Automatic cleaning machine for shaft parts

The utility model provides an automatic cleaning machine for shaft parts. The automatic cleaning machine comprises an automatic feeding part, a lower spraying and washing part, a middle spraying and washing part, an air-drying part, a discharging part and a cleaning fluid box, the lower spraying and flushing part comprises a cleaning bin, a sliding plate and first spraying pipes, the sliding plate is obliquely fixed in the cleaning bin, multiple sets of first spraying pipes are correspondingly arranged above the sliding plate, the cleaning liquid box is located on one side of the cleaning bin, and a communication part is arranged between the cleaning liquid box and the cleaning bin; the spraying bin is communicated with the cleaning bin, the plate chain conveyor comprises a horizontal conveying chain plate part and a climbing conveying chain plate part, barrier strips distributed at intervals are further arranged on conveying chain plates of the horizontal conveying chain plate part and the climbing conveying