LINE TECH Linear Modules Ready to built-in linear modules with drive
LINE TECH Linear Modules
– Anodized profile, produced in extrusion molding method – Linear rail guiding system (LM3–LM5) – Actuation by ball screw, high-helix lead _ screw or toothed belt – Optional inductive or mechanical limit _ switches – AC servo drives or step motors, appro priate continuous or linear path control
LINE TECH | 2
LINE TECH Linear Modules
Table of content
page/s
– Design fundamentals____________________________________________________ 4 – Designation system with ball screw drive__________________________________6–7 – Designation system with toothed belt drive________________________________8–9 –
Notices for the product selection: - Drives___________________________________________________________ 10–11 - Mounting conditions_______________________________________________ 12–13 - Limit switches, Cables and Mating plugs_____________________________ 14–15 - Tables for cable assembly / plug code___________________________________16
– Load rates____________________________________________________________17 – Dimension drawings - LM3 (Size 65)____________________________________________________ 18–21 - LM4 (Size 80)____________________________________________________ 22–25 - LM5 (Size 110)___________________________________________________ 26–29 – Dimensions motor mount________________________________________________30 – Grooves and sliding blocks, Profile cross-sections_______________________ 32–33 – Calculation guidelines_______________________________________________ 34–35
3 | LINE TECH
LINE TECH Linear Modules Design fundamentals
LINE TECH Linear Modules
Lubrication
LINE TECH linear modules are of modular conception, ready to built-in linear carriages with drive unit. A linear rail guide with two guiding carriages is used as guiding element. The drive unit preferably consists of ball screws or toothed belts. With little axial load, also high-helix lead screws “Speedy” can be used. The guidance as well as the actuation are protected by a steel strapping or by the drive belt against the intrusion of dirt, chipping etc. The housing as well as the cradle are made of colorless anodized aluminium bars, prefabricated in an extrusion molding process. Additional, external mounted inductive proximity switches allow, in conjunction with servo drives or step motors and the control unit, for the perfect positioning and prevent from the carriage over run.
LINE TECH linear modules stand for a long lasting, maintenance free use. The guide system is therefore equipped with a specially developed device for continuous lubrication. Only the ball screws shall be lubricated approx. every 500 running hours through the provided grease point.
LINE TECH | 4
Service temperature The permissible service temperature of 80° C is predetermined by the composites in use. For the motors and controls refer to the values in the respective publications.
LINE TECH Linear Modules Notes
5 | LINE TECH
LINE TECH Linear Modules Designation system with ball screw drive
L M 3 . 2 . 0500 B R 016 . 1
Linear module (Designation exsample)
Design LM =
Linear module with linear rail guide
Size (BxH) H
… = 3 = size 65 x 85 mm 4 = size 80 x 100 mm 5 = size 110 x 129 mm
B
Construction 2
=
standard version
Stroke absolut [mm] Protection B = N =
with steel strapping without protection
Drive N = R =
without drive (in conjunction with mounting condition „00“) rolled ball screw
Stroke length per revolution [mm]
LM3 LM4 LM5
rolled ball screw: 005, 010, 016 005, 010, 020 1)
005, 010, 032 1)
not possible with ball screw with reduced axial play (preload „R“)
Limit switch 0 1 2 3 4
= = = = =
without limit switch with 2 limit switches and reference position at front (drive mount) with 2 limit switches and reference position at rear (drive mount opposite) with 2 limit switches and additional reference switch at front (drive mount) with 2 limit switches and additional reference switch at rear (drive mount opposite)
* seen from motor opposite towards motor ** available for lateral drive mount only *** standard version
LINE TECH | 6
LINE TECH Linear Modules Designation system with ball screw drive
. 02 . 0 F - S 7 R L N N
5 8 3 _ _ _
583...
