Metal plate polishing device

Abstract

The invention discloses a metal plate polishing device, and relates to the technical field of metal machining machines. The metal plate polishing device comprises a base, wherein a vertical plate is vertically arranged on the base, a motor is fixedly installed on the vertical plate, a polishing disc is fixedly installed on a rotating shaft of the motor, a bracket is arranged on the lower side of the polishing disc, the polishing disc comprises a rotating wheel, first supporting columns and second supporting columns, a through hole is formed in the middle of the rotating wheel, a plurality of cavities are annularly distributed in the rotating wheel, the cavities are located on the outer side of the through hole, and meanwhile the cavities communicate with the through hole through communicating grooves; and a plurality of telescopic first supporting columns are installed on the rotating wheel in a sliding mode, the ends of the first supporting columns extend into the cavities, and meanwhile every two adjacent first supporting columns are connected through the corresponding second supporting column. According to the metal plate polishing device, when the surface of a workpiece and the polishing disc are extruded, the first supporting columns are pushed to contract, installation frames in the contracted first supporting columns push elastic connecting rods to contract, the contracted elastic connecting rods push two pull rods to be gathered together, and therefore the second supporting columns are pushed to extend out, an abrasive belt is tensioned through the extending-out elastic connecting rods, and the problem that the abrasive belt is loosened and falls off in the contracting process is avoided.

Description

technical field [0001] The invention belongs to the technical field of metal processing machinery, in particular to a metal plate grinding device. Background technique [0002] Grinding wheels commonly used in engineering often generate a lot of grinding heat due to friction when grinding or cutting materials, which can easily cause burns and cracks on the surface of the workpiece, seriously affecting the surface processing quality of the workpiece. [0003] In the prior art, most of them adopt the method of increasing the heat dissipation area or changing the configuration of the grinding wheel for heat transfer, and the passive heat dissipation method is used to achieve the purpose of heat dissipation; in addition, the heat attenuation on the surface of the grinding wheel affects the grinding effect. Contents of the invention [0004] The purpose of the present invention is to provide a metal plate grinding device. When the surface of the workpiece is squeezed with the g...

AI Technical Summary

Problems solved by technology

[0002] When the grinding wheel commonly used in engineering is grinding or cutting materials, it often generates a lot of grinding heat due to friction, which easily causes problems such as burns and cracks on the surface of the workpiece. Seriously affect the surface processing quality of the workpiece

[0003]In the prior art, most of them use the method of increasing the heat dissipation area or changing the configuration of the grinding wheel for heat transfer, and the passive heat dissipation method is used to achieve the purpose of heat dissipation; The problem of thermal attenuation affecting the grinding effect

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