【毕业论文】EGR座体（E1060001232）零件的模具及工艺工装设计.docxVIP

本科生毕业设计（论文） PAGE \* MERGEFORMAT - 39 - 本科生毕业设计（论文） PAGE \* MERGEFORMAT I 摘要 随着国民经济的发展，机械制造业作为第二产业的支柱产业，在近些年也得到了空前的发展。不论是铸造，机加工，热处理，电化学等诸多方面的技术都有了质的提高与飞跃。一些大型工厂为了节约成本，采取了集铸造，加工，销售，服务为一体的商业理念，这也使得我国的机械制造业在国际市场有了长足发展。 本人要涉及的EGR座体（E1060001232）为小型内燃机的一部分，其特点是尺寸较大，整体结构较为规整，但细部特征较为复杂，上部分的圆柱筒有回转类零件的特征，下部分的座体有箱体类零件的特点。并且不加工的表面其精度要求也比较高。正因如此，我选择用熔模铸造的方法来加工零件毛坯。对于机加工部分，由于该零件的加工部位比较集中，所以我大量应用了数控加工中心。并且辅助以数控车床和数控铣床。 按照任务书的要求，本人完成了： EGR座体（E1060001232）的三维模型的创建，之后又完成了模具的设计，其中包括零件分型面、滑块、型芯的设计，并且正确选取了制作模型的材料及浇注方法。在此基础上，本人又完成了机械加工工艺过程综合卡片，确定机床类型，切削用量，等基本参数，绘制了相关的二维工作图。随后本人又完成了对零件加工所需的夹具的设计，及相关数据的计算。最后我还按要求完成了装夹机构的运动动画。 关键词：熔模铸造、模具、加工工艺、卡具 Abstract In recent years ，with the development of national economy the machinery manufacturing industry as pillar industry of the second industry has also been an unprecedented development. Whether casting, machining, heat treatment, electrochemical and many other aspects of the technology has been a qualitative improvement and leap. Some large factories in order to save costs take the integrated steps of commercial concept to take the casting, processing, sales and service unified. This makes Chinas machinery manufacturing industry has made considerable progress in the international market. I would like to involve the EGR seat body (E1060001232) as part of a small internal combustion engine, which is characterized by large size, the overall structure is more regular, but the details are more complex features, on the part of the cylinder has the characteristics of rotational parts, the lower part of the Block physical characteristics of a box-type parts. And the no processing surfaces were also has a highly quality. For this reason, I chose to use the investment casting method to make the parts blank. For machining parts, because the parts processing was more concentrated, so I applied a lot of CNC mac