With Separate Means To Fasten Tool Seat To Holder Patents (Class 407/101)
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Patent number: 8388271Abstract: A cutting tool assembly includes an exchangeable adapter releasably secured to a holder. The adapter is provided with a side plate. In a bottom view of the holder, a portion of a front surface of the holder adjacent a first side surface of the holder forms an internal acute angle ? with the first holder side surface and in a bottom view of the adapter, a rear surface of the adapter side plate forms the acute angle ? with an inner side surface of the adapter.Type: GrantFiled: November 3, 2010Date of Patent: March 5, 2013Assignee: Iscar, Ltd.Inventors: Moshe Elbaz, Nader Farraj, Yossi Abrahami
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Publication number: 20130034393Abstract: A modular cutting tool holder portion for a metal-working machine includes a first engagement face configured for clamping engagement with a corresponding second engagement face of a complementary modular cutting tool holder portion. The first engagement face includes a base surface and interlocking elements in the form of exactly four projecting protrusions or exactly four recesses. Each interlocking element includes a non-contact surface spaced from the base surface. The non-contact surface includes two opposing edges between which it extends, and two abutment surfaces each extending from a respective one of the two opposing edges to the base surface and being configured for the clamping engagement.Type: ApplicationFiled: July 18, 2012Publication date: February 7, 2013Applicant: Iscar, Ltd.Inventor: Gil Hecht
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Publication number: 20120230784Abstract: A cutting tool includes a polygonal cutter body and an end cutting insert for chipforming machining mounted in a serrated seat disposed at an axial end of the cutter body. A bottom surface of the insert has a plurality of parallel serrations meshing with corresponding serrations of the seat. The serrations extend transversely relative to the longitudinal axis for resisting axially rearward cutting forces applied to the insert. The seat is formed directly by the cutter body, or by a shim disposed beneath the insert. The shim is provided with a downward lip to transfer axial forces to the cutter body. The insert can be square or triangular, wherein the serrations are in the form of a plurality of sets of parallel serrations disposed adjacent respective cutting edges.Type: ApplicationFiled: March 11, 2011Publication date: September 13, 2012Applicant: Sandvik Intellectual Property ABInventors: Brian D. Hoefler, Yevgeny Kocherovsky
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Patent number: 8157487Abstract: 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: GrantFiled: June 3, 2009Date of Patent: April 17, 2012Assignee: Iscar, Ltd.Inventors: Amir Satran, Alexander Bronshteyn, Alexander Koifman
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Patent number: 8109699Abstract: A boring bit has a head, a blade assembly and a blade. The head has a mounting recess and two holding protrusions. The mounting recess is formed in the head and has a restricting surface and a threaded hole. The holding protrusions are formed on the restricting surface and each has two oblique restricting faces. The blade assembly is attached to the head and has a mounting base. The mounting base is mounted in the mounting recess and has an inner surface, a through hole and a guiding channel. The inner surface abuts with the restricting surface. The through hole is formed through the mounting base and aligns with the threaded hole. The guiding channel is formed in the mounting base, is mounted around the holding protrusions and has two abutting surfaces abutting the oblique restricting faces of the holding protrusions. The blade is detachably mounted on the blade assembly.Type: GrantFiled: July 13, 2009Date of Patent: February 7, 2012Inventor: Chin-Chiu Chen
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Patent number: 8087852Abstract: A shank has a mount reference surface formed with a mount seat having a mount seat surface inclined at a given inclined angle ?. A diamond raw material is held on the shank in an attitude such that a first bottom surface thereof is in tight contact with the mount seat surface, and a first apex is protruded forward nearly along a centerline of the shank. A portion of the first apex, protruding from the mount reference surface, is ground and removed as a given inclined angle ?. This causes a surface or its vicinity (in a value less thank approximately ±1°) to be formed as a raked face. The first bottom surface of the diamond raw material is held intact in tight contact with the mount seat surface to be integrally bonded thereto by active metal brazing, easily ensuring an increased bonding surface area to easily obtain increased bonding strength.Type: GrantFiled: October 5, 2007Date of Patent: January 3, 2012Assignees: OSG Corporation, Nissin Diamond Tool Mfg. Co., Ltd.Inventors: Harukazu Muraki, Youichiro Shimoda
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Patent number: 8079785Abstract: A tool holder assembly that includes a tool holder member adapted to be secured to a machine tool and a cutting insert support/clamp for clamping and supporting a cutting insert. The support/clamp member includes a plurality of serrations that are engageable with complementally formed serrations on the tool holder whereby a tight fitting engagement is achieved using removable fasteners. The support/clamp includes a clamping arm elastically movable towards and away from a support base and a clamping block connected to the connecting arm adapted to receive clamping forces from a threaded clamping bolt. The clamping bolt defines a force applying surface located in a first plane whereas the clamping block defines a force receiving surface located in a second plane, the first and second planes located at a diverging angle with respect to each other. The clamping block includes an edge portion engageable with a step on the tool holder that is spaced from the clamping arm.Type: GrantFiled: February 28, 2007Date of Patent: December 20, 2011Assignee: Kennametal Inc.Inventor: Roger Nicholas
