EP2035164B1 - Vorrichtung und verfahren zur verbindung zweier bleche durch crimping - Google Patents

Vorrichtung und verfahren zur verbindung zweier bleche durch crimping Download PDF

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Publication number
EP2035164B1
EP2035164B1 EP07823532A EP07823532A EP2035164B1 EP 2035164 B1 EP2035164 B1 EP 2035164B1 EP 07823532 A EP07823532 A EP 07823532A EP 07823532 A EP07823532 A EP 07823532A EP 2035164 B1 EP2035164 B1 EP 2035164B1
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EP
European Patent Office
Prior art keywords
edge
tool
axis
panel
crimping
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
EP07823532A
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English (en)
French (fr)
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EP2035164A1 (de
Inventor
Pascal Denoual
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.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen Automobiles SA
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Publication date
Application filed by Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP2035164A1 publication Critical patent/EP2035164A1/de
Application granted granted Critical
Publication of EP2035164B1 publication Critical patent/EP2035164B1/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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
    • B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
    • 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

Definitions

  • the invention relates to a device for assembling two crimping sheet metal panels according to the preamble of claim 1 (see for example JP-A-2002 035865 ), as well as a crimping method using such a device, performing a prestressing operation and a crimping operation.
  • the crimping is used to assemble the two panels of sheets by folding an edge of the first panel on an edge of the second panel.
  • the crimping operations are carried out with a mobile arm of a robot carrying a crimping tool including a roller or a wheel: the arm is then moved along the edge to be crimped to exert on it a force through the roller.
  • the arm is moved a first time along the edge to exert a force to partially fold this edge, then it is moved a second time along the edge to exert a force to apply it on the other edge to that he encloses it.
  • the force exerted by the roller on the edge to be crimped is for example generated and / or enslaved by a device such as that described in FIG. the patent application FR-A-2,843,549 , possibly being controlled by a sensor.
  • the object of the invention is to provide a means for performing the crimping of a part in a simple and fast manner and offering a satisfactory quality.
  • the invention relates to a device for assembling by folding an edge of a first sheet metal panel on an edge of a second sheet metal panel as defined in claim 1.
  • the tool comprises at least one spring compressing when the rocker is spaced from a neutral angular position.
  • the tool comprises two springs compressing respectively when the rocker is spaced from its neutral position in a first or a second direction of rotation about the axis.
  • the angle that the axes of the two rollers form is 55 °.
  • the balance is pivotally mounted relative to the base around an axis coinciding with the pivot axis of the crimping roller.
  • the pivot axis of the crimping roller and the rocker crosses an axis of symmetry of the arm carrying the tool.
  • the device according to the invention a first embodiment of which is represented in figure 1 and 2 , is intended to assemble parts by crimping or folding. As shown on the figure 3 , this assembly consists in folding an edge B1 of a first panel P1 of sheet metal, on an edge B2 of a second panel P2 of sheet metal.
  • the panels are supported by a matrix M, the folding being carried out with a prestress roller 1 and a crimping roller 2 mounted on a tool carried by a mobile arm of a robot.
  • the tool comprises for this purpose a support 3, or balance, carrying the two rollers 1, 2, this beam being mounted on a base 7 being able to pivot about an axis 4 relative to this base 7.
  • the axis 4 extends perpendicularly to the direction of movement of the tool 1, 2 along the edge to be crimped.
  • the base 7 of the tool is attached to a not shown end of the robot arm via a crimping head 8 comprising a face 9 of attachment to this arm end.
  • This crimping head 8 comprises, for example, means for controlling the intensity of the force applied by the rollers to the edge to be crimped, the base 7 being rigidly fixed to a movable member of this crimping head.
  • This head 8 comprises for example a spring which is compressed by the robot on a predetermined stroke to deliver a crimping force determined by the stiffness of the spring and the length of compression.
  • the tool also comprises springs 5 and 6 of stressing, respectively pre-crimping roller and crimping roller.
  • the balance 3 comprises two branches, respectively marked by 3A and 3B parallel to one another and extending on either side of the base 7, beyond the axis of rotation 4 .
  • the spring 5 is interposed and held in position between the leg 3A and the base 7
  • the spring 6 is interposed and held in position between the leg 3B and the base 7.
  • a rotation of the balance 3 in the direct direction on the figure 1 tends to compress the spring 5, and a rotation in the indirect direction on the figure 1 tends to compress the spring 6.
  • the pre-crimping roller 1 In operation, if the pre-crimping roller 1 encounters an excess thickness, it will tend to rotate the rocker 3 in a direction tending to compress the spring 5, which will substantially increase the force applied by the roller edge to crimp.
  • the crimping force is applied by the arm and enslaved via the crimping head 8 to correspond to a desired value of the sum of the forces applied by the two rollers 1 and 2 to the edge to be crimped.
  • the distribution of this force between the roller 1 and the roller 2 is managed by the spring 5 and 6 to absorb the best irregularities encountered during the movement of the tool.
  • rollers 1 and 2 are respectively carried by an axis A1 and by an axis A2 which form a non-zero angle, denoted W, with respect to each other.
