关键词: 鞋楦；数控加工；干涉处理；最小距离法

Abstract:

Using the discrete points of a shoe-last and tool three-dimensional model and their coordinate transformation in space, the interference check in shoe-last NC machining was simplified to minimal distance check along the project vector, and the algorithm for tool-path planning without interference was proposed. Then, a method of quickly looking for the point with the shortest distance was designed according to the feature of shoe-last surface, in order to resolve the problem of huge quantities of computation. Through actual machining on shoe-last machine, the method was verified correctly and can improve the quality and efficiency.

Key words: shoe-last, NC machining, interference avoiding;minimal distance method