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1、BRITISH STANDARD BS 1983-2: 1994 ISO 3089:1991 Chucks for machine tools and portable power tools Part 2: Specification for workholding chucks, power operated UDC 621.9-229.323.2 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994
2、This British Standard, having been prepared under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 September 1994 BSI 09-1999 First published July 1953 Second edition March 1969 Thi
3、rd edition October 1972 Fourth edition September 1994 The following BSI references relate to the work on this standard: Committee reference MTE/1 Draft for comment 86/75835 DC ISBN 0 580 23264 6 Committees responsible for this British Standard The preparation of this British Standard was entrusted b
4、y the Machine, Engineers and Hand Tools Standards Policy Committee (MTE/-) to Technical Committee MTE/1, upon which the following bodies were represented: Advanced Manufacturing Technology Research Institute British Engineers Cutting Tools Association Cranfield University Gauge and Tools Makers Asso
5、ciation Health and Safety Executive Machine Tool Technologies Association Ministry of Defence Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994 BSI 09-1999i Contents Page
6、Committees responsibleInside front cover National forewordii 1Scope1 2Normative reference1 3Preliminary remarks1 4Geometrical tests3 Figure 13 Figure 24 Figure 35 Figure 46 Table 12 Table 23 Table 34 Table 45 Table 56 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fr
7、i Nov 24 06:14:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994 ii BSI 09-1999 National foreword This Part of BS 1983 has been prepared under the direction of the Machine, Engineers and Hand Tools Standards Policy Committee. It is identical with ISO 3089:1991 Self-centring manually-opera
8、ted chucks for machine tools Acceptance test specifications (geometrical tests) prepared by the International Organization for Standardization (ISO). It supersedes BS 1983-2:1972, which is withdrawn. Cross-reference The Technical Committee has reviewed the provisions of ISO 230-1:1986 to which norma
9、tive reference is made in the text and decided that they are suitable for use in conjunction with this standard. A British Standard related to ISO 230-1:1986 is BS 3800 General tests for machine tools Part 1:1990 Code of practice for testing geometric accuracy of machines operating under no load or
10、finishing conditions A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages Thi
11、s document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licen
12、sed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994 BSI 09-19991 1 Scope This International Standard describes, with reference to ISO 230-1, the geometrical tests and the corresponding permissible deviations of two classes of accuracy
13、for self-centring, manually-operated chucks for machine tools with more than two jaws. This type of chuck has jaws known as “one-piece hard jaws”, the relatively large stroke of which allows quick adaptation to the most varied sizes of workpieces without dismounting. This International Standard deal
14、s only with the inspection of rotational accuracy of the chuck, the straightening and the centring of workpieces. It does not apply to other dynamic qualities, such as measurement of counterbalancing, balancing or measurement of gripping powers. 2 Normative reference The following standard contains
15、provisions which, through reference in this text. constitute provisions of this International Standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the
16、 possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 230-1:1986, Acceptance code for machine tools Part 1: Geometric accuracy of machines operating under no-load or finishing condit
17、ions. 3 Preliminary remarks Since all the geometrical tests to be carried out involve chuck rotation, the chuck should be mounted on a test spindle flange or adaptor. This flange or adaptor shall have been previously tested for the accuracy of size, centring, concentricity with the spindle axis and
18、lack of camming of the flange or adaptor (see Table 1). The mounting of the chuck on the spindle nose shall be made either directly on the face plate or with an adaptor placed between the spindle nose and the chuck. Where an adaptor is used, these tests shall be carried out directly on the face plat
19、e or adaptor which has previously been mounted on the spindle nose. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994 2 BSI 09-1999 Table 1 DiagramObject Full indicator movement (FIM) max. Observations and references to the ISO
20、230-1:1986 test code mmin Chuck mounted directly on the nose of the test spindle a) Radial run-out of the outside diameter of flange or adaptor a) 0,005a) 0,000 2 Clauses 5.611.4 and 5.612.2 In the case of a tapered spindle nose, the stylus of the dial gauge shall be set normal to the surface which
21、is to be checked. Chuck mounted on a face plate or adaptor b) Axial run-out (camming) of face of flange or adaptor b) 0,005b) 0,000 2 Clause 5.63 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994 BSI 09-19993 4 Geometrical tests
22、 4.1 Measurement of concentricity of outside diameter of chuck See Figure 1 and Table 2. 4.2 Measurement of axial run-out (camming) of face of chuck See Figure 1 and Table 2. Table 2 NOTEFor measurement 4.2, the dial gauge shall be placed on the largest diameter possible. Figure 1 Measurements 4.1 a
23、nd 4.2 Nominal diameter of chuck Dnom Full indicator movement (FIM) max. mminmmin Dnomu 160 160 Dnomu 250 250 Dnomu 400 400 Dnomu 630 630 Dnomu 1 000 Dnomu 6,3 6,3 Dnomu 10 10 Dnomu 15 15 Dnomu 24 24 Dnomu 36 0,03 0,04 0,06 0,08 0,10 0,001 2 0,001 6 0,002 4 0,003 0,004 Licensed Copy: sheffieldun she