  • the axis A1 and the axis A2 are inscribed in two parallel planes, perpendicular to the path of the tool.
  • the angle W corresponds to the angle separating, in the plane containing the axis A2, the axis A2 and the orthogonal projection of the axis A1 in this plane.
  • the pre-crimping roller 1 is positioned in abutment on a guide surface S of the matrix M in which the sheet metal panels P1 and P2 to be crimped have been positioned, exerting a force on the edge B1 via the tool, to fold this edge B1 locally.
  • the not shown movable arm is then moved to move the tool along the edge crimping, resting on the guide surface S, so as to exert a force on the edge B1 to crimp.
  • the edge B1 As the tool advances along the edge B1, the latter is first folded by the pre-crimping roller 1, then applied on the edge B2 of the second panel P2 by the crimping roller 2.
  • the prestressing roller 1 Due to the relative inclination W of the two rollers 1, 2 the prestressing roller 1 provides the first deformations of the edge B1 of the panel P1 and the crimping roller 2, which follows the roller 1 at a short distance, performs the crimping.
  • the angle W is 55 degrees, which makes it possible, in practice, to make crimps in which the crimping edge is bent at an angle of up to 105 degrees in a single pass, that is to say say in one pass the crimping tool.
  • the cycle time of a crimp can thus be divided by two.
  • the degree of freedom introduced by the balance makes it possible to avoid, in particular, marking of the parts to be crimped when passing an obstacle.
  • the springs 5 and 6 stress the rollers can further reduce the influence of an extra thickness on the quality of crimping obtained.
  • the support or pendulum 3 has an axis of symmetry coinciding with the axis of revolution AX of the crimping head 8 when the balance 3 occupies a neutral angular position, as in FIG. figure 1 .
  • the axes A1 and A2 of the rollers 1 and 2 are respectively forward and backward of a plane normal to the movement of the tool and containing the axis AX.
  • the pressure applied by the head 8 is thus equitably distributed over the first and the second roller 1 and 2, this distribution being moreover managed by the stressing springs 5 and 6 in case of inclination of the balance 3.
  • the device comprises a balance 3 'which is asymmetrical.
  • This balance also carries a roller 1 'of lightsertissage and a roller 2' crimping located one behind the other relative to the direction of movement of the tool.
  • These rollers 1 'and 2' are also mounted on axes A1 'and A2' forming an angle W 'with respect to each other, as visible in FIG. figure 5 .
  • the axis A1 'and the axis A2' are inscribed in two parallel planes, perpendicular to the path of the tool.
  • the angle W ' corresponds to the angle separating, in the plane containing the axis A2', the axis A2 'and the orthogonal projection of the axis A1' in this plane.
  • the balance 3 ' is also mounted on a base marked by 7' which is rigidly secured to a crimping head 8 'provided with an upper surface 9' of attachment to an arm of the robot.
  • the support 3 ' is pivotable relative to the base 7' about the axis A2 'coinciding with the axis of the roller 2' crimping.
  • the crimping head 8 ' Figures 4 and 5 is identical to the crimping head 8 of Figures 1 and 2 . It comprises for example a spring for adjusting the level of force applied to the tool by setting the path of the robot to compress more or less strongly this spring.
  • the device comprises a single lateral branch marked by 11 ', extending parallel to the axis AX' and carrying the spring 5 '.
  • This branch 11 ' is located behind the crimping roller 2' relative to the direction of travel of the tool. It comprises a yoke at its lower end by which it is connected to a lower arm 12 'of the support 3' by a pivot connection axis parallel to the axis A2 '.
  • the lower arm 12 ' extends an attachment zone of the rollers, in the horizontal direction corresponding to the direction of advance of the tool, and ends with a bend oriented vertically at the upper end of which is fixed the yoke of the branch 11 '.
  • the branch 11 ' comprises a rod not visible in the figures and having its lower end fixed to the yoke. This rod is parallel to the axis AX ', and it passes through a tubular abutment 13', this stop being rigidly fixed to the base 7 'extending parallel to the axis AX'.
  • the helical spring 5 ' surrounds a set screw 14' which is screwed into an upper end of the non-visible rod.
  • the spring 5 ' is thus interposed between the head of the set screw 14' and an upper face of the tubular abutment 13 '.
  • the set screw 14 'thus makes it possible to directly adjust the force applied by the prestressing roller 1' to the sheet metal edge to be bent, this force being all the more important as the screw 14 'is tightened.
  • the base of the clevis 15 'of the branch 11' defines a support surface of larger dimensions than the lower face of the tubular abutment 13 '.
  • the pre-crimping roller 1 ' is positioned in abutment on a guide surface S of the matrix M in which the sheet metal panels P1 and P2 to be crimped have been positioned, exerting a force on the edge B1 via the tool, to fold this edge B1 locally.
  • the tool is then moved along the crimping edge, resting on the guide surface S, so as to exert a force on the edge B1 to be crimped.
  • the advance of the tool causes the folding of the edge B1 by the pre crimping roller 1 ', then this edge B1 is applied on the edge B2 by the crimping roller 2'.
  • the cycle time can thus be divided by two.
  • the mobility of the balance makes it possible to avoid marking the pieces when passing an obstacle: a fine adjustment of the pressure of the presetting roller can be performed by adjusting the set screw 14 '.
  • the programming of the trajectory of the robot carrying the tool according to the second embodiment is simplified by the fact that the axis A1 'carrying the prestressing roller 1' is inscribed in a plane comprising the axis AX 'of the head 8' and the axis 4 'of pivoting of the balance 3'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Body Structure For Vehicles (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (7)

