Including Tool Holding Clamp And Clamp Actuator Patents (Class 407/107)
  • Patent number: 10994342
    Abstract: A cutting insert is provided, which can be prevented from being lifted from a tool body. A cutting insert includes two end surfaces opposed to each other, a peripheral side surface extending between the two end surfaces, a cutting edge provided at an intersecting edge between at least one of the two end surfaces and the peripheral side surface, and a fixing hole provided in an end surface direction from the first end surface to the second end surface. The peripheral side surface is provided with raised parts changing in height in the end surface direction.
    Type: Grant
    Filed: July 28, 2018
    Date of Patent: May 4, 2021
    Assignee: TUNGALOY CORPORATION
    Inventors: Takehiro Ida, Ryuichi Saji
  • Patent number: 10796445
    Abstract: An electronic device: displays, on a display of the electronic device, a reticle element in a first appearance state overlaid on a media capture preview of objects in a field of view of an image sensor of the electronic device, where the media capture preview changes as the objects in the field of view of the image sensor change; detects a plane in the media capture preview; and, in response to detecting the plane, displays, on the display, the reticle element in a second appearance state overlaid on the media capture preview, where the reticle element corresponds to an indication of a portion of the extent of the plane while displayed in the second appearance state.
    Type: Grant
    Filed: May 12, 2018
    Date of Patent: October 6, 2020
    Assignee: APPLE INC.
    Inventors: Giancarlo Yerkes, Aitor Aldoma Buchaca, Na Wong, Oliver Montague Dunkley
  • Patent number: 10751803
    Abstract: In an insert clamping mechanism of an indexable grooving tool of the present invention, a shaft portion of a clamping tool has a major axis and a minor axis orthogonal to each other on a center axis thereof in a cross-sectional view perpendicular to the center axis. At least one end portion of the both end portions positioned on the major axis in an outer circumference of the shaft portion is formed into a recessed shape or a linear shape and is disposed not to come into contact with an upper wall and a lower wall of an opening-closing operation slit. Support portions are respectively formed in parts adjacent to the end portions on both sides around the center axis along the shaft portion.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: August 25, 2020
    Assignee: Mitsubishi Materials Corporation
    Inventors: Takuma Kiso, Shoichiro Watanabe, Hiroyuki Norigoe
  • Patent number: 10646926
    Abstract: A cutting insert for a tool for machining a workpiece, comprising a first cutting edge and a first cutting insert bore, wherein the cutting insert has an elongate shape and extends along a cutting insert longitudinal direction, wherein the first cutting insert bore extends along a first bore axis, which runs substantially orthogonally to the cutting insert longitudinal direction, wherein the cutting insert has a laterally protruding elevation, which is arranged on a side of the cutting insert that is oriented transversely to the first bore axis, and wherein on the elevation are arranged a first lateral holder contact surface, an axial holder contact surface and a first horizontal holder contact surface for the bearing contact of the cutting insert against a tool holder, wherein the first lateral holder contact surface runs substantially orthogonally to the first bore axis, and wherein the axial holder contact surface and the first horizontal holder contact surface run substantially orthogonally to the first l
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: May 12, 2020
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventor: Tobias Kemmler
  • Patent number: 10465699
    Abstract: A compressor blade locking device can include: a first support including a first locking groove; a second support including a second locking groove; an upper plate disposed in the first locking groove and the second locking groove; and a plurality of bolts passing through the upper plate and coupled with the first support and the second support. The compressor blade locking device can further include a center support interposed between the first support and the second support.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: November 5, 2019
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventors: Matthew Montgomery, Iurii Goroshchak, Joohwan Kwak, Andrii Ievdoshyn
  • Patent number: 10335872
    Abstract: A cutting insert has first and second end surfaces, a peripheral side surface, a reference central axis A perpendicular to and passing through the two surfaces, and a cutting edge having at least one circular-arc-shaped cutting edge. A contact surface portion is formed in the second end surface. The arc-shaped cutting edge is part of virtual circle having a center E which is spaced apart from the central axis A. A longitudinal plane B includes the central axis A and the center E; a median plane C perpendicular to the central axis A passes midway between the two end surfaces; and a virtual plane D perpendicular to both the longitudinal plane B and the median plane C, intersects the circular-arc-shaped cutting edge and traverses the contact surface portion. In a cross-section along the virtual plane D, the contact surface portion is inclined relative to the median plane C.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: July 2, 2019
    Assignee: TUNGALOY CORPORATION
    Inventors: Yuki Oikawa, Ryuichi Saji
  • Patent number: 9656323
    Abstract: A cutting element includes a cutting portion and a cooling portion. The cutting portion has a rake surface, a relief surface and a cutting edge defined at the intersection between the rake surface and the relief surface. The cooling portion has an operative surface and a cooling nozzle integrally formed therewith. The nozzle is spaced from the cutting edge and having a cooling aperture directed at the cutting edge at an acute angle with respect to the rake surface. The operative surface is one of the rake surface and a surface of the cutting element other than the rake surface, disposed at a location more remote from the cutting edge than the rake surface, so that the rake surface is disposed between the cutting edge and the cooling aperture.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: May 23, 2017
    Assignee: NO SCREW LTD.
