With Means Projecting Through Aperture To Force Tool Laterally Against Reaction Surface Patents (Class 407/104)
  • Patent number: 11285548
    Abstract: A single-sided three-way indexable milling insert for feed milling operations, includes a positive basic shape, a rake surface, a peripheral surface including side abutment surfaces, a base bearing surface and a screw hole connecting the rake and base bearing surfaces. The insert has a cutting edge including exactly three main cutting sub-edges and three secondary cutting sub-edges. A material volume VF of the cutting insert and a void volume VS of the insert fulfill the condition VS/VF?0.30.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 29, 2022
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Adi Shapir
  • Patent number: 11260458
    Abstract: An insert may include a main body. The main body may include a first surface, a second surface, a side surface, a first cutting edge and a through hole. The side surface may be located between the first surface and the second surface. The first cutting edge may be located on at least a part of a ridge line where a first side surface of the side surface intersects with a second side surface adjacent to the first side surface. The through hole may open into the first surface. The main body may further include a first concave part located from the first surface to the side surface. The first concave part may be located away from an imaginary straight line connecting the first cutting edge and a center of the through hole in a front view of the first surface.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: March 1, 2022
    Assignee: KYOCERA Corporation
    Inventor: Yuichi Ando
  • Patent number: 11141796
    Abstract: A double-sided cutting insert with orientation-assisting geometry includes identical and opposite first and second main surfaces and a peripheral surface which extends therebetween. The insert further includes a median plane located midway between the first and second main surfaces and opposite first and second clamping recesses opening out respectively to the first and second main surfaces. Projections onto the median plane of at least portions of the first and second clamping recesses are rotationally offset from one another about a central axis.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: October 12, 2021
    Assignee: Iscar, Ltd.
    Inventor: Philip Shaheen
  • Patent number: 11007585
    Abstract: A single-sided three-way indexable milling insert for 90° shoulder milling operations, includes a positive basic shape, a rake surface, a peripheral surface including side abutment surfaces, a base bearing surface and a screw hole connecting the rake and base bearing surfaces. The insert has three main cutting edges which lie along an imaginary equilateral triangle. A material volume VF of the cutting insert and a void volume VS of the insert's screw hole fulfill the condition VS/VF?0.30.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: May 18, 2021
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Assaf Ballas
  • Patent number: 10997834
    Abstract: A method and/or system for assessing the security situation in a building through an evaluation of sensor values provided by activity sensors situated in the building, in particular, in the accommodation region, an estimate of the number of persons actually present in the building, determining the number of persons to be expected in the building by an evaluation of administrative data (HR, Outlook, events, occupancies, etc.). Based upon a comparison of the number of persons to be expected with the number of actual persons, an indicator is determined for assessing the actual security situation in the building or in the accommodation region.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 4, 2021
    Assignee: SIEMENS SCHWEIZ AG
    Inventors: Patrik Domeisen, Hilmar Konrad
  • Patent number: 10898958
    Abstract: A cutting insert may include an upper surface, a side surface, and a cutting edge. The upper surface may include a first breaker portion and a second breaker portion. The first breaker portion may include a first surface inclined downward and a second surface inclined upward. The second breaker portion may be inclined upward as the second breaker portion extends away from the first breaker portion. An inclination angle of the first surface may be constant along the first side portion. A length of the first surface may be greater at a second end portion than at a first end portion. An intersection portion of the first breaker portion and the second breaker portion may be orthogonal to the first side portion, or inclined away from the first corner portion as the intersection portion extends away from the first side portion.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: January 26, 2021
    Assignee: KYOCERA Corporation
    Inventor: Yousuke Fukuhara
  • Patent number: 10682708
    Abstract: The invention relates to a carrier tool (1) comprising a clamping element (2) with a clamping element projection (3) and comprising a cutting insert (4) with a clamping recess (5) on the cutting insert surface (13) for machining workpieces. The clamping recess (5) has an annular indentation (9) with a recess base (7), and the indentation (9) transitions from the recess base (7) into the cutting insert surface (13) via an annular surface (8). The indentation (9) surrounds an elevation (10), the tip (11) of which lies above the recess base (7) and below the cutting insert surface (13). The clamping element projection (3) engages into the clamping recess (5) and thus clamps same on the carrier tool (1).
