Spiral grinding and polishing disc

Abstract

The invention relates to a spiral grinding and polishing disc which is applicable to the grinding and polishing machining of the surfaces of workpieces, such as optical elements and amorphous film substrates. The spiral grinding and polishing disc comprises a grinding and polishing disc, a rotary shaft, a workpiece mounting head, a sliding block, a linear guide rod, a connecting rod and a moving block, wherein the grinding and polishing disc is driven by a motor; a disc body of the grinding and polishing disc is of a three-dimensional spiral shape, a U-shaped groove is formed in the surface of the disc body, the bottom face of the U-shaped groove serves as a machining face of the grinding and polishing disc, and the grinding granularity of the bottom face of the U-shaped groove decreases progressively from top to bottom; a workpiece is mounted on the workpiece mounting head and moves along the U-shaped groove from bottom to top. The spiral grinding and polishing disc is simple and compact in structure, lower in cost and high in degree of automation, and the workpiece can be subjected to machining of different degrees of accuracy through controlling the grinding granularity of different parts of the spiral grinding and polishing disc; the workpiece can move in an autorotation manner along with the rotation of the spiral grinding and polishing disc, and the disordering of machined texture of a surface to be machined can be realized under the coaction of the workpiece and the spiral grinding and polishing disc, so that the machining efficiency is increased, and the machining quality is improved.

Description

technical field [0001] The invention relates to the field of a grinding or polishing device, which is suitable for grinding and polishing the surfaces of workpieces such as optical elements and amorphous film substrates. Background technique [0002] Grinding is the use of abrasive particles coated or pressed on the grinding tool to finish the processing surface (such as cutting) through the relative movement of the grinding tool and the workpiece under a certain pressure. Grinding can be used to process various metal and non-metal materials. The processed surface shapes include plane, inner and outer cylindrical and conical surfaces, convex and concave spherical surfaces, threads, tooth surfaces and other profiles. The processing accuracy can reach IT5~01, and the surface roughness can reach Ra0.63~0.01 microns. [0003] Polishing refers to the use of mechanical, chemical or electrochemical action to reduce the surface roughness of the workpiece to obtain a bright and smoo...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of low processing efficiency, low degree of automation, and separation of polishing and grinding processing in the prior art, the present invention provides a spiral grinding and polishing process that can simultaneously perform the process from rough grinding to fine polishing. CD

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