基于UG的玩具汽车外壳三维设计本科毕业设计.doc

成 都毕 业 设 计 （论 文） 设计（论文）题目： 系 部 名 称： 专 业： 班 级： 二O一 年 月 Abstract This topic is the 3D design and NC machining of the toy car based on UG. Design this paper explains why UG was selected in many parts, 3D design software, UG software has what advantage. Then the three-dimensional modeling design for toy cars, and the problem encountered in the design process of the considerations listed. Because the model is a plastic model selection of injection mold, mold design. The basic process of die design for load components, initial setting, type of preparation, create parting line, create parting surfaces, extraction of core and cavity area, to create the core and cavity. The whole process has two kinds of methods. A manual type, using the modeling environment with the command finished typing. Another is the automatic classification, with start wizard injection command to follow the instructions provided to typing. Then is the processing of the core and cavity. The parts of the processing using UG software, tool path generation, and export procedures in the Yulong NC simulation imitating the real machining. The preparation processing of parts of the material, carries on the analysis processing characteristics. The number of milling part of the preparation of machining process card, and process card. The number of not milling machining parts, design of electrode, using edm.Keywords: UG, 3D modeling, classification, process, electrode design, tool path design, Yulong simulation 目录 摘要 2 第一章 概论 5 1.1 简介 5 1.2对汽车加工的基本要素 5 1.3 汽车材料及性能 6 1.4课题的任务及技术 8 1.5课题的目的及意义 9 第二章 玩具汽车外壳的三维设计 10 2.1 UG软件的介绍 10 2.2 零件的测绘 10 2.4 完成主要零件的公母模设计 15 第三章 玩具汽车主要零件的制造工艺设计 19 3.1、型芯的数控加工工艺设计 19 3.2、型腔的数控加工工艺设计 26 3.3、主要零件的公母模零件的电极设计 28 第四章 主要零件的铣加工仿真 29 4.1 仿真加工的目的和分类 30 4.2加工程序 30 4.3宇龙仿真软件 31 第五章 绘制产品与相应的工