EP3174696A1 - Bras de suspension et procédé de fabrication - Google Patents

Bras de suspension et procédé de fabrication

Info

Publication number
EP3174696A1
EP3174696A1 EP15732656.2A EP15732656A EP3174696A1 EP 3174696 A1 EP3174696 A1 EP 3174696A1 EP 15732656 A EP15732656 A EP 15732656A EP 3174696 A1 EP3174696 A1 EP 3174696A1
Authority
EP
European Patent Office
Prior art keywords
handlebar
fiber
bearing
tool
handlebar according
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.)
Withdrawn
Application number
EP15732656.2A
Other languages
German (de)
English (en)
Inventor
Wolfgang Meyer
Ignacio Lobo Casanova
Martin WACHTEL
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen 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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP3174696A1 publication Critical patent/EP3174696A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0078—Measures or configurations for obtaining anchoring effects in the contact areas between layers
    • B29C37/0082—Mechanical anchoring
    • B29C37/0085—Mechanical anchoring by means of openings in the layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/019—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/005—Ball joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B29K2705/02—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/06—Rods, e.g. connecting rods, rails, stakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3055—Cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/416—Ball or spherical joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10—Constructional features of arms
    • B60G2206/124—Constructional features of arms the arm having triangular or Y-shape, e.g. wishbone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7101—Fiber-reinforced plastics [FRP]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/60—Load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
    • B60G2400/90—Other conditions or factors
    • B60G2400/94—Deformation of a vehicle part

Definitions

  • the invention relates to a method for producing a handlebar for a motor vehicle, in particular multi-point link, preferably wishbone, which is formed essentially of a fiber-plastic composite structure.
  • the invention further relates to a handlebar for a motor vehicle, in particular multi-point control,
  • wishbone which is formed substantially from a fiber-plastic composite structure, wherein the fiber-plastic composite structure has at least one means for receiving at least one further chassis part, in particular a ball joint and / or elastomer bearing.
  • a chassis part for a motor vehicle is known, with a base body and with a reinforcing structure made of plastic, through which the base body is reinforced, wherein the base body of fiber reinforced plastic is formed with at least one fiber insert.
  • the chassis part disclosed in this publication due to the fiber-reinforced plastic used for the main body has a low weight compared to steel.
  • the base body is provided with a reinforcing structure made of plastic, which with a suitable
  • Injection-molded material is molded onto the base body. This injection molded
  • Reinforcement structure means additional weight and an extra
  • chassis components in the form of bearings, such.
  • the present invention provides a method for producing a handlebar for a motor vehicle and a handlebar for a motor vehicle made of a fiber-plastic composite structure according to the
  • An object of the invention is a method for producing a handlebar for a motor vehicle, in particular multi-point link, preferably wishbone, in
  • a preform structure is understood to mean a blank which consists of at least one flat textile material and is brought into its final shape under the influence of pressure and temperature during the production process by means of a shaping tool. Due to the component requirements z. B. by means of finite element method (FEM) determines which loads or stresses the manufactured handlebar component, for example. subject in a car chassis and which
  • FEM finite element method
  • Chassis components are guided around.
  • the flat textiles can be on or off multi-layered, in particular starting from a single layer using methods such as tailored fiber placement (TFP), jacquard method, fiber matrix mixing method, commingling method and / or the film stacking method.
  • TFP tailored fiber placement
  • jacquard method fiber matrix mixing method
  • commingling method commingling method
  • film stacking method commingling method
  • film stacking method By means of these known methods, virtually any conceivable structure and thus also any required load-adapted fiber orientation can be produced.
  • the preform structure created by this method step already shows the possible shape of the later component. In particular, however, it can be recognized by the load-adapted fiber orientation at which point the component will be exposed to increased load in later use.
  • the preform structure is inserted in a next step in a forming tool. This can be done manually or mechanically by appropriate handling machines. The forming tool determines the final shape of the later handlebars.
  • the handlebar is designed as a flat component, since the handlebars shown here in terms of strength and without reinforcing beads or webs.
  • the preform structure is consolidated in the tool by applying pressure and / or temperature.
  • Consolidation or consolidation process is accomplished by increasing the pressure and temperature and maintaining these parameters for a predetermined time, which is dependent on the base material of the preform structure, solidification of the starting material or the fiber-plastic composite structure.
