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1、BRITISH STANDARD BS ISO 10791-2:2001 Test conditions for machining centres Part 2: Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis) ICS 25.080. NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Cop
2、y: sheffieldun sheffieldun, na, Sun Nov 26 08:23:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 10791-2:2001 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect o
3、n 15 May 2001 BSI 05-2001 ISBN 0 580 37274 X National foreword This British Standard reproduces verbatim ISO 10791-2:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee MTE/1, Machine tools, which has the responsibility to:
4、 A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Sta
5、ndards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Stan
6、dard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and Europe
7、an developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 41 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued
8、. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:23:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 10791-2:2001(E) INTERNATIONAL STANDARD ISO 10791-2 First edition 2001-03-01 Test conditions for machining centre
9、s Part 2: Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis) Conditions dessai des centres dusinage Partie 2: Essais gomtriques des machines broche verticale ou ttes universelles axe principal de rotation vertical (axe Z vertical
10、) Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:23:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 10791-2:2001(E) ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:23:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 10791-2:2001(E) iii ContentsPage Foreword.iv Introduction
11、.v 1Scope 1 2Normative references1 3Preliminary remarks 2 3.1Measuring units .2 3.2Reference to ISO 230-12 3.3Testing sequence.2 3.4Tests to be performed.2 3.5Measuring instruments .2 3.6Diagrams.2 3.7Pallets .2 3.8Software compensation 3 3.9Machine configurations 3 3.10Designation 3 3.11Minimum tol
12、erance3 4Geometric tests6 4.1Straightness of linear motions.6 4.2Angular deviations of linear motions 9 4.3Squareness between linear motions .12 4.4Spindle15 4.5Table or pallet.20 4.6Supplementary axis (W-axis) parallel to the Z-axis24 Annex A (normative) Optional horizontal spindles .26 Annex B (no
13、rmative) Rotary heads.32 Annex C (normative) Swivel heads .34 Bibliography41 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:23:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 10791-2:2001(E) iv Foreword ISO (the International Organization for Standardization) is a worldwide federation o
14、f national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. In
15、ternational organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with
16、the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to
17、the possibility that some of the elements of this part of ISO 10791 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. InternationalStandardISO 10791-2waspreparedbyTechnicalCommitteeISO/TC 39,Machinetools, Subcommittee SC 2, Test con
18、ditions for metal cutting machine tools. ISO 10791 consists of the following parts, under the general title Test conditions for machining centres: ?Part 1: Geometric tests for machines with horizontal spindle and with accessory heads (horizontal Z-axis) ?Part 2: Geometric tests for machines with ver
19、tical spindle or universal heads with vertical primary rotary axis (vertical Z-axis) ?Part 3: Geometric tests for machines with integral indexable or continuous universal heads (vertical Z-axis) ?Part 4: Accuracy and repeatability of positioning of linear and rotary axes ?Part 5: Accuracy and repeat
20、ability of positioning of work-holding pallets ?Part 6: Accuracy of feeds, speeds and interpolations ?Part 7: Accuracy of a finished test piece ?Part 8: Evaluation of the contouring performance in the three coordinate planes ?Part 9: Evaluation of the operating times of tool change and pallet change
21、 ?Part 10: Evaluation of the thermal distortions ?Part 11: Evaluation of the noise emission Annexes A, B and C form a normative part of this part of ISO 10791. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:23:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 10791-2:2001(E) v Introductio
22、n A machining centre is a numerically controlled machine tool capable of performing multiple machining operations, including milling, boring, drilling and tapping, as well as automatic tool changing from a magazine or similar storage unit in accordance with a machining programme. The purpose of ISO
23、10791 is to supply information as wide and comprehensive as possible on tests and checks which can be carried out for comparison, acceptance, maintenance or any other purpose. ISO 10791 specifies, by reference to the relevant parts of ISO 230, Test code for machine tools, several families of tests f
24、or machining centres with horizontal or vertical spindle or with universal heads of different types, standing alone or integrated in flexible manufacturing systems. ISO 10791 also establishes the tolerances or maximum acceptable values for the test results corresponding to general purpose and normal
25、 accuracy machining centres. ISO 10791 is also applicable, totally or partially, to numerically controlled milling and boring machines, when their configuration, components and movements are compatible with the tests described herein. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:23:18 G
26、MT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:23:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARDISO 10791-2:2001(E) 1 Test conditions for machining centres Part 2: Geometric tests for machines with vertical spindle or univers
27、al heads with vertical primary rotary axis (vertical Z-axis) 1Scope This part of ISO 10791 specifies, with reference to ISO 230-1, the geometric tests for machining centres (or numerically controlled milling machines, boring machines, etc., where applicable) with vertical spindle (that is vertical Z
28、-axis). This part of ISO 10791 applies to machining centres having basically three numerically controlled axes, that is three linear axes (X, Y and Z) of up to 2 000 mm length, but also refers to supplementary motions, such as rotary axes (A?, B?and C?), those of rams, quill, or universal heads. Mot
