1、BSI Standards PublicationBS ISO 26623-2:2014Polygonal taper interface withflange contact surfacePart 2: Dimensions and designation ofreceiversBS ISO 26623-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 26623-2:2014.It supersedes BS ISO 26623-2:2008 whic
2、h is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MTE/18, Tools tips and inserts for cutting applications.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the nec
3、essaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 81565 2ICS 25.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was
4、 published under the authority of theStandards Policy and Strategy Committee on 31 August 2014.Amendments issued since publicationDate Text affectedBS ISO 26623-2:2014 ISO 2014Polygonal taper interface with flange contact surface Part 2: Dimensions and designation of receiversInterfaces cne polygona
5、l avec face dappui Partie 2: Dimensions et dsignation des nez de brocheINTERNATIONAL STANDARDISO26623-2Second edition2014-09-01Reference numberISO 26623-2:2014(E)BS ISO 26623-2:2014ISO 26623-2:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless othe
6、rwise specified, no part of this publication may be reproduced 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
7、below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 26623-2:2014ISO 26623-2:2014(E) ISO 2014 All rights reserved iiiContents Page
8、Foreword iv1 Scope . 12 Normative references 13 Dimensions . 13.1 General . 13.2 Polygon-receivers . 14 Clamping forces . 35 Designation 3Annex A (informative) Recommendations for use and application . 4Bibliography 5BS ISO 26623-2:2014ISO 26623-2:2014(E)ForewordISO (the International Organization f
9、or 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 committee has been established has th
10、e 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 electrotechnical standardization.The proce
11、dures used to develop this document 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 editoria
12、l rules of the ISO/IEC Directives, Part 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 i
13、dentified during the development of 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 explanati
14、on on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document
15、is ISO/TC 29, Small tools.This second edition cancels and replaces the first edition (ISO 26623-2:2008), which has been technically revised.ISO 26623 consists of the following parts, under the general title Polygonal taper interface with flange contact surface: Part 1: Dimensions and designation of
16、shanks Part 2: Dimensions and designation of receiversiv ISO 2014 All rights reservedBS ISO 26623-2:2014INTERNATIONAL STANDARD ISO 26623-2:2014(E)Polygonal taper interface with flange contact surface Part 2: Dimensions and designation of receivers1 ScopeThis part of ISO 26623 specifies dimensions fo
17、r polygonal taper interfaces with flange contact surface, polygon-receivers for automatic and manual tool exchange to be applied on machine tools (e. g. turning machines, drilling machines, milling machines, and turn/milling centres as well as grinding machines). A range of receiver sizes is specifi
18、ed.The torque is transmitted by form lock (polygon).2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable to its application. For dated references, only the edition cited applies. For undated references, the latest editi
19、on of the referenced document (including any amendments) applies.ISO 2768-1, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indicationsISO 2768-2, General tolerances Part 2: Geometrical tolerances for features without individual tolerance indicat
20、ionsISO 26623-1, Polygonal taper interface with flange contact surface Part 1: Dimensions and designation of shanks3 Dimensions3.1 GeneralTolerances for linear dimensions for features without individual tolerance indications shall be of tolerance class “m” in accordance with ISO 2768-1 and geometric
21、al tolerances for features without individual tolerance indications shall be of tolerance class “K” in accordance with ISO 2768-2.3.2 Polygon-receiversThe dimensions of polygon-receivers shall be as specified in Figures 1, in Table 1, and according to ISO 26623-1. ISO 2014 All rights reserved 1BS IS
22、O 26623-2:2014ISO 26623-2:2014(E)Surface roughness in micrometres Dimensions in millimetresaForm of profile from actual ground curve = +0 0050 015,(sectioned areas).bThe theoretical polygon curve.cThe actual ground curve.dValid for size 80X only.ePolygon curve.fPosition pin. The style of the positio
23、n pin may have a different design from this drawing. In some cases, the position pin may be omitted.gGauge linexaxis for theoretical polygon curve.Figure 1 Polygon-receivers2 ISO 2014 All rights reservedBS ISO 26623-2:2014ISO 26623-2:2014(E)Table 1 Polygon-receivers DimensionsDimensions in millimetr
24、esNominal size 32 40 50 63 80 80X 100d1min 32 40 50 63 80 100 100d225,2 31,6 39,2 48,5 60,8 60,8 79,4d32 2,5 3 4 5 5 6Dm22 28 35 44 55 55 72e 0,7 0,9 1,12 1,4 2 2 2,8l12,3 2,3 2,8 2,8 2,8 2,8 2,8l2 0,1 18,4 23,4 29,4 37,4 47,4 47,4 59,4l3 0,2 16,5 21 26 33,5 43 43 52,5l49,4 0,1 11,5 0,2 14,5 0,2 18,
25、5 0,2 22,8 0,2 22,8 0,2 29,6l5 0,1 1 1 1,4 1,4 1,4 1,4 1,34 Clamping forcesThe clamping system shall provide sufficient clamping force to ensure contact of the shank flange with the face of the receiver, as well as seating the taper by elastic deformation. The torque transmitting capacity of the int
26、erface is substantially determined by the size of the clamping force.A guide to clamping forces for polygon-receivers is given in Annex A.5 DesignationA polygon-receiver in accordance with this part of ISO 26623 shall be designated by:a) “POLYGON-RECEIVER”;b) reference to this part of ISO 26623, i.e
27、. ISO 26623-2:2014;c) designation symbols PSC;d) nominal size, in millimetres.EXAMPLE Designation of a polygon-receiver for automatic and manual tool exchange with nominal size 32 mm:POLYGON-RECEIVER ISO 26623-2 PSC 32 ISO 2014 All rights reserved 3BS ISO 26623-2:2014ISO 26623-2:2014(E)Annex A (info
28、rmative) Recommendations for use and applicationA.1 Clamping systemThe clamping system should be specified by the manufacturer of the receiver or machine tool spindle. The system should provide sufficient clamping force to ensure contact of the shank flange with the receiver face, as well as seating
29、 the taper by elastic deformation.A.2 Clamping forcesVariations of taper shank and -receiver size within the specified limits of tolerance will cause the portion of the clamping force acting on the flange surface to vary. However, the clamping forces given in Table A.1 will ensure that the portion o
30、f acting on the flange surface is never less than 80 % of the total. The flange contact is decisive for the stiffness of the polygonal taper interface.Table A.1 Clamping forceNominal size, mm 32 40 50 63 80 80X 100Clamping force, kN 15 20 25 30 40 40 60Lower clamping forces can be sufficient when op
31、erational loads are low (e.g. cutting forces in finish machining). Conversely, higher clamping forces can be required when high operational loads are encountered (e.g. cutting and feed forces in heavy machining).A.3 Information about speeds, torques, bending loads and stiffnessThe manufacturer shoul
32、d provide information regarding permissible speeds, torque transmitting capacities.4 ISO 2014 All rights reservedBS ISO 26623-2:2014ISO 26623-2:2014(E)Bibliography1 ISO 1101, Geometrical Product Specifications (GPS) Geometrical tolerancing Tolerances of form, orientation, location and run-out ISO 20
33、14 All rights reserved 5BS ISO 26623-2:2014ISO 26623-2:2014(E) ISO 2014 All rights reservedICS 25.060.20Price based on 5 pagesThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI i
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