Mechanical arm for boxing

The mechanical arm comprises a bottom plate, first hydraulic oil cylinders are fixedly connected to the two sides of the top of the bottom plate, a first supporting plate is fixedly connected to the tail ends of the first hydraulic oil cylinders, a servo motor is fixedly connected to the center of the bottom of the first supporting plate, and a rotating disc is fixedly connected to the output end of the servo motor. According to the clamping device, the second electric telescopic rod is arranged to drive the push plate to move, workpieces of different sizes can be conveniently and stably clamped, the angle of the second clamping plate can be adjusted through the micro electric telescopic rod, the workpieces of different shapes can be conveniently and stably clamped, and the clamping device is convenient to use and high in practicability. And a first hydraulic oil cylinder is arranged to drive a first supporting plate to ascend and descend, the overall height of the device can be conveniently adjusted, a secon