EP0545240B1 - Clamping device for clinch joining - Google Patents
Clamping device for clinch joining Download PDFInfo
- Publication number
- EP0545240B1 EP0545240B1 EP92120043A EP92120043A EP0545240B1 EP 0545240 B1 EP0545240 B1 EP 0545240B1 EP 92120043 A EP92120043 A EP 92120043A EP 92120043 A EP92120043 A EP 92120043A EP 0545240 B1 EP0545240 B1 EP 0545240B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- lever mechanism
- die
- header
- joining
- 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 - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
- B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
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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
Definitions
- the invention relates to a pressure-joining device for the permanently firm joining of two sheets clamped together during the printing process according to the preamble of patent claim 1.
- Such a pressure joining device is known, for example, from DE-U-9 015 738 and also from DE-A-38 22 377.
- pressure joining for permanently connecting two sheets, reference is made to EP-A-0 215 449 and 0 284 902.
- the parts to be connected had to be inserted and clamped in a clamping device.
- the device then drove to the so-called stapling station, where the parts were first stapled together in their position.
- the actual connection of the parts was carried out in a second station.
- Attempts to perform the tensioning and press fitting in the same device have failed for several reasons.
- a considerably higher force is required for pressure joining than for clamping, and on the other hand there was tool damage if, for example, no parts were inserted into the device and the combined tool was actuated.
- the invention has for its object to provide a pressure-joining device which, without anything having to be moved or adjusted, makes it possible to carry out both processes, namely clamping together the two sheets or plates and joining by pressure joining in the same device, and this in conjunction with the proviso that a greater pressure can be exerted during pressure joining than during tensioning.
- the two plates to be connected are first in the desired position relative to one another fixed by clamping, after which the joining stroke takes place on the clamped sheets, which will be explained in more detail.
- the tensioning device according to the invention can also be used for spot welds, with only the die and the male punch being designed as spot welding electrodes.
- the tensioning mechanism is preferably designed in the form of a toggle lever mechanism known per se.
- the pressure lever mechanism is arranged behind and above the toggle lever mechanism with respect to the dies / male arrangement.
- the drives can also be electric, actuation cylinders with pistons which can be acted upon on both sides for the feed and the retraction are preferred for the drives, as is customary in the case of tensioning devices in the majority of cases.
- the drives are designed as actuating cylinders
- at least the cylinder forming the drive is advantageously designed as a flat cylinder and its flat side is assigned to the other cylinder.
- the flat cylinder (for example, with an oval cross-section) serves as an actuating cylinder for the toggle lever clamping mechanism, which, as mentioned, only has to exert the necessary clamping force for clamping the two sheets together.
- the toggle lever mechanism is advantageously designed and designed such that it assumes an over-center locking position when clamped, which requires no further explanation, since it is well known.
- an advantageous development of the device according to the invention is that the pressure arm of the pressure lever mechanism on the side of the toggle lever clamping mechanism is provided with an arcuate recess and this over the end the actuator of the toggle lever mechanism is arranged.
- the recess lies on the end of the actuator of the toggle lever clamping mechanism and presses it out of the dead center lock when the drive is depressurized, i.e. the return stroke for the toggle lever mechanism can be done with less pressure than usual respectively.
- pressure arm of the pressure lever mechanism is formed from two articulated members and a tension position stop is arranged in the common joint.
- a toggle lever mechanism 6 which can be actuated with the first drive 3, is arranged, the male punch 2 of which contains and can be pivoted on the head piece 5 End member 7 is pivoted against the die 1 arranged stationary on the head piece 5.
- the toggle lever mechanism 6 is assigned a pressure lever mechanism 8 which can be actuated by the second drive 4, the pressure arm 9 of which is articulated to the end member 7 via a rocker arm 10 designed as a pressure member and pivotably mounted on the end member 7.
- the opening position of the device is partially indicated by dash-dotted lines in FIG. 2.
- the two sheets (not shown) to be connected are placed on the die 1 or the die holder 17.
