Rotary, Gear Shaving Cutting Tool Patents (Class 407/27)
-
Patent number: 11396056Abstract: A method for providing teeth on working gears by cutting, wherein the working gear and the cutting tool are driven in rotation at a predetermined speed ratio along axes oriented at an intersection angle. The flanks of the cutting teeth form edges having flank cutting sections arranged on the edges of a gap between two adjacent teeth and extend along a first contour line, and which as a result of an advance in the direction of the working gear engage in a cutting manner to produce teeth having a flank contour predetermined by the shape of the cutting edge. Each of the flank cutting sections is adjoined by a tip cutting section which extends along a second contour line in the region of the base of the cutting tooth gap, wherein the second contour line is curved such that at least partially rounded tooth tips are produced on the teeth.Type: GrantFiled: September 9, 2020Date of Patent: July 26, 2022Assignee: Profilator GmbH & Co. KGInventor: Jonathan Zimmermann
-
Patent number: 10695851Abstract: 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: GrantFiled: January 18, 2019Date of Patent: June 30, 2020Assignee: KLINGELNBERG GMBHInventors: Karl-Martin Ribbeck, Gary Töpfer, Jürgen Weber
-
Patent number: 9919371Abstract: A gear machining apparatus includes a machining tool having a plurality of protruding tool edges on an outer periphery of the machining tool, and driving apparatuses that form a tooth on a work piece by rotating the machining tool around a central axis thereof, rotating the work piece W around a central axis thereof, and moving the machining tool relative to the work piece. Radial outer faces of the protruding tool edges form multiple steps that are parallel to the central axis of the machining tool such that the diameter of the machining tool increases in a stepwise manner from a tool leading end toward a tool base end of the machining tool.Type: GrantFiled: July 6, 2016Date of Patent: March 20, 2018Assignee: JTEKT CORPORATIONInventors: Kazuki Natsuda, Hisashi Otani, Hiroyuki Nakano
-
Patent number: 9656335Abstract: A broach tool includes a broach tool rake face with a tailored surface topography.Type: GrantFiled: March 7, 2014Date of Patent: May 23, 2017Assignee: United Technologies CorporationInventors: Tahany I. El-Wardany, Wayde R. Schmidt
-
Patent number: 8186032Abstract: 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: GrantFiled: September 6, 2006Date of Patent: May 29, 2012Assignees: Liebherr-Verzahntechnik GmbH, Fette GmbHInventors: Wolfgang Carmincke, Oliver Winkel
-
Publication number: 20080170915Abstract: A face hobbing or gear cutting head for cutting gears, such as spiral, bevel, and hypoid gears which has a blade carrier for holding cutter blades. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.Type: ApplicationFiled: January 11, 2008Publication date: July 17, 2008Inventor: Dieter Muhlfriedel
-
Patent number: 6839953Abstract: An apparatus is provided for manufacturing a gear component. The apparatus includes a plurality of tooling stocks movable relative to a base. The tooling stocks function to retain a component, as well as operably driving a combination hob/shaver tool and a combination chamfer/debut tool. The apparatus reduces the number of machines required to complete the gear component as well as reducing the cycle time for complete component manufacture. In this way, a more efficient manufacturing system is provided, whereby capital investment and operational costs are reduced.Type: GrantFiled: May 18, 2004Date of Patent: January 11, 2005Assignee: Magna Drivetrain of America, Inc.Inventors: Brian M. Fitzgerald, Jeffrey A. Rynders
-
Patent number: 6757949Abstract: An apparatus is provided for manufacturing a gear component. The apparatus includes a plurality of tooling stocks movable relative to a base. The tooling stocks function to retain a component, as well as operably driving a combination hob/shaver tool and a combination chamfer/debur tool. The apparatus reduces the number of machines required to complete the gear component as well as reducing the cycle time for complete component manufacture. In this way, a more efficient manufacturing system is provided, whereby capital investment and operational costs are reduced.Type: GrantFiled: January 9, 2003Date of Patent: July 6, 2004Assignee: New Venture Gear, Inc.Inventors: Brian M. Fitzgerald, Jeffrey A. Rynders
-
Patent number: 6676337Abstract: 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: GrantFiled: May 9, 2002Date of Patent: January 13, 2004Assignee: The Gleason WorksInventor: Thomas Daniek
-
