EP1685915B1 - Verfahren zum Bördeln mit vor- und nachlaufender Bördelform - Google Patents

Verfahren zum Bördeln mit vor- und nachlaufender Bördelform Download PDF

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Publication number
EP1685915B1
EP1685915B1 EP06001600A EP06001600A EP1685915B1 EP 1685915 B1 EP1685915 B1 EP 1685915B1 EP 06001600 A EP06001600 A EP 06001600A EP 06001600 A EP06001600 A EP 06001600A EP 1685915 B1 EP1685915 B1 EP 1685915B1
Authority
EP
European Patent Office
Prior art keywords
flanging
tool head
crimping
die
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP06001600A
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German (de)
English (en)
French (fr)
Other versions
EP1685915A1 (de
Inventor
Marc Burzlaff
Stefan Reith
Manfred Hohmann
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.)
EDAG GmbH and Co KGaA
Original Assignee
EDAG GmbH and Co KGaA
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.)
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Publication date
Application filed by EDAG GmbH and Co KGaA filed Critical EDAG GmbH and Co KGaA
Publication of EP1685915A1 publication Critical patent/EP1685915A1/de
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Publication of EP1685915B1 publication Critical patent/EP1685915B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • 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
    • 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
    • B21D39/023—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 using rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53787—Binding or covering
    • Y10T29/53791—Edge binding

Definitions

  • the invention relates to a device and a method for beading. This object is achieved by a flanging and by a method according to claim 1 or 17, preferably roll flanging, a component.
  • the device and the method are preferably used for folding, particularly preferably roll-folding.
  • the invention can be used in particular in vehicle construction, preferably motor vehicle construction. As reshaped components are in particular body parts in question, for example, a door, a wheel arch or another part of an outer side wall, the front or the rear of a motor vehicle.
  • WO 03/02464 A1 From the WO 03/02464 A1 is a Rollfalzvorraum known with three folding rollers, which are used successively in several runs and this can be selectively brought into a working position in which they fold on a Falzsteg the Falzsteg. In order to completely fold over the fold web around a folded edge, three work runs are required with the known device, between which the respective next folding roll must be brought into its working position.
  • a generic flanging device with a tool head which simultaneously carries a first flanging form and a second flanging form in working position, wherein one of the flanged forms of the other is arranged trailing in a working direction describes the EP 1 447 155 A1 and also the JP 2001-62530 A .
  • the known flanging devices each have a bearing unit which supports the first flanged form and is movably supported by the tool head in the transverse direction to the working direction.
  • the invention relates to a hemming apparatus according to claim 1, which comprises a tool head, a first hemming form and at least one further, second hemming form, which are movable in a working direction along a flanging edge of the component in order to act on a hemming web of a component during roll hemming Successively fold flaring bar around a flanged edge.
  • the tool head serves as a carrier for the at least two flanged forms.
  • the first and second flanging molds are arranged on the tool head so as to simultaneously assume their respective working position, i. one of the flare forms serves as Vorbördelform in one run and the other is used in the same work as trailing Nachbördelform.
  • the tool head serves as a carrier only for two flanged forms.
  • the Nachbördelform comes as a Fertigbördelform used.
  • downstream of the Vorbördelform a further crimping form is carried by the tool head, wherein in the case of the intermediate crimping this expediently occupies its working position simultaneously with the other two crimping forms, while in the case of upstream or downstream flanging this occupy their working position together with the other two flared forms or in an alternative embodiment before or after performing a run of at least two flanged into the working position and the at least two flanged from the working position can be moved, or vice versa.
  • the crimping forms part of the common tool head and are moved uniformly during movements of the tool head, which not only two crimping can be performed in a single run in a short time, but also a single movable in space actuator is sufficient as a platform.
  • the effort to be used to control the movement of the actuator corresponds to the effort that was previously required to operate for only one crimping roller per cycle.
  • the crimping forms are mechanically fixed relative to one another at least during the working cycle in a plurality of degrees of freedom and therefore can not be moved relative to one another by means of a control with respect to these degrees of freedom, a mechanical fixing also meaning a fixing by means of a hydraulic or pneumatic force.
  • the crimping should be relatively fixed with respect to the orientation, ie their angular position.
  • a translational mobility of one of the crimping rollers preferably a linear movement along a single axis or at most two-dimensional Mobility, however, is advantageous.