    Inventor: Gershon Harif
  • Patent number: 9649694
    Abstract: A toolholder and method for use with a cutting insert having a clamping opening, comprising a toolholder body and a clamp pivotably mounted to and contacting the toolholder body and pivotable between a first position in which a protrusion of the clamp is disposed in a position in which it is arranged to be received in the clamping opening in the cutting insert to secure the cutting insert to the toolholder body and a second position in which the protrusion is spaced, relative to the toolholder, upwardly from the first position so that the cutting insert is not secured to the toolholder body by the protrusion. A resilient member is arranged relative to the clamp to urge the clamp to the first position and to resist pivoting of the clamp to the second position. An opening in the clamp may receive a portion of a separate lever.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: May 16, 2017
    Assignee: SECO TOLLS AB
    Inventor: Roger Eriksson
  • Patent number: 9623493
    Abstract: A double-sided ball end mill includes a body having a generally hemispherical forward end portion and a rearward end portion. The forward end portion includes insert-receiving pockets and chip pockets. A cutting insert can be mounted within each insert-receiving pocket. The cutting insert includes a first substantially planar surface, a second substantially planar surface, a first curvilinear side surface, a second curvilinear side surface, a first pair of cutting edges formed at an intersection between the first substantially planar surface and the first and second curvilinear side surfaces, and a second pair of cutting edges formed at an intersection between the second substantially planar surface and the first and second curvilinear side surfaces. The first and second planar surfaces are substantially parallel to each other, and the cutting insert is mirror symmetric about all three axes.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: April 18, 2017
    Assignee: KENNAMETAL INC.
    Inventors: Michael G. Morrison, Srikanth Bontha
  • Patent number: 9427807
    Abstract: A clamp for holding a cutting insert on a tool holder and having a coolant passage therethrough to receive a coolant from a coolant supply conduit external to the tool holder and into an inlet of the clamp, and to impinge a coolant stream emerging from an outlet of the coolant passage onto a cutting interface between the cutting insert and a work piece. The flow of coolant through the coolant passage extends the life of the cutting insert by reducing heat generation at the cutting interface between the cutting edge of the cutting insert and the work piece. The coolant passage can be formed using conventional drilling tools. The clamp enables the extension of the service life of a cutting insert and can be used with conventional tool holders.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: August 30, 2016
    Inventor: Dennis P. Flolo
  • Patent number: 9366146
    Abstract: A closure bucket for a turbo-machine. In one embodiment, the turbine closure bucket includes a blade section, and a base section positioned adjacent the blade section. The base section of the turbine closure bucket can engage a dovetail slot of a rotor. The base section includes a body having a first end and a second end. The base section also includes an aperture extending through the body of the base section. Additionally, the base section includes an annularly open threaded opening extending along an outer surface of the body. The annularly open threaded opening of the base section is configured to engage a threaded fastener for securing the turbine closure bucket within the dovetail slot of the rotor.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: June 14, 2016
    Assignee: General Electric Company
    Inventors: Francisco Adelmo Arita, Enrique Diaz, Martin Villegas
  • Patent number: 9120155
    Abstract: 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.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: September 1, 2015
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9120239
    Abstract: A cutting insert has upper and lower faces, and a peripheral surface with two longitudinal insert side surfaces. Two similar through-going transverse insert key recesses open out to the insert side surfaces and to the insert lower surface. Each insert key recess has a similar profile when viewed in transverse cross sections of the cutting insert. Each insert key recess is limited by an insert recess top surface and insert recess side surfaces. The insert recess side surfaces are symmetrical about a plane. A holder blade for holding the cutting insert has upper and lower jaws for clamping the cutting insert therein, and a holder recess. The lower jaw has a leading surface and lower jaw recess. A cutting-tool key has two key members, fitted into the holder recess and an insert key recess, to force the cutting insert to mount it to or extract it from the cutting tool.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: September 1, 2015
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9033622
