生産加工・工作機械部門講演会 : 生産と加工に関する学術講演会
Online ISSN : 2424-3094
セッションID: C27
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マシニングセンタの熱変位補償制御に関する研究
山下 俊一島名 賢児松尾 征一郎吉満 真一桜庭 肇東 大貴河野 良弘
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Thermal deformation of the structure leads to a decrease in the machining accuracy of the machine tools. The relative position between the tool and the table is changed by the change in temperature of machine tool. The final purpose of this study is to compensate the thermal displacement on a machining center in real time. For this final purpose, we have proposed a thermal displacement compensation system to predict the amount of displacement by regression analysis of the temperature and the displacement until now. In this paper, the temperature measurement position where there is a strong correlation with the thermal displacement at the spindle head was investigated in order to further improve the accuracy of this compensation system. In addition, relationship between the position accuracy and the tilt of the spindle caused by the heat generated with the spindle drive was investigated. Consequently, it was found that the displacement caused by the tilt of the spindle affected the position compensation.

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