| Patent application number | Description | Published |
|---|
| 20080232910 | Cutting Tool and System for Attaching a Cutting Member to a Cutter - A system for attaching a cutting member to a cutter body includes a pin, a clamping bolt and an adjustment bolt. The pin has a longitudinal axis and at least a first attachment bore and a second attachment bore. The clamping bolt has a clamping section which is formed to releasably secure the cutting member to the cutter body and has a first attachment section which is formed to be releasably secured in the first attachment bore of the pin. The system may have an adjustment bolt that has an adjustment section which is formed to adjust the position of the cutting member relative to the cutter body and has a second attachment section which is formed to be releasably secured in the second attachment bore of the pin. | 09-25-2008 |
| 20080267724 | Tool Holder - A tool holder for holding a shank of a cutting member. The tool holder has a socket for receiving the shank and a set screw rotatable in a set screw hole to advance along a first direction; and at least one clamping member that applies a force to the shank along a second direction responsive to advance of the set screw in the first direction to clamp the shank in the socket. | 10-30-2008 |
| 20090035075 | CUTTING TOOL, TOOL BODY AND CUTTING INSERT THEREFOR - A cutting tool has a tool body and a cutting insert releasably retained in a pocket of the tool body. The cutting insert has first and second rear insert abutment surfaces and a third forward insert abutment surface and the pocket has first and second rear pocket abutment surfaces and a third forward pocket abutment surface. The first and second abutment surfaces are separated from the third abutment surface by a bore. The third forward pocket abutment surface can be either a socket recessed in a pocket base surface or a protrusion protruding from the base surface; and the third forward insert abutment surface can be correspondingly either a protrusion protruding from an inner surface of the insert or a socket recessed in the inner surface. | 02-05-2009 |
| 20090035076 | CUTTING TOOL AND CUTTING INSERT THEREFOR - A cutting tool has a cutting insert retained in an insert pocket by a retaining screw. The rear surface of the cutting insert has an insert engaging element that comprises first insert rear abutment surfaces that are spaced apart and make an insert engaging angle with each other. The rear surface of the insert pocket has a pocket engaging element that comprises first pocket rear abutment surfaces that make a pocket engaging angle with each other. In a retained position, the first insert rear abutment surfaces abut the first pocket rear abutment surfaces, second insert rear abutment surfaces abut second pocket rear abutment surfaces and insert lower abutment surfaces abut pocket lower abutment surfaces. | 02-05-2009 |
| 20090285644 | Cutting Tool and Cutting Insert Therefor - A cutting tool has a cutting insert retained within an insert pocket of an insert holder by a retaining screw. Spaced apart first insert rear abutment surfaces abut spaced apart first pocket rear abutment surfaces, a second insert rear abutment surface abuts a second pocket rear abutment surface, and spaced apart insert lower abutment surfaces abut spaced apart pocket lower abutment surfaces. The cutting insert has a first dimension taken between extremities of the insert side surfaces, a second dimension taken between extremities of the insert upper and lower surfaces, and, a fourth dimension taken between the insert lower abutment surfaces and the insert upper surface. The size ratio between the fourth dimension and the second dimension is in the range of 0.2 to 1, and, preferably, in the range of 0.55 to 0.6. The size ratio between the first dimension and the second dimension is in the range of 1 to 2. | 11-19-2009 |
| 20090285645 | Cutting Tool and Cutting Insert Therefor - A cutting tool for grooving and turning operations has a removably securable cutting insert. The cutting insert is clamped in an insert holder with a longitudinally extending insert receiving slot lower surface. The insert receiving slot lower surface has two spaced apart contact sections, including a first contact section at a rear end having a V-shaped slot clamping surface with a wedge angle α | 11-19-2009 |
| 20100061814 | Cutting Tool and Cutting Insert Therefor - A cutting tool includes an insert holder and a cutting insert releasably retained between upper and lower jaws of the insert holder. The lower jaw is provided with forward and rear projections. The forward projection has forward projection front and back abutment surfaces inclined, respectively, at first and second angles to a feed direction, the first angle being greater than the second angle. The cutting insert has a cutting portion adjacent a longitudinally extending shaft portion and a recess in a lower insert surface. The recess has front and back recess abutment surfaces inclined, respectively, at the first and second angles to a lower edge of the shaft portion. The forward projection front abutment surface abuts the front recess abutment surface, and the forward projection back abutment surface abuts the back recess abutment surface. | 03-11-2010 |
