Gear Chamfering Or Deburring Patents (Class 409/8)
  • Patent number: 10857608
    Abstract: The present disclosure relates to an apparatus for chamfering at least one edge of the gearing at the front side of a workpiece having internal gearing comprising at least one rotatably supported workpiece holder for holding the workpiece and comprising at least one rotatably supported tool holder for holding at least one chamfer hob, possibly a chamfer cut hob, wherein the tool holder is arranged and/or arrangeable next to a workpiece held in the workpiece holder and a chamfer hob held in the tool holder is arrangeable by means of a tool arbor in the region of the center opening of the workpiece formed by the internal gearing to be brought into engagement with an edge of the internal gearing on the upper side and/or on the lower side of the workpiece.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: December 8, 2020
    Assignee: LIEBHERR-VERZAHNTECHNIK GMBH
    Inventor: Johannes Weixler
  • Patent number: 10548696
    Abstract: A method of manufacturing an article, comprising taking an article formed in an initial state via an additive manufacturing process and performing a second manufacturing process to transform the article into a second state, which comprises mounting the article in a holding device, processing at least one first feature on the article, which comprises processing at least one set of mounting features on the article, re-mounting the article via the at least one set of mounting features, and then processing at least one second feature on the article.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: February 4, 2020
    Assignee: RENISHAW PLC
    Inventors: David Beeby, Mark Forman
  • Patent number: 10245664
    Abstract: Bevel gear cutting machines having multiple numerically-controllable axes, a workpiece spindle, which accommodates a bevel gear coaxially in relation to a workpiece spindle axis, and a deburring device having a deburring spindle for accommodating at least one first deburring tool. The bevel gear cutting machines may chamfer tooth edges of the bevel gear in two passes, where, in a first pass, first chamfers are provided on the tooth edges by using the first deburring tool, and, in a second pass, second chamfers are provided in the region of the first chamfers by using the first deburring tool or by using a second deburring tool in a continuous procedure, in which the bevel gear and the first or second deburring tool rotate in a coupled manner while engaged with one another.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: April 2, 2019
    Assignee: KLINGELNBERG AG
    Inventors: Ji Kyung Yoon, Jürgen Weber, Karl-Martin Ribbeck
  • Patent number: 9643255
    Abstract: Disclosed herein is a flexible single piece active element for use in connection with aspirating electrosurgical ablators, particularly those configured for bulk tissue vaporization. The active electrode elements of the present invention provide a simple construction suitable for use with a wide array of electrosurgical components and adjustable to wide range of angled positions to permit access to a variety of tissues, in an array of diverse environments and address a host of ablation needs. Additionally, the novel geometry and positioning of both ablation surface and aspiration ports permit aspiration flow to remove primarily waste heat rather than process heat, to thereby improve vaporization efficiency and reduce procedure time. Thus, active electrodes and ablation devices of the present invention maximize efficiency and adaptability while minimizing manufacturing cost and device profile.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: May 9, 2017
    Assignee: ElectroMedical Associates, LLC
    Inventor: Robert A. Van Wyk
  • Patent number: 9346112
    Abstract: In a method for producing toothed sections on workpieces, a toothed section is firstly produced by means of a first tool in the region of a first end face of a workpiece to be toothed. The produced toothed section is reworked on the peripheral face by means of at least one second tool in the region of the first end face, while the toothed section is further produced. If the toothed section is also produced in the region of the second end face by means of the first tool, the reworking in the region of the first end face is already completed, so the toothed section can also be reworked in the region of the second end face. Short cycle times are thereby achieved with a low machine-related outlay.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: May 24, 2016
    Assignee: MAG IAS GmbH
    Inventors: Holger Fleischer, Mario Wiesel
  • Patent number: 9289839
    Abstract: Method and apparatus wherein the front machining of a gear blank (40) are carried out on a CNC bevel gear generating machine (44) utilizing the motions available in such machines with minimal modifications to the existing machine tool.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: March 22, 2016
    Assignee: THE GLEASON WORKS
    Inventors: Hermann J. Stadtfeld, Mark J. Boch, William G. Landry, Andrew S. Price, Joseph A. Courtney, Markus J. Bolze
  • Patent number: 8961081
    Abstract: Gear processing machine (4), such as a gear cutting or grinding machine, wherein a chamfering and/or deburring apparatus (2) and auxiliary spindle (10) are included on the same machine. A transfer mechanism (8) loads, unloads and transfers workpieces between a machining spindle (6) and the auxiliary spindle (10) thereby enabling simultaneous cutting and chamfering and/or deburring processes to be carried out. Via the auxiliary spindle, completed workpieces may be removed from the machine and blank workpieces may be loaded into the machine while another gear is being processed on the machine spindle thereby enhancing machine output and creating a more efficient operation.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: February 24, 2015
