液压加载真空热压成型机PID控制设计及应用研究  

PID control design and application research of hydraulically loaded vacuum hot pressing machine

作　　者：唐春龙 曾志文 TANG Chunlong;ZENG Zhiwen(Department of Mechanical and Electrical Engineering,Huizhou Engineering Vocational College,Huizhou 516023,Guangdong China)

机构地区：[1]惠州工程职业学院机电工程系,广东惠州516023

出　　处：《锻压装备与制造技术》2024年第5期51-53,130,共4页China Metalforming Equipment & Manufacturing Technology

摘　　要：为提高液压加载真空热压成型机的稳压控制效果,设计了一种PID控制系统。通过算法优化控制来达到对真空热压装置加压有效调控的功能,有效地完成系统速度与压力的共同控制。实验测试结果表明:当位置与压力误差都在0.1%以内时,可以达到99%的压力控制精度,获得99.3%的位置精度。预压位置经过20s可以达到设定目标,并保持稳定的施加载荷的规律。目标压力经过12s可以达到设定目标,超调量在可控范围。该研究有助于提高热压成型机控制效率,为后续加载工艺优化奠定一定的理论基础。A PID control system was designed in order to improve the control effect of pressure stabilized vacuum hot pressing machine.Through algorithm optimization control,the function of effective pressure control of vacuum hot pressing device is achieved,and the joint control of system speed and pressure is effectively achieved.The experimental results show that when the errors of position and pressure are both within 0.1%,the pressure control accuracy of 99%can be achieved,and the position accuracy of 99.3%can be obtained.The pre-loading position can reach the set target after 20 seconds,and maintain a stable law of applying load.The target pressure can reach the set target after 12s,and the overshoot is in a controllable range.The research is helpful to improve the control efficiency of hot pressing machine and lay a theoretical foundation for the optimization of loading process.

关 键 词：液压加载 真空热压成型机 压力控制 PID控制 实验 

分 类 号：TG315.4[金属学及工艺—金属压力加工]