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EP0021166B1 - Schmiedevorrichtung - Google Patents

Schmiedevorrichtung Download PDF

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Publication number
EP0021166B1
EP0021166B1 EP80103120A EP80103120A EP0021166B1 EP 0021166 B1 EP0021166 B1 EP 0021166B1 EP 80103120 A EP80103120 A EP 80103120A EP 80103120 A EP80103120 A EP 80103120A EP 0021166 B1 EP0021166 B1 EP 0021166B1
Authority
EP
European Patent Office
Prior art keywords
head
stroke
upsetting
equipment according
right angles
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
EP80103120A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0021166A1 (de
Inventor
Tadeusz Ul. Rut
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.)
Instytut Obrobki Plastycznej
Original Assignee
Instytut Obrobki Plastycznej
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 Instytut Obrobki Plastycznej filed Critical Instytut Obrobki Plastycznej
Publication of EP0021166A1 publication Critical patent/EP0021166A1/de
Application granted granted Critical
Publication of EP0021166B1 publication Critical patent/EP0021166B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • B21K1/76—Making machine elements elements not mentioned in one of the preceding groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/025—Dies with parts moving along auxiliary lateral directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/17—Crankshaft making apparatus

Definitions

  • the invention relates to a forging device consisting of two swaging tool holders arranged between a main frame and a lower frame, movably mounted relative to the lower frame perpendicular to the direction of the stroke of the main and articulated on the main by means of articulated levers, and in the pressing zone between the end faces of the swaging tools fastened in these swaging tool holders arranged clamping jaws, the clamping jaws being designed as workpiece holders.
  • a forging device in which the press ram is connected by means of articulated levers to the upsetting tools designed as clamping jaws with positive locking, which are movable perpendicular to the direction of the stroke of the press ram.
  • the articulated levers are articulated at one end to a main arranged on the press ram and at the other end to the rear of the upsetting tools.
  • a bending tool and an anvil associated therewith are arranged in the compression zone between the end faces of the compression tools.
  • a forging device is known with two horizontally divided compression dies, the upper and lower halves of which are articulated symmetrically by means of toggle levers on the main and on the base frame.
  • two punches are arranged symmetrically, one of which is rigidly attached to the main frame and the second to the base frame.
  • This device is installed in a press.
  • a rod-shaped workpiece clamped in the compression matrices of this known device is held and compressed from both sides; at the same time the middle part of the corresponding compression between the two punches is pressed symmetrically across the compression direction.
  • This device is primarily intended for the production of symmetrically designed forgings with essentially central upsets. Forgings with upsets at their ends cannot be achieved by this known device.
  • the object of the invention is to provide a forging device which enables a workpiece to be compressed at its two opposite ends at the same time. It should be possible to forge both symmetrically and asymmetrically shaped blanks.
  • this object is achieved in that the swaging tool holders articulated on the main by means of articulated levers are in the form of angular elements, the arms of which are arranged perpendicular to the lifting direction of the main and can be pressed against the jaw of the workpiece holder in the direction of the lifting of the main and at the same time are displaceable perpendicularly to the lifting of the main are and the arms parallel to the stroke of the main are equipped with upsetting tools.
  • the clamping jaws remain immobile during the entire forming process after the workpiece has been clamped.
  • adjustable guide members are arranged on the main, to which the articulated levers are articulated. These guide elements serve to regulate the working stroke of the upsetting tools.
  • the arm of the respective angular element which is arranged perpendicular to the stroke direction of the main, is supported by means of a semicircular insert on the jaw of the workpiece holder, this insert being articulated on one of these elements and mounted displaceably with respect to the other element is.
  • the arm of the respective angle element which is arranged perpendicular to the stroke direction of the main, is supported on the clamping jaw by means of a rolling element.
  • the clamping jaws can be designed as dies that form the workpiece.
  • a stamp is arranged on the central part of the head, the front part of which can be inserted into an opening in the clamping jaw.