- the drive 4 ventilated
- the drive 3 is pressurized, the movement of the actuator 14 (piston rod) being converted via an intermediate member 6 'into a pivoting movement of the end member 7 towards the die holder 17, ie the two sheets become immovable between the end member 7 and the die holder 17 clamped.
- the end member 7 (tension arm) pivots about the axis 7 ', which sits in the head piece 5.
- the pressure lever mechanism 8 consisting of the actuator 15 (piston rod of the drive 4) and the pressure arm 9, is in the dead center locked or tensioned position of the end member 7 dragged along.
- the actuating cylinder 4 ' is pressurized, the lifting movement of the actuator 15 via pressure arm 9 being converted into a tilting movement (from point A to B) of the rocker arm 10 pivotable about the axis 10' on the end member 7. With this tilting movement, however, pressure is exerted on the male die 2 with a pressure roller 18, which then connects the two metal sheets to one another by applying pressure in the die 1.
- the actuating cylinder 4 'or its piston is acted on from the other side, as a result of which the male die 2 is pulled out of the joint.
- the pressure arm 9 meets with its arcuate recess 13 on the intermediate member 6 'or the end of the actuator 14, whereby the dead center locking of the toggle lever mechanism 6 or the end member 7 is released.
- the pressure lever mechanism 8 drags, because coupled via the rocker arm 10, the toggle lever mechanism SM or 6 simply moves into the open position, in which the connected sheets can then be removed.
- a driver piece 11 on the end member 7 is assigned on the actuating side to the male die 2 which is interchangeably mounted in the end member 7, and the rocker arm 10 is provided with a lifting extension 12 which can be brought into operative connection with the driver member 11.
- the driver piece 11 is lifted from the lifting extension 12 and the male punch 2 is thus pulled out of the pressure joining point.
- an adjustable joining stroke limiting stop 16 is provided on the head piece 5 axially above the actuator 15.
- a suitably dimensioned square fitting 22 is also advantageously arranged between the articular extension 7 ′′ of the end member 7 and the die holder 17 or the cantilever piece 17 ′ carrying it.
- the dimensioning of the fitting 22 and the joint stroke limit stop 16 must of course be precisely coordinated. In addition, these elements ensure that no damage to the male and female dies can occur if the sheets are not inserted.
- the die 1 itself is interchangeably arranged in a die holder 17 which is also interchangeably arranged on the head piece 5, which in turn is adjustable in height on the head piece 5 in order to be able to take different sheet thicknesses into account.
- the die holder 17 sits on a cantilever 17 'which is fixed to the head piece 5 by means of screws 19.
- a bottom-side adjusting screw 20 ensures sufficient fixation against the joining pressure that becomes effective from the opposite direction.
- appropriately arranged end position sensors 18 for example microswitches
- the cable guides of which lead together via a cable connection 21 to control the pressurization of the drives 3, 4.
- the design of the hold-down device 7 in the area of the male part 2 is illustrated in FIG. 2A, that is to say the male die is provided with a wiper 26 loaded by plate springs 25, which wipes off the joined metal sheets from the male part 2 or in the first one when the device is opened Opening phase triggers.
- FIGS. 4, 5 differs from the one described above only by a different design of the pressure arm 9, namely in that it is formed from two articulated links 9 ', 9' ' and a clamping position stop 24 is arranged in the common joint 23. 4A-D and Fig. 5E-H, corresponding elements are provided with corresponding reference numerals.
- FIG. 4A-D show the closing process of the pressure lever mechanism after the end member 7 has been brought into position by the previously actuated drive 3.
- an end position stop 24 must be provided in the common joint 23, as indicated, since otherwise no force in the rocker arm 10 could be initiated.
- 5E-H illustrate the opening process, starting from the position shown in FIG. 4D to the position shown in FIG. 5H. This design results in considerably shorter distances for the stroke paths of the pressure lever mechanism compared to FIG. 2.
