Selectively Patents (Class 407/39)
  • Patent number: 11524347
    Abstract: A cutting assembly for milling includes at least two milling cutting tools with shanks that are arranged in a rotatable tool holder at a distance from the central axis of the tool holder, such that an operational region of a cutting portion of each cutting tool is primarily facing outwards, in a radial direction, from the tool holder central axis.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: December 13, 2022
    Assignee: SECO TOOLS AB
    Inventor: Henk Haex
  • Patent number: 10814415
    Abstract: A gear cutting tool wherein each cutting blade group includes two differently positioned but identical cutting blades (41, 40) such as an one outside and one inside blade. The inventive blade arrangement only requires a single type of blade (30) in order to simultaneously cut the convex and the concave tooth flanks of a gear as well as the root fillet and root bottom portions of tooth slots. The cutter system allows radial adjustment of the outside cutting blade and the inside cutting blade independently of one another. Additionally, inside and outside cutting blades may be exchanged with one another.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: October 27, 2020
    Assignee: THE GLEASON WORKS
    Inventors: Hermann J. Stadtfeld, Anthony J. Norselli, Paul B. Spencer
  • Patent number: 10744574
    Abstract: Provided is a milling cutter including: a tool body to rotate about an axis; and cutting edges at an outer peripheral part of a front end of the tool body, wherein the cutting edges include a flat face machining cutting edge extending along a virtual plane perpendicular to the axis, and a recessed groove machining cutting edge projecting further toward a front end side in the axial direction than the flat face machining cutting edge, and the recessed groove machining cutting edge has a first inclined portion extending toward the front end side in the axial direction toward an outside in a radial direction, a second inclined portion arranged outside the first inclined portion in the radial direction and extending toward a base end side in the axial direction toward the outside in the radial direction, and a tip portion connecting the first and second inclined portions.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: August 18, 2020
    Assignee: Ahresty Corporation
    Inventors: Jyunichiro Shibuya, Masaaki Hasegawa, Koji Tatsuta
  • Patent number: 10413978
    Abstract: In an embodiment, a cutting tool includes a holder and a cutting insert. The holder is elongated, extends from a first end to a second end along a rotational axis. The holder includes an insert pocket on a side of the first end. The cutting insert is located in the insert pocket and includes a cutting edge. The insert pocket includes an opening in an end surface of the first end and an outer peripheral surface adjacent to the first end of the holder. The cutting insert further includes a first portion that is located more radially inward than an outer peripheral opening of in the insert pocket in a front view of the first end of the holder. The first portion has a width greater than a width of the opening in a direction along a rotation direction of the rotation axis.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: September 17, 2019
    Assignee: KYOCERA CORPORATION
    Inventor: Shin Deguchi
  • Patent number: 9815131
    Abstract: A reamer or similar tool comprising a cutting device having a cutting edge, a clamping device, whereby the cutting device can be clamped to the main body of the tool, an adjusting device that interacts with the cutting device, for adjusting the machining diameter of the tool, and a guiding device comprising an elongated guiding element, which interacts with an elongated guiding receptacle such that the cutting device can be guided in a sliding manner perpendicularly to the center axis during a displacement when the adjusting device is activated. The guiding element and the guiding receptacle extend perpendicularly to the center axis of the main body of the tool. The guiding device of the tool has a single guiding element and/or a single guiding receptacle, and the guiding element has an elongated elevation and the guiding receptacle has an elongated recess.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: November 14, 2017
    Assignee: MAPAL FABRIK FUR PRAZISIONWERKZEUGE DR. KRESS KG
    Inventor: Dieter Kress
  • Patent number: 9475132
    Abstract: An indexable cutting insert includes at least two side edges each defining an indexable edge of the insert and at least two cutting teeth are on each indexable edge. The cutting insert includes locating means on a plane of the upper face and/or a plane of the lower face. When mounted on a material removal tool, the locating means cooperate with receivers on the working face of the material removal tool to constrain degrees of freedom of the cutting insert. Further, the mounted cutting inserts each locate the radial edge of the cutting teeth in the active position on a common circumference of a circle centered on an axis of rotation of the material removal tool. A mounting system per see is also disclosed as well as a method of removing material from a workpiece with the material removal tool.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: October 25, 2016
    Assignee: Sandvik, Inc.
