EP2243571A1 - Stroke adjustment system for mechanical press with scotch type kinematics - Google Patents

Stroke adjustment system for mechanical press with scotch type kinematics Download PDF

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Publication number
EP2243571A1
EP2243571A1 EP09405070A EP09405070A EP2243571A1 EP 2243571 A1 EP2243571 A1 EP 2243571A1 EP 09405070 A EP09405070 A EP 09405070A EP 09405070 A EP09405070 A EP 09405070A EP 2243571 A1 EP2243571 A1 EP 2243571A1
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EP
European Patent Office
Prior art keywords
mechanical
press according
toothed
eccentric ring
ram
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EP09405070A
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German (de)
French (fr)
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EP2243571B1 (en
Inventor
Sergio Formenti
Paolo Civardi
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Farina Presse SpA
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Farina Presse SpA
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Priority to AT09405070T priority Critical patent/ATE543587T1/en
Priority to EP09405070A priority patent/EP2243571B1/en
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    • 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
    • B21J9/10—Drives for forging presses
    • B21J9/18—Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/263—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks work stroke adjustment means

Definitions

  • the invention relates to a mechanical press for the hot and cold forging of metals with a ram adjustment system that uses a geared eccentric ring moved by a worm and is in a sliding kinematics.
  • the known systems for height adjustment use complex and bulky devices with relatively long times for adjustment of the press part thickness.
  • the purpose of the invention is the realization of a linkage kinematics press having a reliable system for rapid adjustment of the ram without suspending the production line of the forging line.
  • the main feature of the invention is the plunger adjustment system consisting of a toothed eccentric ring inserted into the gate and rotated by a worm.
  • the scenery is in two parts and locked by screws, which are stretched with springs to pick up the game between scenery and toothed eccentric ring.
  • the upper part of the gate is raised by means of hydraulic cylinders which oppose the closing force exerted by the springs.
  • the worm which is driven by a geared motor and whose position is monitored by an encoder, allows the toothed eccentric ring to run freely in its seat. This device allows the adjustment of the plunger in a very short time without interrupting the production cycle of the press.
  • a temperature sensor inserted in the lower part of the gate constantly measures the temperature of the bearing bush in the toothed eccentric ring.
  • the temperature sensor is located on a holder in the lower part of the gate and at the height of the recess of the toothed eccentric ring in contact with the bearing bush. At the height of the contact point with the temperature sensor, the bearing bush is rotated concentrically to the outer diameter of the toothed eccentric ring, so that a fixed position of the temperature sensor is ensured.
  • the plunger movement (18) (19) is dependent on the rotation of the eccentric shaft (20) in a slide kinematics integrated in the plunger structure (US Pat. Fig.1 ).
  • the link can run freely in the horizontal direction in the ram seat (18) (19) while forcing the ram to perform a vertical descent and ascent with a stroke twice the shaft eccentricity (FIG. 20).
  • pressure pin (15), guide bushes (16) and locknuts (17) which are tightened by a hydraulic device, with the lower part ( 19).
  • the scenery consists of a lower part (01) and an upper part (04) are mechanically locked with screws (06); These screws are clamped with disc springs, so that they lock the toothed eccentric ring (11) in his seat and cancel the existing between the toothed eccentric ring (11) and the slide (01) (04) existing game.
  • hydraulic cylinders (5) oppose the closing force of the upper part of the link (04) and restore the clearance provided between the toothed eccentric ring (11) and the link (01) (04).
  • the toothed eccentric ring (11) can rotate freely in its seat by means of the worm (09).
  • the worm (09) is located in the upper part of the gate (04) to eliminate further stresses during the working phase of the press, and allows to mount axially a geared motor (08) for turning the worm itself (09). Their position is controlled over the entire rotation time of the toothed eccentric ring (11) by means of an encoder (07).
  • the position of the temperature sensor (03), which remains in contact using a spring with the bearing bush (12) does not change in the central part of the bearing bush (12), because this is concentric with the outer diameter of the toothed eccentric ring (11) is rotated.
  • the lower and upper part of the scenery (01) (04) were executed sack channels, which are able to enter by opening radial lubrication holes (14) to the grease. These are executed in the toothed eccentric ring and open into the helical grooves on the inner surface of the bearing bush. This provision allows a uniform distribution of the grease near the work area on the entire pivot of the bearing bush (12).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The press has a plunger adjustment system with a toothed eccentric ring (11) and a worm gear (9). A self-locking structure is arranged for ensuring compensation of clearance during operation of the press. A series of screws (6) is arranged for mechanically locking a lower wing part (1) and an upper wing part (4) of the press. The lower wing part and the upper wing part are hydraulically opened by hydraulic cylinders (5). The lower and upper wing parts are separated from one another in closed condition of the self-locking system.

Description

Gebiet der TechnikField of engineering

Die Erfindung betrifft eine mechanische Presse für das Warm- und Kaltschmieden von Metallen mit einem Stößelverstellsystem, das einen von einer Schnecke bewegten verzahnten Exzenterring verwendet und sich in einer Kulissenkinematik befindet.The invention relates to a mechanical press for the hot and cold forging of metals with a ram adjustment system that uses a geared eccentric ring moved by a worm and is in a sliding kinematics.

Stand der TechnikState of the art

In einer mechanischen Presse für das Schmieden von Metallen ist die Bewegung des Stößels mit Festhub von der Drehung einer Exzenterwelle innerhalb eines aus einer oder mehreren Pleuelstangen bestehenden kinematischen Systems und ähnlichen kinematischen Systemen gegeben. Damit verbunden werden muss ein Stößelverstellsystem, um die Stärke der Pressteile zu ändern und ihre Maßgenauigkeit, die von Werkzeugverschleiß, Einfederung der Presse und Temperaturschwankungen während des Produktionsgangs abhängen, beizubehalten.In a mechanical press for forging metals, the fixed-stroke tappet movement is provided by the rotation of an eccentric shaft within a kinematic system consisting of one or more connecting rods and similar kinematic systems. To this must be connected a ram adjustment system to change the thickness of the pressed parts and to maintain their dimensional accuracy, which depends on tool wear, compression of the press and temperature variations during the production run.

Die für die Höhenverstellung bekannten Systeme verwenden komplexe und sperrige Vorrichtungen mit relativ langen Zeiten für eine Verstellung der Pressteildicke.The known systems for height adjustment use complex and bulky devices with relatively long times for adjustment of the press part thickness.

Daher muss während des Verstellens der Pressenbetrieb eine Zeit lang unterbrochen werden, was die Produktionskapazität der gesamten Linie nachteilig beeinflusst.Therefore, during the adjustment, the press operation must be interrupted for a while, which adversely affects the production capacity of the entire line.

Die am häufigsten auf Pressen für das Schmieden von Metall verwendeten Lösungen sind:

  • ○ Im Pressenuntergestell eingesetzte Verstellkeile
  • ○ Zwischen Pleuelfuß und Stößel angebrachter Exzenterbolzen
  • ○ Exzentrische Tischlager, die die gesamte Exzenterwelle mit entsprechendem Schwungrad-Kupplungs-Aggregat und Bremsaggregat bewegen.
  • ○ In einem Pleuelauge oder Pleuelfuß eingesetzter verzahnter Exzenterring mit Schnecke.
Quellennachweis Patent-Nr. Erfinder Veröffentlicht am Vergeben an JP2002239799 Hiraishi Kenji 2002-08-28 SUMITOMO H.I. JP2001300797 Yamada Yoshinobu 2001-10-30 SUMITOMO H.I. JP2001150199 Mototani Masahiro 2001-06-05 KOMATSU Mit freundlichen Grüßen CO. JP2001071085 Ozaki Yutaka 2001-03-21 SUMITOMO H.I. US5666838 G.Michael Dudick 1997-09-16 EFCO-ERIE JP8332600 Kitada Nobuo 1996-12-17 KURIMOTO LTD US5321969 Johannes Bakermans 1994-06-21 THE WHITAKER CO. DE3705235 Norbert Gober 1988-09-01 EUMUCO GB1402201 - 1975-08-06 ERFURT US3726123 Werner Bothe 1973-04-10 HASENCLEVER GB1177393 Zilka Stanislav 1970-01-14 SMERALOVY ZD Y The most commonly used solutions on presses for metal forging are:
  • ○ Adjustment wedges inserted in the press base frame
  • ○ An eccentric bolt attached between the big end and the push rod
  • ○ Eccentric table bearings that move the entire eccentric shaft with the corresponding flywheel clutch unit and brake unit.
  • ○ A toothed eccentric ring with a worm inserted into a connecting rod eye or connecting rod.
reference Patent no. inventor Published on Given to JP2002239799 Hiraishi Kenji 2002-08-28 SUMITOMO HI JP2001300797 Yamada Yoshinobu 2001-10-30 SUMITOMO HI JP2001150199 Mototani Masahiro 2001-06-05 KOMATSU Sincerely, CO. JP2001071085 Ozaki Yutaka 2001-03-21 SUMITOMO HI US5666838 G.Michael Dudick 1997-09-16 EFCO-ERIE JP8332600 Kitada Nobuo 1996-12-17 KURIMOTO LTD US5321969 Johannes Bakermans 1994-06-21 THE WHITAKER CO. DE3705235 Norbert Gober 1988-09-01 EUMUCO GB1402201 - 1975-08-06 ERFURT US3726123 Werner Bothe 1973-04-10 HASENCLEVER GB1177393 Zilka Stanislav 1970-01-14 SMERALOVY ZDY

Detaillierte Darstellung der ErfindungDetailed illustration of the invention

Zweck der Erfindung ist die Verwirklichung einer Presse mit Kulissenkinematik, die über ein zuverlässiges System für schnelles Verstellen des Stößels ohne Aussetzen des Produktionsgangs der Schmiedelinie verfügt.The purpose of the invention is the realization of a linkage kinematics press having a reliable system for rapid adjustment of the ram without suspending the production line of the forging line.

Die erzielten Vorteile sind:

  • ○ Geringerer Zeitaufwand für die Ausführung eines Stößelverstellganges während der Pressebetrieb.
  • ○ Automatische Verriegelung des verzahnten Exzenterrings mit Annullierung des Spiels in seinem Sitz.
  • ○ Hydraulische Entriegelung des verzahnten Exzenterrings während der Verstellphase, zur Erleichterung seiner Drehung.
  • ○ Temperaturüberwachung der Lagerbuchse im verzahnten Exzenterring durch Einbau eines Temperaturfühlers.
  • ○ Optimierung des Schmiersystems der oben genannten Lagerbuchse.
The advantages achieved are:
  • ○ Less time spent performing a ram adjustment during press operation.
  • ○ Automatic locking of the toothed eccentric ring with cancellation of the game in its seat.
  • ○ Hydraulic release of the toothed eccentric ring during the adjustment phase, to facilitate its rotation.
  • ○ Temperature monitoring of the bearing bush in the toothed eccentric ring by installing a temperature sensor.
  • ○ Optimization of the lubrication system of the bearing bush mentioned above.

Hauptmerkmal der Erfindung ist das aus einem in die Kulisse eingesetzten von einer Schnecke gedrehten verzahnten Exzenterring bestehende Stößelverstellsystem.
Die Kulisse ist zweiteilig und mittels Schrauben verriegelt, die mit Federn gespannt sind, um das Spiel zwischen Kulisse und verzahntem Exzenterring aufzuheben.
Während der Stößelverstellung wird der obere Teil der Kulisse mittels Hydraulikzylindern angehoben, die sich der von den Federn ausgeübten Schließkraft entgegensetzen.
Die Schnecke, die von einem Getriebemotor angetrieben ist und deren Stellung von einem Encoder überwacht wird, lässt den verzahnten Exzenterring frei in seinem Sitz laufen.
Diese Vorrichtung erlaubt die Verstellung des Stößels in sehr kurzer Zeit ohne Unterbrechung des Produktionsgangs der Presse.The main feature of the invention is the plunger adjustment system consisting of a toothed eccentric ring inserted into the gate and rotated by a worm.
The scenery is in two parts and locked by screws, which are stretched with springs to pick up the game between scenery and toothed eccentric ring.
During ram adjustment, the upper part of the gate is raised by means of hydraulic cylinders which oppose the closing force exerted by the springs.
The worm, which is driven by a geared motor and whose position is monitored by an encoder, allows the toothed eccentric ring to run freely in its seat.
This device allows the adjustment of the plunger in a very short time without interrupting the production cycle of the press.