    Assignee: The Gleason Works
    Inventors: Craig R. Ronald, Alan S. Metelsky
  • Patent number: 8950986
    Abstract: A method of producing internal gear teeth with deflecting surfaces such that the internal gear teeth are arranged in a component having an end and a longitudinal axis, as well as an end face that is offset relative to the end of the component in the direction of the longitudinal axis. The method comprises the steps of machining the end face of the internal teeth using a conical tool that rotates about a tool axis arranged parallel to the longitudinal axis, the rotating tool first being introduced axially and then moved along a circular path coaxial to the longitudinal axis, and finally being withdrawn parallel to the axis.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: February 10, 2015
    Assignee: ZF Friedrichshafen AG
    Inventor: Kim Fuhrer
  • Publication number: 20140294530
    Abstract: An apparatus for chamfering a toothed workpiece with at least one rotatably mounted workpiece spindle and with at least one machining unit with at least one machining head for chamfering a workpiece clamped in a spindle, wherein the machining unit with at least one machining head exclusively comprises chamfer cutters which permit machining of the workpiece on two different sides of the workpiece, in particular Chamfer Cut units, and that the machining unit with at least one machining head comprises a device for loading chamfer cutters and/or for centering chamfer cutters relative to the position of the toothing on the workpiece.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 2, 2014
    Inventors: Hansjoerg Geiser, Oliver Winkel, Andreas Heidemann
  • Patent number: 8807890
    Abstract: A ring gear or pinion common outside chamfer tool and a common inside chamfer tool are disclosed. The common chamfer tools comprise a shank, a tip end and a chamfering edge. The shank is attachable to a gear cutter and has a tip end formed on the distal end thereof. The chamfering edge is positioned within the tip end and is configured to form a tooth top-land radius of multiple gear ratios. A method of designing a ring gear or pinion common outside chamfer tool and common inside chamfer tool for multiple gear ratios is also described.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 19, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Chunliang Hsiao, Stefano Lombardo, Paul J. Bojanowski
  • Patent number: 8769820
    Abstract: A method and a device for machining the tooth edges (23, 25) developed between each end face (22, 24) and the tooth flanks (26, 27) of end-cut work wheels (2). The axis of rotation (20) of the spindle that carries the machining tool (21) is displaced around an orthogonal swivel axis (16) relative to the tool axis of rotation so that the cutting directions are opposite to each other with respect to the work wheel (2) in the machining of the lower tooth edges (23) and the upper tooth edges (25).
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: July 8, 2014
    Assignee: Gleason-Pfauter Maschinenfabrik GmbH
    Inventors: Matthias Philippin, Juergen Pastow
  • Patent number: 8732937
    Abstract: A method and apparatus for cutting teeth in workpieces, wherein, in a roughing operation, a substantially uncut blank receives rough teeth using a cutting tool having cutting teeth. Operation teeth are produced, the tooth width of which is defined by the spacing between the flanks of the teeth and is greater than the target dimension. In a subsequent deburring operation, a chamfer is incorporated into the end face edge of the tooth flanks, accompanied by the removal of an end face burr. Lastly, in a smoothing operation, the tooth width of the teeth is brought to the target dimension by machining the tooth flanks.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: May 27, 2014
    Assignee: Profilator GmbH & Co. KG
    Inventors: Erich Prock, Marcel Sobczyk
  • Patent number: 8684637
    Abstract: An arrangement for the non-rotational connection between a toothed tool wheel for the machining of end peripheral areas of tooth flanks, having an axis of rotation, and a tool holding fixture that can be rotationally driven around an axis of rotation. Said arrangement has an elastic means with a restoring force against which the direction of the axis of rotation of the tool wheel can be displaced relative to the direction of the axis of rotation of the tool holding fixture.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: April 1, 2014
    Assignee: The Gleason Works
    Inventors: Karl Schaeferling, Gerhard Reichert
  • Patent number: 8596939
    Abstract: A method for cutting teeth in workpieces, wherein, in a roughing operation, a substantially uncut blank receives rough teeth using a cutting tool having cutting teeth. Operation teeth are produced, the tooth width of which is defined by the spacing between the flanks of the teeth and is greater than the target dimension. In a subsequent deburring operation, a chamfer is incorporated into the end face edge of the tooth flanks, accompanied by the removal of an end face burr. Lastly, in a smoothing operation, the tooth width of the teeth is brought to the target dimension by machining the tooth flanks.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: December 3, 2013
    Assignee: Profilator GmbH & Co. KG
    Inventors: Erich Prock, Marcel Sobczyk
  • Publication number: 20130243539
    Abstract: A chamfering method comprising defining a tooth edge utilizing theoretical data, defining an actual tooth edge utilizing the theoretical tooth edge data, defining a motion path of a chamfering tool and chamfering the actual tooth edge by moving the chamfering tool and the actual tooth edge relative to one another according to the motion path to chamfer the actual tooth edge.
