BS 1660-4-1989 ISO 297-1988.pdf

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1、BRITISH STANDARD BS 1660-4: 1989 ISO 297:1988 Machine tapers Part 4: Specification for spindle noses and tool shanks with self-release 7/24 tapers ISO title: 7/24 tapers for tool shanks for manual changing UDC 621.9-229.22:621.886.4 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT

2、+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 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 Board of BSI and comes into effect on 31 May 1989 BSI 09-1999 First pub

3、lished September 1988 First revision May 1989 The following BSI references relate to the work on this standard: Committee reference MTE/7 Drafts for comment 87/77517 DC and 86/78124 DC ISBN 0 580 17271 6 Committees responsible for this British Standard The preparation of this British Standard was en

4、trusted by the Machine, Engineers and Hand Tools Standards Policy Committee (MTE/-) to Technical Committee MTE/7, upon which the following bodies were represented: Advanced Manufacturing Technology Research Institute Gauge and Tool Makers Association Institution of Production Engineers Milling Cutte

5、r Association Twist Drill and Reamer Association Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 BSI 09-1999i Contents Page Committees responsibleInside front c

6、over National forewordii 1Scope1 2Normative references1 3Interchangeability1 4Tapers for spindle noses2 5Tapers for tool shanks5 6Tool shank collars6 Table 1a) Designation and dimensions3 Table 1b) Thread specification3 Table 2 Complementary dimensions4 Table 3a) Designation and dimensions5 Table 3b

7、) Thread specification6 Table 4 Designation and dimensions6 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 ii BSI 09-1999 National foreword This Part of BS 1660 has been prepared unde

8、r the direction of the Machine, Engineers and Hand Tools Standards Policy Committee. It is identical with ISO 297:1988 “7/24 tapers for tool shanks for manual changing” which was prepared jointly by Technical Committees ISO/TC 39 and ISO/TC 29 of the International Organization for Standardization (I

9、SO) and in the development of which the United Kingdom played an active part. This Part of BS 1660 includes tapers of sizes 55, 65, 70, 75 and 80. Size 55 tapers, however, are non-preferred. Other Parts of BS 1660 currently published are as follows. Part 1: Specification for shanks and sockets with

10、self-holding tapers (Morse and metric 5 %); Part 2: Specification for reduction sleeves and extension sockets for tools with Morse taper shanks; Part 3: Specification for turret sockets and reduction sleeves with tapped ends for tools with Morse taper shanks; Part 5: Specification for adaptors with

11、7/24 internal and external tapers; Part 6: Specification for adaptors with external 7/24 tapers for tools with Morse taper shanks; Part 7: Specification for extension adaptors with external 7/24 tapers for tools with Morse taper shanks; Part 9: Specification for cotter slots; Part 10: Specification

12、for drill chuck tapers (Jacob and short Morse). BS 1660-1 to BS 1660-10 collectively superseded BS 1660:1972 which was withdrawn in 1988. This Part supersedes BS 1660-4:1988 and BS 1660-8:1988 which are withdrawn. Terminology and conventions. The text of the International Standard has been approved

13、as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especially to the following. The comma has been used as a decimal marker. In British Standards it is current practi

14、ce to use a full point on the baseline as the decimal marker. Wherever the words “International Standard” appear, referring to this standard, they should be read as “British Standard”. Inch dimensions. In accordance with the UK policy of metrication, inch dimensions given in this standard are not us

15、ed and are included for information purposes only. The Technical Committee has reviewed the provisions of ISO 4762:1977, to which reference is made in the text, and has decided that they are acceptable for use in conjunction with this standard. A related British Standard to ISO 4762:1977 is BS 4168

16、“Hexagon socket screws and wrench keys: metric series” Part 1:1981 “Specification for hexagon socket head cap screws”. Cross-references International standardCorresponding British Standard ISO 7388-1:1983BS 6607 Tool shanks with 7/24 taper for automatic tool changers Part 1:1985 Specification for sh

17、anks Nos. 40, 45 and 50 (Identical) Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 BSI 09-1999iii Additional information. The concentricity tolerance should be of AT4 quality as given in BS 4500 “ISO limits and fits” Part 5 “

