2012届本科毕业论文（设计）题目：旋转钻床工作台的设计摘要在机械加工行业中，旋转钻床工作台使用量很大，为了提高加工效率，保证加工精度，必须对钻床工作台进行数控化改进。本文对传统钻床工作台存在的不能很好的在圆周方向上钻孔问题，设计了一款立式钻床旋转工作台。本文确定数控钻床工作台整体结构设计方案，对机械部分对圆周方向上旋转，x、y方向上平移做了重点设计。对控制系统部分，本文阐述了用单片机控制交流伺服电机以实现钻床工作台旋转、平移过程。阐述了整个系统的控制原理。本课题所设计的工作台，其加工过程是将所需加工孔的数据通过输入设备输入到控制系统，然后系统根据工件上锁需加工孔的坐标，是工作台运动照到孔的位置，实现对工件的全自动钻孔，并且系统在加工过程中实时显示加工数据。关键词：传动系统、控制系统、步进电动机AbstractInthemechanicalprocessingindustries,rotarydrillingmachineworkingtableusedinlargequantities,inordertoimprovetheprocessingefficiency,ensuringtheprocessingprecision,totableofthedrillingmachineNCimprovement.Basedontraditionaldrillingmachineworkingtableproblem,designaverticaldrillingmachinerotarytable.Basedonthedomesticandintermationalcurrentsituationanddevelopmenttrendundertookananakysis,indeterminingtheoverallscheme,elaboratedwithSCMcontrolACservomotortoachievedrillingmachineworktablerotation,translationprocess.ThefirstrunningprocessoftheCNCdrillingdesignedbythesubject,istoinputtheprocessingdataabouttheholeintothecontrolsystembytheenteringequipment,thenfindthelocationoflocationoftheholebymovingthetableaccordingtocoordinateofthehole,andtheproceddingdataofthesystemdisplayedinreal-time.Keywords:drivesystem,controlsystem,steppingmotor1目录1绪论..............................................................11.1现状........................................................11.2发展前景....................................................12工作台方案的设计..................................................22.1工作原理及总体框图...........................................22.2流程图.......................................................23旋转工作台传动系统设计............................................33.1旋转部分设计.................................................33.1.1工作台箱体设计.........................................33.1.2传动比及参数确定.......................................43.1.3步进电机的选择.........................................53.1.4轴的设计...............................................63.1.5轴承的选择.............................................83.1.6联轴器的选择...........................................83.2工作台X-Y机械部分设计.......................................93.2.1确定工作台的尺寸极其重量...............................93.2.2滚珠丝杠参数计算与选型................................113.2.3滚动导程参数计算与选型................................113.2.4步进电机参数计算与选型................................123.2.5支撑座参数设计........................................143.2.6联轴器的选择..........................................144工作台控制系统设计...............................................154.1控制系统元器件的选择........................................154.1.1单片机的选择..........................................154.1.2I/O接口芯片选择.......................................164.1.3译码器的选择..........................................174.2控制系统电路的设计..........................................184.2.1主控电路设计..........................................184.2.2I/O接口电...
