Thermal Deformation Measurement of Rotary Axes and Development of Remote Monitoring Platform for Machine Tools
| Autor: | CHANG, CHIA-HAO, 張嘉豪 |
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| Rok vydání: | 2019 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 107 Due to the rapid development of the machinery industry, the processing technology of five-axis machine tools is be improved every day. The requirements of machining accuracy are more and higher. However, thermal errors of machine tools are one of the major sources of inaccuracy. The thermal deformation compensation has been paid attention to the industry in recent years. Accordingly, reducing thermal deviation is an indispensable problem in the future. The thermal deformation errors of rotary axes of the five-axis machine tool are measured in this study. The inspection methods for the thermal deformation of machine tools of the spindle and linear axis have international standard specifications. However, the inspection methods of the rotary axes thermal deformation are not included in any international standard yet. Therefore, this study refers to the references [16][21][25], propose the methods to measure the thermal deformation of the rotary axes. The content of this study is divided into three parts. The first part focuses on the measurement methods of the thermal deformation errors of the rotary axes. The measurement methods are using different instruments such as double ball bar, inductive gauging sensor, and rotary axis calibrator to measure. The second part is establishing the model for predicting the thermal displacement of rotary axes. The linear and polynomial regression analysis were used to model in this study. Finally, the remote monitoring system for machine tools was built in this study in response to the trend of Industry 4.0 and an intellectual factory. The remote monitoring system connects the controller of the machine tool by the library and communication protocols. In addition, the processing and temperature statuses were monitored by this system. At the same time, the processing information is released to the cloud platform, so that users can monitor the processing status of the machine tool by the network. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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