    Type: Application
    Filed: September 10, 2012
    Publication date: September 19, 2013
    Applicant: THE GLEASON WORKS
    Inventor: Markus Augsburg
  • Patent number: 8523499
    Abstract: The present invention aims to provide a working device for deburring or chamfering easily, for example on the both sides of a gear, and for desired deburring or chamfering effectively on a large-sized gear, and comprises a base stage, a workpiece hold and rotate device mounted thereon for holding and rotating a workpiece, a working device mounted on the base stage and movable to and from the workpiece and having a working tool for working against obverse and reverse sides of the workpiece, a pressing device for pressing the working device toward the workpiece, and a tracing device on the working means, composed of a workpiece obverse side tracing member corresponding to the obverse side of workpiece, and a workpiece reverse side tracing member corresponding to the reverse side of workpiece, for moving the working device in forward and rearward directions by becoming in contact with and tracing shape of the workpiece.
    Type: Grant
    Filed: September 1, 2008
    Date of Patent: September 3, 2013
    Assignee: Senjo Seiki Co., Ltd.
    Inventors: Takeshi Senjo, Masaharu Nakajima
  • Publication number: 20130121779
    Abstract: The present disclosure relates to a method for machining tooth edges of a toothed workpiece, in which a tool clamped on a tool spindle is used for machining a tooth edge of the workpiece, wherein the machining of the tooth edge is effected by a rolling movement of the tool and the workpiece, wherein advancing the tool to the tooth edge is effected via the movement of a carrier arm on which the tool spindle is arranged and which has at least two axes of rotation.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 16, 2013
    Applicant: LIEBHERR-VERZAHNTECHNIK GMBH
    Inventor: Liebherr-Verzahntechnik GmbH
  • Publication number: 20130022424
    Abstract: A ring gear or pinion common outside chamfer tool and a common inside chamfer tool are disclosed. The common chamfer tools comprise a shank, a tip end and a chamfering edge. The shank is attachable to a gear cutter and has a tip end formed on the distal end thereof. The chamfering edge is positioned within the tip end and is configured to form a tooth top-land radius of multiple gear ratios. A method of designing a ring gear or pinion common outside chamfer tool and common inside chamfer tool for multiple gear ratios is also described.
    Type: Application
    Filed: September 28, 2012
    Publication date: January 24, 2013
    Inventors: Chunliang Hsiao, Stefano Lombardo, Paul J. Bonjanowski
  • Publication number: 20120251258
    Abstract: Position adjustments of a chamfering cutter and a deburring cutter in a chamfering device with respect to a workpiece can be easily carried out. The chamfering device has a chamfering cutter, a deburring cutter which has a diameter different from that of the chamfering cutter; a cutter swing block, a cutter longitudinal feed block, and a base block, which rotatably support the chamfering cutter and the deburring cutter and are capable of subjecting the chamfering cutter and the deburring cuter to position adjustment with respect to the workpiece. The longitudinal feed block can perform single-axis feeding with respect to the workpiece. The chamfering cutter and the deburring cutter are disposed so that the cutting change amount of the chamfering cutter and that of the deburring cutter will be approximately equal to each other throughout the diameter range of the workpiece to be processed.
    Type: Application
    Filed: October 6, 2010
    Publication date: October 4, 2012
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Koichi Masuo, Takahide Tokawa
  • Publication number: 20120183368
    Abstract: A method of producing internal gear teeth with deflecting surfaces such that the internal gear teeth are arranged in a component having an end and a longitudinal axis, as well as an end face that is offset relative to the end of the component in the direction of the longitudinal axis. The method comprises the steps of machining the end face of the internal teeth using a conical tool that rotates about a tool axis arranged parallel to the longitudinal axis, the rotating tool first being introduced axially and then moved along a circular path coaxial to the longitudinal axis, and finally being withdrawn parallel to the axis.
