JB/T 8020.2-1999 Thick stoppers for machine tool fixture parts and components

JB/T 8020.2-1999 JB/T 8020.2-1999 Thick stopper for machine tool fixture parts and components JB/T8020.2-1999 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 fixturesThick dog
This standard specifies thick dogs with specifications of 10~36mm. 2 Reference standards
JB/T 8020.2-1999
Replaces JB/T8020.2—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 are subject to revision. Parties using this standard should discuss the possibility of using the latest versions of the following standards. GB/T699-1988 Technical conditions for high-quality carbon 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 Machinery Industry Bureau on August 6, 1999 and implemented on January 1, 2000
Limit deviation
4 Technical conditions
4.1 Material: 45 steel in accordance with the provisions of GB/T699. 4.2 Heat treatment: 40~45HRC. bzxZ.net
4.3 Other technical conditions shall comply with the provisions of JB/T8044. 5 Marking
5.1 Marking example:
b=18mm thick stopper:
Stopper 18JB/T8020.2-1999
JB/T-8020.2—1999
Limit deviation
Matching screw
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