EP3048181A1 - Installation and method for producing a metallic coating on a workpiece - Google Patents

Installation and method for producing a metallic coating on a workpiece Download PDF

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Publication number
EP3048181A1
EP3048181A1 EP15151718.2A EP15151718A EP3048181A1 EP 3048181 A1 EP3048181 A1 EP 3048181A1 EP 15151718 A EP15151718 A EP 15151718A EP 3048181 A1 EP3048181 A1 EP 3048181A1
Authority
EP
European Patent Office
Prior art keywords
coating
workpiece
station
plant according
lance
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
EP15151718.2A
Other languages
German (de)
French (fr)
Other versions
EP3048181B1 (en
Inventor
Andreas Ebenbeck
Gerhard Aufschläger
Marc Kesting
Ralf VÖLLINGER
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.)
Sturm Maschinen und Anlagenbau GmbH
Original Assignee
Sturm Maschinen und Anlagenbau GmbH
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
Priority to ES15151718T priority Critical patent/ES2715875T3/en
Application filed by Sturm Maschinen und Anlagenbau GmbH filed Critical Sturm Maschinen und Anlagenbau GmbH
Priority to PL15151718T priority patent/PL3048181T3/en
Priority to EP15151718.2A priority patent/EP3048181B1/en
Priority to HUE15151718A priority patent/HUE041844T2/en
Priority to CA2970066A priority patent/CA2970066C/en
Priority to CN201680006299.9A priority patent/CN107208245B/en
Priority to KR1020177019149A priority patent/KR102054697B1/en
Priority to PCT/EP2016/050745 priority patent/WO2016116364A1/en
Priority to JP2017537400A priority patent/JP6629865B2/en
Priority to US15/543,831 priority patent/US10287666B2/en
Publication of EP3048181A1 publication Critical patent/EP3048181A1/en
Application granted granted Critical
Publication of EP3048181B1 publication Critical patent/EP3048181B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/084—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to condition of liquid or other fluent material already sprayed on the target, e.g. coating thickness, weight or pattern
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/134—Plasma spraying
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
    • C23C4/16—Wires; Tubes
    • 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
    • B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
    • B05B13/0242—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the objects being individually presented to the spray heads by a rotating element, e.g. turntable
    • 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
    • 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
    • B05B13/06—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 specially designed for treating the inside of hollow 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
    • B05B13/06—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 specially designed for treating the inside of hollow bodies
    • B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
    • B05B13/0636—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies by means of rotatable spray heads or nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/68—Arrangements for adjusting the position of spray heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
    • B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
    • B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc

Definitions

  • the invention relates to a plant for the metallic coating of a workpiece with a coating device, which has a movable coating lance, by which a metal plasma jet for forming a coating of metal articles can be generated, according to the preamble of claim 1.
  • the invention further relates to a method for the metallic coating of a workpiece with a movable coating lance, by means of which a metal plasma jet is generated, wherein a metallic coating of metal particles is formed on the workpiece, according to the preamble of claim 14.
  • the coating lance is moved into a cylinder bore of an engine block, wherein the generated metal plasma jet is directed to the bore wall.
  • From the DE 199 34 991 A1 shows a plant for the metallic coating of a workpiece, in which various processing stations are arranged linearly along a belt conveyor. As a final processing station, the coating of the workpiece is provided. Subsequently, the workpiece is removed directly from the plant.
  • the invention has for its object to provide a system and a method for the metallic coating of a workpiece, which allow a particularly efficient and accurate application of the coating.
  • the system according to the invention is characterized in that the coating device with the coating lance and a measuring device for measuring the coating thickness are integrated in the system and that the coating device with the coating lance and the measuring device are enclosed by a housing.
  • a basic idea of the invention can be seen in the fact that the processes of coating and measuring of the applied coating are brought close together, so that overall immediate and therefore more accurate statements about the coating that has taken place can be made.
  • This is achieved in that the coating device and the measuring device are arranged in the same system and in particular on the same machine bed and are enclosed by a common housing.
  • the determined measurement data of the measuring device, in particular the layer thickness and the contour of the applied coating allow very accurate conclusions about the coating process. This can be used in the control of the coating apparatus for coating a subsequent workpiece can be used in a timely manner to prevent any possible incorrect coatings.
  • the invention thus takes a different route in comparison with known systems in which, due to the risk of undesired deposits by the metal overspray in the coating device, the measuring device has been significantly spaced and arranged separately from the coating device. With reduction of a necessary travel of the coated workpiece from the coating device to the measuring device increases according to a finding of the invention, the positioning and thus measurement inaccuracy.
  • the housing has a loading station for feeding and discharging the workpiece, that the measuring device is arranged in the loading station and that the measuring device is additionally designed for measuring the workpiece before coating.
  • the workpiece thus passes through twice the charging station of the system, namely during feeding and during removal of the workpiece.
  • the measuring device can thus fulfill a dual function, namely the measurement of the workpiece before coating and then measuring the workpiece with the coating.
  • a measurement by recording the bore contour by the measuring device can thus take place with particularly great accuracy. Because the measuring device detects the surface of the uncoated hole and then the surface contour of the coated bore. By a corresponding comparison of the measurement results, a particularly accurate determination of the layer thickness and the layer thickness profile can thus be determined.
  • the measuring device has a movable measuring sensor, which can be moved between a calibration station and a workpiece holder in the loading station.
  • the measuring device may in particular have an optical measuring sensor, which preferably cooperates with a laser device.
  • These basically known measuring devices allow an exact detection of a surface contour.
  • a diameter of a bore and in particular a diameter profile over the axial length of the bore can be detected.
  • the workpiece remains from the time of feeding to removal in the system on a workpiece holder, in particular a workpiece holder or a workpiece pallet, so that a positioning of the workpiece with high repeatability in the repeated measurement is possible.
  • a further advantageous embodiment of the invention consists in that the coating device is arranged in a processing station, which is separated from the loading station, and that a cleaning station for cleaning the coating lance is arranged in the processing station.
  • the coating and measuring can be carried out spatially close, but without undesirable interactions with each other.
  • An improvement in the accuracy of the order is further increased according to a variant of the invention in that a cleaning station is provided in the processing station, with which at certain times the coating lance is cleaned of accumulated metal particles.
  • a further improvement can still be achieved by arranging in the processing station a test station for testing the metal plasma jet generated by the coating lance.
  • the beam pattern can be detected, measured and compared with a desired beam pattern, for example, by means of a camera. If deviations are detected to an excessive extent, a maintenance, in particular a cleaning of the coating lance in the cleaning station can be initiated by a controller.
  • the test results can also be used directly for controlling the coating apparatus and in particular for forming the metal plasma jet.
  • a further improvement is achieved according to another embodiment of the invention in that a suction device is provided, through which for sucking air from the coating device of the calibration, the Test station and / or the cleaning station is formed.
  • metal overspray can thus be removed from the processing station during the coating with the ambient air.
  • the plant with the suction device is designed so that in the processing station with the coating device relative to the environment and in particular the charging station with the measuring device, a certain negative pressure is set. With this negative pressure, a transfer of overspray from the processing station into the charging station with the measuring device can be counteracted. This prevents impairment of the measuring device by unwanted metal accumulation by overspray.
  • the processing station and the charging station are separated by a partition wall and that the partition has at least one closable passage.
  • the partition which divides the housing into two sections, hermetically separates the processing station and the charging station. This serves in particular to prevent a transfer of overspray from the processing station to the charging station with the measuring device and thus unwanted deposits of metal particles on the sensitive measuring device.
  • For the passage of the workpiece from the loading station in the processing station at least one passage in the partition wall is provided, which is closable. The passage is opened in each case only for a brief moment for the passage of the workpiece from one station to the other.
  • the passage is closed by a closure element, which releases the passage for the passage of the workpiece.
  • the closure element may be a door and in particular a displaceable or pivotable closure plate.
  • a servomotor By a servomotor, a control cylinder or by an adjustment mechanism while the closure element is moved to a release position when the workpiece reaches the passage. After passage of the workpiece, the closure element is moved back into the closed position in which the passage is sealed.
  • a particularly efficient operation of the system according to the invention results according to a further preferred embodiment in that the at least one workpiece holder can be moved by means of a conveyor which has an annular circulation path.
  • the conveyor can be any circulation conveyor, such as a chain conveyor, a belt conveyor or a similar conveyor with endless circulating conveyor element.
  • the conveyor is designed as a turntable, which is arranged horizontally movable.
  • the turntable can have space for preferably two or more workpiece holders.
  • a passage serves for the passage of the workpiece from the loading station into the processing station, while the second passage serves in a reverse manner for the passage of the workpiece from the processing station into the loading station.
  • a further preferred embodiment of the invention is that the conveyor is formed horizontally encircling and that the workpiece holder on the conveyor adjustable, in particular pivotable about a horizontal pivot axis, is mounted.
  • the workpiece holder in which the workpiece is held and clamped, arranged horizontally in a basic orientation.
  • the workpieces can each have a horizontal position Swiveling pivot axis and be adjusted that the respective cylinder bores to be machined are aligned vertically. This allows both a precise coating by the vertically movable coating lance and an accurate measurement by the measuring device, in which the measuring sensor is also mounted vertically movable.
  • the method according to the invention is characterized in that the formation of the coating and the measurement of the coating thickness are carried out integrated in a system which has been described above. With this method according to the invention, the advantages described above can be achieved when coating a workpiece, in particular when coating bores in a workpiece.
  • the invention is preferably provided for coating bores in workpieces, in particular cylinder bores in engine blocks. Other applications are also possible.
  • FIGS. 1 to 4 An inventive system 10 for the metallic coating of holes 3 in a workpiece 1 is in FIGS. 1 to 4 shown.
  • the workpiece 1 is in the illustrated embodiment, an engine block with 12 holes 3, which are arranged as cylinder bores in two rows of six in V-shape in the workpiece 1.
  • the system 10 has a machine bed 11 on which a housing 13 is arranged.
  • the box-shaped housing 13 encloses a loading station 12 and a processing station 14 with a coating device 29.
  • a base frame 16 of a conveyor 20 is arranged, which is formed in the illustrated embodiment as a turntable 22.
  • the rotatable about a vertical axis of rotation driven horizontal turntable 22 has two opposite workpiece holders 23, in each of which a plate-shaped pallet module 21, each with a workpiece 1 is receivable. Via a pivoting device 26, the pallet module 21 can be pivoted with the workpiece 1 relative to the horizontal, so that the holes 3 in the workpiece 1 can be arranged vertically to carry out a metallic coating.
  • the workpiece 1 is received at the loading station 12 by a feed device, not shown.
  • the housing 13 has in the region of the charging station 12 an opening, not shown, with a door. Furthermore, in the region of the charging station 12, a measurement of the workpiece 1 can take place with a measuring device 52. Subsequently, the turntable 22 is rotated by 180 °, wherein the workpiece 1 is conveyed from the loading station 12 to the opposite processing station 14.
  • the processing station 14 is separated from the charging station 12 via a partition wall 24. In Fig. 2 the partition 24 is only partially shown in the lower area. However, the partition 24 extends through the entire space of the housing 13, so that the processing station 14 is sealed off from the charging station 12.
  • the passages 25 are each closed by a sliding closure element 27, which can be opened for the passage of the workpiece 1 and then closed again.
  • the workpiece 1 is pivoted with the pivoting device 26 about a horizontal pivot axis, wherein in each case a series of holes 3 is aligned vertically, as shown in FIGS FIGS. 1 to 4 is apparent.
  • a coating device 29 with a rod-shaped coating lance 30 is provided, which has at its lower end at least one outlet opening 32 for a metal plasma jet.
  • the metal plasma jet is generated in a known manner by a plasma generator with a cathode and a metallic anode. By means of a correspondingly high electrical voltage, an arc is formed between the cathode and the anode, by means of which the metallic anode is melted.
  • the metallic anode is designed as a feedable wire, so that there is always sufficient material to form a metal plasma jet with the molten metal particles.
  • a supply of powder may be provided instead of a wire.
  • a gas stream is generated, which emerges at supersonic speed from the outlet opening 32 at the lower end of the coating lance 30 approximately horizontally.
  • the coating lance 30 is retracted with the outlet opening 32 in the bore 3 to be coated in the workpiece 1.
  • the coating device 29 further comprises a sleeve-shaped suction bell, which surrounds the coating lance 30, but in the FIGS. 1 to 4 is not shown for reasons of clarity.
  • a portal device 40 with two parallel first track axes 41 is provided.
  • a frame-like first carriage 47 is mounted horizontally movable.
  • the first traversing carriage 47 itself has two linear, horizontal second traverse axes 42, which are arranged parallel to one another and perpendicular to the first traverse axes 41.
  • a beam-shaped second carriage 48 is arranged horizontally movable.
  • the second carriage 48 itself has a single vertical third travel axis 43.
  • a receiving carriage 45 is mounted vertically movable.
  • the coating lance 30 is rotatably supported.
  • the coating lance 30 of the coating device 29 is retracted into a first bore 3 to be coated in the workpiece 1.
  • the continuously operated coating lance 30 thereby generates a metal plasma jet which impinges on a bore wall of the bore 3 at supersonic speed.
  • a uniform defined metallic coating with a thickness of for example 10 .mu.m to 300 .mu.m is applied to the bore wall.
  • the coating lance 30 from the first coated bore 3 of the metal plasma jet is directed directly on exit from the bore 3 on an impact surface of a receiving unit in a suction bell, not shown, which is supported together with the coating lance 30 on the receiving carriage 45.
  • the receiving unit receives the particles of the metal plasma jet and is moved together with the coating lance 30 to the next hole to be coated 3.
  • the metallic coating is repeated at this second bore 3, wherein a corresponding coating of the further bore 3 in a row of the workpiece 1 is connected.
  • the workpiece 1 can be pivoted about the pivoting device 26 about a horizontal axis, so that the second row of the engine block is arranged for processing in the vertical position. Then, a coating of these six holes 3 in the engine block-like workpiece 1 can join.
  • the coating lance 30 is retracted with the portal device 40 and the finished coated workpiece 1 can be fed back with the simultaneous feed of a new workpiece to be machined 1 in the charging station 12 through the right passage 25.
  • the closure element 27 is opened at the passage 25.
  • a new workpiece 1 is conveyed from the loading station 12 into the processing station 14 through the opened left passage 25 with the rotary movement of the turntable 22.
  • the layer thickness and contour of the applied coating can be measured.
  • the measuring device 52 With the measuring device 52, the still uncoated holes 3 of a newly supplied workpiece 1 can be measured in advance, so that even more accurate testing of the performed coating by comparing the measurement data is possible.
  • the coated workpiece 1 can then in the loading station 12 from the workpiece holder 23 of the turntable 22 are removed. Thereafter, a new workpiece 1 in the workpiece holder 23 of the conveyor 20 can be used.
  • the coating lance 30 can be moved at certain time intervals to a test station 54 for checking the jet pattern of the metal plasma jet or to a cleaning station 60.
  • the measuring device 52 has a laser, with which can be detected by retracting the measuring device 52 vertically into a bore 3 of the workpiece 1 on the handling robot 50, the contour shape and the diameter of the bore 3 over the axial length of the bore 43.
  • the controller can set and change setting parameters of the coating device 29, in particular parameters for adjusting the metal plasma jet or the movement data of the coating lance 30, in order to counteract undesirable developments in the coating of subsequent workpieces 1 in good time.

Abstract

Die Erfindung betrifift eine Anlage und ein Verfahren zur metallischen Beschichtung eines Werkstücks mit einer Beschichtungsvorrichtung, welche eine verfahrbare Beschichtungslanze aufweist, durch welche ein Metall-Plasmastrahl zum Bilden einer Beschichtung aus Metallpartikeln erzeugbar ist. Gemäß der Erfindung ist vorgesehen, dass die Beschichtungsvorrichtung mit der Beschichtungslanze und eine Messeinrichtung zur Messung der Beschichtungsdicke integriert in der Anlage ausgebildet sind und dass die Beschichtungsvorrichtung mit der Beschichtungslanze und die Messeinrichtung von einem Gehäuse umschlossen sind.The invention relates to a system and a method for the metallic coating of a workpiece with a coating device, which has a movable coating lance through which a metal plasma jet for forming a coating of metal particles can be generated. According to the invention, it is provided that the coating device with the coating lance and a measuring device for measuring the coating thickness are integrated in the system and that the coating device with the coating lance and the measuring device are enclosed by a housing.

Description

Die Erfindung betrifft eine Anlage zur metallischen Beschichtung eines Werkstücks mit einer Beschichtungsvorrichtung, welche eine verfahrbare Beschichtungslanze aufweist, durch welche ein Metall-Plasmastrahl zum Bilden einer Beschichtung aus Metallartikeln erzeugbar ist, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a plant for the metallic coating of a workpiece with a coating device, which has a movable coating lance, by which a metal plasma jet for forming a coating of metal articles can be generated, according to the preamble of claim 1.

Die Erfindung betrifft weiterhin ein Verfahren zur metallischen Beschichtung eines Werkstücks mit einer verfahrbaren Beschichtungslanze, durch welche ein Metall-Plasmastrahl erzeugt wird, wobei eine metallische Beschichtung aus Metallpartikeln an dem Werkstück gebildet wird, gemäß dem Oberbegriff des Anspruchs 14.The invention further relates to a method for the metallic coating of a workpiece with a movable coating lance, by means of which a metal plasma jet is generated, wherein a metallic coating of metal particles is formed on the workpiece, according to the preamble of claim 14.

