[1]孙全平,廖文和.叶轮曲面5轴高速铣加工刀轨生成算法[J].东南大学学报(自然科学版),2005,35(3):386-390.[doi:10.3969/j.issn.1001-0505.2005.03.014]
　Sun Quanping,Liao Wenhe.Algorithms of 5-axis tool-path generation for high speed milling impeller-surface[J].Journal of Southeast University (Natural Science Edition),2005,35(3):386-390.[doi:10.3969/j.issn.1001-0505.2005.03.014]
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叶轮曲面5轴高速铣加工刀轨生成算法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
35
期数:
2005年第3期
页码:
386-390
栏目:
计算机科学与工程
出版日期:
2005-05-20

文章信息/Info

Title:
Algorithms of 5-axis tool-path generation for high speed milling impeller-surface
作者:
孙全平1; 2;  廖文和1
1 南京航空航天大学机电学院, 南京 210016; 2 淮阴工学院机械工程系, 淮安 223001
Author(s):
Sun Quanping1; 2;  Liao Wenhe1
1 College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2 Department of Mechanical Engineering, Huaiyin Institute of Technology, Huaian 223001, China
关键词:
高速铣削;  5轴加工;  刀具轨迹;  碰撞检查
Keywords:
high speed milling;  5-axis machining;  tool path;  collision check
分类号:
TP391.73
DOI:
10.3969/j.issn.1001-0505.2005.03.014
摘要:
为适应高速切削,提出了一种新的侧刃铣削5轴加工刀轨生成算法和全局刀轨碰撞检查算法.算法的前者采用5次NURBS直纹面拟合原加工刀轨面,生成了全程C2连续的刀位曲线和空间平滑变化的刀轴矢量; 后者通过设置刀轴矢量变化的阈值并采用集合碰撞体,实现了刀位的跳点检查和集合运算检查.应用于Superman CAMⅡ原型系统中,经测试,刀轨生成算法的运行速度已接近于UG,用于精加工叶轮,叶片的表面质量可达到Ra 0.8 μm; 刀具碰撞检查算法不仅可实现集合体之间碰撞的快速检查,而且可精确地检查出碰撞干涉量.
Abstract:
Aiming at high speed machining, two new algorithms of 5-axis tool-path generation for flank machining and global checking on tool-path collision are put forward. The first algorithm, relying on quantic NURBS(non-uniform rational B-spline)rule-face fitting any other original face, generates C2-continuous CL(cutter location)-curve and even changed tool-axis vector. The second algorithm, depending on setting the threshold controlling tool-axis vector and using solid based on Boolean-operation, realizes unsafe CL-points and Boolean-operation check. The algorithms have been applied to Superman CAMⅡ prototype system, and the test results show that the algorithm of tool-path generation runs nearly as fast as that of UG software, and can acquire Ra 0.8 μm surface-quality in milling blades of impeller. The algorithm of checking on tool-path collision can rapidly detect cut-collision and figure out the gouged size.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 江苏省高技术研究计划资助项目(BG2001019)、国家高技术研究发展计划(863计划)资助项目(2002AA411030).
作者简介: 孙全平(1969—),男,博士,讲师; 廖文和(联系人),男,博士,教授,博士生导师,cnwho@nuaa.edu.cn.
更新日期/Last Update: 2005-05-20