加工中心进给系统机电耦合动态特性研究

Research on electromechanical coupling dynamic characteristics of feed center in machining center

以研究动态特性为目的,结合运动特性分析,选择了VMC850立式加工中心为研究对象。通过结合该型号加工中心的三维模型,在对三闭环PID控制方法进行分析的基础上,建立了三环伺服控制系统,最终结合机电联合平台对所做分析进行了仿真验证。根据其结果得到了切近于真实加工现状的实际轨迹以及关于进给系统的相关参数,其中包括位移、速度、载荷以及加速度等。对该加工轨迹进行的分析将有利于进行加工路径预测和优化。

In order to study the dynamic characteristics and combine the kinematics analysis,this paper selects the vertical machining center with model VMC850 as the research object.Based on the three-dimensional model of the machining center of the model,based on the analysis of the three closed-loop PID control method,the three-loop servo control system was established.Finally,the actual analysis was carried out by combining the electromechanical joint platform.According to the results,the actual trajectory close to the actual processing status and related parameters about the feed system,including displacement,velocity,load and acceleration,are obtained.Analysis of this machining trajectory will facilitate machining path prediction and optimization.