1、BS ISO 3070-2:2016Machine tools Testconditions for testing theaccuracy of boring and millingmachines with horizontalspindlePart 2: Machines with movable columnalong the X-axis (floor type)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 3070-2:2016 BRITISH STAN
2、DARDNational forewordThis British Standard is the UK implementation of ISO 3070-2:2016.It supersedes BS ISO 3070-2:2007 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MTE/1/2, Machine tools - Accuracy.A list of organizations represented on this committ
3、ee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 78991 5ICS 25.080.20Com
4、pliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 3070-2:2016 ISO 2016Ma
5、chine tools Test conditions for testing the accuracy of boring and milling machines with horizontal spindle Part 2: Machines with movable column along the X-axis (floor type)Machines-outils Conditions dessai pour le contrle de lexactitude des machines alser et fraiser broche horizontale Partie 2: Ma
6、chines montant mobile le long de laxe X (de type au sol)INTERNATIONAL STANDARDISO3070-2Fourth edition2016-08-01Reference numberISO 3070-2:2016(E)BS ISO 3070-2:2016ISO 3070-2:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unle
7、ss 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 on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the a
8、ddress below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 3070-2:2016ISO 3070-2:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative r
9、eferences 13 Terms and definitions . 24 Terminology and designation of axes . 25 Special remarks concerning particular elements 35.1 Spindle heads . 35.2 Tables 46 Preliminary remarks . 56.1 Measurement units 56.2 Reference to ISO 230 series of standards 56.3 Testing sequence . 56.4 Tests to be perf
10、ormed . 56.5 Measuring instruments . 56.6 Software compensation . 66.7 Minimum tolerance . 67 Geometric tests 77.1 Straightness and angular deviations of linear axes . 77.2 Squareness and parallelism between linear axes 137.3 Fixed table independent of the machine . 187.4 Boring spindle 227.5 Millin
11、g spindle 267.6 Rotary and movable table . 287.7 Indexing or rotary tables . 358 Checking accuracy and repeatability of positioning by numerical control 37Annex A (informative) Geometric accuracy of axis of rotation 44Annex B (normative) Tests of accessory facing heads see Figure 2 b) .48Annex C (in
12、formative) Nomenclature of machine tool components in other languages .52Bibliography .53 ISO 2016 All rights reserved iiiContents PageBS ISO 3070-2:2016ISO 3070-2:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO memb
13、er 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, government
14、al 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.The procedures used to develop this document and those intended for its further maintenance a
15、re 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 was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is
16、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 patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or
17、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 not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assess
18、ment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.htmlThe committee responsible for this document is ISO/TC 39 Machine tools, Subcommittee SC 2 Test conditions fo
19、r metal cutting machine tools.This fourth edition cancels and replaces the third edition (ISO 3070-2:2007), which has been technically revised.ISO 3070 consists of the following parts under the general title Machine tools Test conditions for testing the accuracy of boring and milling machines with h
20、orizontal spindle: Part 1: Machines with fixed column and table movable on a cross slide Part 2: Machines with movable column along the X-axis (floor type) Part 3: Machines with movable column along the Z-axis (T-bed type)iv ISO 2016 All rights reservedBS ISO 3070-2:2016ISO 3070-2:2016(E)Introductio
21、nMost horizontal spindle boring and milling machines fall into the following three categories characterized by their particular configuration:a) machines with fixed column and table movable on a cross slide;b) machines with movable column along the X-axis (floor type);c) machines with movable column
22、 along the Z-axis (T-bed type).The object of ISO 3070 is to supply information as wide and comprehensive as possible on tests which can be carried out for comparison, acceptance, maintenance or any other purpose.This revision of this part of ISO 3070 provides additional information on tests to be pe
23、rformed and specifies new tolerances to better reflect the current technology.Machining tests have been excluded from this revision of this part of ISO 3070 considering that such tests can typically be the object of agreement between manufacturer/supplier and user, (possibly) including tests that ar
24、e specified in ISO 10791-7. ISO 2016 All rights reserved vBS ISO 3070-2:2016BS ISO 3070-2:2016Machine tools Test conditions for testing the accuracy of boring and milling machines with horizontal spindle Part 2: Machines with movable column along the X-axis (floor type)1 ScopeThis part of ISO 3070 s
25、pecifies, with reference to ISO 230-1, ISO 230-7 and ISO 230-2, geometric tests, spindle tests and tests for checking the accuracy and repeatability of positioning by numerical control of horizontal spindle boring and milling machines having a movable column along the X-axis and also specifies the a
26、pplicable tolerances corresponding to general-purpose, normal accuracy machines.This type of machines are usually provided with sliding boring spindles and can be provided with universal spindle heads of the following types, whose test conditions are covered by ISO 17543-1: fixed or indexable heads,
27、 with accessory spindle(s) square to the Z-axis, with or without one spindle parallel to the Z-axis; 45 split indexable heads, with mechanical indexing of the different angular positions of the two bodies (e.g. Hirth couplings); 45 split continuous heads, provided with continuous positioning of the
28、two numerically controlled axes; swivel heads, with two numerically controlled rotary axes perpendicular to each other.Test conditions for accessory facing heads are specified in Annex B.This part of ISO 3070 concerns machines having movement of the column on the bed (X-axis), vertical movement of t
29、he spindle head on the column (Y-axis), axial movement of the ram (Z-axis), axial movement of the boring spindle (W-axis), and, in most cases, one or more tables moving on a bed parallel to the spindle (R-axis) and rotating around a vertical axis (B-axis).This part of ISO 3070 deals only with the ve
30、rification of the accuracy of the machine. It does not apply to the operational testing of the machine (e.g. vibration, abnormal noise, stick-slip motion of components) nor to machine characteristics (e.g. speeds, feeds), as such checks are generally carried out before testing the accuracy.2 Normati
31、ve referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) app
32、lies.ISO 230-1:2012, Test code for machine tools Part 1: Geometric accuracy of machines 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 axesISO 230-7:2015, Test
33、code for machine tools Part 7: Geometric accuracy of axes of rotationINTERNATIONAL STANDARD ISO 3070-2:2016(E) ISO 2016 All rights reserved 1BS ISO 3070-2:2016ISO 3070-2:2016(E)3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1boring operationmach
34、ining operation for generating holes of various sizes and geometries in which the principal cutting motion is the rotation of a single-point cutting tool against the non-rotating workpiece and where the cutting energy is brought by the cutting tool rotationNote 1 to entry: Boring the diameter of cyl
35、indrical, conical, blind or through holes to the required size is achieved by using a boring bar to locate the cutting edge of the boring tool in a well-defined position with respect to the axis average line of the boring spindle.Note 2 to entry: In the case of coaxial bores situated on opposite fac
36、es of the same workpiece, the operation may be carried out using the sliding boring spindle, if it can work through all the workpiece, or turning the table 180 to bore the opposite side of the workpiece (reverse boring).3.2milling operationmachining operation to generate surfaces of various geometri
37、es in which the principal cutting motion is the rotation of a cutting tool with multiple cutting edges against the non-rotating workpiece and where the cutting energy is brought by the cutting tool rotationNote 1 to entry: Milling operations mostly involve face milling or end milling. The tools are
38、mounted either in the boring spindle taper (see Figure 2) or, as for face milling cutters, on the milling spindle nose.3.3boring and milling machinemachine tool in which boring and milling operations are executed4 Terminology and designation of axesIn a boring and milling machine, cutting movement i
39、s generated by the rotation of the spindle(s) and, possibly, of the facing head.The feed movements are as follows:a) transverse movements of the column on the bed (X-axis);b) vertical movement of the spindle head (Y-axis);c) axial movement of the ram (Z-axis);d) axial movement of the spindle (W-axis
40、);e) axial movement of the table (R-axis), where available;f) possible (optional) movement of radial facing slide (U-axis);g) possible (optional) movement of the rotary table (B-axis).Figure 1 shows two typical configurations of such machines.The designation of the configuration with fixed table is:
41、 w b X Y Z W (C) t whereas the designation of the configuration with roto-translating table is: w B R b X Y Z W (C) t.NOTE The foundation is very important for these machine tool configurations. The designation “b” for these machines typically includes the bed on the workpiece side, the foundation,
42、and the bed on the tool side.Table 1 provides the nomenclature for various structural components of machines shown in Figure 1.2 ISO 2016 All rights reservedBS ISO 3070-2:2016ISO 3070-2:2016(E)NOTE For elements 1 to 10, see Table 1.Figure 1 Machine with movable column along the X-axis with (optional
43、) roto-translating tableTable 1 Nomenclature (see Figure 1)Figure 1 ref.English French Russian1 bed banc 2 column base base du montant 3 spindle head chariot porte-broche 4 ram coulant 5 column montant 6 spindle broche 7 fixed table table fixe 8 table bed banc de la table 9 rotary table saddle trana
44、rd de la table rotative 10 rotary table table rotative NOTE In addition to the terms used in the three ISO official languages, presented in this table, Table C.1 provides the equivalent terms in Italian and Persian; these are published under the responsibility of the member body for Italy (UNI) and
45、Iran (ISIRI) and are given for information only. Only the terms given in the official languages can be considered as ISO terms.5 Special remarks concerning particular elements5.1 Spindle headsReference should be made to Figure 2 for examples of the various types of head. Related nomenclature is give
46、n in Table 2.Facing heads generally have a radial facing slide and in most cases are accessories. Relevant geometric tests are specified in Annex B. ISO 2016 All rights reserved 3BS ISO 3070-2:2016ISO 3070-2:2016(E)a) Headstock for boring and millingb) Headstock with facing head c) Headstock with ra
47、mNOTE For elements 1 to 5, see Table 2.Figure 2 Types of headstocksTable 2 Nomenclature (see Figure 2)Figure 2 ref.English French Russian1 boring spindle broche dalsage 2 milling spindle broche de fraisage 3 facing head plateau surfacer 4 headstock with facing head blier avec plateau surfacer 5 ram
48、coulant NOTE In addition to the terms used in the three ISO official languages, given in this table, Table C.2 provides the equivalent terms in Italian and Persian; these are published under the responsibility of the member body for Italy (UNI) and Iran (ISIRI) and are given for information only. Only the terms given in the official languages can be considered as ISO terms.5.2 TablesIn most cases, this type of machines is provided with both fixed tables and movable tables with linear and rotary movements.The rotary movement of the table may be us
