ISO INTERNATIONAL STANDARD 8636-1 Second edition 2000-02-15 Machine tools Test conditions for bridge-type milling machines - Testing of the accuracy - Part 1: Fixed bridge (portal-type) machines Machines-outils Conditions d'essai des machines a fraiser a portique Controle de la preécision - Partie 1: Machines a portique fixe Referencenumber ISO 8636-1:2000(E) ISO @ISO 2000 ISO8636-1:2000(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe isatrademarkof Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. @ISO2000 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either isO at the address below or isO's member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 734 10 79 E-mail [email protected] Web www.iso.ch Printed in Switzerland IsO2000-Allrightsreserved ISO 8636-1:2000(E) Contents Page 1 Scope 2 Normative references 3 Definitions and descriptions .... 3.1 Definitions of the machining processes that can be carried out.. 3.2 Definition of bridge-type milling machines and main types ... 3.3 Descriptions... 4 Terminology and designation of axes .. 4.1 Terminology .... 4.2 Designation of axes. 5 Preliminary remarks. 5.1 Measuring units 5.2 Reference to IsO 230-1.... 5.3 Temperature conditions. 5.4 Testing sequence..... 5.5 Tests to be performed ... 5.6 Measuring instruments 5.7 Minimumtolerance... 5.8 Machining tests.. 5.9 Positioning tests.. 6 Geometrictests. 6.1 Coordinate axes of motion .. 6.2 Table... 16 6.3 Milling spindle..... 6.4 Swivelling milling head . 6.5 Horizontal milling head (side milling head) 23 L Machining tests.. .26 7.1 Flatness of test pieces by slab milling .. .26 7.2 Milling of lateral faces 27 8 Accuracy and repeatability of positioning of numerically controlled axes ..28 8.1 .28 Linear axes 8.2 Rotary axes. .34 Annex A (informative) Equivalent terms in German and Italian 35 Bibliography 36