EP0524991B1 - Procede et dispositif de pliage d'au moins une section d'un materiau en barre - Google Patents

Procede et dispositif de pliage d'au moins une section d'un materiau en barre Download PDF

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Publication number
EP0524991B1
EP0524991B1 EP91907412A EP91907412A EP0524991B1 EP 0524991 B1 EP0524991 B1 EP 0524991B1 EP 91907412 A EP91907412 A EP 91907412A EP 91907412 A EP91907412 A EP 91907412A EP 0524991 B1 EP0524991 B1 EP 0524991B1
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EP
European Patent Office
Prior art keywords
bending
axis
crank
distance
bent
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EP91907412A
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German (de)
English (en)
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EP0524991A1 (fr
Inventor
Heinz Ruhl
Helmut Zahlaus
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Individual
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Individual
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Priority to AT91907412T priority Critical patent/ATE102094T1/de
Publication of EP0524991A1 publication Critical patent/EP0524991A1/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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • B21D7/025—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member and pulling or pushing the ends of the work

Definitions

  • the invention relates to a method for bending at least a section of a rod-shaped material such as stirrups or reinforcing steel along an arc of a radius R, the material in front of the section to be bent from a bending crank rotatable about an axis during bending at a distance R of whose axis of rotation is detected and is guided past a bending device for bending. Furthermore, the invention relates to a device for bending at least a portion of a rod-shaped material such as wire bracket or reinforcing steel along a circular arc with a radius R comprising a bending device and a bending crank rotatable about an axis, which detects unbent material at a distance R to the axis.
  • a rod-shaped material such as stirrups or reinforcing steel along an arc of a radius R
  • GB-A 1 360 935 describes a prior art in which a free end of a tube is gripped by a bending arm which is rotatable about an axis. In order to bend the tube, it passes through, on the one hand, guide rollers and support rollers and, on the other hand, heating and cooling devices arranged in a ring around the tube to be bent. According to the description in GB-A 1 360 935, it is not possible with a corresponding device to bend pipes to a sufficient extent in the form of a circular arc. In order to overcome these disadvantages, GB-A 1 360 935 described, to arrange a pressure device downstream of the support rollers, which print on the sections of the tube to be bent. It is no longer necessary for the free end of the tube to be gripped by a bending arm.
  • the present invention is based on the problem of developing a method and a device of the type mentioned at the outset such that rod materials, such as, in particular, reinforcing steel of different diameters, can be bent with precise radii in one bending process without radius-bound bending molds, even without heating devices. It should also be possible to continuously adjust the bending radii between the minimum and maximum radii, which may be specified by design, without the need to replace bending tools.
  • the problem is solved procedurally in that for bending the section material is moved along a bending element of the bending device which is arranged at a distance R to the axis and which interacts with the material while simultaneously rotating the bending arm and interacts with it in such a way that in each case in a time interval relative to the bending element displaced unbent material of a length L corresponds to an arcuate section with the radius R and the length L of bent material.
  • the angular velocity of the bending crank and the translational movement are consequently coordinated with one another, if necessary forcibly coupled, in such a way that the material to be bent interacts with the bending element with respect to the longitudinal axis of the unbent material in a region perpendicular to the axis in order to ensure bending with exact radius.
  • the bending element is preferably a bending edge which forms a bending line along which the material is bent.
  • the bending edge or an element having the same effect can be rounded off, the radius of curvature, however, being smaller than the smallest bending radius to be bent.
  • the bending process is carried out with a bending tool, which is composed of the bending arm and the bending element, such as a bending edge, by a coupled rotary-pushing movement of the material to be bent, without the need for conventional radius-dependent bending shapes.
  • the bending moment acting over the entire bending curve only acts on the bending edge, since the stretching-upsetting process results in a higher strength in the bending curve than on the bending material that has not yet been bent in front of the bending edge; d. H. up to the bending edge, the material is always softer than in the bent part.
  • the bending itself takes place continuously in one go up to the desired bending angle.
  • the axis of the bending crank is displaced during the bending parallel to the longitudinal axis of the unbent material running at a distance R, the axis being synchronized with the displacement of the axis with respect to the longitudinal axis of the material Bending edge positioned perpendicular to the axis is shifted with material immovably or essentially immovably held.
