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数控机床平动轴误差辨识及补偿研究
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国家自然科学基金资助项目(50775014)


Error Identification and Compensation Research of CNC Machine Tool Translation Axis
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    摘要:

    为了大幅提升数控机床平动轴的运动精度,从而满足当代数控系统对其高精度的要求,针对机床平动轴的空间几何误差开展了深入研究,提出了可以有效辨识平动轴空间几何误差的便捷方法,并基于齐次坐标变换原理建立了平动轴空间几何误差的辨识模型;针对机床平动轴定位误差的特性,提出了可以实现有效补偿的增量式误差补偿原理,并建立了相应的误差补偿模型。经验证,所提出的平动轴误差辨识法和增量式误差补偿原理不仅理论正确,而且可以大幅地提高机床平动轴的定位精度。

    Abstract:

    In order to promote the movement precision of CNC machine tool translational axis, thereby to meet the requirements of modern CNC system for its high precision, the in depth research was developed that aimed at space geometric error of CNC machine tool translational axis. A convenient method was proposed that could effectively identify the space geometric error of translational axis, and established the translational axis space geometric error identification model which based on the homogeneous coordinate transformation principle. According to the characteristics of CNC machine tool translational axis of positioning error, the incremental principle of error compensation was proposed which could realize effective compensation, and the corresponding error compensation model was established. After verified, the proposed translational axis of error identification method and incremental error compensation principle are not only correct in theory, but also can significantly improve the positioning precision of the machine tool translational axis.

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徐连香,郭春红,刘薇娜,李春梅.数控机床平动轴误差辨识及补偿研究[J].机床与液压,2017,45(9):68-71.
. Error Identification and Compensation Research of CNC Machine Tool Translation Axis[J]. Machine Tool & Hydraulics,2017,45(9):68-71

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  • 在线发布日期: 2017-07-05
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