl> key and select the center of the arc. This is marked in the sketch as a little ‘x’. 3. Click on ‘Coincident’ in the PropertyManager.

Select the whole sketch (including the centerline), and click on ‘Mirror Entities’ in the CommandManager.

Next, you have to draw a circle. Put the center of the circle on the center of the arc.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Set the dimensions in the sketch as shown.

Extrude this sketch. 1. Set the depth to ‘25mm’. 2. Make sure your extrusion extends in the right direction with Reverse Direction. Rotate the model to its isometric position. Otherwise, you will not be able to see this! 3. Click on OK.

We are going to set all vertical planes at an angle of 5°. For this we use a new feature: Draft. Click on ‘Draft’ in the CommandManager.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

First, we select the ‘Neutral Plane’. This is the partitioning plane from the mold or matrix. Rotate the model so you have a good view of the bottom. Select the bottom plane.

We can now select the planes that we want to tilt. Click on all vertical planes as shown in the illustration on the right. There are 7 planes in total. To select them all, you will have to rotate the model every now and then.

Next, you have to set two more items. 1. Set the ‘Draft Angle’ to ‘5°’ in the PropertyManager. 2. In the model the angle direction is indicated by an arrow. Make sure this arrow points upward. You can change direction by clicking on the arrow. 3. Click on OK in the PropertyManager.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Select the right plane in the model and make the sketch as shown. If you can do it yourself, then continue to Step 37, if not, follow the few next steps.

Draw a line similar to the one in the illustration.

Use the Autotransitioning technique that we used before when we wanted to draw a part of a circle using the line command. 1. Move the cursor away from the last point that you drew. 2. Replace the cursor exactly to the last point again (do NOT click on it!) 3. Move the cursor away and you will be drawing an arc. 4. Click as shown in the illustration to set an arc.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Click on the spot as shown on the right. Use the dotted auxiliary line: it is aligned to the circle. Note the two yellow icons near the cursor. These must be visible at the moment that you set the endpoint.

Click on the beginning of the first line now.

Draw a circle with its midpoint on the midpoint of the arc.

Set the dimensions as shown on the right.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Extrude this sketch. 1. Select the option ‘Mid Plane’ in the PropertyManager. 2. Set the distance to ‘6mm’. 3. Click on OK.

Round the corners from the model with the ‘Fillet’ feature. Set the radius to ‘1.5mm’ and select the edges as shown on the right. Click on OK.

Use the ‘Fillet’ feature again to round off the rest of the edges. Do this using a radius of ‘1mm’.

The first part of the clamp

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

is now ready. Save it as: base.SLDPRT.

Work plan

The next part we will create is half of the arm. This part is made from sheetmetal, so we will be using the SolidWorks SheetMetal functions. To make this part you need to use two new features: 1. Jog, which allows you to make a double bend in a part. 2. Sketched bend, which allows you to draw a line on a sheet of metal that will act as a bending line.

Making this part is actually very simple. 1. Use sheetmetal. While making this part is ease, the sketch we have to make is fairly complicated! 2. Next we will Jog the line. 3. Finally, we will bend the sheet with the Sketched Bend command.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Open a new part. Select the right plane and make the sketch as shown on the right. Did you succeed? Continue with Step 56. If you fail, follow the next few steps.

Draw three centerlines on the right plane first, as shown on the right. Draw the first centerline horizontally from the origin to the left. Set the dimensions as shown in the illustration.

1,2 Select the two bottom centerlines (use the <Ctrl> key. 3. Click on ‘Offset Entities’ in the CommandManager. 4. Set the distance to ‘8 mm’ in the PropertyManager. 5. Check the option ‘Bidirectional’. 6. Click on OK.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Draw a circle with the midpoint on the left end of the centerline. Set the dimension to ‘Ø10mm’.

Next, draw a line. 1. Set the beginning at random, as shown on the right. 2. Set the second point on the circle. Make sure it touches the circle at the right spot. You can tell by the little icon that pops up at the cursor. 3. Push the <Esc> key on the keyboard to abort the Line command.

1,2 Select the line and the centerline as shown on the right. 3. Click on ‘Mirror Entities’ in the CommandManager.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Set the angle between the lines to ‘5°’.

Next, we will trim the part of the circle that lies between the lines. 1. Click on ‘Trim Entities’ in the CommandManager. 2. Click on ‘Trim to closest’ in the PropertyManager. 3. Click on the parts of the circle that need to be removed.

