[go: up one dir, main page]

EP0048499B1 - Vorrichtung zum Stauchen auf Pressen - Google Patents

Vorrichtung zum Stauchen auf Pressen Download PDF

Info

Publication number
EP0048499B1
EP0048499B1 EP81107830A EP81107830A EP0048499B1 EP 0048499 B1 EP0048499 B1 EP 0048499B1 EP 81107830 A EP81107830 A EP 81107830A EP 81107830 A EP81107830 A EP 81107830A EP 0048499 B1 EP0048499 B1 EP 0048499B1
Authority
EP
European Patent Office
Prior art keywords
matrix
articulated levers
holders
articulated
underframe
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
EP81107830A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0048499A1 (de
Inventor
Tadeusz 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
Priority claimed from PL1978204016A external-priority patent/PL112203B1/pl
Priority claimed from PL21113278A external-priority patent/PL122409B1/pl
Application filed by Instytut Obrobki Plastycznej filed Critical Instytut Obrobki Plastycznej
Priority to DE7979100095T priority Critical patent/DE2965481D1/de
Publication of EP0048499A1 publication Critical patent/EP0048499A1/de
Application granted granted Critical
Publication of EP0048499B1 publication Critical patent/EP0048499B1/de
Expired legal-status Critical Current

Links

Images

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
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/08—Making machine elements axles or shafts crankshafts
    • 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 device for upsetting on presses, according to the first part of the claim.
  • Devices for forging crank cranks by upsetting and bending a rod are known, in which the press ram is connected by means of articulated levers to the upset tools designed as clamping jaws with positive locking, which move transversely to the direction of the press ram stroke.
  • the articulated levers are articulated on one side to a head piece arranged on the press ram and at the other end on the back of the upsetting tools above the parting plane of the clamping jaws.
  • DE-B-1 301 297 discloses a device of the type mentioned above, in which the lower ends of the articulated levers are articulated on the upper upsetting tool halves above the parting plane of these tools.
  • the width of the articulated lever corresponds to the width of the upsetting tool halves.
  • Such a design of the device has the disadvantage that, due to the articulation of the lower ends of the articulated levers, only one side of the pair of forces occurs on one side of the tool division plane during the working stroke, which causes the uneven loading of the individual articulated levers.
  • the tools therefore have a tendency to “tip over”.
  • the compressive force increases with the deflection of the articulated lever. With this deflection, however, the difference between the loads on the individual articulated levers and the moment of force that causes the upsetting tools to tip over also increases.
  • the upper ends of the articulated levers are only articulated on the lower surface of the head piece. Therefore, bending forces occur during the working stroke, which act on the construction.
  • the object underlying the invention is to eliminate the tilting of the upsetting tools and undesirable bending stresses.
  • the device according to the invention has the advantage that the beams forming the underframe are not bent, but are only pulled in the longitudinal direction. No moment of force acts on the compression matrices. The loads on the articulated levers are distributed more evenly than in known devices. This enables more accurate forging. In addition, the cost of materials required for the devices according to the invention is lower.
  • the device shown in the drawing consists of two assemblies, namely a lower and an upper.
  • the lower assembly has two bars 1 as a base, the outline of which is similar to an elongated letter H. These bars are connected to each other with spacer screws. These bars 1 are supported on a plate 2. Each bar 1 has two projections 1a on the upper surface and two further projections 1b on the lower surface. On the lower projections 1 b two crossbars 3 are held. A bearing roller 4 is seated on each of these beams 3. An articulated lever 5 is articulated on each bearing roller 4 and is designed in a fork-shaped or U-shaped manner. The lower bearing surface on the base of the articulated lever 5 is concave-cylindrical, whereas the upper bearing surfaces of the articulated lever 5 are convex-roller-shaped.
  • Each articulated lever is connected and secured with two connecting members 6 to the bearing rollers.
  • the links are in the form of surprises.
  • the articulation point of each die holder 7 on the fork lever 5 is below the die parting plane P.
  • the die holder is secured to the articulated lever 5 by means of bolts 8.
  • a bearing roller 9 is attached to each lower die holder 7 above the die parting plane P on both sides.
  • Analog bearing rollers 10 are provided on the upper surface of the beam 1 and on the upper projection 1a.
  • An articulated lever 11 is arranged between each of the bearing rollers 9 and 10. In the device, therefore, each lower die holder is articulated on two articulated levers 11 and an articulated lever 5 and forms a parallelogram guide with them and the bars.
  • Hydraulic cylinders 13 are fastened to the beam ends and are connected to the die holders 7 by means of pull cables. These traction ropes are guided by rollers 12. The cylinders 13 serve to return the die holder to the starting position up to the stop 15.
  • the upper assembly of the device consists of two upper beams 16, which are connected to each other with spacer screws.
  • the beams 16 are equipped with two horizontal guide pieces 16b, to which two upper die holders 18 are slidably attached. In their starting position, these die holders rest against stops 19.
  • the die holders have projections 18a, which serve as drivers and are coupled to the projections 7a of the lower die holder 7 during the working stroke. In this way, the die holders 7 and 18 are coupled.
  • the tool inserts are installed in the device.
  • the tool inserts 20 are installed in the lower die holder 7 and the tool inserts 21 in the upper die holder 18.
  • the device according to the invention works as follows: in the open state, the one to be forged is not shown in the drawing material shown in the form of a rod on the lower tool inserts 20 and starts the press.
  • the press table is designated 22 and the press ram 23.
  • the upper die holders 18 press onto the lower die holders 7. Because of the perpendicular deviation of the articulated levers 5 and 11 in the direction of the vertical plane of symmetry, and because of the movable arrangement of the upper die holders 18, the left and right dies are moved against each other in the horizontal direction .
  • the rod section located between the end faces of the two pairs of tool inserts 20, 21 is compressed.
  • the device can be used in vertical presses in the vertical position shown in the drawing, or in the reverse position. However, it can also be installed in horizontal presses in a horizontal position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
EP81107830A 1978-01-14 1979-01-12 Vorrichtung zum Stauchen auf Pressen Expired EP0048499B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE7979100095T DE2965481D1 (en) 1978-01-14 1979-01-12 A method, slug and device for forging a crank shaft

