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1、JAPANESE I NDUSTRIAL STANDARD Chucks for Portable Electric Drills Translated and Published by Japanese Standards Association Printed in Japan JIS Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/
2、2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*4b34 84 W 4933608 00l141Lb 3 W Translation without guarantee standard in Japanese is to be evidence in the event of any doubt arising, the original Copyright Japanese Standards Association Provided by IHS
3、 under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- UDC 62-229.32:621.953 JAPANESE INDUSTRIAL STANDARD J I S Chucks for Portable Electric D r i l l s B 4634-1984 Type
4、 Ordinary type Light Taper system weight type Screw thread system . . 3, Shape and Dimensions Symbol E EL ELB or LB 3.1 The shape and dimensions of the chucks shall be in accordance with Table 2, 1. Scope This Japanese Standard specifies the chucks for portable electric d r i l l s , hereinafter ref
5、erred to as the “chucks“, and their handles. Remarks 1. The d r i l l chucks for machine tools are specified i n J I S B 6001. The units and numerical values given i n i n t h i s standard are i n accordance w i t h the International System of Units (SI), and are appended for reference. 2. Types The
6、 types shall be classified as given i n Table 1. Applicable Standards and Reference Standard: See page Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or network
7、ing permitted without license from IHS -,-,- J I S B*4b34 84 4933608 0014118 7 E 4 5.5 6.5 _ j . . 6.5 0 8.5 _ _ 8. 9.5 98 9 10.5 _ 19 19 22 28 31 33 38 46 55 60 22 - 26 - 31 _ 38 44 28 30 32 20 - In accord- 18 ance with Appendix 16 - Nominal dimension 6.5 10 13 Di (Max. 1 35 41 47 D z “ler- ances L
8、 F G (9 . :F IAvailable Unified range Of 1 drill Basic s ion (Max.) dimen- - (Min.) threaded diameter + f l 82 6.5 erFrIn ance accord-In with ance acco with 1 o. 8to10 to 6*5 Appendix Appendix 2 to13 1.2to13 8.5 28 30 18 2 B 4634-1984 Table 2 Internal thread /Over I / Jacobs taper or. unified Handle
9、 hole, 3 places bAj fine thread I . L 4 Remark: Figure indicates an example, but it does not specify the construction. Ordinary Type Unit: mm Jacobs Over taper ivailable tange of irill iiameter D z I Nominal dimens ion !oler- inces - f l - lo. of Diamet- teeth ral 1 D, li thread pitch 26 I 22 1 o. 5
10、to 5 5 I -_ I 6.5 O. 5.to 6.5 O. 8 to10 10 1.2to13 13 I l4 I 32 3.2 to16 16 Unit: mm Light Weight Type I Basic dimefi- sion 22 - 26 32 “ 33 - Note (1) Regarding the dimension of G , penetration is also permissible. Copyright Japanese Standards Association Provided by IHS under license with JSALicens
11、ee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 B 4634-1984 Nominal dimension gt Screw ktihpht type 5 6.5 6.5 10 10 13 - 13 - 16 3.2 The shapes and dimensions of the handles shall be i n ac
12、cordance with Table 3. No. of ? J teeth Diametral A f Basic Toler Basic Toler Basic (thveadc) Pitch dimension ances dimension1 ances d5ension ances 65 4 5 12 22 75 5.5 G 12 20 90 Cl G*5 -0.12 8 f o. 5 12 18 12 16 - o . 02 12 14 110 8 120 9 Furthermore, i f the handle pin is not liable t o come off,
13、it may not be fixed to the handle shaft. Table 3 A Remark: Figure indicates an example, but it does not specify the construction. 3.3 specified i n JIS B 1701, and the combinations shall be i n accordance with Table 4 . Gears of the cover and handle shall be of the involute gear profile Copyright Ja
14、panese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS B*4634 84 4933608 OOL4120 5 Nominal dimension 5 6.5 6.5 10 10 13 1
15、3 - - 16 4 B 4634-1984 2446 5.6 66“48 2312 H 5. 1 6514 6.2 6812 2148 7. 1 6927 2033 8.3 6927 2033 Table 4 Handle 4. Qualities 4.1 Appearance In appearance, the chuck shall harmful flaws, burrs, rust and other defects, and be free from cracks, be excellent i n finish. 4.2 Functions When the cover is
16、rotated using the handle, the claws shall be protruded and retracted smoothly and uniformly, and the other parts shall also work smoothly. 4.3 Hardness The hardness of the parts (claws) of the chuck which grip the d r i l l shall be HRC 53 and over or HV 560 and over, and the toothed parts of the co
