DE3200755A1 - Expanding thread former - Google Patents

Expanding thread former

Info

Publication number
DE3200755A1
DE3200755A1 DE19823200755 DE3200755A DE3200755A1 DE 3200755 A1 DE3200755 A1 DE 3200755A1 DE 19823200755 DE19823200755 DE 19823200755 DE 3200755 A DE3200755 A DE 3200755A DE 3200755 A1 DE3200755 A1 DE 3200755A1
Authority
DE
Germany
Prior art keywords
former
thread
internal thread
workpiece
thread former
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.)
Granted
Application number
DE19823200755
Other languages
German (de)
Other versions
DE3200755C2 (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.)
KRUEGER BEUSTER HELMUT
Original Assignee
KRUEGER BEUSTER HELMUT
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 KRUEGER BEUSTER HELMUT filed Critical KRUEGER BEUSTER HELMUT
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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

With this former it is possible to form threads in drilled holes without a rotary movement.

Description

SpreizgewindeformerExpanding thread former

Die Erfindung macht es sich zur Aufgabe, in besonders einfacher Weise unter Zuhilfenahme eines Folgewerkzeuges nicht zu tiefe Gewinde vorzugsweise in Massengutartikel spanlos einzubringen.The invention makes it its task in a particularly simple manner With the help of a follow-up tool, threads that are not too deep, preferably in Bringing bulk goods without cutting.

Die bisher bekannten Werkzeuge der Innengewindeherstellung benötigen eine mit der Gewindelänge im Zusammenhang stehende Anzahl von Drehungen. Der hierfür notwendige Arbeitsgang erfordert losgelöst von den Folgeschnitt-und Preßwerkzeugen eigene Maschinen usw.The previously known tools for internal threading require a number of turns related to the thread length. The one for this necessary operation requires detached from the subsequent cutting and pressing tools own machines etc.

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 Werkzeuges 1. in Höhe des Werkstückkernloches durch einen Anschlag fixiert und 2. gemeinsam mit dem Werkstück auf einen Spreizkeil gedrückt, so daß die Kernlochwandungen das Profil des Formers annehmen. Nach dem Vorrücken des Werkstückes wird durch einen weiteren, entsprechend gedrehten Dorn der noch nicht geformte Rest bearbeitet.The invention uses the possibility of subsequent tools, the internal thread production to be broken down into individual operations. For this purpose, the installed in such a tool, Slotted thread former when the tool goes down 1. at the height of the workpiece core hole fixed by a stop and 2. together with the workpiece on an expanding wedge pressed so that the core hole walls take the profile of the former. After this The workpiece is advanced by a further, appropriately rotated mandrel the not yet formed remainder machined.

Neben den Vorteilen der spanlosen Bearbeitung, der verschleißmindernden Reibungsfreiheit der Gewindegänge des Formers (Reibungsarbeit wird auf die Spreizflächen verlagert), der Strukturverbesserung der Gewindeflanken des Werkstückes und der paßgenauen Nachstellbarkeit liegt die wesentliche Verbesserung in der kostensparenden Möglichkeit, die Innengewindeherstellung bei Massengutartikeln in Folgeschnitt- und Presswerkzeugen vorzunehmen.In addition to the advantages of non-cutting machining, the wear-reducing Frictionlessness of the thread turns of the former (friction work is on the expansion surfaces relocated), the structural improvement of the thread flanks of the workpiece and the Precise adjustability is the essential improvement in the cost-saving Possibility of producing internal threads for bulk goods in sequential cut and pressing tools.

Die Abbildung zeigt ein mögliches Ausführungsbeispiel.The figure shows a possible embodiment.

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.The thread former 1 is limited by the frictional connection of the spring 5 and immersed through the stop 7 in the workpiece 3 and through the mandrel 2, which is in the movable frame 4 of the tool is attached, spread open.

DaslWerkstück 3 wird über den Gegenhalter, der fest im Werkzeug ist, abgestützt.The workpiece 3 is held in place by the counterholder, which is fixed in the tool. supported.

