Abstract: A rotary cutting tool is provided which, although it has a simple configuration, allows the arrangement of each cutting edge to be easily adjusted. A first cartridge mounting seat has an upper wall surface opposing an outer side surface of a cartridge and further has a first recessed part into which a protrusion is inserted and which comes into contact, at a bottom thereof, with a leading end of the protrusion. A second cartridge mounting seat has an upper wall surface opposing an outer side surface of a cartridge and further has a second recessed part into which a protrusion is inserted and which comes into contact, at a bottom thereof, with a leading end of the protrusion. A depth of the second recessed part is greater than a depth of the first recessed part. An amount of protrusion P of the protrusion is equal to or greater than the depth of the second recessed part.

Abstract: Provided is a cutting edge position adjustment mechanism for moving a cutting edge member mounted on a tool body with respect to the tool body to adjust the position of a cutting edge. The cutting edge position adjustment mechanism is equipped with a shaft member that extends between the tool body and the cutting edge member and threadably engages with the tool body and a nut member that threadably engages with the shaft member and abuts against the cutting edge member; a first screw section that threadably engages with the tool body and a second screw section that threadably engages with the nut member are provided coaxially on the shaft member at different positions along the direction of an axis line of the shaft member; and the thread pitch of the first screw section and the thread pitch of the second screw section are different from each other.

Abstract: A cutting tool for tube cutting machines includes a tool holder and a dismountable holder blade having replaceable cutting inserts. The tool holder includes a basic body, as well as a support body for the holder blade. There is arranged between the basic body and the support body a set-up body, by means of which the support body, and thereby the holder blade, can be set and fixed in the exact, desired spatial positions in the machine without time-consuming measuring and fine adjustment operations. In addition, the holder blade is fixed in the support body by means of a single simple screw, which allows a flexible mounting and dismounting of the same.

Abstract: A cutting unit includes a detachable head assembly with a cutting insert and holder. The mating spherical surfaces in both parts helps to get freedom of movement, hence helps in getting different rake angles. A set of pins helps getting correct center height for the cutting insert when spherical surfaces of both parts are not in contact with each other. The pins when lifted up gives point contact with spherical surface of the head assembly. The pins are moved in the holes provided in the holder with the help of screw-nut principle. The head assembly is clamped against holder using a clamping ball mechanism. The clamping balls are free to rotate in their respective seating area. Rake angles are changed by turning the head assembly manually. Once the required rake is set, the clamping balls are fastened.

Abstract: A cutting tool, such as a slotting cutter, includes a support disc rotatable in a predetermined direction on a central axis. The support disc is of a generally cylindrical shape has a plurality of cartridge-receiving pockets. A cartridge assembly is capable of being mounted to the pocket and includes a cutting insert with at least one cutting edge secured to each cartridge assembly. The cartridge assembly includes a tapered, threaded hole for receiving a tapered, threaded screw. The threaded hole is off-center to divide the lower portion of the cartridge assembly into two portions having different thicknesses and flexibility. A slot extends from the threaded hole to a bottom face of the cartridge assembly. The cartridge assembly expands as the tapered, threaded screw is received in the tapered, threaded hole to secure the cartridge assembly in the pocket.

Abstract: A metal-cutting mechanism includes an externally threaded screw and a set of non-rotatable insert holders spaced apart equidistantly along an axis of the screw. There are at least first, second, third, and fourth holders arranged axially in succession. The first holder is axially fixed. The second, third and fourth holders are axially movable relative to the first holder. The screw is rotatable relative to the second, third, and fourth holders and is connected thereto such that in response to each revolution of the screw, the second holder is moved in a first axial direction by a distance x, the third holder is moved in the first axial direction by a distance 2x, and the fourth holder is moved in the first axial direction by a distance 3x, whereby the equidistant spacing between the holders is changed by the distance x.

