Violent drill for 90-degree machining

The violent drill comprises a supporting plate, a bearing hole is formed in the inner side of the supporting plate in a penetrating mode, a center shaft is movably installed on the inner side of the bearing hole in a penetrating mode, a flat key is installed at the top of the center shaft, the center shaft is sleeved with a deep groove ball bearing, and the deep groove ball bearing is installed on the inner side of the supporting 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 cooling liquid into the guide pipe through the pipeline, the guide pipe co