Lateral linear guide Connector shell N = S =
= Drawing type N = without lateral linear guide L = lateral linear guide left * R = lateral linear guide right *
without connector shell (loose cabel L = 2.0 m) *** with connector shell
Position limit swiches / connector shell N = L = R =
without limit switch left * right *
Preload ball screw V = preloaded R = reduced axial play (play < 0.02 mm) *** N = without drive 7 = 52 µm / 300 mm *** 5 = 23 µm / 300 mm N = without drive
Tolerance class ball screw Material steel strapping S = R = N =
carbon steel stainless steel without steel strapping
Motor mount N = F = S =
without motor mount mounting plate for LINE TECH motor mounting plate for special motor
Reduction 0 1 2
= = =
without reduction (1 : 1 ** by lateral drive mount) reduction 1 : 2 ** reduction 1 : 2.5 **
Mounting conditions 00 =
without drive (in conjunction with drive type „N“)
01 02 03 04 05 06 07 08
free shaft end with coupling and intermediate flange with crank and clamping set up for lateral drive mount right * set up for lateral drive mount left * set up for lateral drive mount top set up for lateral drive mount bottom with crank, clamping and lateral millimeter scale
= = = = = = = =
00
01
02
03
04
05
06
07
08
7 | LINE TECH
LINE TECH-Linear Modules Designation system with toothed belt drive
L M 3 . 2 . 0500 B Z 155 . 1
Linear Module (Designation exsample)
Design LM =
Linear module with linear rail guide
Size (BxH) H
… = 3 = size 65 x 85 mm 4 = size 80 x 100 mm 5 = size 110 x 129 mm
B
Construction 2
=
standard version
Stroke absolut [mm] Protection B = N =
with steel strapping without protection
Drive N = Z =
without drive (in conjunction with mounting condition „00“) toothed belt drive
Stroke per revolution [mm]
LM3 LM4 LM5
toothed belt drive: 155 205
296
Limit switch 0 1 2 3 4
= = = = =
without limit switch with 2 limit switches and reference position at front (drive mount) with 2 limit switches and reference position at rear (drive mount opposite) with 2 limit switches and additional reference switch at front (drive mount) with 2 limit switches and additional reference switch at rear (drive mount opposite)
* seen from motor opposite towards motor ** available for lateral drive mount only *** standard version
LINE TECH | 8
LINE TECH-Linear Modules Designation system with toothed belt drive
. 12 . 0 F - S N N L N N
5 8 3 _ _ _
583...
= Drawing type
lateral linear guide
N = without lateral linear guide L = lateral linear guide at left R = lateral linear guide at right
Connector box N = S =
without connector box (loose cable L = 2.0 m) *** with connector box
Position limit switches / Connector box N = L = R =
without limit switch left * right *
Gear box mounting
Gear box type N = without gear box ***
N D E F G
= = = = =
without gear box top / rear H top / front K rear / bottom L rear / top M
= = = =
front / top front / bottom bottom / front bottom / rear
H = Servo gear box (AE) S = Standard gear box (FH) Material steel strapping Motor mount N = F = S =
without motor mount motor mount for LINE TECH motor motor mount for special motor
N = S = R =
without steel strapping carbon steel stainless steel
Reduction 0 X
= =
without reduction i = _________ (reduction gear box in conjunction with gear box types „H“ or „S“
Mounting conditions 00 =
without drive (in conjunction with drive type „N“)
11 = 12 = 13 = 14 = 17 = 18 = 19 =
free shaft end right * free shaft end left * shaft end right with coupling and intermediate flange * shaft end left with coupling and intermediate flange * free shaft end on both sides (passing shaft) shaft end on both sides, with coupling and intermediate flange right shaft end on both sides, with coupling and intermediate flange left
25 26 27 28
shaft end right with gear box mounting shaft end left with gear box mounting shaft on both sides, right with gear box mounting shaft on both sides, left with gear box mounting
= = = =
00
11
12
13
14
17
18
19
25
26
27
28
9 | LINE TECH
LINE TECH Linear Modules Selection evidence
Drive In case of any specific or higher requirements to the positioning system we ask you to get in contact with LINE TECH customer service.
In order to simplify the selection of the optimal drive, you’ll find hereafter the various drive solutions in line with the most important performance data. This allows for the comparison of the different drives and the selection of the drive solution appropriate to the customers individual need.
