Study on Rotation Axial Positioning Accuracy of Five - axis Machine by Taguchi Method

• Main Authors: Shou-Zheng Huang, 黃守正
• Other Authors: Dr. Ming-Chu Hsieh
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/z9sgxt

碩士 === 國立勤益科技大學 === 機械工程系 === 105 === The main purpose of this paper is to explore the axial positioning accuracy of the five-axis tooling machine. Firstly, the effects of different tool length, tool diameter, C-axis center distance and Kinematic correction distance on the accuracy of rotation axial positioning accuracy are discussed. Under different cutting conditions, the difference in the junction of the finished product is compared, and it is expected that there will be further understanding of the rotational axial positioning accuracy, and then the experiment is planned by the Taguchi method to obtain the optimization of the rotational axial positioning accuracy Processing conditions, the signal by noise analysis data, and by statistical analysis of variance to understand the contribution of each factor. Rotation axial positioning accuracy The experimental results show that the longer the tool, the greater the diameter of the tool or the distance from the mechanical origin of the greater the error will be greater, the processing of the broken will be more obvious, the rotation of the axial positioning accuracy in the shorter the length of the tool , The smaller the diameter of the knife, from the mechanical origin of the way under the experiment, the smaller the finished product defect, that knife length is short, knife radius is small, from the mechanical origin of the best cutting mode. The results of Taguchi show that the distance between A-axis rotation angle and distance from C-axis center is the main factor affecting machining failure. In experiment 2, the A-axis rotation angle and Kinematic correction distance are the main factors influencing machining failure. The results of the previous two groups show that the distance between the center of the C axis, Kinematic correction distance and A axis rotation angle are the most significant influencing factors, and the tool length and tool diameter have little effect. The experimental results show that the average error is 0.05mm, which is in accordance with the requirement of the axial positioning accuracy of the five-axis machine.