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DE664805C - Finger milling tool for devices for drilling angular holes - Google Patents

Finger milling tool for devices for drilling angular holes

Info

Publication number
DE664805C
DE664805C DEB172580D DEB0172580D DE664805C DE 664805 C DE664805 C DE 664805C DE B172580 D DEB172580 D DE B172580D DE B0172580 D DEB0172580 D DE B0172580D DE 664805 C DE664805 C DE 664805C
Authority
DE
Germany
Prior art keywords
devices
milling tool
drilling
angular holes
tool
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
DEB172580D
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEB172580D priority Critical patent/DE664805C/en
Application granted granted Critical
Publication of DE664805C publication Critical patent/DE664805C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B41/00Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/04Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring polygonal or other non-circular holes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Description

0(548050 (54805

Bei den bisherigen Werkzeugen zum Bohren kantiger Löcher verlaufen die Schneidkanten symmetrisch zur Mitte, was zur Folge hatte, daß zum Bohren der kantigen Löcher erst eine runde Vorbohrung· erfolgen mußte, da infolge der symmetrisch verlaufenden Schneidkanten in der Mitte des zu bohrenden Kantloches keine Verspännung eintreten konnte. Beim Gegenstand der Erfindung sind die Bohrwerkzeuge so ausgebildet, daß eine runde Vorbohrung nicht erforderlich ist und die Kantbohrungen direkt in das Volle erfolgen können, da durch die Ausbildung der Schneidkanten auch, in der Mitte des Kantloches eine Verspannung eintritt.With the previous tools for drilling with angular holes, the cutting edges run symmetrically to the center, which has the consequence that in order to drill the angular holes a round pilot hole first had to be made, since due to the symmetrical cutting edges in the center of the square hole to be drilled no tension could occur. When the subject of the invention are Drilling tools designed so that a round pilot hole is not required and the Edge bores can be made directly into the solid because of the formation of the cutting edges also, a tension occurs in the middle of the square hole.

Diese Verspannung wird dadurch erreicht, daß die Schneidkanten nicht symmetrisch zur Mitte verlaufen, sondern eine Schneidkante, radial verlaufend, um den halben Betrag der Öszillationsbewegung über die Mittelachse verlängert ist. Zum Zwecke besserer Spanabnahme und freieren Spanaustrittes ist im Verlauf der verlängerten Schneidkante eine entsprechend große Spannut angeordnet.This tension is achieved in that the cutting edges are not symmetrical to the Run center, but a cutting edge, running radially, by half the amount of Oscillation movement is extended over the central axis. For the purpose of better chip removal and freer chip exit is a corresponding one in the course of the extended cutting edge large flute arranged.

Zwecks sparsamen Verbrauches des hochwertigen Schneidmaterials, besonders bei großen Lochquerschnitten, ist das Bohrwerkzeug auch aus Bohrerschaft mit eingesetztem Messer gebildet, wobei der Bohrerschaft aus billigerem Material hergestellt werden kann als das einzusetzende Messer.For the purpose of economical consumption of the high-quality cutting material, especially with large hole cross-sections, the drilling tool is also made of drill shank with inserted Knife formed, wherein the drill shaft can be made of cheaper material than the knife to be used.

In der Zeichnung ist der Gegenstand der Erfindung in vier Abbildungen dargestellt, und zwar zeigen ■ ...In the drawing, the object of the invention is shown in four figures, namely show ■ ...

Abb. ι die Ansicht des Werkzeuges für Vierkantlöcher,Fig. Ι the view of the tool for Square holes,

Abb. 2 dieselbe für Sechskantlöcher,Fig. 2 same for hexagonal holes,

Abb. 3 und 4 Draufsicht und Seitenansicht eines Werkzeuges, beispielsweise für Vierkantbohrungen mit eingesetztem Schneidmesser.Fig. 3 and 4 plan view and side view of a tool, for example for square holes with inserted cutting knife.

Wie aus Abb. 1 und 2 ersichtlich, erhält das fingerartige Bohrwerkzeug, hier beispielsweise für Vier- und Sechskantbohrung, eine Schneide 2, die radial verläuft und um den halben Betrag der Oszillationsbewegung über die Mittelachse hinaus verlängert ist, wobei vor der Schneidenbrust eine große Spannut angeordnet ist. Aus Abb. 3 und 4 ist das im Bohrerschaft 3 eingesetzte Messer mit über die Mitte verlängerter Schneidkante zu ersehen und ist beispielsweise der Schaft für Vierkantbohrungen dargestellt.As can be seen from Fig. 1 and 2, is obtained the finger-like drilling tool, here for example for square and hexagonal drilling, a Cut 2, which runs radially and over half the amount of the oscillating movement the central axis is extended, with a large flute in front of the cutting face is arranged. From Fig. 3 and 4, the knife inserted in the drill shank 3 is with over the In the middle of the extended cutting edge and is, for example, the shank for square holes shown.

Claims (2)

Patentansprüche:Patent claims: 1. Fingerfräserartiges Werkzeug für Vorrichtungen zum Bohren kantiger Löcher, dadurch gekennzeichnet, daß eine der radial verlaufenden Schneidkanten um den halben Betrag der Oszillationsbewegung über die Mittelachse des Werkzeuges hinaus verlängert ist, wobei vor der Schneidenbrust eine große Spannut angeordnet ist.1. End mill-like tool for devices for drilling angular holes, characterized in that one of the radially extending cutting edges by half the amount of the oscillating movement is extended beyond the central axis of the tool, with in front of the cutting face a large flute is arranged. 2. Fräser nach. Anspruch 1, dadurch gekennzeichnet, daß die verlängerte Schneidkante durch ein eingesetztes Messer gebildet wird. .2. Milling after. Claim 1, characterized in that that the elongated cutting edge is formed by an inserted knife will. . Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEB172580D Finger milling tool for devices for drilling angular holes Expired DE664805C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB172580D DE664805C (en) Finger milling tool for devices for drilling angular holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB172580D DE664805C (en) Finger milling tool for devices for drilling angular holes

Publications (1)

Publication Number Publication Date
DE664805C true DE664805C (en) 1938-09-05

Family

ID=7007052

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB172580D Expired DE664805C (en) Finger milling tool for devices for drilling angular holes

Country Status (1)

Country Link
DE (1) DE664805C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE823688C (en) * 1950-10-04 1949-04-22 Fries Arauner Rudolf Fries Aug Drilling device for generating holes with a polygonal cross-section
DE1058809B (en) * 1954-04-27 1959-06-04 Illinois Tool Works Milling tool for metalworking
DE1177904B (en) * 1960-10-11 1964-09-10 Hurth Masch Zahnrad Carl Slot milling cutter
JP2011200955A (en) * 2010-03-25 2011-10-13 Dijet Industrial Co Ltd Cutting tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE823688C (en) * 1950-10-04 1949-04-22 Fries Arauner Rudolf Fries Aug Drilling device for generating holes with a polygonal cross-section
DE1058809B (en) * 1954-04-27 1959-06-04 Illinois Tool Works Milling tool for metalworking
DE1177904B (en) * 1960-10-11 1964-09-10 Hurth Masch Zahnrad Carl Slot milling cutter
JP2011200955A (en) * 2010-03-25 2011-10-13 Dijet Industrial Co Ltd Cutting tool

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