DE524677C - Drill bits with interchangeable cutting blades for metalworking - Google Patents
Drill bits with interchangeable cutting blades for metalworkingInfo
- Publication number
- DE524677C DE524677C DEK113347D DEK0113347D DE524677C DE 524677 C DE524677 C DE 524677C DE K113347 D DEK113347 D DE K113347D DE K0113347 D DEK0113347 D DE K0113347D DE 524677 C DE524677 C DE 524677C
- Authority
- DE
- Germany
- Prior art keywords
- drill
- metalworking
- cutting blades
- interchangeable cutting
- drill bits
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/02—Connections between shanks and removable cutting heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/50—Drilling tools comprising cutting inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Description
Gegenstand der Erfindung Ist ein Bohrer mit auswechselbaren Schneidmessern für Metallbearbeitung, bei dem. der Messerhalter als an der Stirnseite rechtwinklig zur Achse abgeflachter, zweinutiger Spiralbohrer ausgebildet ist, in dessen nach dems Innem sich verjüngende, prismatische Ausnehmung verschieden flache Schneidmesser in an sich bekannter Weise durch einen in einen axialenThe subject of the invention is a drill with interchangeable cutting blades for metalworking, in which. the knife holder as flattened on the front side at right angles to the axis, two-groove twist drill is formed, in the inside of which tapering, prismatic recess different flat cutting knife in itself known way by one in one axial
ίο Bohrung geführten Haltebolzen gezogen und durch eine Schraube gehalten werden.ίο hole-guided retaining bolt pulled and held by a screw.
Gegenüber dem bekannten Bohrer dieser Art hat der Bohrer nach der Erfindung durch die beschriebene Ausbildung des Messerhal-Compared to the known drill of this type, the drill according to the invention has through the described design of the knife
xg ters den Vorteil, daß in den Spanabführungsgängen, keine Teüfuge entsteht, sondern der eingesetzte Schneidkörper sich unmittelbar an die Spiralgänge anschließt, wodurch eine ungehinderte Spanabfuhr gewährleistet ist. Ferner wird es durch die prismatische Ausnehmung aus dem vollen Bohrkörper möglich, den Querschnitt des Bohrkörpers günstig auszunutzen, indem trotz tiefer Spiralgänge und einer festen Sitzfläche für den Halter des Einsatzbohrkopfes die Wandstärke des Bohrkörpers nicht zu sehr geschwächt wird.xg ters the advantage that in the chip removal passages, no joint is created, but the cutting body used is directly adjacent connects the spiral flutes, which ensures unimpeded chip evacuation. Further it is possible through the prismatic recess from the full drill body, the cross-section of the drill body to be used favorably by despite deep spiral passages and a firm seat for the holder of the insert drill head the wall thickness of the drill body is not weakened too much.
In der Zeichnung ist der neue Bohrerkörper in einem Ausführungsbeispiel dargestellt, und zwar zeigt:In the drawing, the new drill body is shown in an exemplary embodiment, namely shows:
Abb. ι den Bohrerkörper,Fig. Ι the drill body,
Abb. 2 die Seitenansicht zu Abb. i, teilweise geschnitten mit einem eingesetzten Zentrumbohrermesser, Fig. 2 the side view of Fig. I, partially cut with an inserted center drill knife,
Abb. 3 die Ansicht von unten zu Abb. i,Fig. 3 the view from below to Fig. I,
Abb. 4 eine Ansicht eines in den Bohrerkörper einsetzbaren Spitzbohrerniessers und Abb. s eine Ansicht des in den Bohrerkörper einsetzbaren Flächenbohrers.Fig. 4 shows a view of a pointed drill bit insertable into the drill body and Fig. S a view of the surface drill that can be inserted into the drill body.
