WO2018219539A1 - Procédé pour la réalisation d'une liaison par force entre au moins deux composants, module de dosage avec écran thermique - Google Patents

Procédé pour la réalisation d'une liaison par force entre au moins deux composants, module de dosage avec écran thermique Download PDF

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Publication number
WO2018219539A1
WO2018219539A1 PCT/EP2018/059245 EP2018059245W WO2018219539A1 WO 2018219539 A1 WO2018219539 A1 WO 2018219539A1 EP 2018059245 W EP2018059245 W EP 2018059245W WO 2018219539 A1 WO2018219539 A1 WO 2018219539A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
components
metering module
heat shield
recess
Prior art date
Application number
PCT/EP2018/059245
Other languages
German (de)
English (en)
Inventor
Klaus-Dieter Sulzberger
Dimitrios DORDANAS
Original Assignee
Robert Bosch 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
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2018219539A1 publication Critical patent/WO2018219539A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
    • B21J15/48—Devices for caulking rivets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K25/00—Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
    • F16B5/045—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting without the use of separate rivets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/20—Exhaust treating devices having provisions not otherwise provided for for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus

Definitions

  • the invention relates to a method for producing a non-positive connection between at least two components, which may be in particular a metering module and a heat shield. Furthermore, the invention relates to a metering module with a heat shield, which is non-positively connected to the metering module.
  • Metering modules are used in metering systems which serve to meter in a reducing agent, in particular an aqueous urea solution, into an exhaust gas system of a motor vehicle in order to reduce the nitrogen oxide emission of the motor vehicle.
  • the metering module is arranged for this purpose on the exhaust line of the motor vehicle.
  • a heat shield may be provided on the outside of the metering module. This is usually welded to the metering module, in particular a flange plate of the dosing, in order to simplify the handling of the dosing before final assembly. Because of the welded connection, a material connection is achieved, through which the robustness of the dosing module increases. In this way, a transport protection can be achieved on a
  • the present invention is therefore based on the object, an alternative method for producing a compound between at least two
  • a metering module is proposed with the features of claim 7, which is connected to a heat shield, wherein preferably the compound has been prepared by the process according to the invention.
  • Proposed is a method for producing a frictional
  • connection between at least two components which may be in particular a metering module and a heat shield.
  • the adhesion between the components is achieved by plastic deformation of at least one component. The method comprises the steps:
  • connection produced by the method thus leads to a frictional connection between the first and the second component.
  • the frictional connection replaces further connection means or measures which serve to connect the two components, in particular, to a material connection
  • Welding can be dispensed with.
  • the non-positive connection also simplifies the final assembly since it serves as an assembly aid without first having to remove previously set mechanical connection or fastening means.
  • an outer contour of the elevation of the first component is adapted to an inner contour of the recess of the second component, so that the elevation of the first component engaging in the recess abuts the second component in the radial direction substantially without gaps. This ensures that the elevation of the first component is evenly radially compressed over its circumference or caulked radially.
  • a caulking mandrel which has a conical pressing surface or wedge-shaped pressing surfaces. This allows the
  • Camming mandrel easier to penetrate into the material of the survey of the first component to cause the radial compression or the radial caulking within the recess of the second component.
  • the two components are connected to each other exclusively non-positively. This means that preferably no further measures for connecting the two components are taken, so that the costs are kept low. The traction ensures at least adequate transport protection.
  • the inventive method is characterized in particular by the fact that a process-reliable joining of the components in high quantities and short cycle times can be achieved by a force-displacement-monitored radial compression or radial bracing.
  • the inventive method for producing a positive connection between a heat shield and a metering module for a reducing agent is used.
  • the frictional connection replaces a welded connection, so that the manufacturing costs are reduced.
  • process reliability increases, eliminating the risk of welding distortion and / or welding spatter.
  • a metering module for a reducing agent in particular for an aqueous urea solution, further proposed, which has a heat shield, which is non-positively connected to the metering module, preferably with a flange plate of the metering.
  • a heat shield which is non-positively connected to the metering module, preferably with a flange plate of the metering.
  • the non-positive connection serves as an assembly aid.
  • the heat shield is exclusively non-positively connected to the dosing or with the flange plate of the dosing. This means that beyond the frictional connection neither a material bond by welding, nor a Form fit exists. As a result, the production costs can be further reduced.
  • Heat shield and the metering module or the flange of the metering module have been prepared by a method according to the invention.
  • the first component having the elevation may, for example, be the heat shield and the second component having the recess may be the flange plate of the metering module, or vice versa.
  • FIG. 1 shows a detail of a schematic longitudinal section through two components to be connected and a caulking mandrel
  • FIG. 2 is a detail of a perspective view of the second component of FIG. 1
  • FIG. 3 is a detail of a perspective view of the first component of FIG. 1
  • Fig. 4 shows a detail of a perspective view of the two components after their connection
  • Fig. 5 is a schematic longitudinal section through the connection region of the two components.
  • FIG. 1 shows a first component 1 and a second component which it is necessary to connect.
  • a frictional connection between the two components 1, 2 is to be achieved.
  • the first component 1, which in the present case is a heat shield for a dosing module has an elevation 3 which can be brought into engagement with a recess 4 of the second component 2.
  • the second component 2 is a flange plate of a dosing module.
  • the two components 1, 2 are placed flat on each other, so that the recess 4 comes to lie in register with the survey 3. Then, the two components 1, 2 are compressed, so that the elevation 3 engages in the recess 4 and a surface contact of the two components 1, 2 is made. Since the elevation 3 has an outer contour 7 which is adapted to an inner contour 8 of the recess 4, a slight radial gap remains between the two components 1, 2.
  • Stiffening tool attached to an end face 6 of the elevation 3 of the first component 1, so that a tapered pressing surface 9 comes to rest centrally with respect to the end face 6.
  • the Verstemmdorn 5 is thereby brought over one side of the second component 2, which faces away from the first component 1.
  • Verstemmdorn 5 is pressed into the end face 6 (see arrow indicating the direction of force and the force F), wherein the elevation 3 is plastically deformed. In this case, material is displaced radially outward, so that a radial compression or radial caulking is achieved.
  • the second component 2 which has the recess 4
  • the recess 4 has a circular inner contour 8.
  • the recess 4 may be in the production of the second component 2 or subsequently, for example, by a bore, produced.
  • FIG. 3 shows the first component 1 in an enlarged view.
  • the elevation 3 of the first component 1 is adapted to the recess 4, so that the elevation 3 has a circular outer contour 7.
  • the non-positively connected components 1, 2 are shown in FIG. 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Plates (AREA)

