JB/T 9940.1-1999 JB/T 9940.1-1999 Tool shank self-locking tapered reducer type and parameters JB/T9940.1-1999 Standard download decompression password: www.bzxz.net

TCS 25.060.20
Mechanical Industry Standard of the People's Republic of China
JB/T9940.1~9940.2—1999
Self-locking tapered reducer for tool handle
1999-05-20 Issued
State Administration of Machinery Industry
2000-01-01 Implementation
JB9940.1-1999
This standard is a revision of 7B152010.189 (Types and prices of taper reducers for tools with self-drawing shanks). The original standard adopts IS0238:1974 "Reducer sleeves and long rods for tools with shank tapers", and according to the needs of my country's market, two specifications "1×0" and "2×1\" are added to type 1, and "metric" specifications are added to type II. Its technical content can still meet the current technological level and meet the needs of production and use. The technical content of this standard is consistent with that of ZB552010.1-89, and it has only been newly edited according to relevant regulations. , non-standard is 1. It is part of the series of standards for self-locking circular chain changers. JB/T9940 is under the general title of "Tool handle self-locking circular chain change inspection set", including the following two parts:
Part 1 [ie JB/9940.1) Parameters
Part 2 (ie JB/9 40.2): Technical conditions. This standard will replace ZBJ52010.1-89 from the month of implementation. This standard is proposed by the National Jinzhan Cutting Machine Tool Standardization Technical Committee. This standard is under the jurisdiction of the National Jinzhan Cutting Machine Tool Standardization Technical Committee and the Machine Tool Accessories Branch. The responsible drafting unit of this standard is: Dalian Machine Tool Accessories Factory. The main initiators of this standard: Zhang Shufen, Yuan Zhuoling, Ma Yungua: This standard was first issued in March 1989
Machinery Industry Standard of the People's Republic of China
Tool handle self-locking tapered reducer
Type and parameters
This standard specifies the type and parameters of tool handle self-locking tapered reducer. This standard is applicable to tool self-locking reducer for machine tools. Cited standards
JB Guangr9940.1—1999
Dai 71515210.189
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is revised, the versions shown are valid. All standards are publicly recognized. Revision, the parties using this standard should explore the possibility of using the latest version of the following standards: GB/T1443-1996 Machine tool and tool handle white clamp 3 types and parameters
3.1 Type I-
Tool chain tree reducer
Tool male reducer The type of the sleeve is shown in Figure 1, and the parameters should comply with the provisions of Table 1. External sales
State Machinery Industry 1999-05-2 Industry Approval Figure 1
Internal bacteria cake
2000-01-01 Real
External limit number
12:(165
Society, the integers in brackets can be as unpretentious as possible. 3.2. Type II
Tool maintenance extended diameter reducer
JB/T 9940.1—1999
T is the type of cone extended diameter reducer as shown in Figure 2. The parameters should conform to the requirements of Table 2. Inner circle cone
Inner square cone number
Outer circle number
Tongue cone
JB/T 9940.1-1999wwW.bzxz.Net
Inner ring
Inner male cone number
Outer western cone number
JE/T9940.1-1999
Table 2 ()
Western drawing cone
1 According to the requirements, it can be increased by 5 or 10. 2 Try not to use the numbers in brackets.
Inner sample bow
3 According to the two required tight precision (inner and outer holes), the properties can be adjusted. 3.3 formula
:-.1. The cone tree guide is such as the long rod reducer number
12 D65
【. The type of the series tree guide extended support reducer sleeve is shown in National 1, and the parameters should conform to the provisions of Table 3. 3G
External dimension number
FB/T9940.1-1999
Internal number
Basic size
Thermal limit deviation
External end number
67 548
JB/T9940.1—1999
Table (complete)
Internal solution
Internal diagram number
! Root needs in the middle (inside and outside staggered length north! Can do, also can not do 2 supply according to the need to mail outside the network, can consider adding new pairs, d
good original people's heart
limit code difference
national chain reducer
3.*Type with -
JB/T9940.1-1999
round dimension variable sleeve type as shown in Figure 4, integer should conform to the provisions of Table 4, inner garden class
outer round beach number
various lifting reducer 1. tool staggered handle part of the relevant dimensions refer to CB jin 144335
inside plaque male number
63_118
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