直纹面叶轮刀具轨迹规划的研究(英文) |
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作者单位: | 哈尔滨工业大学机电学院 |
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基金项目: | Foundation item: Key Development Program of Science and Technology of Heilongiiang Province, China (GB05A501) |
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摘 要: | At present, most commercial computer-aided manufacturing (CAM) systems are deficient in efficiency and performances on generating tool path during machining impellers. To solve the problem, this article develops a special software to plan cutting path for ruled surface impellers. An approximation algorithm to generate cutting path for machining integral ruled surface impellers is proposed. By fitting sampling data points of an impeller blade into a curve, a model of ruled surface blade of an impeller is built up. Furthermore, by calculating the points where the cutter axis vector intersects the free-form hub surface of an impeller, problems about, for instance, the ambiguity in calculation and machining the wide blade surface with a short flute cutter are solved. Finally, an integral impeller cutting path is planned by way of an integrated cutter location control algorithm. Simulation and machining tests with an impeller are performed on a 5-axis computer numerically controlled (CNC) mill machine, which shows the feasibility of the proposed algorithm.
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关 键 词: | CAM 切割路径 侧面切割 叶轮 |
收稿时间: | 14 December 2007 |
Cutting Path Planning for Ruled Surface Impellers |
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Authors: | Liang Quan Wang Yongzhang Fu Hongya Han Zhenyu School of Mechatronics Engineering Harbin Institute of Technology Harbin China |
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Institution: | School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China |
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Abstract: | At present, most commercial computer-aided manufacturing (CAM) systems are deficient in efficiency and performances on generating tool path during machining impellers. To solve the problem, this article develops a special software to plan cutting path for ruled surface impellers. An approximation algorithm to generate cutting path for machining integral ruled surface impellers is proposed. By fitting sampling data points of an impeller blade into a curve, a model of ruled surface blade of an impeller is built up. Furthermore, by calculating the points where the cutter axis vector intersects the flee-form hub surface of an impeller, problems about, for instance, the ambiguity in calculation and machining the wide blade surface with a short flute cutter are solved. Finally, an integral impeller cutting path is planned by way of an integrated cutter location control algorithm. Simulation and machining tests with an impeller are performed on a 5-axis computer numerically controlled (CNC) mill machine, which shows the feasibility of the proposed algorithm. |
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Keywords: | CAM cutting path planning flank cutting impeller ruled surface |
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