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Publication number: 20110293382Abstract: A multi-grooving tool holder for holding cutting members seated in a side-by-side formation in a clamping portion of the holder. The clamping portion includes an upper clamp and a lower clamp and an elastic member is located in one of the upper and lower clamps. When cutting members are assembled in the clamping portion, the elastic member engages the cutting members and aligns each cutting member independently, by applying a force, and consequently a moment on the cutting members.Type: ApplicationFiled: May 25, 2011Publication date: December 1, 2011Applicant: Iscar, ltd.Inventor: Sergey Chistyakov
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Patent number: 8007207Abstract: A cutting tool includes a cutting insert, the insert including a cutting edge. The cutting tool also includes a cassette including an insert clamp for clamping the insert relative to an abutment surface of the cassette, and a generally cylindrical base portion. The cutting tool also includes a tool holder body, the tool holder body having a cylindrical opening in which the base portion of the cassette is disposed. A cassette clamp including a wedge is provided for clamping the cassette relative to the tool holder body. The cutting edge extends beyond a periphery of the tool holder body when the insert is clamped relative to the abutment surface of the cassette and the cassette is clamped relative to the tool holder body.Type: GrantFiled: March 31, 2008Date of Patent: August 30, 2011Assignee: Seco Tools ABInventor: Lilian Rimet
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Publication number: 20110110732Abstract: A cutting tool assembly includes an exchangeable adapter releasably secured to a holder. The adapter is provided with a side plate. In a bottom view of the holder, a portion of a front surface of the holder adjacent a first side surface of the holder forms an internal acute angle ? with the first holder side surface and in a bottom view of the adapter, a rear surface of the adapter side plate forms the acute angle ? with an inner side surface of the adapter.Type: ApplicationFiled: November 3, 2010Publication date: May 12, 2011Applicant: Iscar, Ltd.Inventors: Moshe Elbaz, Nader Farraj, Yossi Abrahami
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Publication number: 20110097165Abstract: A cutting tool for machining metallic materials has at least one cutting portion having a cartridge and a cartridge pocket for mounting cutting inserts to the cutting tool. The cartridge pocket has a top surface, a rear supporting surface and a bottom supporting surface. The top surface of the cartridge pocket has one or more serrated projecting portions. The cartridge has an insert pocket, a top surface, a first side surface and a bottom surface. The insert pocket of the cartridge receives a cutting insert. The top surface of the cartridge has one or more outwardly sloped surfaces and one or more inwardly sloped surfaces. The outwardly sloped surfaces mate with the serrated projecting portions. The inwardly sloped surfaces have a gap with respect to the projecting portions of the cartridge pocket.Type: ApplicationFiled: June 13, 2008Publication date: April 28, 2011Applicant: TaeguTec LtdInventors: Chang Hee Choi, Chang Gyu Park
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Publication number: 20110097164Abstract: A cutting insert has a top surface and a bottom surface having a parallelogram shape, and four side surfaces connecting the top and bottom surfaces. One or more primary cutting edges are formed at intersections between the top and bottom surfaces and two opposing side surfaces. Secondary cutting edges are formed at intersections between the top and bottom surfaces and two other opposing side surfaces. The primary cutting edge forms a first angle with respect to a median plane parallel to the top and bottom surfaces. The secondary cutting edge forms a second angle with respect to the median plane. The top and bottom surfaces have a mounting surface and a rack surface, wherein the rack surface extends inwardly from the cutting edge toward the median plane. The top and bottom surfaces of the cutting insert have mirror symmetry with respect to the median plane.Type: ApplicationFiled: June 13, 2008Publication date: April 28, 2011Applicant: TeaguTec, Ltd.Inventors: Chang Hee Choi, Chang Gyu Park
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Patent number: 7857554Abstract: The present invention concerns a system for fixing a cutting head to an adapter for a machine tool. The cutting head includes a first linear flange, a second linear flange substantially parallel to the first linear flange and a unit for holding a cutting bit. A holding jaw is provided for being fixed to the adapter and for engagement with at least one of the linear flanges on the cutting head, and a clamping device for clamping the at least one holding jaw between the at least one flange of the cutting head and the adapter. At least one further clamping device is connected to the adapter for engagement with the second or the linear flanges. Furthermore a cutting head and an adapter is defined.Type: GrantFiled: July 15, 2005Date of Patent: December 28, 2010Assignee: Teeness ASAInventors: Martin Sæterbø, Anders Digernes, Per Bjørvik
