变压边力二级调节控制系统  

Two Stages Adjusting Control System of Variable Blank-holder Force

作　　者：欧阳康[1] 陈炜[1] 岳陆游[1] 汤鹏鹏[1] 

机构地区：[1]江苏大学机械工程学院,江苏镇江212013

出　　处：《热加工工艺》2016年第3期110-112,共3页Hot Working Technology

基　　金：国家自然科学基金资助项目(50775102);2012年江苏大学工业中心大学创新实践基金资助项目(50775102)

摘　　要：为了满足压边力随行程和位置同时变化,提出一种液压机压边力二级调节控制系统:基于电液比例技术和PID实现对一级液压垫力的双闭环控制;通过在专用顶出杆上安装力传感器,实现对二级顶出杆力的调节。利用MATLAB/simulink软件的运算和盒形件的拉深实验对系统进行了验证。结果表明,系统的响应速率、控制稳定性和控制精度能符合技术要求。In order to meet the blank holder force （BHF） synchronously changing with stroke and position, a kind of two stages adjusting control system of BHF for the hydraulic press was proposed. The dual-loop control of hydraulic cushion force was realized based on electro-hydraulic proportional technology and PID. Through installing the force sensor on the special ejector rod, the adjustment of two stages ejector rod force was achieved. The system was verified by computing of MATLAB / simulink software and box part drawing experiment. The results show that the response rate, the control stability and control accuracy of the system can meet technical requirements.

关 键 词：变压边力 电液比例技术 闭环控制 

分 类 号：TG386.32[金属学及工艺—金属压力加工]