Abstract
Description
Die Erfindung betrifft eine Druckfügevorrichtung für das bleibend feste Zusammenfügen zweier während des Druckfügens zusammengespannter Bleche gemäß Oberbegriff des Patentanspruches 1.The invention relates to a pressure-joining device for the permanently firm joining of two sheets clamped together during the printing process according to the preamble of
Eine solche Druckfügevorrichtung ist bspw. nach der DE-U-9 015 738 bekannt und auch nach der DE-A-38 22 377. Bezüglich des sogenannten Druckfügens zum bleibend festen Verbinden zweier Bleche wird auf die EP-A-0 215 449 und O 284 902 verwiesen. Bisher mußten die zu verbindenden Teile in eine Spannvorrichtung eingelegt und gespannt werden. Danach fuhr die Vorrichtung in die sogenannte Heftstation, wo die Teile zunächst miteinander in ihrer Lage geheftet wurden. Danach wurde in einer zweiten Station das eigentliche Verbinden der Teile miteinander vorgenommen. Versuche, das Spannen und das Druckfügen in der gleichen Vorrichtung durchzuführen, schlugen aus verschiedenen Gründen fehl. Zum einen wird zum Druckfügen selbst eine wesentlich höhere Kraft benötigt als zum Spannen, und zum anderen gab es Werkzeugbeschädigungen, wenn beispielsweise keine Teile in die Vorrichtung eingelegt waren und das kombinierte Werkzeug betätigt wurde.Such a pressure joining device is known, for example, from DE-U-9 015 738 and also from DE-A-38 22 377. With regard to the so-called pressure joining for permanently connecting two sheets, reference is made to EP-A-0 215 449 and 0 284 902. Previously, the parts to be connected had to be inserted and clamped in a clamping device. The device then drove to the so-called stapling station, where the parts were first stapled together in their position. Then the actual connection of the parts was carried out in a second station. Attempts to perform the tensioning and press fitting in the same device have failed for several reasons. On the one hand, a considerably higher force is required for pressure joining than for clamping, and on the other hand there was tool damage if, for example, no parts were inserted into the device and the combined tool was actuated.
Der Erfindung liegt die Aufgabe zugrunde, eine Druckfügevorrichtung zu schaffen, die es, ohne daß irgendetwas versetzt oder verstellt werden muß, ermöglicht, beide Vorgänge, nämlich Zusammenspannen der beiden Bleche bzw. Platten und Verbinden durch Druckfügen in der gleichen Vorrichtung durchzuführen und dies verbunden mit der Maßgabe, daß beim Druckfügen ein größerer Druck ausgeübt werden kann als beim Spannen.The invention has for its object to provide a pressure-joining device which, without anything having to be moved or adjusted, makes it possible to carry out both processes, namely clamping together the two sheets or plates and joining by pressure joining in the same device, and this in conjunction with the proviso that a greater pressure can be exerted during pressure joining than during tensioning.
Diese Aufgabe ist mit einer Druckfügevorrichtung nach der Erfindung mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Weiterbildungen ergeben sich nach den Unteransprüchen.This object is achieved with a pressure joining device according to the invention with the features of
Mit dieser erfindungsgemäßen Vorrichtung werden also zunächst die beiden zu verbindenden Platten in der gewünschten Lage zueinander durch Zusammenspannen fixiert, wonach der Fügehub an den zusammengespannten Blechen erfolgt, was noch näher erläutert wird. Dabei muß, wie gesagt und gefordert, keinerlei Veränderung an der Vorrichtung vorgenommen werden. Da Punktverschweißungen ebenfalls eine entsprechende Druckaufbringung an der Schweißstelle verlangen, ist im übrigen die erfindungsgemäße Spannvorrichtung auch für Punktverschweißungen verwendbar, wobei lediglich die Matrize und der Patrizenstempel als Punktschweißelektroden auszubilden sind. Vorzugsweise wird die Spannmechanik in Form einer an sich bekannten Kniehebelmechanik ausgebildet.With this device according to the invention, the two plates to be connected are first in the desired position relative to one another fixed by clamping, after which the joining stroke takes place on the clamped sheets, which will be explained in more detail. As said and demanded, no changes need to be made to the device. Since spot welds also require a corresponding application of pressure at the welding point, the tensioning device according to the invention can also be used for spot welds, with only the die and the male punch being designed as spot welding electrodes. The tensioning mechanism is preferably designed in the form of a toggle lever mechanism known per se.