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PL204016 1978-01-14
PL1978204016A PL112203B1 (en) 1978-01-14 1978-01-14 Method of and apparatus for forging crank throws
PL21113278A PL122409B1 (en) 1978-11-22 1978-11-22 Crank forging method and apparatus therefor
PL211132 1978-11-22

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP79100095.3 Division 1979-01-12

Publications (2)

Publication Number Publication Date
EP0048499A1 EP0048499A1 (de) 1982-03-31
EP0048499B1 true EP0048499B1 (de) 1984-07-25

Family

ID=26652894

Family Applications (2)

Application Number Title Priority Date Filing Date
EP81107830A Expired EP0048499B1 (de) 1978-01-14 1979-01-12 Vorrichtung zum Stauchen auf Pressen
EP79100095A Expired EP0003139B1 (de) 1978-01-14 1979-01-12 Verfahren, Rohteil und Vorrichtung zum Schmieden von Kurbelkröpfungen

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP79100095A Expired EP0003139B1 (de) 1978-01-14 1979-01-12 Verfahren, Rohteil und Vorrichtung zum Schmieden von Kurbelkröpfungen

Country Status (13)

Country Link
US (1) US4272979A (es)
EP (2) EP0048499B1 (es)
JP (1) JPS54148160A (es)
AR (1) AR216206A1 (es)
AT (1) AT362979B (es)
BR (1) BR7900201A (es)
CA (1) CA1106653A (es)
DK (1) DK151533B (es)
ES (2) ES476823A1 (es)
FI (1) FI67795C (es)
HU (1) HU180814B (es)
IN (1) IN152965B (es)
YU (1) YU1979A (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL121730B1 (en) * 1979-06-09 1982-05-31 Instytut Obrobki Plastycznej Forging apparatus
US4517717A (en) * 1983-12-05 1985-05-21 Gentry Elvin O Crankshaft inspection apparatus and method
PL141712B1 (en) * 1983-12-13 1987-08-31 Instytut Obrobki Plastycznej Method of and apparatus for press forging of crankshafts
GB2232623A (en) * 1988-11-25 1990-12-19 Sverdlovsky Inzh Ped I Device for cyclic deformation of continuous strip
PL187876B1 (pl) * 1999-03-05 2004-10-29 Inst Obrobki Plastycznej Urządzenie do kucia przez spęczanie
EP1213565B1 (en) 2000-07-31 2005-10-19 Nippon Seiki Co., Ltd. Lighting device
US20070056345A1 (en) * 2005-09-09 2007-03-15 Showa Denko K.K. Upsetting method and upsetting apparatus
JP4854564B2 (ja) * 2007-03-30 2012-01-18 リズム時計工業株式会社 照明装置
CN104884185B (zh) * 2012-12-12 2016-11-02 新日铁住金株式会社 三汽缸发动机用锻造曲轴的精锻用坯料的成形装置及制造三汽缸发动机用锻造曲轴的方法
CN103551850B (zh) * 2013-11-14 2016-08-17 重庆应国机械制造有限责任公司 单拐全纤维曲轴锻件的闭式挤压锻造工艺
US10654092B2 (en) * 2015-05-14 2020-05-19 Neturen Co., Ltd. Method and apparatus for manufacturing stepped member
CN113059102B (zh) * 2021-03-15 2023-12-01 中机精密成形产业技术研究院（安徽）股份有限公司 一种经编机用梳栉吊架底座的多工位锻造方法及装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR779043A (fr) * 1933-12-20 1935-03-28 Cie Forges Et Acieries Marine Procédé pour le forgeage d'essieux ou arbres coudés, et organes mécaniques analogues
US2743500A (en) * 1950-12-07 1956-05-01 Erie Forge Company Forging method and apparatus
US2827685A (en) * 1952-07-24 1958-03-25 English Steel Corp Ltd Apparatus for forging crank-shafts and like work-pieces
DE957007C (de) * 1954-02-09 1957-01-24 Schloemann Ag Verfahren und Vorrichtung zum Schmieden von mehrhuebigen Kurbelwellen
US2959840A (en) * 1955-02-21 1960-11-15 Baldwin Lima Hamilton Corp Apparatus for forging crankshafts
FR1166199A (fr) * 1956-02-23 1958-11-04 Schloemann Ag Dispositif pour le forgeage graduel des coudes de vilebrequins
FR1166978A (fr) * 1956-02-24 1958-11-18 Schloemann Ag Dispositif pour le forgeage de vilebrequins
US3129488A (en) * 1960-05-20 1964-04-21 Schloemann Ag Progressive forging of multi-throw crankshafts
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
DE1301297B (de) * 1964-09-02 1969-08-21 Ts Lab Obro Bki Plastycznej Vorrichtung fuer das Stauchen laenglicher Werkstuecke auf Pressen
CS184303B2 (en) * 1968-07-19 1978-08-31 Gabriel Ruget Equipment for forging of crankshafts and other similar products
PL82101B1 (es) * 1971-07-31 1975-10-31
JPS4924337A (es) * 1972-06-27 1974-03-04
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
JPS5139553A (ja) * 1974-10-01 1976-04-02 Kobe Steel Ltd Kurankusuroonokatairetanzosochi
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FI67795C (fi) 1985-06-10
AT362979B (de) 1981-06-25
EP0048499A1 (de) 1982-03-31
AR216206A1 (es) 1979-11-30
FI790099A (fi) 1979-07-15
DK151533B (da) 1987-12-14
ES476824A1 (es) 1979-06-16
DK13979A (da) 1979-07-15
ES476823A1 (es) 1979-07-16
CA1106653A (en) 1981-08-11
JPS54148160A (en) 1979-11-20
EP0003139A1 (de) 1979-07-25
BR7900201A (pt) 1979-08-14
JPS5653455B2 (es) 1981-12-18
EP0003139B1 (de) 1983-05-25
US4272979A (en) 1981-06-16
YU1979A (en) 1983-02-28
ATA23579A (de) 1980-11-15
FI67795B (fi) 1985-02-28
HU180814B (en) 1983-04-29
IN152965B (es) 1984-05-12

