Construction of Measurement Error System of CNC Lathe

• Main Authors: Ya-Jyun Chen, 陳雅君
• Other Authors: RUEI-JHANG LIN
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/h7h82m

碩士 === 國立虎尾科技大學 === 機械設計工程系碩士班 === 106 === In recent years, a large number of CNC machine tools into the ranks of production, and gradually towards the unmanned realm forward, but due to the structural rigidity of the machine itself and the manufacturing accuracy of the constraints, the inevitable heat of cutting caused by the workpiece, tool, machine thermal deformation, Workpiece, the machine of the deformation, tool wear and other factors, making the accuracy of the workpiece is difficult to achieve the desired accuracy, resulting in its processing of parts also deformation. To determine the accuracy of CNC machining, the processing industry generally moved the workpiece to three yuan or other measuring instrument on the measurement, this method will not only result in the second processing of the cumulative error, and more inefficient. In this paper, an online measurement method combining laser triangulation sensor (RF603) with CNC lathe is proposed. Research Visual Basic 2010 to write the control interface for CNC machining accuracy measurement, the lathe for the Fanuc OT controller, the main part of the class to the main pole, the measurement will be self-made laser fixture installed to the lathe knife handle, And the use of RS232 and PC connection, through the laser readings before and after processing the value of processing, this method can be achieved without moving the workpiece to improve the measurement efficiency and quality. According to the experimental results, compared with the traditional measurement methods, the use of laser displacement measurement, can reduce the error and improve the efficiency of measurement.