EP2077166B1 - Longitudinal edge machining device for sheet metal - Google Patents

Longitudinal edge machining device for sheet metal Download PDF

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Publication number
EP2077166B1
EP2077166B1 EP08022540.2A EP08022540A EP2077166B1 EP 2077166 B1 EP2077166 B1 EP 2077166B1 EP 08022540 A EP08022540 A EP 08022540A EP 2077166 B1 EP2077166 B1 EP 2077166B1
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EP
European Patent Office
Prior art keywords
longitudinal edge
bending
sheet
machining device
metal sheet
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EP08022540.2A
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German (de)
French (fr)
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EP2077166A1 (en
Inventor
Joachim Dr.-Ing. Beissel
Thilo Dr.-Ing. Reichel
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EISENBAU KRAEMER MBH
Eisenbau Kramer Mbh
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EISENBAU KRAEMER MBH
Eisenbau Kramer Mbh
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Priority to PL08022540T priority Critical patent/PL2077166T3/en
Publication of EP2077166A1 publication Critical patent/EP2077166A1/en
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    • 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
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes

Definitions

  • the invention relates to a longitudinal edge processing device for sheets, in particular in the production of pipes, with a clamping device and a bending device with lower and upper mold assembly, which are formed for bending the longitudinal edge, wherein the lower and the upper mold assembly over the entire length of the longitudinal edge of the sheet are extended and of which at least the upper or the lower mold assembly for carrying out the bending process in the vertical direction with respect to the metal plate adjustable and can be acted upon with adjustable bending force in the adjustment.
  • a longitudinal edge processing device for sheets of this type shows the DE 25 10 488 A1 .
  • a lower tool and an upper tool extend over the entire length of a longitudinal edge with or without interruption.
  • Another longitudinal edge processing device for sheets, especially in the pipe production is in the DE 23 65 515 A1 specified.
  • this known longitudinal edge processing device both straight and oblique cuts can be performed, for. B. a V or X-shaping for a longitudinal weld of the finished bent pipe, and bending operations are carried out on a common table. To edit the longitudinal edge of the table is guided with a clamped sheet metal plate on a planing device over. After that, the longitudinal edges of the sheet pass into the area of a pre-bending unit and then into a finish-bending unit. The desired bending is carried out by means of pairs of rolls.
  • a longitudinal edge processing apparatus for tubes for tube production with a roller bending device and edge processing device also shows the EP 0 056376 B.
  • the DE 24 02 190 A1 shown plate bending machine in which also no edge processing is provided, are above the top and bottom a plurality of rows directed towards the lower or upper outer surface of the sheet through a sheet metal plate supplied via a support device, which are arranged at different distances from the sheet outer surface.
  • the stamps on the top and bottom of the sheet are each arranged in at least three rows, each row on the top opposite a row on the bottom and the distances between the rows are adjustable. In particular, thick sheets are to be bent in this way only with considerable effort.
  • Another pipe bending machine is in the DE 42 15 807 A1 as well as in the EP 0 051 554 A2 shown.
  • the EP 0 051 554 A2 and the DE 24 55 521 A1 show examples of hydraulic sheet metal bending presses.
  • the present invention has for its object to provide a longitudinal edge processing device of the type mentioned, which simplifies the processing of metal plates, for example, for the production of pipes.
  • the advantage of the longitudinal edge machining device formed in this way is that the bending and machining of the edges in the same installation can be carried out reliably with relatively little effort, even if thick sheets are present, such as those used for pipes of large diameter (eg larger than 50 cm) ,
  • An advantageous for the control of the bending process construction is that the lower and / or the upper mold assembly is connected for adjusting to a hydraulic adjusting device / are.
  • the features of the structure and the function are advantageous in that the lower and / or the upper die arrangement is / are constructed in a direction parallel to the longitudinal edge of the metal sheet from a plurality of segments.
  • a good adaptation to different sheets and bending radii results from the fact that the segments of the lower mold assembly each have a setting cylinder and a mold punch with press shoe and the segments of the upper mold assembly each having a further actuating cylinder and another forming die with another press shoe.
  • the training may be such that the press shoes are interchangeable.
  • An advantageous construction for the processing operations is that for receiving the plate-shaped sheet a support is provided and that a feeding device is provided, by means of which the sheet over the support in the direction transverse to the sheet longitudinal edge can be guided to the arranged next to the support bending device.
  • the sheet metal processing is further facilitated by the fact that the edge processing device is arranged outside the bending device with respect to the longitudinal edge of the sheet to be processed, wherein a processing tool can be moved along the longitudinal edge.
  • machining tool is a milling tool.
  • wave-shaped sheets can be prepared in the same system for further processing.
  • the straightening may be effected by the bending device extending longitudinally over the sheet, or an additional arrangement of straightening means may be provided.
  • An automatic implementation of the bending process is achieved reliably in that the clamping device and the bending device are connected to a common control device, which is designed for coordinated clamping and bending control.
  • the measures that also the feeding device and the edge processing device are connected to the control device contribute to a simplified automatic processing.
  • An advantageous further embodiment for the machining is that the bending device is designed for bending, and that the clamping device has an abutment device, which is designed to effect the counterforces to be applied for the bending, wherein the sheet clamping device is dimensioned with pressing cylinders and press shoes so that a fixing of the sheet both during milling, planing or cutting and when bending and / or straightening is ensured.
  • a planing tool or another cutting tool may also be provided.
  • Fig. 1 shows a longitudinal edge processing device for sheets B, as used in particular for the production of pipes for processing of longitudinal edges before a final bending process.
  • a flat, plate-shaped sheet B is fed via a support 14 by means of a feed device 20 in the transverse direction to its one longitudinal edge of a processing station.
  • the longitudinal edge portion is located in the region of a bending device with a lower mold unit 7 and an upper mold unit 8, wherein the lower mold unit 7 on its upper side facing the sheet metal side concerned a mold cavity 7.1 and the upper mold unit 8 in their respective flat sheet side facing end portion receives a recorded on a molded part 8.2 8.2 convex molded part 8.1.
  • the molding units 7 and 8 which may be continuous or segmented in the longitudinal direction, extend parallel to the longitudinal edge of the sheet and are adjustably mounted on a respective adjusting unit 9, 9 ', with which they can be adjusted perpendicular to the sheet metal plane to a bend of the Sheet edge to make.
  • an edge processing device 30 is further arranged, which can be moved to the sheet edge or the sheet B by means of the feeder 20 can be fed.
  • the machining tool of the edge processing device 30 is shaped accordingly to z. B. to prepare a weld preparation in V, Y or X form.
  • the machining tool is preferably a milling tool, but may also be a planing tool or other cutting tool.
  • the structure may be designed so that the machining tool along the sheet longitudinal edge is moved at resting sheet B or the sheet B is moved along the stationary machining tool.
  • a clamping device 10 is provided with which the plate-shaped sheet B against the support 14 or another support 11 (see. Fig. 2 and 3 ) is clamped to perform the longitudinal edge machining stable and accurate.
  • the clamping device is z. B. equipped with pneumatically or hydraulically operated Presszylindem and press shoes and dimensioned so that a fixing of the sheet B is ensured both when working with the milling, planing or cutting tool and when bending.
