EP1700647A1 - Dispositif de cintrage pour les pièces en forme de tube et de barre - Google Patents

Dispositif de cintrage pour les pièces en forme de tube et de barre Download PDF

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Publication number
EP1700647A1
EP1700647A1 EP05005045A EP05005045A EP1700647A1 EP 1700647 A1 EP1700647 A1 EP 1700647A1 EP 05005045 A EP05005045 A EP 05005045A EP 05005045 A EP05005045 A EP 05005045A EP 1700647 A1 EP1700647 A1 EP 1700647A1
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EP
European Patent Office
Prior art keywords
bending
mandrel
workpiece
groove
sliding
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.)
Granted
Application number
EP05005045A
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German (de)
English (en)
Other versions
EP1700647B1 (fr
Inventor
Frank Hacker
Werner Maier
Patrik Schlund
Jürgen Wolf
Dietmar Sautter
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.)
Wafios AG
Original Assignee
Wafios AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wafios AG filed Critical Wafios AG
Priority to EP05005045A priority Critical patent/EP1700647B1/fr
Priority to AT05005045T priority patent/ATE397501T1/de
Priority to DE502005004340T priority patent/DE502005004340D1/de
Priority to US11/369,256 priority patent/US7293444B2/en
Publication of EP1700647A1 publication Critical patent/EP1700647A1/fr
Application granted granted Critical
Publication of EP1700647B1 publication Critical patent/EP1700647B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the invention relates to a bending device for rod and tubular workpieces, with a movable bending head on which a rotatable bending mandrel with a bending groove for conditioning the workpiece to be bent and a relative to this movable and concentric to him rotatable clamping device for clamping the machined Workpiece between her and the bending mandrel sitting, and with a feed device for the workpiece, wherein the bending device is arranged for both a right bending, as well as for left bending of the workpiece around the mandrel and the workpiece at a predetermined bending direction on one side and at a Changing the bending direction on the other side of the mandrel against this can be applied, the bending head also carries a Faltenglätter, the bending mandrel - as seen in the feed direction of the workpiece - is directly upstream and two sliding jaws, with a predetermined bending direction between which is the workpiece and each of which is provided on its side facing
  • Wrinkle smoothers are needed in the automated bending of pipes with small wall thicknesses and at the same time small bending radii, wherein they are upstream of the mandrel, seen in the feed direction of the tube. If the tube on the one hand clamped between the tensioning device and the mandrel and also taken up between the two sliding jaws of the Faltenglätters, so there is no possibility during the bending process for the tube to dodge uncontrollably on the inside radius. It will possible to bend even thin-walled tubes with a small bending radius. Therefore, wrinkles are used in pipe bending to improve the bending result. However, the use of Faltenglättern in such bending machines in which the bending head is stationary, problematic.
  • a machine with such a folder smoother is out of the DE 696 24 723 T2 known, there for operation, the sliding jaws of the Faltenglätters via attached on its outer circumference locking elements, which are mounted spaced apart in the longitudinal direction, connected to each other and clamped against each other.
  • the wrinkle smoother from the DE 201 18 444 U1 is permanently attached to the machine.
  • a tube bending apparatus of the type mentioned which is set up for a right bending, as well as for left bending of the workpiece to a mandrel and thereby uses a Faltenglätter that can be used in both bending directions.
  • the wrinkle smoother has two sliding jaws, one of which is movable towards the other.
  • a sliding jaw, which sits on the side of the bending tool - seen relative to the workpiece - is mounted on a holder which, although concentric with the bending mandrel rotatable, but not movably attached to this at the bending head.
  • the invention now seeks to provide an improved bending device with a Faltenglätter of the aforementioned type which, while largely avoiding the disadvantages known from the prior art, a very accurate adjustment of the mold groove of the sliding jaw of the Faltenglätters on the side of the mandrel both in terms of Workpiece, as well as with respect to its entry into the forming groove of the mandrel particularly simple and quick and allows an automatic adjustment of the alignment to the workpiece during operation and even when changing the bending device, and also one for use in such a two Biegeritch convertible bender proposed to suggest fold smoothing arrangement.
