EP3010663B1 - Dispositif à butée arrière pour plieuse - Google Patents

Dispositif à butée arrière pour plieuse Download PDF

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Publication number
EP3010663B1
EP3010663B1 EP14749701.0A EP14749701A EP3010663B1 EP 3010663 B1 EP3010663 B1 EP 3010663B1 EP 14749701 A EP14749701 A EP 14749701A EP 3010663 B1 EP3010663 B1 EP 3010663B1
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EP
European Patent Office
Prior art keywords
stop
stop device
support arm
rear stop
gripping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14749701.0A
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German (de)
English (en)
Other versions
EP3010663A1 (fr
Inventor
Gerhard Angerer
Klemens Freudenthaler
Josef Gaggl
Matthias HÖRL
Helmut Theis
Thomas Weiss
Manfred WALDHERR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trumpf Maschinen Austria GmbH and Co KG
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Trumpf Maschinen Austria GmbH and Co KG
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Publication date
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Publication of EP3010663A1 publication Critical patent/EP3010663A1/fr
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Publication of EP3010663B1 publication Critical patent/EP3010663B1/fr
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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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/26—Stops
    • 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
    • B21D5/002—Positioning devices
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/026—Combination of two or more feeding devices provided for in B21D43/04 - B21D43/18
    • 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
    • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means

Definitions

  • the invention relates to a Häantschmati with a stop and / or gripping and / or measuring element, as set forth in claim 1.
  • the DE 697 22 935 T2 discloses a back stop unit constructed on the basis of a scissor lift unit.
  • a scissor lift unit Here are two horizontally aligned stop fingers, arranged on a common, running in the direction parallel to the sheet bending line, guide rail, and thereby individually displaceable in this direction.
  • This common guide rail is mounted on the scissor lift units via two rods guided on the upper legs of the scissor lift unit.
  • the DE 697 22 935 T2 solves this kinematic disadvantage over said scissor lift, but has the disadvantage that the scissor lift needs a lot of space and is limited in the attack possibilities. Therefore, a space-saving installation in a sheet metal processing plant, if the largest possible range of the stop fingers should be present, not possible. Due to the limited positioning of the stop finger in the direction of attack, the versatility for the processing of variously shaped sheets is given only limited, or creates a very large overall space requirement.
  • the present invention has for its object to improve a Häanschlagiser for connection to a sheet metal working machine, in particular a bending machine such that it is advantageously designed with respect to their moving masses, and also makes the best use of the available space to a large variation in positioning options to reach.
  • a back stop unit is formed with a stop and / or gripping and / or measuring element, which is arranged by means of a rotary joint on an adjustable support arm.
  • This backgauge unit serves to position a sheet to be processed on a bending press.
  • the support arm is connected by means of a further rotary joint with a guide element which engages in a guide rail.
  • a support arm is present, which is connected via a hinge with the support arm and a rigid connection with another guide element.
  • This further guide element engages like the first guide element of the support arm in the guide rail.
  • The, the support arm and the support arm connecting, joint is designed as a rotary sliding joint.
  • An advantage of the design according to the invention is that the control of their position via drives, which are arranged in the underlying guide rail can be done by the formation of the Stromanschlagiser means of two articulated arms.
  • This arrangement of the drives ensures that no large moving masses are arranged at a great distance from the machine frame, and thus to the guide and drive unit.
  • high accelerations can also be realized by drives with comparatively low power in the adjustment of the stop and / or gripping and / or measuring element, whereby a high adjustment speed and therefore short cycle times can be achieved.
  • the rotary joint between stop and / or gripping and / or measuring element and support arm is designed as a rotary drive, such as a servomotor.
  • a rotary drive is any angle ⁇ between the stop and / or gripping and / or measuring element and a normal, standing on a working plane of the bending press X-axis in the rotary drive variably adjustable.
  • the greatest possible freedom of application of the backgauge unit is ensured by the free adjustability of the angle of rotation of a stop and / or gripping and / or measuring element.
  • a gripping element for example, can carry the sheet actively in the bending process by the free adjustability of the angle of rotation, or change the tool on the bending press and transferred to a tool storage.
  • the stop and / or gripping and / or measuring element is mounted on the rotary joint via a quick-change device and / or has at least one stop finger.
