Automatización para el registro de tiempos en el balance de línea de soldadura para la producción del automóvil Great Wall M4, en la Empresa CIAUTO Ambato

Abstract

The aim of this work is the implementation of an automation system for time recording in the welding line balance for the production of the Great Wall M4 automobile, in the company CIAUTO Ambato; applying production control charts in the automotive workshop, in order to give greater fluidity in the production process and ANDON systems for delay alerts. The study starts from the balance of the production line, carried out with the traditional method of data collection that manages the automotive workshop, by means of structured scientific observation. Furthermore, a time control was carried out on the production line of the Great Wall M4 automobile to obtain standard times and control graphs. Subsequently, the ANDON system was designed to detect delays in production. The time recording is generated by electrical pulses controlled by a LOGO PLC at each of the workstations, capturing the operating time for line control at the end of daily production, downloading the data recorded by the system and sending a web HMI display in real time to know the status of production. During the traditional time collection process, a takt time of 0h: 33min:28s was obtained, an increase in productivity of 12% based on the number of total units produced per day, improving quality by 1.19%, with respect to the traditional time collection method, by adding an operator to the SM4-1 and SM4-2 stations. The benefits that the automotive workshop obtains with the installation of this system are: fast development of line balances, information on the current status of production and balancing workloads by implementing the ANDON System. In addition, it is recommended to maintain optimal system conditions: voltage and current, because an overload or change in these variables directly affect the controller by deteriorating its inputs or failures in the reading of the system.