基于机理驱动模型的卧式加工中心时变误差补偿

doi:10.7527/S1000-6893.2021.25549

Abstract

Abstract: The demand for CNC machine tools in aviation industry is characterized by high accuracy, compound and multi-axis link-age. The accuracy stability of the aeronautical parts machined by batch-process is affected by time-varying error of CNC machine tools. Therefore, the time-varying error of feed axes for horizontal machining center of aero engine enterprises is compensated in real-time based on mechanism-driven time-varying error model. The time-varying error of feed axes is measured, and the thermal characteristic parameters in the model are identified. The compensator of time-varying error communicates with CNC system based on TCP/IP protocol. The method of machine tool coordinate origin offset was used to compensate the time-varying error. Finally, the test verification is implemented on a horizontal machine tool, the HAAS HS-1RP. The results show that the time-varying error of feed axis can be reduced by 85.2% with error compensation, and the accuracy stability of machine tool is improved greatly.

Key words: horizontal machining center, feed axis, time-varying error, compensation, mechanism drivenhttp

CLC Number:

TG502.13

SONG Lei, LIU Kuo, CUI Yiming, CHEN Hu, CHEN Yufeng, WANG Yongqing. Time-varying error compensation for horizontal machining center based on mechanism-driven model[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(7): 425549-425549.

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Time-varying error compensation for horizontal machining center based on mechanism-driven model

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