  • a bending device for rod and tubular workpieces of the aforementioned type in which the sliding jaw sits on the side of the bending mandrel on a parallel to the axis of rotation of the bending mandrel support axis on which it is arranged freely rotatable and the bending mandrel back or .
  • said sliding jaws is formed so that it can be applied by moving the support axis to the bending mandrel with the bending mandrel facing the end of its forming groove to the bending groove of the bending mandrel that its forming groove tangentially that connects the bending mandrel.
  • the bending device according to the invention makes it possible to use the designed at her Faltenglätter construction both for left-hand bending, as well as for right-bending, without the need for a conversion must take place.
  • the bending direction and the individual elements that form the Faltenglätter together with the other elements of the device that must be changed in the change of bending direction, together and automatically be recomposed, which can be done programmatically even without the presence of an operator, so that just this great disadvantage in known bending machines, in which when changing the bending direction an operator due to the conversion of the Faltenglätters had to be present, completely eliminated.
  • the respective sliding jaws of the Faltenglätters sitting on its support axis not only freely rotatable, but also freely in the axial direction movable (at least over a certain displacement distance), so that when applying against the bending groove of the bending mandrel as well as laterally against the workpiece an alignment movement perform not only in the direction of rotation about its support axis, but also axially along the support axis and thus an automatic, optimal application can be made to the bending groove of the bending mandrel.
  • This can preferably also be improved by the fact that the diameter of the support axis is slightly smaller than the Aufsteckbohrung of the sliding block, so that the sliding block can also take an at least small tilting position relative to the support axis.
  • the support axis of the sliding jaw of the Faltenglätters on the side of the bending mandrel linearly towards the bending mandrel or away and in a plane perpendicular to the bending axis (namely parallel to the transport direction of the workpiece) is movable, the end portion of the forming groove this sliding jaw, which faces the bending mandrel, are moved exactly as close to the bending mandrel, until the mold groove of the sliding jaw tangentially enters into its end region relative to the bending groove of the bending mandrel and thereby can be applied to the bending groove of the bending mandrel.
  • this end portion of said sliding jaw is formed with its mold groove so that it can be accurately inserted when creating the bending groove of the mandrel and thereby adapted to the shape, whereby during operation of the device, a high accuracy in aligning the workpiece to be bent in its Enema is ensured in the bending groove of the bending mandrel.
  • the wear on the tip of this sliding jaw of the Faltenglätters is kept very low.
  • the respective sliding jaws of the Faltenglätters in the direction of the bending mandrel continuously under a certain bias sets that can be applied mechanically (for example by a biasing spring) or hydraulically or in another suitable manner also be ensured that even with a certain grinding of the intermeshing parts of the sliding jaw and the mandrel during operation of the bending device in each case immediately and automatically a corresponding adjustment to always accurate fit conditioning of these parts into each other.
  • the bending device according to the invention is used as the other sliding jaws out and away from this movable sliding jaw, which is on the same side of the workpiece as the clamping device, because on this page the space required for the required mobility is easily realized.
  • a further preferred embodiment of the bending device according to the invention also consists in the fact that a control is provided with the only to be made to change the bending direction traversing and / or rotational movements of the various structural elements on the bending head, after which it has been lowered so far that all these elements are below the clamped workpiece in the bending device, whereby then a free and unobstructed by the workpiece movability of these elements can be done below the workpiece.
  • the wrinkle smoother comprises sliding elements in most cases such that on each side of the workpiece the sliding element comprises a sliding jaw. In certain cases, however, it may also be preferred if the fold smoother has more than one, preferably two, directly successively arranged sliding jaws on at least one side of the workpiece.
  • the fold smoother on the side of the workpiece on which the bending mandrel lies, two in the feed direction of the workpiece arranged one behind the other, on a common to the Have support axis freely rotatable carrier mounted sliding jaws, which have mirror-symmetrical shapes to each other on the common carrier with respect to a plane which is routed through the support axis and perpendicular to the feed direction of the workpiece.
  • the carrier is also provided with a device with which the distance between the two mounted on the support slide shoes can be changed or adjusted.
