Renishaw ACR3 Installation & User's Guide

ACR3 installation and user's guide

Document part number H-1000-5087-03-B

ACR3 installation and user's guide

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Issued 03 2020

1

General information

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.

The publication of material within this document does not imply freedom from the patent rights of Renishaw plc.

Disclaimer

RENISHAW HAS MADE CONSIDERABLE EFFORTS TO ENSURE THE CONTENT OF THIS DOCUMENT IS CORRECT AT THE DATE OF

PUBLICATION BUT MAKES NO WARRANTIES OR REPRESENTATIONS REGARDING THE CONTENT. RENISHAW EXCLUDES LIABILITY,

HOWSOEVER ARISING, FOR ANY INACCURACIES IN THIS DOCUMENT.

Trademarks

RENISHAW, the probe symbol used in the RENISHAW logo and REVO are registered trademarks of Renishaw plc in the United Kingdom and

other countries. apply innovation and names and designations of other Renishaw products and technologies are trademarks of Renishaw

plc or its subsidiaries.

All brand names and product names used in this document are trade names, service marks, trademarks, or registered trademarks of their

respective owners.

All trademarks and trade names are acknowledged.

WEEE

The use of this symbol on Renishaw products and/or accompanying documentation indicates that the product should not be mixed with the

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 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

Renishaw plc warrants its equipment for a limited period (as set out in our Standard Terms and Conditions of Sale) provided that it is installed

exactly as defined in associated Renishaw documentation.

Prior consent must be obtained from Renishaw if non-Renishaw equipment (e.g. interfaces and/or cabling) is to be used or substituted. Failure

to comply with this will invalidate the Renishaw warranty.

Claims under warranty must be made from authorised service centres only, which may be advised by the supplier or distributor.

ACR3 installation and user's guide

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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.

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 Cardboard - 70% recycled

content

PAP 20

Packaging insert Corrugated fibreboard PAP 20

Packing foam Polyurethane PU 7

Bag Low density Polyethylene LDPE 4

Patents

Features of the Renishaw ACR3 and associated products and equipment are the subjects of the following patents and patent applications:

CN 100542740 EP 1463604 JP 4758065 US 7722515

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Product compliance

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

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International safety instructions

BG ‐ ПРЕДУПРЕЖДЕНИЕ

Моля, обърнете на приложение 1 и прочетете инструкциите за безопасност на вашия собствен език, преди за разопаковате и

монтирате този продукт.

CZ ‐ VÝSTRAHA

Před rozbalením a instalací tohoto výrobku si přečtěte bezpečnostní pokyny ve vlastním jazyce uvedené v příloze 1.

DA - ADVARSEL

Læs sikkerhedsinstrukserne i Appendix 1 FØR udpakning og installation af dette produkt.

DE - WARNHINWEIS

Bevor Sie dieses Produkt auspacken und installieren, konsultieren Sie bitte Anhang 1 und lesen Sie die Sicherheitshinweise in Ihrer Sprache.

EL ‐ ΠΡΟΕΙΔΟΠΟΙΗΣΗ

Γυρίστε στο Κεφάλαιο 1 και διαβάστε τις οδηγίες ασφαλείας στη δική σας γλώσσα προτού ανοίξετε αυτό το προϊόν για να το

εγκαταστήσετε.

EN - WARNING

Before unpacking and installing this product, please consult Appendix 1 and read the safety instructions in your language.

ES - ADVERTENCIA

Consulte el apéndice 1 y lea las instrucciones de seguridad en su idioma antes de desempaquetar e instalar este producto.

ET - HOIATUS

Palun vaadake 1. lisa ning lugege enne selle toote lahtipakkimist ja paigaldamist ohutusjuhend läbi.

FI - VAROITUKSIA

Lue liitteessä 1 olevat omalla kielelläsi kirjoitetut turvaohjeet ennen tämän tuotteen pakkauksen avaamista ja asentamista.

FR - AVERTISSEMENT

Consulter l'annexe 1 et les instructions de sécurité dans votre propre langue avant de déballer et d'installer ce produit.

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GA - RABHADH

Téigh chuig aguisín 1 agus déan na treoracha sábháilteachta a léamh i do theanga féin le do thoil sula ndéantar an táirge seo a dhíphacáil

agus a shuiteáil.

HR - NAPOMENA

Prije nego što proizvod izvadite iz ambalaže i ugradite ga, otvorite Prilog 1 i pročitajte sigurnosne upute na svom jeziku.

HU – FIGYELMEZTETÉS

A termék kicsomagolása és telepítése előtt olvassa el az 1. számú függelékben található, az Ön anyanyelvén hozzáférhető biztonsági

utasításokat.

IT - AVVISO

Prima di aprire ed installare questo prodotto, leggere le istruzioni di sicurezza nella vostra lingua riportate nell'Appendice 1.

