Computer-based high-precision servo pressing method

Abstract

The invention discloses a high-precision servo press fitting method based on a computer, and relates to the field of automation control. The collecting pressure is dynamically compensated according to collected pressure values and a pressure change trend, adaptive control is performed on an elastic workpiece by combining with a displacement sensor and a pressure sensor, therefore, the pressing accuracy and pressure control stability for the elastic workpiece are improved, the phenomenon that elastic workpiece pressing is unqualified due to the fact that in a traditional technology, the pressure is too large or the actual pressing pressure is slightly smaller cannot occur, and the workpiece quality is guaranteed; meanwhile, due to the fact that the influence of interfering data is greatly eliminated, the adaptability of the pressure control method in different processing environments can be guaranteed.

Description

technical field [0001] The invention relates to the field of automatic control, in particular to a computer-based high-precision servo pressing method. Background technique [0002] The servo press is a press that is driven and controlled by a servo motor. The servo motor can control the pressing process of the press quickly and flexibly. The most critical parameters in the pressing process of the press are the pressure and the amount of pressing or the displacement of the indenter. However, the existing servo press performs pressing control according to the collected pressure data, and basically does not process the collected data. There is also a lack of devices or means to monitor the relationship between pressure and displacement during the entire pressing process, resulting in the disadvantages of high delay, slow response, inaccurate pressure acquisition, poor adaptability and low stability in the pressure control of the workpiece. The quantitative monitoring of the o...

AI Technical Summary

Problems solved by technology

The most critical parameters in the pressing process of the press are the pressure and the amount of pressing or the displacement of the indenter. However, the existing servo press performs pressing control according to the collected pressure data, and basically does not process the collected data. There is also a lack of devices or means to monitor the relationship between pressure and displacement during the entire pressing process, resulting in the disadvantages of high delay, slow response, inaccurate pressure acquisition, poor adaptability and low stability in the pressure control of the workpiece. Quantitative monitoring of the overall pressing process, so that it is impossible to judge whether the pressure in the processing process is normal or not, and whether the entire processing process is normal, which weakens the ability of the servo press to control the processing accuracy and quality

[0003] For workpieces that are elastic and deformable, it is very difficult to standardize the pressing of them, because the workpiece itself is elastic, so it is very easy to have problems such as insufficient pressing, which affects the processing accuracy of elastically deformed workpieces

In recent years, although pressure detection has been mature in theory, in actual measurement and control, how to ensure fast and real-time pressure sampling and how to ensure that elastic workpieces are intelligently controlled according to the collected pressure data to obtain ideal products are urgent to be solved question

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