    Abstract: A cutting tool used for grooving and turning operations where a cutting insert is resiliently securable in a holder blade. The cutting insert includes an insert central lower surface located between, and recessed with respect to, two insert lower component surfaces, each having an insert lower abutment surface. At least one of the two insert lower component surfaces includes an insert inner curved ramp extending from its insert lower abutment surface to the adjacent insert lower intermediate surface and at least the other of the two insert lower component surfaces includes an insert outer curved ramp extending from its insert lower abutment surface to an adjacent end surface.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: May 19, 2015
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9016985
    Abstract: The invention relates to an indexable insert (1) for fitting in supporting tools (5) for the machining of workpieces, with an upper side (2) and an underside (3), on which clamping recesses are arranged, and with a circumferential geometry (4) joining the upper side (2) and the underside (3), wherein cutting corners and cutting edges (6) are arranged at the transition from the upper side (2) and the underside (3) to the circumferential geometry (4).
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 28, 2015
    Assignee: CeramTec GmbH
    Inventors: Raouf Ben Amor, Marianne Krause, Andreas Herb, Heiko Libhafsky, Stephan Keintzel
  • Patent number: 8992135
    Abstract: A cutting tool includes a cutting insert and a tool holder. The tool holder includes: a base for supporting a bottom surface of the cutting insert; a clamping arm for pressing a top surface of the cutting insert; an insert receiving space formed between the bottom surface of the clamping arm and the base; and a supporting surface which defines an end of the insert receiving space and supports an end of the cutting insert. The cutting insert includes: a first pressing region on the front portion of the top surface which is oriented in a vertically upward direction; and a second pressing region on the rear portion of the top surface which is oriented at an angle in the front direction.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: March 31, 2015
    Assignee: TaeguTec, Ltd.
    Inventors: Chang Hee Choi, Hong Sik Park
  • Patent number: 8985913
    Abstract: A cutting tool holder has a holder body and upper and base jaws. An insert receiving pocket is defined between the upper and base jaw, for receiving a cutting insert therein. A resilience recess allows the upper jaw to deflect toward the base jaw. An upper jaw coolant channel has an upper jaw inlet, opening out to the resilience recess, and an upper jaw outlet, opening out to a front end of the upper jaw. A holder body coolant channel has a holder body outlet, opening out to the resilience recess, spaced apart from the upper jaw inlet. A compressible tool coolant plug, made of compressible material, is inserted into the resilience recess. The plug has a plug coolant channel opening out toward the upper jaw inlet and the holder body outlet, forming a fluid path from the holder body coolant channel to the upper jaw coolant channel.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: March 24, 2015
    Assignee: Iscar, Ltd.
    Inventors: Vitaly Oren, Roman Shpilkin
  • Patent number: 8973686
    Abstract: A cutter insert assembly for a drill bit for boring into the earth, comprising a super-hard structure clampable to a support body by means of a clamp mechanism; the clamp mechanism comprising opposed or opposable compression members connected or connectable by a tension member capable of sustaining a clamping force between the compression members when the cutter insert assembly is in a clamped condition, in which condition the compression members exert opposing compressive forces on the super-hard structure and the support body, operable to clamp the super-hard structure to the support body, and in which condition the cutter insert assembly is self-supporting and capable of being mounted onto a drill bit body.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: March 10, 2015
    Assignees: Element Six Limited, Element Six Abrasives S.A.
    Inventors: Gerald Dolan, John Hewitt Liversage, Habib Saridikmen, Richard Bodkin, Mehmet Serdar Ozbayraktar
  • Patent number: 8943933
    Abstract: A cutting insert (130) is formed to be rotationally symmetric with respect to an axis line (C3) of a height direction and to be planarly symmetric with respect to a virtual plane of the insert (VS1), an axis line (C2) of a traverse direction is gradually inclined toward the front of a rotational direction around which a workpiece (W) rotates moving toward a first traverse direction (C2A), an axis line (C1) of a longitudinal direction extends toward a lower surface side of an insert body (131) so as to approach a virtual plane of the tool moving toward a first longitudinal direction (C1A), and one corner portion (143C) in the other cutting edge (132B) is disposed further toward a first traverse direction (C2A) than one corner portion (143A) in one cutting edge (132A).