Drive Size Execution 1) Stroke range diam. x pitch [mm] [mm]
rolled
Ball screw
Positioning accuracy [µm/mm]
rolled
elective
LM3
16x5, 16x10, 16x16
≤ 2000
standard: 130/300
LM4
20x5, 20x20, 16x50
≤ 3000
optional:
52/300
LM5
32x5, 32x10, 32x32
≤ 3000
23/300
LM3
16x25, 16x90
≤ 2000
200/300
LM4
24x40, 18x100
≤ 3000
200/300
LM5
30x50, 34x80
≤ 3000
200/300
Toothed belt, circumferential
LM3
GT 5/25
155 mm/U
≤ 7600
200/1000
LM4
GT 5/40
205 mm/U
≤ 7500
200/1000
LM5
ST 8/50
296 mm/U
≤ 7400
200/1000
High-helix lead screw «Speedy»
1)
additional executions on request
2)
max. strength of extension at 1.6 m/sec
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3)
subject to screw length and critical RPM (speed) as well as thread pitch
LINE TECH Linear Modules Selection evidence
Repeating accuracy * [+/- mm]
Reversal backlash [mm]
Speed max. [m/s]
Acceleration Axial load rate C0 max. Cdyn [m/s2] [N]
rolled
normal backlash
rolled
0.01
max. 0.04
3)
10
6950
3400
0.01
or
3)
10
8000
4300
0.01
pre-loaded
3)
10
0.05
0.1 5)
3)
10
—
1500
0.05
0.1 5)
3)
10
—
2300
0.05
0.1 5)
3)
10
—
4200
0.1
zero backlash
1.6 (optional 5)
4)
1560 2)
0.1
zero backlash
1.6 (optional 5)
4)
2200 2)
0.1
zero backlash
1.6 (optional 5)
4)
5280 2)
4)
no mechanical delimitation, depending on charge
5)
special execution preloaded
25000 15000
* without considering reversal backlash
11 | LINE TECH
LINE TECH Linear Modules Selection evidence
Mounting condition The LINE TECH positioning systems can be purchased in various mounting conditions (picture 1 to 10). Depending on the drive selection there are different standard configurations available. For the dimensions see page 30.
Picture 1: Free shaft end straight (Mounting condition 01)
Picture 2: Free shaft end right hand side (Mounting condition 11)
Picture 3: Free shaft end left hand side (Mounting condition 12)
Picture 4: Screw drive with coupling and intermediate plate (Mounting condition 02) LINE TECH | 12
LINE TECH Linear Modules Selection evidence
Picture 5: Screw drive with lateral drive mount left (Mounting condition 05)
Picture 7: Screw drive with lateral drive mount bottom (Mounting condition 07)
Picture 9: Belt drive left with coupling and intermediate plate (Mounting condition 14)
Picture 6: Screw drive with lateral drive mount right (Mounting condition 04)
Picture 8: Screw drive with lateral drive mount top (Mounting condition 06)
Picture 10: Belt drive right with coupling and intermediate plate (Mounting condition 13) 13 | LINEâ&#x20AC;&#x2C6;TECH
LINE TECH Linear Modules Limit switches
The limit switches are used in conjunction with a control unit to limit the stroke (prevent overrunning of the carriage) and to define the reference position. The widely used and LINE TECH standard inductive limit switches are of the PNP-break contact type and show the following characteristics:
The fitting position of the limit switches is shown in picture 13a. The reference position can be allocated either to the plus (+) or to the minus (-) limit switch. Special applications often require a separate reference position switch which will be, upon customer definition, located between the plus and minus limit switch. The limit switch mounted closer to the drive (electrical motor) is named the front or forward limit switch.
0 V (GND)
PNP Opener
On request the limit switches can be connected to a connector shell (picture 13b). The limit switch cable (article ES31.2P) is equipped with a plug on one side.
+ Direction
Reference point bridge Reference point in minus (–) direction Front (drive side) Bridge pin 1–5 Reference point in plus (+) direction Rear (opposite drive side) Bridge pin 3–5
PNP Opener
0 V (GND)
– Direction
+ V DC
On request the following non standard limit switches are available: – PNP-make type (PNP-NO) – NPN-break type (NPN-NC) – NPN-make type (NPN-NO) – Mechanical limit switch (micro switch) The LINE TECH product range includes continuous- and linear path control systems as well as step motors, AC- and DC servo drives. The individual components are tuned together and complete LINE TECH elements to custom made positioning systems.
