1、July 2014Translation by DIN-Sprachendienst.English price group 7No 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!%7H4“2203717www.din.deDDIN ISO 7388-2Tool shanks with 7/24 taper for automatic tool changers Part 2: Dimensions and designation of shanks of forms J, JD and JF(ISO 7388-2:2007),English translation of DIN ISO 7388-2:2014-07Werkzeugschfte mit Kegel 7/24 fr automatischen Werkzeugwechsel Teil 2:
3、Mae und Bezeichnung von Schften der Formen J, JD und JF (ISO 7388-2:2007),Englische bersetzung von DIN ISO 7388-2:2014-07Queues doutils conicit 7/24 pour changement automatique doutils Partie 2: Dimensions et dsignation des queues de formes J, JD et JF (ISO 7388-2:2007),Traduction anglaise de DIN IS
4、O 7388-2:2014-07www.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 (informative) Bibliography .4 Introduction .5 1 Scope .6 2 Normati
5、ve references .6 3 Dimensions .6 3.1 General 6 3.2 Shank form J .6 3.3 Shank form JD 9 3.4 Shank form JF .9 3.5 Shanks with data medium 10 4 Information on material and heat treatment 11 5 Designation . 11 Bibliography . 12 2DIN ISO 7388-2:2014-07National foreword This document (ISO 7388-2:2007) has
6、 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 Clamping Devices Standards Committee), Working Committee NA 121-02-05 AA Werkzeugaufnahmen u
7、nd Schnittstelle Maschine/Werkzeuge. Attention is drawn to the possibility that some of the elements of this 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. ISO 7388 consists of the following parts, under the g
8、eneral 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 J, JD and JF Part 3: Retention knobs for shanks of forms AC, AD, AF, UC, UD, UF, JD and JF The DIN
9、 Standards corresponding to the International Standards referred to in this document are as follows: ISO 2768-1 DIN ISO 2768-1 ISO 2768-2 DIN ISO 2768-2 ISO 8015 DIN EN ISO 8015 3DIN ISO 7388-2:2014-07National Annex NA (informative) Bibliography DIN ISO 2768-1, General tolerances Tolerances for line
10、ar and angular dimensions without individual tolerance indications DIN ISO 2768-2, General tolerances Geometrical tolerances for features without individual tolerances indications DIN EN ISO 8015, Geometrical product specifications (GPS) Fundamentals Concepts, principles and rules 4DIN ISO 7388-2:20
11、14-07Introduction 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 chip have been taken into account. Tool shanks with 7/24 taper for automatic tool changers Part 2: Dimensions
12、and designation of shanks of forms J, JD and JF 5DIN ISO 7388-2:2014-071 Scope This part of ISO 7388 specifies the dimensions of tool shanks with a 7/24 taper of shank form J (with two possible additions for each) for automatic tool changers used on machines having an automatic gripping system for f
13、eeding 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 ISO 9270. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refere
14、nces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2768-1, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tolerance indications ISO 2768-2, General tolerances
15、Part 2: Geometrical tolerances for features without individual tolerance indications ISO 8015, Technical drawings Fundamental 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
16、 of tolerance class “m” in accordance with ISO 2768-1 and of class “k” in accordance with ISO 2768-2. 3.2 Shank form J See Figure 1 and Table 1. 6DIN ISO 7388-2:2014-07Key 1 cutting edge 2 transition between taper and flange aPosition of the cutting edge for right hand tools with single cutting edge
17、 (can be rotated 180: symmetrical design). bAt the option of the manufacturer (radius or chamfer). cAt the manufacturers discretion. dScale: 2:1. eNot convex. Figure 1 Shank form J 7DIN ISO 7388-2:2014-07Table 1 Dimensions of shanks of form J Shank number Dimension 30 40 45 50 60 b0,20+16,1 19,3 25,
18、7 d1a31, 75 44,45 57,15 69,85 107,95 d2H8 12,5 17 21 25 31 d400,538 53 73 85 135 d5h8 46 63 85 100 155 d6 0,0556,03 75,56 100,09 118,89 180,22 d76H M12 M16 M20 M24 M30 d88 10 12 15 20 d11max. 14,5 19 23,5 28 36 f b20 25 30 35 45 l1 0,2 48,4 65,4 82,8 101,8 161,8 l2min. 24 30 36 45 56 l3min. 34 43 50
19、 62 76 l40,50+7 9 11 13 16 l5min. 17 21 26 31 34 l616,3 22,6 29,1 35,4 60,1 l6tol. 00,300,4l700,51,6 2 r10,5 1 r2c00,50,8 1 1,2 1,5 2 t10,001 0,002 0,003 t20,002 0,003 0,004 t30,12 0,2 u min. 22 27 33 38 48 v 0,1 13,6 16,6 21,2 23,2 28,2 x 4 5 6 7 11 y 0,4 d2 3 81750“ tol. 4“0+ad1: basic diameter en
20、closed in a gauge plane. bFor information only. cChamfer or radius type of counterbore entrance are possible and limited by diameter d11. dTolerance 0,1 for form JF. 8DIN ISO 7388-2:2014-073.3 Shank form JD As a complement to Form J, it is possible to add a through hole, e.g. for centric inner cooli
21、ng lubricant supply, as indicated in Figure 2. This form is called JD. The condition is that d10shall be less than or equal to the core diameter of the thread receiving the retention knob. Figure 2 Shank form JD 3.4 Shank form JF As a complement to Form J, it is possible to add two holes at the back
22、 of the flange for inner coolant supply, the dimensions of which are indicated in Figure 3 and Table 2. This form is called JF. 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. aDiffe
23、rent from forms J and JD. Figure 3 Shank form JF 9DIN ISO 7388-2:2014-07Table 2 Supplementary dimensions of shank form JF Shank no.d9max. e130 2 20 40 4 27 45 5 35 50 6 42 60 8 66 3.5 Shanks with data medium For the three shank forms defined in 3.2 to 3.4, it is possible to add a data medium, the di
24、mensions of which are indicated in Figure 4 and Table 3. aThe fitting position of the data medium is the same position of the cutting edge as for right-hand tools with a single cutting edge. bOther diameter and depth according to the data medium used. Figure 4 Fitting position of the data medium Tab
25、le 3 Supplementary dimensions for fitting data medium Shank no. Dimension 30 40 45 50 60 c amax. 0,3 45 or r 0,3 ad13100,090+l84,60,20+l911 14,5 18 20,5 aAt the discretion of the manufacturer. 10DIN ISO 7388-2:2014-074 Information on material and heat treatment Tool shanks with a 7/24 taper should b
26、e heat treated with considerations for strength, hardness, case depth (if not through hardened). Toughness and wear requirements are to be taken into account. 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) refer
27、ence to this part of ISO 7388, i.e. “ISO 7388-2”; c) a dash; d) Form J, JD or JF; 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 7388-2, Form J, shank no. 40, with fitting position for a data medium D: Tool shank ISO 7388-2 J 40 D 11DIN ISO 7388-2:2014-07Bibliography 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 7388-2:2014-07
