侧双圆孔U形弯曲件的冲压成形工艺及模具设计【落料冲孔复合模、弯曲模】 摘要 本设计题目为侧双圆孔U形弯曲件复合模具设计，体现了典型复合模具设计的要求，内容与方向。通过工艺分析，工艺方案的确定，确定了模具设计的方向，对毛坯尺寸的确定，计算冲裁力，来计算压力中心，选择压力机和压力机的吨位。 本设计运用了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，为选去模具的类型做了准备，同时，也为凸，凹模的材料有了依据。后分析冲裁件的特征，确定了模具设计参数，选择其他零件及卸料装置。也为凸，凹模尺寸的计算有了根据。还有零件的加工工艺。 关键词:复合模凸模凹模 ABSTRACT The desig
n title is the desig
n of compou
nd die for U shaped be
ndi
ng partswith side double rou
nd holes,which embodies the requireme
nts, co
nte
nt a
nd directio
n of typical compou
nd die desig
n. Through process a
nalysis a
nd process pla
n determi
natio
n, the directio
n of die desig
n is determi
ned, the bla
nk size is determi
ned, the pu
nchi
ng force is calculated, the pressure ce
nter is calculated, a
nd the to
n
nage of press a
nd press is selected. This desig
n uses the basic k
nowledge of bla
nki
ng process a
nd die desig
n. First, the performa
nce requireme
nts of the plate are a
nalyzed, a
nd the type of die selectio
n is prepared. At the same time, the material for co
nvex a
nd co
ncave die is also provided. After a
nalyzi
ng the characteristics of the bla
nki
ng parts, the desig
n parameters of the die are determi
ned, a
nd the other parts a
nd u
nloadi
ng devices are selected. Also for co
nvex, the calculatio
n of the die size is based. There is also the processi
ng tech
nology of the parts. Keywords: compou
nd die, pu
nch, die 目录 1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………………………………………………………3 1.2国外模具的现状和发展趋势…………………………………………………3 1.3冲压加工的特点………………………………………………………………5 1.4冲压加工和冲模在生产中的地位……………………………………………5 1.5 U形弯曲模具设计的进度……………………………………………………6 2冲压工艺的分析…………………………………………………………………7 2.1工件图及要求…………………………………………………………………7 2.2工件的工艺分析………………………………………………………………8 2.3确定工艺方案…………………………………………………………………8 2.4工艺计算………………………………………………………………………10 2.41计算毛坯长度………………………………………………………………10 2.42排样及材料利用率…………………………………………………………11 2.43计算凸、凹模刃口尺寸……………………………………………………11 2.44计算压力……………………………………………………………………17 2.5模具总体设计…………………………………………………………………19 2.6模具主要零件及结构设计……………………………………………………19 2.61模柄…………………………………………………………………………19 2.62固定板………………………………………………………………………20 2.63凸模固定板…………………………………………………………………20 2.64橡胶…………………………………………………………………………20 2.65螺钉和销钉…………………………………………………………………21 2.66导柱、导套…………………………………………………………………22 2.67模架及其它零部件的设计…………………………………………………22 2.7冲孔落料总装图………………………………………………………………23 2.8弯曲总装图……………………………………………………………………24 3模具的安装与调试………………………………………………………………25 3.1模具的装配……………………………………………………………………25 3.2模架的装配…………………………………………………………………26 3.3总装与调试问题的预测……………………………………………………26 3.4冲裁模试冲时常见的故障，原因及调整方法……………………………27 4总结……………………………………………………………………………28 致谢………………………………………………………………………………30 参考文献……………………………………………………………………………31