Abstract: A tool holder is provided for retaining a cutting tool which can be pivotally adjusted to align the cutting tool and provide a precise cut. The tool holder body has an area of reduced cross-section which serves as a fulcrum about which the cutting tool is pivotable. The tool holder body has a forward tool end for retaining a cutting tool and a rearward end operative to be mounted or retained on a lathe or other machine tool. The forward tool end can be pivotally adjusted about the fulcrum to align the cutting tool and provide an accurate, straight cut into a workpiece. A lever arm attached to the cutting tool end is adjustable to cause pivotal movement of the cutting tool by displacing the tool end laterally in response to the force of the lever arm when it is drawn toward or away from the tool holder body.

Abstract: A rotatable machine tool such as a precision boring tool has a head (2) that is detachably mounted on a shank type driving element (3). The head carries a removable cutting tip (9) and includes a bearing point (8) that wedgingly seats within a transverse slideway (7) in driving element (3). A slide (11), which is mounted in through bore (20) in head (2), has a male member (10) attached thereto which passes through a slot (24) extending between the bore (20) and an end face (19) of the head (2). Male member (10) is received within a bore (12) in driving element (3). A clamping screw (13) in drive element (3) interacts with male member (10) to cam it inwardly thereby clamping head (2) in position on drive element (3). The head (2) is transversely adjustable within slideway (7) by loosening screw (13) and adjusting opposed screws (32, 33) in head (2) which act on male member (10).

Abstract: The invention relates to a modular tool system consisting of a tool holder (10) with a fitting for a cutting insert holder (11) which, when released, is radially movable in relation to the tool holder by means of an adjusting screw (17) fitted in a threaded hole (16) in one of the holders and can be clamped with the tool holder by means of clamping screws (15). To provide an alternative radial adjustment of the tools or centred fitting without facilities for readjustment without a great deal of effort, the stop is a pin (18, 30) releasably securable in the holder, whereby at least one diameter of the pin is the same as that of the pin recess in the other holder and the blind hole in the first holder (20, 29), into which the projecting end of the pin enters and the hold for the adjusting screw opens perpendicularly thereto.

Abstract: A bar peeling tool includes a rotatable cutter head with circumferentially spaced cassettes. Each cassette comprises a toolholder and an adjusting device. The adjustment device comprises a setting unit provided with a protrusion which fits into an end of the toolholder. The protrusion includes a recess in which a wedge element is slidable. By sliding the wedge element, the toolholder is adjusted along a longitudinal axis of the cassette. Sliding of the wedge element is performed by means of set screws mounted in the toolholder at opposite ends of the wedge element. A clamping screw extends between the setting unit and the toolholder for clamping the wedge in the radial direction.

Abstract: A single point adjustable triangular carbide cutting insert holder designed to clamp the cutting insert with maximum possibility for regrind or grinding for secondary operations. The insert holder is arranged for use in a milling machine and is collet-mounted by its shank. The jaw clamps can be removed for placement of the cutting insert between them, and are then refitted in the cavity where they are tightened by adjustment of a screw. As the screw is tightened, the jaw clamps are drawn further within the cavity, and are rigidly clamped against the cavity walls by frictional contact. When partially released, the jaws can be rotated within the cavity, enabling direct adjustment of the cutting insert rake and relief angle as desired. The cutting insert is seated between the jaw clamps on a seating cam mounted at an edge of the inner jaw face, such that the exposed portion of the cutting insert is a maximum.

Abstract: A disc mill comprises a plurality of reversible cutter plates arranged in an alternating order and having an adjustable cutting width, a base body composed of at least two disc, a plurality of claw-like posts provided on each of the discs and carrying a respective one of the reversible cutter plates. The posts of one of the discs engage in a coupling-like manner in a chamber between two neighboring posts of the other disc.

Abstract: The present invention is a tool assembly comprising a tool block and a tool holder capable of delivering chip-breaking fluid to the tool holder without a fixed attachment to the tool holder. The tool block is formed with a tool shank cavity having a tool support surface. The tool holder includes a shank insertable into the tool shank cavity of the tool block. A fluid delivery passage is formed in the tool block which terminate in an outlet opening. A primary fluid passage is formed in the tool holder and terminates in a discharge orifice positioned to direct a fluid jet at the chip being removed from the workpiece. A fluid path provides a path for the flow of chip-breaking fluid from the outlet of the delivery passage to the inlet of the primary fluid passage throughout the entire range of relative movement between the tool block and holder.

