The present invention relates to one kind of hydraulic disc-spring type table vice. Technologically, the hydraulic disc-spring type table vice is provided with a pedestal possessing track and pin hole, a sliding block with dovetail groove fitting the track in the pedestal, a large nut possessing hole in end seat, a pin shaft inserted into the pin hole and the hole in the nut seat to fix the large nut onto the pedestal, a main driving screw meshed with the large nut, a hydraulic cylinder installed inside the cavity in the main driving screw and possessing a thrust screw, and a clutching locking device set between the main driving screw and the thrust screw. The hydraulic disc-spring type table vice has hydraulically and elastically aided clamping, and possesses the advantages of simple structure, convenient operation, and great and adjustable clamping force. |