数控铣、滚齿复合机床虚拟样机机电异构仿真

机电异构建模与仿真技术是数控机床动态性能分析的难点和重要方法之一.以带负载的电动机数学模型为基础,以数控铣、滚齿复合机床水平进给系统为研究对象,借助ADAMS/Controls模块将ADAMS动力学模型与MATLAB控制模型结合起来,建立机电异构系统的虚拟样机.在MATLAB7.0中对虚拟样机进行仿真,利用仿真结果分析了交流伺服电机在带负载情况下的控制力矩特性,为数控机床机械与电气参数匹配的研究奠定了基础.

Electro-mechanical Heterogeneous Simulation for Virtual Prototype of Complex NC Machine-tool from Milling and Hobbing

Electro-mechanical heterogeneous modeling and simulation technique,which is applied to NC machine tool,is one of the difficulties and important approaches to analyze dynamic performance. Based on the load mathematical model of servo motor,the horizontal feed system of the complex NC machine-tool from milling and hobbing was taken as research object to set up the virtual prototype of the electro-mechanical heterogeneous system by ADAMS/Controls,which is made up of mechanical dynamic model by ADAMS/View and control model by MATLAB/Simulation. The virtual prototype was simulated in MATLAB7.0,the results of which were used to analyze the load control moment characteristic of the AC servo motor,which offers a theoretical basis for matching electro-mechanical parameters of NC machine tool.