| 摘要 |
PURPOSE: A press for processing a hole is provided to minimize process tolerance by changing the position of a pierce punch. CONSTITUTION: A press for processing a hole comprises a position determining plate(80) and a displacement applying unit. The top of the position determining plate is coupled to an upper die(50). A pierce punch(70) is mounted on the bottom of the position determining plate. The position determining plate moves the pierce punch from the upper die. The displacement applying unit is mounted on the position determining plate, and provides the position moving displacement of the pierce punch. |