  • the control of the feeding device 20, the clamping device 10 and the bending device is carried out by means of a common control device 5 coordinated with each other, wherein the control of the edge processing device 30 may be included in the control by the control device 5.
  • the sheet B is guided by means of the feeding device to the processing point of the edge processing device 30 and then the clamping device 10 is actuated. Then, the control of the bending device takes place. Subsequently, the metal plate thus processed at its edge can be rotated and processed along its other longitudinal edge with the same bending device and edge processing device accordingly.
  • a corresponding edge processing device can be provided along the other sheet longitudinal edge, so that a parallel corresponding processing of the two longitudinal edges can be performed simultaneously or with a time delay. After the longitudinal edge machining, the sheet B can then be supplied to the further bending process, for example in a separate plant.
  • a further embodiment of a longitudinal edge processing device is shown.
  • an edge processing device 30 for example with a milling tool, a planing tool or other cutting tool according to the previous embodiment.
  • a feeder 20 may be formed and connected to a control device 5 accordingly.
  • the clamping device 10 and a bending device, with which a bending can also take place, are modified in comparison to the first exemplary embodiment.
  • the Fig. 2 shows a arranged in a plate bending machine sheet metal plate B, above the top of a plurality of rows of dies 1 and under the bottom of a series of dies 3 are arranged.
  • the metal plate B which is supplied via a support 14, is fixed stably in the clamping device 10 with a support 11 on the underside and a clamping arrangement 12 on the upper side, wherein the clamping arrangement 12 by means of a preferably hydraulic or pneumatic actuator 13 against the top of Sheet metal B is pressed against the support 11.
  • the top of the metal plate B facing end portions of the die 1 are provided with press shoes 1.1, the ends of which are tapered conical or convex rounded to the outside, so that they favor the bending operation according to the set curvature.
  • a further press shoe 4 which directed to the lower surface of the metal plate B towards end face is also tapered or convex rounded to the outside, so that at the beginning of the bending work the flat Sheet metal B rests only point-like or line-like on the press shoe 4 and during bending a change in inclination of the lower sheet surface relative to the end face of the press shoe 4 can proceed unhindered, whereby the bending process is additionally favored.
  • the forming dies 1 and the forming dies 3 are preferably operated by means of hydraulically driven actuators, in particular actuating cylinder 2 or 6, for setting to the predetermined curvature on the one hand and for the bending operation on the other hand, wherein the control or regulation of the actuation by means of the control device 5 takes place.
  • a hydraulic drive in particular for the forming dies 3, a pneumatic drive can be provided.
  • press shoes 1.1 and / or further press shoes 4 are exchangeably attached to the end sections of the forming dies 1 or the forming dies 3 in one embodiment, press shoes 1.1, 4 with differently shaped end faces can easily be exchanged for one another, or they can be easily replaced when worn , Also, an adaptation to different materials to be bent metal plates B is made possible by the exchange of press shoes 1.1 and 4 respectively.
  • tuning the material combination press shoes / sheet metal plate it is advantageous to choose the coefficient of friction so that a slip resistance is achieved or a good lubricity depending on the bending contour or sheet material, plate thickness or the like.
  • the row of forming dies 3 is arranged for the bending operation with the associated drive means on top of the sheet metal plate B, while the rows of mold punches 1 are arranged for setting the curvature under the underside of the sheet metal plate B.
  • the control device 5 By means of the control device 5, the adjustment of the die 1 to the predetermined curvature and the control of the forming dies 3 for the bending process in coordination with each other, for which purpose the controller has a computer unit suitable for programming.
  • the sheet metal bending machine has a measuring system with a measuring sensor which picks up the contour of the sheet during bending and optionally further bending in and feeds its data to the control unit and processes it to adjust the bending data.
  • the control device 5 advantageously comprises a memory device, are stored in the default values for the processing of certain types of products and are easily retrievable for the operator.
  • the clamping device 10 may also be coupled to the control device 5 in order to release the clamping arrangement 12 during the feeding or removal of the metal sheet B and to clamp it during machining during the bending process and the edge processing.
  • the feeding device 20 for the metal plate B is also connected to the control device 5 and controlled by it.
  • the clamping device 10 results in an unambiguous definition of the metal plate B, so that the bending over the rows of provided with the press shoes 1.1 mold punch 1 can be performed with stable alignment and high accuracy.
  • the support 11 with its front side provides a clear reference position for the setting of the die 1 and the above predetermined curvature of the metal plate B, wherein the respective thickness of the metal plate B is taken into account in the control device 5 for the required application of force.
  • the bending and, with appropriate training, the desired shape of the sheet such as a cylindrical tube shape, easily and accurately on the means of the control or regulation predetermined adjustment of the hydraulic or pneumatic actuating cylinder by means of a segment bending processing and end position of the rows of mold punches 1, whereby different settings are easily and accurately made possible.
  • the rows of mold punches 1 are set with their end faces at the same height or the same distance from the respective surface of the metal sheet B, while the distance from row to row to the edge of the machined Sheet increasingly towards along a straight line or convex curved outward curve can increase.
  • the individual rows of the forming dies 1 with their end faces or press shoes 1.1 come into contact with the sheet metal edge in succession with the relevant surface of the sheet, with the lever arm between the relevant row of the forming dies 1 and the row the forming punch 3 increasingly shortened and thus increase the applied bending forces.
  • the forming dies 3 are designed for higher forces than the mold punches 1, since they are also stressed more dynamically.
  • a press shoe 4 can be assigned a plurality of forming dies 3 with hydraulic or pneumatic drives, so that the number of further press shoes 4 in this case is less than the number of forming dies 3.
  • the total number of forming dies 3 in a row can be less than the number of mold dies 1 in a row, whereby the dynamic control of the forming dies 3 favors and wear parts are reduced.
  • the row of forming dies 3 is at most as far away from the sheet edge as the row of forming dies 1 lying closest thereto.
  • control device 5 By means of the control device 5, the control or regulation during bending or bending on the properties of different materials of the tool of the metal plate B can be suitably adjusted.
  • FIG. 3 A similar embodiment of a longitudinal edge processing device as in Fig. 2 is in Fig. 3 shown.
  • the bending device is equipped with only two rows of upper adjusting cylinders 2 and mold dies 1 with press shoes 1.1, while the lower mold assembly accordingly Fig. 2 is executed.
  • the lower mold assembly with its press shoes 4 is opposite the edge next upper mold assembly to the longitudinal edge of the sheet B out to perform the bending and optionally further bending of the sheet B.
  • the control device 5 and the feeding device 20 and the support 14, which in Fig. 3 not shown, can be done accordingly Fig. 2 be executed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The machine has hydraulically or pneumatically driven form temples (3) arranged at a side, which is opposite to the form temples, of a metal sheet (B), to bend the metal sheet into a contour, which is adjusted by forming tool temples (1). Actuators are designed as a servo-jack (2) and the form temples are arranged in a row within an area of end sections of the metal sheet bordering at edges of the metal sheet. A clamping device (10) is provided for the metal sheet, which is arranged parallel to a row of the tool temples that are isolated from the metal sheet edges.