    Inventors: Yevgeny Kocherovsky, Kenneth Noggle, Michael Charron
  • Patent number: 8985916
    Abstract: A tool cartridge for a material removal tool has a cartridge body with, among other things, a recess extending through at least a portion of the cartridge body from a first side toward a second side, a long axis of the recess non-parallel to a long axis of the cartridge body and at least a portion of the recess open to a bottom side of the cartridge body, and a threaded opening for a differential screw proximate a second end of the tool body and positioned longitudinally between an opening for a clamping screw and at least a portion of a seat for a cutting tool insert. A thread axis of the threaded opening is at an angle G relative to a long axis of the tool cartridge. A material removal tool, a tool, and a method of adjusting a cutting tool insert are also disclosed.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: March 24, 2015
    Assignee: Sandvik Intellectual Property AB
    Inventors: Yevgeny Kocherovsky, Gregor Weber, Curt Holbrook
  • Patent number: 8814478
    Abstract: The invention relates to a tool for turning/turn broaching or external milling of work pieces rotating about longitudinal axes during machining, comprising a disc-shaped tool support having cassettes (20) disposed peripherally thereon, each of said cassettes containing a cutting insert (12, 13, 14), said cassettes being fastenable to a circular, partially circular or segmented removable support (11) that is fastened either directly to a machine spindle or indirectly to a machine spindle by way of an adapter.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: August 26, 2014
    Assignee: Kennametal Inc.
    Inventors: Juergen Baer, Markus Heinloth, Reinhard Floiger, Johann Woerner
  • Patent number: 8616808
    Abstract: The main body (12) of a machine tool (10) comprises a plate seat (18) having a plate element (16) arranged thereon. The plate element (16) has at least one plate edge (38), which protrudes freely to the outside over the plate seat (18) and rests against a bottom support surface of the plate seat (18). The plate element (16) can be fixed to the plate seat (18) by way of a bolt (20) extending through a bore hole in the plate element (16). A first brace (22) for the plate element (16) is provided on the plate seat (18), said brace having a support surface (34) against which the plate element (16) rests non-positively with a lateral plate surface. A further brace (24) is designed on the plate seat (18) for a lateral plate surface of the plate element (16) to rest against non-positively.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: December 31, 2013
    Assignee: Komet Group GmbH
    Inventors: Erkan Hodza, Juergen Fronius, Benno Spors
  • Patent number: 8475086
    Abstract: A tool cassette having a receptacle for an interchangeable cutting insert, wherein at least one setting element for setting the position of the tool cassette with respect to a seat for the cassette of a carrier tool is provided on the tool cassette.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: July 2, 2013
    Assignee: Kennametal Inc.
    Inventor: Peter Karl Mergenthaler
  • Patent number: 8327742
    Abstract: A rotating head and a corresponding method of removing material employing a base having a substantially planar underside, a plurality of bit holder assemblies connected to the base and holding a corresponding plurality of bits via the assemblies, and apparatus permitting adjusting cutting surfaces of the bits to be held at different distances from the underside, which enables removing material from a target by presenting it to the rotating base and thereby engaging the cutting surfaces with the target.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: December 11, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: James A. Austin
  • Patent number: 8157487
    Abstract: A cutting tool has cartridges in which cutting inserts may be retained. The location of each cartridge is adjustable by a bidirectional adjustment mechanism having an adjustment screw directed in the direction of adjustment. The adjustment screw has a head and a flexible flange with an annular recess therebetween. A protuberance projecting from the cartridge engages the annular recess with an interference fit thereby coupling the adjustment screw to the cartridge. As the adjustment screw is screw rotated about its axis of screw rotation it moves along the axis of screw rotation taking the cartridge with it. Screw rotation of the adjustment screw in opposite senses results in the adjustment of the position of the cartridge in opposite directions. Due to the fact that the protuberance is firmly located in the annular recess of the adjustment screw, play or backlash is eliminated.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: April 17, 2012
    Assignee: Iscar, Ltd.
