the automatic wood planer includes two front columns separately assembled at both sides of the input end of the feed table of the main body . the pin joint end of the rotary support is screwed at the preset location of the feed table . the swinging end of the rotary support is connected to the lifting seat , so that the cutter shaft is assembled between the pin joint end of the rotary support and the swinging end . the present invention saves more components and reduces the volume and fabrication costs with improved economic efficiency and applicability .