DE10002756A1 - Thread cutter for producing internal threads has at least two cutting sections with separating point in between to allow worn section to be removed and work continued with second section - Google Patents

Thread cutter for producing internal threads has at least two cutting sections with separating point in between to allow worn section to be removed and work continued with second section

Info

Publication number
DE10002756A1
DE10002756A1 DE2000102756 DE10002756A DE10002756A1 DE 10002756 A1 DE10002756 A1 DE 10002756A1 DE 2000102756 DE2000102756 DE 2000102756 DE 10002756 A DE10002756 A DE 10002756A DE 10002756 A1 DE10002756 A1 DE 10002756A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
section
sections
thread
separating
cutter
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.)
Withdrawn
Application number
DE2000102756
Other languages
German (de)
Inventor
Josef Scherz
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G7/00Forming thread by means of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material
    • B23G7/02Tools for this purpose
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G2200/00Details of threading tools
    • B23G2200/44Taps with more than one threading section, the threading sections being axially spaced from one another

Abstract

The thread length of the thread cutter (1) has at least two cutting sections (3, 6) each designed to produce a cut. A separating point (7) is provided between the sections so that one worn section can then be removed. Each section can have a tapered cone (4,8) and a guide part (5,9) and the guide part has lubricating grooves.

Description

Die Erfindung betrifft einen Gewindefurcher nach der im Oberbegriff von Anspruch 1 näher definierten Art. The invention relates to a thread former according to the closer defined in the preamble of claim 1.

Gewindefurcher, oder auch Gewindeformer genannt, stel len ein Gewinde in einem Werkstück her, indem sie mit schraubenförmiger Wirkfläche durch Eindrücken des Materials im Werkstück ein Gewinde im Werkstück herstellen. called forming taps, thread formers or, Set ting forth a thread in a workpiece by establishing helical effective area by pressing of the material in the workpiece, a thread in the workpiece. Durch die Verwendung von Gewindefurchern kann die Festigkeit des Ge windes erhöht werden, das Gewinde störungsfrei auf Automa ten hergestellt werden, da das Späneentfernen entfällt, und ein Gewinde mit hoher Maßgenauigkeit und hoher Oberflächen güte hergestellt wird. By using Gewindefurchern the strength of the wind Ge can be increased, the threads are manufactured without problems on automation th, since the chip removal is eliminated and a thread with a high dimensional accuracy and high surface quality is produced.

In der Deutschen Industrienorm 13 , Teil 50 , Ausgabe November 1986, ist eine Herstellung eines Innengewindes durch Gewindefurchen beschrieben. In the German Industrial Standard 13, part 50, November 1986 issue, a production of an internal thread is described by thread grooves.

Um mit einem Gewindefurcher rationell Innengewinde mit hoher Qualität herstellen zu können, muß der Gewindefurcher nach einer definierten Standzeit ausgetauscht werden, da der entstandene Verschleiß am Gewindefurcher durch die Her stellung von Gewinden nicht durch Nachschleifen, wie beim Gewindebohrer, behoben werden kann. In order to produce a thread former rationally internal thread with high quality, the thread former has to be replaced after a certain service life, since the resulting wear on the forming taps by Her position of threads not by regrinding, as in the taps, may be resolved. Somit ist nach Errei chen der Standzeit der gesamte Gewindefurcher durch einen neuen zu ersetzen. Thus, the service life of the entire thread former is to be replaced with a new one after Errei chen.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Gewindefurcher zu schaffen, welcher eine erhöhte Standzeit aufweist. The present invention has for its object to provide a thread forming tap which has an increased service life.

Die Aufgabe wird mit einem, auch die kennzeichnenden Merkmale des Hauptanspruchs aufweisenden, gattungsgemäßen Gewindefurcher gelöst. The object is achieved with an, having also the characterizing features of the main claim, generic thread former.

