JB/T 8012.1-1999 Machine tool fixture parts and components hook-shaped clamps

JB/T 8012.1-1999 JB/T 8012.1-1999 Machine tool fixture parts and components Hook-shaped clamp JB/T8012.1-1999 Standard download decompression password: www.bzxz.net

ICS 25. 080. 01
Machinery Industry Standard of the People's Republic of China
The parts and units of jigs and fixtures1999-08-06Promulgated
State Machinery Industry Bureau
Implementation on 2000-01-01
Machinery Industry Standard of the People's Republic of China
Parts and units of jigs and fixturesHook clampplate
JB/T 8012.11999
Replaces JB/T 8012.1-1995
This standard specifies Type A and Type C hook clampplates with nominal diameters of 6.6~25mm, and Type B hook clampplates with thread specifications of M6~M24.
2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 6991988
JB/T8044—1999
3 Dimensions
Technical conditions for high-quality carbon cable structural steel
Technical requirements for machine tool fixtures and other parts and components
The dimensions are shown in the following figure and table.
Approved by the State Bureau of Machinery Industry on August 6, 1999 and implemented on January 1, 2000
Basic dimensions
Limit deviation
Basic dimensionsbzxZ.net
Limit deviation
Basic dimensions
Limit deviation
Matching screws
Technical conditions
4.1Material: 45 steel as per GB/T699. 4.2Heat treatment: 35~40HRC.
JB/T8012.1-1999
4.3Other technical conditions as per JB/T8044. 5 Marking
5.1 Marking example:
A-type hook-shaped pressure plate with nominal diameter = 13mm and 4 = 35mm: pressure plate A13×35JB/T8012.1—1999
B-type hook-shaped pressure plate with d-M12 and A = 35mm: pressure plate BM12×35JB/T8012.1—1999116
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