VF600MK3 Optical Projector OPERATORS MANUAL Copyright © 2011 Starrett Precision Optical Ltd
VF600MK3 OPERATORS MANUAL
Copyright This manual is the copyright of Starrett Precision Optical Ltd and is protected by national and international copyright law.
Starrett Precision Optical Ltd A Division of the L.S. Starrett Company Oxnam Road Jedburgh Roxburghshire TD8 6LR Scotland Telephone:
+44 (0) 1835 863501
Fax:
+44 (0) 1835 866300
E-mail:
aftersales@starrett-precision.co.uk
Web:
www.starrett-precision.co.uk
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VF600MK3 OPERATORS MANUAL
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Contents
Page
Safety......................................................................................................................................................... 4 1
Introduction............................................................................................................................................... 4
2
Unpacking.................................................................................................................................................. 4
3
Installation................................................................................................................................................. 4
3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8
Selecting Location Power Supply Moving the Projector into Position Removing Transit Straps and Screws Fitting the DRO Mains Connection Fitting the Canopy Commissioning Checks
4
Description of Equipment.......................................................................................................................... 7
5
Operation................................................................................................................................................... 8
5.1 5.2 5.3
Controls Taking Measurements Using the Digital Protractor and calibration
6
Maintenance ............................................................................................................................................ 11
6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9
Access to Components Cleaning Lenses Cleaning the Mirror Removing and Cleaning the Screen Renewing the Profile Illumination Lamp Renewing the Surface Illumination Lamp Lubrication Latch Block Adjustment Calibration
7
Specification............................................................................................................................................. 15
8
Spare Parts............................................................................................................................................... 16
8.1 8.2 8.3
How to Order Spares Mechanical Parts Electrical Parts
9
Wiring Diagram........................................................................................................................................ 17
4 5 5 5 5 6 6 6
8 10 10
11 12 12 12 12 13 14 14 14
16 16 16
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Safety Mains Voltage Mains voltage is present inside the screen housing and a 110V supply inside the profile lamp housing. Access must be restricted to authorised and qualified personnel. Switch off and disconnect the mains supply before gaining access to the internal equipment. Before switching on the projector for the first time, check the mains voltage setting as detailed in Section 3 - Installation.
Certification This equipment complies with the Directives and Regulations specified in the EC Declaration of Conformity for Machinery included at the back of this manual.
1 Introduction This manual applies to the Starrett VF600MK3 Optical Projector which is supplied with the following equipment: QC DRO (Quadra Chek Digital Readout). This manual deals with installation of the DRO. For operating the DRO, refer to the QC manual supplied. Digital protractor. Operating instructions for the digital protractor are given in this manual. Edge detector (optional). For use with the DRO; this manual deals with installation of a projector fitted with an edge detector. For operating the edge detector, refer to the QC manual supplied.
2 Unpacking Open the packing case and remove loose items and packing material. Referring to the packing list, identify the following items before discarding the packing material: Optical Projector The projector is usually supported on a wooden base. Glass Plate and screw For the work stage. QC DRO and Manual Mounting Bracket and Screws For fitting DRO. Hotlamps If ordered. Mains Supply Cable Edge Detector (if ordered) The edge detector will be fitted over the projector screen; Section 3 Installation). Additional Lenses if ordered. Accessories (if ordered) For example workholding equipment, and projector stand).
WARNING: Before attempting to move the projector, refer to Section 3 - Installation - 3.3 Moving the Projector into Position.
3 Installation 3.1 Selecting Location The projector is designed for use in a normal workshop environment, but should be sited as far away as possible from sources of grinding grit, oil mist and vibration. Choose a convenient location with a firm, level floor, where the screen will not be subject to glare from sunlight or artificial lighting. Make sure that a suitable mains supply is available, (see 3.2 Power Supply). The projector should be mounted on a bench, or on the optional stand supplied, so that the controls will be easily accessible. Note: The floor must be firm, free from vibrations and level. The projector mounting feet are factory set on a flat, level surface, and an adjustable level foot is located at back left of the projector.