Erfindungsgemäß weist der Gewindefurcher zur Herstel lung eines Innengewindes im Bereich seiner Gewindelänge mindestens zwei Abschnitte auf, wobei jeder Abschnitt so ausgeführt ist, daß ein Innengewinde mit der gewünschten Qualität hergestellt werden kann. According to the invention, the thread former for the manufacture development of an internal thread in the region of its thread length on at least two sections, wherein each section is carried out so that an internal thread can be produced with the desired quality. Indem die Abschnitte hin tereinander angeordnet sind, kann bei Verschleiß eines er sten Abschnittes dieser vom Gewindefurcher abgetrennt und die Bearbeitung des Werkstücks mit dem zweiten Abschnitt fortgesetzt werden. By making the sections are disposed toward behind the other, may re-machining of the workpiece to be continued with the second section separated from the thread former and wear of he most portion. Die Anzahl der Abschnitte ist abhängig von dem Durchmesser des Gewindefurchers sowie dessen Ein satzbedingungen. The number of sections is set of conditions depending on the diameter of the thread former and its A. Auf einem Gewindefurcher sind mindestens zwei Abschnitte angeordnet, es können jedoch auch mehrere Abschnitte hintereinander angeordnet sein. On a thread former at least two sections are arranged, but it can also be a plurality of sections arranged in series. Vorzugsweise weist jeder Abschnitt einen Anlaufkegel und einen Führungs teil auf. Preferably, each section having a starting cone and a guide part. Die Trennstelle zwischen den Abschnitten ist vor zugsweise zylindrisch auszuführen, es sind jedoch auch an dere Formen der Trennstelle möglich, wie z. The point of separation between sections is cylindrical executed before Preferably, however, it is also possible to broader forms of separation point such. B. eine halb kreisförmige oder eine keilförmige Nut. As a semicircular or wedge-shaped groove. Bei Erreichen der Standzeit eines Abschnittes wird dieser vorzugsweise durch eine Trennscheibe von dem verbleibenden Gewindefurcher ab getrennt. Upon reaching the life of a portion of it is preferably separated by a separating disc of the remaining thread former from. Je nach Form der Trennstelle kann der Abschnitt jedoch auch anders abgetrennt werden, wie z. Depending on the shape of the separation point, however, the section can be separated otherwise such. B. durch er höhtes Aufbringen eines Drehmomentes. For example, by applying a torque he höhtes. Vorzugsweise ist der Gewindefurcher mit Schmiernuten auszuführen, um Kühl- und Schmiermittel zu den im Einsatz befindlichen Stellen zu fördern. Preferably, the thread former is carried out with lubrication grooves to promote cooling and lubricant to the in use positions. Vorzugsweise weist der Gewindefurcher mehrere Druckstege auf. Preferably, the thread former on a plurality of print webs. Die Anzahl der Druckstege ist in Abhängig keit von dem Material des Werkstückes, dem Gewindedurchmesser und der Steigung sowie der Länge des Anlaufkegels aus zuführen. The number of print webs is performed in Depending speed of the material of the workpiece, the thread diameter and the pitch and the length of the run-up cone of.

Weitere Merkmale sind der Figuren-Beschreibung zu ent nehmen. Other features include take ent of the figures description.

Es zeigen: Show it:

Fig. 1 den Längsschnitt durch einen Gewindefurcher; 1 is a longitudinal section through a thread former.

Fig. 2 den Querschnitt durch einen Gewindefurcher ohne Schmiernuten und Fig. 2 shows the cross section through a forming taps without lubrication and

Fig. 3 den Querschnitt durch einen Gewindefurcher mit Schmiernuten. Fig. 3 shows the cross section through a thread former with lubrication grooves.

