GB/T 3668.10-1983 Dimensions of spindle ends and adjustable connecting rods for multi-axis boxes of common components for modular machine tools GB/T3668.10-1983 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Common parts for modular machine tools
Dimensions of multi-axis box spindle noses and adjustable adapters Modular anits for machine tool construction Splindle noses and adjustable adaptors for multi-axis box spindle heads-Dtmerstons
This standard is equivalent to 1S02905-1974 (Scope of common parts for modular machine tools
UDC 621.9-23
GB 3668.10—83
ISO2905--1974
-Multi-spindle box spindle ends and adjustable adapters" This standard specifies the dimensions of the multi-spindle box spindle ends of combined machine tools equipped with adjustable adapters and quick-change adapters. This standard also specifies three types of adjustable adapters for tools such as drills, reamers and hole inserts with taper shanks. 2 Spindle ends
2.1 Nominal dimensions
The nominal dimensions are specified in terms of the nominal aperture of the spindle end. The following nine nominal sizes are used:
810, 12, 16, 20, 2528.36 and 48mm. 2.2 Interchangeability
The spindle ends shall be suitable for adjustable adapters manufactured in accordance with the regulations in Chapter 3. 2.3 Dimensions
Dimensions shall conform to the provisions of Figure 1 and Table 1.
2.4 Locking screws
For safety, the locking screws after tightening should not exceed the outer diameter of the spindle end. Therefore, if necessary, the locking screws should be shortened according to the position of the adjustable connecting rod in the spindle end hole during grinding. National Bureau of Standards 1983-05-09
Implementation 1984-03-01
GB3668.10—83
Locking screws
Spindle end
Spindle end dimensions
Note: (i) For nominal diameters 8-12, the diameter d is determined according to the design requirements, and the values ​​listed in the table are for reference only.
For nominal diameters 16-4, when a quick-change connecting rod is used, the tolerance of d is f 7 ②The values ​​of the diameters in the table are for reference only.
③Two locking screws may also be used.
3 Adjustable connecting rods
3.1 Nominal size
The nominal size is specified in terms of the nominal outer diameter of the connecting rod. The following nominal sizes are used:
8, 10, 12, 16, 20, 25, 28, 36 and 48 mm. 3.2 Interchangeability
Locking screw
M8×8
M10×10
GB3668.10—63
The connecting rod shall be suitable for the spindle end manufactured in accordance with the provisions of Chapter 2. 3.3 Type and size
Should comply with the provisions of Figure 2 and Table 2, Figure 3 and Table 3. 3.4 Thread
The outer diameter tolerance of the connecting rod is specified as h6, and the thread pitch of the 8mm connecting rod is specified as 1mm. 3.5 Taper of hole
The Morse taper of the hole shall comply with the provisions of GB1443-78 "Dimensions and tolerances of Morse tool cones". 3.6 Wedge slot
The wedge slot shall be arranged at 90° to the semicircular key. 3.7 Locking screw (for nominal diameter 16~48mm) For safety reasons, the tightened locking screw should not exceed the knurled outer diameter of the nut. Therefore, if necessary, the length of the locking screw should be shortened so that it does not protrude.
3.8 Guide in the spindle end hole
To facilitate insertion into the spindle end hole, the ends of type A and type B extension rods should have appropriate types of guides. 8.9 Marking
The extension rod is marked with its type, nominal size and taper number of the hole. The marking of type B extension rods should also include the extension length! 59 For example: A10/Metric No. 6
B20/1/50
Key
Short connecting rod
2 clamping screws (d = 10-12)
1 locking nut (d = -
Figure 2 Adjustable connecting rodbzxZ.net
One long connecting rod
For other sizes, see Type A
12Tr12×1.5
JTr20×2
25Tr25×2
Tr28×2
Tr36×2
Tr48× 2
Benchmark true diameter:
Metric No. 6
Metric No. 6
0 or No. 1
1 or No. 2
1 or No. 2
2 or No. 3
3 or No. 4
Note: In the table, the outer diameter tolerance is h.
GB3668.1083
Table 2 Dimensions of adjustable connecting rod
185100
195100
Round key
10×32
t = A 12
d=16-96
Tr ×1
Tr10×1.5
Tr12× 1.5
Tr20×2
Tr28×2
Tr36×2
semicircular
degrees|reference diameter
metric No. 6
Mohs No. 0
Mohs No. 0
Mohs No. 2
Mohs No. 2
Mohs No. 3
Mohs No. 3
Mohs No. 4
GB3668.10—83
2 1 clamping nut
1 clamping nut
Extra long connecting rod
Extra long adjustable connecting rod
Extra long adjustable connecting rod size
Pg/holmax
Tolerance
264118
Half sword key
3×13
Thank you for the whole picture
5×1628
5×1928
6×2230
4 clamping nut
GBa668.10-83
The type and size shall conform to the provisions of Figure 4 and Table 4.oa
Each dimension is defined as follows~[2
Nominal size
Figure 4 Clamping nut
Table 4 Clamping nut size
Tr 10 ×1.5
Tr12×1.5
Tr20×2
Tr25×2
Tr28 ×2
Tr36×2
Tr48 ×2
Nominal size 16－48
Typical plastic tightening method
GB 3668.10-83
Appendix A
Related standards
(Supplement)
A,1 Metric taper JB/GQ0101-80 "Dimensions and tolerances of metric tool cones". A? The tooth profile and tolerances of trapezoidal threads shall comply with ISO 2901-1977 "ISO metric trapezoidal threads - basic tooth profile and maximum material tooth profile" and ISO2903-1977 "ISO metric trapezoidal threads - tolerances". 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 is Pu Weiqian.
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