18、Systems of cone tolerances for conical workpieces from C = 1 : 3 to 1 : 500 and lengths from 6 mm to 600 mm”. 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

19、 Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, 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 inco

20、rporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c

21、) BSI BS 1660-4:1989 BSI 09-19991 1 Scope This International Standard specifies the dimensions, in millimetres1), of 7/24 tapers for spindle noses and tool shanks and equipment for manual changing. It also specifies the external diameters of the collars for these tool shanks and equipment, and the p

22、ositioning of the front face of the collar with respect to the taper in the case of attachment by the front face. NOTE 1The collars have two seatings on the periphery into which the two driving tenons on the machine spindle are fitted and are intended for the transmission of the spindle rotational m

23、ovement to the tool or equipment. NOTE 2Shank attachment can be carried out either by conventional rear clamping, using a clamping fastener screwed on the rear side of the shank, or by front clamping of the collar using a locking device mounted on the machine spindle and applying the tool or equipme

24、nt on to the spindle. Only in the latter case is it necessary for the positioning of the front face of the collar with respect to the taper gauge plane having the basic diameter D1 to be accurately specified. This type of taper is designed for various types of machine tool spindle noses as well as f

25、or the corresponding tool shanks and equipment. The dimensions for tool shank tapers automatic changers are specified in ISO 7388-1. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the t

26、ime of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed below. Members of IEC and ISO mainta

27、in registers of currently valid International Standards. ISO 4762:1977, Hexagon socket head cap screws Product grade A. ISO 7388-1:1983, Tool shanks with 7/24 taper for automatic tool changers Part 1: Shanks Nos. 40, 45 and 50 Dimensions. 3 Interchangeability This International Standard provides, as

28、 regards threads, two entirely distinct types of product according to the type of thread, M or UN. In order to distinguish between those two types, it is important that the component itself be marked with the corresponding thread symbol, each national standards body being free to adopt either of the

29、 two threads in its national standard. For all other dimensions, however, the products manufactured either to metric or to inch values are strictly interchangeable, though not absolutely identical. Acceptance conditions, if provided for in national standards, should therefore be such as to allow for

30、 the acceptance of products specified either in inch or in metric values. 1) The inch values will be determined after acceptance of the metric values. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 2 BSI 09-1999 4 Tapers for

31、spindle noses All dimensions are in millimetres. NOTEFor the spindle nose No. 60, the tenons can be fixed by two screws, as for the spindle noses Nos. 65 to 80. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 BSI 09-19993 Tabl

32、e 1a) Designation and dimensions Table 1b) Thread specification Designation No. TaperRecess b TenonExternal centring D1 z d1 L d2b1 vcnK D2 mf g1 ax a H12min. min. c min.max.min.max.h5min. d min. 3031,75 0,417,473 1715,9 0,068816,516,569,832 12,554M10 160,15 4044,45 0,425,3 100 1715,9 0,06882319,588

33、,882 1666,7 M12 200,15 4557,15 0,432,4 120 21190,069,59,53019,5 101,61880M12 200,15 5069,85 0,439,6 140 2725,4 0,08 12,5 12,53626,5 128,5719101,6 M16 250,2 5588,90,450,4 178 2725,4 0,08 12,5 12,54826,5 152,425120,6 M20 300,2 60107,95 0,460,2 220 3525,4 0,08 12,5 12,56145,5 221,4438177,8 M20 300,2 65

34、133,35 0,475265 42320,11616755828038220M24 360,25 70165,10,492315 42320,12020906833550265M24 450,25 75203,20,4 114400 56400,125251088640050315M30 560,32 802540,4 140500 56400,131,5 31,5 13610650050400M30 630,32 a D1: Basic diameter defining the gauge plane. b Opening for traction bar. c Assembly of

35、the tenon in the slot: M6-h5 fit. d Thread diameter g1: this is either a metric thread M with coarse pitch or, if expressly stated, a UN thread according to Table 1b). In every case, the appropriate symbol M or UN shall be marked on the component. Designation No. 30404550556065707580 g1UN 0,375-16 U

