DE3200755C2 - Process for the non-cutting production of an internal thread - Google Patents

Process for the non-cutting production of an internal thread

Info

Publication number
DE3200755C2
DE3200755C2 DE19823200755 DE3200755A DE3200755C2 DE 3200755 C2 DE3200755 C2 DE 3200755C2 DE 19823200755 DE19823200755 DE 19823200755 DE 3200755 A DE3200755 A DE 3200755A DE 3200755 C2 DE3200755 C2 DE 3200755C2
Authority
DE
Germany
Prior art keywords
internal thread
former
cutting production
workpiece
thread
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
DE19823200755
Other languages
German (de)
Other versions
DE3200755A1 (en
Inventor
Helmut 2420 Eutin Krueger-Beuster
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19823200755 priority Critical patent/DE3200755C2/en
Publication of DE3200755A1 publication Critical patent/DE3200755A1/en
Application granted granted Critical
Publication of DE3200755C2 publication Critical patent/DE3200755C2/en
Expired legal-status Critical Current

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
    • B23G7/00—Forming thread by means of tools similar both in form and in manner of use to thread-cutting tools, but without removing any material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/56—Making machine elements screw-threaded elements

Abstract

Mit diesem Former ist es möglich, Gewinde in Bohrungen einzuformen ohne Drehbewegung.With this former it is possible to form threads in bores without turning.

Description

Die Erfindung betrifft ein Verfahren zum spanlosen Herstellen eines Innengewindes nach dem Oberbegriff des Patentanspruchs.The invention relates to a method for the non-cutting production of an internal thread according to the preamble of the claim.

Aus der DE-OS 17 52 190 ist es bekannt, einen geschlitzten Innengewindeformer in eine Bohrung mit Spiel einzuführen und mittels eines Spreizkopfes das Gewinde unter Drehung des Werkzeuges spanlos herzustellen. From DE-OS 17 52 190 it is known to have a slotted Introduce internal thread former into a hole with play and use an expansion head to do the Manufacture thread without cutting while rotating the tool.

Bei dem bisher bekannten Verfahren muß das Werkzeug gedreht werden, um auch in den Bereichen ein Gewinde anzuformen, in denen sich der Schlitz des Gewindeformers befindet. Eüne solche Drehbewegung erfordert aber einen erhöhten konstruktiven Aufwand, wenn in den Folgewerkzeugen in einer Presse, deren Stößel meistens nur eine Auf- und Abbewegung ausführt, ein vollständiges Gewinde hergestellt werden soll.In the previously known method, the tool must be rotated in order to also enter the areas Forming threads in which the slot of the thread former is located. Such a rotary movement is required but an increased design effort if in the subsequent tools in a press whose The ram usually only performs an up and down movement, a complete thread is to be produced.

Aufgabe der Erfindung ist also, ein Innengewinde spanlos in einer Bohrung ohne Drehung des Gewindeformers zu erzeugen.The object of the invention is therefore to create an internal thread without cutting in a bore without rotating the thread former to create.

Die Aufgabe wird durch das kennzeichnende Merkmal des Patentanspruchs gelöst.The object is achieved by the characterizing feature of the patent claim.

Der Vorteil dieses Verfahrens liegt in der kostensparenden Möglichkeit, die Inneiigewindeherstellung bei Massengutartikeln in Folgeschritt- und Preßwerkzeugen vorzunehmen.The advantage of this process lies in the cost-saving possibility of producing internal threads To make bulk goods in subsequent step and pressing tools.

Die Erfindung nutzt die Möglichkeit der Folgewerkzeuge, die Innengewindeherstellung in einzelne Arbeitsgänge aufzulösen. Hierzu wird der in ein solches Werkzeug montierte, geschlitzte Gewindeformer beim Niedergang des WerkzeugesThe invention uses the possibility of subsequent tools, the internal thread production in individual operations dissolve. For this purpose, the slotted thread former mounted in such a tool is used in the companionway of the tool

1. in Höhe des Werkstückkernloches durch einen Anschlag fixiert und1. fixed at the height of the workpiece core hole by a stop and

2. gemeinsam mit dem Werkstück auf einen Spreizkeil gedrückt, so daß die Kernlochwandungen das Profil des Formers annehmen.2. pressed together with the workpiece on an expanding wedge, so that the core hole walls the Accept the profile of the former.