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: June 16, 2020
    Assignee: CERAMTEC GMBH
    Inventor: Uwe Henzler
  • Patent number: 10661361
    Abstract: Provided is a milling/cutting tool including: a tool main unit that is rotated about an axis; and a plurality of tips that are disposed at one end surface of the tool main unit with spacings therebetween in a circumferential direction about the axis of the tool main unit, wherein the individual tips are disposed so that turning rake surfaces thereof are inclined in the axial directions.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: May 26, 2020
    Assignee: Fanuc Corporation
    Inventor: Daisuke Uenishi
  • Patent number: 10556278
    Abstract: A tool body (12) for a shell end mill (10) is described with at least one helical chip guiding groove (24) arranged at the circumference of the tool body (12) for chip dissipation and at least two receptacles (28) for indexable cutting inserts (26) arranged at the chip guiding groove (24). In this case, the receptacles (28) each include a base surface having a bore for receiving an indexable cutting insert fastening screw (34) and at least one first abutment surface adjacent to the base surface. The transition between the base surface and the first contact surface is a groove. In addition, a cutting tool is described with such a tool body, wherein a two-sided indexable cutting insert (26) is attached in each receptacle (28).
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: February 11, 2020
    Assignee: KENNAMETAL INC.
    Inventors: Alex Fraese, Mark Alan Francis, Werner Bruno Penkert, Michael Kreuzer
  • Patent number: 10500647
    Abstract: A cutting tool holder of the kind in which the fastening screw (securing member) remains engaged with the tool holder seat during mounting/dismounting of the cutting insert. The seat is further formed with a support surface configured for engaging and providing support to the head portion of the securing member at least in the securing position.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: December 10, 2019
    Assignee: NO SCREW LTD.
    Inventor: Gershon Harif
  • Patent number: 10384271
    Abstract: A tool holder (12) for an indexable cutting insert (13) is disclosed, comprising a tool holder base body (15), having a receiving pocket (20) for receiving an indexable cutting insert (13) and a fastening pin (17). The fastening pin (17) can assume a mounting position and a clamping position. In the mounting position, the fastening pin (17) can be positioned in a fastening opening (14) of an indexable cutting insert (13). In the clamping position, an indexable cutting insert (13) can be fixed in the receiving pocket (20) by means of the fastening pin (17). The fastening pin (17) is arranged on a fastening slide (16), displaceably arranged in the tool holder base body (15). Furthermore, a cutting tool (10) is disclosed, having a tool holder (12) and an indexable cutting insert (13).
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: August 20, 2019
    Inventors: Markus Rumpf, Maximilian Toepfl
  • Patent number: 10350686
    Abstract: A cutting insert includes an insert body having a central longitudinal axis. The insert body has a first radial side and a second radial side. A first axial side includes a first relief face, a second relief face, and a first recess having a first bottom surface. The first relief face, the second relief face, and the first bottom surface are arranged such that each point of same is visible from either a first side view towards the first radial side or from a second side view towards the second radial side. The insert body is longer along the longitudinal direction at a central portion towards the central longitudinal axis than at an outer portion towards one of the first or second radial sides. Further a milling tool is disclosed.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: July 16, 2019
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Amil Oprasic, Leif Widin
  • Patent number: 10239134
    Abstract: The present invention relates to a tool body provided with at least one insert seat. The insert seat includes a bottom wall surface and a side wall surface. The side wall surface includes a first side wall surface and a second side wall surface. The first side wall surface includes at least two surface portions. The first surface portion is a curved surface having a recessed shape recessed toward a base end of the tool body, and the second surface portion is a curved surface having a recessed shape recessed toward the base end of the tool body, with a greater curvature radius than that of the first surface portion, or a flat surface. The two surface portions both come into contact with a cutting insert.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: March 26, 2019
