Plant for producing fiber-reinforced components

Abstract

The present invention relates to a device (10) for manufacturing a fiber-reinforced component (1) according to a three-dimensional winding method, the device comprising at least one computer-controlled winding machine, which is used to wind at least one fiber support (11) arranged on a rotating shaft (16) using a linear continuous fiber strip provided on at least one reel (18) in at least one winding pattern, wherein the at least one winding machine is a robot arm (13) with multiple rotation axes, which simultaneously lays at least two fiber strips (12), wherein at least one robot arm (13) is used to simultaneously lay the at least two fiber strips (12) in a distributed manner on at least two fiber supports (11) respectively arranged on separate rotating shafts (16) and / or to simultaneously lay at least two fiber strips (12) on only one fiber support (1) arranged on a separate rotating shaft (16).

Description

Technical Field

[0001] The invention relates to a device for producing a fiber-reinforced component according to a three-dimensional winding method, wherein the device comprises at least one computer-controlled winding machine for winding at least one fiber support arranged on a rotating shaft with a linear continuous fiber strip provided on at least one winding shaft in at least one winding pattern. In addition, the invention also relates to a method for producing a winding pattern on a fiber support. Background Art

[0002] Document DE 10 2017 222 479 A1 discloses a device for producing a fiber-reinforced component according to a three-dimensional winding method and a method for producing a winding pattern on a fiber support. Thus, document DE 10 2017 222 479 A1 describes a robot with which a yarn made of a fiber composite material is wound onto a core in order to construct a component. In this case, the core is received on a robot arm, wherein the core is guided by the robot arm during the winding with the yarn or the core is received on a shaft, wherein the yarn is guided by the robot arm in order to wind the core with the yarn.

[0003] Document DE 10 2017 005 754 A1 describes a device for manufacturing fiber-reinforced components according to a three-dimensional winding method. The three-dimensionally movable winder is centrally positioned in an annular holder, wherein a plurality of rotatable plate-shaped support elements are fixed along the circumference of the holder so as to be equipped with a fiber support from the outside. The fiber support faces the winder after being equipped. A reel unit with a continuous fiber strip is fixed to the winder, wherein the head of the winder is used to guide the continuous fiber strip and to three-dimensionally wind the fiber support with the continuous fiber strip. The winding of the fiber support is gradually carried out according to the annular arrangement of the support elements equipped with the fiber support.

[0004] No. 6,096,164 A1 discloses a device comprising at least one computer-controlled winder for winding at least one fiber support arranged on a rotating shaft with a linear continuous fiber strip provided on at least one winding shaft in at least one winding pattern. Summary of the invention

[0005] Starting from the prior art described above, the object of the present invention is to improve a device for producing fiber-reinforced components according to a three-dimensional winding method and a method for producing a winding pattern on a fiber support so that the device and the method are characterized by higher efficiency when producing fiber-reinforced components.

[0006] From the perspective of device technology, this object is achieved by the device to be protected by the present invention. From the perspective of method technology, this object is achieved by the method to be protected by the present invention. Accordingly, advantageous improvements of the present invention are given immediately below.

[0007] According to the present invention, a device for manufacturing fiber-reinforced components according to a three-dimensional winding method is proposed, wherein the device includes at least one computer-controlled winding machine, which is used to use a linear continuous fiber strip provided on at least one reel to wind a fiber support arranged on a rotating shaft in at least one winding pattern. According to the present invention, the at least one winding machine is a robot arm with multiple rotating axes, and the robot arm simultaneously lays at least two fiber strips, wherein at least one robot arm is used to simultaneously lay at least two fiber strips on at least two fiber supports respectively arranged on separate rotating axes and / or to simultaneously lay at least two fiber strips on only one fiber support arranged on a separate rotating axis. The at least one winding machine is a robot arm with six rotating axes. In particular, the corresponding rotating axis forms the seventh axis of the device, and the corresponding fiber support rotates around the seventh axis when the yarn is laid. Thereby, the number of components to be manufactured simultaneously can be increased or the manufacturing duration of a single component can be reduced. When two or more fiber strands are laid simultaneously and in parallel on the corresponding fiber supports, the production speed can be doubled by combining the parallel winding of two or more fiber supports. The multi-dimensional parallelization of the production process can increase the production speed as a product of the number M of fiber supports and the number of fiber strands to be laid.

