摘要: |
为解决大型航天器结构无法在线组合加工的瓶颈问题,提出了大型航天器结构精测→拆卸零件并加工→复装的离线组合加工方法,分析了离线组合加工过程的误差产生来源,并提出多项误差控制措施。最终,尺寸范围为Φ2600mm×5600mm的某大型舱体结构上200余个舱外支架经过离线组合加工,其线性尺寸公差精度达到±0.1mm,角度尺寸公差达到±3′,满足设计精度要求。 |
关键词: 大型航天器结构;离线组合加工;误差控制 |
基金项目:国家科技重大专项课题(2017ZX04007001)资助项目。 |
|
Error Analysis and Control in Large Spacecraft Off-line Combination Processing |
Zhang Xia Gao Liguo Liu Hanliang Yue Yi
|
Beijing Spacecraft Manufacturing Factory, Beijing 100094
|
Abstract: |
In order to solve the problem that online combined machining of large spacecraft cannot be carried out, the method of off-line combination processing is proposed. The error sources in off-line combination processing are analyzed, and some measures are proposed to reduce error. Finally, more than 200 brackets out of large spacecraft which size is Φ2600mm×5600mm are successfully produced, the dimensional accuracy is ±0.1mm, angular dimensional tolerance is ±3′, meeting the product design requirements. |
Key words: large spacecraft;off-line combination processing;error control |