机械毕业设计-CA6140车床床头箱第一道加工工序、IV轴孔加工夹具设计.doc

优秀机械毕业设计欢迎下载,学****交流加 QQ 197216396 专业机械设计解君之忧Ⅰ摘要一个国家是否强大,主要是看这个国家的工业是否发达。现在中国仍处在工业化中期。中国早在 50年代初所处的国际局势下,选择了优先发展重工的道路,重工业中的大多数产品由机床加工的。床头箱体是机床的基础件,通过它把机床主轴、零部件与机床联结在一起。床头箱箱体有精度高的平面和较多的孔系要加工,工序内容多工艺路线长,其加工质量在很大程度上决定着机床的装配精度与性能。在大中批量生产条件下,大量加工实例分析中看出,工艺方案考虑不周,加工路线设计不好,造成加工差错,工作量的成倍增加,制造成本上升。对机床床头箱体的工艺规程设计问题进行研究,对提高其使用效率和使用质量具有重大实际意义。机床床头箱工艺的分析采用工序分散、工序集中的原则来优化加工工艺的路线,从而减少铣床和镗床夹具装卡的次数,减少了专用夹具的设计。使其在加工过程中有据可依并使其具有总结性的经验和理论根据。对其他的箱体加工工艺分析和夹具设计提供理论性的依据。关键词: 机床床头箱;工艺分析;夹具优秀机械毕业设计欢迎下载,学****交流加 QQ 197216396 专业机械设计解君之忧Ⅱ A BSTRACT A country whether formidable, is mainly looked that this national industry tobe whether developed. Now China still occupied the industrialization intermediate stage. China as early as located in the early 50s under the international situation, chose has given priority to the heavy industry in the path heavy industry majority products to process by the engine bed. The headstock body is engine bed's foundation, through it the engine bed main axle, the spare part and the engine bed joins in together. The headstock box body has the precision high plane and many Kong Xi must process, the working procedure content multi-craft route is long, its processing quality is deciding engine bed's assembly precision and the performance toa great extent. Under the major and medium volume production condition, processes in the example analysis to see massively, the craft plan consideration week, does not process the location not tobe good, creates the processing mistake, work load increase doubled and re-doubled, the production cost rise. Conducts the research to the engine bed headstock body's technological process design question, to raises its use efficiency and the use quality has the significant practical significance. The engine bed headstock craft's analysis uses the working procedure to disperse, the working procedure centralized principle to optimize the processing craft the route, thus reduces the milling machine and the boring lathe jig installs the card the numb