Soft point controllable induction hardening device for camshaft of marine diesel engine

According to the soft point controllable induction quenching device for the camshaft of the marine diesel engine, a sensing body is connected to the right end of a conductive connecting device, a cam on the camshaft is located in an induction heating area in the middle of the sensing body, and cushion blocks are fixed to base circle parts of the top face and the bottom face of the sensing body; and a cooling device for cooling the heated cam is arranged on the sensing body. On the premise that the equipment cost is not increased and the production efficiency and the machining quality are guaranteed, the cooling device is arranged, the center hole of the sensing body is matched with the cam on the cam shaft in shape, and the sensing body is connected with the output end of the transformer through the conductive connecting device; the defect that soft spots and soft belts are generated due to the fact that the base circle part of the cam does not reach the required temperature during induction quenching of the