  1. Vorrichtung zum falzenden Zusammenfügen eines Randes (B1) einer ersten Blechtafel (P1) mit einem Rand (B2) einer zweiten Blechtafel (P2), wobei diese Vorrichtung einen beweglichen Arm enthält, der ein Werkzeug (1, 2; 1', 2') trägt, um auf den Rand (B1) der ersten Tafel (P1) eine Kraft auszuüben, um ihn einerseits zu dem Rand (B2) der zweiten Tafel (P2) zu biegen und um ihn andererseits gegen den Rand (B2) der zweiten Tafel (P2) zu drücken, wobei das Werkzeug (1, 2, 3, 7; 1', 2', 3', 7') wenigstens eine Vorbördelrolle (1; 1') und eine Bördelrolle (2; 2'), die an einem Träger (3; 3') in Richtung der Verlagerung des Werkzeugs (1, 2, 3, 7; 1', 2', 3', 7') hintereinander angebracht sind, aufweist, wobei die Achsen (A1, A2, A1', A2') der zwei Rollen (1, 2; 1', 2') untereinander einen Winkel (W; W') bilden, dadurch gekennzeichnet, dass der Träger (3; 3') ein Schwenkhebel ist, der an einer Basis (7, 7') in der Weise montiert ist, dass er in Bezug auf diese Basis (7, 7') um eine Achse (4; A2') schwenken kann, die zu der Verlagerungsrichtung des Werkzeugs senkrecht ist, wobei die Basis (7, 7') dazu vorgesehen ist, an dem beweglichen Arm befestigt zu werden.
  2. Vorrichtung nach Anspruch 1, wobei das Werkzeug wenigstens eine Feder (5, 6; 5') enthält, die komprimiert wird, wenn der Schwenkhebel aus einer neutralen Winkelstellung entfernt wird.
  3. Vorrichtung nach Anspruch 2, wobei das Werkzeug zwei Federn (5, 6) enthält, die jeweils komprimiert werden, wenn der Schwenkhebel (3) aus seiner neutralen Stellung in einer ersten oder in einer zweiten Drehrichtung um die Achse (4) entfernt wird.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, wobei der Winkel (W), den die Achsen (A1, A2) der zwei Rollen (1, 2) bilden, 55° beträgt.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, wobei der Schwenkhebel (3') schwenkbar in Bezug auf die Basis (7') um eine Achse (A2'), die mit der Schwenkachse der Bördelrolle (2') zusammenfällt, angebracht ist.
  6. Vorrichtung nach Anspruch 5, wobei die Schwenkachse (A2') der Bördelrolle (2') und des Schwenkhebels (3') eine Symmetrieachse des das Werkzeug tragenden Arms schneiden.
  7. Verfahren zum falzenden Zusammenfügen eines Randes (B1) einer ersten Blechtafel (P1) mit einem Rand (B2) einer zweiten Blechtafel (P2) mit einer Vorrichtung nach einem der vorhergehenden Ansprüche, die einen beweglichen Arm enthält, der ein Werkzeug (1, 2, 3; 1', 2', 3', 7') trägt, um auf den Rand (B1) der ersten Tafel (P1) eine Kraft auszuüben, um ihn einerseits zu dem Rand (B2) der zweiten Tafel (P2) zu biegen und um ihn andererseits gegen den Rand (B2) der zweiten Tafel (P2) zu drücken, wobei das Verfahren wenigstens die folgenden Schritte enthält:
    - Annähern des beweglichen Arms an eine und Positionieren des Werkzeugs in Kontakt mit einer Abstützfläche (S) eines Gesenks (M), das die zusammenzufügenden Tafeln (P1, P2) trägt,
    - Ausüben einer Kraft auf das Werkzeug (1, 2, 3, 7; 1', 2', 3', 7'),
    - Verlagern des Werkzeugs längs einer programmierten Bahn unter Aufrechterhaltung der auf das Werkzeug (1, 2, 3, 7; 1', 2', 3', 7') ausgeübten Kraft.
EP07823532A 2006-07-03 2007-07-02 Vorrichtung und verfahren zur verbindung zweier bleche durch crimping Active EP2035164B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0652762A FR2903030B1 (fr) 2006-07-03 2006-07-03 Dispositif d'assemblage de deux panneaux de tole par sertissage
PCT/FR2007/051576 WO2008020137A1 (fr) 2006-07-03 2007-07-02 Dispositif d'assemblage de deux panneaux de tole par sertissage

