Control method and system for a trackless autonomous crawling all-position arc welding robot with wheels and permanent magnet caterpillar belts
First Claim
1. A control method for a trackless autonomous crawling all-position arc welding robot with wheels and permanent magnet caterpillar belts, said method comprising the steps of:
- timely detecting a position image signal of the a welding seam using a laser CCD sensor;
transmitting said position image signal to a tracking controller after signal processing;
sending out instructions by from the tracking controller upon receipt of said position image signal;
moving a welding torch in one of a vertical and horizontal direction upon said instructions via a bi-directional driving mechanism and a cross slide;
wherein said welding torch is fixed on said cross slide;
when a horizontal slide shift signal is sent out as a horizontal slide of said cross slide moves, synthetically transmitting said image signal and said horizontal slide shift signal to a crawler drive controller via a programmable logic controller (PLC);
said crawler drive controller sending out instructions to drive two permanent magnet caterpillar belts respectively and thereby drive and turn a crawler via an AC servomotor drive;
said PLC coordinating said cross slide and said crawler in combined tracking control, and movements of said cross slide and said crawler enabling said welding torch to track the welding seam and ensuring alignment precision, without placing a track, performing teaching or programming.
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Accused Products
Abstract
A method and system are provided for a trackless autonomous crawling all-position arc welding robot with wheels and permanent magnet caterpillar belts. A sensor detects a welding seam position and transmits the position to a tracking controller. The tracking controller sends instructions to a welding torch which may be moved in generally horizontal and vertical directions based upon the instructions. Additionally, a crawler drive controller receives the welding seam position and sends a control signal to an AC servomotor drive that positions the crawler based on the control signal.
11 Citations
7 Claims
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1. A control method for a trackless autonomous crawling all-position arc welding robot with wheels and permanent magnet caterpillar belts, said method comprising the steps of:
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timely detecting a position image signal of the a welding seam using a laser CCD sensor; transmitting said position image signal to a tracking controller after signal processing; sending out instructions by from the tracking controller upon receipt of said position image signal; moving a welding torch in one of a vertical and horizontal direction upon said instructions via a bi-directional driving mechanism and a cross slide;
wherein said welding torch is fixed on said cross slide;when a horizontal slide shift signal is sent out as a horizontal slide of said cross slide moves, synthetically transmitting said image signal and said horizontal slide shift signal to a crawler drive controller via a programmable logic controller (PLC); said crawler drive controller sending out instructions to drive two permanent magnet caterpillar belts respectively and thereby drive and turn a crawler via an AC servomotor drive; said PLC coordinating said cross slide and said crawler in combined tracking control, and movements of said cross slide and said crawler enabling said welding torch to track the welding seam and ensuring alignment precision, without placing a track, performing teaching or programming. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification