论文总字数：25853字

摘 要

在目前激烈的市场竞争中，产品投入市场的迟早往往是成败的关键。模具是高质量、高效率的产品生产工具，模具开发周期占整个产品开发周期的主要部分。因此客户对模具开发周期要求越来越短，不少客户把模具的交货期放在第一位置，然后才是质量和价格。因此，如何在保证质量、控制成本的前提下加工模具是值得认真考虑的问题。模具加工工艺是一项先进的制造工艺，已成为重要发展方向，在航空航天、汽车、机械等各行业得到越来越广泛的应用。模具加工技术，可以提高制造业的综合效益和竞争力。研究和建立模具工艺数据库，为生产企业提供迫切需要的高速切削加工数据，对推广告诉切削加工技术具有非常重要的意义。本文的主要目标就是构建一个冲压模具工艺过程，将模具制造企业在实际生产中结合刀具、工件、机床与企业自身的实际情况积累的高速切削加工实例、工艺参数和经验等数据有选择地存储到高速切削数据库中，不但可以节省大量的人力、物力、财力，而且可以指导高速加工生产实践，达到提高加工效率，降低刀具费用，获得更高的经济效益。

关键词：冲压 冲模 分离工序 复合—级进 冲裁件精度

Abstract

In the current fierce market competition, the product to market sooner or later is often the key to the success or failure.Mould is a product of high quality, high efficiency production tool, mold development cycle of the main part of the product development cycle.So the customer requirements for mold development cycle shorter, many customers put the mould delivery date in the first place, and then the quality and price.Therefore, how to ensure the quality, control the cost under the premise of processing mould is a problem worthy of serious consideration.Mold processing technology is an advanced manufacturing technology, has become an important development direction, in the aerospace, automotive, machinery and other industries widely used.Mold processing technology, can improve the comprehensive benefit and competitiveness of manufacturing industry.Research and establish mold process database, provide production enterprises urgently need to high speed cutting processing data, to promote tell machining technology has very important significance.In this paper, the main goal is to build a stamping die processing, mold manufacturing enterprises in the actual production combined cutting tool, workpiece and machine tool with the actual situation of enterprise itself accumulation of high speed cutting process instance, process parameters and experience high speed cutting database selectively to store data, not only can save a lot of manpower and material resources, financial resources, and can guide the high speed machining production practice, to improve processing efficiency, reduce the tooling cost and obtain higher economic benefits.

Keywords: stamping, punching, separation process, composite, progressive, precision blanking pieces

目 录

摘 要........................................................................... I

Abstract(英文摘要)....................................................II

目 录...........................................................................IV

第一章 引言...............................................................1

1.1课题的来源和目的..................................................1

1.2冲压与冲模的含义..................................................1

1.3冲压成形的应用......................................................2

1.4冲压技术现状及发展方向......................................3

1.5冲压工序及模具......................................................8

1.6复合模和级进模的概念..........................................9

第二章　设计目的和要求.........................................11

2.1设计题目................................................................11

2.2设计要求................................................................11

第三章　零件的工艺分析........................................12

3.1零件的工艺分析....................................................13

3.2冲压工艺方案及排样方式的确定........................13

第四章　冲孔落料复合模具总体结构尺寸............16

4.1模具类型...............................................................16

4.2导向方式的选择...................................................16

4.3卸料、推件方式的选择.......................................17

第五章 　冲孔落料复合模具工艺与设计计算.......18

5.1排样方式的确定及其计算...................................18

5.2冲压力的计算.......................................................19

5.3压力中心的确定及相关计算...............................20

5.4凸凹模刃口尺寸及公差.......................................21

5.4.1凸凹模刃口尺寸计算原则............................21

5.4.2凸凹模刃口尺寸计算方法............................21

5.4.3凸凹模刃口尺寸计算....................................27

第六章 冲孔落料复合模主要零部件设计与计算.30

6.1各主要零件的结构设计.......................................30

6.2计算各主要零件的尺寸.......................................31

6.2.1模具零件设计................................................31

6.2.2模架的尺寸和结构形式................................35

6.3模具零件选材.......................................................35

第七章 弯曲模的设计..............................................37

7.1弯曲件的工艺性..................................................37

7.2模具结构方案的确定..........................................37

7.3弯曲回弹..............................................................38

7.4最小弯曲半径的确定..........................................38

7.5弯曲时凸模与凹模的间隙..................................39

7.6弯曲力的计算......................................................39

7.7弯曲模工作部分尺寸的计算..............................40

7.8模具总体尺寸设计..............................................40

7.9顶出机构..............................................................40

7.10模架的选择及有关尺寸....................................41

参考文献....................................................................43

第一章 引言

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