JB/T 3411.93-1999 This standard is a revision of JB 3504-83 "Dimensions of Interchangeable Taper Shank or Adjustable Boring Tool Holders". Only the following points were modified during the revision, and the main technical content remained unchanged: - Writing format; - Standard name plus English; - Relevant referenced standards and related content; - Thread drawing method. This standard specifies the type and size of interchangeable taper shank or adjustable boring tool holders. This standard is applicable to adjustable boring tool holders used on ordinary boring machines with spindle taper shank holes of 7:24 taper 40, 45, 50. JB/T 3411.93-1999 Dimensions of Interchangeable Taper Shank Adjustable Boring Tool Holders JB/T3411.93-1999 Standard download decompression password: www.bzxz.net

ICS25.080.01
Machinery Industry Standard of the People's Republic of China
JB/T3411.93-1999
Changeable taper shank type adjustable boring tool holder
Changeable taper shank type adjustabe boring tool holder Dimensions
Published on 1999-05-20Www.bzxZ.net
State Bureau of Machinery Industry
Implementation on 2000-01-01
Machinery Industry Standard of the People's Republic of China
Changeable taper shank type adjustable boring tool holder Dimensions
This standard specifies the types and dimensions of replaceable taper shank adjustable boring tool holders. JB/T3411.93—1999
Replaces JB350483
This standard applies to the adjustable boring tool holder used on ordinary boring machines with a spindle taper hole of 7:24 and a taper of 40, 45, and 50. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T1443—1996
GB/T3837.31983
JB/T3411.83-—1999
Types and dimensions
Self-clamping tapers for machine tools and tool shanks
7:24 Taper-connected tool taper shanks
Dimensions of 90° boring bars with taper shanks
Types and dimensions shall be as specified in Figure 1, Table 1 and Figure 2, Table 27 - 24 Drawing inspection
Figure 1A type
Approved by the State Bureau of Machinery Industry on May 20, 1999, implemented on January 1, 2000
Cone number
JB/T3411.93—1999
Boring range
17:24 The dimensions and deviations of the cone shall comply with the provisions of GB/T3837.3. 2 For the scale value of the adjusting screw rod, the adjustment amount per grid shall not exceed 0.02mm. Male
Figure 2B type
JB/T3411.93-1999
Boring range
The dimensions and deviations of the Morse cone and the metric cone shall comply with the provisions of GB/T1443. 2 The size of the locking groove and the matching locking die shall comply with the provisions of Appendix A and Appendix B of JB/T3411.83-1999. 3 The scale value of the screw rod shall be adjusted, and the adjustment amount per grid shall not exceed 0.02mm4 Marking
Marking example:
7:24 taper 50, L-276mm A-type 7:24 taper shank adjustable boring tool holder: 50-A276JB/T3411.93-1999
Boring tool holder
Morse taper 5, L=300mm B-type adjustable boring tool holder 5-B300JB/T3411.93-1999
Boring tool holder
Mechanical industry standard
Interchangeable taper shank adjustable boring tool holder| |tt||JB/T3411.93-1999
Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
Format 880×1230
X number of characters xXX,XXX
Print Sheet X/X
Xth printing in XX month, 19XX
Xth edition in XX month, 19XX
Number of prints 1-XXX
Price XXXXX Yuan
XX-XXX
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