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: February 3, 2015
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hidehiko Nagaya, Norio Aso, Yasuharu Imai, Shoichiro Watanabe, Kenji Ishizawa
  • Publication number: 20150030400
    Abstract: A holder for grooving work includes a shank portion, and a head portion located on an end portion thereof. The head portion includes an insert attaching space, an upper and lower respectively located above and below the insert attaching space, a slit extending backward from the insert attaching space, an upper and a lower jaw connecting portions divided by the slit, an upper clamp surface on the upper jaw and a lower clamp surface on the lower jaw opposed to the insert attaching space. A column-shaped groove is connected to the deepest end of the slit. The column-shaped groove is formed to reduce the thickness of the upper jaw connecting portion, and extends from the lateral face on the side of the insert attaching space halfway along the deepest end of the slit toward the opposite lateral face. Upon attaching the insert to the holder the cutting tool is obtained.
    Type: Application
    Filed: January 30, 2013
    Publication date: January 29, 2015
    Inventor: Yuich Tsuda
  • Publication number: 20140321926
    Abstract: A tool holder has a main body with a holder head extending away from a holder shank, the holder head having an insert receiving pocket at a forward end thereof, with a pocket support surface. A clamping member is retained in the holder head, the clamping member comprising a clamping shaft longitudinally extending along a shaft axis. A locking member operatively engages an abutment surface of the clamping shaft. The shaft axis does not intersect the pocket support surface, and the clamping shaft has a non-circular shape in a cross-section taken perpendicular to the shaft axis. The tool holder is configured to direct a clamping force towards, and clamp a cutting insert against, the pocket support surface.
    Type: Application
    Filed: April 24, 2013
    Publication date: October 30, 2014
    Applicant: Iscar, Ltd.
    Inventor: Meir Sadikov
  • Publication number: 20140294520
    Abstract: A cutting tool system comprising a carrier tool, a cutting plate having a clamping recess and a clamping element with an associated clamping bolt, wherein on the underside of the clamping element, which underside faces the cutting plate, an engagement element is arranged that is in clamping contact with the clamping recess in the engaged state and thereby anchors the cutting plate, and the clamping element is guided via a chamfer in such a manner that when tightening the clamping bolt, the clamping element is pulled in the clamping direction.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 2, 2014
    Applicant: CERAMTEC GMBH
    Inventors: Uwe Henzler, Uwe Stemmer
  • Publication number: 20140234040
    Abstract: A cutting insert has upper and lower faces, and a peripheral surface with two longitudinal insert side surfaces. Two similar through-going transverse insert key recesses open out to the insert side surfaces and to the insert lower surface. Each insert key recess has a similar profile when viewed in transverse cross sections of the cutting insert. Each insert key recess is limited by an insert recess top surface and insert recess side surfaces. The insert recess side surfaces are symmetrical about a plane. A holder blade for holding the cutting insert has upper and lower jaws for clamping the cutting insert therein, and a holder recess. The lower jaw has a leading surface and lower jaw recess. A cutting-tool key has two key members, fitted into the holder recess and an insert key recess, to force the cutting insert to mount it to or extract it from the cutting tool.
    Type: Application
    Filed: February 21, 2013
    Publication date: August 21, 2014
    Applicant: Iscar, Ltd.
    Inventor: Gil Hecht
  • Publication number: 20140234041
    Abstract: The invention relates to a cutting plate for a chip-removing cutting tool, comprising a cutting plate top face and a cutting plate bottom face, one or more lateral faces, cutting edges at the transition between the cutting plate top face and the one or more lateral face, and a circular chip recess in the cutting plate top face that has an outside diameter d1. In order to reduce the production costs, according to the invention the following applies to the outside diameter d1 of the chip recess: 2 mm<d1<=6 mm, preferably 2 mm<d1<5 mm.
