Transactions of Materials and Heat Treatment

Title：Pressure control model for servo electric cylinder based on displacement iteration

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ClassificationCode：TP273

year,vol(issue):pagenumber：2023,48(4):199-203

Abstract：

In order to solve the problem that the control accuracy of traditional servo electric cylinder press in torque mode was affected by system damping and was not suitable for large range pressure control, a set of servo electric cylinder press system was designed and manufactured. Then, the pressure control model based on displacement iteration and the constitutive relationship between the pressure and deformation of the pressed workpiece material, the deformation amount of the pressed workpiece was controlled by adjusting the output displacement of electric cylinder to realize the pressure control based on displacement iteration. Thus, the influence of system damping on the control accuracy was overcome, the pressure control accuracy of the servo electric cylinder was higher than ±0.6%, and the greater the pressure was, the higher the control accuracy was. The research results make that the ordinary electric cylinder can meet the needs of large range and high-precision pressure control and greatly reduce the manufacturing cost of the servo electric cylinder press system.

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作者简介：高琳琪（1982-），男，工学学士，研究员 E-mail：mymiao421@163.com 通信作者：张乔（1995-），男，工学硕士，工程师 E-mail：18428331516@163.com

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