| 摘要 |
A die assembly (12) has a die (14) with a nose (16) positioned to project into the hollow end (106) of an insert (102) being installed in a panel workpiece (100). A pilot pin (32) projects outwardly form the center of the nose (16) and into the insert (102) when the workpiece (100) is properly aligned. The pin (32) is mounted to slide axially relative to the die (14). The pin (32) is biased outwardly but yields under forces exceeding a predetermined magnitude. When the panel (100) is misaligned and a ram (8) urges the panel (100) against the pin (32), the pin (32) retracts to prevent damage to the panel (100). Thrust plates (64) support the die (14) and move radially inwardly when the pin (32) retracts. Feet (22) on the die (14) are received into grooves (70) on the thrust plates (64) to allow the die (14) to retract and thereby prevent the nose (16) from damaging the workpiece (100).
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