DE4127181A1 - Actuating mechanism for bridge-type press - has force transmission linkage which doubles applied force - Google Patents

Actuating mechanism for bridge-type press - has force transmission linkage which doubles applied force

Info

Publication number
DE4127181A1
DE4127181A1 DE19914127181 DE4127181A DE4127181A1 DE 4127181 A1 DE4127181 A1 DE 4127181A1 DE 19914127181 DE19914127181 DE 19914127181 DE 4127181 A DE4127181 A DE 4127181A DE 4127181 A1 DE4127181 A1 DE 4127181A1
Authority
DE
Germany
Prior art keywords
force
piston
cylinder
bridge
press
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.)
Withdrawn
Application number
DE19914127181
Other languages
German (de)
Inventor
Karl Guenschel
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.)
SCHUHMASCHINENBAU COMPART GmbH
Original Assignee
SCHUHMASCHINENBAU COMPART GmbH
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 SCHUHMASCHINENBAU COMPART GmbH filed Critical SCHUHMASCHINENBAU COMPART GmbH
Priority to DE19914127181 priority Critical patent/DE4127181A1/en
Publication of DE4127181A1 publication Critical patent/DE4127181A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/007Means for maintaining the press table, the press platen or the press ram against tilting or deflection

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

The bridge type press has the press beam (2) actuated by a hydraulic cylinder (3) which is fastened to the mid-point of the beam. The piston (18) which operates in the cylinder, has a piston rod (5) which has a fork (6) fastened to its lower end. A link (8) pivoted between the prongs of the fork has a lever (4) pivoted to each end. Each lever (4) pivots on a bearing (12) and has its other end pivoted to a rod (14,15) which is pivoted to the press beam (2). When hydraulic pressure is admitted to the cylinder (3) it acts directly on the cylinder end wall and on the piston (18). The force on the piston is transmitted through the linkage (8,4,14,15) to the press beam so that the total force on the beam is twice that exerted on the cylinder end wall. USE/ADVANTAGE - Stamping press with doubled actuating force.

Description

Die Erfindung bezieht sich auf eine Brückenstanze, deren Druckbalken durch ein mechanisches Hebelsystem hydraulisch bewegt wird.The invention relates to a bridge punch, their pressure bars by a mechanical lever system is moved hydraulically.

Bekannt sind bei hydraulisch angetriebenen Pressen bzw. Stanzen, z. B. durch die OS 19 64 133, OS 20 15 342, OS 30 11 281, die trotz aufwendiger Gleichlaufsteuerungen für den parallelen Antrieb mit Schutzkolben nur eine ungenügende Parallelität zwischen Stanzfläche und Gegenfläche erzielen.Are known in hydraulically driven presses or Punching, e.g. B. by OS 19 64 133, OS 20 15 342, OS 30 11 281, which despite complex synchronization controls for the parallel drive with protective piston only insufficient parallelism between the punching surface and Achieve counter surface.

Das weniger aufwendige Erzielen der besseren Parallelität zwischen Druckbalken und Gegenbalken bei der Bewegung nach oben wird erfindungsgemäß dadurch gelöst, daß durch ein mechanisches Hebelsystem und die Einwirkung von fünf Druckkräften auf den Druckbalken eine Parallelführung bei unterschiedlichen Stanzkräften und Kraftangriffspunkten erreicht wird.The less complex achievement of better parallelism between pressure bar and counter bar during movement is solved according to the invention in that through a mechanical lever system and the action parallel guidance of five pressure forces on the pressure beam with different punching forces and force application points is achieved.

Die Erfindung soll an nachfolgendem Ausführungsbeispiel erläutert werden. In den zugehörigen Zeichnungen zeigen:The invention is based on the following embodiment are explained. In the accompanying drawings:

Fig. 1 die Vorderansicht der Brückenstanze im Teilschnitt, Fig. 1 is a front view of the bridge punch in partial section,

Fig. 2 eine vergrößerte Schnittdarstellung eines im Druckbalken gelagerten Exzenters, Fig. 2 is an enlarged sectional view of a pressure bar mounted in the eccentric,

Fig. 3 eine Seitenansicht nach Fig. 1 im Teilschnitt, Fig. 3 is a side view of FIG. 1 in partial section,

Fig. 4 eine Draufsicht nach Fig. 1 im Schnitt. Fig. 4 is a plan view of FIG. 1 in section.