    Type: Application
    Filed: September 1, 2010
    Publication date: July 19, 2012
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventor: Kim Fuhrer
  • Publication number: 20120155980
    Abstract: Gear processing machine (4), such as a gear cutting or grinding machine, wherein a chamfering and/or deburring apparatus (2) and auxiliary spindle (10) are included on the same machine. A transfer mechanism (8) loads, unloads and transfers workpieces between a machining spindle (6) and the auxiliary spindle (10) thereby enabling simultaneous cutting and chamfering and/or deburring processes to be carried out. Via the auxiliary spindle, completed workpieces may be removed from the machine and blank workpieces may be loaded into the machine while another gear is being processed on the machine spindle thereby enhancing machine output and creating a more efficient operation.
    Type: Application
    Filed: September 24, 2010
    Publication date: June 21, 2012
    Applicant: THE GLEASON WORKS
    Inventors: Craig R. Ronald, Alan S. Metelsky
  • Patent number: 8186032
    Abstract: Tool arrangement for the production of helical teeth in gear wheels, wherein a roughing hob (20), at least one deburring cutter (16, 18) and a finishing hob (12) can be fastened on a common mandrel (14) in a predetermined rotational position relative to one another, and the teeth of the finishing hob, which are situated along a helical line, each have a different cross section such that the engagement angle of the right or left flanks decreases continuously starting from a maximum value of the first tooth up to the last tooth, and the maximum engagement angle of the right flanks of the first or last tooth coincides with the minimum engagement angle of the left flanks, and vice versa.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: May 29, 2012
    Assignees: Liebherr-Verzahntechnik GmbH, Fette GmbH
    Inventors: Wolfgang Carmincke, Oliver Winkel
  • Patent number: 8118522
    Abstract: A working apparatus, provided with a base stage, work hold and rotation device for holding and rotating a work, working device movable toward and away from the work via slider mechanism and having a working tool, press structure for pressing the working tool toward the work via the working device, and trace device pressed toward the work together with the working tool by the press structure and in contact with the work and moving the working device as a whole in forward and rearward directions according to outer shape of the work. By pressing of the pressing structure, the working tool deburrs and chamfers under control of working volume by the trace device. The work hold and rotation device has work rotation axis angle adjustment mechanism, for adjusting angle of rotation axis of the work by holding the work. The working apparatus can precisely deburr and chamfer complicated shape of work such as worm gear.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: February 21, 2012
    Assignee: Senjo Seiki Co., Ltd.
    Inventor: Masaharu Nakajima
  • Publication number: 20110229282
    Abstract: A machining section of a gear machining apparatus includes a workpiece support in the form of a shaft that pivotally supports the workpiece gear and a cutter support in the form of a shaft that supports the chamfering cutter so that the chamfering cutter meshes with the workpiece gear attached to the shaft. The shaft is angled so that the chamfering cutter meshes with the workpiece gear at an axis-crossing angle to being zero degree and machining teeth of the chamfering cutter do not interfere with a tooth face the workpiece gear. A gear machining method is also provided.
    Type: Application
    Filed: July 30, 2008
    Publication date: September 22, 2011
    Applicants: HONDA MOTOR CO., LTD., SANYOMACHINE CO., LTD.
    Inventors: Katsuyoshi Ohno, Tatsuo Yokoi, Nobuaki Ogawa, Kenji Narahashi, Shimpei Nakada
  • Patent number: 8006359
    Abstract: A machine tool for processing tooth formations of workpieces, includes a rotary holder which can be rotated about a main axis A, two workpiece spindles which are arranged on the rotary holder, with the workpiece spindles having spindle axes (Sa, Sb) which are orientated parallel with the main axis A, in particular with the workpiece spindles being arranged symmetrically about the main axis A, and a tool holder for a tool for processing a workpiece on one of the workpiece spindles, is characterized in that the main axis A of the rotary holder extends horizontally. With this machine tool, contamination of the rotary holder and tool spindles by removed chips can be reduced and the structural complexity for a relative feed movement of the tool with respect to the workpiece parallel with the spindle axes can be reduced.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: August 30, 2011
    Assignee: Felsomat GmbH & Co. KG
    Inventor: Helmut Jaeger
  • Publication number: 20110116885
    Abstract: A ring gear or pinion common outside chamfer tool and a common inside chamfer tool are disclosed. The common chamfer tools comprise a shank, a tip end and a chamfering edge. The shank is attachable to a gear cutter and has a tip end formed on the distal end thereof. The chamfering edge is positioned within the tip end and is configured to form a tooth top-land radius of multiple gear ratios. A method of designing a ring gear or pinion common outside chamfer tool and common inside chamfer tool for multiple gear ratios is also described.
