EP3403738A1 - Sheet metal bending machine - Google Patents
Sheet metal bending machine Download PDFInfo
- Publication number
- EP3403738A1 EP3403738A1 EP17171224.3A EP17171224A EP3403738A1 EP 3403738 A1 EP3403738 A1 EP 3403738A1 EP 17171224 A EP17171224 A EP 17171224A EP 3403738 A1 EP3403738 A1 EP 3403738A1
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- EP
- European Patent Office
- Prior art keywords
- bending
- cheek
- feed direction
- machine part
- machine
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- 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.)
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- 238000005452 bending Methods 0.000 title claims abstract description 124
- 239000002184 metal Substances 0.000 title description 6
- 230000000295 complement effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 240000001439 Opuntia Species 0.000 description 1
- 235000004727 Opuntia ficus indica Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
- B21D5/042—With a rotational movement of the bending blade
Definitions
- the present invention relates to a sheet metal bending machine having a lower machine part and an upper machine part, which are arranged to be movable in a feed direction of a workpiece to be bent against each other, with a lower retaining cheek and with a lower bending cheek, which are associated with the lower machine part, with an upper retaining cheek and with an upper bending cheek, which are associated with the upper machine part, wherein the four cheeks are aligned transversely to the said feed direction and between the said cheeks between the machine parts, the workpiece to be bent can be inserted, wherein the upper retaining cheek in a first clamping position relative to the lower retaining cheek clamped the workpiece to be bent, the upper retaining cheek in a second clamping position relative to the lower retaining cheek horizontally in the feed offset the workpiece to be bent clamped, wherein in the first clamping position, the lower bending cheek is set to bie the bie ing workpiece to bend the front edge of the upper retaining cheek up, wherein in the second clamping position, the
- a sheet metal bending machine with a lower machine part and an upper machine part which are arranged opposite to movable in a feed direction of a workpiece to be bent.
- a lower retaining cheek and a lower bending cheek is assigned to the lower machine part and an upper retaining cheek and an upper bending cheek are assigned in the upper machine part.
- These four cheeks are aligned transversely to said feed direction and between them, the workpiece to be bent can be inserted.
- At a first clamping position holds the upper retaining cheek opposite to the lower retaining cheek the workpiece to be bent and clamps it firmly.
- a bending cheek can be pivoted about an axis which pivots the sheet metal part to be bent.
- the bending machine after the EP 2 014 381 a bending tool on the upper cheek and on the lower cheek, which is then mounted in a mutually horizontally sliding connection, so that a second clamping position is predetermined, in which the upper retaining cheek opposite to the lower retaining cheek horizontal in the feed direction offset the workpiece to be bent clamps.
- the holding and bending cheeks are arranged so that in the first clamping position, the lower bending cheek is adapted to bend the bending workpiece about the front edge of the upper Haltewane up and in the second clamping position, the upper bending cheek is set to bend the Workpiece to bend down the front edge of the lower retaining cheek.
- the present invention seeks to provide a machine easier to use, in which the opening between the lower and upper machine part is easier to adjust and also when bending a workpiece, such as a sheet to a double layer a higher clamping force is reachable.
- the upper machine part is pivotable relative to the lower machine part about a first pivot axis aligned horizontally and transversely to the feed direction and that the upper machine part is pivotable relative to the lower machine part about a second pivot axis oriented horizontally and transversely to the feed direction the two clamping positions are achieved by means of a cam track deviating from the feed direction.
- a bending machine thus has a lower and an upper machine part, each with a retaining cheek and a bending cheek, in a feed direction of a bending Workpiece are arranged to move against each other.
- the four cheeks are aligned transversely to the said feed direction and between them the workpiece to be bent can be inserted.
- clamps the upper retaining cheek in two horizontally in the feed direction to each other shifted clamping positions relative to the lower retaining cheek the workpiece to be bent.
- the upper bending beam bends down the workpiece to be bent about the front edge of the lower bending beam and in the other clamping position, the lower bending beam bends the workpiece to be bent around the leading edge of the upper bending beam upwards.
- the upper machine part relative to the lower machine part is pivotable about two horizontally and transversely to the feed direction aligned pivot axes, so that the two clamping positions are achieved via a deviating from the feed cam track and there is a third intermediate Umschlagposition for the workpiece.
- the first and the second pivot axis are arranged above the respective pivot point of the upper machine part.
- the said smaller distance from the clamping surface of the upper retaining cheek to the corresponding clamping surface of the lower retaining cheek also correspond to the corresponding distance of the opposite surfaces of the bending cheeks.
