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EP3227035B1 - Outil de pliage, procédé de pliage et dispositif de pliage - Google Patents

Outil de pliage, procédé de pliage et dispositif de pliage Download PDF

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Publication number
EP3227035B1
EP3227035B1 EP15808132.3A EP15808132A EP3227035B1 EP 3227035 B1 EP3227035 B1 EP 3227035B1 EP 15808132 A EP15808132 A EP 15808132A EP 3227035 B1 EP3227035 B1 EP 3227035B1
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EP
European Patent Office
Prior art keywords
folding
hemming
tool
elements
drive
Prior art date
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Active
Application number
EP15808132.3A
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German (de)
English (en)
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EP3227035A1 (fr
Inventor
Toni SONNTAG
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KUKA Systems GmbH
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KUKA Systems GmbH
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Publication of EP3227035A1 publication Critical patent/EP3227035A1/fr
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Publication of EP3227035B1 publication Critical patent/EP3227035B1/fr
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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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder
    • B21D39/021—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors

Definitions

  • the invention relates to a hemming tool, a hemming method and a hemming device with the features of the independent claims.
  • the JP H04 266433 A shows a hemming tool for multi-stage bending hemming of a workpiece, the hemming tool having a plurality of driven hemming elements which are advanced to a common hemming point.
  • the hemming tool has three hemming elements arranged one above the other, the hemming elements each executing a pivoting movement for pre-hemming and intermediate hemming and the hemming element executing a sliding movement for final hemming.
  • the hemming or flanging tool has two driven hemming elements for pre-hemming and finishing hemming, which can be delivered to a common hemming point on the workpiece.
  • the two hemming elements are designed as pre-hemming and finishing hemming steel and are arranged on a rotatable hemming head. From the DE 200 04 498 U1 Another version of such a hemming tool with two hemming elements is known.
  • the WO 98/02260 discloses a hemming tool in which several hemming elements that are jointly driven from a central point are fed to different hemming locations on a workpiece.
  • the invention solves this problem with the features in the independent claims.
  • the hemming technology claimed ie the hemming tool and the hemming process and the hemming device, have various technical and economic advantages.
  • the folding angle can be increased significantly. Folding angles of 160 ° and more can be formed by a single folding tool. This can be done in a single cycle or folding process. The workpiece can keep its position for this.
  • the folding technique claimed is very efficient and inexpensive. It requires little construction and control effort and takes up little space.
  • the hemming process can be carried out very quickly and safely and in a single setting.
  • the bending or hemming process takes place quickly, whereby the rebate or flange of the workpiece is plastically deformed into the end position without annoying springback. Overloading of the workpiece material during the bending or hemming process and the resulting defects, e.g. flow marks, can be avoided.
  • the folding elements can be fed to the common folding point one after the other in three or more folding steps and, in doing so, gradually bend the workpiece fold or flange until the desired end angle is reached.
  • the flange or fold is bent in the same direction in each of the successive folding steps. This folding process can be carried out with high precision.
  • the folding steps follow one another quickly, with the dwell time of the respective folding element on the other hand is sufficiently long in engagement with the workpiece rebate or flange to achieve the desired permanent deformation.
  • the folding elements can have a common drive. This can be designed as a follow-up drive and ensure the rapid and precise movement and delivery sequence of the folding elements.
  • the folding elements can also be removed from the folding point again after their respective folding step.
  • the three or more folding elements can move without collisions and in a defined sequence of movements. It is also advantageous here if the folding elements are each mounted so that they can move independently.
  • the folding elements can have different kinematics, the pre-folding element executing a linear sliding movement. At least one other folding element for intermediate folding and / or final folding performs a pivoting movement during folding.
  • the intermediate hemming element can perform a pivoting movement or a multi-axis sliding / pivoting movement and the final hemming element can execute a pivoting movement.
  • the bearings of the folding elements are designed accordingly.
  • the drive has a rotating drive shaft and a gear for transmitting the drive to the folding elements.
  • the gearbox can also be used to control the sequence of steps and movements as well as the evasive or retreat movements of the folding elements.
  • Such a drive design has particular advantages in terms of performance and low construction costs. A 360 ° rotation of the drive shaft is sufficient for the hemming process. At the end of this, the hemming tool automatically resumes its starting position, in which all the hemming elements are in a retracted position and enable a collision-free workpiece change. In addition, the control is significantly simplified.