Insbesondere im Motorenbau ist es erforderlich, die Laufflächen von Zylinderbohrungen mit einer speziellen metallischen Beschichtung zu versehen, damit hinreichende Reibungs- und Schmierbedingungen zwischen der Zylinderlauffläche und einem Zylinderkolben gewährleistet sind. Dies gilt vor allem dann, wenn sowohl das Motorengehäuse wie auch der Zylinderkolben aus demselben Metall, etwa aus Aluminium, gefertigt sind.In particular, in engine construction, it is necessary to provide the running surfaces of cylinder bores with a special metallic coating, so that adequate friction and lubrication conditions between the cylinder surface and a cylinder piston are ensured. This is especially true when both the engine housing and the cylinder piston are made of the same metal, such as aluminum.

Aus der gattungsbildenden DE 199 34 991 A1 oder der WO 2004/005575 A2 ist es bekannt, unmittelbar auf eine Bohrungswand eine Metallbeschichtung durch eine Beschichtungslanze aufzubringen, mit welcher ein Metall-Plasmastrahl erzeugt wird. Auf diese Weise können sehr dünnwandige und sehr stabile Metallbeschichtungen an Bohrungswänden gebildet werden.From the generic DE 199 34 991 A1 or the WO 2004/005575 A2 It is known to apply directly to a bore wall a metal coating through a coating lance, with which a metal plasma jet is generated. In this way, very thin-walled and very stable metal coatings can be formed on bore walls.

Dabei wird die Beschichtungslanze in eine Zylinderbohrung eines Motorblocks gefahren, wobei der erzeugte Metall-Plasmastrahl auf die Bohrungswand gerichtet wird.In this case, the coating lance is moved into a cylinder bore of an engine block, wherein the generated metal plasma jet is directed to the bore wall.

Aufgrund einer gewissen Streuung des Metall-Plasmastrahles gelangen nicht alle Metallpartikel auf die Bohrungswand. Diese nicht aufgebrachten Metallpartikel werden als Overspray bezeichnet und können zu unerwünschten Fehlbeschichtungen in dem Motorblock oder an der Beschichtungseinrichtung führen.Due to a certain scattering of the metal plasma jet, not all metal particles reach the bore wall. These unapplied metal particles are referred to as overspray and can lead to undesirable spurious coatings in the engine block or on the coater.

Aus der DE 199 34 991 A1 geht eine Anlage zur metallischen Beschichtung eines Werkstücks hervor, bei welcher verschiedene Bearbeitungsstationen linear entlang eines Bandförderers angeordnet sind. Als eine abschließende Bearbeitungsstation ist das Beschichten des Werkstückes vorgesehen. Anschließend wird das Werkstück unmittelbar aus der Anlage entfernt.From the DE 199 34 991 A1 shows a plant for the metallic coating of a workpiece, in which various processing stations are arranged linearly along a belt conveyor. As a final processing station, the coating of the workpiece is provided. Subsequently, the workpiece is removed directly from the plant.

Der Erfindung liegt die Aufgabe zugrunde, eine Anlage und ein Verfahren zur metallischen Beschichtung eines Werkstücks anzugeben, welche ein besonders effizientes und genaues Aufbringen der Beschichtung ermöglichen.The invention has for its object to provide a system and a method for the metallic coating of a workpiece, which allow a particularly efficient and accurate application of the coating.

Die Aufgabe wird nach der Erfindung zum einen durch eine Anlage mit den Merkmalen des Anspruchs 1 und zum anderen durch ein Verfahren mit den Merkmalen des Anspruchs 14 gelöst. Bevorzugte Ausführungen der Erfindung sind in den jeweils abhängigen Ansprüchen angegeben.The object is achieved according to the invention on the one hand by a system with the features of claim 1 and on the other hand by a method having the features of claim 14. Preferred embodiments of the invention are specified in the respective dependent claims.

Die erfindungsgemäße Anlage ist dadurch gekennzeichnet, dass die Beschichtungsvorrichtung mit der Beschichtungslanze und eine Messeinrichtung zur Messung der Beschichtungsdicke integriert in der Anlage ausgebildet sind und dass die Beschichtungsvorrichtung mit der Beschichtungslanze und die Messeinrichtung von einem Gehäuse umschlossen sind.The system according to the invention is characterized in that the coating device with the coating lance and a measuring device for measuring the coating thickness are integrated in the system and that the coating device with the coating lance and the measuring device are enclosed by a housing.

Ein Grundgedanke der Erfindung kann darin gesehen werden, die Vorgänge des Beschichtens und des Vermessens der aufgebrachten Beschichtung nahe zusammenzuführen, so dass insgesamt unmittelbare und damit genauere Aussagen über die erfolgte Beschichtung getroffen werden können. Dies wird dadurch erreicht, dass die Beschichtungsvorrichtung und die Messeinrichtung in derselben Anlage und insbesondere auf demselben Maschinenbett angeordnet und von einem gemeinsamen Gehäuse umschlossen sind. Die ermittelten Messdaten der Messeinrichtung insbesondere zur Schichtdicke und zur Kontur der aufgebrachten Beschichtung ermöglichen sehr genaue Rückschlüsse auf den Beschichtungsvorgang. Dies kann bei der Steuerung der Beschichtungsvorrichtung zum Beschichten eines nachfolgenden Werkstückes zeitnah genutzt werden, um eventuellen Fehlbeschichtungen vorzubeugen.A basic idea of the invention can be seen in the fact that the processes of coating and measuring of the applied coating are brought close together, so that overall immediate and therefore more accurate statements about the coating that has taken place can be made. This is achieved in that the coating device and the measuring device are arranged in the same system and in particular on the same machine bed and are enclosed by a common housing. The determined measurement data of the measuring device, in particular the layer thickness and the contour of the applied coating allow very accurate conclusions about the coating process. This can be used in the control of the coating apparatus for coating a subsequent workpiece can be used in a timely manner to prevent any possible incorrect coatings.

Die Erfindung geht somit einen unterschiedlichen Weg im Vergleich zu bekannten Anlagen, bei denen aufgrund der Gefahr von unerwünschten Anlagerungen durch den Metall-Overspray in der Beschichtungsvorrichtung die Messeinrichtung deutlich beabstandet und getrennt von der Beschichtungsvorrichtung angeordnet worden ist. Mit Verkleinerung eines notwendigen Verfahrweges des beschichteten Werkstückes von der Beschichtungsvorrichtung zur Messeinrichtung erhöht sich nach einer Erkenntnis der Erfindung die Positionier- und damit Messungenauigkeit.The invention thus takes a different route in comparison with known systems in which, due to the risk of undesired deposits by the metal overspray in the coating device, the measuring device has been significantly spaced and arranged separately from the coating device. With reduction of a necessary travel of the coated workpiece from the coating device to the measuring device increases according to a finding of the invention, the positioning and thus measurement inaccuracy.

Eine bevorzugte Weiterbildung der Erfindung besteht darin, dass das Gehäuse eine Ladestation zum Zuführen und Abführen des Werkstückes aufweist, dass die Messeinrichtung in der Ladestation angeordnet ist und dass die Messeinrichtung zusätzlich zum Vermessen des Werkstücks vor dem Beschichten ausgebildet ist. Bei dieser Anordnungsvariante durchläuft das Werkstück also zweimal die Ladestation der Anlage, nämlich beim Zuführen und beim Abführen des Werkstücks. Bei der Anordnung der Messeinrichtung in der Ladestation kann die Messeinrichtung also eine doppelte Funktion erfüllen, nämlich das Vermessen des Werkstücks vor dem Beschichten und anschließend das Vermessen des Werkstücks mit der Beschichtung. Insbesondere bei einem Beschichten von Bohrungen in einem Werkstück kann so eine Vermessung durch Aufnahme der Bohrungskontur durch die Messeinrichtung mit besonders großer Genauigkeit erfolgen. Denn die Messeinrichtung erfasst die Oberfläche der unbeschichteten Bohrung und anschließend die Oberflächenkontur der beschichteten Bohrung. Durch einen entsprechenden Vergleich der Messergebnisse kann so eine besonders genaue Bestimmung der Schichtdicke und des Schichtdickenverlaufes ermittelt werden.A preferred development of the invention is that the housing has a loading station for feeding and discharging the workpiece, that the measuring device is arranged in the loading station and that the measuring device is additionally designed for measuring the workpiece before coating. In this arrangement variant, the workpiece thus passes through twice the charging station of the system, namely during feeding and during removal of the workpiece. In the arrangement of the measuring device in the charging station, the measuring device can thus fulfill a dual function, namely the measurement of the workpiece before coating and then measuring the workpiece with the coating. In particular, in the case of a coating of bores in a workpiece, a measurement by recording the bore contour by the measuring device can thus take place with particularly great accuracy. Because the measuring device detects the surface of the uncoated hole and then the surface contour of the coated bore. By a corresponding comparison of the measurement results, a particularly accurate determination of the layer thickness and the layer thickness profile can thus be determined.