Fig. 1 Fig. 1

Ein Gewindefurcher 1 weist eine Aufnahme 2 zum Einlei ten eines Drehmomentes auf. A thread forming tap 1 comprises a housing 2 for a torque Einlei th on. Ein erster Abschnitt 3 weist einen Anlaufkegel 4 auf, um ein einfacheres Ansetzen des Gewindefurchers im Werkstück zu ermöglichen, und weist ei nen Führungsteil 5 auf, welcher einerseits das Gewinde formt und andererseits den Gewindefurcher in der Bohrung des Werkstückes führt. A first portion 3 has a run-up cone 4, to allow easier attachment of the thread former in the workpiece, and has ei NEN guide part 5, which on the one hand forms the thread and on the other hand guides the thread former in the bore of the workpiece. Zwischen dem ersten Abschnitt 3 und dem zweiten Abschnitt 6 ist eine Trennstelle 7 angeordnet, welche dazu dient, bei Erreichen der Standzeit des ersten Abschnittes 3 diesen vom Gewindefurcher 1 abzutrennen. Between the first portion 3 and the second section 6 of a separating point 7 is arranged, which serves on reaching the tool life of the first portion 3 to separate it from the thread former. 1 Die Trennstelle 7 ist vorzugsweise zylindrisch ausgeführt. The joint 7 is preferably cylindrical. Der zweite Abschnitt 6 weist ebenfalls einen Anlaufkegel 8 und einen Führungsteil 9 auf. The second section 6 also has a run-up cone 8 and a guide member. 9

Fig. 2 Fig. 2

An einem Gewindefurcher 1 sind Druckstege 10 angeord net, welche das Material des Werkstücks durch örtliches Eindringen in das Werkstück umformen. On a thread former 1 are pressure webs 10 angeord net, which convert the material of the workpiece by the local penetration into the workpiece. Die Anzahl der Druck stege ist abhängig von dem Material des Werkstückes, dem Gewindedurchmesser und der Steigung sowie der Länge des Anlaufkegels 4 und 8 . The number of webs is compressed depending on the material of the workpiece, the thread diameter and the pitch and the length of the run-up cone 4 and 8. FIG.

Fig. 3 Fig. 3

In einem Gewindefurcher 1 sind Schmiernuten 11 zwi schen den Druckstegen 10 angeordnet, um den Gewindefurcher mit Schmier- bzw. Kühlmittel zu versorgen. In a forming taps 1 lubrication grooves 11 are arranged Zvi rule the pressure lands 10, to supply the thread former with lubricant or coolant.

Bezugszeichen reference numeral

1 1

Gewindefurcher forming taps

2 2

Aufnahme admission

3 3

erster Abschnitt first section

4 4

Anlaufkegel starting cone

5 5

Führungsteil guide part

6 6

zweiter Abschnitt second part

7 7

Trennstelle separation point

8 8th

Anlaufkegel starting cone

9 9

Führungsteil guide part

10 10

Druckstege pressure ridges

11 11

Schmiernuten lubrication

Claims (6)

