Full-automatic material taking manipulator capable of stably clamping and preventing workpiece from slipping

The full-automatic material taking mechanical arm capable of stably clamping and preventing the workpiece from slipping comprises a supporting stand column, a motor, a steering column and an air cylinder, the motor is installed in the supporting stand column, the upper portion of the motor is connected with the steering column, a connecting plate is arranged on the outer portion of the upper portion of the steering column, and the connecting plate is connected with the upper portion of the connecting plate. A transmission gear is connected to the left side of the connecting plate, an adjustingplate is connected to the interior of the rear end of the connecting plate, an air cylinder is installed at the right end of the adjusting plate, a fixing base is connected to the lower portion of the air cylinder, a rotating shaft is connected to the interior of the fixing base, a first clamping block is connected to the exterior of the rotating shaft, and a second clamping block is connected tothe rear side of the firs