Der Bohrerkörper α ist nach Art eines Spiralbohrers ausgebildet und unten flach abgeschnitten. In seiner Längsachse hat er die Bohrung b, die zur Aufnahme des Halters c dient, der gegen Herausfallen durch die Schraubet gesichert ist. An die Bohrungb schließt sich nach: unten die nach dem Innern sich verjüngende, prismatische Ausnehmung e in der Breite der einzusetzenden Messer an. Der Halter c hat unten einen schwalbenschwanzförmigen Zapfen/, auf welchen die Messer mit ihren entsprechenden schwalbenschwanzförmigen Ausnehmungen g aufgeschoben werden. Zum Heraustreiben des Halters c mit dem Schneidmesser aus dem Bohrerkörper dient das Querloch h, welches durch den ganzen Bohrerkörper hindurchgeht und in die Bohrung b einschneidet. Nach Abb. 2 ist ein Zentrumbohrer i in dem Bohrerkörper a eingesetzt, und kann dieser Bohrer ohne weiteres mit dem Spitzbohrer k (Abb. 4) vertauscht werden. Abb. 5 zeigt einen Flächenbohrer mit Führungszapfen ti, welch1 letzterer mit dem Halter c aus einem Stück hergestellt ist, während die Schneidmesser ο, ρ an dem abgeflachten Teil r des Halters c seitlich angesetzt sind.The drill body α is designed in the manner of a twist drill and cut off flat at the bottom. In its longitudinal axis it has the bore b, which serves to receive the holder c , which is secured against falling out by the screw. At the bottom of the bore b , the prismatic recess e , which tapers towards the inside, is adjoined in the width of the knife to be used. The holder c has a dovetail-shaped pin / on which the knives with their corresponding dovetail-shaped recesses g are pushed. The transverse hole h, which passes through the entire drill body and cuts into the bore b , is used to drive the holder c out of the drill body with the cutting knife. According to Fig. 2, a center drill i is inserted in the drill body a , and this drill can easily be interchanged with the pointed drill k (Fig. 4). Fig. 5 shows a surface with the drill guide pins ti, which latter with the holder 1 c is made in one piece, while the cutting blade ο, ρ on the flattened part of the holder r c are carried laterally.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK113347D DE524677C (en) | Drill bits with interchangeable cutting blades for metalworking |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK113347D DE524677C (en) | Drill bits with interchangeable cutting blades for metalworking |
Publications (1)
Publication Number | Publication Date |
---|---|
DE524677C true DE524677C (en) | 1931-05-11 |
Family
ID=7242719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK113347D Expired DE524677C (en) | Drill bits with interchangeable cutting blades for metalworking |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE524677C (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2531887A1 (en) * | 1982-08-18 | 1984-02-24 | Hurth Masch Zahnrad Carl | Small dia. milling tool |
DE4410027A1 (en) * | 1994-03-23 | 1995-09-28 | Ejot Verbindungstech Gmbh & Co | Drills, in particular self-drilling screws |
WO2002018082A1 (en) * | 2000-09-01 | 2002-03-07 | Kennametal Inc. | Rotative cutting device, e.g. drill |
US7070367B2 (en) | 1999-08-03 | 2006-07-04 | Kennametal Inc. | Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill |
US7309196B2 (en) | 2004-10-05 | 2007-12-18 | Kennametal Inc. | Modular drill |
US7360974B2 (en) | 2002-02-21 | 2008-04-22 | Kennametal Inc. | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert |
USD798921S1 (en) | 2015-10-07 | 2017-10-03 | Kennametal Inc. | Cutting head for modular drill |
USD798922S1 (en) | 2015-10-07 | 2017-10-03 | Kennametal Inc. | Cutting head for rotary drill |
US9937567B2 (en) | 2015-10-07 | 2018-04-10 | Kennametal Inc. | Modular drill |