- This smaller distance can be in conventional machines with a machining depth of more than one meter one millimeter, so at a distance between the clamping surfaces in the first and second clamping position of, for example, 2.5 millimeters, then the distance of the clamping surfaces in the third position only more than 1.5 millimeters.
- the actuator of the upper machine part which acts on the cheeks opposite free end of the upper machine part, acts on the free end of a lever, wherein the pivot axis is provided at the other free end, and the upper machine part articulated between the two free ends on the lever.
- the actuator of the upper machine part which acts on a region of the upper machine part between the cheeks and the opposite free end of the upper machine part, then acts advantageously acts on a portion of another lever, wherein the pivot axis is provided at a free end and the upper machine part is hinged to the other lever at the other free end.
- the curve movement is determined for the height of the third clamping position predetermined articulation of the upper machine part in the middle.
- the lower bending cheek and the upper bending cheek may have a same width of their clamping surface in the feed direction, which corresponds to half the horizontal distance in the feeding direction of the pivoting movement of the upper machine part to achieve the first and the second clamping position.
- the lower retaining cheek and the upper retaining cheek can have an equal width of their clamping surface in the feed direction.
- said width of the clamping surface of the retaining cheeks can correspond to said horizontal distance in the feed direction of the pivoting movement of the upper machine part. Then at least 40 to 50% of the retaining cheeks for clamping is always activated when clamping by the retaining cheeks.
- On at least one outer side of one of the bending cheeks can be provided a taper of the corresponding bending beam whose length of the clamping surface of the bending cheek corresponds to said horizontal distance in the feed direction of the pivoting movement of the upper machine part.
- the length of the tapered portion from the tip of the edge to the thickening is selected so that the underside of the upper bending cheek can be completely bent around the edge to then rest on this tapered portion.
- the taper allows with its length of the clamping surface of the bending beam in the feed direction, a pivoting of the upper bending beam to a larger angular range, so that already bent sections bent profiles can occupy an even greater space
- the Fig. 1 shows a perspective view of a bending machine 1, more specifically a section of a bending machine 10, wherein the lower part 20 is mounted with feet 24 on a floor.
- the lower part 20 is substantially flat and forms a C.
- a bending machine 10 has at least two such sections 20, each with one the upper part 30 hinged to the lower part 20.
- the sections are connected inter alia via the horizontal shaft 92 'of the upper pivot point and the horizontal shaft 44 of a lower pivot point for the cheek actuation.
- the cheeks described later extend beyond adjacent sections.
- Each section of the bending machine 10 has said base 20, which is fixed to the ground or is on this.
- the upper part 30 is articulated, of which in the Fig. 1 only one back plate is shown.
- a first drive 95 is mounted in the rear region, with which the plunger 21 can be moved forward in a substantially horizontal direction.
- the plunger 21 is articulated on a free end of a substantially vertically oriented lever 22 which is pivotally connected to the lower part 20 in the region of its opposite free end on the Anlenkhülse 91 '.
- the lever 22 consists of two parallel interconnected plates, at the lower end of the pivot axis 23 from both sides of the plunger 21 pivotally engages.
- the rear plate of the upper part 30 is diagrammatically in the Fig. 1 arranged behind the rear plate 22, a front, not shown here plate of the upper part 30 is arranged in front of the front plate 22.
- the distance between the two plates of the upper part 30 is ensured, inter alia, by a spacer sleeve 33.
- the two plates of the upper part 30 surround the coupling sleeve 93 'on the lever 22, on which they are pivotally mounted. With a movement of the plunger 21 to the thus also the upper part 30 is pivoted about the pivot axis located in the Anlenkhülse 91 '.
- a second drive 96 is articulated, the plunger 31 extends forward extended to the other lever 32.
- the further lever 32 is connected at its lower end to the Anlenkhülse 94 '.
- the Indian Fig. 1 non-visible parts of the Anlenkhülse 94 ' is connected to the visible rear plate of the upper part 30 while the visible part in the same plane as the Anlenkhülse 93' with the not shown here front plate of the upper part 30 is pivotally connected.
- the opposite upper end of the further lever 32 engages the horizontal shaft 92 'of the upper pivot point, which is held by a lateral receptacle in the end region of the lower part 20.
- the Fig. 2 shows a schematic side view of the bending machine 10 after Fig. 1 with the retaining cheeks 50, 60 in a first clamping position; and the Fig. 3 shows a schematic side view of the same bending machine 10 after Fig. 1 with the retaining cheeks in the second clamping position, which increases in the Fig. 4 respectively.
