机械5

活门的冲压工艺及级进模具设计【带孔长方形垫板冲孔落料冲裁模连续级进模】 摘要：本设计题目为活门件，体现了典型冲裁模的设计要求、内容及方向，有一定的设计意义。通过对该模具的设计，加强了设计者对冲裁模设计基础知识的理解和运用，为设计更复杂的冲裁模具做好了铺垫。本设计运用冲裁工艺及模具设计的基础知识，首先分析了板材的性能要求，为选取模具的类型做好了准备；然后计算了冲裁件的冲裁力，便于选取压力机吨位及确定压力机型号；最后分析了冲裁件的特征，便于确定模具的设计参数、设计要点及卸件装置。本设计采用了冲孔—落料级进模成形活门制件。成形原理可划分为两个阶段：首先冲孔凸模与凹模共同作用先冲出活门制件上的孔，而后利用第一步冲出的两个10mm的半圆孔做精确定位使外形凸模与凹模共同作用使工件落料成形。 关键词：冲孔—落料级进模冲孔凸模凹模压力机吨位 Thevalve rammi
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nage 目录 绪论……………………………………………………………………………1 1.1国内模具的现状和发展趋势………………………………………………1 1.1.1国内模具的现状…………………………………………………………1 1.1.2国内模具的发展趋势……………………………………………………2 1.2国外模具的现状和发展趋势………………………………………………2 1.3活门冲孔落料级进模具设计与制造方面…………………………………3 1.3.1活门冲孔落料级进模具设计的设计思路………………………………3 1.3.2活门模具设计的进度……………………………………………………3 1工艺性分析……………………………………………………………………5 2冲压工艺方案的确定…………………………………………………………6 3排样设计………………………………………………………………………7 3.1确定零件的排样方案…………………………………………………………7 3.2条料宽度、导料板间距离和材料利用率的计算……………………………7 4模具结构形式的选择与确定…………………………………………………9 5冲压力与压力中心的计算………………………………………………………10 5.1冲裁工序总力的计算…………………………………………………………10 5.2初选压力机……………………………………………………………………11 5.3压力中心的计算………………………………………………………………11 6模具主要零件……………………………………………………………………13 6.1工作零部件的设计与标准化……………………………………………13 6.2定位装置的设计与标准化……………………………………………………18 6.3标准模架的选用………………………………………………………………19 6.4卸料部件的设计与标准化……………………………………………………20 7模具装配与调试…………………………………………………………………21 7.1安装总述………………………………………………………………21 7.2模具装配过程…………………………………………………………………21 8垫片冲孔落料连续模总装图……………………………………………………23 9压力机的校核…………………………………………………………………24 结束语………………………………………………………………………………25 致谢…………………………………………………………………………………26 参考文献……………………………………………………………………………27