  • the quick-change device ensures that the set-up times for mounting the various tools mentioned above, which can be attached to the stop unit, remain as short as possible, and therefore incur the lowest possible machine times. This minimization of machine off-times has a positive effect on the productivity of the machine and therefore also positively on the operating costs of the machine.
  • the stop finger is mounted either as a separate stop unit to ensure the greatest possible freedom of use in the stop position, or that the stop finger, for example, part of the gripping or measuring tool to get along without tool change between the individual machining operations.
  • a plurality of stop fingers are mounted in the execution of a tool turret on the circumference to bring different Anschlagfingergeometrien used.
  • a measuring unit detects a torque which is initiated by a force exerted at a distance from the axis of rotation and normal to the stop finger.
  • detecting the torque can be detected in certain positions of the stop finger, the force exerted on the stop finger stop force.
  • a gripping element for actively guiding the sheet to be bent
  • a deviation of the actual position of the sheet to the desired position can be detected via the torque.
  • a collision of the stop and / or gripping and / or measuring element can be detected with an object, whereby the personal safety can be increased, since a risk of crushing is prevented by detection.
  • Another Advantage is that a possible jamming of the bending tool can be detected in a bending tool change.
  • the stop finger has a plurality of abutment surfaces, which are retrievable or actively predetermined with respect to their position and their position by a control device.
  • the stop finger not only, as a conventional stop finger, can be used as a stop for a straight plate, but that also bent and already bent sheets can be positioned with the stop finger by the orientation of the stop finger changed -, and one of the other stop surfaces is used for positioning.
  • the dimensions of bending sequences can be realized more accurately.
  • the stop finger has a stepped shoulder, whereby two mutually perpendicular stop surfaces are formed.
  • the advantage here is that the sheet can be positioned on a stop surface in a horizontal position and at the same time supported by the right angle on horizontal stop surface sheet, to prevent bending of the sheet by the action of gravity.
  • the guide rail has separate, mutually parallel guide surfaces for the guide elements of the support arm and the support arm.
  • a drive of the two guide elements can be implemented, in which they can be moved independently of each other.
  • the guide element of the support arm and the guide element of the support arm on the common guide rail are independently displaceable by two mechanical adjusting drives in the guide direction.
  • two mechanical adjusting drives By this independent adjustment of the two guide elements a longitudinal and a height positioning of the stop and / or gripping and / or measuring element on the position of the support arm and the support arm to each other can be achieved.
  • the independent drives can also be achieved that the guide elements can be moved past each other, and therefore an inverse position is possible.
  • the guide element of the support arm or the guide element of the support arm is displaceable in the guide direction by a mechanical Hauptverstellantrieb, whereby it becomes a main guide element, and that the guide element of the other arm via a further mechanical adjustment relatively movable with respect Main guide element is coupled to this. It may be advantageous that in the case of a pure longitudinal displacement of the back stop only the drive of the main guide element has to be moved and the drive of the second, relative to the main guide element dependent, guide element does not need to be controlled. This can be achieved that the second drive is exposed to less wear, and that energy can be saved in the adjustment.
  • the guide direction of the guide rail is arranged in the direction of the X-axis or in a vertically oriented R-direction, or in one or in a, normal to the X-direction and the R-direction, Z-direction ,
  • the arrangement in the X direction represents a similar possibility to conventional backgauge units.
  • the space conditions behind the bending machine are not restricted by the stop device.
  • the Z direction it may be advantageous for the kinematic conditions to be further improved.
  • the guide rail can be positioned by means of a positioning drive either in the Z direction or in the R direction.
  • the backing unit is also freely positionable in the direction parallel to the bending line, whereby sheets of different sizes and shapes can be processed.
  • the length x of the support arm is between 5 and 90%, preferably between 40% and 60% of the length y of the support arm. This ensures that the necessary height adjustment of the stop and / or gripping and / or measuring element, is ensured by an adjustment of the guide elements to each other, and not too high adjusting forces, but also not too high adjustment paths are necessary.
  • Support arm and support arm together form a support structure for the stop and / or gripping and / or measuring element, the Greek letter Lambda ⁇ is similar, with the support arm corresponding to the longer straight section supported by the shorter straight section in the form of the support arm.
  • the length yl of the support arm between the rotary drive and the rotary joint, which connects the support arm to the support arm is variably adjustable by means of a Popetellantriebs.
  • a Popetellantriebs As a result, sheets of various shapes and lengths can be processed.