    Assignee: TUNGALOY CORPORATION
    Inventors: Ryuichi Saji, Satoru Yoshida, Yuki Oikawa
  • Patent number: 10160047
    Abstract: This cutting insert is provided with a lower surface of polygonal shape including side parts and a pair of corner parts, an upper surface, a lateral surface situated between the lower surface and the upper surface, a pair of corner cutting edges located at the pair of corners, and a main cutting edge located in a side portion. The main cutting edge is upwardly convex in shape, and in side view includes an upwardly convex curving portion, and a pair of linear portions respectively extending toward the pair of corner cutting edges from the curving portion. The top portion of the curving portion is positioned more toward the one of the corner cutting edges which, of the pair of corner cutting edges, is that contiguous to a working surface of a work material during cutting of the work material.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: December 25, 2018
    Assignee: KYOCERA Corporation
    Inventor: Kazuki Yamamichi
  • Patent number: 10105760
    Abstract: A cutting tool assembly includes a shank, a shim, a cutting insert, a clamping lever and a set screw. The shank has an insert pocket with a base wall, a lever receiving portion and a screw hole. The shim is disposed on the base wall of the insert pocket and has a shim bore. The cutting insert is disposed on the upper surface of the shim and has an insert bore. The clamping lever is received in the lever receiving portion and clamps the cutting insert to the insert pocket. The clamping lever has first and second extension portions. The set screw is fastened to the screw hole and has a screw head, a threaded portion and an engaging groove. The engaging groove of the set screw engages the second extension portion. The shim includes an avoiding portion for avoiding an interference with the screw head.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: October 23, 2018
    Assignee: TaeguTec Ltd.
    Inventor: Jang Hyuk Joo
  • Patent number: 10101725
    Abstract: A workpiece having at least one physical feature is placed into a workstation fixture having at least one adjustable locator. Measurement data reflecting the position of the at least one physical feature of the workpiece and measurement data reflecting the position of the at least one adjustable locator are obtained. A processor ingests and utilizes the collection of assembly data and the measurement data to define and store in memory at least one ordered pair correlating the physical feature and the adjustable locator. The processor defines a test vector that connects the position of the at least one physical feature and the position of the at least one adjustable locator. The processor to computationally discovers a best fit for adjusting the position of the adjustable locator to register with the physical feature by applying to the test vector a computational optimization process that seeks to minimize the length of the test vector to thereby generate a digital shim vector.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: October 16, 2018
    Assignee: ProcessChamp, LLC
    Inventor: George K. Ghanem
  • Patent number: 10022802
    Abstract: The invention relates to an interchangeable cutting insert (10) having a shank (12), which transitions into a cutting head (14), which has a chipping surface (32), which, when viewed from above, is a segment of a circle with a height greater than the radius of the chipping surface (32), wherein the chord of the segment of a circle constitutes the transition to the shank (12), wherein a cutting edge (30) is formed on the outer edge of the chipping surface and multiple chip-breaking structures (36, 38) are provided on the chipping surface (32), the chip-breaking structures having depressions (36) in the chipping surface (32), between which projections (38) are arranged, which protrude beyond the chipping surface (32).
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: July 17, 2018
    Assignee: KENNAMETAL INC.
