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关于B样条曲面造型及其刀位数据计算的探讨 被引量:2
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作者 李永桥 谌永祥 《机械》 2004年第6期16-17,26,共3页
复杂形状零件的几何建模是数控编程的首要环节,选择合适的曲面造型方法有利于刀位计算和数控加工编程;本文采用三次B样条曲线为基础的双三次B样条曲面造型方法,并给出了其矩阵表达式,在此基础上能十分方便地进行点矢和法矢计算;针对该... 复杂形状零件的几何建模是数控编程的首要环节,选择合适的曲面造型方法有利于刀位计算和数控加工编程;本文采用三次B样条曲线为基础的双三次B样条曲面造型方法,并给出了其矩阵表达式,在此基础上能十分方便地进行点矢和法矢计算;针对该造型方法,还给出了三轴数控加工中的刀位数据计算方法。 展开更多
关键词 B样条曲面 数控加工 刀位 法矢
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Machining Robot with Vibrational Motion and 3D Printer-like Data Interface 被引量:2
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作者 Fusaomi Nagata Keigo Watanabe Maki K. Habib 《International Journal of Automation and computing》 EI CSCD 2018年第1期1-12,共12页
In this paper, a vibration motion control is proposed and implemented on a foamed polystyrene machining robot to suppress the generation of undesirable cusp marks, and the basic performance of the controller is verifi... In this paper, a vibration motion control is proposed and implemented on a foamed polystyrene machining robot to suppress the generation of undesirable cusp marks, and the basic performance of the controller is verified through machining experiments of foamed polystyrene. Then, a 3 dimensional (3D) printer-like data interface is proposed for the machining robot. The 3D data inter- face enables to control the machining robot directly using stereolithography (STL) data without conducting any computer-aided man- ufacturing (CAM) process. This is done by developing a robotic preprocessor that helps to remove the need for the conventional CAM process by directly converting the STL data into cutter location source data called cutter location (CL) or cutter location source (CLS) data. The STL is a file format proposed by 3D systems, and recently is supported by many computer aided design (CAD)/CAM soft- waxes. The STL is widely used for rapid prototyping with a 3D printer which is a typical additive manufacturing system. The STL deals with a triangular representation of a curved surface geometry. The developed 3D printer-like data interface allows to directly control the machining robot through a zigzag path, rectangular spiral path and circular spiral path generated according to the information included in STL data. The effectiveness and usefulness of the developed system are demonstrated through actual machining experiments. 展开更多
关键词 Computer integrated manufacturing machining robot computer aided design (CAD)/computer-aided manufacturing(CAM) cutter location cl data vibrational motion stereolithography (STL) data preprocessor 3 dimensional (3D) printer-likedata interface.
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