    Type: Application
    Filed: November 13, 2009
    Publication date: May 19, 2011
    Inventors: Chunliang Hsiao, Stefano Lombardo, Paul J. Bojanowski
  • Patent number: 7937182
    Abstract: By coordinating the amount and course of the crowning of the tool and the diagonal ratio, a twist is created with a simple tool, and superimposed on the natural twist, thus resulting in the twist required for the work piece. Furthermore, an additional portion of the crowning is superimposed on the portion of the crowning of the work piece which is the result of the crowning of the tool during the machining in the diagonal method, thus resulting in the required crowning of the work piece, with the additional portion of the crowning being generated by changing the spacing between tool and work piece during the machining.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: May 3, 2011
    Assignee: Gleason-Pfauter Maschinenfabrik GmbH
    Inventor: Ingo Faulstich
  • Patent number: 7899572
    Abstract: The machining of drills (1) includes an operation for chamfering the cutting edges (8) performed in two steps. In the first step the rotating grindstone (15) is directed to various locations of the cutting edge (8) and the point of contact is detected by an electronic appliance (17) whereof the electronic module (19) controls the stoppage of the grindstone, its return to the starting position and the recording of the position of the grindstone at the time of contact. In the second step the grindstone (15) is controlled to follow the left line obtained by connecting the points registered during the first step.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: March 1, 2011
    Assignee: Rollomatic SA
    Inventor: Patrick Fritschy
  • Publication number: 20110044777
    Abstract: The present invention aims to provide a working device for deburring or chamfering easily, for example on the both sides of a gear, and for desired deburring or chamfering effectively on a large-sized gear, and comprises a base stage, a workpiece hold and rotate means mounted thereon for holding and rotating a workpiece, a working means mounted on the base stage and movable to and from the workpiece and having a working tool for working against obverse and reverse sides of the workpiece, a pressing means for pressing the working means toward the workpiece, and a tracing means on the working means, composed of a workpiece obverse side tracing member corresponding to the obverse side of workpiece, and a workpiece reverse side tracing member corresponding to the reverse side of workpiece, for moving the working means in forward and rearward directions by becoming in contact with and tracing shape of the workpiece.
    Type: Application
    Filed: September 1, 2008
    Publication date: February 24, 2011
    Inventors: Takeshi Senjo, Masaharu Nakajima
  • Publication number: 20100278605
    Abstract: A method and a device for machining the tooth edges (23, 25) developed between each end face (22, 24) and the tooth flanks (26, 27) of end-cut work wheels (2). The axis of rotation (20) of the spindle that carries the machining tool (21) is displaced around an orthogonal swivel axis (16) relative to the tool axis of rotation so that the cutting directions are opposite to each other with respect to the work wheel (2) in the machining of the lower tooth edges (23) and the upper tooth edges (25).
    Type: Application
    Filed: April 8, 2010
    Publication date: November 4, 2010
    Applicant: GLEASON-PFAUTER MASCHINENFABRIK GMBH
    Inventors: Matthias Philippin, Juergen Pastow
  • Publication number: 20100272535
    Abstract: An arrangement for the non-rotational connection between a toothed tool wheel for the machining of end peripheral areas of tooth flanks, having an axis of rotation, and a tool holding fixture that can be rotationally driven around an axis of rotation. Said arrangement has an elastic means with a restoring force against which the direction of the axis of rotation of the tool wheel can be displaced relative to the direction of the axis of rotation of the tool holding fixture.
    Type: Application
    Filed: April 13, 2010
    Publication date: October 28, 2010
    Applicant: THE GLEASON WORKS
    Inventors: Karl Schaeferling, Gerhard Reichert
  • Patent number: 7794186
    Abstract: A gear cutting machine wherein a chamfer/deburr device and tool are fastened to a fixed component of the gear cutting machine. In this way, it is possible to adjust the chamfering/deburring tool into the working position in a simple and dependable manner to remove the edges from a gear. The device preferably has a linear track as well as a pivot axis, which can position the tool into the optimum position for the chamfering and/or deburring of the gear.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: September 14, 2010
    Assignee: The Gleason Works
    Inventors: Klaus Peiffer, Matthias Philippin
  • Patent number: 7624505
    Abstract: The invention relates to a method for tooth-machining of workpieces (3), especially gear wheels, comprising milling, deburring by hobbing and integrated secondary deburring. The method proceeds on a machine tool (1) having two workpiece spindles (11, 12) which may exchange places. A workpiece (3) is mounted on a first workpiece spindle (11), followed by the workpiece spindles (11, 12) exchanging places, followed by pre-milling and, where applicable, cutting (=deburring by shaving) of the workpiece (3), followed by a further exchange of places, followed by chamfering and cutting of the workpiece (3), followed by a further exchange of places, followed by a finish-milling of the workpiece (3), followed by a further exchange of places, followed by a workpiece change. At the same time, the same procedure takes place on the second workpiece spindle (12), staggered in time by an exchange of places of the workpiece spindles (11, 12).