Patent number: 6585457Abstract: A hob cutter includes a cutting portion and an abrading portion in mechanical communication with the cutting portion. The cutting portion includes a plurality of hob teeth having at least one gash extending therethrough to define a cutting face on a front of each hob tooth and a trailing face on a back of each hob tooth. The abrading portion includes a plurality of abrading teeth positioned adjacent to each other. Both the hob teeth and the abrading teeth are continuously formed and helically arranged.Type: GrantFiled: December 27, 2000Date of Patent: July 1, 2003Assignee: Delphi Technologies, Inc.Inventors: Thomas J. Bucholz, David E. King, Donald D Albrecht, Theodore Glenn Seeger, Jeffery Alan Zuraski
-
Publication number: 20020197118Abstract: 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: ApplicationFiled: May 9, 2002Publication date: December 26, 2002Inventor: Thomas Daniek
-
Publication number: 20020081162Abstract: A hob cutter includes a cutting portion and an abrading portion in mechanical communication with the cutting portion. The cutting portion includes a plurality of hob teeth having at least one gash extending therethrough to define a cutting face on a front of each hob tooth and a trailing face on a back of each hob tooth. The abrading portion includes a plurality of abrading teeth positioned adjacent to each other. Both the hob teeth and the abrading teeth are continuously formed and helically arranged.Type: ApplicationFiled: December 27, 2000Publication date: June 27, 2002Inventors: Thomas J. Bucholz, David E. King, Donald D. Albrecht, Theodore Glenn Seeger, Jeffery Alan Zuraski
-
Patent number: 6050755Abstract: 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: GrantFiled: August 21, 1998Date of Patent: April 18, 2000Assignee: The Gleason WorksInventors: Manfred Huber, Karl Schaferling
-
Patent number: 5651644Abstract: A wafer shaving cutter includes a plurality of first annular plates alternatingly arranged with spacers or second plates and joined together into a fixed member. Each of the first plates includes a plurality of circumferentially spaced teeth, each tooth having opposed side lands formed in a predetermined gear profile. The width of each tooth on the spacers is smaller than the corresponding tooth width of each tooth on the first plates to form grooves between adjacent cutting edges of adjacent disposed first plates. In one embodiment, a plurality of teeth having a smaller width than the teeth on the first plates are spacedly formed about each of a plurality of second plates alternatingly arranged with the first plates. The major faces of the first plates and the spacers or second plates are surface ground to a smooth finish. In a preferred embodiment, the teeth on the first and second plates are helically arranged along the shaving cutter.Type: GrantFiled: June 22, 1994Date of Patent: July 29, 1997Inventor: Sante Basili
-
Patent number: 5377457Abstract: Gear-shaped precision-working tools, in particular shaving gears, capable of providing an optimum machining result only during a portion of their entire lifetime, since during each regrinding (generating), the profile displacement factor, and thus the number of the tooth flanks which engage successively and simultaneously one after the other the workpiece gear to be machined, is changed. This is remedied with the invention in such a manner that the precision-working tool is reground (generated) while maintaining the original number of teeth (z) and the original normal module of the pitch angle (.beta.), the module in transverse section and the base circle diameter are changed in such a manner that little or no change occurs to an original profile displacement factor (x).Type: GrantFiled: May 14, 1993Date of Patent: January 3, 1995Assignee: Hurth Maschinen und Werkzeuge GmbHInventors: Herbert Loos, Manfred Erhardt
-
Patent number: 5007773Abstract: A helical toothed shaving cutter used for finishing or shaving of gears as well as a shaving cutter suitable for plunge cut shaving. The shaving cutter includes a multiplicity of ribs forming the cutter tooth flanks, arranged in a manner substantially symmetrically with respect to each axial centerline of each of the cutter teeth, and each of the ribs has both a positive rake angle at its leading cutting edge and a negative rake angle at its trailing cutting edge as viewed in the direction of lateral sliding direction of along the tooth trace cutter.Type: GrantFiled: June 14, 1989Date of Patent: April 16, 1991Assignee: Nachi-Fujikoshi CorporationInventors: Koichi Souketani, Yukio Ito, Yoshio Sasaki, Teiji Kurita, Jun Tamiya
-
Patent number: 4848976Abstract: A laminated gear shaving tool formed by a stack of toothed discs mounted on a rotatable body. The flanks of each tooth are cut away to form lands, the lands being successively laterally displaced (staggered) across the disc thickness around the circumference. The cutting edges may be inclined across the tooth thickness and/or the lateral face may be re-entrant; the discs may be inclined to the axis of rotation of the tool; and, where the corresponding lands are not staggered, the toothed discs may be separated by spacing discs.Type: GrantFiled: February 17, 1987Date of Patent: July 18, 1989Inventor: James C. Crockett
-
