JB/T 8020.1-1999 Thin stoppers for machine tool fixture parts and components

JB/T 8020.1-1999 JB/T 8020.1-1999 Thin stopper for machine tool fixture parts and components JB/T8020.1-1999 Standard download decompression password: www.bzxz.net

ICS 25. 080. 01
Mechanical Industry Standard of the People's Republic of China
The parts and units of jigs and fixtures
The parts and units of jigs and fixtures1999-08-06Promulgated
State Bureau of Machinery Industry
Implementation on 2000-01-01
1 Scope
Mechanical Industry Standard of the People's Republic of China
Parts and units of jigs and fixturesThin dog
The parts and units of jigs and fixturesThin dog
This standard specifies thin dogs with specifications of 10~36mm. 2 Reference standards
JB/T8020.1-1999
Reference JB/T8020.1—1995
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/T6991988 Technical conditions for high-quality carbon turbulent structural steel JB/T8044—1999 Technical requirements for machine tool fixture parts and components 3 Dimensions
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
4 Technical conditions
JB/T8020.1-1999
Basic dimensions
Material: 45 steel in accordance with the provisions of GB/T699.
4.2 Heat treatment: 40-45HRC.
4.3 Other technical conditions in accordance with the provisions of JB/T8044. 5 Marking
5.1 Marking example:
Thin stopper with b=18mm:
Stopper 18JB/T8020.1--1999www.bzxz.net
Limit deviation
Matching screw
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