We need another half circle at the other end of the sketch. 1. Click on Arc in the CommandManager. 2. Click on Tangent Arc in the PropertyManager. 3. Click on the end of the upper line. 4. Click on the end of the bottom line.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

We want to round the four corners now. 1. Click on Sketch Fillet in the CommandManager. 2. Set the radius to ‘8mm’ in the PropertyManager. 3. Click on the bottom corner as shown. 4,5 Click on both lines which we want to connect with a bended line.

A message appears. Click on ‘Yes’.

Explanation!

What does the message in Step 51 mean? The upper sloped lines in the sketch are mirrored lines (from Step 46). For this reason, the lines are connected together by a relation: they are symmetrical around the centerline and equally long. When you want to round one of these lines, their lengths will not be equal anymore. The symmetry will be disconnected or destroyed and that is what the software warns you about. The lines were black (fully defined) but after you click on ‘Yes’ and the symmetry is disconnected, they will turn blue (not fully defined). We will show you how to resolve this later.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Set the radius to ‘4mm’ and round the two other corners in the same way.

To return to a fully defined sketch, you have to follow the next few steps: 1. Remove the dimension of ‘5°’. 2. Add two angles of ‘2.5°’ instead.

Finally, we have to draw two holes. Draw two circles as shown on the right. The midpoints are on the ends of the bottom centerline. Set the size for one of the holes to ‘Ø6mm’.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

1. Select both (use the <Ctrl> key). 2. Click on ‘Equal’ in the PropertyManager.

We will make a part with sheetmetal from this sketch. Make sure the tab ‘SheetMetal’ is displayed in the CommandManager. If not, right-click on one of the other tabs and select the ‘SheetMetal’ function in the pop-up menu.

1. Click on ‘SheetMetal’ in the CommandManager. 2. Click on ‘BaseFlange/Tab’.

1. Set the thickness for the material to ‘2.5mm’ in the PropertyManager. 2. Click on OK.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

We will now make a double bend in the sheet. This is called a Jog. Select the flat surface from the model and make the sketch as shown: is consists of one horizontal line and a dimension.

Click on ‘Jog’ in the CommandManager.

1. First, click on the part of the model that must be fixed. Click on the spot as indicated. 2. Set the distance to ‘3mm’. 3. This distance is called the Outside Offset. 4. Select the option Bend centerline to set the position of the jog. 5. Make sure that the jog goes backwards with the Reverse direction command as shown in the illustration. 6. Click on OK.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Next’ we have to bend the upper end of the arm. Select the plane as shown and make a sketch. Draw a vertical line and set the distance to ‘110mm’ from the origin.

Click on ‘Sketched Bend’ in the CommandManager.

1. Again, you will have to indicate first which plane stays fixed. Click on the spot as indicated in the illustration. 2. Set the angel to ‘90°’. 3. Make sure that this part of the sheetmetal is bending in the right direction with Reverse direction. The arrow in the model indicating the direction must point backwards. 4. Click on OK.

This model is now finished. Save it as: Armright.SLDPRT.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

We need a mirrored copy from this part. This is very easy to create. 1. Select the plane in the model as shown. This is the ‘mirror’ for the mirror command (the mirror ‘axis’). 2. Open the pull-down menus. 3. Click on ‘Insert’ in the pull-down menus. 4. Click on ‘Mirror Part…’.

Click on OK in the PropertyManager.

A new file has opened containing the mirrored part. This part is constrained to the original part. If you change the original, the mirrored copy will also change. Save this part as: Armleft.SLDPRT. Work plan

The next part is a bracket. This is much simpler than the last part. How would you handle this? Make a plan!

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

We will build this part in sheetmetal too. 69

Open a new file and make the sketch as shown on the right plane. When done, continue to Step 74. If you have trouble, follow the next few steps.

Draw a centerline horizontally to the right from the origin. Set a size for the length: ‘45mm’.

Draw two circles with the midpoints at both endpoints of the centerline. Set the dimension from one of the circles to ‘Ø6mm’. Select both circles and set an Equal relation.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

1. Select the centerline. 2. Click on ‘Offset Entities’ in the CommandManager. 3. Set a distance of ‘6.25mm’ in the PropertyManager. 4. Check the option ‘Bidirectional’. 5. Check the option ‘Cap ends’ and next check ‘Arcs’. 6. Click on OK.

First, click on ‘SheetMetal’ in the CommandManager then on ‘Base Flange’.

1. Set the thickness of the material to ‘2.5mm’ in the PropertyManager. 2. Click on OK.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Make the sketch as shown. Draw a vertical line and set the dimension from that line to the center of the left hole to ‘12.5mm’.

