工学学士学位论文汽车后视镜注塑模具设计工学学士学位论文汽车后视镜注塑模具设计本 科 生：导师：申请学位级别： 工学学士工 程 领域： 机械工程所 在 单位： 机械工程学院答 辩 日期： 授予学位单位：Dissertation for the Bachelor Degree of EngineeringPlastic Injection Mould Design of a Rearview Mirror of an AutomobileCandidate：Supervisor：Academic Degree Applied for： Bachelor of EngineeringProfessional Field： Mechanical EngineeringDate of Oral Examination： March，2009University：- I -汽车后视镜注塑模具设计摘 要模具是工业生产中的重要工艺装备，是国民经济各部门发展的重要基础之一。由于我国塑料工业的快速发展，特别是工程塑料的高速发展。今后我国塑料模具的发展 速度仍将继续高于模具工业的整体发展速度。随着 CAD/CAE/CAM 软件智能化的高速 发展，塑料制件及模具的 3D 设计与成型过程中的 CAE 分析，将在我国塑料模具工业 中发挥越来越重要的作用。本次设计的课题是“汽车后视镜的注塑模具设计” 。通过对 其的工艺性分析，了解其生产技术要求，结合生产的实际环境和制造工艺性等，对其 进行了注塑模具设计。包括注塑成型工艺过程、分模面的设计、型腔设计、型芯设计、 具体结构设计、零件工艺性分析、标准件的选用。详细介绍了分型面、型腔布置、浇 注系统、排气系统、加热、冷却系统、顶出机构、脱模机构以及主要零部件的设计过 程。在设计中采用了新的设计思想和新的设计流程，即在整个设计周期内使用使用相 同的三维实体模型，以及使用一个基于知识库的三维辅助设计系统，从而降低了成本， 缩短生产了周期，提高了生产效率。关键词：关键词：塑料模具；注射成型；模具结构; 模具分析; CAD/CAM/CAE- II -Plastic Injection Mould Design of a Rearview Mirror of an AutomobileAbstractThe time，The mould is an important technical equipment in the industrial producing and an important basis in kinds of departments developing in nations economy. Because of the rapid development of Chinas plastic industry , especially in the aspect of engineering plastic. The plastic mould will develop more rapid than the whole mould industry in our country in the future. With the CAD/CAE/CAM softwares fast developing in intelligence, the plastic work pieces, the moulds 3D design and its shaping process computer aided engineering will play an important role in our countrys plastic mould industry more and more. The subject of this design is “The Plastic Injection Mould Design of a Rearview Mirror of an Automobile”. Analysis the manufacturing-ability for the rearview mirror, realizing its technical specifications and coal the practicality cases of production and manufacture-ability will be done to design the injection plastics mould. The plastic injection mould design includes the injection molding technological process, the parting surface design, the cavity design, the core design, the particular structural design, the parts craft analysis and the choice for standard components,etc. It is detailed in introducing the dividing plane, cavity disposing, the gating system, the gas withdrawal system, the heating or cooling system, the pack out or divorce mechanism，and the design process for the mostly parts. The new design concepts and new design methods are adopted in the design process. Lower costs, shorten production cycles and increased productive efficiency, as using three-dimensional CAD solid model and a 3D CAD knowledge-based assisted injection mould design system for all phases of the product-mould development life cycle.Keywords：plastic mould; injecting shape; mould structure; mould analyzing; CAD/CAE/CAM- III -目 录摘 要.I Abstract.II第 1 章 绪论 .1 1.1 目的.1 1.1.1 产品设计和重建模型.1 1.1.2 模具设计.1 1.1.3 模具制造.11.1.4 试具 修模.1 1.1.5 制品分析的设计要求.2 1.1.6 计算制品的体积和质量.2 1.1.7 明确塑料的特性.2 1.2 要求.3 1.3 设计思想和方法概述.3 1.4 设计软件选用.4 第 2 章 型腔总体布置与分型面的选择 .5 2.1 型腔总体布置.5 2.2 分型面的选择.5 第 3 章 注塑机的选用 .