模具专业毕业论文--计算机显示卡支架的级进模设计

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1、 I 摘摘 要要 本文是关于计算机显示卡支架的级进模设计，由于难以一次加工完成，故用级 进模生产，可以完成所需的复杂过程-冲孔和弯曲。制件的材料是 LY12M 铝。生产 30 万件。 此次级进模结构设计，完成的是对计算机显示卡固定板的冲裁、弯曲的复合工 艺。本文首先对零件图及成型工艺进行了分析，并着重对排样方法进行了论证后合 理的优选出排样方法。达到了提高利用率，降低生产成本和提高生产效率。 在经过了压力中心计算后改善了排样方法，并确定了模具的基本结构，简化模 具结构、降低制造成本、提高生产效率。详细的描述了各个零件的设计与强度校核、 工作部分的计算及标准件的选择过程。在对整套模具进行了经济性

2、分析之后，对本 次设计进行了总结。 本文建立了模具数字化三维模型，编制了一个典型件的工艺文件。 关键词：显示卡支架；成型工艺；级进模；经济性分析 II Abstract This desighn is about the Stent of Computer Graphics.Its hard to process and has difficulty to punch once.The multi-station progressive die assumped in this paper can finish the complex processblanking and bending.

3、The material of products is LY12M aluminum.The output is 300,000 Pieces. At this time designed of progressive die complet rushing to cut and curving compound technology of The Stent of Computer Graphics. This paper first analyses for part drawing and Bending technology, after expounding and proving

4、emphatically for queuing up shape method, it is reasonable and good to choose row shape method, the location of the gate and the knockout way, reduces the production costs and increases the production efficiency. . After having passed pressure central calculation, have improved row shape method , and have determined the basic structure of mould. Described detailed course of selecting of every standard component that has been designed and calculation. Summarized after having carried out econo