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沈阳航空工业学院机械与汽车学院
纸质出版:2010
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朱虎, 张利芳. STL数据模型粗加工刀具轨迹生成[J]. 中北大学学报(自然科学版), 2010,31(2):100-103.
朱虎, 张利芳. Rough Machining Tool Path Generation for STL Data Model[J]. 2010, 31(2): 100-103.
提出了以顶点偏置算法和分阶段偏置几何体的方式生成适合于三轴数控铣削加工中基于环形刀(filled-end mill)的粗加工刀具轨迹的方法.首先生成一个偏置环形刀圆角半径距离的STL偏置模型
并用水平切平面切割偏置模型;然后在切平面内偏置截交线来确定加工区域
并规划刀具轨迹;最后把每一层面上的刀位轨迹按zig-zag方式连接构成整体加工轨迹.算法应用实例表明:该算法不仅计算简单
而且生成的刀具轨迹可完全避免干涉.
A tool path generating method for rough machining in 3axis CNC machining was proposed by using vertex offset algorithm in multi-step offset method.First an offset model of STL was established by offsetting the original model to a distance from cutter corner radius
and sliced by horizontal planes.Then the intersection lines in horizontal plane and offset model of STL were offset to decide the machining area in each horizontal plane
and the tool path planning was done.Finally a whole tool path was generated by connecting all tool path segments with zig-zag pattern.The practical case study indicates that this algorithm is simple in calculation and can generate an interference-free tool path.
Kim S J,Yang M Y.Incomplete mesh offset for NC machining[J].Journal of Materials Processing Technology,2007,194(1-3):110-120.
Kim D S,Jun C S,Park S Y.Tool path generation for clean-up machining by a curve-based approach[J].Computer-Aided Design,2005,37(9):967-973.
Lee C S.Tool-path generation in NC machining of automobile panel die[J].Korea Society of Automotive Engineers,1994,2(5):74-84.
曾晓华,刘静华,闫光荣.基于STL数据模型的刀具轨迹生成[J].工程图学学报,2002,11(1):8-14.Zeng Xiaohua,Liu Jinghua,Yan Guangrong.Tool path generation based on STL data model[J].Journal of Engi-neering Graphics,2002,11(1):8-14.(in Chinese)
Jun C S,Kim D S,Park S Y.A new curve-based approach to polyhedral machining[J].Computer-Aided Design,2002,34(5):379-389.
Qu X Z,Brent S.A 3D surface offset method for STL-format models[J].Rapid Prototyping Journal,2003,9(3):133-141.
Kim S J,Lee D Y,Yang M Y.Offset triangular mesh using the multiple normal vectors of a vertex[J].Computer-Aided Design and Application,2004,1(1-4):285-292.
任乃飞,万俊,胡汝霞.基于拓扑关系的STL文件格式研究[J].农业机械学报,2005,36(11):143-145.Ren Naifei,Wan Jun,Hu Ruxia.Study on STL file presentation based on topological triangle[J].Transactions ofthe Chinese Society of Agricultural Machinery,2005,36(11):143-145.(in Chinese)
张利芳,朱虎.面向STL偏置模型的拓扑信息生成[J].沈阳航空工业学院学报,2008,24(4):42-43.Zhang Lifang,Zhu Hu.Topological information generation for STL offset model[J].Journal of Shenyang Instituteof Aeronautical Engineering,2008,24(4):42-43.(in Chinese)
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