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1、JIS B%b339 92 = LI933608 0502833 2 JIS UDC 621.9-229.2:621.9-229.33 JAPANESE INDUSTRIAL STANDARD Machining centers - Tool shanks and retention knobs JIS B 6 3 3 9 - 1 9 9 2 Translated and Published by Japanese Standards Association Printed in Japan 10 s Copyright Japanese Standards Association Provi
2、ded by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- In the event of any doubt arising, the original Standard in Japanese is to be final authority. Copyright
3、 Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- i J I S BXb339 92 4933608 0502833 _ b - UDC 621.9-229.2:621.9-229.3
4、3 JAPANESE INDUSTRIAL STANDARD J I S Machining centers - Tool shanks and retention knobs B 6339-1992 1 . Scope This Japanese Industrial Standard specifies the tool shanks and retention knobs t o be used mainly for the machining centers with automatic tool exchangers. Remarks 1 . To the tool shanks s
5、pecified i n the text of this Standard, the spindle ends specified i n the text of J I S B 6340 shall conform. r 2. Those which are the same i n technical contents as the tool shanks specified i n IS0 7388/1 and ISO/DIS 7388/3 are specified i n Annex 1 . For the tool shanks specified i n this Annex
6、1, the spindle ends specified i n the Annex of JIS B 6340 shall conform. 3. Those which are the same i n technical contents as the retention knobs specified i n IS0 7388/2 and ISO/DIS 7388/3 are specified i n Annex 2. To the retention knobs specified i n this Annex 2, the retention knobs for tool sh
7、anks specified i n Annex 1 shall conform. 4. The retention knobs specified i n the text of this Standard are of collet system i n tensile mechanism. 5. The applicable standards t o this Standard are given i n Attached Table 1 . 6, The equivalent International Standards to this Standard are given i n
8、 the following: IS0 7388/1-1983 Tool shanks with 7/24 taper for automatic tool changers - Part 1: Shanks Nos. 40, 45 and 50 - Dimensions IS0 7388/2-1984 Tool shanks with 7/24 taper for automatic tool changers - Part 2: Retention knobs for shanks Nos. 40, 45 and 50 - Dimensions and mechanical charact
9、eristics 2. Shapes and dimensions The shapes and dimensions of the tool shanks specified i n the text of this Standard shall be i n accordance with Fig. 1 and Table 1, and the shapes and dimensions of the retention knobs shall be i n accordance with Fig. 2 and Table 2. Copyright Japanese Standards A
10、ssociation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- I- JIS B*h339 92 W 4933h08 0502834 8 , 2 B 6339-1992 Fig. 1 . Tool shanks I Copyright Ja
11、panese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*b339 92 m Ll933bO8 0502835 T m Shank part 3 B 6339-1992 Di ()
12、31.750 38.100 44.450 57.150 69.850 88,900 107.950 li 10.15 48.4 56.4 65.4 82.8 101.8 126.8 161.8 r (Max. 1 0.5 1 1, f 0 . 5 O I l3 1 6 7 9 11 16.1 17 20 21 19.3 I 25.7 26 I 31 34 0.12 38 43 53 I 73 0.2 85 107 I 135 20 13.6 22 25 30 35 40 45 . 14.6 16.6 21.2 23.2 26.2 28.2 8 10 12 15 18 20 Table 1 .
