台式电脑立式机箱前面板【4张图纸/20000字】【优秀机械毕业设计论文】
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台式
电脑
立式
机箱
面板
优秀
优良
机械
毕业设计
论文
- 资源描述：
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文档包括:
说明书一份,52页,20000字左右.
文献综述一份.
PPT答辩稿.
实习报告一份.
三维图纸.
图纸共4张:
A0-装配图.dwg
A1-凹模.dwg
A1-凸模.dwg
A2-工件图.dwg
目录
摘要 1
ABSTRACT 2
第一章 绪论 3
1．1我国模具工业及塑料模的发展现状 3
1．2 中国模具工业的产业特点 4
1．3 模具工业及塑料模技术今后在我国的发展方向 5
1．4 PRO/ENGINEER 2001简介 7
1．5 注射模简介及PRO/ENGINEER 2001在注射模设计过程中的应用 8
第二章 电脑机箱前面板模型设计 9
2．1 机箱前面板结构分析 9
2.1.1 自顶向下设计简介 9
2.1.2 电脑机箱前面板结构分析 10
2．2塑件的选料及其性能 11
2．3机箱前面板注射成型工艺过程 11
2．4 机箱前面板模型设计过程 12
2.4.1 初步造型抽壳，切除各预留孔 12
2.4.2 模型设计美化 17
2.4.3 支撑柱及加强肋制作 18
2.4.4 USB及音箱前置孔设计 22
2.4.5 整体模型设计 22
第三章 注射机选择 24
3.1 注射机规格 24
3.2 注射机的校核 24
3.2.1 注射机注射容量校核 24
3.2.2 注射机锁模力校核 25
3.2.3 注射机注射压力校核 25
3.2.4 注射机模具厚度校核 25
3.2.5 注射机最大开模行程校核 26
第四章 成型零件设计 27
4.1 确定分型面 27
4.2 浇注系统形式与浇口设计 27
4.2.1 主、分流道设计 27
4.2.2 浇口及冷料穴设计 28
4.3 凹、凸模成型零件的设计 30
4.3.1 建立分型面 30
4.3.2 制作浇注系统 31
4.3.3 生成成型零件以及浇注件 31
4.4 冷却系统设计 32
4.4.1 凹模冷却系统设计 32
4.4.2 凸模冷却系统设计 33
第五章 模具零件设计 35
5.1 推出系统设计 35
5.2 确定模架 35
5.3 模架各装配零件设计 36
5.3.1 导向零件设计 36
5.3.2 浇注系统零件设计 37
5.3.3 推出机构零件 38
5.3.4 定位和支撑零件 39
5.3.5 其他零件 40
第六章 模具的装配与调试 42
6.1 模具的装配 42
6.2 模具的调试 45
结束语 51
参考文献 52
文献综述与毕业实习报告 53
文献综述 53
毕业实习报告 54
附录一 相关图纸 55
附录二 相关英文资料翻译 60
摘要
近年来CAD/CAM技术已发展成为一项比较成熟的共性技术，模具CAD/CAM技术的硬件与软件价格已降低到中小企业普遍可以接受的程度，塑料制件及模具的3D设计与成型过程的3D分析正在塑料模具工业中发挥越来越重要的作用。
在这次毕业设计中，在进行了简单的市场分析和现有产品的了解后，通过运用三维实体造型软件pro/engineer 2001对机箱前盖进行了3D造型，主要完成工作有机箱前盖装配体各个零件的设计，装配体上各零件的细化设计，同时还生成了前盖箱体的塑料注射模具的成型零件，并且设计了浇注系统、冷却系统、模具模架等零件，最后进行了整个模具的装配，生成爆炸图。此外，还就塑件的缺陷及其消除措施进行了简单的探讨。
设计过程中，重点突出了造型设计，成型零件设计，模架设计三个重要工作，在其中造型分模中遇到一定的困难，但是通过努力最终得以解决。
这次设计是对塑件及模具CAD/CAM的一次大胆尝试，相信对实际生产会有一定的指导意义。
关键词：塑料注射模具 热塑性塑料 注射机 ABS Pro/engineer
Abstract
CAD/CAM technology has already been developed into one ripe generality technology in recent years, the price of hardware and software of CAD/CAM technology of mould has already been reduced to the general degree that can be accepted of small and medium-sized enterprises, 3D design of Plastics piece make and mould and 3D analyse of molding process plays a more and more important role in plastics mould industry.
In the graduation project, through using 3D entity sculpting software pro/engineer 2001,I build the 3D model of computer’s case, mostly of the work completed are as follows : design of parts in the assembly, also build the 3D model of the plastics injection moulding parts at the same time. Besides ,I have designed the poor system、cooling system and the mould frame.In addition I also have a simple discussion on the molding defect of plastics pieces and dispel measure.
During the design,most of the time were spent on design of case part、design of molding part and the design of the mould frame. Unavoidable I met some difficulties in the design,but I have conquered them with my assiduity.
The design is an adventruous try on the CAD/CAM technology of plastics pieces and mould,and I believed that it can have certain directive significance on actual production.
Keywords： plasctics injection moulding； thermoplastic injection machine； acrylonitritle-butadiene-styrene copolymer； pro/engineer
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