  • a gear design as a link gear has particular advantages for the defined kinematics and movement sequences as well as positions and alignments of the folding elements.
  • gear is divided into several gear groups, with each hemming element preferably being assigned its own gear group.
  • the direct coupling of at least two transmission groups is also beneficial. This offers advantages for the exact control and coordination of the step and movement sequence of the folding elements and for the folding forces that can be applied.
  • a coupling of the gear groups for an intermediate and a finished hemming element is particularly advantageous.
  • a design of the gear groups as a respective toggle lever gear allows high folding forces.
  • the hemming tool used also has advantages in terms of operational reliability, low wear and tear and energy consumption.
  • the transmission can also be used advantageously for actuating and controlling the mounting of a folding element, in particular a multi-axis pivoting / sliding bearing. Due to the common drive, the drive energy can be supplied for all movements of the various parts of the hemming tool.
  • a single drive means is sufficient, which can be designed in any suitable manner, e.g. as a controllable or regulatable electric motor.
  • the invention relates to a hemming tool (2) for multi-stage bending hemming of a flange or hinge (6) on a workpiece (5).
  • the invention also relates to a folding device (1) with one or more such folding tools (2) and a folding method.
  • the workpiece (5) is preferably thin-walled and made of metal. It can be single-ply or multi-ply. With a bent fold (6) according to Figure 2 and 10 another workpiece part (5 ') can be clamped. The further workpiece part (5 ') rests on the workpiece (5) and is overlapped by the plastically deformed fold (6) in its end position during the bending fold and clamped against the workpiece (5).
  • the workpiece (5) is designed as a sheet metal part made of steel.
  • the workpiece (5) can be used for any purpose. They are preferably sheet metal parts for the shell construction of vehicle bodies.
  • the fold or flange (6) is designed to protrude from the outer edge of a workpiece (5), for example.
  • FIG. 1 a folding device (1) with an associated folding tool (2) is shown schematically and broken off.
  • the folding tool (2) acts on a folding point (7) on the workpiece (5) and its fold (6).
  • the hemming tool (2) can be present several times and at different points on the workpiece periphery. The design and function of the hemming tool (2) are explained below.
  • the folding device (1) can also have a workpiece support (4), in particular a folding bed, on which the workpiece (5) rests and is guided in a suitable manner.
  • the workpiece position is preferably horizontal.
  • the hemming tool (2) can have a hold-down device (3), for example a clamp, for the workpiece (5).
  • the hold-down device (3) can be designed as desired and be present several times. He is in Figure 1 for the sake of clarity, symbolized by an arrow.
  • the hemming tool (2) is used for multi-stage bending hemming of the workpiece (5) or the hinge (6).
  • the bending hemming takes place in three or more stages.
  • the flange or fold (6) is bent in the same direction in each of the successive folding steps or steps. In Figure 2 various bending positions of the fold (6) are shown for this purpose.
  • the hemming tool (2) has three or more driven hemming elements (13, 17, 21). With the hemming tool (2), the hinge (6) can over a hinge angle ( ⁇ ) of, for example, 160 ° and to be bent more. The folding angle ( ⁇ ) can also be smaller depending on the design and setting of the folding tool (2).
  • the fold (6) in the starting position (8) assumes an obliquely upwardly directed position with respect to the main plane of the workpiece (5).
  • the fold (6) protrudes a little laterally beyond the edge of the workpiece support (4) directed vertically or transversely to the main plane of the workpiece.
  • the fold (6) is bent into a more steeply upwardly directed intermediate layer (9), in particular perpendicular to the main plane of the workpiece.
  • This first step is known as the pre-hemming step.
  • a so-called intermediate folding step the fold (6) is bent back obliquely towards the workpiece (5) into an inclined intermediate layer (10).
  • the so-called final folding step the fold (6) is bent into the end position (11), in which it is aligned e.g. parallel to the main plane of the workpiece (5).
  • the folding angle ( ⁇ ) is approx. 160 °. It can also be smaller or larger than 160 °. Particular advantages over previously known two-stage hemming tools result from hinge angles ( ⁇ ) above 100 °, in particular 120 °. A preferred range for the folding angle ( ⁇ ) in practice is 120 ° to 180 °. In special cases it can be more than 180 °.
