EP3687702A1 - Rotational unit having a hollow-shaft motor - Google Patents

Rotational unit having a hollow-shaft motor

Info

Publication number
EP3687702A1
EP3687702A1 EP18779321.1A EP18779321A EP3687702A1 EP 3687702 A1 EP3687702 A1 EP 3687702A1 EP 18779321 A EP18779321 A EP 18779321A EP 3687702 A1 EP3687702 A1 EP 3687702A1
Authority
EP
European Patent Office
Prior art keywords
coating
lance
tool holder
rotation unit
shaft motor
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
EP18779321.1A
Other languages
German (de)
French (fr)
Other versions
EP3687702B1 (en
Inventor
Stefan Richter
Mike Hirschfeldt
Dr. Klaus Stefan KLIMEK
Philipp Marian Müller
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP3687702A1 publication Critical patent/EP3687702A1/en
Application granted granted Critical
Publication of EP3687702B1 publication Critical patent/EP3687702B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06—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
    • 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
    • B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/025—Rotational joints
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/004—Cylinder liners
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/10—Arrangements for collecting, re-using or eliminating excess spraying material the excess material being particulate
    • 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
    • B05B7/20—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 by flame or combustion
    • B05B7/201—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 by flame or combustion downstream of the nozzle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F2001/008—Stress problems, especially related to thermal stress
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F2200/00—Manufacturing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/42—Plasma torches using an arc with provisions for introducing materials into the plasma, e.g. powder, liquid

Definitions

  • the invention relates to a rotary unit for a coating lance device according to the preamble of claim 1 and a coating lance device according to the preamble of claim 6 for thermally coating an interior, preferably a cylinder bore of a cylinder crankcase.
  • Cylinder run require a friction-reduced coating, especially if the cylinder heads are also made of aluminum.
  • An established coating process is thermal coating, for example plasma spraying. Positive effects of this
  • Coating are in addition to an increase in robustness of the cylinder bore a significantly reduced friction in the piston group with the result of a reduction in the
  • thermal coating processes are powder plasma spraying,
  • Wire spraying processes such as plasma transfer wire arc (PTWA) and arc wire spraying (LDS) or HVOF spraying (high speed flame spraying). Due to the cramped conditions when coating a cylinder bore of a cylinder bore rotating coating lances are used, which are axially inserted into the cylinder bore.
  • PTWA plasma transfer wire arc
  • LDS arc wire spraying
  • HVOF spraying high speed flame spraying
  • Such a coating lance is known for example from WO 2016/015 922 A1, which deals with a device and a method for metallic coating and a receiving unit for this device, for example on page 2, first to third paragraph.
  • the invention has for its object to reduce the moving mass of the entire coating lance device in a rotation unit of the type mentioned and to increase the speed vibration-free, because overlapping vibrations strongly influence the layer result and the life of the track used, for example, a robot or portal, greatly reduce. Furthermore, it is the task to reduce the acquisition costs, operating costs and manufacturing costs.
  • the rotary drive is designed as a hollow shaft motor coaxial with the axis of rotation of the tool holder, and wherein the tool holder and the coating material supply and the process media supply are arranged centrally to the hollow shaft motor.
  • Coating lance device for thermal coating of an interior, preferably a cylinder bore of a cylinder crankcase, proposed, wherein the
  • Rotation unit has at least the following components:
  • a tool holder for a coating lance having a rotation axis
  • a rotary drive for rotating the tool holder about the axis of rotation; a coating material supply for supplying the coating lance with a
  • Coating material a process media supply for providing process media for coating an interior space by means of a recorded in the tool holder
  • the rotation unit is mainly characterized in that the rotary drive is designed as a hollow shaft motor coaxial with the axis of rotation of the tool holder, wherein the tool holder and the coating material supply and the
  • Process media supply are arranged centrally to the hollow shaft motor.
  • the proposed rotation unit has, in contrast to the previously known
  • Embodiments a hollow shaft motor as a rotary drive. This has the advantage that all media (gases, cooling water, coating material and power) can be supplied centrally. Any resulting vibrations are therefore solely dependent on the balancing quality of the centrally arranged and co-rotating components.
  • Tool holder is added, allows with lower actuator forces. Alternatively or additionally, it is possible to position and deliver the rotation unit with less expenditure of time and / or fewer vibrations, which are induced as a result of mass moment of inertia. In addition, the induced vibrations in the alignment system are reduced due to the reduction of vibrations in the operation of the rotation unit.
  • the tool holder is designed as known from the prior art for receiving a coating lance.
  • the tool holder is rotated by the rotary drive about its axis of rotation.
  • the tool holder also has corresponding
  • Media outlets which correspond to the media inlets of the respective coating lance.
  • the media outlets of the tool holder are with a
  • Power supply for the coating lance set up are arranged centrally to the hollow shaft motor and rotate with the tool holder, or they are and are connected via a corresponding bearing the respective outlet.
  • the coating material by a central coating material supply the process media provided by a radially outside, preferably surrounding surrounding, arranged process media supply, which are fixed to the tool holder, so mitrotierend connected.
  • the hollow shaft motor is arranged at least over an axial portion of the process media supply and acts on one with the
  • Process media feeds are freely selectable. However, it is beneficial to the
  • the structure is significantly less complex and has a significantly smaller number of individual parts, so that the acquisition costs for such a rotary unit are reduced.
  • the mass of such a rotary unit is significantly reduced relative to a belt driven rotary unit, so that the moving mass for positioning the rotary unit relative to a workpiece or to be coated
  • a slip ring transformer for transmitting electric power current to the coating lance is arranged radially outside the hollow shaft motor.
  • a slip ring transformer for supplying the burner of the coating lance with electric power current.
  • the hollow shaft motor is preferably designed brushless.
  • a suction device for removing abrasive wear of the slip ring transmitter, and preferably at least one air nozzle is further provided, by means of which a discharge of the abrasive abrasion can be supported.
  • a suction device in order to dissipate targeted grinding abrasion in a targeted manner.
  • at least one is preferred Air nozzle provided, but which does not supply more volume than is discharged via the suction device.
  • the tool holder is designed to accommodate different coating lances and preferably has a zero mark for the repeatable alignment of a respective coating lance and particularly preferably comprises a reading device for reading out a