17、ver and handle shall be HRC 30 and over or HV 300 and over. 4.4 Contacting Surface of Jacobs Taper Hole of Chuck The contacting surface of the Jacobs taper hole of the chuck, when it has been measured i n accordance with 6.2, shall be not less than 75 % 4.5 Dimensions of Jacobs Taper Hole The dimens
18、ions of the Jacobs taper hole of the chuck, when the Jacobs taper gauge specified in Appendix has been inserted, shall be such that the deviations on discrepancy of the position of the basic diameter (Dl shall be i 1 mm. 4.6 Dimensions of Unified-Fine Threaded Portion The dimensions of the unified-f
19、ine threaded parts of the chuck shall be i n accordance with Appendix . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license f
20、rom IHS -,-,- J I S 884634 84 4733608 0014121 7 6.5 10 5 B 4634-1984 6.5 o. 35 3.43) 10 O. 7 6.86) 4.7 tested in accordance with 6.4 with applying the torsional moment given i n Table 5, shall be such that neither the test bar could s l i p nor any ab- normality could cause on each part. Gripping Fo
21、rce The gripping force of the chuck, when it has been 13 16 Table 5 Unit : kgf- m N *in) Nominal sizes (um) O. 18 I. 76 13 1.3 02.7 1 2.5 24.5 1 - Name of part Mater ia1 4.8 Circumferential Run-out The circumferential run-out of the chuck, when tested i n accordance with 6.5, shall be not more than
22、0.2 nun. Body Cover Claw Internal threads Handle shaft Handle pin 5. Materials S 10 C of JIS G 4051 S 10 C of JIS G 4051 S 35 C of JIS G 4051 S 35 C of J I S G 4051 S 10 C of JIS G 4051 SS 4 1 of JIS G 3101 The materials of respective parts of the chuck shall be as given i n Table 6, or those materi
23、als which are attainable the qualities equal or superior t o those specified i n 4. 6. Testing Methods 6.1 Hardness The hardness of every part of the chuck shall be measured i n accordance with JIS Z 2245 or J I S Z 2244, using the testing machine specified in SIS B 7726 or JIS B 7725. 6.2 Contactin
24、g Surface of Jacobs Taper Hole The contacting surface of the Jacobs taper hole of the chuck shall be i n vertigated of its contacting condition by inserting the Jacobs taper gauge specified i n Appendix, being smeared with red load, into the Jacobs hole, and turning it uniformly. 0 Copyright Japanes
25、e Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*4634 84 4733bO 0034322 9 e31 6 B 4634-1984 6.3 Dimensions of Unifie
26、d Fine Screw Threads The dimensions of the unified fine screw threads shall be tested on the effective diameters and the inner diameters, using the 2 B l i m i t gauge for screw thread specified i n JIS B 0256. 6.4 Gripping Force The gripping force of the chuck shall be tested by applying the torsio
27、nal moment given i n Table 5 t o the test bar, holding the test bar by the chuck as given i n Fig. 1, and fixing the shank, after three handle holes have been fastened uniformly with single hand. Fig. 1 T e s t bar Unit: mm Nominal sizes Ordinary Light weight tvoe I tvoe 6 . 5 1 6.5 10 I 10 13 I 13
28、_ _ _ Diameter of (di) test bar Basic dimens ion f o. 5 Remark: The hardness of the test bar shall be not less than HRC 55. 6.5 Circumferential Run-out The circumferential run-out of the chuck shall be measured, after the rotatable shank has been attached t o the chuck as given i n Fig. 2 , and afte
29、r the test bar has been held and three handle holes have been fastened uniformly i n sequence with hand, applying Grade 2 dial gauge specified i n JIS B 7503 t o the position as given i n Fig. 2. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11
30、11111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B84b34 84 4933bQA O O L 4 L 2 3 O 7 B 4634-1984 Table 2 5 10 13 15 6.5 10 13 16 Colerances f o. 1 Unit: mm Overall 1 of test b Basic dimension 80 90 110 140
31、 155 Xth (la) Distance from. t i p of claw to tolerances I dial gauge. (4) 60 I I 70 85 f 3 I Test bar Remark: The test bar, when run-outs of 3 places, including the centre and both ends, have been measured -during rotation, being supported at its both centres, shall be such that the maximum differe
