Positioning device for numerical control lathe

The utility model belongs to the technical field of positioning devices, and particularly relates to a positioning device for a numerically controlled lathe, which comprises a base table, a baffle is fixedly connected to one side of the top end of the base table, a limiting structure is arranged on one side of the baffle, a clamping structure is arranged on the limiting structure, a machining rod is arranged between the limiting structure and the clamping structure, and the machining rod is connected with the baffle. A threaded rod is arranged on the side wall of the baffle in a threaded connection and penetrating mode, the limiting structure comprises a supporting plate, one end of the threaded rod is connected to the side wall of the supporting plate through a bearing, and a vertical connecting plate is arranged at the other end of the threaded rod. The electric push rod is controlled to be opened and closed through the control button, the output end of the electric push rod pushes the base table to move on