| 摘要 |
<p>A punch press for cutting windows in a ball cage. The ball cage is held in an established position. A first press assembly includes a first frame member and a punch assembly on a first surface of the cage, for cutting a portion of the cage. A second press assembly includes a second frame member, a cutting bed for supporting a second surface of the cage, said first and second surfaces being opposite surfaces of the cage, around the portion to be cut by the punch assembly. It also includes a counterpunch for opposing the punch assembly on the second surface. Pressure is applied to the second press assembly toward the punch assembly.</p> |
