t68镗床的控制系统的改造（本科毕业论文设计）.doc
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t68镗床的控制系统的改造（本科毕业论文设计）,t68镗床的控制系统的改造（本科毕业论文设计）20313字数摘 要众所周知，我国是世界制造大国，掌握着全世界制造业的命脉。我国制造业设备的革新变得越来越重要，特别是机床设备的革新对制造业的发展起着制约作用。机床行业近年来取得的巨大成就。镗床作为一种具有综合加工性能的金属切削机床，是精加工设备之一，是冷加工中使用比较普遍...
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T68镗床的控制系统的改造（本科毕业论文设计）
20313字数
摘 要
众所周知，我国是世界制造大国，掌握着全世界制造业的命脉。我国制造业设备的革新变得越来越重要，特别是机床设备的革新对制造业的发展起着制约作用。机床行业近年来取得的巨大成就。
镗床作为一种具有综合加工性能的金属切削机床，是精加工设备之一，是冷加工中使用比较普遍的设备，其工艺范围很广，在整个制造业中占有很重要的地位。T68镗床是目前我国机械工厂中使用最为普遍的一种镗床。镗床在加工过程中有很高的精度要求，对控制系统的要求也很高。传统镗床多采用继电器控制，其电器比较复杂，可靠性差，故障诊断与排除困难。
针对传统继电接触控制的镗床存在电路复杂、可靠性差、故障诊断与排除困难等缺点, 提出了用可编程控制器对T68镗床控制系统进行改造。介绍了西门子S7-200 系列可编程控制器（PLC）在镗床控制系统中的应用, 给出了可编程控制器改造T68 镗床电气控制系统的硬件组成和软件设计, 其中包括可编程控制器的机型选择、输入输出地址分配、输入输出端接线图及可编程控制器梯形图程序设计。详细地分析了用可编程控制器控制镗床的工作过程。说明了可编程控制器控制取代传统继电器控制的方法, 使得镗床的可靠性和效率大为提高, 在工业上有广泛的应用前景。
关键词：机床、镗床、可编程控制器（PLC）
ABSTRACT
It is well known, our country is the biggest manufacturer of the world, hold the lifeline of the world manufacturing industry. Our country manufacturing industry equipment's innovation becomes more and more important, specially the Machine Tools equipment's innovation is restricting the developing of manufacturing industry. In recent years, the Machine Tools profession obtained great achievement.
The boring machine is a synthesis workability metal-cutting machine tool,it is one of precision work equipment and used quite universal in the cold processing, its craft scope is very broad, it is very important in the entire manufacturing industry. The T68 boring machines is the most universal used in our country Machine shop. The boring machines requires the very high accuracy in the processing process and needs very high request to control system. The traditional boring machines was controlled by relay, its electric appliance is quite complex, the reliability is bad, failure diagnosis and remove was very difficult.
For the electric circuit of tradition relay control system of boring machines is complex, its reliability is bad, failure diagnosis and remove was very difficult and so on. Proposed makes the transformation with the programmable controller to the T68 boring machines control system. Introduced the application of the Simens S7-200 series programmable controller (PLC) in the boring machines control system, introduced the hardware composition and the software design of the programmable controller to transform the T68 boring machines electric control system, including the programmable controller's type choice, the input and output allocation, the input and output-port wiring diagram and the trapezoidal chart programming of programmable controller, analyzed the control of boring machines work process with the programmable controller. Explained the method of programmable controller control replacing tradition black-white control, the reliability and efficiency of boring machines is enhanced greatly, it has widespread application prospect in the industry.
Key word: Machine tool, boring machines, programmable controller (PLC)
目 录
中文摘要 Ⅰ
ABSTRACT Ⅱ
1绪论 1
1.1 PLC的发展现状 1
1.1.1 PLC来源与发展 1
1.1.2 PLC的最新发展趋势 3
1.2镗床概述 5
1.2课题的意义 5
2系统方案的提出 6
2.1 控制系统的要求 6
2.2 系统方案 6
2.3 主要内容 6
3 PLC的介绍 8
3.1 PLC概述 8
3.2 PLC的基本工作原理 9
3.3 PLC主要功能 10
3.4 PLC主要特点 11
3.5 PLC应用场合 11
4 镗床电气系统及电气原理 12
4.1 镗床的概述 12
4.2 T68型卧式镗床电气控制线路 13
4.3 T68型卧式镗床电气控制线路的控制原理 13
4.3.1 主轴电动机M1的控制 13
4.3.2 主轴变速与机动进给变速控制 15
4.3.3 几种运动的选择 15
4.3.4 进给、快移电动机M2的控制 17
5 镗床控制系统的改造 18
5.1 了解情况 18
5.2 确定PLC的输入输出 20
5.2.1 PLC程序中I/O点的定义 20
5.2.2 PLC与现场器件连接接线图 21
5.3编制梯形图 22
5.4 根据梯形图写程序 23
6 梯形图、程序的分析 26
6.1 梯形图的分析 26