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VF600MK3 OPERATORS MANUAL 3.2
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Power Supply
A mains supply of the correct voltage is required. WARNING: Check the mains voltage setting before connecting the mains supply (see 3.6 - Mains Connection).
3.3 Moving the Projector into Position The projector can be moved using a pallet truck and can be steadied by using the wooden batten fastened to the back panel of the projector. The weight of the unit is approximately 225kg, (495lb). Once in position remove the wooden batten.
3.4 Removing Transit Straps and Screws (Figure 2) The transit straps are red. CAUTION: The transit strap and screw must be removed before any attempt is made to move the workstage or to use the projector. 1. Remove the screw A from the transit strap. Position the strap horizontally and tighten screw B. This is for both X & Y axis table movements. 2.
A A
B B
Refit and tighten screw A. Fig 2
3.5 Fitting the DRO 1.
Fit the bracket to the projector, securing it with the four screws fig 3.
2.
Fit the DRO to the bracket, securing it with the two screws fig 4.
3.
Pull the cables individually through the slot in the bracket fig 5 and fit the three labeled D-way connectors and the mains connector into the corresponding sockets at the back of the DRO fig 6.
Projectors fitted with edge detector: 4.
Fit the reference cable and screen cable connectors to the corresponding sockets at the back of the DRO.
Fig 3
Fig 4
Fig 5
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Fig 6
VF600MK3 OPERATORS MANUAL 3.6
6
Mains Connection (Figure 7)
WARNING: A secure earth connection must be provided. The cable colour code is as follows: Brown/Red : Live Blue
: Neutral
Green/Yellow
: Earth
The mains voltage is factory set to the correct value for the local Fig 7 supply; however it is recommended that the setting is checked before power is applied, as follows: 1. Set the mains voltage at the transformer 110V,220V or 240V to local voltage fig. 7. 2.
Fig 7A
Connect the mains cable to the switch/fused box at the rear of the projector, this box is will accept conduit fittings to wire in permanently. Do not pipe in vertically until the canopy is fitted. fig. 7A.
3.7 Fitting the Canopy The canopy is fastened to the side panel of the packing case. Remove together with the 2 support arms. 1. Make secure the support arms to the back of the projector Fig 7 using hexagon headed bolts supplied, fit the canopy in place on top of the support arms. You will require step ladders to secure the 4 fixing screws (supplied) for the canopy to the support arms. 2.
Fit the curtains supplied making sure the Velcro strips line up at the back edge of projector to fasten them together.
3.8 Commissioning Checks Make the following checks before putting the projector into service, referring to Section 5 - Operation as necessary: 1. Make sure that the projector is level on the floor and is stable. 2.
Fit a workpiece securely to the workstage.
3.
Switch on the power supply.
4.
Check that the DRO screen shows a display.
5.
Switch on the profile illumination, and turn the focus (Z-axis) hand wheel to bring the work piece into focus. Check that the screen image is satisfactory.
6.
Switch on the surface illumination, and check that the two fibre optic light guides are lit, or hot lamps light up if fitted.
7.
Release the latch block on each of the X & Y axis slides, check that the slide moves freely, and apply the latch back onto the drive shaft.
8.
Turn the X-axis and Y-axis handwheels and check that the workstage moves freely. Check the DRO X &Y axis counts respectively.
9.
Turn the Screen drive and check the DRO displays the displacement in the Q axis, also check the screen clamp is functional.
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4 Description of Equipment (Figure 8) The Starrett VF600MK3 Optical Projector is designed for 2-dimensional optical measurement of profiles and surface features of parts. 1 Retractable Light Guide 5 Profile Illumination & Condenser
3
7
6 8
6 Projection Lens
3 Canopy and Curtains
7 DRO
4 Workstage
8 Optical Edge Detector
The projector comprises the following main items: 1 Body and Screen Housing
5 4
2 Screen Hand Wheel
1
2
The housing contains the projection lens (6), mirror, and surface illumination light guides, electrics and vertical focus drive.
