基于回转车床的正多面体车削及刀尖轨迹仿真

Simulation on Regular Polygon Forming and Locus of Knifepoint Based on Rotary Cutting Machine Tool

通过对一种正多边形回转车削简易装置的分析,阐述了正多边形回转车削成形原理,并建立了刀尖相对于工件的轨迹方程。在此基础上论述了正多边形边长误差的产生及修正,并对其直线度误差的产生作了较详细的分析,为保证回转车削多面体零件的精度提供了理论依据,提高了多面体加工的效率。使用VB语言编程对刀尖轨迹进行了动态仿真,从仿真得到的刀尖轨迹曲线,更好地证明了正多边形轨迹在回转车床上的实现。

Through analyzing a simple rotary cutting device for regular polygon, the forming principle was introduced, and the equation of knifepoint relative to workpiece was established. Then, the reason for length error of the polygon and the method of modifying were discussed along with straightness error. Hence, the precision of regular polygon cutting on rotary cutting machine tool gets assurance, and the work efficiency increases. By programming with VB, the dynamic simulation for locus of knifepoint was performed. Furthermore, the modeled curve of knifepoint, which proves the locus of regular polygon realized on rotary cutting machine tool can be actualized.