摘要
提出了一种用隐藏曲线消除算法来确定５轴ＮＣ加工无干涉可加工性区域的方法．该方法基于高斯映射理论，将５轴铣削的可加工性区域变换成３轴铣削的可加工性区域，也就是，首先应用ＭＳ映射对加工曲面Ｓ（ｕ，ｖ）和约束表面Ｋ（ｓ，ｔ）进行数值计算，然后在正交子空间中采用隐藏曲线消除算法，将加工曲面的隐藏区域裁剪掉，则剩余部分能用平底刀在没有被约束表面干涉的情况下进行５轴ＮＣ加工．
Proposed in this paper an approach that the hidden curve removal algorithm is used to determine the 5 axis millable areas of interference free, which reduces the accessibility problem of 5 axis milling using a flat end tool to a 3 axis accessibility problem based on the Gaussian mapping. That is , using the M S mapping of a point q above surface S(u,v) and of constraining surfaces K(s,t), the surface S(u,v) regions that are hidden by constraining surfaces K(s,t) can be computed in the orthogonal space D, then the domain of the surfaces S(u,v) that can be milled using 5 axis flat end tool without interference to constraining surface K(s,t) can be calculated by trimming away the hidden regions
出处
《应用科学学报》
CAS
CSCD
1998年第4期385-391,共7页
Journal of Applied Sciences
关键词
消隐算法
可加工性区域
NC加工
干涉检查
axis machining, hidden curve removal algorithm, millable regions, cutter interference
