EFFECT OF SUPPLY COOLING OIL TEMPERATURE IN STRUCTURAL COOLING CHANNELS ON THE POSITIONING ACCURACY OF MACHINE TOOLS
學年 108
學期 1
出版（發表）日期 2019-12-04
作品名稱 EFFECT OF SUPPLY COOLING OIL TEMPERATURE IN STRUCTURAL COOLING CHANNELS ON THE POSITIONING ACCURACY OF MACHINE TOOLS
作品名稱（其他語言）
著者 K.Y. Li; W.J. Luo; M.H. yang; X.H. Hong; S,J. Luo; C.N. Chen(陳俊男)
單位
出版者
著錄名稱、卷期、頁數 JOURNAL OF MECHANICS 35(6), p. 887-900
摘要 In this study, the thermal deformation of a machine tool structure due to the heat generated during operation was analyzed, and embedded cooling channels were applied to exchange the heat generated during the operation to achieve thermal error suppression. Then, the finite volume method was used to simulate the effect of cooling oil temperature on thermal deformation, and the effect of thermal suppression was experimentally studied using a feed system combined with a cooler to improve the positioning accuracy of the machine tool. In this study, the supply oil temperature in the structural cooling channels was found to significantly affect the position accuracy of the moving table and moving carrier. If the supply oil temperature in the cooling channels is consistent with the operational ambient temperature, the position accuracy of the moving table in the Y direction and the moving carrier in the X and Z directions has the best performance under different feed rates. From the thermal suppression experiments of the embedded cooling channels, the positioning accuracy of the feed system can be improved by approximately 25.5 % during the dynamic feeding process. Furthermore, when the hydrostatic guideway is cooled and dynamic feeding is conducted, positioning accuracy can be improved by up to 47.8 %. The machining accuracy can be improved by approximately 60 % on average by using the embedded cooling channels in this study. Therefore, thermal suppression by the cooling channels in this study can not only effectively improve the positioning accuracy but also enhance machining accuracy, proving that the method is effective for enhancing machine tool accuracy.
關鍵字 Thermal deformation;Thermal suppression;Structure cooling;Oil temperature
語言 en
ISSN 1811-8216
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 W.J. Luo (駱文傑)
審稿制度 否
國別 GBR
公開徵稿
出版型式 ,電子版
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