Description

Die Erfindung bezieht sich auf eine Längsrandbearbeitungsvorrichtung für Bleche, insbesondere bei der Rohrherstellung, mit einer Einspannvorrichtung und einer Biegevorrichtung mit unterer und oberer Formwerkzeuganordnung, die zum Anbiegen des Längsrandes ausgebildet sind, wobei die untere und die obere Formwerkzeuganordnung über die gesamte Länge des Längsrandes des Bleches erstreckt sind und von denen zumindest die obere oder die untere Formwerkzeuganordnung zum Ausführen des Anbiegeprozesses in vertikaler Richtung bezüglich der Blechplatte verstellbar und mit einstellbarer Biegekraft in Verstellrichtung beaufschlagbar ist.The invention relates to a longitudinal edge processing device for sheets, in particular in the production of pipes, with a clamping device and a bending device with lower and upper mold assembly, which are formed for bending the longitudinal edge, wherein the lower and the upper mold assembly over the entire length of the longitudinal edge of the sheet are extended and of which at least the upper or the lower mold assembly for carrying out the bending process in the vertical direction with respect to the metal plate adjustable and can be acted upon with adjustable bending force in the adjustment.

Eine Längsrandbearbeitungsvorrichtung für Bleche dieser Art, insbesondere bei der Rohrherstellung, zeigt die DE 25 10 488 A1 . Bei dieser bekannten Längsrandbearbeitungsvorrichtung in Form einer hydraulischen Blechbiegepresse erstrecken sich ein Unterwerkzeug und ein Oberwerkzeug über die gesamte Länge eines Längsrandes mit oder ohne Unterbrechung.A longitudinal edge processing device for sheets of this type, especially in the production of pipes, shows the DE 25 10 488 A1 , In this known longitudinal edge processing device in the form of a hydraulic sheet bending press, a lower tool and an upper tool extend over the entire length of a longitudinal edge with or without interruption.

Eine weitere Längsrandbearbeitungsvorrichtung für Bleche insbesondere bei der Rohrfertigung ist in der DE 23 65 515 A1 angegeben. Bei dieser bekannten Längsrandbearbeitungsvorrichtung können sowohl gerade als auch der schrägen Schnitte durchgeführt werden, z. B. eine V- oder X-Formung für eine Längsschweißnaht des fertig gebogenen Rohres, sowie Biegevorgänge auf einem gemeinsamen Tisch vorgenommen werden. Zum Bearbeiten der Längskante wird der Tisch mit einer aufgespannten Blechplatte an einer Hobeleinrichtung vorbei geführt. Danach gelangen die Längskanten des Bleches in den Bereich eines Vorbiegeaggregates und daraufhin in ein Fertigbiegeaggregat. Dabei wird die gewünschte Anbiegung mittels Rollenpaaren durchgeführt wird. Durch den Anstelldruck der Rollen kann sich in der Randzone ein Auswalzen bzw. ein Quetschen ergeben, wie in dieser Druckschrift (auf Seite 3) ebenfalls ausgeführt ist. Da die Anbiegevorrichtung mit oberer und unterer Rolle an der Längskante vorbeigeführt wird, wird zudem eine Ausrichtung im Blech vorhandener Wellen nicht erreicht. Auch sind mit derartigen Rollen dickwandige Stahlbleche schwer biegbar.Another longitudinal edge processing device for sheets, especially in the pipe production is in the DE 23 65 515 A1 specified. In this known longitudinal edge processing device both straight and oblique cuts can be performed, for. B. a V or X-shaping for a longitudinal weld of the finished bent pipe, and bending operations are carried out on a common table. To edit the longitudinal edge of the table is guided with a clamped sheet metal plate on a planing device over. After that, the longitudinal edges of the sheet pass into the area of a pre-bending unit and then into a finish-bending unit. The desired bending is carried out by means of pairs of rolls. Due to the contact pressure of the rollers, a rolling out or a pinching can result in the edge zone, as is also carried out in this publication (on page 3). Since the bender with upper and lower roller is guided past the longitudinal edge, an alignment in the sheet existing waves is also not achieved. Even with such roles thick-walled steel sheets are difficult to bend.

Eine Längsrandbearbeitungsvorrichtung für Bleche zur Rohrherstellung mit einer Rollen-Anbiegevorrichtung und Kantenbearbeitungseinrichtung zeigt auch die EP 0 056376 B.A longitudinal edge processing apparatus for tubes for tube production with a roller bending device and edge processing device also shows the EP 0 056376 B.

Eine weitere Biegevorrichtung für Ränder von Blechplatten ist in der EP 0 906 161 B1 gezeigt, wobei keine Kantenbearbeitungsvorrichtung vorgesehen ist, die für eine Rohrherstellung geeignet wäre.Another bending device for edges of sheet metal is in the EP 0 906 161 B1 shown, with no edge processing device is provided, which would be suitable for a pipe production.

Auch bei in den US 4,430,872 A und EP 0 109 031 A2 gezeigten Biegevorrichtungen für Blechplatten ist keine Kantenbearbeitung vorgesehen.Also in the US 4,430,872 A and EP 0 109 031 A2 shown bending devices for sheet metal plates no edge processing is provided.

Bei einer in der DE 24 02 190 A1 gezeigten Blechbiegemaschine, bei der ebenfalls keine Kantenbearbeitung vorgesehen ist, sind über der Oberseite und der Unterseite einer über eine Tragevorrichtung zugeführten Blechplatte flächig mehrere Reihen von zur unteren oder oberen Außenfläche des Bleches hin gerichteten Stempeln angeordnet, die in verschiedenen Abständen von der Blechaußenfläche einstellbar sind. Die Stempel auf der Oberseite und Unterseite des Bleches sind dabei jeweils in mindestens drei Reihen angeordnet, wobei jeder Reihe auf der Oberseite eine Reihe auf der Unterseite gegenüberliegt und die Abstände zwischen den Reihen einstellbar sind. Insbesondere dicke Bleche sind auf diese Weise nur mit erheblichem Aufwand zu biegen.At one in the DE 24 02 190 A1 shown plate bending machine, in which also no edge processing is provided, are above the top and bottom a plurality of rows directed towards the lower or upper outer surface of the sheet through a sheet metal plate supplied via a support device, which are arranged at different distances from the sheet outer surface. The stamps on the top and bottom of the sheet are each arranged in at least three rows, each row on the top opposite a row on the bottom and the distances between the rows are adjustable. In particular, thick sheets are to be bent in this way only with considerable effort.

Eine weitere Rohrbiegemaschine ist in der DE 42 15 807 A1 sowie in der EP 0 051 554 A2 gezeigt. Die EP 0 051 554 A2 und die DE 24 55 521 A1 zeigen Beispiele für hydraulische Blechbiegepressen.Another pipe bending machine is in the DE 42 15 807 A1 as well as in the EP 0 051 554 A2 shown. The EP 0 051 554 A2 and the DE 24 55 521 A1 show examples of hydraulic sheet metal bending presses.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Längsrandbearbeitungsvorrichtung der eingangs genannten Art bereit zu stellen, die die Bearbeitung von Blechplatten, beispielsweise für die Herstellung von Rohren vereinfacht.The present invention has for its object to provide a longitudinal edge processing device of the type mentioned, which simplifies the processing of metal plates, for example, for the production of pipes.

Diese Aufgabe wird mit den Merkmalen des Anspruches 1 gelöst. Hierbei ist bei einer gattungsgämessen Längsrandbearbeitungsvorrichtung vorgesehen, dass für die Bearbeitung des Längsrandes des Bleches eine Kantenbearbeitungseinrichtung vorhanden ist und dass die obere und/oder die untere Formwerkzeuganordnung bezüglich des Längsrandes mehrere parallele Reihen von Segmenten aufweist, die getrennt ansteuerbar sind.This object is achieved with the features of claim 1. In this case, it is provided in a gattungsgämessen longitudinal edge processing device that for the processing of the longitudinal edge of the sheet edge processing device is present and that the upper and / or the lower mold assembly with respect to the longitudinal edge has a plurality of parallel rows of segments which are controlled separately.

Vorteil der so ausgebildeten Längsrandbearbeitungsvorrichtung ist, dass sich das Anbiegen und Bearbeiten der Kanten in derselben Anlage mit relativ wenig Aufwand zuverlässig durchführen lassen, auch wenn dicke Bleche vorliegen, wie sie für Rohre großen Durchmessers (z. B. größer als 50 cm) verwendet werden.The advantage of the longitudinal edge machining device formed in this way is that the bending and machining of the edges in the same installation can be carried out reliably with relatively little effort, even if thick sheets are present, such as those used for pipes of large diameter (eg larger than 50 cm) ,

Ein für die Steuerung des Biegeprozesses vorteilhafter Aufbau besteht darin, dass die untere und/oder die obere Formwerkzeuganordnung zum Verstellen an eine hydraulische Verstellvorrichtung angeschlossen ist/sind.An advantageous for the control of the bending process construction is that the lower and / or the upper mold assembly is connected for adjusting to a hydraulic adjusting device / are.

