When the work piece is bent to a certain degree,the upper swaying block sways to the lower end together with the lower swaying block.

• 对多弯曲角零件,采用上下摆块式弯曲模结构,先摆动下摆块,待工序件弯曲至一定阶段时,上摆块与下摆块再同时摆动至下极点,一次即可成形多弯曲角零