Nach einer anderen Ausgestaltungsvariante der Erfindung ist es vorteilhaft, dass die Messeinrichtung einen verfahrbaren Messsensor aufweist, welcher zwischen einer Kalibrierstation und einer Werkstückaufnahme in der Ladestation verfahrbar ist. Die Messeinrichtung kann dabei insbesondere einen optischen Messsensor aufweisen, welcher vorzugsweise mit einer Lasereinrichtung zusammenarbeitet. Diese grundsätzlich bekannten Messeinrichtungen erlauben eine exakte Erfassung einer Oberflächenkontur. Durch eine entsprechende Justierung und Kalibrierung der Messeinrichtung kann zugleich ein Durchmesser einer Bohrung und insbesondere auch ein Durchmesserverlauf über die axiale Länge der Bohrung erfasst werden. Vorzugsweise verbleibt das Werkstück vom Zeitpunkt des Zuführens bis zum Abführen in der Anlage auf einer Werkstückaufnahme, insbesondere einer Werkstückhalterung oder einer Werkstückpalette, so dass eine Positionierung des Werkstückes mit hoher Wiederholgenauigkeit bei dem mehrmaligen Vermessen ermöglicht wird.According to another embodiment variant of the invention, it is advantageous that the measuring device has a movable measuring sensor, which can be moved between a calibration station and a workpiece holder in the loading station. The measuring device may in particular have an optical measuring sensor, which preferably cooperates with a laser device. These basically known measuring devices allow an exact detection of a surface contour. By a corresponding adjustment and calibration of the measuring device At the same time a diameter of a bore and in particular a diameter profile over the axial length of the bore can be detected. Preferably, the workpiece remains from the time of feeding to removal in the system on a workpiece holder, in particular a workpiece holder or a workpiece pallet, so that a positioning of the workpiece with high repeatability in the repeated measurement is possible.

Eine weitere vorteilhafte Ausführungsform der Erfindung besteht darin, dass die Beschichtungsvorrichtung in einer Bearbeitungsstation angeordnet ist, welche von der Ladestation getrennt ist, und dass eine Reinigungsstation zum Reinigen der Beschichtungslanze in der Bearbeitungsstation angeordnet ist. Durch eine Trennung der Bearbeitungsstation, in welcher der Beschichtungsvorgang mit dem MetallPlasmastrahl erfolgt, und der Ladestation, in welcher das Vermessen durchgeführt wird, insbesondere durch eine Trennwand, können das Beschichten und das Messen räumlich nahe, aber ohne unerwünschte Wechselwirkungen zueinander durchgeführt werden. Eine Verbesserung der Auftragsgenauigkeit wird nach einer erfindungsgemäßen Variante noch dadurch gesteigert, dass in der Bearbeitungsstation eine Reinigungsstation vorgesehen ist, mit welcher zu bestimmten Zeitpunkten die Beschichtungslanze von angelagerten Metallpartikeln gereinigt wird. Diese unerwünschten Anlagerungen ergeben sich durch den Metall-Overspray beim Beschichten in der Bearbeitungsstation.A further advantageous embodiment of the invention consists in that the coating device is arranged in a processing station, which is separated from the loading station, and that a cleaning station for cleaning the coating lance is arranged in the processing station. By separating the processing station, in which the coating process with the metal plasma jet takes place, and the charging station, in which the surveying is carried out, in particular by a partition wall, the coating and measuring can be carried out spatially close, but without undesirable interactions with each other. An improvement in the accuracy of the order is further increased according to a variant of the invention in that a cleaning station is provided in the processing station, with which at certain times the coating lance is cleaned of accumulated metal particles. These unwanted deposits result from the metal overspray during coating in the processing station.

Eine weitere Verbesserung kann noch dadurch erreicht werden, dass in der Bearbeitungsstation eine Prüfstation zum Prüfen des von der Beschichtungslanze erzeugten Metall-Plasmastrahls angeordnet ist. In dieser Prüfstation kann beispielsweise mittels einer Kamera das Strahlbild erfasst, vermessen und mit einem Soll-Strahlbild verglichen werden. Sofern Abweichungen in einem übermäßigen Umfang festgestellt werden, kann durch eine Steuerung eine Wartung, insbesondere eine Reinigung der Beschichtungslanze in der Reinigungsstation veranlasst werden. Auch können die Prüfergebnisse unmittelbar zur Steuerung der Beschichtungsvorrichtung und insbesondere zur Ausbildung des Metall-Plasmastrahls eingesetzt werden.A further improvement can still be achieved by arranging in the processing station a test station for testing the metal plasma jet generated by the coating lance. In this test station, the beam pattern can be detected, measured and compared with a desired beam pattern, for example, by means of a camera. If deviations are detected to an excessive extent, a maintenance, in particular a cleaning of the coating lance in the cleaning station can be initiated by a controller. The test results can also be used directly for controlling the coating apparatus and in particular for forming the metal plasma jet.

Eine weitere Verbesserung wird nach einer anderen Ausführungsvariante der Erfindung dadurch erreicht, dass eine Absaugeinrichtung vorgesehen ist, durch welche zum Absaugen von Luft von der Beschichtungsvorrichtung der Kalibrierstation, der Prüfstation und/oder der Reinigungsstation ausgebildet ist. Insbesondere in der Beschichtungsvorrichtung kann so Metall-Overspray während des Beschichtens mit der Umgebungsluft aus der Bearbeitungsstation abgeführt werden. Vorzugsweise ist die Anlage mit der Absaugeinrichtung so ausgebildet, dass in der Bearbeitungsstation mit der Beschichtungsvorrichtung gegenüber der Umgebung und insbesondere der Ladestation mit der Messeinrichtung ein gewisser Unterdruck eingestellt ist. Mit diesem Unterdruck kann einem Übertritt von Overspray von der Bearbeitungsstation in die Ladestation mit der Messeinrichtung entgegengewirkt werden. Dies verhindert eine Beeinträchtigung der Messeinrichtung durch unerwünschte Metallanlagerungen durch Overspray.A further improvement is achieved according to another embodiment of the invention in that a suction device is provided, through which for sucking air from the coating device of the calibration, the Test station and / or the cleaning station is formed. In particular in the coating apparatus, metal overspray can thus be removed from the processing station during the coating with the ambient air. Preferably, the plant with the suction device is designed so that in the processing station with the coating device relative to the environment and in particular the charging station with the measuring device, a certain negative pressure is set. With this negative pressure, a transfer of overspray from the processing station into the charging station with the measuring device can be counteracted. This prevents impairment of the measuring device by unwanted metal accumulation by overspray.

Ein weiterer positiver Einfluss auf die Messgenauigkeit der Anlage wird gemäß einer Weiterbildung der Erfindung dadurch erreicht, dass mindestens eine Werkstückaufnahme vorgesehen ist, in welcher ein Werkstück in einer definierten Lage aufgenommen und gespannt ist, und dass die Werkstückaufnahme zwischen der Ladestation und der Bearbeitungsstation verfahrbar ist. Das Werkstück befindet sich somit beim Fördern durch die Anlage durchgehend in einer Werkstückaufnahme. Hierdurch lassen die Messdaten besonders genaue Rückschlüsse auf die Art und Weise der Beschichtung zu, so dass diese entsprechend zur Steuerung der Beschichtungsvorrichtung beim Beschichten eingesetzt werden können.Another positive influence on the measurement accuracy of the system is achieved according to a development of the invention in that at least one workpiece holder is provided, in which a workpiece is received and tensioned in a defined position, and that the workpiece holder between the loading station and the processing station is movable , The workpiece is thus continuously in a workpiece holder when conveying through the system. As a result, the measurement data allow particularly accurate conclusions about the manner of the coating, so that they can be used according to the control of the coating device during coating.

