Patents Assigned to Hartmetall-Werkzeugfabrik Paul Horn GmbH
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Patent number: 9999932Abstract: A tool for machining a workpiece. The tool comprises a first tool component which comprises a first internal coolant bore and, on a first face side end, a first connection interface, wherein the first connection interface comprises a first end face for attaching a joining material as well as an elevation which protrudes from the first end face, wherein a first coolant outlet of the first internal coolant bore is arranged on the elevation. In addition, the tool comprises a second tool component which comprises a second internal coolant bore and, on a second face side end, a second connection interface, wherein the second connection interface comprises a second end face for attaching the joining material as well as a recess provided in the second end face, wherein a second coolant outlet of the second internal coolant bore is arranged in the recess.Type: GrantFiled: October 25, 2016Date of Patent: June 19, 2018Assignee: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBHInventors: Matthias Luik, Christoph Hamm
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Patent number: 9937569Abstract: A cutting insert for a tool for machining a workpiece, wherein the cutting insert has a 180° rotational symmetry about a bore axis extending perpendicularly and centrally through two opposing, identical base surfaces of the cutting insert, and has two identical parts which are connected along a center plane, wherein said center plane extends orthogonally to the bore axis and has the same distance from each of the two base surfaces, wherein each part has two identical mutually opposite main sides and two identical mutually opposite secondary sides, wherein each main side has a rectilinear main cutting edge extending parallel to the center plane, and each secondary side has a planar bearing surface extending orthogonally to the center plane, wherein the two main cutting edges of each part extend parallel to one another and transversely to the two main cutting edges of the respective other part, and wherein the two main cutting edges of each part extend parallel to the two bearing surfaces of the respective otheType: GrantFiled: April 19, 2017Date of Patent: April 10, 2018Assignee: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBHInventor: Christian Stark
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Patent number: 9925608Abstract: A die stock comprising a holder, which is symmetrical to a centric holder longitudinal axis, wherein the holder has a plurality of receiving grooves each of which is configured for receiving a cutting insert and a clamping wedge, each of the receiving grooves extending from a first end face of the holder in the axial direction, the first end face running transversely to the axial direction, and wherein each of the receiving grooves extends from an inner side of the holder in a radial direction, the inner side facing toward the holder longitudinal axis. The die stock further comprises a plurality of cutting inserts, wherein each cutting insert has, on a front side that faces substantially toward the holder longitudinal axis, at least one cutting edge. The die stock further comprises a plurality of clamping wedges arranged detachably in the receiving grooves.Type: GrantFiled: September 23, 2015Date of Patent: March 27, 2018Assignee: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBHInventor: Ruediger Voege
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Patent number: 9802259Abstract: A tool system for machining a workpiece is provided having a cylinder-shaped retaining shank that has a cutting head holder on an end surface facing the workpiece, a drive mount on an end surface facing the drive, a cutting head having at least one cutting edge, a cutting head hub corresponding to the cutting head holder on the retaining shank, a tool coupling with a tool interface, and a coupling hub corresponding to the drive mount. The coupling hub or the cutting head hub have elevated areas, with contact surfaces, distributed in circumferential and longitudinal directions of the coupling hub or the cutting head hub. The contact surfaces make contact on support surfaces on the drive mount or on the cutting head holder on the retaining shank. The drive mount or the cutting head holder is permanently connected to the coupling hub or the cutting head hub by a joining material in intermediate spaces between the elevations.Type: GrantFiled: April 9, 2014Date of Patent: October 31, 2017Assignee: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBHInventors: Matthias Oettle, Sebastian Schetter
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Patent number: 9700945Abstract: A cutting tool comprising a holder (12) having a slot-shaped, arcuate receptacle (16), with respectively a lower and an upper bearing surface (36, 38) attached to rigid clamping jaws (18, 20) of the holder (12), for the reception (16) of a cutting insert, (14) and a cutting insert (14) having an arcuate shank (22) with lower and upper locating face (32, 34), which cutting insert is arranged exchangeably in the receptacle (16), and having a cutting head (24) with cutting edge (26), which cutting head is disposed on a workpiece-side end (44) of the shank (22), wherein the arcuate receptacle (16) and the arcuate shank (22), measured respectively on the lower bearing surface (36) of the receptacle (16) and the lower locating face (32) of the cutting insert (14), extend respectively over at least 90°, wherein the receptacle (16) extends over a larger angular range than the shank (22) of the cutting insert (14), and wherein the shank (22) is held in the receptacle (16) such that the holder-side end (28) of the shanType: GrantFiled: May 18, 2015Date of Patent: July 11, 2017Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventor: Ruediger Voege
