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Three-jaw chuck

A three-jaw chuck and chuck technology, applied in the direction of the chuck, can solve the problems of loose and slippery blanks, affecting the qualification rate of lathes, etc.

Inactive Publication Date: 2010-06-30
芜湖长胜机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A three-jaw chuck is usually used to process a workpiece on a lathe. The commonly used three-jaw chuck includes a chuck body and three jaws. There will be a phenomenon that the blank is loose and slippery when clamping the workpiece, which will affect the pass rate of lathe processing

Method used

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Embodiment Construction

[0013] like figure 1 , figure 2 As shown, a three-jaw chuck includes a chuck body 1 and three jaws of the same structure. The chuck body 1 is provided with a workpiece pressing mechanism 5, and the workpiece pressing mechanism 5 includes a frame-shaped sliding The seat, the small shaft 10 and the eccentric hand wheel 11 rotating around the small shaft 10, the frame-shaped sliding seat has an upper opening plate 9 and an integrated lower sliding bar 7 parallel to the upper opening plate 9, the frame-shaped sliding seat has The outer side of the lower sliding bar 7 of the seat is provided with a longitudinal rectangular hole, and the upper opening plate 9 of the frame-shaped sliding seat has a downward extending support bar extending into the longitudinal rectangular hole of the lower sliding bar 7, and the support of the upper opening plate 9 The bar is provided with a plurality of spaced horizontal through holes, the lower sliding bar 7 and the supporting bar of the upper op...

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Abstract

The invention discloses a three-jaw chuck, which comprises a chuck body and three jaws with the same structure, wherein the chuck body is provided with a workpiece pressing structure; the workpiece pressing structure comprises a frame-shaped sliding seat, a small shaft and an eccentric hand wheel rotating around the small shaft; the frame-shaped sliding seat is provided with an upper opening plate and a lower sliding strip which is parallel to and connected into a whole with the upper opening plate; the small shaft is fixed on the upper opening plate of the frame-shaped sliding seat; the lower sliding strip makes reciprocating displacement along a track groove arranged on the chuck body; and an extended line of a centre line of the track groove on the chuck body is intersected with a centre line of the chuck body. The three-jaw chuck adopting the structure is convenient to use, can prevent a held workpiece blank from loosening when workpiece blanks are clamped, improves the acceptability of lathe machining and increases the range of the lathe machining.

Description

technical field [0001] The invention relates to a lathe clamp, in particular to a three-jaw chuck. Background technique [0002] Lathes usually use a three-jaw chuck for machining workpieces. The commonly used three-jaw chuck includes a chuck body and three jaws. During use, because the workpiece blank has a special-shaped structure similar to an equilateral triangle, it is processed on a lathe. There will be a phenomenon that the blank is loose and slippery when clamping the workpiece, which affects the pass rate of lathe processing. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a three-jaw chuck, which can avoid the loose phenomenon of clamping workpiece blanks and improve the qualification rate of lathe machining. [0004] To solve the technical problem, the technical solution of the present invention is as follows: a three-jaw chuck, comprising a chuck body and three jaws of the same structure, wherein the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/16
Inventor 余昭华周本峰
Owner 芜湖长胜机械制造有限公司
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