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1、INTERNATIONAL STANDARD IS0 236/1-1976 (E) AMENDMENT SLIP Published 1977-02-1 5 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEXnSHAPOLlHAR OPTAHIi3AUHR il0 CTAH34PTif3AUliM .ORGANISATION INTERNATIONALE DE NORMALISATION Hand reamers MODI FICATION TO FOREWORD (hide front cover) The IS0 member body
2、for Bulgaria has now expressed its approval of this International Standard. Bulgaria should therefore be included in the list of countries whose member bodies have approved the document. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Tec
3、hnical Standards 1/9972545001 Not for Resale, 04/27/2007 20:01:07 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .hEX*LlYHAPOAHAJl OPrAHAJAULiX iI0 CTAHLIAPTM3AUHH .ORGANISATION INTERNATIONALE DE NORMALISATION Hand reamers Als
4、oirs main First edition - 1976-1 1-15 - UDC 621.95.02 Ref. No. IS0 236/1-I976 (E) w u) fi - . - m Descriptors : tools, hand tools, reamers, parallel shanks, dimensions, dimensional tolerances. u) N Price based on 4 pages Copyright International Organization for Standardization Provided by IHS under
5、license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 20:01:07 MDTNo reproduction or networking permitted without license from IHS -,-,- FOR EWO R D IS0 (the International Organization for Standardization) is a worldwide federation of national standards institute
6、s (IS0 Member Bodies). The work of developing International Standards is carried out through IS0 Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmenta
7、l and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as International Standards by the IS0 Council. International Standard IS0 236/1 results
8、from the subdivision into two parts of IS0 Recommendation R 236-1961. It was drawn up by Technical Committee iSOBC29, Srna/ tools, and was circulated to the Member Bodies in November 1975. It has been approved by the Member Bodies of the following countries : Australia Austria Belgium Canada Czechos
9、lovakia Egypt, Arab Rep. of France Germany Hungary India South Africa, Rep. of Israel Sweden Italy Switzerland Japan Turkey Korea, Rep. of United Kingdom Mexico U.S.A. Netherlands U.S.S.R. Poland Roman ia No Member Body expressed disapproval of the document. This International Standard, together wit
10、h International Standard IS0 236/1 I, cancels and replaces IS0 Recommendation R 236-1961, of which they constitute a technical revision. O International Organization for Standardization, 1976 Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under licens
11、e with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 20:01:07 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STAN DARD IS0 236/1-1976 (E) 4853903 0020873 2 - 236 PT - - 1-76 - 114 1114 4314 12 Hand reamers 1114 ? 1 I1132 4314 f
12、 1 . 5 f1116 12 I 2 i-3132 40 I3 f 1 1 % 1 SCOPE AND FIELD OF APPLICATION This International Standard specifies the dimensions of hand reamers. It includes three tables giving respectively : - the recommended diameters and the corresponding dimensions in millimetres; - the recommended diameters and
13、the corresponding dimensions in inches; - the corresponding dimensions, in millimetres and in inches, set out as functions of diameter steps. Tolerances on lengths, cutting diameters and shank diameters are also specified. 2 INTERCHANGEABILITY The numerical tables have been drawn up in such a way as
14、 to ensure that the standard dimensions in millimetres and inches correspond as closely as possible. To this end, the complete range of diameters has been subdivided into a number of steps, the iimits of which have been derived from the preferred number series for the metric values and have been con
15、verted directly to obtain the inch values; the lengths remain the same for the metric and the inch values within a given step. The recommended diameters in the two systems of units of measurement differ, however, and the number of recommended diameters, in a given step, also differs in one system fr
