基于ProE的CNC自动换刀装置组合凸轮机构建模及仿真研究.doc

湖南理工学院毕业设计(论文) PAGE PAGE II 学号*************** 毕业设计(论文) 题目：基于Pro/E的CNC自动换刀装置组合凸轮机构建模及仿真研究 作 者 **** 届 别 2011 届 院 别 机械工程学院 专 业 机械设计制造及其自动化 指导教师 **** 职 称 讲 师 完成时间 2011年5月 湖南理工学院毕业设计(论文) - PAGE IV - 摘 要 文章首先对目前主流三维设计软件 Pro/Engineer 主要特性进行分析研究，了解计算机仿真的概念、特点及其应用；接着，针对CNC自动换刀系统，着重分析了其双半球形滚子齿式弧面凸轮分度机构结构特点和工作原理，为运动仿真制作奠定基础；继而，以理论分析为基础，提出设计方案。包括运动规律、共轭特征、点啮合方程、接触轨迹和接触域等。编写 Pro/Program 程序，实现零件的参数化建模，并提供用 Pro/Program 实现参数化建模的一般方法，对以后建造特征类似的三维模型，在缩短造型周期，节约造型时间方面，具有一定的实用价值；最后，用 Pro/Engineer 对双半球形滚子齿式弧面凸轮机构和ATC其他部件进行实体建模，通过运动仿真，证实所设计的系统具有良好的运动性能，达到预期设计目标。 关键词：Pro/E；自动换刀装置；空间凸轮机构；双半球形滚子齿式弧面凸轮 ABSTRACT First of all, the paper analyze the main characteristics of the current mainstream three-dimensional design software—Pro/Engineer and introduce the computer simulation conception, characteristics and applications. Secondly, focus on analyzing institutions of Double hemispherical roller wall-climbing CAM， in order to laying the foundation of motion simulation. Thirdly, Based on theoretical analysis, and presents the design scheme. Including motion, conjugate characteristics, some meshing equation, contact trajectory and contact domain, etc build their geometric math model, compile the Pro/Program procedures, accomplish the parametric modeling of parts, and provide the method of parametric modeling by using Pro/Program module. All these works would have some practical value on reducing the modeling cycle, saving design time when building three-D model with similar characteristics. Finally, Using Pro/e triturated according to double hemispherical roller CAM and ATC wall-climbing entity modeling, other parts through sports simulation, confirmed by design system has good sports performance and achieve expected design goal. Keywords: Pro/Engineer; Automatically change tool device ; Spatial CAM ; Double hemispherical roller CAM curve analysis 目 录 TO