Für den Aufbau und die Funktion sind des Weiteren die Merkmale von Vorteil, dass die untere und/oder die obere Formwerkzeuganordnung in zum Längsrand des Bleches paralleler Richtung aus mehreren Segmenten aufgebaut ist/sind.Furthermore, the features of the structure and the function are advantageous in that the lower and / or the upper die arrangement is / are constructed in a direction parallel to the longitudinal edge of the metal sheet from a plurality of segments.

Eine gute Anpassung an unterschiedliche Bleche und Biegeradien ergibt sich dadurch, dass die Segmente der unteren Formwerkzeuganordnung jeweils einen Stellzylinder und einen Formwerkzeugstempel mit Pressschuh und die Segmente der oberen Formwerkzeuganordnung jeweils einen weiteren Stellzylinder und einen weiteren Formstempel mit einem weiteren Pressschuh aufweisen. Dabei kann die Ausbildung derart sein, dass die Pressschuhe austauschbar sind.A good adaptation to different sheets and bending radii results from the fact that the segments of the lower mold assembly each have a setting cylinder and a mold punch with press shoe and the segments of the upper mold assembly each having a further actuating cylinder and another forming die with another press shoe. The training may be such that the press shoes are interchangeable.

Ein für die Bearbeitungsvorgänge vorteilhafter Aufbau besteht darin, dass zum Aufnehmen des plattenförmigen Bleches eine Auflage vorhanden ist und dass eine Zuführvorrichtung vorgesehen ist, mittels deren das Blech über die Auflage in Richtung quer zum Blech-Längsrand zu der neben der Auflage angeordneten Biegevorrichtung führbar ist.An advantageous construction for the processing operations is that for receiving the plate-shaped sheet a support is provided and that a feeding device is provided, by means of which the sheet over the support in the direction transverse to the sheet longitudinal edge can be guided to the arranged next to the support bending device.

Die Blechbearbeitung wird ferner dadurch begünstigt, dass die Kantenbearbeitungsvorrichtung bezüglich des Längsrandes des zu bearbeitenden Bleches außerhalb der Biegevorrichtung angeordnet ist, wobei ein Bearbeitungswerkzeug entlang dem Längsrand verfahrbar ist. Hierdurch kann die geometrische Ausdehnung der Anlage relativ platzsparend ausgeführt werden.The sheet metal processing is further facilitated by the fact that the edge processing device is arranged outside the bending device with respect to the longitudinal edge of the sheet to be processed, wherein a processing tool can be moved along the longitudinal edge. As a result, the geometric extension of the system can be carried out relatively space-saving.

Eine vorteilhafte Ausgestaltung für die Kantenbearbeitung besteht darin, dass das Bearbeitungswerkzeug ein Fräswerkzeug ist.An advantageous embodiment for edge processing is that the machining tool is a milling tool.

Ist vorgesehen, dass zusätzlich eine Richtvorrichtung zum Richten wellenförmiger Bleche vorhanden ist, können auch wellenförmige Bleche in derselben Anlage für die weitere Bearbeitung vorbereitet werden. Beispielsweise kann das Richten durch die sich in Längsrichtung über das Blech erstreckende Biegevorrichtung bewirkt werden oder es kann eine zusätzliche Anordnung von Richtmitteln vorgesehen sein.It is envisaged that in addition a straightening device for straightening wave-shaped sheets is available, wave-shaped sheets can be prepared in the same system for further processing. For example, the straightening may be effected by the bending device extending longitudinally over the sheet, or an additional arrangement of straightening means may be provided.

Eine automatische Durchführung des Biegeprozesses wird dadurch zuverlässig erreicht, dass die Einspannvorrichtung und die Biegevorrichtung an eine gemeinsame Steuerungseinrichtung angeschlossen sind, die zur aufeinander abgestimmten Einspannung und Biegesteuerung ausgebildet ist.An automatic implementation of the bending process is achieved reliably in that the clamping device and the bending device are connected to a common control device, which is designed for coordinated clamping and bending control.

Weiterhin tragen die Maßnahmen, dass auch die Zuführvorrichtung und die Kantenbearbeitungsvorrichtung an die Steuerungseinrichtung angeschlossen sind, zu einer vereinfachten automatischen Bearbeitung bei.Furthermore, the measures that also the feeding device and the edge processing device are connected to the control device contribute to a simplified automatic processing.

Eine vorteilhafte weitere Ausgestaltung für die Bearbeitung besteht darin, dass die Biegevorrichtung zum Anbiegen ausgebildet ist, und dass die Einspanneinrichtung eine Widerlagereinrichtung aufweist, die zum Bewirken der für das Anbiegen aufzubringenden Gegenkräfte ausgebildet ist, wobei die Blechspannvorrichtung mit Presszylindern und Pressschuhen so dimensioniert ist, dass ein Fixieren des Bleches sowohl beim Fräsen, Hobeln oder Schneiden als auch beim Anbiegen und/oder Richten sichergestellt ist.An advantageous further embodiment for the machining is that the bending device is designed for bending, and that the clamping device has an abutment device, which is designed to effect the counterforces to be applied for the bending, wherein the sheet clamping device is dimensioned with pressing cylinders and press shoes so that a fixing of the sheet both during milling, planing or cutting and when bending and / or straightening is ensured.

Anstelle eines Fräswerkzeugs für die Kantenbearbeitung kann auch ein Hobelwerkzeug oder ein anderes Schneidwerkzeug (z. B. Säge) vorgesehen sein.Instead of a milling tool for edge processing, a planing tool or another cutting tool (eg saw) may also be provided.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine schematische Ansicht einer Längsrandbearbeitungsvorrichtung in Querrichtung zu einer Blech-Längskante mit einem ersten Ausführungsbeispiel für eine Anbiegevorrichtung,
Fig. 2
ein weiteres Ausführungsbeispiel der Längsrandbearbeitungsvorrichtung in einer Ansicht quer zu einer Blech-Längskante mit einer anderen Ausbildung der Biegevorrichtung und
Fig. 3
ein weiteres Ausführungsbeispiel der Längsrandbearbeitungsvorrichtung in einer Ansicht quer zu einem Blech-Längsrand mit einer gegenüber Fig. 2 abgewandelten Biegevorrichtung.
The invention will be explained in more detail by means of embodiments with reference to the drawings. Show it:
Fig. 1
1 is a schematic view of a longitudinal edge processing device in the transverse direction to a sheet-metal longitudinal edge with a first embodiment of a bending device,
Fig. 2
a further embodiment of the longitudinal edge processing device in a view transverse to a longitudinal sheet-metal edge with another embodiment of the bending device and
Fig. 3
a further embodiment of the longitudinal edge processing device in a view transverse to a longitudinal sheet edge with an opposite Fig. 2 modified bending device.

