DE189583C - - Google Patents

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Publication number
DE189583C
DE189583C DENDAT189583D DE189583DA DE189583C DE 189583 C DE189583 C DE 189583C DE NDAT189583 D DENDAT189583 D DE NDAT189583D DE 189583D A DE189583D A DE 189583DA DE 189583 C DE189583 C DE 189583C
Authority
DE
Germany
Prior art keywords
tools
shafts
drill
grooves
conical
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.)
Active
Application number
DENDAT189583D
Other languages
German (de)
Publication of DE189583C publication Critical patent/DE189583C/de
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/006Conical shanks of tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2231/00Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0204Connection of shanks to working elements of tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2231/00Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/026Grooves
    • B23B2231/0264Axial grooves
    • 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

Landscapes

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

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Bisher ist es gebräuchlich, Bohr- und Fräswerkzeuge durch Einlöten in den Schäften zu befestigen. Dieses Verfahren hat die Nachteile, daß es sehr teuer ist und die Werkzeuge in den Schäften doch nicht derart befestigt sind, daß ihr Ausdrehen bei größeren zu überwindenden Widerständen ausgeschlossen wäre.So far it is common to drill and mill tools by soldering them into the shafts to fix. This method has the disadvantages that it is very expensive and the Tools in the shafts are not fastened in such a way that they can be unscrewed larger resistances to be overcome would be excluded.

Durch das den Erfindungsgegenstand bil-By forming the subject of the invention

dende Verfahren werden diese Übelstände dadurch beseitigt, daß nach diesem die Bohrer nicht mehr eingelötet, sondern mit Riefen versehen und in die Bohrungen der Schäfte eingepreßt werden. Da letztere aus weicherem Material als die Werkzeuge bestehen, so wird durch das Einpressen dieser Werkzeuge in die Schäfte, deren Bohrungen von kleinerem Durchmesser als derjenige der Werkzeuge sind, ein Teil des Schaftmateriales in die Riefen der Werkzeuge verdrängt und befestigt dieselben dauernd.These inconveniences are eliminated by the fact that after this the drill no longer soldered in, but provided with grooves and in the bores of the shafts be pressed in. Since the latter are made of a softer material than the tools, so will by pressing these tools into the shafts, whose bores are of smaller size Diameter than that of the tools, part of the shank material into the The grooves of the tools displace and fix them permanently.

Da das Material der Schäfte wie auch das der Bohrer eine viel größere Festigkeit als das Lot besitzt, so hat dieses Befestigungsverfahren auch eine viel größere Sicherheit zur Folge.Since the material of the shafts as well as that of the drill have a much greater strength than owns the solder, this method of fastening is also much more secure result.

Auf beiliegender Zeichnung ist eine beispielsweise Ausführungsform eines nach dem erfundenen Verfahren in einem Schafte befestigten Bohrers dargestellt, und zwar zeigtOn the accompanying drawing is an example embodiment of one according to the invented method shown in a shaft attached drill, namely shows

Fig. ι eine Ansicht mit teilweisem Schnitt undFig. Ι a view with partial section and

Fig. 2 einen Querschnitt nach der Linie x-x der Fig. I.Fig. 2 shows a cross section along the line xx of Fig. I.

Der obere Teil des Bohrers α ist mit Riefen b versehen und zwecks leichteren Eindringens in die Bohrung des konischen Schaftes rf am Ende etwas konisch ausgebildet. Wird das Werkzeug nun in die in ihrem Durchmesser etwas kleinere Bohrung eingepreßt, so tritt das Material des Schaftes zwischen die Riefen des Bohrers ein (Fig. 2), so daß beide ein fest verbundenes, starres Ganzes bilden. Ein Ausdrehen des Bohrers ist bei dieser Befestigungsart vollständig ausgeschlossen, da in diesem Falle erst ein Querschnitt von der Mantelfläche des im Konus befindlichen Werkzeugteiles abgescheert werden müßte.The upper part of the drill α is provided with grooves b and is somewhat conical at the end for the purpose of easier penetration into the bore of the conical shaft rf. If the tool is now pressed into the bore, which is somewhat smaller in diameter, the material of the shank enters between the grooves of the drill (Fig. 2), so that both form a firmly connected, rigid whole. Unscrewing the drill is completely excluded with this type of fastening, since in this case a cross section would first have to be sheared off from the outer surface of the tool part located in the cone.

Claims (1)

Patent- Anspruch :Patent claim: Verfahren zum Befestigen von Bohr- und Fräswerkzeugen in konischen oder anders geformten Schäften, dadurch gekennzeichnet, daß die in die Schäfte einzuschiebenden Teile der Werkzeuge mit Riefen versehen und in die glatten Bohrungen der Schäfte eingepreßt werden, wodurch das Material der letzte'ren in die Riefen der Werkzeuge fließt und beide Teile zu einem starren Ganzen verbindet. 'Method for fastening drilling and milling tools in conical or differently shaped shafts, characterized in that the to be pushed into the shafts Score parts of the tools and insert them into the smooth holes of the shafts are pressed in, whereby the material of the latter flows into the grooves of the tools and both It connects parts to a rigid whole. ' Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT189583D Active DE189583C (en)

Publications (1)

Publication Number Publication Date
DE189583C true DE189583C (en)

Family

ID=453114

Family Applications (1)

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DE (1) DE189583C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750191C (en) * 1938-08-23 1944-12-18 Wilhelm Schaefer Process for the production of lead pens for filling pencils provided with a thread and a prismatic guide part
US2578351A (en) * 1947-10-27 1951-12-11 Rip Bits Ltd Method of making rock drill bits
DE940801C (en) * 1953-01-25 1956-03-29 Winter & Sohn Ernst Spread socket
US3053118A (en) * 1960-04-29 1962-09-11 Lavallee & Ide Inc Method of manufacturing reamers
WO1982004412A1 (en) * 1981-06-16 1982-12-23 Friedli Paul Drilling bit and utilization of this bit for the drilling of printed circuits
DE3735543A1 (en) * 1987-10-21 1988-03-17 Wilms Joerg H Dipl Ing Fh Shuttering installation drill and its method of manufacture
WO2015054708A1 (en) * 2013-10-16 2015-04-23 Ceratizit Austria Gesellschaft M.B.H. Machining tool and method for producing a machining tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750191C (en) * 1938-08-23 1944-12-18 Wilhelm Schaefer Process for the production of lead pens for filling pencils provided with a thread and a prismatic guide part
US2578351A (en) * 1947-10-27 1951-12-11 Rip Bits Ltd Method of making rock drill bits
DE940801C (en) * 1953-01-25 1956-03-29 Winter & Sohn Ernst Spread socket
US3053118A (en) * 1960-04-29 1962-09-11 Lavallee & Ide Inc Method of manufacturing reamers
WO1982004412A1 (en) * 1981-06-16 1982-12-23 Friedli Paul Drilling bit and utilization of this bit for the drilling of printed circuits
DE3735543A1 (en) * 1987-10-21 1988-03-17 Wilms Joerg H Dipl Ing Fh Shuttering installation drill and its method of manufacture
WO2015054708A1 (en) * 2013-10-16 2015-04-23 Ceratizit Austria Gesellschaft M.B.H. Machining tool and method for producing a machining tool

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