This series of induction heating machines are suitable for inductive and tempering of various shaft parts. The machine tool consists of a bed, an induction heating power supply, a high temperature tempering power supply, a workpiece loading assembly, a heating sensor, a tempering sensor, a cooling system, etc., replacing the conventional well type furnace and the trolley type heating furnace. The PLC control system is used to realize automatic workpiece loading/unloading, heating, water spray cooling, high temperature tempering, and the like.