三相次级整流单面凸焊数控设备的研制

发布时间：2018-03-13 15:36

本文选题：单面凸焊　切入点：伺服传动　出处：《南昌航空大学》2015年硕士论文　论文类型：学位论文

【摘要】：目前,电阻焊技术已然成为现代工业生产中不可或缺的部分,而电阻凸焊作为电阻焊中一种重要的焊接工艺方法,在航空航天、汽车工业以及电子零部件的生产中,发挥着难以替代的重要作用。随着计算机技术、自动控制技术和新型传动技术的飞速发展,实现节能、高效的自动化凸焊将成为未来电阻凸焊重要的发展方向。本文以钢网、钢背为电阻凸焊的研究对象,为满足汽车刹车片焊接对优质、高效、节能的要求,在研制单面凸焊数控设备方面,进行了深入的研究。本课题以STM32F103C8T6单片机为控制器核心,采用模块化的设计思路来对单面凸焊数控系统进行设计。首先在单面凸焊数控系统的人机交互方面,本文采用的是触摸屏的人机交互方式,设计单面凸焊数控系统的人机交互界面以及主控芯片与迪文触摸屏之间的通讯电路,根据迪文触摸屏HMI指令集编写了触摸屏控制文本显示程序,采用触摸屏的暂存缓冲区数据显示折线图实现焊接电流曲线实时显示;其次,为了实现单面凸焊工件自动进给的功能,对单面凸焊进给系统的伺服传动机构进行设计计算,完成了进给系统中伺服电机和伺服驱动器的选型,通过分析伺服驱动器的特点以及单面凸焊数控系统的要求,开发出了伺服驱动进给系统并对其进行了相应的软件设计;最后根据STM32F103C8T6主控芯片的特点设计了单面凸焊硬件控制系统和软件控制系统,引入了II-μC/OS实时操作系统以实现多任务在线实时操作,并给出了II-μC/OS实时操作系统在移植的过程中需要修改的代码。本文设计了一套基于伺服驱动控制系统及人机交互系统的单面凸焊数控设备,该设备具有精度高,响应速度快等特点,为最终实现较高生产效率及较好的焊接质量提供了有效的技术支持。
[Abstract]:At present, resistance welding technology has become an indispensable part of modern industrial production. As an important welding process in resistance welding, resistance convex welding is widely used in aerospace, automobile industry and electronic parts production. With the rapid development of computer technology, automatic control technology and new transmission technology, the realization of energy-saving and efficient automatic convex welding will become an important development direction of resistance convex welding in the future. The steel back is the research object of resistance convex welding. In order to meet the requirements of automobile brake welding for high quality, high efficiency and energy saving, a deep research has been carried out in the development of NC equipment for single side convex welding. The STM32F103C8T6 single chip microcomputer is taken as the core of the controller. The modular design idea is adopted to design the single-sided convex welding numerical control system. Firstly, in the aspect of man-machine interaction of single-side convex welding numerical control system, this paper adopts the man-machine interaction mode of touch screen. The man-machine interface of single-side convex welding NC system and the communication circuit between the main control chip and the Devon touch screen are designed. According to the HMI instruction set of the touch screen, the display program of the touch screen control text is compiled. The curve of welding current is displayed in real time by using the data of temporary buffer of touch screen. Secondly, in order to realize the function of automatic feeding of single side convex welding workpiece, the servo drive mechanism of single side convex welding feed system is designed and calculated. The servo motor and servo driver are selected in the feed system. By analyzing the characteristics of the servo driver and the requirements of the single-side convex welding numerical control system, the servo drive feed system is developed and the corresponding software is designed. Finally, according to the characteristics of STM32F103C8T6 main control chip, the hardware control system and software control system of single side convex welding are designed, and the II- 渭 C / OS real-time operating system is introduced to realize the multitask on-line real-time operation. The code needed to be modified in the process of transplanting II- 渭 C / OS real time operating system is given. In this paper, a single side convex welding NC equipment based on servo drive control system and man-machine interaction system is designed, which has high precision. The rapid response speed provides an effective technical support for the final realization of higher production efficiency and better welding quality.
【学位授予单位】：南昌航空大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TG409

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