1、BRITISH STANDARD BS ENISO 6413:1995 BS308-1.9: 1995 Technical drawings Representation of splines and serrations The European Standard EN ISO6413:1994 has the status of a British StandardBSENISO6413:1995 This British Standard, having been prepared under the direction of the Engineering Sector Board,
2、was published under the authority of the Standards Board and comes into effect on 15 September 1995 BSI 03-1999 The following BSI references relate to the work on this standard: Committee reference TDE/4 Draft announced in BSI News August 1995 ISBN 0 580 23774 5 Committees responsible for this Briti
3、sh Standard The preparation of this British Standard was entrusted to Technical Committee TDE/4, Engineering drawing practice, upon which the following bodies were represented: Atomic Weapons Establishment British Gas plc British Standards Society Drawing Office Material Manufacturers and Dealers As
4、sociation Electricity Association Gauge and Tool Makers Association HEVAC Association Institution of Chemical Engineers Institution of Engineering Designers Power Generation Contractors Association Society of British Aerospace Companies Ltd. University of Warwick Amendments issued since publication
5、Amd. No. Date CommentsBSENISO6413:1995 BSI 03-1999 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Designation 3 5 Complete representation of spline joints 4 6 Simplified representation 4 7 Assembly drawin
6、gs 6 Annex A (normative) Proportions and dimensions of graphical symbols 8 Figure 1 3 Figure 2 3 Figure 3 4 Figure 4 4 Figure 5 4 Figure 6 4 Figure 7 6 Figure 8 6 Figure 9 6 Figure 10 6 Figure 11 6 Figure 12 6 Figure 13 7 Figure 14 7 Figure A.1 8 Figure A.2 8 Table 1 Simplified representation 5 Tabl
7、e A.1 Dimensions 8 List of references Inside back coverBSENISO6413:1995 ii BSI 03-1999 National foreword This British Standard has been prepared by Technical Committee TDE/4 and is the English language version of EN ISO6413:1994 Technical drawings Representation of splines and serrations, published
8、by the European Committee for Standardization (CEN). It is identical with ISO6413:1988, published by the International Organization for Standardization (ISO). This British Standard partially supersedes BS308-1. It is envisaged that when the full range of European Standards on technical drawing is im
9、plemented BS308will be withdrawn. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-r
10、eferences Publication referred to Corresponding British Standard ISO14:1982 BS5686:1986Specification for straight-sided splines for cylindrical shafts: metric nominal dimensions, tolerances and gauging requirements BS308Engineering drawing practice ISO128:1982 Part1:1993Recommendations for general p
11、rinciples ISO3098-1:1974 Part1:1993Recommendations for general principles ISO4156:1981 BS6186Specification for straight cylindrical involute splines: metric module side fit Part1:1981Dimensions and tolerances Summary of pages This document comprises a front cover, an inside front cover, pagesiand ii
12、, theEN title page, pages2 to8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO6413 Oc
13、tober1994 ICS 01.100.20; 21.120.30 Descriptors: Drawings, technical drawings, splines, graphic methods English version Technical drawings Representation of splines andserrations (ISO6413:1988) Dessins techniques Reprsentation des cannelures et des dentelures (ISO6413:1988) Technische Zeichnungen Dar
14、stellung von Keilwellen und Kerbverzahnungen (ISO6413:1988) This European Standard was approved by CEN on1994-10-14. 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 an
15、y alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by
16、 translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Lux
17、embourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart36, B-1050Brussels 1994Copyright reserved to CEN members Ref. No. EN ISO
18、6413:1994 EENISO6413:1994 BSI 03-1999 2 Foreword This European Standard was taken over by CEN from the work of ISO/TC10, Technical drawings, product definition and related documentation, of the International Standards Organization (ISO). The Technical Board had decided to submit the final draft for
19、Formal Vote. The result was positive. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 1995, and conflicting national standards shall be withdrawn at the latest by April 1995. According to th
