EP2101926B1 - Installation de revêtement et procédé de revêtement en série de pièces - Google Patents

Installation de revêtement et procédé de revêtement en série de pièces Download PDF

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Publication number
EP2101926B1
EP2101926B1 EP07856385.5A EP07856385A EP2101926B1 EP 2101926 B1 EP2101926 B1 EP 2101926B1 EP 07856385 A EP07856385 A EP 07856385A EP 2101926 B1 EP2101926 B1 EP 2101926B1
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EP
European Patent Office
Prior art keywords
coating
workpieces
robots
longitudinal beam
spray booth
Prior art date
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Active
Application number
EP07856385.5A
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German (de)
English (en)
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EP2101926A1 (fr
Inventor
Vassilios Sougioltzis
Jürgen KÖRMÖCI
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.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0431—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to 3D-surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings

Definitions

  • the invention relates to a coating system and a portal construction for serial coating of workpieces such as in particular vehicle bodies according to the preamble of claim 1 and a corresponding method.
  • paint robots in vehicle body coating systems are usually linearly parallel to the conveyor path of the bodies movable on mounted on the side walls of the spray booth guide rails (driving axis or "axis 7") , In most of today's plants, the bodies are conveyed through the booth during painting in synchrony with the linear motion of the robots, but they can also stand still.
  • the elevated guide rails there less affect the view through the side wall of the cabin and the accessibility to the bodies and / or less polluted by O-spray, which is dissipated by the usual air flow in the cabs down.
  • increased-mounted robots may have the advantage of less disturbing the airflow flowing down from the cabin ceiling along the body sides into the cabin floor than the robots located on the floor adjacent to the body, which narrow the airway directly to the body, causing undesirable elevation can lead to the flow velocity.
  • a painting zone is known in a painting cabin for vehicle bodies with air supply through the upper ceiling wall and two on the side walls vertically stacked accessible control areas, which are arranged above the conveyor arranged robotic guide rails in modular prefabricated side wall panels of the cabin.
  • the support structures of the guide rails are contrary to the frame after WO 2004/037430 or EP 1 609 532 separated in the cabin interior, thus avoiding their cross struts in the cabin interior.
  • Paint booths for vehicle bodies with robot guide rails mounted vertically on top of one another on the cabin walls and with a plurality of painting zones arranged one behind the other along the transport path of the conveyor are out of order EP 0745429 known.
  • An object of the invention is to provide a coating system for vehicle bodies and a corresponding method, which require less construction, investment, tax and operating costs than before.
  • the invention is based on the recognition that by dispensing with the mobility of the robots (ie the "gantry robot") arranged on the portal construction, extremely narrow spray booths can be realized or used.
  • the cabin width can be reduced to about 4 to 4.5 m.
  • the robots can typically be coating robots, in particular painting robots, to which reference will be made below. But it may also be robots for other purposes, in particular handling robots such as door and / or hood manipulators, which may possibly also be placed next to a coating robot. Accordingly, the tool may in particular be atomizers for the coating material or an opener tool for the doors or hoods of vehicle bodies.
  • the cabin width required transversely to the conveying path of the bodies is reduced by the fact that fixed painting robots are not mounted with their basic body on the cabin floor, but on the portal construction, ie much higher and preferably above the body roofs, so that the top mentioned problems in terms of sufficient Lackierabstand the atomizer from the body surfaces and high voltage insulation can be reduced.
  • the elevated arranged painting robots have a much better workspace than in a known manner next to or below the bodies arranged stand robot.
  • an even narrower cabin is made possible by the fact that the relatively wide guide rails of the known gantry robots and the necessary for the mobility wide energy chains with movable control and supply lines omitted.