    Type: Application
    Filed: October 5, 2012
    Publication date: August 21, 2014
    Applicant: CERAMTEC GMBH
    Inventor: Raouf Ben Amor
  • Publication number: 20140205391
    Abstract: A metal cutting tool has a supporting tool, which has a recess for accommodating a cutting plate. The cutting plate is provided with a damping trough, which is held in the supporting tool by a clamping claw. The clamping claw is fixed against the supporting tool by a clamping screw. A pressure piece is placed on the clamping claw and its underside facing the cutting plate is provided with a cam, which is in contact with the clamping trough and the clamping claw pulls the pressure piece toward the clamping screw.
    Type: Application
    Filed: December 4, 2013
    Publication date: July 24, 2014
    Applicant: CeramTec GmbH
    Inventors: Otto EDER, Wolfgang ZITZLAFF
  • Publication number: 20140199129
    Abstract: A cutting tool (10) includes a toolholder (12) and a cutting insert (14) removably securable in the toolholder. The cutting insert (14) includes a lower clamping surface (18) with a V-shaped clamping surface (32, 34) on each side of a central portion (28). The toolholder includes a lower clamping surface (56) with an inverted V-shaped clamping surface (62, 64) on each side of the bottom surface (60) formed by a primary clamping surface (62a, 64a) and a secondary clamping surface (62b, 64b). The secondary clamping surfaces (32b, 34b) of the cutting insert (14) contacts the secondary clamping surfaces (62b, 64b) of the toolholder (12) when the cutting tool (10) is brought into a clamped position due to interference between the toolholder (12) and the cutting insert (14), thereby providing a minimum of four clamping surfaces when in the clamped position.
    Type: Application
    Filed: January 16, 2013
    Publication date: July 17, 2014
    Applicant: KENNAMETAL INC.
    Inventors: Igor Kaufmann, Scott Etling
  • Publication number: 20140161548
    Abstract: 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.
    Type: Application
    Filed: August 1, 2013
    Publication date: June 12, 2014
    Applicant: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8747032
    Abstract: The present invention relates to a tool for machining a workpiece, comprising a tool body, a cutting tool and fastening means for fastening the cutting tool in an accommodating recess of the tool body, wherein the cutting tool has a cutting edge and a cutting tool through-bore, and wherein the tool body has a tool body through-bore opening into the accommodating recess.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: June 10, 2014
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventors: Matthias Oettle, Uli Ruoff
  • Patent number: 8740511
    Abstract: A tool holder has a main body having a holder head extending away from a holder shank in a forward direction, a clamping member non-threadingly retained in the holder head, and a locking member operatively engaging a single abutment surface of the clamping member. The holder head has an insert receiving pocket at a forward end thereof with a pocket support surface substantially facing in an upward direction, and the clamping member is located entirely rearward of the pocket support surface with the abutment surface facing generally upwardly. The tool holder is configured to direct a clamping force towards, and clamp a cutting insert against, the pocket support surface.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: June 3, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8727674
    Abstract: A tool holder includes a tool holder body with an insert-receiving pocket and a clamp for clamping a cutting insert. The clamp includes a pair of downwardly extending nubs that engage a pair of notches in the cutting insert when the clamp is brought into pressing engagement with the insert, thereby securely clamping the cutting insert in the insert-receiving pocket of the tool holder.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: May 20, 2014
    Assignee: Kennametal Inc.
    Inventors: John Julius Baca, Jr., Ashwin Dwarakaesh Murali, Kent Peter Mizgalski
  • Patent number: 8714886
    Abstract: A double-sided indexable threading cutting insert includes two opposite end surfaces and a common periphery extending therebetween. The periphery includes exactly five identical peripheral sections and exactly five identical peripheral segments. Each peripheral segment extends between two adjacent peripheral sections and each peripheral section includes two adjacent abutment sections located between two rake faces. In a plan view of each end surface, each abutment section lies on a portion of an imaginary five-pointed star which includes five outer vertices alternating with five inner vertices. The cutting insert includes five cutting portions, each cutting portion is associated with a respective outer vertex, each cutting portion extends outwardly, and each cutting portion includes two opposite cutting tips.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: May 6, 2014
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Danny Chen
  • Patent number: 8696261
    Abstract: A cutting tool assembly includes a tool body and a clamping mechanism for releasably clamping a cutting insert to the tool body. The clamping mechanism includes a rotatable cam member, a coupling member, a biasing spring and a clamping element. The rotation of the rotatable cam member in opposite senses results in the adjustment of the position of the coupling member in opposite directions, which results in a displacement of the clamping element, and therefore changing the locking position to a releasing position and vice versa.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: April 15, 2014
    Assignee: Iscar, Ltd.