    Inventors: Amir Satran, Alexander Bronshteyn, Alexander Koifman
  • Patent number: 8091205
    Abstract: The present invention provides a cartridge adjustment tool for adjusting the axial position of cartridges of a slotting cutter. The adjustment mechanism has a body axis of rotation and comprises a body peripheral surface that extends between a body front surface and a body rear surface. The body is provided with threaded through bores, each of which receives therein a threaded portion of a threaded bolt. When the adjustment mechanism is mounted on a mutual arbor with a slotting cutter having cartridges, each of the threaded bolts is opposite a force engagement area of the associated cartridge. By turning the head portion of the threaded bolts, each of the cartridges is axially displaced and the axial position of each of the cartridges may be individually set.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: January 10, 2012
    Assignee: Iscar, Ltd.
    Inventor: Shimon Kadosh
  • Patent number: 8092124
    Abstract: A milling cutter for machining work pieces, which comprises at least one cutting insert that can be adjusted by an adjusting element. The adjusting element is a one-piece element having an adjusting cone that extends between a screw head and a threaded shank. The adjusting cone engages with a recess provided in a lateral face of the cutting insert, which recess may also have a conical shape which substantially corresponds to the conical shape of the adjusting cone.
    Type: Grant
    Filed: November 24, 2006
    Date of Patent: January 10, 2012
    Assignee: Kennametal Inc.
    Inventors: Xaver Spichtinger, Heinrich Manner
  • Patent number: 7841810
    Abstract: A milling cutter head has a base body rotatable about a longitudinal axis and formed with axially extending seats, respective blade holders axially shiftable in the seats, respective blades welded to the blade holders and each having a cutting edge, and respective wedges shiftable in the base body and engaging the blade holders, whereby the wedges can adjust axial positions of the respective blades. A clamp can fix the blade holders in the body. The cutting edge of at least one of the blades is angled and has relative to the axis a long radially outer part and a short radially inner part angled relative to the respective outer part by 3° to 7° so that the two parts form an angle of 177° to 173°.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: November 30, 2010
    Assignee: Kennametal Widia Produktions GmbH & Co. KG
    Inventors: Markus Heinloth, Ralkf Klötzer, Helmut Klein
  • Patent number: 7753626
    Abstract: A micro-adjustable differential screw assembly for providing fine adjustment of the axial and/or radial position of a cutting insert is disclosed. The micro-adjustable differential screw assembly can be mounted directly to a boring bar or to a mounting cartridge, which in turn, can be mounted to the boring bar. An axial micro-adjustable differential screw assembly provides fine adjustment of an axial position of the cutting insert, while a radial micro-adjustable differential screw assembly provides fine adjustment of a radial position of the cutting insert. The differential screw assembly includes a rotatable drive screw with threads of different thread pitches, and a non-rotatable adjusting screw with threads for mating with the drive screw.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: July 13, 2010
    Assignee: Kennametal Inc.
    Inventors: John C. Musil, Thomas P. Quatkemeyer
  • Patent number: 7712404
    Abstract: A tool for chamfering the end of a pipe which is capable of accommodating a wide variety of different pipes, and employing at least one cutter assembly which can be positioned to cut either the outside or the inside edges of pipes, while simultaneously truing the end of the pipe.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: May 11, 2010
    Inventor: Mark W. Markle
  • Publication number: 20100028091
    Abstract: A cutting tool has cartridges in which cutting inserts may be retained. The location of each cartridge is adjustable by a bidirectional adjustment mechanism having an adjustment screw directed in the direction of adjustment. The adjustment screw has a head and a flexible flange with an annular recess therebetween. A protuberance projecting from the cartridge engages the annular recess with an interference fit thereby coupling the adjustment screw to the cartridge. As the adjustment screw is screw rotated about its axis of screw rotation it moves along the axis of screw rotation taking the cartridge with it. Screw rotation of the adjustment screw in opposite senses results in the adjustment of the position of the cartridge in opposite directions. Due to the fact that the protuberance is firmly located in the annular recess of the adjustment screw, play or backlash is eliminated.
    Type: Application
    Filed: June 3, 2009
    Publication date: February 4, 2010
    Applicant: Iscar, Ltd.
