Polymer multi-material high-flexibility laser additive manufacturing system and method thereof

A polymer multi-material high-flexibility laser additive manufacturing system, wherein that wherein the system includes a first robot, a second robot separated from the first robot, a positioner, a rotational extrusion nozzle and a laser, wherein:

• the rotational extrusion nozzle is used for extruding filaments and is provided with a plurality of extrusion modules, each extrusion module is used for extruding one kind of filament, the position of the respective extrusion module is adjusted by rotating the rotational extrusion nozzle to achieve switching of the extruded filaments, the rotational extrusion nozzle is connected with the first robot, and the first robot moves according to a preset trajectory to drive the rotational extrusion nozzle to move, so that switching of the extrusion filaments is achieved;
• the laser is connected with the second robot, and is used for emitting a laser to fuse the filament after the filament is extruded from the rotational extrusion nozzle, and through the cooperative motion of the first robot and the second robot, the extrusion and fusion of the filament are performed synchronously and separately;
• the positioner serves as a processing mesa, and a forming angle is adjusted by rotating the positioner to cooperate with motions of the two robots simultaneously, and motion trajectories of the positioner, the first robot and the second robot cooperate with each other without mutual interference.