Click on ‘Jog’ in the CommandManager and set the following features in the PropertyManager: 1. Click on the middle of the model to determine the fixed plane. 2. All other settings will be the same as the last time you did this. So you do not have to change them. Check the settings with the data from the illustration. 3. Click on OK.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Make a second ‘Jog’ at the other end of the bracket. Do exactly the same as you did in the last two steps, only now set the vertical line ‘12.5mm’ from the right hole.

Save the file as: link.SLDPRT. We will make the pin now. This is a simple part that you can probably make by yourself without any problem. We only provide the main steps.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Open a new part and make the sketch as shown on the front plane. It consists only of one circle. Extrude this circle with a length of ‘100mm’.

Make a sketch as shown. Use the centerline to make sure that the rectangle is exactly in the middle of the circle. The height of the rectangle does not matter.

Make an Extruded Cut from this sketch. 1. The depth is ‘15mm’. 2. Check the option ‘Flip side to cut’ to make sure that the material on the outside of the rectangle will be removed and not on the inside, like we would do with a normal Extruded Cut.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Make the sketch as shown. Draw the diagonal centerline. Next draw a circle on the midpoint of the centerline. Make an Extruded Cut with a depth set to ‘Through All’ from this sketch.

Finally, chamfer the end of the pin by ‘1mm x 45°’ using the Chamfer feature.

Save the file as Rod.SLDPRT.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Work plan

The next part is the cap. It only consists of one feature: a Revolved Boss.

Open a new part and make the sketch as shown on the front plane. Make the sketch complete without any fillets. Only when the sketch is done, use the Sketch Fillet command. Make a Revolved Boss, over ‘360°’ from this sketch.

Save the file as Socket.SLDPRT.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Work plan

Finally, we have to build a rivet. This is also a part made from only one Revolved Boss feature. We need two lengths of rivets though: ‘16mm’ and ‘11mm’. That is why we will make two configurations from this part.

Open a new part. Make the sketch as shown on the front plane. You can of course draw half of the sketch first and mirror it around the centerline. The sloped edge must be done with the Sketch Chamfer command.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

1. Select the upper horizontal line in the sketch. This will be our rotation axis. 2. Click on Boss/Base’.

‘Revolved

Click on OK in the PropertyManager to make the rotation.

Go to the ConfigurationManager.

Change the name of the current configuration from ‘Default’ to ‘16mm’.

Add a new configuration. 1. Right-click on the upper line. 2. Click on ‘Add configuration…’.

1. Name for the new configuration ‘11mm’. 2. Click on OK.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

1. Double-click on the model. The dimensions appear. 2. Double-click on the dimension ‘16mm’. The ‘Modify’ menu appears. 3. Change the ‘11mm’.

size

4. Select ‘This configuration’. The changed value will only be altered in the active configuration now and not in the other one. 5. Click on Rebuild to activate the changes. 6. Click on OK.

This part is ready too. Save it as Rivet.SLDPRT.

All parts of the clamp are now ready, so we can start building the assembly. Try it yourself first. If you fail, follow the steps below. Open a new assembly.

Place the base in the assembly, next the pin and the cap. You can place all items at random on the screen.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

1. Click on â&#x20AC;&#x2DC;Mateâ&#x20AC;&#x2122; in the CommandManager. 2,3 Select the two planes from the pin and the base as illustrated on the right. 4. Because the pin is in the wrong direction, you must click on AntiAligned in the CommandManager. The pin is reversed now. 5. Click on OK.

Select the two planes as shown. Click on OK.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Select the surface at the inside of the cap as shown.

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1. Rotate the model and select the plane from the axis as shown. 2. Double-click on OK to end the Mate command.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

101

Use ‘Insert Component’ to put the two arms in the assembly.

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Click on ‘Mate’ in the CommandManager again. Select the two edges as shown. Click on OK.

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Rotate the model and do the same again for the other arm.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

105

Try to drag the parts around the screen now. You will notice that you can only move the pin and the cap up and down and rotate the arms. These movements are determined by the mates you have added. Add two brackets to the assembly.

106

Start the Mate command again and make a ‘Coincident’ mate (not a ‘Concentric’!) Select the two edges as shown on the right. Click on OK.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

107

Select the two edges as shown. Click on OK.

108

Set the other bracket as well. Use the option Anti-Aligned to reverse the bracket.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

109

You can move the arm now and you will see the clamp functioning. To finish the model you need to add the rivets. You will need one rivet of ‘11mm’ and two rivets of ‘16mm’.