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: December 1, 2009
    Assignee: Felsomat GmbH & Co. KG
    Inventors: Helmut F. Jaeger, Juergen Peschina
  • Patent number: 7507057
    Abstract: The invention pertains to a deburring tool for deburring the interior and/or exterior of work pieces, for example, abutting edges on intersecting bores or on longitudinal and transverse grooves in bores or on transverse bores in a deep-hole bore with different diameters of an engine block, tubular work piece ends, edges on and in flat work piece surfaces or surfaces of a toothed wheel or a sprocket wheel. The deburring tool can be used in machine tools and is pressure-controlled. The cutting forces can be variably adapted to the burr dimensions that change during the machining process and to different materials. Corresponding embodiments of the deburring tool ensure the deburring of different work pieces with a good quality and in a short period of time. The inventive deburring tool is particularly advantageous in that it can be used in intermittent assembly lines with the latest manufacturing technologies.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: March 24, 2009
    Assignee: Beier Entgrattechnik Spezial-Entgrat Werkzeuge
    Inventor: Hans-Michael Beier
  • Publication number: 20080292420
    Abstract: By coordinating the amount and course of the crowning of the tool and the diagonal ratio, a twist is created with a simple tool, and superimposed on the natural twist, thus resulting in the twist required for the work piece. Furthermore, an additional portion of the crowning is superimposed on the portion of the crowning of the work piece which is the result of the crowning of the tool during the machining in the diagonal method, thus resulting in the required crowning of the work piece, with said additional portion of the crowning being generated by changing the spacing between tool and work piece during the machining.
    Type: Application
    Filed: May 22, 2008
    Publication date: November 27, 2008
    Inventor: Ingo Faulstich
  • Patent number: 7431544
    Abstract: Bevel gear cutting machine for chamfering and/or deburring edges on the teeth of a bevel gear. The gear-cutting machine comprises a workpiece spindle, which receives the bevel gear coaxially of a spindle axis. Furthermore, a deburring spindle is provided for the receiving of a deburring tool and several numerically controllable axes are given. A deburring blade head with several blade cutter-like blade inserts serves as deburring tool, whereby the blade inserts are insertable in recesses of the deburring blade head essentially radially oriented to a deburring spindle axis (E) and comprise edges for chamfering and/or deburring.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: October 7, 2008
    Assignee: Klingelnberg GmbH
    Inventor: Karl-Martin Ribbeck
  • Patent number: 7422397
    Abstract: A bevel gear cutting machine, which is designed for, among other things, chamfering and/or deburring edges on the teeth of a bevel gear. The gear cutting machine has a workpiece spindle which receives the bevel gear coaxially. A carriage is provided, which receives a plate-shaped cutter head having multiple bar blades. The gear cutting machine has multiple numerically controllable axes, which are activatable via a programmable controller, one of the axes forming a workpiece spindle axis of the workpiece spindle. Another axis is used as the tool spindle axis of the plate-shaped cutter head.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: September 9, 2008
    Assignee: Klingelnberg GmbH
    Inventors: Harmuth Müller, Karl-Martin Ribbeck
  • Patent number: 7310863
    Abstract: The present invention provides a hobbing machine. The hobbing machine includes a clamp fixture adapted to retain a gear blank. A motor is operatively connected to the clamp fixture and is configured to rotate the clamp fixture and the gear blank together at a predetermined speed. A rotatable cutter is translatable into engagement with the gear blank and is configured to cut the gear blank and thereby produce a plurality of gear teeth. A de-burring tool is translatable into engagement with the gear blank and is configured to remove burrs from the gear blank as the gear teeth are being cut. A motorized spindle is operatively connected to the de-burring tool, and is configured to power and rotate the de-burring tool at a predefined speed to optimize the removal of the burrs.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: December 25, 2007
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Jeffrey R. Lee, Frank H. Kays, Travis M. Thompson, Stephen D. Doubler
  • Publication number: 20070186398
    Abstract: The present invention provides a hobbing machine. The hobbing machine includes a clamp fixture adapted to retain a gear blank. A motor is operatively connected to the clamp fixture and is configured to rotate the clamp fixture and the gear blank together at a predetermined speed. A rotatable cutter is translatable into engagement with the gear blank and is configured to cut the gear blank and thereby produce a plurality of gear teeth. A de-burring tool is translatable into engagement with the gear blank and is configured to remove burrs from the gear blank as the gear teeth are being cut. A motorized spindle is operatively connected to the de-burring tool, and is configured to power and rotate the de-burring tool at a predefined speed to optimize the removal of the burrs.
