数控仿真系统中碰撞干涉算法研究

Research on the Collision and Interference Arithmetic in Numerical Control Machining Simulation

碰撞干涉检验是数控仿真的主要目的之一。本文把碰撞干涉分成了4种不同的情况,对不同的情况提出了不同的检测方法,对刀具的切削部分及非切削部分和工件表面的干涉作了详细的分析,提出并求解了曲面到刀轴线的最小距离,并以此作为碰撞干涉的依据。

The collision and interference checking is one of the main purposes of the NC process simulation. The collision and interference was divided into 4 types, the different examination methods were put forward respectively to 4 types. The interference of the cutting part and non - cutting part of the cutting tool＇ s surface were analysed. The minimum distance from free - form surface to the axis of cutter was calculated, which is the thereunder of the collision and interference.