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1、J IS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association JIS B 7440-3:203 Geometrical Product Specifications (GPS)-Acceptance and reverification tests for coordinate measuring machines (CMM)-Part 3 : CMMs with the axis of a rotary table as the fourth axis ICs 17.
2、040.30 Reference number : JIS B 7440-3 : 2003 (E) PROTECTED BY COPYRIGHT 10 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:53:22 MDTNo reproduction or networking permitted without lic
3、ense from IHS -,-,- B 7440-3 : 2003 (IS0 10360-3 : 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 proposa
4、l of establishing 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 10360-3 : 2000 Geometrical Product Specificati
5、ons (GPS)-Acceptance and reverification tests for coordinate measuring machines (CMM)-Part 3 : CMMs with the axis of a rotary table as the fourth axis for the purposes of making it easier to compare this Standard with International Standard; to prepare Japanese Industrial Standard conforming with In
6、ternational Standard; and to propose 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
7、 or application for registration 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 identiS+ing the patent right, application for a patent after opening to the public, utility mod
8、el right or application for registration 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 m
9、achines (CMM). Part 1 : Vocabulary 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 f
10、eatures Date of Establishment: 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 7440-3 : 2003, First English edition published in 2004-06 Translated and published by
11、: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utiliz
12、ed in any form or by any means, 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,
13、User=Wing, Bernie Not for Resale, 03/14/2007 20:53:22 MDTNo reproduction or networking permitted without license from IHS -,-,- B 7440-3 : 2003 (IS0 10360-3 : 2000) Contents Page 1 1 2 2 2 2 2 3 3 3 3 3 4 4 6 8 8 9 9 9 9 9 10 11 13 Introduction . 1 2 3 4 4.1 4.2 4.3 4.4 4.5 5 5.1 5.2 5.3 5.4 6 6.1 6
14、.2 7 7.1 7.2 7.3 Scope Normative references 1 . Terms and definitions . Requirements for metrological characteristics . Error of indication . Environmental conditions Rotary table Stylus system . Operating conditions . Acceptance test and reverification test . Principles Measuring equipment . Proced
15、ure Obtainment of test results . Compliance with specifications . Acceptance test Reverification test . Applications Acceptance test Reverification test . Interim check . Annex A (informative) Interim check Annex B (informative) Relation to the GPS matrix model Bibliography . PROTECTED BY COPYRIGHT
16、Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:53:22 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 7440-3 : 2003 (IS0 1036
17、0-3 : 2000) Geometrical Product Specifications (GPS)- Acceptance and reverification tests for coordinate measuring machines (CMM)- Part 3 : CMMs with the axis of a rotary table as the fourth axis Introduction This Japanese Industrial Standard has been prepared based on the first edition of IS0 10360
18、-3 Geometrical Product Specifications (GPS)-Acceptance and reverification tests for coordinate measuring machines (CMM)-Part 3 : CMMs with the axis of a rotary table as the fourth axis published in 2000 without modify- ing the technical contents. The portions of this Standard shown by dotted underli
19、nes 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 000-7). It influences link 5 of the chains of standards on size, distance, radius, angle, form, or
20、ientation, location, run- out and datums. For more detailed information on the relationship of this Standard to other stan- dards and the GPS matrix model, see annex B. The acceptance test and reverification test of this Standard are applicable to CMMs which use a rotary table for the orientation of
21、 a workpiece being measured. The tests specified in this Standard are performed in addition to the size mea- suring tests according to JIS B 7440-2, which are conducted with the rotary table stationary. They are designed to detect the system measuring errors relative to an axis system fixed to the r
22、otary table. It is normally not useful to isolate the rotary table errors from other sources of machine error. 1 Scope This Standard specifies the acceptance test which verifies that the per- formance of four-axis coordinate measuring machines (CMM) is in accordance with that stated by the manufactu
23、rer. It also specifies the reverification test, which en- ables the user to reverify the performance of a four-axis CMM periodically. The acceptance test and reverification test described in this Standard are appli- cable only to four-axis machines with three axes for measuring workpiece coordi- nat
24、es, plus a rotary table for orienting the workpiece. This Standard specifies items as follows. - Requirements for metrological characteristics, - Acceptance test and reverification test, - Compliance with specifications, - Applications. NOTE : The International Standard corresponding to this Standar
25、d is as fol- lows. 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 20:53:22 MDTNo reproduction or networking permitted without license from IHS -,-,- In addition, sym
26、bols which denote the degree of correspondence in the contents between the relevant International Standard and JI$ are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide IS0 10360-3 : 2000 21. Geometrical Product Specifications (GPSI-Accep- tance and reverification
27、tests for coordinate mea- suring machines (CMM)-Part 3 : CMMs with the axis of a rotary table as the fourth axis (IDT) 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the
