Patents Examined by Nicole N Ramos
  • Patent number: 10799960
    Abstract: The milling cutter according to the present invention consists of insert holders (2) where these insert holders (2) project from a carrier disc (1) which is adapted for clamping onto the spindle of a machine tool, and the individual holders (2) are connected with one another by braces (3). Arms (5) are provided between the holders (2) and the carrier disc (1).
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: October 13, 2020
    Assignee: Západoceská univerzita v Plzni
    Inventors: Miroslav Zetek, Vaclav Schornik
  • Patent number: 10799961
    Abstract: A cutting insert includes an insert body; a pair of first surfaces; a through hole extending in a direction of a first axis; a second surface which connects the first surfaces and faces a direction of a second axis orthogonal to the first axis; a third surface which is disposed on the circumferential surface and is connected to the first surfaces and the second surface and faces a direction of a third axis; and cutting edges located at an intersection ridge line between the first surface and the second surface and at an intersection ridge line between the second surface and the third surface. The second surface has a projection part protruding in the direction of the second axis, and as viewed from the direction of the second axis, the through hole and the projection part are disposed to overlap each other.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: October 13, 2020
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Jun Kitajima, Masashi Kanbara, Shigeru Ishimori, Chinami Sakamoto
  • Patent number: 10799956
    Abstract: In an indexable rotary cutting tool of the present invention, a cutting edge portion of an insert includes a peripheral cutting edge, a bottom cutting edge, a cutting edge of a corner R, and a chamfered surface, a radial rake angle (?) of the cutting edge of the corner R has a negative value in an entire edge length region of the cutting edge of the corner R, and the radial rake angle (?) becomes a minimum value at an intermediate portion located between a pair of boundary points (P, Q) in the cutting edge of the corner R.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: October 13, 2020
    Assignee: Mitsubishi Hitachi Tool Engineering, Ltd.
    Inventors: Yasuhiro Kiuchi, Yoshiyuki Kobayashi, Takao Nakamigawa, Fumihiko Inagaki, Yuuki Hayashi
  • Patent number: 10792734
    Abstract: Provided is a cutting tool for back turning capable of improving chipping resistance. A cutting tool wherein a wall surface of a chip breaker includes a first wall surface that is formed along a first ridgeline, and a reinforcing surface that is connected to the first wall surface and a first end surface at an end portion of the chip breaker on the side of a first cutting edge, and that forms an angle of 90 degrees or an obtuse angle with the first end surface.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: October 6, 2020
    Assignee: TUNGALOY CORPORATION
    Inventor: Ryo Hirukawa
  • Patent number: 10792735
    Abstract: A machine tool includes a spindle including a tool insertion portion having a shape of an opening into which a shank of a tool is inserted and configured to attach the tool thereto, a tool change unit configured to change the tool attached to the spindle while gripping the tool, an air supply unit configured to supply air to a gap between the tool insertion portion and the shank of the tool when the tool change unit changes the tool, and a controller configured to control driving of at least any one of the spindle and the tool change unit to allow the tool and the tool insertion portion to reciprocate relative to each other in a predetermined direction with the shank of the tool inserted into the tool insertion portion and with a gap provided between the tool insertion portion and the shank of the tool.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: October 6, 2020
    Assignee: DMG MORI CO., LTD.
    Inventor: Koji Yamamoto
  • Patent number: 10766077
    Abstract: The holder has a first surface and a second surface. The head includes a cutting edge portion and a shank portion. The holder is provided with a first hole and a second hole communicating with the first hole, the first hole extending in a third direction inclined by a second angle relative to a second direction extending from the second surface toward the first surface when viewed in a direction parallel to the axis line. The shank portion has a flat surface portion, and is provided inside the second hole. The fastening portion is provided inside the first hole, and is in contact with the flat surface portion. In a plane perpendicular to the axis line, a third angle between the second direction and a fourth direction perpendicular to the flat surface portion is larger than the second angle. The third angle is less than 90°.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: September 8, 2020
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Yoshikatsu Mori, Kouki Matsubara, Ryusei Hamada, Masaaki Jindai, Kazuhiko Kashima, Yasuhiro Kajiwara
  • 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: 10751818
    Abstract: Provided is a cutter for skiving that includes cutting teeth that are disposed side by side in a longitudinal direction of tooth grooves and have tooth heights set so as to increase from a downstream side toward an upstream side in a cutting direction, and cutting teeth that are disposed side by side in a longitudinal direction of cutting edge grooves and have tooth heights set so as to incrementally increase from a downstream side toward an upstream side in a rotational direction for each number M of tooth trace patterns (where M is the smallest natural number of at least 2) derived by Equation (1) below. St:Sc=M:N (1), where St is a number of the tooth grooves, Sc is a number of the cutting edge grooves, and N is a number of patterns (where N is the smallest natural number) on a cutting face.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: August 25, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD.