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Patent number: 7857555Abstract: A double-sided indexable cutting bit has the basic shape of a prism with cutting edges along a part of the intersection lines of the peripherally extending faces with the upper and lower faces and no cutting edges at another part of the intersection lines of side faces with the upper and lower faces. An indexable bit holder has a first support face for supporting an indexable cutting bit. In respect of the indexable cutting bit, in plan view on to the upper or lower face, at least a part of the side faces respectively has at least one respective concave recess that is adapted to receive a support element. In respect of the indexable bit holder, two support elements extend from oppositely disposed portions of the support face substantially perpendicularly to the first support face, which support elements define respective further second and third support faces that are perpendicular to the first support face and that face towards each other.Type: GrantFiled: February 9, 2006Date of Patent: December 28, 2010Assignee: Sandvik Intellectual Property ABInventor: Günther Wermeister
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Publication number: 20100322722Abstract: A combinative cutter includes a holder, a shank, a blade and at least two screws. The holder includes an eccentric bore defined at an end and at least two screw holes in communication with the eccentric bore. The shank is inserted in the eccentric bore and formed with a planar face. The blade is attached to an end of the shank extending beyond the holder. The screws are driven through the screw holes and abutted against the planar face to keep the shank in the eccentric bore.Type: ApplicationFiled: June 13, 2008Publication date: December 23, 2010Applicant: YING-FAN ENTERPRISE CO., LTD.Inventor: Kuo-Chi Lin
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Publication number: 20100254774Abstract: A cutting tool assembly for boring and internal grooving operations includes a tool head having a removably secured cutting insert at a forward insert receiving end and a rear mating end with a male or female type tool holder coupler in the form of an engagement protrusion or cutting holder receiving pocket. The tool head is fixed to a tool holder with a front mating end having a female or male tool head coupler in the form of a tool head receiving pocket or engagement protrusion. Following assembly, at least three abutting wall surfaces and an adjacent support surface of the tool holder coupler are in contact with at least three non-coplanar abutment surfaces and an adjacent supporting surface of the tool head coupler, respectively, and a fastening screw member extends through a through bore in the tool holder coupler engaging a threaded screw bore in the tool head coupler.Type: ApplicationFiled: March 31, 2010Publication date: October 7, 2010Applicant: Iscar, Ltd.Inventor: Gil Hecht
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Patent number: 7785045Abstract: The present invention relates to cutting tools with cutting inserts and, more particularly, to cutting tools with cutting inserts that have mounting recesses. The cutting insert includes a body having a mounting hole having an axis extending therethrough, and a surface portion in the mounting hole. The surface portion is substantially circular when viewed in a direction of the axis and is non-parallel to the axis and including at least two contact points disposed at a lesser distance from the axis than a region between the at least two contact points. A cutting tool is also disclosed.Type: GrantFiled: February 5, 2007Date of Patent: August 31, 2010Assignee: Seco Tools ABInventor: Kent Viol
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Patent number: 7780380Abstract: An insert-indexable tool includes a holder and a head member having an insert mount seat by which an insert is to be held. The head member includes a first mount face and a second mount face that intersect each other from a view facing toward the cutting face in a state in which the insert is held by the insert mount seat. The holder includes a first receiving face abutting the first mount face and a second receiving face abutting the second mount face. The first receiving face and the second receiving face are respectively provided with a first fixing threaded hole and a second fixing threaded hole into which fixing screws are inserted into the first mount face and the second mount face. The first fixing threaded hole and the second fixing threaded hole are located so that the fixing screws do not intersect each other.Type: GrantFiled: February 28, 2007Date of Patent: August 24, 2010Assignee: Mitsubishi Materials CorporationInventors: Hidehiko Nagaya, Norio Aso, Shoichiro Watanabe, Yasuharu Imai, Kouichi Kageyama
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Publication number: 20100189520Abstract: A clamping mechanism includes a male portion and a female portion. The male portion has a forwardly extending locking protrusion, and an alignment protrusion extending forwardly of the locking protrusion. A rear of the female portion has a forwardly extending locking bore and an alignment bore extending forwardly from a front end of the locking bore. The locking bore has an insertion bore portion which merges with a gripping bore portion. The insertion bore portion has an insertion bore axis while the gripping bore portion has a gripping bore axis that is spaced apart by a non-zero first distance from the insertion bore axis. In a clamped position, the alignment protrusion abuts a portion of the alignment bore and the locking protrusion abuts the gripping bore portion along a gripping angular extension, thereby forming a circumferential interference fit.Type: ApplicationFiled: January 15, 2010Publication date: July 29, 2010Applicant: Iscar, Ltd.Inventor: Hanoch GUY