JA ‐ 警告

この製品を箱から取り出し設置する前に、付録 1 に記載された安全性に関する注意書きをお読みください。

LT – ĮSPĖJIMAS

Prieš išpakuodami ir įdiegdami produktą, turite grįžti prie 1 priedo ir perskaityti nurodymus dėl saugos savo kalba.

LV – BRĪDINĀJUMS

Pirms šī izstrādājuma izsaiņošanas un uzstādīšanas izskatiet 1. pielikumā sniegtās drošības instrukcijas savā valodā.

MT - TWISSIJA

Jekk jogħġbok mur f'appendiċi 1 u aqra l‐istruzzjonijiet tas‐sigurtà fil‐lingwa tiegħek qabel ma toħroġ dan il‐prodott mill‐ippakkjar u

tinstallah.

NL - WAARSCHUWING

Ga naar appendix 1 en lees de veiligheidsinstructies in uw eigen taal, voordat u dit product uitpakt en installeert.

PL ‐ OSTRZEŻENIE

Przed rozpakowaniem i zainstalowaniem tego produktu prosimy o zapoznanie się z Dodatkiem 1 i przeczytanie zaleceń dotyczących

bezpieczeństwa w danym języku.

PT ‐ ADVERTÊNCIA

Você deve retornar ao Anexo 1 e ler as instruções de segurança em seu idioma antes de desembalar e instalar este produto.

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RO - AVERTISMENT

Înainte de a desface ambalajul şi a instala acest produs, vă rugăm să căutaţi Anexa 1 şi să citiţi cu atenţie instrucţiunile de siguranță, în limba

română.

SK ‐ VÝSTRAHA

Pred rozbalením a inštaláciou tohto produktu si pozrite prílohu 1 a prečítajte si bezpečnostné pokyny vo vašom jazyku.

SL - OPOZORILO

Preden izdelek vzamete iz embalaže in ga vgradite, odprite Prilogo 1 in preberite varnostna navodila v svojem jeziku.

SV - VARNING

Gå till bilaga 1 och läs säkerhetsinstruktionerna på ditt eget språk innan du packar upp och installerar denna produkt.

TW ‐ 警告

在拆開和安裝本產品之前，請翻頁至附錄 1 閱讀母語的安全指示。

中文 — 警告

在拆包和安装本产品之前，请翻到附录1，阅读中文版安全说明。

ACR3 installation and user's guide

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Warnings

Pinch hazards exist between moving parts and between moving and static parts. Do not hold the probe head during movements, or during

manual probe changes.

In all applications involving the use of machine tools or CMMs, eye protection is recommended.

Beware of unexpected movement. The user should remain outside of the full working envelope of probe head / extension / probe

combinations.

Remove power before performing any maintenance operations.

For instructions regarding the safe cleaning of Renishaw products, refer to the Maintenance section of the relevant product documentation.

It is the machine supplier's responsibility to ensure that the user is made aware of any hazards involved in operation, including those

mentioned in Renishaw product documentation, and to ensure that adequate guards and safety interlocks are provided.

ACR3 installation and user's guide

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Introduction

This guide contains information relating to the installation and operation of Renishaw's ACR3 (autochange rack) system.

This guide takes a step by step approach to fitting, aligning and datuming the rack as well as providing operational and troubleshooting

guidance.

System integration and software routines recommended for the successful implementation of the ACR3 are also provided.

ACR3 installation and user's guide

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System description

Renishaw's ACR3 is a four port rack that facilitates fast, automatic probe exchange without the need for probe re-qualification. The ACR3 is a

four port mechanical design that traverses the MRS rail. Driven by the motion of the CMM, it locks and unlocks the autojoint between the

probe and the probe head. In addition, the ACR3 provides covered storage and protection for up to eight probes and extension bars (two

four port systems can be linked to provide an eight port system).

Mounted within the CMM's working envelope, the ACR3 is combined with the modular rack system (MRS / MRS2) to form an automatic

change rack for probes and extension bars that incorporate the Renishaw autojoint. Each rack port is of modular design to permit easy

replacement should wear occur during the operational life of the ACR3.

Fast probe exchange cycles are achieved by the probe head docking the original probe and selecting a new one. The autochange system

consists of a four port autochange rack (ACR3) and the modular rack system (MRS / MRS2) as shown below.

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Autojoint

The autojoint (shown below) is a highly repeatable kinematic joint, one half of which is attached to the probe head, the other half to a probe,

extension bar or adapter.

Locking and unlocking of the autojoint is achieved either manually, using an autojoint key, or automatically, using the autochange rack

system. In all cases, the repeatability of the autojoint eliminates the need for probe requalification after each probe exchange.