    Inventors: Igor Kaufmann, Franz Havrda
  • Patent number: 9956619
    Abstract: A cutting tool includes a cutting insert that is held in a holder in a detachable manner. The cutting insert has a substantially regular quadrangular shape in plan view and includes four round corners. The cutting insert is formed of CBN sinter as a whole. The cutting insert includes two principal surfaces that are upper and lower surfaces opposite to each other, and four side surfaces that are arranged so as to connect the principal surfaces to each other. A boundary portion (ridge line portion) between each of the principal surfaces and each of the side surfaces forms a cutting edge. In a central portion of each of the side surfaces of the cutting insert, a groove for absorbing a crack, having a substantially V-shape in cross section, is formed all around the cutting insert so as to be recessed with respect to the side surfaces.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: May 1, 2018
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Katsumi Okamura, Yosuke Korogi, Naoki Watanobe, Nozomi Tsukihara, Hiroki Yonekura
  • Patent number: 9889505
    Abstract: A cutting insert mounting system adapted for a cutting tool in which, by using a tightening screw, a cutting insert is detachably mounted on an insert mounting seat. A central axis of a screw hole of the insert mounting seat is inclined with respect to a normal direction of a bottom wall surface of the insert mounting seat. When the cutting insert is placed on the insert mounting seat, on a virtual plane defined to expand the bottom wall surface, a central axis of the screw hole is shifted from the central axis of a through hole of the cutting insert to the side of one of two side wall surfaces of the insert mounting seat. On the virtual plane, an axis shift direction of the central axis of the screw hole and an inclination direction of the central axis of the screw hole are different.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: February 13, 2018
    Assignee: TUNGALOY CORPORATION
    Inventor: Takahiro Aso
  • Patent number: 9868168
    Abstract: A bevel gear manufacturing face cutter head (2) for face hobbing and face milling wherein the face cutter head includes a positive blade seating and stick-type rectangular or square cross-section cutting blades (6) are clamped tight to the positive seating surfaces (14, 18). The cutting blades are adjustable radially by axial movement by a non-self-locking system.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: January 16, 2018
    Assignee: THE GLEASON WORKS
    Inventor: Hermann J. Stadtfeld
  • Patent number: 9770762
    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: Grant
    Filed: October 5, 2012
    Date of Patent: September 26, 2017
    Inventor: Raouf Ben Amor
  • Patent number: 9744598
    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 clamping 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: Grant
    Filed: March 22, 2012
    Date of Patent: August 29, 2017
    Assignee: CeramTec GmbH
    Inventors: Otto Eder, Wolfgang Zitzlaff
  • Patent number: 9662722
    Abstract: The disclosure relates to a cutting insert for a tool for machining a workpiece, comprising: two identical mutually opposite base surfaces, wherein at least a part of each base surface is orthogonal to a z-axis of the cutting insert, two identical mutually opposite main side surfaces which extend between the two base surfaces, wherein at least a part of each main side surface is oriented orthogonally to an x-axis of the cutting insert, and two identical mutually opposite secondary side surfaces which extend between the two base surfaces, wherein at least a part of each secondary side surface is oriented orthogonally to a y-axis of the cutting insert, wherein the x-, y- and z-axes are main axes of the cutting insert that are oriented orthogonally to one another, wherein between each one of the base surfaces and each one of the main side surfaces a main cutting edge is arranged, and wherein each main side surface has two diagonally opposite first segmental cutting edges, wherein each first segmental cutting edg
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: May 30, 2017
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventor: Christian Stark
  • Patent number: 9656333
    Abstract: A cutting insert for a tool for machining a workpiece, wherein the cutting insert has a 180° rotational symmetry about a bore axis extending perpendicularly and centrally through two opposing, identical base surfaces of the cutting insert, and has two identical parts which are connected along a center plane, wherein said center plane extends orthogonally to the bore axis and has the same distance from each of the two base surfaces, wherein each part has two identical mutually opposite main sides and two identical mutually opposite secondary sides, wherein each main side has a rectilinear main cutting edge extending parallel to the center plane, and each secondary side has a planar bearing surface extending orthogonally to the center plane, wherein the two main cutting edges of each part extend parallel to one another and transversely to the two main cutting edges of the respective other part, and wherein the two main cutting edges of each part extend parallel to the two bearing surfaces of the respective othe
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: May 23, 2017
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventor: Christian Stark
  • Patent number: 9573204
    Abstract: A cutting tool and a cutting insert, each of which including a base surface and an anti-slip arrangement adjacent thereto. Each anti-slip arrangement includes an actuator surface and non-parallel first and second abutment surfaces, and the actuator surface of the cutting tool is a surface of a clamp of the cutting tool. The cutting insert is mounted on the cutting tool via engagement of the base surfaces thereof and the clamp is operable to bias the actuator surfaces against each other and thereby force the first and second abutment surfaces against each other, for preventing slippage of the cutting insert along the tool's base surface.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: February 21, 2017
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9566651
    Abstract: An indexable cutting tool of a lever-lock type applies a clamping force. At a bottom of an insert fixing portion, there is formed a pillar-shaped lever in a state in which one end protrudes from a placement surface of the insert fixing portion. A screw applies a pressing force to the lever between the one end and a portion such that the lever is pressed and inclined with the portion s a fulcrum in the middle of the lever so that the one end applies a clamping force to the cutting insert.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 14, 2017
    Assignee: Tungaloy Corporation
    Inventor: Ryo Hirukawa
  • Patent number: 9475134
    Abstract: A cutting insert has polygonal first and second end surfaces which are connected by a peripheral side surface, each end surface defining first and second end planes, respectively. The peripheral side surface has first peripheral side portions alternated in the circumferential direction with second peripheral side portions. The first peripheral side portions are inverse copies of the second peripheral side portions. Each peripheral side portion includes first and second sub-faces which form different angles with the first and second end planes. The first and second sub-faces intersect one another between the first and second end planes to form a line which is parallel to the first and second end planes.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: October 25, 2016
    Assignee: Iscar, Ltd.
