The invention belongs to the field of
laser processing, in particular to a multi-beam center wire feeding
laser processing head and a
processing method of the multi-beam center wire feeding
laser processing head. The
laser processing head comprises a wire
feeding tube, a wire feeding
nozzle and a plurality of identical optical modules, wherein the wire
feeding tube and the wire feeding
nozzle are located on the center axis of the
laser processing head, the optical modules are rotationally and symmetrically distributed around the center axis, each
optical module comprises a collimating lens set, a focusing lens set and a reflecting mirror set, lasers are transmitted to the processing head through a plurality of paths of optical fibers, a plurality of
laser beams are focused on one point of the surface of a workpiece to form a
molten pool after being collimated, focused and reflected by the optical modules, a
metal wire is perpendicularly fed into the
molten pool on the surface of the workpiece through the fire feeding
nozzle, and the
laser processing head moves on the surface of the workpiece according to a certain track so that the center wire feeding laser processing process can be achieved. Through the multi-beam center wire feeding laser processing head, center wire feeding in laser focusing light spots in
circular symmetry distribution is achieved, and the processing quality consistency is guaranteed when the laser processing head moves in different directions.