Weld seam tracking based on macro-micro robot

Ping Yang*, De Xu, Yuan Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

A new method based on macro-micro robot for weld seam tracking is presented. The positions of several teaching points on the weld seam are obtained via a simple teaching method, and the welding seam model is set up via fitting. Then the macro motion of the robot is planned according to the model. The coordinate of the weld seam is measured with a laser structured-light vision sensor, and the image error of the weld seam is employed to control the micro motion of the robot. With the combination of the planning macro motion and the adjusting micro motion, the welding seam tracking with high accuracy in large working range can be realized. A series of experiments are conducted with a macro-micro motion platform, and the experimental results demonstrate the validity of the proposed method.

Original languageEnglish
Pages (from-to)503-507+515
JournalJiqiren/Robot
Volume30
Issue number6
Publication statusPublished - Nov 2008
Externally publishedYes

Keywords

  • Coordinated movement
  • Macro-micro motion
  • Motion planning
  • Robot
  • Weld seam modelling
  • Weld seam tracking

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