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DE434381C - Reamer with knives mounted in grooves with a semicircular cross-section - Google Patents

Reamer with knives mounted in grooves with a semicircular cross-section

Info

Publication number
DE434381C
DE434381C DEB115488D DEB0115488D DE434381C DE 434381 C DE434381 C DE 434381C DE B115488 D DEB115488 D DE B115488D DE B0115488 D DEB0115488 D DE B0115488D DE 434381 C DE434381 C DE 434381C
Authority
DE
Germany
Prior art keywords
reamer
section
grooves
knives
semicircular cross
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
DEB115488D
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.)
GEORG FREYER
Original Assignee
GEORG FREYER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GEORG FREYER filed Critical GEORG FREYER
Priority to DEB115488D priority Critical patent/DE434381C/en
Application granted granted Critical
Publication of DE434381C publication Critical patent/DE434381C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00Reaming tools
    • B23D77/02Reamers with inserted cutting edges

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)

Description

Die Erfindung betrifft eine Reibahle mit nachstellbarem! Messern, die auf möglichst einfache Weise einem Übelstand abhelfen soll, der verschiedenen!, bisher bekanntem, ähnlichen Reibahlen anhaftet und darin besteht, daß sich die Messer bei zu, großem Schneiddruck, der z. B. bei harten und sandigen Stellen des Werkstücks auftreten kann, hinter dem Span festhaken· und sich in das Werkstück hineinziehen kommen, also- in einen Bereich, der außerhalb des zu reibendien! Lochduirchmessers liegt.The invention relates to a reamer with adjustable! Knives that are as simple as possible Wise to remedy an evil, the different !, previously known, similar Reamers adheres and consists in the fact that the knife with too, great cutting pressure, the z. B. in hard and sandy areas of the Workpiece can occur, hook behind the chip · and pull yourself into the workpiece come, so- in an area that is outside of the area to be rubbed! Lochduirchmesser lies.

Hierdurch entsteht ein rattriges Arbeiten, das die Ursache von Riefenbildungen in der Lochoberfläche ist.This creates a choppy work that is the cause of scoring in the Hole surface is.

Es ist nun zwar eine Reibahle mit verstellbaren Messern bekannt, bei der federnd schlep- · pende Messer Verwendung fkidiem, die auswechselbar an doppelarmigem; Stahlhaltern angeordnet sind und durch federnde Widerlager und federnde Ausbildung der Stahlhalter in der Lage sind, bei zu hohem Schneiddruck nach dem Intnerni des Loches auszuweichen, so daß ein, Einhaken 'der Schneidkanten in die Arbeitsfläche vermieden wirdi.It is true that a reamer with adjustable knives is known in which the resilient dragging pende knives use fkidiem that are interchangeable on double-armed; Steel holders are arranged and by resilient abutments and resilient design of the steel holders are able to withstand too high cutting pressure to avoid the interior of the hole, so that the cutting edges 'hook' into the Work surface is avoided i.

Ein besonderer Nachteil dieser Reibahle ist ihre umständliche Bauart, wodurch die Herstellung sehr verteuert wird, umid der Umstand, daß sie miur für größere Lochidurchmesser in Frage kommen kann.A particular disadvantage of this reamer is its cumbersome design, which makes the production very expensive. that it can only be used for larger hole diameters.

Gemäß der Erfindung sind die obenerwähnten Nachteile auf wesentlich einfachere Weise dadurch behoben, worden, daß in bereits bekannter Weise Messerkörper von halbkreisförmigem Querschnitt und radial verlaufender Schneidbrust, die in Längsnuten von gleichem Querschnitt gelagert sind, Verwendung finden, und daß zwischen- den Messern auf dem Reibahlenkörper Abdeckbleche angeordnet sind, ίο die mit einer federnden Längsseite die Aussparung vor der Längsbrust übergreifen, so daß bei auftretenden Widerständen, die Messer sich um ihre eigene Achse drehen und' die Schneidkanten, nach dem Lochinnern ausweichen können, aber nachher durch die Federwirkung der Abdeckleisten: wieder in die Arbeitsstellung zurückgedreht werden.According to the invention, the disadvantages mentioned above are much simpler Way resolved that in a known manner knife body of semicircular Cross-section and radial cutting face, which are in longitudinal grooves of the same Cross-section are stored, find use, and that between the knives on the reamer body Cover plates are arranged, ίο the recess with a resilient long side overlap in front of the longitudinal chest, so that when resistance occurs, the knife turn around their own axis and 'the cutting edges move towards the inside of the hole can, but afterwards due to the spring action of the cover strips: back to the working position be turned back.

