JB/T 8009.3-1999 Round clamps for machine tool fixture parts and components

JB/T 8009.3-1999 JB/T 8009.3-1999 Machine tool fixture parts and components round clamp JB/T8009.3-1999 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 fixturesRound holddown
This standard specifies round holddowns with an outer diameter of 20~60mm. 2 Referenced standards
JB/T8009.3—1999
Replaces JB/T8009.3-1995
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/T699—1988 Technical conditions for high-quality carbon structural steel JB/T80441999 Technical requirements for machine tool fixture parts and components 3 Dimensions
The dimensions are shown in the following figure and table.
Dimensions of corresponding accessories
Approved by the State Machinery Industry Bureau on August 6, 1999 62
Implemented on January 1, 2000
4 Technical conditions
4.1 Material: 45 steel in accordance with the provisions of GB/T699. 4.2 Heat treatment: 35~40HRC.
4.3 Other technical conditions shall comply with the provisions of JB/T8044. 5 Markingbzxz.net
5.1 Marking example:
D=32mm round block:
Block 32JB/T8009.3—1999
JB/T8009.3-1999
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