METHOD FOR PRODUCE CORELESS FIBER COMPOSITE COMPOSITES AND WINDING PIN FOR A FIBER COMPOSITE COMPOSITE COMPOSITE

Description

[0001] The invention relates to a method for producing high-precision fiber composite components, which are manufactured, for example, using a wet winding process. To connect these fiber composite components to other components or to fasten other components or assemblies to the fiber composite component, fastening points with internal threads and contact surfaces are provided at various locations. There, the fiber composite component is connected to an adjacent structure or another component or assembly.

[0002] The synonymous terms "fiber composite component" or "fiber component" refer to components made of a fiber composite material that have at least two attachment points. At least one contact surface and a thread or bore are formed in the area of ​​each attachment point. At and with the help of these attachment points, the fiber composite component is screwed, riveted, or otherwise detachably connected to another structure and / or another fiber composite component. At least some of the winding pins used in wet winding are designed as attachment points. They have a contact surface and an optional (internal) thread or bore.

[0003] Many fiber composite components are manufactured by wet winding, as described, for example, in EP 1 268 164 B1 and DE 10 2014 019 080 A1. In the wet winding process, winding pins are arranged and aligned in the desired position in a winding device. The winding pins form the future nodes of a truss or supporting structure produced by wet winding. A resin-impregnated fiber is then wound around the winding pins to create the desired component. The fiber can also be impregnated with a (still) liquid resin in a second step. In most cases, the component produced by wet winding is a bar structure with bars subjected primarily to compressive or tensile loads.

[0004] WO 2018 / 229437 A1 discloses a method for producing a part made of composite material, wherein fibers F (later impregnated with resin) are wound around tabs of a chassis and around inner windings, the axes of the tabs and the windings having different orientations in order to give the fiber lattice a three-dimensional shape.

[0005] A fiber within the meaning of the invention is a bundle, strand, or multifilament yarn made of more or less parallel continuous fibers. The fiber can consist of, for example, carbon, glass, aramid, basalt, flax, and / or hemp.

[0006] In the context of the invention, the term "winding" encompasses the winding of fibers around two or more winding pins. The fibers at least partially enclose specially designed areas of the winding pins, so that after the resin has cured, a positive and material connection is established between the fibers and the winding pins. The specially designed areas on the winding pins are hereinafter referred to as "winding pins." Forces and moments can be transferred from the fibers to the winding pin and vice versa via the winding pins.

[0007] The shaping of a fiber composite component according to the invention can also be realized by other textile techniques, such as braiding, knotting, etc.

[0008] Fiber composite components are not only very lightweight but also very stiff. However, during the manufacturing of fiber composite components, deviations in the position and / or orientation of the contact surfaces from the nominal values ​​often occur. In this respect, fiber composite components are no different from other components, such as cast parts or welded rod structures. However, due to the isotropy and homogeneity of metallic components, tolerances can be directly adjusted using machining methods.

[0009] If such a fiber component is screwed or riveted to an adjacent structure, for example, the fiber component is deformed due to deviations in the position and / or orientation of its contact surfaces when tightening the screws or attaching the rivets. Due to the high rigidity, these deformations lead to internal stresses in the fiber composite component. These internal stresses are undesirable, among other things because they reduce the load-bearing capacity of the fiber composite component.

[0010] There are various approaches to compensate for the negative effects of internal stresses. For example, the wall thicknesses or the diameters of the rods of the fiber composite component can be increased. However, this increases the weight and manufacturing costs of the fiber composite component.

[0011] Sometimes, connecting brackets have been used, which are arranged between the fiber composite component and an adjacent structure. These connecting brackets have elongated holes through which fastening screws are inserted. These elongated holes compensate for the positional deviations of the contact surfaces. The force transfer between the fiber composite component and the adjacent structure using connecting brackets occurs through frictional engagement between the connecting brackets.

