In order to obtain a good quality of the welding result, it is important to trace the orbit automatically and to determine the position of the welding torch in the welding robots. This paper presents an automatic tracing system and a control method for the automatic seeking of the position of weld joint. The automatic tracing system is a four-wheeled robot with a Z4W-V25R OMRON sensor. Under the control of the method, the automatic tracing system can find the position of the weld joint automatically and adjust the position of the torch parallel to the welding line. The width of the groove and the entrance angle can be obtained from the information from the sensor. The locomotion control of the mobile robot is separated into three driving motions. The first is the robot moving ahead in a straight line until the sensor detects the weld groove, then moving back for a given distance and finally the robot starts to turn until the welding torch arrives at the centre of the groove and the moving direction of the robot runs parallel to the weld joint. The turning process is composed of three-stage Fresnel functions. The experiment has been carried out to verify the effectiveness of the proposed method. These results are shown to coincide well with the simulation results.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    The control of a mobile robot to find the weld joint automatically


    Contributors:
    Lu, Xueqin (author) / Zhang, Ke (author) / Liu, Gang (author) / Wu, Yixiong (author)

    Published in:

    Welding and Cutting ; 6 , 6 ; 334-338


    Publication date :

    2007


    Size :

    5 Seiten, 8 Bilder, 10 Quellen


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Wall-climbing type ship weld joint detection robot

    ZHU HAILIN | European Patent Office | 2020

    Free access

    WELD JOINT, WELD JOINT DESIGN METHOD, WELD JOINT MANUFACTURING METHOD, AND WATERCRAFT HULL STRUCTURE

    ICHIKAWA KAZUTOSHI / SHIMANUKI HIROSHI / OKAWA TEPPEI | European Patent Office | 2022

    Free access

    Obstacle-crossing type wall-climbing robot for weld joint detection

    WU SHANQIANG / HAN JINJING / JIANG JINXIN et al. | European Patent Office | 2020

    Free access

    Weld joint assembly

    ARUL SAMUEL JUDSON WILLIAM | European Patent Office | 2020

    Free access

    WELD JOINT ASSEMBLY

    ARUL SAMUEL JUDSON WILLIAM | European Patent Office | 2018

    Free access