    Inventors: Amir Satran, Evgeny Tulchinsky
  • Patent number: 9302326
    Abstract: A cutting tool includes a cutting insert comprising a top surface, a bottom surface, a clamping surface for abutting a clamp, a cutting edge, a hole extending through the insert from the bottom surface to the clamping surface, and a channel extending from the clamping surface to proximate the cutting edge, and a tool holder comprising a tool holder body having a pocket for receiving the insert, a clamp for contacting the clamping surface and clamping the insert in the pocket, and a tool holder passage in the body in flow communication with the hole in the insert. A cutting insert is also provided.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: April 5, 2016
    Assignee: Seco Tools AB
    Inventor: Volker Höfermann
  • Patent number: 9296054
    Abstract: An indexable cutting insert having a triangular shape includes three sides and three cutting corners. A first planar surface and a second, parallel planar surface connects the three sides. In one embodiment, three major cutting edges are formed at an intersection between a respective side and the first planar surface. In another aspect, six major cutting edges are formed at an intersection between a respective side and the planar surfaces. In another aspect six major right-handed cutting edges and six major left-handed cutting edges are formed at an intersection between the sides and the first and second planar surfaces.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 29, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Jeffrey Francis Kovac, Jeremy Joseph Verellen, Konrad Spitzenberger
  • Patent number: 9186732
    Abstract: A cutting insert includes a first mounting surface, a second mounting surface located on an opposite side of the insert from the first mounting surface, and a first side surface disposed between the first mounting surface and the second mounting surface. The insert further includes a first groove extending substantially diagonally across the first side surface and dividing the first side surface into discrete, separated, triangular first and second first side support surfaces. The first and second first side support surfaces are each bounded along first and second edges thereof by rake surfaces forming non-zero angles with the first and second side support surfaces and along third edges thereof by the groove.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: November 17, 2015
    Assignee: SECO TOOLS AB
    Inventors: Benjamin Michelet, Bertrand Riviere
  • Patent number: 9103418
    Abstract: A machine tool assembly includes a basic body, and a clamp and an actuator component mounted to the basic body. The clamp and actuator components include ramping surfaces for cooperatively biasing the clamp into an engagement position. The actuator component is configured to move along an actuator movement axis and includes an actuator relief surface connected, and extending at a different angle, to the actuator component's ramping surface. The different angle is configured to facilitate disengagement of the actuator component and clamp for a smaller movement of the actuator component along the actuator movement axis than would have been the case in the absence of such configuration, thereby allowing a compact construction of the assembly.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: August 11, 2015
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 9089910
    Abstract: A cutting tool (10) includes a cutting portion (14) and a clamping mechanism (16) configured to be brought between an unclamped position in which a cutting insert (12) is removable from the cutting portion (14), and a clamped position in which the cutting insert (12) is clamped to the cutting portion (14). The clamping mechanism (16) includes a clamp (20) and a cam shaft (18). The clamp (20) is formed with a growth pattern region (20C6) having a varying diameter. The cam is formed with a growth pattern region (18C1) having a varying diameter. The growth pattern regions (20C6, 18C4) are configured for engaging each other to transform rotary motion of the cam shaft (18) into linear motion of the clamp (20) to thereby move the clamping mechanism (16) into the clamped position.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: July 28, 2015
    Assignee: Iscar, Ltd.
