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Quick clamping drill chuck

A drill chuck, fast technology, applied in the direction of the chuck, etc., can solve the problems of low work efficiency and low work efficiency of the drill chuck, and achieve the effect of simple structure, reliable clamping state, and reduced friction

Pending Publication Date: 2019-07-23
ROEHM WEIDA MACHINERY (SHANDONG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the technical problem of low working efficiency of existing drill chucks, and provides a quick clamping drill chuck with low working efficiency

Method used

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Embodiment Construction

[0028] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Such as figure 1 and figure 2 Shown, the present invention comprises drill body 1, jaw 2, overcoat 8, steel ball 3, jump ring 7 and back cover 6, and the number of jaw 2 is 3, as image 3 and Figure 4 As shown, the jaws 2 are respectively arranged in the three drill body grooves 1-1 evenly distributed along the circumferential direction on the drill body 1, and the rear end of the drill body 1 is fixed with the rear cover 6 through the circlip 7 to realize the drill body 1 axis. Direction fixed.

[0030] The outer circle of the front end of the drill body 1 is provided with a drill body thread 1-2, and the inside of the jacket 8 has a thread 8-3 that matches the drill body thread 1-2, and the jacket 8 is threaded with the drill body thread 1-2 through the thread 8-3 Connection, the outer sleeve 8 can rotate and drive the jaws 2 thro...

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Abstract

The invention provides a quick clamping drill chuck. The quick clamping drill chuck solves the technical problem that an existing drill chuck is low in working efficiency. The quick clamping drill chuck comprises a drill body, clamp jaws, an outer sleeve, a steel ball, a clamp spring and a rear cover; the clamp jaws are arranged in drill body grooves which are uniformly distributed in the circumferential direction on the drill body respectively; the rear end of the drill body is fixed to the rear cover through the clamp spring, a drill body thread is arranged on the outer circle of the front end of the drill body, the outer sleeve is in threaded connection with the drill body through the drill body thread, an outer sleeve inclined surface is arranged on the inner wall of the outer sleeve,a plurality of inclined surface grooves are uniformly formed in the outer sleeve inclined surface, the inclined surface grooves is matched with the steel ball, and the other surface of the steel ballis matched with the clamp jaws. The quick clamping drill chuck can be widely applied to the technical field of drilling tools.

Description

technical field [0001] The invention relates to the technical field of drilling tools, in particular to a quick clamping drill chuck. Background technique [0002] The drill chuck is one of the important accessories in the electric tool industry and the machine tool industry. It is widely used in electric hand drills, drilling machines, etc., and is matched with electric drills. The head is generally composed of a drill body, jaws, a jacket, and a jacket. The claws are installed in three equally divided oblique holes of the main body, and the jacket is installed in the jacket groove of the main body. The threads of the jacket and the claws form a thread transmission, which can be used Helical movement, so as to realize the working state of clamping and loosening; however, when the drill chuck is working, in order to ensure the clamping performance, the pitch of the jaws and the outer sleeve is relatively small, resulting in the operation from the maximum clamping range to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/163
CPCB23B31/16004
Inventor 于成银魏宁波
Owner ROEHM WEIDA MACHINERY (SHANDONG) CO LTD
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