The application discloses a controllable automatic clamping hydraulic clamping device and a control method thereof, and belongs to the technical field of hydraulic clamping. The device comprises a clamping mechanism, a supporting mechanism, a driving mechanism, a pressing mechanism and a camera mechanism. The clamping mechanism clamps the workpiece through the cooperation of the clamping jaw A and the clamping jaw B; the driving mechanism adopts a
servo motor to drive a lead screw, drives a movable seat to realize horizontal feeding, and realizes accurate positioning through an internal
torque sensor; the pressing mechanism corrects the flatness of the surface of the workpiece through a cylinder-driven pressing plate; and the camera mechanism is used for collecting the image of the workpiece. The control method dynamically adjusts the pressing feeding amount by using a
fuzzy PID controller through image preprocessing, feature point extraction and position deviation calculation, and combines historical data to perform
adaptive optimization. The application realizes full
automation and high-precision control of workpiece clamping, and effectively improves the
machining quality and production efficiency.