    Inventors: Gil Hecht, Danny Chen
  • Patent number: 9089908
    Abstract: As viewed from a side opposing a bottom face (6) of an insert attachment seat, an angle (?) between first and second restraint wall faces (7a) and (7b) rising from the bottom face (6) is smaller than an angle (?) between two peripheral faces of a cutting insert contacting them respectively. A first peripheral face of the cutting insert contacts the first restraint wall face (7a) in a substantially parallel posture with the extending direction of the first restraint wall face (7a), while the second peripheral face contacts the second restraint wall face (7b) in an end portion of the second restraint wall face (7b).
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: July 28, 2015
    Assignee: Tungaloy Corpration
    Inventors: Kazuyuki Uno, Naoto Nishiya
  • Patent number: 8950983
    Abstract: A cutting tool has a main tool body and at least one insert seat disposed thereon. The seat has a bottom surface for mounting a cutting insert, and further has a dowel pin, which penetrates a through-hole of the mounted cutting insert and the bottom surface and can be fixed to the main tool body. A center longitudinal axis of the fixed dowel pin is arranged at an acute angle with respect to the bottom surface. The dowel pin contains a spherical segment for mounting on a bearing surface of the through-hole. The surface of the spherical segment is interrupted by a segment groove.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: February 10, 2015
    Assignee: Ceratizit Austria Gesellschaft mbH
    Inventors: Peter Burtscher, Anton Diepold, Uwe Schleinkofer
  • Publication number: 20140348601
    Abstract: A cutting insert includes opposing forward and rear surfaces and a peripheral surface extending therebetween. The peripheral surface includes opposing side surfaces and opposing upper and lower surfaces. The upper surface and the forward surface intersect to form a main cutting edge having an associated relief surface that extends therefrom in the forward surface. One of the side surfaces comprises an insert side abutment surface. The rear surface comprises an insert rear abutment surface. The lower surface comprises an insert lower abutment surface. The insert rear and insert lower abutment surfaces form an obtuse abutment angle with respect to each other. In a side view along a side axis, a relief surface line tangent to the relief surface intersects the insert lower abutment surface.
    Type: Application
    Filed: May 21, 2013
    Publication date: November 27, 2014
    Applicant: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8882404
    Abstract: A cutting tool comprising a cutting tool holder and a cutting insert adapted to be mounted thereon. The tool holder comprises an insert seat defined by a base and at least one side wall extending from the base to define an insert seat space adapted to receive therein the insert. The seat comprises a support element extending into the insert seat from the base, and a fastening member engageable with the seat. The fastening member is displaceable with respect thereto between a mounting position adapted to allow the insert to be mounted onto the seat and a securing position adapted for securing the insert within the seat. The insert is formed with a securing cavity and when the insert is mounted onto the tool holder and is in the securing position, a portion of the support element and the fastening member is received within the cavity of the insert.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: November 11, 2014
    Assignee: No Screw Ltd
    Inventor: Gershon Harif
  • Patent number: 8794878
    Abstract: A cutting tool comprising a cutting tool holder and a cutting insert adapted to be mounted thereon. The tool holder comprises an insert seat defined by a base and at least one side wall extending from the base to define an insert seat space adapted to receive therein the insert. The seat comprises a support element extending into the insert seat from the base, and a fastening member engageable with the seat. The fastening member is displaceable with respect thereto between a mounting position adapted to allow the insert to be mounted onto the seat and a securing position adapted for securing the insert within the seat. The insert is formed with a securing cavity and when the insert is mounted onto the tool holder and is in the securing position, a portion of the support element and the fastening member is received within the cavity of the insert.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 5, 2014
    Assignee: No Screw Ltd
    Inventor: Gershon Harif
  • Patent number: 8790049
    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: Grant
    Filed: February 7, 2012
    Date of Patent: July 29, 2014
    Assignee: Iscar, Ltd.
