Spiral bevel gear sensing pressure quenching automatic production line mainly by induction heating machine, frequency power supply, loading and unloading robot, quench presses and other auxiliary units, the production line for the automotive, agricultural and other spiral bevel structure of passive gear, through the use of carburizing slow cooling induction heating protection pressed for hardening heat treatment process to ensure that the parts after quenching deformation control requirements. Use of industrial robots to replace human to complete loading and unloading work, reduce labor intensity, only one person can operate multiple production lines.