| 摘要 |
A punch head includes a punch pin and a punch housing supporting the punch pin. The punch housing includes a slot for receiving one or more workpieces to be punched. The slot defines a stack height SH. The punch housing further includes first and second walls, at least one of the first and second walls defining a wall thickness T. Each of the first and second walls also includes an aperture for receiving a pivot pin coupling a punch pin actuation member to the punch housing. A ratio of the wall thickness T to the stack height SH is greater than 0.9.
|