Ein in den unteren Teil der Kulisse eingesetzter Temperaturfühler misst ständig die Temperatur der Lagerbuchse im verzahnten Exzenterring.
Der Temperaturfühler befindet sich auf einer Halterung im unteren Teil der Kulisse und auf der Höhe der Aussparung des verzahnten Exzenterrings in Kontakt mit der Lagerbuchse. Auf der Höhe des Berührungspunktes mit dem Temperaturfühler ist die Lagerbuchse konzentrisch zum Außendurchmesser des verzahnten Exzenterrings gedreht, damit eine feste Stellung des Temperaturfühlers gewährleistet ist.A temperature sensor inserted in the lower part of the gate constantly measures the temperature of the bearing bush in the toothed eccentric ring.
The temperature sensor is located on a holder in the lower part of the gate and at the height of the recess of the toothed eccentric ring in contact with the bearing bush. At the height of the contact point with the temperature sensor, the bearing bush is rotated concentrically to the outer diameter of the toothed eccentric ring, so that a fixed position of the temperature sensor is ensured.

Dank besonderer Vorkehrungen erlaubt das Schmiersystem die Verteilung des Schmierfetts direkt im am meisten beanspruchten Arbeitsbereich.

  • Die Kulisse besitzt in ihrem unteren und oberen Teil Rinnen zum Einspritzen des Schmierfettes durch die im verzahnten Exzenterring vorhandenen Durchgangslöcher.
  • Die Lagerbuchse sieht schraubenförmige Rinnen vor, die das Schmierfett sammeln und es auf der gesamten Innenfläche verteilen.
Thanks to special precautions, the lubrication system allows distribution of the grease directly in the most stressed working area.
  • The backdrop has in its lower and upper part grooves for injecting the grease through the present in the toothed eccentric through holes.
  • The bushing provides helical grooves that collect the grease and distribute it throughout the entire interior surface.

Verwirklichung der ErfindungRealization of the invention

In der beschriebenen mechanischen Schmiedepresse ist die Stößelbewegung (18) (19) Abhängig aus der Drehung der Exzenterwelle (20) in einer in die Stößelstruktur integrierten Kulissenkinematik (Abb.1).
Während der Drehung der Exzenterwelle kann die Kulisse frei in waagerechter Richtung im Stößelsitz (18) (19) laufen, während sie den Stößel zwingt, eine senkrechte Abstiegs- und Anstiegs-bewegung auszuführen mit einem Hub, der doppelt so hoch wie die Wellenexzentrität ist (20).
Um den Einbau der Bauteile der gesamten Kinematik zu vereinfachen, wird vorher der obere Teil des Stößels getrennt und dann mittels Druckbolzen (15), Führungsbuchsen (16) und Nutmuttern (17), die mit einer hydraulischen Vorrichtung festgezogen werden, mit dem unteren Teil (19) verbunden.In the mechanical forging press described, the plunger movement (18) (19) is dependent on the rotation of the eccentric shaft (20) in a slide kinematics integrated in the plunger structure (US Pat. Fig.1 ).
During the rotation of the eccentric shaft, the link can run freely in the horizontal direction in the ram seat (18) (19) while forcing the ram to perform a vertical descent and ascent with a stroke twice the shaft eccentricity (FIG. 20).
In order to simplify the installation of the components of the entire kinematics, previously the upper part of the plunger is separated and then by means of pressure pin (15), guide bushes (16) and locknuts (17), which are tightened by a hydraulic device, with the lower part ( 19).

