金属压圈冲压模毕业论文试卷.docVIP

冯春风 金属压圈冲压模设计  PAGE - 2 -  PAGE - 25 - 毕 业 设 计金属压圈设计 摘要 本设计为金属压圈设计。主要包括以下内容：分析冲压工艺性；确定排样方案；设计模具结构；计算冲压力的大小，选择压力机型号；计算压力中心；凸模、凹模和凸凹模的刃口尺寸的计算；设计模具的零件等。 该产品在材料、结构、尺寸精度上都满足冲压工艺性要求；模具类型选择级进模生产；定位零件选择固定挡料销；送料方式为自动送料；卸料方式为弹性卸料；产品厚度t=2.0mm；排样方式为对排，材料利用率为52.75%；压力中心为（9.77,0）；该零件的冲压力为110.92KN；压力机为J23-40。 在设计过程中遇到一些问题，如卡在拉深凸模上的冲压件卸料问题，如果选择一般的顶件装置，会影响冲孔废料的排出，所以在本模具中，设计一个有橡胶和顶件块组成的顶件装置，类似于弹压式卸料装置，这样既不影响冲孔废料的排出，又可以把卡在拉深凸模上的拉深件顶出。本设计从实际出发，服务企业生产，设计严谨，所设计模具结构简单、易制造、寿命高，可为类似产品模具设计提高参考，促进此类型产品发展，使该类型模具不断发展和完善。 关键词：金属压圈；冲压；级进；排样；工艺设计 Metal compression ring with design Abstract The design of the metal compression ring design. This design mainly includes the following content: stamping process analysis; determine the layout scheme; die structure design; the impact pressure is calculated, choose the type of press; pressure center calculation; calculation of the size of the convex and concave die and punch cutting edge; mold design of the parts. The product in the materials, structure, size precision can meet the requirement of stamping process; mold type selection of progressive die production; selection of fixed block material pin positioning parts; feeding mode of automatic feeding; unloading elastic unloading; thickness of the products t=2.0mm; row patterns of row material utilization 52.75%; center of pressure（9.77,0）; part of the ram pressure of the 110.92KN; press for j23-40. In the design process encountered some problems, such as card in drawing punch stamping parts discharge problem, if the choice of ejecting devices will influence the punching waste discharge, so in the mold, design a rubber and the top piece is composed of a top device, similar to dragoon type unloading device, which does not affect the punching waste discharge, the drawing in the drawing punch card ejection. This design from reality, service enterprises production, rigorous design, the design of mold has the advantages of simple structure, easy manufacture, high life, for the die design of similar