Patents Examined by Boyer D. Ashley
  • Patent number: 11504784
    Abstract: A cutting tool with interconnected arms that increases the stiffness to weight ratio of the cutting tool is described. The principles of the invention can be applied to any cutting tool, such as a reamer, a milling cutter, a slotting cutter, and the like. In one example, a cutting ring includes a cutting head assembly with a leading arm, a trailing arm, and a cutting head supported by the leading arm and the trailing arm. The trailing arm interconnects with the leading arm of an adjacent cutting head assembly, and the leading arm interconnects with a trailing arm of another adjacent cutting head assembly. As a result of this interconnection of arms, the axial, radial and tangential stiffness to weight ratio of the cutting tool is increased. A support member may be included to further increase the stiffness to weight ratio.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: November 22, 2022
    Assignee: KENNAMETAL INC.
    Inventors: Logan M. Semnisky, Alan J. Bookheimer
  • Patent number: 11498134
    Abstract: The present invention belongs to the technical field of machining of fiber-reinforced composites, and relates to a method for measuring distribution of a thrust force during drilling of a unidirectional composite along with a fiber cutting angle. The method includes: cutting the surface a composite sample piece to form a groove; drilling on an existing experimental platform for measuring a thrust force during drilling, where a through hole obtained through the drilling is required to intersect with the groove; obtaining a curve of the thrust force during drilling, comparing the curve with a conventional curve of the thrust force to find a mutation point, and determining the mutation point, namely a fiber cutting angle at the groove; and calculating fluctuation periods of the thrust force according to machining parameters to reckon the distribution of the thrust force along with the fiber cutting angle in all the periods.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: November 15, 2022
    Inventors: Fuji Wang, Jiaxuan Hao, Yu Bai, Wei Liu, Jianwei Ma
  • Patent number: 11484954
    Abstract: Milling tool holder which comprises a first holder part, a second holder part, and a locking mechanism. The first holder part comprises a first cutting insert receptacle for receiving a first cutting insert and a second cutting insert receptacle for receiving a second cutting insert. The second holder part which, for adjusting a milling width, is variably positionable with respect to the first holder part along a longitudinal axis, comprises a third cutting insert receptacle for receiving a third cutting insert and a fourth cutting insert receptacle for receiving a fourth cutting insert. The locking mechanism is configured to fix the first and second holder parts to the adjusted milling width.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 1, 2022
    Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbH
    Inventor: Christian Stark
  • Patent number: 11484981
    Abstract: A tool magazine of a machine tool holds machining tools of multiple types. The number of stored machining tools of at least one type is more than one. When all the machining tools of the at least one type are unused, a first test-machining step of machining a workpiece using one machining tool of each type is performed. When the machined product is graded as acceptable, a second test-machining step of replacing the machining tool of the at least one type with an unused machining tool in the tool magazine and machining a new workpiece using the one machining tool of each type is performed. The second test-machining step is repeated until all the machining tools are used.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: November 1, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Takafumi Murakami
  • Patent number: 11478862
    Abstract: A textured surface in an outer surface of a tool holding section of a tool holder for increasing a surface area of the outer surface for dissipating heat from the tool holding section. The textured surface can comprise grooves around the outer surface of the tool holding section with a height and a width. Notches can be provided in sides of the grooves to further increase the surface area of the outer surface for dissipating heat from the tool holding section.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: October 25, 2022
    Assignee: Techniks, LLC
    Inventor: Scott Worthington
  • Patent number: 11471952
    Abstract: A rotary cutting tool includes a tool shank, a replaceable cutting head mounted on the tool shank, a coupling pin, and an actuation member. In one embodiment, the coupling pin has a cylindrical portion with a reduced-diameter portion defined by a pair of angled side walls separated by a bottom surface for cooperating with a non-threaded portion at one end of the actuation member. In another embodiment, the coupling pin has a cylindrical portion with a notch with a pair of side walls for cooperating with a frustoconical member at one end of the actuation member. When assembled, a pair of V-shaped contact surfaces on the cutting head engage a pair of oppositely facing V-shaped contact surfaces on the tool shank to provide stability against the momentum created by cutting forces in two different directions and securely hold the cutting head in place during machining operations.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: October 18, 2022
    Assignee: KENNAMETAL INC.
    Inventors: Marcelo Euripedes Silva, Ruy Frota de Souza Filho
  • Patent number: 11465252
    Abstract: This application relates to lubrication, and more particularly to an external cooling MQL manipulator and a machine tool and a lubrication method using the machine tool. The external cooling MQL manipulator includes a suspension structure, a robot arm, a controller and an oil mist generator. The suspension structure fixedly connects the robot arm and a frame, and a nozzle is provided on a free end of the robot arm; an oil mist generator is connected to the nozzle for ejecting oil mists to a processing area. When the machine tool works, the controller selects the corresponding lubrication parameters according to the processing parameters such as the cutter type and the workpiece material. The first motor and the second motor are controlled to rotate by the controller according to real-time changes of the processing positions detected by the detecting component, thereby adjusting the position of the nozzle.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: October 11, 2022
    Assignee: Sichuan University
    Inventors: Wu Zhao, Zeyuan Yu, Zida Zhang, Ling Chen, Xin Guo, Miao Yu, Kai Zhang, Hao Wan, Lin Du, Wei Jiang, Nianhan Wu
  • Patent number: 11458549
    Abstract: A deburring chamfer tool has a main body including a working end for engaging a workpiece to be deburred. The working end is of a conical shape and has a first and a second cutting edge respectively extending lengthwise with reference to different slant reference lines which delimit the conical shape. Each of the first and the second cutting edges slope from a first end adjacent to the vertex of the conical shape to a second end adjacent to the base of the conical shape in a first length and a second length respectively. The second length is smaller than the first length.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: October 4, 2022
    Assignee: Hong Ann Tool Industries Co., Ltd.
