ISO-8636-2-2007.pdf
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1、 Reference number ISO 8636-2:2007(E) ISO 2007 INTERNATIONAL STANDARD ISO 8636-2 Second edition 2007-12-15 Machine tools Test conditions for bridge-type milling machines Testing of the accuracy Part 2: Travelling bridge (gantry-type) machines Machines-outils Conditions dessai des machines fraiser por
2、tique Contrle de lexactitude Partie 2: Machines portique mobile ISO 8636-2:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed
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5、 is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying
6、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 copyrightiso.org Web www.iso.org Published in Switzerland
7、ii ISO 2007 All rights reserved ISO 8636-2:2007(E) ISO 2007 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Classification and description of travelling bridge (gantry-type) milling machines . 2 4.1 Classification. 2 4.2 Descriptio
8、ns of principal components. 2 5 Terminology and designation of axes 3 5.1 Terminology 3 5.2 Designation of axes 3 6 Preliminary remarks . 6 6.1 Measuring units 6 6.2 Reference to ISO 230-1. 6 6.3 Temperature conditions. 6 6.4 Testing sequence 8 6.5 Tests to be performed 8 6.6 Measuring instruments 8
9、 6.7 Minimum tolerance. 8 6.8 Machining tests. 8 6.9 Positioning tests. 8 7 Geometric tests. 8 7.1 Axes of motion 9 7.2 Table. 17 7.3 Milling head. 20 7.4 Swivelling milling head 23 7.5 Horizontal milling head (side milling head) . 24 8 Machining tests. 27 8.1 Flatness of test pieces by slab milling
10、. 27 8.2 Milling of lateral face 28 9 Accuracy and repeatability of positioning of numerical control axes 29 9.1 Linear axes 29 9.2 Rotary axes 35 10 Geometric accuracy of axes of rotation of toolholding spindles 36 Bibliography. 38 -,-,- ISO 8636-2:2007(E) iv ISO 2007 All rights reserved Foreword I
11、SO (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 technical c
12、ommittee 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 of electr
13、otechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the m
14、ember 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 the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identi
15、fying any or all such patent rights. ISO 8636-2 was prepared by Technical Committee ISO/TC 39, Machine tools, Subcommittee SC 2, Test conditions for metal cutting machine tools. This second edition cancels and replaces the first edition (ISO 8636-2:1988) which has been technically revised. Especiall
16、y, a) geometrical tests have been rearranged; the new G numbers compared to the old ones are given in the following table: ISO 8636-2:2007 1 2(add) 3 4(add) 5 6 7 8 9 10 11 12 ISO 8636-2:1988 2 8 10 9 6 5 1 4 c) tolerances on accuracy and repeatability of positioning have been changed in accordance
17、with ISO 230-2:2006; d) new test for geometric accuracy of axes of rotation of workholding spindles (R1) has been added. The actual deviations of all parameters are shown as test results, but the tolerances are limited only to certain parameters. ISO 8636 consists of the following parts, under the g
18、eneral title Machine tools Test conditions for bridge-type milling machines Testing of the accuracy: Part 1: Fixed bridge (portal-type) machines Part 2: Travelling bridge (gantry-type) machines -,-,- INTERNATIONAL STANDARD ISO 8636-2:2007(E) ISO 2007 All rights reserved 1 Machine tools Test conditio
19、ns for bridge-type milling machines Testing of the accuracy Part 2: Travelling bridge (gantry-type) machines 1 Scope This part of ISO 8636 specifies, with reference to ISO 230-1, ISO 230-2, and ISO 230-7, geometric tests, machining tests, and tests for checking accuracy and repeatability of position
20、ing of numerically controlled axes for general-purpose normal accuracy bridge-type milling machines with a travelling bridge (gantry-type). This part of ISO 8636 also specifies the applicable tolerances corresponding to the above-mentioned tests. This part of ISO 8636 is applicable to machines with
21、travelling bridge and fixed table. It does not include single-column (open sided) machines and those with fixed bridge and moving tables. This part of ISO 8636 deals only with the verification of the accuracy of the machine. It does not apply to the testing of the machine operation (vibration, abnor
22、mal noise, stick-slip motion of components, etc.) nor to machine characteristics (such as speeds, feeds, etc.), which should generally be checked before testing the accuracy. This part of ISO 8636 provides the terminology used for the principal components of the machines and the designation of the a
23、xes with reference to ISO 841. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) appl
24、ies. ISO 230-1:1996, Test code for machine tools Part 1: Geometric accuracy of machines operating under no-load or finishing conditions ISO 230-2:2006, Test code for machine tools Part 2: Determination of accuracy and repeatability of positioning numerically controlled axes ISO 230-7:2006, Test code
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