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1、Reference number ISO 10791-2:2001(E) ISO 2001 INTERNATIONAL STANDARD ISO 10791-2 First edition 2001-03-01 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) Conditions dessai des cent
2、res dusinage Partie 2: Essais gomtriques des machines broche verticale ou ttes universelles axe principal de rotation vertical (axe Z vertical) ISO 10791-2:2001(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or vie
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5、for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2001 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any mean
6、s, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 ? CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copy
7、rightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 2001 All rights reserved ISO 10791-2:2001(E) ISO 2001 All rights reservediii ContentsPage Foreword.iv Introduction.v 1Scope 1 2Normative references1 3Preliminary remarks 2 3.1Measuring units .2 3.2Reference to ISO 230-12 3.3Testing sequence.2
8、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 tolerance3 4Geometric tests6 4.1Straightness of linear motions.6 4.2Angular deviations of linear motions 9 4.3Squareness between lin
9、ear 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 (normative) Rotary heads.32 Annex C (normative) Swivel heads .34 Bibliography41 ISO 10791-2:2001(E) iv ISO 2001 All rights reserved
10、Foreword ISO (the International Organization for Standardization) is a worldwide federation of 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 t
11、echnical committee has been established has the right to be represented on that committee. International 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
12、 of electrotechnical standardization. International Standards are drafted in accordance with 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 r
13、equires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to 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. InternationalStandard
14、ISO 10791-2waspreparedbyTechnicalCommitteeISO/TC 39,Machinetools, Subcommittee SC 2, Test conditions 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 spindl
15、e and with accessory heads (horizontal Z-axis) ?Part 2: Geometric tests for machines with vertical 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: Acc
16、uracy and repeatability of positioning of linear and rotary axes ?Part 5: Accuracy and repeatability 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
17、coordinate planes ?Part 9: Evaluation of the operating times of tool change and pallet change ?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. ISO 10791-2:2001(E) ISO 2001 All rights reserve
18、dv Introduction 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 p
19、urpose of ISO 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 famil
20、ies of tests for 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 purp
21、ose and normal 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. INTERNATIONAL STANDARDISO 10791-2:2001(E) ISO 2001
22、All rights reserved1 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) 1Scope This part of ISO 10791 specifies, with reference to ISO 230-1, the geometric tests for machining centres
23、 (or numerically controlled milling machines, boring machines, etc., where applicable) with vertical spindle (that is vertical Z-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 len
24、gth, but also refers to supplementary motions, such as rotary axes (A?, B?and C?), those of rams, quill, or universal heads. Motions 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 geome
25、tric tests for optional horizontal spindles as well as for two possible types of universal heads in the following annexes: ?annex 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
26、two numerically controlled rotary axes perpendicular to each other (tests CG1 to CG7). This part of ISO 10791 deals only with the 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 perf
27、ormance of the machine operating under no-load or finishing conditions are included in other parts of ISO 10791. 2Normative references The following normative documents contain provisions, which, through reference in this text, constitute provisions of this part of ISO 10791. For dated references, s
28、ubsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part 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
29、latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International 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, Mod
30、ular units for machine tools Workholding pallets Part 1: Workholding pallets up to 800 mm nominal size. ISO 8526-2:1990, Modular units for machine tools Workholding pallets Part 2: Workholding pallets of nominal size greater than 800 mm. ISO 10791-2:2001(E) 2 ISO 2001 All rights reserved 3Preliminar
31、y remarks 3.1Measuring units In this part of ISO 10791, 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 th
32、e sake of clarity, microradians or arcseconds are 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
33、before testing, warming up of the spindle and other 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 desc
34、ribed in clause 4 and annexes A to C are followed 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 instrument
35、s or gauging easier, tests may be performed in any 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 ag
36、reement with the supplier/manufacturer, those tests 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
37、to be carried out and without agreement on the relevant 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
38、same quantities and having at least the same accuracy 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 severa
39、l pallets, the tests concerning the intrinsic geometric 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/manu
40、facturer. ISO 10791-2:2001(E) ISO 2001 All rights reserved3 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 out with or without these co
41、mpensations. 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 linear axes. These families are id
42、entified 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 is given by the following ele
43、ments, 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, vertical spindle type, with t
44、he 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 IS
45、O 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 (gantry type) but with only one column. This part of ISO 10791 is app
46、licable to them as well. In this case, and when necessary, the text should be modified by replacing the terms “portal” or “gantry” with “column”, and “cross rail” with “arm”. -,-,- ISO 10791-2:2001(E) 4 ISO 2001 All rights reserved 010203 040506 070809 101112 Figure 1 ISO 10791-2:2001(E) ISO 2001 Al
47、l rights reserved5 Table 1 Classification of configurations of vertical spindle machining centres XX? ? ? ?YY? ? ? ?ZZ? ? ? ? 01Table on its saddle Table saddle on the bed Spindle head on the column 02Column on the bed Table on the bed Spindle head on the column 03Table on its saddle Table saddle on
48、 the knee Knee on the column 04Table saddle on the bed Table on its saddle Spindle head on the column 05Column on its saddle Column saddle on the bed Spindle head on the column 06Knee on its saddle Spindle head on the column Knee saddle on the column 07Table on the bed Column on the bed Spindle head
49、 on the column 08Column saddle on the bed Column on its saddle Spindle head on the column 09Knee saddle on the column Spindle head on the column Knee on its saddle 10Table on the bed Spindle head slide on the cross rail Spindle head on its slide 11Gantry on the bed Spindle head slide on the cross rail Spindle head on its slide 12Spindle head slide on the column Spindle head on its slide Knee on the column ISO 10791-2:2001(E) 6 ISO 2001 All rights reserved 4Geometric tests 4.1Straig