摘要：随着人们的生活水平的提高，人们所追求的生活品质日益剧增，汽车作为日常生活的必需品，人们对他的需求越来越大。此外，汽车行业快速发展，新的车型不断涌现，服务于汽车工业的覆盖件模具近年来也得到快速发展；模具工业对经济和社会发展有着重要的推进作用。如今汽车覆盖件模具发展明显；各种高新技术逐渐得到推广，例如参数化模具技术，冲压成型过程的模拟、高速加工、自动化生产、板材冲压成型技术以及产品生命周期管理技术等。目前，国内急需大量汽车覆盖件模具设计人才，同时也对这些人提出较高要求。本文主要通过设计汽车顶盖前横梁内板零件翻边模的设计，分析优化模具设计结构，掌握标准件的使用，了解翻边整形模的设计原则，设计合理的冲压工艺、材料性能选择、软件操作技巧等。通过学习西门子软件有限公司UG软件中汽车模具相关的模块完成本次毕业设计。70586

毕业论文关键词：NX/Die Design；翻边模模具；加强板

Die Design for automobile front cover beam front panel Based on NX

Abstract: Nowadays, people’s living standard is improving day by day and people pursue standard more and more higher .people's pursuit of the quality of life is increasing, the car as a daily necessities, people's growing demand for him. The new models continue to serving the automotive industry in recent years, The die also has been Rapid development. Domestic and foreign automotive panel mold development significantly. Features are a wide range of high-tech applications, including digital mold technology, stamping molding process simulation, high-speed processing, automated production, sheet metal stamping technology and product life cycle management technology. At present, the domestic urgent need for a large number of automotive cover mold design talent, but also on these people put forward higher requirements. This paper mainly through the design of the front cover of the car front cover of the inner part of the design, analysis and optimization of mold design structure, master the use of standard parts to understand the design principles Plastic mold with flange, reasonable stamping process design, material Performance options, Operating skills and so on. Through the study of Siemens Software Co., Ltd. UG software in the car mold-related modules to complete this graduation design.

Key words: Automotive covering parts; Die Design; reinforcing plate

目  录

1  绪论  1

1.1  汽车覆盖件模具1

1.1.1  汽车覆盖件特点 1

1.1.2  汽车覆盖件结构和形状 2

1.1.3  汽车覆盖件的刚性2

1.1.4  汽车覆盖件的工艺性2

1.2  汽车覆盖件模具的发展3

1.2.1  汽车覆盖件的产量不断扩大 4

1.2.2汽车覆盖件技术4

1.2.3  汽车覆盖件的联盟趋于形成 5

1.2.4  汽车覆盖件的标准逐渐统一 5

1.3  汽车覆盖件模具设计5

1.3.1  汽车覆盖件的技术进步较快 6

1.3.2  本课题设计的意义 7

2  产品结构及其工艺性分析 8

2.1  零件的工艺性分析8

2.2  材料的成型性能9

2.3  确定工艺方案9

2.4  确定冲压方向10

2.5  压料板的设计11

3  汽车横梁内板模具设计 12

3.1  翻边模具的结构确定12

3.2  翻边凸模的设计13

3.2.1  翻边凸模的结构设计13

3.2.2  翻边凸模的尺寸设计13

3.2.3  翻边凸模的固定方式14

3.2.4  翻边凸模的选用14

3.3  翻边凹模的设计14

3.3.1  翻边凹模的结构设计14