Mechanical-activated ID grooving tool

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, CL, 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-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 piston-receiving portion of the body further includes at least one helically-shaped flute for facilitating removal of chips.

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, CL, 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-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;
• 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;
• and
• a fluid channel extending from the shank end to the working end of the shank;
• 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.