后盖的机械加工艺规程及钻孔工艺装备设计.docVIP

课 程 设 计 题 目： 孔工艺装备设计 班　　级： 一、设计题目 　　二、原始资料 被加工零件的零件图草图 1张 生产类型中批或大批大量生产 三、上交材料 被加工工件的零件图 1张 毛坯图 1张 机械加工工艺过程综合卡片 1张 与所设计夹具对应那道工序的工序卡片 ? 1张 夹具装配图 ? 1张 夹具体零件图 1张 课程设计说明书5000~8000字 1份 四、进度安排(参考) 熟悉零件画零件图 2天 2）选择工艺方案确定工艺路线填写工艺过程综合卡片天 3）工艺装备设计画夹具装配图及夹具体图 9天 4）编写说明书 3天 5）准备及答辩 2天 五、指导教师评语 成 绩： 指导教师　　　　　　　 日　　期　　　　　　　  、Abstract Machinery Manufacturing Technology curriculum design is finished we learn all the basic course of the University, technology and the most basic course after the specialized, which is our graduation project before conducting the various courses of study by an in-depth comprehensive review of the total, is also a Theory with practical training, therefore, in our four years of university life occupy an important position. This is the cover design, parts map, rough map, one of the assembly, machining process with the card and the corresponding fixture designed by the procedures of the process of a card. First of all, we must familiar with the parts, the parts subject to the back cover. Back cover understanding of the role, followed in accordance with the nature of parts and components in the face of the map on the roughness of rough determine the size and mechanical Jiagongyuliang. According to another location and then we set the benchmark fine first base, established after the benchmark crude, finalizing the cover of the road map, the enactment of the workpiece clamping programme, to draw fixture assembly. 目录 1、后盖的工艺分析及生产类型的确定 1 1.1、后盖的用途 1 1.2、后盖的技术要求 1 1.3、审查后盖的工艺性 2 1.4、确定后盖的生产类型 2 2、确定毛胚、绘制毛胚简图 2 2.1选择毛胚 2 2.2确定毛胚的尺寸公差和机械加工余量 3 2.2.1公差等级 3 2.2.2后盖铸造毛坯尺寸工差及加工余量 3 2.2.3绘制后盖毛坯简图 4 3、拟定后盖工艺路线 4 3.1、定位基准的选择 4 3.1.1．精基准的选择 4 3.1.