复杂结构件数控加工浮动装夹自适应控制方法

为了减小复杂结构件数控加工产生的变形,满足装夹自适应调整需求,基于浮动装夹加工原理提出了浮动装夹自适应控制方法,研究了基于CAN(Controller Area Network)总线的浮动装夹系统通信、零件受力和变形的监测与检测、基于OPC(OLE for Process Control)的机床状态监测、数控机床和夹具协同控制等关键技术,开发了浮动装夹自适应控制系统。此系统在航空制造企业进行了实际加工应用验证,能够实现装夹自适应调整,满足工业应用需求。

An Adaptive Control Method of Floating Fixture for NC Machining of Complex Structural Parts

In order to reduce the deformation of complex structural parts caused by NC machining,and to meet the requirement of adaptive adjustment of fixtures,an adaptive control method is proposed based on the machining principle of floating fixture.The floating fixture units communicate with each other by CAN (Controller Area Network) bus.Part condition monitoring method based on multiple sensors is developed,machine tool condition is monitored based on OPC technology,the floating fixtures and CNC machine tool interact based on PLC.The floating clamping adaptive control system is developed.The adaptive control system for floating fixtures has been verified in the aviation manufacturing enterprise during the machining of aircraft structural parts,the control system can realize the adaptive adjustment of floating clamping and meet the industrial application requirement.