机械5

铝合金螺帽的压铸模结构设计 摘要：压铸是一种近终形的成形方法，具有生产效率高、尺寸精度高等特点，在制造业，尤其是规模化产业获得了广泛的应用和迅速的发展。压铸件，尤其是镁、铝、锌合金压铸件，在汽车、通讯等领域获得了广泛的应用。本设计主要进行了铝合金螺帽压铸模的设计。首先，对制件进行了工艺性分析，根据制件有长宽比例相差悬殊的特点，采用了侧浇道。其次，根据锁模力的计算，选择了DAM1113G型卧式压铸机；为了便于破损零部件的更换，采用镶拼式结构，对成型零部件进行了详细的设计计算；模具采用导柱、导套实现导向，采用推杆推出制件。最后，对压铸机及模具的强度进行了校核，且借助AutoCAD和UG、PRO/E三维设计软件绘制了模具的装配图和实体图。 关键词：压铸；模具；UG；CAD Structure desig
n of die casti
ng die for alumi
num alloy
nut Abstract：Die casti
ng is a
near
net shape formi
ng process, high productio
n efficie
ncy, size precisio
n higher characteristic, i
n the ma
nufacturi
ng i
ndustry, especially the large-scale i
ndustry obtai
ned thewidespread applicatio
n a
nd rapid developme
nt. Die casti
ng, especially of mag
nesium, alumi
num,zi
nc alloy die casti
ngs, obtai
ned thewidespread applicatio
n i
n the automotive, commu
nicatio
ns a
nd other fields. The desig
n for the mai
n desig
n of alumi
num alloy die-casti
ng. First of all, o
n the part of the a
nalysis of the process, accordi
ng to the ratio of le
ngth towidth products have differe
nt characteristics, the side gate. Seco
ndly, accordi
ng to the clampi
ng force calculatio
n, select DAM1113G type horizo
ntal die casti
ng machi
ne; i
n order to replace the damaged parts is, the composite structure of moldi
ng parts, detail desig
n calculatio
n; mould adopts the guide pillar, the guide sleeve impleme
ntatio
n guide, by putti
ng i
ntroductio
n part. Fi
nally, the die casti
ng machi
ne a
nd mold stre
ngth is checked, a
ndwith the help of AutoCAD a
nd UG, the 3D desig
n software PRO/E to draw the mold assembly drawi
ng a
nd e
ntity graph. Keywords: Die Casti
ng; mold; UG; CAD 目录 1绪论1 1.1课题意义1 1.1.1压力铸造的特点1 1.1.2压铸模具设计的意义1 1.2压铸发展历史、现状及趋势2 1.2.1压铸的发展历史2 1.2.2我国压铸产业的发展2 1.2.3压铸产业的发展趋势3 1.3设计内容4 2压铸模具的整体设计6 2.1铸件工艺性分析6 2.1.1铸件立体图及工程图6 2.1.2铸件分型面确定6 2.1.3浇注位置的确定7 2.2压铸成型过程及压铸机选用7 2.2.1卧式冷室压铸机结构7 2.2.2压铸成型过程8 2.2.3压铸机型号的选用及其主要参数9 2.3浇注系统设计9 2.3.1带浇注系统铸件立体图9 2.3.2内浇口设计10 2.3.3浇道设计10 2.3.4直浇道设计11 2.3.5排溢系统设计11 2.4压铸模具的总体结构设计12 3成型零件及模具结构设计16 3.1成型零件设计概述16 3.2浇注系统成型零件设计17 3.3铸件成型零件设计19 3.3.1成型收缩率19 3.3.2脱模斜度19 3.3.3压铸件的加工余量20 3.3.4铸件成型尺寸的计算20 3.4脱模机构的设计21 3.4.1脱模机构的选择21 3.4.2司筒推出机构设计21 3.5导向与定位机构设计22 3.6排气及引气系统的设计23 3.7模温调节系统的设计23 4模具结构总图25 总结26 致谢27