    Type: Application
    Filed: January 4, 2007
    Publication date: August 16, 2007
    Applicant: GM Global Technology Operations, Inc.
    Inventors: Jeffrey R. Lee, Frank H. Kays, Travis M. Thompson, Stephen D. Doubler
  • Patent number: 7103973
    Abstract: A method for the manufacture of a toothed gear from a gear blank wherein the gear blank loaded into a machine tool and rotationally driven is machined by a hobbing cutter disposed on a rotationally driven tool shaft and the rough-hobbed gear, once produced, is subsequently cleared of burr by means of a rotationally driven deburring tool by causing it to chamfer the front-end edges of the inter-teeth grooves, wherein the number of revolutions of said deburring tool and rough-machined gear has a constant ratio, wherein the removal of burr is performed on said rough-machined gear invariably loaded on said machine tool in a continuous pass by using a deburring tool which is similar to a side milling cutter, has cutting teeth, and is fixedly disposed for rotation on the shaft of said hobbing cutter, wherein the front-end edges of the inter-teeth grooves are successively machined in the way of a gear hobbing process, and wherein said shaft is changed from the gear hobbing setting over to a burr removal setting.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: September 12, 2006
    Assignee: Fette GmbH
    Inventors: Alfred Wolff, Siegfried Thiesies, Wolfgang Carmincke
  • Patent number: 6840720
    Abstract: A machine for deburring and fine machining of the tooth flanks of toothed workpieces with a gear-shaped fine machining tool, preferably, a shaving wheel, which is in rolling engagement with a workpiece, comprising a tool spindle, a motor for driving the tool spindle, a workpiece spindle with a clamping device for the workpiece, a motor for driving the workpiece spindle, a sensor correlated with the workpiece spindle for determining the angular position of the teeth of the workpiece relative to the axis of the workpiece and an electronic gear coupling the drive motors of the tool spindle and of the workpiece spindle which, as a function of the signal of the sensor, rotates the fine machining tool and the workpiece such relative to one another that tooth and gap are aligned.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: January 11, 2005
    Assignee: The Gleason Works
    Inventor: Johann Mall
  • Publication number: 20040179915
    Abstract: A dynamical instrument for machining comprising a sensor responsive to a non-rotating part of a machine proximate the tool of the machine for outputting a vibration signal, and a processor responsive to the sensor output configured to calculate a plurality of signature quantities which characterize the dynamics of the vibration signal and correlate the signature quantities to detect parameters associated with the operation of the machine.
    Type: Application
    Filed: March 10, 2003
    Publication date: September 16, 2004
    Inventors: Wayne S. Hill, Bruce N. Barck
  • Patent number: 6676337
    Abstract: A tool for chamfering and deburring of end face tooth edges of spur and helical gears comprising (1) at least one rolling deburring wheel for machining the tooth edges, arranged at an end face relative to the workpiece and meshing therewith, and (2) a toothed spacer wheel, positioned axially adjacent to the rolling deburring wheel and fixedly connected thereto and meshing with the workpiece. The spacer wheel being formed as a driving wheel about a portion of its periphery and as a smoothing wheel for machining the edge zones of the tooth flanks about the remaining portion of the periphery. The spacer wheel is divided into at least two discs which are connected to one another so as to be rotationally adjustable.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: January 13, 2004
    Assignee: The Gleason Works
    Inventor: Thomas Daniek
  • Patent number: 6571475
    Abstract: A method of chamfering and deburring the teeth of a gear having first teeth, each of the first teeth having a first and a second side and respective end faces; the method providing for meshing the gear with at least one tool having a ring gear meshing with the first teeth at edges formed between the first and second sides and the end faces; exerting compression between the first teeth of the gear and the ring gear; effecting a first permanent deformation of the edges to form first chamfer faces; and effecting at least a second permanent deformation between the first and second sides and the respective end faces; the first and the second permanent deformation being effected by means of enbloc tools having a first number of teeth and a second number of teeth.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: June 3, 2003
    Assignee: Samputensili S.p.A.
