Clamping device for forge piece machining

The utility model discloses a forge piece machining clamping device which comprises an operation table, connecting columns are fixedly connected to the four corners of the top of the operation table respectively, a top plate is fixedly connected to the tops of the connecting columns, fixing blocks are fixedly connected to the middle positions of the two sides of the operation table respectively, and the fixing blocks are fixedly connected with the top plate respectively. And screw rod motors are fixedly connected to the middle positions of the tops of the two fixing blocks. According to the device, through linkage among a first servo motor, a driving bevel gear, a driven bevel gear, a limiting column, a bidirectional threaded rod, a second nut pair, a mounting plate and a limiting block, forgings with different lengths can be fixed in the using process, and through an electric push rod and a clamping block which are arranged on the limiting block, the forgings with different lengths can be fixed; according to