冲压模具毕业设计-弯板支架冲孔落料弯曲级进模设计.doc

洛阳理工学院毕业设计(论文) PAGE II PAGE 18 NUMPAGES 55 PAGE I 弯板支架冲孔弯曲模设计 摘 要 本文介绍的是弯板支架冲孔弯曲级进模，该模具实例结构简单实用，使用方便可靠。首先根据工件图算工件的展开尺寸，再根据展开尺寸算该零件的压力中心，材料利用率，画排样图；其次依据凸、凹模不同的制造方法和冲裁工艺方案计算出凸、凹模的刃口尺寸；计算冲压力，选择冲压设备；根据零件的几何形状要求和尺寸的分析，进行凸、凹模结构设计,最后总体设计。当所有的参数计算完后，对模具的装配方案，对主要零件的设计和装配要求技术要求都进行分析。在设计过程中除了设计说明书外，还包括模具的装配图，非标准零件的零件图。 关键词：弯曲；级进模 ；冲压 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 前 言...……….……….……………………………………………………………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………………………………………8 4.2.1 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…………………………………………