JB/T 8031.2-1999 JB/T 8031.2-1999 Machine tool fixture parts and components square tool block JB/T8031.2-1999 Standard download decompression password: www.bzxz.net
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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 fixturesRectangular tool aligner This standard specifies the square tool aligner with a length of 34 mm and a width of 30 mm. 2 Reference standardsbzxz.net JB/T8031.2-1999 Replaces JB/T8031.2—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 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 Technical requirements for machine tool fixture parts and components JB/T8044—1999 3 Dimensions The dimensions are shown in the figure below. Ij0. 005A Approved by the State Bureau of Machinery Industry on 1999-08-06214 2X6H7(+911) Implemented on 2000-01-01 4 Technical conditions JB/T 8018.1~8044—1999 4.1 Material: 20 steel in accordance with the provisions of GB/T699. 4.2 Heat treatment: carburizing depth 0.8~1.2mm, 58~64HRC. 4.3 Other technical conditions in accordance with the provisions of JB/T8044. 5 Marking 5.1 Marking example: Square tool block: Tool block JB/T8031.2—1999 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.