Load
Supply: 10…30 VDC Current consumption off-load: < 10 mA Load: max. 200 mA Mechanical switch-ratio: ≤ 0.4mm
Limit switch-counterplugs with cable are not included in the delivery. However they can be ordered ready-made at LINE TECH (picture 13b).
Load
Fitting of the limit switches
+ V DC
Limit switches
2 5
4
3
1
Plug SFV50 acc. to IEC 60130-9
Fig. 11: Plug connector with reference point bridge
Colour code legend for Figs. 11 and 12: Load = black +V DC = brown 0 V (GND) = blue
0 V (GND)
+ V DC
PNP Opener Load
PNP Opener
+ V DC
+ Direction
0 V (GND)
+ V DC
Minus (–) direction (load) 0 V (GND) Plus (–) direction (load) +10...30 V DC Reference (load)
Load
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5
PNP Opener
Reference
0 V (GND)
– Direction
The plug pin assignment for standard limit switches is shown in Figs. 11 and 12. The individual pins are assigned as follows:
Load
Plug connector
2 4 1
5 3
Plug SFV50 acc. to IEC 60130-9
Fig. 12: Plug connector with additional reference switch LINE TECH | 14
LINE TECH Linear Modules Limit switches, Cables and Mating plugs
Drive motor Limit switch cable with connector (ES31.2P) Cable length 2 m
Plus limit switch at rear Minus limit switch in front
Control unit Connector shell Picture 13a: Fitting position of the limit switches
Picture 13b: Connector shell and cable
Cables LINE TECH will assemble your cable to your specifications. Single cables can be obtained as per the following order reference:
K L 05 R . 001 . 000 . 103 Cable K
Plug code actor side according to table on next page
Use A B D E L N R S T Z
= = = = = = = = = =
AC motor cable Brake cable DC motor cable encoder cable Limit switch cable Power cable Resolver cable Stepper motor cable (3-phase) Stepper motor cable (2-phase) Special cable
Plug code feed side according to table on next page Code cable assembly according to table on next page Sheath definition Outer / inner
Cable length 03 = 3 m 05 = 5 m 10 = 10 m (for intermediate lengths use next longer cable)
M = N = R =
PUR PVC PUR
(E-chain suitable) * (E-chain suitable) (E-chain suitable) * standard
CFLKB05A
Mating plug for limit switch connection LINE TECH can supply the following plug types for connecting limit switches:
/ PVC / PVC / PUR
CFLKB05B
- Straight socket Article no.: CFLKB05A - Angle socket Article no.: CFLKB05B Fig. 14: Mating plug 15 | LINEâ&#x20AC;&#x2C6;TECH
LINE TECH Linear Modules Tables for cable assembly / plug code
Cable assembly Code
Cable type
Use
Code
001
5x0.25C11Y-S
L, Z
011
002
7x0.25C11Y-S
E, Z
012
003
4x2.0X0.25C11Y-S
E, R
013
004 005
Use
014 2x0.5x11Y-S
B
015
006 007
Cable type
016 4G0.75C11Y
A, S, T
008
017 018
009
4G0.75+2x(2x0.75)C11Y-S
A, D
019
010
4G1.5+2x(2x0.75)C11Y-S
A, D
020
Plug code Code
Plug designation
Use
Code
Cable type
Use
000
loose cable end
all
200
9-pole SUB-D socket
E, R
00…
201
9-pole SUB-D plug
E, R
00…
202
15-pole SUB-D plug
E, R
010
loose cable end for Servostar 300
203
12-pole M23 socket counter-rotating
E, R
011
loose cable end for Servostar 400
204
12-pole M23 socket co-rotating
E
012
loose cable end for Servostar 600
205
12-pole F-code M23 socket counterrotating
E
013
loose cable end for Servostar 700
20…
01…
20…
0……
2……
0……
2……
101
5-pole DIN41524 M16 straight plug
L
301
6-pole 20A 300V M23 plug
A
102
5-pole DIN 41524 90° angle plug
L
302
4+3+PE 9/26A 300/600 V M23 socket
A
103
5-pole DIN 41524 M16 straight socket
L
303
4+3+PE 7.5/11A 60/300 V M23 socket
A
104
5-pole DIN 41524 90° angle socket
L
304
6-pole 11A 380V M23 socket
S
10…
30…
10…
30…
111
2-pole M16 straight plug
B
3……
112
4-pole 90° angle socket
B
3……
LINE TECH | 16
LINE TECH Linear Modules Load rates
Load rate
My0
The load rate is given by the guiding system. Considering the requested life time we recommend to apply max. 20% of the dynamic load rate to the unit.
