鼓形刀宽行刀位优化纬线分割算法

李正强; 陈志同; 肖俊

鼓形刀宽行刀位优化纬线分割算法

北京航空航天大学机械工程及自动化学院, 北京 100083

基金项目: 国家自然科学基金资助项目

详细信息

作者简介:
李正强(1981- ),男,湖北襄樊人,硕士生,lizheng_2004@126.com.

中图分类号: TP 391.73
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- 文章访问数: 2617
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- 被引次数: 0
出版历程
- 收稿日期: 2006-08-08
- 网络出版日期: 2007-06-30

Latitude distribution algorithm of cutter position optimization on drum-like cutter for strip-maximization

School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 为便于鼓形刀定位和姿态调整,结合最短距离线对思想,将刀具沿纬度方向进行离散.为使刀具更好地适应工件的曲率分布,实现广域曲率分布吻合,采用单点切触方法,在加工曲面一定范围内寻求最佳切触点,以达到最大切削行宽;分别采用等参数和等波高2种刀位优化算法,编制了程序;通过实例验证了新算法在避免干涉并获得最大行宽、以及实现等参数和等波高刀轨排列方面的有效性.该技术对于提高航空复杂曲面结构件的加工效率和加工质量具有重要意义和广泛的应用前景.
- 鼓形刀 /
- 单点切触 /
- 最短距离线 /
- 宽行切削 /
- 优化刀位
Abstract: Based on the theory of the shortest lines, the drum-like cutter was dispersed along the latitude direction convenient for the cutter location and pasture regulation. For global fitting the curvature distribution of the cutter and the surface to be machined, cutter was firstly located to one point at the machining surface; the best contact point was searched in a certain range at the machining surface for the maximum bandwidth. The iso-parametric tool-path planning method and the iso-scallops tool-path planning method were used. A program was developed to verify the validity of the new algorithm in avoiding interference, realizing maximal path interval, achieving the iso-parametric tool-path planning method and the iso-scallops tool-path planning method. It is very important and can be widely used to promote the machining efficiency and the quality of the machining sculptured surface in navigation apparently.
- drum-like cutter /
- single-point contact /
- the shortest line /
- strip-maximization cutting /
- optimal tool position

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参考文献(1)

[1] Madhavulu G, Sundar S V N A, Ahmed B. CAD/CAM solutions for efficient machining of turbo machinery components by sturz milling method[J]. Industrial Electronics Control and Instrumentations, 1996, 3(8):1490-1495 [2] Rao N, Ismail F, Bedi S. Tool path planning for five-aixs machining using the principal axis method[J]. Int J Machine Tools Manufact, 1997, 37(7):1025-1040 [3] Gray P, Bedi S, Ismail F. Rolling ball method for 5-axis surface machining[J]. Computer-Aided Design, 2003, 35(4):347-357 [4] Max E, Jorg W, Thomas S. Method for processing work pieces by removing material:United States,US6, 485, 236 .2002-11-26 [5] 刘雄伟,张定华,杨海成,等. 数控加工理论与编程技术[M]. 北京:机械工业出版社,2000 Liu X W, Zhang D H, Yang H C, et al. NC machining theory and programming technologies[M]. Beijing:Mechanical Industry Press, 2000(in Chinese) [6] 李亢,郭连水. 透平机叶轮叶片五轴数控粗加工优化方法的研究[J]. 航空学报,2006,27(3):505-508 Li K, Guo L S. Research on method of 5-axis NC rough machining of turbine blade[J]. Acta Aeronautica et Astronautica Sinica, 2006, 27(3):505-508(in Chinese) [7] 吕雪丽. 广域曲率吻合原则与复杂曲面数控加工的全面优化．北京:北京航空航天大学机械工程及自动化学院,2003 Lü X L. Global curvature inosculate principle and comprehensive optimization of complex surface NC machining . Beijing:School of Mechanical Engineering and Automation,Beijing University of Aeronautics and Astronautics,2003(in Chinese) [8] 金曼,张俐,陈志同. 圆环面刀具五坐标加工端点误差控制刀位优化[J]. 北京航空航天大学学报,2006,32(9):1125-1128 Jin M, Zhang L,Chen Z T. End-points error controlling method for torus tool position optimization in five-axis NC machining[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006,32(9):1125-1128(in Chinese) [9] 吕雪丽,张洪. 广域曲率吻合原则与复杂曲面数控加工的全面优化[J]. 机械设计与制造,2003,10(5):94-96 Lü X L, Zhang H. Principle of global curvature fitting and global optimization of sculptured surface NC machining[J]. Machinery Design and Machining,2003,10(5):94-96(in Chinese) [10] Warkentin A, Ismail F, Bedi S. Comparison between multi-point and other five-axis tool positioning strategies[J]. Machining Tool & Manufacture,2000,40(2):185-208

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