[0012] Correcting alignment errors is not possible with these connection angles, or only to a limited extent, if at all. In the context of the invention, the term "alignment error" is understood as follows: The alignments of the contact surfaces of the fiber composite component can be described by their normal vectors. Similarly, the alignment of the mating surface of an adjacent structure can be described by its normal vector. Ideally, the normal vectors of a contact surface and the associated mating surface run parallel to each other; then, no alignment error exists. If the normal vectors of a contact surface and its mating surface are not parallel to each other, the alignment error is equal to the angle subtended by the two normal vectors.

[0013] The use of connecting angles to compensate for deviations in the position and / or alignment of the contact surfaces has several disadvantages: The number of components and the installation space required to. In addition, power transmission through frictional engagement is less efficient than direct power transmission through the shaft of a screw.

[0014] The connecting angles must be made solid due to the stress concentration, which can significantly increase the overall weight of the assembly.

[0015] The invention is based on the object of providing a method for producing fiber composite components and a winding pin which avoid the disadvantages of the prior art.

[0016] This object is achieved according to the invention by a method for producing fiber composite components, which comprises the following process steps: Positioning several winding pins in a predetermined position and orientation, with at least one of the winding pins having a contact surface; depositing one or more fibers around the winding pins so that the fibers connect two or more winding pins to each other, wherein the fiber(s) are impregnated with resin before or after shaping; curing the resin. After the resin has cured, the step of "reworking the at least one contact surface" follows to compensate for deviations in the position and / or orientation of the contact surface(s).

[0017] The term "deposition of one or more fibers" encompasses various techniques, such as "winding," "braiding," and "balling." The method according to the invention will be explained below using winding as an example, without limiting the invention thereto.

[0018] By adding, removing, or reworking the contact surface of at least one winding pin, the invention compensates for deviations in the position and / or orientation of one or more contact surfaces on a fiber component. In practice, more than one contact surface is often reworked. Often, all contact surfaces of a fiber component are reworked.

[0019] It is also possible to use one contact surface of the fiber component as a reference surface and not rework it, while only reworking the other contact surfaces. This allows the positioning and alignment errors of all contact surfaces to be equalized.

[0020] A fiber component reworked in this way can be directly screwed or riveted to an adjacent structure without causing any stress. Alternatively, the contact surfaces can be reworked to specifically adjust the desired prestress within the component. This allows compressive stress to be generated in some areas of the component and tensile stress in others.

[0021] The "reworking of the at least one contact surface" according to the invention will be illustrated using a simplified example. The simplification consists in the assumption that the contact surfaces of the fiber component run parallel to each other; i.e., there are no alignment errors.

[0022] A fiber component has four winding pins with four contact surfaces, which should be arranged in a single plane. If all contact surfaces are arranged in a single plane, there will be no deviations in the position of the contact surfaces from the nominal values. In this ideal case, the fiber component can be screwed to a flat structure without being subjected to stress.

[0023] If one of the contact surfaces protrudes by one millimeter beyond the plane in which the three other contact surfaces are located, the unprocessed fiber component would become distorted when screwed to a flat structure. To prevent this, the invention removes at least one millimeter of the contact surface protruding beyond the plane of the other contact surfaces, so that all four contact surfaces subsequently lie in one plane. As a result, the fiber composite component reworked in this way can be screwed to a flat structure without causing distortion in the fiber composite component.

[0024] In practice, it is often easier to rework three of the four or even all contact surfaces of the fiber component.

[0025] For a fiber component with "n" contact surfaces, "n-1" or even "n" contact surfaces would be reworked.

[0026] This ensures that any alignment errors that may exist are compensated for.

[0027] The removal can be achieved by removing sufficient material from the protruding contact surface(s) – for example, by milling, grinding, filing, etc. – until the reworked contact surface has the desired position and orientation. The contact surface can be formed on a compensating sleeve designed as a separate component, which is detachably connected to the winding pin. It can also be an integral part of the winding pin according to the invention.