  • the support axis is preferably arranged displaceably on a support ring, which in turn concentrically on the shaft of the bending mandrel, rotatable relative thereto, sitting over which the corresponding rotational movements can then be carried out at a change of the bending direction.
  • the support ring is provided with a radially projecting portion on which the support shaft is slidably supported and which forms at its projecting end portion a radially outwardly open fork bracket which receives a sliding block, which in turn sits rotatably on a support means which vertically is movable to the transport direction of the workpiece.
  • the support shaft is advantageously seated on a support block, which in turn is displaceably arranged in a above the fork bracket, radially outwardly extending guide groove of the radially projecting portion of the support ring, said guide groove is closed at its radially outer end by a transverse bar, in a Adjusting screw rotatably seated, which is in engagement with the support block and by means of which it is positionally adjustable in the guide groove.
  • the support means preferably comprises a support on the bending head, movable relative to this and guided on linear rails support bridge, by means of which the lateral deflections for carrying out a rotational movement of the support ring can be performed.
  • Another preferred embodiment of the bending device according to the invention also consists in that the sliding jaw, which is located on the side of the clamping device, on the opposite side of its mold groove to this form with respect to a longitudinal longitudinal plane of this sliding jaw, which is parallel to the Werk Swisszu classroomides and the axis of rotation of the bending mandrel has mirror-symmetrically arranged further shaping groove.
  • this sliding blocks for changing the bending direction is movable on the other side of the bending mandrel that he is there with his other form of groove against the workpiece can be applied.
  • the clamping device is connected on the side of the clamping device with a drive device, via which it is movable to change the bending direction both parallel to the feed direction of the workpiece, as well as in a direction perpendicular to this on the other side of the mandrel.
  • all sliding jaws are seated on a common support plate, on which the sliding jaw located on the same side of the workpiece as the clamping device is arranged both in the direction perpendicular to the forming groove of the other sliding jaw, as well as adjustable parallel thereto, wherein for changing the bending direction, this support plate with the sliding blocks carried by it is pivotable about an axis of rotation of the bending mandrel parallel axis of rotation, which lies in a plane which passes through the axis of rotation of the bending mandrel and parallel to the transport direction of the workpiece.
  • a likewise very compactly constructed bending device in which the change of the bending direction including the corresponding changes in position of the parts of the Faltenglätters can be performed easily and quickly.
  • the invention further relates to a Faltenglätteran extract which is particularly suitable for use in one of the above-mentioned bending device according to the invention, said bending device is provided for rod and tubular workpieces with a bending mandrel having a bending groove and both for a right bending, as well is arranged for left bending, wherein the fold smoothing arrangement according to the invention comprises two sliding jaws for two-sided contact with the workpiece and each of these sliding jaws comprises a forming groove for abutment against the workpiece, and wherein at least one of the sliding jaws to the other is movable and both sliding jaws so on the bending device are attachable, that they are traversable for changing the bending direction to the bending mandrel of the bending device in a plane parallel to the axis of rotation of the bending mandrel and the feed direction of the workpiece mirror image arrangement of their forming grooves, wherein fiction According to the sliding jaws, which is provided for the arrangement on the side of the mand
  • This fold smoothing arrangement according to the invention can be used in particular in one of the above-described bending devices according to the invention; However, you can independently independently configure them as a kit that can be supplied as a retrofit to a bending device for rod and tubular workpieces and installed there, which then this bending device to a bending device of the type according to the invention, as described above, convertible is.
  • Fig. 1 shows (obliquely from above in front) a perspective view of a bending device 1 just before performing a right bending operation, while in Fig. 2, a same perspective oblique view of the same bending device 1 is shown, but in the initial state before a left bending operation.
  • the bending device 1 comprises essentially three important devices, namely a bending head 2 (with a tensioning device 3), a slide rail 4 (as a feed device) and a fold smoother 5. These three devices are used for producing bends pre-assembled lines or pipes 6, at which a good Unformten should be achieved without wrinkling or cracking on the pipe 6.
  • the bending head 2 can be moved in its entirety on a horizontal trajectory a and a vertical trajectory b , by means of a suitable (but not shown in the figures) drive.
