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Drill chuck with positioning device

A technology of positioning device and drill chuck, which is applied in the direction of manufacturing tools, tool holder accessories, chucks, etc., can solve the problems of poor flexibility of drill chuck, easy to reduce precision, low assembly efficiency, etc. Product cost, simple assembly effect

Active Publication Date: 2014-05-14
WEIHAI DAWANG HARDWARE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the technical problems of poor flexibility, low precision and low assembly efficiency of the above-mentioned drill chuck, and provides a drill chuck with a positioning device with high flexibility and high precision

Method used

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  • Drill chuck with positioning device
  • Drill chuck with positioning device
  • Drill chuck with positioning device

Examples

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Effect test

Embodiment Construction

[0017] Such as figure 2 and image 3 As shown, the drill chuck body 11 is obliquely and symmetrically processed with three jaw holes 7 penetrating up and down, and three ball holes 8 are provided at the upper end of the drill chuck body 11 corresponding to the three jaw holes 7, and the lower end Along the central axis of the drill chuck body 11, a tool hole 10 larger than the maximum applicable tool assembly outer diameter is processed, and the upper end of the push screw 1 is processed with a host connection that matches the transmission shaft of the equipment host that assembles the self-tightening drill chuck. Hole 2, the upper end of the drill chuck body 11 is processed with a connecting hole 6 matching the outer diameter of the lower end of the push screw 1 along the central axis, and the lower end of the push screw 1 is movably sleeved in the connecting hole 6, and the connecting hole 6 and the tool hole 10 is provided with a partition 16, so that the two are not conn...

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PUM

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Abstract

The invention relates to a drill chuck with a positioning device. By using the drill chuck, the problems that a clamping jaw of an original drill chuck is bad in flexibility and easy in radial wobble to reduce precision are solved. The drill chuck is provided with a propelling screw rod, a host connecting hole, a propelling nut, a clamping jaw and a drill chuck body; the propelling screw rod is connected with the propelling nut by adopting threads; the propelling nut is connected with the clamping jaw; the drill chuck body is provided with a clamping jaw hole; the clamping jaw is positioned in the clamping jaw hole; the drill chuck body is provided with a ball hole; the clamping jaw is provided with an arc-shaped groove; and positioning balls are arranged in the ball hole and the arc-shaped groove. The drill chuck can be widely used in the machining field.

Description

technical field [0001] The invention relates to a tool holder for mechanical processing, in particular to a drill chuck with a positioning device. Background technique [0002] In production and processing activities, tools such as machine tools and electric drills are often used for drilling, milling and other operations. Although the drill chucks installed on the working axes of these equipment hosts to hold drills, milling cutters and other tools have experienced long-term application and improvement , but there are still many deficiencies. [0003] For example, the patent application whose authorization announcement number is CN201291311Y has announced a kind of self-tightening drill chuck, such as figure 1 As shown, it is provided with a push screw 30 , a push nut 31 , a casing 32 , a drill chuck body 33 , and jaws 34 . Its working principle is: turn the shell 32 by hand, drive the drill chuck body 33 to rotate relative to the push screw 30 connected to the working sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B31/12B23B31/165
Inventor 董斐然柳尧亭徐桂红于庆滋
Owner WEIHAI DAWANG HARDWARE PROD
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