侧弯支架冷冲压工艺及级进模设计.doc

毕业设计说明书论文 QQ原创通过答辩 毕业设计说明书论文 QQ原创通过答辩 基于DCT的JPEG基本系统的MATLAB实现 摘 要 金属板料冲压是一种在工业生产中应用广泛的加工方法。随着现代各行各业突飞猛进的发展，金属件的结构复杂，精度高，需求量多，加上对生产的安全性、操作的方便性，加工的经济性等要求也日益提高，采用单工位模具已经无法满足生产的需要，许多制造商均采用多工位级进模进行生产。因此，多工位级进模在国内外模具制造业中应用日趋广泛。多工位级进模是在普通级进模的基础上发展起来的一种模具，是当代所有模具中冲压功能最多、结构最复杂、生产效率和自动化程度最高的一种冲模。在多工位级进模结构设计过程中，首先必须设计级进模的总装结构，然后再在此基础上进行模具其他零部件的设计。本模具采用切废料方式进行冲裁，故模具结构采用冲孔、导正、弯曲、落料的工序设计，排样采用单排横排排列。本论文分析了侧弯支架的冲压工艺性，介绍了侧弯支架多工位级进模总体结构设计，对工件进行了展开计算，确定了工件加工成型的工艺方案和排样方案，对模具进行了工艺计算，根据计算结果进行了凸模、凹模、垫板、导料板、卸料板、镶块等主要零部件的设计，还根据各标准对模具中用到的其他标准件，如模架、导柱导套等，进行了选择与设计。实践证明：该模具结构合理、可靠，并能保证产品质量，对此类零件的级进模设计有参考价值。 关键词：侧弯支架；冲压工艺；排样；连续模 Abstract Sheet metal stamping is a widely used method in industrial production.With the rapid development of modern businesses，the structure of the metal pieces becomes more and more complex. The metal pieces also need to have high accuracy. At the same time, the demands of the production security, the ease of operation, the economy of processing are increasing. Single-stage molds can’t meet the the needs of production. Many manufacturers use the multi-position progressive die in production. Therefore, Multi-position Progressive Dies are used increasingly widespread in the die manufacturing at home and abroad.Multi-position Progressive Die is developed basing on the general progressive die. It has the most pressing function, the most complex structure, productivity and the highest degree of automation. In the design of the multi-position progressive die, we must design the assembly structure of the progressive die. And then, we design other components of it.This mold adopts the blanking, cutting waste way so the mould structure is punch, guide, bending, blanking process design, layout using single side-by-side arrangement. In this page, I analyzed the stamping process of a scoliosis bracket, as well as design of the verall structure. I also did the calculation of the workpiece, determined the workpiece’s forming process and the nesting program and di