  • the bending head 2 consists of a support body 2 on which a bending mandrel 7, which is rotatable about a central axis M, is arranged on top. Laterally on this is a tubular workpiece 6 (with a relatively small wall thickness) in a bending mandrel 7 attached, extending over three sides thereof the same shape groove 8, the groove shape of the shape of the facing outer contour of the tube 6 is substantially adapted.
  • the tube 6 is fed in the direction c by a (not shown in the figures) transport device from which exits via a (not shown in the figures) collet by means of which it can be kept fixed in position in a certain position at any time. By means of the feeder or the collet, it is also possible to rotate the tube 6 about its longitudinal axis in the direction of rotation d , in both directions of rotation.
  • the Faltenglätter 5 ensures that the tube 6 during bending forms no wrinkles (on the inside) or tears (on its outside).
  • the bending mandrel 7 is laterally associated with the clamping device 3 with a clamping bracket 9, which carries on its side facing the bending mandrel 7 an interchangeable clamping jaws 10, in which, facing the pipe to be bent 6, a forming groove 11 of a facing side of the outer contour of the pipe. 6 appropriate shape and size is formed.
  • a linear guide rail pair is arranged on the side facing the bending head 2, namely on the left side and right side of the bending mandrel 7 each have a linear guide rail 13 is mounted, in Fig. 1, only the guide rail 13 on one side, in FIG. 2 but the guide rails on both sides is / are recognizable.
  • each linear guide rail 13 slidably mounted a carriage 14.
  • the carriage 14 of the linear guide rail pair are connected to each other via a bridge plate 15 to which a flange 16 is attached with a slot 17.
  • a flange 16 is attached with a slot 17.
  • threaded pins 18 are screwed through which a limitation of the effective length of the elongated hole 17 can take place.
  • a flange 25 which has centrally in the groove 24 for positioning protruding engaging strip 26.
  • the flange 25 is fixed with two screws 27 on the bar 22 and has at its end facing the bending mandrel 7 an upwardly projecting shoulder 28, on the upper sides of a sliding block 40 by means of a screw 41 and a sleeve 42 is rotatably mounted.
  • the sliding block 40 is received by a fork mount 44 at the end of a radially projecting section 45 the support ring 43 includes.
  • a radially aligned longitudinal recess 46 is introduced, which is aligned in the direction of the axis of rotation of the support ring 43 (and thus to that of the bending mandrel 7).
  • a support block 47 is seated on the top of a stepped bore 48 is mounted with a slot in which a bolt 49 is seated, which secures the support block 47 against lifting from the recess 46 and yet a relative displacement of the support block 47 allowed in the limits of the slot in the direction of the mandrel 7 toward or away from this.
  • the recess 46 is closed at its radially projecting end by means of a transverse plate 50 which is fixed on both sides of the recess 46 each with a screw 51 on the support block 47 and centrally carries an adjustment screw 52, by means of which the support block 47 is moved in the recess 46 by appropriate screwing can be.
  • the support block 47 projects on the bending mandrel 7 end portion facing a support axis 53 in the direction parallel to the axis of rotation of the mandrel 7 upwards.
  • a sliding block 54 with a bore 55 into which the support shaft 53 protrudes.
  • the sliding block 54 is placed only on the support shaft 53 so that it sits freely rotatable on this and is also displaceable in the axial direction.
  • the inner diameter of the bore 55 may also, if desired, be made slightly larger than the outer diameter of the support shaft 53, so that the sliding block 54 can perform a certain, albeit small, tilting movement relative to the support shaft 53.
  • the sliding block 54 is provided on its side facing the workpiece 6 with a shaping groove 56 in its longitudinal direction, which serves to rest against the facing outer contour of the workpiece and whose shape corresponds to the shape of this outer contour substantially complementary.
  • the former After adjusting the distance of the support block 47 from the mandrel 7, the former can be fixed in position from above by means of the screw bolt 49, if desired.
  • the support block 47 may also be preloaded in the direction of the bending mandrel 7 by means of a biasing spring (not shown in the figure) between it and the transverse plate 50, which also permits continuous adjustment in the event of wear on the sliding block 54.
