Punched plate manufacturing device

The invention discloses a punched plate manufacturing device. The punched plate manufacturing device comprises a punch and a die holder. The punch is connected with a punched plate manufacturing device body part, the lower portion of the punch is provided with a cutting edge used for punching a punched plate to be machined downwards, and the punch is further provided with a guide protrusion opposite to the cutting edge. The die holder is used for fixing the punched plate and provided with a groove located below the punch, and one side wall of the groove is arranged on one side of the outer side wall of the guide protrusion so as to prevent the punch from deviating away from the cutting edge in downward punching. According to the device, in the pressing punching process of the punch, the guide protrusion abuts against the side wall so as to prevent the punch from moving away from the cutting edge in downward punching, so that deviation of the cutting edge in pressing of the punch is avoided, punching accuracy of the cutting edge is guaranteed, the situation that the punch collides with other components due to deviation and is damaged is avoided, the service life of the device is guaranteed while the production cycle is shortened, and the use cost is lowered.