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Patent number: 7758286Abstract: An insert-indexable tool includes a holder and a head member having an insert mount seat for clamping an insert. The head member includes a first jaw having a clamping face and a second jaw having a base face, the clamping face and the base face opposing each other to provide an insert mount seat. A clamping screw having a shaft portion and a pressing portion is disposed in a distal portion of the holder and is inclined with respect to an extending direction of the insert mount seat to extend gradually toward an inside of the holder. The holder is provided with a threaded hole engageable with the shaft portion of the clamping screw. The first jaw is provided with a spot facing accommodating the pressing portion of the clamping screw, and a center axis of the spot facing and an axis of threaded hole obliquely intersect each other.Type: GrantFiled: March 28, 2007Date of Patent: July 20, 2010Assignee: Mitsubishi Materials CorporationInventors: Hidehiko Nagaya, Norio Aso, Yasuharu Imai
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Publication number: 20100135736Abstract: A tool holder for clamping an insert holder has a main block, two clamping members and a single adjustment member. The main block has a longitudinal side surface with a longitudinal groove with upper and lower walls. The two clamping members include mirror symmetrical left and right clamping members interfacing with two inclined non-parallel planar ramping surfaces of the lower wall of the longitudinal groove. A blade-shaped insert holder is mounted in the longitudinal groove on the two clamping members. The adjustment member interfaces with the two clamping members, and when rotated causes each clamping member to move up its respective non-parallel planar ramping surface, decreasing the distance between the two clamping members and the upper wall of the longitudinal groove until a clamping force is uniformly applied between the insert holder and the upper wall of the longitudinal groove.Type: ApplicationFiled: November 5, 2009Publication date: June 3, 2010Applicant: Iscar, Ltd.Inventor: Gil Hecht
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Publication number: 20100124467Abstract: An auger bit includes a shaft having a central axis, a cutting insert mounted to said shaft, and a feed screw that is separate from the cutting insert and which is mounted to the shaft. The cutting insert and the feed screw are engaged with each other. A single locking member, such as a set screw, secures the feed screw member to the shaft, and thereby secures the cutting insert to the shaft. If the feed screw or the cutting insert become worn, feed screw or the cutting insert can be replaced.Type: ApplicationFiled: November 19, 2008Publication date: May 20, 2010Inventors: WILLIAM NORDLIN, PETER CZYZEWSKI
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Patent number: 7703359Abstract: A cutting tool includes two parts releasably interconnectable via serration surfaces which are mechanically engageable in each other. At least one of the parts is composed of a first body and a supplemental body on which the serration surface of the one part is formed, and which via a permanent joint is stiffly united to the first body. The permanent joint can be established by laser-welding a shim disposed between the first body and the supplemental body.Type: GrantFiled: October 15, 2004Date of Patent: April 27, 2010Assignee: Sandvik Intellectual Property ABInventor: Kjell Englund
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Patent number: 7641422Abstract: A cutting tool for parting and grooving operations of the kind including a coupling part, which is intended for mounting the cutting tool in a machine tool, and a tool head detachably connected to the coupling part. The tool head includes a basic holder part and, joined to the basic holder part, a blade part, in front portion of which an insert pocket is formed, in which a cutting insert is fastenable. The cutting tool also includes means for supplying cooling agent to the cutting insert. The cooling agent supplying means includes a tube member, which is mounted in a recess, which is transverse to the longitudinal direction of the blade part and arranged in the tool head. The tube member has an inlet for connection to a cooling agent source and an outlet for leading the cooling agent in a direction towards the cutting insert.Type: GrantFiled: February 22, 2005Date of Patent: January 5, 2010Assignee: Sandvik Intellectual Property ABInventors: Erik Berminge, Per Hansson
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Patent number: 7607867Abstract: A tool holding system has a tool holder including a seat and a clamping device having a clamping end aligned with a surface of the seat, a shim mounted in the seat of the tool holder and including a receiving surface oriented to open toward the clamping end of the clamping device, and a cutting insert mounted in contact with the receiving surface. The cutting insert has a plurality of cutting edges arranged around a periphery of a first face and a plurality of radially oriented features on a mating face in contact with the receiving surface. The receiving surface has corresponding features to that of the mating face of the cutting insert. A radius containing one of the plurality of radially oriented features forms an acute angle, an obtuse angle or a right angle to a radius containing a second of the plurality of radially oriented features.Type: GrantFiled: December 15, 2006Date of Patent: October 27, 2009Assignee: Sandvik Intellectual Property ABInventor: Lloyd Ray Benson