Publications (2)

Publication Number Publication Date
EP2035164A1 EP2035164A1 (de) 2009-03-18
EP2035164B1 true EP2035164B1 (de) 2009-09-16

Family

ID=37814247

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07823532A Active EP2035164B1 (de) 2006-07-03 2007-07-02 Vorrichtung und verfahren zur verbindung zweier bleche durch crimping

Country Status (8)

Country Link
EP (1) EP2035164B1 (de)
CN (1) CN101484255B (de)
AT (1) ATE442923T1 (de)
BR (1) BRPI0711244A2 (de)
DE (1) DE602007002498D1 (de)
ES (1) ES2330976T3 (de)
FR (1) FR2903030B1 (de)
WO (1) WO2008020137A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2987291B1 (fr) * 2012-02-28 2014-03-28 Peugeot Citroen Automobiles Sa Lame de sertissage destinee a etre maintenue et deplacee par un robot, pour sertir les bords de deux pieces en tole
FR2987290B1 (fr) * 2012-02-28 2014-12-26 Peugeot Citroen Automobiles Sa Lame de sertissage destinee a sertir les bords de deux pieces en tole et dispositif de sertissage comportant une telle lame
FR2988311B1 (fr) * 2012-03-23 2014-04-18 Peugeot Citroen Automobiles Sa Dispositif de sertissage comprenant une lame de sertissage et un galet presseur pourvu de stries

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161410A (en) * 1998-08-11 2000-12-19 Unova Ip Corp. Multi-axis roller hemmer
JP3563349B2 (ja) * 1998-09-08 2004-09-08 トライエンジニアリング株式会社 ローラー転圧式加工装置及びローラー転圧式加工方法
JP2001062530A (ja) * 1999-08-31 2001-03-13 Sango Co Ltd ヘミング加工装置
JP3664085B2 (ja) * 2000-05-18 2005-06-22 トヨタ車体株式会社 ロールヘミング加工方法及びロールヘミング装置
JP3623474B2 (ja) * 2001-10-31 2005-02-23 トライエンジニアリング株式会社 ヘミング加工装置およびヘミング加工方法
DE102005004474B3 (de) * 2005-01-31 2006-08-31 Edag Engineering + Design Ag Bördelvorrichtung und Bördelverfahren zum Umlegen eines Bördelstegs eines Bauteils um eine Bördelkante

Also Published As

Publication number Publication date
FR2903030A1 (fr) 2008-01-04
CN101484255A (zh) 2009-07-15
CN101484255B (zh) 2011-03-30
WO2008020137A1 (fr) 2008-02-21
FR2903030B1 (fr) 2009-12-04
DE602007002498D1 (de) 2009-10-29
ES2330976T3 (es) 2009-12-17
EP2035164A1 (de) 2009-03-18
ATE442923T1 (de) 2009-10-15
BRPI0711244A2 (pt) 2011-08-30

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