EP0048499A1 - Device for upsetting on presses - Google Patents
Device for upsetting on presses Download PDFInfo
- Publication number
- EP0048499A1 EP0048499A1 EP81107830A EP81107830A EP0048499A1 EP 0048499 A1 EP0048499 A1 EP 0048499A1 EP 81107830 A EP81107830 A EP 81107830A EP 81107830 A EP81107830 A EP 81107830A EP 0048499 A1 EP0048499 A1 EP 0048499A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- die
- holders
- articulated
- articulated levers
- bearings
- 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
Links
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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
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- 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, with two arranged between the head piece and the base, the forged material clamping and relative to the press table movably mounted transverse to the direction of the press ram stroke, divided dies, the lower and upper halves of which are arranged in a die holder and the holders of the upper and lower dies are coupled to one another, both die holders, which are located on one side of the die-dividing plane, being articulated on articulated levers, which in turn are mounted on the base frame, and the inner articulated levers, which are closer to the compression zone, on the lower die holders are articulated below the die parting plane, and the bearings of the outer articulated levers, which are further away from the compression zone, are supported on projections which are arranged on the upper surface of the underframe.
- Devices for forging crank crankings by upsetting and bending a rod are known, in which the press ram by means of articulated levers with as a clamp baking is connected to form-fitting compression tools 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-PS 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 "tilt" increases.
- 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. Two crossbars 3 are held on the lower projections 1b. 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 the shape of a fork or U. 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-cylindrical.
- Each articulated lever is connected and secured to the bearing rollers by two connecting members 6.
- the links have that Shape 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 (FIG. 5).
- a bearing roller 9 is attached to each lower die holder 7 above the die division 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 16a, 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 operates as follows: in the open state, the part to be forged is placed in Drawing not shown material in the form of a rod on the lower tool inserts 20 and starts the press.
- the press table 22 and the pressing are s s t Schemeel with .23 respectively.
- 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. But it can also be installed in horizontal presses in a horizontal position.
Abstract
Die Vorrichtung zum Stauchen auf Pressen weist die folgenden Merkmale auf: Zwei geteilte, aus Matrizenhälften (20, 21) zusammengesetzte Matrizen, welche das zu stauchende Material klemmen, sind in Matrizen-haltern (7, 18) zwischen dem Kopfstück (16) und dem Untergestell (1) angeordnet. Die Matrizenhalter (7, 18) sind quer zur Richtung des Presseströßelhubes beweglich gelagert. Die Halter (7) der Matrizenhälften (20) welche sich auf einer Seite der Matrizenteilungsebene (P) befinden sind an Gelenkhebeln (5 und 11) angelenkt, welche ihrerseits am Gestell (1) gelagert sind. Die Halter (18) der anderen Matrizenhälften (21) welche sich auf der anderen Seite der Matrizenteilungsebene (P) befinden, werden mittels Mitnehmern (18a) an die Halter (7) gekoppelt. Die unteren Lagerungen der Gelenkhebel(5), welche naher an der Stauchzone angeordnet sind, stützen sich an Querbalken (3), welche am unteren Teil der das Untergestell bildenden Balken (1) befestigt sind. Die oberen Lagerungen dieser Gelenkhebel (5) sind an den Matrizenhaltern (7) unterhalb der Matrizenteilungsebene (P) angeordnet Die unteren Lagerungen der Gelenkhebel (11), welche weiter von der Stauchzone entfernt sind, sind im oberen Teil des Balkens (1) abgestützt und die oberen Lagerungen dieser Gelenkhebel (11) sind an den Matrizenhaltern (7) oberhalb der Matrizenteilungsebene (P) angeordnet.The device for upsetting on presses has the following features: Two divided dies, which are composed of die halves (20, 21) and which clamp the material to be upsetted, are in die holders (7, 18) between the head piece (16) and the die Base (1) arranged. The die holders (7, 18) are movably mounted transversely to the direction of the press ram stroke. The holders (7) of the die halves (20) which are located on one side of the die parting plane (P) are articulated on articulated levers (5 and 11) which in turn are mounted on the frame (1). The holders (18) of the other die halves (21) which are located on the other side of the die division plane (P) are coupled to the holders (7) by means of drivers (18a). The lower bearings of the articulated levers (5), which are arranged closer to the compression zone, are supported on crossbeams (3) which are fastened to the lower part of the beams (1) forming the underframe. The upper bearings of these articulated levers (5) are arranged on the die holders (7) below the die division plane (P). The lower bearings of the articulated levers (11), which are further away from the compression zone, are supported in the upper part of the beam (1) and the upper bearings of these articulated levers (11) are arranged on the die holders (7) above the die parting plane (P).