  • the overall shape of the sliding block 54 is, as can be seen from Fig. 4, so executed that it is formed in approximation to the bending mandrel 7 in adaptation to the bending groove 8, so that when the bending mandrel 7 facing the end of the forming groove 56 comes in the bending groove 8 to the plant, the forming groove 56 ensures a tangential inlet into the bending groove 8 of the mandrel 7, wherein the along the mold groove 56 of the sliding block 54 running Pipe 6 tangentially enters the bending groove 8.
  • this meshing of the end portion of the sliding block 54 and the bending groove 8 of the bending mandrel 7 is shown very clearly, in which respect express reference is made to the drawings.
  • FIG. 6 which essentially shows the arrangement of FIG. 4 (albeit in a slightly different orientation of the bending mandrel 7), the attachment of the bending mandrel 7 can be seen very well:
  • the mandrel 7 is pulled via a pull rod 57 and a nut 58 in a corresponding (not shown) recording, whereby a deflection of the mandrel 7 is reduced during tube bending.
  • This also makes it possible to carry out a very rapid tool change and to reduce the standstill of the machine during conversion.
  • the tool set consisting of a bending mandrel holder 65, a support ring 43, a transverse plate 50, a support block 47, the sliding block 54 and the mandrel 7, can then be removed together by loosening the nut 58 and replaced by another set of tools.
  • the adjustments can be performed outside the machine.
  • the sliding block 54 is applied to the corresponding side of the bending mandrel 7 by the support block 47 is displaced in the recess 46 corresponding to the bending mandrel 7 back.
  • a lateral displacement of the plate 15 in the direction of the arrow is achieved by extending the corresponding adjusting cylinder 19 by means of the corresponding threaded pin 18 ) and this movement via the bar 22, the flange 25, the sliding block 40 and the fork bracket 44 converted into a corresponding rotational movement of the support ring 43.
  • the sliding jaw 54 has a completely symmetrical design relative to its median plane XX (which runs through the central axis of its support axis 53 perpendicular to the longitudinal center line of its shaping groove 56) (compare, for example, the diagrammatic illustration of the sliding block 54 in FIGS. 4 and 6) in this second fine adjustment only the setting of the exact rotational position of the support shaft 48, ie the exact positioning of the bridge plate 15 by the corresponding cylinder 19 and the associated adjustment screw 18 to on this other side of the mandrel 7 a precise tangential orientation of the mold groove 56 of Sliding jaw 54 to reach tangential inlet of the workpiece 6 there in the bending groove 8 of the mandrel 7.
  • the wrinkle smoother 5 can then be fully automatically integrated into the operation of the bending device 1.
  • the folding smoother 5 comprises, in addition to the sliding jaw 54, a further sliding jaw 60 (cf., FIGS. 1 and 2) which, in the illustration of FIGS. 1 and 2, faces the sliding jaw 54 relative to the tube 6 and is designed as a rectangular block element in plan view , which is provided on its two longitudinal sides (one of which faces the tube 6) each having a longitudinal shaping groove 59 whose shape is also (at least substantially) complementary to the outer contour of the pipe or workpiece 6 facing it.
  • a further sliding jaw 60 cf., FIGS. 1 and 2 which, in the illustration of FIGS. 1 and 2, faces the sliding jaw 54 relative to the tube 6 and is designed as a rectangular block element in plan view , which is provided on its two longitudinal sides (one of which faces the tube 6) each having a longitudinal shaping groove 59 whose shape is also (at least substantially) complementary to the outer contour of the pipe or workpiece 6 facing it.
  • this sliding jaw 60 is applied against the tube 6, so that there the tube 6 is covered by the sliding blocks 54 and 60 on both sides and in its passage through them, the occurrence of wrinkles (on the side of the sliding block 54) and cracks (on the side of the sliding jaw 60) is avoided.
  • the sliding block 60 is adjustable relative to the sliding block 54 (perpendicular to the feed direction of the tube 6) and is moved away from the tube 6 in the loading position (not shown in the figures) for the tube 6 as well as the clamping device 3.