20、e CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom.ENISO6413:1994 BSI 03
21、-1999 3 1 Scope This International Standard specifies the rules and graphical symbols for the representations of splines and serrations on technical drawings. Two methods of representation are specified as follows: a) true representation; b) simplified representation. The rules and graphical symbols
22、 specified in this International Standard are applicable to detail drawings of the parts (shafts and hubs) and to assembly drawings of joints. NOTEFor uniformity all figures in this International Standard are drawn in the first-angle orthographic projection. It should be understood that the third-an
23、gle orthographic projection could equally well have been used without prejudice to the principles established. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, th
24、e editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed below. Members of IEC and ISO maintain registers of curren
25、tly valid International Standards. ISO14:1982, Straight-sided splines for cylindrical shafts with internal centering Dimensions, tolerances and verification. ISO128:1982, Technical drawings General principles of presentation. ISO3098-1:1974, Technical drawings Lettering Part 1: Currently used charac
26、ters. ISO3461-2:1987, General principles for the creation of graphical symbols Part 2: Graphical symbols for use in technical product documentation. ISO4156:1981, Straight cylindrical involute splines Metric module, side fit Generalities, dimensions and inspection. 3 Definitions For the purposes of
27、this International Standard, the following definitions apply. 3.1 spline joint connecting, co-axial, elements that transmit torque through the simultaneous engagement of equally spaced teeth situated around the periphery of a cylindrical external member with similar spaced mating spaces situated aro
28、und the inner surface of the related cylindrical internal member ISO4156:1981 3.2 involute spline one member of a spline joint having teeth or spaces that have involute flank profiles ISO4156:1981 3.3 straight-sided spline one member of a spline joint having teeth or spaces that have straight-sided
29、flank profiles 3.4 serration one member of a spline joint having teeth or spaces that generally have flank profiles of60 pressure angle 4 Designation The designation of spline joints shall consist of the graphical symbol of the type and the designation of joint specified in the relevant Internationa
30、l Standard (see clause2) or any other standard dealing with this subject. 4.1 Graphical symbols The type of spline joint is indicated by graphical symbols. The graphical symbols for the straight-sided spline (see ISO14) are shown in Figure 1 and for the involute spline (see ISO4156) and for serratio
31、ns are shown in Figure 2. The proportion and dimensions of the graphical symbols are specified in Annex A. 4.2 Method for indicating designation The designation should be indicated near the feature but always connected to the contour of the spline joint by a leader line (see Figure 3). Figure 1 Figu
32、re 2 ENISO6413:1994 4 BSI 03-1999 Where a spline joint is not in accordance with a standard as mentioned above, or where the requirement is modified, the necessary data shall be tabulated on the drawing or any other associated document and shall be cross-referenced by a leader line and graphical sym
33、bol to the applicable contour. 5 Complete representation of spline joints A complete representation of spline joints showing all details with their true dimensions is generally not necessary in a technical drawing and should be avoided. If such a representation has to be made, the drawing rules laid
34、 down in ISO128shall be applied. If necessary, a designation of the spline joint in accordance with clause4 may be added. Figure 4 shows an example of a complete representation of a straight-sided spline joint. Figure 5 shows an example of a complete representation of an involute spline joint. Figur
35、e 6 shows an example of a complete representation of a serration. 6 Simplified representation 6.1 General A simplified representation for straight-sided splines and for involute splines as shown in Table 1 is usually adequate to convey all the necessary information. Figure 3 Figure 4 Figure 5 Figure
