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Renishaw ACR3 Installation And User Manual
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Renishaw ACR3 Installation And User Manual

Renishaw ACR3 Installation And User Manual

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ACR3 installation and user's guide
Page 1 of 45
ACR3 installation and user's guide 
Document part number H-1000-5087-02-A
file://C:\Temp\~hh63CD.htm
10/12/2010

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Summary of Contents for Renishaw ACR3

  • Page 1 ACR3 installation and user's guide Page 1 of 45 ACR3 installation and user's guide  Document part number H-1000-5087-02-A file://C:\Temp\~hh63CD.htm 10/12/2010...

  • Page 2: Warranty

    Renishaw equipment previously sold. 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.
  • Page 3 ACR3 installation and user's guide Page 3 of 45 JP 3,018,015  JP 3,101,322  JP 501,776/1994  JP 503,652/1994  JP 505,622/1999  US 4651405  US 4813151  US 4817362  US 5,084,981  US 5,088,337  US 5,339,535 ...
  • Page 4 ACR3 installation and user's guide Page 4 of 45 ACR3 EC DECLARATION OF CONFORMITY  EC DECLARATION OF CONFORMITY  Renishaw plc declare that the product: - Name: ACR3 Description: Autochange rack Part no. A-5036-0005 Complies with directive: 2006/42/EC Machinery Complies with standards BS EN 292-1:1991+ A1:2009 Safety of machinery - Basic concepts, general principles for design: - BS EN 292-2:1991+ A1:2009 Part 1.
  • Page 5 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.
  • Page 6 (MANUTENZIONE) della documentazione del prodotto. Il fornitore della macchina ha la responsabilità di avvertire l’utente dei pericoli inerenti al funzionamento della stessa, compresi quelli riportati nelle istruzioni della Renishaw, e di mettere a disposizione i ripari di sicurezza e gli interruttori di esclusione.
  • Page 7 Cabeça da Sonda/ Extensão/ Sonda. Desligar a alimentação antes de efectuar qualquer operação de manutenção. Para instruções relativas à limpeza segura de produtos Renishaw, consultar a secção MAINTENANCE (MANUTENÇÃO) da documentação do produto. É responsabilidade do fornecedor da máquina assegurar que o utilizador é consciencializado de quaisquer perigos envolvidos na operação, incluindo os mencionados na documentação do produto...
  • Page 8 De leverancier van de machine is ervoor verantwoordelijk dat de gebruiker op de hoogte wordt gesteld van de risico’s die verbonden zijn aan bediening, waaronder de risico’s die vermeld worden in de produktendocumentatie van Renishaw. De leverancier dient er tevens voor te zorgen dat de gebruiker is voorzien van voldoende beveiligingen en veiligheidsgrendelinrichtingen.
  • Page 9 επηρεάζεται από όλους τους συνδυασμούς λειτουρμίας της κεφαλής τοθ ανιχνευτή, της προέκτασης και του ανιχνευτή. Αποσυνδέστε το μηχάνημα από το ηλεκτρπικό ρεύμα προτού επιχειρήσετ τυχόν εργασίες. Για οδηγίες που αφορούν τον ασφαλή καθαρισμό των προϊόντων Renishaw βλέπετε το κεφάλαιο MAINTENANCE (ΣΥΝΤΗΡΗΣΗ) στο διαφωτιστικό υλικ του προϊόντος. file://C:\Temp\~hh63CD.htm...
  • Page 10 Page 10 of 45 ACR3 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.
  • Page 11 Page 11 of 45 ACR3 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).
  • Page 12 MRS  The MRS 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.
  • Page 13 ACR3 installation and user's guide Page 13 of 45 ACR3 system dimensions  4 port ACR3 system dimensions  8 port ACR3 system dimensions  file://C:\Temp\~hh63CD.htm 10/12/2010...
  • Page 14 ACR3 installation and user's guide Page 14 of 45 file://C:\Temp\~hh63CD.htm 10/12/2010...
  • Page 15 Page 15 of 45 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.
  • Page 16 Page 16 of 45 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.
  • Page 17 ACR3 installation and user's guide Page 17 of 45 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°.
  • Page 18 ACR3 installation and user's guide Page 18 of 45 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.
  • Page 19 ACR3 installation and user's guide Page 19 of 45 file://C:\Temp\~hh63CD.htm 10/12/2010...
  • Page 20 The AM1 adjustment module is designed to provide quick and accurate angular alignment of the PH6M and PH10M 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.
  • Page 21 ACR3 installation and user's guide Page 21 of 45 must be re-qualified for measurement. 5. 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.
  • Page 22 The AM2 adjustment module is designed to provide quick and accurate angular alignment of the PH10MQ 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.
  • Page 23 ACR3 installation and user's guide Page 23 of 45 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 ...
  • Page 24 Page 24 of 45 Fitting a four port ACR3 system to MRS  It is recommended that the ACR3 rack be attached to the MRS rack using the following procedure. During this procedure, it is assumed that the MRS rack has been installed as detailed in the MRS installation guide (H-1000-5088).
  • Page 25 ACR3 installation and user's guide Page 25 of 45 3. Position the ACR3 on the MRS rack such that the rack can move freely from its unlocked position to its locked position. 4. Using the 5 mm hex key (supplied), tighten the two countersunk bolts.
