UG直齿圆柱齿轮注塑模具设计+CAD图纸
[关键词]：模具设计；UG；Moldflow； The Design of Spur Gear Injection Mold
[Abstract]:This design is mainly for spur gear injection mold design, this kind of gears are applied into car’s windows transmission system. When injecting, some problems like low intensity, injection shortage, cavitation will appear. To solve these problems, this task requires designing the spur gear injection mold and determining the program of the injection process, the model of the injection machine, sub-surface, molded parts, release mechanism and the mold base via doing detailed process analysis to spur gear. Using UG to build three-dimensional model, drawing three-dimensional assembly pictures. Then drawing two-dimensional assembly pictures. After that, using Moldflow to do moldflow analysis, determining the best gate location, analyzing where cavitation and weld marks generating, analyzing flow resistance and filling time etc. Using these analysis to improve the process and structure. At last, improving the molding quality，finishing the whole work.
[Keywords]: Mold design; UG; Moldflow;
目录
第1章绪论.4
1.1本课题研究内容4
第2章塑件工艺分析.6
2.1塑件分析6
2.2塑件的原材料分析及工艺参数6
2.2.1尺寸精度分析6
2.2.2表面质量分析6
2.2.3PA66的注射工艺参数.7
第3章直齿圆柱齿轮注塑模具总体方案设计.8
3.1方案设计8
3.2方案选择8
第4章注塑机的选型.9
4.1注射机型号的选择9
4.2所需注射量的计算9
4.2.1塑件质量、体积计算9
4.2.2型腔数量的确定9
4.3注射机有关工艺参数的校核.11
4.3.1最大注射量校核.11
4.3.2锁模力校核.11
4.3.3注射压力的校核.11
4.3.4开模行程的校核.12
4.3.5推出装置校核12
第5章分型面的选择与浇注系统的设计13
5.1分型面的选择.13
5.2主流道设计.13
5.3分流道设计.13
5.4浇口设计.14
5.5冷料穴和拉料杆的设计.15
第6章成型零部件的设计16
6.1凹模和凸模的结构设计.16
6.2成型零部件的工作尺寸计算.16
6.2.1型腔径向尺寸的计算.17
6.2.2型芯径向尺寸的计算17
6.2.3型腔深度和型芯高度尺寸的计算17
6.2.4中心距尺寸计算.18
6.3定位圈设计.18
6.4浇口套设计.19
6.5推杆设计.19
6.6动模板设计.19
6.7动模座板设计.20
6.8定模板设计.20
第7章推出机构的设计和模架的选取22
7.1推出机构的结构组成与分类.22
7.1.1推出机构的结构组成.22
7.1.2推出机构的分类.22
7.1.3推出机构的设计要求22
7.2推出力计算.22
7.3模架选取.23
第8章模流分析25
8.1最佳浇口分析25
8.2流动阻力指示.26
8.3充填时间.26
8.4速度/压力切换时的压力27
8.5流动前沿温度.27
8.6达到顶出温度的时间.28
8.7气穴.28