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1、J IS JAPANESE I N DUSTR IAL STANDARD Translated and Published by Japanese Standards Association JIS B 7440-4 12003 Geometrical Product Specif cat ions (GPS)-Acceptance and reverif cat ion tests for coordinate measuring machines (CMM)-Part 4 : CMMs used in scanning measuring mode ICs 17.040.30 Refere
2、nce number : JIS B 7440-4 : 2003 (E) PROTECTED BY COPYRIGHT 1 0 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:53:23 MDTNo reproduction or networking permitted without license from IH
3、S -,-,- B 7440-4 : 2003 (IS0 10360-4 : 2000) Foreword This translation has been made based on the original Japanese Industrial Standard established by the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee according to the proposal of establi
4、shing a Japanese Industrial Standard from Japanese Standards Association (JSA), with a draft of Industrial Standard based on the provision of Article 12 Clause 1 of the Industrial Standardization Law. This Standard has been made based on IS0 10360-4 : 2000 Geometrical Product Specifications (GPS)-Ac
5、ceptance and reverification tests for coordinate measuring machines (CMM)-Part 4 : CMMs used in scanning measuring mode for the purposes of making it easier to compare this Standard with International Standard; to prepare Japanese Industrial Standard conforming with International Standard; and to pr
6、opose a draft of an International Standard which is based on Japanese Industrial Standard. Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registratio
7、n of utility model after opening to the public which have technical properties. The relevant Minister and the Japanese Industrial Standards Committee are not responsible for identifying the patent right, application for a patent after opening to the public, utility model right or application for reg
8、istration of utility model after opening to the public which have the said technical properties. JIS B 7440 consists of the following 6 parts under the general title Geometrical Product Specifications (GPS)-Acceptance and reverification tests for coordinate measuring machines (CMM). Part 1 : Vocabul
9、ary Part 2 : CMMs used for measuring size Part 3 : CMMs with the axis of a rotary table as the fourth axis Part 4 : CMMs used in scanning measuring mode Part 5 : CMMs using multiple-stylus probing systems Part 6 : Estimation of errors in computing Gaussian associated features Date of Establishment:
10、2003-03-20 Date of Public Notice in Official Gazette: 2003-03-20 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Committee on Machine Elements JIS B 7440-4 : 2003, First English edition published in 2004-06 Translated and published by: Japanese Standards Associatio
11、n 4-1 -24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original TIS is to be the final authority. O JSA 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means
12、, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resa
13、le, 03/14/2007 20:53:23 MDTNo reproduction or networking permitted without license from IHS -,-,- B 7440-4 : 2003 (IS0 10360-4 : 2000) Contents Introduction . 1 2 3 4 4.1 4.2 4.3 4.4 4.5 5 5.1 5.2 5.3 5.4 5.5 6 6.1 6.2 7 7.1 7.2 7.3 Scope Normative references Terms and definitions . Requirements for
14、 metrological characteristics . Time for scanning test Error of indication . Environmental conditions Stylus system . Operating conditions . Acceptance test and reverification test . General Principles Measuring equipment . Procedure Obtention of test results Compliance with specifications . Accepta
15、nce test Reverification test . Applications Acceptance test Reverification test . Interim check . Annex A (informative) Interim check Annex B (informative) Workpiece related influences . Annex C (informative) Relation to the GPS matrix model Bibliography . (i) Page 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 6 6
16、6 7 7 7 8 8 9 10 11 13 PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:53:23 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE IND
17、USTRIAL STANDARD JIS IB 7440-4 2003 (IS0 10360-4 : 2000) Geometrical Product Specifications (GPS)- Acceptance and reverification tests for coordinate measuring machines (CMM)- Part 4 : CMMs used in scanning measuring mode Introduction This Japanese Industrial Standard has been prepared based on the
18、first edition of IS0 10360-4 Geometrical Product Specifications (GPS)-Acceptance and reverification tests for coordinate measuring machines (CMM)-Part 4 : CMMs used in scanning measuring mode published in 2000 without modifying the techni- cal contents. The portions of this Standard shown by dotted
19、underlines are the matters not stated in the corresponding International Standard. This Standard is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see TR B 0007). It influences link 5 of the chains of standards on size, distance, radius, angle, fo
20、rm, orientation, location, run- out and datums. The more detailed information on the relationship of this Standard to other stan- dards and the GPS matrix model, see annex C. The acceptance test and reverification test of this Standard are applicable only to a CMM that is capable of being used in a
21、scanning measuring mode and may be used to determine the form of a surface or the parameters of an associated feature. The tests specifies in this Standard are performed in addition to the size measur- ing test according to JIS B 7440-2, which are conducted without the use of scan- ning, and are des
22、igned to assess the performance of a CMM used in a scanning measuring mode. It is normally not useful to isolate the scanning probing errors from other sources of machine error. 1 Scope This Standard specifies the acceptance test which verifies that the per- formance of a CMM used in scanning measur
23、ing mode is as stated by the manufac- turer. It also specifies the reverification test which enables the user to periodically reverify the performance of a CMM used in scanning measuring mode. The acceptance test and reverification test described in this Standard are appli- cable only to CMMs capabl
24、e of performing scannings using any type of contacting probing system(s1. This Standard specifies items as follows. - Requirements for metrological characteristics, - Acceptance test and reverification test, - Compliance with specifications, - Applications. PROTECTED BY COPYRIGHT Copyright Japanese
25、Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:53:23 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 B 7440-4 : 2003 (IS0 10360-4 : 2000) NOTE : The International Standard corr
26、esponding to this Standard is as fol- lows. In addition, symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISOLCEC Guide 21. IS0 10360-4 : 2000 Geometrical P
27、roduct Specifications (GPS)-Accep- tance and reverification tests for coordinate mea- suring machines (CMM)-Part 4 : CMMs used in scanning measuring mode (IDT) 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this S
28、tandard. The most recent editions of the standards (including amendments) indicated below shall be applied. JIS B 0641-1 Geometrical Product Specifications (GPS)-Inspection by measure- ment of workpieces and measuring equipment-Part 1 : Decision rules for proving conformance or nonconformance with s
29、pecifications NOTE : IS0 14253-1 : 1998 Geometrical Product Specifications (GPS)-Inspec- tion by measurement of workpieces and measuring equipment-Part 1 : Decision rules for proving conformance or non-conformance with speci- fications is identical with the said standard. JIS B 7440-1 Geometrical Pr
30、oduct Specifications (GPS)-Acceptance and reveri- fication tests for coordinate measuring machines (CMM)-Part 1 : Vocabulary NOTE : IS0 10360-1 : 2000 Geometrical Product Specifications (GPS)-Accep- tance and reverification tests for coordinate measuring machines (CMM)-Part 1 : Vocabulary is identic
31、al with the said standard. (VIM) International Vocabulary of Basic and General Terms in Metrology, BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML, 2nd edition, 1993 3 Terms and definitions For the purposes of this Standard, the terms and defi- nitions given in JIS B 7440-1, JIS B 0641-1 and VIM apply. 4 R
32、equirements for metrological characteristics 4.1 Error of indication The scanning probing error(s), Tij, shall not exceed the maximum permissible scanning probing error(s), MPET, as stated by the manufac- turer, in case of acceptance tests and the user, in case of reverification tests. The scanning
33、probing error(s), Tij, and the maximum permissible scanning prob- ing error(s), MPET, are expressed in micrometres. 4.2 Time for scanning test The time for scanning test, zij, shall not exceed the maximum permissible time for scanning test, MPT, as stated by the manufacturer, in case of acceptance t
34、ests and the user, in case of reverification tests. The time for scanning test, zij, and the maximum permissible time for scanning test, MPT, are expressed in seconds. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111
35、001, User=Wing, Bernie Not for Resale, 03/14/2007 20:53:23 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 B 7440-4 : 2003 (IS0 10360-4 : 2000) 4.3 Environmental conditions Limits to be respected for permissible environ- mental conditions such as temperature conditions, a
36、ir humidity and vibration at site of installation that influence the measurements shall be specified by the manufac- turer, in case of acceptance tests and the user, in case of reverification tests. In both cases, the user is three to choose the conditions within the specified limits. 4.4 Stylus sys
37、tem A ball-ended stylus with a nominal tip diameter of 3 mm shall be used for performing the test for CMMs used in scanning measuring mode. Other limits to be respected for the stylus system configuration, to which the stated values of MPET, apply, shall be specified by the manufacturer, in case of
38、acceptance tests and the user, in case of reverification tests. In both cases, the user is free to choose the way in which the components of the stylus system are configured within the specified limits. The form deviation of the stylus tip will influence the measurement results and shall be consider
39、ed when proving conformance or non-conformance with specification. NOTE : It is recommended that a stylus orientation is chosen which will en- sure all axes of the probe and the CMM are exercised simultaneously when performing the scanning. 4.5 Operating conditions The CMM shall be operated using th
40、e procedures given in the manufacturers operating manual when conducting the tests given in clause 5. Specific areas in this manual to be adhered to are for example: a) b) stylus system configuration; c) d) probing system qualification. machine start up/warm up cycles; cleaning procedures for stylus
41、 tip and reference sphere; NOTE : The stylus tip and the reference sphere should be cleaned before the probing system qualification so as to leave no residual film which could affect the measuring or test result. 5 Acceptance test and reverification test 5.1 General The tests described are applicabl
42、e for: a) b) c) d) scanning on a predefined path to collect a high density of points (HP); scanning on a predefined path to collect a low density of points (LP); scanning on a non-predefined path to collect a high density of points (HN); scanning on a non-predefined path to collect a low density of
43、points (LN). NOTE 1 Scanning to collect a high density of points is particularly relevant when information on deviations from perfect form is required. Scanning to collect a low density of points may be relevant to allow the optimiza- tion of speed when information on associated feature characterist
44、ics is required. In any case the test is not able to define completely CMM PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:53:23 MDTNo reproduction or networking p
45、ermitted without license from IHS -,-,- 4 B 7440-4 : 2003 (IS0 10360-4 : 2000) performance when it is used for either form measurement or associated feature calculation. If the CMM is to be used for a specific form measurement task (for example roundness), it is recommended that a standardized test
46、for that measurement task is carried out. Surface roughness, surface discontinuities and lubricity of workpiece and stylus influence scanning performance. In this test these influ- ence parameters are controlled producing results that may not reflect those obtained in real workpieces (see annex B).
47、NOTE 2 NOTE 3 5.2 Principles The principle of the assessment method is to establish whether the CMM is capable of measuring maximum permissible scanning probing error(s), MPET, by determining the range of the values of the radial distance R on a test sphere and maximum permissible time for scanning
48、test, MPT, by monitoring the elapsed time for the test. The centre and radius of a test sphere is determined by scanning the test sphere in four target scan planes. The scanning probing errorb), Tij, is calculated as the range of radii between the measured centre and all of the assessed scan points
49、i.e. the absolute difference between the maximum and minimum measurement results. Acceptance tests are executed according to the manufacturers specifications and procedures and reverification tests are executed according to the users specifica- tions and the manufacturers procedures. 5.3 Measuring equipment 5.3.1