  • the forging device according to the invention is to be used to produce two flange-like upsets on rods or tubes at a desired mutual distance, it is recommended that at least one of the upsetting tools be designed as a pair of clamping jaws, one of these jaws being slidably arranged relative to the base frame.
  • the angular elements used in the device according to the invention enable the pressing force directed in the direction of the stroke of the main to be transmitted from the main to the clamping jaws of the workpiece holder, as a result of which the workpiece is clamped in these clamping jaws. At the same time, they also transmit the compression force directed perpendicular to the direction of the stroke of the main to the two compression tools. No additional mechanisms or servomotors have to be used for these two functions.
  • the device shown in FIGS. 1 and 2 comprises a movable head 1, which is attached to a press ram or another drive, not shown, a central workpiece holder, which is supported on a base frame 11 and has two clamping jaws 2a and 2b, and one these elements connecting compression and clamping mechanism 13th
  • the head 1 has two side arms 1a and 1b, which extend downward in the shape of a fork and are inclined at approximately 45 ° to the vertical.
  • Two bearing rollers 5 are supported on each of these guide members 3.
  • Four articulated levers 6 are articulated to these four bearing rollers 5, which are connected at their other ends to further bearing rollers 5a.
  • These bearing rollers 5a are attached to two angle elements 7.
  • the horizontal arm 7a of each angle element 7 is supported by means of a sliding plate 8 and a semicircular insert 9 on a plate 10 which is arranged on the upper jaw 2a.
  • the semicircular insert 9 is rotatably mounted in a recess in the plate 10, which ensures that the cooperating parts fit exactly.
  • Each angle element 7 is additionally connected to the main 1 by means of a hydraulic cylinder 12, which serves to reset the angle elements 7 and the compression tools 13 attached to them.
  • the number 14 denotes the forged workpiece on the drawing.
  • the guide members 3 on the right and left arms 1a and 1b of the head 1 can be adjusted to different heights, so that the articulated levers assigned to the right and left angle elements are inclined differently and the right and left upsetting tools have different working strokes.
  • upsets of various sizes or shapes can be produced at the ends of the workpiece, as is shown, for example, in FIG. 3.
  • each of the upsetting tools is designed as a pair of clamping jaws 15a and 15b.
  • the rod-shaped workpiece 16 is clamped between this pair of jaws.
  • the jaw 15a is fastened to the vertical arm 7b of the angle element 7, while the jaw 15b is slidably mounted on the base frame 11 in a holder 17.
  • the middle part of the workpiece 16 is fastened between the jaws 2a and 2b of the workpiece holder during forging, while the ends of the workpiece are clamped in the two pairs of clamping jaws 15a and 15b.
  • two flange-like upsets 18 are produced, as shown in FIG. 7.
  • the device is mounted in a position rotated by 180 ° in relation to the previous embodiments.
  • the main 1 rests on a base not indicated in the drawing, for. B. on the table of a press.
  • the plate 11a is attached to a press ram not indicated in the drawing.
  • a roller 19 is provided instead of the semicircular insert which is shown in FIGS. 1 and 2 and 4 and 5.
  • a stamp 20 is arranged in a socket 21 in the middle part of the head 1.
  • the jaws 2a and 2b are designed as die halves of a closed die, the engraving of which corresponds to the shape of a cross piece (FIGS.
  • the parts of the engraving which form two arms of the cross piece lying in one axis, are closed at the outer ends.
  • the other parts of the engraving, in which the two remaining arms of the cross piece are formed, form a channel open on both sides.
  • Central openings are provided in the jaw 2a and the plate 10, through which the stamp 20 can engage in the space of the engraving.
  • the upsetting tools are cylindrical and their diameter corresponds to the diameter of the above-mentioned channel in the jaw 2a or 2b.
  • the workpiece 22 is clamped between the jaws 2a and 2b in the aforementioned channel of the engraving during forging.
  • the upsetting tools 13 press against the ends of the workpiece 22 and cause the material to flow into the entire engraving in the jaws 2a and 2b, in which it is formed.
  • the stamp 20 presses out the central recess 23.
  • a cross piece is produced, which is shown in FIGS. 10 and 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
EP80103120A 1979-06-09 1980-06-04 Schmiedevorrichtung Expired EP0021166B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL1979216275A PL121730B1 (en) 1979-06-09 1979-06-09 Forging apparatus
PL216275 1979-06-09

Publications (2)

Publication Number Publication Date
EP0021166A1 EP0021166A1 (de) 1981-01-07
EP0021166B1 true EP0021166B1 (de) 1983-05-25

Family

ID=19996814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103120A Expired EP0021166B1 (de) 1979-06-09 1980-06-04 Schmiedevorrichtung

Country Status (9)