2
Canopy and Curtains
Provides a blackout situation for low light situations and to reduce glare from windows and room lighting.
3
QC DRO
The QC DRO (7) enables measurements to be viewed and recorded, and programs to be created for measuring a number or similar parts. For further details, refer to the QC DRO Operators Manual.
4
Projection Condenser Housing
Houses the projection lamp (5), condenser lens, (see Fig 8 Section 5 - Operation - Controls). 5
Workholding Equipment
Workholding accessories are available, including centres and vees, helix centres, and a rotary glass plate workholder for small flat components.
6
Workstage
Movable in the X and Y axes for measurement, and in the Z axis for focus, with a single dovetail slot for fitting workholders with angular clamping screws. The dimensions are as follows (in mm): See fig 9 Fig 9 14-M5 HOLES -50.00MM PITCH
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7
Projection Lens
Projects the image on to the screen via the mirror onto the screen (6). A range of lenses are available; these fit into the lens turret or single mount for details Changing the Projection Lens fig 10.
CAUTION Do not touch the surfaces of the lens.
Fig 10
8
Surface Illumination Light Guides
Optical fibre guides fig 11, which conduct the light from the surface illumination lamp for surface illumination of parts. (See Section 5 - Operation - Controls).
Fig 11
5 Operation 5.1 Controls (Figure 12)
1
Beveled Glass Screen
2
Screen Hand Wheel
3
QC DRO
4
Switch Panel
5
Quick Release
6
Focus Hand |Wheel
7
Fine Adjustment Hand Wheel
5 7
3 4 6
1 2
Fig 12
1 Screen
Bevelled glass screen (1).
2
Screen Hand Wheel
For rotating the screen, for angular measurement (2).
3
QC DRO
For details of the QC DRO (3), see the QC DRO Operators Manual.
4
Switch Panel
Rocker switches for POWER on/off, the SURFACE illumination lamp, and the PROFILE illumination lamp with HIGH/LOW settings (4). Close up Fig 13. Fig 13
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5
Latch Block
Quick-release (5) control for moving the workstage along the X-axis. Lift the lever to release the latch, move the workstage to the required position, and lower the lever. (Use the X & Y axis handwheel for fine adjustment). Close up Fig 14 below.
6
Focus Handwheel
By turning the hand wheel this raises or lowers the work stage for obtaining the best focus position (6).
7
X & Y Axis Handwheel
The work stage hand wheels are for fine adjustment of the work stage X & Y-axis (7). 1. The handle for each of the latch blocks are to release the drive mechanism for rapid movement then press down on the handle re-engages drive for fine positioning.
8
Profile lens selection
To change the magnification this is done by turning the back plastic selector that holds the lenses in the downward position when not in use. It is best to use 2 hands for this, you can then rotate to the desired lens and holding the lens let it spring upwards to the park position you can now rotate the lens and a detent will position the required position. fig 15 see Section 7 - Specification.
Fig 14
9
Profile Illumination condenser setting.
The condenser turret is located on the lamp house and rotates to the desired position by hand and is set to the end stop. matches the lenses used, the large condenser is used for the X10 lens, use the small condenser for the remainder of the lenses X20,X25,X31.25,X50 & X100.see fig16
Fig 15
Fig 16 10
Surface Illumination Light Guides
Provide surface illumination for measuring surface features of flat components. For the optimum illumination, slacken the clamp screws and pull out the guides. Position the guides as close to the component as possible, and tighten the clamp screws fig 17.
For components with a directional surface finish (such as ground faces), the surface texture should be vertical to give the brightest image on the screen.
The guides provide a ‘cold light’ source; minimal heat is radiated to the component.
