JB/T 4371.1-1999 Self-tightening drill chuck parameters

JB/T 4371.1-1999 Self-tightening drill chuck parameters JB/T4371.1-1999 standard download and decompression password: www.bzxz.net

ICS 25.060.20bzxz.net
Machinery Industry Standard of the People's Republic of China
JB/T4371.1~4371.3-1999
Self-tightening drill clamp Head
Released on 1999-05-20
National Machinery Industry Bureau
Released
Implemented on 2000-01-01
JB/T4371.1-1999
Foreword
This standard is a revision of JB4371.1-86 "Self-tightening drill chuck parameters and dimensions". This standard is consistent with the technical content of JB4371.1-86, and has only been re-edited in accordance with relevant regulations. This standard is part of a series of standards for self-tightening drill chucks. JB/T4371 is under the general title of "Self-Tightening Drill Chucks" and includes the following parts:
Part 1 (i.e. JB/T4371.1): Parameters : Part II (JB/T4371.2): Accuracy inspection; Part III (JB/4371.3): Technical conditions. This standard will replace JB4371.1-86 from the date of implementation. This standard was proposed by the National Jinzhan Cutting Machine Tool Standardization Technical Committee. This standard is under the jurisdiction of the Machine Tool Accessories Branch of the National Metal Cutting Machine Tool Standardization Technical Committee. The unit responsible for drafting this standard: Yantai Machine Tool Accessories Research Institute. The main drafters of this standard: Cui Meitan, Liu Xia. This standard was first published in 1986.
Machinery Industry Standard of the People's Republic of China
Self-tightening drill chuck
Parameters
This standard specifies the connection type of self-tightening drill chuck and parameters. This standard applies to self-tightening drill chucks with tapered holes and threaded holes. 2 Quoted standards
JB/T4371.1-1999
replaces JB/T4371.1-86
The provisions contained in the following standards are constituted by the reference in this standard. Standard provisions. 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/T60901993 drill chuck conical
3 connection type
type is a tapered hole connection type, see Figure 1. Type II is a hole connection type, see Figure 2. D
Push hole D
GB/T 60901993
Figure 1
National Machinery Industry Bureau approved Figure 2 on 1999-05-20
-01Implementation
Parameters
The parameters of the self-tightening drill chuck are shown in Table 1.
Maximum
To hold the full diameter
Type 1
Dimension D,
Morse short cone
B12| |tt||B16
Feige Short Cone
JB /T 4371.11999
Table 1
Type Ⅱ
Connecting thread d
M10×1
M12x1.25||tt ||M10x1
M12×1.25
Thread depth
14|| tt||14
D||tt| |max
Clamping range
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