End Mill Patents (Class 409/52)
  • Patent number: 11331735
    Abstract: A toothed workpiece chamfering device having a chamfering head (2) which includes a first axis of rotation (B) for rotation of a first chamfering tool (6) and a second axis of rotation (T) for rotation of a second chamfering tool (8) wherein the first and second chamfering tools are of different types and their respective material removal methods are also different from one another. Preferably, the first and second axes of rotation are not coincident with one another and in a more preferred arrangement, the first tool axis and the second tool axis are arranged perpendicularly to one another.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: May 17, 2022
    Assignee: THE GLEASON WORKS
    Inventors: Michael J. Walker, Benjamin A. Hollander, Peter E. Chapin, Eric G. Mundt
  • Patent number: 9856920
    Abstract: By combining shaping and milling actions, or smilling, the cutting tool can move through the entire usable portion of the spline and machine a tool relief into the face of the adjacent feature such as a shoulder before retracting, reversing direction, and repeating the cycle. The smilling apparatus and manufacturing method eliminates the need for an annular spline relief and the full length of spline engagement can be utilized for strength. The effective width of the spline connection apparatus manufactured by the smilling process conserves space and increases the load carrying capability of the spline connection.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: January 2, 2018
    Assignee: FAIRFIELD MANUFACTURING COMPANY, INC.
    Inventors: Dan E. Phebus, William H. Hayward
  • Patent number: 8992144
    Abstract: A method of chip-removal machining a tooth gap of a work piece includes executing a first substantially linear plunging movement of the cutting tool along a first plunge vector and machining a region of the work piece near a tooth head of a first tooth flank of the tooth. A substantially transverse movement of the tool along a transverse vector is then executed to machine a region of the work piece near a tooth head of the second tooth flank of the tooth. A second plunging movement of the cutting tool along a vector path is then executed, to an end point of the second plunging movement that lies at a position of the work piece corresponding to the slot depth of the tooth gap to be fabricated. The cutting tool is rotated about an axis of rotation thereof during execution of these steps.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: March 31, 2015
    Assignee: Klingelnberg AG
    Inventors: Alexander Dürr, Wilhelm Kreh
  • Patent number: 8967926
    Abstract: A method of manufacturing bevel gears with a tool, such as a tapered milling tool (16), wherein the tool is located at a position offset (Rw) from the center position of a conventional face milling cutter and the tool follows a path, such as a circular arc path, during machining.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 3, 2015
    Assignee: The Gleason Works
    Inventor: Hermann J. Stadtfeld
  • Patent number: 8651779
    Abstract: A method for producing a drive shaft of a food processor, the drive shaft having an end-side, splined-shaft-like toothing that is movable into positively locking engagement with a complementarily formed clutch. The method includes producing the toothing by machining the drive shaft with a cylindrical milling cutter, wherein the cylindrical milling cutter engages with the drive shaft from a radial direction with respect to a longitudinal axis of the drive shaft; and positioning an axis of rotation of the cylindrical milling cutter cross-wise relative to the longitudinal axis of the drive shaft, wherein the axis of rotation of the cylindrical milling cutter is at an incline relative to the longitudinal axis of the drive shaft so that the axis of rotation and the longitudinal axis draw an angle of less than 90°.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: February 18, 2014
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Aleksander Oblak, Jurij Pesec, Roman Sabec
  • Patent number: 8491236
    Abstract: Provided is a method for machining a tooth plane that is formed on a circumferential surface of a cylindrical toothed member and that extends along a center axis of the toothed member. The method includes: cutting the tooth plane by a peripheral cutting edge of an end mill while keeping a rotation axis of the end mill at a predetermined steady orientation and moving the end mill parallel to the center axis of the toothed member; rotating the toothed member by a predetermined angle around the center axis of the toothed member; and cutting the tooth plane by the peripheral cutting edge of the end mill while keeping the rotation axis of the end mill at the steady orientation and moving the end mill parallel to the center axis of the toothed member.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: July 23, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshifumi Kawasaki, Masaki Kato, Toru Ikegawa
  • Patent number: 7574798
    Abstract: A device (10) for soft machining of bevel gears, having a receptacle (12) for receiving a bevel gear blank (K1) and having a tool spindle (13.1) for receiving a cutter head (13.2). The device comprises a machining arm (11) having a pivot axis (A1) which has the tool spindle (13.1) for receiving the cutter head (13.2) on a first side and has a tool spindle (14.1) for receiving an end-milling cutter (14.2) on a second side. A CNC controller (S) puts the end-milling cutter (14.2) into rapid rotation to cut a predefined number of tooth gaps on the bevel gear blank (K1). After the machining arm (11) is pivoted, the cutter head used as the bevel gear finishing tool (13.2) is used. It is put into slower rotation to machining the bevel gear blank (K1) using the bevel gear finishing tool (13.2) in a post-machining process.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: August 18, 2009
    Assignee: Klingelnberg GmbH
    Inventor: Rolf Langerfeld
  • Patent number: 5022802
    Abstract: The production of differential speed reduction apparatus, which uses a double-toothed gear including face cams having tooth profiles uniquely generated to secure efficient speed reduction. The speed reduction apparatus includes an input shaft carrying the double-toothed gear, a slant shaft wobbling in association with the rotation of the input shaft, a stationary face gear engageable with the face cams, a movable face gear secured to an output shaft, wherein the stationary face gear and the movable face gear have a roller-like or a convex-face contour.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: June 11, 1991
    Assignee: Kabushiki Kaisha Shinkoseisakusho
    Inventor: Takao Yokoi
  • Patent number: 4949456
    Abstract: An improved method is provided for finish machining forged and/or rough-cut teeth (8) of a ring gear (40) by which a rotary tool such as a rotary carbide milling tool (24) is rotated about a rotational axis "r" that projectionally intersects a bottom surface (12) of tooth (8) as it tracks along a predetermined tool path enabling the rotary tool to be in close proximity to sidewalls (14 and 14') of teeth (8) and thereby eliminating the practice of having to normalize the ring gear microstructure prior to machining teeth (8).
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: August 21, 1990
    Assignee: Eaton Corporation
    Inventors: Joseph A. Kovach, Dale B. McCartney