  • the tool holder has a standardized connection or several adapters for different connections of different coating lance types.
  • the tool holder is equipped with a reading device, preferably an electronic reading device, and the coating lance has a readable identification unit, for example an RFID chip.
  • a reading device preferably an electronic reading device
  • the coating lance has a readable identification unit, for example an RFID chip.
  • Identification unit can be taken information about the coating lance and the coating lance can be correctly positioned and operated. Alternatively, in the operating system by means of which the rotation unit is controlled, access to stored data is made possible so that the coating lance can be operated correctly according to its type and / or its individual (historical) properties. Also, this identification unit or the associated stored information in the operating instructions for the worker for the correct installation of this coating lance in the
  • Spray distance and the immersion depth and other parameters can be achieved.
  • the tool data can be assigned to the machined components.
  • a history can be generated from which the operating hours can be stored reliably in order to gain experience as to when future preventive maintenance must be carried out.
  • the coating material can be provided in powder form, and for coupling in coating material, at least one gas-tight and encapsulated rolling bearing is provided, the rolling bearing preferably being formed at least partially from ceramic.
  • the coating material is provided in powder form, that is to say for a powder plasma spray.
  • a powder plasma spray In previous rotation units, sealing Teflon caps or air-purged ceramic discs were used for this purpose.
  • a gas-tight and encapsulated rolling bearing whereby the coupling is wear.
  • Ceramic rolling elements and / or ceramic treads are used, so that a lubrication-free, yet low-wear and low-wear versions with a long service life is possible.
  • a sealed and sealed rolling bearing is known as Rotary Union Solutions by DSTI (Dynamic Sealing Technologies, Inc.), 13829 Jay Street NW, Andover, MN 55304, in the United States of America, under the SPS Series product line ( See https://www.dsti.com/industries, document: "DSTI-SPS-Series-Catalog.pdf, published May 20, 2015).
  • a coating lance device for thermally coating an interior space, preferably a cylinder bore of a
  • Cylinder crankcase proposed, wherein the coating lance device comprises at least the following components:
  • At least one Hubaktor for axial and / or lateral positioning of
  • the coating lance device has a rotation unit, which is characterized by a simple structure and a low mass and low rotational oscillations in operation. This results in lower holding forces and positioning forces. In addition, significantly longer service lives are achieved by lower vibration loads for the positioning unit.
  • the housing may be configured to hold the rotation unit on a lift actuator his.
  • a process box is preferably provided, which is set up in such a way that it forms a receiving space for the coating lance in the immersed state, that is to say when a coating jet is still generated, but no coating of a workpiece is to be undertaken.
  • the coating lance device has a rotation unit, which is characterized by a simple structure and a low mass and low rotational oscillations in operation. This results in lower holding forces and positioning forces. In addition, significantly longer service lives are achieved by lower vibration loads for the positioning unit.
  • the housing may be configured to hold the rotation unit on a lift actuator his.
  • a process box is preferably provided, which is set up in such a way that it forms
  • Rotation unit and the coating lance which alone are moved horizontally or vertically or not at all.
  • FIG. 1 in a schematic representation of a rotary unit with a
  • FIG. 2 shows a perspective view of a rotation unit without coating lance
  • FIG. 3 shows a perspective sectional view of a rotation unit with coating lance
  • FIG. 4 shows a perspective view of a coating lance device.
  • a rotary unit 10 is shown schematically, in which case the compactness of the structure of the rotary unit 10 with the rotary drive 13, here designed as a hollow shaft motor 13, can be seen well.
  • a slipring assembly 16 is provided, by means of which power flow is transferable to the coating lance 30.
  • the coating material supply 11 is centrally provided, in which (according to this representation from above) coating material for the coating lance 30 can be fed.
  • the coating material supply 1 1 surrounding and radially within the hollow shaft motor 13 a, a process media supply 12 is arranged, for example, for process gas and / or cooling water.
  • the tool holder 14 is provided below the Schleifringübertragers 16 is coaxial and rotatable from the hollow shaft motor 13 a.
  • the tool holder 14 is followed by an (optional) reading device 20, wherein here also the (optional) zero-point marking 19 is arranged on the reading device 20.
  • the introduced coating lance 30 has a corresponding zero point 32.
  • the zero point 32 is aligned with the zero mark 19. Furthermore, the
  • Coating lance 30 advantageously an identification unit 31, for example an RFID chip, so that the coating lance 30 used by means of the reading device 20th is automatically recognizable.
  • the coating lance 30 is shown here aligned with the cylinder axis 45 and was from the interior to be coated 40, here a
  • Cylinder bore 41 of a cylinder crankcase 42 reappeared and has there applied to the cylinder surface 43, the desired coating 44.
  • FIG. 2 and Fig. 3 a possible embodiment of a rotation unit 10 is shown, wherein in Fig. 2, the rotation unit 10 in a perspective view without coating lance 30 and in Fig. 3, the rotation unit 10 in a perspective sectional view
  • Coating lance 30 is shown. Here is a housing 22 and stationary
  • Coating material preferably in powder or wire form, a second
  • Supply connection 26 for example, process gas, and a fourth
  • the housing 22 serves primarily to keep ready a required
  • the entire rotation unit 10 is connected to this housing 22 with a portal or a robot.
  • a suction device 17 is provided on the housing, of which the suction port is indicated in Fig. 2, and wherein the suction device 17 (optionally) by an air nozzle 18 (see FIG. 3) is supported.
  • the component which comprises the supply terminals 24 to 26 and the housing 22 are stationary, and thus are not rotated about the axis of rotation 15. Alone the centrally arranged components including the
  • Tool holder 14 and the coating lance 30 are rotatable about the axis of rotation 15.
  • the first supply connection 24 has a (known) sealed and encapsulated rolling bearing 21, for example in accordance with the SPS Series from DSTI.
  • the housing 22 has a fastening connection 28, by means of which the rotation unit 10 can be moved horizontally and vertically in a coating lance device 100 (cf. FIG. 4).
  • the coating at the bottom of the coating lance 30 shows the coating nozzle 33 immersed in an interior 40 (cf. FIG. 1) and schematically a coating jet 34.
  • FIG. 1 the coating lance device 100
  • Coating lance 30 in the tool holder 14 is a lance connector 35 in close proximity to the (optional) reading device 20, for example, an RFI D reader, shown.
  • FIG. 4 shows a simplified coating lance device 100, in which two rotary units 10 each having a coating lance 30 by means of a lifting actuator 23 in a gantry along a horizontal axis and a vertical axis
  • Workpiece table 46 for example, for a cylinder crankcase 42 (see FIG. 1), can be fed.
  • rotation unit 10 for example, for a cylinder crankcase 42 (see FIG. 1)
  • Mounting connection 28 (see FIG. 3) of the housing 22.
  • the rotation unit proposed here allows a low-vibration or

