Weld Trajectory Measurement Based on Stripe Type Laser Sensor

Authors

Li Lin, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China;
Weijie Chen, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China;
Yanbiao Zou, School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China;

Abstract

Abstract: Teaching and playback are usually used on welding robot to weld a part. To make sure the implementation of this mode, it is needed to locate the part using artificial sport welding in the front process, which could cause location error and make the actual track deviate from the teaching track. A welding track offline detection device using stripe type laser sensor was proposed for solving the problem. The laser sensor was mounted at the end of the robot. The robot moved along the weld trajectory before welding. The information of the weld track section was gotten and the feature points were extracted by the laser sensor. The weld trajectory was gained using NURBS curve fitting. Experimental results show that the algorithm is highly accurate and efficient, and can satisfy the requirement of robot's automatic searching track for real-time response.

Recommended Citation

Lin, Li; Chen, Weijie; and Zou, Yanbiao (2020) "Weld Trajectory Measurement Based on Stripe Type Laser Sensor," Journal of System Simulation: Vol. 29: Iss. 7, Article 25.
DOI: 10.16182/j.issn1004731x.joss.201707025
Available at: https://dc-china-simulation.researchcommons.org/journal/vol29/iss7/25

First Page

1588

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201707025

Last Page

1595

CLC

TP242.2

Recommended Citation

Li Lin, Chen Weijie, Zou Yanbiao. Weld Trajectory Measurement Based on Stripe Type Laser Sensor[J]. Journal of System Simulation, 2017, 29(7): 1588-1595.

DOI

10.16182/j.issn1004731x.joss.201707025