DE567737C - Taps - Google Patents
TapsInfo
- Publication number
- DE567737C DE567737C DENDAT567737D DE567737DD DE567737C DE 567737 C DE567737 C DE 567737C DE NDAT567737 D DENDAT567737 D DE NDAT567737D DE 567737D D DE567737D D DE 567737DD DE 567737 C DE567737 C DE 567737C
- Authority
- DE
- Germany
- Prior art keywords
- strips
- taps
- face
- order
- tap according
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/06—Taps
Description
Gegenstand der Erfindung ist ein Gewindebohrer, bei dem gehärtete glatte Messerleisten in entsprechende Längsnuten des Bohferschaftes eingepreßt sind und in die Leisten und zugleich in die hinter ihnen liegenden Rückenleisten das. Gewinde · eingeschliffen ist.The invention relates to a tap in which hardened, smooth knife strips in corresponding longitudinal grooves of the drill shaft are pressed and in the strips and at the same time in the back strips lying behind them the thread · is ground in.
Hierbei werden als bekannt vorausgesetzt erstens Gewindebohrer mit auswechselbar eingesetzten
Schneiden, zweitens das Schleifen ο von Gewinden aus dem Vollen bei Gewindebohrern
und drittens-Reibahlen sowie Fräser mit nicht auswechselbar eingesetzten Messern.
Die Fig. 1, 2 und 3 zeigen eine Ausführungsform eines solchen Bohrers;
die Fig. 6, 7 und 8 zeigen eine andere Ausführungsform;
Here, it is assumed that taps with replaceable cutting edges are known, secondly, the grinding ο of threads from solid materials in taps and thirdly reamers as well as milling cutters with non-replaceable blades. Figures 1, 2 and 3 show an embodiment of such a drill;
Figures 6, 7 and 8 show another embodiment;
die Fig. 4 und 5 zeigen einen Längsschnitt und eine Ansicht eines Bohrers.4 and 5 show a longitudinal section and a view of a drill.
Der Bohrerschaft wird mit Längsnuten 1 ao versehen, die zur Aufnahme der Messer dienen. Die Messer werden als glatte Leisten 3 hergestellt und gehärtet. Alsdann werden sie in die Nuten 1 stramm eingepreßt. Zum leichteren Einführen können die Nuten und entsprechend die Messer im Querschnitt eine schwach konische Form erhalten. Hierauf wird das gewünschte Gewinde in die eingesetzten Leisten eingeschliffen und zugleich in die hinter diesen Leisten zur Unterstützung angeordneten Rückenleisten 2.The drill shank is provided with longitudinal grooves 1 ao for receiving the knife to serve. The knives are produced as smooth strips 3 and hardened. Then they will pressed tightly into the grooves 1. For easier insertion, the grooves and can be used accordingly the knives have a slightly conical shape in cross-section. The desired thread is then inserted into the Moldings ground in and at the same time in the support behind these moldings arranged back strips 2.
Die Ausführungsform nach Fig. 1 bis 3 kommt zweckmäßig dann zur Anwendung, wenn der kegelförmige Anschliff selbst zum Schärfen des Gewindes nachgeschliffen wird, wenn also das Schleifen auf der Mantelfläche erfolgt; Wenn indessen die Zahnbrust nachgeschliffen wird, dann kommt zweckmäßig die Ausführungsform nach Fig. 6 bis 8 zur Anwendung, bei der die eingesetzten Messerleisten vorn eine Schulter 4 haben, um Material für den Nachschliff zu schaffen.The embodiment according to FIGS. 1 to 3 is expediently used if the conical bevel itself is reground to sharpen the thread, So if the grinding takes place on the lateral surface; If, however, the tooth face is sharpened then the embodiment according to FIGS. 6 to 8 is expediently used, in which the male connectors used have a shoulder 4 at the front to create material for regrinding.
Mittels dieses Verfahrens lassen sich Gewindebohrer in jeder Abmessung herstellen, da keine besonderen Befestigungsmittel für die Messerleisten notwendig sind. Die Genauigkeit ist so groß, daß selbst lange Bohrer z. B. für Stehbolzenlöcher herstellbar sind.Using this process, taps can be produced in any dimension, as no special fasteners are required for the male connector. The precision is so big that even long drills z. B. can be produced for stud holes.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE567737T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE567737C true DE567737C (en) | 1933-01-09 |
Family
ID=6567919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT567737D Expired DE567737C (en) | Taps |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE567737C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1167623B (en) * | 1960-07-02 | 1964-04-09 | Hirschmann Radiotechnik | Tool for enlarging pre-drilled holes in parts with a low wall thickness |
| DE3635655A1 (en) * | 1986-10-21 | 1988-04-28 | Fette Wilhelm Gmbh | TAP DRILL |
| DE3921734A1 (en) * | 1989-07-01 | 1991-01-10 | Schmitt M Norbert Dipl Kaufm D | Internal thread milling cutter - has replaceable inserts permitting combined machining of core diameter and thread form |
| DE3934621A1 (en) * | 1989-10-17 | 1991-04-18 | Willi Buchwald | Tap for chipless forming of screw threads - has hard metal inserts running along tap in regions of highest forming stress |
-
0
- DE DENDAT567737D patent/DE567737C/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1167623B (en) * | 1960-07-02 | 1964-04-09 | Hirschmann Radiotechnik | Tool for enlarging pre-drilled holes in parts with a low wall thickness |
| DE3635655A1 (en) * | 1986-10-21 | 1988-04-28 | Fette Wilhelm Gmbh | TAP DRILL |
| DE3921734A1 (en) * | 1989-07-01 | 1991-01-10 | Schmitt M Norbert Dipl Kaufm D | Internal thread milling cutter - has replaceable inserts permitting combined machining of core diameter and thread form |
| DE3934621A1 (en) * | 1989-10-17 | 1991-04-18 | Willi Buchwald | Tap for chipless forming of screw threads - has hard metal inserts running along tap in regions of highest forming stress |
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