Mx0 Cz(2)
Torque Also for the torque, the values are determined by the execution of the guiding system. The illustration at right (picture 15) shows the directions of possible torque application.
Cz(1)
Cy(1)
Cy(2)
Mz0
Y
Z
Area momentum For positioning units the maximum allowed deflection angle is of 5’. This value being exceeded will have an impact on the unit’s life-cycle.
Type Drive
Picture 15: Directions of possible torque application
Load rates dynamic Load rates static Torques static Area momentum Cy(1) Cy(2) Cz(1) Cz(2) Cy0 (1) Cy0 (2) Cz0 (1) Cz0 (2) Mx0 My0 Mz0 Iys Izs [kN] [kN] [Nm] [cm4]
LM3
Screw drive 14.6 14.6 16.7 16.7
21.2 21.2 25.3 33.8
170
1’483
1’245
64.5
81.7
LM3
Toothed belt 14.6 14.6 16.7 16.7
21.2 21.2 25.3 33.8
170
1’330
1’117
66.9
82.4
LM4
Screw drive 20.5 20.5 23.4 23.4
29.6 29.6 35.2 47.0
320
1’827
1’535
106.5 152.7
LM4
Toothed belt 20.5 20.5 23.4 23.4
29.6 29.6 35.2 47.0
320
2’590
2’176
131.2 197.8
LM5
Screw drive 33.0 33.0 37.6 37.6
45.9 45.9 54.7 73.0
572
3’476
2’920
432.7 594.0
LM5
Toothed belt 33.0 33.0 37.6 37.6
45.9 45.9 54.7 73.0
572
5’803
4’874
451.9 623.9
17 | LINE TECH
LINE TECH Linear Module LM3 Size 65
Detailled table of content
page(s)
â&#x20AC;&#x201C; Dimension drawings LM3 (size 65): - LM3.2 with linear rail guiding system and screw drive_______________________19 - LM3.2 with linear rail guiding system and toothed belt drive_____________ 20â&#x20AC;&#x201C;21
LINE TECH | 18
LINE TECH Linear Module LM3.2 with linear rail guiding system and screw drive
Stroke
Nominal size Dimensions Designation L L M Screw length Length steel strapping [mm]
Weight [kg]
LM3.2.____
4,6 kg + 0,65 kg/100 mm Stroke
Stroke + 360 L – 58
L + 22
L – 22
19 | LINE TECH
LINE TECH Linear Module LM3.2 with linear rail guiding system and toothed belt drive (without protection)
Stroke 8
206 85
52,5
19,5 4x M4x8
40
26
33
ø 15 h9
85 65
11
19,5
4x M5x8 ø 38 H7x1.5
33 LM L
95
50
95
190 50
50
46
65
20
43
8x M5
Nominal size Dimensions Designation L L M Belt length [mm]
Weight [kg]
LM3.2.____NZ
4,5 kg + 0,60 kg/100 mm Stroke
LINE TECH | 20
Stroke + 435
L – 190
2 x Stroke + 730
LINE TECH Linear Module LM3.2 with linear rail guiding system and toothed belt drive (with steel strapping)
19,5
Stroke
246 85
52,5
19,5 4x M4x8
40
26
33
ø 15 h9
85 65
11
28
4x M5x8
ø 38 H7x1.5
33 LM
95
43 95
L
50
190 50
50
65
46
20
8x M5
Nominal size Dimensions Designation L L M Belt length Length steel strapping [mm]
Weight [kg]
LM3.2.____BZ
4,8 kg + 0,60 kg/100 mm Stroke
Stroke + 475 L – 190
2 x Stroke + 810 L – 10
21 | LINE TECH
LINE TECH Linear Module LM4 Size 80
Detailled table of content
page(s)
â&#x20AC;&#x201C; Dimension drawings LM4 (size 80): - LM4.2 with linear rail guiding system and screw drive_______________________23 - LM4.2 with linear rail guiding system and toothed belt drive_____________ 24â&#x20AC;&#x201C;25
LINE TECH | 22
LINE TECH Linear Module LM4.2 with linear rail guiding system and screw drive
