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公开(公告)号：US20240017329A1
公开(公告)日：2024-01-18
申请号：US18037134
申请日：2021-11-25
发明人： Wolfgang BAUMANN , Tobias GRÄUPEL
CPC分类号： B23B27/145 , B23B29/24 , B23B2200/0447 , B23B2200/369 , B23B2210/022 , B23B2220/08 , B23B2220/126 , B23B2226/125 , B23B2228/24
摘要： The invention relates to a cutting insert holder, having a central axis and at least one first receptacle for fastening a first cutting insert to the cutting insert holder, and having at least one second receptacle for fastening at least one second cutting insert to the cutting insert holder, wherein the first receptacle and the second receptacle are arranged offset from each other in the circumferential direction about the central axis, wherein the first receptacle and the second receptacle are configured and arranged in such a way that a first rake face associated with an active main cutting edge of a first cutting insert arranged in the first receptacle has a first orientation along the circumferential direction, wherein a second rake face associated with an active main cutting edge of a second cutting insert arranged in the second receptacle has a second orientation along the circumferential direction).
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公开(公告)号：US11077504B2
公开(公告)日：2021-08-03
申请号：US16313967
申请日：2017-07-12
发明人： Ulrich Krenzer , Serkan Topal
摘要： A step drill includes a distal end, an opposite proximal end, a drill tip and at least one drill step. The drill tip has a tip at the distal end of the step drill and comprises a first number of geometrically defined cutters, each of which is paired with a first flute and lies on an imaginary first circular line about a longitudinal axis of the step drill. The imaginary first circular line has a first radius. The at least one drill step is arranged at a distance from the distal end and has an end face with a second number of geometrically defined cutters each of which is paired with a second flute and lies on an imaginary second circular line that runs about the longitudinal axis of the step drill and has a second radius. The first radius is smaller than the second radius. The first flutes of the drill tip and the second flutes of the drill step merge in a region, which is arranged at a greater distance from the distal end than the end face of the drill step, and form a single flute.
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公开(公告)号：US20160214184A1
公开(公告)日：2016-07-28
申请号：US14915314
申请日：2014-08-25
发明人： Ulrich KRENZER , Serkan TOPAL
IPC分类号： B23B51/02
CPC分类号： B23B51/02 , B23B2250/12 , B23B2251/04 , B23B2251/14 , B23B2251/18 , Y10T408/909 , Y10T408/9097
摘要： A drill has a central axis, a front side, a circumferential surface, at least two main edges on the front side, which reach up to the circumferential surface and merge there with secondary edges, at least two central edges extending from the end of the main edge facing away from the circumferential surface, cutting surfaces associated with the main edges and central edges, chip flutes associated with the main edges and central edges and introduced into the circumferential surface, at least one cross edge adjoined by the ends of the central edges facing away from the main edges which passes through the central axis, a point thinning and chip run-up shoulders associated with at least the cutting surfaces of the central edges. An angle γ of the chip run-up shoulder decreases in the region of the point thinning towards the central axis as the distance from the front side increases.
摘要翻译： 钻头具有中心轴线，前侧面，圆周表面，前侧至少两个主边缘，其至少延伸到圆周表面并与其二次边缘合并在一起，至少两个中心边缘从 主边缘远离圆周表面，与主边缘和中心边缘相关联的切割表面，与主边缘和中心边缘相关联的芯片凹槽并被引入圆周表面，至少一个与中心边缘的端部邻接的十字边缘 面向远离穿过中心轴线的主边缘，与中心边缘的至少切割表面相关联的点变薄和芯片起落肩部。 随着距离前侧的距离增加，芯片上升台肩的角度γ在朝向中心轴线变薄的点的区域中减小。
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公开(公告)号：US20150217387A1
公开(公告)日：2015-08-06
申请号：US14427474
申请日：2013-09-13
发明人： Dieter Kress
IPC分类号： B23D77/04 , B23B29/034
CPC分类号： B23D77/04 , B23B29/0341 , B23C5/2472 , B23D77/044 , B23D2277/068 , Y10T407/227 , Y10T408/858 , Y10T408/85995 , Y10T408/885
摘要： 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.
摘要翻译： 一种铰刀或类似工具，其包括具有切割边缘的切割装置，夹持装置，由此切割装置可以夹紧到工具的主体，与切割装置相互作用的调节装置，用于调整切割装置的加工直径 工具和引导装置，其包括与细长导向插座相互作用的细长引导元件，使得当调节装置被启动时，在移位过程中，切割装置可以以垂直于中心轴线的滑动方式被引导。 引导元件和导向插座垂直于工具主体的中心轴延伸。 工具的引导装置具有单个导向元件和/或单个导向插座，并且导向元件具有细长的高度，并且引导插座具有细长的凹部。
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公开(公告)号：US11766727B2
公开(公告)日：2023-09-26
申请号：US17691445
申请日：2022-03-10
发明人： Dieter Kress
CPC分类号： B23C5/1018 , B23C2210/0414 , B23C2210/084 , B23P15/34
摘要： A milling head for a ball track milling cutter includes an imaginary center axis, a first, working-side end and a second, clamping-side end opposite the first end when viewed along the central axis, and comprising at least one geometrically defined cutting edge, extending along a cutting edge profile of the cutting edge from a first cutting edge end facing the first end of the milling head in the direction of the second end of the milling head up to a second cutting edge end facing the second end of the milling head, wherein at least one cutting edge is formed as an intersecting line between the rake face associated with at least one cutting edge and a first flank face associated with at least one cutting edge, wherein at least one cutting edge is assigned a negative rake angle, a first clearance angle and a wedge angle. It is provided that a value of the negative rake angle in the region of the first cutting edge end has a different value than in the region of the second cutting edge end, that the first clearance angle in the region of the first cutting edge end has a different value than in the region of the second cutting edge end, and that the wedge angle along the cutting edge profile is constant.
