鼠标底座的逆向造型和模具设计毕业论文.docx

鼠标本体的逆向造型和模具设计

【摘  要】：随着科技不断发展，企业也在不断的追求更好，更快的生产方式，生产技术也不断的研发创新，来跟上时代的步伐。逆向工程技术已经成为了当今产品设计师对产品设计和优化的重要手段之一。本文是以普通的鼠标本体为模型，通过逆向工程技术设计普通鼠标本体的三维模型，并设计鼠标本体模具的整个过程。
　　　由于鼠标本体曲面比较难以测绘，所以选择使用逆向工程技术进行模型的重建、优化。首先，由于鼠标本体为黑色，需要进行反光处理，要在鼠标本体表面喷上显光剂；然后，连接REVscan激光扫描仪与电脑等扫描工作准备好后，通过仪器的扫描获得鼠标本体的点云数据；其次，在处理鼠标本体的点云数据时，我们使用的是Geomagic Studio 软件，此软件能根据实物的点云数据对数据进行预处理和曲面重构；当处理好精确曲面后，保存成pro-e通用的格式——iges文件；然后在pro-e中打开进行实体处理，完成整个鼠标本体的重构；最后通过快速成型技术做出鼠标本体的模型，再写出鼠标本体的模具的设计计算过程。
【关键词】：逆向工程，模具设计，曲面处理，三维建模
　　　 
　　　Reverse mouse ontology modeling and design of the die
　

【Abstract】: With the continuous development of science and technology, companies are in constant pursuit of better, faster production, production technology keeps on research and innovation, to keep pace with the times. Reverse engineering has become today's product designers are one of the important means for product design and optimization. This article is based on modest mouse ontology for modeling, by reverse engineering design of a normal mouse ontology model of three dimensional and design mold throughout the main body of the mouse.
   As the mouse body surfaces are more difficult to survey and mapping, so optimization of model reconstruction, using reverse engineering techniques. First of all, as the mouse body is black, need to be reflective, light on body surface of the mouse you want to display agent; Then, connect REVscan laser scanner scanning to your computer when you're ready, through the instrument of scanned point cloud data of the main body of the mouse and, secondly, in the processing of point cloud data of the main body of the mouse, we're using Geomagic Studio software, this software according to the kind of data pretreatment and surface reconstruction from data cloud; Secondly, in the processing of point cloud data of the main body of the mouse, we're using Geomagic Studio software, this software according to the kind of data pretreatment and surface reconstruction from data cloud; when dealing with precise surface, save as a common Pro-e format--IGES file; then open the entity dealing with Pro-e, to complete the reconstruction of the main body of the mouse; Finally by rapid prototyping techniques mouse ontology model, and then writes out the mold design process of the main body of the mouse.
【Key words】: reverse engineering，  mold design，  Surface treatment，  3D modeling

    目录
　摘要1
　关键字1
1 绪论 5
1.1 课题的研究意义 5
1.2 逆向工程的基本概念 5
1.3 逆向工程的发展状况 6
1.4 逆向工程的应用领域 6
1.5 本课题研究内容： 7
2 逆向工程的基本步骤 7
2.1 点云数据的采集 7
2.2 扫描仪REVscan介绍 8
2.3 鼠标本体的扫描过程 9
2.3.1 准备工作 9
2.3.2 扫描过程详解 10
2.4 本章小结 11
3 鼠标本体的逆向造型建模和快速成型 11
3.1 逆向造型软件介绍 11
3.1.1 Geomagic Studio软件的介绍 12
3.1.2 Pro/E软件介绍 12
3.2 鼠标本体的逆向工程建模过程 12
3.3 鼠标本体的三维建模和快速成型 21
3.4 本章小结 24
4 鼠标本体模型的模具设计 24
4.1 鼠标本体的工艺分析 24
4.2 注塑工艺分析 24
4.3 鼠标本体模具浇注系统设计 26
4.3.1 主流道 26
4.3.2 分流道设计 28
4.3.3 浇口设计 28
4.3.4 冷料井的设计 28
4.3.5 排溢系统设计 29
4.4 侧向分型面与抽芯机构的设计 29
4.5 成型尺寸计算 29
4.5.1 凹模的设计 29
4.5.2 型芯尺寸的计算 30
4.5.3 型芯高度尺寸的计算 31
4.5.4 中心距离的尺寸计算 31
4.5.5 模具型腔侧壁和底版厚度的计算 31
4.6 导向定位机构设计 31
4.7 脱模机构设计 32
4.8 模温冷却系统设计计算 33
4.9 模具装配图 34
4.10 本章小结 34
结论 35
致谢 36
参考文献 37