Movable locking device for milling machine

The utility model discloses a movable locking device for a milling machine. The movable locking device for the milling machine comprises a dovetail (9), a dovetail groove (10), a gear shaft (8) and a positioning screw (5). The movable locking device is characterized in that the dovetail (9) is arranged on a cantilever; the dovetail groove (10), the gear shaft (8) and the positioning screw (5) are arranged on the machine body; a wedge (7) is arranged between the dovetail and the dovetail groove; a wedge rack (11) is arranged at the bottom of the wedge; a handle base (1) and a gear sleeve (6) are arranged on the gear shaft; a movable handle (2) is arranged on the handle base; a gear tooth (1) arranged on the gear sleeve is matched with the wedge rack; an annular groove (14) in the gear sleeve is matched with the positioning screw; a locking handle (4) is further arranged on the gear sleeve. With the adoption of the technical scheme, the movable locking device for the milling machine has the advantages of simple