    Inventor: Cheng-Wei Su
  • Patent number: 11458544
    Abstract: Rotatable assembly (10) having one end (12) adapted to be secured to a rotatable support for rotating the rotatable assembly (10) about a rotational axis (28), the rotatable assembly (10) comprising: a main body (18) having a cavity (56); a damping mass (38) arranged within the cavity (56) and movable in radial directions (30), substantially perpendicular to the rotational axis (28), relative to the main body (18); a damping structure (36) arranged to support the damping mass (38) relative to the main body (18) and arranged to damp vibrational movements of the damping mass (38) relative to the main body (18) in the radial directions (30); wherein the damping structure (36) comprises a plurality of spring elements (40); and wherein each spring element (40) has a flat appearance.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: October 4, 2022
    Assignee: MAQ AB
    Inventors: Qilin Fu, Cornel-Mihai Nicolescu, Amir Rashid
  • Patent number: 11453066
    Abstract: An adjusting device 17 for fine adjustment of a cutting support 14, which is adjustable on a basic body 12 of a cutting tool 10, relative to the basic body 12, with an adjusting screw 63 which determines the position of the cutting support 14 relative to the basic body 12. The adjusting device 17 comprises a threaded bushing 61 with which the set screw 63 is screwed and which has a wall segment 66 which is elastically deformable transversely to the socket axis 70, and a pressure element 64 arranged laterally of the threaded bushing 61 which presses the wall segment 66 against the set screw 63.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: September 27, 2022
    Assignee: Guehring KG
    Inventors: Gerd Heckel, Hans-Peter Hollfelder, Juergen Thanner
  • Patent number: 11433463
    Abstract: A rotary bit configured to deburr and swage an end of a tube, comprising a first end configured to deburr and swage the end of the tube, and a second end configured to be secured to a rotary device, wherein the first end includes a plurality of blades that extend axially along the first end and radially outward from the rotary bit, the plurality of blades including a plurality of leading blades and a plurality of finishing blades, the leading blades configured to initially deburr and swage the end of the tube upon insertion of the rotary bit into the end of the tube, and the finishing blades configured to complete deburring and swaging of the end of the tube, the finishing blades extending radially outward from the rotary bit to a greater extent than the leading blades.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: September 6, 2022
    Assignee: Mueller Industries, Inc.
    Inventors: John A. Atkinson, Jeston S. Cowen, Justin Gast, Chris Mueller
  • Patent number: 11426829
    Abstract: Disclosed is a machine tool including: a base having a pair of first-axial slides facing each other at both sides of a mounting space; a saddle coupled to the first-axial slides of the base to slide in a first axis direction and having a pair of second-axial slides facing each other; a crosspiece coupled to the second-axial slides of the saddle to slide in a second axis direction and having a pair of third-axial slides facing each other; a vertical ram coupled to the third-axial slides of the crosspiece to slide in a direction perpendicular; and a table disposed in the mounting space of the base to be able to rotate relative to the base.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: August 30, 2022
    Inventors: Dal Ho Lee, Dennis Korff, Erik Nowak, Sebastian Spengler, Je Wang Kim, Behzad Jalizi, Marc Sieber, Johannes Hoerner, Thomas Schneider, Sang Mook Han
  • Patent number: 11426893
    Abstract: A machining center, comprising: a number N of workpiece tables equal to or greater than three, a number N of first guides, which extend parallel to a first direction; along said first guides being movable respective to workpiece tables, one for each first guide, a number N?1 of second guides, which extend parallel to a second direction transverse to said first direction, a number N?1 of machining groups each comprising at least one machining head; each machining group being movable parallel to said second direction along a respective second guide; a number NĂ—(N?1) of machining areas wherein the machining groups can operate on workpieces present on said tables; along each first guide, or for a respective table, there being present N?1 machining areas, one for each machining group, so that each machining group can operate, according to a programmed work cycle, on all said N workpiece tables, a number N of workpiece loading/unloading areas, one for each workpiece table.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: August 30, 2022
    Assignee: PAOLINO BACCI S.R.L.
