Automatic stacker crane

The utility model discloses an automatic stacker crane. The automatic stacker crane comprises a clamping device and a multi-shaft rotating manipulator, the clamping device comprises a support, a sliding platform, a vertical driving mechanism, a first air cylinder, a clamping plate, a bottom plate and a swing driving mechanism, the support is connected to the multi-axis rotating mechanical arm, the sliding platform is vertically arranged on the support in a sliding mode, and the vertical driving mechanism is arranged on the support and drives the sliding platform to slide; the first air cylinder is arranged on the sliding platform, and the output end of the first air cylinder is connected with the clamping plate so as to drive the clamping plate to transversely slide. One end of the bottom plate is pivoted to the lower end of the support, and the swing driving mechanism is arranged on the support and drives the bottom plate so that the bottom plate can swing in the direction close to or away from the clamping