Análise de falhas e redimensionamento das molas do alimentador vibratório base 390

Abstract

Vibrating feeders are essential components in automated processes that require the feeding of previously oriented parts. To do so, it must provide reliability and low maintenance to the system, as they are often inserted in autonomous manufacturing cells. The case studied in this work seeks to remedy the failures that occur in the springs of vibrating feeders. The springs are responsible for defining and limiting the movement that is transmitted to the components, where a failure results in the imbalance of the movement of the parts, causing loss of performance, mechanical shock of the internal components, generating noise in the work environment and increasing costs of corrective maintenance. In this sense, the present work addresses the analysis of failures and uses finite element modeling tools to understand the adapted adaptations and resize the springs, proposing a solution to increase the mechanical resistance of this component, aiming at infinite life. The von Mises stress analyzes obtained values above the corrected limit of resistance to fatigue and the modal analysis presented natural frequencies close to the electromagnet learning frequency, establishing conditions for the occurrence of failures. The redesign of the spring showed a 32% reduction in the tension value, remaining below the value of the corrected resistance and fatigue limit, characterizing infinite life, and obtained an increase in the distance between the natural and excitation frequencies, avoiding the occurrence of possible modes of symptoms . However, there was a decrease in the titanic resistance of the set by 21.26%, which will be evaluated in new development prototypes. [resumo fornecido pelo autor]