  • the material to be bent is e.g. fixed or held by a clamping device, the bending edge being displaced translationally in the direction of the fixed point of the bending material in accordance with the progressive bending.
  • the axis, the bending crank and the bending edge arranged perpendicularly with respect to the longitudinal axis of the unbent material can be arranged in a stationary manner and material can be fed to the bending device in accordance with the length of the circular arc or arc section to be bent.
  • the translational or pushing movement of the bending edge and the axis of the bending arm and its rotational movement are derived from a single drive element according to a further embodiment of the invention. This can be achieved by e.g. two hydraulic cylinders connected to their work rooms exchange their work volumes.
  • both the translational movement of the bending crank axis and the rotation of the bending crank can be derived from a lever element pivotable about a fixed axis, the axis lying on a line on which the longitudinal axis of the material to be bent runs .
  • the teaching according to the invention can be used without conventional bending tools such as bending rollers a precise bending of rod-shaped materials of different cross-sections can be carried out.
  • the desired bending radius is adjusted by jointly adjusting the bending edge and the bending crank, ie the point at which the material to be bent is gripped by the bending crank at a distance from the axis of rotation. This adjustment can preferably be done via an adjusting spindle.
  • a device for bending at least a portion of a rod-shaped material such as wire bracket or reinforcing steel along a circular arc with a radius R comprising a bending device and a bending crank rotatable about an axis, which detects unbent material at a distance R from the axis, is characterized in that the Bending device for bending the material has a bending element such as a bending edge, that the bending edge is arranged perpendicular to the axis with respect to the longitudinal axis of the unbent material, that the distance between the bending edge and the axis is approximately the radius R, taking into account the material diameter, and that the bending crank the material taking into account the material diameter in approximately at a distance R from the axis, wherein during the bending a relative movement between the axis and the bending edge is excluded and along the bending edge material of length L can be passed, which corresponds to the length L of the current material to a circular arc section with the radius R .
  • the bending crank can be a bending arm, in the area of which the material faces away from the axis of rotation.
  • the bending crank preferably comprises a bending plate which can be rotated about the axis and along the radius of which a holding device which detects the material and which adjusts the bending radius is slidably arranged.
  • the distance between the axis of rotation and the point at which the material is gripped by the bending crank and the distance of the bending edge from the axis of rotation are synchronized by means of e.g. at least one spindle are adjustable.
  • the bending device has a receptacle, such as a groove or slot, running in the longitudinal direction of the unbent material, the front free end of which forms the bending edge.
  • the bending edge itself, it should be noted that this can of course also be replaced by an element with the same effect. It is only essential that the actual bending of the material takes place on this element.
  • the bending element is to be designed and arranged in such a way that the area in which unbent material changes into curved material runs where a connecting line between the axis and the area perpendicularly intersects the longitudinal axis of the material.
  • Another embodiment of the invention provides that the bending device of starts a carriage on which the bending crank is rotatably arranged, preferably in the form of a bending plate.
  • Fig. I is a plan view of a basic arrangement of a bending device is shown, which comprises the following essential components.
  • a rack (8) is slidably arranged on a base or base plate (1) and can be slid in the direction of the arrow (X) by a gear wheel (7).
  • the material is gripped by a bending crank (2) which can be rotated about an axis (N).
  • the axis (N) starts from the rack (8) and is located vertically below the bending edge (D).
  • the bending crank (2) is in turn by means of a stationary on the guide carriage (3), which is mentioned rigidly connected to the rack (8), arranged drive in the manner described below in rotary motion.
  • a gear wheel (5) is provided, by means of which the bending crank (2) is set in rotation.
  • a drive (6) emanates from the base plate (1) and sets a gear wheel (7) in rotary motion so as to shift the rack (8).
  • the base plate (1) has a longitudinal groove (P) within which the toothed rack (8) can be displaced with the rod guide slide (3) extending from it.
  • P longitudinal groove
  • the elements that can be seen in FIG. II are provided with the reference numerals that are indicated in FIG.