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Patent number: 7597508Abstract: The disclosure provides a cutting tool which may utilize the manner in which a cutting insert is supported therein to better retain the cutting insert. The disclosure also provides a method of assembling the cutting insert in the cutting tool in a manner which may increase the cutting accuracy of the cutting tool.Type: GrantFiled: March 16, 2007Date of Patent: October 6, 2009Assignee: Iscar, Ltd.Inventor: Gil Hecht
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Patent number: 7597510Abstract: An indexable cutting insert has at least first and second cutting edges and first and second edge-location surfaces associated with the first and second cutting edges, respectively. The insert-manufacturing procedure includes forming the first edge-location surface with reference to the first cutting edge, and then forming the second edge-location surface with reference to the second cutting edge. There results an indexable cutting insert having at least two spaced-apart chip-removing cutting edges and a plurality of location surfaces adapted to engage a base body for determining the spatial positions of respective cutting edges, wherein each location surface determines the spatial position of no more than one of the cutting edges.Type: GrantFiled: July 10, 2007Date of Patent: October 6, 2009Assignee: Sandvik Intellectual Property AktiebolagInventor: Göran Lundvall
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Patent number: 7578639Abstract: A tool for chip-removing machining includes a holder on which in indexible cutting insert is mounted. The holder includes a first base surface on which a plurality of male parts are disposed to define an insert seat. The insert includes generally parallel second and third base surfaces, each having a plurality of female parts disposed therein. The insert is invertible such that the female parts of one of the second and third base surfaces receive respective male parts of the holder. A fastener secures the insert on the seat, with the male parts tightly fitted in the female parts. The male parts are flexible relative to the first base surface to ensure a firm abutment of the male parts with surfaces of respective female parts.Type: GrantFiled: September 21, 2007Date of Patent: August 25, 2009Assignee: Sandvik Intellectual Property ABInventors: Jörgen Wiman, Kjell Englund
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Patent number: 7568865Abstract: The thread forming tool assembly includes a steel holder block, a carbide tool and a threaded fastener. The steel holder block has block top, bottom, first side, second side, base end and a carbide tool engaging end. A tool engaging end, of the holder block includes a first holder tool engaging surface and a second holder tool engaging surface that diverge from each other. A carbide tool has a first holder engaging surface that engages the first holder tool engaging surface and a second holder engaging surface that engages the second holder tool engaging surface. Thread forming exerts forces on the carbide tool that urge the first and second holder engaging surfaces toward engagement with the tool engaging end of the holder block.Type: GrantFiled: September 12, 2005Date of Patent: August 4, 2009Inventors: John T. Ketterer, Ronald L. Champagne, Wallace G. Wojtaszek, Allen A. McBride
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Publication number: 20090087268Abstract: In a tool holder system having a base support plate (1), from which a locating part (3) extends in the direction of a holder axis (5) for connection to a machine tool, in particular, a lathe, having a tool support plate (9), to which a cutting tool (43) can be attached via an intermediate piece (35), and having an adjustable guide (11) for setting the position of the two plates (1 and 9) relative to one another, the intermediate piece (35) laterally adjoins the tool support plate (9) and extends along both plates (1) and (9).Type: ApplicationFiled: May 16, 2006Publication date: April 2, 2009Applicant: Hartmetall-Werkzeugfabrik Paul Horn GMBHInventors: Hans Schäfer, Heinz Thurau
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Patent number: 7510354Abstract: The invention relates to a cutting tool including a basic body and a cutting insert detachably connected to the basic body via an interface, which includes a pair of co-operating connecting surfaces in which engagement means are included, which may be in the form of knobs and seatings. A knob and a co-operating seating have a rotationally symmetrical, conical shape to prevent translation of the cutting insert in the plane of the interface. Another knob ensures that the cutting insert cannot be rotated in relation to the conical knob. Simultaneously, ample bearing surfaces abut against co-operating support surfaces in a connecting surface. In such a way, the cutting insert is fixed in a stable, non-overdetermined position in the basic body. Furthermore, the invention relates to a cutting insert as such.Type: GrantFiled: April 13, 2007Date of Patent: March 31, 2009Assignee: Sandvik Intellectual Property ABInventors: Claes Andersson, Kjell Englund, Daniel Edler
