电脑风扇的塑料模具设计与数控加工编程

材料成型及控制工程论文，论文编号:JX1368  论文字数:16112.页数:37

摘 要
 随着现代工业发展的需要，塑料制品在工业、农业和日常生活等各个领域的应用越来越广泛，质量要求也越来越高。在塑料制品的生产中，高质量的模具设计、先进的模具制造设备、合理的加工工艺、优质的模具材料和现代化的成型设备等都是成形优质塑件的重要条件。
 本文通过对电脑风扇注塑模具的要求进行分析。然后利用Pro／Engineer的模块功能结合产品的特性进行模具结构设计。确定了分型面、浇注系统，推出机构、冷却系统等，选择了注射机，计算了成型零部件的尺寸。并根据按钮零件注塑模具的要求对注射机的各参数进行了校核。最后用AutoCAD软件绘制了一套模具的装配图和零件图。最后，对模具的型芯、型腔进行体积块加工、轮廓加工、曲面加工等加工方法进行模具加工。

关键词：电脑风扇  注塑模具  模具设计  数控编程

Abstract
 With modern industrial development, the plastic products industry, are widely used in agriculture and daily life, and other fields, also the quality requirements have become more sophisticated. In plastic products, the production and quality of mold design, advanced mold manufacturing equipment and reasonable processing, die quality materials and modern equipment are molding quality plastic parts forming an important condition.
This paper discussed the design of plastic injection mould of button parts. Use Pro／Engineer of the characteristics of the products for mold design. The author determined the parting surfaces and the gating system and Release the organization, cooling system etc, choose the injection molding machine，calculated the sizes of the molding parts. adopted to sprinkle directly in the design, make use of to keep lead the pillar direction fixed position, push the pole crest to anticipate, and carried on the choice to the material of the molding tool. According button injection mold parts to the requirements of the injection parameters of the machine was calibrated. And the author also drew a set of mold assembling chart and parts chart using AutoCAD software. Finally, the mold core, cavity to block the processing volume, the outline of processing, surface processing and other processing methods mold processing.
 
Keywords: Computer fans   Injection mold   Die design   NC Programming

目 录
摘 要 i
Abstract ii
目 录 iii
第一章 概述 1
1.1注塑模具的的国内外现状及发展趋势 1
1.2注塑模具简介 2
1.2.1注塑模具的组成 2
1.2.2注塑模具的分类 3
第二章 基于Pro／E的塑料制品的设计 6
2.1塑料制品设计基础 6
2.1.1塑料性质 6
2.1.2塑料设计工艺要求 6
2.2注塑件设计要点 8
2.3 Pro／E塑料制品设计基本流程 10
2.4 零件的分析 10
2.4.1零件材料 10
2.4.2零件注塑工艺分析 10
2.4.3零件结构 11
2.4.4零件的体积 11
第三章 注塑模具设计 13
3.1注射机初选 13
3.2型腔数目的确定 13
3.2分型面的选择 15
3.3浇注系统设计 16
3.3.1浇注口设计 16
3.3.2主流道设计 17
3.4结构零部件设计 18
3.4.1注射模的标准模架 18
3.4.2固定板、支承板 19
3.4.3支承件 20
3.4.4动定模座板 21
3.4.5合模导向机构设计 21
3.5成型零部件设计 23
3.5.1侧壁厚度的计算及校核 23
3.5.2型腔底板厚度的计算及校核 24
3.6推出机构设计 25
3.7冷却系统的设计 26
3.8排气系统的设计 27
3.9模具闭合高度的确定和校核 28
第四章 加工工艺 29
4.1凸模工艺分析及刀路规划 29
4.1.1凸模分析 29
4.1.2刀路规划 29
4.2凹模工艺分析及刀路规划 29
4.2.1凹模分析 29
4.2.2刀路规划 30
第五章 总结 31
参考文献 32