  • the consolidation or the consolidation process is also under the term "hot pressing" or
  • the starting material of the preform structure combines with a matrix material already present in or on the preform structure prior to introduction into the tool (for example in the form of so-called “compression and hardening")
  • Hybrid yarns Hybrid yarns.
  • the matrix material is introduced into the tool at high pressure, in particular in the form of a resin, and subsequently the consolidation process takes place in the tool. This results in the consolidation of such a homogeneous fiber-plastic composite.
  • For feeding matrix materials in the form of resin too Called "infiltration” or in the form of hybrid yarns will be commented later.
  • Downstream of the consolidation can be carried out a cooling in the tool, which is possible with the tool closed or open and can be done depending on the material within a certain period of time.
  • a controlled active cooling within the tool can be carried out by an active cooling takes place in the tool via a fluid, in particular a gas or a liquid. Thereafter, the finished component can be removed from the forming tool and a
  • At least one before and / or during and / or after the introduction of the preform structure in the forming tool at least one before and / or during and / or after the introduction of the preform structure in the forming tool
  • Chassis part introduced into the preform structure can, for.
  • a chassis part can, for.
  • the tool has suitable receptacles which finish the later position of the chassis parts or bearing receptacles on the finished
  • This method step is particularly advantageous because the at least one chassis part and / or means for receiving bearings either later difficult or with a correspondingly high cost
  • the preform structure is infiltrated with a matrix material which is introduced into the tool, in particular in the form of a resin.
  • the introduced matrix material is preferably a resin that cures during the consolidation process by the application of pressure and temperature.
  • the component property can thus be influenced in a targeted manner via the matrix material.
  • the infiltration with matrix material during consolidation is preferably carried out by the RTM method, in particular T-RTM or HD-RTM method.
  • the T-RTM process is referred to as the thermoplastic resin transfer molding or in situ process or reactive injection molding, whereby the preform structure in the mold is supplied with the chemical starting materials required for polymerization. These form by chemical reaction a so-called thermoplastic matrix material.
  • the HD-RTM process is the high-pressure resin transfer molding process in which a thermosetting matrix material is fed. This is particularly advantageous when a folded preform structure is inserted into the tool. This is the case when load-fitting the preform structure when creating the preform
  • Fiber orientation has a shape that is mirror-symmetrical and is about, preferably exactly, folded at its mirror axis, before this in the
  • the invention generates a homogeneous cross section through the consolidation process.
  • hybrid thermoplastic yarns these become already applied when creating the preform structure with load-adapted fiber orientation on the preform structure, preferably by machine sewing. In this way, in the preform structure when this is also already provided later to determine the load provided sensor and / or a sensor line of a damage detection system in the fiber-plastic composite structure.
  • the hybrid yarns consist of a textile carrier thread
  • thermoplastic matrix e.g. Polyamide (PA), polyetheretherketone (PEEK),
  • the textile carrier thread can be twisted with the matrix material.
  • the matrix material may surround the carrier thread, e.g. in which it comprises the carrier thread, in particular when it runs within the matrix material.
  • the thermoplastic matrix is formed by the shape and the texture similar to a wool thread.
  • Tool on the handlebar at least one other chassis part and / or means for receiving at least one other chassis part are introduced, in particular by assembly injection molding. If necessary, prior to the assembly injection molding a bonding agent should be provided, which is applied to the consolidated / hardened preform structure or to the chassis part or means.
  • the handlebar from a material mix, that is, for example, from a fiber-plastic composite structure and additionally a light metal, preferably aluminum or magnesium housing for a ball joint, this can be done within the tool by cost and
  • a ball joint to be integrated into the handlebar for example, a lower part of the ball socket may be formed of a fiber-plastic composite structure, whereas the upper part of the housing, which secures the ball of a pivot pin in the housing against extract, by thermoplastic or thermosphering, by injection, adhesive bonding or by a, in particular produced by molding, riveted.
  • a chassis part or the means for receiving a bearing in time by means of the BMC and / or SMC method, in particular DSMC method complementary or
  • SMC Sheet Molding Compounds
  • BMC Bulk Molding Compounds
  • SMC is a type of fiber-reinforced plastics obtained in prefabrication from resins, hardeners, fillers, additives, etc. and glass fiber pieces, e.g. up to 50 mm in length, specially manufactured by SMC in a so-called resin mat.
  • a maturing period e.g. For a few days at approx. 30 - 40 ° C, the viscosity of the resin material (BMC) or the resin mat (SMC) increases.
