Heavy multi-station crankshaft machining device

The utility model provides a heavy multi-station crankshaft machining device. Relating to the technical field of machining, characterized in that it is characterized in that it comprises, the device comprises a machine tool, a chuck, a tool plate, a crankshaft, a tail thimble and a sliding rail, the tool plates comprise the first tool plate and the second tool plate which are arranged in a mirrorimage mode. A plurality of holes are formed in the tool plate and are respectively used for sleeving, fixing and eccentric machining; the chuck is provided with a clamping jaw capable of adjusting thefixing position, a hole, used for eccentric machining, of the first tool plate can be correspondingly clamped and fixed in the center of the chuck, the tool plate is fixedly connected to the two endsof a crankshaft in a sleeving mode, the crankshaft provided with the tool plate is horizontally arranged on a machine tool through the chuck and the tailstock ejector pin, and eccentric rotation is conducted through rotation o