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发布时间 : 星期二 文章座椅座板冲压毕业论文设计说明书更新完毕开始阅读ea9aec3690c69ec3d5bb755f

目 录

摘要................................................................................................................................ 3 1 引言............................................................................................................................ 4

1.1模具行业的发展现状及市场前景 ..................................................................................... 4 1.2 课题来源和研究意义 ........................................................................................................ 5 1.3 国内外在该方向的研究现状及分析 ................................................................................ 6 1.4 冲压工艺分析 .................................................................................................................... 7 1.5 毕业设计的意义与目的 .................................................................................................... 8

2 本课题冲压件的工艺性分析.................................................................................... 9

2.1 冲裁件的结构工艺性 ...................................................................................................... 10

2.1.1 冲裁件的形状 ....................................................................................................... 10 2.1.2 冲裁件的尺寸精度 ............................................................................................. 10

3 制件冲压工艺方案的确定...................................................................................... 11

3.1 冲压工序的组合 .............................................................................................................. 11

4 制件排样图的设计及材料利用率的计算.............................................................. 12

4.1展开尺寸的计算 ............................................................................................................... 12 4.2制件排样图的设计 ........................................................................................................... 13

4.2.1 搭边与料宽 ........................................................................................................... 13 4.3 材料利用率的计算 .......................................................................................................... 15

5 确定总冲压力和选用压力机及计算压力中心...................................................... 16

5.1 落料冲孔模 ...................................................................................................................... 16 5.2 翻边弯曲力的计算 .......................................................................................................... 16 5.3 压弯成型力的计算 .......................................................................................................... 17 5.4 整形力的计算 .................................................................................................................. 18 5.5 压力中心的计算 .............................................................................................................. 18 5.6 压力机的选用 .................................................................................................................. 20

6 凸、凹模刃口尺寸计算.......................................................................................... 21

6.1 翻边,弯曲模 ................................................................................................................ 21 6.2 落料,冲孔凸、凹模刃口尺寸 ...................................................................................... 22

6.2.1 计算原则 ............................................................................................................... 22 6.2.2 凸模和凹模配合加工 ........................................................................................... 24

7 模具整体结构形式设计.......................................................................................... 27

7.1 落料冲孔模结构形式 ...................................................................................................... 27 7.2 翻边压型模的结构形式 .................................................................................................. 27 7.3 压弯压型模的结构形式 .................................................................................................. 28 7.4 模具的动作原理 .............................................................................................................. 28

8 模具零件的结构设计.............................................................................................. 30

8.1 落料冲孔模结构 .............................................................................................................. 30

8.1.1 凸凹模的设计 ....................................................................................................... 30 8.1.2 落料凹模的设计 ................................................................................................... 30 8.2 翻边压型模的结构设计 .................................................................................................. 33

8.2.1 凸凹模的设计 ....................................................................................................... 33 8.2.2 翻边凹模的设计 ................................................................................................... 33 8.3 压弯压型模具结构设计 .................................................................................................. 34

8.3.1 凸模的设计 ........................................................................................................... 34 8.3.2 凹模的设计 ........................................................................................................... 35 8.4 其他零件的设计 .............................................................................................................. 35

9 压力机的校核.......................................................................................................... 36

9.1 压力机的校核 ................................................................................................................ 36

10 模具的总装配........................................................................................................ 37 设计小结...................................................................................................................... 38 致 谢.......................................................................................................................... 39 参考文献...................................................................................................................... 40

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摘 要

随着模具制造的技能化逐步向科学化发展,逐渐由以前手动方式发展为利用软件等高科技方式来辅助设计的完成。冷冲模是其中的一种。

毕业设计是在模具专业理论教学之后进行的实践性教学环节。是对所学知识的一次总检验,是走向工作岗位前的一次实战演习。其目的是,综合运用所学课程的理论和实践知识,设计一副完整的模具训练、培养和提高自己的工作能力。巩固和扩充模具专业课程所学内容,掌握模具设计与制造的方法、步骤和相关技术规范。熟练查阅相关技术资料。掌握模具设计与制造的基本技能,如制件工艺性分析、模具工艺方案论证、工艺计算、加工设备选定、制造工艺、收集和查阅设计资料,绘图及编写设计技术文件等。

冲压工艺与模具设计应结合工厂的设备、人员等实际情况,从零件的质量、生产效率、生产成本、劳动强度、环境的保护以及生产的安全性各个方面综合考虑,选择技术先进、经济合理、使用安全可靠的工艺方案和模具,以使冲压件的生产在保证达到设计图样上的各项技术要求,尽可能降低冲压的工艺成本和保证安全生产。

关键词:

工艺性分析、模具工艺方案论证、工艺计算、加工设备选定、制造工艺、收集和查阅设计资料,绘图及编写设计技术文件等。

summary

With the skill of mold gradually to scientific development, gradually developed from the previous manually using software other high-tech ways to assist the design is complete. Die is one of them.

Graduation is a professional mold after teaching the theory of practical teaching. Is the knowledge of the lump-sum test, go to work before is a practical exercise. Its purpose is the integrated use of the course of study theoretical and practical knowledge to design a complete mold train, develop

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and improve their ability to work. Consolidate and expand mold professional courses to learn content, master mold design and manufacturing methods, procedures and relevant technical specifications. Skilled consult the relevant technical information. Master mold design and manufacture of basic skills, such as parts manufacturability analysis, mold technology demonstration program, process calculation, processing equipment selection, manufacturing processes, and access to design data collection, preparation of design drawings and technical documents.

Stamping process and die design should be combined with factory equipment, personnel, the actual situation, from the part of the quality, productivity, production costs, labor intensity, environmental protection and production safety aspects into account, choose technologically advanced, economical and reasonable, the use of safe and reliable technology solutions and mold to make stamping parts production to meet the design to ensure the technical requirements on the drawing, stamping process to minimize costs and ensure safety in production.

Keywords:

Process analysis, mold technology demonstration program, process calculation, processing equipment selection, manufacturing processes, and access to design data collection, preparation of design drawings and technical documents.

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