13、Tool shanks Unit: mm Nominal number I BT30 I BT35 I BT40 I BT45 I BT50 I BT55 I BT60 Threaded I d: H8 part 14 Il9 I23 127 1 33 12.5 I 17 21 I 25 I 31 M12 I M16 1 M20 I M24 1 M30 24 56 0.5 I I I 15 (Min.) I t O -0.2 16.3 I 19.6 I 22.6 I 29.1 I 35.4 I 45.1 I 60.1 . 46 I 53 I 63 I 85 I 100 125 I 155 I$
14、- f O . l I x 41 5 f 0 . 1 I xi O IY f0.4 2 I 3 O I -0.4 2 3 I Tolerances on 7/24 taper angle( *)AT, I Small end- t0.00391 +0.00451 +0.00411 +0.00521 +0.005 11 +0.00631 f0.0065 O O O O O O O 17.633 I 21.650 I 25.375 I 33.000 I 40,158 I 51.917 I 60.758 56.144 I 65.679 I 75.679 I 100.215 I 119.019 I 1
15、47.823 I 180.359 Notes (I) Lh is the basic dimension, and is the diameter on gauge face. (2) The tolerances on 7/24 taper angle are i n accordance with+#T4 (grade AT4 specified i n JIS B 0614). Remarks 1 . 4 may be provided with clearance for grinding finish of fitting part. 2. The screw threads sha
16、ll be i n accordance with JIS B 0205. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS B*b339 92 4933b0
17、8 0502836 I H 4 B 6339-1992 3 . Between the di part and the d z part of the small end part of the tool shank may be connected by the straight line of 30“, combination of the straight line of 30“ and of 60“ or a curved line i n respect t o the center of axis. 4. The dimensional tolerances on the part
18、 not specified particularly shall be the tolerance grade m (medium grade) specified in JIS B 0405. Fig. 2. Retention knobs Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo rep
19、roduction or networking permitted without license from IHS -,-,- 5 B 6339-1992 Penetration hole Table 2. Retention knobs Unit: mm 13 O 18 -4 19 23 25 3 6 IS 3 4 5 7 d6 4 5 7 8.5 10 12 -0.1 BT30 BT35 BT40 BT45 Nominal number of corre-. -6pooding tool shank Note ( 3, In the case where a penetration ho
20、le is to be provided, the diameter shall be taken as d6 BT50 BT55 BT60 Remarks 1 . The screw threads shall be in accordance with JIS B 0205. 2. The dimensional tolerances of the part not specified particularly shall be the tolerance grade m (medium grade) specified in JIS B 0405. 3. Materials and ha
21、rdnesses 3 . 1 Materials The materials of the tool shanks and retention knobs specified in the text of this Standard shall be in accordance with the following: (1) The material of the tool shanks shall be SCM 415 specified in JIS G 4105 or that having performances equal to or superior to this. ( 2 )
22、 The material of the retention knobs shall be SNCM 420 specified in JIS G 4103 or that having performances equal to or superior to this. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:2
23、3:33 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*b339 92 4933608 8502838 5 E I 6 B 6339-1992 3 . 2 Hardness The surface hardness of the tool shanks and retention knobs specified i n the text of this Standard shall be i n accordance with the following: (1) The su
24、rface of the tool shank shall be processed with carburization hardening. be HRC 52 t o 58, measuring by the testing method specified in JIS Z 2245, and its depth shall be 0.8 t o l m m . However, the threaded part should preferably be prevented from being carburized. Furthermore, for example, in the
25、 case where it is inevitable on account of functions, such as a collet chuck holder which is of a r o l l lock system, the hardness may be increased t o HRC 62. The surface of the retention knob shall be processed with carburization hardening. hardened part shall be HRC 52 t o 58, measured by the te
26、sting method specified i n JIS Z 2245, and its depth shall be 0.8 t o 1 mm. However, the threaded part should preferably be prevented from being carburized. The hardness of the carburization hardened part shall (2) The hardness of the carburization 4. Designation The tool shanks and retention knobs
27、shall be designated by the number of standard and nominal numbers. Example 1 . In the case of the tool shanks specified i n the text of this Standard. JIS B 6339 BT40 7 TNominal number In the case o the tool shanks specified i n the Annex of this Standard J I S B 6339 IT40 L T Nominal number In the
28、case of the retention knobs specified in the text of this Standard. JIS B 6339 l - - T Nominal number In the case of the retention knobs specified i n the Annex of this Standard JIS B 6339 40PA Number of standard Example 2, Number of standard Example 3. Number of standard Example 4. Nominal number N
29、umber of standard Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- 7 B 6339-1992 5. Marking 5.1 General The
30、 following information shall be marked by an indelible method such as electric pen and stamp. either one of them shall be marked. However, regarding (3) and (4), (1) Manufacturers name or its abbreviation (2) Nominal number ( 3 ) Serial number (4) Date of manufacture or its abbreviation 5.2 Tool sha