  • Narrow spray booths in turn, have significant advantages not only in terms of construction and investment costs, which depend on the size and space requirements of the cabin, but also in terms of operating costs, which are required by the known reasons in the cabin to a substantial extent Air flow is determined.
  • the cabin air In addition to the correct flow rate, the cabin air must meet strict quality conditions with regard to purity, temperature and humidity, and the required outlay depends on the required air volume. This effort is reduced by the invention, since the air flow per unit time is smaller in a narrower cabin than in a wider cabin.
  • the invention has the principal advantage that portal structures with robots can be easily installed or installed in already existing or with minimal construction costs and in particular without massive load-bearing walls spray booths.
  • the supports and side members of the gantry structure are arranged on the outside of the paint booth, so that the robots are only with their own body within the cabin and the inside of the cabin at the relevant point around the body is free of other components (so-called clean wall design).
  • This arrangement has the additional advantage that the cables and hoses leading to the robot can be completely outside the paint booth.
  • the installation of the supports, side members, wiring and tubing and the control pulse is usually easier outside the paint booth and especially advantageous if the portal construction according to the invention for an existing cabin should be installed and possibly replace their existing machine technology.
  • a typical vehicle body coating line according to the present invention includes not only one but multiple paint zones with respective spray booths that are separate from one another and in which the bodies are each painted by robots.
  • Spray booth 1 the paint application is carried out on vehicle bodies 2 under the required climatic conditions.
  • the spray mist produced during painting is picked up by the air flowing vertically through the cabin and led to leaching.
  • the air supply to the cabin is provided by a supply air system.
  • the fresh air sucked in from outside with fans is filtered, heated and moistened in several stages, introduced uniformly into the cabin via a pressure chamber through a filter cover with a defined air sink rate and discharged through the grid floor 3.
  • Such paint booths, transported by the bodies of a bottom conveyor 4 are known to those skilled in the art (see, for example DE 20313854 U1 ).
  • the coating of the bodies 2 is carried out by arranged on the two side walls 5 and 5 'of the car 1, for example, four or more painting robots, of which in Fig. 1 the painting robots 6 and 7 are visible.
  • These painting robots can likewise be of a known type, ie in each case have a basic body 8 which carries the usual multi-axis arm construction of an articulated robot with the illustrated two arms and the atomizer 9 mounted on a wrist, usually an electrostatic rotary atomizer or air atomizer.
  • the main body 8 of the robot can be arranged according to the representation approximately at the height of the roof of the conveyed through the paint booths 2.
  • the side walls 5 and 5 'of the car 1 can od of relatively thin material with glass windows. Like. Exist and are not even intended or able to hold the high-level painting robots 6 and 7 and wear. For holding the painting robot rather a specially provided portal construction is present, which consists essentially of a standing near the four corners on legs horizontal rectangular frame. As legs, the two serve in Fig. 1 visible vertical supports 11 on the outer sides of the side walls 5 and 5 'and two of them in the conveying direction of the bodies 2 spaced further (not visible) supports.
  • the frame of the portal construction consists of two in the illustrated example in the side walls 5 and 5 'built or preferably mounted on the outside of the side wall side rails 12 which extend in the conveying direction of the bodies 2 and each rest on two spaced apart in the conveying direction supports 11, and two the two longitudinal members 12 preferably at their ends and in the vicinity of the supports 11 firmly interconnecting transverse struts 13, of which in Fig. 1 only one is visible.
  • the cross struts are provided in the illustrated example with obliquely down to the longitudinal members 12 leading end portions and extend above the bodies 2 transverse to the conveying direction through the car 1 from one side wall 5 to the other side wall 5 '. Possibly.
  • the portal construction can in principle from itself WO 2004/037430 .
  • the longitudinal members 12 have no guide rails for moving the painting robots 6 and 7, which, according to the invention, are fixed rigidly to the respective longitudinal member 12 with their basic body 8.
