Limiting device of bending machine

The utility model relates to the technical field of bending machine machining, in particular to a bending machine limiting device which comprises a workbench, an upper die, a lower die and a limiting mechanism, the upper die is arranged at the rear end of the workbench, the right end of the workbench is fixedly connected with a motor shell, a motor is fixedly installed in the motor shell, and one end of an output shaft of the motor is fixedly connected with the lower die. The upper die comprises a movable part and a fixed part, the movable part and the lower die are arranged into a whole, and a limiting mechanism is arranged on the outer surface of the lower die and on the side away from the workbench. The limiting mechanism comprises a fixed block, a connecting rod, a connecting plate and a limiting block, the outer surface of the movable part is fixedly connected with the fixed block, and the outer surface of the fixed block is fixedly connected with the connecting plate through the connecting rod; accordin