JB/T 8009.4-1999 Machine tool fixture parts and components arc-shaped clamps

JB/T 8009.4-1999 This standard is a revision of JB/T 8009.4-95 "Smooth Surface Clamps for Machine Tool Fixture Parts and Components". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard specifies arc-shaped clamps with a length of 32 to 125 mm and a width of 10 to 20 mm. This standard was first issued in 1981 as GB 2174-80, and was first revised to GB/T 2174-91 on April 30, 1991, and adjusted to JB/T 8009.4-95 in April 1996. JB/T 8009.4-1999 Arc-shaped Clamps for Machine Tool Fixture Parts and Components JB/T8009.4-1999 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 fixtures1999-08-06Published
State Machinery Industry Bureau
Implementation on 2000-01-01
Mechanical Industry Standard of the People's Republic of China
Parts and units of jigs and fixturesCurve holddown
This standard specifies the curved holddown with a length of 32~125mm and a width of 10~20mm. Cited Standards
JB/T8009.4—1999
Replaces JB/T8009.4—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/T 699—1988
JB/T8044—1999
3 Dimensions
Technical conditions for high-quality carbon structural steel
Technical requirements for machine tool fixture parts and components
The dimensions are shown in the following figure and table.
Approved by the State Machinery Industry Bureau on August 6, 199964bzxZ.net
Implemented on January 1, 2000
JB/T 8009.4—1999
Dimensions of accessories
4 Technical conditions
Limit deviations all
4.1 Material: 45 in accordance with the provisions of GB/T699. 4.2 Heat treatment: 35~40HRC,
JB/T8009.4—1999
4.3 Other technical conditions in accordance with the provisions of JB/T8044. 5 Marking
5.1 Marking example:
A-type arc-shaped pressure block with B=14mm:
L=60mm,
Pressing block A60x14JB/T8009.4-1999
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