In der Fig. 1 ist die Anordnung der aus Druckbalken, Schubkolbenbetrieb, Lagergabel, Ausgleichskoppel, Hebel, Schubstangen usw. bestehenden erfindungsgemäßen Vorrichtung gezeigt. In FIG. 1, the arrangement of the so consisting of the pressure beam, thrust piston operating, storage fork, compensation coupling, levers, thrust rods device of the invention is shown.

Für den im Gestell 1 geführten Druckbalken 2 ist ein hydraulischer Schubkolbentrieb 3 vorgesehen, der so im Druckbalken 2 gelagert ist, daß die Anlenkung des Schubkolbentriebes 3 an die Hebel 4 für die Krafteinleitung eine Geradführung darstellt.For the pressure beam 2 guided in the frame 1 , a hydraulic thrust piston drive 3 is provided, which is mounted in the pressure beam 2 in such a way that the articulation of the thrust piston drive 3 to the lever 4 for the introduction of force represents a straight line.

Die Kolbenstange 5 ist mit einer Lagergabel 6 versehen, auf deren Bolzen 7 die zur Kraftübertragung auf die Hebel 4 erforderliche Ausgleichkoppel 8 gelagert ist. Eine Verbindung der Ausgleichskoppel 8 und den Hebeln 4 erfolgt durch die Bolzen 9.The piston rod 5 is provided with a bearing fork 6 , on the bolt 7 of which the compensation coupling 8 required for power transmission to the lever 4 is mounted. The compensating coupling 8 and the levers 4 are connected by the bolts 9 .

Die im Gestell 1 fest angeordneten Lager 10; 11 halten die Achsen 12, auf denen die Hebel 4 drehbar gelagert sind, an deren Enden mittels Bolzen 13 vier Schubstangen 14; 15 angelenkt werden, die im Druckbalken 2 gelagert sind.The fixedly arranged in the frame 1 bearing 10; 11 hold the axles 12 on which the lever 4 are rotatably supported at the ends by means of bolts 13, four push rods 14; 15 are articulated, which are mounted in the pressure beam 2 .

Die oberen Enden der Schubstangen 14; 15 sind mit in Fig. 2 dargestellten Exzentern 16 versehen, mit denen die Parallelität zwischen Druckbalken 2 und Gegenbalken 17 durch eine einmalige Einstellung hergestellt wird und beim Arbeitshub des Druckbalkens 2 immer exakt eingehalten wird.The upper ends of the push rods 14 ; 15 are provided with eccentrics 16 shown in FIG. 2, with which the parallelism between the pressure beam 2 and counter beam 17 is established by a single adjustment and is always exactly maintained during the working stroke of the pressure beam 2 .

Beim Auslösen des Arbeitshubes wird der Schubkolbentrieb 3 oberhalb des Kolbens 18 hydraulisch mit Druck beaufschlagt, die Kolbenstange 5 bewegt sich nach unten und überträgt die Kolbenkraft über das Hebelsystem auf den Druckbalken 2.When the working stroke is triggered, the thrust piston drive 3 is hydraulically pressurized above the piston 18 , the piston rod 5 moves downward and transmits the piston force to the pressure beam 2 via the lever system.

Die Kolbengegenkraft wirkt direkt auf den Druckbalken 2 und führt somit zu einer Verdopplung der Antriebskraft.The piston counterforce acts directly on the pressure beam 2 and thus leads to a doubling of the driving force.

Wirken während des Stanzhubes auf den Druckbalken 2 unterschiedliche Stanzkräfte durch z. B. ungleichmäßige Verteilung der Schnittflächen, bleibt aufgrund des für die Krafteinteilung vom Schubkolbentrieb 3 wirkenden geschlossenen Hebelsystems die Parallelität zwischen Druckbalken 2 und Gegenbalken 17 gewährleistet.Act during the punch stroke on the pressure beam 2 different punching forces by z. B. uneven distribution of the cut surfaces, the parallelism between the pressure beam 2 and counter beam 17 remains ensured due to the lever system acting for the force distribution from the thrust piston drive 3 .

