1、July 2014Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25.
2、060.20!%7H/“2203712www.din.deDDIN ISO 7388-1Tool 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 (ISO 7388-1:2007),English translation of DIN ISO 7388-1:2014-07Werkzeugschfte mit Kegel 7/24 fr automatischen Werkzeugwech
3、sel Teil 1: Mae und Bezeichnung von Schften der Formen A, AD, AF, U, UD und UF(ISO 7388-1:2007),Englische bersetzung von DIN ISO 7388-1:2014-07Queues doutils conicit 7/24 pour changement automatique doutils Partie 1: Dimensions et dsignation des queues de formes A, AD, AF, U, UD et UF(ISO 7388-1:200
4、7),Traduction anglaise de DIN ISO 7388-1:2014-07SupersedesDIN 69871-1:1995-10www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 12 pages07.14 A comma is used as the decimal marker. Contents Page National foreword .3 National Annex NA (info
5、rmative) Bibliography .4 Introduction .5 1 Scope .6 2 Normative references .6 3 Dimensions .6 3.1 General 6 3.2 Shank forms A and U .6 3.3 Shank forms AD and UD 9 3.4 Shanks forms AF and UF .9 3.5 Shanks with data medium 10 4 Information on material and heat treatment . 10 5 Designation . 11 Bibliog
6、raphy . 12 2DIN ISO 7388-1:2014-07National foreword This document (ISO 7388-1:2007) has been prepared by Technical Committee ISO/TC 29 “Small tools” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Werkzeuge und Spannzeuge (Tools and Clamp
7、ing Devices Standards Committee), Working Committee NA 121-02-05 AA Werkzeugaufnahmen und Schnittstelle Maschine/Werkzeuge. 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
8、 A, AD, AF, U, UD and UF Part 2: Dimensions and designation of shanks of forms J, JD and JF Part 3: Retention knobs for shanks of forms AC, AD, AF, UC, UD, UF, JD and JF The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 2768-1 DIN ISO 276
9、8-1 ISO 2768-2 DIN ISO 2768-2 ISO 8015 DIN EN ISO 8015 This document replaces the national Standard DIN 69871-1:1995-10, Tool shanks with 7/24 taper for automatic tool exchange Part 1: Type A, type AD, type B and with data media Attention is drawn to the possibility that some of the elements of this
10、 document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. Amendments This standard differs from DIN 69871-1:1995-10 as follows: a) Shanks of forms U, UD and AF and UF have been added to supplement shank forms A and U; b
11、) shank form B has been replaced by forms AF and UF; c) designations and dimensions of shank forms have been modified; d) Clause 4 “information on material and heat treatment” has been added; e) the designation of a tool shank has been changed. Previous editions DIN 69871-1: 1982-06, 1985-12, 1988-0
12、7, 1990-03, 1995-10 3DIN ISO 7388-1:2014-07National Annex NA (informative) Bibliography DIN ISO 2768-1, General tolerances Tolerances for linear and angular dimensions without individual tolerance indications DIN ISO 2768-2, General tolerances Geometrical tolerances for features without individual t
13、olerances indications DIN EN ISO 8015, Geometrical product specifications (GPS) Fundamentals Concepts, principles and rules 4DIN ISO 7388-1:2014-07Introduction The aim of ISO 7388 is to integrate existing standards which are most commonly used as an industrial standard. In addition, the different de
14、velopments for cooling and data chip have been taken into account. 5DIN ISO 7388-1:2014-07Tool shanks with 7/24 taper for automatic tool changers Part 1: Dimensions and designation of shanks of forms A, AD,AF, U, UD and UF1 Scope This part of ISO 7388 specifies the dimensions of tool shanks with a 7
15、/24 taper, of shank forms A, AD, AF, 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 f
16、or use in spindle noses according to 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
17、amendments) applies. ISO 2768-1, General 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 Fundament
18、al tolerancing principle 3 Dimensions 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
19、 U See Figure 1 and Table 1. 6DIN ISO 7388-1:2014-07Key 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
20、. fDepth. 0,4. Figure 1 Shank forms A and U 7DIN ISO 7388-1:2014-07Table 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
21、d3tol. Max. 0,150,15+Max. 0,150,15+Max. 0,150,15+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
22、9,52 9,52 e min. 35 38 fb15,9 j00,315 18,5 24 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. 00,300,5r
23、2c00,50,8 1 1,2 1,5 2 r300,51,6 2 t10,001 0,002 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 d
24、11. 8DIN ISO 7388-1:2014-073.3 Shank forms AD and 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 d10s
25、hall be less or equal to the core diameter of the 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 ind
26、icated in Figure 3 and Table 2. Those forms are 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 discret
27、ion. Figure 3 Shank forms AF and UF 9DIN ISO 7388-1:2014-07Table 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 whi
28、ch are indicated in Figure 4 and Table 3. aFitting 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 f
29、or fitting of data medium cmax0,3 45 or r 0,3 ad13100,090+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
30、 wear requirements are to be taken into account. 10DIN ISO 7388-1:2014-075 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
31、or UF; e) the size; f) in the case of a design with data 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 11DIN ISO 7388-1:2014-07Bibliography 1 ISO 9270 1), 7/24 tapers for tool shanks for automatic changing 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. 12DIN ISO 7388-1:2014-07
