折板机控制系统设计

机械论文编号:JX753  论文字数:12546.页数:37   附CAD图

 目 录
 第一章 绪论 1
1.1 选题的背景与意义 1
1.2 折板机的发展概况 1
1.3 研究内容 2
 第二章  折板机的工作原理及机械结构 3
2.1 折板机的工作对象 3
2.2 折板机的工作要求 3
2.3 折板机的机械结构及其组成 3
2.4 折板机的工作原理和运动原理 3
 第三章 控制电动机选择计算 5
3.1 电机的选择 5
3.1.1 伺服电动机 5
3.1.2 步进电动机 6
3.1.3 电动机控制方式的基本形式 10
3.2 步进电机的选择计算 11
3.3步进电动机的控制选择 15
 第四章 气动系统设计 17
4.1 明确设计依据与工作要求 17
4.2气动回路设计 19
4.3气缸的尺寸计算和选择 20
4.4控制元件的选择 21
4.5 气泵的选择 22
 第五章 折板机的控制电路及设备 24
5.1 可编程序控制器简介 24
5.2 PLC与编程器的选择 24
5.2.1 PLC的选择 24
5.2.2 编程器的选择 26
5.3输入输出回路的设计 26
5.4编写程序 27
 第六章 总结 31
 参考文献 32
 致 谢 33

摘     要
 本课题是研究自动化技术在生产上的应用。本文以PLC应用为例，具体设计了折板机的气动系统、电路控制系统，使折板机的工作过程实现自动化生产，以提高线路板折板的生产效率，降低生产成本。
 本文首先阐述折板机的发展状况，目前我国的线路板折断方式还是人工进行的，这种方式成本居高不下，效率难以进一步提高，因此企业迫切需求一台能够自动完成折板动作的机器，并提出了本文的研究内容；接着分析了折板机的机械结构及其组成部分，提出它的运动方式、工作原理，它的动力由气缸和电机来提供；而驱动电机选用步进电机，它由驱动器驱动，转速可通过脉冲频率来调节；然后按照折板机的工作要求，进行气动回路的设计，并经过压力与流量的计算，选择合适的气动元件；最后根据PLC可靠性高、适应性强、编程容易、设计安装调试工作量少的特点，选择运用PLC系统设计折板机的控制系统，并且绘制了相应的控制电路，还根据控制流程编制了相应的程序。本折板机的设计可以说不但弥补了线路板折板方面的不足，推动了电子体温计产业的发展，而且也是自动化技术在工业中进一步运用的体现。
 
 关键词：折板机  PLC  步进电机  气动
 The Design of The Control System About Folding Machine
 
 Abstract
 This topic is researching the application in the production with the automation technology. This article is take the application of PLC as an example, specifically designed of a pneumatic system, circuit control system, to achieve the automated production process of the folding machine, improve the production efficiency and reduce production costs about the circuit board folding .
 In this article, fist, it’s told the development of the folding machine. At present, the folding of the circuit board is by the handwork, and in this way, the high cost is difficult to reduce, the efficiency is difficult to improve. So the companies urgently need a machine with folding circuit board automatically, and put forward the research of this article; Then, it’s analysised the mechanical structure and components of the folding machine, and putted away the movement and working principle of the machine. Its dynamic motor selected the stepper motor which drives by the driver and speed can be regulated by the pulse frequency; And then, according to the work demand of the folding machines, designed the pneumatic circuit, and after the calculation of pressure and flow, choosed a suitable pneumatic components; Finally, according to the characteristics of high reliability, adaptability, easily programming, simply designing、installing and debugging about PLC, select to design the control system of the folding machine with PLC system, and draw the corresponding control circuit. dwg, programmed accord to the control process. The design of folding machine can be to that not only made up the deficiencies about circuit board folding, and promoted the development of the electronic thermometer industry, but also it’s the further embodiment about the application of automation technology in industry.
Keywords: Folding machine   PLC   Stepping Motor   Pneumatic