| 20100135736 | Tool Holder for Clamping an Insert Holder - A tool holder for clamping an insert holder has a main block, two clamping members and a single adjustment member. The main block has a longitudinal side surface with a longitudinal groove with upper and lower walls. The two clamping members include mirror symmetrical left and right clamping members interfacing with two inclined non-parallel planar ramping surfaces of the lower wall of the longitudinal groove. A blade-shaped insert holder is mounted in the longitudinal groove on the two clamping members. The adjustment member interfaces with the two clamping members, and when rotated causes each clamping member to move up its respective non-parallel planar ramping surface, decreasing the distance between the two clamping members and the upper wall of the longitudinal groove until a clamping force is uniformly applied between the insert holder and the upper wall of the longitudinal groove. | 06-03-2010 |
| 20100143059 | Cutting Tool Having Releasably Mounted Self-Clamping Cutting Head - A cutting tool has a tool shank and a replaceable cutting head resiliently secured to the tool shank by an interference fit between a male fixation member of the cutting head and a female fixation member of the tool shank. The male fixation member has a resilience slit. In each cross section of the cutting tool taken perpendicular to an axis of rotation of the cutting tool through mutual abutment regions, the cross sectional profiles of the mutual abutment regions are arcuate sectors. | 06-10-2010 |
| 20100150670 | Cutting Tool and Cutting Insert Therefor - A cutting tool includes one or more cutting portions, each including an insert pocket having a cutting insert releasably retained therein. The cutting insert has a bottom surface, including a plurality of surfaces, engaging a plurality of walls of the insert pocket in a plurality of sloping and non-sloping engagement regions. These engagement means provide secure and stable clamping of the cutting insert, and prevent displacement of the cutting insert during intensive cutting operations, such as high speed milling, e.g., by significantly decreasing the force exerted on the screw that fastens the cutting insert in the insert pocket. | 06-17-2010 |
| 20100178118 | Cutting Tool Having an Adjustment Mechanism - A cutting tool has an adjustment mechanism for adjusting the location of a cutting insert seated therein. The cutting tool has a tool body provided with an adjustment bore and an abutment member bore intersecting the adjustment bore, and also has an abutment member and a worm screw. The abutment member is located in the abutment member bore and the worm screw is located in the adjustment bore and screw threaded into the worm screw bore. The abutment member is located in a first location along the abutment member bore when the worm screw is in a first screw rotated position and the abutment member is located in a second location along the abutment member bore when the worm screw is in a second screw rotated position. | 07-15-2010 |
| 20100254773 | Cutting Tool and Cutting Insert Therefor - A cutting tool has a cutting insert releasably retained in an insert pocket. The insert pocket includes a supporting portion having support surfaces and a clamping portion including a socket having a socket wall, the socket extending rearwardly from the supporting portion. The cutting insert has a cutting portion with front abutment surfaces and an elongated locating portion extending rearwardly from the cutting portion. The cutting insert is retained in the insert pocket with the front abutment surfaces abutting the support surfaces and with the locating portion located in the socket with abutment surfaces of the locating portion in abutment with the socket wall. | 10-07-2010 |
| 20100254774 | Cutting Tool Assembly and Tool Holder Therefor - A cutting tool assembly for boring and internal grooving operations includes a tool head having a removably secured cutting insert at a forward insert receiving end and a rear mating end with a male or female type tool holder coupler in the form of an engagement protrusion or cutting holder receiving pocket. The tool head is fixed to a tool holder with a front mating end having a female or male tool head coupler in the form of a tool head receiving pocket or engagement protrusion. Following assembly, at least three abutting wall surfaces and an adjacent support surface of the tool holder coupler are in contact with at least three non-coplanar abutment surfaces and an adjacent supporting surface of the tool head coupler, respectively, and a fastening screw member extends through a through bore in the tool holder coupler engaging a threaded screw bore in the tool head coupler. | 10-07-2010 |
| 20100254775 | Cutting Insert Having Abutment Bars and Cutting Tool Therefor - A cutting tool has a cutting insert secured in an insert pocket. The cutting insert has two abutment bars located on its opposing side surfaces. The abutment bars of a respective side surface have generally coplanar outer surfaces which define an imaginary plane that does not intersect any portion of the respective side surface apart from the outer surfaces. The outer surfaces of one set of abutment bars engage a major wall of the insert pocket. | 10-07-2010 |
| 20100254776 | Cutting Insert having an Engagement Protrusion and Cutting Tool Therefor - A cutting tool with a cutting insert secured in an insert pocket. The cutting insert has a single outwardly protruding engagement protrusion located on its opposing side surfaces. The engagement protrusion of a respective side surface has an outer surface that defines an imaginary plane that does not intersect any portion of the respective side surface apart from that outer surface. The outer surface of one engagement protrusion engages a major wall of the insert pocket. | 10-07-2010 |
