1、BSI Standards PublicationBS EN ISO 3040:2016Geometrical productspecifications (GPS) Dimensioning and tolerancing Cones (ISO 3040:2016)BS EN ISO 3040:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 3040:2016.It supersedes BS EN ISO 3040:2012 which is wit
2、hdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee TDW/4, Technical Product Realization.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 contr
3、act. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 88337 8ICS 17.040.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the author
4、ity of theStandards Policy and Strategy Committee on 31 May 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 3040 May 2016 ICS 17.040.30 Supersedes EN ISO 3040:2012English Version Geometrical product specification
5、s (GPS) - Dimensioning and tolerancing - Cones (ISO 3040:2016) Spcification gomtrique des produits (GPS) - Cotation et tolrancement - Cnes (ISO 3040:2016) Geometrische Produktspezifikation (GPS) - Maeintragung und Toleranzfestlegung - Kegel (ISO 3040:2016) This European Standard was approved by CEN
6、on 1 November 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards
7、may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notifie
8、d to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icela
9、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Managem
10、ent Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 3040:2016 EBS EN ISO 3040:2016EN ISO 3040:2016 (E) 3 European foreword This document (EN ISO 3040:2016) has been prepared by Tec
11、hnical Committee ISO/TC 213 “Dimensional and geometrical product specifications and verification“ in collaboration with Technical Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of which is held by AFNOR. This European Standard shall be given
12、 the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2016, and conflicting national standards shall be withdrawn at the latest by November 2016. Attention is drawn to the possibility that some of the elements of this document may
13、 be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 3040:2012. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to
14、 implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Ro
15、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 3040:2016 has been approved by CEN as EN ISO 3040:2016 without any modification. BS EN ISO 3040:2016ISO 3040:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 T
16、erms and definitions . 14 Graphical symbol for a rate of taper for a cone 25 Dimensions and indication on a cone . 25.1 Dimensions on a cone . 25.2 Indication of rate of taper value on drawings 46 Tolerancing of a cone . 5Annex A (informative) Tolerancing of a cone: Examples . 8Annex B (informative)
17、 Relation to the GPS matrix model .23Bibliography .24 ISO 2016 All rights reserved iiiContents PageBS EN ISO 3040:2016ISO 3040:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Int
18、ernational 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-governmental, in liaison w
19、ith 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 and those intended for its further maintenance are described in the ISO/IEC Directive
20、s, 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, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of
21、 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 the document will be in the Introduction and/or on the ISO list of patent declaration
22、s 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 terms and expressions related to conformity assessment, as well as information about IS
23、Os 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 213, Dimensional and geometrical product specifications and verification.This fourth editi
24、on cancels and replaces the third edition (ISO 3040:2009), which has been technically revised: Clause 6 on the tolerancing of cones has been revised; Annex A on former practice from ISO 3040:1990 has been deleted; a new informative Annex A with examples has been added.iv ISO 2016 All rights reserved
25、BS EN ISO 3040:2016ISO 3040:2016(E)IntroductionThis International Standard is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see ISO 14638), applicable to a conical feature. It influences chain links A and B of the chain of standards on size, form
26、, orientation, location and run-out.For more detailed information about the relationship of ISO 3040 to other standards and to the GPS matrix model, see Annex B.The ISO/GPS matrix model given in ISO 14638 gives an overview of the ISO/GPS system of which this international standard is a part. The fun
27、damental rules of ISO/GPS given in ISO 8015 apply to this international standard and the default decision rules given in ISO 14253-1 apply to specifications made in accordance with this international standard, unless otherwise indicated.In this International Standard, the figures illustrate the text
28、 only and should not be considered as design examples. For this reason, the figures are simplified and are not to scale.No indications from the previous edition (ISO 3040:2009) have been made obsolete by this edition. Therefore, there is no former practice. ISO 2016 All rights reserved vBS EN ISO 30
29、40:2016BS EN ISO 3040:2016Geometrical product specifications (GPS) Dimensioning and tolerancing Cones1 ScopeThis International Standard specifies graphical indication applicable to a cone (right-angle circular cones) to define its dimensioning or to specify its tolerancing.For the purposes of this I
30、nternational Standard, the term “cone” relates to right-angle circular cones only (any intersection by a plane perpendicular to the axis of the nominal cone is a circle).NOTE 1 For simplicity, only truncated cones have been represented in this International Standard. However, this International Stan
