摘要
针对行切法加工带有岛屿的复杂型腔时,如何产生最短且无跳刀的刀具轨迹,提出了一种基于区域划分的刀具轨迹生成算法。首先通过区域划分理论将内外边界均为凸轮廓的复杂型腔的加工区域划分为若干单调子区域,然后在每个单调子区域中生成刀具轨迹,刀具加工完一个子区域,可以直接过渡到相邻子区域,不仅获得了无跳刀刀轨,加工中也不存在重复切削现象。最后将该方法与UG中的往复行切法进行了对比,验证了该算法的有效性。
An algorithm for tool path generation based on area dividing method, in order to generate the shortest path without tool retraction in a zigzag pocket machining of complex cavity with many convex islands, is given in this paper. Firstly, processing area of complex cavity whose inside and outside boundaries are both convex contour is divided into several monotony sub-regions through area dividing method. Then tool paths are generated in all monotony sub-regions. After the processing of a sub-region is finished, tool can directly transit into the next adjacent region. In this way, not only a tool path without tool retraction can be acquired, but also during the processing it doesn＇ t exist repeat cutting. Finally, it is compared with the zigzag cutting method in UG to illustrate the effectiveness of this algorithm.
出处
《组合机床与自动化加工技术》
北大核心
2014年第5期123-126,共4页
Modular Machine Tool & Automatic Manufacturing Technique
关键词
刀具轨迹
复杂型腔
区域划分
无跳刀
tool path
complex cavity
area dividing
without tool retraction
