摘要本文介绍了鼠标底座注射模成型模具的设计流程与要点，包括注塑成型塑件的分析，注射机的选择和有关参数的校核，模具总体结构和零件的设计，模具装配图和零件图的绘制等。其中模具结构设计是关键，包括成型位置和分型面的选择，浇注系统设计，排气系统设计，成型零件设计，合模导向机构的设计，推出机构设计，侧抽芯机构设计以及冷却系统设计等。经校核检验，本模具结构合理，脱模顺利，能够很好的实现塑件的成型，保证塑件外观质量。60082

毕业论文关键词  鼠标底座  注射模  模具结构  模具装配

 毕业设计说明书（论文）外文摘要

Title    CAD design of the mouse of the injection mould   

Abstract

It was introduced the design process and the points about the injection mould of the bottom of the mouse in this paper, including of the analysis of injection molding, the choice of injection machine, the parameters check, the design of mold general structure and parts, the drawing of mold assembly and parts and so on. The design of mold structure was the key. It included of the selection of molding position and parting surface, the design of gating system, the design of exhaust system, the design of molding parts, the design of guide mechanism  for  punch progression, the design of ejecting mechanism, the design of side core-pulling mechanism and the design of the cooling system. Being checked, the structure of this mould was reasonable and can demould smoothly. The molding of the plastic part could be achieved well and the quality of the plastic parts surface was fine.

Keywords  bottom of the mouse  the injection mould  the mold structure   the mold assembly

目  录

1  绪论 1

1.1  塑料及塑料成型 1

1.2  模具工业的概况 1

1.3  我国模具技术发展趋势 1

1.4  计算机技术在注射模中的应用 2

1.5  毕业设计的目的和意义 2

2  塑料制件的设计 4

2.1  塑件的测绘 4

2.2  塑件的材料 4

2.3  塑件工艺性与结构分析 5

2.3.1  尺寸精度 5

2.3.2  塑件的壁厚 5

2.3.3  表面粗糙度 6

2.3.4  拔模斜度 6

2.3.5  圆角 6

3  塑件注射模具设计方案的确定 7

3.1  鼠标座模拟分析 7

3.1.1  建模 7

3.1.2  最佳浇口位置 7

3.1.3  充模时间 8

3.1.4  气穴 8

3.1.5  熔接痕 9

4  注射模具总体设计 10

4.1  选择注射机 10

4.2  型腔的确定 10

4.3  注射机的校核 11

4.3.1  最大注射量的校核