  • the three folding elements (13, 17, 21) are referred to as the pre-folding element (13), the intermediate folding element (17) and the final folding element (21).
  • they are fed one after the other to the common folding point (7) on the workpiece (5). They act in a row on the same fold point (7) and bend the fold (6) with plastic deformation in the aforementioned three folding steps.
  • the pre-fold element (13) performs a linear sliding movement. In the exemplary embodiment shown, this takes place during pre-folding. At least one other folding element (17, 21), preferably both folding elements (17, 21), perform a pivoting movement during folding. In the exemplary embodiment shown, this takes place during intermediate hemming and final hemming.
  • the intermediate fold element (17) can perform a multi-axis movement in the folding process, whereby it pivots about a joint or its axis (18 ') and this joint (18') can be displaced on the other hand.
  • This displacement movement can be a pivoting movement or a linear movement.
  • the hemming tool (2) has a frame (12) which is supported in a suitable manner. It is preferably attached to the side of the workpiece support (4).
  • the folding elements (13, 17, 21) are mounted on the frame (12) so as to be continuously movable.
  • the pre-hemming element (13) has a bearing (14) which is designed, for example, as a sliding bearing. The bearing axis or direction of movement is oriented perpendicular to the main plane of the workpiece or, in the embodiment and workpiece position shown, vertically.
  • the intermediate fold element (17) has a bearing (18) which is designed, for example, as a multi-axis pivoting / sliding bearing.
  • the mounting (18) is formed by an adjusting means (41) that can move relative to the frame (12), in particular a pivot lever, and its articulated connection (18 ') with the intermediate fold element (17).
  • adjusting means (41) can move relative to the frame (12), in particular a pivot lever, and its articulated connection (18 ') with the intermediate fold element (17).
  • two pivoting movements are carried out, each with a horizontal axis (18 ', 45).
  • That Actuating means (41) can alternatively be, for example, a slide or have a different design and kinematics.
  • the prefabricated rabbet element (21) has a bearing (22) which is designed, for example, as a frame-mounted pivot bearing with a horizontal axis.
  • the folding elements (13, 17, 21) are arranged one above the other, with the pre-folding element (13) being arranged at the bottom, the intermediate folding element (17) in the middle and the finished folding element (21) being arranged above.
  • the folding elements (13, 17, 21) can be designed in any suitable manner, in particular in one piece or in several pieces. In the exemplary embodiments shown, they each have a folding jaw (15, 19, 23) with a folding contour suitable for the process and a jaw carrier (16, 20, 24).
  • the jaw carrier (16, 20, 24) carries the permanently or exchangeably mounted folding jaw (15, 19, 23) at one end. At the other end of the end area or at another point, the jaw carrier (16, 20, 24) is connected to the bearing (14, 18, 22) of the folding element (13, 17, 21).
  • the jaw carriers (16, 20, 24) can have different shapes.
  • the jaw carriers (16, 20) of the pre-hemming and intermediate hemming elements (13, 17) can be block-like.
  • the jaw carrier (24) of the finished hemming element (21) has a curved shape which extends upwards from the mounting (22) located approximately at the level of the workpiece (5) and in an arc towards the workpiece (5).
  • the finished hemming element (21) can overlap the intermediate hemming element (17) in an arc from behind and from above and offers space for an in Figure 7 shown retraction position of the intermediate fold element (17).
  • the folding elements (13, 17, 21) preferably have a common drive (25). They can be driven together and at the same time.
  • the drive (25) can also be used to adjust the pivot / slide bearing (18).
  • the drive (25) has a drive means (26) which is connected to a suitable drive means (not shown), for example a controllable or regulatable motor, in particular an electric motor.
  • a suitable drive means for example a controllable or regulatable motor, in particular an electric motor.
  • the propellant (26) is designed as a rotating drive shaft.
  • the shaft axis is preferably aligned parallel to the axes of the bearings (18, 22).
  • the propellant can be designed as a push rod or in any other suitable manner.
  • the hemming tool (2) also has a gear (28) for the drive transmission from the propellant (26) to the hemming elements (13, 17, 21).
  • the gear (28) can also act on the pivot / slide bearing (18).
  • the gear (28) is mounted and supported on the frame (12).
  • the gear (28) can be designed in any suitable manner. In the exemplary embodiment, it is designed as a link mechanism.