32、nce between respective readings is not more than 0.01 mm. 7. Inspection a The inspection of the chuck shall be carried out on the shape and dimensions, appearance, functions, hardnesses, contacting condition of the Jacobs taper hole part, dimensions of the Jacobs taper hole part, dimensions of unifi
33、ed-fine threaded parts, gripping force and run-out, and the results shall conform t o the requirements of 3 . , 4 . 1 t o 4.8. 8 . Designation The chuck shall be designated by the number of standard or title of standard, nominal size and symbol of type. Example: JIS B 4634 5 E Chuck for portable ele
34、ctric d r i l l 5 E Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*4b34 8 4 W 4933b08 O034324 2 8
35、 B 4634-1984 9. Marking The body or cover of the chuck shall be marked with the following infor- mation by indelible means: (1) Nominal size (2) Symbol indicating type (3) For the light weight type (screw type), nominal designation of screw thread (2) ( 4 ) Manufacturers name or its abbreviation Not
36、e (2) It shall be in accordance with the designation of unified fine screw thread of Appendix Table 3 . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networ
37、king permitted without license from IHS -,-,- J I S B*4634 84 4933608 0014125 4 E 9 B 4634-1984 . Appendix + 1. Scope A Q o- V This Appendix specifies the dimensions of Jacobs tapers, tolerances for Jacobs taper gauges, and unified-fine threaded parts. Id Di Taper No. I 2. Dimensions and Tolerances
38、Jacobs Nominal s i z e s of applicable chuck taper I li I I The dimensions of Jacobs tapers, tolerances for Jacobs taper gauges and dimensions of unified-fine threaded parts shall be i n accordance with Appendix Tables 1 t o 3. Shorter s i z e of 2 Appendix Table 1. Dimensions of Jacobs Tapers . . 1
39、3.940 12.386 19.050 O. 081 55 10 3 20.599 18.951 30.956 O. 053 25 Unit: mm 16 6 1 I 9.754 I 8.469 1 16.669 I 0.07709 I 5 and6.5 17.170 15.852 25.400 O. 051 91 13 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not fo
40、r Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 10 G 4634-1984 Taper No. 1 Shorter size of 2 Appendix Table 2. Deviations for Jacobs Taper Gauges Unit: mm D li Taper f o. 002 f0.00006 f o. O10 . - , 2 . 0 0 i 0 . 0 1 . - Designation of nominal
41、unified fine thread 3/8-24 UNF 1/2-20 UNF D i li !z . Nominal sizes of (Min.) (Min.) (Min.) applicable chuck 9.67 14 3 6.5 and 10 12.85 15 3 10 and 13 f O. 003 + I I f0.00006 I f0.00005 Appendix Table 3. Dimensions of Unified-Fine Threaded Part Unif ied-f ine screw threads Copyright Japanese Standar
42、ds Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,-,- 11. B 4634-1984 Applicable Standards: J I S B 0208-Unified Fine Screw Threads JIS B
43、0212-Limits of Sizes and Tolerances for Unified Fine Screw Threads JIS B 0256 Limit Gauges for Unified Fine Screw Thread JIS B 1701-Involute Gear Tooth Profile and Dimensions JIS B 6001-Drill Chuck for Machine Tools JIS B 7503-Dial Gauges Reading i n 0.01 mm JIS B 7725-Vickers Hardness Testing Machi
44、nes JIS B 7726-Rockwell and Rockwell Superficial Hardness Testing Machines J I S G 3101-Rolled Steel for General Structure JIS G 4051-Carbon Steels for Machine Structural U s e JIS Z 2244-Method of Vickers Hardness Test JIS Z 2245-Method of Rockwell and Rockwell Superficial Hardness Test Reference S
45、tandard: J I S Z 8203-SI Units and the Use of their Multiples and of Certain Other Units Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted
46、without license from IHS -,-,- a a a B 4634-1984 Edition 1 Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 1954-07-20 Date of Revision: 1984-03-01 Date of Public Notice in Official Gazette: 1984-03-03 Investigated by: Japanese Industrial Standards Com
47、mittee Divisional Council on Machine Tools Technical Committee on Working Tools This English translation is published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan 0 JSA, 1985. Printed i n Tokyo by Hohbunsha Co.,Ltd. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 03:45:20 MDTNo reproduction or networking permitted without license from IHS -,