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摘要根据抽签，我的毕业设计是离合器内U型连接件冲压模设计，这是一个冲裁+弯曲的零件。当我刚拿到这个零件图的时候，第一个反应是：应该用级进模来做，简单快捷，方便，第一个工步为冲孔，第二个工步为落料，第三个工步为弯曲。然后再配一些辅助设施，一副简单的级进模就完成了，而当我真正开始执行我的计划时，发现问题来了，其他的地方都没有什么大的问题，焦点主要是在落料与弯曲这两个工步上面，当第一个工步冲孔完成之后，第二个工步为落料，问题在于当我完成落料这个工步之后，按照计划零件就直接落下去了，根本就进不了弯曲这个工步。我当时一时间没有想出这个的解决方案，于是设计级进模的想法就作废了，只能另辟蹊径。46110
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最终我确定了两个方案:一，设计三副模具，一副冲孔单工序模，一副落料单工序模，一副弯曲模;二一副冲孔落料复合模，一副弯曲单工序模，第一种方案总共要设计三副模具，工作量大，且工作效率极低，所以被我否决，最终我采用第二种方案：一副落料冲孔复合模，一副弯曲单工序模。
在这篇论文中，我主要是分为五个模块弯：零件的工艺分析与结构分析，曲模的结构设计与工艺设计，落料冲孔复合模的结构设计与工艺设计。零件图与装配图的绘制，以及两副模具的压力机选择。在这里面我把几乎所有的内容都囊括了进去，从排样图的计算到工称压力的计算，然后就是模具的主要零部件的结构计算。
毕业论文关键词：复合模 级进模 弯曲模
ABSTRACT
According to the draw, my graduation design is the clutch inner U connection parts stamping die design, which is a punching + bending parts.
When I got the part drawing, the first reaction is: should use the progressive die to do simple, fast, convenient, the first step is the second step for punching, blanking, bending the third step. Then with some auxiliary facilities, a simple progressive die is complete, but when I really started to execute my plan, to find the problem, other places are not what the big problem is the main focus in the blanking and bending of the two steps above, after the first step punching, second step blanking problem in when I finished the blanking step according to the plan, parts directly fall down, simply can not enter the bending step. I was a time not come up with a solution to this, so the design of progressive die for the idea of the void, only another way.
Finally, I determine the two schemes: a three sets of mould design, a pair of piercing single process mode, a pair of blanking single process mode, a pair of bending die; 21 side punching down the material composite modulus, a pair of bending single process mode, the first scheme total three sets of mould design, heavy workload and work efficiency is very low, so be my veto. Finally, I use the second scheme: a pair of blanking punch compound die, a pair of bending single process mode.
In this thesis, I mainly is pided into five modules bending: parts of the process analysis and structure analysis, curve model of structure design and process design, fall of blanking punch compound die structure design and process design. In part and assembly drawing plotting, and two pairs of mold press selection. In which I put almost all of the contents are included into, from row layout calculation to workers said the pressure calculation, and then is the structure of the mold of the main components calculation.
Keywords: compound die progressive die bending die
目 录
第一章 零件的工艺分析 1
1.1零件的形状分析 1
1.2零件的材料分析 1
第二章 冲裁方案的确定与规划 2
2.1冲裁方案的确定 2