1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58self-centring chucks with two-piece jaws Part 2: Power-operated chucks with tongue and groove type
2、jawsICS 25.060.20Machine tools Dimensions and geometric tests for BRITISH STANDARDBS ISO 3442-2:2005Incorporating corrigendum no. 1BS ISO 3442-2:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 23 January 2006 BSI 2007ISBN 0 580 47545 1Ame
3、ndments issued since publicationAmd. No. Date Comments17091 Corrigendum No. 130 April 2007 Correction to supersession details.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard
4、 cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of ISO 3442-2:2005. Together with BS ISO 3442-1:2005 and BS ISO 3442-3:2007 it supersedes BS 1983-7:1994 (ISO 3442:1991) and BS 1983-6:1994 (ISO 9401:1991), which a
5、re withdrawn.The UK participation in its preparation was entrusted to Technical Committee MTE/1, Machine tools.A list of organizations represented on MTE/1 can be obtained on request to its secretary.Reference numberISO 3442-2:2005(E)INTERNATIONAL STANDARD ISO3442-2First edition2005-10-15Machine too
6、ls Dimensions and geometric tests for self-centring chucks with two-piece jaws Part 2: Power-operated chucks with tongue and groove type jaws Machines-outils Dimensions et essais gomtriques pour mandrins serrage concentrique et mors rapports Partie 2: Mandrins commande axiale assiste avec mors assem
7、blage cruciforme par tenon et languette BS ISO 3442-2:2005ii iiiContents Page Foreword iv 1 Scope . 1 2 Normative references . 1 3 Preliminary remarks . 1 3.1 Measurement units . 1 3.2 Geometric tests. 1 4 Accuracy classes 1 5 Sizes for interchangeability . 2 6 Geometric tests. 3 6.1 Spindle or face
8、 plate accuracy 3 6.2 Geometric tests and relevant tolerances for power-operated chucks 6 Bibliography . 11 BS ISO 3442-2:2005iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Interna
9、tional 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, governmental and non-governmental, in liaison with
10、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 drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical
11、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 Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to t
12、he 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 3442-2 was prepared by Technical Committee ISO/TC 39, Machine tools, Subcommittee SC 8, Work holding spindles and chucks
13、. Together with ISO 3442-1 and ISO 3442-3, this first edition of ISO 3442-2 cancels and replaces ISO 3442:1991 and ISO 9401:1991. ISO/TC 39/SC 8 decided to split ISO 3442:1991 into three parts, at the same time incorporating ISO 9401:1991. As soon as all three parts of ISO 3442 are published, ISO 34
14、42:1991 and ISO 9401:1991 will be withdrawn. ISO 3442 consists of the following parts, under the general title Machine tools Dimensions and geometric tests for self-centring chucks with two-piece jaws: Part 1: Manually operated chucks with tongue and groove type jaws Part 2: Power-operated chucks wi
15、th tongue and groove type jaws Part 3: Power-operated chucks with serrated jaws BS ISO 3442-2:20051Machine tools Dimensions and geometric tests for self-centring chucks with two-piece jaws Part 2: Power-operated chucks with tongue and groove type jaws 1 Scope This part of ISO 3442 specifies the size
16、s for interchangeability of self-centring, power-operated chucks with two-piece jaws (tongue and groove type) and describes, by reference to ISO 230-1, the geometric tests for such chucks. It also specifies the tolerances which apply to these tests. 2 Normative references The following referenced do
17、cuments 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 230-1:1996, Test code for machine tools Part 1: Geometric accuracy of ma
18、chines operating under no-load or finishing conditions 3 Preliminary remarks 3.1 Measurement units All dimensions and tolerances in this part of ISO 3442 are expressed in millimetres. 3.2 Geometric tests This part of ISO 3442 deals only with the verification of the rotational accuracy of the chuck a
19、nd the positioning of the assembling elements of the top jaws. It does not apply to other dynamic considerations, such as measurement of lack of balance during rotation, balancing or measurement of gripping power. The main purpose of these tests is to allow either top jaw mounting compatible with th
20、e machining accuracy of the chuck or precise setting for top jaws on the chuck after carrying out preliminary centring, straightening or locking operations on a jig separate from the machine. 4 Accuracy classes This part of ISO 3442 specifies only one accuracy class. For information, it should be no
21、ted that power-operated chucks can be provided, if necessary, with specially adjusted base or master jaws which are not interchangeable with other base or master jaws. In such cases, the chucks shall be marked. BS ISO 3442-2:20052 5 Sizes for interchangeability The sizes for interchangeability of po
22、wer-operated chucks are shown in Figure 1 and given in Table 1. aThreaded holes (see Table 1). Figure 1 Tongue and groove jaws BS ISO 3442-2:20053Table 1 Dimensions of power-operated chucks Nominal diameter of chuck d1 nom100 125 160 200 250 315 400 500 630 800 Type A A A A A B B C D D d1 5 % 100 12
23、5 160 200 250 315 400 500 630 800 Base or master jaw d2 M6 M8 M10 M12 M16 M16 M20 M20 M20 M20 e1 0,15 9,5 11,1 19 22,2 27 31,75 38,1 38,1 38,1 38,1 e2 38,1 38,1 38,1 h12,2 2,2 3 3 3 3 3 3 3 3 h3min. 4 4 5 5 5 5 8 8 8 8 l1h9 6,35 6,35 7,94 7,94 12,7 12,7 12,7 12,7 12,7 12,7 p13,2 3,2 4 4 4 4 7 7 7 7
