The utility model relates to the technical field of tire mold
processing, and provides an air hole
drill for a tire mold, which comprises a base, the rear side of the base is fixedly connected with a fixing frame, the top of the fixing frame is fixedly connected with an air cylinder, and the bottom of the output end of the air cylinder penetrates through the fixing frame and is fixedly connected with a motor. The hollow
drill bit is arranged to be matched with the air inlet
pipe, high-pressure
airflow is continuously sprayed into the air holes through the air supply holes, the
airflow rapidly brings
metal scraps generated by
machining out of the air holes along surface lines of the
drill bit, and the situation that the scraps are accumulated in
drill bit grooves to cause clamping or hole
diameter errors is avoided; meanwhile,
airflow cools the
drill bit and the inner wall of the air hole in real time, tool abrasion caused by high temperature is reduced, the service life of the
drill bit is prolonged, airflow circulation is formed by combining a filtering and exhausting
assembly and a hose, exhausted air containing scraps is conveyed to an air inlet
pipe again after being filtered, and continuous cleaning of the scraps and cyclic utilization of the airflow are achieved.