Similar Documents

Publication Publication Date Title
AT504640B1 (de) Biegemaschine
EP0048499B1 (de) Vorrichtung zum Stauchen auf Pressen
EP0765735B1 (de) Kniehebel-Stanzpresse
DE3709555A1 (de) Abkantpresse
DE1966880C3 (de) Abschereinrichtung für eine Quertransportpresse
DE69018292T2 (de) Strangpressvorrichtung.
AT512174B1 (de) Biegepresse mit verstellbarem balkenelement
DE2344416C2 (de) Abkantpresse
EP0543772A1 (de) Presse
DE3881748T2 (de) Bügelpresse für Kleider.
EP3160726B1 (de) Verbesserte c-gestell-presse
DE3434470C2 (de) Biegepresse
DE1298955B (de) Arbeitskopf fuer ein Presswerkzeug
DE2810595A1 (de) Justier- und ueberlastungsschutz-vorrichtung fuer eine presse
DE2544711C3 (de) Schnellspannwerkzeug für Schmiedepressen
DE4026827A1 (de) Vorrichtung zur befestigung von werkzeugen und werkzeugtraeger einer stauchpresse
DE3802266A1 (de) Presse
DE2823799C3 (de) Verfahren zum Schmieden von Kurbelkröpfungen
DE2652886A1 (de) Biegebearbeitungseinrichtung
DE3914762A1 (de) Kombimaschine mit wenigstens zwei werkzeugen
DE1946675C3 (de) Biegemaschine zur Herstellung von gekrümmten Metallprofilstangen, insbesondere von Stoßstangen für Kraftfahrzeuge
DE3021332A1 (de) Vorrichtung zum verbinden wneigstens zweier bauteile durch ein schnitt-umform-verfahren
DE1301297B (de) Vorrichtung fuer das Stauchen laenglicher Werkstuecke auf Pressen
EP0484781B1 (de) Brammen-Stauchpresse für Warmbreitband-Walzwerke
EP0576964A1 (de) Schneid- und Umformpresse mit einem oder mehreren Antriebzylindern und einem Gelenkhebelantrieb

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AC Divisional application: reference to earlier application

Ref document number: 3139

Country of ref document: EP

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19820818

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RBV Designated contracting states (corrected)

Designated state(s): BE CH DE FR GB IT NL SE

AC Divisional application: reference to earlier application

Ref document number: 3139

Country of ref document: EP

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT NL SE

REF Corresponds to:

Ref document number: 2967146

Country of ref document: DE

Date of ref document: 19840830

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19841231

Year of fee payment: 7

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19870131

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19880801

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19890131

Ref country code: CH

Effective date: 19890131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890131

Year of fee payment: 11

Ref country code: GB

Payment date: 19890131

Year of fee payment: 11

Ref country code: SE

Payment date: 19890131

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19890331

Year of fee payment: 11

BERE Be: lapsed

Owner name: INSTYTUT OBROBKI PLASTYCZNEJ

Effective date: 19890131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19900112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19900113

ITTA It: last paid annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19900928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19901002

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 81107830.2

Effective date: 19901106