[0008] In this case, the device can have at least one device for maintaining a predeterminable fiber strip tension independently of the conveying direction of the respective fiber strip between the reel and the fiber support. With the aid of the device, a predeterminable fiber strip tension of the respective fiber strip can be maintained not only during unwinding, i.e., when conveying the respective fiber strip, but also during rewinding, i.e., when rewinding the excess fiber strip that was pulled out.

[0009] For this purpose, the at least one device can include at least one electronically regulated synchronous motor, which drives the reel. Synchronous motors are advantageously suitable for applications in which a stable rotational speed is required that is independent of the load, as is the case when maintaining the tension of the fiber strip. In addition, the synchronous motor enables a compact and efficient design of the device for maintaining the tension of the fiber strip, which is reflected in the gross weight of the at least one device. Each reel is driven by an electronically regulated synchronous motor.

[0010] In particular, the at least one device can include at least one sensor unit for detecting the fiber strip tension and at least one computing unit for controlling at least one synchronous motor according to the detected fiber strip tension. The at least one sensor unit preferably operates contactlessly in order to minimize the influence on the fiber strip tension to be detected.

[0011] According to a preferred embodiment, the at least one device for maintaining the tension of the fiber strip can be connected to a receiving unit for receiving at least one reel. At least one reel carrying the fiber strip to be unwound can be arranged on the receiving unit. Preferably, the reel is connected to the synchronous motor in a force-locking manner. It is particularly preferred that two or more reels can be arranged on the receiving unit, and the reels are respectively connected to the corresponding driven synchronous motors in a force-locking manner. As a result, the number of fiber-reinforced components to be manufactured simultaneously can be increased accordingly. The control of the synchronous motors on the receiving unit can be carried out by a common computing unit. As an alternative, each of the synchronous motors can be controlled by a separate computing unit.

[0012] In particular, the at least one reel can be arranged at a distance from the at least one robot arm. This arrangement has the advantage that the at least one reel arranged at a distance in space relative to the robot arm does not form an additional mass that should be carried by the robot arm. In the case of external material storage, the robot arm only carries a laying unit with which the fiber strip is guided during winding and laying on the fiber support. With the at least one reel, the at least one device for maintaining the tension of the fiber strip together with the accommodation unit for accommodating the at least one reel are also arranged at a distance from the robot arm accordingly.

[0013] According to an alternative embodiment, the at least one reel can be arranged on at least one robot arm. This arrangement has the advantage that the free yarn length, that is, the distance between the reel and the fiber support, is kept small and a higher movement speed of the robot arm is achieved. In this case, not only the at least one device for maintaining the tension of the fiber strip but also the at least one reel are driven directly on the machine hand head, that is, on the free end of the robot arm.

[0014] According to another alternative embodiment, the rotation axis can be arranged on the robot arm, and the fiber support is arranged on the rotation axis. According to this arrangement, an external material storage is provided, for which, in addition to at least one reel, the at least one device for maintaining the tension of the fiber strip together with the receiving unit are also arranged spatially spaced apart from the robot arm.

[0015] In particular, in order to transport the corresponding fiber strips in a substantially low-friction manner, at least one guide eye can be arranged on the at least one robot arm. This is important when transporting the fiber strips, because the fiber strips are pre-impregnated linear semi-finished products, such as filament impregnated semi-finished products, Yampreg semi-finished products, single-belt semi-finished products or pre-impregnated semi-finished products. Pre-impregnated semi-finished products are used because winding speeds that are up to 10 times higher can be achieved compared to conventional wet winding methods. Due to the viscosity of the pre-impregnated fiber strips and the use of a three-dimensional winding method and the rotation of the component around the rotation axis, a curved winding surface can be produced outside the geodetic lines of the component.

[0016] According to a preferred improvement, at least two fiber supports can be arranged substantially parallel to each other on a separate rotating shaft. For this purpose, a bogie can be provided, which comprises at least two driven rotating shafts, on which a fiber support is arranged respectively. Here, multiple parallel rotating shafts controlled in the same manner can be operated, on which a fiber support is arranged respectively and the fiber support can rotate around its winding shaft. All parallel rotating shafts rotate synchronously or almost synchronously, so that all rotating shafts on the bogie can be triggered simultaneously with a control command. The accommodating unit of the bearing reel can respectively have a device for maintaining the tension of the fiber strip in order to control the corresponding synchronous motor.

