GB/T 3668.9-1983 Dimensions of spindle components for common components of modular machine tools

GB/T 3668.9-1983 Dimensions of spindle components for common components of modular machine tools GB/T3668.9-1983 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Common Components for Modular Machine Tools
Spindle Component Dimensions
Modular units for machine tool constrution-Splndleunlts-Dimensions
This standard is equivalent to ISO3590-1976 "Common Components for Modular Machine Tools" with the addition of the dust spindle center height when equivalently adopted. Fan Kang
This standard specifies the relevant interchangeable dimensions of the following spindle components of modular machine tools: Sleeve-fed drilling heads
Sleeve-fed drilling heads with adjustable slides for tool change, single-axis drilling heads;
Single-axis milling heads,
Single-axis boring and facing heads.
2 Dimensions
2.1 The dimensions shall comply with the provisions of Figures 1 to 5 and Tables 1 to 5. 2.2 The bottom length Li of the single-spindle head can be reduced by one level according to the R10 priority system. 3 Sliding sleeve feed drilling head
Type and size are shown in Figure 1 and Table 1.
Spindle components》
UDC 621.9-233
GB3668.9-83
-IS03590-1976
Type A: The end of the straight-hole spindle shall comply with the provisions of GB3668.10-83 "Multi-axis box spindle end and adjustable connecting rod size for common components of modular machine tools".
Type B: The flange and end face transmission key for mounting the multi-axis box shall comply with the provisions of GB3668.13-83 "Dimensions of flange and end face transmission key for mounting the multi-axis box for common components of modular machines". National Bureau of Standards 1983-05-09 Issued
1984-0301 Implementation
Electric Drill
GB 3668.9--88
Electric Motor
Figure 1 Sliding Sleeve Feed Drilling Head
(1/2 View) (【/2 Standard Drawing)
Note: () The side screw hole spacing ls should be distributed according to 25mm or integer multiples of 25mm (determined by the manufacturer). The tolerance of the first and last hole spacing is +0.2mm. ② The shape and installation position of the electric drill, as well as the specific structure and size of the component body are determined by the manufacturer. It can be positioned with double pins.
Sleeve-fed drilling head dimensions
Total width
Nominal center
Bottom length
Screw wheel hole
Spindle center
Center height
(recommended)
Spindle gingival hole
Spindle extension
Note: When the standard is equivalent, the dimensions of the sleeve-fed drilling head with a nominal size of 125mm are added. The types and dimensions of the sleeve-fed drilling head with an adjustable slide for tool change are shown in Figure 2 and Table 2.
Drive series
Type A: The end of the straight-hole spindle shall comply with the provisions of GB3668.10-83. Type B: The flange and end face transmission key for installing the multi-axis box shall comply with the provisions of GB3668.13-83. Zilan disk
Bolt size
GB3668.9--83
Figure 2 Sleeve-fed drilling head with adjustable slide for tool change
(1/2 view) (1/2 view)
To: ① The spacing between the planing bolt holes should be distributed according to 25mm or an integer of 25mm (determined by the manufacturer). The spacing tolerance of the last hole is: 0.2mm. ②The model and installation position of the motor, as well as the specific structure and size of the component body shall be determined by the manufacturer. ③It can be positioned with a double pin.
Table 2 Dimensions of the sleeve-fed drilling head with an adjustable slide for tool change Total width bottom
Nominal size
Borrow bolt hole spindle!
Center to center height
(recommended)
Drive shaft flange
Adjustment amount slide
Note: when this standard is adopted equivalently, add the dimension of the sliding sleeve feed drilling head with an adjustable slide seat for tool change with a nominal dimension of 125mm. mm
Bolt dimension
5Single-axis drilling head
For types and dimensions, see Figure 3 and Table 3.
GB 3668.9—83bzxZ.net
Straight hole ± shaft end according to GB3668.10—83. Figure 3 Single-axis drilling head
Note: (The spacing of the side bolt holes should be distributed according to 25mm or integer multiples of 25mm (determined by the manufacturer). The tolerance of the spacing is +0.2mm. ②The shape and installation position of the motor, as well as the structure and size of the component body are determined by the manufacturer. ③Double pin bumps can be used.
Nominal size"
Total width
Single-axis milling head
Length of the surface
Type and size see Figure 4 and Table 4
Spindle hole
Single-axis drilling head size
Spindle extension
Bolt hole center distance
7/24 Taper hole spindle end according to JB2324-78 "Milling machine spindle end size". Soil center height
Bolt size
GB3668.9-83
Figure 4 Single-axis milling head
Note: ① Side bolt hole distance! : Should be according to 25mm or integer multiples of 25mm (determined by the manufacturer). The tolerance of the distance between the first and last holes is ±0.2mm. ② The nut and installation position of the motor, as well as the structure and size of the component body are confirmed by the manufacturer. ③ Double pins can be used for positioning.
Table 4 Single-axis milling head dimensions
Nominal dimensions
Total width
Single-axis boring and facing head
Bottom length
Type and dimensions are shown in Figure 5 and Table 5.
7/24 taper hole
Spindle end No.
Spindle extension
Bolt hole center distance
Spindle center height
Bolt size
Type A: Screw-connected spindle end, according to the provisions of A and A. types in JB2521-79 "Dimensions of flange-type lathe spindle ends". Type B: Bayonet-connected spindle end, according to the provisions of C type in JB2521-79. Type C: Cam-locked spindle end, according to the provisions of D type in JB2521-79. This type of component is not suitable for sticking and boring processes.
GB 3668.9--83
Electric motor
Figure 5 Single-axis boring and facing head
Note, ① The spacing l of the bolt holes on the side should be distributed according to 25mm or integer multiples of 25mm (determined by the manufacturer). The spacing tolerance of the first and last holes is ±0.2mm. ② The model and installation position of the motor, as well as the structure and size of the component body are determined by the manufacturer: ② Double pins can be used for positioning.
Table 5 Single-axis boring and facing head dimensions
Nominal size
Total spot
Additional notes:
Bottom length
Spindle number
This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China. Dust shaft extension
This standard was drafted and managed by the Dalian Combined Machine Bead Research Institute of the Ministry of Machinery Industry. Bolt hole center distance
Spindle center height
Butterfly bolt size
The main drafters of this standard are Cao Weiqian, Fan Guoqing and Li Fu. From the date of implementation of this standard, the former Ministry of Machinery Industry standards JB1530-75 "Nominal size parameters and interchangeable size of milling heads of common components of modular machine tools", JB1531-75 "Nominal size, parameters and interchangeable size of boring heads of common components of joint machine tools", JB1533-75 Nominal size, parameters and interchangeable size of facing heads of common components of modular machine tools", and JB12508-78 "Nominal size, parameters and interchangeable size of common components of modular machines and sliding sleeve power heads" shall be invalid.
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