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Desenvolvimento e validação de equipamento automático de acompanhamento de quinagem
| Name: | Description: | Size: | Format: | |
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| 23.62 MB | Adobe PDF |
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Abstract(s)
A indústria metalomecânica assume um papel determinante na economia nacional,
destacando-se como um setor impulsionador da inovação e da produtividade industrial. Entre
os diversos processos de conformação de metais, a quinagem de chapas metálicas revela-se
essencial, pela sua capacidade de produzir dobras com elevada precisão e robustez estrutural.
No entanto, a qualidade da quinagem depende não apenas do desempenho da quinadora, mas
também da correta estabilização da chapa durante o processo. Neste contexto, os
acompanhadores de quinagem surgem como equipamentos auxiliares fundamentais,
concebidos para acompanhar o movimento ascendente da chapa, prevenir deformações
indesejadas e garantir a precisão do ângulo obtido. A sua aplicação permite uma melhoria
significativa na eficiência e na repetibilidade das operações, pelo que este equipamento se
torna uma resposta concreta às exigências crescentes de qualidade, segurança e produtividade
na indústria. A presente dissertação teve como principal objetivo o desenvolvimento de um
novo modelo de acompanhador de quinagem, capaz de substituir o equipamento atualmente
utilizado na empresa. Procurou-se conceber uma solução robusta e funcional que
acompanhasse de forma precisa o movimento natural da chapa durante a operação de
quinagem, o que garante a segurança do operador e a integridade do material. Para tal,
integraram-se conceitos de projeto mecânico, ferramentas CAD, metodologias de
dimensionamento estrutural e cinemático, bem como a seleção criteriosa de materiais e
processos de fabrico. Adicionalmente, procedeu-se à análise do sistema de acionamento, à
estimativa de custos e à comparação da solução proposta com equipamentos concorrentes
existentes no mercado. Este trabalho pretendeu ainda reforçar o conhecimento técnico na área
dos dispositivos auxiliares de quinagem, ao identificar tendências tecnológicas e propor uma
solução viável e otimizada. Como resultado, o acompanhador de quinagem desenvolvido
cumpre integralmente os requisitos e limitações definidos, e demonstra elevada funcionalidade
e desempenho. A solução apresentada revela-se economicamente mais vantajosa do que o
equipamento atualmente em uso, sem comprometer a fiabilidade e a precisão do processo.
Desta forma, todos os objetivos estabelecidos foram plenamente atingidos, de modo a validar
a proposta como uma alternativa eficaz e competitiva para aplicação industrial.
The metalworking industry plays a decisive role in the national economy, standing out as a sector that drives innovation and industrial productivity. Among the various metal forming processes, sheet metal bending is essential due to its ability to produce bends with high precision and structural strength. However, the bending quality depends not only on the performance of the bending machine, but also on the correct stabilisation of the sheet during the process. In this context, sheet followers are essential auxiliary equipment, designed to accompany the upward movement of the sheet, prevent unwanted deformations and ensure the accuracy of the angle obtained. Their application allows for a significant improvement in the efficiency and repeatability of operations, making this equipment a concrete response to the growing demands for quality, safety, and productivity in the industry. The main objective of this dissertation was to develop a new sheet follower model, capable of replacing the equipment currently used in the company. The aim was to design a robust and functional solution that would accurately follow the natural movement of the sheet metal during the bending operation, ensuring operator safety and material integrity. To this end, mechanical design concepts, CAD tools, and structural and kinematic dimensioning methodologies were integrated, as well as the careful selection of materials and manufacturing processes. In addition, the drive system was analysed, costs were estimated, and the proposed solution was compared with competing equipment on the market. This work also aimed to reinforce technical knowledge in the area of auxiliary tilting devices by identifying technological trends and proposing a viable and optimised solution. As a result, the developed bending monitor fully complies with the defined requirements and limitations, and demonstrates high functionality and performance. The solution presented is economically more advantageous than the equipment currently in use, without compromising the reliability and accuracy of the process. Thus, all the established objectives were fully achieved, validating the proposal as an effective and competitive alternative for industrial application.
The metalworking industry plays a decisive role in the national economy, standing out as a sector that drives innovation and industrial productivity. Among the various metal forming processes, sheet metal bending is essential due to its ability to produce bends with high precision and structural strength. However, the bending quality depends not only on the performance of the bending machine, but also on the correct stabilisation of the sheet during the process. In this context, sheet followers are essential auxiliary equipment, designed to accompany the upward movement of the sheet, prevent unwanted deformations and ensure the accuracy of the angle obtained. Their application allows for a significant improvement in the efficiency and repeatability of operations, making this equipment a concrete response to the growing demands for quality, safety, and productivity in the industry. The main objective of this dissertation was to develop a new sheet follower model, capable of replacing the equipment currently used in the company. The aim was to design a robust and functional solution that would accurately follow the natural movement of the sheet metal during the bending operation, ensuring operator safety and material integrity. To this end, mechanical design concepts, CAD tools, and structural and kinematic dimensioning methodologies were integrated, as well as the careful selection of materials and manufacturing processes. In addition, the drive system was analysed, costs were estimated, and the proposed solution was compared with competing equipment on the market. This work also aimed to reinforce technical knowledge in the area of auxiliary tilting devices by identifying technological trends and proposing a viable and optimised solution. As a result, the developed bending monitor fully complies with the defined requirements and limitations, and demonstrates high functionality and performance. The solution presented is economically more advantageous than the equipment currently in use, without compromising the reliability and accuracy of the process. Thus, all the established objectives were fully achieved, validating the proposal as an effective and competitive alternative for industrial application.
Description
Keywords
Mechanical design Kinematic analysis Press brake machine Press brake die Press brake sheet follower Finite element method Projeto mecânico Análise cinemática Quinadora Matriz de quinagem Acompanhador de quinagem Método de elementos finitos