Patent number: 4720220Abstract: For machining the tooth flanks of a hardened workpiece having pre-formed teeth two cutting blades or plates are secured to a cutting blade or plate holder. The cutting blades or plates are provided with a base member or backing formed of a hard metal and a cover layer sintered thereon which is formed of cubic boron nitride. Each cutting blade forms a cutting surface and a clearance surface. Each individual cutting blade or plate is arranged at the cutting blade or plate holder in relation to the direction of the intended cutting movement such that the surface of the cover layer forms the clearance surface and an end face or surface of the cover layer is located in the cutting surface. Consequently, there is achieved the result that the cutting surface can be reground in the same manner as tools which, for example, are made of hardened steel and which are not provided with a cover layer.Type: GrantFiled: January 16, 1986Date of Patent: January 19, 1988Assignee: Maag Gear Wheel & Machine Co. Ltd.Inventors: Peter Bloch, Rudolf Fischer, Roman Schwaighofer
-
Patent number: 4610577Abstract: A gear or rack-shaped tool for precision machining of tooth flanks of gears is provided with a coating of a hard material like diamond or cubic bornitride (CBN). In order to be able to apply this coating without any problems, the tool includes two connected halves. Each half includes a base member with teeth which project axially beyond one side of the base member every second tooth being removed. The projecting teeth of each half project into the gaps created by the teeth removed from the other half.Type: GrantFiled: October 25, 1984Date of Patent: September 9, 1986Assignee: Carl Hurth Maschinen und Zahnradfabrik GmbH & Co.Inventor: Johann Spensberger
-
Patent number: 4426893Abstract: A machine for serrating the flanks of the teeth of a gear-like tool for shaving gears in which a generating, relative motion equivalent to rolling the tool on a rack is provided and in which one of a plurality of serrating tools are positioned for cutting serrations in the flanks of the teeth.Type: GrantFiled: April 28, 1980Date of Patent: January 24, 1984Assignee: Lear Siegler, Inc.Inventor: Stewart F. Miller
-
Patent number: 4380411Abstract: A screw type shaving cutter and a method of producing the same. A large number of cutting edges are formed on the flanks of the thread of the cutter. Each cutting edge is inclined along a curve or a straight line in the trailing direction as viewed in the direction of rotation of the cutter in use. This shaving cutter is produced by forming a screw body by cutting a metal blank into a form of a screw, and forming a number of cutting edges on the flanks of the thread of the screw body by reciprocatingly moving a cutting tool on the flanks of the thread, while rotating the screw body continuously in one direction.Type: GrantFiled: March 19, 1981Date of Patent: April 19, 1983Inventor: Masato Ainoura
-
Patent number: 4280773Abstract: A screw type shaving cutter and a method of producing the same. A large number of cutting edges are formed on the flanks of the thread of the cutter. Each cutting edge is inclined along a curve or a straight line in the trailing direction as viewed in the direction of rotation of the cutter in use. This shaving cutter is produced by forming a screw body by cutting a metal blank into a form of a screw, and forming a number of cutting edges on the flanks of the thread of the screw body by reciprocatingly moving a cutting tool on the flanks of the thread, while rotating the screw body continuously in one direction.Type: GrantFiled: May 15, 1979Date of Patent: July 28, 1981Inventor: Masato Ainoura
-
Patent number: 4155677Abstract: An improvement in a deburring or chamfering tool mountable on at least one face of a guide gear of the type disclosed in U.S. Pat. No. 4,068,558 . The teeth of the tool have on one axially facing side thereof grooves extending from one edge of the tooth to the other thereof. The tool is generally disk-shaped and the grooves are either ring-shaped or shaped in the form of a spiral. Multiple grooves can be provided on the axial face of the disk and the edges which are formed at a location where the grooves intersect a tooth form cutting edges.Type: GrantFiled: November 30, 1977Date of Patent: May 22, 1979Assignee: Carl Hurth Maschinen- und ZahnradfabrikInventor: Herbert Loos
-
Patent number: 4068558Abstract: A device for deburring or chamfering the axial edges of teeth on a workpiece. The device is composed of a guide disk having a pair of cutting disks on the axially facing sides thereof. The cutting disks each have teeth thereon as does the guide disk. The cutting disks are provided with cutting surfaces which engage the axial edges of the teeth of a workpiece to provide a chamfer therein. Structure is also provided for adjusting the cutting disks relative to the guide disk.Type: GrantFiled: July 14, 1976Date of Patent: January 17, 1978Assignee: Carl Hurth Maschinen- und ZahnradfabrikInventor: Herbert Loos