用户宏程序在多线蜗杆加工中的应用探索

Exploration of the Custom Macro Program in the Processing of Multi-start Worm

由于蜗杆传动具有很多优点,被广泛应用于生产中,因此蜗杆加工(尤其是多线蜗杆加工)在机械制造领域具有非常重要的位置。蜗杆的齿形比较大,齿深比较深,切削面积大,因此在切削过程中容易造成震动、崩刀、扎刀、闷车等现象。在数控车床上加工也同样会产生类似问题,究其原因主要是Fanuc 0i-mate系统里没有专门用于切削蜗杆的加工指令,导致切削蜗杆时,切削工艺路线错误,不能合理高效的切削。Fanuc 0i-mate系统具有用户宏程序功能,可以利用用户宏程序自定义变量的特点,编写多线蜗杆加工程序,从而得到所需的多线蜗杆工艺路线,实现多线蜗杆合理高效加工。

As the worm drive has many advantages, widely used in production and life, therefore the worm pro- cessing （especially multi - start worm processing） is a very important in the field of machinery manufacturing. Because the worm has the larger tooth profile, the deeper tooth depth, the larger cutting area, it happen the problem of shake, breaking off, breaking edge, and drop - dead halt in the cutting process easily. And it is similar in CNC lathe. It does not have specifical instructions for worm processing in Fanuc 0i - mate system, lead to error of process routes in cut- ting, and not cutting reasonably and efficiently. It write NC program with custom macro program for multi - start worm, resulting in achieving processing routes, and realizing reasonable and efficient processing.