Country Link
US (1) US4438644A (hu)
EP (1) EP0021166B1 (hu)
JP (1) JPS6018265B2 (hu)
AU (1) AU537204B2 (hu)
CA (1) CA1144404A (hu)
DE (1) DE3063453D1 (hu)
HU (1) HU182142B (hu)
IN (1) IN154651B (hu)
PL (1) PL121730B1 (hu)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009011173A1 (de) * 2009-03-04 2010-09-09 Bergfeld, Hans-Joachim, Dr. Verfahren zur Herstellung eines Schmiedeteils
DE102014212732A1 (de) * 2014-07-01 2016-01-07 Sms Meer Gmbh Verfahren und Anstauchvorrichtung zum Herstellen von abgesetzten Werkstücken, wie Wellen oder Stäbe

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6027440A (ja) * 1983-07-26 1985-02-12 Honda Motor Co Ltd クランクシヤフトの鍛造方法および荒鍛造用金型
FR2726493B1 (fr) * 1994-11-04 1997-04-25 Perrier Jean Outillage pour la fabrication d'un pivot a tete spherique avec une empreinte creuse cote queue
US20070056345A1 (en) * 2005-09-09 2007-03-15 Showa Denko K.K. Upsetting method and upsetting apparatus
JP6645215B2 (ja) * 2016-01-28 2020-02-14 大同特殊鋼株式会社 合金塊の製造方法
CN117531947A (zh) * 2024-01-09 2024-02-09 江苏捷凯电力器材有限公司 一种碗头挂板的锻造模具

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414549A (en) * 1944-01-29 1947-01-21 Clearing Machine Corp Crankshaft twisting machine
US2747253A (en) * 1951-02-19 1956-05-29 Cie Forges Et Acieries Marine Device for forging parts having large cross-sectional variations
US2827685A (en) * 1952-07-24 1958-03-25 English Steel Corp Ltd Apparatus for forging crank-shafts and like work-pieces
GB733175A (en) * 1952-07-24 1955-07-06 English Steel Corp Ltd Improvements in apparatus for forging crank-shafts and like work-pieces
US3348407A (en) * 1963-10-02 1967-10-24 Ts Lab Obrobki Plastycznej Device and particularly forging apparatus for simultaneous upsetting and bending of material like bars, rods or ingots
BE653821A (hu) * 1963-10-02
DE1527280B1 (de) * 1964-05-08 1971-02-11 Ts Lab Obrobki Plastycznej Vorrichtung zum Schmieden von Kurbelwellen
US3588933A (en) * 1968-06-19 1971-06-29 George J Shinopulos Method and apparatus for simultaneously upset forming both ends of a ductile material rod blank or the like
CS184303B2 (en) * 1968-07-19 1978-08-31 Gabriel Ruget Equipment for forging of crankshafts and other similar products
PL82101B1 (hu) * 1971-07-31 1975-10-31
DE2303451C2 (de) * 1973-01-25 1975-03-06 Eumuco Ag Fuer Maschinenbau, 5090 Leverkusen Vorrichtung zum Schmieden von Kurbelwellen, Flanschwellen u.dgl. mittels einer Schmiedepresse
PL102814B1 (pl) * 1975-03-15 1979-04-30 Instytut Obrobki Plastycznej Sposob kucia wykorbien pojedynczych walow polskladanych,urzadzenie do kucia,zwlaszcza kucia wykorbien pojedynczych walow polskladanych i przyrzad do speczania zwlaszcza przedkuwek pojedynczych wykorbien walow polskladanych
YU1979A (en) * 1978-01-14 1983-02-28 Inst Obrobki Plastucznej Device for forging in a press

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009011173A1 (de) * 2009-03-04 2010-09-09 Bergfeld, Hans-Joachim, Dr. Verfahren zur Herstellung eines Schmiedeteils
DE102014212732A1 (de) * 2014-07-01 2016-01-07 Sms Meer Gmbh Verfahren und Anstauchvorrichtung zum Herstellen von abgesetzten Werkstücken, wie Wellen oder Stäbe
DE102014212732B4 (de) 2014-07-01 2022-02-24 Sms Group Gmbh Verfahren und Anstauchvorrichtung zum Herstellen von abgesetzten Werkstücken, wie Wellen oder Stäbe

Also Published As

Publication number Publication date
PL216275A1 (hu) 1981-01-30
AU537204B2 (en) 1984-06-14
IN154651B (hu) 1984-11-24
CA1144404A (en) 1983-04-12
JPS6018265B2 (ja) 1985-05-09
EP0021166A1 (de) 1981-01-07
JPS561237A (en) 1981-01-08
HU182142B (en) 1983-12-28
DE3063453D1 (en) 1983-07-07
PL121730B1 (en) 1982-05-31
US4438644A (en) 1984-03-27
AU5888680A (en) 1980-12-11

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