多孔盖板零件冲孔模设计 大学论文.doc

本科毕业设计（论文） 多孔盖板零件冲孔模设计 系 部： 专 业： 班 级： 学 号： 学生姓名：＿＿ ＿ 指导教师：＿＿＿ ＿＿ 20 年 月 日  多孔盖板零件冲孔模设计 摘要 本课题为多孔盖板零件冲孔模设计，待冲零件为有一定深度的盖板件，底部要冲8个孔，故采用垂直冲孔模。根据工件的具体形状，决定用弹簧卸料板卸料，卸料板在冲裁时还起到导向和预压的作用。工件厚度2mm，所需冲裁力不大，因此一次性完成盖板零件的冲孔。模具类型应为单工序的冲裁模。工件尺寸公差未注，选IT14级。工件为小批量生产，为降低成本，除凸模、凸模固定板、弹性卸料板、定位板和凹模自行设计外，其余零件均选用标准件。零件需要冲直径为4mm和6mm的小孔，冲裁凸模设计成阶梯型来提高凸模的抗弯和抗压性，并进行凸模的强度校核。考虑到模具结构和成本，凹模设计成整体式。本次设计的主要内容：工件工艺分析；冲压工艺方案选定；模具凸凹模刃口尺寸计算；模具模架选用；压力机选用；模具总体结构设计和模具总装图绘制；主要零部件设计和绘制；设计说明书撰写。 关键词：多孔盖板零件,冲孔模,模架,校核 Abstract This topic for porous plate punching mould parts design, to be blunt parts for a certain depth of a cover, and the bottom eight holes, so using vertical punching die. According to the specific shape, decided to use spring stripper plate unloading, in the stripper plate cutting also plays when orientation and the preloading role. The 2 mm thickness, the cutting force is not large, so the completion at cover plate punching parts. Mould types should be run die single process. The dimension tolerance not note, choose IT14 level. Workpiece as small batch production, in order to reduce the cost, in addition to the punch, the punch fixed board, elastic stripper plate, positioning board and concave die design by outside, the rest are chosen standard parts. Parts need to be blunt for 4 mm in diameter and 6 mm holes and the cutting of the punch into a ladder to improve the design of the punch and the bending strength of resistance, and the intensity of the punch. Considering the mould structure and cost, concave die design into integral. The main content of this design: the process analysis; Stamping process program selected; Die and punch mould blade size calculation; Mould formwork choose; Press choose; The structural design and die mold assembly chart drawing; The design of the key parts and draw; The design