  • a processing plant 1 comprising a bending press 2, in particular for the bending of sheet 3, with a fixed pressing beam 4 and a relative to this adjustable pressing bar 5 shown.
  • the processing system 1 also comprises a backgauge device 6, which consists of at least one back stop unit 7.
  • the back stop unit 7 is mounted on the machine frame 8 in the illustrated embodiment. However, it is not absolutely necessary that the back stop unit 7 is mounted directly on the machine frame 8. It is also conceivable an embodiment possibility in which the back stop unit 7 is mounted directly on the machine location as a separate unit directly on a hall floor, and not on the machine frame 8. In this case, however, the back gauge unit 7 would have to be measured exactly to the machine frame 8 after installation. For reasons of the requirements on the accuracy of the sheet 3 to be bent, however, it seems to be expedient if the back stop unit 7 is mounted directly on the machine frame 8.
  • a control device 9 is also attached, which is responsible for the control of the bending press 2 and the backgauge device 6.
  • this is a separate control unit has, which is connected to the control device 9 of the processing plant 1 via a bus system.
  • the actuators of the backgauge device 6 are controlled in their movement directly from the control device 9 of the processing system 1.
  • the Hinterantschmati 7 a stop and / or gripping and / or measuring element 10.
  • This stop and / or gripping and / or measuring element 10 is responsible for the correct positioning of the sheet 3 and is in the positioning process in direct contact with the sheet 3.
  • various elements can be used, which will be described in more detail.
  • a significant advantage of the invention is an embodiment in which the stop and / or gripping and / or measuring element 10 is connected by means of a rotary joint 12 with the support arm 13.
  • This hinge 12 ensures that an angle ⁇ 14, between one, normal to the working plane 15 of the press brake 2, X-axis 16, and the stop and / or gripping and / or measuring element 10 is freely selectable and adjustable ,
  • the free adjustment of the angle ⁇ 14 via a rotary drive 17, which is controlled by the control device 9 of the machine.
  • the rotary drive 17 is preferably designed as a torque motor, with other types of realization of the rotary drive 17, for example as a belt drive, with integrated position detection, are possible.
  • stop and / or gripping and / or measuring element 10 is connected by means of a traction mechanism drive 23, or by means of a parallel to the support arm 13 extending linkage, which also connected to the guide member 19 are, and thus ensure that the angle ⁇ in the stop and / or gripping and / or measuring element 10, regardless of the position of the support arm 13, always remains unchanged.
  • the guide element 19 and the guide rail 20 are positively connected with each other to allow sliding of the guide member 19 in a guide direction 11 of the guide rail 20.
  • a support arm 21 is connected at one end via a further joint 22, which is designed as a rotary sliding joint, with the support arm 13. At the other end of the support arm 21 is connected via a rigid connection with another guide member 24.
  • the arrangement of the support arm 13 and the support arm 21 to each other, and the articulated connection 22 in the form of a rotary sliding joint ensures that by the movement of the support arm 21 relative to the support arm 13, the support arm 13 can be changed in position.
  • a quick-change device 25 which is connected between the stop and / or gripping and / or measuring element 10 and the attachment point on the pivot joint 12.
  • the use of a quick-change device 25 makes sense if different tools or stop elements are used. The goal here is to allow a quick and easy replacement of the individual tools.
  • the quick-change device 25 can be controlled either via the control device 9, and thus enable automatic tool change, or be designed only for a manual tool change.
  • the stop finger 26 which will be described in more detail can be designed either as a separate stop element 10, or in combination with a gripping or measuring element 10. It is also conceivable that the gripping element 10, for example, does not have a specially designed stop finger 26, but that the stop finger forms part of the gripping or measuring element 10, and therefore has a double functionality.
  • Fig. 3 the inverse position of the support arm 13 is shown, in which this is not inclined to the working plane 15, but from this away. Due to this possibility of movement of the support arm 13, the greatest possible flexibility with respect to the abutment possibilities of sheets 3 of different lengths is ensured even with limited space conditions in the processing installation 1.
  • the support arm 13 has a linear guide 27, in which the rotary-push joint 22 can be moved along a longitudinal direction A 28 on the support arm.
  • connection between the guide rail 20 and the guide elements 19 and 24 may be formed such that the positive connection between the guide elements 19 and 24, and the guide rail 20 via guide surfaces 29, which of the two guide elements 19 and 24 are engaged in the same way.
