DE505011C - Tapping head with tapered mandrel for cutting tapered threads - Google Patents
Tapping head with tapered mandrel for cutting tapered threadsInfo
- Publication number
- DE505011C DE505011C DEB131258D DEB0131258D DE505011C DE 505011 C DE505011 C DE 505011C DE B131258 D DEB131258 D DE B131258D DE B0131258 D DEB0131258 D DE B0131258D DE 505011 C DE505011 C DE 505011C
- Authority
- DE
- Germany
- Prior art keywords
- cutting
- tapered
- jaws
- mandrel
- tapping head
- 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
- B23G5/08—Thread-cutting tools; Die-heads with means for adjustment
- B23G5/14—Tapping-heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Description
Bei Gewindebohrköpfen mit kegeligem Leitdorn für in Schlitzen angeordnete Schneidbacken zum Schneiden von kegeligem Gewinde bestellt der Übelstand, daß sich die Schneidbacken infolge des tangential wirkenkenden Schneiddruckes manchmal ungleichmäßig ruckweise verschieben.For tapping heads with a conical guide mandrel for cutting jaws arranged in slots for cutting tapered threads ordered the disadvantage that the Cutting jaws sometimes uneven as a result of the tangential cutting pressure move jerkily.
Die Erfindung ist bestimmt, dem geschilderten Übelstand abzuhelfen; sie kennzeichnet sich wesentlich dadurch, daß am Rücken der Schneidbacken angeordnete Führungsrollen die Backen gegen den tangential gerichteten Schneiddruck abstützen, während vor der Brust der Schneidbacken Rückführfedern angebracht sind. Die Federn liegen also jedesmal den Führungsrollen gegenüber. Der Querschnitt des Schneidkopfkörpers reicht für die Unterbringung der Federn einerseits, der Rollenführung anderseits aus.The invention is intended to remedy the deficiency described; it identifies is essentially characterized by the fact that guide rollers arranged on the back of the cutting jaws move the jaws against the tangentially directed one Support cutting pressure while return springs are attached in front of the jaws chest. The feathers are lying so each time towards the leadership roles. The cross section of the cutting head body is sufficient for accommodating the springs on the one hand and the roller guide on the other the end.
Auf der Zeichnung ist die Erfindung in einer Ausführungsform beispielsweise dargestellt, und zwar für einen Bohrkopf zum Schneiden eines doppelkegeligen Gewindes; es zeigen Abb. 1 das Werkzeug im Längsschnitt, Abb. 2 das Werkzeug von oben gesehen, teilweise im Schnitt nach der Linie A-B der Abb. 1.In the drawing, the invention is shown in one embodiment, for example, for a drill head for cutting a double-conical thread; Fig. 1 shows the tool in longitudinal section, Fig. 2 shows the tool seen from above, partly in section along the line AB in Fig. 1.
In die Muffe 1 soll doppelkegeliges Gewinde geschnitten werden. Im Kern des Körpers 2 des . Gewindebohrkopfes ist der doppelkegelige Leitdorn 3 angeordnet. Die Gewindeschneidbacken 4 werden, damit sie stets am Leitdorn 3 anliegen, mittels an der Brustseite angeordneter Federn 7 durch BoI-zen 8, welche im Bohrkopfkörper 2 angeordnet sind, gegen den Leitdorn 3 hin gedrängt.The socket 1 should have a double-conical thread get cut. In the core of the body 2 of the. The double-conical guide mandrel 3 is arranged on the tapping head. the Thread cutting jaws 4 are so that they always rest on the mandrel 3, by means of the Springs 7 arranged on the chest side by means of bolts 8, which are arranged in the drill head body 2 are pushed against the guide mandrel 3 out.
Durch die an der Rückenseite der Backen gegenüber den Rückführfedern 7 im Schneidkopfkörper 2 gelagerten Führungsrollen 6 werden die Backen gegen den tangential wirkenden Schneiddruck abgestützt, so daß sie sich bei ihrer Ein- und Auswärtsbewegung stetig verschieben.By on the back of the jaws opposite the return springs 7 in the cutting head body 2 mounted guide rollers 6, the jaws are supported against the tangentially acting cutting pressure, so that they move steadily as they move in and out.
Das kegelige Gewinde 10 wird von dem unteren Teil 11 der Schneidbacken, das zweite kegelige Gewinde 12 mittels des oberen Teils 13 der Schneidbacken erzeugt.The tapered thread 10 is of the lower part 11 of the die, the second tapered thread 12 generated by means of the upper part 13 of the cutting jaws.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB131258D DE505011C (en) | Tapping head with tapered mandrel for cutting tapered threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB131258D DE505011C (en) | Tapping head with tapered mandrel for cutting tapered threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE505011C true DE505011C (en) | 1930-08-12 |
Family
ID=6997817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB131258D Expired DE505011C (en) | Tapping head with tapered mandrel for cutting tapered threads |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE505011C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE744125C (en) * | 1940-11-26 | 1944-01-10 | Boley Werkzeug U Maschinenfabr | Device for the production of bores with a curved surface line |
-
0
- DE DEB131258D patent/DE505011C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE744125C (en) * | 1940-11-26 | 1944-01-10 | Boley Werkzeug U Maschinenfabr | Device for the production of bores with a curved surface line |
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