[0028] A separate compensating sleeve is preferably made of an easily machinable material that does not flow during the service life of the fiber composite component but remains dimensionally stable. Polyoxymethylene (POM) or polyetheretherketone (PEEK) are particularly suitable.

[0029] If the contact surface is formed on a compensating sleeve that is not an integral part of the winding pin, but is mounted on or arranged on it, the contact surface can also be reworked by replacing the existing compensating sleeve with a taller or flatter compensating sleeve. This ensures that the contact surface is in the desired position after replacing the compensating sleeve. It is also possible to achieve the desired sleeve height by stacking several compensating sleeves on top of each other. Using non-parallel compensating sleeves, this method also allows for alignment errors to be compensated.

[0030] In a further advantageous embodiment, the winding pins are positioned in a winding device before winding and, if necessary, aligned. Aligning the winding pins is particularly important when the winding pins have multiple winding pins pointing in different spatial directions. The alignment of the winding pins' winding pins depends on the orientation of the tension or compression rods of the fiber composite component created during winding.

[0031] In wet winding, the fibers are impregnated with a liquid resin / matrix before and / or after winding. Once this resin has cured, all or parts of the contact surfaces of the fiber composite component can be reworked according to the invention to compensate for any deviations of the contact surfaces of the fiber composite component from the target positions and any alignment errors that may exist.

[0032] It is also possible to apply material to one or more contact surfaces of a fiber component in a targeted manner, e.g., using a generative process. This can also compensate for positioning and / or alignment errors.

[0033] The method according to the invention makes it possible to produce extremely lightweight fiber composite components. The inventive reworking of the contact surfaces after production of the fiber composite component ensures that all contact surfaces maintain the intended position and orientation. When screwing the fiber composite component according to the invention to an adjacent structure, no undesirable distortion occurs.

[0034] The manufacturing method according to the invention requires that the winding pins have a contact surface, wherein this contact surface is dimensioned such that a part of the contact surface can be removed to compensate for production-related positional deviations and / or alignment errors.

[0035] Alternatively, it is also possible to carry out the reworking by using compensating sleeves with suitable heights and thus a sufficient material allowance.

[0036] This also ensures that the contact surfaces of the finished fiber composite component assume the intended positions. In this way, deviations in the position of the contact surfaces after reworking the contact surfaces can be reduced to the desired accuracy, typically less than 0.1 mm, and often even less than 0.005 mm.

[0037] Alignment errors can be compensated by using compensating sleeves whose top and bottom surfaces are not parallel to each other.

[0038] If at least one contact surface is reworked by milling or other machining, the position and orientation of the contact surfaces depend on the design and rigidity of the fiber structure and the accuracy of the machining center or machine tool used to rework the contact surfaces. Accuracies of less than 0.005 mm are easily achievable.

[0039] The winding pin according to the invention comprises a base plate and a plurality of winding pins and a compensating sleeve arranged on the base plate, wherein a bore or an internal thread is formed on the base plate, and wherein the compensating sleeve has a contact surface.

[0040] The compensating sleeve can be simply imagined as a short piece of tubing that is placed on the base plate of the winding pin. In this case, the winding pin and the compensating sleeve can be made of different materials.

[0041] For example, the winding pin can be made of metal. It can be produced using additive manufacturing processes (e.g., 3D printing) or by casting, forging, or machining.

[0042] The compensating sleeve can then be made from a plastic, for example by injection molding.

[0043] Alternatively, the compensating sleeve and winding pin can be designed as an integral assembly. In this case, the winding pin and compensating sleeve are usually made of the same material. Here, too, metal or plastic can be used, depending on the loads the winding pin or fiber composite component must withstand.

[0044] In generative manufacturing processes, but also in the so-called two-component injection molding process, the compensating sleeve can be made of a different material than the rest of the winding pin.

