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TOOL ORIENTATION PLANNING FOR FIVE-AXIS CNC MACHINING OF OPEN FREE-FORM SURFACES

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文摘 For the geometry characteristics of open free-form surfaces, it is hard to consider global interference during the planning of feasible domains. Therefore, the optimal kinematic orientation of tool axis will no longer be confined to the boundary of feasible domains. In this paper, according to the principle demanding that the tool should be fitted to a surface as close as possible and relevant processing parameters, a feasible domain of tool orientation for each cutter contact is planned in the local feed coordinates system. Then, these feasible domains of the tool orientation are transformed into the same coordinates system of the machine tool by the inverse kinematics transformation. The linear equations based feasible domain method and Rosen gradient projection algorithm are used to improve the optimization process in precision and efficiency of the algorithm. It constructs the variation of tool orientation optimization model and ensures the smoothness of tool orientation globally. Simulation and analysis of examples show that the proposed method has good kinematics performance and greatly improves the efficiency.
来源 Journal of Systems Science and Complexity ,2013,26(5):667-675 【核心库】
DOI 10.1007/s11424-013-3173-3
关键词 Feasible domains ; five-axis CNC machining ; open free-form surface ; planning tool orientation
地址

1. Shenyang Institute of Automation, Chinese Academy of Sciences, Liaoning, 110016  

2. School of Electromechanical Engineering, Shenyang Aerospace University, Liaoning, 110136

语种 英文
文献类型 研究性论文
ISSN 1009-6124
学科 数学
基金 supported by the National Key Basic Research Project of China under Grant ;  国家自然科学基金
文献收藏号 CSCD:4945915

参考文献 共 14 共1页

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引证文献 2

1 Sun Yuwen VARIABLE FEEDRATE INTERPOLATION OF NURBS TOOLPATH WITH GEOMETRIC AND KINEMATICAL CONSTRAINTS FOR FIVE-AXIS CNC MACHINING Journal of Systems Science and Complexity,2013,26(5):757-776
被引 1

2 Zhao Kai High Speed Machining for Linear Paths Blended with G3 Continuous Pythagorean-Hodograph Curves Journal of Systems Science and Complexity,2022,35(4):1586-1607
被引 0 次

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