Four-claw automatic centering chuck and machine tool

An automatic, mid-chuck technology, applied to chucks, laser welding equipment, manufacturing tools, etc., can solve the problems of small clamping range of four-jaw chucks, no clamping force compensation function, insufficient clamping accuracy, etc., to achieve clamping The effect of constant tightening force, large clamping range and high positioning accuracy

Pending Publication Date: 2018-09-14
WUHAN GUANYOU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a four-jaw automatic centering chuck, which aims to solve the problems of the existin

Method used

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  • Four-claw automatic centering chuck and machine tool
  • Four-claw automatic centering chuck and machine tool

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[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] See figure 1 as well as figure 2 , The embodiment of the present invention provides a four-jaw automatic centering chuck, which includes a rotary base 1. The rotary base 1 has a ring structure and can rotate around its own axis under the action of external force. The rotary base 1 is provided with a mounting hole 11 The mounting hole 11 is located on the axis of the rotary base 1, and the workpiece can pass through the rotary bas...

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Abstract

The invention relates to machine tool clamping, and provides a four-claw automatic centering chuck. The four-claw automatic centering chuck comprises a rotary base. The rotary base is provided with amounting hole. The four-claw automatic centering chuck further comprises two sets of two-claw clamping mechanisms. Each two-claw clamping mechanism comprises two sets of clamp claw assemblies and a screw. The screws of the two sets of two-claw clamping mechanisms cross with each other. Each clamp claw assembly comprises a rotary clamping claw and a drive part, and the rotary clamping claws are distributed on the mounting hole. The two rotary clamping claws of each two-claw clamping mechanism are arranged oppositely, and the moving paths of the two rotary clamping claws of each two-claw clamping mechanism are located on the same straight line. In each two-claw clamping mechanism, one rotary clamping claw is in right-hand thread connection with the screw, and the other rotary clamping claw is in left-hand thread connection with the screw. The invention further provides a machine tool which comprises the above chuck. The rotary clamping claws of the chuck are synchronously closed or opened under the action of the drive parts, clamping force is constant and can be adjusted according to the actual condition, and when clamped, a workpiece can move and penetrate from the middle of the rotary base; and the clamping range is wide, the speed is high, and the locating precision is high.

Description

technical field [0001] The invention relates to machine tool clamping, in particular to a four-jaw automatic centering chuck and a machine tool. Background technique [0002] The Zhongtong four-jaw automatic centering pneumatic chuck is the main component of the tube laser cutting machine tool. One end of the workpiece is clamped by the rear clamp on the main shaft of the machine tool, and the other end is clamped and positioned by the pneumatic chuck installed at the end of the machine tool. The workpiece rotates and moves in the pneumatic chuck as required, and then the laser is focused on the cutting head to cut the workpiece cutting. [0003] Current status: [0004] 1) The structure of the current Zhongtong pneumatic four-jaw chuck is too complicated, and it is easy to get stuck; the clamping range is small; the clamping force within the clamping range is inconsistent and easy to loosen; it cannot directly clamp a rectangular workpiece with a large ratio of rectangles...

Claims

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Application Information

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IPC IPC(8): B23B31/02B23B31/103B23K26/70
CPCB23B31/02B23B31/103B23K26/702
Inventor 张向明
Owner WUHAN GUANYOU TECH CO LTD
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