  • the crimping forms are preferably fixed relative to one another and therefore immobile, at least during the working cycle.
  • the invention always understands the location and / or orientation of the crimping roller.
  • the positions can be absolutely unchanging.
  • at least one of the flanging molds between two work runs can be adjustably arranged on the tool head in a state that is withdrawn from the component in order to be able to adapt the tool head to different components.
  • the first flanging form is arranged movably on the tool head so that its position can be changed in relation to the location relative to the second flanging form.
  • the first crimping mold can be moved automatically by means of an adjusting device of the tool head, for example in order to move it against the crimping web or away from the crimping web, wherein the second crimping mold can be in or out of contact with the crimping web.
  • the crimping device comprises a bearing unit, which is movably mounted by the tool head, for the first crimping form.
  • its position relative to the second crimping mold changes automatically during operation so that the tool head adapts to the shape of the crimping edge or a force exerted by the first crimping form on the crimping ridge remains constant or changes as desired.
  • the first crimping form is supported by the bearing unit, preferably stationary relative to the bearing unit.
  • the bearing unit is moved from the tool head in the transverse direction to the flanging edge, i. in and against a direction transverse to the working direction of the tool head, movably mounted. This allows movements of the first flanging form relative to the second flanging form in said transverse direction.
  • the tool head supports the bearing unit in the transverse direction expediently linearly movable, preferably against rotation.
  • the first crimping form is to be advanced in the transverse direction on the crimping ridge so far that it protrudes beyond the second crimping form, preferably so far, that in the case of a straight, perpendicular to the transverse direction flanging edge can act on the flaring web without the second flared shape.
  • Such an embodiment allows the tool head to contact the crimping web only with the first crimping mold while the second crimping mold is offset from the component. This is in confined areas and for driving over areas with a small radius of curvature, such as corners, advantage.
  • the first flanging form is the trailing flanging form which completely flips the flanging web, it can be used for reworking, for example, a corner region in order there to improve the quality of the flanged component. With such a flanging the corner can be ironed, so to speak.
  • the trailing flanging form can pass through the corner area several times and in each case act on the crimping web.
  • the first crimping shape is additionally moved backwards in the transverse direction away from the crimping web so that it protrudes behind the second crimping shape, preferably so far that the second crimping shape in the case of a straight, perpendicular to the transverse direction flanging edge without the first crimping can act on the crimping.
  • This also improves the maneuverability of the tool head and facilitates the passage through corner areas.
  • the comments made with respect to the first crimping form are also advantageous for the second crimping form, the above-described relationships in such a development applying to both crimping forms.
  • the invention allows in preferred variants, the execution of two crimping steps in a single run of the tool head along a curved flanged edge.
  • the tool head is guided so that it and together with it the second flanging follows the edge course, while by means of the transversal movement of the bearing unit curvatures, which has a running in a plane flanging edge in the plane or a three-dimensional flared edge in a settlement to be compensated.
  • the device according to the invention and the method according to the invention can advantageously be formed as a folding device and can be folded, i. the production of a rabbet joint, serve.
  • they are also advantageous for edge bending of a component edge, wherein the bending process does not have to serve the joining of two or possibly more components of the component, but only the edge bending of an example only one-piece component.
  • the crimping bar does not have to be bent around the crimping edge even in a parallel position to an opposite web of the component, i. completely transferred, but the invention is also advantageous for flanging to any bending angle.
  • the crimping forms can be formed as sliders, which slide along the crimping edge in order to displace the crimping web against the crimping web.
  • the flanging web contacting active surfaces of the flanged forms are preferably cylindrical.
  • At least one of the flanging forms is formed as a flanging roll.
  • each of the at least two flanging forms is formed as a flanging roll. If only one of the crimping forms is a crimping roller, then preferably the first crimping form. If the tool head still carries a further flanging form, it is preferred if this further flanging form is formed as a flanging roll.
  • the first flanging form and the second flanging form advantageously have only a small distance from one another in the working direction of the tool head. If the bearing unit executes compensating movements during curling due to curvatures in the edge profile, their amplitude is correspondingly small.
  • the clear distance measured between the active surfaces of the flanged forms in the working direction should not exceed a few centimeters, preferably the clear distance is at most 10 cm, more preferably at most 5 cm or 4 cm.
