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Three-point self-centering device

A self-centering and fixed disk technology, applied in the field of mechanical parts processing, can solve the problems of high synchronization and high concentricity, and can not fully guarantee the complete synchronization of the three-jaw clamping progress, and achieve the effect of good concentricity.

Pending Publication Date: 2017-11-24
一工机器人银川有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the ordinary three-jaw clamping workpiece is used for clamping, even if the three jaws are driven by a synchronous cylinder, it cannot fully guarantee that the progress of the three-jaw clamping is completely synchronized
Ordinary three-jaw clamping device cannot meet the clamping requirements of high synchronization and high concentricity

Method used

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Embodiment Construction

[0016] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0017] Such as Figure 1 to Figure 4 A three-finger self-centering device shown is the most preferred embodiment of the present invention, including an annular fixed disk 1. The upper surface of the fixed disk 1 is evenly spaced with three draw-in grooves 2, and the adjustment blocks 3 are clamped in the draw-in grooves 2 respectively. Adjusting block 3 ends are fixed with support block 13, and the inner surface of described support block 13 is arc surface, can adapt to workpiece surface radian conveniently.

[0018] In order to facilitate support, three uniform support columns 14 are screw-fastened under the fixed plate 1 . The position of support column 14 ...

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Abstract

The invention provides a tree-point self-centering device. The device comprises an annular fixed disc, three clamping grooves are uniformly distributed at the upper surface of the fixed disc at intervals, the clamping grooves are internally provided with adjusting blocks respectively, the fixed disc is provided with an annular turbine chuck, the radial length of the adjusting blocks in the fixed disc is larger than the difference between the outer diameter and the inner diameter of the turbine chuck, vortex gears protrude out of the surface of the turbine chuck, and adjusting gears which are meshed with the vortex gears of the turbine chuck are arranged at the upper surfaces of the adjusting blocks. According to the tree-point self-centering device, through tooth-form meshing connection of the vortex gears of the turbine chuck and the adjusting blocks, when the turbine chuck is rotated, the adjusting blocks can be synchronously driven to forward or retreat, compared with a three-jaw chuck which is controlled to conduct synchronous movement through electronic equipment, a mechanical structure is adopted to control three adjusting blocks to synchronously feed, the concentricity is good, and it can be guaranteed that a workpiece is located in the rotation center.

Description

technical field [0001] The invention relates to the field of machining of mechanical parts, in particular to a three-finger self-centering device. Background technique [0002] When processing mechanical parts, it is usually necessary to use a clamping device to clamp and fix the workpiece. In order to ensure that the center of the workpiece is on the center of rotation, the three jaws of the chuck need to be jointly fed by pneumatic or other means according to the principle of three-point centering. When the common three-jaw clamping workpiece is used for clamping, even if the three jaws are driven by a synchronous cylinder, it cannot fully guarantee that the progress of the three-jaw clamping is completely synchronized. Ordinary three-jaw clamping devices cannot meet the clamping requirements of high synchronization and high concentricity. Therefore, it is necessary to redesign the existing three-jaw clamping device to meet the synchronization requirement. Contents of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/16
CPCB23B31/16
Inventor 王小龙邹彦荣王新炜周学军
Owner 一工机器人银川有限公司
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