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

材料工程与机械制造

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基于机理驱动模型的卧式加工中心时变误差补偿

宋磊¹, 刘阔¹, 崔益铭¹, 陈虎², 陈玉峰², 王永青¹

1. 大连理工大学精密与特种加工教育部重点实验室, 大连 116024;
2. 科德数控股份有限公司, 大连 116600

收稿日期:2021-03-21 修回日期:2021-07-21 发布日期:2021-07-20
通讯作者: 刘阔,E-mail:liukuo@dlut.edu.cn E-mail:liukuo@dlut.edu.cn
基金资助:
国家自然科学基金(51775085);辽宁省科技重大专项(2020JH1/10100016);国家科技重大专项(2017ZX04011013);辽宁省'兴辽英才计划’项目(XLYC1807081)

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

SONG Lei¹, LIU Kuo¹, CUI Yiming¹, CHEN Hu², CHEN Yufeng², WANG Yongqing¹

1. Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, China;
2. Kede CNC Co., Ltd. Dalian 116600, China

Received:2021-03-21 Revised:2021-07-21 Published:2021-07-20
Supported by:
National Natural Science Foundation of China (51775085); Liaoning Science and Technology Major Project (2020JH1/10100016); National Science and Technology Major Project (2017ZX04011013); Liaoning Revitalization Talents Program (XLYC1807081)

摘要/Abstract

摘要： 航空工业对数控机床的需求具有高精度、复合及多轴联动等特点。数控机床的时变误差影响航空零件批量加工时的精度稳定性。对此,基于传热机理的时变误差模型对航发企业的卧式加工中心进给轴进行时变误差补偿。对卧式加工中心进给轴时变误差进行了测试,并对模型中的热特性参数进行了辨识。基于TCP/IP协议建立时变误差补偿器与数控系统之间的通讯,通过机床坐标原点偏置方式实现时变误差实时补偿。最后,在某航发企业卧式加工中心HAAS HS-1RP上开展了补偿效果的验证试验。试验结果表明,补偿后进给轴热致时变误差可以减少85.2%,大幅提高了机床的精度稳定性。

关键词: 卧式加工中心, 进给轴, 时变误差, 补偿, 机理驱动

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

中图分类号:

TG502.13

宋磊, 刘阔, 崔益铭, 陈虎, 陈玉峰, 王永青. 基于机理驱动模型的卧式加工中心时变误差补偿[J]. 航空学报, 2022, 43(7): 425549-425549.

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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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

基于机理驱动模型的卧式加工中心时变误差补偿

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

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