SimulationX及硬件在环仿真在伺服压力机设计和研究中的应用

Application of SimulationX and Hardware-in-the-loop in Design and Research of Servo Precision Press

锻压装备水平是衡量一个国家装备制造业水平高低的重要指标,具有复合性、高效率、高精度、高柔性和低噪环保等特点的伺服控制精密压力机是锻压设备的发展方向。针对新型精密伺服锻压设备存在的非线性、电动机精确同步与控制等瓶颈问题,在分析该类压力机工作原理并进行运动反求的基础上,利用机电控多学科领域知识集成,在多领域统一建模软件SimulationX中构建压力机仿真模型,分析机械结构的合理性及精度可靠性并寻求非线性控制策略,结合Beckhoff控制器搭建基于过程控制对象链接与嵌入(Object linking and embedding(OLE)for process control,OPC)通信协议的硬件在环仿真平台,验证控制策略的可行性,解决了同步问题;并将该控制方案运用在双点伺服压力机上进行重复停止精度试验,实现重复停止精度在±10μm以内。研究表明,SimulationX及硬件在环仿真应用在伺服压力机设计中是可行的。

Press equipments is an important indicator of measuring a country＇s manufacturing industry developed level.The precision servo control press with complex,high efficiency,high precision,high flexibility and low noise,is the development trend of press equipments.According to the bottleneck problems of new type precision press,such as non-linear,the Synchronization of driving motors and the control strategy of the motors,this paper built a simulation model of the press in the multi-domain uniform modelling software SimulationX by the use of the integration of the mechanism-electronic-control knowledge,based on the analysis of the working principle of the press and the motion reverse solving.Analyse the rationality and precision reliability of the machine,search the control strategy for the non-linear,and use the Beckhoff controller to build the hardware-in-the-loop simulation platform based on the object linking and embedding（OLE）for process control（OPC） communication protocol.The simulation results show that the control method is feasible and the problem of synchronization has been solved.Do test of the duplication stopping accuracy by using the control strategy above and duplication stopping accuracy is achieved in ±10 μm.The research shows that it＇s feasible to use SimulationX and hardware-in-the-loop in designing a dual-servo precision press.