[0017] Under the premise that the winding shafts are synchronized smoothly and the influence of external disturbances, such as geometric deviations of the component to be manufactured or the same unwinding state, i.e. the diameter of the winding shaft, etc., is limited, a simplified arrangement can be realized in which the receiving unit carrying the winding shaft is used together with only one device for maintaining the fiber strip tension for the winding shaft. The synchronous motor can be adjusted by just one device for maintaining the fiber strip tension.

[0018] Particularly advantageous is a design scheme of a combination of a reel assembly and a fiber support assembly for manufacturing a fiber-reinforced component. Therefore, the reel assembly can be arranged so that a plurality of reels are arranged in a matrix on a receiving unit, that is, at least two reels are arranged side by side in a row and at least two reels are arranged up and down in a column, wherein fiber strips are extracted in a parallel manner from the reels in a row respectively. The fiber support assembly can have at least two fiber supports to be wound, and the fiber supports are arranged on at least two rotating shafts arranged parallel to each other. Corresponding parallelized fiber strips are transported to the corresponding fiber supports from the corresponding reels arranged in a row. Thus, the multi-dimensional parallelization of the manufacturing process can be realized, and the manufacturing speed can be improved by the degree of the product of the number of fiber supports and the number of fiber strips through the manufacturing process.

[0019] In particular, two robotic arms can be arranged opposite to each other, and the two robotic arms are used to respectively lay at least one fiber strip in opposite directions on a fiber support arranged on a rotating shaft between the two robotic arms. The so-called "opposite laying" means that the corresponding fiber strips are simultaneously laid on the fiber support arranged on the rotating shaft in a mirror-symmetrical or reverse manner with respect to the axis of symmetry of the fiber support. Here, the axis of symmetry of the fiber support should coincide with the axis of rotation. In order to improve efficiency, two robotic arms opposite to each other can be used to respectively lay two or more fiber strips in opposite directions on a fiber support arranged on a rotating shaft between the two robotic arms.

[0020] It is also conceivable that two fiber supports can be arranged side by side on a common rotation axis. Here, at least two parallelized fiber strips can be laid in a distributed manner on two fiber supports arranged on the rotation axis between the robot arms.

[0021] Furthermore, the object stated at the outset is achieved by a method.

[0022] According to the method, a method for producing a winding pattern on a fiber support using a device as described above is provided, wherein an even number of parallelized fiber strands, but at least two fiber strands, are wound onto at least one fiber support using the device.

[0023] To this end, it can be provided that a pre-settable fiber strip tension is maintained during the winding process, independently of the fiber conveying direction of the fiber strip between the reel and the fiber support. By means of the device for maintaining the fiber strip tension, a pre-set fiber strip tension of the corresponding fiber strip can be maintained not only during unwinding, that is, when conveying the corresponding fiber strip, but also during rewinding, that is, when rewinding the overdrawn fiber strip. To this end, the at least one device can include at least one electronically regulated synchronous motor, which drives the reel from which the fiber strip is drawn. In order to control the at least one synchronous motor, the fiber strip tension is detected by means of a sensor unit and evaluated by a computing unit of the at least one device, so as to control the synchronous motor according to the fiber strip tension.

[0024] In particular, when laying the fiber strips in a distributed and parallel manner on fiber supports arranged parallel to each other, the two rotation axes of at least one mechanical arm having multiple rotation axes can be controlled in such a way that the two rotation axes run at a constant angle during the entire winding process. Here, two or more fiber strips are pulled out from reels arranged parallel to each other on a receiving unit, and the fiber supports arranged parallel to each other are wound with the fiber strips. In order to ensure that all the pulled-out fiber strips run precisely in parallel, have the same length or the same spacing between the fiber supports and the corresponding reels, and arrive at the same point on the fiber supports, the movement characteristics of the mechanical arm are limited. In particular, the at least one mechanical arm has six rotation axes.