Description
Die Erfindung betrifft eine Vorrichtung zum Stauchen auf Pressen, mit zwei zwischen dem Kopfstück und dem Untergestell angeordneten, das geschmiedete Material klemmenden und gegenüber dem Pressetisch quer zur Richtung des Pressestößelhubes beweglich gelagerten geteilten Matrizen, deren untere und obere Hälften in je einem Matrizenhalter angeordnet sind und die Halter der oberen und unteren Matrizen miteinander gekoppelt sind, wobei beide Matrizenhalter, welche sich auf einer Seite der Matrizenteilungsebene befinden, an Gelenkhebeln angelenkt sind, welche ihrerseits am Untergestell gelagert sind, und die inneren Gelenkhebel, welche sich näher der Stauchzone befinden, an den unteren Matrizenhaltern unterhalb der Matrizenteilungsebene angelenkt sind, und die Lagerungen der äußeren Gelenkhebel, welche weiter von der Stauchzone entfernt sind, sich an Vorsprüngen stützen, welche auf der oberen Fläche des Untergestells angeordnet sind.The invention relates to a device for upsetting on presses, with two arranged between the head piece and the base, the forged material clamping and relative to the press table movably mounted transverse to the direction of the press ram stroke, divided dies, the lower and upper halves of which are arranged in a die holder and the holders of the upper and lower dies are coupled to one another, both die holders, which are located on one side of the die-dividing plane, being articulated on articulated levers, which in turn are mounted on the base frame, and the inner articulated levers, which are closer to the compression zone, on the lower die holders are articulated below the die parting plane, and the bearings of the outer articulated levers, which are further away from the compression zone, are supported on projections which are arranged on the upper surface of the underframe.
Es sind Vorrichtungen zum Schmieden von Kurbelkröpfungen durch Stauchen und Biegen eines Stabes bekannt, in welchen der Pressestößel mittels Gelenkhebeln mit den als Klemmbacken mit Formschluß ausgebildeten Stauchwerkzeugen verbunden ist, die sich quer zur Richtung des Pressestößelhubes bewegen. Die Gelenkhebel sind an einer Seite an einem am Pressestößel angeordneten Kopfstück, und an dem anderen Ende auf der Rückseite der Stauchwerkzeuge oberhalb der Teilungsebene der Klemmbacken angelenkt.Devices for forging crank crankings by upsetting and bending a rod are known, in which the press ram by means of articulated levers with as a clamp baking is connected to form-fitting compression tools 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.
Aus der DE-PS 1 301 297 ist zum Beispiel eine Vorrichtung der oben erwähnten Art bekannt, in welcher die unteren Enden der Gelenkhebel an den oberen Stauchwerkzeughälften oberhalb der Teilungsebene dieser Werkzeuge angelenkt sind. Die Breite der Gelenkhebel entspricht dabei der Breite der Stauchwerkzeughälften.DE-PS 1 301 297, for example, 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.
So eine Gestaltung der Vorrichtung hat den Nachteil, daß wegen der Anlenkung der unteren Gelenkhebelenden lediglich auf einer Seite der Werkzeugteilungsebene während des Arbeitshubes ein Moment des Kräftepaares entsteht, welches die ungleichmäßige Belastung der einzelnen Gelenkhebel bewirkt. Die Werkzeuge haben deswegen eine Tendenz zum "Kippen". Bekanntlich steigt in solchen Vorrichtungen die Stauchkraft mit dem Ausschlag der Gelenkhebel. Mit diesem Ausschlag wächst aber auch die Differenz zwischen den Belastungen der einzelnen Gelenkhebel und des Kräftepaarmoments, das das "Kippen" der Stauchwerkzeuge bewirkt.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". In such devices, it is known that 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 "tilt" increases.