  • the bending crank (2) along the arrow (W) is synchronized with the feed speed (V) during the displacement of the rack (8) and thus the guide carriage (3) along the push line (X). rotated so as to bend the material into a circular arc (12) with a radius (R) and a bending angle (Z).
  • the radius (R) is the distance between the shear line (X) on which the axis (N) of the bending crank (2) runs and the neutral fiber (Y) of the material (11) to be bent, i.e. roughly the distance between the axis (N) and the bending edge (D) plus the radius of the material to be bent (11).
  • the material is bent to the circular arc (12) with a precise radius due to the synchronous pushing and rotating movement.
  • the material captured by the bending crank (2) bears against a contact surface (G) which is a surface facing away from the axis (N) in a guide groove or guide opening of the bending crank (2).
  • the connecting line (7a) between the bending edge (D) and axis (N) to the longitudinal axis of the unbent material (11) describes a right angle, that is, the area in which the unbent material changes into bent material, perpendicular to the axis of rotation (N) runs with respect to the longitudinal axis of the unbent material (11).
  • the material (11) to be bent lies in front of the bending edge (D) on the surface (G) of the bending crank (2). Then there is a synchronous rotary movement (W) of the bending crank (2) and pushing movement (X) of the rack (8) and thus the bending edge (D) in the direction of the arrow (L).
  • the material (11) is guided on the surface (G) by the rotary movement (W) during the bending process and in the groove (F) of the guide carriage (3) parallel to the push line (X).
  • the bending stress present on the bending edge (D) cannot push the material located in front of the bending edge upwards or downwards, that is to say not out of the neutral fiber of the bending material (11).
  • the thrust speed (V) is always the same as the peripheral speed (U) of the neutral fiber (Y).
  • the bending crank (2) and the guide slide (3) having the bending edge (D) form a bending tool, the bending crank (2) and guide slide (3) each being displaceable along (X) by the toothed rack (8) or an equivalent one Run out item.
  • the bending tool comprises a bending plate (13) which can be rotated about an axis (20).
  • a receptacle (15) for material (21) to be bent extends from the bending plate (13).
  • the receptacle (15) has a guide groove or a guide slot in order to provide a contact surface for the material (21) which corresponds to the contact surface (G) of the bending crank (2) according to FIG.
  • the receptacle (15) can be displaced in the direction of the radius of the bending plate (13) in order to be able to adjust the distance to the center (20) of the bending plate (13), that is to say its axis of rotation (20), to the desired extent.
  • a bending edge which is perpendicular to the longitudinal axis of the unbent material (21) and which is arranged perpendicular to the axis of rotation (20) and originates from a bending stone (14), can also be adjusted relative to the axis of rotation (20).
  • the rod-shaped material (21) is clamped on the one hand between the clamping jaws (17) and (18) outside the bending plate (13) and on the other hand along a parallel path Moving to the longitudinal axis of the unbent material guide element such as guide jaws (16) to the bending edge of the bending stone (14). Bending stone (14) and guide jaws (16) of course do not rotate with the bending plate (13).
  • adjusting devices (22) and (23) are provided which can be adjusted synchronously by means of a spindle (24).
  • the bending plate (13) starts from a bending slide (25) which can be moved along a bending carriage (26).
  • the bending plate In order to bend the material (21), the bending plate is moved away from the clamping jaws (17) and (18), of which the clamping jaw (17) is adjustable to adapt to materials of different diameters, depending on the length of the material to be bent, whereby the receptacle (21) is then in the position which is provided with the reference symbol (27) in FIG. III. Then, by means of a synchronous thrust rotary movement (rotary movement indicated by an arrow), the material (21) is bent to the exact radius to form an arc of the desired length and the desired radii.
  • a synchronous thrust rotary movement rotary movement indicated by an arrow
  • the bending tool i.e. the contact surface in the receptacle (15) and the bending edge, as well as the clamping jaws (17) and (18) and the guide jaw (16), are set to the axis of rotation (20) of the bending plate (13) .
  • the bending plate ie the bending slide (25)
  • the material (21) is then clamped between the clamping jaws (17) and (18), which emanate from the bending carriage (26). From position (B) along the Thrust path (S2) of the bending slide (25) with simultaneous synchronous rotary movement of the bending plate (13) by the angle (Z) until position (C) is reached in the direction of the clamping jaws (17) and (18).
  • the bending crank (2) is set in rotation by means of a piston rod (27) which meshes with a gear wheel (28) and which starts from a piston (29) with the working surface (F1) which can be displaced in a cylinder (30) with a stroke (a) .
  • the cylinder (30) is connected via a line (L) to a cylinder (31) in which a piston (32) can be displaced with the working surface (F2) by a stroke (b) from which a piston rod (33) extends , which is connected to a lifting rocker (34), via which a push rod (35) is displaceable, which fulfills the task of the rack (8) according to FIG.