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Nozzles (AREA)

Abstract

The aim of the invention is to provide a rotational unit (10) for a coating-lance device (100) for thermal coating of an interior (40). This aim is achieved, according to, the invention, by designing the rotational drive (13) in the form of a hollow-shaft motor (13a) so as to be coaxial with the rotational axis (15) of the tool holder (14), and the tool holder (14) and the coating-material feed (11) and the process-media feed (12) being arranged so as to be central with respect to the hollow-shaft motor (13a). In order to also provide a coating-lance device (100) for thermal coating of an interior (40), the invention proposes providing a rotational unit (10) of this type; at least one lifting actuator (23) for axial and/or lateral positioning of the rotational unit (10) relative to a an interior (40) to be coated; and stationary supply connections (24, 25, 26) for supplying current to the coating lance (30), and for the coating-material feed (11) and for the process-media feed (12).

Description

Beschreibung  description
ROTATIONSEINHEIT MIT HOHLWELLENMOTOR ROTARY UNIT WITH HOLLOW MOTOR
Die Erfindung betrifft eine Rotationseinheit für eine Beschichtungslanzeneinrichtung gemäß dem Oberbegriff des Anspruchs 1 und eine Beschichtungslanzeneinrichtung gemäß dem Oberbegriff des Anspruchs 6 zum thermischen Beschichten eines Innenraums, bevorzugt einer Zylinderbohrung eines Zylinderkurbelgehäuses. The invention relates to a rotary unit for a coating lance device according to the preamble of claim 1 and a coating lance device according to the preamble of claim 6 for thermally coating an interior, preferably a cylinder bore of a cylinder crankcase.
In der Fertigung von Zylinderkurbelgehäusen wird mehr und mehr auf Leichtbau gesetzt. Dazu werden Aluminium-Zylinderkurbelgehäuse eingesetzt, die allerdings im Bereich der In the production of cylinder crankcases, more and more lightweight construction is used. These aluminum cylinder crankcases are used, however, in the field of
Zylinderlaufbahn eine reibungsreduzierte Beschichtung benötigen, insbesondere wenn die Zylinderköpfe ebenfalls aus Aluminium gefertigt sind. Ein etabliertes Beschichtungsverfahren ist das thermische Beschichten, zum Beispiel Plasmaspritzen. Positive Effekte dieser Cylinder run require a friction-reduced coating, especially if the cylinder heads are also made of aluminum. An established coating process is thermal coating, for example plasma spraying. Positive effects of this
Beschichtung sind neben einer Robustheitssteigerung der Zylinderlaufbahn eine deutlich reduzierte Reibung im Bereich der Kolbengruppe mit der Folge einer Senkung des Coating are in addition to an increase in robustness of the cylinder bore a significantly reduced friction in the piston group with the result of a reduction in the
Kohlenstoffdioxidausstoßes und ein guter Schutz gegen korrosive Medien. Carbon dioxide emissions and good protection against corrosive media.
Gängige thermische Beschichtungsverfahren sind das Pulver-Plasmaspritzen, Common thermal coating processes are powder plasma spraying,
Drahtspritzverfahren wie Plasma-Transfer-Wire-Arc (PTWA) und Lichtbogen-Draht-Spritzen (LDS) oder HVOF-Spritzen (Hochgeschwindigkeitsflammspritzen). Aufgrund der beengten Verhältnisse beim Beschichten einer Zylinderlaufbahn einer Zylinderbohrung werden rotierende Beschichtungslanzen eingesetzt, welche axial in die Zylinderbohrung einführbar sind. Wire spraying processes such as plasma transfer wire arc (PTWA) and arc wire spraying (LDS) or HVOF spraying (high speed flame spraying). Due to the cramped conditions when coating a cylinder bore of a cylinder bore rotating coating lances are used, which are axially inserted into the cylinder bore.
Eine solche Beschichtungslanze ist beispielsweise aus WO 2016/015 922 A1 , die sich mit einer Vorrichtung und einem Verfahren zur metallischen Beschichtung sowie einer Aufnahmeeinheit für diese Vorrichtung befasst, zum Beispiel auf Seite 2, erster bis dritter Absatz, bekannt. Such a coating lance is known for example from WO 2016/015 922 A1, which deals with a device and a method for metallic coating and a receiving unit for this device, for example on page 2, first to third paragraph.
Derzeit gibt es keine Rotationseinheit für eine Beschichtungslanzeneinrichtung zum At present there is no rotary unit for a coating lance device for
thermischen Beschichten eines Innenraums mit Drehdurchführung für Gas, Kühlwasser und Spritzgut, welche den industriellen Ansprüchen der Großserienfertigung von Thermal coating of an interior with rotary union for gas, cooling water and Spraying, which meet the industrial demands of mass production of
Zylinderkurbelgehäusen entspricht. Cylinder crankcases corresponds.
Aktuell wird eine Rotationseinheit von der Firma Oerlikon Metco angeboten. Hierbei ist der Rotationsantrieb als Riementrieb ausgebildet. Maximale Drehzahlen liegen bei derzeit 250 Umdrehungen pro Minute bis bei neueren Entwicklungen maximal 800 U/min. Die Drehzahl ist dabei infolge der Riemenspannung und daraus folgender Schwingungen begrenzt. Currently, a rotation unit is offered by the company Oerlikon Metco. Here, the rotary drive is designed as a belt drive. Maximum speeds are currently 250 revolutions per minute to newer developments maximum 800 rev / min. The speed is limited due to the belt tension and consequent vibrations.
Der Erfindung liegt die Aufgabe zugrunde, bei einer Rotationseinheit der eingangs genannten Art die bewegte Masse der gesamten Beschichtungslanzeneinrichtung zu reduzieren und die Drehzahl schwingungsfrei zu steigern, weil überlagernde Schwingungen das Schichtergebnis stark beeinflussen und die Standzeit der eingesetzten Verfahreinheit, zum Beispiel eines Roboters oder Portals, stark reduzieren. Weiterhin ist es die Aufgabe, die Anschaffungskosten, Betriebskosten sowie Herstellungskosten zu senken. The invention has for its object to reduce the moving mass of the entire coating lance device in a rotation unit of the type mentioned and to increase the speed vibration-free, because overlapping vibrations strongly influence the layer result and the life of the track used, for example, a robot or portal, greatly reduce. Furthermore, it is the task to reduce the acquisition costs, operating costs and manufacturing costs.
Diese Aufgabe wird durch die im Anspruch 1 angegebenen Merkmale gelöst, nämlich indem der Rotationsantrieb als Hohlwellenmotor koaxial zu der Rotationsachse der Werkzeugaufnahme ausgeführt ist, und wobei die Werkzeugaufnahme und die Beschichtungsmaterialzuführung sowie die Prozessmedienzuführung zentral zu dem Hohlwellenmotor angeordnet sind. This object is achieved by the features specified in claim 1, namely by the rotary drive is designed as a hollow shaft motor coaxial with the axis of rotation of the tool holder, and wherein the tool holder and the coating material supply and the process media supply are arranged centrally to the hollow shaft motor.
Weiterhin wird mittels der im Anspruch 6 angegebenen Merkmale eine Reduzierung der mitbewegten Masse erreicht, nämlich, indem eine Rotationseinheit der hier vorgeschlagenen Art eingesetzt wird. Furthermore, a reduction of the co-moving mass is achieved by means of the features specified in claim 6, namely, by a rotary unit of the type proposed here is used.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet. Advantageous embodiments of the invention are characterized in the subclaims.
Gemäß einer ersten Ausführungsform der Erfindung wird eine Rotationseinheit für eine According to a first embodiment of the invention, a rotation unit for a
Beschichtungslanzeneinrichtung zum thermischen Beschichten eines Innenraums, bevorzugt einer Zylinderbohrung eines Zylinderkurbelgehäuses, vorgeschlagen, wobei die Coating lance device for thermal coating of an interior, preferably a cylinder bore of a cylinder crankcase, proposed, wherein the