    Inventor: Tetsuji Monden
  • Patent number: 10751814
    Abstract: A cutting insert, an associated tool holder, and a tool comprising such a cutting insert and such a tool holder. The cutting insert has a base body, which defines a cutting insert longitudinal axis, at least one cutting body, which laterally projects from a periphery of the base body and comprises a cutting edge, and a cutting insert bore, which is provided in the base body and extends along the cutting insert longitudinal axis, wherein on an underside, running transversely to the cutting insert longitudinal axis, of the base body are provided a plurality of elevations, which are arranged distributed in the peripheral direction and protrude from the underside of the base body, so that, between respectively two adjacent elevations, a relative depression is respectively obtained, wherein the cutting insert comprises at least one radial contact surface, a plurality of axial contact surfaces and a plurality of torque transfer surfaces for a bearing contact of the cutting insert against the tool holder.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: August 25, 2020
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventors: Tobias Kemmler, Matthias Luik
  • Patent number: 10744567
    Abstract: The invention provides a control apparatus for a machine tool, which can perform reciprocating vibration in consideration of a vibration frequency, increase flexibility in machining a workpiece, and perform vibration cutting by means of an external spindle or the like without rotating a spindle. The control apparatus and the machine tool include control means. The control means includes an imaginary spindle regarded as a spindle for rotating a workpiece W or a cutting tool. The control means sets the number of rotations of the imaginary spindle and the number of reciprocating vibrations in accordance with a vibration frequency attributable to a cycle during which an operation instruction can be issued.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: August 18, 2020
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.
    Inventors: Kazuhiko Sannomiya, Takaichi Nakaya
  • Patent number: 10744575
    Abstract: A drill tip may include a first part and a second part. The first part includes a cutting edge located at a side of a first end, and a recess located at a side of a second end, where the first end is one side of a central axis and the second end is another side of the central axis. The second part includes a shank portion extending along the central axis, and an engaging portion which connects to the shank portion at a side of the first end and includes a diameter greater than the shank portion. The engaging portion is located in the recess.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: August 18, 2020
    Assignee: KYOCERA CORPORATION
    Inventor: Katsura Hayashi
  • Patent number: 10737362
    Abstract: A machine tool, in particular multi-spindle turning machine, comprising a machine frame, a turret body being rotatably supported by the machine frame, a plurality of workpiece spindles being arranged on the turret body, each of the workpiece spindles having a workpiece receiving portion for receiving a respective workpiece on one side of the turret body facing a working space of the machine tool, and a plurality of tool post assemblies supported by the machine frame around the turret body, wherein each tool post assembly includes a tool post having one or more tool cartridge receiving openings respectively being configured to detachably receive a tool holder cartridge TC holding a tool.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: August 11, 2020
    Assignee: GILDEMEISTER ITALIANA S.P.A.
    Inventors: Enrico Persico, Vittore Battaglia, Franco Rigolone
  • Patent number: 10737337
    Abstract: A milling tool is suggested having a base body (3), a central axis (M), and a front side (5), whereby at least two geometrically defined first front edges (9) that are arranged, respectively, at front side (5) of base body (3) exhibit a first edge section (13) facing central axis (M). Milling tool (1) distinguishes itself by the first edge sections (13) of the at least two front edges (9) being formed in an ascending fashion towards center axis (M), so that they form a centering tip (15), and that centering tip (15) is arranged in a recessed manner in an axial direction when compared with an axial outermost point (17) of at least two of the first front edges (9) (FIG. 1).
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: August 11, 2020
    Assignee: Mapal Fabrik Für Präzisionswerkzeuge Dr. Kress KG
    Inventors: Ulrich Krenzer, Marco Müller
  • Patent number: 10730707
    Abstract: The invention relates to a transport device (38) for transporting a workpiece (23) between a clamping chuck (22) and a workpiece carrier (30). The transport device (38) comprises a gripper arrangement (39) with a pivot arm (40). One end of the pivot arm (40) is supported on the machine tool (20) and, in particular, a machine slide (25) via a first pivot drive (41) so as to be pivotable about a first pivot axis (S1). On the other end, the pivot arm (40) supports a second pivot drive (42) that defines a second pivot axis (S2). A workpiece gripper (43) is supported so as to be pivotable about this second pivot axis (S2). The two pivot axes are inclined by 45° relative to each other. A workpiece (23) held by the workpiece gripper (43) has a workpiece longitudinal axis (W) that extends in a first position (I) of the workpiece gripper (43) at a right angle with respect to the pivot axis (S1).