    Inventors: Giuseppe Bacci, Paolo Bacci, Nino Bacci
  • Patent number: 11413696
    Abstract: An indexable cutting tool stably clamps cutting inserts and prevents contact between head parts of fasteners and workpieces. Recesses with a bottom are formed in an upper surface of a cutting insert. Part of an inner wall surface of each recess curves and bulges toward a center axis of the recess. The recess is divided into first to fourth regions by a first imaginary reference plane parallel to a rotation axis of a body, and a second imaginary reference plane perpendicular to the rotation axis. The second region is on a center side and on a proximal side of the body. A tapered surface of a fastener contacts the curved surface within the second region. A center axis of the fastener inclines so a head part opposite a distal end part is closer to the center side and to the proximal side of the body than the distal end part.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: August 16, 2022
    Inventor: Hikaru Shiroma
  • Patent number: 11400523
    Abstract: A drilling tool, in particular a spiral drill, has a drill longitudinal axis, at least two flutes extending at a twist angle with respect to the drill longitudinal axis, webs formed between the flutes, and lands formed on a lateral surface of the webs. Guide rings are at least partially formed on the lands. The guide rings extend at an angle different from the twist angle to the drill longitudinal axis. At least one guide chamfer is formed on at least one land in addition to the guide rings. The guide chamfer extends parallel to the twist angle and in front of the guide rings with respect to the direction of rotation of the drilling tool.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: August 2, 2022
    Inventors: Rainer Walcher, Jochen Walcher, Matthias Walcher, Oliver Rapp
  • Patent number: 11389881
    Abstract: An angle head holder has a steering assembly and a holder assembly rotatably mounted in the steering assembly. The holder assembly has a cutter spindle, a threaded rod, multiple balls, and a collet. The cutter spindle has a central hole and a first annular groove radially formed in the central hole at a position near a rear end of the cutter spindle. The threaded rod has a second annular groove aligning with the first annular groove to form a ball groove between the threaded rod and the cutter spindle. The balls are arranged in the ball groove. The collet is inserted in the central hole of the cutter spindle from a front end of the cutter spindle and is connected to the threaded rod with threaded connection.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: July 19, 2022
    Inventor: Pen Hung Chen
  • Patent number: 11383341
    Abstract: A machine tool configured to attach multiple tools to a turret is provided to improve the efficiency of a tool exchanging operation and, thus, also the production efficiency. A control device determines whether an expired tool, which is a tool needs to be exchanged, is present among the tools held by the turret. The control device sets a tool exchanging position, which is a position within the movable range of a head section and is a position where the expired tool is exchanged with a new tool. If the control device determines that an expired tool is present, the control device causes a head section driving device to move the head and rotate the turret to position the expired tool at the tool exchanging position.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: July 12, 2022
    Inventor: Shinya Kumazaki
  • Patent number: 11370041
    Abstract: The present invention relates to a slanting-bed feed processing machine tool of a large propeller. The machine tool comprises a slanting column feed bed, a machine tool spindle, a workpiece rotary worktable, a large propeller and a bed feed mechanism. The present invention coordinates the geometrical relationship between the machine tool and the large propeller to ensure that the slanting column feed bed moves between two blades, thereby reducing the overhang length of the spindle. Different forms of workpiece rotary worktables and bed feed mechanisms are selected according to different slanting column feed beds. Four types of slanting column feed beds are designed, which can be selected, optimized and applied for different processing objects. The present invention enhances the processing stiffness of the spindle and solves the problem of poor processing quality of the large propeller caused by machine tool vibration.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: June 28, 2022
    Inventors: Yongqing Wang, Tianran Liu, Haibo Liu, Kuo Liu, Te Li, Dongming Guo
  • Patent number: 11364545
    Abstract: A power tool includes a housing (10), a spindle (4) supported in the housing to be pivotable or rotatable about a driving axis, a clamping shaft (60) that is selectively movable in the up-down direction relative to the spindle, a biasing member (70), a release member (71) and an actuating member (50). The release member is selectively movable in the up-down direction relative to the spindle and is configured to selectively interrupt transmission of upward biasing force from the biasing member to the clamping shaft. The release member is also configured to be locked to the spindle in a locked position while transmission of the biasing force is being interrupted. The actuating member is movable upward in the up-down direction relative to the spindle in response to being pressed upward by a clamping part (64) or by a tool accessory (91) to thereby unlock the release member from the spindle.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: June 21, 2022
    Inventor: Yonosuke Aoki
  • Patent number: 11344957
    Abstract: A key processing machine is described comprising an automatic cutter change device, a key shape learning device, a clamp component and a base. The automatic cutter change device comprises a frame structure, a cutter head, a rotary disc and a first motor unit. The rotary disc is fitted with a plurality of chambers used to accommodate the said cutter head. The cutter head is installed in the said chambers. The rotary disc and the first motor unit are installed on the said frame structure, and the said first motor unit drives the said rotary disc to rotate and further drive the cutter head on the said rotary disc to rotate. The automatic cutter change device or the key shape learning device matches the clamp component to put the original key and the key blank for processing in the clamp component, saving human resources and increasing working efficiency.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: May 31, 2022
    Assignee: Zhejiang Yonguan Technology Co., Ltd
    Inventors: Yongfeng Xi, Junfeng Chen