29、ions other than those mentioned are considered as special features and the relevant tests are not included in this part of ISO 10791. This part of ISO 10791 describes geometric tests for optional horizontal spindles as well as for two possible types of universal heads in the following annexes: ?anne
30、x A: optional horizontal spindles (tests AG1 to AG6); ?annex B: rotary heads, with one numerically controlled rotary axis (tests BG1 and BG2); ?annex C: swivel heads, with two numerically controlled rotary axes perpendicular to each other (tests CG1 to CG7). This part of ISO 10791 deals only with th
31、e verification of the accuracy of the machine. It does not apply to the testing of the machine operation, which should be checked separately. Some tests concerning the performance of the machine operating under no-load or finishing conditions are included in other parts of ISO 10791. 2Normative refe
32、rences The following normative documents contain provisions, which, through reference in this text, constitute provisions of this part of ISO 10791. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this p
33、art of ISO 10791 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid Inter
34、national Standards. ISO 230-1:1996, Test code for machine tools Part 1: Geometric accuracy of machines operating under no-load or finishing conditions. ISO 8526-1:1990, Modular units for machine tools Workholding pallets Part 1: Workholding pallets up to 800 mm nominal size. ISO 8526-2:1990, Modular
35、 units for machine tools Workholding pallets Part 2: Workholding pallets of nominal size greater than 800 mm. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:23:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 10791-2:2001(E) 2 3Preliminary remarks 3.1Measuring units In this part of ISO 1
36、0791, all linear dimensions, deviations and corresponding tolerances are expressed in millimetres; angular dimensions are expressed in degrees, and angular deviations and the corresponding tolerances are expressed in ratios, but, in some cases for the sake of clarity, microradians or arcseconds are
37、used. The equivalence of the following expressions should always be kept in mind: 0,010/1 000 = 10?rad?2? 3.2Reference to ISO 230-1 To apply this part of ISO 10791, reference shall be made to ISO 230-1, especially for the installation of the machine before testing, warming up of the spindle and othe
38、r moving components, description of measuring methods and recommended accuracy of testing equipment. When the operation concerned is in accordance with the specifications of ISO 230-1, the instructions in the “Observations” box of the operations described in clause 4 and annexes A to C are followed
39、by a reference to the corresponding paragraph in ISO 230-1. 3.3Testing sequence The sequence in which the tests are presented in this part of ISO 10791 in no way defines the practical order of testing. With a view to making the mounting of instruments or gauging easier, tests may be performed in any
40、 order. 3.4Tests to be performed When testing a machine, it is not always necessary or possible to carry out all the tests described in this part of ISO 10791. When the tests are required for acceptance purposes, it is up to the user to choose, in agreement with the supplier/manufacturer, those test
41、s relating to the components and/or the properties of the machine which are of interest. These tests shall be clearly stated when ordering a machine. The mere reference to this part of ISO 10791 for the acceptance tests, without specifying the tests to be carried out and without agreement on the rel
42、evant expenses, cannot be considered as binding for any of the contracting parties. 3.5Measuring instruments The measuring instruments indicated in the tests described in clause 4 and annexes A to C are examples only. Other instruments measuring the same quantities and having at least the same accur
43、acy may be used. Dial gauges shall have a resolution of at least 0,001 millimetres. 3.6Diagrams For reasons of simplicity, the diagrams in this part of ISO 10791 illustrate only a few types of machines. 3.7Pallets For the machines working with several pallets, the tests concerning the intrinsic geom
44、etric features or their behaviour related to the axes of the machine (tests G15 to G20) shall be performed on only one representative pallet clamped in position, unless otherwise specified by a written agreement between the user and the supplier/manufacturer. Licensed Copy: sheffieldun sheffieldun,
45、na, Sun Nov 26 08:23:18 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 10791-2:2001(E) 3 3.8Software compensation When software facilities are available for compensating some geometric deviations, based on an agreement between the user and the supplier/manufacturer, the relevant tests may be carried
46、 out with or without these compensations. When the software compensations are used, this shall be stated in the test results. 3.9Machine configurations The machines considered in this part of ISO 10791 are divided into 12 families based on their architecture and the components moving along the linea
47、r axes. These families are identified by means of numbers from 01 to 12, as shown in Figure 1. The classification for these families is shown in Table 11). 3.10 Designation A designation is also supplied in order to define the architecture of a machining centre, using a short code; this designation
48、is given by the following elements, in the given order: a)“Machining centre”; b)the reference to this part of ISO 10791, that is ISO 10791-2; c)the letter V for “vertical spindle”; d)the number indicated in the relevant box of Figure 1 and the left-hand column of Table 1. EXAMPLEA machining centre,
49、vertical spindle type, with the table moving along the X-axis, the column moving along the Y-axis and the spindle head moving along the Z-axis is designated as follows: Machining centre ISO 10791-2 type V07 3.11 Minimum tolerance When establishing the tolerance for a measuring length different from that given in this part of ISO 10791 (see 2.311 of ISO 230-1:1996), it shall be taken into consideration that the minimum value of tolerance is 0,005 mm. 1)Some vertical machining centres are built with an architecture similar to type V10 (portal type) or V11 (gantr
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