  • the stroke length can be changed accordingly depending on the bending radius (R min ) to (R max ). This is to be illustrated by the reference numerals (c) and (d).
  • VI and VII show preferred embodiments of a bending device for the bending-free bending of rod materials and a functional diagram of these in principle.
  • a rod (36) to be bent is clamped (37) fixed, which is arranged during the bending stationary to a frame or a housing (38) of the bending device.
  • the unbent material (36) with its longitudinal axis (39) is fixed between two bearings (40) and (41), which in turn has a bending head (43) comprising a bending edge (42) in the front free area.
  • the bending head (43) can be part of the bearings (40) and (41) or connected to them.
  • the material (36) to be bent is surrounded by a bending arm (44) of a bending crank (45) which can be rotated about an axis (46).
  • the bending crank (45) with its axis of rotation (46) starts from a slide (47) which can be displaced in the housing or the frame (38) and is parallel to the longitudinal axis (39) of the unbent material (36).
  • a carrier rod (48) extending perpendicular to the longitudinal axis (39) extends from the slide (47) itself and in turn fixes the bearings (40) and (41) and thus the bending edge (42).
  • the bearings (40) and (41) are also displaceable, namely displaceably arranged parallel to the longitudinal axis (39) of the material (36) along an adjusting rod (49).
  • the adjusting rod (49) is based on spindles (50) and (51) which extend on the one hand perpendicular to the longitudinal axis (39) of the unbent material (36) and on the other hand parallel to the driving rod (48).
  • the spindles (50), (51) can preferably be adjusted synchronously via a roller chain (52) which is guided via chain wheels (53) and (54) arranged on the spindle ends.
  • the spindles (50) and (51) are rotatably received by bearing blocks (55) and (56).
  • the adjusting rod (49) is adjusted by means of the spindles (50) and (51), then on the one hand the clamping device (37) and on the other hand the counter bearing (40) and (41) are adjusted with the bending head (43). The latter are shifted accordingly along the driving rod (48).
  • an element (57) slidably surrounds the driver rod (48) from the counter bearing (41).
  • a push rod (58) extends from the latter, which extends around an axis ( 59) which is parallel to the axis (46) of the bending crank (45) and lies on a line (60) which is parallel to the longitudinal axis (39) of the unbent material (36), that is to say to the longitudinal axis of the adjusting rod (49) runs.
  • the axis (59) passes through an elongated hole (61) of the push rod (58) so that it can be adjusted in the longitudinal direction thereof to the axis (59).
  • the push rod (58) is fixed but rotatably connected to the slide (47) (reference number 62). This means that when the push rod (58) is pivoted, the carriage (47) moves parallel to the longitudinal axis (39).
  • the push rod (58) is via a push joint (67) rotatably connected to a rack (64) which extends parallel to the longitudinal axis (39) of the unbent material (36) and thus the line (60) and the direction of displacement (65) of the carriage (47), in order to with a Comb cam (66) of the bending crank (45).
  • the area meshing with the toothed rack (64) runs along a circular arc with the radius n about the axis of rotation (46) of the bending crank.
  • the thrust joint (67) connecting the push rod (58) to the rack (64) passes through an elongated hole (68) which extends along the longitudinal axis of the crank rod (58) and which therefore runs parallel to the longitudinal axis of the elongated hole (61).
  • the slide (47) and the rack guided in it are moved in the direction of the arrow (65).
  • the bending crank (45) is rotated by meshing with the rack (64) about the axis (46).
  • the material (36) detected by the bending arm (44) at the bending edge (42) is bent in a previously described manner about the bending angle Z on a circular arc, the radius R of which is the distance between the axis of rotation (46) of the bending crank (45) and the longitudinal axis (39) of the unbent material (36).
  • the material (36) to be bent can be bent to the desired radii, radii between RMa and RMi being adjustable according to FIG. VI.
  • the difference between these radii VW is the adjustment path that can be traversed by means of the spindle (50) and (51).
  • the material is detected by the bending arm (44) at a distance R from the fulcrum (46) of the bending crank (45).
  • a receptacle that is adjustable along the bending arm (45) is provided.
  • position (I) is the starting position and position (II) is the end position shown.
  • the pivot point (46) of the bending crank (45) shifts by the path (U), which is equal to the length of the material bent around the bending edge (42).
  • the direction of translation (65) is predetermined by a guide shaft (69) which receives the slide (47) and whose longitudinal axis extends parallel to the adjusting rod (49).
  • the push rod (58) traverses an angle Y from position (I) to position (II).
  • the bending slide (45) is displaced by the distance (U) in the longitudinal direction of the toothed rack (64).
  • the bending crank (45) is rotated by the arc length (V) around the axis (46).
  • the arc length (V) corresponds to the distance between the thrust joints (67) and (67 ') in position (I) and (II) minus the translation path (U) of the slide (47).