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Patent number: 9662722Abstract: The disclosure relates to a cutting insert for a tool for machining a workpiece, comprising: two identical mutually opposite base surfaces, wherein at least a part of each base surface is orthogonal to a z-axis of the cutting insert, two identical mutually opposite main side surfaces which extend between the two base surfaces, wherein at least a part of each main side surface is oriented orthogonally to an x-axis of the cutting insert, and two identical mutually opposite secondary side surfaces which extend between the two base surfaces, wherein at least a part of each secondary side surface is oriented orthogonally to a y-axis of the cutting insert, wherein the x-, y- and z-axes are main axes of the cutting insert that are oriented orthogonally to one another, wherein between each one of the base surfaces and each one of the main side surfaces a main cutting edge is arranged, and wherein each main side surface has two diagonally opposite first segmental cutting edges, wherein each first segmental cutting edgType: GrantFiled: March 13, 2015Date of Patent: May 30, 2017Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventor: Christian Stark
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Patent number: 9656333Abstract: A cutting insert for a tool for machining a workpiece, wherein the cutting insert has a 180° rotational symmetry about a bore axis extending perpendicularly and centrally through two opposing, identical base surfaces of the cutting insert, and has two identical parts which are connected along a center plane, wherein said center plane extends orthogonally to the bore axis and has the same distance from each of the two base surfaces, wherein each part has two identical mutually opposite main sides and two identical mutually opposite secondary sides, wherein each main side has a rectilinear main cutting edge extending parallel to the center plane, and each secondary side has a planar bearing surface extending orthogonally to the center plane, wherein the two main cutting edges of each part extend parallel to one another and transversely to the two main cutting edges of the respective other part, and wherein the two main cutting edges of each part extend parallel to the two bearing surfaces of the respective otheType: GrantFiled: March 10, 2015Date of Patent: May 23, 2017Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventor: Christian Stark
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Patent number: 9468976Abstract: A cutting device comprising a cutting insert and a holding part with a beam part, extending in a longitudinal direction, and a clamping head, which projects beyond an upper side of the holding part with a projection, wherein the projection is connected to a first of two clamping fingers which between them form a receiving pocket for receiving the cutting insert. A clamping gap is provided underneath the projection to allow the first clamping finger to be elastically movable. The clamping gap opens out into the receiving pocket and runs from an end face of the holding part that is facing the workpiece to be worked in the longitudinal direction up to the rear end of said holding part, which rear end is arranged in the transitional region between the clamping head and the beam part. A coolant and/or lubricant guide is provided for feeding coolant and/or lubricant to a coolant and/or lubricant outlet arranged in the projection.Type: GrantFiled: December 12, 2013Date of Patent: October 18, 2016Assignee: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBHInventor: Hans Schaefer
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Patent number: 9352402Abstract: A cutting tool for machining a workpiece. The cutting tool comprises a holder and at least two cutting inserts which are separated from each other by a spacer element. The cutting tool may be used to produce two or more bevels (and/or joints and/or grooves) at precisely defined spacings in only one operation. Through the use of spacer elements of different lengths, it is possible to produce bevels at different spacings. The spacer element preferably has an interface which comprises only radial contact surfaces, which run parallel to a longitudinal axis of the spacer element, and a substantially flat axial contact surface, which runs transverse to the longitudinal axis. The length of the spacer element can therefore be shortened on the rear side of the spacer element without destroying said interface.Type: GrantFiled: June 7, 2013Date of Patent: May 31, 2016Assignee: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBHInventors: Matthias Luik, Matthias Oettle
