Tooth Testing (e.g., Gear, Rack) Patents (Class 33/501.7)
  • Patent number: 12055383
    Abstract: An optical measuring machine for measuring an object having a mainly longitudinal extension includes a holding assembly for the object, a sensing optical assembly movable parallel to a longitudinal axis of the object in order to allow complete acquisition of an image representing it, a contact probe connected to the optical assembly to move together with it along said longitudinal axis and movable with respect to the optical assembly orthogonally to the longitudinal axis, and sensor means configured to detect at least one angular position about the longitudinal axis of the holding assembly, an axial position along the longitudinal axis of the optical assembly and a radial position, orthogonal to the longitudinal axis, of the contact probe.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: August 6, 2024
    Assignee: VIVI & C. S.P.A.
    Inventors: Carlo Bedeschi, Stefano Andreini, Paolo Maioli, Manuel Bartolini, Lanfranco Ferri
  • Patent number: 9140232
    Abstract: A replacement motor mount for a pitch system of a wind turbine includes a bracket assembly configured for attachment to a first motor mount and a second supporting structure. The replacement motor mount is configured for mounting and securing a pitch motor having a geared drive end. The replacement motor mount is configured to displace the pitch motor from the first motor mount by a predetermined distance.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: September 22, 2015
    Assignee: General Electric Company
    Inventors: Jonathan Paul Signore, Kristina Anne Gerber
  • Publication number: 20150081083
    Abstract: A profile gauge that embodies a measurement geometry for a tool that has a toothed profile designed in particular for the skiving of toothed work pieces, wherein the profile gauge serves to determine at least one measurement quantity which can be used for a machining process, specifically a skiving process, that is to be performed with the tool and wherein, in a phase of said process, the toothed profile of the work piece that is to be generated is formed by a meshing engagement with the teeth of the tool, wherein the profile gauge is distinguished by having a toothed profile section with which, for determining the measurement quantity, the teeth of the tool are brought into a meshing engagement that corresponds to the tooth engagement between the tool and the work piece during the profile-forming phase. The invention further concerns a measuring device and a measurement method.
    Type: Application
    Filed: March 17, 2014
    Publication date: March 19, 2015
    Applicant: GLEASON-PFAUTER MASCHINENFABRIK GMBH
    Inventors: Juergen Kreschel, Edgar Weppelmann
  • Patent number: 8869414
    Abstract: A reference setting tool for measuring a shape of a side face spline is used to measure the shape of driven teeth that are formed on an axial end face of a vehicle hub unit and that are meshed with drive teeth of a constant velocity joint. The reference setting tool includes: reference teeth that are formed so as to be aligned along a circular ring and so as to have the same shape as the drive teeth of the constant velocity joint; and a reference surface that has a predetermined correlation with the reference teeth, and that is used to set a reference position for measuring the shape of the driven teeth with the reference teeth in mesh with the driven teeth.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: October 28, 2014
    Assignee: Jtekt Corporation
    Inventor: Masashi Koumoto
  • Publication number: 20130047451
    Abstract: A reference setting tool for measuring a shape of a side face spline is used to measure the shape of driven teeth that are formed on an axial end face of a vehicle hub unit and that are meshed with drive teeth of a constant velocity joint. The reference setting tool includes: reference teeth that are formed so as to be aligned along a circular ring and so as to have the same shape as the drive teeth of the constant velocity joint; and a reference surface that has a predetermined correlation with the reference teeth, and that is used to set a reference position for measuring the shape of the driven teeth with the reference teeth in mesh with the driven teeth.
