BS ISO 15786-2009 Technical drawings - Simplified representation and dimensioning of holes《技术制图 孔洞的简化表示法和尺寸规格》.pdf
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1、BS ISO15786:2008ICS 01.100.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDTechnical drawings Simplifiedrepresentation anddimensioning of holesThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 May 2009 BSI
2、 2009ISBN 978 0 580 53497 3Amendments/corrigenda issued since publicationDate CommentsBS ISO 15786:2008National forewordThis British Standard is the UK implementation of ISO 15786:2008.The UK participation in its preparation was entrusted to TechnicalCommittee TDW/4, Technical product realization (T
3、PR).A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom
4、 legal obligations.BS ISO 15786:2008Reference numberISO 15786:2008(E)ISO 2008INTERNATIONAL STANDARD ISO15786First edition2008-10-01Technical drawings Simplified representation and dimensioning of holesDessins techniques Reprsentation et cotation simplifies des trous BS ISO 15786:2008ISO 15786:2008(E
5、) 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 to and installed on the computer performing the editing. In downloading this file
6、, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info rel
7、ative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable 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. COPY
8、RIGHT PROTECTED DOCUMENT ISO 2008 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 and microfilm, without permission in writing from either ISO at the address below
9、 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 ii ISO 2008 All rights reservedBS ISO 15786:2008ISO 15786:2008(E) ISO 2008 All ri
10、ghts reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Methods of representation and dimensioning of holes 2 4.1 Complete representation and complete dimensioning of holes 2 4.2 Complete representation and simplified dimensioning
11、 of holes. 2 4.3 Simplified representation and simplified dimensioning of holes 2 4.4 Representation of holes on the same drawing 2 5 Structure of dimensioning of holes 3 5.1 Structure and sequence of descriptive elements for simplified dimensioning of holes 3 5.2 Graphical symbols 4 5.3 Number of g
12、roups of holes and number of holes in a group. 6 5.4 Indication of tolerances 7 5.5 Hole bottom . 7 5.6 Countersinks and chamfers 7 5.7 Depth dimensions. 8 5.8 Indication of surface texture 10 5.9 Indication of dimensions on geometrical tolerances 12 Annex A (informative) Examples for representation
13、 and dimensioning of holes, counterbores and internal threads . 13 Bibliography . 18 BS ISO 15786:2008ISO 15786:2008(E) iv ISO 2008 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The wor
14、k 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. International organizations, governmental and non-governme
15、ntal, 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 the rules given in the ISO/IEC Directives, Part 2. The m
16、ain task of technical committees is to prepare International Standards. 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. A
17、ttention 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 identifying any or all such patent rights. ISO 15786 was prepared by Technical Committee ISO/TC 10, Technical product documentation, Subcommittee
18、 SC 6, Mechanical engineering documentation. BS ISO 15786:2008ISO 15786:2008(E) ISO 2008 All rights reserved vIntroduction This International Standard has been established to specify the simplified representation and dimensioning of holes. The rules established by this International Standard determi
19、ne, unambiguously, methods for the representation both complete and simplified and the dimensioning of holes, as well as the structure and sequence of the descriptive elements for the simplified representation of holes. BS ISO 15786:2008BS ISO 15786:2008INTERNATIONAL STANDARD ISO 15786:2008(E) ISO 2
20、008 All rights reserved 1Technical drawings Simplified representation and dimensioning of holes 1 Scope This International Standard specifies rules for the simplified representation, dimensioning and tolerancing of holes, counterbores, internal threads and chamfers on drawings. Where there could be
21、misinterpretation using simplified representation, the complete representation and dimensioning by cuts, sections or elements on a larger scale apply, according to ISO 128-30, ISO 128-34, ISO 128-40, ISO 128-44, ISO 128-50, ISO 129-1 and ISO 406. 2 Normative references The following referenced docum
22、ents 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) applies. ISO 128-22, Technical drawings General principles of presentation Part 22: Basi
23、c conventions and applications for leader lines and reference lines ISO 128-30, Technical drawings General principles of presentation Part 30: Basic conventions for views ISO 128-34, Technical drawings General principles of presentation Part 34: Views on mechanical engineering drawings ISO 128-40, T
24、echnical drawings General principles of presentation Part 40: Basic conventions for cuts and sections ISO 128-44, Technical drawings General principles of presentation Part 44: Sections on mechanical engineering drawings ISO 128-50, Technical drawings General principles of presentation Part 50: Basi
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