Patents Assigned to botek Präzisionsbohrtechnik GmbH
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Patent number: 11969804Abstract: The invention relates to a single-lip drill and a double-lip drill having a plurality of chip-forming devices or depressions in the rake face which are arranged in succession and at a distance from one another. As soon as a cutting edge and/or the associated chip-forming device or the associated depression is worn, the deep hole drill according to the invention can be reground using simple means.Type: GrantFiled: March 21, 2019Date of Patent: April 30, 2024Assignee: botek Präzisionsbohrtechnik GmbHInventors: Gotthold Schur, Jürgen Deeg
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Patent number: 11938550Abstract: The invention relates to a drill head for chambering non-cylindrical, rotationally symmetrical holes. This drill head is characterized in that, starting from a diameter of a guide hole, it can cut a very large chamber out of a workpiece. In addition, the drill head has a simple design and is very robust and tight, so that high cutting capacities can be reliably achieved.Type: GrantFiled: January 15, 2020Date of Patent: March 26, 2024Assignee: botek Präzisionsbohrtechnik GmbHInventor: Gerhard Strehle
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Patent number: 11571754Abstract: The invention relates to a single-lip drill with an inner and an outer rake face. Very good hole straightness deviation values and endurance are obtained with the ground face according to the invention.Type: GrantFiled: May 29, 2018Date of Patent: February 7, 2023Assignee: botek Praezisionsbohrtechnik GmbHInventor: Juergen Wenzelburger
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Publication number: 20220288703Abstract: The invention relates to single-lip drills in which two longitudinal grooves are formed in the rake face. They are arranged in the longitudinal direction of the tool, spaced apart from one another by a ridge and favor chip breaking.Type: ApplicationFiled: July 28, 2020Publication date: September 15, 2022Applicant: botek Präzisionsbohrtechnik GmbHInventors: Peter Raber, Jürgen Deeg, Patrick Kammerer, Dennis Köhler
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Publication number: 20220168822Abstract: An indexable guide plate and an associated drilling tool are described in which the indexable guide plates have very small dimensions but, despite these small dimensions, have a large number of guide surfaces. As a result, the indexable guide plate according to the invention can be used for a long time, even with drilling tools having a small drilling diameter.Type: ApplicationFiled: March 11, 2020Publication date: June 2, 2022Applicant: botek Präzisionsbohrtechnik GmbHInventors: Jürgen Deeg, Patrick Kammerer, Stefan Piramovsky, Philipp Jakob
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Publication number: 20220105575Abstract: The invention relates to a drill head for chambering a blind hole with a flat base, and a method directed thereto.Type: ApplicationFiled: January 15, 2020Publication date: April 7, 2022Applicant: botek Präzisionsbohrtechnik GmbHInventor: Gerhard Strehle
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Publication number: 20220080514Abstract: The invention relates to a drill head for chambering non-cylindrical, rotationally symmetrical holes. This drill head is characterized in that, starting from a diameter of a guide hole, it can cut a very large chamber out of a workpiece. In addition, the drill head has a simple design and is very robust and tight, so that high cutting capacities can be reliably achieved.Type: ApplicationFiled: January 15, 2020Publication date: March 17, 2022Applicant: botek Präzisionsbohrtechnik GmbHInventor: Gerhard Strehle
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Publication number: 20210252611Abstract: The invention relates to single-lip drills and double-lip drills, in which one or more depressions are formed in the rake face. The depressions according to the invention are arranged in the longitudinal direction of the tool at a distance from the cutting edge and have a positive influence on chip breaking.Type: ApplicationFiled: March 21, 2019Publication date: August 19, 2021Applicant: botek Präzisionsbohrtechnik GmbHInventor: Gotthold Schur
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Publication number: 20210245268Abstract: The invention relates to a single-lip drill and a double-lip drill having a plurality of chip-forming devices or depressions in the rake face which are arranged in succession and at a distance from one another. As soon as a cutting edge and/or the associated chip-forming device or the associated depression is worn, the deep hole drill according to the invention can be reground using simple means.Type: ApplicationFiled: March 21, 2019Publication date: August 12, 2021Applicant: botek Präzisionsbohrtechnik GmbHInventors: Gotthold Schur, Jürgen Deeg
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Publication number: 20200254533Abstract: The invention relates to a single-lip drill with an inner and an outer rake face. Very good hole straightness deviation values and endurance are obtained with the ground face according to the invention.Type: ApplicationFiled: May 29, 2018Publication date: August 13, 2020Applicant: botek Praezisionsbohrtechnik GmbHInventor: Juergen Wenzelburger
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Publication number: 20200030894Abstract: Described are a drilling tool and a replaceable cutting disk which allow the replaceable cutting disk to be positioned with high accuracy and in a form-locking manner in the drilling tool. At the same time, a cutting disk can be replaced more easily.Type: ApplicationFiled: March 27, 2018Publication date: January 30, 2020Applicant: BOTEK PRAEZISIONSBOHRTECHNIK GMBHInventor: Juergen Deeg