Rotationseinheit zumindest die folgenden Komponenten aufweist: Rotation unit has at least the following components:
eine Werkzeugaufnahme für eine Beschichtungslanze mit einer Rotationsachse;  a tool holder for a coating lance having a rotation axis;
ein Rotationsantrieb zum Rotieren der Werkzeugaufnahme um die Rotationsachse; eine Beschichtungsmaterialzuführung zum Versorgen der Beschichtungslanze mit einem a rotary drive for rotating the tool holder about the axis of rotation; a coating material supply for supplying the coating lance with a
Beschichtungsmaterial; eine Prozessmedienzuführung zum Bereitstellen von Prozessmedien zum Beschichten eines Innenraums mittels einer in der Werkzeugaufnahme aufgenommenen Coating material; a process media supply for providing process media for coating an interior space by means of a recorded in the tool holder
Beschichtungslanze.  Coating lance.
Die Rotationseinheit ist vor allem dadurch gekennzeichnet, dass der Rotationsantrieb als Hohlwellenmotor koaxial zu der Rotationsachse der Werkzeugaufnahme ausgeführt ist, wobei die Werkzeugaufnahme und die Beschichtungsmaterialzuführung sowie der The rotation unit is mainly characterized in that the rotary drive is designed as a hollow shaft motor coaxial with the axis of rotation of the tool holder, wherein the tool holder and the coating material supply and the
Prozessmedienzuführung zentral zu dem Hohlwellenmotor angeordnet sind. Process media supply are arranged centrally to the hollow shaft motor.
Die vorgeschlagene Rotationseinheit weist im Unterschied zu den vorbekannten The proposed rotation unit has, in contrast to the previously known
Ausführungsformen einen Hohlwellenmotor als Rotationsantrieb auf. Dies hat den Vorteil, dass sämtliche Medien (Gase, Kühlwasser, Beschichtungsmaterial und Leistungsstrom) zentral zugeführt werden können. Etwaige entstehende Schwingungen sind daher allein von der Auswuchtungsgüte der zentral angeordneten und mitrotiernden Komponenten abhängig. Embodiments a hollow shaft motor as a rotary drive. This has the advantage that all media (gases, cooling water, coating material and power) can be supplied centrally. Any resulting vibrations are therefore solely dependent on the balancing quality of the centrally arranged and co-rotating components.
Folglich sind sehr hohe Drehzahlen, zum Beispiel 150 Umdrehungen pro Minute bis Consequently, very high speeds, for example 150 revolutions per minute to
900 Umdrehungen pro Minute, oder sogar bis zu 1000 Umdrehungen pro Minute, erreichbar. Hierdurch wird die Herstellungszeit verkürzt. Darüber hinaus ist der gesamte Aufbau der Rotationseinheit dadurch mit einer geringeren Masse ausführbar. Hierdurch ist ein Positionieren der Rotationseinheit beziehungsweise der Beschichtungslanze, welche in der 900 revolutions per minute, or even up to 1000 revolutions per minute. As a result, the production time is shortened. In addition, the entire structure of the rotation unit is thereby executable with a smaller mass. This is a positioning of the rotation unit or the coating lance, which in the
Werkzeugaufnahme aufgenommen ist, mit geringeren Aktorkräften ermöglicht. Alternativ oder ergänzend ist ein Positionieren und Zustellen der Rotationseinheit mit geringerem Zeitaufwand und/oder weniger Schwingungen, welche infolge von Massenträgheitsmomenten induziert werden, ermöglicht. Zudem sind die induzierten Schwingungen in das Ausrichtsystem aufgrund der Verringerung der Schwingungen beim Betrieb der Rotationseinheit verringert. Tool holder is added, allows with lower actuator forces. Alternatively or additionally, it is possible to position and deliver the rotation unit with less expenditure of time and / or fewer vibrations, which are induced as a result of mass moment of inertia. In addition, the induced vibrations in the alignment system are reduced due to the reduction of vibrations in the operation of the rotation unit.
Die Werkzeugaufnahme ist wie aus dem Stand der Technik bekannt zur Aufnahme einer Beschichtungslanze eingerichtet. Die Werkzeugaufnahme wird von dem Rotationsantrieb um ihre Rotationsachse rotiert. Die Werkzeugaufnahme weist zudem entsprechende The tool holder is designed as known from the prior art for receiving a coating lance. The tool holder is rotated by the rotary drive about its axis of rotation. The tool holder also has corresponding
Medienauslässe auf, welche mit den Medieneinlässen der jeweiligen Beschichtungslanze korrespondieren. Die Medienauslässe der Werkzeugaufnahme sind mit einer Media outlets, which correspond to the media inlets of the respective coating lance. The media outlets of the tool holder are with a
Beschichtungsmaterialzuführung und einer Prozessmedienzuführung sowie einer Coating material supply and a process media supply and a
Leistungsstromzuführung für die Beschichtungslanze eingerichtet. Diese sind zentral zu dem Hohlwellenmotor angeordnet und rotieren mit der Werkzeugaufnahme, oder diese stehen und sind über eine entsprechende Lagerung dem jeweiligen Auslass verbunden. Gemäß einer besonders bevorzugten Ausführungsform wird beispielsweise das Beschichtungsmaterial durch eine zentrale Beschichtungsmaterialzuführung, die Prozessmedien durch eine radial außerhalb, bevorzugt umlaufend umgebend, angeordnete Prozessmedienzuführung bereitgestellt, welche mit der Werkzeugaufnahme fest, also mitrotierend, verbunden sind. Diese Komponenten sind alle koaxial zueinander angeordnet. Der Hohlwellenmotor ist dabei zumindest über einen axialen Abschnitt der Prozessmedienzuführung angeordnet und wirkt auf einen mit der Power supply for the coating lance set up. These are arranged centrally to the hollow shaft motor and rotate with the tool holder, or they are and are connected via a corresponding bearing the respective outlet. According to one Particularly preferred embodiment, for example, the coating material by a central coating material supply, the process media provided by a radially outside, preferably surrounding surrounding, arranged process media supply, which are fixed to the tool holder, so mitrotierend connected. These components are all arranged coaxially with each other. The hollow shaft motor is arranged at least over an axial portion of the process media supply and acts on one with the
Prozessmedienzuführung fest verbundenen Rotor, bevorzugt den Anker, ein. Die koaxiale Anordnungsreihenfolge von Beschichtungsmaterialzuführung und den Process fluid supply firmly connected rotor, preferably the anchor, a. The coaxial arrangement order of coating material supply and the
Prozessmedienzuführungen ist frei wählbar. Allerdings ist es vorteilhaft, die Process media feeds are freely selectable. However, it is beneficial to the
Beschichtungsmaterialführung zentral anzuordnen, weil das Beschichtungsmaterial der angeschlossenen Beschichtungslanze so ohne großen Aufwand zentral zuführbar ist. To arrange coating material guide centrally, because the coating material of the connected coating lance can be fed centrally without much effort.
Der Aufbau ist insgesamt deutlich weniger komplex und weist eine deutlich geringere Anzahl an Einzelteilen auf, sodass die Anschaffungskosten für eine solche Rotationseinheit gesenkt sind. Außerdem ist die Masse einer solchen Rotationseinheit gegenüber einer Rotationseinheit mit Riemenantrieb deutlich reduziert, sodass die mit bewegte Masse für das Positionieren der Rotationseinheit relativ zu einem Werkstück beziehungsweise dem zu beschichtenden Overall, the structure is significantly less complex and has a significantly smaller number of individual parts, so that the acquisition costs for such a rotary unit are reduced. In addition, the mass of such a rotary unit is significantly reduced relative to a belt driven rotary unit, so that the moving mass for positioning the rotary unit relative to a workpiece or to be coated
Innenraum reduziert ist. Interior is reduced.
