DE885335C - Reamer - Google Patents

Reamer

Info

Publication number
DE885335C
DE885335C DEG6351A DEG0006351A DE885335C DE 885335 C DE885335 C DE 885335C DE G6351 A DEG6351 A DE G6351A DE G0006351 A DEG0006351 A DE G0006351A DE 885335 C DE885335 C DE 885335C
Authority
DE
Germany
Prior art keywords
knife
knives
reamer
bore
knife carrier
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
DEG6351A
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
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 Individual filed Critical Individual
Priority to DEG6351A priority Critical patent/DE885335C/en
Application granted granted Critical
Publication of DE885335C publication Critical patent/DE885335C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B29/00Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/03Boring heads
    • B23B29/034Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
    • B23B29/03403Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing
    • B23B29/03407Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by means of screws and nuts
    • B23B29/0341Cartridges
    • 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
    • B23D77/04Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length
    • B23D77/044Reamers with inserted cutting edges with cutting edges adjustable to different diameters along the whole cutting length by means of screws

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)

Description

Die Erfindung bezieht sich auf eine Reibahle oder eine sogenannte Reibstange, bei welcher in einer quer verlaufenden Ausnehmung des Messerträgers nveiMesser verschiebbar angeordnet sind, deren Schneidenabstand einstellbar ist. Diese Reibahlen haben den Vorteil, daß sich die Messer unter dem Schnittdruck so einstellen, daß der Schnittdruck sich auf beide Schneiden gleichmäßig verteilt. Alle bisher bekannten Reibahlen der oben beschriebenen Bauart haben für die Herstellung den Nachteil, daß es sich bei der quer verlaufenden Ausnehmung des Messerträgers um einen Schlitz ovalen oder rechteckigen Querschnitts handelt, dessen Herstellung wegen der erforderlichen Genauigkeit :den Preis der Reibahle verteuert.The invention relates to a reamer or a so-called Friction bar, in which in a transverse recess of the knife carrier nvei knives are arranged displaceably, the distance between the cutting edges is adjustable. These reamers have the advantage that the knife is so under the cutting pressure set that the cutting pressure is evenly distributed on both cutting edges. All previously known reamers of the type described above have for the production the disadvantage that there is the transverse recess of the knife carrier is a slot of oval or rectangular cross-section, its manufacture because of the required accuracy: the price of the reamer increases.

Dieser Nachteil ist bei der den Gegenstand der Erfindung bildenden Reibahle :dadurch vermieden worden, daß erfindungsgemäß zwei im Querschnitt halbkreisförmige Messer gegen Drehung gesichert in einer Bohrung des Messerträgers aufgenommen sind. Eine.Bohrungisübilligundschnellherzustellen.This disadvantage is the subject of the invention Reamer: has been avoided according to the invention that two semicircular in cross-section Knives secured against rotation are received in a bore in the knife carrier. To produce a drilling that is cheap and fast.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt.The drawing shows an embodiment of the subject matter of the invention shown.

Fig. i zeigt eine Reibstange mit eingesetzten Messern von der Seite gesehen; Fig. 2 zeigt eine zugehörige Draufsicht; Fig. 3 zeigt die aus ,dem Messerträger herausgenommenen Messer in größerem Malistab gezeichnet von .der Seite gesehen; die Fig.4 und 5 stellen Querschnitte- nach den Linien A-13 und C-D der Fig. 3 dar; Fig. 6 ist ein Längsschnitt nach der Linie E-F der Fig. 4.Fig. I shows a grater with inserted knives from the side seen; Fig. 2 shows a corresponding plan view; Fig. 3 shows the from, the knife carrier removed knife in a larger pencil drawn from the side; Figures 4 and 5 are cross-sections along lines A-13 and C-D of Figure 3; FIG. 6 is a longitudinal section on the line E-F of FIG. 4.

Zur Aufnahme der Messer ist die Reibahle oder die zylindrische Rebstange.i mit einer gewöhnlichen, quer verlaufenden Bohrung 2. versehen, in welcher die beiden einen halbkreisförmigen Querschnitt aufweisenden SMesser 3, 4 aufgenommen sind. Unter dem Begriff Messer wird hier der ganze Messerkörper verstanden. Bei der praktischen Ausführung befintden sich die Schneiden 5 an besonderen, mit den Messerkörpern fest verbundenen Hartmetalleisten 6. Das Messer 3 ist oben mit einer -längs verlaufenden Nut 7 versehen, in welche eine in der Reibstange befimdliche kleine Wurmschraube 8 eingreift, wodurch die Messer innerhalb der Bohrung 2 gegen Verdrehung gesichert sind. Die beiden Messer 3, 4 sind durch 'innenliegende Federn stets auseinandergedrückt, so daB sie sich federnd innerhalb der Bohrung 2 festhalten. Im übrigen sind aber die beiden Messer 3, 4 in ihrer Längsrichtung innerhalb der Bohrung 2 frei verschiebbar. Im gezeichneten Beispiel sind in Ausnehmungen 9 des Messers 3 kleine Blattfedern io untergebracht, die sich auf der inneren Planfläche des Messers 4 abstützen, wie aus Fig. 4 und 6 ersichtlich.The reamer or the cylindrical vine bar is used to hold the knife. I provided with an ordinary, transverse bore 2. in which the two S knives 3, 4 having a semicircular cross-section are added. The term knife is understood here to mean the entire knife body. In the practical Execution, the cutting edges 5 are fixed on special ones with the knife bodies connected hard metal strips 6. The knife 3 is at the top with a -longitudinal Groove 7, in which a small worm screw is located in the friction rod 8 engages, whereby the knife is secured against rotation within the bore 2 are. The two knives 3, 4 are always pushed apart by internal springs, so that they are resiliently held within the bore 2. Otherwise, however the two knives 3, 4 are freely displaceable in their longitudinal direction within the bore 2. In the example shown, there are 3 small leaf springs in recesses 9 of the knife io housed, which are supported on the inner plane surface of the knife 4, such as from FIGS. 4 and 6 can be seen.

