alibaba.comThe working principle of the manual thread rolling machine is based on the principle of thread rolling. Even if two pieces of the same thread are used, the thread rolling surface has the same tooth shape as the bolt thread and the same helix angle. When the thread rubbing plates move with each other, the bolt blank between the two thread rubbing plates is threaded. .The tooth plate is processed with helical tooth patterns, the tooth pitch is equal to the pitch of the thread to be obtained, and the angle of the tooth pattern is equal to the pitch angle of the thread. Place the workpiece between the two tooth plates and rub it with a force equal to the tooth height, and the required thread can be processed.