110

The assembly is ready now. Save the file as Clamp.SLDASM. Checking the model

When you move the arm of the clamp, you will notice that the brackets collide with the base. To solve this problem, we need to extend the base a bit.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

111

The easiest way to extend the size of the base is to do the following: 1. Double-click on the base. The dimensions appear. 2. Find the length (100) and double-click on this. The ‘Modify’ menu appears. 3. Change the ‘110mm’.

size

4. Click on Rebuild, and check to see if the change is correct. 5. Click on OK.

Checking the model

The arm from the pin can rotate 360 degrees and in the software, the arm goes right through the material of the base. This is not possible in the real world, so we want to limit the rotation of the arm.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

112

To find out the most extreme positions, we will follow the next few steps: 1. Make sure the arm is pointing upward. 2. Click on ‘Move Component’ in the CommandManager. 3. Select the option ‘Collision Detection’ in the PropertyManager. 4. Check the function ‘Stop at collision’.

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Move the arm again. Notice that the movement is limited to the position where two parts collide. At that point, the colliding parts turn green.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

Work plan

Finally, we will make a rendering from this model. A rendering is a picture of the model with all features displayed as realistically as possible. You can use a rendering for many communications purposes, such as in a presentation. To make a rendering in SolidWorks we use a separate piece of software called PhotoWorks. This is a very robust program with a wide range of capabilities. We will show you how to make a standard rendering using the default settings.

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Check to see if PhotoWorks is activated. 1. Click on the tab ‘Office Products’ in the CommandManager. When the button ‘PhotoWorks Studio’ is present, you are ready with this application. 2. If the button ‘PhotoWorks Studio’ is not visible, click on ‘SolidWorks Office’. 3. Click on ‘PhotoWorks’. The buttons and functions for PhotoWorks appear in the CommandManager now.

115

Put the model in perspective. This will give a more natural look than an isometric or diametric view. 1. Click on View Settings. 2. Click on ‘Perspective’. Rotate the model to establish the view that you want to show in the rendering.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

116

First, we will make a rendering with the default settings. Click on ‘Render’ in the CommandManager. You will notice that the image is displayed differently, including shadows and reflections.

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We will determine the kind of material for the different parts. Click on ‘Appearance’ in the CommandManager.

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You will see a small ‘Preview’ window in which you can see your settings. You can close the window if you want, you will not need it in this exercise. The whole assembly is selected now. 1. Right-click on ‘Clamp.SLDASM’ in the PropertyManager. 2. Click on ‘Clear Selections’.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

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1. Check the option Apply changes at assembly component level in the PropertyManager. 2. Click on the cap in the model.

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1. Click on the tab RealView/PhotoWorks Items (on the right side of your screen) in the task pane. 2. Click on ‘Rubber’. 3. Click on ‘Matte’. 4. You will only find one kind of material in this category. Select it. The cap is now made of ‘matte rubber’.

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1. Click on the pushpin in the PropertyManager. The PropertyManager will remain visible even after you have clicked OK. This will come in handy when you are going to determine the kind of material to use for several parts. 2. Click on OK.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

122

Select the base in the model.

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Select â&#x20AC;&#x2DC;cast ironâ&#x20AC;&#x2122;. Click on OK in the PropertyManager.

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You can do the same with all of the other parts yourself. You can also determine colors for the different parts. Try this or keep the default settings.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

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Now that we have determined the materials, we can set the ‘scene’ around a product. The scene is the environment, the background, and/or the lighting. SolidWorks has a number of standard scenes. Click on ‘PhotoWorks Studio’ in the CommandManager.

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1. You can browse the available scenes in the PropertyManager. Every time you will be presented with the preview. Select one scene and use it. 2. Set the ‘Render Quality’ at least to ‘medium’ or you will not see any shadows. 3. Click on ‘Render’ in the CommandManager.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

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The rendered image appears. You can browse to another scene in the PropertyManager and click on ‘Render’ again.

Hint!

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The rendering sometimes takes a while, especially when you use high quality with a lot of light sources and shadows. To speed this process up, you can render a part of the model. Click on ‘Render Area’ in the CommandManager and indicate on the screen which part of it you want to render.

Did you find the rendering you wanted, you can save it in a separate file, for instance in JPEG format. You can use it for a report or on a website. Click on Render to file.

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

129

Set the following features in the menu that appears: 1. Select a name for the file, ‘Clamp’. 2. Select a file format. ‘JPEG’ can be used by a lot of applications. 3. Select the ‘Image size’. This depends on what you want to do with it, but a width of between 1000 and 2000 pixels is usually sufficient. The height will adapt itself automatically. 4. Click on ‘Render’.

Hint!

