冲压模具毕业设计-弯板支架冲孔落料弯曲级进模毕业设计.docVIP

弯板支架冲孔弯曲模设计 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 introduces is the angle iron support punch holes bending concatenation-mould membrane. This mold example structure is simple. The easy to operate is reliable. First launches the size according to the work piece graphic calculation work piece. Again acts according to launches the size to calculate this components the center of pressure. Material use factor, flowered row of specimen map; Next basis convex-concave mold different manufacture method and the blanking craft plan calculates the convex-concave cutting edge size,computation ramming strength,choice ramming equipment. According to components geometry shape request and size analysis, carries on the convex-concave mold structural design; finally system design. After all parameters calculate, to mold assembly plan, carry on the analysis to the major parts design and the matching requirement. In design process besides design instruction booklet, also includes the mold the assembly drawing,non-standard letter detail drawing. Keywords: bending, concatenation-mould, pressing 目 录 ……….……….……………………………………………………………1 第一章 冲裁弯曲件的工艺设计…………….………………..………………..3 第二章 确定工艺方案及模具的结构形式……………...……...……………4 第三章 模具总体结构设计…………………...…...……………………………5 第四章 模具设计工艺计算………………...…..……...………………………..6 4.1 计算毛坯尺寸 …………………………………………………………...…..6 4.2 排样、计算条料宽度及距的确定………………………………………....... 排样..……………………………………………………………………8 4.2.2 搭边值的确定………………………………………………………..8 4.2.3 条料宽度的确定…....……………………………………………..…..9 4.2.3 送料步距的确定.…...……………………………………………..…..10 4.2.5 材料利用率的计算………………………………………………….11 第五章 冲裁力的计算……………………..……………………………………12 5.1 计算冲裁力的公式………………………………………………………….1 5.2 总的冲裁力、卸料力、推件力、顶件力、弯曲力和总的冲力……….1 5.2.1 总的冲裁力……………………………………………………………13 5.2.2 卸料力FQ的计算……………………………………………………..1 5.2.3 推料力FQ1的计算……………………………………………………1 5.2.4 顶件力FQ2的计算………………………………………………….....1 5.2.5 弯曲力FC的计算……………………………………………………...1 5.2.6 总冲压力的计算…………………….............