1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Part 1: Dimensions and designation of shanks of forms A, AD, AF, U, UD and UFICS 25.060.20Tool shan
2、ks with 7/24 taper for automatic tool changers BRITISH STANDARDBS ISO 7388-1:2007BS ISO 7388-1:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 September 2007 BSI 2007ISBN 978 0 580 56721 6Amendments issued since publicationAmd. No. Dat
3、e Commentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard is the UK implementation of ISO 7388-1:2007. It supersedes BS 6607-1:1985 which is withdrawn. The UK participa
4、tion in its preparation was entrusted to Technical Committee MTE/1, Machine tools.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a Reference numberISO 7388-1:2007(E)INTERNA
5、TIONAL STANDARD ISO7388-1Second edition2007-08-01Tool shanks with 7/24 taper for automatic tool changers Part 1: Dimensions and designation of shanks of forms A, AD, AF, U, UD and UF Queues doutils conicit 7/24 pour changement automatique doutils Partie 1: Dimensions et dsignation des queues de form
6、es A, AD, AF, U, UD et UF BS ISO 7388-1:2007ii iiiForeword ISO (the International Organization for 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
7、 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 with ISO, also take part in the work. ISO collaborates closely with the Internationa
8、l 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 main task of technical committees is to prepare International Standards. Draft International Standards
9、 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of
10、 patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 7388-1 was prepared by Technical Committee ISO/TC 29, Small tools. This second edition cancels and replaces the first edition (ISO 7388-1:1983), which has been technically revised. It also incorporat
11、es the Addendum ISO 7388-1:1983/Add. 1:1984. ISO 7388 consists of the following parts, under the general title Tool shanks with 7/24 taper for automatic tool changers: Part 1: Dimensions and designation of shanks of forms A, AD, AF, U, UD and UF Part 2: Dimensions and designation of shanks of forms
12、J, JD and JF Part 3: Retention knobs for shanks of forms AC, AD, AF, UC, UD, UF, JD and JF BS ISO 7388-1:2007iv Introduction The aim of ISO 7388 is to integrate existing standards which are most commonly used as an industrial standard. In addition, the different developments for cooling and data chi
13、p have been taken into account. BS ISO 7388-1:20071Tool shanks with 7/24 taper for automatic tool changers Part 1: Dimensions and designation of shanks of forms A, AD, AF, U, UD and UF 1 Scope This part of ISO 7388 specifies the dimensions of tool shanks with a 7/24 taper, of shank forms A, AD, AF,
14、U, UD and UF (with two possible additions for each), for automatic tool changers, used on machines having an automatic gripping system for feeding tools from the magazine to the spindle and vice-versa. These tools are designed with the most important dimensions for use in spindle noses according to
15、ISO 9270. 2 Normative references The following referenced documents 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 2768-1, Gene
16、ral tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications ISO 2768-2, General tolerances Part 2: Geometrical tolerances for features without individual tolerance indications ISO 8015, Technical drawings Fundamental tolerancing principle 3 Dimensions
17、 3.1 General All dimensions and tolerances are given in millimetres; tolerancing is according to ISO 8015. Tolerances not specified shall be of tolerance class “m” in accordance with ISO 2768-1 and of class “k” in accordance with ISO 2768-2. 3.2 Shank forms A and U See Figure 1 and Table 1. BS ISO 7
18、388-1:20072 Key 1 cutting edge 2 transition between taper and flange aPosition of the cutting edge for right hand tools with single cutting edge. bAt the option of the manufacturer (radius or chamfer). cAt the manufacturers discretion. dScale: 2:1. eNot convex. fDepth. 0,4. Figure 1 Shank forms A an
19、d U BS ISO 7388-1:20073Table 1 Dimensions of shanks of forms A and U Shank number 30 40 45 50 60 Form Dimension A U A U A U A U A U b0,20+16,1 19,3 25,7 d1a31,75 44,45 57,15 69,85 107,95 d2H7 13 17 21 25 32 d345 31,75 50 44,45 63 57,15 80 69,95 130 107,95 d3tol. Max. 0,150,15+Max. 0,150,15+Max. 0,15
20、0,15+Max. 0,150,15+Max. 0,150,15+d400,544,3 39,15 56,25 75,25 91,25 147,7 132,8 d500,150 46,05 63,55 82,55 97,5 98,5 155 139,75 d6 0,05 59,3 54,85 72,3 91,35 107,25 108,25 164,75 149,5 d76H M12 M16 M20 M24 M30 d11max. 14,5 19 23,5 28 36 d12 9,52 9,52 9,52 9,52 9,52 e min. 35 38 fb15,9 j00,315 18,5 2