MRS / MRS2

The MRS / MRS2 is the common mounting platform for the ACR3, SCP600 (stylus change port for SP600) and FCR25 (flexible change rack for

SP25M). It is available in a number of different overall lengths and heights. For a detailed explanation of this system, please refer to the MRS

installation and user's guide (Renishaw part number H-1000-5088) or the MRS2 installation guide (Renishaw part number H-1000-5255).

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System dimensions

4 port ACR3 system dimensions

8 port ACR3 system dimensions

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Compatible Renishaw products

Renishaw have a number of probe heads and probes that have either the male or female part of the autojoint fitted to them and are therefore

compatible for use with the ACR3. For additional information, please refer to the relevant product documentation.

Heads

PH10M PLUS - A motorised indexing probe head with 720 repeatable positions suitable for all two wire and multiwired probes.

PH10MQ PLUS - This is an in-quill mounted version of the PH10M PLUS head.

PH6M - A fixed autojointed probe head suitable for all two wire and multiwired probes.

Probes

SP25M - High accuracy scanning probe enabling the user to scan for form measurement and reverse engineering, rapid TTP for geometric

measurements is also possible.

SP600M - Analogue contact scanning probe which is ideal for profile scanning and it features 300 mm stylus capability. Permits the CMM to

gather large amounts of data very rapidly.

TP7M - High accuracy strain gauge based touch-trigger probe.

TP6A - This is a probe suited to general purpose probing applications offering longer and heavier styli carrying capability.

OTP6M - An optical trigger probe that uses a visible laser spot to provide a non-contact inspection solution for CMMs.

Using the Renishaw range of probe adaptor bars (PAA), the complete range of Renishaw M8 probes can be used in conjunction with the

autochange system. A brief description of some of these probes is given below:

TP20 - A 13 mm diameter kinematic touch-trigger probe consisting of a two piece design that provides the facility to repeatedly change

probe modules without the need for re-qualification.

TP200 - A 13 mm diameter strain gauge based touch-trigger probe consisting of a two piece design that provides the facility to repeatedly

change stylus modules without the need for re-qualification.

TP2 - A 13 mm diameter kinematic touch-trigger probe with adjustable stylus force.

TP6 - A 25 mm diameter kinematic touch-trigger probe of a robust design.

NOTES:

ACR3 can only be used in the horizonal orientation.

It is not possible to remove probes off the end of extension bars using ACR3.

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Head alignment for ACR3

It is necessary for the probe head to be aligned with both the movements of the CMM and the ACR3. This is because the autojoint is a high

force mechanical joint that could cause operational errors if used with an incorrectly aligned ACR3.

NOTE: The Renishaw PH10 PLUS motorised head system has been designed so that the roll and pitch of the autojoint is held

within the tolerances required for the ACR3 system, when connected to a standard Renishaw shank.

In the majority of installations only the yaw of the motorised head requires alignment. However, it is possible that the location of the probe

head shank to the CMM quill, or the mounting face of the PH10MQ PLUS to the CMM quill, is not held to the required tolerances. In some

cases, this could result in excessive ACR3 port wear or failure of the ACR3 to change probes.

This problem can be rectified by using either the AM1 or AM2 adjustment module.

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Alignment of the head - roll

The roll axis of the head is from the left-hand side to the right-hand side of the probe head. The maximum recommended alignment

error is 0.2°.

The recommended procedure for setting the roll of a motorised or indexing probe head is as follows:

NOTE: During this procedure the probe should not be qualified.

1. Index the probe head to an A‐axis position of 90° and a B‐axis position of ‐90°.

2. Using the probe attached to the probe head, measure the qualification sphere on the CMM table (sphere 1). Use the centre of this

measured sphere as a datum.

3. Index the probe head to an A‐axis position of 90° and a B‐axis position of 90°.

4. Using the probe attached to the probe head, measure the qualification sphere on the CMM table (sphere 2).

5. Calculate the roll angle for the probe head using the following formula:

arc TAN {Z axis position of sphere 2 / Y axis position of sphere 2} = Roll angle ﴾recommended <0.2°﴿

6. If the roll angle exceeds 0.2° then adjustment is required, please refer to ‘Adjusting the AM1' or ‘Adjusting the AM2' as appropriate and

repeat steps 1 to 5.

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Alignment of the head - pitch

The pitch axis of the head is from the front of the probe head (where the LED is located) to the rear of the probe head. The maximum

recommended alignment error is 0.2°.

The recommended procedure for setting the pitch of a motorised or indexing probe head is as follows:

NOTE: During this procedure the probe should not be qualified.

1. Index the probe head to an A‐axis position of 90° and a B‐axis position of 0°.

2. Using the probe attached to the probe head, measure the qualification sphere on the CMM table (sphere 1). Use the centre of this

measured sphere as a datum.

