Thread rolling tool for bolt

The utility model belongs to the technical field of bolt thread rolling tools, and particularly relates to a bolt thread rolling tool which comprises a workbench, a fixing plate is fixed on the workbench, a first thread rolling plate is fixed on the fixing plate, a plurality of placing adjusting assemblies are fixed on the fixing plate, the workbench is provided with a first fixing seat and a second fixing seat, and a motor is fixed outside the first fixing seat. The first fixing seat and the second fixing seat are provided with ball screws, the ball screws are fixedly connected with an output shaft of the motor, the ball screws are in external threaded connection with a movable seat, and the movable seat is fixedly provided with a second thread rolling plate; a plurality of step bolts are placed through the placing and adjusting assembly, the motor is started to enable the ball screw to rotate, and the movable seat and the second thread rolling plate are driven to move left and right in a reciprocating mode,