US10040132B2 (en) | 2015-06-24 | 2018-08-07 | Kennametal Inc. | Rotary tool, in particular a drill for such a rotary tool |
US10052698B2 (en) | 2013-10-15 | 2018-08-21 | Kennametal Inc. | Modular carrier tool and tool head |
US10058930B2 (en) | 2013-04-03 | 2018-08-28 | Kennametal Inc. | Tool head for rotary cutting tool and rotary cutting tool including same |
US10071430B2 (en) | 2015-10-07 | 2018-09-11 | Kennametal Inc. | Cutting head, rotary tool and support for the rotary tool and for the accommodation of the cutting head |
US10213845B2 (en) | 2014-04-08 | 2019-02-26 | Kennametal Inc. | Rotary tool, in particular a drill, and a cutting head for said rotary tool |
US10799958B2 (en) | 2017-08-21 | 2020-10-13 | Kennametal Inc. | Modular rotary cutting tool |
US11911830B2 (en) | 2019-06-13 | 2024-02-27 | Kennametal India Ltd. | Indexable drilling inserts |
-
0
- DE DEK113347D patent/DE524677C/en not_active Expired
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2531887A1 (en) * | 1982-08-18 | 1984-02-24 | Hurth Masch Zahnrad Carl | Small dia. milling tool |
DE4410027A1 (en) * | 1994-03-23 | 1995-09-28 | Ejot Verbindungstech Gmbh & Co | Drills, in particular self-drilling screws |
US7070367B2 (en) | 1999-08-03 | 2006-07-04 | Kennametal Inc. | Twist drill for drilling having a replaceable drill tip, and a replaceable drill tip for use in a twist drill |
WO2002018082A1 (en) * | 2000-09-01 | 2002-03-07 | Kennametal Inc. | Rotative cutting device, e.g. drill |
US7048480B2 (en) | 2000-09-01 | 2006-05-23 | Kennametal Inc. | Twist drill with a replaceable cutting insert and a rotary cutting tool with a replaceable cutting insert |
US7306410B2 (en) | 2000-09-01 | 2007-12-11 | Kennametal Inc. | Twist drill with a replaceable cutting insert and a rotary cutting tool with a replaceable cutting insert |
US8807888B2 (en) | 2002-02-21 | 2014-08-19 | Kennametal Inc. | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert |
US7360974B2 (en) | 2002-02-21 | 2008-04-22 | Kennametal Inc. | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert |
US7832967B2 (en) | 2002-02-21 | 2010-11-16 | Kennametal Inc. | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert |
US8366358B2 (en) | 2002-02-21 | 2013-02-05 | Kennametal Inc. | Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchangeable cutting insert |
USRE44915E1 (en) | 2004-10-05 | 2014-05-27 | Kennametal Inc. | Modular drill |
US7309196B2 (en) | 2004-10-05 | 2007-12-18 | Kennametal Inc. | Modular drill |
US10058930B2 (en) | 2013-04-03 | 2018-08-28 | Kennametal Inc. | Tool head for rotary cutting tool and rotary cutting tool including same |
US10052698B2 (en) | 2013-10-15 | 2018-08-21 | Kennametal Inc. | Modular carrier tool and tool head |
US10213845B2 (en) | 2014-04-08 | 2019-02-26 | Kennametal Inc. | Rotary tool, in particular a drill, and a cutting head for said rotary tool |
US10040132B2 (en) | 2015-06-24 | 2018-08-07 | Kennametal Inc. | Rotary tool, in particular a drill for such a rotary tool |
USD798921S1 (en) | 2015-10-07 | 2017-10-03 | Kennametal Inc. | Cutting head for modular drill |
USD798922S1 (en) | 2015-10-07 | 2017-10-03 | Kennametal Inc. | Cutting head for rotary drill |
US9937567B2 (en) | 2015-10-07 | 2018-04-10 | Kennametal Inc. | Modular drill |
US10071430B2 (en) | 2015-10-07 | 2018-09-11 | Kennametal Inc. | Cutting head, rotary tool and support for the rotary tool and for the accommodation of the cutting head |
US10799958B2 (en) | 2017-08-21 | 2020-10-13 | Kennametal Inc. | Modular rotary cutting tool |
US11911830B2 (en) | 2019-06-13 | 2024-02-27 | Kennametal India Ltd. | Indexable drilling inserts |
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