CA6150普通车床的数控技术改造.doc

南昌工程学院毕业设计(论文)机械动力工程系系数控专业毕业设计(论文)题目CA6150普通车床的数控技术改造学生姓名刘志林班级数控《三》班学号00415139指导教师唐刚完成日期2007年6月15日南昌工程学院毕业设计-2-目录第一章绪论································································································-3-数控技术和装备发展趋势···········································································-3-第二章数控机床系统总体设计········································································-8-一总体方案设计内容··············································································-8-二总体方案确定····················································································-8-第三章进给系统设计计算·············································································-10-一选择脉冲当量···················································································-10-二计算切削力······················································································-10-三滚珠丝杠螺母副的计算和选型······························································-11-四齿轮进给齿轮箱传动比计算································································-20-五步进电机的计算和选型·······································································-21-第四章微机数控系统的设计··········································································-26-一微机数控系统的设计纲要····································································-26-[一]硬件电路设计···········································································-26-[二]软件电路设计···········································································-27-二8031单片机及其扩展·········································································-27-[一]8031单片机的简介····································································-27-[二]8031单片机的系统扩展······························································-28-[三]存储器扩展··············································································-30-[四]I/O口的扩展············································································-31-三步进电机驱动电路·············································································-32-[一]脉冲分配器(环行分配器)···