The invention discloses an adjustable clamping plate platform for wood sanding, which comprises telescopic supporting legs and a smooth table top, wherein a plate feeding supporting frame, a grindingbelt supporting frame and an outgoing plate discharging supporting frame are arranged on the smooth table top, an incoming plate feeding supporting frame is provided with a fixed flat rod and a sliding flat rod, and each of the fixed flat rod and the sliding flat rod is provided with a wheel hub, a vacuum tire and a first driven belt wheel by means of a wheel shaft; belt rollers are erected between two vertical plates of the
grinding belt supporting frame, foaming rubber belts are wound around the upper belt rollers,
grinding belts are wound around the lower belt rollers, and the belt rollersare connected with a second driven belt wheel; the first driven belt
pulley is connected with a first driving belt
pulley, and the second driven belt
pulley is connected with a second driving belt pulley; and the vacuum tire is communicated with an
air pump by means of an air
pipe. The adjustable clamping plate platform adopts the vacuum tire for
extrusion as a plate conveying and clamping mechanism, adopts reverse
extrusion grinding of the grinding belts and the foaming rubber belts, and achieves the processes of two-way
extrusion material conveying and two-way extrusion reverse grinding; andadjustable clamping plate platform has small extrusion force, large
friction force and high grinding efficiency.