  • the transverse direction into which the first flanging form is movable relative to the second flanging form is angled, ie at an angle greater than 0 ° and less than 180 °, to a compressive force with which presses the first crimping form in the folding against the crimping.
  • a crimping roller forms the first crimping shape, in such an embodiment it does not in particular have any perpendicularity to the axis of rotation of this crimping roller, but has at least one directional component coinciding with the axis of rotation.
  • the bearing unit compensates for curvatures of the flanged edge and acts in this sense as a compensation unit.
  • the transverse direction is at least substantially parallel to the pressure force or has at least one directional component in common with the pressure force. Preferably, it is aligned with the pressure force.
  • the transverse direction in such an embodiment is not parallel to the axis of rotation of this crimping roller but has at least one directional component perpendicular to the axis of rotation.
  • the first flanged shape is aligned so that it completely flips the flared web, so that the component is bent over at the flanged edge by 180 °. In this case, the first crimping form can slide on the folded flanging web to a limited extent in order to compensate for a curved course of the crimping edge in this way.
  • the bearing unit can be acted upon in the direction of action on the crimping ridge, which advantageously coincides with the transverse direction, with a certain, preferably adjustable force.
  • the device comprises a control device for adjusting the force.
  • the force is preferably kept constant during the run.
  • the force is programmatically varied during the work cycle, for example, to compensate for a varying in the direction of strength of the component in the crimping.
  • the mobility can also only or additionally serve to move the first crimping independently of the second crimping against the crimping or away from the crimping.
  • the force can push the bearing unit against a stop.
  • the bearing unit can not lift from the attack under the forces occurring in the application and is therefore relentless. More preferably, however, the force is chosen so that the pressure force acting on the crimping ridge is constant as mentioned during the working cycle.
  • the storage unit acts in such embodiments as a compensation unit for a force balance. Furthermore, it makes it easier for the first crimping form to follow a curved course of the crimping edge and also acts as a compensation unit in this sense.
  • the device in a preferred embodiment has a scanning device which receives the edge course.
  • the scanning device may be a non-contact sensor or include such, for example, an optical sensor or an ultrasonic sensor, the position signal of a control or regulating device is placed, which adjusts the bearing unit accordingly.
  • the scanning device is or comprises a guide member formed as a contact receiver, which is held in a guide contact with a guide curve corresponding to the edge profile.
  • the guide member could basically only be used via an intermediate control or regulating device with adjusting device for controlling or regulating the transverse movements of the bearing unit
  • the guide member is mechanically connected to the bearing unit so that it is the bearing unit in the case of a movement along the guide curve in the transverse direction to the guide curve entrains.
  • the guide member is fixedly arranged on the bearing unit.
  • the guide member may for example be a slider, but is advantageously formed as a role and rolls in the guide contact on the guide curve.
  • the guide member advantageously forms a contact surface for the guide contact in such a way that the contact surface is in the guide contact when viewed with a guide curve formed by the crimping ridge on the other side of the crimping edge or directly with a guide curve formed by the crimping edge or the crimping ridge.
  • the guide member is preferably pressed with a resilience in the guide contact, preferably pneumatically. It is advantageous if the guide member forms a contact surface for the guide contact, which is arranged in the working direction at the same height as the first flanging form.
  • a control device may be provided, which is the first crimping relative to the second in Transverse direction adjusted depending on stored position coordinates of the edge, ie without sampling.
  • the second flanging is supported in a preferred embodiment of a force measuring device, preferably a load cell, from the tool head.
  • a force measuring device preferably a load cell
  • the force exerted by the second crimping form on the crimping web force can be measured during the work cycle.
  • the force determined from the measurement is compared with a desired force.
  • the trajectory of the tool head is optimized.
  • a movement control of the tool head ie, a motion control of the tool head bearing actuator
  • the trajectory be given in the form of an ideal course of the crimping edge, preferably a programmed motion control.
  • the motion control is also predetermined along the movement path of the desired force profile.
  • the motion control optimizes the trajectory as a function of the comparison of the desired force and the actual force in such a way that the course of the crimping edge comes as close as possible to the ideal trajectory and, at the same time, the actual force corresponds as far as possible to the desired force.
  • the determination of the actual force and, based on this, the optimization of the movement path is an advantage in series production, in particular when starting a new series, in order to optimize the movement path in the first components of a new series. After optimization, the force measuring device can be switched off in the further course of the respective series and the tool head can be stirred on the optimized trajectory.