  • the mat or the resin material can be further processed. The further processing then takes place in heated tools in the pressing process.
  • the fiber reinforced plastic e.g.
  • Resin mat is, depending on the component size and geometry, brought into well-defined sizes and placed in the tool according to a defined insertion plan.
  • the final component shape is given by the cavity of an at least two-part tool and usually shows smooth, visually appealing surfaces on both sides.
  • BMC / SMC components are highly loadable due to their large fiber length.
  • DSMC a special form of SMC, the storage time is advantageously effectively reduced, which has a positive effect on mass production and cost reduction.
  • the presented method can thus time and cost to produce a handlebar for a motor vehicle, in particular a multi-point link, preferably a wishbone, which is formed essentially of a fiber-plastic composite structure, wherein the fiber-plastic composite structure at least one means for receiving at least one further chassis part, in particular a ball joint and / or elastomeric bearing, so that the fiber-plastic composite structure is formed in one piece and cohesively and without a reinforcing structure.
  • the handlebar does not have a separate reinforcing structure.
  • the handlebar can thus be easily performed, since an additional weight is excluded by an injection-molded reinforcing structure.
  • the fiber-plastic composite structure is preferably produced from a load-adapted preform structure, wherein the preform structure is produced as, in particular as a flat, textile TFP and / or in a jacquard process and / or of a fiber-matrix mixture - And / or commingling and / or film stacking Materiai is formed, in particular multi-layered.
  • the load adjustment by fiber orientation on the preform structure in the form of single and / or multiple superimposed and / or side by side
  • hybrid yarns are yarns in which a
  • the flat textile preform structure may consist wholly or partly of these hybrid yarns and can with a
  • Thermoplastic TFP constructions based on polypropylene (PP), polyamide (PA), partially aromatic PA (PPA) or other thermoplastic resins are the matrix materials for the fiber-matrix system to be used
  • Hybrid yarns conceivable as well as dry textile produced in the TFP process
  • thermoplastic RTM or T-RTM process or thermoset HD-RTM process Semi-finished products or constructions, which are then impregnated or infiltrated with resin in the thermoplastic RTM or T-RTM process or thermoset HD-RTM process. If, in connection with the preform structure, "dry” or a dry structure or a dry textile or textile semifinished product or a textile construction is used, this means that no matrix material is (yet) introduced into the material is (neither in the form of hybrid yarn in the form of resin or the like).
  • Chassis component in particular with regard to the chassis safety are guaranteed with regard to pull-out forces.
  • the means for receiving the bearing and / or joint is formed by a sleeve integrated in the handlebar, which consists in particular of plastic, light metal or a fiber composite material, preferably of an aluminum or magnesium alloy and / or from a glass fiber plastic (GRP) or carbon fiber plastic (CFRP) stands.
  • the bush is molded onto the fiber-plastic composite structure or bonded thereto. This results in a durable and resilient cohesive connection of the socket with the handlebar.
  • the bearing or joint is integrated by means of a partially interrupted, in particular perforated structural support of the bearing or joint in the handlebar, wherein the structural support of metal or plastic, in particular made of light metal or a fiber composite material is formed. Due to the interruption or holes in the structural support of the bearing or joint this can be connected by encapsulation in an advantageous manner with the handlebars.
  • the means formed by the fiber-plastic composite structure for receiving the bearing or the joint forms a first part of a bearing bush or a joint housing, to which at least one further
  • Housing part in particular form-fitting, for receiving the bearing or a Ball pin connects a ball joint, wherein the housing parts are cohesively and / or positively and / or non-positively connected to each other.
  • connection of the housing parts is formed by gluing and / or riveting and / or by overmolding and / or by thermoplastic and / or thermosetting overmolding.
  • the Gezzauseteii of a metallic material in particular a light metal, preferably an aluminum alloy or magnesium alloy is formed, wherein between the first and second housing part an at least another material, in particular by means of thermoplastic and / or thermoset encapsulation is inserted.
  • At least one sensor is integrated in the fiber composite structure, which detects a change in the fiber composite structure to indicate the load or an overload and / or overuse.
  • the sensor is preferably connected to a detection device and / or an evaluation device.
  • the load is preferably displayed to the driver in the cockpit of the vehicle, in particular optically and / or acoustically.
  • the evaluation unit in particular via a vehicle bus system (for example CAN bus), is networked with a control device in the vehicle so that load values can be kept retrievable in a memory.