Fig. 1 zeigt eine Längsrandbearbeitungsvorrichtung für Bleche B, wie sie insbesondere für die Rohrherstellung zur Bearbeitung von Längsrändern vor einem endgültigen Biegeprozess verwendet wird. Ein ebenes, plattenförmiges Blech B wird über eine Auflage 14 mittels einer Zuführvorrichtung 20 in Querrichtung zu ihrem einen Längsrand einer Bearbeitungsstelle zugeführt. In der Bearbeitungsposition befindet sich der Längsrandabschnitt im Bereich einer Anbiegevorrichtung mit einer unteren Formwerkzeugeinheit 7 und einer oberen Formwerkzeugeinheit 8, wobei die untere Formwerkzeugeinheit 7 auf ihrer der betreffenden flachen Blechseite zugekehrten oberen Seite eine Formmulde 7.1 und die obere Formwerkzeugeinheit 8 in ihrem der betreffenden flachen Blechseite zugekehrten Endbereich ein an einem Formteilträger 8.2 aufgenommenes konvexes Formteil 8.1 trägt. Die Formwerkzeugeinheiten 7 und 8, die in Längsrichtung durchgehend oder segmentiert sein können, erstrecken sich parallel zum Längsrand des Bleches und sind an einer jeweiligen Stelleinheit 9, 9' verstellbar gelagert, mit der sie jeweils senkrecht zur Blechebene verstellt werden können, um eine Anbiegung des Blechrandes vorzunehmen. Fig. 1 shows a longitudinal edge processing device for sheets B, as used in particular for the production of pipes for processing of longitudinal edges before a final bending process. A flat, plate-shaped sheet B is fed via a support 14 by means of a feed device 20 in the transverse direction to its one longitudinal edge of a processing station. In the machining position, the longitudinal edge portion is located in the region of a bending device with a lower mold unit 7 and an upper mold unit 8, wherein the lower mold unit 7 on its upper side facing the sheet metal side concerned a mold cavity 7.1 and the upper mold unit 8 in their respective flat sheet side facing end portion receives a recorded on a molded part 8.2 8.2 convex molded part 8.1. The molding units 7 and 8, which may be continuous or segmented in the longitudinal direction, extend parallel to the longitudinal edge of the sheet and are adjustably mounted on a respective adjusting unit 9, 9 ', with which they can be adjusted perpendicular to the sheet metal plane to a bend of the Sheet edge to make.

Außerhalb des Blech-Längsrandes ist ferner eine Kantenbearbeitungseinrichtung 30 angeordnet, die an den Blechrand verfahrbar ist oder der das Blech B mittels der Zuführvorrichtung 20 zuführbar ist. Zur Bearbeitung der oberen und/oder unteren Blechkante ist das Bearbeitungswerkzeug der Kantenbearbeitungseinrichtung 30 entsprechend geformt, um z. B. eine Schweißnahtvorbereitung in V-, Y- oder X-Form herzustellen. Das Bearbeitungswerkzeug ist vorzugsweise ein Fräswerkzeug, kann aber auch ein Hobelwerkzeug oder anderes Schneidewerkzeug sein. Zur Bearbeitung kann der Aufbau so ausgeführt sein, dass das Bearbeitungswerkzeug entlang der Blech-Längskante bei ruhendem Blech B bewegt wird oder das Blech B entlang dem ruhenden Bearbeitungswerkzeug bewegt wird.Outside the sheet longitudinal edge, an edge processing device 30 is further arranged, which can be moved to the sheet edge or the sheet B by means of the feeder 20 can be fed. For processing the upper and / or lower sheet edge, the machining tool of the edge processing device 30 is shaped accordingly to z. B. to prepare a weld preparation in V, Y or X form. The machining tool is preferably a milling tool, but may also be a planing tool or other cutting tool. For machining, the structure may be designed so that the machining tool along the sheet longitudinal edge is moved at resting sheet B or the sheet B is moved along the stationary machining tool.

Ferner ist eine Einspannvorrichtung 10 vorgesehen, mit der das plattenförmige Blech B gegen die Auflage 14 oder eine andere Abstützung 11 (vgl. Fig. 2 und 3) festspannbar ist, um die Längsrandbearbeitung stabil und genau durchführen zu können. Die Einspannvorrichtung ist z. B. mit pneumatisch oder hydraulisch arbeitenden Presszylindem und Pressschuhen ausgerüstet und so dimensioniert, dass ein Fixieren des Bleches B sowohl bei Bearbeitung mit dem Fräs-, Hobel- oder Schneidwerkzeug als auch beim Anbiegen sichergestellt ist.Further, a clamping device 10 is provided with which the plate-shaped sheet B against the support 14 or another support 11 (see. Fig. 2 and 3 ) is clamped to perform the longitudinal edge machining stable and accurate. The clamping device is z. B. equipped with pneumatically or hydraulically operated Presszylindem and press shoes and dimensioned so that a fixing of the sheet B is ensured both when working with the milling, planing or cutting tool and when bending.

Die Steuerung der Zuführvorrichtung 20, der Einspannvorrichtung 10 und der Anbiegevorrichtung erfolgt mittels einer gemeinsamen Steuerungseinrichtung 5 abgestimmt aufeinander, wobei auch die Steuerung der Kantenbearbeitungseinrichtung 30 mit in die Steuerung durch die Steuerungseinrichtung 5 einbezogen sein kann. Zunächst wird für die Bearbeitung das Blech B mittels der Zuführvorrichtung an die Bearbeitungsstelle der Kantenbearbeitungseinrichtung 30 geführt und dann die Einspannvorrichtung 10 betätigt. Sodann erfolgt die Steuerung der Anbiegevorrichtung. Anschließend kann die so an ihrem Rand bearbeitete Blechplatte gedreht und entlang ihrem anderen Längsrand mit derselben Biegevorrichtung und Kantenbearbeitungseinrichtung entsprechend bearbeitet werden. Alternativ kann entlang dem anderen Blech-Längsrand eine entsprechende Randbearbeitungsvorrichtung vorgesehen sein, so dass auch eine parallele entsprechende Bearbeitung der beiden Längsränder gleichzeitig oder zeitversetzt durchgeführt werden kann. Nach der Längsrandbearbeitung kann das Blech B dann dem weiteren Biegeprozess zugeführt werden, beispielsweise in einer getrennten Anlage.The control of the feeding device 20, the clamping device 10 and the bending device is carried out by means of a common control device 5 coordinated with each other, wherein the control of the edge processing device 30 may be included in the control by the control device 5. First, for the processing, the sheet B is guided by means of the feeding device to the processing point of the edge processing device 30 and then the clamping device 10 is actuated. Then, the control of the bending device takes place. Subsequently, the metal plate thus processed at its edge can be rotated and processed along its other longitudinal edge with the same bending device and edge processing device accordingly. Alternatively, a corresponding edge processing device can be provided along the other sheet longitudinal edge, so that a parallel corresponding processing of the two longitudinal edges can be performed simultaneously or with a time delay. After the longitudinal edge machining, the sheet B can then be supplied to the further bending process, for example in a separate plant.

In Fig. 2 ist ein weiteres Ausführungsbeispiel für eine Längsrandbearbeitungsvorrichtung gezeigt. Auch hierbei ist eine Kantenbearbeitungseinrichtung 30 beispielsweise mit einem Fräswerkzeug, einem Hobelwerkzeug oder einem anderen Schneidwerkzeug entsprechend dem vorangegangenen Ausführungsbeispiel vorhanden. Auch eine Zuführvorrichtung 20 kann entsprechend ausgebildet und an eine Steuerungseinrichtung 5 angeschlossen sein. Die Einspannvorrichtung 10 und eine Biegevorrichtung, mit der auch eine Anbiegung erfolgen kann, sind gegenüber dem ersten Ausführungsbeispiel abgewandelt.In Fig. 2 a further embodiment of a longitudinal edge processing device is shown. Again, an edge processing device 30, for example with a milling tool, a planing tool or other cutting tool according to the previous embodiment. Also, a feeder 20 may be formed and connected to a control device 5 accordingly. The clamping device 10 and a bending device, with which a bending can also take place, are modified in comparison to the first exemplary embodiment.

Die Fig. 2 zeigt eine in einer Blechbiegemaschine angeordnete Blechplatte B, über deren Oberseite mehrere Reihen von Formwerkzeugstempeln 1 und unter deren Unterseite eine Reihe von Formstempeln 3 angeordnet sind. Die Blechplatte B, die über eine Auflage 14 zugeführt wird, ist in der Einspannvorrichtung 10 mit einer Abstützung 11 auf der Unterseite und einer Spannanordnung 12 auf der Oberseite stabil festgelegt, wobei die Spannanordnung 12 mittels einer vorzugsweise hydraulischen oder pneumatischen Betätigungsvorrichtung 13 gegen die Oberseite der Blechplatte B gegenüber der Abstützung 11 angedrückt wird.The Fig. 2 shows a arranged in a plate bending machine sheet metal plate B, above the top of a plurality of rows of dies 1 and under the bottom of a series of dies 3 are arranged. The metal plate B, which is supplied via a support 14, is fixed stably in the clamping device 10 with a support 11 on the underside and a clamping arrangement 12 on the upper side, wherein the clamping arrangement 12 by means of a preferably hydraulic or pneumatic actuator 13 against the top of Sheet metal B is pressed against the support 11.

