Patents Examined by Will Fridie, Jr.
  • Patent number: 10478902
    Abstract: A cutting tool for radial and axial recessing and for lateral motion for so-called grooving of primarily metallic materials, having a clamping holder and a cutting element base, fastened to the clamping holder, on which a cutting element rests, the cutting element being pressed onto the cutting element base by a clamping finger of a clamping claw, and the cutting element being guided on the cutting element base with a prism.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: November 19, 2019
    Assignee: CeramTec GmbH
    Inventors: Nebojsa Sevdic, Uwe Stemmer, Heinz Kressel
  • Patent number: 10343246
    Abstract: An automated machining apparatus has a lathe, a mill, and a workpiece holder that holds a plurality of workpieces to be machined. The workpiece holder includes a rotatable turret that has a plurality of workpiece mounting positions for mounting the plurality of workpieces to be machined to the rotatable turret. A controller in operable communication with the workpiece holder is operable to rotate the rotatable turret sequentially through different workpiece mounting positions according to program instructions that define machining operations to be performed on the plurality of workpieces.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: July 9, 2019
    Inventors: Gerald L Rowe, Jose Ramos
  • Patent number: 10307877
    Abstract: A machine tool that machines a workpiece by a tool includes a workpiece spindle device that holds the workpiece in a rotatable manner with a predefined workpiece rotational axis Rw as a center, one or more in-machine robots, and a connecting mechanism that attaches the one or more robots on the machine tool so that the one or more robots move independently from the workpiece, with the workpiece rotational axis Rw serving as a center.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: June 4, 2019
    Assignee: OKUMA CORPORATION
    Inventor: Shoichi Morimura
  • Patent number: 10307845
    Abstract: A threading tool includes: a tool main body; and a cutting edge portion, which is provided on a tip portion of the tool main body and has a rake face and a flank face. The cutting edge portion includes: a primary cutting edge extending in a tooth width direction of the cutting edge portion; two corner edges, one and other of which are provided on one and other of both ends of the primary cutting edge, respectively, and are in a convex curve shape; and two secondary cutting edges, one and other of which extend from the one and the other of the two corner edges to a rear end side of the cutting edge portion, respectively. Two secondary cutting edges are shorter than the primary cutting edge. At least one of the two secondary edges is slanted to a direction intersecting the primary cutting edge in an obtuse angle.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: June 4, 2019
    Assignees: SHIMODA IRON WORKS CO., LTD., MITSUBISHI MATERIALS CORPORATION
    Inventors: Kazumi Akashi, Takashi Koyama
  • Patent number: 10286513
    Abstract: A control part of a control device includes a learning controller and a learning determination part. The learning controller performs learning control in which a correction amount of a resultant command is obtained, based on an oscillation phase obtained from an oscillation command and the resultant command, and the correction amount is added to the resultant command. The learning determination part determines whether or not the oscillation amplitude of the oscillation command is smaller than a predetermined threshold, and when the oscillation amplitude is smaller than the predetermined threshold value, the learning determination part both sets the oscillation command generated by an oscillation command generation part to zero and turns off the learning control or only turns off the learning control.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: May 14, 2019
    Assignee: FANUC CORPORATION
    Inventor: Kenta Yamamoto
  • Patent number: 10279395
    Abstract: A cutting tool 1 includes a cutting edge 2, a rake face 4 and a flank 5 and is used for cutting a surface of a cylindrical or columnar work W by a skiving process. The cutting tool 1 is configured to satisfy a relational expression: tan?1(cos ?/cos(???)×tan?1(cos?1(r?/r))<??90° where “?” denotes a rake angle, “?” denotes an inclination angle of the cutting edge 2 with respect to the rotation axis A, “?” denotes an angle between a feed direction of the cutting tool 1 and a direction orthogonal to a rotation axis A in a plane view of the cutting tool 1 and the work W, “r” denotes a radius of an outer circumferential surface of the work W before processing, and “r?” denotes the radius of the outer circumferential surface of the work W after processing.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: May 7, 2019
    Assignee: AISIN KIKO CO., LTD.
    Inventors: Yoshiaki Koide, Masataka Kimura
  • Patent number: 10272504
    Abstract: Rotatable, solid cutting tool with both right-hand spirals and left-hand spirals, each of which includes an interrupted cutting edge having individual cutting edges. Individual cutting edges of the right hand spirals are axially staggered helically around a circumference of a cutting portion with respect to individual cutting edges of the left hand spirals so that, at each axial position along an axial length of the cutting portion, each radial cross-section includes both at least one individual cutting edge on a right hand spiral and at least one individual cutting edge on a left hand spiral. Individual cutting edges have a length along an outer circumference of the cutting tool that is the same for individual cutting edges of the right hand spiral and individual cutting edges of the left hand spirals. Cutting edges on differently handed spirals are both right handed cutting edges or both left handed cutting edges.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: April 30, 2019
    Assignee: SANDVIK INTELLECTUAL PROPERTY
    Inventors: Jason Ray Dodds, Sidney Toomes, Cody David Cluff
  • Patent number: 10259055
    Abstract: The purpose of the present invention is to provide a cutting insert capable of reducing cutting load and enhancing squareness.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: April 16, 2019
    Assignee: KORLOY INC.
