Imagem da capa

Vision system for detection of defects in the electrical connector of electric motors: test rig and algorithms

Electric motors are used in a great number of applications. These machines are mainly composed of a rotor and a stator. Regarding induction motors, the rate of defects in the stator manufacturing process is greater than in the rotor one, due to its higher complexity. To identify these faulty situati...

ver descrição completa

Principais autores: de Oliveira, Bernardo Cassimiro Fonseca, Flesch, Rodolfo César Costa, Pacheco, Antonio Luiz Schalata, Demay, Miguel Burg
Formato: Artigo
Idioma: Inglês
Publicado em: Universidade Tecnológica Federal do Paraná (UTFPR) 2017
Acesso em linha: http://periodicos.utfpr.edu.br/bjic/article/view/5372
Tags: Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
id peri-article-5372
recordtype ojs
spelling peri-article-53722022-10-19T17:34:38Z Vision system for detection of defects in the electrical connector of electric motors: test rig and algorithms de Oliveira, Bernardo Cassimiro Fonseca Flesch, Rodolfo César Costa Pacheco, Antonio Luiz Schalata Demay, Miguel Burg 3.04.02.05-0 Motores elétricos de indução; controle de qualidade; Processos de fabricação - Automação Electric motors are used in a great number of applications. These machines are mainly composed of a rotor and a stator. Regarding induction motors, the rate of defects in the stator manufacturing process is greater than in the rotor one, due to its higher complexity. To identify these faulty situations, the most common scenario is human operators performing inspections, but they are subjected to fatigue and lack of attention. This paper presents three redundant automatic vision systems and a mechanical test rig to inspect the force-induced disconnection of the stator power cables inside the electrical connector, a common defect of electric motor parts in assembly lines. These defects are typically not detected by electric tests, since in many situations the disconnection occurs after these tests, in operation, thus characterizing a field failure of the motor. A detailed description of each software routine for implementing the proposed inspection principles is presented.  The test rig components and its operation to evidence the defects are also herein described. A case study using 20 connectors of real motors was proposed for evaluating the developed system and the achieved results are discussed, showing that the system could correctly identify 100% of the defects. Universidade Tecnológica Federal do Paraná (UTFPR) CNPq Federal University of Santa Catarina, Department of Mechanical Engineering 2017-09-21 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf http://periodicos.utfpr.edu.br/bjic/article/view/5372 10.3895/jaic.v5n1.5372 Journal of Applied Instrumentation and Control; v. 5, n. 1 (2017); 34-42 Journal of Applied Instrumentation and Control; v. 5, n. 1 (2017); 34-42 2594-3553 10.3895/ijca.v5n1 eng http://periodicos.utfpr.edu.br/bjic/article/view/5372/4446 Direitos autorais 2017 CC-BY http://creativecommons.org/licenses/by/4.0
institution Universidade Tecnológica Federal do Paraná
collection PERI
language Inglês
format Artigo
author de Oliveira, Bernardo Cassimiro Fonseca
Flesch, Rodolfo César Costa
Pacheco, Antonio Luiz Schalata
Demay, Miguel Burg
spellingShingle de Oliveira, Bernardo Cassimiro Fonseca
Flesch, Rodolfo César Costa
Pacheco, Antonio Luiz Schalata
Demay, Miguel Burg
Vision system for detection of defects in the electrical connector of electric motors: test rig and algorithms
author_sort de Oliveira, Bernardo Cassimiro Fonseca
title Vision system for detection of defects in the electrical connector of electric motors: test rig and algorithms
title_short Vision system for detection of defects in the electrical connector of electric motors: test rig and algorithms
title_full Vision system for detection of defects in the electrical connector of electric motors: test rig and algorithms
title_fullStr Vision system for detection of defects in the electrical connector of electric motors: test rig and algorithms
title_full_unstemmed Vision system for detection of defects in the electrical connector of electric motors: test rig and algorithms
title_sort vision system for detection of defects in the electrical connector of electric motors: test rig and algorithms
description Electric motors are used in a great number of applications. These machines are mainly composed of a rotor and a stator. Regarding induction motors, the rate of defects in the stator manufacturing process is greater than in the rotor one, due to its higher complexity. To identify these faulty situations, the most common scenario is human operators performing inspections, but they are subjected to fatigue and lack of attention. This paper presents three redundant automatic vision systems and a mechanical test rig to inspect the force-induced disconnection of the stator power cables inside the electrical connector, a common defect of electric motor parts in assembly lines. These defects are typically not detected by electric tests, since in many situations the disconnection occurs after these tests, in operation, thus characterizing a field failure of the motor. A detailed description of each software routine for implementing the proposed inspection principles is presented.  The test rig components and its operation to evidence the defects are also herein described. A case study using 20 connectors of real motors was proposed for evaluating the developed system and the achieved results are discussed, showing that the system could correctly identify 100% of the defects.
publisher Universidade Tecnológica Federal do Paraná (UTFPR)
publishDate 2017
url http://periodicos.utfpr.edu.br/bjic/article/view/5372
_version_ 1760450519822761984
score 10,966579

Registros relacionados