[0025] By means of the device according to the invention and the method according to the invention, in particular fiber-reinforced components for the chassis of a vehicle can be produced. In particular, components with a defined load flow that is as constant as possible can be produced by the device or the method, wherein the load flow is limited to a few dominant load directions. For example, all types of multi-point, two-point, three-point, four-point or five-point control arms can be produced by this method. Functional components with minimal mass and simultaneously high strength and rigidity values ​​are produced. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The advantageous embodiments of the invention explained below are shown in the drawings. The drawings show:

[0027] Figure 1a-1e is a schematic diagram of a fiber-reinforced component configured as a multi-point guide rod;

[0028] Figure 2 is a schematic diagram of an apparatus for producing a fiber-reinforced component according to a three-dimensional winding method;

[0029] Figure 3According to another embodiment, according to Figure 2 A schematic diagram of the device;

[0030] Figure 4 According to the third implementation method, Figure 2 A schematic diagram of the device;

[0031] Figure 5 is a schematic diagram of an apparatus for laying two fiber strips on two fiber supports in parallel;

[0032] Figure 6 is in accordance with Figure 5 A schematic diagram of an improved solution of the device;

[0033] Figure 7 is a schematic diagram of an apparatus for laying two fiber strips in parallel on a fiber support; and

[0034] Figure 8 is a schematic diagram of a device for the parallel laying of two fiber strands on a fiber support according to another embodiment.

[0035] In the following, identical components or assemblies or components having the same function are provided with the same reference numerals. DETAILED DESCRIPTION

[0036] exist Figures 1a to 1e A schematic diagram of a fiber-reinforced component 1 constructed as a multi-point guide rod is shown in FIG. Figure 1a A chassis structural component 1 designed as a two-point link is shown. The chassis structural component 1 comprises a body 2 having at least two load introduction areas 4, which are connected to one another via connecting structures 3. The connecting structures 3 of the body 2 can in particular be hollow profiles. The body 2 essentially determines the basic shape of the vehicle structural component 1. Figures 1b to 1c Two variants of a chassis structural component 1 designed as a three-point linkage are shown by way of example. Figures 1d to 1e , a chassis structural component 1 constructed as a four-point guide rod or a five-point guide rod is shown as an example. The chassis structural component 1 constructed as a multi-point guide rod can connect the movement points in the chassis and / or the wheel suspension and transmit movement and / or force. Here, the connection of the multi-point guide rod to other components of the chassis can be realized by means of a joint arranged in the load introduction area 4. These components 1 have a clear and basically constant load flow due to the symmetry of their shape and the arrangement of the load introduction area 4, which is limited to a few dominant load directions. The manufacture of such a component 1 as a fiber-reinforced component is carried out by means of a three-dimensional winding method, which allows the manufacture of functional components with minimal mass and simultaneously high strength and rigidity values.

[0037] In the following, various embodiments of a device 10 for producing such a fiber-reinforced component 1 according to a three-dimensional winding method and a method for producing a winding pattern on a fiber support 11 using such a device 10 are described.

[0038] FIG. 1 schematically shows a device 10 for manufacturing a fiber-reinforced component 1 according to a three-dimensional winding method. The fiber support 11 forms the core element of the component 1, wherein the fiber support 11 is made of a foam material, which is wound with at least one linear continuous fiber strip 12 (hereinafter referred to as fiber strip) made of a fiber synthetic composite material. The fiber support 11 is basically pre-set with the contour of the component to be manufactured, but does not perform a load-bearing function. The diagram shows the fiber support 11 together with the joint element already arranged thereon and located in the load introduction area 4. The laying is carried out in one or more different winding patterns, wherein each winding pattern is assigned a specific task that affects one or more mechanical properties of the component 1.

[0039] The device 10 includes at least one computer-controlled winding machine, which is a mechanical arm 13 with six rotation axes. A control unit 14 is provided to control at least one mechanical arm 13, which communicates with the mechanical arm 13 via a signal line or a bus system 15. The fiber support 11 is arranged on the driven rotating shaft 16 of the bogie 7, and the at least one fiber strip 12 is wound onto the fiber support in at least one winding pattern that can be preset by the control unit 14. The drive of the rotating shaft 16 can also be controlled by the control unit 14 via the bus system 15. The rotating shaft 16 of the bogie forms the seventh rotating shaft of the device 10. The at least one fiber strip 12 is provided on at least one reel 18. The reel 18 is arranged at a distance from the mechanical arm 13 in space.