- Fig. 5 are shown as the first clamping position 110 and second clamping position 120.
- the two end positions of the movement of the cheeks are achieved by the actuation of the actuators 95 and 96, which have an influence on the arrangement of the cheeks. In this case, the lower clamping cheek 50 remains in place.
- the reference numerals 97 'and 98', the pivot points of the lower or upper bending beam drive are designated. Only the actuator of the lower bending beam drive 97 is in the Fig. 3 located.
- the actuator of the upper bending beam drive is fastened to the upper part 30 in the same way.
- the bending machine 10 in this case has a lower clamping cheek 50 and an upper clamping cheek 60, which are fastened respectively to the lower part 20 and to the upper part 30.
- the reference numeral 100 designates the feed direction for a work part, which is in the Figs. 2 to 5 Drawn from the left between the cheeks.
- the lower bending cheek 70 In front of the lower cheek 50, opposite to the feed direction 100, the lower bending cheek 70 is arranged and in front of the upper cheek 60, the upper bending cheek 80 is correspondingly arranged, wherein the corresponding clamping positions in accordance Fig. 2 and 3 in the detail drawings of the Figs. 4 or 5 are shown.
- the plunger 21 is arranged between the two parallel flat lever surfaces of the lever 22, which allows a simpler central transfer of forces.
- the drive 96 is arranged centrally between the plates of the lever 22 and those of the lever 32.
- the lower clamping surface 52 of the lower retaining cheek 50 is parallel to the upper clamping surface 62 of the upper retaining cheek 60.
- Lower retaining cheek 60 and 50 twice as long as the length of the upper and lower bending cheek 80 and
- the upper clamping surface 62 of the upper retaining cheek 60 is arranged opposite a part of the surface 52 of the lower retaining cheek 50 and opposite the lower clamping face 72 of the lower bending cheek 70.
- the upper bending beam 80 projects with its complete upper clamping surface 82 over the front edge 71 of the lower bending beam 70.
- the tapered outer surface of the lower bending cheek 70 is designated.
- the length of the tapered portion 74 from the tip of the edge 71 to the thickening is selected so that, as in the Fig. 8 it can be seen, the bottom 82 of the upper bending cheek 80 can be bent completely around the edge 71, and then rest on this tapered portion 74.
- the taper 74 allows with its length of the clamping surface 72 of the bending beam 70 in the feed direction 100, a pivoting of the upper bending beam 80 by a larger angular range, so that already bent portions bent profiles can occupy an even greater space.
- the second defined clamping position of the bending machine 10 is in the Fig. 5 shown.
- the lower part 20 and thus the lower retaining cheek 50 remain at the same location.
- Fig. 4 to Fig. 5 The movement of Fig. 4 to Fig. 5 is achieved by the pivotal movement of the upper part 30, wherein in particular the located at the pivot point 93 on the rear lever 22 part of the upper part 30 pivoted moves backwards passing a low point in the vertical direction when the perpendicular 90 is passed.
- the middle part of the front of the upper part 30 is pivoted in the same direction over the vertical 90 by a downward evading pivotal movement to the rear.
- the actuators 95 and 96 are moved in the following manner.
- the rear suspension 93 moves from in the Fig. 2 shown position to the left of the vertical 90 in the position 93 of Fig.
- the actuator 97 is a lower bending beam drive for the control parallelogram 75. It is essential only that the lower bending beam 70 can be guided around the front edge 81 of the upper bending beam 80 and that the upper bending beam 80 can be guided around the front edge 71 of the lower bending beam 70.
- the Fig. 6 shows the front clamping region with the four cheeks 50, 60, 70, 80, which are arranged directly opposite each other in a third position, in which the lower clamping surface 52 directly opposite the upper clamping surface 62 and the lower clamping surface 72 exactly opposite the upper clamping surface 82nd are arranged.
- the leading edges 71 and 81 of the lower bending cheeks 70 and 80 are opposite in this position.
- the actuators 95 and 96 in the movement have brought the rotary sleeves 93 and 94 approximately in the vertical, which in other words, they are located lower than the end positions of the trajectories. Since the rotary sleeves 93 and 94 are then in their lowest position, the upper part 30 suspended therefrom is also in its lowest position.
- the Fig. 7 shows an enlarged schematic side view of the cheek area when bending with the lower bending beam 70, wherein the upper retaining cheek 60 and upper bending cheek 80 in contact with each other, namely, that the upper bending cheek 80, with its inclined inner surface 83 to the complementary inclined outer surface of the connects upper retaining cheek 60.
