DE524677C - Drill bits with interchangeable cutting blades for metalworking - Google Patents

Drill bits with interchangeable cutting blades for metalworking

Info

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
Application number
DEK113347D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMIL KREMER
Original Assignee
EMIL KREMER
Publication date
Priority to DEK113347D priority Critical patent/DE524677C/en
Application granted granted Critical
Publication of DE524677C publication Critical patent/DE524677C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/10Bits for countersinking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/02Connections between shanks and removable cutting heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/50Drilling 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)

Patentanspruch:Claim: Bohrer mit auswechselbaren Schneidmessern für Metallbearbeitung, dadurch gekennzeichnet, daß der Messer halter als an der Stirnseite rechtwinklig zur Achse abgeflachter, zweinutiger Spiralbohrer ausgebildet ist, in dessen nach dem Innern sich verjüngende, prismatische Ausnehmung ie) die verschiedenen flachen Schneidmesser (i, k, o, p) in an sich bekannter Weise durch einen in der axialen Bohrung (b) geführten Haltebolzen (c) gezogen und durch Schraube (d) gehalten werden.Drill with interchangeable cutting knives for metalworking, characterized in that the knife holder is designed as a two-groove twist drill flattened on the end face at right angles to the axis, in the inside of which tapering, prismatic recess ie) the various flat cutting knives (i, k, o , p) are pulled in a manner known per se through a retaining bolt (c) guided in the axial bore (b) and held by screw (d) . Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEK113347D Drill bits with interchangeable cutting blades for metalworking Expired DE524677C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (22)

* Cited by examiner, † Cited by third party
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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