Movable support for gantry machining center

The utility model discloses a movable support for a gantry machining center, which belongs to the technical field of gantry machining centers and comprises a supporting cross beam, a sliding hoisting mechanism is arranged on the side wall of the supporting cross beam, T-shaped supporting foot stools are connected to two ends of the lower portion of the supporting cross beam, and a controller is connected to the side wall of each T-shaped supporting foot stool. A ground inserting assembly is arranged, a sliding wheel is used for driving a T-shaped supporting foot stand to move to the position of a gantry machining center, then a rotating motor is used for driving a threaded column to rotate, the threaded column rotates to drive a threaded sleeve to move, the threaded sleeve moves to drive a transverse rod, and the transverse rod moves to drive a ground inserting nail to move, pass through a penetrating hole and protrude out of a fixing box; the rotary motor is arranged in the gantry machining center and insert