16、om that in the other. 4 SHANKS The shank diame er is der ical to the cutting portion diameter. The driving squares are in accordance with IS0 237 as indicated in tables 2 and 3. 5 TOLERANCEST) 5.1 Cutting portion Tolerance on diameter d measured immediately behind the lead : m6 (for reamers supplied
17、 from stock). 5.2 Shank Tolerance on shank diameter : h9 5.3 Lengths Tolerances on lengths shall conform to the values given in table 1. TABLE 1 - Tolerances on lengths Total overall length I Cutting edge length I1 Tolerances 1 over i;cluding 120 3 1 5 3 1 5 1 O00 over i!including I mm , in -1 3 REF
18、ERENCES IS0 236/1 I, Long fluted machine reamers, Morse taper shanks. IS0 237, Diameters of shanks and sizes of driving squares for rotating tools with parallel shanks. I SO 52 1, Machine chucking reamers with parallel shanks or Morse taper shanks. For special tolerances, the lengths of reamers may
19、be chosen from the next larger or smaller range but the above tolerances will apply. Example-: For the diameter 4mm, length II may be 35mm with 1 being 71 mm or length Il may be 41 mm with I being 81 mm (see table 4). 1) For dimensions in inches, direct conversion into inches of the metric value. I
20、Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 20:01:07 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 236/1-1976 (E) a 18,OO 20,oo 22,40 25.00 28
21、,OO 31.50 35,50 40,OO 45.00 50,OO 56,OO -_- 23b PT 1-76 14 22 24 26 28 31 34 38 42 46 51 56 1 4851903 0020874 4 I 6 DIMENSIONS 2 _ . . Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/
22、2007 20:01:07 MDTNo reproduction or networking permitted without license from IHS -,-,- TABLE 3 - Recommended diameters and corresponding dimensions in inches I 1 3/4 2 1/4 2 5/8 3 a 14 0,049 0,079 0,098 3/16 0,124 1 /4 5/32 5/32 1 1/2 0,630 I 3/16 I 1 3/4 25/32 I 7/32 I 1 7/8 1/16 13/16 3 ?/i6 3 11
23、/16 3 15/16 4 3/16 4 1/2 0,157 0,177 0.1 97 0,220 9/32 5/16 0,248 11/32 114 4 718 I 0,280 I 13/32- 2 9/32 5/16 1 1 /32 3/8 (13/321 7/1 6 (15/32) 1 /2 9/16 5/8 11/16 5 5/8 I 0,354 I 15/32 2 1/8 2 1/4 2 7/16 2 5/8 2 13/16 3 3 3/6 3 7/16 3 11/16 1 3/8 (1 7/16) 1 1/2 (1 5/8) d 5 5/8 11 3/16 -6 12 1 5 1/
24、4 i i i 0.31 5 7/1 6 5 1 315/16 1 715/16 6 6 7/16 6 7/8 7 7/16 7/8 I 4 3/16 I 8 1/2 0,394 1 /2 0.44 1 9/16 0,492 5/8 0,551 23/32 - * (1 1/16) 9 1/16 “_I (1 5/16) 5 1/4 t 10 7/16 (1 7/8) f 8 3/8 1611/16 a 14 0,709 0,787 15/16 0,882 1 1/32 f 0,984 1 3/32 1,102 1 7/32 t 1,240 111/32 1,398 1,575 121/32
25、1 13/16 * 2,480 I 2 7/16 Sizes in brackets should be avoided wherever possible. 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 20:01:07 MDTNo reproduction or networking permit
26、ted without license from IHS -,-,- IS0 236/1-1976 (E) + Diameter steps d lengths lengths over I including I over I including 4 I I 11 I i mm 1.50 I 1.70 in rnm in 0.052 O 0.059 1 20 41 25/32 1 5/8 0.059 1 0.066 9 21 44 13/16 1 3/4 . 1,70 1.90 1,90 0.066 9 0,074 8 23 47 29/32 1 7/8 2.12 0.074 8 0.083
27、 5 25 50 1 2 I 3.75 I 4.25 I 0.1476 I 0.1673 I 38 I 76 I 1 1/2 I 3 I 2,12 2,36 2.65 3.00 3.35 2.36 0.083 5 0.092 9 27 54 1 1/16 2 1/8 2,65 0.092 9 0.104 3 29 58 1 1/8 2 1/4 3 , O O 0.104 3 0.118 1 31 62 1 7/32 2 7/16 3,35 0.118 1 0.131 9 33 66 1 5/16 2 5/8 3.76 0.131 9 0.147 6 35 . 71 1 3/8 2 13/16
28、_ _ _ _ 4,25 4.75 4,75 0.167 3 0.187 O 41 81 1 5/8 3 3/16 5.30 0.187 O 0.208 7 44 87 1 3/4 3 7/16 4 11,80 13,20 15,OO 17,OO 19.00 21,20 13.20 0.464 6 0.51 9 7 76 152 3 6 15,OO 0.519 7 0.590 6 81 163 3 3/16 6 7/16 17,OO 0.590 6 0.669 3 87 175 3 7/16 6 7/8 19,oo 0.669 3 0.748 O 93 188 3 11/16 7 7/16 2
29、1,20 0.748 O 0.834 6 100 201 3 15/16 7 15/16 23,60 0.834 6 0.929 1 107 215 4 3/16 8 1/2 23,60 26,50 30,OO 33.60 26,50 0.929 1 1 .O43 3 115 231 4 1/2 9 1/16 30,OO 1 .O43 3 1.181 1 1 24 247 4 7/8 9 3/4 33,50 1.181 1 1.3189 133 265 5 1/4 10 7/16 37,50 1.3189 1.476 4 142 284 5 5/8 11 3/16 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/27/2007 20:01:07 MDTNo reproduction or networking permitted without license from IHS -,-,-
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