  • the drive (25) also has a crank (29) connected to the propellant (26). This can be part of the transmission (28).
  • the drive (25) has a rotating cam (30) connected to the propellant (26). The connection is non-rotatable and is used to actuate the pivot / slide bearing (18).
  • the cam disk (30) is designed as a cam mounted eccentrically on the drive shaft (26). This has an arcuate section (31) which is concentric to the axis of rotation and is connected on both sides and is conical to the axis of rotation (26) tapered flank sections (32,33). The cam is rounded at the rear end diametrically opposite the arched section. Said sections (31,32,33) have rounded transitions. They are located on the outer circumference of the cam. The arc section (31) is wider than the rear cam end. Alternatively, the cam (30) can be designed in another suitable manner.
  • the cam disk (30) is operatively connected to the pivot / slide bearing (18).
  • the connection is such that the intermediate fold element (17) executes a multi-axis pivoting movement to the fold (6) and then a retraction movement during the hemming process.
  • the pivot lever (41) is designed as an angle lever. It can have two lever arms (42, 43) of different lengths.
  • the pivot lever (41) has a lever bearing (45) fixed to the frame. This is preferably located in the corner area or transition area between the lever arms (42, 43).
  • the shorter lever arm (42) extends from the lever bearing (45) to the intermediate fold element (17), in particular to its jaw carrier (20), and the joint (18 ') there.
  • the longer lever arm (43) extends from the lever bearing (45) to the roller (44) and to the cam disk (30).
  • the transmission (28), preferably the link mechanism shown, has several preferably jointly driven transmission groups (34, 40, 49). In the exemplary embodiment shown, these are three gear groups, each folding element (13, 17, 21) being assigned a gear group (34, 40, 49).
  • gear groups (34, 40, 49) are designed as toggle mechanisms. They are connected to the rotationally driven crank (29) and generate high folding forces.
  • the mutual assignment of the transmission groups (34, 40, 49) and their connection with the crank (29) can be designed differently. They can each have their own crank connection, e.g. as with the gear group (34).
  • at least two transmission groups (40, 49) are directly coupled to one another. As a result, their movements are dependent on one another or coordinated with one another.
  • the coupling preferably relates to the gear groups (40, 49) for intermediate and final hemming.
  • One gear group (34) for pre-hemming has a drive link (35) which is designed, for example, as a push rod.
  • the drive link (35) is arranged horizontally and is articulated at one end to the crank (29) and at the other end is connected to two toggle levers (36, 38) via a hinge (39).
  • the toggle levers (36, 38) act on the lower folding element (13), in particular the pre-folding element. You move it up and down according to the push rod position along the sliding bearing (14).
  • the lower toggle lever (36) is rotatably mounted on a lever bearing (37) fixed to the frame.
  • the upper toggle lever (38) is connected in an articulated manner to the folding element (13), in particular to its jaw support (16).
  • Another gear group (40), in particular for intermediate hemming, has a pull rod (46), a pivot lever (50) and a drive link (48), each of which is connected to one another at the end via a joint (47).
  • the pull rod (46) is articulated at the other end to the crank (29).
  • the drive link (48) is articulated at its other end to the folding element (17), in particular its jaw carrier (20).
  • the pivot lever (50) is designed as a wishbone. It has a lever bearing (51) fixed to the frame.
  • the third gear group (49), in particular for finishing hemming, has a drive link (52) and the said pivot lever (50), which are connected to one another in an articulated manner.
  • the drive link (52) is articulated at the other end to the folding element (21), in particular its jaw carrier (24).
  • the links (35,46,48,52) are preferably designed as straight and slender rods.
  • the pivot lever (50) is common to both gear groups (40, 49) and couples them.
  • the bearing (51) fixed to the frame, the joint (47) and the articulation point of the drive link (52) are spaced apart from one another and are each arranged at a corner area of the triangular lever (50).
  • Figure 3 shows the starting position of the hemming tool (2) and its parts. The same position is also in Figure 1 shown. In Figure 3 the frame (12) is not shown for reasons of clarity.
  • the finished hemming element (21) is also pivoted clockwise backwards into said retracted position via its gear unit (49). If necessary, the finished hemming element (21) can also retain its initial position, the movements of the drive link (52) and the pivot lever (50) being neutralized.
  • Figure 5 shows a next rotational position of the drive (25) and the drive shaft (26).