11
Digital Protractor
Fig 17 Provides digital indication of angular measurements from the image on the screen form one feature to the other.
Absolute and incremental
The readout will display absolute and incremental readings, this is done by using the datum key, you datum on a feature to be measured by aligning the cross line onto the feature, and then zero the readout on the Q axis.
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5.2 Taking Measurements 1.
Secure the component to the workstage with a suitable work holder.
2.
Turn on the POWER switch.
3.
Turn on the PROFILE lamp switch, and turn the focus handwheel to produce a sharp image on the screen.
4.
Refer to the QC manual for setting up the DRO (and edge detector if fitted) and taking measurements.
You can use the machine cross line and align the component to it and then zero DRO and move the component to another feature giving a direct reading or you can use an overlay at the screen or if fitted use geometrics and measure features using cross line at the screen or edge detector.
Refer to 5.3 - Using the Digital Protractor for using the protractor. Use the manual controls as required: Linear measurements Angular measurement Surface features
: X- and Y-axis handwheels. : Angular adjustment, control and digital protractor : Surface illumination and light guides.
5.3 Using the Digital Protractor To make a measurement align the cross line on the screen with the feature on the component, You can now zero at this point by pressing the button at the side of the Q axis digital display line on the DRO. You can alter the display from degrees,min,sec to degrees decimal, through the menu button. Calibration of the Digital Protractor. QC220 Q Axis Set-up Rotary Encoder Switch on readout Press “Menu” key twice Press “Set-up” key Scroll to Supervisor (using arrow keys) Key in “070583” then “Enter” Scroll to “Encoders” Press right arrow key Press “Q” option Set encoder to TTL Set interpolation to X1 Align screen crosshair onto the Zero pointer. Scroll down to “Scale Counts” set too zero with reset button. Press Cal button Rotate Screen 360∞anticlockwise (counter-clockwise) Press “Teach” Complete by pressing “Finish” twice
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6 Maintenance 6.1 Access to Components (Figure 18) WARNING Mains voltage is present inside the screen housing and a 110V supply inside the lamp house. Access must be restricted to authorised and qualified personnel. Switch off and disconnect the mains supply before gaining access to the internal equipment. The lamp house Cover (1) gives access to the fibre optic illumination and profile illumination lamps, the transformer is located through upper side access panel (2), the mirror through is located through lower side access panel (3).
1
Profile & Surface Cover
2
Upper Access Panel (Transformer)
3
Lower Access Panel (Mirror)
1
2
3
Fig 18
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6.2 Cleaning Lenses CAUTION Do not use polishes, or window cleaning aerosols and liquids for cleaning lenses. Do not touch the inner surfaces, (those facing away from the workpiece), of the projection or condenser lens. The projection lens is the most critical; a finger mark on the inner surface will degrade the quality of the projected image. Remove any accumulated dust with a photographic lens brush. Remove any grease or finger marks with a new photographic cleaning tissue, which may be moistened with methanol if necessary.
6.3 Cleaning the Mirror CAUTION The mirror should be cleaned as infrequently as possible. It is recommended that cleaning is performed by service engineers. Do not finger the surface of the mirror. If necessary, remove loose dust with a photographic lens brush. If necessary, remove grease and finger marks with surgical quality cotton wool moistened with methanol. Apply the cotton wool lightly, and then polish the surface with clean dry surgical quality cotton wool. CAUTION Do not use force.
