ADJUSTABLE LENGTH PUNCH SET ASSEMBLY

摘要

An adjustable length punch assembly for adjusting the overall length of a punch having an axial adjustable punch driver and punch holder (14) retained at least in part within a punch guide sleeve (18) and biased axially with respect thereto by a biasing spring (32), of the type including means operable in a locking position for locking the punch driver with respect to the punch holder and for preventing length adjustment. The locking means is formed and operates by a locking component having at least n locking detents (55, 57, 59, 61) formed thereon that are retained in engagement with a corresponding set of N first detent stops (55', 57', 59', 61') formed in the punch holder in both the locking and release positions and a plurality of m x n second detent stops (70) formed in the axially adjustable punch driver for providing m x n possible engageable orientations of the at least n detents (55, 57, 59, 61) with respect to the axially adjustable punch driver.