Heavy boring device for cylinder sleeve machining

The utility model discloses a heavy boring device for cylinder sleeve machining, which belongs to the field of cylinder sleeve machining and comprises a base and two clamping seats slidably mounted on the base, lower clamping plates are fixedly connected to the lower ends of the sides, close to each other, of the two clamping seats, and upper clamping plates are slidably mounted above the positions, close to the lower clamping plates, of the clamping seats. A first motor is fixedly mounted at the top of the clamping seat, a vertical screw rod is fixedly connected to the output end of the first motor, a connecting seat is in threaded connection with the vertical screw rod, the connecting seat is fixedly connected with the upper clamping plate, a second motor is fixedly mounted at one end of the base, and a two-way screw rod is fixedly connected to the output end of the second motor; the two clamping seats are in threaded connection with the two ends of the two-way screw correspondingly. The bottom end of the c