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

Abstract

Un procédé et un dispositif permettent de plier au moins une section d'un matériau en barre. Le matériau à plier est saisi par une manivelle de pliage (2, 13, 45) dont l'axe de rotation (N, 20, 46), par rapport à l'axe longitudinal (39) du matériau non plié, est perpendiculaire à un bord (D) de pliage, au niveau duquel le matériau est plié. Afin de plier le matériau le long d'un arc de cercle, le bord (D) de pliage, ainsi que l'axe de rotation (N, 20, 46), sont décalés parallèlement à l'axe longitudinal (39) du matériau non plié en fonction de la longueur de l'arc du matériau plié. Pendant le pliage, le matériau est fermement retenu, de manière qu'il ne puisse pas se déplacer.

Claims (17)

  1. Procédé de pliage d'au moins une section d'un matériau (11,36) en barre, tel qu'acier d'armatures, le long d'un arc de cercle (12, U) d'un rayon (R), le matériau étant saisi devant la section à plier par une manette à plier (45) rotative pendant le pliage autour d'un axe (N,20,26) avec un écart (R) de l'axe de rotation de la manette et étant, pendant le pliage, entraînée par un équipement de pliage (3,40,41,43,44,45), le matériau non plié déplacé dans un intervalle de temps d'une longueur (L) correspondant à un arc de cercle d'un rayon (R) et à la longueur (L) de matériau plié,
    caractérisé en ce que
    pour le pliage de la section, du matériau (11) est déplacé le long d'un élément de pliage (3, 40, 41, 43, 44, 45) à action réciproque avec le matériau et agissant réciproquement avec cet élément, que l'axe de la manette de pliage (45) est déplacé pendant le pliage parallèlement à l'axe longitudinal se situant à un écart (R) du matériau non plié, que, synchrone au déplacement de l'axe, l'élément de pliage est déplacé alors que le matériau est immuable ou maintenu essentiellement immuable et que la section de l'élément de pliage produisant le pliage se situe sur une ligne partant de l'axe et coupant verticalement l'axe longitudinal du matériau non plié.
  2. Procédé de pliage d'au moins une section d'un matériau en barre (11, 36), tel qu'acier d'armatures, le long d'un arc de cercle (12, U) d'un rayon (R), le matériau étant saisi devant la section à plier par une manette à plier (45) rotative pendant le pliage autour d'un axe (N, 20, 26) avec un écart (R) de l'axe de rotation de la manette et étant, pendant le pliage, entraînée par un équipement de pliage (3, 40, 41, 43, 44, 45), le matériau non plié déplacé dans un intervalle de temps d'une longueur (L) correspondant à un arc de cercle d'un rayon (R) et à la longueur (L) de matériau plié,
    caractérisé en ce que
    pour le pliage de la section, du matériau est déplacé le long d'un élément de pliage (D) de l'équipement de pliage (3, 40, 41, 43, 44, 45), disposé à un écart R de l'axe (N) et à action réciproque avec le matériel, que l'axe de la manette de pliage (45) et l'élément de pliage disposé perpendiculairement par rapport à l'axe longitudinal du matériau non plié sont disposés de façon stationnaire et sont amenés à l'équipement de pliage en fonction de la longueur de l'arc de cercle respectif à plier ou de la section d'arc de cercle du matériau.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    le mouvement de translation ou transversal du bord de pliage (D) ainsi que le mouvement de rotation de la manette de pliage (45) sont dérivés d'un élément moteur.
  4. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que
    le matériau est tiré ou poussé en continu le long de l'élément de pliage, tel que le bord de pliage (D).
  5. Procédé selon au moins la revendication 1,
    caractérisé en ce que
    l'écart entre la section de matériau (11) saisie par la manette de pliage (45) et l'axe de rotation d'une part et l'écart entre le bord de pliage et l'axe (N) d'autre part sont déplacés en synchrone et en continu.
  6. Dispositif de pliage d'au moins une section d'un matériau en barre (11, 36), tel qu'acier d'armatures, le long d'un arc de cercle (12, U) d'un rayon (R), comprenant un équipement de pliage ainsi qu'une manette de pliage (45) rotative autour d'un axe (N, 20, 46) et saisissant du matériau non plié à l'écart (R) de l'axe,
    caractérisé en ce que
