| 摘要 |
A punch press includes an upper metal mold mounting board 2 mounting the upper metal molds 16 and a lower metal mold mounting board 3 mounting the lower metal molds 17. A notch portion 20 or bore for exchange of a lower metal mold is provided in the upper metal mold mounting board 2. When the lower metal mold 17 is mounted or dismounted, the notch portion 20 or bore provided in the upper metal mold mounting board 2 is positioned above the lower metal mold 17 to be exchanged or its mounting hole, thereby mounting or dismounting the lower metal mold 17 through the notch portion 20 or bore.
|