    Inventors: Amir Satran, Alexander Bronshteyn, Alexander Koifman
  • Publication number: 20090249607
    Abstract: The present invention provides a cartridge adjustment tool for adjusting the axial position of cartridges of a slotting cutter. The adjustment mechanism has a body axis of rotation and comprises a body peripheral surface that extends between a body front surface and a body rear surface. The body is provided with threaded through bores, each of which receives therein a threaded portion of a threaded bolt. When the adjustment mechanism is mounted on a mutual arbor with a slotting cutter having cartridges, each of the threaded bolts is opposite a force engagement area of the associated cartridge. By turning the head portion of the threaded bolts, each of the cartridges is axially displaced and the axial position of each of the cartridges may be individually set.
    Type: Application
    Filed: March 4, 2009
    Publication date: October 8, 2009
    Applicant: Iscar Ltd.
    Inventor: Shimon KADOSH
  • Publication number: 20080232910
    Abstract: A system for attaching a cutting member to a cutter body includes a pin, a clamping bolt and an adjustment bolt. The pin has a longitudinal axis and at least a first attachment bore and a second attachment bore. The clamping bolt has a clamping section which is formed to releasably secure the cutting member to the cutter body and has a first attachment section which is formed to be releasably secured in the first attachment bore of the pin. The system may have an adjustment bolt that has an adjustment section which is formed to adjust the position of the cutting member relative to the cutter body and has a second attachment section which is formed to be releasably secured in the second attachment bore of the pin.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 25, 2008
    Applicant: Iscar Ltd.
    Inventor: Gil Hecht
  • Patent number: 7114890
    Abstract: The instant invention is directed to an adjustment device for a multiple insert cutting tool with adjusting elements using a wedge to adjust the position of an insert in a tool body pocket through an intermediate component having expansion elements. The intermediate component is disposed in a cavity which is at least partly contiguous with a pocket containing an insert. The intermediate component engages the insert to be adjusted and, when expanded, adjusts the position of the insert.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: October 3, 2006
    Assignee: Valenite Inc.
    Inventor: Kenneth G. Noggle
  • Patent number: 7037050
    Abstract: A milling head is provided having a basic body and cutting inserts which can be adjusted in the basic body in recesses and are clamped down by a clamping element which is disposed in the recesses.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: May 2, 2006
    Assignee: Hartmetallwerkzeugfabrik Andreas Maier GmbH
    Inventors: Andreas Maier, Wilfried Eble
  • Publication number: 20020081168
    Abstract: A tool for the fine machining of workpieces having at least one cutter tip and at least one setting device acting on the cutter tip. The setting device comprises an adjusting element extending over a region of one side face of the cutter tip. A set screw displaces the adjusting element relative to the cutter tip at least one radially and axially with respect to the body. This moves the cutter tip at least one of radially and axially with respect to the body of the tool. A second adjusting element operably by a second setting device may be provided to act on a second side face of the cutter tip.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 27, 2002
    Applicant: MAPAL Fabrik fur prazisionswerkzeuge Dr. Kress KG
    Inventor: Dieter Kress
  • Patent number: 6086290
    Abstract: A milling tool includes a rotatable supporting body having detachable cassettes upon which cutting inserts are mounted. The cutting inserts are provided with cutting edges. Two serrated surfaces are provided in order to connect the individual cassette with the supporting body. A first of the two serrated surfaces is located upon the periphery of the supporting body and faces outwards from the supporting body, while the other serrated surface is formed at an inner side of the cassette.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: July 11, 2000
    Assignee: Sandvik AB
    Inventors: Ingemar Qvarth, Lars-Erik Enquist
  • Patent number: 5967705
    Abstract: A rotary metal-cutting tool includes a tool body and a cartridge carrying a cutting insert that is adjustable in relation to the tool body. The adjustment is accomplished by providing a serration on one side surface of the cartridge and a correspondingly curved recess in the tool body adjacent the serration for the receipt of a key element. The key element has teeth engageable with the serration such that rotation of the key produces adjustment of the cartridge and insert.
