目录 1课程设计的题目···································1 2课程设计时间·····································1 3课程设计的目的及其要求···························1 4设计内容·········································2 4.1零件的分析·····································2 4.2零件的工艺分析··································3 4.3确定毛坯的制造形式及基面的选择··················3 4.4选择加工方法，拟定工艺路线······················4 4.5加工设备及刀具、夹具、量具的选择················7 4.6机械加工余量、工序尺寸及毛坯尺寸的确定··········8 4.7确定切削用量及基本时间··························10 5铣Φ25下端面夹具设计夹具设计····················15 5.1夹具的夹紧装置和定位装置························15 5.2问题的提出·····································17 5.3夹具设计········································17 5.3.1定位基准的选择·······························17 5.3.2切削力和夹紧力计算····························18 5.4定位误差的分析··································19 5.5确定夹具体结构和总体结构······················20 5.6夹具设计及操作的简要说明························21 6、心得体会·········································21 7、参考文献·········································22