  • the guide element 19 of the support arm 13 is positively connected via the guide surfaces 29 with the guide rail 20
  • the guide member 24 of the support arm 21 is positively connected via further guide surfaces 30 with the guide rail.
  • the guide rail 20 has guide surfaces 29 for the guide element 19 and has on the opposite side of the guide rail 20 further guide surfaces 30 for the other guide element 24.
  • the guide elements 19, 24 are independently displaceable by two mechanical adjusting drives 32 and 33 in the guide direction 11. It can also be regarded as advantageous if the guide elements 19 and 24 can be moved past one another in the guide direction 11 on the guide rail 20.
  • the adjustment drives 32 and 33 can be embodied, for example, as spindles, in which the guide elements 19 and 24, which would then have a ball screw drive, engage.
  • the adjusting drives 32 and 33 are formed for example by gears, which engage in the guide rail and thus enable an adjustment of the guide elements 19, 24.
  • the guide elements 19, 24 are adjusted by a traction means which is fixed to the guide elements 19, 24, or also that the guide elements 19, 24 are positioned via a direct drive in the form of a linear magnetic drive.
  • the drives to the various embodiments shown can either be arranged directly on the guide elements 19, 24, or else be integrated into the machine frame 8.
  • the guide elements 19, 24 are not individually and independently positionable in their position, but that one of the guide elements 19, 24 is displaceable by a mechanical Hauptverstellantrieb 34 in the guide direction 11, whereby it becomes a main guide element, and that the respective other guide element 19, 24 via a further, mechanical actuator 35, relatively movable with respect to the main guide element 19, 24, is coupled thereto.
  • the main guide element can be adjusted via one of the above adjusting drives and the further guide element 19, 24 is only relative to the main guide element 19, 24 adjustable, resulting in the advantage that during adjustment operations of the stop finger 26, only along an X direction 16 happen, no adjustment of the other guide member 19, 24 is necessary.
  • the adjustment of the further guide element 19, 24 takes place here by the mechanical coupling with the main guide element 19, 24, wherein the guide elements are thereby displaced together.
  • the guide rail 20 as a whole may be arranged so that the guide direction 11 of the guide rail is arranged either in the X-direction 16 or in a vertical R-direction 31. These arrangements can each ensure that the limited space behind the bending press 2 are optimally utilized.
  • the guide rail 20 can be positioned by means of a positioning drive 36 in a Z direction 37, which is perpendicular to the X direction 16 and the R direction 31.
  • the positioning drive 36 can in this case in the Z direction 37, as in the above examples of the positioning drives 32, 33 in different variants, be executed.
  • the geometries of the support arm 21 and the support arm 13 can be arbitrarily designed, but for reasons of optimal space utilization, it makes sense that the length x 38 of the support arm 21 between 5 and 90%, preferably between 40% and 60% of the length y 39 of the support arm 13 is.
  • Support arm 13 and support arm 21 together form a support structure for the stop and / or gripping and / or measuring element 10, which resembles the Greek letter lambda ⁇ , wherein the support arm 13 corresponds to the longer straight portion of the shorter straight portion in the form of Support arm 21 is supported.
  • Further adjustment possibilities arise when the length y 39 of the support arm 13 between the rotary drive 17 and pivot 22 by means of a Region of Support arm 21 is supported.
  • the Jointnverstellanrieb changed in this case the length y 39 of the support arm 13 in the longitudinal direction A 29th
  • Fig. 4 shows a conventional stop possibility, in which the sheet 3 rests horizontally on a mounted on the fixed pressing beam 4 bending tool 41, and is struck in the horizontal direction against a stop finger 26. It is advantageous if the stop finger 26 has a stepped shoulder 42, whereby two mutually perpendicular stop surfaces 43, 44 are formed, with which the sheet 3 can be positioned in the X direction 16, and at the same time in the R-direction 31, the sheet 3 is supported against a possible deflection due to gravity.
  • Fig. 4 shows a conventional stop possibility, in which the sheet 3 rests horizontally on a mounted on the fixed pressing beam 4 bending tool 41, and is struck in the horizontal direction against a stop finger 26. It is advantageous if the stop finger 26 has a stepped shoulder 42, whereby two mutually perpendicular stop surfaces 43, 44 are formed, with which the sheet 3 can be positioned in the X direction 16, and at the same time in the R-direction 31, the sheet 3 is supported against a possible deflection due to gravity.
