Full-automatic piston cleaning machine

The invention provides a full-automatic piston cleaning machine, and mainly relates to the field of casting demolding. A full-automatic piston cleaning machine comprises a cleaning platform, a limiting hole is formed in the middle of the cleaning platform, sliding grooves are formed in the two sides in the limiting hole, adjusting plates are arranged in the sliding grooves in a sliding mode, shaft seats are arranged in mounting holes in a sliding mode, and clamping devices are rotationally arranged on the shaft seats. An arc-shaped limiting slide way is arranged on one side of the cleaning platform, a first limiting stopper and a second limiting stopper which can ascend and descend are arranged on the inner side of the limiting slide way, the position, where the first limiting stopper is located, of the limiting slide way is a cleaning station, the position, where the second limiting stopper is located, of the limiting slide way is a sawing station, and a lifting table is arranged below the sawing station. An