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Robust modeling approach of thermal error compensation based on regression orthogonal design for batch of CNC turning center

机译:基于回归正交设计的CNC车削中心的回归正交设计鲁棒建模方法

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In this paper a robust thermal error modeling and compensation approach for batch of CNC turning center is proposed based on the regression orthogonal experiment design theory. Firstly, Through the use of thermal error mode analysis, the number of thermal sensors has been reduced from 16 to four. Base on analyzing the existing approaches of the thermal error modeling, a new approach of regression orthogonal design is proposed, which combines the statistic theory with machine structures, surrounding condition, engineering judgments, and experience. The thermal error compensation system has been applied to a large batch of turning centers in daily production for more than two years and it has kept year-round accuracy. The workpiece diameter error has been reduced from 35μm to 12μm with the application of orthogonal regression modeling and compensation system of thermal error.
机译:本文基于回归正交实验理论,提出了一种稳健的热误差建模和批量数控车削中心的补偿方法。首先,通过使用热误差模式分析,热传感器的数量从16到4减少。基于分析热误差建模的现有方法,提出了一种新的回归正交设计方法,将统计理论与机器结构,周围条件,工程判断和经验相结合。热误差补偿系统已应用于日常生产中的大量转向中心,超过两年,并保持全年精度。随着正交回归建模和热误差补偿系统,工件直径误差从35μm降至12μm。

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