Bending die based on spring swinging male die

The invention relates to a bending die based on a spring swinging male die, belonging to the field of stamping dies. The die comprises a knockout rod, a die shank, a female die, a discharge block, a movable male die, locating plates, swing blocks, a guide plate, a die holder, an upper base plate, a fastening screw, springs, a lower base plate, screw rods, locating pins and axes of rotation, wherein through holes are processed at the T-shaped end of the die shank; the die shank is connected with the female die by screws; the knockout rod penetrates through the die shank and the female die; a thread is processed at the other end of the knockout rod and is used for connecting the knockout rod with the discharge block; the movable male die penetrates through the guide plate and the die holder; the other end of the movable male die is connected with the upper base plate by the fastening screw; the locating plates are respectively arranged at the left and right sides of the die holder; the swing blocks are connected with the movable male die by the axes of rotation and are respectively arranged at the two sides of the movable male die; the guide plate is fixedly connected on the die holder by screws; the springs are arranged between the lower base plate and the upper base plate; and the screw rods penetrate through the lower base plate, the springs, the upper base plate and the die holder. The die has a simple structure, is low in design and manufacturing costs and can achieve bending forming once.