    Inventor: Dov Yoffe
  • Patent number: 8690495
    Abstract: A cutting tool for machining large workpieces having relatively a large cutting amount and a cutting insert configured to be used with the cutting tool. The cutting tool includes a cutting insert and a wedge for clamping the cutting insert. The cutting insert has a polygonal top surface, which comprises a recessed portion having a plurality of inclined abutment surfaces which are inclined toward the center of the top surface. The outline of said recessed portion is twisted at a predetermined angle with respect to the outline of the top surface. The wedge includes a projecting portion that contacts the inclined abutment surface and pushes the cutting insert so that two side surfaces of the cutting insert can be supported by a radial inner side surface and a lateral supporting surface of an insert seat.
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: April 8, 2014
    Assignee: TaeguTec, Ltd.
    Inventor: Chang Hee Choi
  • Publication number: 20140056659
    Abstract: A chamfering insert has an elongated shape with a longitudinal insert axis and includes two opposite end portions and a cylindrically shaped insert peripheral surface which extends therebetween. The chamfering insert has a cutting edge, first and second opposite insert abutment surfaces, each of which extends perpendicularly to the insert axis, and an insert anti-rotation surface which extends parallel to the insert axis. The insert anti-rotation and abutment surfaces are located on one side of an imaginary plane, and the cutting edge is located, separately therefrom, on an opposite side of the imaginary plane.
    Type: Application
    Filed: August 21, 2012
    Publication date: February 27, 2014
    Applicant: Iscar, Ltd.
    Inventor: Shimon Athad
  • Publication number: 20140044496
    Abstract: A cutting insert and a clamping element for clamping the cutting insert in a pocket of a cutting tool. The cutting insert includes a polygonal body, a top surface, a bottom surface, a plurality of side surfaces, a rake surface extending inwardly from a cutting edge, and a plurality of seating surfaces adjacent the rake surface that are separated by a groove. The clamping element includes a rail member protruding from a bottom surface and extending at least partially from a side surface. The groove of the cutting insert is capable of receiving the rail member of the clamping element for clamping the cutting insert in the pocket of the cutting tool.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 13, 2014
    Applicant: KENNAMETAL INC.
    Inventors: Sharath Shankaregowda, Shreelakshmi Krishnegowda, K. Visweswara Rao, Prem Kumar
  • Patent number: 8647029
    Abstract: A cutting tool used for grooving and turning has a cutting insert removably secured in a holder blade. The cutting insert includes an insert passage having an insert passage axis, and the holder blade includes a holder passage having holder passage axis. When the cutting insert is resiliently clamped in the holding portion and located in a rearmost position, a passage plane containing the holder and insert passage axes forms a first angle with a main plane, perpendicular to the insert longitudinal axis and containing the insert passage center point, where the first angle is less than or equal to 60°. The cutting insert can be extracted from the cutting tool by positioning first and second engagement portions of an extraction key simultaneously in the holder and insert passages, respectively, and rotating the extraction key.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: February 11, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Publication number: 20140030035
    Abstract: A cutting insert has an upper abutment portion at an upper surface thereof, and two bottom abutment portions and a stopper portion, at a bottom surface thereof. The two bottom abutment portions define bottom planes, parallel and spaced apart from one another. The upper abutment surface defines an upper plane, forming a first angle with the bottom planes. The cutting insert has a relief surface at a front surface thereof, forming a cutting edge with a rake surface formed at the upper surface. The stopper portion defines a stopper plane, which forms a second angle with a relief plane defined by the relief surface. A reference plane perpendicular to the upper plane, passing through the upper abutment portion, intersects the first and second bottom planes at first and second intersection lines, which are spaced apart from the first and second bottom abutment portions.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 30, 2014
    Applicant: Iscar Ltd.