    Type: Application
    Filed: July 31, 2012
    Publication date: February 28, 2013
    Applicant: JTEKT CORPORATION
    Inventor: Masashi KOUMOTO
  • Patent number: 7748131
    Abstract: The invention relates to a method of inspecting gears during their manufacture in the gear cutting machine, wherein the respective workpiece is traveled to by the tool at specific reference points to determine any deviations. The setting of the tool can be corrected by means of these deviations via a control loop.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: July 6, 2010
    Assignee: Liebherr-Verzahntechnik GmbH
    Inventors: Klaus Finkenwirth, Andreas Mehr
  • Patent number: 7730627
    Abstract: A method and device for measuring an amount of wear on a flank of a gear tooth is provided. The method includes positioning a template comprising a first template tooth adjacent a gear comprising a first gear tooth. The method also includes adjusting the position of the template in a rotational direction with respect to a known rotational reference point of the gear, adjusting the position of the template in an axial direction with respect to a known axial reference point of the gear, and adjusting the position of the template in a radial direction with respect to a known radial reference point of the gear. The method further includes measuring an extent of a gap between an edge of the first template tooth and an adjacent flank of the first gear tooth, wherein the gap corresponds to the amount of wear on the flank.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: June 8, 2010
    Assignee: General Electric Company
    Inventors: Aaron John Mashue, Ryan Spencer Close
  • Publication number: 20100083516
    Abstract: A method and device for measuring an amount of wear on a flank of a gear tooth is provided. The method includes positioning a template comprising a first template tooth adjacent a gear comprising a first gear tooth. The method also includes adjusting the position of the template in a rotational direction with respect to a known rotational reference point of the gear, adjusting the position of the template in an axial direction with respect to a known axial reference point of the gear, and adjusting the position of the template in a radial direction with respect to a known radial reference point of the gear. The method further includes measuring an extent of a gap between an edge of the first template tooth and an adjacent flank of the first gear tooth, wherein the gap corresponds to the amount of wear on the flank.
    Type: Application
    Filed: October 8, 2008
    Publication date: April 8, 2010
    Inventors: Aaron John Mashue, Ryan Spencer Close
  • Patent number: 7401415
    Abstract: A measurement tool for determining a position of a pinion gear in a differential assembly includes a mounting member configured to contact an end face of the pinion gear and an elongated arm member extending outwardly from the mounting member. The arm member has an arm portion configured to overlie one of the bearing seats of the differential assembly and an aperture formed in the arm member configured to receive a measurement gage therethrough. The measurement gage is used to measure a distance between a surface of the bearing seat and a reference surface of the arm member from which the position or “pinion depth” of pinion gear can be determined.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: July 22, 2008
    Assignee: RATECH
    Inventor: John V. Musuraca
  • Patent number: 7020972
    Abstract: The invention concerns a process for the aligning of the tooth spaces of workpieces (1) with precut teeth, which are set up for fine machining on the work spindle (2) of a gear finishing machine. In order to avoid the trend related occurrence of out-of-tolerance aligning errors as series production progresses, teach-in cycles are performed on the workpiece machined in the immediately preceding machining cycle, called for automatically after time intervals or machining cycle intervals which are either pre-defined or calculated by the machine control system. By this means any prevailing trend errors are restored to zero.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: April 4, 2006
    Assignee: Reishauer AG
    Inventors: Jürg Graf, René Ohm
  • Patent number: 6874241
    Abstract: Measuring means for determining measurement error factors of a measuring machine, which measures toothing tolerances of gearwheels by inserting two gauging balls in different tooth gaps of a gearwheel and then taking measurements from the positions of the inserted balls, comprises a reference master having two first helically extending grooves disposed on an external or internal circumference of the master and representing tooth gaps receiving the two gauging balls to permit simulated measurements applicable to an externally or internally helically toothed gearwheel with an even number of teeth and two second helically extending grooves disposed on the same circumference as the first grooves and representing tooth gaps for respectively receiving the two balls to permit simulated measurements applicable to an externally or internally helically toothed gearwheel with an uneven number of teeth.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: April 5, 2005
    Assignee: Frenco GmbH
    Inventor: Rudolf Och
  • Patent number: 6705022
    Abstract: A method and apparatus for determining a pinion bearing move to correct pinion-to-gear alignment based on pinion &Dgr; t overcoming the aforementioned drawbacks are provided. Using a realistic visual representation of a gear to pinion mesh showing pressure angles of the gear and pinion as well as the angle of the pinion down from the mill center line allows for a quick and accurate determination of a pinion bearing to align a pinion-to-gear assembly move. Using temperature differential data of the pinion under load conditions, the present invention allows for an easy and efficient means of determining a pinion bearing move to align a pinion-to-gear assembly without requiring complicated manual calculations or data input to a computer program. Furthermore, the present invention is lightweight and portable thereby avoiding the drawbacks often associated with handheld electrical devices and laptop computers.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: March 16, 2004
    Assignee: Metso Minerals Industries, Inc.
