Renishaw MRS User manual

MRS installation and user's guide
Documentation part number H-1000-5088-06-D
MRS installation and user's guide
www.renishaw.com
Issued 12 2021
1

General information
© 2001 ‐ 2021 Renishaw plc. All rights reserved.
ORIGINAL LANGUAGE VERSION
This document may not be copied or reproduced in whole or in part, or transferred to any other media or language by any means, without the
prior written permission of Renishaw.
Disclaimer
WHILE CONSIDERABLE EFFORT WAS MADE TO VERIFY THE ACCURACY OF THIS DOCUMENT AT PUBLICATION, ALL WARRANTIES,
CONDITIONS, REPRESENTATIONS AND LIABILITY, HOWSOEVER ARISING, ARE EXCLUDED TO THE EXTENT PERMITTED BY LAW.
RENISHAW RESERVES THE RIGHT TO MAKE CHANGES TO THIS DOCUMENT AND TO THE EQUIPMENT, AND/OR SOFTWARE AND THE
SPECIFICATION DESCRIBED HEREIN WITHOUT OBLIGATION TO PROVIDE NOTICE OF SUCH CHANGES.
Trade marks
RENISHAW®, the probe symbol and REVO®are registered trade marks of Renishaw plc.
Renishaw product names, designations and the mark ‘apply innovation' are trade marks of Renishaw plc or its subsidiaries.
Other brand, product or company names are trade marks of their respective owners.
WEEE
The use of this symbol on Renishaw products and / or accompanying documentation indicates that the product should not be mixed with
general household waste upon disposal. It is the responsibility of the end user to dispose of this product at a designated collection point for
waste electrical and electronic equipment (WEEE) to enable reuse or recycling. Correct disposal of this product will help to save valuable
resources and prevent potential negative effects on the environment. For more information, please contact your local waste disposal service
or Renishaw distributor.
Warranty
Unless you and Renishaw have agreed and signed a separate written agreement, the equipment and/or software are sold subject to the
Renishaw Standard Terms and Conditions supplied with such equipment and/or software, or available on request from your local Renishaw
office.
Renishaw warrants its equipment and software for a limited period (as set out in the Standard Terms and Conditions), provided that they are
installed and used exactly as defined in associated Renishaw documentation. You should consult these Standard Terms and Conditions to find
out the full details of your warranty.
Equipment and/or software purchased by you from a third-party supplier is subject to separate terms and conditions supplied with such
equipment and/or software. You should contact your third-party supplier for details.
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Care of equipment
Renishaw probes and associated systems are precision tools used for obtaining precise measurements and must therefore be treated with
care.
Changes to Renishaw products
Renishaw reserves the right to improve, change or modify its hardware or software without incurring any obligations to make changes to
Renishaw equipment previously sold.
Company registration details
Renishaw plc. Registered in England and Wales. Company no: 1106260. Registered office: New Mills, Wotton-under-Edge, Gloucestershire,
GL12 8JR, UK.
Packaging
To aid end user recycling and disposal the materials used in the different components of the packaging are stated here:
Packaging component Material 94/62/EC code 94/62/EC number
Outer box Corrugated fibreboard PAP 20
Packaging insert Paper PAP 22
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Product compliance
EU declaration of conformity
Contact Renishaw plc or visit www.renishaw.com/EUCMM for the full EU declaration.
UK declaration of conformity
Contact Renishaw plc or visit www.renishaw.com/UKCMM for the full UK declaration.
REACH regulation
Information required by Article 33﴾1﴿ of Regulation ﴾EC﴿ No. 1907/2006 ﴾“REACH”﴿ relating to products containing substances of very high
concern (SVHCs) is available at:
www.renishaw.com/REACH
China RoHS
Contact Renishaw plc or visit www.renishaw.com/ChinaRoHSCMM for the full China RoHS tabulation.
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References and associated documents
For instructions on fitting, datuming and operation of the ACR3, FCR25, SCP80, SCR600, RCP rack and port assemblies, please refer to the
following documents:
Title Document number Relevant topics
Installation and user's guide: ACR3 H-1000-5087 ACR3 autochange rack
Installation and user's guide: SP25M system H-1000-5104 FCR25 and FCR25 TC
Installation and integration guide: SP80 H-1000-5212 SCP80 stylus change port
User's guide: SP80 H-1000-5213 SCP80 stylus change port
Installation leaflet: SCP600 H-1000-5097 SCP600 stylus change port
User's guide: REVO H-1000-5129 RCP, RCP TC-2, SFCP, SFA, TDA and REVO
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System description
The MRS is designed to provide a flexible platform for Renishaw probe and stylus changing racks.
