Publicação
Vibration sensor for in-situ monitoring during robot based computer polishing CCP
| Resumo: | The current polishing process, computer controlled polishing, parameters are set before the process start and are assumed constant throughout the entire process. However, these are just assumptions that can only be proven when sensors are mounted on a polishing head. The aim of this research is access if the machine is working properly throughout the analysis of the vibrations, more specifically the vibrations of the bearings, to predict incoming maintenance of the polishing head before it even stops running and when the bearings needs to be changed in order to achieve the best performance of the machine. A sensor that will help to investigate the process is a vibration sensor. This sensor can help to get information about abnormal vibrations from the polishing head. A vibration sensor could help to predict the lifetime of bearings or from the V-belt pulley. The function of monitoring and controlling the vibration caused on the polishing head is important because with this analysis is possible to discover abnormal vibrations and maybe correct them allowing to have more control over the surface that is being polished. This optimizes the operation of the polishing machine, since the precision of the machine is one of the most important factors, as it has a great impact on the polishing performance of the final part. A research was done in order to know which polishing parameters could be measured using a vibration sensor as well as position and assembly on the polishing head and then conclusions were made where it was possible to see that in fact it was possible to condition monitoring with this sensors and to identify the damages on the bearings throughout the vibrations. |
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| Autores principais: | Braga, Maria Inês Bacelar Junqueira |
| Assunto: | Vibration sensor Polishing head machine Vibration analysis Bearing analysis Condition monitoring Sensor de vibração Máquina de cabeça de polir Análise de vibração Análise de rolamentos Monitorização do estado |
| Ano: | 2022 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | The current polishing process, computer controlled polishing, parameters are set before the process start and are assumed constant throughout the entire process. However, these are just assumptions that can only be proven when sensors are mounted on a polishing head. The aim of this research is access if the machine is working properly throughout the analysis of the vibrations, more specifically the vibrations of the bearings, to predict incoming maintenance of the polishing head before it even stops running and when the bearings needs to be changed in order to achieve the best performance of the machine. A sensor that will help to investigate the process is a vibration sensor. This sensor can help to get information about abnormal vibrations from the polishing head. A vibration sensor could help to predict the lifetime of bearings or from the V-belt pulley. The function of monitoring and controlling the vibration caused on the polishing head is important because with this analysis is possible to discover abnormal vibrations and maybe correct them allowing to have more control over the surface that is being polished. This optimizes the operation of the polishing machine, since the precision of the machine is one of the most important factors, as it has a great impact on the polishing performance of the final part. A research was done in order to know which polishing parameters could be measured using a vibration sensor as well as position and assembly on the polishing head and then conclusions were made where it was possible to see that in fact it was possible to condition monitoring with this sensors and to identify the damages on the bearings throughout the vibrations. |
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