[0045] The winding pins' winding pins are aligned according to the application. For example, if the fiber component is a rod structure with multiple rods, the longitudinal axis of the winding pin is often aligned orthogonally to the longitudinal axis of a rod to be manufactured by winding. The fibers can then be wound around the corresponding winding pin in such a way that a very good force transfer from the rod to the winding pin or from the winding pin to the rod is achieved.

[0046] To prevent the fiber(s) from slipping off the winding spindle, a disc is formed at the end of the winding spindle(s). This disc prevents the uncured fiber(s) from slipping off the winding spindle.

[0047] In a further advantageous embodiment of the invention, it is provided that a positioning tip is formed on one or more winding pins or their plates.

[0048] These positioning tips serve several functions. First, they allow the position of the winding pins to be determined before winding. If the actual position deviates from the target position, the actual position can be corrected before the fibers are wrapped around the winding pins.

[0049] On the other hand, the positioning tips on the finished fiber component can be used to determine the necessary extent of rework for each contact surface.

[0050] In the case of automated production, the winding pins can be grasped by a gripper at their positioning tips and positioned in the desired position and orientation on a winding device. The fiber is then wrapped around the winding pins.

[0051] If the compensating sleeve is designed as a separate component, then in a preferred embodiment of the invention, means for receiving the compensating sleeve are formed on the base plate. These means for receiving the compensating sleeve can, for example, be formed as a shoulder on the base plate. It is then easily possible to slide an annular or tubular compensating sleeve onto this shoulder, thus providing the contact surface, which is one end face of the compensating sleeve.

[0052] The base plate can be designed as a dihedral or a regular or irregular polygon. This facilitates the alignment of the winding pin in a winding device. For example, the alignment of the base plate and, with it, the winding pin can be determined or checked using a marking in the winding device. This ensures, in a simple and reliable way, that the winding pins of the winding pin are aligned as desired in all three spatial directions.

[0053] Further advantages and advantageous embodiments of the invention can be found in the following drawings, their description and the patent claims. drawing

[0054] They show: Figure 1: a fiber composite component with three contact surfaces before reworking; Figure 2: the fiber composite component according to Figure 1after the revision; Figure 3 shows the fiber composite component 1 connected to a structure 9; Figures 4 to 6 show exemplary embodiments of winding pins according to the invention, and Figure 7 shows a winding device. Description of the embodiments

[0055] The Figures 1 to 3 serve to explain the method according to the invention and its advantages. These figures show partial views of a fiber composite component 1 according to the invention in various stages 1 and a structure 9 to which the fiber component 1 is to be connected. An upper side 10 of the structure 9 is flat. The fiber component 1 is to be connected to the structure 9 on this flat or planar upper side 10.

[0056] In the Figure 1A part of a fiber composite component 1 is shown. It comprises several rods 3. The fiber composite component 1 can be produced, for example, by wet winding. In this process, a resin-impregnated fiber is wound around the winding pins 5.1 to 5.3, which are wound in a winding device 31 (see Figure 7 ) are picked up and held. After curing, the fiber component 1 is removed from the winding device.

[0057] The fiber composite component 1 may also have been produced by an alternative process such as coiling or braiding.

[0058] The winding pins 5 are shown only very schematically; they are largely covered by the fibers 3. Each winding pin 5.1 to 5.3 has a contact surface 7.1 to 7.3.

[0059] In the Figure 1 the fiber composite component 1 is shown as it comes out of a winding device 31 (not shown); ie the contact surfaces 7.1 to 7.3 have not (yet) been reworked.

[0060] During the production of the fiber composite component 1, for example, by wet winding, position and / or alignment errors can occur at each contact surface 7.1 to 7.3, which, in the worst case, overlap. These position and / or alignment errors cannot be kept within narrow tolerance limits, or can only be kept with great effort.

[0061] If the fiber component 1 were to be screwed to the upper side 10 of the rigid structure 9 in this state (ie with the position and alignment errors on the contact surfaces 7.1 to 7.3), the fiber component 1 would become distorted due to the position and alignment errors, which is undesirable.

