| Summary: | 碩士 === 國立雲林科技大學 === 機械工程系 === 105 === With the vigorous development of laser interferometry, the related applications have been implemented in the industry. Laser interferometers are commonly employed in the machine tool industry for the correlated inspections. Due to the manual operation, it may cause the personal errors and inefficiencies. Hence how to reduce the personal errors and improve the efficiencies become the important goal.
In this study, an automatic compensation system of the positioning error for the linear axes in machine tool is proposed. The laser interferometer, the self-developed measurement program and the Ethernet interface are linked to the controller for the automatic compensation. It has the advantages of high transmission rate, simple operation, avoiding the manual recording errors and improving the testing efficiency.
In order to verify the performance of the system, the square column is milled by the compensated positioning, and the effect of compensation can be observed by the commercial instruments. The analytic results show that the dimension error on the side X is reduced to 33 μm, the accuracy can reach to 9 μm；the dimension error on the side Y is improved to 26 μm, the accuracy can reach to 10 μm；the dimension error on the side Z can be minimized to 12 μm, the accuracy can reach to 14 μm. By automatic compensation system proposed in this investigation, the accuracy of the machine is improved and the dimension error of the processed production is reduced to meet the demands of industries.
Keywords: laser interferometer、linear positioning error、automatic compensation、milling verification
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