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Patent number: 9346103Abstract: A tool for machining a workpiece is presented. The tool has a cutting insert with at least one cutting edge, a holder having a shank, and a cutting insert receptacle, wherein the cutting insert receptacle is arranged in a region of a workpiece-side end face of the shank, and the cutting insert is disposed in the cutting insert receptacle. The holder has a coolant bore, which opens out into a plurality of coolant outlets. The plurality of coolant outlets are arranged on the workpiece-side end face of the shank, alongside the cutting insert receptacle, and are oriented such that coolant is discharged towards the cutting insert. At least some of the coolant outlets lie in a coolant outlet plane which runs parallel to and offset from a cutting insert plane running through the cutting insert receptacle, where the coolant outlet plane and the cutting insert plane run parallel to the longitudinal direction of the shank.Type: GrantFiled: September 26, 2013Date of Patent: May 24, 2016Assignees: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBH, ERNST GRAF GMBHInventors: Matthias Luik, Edgar Fuchs
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Patent number: 9272343Abstract: A tool for machining a workpiece, in particular a milling tool, is presented. The tool incorporates a shank which is drivable rotatably about a longitudinal axis and is fixable to a tool holding fixture. The tool further incorporates a plate holding fixture that is arranged on one end of the shank, a support plate having at least one internal thread, a cutting element with at least one cutting edge, and at least one fastening element which is provided with an external thread that is adapted to the at least one internal thread.Type: GrantFiled: March 13, 2013Date of Patent: March 1, 2016Assignee: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBHInventor: Ruediger Voege
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Publication number: 20140227047Abstract: According to the invention a tool system for machining a workpiece is recommended, having a cylinder-shaped retaining shank (12) that has a cutting head holder (16) on an end surface (14) facing the workpiece, a drive mount (20) on an end surface facing the drive (18), a cutting head (22) having at least one cutting edge (24), a cutting head hub (26) corresponding to the cutting head holder (16) on the retaining shank (12), a tool coupling (28) with a tool interface (30), and a coupling hub corresponding to the drive mount (20), wherein the coupling hub (32) and/or the cutting head hub (26) have elevated areas (34, 50) with contact surfaces (36, 52), wherein the elevated areas (34, 50) are distributed in an arrangement in both the circumferential (38) and longitudinal directions of the coupling hub (32) and/or the cutting head hub (26), wherein the contact surfaces (36, 52) make contact on support surfaces (42, 56) on the drive mount (20) and/or on the cutting head holder (16) on the retaining shank (12), andType: ApplicationFiled: April 9, 2014Publication date: August 14, 2014Applicant: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventors: Matthias OETTLE, Sebastian SCHETTER
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Patent number: 8764353Abstract: Embodiments of the invention relate to a reamer for machining a workpiece by chip removal. Embodiments of the reamer can incorporate a holder, having a receiving opening disposed on a workpiece-side end face and having an internal thread, a holder bore extending inside the holder in a longitudinal direction thereof and opening into the receiving opening, an exchangeable head, having a cutting-nose element having a plurality of cutting noses disposed in a distributed manner in a circumferential direction, an exchangeable-head shank having an external thread corresponding to the internal thread disposed in the receiving opening, a bearing contact element disposed between the cutting-nose element and the exchangeable-head shank and having a first bearing contact surface for bearing contact on a first support surface disposed on the workpiece-side end face, with an exchangeable-head bore corresponding to the holder bore extends through the exchangeable head in a longitudinal direction thereof.Type: GrantFiled: March 16, 2012Date of Patent: July 1, 2014Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventor: Matthias Oettle
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Patent number: 8747032Abstract: The present invention relates to a tool for machining a workpiece, comprising a tool body, a cutting tool and fastening means for fastening the cutting tool in an accommodating recess of the tool body, wherein the cutting tool has a cutting edge and a cutting tool through-bore, and wherein the tool body has a tool body through-bore opening into the accommodating recess.Type: GrantFiled: July 7, 2011Date of Patent: June 10, 2014Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventors: Matthias Oettle, Uli Ruoff
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Cutting insert for a cutting tool for machining by chip removal, in particular for high feed milling