In der bekannten Vorrichtung sind die oberen Enden der Gelenkhebel lediglich an der unteren Fläche des Kopfstückes angelenkt. Während des Arbeitshubes entstehen deswegen Biegekräfte, die auf die Konstruktion einwirken.In the known device, 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.
Die der Erfindung zugrunde liegende Aufgabe besteht darin, das Kippen der Stauchwerkzeuge und unerwünschte Biegespannungen zu beseitigen.The object underlying the invention is to eliminate the tilting of the upsetting tools and undesirable bending stresses.
Diese Aufgabe wird erfindungsgemäß bei der Vorrichtung der eingangs erwähnten Art dadurch gelöst, daß die unteren Lagerungen der inneren Gelenkhebel sich an Querbalken stützen, welche am unteren Teil der das Untergestell bildenden Balken 1 befestigt sind und die oberen Lagerungen der äußeren Gelenkhebel an den unteren Matrizenhaltern oberhalb der Matrizenteilungsebene angeordnet sind.This object is achieved in the device of the type mentioned in that the lower Bearings of the inner articulated levers are supported on crossbeams which are fastened to the lower part of the
Die erfindungsgemäße Vorrichtung hat den Vorteil, daß die das Untergestell bildenden Balken nicht gebogen, sondern lediglich in Längsrichtung gezogen werden. Auf die Stauchmatrizen wirkt kein Kräftepaarmoment. Die Belastungen der Gelenkhebel sind gleichmäßiger verteilt, als bei bekannten Vorrichtungen. Dieses ermöglicht ein genaueres Schmieden. Außerdem ist der erforderliche Materialaufwand bei den erfindungsgemäßen Vorrichtungen kleiner.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.
Anhand der Zeichnung die eine Vorrichtung im offenen Zustand, in der Seitenansicht teilweise geschnitten zeigt, wird die Erfindung näher erläutert.The invention is explained in more detail with the aid of the drawing, which shows a device in the open state, partially cut away in the side view.
Die in der Zeichnung dargestellte Vorrichtung besteht aus zwei Baugruppen, nämlich einer unteren und einer oberen.The device shown in the drawing consists of two assemblies, namely a lower and an upper.
Die untere Baugruppe hat als Untergestell zwei Balken 1, deren Umriß einem langgestreckten Buchstaben H ähnlich ist. Diese Balken sind mit Distanzschrauben miteinander verbunden. Diese Balken 1 sind auf einer Platte 2 abgestützt. Jeder Balken 1 hat auf der oberen Fläche zwei Vorsprünge 1a und auf der unteren Fläche zwei weitere Vorsprünge 1b. An den unteren Vorsprüngen 1b sind zwei Querbalken 3 gehalten. An jedem dieser Balken 3 sitzt eine Lagerwalze 4. An jeder Lagerwalze 4 ist ein Gelenkhebel 5 angelenkt, der gabelförmig bzw. U-förmig gestaltet ist. Die untere Lagerfläche am Sockel des Gelenkhebels 5 ist konkavzylindrisch, dagegen sind die oberen Lagerflächen des Gelenkhabels 5 konvex-walzenförmig. Jeder Gelenkhebel ist mit zwei Verbindungsgliedern 6 mit den Lagerwalzen verbunden und gesichert. Die Verbindungsglieder haben die Gestalt von Überlaschungen. Der Anlenkpunkt jedes Matrizenhalters 7 am Gabelhebel 5 befindet sich unterhalb der Matrizenteilungsebene P. Der Matrizenhalter ist am Gelenkhebel 5 mittels Bolzen 8 (Fig. 5) gesichert. Zu jedem unteren Matrizenhalter 7 ist oberhalb der Matrizenteilungsebene P beiderseitig je eine Lagerwalze 9 befestigt. Analoge Lagerwalzen 10 sind auf der oberen Fläche des Balkens 1 und am oberen Vorsprung 1a vorgesehen. Zwischen den Lagerwalzen 9 und 10 ist je ein Gelenkhebel 11 angeordnet. In der Vorrichtung ist also jeder untere Matrizenhalter an zwei Gelenkhebeln 11 und einem Gelenkhebel 5 angelenkt und bildet mit ihnen und den Balken eine Parallelogrammführung.The lower assembly has two
An den Balkenenden sind hydraulische Zylinder 13 befestigt, die mittels Zugseilen mit den Matrizenhaltern 7 verbunden sind. Diese Zugseile werden durch Rollen 12 geführt. Die Zylinder 13 dienen zum Rückführen der Matrizenhalter in die Ausgangsstellung bis zum Anschlag 15.
