ISO INTERNATIONAL STANDARD 10791-4 First edition 1998-07-01 Test conditions for machining centres Part 4: Accuracy and repeatability of positioning of linear and rotary axes Conditions d'essai pour centres d'usinage - Partie 4: Précision et repétabilité de positionnement des axes lineaires et rotatifs ISO Reference number ISO 10791-4:1998(E) THS under Not for Resale ISO 10791-4:1998(E) Contents Page 1 Scope. 1 2 Normative references 1 3 Preliminary remarks 2 3.1 Measuring units 2 3.2 Reference to ISO 230-2 2 3.3 Testing sequence 2 3.4 Tests to be performed 2 3.5 Position of linear axes not under test .. 2 4 Positioning of linear axes 2 4.1 Tolerances 2 4.2 Measuring instruments 3 4.3 Observations and references to ISO 230-1 and ISO 230-2 3 4.4 Calculated deviations 3 5 Positioning of rotary axes ... 4 5.1 Tolerances 4 5.2 Measuring instruments 5 5.3 Observations and references to ISO 230-1 and IsO 230-2 5 5.4 Calculated deviations 5 6 Information to be recorded. 5 6.1 Data identifying the machine . 5 6.2 Data identifying the test. 6 6.3 Data on the test conditions 6 Annex A (informative) Bibliography 7 @ISO1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic InternationalOrganizationforStandardization Casepostale56·CH-1211Geneve20·Switzerland [email protected] Printed in Switzerland tional Organization for Standardization Not for Resa ISO 10791-4:1998(E) @ISO 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, 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. 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 10791-4 was prepared by Technical Committee ISO/TC 39, Machine tools. Subcommittee Sc 2, Test conditions for metal cutting machine tools. IsoO 10791 consists of the following parts, under the general title Test conditions for machining centres: Part 1: Geometric tests for machines with horizontal spindle and with accessory heads (horizontal Z-axis) Part 2: Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis) Part 3: Geometric tests for machines with integral indexable or continuous universal heads (vertical Z-axis) Part 4:Accuracy and repeatability of positioning of linear and rotary axes Part5:Accuracy and repeatabilityof positioning of work-holdingpallets -Part 6: Accuracy of feeds, speeds and interpolations - Part 7: Accuracy of a finished test piece Part 8: Evaluation of the contouring performance in the three coordinate planes Part 9: Evaluation of the operating times of tool change and pallet change Part10:Evaluation of the thermal distortions Part11:Evaluationof the noise emission Part12:Evaluationofthevibrationseverity Annex A of this part of ISO 10791 is for information only. ili Copyright Int