EP0855940A1 - Procede pour reparer des defauts de revetement - Google Patents

Procede pour reparer des defauts de revetement

Info

Publication number
EP0855940A1
EP0855940A1 EP96934693A EP96934693A EP0855940A1 EP 0855940 A1 EP0855940 A1 EP 0855940A1 EP 96934693 A EP96934693 A EP 96934693A EP 96934693 A EP96934693 A EP 96934693A EP 0855940 A1 EP0855940 A1 EP 0855940A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
repair
turret
disk
bore
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96934693A
Other languages
German (de)
English (en)
Other versions
EP0855940B1 (fr
Inventor
Klaus Alders
Bernhard Dill
Jörg DRAEGER
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.)
Audi AG
Original Assignee
Audi AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Audi AG filed Critical Audi AG
Publication of EP0855940A1 publication Critical patent/EP0855940A1/fr
Application granted granted Critical
Publication of EP0855940B1 publication Critical patent/EP0855940B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/005—Repairing damaged coatings

Definitions

  • the invention relates to a method for repairing coating defects with only a small expansion area on a surface coating of a flat component by means of a number of successively used repair tools, the area covered by the repair work remaining essentially restricted to the expansion area of the coating defect.
  • the repair mixture is carried out with the aid of a carrier film and the action of laser beams or alternatively in liquid form
  • Room temperature or also supported by hot air, hot gas or other heat effects e.g. infrared radiation,
  • Japanese Patent Application 1-315374 (B 05 D 7/14) proposes a correspondingly dimensioned mechanical drill (cutting machine) for removing the coating defect (e.g. dust particles), which likewise only has a desired shallow depth in the surface coating should penetrate.
  • the coating defect e.g. dust particles
  • the representation in Figure 1 b of this patent application is completely scaled.
  • the drill diameter corresponds approximately to the total amount of lacquer layer, which in practice is approximately in the range of 50 ⁇ m.
  • the drill would have to have a multiple (e.g. diameter 2 mm) of the size shown.
  • the invention has for its object to optimize the method specified in the preamble of claim 1 for repairing coating defects so that good handling of the individual repair tools is guaranteed and that with the aid of a constant repair quality, the repair work can be carried out quickly.
  • Fig. 3 is a view along line III in Fig. 2 showing the aiming optics
  • FIG. 4 shows a view along line IV in FIG. 2 with a milling unit
  • FIG. 5 is a view along line V in Fig. 2 with a metering unit
  • Fig. 7a is a sectional view along line VII a in Fig. 7 and
  • Fig. 8 shows an alternative (for dovetail guidance) roller bearings used.
  • a device 1 for repairing a coating defect 2 is seated on a flat component 3 to be treated, for example a body part of a motor vehicle.
  • the surface coating e.g. B. painting
  • the surface coating can be in one or more parts and consists in the embodiment of three layers, namely a primer 4, a basecoat 5 and a clearcoat 6.
  • the coating defect is in the form of a dust particle 7 enclosed in the area of basecoat 5 and clearcoat 6, whereby there is also a slight elevation of the otherwise flat surface 8.
  • the coating defect covers only one or all of the lacquer layers.
  • the device 1 is supported on the component surface 8 via three support feet 9, 10, 11 forming the corner points of a triangle actual contact surfaces are formed by vacuum suction cups 13 (eg type FSGA 22-1 / 8 "from Schmalz, possibly with connected supply lines for negative pressure), which then offer secure, displacement-resistant fixation of the device 1 on the component surface 8 vacuum suction cups 13 if the flat component 3 is made of a non-magnetizable material (e.g. aluminum, plastic) If it is made of a corresponding material, the use of permanent magnets or electromagnets is advisable. These should preferably have an adhesive force of 5 - 10 N (Newton)
  • the magnetic base should be gimbal-mounted relative to the respective support base 9, 10, 11 and have a coated adhesive side. This adhesive side (contact surface with the component surface 8) should also have a slightly concave cut
  • the support feet 9, 10, 11 serve to directly receive a base frame 14 with a square base area and a central, essentially also square recess 15.
  • the top of the base frame 14, which faces away from the support feet 9, 10, 11, runs in the region of two opposite side edges and runs parallel to them Ridges 16, which complement each other with correspondingly arranged grooves 17 in the underside of a support frame 18 resting on the base frame 14 to form a dovetail guide.
  • the support frame 18 is of the same square outer contour as the base frame 14 and also has a cutout corresponding to the base frame cutout 15 19 so that both frames 14, 18 are congruent
  • the dovetail guides 16, 17 thus result in a possibility of displacement of the support frame 18 relative to the flat component 3 along an x component (see double arrow)
  • a further web 22 is provided, which is in contact with a groove 23 of a t Shaped disk carrier 24 supplemented to a further dovetail guide, which enables a relative displacement between the disk carrier 24 and the support frame 18 along a y-component (double arrow), so that ultimately the disk carrier 24 relative to the flat component 3 and in Has degrees of freedom of movement.
