Screw grooving device

The utility model relates to the technical field of screw grooving, and discloses a screw grooving device which comprises two supporting rods, a workbench, a protective cover, a driving motor, a grooving blade and a driving assembly, a cleaning mechanism is arranged at the top of the workbench, and the cleaning mechanism can recycle a large amount of scrap iron and cannot be blocked. The cleaning mechanism comprises a water tank fixedly installed on the outer wall of the top of the protective cover, a water pump is fixedly installed on the outer wall of the top of the water tank, and a water outlet pipe is fixedly installed at the water outlet end of the water pump. According to the screw grooving device, under the action of a water pump, a water outlet pipe, a sleeve, a circular spray head and an electric lifting rod, the inner wall and the internal structure of a protective cover are cleaned in an all-around mode, scrap iron and water are fused and then collected into a flow guide groove, the mixture is dis