Nach einer Ausführungsvariante der Erfindung ist es vorteilhaft, dass die Bearbeitungsstation und die Ladestation durch eine Trennwand voneinander getrennt sind und dass die Trennwand mindestens einen verschließbaren Durchgang aufweist. Durch die Trennwand, die das Gehäuse in zwei Bereiche unterteilt, werden die Bearbeitungsstation und die Ladestation hermetisch voneinander getrennt. Dies dient insbesondere dazu, einen Übertritt von Overspray aus der Bearbeitungsstation zu der Ladestation mit der Messeinrichtung und damit unerwünschte Anlagerungen von Metallpartikeln an der empfindlichen Messeinrichtung zu unterbinden. Für den Durchtritt des Werkstücks von der Ladestation in die Bearbeitungsstation ist mindestens ein Durchgang in der Trennwand vorgesehen, welcher verschließbar ist. Der Durchgang wird dabei jeweils nur für einen kurzen Augenblick zum Durchtritt des Werkstückes von der einen Station in die andere geöffnet.According to one embodiment of the invention, it is advantageous that the processing station and the charging station are separated by a partition wall and that the partition has at least one closable passage. The partition, which divides the housing into two sections, hermetically separates the processing station and the charging station. This serves in particular to prevent a transfer of overspray from the processing station to the charging station with the measuring device and thus unwanted deposits of metal particles on the sensitive measuring device. For the passage of the workpiece from the loading station in the processing station at least one passage in the partition wall is provided, which is closable. The passage is opened in each case only for a brief moment for the passage of the workpiece from one station to the other.

Dabei ist es nach einer erfindungsgemäßen Weiterbildung besonders bevorzugt, dass der Durchgang durch ein Verschlusselement verschlossen ist, welches zum Durchtritt des Werkstücks den Durchgang freigibt. Das Verschlusselement kann eine Tür und insbesondere eine verschiebbare oder verschwenkbare Verschlussplatte sein. Durch einen Stellmotor, einen Stellzylinder oder durch eine Verstellmechanik wird dabei das Verschlusselement in eine Freigabeposition verschoben, wenn das Werkstück den Durchgang erreicht. Nach Durchtritt des Werkstücks wird das Verschlusselement wieder in die Verschlussposition bewegt, in welcher der Durchgang dicht verschlossen ist.It is particularly preferred according to a development of the invention that the passage is closed by a closure element, which releases the passage for the passage of the workpiece. The closure element may be a door and in particular a displaceable or pivotable closure plate. By a servomotor, a control cylinder or by an adjustment mechanism while the closure element is moved to a release position when the workpiece reaches the passage. After passage of the workpiece, the closure element is moved back into the closed position in which the passage is sealed.

Ein besonders effizienter Betrieb der erfindungsgemäßen Anlage ergibt sich nach einer weiteren bevorzugten Ausführungsform dadurch, dass die mindestens eine Werkstückaufnahme mittels einer Fördereinrichtung verfahrbar ist, welche einen ringförmigen Umlaufweg aufweist. Die Fördereinrichtung kann dabei ein beliebiger Umlaufförderer sein, etwa ein Kettenförderer, ein Bandförderer oder eine ähnliche Fördereinrichtung mit endlos umlaufendem Förderelement.A particularly efficient operation of the system according to the invention results according to a further preferred embodiment in that the at least one workpiece holder can be moved by means of a conveyor which has an annular circulation path. The conveyor can be any circulation conveyor, such as a chain conveyor, a belt conveyor or a similar conveyor with endless circulating conveyor element.

Besonders vorteilhaft ist es dabei, dass die Fördereinrichtung als ein Drehtisch ausgebildet ist, welcher horizontal verfahrbar angeordnet ist. Der Drehtisch kann dabei Platz für vorzugsweise zwei oder auch mehr Werkstückaufnahmen aufweisen.It is particularly advantageous that the conveyor is designed as a turntable, which is arranged horizontally movable. The turntable can have space for preferably two or more workpiece holders.

Insbesondere im Fall eines Umlaufförderers ist es nach einer Weiterbildung der Erfindung zweckmäßig, dass in der Trennwand zwei Durchgänge mit jeweils einem Verschlusselement vorgesehen sind. Ein Durchgang dient dabei zum Durchtritt des Werkstückes von der Ladestation in die Bearbeitungsstation, während der zweite Durchgang in umgekehrter Weise zum Durchtritt des Werkstückes aus der Bearbeitungsstation in die Ladestation dient.In particular, in the case of a circulation conveyor, it is expedient according to a development of the invention that two passages, each with a closure element, are provided in the dividing wall. A passage serves for the passage of the workpiece from the loading station into the processing station, while the second passage serves in a reverse manner for the passage of the workpiece from the processing station into the loading station.

Eine weitere bevorzugte Ausbildungsvariante der Erfindung besteht darin, dass die Fördereinrichtung horizontal umlaufend ausgebildet ist und dass die Werkstückaufnahme an der Fördereinrichtung verstellbar, insbesondere verschwenkbar um eine horizontale Verschwenkachse, gelagert ist. Dabei ist die Werkstückaufnahme, in welcher das Werkstück gehalten und gespannt ist, in einer Grundausrichtung horizontal angeordnet. Bei der Bearbeitung von Motorblöcken etwa mit einer V- oder W-Anordnung der Zylinderbohrungen können die Werkstücke jeweils so um eine horizontale Verschwenkachse verschwenkt und verstellt werden, dass die jeweils zu bearbeitenden Zylinderbohrungen vertikal ausgerichtet sind. Dies erlaubt sowohl ein exaktes Beschichten durch die vertikal verfahrbare Beschichtungslanze als auch ein exaktes Vermessen durch die Messeinrichtung, bei welcher der Messsensor ebenfalls vertikal verfahrbar gelagert ist.A further preferred embodiment of the invention is that the conveyor is formed horizontally encircling and that the workpiece holder on the conveyor adjustable, in particular pivotable about a horizontal pivot axis, is mounted. In this case, the workpiece holder, in which the workpiece is held and clamped, arranged horizontally in a basic orientation. When machining engine blocks with, for example, a V or W arrangement of the cylinder bores, the workpieces can each have a horizontal position Swiveling pivot axis and be adjusted that the respective cylinder bores to be machined are aligned vertically. This allows both a precise coating by the vertically movable coating lance and an accurate measurement by the measuring device, in which the measuring sensor is also mounted vertically movable.

Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass das Bilden der Beschichtung und ein Messen der Beschichtungsdicke integrierte in einer Anlage durchgeführt werden, welche vorausgehend beschrieben ist. Mit diesem erfindungsgemäßen Verfahren lassen sich die zuvor beschriebenen Vorteile beim Beschichten eines Werkstückes, insbesondere beim Beschichten von Bohrungen in einem Werkstück, erzielen.The method according to the invention is characterized in that the formation of the coating and the measurement of the coating thickness are carried out integrated in a system which has been described above. With this method according to the invention, the advantages described above can be achieved when coating a workpiece, in particular when coating bores in a workpiece.

Die Erfindung ist vorzugsweise zum Beschichten von Bohrungen in Werkstücken, insbesondere von Zylinderbohrungen in Motorblöcken vorgesehen. Andere Anwendungen sind darüber hinaus möglich.The invention is preferably provided for coating bores in workpieces, in particular cylinder bores in engine blocks. Other applications are also possible.

Die Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispieles weiter beschrieben, welches schematisch in den beigefügten Zeichnungen dargestellt ist. In den Zeichnungen zeigen:

Fig. 1:
eine schematische Seitenansicht einer erfindungsgemäßen Anlage;
Fig. 2:
eine um 90° geklappte Seitenansicht der Anlage von Fig. 1 in stark schematisierter Form;
Fig. 3:
eine Draufsicht der Anlage gemäß den Figuren 1 und 2;
Fig. 4:
eine schematische perspektivische Ansicht der Anlage gemäß den Figuren 1 bis 3, jedoch ohne Gehäuse.
The invention will be further described below with reference to a preferred embodiment, which is shown schematically in the accompanying drawings. In the drawings show:
Fig. 1:
a schematic side view of a system according to the invention;
Fig. 2:
a 90 ° folded side view of the plant of Fig. 1 in a highly schematized form;
3:
a plan view of the system according to the Figures 1 and 2 ;
4:
a schematic perspective view of the system according to the figures 1 to 3, but without housing.

Eine erfindungsgemäße Anlage 10 zur metallischen Beschichtung von Bohrungen 3 in einem Werkstück 1 ist in Figuren 1 bis 4 gezeigt. Das Werkstück 1 ist im dargestellten Ausführungsbeispiel ein Motorblock mit 12 Bohrungen 3, welche als Zylinderbohrungen in zwei Sechserreihen in V-Form in dem Werkstück 1 angeordnet sind.An inventive system 10 for the metallic coating of holes 3 in a workpiece 1 is in FIGS. 1 to 4 shown. The workpiece 1 is in the illustrated embodiment, an engine block with 12 holes 3, which are arranged as cylinder bores in two rows of six in V-shape in the workpiece 1.

Die Anlage 10 weist ein Maschinenbett 11 auf, auf welchem ein Gehäuse 13 angeordnet ist. Das kastenförmige Gehäuse 13 umschließt eine Ladestation 12 und eine Bearbeitungsstation 14 mit einer Beschichtungsvorrichtung 29.The system 10 has a machine bed 11 on which a housing 13 is arranged. The box-shaped housing 13 encloses a loading station 12 and a processing station 14 with a coating device 29.