  • a load value is exceeded, the control device can influence the onward journey or prevent a restart, so that driving with a faulty handlebar or chassis can be effectively avoided.
  • an adjusting device is integrated in the handlebar, so that the handlebar is variable in length or the handlebar has a displaceable tie rod, which is adjustable by the adjusting device, in particular linear, in relation to the handlebars.
  • the aforementioned handlebar is preferably used in a steering device for an axle system, preferably for an axle system with a rear-wheel steering.
  • the invention is described below with reference to preferred embodiments
  • Fig. 1 is a perspective view of a multi-point link
  • FIG. 1 a is a partially sectioned illustration of an end region of a link according to FIG. 1
  • Fig. 1 b is a detail view of another end portion of a link with a ball joint
  • Fig. 2 is a sectional view through a handlebar end with a
  • Fig. 3 is a perspective view of a handlebar with a sleeve or bushing bearing
  • Fig. 4a is an illustration of an embodiment of the ball joint for a
  • Fig. 4b is an illustration of an alternative embodiment of the ball joint for a handlebar
  • Fig. 5 is a schematic representation of the method for producing a handlebar
  • Fig. 1 shows a control arm of a motor vehicle in the form of a three-point link, which is made of a fiber-plastic composite structure.
  • the wishbone 1 is made of a multilayer preform structure, which has been brought by folding about the axis A shown in Figure 1 in its illustrated form.
  • a bushing 7 has been introduced in the region of the loop 4, which is formed approximately ellipse-like, so that an otherwise required gusset piece in the loop area 4 can be omitted.
  • the rubber bearing 5 has at one end a collar 5 a, which bears in each case on the outside of the handlebar 1.
  • a ball joint 3 is introduced. How to
  • the ball joint 3 consisting of the aforementioned components, is introduced here as a preassembled ball joint cartridge 3, wherein the housing 3e from Plastic can exist, with which the ball stud 3c with the ball enclosing the bearing shell 3d and the structural part 3b are encapsulated.
  • the structural part may also be formed by the preform structure or a part thereof. This will be explained later with reference to FIGS. 4a, b.
  • the ball joint 3 is protected on the pin side by a sealing bellows 3a, which surrounds both the ball stud 3c and the housing 3e form fit.
  • the structural part 3b is provided, which is completely enclosed by the fiber-plastic composite structure.
  • the siructure part 3 b has an approximately planar configuration which can flatten towards the end of the structural component towards the side remote from the ball joint 3.
  • Structural component 3b is also interspersed with holes 3bi, which are in from each other
  • the structural part 3b itself can be made of a metal material or also of a fiber-plastic composite material. The fact that the structural part 3b is completely enclosed by the fiber-plastic composite structure, resulting in a homogeneous bond between the ball joint 3 and the handlebar 1 itself. Through the holes 3bi is the consolidation and
  • Structural part 3b is additionally held positively.
  • a primer or the like is additionally held positively.
  • Ball stud 3c and a housing 3e or a ball of the ball stud 3c enclosing bearing shell 3d is in itself during the manufacture of the
  • Ball joint or the manufacturing process downstream annealing process required When annealing, the ball joint will over a period of time heated, so that the bearing shell material or the structure between ball stud and housing can set. This is needed to do that
  • the handlebar 1 shows a dashed line A, which indicates that the handlebar of the preform structure is a folded component.
  • the handlebar 1 is designed as a flat component and in the present embodiment, no webs are provided. To produce a flat component requires a simplified tool when no webs are provided, which saves additional costs in the production of the tool. However, this does not exclude that due to special loads possibly L or songs T-shaped webs can be provided.
  • the shape of the webs depends on the mechanical requirements of the handlebar and can be adapted locally in all three spatial directions.
  • the link 1 shown here also has no bead-like elevations or depressions, since they are not necessary due to the high strength and rigidity of the component. However, it does not exclude that, depending on the requirements, any elevations or depressions may be provided in the form of beads.
  • the bushes 7 already mentioned above can be designed as metal or polymeric (plastic) bushes.
  • the bushes are inserted into the tool, the rubber bearings were previously pressed into the bushes.
  • the jacks can also be omitted and the rubber bearings are inserted directly into the tool and molded with plastic.
  • the gussets required in the known from the prior art links gussets also omitted here, since they take over the gusset shape and function.
