Three-chamber high-pressure gas quenching furnace for cutter heat treatment

The utility model discloses a three-chamber high-pressure gas quenching furnace for heat treatment of a cutter. Relating to the technical field of cutter heat treatment, the device comprises a fixed base and a gas quenching furnace, the gas quenching furnace is fixedly arranged at the top of the fixed base; wherein a high-temperature gas quenching chamber, a preheating chamber and a cooling chamber are formed in the gas quenching furnace from top to bottom; a first heat insulation mechanism and a second heat insulation mechanism are arranged between the high-temperature gas quenching chamber and the preheating chamber; a third heat insulation mechanism and a fourth heat insulation mechanism are fixedly arranged between the preheating chamber and the cooling chamber; a water storage cavityis formed in one side of each of the preheating chamber and the cooling chamber; an air guide pipe penetrates through the water storage cavity; a first motor is fixedly arranged on one side of the cooling chamber; the high-te