6.2.1 正、反转控制 27
6.2.2 高、低速转换控制 29
6.2.3 反接制动 29
6.2.4 主轴、进给变速控制 30
6.2.5 点动控制 32
6.2.6 几种运动的选择 33
6.2.7 进给、快速移动电动机的控制 35
6.2.8 联锁保护 35
6.2程序解读 36
7 结论 38
致谢 39
参考文献 40
20313字数
摘 要
众所周知，我国是世界制造大国，掌握着全世界制造业的命脉。我国制造业设备的革新变得越来越重要，特别是机床设备的革新对制造业的发展起着制约作用。机床行业近年来取得的巨大成就。
镗床作为一种具有综合加工性能的金属切削机床，是精加工设备之一，是冷加工中使用比较普遍的设备，其工艺范围很广，在整个制造业中占有很重要的地位。T68镗床是目前我国机械工厂中使用最为普遍的一种镗床。镗床在加工过程中有很高的精度要求，对控制系统的要求也很高。传统镗床多采用继电器控制，其电器比较复杂，可靠性差，故障诊断与排除困难。
针对传统继电接触控制的镗床存在电路复杂、可靠性差、故障诊断与排除困难等缺点, 提出了用可编程控制器对T68镗床控制系统进行改造。介绍了西门子S7-200 系列可编程控制器（PLC）在镗床控制系统中的应用, 给出了可编程控制器改造T68 镗床电气控制系统的硬件组成和软件设计, 其中包括可编程控制器的机型选择、输入输出地址分配、输入输出端接线图及可编程控制器梯形图程序设计。详细地分析了用可编程控制器控制镗床的工作过程。说明了可编程控制器控制取代传统继电器控制的方法, 使得镗床的可靠性和效率大为提高, 在工业上有广泛的应用前景。
关键词：机床、镗床、可编程控制器（PLC）
ABSTRACT
It is well known, our country is the biggest manufacturer of the world, hold the lifeline of the world manufacturing industry. Our country manufacturing industry equipment's innovation becomes more and more important, specially the Machine Tools equipment's innovation is restricting the developing of manufacturing industry. In recent years, the Machine Tools profession obtained great achievement.
The boring machine is a synthesis workability metal-cutting machine tool,it is one of precision work equipment and used quite universal in the cold processing, its craft scope is very broad, it is very important in the entire manufacturing industry. The T68 boring machines is the most universal used in our country Machine shop. The boring machines requires the very high accuracy in the processing process and needs very high request to control system. The traditional boring machines was controlled by relay, its electric appliance is quite complex, the reliability is bad, failure diagnosis and remove was very difficult.
For the electric circuit of tradition relay control system of boring machines is complex, its reliability is bad, failure diagnosis and remove was very difficult and so on. Proposed makes the transformation with the programmable controller to the T68 boring machines control system. Introduced the application of the Simens S7-200 series programmable controller (PLC) in the boring machines control system, introduced the hardware composition and the software design of the programmable controller to transform the T68 boring machines electric control system, including the programmable controller's type choice, the input and output allocation, the input and output-port wiring diagram and the trapezoidal chart programming of programmable controller, analyzed the control of boring machines work process with the programmable controller. Explained the method of programmable controller control replacing tradition black-white control, the reliability and efficiency of boring machines is enhanced greatly, it has widespread application prospect in the industry.
Key word: Machine tool, boring machines, programmable controller (PLC)
目 录
中文摘要 Ⅰ
ABSTRACT Ⅱ
1绪论 1
1.1 PLC的发展现状 1
1.1.1 PLC来源与发展 1
1.1.2 PLC的最新发展趋势 3
1.2镗床概述 5
1.2课题的意义 5
2系统方案的提出 6
2.1 控制系统的要求 6
2.2 系统方案 6
2.3 主要内容 6
3 PLC的介绍 8
3.1 PLC概述 8
3.2 PLC的基本工作原理 9
3.3 PLC主要功能 10
3.4 PLC主要特点 11
3.5 PLC应用场合 11
4 镗床电气系统及电气原理 12
4.1 镗床的概述 12
4.2 T68型卧式镗床电气控制线路 13
4.3 T68型卧式镗床电气控制线路的控制原理 13
4.3.1 主轴电动机M1的控制 13
4.3.2 主轴变速与机动进给变速控制 15
4.3.3 几种运动的选择 15
4.3.4 进给、快移电动机M2的控制 17
5 镗床控制系统的改造 18
5.1 了解情况 18
5.2 确定PLC的输入输出 20
5.2.1 PLC程序中I/O点的定义 20
5.2.2 PLC与现场器件连接接线图 21
5.3编制梯形图 22
5.4 根据梯形图写程序 23
6 梯形图、程序的分析 26
6.1 梯形图的分析 26
6.2.1 正、反转控制 27
6.2.2 高、低速转换控制 29
6.2.3 反接制动 29
6.2.4 主轴、进给变速控制 30
6.2.5 点动控制 32
6.2.6 几种运动的选择 33
6.2.7 进给、快速移动电动机的控制 35
6.2.8 联锁保护 35
6.2程序解读 36
7 结论 38
致谢 39
参考文献 40