- the lower clamping surface 62 and the upper clamping surface 82 form an aligned line with each other.
- a parallelogram mechanism 75 is provided, which is actuated by a corresponding actuator 97. These elements are attached directly to the lower part 20, which remains stationary in this respect.
- the parallelogram mechanism 75 may be replaced in other embodiments by another known Biegegewangenbewegs sheep.
- the Fig. 8 shows an enlarged schematic side view of the cheek area when bending with the upper bending cheek 80th Das zu Fig. 7
- the parallelogram mechanism 85 is actuated by the actuator 98 as the upper bending beam drive and it may be replaced in other embodiments by another known Biegegewangenbewegs sheep.
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Abstract
Eine Biegemaschine (10) hat ein Unterteil (20) und ein Oberteil (30) mit jeweils einer Haltewange (50 bzw. 60) und Biegewange (70 bzw. 80), die in einer Zuführrichtung (100) eines zu biegenden Werkteiles gegeneinander beweglich angeordnet sind. Die vier Wangen (50, 60, 70 80) sind quer zur besagten Zuführrichtung (100) ausgerichtet und dazwischen ist das zu biegende Werkteil einlegbar. Dann klemmt die obere Haltewange (60) in zwei horizontal in der Zuführrichtung (100) zu einander verschobenen Klemmpositionen gegenüber der unteren Haltewange (50) das Werkteil. In der einen Klemmposition biegt die obere Biegewange (80) das Werkteil um die Vorderkante (71) der unteren Biegewange (70) nach unten und in der anderen Klemmposition biegt die untere Biegewange (70) das Werkteil um die Vorderkante (81) der oberen Biegewange (80) nach oben. Dabei ist das Oberteil (30) gegenüber dem Unterteil (20) um zwei horizontal und quer zur Zuführrichtung (100) ausgerichtete Verschwenkachsen (91, 92) verschwenkbar, so dass die beiden Klemmpositionen (110, 120) über eine aus der Zuführrichtung (100) abweichende Kurvenbahn erreicht werden und eine dritte dazwischenliegende Umschlagposition für das Werkteil besteht. A bending machine (10) has a lower part (20) and an upper part (30) each with a retaining cheek (50 or 60) and bending cheek (70 or 80), which are arranged in a feed direction (100) of a workpiece to be bent against each other are. The four cheeks (50, 60, 70 80) are aligned transversely to said feed direction (100) and in between the workpiece to be bent is inserted. Then clamps the upper retaining cheek (60) in two horizontally in the feed direction (100) to each other shifted clamping positions relative to the lower retaining cheek (50) the workpiece. In one clamping position, the upper bending beam (80) bends down the workpiece about the leading edge (71) of the lower bending beam (70) and in the other clamping position, the lower bending beam (70) bends the workpiece about the leading edge (81) of the upper bending beam (80) upwards. In this case, the upper part (30) is pivotable relative to the lower part (20) about two pivot axes (91, 92) oriented horizontally and transversely to the feed direction (100), so that the two clamping positions (110, 120) are conveyed by means of a feed direction (100). Deviating curved path can be achieved and there is a third intermediate Umschlagposition for the workpiece.
Description
Die vorliegende Erfindung betrifft eine Blechbiegemaschine mit einem unteren Maschinenteil und einem oberen Maschinenteil, die in einer Zuführrichtung eines zu biegendes Werkteiles gegeneinander beweglich angeordnet sind, mit einer unteren Haltewange und mit einer unteren Biegewange, die dem unteren Maschinenteil zugeordnet sind, mit einer oberen Haltewange und mit einer oberen Biegewange, die dem oberen Maschinenteil zugeordnet sind, wobei die vier Wangen quer zur besagten Zuführrichtung ausgerichtet sind und zwischen den besagten vier Wangen zwischen den Maschinenteilen das zu biegende Werkteil einlegbar ist, wobei die obere Haltewange in einer ersten Klemmposition gegenüber der unteren Haltewange das zu biegende Werkteil klemmt, wobei die obere Haltewange in einer zweiten Klemmposition gegenüber der unteren Haltewange horizontal in der Zuführrichtung versetzt das zu biegende Werkteil klemmt, wobei in der ersten Klemmposition die untere Biegewange eingerichtet ist, um das zu biegende Werkteil um die Vorderkante der oberen Haltewange nach oben zu biegen, wobei in der zweiten Klemmposition die obere Biegewange eingerichtet ist, um das zu biegende Werkteil um die Vorderkante der unteren Haltewange nach unten zu biegen.The present invention relates to a sheet metal bending machine having a lower machine part and an upper machine part, which are arranged to be movable in a feed direction of a workpiece to be bent against each other, with a lower retaining cheek and with a lower bending cheek, which are associated with the lower machine part, with an upper retaining cheek and with an upper bending cheek, which are associated with the upper machine part, wherein the four cheeks are aligned transversely to the said feed direction and between the said cheeks between the machine parts, the workpiece to be bent can be inserted, wherein the upper retaining cheek in a first clamping position relative to the lower retaining cheek clamped the workpiece to be bent, the upper retaining cheek in a second clamping position relative to the lower retaining cheek horizontally in the feed offset the workpiece to be bent clamped, wherein in the first clamping position, the lower bending cheek is set to bie the bie ing workpiece to bend the front edge of the upper retaining cheek up, wherein in the second clamping position, the upper bending cheek is adapted to bend the workpiece to be bent around the front edge of the lower retaining cheek down.