What you have just seen in PhotoWorks in only the beginning of what you can do with this application. You can change whatever you like: the background, the surface, the lighting, and so on. These steps are not included in this tutorial, but if you are interested, try them yourself.

What are the main features you have learned in this tutorial?

In this tutorial you have learned a few new tools. •

You have used Jogs in the sheetmetal features.

•

You have used the Draft feature to add sloped planes to the model.

•

You have seen how to limit the movement in an assembly.

•

You have used PhotoWorks.

•

The most important thing you have gained, however, is the practice the tutorial has provided in modeling and, even more importantly, making sketches.

This is the last tutorial from SolidWorks in this series. When you have completed all twelve exercises and have done some additional practice, you should be able to work with SolidWorks quite well now. To get even better, all you need to do is practice, practice, and practice some more! Not all of the features in SolidWorks were presented in these tutorials. That would be virtually impossible, given the vast possibilities and features in the software. SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

You are now a SolidWorks ‘user’ and that means you can try and build something on your own. And you will learn al lot from this! And if you fail with one or more functions, find the Help function. It will help you to get on with your work. For Dutch students, it is possible to get a book called ‘Productmodelleren met SolidWorks’ in which practically all possibilities from SolidWorks are described. Do not be afraid to try things yourself and keep on practicing. You will soon be able to call yourself a SolidWorks expert!

SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp

SolidWorks works in education One cannot imagine the modern technical world without 3D CAD. Whether your profession is in the mechanical, electrical, or industrial design fields, or in the automotive industry, 3D CAD is THE tool used by designers and engineers today. SolidWorks is the most widely used 3D CAD design software in Benelux. Thanks to its unique combination of features, its ease-of-use, its wide applicability, and its excellent support. In the software’s annual improvements, more and more customer requests are implemented, which leads to an annual increase in functionality, as well as optimization of functions already available in the software. Education A great number and wide variety of educational institutions – ranging from technical vocational training schools to universities, including Delft en Twente, among others – have already chosen SolidWorks. Why? For a teacher or instructor, SolidWorks provides user-friendly software that pupils and students find easy to learn and use. SolidWorks benefits all training programs, including those designed to solve problems as well as those designed to achieve competence. Tutorials are available for every level of training, beginning with a series of tutorials for technical vocational education that leads students through the software step-by-step. At higher levels involving complex design and engineering, such as double curved planes, more advanced tutorials are available. All tutorials are in English and free to download at www.solidworks.com. For a scholar or a student, learning to work with SolidWorks is fun and edifying. By using SolidWorks, design technique becomes more and more visible and tangible, resulting in a more enjoyable and realistic way of working on an assignment. Even better, every scholar or student knows that job opportunities increase with SolidWorks because they have proficiency in the most widely used 3D CAD software in the Benelux on their resume. For example: at www.cadjobs.nl you will find a great number of available jobs and internships that require SolidWorks. These opportunities increase motivation to learn how to use SolidWorks.

Student Kit is available through your teacher or instructor. The choice to work with SolidWorks is an important issue for ICT departments because they can postpone new hardware installation due to the fact that SolidWorks carries relatively low hardware demands. The installation and management of SolidWorks on a network is very simple, particularly with a network licenses. And if a problem does arise, access to a qualified helpdesk will help you to get back on the right track. Certification When you have sufficiently learned SolidWorks, you can obtain certification by taking the Certified SolidWorks Associate (CSWA) exam. By passing this test, you will receive a certificate that attests to your proficiency with SolidWorks. This can be very useful when applying for a job or internship. After completing this series of tutorials for VMBO and MBO, you will know enough to take the CSWA exam. Finally SolidWorks has committed itself to serving the needs of educational institutions and schools both now and in the future. By supporting teachers, making tutorials available, updating the software annually to the latest commercial version, and by supplying the Student Kit, SolidWorks continues its commitment to serve the educational community. The choice of SolidWorks is an investment in the future of education and ensures ongoing support and a strong foundation for scholars and students who want to have the best opportunities after their technical training. Contact If you still have questions about SolidWorks, please contact your local reseller. You will find more information about SolidWorks at our website: http://www.solidworks.com SolidWorks Benelux RTC Building Jan Ligthartstraat 1 1800 GH Alkmaar, Netherlands Tel: +31 (0)72 514 3550

To make the use of SolidWorks even easier, a Student Kit is available. If the school uses SolidWorks, every scholar or student can get a free download of the Student Kit. It is a complete version of SolidWorks, which is only allowed to be used for educational purposes. The data you need to download the SolidWorks voor lager en middelbaar technisch onderwijs Tutorial 12: Clamp