  • FIG. 5 shows a detail of the stop finger, in which the two abutment surfaces 43 and 44 are separated by an exemption 45, so that originating from the blank, possible bead or ridge in the sheet 3 no positioning error with it. It is advantageous if the stop finger 26 not only has these two abutment surfaces 43 and 44, but if other surfaces are formed as abutment surfaces 46, 47, the position of the control device 9, are retrievable or active predetermined. Due to the further stop surfaces 46, 47 there are more possible stops, as in Fig. 6 and Fig. 7 is shown. For a stop as in Fig. 4, Fig. 6 or Fig.
  • a measuring unit 48 detects a torque which is initiated by a, at a distance A 49 to a rotational axis 50 of the rotary joint 12, standing force 51.
  • the detection of the torque can also be done via a monitoring device of the motor current in the torque motor.
  • the exemplary embodiments show a possible embodiment variant of the processing system 1 or the backgauge device 6, wherein it should be noted at this point that the invention is not restricted to the specifically illustrated embodiment variants thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (15)

  1. Dispositif de butée arrière (7) comprenant un élément de butée et/ou de préhension et/ou de mesure (10) pour positionner une tôle métallique à traiter (3) sur une presse plieuse (2), lequel élément de butée et/ou de préhension et/ou de mesure (10) est agencé au moyen d'un joint pivotant (12) sur un bras porteur ajustable (13), lequel bras porteur (13) est relié par l'intermédiaire d'un joint pivotant supplémentaire (18) à un élément de guidage (19), et par l'intermédiaire de cet élément de guidage (19) à un rail de guidage (20), et à un bras de support (21) qui est relié par l'intermédiaire d'une articulation (22) au bras porteur (13), caractérisé en ce que le bras de support (21) est relié de manière rigide à un élément de guidage supplémentaire (24), et est monté par l'intermédiaire de cet élément de guidage supplémentaire (24) pouvant se déplacer sur le rail de guidage (20), et l'articulation (22) est conçue sous la forme d'une glissière rotative.
  2. Dispositif de butée arrière selon la revendication 1, caractérisé en ce que le joint pivotant (12) entre l'élément de butée et/ou de préhension et/ou de mesure (10) et le bras porteur (13) est conçu sous la forme d'un dispositif d'entraînement en rotation (17), par exemple un moteur-couple, et dans lequel un angle α (14) entre l'élément de butée et/ou de préhension et/ou de mesure (10) et un axe X (16) debout perpendiculairement à un plan de travail (15) de la presse plieuse (2) peut être ajusté de manière variable dans le dispositif d'entraînement en rotation (17).
  3. Dispositif de butée arrière selon la revendication 1, caractérisé en ce que dans le joint pivotant (12), une cinématique parallèle venant en prise avec l'élément de butée et/ou de préhension et/ou de mesure (10) est formée, par exemple par des tringles ou un entraînement mécanisme de traction (23), de sorte que l'angle α (14) entre l'élément de butée et/ou de préhension et/ou de mesure (10) et l'axe X (16) est toujours le même indépendamment de la position du bras porteur (13).
  4. Dispositif de butée arrière selon l'une quelconque des revendications précédentes,
    caractérisé en ce que l'élément de butée et/ou de préhension et/ou de mesure (10) est monté par l'intermédiaire d'un dispositif à libération rapide (25) sur le joint pivotant (12) et/ou comprend au moins un doigt de butée (26).
  5. Dispositif de butée arrière selon l'une quelconque des revendications précédentes,
    caractérisé en ce qu'un dispositif de mesure (48) détecte un moment de rotation, qui est initié par une force (51) exercée à une distance A (49) par rapport à un axe de rotation (50) du joint pivotant (12), et perpendiculairement à une surface de butée (43) du doigt de butée (26).
  6. Dispositif de butée arrière selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le doigt de butée (26) comprend une pluralité de surface de butées (43, 44, 46, 47), qui peuvent être mises à disposition ou prédéfinies activement par un dispositif de commande (9) par rapport à leur situation et à leur position.
  7. Dispositif de butée arrière selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le doigt d'arrêt (26) a un épaulement analogue à un gradin (42), de sorte que deux surfaces de butées (43, 44) sont formées, qui sont à angle droit l'une par rapport à l'autre.