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Publication number: 20080253847Abstract: An adjustable threading tool assembly. A cutting insert holder is adjustably held in a pocket in a toolholder. The cutting angle of the insert can be set by selecting a precision ground washer that sets the position of a retaining bolt that holds the insert in the pocket such that the desired angle is provided.Type: ApplicationFiled: August 12, 2005Publication date: October 16, 2008Applicant: MANCHESTER TOOL COMPANYInventor: Roger Nicholas
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Patent number: 7422395Abstract: A tool holder includes a main part, and an angular pressing member; the main part has a fitting portion at one end, and holding portion adjacent to a front edge of and lower than the fitting portion; the angular pressing member has a recessed holding portion, which has a receiving hole, and a protruding portion therein; a pad is screwed onto the holding portion, and a tool is fixed on the pad to be closely in touch with the front edge of the fitting portion; the angular pressing member is screwed onto the fitting portion such that the recessed holding portion fits over a rear portion of the tool, and the protruding portion is pressed against an upper side of the tool, and an edge of the tool closely touches an edge of the recessed holding portion, and a rear tip of the tool is received in the receiving hole.Type: GrantFiled: November 15, 2006Date of Patent: September 9, 2008Inventor: Hsien-Jen Huang
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Patent number: 7419337Abstract: A parting blade having a flat, elongate body, which is delimited by two opposite side surfaces and has two opposite longitudinal edges which are mutually parallel and present chamfered surfaces for wedging the body in a holder, and which includes at least one insert seat formed adjacent to an end, the position of which seat in relation to a longitudinal edge determines the tip height of a turning insert mounted in the insert seat. An attachment part is formed on one of the side surfaces of the blade body. The attachment part is shorter and thinner than the proper blade body and has two opposite longitudinal edges which are mutually parallel and present chamfered surfaces for wedging the attachment part in another holder. In this way, the parting blade can be formed for robust, wide turning inserts and in spite of this be mounted in holders intended for considerably thinner parting blades.Type: GrantFiled: May 1, 2006Date of Patent: September 2, 2008Assignee: Sandvik Intellectual Property ABInventor: Erik Berminge
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Patent number: 7347650Abstract: A cutting tool for chip removing including a cutting insert provided with a through hole, a J shaped locking pin actuated by a locking screw, and a tool holder having means to receive the cutting insert, the locking screw and the locking pin. The cutting insert is positioned in place by passing its hole over the clamping head of the locking pin and is securely locked into the tool holder's receiving pocket in both horizontally and vertically directions. For some embodiments the insert is clamped due to a simultaneous tilting and downward sliding movement of the locking pin while for other embodiments the insert is clamped due to both a horizontal and a vertical force which are components of a pulling force applied by the locking pin. A shim can be installed by passing its hole over the lower end of the locking pin and it is secured in place by the means of a collar that is provided by the locking pin.Type: GrantFiled: October 17, 2005Date of Patent: March 25, 2008Inventor: Vichente Tipu
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Patent number: 7300232Abstract: A tool for chip-removing machining includes a holder on which in indexible cutting insert is mounted. The holder includes a first base surface on which a plurality of male parts are disposed to define an insert seat. The insert includes generally parallel second and third base surfaces, each having a plurality of female parts disposed therein. The insert is invertible such that the female parts of one of the second and third base surfaces receive respective male parts of the holder. A fastener secures the insert on the seat, with the male parts tightly fitted in the female parts. The male parts are flexible relative to the first base surface to ensure a firm abutment of the male parts with surfaces of respective female parts.Type: GrantFiled: November 23, 2004Date of Patent: November 27, 2007Assignee: Sandvik Intellectual Property ABInventors: Jörgen Wiman, Kjell Englund
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Patent number: 7281885Abstract: A high-speed milling cutter has a tool parent body and one or more plate-shaped cutting inserts with a convex, approximately arc-shaped cutting edge. The insert(s) is/are fastened in an insert seat of the tool parent body. Mating elements with mutual contact surfaces for absorbing the centrifugal forces occurring during use are provided in each case between insert seat and cutting insert. The contact surface of the first mating element is designed in the shape of a circular arc, approximately concentrically to the cutting edge. The contact surface of the second mating element is likewise designed in the shape of a circular arc, approximately concentrically to the cutting edge, or consists of at least two contact zones which lie on an imaginary circular arc, approximately concentrically to the cutting edge, the contact surface or the imaginary circular arc coinciding with the contact surface of the first mating element.Type: GrantFiled: August 7, 2006Date of Patent: October 16, 2007Assignee: Ceratizit Austria Gesellschaft m.b.HInventors: Peter Obkircher, Helmut Male
