Thermal Deformation of an Ultraprecision Machine Tool due to Environmental Temperature Change. Analysis of Thermal Characteristics by Transfer Function and Estimation of Deformation by Convolution Integral.
Thermal Deformation of an Ultraprecision Machine Tool due to Environmental Temperature Change. Analysis of Thermal Characteristics by Transfer Function and Estimation of Deformation by Convolution Integral.
复制标题
环境温度变化引起的超精密机床热变形。
DOI：
10.1299/kikaic.63.4025
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
T. Tokunaga
中科院分区：
文献类型：
--
作者：
T. Moriwaki;E. Shamoto;T. Tokunaga
本文研究了超精密机床主轴系统受环境空气温度变化影响的热行为。首先，发现热变形随着主轴转速的增加而增加，这被认为是由传热系数的增加引起的。通过实验获得了不同转速下环境温度变化与机器热变形之间的传递函数，并分析了机器的热行为。其次，提出了一种利用测量的传递函数和卷积积分来估计热变形的简单方法，以便将来控制加工精度。
The present paper deals with the thermal behavior of the main spindle system of an ultraprecision machine tool as affected by a change in the temperature of the ambient air. First, it is found that the thermal deformation increases with an increase in the rotational speed of the spindle, which is considered to be caused by an increase in the heat transfer coefficient. The transfer functions between the ambient temperature variation and the thermal deformation of the machine are obtained experimentally for various rotational speeds, and the thermal behavior of the machine is analyzed. Second, a simple method of estimating the thermal deformation for future control of machining accuracy by utilizing the measured transfer functions and the convolution integral is proposed.