Heavy-load all-purpose manipulator

The invention discloses a heavy-load all-purpose manipulator, and belongs to the field of manipulators. A heavy-load all-purpose manipulator comprises a connecting piece, two fixing boxes are symmetrically fixed to the bottom of the connecting piece, a pneumatic clamping mechanism is arranged in front of the fixing box on the right side, a rigid clamping mechanism is arranged in front of the fixing box on the left side, and the pneumatic clamping mechanism comprises a U-shaped plate; through the arrangement of the U-shaped plate, the air inlet pipe, the air bag, the first air nozzle, the vacuum plate, the air cushion and the second air nozzle, on the basis of an original rigid mechanical arm, the pneumatic clamping function is enhanced, and the mechanical arm is used for clamping some fragile bottle-shaped and horn-shaped objects with irregular shapes or tubular objects with the inner walls needing to be grabbed; the mechanical arm is simple in structure, is matched with a mounting frame, a first motor, a fir