Aus der
Ausgehend vom diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine einfacher zu bedienende Maschine anzugeben, bei der die Öffnung zwischen unterem und oberen Maschinenteil leichter einstellbar ist und zudem beim Umbiegen eines Werkteils, wie einem Blech, zu einer doppelten Lage eine höhere Klemmkraft erreichbar ist.Based on this prior art, the present invention seeks to provide a machine easier to use, in which the opening between the lower and upper machine part is easier to adjust and also when bending a workpiece, such as a sheet to a double layer a higher clamping force is reachable.
Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass das obere Maschinenteil gegenüber dem unteren Maschinenteil um eine horizontal und quer zur Zuführrichtung ausgerichtete erste Verschwenkachse verschwenkbar ist und dass das obere Maschinenteil gegenüber dem unteren Maschinenteil um eine horizontal und quer zur Zuführrichtung ausgerichtete zweite Verschwenkachse verschwenkbar ist, so dass die beiden Klemmpositionen über eine aus der Zuführrichtung abweichende Kurvenbahn erreicht wird.This object is achieved according to the invention in that the upper machine part is pivotable relative to the lower machine part about a first pivot axis aligned horizontally and transversely to the feed direction and that the upper machine part is pivotable relative to the lower machine part about a second pivot axis oriented horizontally and transversely to the feed direction the two clamping positions are achieved by means of a cam track deviating from the feed direction.
Eine Biegemaschine hat also ein unteres und ein oberes Maschinenteil mit jeweils einer Haltewange und einer Biegewange, die in einer Zuführrichtung eines zu biegenden Werkteiles gegeneinander beweglich angeordnet sind. Die vier Wangen sind quer zur besagten Zuführrichtung ausgerichtet und dazwischen ist das zu biegende Werkteil einlegbar. Dann klemmt die obere Haltewange in zwei horizontal in der Zuführrichtung zu einander verschobenen Klemmpositionen gegenüber der unteren Haltewange das zu biegende Werkteil. In der einen Klemmposition biegt die obere Biegewange das zu biegende Werkteil um die Vorderkante der unteren Biegewange nach unten und in der anderen Klemmposition biegt die untere Biegewange das zu biegende Werkteil um die Vorderkante der oberen Biegewange nach oben. Dabei ist das obere Maschinenteil gegenüber dem unteren Maschinenteil um zwei horizontal und quer zur Zuführrichtung ausgerichtete Verschwenkachsen verschwenkbar, so dass die beiden Klemmpositionen über eine aus der Zuführrichtung abweichende Kurvenbahn erreicht werden und eine dritte dazwischenliegende Umschlagposition für das Werkteil besteht.A bending machine thus has a lower and an upper machine part, each with a retaining cheek and a bending cheek, in a feed direction of a bending Workpiece are arranged to move against each other. The four cheeks are aligned transversely to the said feed direction and between them the workpiece to be bent can be inserted. Then clamps the upper retaining cheek in two horizontally in the feed direction to each other shifted clamping positions relative to the lower retaining cheek the workpiece to be bent. In one clamping position, the upper bending beam bends down the workpiece to be bent about the front edge of the lower bending beam and in the other clamping position, the lower bending beam bends the workpiece to be bent around the leading edge of the upper bending beam upwards. In this case, the upper machine part relative to the lower machine part is pivotable about two horizontally and transversely to the feed direction aligned pivot axes, so that the two clamping positions are achieved via a deviating from the feed cam track and there is a third intermediate Umschlagposition for the workpiece.
