Scanning type cathode electrochemical finishing processing device

The utility model discloses a scanning type cathode electrochemical finishing machining device which comprises a movable platform, a connecting plate, a cathode clamp, a tool cathode rod, a tool cathode, an anode workpiece, a supporting shaft, a fixing ring, a sealing piece, an electrolyte tank, a carbon brush, an insulating pad, a three-jaw chuck, a motor, a guide rail and a vertical bearing seat. The connecting plate is located below the movable platform and fixedly connected with the movable platform. A cathode clamp is arranged below the connecting plate and is in threaded connection with the connecting plate; a tool cathode rod is arranged below the cathode clamp and is in threaded connection with the cathode clamp; the tool cathode is arranged at the bottommost part and is also fixed on the tool cathode rod through threaded connection; the fixing ring clamps the internal supporting shaft by screwing the screw, so that the anode workpiece can be firmly fixed on the shaft; the device is simple to operate,