Stroke
Lubrication hole
Nominal size Dimensions Designation L L M Screw length Length steel strapping [mm]
Weight [kg]
LM4.2.____
7,8 kg + 0,95 kg/100 mm Stroke
Stroke + 460
L â&#x20AC;&#x201C; 60
L + 30
L â&#x20AC;&#x201C; 28
23 | LINEâ&#x20AC;&#x2C6;TECH
LINE TECH Linear Module LM4.2 with linear rail guiding system and toothed belt drive (without protection)
Stroke
Nominal size Dimensions Designation L L M Belt length [mm]
Weight [kg]
LM4.2.____NZ
8,4 kg + 0,93 kg/100 mm Stroke
LINE TECH | 24
Stroke + 540
L â&#x20AC;&#x201C; 226
2 x Stroke + 900
LINE TECH Linear Module LM4.2 with linear rail guiding system and toothed belt drive (with steel strapping)
Stroke
Nominal size Dimensions Designation L L M Belt length Length steel strapping Weight [mm] [kg] LM4.2.____BZ
Stroke + 608 L â&#x20AC;&#x201C; 226 2 x Stroke + 1040
L â&#x20AC;&#x201C; 12
9,1 kg + 0,95 kg/100 mm Stroke
25 | LINEâ&#x20AC;&#x2C6;TECH
LINE TECH Linear Module LM5 Size 110
Detailled table of content
page(s)
â&#x20AC;&#x201C; Dimension drawings LM5 (size 110): - LM5.2 with linear rail guiding system and screw drive_______________________27 - LM5.2 with linear rail guiding system and toothed belt drive_____________ 28â&#x20AC;&#x201C;29
LINE TECH | 26
LINE TECH Linear Module LM5.2 with linear rail guiding system and screw drive
50
28
Stroke 28 25
394 42
25
Lubrication hole
129
86
4x M10x20
73
60,6
ø85 f8 ø22 h6
110
LM
13 55
86
L 310 75
75
75
8x M8x18
85
42,5
Nominal size Dimensions Designation L L M Screw length Length steel strapping [mm]
Weight [kg]
LM5.2.____
16,8 kg + 1,90 kg/100 mm Stroke
Stroke + 525 L – 75
L + 50
L – 30
27 | LINE TECH
LINE TECH Linear Module LM5.2 with linear rail guiding system and toothed belt drive (without protection)
Stroke 8
321 85
110
24,5 4x M4x8
88
ø 19 h7
55
50
129 110
9
24,5
4x M6x12 ø 64 H7x2.5
44
LM L
150
75
150
305 75
75
85
110
40
69,5
8x M8x18
Nominal size Dimensions Designation L L M Belt length [mm]
Weight [kg]
LM5.2.____NZ
18,6 kg + 1,48 kg/100 mm Stroke
LINE TECH | 28
Stroke + 670
L – 300
2 x Stroke + 1144
LINE TECH Linear Module LM5.2 with linear rail guiding system and toothed belt drive (with steel strapping)
Stroke 42
18,5
389 85
110
4x M4x8
88
ø 19 h7
55
50
129 110
9
18,5
4x M6x12 ø 64 H7x2.5
69,5
44 LM L
150
75
305 75
75
85
110
40
150
8x M8x18
Nominal size Dimensions Designation L L M Belt length Length steel strapping Weight [mm] [kg] LM5.2.____BZ
Stroke + 726 L – 300 2 x Stroke + 1256
L – 14
19,5 kg + 1,50 kg/100 mm Stroke
29 | LINE TECH
LINE TECH Linear Modules Dimensions motor mount
Dimensions motor mount The basic dimensions for the drive mount are shown in this chapter. The dimensions shown in pictures 16 to 19 are also valid for the respective axially symmetric executions (drive mount left or bottom). The drive mount is likely to protrude above or below in most cases (depending on the size of the drive and the module respective.