    Inventor: Danny Chen
  • Patent number: 8708613
    Abstract: In a cutting tool used for internal machining operations, a cutting insert with a single cutting portion is removably secured to an insert holder. The cutting insert has two opposing end surfaces, and an insert peripheral surface extending therebetween having three spaced apart abutment surfaces. The insert holder has a holder portion with a holder peripheral surface and an adjacent seating surface. At least one protuberance having four spaced apart reaction surfaces protrudes from the seating surface. The cutting insert is securable to the holding portion in left-hand and right-hand assembly positions, with the three abutment surfaces in clamping contact with three of the four reaction surfaces. In the left-hand assembly position, a first end surface is in clamping contact with the seating surface, and in the right-hand assembly position, a second end surface is in clamping contact with the seating surface.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: April 29, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • 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: 8678718
    Abstract: In a cutting tool having an indexable cutting insert with four cutting portions, the cutting insert is securable within a holder portion in four index positions by means of a fastener. The cutting insert has two opposing end surfaces with a peripheral side surface and a central axis extending therebetween, the peripheral side surface having exactly four abutment zones. The insert holder has a holder portion and a body portion, the holder portion having a sidewall surface with a first, second and third reaction zone. The cutting insert is divided into four imaginary quadrants about its central axis and the four abutment zones are located entirely in two of the four imaginary quadrants, and for each index position, three of the four abutment zones are in clamping contact with the three reaction zones.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 25, 2014
    Assignee: Iscar, Ltd.
    Inventor: Gil Hecht
  • Patent number: 8641330
    Abstract: A tool for chip removing machining includes a tool holder in order to releasably hold at least one cutting insert. The cutting insert is arranged to be fixable in an insert pocket of the tool holder by a locking screw. The locking screw has a head and is in threaded engagement with the tool holder via a threaded joint which is arranged to allow tilting of the locking screw in a working direction of the tool when the locking screw is partly unscrewed so that the cutting insert can be removed from the insert pocket. The head is arranged to clamp against a part of a front side of the cutting insert. The tool holder includes at least one space at least partly arranged to receive the head when the screw is partly unscrewed.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: February 4, 2014
    Assignee: Seco Tools AB
    Inventor: Mikael Jansson
  • Patent number: 8616809
    Abstract: The present invention provides a toolholder mountable on a lathe or other machine tool for supporting a cutting plate relative to a workpiece for cutting or shaping the workpiece. The toolholder including a body having a tapered tool base at one end thereof, the tool base defining a tool seat for supporting a cutting plate. A plug screw having a head defining threads on an outer surface thereof for engaging a threaded hole in the tool base is also provided. The plug screw further defining a shank extending eccentrically from the head, the shank being receivable through a mounting hole defined by the cutting plate for locating the cutting plate relative to the tool seat upon rotation of the plug screw relative to the tool base. A lock nut is provided for receiving a threaded end of the shank for securing the cutting plate to the tool base and toolholder.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: December 31, 2013
    Inventor: James F. Farrell
  • Patent number: 8496414
    Abstract: A clamping member for reliably inserting a protrusion portion thereof into a mounting hole of a cutting insert so as to engage the protrusion portion with an inner peripheral surface of the cutting insert and strongly clamp the cutting insert on a tool holder. The clamping member includes a body having a top surface engageable with a head of a clamping bolt, a bottom surface facing the tool holder and a bolt hole for insertion of the clamping bolt, and a protrusion portion protruding from the bottom surface and being engageable with a mounting hole formed in the cutting insert. The protrusion portion has an inclined surface facing toward a rotational direction about a center axis of the clamping bolt, the inclined surface is inclined so that the protrusion portion is gradually tapered from a base side thereof proximate the bottom surface toward an end side thereof distal from the bottom surface.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: July 30, 2013
    Assignee: Tungaloy Corporation
    Inventor: Katsura Mochizuki
  • Patent number: 8491230
    Abstract: An insert clamp secures a cutting insert having a central hole to a tool holder. The clamp includes a forward protrusion to be received in the central hole of the insert, a central body portion provided with a pressing part to press down the upper surface of the insert and a screw hole for a clamping screw to pass through, and a rear protrusion having a rear contact surface to come in contact with a rearward slanting surface of the tool holder. The forward protrusion is formed on the forward end of the insert clamp, an inside surface of the forward protrusion extends downward in a spaced state apart from the inner wall of the central hole of the insert, and a distal portion of the inside surface the forward protrusion is provided with a protuberance of convex curved surface to come in tangential contact with the inner wall of the insert.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: July 23, 2013
    Assignee: TaeguTec, Ltd.
