EP0919310B1 - Rundknetmaschine - Google Patents

Rundknetmaschine Download PDF

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Publication number
EP0919310B1
EP0919310B1 EP97890225A EP97890225A EP0919310B1 EP 0919310 B1 EP0919310 B1 EP 0919310B1 EP 97890225 A EP97890225 A EP 97890225A EP 97890225 A EP97890225 A EP 97890225A EP 0919310 B1 EP0919310 B1 EP 0919310B1
Authority
EP
European Patent Office
Prior art keywords
forging
box
workpiece
eccentric
swaging machine
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 - Lifetime
Application number
EP97890225A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0919310A1 (de
Inventor
Gottfried Dipl.-Ing. Blaimschein
Alfred Ing. Seeber
Rupert Ing. Wieser
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.)
GFM Beteiligungs und Management GmbH and Co KG
Original Assignee
GFM Beteiligungs und Management GmbH and Co KG
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 GFM Beteiligungs und Management GmbH and Co KG filed Critical GFM Beteiligungs und Management GmbH and Co KG
Priority to EP97890225A priority Critical patent/EP0919310B1/de
Priority to ES97890225T priority patent/ES2155985T3/es
Priority to DE59703151T priority patent/DE59703151D1/de
Priority to AT97890225T priority patent/ATE199668T1/de
Priority to US09/187,668 priority patent/US6070446A/en
Priority to JP10319133A priority patent/JPH11216533A/ja
Publication of EP0919310A1 publication Critical patent/EP0919310A1/de
Application granted granted Critical
Publication of EP0919310B1 publication Critical patent/EP0919310B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B21J7/16—Forging machines working with several hammers in rotary arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B21J7/145—Forging machines working with several hammers the hammers being driven by a rotating annular driving member

