VB400 Manual

VB400 Manual

VB400 MK3

Optical Projector OPERATORS MANUAL

Copyright
2011 Starrett Precision Optical Ltd

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:

[email protected] www.starrett-percision.co.uk

Web:

Contents

Page Safety .......................................................................................................... 4 1 Introduction ................................................................................................ 4 2 Unpacking................................................................................................... 5 3 Installation .................................................................................................. 6 3.1 Selecting Location ................................................................................................................ 6 3.2 Power Supply......................................................................................................................... 6 3.3 Moving the Projector into Position ......................................................................................... 6 3.4 Removing Transit Straps and Screws ................................................................................... 6 3.5 Fitting the DRO...................................................................................................................... 7 3.6 Mains Connection .................................................................................................................. 7 3.7 Commissioning Checks ......................................................................................................... 8 4 Description of Equipment ......................................................................... 9 5 Operation .................................................................................................. 11 5.1 Controls ............................................................................................................................... 11 5.2 Taking Measurements ......................................................................................................... 12 5.3 Using the Digital Protractor.................................................................................................. 13 6 Maintenance ............................................................................................ 14 6.1 Access to Components........................................................................................................ 14 6.2 Cleaning Lenses .................................................................................................................. 14 6.3 Cleaning the Mirror .............................................................................................................. 14 6.4 Cleaning the Screen ............................................................................................................ 15 6.5 Changing the Projection Lens.............................................................................................. 15 6.6 Renewing the Profile Illumination LED ................................................................................ 15 6.7 Renewing the Surface Illumination LED .............................................................................. 16 6.8 Lubrication ........................................................................................................................... 16 6.9 Latch Block Adjustment ....................................................................................................... 16 6.10 Calibration............................................................................................................................ 17 7 Specification............................................................................................. 18 8 Spare Parts ............................................................................................... 19 8.1 How to Order Spares ........................................................................................................... 19 8.2 Mechanical Parts ................................................................................................................ 19 8.3 Electrical Parts .................................................................................................................... 20 9 Wiring Diagram ........................................................................................ 21

EC DECLARATION OF CONFORMITY FOR MACHINERY................................. 22

Safety

Mains Voltage Mains voltage is present inside the screen housing and a 110V supply inside the profile main body. 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 VB400 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. 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 work holding 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 below). The projector should be mounted on a bench, or on the optional stand supplied, so that the controls will be easily accessible. Note: The bench must be firm, flat and level. The projector mounting feet are factory set on a flat, level surface, and adjustment is not recommended. 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 bench must be firm, flat and level. The projector mounting feet are factory set on a flat, level surface, and adjustment is not recommended. 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 (Figure 2) Pull out the lifting bars from the base and lift the projector using suitable equipment. The weight of the unit is approximately 145kg. CAUTION: Do not attempt to lift the unit by the screen housing.

1

Fig. 2

3.4 Removing Transit Straps and Screws 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 as shown, and tighten screw B. This is for both X & Y axis table movements 2. Refit and tighten screw A.

3.5 Fitting the DRO (Figure 3)

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 B ( Fig 4 ).

Fig 3 Fig 4 3. Pull the cables individually through the slot in the bracket and fit the three labelled D- way connectors and the mains connector into the corresponding sockets at the back of the DRO.

Fig 5

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.

3.6 Mains Connection

WARNING: A secure earth connection must be provided.

The cable colour code is as follows: Brown : Live Blue : Neutral Green/Yellow : Earth

The mains voltage is factory set to the correct value for the local supply. Please check that local supply is the same as voltage label on rear of Projector (Fig 7).

Fig 7

3.7 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 secure and level on its bench or stand. 2. Fit a work piece securely to the workstage. 3. Switch on the power supply. 4. If a digital protractor is fitted, check that the displays and indicators light up for approximately one second. 5. Check that the DRO screen shows a display. 6. 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. 7. Switch on the surface illumination and check that light turns on. NOTE – Do not look directly at the Surface Illumination light source. 8. Release the latch block on the X-axis slide, check that the slide moves freely, and apply the latch. 9. Turn the X-axis and Y-axis hand wheels and check that the workstage moves freely.

Description of Equipment The Starrett VB400 Optical Projector is designed for 2-dimensional optical measurement of profiles and surface features of parts.