Um die Druckfügevorrichtung so kompakt und raumsparend wie möglich auszubilden und die Einspannseite der Vorrichtung freizuhalten, ist vorgesehen, daß die Druckhebelmechanik in bezug auf die Matrizen/Patrizenanordnung hinter und über der Kniehebelmechanik angeordnet ist.In order to make the pressure joining device as compact and space-saving as possible and to keep the clamping side of the device free, it is provided that the pressure lever mechanism is arranged behind and above the toggle lever mechanism with respect to the dies / male arrangement.
Obgleich die Antriebe auch elektrische sein können, kommen, wie bei Spannvorrichtungen in der Mehrzahl der Fälle üblich, bevorzugt für die Antriebe Betätigungszylinder mit beidseitig für den Vorschub und den Rückzug beaufschlagbaren Kolben in Frage. In diesem Falle, d.h., bei Ausbildung der Antriebe als Betätigungszylinder, ist vorteilhaft mindestens der den einen Antrieb bildende Zylinder als Flachzylinder ausgebildet und dieser mit seiner Flachseite dem anderen Zylinder zugeordnet. Dabei dient der Flachzylinder (bspw. mit ovalem Querschnitt) als Betätigungszylinder für die Kniehebelspannmechanik, die, wie erwähnt, nur die erforderliche Spannkraft für das Zusammenspannen der beiden Bleche aufzubringen hat. Die Kniehebelmechanik ist vorteilhaft so ausgelegt und ausgebildet, daß diese bei Klemmspannung in sich eine Übertotpunktverriegelungsstellung einnimmt, was keiner näheren Erläuterung bedarf, da hinlänglich bekannt. Was nun das Herausfahren aus dieser Übertotpunktstellung betrifft, so besteht eine vorteilhafte Weiterbildung der erfindungsgemäßen Vorrichtung darin, daß der Druckarm der Druckhebelmechanik auf der Seite der Kniehebelspannmechanik mit einer bogenförmigen Ausnehmung versehen und diese über dem Ende des Stellgliedes der Kniehebelspannmechanik angeordnet ist. Beim Öffnen der ganzen Vorrichtung nach erfolgtem Druckfügen bzw. Punktschweißen legt sich dadurch die Ausnehmung auf das Ende des Stellgliedes der Kniehebelspannmechanik auf und drückt diese bei drucklos gemachtem Antrieb aus der Übertotpunktsverriegelung heraus, d.h., der Rückstellhub für die Kniehebelmechanik kann mit geringer als sonst üblicher Druckbeaufschlagung erfolgen.Although the drives can also be electric, actuation cylinders with pistons which can be acted upon on both sides for the feed and the retraction are preferred for the drives, as is customary in the case of tensioning devices in the majority of cases. In this case, ie when the drives are designed as actuating cylinders, at least the cylinder forming the drive is advantageously designed as a flat cylinder and its flat side is assigned to the other cylinder. The flat cylinder (for example, with an oval cross-section) serves as an actuating cylinder for the toggle lever clamping mechanism, which, as mentioned, only has to exert the necessary clamping force for clamping the two sheets together. The toggle lever mechanism is advantageously designed and designed such that it assumes an over-center locking position when clamped, which requires no further explanation, since it is well known. As far as moving out of this dead center position is, an advantageous development of the device according to the invention is that the pressure arm of the pressure lever mechanism on the side of the toggle lever clamping mechanism is provided with an arcuate recess and this over the end the actuator of the toggle lever mechanism is arranged. When the entire device is opened after pressure or spot welding has been carried out, the recess lies on the end of the actuator of the toggle lever clamping mechanism and presses it out of the dead center lock when the drive is depressurized, i.e. the return stroke for the toggle lever mechanism can be done with less pressure than usual respectively.
Eine noch kompaktere Ausbildung kann vorteilhaft dadurch erreicht werden, daß der Druckarm der Druckhebelmechanik aus zwei gelenkig miteinander verbundenen Gliedern gebildet und im gemeinsamen Gelenk ein Spannstellungsanschlag angeordnet ist.An even more compact design can advantageously be achieved in that the pressure arm of the pressure lever mechanism is formed from two articulated members and a tension position stop is arranged in the common joint.
