ASSEMBLY FOR RETAINING A CUTTING INSERT IN A POCKET OF A TOOL HOLDER

摘要

An assembly (16) for retaining a cutting insert (14) in a pocket (12) of a tool holder (10) includes a locking pin (20, 20'), a spring (24) disposed in the bore (28) of the tool holder, a locking plate (22) disposed in the bore between the spring and the locking pin, and a set screw (26) for retaining the assembly. The locking plate (22) is biased against a ledge (28b) of the bore (28) to cause the locking pin (20, 20') to draw and retain the cutting insert (14) in a direction such that the cutting insert is held in a secured position against the pocket (12) of the tool holder (10). To release the cutting insert (14), a force is applied to the assembly (16) to counteract the biasing force of the spring (24). The locking pin 20' or the locking plate (22) may include a flat surface (20f, 22g) that cooperates with a flat surface (28a) on the bore (28) to act as a key to proper orientate the assembly (16) in the bore (28).