  • the slide rail 4 is mounted on the bending head 2 and includes two spindle drives 70 and 71, via which the sliding jaw 60 can be positioned in one plane.
  • the slide 4 is always positioned with respect to the axis of the tube 6 on the side of the clamping block 9.
  • the sliding jaw 60 rests on the tube 6 during operation of the device with its shaping groove 59.
  • the slide 4 has to perform different functions during the bending process: So it runs z. B. with the pipe 6, it pulls back or pushes it, for example, to avoid cracking in the pipe material.
  • the slide rail 4 is also used for positioning a support member on which the clamping block 9 with the clamping jaws 10, and for pivoting the other sliding block 54 (about its support axis 53) when changing the bending direction.
  • material for the two sliding blocks 54 and 60 As material for the two sliding blocks 54 and 60, a material with good sliding properties, which is wear-resistant and has a high load capacity used. Particularly suitable for this purpose, a material made of aluminum bronze has proven, which is commercially available under the name "Ampco" .
  • Fig. 1 the starting position of the bending device 1 is shown for a right turn.
  • the fold smoother 5 abuts on the sliding jaw 54 with its front portion on the rear side of the bending mandrel 7A.
  • the rear (in Fig. 1 hidden by the bending head 2) cylinder 19 is extended.
  • To switch to a left turn drives after a release of the tube 6 by the clamping device 3 and the sliding jaws 60 and lowering the bending head 2 vertically down the slide 4 with the sliding jaw 60 in the direction c behind the fulcrum (support shaft 53) back, then moved laterally in the direction of a and pivots it with the sliding jaw 60, the sliding block 54 (see illustration from Fig. 5A to 5E).
  • the bending head 2 is raised from below and the tube 6 is inserted with the clamping device 3 open and jaws 60 open in the mold groove 56 of the sliding block 54 and the bending groove 8. Thereafter, the sliding jaw 60 as well as the clamping jaws 10 is applied laterally against the tube 6 and thus the initial position of the bending device 1 shown in Fig. 2 for a left bending of the tube 6 is reached.
  • Fig. 2 shows the initial position of the bending device (with the Faltenglätter 5) before the start of the left bending.
  • FIGS. 5A to 5E different drainage phases during pivoting of the sliding jaws 54 and 60 of the fold smoother 5 from a starting position to right bending into a converted starting position for left bending are finally shown, in a very basic representation.
  • FIGS. 5A to 5E illustrations of individual relative positions of the sliding jaws 54 and 60 during conversion and pivoting from a starting position for right bending (FIG. 5A) to a starting position for left bending (FIG. 5E) are shown, only in principle for clarity, only a few important elements are illustrated in their relative positioning to each other.
  • Fig. 5A shows (in plan view) the bending mandrel 7 (with the bending groove 8, shown in dashed lines), the sliding jaws 60 and about the support shaft 53 pivotable sliding blocks 54 which is guided in the radially projecting portion 45 of the support ring 43, the latter in the manner described above by the (not visible in FIGS. 5A to 5E) sliding block 40 via a lateral movement of the bar 22 can be slightly twisted.
  • the mandrel 7 is first adjusted to its new position for left bending, wherein simultaneously the sliding jaw 60 via the slide rail 4 by actuation of the drive 70 in the direction of the arrow k moved parallel to the feed direction of the (not shown in FIGS. 5A to 5E) workpiece or tube 6 until its lying in the illustration of Fig.
  • a position is reached, in which the sliding jaw 60 facing side of the sliding block 54 is oriented perpendicular to the transport direction of the workpiece 6, in which case the entire facing her front of the sliding jaw 60 abuts her.
  • the sliding jaw 60 will no longer be moved in the direction k , but only more in the direction l along the front of the sliding block 54 until its leading edge lying in Fig. 5C lower right, seen in the direction l , is moved beyond the position of the support shaft 53 addition ,
  • the sliding jaw 60 continues to move in the direction / and additionally in the direction m while being moved simultaneously, and tilted with its leading edge lying on the bottom right in FIG. 5D, which continues to abut against its facing the front of the sliding block 54, the latter in the direction of rotation w , Fig. 5D shows such an intermediate position.