The system comprises of an extruded aluminium rail mounted to the CMM table by two leg assemblies. It is available in rail lengths of 400
mm (15.75 in), 600 mm (23.62 in), 900 mm (35.43 in) and 1000 mm (39.37 in) to suit a variety of port and rack changing requirements.
Custom rail lengths are also available.
The MRS can be placed at different heights from the CMM table by using multiples of the MRS standard and heavy duty legs, thus allowing
clearance for long styli and extension bars.
The interconnecting MRS legs supplied (four per kit) are each 125 mm (4.92 in) long. A maximum recommended leg length of 500 mm (19.69
in) can be achieved by purchasing additional legs. These are available in either 62.5 mm (2.46 in) or 125 mm (4.92 in) lengths. The combined
MRS rack and leg assembly is mounted on the CMM table via two MRS feet (see item 7 in illustration below). These extend the overall height
by 35 mm allowing a maximum clearance of 535 mm between the CMM table and the underside of the MRS rail.
Modular rack system compatibility
The MRS is compatible with the following Renishaw port and change rack systems:
ACR3 (autochange rack)
FCR25 (flexible change rack)
FRC25 TC (thermally controlled flexible change rack)
SCP80 (stylus change port for SP80)
SCP600 (stylus change port for SP600, SP600M and SP600Q)
RCP TC-2 (thermally controlled REVO change port)
RCP2 (change port for RSH stylus holders)
SFA and SFCP (for REVO surface finish probe)
TDA (REVO tip datum artefact)
Key
1. MRS rail
2. Port or rack
3. Fixing screw
4. MRS leg
5. Leg to foot adaptor
6. Grubscrews
7. MRS foot
8. Step-back adaptor
9. M8 screw
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MRS heavy duty legs
Where heavier rack systems or longer styli configurations are used, such as multiple SCP80s or RCP TC-2s, the MRS system can be upgraded
by using optional heavy-duty legs that are 60 mm (2.36 in) in diameter and 350 mm (13.78 in) long. These legs are mounted to the CMM
table beneath the standard legs and feet.
Key
1. Heavy-duty leg
2. Leg to foot adaptor and washer
3. Footplate
4. Standard MRS leg
5. Leg to foot adaptor
6. M8 or M10 screw and washer
7. Standard MRS foot
NOTE: The MRS heavy-duty leg kit part number is A-4192-0020 and comprises one heavy-duty leg assembly. Two kits are
required for each MRS installation.
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MRS adjustable footplates
By using optional MRS adjustable footplates, the MRS rail can be set back on the CMM table to maximise the available working volume of the
machine. The MRS adjustable footplates can be used with both standard and heavy-duty leg arrangements. Adjustment is set by the footplate
bolt hole spacing in increments of 25 mm, 50 mm, 75 mm, 100 mm (0.98 in, 1.97 in, 2.95 in, 3.94 in).
NOTE: The MRS adjustable footplate kit part number is A-4192-0702 and comprises two footplates. One kit is required for each
MRS installation.
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Step back adaptor
Step back adaptors can be used to set the MRS rail back on the CMM bed to maximise the available working volume of the machine.
A step back spacer is available to allow the RCP TC-2 to fit in front of the MRS leg.
Key
1. Standard MRS leg
2. MRS rail
3. Step back adaptor
4. T-nut and screw
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Fitting the MRS feet
Fitting the MRS feet to the CMM
The MRS feet should be fitted to the CMM table along either the X or Y axis. The following procedure details the installation.
1. Place the MRS foot (item 3 in illustration below) on the CMM table and position it over the chosen mounting hole. The feet do not require
any rotational alignment.
2. Two pairs of screws are supplied with the MRS*, one pair of M10 and one pair of M8 (item 1) with washers (item 2). The appropriate screw
size should be used to secure the MRS foot to the CMM table.