[0040] In addition, the device 10 includes at least one device 19 for maintaining a pre-settable fiber strip tension. The corresponding device 19 includes a drive motor, a calculation unit 21 and at least one sensor unit 22 for detecting the fiber strip tension. The reel 18 is arranged on a shaft 23 so as to be non-rotatable relative to each other, and the shaft is driven by a drive motor of a synchronous motor 20 configured as an electronic regulation. The fiber strip 12 drawn from the reel 18 is transported to the fiber support 11 via a yarn guide eye 24 arranged on the robot arm 13 in a substantially frictionless manner. In order to monitor the fiber strip tension, at least one sensor unit 22 is arranged along the free path between the unwinding point of the at least one fiber strip 12 on the reel 18 and the laying point on the fiber support 11.

[0041] The calculation unit 21 is used to evaluate the signal of at least one sensor unit 22 and to control at least one synchronous motor 20 according to the detected fiber strip tension. The at least one synchronous motor 20 is controlled by the calculation unit 21, which allows the fiber strip tension that can be preset to be maintained. This is necessary in order to avoid the elongation or shortening of the fiber strip 12 caused by the movement of the robot arm 13. To this end, the control unit 14 of the robot arm 13 can be connected to the calculation unit 21 via the bus system 15 so as to transmit the movement distribution of the robot arm 13 with six rotation axes to the calculation unit 21. As a result, the following accuracy can be improved, with which the fiber strip tension is maintained by controlling the synchronous motor 20. The reel 18 driven by the synchronous motor 20 can be operated in such a way that the fiber strip 12 can be alternately unwound and rewound by changing the direction of rotation.

[0042] Figure 3 The diagram in FIG. 1 schematically shows the Figure 2 Another embodiment of the device 10 is shown. This embodiment of the device 10 differs from the previously described embodiment in the deviated positioning of the at least one reel 18 and the device 19 for maintaining a pre-settable fiber strip tension of at least one fiber strip 12. The reel 18 and the device 19 are arranged on the head 25 of the robot arm 13 and driven by it. The advantage of this arrangement is the shorter free stroke length of the fiber strip 12, which simplifies the control of the synchronous motor 20. In addition, the movement speed of the robot arm 13 can be increased thereby.

[0043] exist Figure 4 The schematic diagram shows the Figure 2 A third embodiment of the device 10 is shown. In contrast to the previously described embodiments of the device 10, the rotation axis 16 is arranged on the head 25 of the robot arm 13, and the at least one fiber support 11 is rotatably arranged on the rotation axis 16. The reel 18 and the device 19 for maintaining the tension of the fiber strip are arranged at a distance from the robot arm 13 in space.

[0044] In accordance with Figure 2 and Figure 3 In an embodiment, at least one fiber strip 12 is guided by a robot arm 13 and the at least one fiber support 11 to be wound is arranged on at least one driven rotating shaft 16 of the bogie, and according to this Figure 4 In the third embodiment shown in FIG. 1 , the fiber support 11 is guided by a robot arm 13 .

[0045] Figure 5The device 10 for parallelizing the laying of two fiber strands 12 on two fiber supports 11 is schematically shown. By laying the fiber strands M-fold parallelized on a plurality of parallel oriented fiber supports 11, the efficiency of the method for producing a winding pattern on the fiber supports 11 and thus the efficiency of the production of the component 1 is increased. The device 10 is based on Figure 3 The embodiment described. A receiving unit 26 is arranged on the head 25 of the robot arm 13, which is used to vertically receive two or more reels 18 up and down. Here, according to the number of the reels 18, two or more devices 19 as described above for maintaining the fiber strip tension are connected to the receiving unit 26. Each device 19 is used to maintain the fiber strip tension of the corresponding fiber strip 12 drawn from the reel 18. The bogie 17 includes two or more driven rotating shafts 16 according to the number of reels 18 arranged up and down in a row, and a fiber support 11 is arranged on each of the rotating shafts. Here, the control unit 14 controls the driving device of the rotating shaft 16 (the rotating shaft 16 forms the seventh rotating shaft of the device 10) in such a way that the rotating shafts 16 parallel to each other of the bogie are operated in the same way. The computing unit 21 of the device 19 controls the synchronous motor 20 of the drive shaft 23 in such a way that the fiber strip conveying process is also carried out in the same way from the reels 18 held in parallel by the receiving unit 26. Preferably, all rotation axes 16 or shafts 23 oriented parallel to one another can rotate synchronously, so that all rotation axes 16 or shafts 23 can be activated simultaneously by a control command.

