BS-ISO-3408-3-2006.pdf
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1、BRITISH STANDARD BS ISO 3408-3:2006 Ball screws Part 3: Acceptance conditions and acceptance tests ICS 25.060.99 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:50:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 3408-3:2006 This British Standard was published under the authority of
2、the Standards Policy and Strategy Committee on 31 July 2006 BSI 2006 ISBN 0 580 48900 0 National foreword This British Standard reproduces verbatim ISO 3408-3:2006 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee MTE/1, Machi
3、ne tools, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the sec
4、tion entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.
5、Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor relate
6、d international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 25 and a back cover. The BSI copyright notice displayed in this document indicates when the document
7、was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:50:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 3408-3:2006(E) INTERNATIONAL STANDARD ISO 3408-3 Second edition 2006-06-15 Ball screws Part 3: Ac
8、ceptance conditions and acceptance tests Vis billes Partie 3: Conditions et essais de rception BS ISO 3408-3:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:50:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:50:45 GMT+00:00 20
9、06, Uncontrolled Copy, (c) BSI iii Contents Page Foreword iv 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Test conditions and permissible deviations 2 4.1 Classification. 2 4.2 Geometrical tests 2 5 Acceptance tests 6 5.1 General. 6 5.2 Travel deviation and variation. 7 5.3 Run
10、-out and location tolerances. 12 5.4 Functional tests 22 Annex A (normative) Complementary tables 24 BS ISO 3408-3:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:50:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Organization for Standardization) is a
11、 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 represente
12、d 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. International Standards are draf
13、ted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Sta
14、ndard requires approval by at least 75 % of the member bodies casting a vote. 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 patent rights. ISO 3408-3 was prepared
15、 by Technical Committee ISO/TC 39, Machine tools. This second edition cancels and replaces the first edition (ISO 3408-3:1992), which has been technically revised. ISO 3408 consists of the following parts, under the general title Ball screws: Part 1: Vocabulary and designation Part 2: Nominal diamet
16、ers and nominal leads Metric series Part 3: Acceptance conditions and acceptance tests Part 4: Static axial rigidity Part 5: Static and dynamic axial load ratings and operational lifetime BS ISO 3408-3:2006 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:50:45 GMT+00:00 2006, Uncontrolled
17、Copy, (c) BSI 1 Ball screws Part 3: Acceptance conditions and acceptance tests 1 Scope This part of ISO 3408 specifies the technical acceptance conditions for ball screws (see Figure 1) and, in particular, the respective permissible deviations for the acceptance tests. NOTE The actual design need no
18、t necessarily correspond to that shown in Figure 1. The respective tests required will be agreed upon between the manufacturer and user. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited appl
19、ies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 230-1:1996, Test code for machine tools Part 1: Geometric accuracy of machines operating under no- load or finishing conditions ISO 286-2:1988, ISO system of limits and fits Part 2: Tab
20、les of standard tolerance grades and limit deviations for holes and shafts ISO 3408-1:2006, Ball screws Part 1: Vocabulary and designation 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 3408-1 apply. BS ISO 3408-3:2006 Licensed Copy: sheffieldun she
21、ffieldun, na, Sun Nov 26 08:50:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 4 Test conditions and permissible deviations 4.1 Classification The tests are graded in six standard tolerance grades (see Table 1) in conformance with ISO 286-2:1988, Table 1. Table 1 Standard tolerance grades Standard t
22、olerance grade 0 Standard tolerance grade 1 Standard tolerance grade 3 Standard tolerance grade 5 Standard tolerance grade 7 Standard tolerance grade 10 Increasing requirements on accuracy and function 4.2 Geometrical tests 4.2.1 Tolerances Tolerances on specified travel, ep, for the useful travel,
23、lu (tests E 1.1 and E 1.2), are taken directly from ISO 286-2:1988, Table 1. Values of ep for useful travel, lu, of greater than or equal to 3 150 mm were calculated be linear extrapolation (see Table A.1). Tolerances on travel variation, vup, in micrometres, within useful travel lu were evaluated u
24、sing the following equations: Grade 0: vup = 0,0035 u l + 2,4 Grade 1: vup = 0,0045 u l + 4,6 Grade 3: vup = 0,009 u l + 9,2 Grade 5: vup = 0,018 u l + 18,4 where u l is the geometrical mean, in millimetres, of the extreme lengths of each step of measured travel given in Table A.1: uu maxu min lll=
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