Type Dimensions A1 A2 B C D1 D2 [mm]
E F* G*
LM3
300 300 120 70 178 178 66 *
*
LM4
300 300 120 70 178 178 66 *
*
LM5
300 300 120 70 178 178 66 *
*
* dimension depending on motor type
D1 E
Intermediate plate upon motor B
A1 F
C
Picture 16 Screw drive with coupling and intermediate plate
Picture 17 Screw drive with lateral drive mount right
Intermediate plate upon motor A2
D2
E B C
Picture 18 Screw drive with lateral drive mount top
LINE TECH | 30
G
Picture 19 Belt drive right with coupling and intermediate plate
LINE TECH Linear Modules Notes
31 | LINE TECH
LINE TECH Linear Modules Grooves and sliding blocks, Profile cross-sections LM3
Grooves and sliding blocks For all unit sizes the profiles, and often the carriages as well, come with grooves. The cradles of the linear modules LM4 and LM5 are not equipped with such. The fixing on those two types is made through threaded holes. The positions of the grooves as well as the maximum thread reach are shown in profile cross-sections. According to the groove width, sliding blocks of the types NS5, NS6 and NS8 are suitable. The sliding blocks are available at LINE TECH. The order number must show type, material and thread size (e.q. NS5 St M5). The available types are shown in the chart beside.
a
Groove Dimension „a“ Material width [mm] [mm]
Order number
5 6 8
NS5 __ __ NS6 __ __ NS8 __ __
M3 / M4 / M5 M4 / M5 / M6 M4 / M5 / M6 / M8
Material Dim. „a“
Sample:
Profile cross-sections
LM3.2 with linear rail guiding system and screw drive
LM3.2 with linear rail guiding system and toothed belt drive
M1:2
M1:2
LINE TECH | 32
St / Inox St / Inox St / Inox
NS5 St M5
LINE TECH Linear Modules Profile cross-sections LM4/LM5
LM4.2 with linear rail guiding system and screw drive
LM4.2 with linear rail guiding system and toothed belt drive
M1:2
M1:2
LM5.2 with linear rail guiding system and screw drive
LM5.2 with linear rail guiding system and toothed belt drive
M1:2
M1:2
33 | LINEâ&#x20AC;&#x2C6;TECH
LINE TECH Linear Modules Calculation guidelines
Concept The determination of service life must be calculated based on the respective documents of the linear guide bar system and the ball screw drives. Also for the drive belts we shall refer to the specific literature. It is the guide bar or guide roller system which normally determines the service life. Therefore the following rules can be applied for a coarse definition.
order to show that a module with an adequate load capacity has been selected. Taking into account the static load factor C0 [N] and the load Fr [N] it results: C0 fS = –––– Fr If fS ≥ 1, the safety margin is sufficient. If fS ≤ 1, contact LINE TECH for further advise.
Remark Dynamic load The nominal service life L10 is being calculated from the dynamic load factor Cdyn [N] and the applied load Fr [N]:
( )
Cdyn 3 L10 = –––– [105 m run] Fr
Static load
The above formulas are applicable only in case all bearings are equally loaded, i.e. the load Fr F is applied at the center of the cradle. Especially in vertical arrangements of the linear modules, the drive (screw or belt) must be checked. LINE TECH disposes of different test programs. If you provide us all the necessary information, we’ll be pleased to assist you.
