课程设计
目 录
前 言...................................................................................................................................................................1
设计任务 ...............................................................................................................................................................2
1 零件的工艺分析 ................................................................................................................................................3
1.1 设计题目 ................................................................................................................................................3
1.2 零件的使用要求基本分析 ....................................................................................................................3
1.3 零件的工序特点 ....................................................................................................................................3
2. 定位方案选择 ...................................................................................................................................................4
2.1 定位方案分析 ........................................................................................................................................4
2.1.1 定位方案 a .................................................................................................................................4
2.1.2 定位方案 b .................................................................................................................................4
2.2 定位方案确定 .........................................................................................................................................5
3. 夹紧方案选择 ...................................................................................................................................................5
3.1 夹紧方案 a.............................................................................................................................................6
3.2 夹紧方案 b.............................................................................................................................................6
3.3 夹紧方案确定 ........................................................................................................................................6
4 夹具具体结构 ....................................................................................................................................................6
4.1 定位元件 ................................................................................................................................................6
4.2 夹紧机构 ................................................................................................................................................7
4.3 导向机构 ................................................................................................................................................7
4.3.1 钻模体机构 ................................................................................................................................7
4.3.2. 钻套的选择 ...............................................................................................................................8
4.3.3 钻套高度的选择 ........................................................................................................................8
4.3.4 排屑间隙 ....................................................................................................................................9
5. 定位误差 ...........................................................................................................................................................9
5.1 定位误差分析 ........................................................................................................................................9
5.2 定位误差计算 ........................................................................................................................................9
6 夹紧力计算 ......................................................................................................................................................10
6.1 切削力计算 ..........................................................................................................................................10
6.2 实际所需夹紧力计算 ..........................................................................................................................10
6.3 夹紧力校核 .......................................................................................................................................... 11
7 夹具精度分析与计算 ......................................................................................................................................12
8 夹具总装 ..........................................................................................................................................................12
总结 .....................................................................................................................................................................14
参考文献 .............................................................................................................................................................15