In einer vorteilhaften Ausführungsform der Rotationseinheit ist ein Schleifringübertrager zum Übertragen von elektrischem Leistungsstrom auf die Beschichtungslanze radial außerhalb des Hohlwellenmotors angeordnet. In an advantageous embodiment of the rotation unit, a slip ring transformer for transmitting electric power current to the coating lance is arranged radially outside the hollow shaft motor.
In dieser Ausführungsform ist ein Schleifringübertrager zur Versorgung des Brenners der Beschichtungslanze mit elektrischem Leistungsstrom vorgesehen. Der Hohlwellenmotor ist bevorzugt bürstenlos ausgeführt. In this embodiment, a slip ring transformer for supplying the burner of the coating lance with electric power current is provided. The hollow shaft motor is preferably designed brushless.
In einer vorteilhaften Ausführungsform der Rotationseinheit ist eine Absaugeinrichtung zum Abführen von Schleifabrieb des Schleifringübertragers vorgesehen, und bevorzugt ist weiterhin zumindest eine Luftdüse vorgesehen, mittels welcher ein Abführen des Schleifabriebs unterstützbar ist. In an advantageous embodiment of the rotary unit, a suction device is provided for removing abrasive wear of the slip ring transmitter, and preferably at least one air nozzle is further provided, by means of which a discharge of the abrasive abrasion can be supported.
Bei dieser Ausführungsform wird vorgeschlagen eine Absaugeinrichtung vorzusehen, um anfallenden Schleifabrieb zielgerichtet abzuführen. Hierbei ist bevorzugt zumindest eine Luftdüse vorgesehen, welche aber nicht mehr Volumen zuführt, als über die Absaugeinrichtung abgeführt wird. Hierdurch ist eine Abschirmung anfallenden Schleifabriebs von dem In this embodiment, it is proposed to provide a suction device in order to dissipate targeted grinding abrasion in a targeted manner. Here, at least one is preferred Air nozzle provided, but which does not supply more volume than is discharged via the suction device. As a result, a Abschirmung resulting abrasive wear of the
thermischen Beschichtungsprozess ausreichend sichergestellt. Nach dem Stand der Technik werden Universalkupplungen eingesetzt wobei Stromübertrager starken Abrieb erzeugen, welcher mit Druckluft abgeblasen wird und somit zu Verunreinigungen in der Beschichtung führen kann. Durch die Ablagerung von leitenden Stäuben besteht die Möglichkeit eines Lichtbogenüberschlags mit der Gefahr der Zerstörung der Rotationseinheit. sufficiently ensured thermal coating process. According to the state of the art, universal couplings are used, whereby current transformers produce strong abrasion, which is blown off with compressed air and can thus lead to contamination in the coating. By the deposition of conductive dusts there is the possibility of arcing with the risk of destruction of the rotating unit.
In einer vorteilhaften Ausführungsform der Rotationseinheit ist die Werkzeugaufnahme zum Aufnehmen unterschiedlicher Beschichtungslanzen eingerichtet und weist bevorzugt eine Nullpunktmarkierung zum wiederholgenauen Ausrichten einer jeweiligen Beschichtungslanze auf und umfasst besonders bevorzugt eine Leseeinrichtung zum Auslesen einer In an advantageous embodiment of the rotation unit, the tool holder is designed to accommodate different coating lances and preferably has a zero mark for the repeatable alignment of a respective coating lance and particularly preferably comprises a reading device for reading out a
Identifikationsinformation der jeweils aufgenommenen Beschichtungslanze. Identification information of each recorded coating lance.
Hier wird nun vorgeschlagen, eine Nullpunktmarkierung vorzusehen, sodass unterschiedlichste Beschichtungslanzen leicht erkennbar und überprüfbar korrekt eingesetzt werden können. Besonders bevorzugt weist die Werkzeugaufnahme einen genormten Anschluss oder mehrere Adapter für verschiedene Anschlüsse verschiedener Beschichtungslanzentypen auf. Here it is now proposed to provide a zero mark, so that a wide variety of coating lances can be easily recognized and verifiable used correctly. Particularly preferably, the tool holder has a standardized connection or several adapters for different connections of different coating lance types.
Ganz besonders bevorzugt ist die Werkzeugaufnahme mit einer Leseeinrichtung ausgestattet,, bevorzugt einer elektronischen Leseeinrichtung, und die Beschichtungslanze weist eine auslesbare Identifikationseinheit auf, beispielsweise einen RFID-Chip. Dieser Most preferably, the tool holder is equipped with a reading device, preferably an electronic reading device, and the coating lance has a readable identification unit, for example an RFID chip. This
Identifikationseinheit können Informationen zu der Beschichtungslanze entnommen werden und die Beschichtungslanze kann dadurch korrekt positioniert und betrieben werden. Alternativ ist im Betriebssystem mittels welchem die Rotationseinheit gesteuert wird, ein Zugriff auf gespeicherte Daten ermöglicht, sodass die Beschichtungslanze entsprechend ihrem Typ und/oder ihrer individuellen (historischen) Eigenschaften korrekt betreibbar ist. Auch können diese Identifikationseinheit oder die zugeordnet gespeicherten Informationen im Betriebssystem Anleitungen für den Werker zur korrekten Montage dieser Beschichtungslanze in der Identification unit can be taken information about the coating lance and the coating lance can be correctly positioned and operated. Alternatively, in the operating system by means of which the rotation unit is controlled, access to stored data is made possible so that the coating lance can be operated correctly according to its type and / or its individual (historical) properties. Also, this identification unit or the associated stored information in the operating instructions for the worker for the correct installation of this coating lance in the
Werkzeugaufnahme enthalten. Hierdurch kann eine verbesserte Genauigkeit des Tool holder included. This can improve the accuracy of the
Spritzabstandes und der Eintauchtiefe und weitere Parameter erreicht werden. Zur Spray distance and the immersion depth and other parameters can be achieved. to
Qualitätssicherung können die Werkzeugdaten den bearbeiteten Bauteilen zugeordnet werden. Außerdem ist eine Historie erzeugbar, aus der die Betriebsstunden zuverlässig gespeichert werden können, um Erfahrungen zu sammeln, wann zukünftig vorbeugende Instandhaltung durchgeführt werden muss. In einer vorteilhaften Ausführungsform der Rotationseinheit ist das Beschichtungsmaterial pulverförmig bereitstellbar, und zum Einkoppeln von Beschichtungsmaterial ist zumindest ein gasdichtes und gekapseltes Wälzlager vorgesehen, wobei bevorzugt das Wälzlager zumindest teilweise aus Keramik gebildet ist. Quality assurance, the tool data can be assigned to the machined components. In addition, a history can be generated from which the operating hours can be stored reliably in order to gain experience as to when future preventive maintenance must be carried out. In an advantageous embodiment of the rotation unit, the coating material can be provided in powder form, and for coupling in coating material, at least one gas-tight and encapsulated rolling bearing is provided, the rolling bearing preferably being formed at least partially from ceramic.
In einer besonders bevorzugten Ausführungsform wird das Beschichtungsmaterial pulverförmig, also für einen Pulver-Plasmaspritzen, bereitgestellt. In bisherigen Rotationseinheiten wurden hierzu dichtende Teflonhütchen oder luftgespülte Keramikscheiben eingesetzt. Solche In a particularly preferred embodiment, the coating material is provided in powder form, that is to say for a powder plasma spray. In previous rotation units, sealing Teflon caps or air-purged ceramic discs were used for this purpose. Such
