U盘模具设计.docVIP

摘要 U盘是当今社会日常中必不可少的工具。U盘产品的外壳造型很多，市面上不断出现着各种款式，我们选用这一款U盘外壳（材料HDPE）HDPE，注射模具，Pro/ENGINEER ABSTRACT U disk is a daily tool, which is necessary in today’s society. The shell of U disk products is continuous updating following on the market requirement. We choose this shell shape of the U disk to mold design. Through the analysis and research, and consult involved technical literature, then choose the material and involved technical parameter, designed this style of U disk shell shape mold. The design project is divided into three parts. The first part is about the working theory and application of a plastic injection mould, the principle of designing and the introduction of the production about plastic mould. The second part is about the designing and calculation of the mould. It including: the selecting of the injection machine, the structure designing of the plastic mould and the inject system of mould. Pro/ENGINEER was used in this practice, it provide a good design environment for products design and mold design. It combined the process of products design with manufacture. 【KEY WORDS】 U disk , shells , HDPE , injection mold, Pro/ENGINEER 目 录1 引言 5 1.1 注塑模具概述 5 1.1.1注塑模具设计的特点 5 1.1.2 注塑模具的组成 5 1.1.3 注塑模具的分类 6 1.2 Pro/E注塑模具概述 7 1.2.1 Pro/E概述 7 1.2.2 Pro/E 注塑模具设计解决方案 7 1.2.3 Pro/E模具设计的基本流程 7 1.2.4 Pro/E注塑模具设计的应用 8 1.2.5 基于Pro/ENIGEERING的 CAD/CAM的发展趋势 8 1.3本次选题的意义 9 2 U盘塑料外壳（塑件）造型设计 10 2.1 参数化设计概述 10 2.2基于Pro/ENIGEERING的参数化造型设计过程 10 3 注塑成型工艺的可行性分析 13 3.1 U盘外壳（塑件）的选材及其材料性能分析 13 3.1.1塑件材料的选用 13 3.1.2塑件结构工艺性分析 13 4 注射模具与注射机的关系 17 4.1模具型腔数量确定 17 4.2注射机有关参数校核 17 4.2.1注射机参数 18 4.2.2型腔数量校核 19 5 模具结构设计 21 5.1 塑料制件在模具中的位置 21 5.1.1型腔排列 21 5.1.2分型面设计 22 5.2 浇注系统与排溢系统设计 23 5.2.1主流道设计 23 5.2.2分流道设计 23 5.2.3冷料穴设计 25 5.2.4浇口设计 25 5.2.5排溢系统设计 26 5.3成型零部件设计 27 5.3.1成型零件结构设计 27 5.3.2成型零件工作尺寸计算 27 5.4标准模架选择 32 5.5合模导向机构设计 32 5.5.1导柱设计 33 5.5.2导套设计 33 5.6推出机构设计 34 5.6.1推杆数量及结构形式 35 5.6.2推件板设计 35 5.6.3定模弹簧 36 5.7温度调节系统设计 36 5.8温度调节系统设计 36 5.8.1冷却系统设计依据 36 5.8.2冷却系统参数计算 37 6 注射机