In der Zeichnung ist der Erfrnidiungsgegenstand in Längs- und Querschnitt dargestellt. Der Messerkörperö ist auf seinem Umfang j mit einer der Messerzahl entsprechenden An- j zahl zur Reibahlenachse etwas geneigten Nuten von halbkreisförmigem Querschnitt versehen, in welchem die Messer & von ebensolchem Querschnitt 'liegen, so daß sie sich um die in den Kredsmittelpiunkten liegenden Achsen drehen können. Blattförmige Abdeckleisten c sind durch. Schrauben d an den Messerkörper a geschraubt und sichern die Messer gegen HerausfaUea, während die federnden Längsseiten der Leisten c ein Drehen der Messer um ihre Längsachse zulassen, wenn der Schneidwiderstand zu groß wird.In the drawing, the object to be harvested is shown in longitudinal and cross-section. The knife body is provided on its circumference j with a number of grooves of a semicircular cross-section which are slightly inclined to the reamer axis and in which the knives are of the same cross-section so that they can rotate about the axes lying in the center of the credit . Sheet-shaped cover strips c are through. Screws d screwed onto the knife body a and secure the knife against falling out, while the resilient long sides of the strips c allow the knife to rotate about its longitudinal axis if the cutting resistance becomes too great.

Ein Widerlager e ist mit Gewinde versehen, welches in entsprechende Einkerbungen der Messer eingreift und diese so achsial festhält. Durch. Drehung des Widerlagers e können die Messer b gleichmäßig achsial verschobenAn abutment e is provided with a thread which engages in corresponding notches in the knives and thus holds them axially. By. Rotation of the abutment e can move the knife b evenly axially

werden.will.

Die Schraube/ hält das Widerlager festThe screw / holds the abutment in place

und sichert es gegen ungewollte Verdrehung. In der beschriebenen Bauart können auchand secures it against unwanted twisting. In the type described can also

Fräser und ähnlich umlaufende Werkzeuge mit verstellbaren Messern ausgeführt werden.Milling cutters and similar rotating tools are designed with adjustable knives.

Claims (1)

Patent-Anspruch :Patent claim: Reibahle mit in Nuten von halbkreisförmigem Querschnitt gelagerten Messern, deren Schneidbrust radial verläuft, dadurch gekennzeichnet, daß zwischen den Messern auf dem Reibahlenkörper Abdeckleisten angeordnet sind, die mit einer federnden Längsseite die Aussparung vor der Schneidbrust übergreifen, so daß die Messer, sich um ihre Längsachse drehend, bei zu großem Schneidwiderstand von der Lochoberfläche zurückweichen können.Reamer with knives mounted in grooves with a semicircular cross-section, whose cutting face extends radially, characterized in that between the knives Cover strips are arranged on the reamer body, the recess in front of the cutting face with a resilient longitudinal side overlap, so that the knife, rotating about its longitudinal axis, if too large Cutting resistance can recede from the hole surface.
DEB115488D 1924-09-03 1924-09-03 Reamer with knives mounted in grooves with a semicircular cross-section Expired DE434381C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB115488D DE434381C (en) 1924-09-03 1924-09-03 Reamer with knives mounted in grooves with a semicircular cross-section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB115488D DE434381C (en) 1924-09-03 1924-09-03 Reamer with knives mounted in grooves with a semicircular cross-section

Publications (1)

Publication Number Publication Date
DE434381C true DE434381C (en) 1926-09-21

Family

ID=6994038

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB115488D Expired DE434381C (en) 1924-09-03 1924-09-03 Reamer with knives mounted in grooves with a semicircular cross-section

Country Status (1)

Country Link
DE (1) DE434381C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005729A1 (en) * 1985-03-27 1986-10-09 Potemkin Gennady Y Instrument for machining of openings

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005729A1 (en) * 1985-03-27 1986-10-09 Potemkin Gennady Y Instrument for machining of openings
GB2184047B (en) * 1985-03-27 1989-07-12 Potemkin Gennady Y A tool for machining holes
AT389831B (en) * 1985-03-27 1990-02-12 Potemkin Gennady Y HOLE TOOLING TOOL

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