According to the file, Richard Walsh, the county of Grayson, and the State of Texas had invented and applied for US patent in 1894.
[1] Punch presses are developed for high flexibility and efficient processing of metal stampings.
Programming is done on a PC equipped with appropriate software that can be part of the machine or a connected external workstation.
All the punches in a work piece are shown on the screen making programming mistakes easily detected.
Therefore, recent tool systems are designed for fast and convenient change of punches and dies.
A lot of organizational effort and interface management is saved, if the CNC punch press is connected to the previous and subsequent process.