31、dard can be applied to any type of cone within its scope.NOTE 2 This International Standard is not intended to prevent the use of other methods of dimensioning and tolerancing.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indi
32、spensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1119:2011, Geometrical product specifications (GPS) Series of conical tapers and taper anglesISO 81714-1,
33、Design of graphical symbols for use in the technical documentation of products Part 1: Basic rules3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1rate of taperCratio of the difference in the diameters of two sections of a cone to the distance be
34、tween themNote 1 to entry: lt is expressed by the following formula (see also Figure 1).CDdL=22tan(1)Figure 1INTERNATIONAL STANDARD ISO 3040:2016(E) ISO 2016 All rights reserved 1BS EN ISO 3040:2016ISO 3040:2016(E)4 Graphical symbol for a rate of taper for a coneA rate of taper for a cone shall be i
35、ndicated using the graphical symbol illustrated in Figure 2 centred on a reference line (see Figure 7). The orientation of the graphical symbol shall coincide with that of the cone (see Figure 7 and Figure 8).Size and line thickness of the graphical symbol are according to ISO 81714-1.Figure 25 Dime
36、nsions and indication on a cone5.1 Dimensions on a coneSeveral kinds of dimensions as shown in Table 1 may be used in order to define a cone.Table 1 Dimensions on a coneType of dimensions Letter symbol Examples of indicationPreferred method Optional methodRate of taper valueC1:51/50,2:120 %Cone angl
37、e value 35 0,6 radCone diameter value at the larger endD at the smaller endd at the specified cross-section DxLength value Distance between two planes limiting a coneL Distance between two planes limiting a set of a cone and a cylinderL Distance locating the cross-section where Dxis definedLxNo more
38、 dimensions than necessary shall be indicated. However, additional dimensions may be given for information as auxiliary dimensions.Some dimensions may be used to establish a tolerancing by dimensional or geometrical specification (see Clause 6). For this reason these dimensions may be defined as TED
39、s.Some typical combinations of cone dimensions are shown in Figure 3, Figure 4, Figure 5 and Figure 6.2 ISO 2016 All rights reservedBS EN ISO 3040:2016ISO 3040:2016(E)Figure 3Figure 4Figure 5 ISO 2016 All rights reserved 3BS EN ISO 3040:2016ISO 3040:2016(E)Figure 65.2 Indication of rate of taper val
40、ue on drawingsThe graphical symbol with the rate of taper value of a cone shall be indicated near the feature according to the rules presented in Clause 4.As shown in Figure 7, the reference line attached to the graphical symbol shall be: drawn parallel to the cone axis, and connected by a leader li
41、ne to the outline of the cone.When the taper belongs to a standardized series of conical taper (in particular Morse or metric taper), the rate of taper value of the cone may be replaced by the codification given by standard series according to ISO 1119 and appropriate number (see Figure 8). For exam
42、ple, the rate of taper value “1:20,047” may be replaced by the codification “Morse No. 1”.Key1 leader line2 rate of taper graphical symbol3 reference lineNOTE 1:5 is the rate of taper value.Figure 74 ISO 2016 All rights reservedBS EN ISO 3040:2016ISO 3040:2016(E)Figure 86 Tolerancing of a coneA cone
43、 is intrinsically defined by its angle (see Figure 9).Figure 9 Intrinsic representation of a coneNOTE A cone is different from a frustum which is defined by three geometrical entities (one of them is a cone).EXAMPLE A frustum defined by a cone and two end planes (not necessarily perpendicular to the
44、 axis of this cone). See Figure 10.Key1 Plane 12 Plane 23 coneFigure 10 ExampleThe objective of tolerancing is to define a set of one or more GPS specifications. Each GPS specification defines a particular characteristic and its permissible extent by the mean of one or two tolerances limits (see exa
45、mple in Figure 11).When a gauge plane is used in a specification, the gauge plane location shall be defined by TEDs (explicit or implicit: 0 mm). ISO 2016 All rights reserved 5BS EN ISO 3040:2016ISO 3040:2016(E)When a datum or datum system is used to locate or orientate the tolerance zone, the angul
46、ar or linear dimensions constraining the tolerance zone shall be defined by TEDs (explicit or implicit:0 mm, 0, 90 , 180, 270).When a geometrical specification is applied to a cone with the surface profile characteristic symbol without datum or datum system and the intrinsic characteristic of the co
47、ne shall be taken into account as fixed, then: the symbol VA shall not be indicated in the second compartment of the tolerance frame; and the angle of the cone shall be indicated: directly with the cone angle as a TED, or indirectly with the rate of taper value or by a combination of several dimensi
48、ons on a cone (e.g. see Figure 6).Each characteristic controls a set of degrees of freedom on the real workpiece.The set of degrees of freedom, which are possible to consider individually or collectively, is: the angle deviation; the form deviation on a section line or the surface; the location devi
49、ation (X, Y, Z : in Cartesian system); the orientation deviation (, : in Cartesian system).The table in Figure 11 presents, for a specification, the type of deviations which are controlled. The indication of the specification is presented and its meaning is illustrated and explained. This presentation is used in Annex A.Figure 11 and Annex A present various individual (independent) examples of possible dimensional or geometrical specifications in relation with a cone, in accordance with ISO 11