  • the invention makes it possible to realize a cabin with a width between the insides of the side walls, which not only can be considerably lower than with stationary arrangement of the robots on the cabin floor next to the bodies, but also lower than those with the usual Verfahrschienen providing known portal constructions.
  • a cabin width of 4.6 m measured between the insides of the vertical side walls 5 and 5 ' is sufficient.
  • the length of the cabin 1 measured in the conveying direction can be, for example, approximately 7 m.
  • the cabin can be provided on its outer side with additional usable areas, which can also be walked on to observe the painting operation. Furthermore, in Fig. 1 the range curves (working space or "working room kidney”) of the painting robots 6 and 7 to illustrate their respective freedom of movement.
  • the invention is not limited to those in Fig. 1 illustrated - but preferred - portal construction between the two side walls 5 and 5 'limited.
  • Such possibilities are, inter alia, in the aforementioned patent application EP 06010550.9 described.
  • less or more than the illustrated two stationary robots may be provided on a cabin side.
  • Fig. 2 shows two in a painting line in the conveying direction 20 successively arranged spray booths 1 and 1 'according to Fig. 1 , Each of these spray booths 1 and 1 'forms one of the various painting zones, into which a painting line is usually divided, and each contains a portal construction, as described above, ie with the two side rails 12 and 12' and the two transverse struts 13 and 13 '.
  • the side members 12 and 12 ' can be shown extending over the entire length of the car 1 and 1' between their respective front ends, where the cabins usually by thin, mechanically non-viable, eg transparent end walls ("silhouettes") except for openings can be closed for the bodies.
  • the two spray booths 1 and 1 'and thus the two portal constructions can be closely adjacent along the conveying direction; As shown, the distance may be, for example, about 1 m or less.
  • the painting robots 6 and 7 or 6 'and 7' of the spray booths 1 and 1 ' are distributed along the conveying direction 20 to appropriate positions between the two transverse struts 13 and 13', wherein each of these four robots a car each have a different surface area of the bodies coated as the other three robots.
  • the arrangement of the two painting robots 6 and 6 'on one side and the other two painting robots 7 and 7' on the other side of the spray booth is chosen in accordance with the respective painting concept of the system so that in the cabin preferably the entire outer surface of the Bodies are easiest and can be painted with as little mutual obstruction of the robot and, above all, in a very short time.
  • the painting robots such as 7 on the longitudinal member 12 of a side wall of the spray booth other distances from each other and / or from the cross struts 13 than the painting robot 6 on the longitudinal member 12 of the other side wall.
  • two painting robots lying opposite each other on opposite sides of the car can be offset from each other along the conveying direction 20, ie have different distances from the transverse struts 13.
  • one of the robots can be used specifically for painting the bow or tail area of the bodies.
  • the application of the two layers in two separate spray booths 1 and 1 ' has u. a. the advantage that in the event of a fault in one of the two painting zones, the automatic painting operation can continue in the respective other zone and the then missing other paint coat can be applied in another way.
  • the arrangement of a second spray booth 1 'following the first booth 1 separated from it by the respective end walls may have the purpose of isolating two coating zones having different air buds from each other, such as a zone for electrostatic application with rotary atomizers from a zone Air purifiers in which different Beertsink Wegen are required. It may also be expedient in such or other systems, instead of the example described above, if the robots in one cabin paint other surface areas of the bodies than the robots of the other cabin and / or be arranged at other positions along the conveyor track.
  • topcoat lines two (or more) parallel operated Lackierlinien, in the example considered topcoat (topcoat) lines.
  • spray booths 1 and 1 'two with them with respect to the features described here matching further paint booths (not shown) be present, so that doubling the inventive savings in installation and operating costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Spray Control Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (13)

