大型航天器结构离线组合加工误差分析及控制
|
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。
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 Φ2600 mm×5600 mm are successfully produced, the dimensional accuracy is ±0.1 mm, angular dimensional tolerance is ±3′, meeting the product design requirements.
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 Φ2600 mm×5600 mm are successfully produced, the dimensional accuracy is ±0.1 mm, angular dimensional tolerance is ±3′, meeting the product design requirements.
引文
[1] Ueda Y,Murakawa H,Ma N.Welding deformation and residual stress prevention[M].Amsterdam:Elsevier,2012
2 Kim Y,Lee J,Sawada M,et al.Measurement and numerical simulation of welding distortion generated by butt welding[J].Japan Welding Society,2005(77):300~301
3 梁伟,夏洋,冯伟,等.焊接变形的高精度测量方法及预测方法研究[J].机械工程学报,2016(8):65~70
4 黄志鹏,林晓青,韩星.基于检测数据的大型装配体结构件组合加工新方法[J].CAD/CAM与制造业信息化,2009(8):81~82
5 Jun Ni.Dimensional errors of Fixtures,locating and measurement datum features in the stream of variation modeling in machining[J].Journal of Manufacturing Science and Engineering.2003,125:716~730
6 Qiang Huang.Stream of variation modeling and analysis of serial-parallel multistage manufacturing systems[J].Journal of Manufacturing Science and Engineering.2004,126(8):611~618
7 王卫军,李晓星,方程,等.激光跟踪仪在风机叶片外形测量中的应用[J].航天制造技术,2009,12(6):26~29
8 汪晶,李晓星,郭涛.激光跟踪仪现场测量不确定度检测[J].航天制造技术2011,10(5):23~26
2 Kim Y,Lee J,Sawada M,et al.Measurement and numerical simulation of welding distortion generated by butt welding[J].Japan Welding Society,2005(77):300~301
3 梁伟,夏洋,冯伟,等.焊接变形的高精度测量方法及预测方法研究[J].机械工程学报,2016(8):65~70
4 黄志鹏,林晓青,韩星.基于检测数据的大型装配体结构件组合加工新方法[J].CAD/CAM与制造业信息化,2009(8):81~82
5 Jun Ni.Dimensional errors of Fixtures,locating and measurement datum features in the stream of variation modeling in machining[J].Journal of Manufacturing Science and Engineering.2003,125:716~730
6 Qiang Huang.Stream of variation modeling and analysis of serial-parallel multistage manufacturing systems[J].Journal of Manufacturing Science and Engineering.2004,126(8):611~618
7 王卫军,李晓星,方程,等.激光跟踪仪在风机叶片外形测量中的应用[J].航天制造技术,2009,12(6):26~29
8 汪晶,李晓星,郭涛.激光跟踪仪现场测量不确定度检测[J].航天制造技术2011,10(5):23~26