Saw blade fixing structure of wood working machinery

The invention discloses a saw blade fixing structure of wood working machinery, which belongs to the technical field of machinery. The saw blade fixing structure comprises a screwing seat, regulating screw rods, sleeve rings, saw blades, a rotating shaft, an inner screw hole, regulating screw holes, a spring I and a spring II, wherein the inner screw hole is arranged at the center of the screwing seat, the regulating screw holes are arranged surrounding the inner screw hole and are penetrated, the regulating screw rods are screwed in the regulating screw holes, the sleeve rings and the saw blades are respectively sleeved on the rotating shaft, the saw blades are positioned between two sleeve rings, the inner screw hole of the screwing seat is locked with a screwing part of the rotating shaft, and the spring I and the spring II are respectively sleeved on the rotating shaft and are positioned between the screwing seat and the sleeve rings. The saw blade fixing structure disclosed by the invention has the benef