  • a check of the actual force with renewed optimization of the trajectory can be performed.
  • the force measuring device during the entire series ie when crimping always the same components of a series, be switched on to constantly optimize the trajectory upon detection of deviations of the actual force of the desired force or at least upon detection of a clear trend.
  • the device according to the invention and the method according to the invention can be used both in a component which is accommodated in a component receptacle, a flanging bed, and in a free component, for example a completed body shell.
  • the tool head preferably carries support rollers, namely one supporting roller per crimping form, which is arranged opposite the associated crimping form, in order to receive the bending force that respectively occurs during the folding.
  • a component receptacle, a crimping bed forms the guide curve.
  • the component itself forms the guide curve, for example the crimping web or the crimping edge or preferably a component strip extending from the crimping web on the other side of the crimping edge.
  • the bearing unit is subjected to a pneumatic force in the direction of its transversal mobility, in order to hold the first flanging mold during a working run in a position in which it flips the flanging web around the predetermined bending angle.
  • a pneumatic force in the direction of its transversal mobility, in order to hold the first flanging mold during a working run in a position in which it flips the flanging web around the predetermined bending angle.
  • the force required for this could be generated by means of a mechanical spring or a system of several mechanical springs.
  • the pneumatic generation of the force has the advantage that the size of the force can be specified by appropriate dimensioning of the pressure surface of a piston acted upon by the pneumatic pressure more accurate, a material fatigue less feared and the direction of movement of the storage unit can be easily reversed, if, for example, a Piston-cylinder arrangement is used with a pressurizable piston on both sides.
  • the size of the force can be selected according to different needs during operation, from a Bördelaufgabe to another or different from Bördelvorraum crimping the respective needs.
  • a Um Kunststoffworth may be advantageous to attach the first crimping roll before or after the second crimping roll to the crimping web or to take from the crimping web. This can be beneficial in confined spaces.
  • the first crimping form is in method according to the invention sufficiently far in the transverse direction over the second flanging out or behind this movable.
  • a mechanical spring or a system of several, matched mechanical springs may also be provided a pneumatic force supportive.
  • the bearing unit is preferably subjected to a spring force in the direction of its transverse mobility in order to press the crimping roller resiliently against the crimping web and thereby compensate for unevenness
  • the transverse force is not a force of elasticity but a stiff force, for example hydraulic or is generated by means of an electric motor.
  • the tool head is expediently controlled in space in all three coordinate directions and preferably also all three degrees of freedom of the rotation and, if necessary, also controlled so that it can be positioned automatically relative to the component and can be guided following the course of the flanging edge.
  • it is attached or attachable to a correspondingly movable actuator, preferably a robot arm.
  • the invention can be used for crimping components for which a component receptacle absorbs the reaction force occurring during crimping.
  • the tool head For crimping a component received in a component receptacle, the tool head is acted upon in a direction toward the crimping web by a force in order to apply the forming pressure and thereby the bending force required for transferring the crimping web.
  • the direction of the transverse mobility of the first crimping roller has in the first variant at an angle greater than 0 ° and less than 180 °, preferably at right angles, to the force with which the tool head can be pressed against the crimping web via the crimping forms in order to shift it.
  • the direction of the transverse mobility preferably at least substantially in the direction of the force, expediently, the directions are identical.
  • the tool head While in a crimping of a component received by a component receiving the component receiving the reaction force, the tool head is used in a Crimping device and a crimping process without component receiving, which also represent a preferred subject of the invention, as a carrier for each at least, preferably exactly one support roller per crimping. Even with such components, such as a component of a side wall for a motor vehicle or an already completed body shell, such as a wheel well, the saving of work runs is of great economic advantage.
  • the tool head is used for such devices and methods as a carrier for each support roller per crimping to accommodate the applied during a folding of the crimping web per crimping bending force.
  • the at least two crimping forms are assigned correspondingly two support rollers.
  • the one of the support rollers is advantageously rotatably supported together with the first flanging form of the bearing unit, so that the formed from the first flanging and the support roller forming pair is movable in the transverse direction to the working direction relative to the second flanging form and its associated support roller.
  • the bearing unit may be mounted floating in the first variant for the transverse mobility, preferably powerless, between the transversal movement in both directions limiting end stops.
  • the bearing unit or optionally a further bearing unit can in both variants also be movably mounted in another transverse direction in order, for example, to compensate for curvatures of the flanged edge about axes which are differently oriented in space.