Die erfindungsgemäße Druckfügevorrichtung und weitere vorteilhafte Ausführungsformen werden nachfolgend anhand der zeichnerischen Darstellung eines Ausführungsbeispieles näher erläutert.The pressure joining device according to the invention and further advantageous embodiments are explained in more detail below with reference to the drawing of an exemplary embodiment.
Es zeigt
- Fig. 1
- eine Seitenansicht der Vorrichtung,
- Fig. 2
- teilweise im Schnitt und ebenfalls in Seitenansicht die Vorrichtung gemäß Fig. 1;
- Fig. 2A
- im Schnitt eine Einzelheit am Niderhalter;
- Fig. 3
- die Vorrichtung gemäß Fig. 1 im Schnitt längs Linie III-III in Fig. 2;
- Fig.4A-D
- eine andere Ausführungsform der Vorrichtung in verschiedenen Stellungen bis zum Durckfügevorgang und
- Fig.5E-H
- die Ausführungsform nach Fig. 4 in verschiedenen Stellungen bis zum völligen Öffnen.
- Fig. 1
- a side view of the device,
- Fig. 2
- partly in section and also in side view of the device of FIG. 1;
- Figure 2A
- on average a detail on the holder;
- Fig. 3
- the device of Figure 1 in section along line III-III in Fig. 2.
- Fig. 4A-D
- another embodiment of the device in different positions up to the push-through process and
- Fig.5E-H
- the embodiment of FIG. 4 in different positions until fully open.
Wie insbesondere aus Fig. 2 ersichtlich, ist in einem mit zwei separaten (und nacheinander separat betätigbaren) Antrieben 3, 4 versehenen Kopfstück 5 des Ausführungsbeispieles eine mit dem ersten Antrieb 3 betätigbare Kniehebelmechanik 6 angeordnet, deren den Patrizenstempel 2 enthaltendes und am Kopfstück 5 schwenkbar gelagertes Endglied 7 gegen die am Kopfstück 5 stationär angeordnete Matrize 1 schwenkbar ist. Der Kniehebelmechanik 6 ist eine mit dem zweiten Antrieb 4 betätigbare Druckhebelmechanik 8 zugeordnet, deren Druckarm 9 über einen als Druckglied ausgebildeten und am Endglied 7 schwenkbar gelagerten Kipphebel 10 mit dem Endglied 7 gelenkig verbunden ist.As can be seen in particular from FIG. 2, in a
Die Öffnungsstellung der Vorrichtung ist dabei in Fig. 2 zum Teil strichpunktiert angedeutet. In dieser Stellung werden die beiden zu verbindenden Bleche (nicht dargestellt) auf die Matrize 1 bzw. den Matrizenhalter 17 aufgelegt. Nun wird zunächst bei belüftetem Antrieb 4 der Antrieb 3 mit Druck beaufschlagt, wobei die Bewegung des Stellgliedes 14 (Kolbenstange) über ein Zwischenglied 6' in eine Schwenkbewegung des Endgliedes 7 auf den Matrizenhalter 17 zu umgesetzt wird, d.h., die beiden Bleche werden unverrückbar zwischen dem Endglied 7 und dem Matrizenhalter 17 eingespannt. Das Endglied 7 (Spannarm) schwenkt dabei um die Achse 7', die im Kopfstück 5 sitzt. Da das Endglied 7 über den Kipphebel 10 mit dem Druckarm 9, wie dargestellt, verbunden ist, wird die Druckhebelmechanik 8, bestehend aus dem Stellglied 15 (Kolbenstange des Antriebs 4) und dem Druckarm 9 in die übertotpunktsverriegelte Schließ- bzw. Spannstellung des Endgliedes 7 mitgeschleppt. Nunmehr wird der Betätigungszylinder 4' mit Druck beaufschlagt, wobei die Hubbewegung des Stellgliedes 15 via Druckarm 9 in eine Kippbewegung (vom Punkt A nach B) des um die Achse 10' am Endglied 7 schwenkbaren Kipphebels 10 umgesetzt wird. Mit dieser Kippbewegung wird aber mit einer Druckrolle 18 Druck auf den Patrizenstempel 2 ausgeübt, der die beiden Bleche dann durch Druckfügung in der Matrize 1 miteinander verbindet.The opening position of the device is partially indicated by dash-dotted lines in FIG. 2. In this position, the two sheets (not shown) to be connected are placed on the
