BS ISO 20168-2016 Resistance welding Locking tapers for electrode holders and electrode caps《电阻焊 电极夹和电极帽用锁紧锥》.pdf

《BS ISO 20168-2016 Resistance welding Locking tapers for electrode holders and electrode caps《电阻焊 电极夹和电极帽用锁紧锥》.pdf》由会员分享，可在线阅读，更多相关《BS ISO 20168-2016 Resistance welding Locking tapers for electrode holders and electrode caps《电阻焊 电极夹和电极帽用锁紧锥》.pdf（14页珍藏版）》请在麦多课文档分享上搜索。

1、BS ISO 20168:2016Resistance welding Lockingtapers for electrode holdersand electrode capsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 20168:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 20168:2016.The UK partici

2、pation in its preparation was entrusted to TechnicalCommittee WEE/29, Resistance welding.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for

3、its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 92326 5ICS 25.160.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and

4、Strategy Committee on 30 September 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 20168:2016 ISO 2016Resistance welding Locking tapers for electrode holders and electrode capsSoudage par rsistance Cnes de serrage pour porte-lectrodes et pointes dlectrodesINTERN

5、ATIONAL STANDARDISO20168First edition2016-09-01Reference numberISO 20168:2016(E)BS ISO 20168:2016ISO 20168:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduc

6、ed or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.IS

7、O copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 20168:2016ISO 20168:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Dimensions and tolerances . 24.1 General .

8、24.2 Electrode holders 24.3 Electrode caps 25 Designation 35.1 Electrode holders 35.2 Electrode caps 36 Material 37 Marking 3Bibliography 4 ISO 2016 All rights reserved iiiContents PageBS ISO 20168:2016ISO 20168:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide f

9、ederation 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 committee has been established has the right to be represented on that co

10、mmittee. 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 electrotechnical standardization.The procedures used to develop this document

11、and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, P

12、art 2 (see www.iso.org/directives).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 identifying any or all such patent rights. Details of any patent rights identified during the development of

13、the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific te

14、rms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 44, W

15、elding and allied processes, Subcommittee SC 6, Resistance welding and allied mechanical joining.Requests for official interpretations of any aspect of this document should be directed to the Secretariat of ISO/TC 44/SC 6 via your national standards body. A complete listing of these bodies can be fo

16、und at www.iso.org.iv ISO 2016 All rights reservedBS ISO 20168:2016INTERNATIONAL STANDARD ISO 20168:2016(E)Resistance welding Locking tapers for electrode holders and electrode caps1 ScopeThis document specifies the dimensions and tolerances for electrode holders and of spot welding electrode caps,

17、where a locking taper is used.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the r

18、eferenced document (including any amendments) applies.ISO 5182, Resistance welding Materials for electrodes and ancillary equipmentISO 5821, Resistance welding Spot welding electrode caps3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 17677-1 and the

19、following apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp3.1locking tapertaper allowing for a tight fit between an el

20、ectrode holder and the electrode cap as their taper angles differ by 0 2 60, ensuring the electrode cap engagement point is at the skirt of the cap and electrode holderNote 1 to entry: See Figure 1.Note 2 to entry: Traditionally called “Fisher taper”.Note 3 to entry: During welding, the electrode ca

21、p tightens further on the electrode holder.a) Locking taper b) Detailed viewFigure 1 Principle of a locking taper ISO 2016 All rights reserved 1BS ISO 20168:2016ISO 20168:2016(E)4 Dimensions and tolerances4.1 GeneralTable 1 gives the dimensions for three typically used electrode cap and holder sizes

22、: 13 mm, 16 mm and 20 mm.The taper angles of electrode caps and holders are to be verified by the use of certified ring gauges and plugs.4.2 Electrode holdersThe taper of the electrode holders shall be 2 58 54 in accordance with Figure 2.4.3 Electrode capsThe taper of the electrode caps shall be 2 5

23、6 53 in accordance with Figure 2.Keyl1electrode cap locking taper length d1outside diameter of electrode capl2electrode holder locking taper length d2inside diameter of electrode cap (at base of locking taper)l3total length of electrode holder taper d3diameter of electrode holder at base of locking

24、taperFigure 2 Dimensions for electrode holder and electrode cap with locking taper2 ISO 2016 All rights reservedBS ISO 20168:2016ISO 20168:2016(E)Table 1 Tolerances for the dimensions for electrode holders and electrode caps with locking tapersDimensions in millimetresd1d2d3l1l2l3Nominal size of ele

25、ctrode cap and holder+0050, 0005 ,+050, +050, +050,13 10,01 10,21 8,81 8,84 10,3616 12,56 12,75 9,63 9,65 11,1820 15,88 16,08 10,69 10,19 11,715 Designation5.1 Electrode holdersElectrode holders shall be designated in accordance with this document and nominal diameter, d1.EXAMPLE A spot welding elec