3. Tighten the bolt using the hexagonal key supplied.
4. Fit the second foot at the appropriate distance along the chosen axis following steps 1 to 3 above.
* If the bolts supplied do not fit the CMM table then suitable alternatives should be found.
Key
1. Screw
2. Washer (optional)
3. MRS foot
Aligning the MRS feet to a CMM axis
To ease installation of the rail to the MRS it is recommended that the MRS feet be aligned to a CMM axis. The procedure is as follows:
1. Measure the internal diameter of one of the MRS feet and make this a datum.
2. Measure the internal diameter of the other MRS foot.
3. Calculate the out-of-position angle of the MRS feet using the following formula:
If the angle exceeds 0.5° then adjustment is necessary. Changing the relative foot position is achieved by releasing the bolt that holds the foot
to the CMM table, moving the foot and then re-tightening the bolt. Steps 1 to 3 above should then be repeated.
MRS installation and user's guide
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Fitting standard legs to the MRS
Two options are available for mounting the legs to the rail of the MRS. The direct fitting option allows legs to be attached onto the underside
of the rail. Using the step-back adaptor option allows legs to be fitted to the back of the rail and provides more measuring volume.
Recommended procedures for these two options are detailed in this section.
WARNING: The MRS rail is shipped without the plastic end-caps fitted. Therefore there is a possibility that sharp edges could be
exposed.
Direct fitting of legs to the MRS rack
The method for directly fitting legs to the MRS rack is as follows:
1. Referring to the illustration below, slide the T-nuts (item 1) into the T-nut slot in the underside of the MRS rail (item 2), one T-nut is required
for each leg. Ensure that the longer portion of the T-nut is facing away from the end of the rail. The appropriate number of T-nuts should be
placed into the slot for the change port or rack device to be used.
2. Once all the T-nuts have been installed in the correct orientation, the plastic end caps (item 3) can be pressed into the rail.
3. Referring to the image below, connect the required number of legs and / or leg extensions (item 1) (up to a maximum of four per leg
assembly) and hand-tighten. The MRS leg-to-foot adaptors (item 2) can now be screwed into the bottom of each leg and hand-tightened.
4. Place the MRS legs into the MRS feet (item 3) on the CMM table and adjust the three grubscrews (item 4) so that the legs locate in the MRS
feet but are still able to rotate.
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CAUTION: The MRS rack is top heavy. Whilst performing steps 5 and 6, the rail of the MRS must be supported.
5. Referring to the image below, screw the MRS legs (item 3) into the T-nuts (item 1) at each end of the MRS rack (item 2) and hand-tighten.
6. When the MRS rack is firmly located on the MRS legs, tighten the three grubscrews on each MRS foot using the hexagonal key provided.
Fitting MRS legs with step-back adaptors
The following method describes the attachment of MRS legs with step-back adaptors to the MRS rack:
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1. Referring to the image below, insert the asymmetrical T-nut (item 3) for the step-back attachment into the rear T-nut slot of the MRS rail
(item 2). Ensure that the longer portion of the T-nut is facing away from the end of the rail.
2. The relevant port or rack mounting T-nuts (item 1) should be installed in the T-nut slot in the underside of the rail. The longer portion of the
T-nut should face towards the centre of each respective port.
3. Once all the T-nuts have been installed in the correct orientation, the plastic end caps (item 4) can be pressed into the ends of the MRS.
4. Referring to the image in below, insert the M8 screw (item 1) into the step-back adaptor (item 2). Screw the MRS leg (item 3) into the step-
back adaptor and hand-tighten. Then screw the required number of leg extensions (up to a maximum of four per leg assembly) into the MRS
leg and hand-tighten.
5. Referring to the image below, once the required number of legs or leg extensions have been attached, the MRS leg-to-foot adaptors (item
2) can be screwed into the bottom of each MRS leg assembly (item 1) and hand-tightened.
6. Place the MRS legs into the MRS feet (item 3) on the CMM table. Loosely adjust the three grubscrews (item 4) on each MRS foot so that the
legs locate in the MRS feet but are free to rotate.
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7. If no step back spacer that is required for the RCP and RCP TC-2, position the MRS (item 1) to the step-back adaptor (item 2) and orientate
the step-back adaptor so that the M8 screw (item 3) is properly aligned to the MRS T-nut. Screw the step-back adaptor to the MRS using the
M8 screw (item 3).