Die Höhenverstellung des Stößels zum Einstellen der Werkzeuge (Abb.2) erfolgt mittels eines verzahnten Exzenterrings (11), der in der Kulisse (01) (04) untergebracht ist und mittels einer Schnecke (09) gedreht wird. Die Kulisse besteht aus einem unteren Teil (01) und einem oberen Teil (04) mechanisch mit Schrauben (06) verriegelten sind; diese Schrauben sind mit Tellerfedern gespannt, so dass sie den verzahnten Exzenterring (11) in seinem Sitz verriegeln und das zwischen dem verzahnten Exzenterring (11) und der Kulisse (01) (04) bestehende Spiel aufheben.
Während der Stößelverstellung (18) (19) setzen sich Hydraulikzylinder (5) der Schließkraft des oberen Teils der Kulisse (04) entgegen und stellen das zwischen dem verzahnten Exzenterring (11) und der Kulisse (01) (04) vorgesehene Spiel wieder her.
Der verzahnte Exzenterring (11) kann so mittels der Schnecke (09) frei in seinem Sitz drehen.
Die Schnecke (09) befindet sich im oberen Teil der Kulisse (04), um weitere Beanspruchungen während der Arbeitsphase der Presse auszuschließen, und erlaubt, axial einen Getriebemotor (08) für das Drehen der Schnecke selbst (09) anzubringen. Ihre Stellung wird über die gesamte Drehzeit des verzahnten Exzenterrings (11) mittels eines Encoders (07) gesteuert.The height adjustment of the ram for adjusting the tools ( Fig.2 ) by means of a toothed eccentric ring (11), which is housed in the gate (01) (04) and is rotated by means of a worm (09). The scenery consists of a lower part (01) and an upper part (04) are mechanically locked with screws (06); These screws are clamped with disc springs, so that they lock the toothed eccentric ring (11) in his seat and cancel the existing between the toothed eccentric ring (11) and the slide (01) (04) existing game.
During the ram adjustment (18) (19), hydraulic cylinders (5) oppose the closing force of the upper part of the link (04) and restore the clearance provided between the toothed eccentric ring (11) and the link (01) (04).
The toothed eccentric ring (11) can rotate freely in its seat by means of the worm (09).
The worm (09) is located in the upper part of the gate (04) to eliminate further stresses during the working phase of the press, and allows to mount axially a geared motor (08) for turning the worm itself (09). Their position is controlled over the entire rotation time of the toothed eccentric ring (11) by means of an encoder (07).

Am Ende der Verstellung (Abb. 3) wird der in den Hydraulikzylindern (05) enthaltene Druck abgelassen, damit die Schrauben (06) den oberen Teil der Kulisse (04) automatisch wieder schliessen können und so das Spiel mit dem verzahnten Exzenterring (11) aufheben.
Diese Vorrichtung erlaubt die Verstellung des Stößels in sehr kurzer Zeit während des Produktionsgangs zwischen den Prellschlägen, ohne dass die Produktion unterbrochen werden muss.
Um die Temperatur der Lagerbuchse (12) im verzahnten Exzenterring (11) enthalten, überwachen zu können, wurde im unteren Teil der Kulisse (01) eine Aussparung für das Anbringen einer Halterung mit einem Temperaturfühler (03) realisiert; die Halterung dient auch als mechanische Sperrung bei der Drehung des verzahnten Exzenterrings.
Die Stellung des Temperaturfühlers (03), der unter Verwendung einer Feder mit der Lagerbuchse (12) in Kontakt bleibt, ändert sich nicht im zentralen Teil der Lagerbuchse (12), weil diese konzentrisch zum Aussendurchmesser des verzahnten Exzenterrings (11) formgedreht ist.
Im unteren und oberen Teil der Kulisse (01) (04) wurden Sackrinnen ausgeführt, die in der Lage sind, durch mündende radiale Schmierlöcher (14) um das Schmierfett einzugeben. Diese sind im verzahnten Exzentrring ausgeführt und in die schraubenförmige Rinnen auf der Innenoberfläche del Lagerbuchse münden.
Diese Vorkehrung ermöglicht eine gleichmäßige Verteilung des Fetts in der Nähe des Arbeitsbereichs auf dem gesamten Drehbogen der Lagerbuchse (12).At the end of the adjustment ( Fig. 3 ), the pressure contained in the hydraulic cylinders (05) is released, so that the screws (06) can automatically close the upper part of the link (04) and thus cancel the play with the toothed eccentric ring (11).
This device allows the adjustment of the plunger in a very short time during the production cycle between the bounce, without the production must be interrupted.
In order to monitor the temperature of the bearing bush (12) contained in the toothed eccentric ring (11), in the lower part of the slide (01) has a recess for attaching a holder with a temperature sensor (03) is realized; The bracket also serves as a mechanical lock during rotation of the toothed eccentric ring.
The position of the temperature sensor (03), which remains in contact using a spring with the bearing bush (12) does not change in the central part of the bearing bush (12), because this is concentric with the outer diameter of the toothed eccentric ring (11) is rotated.
In the lower and upper part of the scenery (01) (04) were executed sack channels, which are able to enter by opening radial lubrication holes (14) to the grease. These are executed in the toothed eccentric ring and open into the helical grooves on the inner surface of the bearing bush.
This provision allows a uniform distribution of the grease near the work area on the entire pivot of the bearing bush (12).

