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Advisor(s)
Abstract(s)
Nos sistemas de fabrico, a flexibilidade é um dos requisitos fundamentais nos processos de
produção para as empresas alcançarem uma capacidade de resposta diversificada face à
variedade de produtos requeridos no mercado atual. As Células Flexíveis de Fabrico (CFF)
são atualmente dos sistemas de produção mais sofisticados para produzir uma grande
variedade de produtos, sem necessitarem da intervenção humana por longos períodos de
tempo. A flexibilidade destes sistemas resulta da utilização de autómatos e computadores,
para controlar e integrar estes processos de produção.
O presente trabalho teve como objetivo desenvolver e melhorar a CFF que se encontra
instalada na Escola Superior de Tecnologia e Gestão de Viseu (ESTGV). No estudo da CFF
foram desenvolvidas várias ferramentas de software e hardware para integrar e controlar todos
os equipamentos de automação da célula, nomeadamente, os robôs industriais e as máquinas
ferramenta de Controlo Numérico Computorizado (CNC). Nas ferramentas desenvolvidas
implementou-se um sistema de tolerância a falhas e avarias, para garantir mais autonomia à
célula e assim diminuir a intervenção humana. Foram também implementados sistemas de
alarmes para a deteção e registo de intrusões e falhas ocorridas na CFF.
Desenvolveu-se uma página web com funções de Human Machine Interface (HMI) que
possibilita o controlo e a monitorização em tempo real da CFF. Esta página permite verificar
o desempenho de cada processo, os alarmes e avisos registados durante a fase de produção da
célula. Também permite efetuar operações de controlo de produção e manutenção.
Por último, para aumentar a flexibilidade da célula, desenvolveu-se uma ferramenta de
software que permite o envio de mensagens de texto para um telemóvel, sempre que ocorrem
falhas ou avarias na CFF.
ABSTRACT: In manufacturing systems, flexibility is one of the fundamental requirements in production processes for companies to achieve a diversified capacity of answer, regarding the variety of products required by atual market. The Flexible Manufacturing Cells (FMC) are presently the most sophisticated production systems to produce a wide range of products without need of human intervention during long periods of time. The flexibility of these systems results from the use of logic controllers and computers to control and integrate these production processes. This study aimed to develop and improve the FMC which is installed in the School of Technology and Management Viseu (ESTGV). On the FMC study have been developed several software and hardware tools to integrate and control all automation equipment of the cell, specially the industrial robots and Computer Numerical Control (CNC) machine tools. In developed tools was implemented a system of fail tolerance and breakdowns to ensure more autonomy to the cell and thereby reduce human intervention. Alarm systems have also been implemented for the detection and registration of intrusion and failure occurred in the FMC. A web page with functions of Human Machine Interface (HMI) was developed which enables control and real time monitoring of FMC. This page allows to check the performance of each process, alarms and warnings logged during the cell production. Also allows to perform control operations of production and maintenance. Finally, to increase the flexibility of the cell, was developed a software tool, which allows text messages to be send to a mobile phone, when failures or warnings happen on the FMC.
ABSTRACT: In manufacturing systems, flexibility is one of the fundamental requirements in production processes for companies to achieve a diversified capacity of answer, regarding the variety of products required by atual market. The Flexible Manufacturing Cells (FMC) are presently the most sophisticated production systems to produce a wide range of products without need of human intervention during long periods of time. The flexibility of these systems results from the use of logic controllers and computers to control and integrate these production processes. This study aimed to develop and improve the FMC which is installed in the School of Technology and Management Viseu (ESTGV). On the FMC study have been developed several software and hardware tools to integrate and control all automation equipment of the cell, specially the industrial robots and Computer Numerical Control (CNC) machine tools. In developed tools was implemented a system of fail tolerance and breakdowns to ensure more autonomy to the cell and thereby reduce human intervention. Alarm systems have also been implemented for the detection and registration of intrusion and failure occurred in the FMC. A web page with functions of Human Machine Interface (HMI) was developed which enables control and real time monitoring of FMC. This page allows to check the performance of each process, alarms and warnings logged during the cell production. Also allows to perform control operations of production and maintenance. Finally, to increase the flexibility of the cell, was developed a software tool, which allows text messages to be send to a mobile phone, when failures or warnings happen on the FMC.
Description
Keywords
Célula Flexível de Fabrico Controlo Numérico Computorizado Interface Homem-Máquina Robótica Automação Industrial Controlo Monitorização