  • Two actuating units 80, 81 which are identical in their construction are provided for the actuating movements in the x and y directions.
  • a bracket 83 projecting downwards or upwards is fastened to adjacent side edges of the supporting frame 18 approximately centrally between the dovetail guides 16, 17 (adjusting unit 80) or in the region of the dovetail guide 22, 23 (adjusting unit 81) (fastening screw 84).
  • a screw 88 is inserted into a bore 85 but axially immovable (a notch 86 in the screw shaft engages a fixing screw 87 screwed into the bracket 83 at the end).
  • the threaded shaft 89 cooperates with a threaded bore 90 in an L-shaped bracket 91, which is attached to the underside of the base frame 14 (actuating unit 80) or to the top of the disk carrier 24 (actuating unit 81).
  • the threaded shafts 89 of the set screws 88 are preferably equipped with a fine thread, so that a sensitive and exact relative displacement of the components can take place.
  • a longitudinal web of the T-shaped disk carrier 24 is formed in two parts, consisting of two superposed and spaced-apart support arms 25, 26, which have a turret disk 27 made of a transparent material (e.g. Silicate glass) between them and store them centrally over the bearing 28.
  • a transparent material e.g. Silicate glass
  • the outside diameter of the turret disk 27 corresponds approximately to the edge length of the two essentially square recesses 15, 19.
  • a number of notches 30-34 are incorporated along the circumferential line of the turret disk 27, each of which has a spring-loaded (compression spring 35) inserted in the center of the disk carrier 24 )
  • Detent ball 36 cooperate and can thus lock the turret disk 27 in the opposite swivel positions.
  • a number of receiving bores 38-42 are machined into the turret disk 27, diametrically opposite each other and arranged on a concentric (axis of rotation 29) circular line 37. As can also be seen from FIGS 43 used, while the receiving bore 39 carries a manually operated milling unit 44 and ultimately the open.
  • ⁇ anrnebon ⁇ ⁇ r.g 40 accommodates a feed and nozzle unit 45 for the repair mixture.
  • the target optics receiving bore 38 is preceded by a small bore 42 for visual rough positioning of the device 1 above the coating defect 2 when it is placed on the flat component 3
  • the receiving bore 41 is initially unoccupied, but it can optionally be equipped with a further feed and metering unit if two different repair mixtures (e.g. basecoat and clearcoat) had to be introduced one after the other into the flaw in the surface coating previously freed from the coating defect by the milling unit 44
  • the bore 41 could alternatively also be fitted with a suitable drying unit, provided that, as is the case in the prior art cited at the beginning, it would also be advisable, under certain circumstances, to grind the surface for the final treatment , this could also be used alternatively in the receiving bore 41
  • the receiving bores 38-42 provided in the exemplary embodiment ultimately prove to be insufficient the turret disk 27 along the said circular line 37 offers sufficient End space to provide additional receiving bores for functional units to be used accordingly, it would also be conceivable, for example, to place a (battery-operated) glare-free lighting device on the support arm 25 in order to enable the detection and elimination of even the
  • the aiming optics 43 shown schematically in an enlarged scale in FIG. 3 serves the purpose of positioning the circular line 37 and thus the repair tools arranged thereon and following the aiming optics 43 (early 44 feed and dosing unit 45 etc.) exactly above the coating defect 2 to be repaired
  • Pre-positioning by means of bore 42 requires only slight actuating movements of actuating units 80, 81
  • the target optics 43 can have a basic structure known per se in the prior art. Its longitudinal axis 46 is oriented orthogonally with respect to the plane of the turret disk 27 and thus also with respect to the component surface 8.
  • a sleeve receptacle 52 is inserted into the receiving bore 38 of the turret disk 27 and fastened there (for example glued), which carries an internal thread 53 which cooperates with an external thread 54 machined on the outer circumference of the sleeve 48.
  • a lock nut 50 is used to fix the setting found.
  • a worm drive could also be provided.
  • FIG. 4 shows an exemplary embodiment of a milling unit 44 on an enlarged scale.
  • This consists of a grip sleeve 55, a depth stop sleeve 56 inserted therein, a router pin 58 guided in a central through bore 57 of the same with an associated head part 59, which in turn is guided in a concentric bore 60 of the grip sleeve 55 so as to be longitudinally movable.
  • the depth stop sleeve 56 is detachably connected to the handle sleeve 55 via thread 62 for the purpose of disassembling the entire milling unit 44. Since the coating defects to be eliminated can be of different sizes, it is provided that the depth stop sleeve 56 and milling pin 58 with head part 59 are designed to be interchangeable as a set, depending on the desired effective milling cutter diameter (eg 2 mm). Furthermore, depending on the application and type and the occurrence of the coating error, it may be necessary to use the cutter pin 58, which has a flat cutting edge geometry parallel to the component surface 8 (face milling cutter) of different depths (orders of magnitude 0.01 to 0.05 mm) penetrate the component surface 8 and remove only one, both or all of the coating layers.