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: October 19, 1999
    Assignee: Sandvik Aktiebolag
    Inventor: Gunter Wermeister
  • Patent number: 5957628
    Abstract: A face milling cutter or angular milling cutter, with a carrier body which on its periphery at regularly or irregularly distributed distances comprises pockets which extend parallel to the rotational axis of the carrier body for accommodating cassettes which for their part comprise seating surfaces for receiving cutting plates, with a fastening device for the cutting plates in the cassette, with a screw fastening for fixing the cassettes in the pockets and with adjusting screws for a limited axial adjustment of the cassettes in the pockets, wherein the adjusting screws are seated in threaded bores of the carrier body, which proceeding from the end-face of the carrier body are arranged approximately parallel to the rotational axis of the carrier body.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: September 28, 1999
    Assignee: Wilhelm Fette GmbH
    Inventors: Bernhard Bentjens, Uwe Schunk, Reinhard Wagner, Gerhard Dehn, Werner Kolker
  • Patent number: 5913643
    Abstract: An adjustable lead angle toolholder is disclosed for selectively cutting a workpiece at 30.degree., 45.degree., or 60.degree. angles. The toolholder may have a rotatable, cylindrical endmill body that includes a radially-oriented wall or a stationary, square shank having a planar wall on its distal end. The toolholder further includes a cutting insert having at least one linear cutting edge, and a mounting assembly for pivotally mounting the insert onto the wall of the endmill body such that a lead angle of the linear cutting edge is adjustable with respect to the outer periphery of the toolholder body. The mounting assembly includes a plate-shaped insert holder, and a fastener for pivotally connecting the insert holder to the wall of the toolholder body. A locking screw secures the plate-shaped insert holder at a selected pivoted position on the wall of the toolholder body. The invention allows a single toolholder to cut or chamfer a workpiece at different angles.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: June 22, 1999
    Assignee: Kennametal Inc.
    Inventors: Jeremy L. Fowler, Craig S. Adcock, Jeffrey E. Hartshorn, Scott W. Vogel
  • Patent number: 5735649
    Abstract: The invention is an apparatus for adjusting the position of a cutter cartridge mounted on a machine tool head using noncircular adjustment pins that provide full linear contact between the machine tool head and the cutter cartridge.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: April 7, 1998
    Assignee: Kaiser Precision Tooling, Inc.
    Inventors: William Boscarino, Klaus Lohner, John E. Burley
  • Patent number: 5529439
    Abstract: A milling cutter head intended for metal machining, particularly aluminum, comprises grooves in which are mounted cutting insert-carrying cartridges and spacer plates. The sides of the cartridge and the spacer plate that are in contact are serrated in the same direction. The other side of the spacer plate and the side surface of the groove being in contact with it are serrated in a direction which is substantially perpendicular to the first mentioned serration. In this way, it is possible to independently and precisely adjust each of the axial and radial directions of the cutting edge.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: June 25, 1996
    Assignee: Sandvik AB
    Inventors: Heinz Werner, Ake Almersand
  • Patent number: 5336026
    Abstract: An adjustable cartridge to be mounted in the end of a boring bar, the cartridge including an anvil rotatably affixed to said boring bar, said anvil including a pocket into which a indexable insert is affixed. The anvil is secured in an axially oriented slot which includes an arcuate seating face which includes a key and key way slot. Rotation of the anvil within the slot effects radial adjustment of the insert a key pin serves to pivotally secure the cartridge within the pocket. In addition, the level or back taper of the insert can be adjusted.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: August 9, 1994
    Assignee: Valenite Inc.