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Patent number: 10265781Abstract: The invention relates to a single-lip deep hole drill comprising a drill head, wherein the drill head has a drill diameter, a blade and a channel for chip removal, wherein the blade extends outwards from a rotational axis up to the perimeter of the drill head, wherein the blade has a cutting surface and wherein the channel is bordered by a chip forming surface, wherein the chip forming surface has two sections such that a first section of the chip forming surface extends in the radial direction from the rotational axis up to a first diameter, a second section of the chip forming surface connects to the first section in the radial direction, the first section is positioned above the cutting surface, and the second section is positioned nearer to the cutting surface than the first section.Type: GrantFiled: February 10, 2016Date of Patent: April 23, 2019Assignee: botek Praezisionsbohrtechnik GmbHInventor: Juergen Deeg
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Publication number: 20180029142Abstract: The invention relates to a single-lip deep hole drill comprising a drill head, wherein the drill head has a drill diameter, a blade and a channel for chip removal, wherein the blade extends outwards from a rotational axis (23) up to the perimeter of the drill head, wherein the blade has a cutting surface (33) and wherein the channel is bordered by a chip forming surface (15), wherein the chip forming surface (15) has two sections (19, 21) such that a first section (19) of the chip forming surface (15) extends in the radial direction from the rotational axis (23) up to a first diameter, a second section (21) of the chip forming surface (15) connects to the first section (19) in the radial direction, the first section (19) is positioned above the cutting surface (33), and the second section (21) is positioned nearer to the cutting surface (33) than the first section (19).Type: ApplicationFiled: February 10, 2016Publication date: February 1, 2018Applicant: botek Praezisionsbohrtechnik GmbHInventor: Juergen Deeg
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Publication number: 20170232531Abstract: A method for reloading a single-flute drill comprising a shaft made of a hard metal and a drill head that is connected to the shaft and is made of a hard metal, is characterized by the following steps: removing a worn drill head from the shaft; integrally bonding a new drill head to the shaft.Type: ApplicationFiled: June 30, 2015Publication date: August 17, 2017Applicant: botek Praezisionsbohrtechnik GmbHInventors: Joerg HILLER, Juergen WENZELBURGER
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Publication number: 20170182564Abstract: A drill head for deep-hole drilling includes cutting blade tips brazed to cutting chip discharge ports opened on a head distal end surface, guide pads mounted on a plurality of positions of the circumferential surface at the head distal end side, and a hollow inside portion made into a cutting chip discharge passage communicating with the cutting chip discharge ports. A guide pad portion having an arc surf ace that slide-contacts with the inner circumference of a cutting hole is formed on the outer end surface of the circumferential portion cutting blade tip.Type: ApplicationFiled: February 10, 2017Publication date: June 29, 2017Applicant: botek Praezisionsbohrtechnik GmbHInventor: Takuji NOMURA
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Patent number: 9669474Abstract: A single-lip drill including at least one cutting edge on a drill head has a face which is concave along at least 75 percent of the width thereof and substantially along the entire length thereof, all the way to, and inclusive of, the cutting edge.Type: GrantFiled: August 20, 2013Date of Patent: June 6, 2017Assignee: botek Praezisionsbohrtechnik GmbHInventors: Juergen Wenzelburger, Juergen Deeg
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Patent number: 9656327Abstract: A drill head for deep-hole drilling includes cutting blade tips brazed to cutting chip discharge ports opened on a head distal end surface, guide pads mounted on a plurality of positions of the circumferential surface at the head distal end side, and a hollow inside portion made into a cutting chip discharge passage communicating with the cutting chip discharge ports. A guide pad portion having an arc surface that slide-contacts with the inner circumference of a cutting hole is formed on the outer end surface of the circumferential portion cutting blade tip.Type: GrantFiled: May 16, 2011Date of Patent: May 23, 2017Assignee: botek Präzisionsbohrtechnik GmbHInventor: Takuji Nomura
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Patent number: 9421621Abstract: The invention relates to a single-lip drill (10) having at least one cutting edge (160) for solid drilling, comprising a drill head (13) arranged on a shaft (12), a chip removal channel (151) extending substantially along the axis of the drill head (13) and of the shaft (12) and arranged in both the drill head (13) and the shaft (12), and a plurality of guiding elements (170, 171, 172, 173) arranged on the circumference of the drill head (13), wherein the single-lip drill is characterized in that at least one guiding element (170) is arranged at least partially in an angle range of greater than or equal to 245°, measured from the cutting edge (160) arranged at 0° in a direction opposite the rotational direction of the single-lip drill.Type: GrantFiled: November 3, 2011Date of Patent: August 23, 2016Assignee: botek Praezisionsbohrtechnik GmbHInventors: Juergen Wenzelburger, Juergen Deeg
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Patent number: 9358620Abstract: A guide gib (500) for a deep drilling tool of a substantially rectangular shape with a longitudinal direction (L) and a width (B) and with at least one sliding surface (540) is characterized in that at least one lubricating groove, preferably a plurality of lubricating grooves (501, 502), is/are arranged at least in the region of a contact zone of the sliding surface.Type: GrantFiled: March 3, 2011Date of Patent: June 7, 2016Assignee: Botek Praezisionsbohrtechnik GmbHInventors: Karl-Heinz Wenzelburger, Juergen Wenzelburger
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Publication number: 20150217383Abstract: A single-lip drill including at least one cutting edge on a drill head has a face which is concave along at least 75 percent of the width thereof and substantially along the entire length thereof, all the way to, and inclusive of, the cutting edge.Type: ApplicationFiled: August 20, 2013Publication date: August 6, 2015Applicant: botek Praezisionsbohrtechnik GmbHInventors: Juergen Wenzelburger, Juergen Deeg