  • face milling cutter face milling cutter
  • the milling pin 58 is moved downward by moving the head part 59 until it protrudes from the depth stop sleeve 56 with the desired depth dimension (dimension -a- in FIG. 4), after which fixation in this position by means of the grub screw 64 can be made.
  • Said unit is in turn received by a sleeve 75 which is inserted into the receiving bore 39 of the turret disk 27 and fastened there (for example glued).
  • a compression spring 76 is inserted into the sleeve 75 and is supported on the underside of the grip sleeve 55.
  • a set screw 77 inserted further into the sleeve 75 engages with its screw shaft 78 in a circumferential groove 79 of the grip sleeve 55 and thus limits its axial displacement.
  • cutter bit 58 penetrates into the component surface 8 until an abutment shoulder 65 of the depth stop sleeve 56 comes into contact with the component surface 8.
  • the basic positioning of the entire device 1 for repairing the coating defect 2 takes place, as already mentioned, in such a way that it is placed on the component surface 8 and fixed there by means of visual inspection via the bore 42 (vacuum suction device 13) such that the bore 42 and so that the circular line 37 of the turret disk 27 comes to lie approximately above the coating error 2 to be repaired.
  • the feed and metering unit 45 (cf. FIG. 5) for the repair mixture can be a structural unit known in the prior art and used for comparable cases (eg EFD Ultra system, automatic metering device 1500 XL, from EFO). This allows one Exact adjustment of dosing time and dosing quantity
  • the essential components are a dosing needle 66 attached at the end, a cartridge 67 receiving it with a plug 68 then inserted, which delimits the space for the filled-in repair mixture 69, and a head part 70, which closes the cartridge 67 upwards, into which a Compressed air connection 71 merges for the purpose of axial displacement of the feed and metering unit 45 in a sleeve 73 receiving it and held in the receiving bore 40 of the turret disk 27, the inner diameter of the sleeve 73 and the outer diameter of the cartridge 67 are matched to one another such that the feed and metering unit 45 is held by friction
  • a precisely metered lacquer or repair mixture 69 is introduced into the resulting cavity by means of the feed and metering unit 45 First a basecoat and in a second step a clear coat covering this
  • the lacquer or repair mixture can be liquid, pasty or powdery.
  • the introduction into the cavity can be carried out drop by drop or sprayed, by means of gravity, pneumatically, hydraulically or using a piezo crystal.
  • the lacquer or repair mixture can also be used appropriate tool (e.g. pen, single or multi-walled needle) post-compressed, ie pressed to the bottom of the cavity.
  • the paint or repair mixture can be introduced into the cavity as a film provided with an adhesive layer.
  • the use of a gripping device can also be helpful for this.
  • an introduction by means of a commercially available touch-up pen is also possible.
  • B a pipette from EPPENDORr (- .. B KsfS ⁇ o- .se 4850) is ⁇ i ⁇ giic; -.
  • FIG. 6 and 7 an alternative embodiment of a disk carrier or a turret disk is shown in two views.
  • the turret disk 100 is in turn equipped with a number of receiving bores 138 to 140, 142 for roughly prepositioning the entire device 103 when it is placed on the flat component 3 or for receiving the target optics 43, the milling unit 44 and the feed and metering unit 45. All receiving bores 138 to 140, 142 are in turn arranged on the circular line 137 (cf. rotation axis 129).
  • a disk carrier 104 has a lower support frame 105 which is provided with a circular cutout 106 which has a diameter which is slightly smaller than the outer diameter of the revoiver disk 100 so that it can be arranged concentrically thereon
  • each disk holder 108,109 on the said side has a circular-limp curved shoulder 110, the radius of curvature of which is slightly larger than that of the turret disk 100 and the height of which is also somewhat larger than the thickness of the turret disk 100, so that it is subject to narrow tolerances, but can nevertheless be moved (rotated) relatively freely.
  • Each disk holder 108, 109 covers the turret disk 100 in the edge region, as can be seen in FIG. 7a
  • a base frame 111 has, for example, a roller mounting support 112 for both sides of it and fixed to the base frame 111 connected (e.g. by means of fastening screws) elongated (extending over the length of the base frame 111) roller receptacles 113 on these are assigned further, correspondingly elongated roller receptacles 114, which are inserted into a recess 115 in the support frame 116. Between each adjacent roller receptacle 113, 114 there are inclined cylindrical roller bearings 117 used, which are also capable of absorbing vertical forces.
  • the entire roller guide can be preloaded by means of pressure screws 118 acting on the roller holder 114 on the support frame side, which are inserted into threaded holes 119 in the support frame 116