Auf dem Maschinenbett 11 ist zur Aufnahme eines Werkstücks 1 ein Grundrahmen 16 einer Fördereinrichtung 20 angeordnet, welche im dargestellten Ausführungsbeispiel als ein Drehtisch 22 ausgebildet ist. Der um eine vertikale Drehachse drehbar angetriebene horizontale Drehtisch 22 weist zwei gegenüberliegende Werkstückaufnahmen 23 auf, in welchen jeweils ein plattenförmiges Palettenmodul 21 mit je einem Werkstück 1 aufnehmbar ist. Über eine Schwenkeinrichtung 26 kann das Palettenmodul 21 mit dem Werkstück 1 gegenüber der Horizontalen verschwenkt werden, so dass die Bohrungen 3 in dem Werkstück 1 vertikal zur Durchführung einer metallischen Beschichtung angeordnet werden können.On the machine bed 11 for receiving a workpiece 1, a base frame 16 of a conveyor 20 is arranged, which is formed in the illustrated embodiment as a turntable 22. The rotatable about a vertical axis of rotation driven horizontal turntable 22 has two opposite workpiece holders 23, in each of which a plate-shaped pallet module 21, each with a workpiece 1 is receivable. Via a pivoting device 26, the pallet module 21 can be pivoted with the workpiece 1 relative to the horizontal, so that the holes 3 in the workpiece 1 can be arranged vertically to carry out a metallic coating.

Das Werkstück 1 wird an der Ladestation 12 von einer nicht dargestellten Zufördereinrichtung aufgenommen. Das Gehäuse 13 weist im Bereich der Ladestation 12 eine nicht dargestellte Öffnung mit einer Tür auf. Weiterhin kann im Bereich der Ladestation 12 eine Vermessung des Werkstücks 1 mit einer Messeinrichtung 52 erfolgen. Anschließend wird der Drehtisch 22 um 180° gedreht, wobei das Werkstück 1 von der Ladestation 12 zu der gegenüberliegenden Bearbeitungsstation 14 gefördert wird. Die Bearbeitungsstation 14 ist von der Ladestation 12 über eine Trennwand 24 getrennt. In Fig. 2 ist die Trennwand 24 lediglich teilweise im unteren Bereich dargestellt. Die Trennwand 24 erstreckt sich jedoch durch den gesamten Raum des Gehäuses 13, so dass die Bearbeitungsstation 14 von der Ladestation 12 abgeschottet ist. Zum Durchgang der Werkstücke 1 von der Ladestation 12 zur Bearbeitungsstation 14 und wieder zurück sind zwei Durchgänge 25 vorgesehen. Die Durchgänge 25 sind jeweils über ein verschiebbares Verschlusselement 27 verschlossen, welches zum Durchtritt des Werkstückes 1 geöffnet und anschließend wieder geschlossen werden kann.The workpiece 1 is received at the loading station 12 by a feed device, not shown. The housing 13 has in the region of the charging station 12 an opening, not shown, with a door. Furthermore, in the region of the charging station 12, a measurement of the workpiece 1 can take place with a measuring device 52. Subsequently, the turntable 22 is rotated by 180 °, wherein the workpiece 1 is conveyed from the loading station 12 to the opposite processing station 14. The processing station 14 is separated from the charging station 12 via a partition wall 24. In Fig. 2 the partition 24 is only partially shown in the lower area. However, the partition 24 extends through the entire space of the housing 13, so that the processing station 14 is sealed off from the charging station 12. To pass the workpieces 1 from the loading station 12 to the processing station 14 and back again two passages 25 are provided. The passages 25 are each closed by a sliding closure element 27, which can be opened for the passage of the workpiece 1 and then closed again.

In der Bearbeitungsstation 14 wird das Werkstück 1 mit der Schwenkeinrichtung 26 um eine horizontale Schwenkachse verschwenkt, wobei jeweils eine Reihe von Bohrungen 3 vertikal ausgerichtet wird, wie aus den Figuren 1 bis 4 ersichtlich ist.In the processing station 14, the workpiece 1 is pivoted with the pivoting device 26 about a horizontal pivot axis, wherein in each case a series of holes 3 is aligned vertically, as shown in FIGS FIGS. 1 to 4 is apparent.

Zum Aufbringen der metallischen Beschichtung ist eine Beschichtungsvorrichtung 29 mit einer stangenförmigen Beschichtungslanze 30 vorgesehen, welche an ihrem unteren Ende mindestens eine Austrittsöffnung 32 für einen Metall-Plasmastrahl aufweist. Der Metall-Plasmastrahl wird in bekannter Weise durch einen Plasmagenerator mit einer Kathode und einer metallischen Anode erzeugt. Über eine entsprechend hohe elektrische Spannung wird zwischen der Kathode und der Anode ein Lichtbogen gebildet, durch welchen die metallische Anode aufgeschmolzen wird. Die metallische Anode ist als ein zuführbarer Draht ausgebildet, so dass stets ausreichend Material vorliegt, um mit den aufgeschmolzenen metallischen Partikeln einen MetallPlasmastrahl zu bilden. Als Quelle der metallischen Partikel kann anstelle eines Drahtes auch eine Zuführung von Pulver vorgesehen werden. Über eine Gasdüseneinrichtung wird ein Gasstrom erzeugt, welcher mit Überschallgeschwindigkeit aus der Austrittsöffnung 32 am unteren Ende der Beschichtungslanze 30 etwa horizontal austritt. Dabei wird die Beschichtungslanze 30 mit der Austrittsöffnung 32 in die zu beschichtende Bohrung 3 im Werkstück 1 eingefahren. Die Beschichtungsvorrichtung 29 weist weiter eine hülsenförmige Absaugglocke auf, welche die Beschichtungslanze 30 umgibt, jedoch in den Figuren 1 bis 4 aus Gründen der Übersichtlichkeit nicht dargestellt ist.For applying the metallic coating, a coating device 29 with a rod-shaped coating lance 30 is provided, which has at its lower end at least one outlet opening 32 for a metal plasma jet. The metal plasma jet is generated in a known manner by a plasma generator with a cathode and a metallic anode. By means of a correspondingly high electrical voltage, an arc is formed between the cathode and the anode, by means of which the metallic anode is melted. The metallic anode is designed as a feedable wire, so that there is always sufficient material to form a metal plasma jet with the molten metal particles. As a source of the metallic particles, a supply of powder may be provided instead of a wire. Via a gas nozzle device, a gas stream is generated, which emerges at supersonic speed from the outlet opening 32 at the lower end of the coating lance 30 approximately horizontally. In this case, the coating lance 30 is retracted with the outlet opening 32 in the bore 3 to be coated in the workpiece 1. The coating device 29 further comprises a sleeve-shaped suction bell, which surrounds the coating lance 30, but in the FIGS. 1 to 4 is not shown for reasons of clarity.

Zum Verfahren der Beschichtungslanze 30 ist eine Portaleinrichtung 40 mit zwei parallelen ersten Verfahrachsen 41 vorgesehen. Auf den beiden ersten Verfahrachsen 41 ist ein rahmenartiger erster Verfahrschlitten 47 horizontal verfahrbar gelagert. Der erste Verfahrschlitten 47 weist selbst zwei lineare, horizontale zweite Verfahrachsen 42 auf, welche parallel zueinander und senkrecht zu den ersten Verfahrachsen 41 angeordnet sind.To process the coating lance 30, a portal device 40 with two parallel first track axes 41 is provided. On the two first track axes 41, a frame-like first carriage 47 is mounted horizontally movable. The first traversing carriage 47 itself has two linear, horizontal second traverse axes 42, which are arranged parallel to one another and perpendicular to the first traverse axes 41.

Entlang den beiden zweiten Verfahrachsen 42 ist ein balkenförmiger zweiter Verfahrschlitten 48 horizontal verfahrbar angeordnet. Der zweite Verfahrschlitten 48 weist selbst eine einzelne vertikale dritte Verfahrachse 43 auf. Entlang dieser dritten Verfahrachse 43 ist ein Aufnahmeschlitten 45 vertikal verfahrbar gelagert. Auf dem Aufnahmeschlitten 45 ist die Beschichtungslanze 30 drehbar gehaltert.Along the two second track axes 42, a beam-shaped second carriage 48 is arranged horizontally movable. The second carriage 48 itself has a single vertical third travel axis 43. Along this third travel axis 43, a receiving carriage 45 is mounted vertically movable. On the receiving carriage 45, the coating lance 30 is rotatably supported.

