Cold-stamping bending nondestructive device

A cold-stamping bending nondestructive device relates to cold-stamping processing technology, and comprises a bolt C (9) which drills through a mounting hole of a lower fixed plate (10) to be engaged with female screw in a lower end-face hole of a flip-flop plate back block (8), a bolt B (6) which drills through a mounting hole of an L-shaped flip-flop plate follow block (7) to be engaged with female screw in a lower end-face hole of a lower stripper plate (3), a spring and a bending terrace die (1) which are arranged between the lower stripper plate (3) and the lower fixed plate (10), a bolt A (5) which drills through a hole on the outer side face of an inverted L-shaped flip-flop plate positioning block (4) to be engaged with female screw in a hole located on the outer side-face of the flip-flop plate back block (8), and a flip-flop bending plate (20) which is horizontally positioned between the lower stripper plate and the flip-flop plate positioning block (4). The cold-stamping bending nondestructive devi