机械毕业设计(论文)-蜗轮蜗杆减速器壳体加工工艺及工装具设计【全套图纸】 .doc

3.1 研究原始质料 ············································································ 31 3.2 定位、夹紧方案的选择 ································································ 31 4.3 切削力及夹紧力的计算 ································································ 31 3.4 误差分析与计算 ········································································· 33 3.5 定位销选用 ··············································································· 34 3.6 夹具设计及操作的简要说明 ·························································· 34 4 钻6-M8底孔的钻床夹具设计 ································································· 35

4.1 夹具的夹紧装置和定位装置 ·························································· 35 4.2 夹具的导向 ··············································································· 36 4.3 切削力及夹紧力的计算 ································································ 37 4.4 钻孔与工件之间的切屑间隙 ·························································· 39 4.5 钻模板 ····················································································· 40 4.6 定位误差的分析 ········································································· 40 4.7 钻套、衬套、钻模板设计与选用 ···················································· 41 4.8 确定夹具体结构和总体结构 ·························································· 43 4.9 夹具设计及操作的简要说明 ·························································· 44 总 结 ··································································································· 45 参 考 文 献 ·························································································· 46 致谢 ····································································································· 47