Die der Oberseite der Blechplatte B zugekehrten Endabschnitte der Formwerkzeugstempel 1 sind mit Pressschuhen 1.1 versehen, deren Enden konisch angeschrägt oder konvex nach außen gerundet sind, so dass sie den Biegevorgang entsprechend der eingestellten Krümmung begünstigen. Auch der zur Unterseite der Blechplatte B gerichtete Endabschnitt der betreffenden Formstempel 3 ist mit einem weiteren Pressschuh 4 versehen, dessen zu der unteren Oberfläche der Blechplatte B hin gerichtete Stirnfläche ebenfalls konisch abgeschrägt oder konvex nach außen gerundet ist, so dass zu Beginn der Biegebearbeitung die flache Blechplatte B lediglich punktartig oder linienartig auf dem Pressschuh 4 aufliegt und beim Biegevorgang eine Neigungsänderung der unteren Blechoberfläche relativ zur Stirnseite des Pressschuhs 4 ungehindert fortschreiten kann, wodurch der Biegevorgang zusätzlich begünstigt wird. Die Formwerkzeugstempel 1 und die Formstempel 3 werden vorzugsweise mittels hydraulisch angetriebener Stellglieder, insbesondere Stellzylinder 2 bzw. 6, zur Einstellung auf die vorgegebene Krümmung einerseits und für den Biegevorgang andererseits betätigt, wobei die Steuerung oder Regelung der Betätigung mittels der Steuerungseinrichtung 5 erfolgt. Anstelle eines hydraulischen Antriebs kann insbesondere für die Formstempel 3 ein pneumatischer Antrieb vorgesehen sein. Sind die Pressschuhe 1.1 und/oder weiteren Pressschuhe 4 bei einer Ausführungsvariante auswechselbar an den Endabschnitten der Formwerkzeugstempel 1 bzw. der Formstempel 3 angebracht, so können Pressschuhe 1.1, 4 mit unterschiedlich geformter Stirnseite leicht gegeneinander ausgetauscht werden, oder sie können bei Verschleiß einfach ersetzt werden. Auch wird durch den Austausch von Pressschuhen 1.1 bzw. 4 eine Anpassung an unterschiedliche Materialien zu biegender Blechplatten B ermöglicht. Bei der Abstimmung der Materialpaarung Pressschuhe/Blechplatte ist es vorteilhaft, den Reibwert so zu wählen, dass eine Rutschhemmung erreicht wird oder aber eine gute Gleitfähigkeit je nach Biegekontur oder Blechmaterial, Blechstärke oder dgl.The top of the metal plate B facing end portions of the die 1 are provided with press shoes 1.1, the ends of which are tapered conical or convex rounded to the outside, so that they favor the bending operation according to the set curvature. Also directed to the underside of the metal plate B end portion of the respective forming dies 3 is provided with a further press shoe 4, which directed to the lower surface of the metal plate B towards end face is also tapered or convex rounded to the outside, so that at the beginning of the bending work the flat Sheet metal B rests only point-like or line-like on the press shoe 4 and during bending a change in inclination of the lower sheet surface relative to the end face of the press shoe 4 can proceed unhindered, whereby the bending process is additionally favored. The forming dies 1 and the forming dies 3 are preferably operated by means of hydraulically driven actuators, in particular actuating cylinder 2 or 6, for setting to the predetermined curvature on the one hand and for the bending operation on the other hand, wherein the control or regulation of the actuation by means of the control device 5 takes place. Instead of a hydraulic drive, in particular for the forming dies 3, a pneumatic drive can be provided. If the press shoes 1.1 and / or further press shoes 4 are exchangeably attached to the end sections of the forming dies 1 or the forming dies 3 in one embodiment, press shoes 1.1, 4 with differently shaped end faces can easily be exchanged for one another, or they can be easily replaced when worn , Also, an adaptation to different materials to be bent metal plates B is made possible by the exchange of press shoes 1.1 and 4 respectively. When tuning the material combination press shoes / sheet metal plate, it is advantageous to choose the coefficient of friction so that a slip resistance is achieved or a good lubricity depending on the bending contour or sheet material, plate thickness or the like.

Bei einer alternativen Ausgestaltung ist vorgesehen, dass die Reihe der Formstempel 3 für den Biegevorgang mit der zugehörigen Antriebseinrichtung über der Oberseite der Blechplatte B angeordnet ist, während die Reihen der Formwerkzeugstempel 1 für die Einstellung der Krümmung unter der Unterseite der Blechplatte B angeordnet sind.In an alternative embodiment, it is provided that the row of forming dies 3 is arranged for the bending operation with the associated drive means on top of the sheet metal plate B, while the rows of mold punches 1 are arranged for setting the curvature under the underside of the sheet metal plate B.

Mittels der Steuerungseinrichtung 5 können die Einstellung der Formwerkzeugstempel 1 auf die vorgegebene Krümmung und die Ansteuerung der Formstempel 3 für den Biegevorgang in Abstimmung aufeinander erfolgen, wozu die Steuerung eine für eine Programmierung geeignete Rechnereinheit aufweist. Vorteilhaft weist die Blechbiegemaschine ein Messsystem mit einer Messsensorik auf, welches die Kontur des Bleches beim Anbiegen und gegebenenfalls weiteren Einbiegen aufnimmt und dessen Daten der Steuerungseinrichtung zugeführt und in dieser verarbeitet werden, um die Biegedaten anzupassen. Ferner umfasst die Steuerungseinrichtung 5 vorteilhaft eine Speichereinrichtung, in der Vorgabewerte für die Bearbeitung bestimmter Produkttypen hinterlegt und für den Bediener leicht abrufbar sind. Mit der Steuerungseinrichtung 5 kann auch die Einspannvorrichtung 10 gekoppelt sein, um die Spannanordnung 12 beim Zuführen oder Abnehmen der Blechplatte B freizugeben und beim Bearbeiten während des Biegevorgangs und der Kantenbearbeitung einzuspannen. Für einen automatisierten Ablauf ist weiterhin vorteilhaft vorgesehen, dass auch die Zuführvorrichtung 20 für die Blechplatte B an die Steuerungseinrichtung 5 angeschlossen und von dieser gesteuert wird. Damit kann die Zuführung der Blechplatte B zu der Bearbeitungsstelle für das Biegen und/oder Bearbeiten der Kante(n) mittels der Steuerungseinrichtung 5, abgestimmt auf den Biegevorgang bzw. die Kantenbearbeitung und die Einspannung, erfolgen. Die Einspannvorrichtung 10 ergibt eine eindeutige Festlegung der Blechplatte B, so dass die Biegung über die Reihen der mit den Pressschuhen 1.1 versehenen Formwerkzeugstempel 1 bei stabiler Ausrichtung und mit hoher Genauigkeit durchgeführt werden kann. Dabei bietet die Abstützung 11 mit ihrer Stirnseite eine eindeutige Bezugslage für die Einstellung der Formwerkzeugstempel 1 und die darüber vorgegebene Krümmung der Blechplatte B, wobei die jeweilige Stärke der Blechplatte B in der Steuerungseinrichtung 5 zur erforderlichen Kraftbeaufschlagung mit berücksichtigt wird.By means of the control device 5, the adjustment of the die 1 to the predetermined curvature and the control of the forming dies 3 for the bending process in coordination with each other, for which purpose the controller has a computer unit suitable for programming. Advantageously, the sheet metal bending machine has a measuring system with a measuring sensor which picks up the contour of the sheet during bending and optionally further bending in and feeds its data to the control unit and processes it to adjust the bending data. Furthermore, the control device 5 advantageously comprises a memory device, are stored in the default values for the processing of certain types of products and are easily retrievable for the operator. The clamping device 10 may also be coupled to the control device 5 in order to release the clamping arrangement 12 during the feeding or removal of the metal sheet B and to clamp it during machining during the bending process and the edge processing. For an automated process, it is furthermore advantageously provided that the feeding device 20 for the metal plate B is also connected to the control device 5 and controlled by it. Thus, the feeding of the metal plate B to the processing point for bending and / or processing of the edge (s) by means of the control device 5, matched to the bending process or the edge processing and the clamping, take place. The clamping device 10 results in an unambiguous definition of the metal plate B, so that the bending over the rows of provided with the press shoes 1.1 mold punch 1 can be performed with stable alignment and high accuracy. In this case, the support 11 with its front side provides a clear reference position for the setting of the die 1 and the above predetermined curvature of the metal plate B, wherein the respective thickness of the metal plate B is taken into account in the control device 5 for the required application of force.