Bei einer vorteilhaften Biegemaschine sind die erste und die zweite Verschwenkachse oberhalb des jeweiligen Anlenkpunktes des oberen Maschinenteils angeordnet ist.In an advantageous bending machine, the first and the second pivot axis are arranged above the respective pivot point of the upper machine part.
Es ergibt sich eine vorteilhafte dritte Klemmposition, bei der die erste und die zweite Verschwenkachse so verschwenkt sind, dass die obere Haltewange und die untere Haltewange in einem gegenüber dem Abstand der Haltewangen in der ersten bzw. zweiten Klemmposition geringeren Abstand angeordnet sind, insbesondere für eine Umschlagfaltung des zu biegenden Werkteils.This results in an advantageous third clamping position, in which the first and the second pivot axis are pivoted so that the upper retaining cheek and the lower retaining cheek are arranged in a relation to the distance of the retaining cheeks in the first and second clamping position less distance, in particular for a Envelope folding of the part to be bent.
Dabei kann der besagte geringere Abstand von der Klemmfläche der oberen Haltewange zur entsprechenden Klemmfläche der unteren Haltewange auch dem entsprechenden Abstand der gegenüberliegenden Flächen der Biegewangen entsprechen. Dieser geringere Abstand kann bei üblichen Maschinen mit einer Bearbeitungstiefe von mehr als einem Meter ein Millimeter betragen, also bei einem Abstand zwischen den Klemmflächen in der ersten und zweiten Klemmposition von beispielsweise 2,5 Millimeter, dann kann der Abstand der Klemmflächen in der dritten Position nur mehr 1,5 Millimeter betragen.In this case, the said smaller distance from the clamping surface of the upper retaining cheek to the corresponding clamping surface of the lower retaining cheek also correspond to the corresponding distance of the opposite surfaces of the bending cheeks. This smaller distance can be in conventional machines with a machining depth of more than one meter one millimeter, so at a distance between the clamping surfaces in the first and second clamping position of, for example, 2.5 millimeters, then the distance of the clamping surfaces in the third position only more than 1.5 millimeters.
Der Aktuator des oberen Maschinenteils, der auf das den Wangen gegenüberliegende freie Ende des oberen Maschinenteils wirkt, wirkt auf das freie Ende eines Hebels, wobei die Verschwenkachse am anderen freien Ende vorgesehen ist, und das obere Maschinenteil ist zwischen den beiden freien Enden an dem Hebel angelenkt.The actuator of the upper machine part, which acts on the cheeks opposite free end of the upper machine part, acts on the free end of a lever, wherein the pivot axis is provided at the other free end, and the upper machine part articulated between the two free ends on the lever.
Der Aktuator des oberen Maschinenteils, der auf einen Bereich des oberen Maschinenteils zwischen den Wangen und dem gegenüberliegenden freien Ende des oberen Maschinenteils wirkt, wirkt dann vorteilhafterweise auf einen Bereich eines weiteren Hebels wirkt, wobei die Verschwenkachse an einem freien Ende vorgesehen ist und das obere Maschinenteil an dem anderen freien Ende an dem weiteren Hebel angelenkt ist. Dadurch wird die Kurvenbewegung für den die Höhe der dritten Klemmposition vorgegebene Anlenkung des oberen Maschinenteils in der Mitte festgelegt.The actuator of the upper machine part, which acts on a region of the upper machine part between the cheeks and the opposite free end of the upper machine part, then acts advantageously acts on a portion of another lever, wherein the pivot axis is provided at a free end and the upper machine part is hinged to the other lever at the other free end. As a result, the curve movement is determined for the height of the third clamping position predetermined articulation of the upper machine part in the middle.
Die untere Biegewange und die obere Biegewange können in Zuführrichtung eine gleiche Breite ihrer Klemmfläche aufweisen, die der Hälfte des horizontalen Abstands in Zuführrichtung der Verschwenkbewegung des oberen Maschinenteils zur Erreichung der ersten und der zweiten Klemmposition entspricht.The lower bending cheek and the upper bending cheek may have a same width of their clamping surface in the feed direction, which corresponds to half the horizontal distance in the feeding direction of the pivoting movement of the upper machine part to achieve the first and the second clamping position.
Die untere Haltewange und die obere Haltewange können in Zuführrichtung eine gleiche Breite ihrer Klemmfläche aufweisen.The lower retaining cheek and the upper retaining cheek can have an equal width of their clamping surface in the feed direction.
