JB/T 4366.1-1999 JB/T 4366.1-1999 Floor-standing milling and boring machine spindle end boring shaft end dimensions JB/T4366.1-1999 Standard download and decompression password: www.bzxz.net

ICS25.080.20
J54
JB
Machinery Industry Standard of the People's Republic of China
JB/T4366.1~4366.3-1999
Floor-standing milling and boring machine|| tt||Released on 1999-05-20
Spindle end
Implemented on 2000-01-01
National Machinery Industry Bureau
Released
Scope| |tt||Machinery Industry Standard of the People's Republic of China
Floor-type milling and boring machines
Spindle end
Boring shaft end dimensions
This standard specifies the boring shaft of floor-type milling and boring machines Type and size of ends. This standard is applicable to boring spindles of floor-standing milling and boring machines with a boring spindle diameter of 130~260mm. Reference standards
2
JB/T4366.1-1999
replaces JB4366.1-86
The provisions contained in the following standards are quoted in this standard constitute the provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB/T70 — 1985 | | tt | Type and size 3
The type and size of the end of the boring shaft of the floor-standing milling and boring machine should comply with the requirements in Figure 1 and Table 1. The National Machinery Industry Bureau approved the implementation on 2000-01-01 on 1999-05-20
Measurement Plane
30*
N
2
ZA|| tt||At the shaft end
0.015]A
High shaft end 300
.08
Ro.5
Figure 1 Boring shaft end Part type
Marking example: Boring spindle diameter is 130mm
Marking: 130JB/T4366.1-1999
PP
C0.3
JB /T4366.1-1999
Spindle diameter
Bore spindle
D
130
160
200
260
Milling spindle
200
260
320
400
Spindle diameter
Boring spindle
D
130
160
200
260
Note
Milling axis
200
260
320
400
D
69.85
69.85
69.85
107.95
107.95|| tt||m
minimum
19
19
19
38
38
0.4||tt| |0.4
0.4
0.4
0.4
101.6
101.6
101.6
160
177.8
d
39.6
39.6
39.6
60.2
60.2
g
M16|| tt||M16
M16
M20
M20
JB/T4366.1--1999
Table 1
L|| tt||minimum
140
140
140
220
220
L,
minimum||tt ||25
25
25
30
30
d
minimum
27
27
27
35
35
82
M12
M12
M12
M12| |tt||M12
b,
25.4
25.4
25.4
25.4
25.4
L|| tt||18
18
18
18
18
should be within the Z value range on both sides of the measurement plane. D, is the basic size,
d, is the hole diameter of the tie rod. The tolerance zone is H12. 2
keyway 6, and the match with the end face key is M6/h5. 4g1, and the screw hole tolerance zone is 6H.
m is the distance from the end face of the milling axis when the clock axis is shortened. 5
According to needs, the geometric tolerance value and surface roughness can be higher than those specified in the figure. 6
7A, size deviation is ±0.2.
c
minimum
12.5
12.5
12.5
12.5
12.5
n,| |tt||Maximum
12.5
12.5
12.5
12.5
12.5
Taper number
E,| |tt||Minimum
36
36
36
61
61
GB/T 3837.I—1983|| tt||50
50
50
60
60
KwwW.bzxz.Net
Max
26.5||tt| |26.5
26.5
35
45.5
mm
49.5
49.5
49.5
84
84
Screws for end face keys
GB/T70—1985
M12×25
M12×25
M12×25| |tt||M12×25
M12×25
3
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