    Inventor: Kenneth G. Noggle
  • Patent number: 5186583
    Abstract: An inserted tooth rotary cutter is disclosed which includes a tool body having an axis of rotation therethrough and a plurality of indexable cutting inserts. The tool body is defined by forward and rearward axial faces and a circumferential surface lying between the forward and rearward axial faces. The tool body has a plurality of insert receiving recesses formed in the circumferential surface in circumferentially spaced relation to one another and has a mounting bore formed coaxially therewith. Furthermore, the tool body has a plurality of through holes formed in circumferentially spaced relation to one another. Each through hole is disposed between two adjacent insert receiving recesses and opens to the circumferential surface and the forward axial face. Each insert is releasably secured to a respective insert receiving recess.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: February 16, 1993
    Assignee: Mitsubishi Materials Corporation
    Inventors: Masaaki Nakayama, Masayuki Okawa
  • Patent number: 5123787
    Abstract: A machining tool to be mounted upon a cutter body, the machining tool including a cartridge for mounting upon the cutter body and an anvil rotatably affixed to the cartridge, the anvil including a pocket into which is affixed a cutting insert for rotation with the anvil.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: June 23, 1992
    Assignee: GTE Valenite Corporation
    Inventor: Carl E. Hunt
  • Patent number: 5120166
    Abstract: A broaching tool has at least one adjustable cutting blade or plate. A two-fold adjustment is possible by mounting each cutting blade on an upper section of an insert mounted in a recess of a support or support ring sector. The upper insert section is secured to a lower insert section. The lower insert section is radially adjustable. The upper insert section is axially adjustable. Each adjustment can be made independently of the other adjustment.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: June 9, 1992
    Assignee: Widia Heinlein GmbH
    Inventor: Johann Woerner
  • Patent number: 5054970
    Abstract: A boring head with a longitudinal axis includes a leading cutting portion and a trailing portion. A pair of adjustable work engagement devices are releasably secured to the leading portion by individual fasteners. Individual mechanisms for adjusting the position of each of the work engagement devices in a first direction generally parallel to the longitudinal axis of the boring head, and individual mechanisms for adjusting the position of each of the work engagement devices in a second direction, generally transverse to the first direction, are provided. The first and second direction adjusting mechanisms are positioned coaxially of each other in the boring head. Each work engagement device is adjustable in the first and second directions individually and independently of the other.
    Type: Grant
    Filed: February 25, 1991
    Date of Patent: October 8, 1991
    Assignee: Parlec, Inc.
    Inventor: Rudolph Steiner
  • Patent number: 5054703
    Abstract: A chipper knife assembly for a stump disintegrator is disclosed in which knife holder bodies radially span across pockets or openings formed in a rotating chipper disk. A reversible and replaceable blade insert with a plurality of selectable carbide edges is carried on the leading face of the holder body and fixed thereon by means of a threaded fastener inserted from the trailing face of the holder body through a hole formed between the trailing face and the leading face. The end of the fastener engages a threaded recess in the blade insert. The chipper knife assembly divides the chipper disk opening into a leading opening through which wood chips and other debris may pass for subsequent discharge and a leading opening which provides clearance and access to the threaded fastener for its removal and installation.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: October 8, 1991
    Assignee: Wood Technology, Inc.
    Inventor: Norval Morey
  • Patent number: 4938638
    Abstract: A milling cutter for chip machining is equipped with adjustable cutting inserts. The milling cutter comprises a tool body having a plurality of peripheral recesses. Each recess is adapted to receive a cutting insert, a support element for defining a support surface against which the insert abuts, an adjustment element for adjusting the position of the cutting insert in a first direction, and a wedge for securing the insert. The adjustment element is threadedly connected to the support element for rotation relative thereto when adjusting the insert. The support element could also include a rotatable portion for adjusting the insert in a second direction.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: July 3, 1990
    Assignee: Sandvik AB
    Inventors: Anders B. I. Hessman, Leif R. Nystrom
  • Patent number: 4848977
    Abstract: In known cutter heads, the centrifugal forces occurring at high rotational speeds may cause the occurrence of dilatations permitting the cutting edges of the cutting tools to shift from their adjusted positions. An object of the invention is the provision of a cutter head capable of being accurately and reliably adjusted for operation also at high rotational speeds.According to the invention, a clamping wedge 13 is provided with a skewed clamping surface 21b adapted to cooperate with a contact surface 21a of a cutter blade carrier 2 for clamping it in a groove 20 of a mounting body 1. The invention also proposes the provision of a prism wedge clamping system 10 for supporting the cutter head carrier 2 in the radial direction relative to the mounting body 1.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: July 18, 1989
    Assignee: Entwicklungszentrum fur Zerspanungstechnik
    Inventor: Walter Kieninger
  • Patent number: 4692069
    Abstract: The invention relates to a cutter head having a substantially cylindrical main body and a plurality of replaceably cutting elements disposed at the periphery of said main body and having at least one cutting edge in the axial and/or radial direction of said main body. For achieving a reliable three-dimensional adjustment of the cutting members within extremely close tolerances, each cutting member is mounted on a carrier member itself mounted on said main body and adapted to be radially and axially adjusted relative to the main body by means of separate adjustment means disposed between said main body and said carrier member, and to be fixed relative to said main body with the aid of clamping means.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: September 8, 1987
    Assignee: Walter Kieninger GmbH
    Inventor: Walter Kieninger
  • Patent number: 4627771
    Abstract: In a milling tool with a disc-shaped base member 1 having a central securement bore 2 and provided, in the region of its outer periphery, with equidistantly spaced retainer cutouts open towards the front face of the base member, for receiving and for retaining the respective cutting plate support 4, which is adapted and fixedly secured in the respective retainer cutout 3 for selective adjustment both in an axial as well as, independently therefrom, in a radial direction. Each support 4 carries a cutting plate 6 or 62 whose main plane is disposed generally radially.
