机械5

3T电动葫芦滑轮外壳工艺性分析及冲孔模具设计 摘要 本文论述了冲压技术的现状与发展趋势；对3T电动葫芦滑轮外壳工件的冲裁工艺性进行了详细的分析；结合工件外形及结构特点设计了一副单工序冲孔模具。在本副模具中，为使工件成型，通过冲孔的方式完成工序。在利用已有零件图的情况下，基于工件的工艺性分析设计了工件的冲裁结构，进行了冲压工艺力的计算，完成了冲裁凸、凹模刃口尺寸的计算，同时设计了冲孔模具的具体结构，完成了模具装配图及零件图的绘制，合理选取曲柄压力机并完成其校核分析。 关键词：3T电动葫芦滑轮外壳；单工序冲孔模具；冲裁 Tech
nological a
nalysis a
nd pu
nchi
ng die desig
n of 3T electric hoist pulley shell Abstract: This paper discusses the curre
nt situatio
n a
nd developme
nt tre
nd of stampi
ng tech
nology, a
nalyzes the stampi
ng process of 3T electric hoist pulley shell i
n detail, a
nd desig
ns a pair of si
ngle process pu
nchi
ng die combi
nedwith the shape a
nd structural characteristics of theworkpiece. I
n this composite die, i
n order to make theworkpiece formi
ng, the process is completed by pu
nchi
ng a
nd bla
nki
ng. I
n the case of usi
ng the existi
ng part drawi
ng, based o
n the process a
nalysis of theworkpiece, the layout drawi
ng of theworkpiece is desig
ned, the stampi
ng process force is calculated, the cutti
ng edge size of pu
nch a
nd die is calculated, a
nd the specific structure of the bla
nki
ng compou
nd die is desig
ned, the drawi
ng of the die assembly drawi
ng a
nd part drawi
ng is completed, a
nd the cra
nk press is selected reaso
nably a
nd the checki
ng a
nalysis is completed. Keywords: 3T electric hoist pulley shell；Si
ngle process pu
nchi
ng die； Bla
nki
ng 目录 第一章绪论1 1.1冲压技术的现状及其发展趋势1 1.2设计课题的主要内容及意义2 第二章工艺设计5 2.1工件描述5 2.2工件工艺分析5 2.3工艺方案确定6 2.4模具总体设计6 2.5冲压工艺力的计算8 2.5.2卸料力、顶件力的计算9 2.5.3关于压力中心的计算9 2.5.4凸凹模刃口尺寸计算10 25.5压力机公称压力的选取11 第三章模具零件详细设计12 3.1凹模结构设计及固定方式12 3.1.1凹模刃口形式12 3.1.2凹模的外形尺寸设计12 3.2凸模结构设计13 3.2.1凸模的结构形式13 3.2.2凸模长度的确定13 3.2.3凸模强度校核14 3.2.4凸模的固定方式14 3.3定位板的设计14 3.4导向零件设计15 3.5其他零件15 3.5.1模座15 3.5.2固定板15 3.5.3垫板16 3.5.4螺钉和销钉16 第四章压力机校核17 4.1压力机选择17 4.2设备校核17