Abstract

L'invention concerne un procédé pour la réalisation d'une liaison par force entre au moins deux composants (1, 2), en particulier entre un module de dosage et un écran thermique, la liaison par force entre les composants (1, 2) étant obtenue par déformation plastique d'au moins un composant (1), le procédé comprenant les étapes de : - superposition des deux composants (1, 2) de sorte qu'un rehaussement (3) du premier composant (1) s'engage dans une cavité (4) du deuxième composant (2), - placement d'un mandrin de précontrainte (5) sur une surface frontale (6) du rehaussement (3) du premier composant (1), le mandrin de précontrainte (5) étant amené à partir d'un côté du deuxième composant (2) qui ne fait pas face au premier composant (1), et – enfoncement du mandrin de précontrainte (5) dans la surface frontale (6) du rehaussement (3) du premier composant (1), du matériau étant déplacé, au moyen duquel le rehaussement (3) est comprimé radialement à l'intérieur de la cavité (4). L'invention concerne en outre un module de dosage comprenant un écran thermique qui est lié par une liaison par force au module de dosage.
PCT/EP2018/059245 2017-06-01 2018-04-11 Procédé pour la réalisation d'une liaison par force entre au moins deux composants, module de dosage avec écran thermique WO2018219539A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017209256.4A DE102017209256A1 (de) 2017-06-01 2017-06-01 Verfahren zur Herstellung einer kraftschlüssigen Verbindung zwischen mindestens zwei Bauteilen, Dosiermodul mit Hitzeschild
DE102017209256.4 2017-06-01

Publications (1)

Publication Number Publication Date
WO2018219539A1 true WO2018219539A1 (fr) 2018-12-06

Family

ID=61972124

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/059245 WO2018219539A1 (fr) 2017-06-01 2018-04-11 Procédé pour la réalisation d'une liaison par force entre au moins deux composants, module de dosage avec écran thermique

Country Status (2)

Country Link
DE (1) DE102017209256A1 (fr)
WO (1) WO2018219539A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1422384A1 (fr) * 2001-08-03 2004-05-26 Akita Fine Blanking Co., Ltd. Procede de fabrication d'element constitutif de turbocompresseur du type vgs, element constitutif fabrique selon ledit procede, ensemble de guidage de gaz d'echappement de turbocompresseur dans lequel ledit element constitutif est utilise, et turbocompresseur du type vgs equipe dudit ensemble de gui
DE102008055080A1 (de) * 2008-12-22 2010-07-01 Robert Bosch Gmbh Ventilvorrichtung für fluide, schadstoffreduzierende Stoffe
DE102011120685A1 (de) * 2011-12-09 2012-07-05 Daimler Ag Abgasstrang für ein Fahrzeug
WO2012138373A1 (fr) * 2011-04-04 2012-10-11 Mack Trucks, Inc. Injecteur refroidi par fluide et système de traitement postcombustion des gaz échappement, véhicule, et procédé d'utilisation d'un injecteur refroidi par fluide
WO2013110483A1 (fr) * 2012-01-27 2013-08-01 Robert Bosch Gmbh Joint pour un dispositif de retraitement de gaz d'échappement d'un moteur à combustion interne

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1422384A1 (fr) * 2001-08-03 2004-05-26 Akita Fine Blanking Co., Ltd. Procede de fabrication d'element constitutif de turbocompresseur du type vgs, element constitutif fabrique selon ledit procede, ensemble de guidage de gaz d'echappement de turbocompresseur dans lequel ledit element constitutif est utilise, et turbocompresseur du type vgs equipe dudit ensemble de gui
DE102008055080A1 (de) * 2008-12-22 2010-07-01 Robert Bosch Gmbh Ventilvorrichtung für fluide, schadstoffreduzierende Stoffe
WO2012138373A1 (fr) * 2011-04-04 2012-10-11 Mack Trucks, Inc. Injecteur refroidi par fluide et système de traitement postcombustion des gaz échappement, véhicule, et procédé d'utilisation d'un injecteur refroidi par fluide
DE102011120685A1 (de) * 2011-12-09 2012-07-05 Daimler Ag Abgasstrang für ein Fahrzeug
WO2013110483A1 (fr) * 2012-01-27 2013-08-01 Robert Bosch Gmbh Joint pour un dispositif de retraitement de gaz d'échappement d'un moteur à combustion interne

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