Nachdem ein Werkstück 1 in der Bearbeitungsstation 14 positioniert ist, wird die Beschichtungslanze 30 der Beschichtungsvorrichtung 29 in eine erste zu beschichtende Bohrung 3 in dem Werkstück 1 eingefahren. Die kontinuierlich betriebene Beschichtungslanze 30 erzeugt dabei einen Metall-Plasmastrahl, welcher mit Überschallgeschwindigkeit auf eine Bohrungswand der Bohrung 3 auftrifft. Durch das Drehen der Beschichtungslanze 30 und das axiale Verfahren in vertikaler Richtung erfolgt eine gleichmäßige definierte metallische Beschichtung mit einer Dicke von beispielsweise 10 µm bis 300 µm auf die Bohrungswand.After a workpiece 1 is positioned in the processing station 14, the coating lance 30 of the coating device 29 is retracted into a first bore 3 to be coated in the workpiece 1. The continuously operated coating lance 30 thereby generates a metal plasma jet which impinges on a bore wall of the bore 3 at supersonic speed. By rotating the coating lance 30 and the axial process in the vertical direction, a uniform defined metallic coating with a thickness of for example 10 .mu.m to 300 .mu.m is applied to the bore wall.

Nach dem Herausfahren der Beschichtungslanze 30 aus der ersten beschichteten Bohrung 3 wird der Metall-Plasmastrahl unmittelbar bei Austritt aus der Bohrung 3 auf eine Aufprallfläche einer Aufnahmeeinheit in einer nicht dargestellten Absaugglocke gerichtet, welche zusammen mit der Beschichtungslanze 30 an dem Aufnahmeschlitten 45 gehaltert ist. Die Aufnahmeeinheit nimmt die Partikel des MetallPlasmastrahles auf und wird gemeinsam mit der Beschichtungslanze 30 zu der nächsten zu beschichtenden Bohrung 3 verfahren. Dann wird die metallische Beschichtung an dieser zweiten Bohrung 3 wiederholt, wobei sich eine entsprechende Beschichtung der weiteren Bohrung 3 in einer Reihe des Werkstücks 1 anschließt. Anschließend kann das Werkstück 1 über die Schwenkeinrichtung 26 um eine horizontale Achse verschwenkt werden, so dass die zweite Reihe des Motorblocks zur Bearbeitung in der vertikalen Position angeordnet ist. Sodann kann sich ein Beschichten auch dieser sechs Bohrungen 3 im motorblockartigen Werkstück 1 anschließen.After moving out of the coating lance 30 from the first coated bore 3 of the metal plasma jet is directed directly on exit from the bore 3 on an impact surface of a receiving unit in a suction bell, not shown, which is supported together with the coating lance 30 on the receiving carriage 45. The receiving unit receives the particles of the metal plasma jet and is moved together with the coating lance 30 to the next hole to be coated 3. Then, the metallic coating is repeated at this second bore 3, wherein a corresponding coating of the further bore 3 in a row of the workpiece 1 is connected. Subsequently, the workpiece 1 can be pivoted about the pivoting device 26 about a horizontal axis, so that the second row of the engine block is arranged for processing in the vertical position. Then, a coating of these six holes 3 in the engine block-like workpiece 1 can join.

Nach Beendigung der Beschichtung wird die Beschichtungslanze 30 mit der Portaleinrichtung 40 rückgefahren und das fertige beschichtete Werkstück 1 kann unter gleichzeitiger Zuführung eines neuen zu bearbeitenden Werkstückes 1 in die Ladestation 12 durch den rechten Durchgang 25 rückgefördert werden. Dabei wird das Verschlusselement 27 an dem Durchgang 25 geöffnet. Gleichzeitig wird mit der Drehbewegung des Drehtisches 22 ein neues Werkstück 1 von der Ladestation 12 in die Bearbeitungsstation 14 durch den geöffneten linken Durchgang 25 gefördert.After completion of the coating, the coating lance 30 is retracted with the portal device 40 and the finished coated workpiece 1 can be fed back with the simultaneous feed of a new workpiece to be machined 1 in the charging station 12 through the right passage 25. In this case, the closure element 27 is opened at the passage 25. At the same time, a new workpiece 1 is conveyed from the loading station 12 into the processing station 14 through the opened left passage 25 with the rotary movement of the turntable 22.

Über einen Handlingsroboter 50 mit einer Messeinrichtung 52 kann die Schichtdicke und Kontur der aufgebrachten Beschichtung vermessen werden. Mit der Messeinrichtung 52 können auch die noch unbeschichteten Bohrungen 3 eines neu zugeführten Werkstückes 1 vorab vermessen werden, so dass eine noch genauere Prüfung der durchgeführten Beschichtung durch einen Vergleich der Messdaten möglich ist. Das beschichtete Werkstück 1 kann dann in der Ladestation 12 aus der Werkstückaufnahme 23 des Drehtisches 22 entnommen werden. Danach kann ein neues Werkstück 1 in die Werkstückaufnahme 23 der Fördereinrichtung 20 eingesetzt werden. Somit kann bei der erfindungsgemäßen Anlage 10 das Be- und Entladen sowie ein Vermessen parallel zur Bearbeitung eines Werkstückes 1 in der Bearbeitungsstation 14 und somit neutral zur Maschinenhauptzeit erfolgen. Dies ermöglicht eine effiziente Maschinennutzung.About a handling robot 50 with a measuring device 52, the layer thickness and contour of the applied coating can be measured. With the measuring device 52, the still uncoated holes 3 of a newly supplied workpiece 1 can be measured in advance, so that even more accurate testing of the performed coating by comparing the measurement data is possible. The coated workpiece 1 can then in the loading station 12 from the workpiece holder 23 of the turntable 22 are removed. Thereafter, a new workpiece 1 in the workpiece holder 23 of the conveyor 20 can be used. Thus, in the system 10 according to the invention, the loading and unloading as well as a measuring parallel to the machining of a workpiece 1 in the processing station 14 and thus made neutral to the machine main time. This allows efficient machine use.

Mit der Portaleinrichtung 40 kann die Beschichtungslanze 30 in bestimmten zeitlichen Abständen zu einer Prüfstation 54 zum Überprüfen des Strahlbildes des MetallPlasmastrahles oder zu einer Reinigungsstation 60 verfahren werden.With the portal device 40, the coating lance 30 can be moved at certain time intervals to a test station 54 for checking the jet pattern of the metal plasma jet or to a cleaning station 60.

Die Messeinrichtung 52 weist einen Laser auf, mit welchem durch Einfahren der Messeinrichtung 52 vertikal in eine Bohrung 3 des Werkstücks 1 über den Handlingsroboter 50 der Konturenverlauf und der Durchmesser der Bohrung 3 über die axiale Länge der Bohrung 43 erfasst werden kann. Durch einen Vergleich der Messdaten der Bohrung 3 vor und nach der Beschichtung kann so durch eine Steuerung der Anlage 10 die erfolgte Beschichtung hinsichtlich dem Verlauf der Schichtdicken und der Oberflächenkontur exakt ermittelt werden. Anhand eines Vergleiches mit vorgegebenen Sollwerten kann so durch die Steuerung der Anlage 10 entschieden werden, ob eine korrekte Beschichtung erfolgt ist oder das Werkstück 1 einer Nachbearbeitung zugeführt werden muss. Zudem kann die Steuerung anhand der ermittelten Messwerte Einstellparameter der Beschichtungsvorrichtung 29, insbesondere Parameter zur Einstellung des Metall-Plasmastrahles oder der Bewegungsdaten der Beschichtungslanze 30 einstellen und verändern, um rechtzeitig Fehlentwicklungen bei der Beschichtung nachfolgender Werkstücke 1 entgegenzuwirken.The measuring device 52 has a laser, with which can be detected by retracting the measuring device 52 vertically into a bore 3 of the workpiece 1 on the handling robot 50, the contour shape and the diameter of the bore 3 over the axial length of the bore 43. By comparing the measurement data of the bore 3 before and after the coating can be determined exactly by a control of the system 10, the resulting coating with respect to the course of the layer thicknesses and the surface contour. On the basis of a comparison with predetermined nominal values, it can thus be decided by the control of the system 10 whether a correct coating has taken place or the workpiece 1 has to be fed to a post-processing. In addition, based on the measured values determined, the controller can set and change setting parameters of the coating device 29, in particular parameters for adjusting the metal plasma jet or the movement data of the coating lance 30, in order to counteract undesirable developments in the coating of subsequent workpieces 1 in good time.

