150 6545 92 4851903 0515432 587 ISO INTERNATIONAL 6545 STANDARD First edition 1992-10-15 Acceptance conditions for gear hobbing machines - Testing of the accuracy Conditions de reception des machines a tailler les engrenages par fraise-mere Controlede la precision iso Reference number ISO 6545 : 1992 (E) Copyright International Organization for Standardizatior ETh EEhS'S0 E06TS9h 26 ShS9 0SI ISO 6545 : 1992 (E) Foreword 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 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, govern- mental and non-governmental, in liaison with Iso, also take part in the work. IsO collaborates closely with the International Electrotechnicai Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards 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. International Standard ISO 6545 was prepared by Technical Committee ISO/TC 39, Machine tools, Sub-Committee Sc 2, Acceptance conditions for machines operating by removing metal. @ SO1992 Ail rights reserved. No part of this pubication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. tnternational Organization for Standardization Case postale 56 CH-1211 Geneve 20 · Switzerland Printed in Switzerland ii Not for Resale t license from IHS 4851903 0515434 35T Iso 6545 92 1SO 6545 : 1992 (E) INTERNATIONAL STANDARD Acceptance conditions for gear hobbing machines Testing of the accuracy Scope Preliminary remarks 1 3 This International Standard specifies geometrical tests and 3.1 In this International Standard, the dimensions and the practical tests, with reference to Iso 230-1 and also kinematic permissible deviations are expressed in millimetres and inches. tests (accuracy of the transmission of motion) for general pur- pose and normal accuracy gear hobbing machines, with vertical or horizontal spindle. This International Standard also gives the 3.2 To apply this International Standard, reference should be terminology used for the main elements of the machine. made to Iso 230-1, especially for the installation of the machine before testing, warming up of spindles and other mov- NOTE -- In addition to terms used in the official ISO languages ing parts, description of measuring methods and recommended (English, French and Russian), this International Standard gives the equivalent terms in the German language; these are published under accuracy of testing equipment. the responsibility of the member body for Germany (DIN). However, terms. 3.3 The sequence in which the geometrical tests are given is related to the sub-assemblies of the machine and this in no way It deals only with the verification of the accuracy of the defines the practical order of testing. In order to make the machine. It does not apply to the testing of the running of the mounting of instruments or gauging easier, tests may be machine (vibrations, abnormal noises, stick-slip motion of com- applied in any order. ponents, etc.) or to machine characteristics (such as speeds, feeds, etc.) which should generally be checked before the accuracy is tested. When inspecting a machine, it is not always possible, or 3.4 necessary, to carry out all the tests described in this Inter- national Standard. It is up to the user to choose, in agreement Normative references 2 with the manufacturer, those tests relating to the existing elements of the machine or to the properties which are of The foll