    Type: Grant
    Filed: January 16, 1985
    Date of Patent: December 9, 1986
    Inventor: Walter Kieninger
  • Patent number: 4626150
    Abstract: A machine tool essentially comprises a chuck or workpiece holding assembly (S) for rotating a workpiece (W) about a revolution axis (X) of a surface to be obtained on the workpiece, and a rotary composite tool (22) having a series of elementary tools (32.sub.1 . . . 32.sub.6) located at angularly spaced apart positions about an axis of rotation for the composite tool; each elementary tool has respective front cutting edges (40) substantially radial relative to such an axis of rotation. The axis of rotation for the composite tool is orthogonal to a plane tangent to the surface to be obtained on the workpiece and the composite tool is movable relative to the workpiece parallel to such a plane. The consecutive front cutting edges are arranged on the composite tool at decreasing spacings from its axis of rotation, and at decreasing spacings from the workpiece surface. The farthest front cutting edge from the axis of rotation is also the farthest cutting edge from the tangent plane.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: December 2, 1986
    Assignee: Istituto per le Richerche di Tecnologia Meccanica Rtm
    Inventors: Alirio Dapiran, Gurioli Giovanni
  • Patent number: 4547100
    Abstract: A cutting tool with precisely adjustable disposable cutting inserts. In the preferred embodiment of a face milling cutter, the tool utilizes insert holding cartridges mounted in cavities spaced about the periphery of the cutter body, each cartridge including an insert mounting pocket for presenting each insert such that its cutting portion extends beyond a face of the cutter body. The insert mounting portion of each cartridge is rendered flexible by a slot in the cartridge body. A wedge mechanism adjacent each cartridge causes the cartridge to bend in a manner such that the insert cutting tip will traverse an arcuate path thereby finally and precisely varying the extent to which the cutting portion of the insert extends beyond the cutter body face.
    Type: Grant
    Filed: September 28, 1983
    Date of Patent: October 15, 1985
    Assignee: The Valeron Corporation
    Inventors: Peter D. Naccarato, Robert W. Johnson
  • Patent number: 4486131
    Abstract: The turning tool has a disc-shaped base element 1 connectable to the spindle of a lathe and four toolholders 6, 7, each with one or more cutting plate supports 12, adjustable radially relative to the rotary axis (D-D), clampable with an adjusting screw 25, and carrying a cutting plate 23. The base element 1 has a housing bore parallel to the axis (D-D) of rotation to receive a cylindrical shank 5 of each toolholder 6 or 7. Each toolholder 6, 7 has an axial adjusting screw 14 screwable parallel to the rotary axis D-D. A pin 8 in the shank 5 cooperates with an axial groove 9 and is fixed by means of a screw 10 cooperating with a recess 11 in the pin 8 to clamp the shank 5 in the adjusted axial position. Different cutting plate supports 12a, 12b and 12c can be used to enable a variety of machining operations to be carried out.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: December 4, 1984
    Assignee: Komet Stahlhalter-und Werkzeugfabrik, Robert Breuning, GmbH
    Inventor: Otto Eckle
  • Patent number: 4474512
    Abstract: A milling tool comprises a plurality of cutting bit holders mounted by clamps on the tool circumference. Each holder is mounted in a radial recess which is inclined with respect to the longitudinal axis of the tool. A pair of set screws are arranged for displacing each holder in a radial direction of the tool. Independently of such displacement, the bit holder is adjustable in an axial direction of the tool by means of an eccentric. The bit holder may also be displaced about an axis perpendicular to the plane of the cutter bit.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: October 2, 1984
    Assignee: Santrade Ltd.