3. Index the probe head to an A‐axis position of 90° and a B‐axis position of 180°.

4. Using the probe attached to the probe head, measure the qualification sphere on the CMM table (sphere 2).

5. Calculate the pitch angle for the probe head using the following formula:

arc TAN { Z axis position of sphere 2 / X axis position of sphere 2 } = Pitch angle ﴾recommended <0.2°﴿

6. If the roll angle exceeds 0.2° then adjustment is required, please refer to ‘Adjusting the AM1' or ‘Adjusting the AM2'as appropriate and

repeat steps 1 to 5.

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Alignment of the head - yaw

The yaw axis of the head is the rotational axis of the probe head with respect to the quill of the CMM. The maximum recommended

alignment error is 0.2°.

The recommended procedure for setting the yaw of a motorised or indexing head is as follows:

NOTE: During the procedure the probe should not be qualified.

1. Index the probe head to an A‐axis position of 0° and a B‐axis position required for an autojoint probe to enter the ACR3.

2. Using the probe attached to the probe head, measure the qualification sphere on the CMM table (sphere 1). Use the centre of the measured

sphere as a datum.

3. Index the probe head to an A‐axis position of 90°, maintaining the same B‐axis position as in step 1.

4. Using the probe attached to the probe head, measure the qualification sphere on the CMM table (sphere 2).

5. Calculate the yaw angle of the probe head using the following formula:

arc TAN { X axis position of sphere 2 / Y axis position of sphere 2 } = Yaw angle ﴾recommended <0.2°﴿

6. If the yaw angle exceeds 0.2° then adjustment is required, please refer to ‘Adjusting the AM1' or ‘Adjusting the AM2' as appropriate and

repeat steps 1 to 5.

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Adjustment modules

AM1 adjustable module

The AM1 adjustment module is designed to provide quick and accurate angular alignment of the PH6M and PH10M PLUS with the axes of the

CMM and Renishaw ACR3.

In addition, the quick release mechanism allows the probe heads to be removed for storage and replaced without further alignment. In-built

overtravel protection minimises the risk of probe head damage.

Adjusting the AM1

Below are instructions on how to adjust the AM1 in order to align the probe head to the CMM axes. The procedure should be carried out in

the order specified:

Roll adjustment

Rotate the roll adjusting capstans equally and in opposite directions (i.e. rotate one capstan clockwise and the other anti-clockwise) to adjust

roll.

Pitch adjustment

Rotate the pitch adjusting capstan to increase or decrease the pitch.

Yaw adjustment

1. Release the lock screw.

2. Rotate the yaw adjusting screws equally in opposite directions to provide the required yaw.

3. Tighten the screws against each other without applying excessive torque.

4. Tighten the lock screw.

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Quick release of the AM1 from shank

1. Release the lock screw.

2. Retract ONE yaw adjustment screw.

NOTE: If repeatability of position is required on re-attachment, DO NOT alter the other screw. This repeatability of position is

normally sufficient for alignment with the autochange rack, but probes must be re-qualified for measurement.

Re-attachment of AM1 to shank

1. Locate the AM1 against the shank and rotate until engaged.

2. Tighten the yaw adjustment screw.

3. Tighten the locking screw.

AM2 adjustment module

The AM2 adjustment module is designed to provide quick and accurate angular alignment of the PH10MQ PLUS motorised probe head with

the axes of the CMM and Renishaw ACR3.

The AM2 consists of the adjuster plate, which is attached to the quill of the CMM, and a set of adjusters fitted to the flange of the head.

The probe head is fixed to the adjuster plate by a pair of captive screws.

The AM2 incorporates a quick release mechanism that allows the same probe head to be removed for storage and refitted without further

alignment.

NOTE: If repeatability of position is required on re-attachment, only the securing screws should be released. Do not alter the other

screws. This repeatability of position is normally sufficient for alignment with the autochange rack, but probes must be requalified

for measurement.

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Adjusting the AM2

A special tool is supplied, consisting of a concentric hexagon key and socket spanner. This should be located on the adjusters and locknuts

recessed into the face of the head mounting flange.

NOTE: Springs are fitted under the adjuster locknuts to provide some preload during set up.

The procedure to use this tool is:

1. Slacken the locknut slightly using the outer part of the tool.

2. Set the adjuster using the inner part of the tool.

3. While holding the adjuster stationary with the inner part of the tool, tighten the locknut using the outer part of the tool:

Roll adjustment: Using the AM2 tool and the procedure given above, adjust the roll adjustment screw on the AM2.

Pitch adjustment: Using the AM2 tool and the procedure given above, adjust the pitch adjustment screw on the AM2.

Yaw adjustment: Using the AM2 tool and the procedure given above, adjust the yaw adjustment screw on the AM2.

4. Tighten the two securing screws.

NOTE: Tightening the securing screws could cause the roll, pitch or yaw alignment to change. It is therefore recommended that the

alignments are checked after this procedure.

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