1、 ISO 2013 Tools for pressing Guide bushes Part 2: Form A, gliding bushes, plain, type 1 Outillage de presse Bagues de guidage Partie 2: Forme A, bagues lisses pour guidage lisse, type 1 INTERNATIONAL STANDARD ISO 9448-2 Second edition 2013-12-15 Reference number ISO 9448-2:2013(E) ISO 9448-2:2013(E)
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4、 Published in Switzerland ISO 9448-2:2013(E) ISO 2013 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2 Dimensions . 1 3 Material 2 4 Designation 2 Bibliography 3 ISO 9448-2:2013(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national
5、standards bodies (ISO member bodies). The work of preparing International 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
6、 organizations, governmental and non-governmental, in liaison with 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 fo
7、r its further maintenance are described in the ISO/IEC Directives, 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. www.iso.org/di
8、rectives Attention is drawn to the possibility that some of 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 th
9、e Introduction and/or on the ISO list of patent declarations received. 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
10、 conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information ISO 9448-2 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 8, Tools for pressing
11、and moulding. This second edition results from the reinstatement of ISO 9448-2:1991, which was withdrawn in 2006 and with which it is technically identical. ISO 9448 consists of the following parts, under the general title Tools for pressing Guide bushes: Part 1: Forms Part 2: Form A, gliding bushes
12、, plain, type 1 Part 3: Form B, ball cage bushes, plain, type 1 Part 4: Form C, gliding bushes, headed, type 1 Part 5: Form D, ball cage bushes, headed, type 1 Part 6: Form E, gliding bushes, flanged, type 1 Part 7: Form F, ball cage bushes, flanged, type 1 Part 8: Form G, gliding bushes, stepped, t
13、ype 1 Part 9: Form B, ball cage bushes, plain, type 2 Part 10: Form E, gliding bushes, flanged, type 2 Part 11: Form F, ball cage bushes, flanged, type 2iv ISO 2013 All rights reserved INTERNATIONAL ST ANDARD ISO 9448-2:2013(E) Tools for pressing Guide bushes Part 2: Form A, gliding bushes, plain, t
14、ype 1 1 Scope This part of ISO 9448 specifies the main dimensions and tolerances, in millimetres, of guide bushes of form A, plain gliding bushes, type 1, intended for use in press tools and to be mounted in the clamp plate by means of interference fit. It gives guidance on the materials, and specif
15、ies the hardness and the designation of bushes in accordance with this part of ISO 9448. 2 Dimensions The dimensions of type 1 plain gliding bushes (form A) shall conform to the indications of Figure 1 and Table 1. Details not stated, such as chamfers, radii and lubrication grooves, are left to the
16、manufacturers discretion. Surface roughness values in micrometres Figure 1 Form A, plain gliding guide bushes, type 1 ISO 2013 All rights reserved 1 ISO 9448-2:2013(E) Table 1 l 1 D 1 nom. tol. G6 G5 12 16 20 25 32 40 50 D 2 n6 a 22 28 32 40 48 58 70 25 32 40 50 63 80 100 125 160 standardized dimens
17、ion To prevent incorrect assembly of the upper and lower plates of the die set in relation to each other, the follow- ing values of D 1are recommended: 11, 15, 19, 24, 30, 38 and 48. aIntended to fit into a hole having a tolerance of H7. When the bushes are glued, tolerance j6 is permitted. 3 Materi
18、al The material is left to the manufacturers discretion and the hardness shall be 60 HRC. 4 Designation A guide bush in accordance with this part of ISO 9448 shall be designated by: a) “Guide bush”; b) a reference to this part of ISO 9448, i.e ISO 9448-2; c) its form; d) its guiding diameter, D 1 ,
19、in millimetres; e) its length, l 1 , in millimetres. EXAMPLE A guide bush of form A, plain gliding bush, type 1 of guiding diameter D 1= 12 mm and of length l 1= 25 mm is designated as follows: Guide bush ISO 9448-2 A - 12 252 ISO 2013 All rights reserved ISO 9448-2:2013(E) Bibliography 1 ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method ISO 2013 All rights reserved 3 ISO 9448-2:2013(E) ISO 2013 All rights reserved IC S 25.120.10 Price based on 3 pages
