1、BSI Standards PublicationBS ISO 11090-2:2014Test conditions for die sinkingelectro-discharge machines (diesinking EDM) Testing of theaccuracyPart 2: Double-column machines (slide-headtype)BS ISO 11090-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 11090
2、-2:2014.It supersedes BS ISO 11090-2:1998 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MTE/1/2, Machine tools - Accuracy.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purpor
3、t to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 77145 3ICS 25.120.40Compliance with a British Standard cannot confer immunity fromlegal obligations.T
4、his British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2014.Amendments issued since publicationDate Text affectedBS ISO 11090-2:2014 ISO 2014Test conditions for die sinking electro-discharge machines (die sinking EDM) Testing of the accura
5、cy Part 2: Double-column machines (slide-head type)Conditions dessai des machines dlectrorosion en plonge (EDM en plonge) Contrle de lexactitude Partie 2: Machines deux montants (type tte mobile)INTERNATIONAL STANDARDISO11090-2Second edition2014-12-01Reference numberISO 11090-2:2014(E)BS ISO 11090-2
6、:2014ISO 11090-2:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting o
7、n the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.or
8、gWeb www.iso.orgPublished in SwitzerlandBS ISO 11090-2:2014ISO 11090-2:2014(E)Contents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Terminology and designation of axes . 24.1 Slide-head type . 25 Preliminary remarks . 35.1 Measurement units 35.2 Refere
9、nce to ISO 230-1 35.3 Machine levelling 35.4 Testing sequence . 35.5 Tests to be performed . 35.6 Measuring instruments . 45.7 Software compensation . 45.8 Minimum tolerance . 45.9 Machining test . 45.10 Positioning tests and reference to ISO 230-2 . 46 Geometric tests 56.1 Linear axes of motion 56.
10、2 Table 126.3 Head, quill and spindle 147 Positioning tests for numerically controlled axes 178 Machining test 21Annex A (informative) Equivalent terms in Dutch, German, Italian, Swedish, Persian, and Japanese 22Bibliography .23 ISO 2014 All rights reserved iiiBS ISO 11090-2:2014ISO 11090-2:2014(E)F
11、orewordISO (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 tec
12、hnical 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 o
13、f electrotechnical standardization.The procedures used to develop this document and those intended for 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
14、 was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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 p
15、atent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does no
16、t constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to 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
17、.The committee responsible for this document is ISO/TC 39, Machine tools, Subcommittee SC 2, Test conditions for metal cutting machine tools.This second edition cancels and replaces the first edition (ISO 11090-2:1998), which has been technically revised.ISO 11090 consists of the following parts, un
18、der the general title Test conditions for die sinking electro-discharge machines (die sinking EDM) null Testing of the accuracy: Part 1: Single-column machines (cross-slide table type and fixed table type) Part 2: Double-column machines (slide-head type)iv ISO 2014 All rights reservedBS ISO 11090-2:
19、2014ISO 11090-2:2014(E)IntroductionThe purpose of this part of ISO 11090 is to standardize methods of testing normal accuracy and general-purpose die sinking electro-discharge machines (die sinking EDM).In this part of ISO 11090, the tolerances for G1, G2, G3, G5, P1, P2, P3, and P4 have been change
20、d from those in ISO 11090-2:1998.The machine axis designations are changed from ISO 11090-2:1998 to comply with ISO 841:2001.Cross-slide table type machines (ISO 11090-2:1998, 3.2) are deleted due to their limited availability in todays market. The following tests in ISO 11090-2:1998 are deleted due
21、 to the limited availability of the reference T-slot in typical machines in todays market: G9 (checking of straightness of the reference T-slot or reference surface of the table) and G10 (checking of parallelism between the reference T-slot or reference surface of the table and the x-axis motion). I
22、SO 2014 All rights reserved vBS ISO 11090-2:2014BS ISO 11090-2:2014Test conditions for die sinking electro-discharge machines (die sinking EDM) Testing of the accuracy Part 2: Double-column machines (slide-head type)1 ScopeThis part of ISO 11090 specifies, with reference to ISO 230-1 and ISO 230-2,
23、geometric and machining tests and tests for checking accuracy and repeatability of numerically controlled positioning axes for normal accuracy and general-purpose die sinking electro-discharge machines (die sinking EDM). It also specifies the applicable tolerances corresponding to the above-mentione
24、d tests.This part of ISO 11090 is applicable to double-column machines of slide-head type.This part of ISO 11090 deals only with the verification of accuracy of the machine. It does not apply to the testing of the machine operation (vibrations, abnormal noises, stick-slip motion of components, etc.)
25、 or to the checking of its characteristics (such as speeds, feeds, etc.), which should generally be checked before the testing of the accuracy.This part of ISO 11090 provides the terminology used for the principal components of the machine and the designation of the axes with reference to ISO 841:20
26、01.NOTE In addition to the terms used in the official ISO languages (English and French), Annex A of this part of ISO 11090 gives the equivalent terms in the Dutch, German, Italian, Swedish, Persian, and Japanese languages. These are published under the responsibility of the national member bodies f
27、or Netherlands (NEN), Germany (DIN), Italy (UNI), Sweden (SIS), Iran (ISIRI), and Japan (JISC). However, only the terms given in the official languages can be considered as ISO terms.2 Normative referencesThe following referenced documents in whole or in part, are normatively referenced in this docu
28、ment and are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 230-1:2012, Test code for machine tools Part 1: Geometric accuracy of ma
29、chines operating under no-load or quasi-static conditionsISO 230-2:2014, Test code for machine tools Part 2: Determination of accuracy and repeatability of positioning of numerically controlled axes3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.
