车床z向进给数控改造(毕业论文设计)

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1、毕业论文（设计）题目：车床Z向进给数控改造校区(函授站)：北京信息科技大学专业：机电一体化班级：1011机电一体化（专科）学号：2010041188学生姓名：江军华导师姓名：孙志永起止时间：2012-04-09至2012-06-03北京信息科技大学继续教育学院29北京信息科技大学继续教育学院毕业论文（设计）任务书学生姓名江军华指导教师孙志永职称教授校区(函授站)北京信息科技大学专业机电一体化题目车床Z向进给数控改造任务与要求1．完成一台机床工作台的数控改造；要求工作台能实现点位(或连续)控制；2．改造部分进给伺服系统一个坐标轴的机械装配图一张（A1）；3．计

2、算机I/O接口、驱动电路等电路原理设计图一张（A1）；4．设计说明书8000字左右（前言，控制系统总体方案的分析及框图，机械部分设计计算，机构设计说明，硬件电路设计说明，技术经济分析，结束语，参考文献，后记，附录）；5.选步进电机为驱动电机，脉冲当量取0.01mm/step；6.旋转——移动的转换用滚动丝杠；7.能用键盘输入命令，控制工作台；能实时显示工作台当前运动位置；有超越边界报警，并停止运动。原始数据：1.工作台（或刀架）重G=180N；2．工作台行程L=0～300mm；3．工作台最大移动速度Vmax=3m/min；工作台工作进给速度Vmax=1m/m

3、in；4．切削分力：FX=420N，FY=1100N，FZ=1660N；5．工作台尺寸：300×550mm2；6．各传动部件的设计寿命15000～48000h。开始日期2012-04-09完成日期2012-06-0329目录概述···············································································1第一章总体设计方案的拟订··················································51.1总体方案确定················

4、················································51.2经济型数控车床总体方案框图··················································6第二章车床进给伺服系统机械部分设计计算······························72.1选择脉冲当量·······························································72.2计算切削力···································

5、······························72.3滚珠丝杠螺母副的计算和选型·················································72.3.1计算进给牵引力Fm··························································72.3.2计算最大动负载C···························································72.3.3滚珠丝杠螺母副的选型························

6、·······························8292.3.4传动效率计算·······························································82.3.5刚度验算···································································82.3.6稳定性校核·································································92.3.7滚珠丝杠副几何参数······

7、···················································92.4齿轮传动比计算······························································102.5步进电机的计算和选型························································102.5.1初选步进电机······························································102.5.2校核转动惯

8、量转矩·······················