Patent ID: 8561509

Claim:
A mechanical-activated ID grooving tool, comprising: a shank including a shank end and a working end, the working end including a tapered piston having an extension surface and a retraction surface forming an acute angle relative to a central longitudinal axis, C L , of the tool; a body disposed about the working end of the shank, the body including a shank-receiving portion and a piston-receiving portion, the piston-receiving portion including a pair of legs defining a central cavity therebetween, an insert cartridge received in the central cavity of the body, the insert cartridge including a tapered piston pocket having a piston-engaging face, a piston-retracting face, the piston-retracting face having a first portion and a second portion formed at an angle with respect to the first portion, the piston-engaging face adjacent the extension surface of the tapered piston and the piston-retracting face adjacent the retraction surface of the tapered piston when the tool is assembled, the insert cartridge having an insert-receiving pocket capable of having a cutting insert mounted thereon; a stopper disposed about a portion of the body; an end cap mounted to an end of the body; and a bushing disposed about a portion of the shank for allowing rotational movement of the shank, the body and the insert cartridge relative to the stopper, wherein axial movement of the tapered piston in a first direction causes the extension surface of the tapered piston into contact with the piston-engaging face of the insert cartridge, thereby causing the insert cartridge to move in a radially outward direction, and wherein axial movement of the tapered piston in a second, opposite direction causes the retraction surface of the tapered piston into contact with the piston-retracting face of the insert cartridge, thereby causing the insert cartridge to move in a radially inward direction, and wherein the shank further includes a drive member located between the shank end and the working end, the drive member including a plurality of leaves that contact a plurality of down feed springs when the tool is assembled, the plurality of down feed springs providing a biasing force between the shank and the body.