31、nk The tool shank shall be marked with the information specified i n 5.1, along the outer periphery from the key way position of outer periphery of the flange with the shank small end part facing upwards, 5.3 Retention knob The retention knob shall be marked w i t h the information specified i n 5.1
32、, on the outer periphery of the flange part or the part of width across f l a t s with the grip part of the tension mechanism facing upwards. a a Example 1, In the case of the tool shank specified i n the text of this Standard. O00 BT40 coo Serial number or date of manufacture or its abbreviation T
33、T Nominal number -Manufacturers name or its abbreviation . Example 2. In the case of the tool shank specified In the Annex of this Standard 3 - IT40 I I S e r i a l number or date of manufacture or its abbreviation l-Nominal number Manufacturers name or its abbreviation - Example 3, In the case of t
34、he retention knob specified in the text of this Standard. L S e r i a l number or date of manufacture or its abbreviation Nominal number -Manufacturers name or its abbreviation Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing
35、, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*b339 92 D 4933bO8 0502840 3 I 8 B 6339-1992 .Example 4 . In the case of the retention knobs specified in the Annex of this Standard O00 Serial number or date of manufacture
36、or its abbreviation 1 Nominal number Manufacturers name or its abbreviation Attached Table 1 . Applicable standards JIS B 0205-Metric Coarse Screw Threads JIS B 0405-General Tolerances - Part 1: Tolerances for Lhear and Angular Dimensions Without Individual Tolerance Indications JIS B 0614-System of
37、 Cone Tolerances JIS B 6340-Machining Centers - Dimensions of Spindle Noses JIS G 4103-Nickel Chromium Molybdenum Steels JIS G 4105-Chromium Molybdenum Steels JLS Z 2245-Method of Rockwell and Rockwell Superficial Hardness Test IS0 1947-1973 System of cone tolerances for conical workpieces from C =
38、1 : 3 to 1:500 and lengths from 6 t o 630 mm ISO. 7388/1-1983 Tool shanks with 7/24 taper for automatic tool changers - Part 1 : Shanks Nos. 40, 45 and 50 - Dimensions Tool shanks with 7/24 taper for automatic tool changers - Part 2 : Retention knobs for shanks Nos. 40, 45 and 50 - Dimensions and me
39、chanical characteristics IS0 7388/2-1984 ISO/DIS 7388/3 Tool shanks with 7/24 taper for automatic tool changers - Part 3: Retention knobs for shank No. 30 - Dimensions, conicity tolerances and mechanical characteristics Copyright Japanese Standards Association Provided by IHS under license with JSAL
40、icensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*b337 72 4933608 0582843 5.- 9 B 6339-1992 . Annex 1 7/24 taper tool shanks for automatic tool changers 1 . Scope This Annex 1 spec
41、ifies the 7/24 taper tool shanks for automatic tool changers . Remarks 1 . This Annex 1 is that which has been drawn up changing the style without changing technical contents of the parts related to tool shanks, among the IS0 7388/1 and ISO/DIS 7388/3 . 2 . To the tool shanks specified in this Annex
42、 1, the spindle ends specified in the Annex of JIS B 6340 shall conform. Furthermore, the tool shanks specified in this Annex do not conform to the spindle ends specified in the text of JIS B 6340 . 3. The applicable standards to this Annex 1 are given in the following: JIS B 6340-Machining Centers
43、- Dimensions of spindle noses IS0 1947-1973 System of cone tolerances for conical work- pieces from C = 1:3 to 1:500 and lengths from 6 to 630 mm IS0 7388/1-1983 Tool shanks with 7/24 taper for automatic tool changers - Part 1 : Shanks Nos. 40, 45 and 50 - Dimensions ISO/DIS 7388/3 Tool shanks with
44、7/24 taper for automatic tool changers - Part 3 : Retention knobs for shank No. 30 - Dimensions, conicity tolerances and mechanical characteristics 2. Shapes and dimensions The shapes and dimensions of the tool shanks shall be in accordance with Annex 1 Fig. 1 and Annex 1 Table 1 . Copyright Japanes
45、e Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- I J I S B*b339 92 W 4933b08 0502842 7 Nominal number D (maximum) 10 B 6339-
46、1992 IT30 IT40 IT45 IT50 46,05 50 63 80 Annex 1 Fig. 1 . Tool shanks Tool Gauge face I/ eference -of tool cutting edge Y enlarged figure X enlarged figure P U / Gauge face / 7 (1i x enlarged f igure 1 Notes (,) ( ( 3 The clearance for grinding is optional by the manufacturer, DL is the basic dimensi
47、on, and it expresses the diameter at the gauge face. D3 employs the value given i n the following table according t o the respective essentials. Unit: mm (4) (5) The diameter (0,) of cylindrical shaped connecting part is DLSDZSDI t 0.05 mm. The spot facing may be one of the 2 types of the R shape ch
48、amfer of radius Rior 30 chamfer, but the diameter is t o be d, Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 00:23:33 MDTNo reproduction or networking permitted without license from IHS -,-,- Nominal number Shank . I