Patent number: 8740509Abstract: The present invention relates to a cutting insert for a cutting tool for the chip-removing high feed milling machining of workpieces, the cutting tool having a holder with a seat for receiving the cutting insert, the cutting insert having at least one cutting edge lying in a covering surface. To achieve a higher feed speed and greater cutting depth, particularly during high feed milling, there is provision, according to the invention, whereby the cutting edge has in portions three different radii of curvature, a first portion having the smallest radius, a middle second portion adjoining it having the largest radius, and a third portion adjoining the latter having a medium radius lying between the smallest and the largest radius, and whereby a peripheral line, running through all the cutting edges, of the covering surface is exclusively convexly curved. The invention relates, furthermore, to a correspondingly configured holder and to a cutting tool.Type: GrantFiled: January 24, 2012Date of Patent: June 3, 2014Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventor: Matthias Luik -
Patent number: 8721235Abstract: The invention relates to a drilling tool with a base, having a central axis of rotation, and a drill bit, detachably connected to the base. The drill bit has a coupling part, which can be coupled with a coupling receptacle on the face of the base and has at least two convexly curved centring portions, which are arranged such that they are distributed over the circumference and engage with an exact fit in complementary concavely curved centring portions of the coupling receptacle. The coupling part has a complementary driver stop, meshing with a rotary driver of the coupling receptacle. It is claimed as novel that the centring portions of the coupling part and/or of the coupling receptacle have clamping surfaces, which run onto each other in the manner of a rotary wedge until the driver stop and the rotary driver come up against each other counter to a predetermined direction of rotation.Type: GrantFiled: July 16, 2008Date of Patent: May 13, 2014Assignees: Komet Group GmbH, Hartmetall-Werkzeugfabrik Paul Horn GmbHInventors: Uwe Kretzschmann, Rico Schneider, Henry Schuett, Matthias Luik, Matthias Oettle
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Publication number: 20140099168Abstract: A cutting device comprising a cutting insert and a holding part with a beam part, extending in a longitudinal direction, and a clamping head, which projects beyond an upper side of the holding part with a projection, wherein the projection is connected to a first of two clamping fingers which between them form a receiving pocket for receiving the cutting insert. A clamping gap is provided underneath the projection to allow the first clamping finger to be elastically movable. The clamping gap opens out into the receiving pocket and runs from an end face of the holding part that is facing the workpiece to be worked in the longitudinal direction up to the rear end of said holding part, which rear end is arranged in the transitional region between the clamping head and the beam part. A coolant and/or lubricant guide is provided for feeding coolant and/or lubricant to a coolant and/or lubricant outlet arranged in the projection.Type: ApplicationFiled: December 12, 2013Publication date: April 10, 2014Applicant: HARTMETAll-WERKZEUGFABRIK PAUL HORN GMBHInventor: HANS SCHAEFER
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Patent number: 8613575Abstract: The present invention relates to an indexable cutting insert which is provided with at least two bearing surfaces for securing to a holder, said at least two bearing surfaces being each subdivided into individual subsurfaces, wherein the at least two bearing surfaces, with respect to a center plane of the cutting insert, forms at least three edges in one half of said cutting insert, said edges bounding the subsurfaces for the formation of crowning, approximating to convexity, of the at least two bearing surfaces.Type: GrantFiled: October 9, 2009Date of Patent: December 24, 2013Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventors: Hans Schaefer, Peter Langer
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Patent number: 8534963Abstract: The invention relates to a tool for machining a workpiece, incorporating a holder having a locating opening arranged at the end face and a cutting head having at least one cutting element arranged on the workpiece-side end. Furthermore, the tool has a sleeve which is made substantially of carbide and which, with a first, holder-side end, is inserted in an accurately fitting manner into the locating opening of the holder, and the cutting head is arranged in or on the second, cutting-head-side end of said sleeve, and coupling means for coupling the holder, cutting head and sleeve.Type: GrantFiled: January 27, 2011Date of Patent: September 17, 2013Assignee: Hartmetall-Werkzeugfabrik Paul Horn GmbHInventor: Matthias Luik
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Publication number: 20130195568Abstract: A tool for machining a workpiece, in particular a milling tool, is presented. Said tool comprises a shank which is drivable rotatably about a longitudinal axis and is fixable to a tool holding fixture. It further comprises a plate holding fixture that is arranged on one end of the shank, a support plate having at least one internal thread, a cutting element with at least one cutting edge, and at least one fastening element which is provided with an external thread that is adapted to the at least one internal thread.Type: ApplicationFiled: March 13, 2013Publication date: August 1, 2013Applicant: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBHInventor: HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBH