Mapal Fabrik Fur Prazisionswerkzeuge Dr. Kress KG Patent applications |
Patent application number | Title | Published |
20150217387 | TOOL FOR MACHINING WORKPIECES - 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. | 08-06-2015 |
20150093205 | Drill - 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. | 04-02-2015 |
20150050095 | MILLING AND BORING TOOL - 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. | 02-19-2015 |
20140193218 | TOOL FOR PROCESSING WORK PIECES - A tool for machining work pieces includes a base body and at least first and second operating slides, slidable with respect to the base body. The first operating slide carries a machining element. At least one balancing pendulum can be pivoted with respect to the base body. A first coupling device connects the first operating slide and the second operating slide and is pivotably hinged to the first operating slide and the second operating slide. A second coupling device connects the first coupling device and the balancing pendulum. The second coupling device is pivotably hinged to the first coupling device at a hinge point. The second coupling device is pivotably mounted around a rotation axis of the tool. Displacement of the first operating slide resultantly displaces the second operating slide in an opposite direction relative to the rotation axis of the tool. | 07-10-2014 |
20130307178 | DRILLING TOOL AND METHOD FOR PRODUCING DRILL HOLES - A drilling tool for producing drill holes includes a tip and a shaft arranged opposite the tip in a direction of a longitudinal axis of the drilling tool. The drilling tool has at least one geometrically defined cutting edge in the tip area, and has an expanded diameter trailing the tip in a longitudinal direction from the tip. The drilling tool has a first area with a first diameter that precedes the expanded diameter, and a second area with a second diameter, larger than the first diameter, that trails the expanded diameter. The drilling tool is distinguished in that the expanded diameter and/or the second area is/are embodied such that chips are produced in the area of the expanded diameter and/or in the second area when a workpiece is machined, chips consistent with those produced when a workpiece is machined with a geometrically undefined cutting edge. | 11-21-2013 |
20120183367 | DRILL - A drill for producing a drilled hole in work pieces has at least one main cutting edge on an end face. At least one secondary cutting edge is provided in the region of a circumferential surface of the drill. At least one circularly ground land circumferentially adjoins the at least one secondary cutting edge. The circularly ground lands extend over a first longitudinal section in the front area of the secondary cutting edge. In a following second longitudinal section, a secondary flank circumferentially adjoins the secondary cutting edge. | 07-19-2012 |
20110217135 | TOOL HOLDER - A tool holder includes a hollow taper shank chucking device having a center axis, a chucking device, a tension rod which cooperates with the chucking device and an actuating unit by means of which the tension rod may be actuated, i.e., displaced. The actuating unit has an actuating element which is movable at an angle relative to the center axis and which includes at least one actuating part. The angle may be 90°. The tension rod is provided with at least one engagement part. The actuating part and engagement part form a wedge mechanism which is used to convert a radial motion of the actuating element, i.e., a displacement perpendicular to the center axis, into an axial displacement of the tension rod in the direction of the center axis. | 09-08-2011 |
20100202843 | REAMER - The invention proposes a reamer having
| 08-12-2010 |
20090193932 | Tool for Machining Workpiece Surfaces - It is suggested here that a tool for the machining of workpiece surfaces, with at least one adjustable, geometrically defined cutting edge ( | 08-06-2009 |
20090123241 | Tool for machining boreholes - A tool for machining borehole surfaces, includes
| 05-14-2009 |
20090080985 | Reamer Comprising a Cutting Plate - The invention relates to a reamer which comprises a shaft comprising a traction part and in the axial direction thereof, a working area which is provided with at least one interchangeable tool part and at least one pressure body which is fixed thereto. The tool part is embodied as a hard metal cutting plate, in particular, as an indexable insert. According to the invention, the cutting surface of the cutting plate is arranged at a distance of al least 0.02 mm from the cutting edge on one side in the region of the cut part and at least partially has a peak-to-valley height which increases by at least 0.01 mm in order to assure the production of cut fragments in the main cutting area and to prevent a build up of cuts in the region of auxiliary cutting section and/or to simplify the removal of cuts. Also high targets can be reached by virtue of the fact that the cutting plates comprise at least one cutting cavity in the cutting surface thereof at a distance of at least 0.02 mm from the main cutting edge on the end side in the region of the entry angle | 03-26-2009 |
20090045593 | Connection between two tool parts - The invention relates to a connecting point ( | 02-19-2009 |