  • the directions of such a double transverse mobility point to each other and also to the working direction of the tool head, preferably at right angles. In principle, however, they can also point at different angles to one another and to the working direction.
  • the second crimping can also be stored by a storage unit, which in turn is mounted transversely movable from the tool head in a different direction than the bearing unit with the first crimping.
  • FIG. 1 shows a Rollbördelvorraum in a first Ausfiihrungsbeispiel.
  • the Rollbördelvorraum forms an end effector of a robot. It is a tool head 5, which is provided with a connecting flange for connection to the end of an articulated arm of the robot.
  • the tool head 5 serves as a carrier for a total of two flanging forms, namely a first flanging roller 11 and a second flanging roller 12.
  • the flanging rollers 11 and 12 are used simultaneously during a working run of the tool head 5.
  • the first crimping roller 11 operates as Vorbördelrolle and the second crimping roller 12 as a Nachbördelrolle.
  • the crimping rollers 11 and 12 are hereinafter referred to function as Vorbördelrolle 11 and Nachbördelrolle 12.
  • FIG. 2 shows an edge region of a preformed sheet 1 of a component. By preforming a beading 2 was generated, which has along a flanged edge 3 at a right angle to an adjacent edge strip of the sheet 1.
  • FIG. 3 shows a plan view of the edge region of the sheet 1 in a settlement.
  • the flanged edge 3 has a curved course in the plane of settlement.
  • the working direction of the Rollbördelvorraum, which coincides with the local longitudinal direction of the flanging edge 3 is denoted by L.
  • the Vorbördelrolle 11 and the Nachbördelrolle 12 are arranged on the tool head 5, and their axes of rotation are aligned so that they completely flipping the flange 2 in a single run of the tool head 5 in two crimping steps, so that the crimping 3 after the roll flanging parallel to the on the other side of the crimping edge 3 adjacent edge strip of the sheet 1 points.
  • a folding pocket for a clamping connection of the sheet 1 with another sheet, which protrudes with one end into the folding pocket is formed.
  • an edge strip of a structure made of another material, such as plastic are held. If a rabbet joint is produced by the roll crimping, the sheet metal 1 and the structure to be joined thereto are positioned corresponding to one another.
  • the Nachbördelrolle 12 is fixedly connected to the tool head 5. Location and orientation of its axis of rotation are fixed at least during a run. In the embodiment, the location and the orientation of the axis of rotation are not changeable between work runs.
  • the axis of rotation of Nachbördelrolle 12 has at right angles to a body-fixed axis P of the tool head. 5
  • the axis of rotation of the Nachbördelrolle 12 has perpendicular to the axis P.
  • the axis of rotation of the Vorbördelrolle 11 is relative to the axis of rotation of the Nachbördelrolle 12 and the axis P respectively inclined.
  • the angle of inclination of the axis of rotation of the Nachbördelrolle 12 by parallel displacement brought to the section axis of rotation of Vorbördelrolle 11 is 45 °. Other angles of inclination are also possible within the known limits.
  • a right angle bevelled flanged web is advantageously provided with only two Completely folded over crimping rollers.
  • the inclination angle of the Vorbördelrolle 11 to the axis P is also 45o.
  • the position of the pre-crimping roller 11 relative to the tool head 5 and in particular relative to the beading roller 12 is variable.
  • the inclination angle of the Vorbördelrolle 11 is maintained at the position changes.
  • the direction Q of the relative movability of the pre-crimping roller 11 has transversely, in the embodiment at right angles, to the working direction L, i.
  • the endogenous axis P of the tool head 5, the working direction L and the direction Q of the transversal mobility of the pre-crimping roller 11 are not parallel to each other in pairs, i. they point each other in pairs at an angle. In the exemplary embodiment, they form a rectangular coordinate system, but in principle other angular relationships are not excluded either.
  • the tool head 5 is acted upon along the axis P in the direction shown with a force to press the crimping rollers 11 and 12 against the crimping web 2 and thereby successively according to the inclination of the axes of rotation of the crimping rollers 11 and 12 reposition.
  • the transversely movable Vorbördelrolle 11 includes the tool head 5 acting as a compensation unit bearing unit 9, which is movably supported by the tool head 5 in the transverse direction Q and in turn rotatably supports the Vorbördelrolle 11.