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公开(公告)号：US11305360B2
公开(公告)日：2022-04-19
申请号：US16494174
申请日：2018-03-15
发明人： Dieter Kress
IPC分类号： B23C5/10
摘要： A milling head for a ball track milling cutter includes an imaginary center axis, a first, working-side end and a second, clamping-side end opposite the first end when viewed along the central axis, and comprising at least one geometrically defined cutting edge, extending along a cutting edge profile of the cutting edge from a first cutting edge end facing the first end of the milling head in the direction of the second end of the milling head up to a second cutting edge end facing the second end of the milling head, wherein at least one cutting edge is formed as an intersecting line between the rake face associated with at least one cutting edge and a first flank face associated with at least one cutting edge, wherein at least one cutting edge is assigned a negative rake angle, a first clearance angle and a wedge angle. It is provided that a value of the negative rake angle in the region of the first cutting edge end has a different value than in the region of the second cutting edge end, that the first clearance angle in the region of the first cutting edge end has a different value than in the region of the second cutting edge end, and that the wedge angle along the cutting edge profile is constant.
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公开(公告)号：US10857606B2
公开(公告)日：2020-12-08
申请号：US16611530
申请日：2018-05-09
发明人： Jochen Kress
IPC分类号： B23D77/00
摘要： A multi-edge reamer has a cutting region having a main body with a central axis. A first number of first cutters and a second number of second cutters extend from the main body. Each first cutter has a cutting edge and an adjoining circular grinding chamfer which forms a guide region for a corresponding first cutter and has a first width. Each second cutter has a cutting edge and an adjoining circular grinding chamfer which forms a guide region for a corresponding second cutter and has a second width. The first width is greater than the second width, the first number of first cutters is greater than the second number of second cutters, and all of the first cutters directly adjoin one another when seen in the circumferential direction so as to be arranged in a continuous group.
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公开(公告)号：US20200238409A1
公开(公告)日：2020-07-30
申请号：US16611530
申请日：2018-05-09
发明人： Jochen KRESS
摘要： A multi-edge reamer has a cutting region having a main body with a central axis. A first number of first cutters and a second number of second cutters extend from the main body. Each first cutter has a cutting edge and an adjoining circular grinding chamfer which forms a guide region for a corresponding first cutter and has a first width. Each second cutter has a cutting edge and an adjoining circular grinding chamfer which forms a guide region for a corresponding second cutter and has a second width. The first width is greater than the second width, the first number of first cutters is greater than the second number of second cutters, and all of the first cutters directly adjoin one another when seen in the circumferential direction so as to be arranged in a continuous group.
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公开(公告)号：US09833843B2
公开(公告)日：2017-12-05
申请号：US14387577
申请日：2013-03-20
发明人： Ulrich Krenzer
CPC分类号： B23B51/009 , B23B51/02 , B23B51/10 , B23B51/108 , B23B2251/04 , B23B2251/14 , B23B2251/204 , B23B2251/406 , B23B2251/48 , Y10T408/03 , Y10T408/906 , Y10T408/9097
摘要： A drill bit has a tool shank, a center axis, a first cutting region with at least one geometrically defined first cutting edge, the same having a cutting face arranged at a radial distance from the center axis of the drill bit. The first cutting edge forms a countersink angle with the center axis. The drill bit having a chip shaping stage functionally assigned to the first cutting edge formed by the cutting face of the first cutting edge and by a shoulder surface adjoining the cutting face and forming a shoulder angle with the same, wherein the shoulder angle is greater than 90°, and preferably greater than 100°. The cutting face runs at a radial rake angle with respect to an imaginary radial line which cuts the first cutting edge, the same functionally assigned to the cutting face. The radial rake angle is positive.
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公开(公告)号：US09643263B2
公开(公告)日：2017-05-09
申请号：US14386577
申请日：2013-03-20
发明人： Ulrich Krenzer
CPC分类号： B23C5/10 , B23B2251/046 , B23C3/02 , B23C2210/0492 , B23C2210/285 , B23C2210/287 , B23C2220/52 , B23C2220/605 , B23C2226/27 , Y10T407/1948 , Y10T408/9097 , Y10T409/303808
摘要： A milling and boring tool with a tool shaft which comprises a center axis, at least one geometrically defined rough cutter and at least one geometrically defined finishing cutter, and the at least one rough cutter and the at least one finishing cutter respectively comprise a chip groove. The milling and boring tool is characterized in that the chip groove of the at least one finish machining cutter has an opposite twist than the chip groove of the at least one rough cutter.
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