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: August 4, 2020
    Assignee: WALTER MASCHINENBAU GMBH
    Inventor: Lukas Gussmann
  • Patent number: 10730120
    Abstract: Pipe machining apparatuses are provided. In some aspects, a pipe machining apparatus may include a hinge to allow two sections of the pipe machining apparatus to move relative to one another. In another aspect, a support member may be provided to support a pipe machining apparatus on a surface. In a further aspect, a support member may be provided that allows lifting of a pipe machining apparatus in either a horizontal position or a vertical position.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: August 4, 2020
    Assignee: ILLINOIS TOOL WORKS
    Inventors: Kenneth R. Pierce, Michael W. Gearhart
  • Patent number: 10722954
    Abstract: Dual cutting milling tools for removing material from a workpiece include two cutting portions, with one cutting portion being configured for ruled milling, and the other cutting portion being configured for hemstitch milling. In this manner, the number of tool changes for a given manufacturing process may be reduced. Dual cutting milling tools include a first cutting portion and a second cutting portion both formed in a shank, with the first cutting portion being configured to perform hemstitch milling on the workpiece, and the second cutting portion being configured to perform ruled milling on the workpiece. Methods of removing material from a workpiece may include both hemstitch milling the workpiece with the first cutting portion of the dual cutting milling tool and performing ruled milling of the workpiece with the second cutting portion of the dual cutting milling tool, without changing tools in the milling machine.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: July 28, 2020
    Assignee: The Boeing Company
    Inventor: Clifford D. Borowicz
  • Patent number: 10722956
    Abstract: An end mill includes an end mill body having a bar-shape extending along a rotation axis and including a first end and a second end, a side surface, a first end cutting edge, a second end cutting edge, a first peripheral cutting edge extending from the first end cutting edge, and a second peripheral cutting edge extending from the second end cutting edge. In which, L2 is smaller than L1, where L1 is a distance from the rotation axis to the first peripheral cutting edge, and L2 is a distance from the rotation axis to the second peripheral cutting edge in a cross section orthogonal to the rotation axis. And ?2 is greater than ?1, where ?1 is a rake angle of the first peripheral cutting edge, and ?2 is a rake angle of the second peripheral cutting edge.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: July 28, 2020
    Assignee: KYOCERA CORPORATION
    Inventor: Yuusaku Takatake
  • Patent number: 10695842
    Abstract: A horizontal lathe machine includes a work spindle unit disposed on a middle portion of a machine base and proximate to a front side of the machine base for holding a workpiece in an X-direction, and two tooling turret units located at two opposite sides of the spindle unit and driven to move in the X-direction by X-direction driving units. Each turret unit has a saddle movable on the machine base in the X-direction, and a turret driven by a turret driving member to rotate about a turret axis in a Y-direction that is perpendicular to the X-direction for facilitating a tool changing operation.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: June 30, 2020
    Inventor: Hsuan-Lung Wu
  • Patent number: 10695843
    Abstract: A system includes a component to be machined, the component having a plastic base body having an outer diameter and a longitudinal axis and at least one clamping auxiliary structure, and a clamping element configured to clamp the component using the clamping auxiliary structure. The clamping element includes at least one clamping jaw having at least one counter-clamping auxiliary structure that is configured to engage the clamping auxiliary structure and to fix the component in an interference-fit manner in the axial direction with respect to the clamping element. Also a machining method using the system.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 30, 2020
    Assignee: AKTIEBOLAGET SKF
    Inventors: Erich Pfandl, Johann Moitzi
  • Patent number: 10695851
    Abstract: A method for deburring bevel gears using a deburring tool, which comprises at least one cutting edge, having the following steps: rotationally driving the deburring tool around a deburring spindle axis, rotationally driving a bevel gear around a workpiece spindle axis, wherein the rotational driving of the deburring tool and the rotational driving of the bevel gear take place in a coupled manner with an inverse coupling transmission ratio, it is a continuous method for deburring, in which the cutting edge executes a relative flight movement in relation to the bevel gear, the relative flight movement is defined by a hypocycloid, and wherein a burr is removed at least on one tooth edge of a tooth gap in the region of the bevel gear toe and/or the bevel gear heel by a cutting contact of the cutting edge with the tooth edge.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: June 30, 2020
    Assignee: KLINGELNBERG GMBH
    Inventors: Karl-Martin Ribbeck, Gary Töpfer, Jürgen Weber