机械5

该零件上孔轴线与水平方向成5.5°的夹角，同时支架两侧板的平面与水平面成30°的夹角，两侧孔中心到顶凸台平面的距离为40mm，且每孔中心线与竖直方向成60°夹角。 一、零件的分析················································2 1、零件的作用··············································2 2、零件的结构··············································2 3、设计基准及技术关键······································2 4、主要加工表面············································2 5、零件的工艺分析·········································3 二、工艺规程的设计···········································3 1、确定毛坯的制造形式······································3 2、基准的选择·············································3 3、制定工艺路线···········································3 4、机械加工余量、工序尺寸及毛坯尺寸的确定··················4 5、切削用量及机床的确定···································5 三、零件专用夹具的设计······································7 1、设计方案的确定·········································8 2、夹紧力的分·············································9 3、导向设计············································9 4、精度的分析·············································10 四、课程设计总结··············································10 五、参考目录··················································11 一、零件的分析 1、零件的作用 题目给出的是CA10B解放牌汽车中间轴轴承支架，它的主要作用是稳定轴承，便于中间轴的安装，从零件图可知对零件的精度要求不高。 2、零件的结构 该零件上孔轴线与水平方向成5.5°的夹角，同时支架两侧板的平面与水平面成30°的夹角，两侧孔中心到顶凸台平面的距离为40mm，且每孔中心线与竖直方向成60°夹角。