Vorrichtungen weisen geringe Standzeiten auf. Hier wird nun vorgeschlagen, ein gasdichtes und gekapseltes Wälzlager einzusetzen, wodurch die Ankopplung verschleißarm ist. Besonders bevorzugt werden Keramikwälzkörper und/oder Keramiklaufflächen eingesetzt, sodass eine schmierfreie und dennoch verschleißarme und abriebarme Ausführungen mit hoher Standzeit ermöglicht ist. Ein gasdichtes und gekapseltes Wälzlager ist beispielsweise als Rotationseinheit (Rotary Union Solutions) von der Firma DSTI (Dynamic Sealing Technologies, Inc.), 13829 Jay Street NW, Andover, MN 55304, in den Vereinigten Staaten von Amerika unter der Produktreihe SPS Series bekannt (vergleiche https://www.dsti.com/industries, Dokument:„DSTI-SPS-Series- Catalog.pdf, veröffentlicht im 20. Mai 2015). Devices have low lifetimes. Here it is now proposed to use a gas-tight and encapsulated rolling bearing, whereby the coupling is wear. Particularly preferably ceramic rolling elements and / or ceramic treads are used, so that a lubrication-free, yet low-wear and low-wear versions with a long service life is possible. For example, a sealed and sealed rolling bearing is known as Rotary Union Solutions by DSTI (Dynamic Sealing Technologies, Inc.), 13829 Jay Street NW, Andover, MN 55304, in the United States of America, under the SPS Series product line ( See https://www.dsti.com/industries, document: "DSTI-SPS-Series-Catalog.pdf, published May 20, 2015).
Gemäß einem weiteren Aspekt der Erfindung wird eine Beschichtungslanzeneinrichtung zum thermischen Beschichten eines Innenraums, bevorzugt einer Zylinderbohrung eines According to a further aspect of the invention, a coating lance device for thermally coating an interior space, preferably a cylinder bore of a
Zylinderkurbelgehäuses, vorgeschlagen, wobei die Beschichtungslanzeneinrichtung zumindest die folgenden Komponenten aufweist: Cylinder crankcase proposed, wherein the coating lance device comprises at least the following components:
zumindest eine Rotationseinheit nach einer Ausführungsform gemäß der obigen  at least one rotation unit according to an embodiment according to the above
Beschreibung;  Description;
zumindest einen Hubaktor zum axialen und/oder lateralen Positionieren der  at least one Hubaktor for axial and / or lateral positioning of
Rotationseinheit relativ zu einem zu beschichtenden Innenraum; und  Rotation unit relative to an interior to be coated; and
stationäre Versorgungsanschlüsse für eine Stromzufuhr zu dem Hohlwellenmotor und die Beschichtungslanze, sowie für die Beschichtungsmaterialzuführung und für die stationary supply connections for a power supply to the hollow shaft motor and the coating lance, and for the coating material supply and for the
Prozessmedienzuführung. Process media supply.
Die Beschichtungslanzeneinrichtung weist eine Rotationseinheit auf, welche sich durch einen einfachen Aufbau und eine geringe Masse und geringe rotationsbedingte Schwingungen im Betrieb kennzeichnet. Daraus folgen geringere Haltekräfte und Positionierkräfte. Zudem werden deutlich höhere Standzeiten durch geringere Schwingungsbelastungen für die Positioniereinheit erreicht. Das Gehäuse kann zum Halten der Rotationseinheit an einem Hubaktor eingerichtet sein. Darüber hinaus ist bevorzugt eine Prozessbox vorgesehen, welche derart eingerichtet ist, dass sie einen Aufnahmeraum für die Beschichtungslanze im ausgetauchten Zustand bildet, also wenn weiterhin ein Beschichtungsstrahl erzeugt wird, aber keine Beschichtung eines Werkstücks vorgenommen werden soll. Darüber hinaus weist die The coating lance device has a rotation unit, which is characterized by a simple structure and a low mass and low rotational oscillations in operation. This results in lower holding forces and positioning forces. In addition, significantly longer service lives are achieved by lower vibration loads for the positioning unit. The housing may be configured to hold the rotation unit on a lift actuator his. In addition, a process box is preferably provided, which is set up in such a way that it forms a receiving space for the coating lance in the immersed state, that is to say when a coating jet is still generated, but no coating of a workpiece is to be undertaken. In addition, the
Beschichtungsleistungseinrichtung die entsprechenden Anschlüsse zum Betreiben der Coating power device, the corresponding terminals for operating the
Rotationseinheit und der Beschichtungslanze auf, wobei diese allein horizontal oder vertikal oder gar nicht bewegt werden. Rotation unit and the coating lance, which alone are moved horizontally or vertically or not at all.
Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnung näher erläutert. Es zeigen Embodiments of the invention are explained below with reference to the drawing. Show it
Fig. 1 in einer schematischen Darstellung eine Rotationseinheit mit einem Fig. 1 in a schematic representation of a rotary unit with a
Zylinderkurbelgehäuse,  Cylinder crankcase,
Fig. 2 in einer perspektivischen Ansicht eine Rotationseinheit ohne Beschichtungslanze, Fig. 3 in einer perspektivischen Schnittansicht eine Rotationseinheit mit Beschichtungslanze, und 2 shows a perspective view of a rotation unit without coating lance, FIG. 3 shows a perspective sectional view of a rotation unit with coating lance, and FIG
Fig. 4 in einer perspektivischen Ansicht eine Beschichtungslanzeneinrichtung.  4 shows a perspective view of a coating lance device.
In Fig. 1 ist eine Rotationseinheit 10 schematisch dargestellt, wobei hier die Kompaktheit des Aufbaus der Rotationseinheit 10 mit dem Rotationsantrieb 13, hier als Hohlwellenmotor 13a ausgeführt, gut zu erkennen ist. Radial ganz außen ist ein Schleifringübertrager 16 vorgesehen, mittels welchem Leistungsstrom aufdie Beschichtungslanze 30 übertragbar ist. Bezogen auf die gemeinsame Rotationsachse 15 ist hierbei zentral die Beschichtungsmaterialzuführung 1 1 vorgesehen, in welche (nach dieser Darstellung von oben) Beschichtungsmaterial für die Beschichtungslanze 30 zuführbar ist. Die Beschichtungsmaterialzuführung 1 1 umgebend und radial innerhalb des Hohlwellenmotors 13a ist eine Prozessmedienzuführung 12 angeordnet, beispielsweise für Prozessgas und/oder Kühlwasser. Unterhalb des Schleifringübertragers 16 ist koaxial und von dem Hohlwellenmotor 13a rotierbar die Werkzeugaufnahme 14 vorgesehen. Dieser ist in diesem Beispiel eine (optionale) Leseeinrichtung 20 nachgeschaltet, wobei hier auch die (optionale) Nullpunktmarkierung 19 auf der Leseeinrichtung 20 angeordnet ist. Die eingeführte Beschichtungslanze 30 weist einen korrespondierenden Nullpunkt 32 auf. Der Nullpunkt 32 ist zur Nullpunktmarkierung 19 ausgerichtet. Weiterhin weist die In Fig. 1, a rotary unit 10 is shown schematically, in which case the compactness of the structure of the rotary unit 10 with the rotary drive 13, here designed as a hollow shaft motor 13, can be seen well. Radially outermost, a slipring assembly 16 is provided, by means of which power flow is transferable to the coating lance 30. With reference to the common axis of rotation 15, the coating material supply 11 is centrally provided, in which (according to this representation from above) coating material for the coating lance 30 can be fed. The coating material supply 1 1 surrounding and radially within the hollow shaft motor 13 a, a process media supply 12 is arranged, for example, for process gas and / or cooling water. Below the Schleifringübertragers 16 is coaxial and rotatable from the hollow shaft motor 13 a, the tool holder 14 is provided. In this example, it is followed by an (optional) reading device 20, wherein here also the (optional) zero-point marking 19 is arranged on the reading device 20. The introduced coating lance 30 has a corresponding zero point 32. The zero point 32 is aligned with the zero mark 19. Furthermore, the