    Inventors: Willi Lindlar, Guenter Wermeister
  • Patent number: 4429726
    Abstract: The cutter blades of the cutter heads of the present machine are supported in such a manner that they may be quickly and accurately adjusted for varying the cutting depth of the cutter blades. The cutter blades are supported in groove-shaped receptacles equally spaced around the cutter head and means is provided for adjustably supporting and positively locking the cutter blades in the desired adjusted position in the groove-shaped receptacles. An adjusting plate is fixed to the cutter blade by mating sawtoothlike grooves to provide a primary adjustment of the cutter blades. The adjustment plate including a guide surface which includes a gradient component extending in at least one adjustment direction of the cutting blade so that secondary adjustments may be made to the position of the cutter blade.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: February 7, 1984
    Assignee: Michael Weinig GmbH & Co. KG
    Inventor: Otto Betzler
  • Patent number: 4311418
    Abstract: A milling cutter which is adapted to be rotated about a central axis includes at least one insert pocket having opposed leading and trailing walls, as well as a rear wall. An indexable insert having front and rear planar surfaces is receivable in the insert pocket, along with at least one locking wedge, which is interposed between the insert and the pocket walls for securing the insert within the pocket. In accordance with the subject invention, an adjustable locating wedge is provided for regulating the axial location on the insert. The locating wedge, a portion of which is disposed in abutting relationship with the axially lowermost cutting edge of the insert, is received within a groove located in the rear wall of the insert pocket. The receiving groove is aligned with the insert and extends radially inwardly from the periphery of the cutter body.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: January 19, 1982
    Assignee: General Electric Company
    Inventors: Donald S. Erkfritz, Lawrence A. Alfonsi
  • Patent number: 4268194
    Abstract: Radial adjustment of cutter blades in a roughing hypoid gear cutter is effected by a tapered adjustment block. A differential screw engages threads in the block and in the cutter body to cause relative axial displacement. The taper on the adjustment block in cooperation with a tapered surface on the cutter body translates the axial displacement into a radial displacement of the upper surface of the adjustment block and the corresponding cutter blade. A pair of cap screws permit independent axial adjustment of each cutter blade. A one piece cutter body provides maximum simplicity and rigidity.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: May 19, 1981
    Assignee: Illinois Tool Works Inc.
    Inventors: Harry W. Bloink, Walter G. Huber
  • Patent number: 4231691
    Abstract: The head has a transverse groove in its leading face in which two cutting blade holders with interchangeable cutting blades are clamped by means of a set screw. After loosening of the set screw, the cutting blade holders can be radially and axially adjusted by means of adjusting screws. This enables precise positioning of the cutting blades, to eliminate unequal chip formation, and rough operation due to unequal loading of the blades.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: November 4, 1980
    Assignee: Heinz Kaiser AG
    Inventors: Dieter Pape, Hans Woerz
  • Patent number: 4137001
    Abstract: Tooth forming blades for cutting hypoid pinion and ring gears, each including a pressure angle face and an end face which require periodic sharpening, and a front or cutting face including a predetermined rake angle formed along the full blade length and requiring no sharpening, the blades being adapted to being mounted in radial receiving slots formed in a cutter body aligned at their cutting ends and having overall lengths which vary in a random manner, affective to being individually replaced after being ground to a predetermined minimum length as a result of repeated sharpening operations.
    Type: Grant
    Filed: May 2, 1977
    Date of Patent: January 30, 1979
    Assignee: General Motors Corporation
    Inventor: Edgar A. Fountain