865 OSI International Standard INTE RNATIONAL ORGANIZATION FOR STANDARDIZATION MEKAYHAPOAHAA OPrAHW3ALM IO CTAHAAPTM3ALWMORGANISATION INTE RNATIONALE DE NORMALISATION Slots in platens for projection welding machines Rainures des plateaux des machines a souder par bossages First edition - 1981-08-15 UDC 621.791.037-229.3 Ref. No. 1SO 865-1981 (E) ISO 865-1981 (E) Descriptors : welding, welding equipment, T-slots, dimensions. Price based on 1 page Copyright International Organization for Standardization ed without license from IHS Not for Resale Foreword national standards institutes (ISO member bodies). The work of developing Inter- body interested in a subject for which a technical committee has been set up 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the Iso Council. International Standard ISO 865 was developed by Technical Committee ISO/TC 44, Welding and allied processes, and was circulated to the member bodies in November 1979. It has been approved by the member bodies of the following countries : Belgium Poland India Bulgaria Ireland Portugal Canada Italy Romania China Japan Spain Czechosiovakia Korea, Rep. of Sweden France USSR New Zealand Germany, F. R. Norway The member bodies of the following countries expressed disapproval of the document on technical grounds : Finland United Kingdom This Internationai Standard cancels and replaces ISO Recommendation R 865-1968, of which it constitutes a technical revision. ? International Organization for Standardization, 1981 Printed in Switzerland Copyright Internatinal Organization for Standardization tworking permited without license from IHS Not for Resale ISO 865-1981 (E) INTERNATIONAL STANDARD Slots in platens for projection welding machines 1 Scope and field of application The lower slot shall be positioned at 9oo relative to the upper slot. Whenever possible, it is recommended that the upper This International Standard specifies requirements for dimen- slots should be parallel to the throat. sions, pitch and location of T-slots on platens for projection welding machines. 5 Designation The relevant number of slots in a platen shall be specified after Reference the reference ISO 865, for example the designation of a platen with 4 T-slots is. Iso 299, Machine tool tables -- T-slots and corresponding bolts. Platen ISO 865-4 A 3Dimensions on T-slots The dimensions of T-slots in the platens of resistance welding machines shall be in accordance with the indications given in the table. NOTE -- When, in special circumstances, it is necessary to depart from the slot size given in the table, the dimensions shall be in accor- dance with those given in ISO 299. 4 Pitch, number and location of the T-slots The pitch of T-slots shalt be 63 ± 0,5 mm. The tolerance of the tota! dimension between any two T-stots (regardless of the number of slots between) shall be ± 0,5 mm. The number of T-slots shall be even. However, for small machines (i.e. with a maximum force of 5 kN), it is permissible to use platens with an odd number of slots where the central slot is located in the centre line of the platen. B Table Dimensions in millimetres A B C H α* b* E Electrode force max. max. max. +? F1 < 5 kN 12 H12 18 0,6 19 9 21 10 1 2 > 5 kN 22 14H12 12 1,6 0,6 1,6 For information only. Copyright International Organization for Standardization Not for Resale