Large cargo carrying robot

The invention relates to the technical field of robots. A large cargo carrying robot comprises a base and a clamping suction cup device, a motor is fixedly connected to the inner wall of the base, a connecting rod is fixedly connected to the surface of the base, a heavy block is fixedly connected to the end, away from the base, of the connecting rod, the clamping suction cup device is located above the base, the clamping suction cup device comprises a stretching rod, the stretching rod is fixedly connected with the upper surface of the base, a fixing rod is fixedly connected to the upper surface of the stretching rod, a sliding groove is formed in the inner wall of the fixing rod, sliding blocks are slidably connected to the inner wall of the fixing rod, the number of the sliding blocks is two, the two sliding blocks are arranged in a mirror image mode, two telescopic pressing blocks are fixedly connected to the sides, close to each other, of the two sliding blocks, and a positioning groove is formed in the i