  1. 1. Gewindefurcher ( 1 ) zur Herstellung eines Innenge windes, dadurch gekennzeichnet , daß die Gewindelänge des Gewindefurchers ( 1 ) mindestens zwei Ab schnitte ( 3 , 6 ) aufweist, wobei jeder Abschnitt ( 3 , 6 ) zum Herstellen eines Gewindes ausgeführt ist. 1. thread former (1) for producing a Innenge wind, characterized in that the threaded length of the thread former (1) has at least two From sections (3, 6), each section (3, 6) is designed for producing a thread.
  2. 2. Gewindefurcher nach Anspruch 1, dadurch ge kennzeichnet, daß zwischen den Abschnit ten ( 3 , 6 ) eine Trennstelle ( 7 ) zum Abtrennen eines Ab schnittes ( 3 , 6 ) angeordnet ist. 2. forming tap according to claim 1, characterized in that between the Abschnit th (3, 6) is disposed a separating point (7) for separating a section from (3, 6).
  3. 3. Gewindefurcher nach Anspruch 2, dadurch ge kennzeichnet, daß die Trennstelle ( 7 ) eine zylindrische Form aufweist. 3. thread former according to claim 2, characterized in that the separating point (7) has a cylindrical shape.
  4. 4. Gewindefurcher nach Anspruch 1, dadurch ge kennzeichnet, daß jeder Abschnitt ( 3 , 6 ) einen Anlaufkegel ( 4 , 8 ) und einen Führungsteil ( 5 , 9 ) auf weist. 4. thread former according to claim 1, characterized in that each section (3, 6) has a run-up cone (4, 8) and a guide part (5, 9) has.
  5. 5. Gewindefurcher nach Anspruch 4, dadurch ge kennzeichnet, daß der Führungsteil ( 5 , 9 ) Schmiernuten ( 11 ) aufweist. 5. thread former according to claim 4, characterized in that the guide part (5, 9) lubricating grooves (11).
  6. 6. Gewindefurcher nach Anspruch 1, dadurch ge kennzeichnet, daß die Abschnitte ( 3 , 6 ) hin tereinander auf dem Gewindefurcher angeordnet sind. 6. thread former according to claim 1, characterized in that the sections (3, 6) are arranged towards behind the other on the thread former.
DE2000102756 2000-01-22 2000-01-22 Thread cutter for producing internal threads has at least two cutting sections with separating point in between to allow worn section to be removed and work continued with second section Withdrawn DE10002756A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000102756 DE10002756A1 (en) 2000-01-22 2000-01-22 Thread cutter for producing internal threads has at least two cutting sections with separating point in between to allow worn section to be removed and work continued with second section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000102756 DE10002756A1 (en) 2000-01-22 2000-01-22 Thread cutter for producing internal threads has at least two cutting sections with separating point in between to allow worn section to be removed and work continued with second section

Publications (1)

Publication Number Publication Date
DE10002756A1 true true DE10002756A1 (en) 2001-07-26

Family

ID=7628445

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000102756 Withdrawn DE10002756A1 (en) 2000-01-22 2000-01-22 Thread cutter for producing internal threads has at least two cutting sections with separating point in between to allow worn section to be removed and work continued with second section

Country Status (1)

Country Link
DE (1) DE10002756A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2381488A (en) * 2001-11-02 2003-05-07 Tzung Yen Wu Threading tool
WO2004043636A1 (en) * 2002-11-14 2004-05-27 Vilmanyi Laszlo Thread shaping tap with multiple working heads
WO2004076109A1 (en) * 2003-02-27 2004-09-10 Vilmanyi Laszlo Indexable threading tap
US7114891B2 (en) * 2001-05-22 2006-10-03 Sandvik Intellectual Property Ab Thread forming tool with annular ridge
EP1698419A3 (en) * 2005-03-01 2010-02-24 EMUGE-Werk Richard Glimpel GmbH & Co.KG Fabrik für Präzisionswerkzeuge Tool and method for the production of a thread
EP2407265A1 (en) * 2010-07-17 2012-01-18 Rolf Rombach Tool for forming an internal thread, method for producing a wood assembly with such a tool and wood assembly produced using such a method
US20150003936A1 (en) * 2013-06-27 2015-01-01 Meadville Forging Co. Lp Bolt hole with improved threads and tap for manufacture thereof
DE10338754C5 (en) * 2003-08-23 2016-01-14 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Tool for non-cutting production of a thread and process for the production of a tool for non-cutting thread production

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3050448A1 (en) * 1980-06-26 1982-08-12 Dn Gornyj I Im Artema Method of obtaining on a workpiece a resilient screw thread with closed helical cavity inside its profile and thread-forming tool therefor
EP0767024A1 (en) * 1995-10-02 1997-04-09 Tanoi Mfg. Co., Ltd. Thread forming tap

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3050448A1 (en) * 1980-06-26 1982-08-12 Dn Gornyj I Im Artema Method of obtaining on a workpiece a resilient screw thread with closed helical cavity inside its profile and thread-forming tool therefor
EP0767024A1 (en) * 1995-10-02 1997-04-09 Tanoi Mfg. Co., Ltd. Thread forming tap