  • Page 26 ACR3 installation and user's guide Page 26 of 45 NOTE: The springs supplied can be inserted into the short 'T' nut and used to maintain the position of the 'T' nut in the MRS rail. file://C:\Temp\~hh63CD.htm 10/12/2010...
  • Page 27 'T' nut is positioned as indicated above. 2. Slide ACR3 to the fully unlocked position (left-hand side of travel). Push ACR3 ports 5 - 8 into the fully locked position (right-hand side of travel). Pass the bolt through the left hand countersunk clearance hole into the long T nut.
  • Page 28 7. Check the alignment of each of the ACR3’s with respect to the CMM axis. This is achieved by taking two points on the front of each ACR3 unit as shown in figure 14. The ‘run out’ of each of the ACR3 units, with respect to the CMM axis, should be less than 0.5 mm, between the points on each rack.
  • Page 29 ACR3 installation and user's guide Page 29 of 45 8. Adjustment of the ACR3’s (with respect to the machine axis) should be completed by releasing the necessary mounting bolt, manually repositioning the ACR3 and then re-tightening the bolt. file://C:\Temp\~hh63CD.htm 10/12/2010...
  • Page 30 Datuming the ACR3  The following section describes the recommended procedure for datuming the ACR3 once it is fitted to the MRS rack and the MRS is fitted to the CMM table (please refer to 'Fitting the ACR3 to the MRS - port port').
  • Page 31 Use extreme caution: The machine could be crashed. 5. Remove the probe from the probe head (at the autojoint). 6. Position the autojoint puller into the central slot of the ACR3 setting piece. Take care not to move the position of the ACR3 (see figure 21).
  • Page 32 1. Move the probe head so that the external surface of the autojoint is just touching the front of the ACR3 setting piece. Use ~50 μm DCC incremental moves, to identify the correct Y axis position. 2. Record a point at this position (point B).
  • Page 33 ACR3 installation and user's guide Page 33 of 45 shown in figure 24. Take care to avoid the driver blade and the mounting screw holes. 3. Construct an axis system using: “Port1 unlocked, points 1 to 4” as the primary plane (refer to step 1).
  • Page 34  * Port number (e.g. 1, 2, 3 etc.). 6. If an eight port ACR3 is to be fitted to the CMM then step 7 should be completed, otherwise please go to step 8. 7. The CMM can now locate ports 5 to 8 in the unlocked position under CNC control. The table below shows the nominal location of the centre of these ports, with respect to the axis 1, assuming that the rack is running along the CMM’s Y axis.
  • Page 35 9. Move the ACR3 to the locked position (positioned to the right-hand side of the travel). 10. Take a Z axis reference point (x = 6.5 mm, y = 75.5 mm) for ACR3 position in the locked position. Use this point as a Z axis sub datum for locating ports 1 through 4 in the locked position.
  • Page 36 Dimensions in mm Recommended procedure for locating port: Take a Z axis reference point (x = 6.5 mm, y = 262.3 mm) for ACR3 in the unlocked position. Use this  point as a Z axis sub datum for locating ports 5 to 8 in the unlocked position.
  • Page 37 Locate the next port.  NOTE: As the movement of the ACR3 may not be a single axis move, the following procedure utilises dedicated axis systems for each port. 14. An axis system is now constructed for each of the ports. This step shows the construction steps for port 1 and should be repeated for each port: Construct a plane from port1 unlocked points 1 to 4 and port1 locked points 1 to 4 (port plane).
  • Page 38 20. Move the ACR3 so that port 4 is located behind the position of the probe head. 21. Slowly move the probe head in the X axis to a position of X = 0 mm (probe docked into the ACR3).
  • Page 39 Translate the Y axis datum position by probe Y offset.  Store as portx axis.  25. Calculate the ACR3 traverse distance (distance): Recall port1 axis.  Recall port1 locked circle (refer to step 11) the Y axis position of this feature is the traverse distance ...
  • Page 40 Stand-off position Entry into port Connect female autojoint Move to lock autojoint Distance (refer to step 25 of Datuming ACR3 web page) Move to lift off position Distance (refer to step 25 of Datuming ACR3 web page) Exit port Distance...
  • Page 41 ACR3 installation and user's guide Page 41 of 45 Inhibit probe signal Entry into port Distance (refer to step Move to unlock autojoint Release from the femail autojoint Exit port file://C:\Temp\~hh63CD.htm 10/12/2010...

  • Page 42: Troubleshooting

    Re-datum ACR3 - refer to 'Datuming the Attempting to "stack" ACR3'. extension bars. The ACR3 system has not been designed to Damage occured to ACR3. support the stacking of extension bars. Return the ACR3 to the local Renishaw service centre.
  • Page 43 Page 43 of 45 ACR3 accessories and spare parts  As the ACR3 is part of a modular system offered by Renishaw, all part numbers for the ACR3 system, the MRS system and other components that can be fitted to the rack are specified below:...

  • Page 44: Maintenance

    ACR3. There are no other user serviceable parts, should the unit become defective it should be returned to the local Renishaw service centre. Cleaning  The ACR3 is not a sealed unit. Cleaning of the ACR3 should therefore be restricted to the use of a clean dry cloth. Port replacement ...
  • Page 45 ACR3 installation and user's guide Page 45 of 45 file://C:\Temp\~hh63CD.htm 10/12/2010...