| HARTMETALL-WERKZEUGFABRIK PAUL HORN GMBH Patent applications |
| Patent application number | Title | Published |
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| 20120009030 | Tool For Machining, In Particular Straight Turning Tool - 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. According to the invention, in order to provide a simple possibility of being able to change the cutting tool from both sides, depending on accessibility, the fastening means have a clamping bush provided with an internal thread and a clamping screw provided with an external thread corresponding with the internal thread of the clamping bush, the clamping screw is selectively either inserted through the cutting tool bore into the tool body bore and is screwed to the clamping bush or is inserted from the opposite side through the tool body bore into the cutting tool bore and is screwed to the clamping bush, wherein both ways of inserting of the clamping screw are enabled, and anti-rotation locking means are provided which prevent rotation of the clamping bush about the longitudinal axis thereof during the screwing-down and release by means of the clamping screw, wherein the anti-rotation locking means are formed by a tapered surface on the clamping hush and/or by a tapered surface on the clamping screw head, said tapered surfaces being adapted to at least part of the tool body bore and/or the cutting tool bore. | 01-12-2012 |
| 20110142556 | TOOL FOR MACHINING, IN PARTICULAR LONGITUDINAL TURNING TOOL - 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 a receiving recess of the tool body, the cutting tool having a cutting edge and a cutting-tool through-bore, and the tool body having a tool-body through-bore that opens into the receiving recess, wherein the fastening means comprises a clamping bushing that is provided with an internal thread, and comprises a clamping screw that is provided with an external thread corresponding to the internal thread of the clamping bushing, which are inserted into the cutting-tool bore or into the tool-body bore from opposing sides in order to fasten the cutting tool to the tool body, the clamping bushing is screwed directly to the clamping screw, irrespective of whether it is inserted into the cutting-tool bore or into the tool-body bore, and anti-rotation means are provided to prevent the clamping bushing from rotating about its longitudinal axis when being screwed and undone by means of the clamping screw. | 06-16-2011 |
| 20110123282 | TOOL FOR MACHINING A WORKPIECE - The invention relates to a tool for machining a workpiece, comprising 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. | 05-26-2011 |
| 20110058908 | HOLDER FOR A CHIP-REMOVING TOOL INSERT - The present invention relates to a holder for a machining tool insert, in particular a lancing or cutting insert, having an approximately beam-shaped cutter holder, a cavity formed inside the end thereof, which serves as a receiving pocket for the tool insert and is bounded by clamping jaws that define the clearance width of the receiving pocket, a slot extending with a first end to within the proximity of the inner edge of the receiving pocket so as to permit elastic pivotability of one of the clamping jaws, and having a clamping arrangement comprising an actuation member for producing a clamping force that acts within the region of the slot upon the pivotable clamping jaw. In order to attain improved absorption of transverse force components acting upon the pivotable clamping jaw, it is furthermore provided in said holder that the second end of the slot extends within the proximity of the lateral edge of the cutter holder, with an elastic connecting web that bridges the second end of the slot being disposed between the pivotable clamping jaw and the cutter holder. | 03-10-2011 |
| 20100104390 | BROACHING TOOL, IN PARTICULAR KEYWAY BROACHING TOOL - The invention relates to a broaching tool, in particular a keyway broaching tool, comprising a holder which defines a longitudinal axis and has a shank, extending in the longitudinal direction, as support for a cutting body which can be fixed in a seat of the shank by means of a clamping device. The seat has a passage which is at a distance from the free end of the shank and extends transversely to the longitudinal axis and the inside of which forms guide surfaces for bearing surfaces of the cutting body, which can be inserted into the passage in an insertion direction. An end-position limit for the inserted cutting body is formed on guide surfaces and on associated bearing surfaces. The clamping device produces a force component on the cutting body which presses the latter against the end-position limit. | 04-29-2010 |
| 20090196698 | TOOL SYSTEM - The present invention relates to a tool system, comprising: a holder comprising a supply device for cooling lubricant, a cutting tool which has a tool cutter and a fixing part, and a tensioning device which has a tension screw by means of which a tension force acting upon the cutting tool can be produced for the purpose of fixing the latter in position on the holder, wherein a support face is realized on the holder for direct bearing contact of the fixing part of the cutting tool that is pressed-on by the tensioning screw, and wherein there is constituted a fluid space which adjoins this support face, is delimited by wall parts of the bearing fixing part of the cutting tool and is fluidically connected to the supply device for cooling lubricant, and from which cooling lubricant can be passed on to the region of the main cutter via a channel which, provided in the cutting tool, comes from the adjoining wall of the fixing part. | 08-06-2009 |
| 20090185873 | TOOL SYSTEM - A tool system comprising a holder and a cutting tool having a tool cutting edge and a fixing part, wherein the tool cutting edge projects by a predeterminable projecting length beyond the holder for a machining operation, is characterized in that the holder is provided at the outer circumference with a supporting part which projects in the direction of the projecting length of the tool cutting edge and forms a supporting surface for at least partial abutment of the cutting tool. | 07-23-2009 |
| 20090087268 | Tool Holder System - In a tool holder system having a base support plate ( | 04-02-2009 |
| 20080298922 | Tool System for Machining - In a tool system for machining, having at least one receptacle for a cutting insert which can be brought at least partly with a bearing surface of convex curvature into contact with a supporting surface of concave curvature on the receptacle, the convexity and concavity of bearing surface and supporting surface, respectively, which face one another, define lines of curvature which are different from one another and of which at least one deviates from the circular form. | 12-04-2008 |
