Research on the Improvement of Lathe C Axis Precision

• Main Authors: CHEN,HUNG-CHIA, 陳宏嘉
• Other Authors: HSIEH MING-CHU
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/hpyy44

碩士 === 國立勤益科技大學 === 機械工程系 === 106 === With the continuous progress of the times, the technology of the machine tool is constantly improving, and the C-axis on the turning and milling machine is also becoming more and more widely used in processing applications, such as: eccentric round machining, contour curve machining, positioning angle machining... In addition, due to these demands, there was a machining center that was involved in the company's lathe. The positioning accuracy in the C-axis machining was insufficient, so that it was impossible to accept the accuracy of machining using the C-axis, resulting in a daily decrease in the supply of lathes. However, the factors affecting the positioning accuracy of the C-axis include the transmission error of the positioning axis and the power axis, the resolution of the positioning axis encoder, the precision control of the servo system, and the assembly precision of the various parts, all of which cause the workpieces after processing to fail to reach. The required tolerances and the status of repetitive milling, this study to explore the way to improve the accuracy of the C-axis lathe, with different specifications of the coder and power tool holder, with the servo tuning machine to study in order to achieve the accuracy of the customer's needs, and found The results of different encoders produced by the servo tuning machine have a significant drop, and with the imported power tool holder, the accuracy is improved from the original error of 1695 um to 5 um. On the one hand, the market needs are improved, and on the other hand, the accuracy results can be integrated, and a set of standardized machining accuracy grades can be determined according to the different requirements of the client's machining accuracy, and the corresponding encoder specifications and equipment.