“阀支架”冲压工艺及模具设计.doc

“阀支架”冲压工艺及模具设计（本科毕业论文设计）

摘    要

冷冲压是一种先进的金属加工方法，它是建立在金属塑性变形的基础上，利用模具和冲压设备对板料金属进行压力加工，以获得满足一定形状和尺寸要求的零件。冲压加工方法与其它方法相比，具有生产效率高、加工成本低、材料利用率高、产品尺寸精度稳定、操作简单、易实现机械化与自动化等优点，特别适用于产品的大批量生产。随着国民经济的快速发展，冲压加工在制造业中的应用越来越广泛，冲压工艺和冲压模具设计与制造技术也得以快速地发展。[1]
本设计重点对“阀支架”进行了冲压可行性分析和相应的工艺计算，并根据零件的特点经过综合分析和比较得到最佳的冷冲压工艺方案，并在此基础上详细地讲述了拉深胀形复合模的设计过程，并用三维软件UG对主要工作部分零件进行建模。此外，还讲述了冲孔模具的设计过程并简单介绍了模具制造工艺。

关键词： 阀支架，冲压工艺，冲压模具，拉深胀形复合模

ABSTRACT

Cold stamping is a kind of advanced metal processing method , it is based on the plastic deformation of metals , by using stamping dies and stamping equipments , the sheet metal is deformed and so an element of certain shape and dimension is obtained . Compared with other processing methods , stamping has its own advantages , eg: the production efficiency is high , the cost is low , the overall material utilization factor is high , the product size is stabilized , the operation is simple and the realization of mechanization and automation is easy . So stamping is very suitable for production of large quantity . Along with the fast development of national economy , the application of stamping in manufacturing industry is more and more extensive , and the stamping technology and die design and production technology also have fast development .
The text bellow has narrated the stamping feasibility and the technology calculation for “kickstand of valve” , and according to the characteristics of the element , we have got the best stamping scheme by intergration analysis and comparison . Then on the foundation of this scheme , we have narrated in detail the design course of the matrix , and designed the main working parts by three-dimensional solid modeling of UG . Besides , we have also narrated in detail the workmanship of the matrix .

Key words：Kickstand of valve , Stamping technology ，Stamping die ,  Compound die of  bulging and drawing

目   录

中文摘要 Ⅰ
ABSTRACT Ⅱ
1绪论 …………………………………………………………………...1
1.1 前言…………………………………………………………………………………………1
1.2 板料成形工艺与模具设计及其研究状况…………………………………………………2
1.2.1 基于经验的设计………………………………………………………………………2
1.2.2 基于CAD的设计………………………………………………………………………2
1.2.3 基于智能的设计………………………………………………………………………3
1.2.4 基于有限元的设计……………………………………………………………………3
1.2.5 基于快速成形的设计…………………………………………………………………4
2 阀支架冲压可行性分析……………………………………………….5
3 阀支架冲压工艺设计………………………………………………….7 
3.1 毛坯尺寸的展开计算……………………………………………………………………...7
3.2工序组合和方案分析………………………………………………………………………7
3.3各工序冲压工艺计算………………………………………………………………………7
3.3.1拉深胀形工艺计算…………………………………………………………………….7
3.3.2冲孔工艺计算………………………………………………………………………….8
3.3.3翻边工艺计算………………………………………………………………………….9
3.3.4切边工艺计算………………………………………………………………………….9
3.3.5成形翻边工艺计算…………………………………………………………………….9
3.4冲压工艺卡的制定………………………………………………………………………...10
4.阀支架模具设计………………………………………………………..12
4.1拉深胀形复合模模具结构设计……………………………………………………………12
4.1.1模架……………………………………………………………………………………..12
4.1.2导柱和导套……………………………………………………………………………..12
4.1.3模柄……………………………………………………………………………………..14
4.1.4出件方式…………………………………………………………………………………14
4.1.5模具装配图………………………………………………………………………………15
4.1.6模具工作过程……………………………………………………………………………15
4.1.7装模高度的校核…………………………………………………………………………15
4.2复合模主要模具零件设计……………………………………………………………………16
4.3冲孔模模具结构设计…………………………………………………………………………19
4.3.1模具装配图………………………………………………………………………………20
4.3.2模具工作过程……………………………………………………………………………20
4.4冲孔模主要模具零件设计……………………………………………………………………20
5.模具零件的三维建模…………………………………………………...23
6.模具制造工艺…………………………………………………………...25
6.1模具制造的主要特点……………………………………………………………………….25
6.2模具制造的基本要求………………………………………………………………………25.
6.3 模具制造工艺流程…………………………………………………………………………26
结束语……………………………………………………………………29
答谢词……………………………………………………………………30
参考文献 …………………………………………………………. …….31