Defect detection equipment and method for hot coiling spring

The invention relates to the technical field of hot coil spring detection, and discloses a defect detection device and method for a hot coil spring, the defect detection device comprises a probe assembly and a plurality of coil windings arranged on the probe assembly; the excitation power supply is connected with the coil winding and the conductor wire of the excitation power supply; a current detector disposed on the conductive line; wherein the probe assembly is an assembly with a flexible structure, so that the probe assembly can be attached to the curved surface of the hot coiling spring to be detected; the current detector is used for detecting current data on a circuit between the coil winding and the excitation power supply when the excitation power supply switches on excitation voltage to the coil winding and moving along with the probe assembly attached to the surface of the to-be-detected hot coiling spring, so that whether defects exist on the surface of the to-be-detected hot coiling spring or not