| 五轴数控加工叶片无干涉刀位轨迹的计算 |
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| 引用本文： | 杨方飞,阎楚良,林洪义.五轴数控加工叶片无干涉刀位轨迹的计算[J].农业机械学报,2003,34(2):97-100. |
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| 作者姓名： | 杨方飞 阎楚良 林洪义 |
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| 作者单位： | 1. 中国农业机械化科学研究院,100083,北京市
2. 江苏大学能源与动力工程学院,212013,镇江市 |
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| 基金项目： | 国家自然科学基金资助项目 (项目编号 :5 0 13 5 0 10 ) |
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| 摘 要： | 根据微分几何特性，提出五坐标数控加工叶片时对叶片的工作面和背面的刀位轨迹计算分开予以讨论，对工作面而言，利用平头立铣刀加工时不存在干涉，而对背面而言，可能存在干涉。根据干涉的种类，分别对全局干涉和局部刀具干涉提出了快速判定依据，并对干涉点进行了修正。指出利用Iso-scallop法可获得最优的轨迹和蔗，并给出了实例。
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| 关 键 词： | 机械制造工艺与设备 叶片 平头立铣刀 刀位轨迹 干涉 |
Trajectory Computation of an Interference-free Cutter for Five-axis NC Machining of Blades |
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| Yang Fangfei,Yan Chuliang.Trajectory Computation of an Interference-free Cutter for Five-axis NC Machining of Blades[J].Transactions of the Chinese Society of Agricultural Machinery,2003,34(2):97-100. |
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| Authors: | Yang Fangfei Yan Chuliang |
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| Institution: | Yang Fangfei Yan Chuliang(Chinese Academy of Agricultural Mechanization Science) Lin Hongyi(Jiangsu University) |
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| Abstract: | The generation of an interference free cutter trajectory during blade machining by a five axis NC machine was investigated and analyzed. The trajectories of the pressure and suction surfaces of a blade should be individually calculated according to the theory of differential geometry. The results indicated that for the pressure surface machining by a flat end cutter the trajectory could be directly calculated because there was no interference occurred; while for the suction surface the calculation should be made prior to the determination of whether the interference existed. A quick detection method for global and local interferences was developed and a suggestion of adopting the Iso scallop method to obtain the optimum trajectory length was given. |
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| Keywords: | Machine maunfacturing technique and equipment Blades Flat end cutter Cutter path planning Interference detection |
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