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1

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7

3 4 5

6

The projector comprises the following main items: 1. Screen Housing

The Screen Housing contains the projection lens and mirrors. 2. QC DRO

The QC DRO 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. 3. Projection Lens Projects the image on to the screen via the mirror in the screen housing. A range of lenses is available; for details see Section 7 - Specification. For changing lenses see Section 6 - Maintenance. 4. Projector Body Contains the transformer, Surface Illumination Assembly, Surface illumination Power Supply Unit and Profile Power Supply Unit. Access is through maintenance hatch located at the rear. 5. Workstage Movable in the X and Y axes for measurement, and in the Z axis for focus, with a single dovetail slot for fitting work holders with angular clamping screws. 6 Projector Base

Houses the knee assembly and the Profile Illumination Assembly

7 Surface Illumination Light LED Lighting is use via a lens reflecting mirror from the surface illumination. LED’s have a long life time up to 60,000 hours as well as low power consumption. Directed through precision optics and mirrors to the surface of parts, providing cleaner, sharper light and outstanding imagery of the surface

Fig 9

X50 & X100 REFLECTING MIRROR

Fig 8

Surface Illumination

5 Operation

5.1

Controls

1

3 2

Fig 10

Switch Panel

4

5

Fig 11

1 Screen

Glass screen, with overlay clips.

2 Angular Adjustment Hand wheel

For rotating the screen, for angular measurement.

3 QC DRO

For details, 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.

5

Latch Block

Quick-release control for moving the workstage along the X-axis and Y-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).

Fig 12

Fig 13

8

7

7

Fig 14

6

6 Focus Hand wheel.

Moves the workstage along the Z-axis for focusing.

7 X & Y Axis Handwheel

For fine adjustment of the workstage along the X & Y-axis.

8 LED Surface Illumination.

Provide surface illumination for measuring surface features of flat components. For the optimum illumination, switch on surface illumination on front facia and adjust surface variable dial until best definition is observed. 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.

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 control 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. Refer to 5.3 - Using the Digital Protractor for using the protractor. Use the manual controls as required: Linear measurements X- and Y-axis hand wheels. Angular measurement Angular adjustment control and digital protractor Surface features : Surface illumination.

5.3Using the Digital Protractor

Calibration

QC220 Q Axis Set-up (Optional 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 pointer. Scroll down to “Scale Counts” set to zero with reset button. Press Cal button Rotate Screen 360° Press “Teach” Complete by pressing “Finish” twice.

Incremental and Absolute Measurements

Pressing the INC ABS button will cause the display to change between indicating the incremental and absolute count. The absolute count is indicated by illumination of the ABS indicator to the right of the INC ABS button.

Zeroing the Display

Pressing Z key will zero the absolute or incremental display, depending on which type of display is selected, leaving the other display unaffected.

For example with ABS selected, pressing Z Key will zero the absolute display. The incremental display can be recalled by selecting INC. To zero the incremental display, select INC and press RESET again.

6 Maintenance

6.1 Access to Components (Fig 15) WARNING

Mains voltage is present inside the screen housing and a 110V supply inside the profile lamp cover supplying the cooling fan. Access must be restricted to authorised and qualified personnel. Switch off and disconnect the mains supply before gaining access to the internal equipment. The access panel located at the rear of the support column(1) gives access to the Surface illumination(2), the transformer, Surface and Profile Illumination Power Packs and Metlogix M2 Interface Box if fitted.

Fig 15

2

1

Surface & Profile Power Packs

16.2 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 work piece), 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 place fingers on 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, then polish the surface with clean dry surgical quality cotton wool. CAUTION - Do not use force. 6.4 Cleaning the Screen CAUTION To avoid damaging screen markings, do not use excessive pressure when cleaning 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, notepads, photocopier glass etc. )using a clean, soft cloth. The screen should dry free from smears.

6.5 Changing the Projection Lens (Figure 15) CAUTION - Do not touch the surfaces of the lens.

Figure 15

The lens is secured by a bayonet fitting. Rotate the lens anti-clockwise and withdraw it. Fit the replacement lens, rotate it clockwise until it is secure, and check that the two red spots are aligned.

6.6 Renewing the Profile Illumination

Profile illumination uses long life LED lighting. In the event of the LED lighting failing, please contact Projector Dealer or SPO Technical Department LEDs are one of the most reliable light sources in the world today. The LED’s used LEDs have passed a rigorous suite of environmental and mechanical stress tests, including mechanical shock, vibration, temperature cycling

and humidity, and have been fully qualified for use in extreme high power and high current applications. With very low failure rates and median lifetimes that are well above 60,000 hours. LEDs help reduce power consumption and the amount of hazardous waste entering the environment. All LED’s are RoHS compliant and free of hazardous materials, including lead and mercury.

