摘要
基于数控裁床运动特性,针对速度前瞻算法模型中改变角不能完全约束衔接点速度的问题,采用区分轨迹类型的特殊插补方法,将离散衔接点规划为直线段和圆弧段平滑衔接,实现轨迹圆滑过渡和无冲击加工。文中在直线加减速模型下,优化了衔接点处速度限制条件,推导了衔接点处的速度计算方法。仿真结果和实际验证表明,所提法能实现机床的高速平稳加工。
Based on motion characteristics of CNC cutting,this thesis uses a special interpolation method of differentiated track types in order to solve the problem that speed in link point cannot always be restrained by change angle,it identifies discrete points as line segments and arcs and then smoothly link,and CNC cutting works smoothly and no shock along the tack at last. Under the model of linear acceleration and deceleration,the thesis optimizes the restrictions of the speed in link point and speed in link point of calculation method is derived.
出处
《电子科技》
2017年第10期108-111,共4页
Electronic Science and Technology
关键词
平滑衔接
加减速控制
高速平稳
smootii convergence
acceleration and deceleration control
high speed smootii machine
