Self-adaptive clamping system for curved surface workpiece

The utility model provides a curved surface workpiece self-adaptive clamping system which comprises a box body, a base, a clamping system, a self-locking system, a stepping motor and an electromechanical unit, the base is fixedly connected to the box body, a plurality of sliding rails I are arranged on the base, and the clamping system is connected with the sliding rails I in a matched mode; the clamping system comprises an air cylinder pressing plate, an air cylinder, a Y-shaped plate, a cylindrical gear, a sliding block I and a universal ball head, the air cylinder pressing plate is installed on the base, the air cylinder is installed in the middle of the air cylinder pressing plate, a push rod at the top end of the air cylinder is fixedly connected with the Y-shaped plate, the cylindrical gear is fixed to the Y-shaped plate and connected with the sliding block I in a matched mode, and the sliding block I is connected into the sliding rail in a sliding mode; the stepping motor is connected with the self-loc