【作者】 郑嫦娥；

【导师】 钱桦； 张辉；

【作者基本信息】 北京林业大学 ， 机械设计及理论， 2003， 硕士

【摘要】 鞋楦数字化测量和数据处理技术是鞋楦数字化加工的关键技术，鞋楦数字化加工系统是计算机辅助量脚制鞋系统的重要组成部分。计算机辅助量脚制鞋系统主要包括脚型测量、模拟试穿、鞋款数据库、鞋楦数字化加工等部分。针对笔者的主要工作，本文重点阐述了计算机辅助脚型测量、鞋楦数字化测量、曲面重构、数控加工等内容。 依据脚的形态和构造规律，系统采用数码相机摄取顾客脚部特征视图，利用VisualC++6.0开发脚型提取软件，获得顾客的脚型数据。鞋楦的测量是在数控机床上进行，通过三维模拟量测头，跟踪扫描鞋楦回转表面，利用等弦高差记录点的坐标。测量结果采用B样条方法在Matlab5.3中进行测头半径补偿，通过给定不同的刀具半径计算出粗、精、半精加工的刀具轨迹。同时，在曲面重构的基础上，通过标准数据接口，也可以利用通用的CAM软件进行后置处理，生成数控加工代码。最后，利用数控铣床完成鞋楦的加工。更多还原

【Abstract】 The technology of digitizing and data processing is the key in digitizing shoe last. The system for digitizing & manufacturing shoe last is the important part of computei-aided shoemaking system using foot shape data, which mostly includes foot shape acquisition, shoe-wearing simulation, shoe datahase, digitizing shoe last etc. This paper focuses on computer-aided foot shape acquisition, shoe, last measuring, surface reconstruction and NC(numericalJy-controlled) manufacturing, achieved by the author.Due to the foot structure and biomechanics, the foot shape data is obtained from the foot characteristic views by digital camera and the program is developed by Visual C++6. 0. Shoe last measuring is carried on a NC machine with a 3D analogue probe. The probe scans the shoe last revolving body in tracing mode. The coordinates of those points are stored in the computer’ s memory according to chordal error. Based on the theory of B-spline surface, the probe compensation of the measuring result is accomplished by Matlabn.3, and the cutting tool paths of rough, semifinish, finish machining can be calculated with different radius. Furthermore, based on surface reconstruction the universal CAM software can also accomplish post-process and produce NC code. Finally, shoe last is made in the NC milling machine.更多还原