  8. Dispositif de butée arrière selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le rail de guidage (20) présente des surfaces de guidage séparées (29, 30) pour la réception des éléments de guidage (19, 24) du bras porteur (13) et du bras de support (21).
  9. Dispositif de butée arrière selon l'une quelconque des revendications précédentes,
    caractérisé en ce que l'élément de guidage (24) du bras de support (21) et l'élément de guidage (19) du bras porteur (13) peuvent être déplacés sur le rail de guidage commun (20) indépendamment l'un de l'autre dans la direction de guidage (11) par l'intermédiaire de deux dispositifs d'entraînement d'ajustement mécanique (32, 33).
  10. Dispositif de butée arrière selon l'une des revendications 1 à 8, caractérisé en ce que l'élément de guidage (19) du bras porteur (13) ou l'élément de guidage (24) du bras de support (21) peut être déplacé dans la direction de guidage (11) par l'intermédiaire d'un dispositif d'entraînement d'ajustement mécanique principal (34) de manière à devenir un élément de guidage principal, et en ce que l'élément de guidage (19, 24) de l'autre bras respectif est couplé à ce dernier par un dispositif d'entraînement d'ajustement mécanique supplémentaire (35), pour pouvoir se déplacer de manière relative par rapport à l'élément de guidage principal (19, 24).
  11. Dispositif de butée arrière selon l'une quelconque des revendications précédentes,
    caractérisé en ce que la direction de guidage (11) du rail de guidage (20) est agencée dans la direction de l'axe X (16) ou dans une direction R verticale (31) ou dans une direction Z (37) perpendiculaire à l'axe X (16) et à la direction R (31).
  12. Dispositif de butée arrière selon l'une quelconque des revendications précédentes,
    caractérisées en ce que le rail de guidage (20) peut être positionné par l'intermédiaire d'un dispositif d'entraînement de positionnement (36) sélectivement dans la direction Z (37) ou dans la direction R (31).
  13. Dispositif de butée arrière selon l'une quelconque des revendications précédentes,
    caractérisé en ce que la longueur x (38) du bras de support (21) représente de 5 à 90 %, de préférence de 40 à 60 % de la longueur y (39) du bras porteur (13).
  14. Dispositif de butée arrière selon l'une quelconque des revendications précédentes, caractérisé en ce que la longueur yl (39) du bras porteur (13) entre le dispositif d'entraînement en rotation (17) et le joint pivotant (22), lequel joint pivotant (22) relie le bras porteur (13) au bras de support (21), peut être ajustée de manière variable par l'intermédiaire d'un dispositif d'entraînement d'ajustement de longueur (40).
  15. Machine de traitement (1) comprenant une presse plieuse (2), en particulier pour centrer une tôle métallique (3), ayant un sommier de pression fixe (4) et un sommier de pression (5) ajustable par rapport à ce dernier, et un unité de butée arrière (6), caractérisée en ce que le unité de butée arrière (6) comprend au moins un dispositif de butée arrière (7) selon l'une quelconque des revendications 1 à 14.
EP14749701.0A 2013-06-20 2014-06-18 Dispositif à butée arrière pour plieuse Active EP3010663B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50404/2013A AT514077B1 (de) 2013-06-20 2013-06-20 Hinteranschlagvorrichtung für eine Biegemaschine
PCT/AT2014/050136 WO2014201490A1 (fr) 2013-06-20 2014-06-18 Dispositif à butée arrière pour plieuse

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US11305328B2 (en) 2019-06-27 2022-04-19 Toyota Motor Engineering & Manufacturing North America, Inc. Blanking die apparatuses with infeed assemblies
JP7474643B2 (ja) * 2020-06-15 2024-04-25 株式会社アマダ プレスブレーキ
CN112170562B (zh) * 2020-09-16 2022-07-01 深圳市龙诚行实业有限公司 一种折弯机后定规y轴定位结构
CN113351780B (zh) * 2021-06-01 2022-04-29 河北工业大学 一种压力机上下料电动助力机械手
CN113458190B (zh) * 2021-07-08 2022-02-15 泰州宏润金属科技有限公司 一种汽车五金件加工用折弯装置

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EP3010663A1 (fr) 2016-04-27
WO2014201490A1 (fr) 2014-12-24
US20160151826A1 (en) 2016-06-02
AT514077A4 (de) 2014-10-15
US9592545B2 (en) 2017-03-14
AT514077B1 (de) 2014-10-15

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