Im Messer 3 befindet sich ein Bolzen üi, der in ein Langloch 12 des Messers 4 eingreift. In einer Längsbohrung 13 des @Messers4liegt eine Einstellschraube 14, die in eine Gewindebohrung ,i 5 des Bolzens ia eingreift. Für den Schraubenkopf 114' ist innerhalb des Messers 4 eine Anlage ih vorgesehen. Der Schraubenkopf r4' ist von außen ohne weiteres zugänglich. Wird die Schraube in den Bolzen m eingeschraubt, dann findet eine gegenseitige Verschiebung der beiden Messer 3, ¢ im Sinne einer Vergrößerung des Schneidenabstands statt. Wird die Einstellschraube aus dem Bolzen, i i herausgedreht, dann sind die beiden Messer 3, 4 von Hand gegeneinander verschiebbar.In the knife 3 there is a bolt üi, which is in an elongated hole 12 of the Knife 4 engages. An adjusting screw is located in a longitudinal bore 13 of the knife 4 14, which engages in a threaded hole, i 5 of the bolt ia. For the screw head 114 ′, a system ih is provided within the knife 4. The screw head r4 ' is easily accessible from the outside. If the screw is screwed into the bolt m, then there is a mutual displacement of the two knives 3, ¢ in the sense of a Enlargement of the cutting edge distance instead. If the adjusting screw is removed from the bolt, i i unscrewed, then the two knives 3, 4 can be moved against each other by hand.

Claims (1)

PATENTANSPRUCH: Reibahle mit in einer quer verlaufenden Ausnehmung des Messerträgers verschiebbaren Messern, deren Schnendenabstand einstellbar ist, dadurch gekennzeichnet, . daß zwei im Querschnitt halbkreisförmige Messer (3, 4) gegen Drehung gesichert m einer Bohrung (2) des Messerträgers (i) aufgenommen. sind. Angezogene Druckschriften: Schweizerische Patentschriften Nr. 119770., 245 445: französische Patentschrift Nr. 956 2L-ii ; deutsche Patentschrift Nr. 8'i 5 288. PATENT CLAIM: Reamer with knives displaceable in a transverse recess of the knife carrier, the distance between the cutting edges being adjustable, characterized in that. that two in cross-section semicircular knife (3, 4) secured against rotation m a bore (2) of the knife carrier (i) added. are. Cited publications: Swiss patent specifications No. 119770., 245 445: French patent specification No. 956 2L-ii; German Patent No. 8'i 5 288.
DEG6351A 1951-06-20 1951-06-20 Reamer Expired DE885335C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG6351A DE885335C (en) 1951-06-20 1951-06-20 Reamer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG6351A DE885335C (en) 1951-06-20 1951-06-20 Reamer

Publications (1)

Publication Number Publication Date
DE885335C true DE885335C (en) 1953-08-03

Family

ID=7118086

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG6351A Expired DE885335C (en) 1951-06-20 1951-06-20 Reamer

Country Status (1)

Country Link
DE (1) DE885335C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2811056A (en) * 1955-08-15 1957-10-29 Jr Marsden C Hutto Adjustable cutter tool
US3124980A (en) * 1964-03-17 Boring cutter
DE1270363B (en) * 1962-09-10 1969-05-14 Madison Entpr Inc Cutting tool for a boring bar
US4163624A (en) * 1977-02-09 1979-08-07 Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh Toolholder for recessing operations, in particular a boring bar
US4288184A (en) * 1979-02-22 1981-09-08 Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh Boring tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH119770A (en) * 1925-06-02 1927-04-16 Brown David & Sons Ltd Extendable reamer.
CH245445A (en) * 1945-04-10 1946-11-15 Ag Beral Adjustable reamer.
FR956221A (en) * 1950-01-27
DE815288C (en) * 1950-01-10 1951-10-01 Koyemann Nachf Puchstein & Co Reamer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR956221A (en) * 1950-01-27
CH119770A (en) * 1925-06-02 1927-04-16 Brown David & Sons Ltd Extendable reamer.
CH245445A (en) * 1945-04-10 1946-11-15 Ag Beral Adjustable reamer.
DE815288C (en) * 1950-01-10 1951-10-01 Koyemann Nachf Puchstein & Co Reamer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124980A (en) * 1964-03-17 Boring cutter
US2811056A (en) * 1955-08-15 1957-10-29 Jr Marsden C Hutto Adjustable cutter tool
DE1270363B (en) * 1962-09-10 1969-05-14 Madison Entpr Inc Cutting tool for a boring bar
US4163624A (en) * 1977-02-09 1979-08-07 Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh Toolholder for recessing operations, in particular a boring bar
US4288184A (en) * 1979-02-22 1981-09-08 Komet Stahlhalter- Und Werkzeugfabrik Robert Breuning Gmbh Boring tool

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