基于多机器人协同的模拟装配位姿高精度构建技术

Technology for high-precision construction of simulation assembly poses based on multi-robot collaboration

  • 摘要: 增压输送管路作为运载火箭系统主体部件,承载推进剂从贮箱稳定输送至发动机的功能作用,直接关系运载火箭飞行可靠性。为解决复杂管路异地装配繁琐、反复测量难等问题,提出了一种利用双目跟踪仪结合视觉靶标的方法实现了机器人在管路装配中的高精度位姿复现。利用工业机器人和双目跟踪视觉系统进行多次重复实验,首先构建坐标系并进行对齐映射,其次采用基于视觉的多机器人闭环控制算法进行实时的位置校正,最后通过机器人现场位姿复现实验验证方法的有效性。结果表明,在动态跟踪过程中最大误差达0.01 mm,平均误差仅为0.007 mm,显示出良好的实时性和定位精度。该研究方法在复杂管路拼装领域具有实际应用价值。

     

    Abstract: The pressurized delivery pipeline, as a main component of the launch vehicle system, serves the function of stably conveying propellant from the tanks to the engine, directly influencing the flight reliability of the launch vehicle. To address issues such as the complexity of remote assembly of intricate pipelines and difficulties in repeated measurements, a method utilizing a binocular tracker combined with visual targets is proposed to achieve high-precision pose replication by robots in pipeline assembly. Experiments were conducted using industrial robots and a binocular vision tracking system with multiple repeated trials. The process initially involved coordinate system construction and alignment mapping, followed by the application of a vision-based multi-robot closed-loop control algorithm for real-time position correction. Finally, the effectiveness of the method was verified through on-site robot pose replication experiments. The results indicate that the maximum error during dynamic tracking was 0.01 mm, with an average error of only 0.007 mm, demonstrating good real-time performance and positioning accuracy. This research method holds practical application value in the field of complex pipeline assembly.

     

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