无人机机身结构制孔装备研制与试验研究

Development and experimental research of hole-making equipment for UAV airframe structure

  • 摘要: 针对碳纤维复合材料无人机机身结构高精度制孔难题,研制了混联机器人高精度制孔装备,并建立了串-并多自由度协同与多传感器融合的控制架构。提出了基于多点激光测距的姿态修正策略及接触式测量深度控制策略。构建了虚拟环境和物理空间交互映射的孪生仿真框架,并实现了基于孪生模型的制孔过程仿真。最终,通过制孔试验分析,验证了所提出的控制架构、制孔位姿修正方法的有效性。试验结果表明,孔位姿态误差最大为0.48°,孔径偏差绝对值范围为0.04~0.10 mm,铆钉安装状态满足设计要求,制孔效率提升2倍。

     

    Abstract: Aiming at the high-precision drilling requirements of carbon fiber composite drone body structures, a hybrid robot high-precision drilling equipment was developed, and a control architecture of series parallel multi-degree of freedom collaboration and multi-sensor fusion was established. The attitude correction strategy based on multi-point laser ranging and the contact-based measurement depth control strategy were proposed. A twin simulation framework that maps the interaction between virtual environment and physical space was constructed, and the simulation of the hole-making process based on the twin model was realized. Finally, the effectiveness of the proposed control architecture and hole position correction method was verified through hole making test analysis. The test results show that the maximum error of the hole position posture is 0.48°, the absolute value range of the hole diameter deviation is 0.04~0.10 mm, the rivet installation state meets the design requirements, and the hole-making efficiency is increased by 2 times.

     

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