1、BRITISH STANDARD BS 1127-1: 1990 EN 22568: 1989 ISO 2568:1988 Screwing dies and dienuts Part 1: Specification for hand- and machine-operated circular screwing dies and hand-operated die stocks This European Standard EN22568 has the status of a British Standard UDC 621.992.3:621.88.082BS1127-1:1990 T
2、his British Standard was published under the authority ofthe Board of BSI and comes intoeffect on 29 June1990 BSI 08-1999 First published November1943 First revision June1950 Second revision September1974 Second edition June1990 The following BSI references relate to the work on this standard: Commi
3、ttee reference MTE/4 Draft for comment87/72648 DC ISBN 0 580 18556 7 Cooperating organizations The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizations of the following Western European countries. Austria
4、Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standardiseringsraad Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Tec
5、hnological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxemburg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spai
6、n Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date of issue CommentsBS1127-1:1990 BSI 08-1999 i Contents Page C
7、ooperating organizations Inside front cover National foreword ii Brief history 2 Text of EN 22568 3 National appendix W Inside back cover National appendix X Inside back coverBS1127-1:1990 ii BSI 08-1999 National foreword This Part of BS1127 has been prepared under the direction of the Machine, Engi
8、neers and Hand Tools Standards Policy Committee and is the English language version of EN22568 “Hand- and machine-operated circular screwing dies and hand-operated die stocks”, published by the European Committee for Standardization (CEN). It is identical with ISO2568, published by the International
9、 Organization for Standardization (ISO). This Part of BS1127 together with Parts2,3,4 and5 supersedes BS1127:1974 which is withdrawn. BS1127 comprises the following Parts. Part 1: Specification for hand- and machine-operated circular screwing dies and hand-operated die stocks; Part 2: Specification
10、for hand- and machine-operated circular screwing dies for taper pipe threads; R series; Part 3: Specification for hand- and machine-operated circular screwing dies for parallel pipe threads; G series; Part 4: Terminology for circular screwing dies; Part 5: Specification for dimensions of hexagonal d
11、ienuts. BS1127 was first published in1943 as a war emergency standard and revised in1950 to include hexagonal dienuts and again in1974 to incorporate the change from inch to metric dimensions. The purpose of this present revision is to take account of changes made to related ISO Standards since1974
12、and the requirement of the United Kingdom as a CEN member to give European Standard EN22568:1989 the status of a national standard without alteration and withdraw any conflicting standards. Cross-references. Where there are British Standards either identical or technically equivalent to Internationa
13、l Standards quoted in this standard the relationship is given in National appendix X. 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 it
14、self confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theENtitle page, pages2 to14, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated.
15、 This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN22568 September 1989 UDC 621.992.3:621.88.082 Key words: Power operated tools, threading dies, die stocks, dimensions English version Hand- and machine-operated circular screw
16、ing dies and hand-operated die stocks (ISO 2568:1988) Filires rondes de filetage, main et machine, et porte-filire main (ISO2568:1988) Runde Hand- und Maschinen-Schneideisen undSchneideisen-halter (ISO2568:1988) This European Standard was accepted by CEN on6September1989 and is identical to the ISO
17、standard as referred to. CEN members are bound to comply with the requirements of the CEN/CENELEC Common Rules which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such na
18、tional standards may be obtained on application to the CEN Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language
19、and notified to CEN Central Secretariat has the same status as the official versions. CEN members are the national standards organizations of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and
