WEDGE-LOCKABLE REMOVABLE PUNCH AND DIE BUSHING IN RETAINER

摘要

A conventional ball lock mechanism has been replaced with a wedge (31) adapted to lock a tool, such as a punch, forming tool or die bushing in a retainer block (30) in which the tool can be accurately positioned relative to the retainer block. The tool is released by moving the wedge (31) away from the retainer block (30). The inclined surface (36) of the wedge (31) may be inclined upward or downward at an acute angle to the vertical, or the wedge may have both upwardly and downwardly inclined surfaces. The preferred method for forming the wedge is to cut it from a block of hardened tool steel with a wire electric discharge machine.