Die obere Baugruppe der Vorrichtung besteht aus zwei oberen Balken 16, welche mit Distanzschrauben miteinander verbunden sind. Die Balken 16 sind mit zwei waagrechten Führungsstücken 16a ausgerüstet, an welchen zwei obere Matrizenhalter 18 gleitend befestigt sind. Diese Matrizenhalter liegen in ihrer Ausgangsstellung an Anschlägen 19 an. Die Matrizenhalter weisen Vorsprünge 18a auf, welche als Mitnehmer dienen und während des Arbeitshubes mit den Vorsprüngen 7a des unteren Matrizenhalters 7 gekoppelt werden. Auf diese Weise werden die Matrizenhalter 7 und 18 gekoppelt. In die Vorrichtung werden die Werkzeugeinsätze eingebaut. In die unteren Matrizenhalter 7 werden die Werkzeugeinsätze 20, in die oberen Matrizenhalter 18 die Werkzeugeinsätze 21 eingebaut.The upper assembly of the device consists of two
Die erfindungsgemäße Vorrichtung arbeitet folgendermaßen: Im offenen Zustand legt man das zu schmiedende in der Zeichnung nicht dargestellte Material in Form eines Stabes auf die unteren Werkzeugeinsätze 20 und setzt die Presse in Gang. In der Zeichnung sind der Pressentisch mit 22 und der Pressenstößel mit .23 bezeichnet. Während des Arbeitshubes pressen die oberen Matrizenhalter 18 auf die unteren Matrizenhalter 7. Wegen der Lotabweichung der Gelenkhebel 5 und 11 in Richtung der vertikalen Symmetrieebene, und wegen der beweglichen Anordnung der oberen Matrizenhalter 18, werden die linken und die rechten Matrizen in waagerechter Richtung gegeneinander bewegt. Der zwischen den Stirnflächen der zwei Werkzeugeinsatzpaare 20, 21 befindliche Stababschnitt wird gestaucht.The device according to the invention operates as follows: in the open state, the part to be forged is placed in Drawing not shown material in the form of a rod on the lower tool inserts 20 and starts the press. In the drawing, the press table 22 and the pressing are s s tößel with .23 respectively. During the working stroke, the
Die Vorrichtung kann in vertikalen Pressen in der auf der Zeichnung dargestellten lotrechten Lage, oder in der umgekehrten Position angewandt werden. Sie kann aber auch in horizontalen Pressen in waagrechter Lage montiert werden.The device can be used in vertical presses in the vertical position shown in the drawing, or in the reverse position. But it can also be installed in horizontal presses in a horizontal position.
