Precision bending die for Z-shaped part

The utility model relates to a precision bending die for Z-shaped part, comprising an upper die and a lower die. The upper die comprises an upper die holder, a fixed female die, a movable male die, a die shank, a disk spring, a bolt, a tie plate, an upper guide plate, a guide sheath and an upper backup plate. The lower die comprises a guide post, a lower backup plate, a lower die holder, a location plate, a fixed female die, a movable male die, a support plate, a bolt, another support plate, a cap nut, a disk spring, a top bar, a movable locating pin, a spring, a cover plate, a lower guide plate, a screw, a back fixed plate, another screw and a front fixed plate. The precision bending die for Z-shaped part simplifies a Z-shaped part as two V-shaped parts to bend by employing floating male dies and female dies. Disk springs provide adjustment force for bending, and bending process has no slide phenomenon between plates and working surfaces of dies, thereby greatly avoiding friction caused by adopting traditional bending modes, increasing facial quality of bending parts, and reducing rebound phenomenon. The precision bending die for Z-shaped part is characterized by low cost, safe operation and high efficiency.