Zeichnungendrawings

  • Abbildung 1
    zeigt einen Teilschnitt des Stößels, der Exzenterwelle und der Kulisse mit dem Stößelverstellsystem.     illustration 1
    shows a partial section of the plunger, the eccentric shaft and the gate with the ram adjustment system.
  • Abbildung 2
    zeigt die Kulisse mit dem gesamten Stößelverstellsystem.     Figure 2
    shows the scenery with the entire ram adjustment system.
  • Abbildung 3
    zeigt einen Teilschnitt der Kulisse und des Stößelverstellsystems.     Figure 3
    shows a partial section of the scenery and the ram adjustment system.

Beschreibung der in der jeweiligen Zeichnung angegebenen Bauteile

01.
Unterer Teil der Kulisse
02.
Temperaturfühlerhalterung
03.
Temperaturfühler
04.
Oberer Teil der Kulisse
05.
Hydraulikzylinder
06.
Schrauben
07.
Encoder
08.
Hydraulischer Getriebemotor
09.
Schnecke
10.
Schmierrinnen
11.
Verzahnter Exzenterring
12.
Lagerbuchse
13.
Seitliche Führungsschuhe
14.
Radialschmierlöcher
15.
Druckbolzen
16.
Führungsbuchsen
17.
Nutmuttern
18.
Oberer Teil des Stößels
19.
Unterer Teil des Stößels
20.
Exzenterwelle
Description of the components specified in the respective drawing
01.
Lower part of the scenery
02.
Temperature sensor holder
03.
temperature sensor
04th
Upper part of the scenery
05th
hydraulic cylinders
06th
screw
07th
encoder
08th
Hydraulic geared motor
09th
slug
10th
lubrication grooves
11th
Toothed eccentric ring
12th
bearing bush
13th
Lateral guide shoes
14th
Radial lubrication holes
15th
pushpin
16th
guide bushings
17th
locknuts
18th
Upper part of the pestle
19th
Lower part of the pestle
20th
eccentric shaft

Claims (9)

