Trimming device for polishing cushion

Abstract

A polishing pad dressing device, comprising a support plate, a dressing ring, a linear guide rail, a reciprocating drive mechanism, a radial movement drive motor and a rotary drive motor, the two linear guide rails are horizontally installed under the support plate, and the The radial movement drive motor is fixed above the support plate, the radial movement drive motor is mounted on the support plate, the radial movement drive motor is connected with the reciprocating drive mechanism, and the reciprocating drive mechanism can be horizontally Slidingly set on the linear guide rail, the trimming ring is installed under the reciprocating drive mechanism, the rotary drive motor is fixedly connected with the reciprocating drive mechanism, and the output shaft of the rotary motor is driven by the pull rod on the transmission mechanism Coupling trim ring. The invention realizes on-line trimming of the plane precision of the polishing pad, shortens the processing cycle, and has good uniformity on the surface of the processed workpiece.

Description

technical field [0001] The invention relates to the field of polishing machines, in particular to a polishing pad dressing device (or called a grinding disc dressing device). Background technique [0002] Traditional grinding and polishing machines cannot trim the plane accuracy of the polishing disc (grinding disc) online during the processing of workpieces. As the processing continues, the plane accuracy of the polishing disc will become worse and worse. Off-line trimming plane precision. Therefore, it is difficult to ensure that the workpiece obtains extremely high plane precision during processing, and it is also difficult to obtain high surface quality in a short period of time. Disadvantages: 1. It is impossible to realize the plane accuracy of online dressing of the polishing disc; 2. The processing cycle is prolonged; 3. The flatness of the polishing disc cannot be fully guaranteed. [0003] According to the experimental results, it is found that improper surface d...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings that the existing polishing machine cannot realize the plane precision of the online trimming polishing pad, the processing cycle is long, and the workpiece surface after processing has great non-uniformity, the present invention provides a method for realizing the plane precision of the online trimming polishing pad, Polishing pad dressing device with shortened processing cycle and good uniformity of workpiece surface after processing

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