GB/T 3668.13-1983 Dimensions of flanges and end face transmission keys for mounting multi-axis boxes on common components of modular machine tools GB/T3668.13-1983 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Common components for modular machine tools
Flanges and end drive keys for mounting multi-axis boxes
Modular ualits for machise tool constructlon-Tenon drives and flanges for mounting multi-splndle heads-Dimensions This standard is equivalent to IS03476-1975 "Common components for modular machine tools - UDC 621.9--28
GB 8668.1--88
IS0 3476-1975
-Flanges and end drive keys for mounting multi-axis boxes". When this standard is adopted as equivalent, the dimensions of flanges and end drive keys for mounting multi-axis boxes with a nominal diameter of the drive shaft of 20 mm are added. 1 Scope
This standard specifies the interchangeable dimensions of flanges and end face transmission keys for mounting multi-axis boxes of the following common parts of modular machine tools: Sleeve-fed drilling heads!
Sleeve-fed drilling heads with adjustable slides for tool change. 2 Dimensions
The dimensions shall comply with the provisions of the following figures and tables. Issued by the State Bureau of Standards on May 9, 1988bzxz.net
Implemented on March 1, 1984
Nominal diameter of drive shaft
Additional notes:
Match diameter
Bolt hole distribution circle diameter
GB3668.13-83
Outer diameter
This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard was drafted and managed by the Dalian Modular Machine Tool Research Institute of the Ministry of Machinery Industry. The main drafter of this standard was Cao Weiqian.
Screw size matching the through hole d
Bolt size
Drive key width
Drive key length
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