    Inventor: GIL HECHT
  • Patent number: 8613575
    Abstract: The present invention relates to an indexable cutting insert which is provided with at least two bearing surfaces for securing to a holder, said at least two bearing surfaces being each subdivided into individual subsurfaces, wherein the at least two bearing surfaces, with respect to a center plane of the cutting insert, forms at least three edges in one half of said cutting insert, said edges bounding the subsurfaces for the formation of crowning, approximating to convexity, of the at least two bearing surfaces.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: December 24, 2013
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventors: Hans Schaefer, Peter Langer
  • Patent number: 8573902
    Abstract: A grooving tool for cutting grooves in workpieces and a grooving tool tool holder for permitting replacement of inserts and permitting inserts to be replaced without moving the tool holder with respect to the grooving tool in which the tool holder is installed.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: November 5, 2013
    Assignee: Keenametal Inc.
    Inventor: Igor Kaufmann
  • Patent number: 8573901
    Abstract: A cutting insert rotated about its axis may be utilized during a metalworking operation and applied against the rotating workpiece to enhance tool performance. The cutting insert is secured within a toolholder having features to secure the insert but at the same time make for efficient removal of the insert from the toolholder.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: November 5, 2013
    Assignee: Kennametal Inc.
    Inventors: Ruy Frota de Souza Filho, Adam South, Gregory A. Hyatt, Paul Brown, Linn Andras, Ted R. Massa, Nitin Chaphalkar
  • Patent number: 8556548
    Abstract: A clamp fastens a cutting insert to a tool holder. The clamp assembly includes a body portion provided with a screw hole, a forward protrusion formed at the front portion of the body and extending downward, a rear protrusion formed at the rear end portion of the body and extending downward, and a bridge connecting the forward protrusion and the central portion of the body. The clamp assembly also includes a pressing plate having upper and lower surfaces, a front nose portion, a rear end portion, and is provided with a keyhole shaped groove having an enlarged inner cavity open toward the rear end by a narrow neck extending thicknesswise. The forward protrusion is inserted into the enlarged inner cavity and the bridge is inserted into the narrow neck of the keyhole groove so that the pressing plate is coupled to the clamp.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: October 15, 2013
    Assignee: TaeguTec, Ltd.
    Inventors: Hong Sik Park, Sung Hyup Park, Chang Hee Choi
  • Patent number: 8556549
    Abstract: In a head member (30) for this cutting tool with detachable insert (70), a slit (38) is provided so as to further extend towards a rear end side from a rear end for an insert attachment seat formed by a pressing surface of an upper jaw portion of a head member body (31) and a pedestal surface of a lower jaw portion (33). Also, a clamp screw engaged with the upper jaw portion is screwed while inclining in a direction separated as it moves towards the lower jaw portion (33), with respect to an imaginary plane (P) which extends along an extension direction of the slit (38) and in a direction in which the pressing surface and the pedestal surface face each other, whereby the upper jaw portion is enabled to elastically deform by using as a fulcrum a connecting portion 39 between a rear wall surface (38B) of the slit (38), and a rear end surface (31F) of the head member body (31).
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: October 15, 2013
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hidehiko Nagaya, Norio Aso, Yasuharu Imai
  • Patent number: 8545135
    Abstract: A test kit for unevenly worn sheave grooves, a tool for regrooving sheave grooves that are found to be unevenly worn, and a method for testing for and maintaining the sheave grooves utilizing the test kit and tool. The test kit includes magnetic standards which adhere to a sheave beneath the portion of the sheave touched by the ropes, facilitating testing without having to unrope the sheave. Unevenly worn sheave grooves are visually ascertained by holding a straightedge adjacent to the magnetic standards. The regrooving tool includes a shank that can be received by a stand set up next to the sheave, a body attached to the shank, and an interchangeable cutting insert received by the body that is inserted in the sheave groove. When the sheave is rotated, the sheave groove is ground by the cutting insert, with each groove being ground sequentially until all grooves are again uniform.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: October 1, 2013
    Assignee: Vertical Motion Innovations, LLC
    Inventors: Robert D. Wilson, Jr., Christian E. Thomsen, James Watson, Keegan Carriveau, Max Wilson
  • Publication number: 20130251465
    Abstract: In a cutting tool, at least one of an upper contact part of an upper surface of a cutting insert and an upper jaw of a holder and a lower contact part of a lower surface of the cutting insert and a lower jaw of the holder includes a first concave-convex surface and a second concave-convex surface. A distance d1 between tops of first convex parts adjacent to each other among a plurality of first convex parts of the first concave-convex surface is smaller than a distance d2 between bottoms of second concave parts adjacent to each other among a plurality of second concave parts of the second concave-convex surface in a sectional view perpendicular to the longitudinal direction of the holder.