  1. Installation de revêtement pour le revêtement en série de pièces (2) comme des carrosseries de véhicules avec une cabine de pulvérisation (1) à travers laquelle un dispositif de convoyage (4) transporte les pièces (2) sur un trajet de convoyage parallèle à une des parois latérales (5, 5') de la cabine de pulvérisation (1) ;
    avec une structure de type portail qui
    comprend au moins deux appuis (11) verticaux, disposés à une certaine distance l'un de l'autre le long du trajet de convoyage, adjacents à une des deux parois latérales (5, 5') de la cabine de pulvérisation (1) ou intégrés dans celle-ci, un support longitudinal (12) reliant ces appuis (11) entre eux parallèlement au trajet de convoyage, également adjacent à la paroi latérale (5, 5') ou intégré dans celle-ci, qui est disposé à une hauteur dépassant le côté supérieur des pièces (2) dans la cabine de pulvérisation ou atteignant au moins la proximité de leur côté supérieur,
    ainsi qu'au moins une traverse (13) reliée disposée transversalement par rapport au trajet de convoyage, de manière fixe avec le support longitudinal (12) ;
    et avec au moins un robot (6, 7) qui comprend un corps de base (8) monté sur la structure en portail et un dispositif à bras multi-axe supporté par le corps de base ainsi qu'un outil (9),
    caractérisée en ce que le corps de base (8) du robot (6, 7) est fixé de manière rigide au support longitudinal (12) de la structure en portail.
  2. Installation de revêtement selon la revendication 1, caractérisée en ce que l'au moins une traverse (13) de la structure en portail s'étend au-dessus des pièces (2) entre les deux parois latérales (5, 5') de la cabine de pulvérisation.
  3. Installation de revêtement selon la revendication 1 ou 2, caractérisée en ce que la structure en portail est adjacentes, avec deux appuis verticaux (11) et un support longitudinal (12) chacun aux deux parois latérales (5, 5'), à la cabine (1) ou est intégrée au moins partiellement dans les deux parois latérales.
  4. Installation de revêtement selon la revendication 3, caractérisée en ce que, sur chacun des supports longitudinaux (12) prévus des deux côtés de la cabine est fixé, de manière stationnaire, au moins un robot (6, 7).
  5. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce qu'au moins deux robots (6, 7) sont fixés, avec corps de base (8) correspondants, de manière rigide au ou à chacun des supports longitudinaux (12) de la structure en portail.
  6. Installation de revêtement selon la revendication 5, caractérisée en ce que les corps de base (8), fixés au support longitudinal (12), des deux robots (6, 7) sont disposés à une certaine distance entre eux le long du trajet de convoyage des pièces (2) et à une certaine distance de la traverse (13) la plus proche.
  7. Installation de revêtement selon la revendication 6, caractérisée en ce que les robots (6) présentent, sur le support longitudinal (12) d'une paroi latérale (5) de la cabine de pulvérisation (1), des distances entre eux différentes des robots Be (7) sur le support longitudinal (12) de l'autre paroi latérale (5').
  8. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce que les appuis verticaux (11) et/ou les supports longitudinaux (12) sont disposés à l'extérieur de la paroi latérale (5, 5') de la cabine de pulvérisation (1).
  9. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce que le trajet de convoyage des pièces traverse au moins deux cabines de pulvérisation (1, 1') adjacentes dans la direction de convoyage, qui comprennent chacune une structure en portail avec au moins un robot (6, 7 ; 6', 7') fixé de manière rigide sur leur support longitudinal (12).
  10. Installation de revêtement selon l'une des revendications précédentes, caractérisée en ce que les pièces sont transportées sur au moins deux trajets de convoyage parallèles entre eux, chacun à travers une cabine de pulvérisation ou deux cabines de pulvérisation adjacentes dans la direction de convoyage et chacune de ces cabines de pulvérisation parallèles entre elles comprend une structure en portail avec au moins un robot fixé de manière rigide sur son support longitudinal.
  11. Procédé de revêtement en série de pièces (2) comme des carrosseries de véhicules, dans une cabine de pulvérisation (1), grâce auquel les pièces sont transportées par un dispositif de convoyage (4) sur un trajet de convoyage parallèle aux parois latérales (5, 5') de la cabine de pulvérisation (1),
    avec une structure en portail qui
    comprend, sur un ou les deux côtés de la cabine de pulvérisation (1), au moins deux appuis (11), disposés à une certaine distance le long du trajet de convoyage adjacents à la paroi latérale (5, 5') de la cabine de pulvérisation ou intégrés dans celle-ci,
    un support longitudinal (12) reliant ces appuis (11) entre eux parallèlement au trajet de convoyage, également adjacent à la paroi latérale (5, 5') ou intégré dans celle-ci, qui est disposé à une hauteur dépassant le côté supérieur des pièces (2) ou atteignant au moins la proximité de son côté supérieur,
    ainsi qu'au moins une traverse (13) disposées transversalement par rapport au trajet de convoyage et reliée de manière fixe avec le support longitudinal (12),
    caractérisé en ce que les pièces (2) sont revêtues par au moins deux robots de revêtement (6, 7), dont le corps de base (8) est fixé de manière rigide sur un support longitudinal (12) de la structure en portail,
    chaque robot de revêtement (6, 7) revêtant des zones de surface des pièces (2) différentes de l'autre robot ou des autres robots.
  12. Procédé selon la revendication 11, caractérisé en ce que les pièces (2) sont revêtues par au moins deux robots de revêtement (6, 7) fixés de manière rigide sur les deux côtés de la cabine, de manière rigide sur des supports longitudinaux (12) correspondants de la structure en portail, chacun de ces quatre robots de revêtement revêtant une zone de surface des pièces (2) différente des autres robots de revêtement.
  13. Procédé selon la revendication 11 ou 12, caractérisé en ce que, dans la cabine de pulvérisation (1), est appliquée une première couche puis, dans une cabine de pulvérisation (1') similaire contenant également une structure en portail avec des robots de revêtement (6', 7') fixés de manière stationnaire sur les supports longitudinaux (12), une deuxième couche sur la surface des pièces (2).
EP07856385.5A 2006-12-11 2007-12-05 Installation de revêtement et procédé de revêtement en série de pièces Active EP2101926B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006058350A DE102006058350A1 (de) 2006-12-11 2006-12-11 Beschichtungsanlage und Verfahren zur Serienbeschichtung von Werkstücken
PCT/EP2007/010560 WO2008071329A1 (fr) 2006-12-11 2007-12-05 Installation de revêtement et procédé de revêtement en série de pièces

