数控加工过程中进给速率F的优化方法

Optimization study of feed rate(F) in NC

根据加工仿真过程所获得的主轴转速、进给速率、刀具切削宽度和切削深度信息,对数控程序中进给速率的自动分配方法进行研究,提出了以单位时间内刀具所允许切削的材料的体积为依据,为数控程序分段分配进给速率的方法,实现了进给速率的自动优化分配。最后通过一个加工实例,验证了仿真系统各个模块的功能,通过分析比较,证明提出的进给速率分配策略有效性,同时发现了系统的不足,并提出了改进方向。

Based on the information,such as feed rate,spindle-speed,cut-depth and cut-width of tool,which are gotten from the simulation process,the auto-process method of feed-rate is studied,and a strategy based on the amount of material removed in a time unit,automatically calculating and inserting improved feed rates where necessary into the NC program is presented,and the auto-distribution of feed-rate is completed.Finally,an example is presented to demonstrate the good performance of graphic machining simulation system.According to analytical comparison,the validity is proved.Meanwhile,the deficiencies of the system are discovered,and the later work of this paper is pointed out.