DE8716693U1 - Formwork / installation drill - Google Patents
Formwork / installation drillInfo
- 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
Links
- 238000009434 installation Methods 0.000 title claims description 8
- 238000009415 formwork Methods 0.000 title description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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.
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
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
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)
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)
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 |
-
1987
- 1987-10-21 DE DE8716693U patent/DE8716693U1/en not_active Expired
Cited By (1)
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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