Mechanische Exzenterpresse mit Kulissenkinematik für die Bewegung des Stößels, gekennzeichnet durch ein Stößelverstellsystem bestehend aus einem verzahnten Exzenterring (11), der in die Kulisse eingesetzt ist und von einer Schnecke (09) mittels eines hydraulischen Getriebemotors (08) gedreht wird, wobei die Stellung der Schnecke (09) mit einem Encoder (07) kontrolliert wird.Mechanical eccentric with sliding kinematics for the movement of the plunger, characterized by a ram adjustment consisting of a toothed eccentric ring (11) which is inserted into the gate and by a screw (09) by means of a hydraulic geared motor (08) is rotated, the position of the Auger (09) is controlled by an encoder (07). Mechanische Exzenterpresse gemäß Anspruch 1, gekennzeichnet dadurch, dass die Kulisse mit dem Stößelverstellsystem in einem Stößel angebracht ist, dessen oberer Teil des Stößels (18) eingesetzt ist und einteilig mit dem unteren Teil des Stößels (19) verbunden ist mit einer Reihe von Druckbolzen (15), entsprechenden Führungsbuchsen (16) und hydraulisch verriegelnden Nutmuttern (17), um den Ein- und Ausbau des Stößels und der Kulisse zu erleichtern.A mechanical eccentric press according to claim 1, characterized in that the linkage with the ram adjustment system is mounted in a ram, the upper part of the ram (18) being inserted and integrally connected to the lower part of the ram (19) with a series of thrust pins ( 15), corresponding guide bushes (16) and hydraulically locking locknuts (17) to facilitate the installation and removal of the plunger and the scenery. Mechanische Exzenterpresse gemäß Anspruch 1, gekennzeichnet dadurch, dass aus einem unteren Teil der Kulisse(01) und einem oberen Teil der Kulisse (04) besteht, mittels federgespannten Schrauben (06) während des Pressenbetriebs verriegelt und hydraulisch während der Verstellphase mit Hydraulikzylindern (05), die im oberen Teil der Kulisse (04) untergebracht sind, entriegelt wird.Mechanical eccentric press according to claim 1, characterized in that from a lower part of the slide (01) and an upper part of the link (04) is locked by means of spring-loaded screws (06) during the press operation and hydraulically during the adjustment phase with hydraulic cylinders (05) , which is located in the upper part of the scenery (04), is unlocked. Mechanische Exzenterpresse gemäß Anspruch 1 und 3, gekennzeichnet dadurch, dass die Schnecke (09) im oberen Teil der Kulisse (04) in einem ovalförmigen Sitz untergebracht ist, um das Heben der Schnecke (09) und das Ausrasten der Zähne aus dem verzahnten Exzenterring (11) zu erlauben; damit ist der Ein- und Ausbau der Schnecke (09) ermöglicht.Mechanical eccentric press according to claim 1 and 3, characterized in that the worm (09) in the upper part of the slide (04) is housed in an oval-shaped seat to the lifting of the screw (09) and the disengagement of the teeth from the toothed eccentric ring ( 11) to allow; this enables the installation and removal of the worm (09). Mechanische Exzenterpresse gemäß Anspruch 3, gekennzeichnet dadurch , dass sich im unteren Teil der Kulisse (01) eine Temperaturfühlerhalterung (02) befindet und ein Temperaturfühler (03), der die Temperatur einer Lagerbuchse (12) misst; die Temperaturfühlerhalterung (02), die in die Durchgangsnut des verzahnten Exzenterrings (11) eingesetzt ist, wird auch verwendet als mechanische Verriegelung bei seiner Drehung.Mechanical eccentric press according to claim 3, characterized in that in the lower part of the slide (01) is a temperature sensor holder (02) and a temperature sensor (03), which measures the temperature of a bearing bush (12); the temperature sensor holder (02) inserted into the through groove of the toothed eccentric ring (11) is also used as a mechanical lock as it rotates. Mechanische Exzenterpresse gemäß Anspruch 1 und 5, gekennzeichnet dadurch, dass die Lagerbuchse (12) in der Nähe der Durchgangsnut im verzahnten Exzenterring (11) einen Kontaktbereich für den Temperaturfühler (03) aufweist; dieser Kontaktbereich ist konzentrisch zum Außendurchmesser des verzahnten Exzenterrings (11) bearbeitet ist und erforderlich ist, um die Stellung des Temperaturfühlers (03) während des Drehens der Lagerbuchse (12) konstant zu halten.Mechanical eccentric press according to claim 1 and 5, characterized in that the bearing bush (12) in the vicinity of the through-groove in the toothed eccentric ring (11) has a contact region for the temperature sensor (03); this contact area is concentric with the outer diameter of the toothed eccentric ring (11) is machined and required to keep the position of the temperature sensor (03) during rotation of the bearing bush (12) constant. Mechanische Exzenterpresse gemäß Anspruch 1, gekennzeichnet dadurch, dass der verzahnte Exzenterring (11) auf seinem Kreis eine Reihe Radialschmierlöcher (14) aufweist, um eine optimale Verteilung des Schmiermittels in der Lagerbuchse (12) zu gewährleisten.Mechanical eccentric press according to claim 1, characterized in that the toothed eccentric ring (11) has on its circumference a series of radial lubrication holes (14) to ensure optimum distribution of the lubricant in the bearing bush (12). Mechanische Exzenterpresse gemäß Anspruch 3, gekennzeichnet dadurch, dass der hydraulische Getriebemotor (08) axial zur Schnecke (09) sitzt und auf einer der beiden Seiten des oberen teils der Kulisse (04) angebracht ist.Mechanical eccentric press according to claim 3, characterized in that the hydraulic geared motor (08) sits axially to the worm (09) and is mounted on one of the two sides of the upper part of the link (04). Mechanische Exzenterpresse gemäß Anspruch 1, gekennzeichnet dadurch, dass der Encoder (07) auf einer der beiden Seiten des oberen Teils der Kulissen (04) angebracht ist, und der Encoder axial zur Schnecke (09) gelagert oder mittels einer kinematischen Kette seitlich vorverlegt ist.Mechanical eccentric press according to claim 1, characterized in that the encoder (07) on one of the two sides of the upper part of the scenes (04) is mounted, and the encoder axially to the worm (09) mounted or advanced laterally by means of a kinematic chain.
EP09405070A 2009-04-20 2009-04-20 Stroke adjustment system for mechanical press with scotch type kinematics Active EP2243571B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT09405070T ATE543587T1 (en) 2009-04-20 2009-04-20 SLIDE ADJUSTMENT SYSTEM FOR MECHANICAL PRESSES WITH SLIDE KINEMATICS
EP09405070A EP2243571B1 (en) 2009-04-20 2009-04-20 Stroke adjustment system for mechanical press with scotch type kinematics