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Balance (AREA)
  • Coating Apparatus (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

L'invention concerne un procédé de réparation de défauts (2) de faible étendue affectant le revêtement superficiel d'un composant (3) plat, par exemple, d'une pièce de carrosserie de véhicule, au moyen d'un certain nombre d'outils (44,45) d'utilisation successive. Les surfaces concernées par les travaux de réparation sont limitées à l'étendue des défauts (2) du revêtement. Afin de garantir une bonne manipulation des différents outils (44,45) et une exécution rapide des opérations pour une même qualité de réparation, l'invention propose que les outils (44,45) de réparation soient approchés de la zone des défauts du revêtement en étant montés sur un porte-outil (1;103) commun dans un alignement et un ordre définis et qu'après positionnement du porte-outil (1;103) sur le composant (3) plat et ajustement d'un (44) des outils (44,45) au moyen, de préférence, d'ajusteurs (42,43) optiques, d'autres outils (45) arrivent dans leur position d'usinage correcte grâce au mouvement d'un support (27;100) dans lequel sont logés les outils.
EP96934693A 1995-10-20 1996-10-15 Procede pour reparer des defauts de revetement Expired - Lifetime EP0855940B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19539065A DE19539065A1 (de) 1995-10-20 1995-10-20 Verfahren zum Ausbessern von Beschichtungsfehlern
DE19539065 1995-10-20
PCT/EP1996/004481 WO1997015403A1 (fr) 1995-10-20 1996-10-15 Procede pour reparer des defauts de revetement

Publications (2)

Publication Number Publication Date
EP0855940A1 true EP0855940A1 (fr) 1998-08-05
EP0855940B1 EP0855940B1 (fr) 2000-03-08

Family

ID=7775329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96934693A Expired - Lifetime EP0855940B1 (fr) 1995-10-20 1996-10-15 Procede pour reparer des defauts de revetement

Country Status (6)

Country Link
US (1) US6187375B1 (fr)
EP (1) EP0855940B1 (fr)
JP (1) JPH11513611A (fr)
DE (2) DE19539065A1 (fr)
ES (1) ES2143235T3 (fr)
WO (1) WO1997015403A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
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DE19646956C1 (de) * 1996-11-13 1998-05-20 Daimler Benz Ag Verfahren zur Reparatur kleiner Lackfehler in Lackschichten
DE19809982B4 (de) * 1998-03-09 2007-09-27 Volkswagen Ag Verfahren zum kleinflächigen Reparieren von Lackfehlerstellen einer Lackbeschichtung
DE19955012A1 (de) * 1999-11-16 2001-05-17 Volkswagen Ag Verfahren zur Beseitigung punktförmiger Lackerhebungen
DE19963591C2 (de) * 1999-12-23 2002-11-07 Vsevolod Vassiliev V & K Autop Verfahren zum Ausbessern von Schadstellen in Lackflächen
US6991524B1 (en) * 2000-07-07 2006-01-31 Disc Go Technologies Inc. Method and apparatus for reconditioning digital discs
US20020132044A1 (en) * 2001-03-19 2002-09-19 Quarles James H. Scratch repair procedure
DE10225830A1 (de) * 2002-06-11 2004-01-08 Dr.-Ing. Willing Gmbh Glanzspot
DE102008027197B4 (de) 2008-06-06 2022-02-10 Status Pro Maschinenmesstechnik Gmbh Verfahren zum Bearbeiten von Werkstückoberflächen
EP2585959A4 (fr) 2010-06-25 2015-07-29 Coatings Foreign Ip Co Llc Système de fabrication et de distribution de revêtement coloré correspondant et son utilisation
GB201301008D0 (en) * 2013-01-21 2013-03-06 Essam Austin J Automated apparatus for analysing and repairing damage to motor vehicle paintwork
US10439375B2 (en) 2014-04-14 2019-10-08 Halliburton Energy Services, Inc. Wellbore line coating repair
DE102020134087A1 (de) 2020-12-18 2022-06-23 Gema Switzerland Gmbh Anlage zum beschichten von gegenständen mit beschichtungsmaterial sowie verfahren zum beschichten von gegenständen mit beschichtungsmaterial

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Also Published As

Publication number Publication date
DE19539065A1 (de) 1997-04-24
DE59604614D1 (de) 2000-04-13
EP0855940B1 (fr) 2000-03-08
JPH11513611A (ja) 1999-11-24
US6187375B1 (en) 2001-02-13
ES2143235T3 (es) 2000-05-01
WO1997015403A1 (fr) 1997-05-01

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