Diseño y construcción de un módulo de control para una soldadura de resistencia por puntos.

The present technological proposal consists of the development of a control module for the Spotmatic International brand resistance spot welder located at the Technical University of Cotopaxi through the implementation of easily available electronic elements for the generation of traction-resistant welds. It is important to indicate that the previous control of the machine was unstable, which caused high currents to pass through the tracks of the main board and through the power control element, causing irreparable damage. To achieve better control of the welding parameters, the implementation of a new control card was resolved that contains several electronic elements, which are: an NTC thermistor type temperature sensor; a voltage sensor, optocouplers, a thyristor module, a programmable microcontroller and finally potentiometers that vary the power delivered to the transformer and the welding time depending on the thickness to be welded, in addition to the parameterized values of temperature, welding time, applied power and effective voltage can be displayed through an HMI interface. Obtaining as a result of the tensile tests carried out, with a thickness of 0.4 (mm) the material was separated at a force of 1983.91 (N) while with a thickness of 1.5 (mm) the material was detached with a force of 10110.81 (N), in addition for metal sheets with thicknesses of 0.4 (mm) the applied power is 50 (%) with a welding time of 100 (ms) while, for thicknesses of 1.5 (mm) its power will be set at 95 (%) with a welding time of 300 (ms).

• Κύριος συγγραφέας: Melendres Peña, Isabel Noemi (author)
• Άλλοι συγγραφείς: Moya Rodríguez, Jhonny Paúl (author)
• Μορφή: bachelorThesis
• Γλώσσα: spa
• Έκδοση: 2024
• Θέματα: MÁQUINA SOLDADORA; CONTROL; MICROCONTROLADOR; SENSOR; ELECTROMECANICA
• Διαθέσιμο Online: http://repositorio.utc.edu.ec/handle/27000/12172