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Three-jaw chuck with wedge blocks

A three-jaw chuck and wedge block technology, applied in the direction of the chuck, etc., can solve the problems of the workpiece position change and the short holding part, and achieve the effect of stably clamping the workpiece and lengthening the clamping depth.

Inactive Publication Date: 2017-05-31
CHONGQING YOUBO MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This patent provides a three-jaw chuck with wedge blocks to solve the problem that the position of the workpiece may change due to the short holding part in the prior art

Method used

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Embodiment 1

[0017] Embodiment 1: basically as attached figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 Shown:

[0018] The present invention includes a chuck body 1 and three jaws of the same structure, and the chuck body 1 is provided with a workpiece pressing mechanism 5, which includes a frame-shaped sliding seat, a small shaft 10 and a The eccentric hand wheel 11 that the small shaft 10 rotates, the frame-shaped sliding seat has an upper opening plate 9 and a lower sliding bar 7 connected in parallel with the upper opening plate 9, and the lower sliding bar 7 of the frame-shaped sliding seat The outside is provided with a longitudinal rectangular hole, and the upper opening plate 9 of the frame-shaped sliding seat has a supporting bar extending downwards and stretching into the longitudinal rectangular hole of the lower sliding bar 7, and the supporting bar of the upper opening plate 9 has a plurality of intervals. Horizontal through hole, there is a pin shaft 8 connected...

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Abstract

The invention discloses a three-jaw chuck with wedge blocks and belongs to the field of lathe fixtures. The three-jaw chuck comprises a chuck body and three clamping jaws with the same structures. A workpiece compressing mechanism is arranged on the chuck body and 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 parallel to and connected with the upper opening plate to be a whole. The small shaft is fixed to the upper opening plate of the frame-shaped sliding seat. Each clamping jaw is constituted of a clamping jaw connecting part, a clamping jaw adjusting seat and the wedge block. An adjusting hole is formed in each clamping jaw connecting part. The inner wall of one side of each adjusting hole is in a toothed shape. An adjusting block is arranged on each clamping jaw adjusting seat and in a wedge shape. One side of each adjusting block is in a toothed shape matched with the corresponding adjusting hole. According to the three-jaw chuck of the structure, using is convenient, the loose and sliding phenomena of workpiece clamping are avoided, the machining precision of a workpiece is guaranteed, the qualification rate of lathe machining is increased, and the lathe machining range is increased.

Description

technical field [0001] The invention belongs to the field of lathe clamps. Background technique [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. [0003] The invention patent document with the authorized announcement number CN101758257B discloses a three-jaw chuck with wedge-shaped blocks. The chuck includes a chuck body and three jaws of the same structure. The chuck body is provided with a mechanism for pressing the workpiece. The workpiece pressing mechanism includes a frame-shaped sliding seat, a small shaft and an eccentric handwheel rotating around the small shaft. Move the bar, the small shaft is fixed on the upper opening plate of the frame-shaped sliding seat, the lower sliding bar moves back and forth along the track gro...

Claims

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Application Information

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IPC IPC(8): B23B31/177
CPCB23B31/16233
Inventor 陈明友
Owner CHONGQING YOUBO MACHINERY MFG
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