    Inventors: Hong Sik Park, Ho-Hyoun Cho
  • Patent number: 8459162
    Abstract: In order to perform turning operations of the kind that has heretofore been performed by diamond-shaped inserts, an insert which is basically equilateral triangular in shape with multiple alternately usable cutting edges, of which all three corners are usable as cutting edges, without decreasing the positional accuracy of the cutting edge during cutting. At least one recess and a plurality of protrusions are formed on each side of the insert. The recess and protrusions formed on the insert are brought into engagement with a protrusion and recesses formed on a side wall of a seating groove formed in a holder. In this state, the insert is pressed against a bottom seating face and the side wall of the seating groove with a clamp as a means to stably restrain the insert. This prevents shifting of the cutting edge during cutting even if the direction of the cutting force changes.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: June 11, 2013
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Norihide Kimura, Masanobu Ueda
  • Publication number: 20130121776
    Abstract: A cutting insert can be clamped by a lever-lock clamping device to a tool body in a more stable and reliable manner. A cutting insert clamped by the clamping device to an insert seat formed on a tool body, includes: an upper surface and a lower surface each having a substantially polygonal contour shape; a plurality of side surfaces extending between the upper surface and the lower surface; a through-hole penetrating through the upper surface and the lower surface; and a concave notch portion for receiving a clamping force that is partially formed at a peripheral edge portion of the through-hole on the upper surface side.
    Type: Application
    Filed: January 8, 2013
    Publication date: May 16, 2013
    Applicant: TUNGALOY CORPORATION
    Inventor: TUNGALOY CORPORATION
  • Patent number: 8408847
    Abstract: The present invention relates to cutting tools and, more particularly, to cutting tools using clampable cutting inserts. The cutting tool includes a toolholder including at least one insert-receiving pocket, the insert-receiving pocket including at least one side abutment surface. The cutting tool further includes a cutting insert comprising an insert body having at least one insert supporting surface and a clamping hole including a clamping surface defining at least part of a non-circular, substantially elliptical cone. The cutting tool further includes a clamp having a clamp surface adapted to contact the clamping surface at two contact points such that the at least one side abutment surface and the at least one insert supporting surface are secured in a contacting relationship.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: April 2, 2013
    Assignee: Pramet Tools, s.r.o.
    Inventor: Jaromir Rysavy
  • Patent number: 8388272
    Abstract: A milling cutter includes a shank and upper portion with an insert pocket. The insert pocket includes a bottom surface, a radial support wall and an axial support wall. A cutting insert includes a hole extending from a bottom surface. A tapered pin includes a lower portion and a tapered upper portion. A spring engages the lower portion of the tapered pin and provides an upward biasing force on the tapered pin. A center axis of the tapered pin is closer to the radial support wall than a center axis of the hole of the cutting insert such that the tapered pin exerts pressure against the hole of the cutting insert to cause one of the side walls of the cutting insert to be forced against the radial support wall of the insert pocket when the cutting insert is mounted in the insert pocket.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: March 5, 2013
    Assignee: Kennametal Inc.
    Inventors: Ruy Frota De Souza Filho, Ronald Louis Dudzinsky, Kenneth George DeRoche
  • Patent number: RE46858
    Abstract: A cutting tool comprising a cutting tool holder and a cutting insert adapted to be mounted thereon. The tool holder comprises an insert seat defined by a base and at least one side wall extending from the base to define an insert seat space adapted to receive therein the insert. The seat comprises a support element extending into the insert seat from the base, and a fastening member engageable with the seat. The fastening member is displaceable with respect thereto between a mounting position adapted to allow the insert to be mounted onto the seat and a securing position adapted for securing the insert within the seat. The insert is formed with a securing cavity and when the insert is mounted onto the tool holder and is in the securing position, a portion of the support element and the fastening member is received within the cavity of the insert.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: May 22, 2018
    Assignee: NO SCREW LTD.
    Inventor: Gershon Harif