Stacking mechanical arm

The invention discloses a stacking mechanical arm which comprises a walking guide rail. A rotating mechanism A is installed on the walking guide rail and is provided with a walking motor; a hydraulicpower pack is fixedly installed at the back end of the rotating mechanism A, a lifting mechanism is fixedly installed at the middle portion of the rotating mechanism A, a lifting oil cylinder is installed on the lifting mechanism, and a stretchable mechanism installing plate is installed on a piston rod of the lifting oil cylinder; a stretchable mechanism is installed in front of the stretchable mechanism installing plate and is provided with a stretchable oil cylinder, a rotating mechanism B is installed on a piston rod of the stretchable oil cylinder, and a clamping mechanism is installed infront of the rotating mechanism B; and the lifting oil cylinder and the stretchable oil cylinder are connected with the hydraulic power pack through pipes. The stacking mechanical arm is reasonable in design; a V-shaped clamp