30、1electro-discharge machinesmachine tools for the removal of material in dielectric fluid by electro-discharges, which are separated in time and randomly distributed in space, between two electrically conductive electrodes (the tool electrode and the workpiece electrode), and where the energy in the
31、discharge is controlledINTERNATIONAL STANDARD ISO 11090-2:2014(E) ISO 2014 All rights reserved 1BS ISO 11090-2:2014ISO 11090-2:2014(E)3.2die sinking electro-discharge machinesmachine tools for the removal of material by electro-discharge machining through the application of a tool electrode whose ge
32、ometry matches (defines) the desired shape of the workpiece feature3.3wire electro-discharge machinesmachine tools for the removal of material by electro-discharge machining through the application of a wire electrode to produce prismatic and more complex shapes in a workpiece4 Terminology and desig
33、nation of axes4.1 Slide-head typeSee Figure 1 and Table 1.NOTE The machine axis designations in Figure 1 comply with ISO 841:2001. However, X- and Y-axis designations may be interchanged to suit axes lengths and/or operator position.+Z-Y+X13256781011+Y+Z+X+W94+CNOTE See keys in Table 1.Figure 1 Doub
34、le-column machine with sliding headTable 1 Keys for Figure 1Key English French1 bed banc2 bridge column montant3 table (X-axis) table (axe X)4 saddle (Y-axis) chariot transversal (axe Y)2 ISO 2014 All rights reservedBS ISO 11090-2:2014ISO 11090-2:2014(E)Key English French5 work tank rservoir de trav
35、ail6 head (W-axis) tte de travail (axe W)7 quill (Z-axis) coulisse (axe Z)8 electrode platen porte-lectrode9 spindle (C-axis) broche (axe C)10 electrode electrode11 bridge traverse5 Preliminary remarks5.1 Measurement unitsIn this part of ISO 11090, all linear dimensions, deviations, and correspondin
36、g tolerances are expressed in millimetres. Angular dimensions are expressed in degrees and angular deviations and the corresponding tolerances are expressed primarily in ratios, but in some cases, microradians or arcseconds can be used for clarification purposes. The following expression should be u
37、sed for the conversion of angular deviations or tolerances:0,010/1 000=1010-6=10 rad2 (1)5.2 Reference to ISO 230-1For the application of this part of ISO 11090, reference shall be made to ISO 230-1 especially for the installation of the machine before testing, warming up of the spindle and other mo
38、ving parts, the description of measuring methods, and recommended accuracy of testing equipment.In the “Observations” block of the tests described in Clauses 6, 7, and 8, the instructions are preceded with reference to the corresponding clause/subclause in ISO 230-1 in cases where the test concerned
39、 is in compliance with the specifications. Tolerances are given for each geometric test (see G1 to G12).5.3 Machine levellingPrior to conducting tests on a machine, the machine should be levelled according to the recommendations of the manufacturer/supplier (see ISO 230-1:2012, 6.1.2).5.4 Testing se
40、quenceThe sequence in which the geometric tests are given in no way defines the practical order of testing. In order to make the mounting of instruments or gauging easier, the tests can be performed in any order.5.5 Tests to be performedWhen testing a machine tool, it is not always necessary or poss
41、ible to carry out all the tests given in this part of ISO 11090. When the tests are required for acceptance purposes, the choice of tests relating to the components and/or the properties of the machine of interest is at the discretion of the user, in agreement with the manufacturer/supplier. The tes
42、ts to be used are to be clearly stated when ordering a machine tool. A mere reference to this part of ISO 11090 for the acceptance tests, without specifying the tests to be carried out and without agreement on the relevant expenses, cannot be considered as binding for any contracting parties.Table 1
43、 (continued) ISO 2014 All rights reserved 3BS ISO 11090-2:2014ISO 11090-2:2014(E)5.6 Measuring instrumentsThe measuring instruments indicated in the tests described in the following clauses are examples only. Other instruments measuring the same quantities and having the same or smaller measurement
44、uncertainty can be used.5.7 Software compensationWhen built-in software facilities are available for compensating geometric, positioning, contouring, and/or thermal deviations, their use during these tests shall be based on agreement between the manufacturer/supplier and the user with due considerat
45、ion to the machine tool intended use.When the software compensation is used, this shall be stated in the test reports.It shall be noted that when software compensation is used, axes shall not be locked for the test purposes.5.8 Minimum toleranceWhen the tolerance for a geometric test is established
46、for a measuring length different from that given in this part of ISO 11090, the tolerance can be determined by means of the law of proportionality (see ISO 230-1:2012, 4.1.2). It shall be taken into consideration that the minimum value of tolerance is 0,005 mm.5.9 Machining testMachining test shall
47、be made under finishing conditions.5.10 Positioning tests and reference to ISO 230-2Tests P1 to P4 are applied only to numerically controlled electro-discharge machines.To apply these tests, reference shall be made to ISO 230-2 especially for the environmental conditions, warming up of the machine,
48、measuring methods, evaluation, and interpretation of the results.Checking of the W-axis is not included because the W movement is used for adjusting the head position. When required, it shall be done in the same way as the checking of the Z-axis.4 ISO 2014 All rights reservedBS ISO 11090-2:2014ISO 1
49、1090-2:2014(E)6 Geometric tests6.1 Linear axes of motionObject G1Checking of straightness of the X-axis motion:a) in the horizontal XY plane (EYX);b) in the vertical ZX plane (EZX).DiagramZXYZb)a)Tolerance Measured deviationsa)b)for a) and b)0,010 for any measuring length of 500Measuring instrumentsStraightness reference artefact and linear displacement sensor or optical measuring instrumentsObservations and reference to ISO 230-1:2012, 3.4.8, 8.2.2.1, and 8.2.3a) Mount the linear displacement sensor on the q