36、 6 ENISO6413:1994 BSI 03-1999 5 Table 1 Simplified representation 6.2 Representation of details (shafts and hubs) As a fundamental principle, the parts of a spline joint shall be represented as a solid part without teeth, but with the addition of the root surface in a continuous thin line (see ISO12
37、8, line type B) or the pitch surface in a thin chain line (see ISO128, line type G). 6.2.1 Contours and edges The contours and edges of a shaft (e.g.an external spline) or a hub (e.g.an internal spline) shall be drawn as if they were in an unsectioned view, solid parts (without teeth) bounded by a c
38、ylinder representing the tip surface (outside diameter, for example, of an external spline or inside diameter, for example, of an internal spline); in an axial section, a shaft or hub having two diametrically opposed teeth (shown unsectioned), regardless of tooth spacing. 6.2.2 Root surface For stra
39、ight-sided splines, the root surface (minor diameter of external splined part, major diameter of internal spline) shall be drawn with a continuous thin line (see ISO128, line type B). In the axial section of a splined shaft or hub, however, the root surface shall be drawn with a continuous thick lin
40、e (see ISO128, line type A) in accordance with Table 1. 6.2.3 Pitch surface The pitch surface (pitch diameter) shall be drawn with a thin chain line (see ISO128, line type G) for involute splines and serrations. Straight-sided splines Involute splines and serrations Shaft Hub Spline joint 1) If nece
41、ssary, the designation of the spline joint in accordance with clause 4 shall be added (for examples, see Figure 13 and Figure 14).ENISO6413:1994 6 BSI 03-1999 6.2.4 Usable length The usable length of the splined part shall be represented with a continuous thick line (see ISO128, line type A) (see Fi
42、gure 7). Usually, only the usable length of a splined part shall be drawn. 6.2.5 Tool run-out If necessary, the tool run-out may be represented by an oblique line or a radius with the same line as used for the root surface (see Figure 7 and Figure 8). 6.2.6 Position of teeth If it is essential to in
43、dicate the position of the teeth in relation to a given axial plane, one or two teeth may be drawn with a continuous thick line (see ISO128, line type A) (see Figure 9). 6.2.7 Detailed drawing of tooth profile If the designation is not sufficiently clear, a detailed drawing of the tooth profile shou
44、ld be added (see Figure 10). 6.2.8 Surface texture If it is necessary to specify the surface texture of the contacting surfaces (excluding root and tip diameter), the graphical symbol, the designation and the drawing indications used for surface texture should be indicated on a common leader line as
45、 shown in Figure 11. 7 Assembly drawings The rules specified for the representation of details are also applicable to assembly drawings (see Figure 12). In assembly drawings, the designations of both parts (hub and shaft) shall be combined as shown in Figure 13 and Figure 14. Figure 7 Figure 8 Figur
46、e 9 Figure 10 Figure 11 Figure 12 ENISO6413:1994 BSI 03-1999 7 Figure 13 Figure 14 ENISO6413:1994 8 BSI 03-1999 Annex A (normative) Proportions and dimensions of graphical symbols In order to harmonize the sizes of the graphical symbols specified in this International Standard with those of the othe
47、r drawing indications, the following rules, in accordance with ISO3461-2, shall be applied. A.1 General requirements A.1.1 The graphical symbols shown in clause4 shall be indicated using a line thickness d9 equal to one-tenth of the height h of the lettering used for the dimensions in the relevant d
48、rawing. A.1.2 The numerals and letters used for the additional specifications shall be drawn using the same line thickness d, height h and type of lettering as used for dimensions in the relevant drawing, and in accordance with ISO3098-1 (lettering type B, vertical). A.2 Proportions The graphical sy
49、mbols shall be drawn in accordance with Figure A.1 and Figure A.2. A.3 Dimensions The range of sizes to be used for the graphical symbols and additional specifications are given in Table A.1. Table A.1 Dimensions Figure A.1 Figure A.2 Dimensions in millimetres Height of numerals and letters, h 3,5 5 7 10 14 20 Line thickness for symbols, d9, and lettering, d 0,35 0,5 0,7 1 1,4 2 Height of symbol, h9 3,5 5 7 10 14 20BSENISO6413:1995 BSI 03-1999 List of references See national foreword.BSI 389 Chiswick High Road London W4