Claims (1)
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 |
|---|---|---|---|
| PL1978204016A PL112203B1 (en) | 1978-01-14 | 1978-01-14 | Method of and apparatus for forging crank throws |
| PL204016 | 1978-01-14 | ||
| 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 true EP0048499A1 (en) | 1982-03-31 |
| EP0048499B1 EP0048499B1 (en) | 1984-07-25 |
Family
ID=26652894
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP81107830A Expired EP0048499B1 (en) | 1978-01-14 | 1979-01-12 | Device for upsetting on presses |
| EP79100095A Expired EP0003139B1 (en) | 1978-01-14 | 1979-01-12 | A method, slug and device for forging a crank shaft |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP79100095A Expired EP0003139B1 (en) | 1978-01-14 | 1979-01-12 | A method, slug and device for forging a crank shaft |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US4272979A (en) |
| EP (2) | EP0048499B1 (en) |
| JP (1) | JPS54148160A (en) |
| AR (1) | AR216206A1 (en) |
| AT (1) | AT362979B (en) |
| BR (1) | BR7900201A (en) |
| CA (1) | CA1106653A (en) |
| DK (1) | DK151533B (en) |
| ES (2) | ES476823A1 (en) |
| FI (1) | FI67795C (en) |
| HU (1) | HU180814B (en) |
| IN (1) | IN152965B (en) |
| YU (1) | YU1979A (en) |
Families Citing this family (13)
| 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 |
| JPH03503262A (en) * | 1988-11-25 | 1991-07-25 | スウェルドロフスキー、インジェネルノ‐ペダゴギチェスキー、インスチツート | Machine for cyclically deforming continuous strips |
| PL187876B1 (en) * | 1999-03-05 | 2004-10-29 | Inst Obrobki Plastycznej | Upset forging apparatus |
| KR100759194B1 (en) | 2000-07-31 | 2007-09-14 | 닛폰 세이키 가부시키가이샤 | Lighting device |
| US20070056345A1 (en) * | 2005-09-09 | 2007-03-15 | Showa Denko K.K. | Upsetting method and upsetting apparatus |
| JP4854564B2 (en) * | 2007-03-30 | 2012-01-18 | リズム時計工業株式会社 | Lighting device |
| JP5751389B2 (en) * | 2012-12-12 | 2015-07-22 | 新日鐵住金株式会社 | Finishing material forming apparatus for forged crankshaft for 3-cylinder engine and method for producing forged crankshaft for 3-cylinder engine using the same |
| CN103551850B (en) * | 2013-11-14 | 2016-08-17 | 重庆应国机械制造有限责任公司 | Singly turn the Closed Extrusion Forging Technology of full-fibre crankshaft forging |
| DE102014212732B4 (en) * | 2014-07-01 | 2022-02-24 | Sms Group Gmbh | Process and upsetting device for the production of offset workpieces such as shafts or rods |
| US10654092B2 (en) * | 2015-05-14 | 2020-05-19 | Neturen Co., Ltd. | Method and apparatus for manufacturing stepped member |
| CN113059102B (en) * | 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 | Multi-station forging method and device for guide bar hanger base for warp knitting machine |
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|---|---|---|---|---|
| US2827685A (en) * | 1952-07-24 | 1958-03-25 | English Steel Corp Ltd | Apparatus for forging crank-shafts and like work-pieces |
| DE1301297B (en) * | 1964-09-02 | 1969-08-21 | Ts Lab Obro Bki Plastycznej | Device for upsetting elongated workpieces on presses |
| DE2236733A1 (en) * | 1971-07-31 | 1973-02-15 | Inst Obrobki Plastycznej | METHOD AND DEVICE FOR FORGING VARIOUS SHAPED PARTS FROM LONGITUDINAL BARS |
| DE2303451B1 (en) * | 1973-01-25 | 1974-07-25 | Eumuco Ag Fuer Maschinenbau, 5090 Leverkusen | Device for forging crankshafts, flange shafts and the like by means of a forging press |
| DE2610568A1 (en) * | 1975-03-15 | 1976-09-23 | Inst Obrobki Plastycznej | METHODS AND DEVICES FOR THE MANUFACTURING OF CRANK STACKS FOR SEMI-BUILT CRANKSHAFT |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR779043A (en) * | 1933-12-20 | 1935-03-28 | Cie Forges Et Acieries Marine | Process for forging axles or bent shafts, and similar mechanical parts |