  • the end position shown in Fig. 5E (as a starting position for a left bend) is achieved after the sliding jaw 60 was moved only in the direction m in a position which is mirror image of the position of Fig. 5A (relative to a mirror plane through the center axis of the bending mandrel 7 and parallel to the transport direction of the workpiece 6 extends) is located.
  • the other sliding jaw 58 is also in a mirror-symmetrical position to its position from FIG.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP05005045A 2005-03-08 2005-03-08 Dispositif de cintrage pour les pièces en forme de tube et de barre et dispositif de lissage de pli Active EP1700647B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05005045A EP1700647B1 (fr) 2005-03-08 2005-03-08 Dispositif de cintrage pour les pièces en forme de tube et de barre et dispositif de lissage de pli
AT05005045T ATE397501T1 (de) 2005-03-08 2005-03-08 Biegevorrichtung für stab- und rohrförmige werkstücke und faltenglätteranordnung
DE502005004340T DE502005004340D1 (de) 2005-03-08 2005-03-08 Biegevorrichtung für stab- und rohrförmige Werkstücke und Faltenglätteranordnung
US11/369,256 US7293444B2 (en) 2005-03-08 2006-03-07 Bending apparatus for rod-shaped and tubular workpieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05005045A EP1700647B1 (fr) 2005-03-08 2005-03-08 Dispositif de cintrage pour les pièces en forme de tube et de barre et dispositif de lissage de pli

Publications (2)

Publication Number Publication Date
EP1700647A1 true EP1700647A1 (fr) 2006-09-13
EP1700647B1 EP1700647B1 (fr) 2008-06-04

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EP05005045A Active EP1700647B1 (fr) 2005-03-08 2005-03-08 Dispositif de cintrage pour les pièces en forme de tube et de barre et dispositif de lissage de pli

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US (1) US7293444B2 (fr)
EP (1) EP1700647B1 (fr)
AT (1) ATE397501T1 (fr)
DE (1) DE502005004340D1 (fr)

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WO2016165479A1 (fr) * 2015-04-13 2016-10-20 张家港江苏科技大学产业技术研究院 Chaîne de production de flexion et de moulage
CN106216456A (zh) * 2016-08-10 2016-12-14 上虞市荣迪机械有限公司 铜管转弯接头加工装置
CN109158510A (zh) * 2018-10-29 2019-01-08 镇江科胜电子科技有限公司 一种自动折弯装置用推进机构
WO2020100048A1 (fr) * 2018-11-16 2020-05-22 Cml International S.P.A. Machine pour plier une pièce allongée sans formation de rides
EP3771503A1 (fr) * 2019-07-30 2021-02-03 Numalliance Dispositif de cintrage

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US7870773B2 (en) * 2007-02-28 2011-01-18 Tennine Corporation Inserted wiper die for high-pressure tube-bending and method of using same
IT1396057B1 (it) * 2009-10-15 2012-11-09 Cml Int Spa Macchina curvatubi per curvare a raggio fisso a sinistra e a destra un pezzo allungato
CN102814370A (zh) * 2011-06-10 2012-12-12 江阴市宏业机械制造有限公司 一种顶镦弯管机
ITRM20130259A1 (it) * 2013-05-02 2014-11-03 Cml Int Spa Macchina curvatrice del tipo a matrice e contromatrice per curvare a destra e a sinistra un pezzo allungato
PL3027334T3 (pl) * 2013-08-01 2018-07-31 Addisonmckee, Inc. Układ napinania drążka łączącego