Bei Vorliegen der beiden genannten Merkmale kann die besagte Breite der Klemmfläche der Haltewangen dem besagten horizontalen Abstand in Zuführrichtung der Verschwenkbewegung des oberen Maschinenteils entsprechen. Dann wird beim Klemmen durch die Haltewangen immer mindestens 40 bis 50% der Haltewangen für die Klemmung aktiviert.In the presence of the two features mentioned, said width of the clamping surface of the retaining cheeks can correspond to said horizontal distance in the feed direction of the pivoting movement of the upper machine part. Then at least 40 to 50% of the retaining cheeks for clamping is always activated when clamping by the retaining cheeks.
Auf mindestens einer Aussenseite von einer der Biegewangen kann eine Verjüngung der entsprechenden Biegewange vorgesehen sein, deren Länge der Klemmfläche der Biegewange dem besagten horizontalen Abstand in Zuführrichtung der Verschwenkbewegung des oberen Maschinenteils entspricht. Die Länge des verjüngten Abschnitts von der Spitze der Kante bis zur Verdickung ist so gewählt, dass die Unterseite der oberen Biegewange vollkommen um die Kante herumgebogen werden kann, um dann auf diesem verjüngten Abschnitt aufzuliegen. Die Verjüngung erlaubt mit ihrer Länge der Klemmfläche der Biegewange in Zuführrichtung ein Umschwenken der oberen Biegewange um einen grösseren Winkelbereich, so dass bereits gebogene Abschnitte gebogener Profile einen noch grösseren Freiraum belegen könnenOn at least one outer side of one of the bending cheeks can be provided a taper of the corresponding bending beam whose length of the clamping surface of the bending cheek corresponds to said horizontal distance in the feed direction of the pivoting movement of the upper machine part. The length of the tapered portion from the tip of the edge to the thickening is selected so that the underside of the upper bending cheek can be completely bent around the edge to then rest on this tapered portion. The taper allows with its length of the clamping surface of the bending beam in the feed direction, a pivoting of the upper bending beam to a larger angular range, so that already bent sections bent profiles can occupy an even greater space
Weitere Ausführungsformen sind in den abhängigen Ansprüchen angegeben.Further embodiments are given in the dependent claims.
Bevorzugte Ausführungsformen der Erfindung werden im Folgenden anhand der Zeichnungen beschrieben, die lediglich zur Erläuterung dienen und nicht einschränkend auszulegen sind. In den Zeichnungen zeigen:
- Fig. 1
- eine perspektivische Ansicht eines Biegemaschine;
- Fig. 2
- eine schematische Seitenansicht der Biegemaschine nach
Fig. 1 in der ersten Klemmposition; - Fig. 3
- eine schematische Seitenansicht der Biegemaschine nach
Fig. 1 in der zweiten Klemmposition; - Fig. 4
- eine stark vergrösserte schematische Seitenansicht des Wangenbereichs der
Fig. 2 ; - Fig. 5
- eine stark vergrösserte schematische Seitenansicht des Wangenbereichs der
Fig. 3 ; - Fig. 6
- eine stark vergrösserte schematische Seitenansicht des Wangenbereichs beim Übergang zwischen der ersten und zweiten Klemmposition;
- Fig. 7
- eine vergrösserte schematische Seitenansicht des Wangenbereichs beim Biegen mit der unteren Biegewange; und
- Fig. 8
- eine vergrösserte schematische Seitenansicht des Wangenbereichs beim Biegen mit der oberen Biegewange.
- Fig. 1
- a perspective view of a bending machine;
- Fig. 2
- a schematic side view of the bending machine according to
Fig. 1 in the first clamping position; - Fig. 3
- a schematic side view of the bending machine according to
Fig. 1 in the second clamping position; - Fig. 4
- a greatly enlarged schematic side view of the cheek area of
Fig. 2 ; - Fig. 5
- a greatly enlarged schematic side view of the cheek area of
Fig. 3 ; - Fig. 6
- a greatly enlarged schematic side view of the cheek area at the transition between the first and second clamping position;
- Fig. 7
- an enlarged schematic side view of the cheek area when bending with the lower bending cheek; and
- Fig. 8
- an enlarged schematic side view of the cheek area when bending with the upper bending cheek.