20、 United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN1989 Copyright reserved to all CEN members Ref. No. EN22568:1989 EEN22568:1989 BSI 08-1999 2 Brief history Following c
21、onsideration of the results of a Primary Questionnaire among members, the CEN Technical Board decided in March1988 to submit the International Standard ISO 2568:1988, Hand- and machine-operated circular screwing dies and hand-operated die stocks. to the Formal Vote. This vote was positive. Statement
22、 The text of the International Standard ISO2568:1988 having been approved by CEN as a European Standard without any modification according to the Common CEN/CENELEC Rules, the following countries are bound to implement this standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Icela
23、nd, Ireland, Italy, Luxemburg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Brief history 2 1 Scope and field of application 3 2 ISO metric threads 4 3 ISO inch threads 6 4 Die stocks interchangeability dimensions 8 5 Marking 9 Annex A General table of
24、dimensional characteristics of circular screwing dies for metric and inch threads 10 Annex B Circular screwing dies for non-ISO inch threads 11 Figure 1 Metric screwing dies 4 Figure 2 Screwing dies UNC and UNF 6 Figure 3 Die stocks 8 Figure 4 Screwing dies BSW, BSF and BA 11 Table 1 4 Table 2 5 Tab
25、le 3 6 Table 4 7 Table 5 8 Table 6 10 Table 7 11 Table 8 12 Table 9 13EN22568:1989 BSI 08-1999 3 1 Scope and field of application This International Standard specifies the general dimensions of hand-operated and machine-operated screwing dies. These dimensions, established as a function of the threa
26、d diameter and pitch, are the following: outside diameter; thickness; cutting portion length; general dimensions of attachment. It also gives the interchangeability dimensions of hand-operated die stocks. This International Standard is applicable to screwing dies intended for the manufacture of the
27、following threads: ISO metric threads: coarse thread, from M1 to M68; fine thread, from M1 to M56. ISO inch threads: “Unified coarse” series (UNC), from No.164 to23/44; “Unified fine” series (UNF), from No.080 to11/2 12. The dimensional characteristics of circular screwing dies, as a function of thr
28、ead diameters and pitches, are given in Annex A. The general dimensions of screwing dies for threads which are not dealt with in this International Standard, and therefore are not recommended, are given for guidance only in Annex B. Annex B is applicable to screwing dies for inch threads of the foll
29、owing types: B.1 “British Standard Whitworth” (BSW). B.2 “British Standard Fine” (BSF). B.3 “British Association” (BA). All screwing dies are available in two classes, namely non-precision screwing dies; precision screwing dies.EN22568:1989 4 BSI 08-1999 2 ISO metric threads Screwing dies with: 2.1
30、Coarse thread Table 1 Figure 1 Metric screwing dies NOTE 1The shape of the V-groove is left to the discretion of the manufacturer. Screwing dies are generally supplied with two chamfers at the thread entrance, according to the material to be threaded and at the discretion of the manufacturer. NOTE 2
31、Tolerances: for precision screwing dies: on D:f10 on E: js12 for non-precision screwing dies: on D and E: the tolerances are left to the discretion of the manufacturer. * For an M16 die, this dimension is an exception to the general table (Table 6) given in Annex A.EN22568:1989 BSI 08-1999 5 2.2 Fin
32、e thread Table 2 For the shape of the V-groove and the tolerances, see notes1 and2 in2.1.EN22568:1989 6 BSI 08-1999 3 ISO inch threads Screwing dies with: 3.1 “Unified coarse” series (UNC) Table 3 Figure 2 Screwing dies UNC and UNFEN22568:1989 BSI 08-1999 7 3.2 “Unified fine” series (UNF) Table 4 NO
33、TE 1The shape of the V-groove is left to the discretion of the manufacturer. Screwing dies are generally supplied with two chamfers at the thread entrance, according to the material to be threaded and at the discretion of the manufacturer. NOTE 2Tolerances: for precision screwing dies: on D: f10 on
34、E: js12 for non-precision screwing dies: on D and E: the tolerances are left to the discretion of the manufacturer.EN22568:1989 8 BSI 08-1999 4 Die stocks Interchangeability dimensions (For metric and inch threads) Table 5 Figure 3 Die stocks Dimensions in millimetres D D10 E 2 E 3 E 4D 3 d 1 16 5 4
35、,8 2,4 11 M3 20 5 4,8 2,4 15 M4 7 6,5 3,4 25 9 8,5 4,4 20 M5 30 11 10 5,3 25 38 10 9 4,8 32 M6 14 13 6,8 45 14 13 6,8 38 M6 18 17 8,8 55 16 15 7,8 48 M8 22 20 10,7 65 18 17 8,8 58 M8 25 23 12,2 75 20 18 9,7 68 M8 30 28 14,7 90 22 20 10,7 82 M8 36 34 17,7 105 22 20 10,7 95 M10 36 34 17,7 120 22 20 10