24、ffieldun, na, Fri Nov 24 06:14:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994 4 BSI 09-1999 4.3 Checking of accuracy of grip on test bars See Figure 2 and Table 3. Table 3 NOTE 1The number of test bars to be used for class I chucks is four. The bars shall be of different diameters. For
25、 class II chucks, one test bar shall be specified. NOTE 2When testing class I chucks the sizes of test bar diameters to be used shall be proportionate to the scroll pitch so that various angular scroll positions differ from one test bar to another through an arc subtending an angle of approximately
26、90. The sizes of test bar diameters shall be different from the diameter at which the jaws are bored by a value approximately equal to 90 of scroll movement. NOTE 3Test 4.3 shall be repeated three times for each test bar to check the repeatability of gripping; each measured deviation shall fall with
27、in the quoted full indicator movement figure. NOTE 4In order to ensure the maximum stability of grip of the jaws on the test bars, the test bar diameter shall never be larger than the internal chuck diameter. NOTE 5The contact of each jaw on the test bars shall be made gripping along the centre line
28、 of each jaw, it being understood that any increase in the number of contact points or in their width would upset the centring and make the test difficult to carry out. NOTE 6Test bars shall be made of heat-treated steel to withstand the grip of the jaws without any permanent deformation, internal o
29、r superficial. NOTE 7The accuracy of test bars to be used shall conform to the specifications given in ISO 230-1:1986, Annex A, clause A.3, for test mandrels of similar dimensions. NOTE 8For geometrical tests the input force shall be constant, approximately 67 % of maximum input force. NOTE 9The mas
30、ter pinion is a pinion nominated as the reference pinion. Figure 2 Nominal diameter of chuck Distance of dial gauge from top of jaws Full indicator movement (FIM) max. Dnom l Class I, using master pinion Class II, using any pinion mminmminmminmmin Dnomu 160 160 Dnomu 250 250 Dnomu 400 400 Dnomu 630
31、630 Dnomu 1 000 Dnomu 6,3 6,3 Dnomu 10 10 Dnomu 15 15 Dnomu 24 24 Dnomu 36 50 50 75 100 125 2 2 3 4 5 0,04 0,06 0,075 0,10 0,125 0,001 6 0,002 4 0,002 9 0,003 9 0,004 9 0,10 0,15 0,20 0,25 0,30 0,003 9 0,005 9 0,007 8 0,009 8 0,011 8 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:48 GM
32、T+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994 BSI 09-19995 4.4 Reading on periphery See Figure 3 and Table 4. 4.5 Reading on face See Figure 3 and Table 4. Table 4 NOTE 1Each jaw step shall be tested. A single test ring should be used for each step. The external diameter of the test ring s
33、hall be smaller than the diameter at which the steps of the jaws have been ground. NOTE 2Tightening of the chuck shall be carried out using one pinion only. For class I chucks use the master pinion. NOTE 3The accuracy of the test rings to be used shall conform to the specifications given in ISO 230-
34、1:1986, Annex A. NOTE 4The reading on the face (test 4.5) shall be as near to the periphery as practicable. Figure 3 Test Nominal diameter of chuck Full indicator movement (FIM) max. Dnom Class IClass II mminmminmmin 4.4 Dnomu 160 160 Dnomu 250 250 Dnomu 400 400 Dnomu 630 630 Dnomu 1 000 Dnomu 6,3 6
35、,3 Dnomu 10 10 Dnomu 15 15 Dnomu 24 24 Dnomu 36 0,03 0,04 0,06 0,075 0,10 0,001 2 0,001 6 0,002 4 0,002 9 0,003 9 0,075 0,075 0,10 0,125 0,16 0,002 9 0,002 9 0,003 9 0,004 9 0,006 3 4.5 Dnomu 160 160 Dnomu 250 250 Dnomu 400 400 Dnomu 630 630 Dnomu 1 000 Dnomu 6,3 6,3 Dnomu 10 10 Dnomu 15 15 Dnomu 24
36、 24 Dnomu 36 0,025 0,03 0,04 0,05 0,06 0,001 0 0,001 2 0,001 6 0,002 0 0,002 4 0,05 0,05 0,075 0,10 0,125 0,002 0 0,002 0 0,002 9 0,003 9 0,004 9 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994 6 BSI 09-1999 4.6 Reading on bor
37、e See Figure 4 and Table 5. 4.7 Reading on face See Figure 4 and Table 5. Table 5 NOTE 1Each jaw step shall be tested. A single test ring should be used for each step. The internal diameter of the test ring shall be larger than the diameter at which the steps of the jaws have been ground. NOTE 2Tigh
38、tening of the chuck shall be carried out using one pinion only. For class I chucks use the master pinion. NOTE 3The accuracy of the test rings to be used shall conform to the specifications given in ISO 230-1:1986, Annex A. NOTE 4The reading on the face (test 4.7) shall be as near to the internal di
39、ameter as practicable. Figure 4 Test Nominal diameter of chuck Full indicator movement (FIM) max. Dnom Class IClass II mminmminmmin 4.6 Dnomu 160 160 Dnomu 250 250 Dnomu 400 400 Dnomu 630 630 Dnomu 1 000 Dnomu 6,3 6,3 Dnomu 10 10 Dnomu 15 15 Dnomu 24 24 Dnomu 36 0,03 0,04 0,06 0,075 0,10 0,001 2 0,0
40、01 6 0,002 4 0,002 9 0,003 9 0,075 0,075 0,10 0,125 0,16 0,002 9 0,002 9 0,003 9 0,004 9 0,006 3 4.7 Dnomu 160 160 Dnomu 250 250 Dnomu 400 400 Dnomu 630 630 Dnomu 1 000 Dnomu 6,3 6,3 Dnomu 10 10 Dnomu 15 15 Dnomu 24 24 Dnomu 36 0,025 0,03 0,04 0,05 0,06 0,001 0 0,001 2 0,001 6 0,002 0 0,002 4 0,05 0
41、,05 0,075 0,10 0,125 0,002 0 0,002 0 0,002 9 0,003 9 0,004 9 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:48 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2:1994 BSI 09-1999 List of references See national foreword. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:48
42、 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1983-2: 1994 ISO 3089:1991 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the internation
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