| 摘要 |
PROBLEM TO BE SOLVED: To execute plural kinds of precise working by multi stage in one process and to inexpensively produce an excellent pressing article. SOLUTION: A multi stage working press die 1 is composed of plural working parts which abut and press an object to be pressed (bending part of a recessing part 37 and a projecting part 45, punching part of a punch 31 and a punch hole 47) and an essential rigidity member, and it has a cam slider 21 of being freely sliding between an inlet position and an outlet position. In working at the bending part, the cam slider 21 is positioned at the inlet position and it is acted for transmission of the pressing force. In working at the punching part, the cam slider 21 is positioned at the outlet position and it is composed without acting for transmission of the pressing force. Because a spring is not used conventionally for the transmission of the pressing force, the rigidity of the die is made high and pressing can be executed sharply even in the multi stage working. |
