Abstract

A two-coordinate welding machine has been considered in this paper. Similar equipment is used to obtain welds on various elements of high-quality metal structures. The main disadvantage of the existing equipment is that the work with this machine is currently manual, which is quite dangerous and monotonous during operation. Moreover, a hydraulic drive is used as the main drive of the system. Substitution of an electric drive for the hydraulic drive of a two-coordinate welding machine to increase the efficiency of the whole system has been justified. An automated electric drive for a two-coordinate machine for welding of embedded parts, which is controlled with a use of a programmable logic controller, has been developed. The electric drive of the object has been designed. The necessary elements of the developed automation system have been selected. An algorithm that makes it possible to automate the welding process of embedded parts has been developed based on the technological process. The algorithm provides the necessary security measures by means of carrying out self-diagnostics at the startup stage. To check the performance of the developed algorithm, an automated electric drive was simulated using the Matlab Simulink software. The system contains two internal and three external circuits that control the required parameters: speed, current, torque, flux linkage, and force. The dynamic characteristics of the presented parameters, which confirm the operability of the developed automated electric drive system, have been obtained. Economic calculations of the automation system suggested for implementation has been carried out. The total cost of modernization will be about 55 thousand rubles with a payback period of about one year.

中文翻译：

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二坐标焊机控制系统的自动化电气驱动

摘要

本文考虑了一种二坐标焊接机。类似的设备用于在高质量金属结构的各种元件上获得焊缝。现有设备的主要缺点是目前该机的工作是人工操作，操作时相当危险和单调。此外，液压驱动用作系统的主要驱动。用电力驱动代替双坐标焊接机的液压驱动以提高整个系统的效率是合理的。开发了一种采用可编程逻辑控制器控制的用于焊接嵌入式零件的二坐标机器的自动电驱动器。已经设计了物体的电力驱动。已选择开发的自动化系统的必要元素。基于该工艺流程开发了一种算法，可以使嵌入式零件的焊接过程自动化。该算法通过在启动阶段进行自诊断来提供必要的安全措施。为了检查所开发算法的性能，使用 Matlab Simulink 软件对自动电力驱动进行了仿真。该系统包含两个内部电路和三个外部电路，用于控制所需的参数：速度、电流、扭矩、磁链和力。已经获得了所呈现参数的动态特性，这些参数证实了所开发的自动电驱动系统的可操作性。已对建议实施的自动化系统进行了经济计算。