6.4 Removing & Cleaning the Screen CAUTION To avoid damaging the screen markings, do not use excessive pressure when cleaning the screen. Do not use solvents for cleaning the screen; they may remove screen markings. Clean the screen with anti static, alcohol based glass cleaner, (e.g. as used for VDU screens, notebooks, photocopier glass, etc.), using a clean, soft cloth. The screen should dry free from smears. Alternatively clean the screen with household washing up liquid diluted 50% with water, using a clean cloth. Rinse the screen with clean warm water using a clean cloth. The screen should dry free from smears. To remove the screen first we must remove the screen lock, by unscrewing the plastic knob and remove top clamp and be careful not to lose the spring. There are 5 plastic caps in the screen ring cover remove these with a thin edged knife, then unscrew the 5 cap headed screws the ring should be able to be lifted off, this gives access to the screen drive wheel and screen runners and the encoder assembly for the Q axis. To remove the screen slacken off the 2 cap screws that secure the top screen runner wheel assembly also support the screen while doing this, the screen wheel will be able to slide outwards to give clearance to remove the screen see fig 19 photo. Fig 19 Lift the encoder wheel by hand in the direction shown to the top of the clearance hole away from screen edge. The screen can then be removed. To replace the screen do the procedure in reverse order.
6.5 Renewing the Profile Illumination Lamp CAUTION Do not finger the surface of the new lamp; handle it in its protective wrapping as detailed below. Any fingermarks will be fired into the surface of the quartz envelope, reducing the output and life of the lamp. If the envelope is accidentally fingermarked, remove the marks immediately with a cotton wool swab moistened with methanol.
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1.
Turn off the power to the projector.
2.
Unscrew the one screw on the top of the lamp house cover and remove the lamp house cover.
3.
Remove the used lamp fig 21 by holding it carefully between finger and thumb and pulling it gently outwards until the terminal pins are clear of the connector on the bulb holder.
4.
Check you have the correct Lamp, voltage and wattage, remove the new replacement lamp from its box, and with a sharp knife cut approximately 6 mm (1/4 in) from the bottom of the protective wrapping, allowing the terminal pins to protrude.
5.
Holding the lamp by its protective wrapping, insert the terminal pins into the connectors.
6.
Check that the lamp is square and securely located, and dispose the protective wrapping.
7.
Refit the lamp house cover fig 20.
Fig 20
Fig 21
6.6 Renewing the Surface Illumination Lamp 1.
Turn off the power to the projector.
2.
Unscrew the two cap screws and remove the lamp house cover.
3.
Remove the used lamp fig 22 carefully by using the lamp ejector lever to lift the bulb out of the lamp holder, until the terminal pins are clear of the connector on the bulb holder.
4.
Check you have the correct Lamp, voltage and wattage, remove the new replacement lamp from its box, make sure the ejector lever is returned to its park position and press the new bulb firmly into the bulb holder.
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Fig 22
VF600MK3 OPERATORS MANUAL
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6.7 Lubrication Periodically lubricate the slides with light oil.
6.8 Latch Block Adjustment (Figure 25) The tension of the latch block on the X-axis slide latch may require adjustment after a period of use. If necessary, re-set the tension as follows: 1. Withdraw the end cap (the cap is a push fit). 2.
Unscrew and remove the engagement handle.
3.
Insert an Allen key into the socket lock screw, slacken the screw, and hold the internal nut in position with the keywith the key.
4.
Rotate the bearing mount/collet to give the required tension.
5.
Tighten the socket lock screw.
6.
Refit the engagement handle and end cap.
No.
Description
1
Slide Bar
2
End Cap
3
Bearing
4
Bearing Mount Collet
5
Internal Lock Nut
6
Socket Lock Screw
7
Engagement Handle
6.9 Calibration Have the machine calibrated yearly for optical size and mechanical deviations. (Contact Starrett Precision Optical Ltd. or an authorised distributor for details of this service).