36、N 0,500-13 UN 0,500-13 UN 0,625-11 UN 0,750-10 UN 0,750-10 UN 1,000-8 UN 1,000-8 UN 1,250-7 UN 1,250-7 O 2 - - Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 4 BSI 09-1999 For noses Nos. 30 to 60 NOTEFor spindle nose No. 60,

37、the tenons can be fixed by two screws, as for the spindle noses Nos. 65 to 80. For noses Nos. 65 to 80 Table 2 Complementary dimensions Designation No. TenonSlot Screws ISO 4762 Chamfer b1hkd5d4ql7l8seg2l6l7u max.max.max. 0,2 30 See Table 1a) 1616,56,4 10,471,625M69M6 162 401619,56,4 10,471,633M69M6

38、 162 451919,58,4 13,491,640M812M8 202 502526,5 131913249,5 M12 18M12 253 552526,5 131913261,5 M12 18M12 253 602545,5 131913284M12 18M12 253 2545,5 1319132211,7 273M12 1822 M12 253 65325817251728152,590M16 2528 M16 354 70406817251736162,5106M16 2536 M16 454 75508621312142222,5130M20 3042 M20 554 8063

39、10621312158242,5160M20 3058 M20 654 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 BSI 09-19995 5 Tapers for tool shanks Table 3a) Designation and dimensions 1) Optional groove. Without groove, cylindrical joining surface wit

40、h diameter D3 = D1 0 0,5 Designation No. TaperCylindrical tenon CollarThread D1zLl1d1pd3ybtwd2d4gl2l3l4l5 a h12a10H12max.max. b min. min. 3031,75 0,468,448,417,4316,5 1,6 16,1 16,2 0,12 13 16M12 243462,95,5 4044,45 0,493,465,425,35241,6 16,1 22,5 0,12 17 21,5 M16 324385,28,2 4557,15 0,4 106,882,832,

41、46303,2 19,3 290,12 21 26M20 405396,8 10 5069,85 0,4 126,8 101,839,68383,2 25,7 35,3 0,226 32M24 4762 115,3 11,5 5588,90,4 164,8 126,850,49483,2 25,7 450,226 36M24 4762 153,3 11,5 60107,95 0,4 206,8 161,860,2 10583,2 25,7 600,232 44M30 5976 192,8 14 65133,35 0,4 246202751272432,4 720,338 52M36 7089

42、23016 70165,10,4 296252921490432,4 860,338 52M36 7089 28016 75203,20,4 37030711416 110540,5 104 0,350 68M48 92115 35020 802540,4 46939414018 136640,5 132 0,350 68M48 92115 44920 a D1: Basic diameter defining the gauge plane. b Thread diameter g: this is either a metric thread M with coarse pitch or,

43、 if expressly stated, a UN thread according to Table 3b). In every case, the appropriate symbol M or UN shall be marked on the component. 0 0 5, Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 6 BSI 09-1999 Table 3b) Thread sp

44、ecification 6 Tool shank collars All dimensions are in millimetres. Table 4 Designation and dimensions Designation No. 30404550556065707580 gUN 0,500-13 UN 0,625-11 UN 0,75-10 UN 1,000-8 UN 1,000-8 UN 1,25-7 UN 1,375-6 UN 1,375-6 UN 1,750-5 UN 1,750-5 Designation No. D1ia,bDD4bjb,c 0,1max.min. 3031,

45、759,650369 4044,4511,6635011 4557,15 15,2 806813 5069,8597,578 165588,917,2130110 60107,9519,2156136 65133,3522195By agreement between customer and supplier 70165,124230 75203,227280 8025434350 a The distance between the front face of the collar and the gauge plane having the basic diameter D1 (and

46、not the great base plane of the taper). b These values are only prescribed for those tools that are intended for attachment on the collar front face. c Tool fixing area. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4:1989 BSI 09-1

47、999 Publications referred to See national foreword. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 24 06:14:45 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 1660-4: 1989 ISO 297:1988 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body

48、responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest

49、amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automati