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Patent number: 7255518Abstract: A tool body includes an insert seat for receiving a cutting insert for chip-removing machining. The insert seat includes a bottom surface and support surfaces upstanding from the bottom surface. Each support surface comprises at least three ridges separated by grooves. Each groove has a depth greater than zero and no greater than 0.015 mm. An insert mounted in the seat by a screw has a center hole whose axis is offset from the axis of a threaded hole of the body in which the screw is connected. That offset distance creates a prestress of the insert toward the ridges. The depth of the grooves (i.e., the height of the ridges) is substantially less than the distance of the offset.Type: GrantFiled: August 26, 2005Date of Patent: August 14, 2007Assignee: Sandvik Intellectual Property ABInventors: Lars-Gunnar Wallström, Lennart Wihlborg
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Patent number: 7240593Abstract: A holder (20) for a cutting insert (12), which includes a head (22) with a pocket (24) for holding the cutting insert and a bar device (26) for supporting the head, allows the use of a removable head for a miniature head and bar device that fits into a small hole in a workpiece, and allows rapid and easy replacement of the head. The head has a front part (42) of small height for holding the cutting insert and has a taller rear part (40) of the same height as the bar device. The head rear part has a screw-receiving hole (56) that extends at a downward-rearward incline (A) into a corresponding threaded hole (62) at the front of the bar device. The head and bar device respectively have a recess (70) and a projection (74) that lie around the screw-receiving holes and that align the head and bar device. A coolant passageway system (92) in the bar device provides coolant for both right and left hand heads.Type: GrantFiled: April 19, 2005Date of Patent: July 10, 2007Inventor: Roger Little
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Patent number: 7217068Abstract: Tool holder for cutting bodies (5) may be mounted on a base holder (15) by a fixing device (41), and a cooperating stop extending in a plane in the direction of the tool holder. A positive positional fixing against any movement along the three axes of the spatial coordinate system may be obtained. The planar stop is divided into planar sections (19, 21) by a machined recess (23). The recess (23) forms a seat for housing a projecting matching body (25) on the base holder (15). The walls of the recess (23) form planar support surfaces (31, 33) for the matching body (25), which each define differing planes perpendicular to the stop, to resist displacement and torsional forces resulting from the cutting force into the matching body (25) of the base holder (15).Type: GrantFiled: August 21, 2002Date of Patent: May 15, 2007Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventor: Matthias Oettle
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Patent number: 7201545Abstract: The present invention relates to a tool, a cutting insert and a shim for cutting machining. The tool includes a holder for turning or milling, a shim and an indexable cutting insert. The shim has an upper side and the cutting insert has a lower side. The lower side includes protrusions, The cutting insert and the shim are provided to abut against each other in three points. The upper side of the shim includes recesses. The recesses are provided spaced from the projections.Type: GrantFiled: October 14, 2005Date of Patent: April 10, 2007Assignee: Seco Tools ABInventor: Christer Ejderklint
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Patent number: 7179021Abstract: A cutting insert holder for releasably clamping a quadrilateral cutting insert in a predetermined clamping position, the cutting insert having a through bore and a non-obtuse insert mounting corner. The cutting insert holder includes a clamping portion formed with a wedge supporting surface and a locking pin received in the through bore. A clamping wedge abuts the wedge supporting surface and has an insert receiving pocket with a pair of pocket side walls forming an insert receiving corner for receiving the insert mounting corner. In a top view of the base surface a normal to the wedge supporting surface passing through a center of the locking pin passes through a first pocket side wall of the pair of pocket side walls.Type: GrantFiled: June 20, 2005Date of Patent: February 20, 2007Assignee: Iscar Ltd.Inventor: Philip Shaheen
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Patent number: 7121768Abstract: The invention concerns a cutting head (13) to be secured in an adapter (9) in a machine tool for chip removing machining. The cutting head (13) comprises a flange with a first side creating a coupling surface (4) adapted for being secured to the adapter (9). On the opposite of the flange, it is situated an other side creating at least one surface (1A) with an outwards extending protrusion (8), with securing means adapted for securing a cutting insert (5) with at least one cutting edge. The weight of the cutting head (13) is reduced as compared to the strength of the cutting head (13), and the natural frequency of the cutting head (13) is thereby increased when this is secured to the adapter (9).Type: GrantFiled: January 15, 2002Date of Patent: October 17, 2006Assignee: Teeness ASAInventors: Trude Hole, Per Björvik, Pål Sollie, Knut S. Stokland