Abstract: In known cutter heads, the centrifugal forces occurring at high rotational speeds may cause the occurrence of dilatations permitting the cutting edges of the cutting tools to shift from their adjusted positions. An object of the invention is the provision of a cutter head capable of being accurately and reliably adjusted for operation also at high rotational speeds.According to the invention, a clamping wedge 13 is provided with a skewed clamping surface 21b adapted to cooperate with a contact surface 21a of a cutter blade carrier 2 for clamping it in a groove 20 of a mounting body 1. The invention also proposes the provision of a prism wedge clamping system 10 for supporting the cutter head carrier 2 in the radial direction relative to the mounting body 1.

Abstract: A cutting-tool cartridge arrangement for rotary cutting-tools in which the cutting-tool cartridge assembly is mountable in a aperture provided in the body member of the cutting-tool. The cutting-tool cartridge assembly has a split bushing for insertion into the aperture in the body member of the tool and the bushing is annular in shape, has internal threads and has a slot in the wall thereof extending from the threaded inside surface to the outside surface to provide a pair of opposed surfaces resiliently movable towards and away from each other. A set screw aperture is provided in the body member of the tool into which a set screw may be inserted and tightened against the split bushing. The stud seat having external threads is threaded into the split bushing and the stud seat also has a cutting insert end having matching walls that match the wall configuration of the mounting walls of a frustum cutting insert.

Abstract: Adjustable cutting tool bit support, usable as in a stump cutter body, including adjustable jack for variable registration depth of cutting bit, a differential screw engaging differential threads in the body and jack for adjusting the jack position, a wedge clamp for locking engagement of the body and tool bit in adjusted position and a differential screw engaging differential threads in the respective wedge clamp and jack for positively moving said wedge clamp into an effective clamping engagement.

Abstract: A hollow housing (20) slidingly retains an extendable body (22) through an open end allowing forward and aft movement. A rotatable tool holding head (34) is adjustably connected to the body (22) and is free to rotate up to 180 degrees. Extendable adjustment in the form of a threaded shaft (44) and handwheel (46) provide the manual expansion movement by rotation of the wheel (46) located on the opposite end as the body (22). Radial movement is afforded by a similar handwheel (50) attached to the head (34) through a drive shaft (48). A slidable end (36) is attached to the head (34) and contains a removable cutting tool (38) that rotatably cuts away material from a rotated workpiece. In a variation of the body (20) an angular shape is added with or without a mounting slot. Also, a pair of servo motors (62) and (64) may replace the handwheels for electromechanical adjustment of the device incorporating another embodiment.

Abstract: A tool cartridge to be fastened to a boring bar for line boring operations comprising a pair of split legs on the tool cartridge. Each leg has an insert with a threaded bore having a different pitch. A differential screw comprising two threads on the shaft corresponding to the two different threaded bores on each insert effects a micro-adjustment of the radially moveable leg on the cartridge holding the cutting tool when the differential screw is rotated.

Abstract: The shaft (1) of the drilling tool has a support (3) fixed in a cylindrical blind hole (2) by means of a fixing screw (10). The support has a rear cylindrical portion (3a) and a forward half-cylindrical portion (3b). The forward portion has a replaceable cutting insert (4) fixed in it by means of a clamping screw (8). This is screwed into a first thread (9) of the support, and this thread extends perpendicularly to the seating (5) provided for the replaceable cutting insert. The support has a second thread (9) running parallel to the first thread and this locates the fixing screw which is screwed into the support from below passing through an oblong hole (11) in the shaft. The base (2a) of the blind hole is provided with an adjusting screw (12) which is arranged so as to be displaced from its axil.

Abstract: A forming tool generally having a dove-tail shaped machine connector provided with an integral outwardly extending front support which in cooperation with the front surface of the tool is adapted to receive a forming insert. The front support is provided with a slot for receipt of locking wedges as to lock the insert in position with respect to the tool. The front support is positioned below the working edge of the insert and the tool is further provided with means for positioning the insert laterally with respect to the slot.