机械设计制造及其自动化专业毕业论文--汽车轮毂盘的反求造型研究（可编辑）.docVIP

机械设计制造及其自动化专业毕业论文--汽车轮毂盘的反求造型研究 Reverse wheel drive model and NC Programming Abstract :Wheel drive vehicle in reverse engineering technology in the car design and production of a wide range of applications, it is the domestic auto industry to learn from the advanced design ideas, design concepts, greatly reducing product development costs, shorten the development cycle, enhance the enterprise competitiveness, and provide rapid product development capability, it is designed to improve the level of an important and indispensable tool. Firstly,This paper described the basic concept of reverse engineering, reverse engineering of domestic and international situation and development trend of the reverse modeling process, through access to information on the parts surface, measurement data preprocessing, reconstruction of three-dimensional model parts and processing to complete the implementation of reverse engineering. Basic steps and key technology of the automobile wheel drive anti-seeking by UG for modeling and NC programming. Secondly, modeling the process in reverse, using the point cloud model, using the basic method of reverse modeling, to create ideas to develop and master the projection curve, bridge curve, cross-section curve, the expansion surfaces, offset surfaces, swept surfaces, ruled surface, through curve mesh surfaces, trim and extended features, variable radius circular surface characteristics down to create the basic skills. Thirdly, through the wheel drive up and down the surface to create programs to create cutting tools, create geometry, the work piece to create, create method, create operation, cavity milling machining parameter settings, machining tool path generation and tool path simulation, the completion of NC ProgrammingFinally, it obtained the NC code by post-processing. Keyword: Reverse Engineering; Point Cloud Models; NC Programming;NC code. 目 录 1 引言 1.1 课题的背景及意义???????????????????????????????