  • the bearing unit 9 forms a rotationally secured in the direction Q relative to the tool head 5 linearly movable carriage. Since the bearing unit 9 is carried by the tool head 5 and thus is a part of the tool head 5, the bearing unit 9 is more precisely not by the tool head 5 as such, but by a bearing part of the Tool head 5 stored.
  • This bearing part comprises a cylinder unit 6 of a pressing device and a guide 8 for guiding the bearing unit 9 in the transverse direction Q.
  • the bearing unit 9 comprises a piston unit 9a which forms the pressing device in cooperation with the cylinder unit 6, a bearing structure 9c and 9b rotatably supporting the pre-crimping roller 11 a connecting structure 9b rigidly connecting the piston unit 9a with the bearing structure 9c and shaped as a bracket.
  • the pressing device is a pneumatic power generator and is formed from the cylinder unit 6 and the piston unit 9a as a cylinder-piston unit.
  • the piston unit 9a consists of a piston and a piston rod.
  • the cylinder unit 6 forms a cylinder for the piston.
  • the piston rod is connected to the connection structure 9b.
  • the pressing device further comprises a connection 7 for a compressed gas, preferably compressed air.
  • FIGS. 4 to 6 is a consisting of the Rollbördelvorraum and a component holder 4 arrangement for Rollbördeln of the sheet 1 is shown.
  • FIG. 4 shows a view against the working direction L of the Rollbördelvortechnik
  • FIG. 5 shows the arrangement in a view on a side facing away from the sheet metal 1 back of the Rollbördelvortechnik
  • FIG. 6 a perspective view.
  • the metal sheet 1 rests on the component receptacle 4, a crimping bed, and is either already fixed by resting or additionally on the component receptacle 4.
  • the component holder 4 forms a guide curve 4a for the bearing unit 9.
  • the guide curve 4a follows the flanged edge 3 along its side opposite the flaring web 2 and has at least substantially in the direction Q of the transverse movement of the bearing unit 9; in the exemplary embodiment, it extends exactly perpendicular to the direction Q.
  • a guide member 10 is arranged, which is in the rolling flanging with the guide curve 4a in a guide contact.
  • the guide member 10 is formed as a roll and is from the storage unit 9 about a direction perpendicular to the direction Q, to the axis P parallel axis of rotation rotatably mounted. In the roll flanging, the guide member 10 thus rolls in the guide contact on the guide curve 4a.
  • the bearing unit 9 is pressed by means of the pressing device 6, 9a in the direction Q on the bead web 2. At the same time presses the pressing device 6, 9a while the guide member 10 against the guide curve 4a.
  • the position of the guide member 10 is selected in the direction Q relative to the Vorbördelrolle 11 so that the Vorbördelrolle 11 the Bördelsteg 2 by the angle predetermined by the inclination of Vorbördelrolle 11 angles when the guide member 10 is in guiding contact with the guide curve 4a.
  • the guide member 10 is rotatable only about its axis of rotation, but otherwise arranged relative to the storage unit 9 stationary.
  • the guide member 10 By the guide member 10 is pressed into the guide contact, it follows the course of the flanging edge 3 during the movement of the hemming in the working direction L. While the tool head 5 along the axis P presses on the hemming 2 and controlled or optionally also guided regulated so that the Nachbördelrolle 12 follows the course of the flanging edge 3, the Vorbördelrolle 11 can move in the context of their Querbewegles relative to the Nachbördelrolle 12 to compensate in this way between the crimping rollers 11 and 12 occurring curvatures.
  • the pressing device 6, 9a can be acted upon via the connection 7 with a certain pressure and be closed after the pressure has been built up, so that the cylinder unit 6 forms a closed chamber.
  • the pressure in the cylinder 6 is regulated during operation to maintain a predetermined setpoint.
  • the pressing device 6, 9a forms in combination with the guide member 10 an adjusting device for the bearing unit 9 and thus for the Vorbördelrolle 11. However, it is not only the pressing of the guide member 10 to the guide curve 4a and consequently the Vorbördelrolle 11 against the crimping ridge 2. In simple designs, the pressing device 6, 9a can press the guide member 10 only against the guide curve 4a. In a further development, the pressing device 6, 9a already alone forms an adjusting device by means of which the Vorbördelrolle 11 relative to the Nachbördelrolle 12 at the beginning of the work in the direction Q in the working position and at the end of the work in the opposite direction, which is also referred to as Q. , is movable from the working position.