  • a further variant for avoiding the gusset pieces is possible by stitching the dry or pre-impregnated preform structure in the region of the merging of the upper and lower layers, ie in the loop region 4 shown by intermediate stitching in the intermediate region 4a. After folding the preform structure, this intermediate stitching would be provided in the region 4a before the bushing 7 is introduced into the preform structure and thus before the preform structure is inserted into the tool;
  • Fig. 2 shows the integration of a ball joint 3 in a preformed fiber-plastic composite structure 8.
  • a housing made of metal preferably a housing made of aluminum 3e a ball stud 3c with preassembled bearing shell 3d and the preformed fiber-plastic Composite structure 8 (eg a preform structure created from TFP) can be placed in an injection molding tool and overmoulded thermoplastic (RTM) or duroplastic (HD-RTM).
  • RTM thermoplastic
  • HD-RTM duroplastic
  • Aluminum SectiongePFuses in the fiber-plastic composite structure to a MultiMaterial design ensures that high forces acting on the ball pin forces, such as the forces shown in Figure 2 F A and F D , in a wishbone of fiber-plastic structure can be realized, which could alternatively be achieved by, if necessary. consuming, difficult to produce fiber orientation.
  • handlebars made of fiber-plastic composite structure are suitable, which are based on a preform structure, which are folded before insertion into the tool or Voreintral of bearing bushes and / or rubber bearings.
  • the fiber-plastic composite structure or preform structure 21 shown in FIG. 3, shown here with webs 30 and 31 serving to reinforce the rigidity, is also executed without a introduced during or after the consolidation process or injection molded reinforcing structure.
  • the fiber-plastic composite structure is designed to integrate the rubber bearing 5 in the direction of the tool-opening movement Where without undercuts, such that they only half of the rubber bearings 5 and
  • Bush 7 leads. A folding of the preform fiber structure is thus not required, so that an even more simplified manufacturing process for the integration of bushes or bearings is guaranteed.
  • the sleeve 7 is connected to the handlebar 21 by a
  • preform structures which are produced by the TFP process. These may consist of hybrid yarn with integrated thermoplastic matrix.
  • the preform structures can also consist of glass fiber or carbon fiber, which are then infiltrated in the thermoplastic (T-RTM) or thermoset (HD-RTM) process with plastic or a plastic matrix.
  • T-RTM thermoplastic
  • HD-RTM thermoset
  • the integration of the rubber bearing can by injection by means of the plastic matrix similar to the integration of a ball joint in one
  • Figures 4a and 4b show further variants of ball joints, which are also suitable for integration in a fiber-plastic composite handlebars.
  • Fig. 4a shows a ball joint 31 with a ball pivot 31 c and a bearing shell 31 d, wherein the ball pin is embedded with enclosing bearing shell in a metal housing or metal cage 30. Also visible is a structural component 31 b, which encloses the metal housing or the metal cage 30. In other words that's it
  • the housing 31 e surrounds the aforementioned components in such a way that the ball pin 31 c has the usual pivoting and rotational mobility with ball joints.
  • the housing 31 e is introduced by encapsulation or encloses the structural component 31 b and metal cage 30 to a solid composite.
  • the structural part can be made of metal, of organic sheet or also by a preform structure, for example, in the TFP process is to be executed. Under organic sheet is a semi-finished thermoplastic
  • Plastic reinforced to understand continuous fibers which is usually made in sheet form. Organo sheets can be plastically deformed under the influence of temperature (for example, by the forming process thermoforming).
  • FIG. 4b shows a slightly modified alternative to FIG. 4a.
  • the housing is made in two parts.
  • the lower part 41 eu of the housing is designed as the structural part of Figure 4a, wherein no hole is provided, but a spherical recess or bead 45 is provided, which is the
  • Bearing shell 41 d or the ball of the ball stud 41 c at least partially,
  • the upper part 41 eo or pin-side part of the housing is formed by a conical ring 41 eo , which is connected to the lower housing part 41 eo form or materially.
  • the ball stud 41 c is held with the bearing shell 41 d in the ball joint 41.
  • the structural part 31 b, 41 b is not a separate component, as described in the embodiments described above, but is formed by the preform structure itself or an outer subarea thereof, as already stated for FIG. 1.
  • the preform structure 31 b has a hole 33 there, where later the ball stud 31 c, if necessary with bearing shell 31 d and / or bearing cage 30, is encapsulated with plastic after consolidation in order to form the housing ,
  • the partial region of the preform structure is provided with a recess or bead or trough 45, which may already be provided during the production of the preform structure.