Definitions

  • the invention relates to a circular kneading machine for round forging rod-shaped Workpieces with a rotating and driven in a machine frame ring-shaped forging box, which in radial recesses acting against each other and at the same time rotating the forging box Tool-equipped forging dies that can be moved by a stroke drive records (see e.g. DE-A-28 34 360).
  • the rod-shaped workpiece is under pure longitudinal feed forged, which makes it because of the non-rotated workpiece is possible, the forging process with a continuous casting process and / or to combine in one rolling process, but this causes continuous forging of the axial deformation planes remaining fixed to the workpiece, forcibly increased zones Material stress in the overlap area of the forging tools what leads to material overheating and endangers the quality of the workpiece.
  • Around Avoiding such zones of increased material stress must be done when forging of the rod-shaped workpiece for an angular displacement of the deformation planes per hammer blow, which relocation in continuous forging machines by means of a rotary feed applied in addition to the longitudinal feed and the workpiece is forged while rotating the workpiece.
  • rotary kneading machines where the forging tools act simultaneously radially on the workpiece and relative to the workpiece circulate, which also results in an angular displacement of the planes of deformation.
  • the known rotary kneaders have the workpiece in a ring shape surrounding forging box with radial guides for the inside of the workpiece-equipped Forging stamps, the roll-off tracks that are inflated on their outer end faces for pressurization using pressure rollers.
  • the radial forged stamps the at the same time as the forging stroke, the forging box rotation is also forced follow, take the workpiece in the direction of rotation by friction during forming of the forging box, so that the workpiece via the forging tools a rotary movement is forced and the rotary kneading machines have so far not been forged allow under pure longitudinal feed of the workpiece. Even the well-known Circular kneading machines are therefore not directly related to Use continuous casting machines and / or rolling machines.
  • the invention is therefore based on the object of a circular kneading machine at the outset to create described type that enables workpiece forming without workpiece rotation and the prerequisite for something that goes beyond conventional rotary kneading Round forging offers.
  • the invention solves this problem in that the forging stamps in the recesses of the forging box is supported via swiveling longitudinal guides and the lifting movements of the forging ram swinging movements with a can be superimposed in a normal plane to the direction of motion lying in the direction of the passage are which oscillating movements the associated forging tools during the Workpiece contact with one of the angular speeds of the forging box rotation corresponding, but opposite angular velocity relative to the forging box swing back.
  • the rotating movement of the forging box during the lifting movements the forging punch causes an angular displacement when the workpieces are forged the planes of deformation, so that no overuse of the Workpiece material is to be feared.
  • the simultaneous, to the forging box rotation opposite oscillating movement of the forging tools also ensures that the forging tools at least while touching the workpiece Compensate forging box rotation and there is no relative rotation between workpiece and forging tools there.
  • the workpiece cannot therefore be grounded occurring frictional forces are set into a rotary motion via the tools and there is actually a round forging without turning the Workpiece that remains subjected to a pure longitudinal feed.
  • everyone can Advantages of forging with a non-rotating workpiece are fully exploited, in particular the forging can now be carried out immediately after a continuous casting process perform or combine directly with a rolling process. Let also when forging long rod material, especially smaller dimensions form loops between the individual work stations, which are a transmission of machining-related mass forces of the workpiece from one work station prevent on the other.
  • a very useful design results when an eccentric drive is used as the lifting drive with the eccentric shafts assigned to the forging dies and stored in the forging box it is provided which forging stamp with a pivot bearing Head are connected to the corresponding eccentric like a connecting rod.
  • the right on the eccentric forging stamps are due to the eccentric rotation a corresponding support by means of a longitudinal guide and swivel bearing both Lifting movement and subjected to an oscillating movement, so that at a suitable Adaptation of these movement components to the deformation process on the one hand and the forging box rotation on the other hand a common drive for the Lifting movement and the swinging movement are sufficient.
  • Is an epicyclic gearbox for driving the eccentric shafts with one for the forging box coaxially mounted central wheel and each associated with the eccentric shafts the synchronous drive of all forging stamps is provided in a low-cost design guaranteed by the mutual offset of the eccentric eccentricities the stroke sequence of the individual forging stamps is also easily set can be.
  • the Forge box recesses for at least two in a row Forging levels working forging stamps with the recesses of the one forging level opposite the recesses of the other forging level can be arranged offset in angle, so that the workpiece during the run can be forged in two or more stitches at the same time and also have a corresponding number of forged stamps arranged without space problems.
  • the lifting movement is the forging punch an oscillatory movement superimposed, the direction of oscillation as the resultant from a direction of movement lying in a normal plane to the pass axis as a component and one lying in an axial plane to the pass axis Direction of movement composed as another component.
  • the eccentric drive of the forging stamp can be easily reached Have eccentric shafts with axes crossing the through axis, so that the Forge stamp their swinging movement according to the normal planes to these Execute eccentric shaft axes.
  • the blacksmith's box 3 has radial recesses 4 for receiving and acting against each other simultaneous forging box rotation stroke movable forging punch 5 on Equipped on the workpiece side with a forging tool 6 and on the side facing away from the workpiece Side equipped with a lift drive designed as an eccentric drive 7 are.
  • the eccentric drive 7 comprises the forging dies 5 assigned in ring walls 8 of the forging box 3 mounted eccentric shafts 9 with eccentric 10 on which the forging stamp 5 by means of a connecting rod-like head 12 forming a pivot bearing 11 are scheduled.
  • the forging dies 5 are guided in longitudinal guides 13, which are via pivot bearing 14 in the recesses 4 of the forging box 3 pivotally adjustable Support so that the eccentric 5 and thus at eccentric rotation the forging tools 6 a lifting movement radially to the pass axis A and at the same time a pivoting movement with a in a normal plane N to the pass axis A lying movement direction are forced.
  • a planetary gear 15 from an on the outer circumference of the forging box 3 rotatable and, for example, via a pulley 16 drivably mounted central wheel 17 and each assigned to the eccentric shafts 9 Orbiting wheels 18 are provided.
  • the stroke movement of the stamp 5 can be superimposed Specify oscillation movement with a resulting direction of oscillation, which results from a direction of movement lying in a normal plane to the pass axis and a movement direction lying in an axial plane to the pass axis, so that this axial movement component then has a conveying effect for the workpiece brings with it, but without imparting the unwanted tendency to turn to the workpiece.
  • the eccentric 7 Forging punch 5 eccentric shafts 91 with axes crossing the through axis A. E1 have, so that for those sitting with their head 121 on the eccentric 101 Forging punch 5 an oscillation direction R normal to the eccentric shaft axes E1 results in an axis-normal motion component Rn and an axial motion component Ra can be divided, with the axis-normal motion component Rn has to balance the forging box rotation and the axial component of motion Ra remains usable for longitudinal workpiece conveying.
  • the eccentric shaft axes E run of the eccentric shafts 92 parallel to the pass axis A, but for the head part 122 Forging punch 5 opposite to the continuous and eccentric shaft axes A, E Side guides 20 are provided, which in turn the swinging movement of the Forge stamp 5 in a vibration direction R, which from a normal movement component Rn and an axial movement component Ra results.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
EP97890225A 1997-11-13 1997-11-13 Rundknetmaschine Expired - Lifetime EP0919310B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP97890225A EP0919310B1 (de) 1997-11-13 1997-11-13 Rundknetmaschine
ES97890225T ES2155985T3 (es) 1997-11-13 1997-11-13 Maquina recalcadora rotativa.
DE59703151T DE59703151D1 (de) 1997-11-13 1997-11-13 Rundknetmaschine
AT97890225T ATE199668T1 (de) 1997-11-13 1997-11-13 Rundknetmaschine
US09/187,668 US6070446A (en) 1997-11-13 1998-11-06 Swaging machine
JP10319133A JPH11216533A (ja) 1997-11-13 1998-11-10 円形こね機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97890225A EP0919310B1 (de) 1997-11-13 1997-11-13 Rundknetmaschine

Publications (2)

Publication Number Publication Date
EP0919310A1 EP0919310A1 (de) 1999-06-02
EP0919310B1 true EP0919310B1 (de) 2001-03-14

Family

ID=8231124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97890225A Expired - Lifetime EP0919310B1 (de) 1997-11-13 1997-11-13 Rundknetmaschine

Country Status (6)

