Roller air-blast quenching machine

The invention discloses a roller air cooling quenching machine which comprises a quenching machine base, an air cooling assembly, a plurality of heating assemblies and a clamping tool assembly, a bearing frame is arranged on the inner side of the quenching machine base, the surface of the bearing frame is rotationally sleeved with a rotating bearing base, and the heating assemblies are evenly distributed on the periphery of the rotating bearing base; and the heating assembly comprises a heating pipe, a first rotating ring, a second rotating ring and a moving supporting table, the heating pipe is fixed to the surface of the rotating bearing seat, a sliding rail groove is formed in the inner side of the heating pipe, and ball pin lugs slidably connected to the inner side of the sliding rail groove in a sleeving mode are fixedly installed on the two sides of the first rotating ring. According to the cooling device, the novel wind tunnel type air cooling structure is arranged, low-temperature cold air is fed unde