Beschichtungslanze 30 vorteilhafterweise eine Identifikationseinheit 31 auf, beispielsweise einen RFID-Chip, sodass die eingesetzte Beschichtungslanze 30 mittels der Leseeinrichtung 20 automatisiert erkennbar ist. Die Beschichtungslanze 30 ist hier zur Zylinderachse 45 ausgerichtet dargestellt und wurde aus dem zu beschichtenden Innenraum 40, hier eine Coating lance 30 advantageously an identification unit 31, for example an RFID chip, so that the coating lance 30 used by means of the reading device 20th is automatically recognizable. The coating lance 30 is shown here aligned with the cylinder axis 45 and was from the interior to be coated 40, here a
Zylinderbohrung 41 eines Zylinderkurbelgehäuses 42, wieder aufgetaucht und hat dort auf der Zylinderlauffläche 43 die gewünschte Beschichtung 44 aufgebracht. Cylinder bore 41 of a cylinder crankcase 42, reappeared and has there applied to the cylinder surface 43, the desired coating 44.
In Fig. 2 und Fig. 3 ist eine mögliche Ausführungsform einer Rotationseinheit 10 gezeigt, wobei in Fig. 2 die Rotationseinheit 10 in einer perspektivischen Ansicht ohne Beschichtungslanze 30 und in Fig. 3 die Rotationseinheit 10 in einer perspektivischen Schnittansicht mit In Fig. 2 and Fig. 3, a possible embodiment of a rotation unit 10 is shown, wherein in Fig. 2, the rotation unit 10 in a perspective view without coating lance 30 and in Fig. 3, the rotation unit 10 in a perspective sectional view
Beschichtungslanze 30 gezeigt ist. Hierbei ist ein Gehäuse 22 und stationäre Coating lance 30 is shown. Here is a housing 22 and stationary
Versorgungsanschlüsse gezeigt, nämlich einem ersten Versorgungsanschluss 24 für Supply connections shown, namely a first supply port 24 for
Beschichtungsmaterial, bevorzugt pulverförmig oder drahtförmig, einem zweiten Coating material, preferably in powder or wire form, a second
Versorgungsanschluss 25 für zum Beispiel Kühlwasser, einem dritten Supply connection 25 for, for example, cooling water, a third
Versorgungsanschluss 26, für zum Beispiel Prozessgas, und einem vierten Supply connection 26, for example, process gas, and a fourth
Versorgungsanschluss 27, für zum Beispiel Leistungsstrom für den Schleifringübertrager 16. Das Gehäuse 22 dient hierbei vornehmlich dem Bereithalten eines erforderlichen Supply terminal 27, for example, power for the slip ring transformer 16. The housing 22 serves primarily to keep ready a required
Lagerabstands zur Abstützung der hohen Rotationsgeschwindigkeit der Beschichtungslanze 30. Außerdem wird die gesamte Rotationseinheit 10 an diesem Gehäuse 22 mit einem Portal oder einem Roboter verbunden. Weiterhin ist an dem Gehäuse eine Absaugeinrichtung 17 vorgesehen, von welchem der Absauganschluss in Fig. 2 gekennzeichnet ist, und wobei die Absaugeinrichtung 17 (optional) von einer Luftdüse 18 (vergleiche Fig. 3) unterstützt ist. Es sei hier darauf hingewiesen, dass das Bauteil, welches die Versorgungsanschlüsse 24 bis 26 umfasst sowie das Gehäuse 22 stationär sind, und also nicht um die Rotationsachse 15 rotiert werden. Allein die zentral angeordneten Komponenten einschließlich zur Bearing distance to support the high rotational speed of the coating lance 30. In addition, the entire rotation unit 10 is connected to this housing 22 with a portal or a robot. Furthermore, a suction device 17 is provided on the housing, of which the suction port is indicated in Fig. 2, and wherein the suction device 17 (optionally) by an air nozzle 18 (see FIG. 3) is supported. It should be noted here that the component which comprises the supply terminals 24 to 26 and the housing 22 are stationary, and thus are not rotated about the axis of rotation 15. Alone the centrally arranged components including the
Werkzeugaufnahme 14 und die Beschichtungslanze 30 sind um die Rotationsachse 15 rotierbar. Dazu weist beispielsweise der erste Versorgungsanschluss 24 ein (bekanntes) abgedichtetes und gekapseltes Wälzlager 21 auf, beispielsweise gemäß der SPS Series von der Firma DSTI. Das Gehäuse 22 weist einen Befestigungsanschluss 28 auf, mittels dessen die Rotationseinheit 10 in einer Beschichtungslanzeneinrichtung 100 (vergleiche Fig. 4) horizontal und vertikal bewegbar ist. In der Darstellung unten an der Beschichtungslanze 30 ist die in einen Innenraum 40 (vergleiche Fig. 1 ) eintauchbare Beschichtungsdüse 33 und schematisch ein Beschichtungsstrahl 34 dargestellt. In der Darstellung am oberen Ende der Tool holder 14 and the coating lance 30 are rotatable about the axis of rotation 15. For this purpose, for example, the first supply connection 24 has a (known) sealed and encapsulated rolling bearing 21, for example in accordance with the SPS Series from DSTI. The housing 22 has a fastening connection 28, by means of which the rotation unit 10 can be moved horizontally and vertically in a coating lance device 100 (cf. FIG. 4). The coating at the bottom of the coating lance 30 shows the coating nozzle 33 immersed in an interior 40 (cf. FIG. 1) and schematically a coating jet 34. In the illustration at the top of the
Beschichtungslanze 30 bei der Werkzeugaufnahme 14 ist ein Lanzenanschluss 35 in unmittelbarer Nähe zu der (optionalen) Leseeinrichtung 20, beispielsweise ein RFI D-Lesegerät, dargestellt. In Fig. 4 ist eine vereinfachte Beschichtungslanzeneinnchtung 100 gezeigt, bei welcher zwei Rotationseinheiten 10 mit jeweils einer Beschichtungslanze 30 mittels eines Hubaktors 23 in einem Portal entlang einer horizontalen Achse und einer vertikalen Achse einem Coating lance 30 in the tool holder 14 is a lance connector 35 in close proximity to the (optional) reading device 20, for example, an RFI D reader, shown. FIG. 4 shows a simplified coating lance device 100, in which two rotary units 10 each having a coating lance 30 by means of a lifting actuator 23 in a gantry along a horizontal axis and a vertical axis
Werkstücktisch 46, beispielsweise für ein Zylinderkurbelgehäuse 42 (vergleiche Fig. 1 ), zuführbar sind. Hierbei ist nur eine Rotationseinheit 10 dargestellt und für eine zweite, bevorzugt baugleiche, Rotationseinheit der Gegenanschluss 47 für den Workpiece table 46, for example, for a cylinder crankcase 42 (see FIG. 1), can be fed. Here, only one rotation unit 10 is shown and for a second, preferably identical, rotation unit of the counter-connection 47 for the
Befestigungsanschluss 28 (vergleiche Fig. 3) des Gehäuses 22. Mounting connection 28 (see FIG. 3) of the housing 22.
Die hier vorgeschlagene Rotationseinheit erlaubt einen schwingungsarmen oder The rotation unit proposed here allows a low-vibration or
schwingungsfreien Betrieb bei hohen Drehzahlen für eine Beschichtungslanze zum thermischen Beschichten. vibration-free operation at high speeds for a coating lance for thermal coating.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
Rotationseinheit 43 Zylinderlauffläche Rotation unit 43 Cylinder surface
Beschichtungsmaterialzuführung 44 Beschichtung Coating material feed 44 Coating
Prozessmedienzuführung 45 Zylinderachse Process media feed 45 Cylinder axis
Rotationsantrieb 46 Werkstücktisch Rotary drive 46 Workpiece table
Hohlwellenmotor 47 Gegenanschluss für einen Werkzeugaufnahme Befestigungsanschluss Hollow shaft motor 47 Counter connection for a tool holder Fastening connection
Rotationsachse 100 Beschichtungslanzeneinrichtung Schleifringübertrager Rotation axis 100 Coating lance device Slip ring transmitter
Absaugeinrichtung suction
Luftdüse air nozzle
Nullpunktmarkierung Zero mark
Leseeinrichtung reader
Wälzlager Rolling
Gehäuse casing
Hubaktor lifting actuator
erster Versorgungsanschluss für first supply connection for
Beschichtungsmaterial coating material
zweiter Versorgungsanschluss für second supply connection for
Kühlwasser cooling water
dritter Versorgungsanschluss für third supply connection for
Prozessgas process gas
vierter Versorgungsanschluss für fourth supply connection for
Leistungsstrom power current
Befestigungsanschluss Mount Termination
Beschichtungslanze coating lance
Identifikationseinheit identification unit
Nullpunkt zero
Beschichtungsdüse coating
Beschichtungsstrahl coating jet
Lanzenanschluss Lanz connection
Innenraum inner space
Zylinderbohrung bore
Zylinderkurbelgehäuse cylinder crankcase