8. If the step back spacer is required, fit the step back spacer onto the step back adaptor (item 2) as shown in the image below. Position the
MRS rail (item 1) to the step back spacer (item 4) and orientate the step back spacer and adaptor assembly so that the M8 screw (item 3) is
properly aligned to the MRS T-nut (item 5). Screw the step back assembly to the MRS using the M8 screw (item 3)
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9. Repeat the relevent previous steps for the second MRS leg, hand-tightening the M8 screw on each step-back adaptor.
10. Adjust the position of the rail as required by slackening the M8 screw in the step-back adaptor and sliding the rail into position. Re-tighten
the M8 screws using the hexagonal key supplied.
NOTE: Ensure the three grubscrews on each MRS foot are tightened using the hexagonal key provided.
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Fitting heavy-duty legs to the MRS
Where an MRS installation has numerous SCP80s containing heavy stylus arrangements, or vertical stylus arrangements exceeding 190 mm,
it is recommended that the optional MRS heavy duty leg kits are used to provide additional rigidity / height. These kits can be purchased
separately to match the number of legs used on the MRS.
NOTE: The MRS heavy‐duty leg kit part number is A‐4192‐0020 and comprises 1 × heavy duty leg ﴾Ø60 × 350 mm long, 1 ×
footplate and a selection of double-ended threaded studs).
Key
1. Heavy-duty leg
2. Leg to foot adaptor and washer
3. Footplate
4. Standard MRS leg
5. Leg to foot adaptor
6. M8 or M10 screw or washer
7. MRS foot
8. MRS rail
9. Step back adaptor
10. T-nut and screw
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Installation procedure
NOTE: The MRS heavy-duty leg kit must be used in conjunction with the standard MRS leg assembly. The legs should be mounted
using the step back adaptor method.
1. Locate the first footplate (item 3) with a suitable threaded stud on the CMM table having consideration for the required position of the MRS
rail that will accommodate all loaded racks within the working volume. Fasten the footplate to the table using the double-ended threaded
stud* (item 2).
2. Locate the second footplate (item 3) at the appropriate distance along the chosen CMM axis and follow step 2 above.
3. Screw the heavy duty leg (item 1) to the top of the threaded stud (item 2) and hand-tighten. Repeat for second leg assembly.
4. Place the first MRS foot (item 7) (part of the standard MRS leg assembly) on top of the heavy duty leg (item 1) and secure using the M10
screw (item 6). Repeat for the second leg assembly.
5. Proceed with the remaining construction of the MRS system as described in the pages detailed:
• Aligning the MRS feet to the CMM axis.
• Fixing the standard MRS legs to the rail using step back adaptors.
• Fixing the standard MRS legs to the MRS foot.
* Two sets of double ended threaded studs are provided to suit different CMM table configurations. The thread sizes supplied are M10, M8
and M6. Alternatively, 3/16 " UNC and 5/16 " UNC can be obtained on request from your Renishaw supplier.
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Fitting MRS adaptor feet
By using the optional MRS adjustable footplates shown below, the MRS rail can also be placed at different positions on the CMM's bed which
ensures that a maximised working volume can be achieved. The MRS adjustable footplates can be used with the MRS standard leg and the
MRS heavy duty leg arrangements.
NOTE: The MRS adjustable footplates kit part number is A-4192-0702 and comprises two footplates.
Fitting standard legs to the adjustable footplate
Key
1. Standard MRS leg
2. M8 or M10 screws
3. Washer
4. Grubscrews
5. MRS foot
6. MRS adjustable footplate
1. Fit the MRS adjustable footplate to the CMM bed.
2. Locate the first footplate with a suitable screw onto the adjustable footplate.
3. Follow steps 3 - 6 of the installation procedure for fitting heavy duty legs.
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Fitting heavy duty legs to the adjustable footplate
Key
1. MRS heavy duty leg
2. Leg to foot adaptor
3. Washer
4. Footplate
5. M8 or M10 screw
6. MRS adjustable footplate
1. Fit the MRS adjustable footplate to the CMM bed.
2. Follow the steps on fitting the MRS feet and instead of fitting the feet to the CMM bed fit them to the adjustable footplate.
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Specification summary
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