1、 1 毕业设计说明书毕业设计说明书 环形底圆筒落料拉伸复合模 系 、 部: 机械工程系 学生姓名: 指导教师: 职称 副教授 专 业: 数控技术 班 级: 完成时间: 2 摘要 复合模是冷冲压模具中加工精度、效率较高的一种设备。对于需经过几道工序才 能冲压完成的零件来说,应尽可能根据零件的工艺要求采用复合模加工。本文就是对 环行底圆筒工件加工时所需的复合模设计。这套模具适合于环行底圆筒的落料、拉深、 成形、修边加工,其后尚有几道加工工序。在对该复合模进行设计时,主要的问题是 对原工序件的底部成形方式的设计,由于要保证原工序件的大致形状精度,在这里采 用局部成形的方法对底部的凸起进行加工。因此,
2、确定合适的压边力就成了起伏成形 能否成功的关健。同时,拉深成形时,成形凸凹模的设计也较重要。为了设计的标准 化,尽可能选用了标准件,如模架,模座,压边机等。最后对模具的一个主要零件导 套进行了简单的加工工艺路线的制定。本设计对于进行起伏成形模具设计有一定的参 考作用。 关键词:模具设计;复合模;压延成形 3 ABSTRACT Compound die is an efficient and precise provision of normal stamp die. For the part can not finished in only one stamp working procedur
3、e,it is better machining on the compound die according to the technical demands of the part. In the thesis, designed a compound mold used to machining the half-finished clutch shell. This set of mold suits in the clutch shell punch central hole, stamp bottom convex shape, and shave fringe, after tha
4、t still had several processing working procedures. When carries on the design of this compound mold, the main question is to confirm the way of stamp the bottom convex figuration. Because it is have to guarantee the fore working procedures approximate shape precise, uses partial-undulate stamp in here to processing the bottom bulge. Therefore, the key role to succeed of the partial-undulate stamp is to define reasonable blank holding force. At