  • the toggle levers (36, 38) of the gear group (34) again assume a bent position which is directed opposite to the starting position.
  • the pre-hemming element (13) is lowered again due to the bent position.
  • Figure 7 illustrates the final hemming step in which the intermediate hemming element (17) is removed from the hinge (6) and assumes a retracted position.
  • the joint (18 ') has been removed from the workpiece (5) and moved back.
  • the angle lever (41) has been pivoted clockwise, whereby the gear group (40) also swings back the intermediate fold element (17) clockwise around the displaced joint (18 ') causes.
  • the gear group (49) causes a pivoting movement of the final hemming element (21) about the bearing (22) counterclockwise into the hemming position shown.
  • the folding jaw (23) bends the fold (6) from the intermediate position (10) into the end position (11).
  • the folding jaw (23) can overlap the intermediate folding element (17).
  • the lower folding element (13) has the in Figure 6 shown bottom dead center of its shifting movement is exceeded and is again in the upward movement.
  • the hemming jaw (15) is still positioned below the hinge (6).
  • the folding elements (13,17,21) take the in Figure 1 and 3 starting position shown.
  • the toggle levers (36, 38) can once again pass their extended position. In this starting position, all of the folding elements (13, 17, 21) are in their retracted position, so that the folded workpiece (5) is exposed and can be changed.
  • the gear (28) can be designed in a different way. It can have rolling parts, for example.
  • the group formation and group subdivision of the gear parts can be different.
  • the gear (28) can also have different kinematics.
  • the arrangement and kinematics of the bearings (14,18,22) are also variable.
  • the number of folding elements and the folding steps can be greater than three.
  • a common single drive (25) several drives and propellants (26) can be present, which are then each connected to only one or a few gear groups.
  • the workpiece position can be different and, for example, have a vertical directional component. The aforementioned orientations of the hemming tool (2) and its parts then change accordingly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (15)

  1. Outil de pliage pour le pliage flexionnel en plusieurs étapes d'une pièce (5), l'outil de pliage (2) comprenant plusieurs éléments de pliage entraînés (13, 17, 21), qui peuvent être acheminés vers un emplacement de pliage commun (7), l'outil de pliage (2) comprenant trois éléments de pliage (13, 17, 21) ou plus agencés les uns au-dessus des autres, un élément de pliage (13) pour le pliage préliminaire réalisant un mouvement de coulissement linéaire et un élément de pliage (17, 21) pour le pliage intermédiaire et/ou le pliage final réalisant un mouvement de pivotement.
  2. Outil de pliage selon la revendication 1, caractérisé en ce que l'outil de pliage (2) est prévu et configuré pour un angle de pliage (α) de plus de 100°, notamment de 120° à 180°, de préférence d'environ 160°, les éléments de pliage (13, 17, 21) pouvant être acheminés successivement en plusieurs étapes de pliage vers l'emplacement de pliage commun (7).
  3. Outil de pliage selon la revendication 1 ou 2, caractérisé en ce que les éléments de pliage (13, 17, 21) présentent un entraînement commun (25), notamment un entraînement asservi.
  4. Outil de pliage selon l'une quelconque des revendications précédentes, caractérisé en ce que l'outil de pliage (2) comprend un châssis (12), sur lequel les éléments de pliage (13, 17, 21) sont montés mobiles de manière autonome, un élément de pliage (13), pour le pliage préliminaire, comprenant un palier de coulissement (14) et un élément de pliage (19) pour le pliage intermédiaire comprenant un palier de pivotement/coulissement (18), et un élément de pliage (21) pour le pliage final comprenant un palier de pivotement (22).
  5. Outil de pliage selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entraînement (25) un moyen de propulsion (26), notamment un arbre de propulsion rotatif, et est relié à une transmission (28), notamment une transmission à bras articulé, pour le transfert d'entraînement aux éléments de pliage (13, 17, 21).
  6. Outil de pliage selon la revendication 5, caractérisé en ce que l'entraînement (25) comprend une manivelle (29) reliée au moyen de propulsion (26) et un disque à came rotatif (30) relié au moyen de propulsion (26) .
  7. Outil de pliage selon la revendication 6, caractérisé en ce que le disque à came (30) est configuré sous la forme d'une came montée de manière excentrique avec une section d'arc concentrique (31) et des sections de flanc (32, 33) adjacentes des deux côtés, s'effilant de manière conique.
