Welding robot

Details Welding robot Welding robot

1994-08-05

1996-07-02

Shaw, Clifford C.

Electric heating

Metal heating

By arc

2191251, B23K 912

Patent

active

055324525

ABSTRACT:
A welding robot, in particular for automatic welding of spirally bent tubes for producing dynamically balanced thrust nozzles, is provided with a sensor arrangement which scans the course and the cross-sectional geometry, in particular the gap width, of the joint gap between the components to be welded together. The robot includes an evaluation unit generating setting signals, and a setting device which is controlled by the setting signals and which adjustably sets the welding parameters (welding speed and welding output) and guides the welding head along the joint gap in a multi-axially adjustable manner. In order to provide an automatic, real-time adaptation of the welding parameters with little structural and computational effort, even under difficult welding conditions, and to improve the welding quality significantly in spite of a high working speed, the evaluation unit contains a data memory with a plurality of welding parameter data sets respectively associated with different joint gap cross section geometries, and a control stage which forwards the welding parameter set associated with the respectively detected joint gap geometry as a setting signal to the setting device.

REFERENCES:
patent: 4621185 (1986-11-01), Brown
patent: 5107093 (1992-04-01), Ekelof et al.

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