[0062] The screw connection is made via internal threads in the winding pins 5.1 to 5.3. The internal threads are in the Figures 1 to 3 not shown. In the Figure 5 such an internal thread 19 is shown.

[0063] Instead of internal threads, bores can also be provided in the winding pins 5.1 to 5.3 in order to connect the fiber composite component 1 to the structure 9. In this case, the connection can be made by rivets that are inserted into the bores of the winding pins 5.

[0064] According to the invention, the position and / or alignment errors of the contact surfaces are equalized by reworking the contact surfaces 7.1 to 7.3 of the fiber component 1. This can be done, for example, by milling the contact surfaces 7.1 to 7.3 of the fiber component 1. In doing so, sufficient material is removed from each contact surface 7.1 to 7.3 so that all contact surfaces 7.1 to 7.3 lie in one plane. This common plane is indicated by a broken line in the Figure 2 This level runs in the Figure 2 parallel to the top 10 of the structure 9.

[0065] If the fiber composite component 1 with the revised contact surfaces 7.1 to 7.3 arranged in one plane is screwed to the structure 9, the fiber component 1 is not deformed or stressed. This situation is in the Figure 3 shown. Due to the inventive reworking of the contact surfaces 7.1 to 7.3, all contact surfaces lie flat on the upper side 10 of the structure 9.

[0066] The manufacturing method according to the invention thus makes it possible to compensate for production-related deviations in the position and / or orientation of the contact surfaces 7.1 to 7.3 by removing material from the contact surfaces 7 until all contact surfaces 7 have the desired position and orientation. This means that the actual position corresponds to within a fraction of a millimeter of the target position.

[0067] In the Figures 4 and 5 An embodiment of a winding pin 5 according to the invention is shown. Figure 4 shows an isometric view of the winding pin 5. The Figure 5 shows a section through the winding pin 5.

[0068] In the Figure 4 An embodiment of a winding pin 5 according to the invention with three winding pins 11 is shown. The number of winding pins 11 and their arrangement or their alignment with respect to one another depend on the alignment of the rods 3 of the fiber composite component 1.

[0069] During wet winding, the fiber (not shown in the Figures 4 and 5 ) are looped or placed around the winding pins 11. A plate 15 is provided at the distal end of each winding pin 11. The plates 15 prevent the fiber from slipping before the resin cures.

[0070] At the Figure 4 A base plate 17 is formed at the lower end of the winding pin 5.

[0071] Based on the Figure 5 , which shows a section through the winding pin 5 according to Figure 4shows, it is clearly visible that a bore or an internal thread 19 is provided in the base plate 17.

[0072] A screw (not shown) can be screwed into this internal thread 19 in order to screw the winding pin 5 and with it the fiber composite component 1, for example, to the structure 9, as can be seen from the Figure 3 The internal thread 19 can be introduced before or after the assembly of the fiber composite component 1 to the structure 9.

[0073] In the winding pin 5 according to the invention, a compensating sleeve 21 is arranged in the area of ​​the base plate 17. In this embodiment, the compensating sleeve 21 is designed as a separate component. It can be made, for example, from a plastic that is easy to machine.

[0074] The Figure 5The lower end face 7 of the compensating sleeve 21 is its contact surface. The base plate 17 has a shoulder 24 on its underside. The shoulder 24 is used to center and position the compensating sleeve 21 relative to the base plate 17.

[0075] The compensating sleeve 21 can be slid onto the shoulder 24 with a press fit and / or glued to it. This allows the forces occurring during reworking of the compensating sleeve 21 to be transferred to the winding pin 5 without causing any relative movement between the compensating sleeve 21 and the winding pin. This also prevents it from falling off.

[0076] The compensating sleeve 21 projects downwards beyond the base plate 17. This means that the winding pin 5 rests on the upper side 10 of the structure 9 only with the circular contact surface 7 of the compensating sleeve 21 (see e.g. Figure 3 ). The base plate 17 of the winding pin 5 has no direct contact with the structure 9.