  • the trough 45 can also be introduced by the fact that it is present in the forming tool and introduced after insertion into the tool or the
  • the partial area of the preform structure forms the lower housing part 41 eu .
  • the joining between the upper housing part 41 eo and lower housing part 41 eu can, as already described above, by a
  • Bonding 47 or 42b as shown in Figure 4b also shown by an encapsulation.
  • FIG. 5 shows a sequence of the method steps according to the invention.
  • a preform structure is created, e.g. a flat textile construction (scrim, woven or knitted fabric or the like), by means of the TFP method under
  • Tool introduced.
  • the tool is closed.
  • the component is consolidated.
  • a temperature adapted to the materials used and a predetermined pressure in or with the tool is generated and held for a certain time.
  • the handlebar is completed and can be removed from the tool by means of a handling robot.
  • License plate handlebar

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Vehicle Body Suspensions (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

Procédé de fabrication d'un bras de suspension (1) pour véhicule à moteur, notamment d'un bras à plusieurs points, de préférence d'un bras de suspension transversal, sensiblement constitué d'une structure composite plastique-fibres, comprenant les étapes consistant à réaliser une structure de préforme avec une orientation de fibres adaptée à la charge, introduire la structure de préforme dans un outillage de façonnage, solidifier la structure de préforme dans l'outillage par application de pression et/ou de température, retirer et poursuivre l'usinage du bras de suspension (1).
EP15732656.2A 2014-07-29 2015-06-29 Bras de suspension et procédé de fabrication Withdrawn EP3174696A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014214827.8A DE102014214827A1 (de) 2014-07-29 2014-07-29 Lenker sowie Verfahren zu dessen Herstellung
PCT/EP2015/064629 WO2016015933A1 (fr) 2014-07-29 2015-06-29 Bras de suspension et procédé de fabrication

Publications (1)

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EP3174696A1 true EP3174696A1 (fr) 2017-06-07

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EP15732656.2A Withdrawn EP3174696A1 (fr) 2014-07-29 2015-06-29 Bras de suspension et procédé de fabrication

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US (1) US10350951B2 (fr)
EP (1) EP3174696A1 (fr)
KR (1) KR20170038041A (fr)
CN (1) CN106536146B (fr)
DE (1) DE102014214827A1 (fr)
WO (1) WO2016015933A1 (fr)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015222298B4 (de) 2015-11-12 2018-12-13 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Fahrwerkbauteils
DE102015222297A1 (de) * 2015-11-12 2017-05-18 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Fahrzeugbauteils
KR101815147B1 (ko) * 2016-02-04 2018-01-31 주식회사 일진 볼 조인트 및 그 제작방법
DE102016203853A1 (de) * 2016-03-09 2017-09-14 Zf Friedrichshafen Ag Fahrwerklenker
DE102016205014B4 (de) * 2016-03-24 2019-12-24 Schunk Kohlenstofftechnik Gmbh Faserverbundbauteil und Verfahren zur Herstellung
DE102016208579B3 (de) * 2016-05-19 2017-08-31 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Fahrzeugbauteils
DE102016210891A1 (de) 2016-06-17 2017-12-21 Zf Friedrichshafen Ag Verfahren und Anlage zur Herstellung eines Faserkunststoffverbundbauteils unter Verwendung von Sub-Preforms
KR20180036387A (ko) * 2016-09-30 2018-04-09 롯데케미칼 주식회사 어퍼 암
