The Research of Accurately Enhancing in a 5-axis High Speed Machine Tool

• Main Authors: yu-shiang yang, 楊喻翔
• Other Authors: hai wang
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/48968669857030104514

碩士 === 明志科技大學 === 機電工程研究所 === 96 === The research target of this thesis is a dual axis rotary mechanism in a 5-axis High Speed Machining machine tool. It consists of measuring and compensating the mechanical kinematic errors. Another topic of this thesis is monitoring heat rising of the high speed spindle. From the spindle running test、we find the most sensitive location of the high speed spindle to heat rising. The experimental result show that the front bearing of spindle with the most sensitive to heat rising、and the other portion of spindle their heat rising could be depressed under 2℃ by a cooling cycle system. In the mechanical kinematic error compensation research of dual axis rotary mechanism、a coordinate measuring machine and a dual axis laser autocollimator are used to measure the mechanical kinematic errors. We employ the homogeneous transformation matrix as a tool to compensate and constitute the mechanical kinematic errors model. We use a high precision coordinate measuring machine to verify the positioning errors of this dual axis rotary mechanism after compensation. The verification result show that the positioning accuracy in X、Y and Z axes are enhanced 8,02%、91.47% and 91.48% respective.