EP2982455A1 (fr) 2014-08-05 2016-02-10 Armando Scaramuzza Dispositif et procédé pour cintrer des éléments tubulaires
ES2760553T3 (es) * 2016-04-27 2020-05-14 Advanced Orthodontic Solutions Máquina de doblado de alambre
CN109500164A (zh) * 2018-12-24 2019-03-22 重庆朔东汽车部件有限公司 一种用于汽车前防护架的折弯装置及其使用方法
CN110743944A (zh) * 2019-10-18 2020-02-04 宁波信泰机械有限公司 一种汽车饰条折弯冲切装置
CN114555332B (zh) * 2020-02-04 2024-04-05 康斯博格汽车部件集团股份公司 包括至少一个弯曲部的预成型热塑性管及其制备方法
TWI722824B (zh) * 2020-03-10 2021-03-21 陳鈺蓁 鋼筋彎曲機
CN112828104B (zh) * 2021-01-05 2022-11-18 广东杨达鑫科技有限公司 一种铝合金固定规则成型设备
CN113619087B (zh) * 2021-07-07 2023-09-29 岳阳高澜节能装备制造有限公司 一种可防端口变形的管道折弯装置
CN116197281B (zh) * 2023-04-27 2023-08-29 能邦(苏州)换热器有限公司 一种空调管弯管机
CN117380806B (zh) * 2023-12-12 2024-02-02 佛山市新义昌金属制品有限公司 一种不锈钢护栏加工折弯设备

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GB943918A (en) * 1960-02-26 1963-12-11 Eric John Hampson Improvements in or relating to bending machines
US3410125A (en) * 1967-02-02 1968-11-12 Pines Engineering Co Inc Tubular stock bending machine
US4380920A (en) * 1980-10-14 1983-04-26 Coop Jeffrey W Sr Adjustable wiper die for bending tubular members
US5222552A (en) 1989-05-15 1993-06-29 Amana Refrigeration, Inc. Tubular heat exchanger and method for bending tubes
US5495740A (en) * 1993-10-21 1996-03-05 Schwarze; Rigobert Pipe bending machine
DE69624723T2 (de) 1996-07-01 2003-03-13 Tools For Bending Inc Verfahren und vorrichtung zum schnellwechseln von werkzeugen
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Cited By (14)

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ITRM20090534A1 (it) * 2009-10-15 2011-04-16 Cml Int Spa Macchina curvaturbi per curvare a raggio fisso e variabile a sinistra e a destra un pezzo allungato
CN104190766A (zh) * 2014-07-23 2014-12-10 北京卫星制造厂 一种用于槽道热管数控弯曲的成型结构及弯曲方法
CN104190766B (zh) * 2014-07-23 2016-01-13 北京卫星制造厂 一种用于槽道热管数控弯曲的成型结构及弯曲方法
US10780487B2 (en) 2015-04-13 2020-09-22 Jiangsu University Of Science And Technology Industrial Technology Research Institute Of Zhangjiagang Bending and molding production line
WO2016165479A1 (fr) * 2015-04-13 2016-10-20 张家港江苏科技大学产业技术研究院 Chaîne de production de flexion et de moulage
CN106216456A (zh) * 2016-08-10 2016-12-14 上虞市荣迪机械有限公司 铜管转弯接头加工装置
CN106216456B (zh) * 2016-08-10 2018-01-12 上虞市荣迪机械有限公司 铜管转弯接头加工装置
CN109158510A (zh) * 2018-10-29 2019-01-08 镇江科胜电子科技有限公司 一种自动折弯装置用推进机构
WO2020100048A1 (fr) * 2018-11-16 2020-05-22 Cml International S.P.A. Machine pour plier une pièce allongée sans formation de rides
CN113165042A (zh) * 2018-11-16 2021-07-23 Cml国际有限公司 用于弯曲细长工件而不会起皱的机器
US11745244B2 (en) 2018-11-16 2023-09-05 Cml International S.P.A. Machine for bending an elongated workpiece without wrinkling
CN113165042B (zh) * 2018-11-16 2024-04-05 Cml国际有限公司 用于弯曲细长工件而不会起皱的机器
EP3771503A1 (fr) * 2019-07-30 2021-02-03 Numalliance Dispositif de cintrage
FR3099394A1 (fr) * 2019-07-30 2021-02-05 Numalliance Dispositif de cintrage

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ATE397501T1 (de) 2008-06-15
US20060201219A1 (en) 2006-09-14
EP1700647B1 (fr) 2008-06-04
US7293444B2 (en) 2007-11-13
DE502005004340D1 (de) 2008-07-17

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