摘要随着工业发展，冲压模具的应用越来越广泛。同时由于产品更新换代速度的加快，除了要保证模具设计质量以外，对模具设计效率的要求也越来越高。为了促进我国冲压模具技术的发展，从计算机技术、先进加工技术及装备、其它新技术与冲压模具等方面分析了我国冲压模具的技术现状。结果表明：经过几十年的发展，我国的冲压模具总量位居世界第三位，加工技术装备基本已与世界先进水平同步。83320

    本文首先对落料拉深复合模具的特点以及工艺结构进行了简答的分析，并在接下来的内容中对落料拉深复合模具的一些设计方法、设计理念进行了描述，其中对落料拉深模具设计过程中选用的工艺方案以及其他工艺方案的特点和优缺点进行了重点介绍，并分析了各种工艺方案的适用情况和落料拉深复合模具使用方案的特点。本次拉深设计的方案是在落料拉深复合模工序基础上外加两次拉深工序，在设计的过程中，对模具中各个零件的尺寸及其所受的力进行了计算，从而对落料拉深复合模的结构进行了整体的确定。对于另一个冲孔模具，分析了冲孔模具的冲裁力、卸料力等受力情况。通过对冲孔模具设计方案的分析，选用了合理的压力机，同时，对凸凹模刃口进行了计算，也对冲孔模具进行了整体尺寸的确定。本文设计的拉深模具，对于加工口径小但高度较大的拉伸类零件特别适用，通过理论分析和实践探索，以及对工艺过程的设计，可以使一次难以加工成型的拉伸类零件在加工的过程中变的更容易加工，避免了拉深断裂，从而可以保证了质量，降低了成本，提高了生产效率。

毕业论文关键词：落料；拉深；冲孔；模具

Abstract With the development of industry, the application of stamping die is more and more extensive。 At the same time, because of the speed of product updating, in addition to ensure the quality of the mold design, the efficiency of the mold design is also getting higher and higher。 In order to promote the development of stamping die technology in our country, the technology status of stamping dies in our country is analyzed from the aspects of computer technology, advanced processing technology and equipment, other new technology and stamping die and so on。 The results show that, after decades of development, the total amount of stamping dies in China ranks third in the world, and the processing technology and equipment have been basically synchronized with the world advanced level。

Firstly of composite die for blanking, drawing and the characters and process structure were simple analysis, and in the next content drop of composite die for blanking, drawing and some design methods and design idea are described, which of falling material drawing die design process, the selection of the technological scheme and other process characteristics and advantages and disadvantages are emphatically introduced。 And the analysis of the characteristics of the application of all kinds of technical methods and falls the material drawing compound die for the use of the program。 The drawing design scheme is in the fall of applied material drawing compound die process based on two drawing process, in the process of design, to die in various parts of the size and by force were calculated, and of the structure of compound die for blanking, drawing and of determining the overall。 For another die punching die, analysis of punching die blanking force, unloading force, etc。。 Through the analysis of punching die design scheme, choose the reasonable press, at the same time, through the calculation of the punch and die cutting edge also punching mold were to determine the overall size。 In this paper, the design of the drawing die, for the processing of small caliber but high tensile parts particularly applicable, through theoretical analysis and a lot of practice exploration, through the process of design can make a difficult to process the tensile parts in the machining process can be more easily processed, avoid the fracture in deep drawing, which can guarantee the quality, reduce the cost and improve the production efficiency。