摘要
在模具3D含岛型腔加工的计算机辅助刀具选择系统中,几何约束提取是刀具选择的前提。基于UGNX和VC++6.0,开发了相交轮廓识别、环的识别以及平面内外环的判别算法,提取了各切削层的基本几何参数,为计算机辅助刀具选择提供了相应的几何约束。
During the computer-aided tool selection system of mold 3D pockets machining with islands, which often contains complicated free-farm surface, the fetching of geometric restriction is the precondition of tool selection. The algorithms of recognizing intersected profiles, loops and distinguishing inside and outside loops for mold 3D pocket in rough milling based on UG NX are explained.The basic geometric parameters, which are needed to select tools, are fetched. These parameters are used as the geometric restriction for the tool selection.
出处
《机械设计与制造》
北大核心
2008年第6期203-205,共3页
Machinery Design & Manufacture
基金
华北电力大学博士基金
教育部博士点专项科研基金资助(20020248017)
关键词
模具
几何约束
含岛型腔
粗铣加工
Mold
Geometric restriction
Pocket with Islands
Rough milling