[0077] In order to equalize the existing deviations in the position and / or orientation of the contact surface 7, material is removed at the lower end of the compensating sleeve 21, for example by milling, grinding or filing, and in this way the position and / or orientation of the contact surface 7 is changed.

[0078] An alternative solution is to replace the compensating sleeve 21 with a shorter or longer one, if necessary, to compensate for positional deviations. This also changes the position of the contact surface 7.

[0079] If the contact surface 7 of a replaceable compensating sleeve is tilted, the alignment of the contact surface 7 can also be corrected by replacing the compensating sleeve 21. "Tilted" means that the normal vector of the contact surface 7 is not parallel to the longitudinal axis of the compensating sleeve 21.

[0080] It is also possible (not shown in the Figures 4 and 5 ), to form the compensating sleeve 21 as an integral component of the winding pin 5. Then, the compensating sleeve 21 and the winding pin 5 can be manufactured in one piece, for example, by a generative manufacturing process, casting, or plastic injection molding.

[0081] To compensate for the manufacturing-related dimensional deviations or positional deviations of the contact surface 7, a part of the compensating sleeve 21 is then also removed.

[0082] Based on the Figure 5 It is clearly visible that a positioning point 23 is formed at each end of the winding pins 11 in the area of ​​the plate 15. This positioning point 23 can be used to position and / or align the winding pin 5.

[0083] They can also be used for handling the winding pin 5 (when inserting it into a winding device). For example, a suitably designed gripper picks up the winding pin 5 by the positioning tips 23 of the three winding pins 11 and inserts it into a winding device in the desired orientation. With an increasing number of positioning tips 23, both operations can be performed more easily and precisely.

[0084] In the Figure 6 a winding pin 5 is shown in partial section before being inserted into a winding device.

[0085] To ensure that the winding pin 5 can be inserted into and held in a winding device, a tapered roll pin 25 is temporarily inserted at the "lower" end of the winding pin 5. Such roll pins have been used in tool and fixture construction, as well as in furniture construction, for many years and are therefore known to those skilled in the art, so a detailed description will be omitted.

[0086] In connection with the invention, it should be noted that in a winding device (not shown) tensioning means are present which engage in a waist 27 of the clamping pin 25 and hold it in the Figure 6 Pull downwards. This holds and fixes the clamping pin 25 and the winding pin 5 attached to it in the winding device during the winding process and until the resin hardens.

[0087] The clamping devices are then released, and the finished component can be removed from the winding device. The clamping pins 25 are then removed from the winding pins 5.

[0088] As can be seen from the Figure 6 The clamping pin 25 is centered by the compensating sleeve 21. It is temporarily screwed to the winding pin 5 via the internal thread 19 and pulled against the base plate 17 of the winding pin 5. This detachable screw connection is indicated by a dotted line 29 in the Figure 6indicated. Threaded pins are preferably used for this purpose.

[0089] In the Figure 7 A winding device 31 is shown in which three winding pins 5 are inserted. The winding pins are held by clamping pins 25. As can be seen from the cut-out part of the Figure 7 The clamping pin 25 is centered in a receptacle 33 of the winding device 31. The base plate 17 of the winding pin 25 is pulled against the winding device 31 by clamping means 35, which are only shown schematically.

[0090] In an ideal winding device 31, the upper surface 37 is flat or planar, corresponding to the upper surface 10 of the structure 9 to which the not-yet-manufactured fiber component is to be screwed later. Then the contact surfaces 7 of the winding pins would be exactly in the desired location and also correctly aligned.