Country Link
US (1) US6070446A (es)
EP (1) EP0919310B1 (es)
JP (1) JPH11216533A (es)
AT (1) ATE199668T1 (es)
DE (1) DE59703151D1 (es)
ES (1) ES2155985T3 (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004014705A1 (de) * 2004-03-25 2005-10-13 Otto Bihler Handels-Beteiligungs-Gmbh Fertigungsverfahren für Sechskantschlüssel mit Kugelkopf aus Sechskantdraht (Spanlos)
DE19955323B4 (de) * 1999-11-17 2007-11-29 Volkswagen Ag Rundknetmaschine mit gleitgelagerter Werkzeuganordnung
DE19955321B4 (de) * 1999-11-17 2008-02-07 Volkswagen Ag Rundknetmaschine mit hydraulischem Kraftausgleich
DE19952229B4 (de) * 1999-10-29 2008-02-07 Volkswagen Ag Rundknetmaschine
DE19954210B4 (de) * 1999-11-11 2008-04-03 Volkswagen Ag Rundknetmaschine

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6993953B2 (en) * 2003-02-04 2006-02-07 Interface Associates, Inc. Swaging die and method of use
US7010953B2 (en) * 2003-02-04 2006-03-14 Interface Associates, Inc. Swaging machine and method of use
DE10341716B4 (de) * 2003-03-25 2009-12-24 Forschungsgesellschaft Umformtechnik Mbh Vorrichtung zum radialen Umformen von stab-, rohr- oder drahtförmigen Werkstücken
WO2007075585A2 (en) 2005-12-16 2007-07-05 Interface Associates, Inc. Multi-layer balloons for medical applications and methods for manufacturing the same
DE102009042441A1 (de) * 2009-09-22 2011-03-31 Otto Bihler Handels-Beteiligungs-Gmbh Ringpresse mit Torque-Motor
CN105328100B (zh) * 2015-12-01 2017-08-01 西北有色金属研究院 薄壁超长变径金属棒材及管材的旋锻机构和旋锻加工装置
DE102016100599B4 (de) * 2016-01-14 2018-05-17 Sms Group Gmbh Schmiedemaschine und Schmiedeverfahren
US11203053B2 (en) * 2019-10-03 2021-12-21 Shyam Newar Peripheral combination hydraulic press to forge and method of manufacturing thereof
CN115608909B (zh) * 2022-12-19 2023-04-07 江苏亿林利达新能源科技有限公司 一种电动平衡车轮毂成型锤击锻造装置及锻造方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388643A (en) * 1943-01-02 1945-11-06 Bliss E W Co Apparatus for swaging tubular blanks
AT207202B (de) * 1959-01-08 1960-01-25 Fertigungstechnik U Maschb Ges Schmiedemaschine
AT276009B (de) * 1968-05-03 1969-11-10 Ges Fertigungstechnik & Maschb Vorrichtung zum Durchlaufstreckschmieden
DE1804781A1 (de) * 1968-10-24 1970-08-20 Kieserling & Albrecht Rundknetmaschine
AT289512B (de) * 1969-02-25 1971-04-26 H C Bruno Dipl Ing D Kralowetz Schmiedemaschine zum Durchlaufstreckschmieden stangen- oder strangförmiger Werkstücke
SU695756A1 (ru) * 1977-09-26 1979-11-05 Burakovskij Valerij N Радиально-ковочна машина
DE2834360C3 (de) * 1978-08-04 1981-03-19 Fritz Werner Industrie-Ausrüstungen GmbH, 6222 Geisenheim Positioniervorrichtung für das Knetwerk einer Rundknetmaschine in Ringläuferbauart
AT370351B (de) * 1981-11-16 1983-03-25 Gfm Fertigungstechnik Schmiedemaschine
ATE139157T1 (de) * 1992-04-21 1996-06-15 Gfm Fertigungstechnik Schmiedewalzanlage zum herstellen stabförmiger werkstücke od.dgl.
RU2008994C1 (ru) * 1992-06-04 1994-03-15 Тюрин Валерий Александрович Способ радиальной ковки

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19952229B4 (de) * 1999-10-29 2008-02-07 Volkswagen Ag Rundknetmaschine
DE19954210B4 (de) * 1999-11-11 2008-04-03 Volkswagen Ag Rundknetmaschine
DE19955323B4 (de) * 1999-11-17 2007-11-29 Volkswagen Ag Rundknetmaschine mit gleitgelagerter Werkzeuganordnung
DE19955321B4 (de) * 1999-11-17 2008-02-07 Volkswagen Ag Rundknetmaschine mit hydraulischem Kraftausgleich
DE102004014705A1 (de) * 2004-03-25 2005-10-13 Otto Bihler Handels-Beteiligungs-Gmbh Fertigungsverfahren für Sechskantschlüssel mit Kugelkopf aus Sechskantdraht (Spanlos)

Also Published As

Publication number Publication date
US6070446A (en) 2000-06-06
ATE199668T1 (de) 2001-03-15
JPH11216533A (ja) 1999-08-10
DE59703151D1 (de) 2001-04-19
EP0919310A1 (de) 1999-06-02
ES2155985T3 (es) 2001-06-01

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