Claims

Patentansprüche claims
1. Rotationseinheit (10) für eine Beschichtungslanzeneinrichtung (100) zum thermischen Beschichten eines Innenraums (40), bevorzugt einer Zylinderbohrung (41 ) eines 1. rotation unit (10) for a coating lance device (100) for thermally coating an interior space (40), preferably a cylinder bore (41) of a
Zylinderkurbelgehäuses (42), aufweisend zumindest die folgenden Komponenten:  Cylinder crankcase (42) comprising at least the following components:
- eine Werkzeugaufnahme (14) für eine Beschichtungslanze (30) mit einer  - A tool holder (14) for a coating lance (30) with a
Rotationsachse (15);  Rotation axis (15);
- ein Rotationsantrieb (13) zum Rotieren der Werkzeugaufnahme (14) um die  - A rotary drive (13) for rotating the tool holder (14) to the
Rotationsachse (15);  Rotation axis (15);
- eine Beschichtungsmaterialzuführung (1 1 ) zum Versorgen der Beschichtungslanze (30) mit einem Beschichtungsmaterial;  - A coating material supply (1 1) for supplying the coating lance (30) with a coating material;
- eine Prozessmedienzuführung (12) zum Bereitstellen von Prozessmedien zum  a process media supply (12) for providing process media for
Beschichten eines Innenraums (40) mittels einer in der Werkzeugaufnahme (14) aufgenommenen Beschichtungslanze (30),  Coating an interior (40) by means of a coating lance (30) received in the tool holder (14),
dadurch gekennzeichnet, dass  characterized in that
der Rotationsantrieb (13) als Hohlwellenmotor (13a) koaxial zu der Rotationsachse (15) der Werkzeugaufnahme (14) ausgeführt ist, und wobei die Werkzeugaufnahme (14) und die Beschichtungsmaterialzuführung (1 1 ) sowie der Prozessmedienzuführung (12) zentral zu dem Hohlwellenmotor (13a) angeordnet sind.  the rotary drive (13) is designed as a hollow shaft motor (13a) coaxial to the rotation axis (15) of the tool holder (14), and wherein the tool holder (14) and the coating material supply (11) and the process media supply (12) are central to the hollow shaft motor ( 13a) are arranged.
2. Rotationseinheit (10) nach Anspruch 1 , wobei ein Schleifringübertrager (16) zum 2. Rotation unit (10) according to claim 1, wherein a slip ring transformer (16) for
Übertragen von elektrischem Leistungsstrom auf die Beschichtungslanze (30) radial außerhalb des Hohlwellenmotors (13a) angeordnet ist.  Transmission of electric power current to the coating lance (30) is arranged radially outside of the hollow shaft motor (13a).
3. Rotationseinheit (10) nach Anspruch 2, wobei eine Absaugeinrichtung (17) zum Abführen von Schleifabrieb des Schleifringübertragers (16) vorgesehen ist, und bevorzugt weiterhin zumindest eine Luftdüse (18) vorgesehen ist, mittels welcher ein Abführen des 3. rotation unit (10) according to claim 2, wherein a suction device (17) for removing abrasive wear of Schleifringübertragers (16) is provided, and further preferably at least one air nozzle (18) is provided, by means of which a discharge of the
Schleifabriebs unterstützbar ist. Abrasive abrasive is supportable.
4. Rotationseinheit (10) nach einem der vorhergehenden Ansprüche, wobei die Werkzeugaufnahme (14) zum Aufnehmen unterschiedlicher Beschichtungslanzen (30) eingerichtet ist, bevorzugt eine Nullpunktmarkierung (19) zum wiederholgenauen 4. rotation unit (10) according to any one of the preceding claims, wherein the tool holder (14) for receiving different coating lances (30) is arranged, preferably a zero mark (19) for repeatable
Ausrichten einer jeweiligen Beschichtungslanze (30) aufweist, und besonders bevorzugt eine Leseeinrichtung (20) zum Auslesen einer Identifikationsinformation der jeweils aufgenommenen Beschichtungslanze (30) umfasst.  Aligning a respective coating lance (30), and particularly preferably comprises a reading device (20) for reading an identification information of each recorded coating lance (30).
5. Rotationseinheit (10) nach einem der vorhergehenden Ansprüche, wobei das 5. rotation unit (10) according to one of the preceding claims, wherein the
Beschichtungsmatenal pulverförmig bereitstellbar ist und zum Einkoppeln von  Beschichtungsmatenal powder is available and for coupling of
Beschichtungsmaterial zumindest ein gasdichtes und gekapseltes sowie verschleißarmes Wälzlager (21 ) vorgesehen ist, wobei bevorzugt das Wälzlager (21 ) zumindest teilweise aus Keramik gebildet ist.  Coating material is provided at least one gas-tight and encapsulated and wear-resistant rolling bearing (21), wherein preferably the rolling bearing (21) is at least partially formed of ceramic.
6. Beschichtungslanzeneinrichtung (100) zum thermischen Beschichten eines 6. coating lance device (100) for thermally coating a
Innenraums (40), bevorzugt einer Zylinderbohrung (41 ) eines Zylinderkurbelgehäuses (42), aufweisend zumindest die folgenden Komponenten:  Interior (40), preferably a cylinder bore (41) of a cylinder crankcase (42), comprising at least the following components:
- zumindest eine Rotationseinheit (10) nach einem der vorhergehenden Ansprüche;  - At least one rotary unit (10) according to one of the preceding claims;
zumindest einen Hubaktor (23) zum axialen und/oder lateralen Positionieren der at least one lifting actuator (23) for axially and / or laterally positioning the
Rotationseinheit (10) relativ zu einem zu beschichtenden Innenraum (40); und Rotation unit (10) relative to an interior space (40) to be coated; and
- stationäre Versorgungsanschlüsse (24,25,26) für eine Stromzufuhr zu dem  stationary supply connections (24, 25, 26) for supplying power to the
Hohlwellenmotor (13a) und der Beschichtungslanze (30), sowie für die  Hollow shaft motor (13a) and the coating lance (30), and for the
Beschichtungsmaterialzuführung (1 1 ) und für die Prozessmedienzuführung (12).  Coating material supply (1 1) and for the process media supply (12).
EP18779321.1A 2017-09-26 2018-09-21 Rotating device with hollow shaft motor Active EP3687702B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017217069.7A DE102017217069A1 (en) 2017-09-26 2017-09-26 Rotary unit for a coating lance device for thermally coating an interior, and such a coating lance device
PCT/EP2018/075667 WO2019063442A1 (en) 2017-09-26 2018-09-21 Rotational unit having a hollow-shaft motor

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EP3687702A1 true EP3687702A1 (en) 2020-08-05
EP3687702B1 EP3687702B1 (en) 2021-11-24

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US (1) US11406998B2 (en)
EP (1) EP3687702B1 (en)
CN (1) CN111107942B (en)
DE (1) DE102017217069A1 (en)
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CN111107942A (en) 2020-05-05
EP3687702B1 (en) 2021-11-24
US11406998B2 (en) 2022-08-09
DE102017217069A1 (en) 2019-03-28
US20200222931A1 (en) 2020-07-16
CN111107942B (en) 2022-05-24

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