Machine tool base clamping device

The utility model provides a machine tool base clamping device. The machine tool base clamping device comprises a lifting mechanism and a pressing mechanism which are arranged at the two ends of the top face of the same mounting plate. The lifting mechanism comprises a lifting column, a lead screw is arranged in the lifting column in a threaded fit mode, the lower end of the lead screw is connected to the mounting plate, a worm gear is coaxially arranged on the lower section of the lead screw, a worm is meshed with the worm gear, and the tail end of a worm spindle is located on the outer side of the mounting plate. The pressing mechanism comprises a stand column arranged on the top face of the mounting plate, a pressing plate and a bottom plate used for pressing the machine tool base are rotationally arranged at the top of the stand column, the rotating axis of the pressing plate is parallel to the mounting plate, and a limiting groove and a rib plate used for clamping the machine tool base are formed in the