26、trode holder, with nominal diameter 20 mm is designated as follows:ISO 20168:2016 - 205.2 Electrode capsElectrode caps shall be designated in accordance with ISO 5821, except the number of this document shall be used to indicate that the cap has a locking taper.EXAMPLE A spot welding electrode cap t

27、ype B0, width d1= 16 mm, length l1= 20 mm, d2= 8 mm and a = 45, is designated as follows:ISO 20168:2016-B0 - 16 - 20 - 8 - 456 MaterialThe materials used shall be in accordance with ISO 5182.7 MarkingThe packaging shall be marked with the full designation and material used. ISO 2016 All rights reser

28、ved 3BS ISO 20168:2016ISO 20168:2016(E)Bibliography1 ISO 286-2, Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts2 ISO 1119, Geometrical product specifications (GPS) Series of

29、 conical tapers and taper angles3 ISO 5822, Spot welding equipment Taper plug gauges and taper ring gauges4 ISO 17677-1, Resistance welding Vocabulary Part 1: Spot, projection and seam welding4 ISO 2016 All rights reservedBS ISO 20168:2016BS ISO 20168:2016ISO 20168:2016(E) ISO 2016 All rights reserv

30、edICS 25.160.20Price based on 4 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and other standardization products are

31、 published by BSI Standards Limited.British Standards Institution (BSI)About usWe bring together business, industry, government, consumers, innovators and others to shape their combined experience and expertise into standards -based solutions.The knowledge embodied in our standards has been carefull

32、y assembled in a dependable format and refined through our open consultation process. Organizations of all sizes and across all sectors choose standards to help them achieve their goals.Information on standardsWe can provide you with the knowledge that your organization needs to succeed. Find out mo

33、re about British Standards by visiting our website at or contacting our Customer Services team or Knowledge Centre.Buying standardsYou can buy and download PDF versions of BSI publications, including British and adopted European and international standards, through our website at where hard copies

34、 can also be purchased. If you need international and foreign standards from other Standards Development Organizations, hard copies can be ordered from our Customer Services team.Copyright in BSI publicationsAll the content in BSI publications, including British Standards, is the property of and cop

35、yrighted by BSI or some person or entity that owns copyright in the information used (such as the international standardization bodies) and has formally licensed such information to BSI for commercial publication and use.Save for the provisions below, you may not transfer, share or disseminate any p

36、ortion of the standard to any other person. You may not adapt, distribute, commercially exploit, or publicly display the standard or any portion thereof in any manner whatsoever without BSIs prior written consent.Storing and using standardsStandards purchased in soft copy format: A British Standard

37、purchased in soft copy format is licensed to a sole named user for personal or internal company use only. The standard may be stored on more than 1 device provided that it is accessible by the sole named user only and that only 1 copy is accessed at any one time. A single paper copy may be printed f

38、or personal or internal company use only.Standards purchased in hard copy format: A British Standard purchased in hard copy format is for personal or internal company use only. It may not be further reproduced in any format to create an additional copy. This includes scanning of the document.If you

39、need more than 1 copy of the document, or if you wish to share the document on an internal network, you can save money by choosing a subscription product (see Subscriptions).Reproducing extractsFor permission to reproduce content from BSI publications contact the BSI Copyright & Licensing team.Subsc

40、riptionsOur range of subscription services are designed to make using standards easier for you. For further information on our subscription products go to British Standards Online (BSOL) youll have instant access to over 55,000 British and adopted European and international standards from your desk

41、top. Its available 24/7 and is refreshed daily so youll always be up to date. You can keep in touch with standards developments and receive substantial discounts on the purchase price of standards, both in single copy and subscription format, by becoming a BSI Subscribing Member. PLUS is an updating

42、 service exclusive to BSI Subscribing Members. You will automatically receive the latest hard copy of your standards when theyre revised or replaced. To find out more about becoming a BSI Subscribing Member and the benefits of membership, please visit a Multi-User Network Licence (MUNL) you are abl

43、e to host standards publications on your intranet. Licences can cover as few or as many users as you wish. With updates supplied as soon as theyre available, you can be sure your documentation is current. For further information, email .RevisionsOur British Standards and other publications are updat

44、ed by amendment or revision. We continually improve the quality of our products and services to benefit your business. If you find an inaccuracy or ambiguity within a British Standard or other BSI publication please inform the Knowledge Centre.Useful ContactsCustomer ServicesTel: +44 345 086 9001Ema

45、il (orders): Email (enquiries): SubscriptionsTel: +44 345 086 9001Email: Knowledge CentreTel: +44 20 8996 7004Email: Copyright & LicensingTel: +44 20 8996 7070Email: NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Group Headquarters389 Chiswick High Road London W4 4AL UKBSI Back Cover.indd 1 27/01/2016 14:20