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Centrifugal automatic chuck

An automatic chuck and centrifugal technology, applied in the direction of the chuck, can solve the problems of increasing the locking force of the chuck, high labor intensity, low clamping efficiency, etc., and achieve high centering accuracy, good self-locking performance, The effect of low labor intensity

Active Publication Date: 2018-09-28
GUIYANG ZHIYUAN MACHINERY PROD DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the size of the shaft workpiece is small, the cutting allowance is large, and the cutting speed is high (1500-2500 rpm), the clamping force of the conventional chuck will decrease sharply with the increase of the speed; the workpiece is often loose due to loosening. cause waste
In order to prevent the workpiece from loosening, it is necessary to increase the locking force of the chuck when it is stationary; not only the labor intensity is high, the clamping efficiency is low, but it is also easy to cause damage to the jaws or the Archimedes spiral disc in the chuck

Method used

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  • Centrifugal automatic chuck
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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as Figure 1~5 As shown: the chuck is composed of a convex mounting seat 2, a concave-shaped outer casing 1 located on the mounting seat, a circular cover plate 6 connected to the outer casing by threads, and three pins fixed in the mounting seat 2. The shaft 3 is formed, and the surface of the cover plate 6 has three Archimedes spiral chutes 7 evenly distributed around the axis of the mounting seat 2; the claws 4 are triangular structures, and sliding pins 8 are fixed on them; each claw 4 are respectively hinged with the corresponding pin shaft 3 through the shaft holes 5 thereon, and each slide pin 8 is inserted into the corresponding Archimedes spiral chute 7.

[0015] In order to prevent the cover plate 6 from loosening, there are set screws 11 connected with the outer cover 1 on the cover plate 6 . In order to ensure the safe...

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Abstract

The invention discloses a centrifugal automatic chuck and belongs to fixtures. The invention aims to provide a lathe chuck which has a simple structure, is convenient and swift in loading and unloading workpieces and is reliable in positioning and clamping. The centrifugal automatic chuck comprises a chuck and three jaws, wherein the chuck comprises a sleeve-like installation seat (2), an outer sleeve (1), a cover plate (6) and three hinge pins (3); the outer sleeve (1) is positioned on the installation seat; the cover plate (6) is connected with the outer sleeve; the hinge pins (3) are fixed in the installation seat (2); three uniformly distributed Archimedes spiral chutes (7) are formed in the surface of the cover plate (6); sliding pins (8) are fixedly arranged on the triangular jaws (4); each jaw (4) is hinged with each hinge pin (3) via a pin hole (5) in the jaw; each sliding pin (8) is inserted in the corresponding Archimedes spiral chute (7). The centrifugal automatic chuck has a simple structure, is convenient to operate, has low labor intensity, high efficiency and good self-locking property and is a lathe chuck.

Description

technical field [0001] The invention relates to a chuck, in particular to a centrifugal automatic chuck, belonging to a lathe fixture. Background technique [0002] The three-jaw chuck is a general-purpose fixture; when the cutting speed of the lathe is relatively low, the conventional screw chuck, hydraulic or pneumatic chuck can meet the processing requirements. However, when the size of the shaft workpiece is small, the cutting allowance is large, and the cutting speed is high (1500-2500 rpm), the clamping force of the conventional chuck will decrease sharply with the increase of the speed; the workpiece is often loose due to loosening. cause waste. In order to avoid loosening of the workpiece, it is necessary to increase the locking force of the chuck when it is stationary; not only the labor intensity is high, the clamping efficiency is low, but also the jaws or the Archimedes spiral in the chuck are easily damaged. Contents of the invention [0003] In view of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B31/14
CPCB23B31/14
Inventor 汪成荻汪军
Owner GUIYANG ZHIYUAN MACHINERY PROD DEV CO LTD