[0091] The reality, however, is different: Inaccuracies occur in various places, some of which add up. Figure 7 These inaccuracies of the winding device 31 are exaggerated as position and alignment errors. As a result, these position and alignment errors of the winding device 31 lead to the Figure 1 The fiber component 1 shown here, whose contact surfaces 7.1 to 7.3 exhibit the position and alignment errors described above, is shown. For better understanding of the drawings, all position and alignment errors shown result solely from the surface 37 of the winding device 31, whereas the structure 9 has a completely flawless, flat upper surface 10. In reality, however, both surfaces 37 and 10 exhibit deviations from a perfectly flat surface.

[0092] By means of the winding pins 5 according to the invention and the method according to the invention, all position and / or alignment errors can be compensated for as described in detail above. List of reference symbols

[0093] 1Fiber composite component 3Rod 5Winding pin 7Contact surface 9Structure 10Top of the structure 11Winding pin 15Plate 17Base plate 19Internal thread 21Compensating sleeve 23Positioning tip 24Step 25Dowel pin 27Waist 29Dash-dotted line 31Winding device 33Holder

Claims

1. Method for producing fiber composite components, comprising the following method steps: - positioning a plurality of winding pins (5, 5.1 to 5.4), at least one of the winding pins (5, 5.1 to 5.4) having a contact surface (7, 7.1 to 7.3), - laying at least one fiber around the winding pins (5, 5.1 to 5.4) so that they connect two or more winding pins (5, 5.1 to 5.4) together, - curing the resin and characterized by - reworking the at least one contact surface (7, 7.1 to 7.3) to compensate for position and / or alignment deviations after curing.

2. Method according to claim 1, characterized in that the at least one contact surface (7.1, 7.2, 7.3) is reworked by application, removal and / or machining.

3. Method according to claim 1, characterized in that the at least one contact surface (7.1 to 7.3) is reworked by replacing a compensating sleeve (21) with a compensating sleeve that is longer or shorter than the original compensating sleeve (21).

4. Method according to claim 1 or 3, characterized in that the at least one contact surface (7.1 to 7.3) is reworked by replacing a compensating sleeve (21) with a compensating sleeve (21), in which the contact surface (7) is not parallel to a base surface of the compensating sleeve (7).

5. Method according to any of the preceding claims, characterized in that the winding pins (5) are positioned in a winding device before winding and, if necessary, are aligned.

6. Method according to any of the preceding claims, characterized in that the laying of at least one fiber around the winding pins (5, 5.1 to 5.4) comprises winding, braiding and / or knotting.

7. Method according to any of the preceding claims, characterized in that the fiber(s) are impregnated with a (liquid) resin before and / or after the laying process.

8. Winding pin for a fiber composite component, comprising a base plate (17) characterized in that the winding pin comprises a plurality of winding pins (11) and a compensating sleeve (21) arranged on the base plate (17), a bore and / or an internal thread (19) being formed on the base plate (17), and the compensating sleeve (21) having a contact surface (7).

9. Winding pin according to claim 8, characterized in that the number and alignments of the winding pins (11) are adapted to the intended installation location in a fiber composite component (1).

10. Winding pin according to claim 8 or 9, characterized in that a plate (15) is formed at the ends of the winding pin(s) (11).

11. Winding pin according to any of claims 8 to 10, characterized in that a positioning tip (23) is formed on one or more plates (15).

12. Winding pin according to any of claims 8 to 11, characterized in that the compensating sleeve (21) is designed as a separate component.

13. Winding pin according to claim 11, characterized in that means for receiving the compensating sleeve (21) are formed on the base plate (17).

14. Winding pin according to claim 13, characterized in that the means for receiving the compensating sleeve (21) are designed as a shoulder (24).

15. Winding pin according to any of claims 8 to 11, characterized in that the compensating sleeve (21) is an integral component of the base plate (17).

16. Winding pin according to any of claims 8 to 15, characterized in that the base plate (17) is designed as a dihedron or as a regular or irregular polygon.

17. Winding pin according to any of claims 8 to 16, characterized in that the winding pin (5) and / or the compensating sleeve (21) is made of metal or plastics material.