基于激光跟踪仪的管路数字化取样制造技术研究

Research on Digital Sampling Manufacturing Technology of Pipeline based on Laser Tracker

在运载火箭中,由于箱体和发动机制造误差、装配误差以及各装配件的累积误差等因素,导致这些连接的输送管路必须通过箭上实际装配空间来进行现场取样装配,方能保证其在箭体上的精确对接装配。针对该类大直径输送管路,开展基于激光跟踪仪测量方法的管路数字化取样制造技术研究,首先通过在总装前分别测量箱体和发动机关键连接部位的空间位置,然后基于测量数据进行数字模型的虚拟装配,最后通过机器人复现该管路系统的相对空间位置,模拟管路在箭体总装现场的取样制造。通过实测正式产品来验证该数字化取样制造的精度,实现管路的并行生产,提高装配生产效率。

In the launch vehicle,due to factors such as tank and engine manufacturing errors,assembly errors,and cumulative errors of various assembly parts,these connected conveying pipelines must be sampled and assembled on-site through the actual assembly space on the arrow.Its precise docking assembly on the rocket body.For this type of large diameter conveying pipeline,this research carries out the research on the digital sampling and manufacturing technology of the pipeline based on the measurement method of the laser tracker.The spatial position of the key connection parts of the tank and the engine are measured before the final assembly,and then digital based on the measured data virtual assembly of the model,and finally reproduce the relative spatial position of the pipeline system through a robot,and simulate the sampling and manufacturing of the pipeline on the site of the rocket body assembly.The accuracy of the digital sampling and manufacturing is verified through actual measurement of official products,parallel production of pipelines is realized,and assembly production efficiency is improved.