DE102016219303A1 (de) * 2016-10-05 2018-04-05 Zf Friedrichshafen Ag Fahrwerksbauteil in Faserkunststoffverbund-Monobauweise mit duroplastischem Matrixwerkstoff und Verfahren zu dessen Herstellung
CA2981430A1 (fr) * 2016-10-21 2018-04-21 Icon Vehicle Dynamics Llc Assemblage de rotule a angularite prononcee
DE102016223323A1 (de) * 2016-11-24 2018-05-24 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Lenkers, sowie Lenker und Radaufhängung
DE102017206687B4 (de) 2017-04-20 2020-10-29 Zf Friedrichshafen Ag Verfahren zum Herstellen eines Fahrzeugbauteils und ein solches Fahrzeugbauteil, insbesondere Fahrwerkbauteil
DE102017208097B3 (de) 2017-05-15 2018-09-06 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Gelenkbauteils
DE102017213563A1 (de) 2017-08-04 2019-02-07 Zf Friedrichshafen Ag Dreipunktlenker und Herstellungsverfahren für einen Dreipunktlenker
DE102017213564A1 (de) 2017-08-04 2019-02-07 Zf Friedrichshafen Ag Dreipunktlenker und Herstellungsverfahren für einen Dreipunktlenker
DE102017219515B4 (de) * 2017-11-02 2022-10-06 Ford Global Technologies, Llc Geklebter, kohlefaserverstärkter Querlenker mit Kugelgelenk sowie Verfahren zum Herstellen desselben
DE102017220962A1 (de) * 2017-11-23 2019-05-23 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Hinterachsgetriebequerträgers, Hinterachsgetriebequerträger sowie Kraftfahrzeug
DE102017220965A1 (de) * 2017-11-23 2019-05-23 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Fahrwerksbauteils sowie Fahrwerksbauteil
DE102017220966A1 (de) * 2017-11-23 2019-05-23 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Fahrwerksbauteils sowie Fahrwerksbauteil
DE102017222579A1 (de) * 2017-12-13 2019-06-13 Schäfer MWN GmbH Verfahren zum Herstellen eines Bauelements und Bauelement
DE102018202307A1 (de) 2018-02-15 2019-08-22 Ford Global Technologies, Llc Lenker für eine Radaufhängung
DE102018204732B4 (de) 2018-03-28 2022-10-27 Ford Global Technologies, Llc Heckklappe für ein Kraftfahrzeug und Verfahren zum Herstellen einer eine Fensteröffnung zur Aufnahme eines Heckfensters aufweisenden Heckklappe
DE102018205109A1 (de) * 2018-04-05 2019-10-10 Zf Friedrichshafen Ag Gelenkbauteil
DE102018205776A1 (de) 2018-04-17 2019-10-17 Ford Global Technologies, Llc Fahrzeugbauteil
KR102100200B1 (ko) * 2018-06-26 2020-05-19 주식회사 일진 부시 조립체, 이를 포함하는 현가 암, 및 현가 암의 제조 방법
IT201800007977A1 (it) * 2018-08-08 2020-02-08 Skf Ab Interfaccia di attacco per collegare un componente di veicolo in materiale composito
IT201800007978A1 (it) 2018-08-08 2020-02-08 Skf Ab Montante o articolazione di sospensione a basso peso
IT201800007980A1 (it) 2018-08-08 2020-02-08 Skf Ab Montante o articolazione di sospensione a basso peso
DE102018213513B4 (de) 2018-08-10 2024-03-21 Zf Friedrichshafen Ag Fahrwerkbauteil, Verfahren zur Herstellung eines Fahrwerkbauteils sowie Radaufhängung für ein Kraftfahrzeug
EP3626607A1 (fr) * 2018-09-18 2020-03-25 Airbus Operations GmbH Composant d'aéronef
DE102018216061A1 (de) 2018-09-20 2020-03-26 Zf Friedrichshafen Ag Fahrwerkbauteil, Verfahren zur Herstellung eines Fahrwerkbauteils sowie Radaufhängung
CN109109593A (zh) * 2018-09-26 2019-01-01 浙江方泰汽车配件有限公司 一种高强度轻量型控制臂
DE102019206435A1 (de) * 2019-05-06 2020-11-12 Schäfer MWN GmbH Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs
DE102019206436A1 (de) * 2019-05-06 2020-11-12 Schäfer MWN GmbH Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs
US20220347900A1 (en) * 2019-06-21 2022-11-03 Magna Exteriors Inc. Three dimensional overmolding
CN110843441B (zh) * 2019-07-30 2021-11-05 中国第一汽车股份有限公司 一种碳纤维复合材料控制臂及其制备方法
CN110566569A (zh) * 2019-09-25 2019-12-13 博戈橡胶塑料（株洲）有限公司 一种带橡胶金属球铰的轻量化接头制作方法
