Quick-remodeling gear ring outer circle rough turning clamp

The utility model belongs to the technical field of machining, and discloses a quick-change gear ring outer circle rough turning clamp which comprises a hydraulic chuck, a clamping jaw is arranged on the right side of the hydraulic chuck, a clamp bottom plate is clamped on the right wall of the hydraulic chuck through the clamping jaw, and a positioning screw is fixedly connected to the right wall of the clamp bottom plate. A positioning screw rod is arranged on the right wall of the base, a limiting plate movably sleeves the positioning screw rod, a positioning nut is in threaded connection with the positioning screw rod, the positioning nut is extruded on the limiting plate, storage grooves are formed in the two sides of the interior of the limiting plate, movable plates are movably inserted into the storage grooves, a bolt is in threaded connection with the right wall of the limiting plate, and the bolt is extruded on the movable plate. According to the gear ring outer circle rough turning clamp capable of