Assistive grinding tool and drill bit grinding machine

The utility model relates to a grinding auxiliary tool and a drill bit grinding machine, which comprise an auxiliary mounting rack and a drill bit rotating mechanism, and the drill bit rotating mechanism is mounted on the auxiliary mounting rack; the auxiliary mounting frame comprises a mounting base, a mounting plate is arranged on the mounting base, and the mounting plate is horizontally located right in front of the surface of the grinding wheel; an inclined plate is arranged on the side surface of the mounting plate, and the included angle between the inclined plate and the mounting plate is 20-50 degrees; the drill bit rotating mechanism comprises a connecting plate, the connecting plate is slidably arranged on the inner side inclined face of the inclined plate, a gear groove is formed in the connecting plate, a roller is arranged on the gear groove in a matched mode, and the roller is perpendicular to the connecting plate; hollow handles are arranged in the centers of the rollers; a disc is sleeved on t