    Inventors: Young-nam Choi, Sang-yong Lee, Sun-yong Ahn
  • Patent number: 10252361
    Abstract: This cylindrical cutter for skiving comprises a plurality of cutting edge parts in the circumferential direction by having tooth grooves be formed between circumferentially adjoining cutting edge parts with the tooth grooves being formed into a helical shape twisting in the axial direction. Cutting edge grooves are each formed in the cutting edge parts so as to divide the cutting edge parts into multiple sections in the length direction of the tooth grooves.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: April 9, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD.
    Inventors: Toshimasa Kikuchi, Yozo Nakamura, Naotaka Komatsu
  • Patent number: 10252355
    Abstract: A cutting tool has a tool body having at least one pocket, at least one cutting insert releasably fixed to the pocket and a fastening device for securing the insert in the pocket. The pocket has a raised portion) with a flat upper support face arranged to be received in a recess of the insert and support the insert by receiving a bottom surface of the recess bearing on the support face. A projecting member of the raised portion has delimiting walls designed to bear against border walls of the recess of an insert for establishing mutual contact therewith and prevent rotation of the insert in the pocket by receiving a rotational moment acting on the insert in an active chip-removing state of the tool.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: April 9, 2019
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Gilles Marie, Marc Rue, Jacques Gasthuys
  • Patent number: 10252354
    Abstract: A cutter for electrode graphite which has a shank at one end and a tool tip at the other end, and flutes extending from the shank to the tool tip, which space machining lands apart from each other in the circumferential direction. The tool tip is formed as a ball head section, in which the machining lands have a rounded contour, extending along a ball head radius. At least one of the machining lands is a rough-machining land and at least one other of the machining lands is a fine-machining land. Each machining land has a circumferential working area with a cylindrical surface-segment-shaped shell surface, the working area of each rough-machining land is a circumferential file with teeth which are worked into the shell surface of the working area, and the working area of each fine-machining land exterior grooves extends with a twist about the tool axis.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: April 9, 2019
    Assignee: Hufschmied Zerspanungssysteme GmbH
    Inventor: Ralph Hufschmied
  • Patent number: 10245645
    Abstract: A cutting insert includes a tool carrier having a body with a pocket, and a cutting tip affixed to the pocket by brazing. The pocket is defined by a vertical back wall and a horizontal support surface. A notch is formed at the intersection between the vertical back wall and the horizontal support surface. The notch has a non-planar first portion proximate the vertical back wall and formed with a radius, R1, and a planar second portion extending between the first portion and the horizontal support surface and formed at an inclination angle with respect to a plane parallel to the horizontal support surface of the pocket. The design of the notch significantly reduces thermal stress and eliminates the formation of cracks in the pocket of the tool carrier when using an injection molding process to form the tool carrier.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: April 2, 2019
    Assignee: KENNAMETAL INC.
    Inventors: Qi Wang, Neal Myers, Shi Chen, Igor Kaufmann
  • Patent number: 10239125
    Abstract: In an embodiment, a cutting insert includes an upper surface, a one or more side surfaces, and a cutting edge. The upper surface includes a first corner portion, and a first side that is adjacent to the first corner portion. The side surfaces are adjacent to the upper surface. The cutting edge is disposed on at least a portion of a section where the upper surface and the side surfaces intersect. The cutting edge includes first, second, third and fourth cutting edges. The first cutting edge is disposed at the first corner portion and has a convex curved shape. The second cutting edge is next to the first cutting edge, and has a linear shape. The third cutting edge is next to the second cutting edge, and has a convex curved shape. The fourth cutting edge is next to the third cutting edge on the first side.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: March 26, 2019
    Assignee: KYOCERA Corporation
    Inventor: Hirotoshi Gonzui
  • Patent number: 10239133
    Abstract: A rotating tool includes a tool body which rotates around an axial line, four or more chip discharge grooves which are formed on an outer periphery of the tool body with gaps therebetween in a circumferential direction, and a plurality of cutting inserts which are arranged in multiple stages along the chip discharge grooves. In a cross-sectional view perpendicular to the axial line, when a center angle formed between a pair of virtual straight lines which connects each of the cutting edges of the cutting inserts disposed in a pair of chip discharge grooves adjacent to each other in the circumferential direction and the axial line to each other is defined as an angle, a plurality of angles formed around the axial line include one maximum angle (?max), one minimum angle (?min), and two or more angles other than the angle (?max) and the angle (?min).
