Renishaw RTP20 Manual de usuario
General information
© 2006 ‐ 2019 Renishaw plc. All rights reserved.
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® and the probe emblem used in the RENISHAW logo are registered trademarks of Renishaw plc in the UK and other countries.
apply innovation is a trademark of Renishaw plc.
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.
RTP20 user's guide
www.renishaw.com
Issued 07 2019
2
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 Non-corrugated fibreboard PAP 21
Outer box Corrugated fibreboard PAP 20
Packaging insert Corrugated fibreboard PAP 20
Patents
Features of the RTP20 system and associated products, equipment and techniques are the subjects of one or more of the following patents
and patent applications:
CN1695036B EP1546644 JP4361016 US7293365
RTP20 user's guide
www.renishaw.com
Issued 07 2019
3
Product compliance
EU declaration of conformity
Contact Renishaw plc or visit www.renishaw.com/EU for the full EU 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/ChinaRoHS for the full China RoHS tabulation.
RTP20 user's guide
www.renishaw.com
Issued 07 2019
4
References and associated documents
The following Renishaw documents are referred to in this document or may be a source of further relevant information. They can easily be
acquired from Renishaw web site www.renishaw.com.
Title Document number
User's guide: TP20 system H-1000-5008
RTP20 user's guide
www.renishaw.com
Issued 07 2019
5
System description
RTP20 is an indexable head that uses the CMM's motion for repeatable repositioning. It offers low‐cost ‘motorised' head functionality with an
integral TP20 touch-trigger probe.
Automated indexing of the head is realised through an innovative process which uses the motion of a CMM to achieve motorised head style
operation. This indexing process comprises of three operations:
An external locking lever on the probe head is driven against a dedicated sphere mounted to a pole located on the bed of the CMM, thus
unlocking the head
The CMM motion is then used to engage a drive-cup located in the head's A-axis swivel, with the pole-mounted sphere, enabling rotation
of the head in the A and B-axes by driving around the pole
The indexing operation is completed by again using the CMM motion to drive the locking lever against the pole-mounted sphere, thus
locking the head
The automated indexing of the RTP20 allows the integral TP20 probe to be moved to 168 repeatable positions in 15-degree increments using
both the A and B-axes, requiring a one-time only qualification for each stylus position thus ensuring fast throughput for part inspection. Using
the CMM motion to lock and orientate the head together with the MCR20 change rack, which allows repeatable interchange between qualified
probe modules, provides a fully automated system.
NOTE: The red LED on the front of the head indicates probe status, and can be controlled by either the CMM or a Renishaw probe
interface. Conventionally LED ON indicates probe seated (armed), and LED OFF indicates probe triggered.
Electrical connection is via a 5 pin DIN connector.
RTP20 user's guide
www.renishaw.com
Issued 07 2019
6
RTP20
Specification
Measuring performance
Positional repeatability ﴾2σ﴿ 2 μm ﴾0.00008 in﴿
(At stylus tip with TP20 standard force module and 10 mm (0.39 in) stylus length)
Positional repeatability ﴾2σ﴿ 3 μm ﴾0.00012 in﴿
(At stylus tip with EM2 94.5 mm (3.72 in) extended module and stylus 10 mm (0.39 in) long).
Technical data
Range of articulation A-axis 0° to 90° in 15° increments
Range of articulation B-axis ±180° in 15° increments
Dual axis lock Via lock lever
Head mounting MS range of shanks
Cable connection 5-pin DIN socket
Cable length 50 m with (24 awg) conductors
Probe status indication 1 LED
Maximum load module EM2 - 94.5 mm (3.72 in) extended
Operating temperature range +10 °C to +40 °C ﴾+50° to +104 °F﴿
Storage temperature range ‐10 °C to +70 °C ﴾+14° to +158 °F﴿
Probe module mounting TP20 kinematic
Weight - without shank 208 g
RTP20 user's guide
www.renishaw.com
Issued 07 2019
7
Installation
Mounting the shank on the probe head
NOTE: The RTP20 shanks are factory fitted and are selected by part number when ordering (see 'Parts list').
Hold the shank in the recess on the top face of the RTP20
Rotate the shank until the four screw holes are aligned
Fix the shank in place using only M3 × 5 mm screws ﴾supplied﴿
Progressively tighten with the 2.5 mm A/F hexagonal key (supplied)
Mounting the RTP20 to the CMM
The head is normally attached to the CMM quill using a shank to suit it.
For optimum shielding against EM phenomena, it is recommended that the shank is grounded to the same electrical point as the control
system.
Custom designed mountings are available, subject to approval from Renishaw's Custom Products Department. Please contact your supplier or
Renishaw for further information.
The head mounting must be rigid, as any movement during operation will introduce system measurement errors. If the head is replaced or
repositioned in the quill, all head positions in current use must be requalified before making further measurements.
NOTE: Remove plastic cap from kinematic mount prior to attaching a TP20 module. Keep in a safe place for future protection.
RTP20 user's guide
www.renishaw.com
Issued 07 2019
9
Operation
WARNING: Safety glasses should be worn and the CMM speed be reduced during initial operation of RTP20.
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.
CAUTION: RTP20 is designed for automated operation under direct control of the CMM software. To avoid possible collision
during use, RTP20 must not be unlocked, re-orientated or locked by hand during normal operation.
Preparing RTP20 for use
To prepare RTP20 for use, the pivot pole must be correctly fitted to the CMM table to ensure unobstructed operation of the probe head. The
pole consists of three sections; a fixing stud, middle stem and upper pole section which has the pivot sphere at its tip. The pole sections must
be fitted using the torque tool (supplied) to ensure the pole does not become loose during operation. Various fixing studs are available for
different CMM table fixture holes, these are; M6 x 1, M8 x 1.25, M10 x 1.5, 5/16” x UNC and 3/8” x UNC.
CAUTION: RTP20 must be locked in the A, 0 and B, 0 position before initially defining the pivot pole sphere.
RTP20 user's guide
www.renishaw.com
Issued 07 2019
10
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