DE8716693U1 - Formwork / installation drill - Google Patents

Formwork / installation drill

Info

Publication number
DE8716693U1
DE8716693U1 DE8716693U DE8716693U DE8716693U1 DE 8716693 U1 DE8716693 U1 DE 8716693U1 DE 8716693 U DE8716693 U DE 8716693U DE 8716693 U DE8716693 U DE 8716693U DE 8716693 U1 DE8716693 U1 DE 8716693U1
Authority
DE
Germany
Prior art keywords
formwork
drill
installation
drill head
pin
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
DE8716693U
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.)
Wilms Joerg H Dipl-Ing (fh) 5630 Remscheid De
Original Assignee
Wilms Joerg H Dipl-Ing (fh) 5630 Remscheid De
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 Wilms Joerg H Dipl-Ing (fh) 5630 Remscheid De filed Critical Wilms Joerg H Dipl-Ing (fh) 5630 Remscheid De
Priority to DE8716693U priority Critical patent/DE8716693U1/en
Publication of DE8716693U1 publication Critical patent/DE8716693U1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005—Cylindrical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2215/00—Details of workpieces
    • B23B2215/72—Tubes, pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0252—Shanks having a section of reduced diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/02—Connections between shanks and removable cutting heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)

Description

Die Erfindung betrifft einen neuartigen Schalungs—/installations— bohrer, der aus einem ChromVanadium — Bohrkopf und einem Stahlrohr zusammengesetzt ist.The invention relates to a novel formwork/installation drill, which is composed of a chrome-vanadium drill head and a steel tube.

Laut DIN-Entwurf werden di« Schalungs-ZInstallationsbohrer in den Durchmessern 8-39 mn und in den Gesarat längen 400 — 1000 mm hergestellt. According to the DIN draft, the formwork installation drills are manufactured in diameters of 8-39 mm and in total lengths of 400 - 1000 mm.

Laut DIN-Entwurf (s.a. Anlage Wjr A—1} soll das Material des Bohrerkopfes (dort Arbeitsende genannt) mindestens aus Stahl der Güte C—· bestehen.According to the DIN draft (see also Annex Wjr A— 1}, the material of the drill head (called the working end there) should consist of at least steel of grade C—·.

Nach gültigem Stand der Technik verbinden die Hersteller den Bohrerkopf (meist aus ChromVanadium- oder HSS-Me.terial gefertigt) mit einem nicht weiter klassifizierten Vollstahlschaft entweder durch Schweißen (Stumpfschweißen) oder durch aufbohren des Bohrerkopfes und einsetzen des Vollstahlschaftes. Teilweise wird in den Bohrerkopf ein Innengewinde geschnitten und die mit Außengewinde versehene Stange (Vollstahlschaft) eingeschraubt und möglicherweise zusätzlich geklebt.According to the current state of the art, manufacturers connect the drill head (usually made of chrome-vanadium or HSS material) with a non-classified solid steel shaft either by welding (butt welding) or by drilling out the drill head and inserting the solid steel shaft. In some cases, an internal thread is cut into the drill head and the rod with the external thread (solid steel shaft) is screwed in and possibly also glued.

AufgabeTask

Der Erfindung liegt die Aufgebe zugrunde, das fertige Bohrerprodukt leichter zu gestalten und so die Arbeitssicherheit zu fördern. Weiterhin soll die dem bereits fertigen Bohrerkopf nicht förderliche Wärmezufuhr durch Schweißen vermieden werden.The invention is based on the task of making the finished drill product lighter and thus promoting occupational safety. Furthermore, the heat supply through welding, which is not beneficial to the already finished drill head, should be avoided.

Lösung (siehe auch Zeichnung· Wir A--2)Solution (see also drawing· We A--2)

Diese Aufgabe wird erfindungsgemaß dadurch gelöst, daß der fertige Bohrerkopf nur noch angedreht (Zapfen), der fertige Zapfen zusätzlic mit Längskerben (Prinzip Kerbstift zum Festkrallen des härteren Bohrerkopfes in dem weicheren Rohrmaterial) versehen und anschließer in das Rohr eingepreßt wird.This object is achieved according to the invention in that the finished drill head is only turned (tenon), the finished tenon is additionally provided with longitudinal notches (notch pin principle for firmly gripping the harder drill head in the softer pipe material) and is then pressed into the pipe.

