毕业设计（论文）-螺母注塑模具设计.doc

2015届本科生毕业设计
螺母注塑模的CAD/CAM
CAD / CAM of nut mold
学生姓名
学号
所在学院
工程学院
班级
模具1116
所在专业
机械设计制造及其自动化
申请学位
指导教师
职称
副指导教师
职称
答辩时间
2015年 6 月 3 日
目录
设计总说明················································1
Introduction··············································2
1 前言··················································3
2 产品工艺性分析··········································4
材料性能·············································4
成型特性及条件··········································4
·········································5
塑件体积及质量估算·····································5
初选注塑机的型号及规格·····································5
3 模具结构的确定··········································5
分型面的确定··········································5
型腔数目的确定及其布置··································6
确定浇注系统··········································6
主流道尺寸·········································6
分流道尺寸········································7
浇口尺寸············································7
冷料穴形式及尺寸··································7
定位圈尺寸·······································7
凸模和型芯的结构及传动·································8
结构设计
·········································8
固定方式············································8
传动系统设计·····································8
顶出机构的设计········································9
数量及结构形式····································9
复位装置·········································9
顶出机构的导向·····································9
拉料杆的设计·····································9
顶出距离的确定·····································9
侧向分型及抽芯机构的设计·································9
抽芯距的计算·····································9
斜导柱倾斜角的确定···································9
斜导柱直径及长度确定··································10
最小开模行程和斜导柱工作长度的确定························11
滑块的设计·······································