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Dual Drive Curve Tool Path Planning Method for 5-axis NC Machining of sculptured surfaces

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Chinese Journal of Aeronautics 2010年第4期23卷 486-494页

作者：徐汝锋陈志同陈五一吴献珍朱剑军北京航空航天大学机械工程及自动化学院北京100191 昌河飞机工业集团景德镇333000

The problem of finished surface being not first-order continuous commonly exists in machining sculptured surfaces with a torus cutter and some other types of cutters. To solve this problem, a dual drive curve tool path planning method is proposed in this article. First, the maximum machining strip width of a whole tool path can be obtained through optimizing each tool position with multi-point machining （MPM） method. Second, two drive curves are then determined according to the obtained maximum machining strip width. Finally, the tool is positioned once more along the dual drive curve under the condition of tool path smoothness. A computer simulation and cutting experiments are carried out to testify the performance of the new method. The machined surface is measured with a coordinate measuring machine （CMM） to examine the machining quality. The results obtained show that this method can effectively eliminate sharp scallops between adjacent tool paths, keep tool paths smooth, and improve the surface machining quality as well as machining efficiency.

关键词： dual drive curve tool path planning multi-point machining 5-axis sculptured surfaces numerical control (NC) machining

A Tool Path Generation Strategy for sculptured surfaces Machining

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Computer Aided Drafting,Design and Manufacturing 2001年第1期11卷 10-18页

作者： Chen Tao Zhong Yifang Zhou Ji Huazhong University of Science and Technology, Wuhan 430074, China Huazhong University of Science and Technology Wuhan 430074 China

This paper presents a strategy to generate interference-free tool paths for machining sculptured surfaces. The strategy proposed here is first to determine the tool path topology. The values of the step length and the path interval are then calculated based on the machining tolerance requirements. After detecting and eliminating the tool interference, the interference-free tool path is generated. The effectiveness of the developed algorithm is demonstrated through simulation and actual cutting tests.

关键词： sculptured surfaces machining tool path generation gouging

Integration of a 5-axis Spline Interpolation Controller in an Open CNC System

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Chinese Journal of Aeronautics 2009年第2期22卷 218-224页

作者：王永章刘源韩振宇邵忠喜哈尔滨工业大学机电工程学院哈尔滨150001

A 5-axis controller with curve interpolation function is developed to satisfy high-speed and high-precision computer numerical control (CNC) machining of machine parts with complex shapes in the authors-devised open CNC system. The instruction for- mat of this interpolation method and the generation procedure of the numerical control (NC) files are introduced. The interpola- tion curves of both position vectors and orientation vectors constructed by the controller are C2 continuous and independent of machin...

关键词： numerical control systems sculptured surfaces 5-axis machining motion control curve interpolation