Violent drill for 90-degree machining

The utility model discloses a violent drill for 90-degree processing, which comprises a support plate, a bearing hole is arranged on the inner side of the support plate in a penetrating manner, a central shaft is movably arranged on the inner side of the bearing hole in a penetrating manner, a flat key is arranged at the top of the central shaft, a deep groove ball bearing is sleeved on the outer side of the central shaft, and the deep groove ball bearing is arranged on the inner side of the support plate. The two ends of the center shaft are sleeved with check rings, the check rings are located on one sides of the deep groove ball bearings, a machine body is installed on the outer side of the center shaft and is of an L-shaped structure, and a guide rail is installed on the inner side of the machine body. The cooling kettle and the miniature booster pump are installed, during work, the miniature booster pump operates to suck out cooling liquid in the cooling kettle, the miniature booster pump conveys the coo