凸轮轴磨削加工过程的动态优化和仿真

为了提高凸轮轴的加工效率及加工精度，开发凸轮轴磨削加工过程动态优化仿真模块．根据凸轮轴恒线速加工的数学模型，提出一种基于最小二乘法的速度优化算法，对加工过程运动曲线进行优化仿真，得到了波动较小的速度曲线并减小了联动轴加速度的跳动．在此基础上根据工艺系统各组件的运动轨迹完成凸轮轴加工过程的实时三维动态仿真，全面、逼真地反映现实的加工状态和加工环境，使操作者可以直观地观测加工过程中是否存在碰撞和干涉现象，对各种型号凸轮轴的生产具有指导意义．

Dynamic Optimization and Simulation of Camshaft Grinding Process

An independent dynamic optimization and simulation module for camshaft grinding was developed to improve the camshaft grinding efficiency and accuracy.First, an optimization algorithm based on the constant linear velocity mathematical model of the camshaft was proposed according to the least square method to finish the curve optimization and simulation, and the fluctuations of the speed and acceleration curves were reduced.Then, on the basis of the optimized motion curves, the real time 3-dimension dynamic simulation of the camshaft grinding process was finished to perform the machining status according to the motion path of the process system components.The user could directly observe whether there were collisions and interferences during the grinding process.So this optimization and simulation module will provide guidance for the production of different kinds of camshafts.