CN110576561B (zh) * 2019-09-25 2022-05-27 博戈橡胶塑料（株洲）有限公司 一种带橡胶金属球铰的轻量化连杆制作方法
KR102285358B1 (ko) * 2019-12-20 2021-08-03 (주)동희산업 차량용 부재의 제조방법 및 그 제조방법에 따른 차량용 부재
KR20210084162A (ko) * 2019-12-27 2021-07-07 주식회사 일진 차량용 현가암의 제조방법
CN113043528B (zh) * 2021-02-09 2022-02-18 博戈橡胶塑料（株洲）有限公司 一种控制臂成型方法及控制臂
CN114074436B (zh) * 2021-07-01 2023-09-29 亨弗劳恩(江苏)复合材料研发有限公司 一种车用复合材料控制臂及其成型方法
KR102664953B1 (ko) * 2022-07-07 2024-05-09 주식회사 동희산업 차량의 서스펜션 암

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2976068A (en) * 1956-09-11 1961-03-21 Ford Motor Co Ball joint
AT325431B (de) * 1972-01-05 1975-10-27 Joern Raoul Dipl Ing Kugelgelenk
US5163769A (en) * 1991-01-30 1992-11-17 Trw, Inc. Ball joint having service life indicator
US20020153648A1 (en) 2000-06-30 2002-10-24 Lawson Robert C. Manufacturing method for composite transverse leaf spring
DE10134259A1 (de) * 2001-07-18 2003-02-06 Zf Lemfoerder Metallwaren Ag Kugelgelenk mit integriertem Winkelsensor
DE10338833B4 (de) * 2003-08-21 2005-12-22 Zf Friedrichshafen Ag Kugelgelenk mit Schwenkwinkelsensor
DE102004048753A1 (de) * 2004-10-05 2006-04-06 Wulf Gaertner Autoparts Ag Kugelgelenk
FR2887601B1 (fr) * 2005-06-24 2007-10-05 Snecma Moteurs Sa Piece mecanique et procede de fabrication d'une telle piece
DE102006015169A1 (de) * 2006-03-30 2007-10-11 Zf Friedrichshafen Ag Radführungslenker für aktives Fahrwerk
DE102007015616B4 (de) * 2007-03-29 2021-10-21 Zf Friedrichshafen Ag Verbindungsstück zum gelenkigen Verbinden von im Fahrwerk eines Fahrzeugs angeordneten Bauelementen
DE102008011658A1 (de) * 2008-02-28 2009-09-03 Daimler Ag Verfahren zum Herstellen eines Faserverbund-Bauteils und Faserverbund-Bauteil
DE102008046991A1 (de) * 2008-09-12 2010-03-25 Mt Aerospace Ag Lasttragendes dickwandiges Faserverbundstrukturbauteil und Verfahren zu dessen Herstellung
DE102010043040A1 (de) * 2010-10-28 2012-05-03 Zf Friedrichshafen Ag Verfahren zur Herstellung eines Fahrwerkbauteils
DE102011010367A1 (de) 2011-02-04 2012-08-09 Daimler Ag Fahrwerksteil für einen Kraftwagen und Verfahren zu dessen Herstellung
DE102011077337A1 (de) 2011-06-10 2012-12-13 Zf Friedrichshafen Ag Kunststoff-Bauteile mit komplexer, verzweigter Struktur
DE102011053222A1 (de) 2011-09-02 2013-03-07 Gmf Umformtechnik Gmbh Querlenker aus faserverstärktem Kunststoff für eine Radaufhängung eines Fahrzeuges und Verfahren zu dessen Herstellung
ES2677820T3 (es) * 2012-07-27 2018-08-07 Engineering Developments For Automotive Industry, S.L. Estabilizador para vehículos
JP5975783B2 (ja) * 2012-08-10 2016-08-23 ニッタ株式会社 ボールジョイント
DE102012017944A1 (de) * 2012-09-11 2014-03-13 Audi Ag Verfahren zum Herstellen eines Faserverbundbauteils
DE102012218686A1 (de) * 2012-10-15 2014-04-17 Zf Friedrichshafen Ag Bauteil für ein Fahrwerk eines Fahrzeugs
EP2759423B1 (fr) * 2013-01-28 2015-04-22 Gestamp Umformtechnik GmbH Bras oscillant transversal en plastique renforcé en fibres pour une suspension de roue d'un véhicule
KR101732063B1 (ko) * 2015-04-29 2017-05-08 주식회사 일진 볼 조인트 일체형 자동차용 하이브리드 암 및 그 제조 방법
JP6234491B2 (ja) * 2016-02-10 2017-11-22 日本発條株式会社 ボールジョイントの製造方法およびスタビリンクの製造方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2016015933A1 *

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Publication number Publication date
US10350951B2 (en) 2019-07-16
KR20170038041A (ko) 2017-04-05
WO2016015933A1 (fr) 2016-02-04
CN106536146A (zh) 2017-03-22
CN106536146B (zh) 2020-03-06
DE102014214827A1 (de) 2016-02-04
US20170210187A1 (en) 2017-07-27

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