摘 要

本文设计的内容是一个降声器盖，材料为08钢，厚度为1.2mm，中等批量。首先对该零件进行制造工艺分析，确定使用冲压工艺进行生产。然后提出三套生产方案进行筛选，综合考虑成本、加工复杂度、产品质量等因素选择其中的一套方案，包括落料、多次拉深、冲孔、翻边、切边和切槽等工序。接着对选择的加工方案进行工艺参数计算，包括毛坯尺寸的计算、工艺过程的计算和排样的计算。随后根据计算出的工艺参数进行冲压模具的设计，包括工作部分（凸模、凹模、凸凹模）和结构部分（固定板、模板等）。最后根据设计好的模具进行冲压力的计算和压力机的选择。

关键词：冲压；模具；降声器盖

ABSTRACT

The design of this paper is a sound reducer cover, the material is 08 steel, the thickness is 1.2mm, medium batch. First of all, the manufacturing process analysis of the parts, determine the use of stamping process for production. And then put forward three sets of production plan were screened, considering the choice cost, processing complexity, product quality and other factors of a set of solutions, including blanking, drawing, punching, flanging, repeatedly trimming and cutting processes. Then, the processing parameters are calculated, including the calculation of blank size, the calculation of process and the calculation of layout. Subsequently, the stamping die design is carried out according to the calculated technological parameters, including work parts (punch, die, punch-die) and structural parts (fixed plates, templates, etc.). Finally, according to the designed die, the punching pressure is calculated and the press is chosen.

Key Words：stamping；mould；sound reduction cover

目 录

第1章 绪论··························································1

第2章 冲压工艺分析··················································1

第3章 工艺方案确定··················································1

第4章 工艺参数计算··················································2

4.1内圆翻边·······················································2

4.2外圆翻边·······················································3

4.3拉深···························································3

4.4排样···························································4

第5章 模具设计······················································5

5.1落料首次拉深模·················································5

5.2二次拉深模·····················································7

5.3三次拉深模·····················································9

5.4冲孔模·························································9

5.5内圆翻边模····················································10

5.6切边翻边模····················································10

第6章 冲压力计算及压力机选择·······································13

6.1落料首次拉深模················································13

6.2二次拉深模····················································14

6.3三次拉深模····················································15

6.4冲孔模························································15

6.5内圆翻边模····················································15

6.6切边翻边模····················································16

总结································································17

参考文献····························································17

致谢································································18

第1章 绪论