Claims (4)

1. Brückenstanze mit elektrohydraulischem Antrieb für Stanzhubbewegung dadurch gekennzeichnet, daß ein Schubkolbenantrieb auf ein im Gestell gelagertes Hebelsystem so einwirkt, daß die Kolbenkraft über das Hebelsystem so auf den Druckbalken und die Kolbengegenkraft direkt auf den Druckbalken zu einer Verdoppelung der Antriebskraft führen.1. Bridge punch with electrohydraulic drive for punch stroke movement, characterized in that a thrust piston drive acts on a lever system mounted in the frame so that the piston force on the lever system on the pressure bar and the piston counterforce directly on the pressure bar lead to a doubling of the driving force. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Krafteinleitung vom Schubkolbentrieb in das Hebelsystem über ein Geradführungssystem erfolgt, sodaß der Koppelanlenkpunkt sich auf einer Geraden bewegt.2. Device according to claim 1, characterized in that the introduction of force from the thrust piston drive into the Lever system via a straight guide system, so that the coupling articulation point is on a straight line emotional. 3. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das Hebelsystem als geschlossenes System wirkt, indem die Krafteinleitung vom Schubkolbentrieb über eine Ausgleichskoppel erfolgt.3. Device according to claim 1 and 2, characterized in that that the lever system as a closed System works by introducing force from the thrust piston drive via a compensating coupling. 4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Grundeinstellung der Parallelität zwischen Druckbalken und Gegenbalken durch eine Einstellung von Exzentern gewährleistet wird.4. The device according to claim 1, characterized in that the basic attitude of parallelism between Pressure bar and counter bar by one setting is guaranteed by eccentrics.
DE19914127181 1991-08-16 1991-08-16 Actuating mechanism for bridge-type press - has force transmission linkage which doubles applied force Withdrawn DE4127181A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914127181 DE4127181A1 (en) 1991-08-16 1991-08-16 Actuating mechanism for bridge-type press - has force transmission linkage which doubles applied force

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914127181 DE4127181A1 (en) 1991-08-16 1991-08-16 Actuating mechanism for bridge-type press - has force transmission linkage which doubles applied force

Publications (1)

Publication Number Publication Date
DE4127181A1 true DE4127181A1 (en) 1992-03-12

Family

ID=6438486

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914127181 Withdrawn DE4127181A1 (en) 1991-08-16 1991-08-16 Actuating mechanism for bridge-type press - has force transmission linkage which doubles applied force

Country Status (1)

Country Link
DE (1) DE4127181A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5746123A (en) * 1995-01-21 1998-05-05 Bruderer Ag Punch press having an elongate space for mounting its tools
CN102582098A (en) * 2012-03-01 2012-07-18 苏州大学 Dual-station pneumatic stamping machine
CN105058475A (en) * 2015-09-05 2015-11-18 衢州台威精工机械有限公司 Beam lifting mechanism for high-speed beam type hydraulic cutting machine
CN105234993A (en) * 2015-09-05 2016-01-13 衢州台威精工机械有限公司 High-speed cross beam type hydraulic cutter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738748A (en) * 1952-01-29 1956-03-20 May Pressenbau G M B H Fa Toggle lever operating arrangement for a press
DE1452560A1 (en) * 1962-05-14 1969-10-09 Vittorio Bianchi Hydraulically controlled parallel guide drive for a tool carrier of large length in machine tools
DE2925416C2 (en) * 1979-06-23 1983-02-24 Werner Ing.(Grad.) 6460 Gelnhausen Leinhaas Knee lever sheet metal cutting press
DE3703413A1 (en) * 1987-02-05 1988-08-18 Schuler Gmbh L Stroke adjusting mechanism for stamping press - includes eccentric bush in joint in toggle mechanism, rotated to adjust stroke

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738748A (en) * 1952-01-29 1956-03-20 May Pressenbau G M B H Fa Toggle lever operating arrangement for a press
DE1452560A1 (en) * 1962-05-14 1969-10-09 Vittorio Bianchi Hydraulically controlled parallel guide drive for a tool carrier of large length in machine tools
DE2925416C2 (en) * 1979-06-23 1983-02-24 Werner Ing.(Grad.) 6460 Gelnhausen Leinhaas Knee lever sheet metal cutting press
DE3703413A1 (en) * 1987-02-05 1988-08-18 Schuler Gmbh L Stroke adjusting mechanism for stamping press - includes eccentric bush in joint in toggle mechanism, rotated to adjust stroke

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5746123A (en) * 1995-01-21 1998-05-05 Bruderer Ag Punch press having an elongate space for mounting its tools
CN102582098A (en) * 2012-03-01 2012-07-18 苏州大学 Dual-station pneumatic stamping machine
CN105058475A (en) * 2015-09-05 2015-11-18 衢州台威精工机械有限公司 Beam lifting mechanism for high-speed beam type hydraulic cutting machine
CN105234993A (en) * 2015-09-05 2016-01-13 衢州台威精工机械有限公司 High-speed cross beam type hydraulic cutter

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OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8105 Search report available
8122 Nonbinding interest in granting licenses declared
8139 Disposal/non-payment of the annual fee