摘要：随着工业生产的高速发展，级进模凭借产效率高，生产周期短，以及劳工耗费少的优势，在工业生产中大批量生产。除此之外，介于计算机CAD/CAE/CAM技术在模具行业的发展，对模具的结构进行了优化，进而形成了规范化、典型化、系列化、标准化的模具制造技术。借助西门子PLM Software的NX，本文通过对一汽车引擎垫片进行模具设计，从而对CAD/CAE/CAM技术的运用进行展示。此次设计包括产品的工艺性的分析、排样的设计、凸凹模的设计、模架的设计、导正装置的设计等。该模具通过导正钉定位，导柱导套作为导向，与此同时完成落料、拉深、整形、冲孔、翻边等工序。在最终生成部分零部件的加工二维图。具体地表现了多工位级进模的排样方式和总体结构构思，并对主要部分的设计和计算过程进行了表现。实践证明，该模具结构具有灵活、安全、保证产品质量的优点。在类似零件的多工位级进模设计能提供很多值得参考信息。 71769

毕业论文关键词： 级进模；汽车引擎垫片；模具设计；

 Design of progressive die for automobile engine gasket 

Abstract: With the rapid development of industrial production, the progressive die has mass of production in the industrial production, with high efficiency, short production cycle, as well as the advantages of low labor costs. In addition, the development of computer CAD CAE CAM technology in the mold industry, the structure of the mold has been optimized, and thus the formation of a standardized, typical, serialized, standardized mold manufacturing technology. With the help of Unigraphics NX, this paper presents the design of the die for automobile engine gasket, so as to show the application of CAD/CAE/CAM technology. The design includes the analysis of the process of the product, the design of the layout, the design of the convex and concave die, the design of the mould base, the design of the guide device, etc.. The mold is guided by the positioning of the guide pin guide as a guide, while the completion of blanking, drawing, shaping, punching, flanging and other processes. In the final part of the processing of the two-dimensional drawing. This paper introduces the layout scheme and the overall structure design of multi station progressive die. Practice has proved that the mold structure has the advantages of flexibility, safety and product quality assurance. The design of multi position progressive die for similar parts has a lot of reference value. 

Key words: Progressive Die Wizard；Automobile Engine Gasket；Mold Design；

目  录

1  绪论  1

1.1多工位级进模具技术概述1

1.2  多工位级进模具技术国内外现状与发展趋势1

1.3  选题背景及意义2

1.4  毕业设计所涉及的软件简介3

2  产品结构及工艺性分析4

2.1  零件的工艺性分析4

2.2  零件材料特性5

2.3  模具方案确定5

2.4  排样方案确定6

2.5  冲压工序方案拟定7

3  工艺参数计算 10

3.1  步距、料宽、导尺间距离的确定10

3.2  冲裁模间隙计算11

3.3  材料利用率的确定11

3.4  冲裁力11

3.5  卸料力、顶件力12

3.6  拉深力13

3.7  冲压设备的选择14

4  模具零部件设计 16

4.1  模架的选择与设计16

4.2  冲裁凸凹模设计18

4.2.1  冲孔凸凹模设计 18

4.2.2  冲裁凸凹模设计 19

4.3  导正机构设计20

4.4  限位装置设计21

4.5  顶料机构设计22

4.6  导柱及导套设计23

4.7  零件的材料25