LeerseiteBlank page

Claims (2)

Patentansprüche: Geschlitzter Innengewindeformer mit Spreizdorn zur Innengewinde-Herstellung in zwei oder mehreren Bearbeitungsstufen dadurch gekennzeichnet, daß ein einfach oder mehrfach geschlitztes, mit Außengewinde versehenes Werkzeug, dessen größter Durchmesser im ungespreizten Zustand es ermöglicht, in ein entsprechendes Kernloch eines mit einem Gewinde zu versehenden Werkstückes berhrungsfrei eingeführt zu werden und mittels eines keil- oder kegelförmigen Spreizdornes den Gewindeformer aufzuspreizen und dem Werkstück das Gewinde einzuprägen.Claims: Slotted internal thread former with expanding mandrel for internal thread production in two or more processing stages, characterized in that a single or multiple slotted tool provided with an external thread, the largest diameter of which in the unspread state enables it to be inserted into a corresponding core hole of a workpiece to be threaded To be introduced without contact and to spread the thread former by means of a wedge-shaped or conical expanding mandrel and to impress the thread on the workpiece. 1. 1. Innengewindeformer nach 1 dadurch gekennzeichnet, daß der Spreizdorn von der Keil-oder Kegelform abweicht und/oder als separates Bauteil montiert ist.1. 1. Internal thread former according to 1, characterized in that the expanding mandrel deviates from the wedge or cone shape and / or is mounted as a separate component. 1.2. Innengewindeformer nach 1 dadurch gekennzeichnet, daß die Spreizbewegung auf abweichende Weise erreicht wird, z.B. hydraulisch. 1.2. Internal thread former according to 1, characterized in that the spreading movement is achieved in a different way, e.g. hydraulically. 2. Innengewindeformer nach 1 dadurch gekennzeichnet, daß ein Former die vollständige Gewindeformung als Hand- oder Maschinenwerkzeug durch Umschaltung (z.B. 1/4 Drehung und 1/4 Steigung) ausführt.2. Internal thread former according to 1, characterized in that a former the complete thread forming as hand or machine tool by switching (e.g. 1/4 turn and 1/4 pitch).
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 true DE3200755A1 (en) 1984-04-26
DE3200755C2 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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0832703A1 (en) * 1996-09-30 1998-04-01 M.H. Center Limited Method for producing a metal part having internal threads and machine therefor
WO2009080001A1 (en) * 2007-12-21 2009-07-02 Ifm Electronic Gmbh Method and device for producing a thread, and component and apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4226084A1 (en) * 1991-11-19 1994-02-10 Fraunhofer Ges Forschung Tool for the non-cutting production of external or internal contours
DE102014017808B3 (en) * 2014-12-03 2016-02-25 Audi Ag Apparatus and method for chipless internal thread forming
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

Citations (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

Patent Citations (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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0832703A1 (en) * 1996-09-30 1998-04-01 M.H. Center Limited Method for producing a metal part having internal threads and machine therefor
WO2009080001A1 (en) * 2007-12-21 2009-07-02 Ifm Electronic Gmbh Method and device for producing a thread, and component and apparatus

Also Published As

Publication number Publication date
DE3200755C2 (en) 1985-11-28

Similar Documents

Publication Publication Date Title
CH676940A5 (en)
DE3200755A1 (en) Expanding thread former
DE2430608A1 (en) METHOD AND DEVICE FOR PERFORMING THE METHOD FOR CUTTING WORK PIECES OF CERTAIN LENGTH OF PROFILE MATERIAL, E.G. FROM A PIPE
DE859705C (en) Method of manufacturing screw bolts and the like like
DE1102686B (en) Rolling process for the formation of teeth or other radial projections on the surface of a cylindrical workpiece
DE2427826A1 (en) Rotary machine tool incorporating compound slide - is fitted with lifter type tool holder control supported by eccentric
DE328776C (en) Chuck for lathe u. Like. With switchable clamping device for the work piece while the machine is running
DE2916037C2 (en)
DE1245254B (en) Method and device for upsetting a limited end zone of a metallic component
DE580175C (en) Device for clamping the switchable tool or work piece drum with multi-spindle, automatic turning arms
DE2623161C3 (en) Device for producing especially internal threads on multi-spindle automatic lathes
DE2632663B2 (en) Method and tool for making round holes
DE3028227A1 (en) Tongs used in riveting machine - have circular upper die and tong jaws with stepped guide bore
AT153142B (en) Drawing press for drawing cartridge cups.
DE1104795B (en) Method of making star-shaped wings of screwdriver tips
AT137631B (en) Method and device for the production of pedal axles which are tapered towards one end.
CH384516A (en) Workpiece guidance on machines for non-cutting profiling of cylindrical metal bodies
DE892411C (en) Die assembly for hot forming ring bodies of smaller diameter, e.g. B. of ball bearing rings
DE901726C (en) Punch for post processing
DE855041C (en) Method and device for finishing the cylindrical casing surface of a bore and an equiaxed conical surface
DE2134142A1 (en) DRILLING DEVICE
DE831789C (en) Device for the continuous advance of the tools on wheel set turning arms
DE871397C (en) Method and device for the production of molded parts, in particular forgings
DE832134C (en) Method and device for the manufacture of polygonal locking coil spring nuts
DE694085C (en) Process for the manufacture of profiled small parts, e.g. B. drive wheels for drives to drive toys, watches or the like.

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