Zum Öffnen der Vorrichtung wird der Betätigungszylinder 4' bzw. dessen Kolben von der anderen Seite beaufschlagt, wodurch der Patrizenstempel 2 aus der Fügestelle herausgezogen wird. Der Druckarm 9 trifft dabei mit seiner bogenförmigen Ausnehmung 13 auf das Zwischenglied 6' bzw. das Ende des Stellgliedes 14, wodurch die Übertotpunktsverriegelung der Kniehebelstellmechanik 6 bzw. des Endgliedes 7 gelöst wird. Entsprechend gesteuert ist beim Öffnen der Betätigungszylinder 3' druckfrei gestellt, und die Druckhebelmechanik 8 schleppt, da über den Kipphebel 10 gekoppelt, die Kniehebelmechanik SM bzw. 6 einfach mit in die Öffnungsstellung, bei der dann die verbundenen Bleche entnommen werden können.To open the device, the actuating cylinder 4 'or its piston is acted on from the other side, as a result of which the
Beim dargestellten Ausführungsbeispiel ist dem im Endglied 7 auswechselbar gelagerten Patrizenstempel 2 betätigungsseitig ein Mitnehmerstück 11 am Endglied 7 zugeordnet, und der Kipphebel 10 ist mit einem mit dem Mitnehmerstück 11 in Wirkverbindung bringbarer Hubfortsatz 12 versehen. Damit wird beim Rückstellhub des Betätigungszylinders 4' und der damit beginnenden Kippbewegung des Kipphebels 10 im Uhrzeigersinn um die Achse 10' das Mitnehmerstück 11 vom Hubfortsatz 12 angehoben und damit der Patrizenstempel 2 aus der Druckfügestelle herausgezogen.In the exemplary embodiment shown, a
Für die Einstellung des Fügehubes ist am Kopfstück 5 axial über dem Stellglied 15 ein einstellbarer Fügehubbegrenzungsanschlag 16 vorgesehen. Zum Einstellen bzgl. der zu verarbeitenden Blechstärken ist außerdem vorteilhaft ein entsprechend bemessenes Vierkantpaßstück 22 zwischen dem Gelenkfortsatz 7'' des Endgliedes 7 und dem Matrizenhalter 17 bzw. dem diesen tragenden Kragstück 17' angeordnet. Die Bemessung des Paßstückes 22 und der Fügehubbegrenzungsanschlag 16 müssen natürlich genau aufeinander abgestimmt sein. Außerdem wird mit diesen Elementen dafür gesorgt, daß bei ggf. nicht eingelegten Blechen keine Beschädigungen an Patrize und Matrize auftreten können.For the adjustment of the joining stroke, an adjustable joining
Die Matrize 1 selbst ist auswechselbar in einem ebenfalls auswechselbar am Kopfstück 5 angeordneten Matrizenhalter 17 angeordnet, der seinerseits höheneinstellbar am Kopfstück 5 sitzt, um damit unterschiedlichen Blechstärken Rechnung tragen zu können. Für diese Einstellbarkeit sitzt der Matrizenhalter 17 auf einem Kragstück 17', das mittels Schrauben 19 am Kopfstück 5 fixiert wird. Eine bodenseitige Stellschraube 20 sorgt dabei für eine ausreichende Fixierung gegen den aus entgegengesetzter Richtung wirksam werdenden Fügedruck. Für die notwendigen Folgesteuerungen der Antriebe 3, 4 sorgen, wie in Fig. 1 dargestellt, entsprechend angeordnete Endstellungssensoren 18 (bspw. Mikroschalter), deren Kabelführungen gemeinsam über einen Kabelanschluß 21 zur Steuerung der Druckbeaufschlagung der Antriebe 3, 4 führen. Die Ausbildung des Niederhalters 7 im Bereich der Patrize 2 ist in Fig. 2A verdeutlicht, d.h., der Patrizenstempel ist mit einem durch Tellerfedern 25 belasteten Abstreifer 26 versehen, der beim Öffnen der Vorrichtung die gefügten Bleche von der Patrize 2 abstreift bzw. in der ersten Öffnungsphase löst.The