    Inventor: Edward M. Stopper
  • Patent number: 6612042
    Abstract: An inspection device for inspecting production of threaded members wherein the threaded members are inspected to ensure that when the threaded member is matched with a corresponding threaded hole in an automotive drive system, the threaded member will mate properly to serve its intended purpose. The apparatus of the invention is formed as a three-piece gage assembly that checks for lead errors and length errors set forth in the threaded member. The combination gage includes a substantially cylindrical gage spacer, a threaded ring gage, and a flush gage pin, which is associated with the threaded ring gage, having a low end mark and a high end mark thereon. The markings indicate proper/improper axial length of the threaded portion. The preferred embodiment is used to evaluate a drive pinion shaft of an automotive axle assembly.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: September 2, 2003
    Assignee: Torque-Traction Technologies, Inc.
    Inventors: Trevor O'Bryan McKinney, Roderick Brent Dillon, Russell R. Bow
  • Patent number: 6598305
    Abstract: An inspection device for inspecting production of splined members wherein the splined members are inspected to ensure that when the splined member is matched with a corresponding splined hole in an automotive drive system, the splined member will mate properly to serve its intended purpose. The apparatus of the invention is formed as a three-piece gage assembly that checks for lead errors and length errors set forth in the splined member. The combination gage includes a substantially cylindrical gage spacer, a splined ring gage, and a flush gage pin, which is associated with the splined ring gage, having a low end mark and a high end mark thereon. The markings indicate proper/improper axial length of the splined portion. The preferred embodiment is used to evaluate a drive pinion shaft of an automotive axle assembly.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: July 29, 2003
    Assignee: Torque-Traction Technologies, Inc.
    Inventors: Trevor O'Bryan McKinney, Roderick Brent Dillon, Russell R. Bow
  • Publication number: 20020129506
    Abstract: A device and method for gear checking measurement of a gear employs a pair of measuring pins or balls of predetermined outer diameter which are placed in tooth spaces on diametrically opposite sides. The measuring pins or balls are held in the tooth spaces by a holding element which is fixedly connecting to and spaced from each measuring pin or ball in a direction along the gear axis so that an accurate measurement can be taken of the overall external diameter over the measuring pins. In one version, the holding element is a separate magnet or pair of magnets coupled to a respective measuring pin or ball. In another version, a holder frame holds a pair of measuring pins or balls at circumferential positions with a pre-counting spacing of gear teeth on diametrically opposite sides of the gear.
    Type: Application
    Filed: April 25, 2001
    Publication date: September 19, 2002
    Inventor: Sil Han
  • Patent number: 6381861
    Abstract: The present invention relates to a system for measuring a part, and an apparatus for measuring which is a dimensional gage for measuring inside and outside surfaces of an object, that comprises (1) a gage base; (2) at least three removable spindles attached to the gage base; (3) a moveable roll assembly attached to the gage base further comprising at least one guide rod, at least one spindle guide block, at least one linear bearing, at last one spring, and at least one guide rail block; (4) a plurality of measuring means attached to each of said removable spindles and spaced equidistantly around a central axis with each of the measuring means being spaced equidistantly from the other measuring means around the central axis, and wherein at least one of the measuring means is removable attached to the moveable roll assembly; (5) a lever for adjusting the movable roll assembly to engage the measuring means removably attached to the moveable roll assembly with a test part; (6) a housing attached to the gage base;
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: May 7, 2002
    Inventor: Gary W. Deterling