摘要低压注塑是基于传统注塑工艺发展起来的一项新技术,主要应用于汽车电子、医疗电子、消费类电子、宇航电子、IT行业等众多领域,具有绝缘、耐温、抗冲击、减振、防潮、防水、防尘、耐化学腐蚀等功效。本文主要针对低压注塑机中胶缸的结构进行优化设计,首先确定了胶缸的总体设计方案,包括胶缸的设计指标、尺寸、材料以及导热栅的数量、尺寸等,利用CAD绘制零件图、装配图,以及Solidworks进行三维建模,然后利用有限元分析方法和ANSYS仿真软件,建立胶缸加热温度场的三维有限元模型,获得胶料温度场分布和各时间点熔胶量。最后通过分析仿真数据,结合实验验证,获得胶缸优化的数据支持,验证了优化的可行性,实现胶料的稳定供应,确定胶缸生产时间,降低生产成本。47997
毕业论文关键词 低压注塑 胶缸 Solidworks ANSYS 数值模拟 温度场 结构优化
毕业设计说明书外文摘要
Title Optimal Design of a Rubber Cylinder in Low Pressure Injection Molding
Abstract
Low pressure molding is a kind of new technology based on the traditional injection molding,which is mainly applied in automotive electronics、medical electronics、consumer electronics、aerospace electronics、IT industry.It has many advantages such as insulation、heat resistance、shock resistance、moistureproof、waterproof、dustproof and chemical resistance,etc.This paper mainly studies the optimal design of a rubber cylinder in low pressure injection molding.First,the general design of a rubber cylinder is determined,including design index、size、material、the quantities and size of the heat conduction grid;according to CAD and Solidworks,the part drawing and the 3D model are obtained.Then,according to ANSYS,the 3D finite element modeling of a rubber cylinder heating temperature field is established, the temperature field of melt adhesive and the melt volume at different time are obtained.Finally,according to the analysis of the simulation data and experiments result,the optimal data of the rubber cylinder is obtained.This optimal design turns out to be feasible,and the stable supply of melt adhesive,the determination of manufacturing time,the cost reduction are realised.
Keywords Low pressure molding Rubber cylinder Solidworks ANSYS Numerical simulation Temperature field Optimal design
目 次
1 引言 1
1.1 本课题目的及意义 1
1.2 国内外发展概况 3
1.3 本课题主要研究内容 3
2 胶缸总体设计方案 5
2.1 设计指标 6
2.2 材料选择 7
2.3 胶缸组成 7
2.4 实体建模 12
3 胶缸仿真计算 14
3.1 ANSYS简介 14
3.2 胶缸温度场分析 14
3.3 ANSYS有限元模型建立 16
3.4 仿真温度变化规律 20
3.5 实测温度变化 25
3.6 寿命计算