    l'équipement de pliage (3, 40, 41, 43, 44, 45) pour le pliage du matériau (11) présente un élément de pliage (D, 42) à action réciproque avec le matériau, que l'élément de pliage est disposé, par rapport à l'axe longitudinal (39) du matériau non plié, perpendiculairement à l'axe (N, 20, 46), que l'écart entre l'élément de pliage et l'axe se situe environ dans le rayon R en tenant compte du diamètre du matériau et que la manette de pliage (2, 45) saisit le matériau, en tenant compte du diamètre du matériau, approximativement à l'écart (R) de l'axe, un mouvement relatif entre l'axe et l'élément de pliage étant exclu pendant le pliage et du matériau pouvant être passé le long de l'élément de pliage sur une longueur correspondant à la longueur du matériau (E) plié à cet instant en une section d'arc de cercle d'un rayon R.
  7. Dispositif selon la revendication 6,
    caractérisé en ce que
    la manette de pliage comprend un plateau de pliage (13) rotatif autour de l'axe (20), le long du rayon duquel est disposé de façon déplaçable un équipement de serrage ou de préhension (15) saisissant ou arrêtant le matériau.
  8. Dispositif selon la revendication 6 ou 7,
    caractérisé en ce que
    du matériau non plié (11) se trouve devant l'élément de pliage, tel que bord de pliage (D) sur une surface d'appui (G) de la manette de pliage (2, 15) pour la préhension du matériau pendant la rotation de la manette de pliage.
  9. Dispositif selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    l'équipement de pliage (3) présente en direction longitudinale du matériau non plié (11) un logement, tel que rainure ou fente (F), l'extrémité libre duquel dirigée vers la manette de pliage (2) forme le bord de pliage (D).
  10. Dispositif selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    l'écart (R) entre la section de matériau saisie par la manette de pliage (2, 13) et l'axe de rotation (N, 20) d'une part et l'écart entre le bord de pliage (D) et l'axe d'autre part sont réglables en continu.
  11. Dispositif selon la revendication 10,
    caractérisé en ce que
    l'écart (R) est réglable en synchrone et de préférence au moyen d'une broche.
  12. Dispositif selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    l'équipement de pliage (3, 14) part d'un chariot (8, 25) sur lequel est disposée de façon rotative la manette de pliage (3, 21).
  13. Dispositif selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    le mouvement de rotation et de translation peut être généré par un élément moteur (A) commandant deux cylindres (30, 31) en relation réciproque, les capacités de travail desquels sont interchangeables pour le mouvement de rotation et de translation synchrone.
  14. Dispositif selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    aussi bien le mouvement de translation de l'axe de la manette de pliage (46) sont simultanément dérivables d'un élément à levier (58) pivotable pendant le pliage autour d'un axe (59) fixe, l'axe se trouvant sur une ligne (60) sur laquelle passe l'axe longitudinal du matériau (36) à plier.
  15. Dispositif selon au moins d'une des revendications précédentes,
    caractérisé en ce que
    le bord de pliage (42) se trouve sur la ligne (60) et est déplaçable le long d'un élément de réglage à barre (49).
  16. Dispositif selon la revendication 15,
    caractérisé en ce que
    l'élément de réglage à barre (49) est réglable en continu perpendiculairement à la ligne (60) de préférence au moyen d'au moins une broche (50, 51).
  17. Dispositif selon au moins l'une des revendications précédentes,
    caractérisé en ce que
    la manette de pliage (45) part d'un chariot déplaçable le long de la ligne (60), duquel part un élément de guidage (48) le long duquel le bord de pliage (42) est déplaçable perpendiculairement à la ligne (60) en fonction de la position de l'élément de réglage à barre (49).
EP91907412A 1990-04-14 1991-04-12 Procede et dispositif de pliage d'au moins une section d'un materiau en barre Expired - Lifetime EP0524991B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91907412T ATE102094T1 (de) 1990-04-14 1991-04-12 Verfahren und vorrichtung zum biegen von zumindest einem abschnitt eines stabfoermigen materials.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012095A DE4012095A1 (de) 1990-04-14 1990-04-14 Verfahren und vorrichtung zum biegen von zumindest einem abschnitt eines stabfoermigen materials
DE4012095 1990-04-14