[0046] Figure 6 The diagram in FIG. 1 schematically shows the Figure 5 An improvement of the device 10 shown. If, during the transport of the fiber strip, a smooth synchronization of the rotating shaft 16 can be achieved by its own control, a simplification of the structure of the device 10 can be achieved. In addition, when realizing this improvement of the device 10, it should be possible to achieve a limitation of the influence caused by external interferences, such as, for example, geometric deviations, a substantially identical unwinding state, that is, a substantially identical diameter of the reel 18, etc. Taking into account at least one of these prerequisites, a simplified design of the device 10 can be that the device can be operated with only one device 19, but with two or more synchronous motors 20 for driving the reel 18.

[0047] Used in Figure 5 and Figure 6The device 10 shown in FIG. 1 can implement parallel production of a plurality of components 1, M in number, with only one robot arm 13 in the same total production time. The production time of each component 1 can be reduced to the Mth part of the total time.

[0048] Figure 7 A schematic diagram of an embodiment of the device 10 is shown, which is used to lay two fiber strips 12 on a separate fiber support 11 in parallel. The accommodating unit 26 carries at least two reels 18 arranged side by side in a horizontal row. Here, the laying of the fiber strips 12 is carried out on almost parallel laying surfaces, that is, with a small spatial offset of each fiber strip 12 according to the corresponding winding pattern to be generated. The entire component 1 is usually composed of different winding patterns, which are in turn constructed by multiple parallel fiber strips (winding tracks). As a result, the basic design principle of these three-dimensional wound components 1 is very suitable for the parallelization of fiber strips 12. Here, two or more fiber strips 12 can be laid in parallel on a separate fiber support 11 with a small spatial spacing by a corresponding number of devices 19 for maintaining fiber strip tension. As a result, it is possible to use x parallel fiber strips 12 to produce corresponding winding patterns through x / N winding tracks (Wickelorbit).

[0049] Especially through Figure 5 or Figure 6 The embodiment shown in Figure 7 The combination of the embodiments shown in can realize a multi-dimensional parallelization of the production process, by which the production rate can be increased by the product of the number of fiber supports 11 and the number of fiber strips 12 .

[0050] Figure 8A device 10 according to another embodiment is schematically shown, which is used to lay two fiber strips 12 on a separate fiber support 11 in parallel. Two mechanical arms 13 are provided here, which simultaneously wind at least one fiber strip 12 onto a fiber support 11 arranged on a bogie 17. The two mechanical arms 13 are arranged opposite to each other, so that the bogie 17 is located between them. The control unit 14 is used to control the two mechanical arms 13 so as to lay at least one fiber strip 12 on the fiber support 11 arranged on the rotating shaft 16 between the two mechanical arms 13 in the opposite direction. The so-called "opposite laying on the fiber support 11" means that the corresponding fiber strips 12 are laid on the fiber support 11 arranged on the rotating shaft 16 in a mirror-symmetrical or reverse manner with respect to the symmetry axis of the fiber support. Therefore, in the illustrated embodiment, the fiber support 11 is wound for a component 1 constructed as a four-point guide rod. Here, for example, two load introduction areas 4 opposite to each other are wound at the same time. This also applies to the body 2 of the component 1 accordingly. This embodiment can also be improved by arranging a receiving unit 26 for receiving two or more reels 18 on the head 25 of the robot arm 13. The laying of two or more fiber strips 12 by the corresponding robot arm 13 is performed here by means of a corresponding exemplified method. Figure 7 The process is performed in parallel as described in the embodiment of the present invention.

