Digital Manufacturing Technology of Special-shaped Pipe of Launch Vehicle Based on Point Cloud Measurement

Abstract

In view of the current manufacturing model of launch vehicle pipe sampling and final assembly, it severely restricts the assembly period of the launch vehicle. In this paper, the use of laser scanning method is proposed to build a physical point cloud model of different arrow body. According to the assemble benchmarks based on different rocket body, the data is extracted from the physical point cloud models of different rocket body to establish the datum plane and datum circle center, using benchmark alignment to realize digital assembly of point cloud models of different arrow body, and using coarse matching, fine matching and other algorithms to analyze the benchmark establishment and benchmark alignment. Based on the assembled point cloud model, according to the "point, line, surface" way to establish the catheter model for subsequent processing. The digital pre-manufacture of the carrier rocket sampling catheter is realized sucessfully.

Keywords

laser scanning / model stitching / rocket / pipe

References

[1] 秦旭东,龙乐豪,容易. 我国航天运输系统成就与展望[J]. 深空探测学报(中英文),2016,3(4):315-322
QIN X D,LONG L H,RONG Y. The achievement and future of China space transportation system[J]. Journal of Deep Space Exploration,2016,3(4):315-322
[2] 范瑞祥,容易. 我国新一代中型运载火箭的发展展望[J]. 载人航天,2013,19(1):1-4
FAN R X,RONG Y. The evolution prospect of China’s medium launch vehicle[J]. Manned Spaceflight,2013,19(1):1-4
[3] 赵长喜,姜坤,张佳鹏,等. 航天器管路数字化制造技术与实践[J]. 航天器环境工程,2013,12(30):659-662
ZHAO C X,JIANG K,ZHANG J P,et al. Digital manufacturing technology and practice for pipelines in spacecraft[J]. Spacecraft Environment Engineering,2013,12(30):659-662
[4] 韩志仁,吕彦盈,刘宝明. 飞机焊接导管数字化制造技术研究[J]. 航空制造技术,2017(8):95-98
HAN Z R,LV Y Y,LIU B M. Research on the digital manufacturing technology of aircraft welding tube[J]. Aeronautical Manufacturing Technology,2017(8):95-98
[5] 毛燕,詹梅. 数字化制造技术在ARJ21飞机导管研制中的应用[J]. 锻压技术,2008,8(33):120-123
MAO Y,ZAN M. Application of digitized manufacturing technology to pipe forming of aircraft ARJ21[J]. Forging and Stamping Technology,2008,8(33):120-123
[6] 白雪山. 导管数字化制造技术在某新型飞机研究中的应用[J]. 航空制造技术,2014(14):83-85
BAI X S. Application of tube digital manufacturing technology on a new type of plane[J]. Aeronautical Manufacturing Technology,2014(14):83-85
[7] 罗敏,周京平. 柔性工装在导管数字化制造中的应用[J]. 航空制造技术,2014(S1):158-161
LUO M,ZHOU J P. Application of flexible tooling in digital manufacturing of catheter[J]. Aeronautical Manufacturing Technology,2014(S1):158-161
[8] 李金全,刘景铎,刘景彬,等. 基于机器人系统的拼焊型导管数字化取样制造技术研究[J]. 航天制造技术,2019,2(1):42-48
LIN J Q,LIU J D,BAI J B,et al. Research on digital reconfiguration manufacturing technology of tailor welded pipe based on robot system[J]. Aerospace Manufacturing Technology,2019,2(1):42-48
[9] SON H,KIM C. Automatic segmentation and 3D modeling of pipeline into constituent parts from laser-scan data of the built environment[J]. Automation in Construction,2016,67(2):1-9
[10] BAUER U,POLTHIER K. Generating parametric models of tubes from laser scans[J]. Computer-Aided Design,2019,41:719-729
[11] 仵永亮,丁志强,刘辉. 运载火箭数字化总装生产线构建方案研究[J]. 科技创新导报,2019(11):12-13,16
WU Y L,DING Z Q,LIU H. Research on construction scheme of digital final assembly production line for launch vehicle[J]. Science and Technology Innovation Herald,2019(11):12-13,16
[12] TRAN T T,CAO V,LAURENDEAU D. Extraction of cylinders and estimation of their parameters from point clouds[J]. Computer & Graphics,2015,46(C):345-357
[13] 申旭,朱文芳,王伟峰,等. 一种空间圆柱面拟合计算方法[J]. 测绘科学技术学报,2018,35(6):601-604
SHEN X,ZHU W F,WANG W F,et al. A method of fitting space cylindrical surface[J]. Journal of Geomatics Science and Technology,2018,35(6):601-604
[14] 于达. 基于局部不变特征和点云配准的目标识别与定位技术研究[D]. 哈尔滨：哈尔滨工业大学，2018.
YU D. Research on target recognition and localization based on local invariant features and point cloud registration[D]. Harbin：Harbin Institute of Technology，2018.
[15] FISCHLER M A,BOLLES R C. Random sample consensus[J]. Communications of the ACM,1981,24(6):33-40