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7 Specification Overall dimensions Width Height Depth Weight
960mm (38in) (including DRO) 2070mm (81.5in) 1500mm (59in) 225kg (495lb)
Workstage Construction Top Plate Size Horizontal Travel Horizontal Travel Focus travel Capacity Between Centres Max Load Capacity
Single dovetail Aluminium hard anodised top plate 400 x 225mm (16 x 9in) (X-axis ) 203.2mm (8in)Std 254mm (10in)Extended (Y-axis) 101.6mm (4in)Std 152.4mm (6in)Extended (Z-axis) 101.6mm (4in) max. 254 x 101.6mm (10 x 4in) 10 kg Evenly Distributed
Projection Lenses Mount Options
Single Lens or Three lens turret x10, x20, x25, x31.25, x50, x100 Lens
Working Distance
Maximum Diameter - Full and Half field of View Full Field Diameter
Half Field Diameter
x5
220mm
140mm
140mm
x10
138mm
140mm
140mm
x20
127mm
140mm
140mm
x25
103mm
140mm
140mm
x50
88mm
140mm
140mm
x100
44mm
140mm
98mm
Electrical Voltage Input Tappings on Transformer Input Light Sources Profile illumination Surface illumination
From 110-240V, 50-60 Hz Standard Switch/Fuse box 24V 150W halogen lamp 12V 100W reflector lamp
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16
Spare Parts
8.1 How to Order Spares Contact your local dealer, or contact Starrett Precision Optical by telephone, fax or e-mail: Starrett Precision Optical Ltd, Oxnam Road, Jedburgh, Roxburghshire, TD8 6LR, Scotland Telephone: E-mail:
+44 (0) 1835 863501 aftersales@starrett-precision.co.uk
Fax: +44 (0) 1835 866300 Web site: www.starrett-precision.co.uk
8.2 Mechanical Parts Description
Part No
Type
Surface Illumination Lamp Holder (Fibre Optic)
6G06
STD
Profile Illumination Lamp Holder
LH11s
STD
Digital Screen Glass and clips
6F004
STD
Fibre Optic Clamp Screws
8S10
STD
X10 Lens Assembly Single Mount
6Q002
Optional
X10 Lens Assembly Three Lens Turret
0LN23
Optional
x20 Lens Assembly Single Lens
6Q003
Optional
x20 Lens Assembly Three Lens Turret
0LN24
Optional
x25 Lens Assembly Single Lens
6Q004
Optional
x25 Lens Assembly Three Lens Turret
0LN25
Optional
x50 Lens Assembly Single Lens
6Q005
Optional
x50 Lens Assembly Three Lens Turret
0LN26
Optional
x100 Lens Assembly Single Lens
6Q006
Optional
x100 Lens Assembly Three Lens Turret
0LN27
Optional
Mirror
6K09
STD
Readout Mounting Screws 1/4” UNC x 3/8”
19N02
STD
Overlay Clips (4)
0DS7
STD
8.3 Electrical Parts Refer to Section 9 - Wiring Diagram Description
Ref
Part No
Type
Profile Illumination Lamp 24V 150W
L3
HL19
STD
Surface Illumination Lamp F Optic Lamp 12V 100W
L11
FO07
STD
Power/Neon Switch
S1
5H17
STD
Profile High/Low Switch
S2
5H07
STD
Surface Illumination Switch
S4
7E10
STD
Cooling Fan 80mm
F1, F2
LH08
STD
Transformer 115/240V
T1
6M09
STD
CB15
STD
QA09
STD
Power Entry Box Switch/Fuse RFI Filter
FILTER
Fuse 5A 5 x 20
FS5
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STD
VF600MK3 OPERATORS MANUAL
9 Fig 26
17
Wiring Diagram L
N
S28 FS5
S1
BLK1
BLK2 neon
L/B1
SUPPLY VOLTAGE 110/220 VOLTS 1PH
E 0
+10
110V
BLK18
110
22V
0
115
18V
0
220
22V
BLK22 BLK24 BLK110
L/B110
F1
BLK110
L/B110
FAN
BLK110
ESP
L/B110
BLK110
DRO
L/B110
SHT 3
SHT 3 SURFACE
PROFILE BLK23
BLK24 SHT 2
S4
L/B22 L2
SHT2
SURFACE PROFILE
BLK22
BLK18
BLK21 S2
L/B18 L3
CE WIRING
> SN 70001 OCT98
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240 T1
0