| 摘要 |
A punch die provided with: a punch body that includes a punch blade, a key, and, at the top thereof, a punch driver; a punch guide that includes an inner hole, which receives the punch body such that the punch body can move along the axis, and a key groove that is formed on the inner peripheral surface of the inner hole and extends along the axis and engages with the key; a retainer collar that is joined to the upper end of the punch guide in the axial direction such that the retainer collar can rotate about the axis, and through which the punch driver passes such that the punch driver can move; a punch head that is screwed into an upper end part of the punch driver to adjust the position of the punch driver; an elastic member that is positioned between the punch head and the retainer collar and impels the punch driver upwards; a plurality of recesses that are formed on the upper surface of the punch guide along the axis, are separated from each other in the circumferential direction, and which are recessed towards the outside in the radial direction relative to the axis; and a push button that is supported by the retainer collar and includes an engagement part capable of engaging with any of the plurality of recesses. |