    Type: Application
    Filed: November 29, 2011
    Publication date: September 26, 2013
    Applicant: Kyocera Corporation
    Inventor: Yoshihiro Inoue
  • Publication number: 20130236256
    Abstract: A groove insert to be received in a tool holder has, along its top and bottom side and on its rear side, a holding structure which is formed by holding faces which taper toward one another and by way of which the groove insert is fixed in the tool holder in a positive locking manner. The tool holder has corresponding counter faces. The groove insert and the tool holder form a groove cutting tool.
    Type: Application
    Filed: February 14, 2013
    Publication date: September 12, 2013
    Applicant: KENNAMETAL INC.
    Inventors: Igor Kaufmann, Anwar Sadat Mohideen Abdul, Franz Havrda
  • Patent number: 8529162
    Abstract: A cutting tool includes a tool body and an ambidextrous clamp for removably securing a cutting insert to the tool body. The clamp has at least one internal fluid duct passing through a space between two clamp screw throughbores located mirror symmetrically with respect to a plane of symmetry and extending from a coolant fluid inlet port to at least one discharge orifice. The clamp is secured to the tool body by a single screw located in one of the clamp screw throughbores and threadingly engaged with a single threaded bore of the tool body. The same clamp is used in both left-handed and right-handed tools, and the jet of the coolant fluid is ejected from the discharge orifice of the clamp onto the same region of the cutting insert in both cases.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: September 10, 2013
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8529165
    Abstract: A multi-grooving tool holder for holding cutting members seated in a side-by-side formation in a clamping portion of the holder. The clamping portion includes an upper clamp and a lower clamp and an elastic member is located in one of the upper and lower clamps. When cutting members are assembled in the clamping portion, the elastic member engages the cutting members and aligns each cutting member independently, by applying a force, and consequently a moment on the cutting members.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: September 10, 2013
    Assignee: Iscar, Ltd.
    Inventor: Sergey Chistyakov
  • Publication number: 20130216320
    Abstract: A tool holder includes a tool holder body with an insert-receiving pocket and a clamp for clamping a cutting insert. The clamp includes a pair of downwardly extending nubs that engage a pair of notches in the cutting insert when the clamp is brought into pressing engagement with the insert, thereby securely clamping the cutting insert in the insert-receiving pocket of the tool holder.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 22, 2013
    Applicant: Kennametal Inc.
    Inventors: John Julius Baca, JR., Ashwin Dwarakaesh Murali, Kent Peter Mizgalski
  • Publication number: 20130202371
    Abstract: An indexable double-negative cutting insert includes an index axis A, two opposing end surfaces, a peripheral side surface which extends therebetween, and opposing side cutting edges formed between the end surfaces and the peripheral side surface. A median plane P is located midway between the end surfaces, passes through the peripheral side surface and is perpendicular to the index axis. The peripheral side surface includes at least one protrusion which extends in an outward direction relative to the index axis, in a plan view of either end surface. The protrusion includes two side abutment surfaces which converge in the outward direction towards the median plane P. In each cross-section perpendicular to the median plane, which cross-section passes through both opposing side cutting edges and also the at least one protrusion, no portion of the peripheral surface is inward of an imaginary line connecting the opposing side cutting edges.
    Type: Application
    Filed: February 7, 2012
    Publication date: August 8, 2013
    Applicant: Iscar Ltd.
    Inventor: Danny Chen
  • Publication number: 20130202372
    Abstract: A tool holder has a body portion and a holding portion, the holding portion having a base jaw and a clamping jaw, with an insert receiving pocket therebetween extending in a forward to rearward direction, and a first slot extending generally rearwardly from the insert receiving pocket. The base jaw has a support surface, and the clamping jaw has upper and lower arms separated by a second slot and extending in the generally forward direction. The lower arm has a forward end and an under surface facing towards the support surface, the under surface having a clamping portion adjacent the forward end. The upper arm has a bore which opens out to the second slot at a location rearward of the clamping portion. The bore can accommodate a force application member which can contact and displace the lower arm towards the base jaw to clamp a cutting insert.
    Type: Application
    Filed: March 14, 2012
    Publication date: August 8, 2013
    Applicant: Iscar, Ltd.
    Inventor: Gil Hecht