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: March 26, 2019
    Assignees: National University Corporation Nagoya University, MITSUBISHI MATERIALS CORPORATION
    Inventors: Norikazu Suzuki, Jun Kitajima
  • Patent number: 10220451
    Abstract: A end mill includes: an end mill body having a rotation axis, the end mill body including a shank portion and a cutting portion with an outer peripheral cutting edge; an end cutting edge including a first cutting edge and a second cutting edge; a first gash opening between the first cutting edge and the second cutting edge; and a second gash located adjacently to the first gash in the rotational direction, and opening to a side closer to the outside peripheral from the chisel portion. A ratio (L1/L2) of a length (L1) from a distal end of the end mill body to a terminal end of the first gash to a length (L2) from the distal end of the end mill body to a terminal end of the second gash, when viewed from a side, is from 0.8 to 1.1.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: March 5, 2019
    Assignee: KYOCERA CORPORATION
    Inventor: Masahiko Kuroda
  • Patent number: 10220450
    Abstract: The present invention discloses a vertically-mounted milling cutter insert and a multitooth milling cutter, wherein the vertically-mounted milling cutter insert comprises a insert base and a cutter tip unit, the insert base is set with a mounting hole for mounting the vertically-mounted milling cutter insert onto the milling cutter wheel, and the cutter tip unit is mounted on the insert base, and the cutter tip unit has a double-cutter tip structure. In the invention, the vertically-mounted milling cutter insert is positioned via the fitting between a bent-plane structure in the vertically-mounted milling cutter insert and a positioning structure in the milling cutter wheel, and the bent-plane structure will not be abraded in use. Because the bent-plane structure will not be abraded, reliable positioning may be guaranteed when two cutter tips are used.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: March 5, 2019
    Assignee: BEIJING WORLDIA DIAMOND TOOLS CO., LTD
    Inventors: Zongchao Zhang, Qi Han
  • Patent number: 10220454
    Abstract: An insert attachment mechanism (100) detachably attaches a cutting insert (2) to an insert attachment part (21) of a tool body (3). The insert attachment mechanism includes an adjustment member (30) and a wedge member (10). The adjustment member (30) is arranged on an inner side of the cutting inset so as to act on the cutting insert in the insert attachment part. The adjustment member is advanceable and retractable in a direction of the central axis of a screw member (40) by rotating the screw member. The wedge member and the cutting insert are arranged on the outer side of the adjustment member in the insert attachment part and exert a pressing force against the cutting insert and an inner wall surface of the insert attachment part. The wedge member (10) is configured such that the screw member (40) is accessible from the outer side of the wedge member.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: March 5, 2019
    Assignee: TUNGALOY CORPORATION
    Inventors: Makoto Satoh, Yuji Shinjo
  • Patent number: 10213889
    Abstract: In a machine tool and a control apparatus thereof, a repetitive movement unit is configured so that the cutting tool performs one repetitive movement with respect to multiple relative rotations between the workpiece and the cutting tool and so that a rotation angle of the relative rotation between the workpiece and the cutting tool during relative movement at a second speed is smaller than a rotation angle of the relative rotation during relative movement at a first speed in one repetitive movement. This configuration limits degradation of machining efficiency when the cutting tool machines the workpiece by performing one repetitive movement with respect to multiple relative rotations between the workpiece and the cutting tool.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: February 26, 2019
    Assignees: Citizen Watch Co., Ltd., Citizen Machinery Co., Ltd.
    Inventors: Kazuhiko Sannomiya, Hitoshi Matsumoto, Nobuyoshi Imasaki
  • Patent number: 10213849
    Abstract: A cutting insert according to an embodiment of the present invention has a cutting edge having a first corner cutting edge, a flat cutting edge, a connecting edge, a major cutting edge, and a second corner cutting edge in the order named. The major cutting edge has an upwardly protruding curvilinear portion, a first straight line portion extending from the curvilinear portion toward the connecting edge, and a second straight line portion extending from the curvilinear portion toward the second corner cutting edge. The flat cutting edge and the major cutting edge have a straight line shape, and the connecting edge has an outwardly protruding curvilinear shape in a top view. The flat cutting edge, the connecting edge, and the first straight line portion are located on a straight line in a side view.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: February 26, 2019
    Assignee: KYOCERA Corporation
    Inventor: Hirohisa Ishi
  • Patent number: 10213851
    Abstract: A cutting tool including: a tool body (2) provided with an insert support seat (5) including a major seat surface (5a) that supports a bearing surface of a cutting insert, a plurality of seat side surfaces (5b, 5c) that supports side surfaces of the cutting insert at different positions, and a thinned portion (5d) continuous with the major seat surface and the seat side surfaces; and a cutting insert attached to the insert support seat, wherein a ridge at a position where the major seat surface and the thinned portion intersect, a ridge at a position where the seat side surface and the thinned portion intersect, and a ridge at a position where the thinned portions continuous with each other intersect are each formed of a convex arc curved surface.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: February 26, 2019
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Yusuke Koike, Kouki Matsubara, Katsuya Nakakihara, Atsuhiko Maeta