Die
Jede Sektion der Biegemaschine 10 verfügt über das besagte Unterteil 20, welches fest mit dem Boden verbunden ist oder auf diesem steht. An dem besagten Unterteil 20 ist das Oberteil 30 angelenkt, von dem in der
Die hintere Platte des Oberteils 30 ist zeichnerisch in der
Am gegenüberliegenden freien Ende des Hebels 22 ist ein zweiter Antrieb 96 angelenkt, dessen Stössel 31 nach vorne verlängert auf den weiteren Hebel 32 wirkt. Der weitere Hebel 32 ist an seinem unteren Ende mit der Anlenkhülse 94' verbunden. Der in der
Die
Die Biegemaschine 10 verfügt dabei über eine untere Klemmwange 50 und eine obere Klemmwange 60, die jeweils am Unterteil 20 bzw. am Oberteil 30 befestigt sind. Mit dem Bezugszeichen 100 ist die Zuführrichtung für ein Werkteil bezeichnet, welches in den
In der Darstellung der
Mit dem Bezugszeichen 74 ist die verjüngte Aussenfläche der unteren Biegewange 70 bezeichnet. Die Länge des verjüngten Abschnitts 74 von der Spitze der Kante 71 bis zur Verdickung ist so gewählt, dass, wie in der
Die zweite definierte Klemmposition der Biegemaschine 10 ist in der
Die Bewegung von
Die
Die
Für die Bewegung der unteren Biegewange 70 ist eine Parallelogrammmechanik 75 vorgesehen, die durch einen entsprechenden Aktuator 97 betätigt wird. Diese Elemente sind direkt am Unterteil 20 befestigt, welches insofern ortsfest verbleibt. Die Parallelogrammmechanik 75 kann in anderen Ausführungsbeispielen durch eine andere bekannte Biegewangenbewegungseinrichtung ersetzt werden.For the movement of the
Die
Claims (10)
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EP17171224.3A EP3403738B1 (en) | 2017-05-16 | 2017-05-16 | Sheet metal bending machine |
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EP3403738B1 EP3403738B1 (en) | 2022-08-03 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111468574A (en) * | 2020-05-07 | 2020-07-31 | 湖南固可得建筑科技有限公司 | Full-automatic two-way flanging machine |
EP3778049A1 (en) | 2019-08-15 | 2021-02-17 | Thalmann Maschinenbau AG | Processing machine for flat material parts with a laying unit and method therefor |
CN113732129A (en) * | 2021-09-03 | 2021-12-03 | 肖丽芳 | Multi-angle bending machine for manufacturing electrical cabinet |
EP4186607A1 (en) * | 2021-11-26 | 2023-05-31 | Sucorema Subcontrato Fabricação e Reparação de Mãquinas Lda | Sheet metal folding machine |
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WO1997032677A1 (en) * | 1996-03-08 | 1997-09-12 | Cornelis Hendricus Liet | Apparatus for bending a metal sheet |
EP2014381A2 (en) | 2007-07-13 | 2009-01-14 | Franze Reinhard | Sheet-metal bending machine, preferentially hydro-powered machine, and a method of its operation |
JP2013146750A (en) * | 2012-01-18 | 2013-08-01 | Amada Co Ltd | Plate material bending method and plate material bending machine |
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WO1997032677A1 (en) * | 1996-03-08 | 1997-09-12 | Cornelis Hendricus Liet | Apparatus for bending a metal sheet |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3778049A1 (en) | 2019-08-15 | 2021-02-17 | Thalmann Maschinenbau AG | Processing machine for flat material parts with a laying unit and method therefor |
EP3778048A1 (en) | 2019-08-15 | 2021-02-17 | Thalmann Maschinenbau AG | Processing machine for flat material parts with a laying unit and method therefor |
US11541442B2 (en) | 2019-08-15 | 2023-01-03 | Thalmann Maschinenbau Ag | Processing machine for flat material parts with a support unit and method therefor |
CN111468574A (en) * | 2020-05-07 | 2020-07-31 | 湖南固可得建筑科技有限公司 | Full-automatic two-way flanging machine |
CN111468574B (en) * | 2020-05-07 | 2022-04-01 | 湖南固可得建筑科技有限公司 | Full-automatic two-way flanging machine |
CN113732129A (en) * | 2021-09-03 | 2021-12-03 | 肖丽芳 | Multi-angle bending machine for manufacturing electrical cabinet |
CN113732129B (en) * | 2021-09-03 | 2023-11-10 | 新昌县新明实业有限公司 | Multi-angle bending machine for manufacturing electrical cabinet |
EP4186607A1 (en) * | 2021-11-26 | 2023-05-31 | Sucorema Subcontrato Fabricação e Reparação de Mãquinas Lda | Sheet metal folding machine |
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