| 20100272522 | Cutting Insert and Cutting Insert Assembly - A cutting insert assembly having an insert pocket having a pocket bore, a cutting insert and a fastening member coupling the cutting insert in the insert pocket. The cutting insert having a cutting insert bore, a first surface, a second surface and a peripheral surface extending therebetween. The first and second surfaces meeting the peripheral surface at first and second peripheral edges, respectively, at least a portion of at least one of the first and second peripheral edges forming a cutting edge. The cutting insert bore having at least two portions, the smallest of which, has an oval cross section allowing a for quick replacing or indexing of the cutting insert, without having to completely remove the fastening member from the pocket bore. | 10-28-2010 |
| 20100272533 | Rotary Cutting Tool - A rotary cutting tool for reaming operations, including a generally cylindrically shaped tool shank with a longitudinal axis having a plurality of radially protruding and generally axially extending clamping wings, and a cylindrically shaped cutting head having a central bore and a plurality of axially extending cutting edges with an outer cutting diameter. The central bore has a plurality of circumferentially and alternately spaced bore sectors and bore recesses, where each bore sector has an outwardly inclined female clamping surface in clamping contact with an outwardly inclined male clamping surface of each clamping wing. A cylindrical shaped locking sleeve and a cylindrical shaped clamping nut assembled to the tool shank provide a means to adjust the clamping contact forces and the cutting diameter of the cutting head, and also enable removal and replacement of the cutting head without removal of the locking sleeve and clamping nut. | 10-28-2010 |
| 20100290846 | Cutting Insert Having Recessed Planar Portion and Cutting Tool Therefor - A cutting tool includes a cutting insert releasably retained therein. The cutting insert has at least a first non-planar side surface, which includes a planar portion that is recessed with respect to other portions of the side surface such as the cutting edges thereof. The planar portion may be spaced apart from the cutting edges associated with that side surface. The planar portion is the only portion of the side surface to engage an abutment region or regions of a supporting wall of the cutting tool. The cutting insert may be double-sided, and include a second, opposing side surface having a respective planar portion formed therein, wherein the two opposing side surfaces interchange positions upon indexing of the cutting insert. The planar portion of the second side surface, which does not engage the abutment region or regions of supporting wall, does not interfere with the cutting operation, or the functionality of the cutting insert. | 11-18-2010 |
| 20100303562 | Double-Sided Double-Ended Cutting Insert and Cutting Tool Therefor - A cutting tool includes a cutting insert releasably retained therein. The cutting insert has top and bottom surfaces and a peripheral surface extending therebetween. The cutting insert does not include any clamping bore for receiving a clamping component therein. The cutting insert may having unitary, one-piece construction and be formed of a superabrasive material. The cutting insert may have a two-headed arrow shape, or similar shapes, such that the body of the cutting insert is small relative to the cutting regions thereof. The cutting tool includes a top clamp for clamping the cutting insert in an insert pocket. The top clamp has an asymmetrical shape and engages the cutting insert in one engagement region on the top surface, and in one engagement region on the peripheral surface. The cutting insert engages the insert pocket at the bottom surface, and in three spaced apart engagement regions on the peripheral surface. | 12-02-2010 |
| 20110013995 | Rotary Cutting Tool and Cutting Insert Therefor - A cutting insert used in rotary cutting tools for performing turning spinning operations has an upper surface and an opposing base surface with a peripheral surface therebetween, the peripheral surface intersecting the upper surface to form a cutting edge. The cutting edge may be a continuous circular cutting edge. The upper surface has rotational asymmetry about an insert axis passing between the upper surface and the base surface, by virtue of having at least one spiral shaped protrusion with a chip deflection distance which continuously increases in a rotational direction about the insert axis for greater than 180°. The cutting insert is assembled to a cutting tool body having a shank portion and a cutting portion sharing a longitudinal axis, the insert axis being aligned with the longitudinal axis and the cutting insert secured in an insert receiving pocket of the cutting portion. | 01-20-2011 |
| 20110110733 | Cutting Tool and Cutting Insert Therefor - An indexable cutting insert has opposing side surfaces and two cutting portions, one of which is operative when the cutting insert is retained in an insert holder. An insert bore opens out to both side surfaces. Two major abutment surfaces located on opposite sides of the insert bore extend from one of the side surfaces, one major abutment surface being closer to the operative cutting portion than the other. Two minor abutment surfaces extend from the same side surface. In a plan view of the side surface, the minor abutment surfaces are transverse to the two major abutment surfaces and also to base abutment surfaces associated with the major and minor abutment surfaces. | 05-12-2011 |
