目录
摘要...........................................................................................................................................I
Abstract....................................................................................................................................II
1 绪论 ....................................................................................................................................1
1.1 设计选题背景及意义 ................................................................................................1
1.2 钻孔机床的现状 ........................................................................................................2
1.3 可编程控制器（PLC）的特点................................................................................3
1.3.1 应用简便 ........................................................................................................3
1.3.2 可靠性高 ........................................................................................................3
1.4 结论 ............................................................................................................................4
第二章 系统的总设计 ........................................................................................................4
2.1 系统设计总体方案选择 ...........................................................................................4
2.2 机械部分简要介绍 ...................................................................................................4
2.3 电气控制系统的总体设计 .......................................................................................5
2.3.1 电控系统功能设定 ........................................................................................6
2.3.2 总体结构关系 ................................................................................................6
第三章 电气控制系统的电路设计 ..................................................................................9
3.1 电动机控制回路设计 .............................................................................................9
3.2 控制回路接线 .......................................................................................................10
3.3 光电开关的接线图 ...............................................................................................10
3.2 计数器的接线图 ...................................................................................................11
3.4 控制面板图 ...........................................................................................................14
3.5 I\O 分配表.............................................................................................................15
第四章 系统主要器件的选择 ................................................................................17
4.1、PLC 选择...............................................................................................................17
4.2、计数器选择 ...........................................................................................................17
4.3、开关和按钮的选择 ...............................................................................................18
4.4、行程开关的选择 ...................................................................................................19
4.2 机械部分器件的选择 .............................................................................................20
4.2.1、电磁阀的选择 ............................................................................................20
4.2.2、电机的选择 ................................................................................................21