Definition of the drive motor The drive motor forms the link between the control signal and the movement to be applied to a given load. Size and type of the drive motor primarily depend on the load, the required displacement speed and the acceleration factor. Calculation and choice of a positioning unit shall be based on the worst case service conditions. For the optimal drive unit configuration, LINE TECH offers you different types of step-motors, DC and AC motors together with the appropriate continuous- or linear path control. To allow you the determination of the adequate drive motor for any specific application, always use the formulas and examples shown hereafter.
in case of only static load to be applied, the static index fS is being calculated in
Key to the formulas at page 43: d [mm] d1 [mm] d2 [mm] d3 [mm] FL [N] i [–] J [kgm2] J1 [kgm2] J2 [kgm2] JM [kgm2] JR [kgm2] JT [kgm2] l [mm] MB [Nm] Md [Nm] Meff [Nm]
= = = = = = = = = = = = = = = =
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screw diameter diameter driving wheel diameter driven gear diameter pinion or belt pulley feed power gear reduction mass moment of inertia mass moment of inertia driving wheel mass moment of inertia driven gear mass moment of inertia drive motor rotatory mass moment of inertia translatory mass moment of inertia screw length acceleration torque resp. breaking moment motor – continuous torque (see motor spec.) motor – effective output torque
ML [Nm] MM [Nm] Mmax [Nm] mT [kg] nk [min-1] nM [min-1] p [mm] PA [W] sB [mm] tB [s] tL [s] t0 [s] v [m/s] η [–]
= = = = = = = = = = = = = =
load moment motor torque (see motor spec.) motor torque peak external load ( linear moving mass) critical speed for screw drive motor speed screw pitch power output acceleration / brake path acceleration / braking period running time under load moment stop period unloaded rate of feed mechanical efficiency on motor shaft
LINE TECH Linear Modules Calculation guidelines
v
mT FL
mT
J2 i=
v
FL
d3
d1
p (screw pitch)
d2
J2
JM
MM nM
JM
d1 i= d2
Drive motor
Drive motor J1 MM, nM
J1
Motor speed
[min-1]
v · 6 · 104 nM = p·i
Critical speed
[min-1]
nK
= 120 · 106 ·
Load moment
[Nm]
ML
= p · i
v · 6 · 104 nM = π · d3 · i d l2
FL 2 000 · π 2
p
ML = d3 · i
FL 2 000 d3
2
Translatory mass moment 2] [kgm of inertia
JT = mT
Rotatory mass moment 2] [kgm of inertia (for steel)
JR
= 7,7 · d4 · l · 10-13
Total of reduced mass moments 2] [kgm mass moments of inertia
J
= JM + J1 + i2 (JR + JT + J2)
Acceleration or [Nm] Braking moment MB = f (nM)
n ·J MB = M 9.55 · tB
Acceleration or [Nm] Braking moment MB = f (sB)
MB =
Acceleration or [s] Braking moment tB = f (nM)
n ·J tB = M 9.55 · MB
Acceleration or [s] Braking moment *tB = f (sB)
tB =
Speed reached -1] [min after acceleration
120 · sB nM = p · i · tB
120 · sB nM = d3 · π · i · tB
Distance travelled [mm] during acceleration
n ·t ·p·i sB = M B 120
n ·t ·d ·π·i sB = M B 3 120
Sum of torques to be [Nm] overcome by the motor
1 MM = h
Power output
[W]
Effective value of [Nm] motor output torque
2·π
· 10-6
4 · π · sB · J 2
p · i · tB
4 · π · sB · J p · i · MB
JT = mT
2
· 10-6
(at gear reduction 1:2 => i = 0.5)
MB =
4 · sB · J d3 · i · tB2
tB =
4 · sB · J d3 · i · MB
(ML + MB)
M ·n PA = M M 9.55 Meff =
∑ tB (MM/Md)2 + ∑ tL (ML/Md)2 ∑ tB + ∑ tL + t0
· Md
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LINE TECH AG Europastrasse 19 CH-8152 Glattbrugg Phone +41 43 211 68 68 Fax +41 43 211 68 69 info@linetech.ch www.linetech.ch
LINE TECH controls and drives are specifically designed for single-axle and multi-axle positioning units. The wide range of products includes continuousand linear path control systems as well as step motors, DC and AC servo motors and thus meeting any requirement of control systems.
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Due to their superior design characteristics LINE TECH positioning units and LINE TECH linear modules – linear carriages of modular design – are ideally suited to applications with high precision and performance requirements. Various sizes and a multitude of drives allow for application specific problem solving.
© LINE TECH AG · 08-2013 · e · Subject to design changes
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