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7114891B2 (en) * 2001-05-22 2006-10-03 Sandvik Intellectual Property Ab Thread forming tool with annular ridge
GB2381488A (en) * 2001-11-02 2003-05-07 Tzung Yen Wu Threading tool
WO2004043636A1 (en) * 2002-11-14 2004-05-27 Vilmanyi Laszlo Thread shaping tap with multiple working heads
WO2004076109A1 (en) * 2003-02-27 2004-09-10 Vilmanyi Laszlo Indexable threading tap
DE10338754C5 (en) * 2003-08-23 2016-01-14 EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge Tool for non-cutting production of a thread and process for the production of a tool for non-cutting thread production
EP1698419A3 (en) * 2005-03-01 2010-02-24 EMUGE-Werk Richard Glimpel GmbH & Co.KG Fabrik für Präzisionswerkzeuge Tool and method for the production of a thread
CN1827277B (en) 2005-03-01 2012-05-30 埃莫克精密工具厂里查德格林普尔有限责任两合公司 Tool and method for the production of a thread
EP2626159A3 (en) * 2005-03-01 2013-10-30 EMUGE-Werk Richard Glimpel GmbH & Co.KG Fabrik für Präzisionswerkzeuge Tool set for generating threads
EP2407265A1 (en) * 2010-07-17 2012-01-18 Rolf Rombach Tool for forming an internal thread, method for producing a wood assembly with such a tool and wood assembly produced using such a method
US20150003936A1 (en) * 2013-06-27 2015-01-01 Meadville Forging Co. Lp Bolt hole with improved threads and tap for manufacture thereof
US9272348B2 (en) * 2013-06-27 2016-03-01 Meadville Forging Co LP Bolt hole with improved threads and tap for manufacture thereof

Similar Documents

Publication Publication Date Title
EP0718057A2 (en) Device for flaring hollow workpieces
DE19511829A1 (en) Cutting tool, esp. drill, milling tool, tap drill, reamer or chamfering drill - has cutting part coated with sliding layer of lesser hardness than base layer of cutting part giving improved tool life at higher cutting speeds
DE3934621C2 (en) Tool for cutting shaping of threads
EP2213396A2 (en) Method and device for manufacturing a shaft
DE10318948A1 (en) Drill bit used for metal working, has shank section divided into rough portion and simple portion such that rough portion has cord or trapezoid splines, while simple portion has simple splines
DE102005022503A1 (en) Tool for producing or re-machining threads, has thread-forming teeth with thread-forming profiles that protrude outwards from carrier body
EP0278288A1 (en) Drilling tool for working materials producing long chips
EP0583707A1 (en) Threaded clamp for elongated objects, especially for pipes, cables, hoses or the like
DE102011055210A1 (en) Tool for manufacturing threads and grooves, has drive-side area and tool-side area, and two axial cutter planes are arranged at tool-side area, where cutter planes are at distance from each other
DE3804291A1 (en) Clamping screw
DE202009013808U1 (en) Cutter with a shaft-like basic shape
EP0504782A1 (en) Screw, method and rolling die for manufacturing the same
DE102004040580A1 (en) Drill has continuous cutters spaced from axis by smaller radial distance then interrupted cutters
DE3624617A1 (en) drilling
EP0739674A2 (en) Internal broaching tool for internal broaching of profiles
EP1060806A2 (en) Tube extrusion press
EP0645215A1 (en) Fixing plate
DE102004013640A1 (en) Tool and apparatus for making threaded holes
DE202007015595U1 (en) The rotating shaft, in particular step reamer
DE10243403A1 (en) Tool production method for making e.g. drill, milling cutter involves use of blank bar has diameter which is larger than diameter of conveying helix introduced in single operation
EP2527065A1 (en) Drill
DE3741138C1 (en) Peeling and drawing tool for surface treatment of wires, rods or similar bar stock
EP0223909A1 (en) Extrusion die for manufacturing a drill blank of hard metal or ceramics
EP0414280A2 (en) Saw wire fastening
DE102008052743A1 (en) Tool i.e. twist drill, for machining workpiece, has regions provided along axial extension of tool, geometrically defined cutting edge and center axis, where regions are alternately made of ductile and hard materials

Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee