Recuperación de una máquina de soldadura por resistencia SPA-10
Fecha
2014-07-20
Autores
Garcia Hernández, Yadrian
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Editor
Universidad Central "Marta Abreu" de Las Villas
Resumen
Este trabajo surge con la necesidad de reparar una máquina de soldadura por resistencia utilizada en la producción de parrillas de refrigerador en el taller M1 del INPUD debido a que la producción se ha visto afectada por la pérdida de funciones importantes de la máquina. Como objetivo principal se establece la reparación total o parcial de la máquina de soldadura por resistencia SPA-10. El
equipo se encuentra en un estado de sobre explotación avanzado presentando problemas en los circuitos de control de corriente y tiempo de los diferentes componentes de la secuencia de soldadura, encontrándose operando ineficientemente los sistemas hidráulico y neumático, necesitándose diagnosticar las fallas y reparar los sistemas dañados. La máquina recuperada a partir del
diseño y la implementación de un nuevo circuito de control de temporización y la reparación del circuito de control de corriente, luego de aplicarse el plan de mantenimiento previsto; permitió su empleo en una serie de producción de 1500 parrillas, obteniéndose un grado aceptable de calidad según normas establecidas y respetando las especificaciones de explotación del fabricante. Fue corroborada
la tecnología de soldadura empleada por los operarios mediante el análisis de especificaciones de la literatura comprobándose mediante pruebas de calidad normadas, pruebas de resistencia a los puntos de soldadura y análisis metalográfico la obtención de buenas propiedades mecánicas de la unión. En las condiciones actuales de producción de la Empresa no es económicamente aconsejable el remplazo de la máquina de soldadura por resistencia SPA-10 por una nueva. La misma fue recuperada empleando medios adquiridos en el mercado nacional, lo que justifica la factibilidad de acometer la reparación del equipo.
This work arises with the necessity of repairing a welding machine for resistance used in the production of refrigerator grills in the shop M1 of the INPUD because the production has been affected by the loss of important functions of the machine. As main objective the total or partial repair of the welding machine settles down for resistance SPA-10. The team is in a state of on advanced exploitation presenting problems in the circuits of current control and time of the different components of the welding sequence, being operating the hydraulic and pneumatic systems inefficiently, needing to diagnose you the flaws and to repair the damaged systems. The machine recovered starting from the design and the implementation of a new circuit of temporization control and the repair of the circuit of current control, after being applied the plan of foreseen maintenance; it allowed their employment in a series of production of 1500 grills, being obtained an acceptable degree of quality according to established norms and respecting the specifications of the maker's exploitation. The welding technology used by the operatives by means of the analysis of specifications of the literature being proven by means of tests of quality nomads was corroborated; resistance tests to the welding points and analysis metallographic the obtaining of good mechanical properties of the union. Under the current conditions of production of the Company it is not economically advisable the replacement of the welding machine for resistance SPA-10 for a new one. The same one was recovered using means acquired in the national market, what justifies the feasibility of attacking the repair of the team.
This work arises with the necessity of repairing a welding machine for resistance used in the production of refrigerator grills in the shop M1 of the INPUD because the production has been affected by the loss of important functions of the machine. As main objective the total or partial repair of the welding machine settles down for resistance SPA-10. The team is in a state of on advanced exploitation presenting problems in the circuits of current control and time of the different components of the welding sequence, being operating the hydraulic and pneumatic systems inefficiently, needing to diagnose you the flaws and to repair the damaged systems. The machine recovered starting from the design and the implementation of a new circuit of temporization control and the repair of the circuit of current control, after being applied the plan of foreseen maintenance; it allowed their employment in a series of production of 1500 grills, being obtained an acceptable degree of quality according to established norms and respecting the specifications of the maker's exploitation. The welding technology used by the operatives by means of the analysis of specifications of the literature being proven by means of tests of quality nomads was corroborated; resistance tests to the welding points and analysis metallographic the obtaining of good mechanical properties of the union. Under the current conditions of production of the Company it is not economically advisable the replacement of the welding machine for resistance SPA-10 for a new one. The same one was recovered using means acquired in the national market, what justifies the feasibility of attacking the repair of the team.
Descripción
Palabras clave
Máquina de Soldadura, Resistencia SPA-10, Parrillas de Refrigerador