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Patent number: 7108212Abstract: A cutting tool holder, a cutting bit, and a retainer maintaining the cutting bit at a prescribed position relative to the tool holder. The cutting bit is received in a slot located in a first lateral surface that extends through the top surface. The retainer is received in an opening included in the first lateral surface that intercepts the slot. The retainer includes a planar tapered surface that contacts an upwardly and laterally facing oblique surface on a lower end of the cutting bit to hold the lower end of the cutting tool in contact with a lower surface of the slot.Type: GrantFiled: November 11, 2003Date of Patent: September 19, 2006Assignee: Keystone Engineering & Manufacturing CorporationInventor: Winchester E. Latham
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Patent number: 7011476Abstract: Small size insert and insert-blank apparatus for machine tools for grooving and turning have a body with generally parallel and opposing sides, and top and bottom surfaces which have at least a portion thereof inclined from adjacent a first end to the opposite end, and two heads extending from opposite ends of the body, each head having a rear end with which the body forms portions adapted to serve as stops to prevent rearward movement with respect to the machine tool when use. The body of the apparatus is adapted to be mounted in a toolholder having a nest or pocket having an inclined bottom wall which cooperates with the inclined portion of the bottom surface of the apparatus, and a clamp secured to the toolholder having a finger portion cooperative with the inclined portion of the top surface of the apparatus to resist forces on the apparatus during turning.Type: GrantFiled: August 16, 2004Date of Patent: March 14, 2006Assignee: Kaiser Tool Company, Inc.Inventors: Ken King, Doug DeWitt, Jeff Frank, Eric Bustos, Dave Coleman
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Patent number: 6974282Abstract: A toolholder for a small-size insert having a shoulder for use with a machine tool for grooving, boring and turning has a substantially planar surface portion in an end portion which defines at least one insert-receiving recess extending inwardly into the body of the toolholder, and the end portion defining at least one abutment surface against which the shoulder of the insert may abut to readily orient and rapidly and readily secure the insert in the toolholder.Type: GrantFiled: August 14, 2002Date of Patent: December 13, 2005Assignee: Kaiser Tool CompanyInventors: Ken King, Doug DeWitt, Jeff Frank, Eric Bustos, Dave Coleman
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Patent number: 6971823Abstract: A. cutting tool for metal cutting operations employing detachable cutting insert secured to cartridges. The cartridges have a clamping portion that is resiliently transformable between a normally non-expanded state and a biased expanded state by means of a clamping screw received in a through bore in the cartridge. The clamping portion is slidably insertable into the cartridge pocket when in the normally non-expanded state, and is securely retained in the cartridge pocket when in the biased expanded state.Type: GrantFiled: February 13, 2004Date of Patent: December 6, 2005Assignee: Iscar Ltd.Inventors: Amir Satran, Talal Qeys
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Patent number: 6969218Abstract: The profile turning tool is used for rough-turning and dressing circumferential and flat surfaces, in particular of workpieces made of light metals. It consists of a holder (10) with a receiver (16) for a diamond cutting head (18) as well as a claw (20), which is embodied as a chip breaker, engages a longitudinal groove (26) in the holder (10) and braces the cutting head (18) by means of a tightening screw (22). The groove (26) is located directly behind the cutting head (18). In longitudinal section, its base has an arcuate, concave shape and represents a pivot bearing for the claw (20) that has a correspondingly shaped underside and is guided on the lateral walls of the groove (26). The tightening screw (22) extends in front of the center of the arc with play through a hole in the claw (20).Type: GrantFiled: March 12, 2002Date of Patent: November 29, 2005Assignee: Jakob Lach GmbH & Co. KGInventors: Horst Lach, Eugen Maurer
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Patent number: 6966728Abstract: A toolholder assembly for releasably holding a toolholder at a selected radial location within the toolholder assembly. The toolholder assembly includes a tool support member, an actuating bolt and an actuating centering nut. Rotation of the actuating bolt in a locking direction centers the actuating centering nut, actuating bolt and the toolholder with respect to the radial axis of a bore within the tool support member.Type: GrantFiled: June 8, 2004Date of Patent: November 22, 2005Assignee: Kennametal Inc.Inventor: Robert A. Erickson
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Patent number: 6916137Abstract: A tool holder is held in a support body by a clamp which is wedged between the support body and the tool holder. The clamp is secured in the support body by a threaded fastener that extends through a through-hole formed in the clamp. The fastener carries a flange which pulls the clamp out of wedging relationship when the fastener is unscrewed. A spring disposed in the through-hole functions to keep the clamp pressed against the tool holder even after the clamp has been loosened, in order to keep the tool holder from falling out of the support body. A stopper is disposed behind the tool holder to locate the tool holder in a desired cutting position and to keep the tool holder pressed against an abutment surface of the support body.Type: GrantFiled: August 16, 2004Date of Patent: July 12, 2005Assignee: Sandvik ABInventor: Akio Shiraiwa