显卡固定板零件的冲压模具设计.docVIP

摘 要 本文介绍的模具实例结构简单实用，使用方便可靠， Abstract This article introduced mold example structure simple and practical, convenient and reliable use, according to the dimension of workpiece is the workpiece, in the center of pressure parts according to the size, material utilization ratio, drawing layout. According to the analysis of the geometric shape and size requirements, using progressive die stamping, which helps to improve the efficiency of production, mold design and manufacturing are also relative to the simple. When all of the parameter calculation is finished, assembly scheme to the tool, the main parts of the design and assembly requirements of the technical requirements are analyzed. In the design process, in addition to the design specifications, but also including the mold assembly drawing, non-standard parts drawings, the workpiece card processing technology, process cards, process cards non standard parts. Keyword :progressive die; punching press;design 目 录 1 绪论……………………………………………………………………………….1 2 冲裁件的工艺设计………………………………………………………….1 3 确定工艺方案及模具的结构形式……………………………………………….2 4 模具设计工艺计算………………………………………………………………..3…………………………………………………………...…..3 4.2 排样、计算条料宽度及距的确定……………………………………….......5 4.2.1 搭边值的确定…………………………………………………… …….5 4.2.2 条料宽度的确定……………………………………………….............. 4.2.3 到料板间距的确定……………………………………………………..7 4.2.4 排样……………………………………………………………………..8 4.2.5 材料利用率的计算……………………………………………………..8 5 冲裁力的计算……………………………………………………………………10 5.1 计算冲裁力的公式………………………………………………………….10 5.2 总的冲裁力、卸料力、推件力、顶件力、弯曲力和总的冲力……….11 5.2.1 总的冲裁力……………………………………………………………11 5.2.2 卸料力FQ的计算……………………………………………………..12 5.2.3 推料力FQ1的计算……………………………………………………12 5.2.4 顶件力FQ2的计算………………………………………………….....12 5.2.5 弯曲力FC的计算……………………………………………………...1 5.2.6 总冲压力的计算……………………............................................. ..14 6 模具压力中心与计算............................................................................................17 冲裁间隙的确定…………………………………………………………………18 刃口尺寸的计算