CA6150普通车床的数控技术改造设计

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

班级数控《三》班

学号

指导教师

完成日期2007 年 6 月15 日

南昌工程学院毕业设计

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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） ······································································ - 32 - [二] 光电隔离电路 ····························································································· - 33 - [三] 功率放大器································································································· - 33 - [四] 其他辅助电路 ····························································································· - 34 - 四 数控系统的软件设计 ··························································································· - 35 -

[一] 软件脉冲分配器 ························································································· - 35 - [二] 逐点比较法插补程序 ················································································· - 37 - [三] 步进电机升降速软件设计 ·········································································· - 38 -

第五章 数控机床零件加工程序 ························································································ - 40 - 第六章 总结与展望 ···········································································································

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