  8. Outil de pliage selon l'une quelconque des revendications 5, 6 ou 7, caractérisé en ce que la transmission (28), notamment la transmission à bras articulé, comprend plusieurs, notamment trois, groupes de transmission (34, 40, 49).
  9. Outil de pliage selon la revendication 8, caractérisé en ce qu'un groupe de transmission (34, 40, 49) est associé à chaque élément de pliage (13, 17, 21) .
  10. Outil de pliage selon la revendication 8 ou 9, caractérisé en ce qu'un groupe de transmission (34, 40, 49) est configuré sous la forme d'une transmission à genouillère.
  11. Outil de pliage selon la revendication 10, caractérisé en ce qu'un groupe de transmission (34) comprend un bras articulé de propulsion (35), notamment une barre de poussée, qui est relié de manière articulée à une extrémité avec la manivelle (29) et à l'autre extrémité avec des genouillères (36, 38), un groupe de transmission (40) comprenant une barre de traction (46), un levier de pivotement (50) et un bras articulé de propulsion (48), qui sont reliés les uns aux autres par l'intermédiaire d'une articulation (47), et un groupe de transmission (49) comprenant un bras articulé de propulsion (52) et un levier de pivotement (50), qui sont reliés l'un à l'autre de manière articulée, le bras articulé de propulsion (52) étant d'autre part relié de manière articulée à l'élément de pliage (21).
  12. Appareil de pliage pour le pliage flexionnel en plusieurs étapes d'une pièce (5), l'appareil de pliage (1) comprenant un support de pièce (4), notamment un lit de pliage, et un outil de pliage (2) muni de plusieurs éléments de pliage entraînés (13, 17, 21), qui peuvent être acheminés vers un emplacement de pliage commun (7), caractérisé en ce que l'outil de pliage (2) est configuré selon au moins l'une quelconque des revendications 1 à 11.
  13. Procédé pour le pliage flexionnel en plusieurs étapes d'une pièce (5) au moyen d'un outil de pliage (2), qui comprend plusieurs éléments de pliage entraînés (13, 17, 21), qui sont acheminés vers un emplacement de pliage commun (7), l'outil de pliage (2) comprenant trois éléments de pliage (13, 17, 21) ou plus agencés les uns au-dessus des autres, un élément de pliage (13) pour le pliage préliminaire réalisant un mouvement de coulissement linéaire et un élément de pliage (17, 21) pour le pliage intermédiaire et/ou le pliage final réalisant un mouvement de pivotement.
  14. Procédé selon la revendication 13, caractérisé en ce que les éléments de pliage (13, 17, 21) sont acheminés successivement vers l'emplacement de pliage commun (7) en trois étapes de pliage ou plus, les trois éléments de pliage (13, 17, 21) ou plus étant déplacés par un entraînement asservi commun (25) sans collision dans un ordre de déplacement défini vers l'emplacement de pliage commun (7) et étant chacun de nouveau éloignés après leur étape de pliage.
  15. Procédé selon la revendication 13 ou 14, caractérisé en ce que le processus de pliage est réalisé avec un réglage unique, une pliure (6) étant courbée avec l'outil de pliage (2) sur un angle de pliage (ex) d'environ 160° et plus.
EP15808132.3A 2014-12-04 2015-12-03 Outil de pliage, procédé de pliage et dispositif de pliage Active EP3227035B1 (fr)

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DE202014105862.1U DE202014105862U1 (de) 2014-12-04 2014-12-04 Falzwerkzeug und Falzeinrichtung
PCT/EP2015/078491 WO2016087572A1 (fr) 2014-12-04 2015-12-03 Outil de pliage, procédé de pliage et dispositif de pliage

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CN208350340U (zh) * 2018-04-27 2019-01-08 深圳市大疆创新科技有限公司 一种折叠设备
CN111872190B (zh) * 2020-07-23 2021-07-13 南京云上自动化科技有限公司 一种高精、重载数控折边机

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US20170333974A1 (en) 2017-11-23
US10596616B2 (en) 2020-03-24
WO2016087572A1 (fr) 2016-06-09
DE202014105862U1 (de) 2016-03-03
CN107000016B (zh) 2020-10-30
CN107000016A (zh) 2017-08-01
EP3227035A1 (fr) 2017-10-11

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