Rolled piece rolling lug automatic medium-frequency induction continuous heating device and application method thereof

The invention discloses a rolled piece rolling lug automatic medium-frequency induction continuous heating device and an application method thereof. The heating device comprises a frame, a state maintenance mechanism positioning servo module, a blank feeding clamping jaw longitudinal servo module, a lifting device, a blank feeding clamping jaw transverse servo module, a blank feeding clamping jaw,a state maintenance mechanism, a support part and a lifting device; the state maintenance mechanism positioning servo module and the blank feeding clamping jaw longitudinal servo module are arrangedon one side of the frame; the blank feeding clamping jaw transverse servo module, the blank feeding clamping jaw and the state maintenance mechanism are arranged on a frame cross beam; and the blank feeding clamping jaw is mounted on the blank feeding clamping jaw transverse servo module. The heating device adopts double clamping jaws with a certain lengths for cooperation to always maintain the heated parts of blanks in a