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EP09405070A EP2243571B1 (en) 2009-04-20 2009-04-20 Stroke adjustment system for mechanical press with scotch type kinematics

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102921859A (en) * 2012-11-27 2013-02-13 孟红 Buffering mechanism of locking cylinder of precision forging machine
CN102962388A (en) * 2012-11-27 2013-03-13 孟红 Buffer structure for adjusting axial direction of worm of hammerhead of precision forging machine
DE102015222995A1 (en) * 2015-11-20 2017-05-24 Sms Group Gmbh Weggebundene press with sliding block
WO2021019017A3 (en) * 2019-07-30 2021-04-15 Kama Gmbh Oscillating machine drive
CN116274819A (en) * 2023-03-10 2023-06-23 浙江精勇精锻机械有限公司 Precision die forging machine with novel worm and electronic die height

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB105749A (en) *
GB2201109A (en) * 1987-02-19 1988-08-24 Eumuco Ag Fuer Maschinenbau Shaping machine stroke positional adjustment
US5666838A (en) * 1995-06-05 1997-09-16 Efco, Incorporated Forging press for use with automated multi-station transport system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB105749A (en) *
GB2201109A (en) * 1987-02-19 1988-08-24 Eumuco Ag Fuer Maschinenbau Shaping machine stroke positional adjustment
US5666838A (en) * 1995-06-05 1997-09-16 Efco, Incorporated Forging press for use with automated multi-station transport system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102921859A (en) * 2012-11-27 2013-02-13 孟红 Buffering mechanism of locking cylinder of precision forging machine
CN102962388A (en) * 2012-11-27 2013-03-13 孟红 Buffer structure for adjusting axial direction of worm of hammerhead of precision forging machine
CN102921859B (en) * 2012-11-27 2017-03-29 孟红 Precise forging machine locking cylinder buffer gear
DE102015222995A1 (en) * 2015-11-20 2017-05-24 Sms Group Gmbh Weggebundene press with sliding block
WO2021019017A3 (en) * 2019-07-30 2021-04-15 Kama Gmbh Oscillating machine drive
CN116274819A (en) * 2023-03-10 2023-06-23 浙江精勇精锻机械有限公司 Precision die forging machine with novel worm and electronic die height

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