摘要
常规无干涉刀位轨迹优化方法通过计算相邻轨迹间残余高度实现轨迹优化,容易受到刀具接触点曲率分布的影响,使得加工耗时较长。因此,文章提出曲轴件数控加工刀具的无干涉刀位轨迹优化方法。通过分析曲轴件结构和刀位走向,确定刀轴矢量组,结合设定的数控加工坐标系,根据后跟倾角计算接触点曲率分布,基于等效曲率,对刀轴偏置线进行索引,进而实现刀位轨迹的优化。仿真结果表明,该方法能够极大地缩短加工耗时,提高加工效率。
The conventional non-interference tool position trajectory optimization method realizes trajectory optimization by calculating the residual height between adjacent trajectories.This method is easily affected by the curvature distribution of the tool contact points,which makes the machining time take a long time.Therefore,this paper proposes a non-interference tool position trajectory optimization method for CNC machining tools for crankshaft parts.By analyzing the structure of the crankshaft and the direction of the tool position,the tool axis vector group is determined,and combined with the set numerical control machining coordinate system,the contact point curvature distribution is calculated acording to the heel inclination angle.Based on the equivalent curvature,the tool axis offset line is indexed,and then the tool position trajectory is optimized.The simulation results show that the method can greatly shorten the machining time and improve the machining efficiency.
作者
刘飞
LIU Fei(Kunming Vocational and Technical College of Industry,Kunming 650302,China)
出处
《计算机应用文摘》
2023年第12期268-272,共5页
Chinese Journal of Computer Application
基金
昆明工业职业技术学院2023年度校级科研项目:深化产教融合对接地方企业提升数控技术专业社会服务能力的实践研究(2023-03)。