Mit der Biegemaschine kann das Anbiegen und, bei entsprechender Ausbildung, die gewünschte Form des Bleches, beispielsweise eine zylindrische Rohrform, einfach und genau über die mittels der Steuerung bzw. Regelung vorgegebene Einstellung der hydraulischen oder pneumatischen Stellzylinder mittels einer Segmentbiegebearbeitung und Endstellung der Reihen der Formwerkzeugstempel 1 erreicht werden, wobei unterschiedliche Einstellungen einfach und genau ermöglicht werden. Die Reihen der Formwerkzeugstempel 1 sind dabei mit ihren Stirnseiten auf gleiche Höhenlage bzw. gleichen Abstand von der betreffenden Oberfläche der Blechplatte B eingestellt, während der Abstand von Reihe zu Reihe zur Kante des bearbeiteten
Blechabschnitts hin zunehmend entlang einer Geraden oder konvex nach außen gekrümmten Kurve zunehmen kann. Beim Biegen des Bleches mittels der Formstempel 3 treten somit die einzelnen Reihen der Formwerkzeugstempel 1 mit ihren Stirnseiten bzw. Pressschuhen 1.1 zur Blechkante hin nacheinander mit der betreffenden Oberfläche des Blechs in Kontakt, wobei sich der Hebelarm zwischen der betreffenden Reihe der Formwerkzeugstempel 1 und der Reihe der Formstempel 3 zunehmend verkürzt und damit die aufzubringenden Biegekräfte erhöhen. Vorzugsweise sind die Formstempel 3 für höhere Kräftebeanspruchungen ausgelegt als die Formwerkzeugstempel 1, da sie auch dynamisch stärker beansprucht werden. Einem Pressschuh 4 können mehrere Formstempel 3 mit hydraulischen bzw. pneumatischen Antrieben zugeordnet sein, so dass die Anzahl der weiteren Pressschuhe 4 in diesem Falle geringer ist als die Anzahl der Formstempel 3. Auch kann insgesamt die Anzahl der Formstempel 3 in einer Reihe geringer sein als die Anzahl der Formwerkzeugstempel 1 in einer Reihe, wodurch die dynamische Steuerung der Formstempel 3 begünstigt und auch Verschleißteile verringert werden. Um bis zu der der betreffenden Blechkante am nächsten liegenden Reihe der Formwerkzeugstempel 1 eine zuverlässige Anbiegung oder Biegung durchzuführen, ist die Reihe der Formstempel 3 höchstens so weit von der Blechkante entfernt, wie die dieser am nächsten liegende Reihe der Formwerkzeugstempel 1.With the bending machine, the bending and, with appropriate training, the desired shape of the sheet, such as a cylindrical tube shape, easily and accurately on the means of the control or regulation predetermined adjustment of the hydraulic or pneumatic actuating cylinder by means of a segment bending processing and end position of the rows of mold punches 1, whereby different settings are easily and accurately made possible. The rows of mold punches 1 are set with their end faces at the same height or the same distance from the respective surface of the metal sheet B, while the distance from row to row to the edge of the machined
Sheet increasingly towards along a straight line or convex curved outward curve can increase. When bending the sheet metal by means of the forming dies 3, the individual rows of the forming dies 1 with their end faces or press shoes 1.1 come into contact with the sheet metal edge in succession with the relevant surface of the sheet, with the lever arm between the relevant row of the forming dies 1 and the row the forming punch 3 increasingly shortened and thus increase the applied bending forces. Preferably, the forming dies 3 are designed for higher forces than the mold punches 1, since they are also stressed more dynamically. A press shoe 4 can be assigned a plurality of forming dies 3 with hydraulic or pneumatic drives, so that the number of further press shoes 4 in this case is less than the number of forming dies 3. Also, the total number of forming dies 3 in a row can be less than the number of mold dies 1 in a row, whereby the dynamic control of the forming dies 3 favors and wear parts are reduced. In order to carry out a reliable bending or bending up to the row of the forming dies 1 closest to the respective sheet edge, the row of forming dies 3 is at most as far away from the sheet edge as the row of forming dies 1 lying closest thereto.

Mittels der Steuerungseinrichtung 5 kann die Steuerung bzw. Regelung beim Anbiegen bzw. Biegen auf die Eigenschaften unterschiedlicher Materialien des Werkzeugs der Blechplatte B geeignet abgestimmt werden.By means of the control device 5, the control or regulation during bending or bending on the properties of different materials of the tool of the metal plate B can be suitably adjusted.

Eine ähnliche Ausführung einer Längsrandbearbeitungsvorrichtung wie in Fig. 2 ist in Fig. 3 gezeigt. Hierbei ist die Biegevorrichtung mit lediglich zwei Reihen von oberen Stellzylindern 2 und Formwerkzeugstempeln 1 mit Pressschuhen 1.1 ausgestattet, während die untere Formwerkzeuganordnung entsprechend Fig. 2 ausgeführt ist. Die untere Formwerkzeuganordnung mit ihren Pressschuhen 4 ist gegenüber der Rand nächsten oberen Formwerkzeuganordnung zum Längsrand des Bleches B hin versetzt, um die Anbiegung und gegebenenfalls ein weiteres Biegen des Bleches B durchzuführen. Die Steuerungseinrichtung 5 und die Zuführvorrichtung 20 sowie die Auflage 14, die in Fig. 3 nicht gezeigt sind, können entsprechend Fig. 2 ausgeführt sein.A similar embodiment of a longitudinal edge processing device as in Fig. 2 is in Fig. 3 shown. Here, the bending device is equipped with only two rows of upper adjusting cylinders 2 and mold dies 1 with press shoes 1.1, while the lower mold assembly accordingly Fig. 2 is executed. The lower mold assembly with its press shoes 4 is opposite the edge next upper mold assembly to the longitudinal edge of the sheet B out to perform the bending and optionally further bending of the sheet B. The control device 5 and the feeding device 20 and the support 14, which in Fig. 3 not shown, can be done accordingly Fig. 2 be executed.

Mit den gezeigten Biegevorrichtungen wird ein ungünstiges Quetschen des Blechrandes vermieden, wobei die Blechrandbearbeitung rationell durchführbar ist und auch dicke Bleche von z. B. mehr als 30 mm oder 50 mm für Rohre großen Durchmessers (z. B. größer als 300 mm oder 500 mm) exakt gebogen werden können.With the bending devices shown unfavorable squeezing of the sheet edge is avoided, the sheet edge machining is rationally feasible and thick sheets of z. B. more than 30 mm or 50 mm for pipes of large diameter (eg greater than 300 mm or 500 mm) can be bent exactly.