| US2743500A (en) * | 1950-12-07 | 1956-05-01 | Erie Forge Company | Forging method and apparatus |
| DE957007C (en) * | 1954-02-09 | 1957-01-24 | Schloemann Ag | Method and device for forging multi-stroke crankshafts |
| US2959840A (en) * | 1955-02-21 | 1960-11-15 | Baldwin Lima Hamilton Corp | Apparatus for forging crankshafts |
| FR1166199A (en) * | 1956-02-23 | 1958-11-04 | Schloemann Ag | Device for gradual forging of crankshaft bends |
| FR1166978A (en) * | 1956-02-24 | 1958-11-18 | Schloemann Ag | Device for forging crankshafts |
| 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 |
| CS184303B2 (en) * | 1968-07-19 | 1978-08-31 | Gabriel Ruget | Equipment for forging of crankshafts and other similar products |
| JPS4924337A (en) * | 1972-06-27 | 1974-03-04 | ||
| JPS5139553A (en) * | 1974-10-01 | 1976-04-02 | Kobe Steel Ltd | KURANKUSUROONOKATAIRETANZOSOCHI |
-
1979
- 1979-01-08 YU YU00019/79A patent/YU1979A/en unknown
- 1979-01-10 AR AR275122A patent/AR216206A1/en active
- 1979-01-10 CA CA319,436A patent/CA1106653A/en not_active Expired
- 1979-01-11 US US06/002,777 patent/US4272979A/en not_active Expired - Lifetime
- 1979-01-12 DK DK013979AA patent/DK151533B/en not_active Application Discontinuation
- 1979-01-12 FI FI790099A patent/FI67795C/en not_active IP Right Cessation
- 1979-01-12 EP EP81107830A patent/EP0048499B1/en not_active Expired
- 1979-01-12 BR BR7900201A patent/BR7900201A/en unknown
- 1979-01-12 EP EP79100095A patent/EP0003139B1/en not_active Expired
- 1979-01-12 HU HU79II288A patent/HU180814B/en unknown
- 1979-01-12 AT AT0023579A patent/AT362979B/en not_active IP Right Cessation
- 1979-01-13 ES ES476823A patent/ES476823A1/en not_active Expired
- 1979-01-13 ES ES476824A patent/ES476824A1/en not_active Expired
- 1979-01-16 JP JP382079A patent/JPS54148160A/en active Granted
- 1979-03-16 IN IN257/CAL/79A patent/IN152965B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2827685A (en) * | 1952-07-24 | 1958-03-25 | English Steel Corp Ltd | Apparatus for forging crank-shafts and like work-pieces |
| DE1301297B (en) * | 1964-09-02 | 1969-08-21 | Ts Lab Obro Bki Plastycznej | Device for upsetting elongated workpieces on presses |
| DE2236733A1 (en) * | 1971-07-31 | 1973-02-15 | Inst Obrobki Plastycznej | METHOD AND DEVICE FOR FORGING VARIOUS SHAPED PARTS FROM LONGITUDINAL BARS |
| DE2303451B1 (en) * | 1973-01-25 | 1974-07-25 | Eumuco Ag Fuer Maschinenbau, 5090 Leverkusen | Device for forging crankshafts, flange shafts and the like by means of a forging press |
| DE2610568A1 (en) * | 1975-03-15 | 1976-09-23 | Inst Obrobki Plastycznej | METHODS AND DEVICES FOR THE MANUFACTURING OF CRANK STACKS FOR SEMI-BUILT CRANKSHAFT |
Also Published As
| Publication number | Publication date |
|---|---|
| US4272979A (en) | 1981-06-16 |
| FI67795B (en) | 1985-02-28 |
| EP0003139A1 (en) | 1979-07-25 |
| JPS5653455B2 (en) | 1981-12-18 |
| DK151533B (en) | 1987-12-14 |
| YU1979A (en) | 1983-02-28 |
| ATA23579A (en) | 1980-11-15 |
| AR216206A1 (en) | 1979-11-30 |
| CA1106653A (en) | 1981-08-11 |
| ES476824A1 (en) | 1979-06-16 |
| FI67795C (en) | 1985-06-10 |
| ES476823A1 (en) | 1979-07-16 |
| JPS54148160A (en) | 1979-11-20 |
| EP0048499B1 (en) | 1984-07-25 |
| DK13979A (en) | 1979-07-15 |
| EP0003139B1 (en) | 1983-05-25 |
| BR7900201A (en) | 1979-08-14 |
| IN152965B (en) | 1984-05-12 |
| AT362979B (en) | 1981-06-25 |
| FI790099A (en) | 1979-07-15 |
| HU180814B (en) | 1983-04-29 |
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