基于PLC的电镀生产线监控系统的应用

发布时间：2018-03-24 19:49

本文选题：电镀生产线　切入点：监控系统　出处：《西安石油大学》2015年硕士论文

【摘要】：电镀是一种比较重要的工艺,产品经过电镀工艺处理后,不仅产品质量获得提高,产品性能也会大幅度提高,同时延长了产品的使用时间。电镀过程中各种参数的控制将会影响电镀是否能顺利完成,是否得到高质量的镀件,因此,设计一个可靠性高,稳定性好的监控系统对电镀生产线进行监控在电镀生产过程中十分必要。本文以电镀生产线监控系统设计为目标,首先分析了原有生产线存在的问题,针对系统存在的问题,提出以西门子S7-200 PLC作为主控单元,结合任务分发计算机、上位监控计算机,现场操作平台西门子触摸屏设计了电镀生产线监控系统,依据生产工艺进行组态,设计系统硬件和软件,实现生产过程实时监控。为实现监控系统对温度的精确控制,本文对电镀恒温控制系统进行了研究,通过分析电镀工艺的温度特性,提出采用模糊算法对温度值进行整定,使用PLC内部的PID模块进行调节,实现了恒温控制,并通过MATLAB软件仿真验证模糊PID算法的可靠性和优越性。通过电镀生产线实际运行表明,监控系统控制效果良好,稳定性高,能够较好地实现恒温控制效果,完全可以满足实际生产的需求,提高了生产效率和产品质量,验证了设计方案的可行性。
[Abstract]:Electroplating is a relatively important process. After electroplating, not only the quality of the products is improved, but also the properties of the products are greatly improved. At the same time, the use time of the product is prolonged. The control of various parameters in the electroplating process will affect whether the electroplating can be completed smoothly and whether the plating parts can be obtained with high quality. Therefore, the design has high reliability. It is necessary to monitor the electroplating production line with a stable monitoring system. This paper aims at the design of the electroplating production line monitoring system, and analyzes the existing problems of the original production line, aiming at the problems in the system. Taking Siemens S7-200 PLC as the main control unit, combining the task distribution computer, the upper monitor computer and the field operation platform Siemens touch screen, the electroplating production line monitoring system is designed and configured according to the production process. The hardware and software of the system are designed to realize the real-time monitoring of the production process. In order to realize the precise control of the temperature of the monitoring system, the constant temperature control system of electroplating is studied in this paper, and the temperature characteristics of the electroplating process are analyzed. The fuzzy algorithm is used to set the temperature value and the PID module inside PLC is used to realize the constant temperature control. The reliability and superiority of the fuzzy PID algorithm are verified by MATLAB software simulation. The actual operation of the electroplating production line shows that the fuzzy PID algorithm is reliable and superior. The monitoring system has good control effect and high stability. It can realize the effect of constant temperature control. It can completely meet the demand of actual production, improve the production efficiency and product quality, and verify the feasibility of the design scheme.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ153;TP277

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