Claims (11)

  1. Longitudinal edge machining device for metal sheets (B), in particular in the production of pipes, with a clamping device (10) and a bending device with a lower and an upper forming tool arrangement, which are designed for the bending of the longitudinal edge, wherein the lower and upper forming tool arrangements are made to extend over the entire length of the longitudinal edge of the metal sheet (B) and of which at least the upper or the lower forming tool arrangement is adjustable in the vertical direction with respect to the sheet-metal plate (B) for performing the bending process and can be subjected to a variable bending force in the direction of adjustment, characterized in that the longitudinal edge machining device has an edge machining device (30) for the longitudinal edge of the metal sheet (B), and in that the upper and/or lower forming tool arrangement has with respect to the longitudinal edge multiple parallel rows of segments, which can be separately activated.
  2. Longitudinal edge machining device according to Claim 1, characterized in that, for adjusting, the lower and/or upper forming tool arrangement is/are connected to a hydraulic adjusting device.
  3. Longitudinal edge machining device according to Claim 1 or 2, characterized in that the lower and/or upper forming tool arrangement is/are made up of multiple segments in the direction parallel to the longitudinal edge of the metal sheet (B).
  4. Longitudinal edge machining device according to Claim 3, characterized in that the segments of the lower forming tool arrangement respectively have an adjusting cylinder (2) and a forming tool die (1) with a pressing shoe (1.1) and the segments of the upper forming tool arrangement respectively have a further adjusting cylinder (6) and a further forming die (3) with a further pressing shoe (4).
  5. Longitudinal edge machining device according to one of the preceding claims, characterized in that there is a rest (14) for receiving the metal sheet (B) in plate form and in that a feeding device (20) is provided, by means of which the metal sheet (B) can be guided over the rest (14) transversely with respect to the longitudinal edge of the metal sheet to the bending device arranged next to the rest (14).
  6. Longitudinal edge machining device according to one of the preceding claims, characterized in that the edge machining device is arranged outside the bending device with respect to the longitudinal edge of the metal sheet (B) to be machined, a machining tool being movable along the longitudinal edge.
  7. Longitudinal edge machining device according to Claim 6, characterized in that the machining tool is a milling tool.
  8. Longitudinal edge machining device according to one of the preceding claims, characterized in that there is additionally a straightening device for straightening wavy metal sheets (B).
  9. Longitudinal edge machining device according to one of the preceding claims, characterized in that the clamping device (10) and the bending device are connected to a common control device (5), which is designed for coordinated clamping and bending control.
  10. Longitudinal edge machining device according to Claim 9, characterized in that the feeding device (20) and the edge machining device (30) are also connected to the control device (5).
  11. Longitudinal edge machining device according to one of the preceding claims, characterized in that the bending device is designed for bending and in that the clamping device (10) has an abutment device, which is designed for bringing about the counter forces to be applied for the bending, the sheet clamping device with pressing cylinders and pressing shoes being dimensioned such that fixing of the metal sheet (B) is ensured both during the milling, planing or cutting and during the bending and/or straightening.
EP08022540.2A 2008-01-03 2008-12-31 Longitudinal edge machining device for sheet metal Not-in-force EP2077166B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08022540T PL2077166T3 (en) 2008-01-03 2008-12-31 Longitudinal edge machining device for sheet metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202008000121U DE202008000121U1 (en) 2008-01-03 2008-01-03 Bending machine

Publications (2)

Publication Number Publication Date
EP2077166A1 EP2077166A1 (en) 2009-07-08
EP2077166B1 true EP2077166B1 (en) 2013-11-20

Family

ID=39311650

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08022322A Not-in-force EP2077165B1 (en) 2008-01-03 2008-12-23 Sheet metal bending machine
EP08022540.2A Not-in-force EP2077166B1 (en) 2008-01-03 2008-12-31 Longitudinal edge machining device for sheet metal

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08022322A Not-in-force EP2077165B1 (en) 2008-01-03 2008-12-23 Sheet metal bending machine

Country Status (9)

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EP (2) EP2077165B1 (en)
AT (1) ATE457838T1 (en)
DE (2) DE202008000121U1 (en)
DK (1) DK2077165T3 (en)
ES (2) ES2341503T3 (en)
PL (2) PL2077165T3 (en)
PT (1) PT2077165E (en)
RS (1) RS51337B (en)
SI (1) SI2077165T1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7506531B1 (en) * 2007-12-20 2009-03-24 Gm Global Technology Operations, Inc. Dimple-forming tool for projection welding
WO2010118759A2 (en) * 2009-04-16 2010-10-21 Gmbh Siegen Bergrohr Bending press for sheet panels
DE102011053676B4 (en) 2011-09-16 2016-09-08 EISENBAU KRäMER GMBH Tube bending machine
DE102016225986A1 (en) * 2016-12-22 2018-06-28 Bayerische Motoren Werke Aktiengesellschaft Apparatus and method for forming a sheet
CN112404164A (en) * 2020-11-10 2021-02-26 上海宝冶集团有限公司 Technological method for pressing and forming square tube
CN116099952B (en) * 2023-01-10 2024-03-29 连云港市东堡旋耕机械有限公司 Multi-station simultaneous metal processing stamping equipment of agricultural rotary cultivator

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2365515B2 (en) 1973-02-14 1977-08-25 BENDING DEVICE FOR PLATES
DE2402190C3 (en) 1974-01-17 1978-03-02 Mitsubishi Jukogyo K.K., Tokio Device for bending steel sheets or plates
DE2455521C3 (en) 1974-11-23 1978-05-11 G. Siempelkamp Gmbh & Co, 4150 Krefeld Hydraulic sheet metal bending press
JPS6044050B2 (en) 1976-09-10 1985-10-01 新日本製鐵株式会社 Multi-stage forming method for long shells
US4043165A (en) 1976-09-15 1977-08-23 The Boeing Company Three-point, air-bending sheet metal bender
US4430872A (en) 1980-02-14 1984-02-14 Nippon Kokan Kabushiki Kaisha Method and apparatus for plate edge preparation for UOE pipe making process
US4353235A (en) 1980-06-17 1982-10-12 Kaiser Steel Corporation Edge preforming of metal plate
US4445357A (en) 1980-11-03 1984-05-01 Kaiser Steel Corporation Pipe press
SE443733B (en) 1982-11-12 1986-03-10 Asea Ab SET AND TOOLS FOR BENDING THE THICKNESS PLATE
DE4215807C2 (en) 1992-05-15 1998-03-19 Mannesmann Ag Pipe bending press
DE4410105A1 (en) * 1994-03-21 1995-09-28 Mannesmann Ag Pipe forming press
DE19621658C2 (en) 1996-05-30 1999-11-04 Eht Werkzeugmaschinen Gmbh Processing machine for plate-shaped workpieces, in particular for producing curved edges on sheet metal parts
DE10232098B4 (en) * 2002-07-15 2004-05-06 Sms Meer Gmbh Device for producing pipes from sheet metal

Also Published As

Publication number Publication date
EP2077165B1 (en) 2010-02-17
PT2077165E (en) 2010-05-17
ES2447495T3 (en) 2014-03-12
PL2077165T3 (en) 2010-07-30
RS51337B (en) 2011-02-28
EP2077166A1 (en) 2009-07-08
DK2077165T3 (en) 2010-06-07
ATE457838T1 (en) 2010-03-15
ES2341503T3 (en) 2010-06-21
DE202008000121U1 (en) 2008-04-17
EP2077165A1 (en) 2009-07-08
SI2077165T1 (en) 2010-07-30
DE502008000379D1 (en) 2010-04-01
PL2077166T3 (en) 2014-05-30

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