Die bevorzugte Ausführungsform, da noch kompakter und weniger Raum beanspruchend, gemäß Fig. 4, 5 unterscheidet sich von der vorbeschriebenen lediglich durch eine andere Ausbildung des Druckarmes 9, nämlich dahingehend, daß dieser aus zwei gelenkig miteinander verbundenen Gliedern 9', 9'' gebildet und im gemeinsamen Gelenk 23 ein Spannstellungsanschlag 24 angeordnet ist. In den Fig. 4A-D und Fig.5E-H sind entsprechende Elemente mit entsprechenden Bezugszeichen versehen.The preferred embodiment, since it is even more compact and takes up less space, according to FIGS. 4, 5 differs from the one described above only by a different design of the
Fig. 4A-D zeigen den Schließvorgang der Druckhebelmechanik, nachdem das Endglied 7 vom vorher betätigten Antrieb 3 in Stellung gebracht wurde. Um die Fügekraft am hier aus den zwei Gliedern 9', 9'' gebildeten Druckarm 9 wirksam werden zu lassen (Fig. 4D), muß im gemeinsamen Gelenk 23, wie angedeutet, ein Endstellungsanschlag 24 vorgesehen sein, da sonst keine Kraft in den Kipphebel 10 eingeleitet werden könnte. Die Fig. 5E-H verdeutlichen den Öffnungsvorgang, ausgehend von der Stellung gemäß Fig. 4D bis zur Stellung gemäß Fig. 5H. Durch diese Ausbildung ergeben sich für die Hubwege der Druckhebelmechanik im Vergleich zu Fig. 2 wesentlich kürzere Strecken.4A-D show the closing process of the pressure lever mechanism after the
Claims (10)
- A pressure jointer for permanently joining two plates clamped together during pressure-jointing, comprising a matrix (1) (female piece) stationarily arranged on a header (5) of the device, and a die (2) (male piece) forceable against the matrix by means of a toggle lever mechanism (SM), which die is arranged within a swivable hold-down clamp (7) forming a member of the toggle lever mechanism (SM), and to which the jointing force can be applied separately from the hold-down force,
characterized in that provided in the header (5) comprising two separate drives (3,4) separately actuable successively is the clamping mechanism (SM) actuable by the first drive (3), whose hold-down clamp (7) containing the die (2) is located on the header (5) and is swivable against the matrix (1) stationarily located on the header (5), and that associated to the clamping mechanism (SM) is a pressure lever mechanism (8) actuable by the second drive (4), the pressure arm (9) of which via a rocking lever (10) acting on die (2) and formed as a pressure member and being swivably located on the hold-down clamp (7) is pivotably connected to the said hold-down clamp (7). - A device according to claim 1,
characterized in that the clamping mechanism (SM) is in the form of a toggle lever mechanism (6) comprising a set member (14), an intermediate member (6') and an end member (7) located on the header (5) and forming the clamping lever. - A device according to claims 1 or 2,
characterized in that with the drives (3,4) designed in the form of actuating cylinders (3',4') at least the cylinder (3') forming the drive (3) is designed as a flat cylinder and that the same with the flat side thereof is associated to the other cylinder (4'). - A device according to any one of claims 1 to 3,
characterized in that a driving member (11) on the end member (7), at the actuating side, is associated to the die (2) replaceably arranged in the end member (7), and that the rocking lever (10) is provided with a stroke extension that can be placed in cooperation with the driving member (11). - A device according to any one of claims 2 to 4,
characterized in that the pressure arm (9) on the side of the toggle lever mechanism (6) is provided with an arcuate recess (13) and that the said recess is located above the end of the set member (14) of the toggle lever mechanism (6). - A device according to any one of claims 1 to 5,
characterized in that an adjustable stop (16) for limiting the joining stroke is provided axially above the set member (15) of the pressure lever mechanism (8). - A device according to any one of claims 1 to 6,
characterized in that the holder (17) of the matrix (1) replaceably arranged on the header (5) is adjustably disposed on the header (5) and that the matrix is replaceably located within the holder (17). - A device according to any one of claims 1 to 7,
characterized in that both the toggle lever mechanism (6) and the pressure lever mechanism (8) are provided with end position sensors (18). - A device according to any one of claims 2 to 8,
characterized in that a square fitting member (22) is provided between the joint extension (7'') f the end member (7) and the matrix holder (17,17'). - A device according to any one of claims 1 to 9,
characterized in that the pressure arm (9) is formed of two pivotally interconnected members (9',9') and that a clamping position stop (24) is arranged within the common joint (23).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4139347 | 1991-11-29 | ||
| DE4139347A DE4139347A1 (en) | 1991-11-29 | 1991-11-29 | PRESSURE JOINT DEVICE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0545240A1 EP0545240A1 (en) | 1993-06-09 |
| EP0545240B1 true EP0545240B1 (en) | 1995-02-22 |
Family
ID=6445889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92120043A Expired - Lifetime EP0545240B1 (en) | 1991-11-29 | 1992-11-25 | Clamping device for clinch joining |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0545240B1 (en) |
| AT (1) | ATE118706T1 (en) |
| DE (2) | DE4139347A1 (en) |
| ES (1) | ES2069367T3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITTO20010659A1 (en) * | 2001-07-06 | 2003-01-06 | Comau Spa | INTEGRATED LOCKING AND CLAMPING DEVICE, PARTICULARLY FOR THE JOINTING OF METAL SHEET PANELS AND SIMILAR. |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3210956A1 (en) * | 1982-03-25 | 1983-09-29 | Herbert 7250 Leonberg Hess | Tool for the nonreleasable connection of ductile flat workpieces |
| DE3679364D1 (en) * | 1985-09-14 | 1991-06-27 | Eugen Rapp | METHOD AND DEVICE FOR CONNECTING THIN PLATES. |
| DE3710929A1 (en) * | 1987-04-01 | 1988-10-13 | Eugen Rapp | METHOD AND DEVICE FOR CONNECTING LAYER THIN PLATES |
| US4856316A (en) * | 1987-07-08 | 1989-08-15 | Weldex, Inc. | Apparatus for forming joints |
| DE3726392A1 (en) * | 1987-08-07 | 1989-02-16 | Kuka Schweissanlagen & Roboter | Method for connecting thin plates or plate sections resting on one another |
| DE3822377A1 (en) * | 1988-07-01 | 1990-01-04 | Bayerische Motoren Werke Ag | Method and apparatus for joining two metal sheets |
| DE69112824D1 (en) * | 1990-04-03 | 1995-10-12 | Webb | RIVETING TOOL TO CONNECT SHEETS. |
| DE9015738U1 (en) * | 1990-11-18 | 1991-01-24 | Tuenkers Maschinenbau Gmbh, 4030 Ratingen, De |
-
1991
- 1991-11-29 DE DE4139347A patent/DE4139347A1/en not_active Ceased
-
1992
- 1992-11-25 DE DE59201463T patent/DE59201463D1/en not_active Expired - Fee Related
- 1992-11-25 ES ES92120043T patent/ES2069367T3/en not_active Expired - Lifetime
- 1992-11-25 AT AT92120043T patent/ATE118706T1/en not_active IP Right Cessation
- 1992-11-25 EP EP92120043A patent/EP0545240B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59201463D1 (en) | 1995-03-30 |
| ES2069367T3 (en) | 1995-05-01 |
| ATE118706T1 (en) | 1995-03-15 |
| EP0545240A1 (en) | 1993-06-09 |
| DE4139347A1 (en) | 1993-06-03 |
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