Grinding and polishing machining method capable of achieving infinitely variable speeds

Abstract

A grinding and polishing machining method capable of achieving infinitely variable speeds includes the following steps that firstly, a rectangular thin sheet sample after linear cutting adheres to thelower surface of a workpiece disk in the circumferential direction; secondly, an upper grinding device is fixed to the table face of a lower grinding device; thirdly, the workpiece disk is made to reach an assigned position in the Y direction, and achieves the fixed eccentric distance with a grinding disk, a grinding disk driving motor is started, and the grinding disk is made to work; and fourthly, when machining starts, grinding liquid is added to the surface of the grinding disk provided with a groove, a driving motor of the workpiece disk is started, the workpiece disk is made to rotate,driving of the workpiece disk is achieved by the workpiece disk driving motor through a stepless variable speed mechanism, the workpiece disk driving motor is connected with the large end shaft diameter of a conical rolling wheel of the stepless variable speed mechanism through a coupler belt, and the conical rolling wheel is driven to rotate; and the grinding liquid is added into the surface of the grinding disk regularly in the grinding process. The grinding and polishing machining method capable of achieving the infinitely variable speeds achieves the function requirement that speed is anyand adjustable in a certain range, and the speed requirement in actual is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of ultra-precision grinding and polishing, and relates to a grinding and polishing method capable of realizing stepless speed change. Background technique [0002] The current ultra-precision machining technology, based on the premise of not changing the physical properties of the workpiece material, aims to obtain the ultimate shape accuracy, dimensional accuracy, surface roughness, and surface integrity. It is used in electronics, communications, computers, lasers, aerospace and other fields. There are a wide range of applications. Among them, ultra-smooth polishing technology is an important ultra-precision processing technology, and it is one of the important means to obtain high-precision surfaces such as optical components, sapphire substrates, and single-crystal silicon substrates. Plane grinding is the pre-process of ultra-smooth polishing processing technology, and its processing accuracy has a cru...

AI Technical Summary

Problems solved by technology

Traditional plane grinding and polishing machines can only achieve simple speed ratio changes by adjusting the motor speed. For some special speed ratios, such as irrational numbers, it is difficult to achieve, and using rational number speed ratios for grinding and polishing processing, there is a grinding track on the surface of the processed workpiece Repeating the problem will easily lead to the decrease of the roughness of the workpiece surface, the formation of ripples on the polished surface, and defects such as orange peel

Images