  • the tool head 5 is moved to an initial position, either controlled by a sensor or only controlled with appropriate storage of the position of the sheet 1.
  • the initial position of the tool head 5 only the pre-crimping roller 11 is pressed against the crimping web 2.
  • the workflow is now started.
  • a single operation of the crimping 2 is folded according to the inclination of Vorbördelrolle 11 in a first crimping step and according to the inclination of the Nachbördelrolle 12, in the embodiment, it is completely folded so that it is parallel to the adjacent to the other side of the crimping edge 3 edge strip of the sheet 1 comes to rest.
  • the flanging device is thus particularly suitable for forming a folded connection of the sheet 1 with a further structure which is planar at least in the joining region.
  • the crimping web 2 or a crimping web preformed at a different bending angle can be transferred per crimping step and also altogether at a different bending angle.
  • the Vorbördelrolle 11 either simply continues in the direction L, or it drives the pressing device 6, 9a, the bearing unit 9 and thus the Vorbördelrolle 11 in the transverse direction Q from the crimping, so that the Nachbördelrolle 12 in the cramped space in the longitudinal direction L.
  • the flanged edge 3 further moves and the flanged edge 3 can be folded in its end according to the Bördelaufgabe.
  • the tool head 5 is moved entirely out of the flanging area.
  • the tool head 5 is either controlled or guided only controlled.
  • the tool head In the case of a position control, the tool head is equipped with a corresponding sensor system for detecting the edge profile or a suitable other reference.
  • only controlled movement one has the movement of the Tool head 5 controlling control access to a stored data set, which represents the course of the flanged edge 3.
  • the piston unit 9a in the development of a on both sides of the piston pressurized piston, i. a double piston, and the cylinder unit 6 on both sides of a piston each with a pressurizable cylinder space.
  • FIGS. 7 and 8th show a Rollbördelvorraum in a second embodiment in two perspective views.
  • Components with the same function as components of the first embodiment are provided with the reference numerals of the first embodiment. New reference numerals are used only for the crimping rollers 13 and 14.
  • the differences from the first embodiment will be described. Incidentally, the comments on the first embodiment apply.
  • the L, P, Q coordinate system of the tool head 5 the angular position with respect to all coordinate axes and the location of the Nachbördelrolle 14 with respect to the axes L and Q are mechanically fixed, as in the first embodiment of the Nachbördelrolle 12 is the case.
  • the Vorbördelrolle 13 is supported via a load cell 16, but otherwise both fixedly arranged on the tool head 5 and fixed with respect to their angular position. With regard to the angular position and the fixation of the location with respect to the axis L, it corresponds to the Vorbördelrolle 11 of the first embodiment.
  • the load cell 16 is used to measure the force with which the Vorbördelrolle 13 against the crimping the second and based on this setting the optimum force for the Vorbördel Mah.
  • the load cell 16 may comprise a tethered spring and the Vorbördelrolle 13 via the load cell 16 as shown in the DE 100 11 854 A1 described be stored on the tool head 5.
  • the DE 100 11 854 A1 is referred to for this.
  • a fixed arrangement can be assumed for the Vorbördelrolle 13, especially since the load cell 16 can be omitted in a simplified embodiment and the Vorbördelrolle 13 is then fixed to the tool head 5.
  • the load cell 16 advantageously the movement path of the tool head is optimized.
  • the cylinder unit 6 is pivoted by 90 ° according to the changed direction of the transverse mobility attached to the tool head 5.
  • the piston unit 9a therefore travels in the transverse direction P in and out and with it the further parts 9b and 9c of the bearing unit 9 fastened thereto.
  • the bearing unit 9 is guided in the region of its connecting structure 9b by the guide 8 in the transverse direction P in a linearly secured manner.
  • the bearing structure 9c which supports the Nachbördelrolle 14 rotatably, is rigidly connected via the connecting structure 9b with the piston unit 9a.
  • the storage unit 9 is stiff again.
  • the cylinder unit 6 has two ports 7 for a pressurized gas, preferably compressed air, to pressurize the piston of the piston unit 9a on both sides and to be able to move the bearing unit 9 back and forth in the transverse direction P.
