Apparatus for automatically fillet-welding object to be welded comprising rectangular bottom plate and four side plates tack-welded substantially vertically to said bottom plate.

摘要

An apparatus for automatically fillet-welding an object to be welded comprising a rectangular bottom plate and four side plates tack-welded substantially vertically to the bottom plate, which comprises: a carriage (5) return-travellable on the bottom plate along the longitudinal direction thereof; a base plate (6) provided on the carriage (5) so as to be rotatable horizontally around the vertical axis of the carriage; a welding head (7) mounted on the base plate (6), comprising a welding nozzle (15), an X-axis profiling mechanism (17) and a Y-axis profiling mechanism (18); two guide bars (8, 8 min ), provided on the carriage (5) so as to be movable selectively and horizontally toward the side plate , for guiding travel of the carriage (5); a base plate rotation angle detecting mechanism (9) for detecting a rotation angle of the base plate (6); carriage position sensors (10, 10 min ), one each provided on each of the front and rear sides of the carriage (5) relative to the travelling direction thereof, for detecting a distance of the carriage (5) from the side plate perpendicular to the travelling direction of the carriage (5); and a welding controller (11), comprising an X-axis profiling controller, a Y-axis profiling controller, a carriage travel controller, a base plate rotation controller, a guide bar controller, and a welding completion controller.