28、standards (including amendments) indicated below shall be applied. Geometrical Product Specifications (GPSI-Inspection by measure- ment of workpieces and measuring equipment-Part 1 : Decision rules for proving conformance or nonconformance with specifications NOTE : IS0 14253-1 : 1998 Geometrical Pr
29、oduct Specifications (GPS)-Inspec- tion by measurement of workpiece and measuring equipment- Part 1 : Decision rules for proving conformance or non-conformance with specifications is identical with the said standard. JIS B 0641-1 JIS B 7440-1 Geometrical Product Specifications (GPS)-Acceptance and r
30、everi- fication tests for coordinate measuring machines (CMM)-Part 1 : Voca b u 1 a ry IS0 10360-1 : 2000 Geometrical Product Specifications (GPS)-Accep- tance and reverification tests for coordinate measuring machines (CMMI-Part 1 : Vocabulary is identical with the said standard. (VIM) Internationa
31、l Vocabulary of Basic and General Terms in Metrology, BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML, 2nd edition, 1993 NOTE : 3 Terms and definitions nitions given in JIS B 7440-1, JIS B 0641-1 and VIM apply. For the purposes of this Standard, the terms and defi- 4 Requirements for metrological character
32、istics 4 . 1 The errors of indication, FR, FT, FA, as defined in JIS B 7440-1, for the three four-axis errors shall not exceed the maximum permissible errors, MPEFR, MPEFT, MPEFA, as defined in JIS B 7440-1, as stated by the manu- facturer, in case of acceptance tests and the user, in case of reveri
33、fication tests. The errors of indication (FR, FT, FA) and the maximum permissible errors (MPEFR, MPEFT, MPEFA) are expressed in micrometres. Error of indication 4.2 Environmental conditions Limits to be respected for permissible environ- mental conditions such as temperature conditions, air humidity
34、 and vibration at the site of installation that influence the measurements shall be specified by the manu- facturer, in case of acceptance tests and the user, in case of reverification tests. In both cases, the user is free to choose the conditions within the specified limits. PROTECTED BY COPYRIGHT
35、 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:53:22 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 B 7440-3 : 2003 (IS0 10360-3 : 2000) 4 . 3 The maximum
36、permissible errors (MPEFR, MPEFT, MPEFA) ap- ply for any permitted loading, location and orientation of the rotary table on the CMM and for any locations of the test spheres on the rotary table within specified limits. Rotary table 4.4 Stylus system Limits to be respected for the stylus system confi
37、guration, to which the stated values of MPEFR, MPEFT, MPEFA apply, shall be specified by the manufacturer, in case of acceptance tests and the user, in case of reverification tests. In both cases, the user is free to choose the stylus system configuration within the specified limits. The form deviat
38、ion of the stylus tip will influence the measurement results and shall be considered when proving conformance or non-conformance with specifica- tions. 4.5 Operating conditions The CMM shall be operated using the procedures given in the manufacturers operating manual when conducting the tests given
39、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; e) machine start up/warm up cycles; cleaning procedures for stylus tip and reference sphere; rotary table Set-up and qualification. NOTE : The stylus t
40、ip 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 Principles The principle of the assessment method is to establish whether the CMM is
41、capable of measuring within the stated maximum permissible errors (MPEFR, MPEFT, MPEFA) by determining the variation of the measured coordinates of the centres of two test spheres mounted on the rotary table. It is noted that on a perfect four-axis CMM, the location of the measured centres of the te
42、st spheres would remain fixed in the workpiece coordinate system while the table is rotated. Each test sphere centre is determined in three directions: radial, tangential and axial. The position of each test sphere centre is represented in the workpiece coor- dinate system on a rotary table. The cen
43、tre of each test sphere, mounted on a rotary table, is measured in a se- ries of measurements with different angular positions of the rotary table. The errors of indication (FR, FT, FA) are calculated separately for each test sphere as the range between the maximum and minimum measurement results fo
44、r each of the three directions. 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 20:53:22 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 B
45、 7440-3 : 2003 (IS0 10360-3 : 2000) 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. 5.2 Measuring equipment 5.2.1 Two test spheres (A and B), wit
46、h diameters no less than 10 mm and no greater than 30 mm and with certified form. The diameters of the two test spheres, used in these tests as the corresponding input quantities, need not be calibrated since only the centres of the test spheres are used to determine the three four-axis errors. The
47、form of the test spheres must be calibrated since the form deviations influence the test results and shall be taken into account when proving conformance or non-conformance with specifications. The mounting of the test spheres should be sufficiently rigid to avoid errors due to bending especially wh
48、en the axis of the rotary table is horizontal. 5 . 3 Position the test sphere A on the rotary table as close as possible to the rotary table surface at a radius r, in accordance with table 1. Position the test sphere B approximately at the same radius, r, and approximately diametrically opposite the
49、 test sphere A at a height, Ah (see table 1 and figure 1). Define a Cartesian workpiece coordinate system on the rotary table (see figure i) conforming to the following conditions: a) the centre of test sphere B (farthest from the table surface) establishes the ori- Procedure gin; b) the primary axis which defines the axial d