Publications (2)

Publication Number Publication Date
EP0524991A1 EP0524991A1 (fr) 1993-02-03
EP0524991B1 true EP0524991B1 (fr) 1994-03-02

Family

ID=6404429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91907412A Expired - Lifetime EP0524991B1 (fr) 1990-04-14 1991-04-12 Procede et dispositif de pliage d'au moins une section d'un materiau en barre

Country Status (4)

Country Link
EP (1) EP0524991B1 (fr)
AU (1) AU7679991A (fr)
DE (2) DE4012095A1 (fr)
WO (1) WO1991016155A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108015135B (zh) * 2017-12-01 2019-11-29 四川金网通电子科技有限公司 一种钣金折弯定位工装

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB749159A (en) * 1953-05-14 1956-05-16 Western Electric Co Improvements in or relating to draw bending machines
US3899908A (en) * 1974-09-12 1975-08-19 Boris Stepanovich Somov Device for bending pipes with simultaneous upsetting
WO1985000023A1 (fr) * 1983-06-16 1985-01-03 Enaco (Australia) Pty. Ltd. Appareil et procede de deformation de tube

Also Published As

Publication number Publication date
EP0524991A1 (fr) 1993-02-03
DE59101109D1 (de) 1994-04-07
DE4012095A1 (de) 1991-10-17
WO1991016155A1 (fr) 1991-10-31
AU7679991A (en) 1991-11-11

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