21、4 30 49 l100,347,8 68,4 82,7 101,75 161,9 l2min. 24 32 40 47 59 l3min. 33,5 42,5 52,5 61,5 76 l40,50+5,5 8,2 10 11,5 14 l516,3 22,7 29,1 35,5 54,5 l5tol. 00,300,4l618,8 25 31,3 37,7 59,3 56,8 l6tol. 00,300,4l700,51,6 2 r1 0,6 1,2 2 2,5 3,5 r1tol. 00,300,5r2c00,50,8 1 1,2 1,5 2 r300,51,6 2 t10,001 0,
22、002 0,003 t20,002 0,003 0,004 t30,12 0,2 u00,119,1 v 0,1 11,1 x0,150+3,75 y 0,1 3,2 81750“ tol. 4“0+ad1: basic diameter enclosed in a gauge plane. bFor information only. cChamfer or radius type of counterbore entrance are possible and limited by diameter d11. BS ISO 7388-1:20074 3.3 Shank forms AD a
23、nd UD As a complement to Forms A and U, it is possible to add a through hole, e.g. for centric inner coolant supply, as indicated in Figure 2. Those forms are called AD (if provided on Form A) and UD (if provided with Form U). The condition is that d10shall be less or equal to the core diameter of t
24、he thread receiving the retention knob. Figure 2 Shank forms AD and UD 3.4 Shanks forms AF and UF As a complement to shank forms A and U, it is possible to add two holes at the back of the flange for inner coolant supply, the dimensions of which are indicated in Figure 3 and Table 2. Those forms are
25、 called AF (if provided with Form A) and UF (if provided with Form U). For Forms AF and UF, if an auxiliary connecting bore is needed, it shall be sealed to withstand an operating pressure of up to 5 MPa, of a design that is at the manufacturers discretion. Figure 3 Shank forms AF and UF BS ISO 7388
26、-1:20075Table 2 Supplementary dimensions of shanks of forms AF and UF Shank no. d9max. e130 4 21 40 4 27 45 5 35 50 6 42 60 8 66 3.5 Shanks with data medium For the six forms specified in 3.2 to 3.4, a data medium can be added, the dimensions of which are indicated in Figure 4 and Table 3. aFitting
27、position of the data medium: same position as the cutting edge for right-hand tools with a single cutting edge. bOther diameters and depth according to the data medium used. Figure 4 Fitting position of data medium Table 3 Supplementary dimensions for fitting of data medium cmax0,3 45 or r 0,3 ad131
28、00,090+l84,60,20+aAt the discretion of the manufacturer.4 Information on material and heat treatment Tool shanks with a 7/24 taper should be heat treated with considerations for strength, hardness, case depth (if not through hardened). Toughness and wear requirements are to be taken into account. BS
29、 ISO 7388-1:20076 5 Designation A tool shank with 7/24 taper in accordance with this part of ISO 7388 shall be designated as follows: a) “Tool shank”; b) reference to this part of ISO 7388, i.e. “ISO 7388-1”; c) a dash; d) Form A, U, AD, UD, AF or UF; e) the size; f) in the case of a design with dat
30、a medium, a dash and the letter D. EXAMPLE Designation of a tool shank with 7/24 in accordance with ISO 7388-1, Form A, shank no. 40 with fitting position for a data medium D: Tool shank ISO 7388-1 A 40 D BS ISO 7388-1:20077Bibliography 1 ISO 9270 1), 7/24 tapers for tool shanks for automatic changi
31、ng Tapers for spindle noses 1) It is intended that at the next revision, shanks of forms U, UD, UF, J, JD and LF will also be covered. BS ISO 7388-1:2007BS ISO BSI389 Chiswick High RoadLondonW4 4AL7388-1:2007BSI British Standards InstitutionBSI is the independent national body responsible for prepar
32、ing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions.I
33、t is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside fr
34、ont cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign standards publications shoul
35、d be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-.In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been
36、 published as British Standards, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Various BSI electronic information services are also availab
37、le which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-.Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards.
38、 For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-.Information regarding online access to British Standards via British Standards Online can be found at http:/www.bsi- information about BSI is availabl
39、e on the BSI website at http:/www.bsi-.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, st
40、ored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI.This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained.Details and advice can be obtained from the Copyright & Licensing Manager. Tel: +44 (0)20 8996 7070. Fax: +44 (0)20 8996 7553. Email: copyrightbsi-.