36、,7 107 M10 36 34 17,7 00,2 EN22568:1989 BSI 08-1999 9 5 Marking 5.1 Screwing dies for ISO metric threads, the dimensions of which conform with those given in Table 1 and Table 2, shall be marked with the thread designation. Examples: A circular screwing die for coarse ISO metric threads (for example
37、 M1) shall be marked as follows: M1 A circular screwing die for fine ISO metric threads (for example M12 1,25) shall be marked as follows: M12 1,25 5.2 Screwing dies for ISO inch threads, UNC and UNF series and types BSW, BSF and BA, the dimensions of which conform with those given in Table 3, Table
38、 4, Table 7, Table 8 and Table 9, shall be marked with the thread designation. Examples: A screwing die for ISO inch threads, UNC series (for example1/4 20), shall be marked as follows: 1/420UNC A screwing die for ISO inch threads, UNF series (for example No.1228), shall be marked as follows: No.122
39、8UNF A screwing die for ISO inch threads, type BSW (for example1/2 12), shall be marked as follows: 1/212BSW A screwing die for ISO inch threads, type BSF (for example1/4 26), shall be marked as follows: 1/426BSF A screwing die for ISO inch threads, type BA (for example No.4), shall be marked as fol
40、lows: BA No.4 5.3 Where tools comply in all respects with the relevant International Standards, the symbol ISO may be appended to the mark at the discretion of the manufacturer.EN 22568:1989 10 BSI 08-1999 Annex A General table of dimensional characteristics of circular screwing dies for metric and
41、inch threads (This annex forms an integral part of the standard.) Table 6 EN22568:1989 BSI 08-1999 11 Annex B Circular screwing dies for non-ISO inch threads (This annex does not form an integral part of the standard.) Screwing dies with: B.1 For “British Standard Whitworth” threads (BSW) Table 7 Fi
42、gure 4 Screwing dies BSW, BSF and BA Dimensions in millimetres Designation d nom. Pitch . D E C b a 1/8 40 BSW 3,175 0,635 20 5 0,5 4 0,2 3/1624 BSW 4,762 1,058 7 0,6 0,5 1/4 20 BSW 6,35 1,27 25 9 0,8 5 5/1618 BSW 7,938 1,411 3/8 16 BSW 9,525 1,588 30 11 1 1 7/1614 BSW 11,112 1,814 1/2 12 BSW 12,7 2
43、,117 38 14 1,2 6 9/16 12 BSW 14,288 5/811 BSW 15,875 2,309 45 18 11/1611 BSW 17,462 3/410 BSW 19,05 2,54 7/89 BSW 22,225 2,822 55 22 1,5 8 2 18 BSW 25,4 3,175 1 1/87 BSW 28,575 3,629 65 25 1,8 1 1/47 BSW 31,75 1 1/26 BSW 38,1 4,233 75 30 1 3/4 5 BSW 44,45 5,08 90 36 2 241/2 BSW 50,8 5,644 2 1/4 4 BS
44、W 57,15 6,35 105 36 2,5 10 2 1/2 4 BSW 63,5 120 36 2 3/4 31/2 BSW 69,85 7,257EN22568:1989 12 BSI 08-1999 B.2 For “British Standard Fine” threads (BSF) Table 8 Dimensions in millimetres Designation d nom. Pitch . D E C b a 3/16 32BSF 4,762 0,794 20 7 0,6 4 0,5 7/32 28BSF 5,556 0,907 1/4 26BSF 6,35 0,
45、977 25 9 0,8 5 9/32 26BSF 7,144 5/16 22BSF 7,938 1,154 3/8 20BSF 9,525 1,27 30 11 1 1 7/16 18BSF 11,112 1,411 1/2 16BSF 12,7 1,588 38 10 1,2 6 9/1616BSF 14,288 5/8 14BSF 15,875 1,814 45 14 11/1614BSF 17,462 3/4 12BSF 19,05 2,117 7/8 11BSF 22,225 2,309 55 22 1,5 8 2 1 10BSF 25,4 2,54 1 1/89BSF 28,575
46、 2,822 65 25 1,8 1 1/4 9BSF 31,75 1 3/8 8BSF 34,925 3,175 1 1/2 8BSF 38,1 75 30 1 5/8 8BSF 41,275 1 3/4 7BSF 44,45 3,629 90 36 2 27BSF 50,8 2 1/4 6BSF 57,15 4,233 105 36 2,5 10 2 1/2 6BSF 63,5 120 36 2 3/4 6BSF 69,85 NOTE 1The shape of the V-groove is left to the discretion of the manufacturer. Scre
47、wing dies are generally supplied with two chamfers at the thread entrance, according to the material to be threaded and at the discretion of the manufacturer. NOTE 2Tolerances: for precision screwing dies: on D: f10 on E: js12 for non-precision screwing dies: on D and E: the tolerances are left to t
48、he discretion of the manufacturer.EN22568:1989 BSI 08-1999 13 B.3 For “British Association” threads (BA) Table 9 NOTE 1The shape of the V-groove is left to the discretion of the manufacturer. Screwing dies are generally supplied with two chamfers at the thread entrance, according to the material to
49、be threaded and at the discretion of the manufacturer. NOTE 2Tolerances: for precision screwing dies: on D: f10 on E: js12 for non-precision screwing dies: on D and E: the tolerances are left to the discretion of the manufacturer.14 blankBS1127-1:1990 BSI 08-1999 National appendix W The United Kingdom participation in the preparation of this European Stand
