Tool Holder Sensor Design and Implementation using Strain Gauges to Measure Cutting Forces in CNC Turning Machines.
| Autor: | Daniel Alberto Reyes Uquillas |
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| Rok vydání: | 2015 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 103 Cutting forces in machining operation are of great importance. There is a need to measure these forces by a simple and low cost solution. The present work covers the design and construction of a sensor to measure cutting forces generated in turning with a CNC lathe by attaching strain gauges directly inside of the tool holder, one on each side of the rectangular shank, to measure strain and estimate these forces. The design and implementation of the sensor consisted of three parts: The tool holder modification to attach the strain gauges, where a static analysis was done to find the best location to place them. The signal conditioning part in which a PCB was fabricated. This PCB holds the circuit for acquiring the signal and consists of a ½ Wheatstone bridge, an amplification stage, and a filter and offset stage. The third part is the data acquisition, where a NI cDAQ 9171 with an analog input module 9215 was used to capture the conditioned signal into the PC. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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