异形零件分型线的自动创建方法

Automatic creation method of parting line for abnormity part

针对异形零件分型线创建困难的问题,提出了一种自动创建分型线的新方法,该方法基于最大轮廓原则和有限元法,首先在零件表面上创建多条平行的网格线,然后利用VB语言程序在网格线上创建等分点,并使用冒泡法查找到最大轮廓点,再将这些点连成曲线,即为零件的分型线。最后根据该分型线设计模具,并成功进行了零件的制备。结果表明,该方法具有较高的效率和实用性。

In order to solve the difficult problem of creating parting line for abnormity part, a new method of automatic creating parting line for this kind of part was presented, which is based on maximum profile principle and finite approach. Firstly, some parallel grid curves are created on the surface of this part. Then equal points are created automatically on each grid curve by using VB language programs, and the points on the maximum profile are searched by bubble sort algorithm. Afterward the parting line was created by connecting these points into curves. Finally, mold has been designed according to these curves and the part has been manufactured successfully. The results show that the proposed method is effective and efficient.