  • the bearing unit 9 can be extended in the direction of action P far enough that the Nachbördelrolle 14 projects beyond the Vorbördelrolle 13 so that they can act in the case of a straight, perpendicular to the axis P flanged edge 3 without the Vorbördelrolle 13 on the flared web 2. Furthermore, it can be retracted counter to the direction of action P far enough that the Nachbördelrolle 14 behind the Vorbördelrolle 13 protrudes so far that the Vorbördelrolle 13 in the case of a straight, perpendicular to the axis P flanged edge 3 can act on the flaring web 2 without the Nachbördelrolle 14.
  • the pressure with which the Nachbördelrolle 14 acts on the flaring web 2 is kept constant during a run.
  • the storage unit 9 is for this purpose with a acted upon corresponding selected force, in the embodiment with a gas pressure in the cylinder unit 6, which holds a pressure control device constant.
  • the crimping web 2 is completely folded over in two crimping steps, which the tool head 5 executes in the same work cycle.
  • the Nachbördelrolle 14 acting with constant pressure on the flanged web 2 ensures a high quality of form in the beaded edge region of the component 1. If the flanged edge 3 has a corner region, such as in sliding roofs or vehicle doors, the pre-flanging roller 13 passes through the corner region. The bearing unit 9 is retracted so far for this passage through the corner that the Nachbördelrolle 14 does not act on the crimping 2 in the corner.
  • the tool head 5 is moved a little way away from the crimping web 2 in the next step, so that the pre-crimping roller 13 lifts away from the crimping web 2.
  • the bearing unit 9 is extended, so that the Nachbördelrolle 14 moves back to its working position.
  • the tool head 5 is now moved back in front of the corner area in reversal of the working direction L, so that the crimping web 2 is completely folded in the corner region with lifted Vorbördelrolle 13 by means of the Nachbördelrolle 14.
  • the tool head 5 passes through the corner area with lifted Vorbördelrolle 13 and befind Anlagen in working position Nachbördelrolle 14 again to "iron" the component 1 in the corner and thereby improve the quality of the component.
  • the tool head 5 in the direction of P on the flared web 2 is advanced and synchronously the storage unit 9 retracted until both crimping rollers 13 and 14 at the same time press on the crimping 2 and this in successively transfer the further course of the work process.
  • a flanging device comprises the pre-flanging roll 11 of the first embodiment and the flanging roll 14 of the second embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Tyre Moulding (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Machine Tool Units (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP06001600A 2005-01-31 2006-01-26 Verfahren zum Bördeln mit vor- und nachlaufender Bördelform Active EP1685915B1 (de)

Applications Claiming Priority (1)

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DE102005004474A DE102005004474B3 (de) 2005-01-31 2005-01-31 Bördelvorrichtung und Bördelverfahren zum Umlegen eines Bördelstegs eines Bauteils um eine Bördelkante

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EP1685915A1 EP1685915A1 (de) 2006-08-02
EP1685915B1 true EP1685915B1 (de) 2008-07-23

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EP (1) EP1685915B1 (es)
JP (1) JP4221412B2 (es)
AT (1) ATE401978T1 (es)
DE (2) DE102005004474B3 (es)
ES (1) ES2310864T3 (es)

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CN116900192B (zh) * 2023-09-13 2023-12-05 万向钱潮股份公司 一种减震器封口装置

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DE102009024344A1 (de) 2009-06-09 2010-12-30 Edag Gmbh & Co. Kgaa Verfahren und Werkzeug zum Bördeln eines Werkstücks
WO2010142703A3 (de) * 2009-06-09 2011-02-03 Edag Gmbh & Co. Kgaa Verfahren und werkzeug zum bördeln eines werkstücks
DE102009024344B4 (de) * 2009-06-09 2011-02-24 Edag Gmbh & Co. Kgaa Verfahren und Werkzeug zum Bördeln eines Werkstücks
DE202010011359U1 (de) 2010-08-13 2011-02-10 Edag Gmbh & Co. Kgaa Dockingmodul für ein mittels eines Roboters zu handhabendes Werkzeug

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DE502006001150D1 (de) 2008-09-04
EP1685915A1 (de) 2006-08-02
JP4221412B2 (ja) 2009-02-12
US7637134B2 (en) 2009-12-29
ES2310864T3 (es) 2009-01-16
US20060288752A1 (en) 2006-12-28
JP2006212704A (ja) 2006-08-17
ATE401978T1 (de) 2008-08-15
DE102005004474B3 (de) 2006-08-31

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