    Inventor: Umberto Tomei
  • Patent number: 6050755
    Abstract: Apparatus for chamfering and deburring the tooth end edges of straight and skew-teeth gears, comprising at least one deburring wheel arranged endways with respect to the work and meshing with it in finishing the tooth edges, comprising a toothed guide gear arranged axially beside the deburring wheel, joined to it nonrotatably and meshing with the work, comprising at least one secondary burr disk arranged rotatably endways with respect to the work on the same side as the deburring wheel and finishing the tooth edges, and comprising a machine frame featuring a work clamping fixture and a bed for a slide supporting the tool consisting of deburring wheel and guide gear, and supporting the secondary burr disk, said slide allowing infeed transverse to the axis of rotation of the work.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: April 18, 2000
    Assignee: The Gleason Works
    Inventors: Manfred Huber, Karl Schaferling
  • Patent number: 5876159
    Abstract: A sprocket trimming method for a multi-stage sprocket assembly is disclosed which includes the steps of: (1) aligning the two sprockets at a gear shift position where a chain is escaping from one sprocket and engaging with another sprocket and is being tilted at a tilting angle; (2) using a computer aided design simulation to simulate how the gear shift operation is taking place and thus identify the portion of the sprocket tooth that will be overlapped and/or interfered with the chain when the chain is moved from an escaping sprocket tooth to an engaging sprocket tooth; and (3) trimming the overlapping and interference portion of the sprocket teeth to a depth according to the following equation: ##EQU1## wherein: D is the depth of the overlapping and interference portion of the sprocket teeth to be trimmed, w is the pitch width of the chain, Lc is the pitch length of the chain, .theta.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: March 2, 1999
    Assignee: Industrial Technology Research Institute
    Inventors: Ching-Huan Tseng, Chwan-Cherng Wang, Chung-Biau Tsay, Chung-Ping Chiang, Pai-Hsiang Hsu
  • Patent number: 5154553
    Abstract: An apparatus allows for chamfering and deburring the end edges of a toothed production gear in a single operation and with one and the same tool. The tool includes two pressure wheels. Provided on each pressure wheel, axially side by side, are a ring of guide teeth and a ring of deburring teeth projecting circumferentially beyond the ring of the guide teeth. The rings have a filleted transition between them and together form chamfering teeth by means of which the end edges of the production wheels are pressed radially and axially against the production gear by means of adjusting drives.
    Type: Grant
    Filed: January 4, 1990
    Date of Patent: October 13, 1992
    Assignee: Maag Gear-Wheel & Machine Company Limited
    Inventor: Max Baumstark
  • Patent number: 5133627
    Abstract: Prior art non-generated, tip-relieved spiral bevel gears had tip-relieved surfaces that were nonuniform from the toe to the heel thereof. The subject tip-relieved spiral bevel gear is adapted to be manufactured by a gear generating machine, and includes a plurality of modified gear teeth individually having a convex tooth face and a relatively uniform tip-relieved surface on the convex tooth face from the toe to the heel portion thereof essentially parallel to the face angle at the outer tip surface. A two-pass method of machining the modified gear teeth is described.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: July 28, 1992
    Assignee: Caterpillar Inc.
    Inventor: Charles E. Lindsey
  • Patent number: 5052865
    Abstract: An apparatus for deburring radial end surfaces of axially oriented splines abutting annular grooves formed in workpieces such as mainshaft gears. The apparatus includes an axially oriented reference body and a splined workpiece support member rotatably mounted with respect to the reference body. Design of the apparatus is adaptable for deburring a workpiece having either male or female splines, wherein the splines are located in an annular recess disposed within the workpiece. In a preferred form, the apparatus includes a radially oriented cutting ring adapted to engage a radially extending groove for removal of burrs from rear surfaces of the axially extending splines. Also in a preferred form, the apparatus includes a device for axially adjusting the position of the cutting ring relative to various lengths of splines to be deburred.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: October 1, 1991
    Assignee: Dana Corporation
    Inventor: Anthony R. Kaczmarek
  • Patent number: 4689918
    Abstract: Apparatus for the manufacture or working of the tooth system of straight or helically toothed, externally or internally toothed gears with a hyperboloidally or globoidally or similarly formed toothed tool, which has an abrasive surface or the like, wherein a crossed-axes angle is provided. The intermeshed workpiece-tool is guided by a pair of guide wheels. The working takes place on only one flank of a tooth. The workpiece or tool spindle is coupled with a reversible motor. A brake is provided on one of the spindles. A shiftable coupling and additional brakes or centrifugal masses can furthermore be provided.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: September 1, 1987
    Assignee: Carl Hurth Maschinen-und Zahnradfabrik Gmbh & Co.
    Inventors: Herbert Loos, Manfred Erhardt