Three-stage pressure control method for plane grinding machine

Abstract

The invention discloses a three-stage pressure control method for a plane grinding machine. The three-stage pressure control method includes the pressurization process and the depressurization process. A target pressure value, a pressure upper limit value, a pressure lower limit value, a first stepping pressure value, a second stepping pressure value and a third stepping pressure value are preset, the three-stage pressurization and depressurization mode is adopted, and pressurization is conducted through large stepping pressure at the beginning so that the pressure can rapidly reach the pressure upper limit value; pressurization is then conducted through the slightly smaller stepping pressure, the speed is decreased, and the pressure reaches the pressure lower limit value; and finally, pressurization is conducted through the smallest stepping pressure, and the pressure slowly reaches the set value of the pressure at a constant speed. The depressurization process is the inverse process of the pressurization process. By means of the pressurization and depressurization mode, the pressurization speed can be high; meanwhile, the pressurization accuracy is high, uniformity is high, the unbalanced pressure on workpieces is reduced, and the yield is increased; and the three-stage pressurization process is further divided into the pressurization achieved through the small stepping pressure and the slow pressurization, and therefore the excessively-large pressure and low accuracy are avoided.

Description

Technical field [0001] The invention belongs to the application field of electronic equipment, and specifically relates to a three-stage pressure control method for a plane grinder. Background technique [0002] The surface grinder is a precision grinding and polishing equipment. The material to be ground and polished is placed on the grinding disc. The grinding disc rotates counterclockwise. The correction wheel drives the workpiece to rotate. The pressurized cylinder presses the workpiece. The workpiece and the grinding disc perform relative friction. To achieve the purpose of grinding and polishing. [0003] The grinding disc dressing mechanism adopts hydraulic suspension rail to reciprocate back and forth, and the diamond dressing knife precisely dresses the grinding surface of the grinding disc to obtain an ideal plane effect. [0004] The pressure of the workpiece of the series grinding machine adopts the method of cylinder pressure, and the pressure is adjustable; [0005] The...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a three-stage pressure control method for a surface grinder, which solves the problems of high workpiece damage rate and low yield rate caused by insufficient pressure control accuracy of the upper plate in the prior art