Arc angle rechecking device based on grounding flat iron cold bending

The invention discloses a bent arc angle rechecking device based on grounding flat iron cold bending, which comprises a mounting brace and a side brace fixed on the outer side of the mounting brace, and one end, symmetrical to the side brace, of the mounting brace is fixedly connected with a clamping angle regulation and control piece used for adjusting a clamping inclination angle of a workpiece in a rechecking state; after a re-checking contact piece in the workpiece inclination angle attaching component is in contact with the face where a current workpiece is located, an alignment clamping strip synchronously moves along with attaching rotation after the re-checking contact piece makes contact with the workpiece, that is, after the alignment clamping strip is overlapped with the angle position marked by an inclination angle identification mark, the angle serves as a standard selected angle, and the workpiece inclination angle is accurately attached to the workpiece. Then, after manual cold bending of the w