6.7 Renewing the Surface Illumination. Surface illumination uses long life LED lighting. In the event of the LED lighting failing, please contact Projector Dealer or SPO Technical Department

6.8 Lubrication Periodically lubricate the slides with light oil.

6.9 Latch Block Adjustment (Figure 6.9) 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 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.

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Fig 6.9 Latch Block

6.10 Calibration

Have the machine calibrated yearly for optical size and mechanical deviations. (Contact Starrett Precision Optical or an authorised distributor for details of this service).

7 Specification

Overall dimensions Width

870mm (34.25in) (including DRO)

Height

1250mm (49.2in)

Depth

960mm (32.6in)

Weight

145kg (319lb)

Workstage

Construction

Single dovetail Aluminium hard anodised top plate

Top Plate Size 450 x 120mm (17.7 x 4.7in) Horizontal Travel (X-axis ) 200mm (8in) Horizontal Travel (Y-axis) 100mm (4in) Focus travel

(Z-axis) 101.6mm (4in) max.

Max Load Capacity

10 kg

Projection Lenses Mount

Single Lens (bayonet fitting)

Options

x10, x20, x25, x31.25, x50, x100

Lens

Working Distance

Maximum Diameter - Full and Half field of View Full Field Diameter Half Field Diameter

x10 x20 x25

78mm 76mm 70mm 55mm 50mm 41mm

180mm 210mm 185mm 115mm 115mm 90mm

210mm 210mm 210mm 140mm 140mm 105mm

x31.25

x50

x100

Electrical

Voltage Input

110, 120, 230, 240, 250V AC 50/ 60 Hz

Input

Standard power socket

Light Sources Profile illumination

LED SST-90 Series, Over 100 lumens per watt at 3.15A

Surface illumination

LED SST-90 Series, Over 100 lumens per watt at 3.15A

8 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:

+44 (0) 1835 863501

Fax:

+44 (0) 1835 866300

e-mail:

[email protected]

Please quote part numbers when ordering spares .

8.2 Mechanical Parts Description

Part No

Type STD STD STD

Digital Screen (glass only)

4A06

Linear Transducer Scale (X-axis) 270mm Linear Transducer Scale (Y-axis) 120mm

VPP270 VPP120 10E006 10E007 10E008 10E009 10E011 10E012 10D03 10D04 19N02 0DS11

X10 Lens Assembly x20 Lens Assembly x25 Lens Assembly x31¼ Lens Assembly x50 Lens Assembly x100 Lens Assembly

Optional Optional Optional Optional Optional Optional

Mirror Mirror

STD

Readout Mounting Screws ¼ UNC x •

STD STD

Overlay Clips (4)

8.3 Electrical Parts

Refer to Section 9 - Wiring Diagram

Ref

Description

Part No

Type

Power/Neon Switch

S1 S3

5H17 5H07 8E02 7E01 7E04 QA09 9J03

STD STD STD STD STD STD STD

Profile High/Low Switch Surface Illumination Switch Transformer 115/240V Power Entry socket

S12

T1

RFI Filter Fuse 6.3A

FILTER

FS4

9 Wiring Diagram

Starrett Precision Optical Ltd A Division of the L.S.Starrett Company

Oxnam Road - Jedburgh - Roxburghshire TD8 6LR - Scotland Telephone: +44 (0) 1835 798932 Fax: +44 (0) 1835 866300

EC DECLARATION OF CONFORMITY FOR MACHINERY

Manufacturer:

Starrett Precision Optical Ltd A Division of the L.S. Starrett Company Oxnam Road Jedburgh Roxburghshire

TD8 6LR Scotland

Make: Type:

Starrett

……………………………….. ………………………………..

Serial No.

Relevant Directives Complied with:

Machinery Directive 89/392 EEC The EMC Directive 89/336 EEC EN50081/1 Emissions EN50082/1 Immunity Low Voltage Directive 73/23 EEC

This Equipment Conforms with:

The EHSR’s Supply of Machinery (Safety) Regulations 1992 (S.I. 1992.39/3) Low Voltage Electrical Equipment Safety Regulations 1989

Signature on Behalf of Starrett Precision Optical Ltd:

…………………………………… Mr M. Childs, Technical Support manage