Abstract: A modular drill apparatus (100) includes: a shank (110) having a pocket (112); a cylindrical post (117) centrally secured within a bottom (114) of the pocket (112); a cutting tip (130) including a lower portion (131) including a central bore (136) which receives the cylindrical post (117), an upper portion (132) and a channel (134) therebetween; and an insert assembly (150) interfitted within and supported by the channel (134), the insert assembly (150) being expandable along a length thereof for securing the cutting tip (130) to the shank (110) within the pocket (112) by providing an interference fit and retractable along the length thereof for releasing the cutting tip (130) from the pocket (112) by overcoming the interference fit.

Abstract: A modular cutting tool includes a base body, an intermediate body removably attached to the base body, and a cutting head at least partially disposed within a pocket of the intermediate body. A tooling tree allows a user to select a different combination of the base body, the intermediate body and the cutting head of the cutting tool based on desired physical properties of each component.

Abstract: A cutting tool includes a base body and a cutting head at least partially disposed within a modular pocket of the base body. The modular pocket is formed by at least one wall section removably attached to the base body. In one variation, a non-removable portion of the base body also forms part of the modular pocket. In another variation, the modular pocket is formed by two removable wall sections on opposite sides of the modular pocket. In yet another variation, the removable wall sections include a clamping portion to exert a downward force on the cutting head to enable mounting the cutting head in the modular pocket using an interference fit.

Abstract: A modular drill including a shank having a shank bore therein, a guide pin tip disposed in the shank bore, a cutting tip, and a connection shaft coupled to the cutting tip, the connection shaft having a connection shaft sidewall and a guide path therein for guiding the guide pin tip therethrough while the connection shaft moves through the shank bore.

Abstract: A modular boring head includes a tubular main body having an internal thread with a first pitch and a pair of axially extending cantilevered members. A movable rod engages the tubular main body such that the movable rod is movable with respect to the tubular main body in an axial direction, D. The movable rod has an internal thread with a second pitch different than the first pitch. A leadscrew is disposed within the tubular main body and has a plurality of gear teeth. Rotation of the leadscrew causes the pair of axially extending cantilevered members of the tubular main body to cooperatively engage with the plurality of gear teeth of the leadscrew in such a manner so as to produce an audible and tactile click, each click being indicative of a distance the movable rod is displaced with respect to the tubular main body.

Abstract: A modular drill includes a shank, a retaining pin, a cutting insert, and a locking pin. The shank includes a shank bore having an axial direction leading into the shank bore, and a locking pin opening. The retaining pin includes a retaining pin shaft axially movable positioned with the shank bore, the retaining pin shaft having a locking pin engagement surface. The retaining pin includes a retaining pin head having a retaining pin head engagement surface. The cutting insert includes a cutting insert passage for passing the retaining pin head therethrough; and a cutting insert cavity having a cutting insert engagement surface for engaging the retaining pin head engagement surface. The locking pin is for positioning within the locking pin opening and engaging with the locking pin engagement surface to force the retaining pin shaft to move further in the axial direction.

Abstract: A modular drill including a shank having a shank bore therein, a guide pin tip disposed in the shank bore, a cutting tip, and a connection shaft coupled to the cutting tip, the connection shaft having a connection shaft sidewall and a guide path therein for guiding the guide pin tip therethrough while the connection shaft moves through the shank bore.

Abstract: The invention describes a rotary cutting tool, in particular a drill, which comprises a first cutting tool part having at least one cutting edge and a second cutting tool part which comprises a cutting tool shank. The first cutting tool part and the second cutting tool part are releasably connected to one another via a coupling mechanism which comprises a coupling cam that is mounted on one of the two cutting tool parts such that it can rotate about an axis of rotation and, in a coupling position, abuts an engagement surface on the other cutting tool part. The invention also presents a cutting tool part, in particular a cutting tool base, and a further cutting tool part, in particular a cutting tip.

Abstract: A device for adjusting an adjustment mechanism of a cutting tool includes a main body disposed about a longitudinal axis. The main body has a handle portion disposed at or about a first end of the main body which is structured to be gripped by a hand of an operator and a feature structured to engage a correspondingly-shaped feature of the adjustment mechanism disposed at a second end of the main body opposite the first end. The device further includes a first element fixedly coupled to the main body; a second element rotatably coupled to the main body such that the second element is freely rotatable about the longitudinal axis, the second element having a total mass which is disposed unevenly about the longitudinal axis; and an arrangement for determining the relative positioning of the second element in regard to the first element.

Abstract: A device for adjusting an adjustment mechanism of a cutting tool includes a main body disposed about a longitudinal axis. The main body has a handle portion disposed at or about a first end of the main body which is structured to be gripped by a hand of an operator and a feature structured to engage a correspondingly-shaped feature of the adjustment mechanism disposed at a second end of the main body opposite the first end. The device further includes a first element fixedly coupled to the main body; a second element rotatably coupled to the main body such that the second element is freely rotatable about the longitudinal axis, the second element having a total mass which is disposed unevenly about the longitudinal axis; and an arrangement for determining the relative positioning of the second element in regard to the first element.

Abstract: A boring head includes a housing having a first end configured to be coupled to a machine tool and a second end positioned opposite from the first end with the housing defining a central passageway. The boring head also includes a diameter adjustment mechanism comprising a sliding holder received by the housing and movable relative to the housing with the sliding holder configured to be coupled to a cutting insert and a balancing mechanism having a balancing mass. The balancing mechanism is configured to move the balancing mass when the sliding holder is moved. The balancing mass is aligned with the sliding holder in a direction extending about perpendicular to a longitudinal axis of the housing.

Abstract: A boring head (10) having a movement transmission mechanism for selectively moving a cutting insert (20) a desired amount. The movement transmission mechanism includes a rotatable member selectively radially displacing the cutting insert the desired amount in a first direction and a primary member selectively radially displacing a balancing mass (50) in a second direction opposite the first direction while also axially displacing the balancing mass. The displacement of the balancing mass in the second direction effectively counters the displacement of the cutting insert in the first direction such that rotational balance of the boring head is automatically maintained.

Abstract: A boring head (10) having a movement transmission mechanism for selectively moving a cutting insert (20) a desired amount. The movement transmission mechanism includes a means for selectively radially displacing the cutting insert the desired amount in a first direction and a means for selectively radially displacing a balancing mass (50) in a second direction opposite the first direction while also axially displacing the balancing mass. The displacement of the balancing mass in the second direction effectively counters the displacement of the cutting insert in the first direction such that rotational balance of the boring head is automatically maintained.

Abstract: A boring head includes a housing having a first end configured to be coupled to a machine tool and a second end positioned opposite from the first end with the housing defining a central passageway. The boring head also includes a diameter adjustment mechanism comprising a sliding holder received by the housing and movable relative to the housing with the sliding holder configured to be coupled to a cutting insert and a balancing mechanism having a balancing mass. The balancing mechanism is configured to move the balancing mass when the sliding holder is moved. The balancing mass is aligned with the sliding holder in a direction extending about perpendicular to a longitudinal axis of the housing.