Schalungs- / Installationsbohrer Wjr 3Formwork / installation drill Wjr 3

Erzielbarer VorteilAchievable advantage

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin. &iacgr; daß der fertige Schalungs—/Installationsbohrer wegen des Rohrschaftes J wesentlich leichter ist iais das entswecnewae werkzeug fisit voristähi- &rgr; schaft) und gerade so bei Bohrarbeiten an schwer zugänglichen Stellen I (z.B. Überkopf) die Handhabung vereinfacht und somit die Arbeits- I sicherheit fördert. |The advantages achieved with the invention are in particular that the finished formwork/installation drill is considerably lighter than the tool used due to the tubular shaft (shaft) and this simplifies handling when drilling in places that are difficult to access (e.g. overhead) and thus promotes work safety. |

Da dex* bereits fertig bear2se.itei*, gehärtete und angelassene Bohrer— % kopf nicht erneut einer Wärmezufuhr (durch Schweißen) ausgesetzt wird, | entfallen Fehlerquellen wie z.B. Ausglühen des Bohrerkopfes während des! Schweißvorganges. ]·Since the already finished, hardened and tempered drill head is not exposed to heat again (through welding), sources of error such as annealing of the drill head during the welding process are eliminated. ]·

Schalungs- / Installationsbohrer Wir 4Formwork / Installation Drills We 4

Zusammenf assuncrSummary

Der neuartige Schalungs—/Installationsbohrer wird aus dem bekannten - aber zusätzlich mit einem Zapfen versehenen — Bohrerkopf und eineia Rohr zusammengesetzt.The new formwork/installation drill is made up of the familiar drill head - but with an additional tenon - and a tube.

Zusätzlich zum Preßsitz wird die Verbindung durch Längskerben auf dem Zapfen (Prinzip: Kerbstift) gesichert.In addition to the press fit, the connection is secured by longitudinal notches on the pin (principle: grooved pin).

Das offene Rohrende des Bohrers ist mit einem Kunststoff-Verschlußstopf en gegen Schmutzeindringen gesichert. Gleichzeitig hat dieser Stopfen eine besondere Funktion als Anschlagpuffer im Bohrfutter-The open tube end of the drill is protected against dirt ingress with a plastic plug. At the same time, this plug has a special function as a stop buffer in the drill chuck.

2 Q-*-2 Q-*-

Claims (2)

Schalung-s— / Instai lationsbohrer Wi r AnsprucneFormwork-s— / Installation drills We demand 1) Der Bohrerkopf ist mit einem Zapfen versehen und dadurch gekennzeichnet, daß dieser Zapfen mit Kerben fKerfcstiftprinzip) verseher unter Preßsitz in ein Rohr eingepreßt ist.1) The drill head is provided with a pin and is characterized by the fact that this pin is provided with notches (notch pin principle) and is pressed into a pipe with a press fit. 2) Das offene Bohrerende fRohrl ist dadurch gekennzeichnet, daß es mit einem Kunststoffstopfen verschlossen ist.2) The open drill end fRohrl is characterized by the fact that it is closed with a plastic plug.
DE8716693U 1987-10-21 1987-10-21 Formwork / installation drill Expired DE8716693U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8716693U DE8716693U1 (en) 1987-10-21 1987-10-21 Formwork / installation drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8716693U DE8716693U1 (en) 1987-10-21 1987-10-21 Formwork / installation drill

Publications (1)

Publication Number Publication Date
DE8716693U1 true DE8716693U1 (en) 1988-06-09

Family

ID=6815255

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8716693U Expired DE8716693U1 (en) 1987-10-21 1987-10-21 Formwork / installation drill

Country Status (1)

Country Link
DE (1) DE8716693U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3931536A1 (en) * 1988-09-22 1990-04-05 Yoshinobu Kobayashi Miniature twist drill - inserted in bore of shank with its plain end soldered

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3931536A1 (en) * 1988-09-22 1990-04-05 Yoshinobu Kobayashi Miniature twist drill - inserted in bore of shank with its plain end soldered

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