[0051] List of reference numerals:

[0052] 1 Component

[0053] 2 body

[0054] 3 Connection structure

[0055] 4 Load introduction area

[0056] 10. Equipment

[0057] 11 Fiber scaffold

[0058] 12 Fiber Strips

[0059] 13 Robotic Arm

[0060] 14 Control Unit

[0061] 15 Bus system

[0062] 16 Rotation axis

[0063] 17 Bogie

[0064] 18 Scroll

[0065] 19 Device for maintaining the tension of the fiber strip

[0066] 20 Synchronous motor

[0067] 21 Computational Units

[0068] 22 Sensor unit

[0069] 23 Axis

[0070] 24 Yarn guide eye

[0071] 25 Head of robot arm 13

[0072] 26 accommodation units.

Claims

1. A device (10) for producing a fiber-reinforced component (1) according to a three-dimensional winding method, the device comprising at least one computer-controlled winding machine for winding at least one fiber support (11) arranged on a rotating shaft (16) with a linear continuous fiber strip (12) provided on at least one winding shaft (18) in at least one winding pattern, characterized in that The at least one winding machine is a robot arm (13) with six rotating axes, which simultaneously lays at least two fiber strips (12), wherein at least one robot arm (13) is used to simultaneously and distributedly lay at least two fiber strips (12) on at least two fiber supports (11) respectively arranged on separate rotating axes (16).

2. The device (10) according to claim 1, characterized in that The device (10) has at least one device (19) for maintaining a predeterminable fiber strand tension independently of the conveying direction of the respective fiber strand (12) between the winding shaft (18) and the fiber support (11).

3. The device (10) according to claim 2, characterized in that The at least one device (19) comprises at least one electronically regulated synchronous motor (20) which drives the winding shaft (18).

4. The device (10) according to claim 2, characterized in that The at least one device (19) comprises at least one sensor unit (22) for detecting the tension of the fiber strip and at least one calculation unit (21) for controlling the at least one synchronous motor (20) according to the detected fiber strip tension.

5. The device (10) according to claim 3, characterized in that The at least one device (19) comprises at least one sensor unit (22) for detecting the tension of the fiber strip and at least one calculation unit (21) for controlling the at least one synchronous motor (20) according to the detected fiber strip tension.

6. The device (10) according to any one of claims 2 to 5, characterized in that The at least one device (19) for maintaining the tension of the fiber strand is connected to a receiving unit (26) for receiving at least one winding shaft (18).

7. The device (10) according to any one of claims 1 to 5, characterized in that The at least one reel (18) is arranged at a distance from the at least one robot arm (13).

8. The device (10) according to any one of claims 1 to 5, characterized in that The at least one reel (18) is arranged on the at least one robot arm (13).

9. The device (10) according to any one of claims 1 to 5, characterized in that The rotating shaft (16) is arranged on the mechanical arm (13), and the fiber support (11) is arranged on the rotating shaft.

10. The device (10) according to any one of claims 1 to 5, characterized in that In order to transport the respective fiber strip essentially without friction, at least one thread guide eye (24) is arranged on the at least one robot arm (13).

11. The device (10) according to any one of claims 1 to 5, characterized in that At least two fiber supports (11) are arranged substantially parallel to one another on separate rotation axes (16).

12. The device (10) according to any one of claims 1 to 5, characterized in that Two robot arms (13) are arranged opposite to each other and are used to respectively lay at least one fiber strip (12) in opposite directions on a fiber support (11) arranged on a rotation axis (16) between the two robot arms (13).

13. The device (10) according to claim 12, characterized in that The two fiber supports (11) are arranged next to one another on a common rotation axis (16).

14. A method for producing a winding pattern on a fiber support (11) using a device (10) according to any one of claims 1 to 13, characterized in that The device (10) is used to wind an even number of parallelized fiber strands (12), but at least two fiber strands (12), onto at least one fiber support (11).

15. The method according to claim 14, characterized in that During the winding process, a predeterminable fiber strand tension is maintained independently of the fiber transport direction of the fiber strand (12) between the winding shaft (18) and the fiber support (11).

16. The method according to claim 14 or 15, characterized in that When laying fiber strips (12) in a distributed and parallel manner on fiber supports (11) arranged parallel to one another, two rotation axes of at least one robot arm (13) having multiple rotation axes are controlled so that the two rotation axes run at a constant angle during the entire winding process.

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