Quenching device for polish rod machining

The utility model relates to the technical field of quenching processing, and discloses a quenching device for polish rod processing, which comprises a support plate, a support frame is arranged above the support plate, a heating pipe is arranged on the surface of the support frame, a cooling box is arranged at the left end of the upper surface of the support plate, and a recovery assembly is arranged in front of the support plate. The dry ice recycling device comprises a supporting plate and a recycling assembly, the recycling assembly comprises a recycling box, a draught fan base is installed above the recycling box, and a discharging assembly is arranged at the right end of the upper surface of the supporting plate. Water vapor can be liquefied into water after touching a temperature guide plate, so that recovery of the water vapor is completed, after the polished rod is heated, a motor in the discharging assembly drives a lead screw to rotate, the right end of a supporting frame is tilted, the polished ro