DE664805C - Finger milling tool for devices for drilling angular holes - Google Patents
Finger milling tool for devices for drilling angular holesInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/04—Boring 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)
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)
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 |
-
0
- DE DEB172580D patent/DE664805C/en not_active Expired
Cited By (4)
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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