Claims (14)

Anlage zur metallischen Beschichtung eines Werkstücks (1) mit einer Beschichtungsvorrichtung (29), welche eine verfahrbare Beschichtungslanze (30) aufweist, durch welche ein Metall-Plasmastrahl zum Bilden einer Beschichtung aus Metallpartikeln erzeugbar ist,
dadurch gekennzeichnet,
dass die Beschichtungsvorrichtung (29) mit der Beschichtungslanze (30) und eine Messeinrichtung (52) zur Messung der Beschichtungsdicke integriert in der Anlage (10) ausgebildet sind und
dass die Beschichtungsvorrichtung (29) mit der Beschichtungslanze (30) und die Messeinrichtung (52) von einem Gehäuse (13) umschlossen sind.Plant for the metallic coating of a workpiece (1) with a coating device (29), which has a movable coating lance (30), by means of which a metal plasma jet for forming a coating of metal particles can be produced,
characterized,
in that the coating device (29) with the coating lance (30) and a measuring device (52) for measuring the coating thickness are integrated in the system (10) and
in that the coating device (29) with the coating lance (30) and the measuring device (52) are enclosed by a housing (13). Anlage nach Anspruch 1,
dadurch gekennzeichnet,
dass das Gehäuse (13) eine Ladestation (12) zum Zuführen und Abführen des Werkstückes (1) aufweist,
dass die Messeinrichtung (52) in der Ladestation (12) angeordnet ist und dass die Messeinrichtung (52) zusätzlich zum Vermessen des Werkstücks (1) vordem Beschichten ausgebildet ist.Plant according to claim 1,
characterized,
that the housing (13) has a loading station (12) for supplying and removing the workpiece (1),
in that the measuring device (52) is arranged in the loading station (12) and in that the measuring device (52) is additionally designed to measure the workpiece (1) before coating. Anlage nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Messeinrichtung (52) einen verfahrbaren Messsensor (53) aufweist, welcher zwischen einer Kalibrierstation (56) und einer Werkstückaufnahme (23) in der Ladestation (12) verfahrbar ist.Plant according to claim 1 or 2,
characterized,
in that the measuring device (52) has a movable measuring sensor (53) which can be moved between a calibration station (56) and a workpiece holder (23) in the loading station (12). Anlage nach einem der Ansprüche 2 oder 3,
dadurch gekennzeichnet,
dass die Beschichtungsvorrichtung (29) in einer Bearbeitungsstation (14) angeordnet ist, welche von der Ladestation (12) getrennt ist, und
dass eine Reinigungsstation (60) zum Reinigen der Beschichtungslanze (30) in der Bearbeitungsstation (14) angeordnet ist.Installation according to one of claims 2 or 3,
characterized,
that the coating device (29) is arranged in a processing station (14), which is separated from the loading station (12), and
in that a cleaning station (60) for cleaning the coating lance (30) is arranged in the processing station (14). Anlage nach Anspruch 4,
dadurch gekennzeichnet,
dass in der Bearbeitungsstation (14) eine Prüfstation (54) zum Prüfen des von der Beschichtungslanze (30) erzeugten Metall-Plasmastrahls angeordnet ist.Plant according to claim 4,
characterized,
in that a test station (54) for testing the metal plasma jet produced by the coating lance (30) is arranged in the processing station (14). Anlage nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass eine Absaugeinrichtung vorgesehen ist, welche zum Absaugen von Luft von der Beschichtungsvorrichtung (29), der Kalibrierstation (56), der Prüfstation und/oder der Reinigungsstation (60) ausgebildet ist.Installation according to one of claims 1 to 5,
characterized,
that a suction device is provided which is adapted for sucking air from the coating device (29), the calibration station (56), the inspection station and / or the cleaning station (60). Anlage nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass mindestens eine Werkstückaufnahme (23) vorgesehen ist, in welcher ein Werkstück (1) in einer definierten Lage aufgenommen und gespannt ist, und dass die Werkstückaufnahme (23) zwischen der Ladestation (12) und der Bearbeitungsstation (14) verfahrbar ist.Plant according to one of claims 1 to 6,
characterized,
in that at least one workpiece holder (23) is provided, in which a workpiece (1) is received and clamped in a defined position, and that the workpiece holder (23) is movable between the loading station (12) and the processing station (14). Anlage nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
dass die Bearbeitungsstation (14) und die Ladestation (12) durch eine Trennwand (24) voneinander getrennt sind und
dass die Trennwand (24) mindestens einen verschließbaren Durchgang (25) aufweist.Plant according to one of claims 1 to 7,
characterized,
that the processing station (14) and the charging station (12) by a partition (24) are separated from each other and
in that the dividing wall (24) has at least one closable passage (25). Anlage nach Anspruch 8,
dadurch gekennzeichnet,
dass der Durchgang (25) durch ein Verschlusselement (27) verschlossen ist, welches zum Durchtritt des Werkstücks (1) den Durchgang (25) freigibt.Plant according to claim 8,
characterized,
in that the passage (25) is closed by a closure element (27) which releases the passage (25) for the passage of the workpiece (1). Anlage nach einem der Ansprüche 7 bis 9,
dadurch gekennzeichnet,
dass die mindestens eine Werkstückaufnahme (23) mittels einer Fördereinrichtung (20) verfahrbar ist, welche einen ringförmigen Umlaufweg aufweist.Plant according to one of claims 7 to 9,
characterized,
in that the at least one workpiece holder (23) can be moved by means of a conveying device (20) which has an annular circulation path. Anlage nach Anspruch 10,
dadurch gekennzeichnet,
dass die Fördereinrichtung (20) als ein Drehtisch (22) ausgebildet ist, welcher horizontal verfahrbar angeordnet ist.Plant according to claim 10,
characterized,
in that the conveying device (20) is designed as a turntable (22) which is arranged to be horizontally movable. Anlage nach einem der Ansprüche 8 bis 11,
dadurch gekennzeichnet,
dass in der Trennwand (24) zwei Durchgänge (25) mit jeweils einem Verschlusselement (27) vorgesehen sind.Plant according to one of claims 8 to 11,
characterized,
in that two passages (25) each having a closure element (27) are provided in the dividing wall (24). Anlage nach einem der Ansprüche 10 bis 12,
dadurch gekennzeichnet,
dass die Fördereinrichtung (20) horizontal umlaufend ausgebildet ist und dass die Werkstückaufnahme (23) an der Fördereinrichtung (20) verstellbar, insbesondere verschwenkbar um eine horizontale Verschwenkachse, gelagert ist.Plant according to one of claims 10 to 12,
characterized,
that the conveying device (20) is designed to run horizontally and that the workpiece holder (23) is mounted on the conveying device (20) so as to be adjustable, in particular pivotable about a horizontal pivot axis. Verfahren zur metallischen Beschichtung eines Werkstücks (1) mit einer verfahrbaren Beschichtungslanze (30), durch welche ein Metall-Plasmastrahl erzeugt wird, wobei eine metallische Beschichtung aus Metallpartikeln an dem Werkstück (1) gebildet wird,
dadurch gekennzeichnet,
dass das Bilden der Beschichtung und ein Messen der Beschichtungsdicke integriert in einer Anlage (10) durchgeführt werden, welche nach einem der Ansprüche 1 bis 13 ausgebildet ist.Method for the metallic coating of a workpiece (1) with a movable coating lance (30), by which a metal plasma jet is generated, wherein a metallic coating of metal particles is formed on the workpiece (1),
characterized,
in that the formation of the coating and the measurement of the coating thickness are carried out integrally in a plant (10) which is designed according to one of Claims 1 to 13.
EP15151718.2A 2015-01-20 2015-01-20 Installation and method for producing a metallic coating on a workpiece Active EP3048181B1 (en)

Priority Applications (10)

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PL15151718T PL3048181T3 (en) 2015-01-20 2015-01-20 Installation and method for producing a metallic coating on a workpiece
EP15151718.2A EP3048181B1 (en) 2015-01-20 2015-01-20 Installation and method for producing a metallic coating on a workpiece
HUE15151718A HUE041844T2 (en) 2015-01-20 2015-01-20 Installation and method for producing a metallic coating on a workpiece
ES15151718T ES2715875T3 (en) 2015-01-20 2015-01-20 Installation and procedure for the metal coating of a workpiece
CN201680006299.9A CN107208245B (en) 2015-01-20 2016-01-15 The device and method that metal for workpiece coats
KR1020177019149A KR102054697B1 (en) 2015-01-20 2016-01-15 Installation and method for the metallic coating of a workpiece
CA2970066A CA2970066C (en) 2015-01-20 2016-01-15 Installation and method for the metallic coating of a workpiece
PCT/EP2016/050745 WO2016116364A1 (en) 2015-01-20 2016-01-15 Installation and method for the metallic coating of a workpiece
JP2017537400A JP6629865B2 (en) 2015-01-20 2016-01-15 Equipment and methods for metallizing workpieces
US15/543,831 US10287666B2 (en) 2015-01-20 2016-01-15 Installation and method for the metallic coating of a workpiece

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KR102054697B1 (en) 2020-01-22
CN107208245A (en) 2017-09-26

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