Control method of servo press

Abstract

The invention relates to a control method of a servo press, and in particular to a bottom dead centre control method of the servo machine. The control method comprises a bottom dead centre reading and identification module, a comparison module and a threshold value module, wherein the bottom dead centre reading and identification module is used for identifying continuous signals in each work cycle period which are detected by a sliding block displacement sensor, and reading a bottom dead centre position value in the current cycle period; the comparison module is used for comparing a current bottom dead centre position value with a system setting value, and calculating an offset of the bottom dead centre; the threshold value module is used for comparing the current bottom dead centre offset of a sliding block with a given threshold value, if the bottom dead centre offset is greater than the given threshold value, the system starts a mould adjusting system to adjust the sliding block to a commanded bottom dead centre. The invention provides the control method of the servo press which can automatically adjust the bottom dead centre of the sliding block, and can satisfy work requirements for precision punching of the press.

Description

technical field [0001] The invention relates to a control method of a servo press, in particular to a method for controlling the servo press, which can automatically adjust the bottom dead point of the slider of the servo press and meet the working requirements of precision punching of the press. Background technique [0002] In the stamping process of sheet metal, the precision of the workpiece is not only affected by the stamping process and stamping die, but also affected by factors such as the mechanical structure of the press, material properties, slider guidance, cooling and lubrication, and control methods such as rigidity and heat. The influence of stability and other comprehensive performance of the press. The accuracy of the bottom dead center of the slider of the press is a direct reflection of the comprehensive performance of the press. [0003] In the stamping process, it is often affected by the stamping speed and working temperature, which causes a large drif...

AI Technical Summary

Problems solved by technology

[0010] In these existing technologies, there is no control technology that adopts the control method to automatically adjust the bottom dead center of the slider.

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