JB/T 8012.1-1999 JB/T 8012.1-1999 Machine tool fixture parts and components Hook-shaped clamp JB/T8012.1-1999 Standard download decompression password: www.bzxz.net
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ICS 25. 080. 01 Machinery Industry Standard of the People's Republic of China The parts and units of jigs and fixtures1999-08-06PromulgatedbZxz.net State Machinery Industry Bureau Implementation on 2000-01-01 Machinery Industry Standard of the People's Republic of China Parts and units of jigs and fixturesHook clampplate JB/T 8012.11999 Replaces JB/T 8012.1-1995 This standard specifies Type A and Type C hook clampplates with nominal diameters of 6.6~25mm, and Type B hook clampplates with thread specifications of M6~M24. 2 Referenced standards 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 6991988 JB/T8044—1999 3 Dimensions Technical conditions for high-quality carbon cable structural steel Technical requirements for machine tool fixtures and other parts and components 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 Basic dimensions Limit deviation Basic dimensions Limit deviation Matching screws Technical conditions 4.1Material: 45 steel as per GB/T699. 4.2Heat treatment: 35~40HRC. JB/T8012.1-1999 4.3Other technical conditions as per JB/T8044. 5 Marking 5.1 Marking example: A-type hook-shaped pressure plate with nominal diameter = 13mm and 4 = 35mm: pressure plate A13×35JB/T8012.1—1999 B-type hook-shaped pressure plate with d-M12 and A = 35mm: pressure plate BM12×35JB/T8012.1—1999116 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.