| 摘要 |
<p>The jig has a shank (31) and a head (33), and is constructed to substitute for a die with the head adjacent a frame and the shank fitted in a bore (11). The head has an axial hole (35) into which a punch (9) is inserted when an axis of the punch is aligned with an axis of the bore or when misalignment is within a predetermined range. A notch (37) permits viewing of the relationship of the punch and the hole. An independent claim is also included for a method for use in determining axial alignment or misalignment of a punch with respect to a die.</p> |
