风扇叶片模具设计
摘 要
我国的塑料成型模具设计，制作技术发展比较晚，整体水平还比较低。目前许多生产厂家还处才传统的设计加工水平。随着现代工业的发展，当今产品的开发主要方面就是开发新产品的外形与结构，特别是由各种自由曲线，曲面组成的流体外形，以及复杂组合式的型芯。传统的模具制造已经无法满足要求，而是用全新的基于特征的参数化造型方法概念pro E软件。本次设计的风扇叶片主要由软件造型设计，再进行分模，得出模具型芯。这样极大的提高工厂生产效率。
关键词：模具；自由曲线；pro E；风扇叶片；分模
The Design of Fan Lamina
Machine Design &Manufacturing and Automation
Designer: Fu Xiongbo instructor: Zhu Qiuling
Abstract
In our country, the development of the technology of the plastic shaping mold designing started from a late time and the overall standard of it remains low. Currently, the development of the designing and processing technology of many manufacturers remain at a traditional level. With the development of modern industry, the main product development aspect is to develop the appearance and structure of the new products, especially those streamlined appearances made up of by various free curves and curved surface as well as those with complicated and sectional type core. the traditional mold manufacturing has failed to meet the demand , it is the newly written PROE software based on the concept of parameter model method that will make it .the fan lobe designing consists of software mold designing ,die separation then obtaining type core, which greatly improve the productivity of the factory.
Key words: die; free curves ； pro E; fan limina ; seprate die
目录
前言
绪论-----------------------------------------------------1
1 制品成型工艺分析---------------------------------3
1.1 结构分析----------------------------------------3
1.2成型工艺-----------------------------------------3
1.3塑件的壁厚--------------------------------------3
1.4加强筋--------------------------------------------4
1.5热塑性塑料聚碳酸酯的注射成型过程-----4
1.6聚碳酸酯的主要性能--------------------------5
1.7聚碳酸酯成型的风扇可能存在的问题-----6
2 模具的结构------------------------------------------8
2.1 确定型腔数量及其排列方式----------------8
2.2 分型面位置的确定----------------------------8
3 注射机型号的确定---------------------------------9
3.1 注射机型号的确定----------------------------9
3.2注射机的选择-----------------------------------9
3.3注射机的校核-----------------------------------9
4 模具分型面的确定---------------------------------11
5 浇注系统形式和浇口的设计---------------------13
5.1主流道的设计-----------------------------------13
5.2主流道衬套的固定-----------------------------14
5.3冷料穴的设计-----------------------------------15
5.4分流到的设计-----------------------------------16
5.5浇口的设计--------------------------------------18
5.6浇口的系统平衡--------------------------------23
5.7普通浇注系统的截面计算与校核-----------23
5.8排起系统的设计--------------------------------23
6 模架及其一些标准件的选择---------------------24
6.1 定模座板-----------------------------------------24
6.2 流到推板-----------------------------------------24
6.3 定模固定板--------------------------------------25
6.4 垫块-----------------------------------------------25
6.5 动模座板-----------------------------------------25
7 导向机构的设计-------------------------------------26
7.1导柱的设计---------------------------------------26
7.2 导套的设计--------------------------------------27
8 脱模机构的设计-------------------------------------28
8.1制品的推出形式---------------------------------28
8.2塑件的推出机构---------------------------------28
8.3脱模力的计算------------------------------------28
8.4 简单的脱模机构--------------------------------31
8.5 复位杆--------------------------------------------32
9 成型零件的设计与加工工艺--------------------- 33
9.1定模部分的结构设计--------------------------33
9.2小型芯的结构设计-----------------------------34
9.3小型芯的尺寸计算-----------------------------35
9.4小型芯的加工工艺-----------------------------35
9.5小型芯的车削数控加工程序-----------------36
9.6中间圆柱型芯的加工工艺--------------------36
9.7 型芯壁厚和底板厚度的计算----------------38
9.8注射模具成型零件的选材-------------39
10风扇模具的温度调节系统的设计---------------40
10.1冷却系统的设计-------------------------------40
10.2冷却时间的确定-------------------------------40
10.3冷却系统设计的原则-------------------------41
10.4冷却系统的主要结构零件-------------------41
10.5冷却系统的分析-------------------------------41
10.6冷却系统的简单计算-------------------------44
11风扇模具的开模及其工作过程------------------46
结论-------------------------------------------------------46
参考文献-------------------------------------------------47
心得体会-------------------------------------------------48
致谢词----------------------------------------------------49
附录-------------------------------------------------------50