Publications (2)

Publication Number Publication Date
EP2101926A1 EP2101926A1 (fr) 2009-09-23
EP2101926B1 true EP2101926B1 (fr) 2016-03-23

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ID=39247356

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Application Number Title Priority Date Filing Date
EP07856385.5A Active EP2101926B1 (fr) 2006-12-11 2007-12-05 Installation de revêtement et procédé de revêtement en série de pièces

Country Status (13)

Country Link
US (1) US20110250360A1 (fr)
EP (1) EP2101926B1 (fr)
KR (2) KR20150036821A (fr)
CN (1) CN101626839A (fr)
CA (1) CA2672156C (fr)
DE (1) DE102006058350A1 (fr)
ES (1) ES2576638T3 (fr)
HU (1) HUE028374T2 (fr)
MX (1) MX2009005926A (fr)
PL (1) PL2101926T3 (fr)
PT (1) PT2101926T (fr)
RU (1) RU2441712C2 (fr)
WO (1) WO2008071329A1 (fr)

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CN101954343A (zh) * 2009-07-14 2011-01-26 鸿富锦精密工业（深圳）有限公司 工件印漆方法
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DE102011121343A1 (de) 2011-12-16 2013-06-20 Dürr Systems GmbH Beschichtungsanlage und entsprechendes Betriebsverfahren
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CN113828455B (zh) * 2021-09-28 2022-09-20 湖南金子山电子科技股份有限公司 基于倒钩式喷溅遮挡的电子元器件喷涂设备

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US20110250360A1 (en) 2011-10-13
RU2441712C2 (ru) 2012-02-10
ES2576638T3 (es) 2016-07-08
PL2101926T3 (pl) 2016-09-30
WO2008071329A1 (fr) 2008-06-19
MX2009005926A (es) 2009-07-10
DE102006058350A1 (de) 2008-06-12
EP2101926A1 (fr) 2009-09-23
PT2101926T (pt) 2016-07-07
CA2672156C (fr) 2017-03-07
CN101626839A (zh) 2010-01-13
HUE028374T2 (en) 2016-12-28
KR20090089887A (ko) 2009-08-24
KR20150036821A (ko) 2015-04-07
RU2009126548A (ru) 2011-01-20
CA2672156A1 (fr) 2008-06-19

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