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

被引：0
|
作者：
Song L. [1 ]
Liu K. [1 ]
Cui Y. [1 ]
Chen H. [2 ]
Chen Y. [2 ]
Wang Y. [1 ]
机构：
[1] Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian
[2] Kede CNC Co., Ltd., Dalian
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2022年 / 43卷 / 07期
基金：
中国国家自然科学基金;
关键词：
compensation; feed axis; horizontal machining center; mechanism driven; time-varying error;
D O I：
10.7527/S1000-6893.2021.25549
中图分类号：
学科分类号：
摘要：
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. © 2022 AAAS Press of Chinese Society of Aeronautics and Astronautics. All rights reserved.
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