24、p29 13 20 22 27 30 38 38 38 38 t1H8 7,94 7,94 12,675 12,675 19,025 19,025 19,025 19,025 19,025 19,025Top jaw h22,2 2,2 3 3 3 3 6 6 6 6 l2E9 6,35 6,35 7,94 7,94 12,7 12,7 12,7 12,7 12,7 12,7 p33,2 3,2 4 4 4 4 4 4 4 4 t2h8 7,94 7,94 12,675 12,675 19,025 19,025 19,025 19,025 19,025 19,025r aJaw open 38
25、 47,5 65 76,5 95 118 150 205 265,5 341,7 aDimension r is a reference value. 6 Geometric tests 6.1 Spindle or face plate accuracy Since some of the geometric tests to be carried out involve the chuck rotation, the chuck should be mounted on a test spindle, either directly, or by means of a face plate
26、. The radial run-out on the outside diameter of the test spindle or face plate and camming at any point on its face shall have been previously checked as in G01 and G02. BS ISO 3442-2:20054 Object Checking radial run-out of spindle nose or face plate. G01 Diagram Tolerance 0,005 Measured deviation M
27、easurement instruments Dial gauge. References to ISO 230-1:1996 and observations 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 is to be checked. BS ISO 3442-2:20055Object Checking camming of spindle nose or face plate
28、. G02 Diagram Tolerance 0,005 Measured deviation Measurement instruments Dial gauge. References to ISO 230-1:1996 and observations 5.63 BS ISO 3442-2:20056 6.2 Geometric tests and relevant tolerances for power-operated chucks Object Checking radial run-out of outer surface. G1 Diagram aIdentificatio
29、n to be marked when the master jaws are not interchangeable. Nominal diameter of chuck d1 nomTolerance x (full indicator movement) d1 nomu 125 125 d1 nomu 200 200 d1 nomu 315 315 d1 nomu 500 500 d1 nomu 800 0,02 0,03 0,04 0,05 0,06 Measured deviation For d1 nom= : Measurement instruments Dial gauge.
30、 NOTE Two measurements are possible: a) with the chuck mounted on a spindle or b) with a measuring machine. The results of the two measurements may differ depending on the tolerances on the spindle nose and the chuck. References to ISO 230-1 and observations For the purposes of this test, the chuck
31、may be mounted on a test spindle, either directly or by means of a face plate. In this case, see 6.1. BS ISO 3442-2:20057Object Checking camming of chuck face. G2 Diagram aIdentification to be marked when the master jaws are not interchangeable. Nominal diameter of chuck d1 nomTolerance x (full indi
32、cator movement) d1 nomu 125 125 d1 nomu 200 200 d1 nomu 315 315 d1 nomu 500 500 d1 nomu 800 0,02 0,03 0,04 0,05 0,06 Measured deviation For d1 nom= : Measurement instruments Dial gauge. NOTE Two measurements are possible: a) with the chuck mounted on a spindle or b) with a measuring machine. The res
33、ults of the two measurements may differ depending on the tolerances on the spindle nose and the chuck. References to ISO 230-1 and observations BS ISO 3442-2:20058 Object Checking equidistance between outer surfaces of top jaw locating key slots. G3 Diagram Nominal diameter of chuck d1 nomTolerance
34、x (full indicator movement) d1 nomu 125 125 d1 nomu 200 200 d1 nomu 315 315 d1 nomu 500 500 d1 nomu 800 0,03 0,04 0,05 0,08 0,12 Measured deviation For d1 nom= : Measurement instruments Dial gauge. References to ISO 230-1 and observations For the purposes of this test, the chuck may be mounted on a
35、test spindle, either directly or by means of a face plate. In this case, see 6.1. This test shall be carried out with the chuck tightened and with the base or master jaws locked on a dummy piece. The value of the clamping force shall be as specified by the manufacturer. BS ISO 3442-2:20059Object Che
36、cking deviation in dimension between top of master jaws and mounting chuck face. G4 Diagram aIdentification to be marked when the master jaws are not interchangeable. Nominal diameter of chuck d1 nomTolerance x (full indicator movement) d1 nomu 125 125 d1 nomu 200 200 d1 nomu 315 315 d1 nomu 500 500
37、 d1 nomu 800 0,03 0,04 0,06 0,08 0,10 Measured deviation For d1 nom= : Measurement instruments Dial gauge. References to ISO 230-1 and observations This test shall be carried out with the chuck tightened and with the base or master jaws locked on a dummy piece. The value of the clamping force shall
38、be as specified by the manufacturer. BS ISO 3442-2:200510 Object Checking permissible deviation between top jaw locating centre-line and parallel plane through centre-line of chuck. G5 Diagram Nominal diameter of chuck d1 nomTolerance x (full indicator movement) d1 nomu 125 125 d1 nomu 200 200 d1 no
39、mu 315 315 d1 nomu 500 500 d1 nomu 800 0,05 0,08 0,12 0,16 0,20 Measured deviation For d1 nom= : Measurement instruments Dial gauge. References to ISO 230-1 and observations For the purposes of this test, the chuck may be mounted on a test spindle, either directly or by means of a face plate. In thi
40、s case, see 6.1. The test shall be carried out with the chuck tightened and with the base or master jaws locked on a dummy piece. The value of the clamping force shall be as specified by the manufacturer. BS ISO 3442-2:200511Bibliography 1 ISO 1101, Geometrical Product Specifications (GPS) Geometric
41、al tolerancing Tolerances of form, orientation, location and run-out BS ISO 3442-2:2005BS ISO BSI389 Chiswick High RoadLondonW4 4AL3442-2:2005BSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Eur
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