5555

Nach dem Vorrücken des Werkstückes wird durch einen weiteren, entsprechend gedrehten Dorn der noch nicht geformte Rest bearbeitet.After the workpiece has advanced, the still not shaped remnant machined.

Die Abbildung zeigt ein mögliches Ausführungsbeispiel. Der Gewindeformer 1 ist über den Kraftschluß der Feder 5 und begrenzt durch den Anschlag 7 in das Werkstück 3 eingetaucht und durch den Dorn 2, der im beweglichen Rahmen 4 des Werkzeuges befestigt ist, aufgespreizt. Das Werkstück 3 wird über den Gegenhalter, der fest im Werkzeug ist, abgestützt.The figure shows a possible embodiment. The thread former 1 is about the frictional connection the spring 5 and limited by the stop 7 immersed in the workpiece 3 and through the mandrel 2, which is in the movable frame 4 of the tool is attached, spread open. The workpiece 3 is over the counter holder, which is fixed in the tool.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

32 OO32 OO Patentanspruch:Claim: Verfahren zum spanlosen Herstellen eines Innengewindes in einem Werkstück mittels eines geschlitzten Innengewindeformers mit Spreizdorn, bei dem ein ungespreizter Innengewindeformer in eine Bohrung des Werkstückes berührungsfrei eingeführt und anschließend mittels eines keilförmigen Spreizdornes gespreizt wird, dadurch gekennzeichnet, daß zum Fertigformen des Gewindes im Bereich des Schlitzes ein weiterer, iii bezug auf Drehung und Steigung versetzter Innengewindeformer mit Spreizdorn verwendet wird.Method for the non-cutting production of an internal thread in a workpiece by means of a slotted one Internal thread former with expanding mandrel, in which an unexpanded internal thread former is inserted into a Drilling of the workpiece introduced without contact and then by means of a wedge-shaped Expanding mandrel is expanded, characterized in that that to finish forming the thread in the area of the slot another, iii refer to Rotation and pitch offset internal thread former with expanding mandrel is used. 1515th
DE19823200755 1982-01-13 1982-01-13 Process for the non-cutting production of an internal thread Expired DE3200755C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823200755 DE3200755C2 (en) 1982-01-13 1982-01-13 Process for the non-cutting production of an internal thread

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823200755 DE3200755C2 (en) 1982-01-13 1982-01-13 Process for the non-cutting production of an internal thread

Publications (2)

Publication Number Publication Date
DE3200755A1 DE3200755A1 (en) 1984-04-26
DE3200755C2 true DE3200755C2 (en) 1985-11-28

Family

ID=6152951

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823200755 Expired DE3200755C2 (en) 1982-01-13 1982-01-13 Process for the non-cutting production of an internal thread

Country Status (1)

Country Link
DE (1) DE3200755C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993009896A1 (en) * 1991-11-19 1993-05-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Non-cutting tool for producing inner and outer profiles
DE102014017808B3 (en) * 2014-12-03 2016-02-25 Audi Ag Apparatus and method for chipless internal thread forming
CN110904807A (en) * 2019-11-26 2020-03-24 南通万航船舶设计有限公司 Pin-connected panel passenger footbridge structure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1099931A (en) * 1996-09-30 1998-04-21 M H Center:Kk Manufacture of metallic parts having internal screw, and its device
DE102008063692A1 (en) * 2007-12-21 2009-07-09 Ifm Electronic Gmbh Method and device for producing a thread and component and device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE673249C (en) * 1936-12-25 1939-03-18 Polte Fa Tapping head with split cutting ring
US2546066A (en) * 1945-05-31 1951-03-20 Vernon E Gleasman Taper tap
DE1752190A1 (en) * 1968-04-18 1971-03-18 Fadispel Fabricadora De Dispos Method and device for producing internal threads

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993009896A1 (en) * 1991-11-19 1993-05-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Non-cutting tool for producing inner and outer profiles
DE102014017808B3 (en) * 2014-12-03 2016-02-25 Audi Ag Apparatus and method for chipless internal thread forming
CN110904807A (en) * 2019-11-26 2020-03-24 南通万航船舶设计有限公司 Pin-connected panel passenger footbridge structure
CN110904807B (en) * 2019-11-26 2021-03-02 南通万航船舶设计有限公司 Pin-connected panel passenger footbridge structure

Also Published As

Publication number Publication date
DE3200755A1 (en) 1984-04-26

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8125 Change of the main classification

Ipc: B21K 1/56

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee