机械设计和制造的毕业设计论文

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1、云南广播电视大学云南国防工业职业技术学院机械电子工程学院毕业论文（设计）课题数控机床的加工与维护教研室机械设计与制造教研室专业机械设计与制造班级10机制班学生姓名龙志文学号20101120122导师姓名浦绍荣职称副教授2012年10月18日摘要随着社会的发展和技术的进步,数控机床已是衡量一个国家机械制造业技术改造的必经之路，是未来工厂自动化的基础。需要大批量能掌握数控机床编程、操作、维修的人员和工程技术人员。目前，振兴我国机械装备制造业的条件已经具备，时机也很有利。我们要以高度的使命感和责任感，采取更加有效的措施，克服发展中存在的问题，把我国从一个制造业大国建

2、设成一个制造业强国，成为世界顶级制造业基地之一。但数控机床是一种价格昂贵的精密设备，数控机床的正确使用和维护影响到我们加工出来的工件的精度和工件是否合格！所以，对于机床的维护也是很重要的！本文简要介绍了数控机床的发展趋势、加工的实例及其维护。通过本次毕业论文让我们毕业生更好的熟悉数控机床，确定加工工艺，学会分析零件，为即将走上工作岗位打下良好基础。关键词：数控机床；加工；维护目录第一章数控机床的简介·············································21.1数控机床的发展史·························

3、··················21.2数控机床的分类·············································31.3数控机床的发展趋势·········································5第二章数控加工的准备阶段·········································92.1数控加工刀具的要求及种类···································92.2装夹方式和夹具的选择····································

4、··112.3数控铣床安全操作规程······································13第三章实例加工··················································143.1零件图纸··················································143.2材料的选择················································143.3铣床的对刀··········································

5、······153.4零件的加工工艺性分析······································153.5编制加工工艺过程··········································173.6编制数控刀具及加工工艺卡··································18第四章数控机床的维护············································204.1制订数控系统日常维护的规章制度····························204.2应尽量少开数控柜和

6、强电柜的门······························204.3定时清扫数控柜的散热通风系统······························204.4经常监视数控系统用的电网电压······························214.5定期更换存储器用电池······································214.6数控系统长期不用时的维护··································21参考文献········································

7、·················22致谢·····························································23第一章数控机床的简介1.1数控机床的发展史20世纪中期，随着技术的发展，自动信息处理、数据处理以及电子的出现，给自动化技术带来了新的概念，用数字化信号对机床运动及其加工过程进行控制，推动了机床自动化的发展。　采用数字技术进行机械加工，最早是在40年代初，由美国北密支安的一个小型飞机承包商派尔逊斯公司（ParsonsCorporation）实现的。他们在制造飞机的框架及直升飞机的转动机翼时，利用全

8、数字电子计算机对机翼加工路径进行数据处