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Abstract(s)
A indústria automóvel é dos setores industriais mais exigentes do mercado mundial. Esta exigência advém do elevado nível de competitividade existente no setor, o que gera a necessidade da procura constante de um maior grau de eficiência, e uma maior produtividade e qualidade, para que se consiga continuar sempre a responder às exigências dos clientes. Num setor onde os principais pilares são a qualidade e a flexibilidade, é necessário um especial cuidado com produtividade, pois esta muitas vezes acaba por ser sacrificada para que se possa continuar a garantir a qualidade. Assim surge a necessidade de inovar nos processos de produção, o que pode ser feito através do aumento do grau de automatização dos processos de fabrico. O elevado grau de automatização reduz a necessidade de mão-de-obra, que é um recurso que não garante sempre o mesmo nível de qualidade, nem de custo, uma vez que a produtividade da mão-de-obra é variável. Este trabalho teve como objetivo criar um novo conceito de equipamento capaz de produzir arames dobrados tridimensionalmente para a estrutura de bancos de carros. Neste sentido, foi criado um equipamento que recorre a carros deslizantes, com motores elétricos que são capazes de realizar a dobragem e a rotação axial dos arames. Além disto, numa zona inicial, o equipamento é capaz de realizar o desbobinamento, o endireitamento e corte do arame a ser dobrado. Através do conceito desenvolvido foi possível remover a necessidade de um equipamento que servia unicamente para endireitar e cortar o arame, bem como a necessidade de alguém que faça o transporte dos arames cortados para o equipamento que os dobraria. Conseguiu-se ainda uma fonte energética mais eficiente do que o utilizado no equipamento inicial.
The automotive industry is one of the most demanding industrial sectors in the world market. This requirement comes from the high level of competitiveness existing in the sector, which generates the need to constantly seek a greater degree of efficiency, greater productivity, and quality, so that can always continue to respond to the demands of customers. In an industry where the main pillars are quality and flexibility, special care is needed with productivity, as it often ends up being sacrificed to guarantee quality assurance. Thus, the need arises to innovate in production processes, which can be done by increasing the degree of automation of manufacturing processes. The high degree of automation reduces the need for labor, which is a resource that cannot always guarantee the same level of quality or cost, as labor productivity varies. This work aimed to create a new concept of equipment capable of producing threedimensionally bent wires. In this sense, un equipment was created that uses sliding carriages, with electric motors that are capable of bending and axial rotation of the wires. Furthermore, in an initial zone, the equipment is capable of unwinding, straightening, and cutting the wire to be bent. Through the developed concept, it was possible to remove the need for equipment that served only to straighten and cut the wire, as well as the need for someone to transport the cut wires to the equipment that would bend them. It was also possible to use the energy resource more efficiently than that used in the initial equipment.
The automotive industry is one of the most demanding industrial sectors in the world market. This requirement comes from the high level of competitiveness existing in the sector, which generates the need to constantly seek a greater degree of efficiency, greater productivity, and quality, so that can always continue to respond to the demands of customers. In an industry where the main pillars are quality and flexibility, special care is needed with productivity, as it often ends up being sacrificed to guarantee quality assurance. Thus, the need arises to innovate in production processes, which can be done by increasing the degree of automation of manufacturing processes. The high degree of automation reduces the need for labor, which is a resource that cannot always guarantee the same level of quality or cost, as labor productivity varies. This work aimed to create a new concept of equipment capable of producing threedimensionally bent wires. In this sense, un equipment was created that uses sliding carriages, with electric motors that are capable of bending and axial rotation of the wires. Furthermore, in an initial zone, the equipment is capable of unwinding, straightening, and cutting the wire to be bent. Through the developed concept, it was possible to remove the need for equipment that served only to straighten and cut the wire, as well as the need for someone to transport the cut wires to the equipment that would bend them. It was also possible to use the energy resource more efficiently than that used in the initial equipment.
Description
Keywords
Indústria Automóvel Arames estruturais de bancos Equipamento de conformação de arame Produtividade Projeto mecânico Automotive industry Structural seat wires Wire forming equipment Productivity Mechanical design