Application Of Force Sensor To Monitor Ball Screw Preload And Assembly Parallelism
| Autor: | LIOU,JHIH-HAO, 劉志豪 |
|---|---|
| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 Monitoring of force is an important means of implementing smart manufacturing, and the installation of sensitive and robust sensors in appropriate locations for monitoring purposes is the key to smart manufacturing. Ball screw is the basic element in mechanical equipment. This research, a self-designed force sensor was installed at the relevant position in the ball screw to monitor whether the rigidity change of the ball screw during long-term use and the parallelism of the installation were appropriate, so as to demonstrate the design of the force sensor. The role and importance of the installation location at the monitoring end. The preload sensor developed by the previous research team can be successfully used to monitor the preload, but the durability and reliability of use need to be tested. To test the durability and reliability of self-developed preload sensors, an accelerated wear test was performed using a vertical shaft test platform with a small ball screw, one of the small ball screws is a low-friction, high wear-resistant coating developed by our research team. In addition to verifying the durability of the preload sensor, the benefits of the high wear-resistant coating for ball screw operation are also discussed. In the monitoring of the parallelism of the ball screw, a sensor with the same concept as the preload monitoring is used. When the preload sensors are distributed in a balanced position in the four quadrants of the screw, in addition to the monitoring of the preload, it is also possible to judge simultaneously. Changes in the degree of parallelism of the ball screw mounting. The test platform is a parallel machine that can adjust the deflection of the slave side of the linear slide. According to the results of this research, self-designed force sensors and key locations for installation can achieve monitoring of different operating conditions. From the results of accelerated wear test, it was confirmed that the durability and signal detection results measured by the preload sensor were reliable, and the low-friction high wear-resistant coating introduced could actually reduce the preload loss due to friction wear of the ball screw. According to the results of the parallelism test, it is proved that the preload sensors modified according to the requirements of different working conditions can be judged to be non-parallel by using the imbalance between the preload through installation at the key position on the screw. To detect the effect of the yaw of the work ball screw due to parallelism. This research verifies that the self-developed preload sensor can monitor preload and parallelism at the same time through appropriate adjustments, and demonstrates the preload sensor developed in this research. It is an excellent industry to design and find key locations for installation universality. Keywords: force sensor, ball screw, preload, force monitoring, parallelism |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|