Three-dimensional fiber automatic laying equipment based on curved surface configuration surface

Abstract

The application provides a three-dimensional fiber automatic laying device based on a curved surface configuration plane, and belongs to the technical field of automatic composite forming, wherein the three-dimensional fiber automatic laying device based on the curved surface configuration plane comprises a support frame, a platform assembly, a rotating bearing assembly and a stitching mechanism; a posture adjusting platform is rotationally connected to one side of the support frame through a rotating shaft, a curved surface configuration table is fixed to the posture adjusting platform, and a spherical configuration plane is rotationally assembled to the curved surface configuration table; the rotating bearing assembly comprises a power component, a rotating bracket, a laying head and a fiber reel, the power component is arranged at the top region of the rotating bracket, the rotating bracket is arranged around the top outer side of the stitching mechanism, the laying head is arranged on the side close to the fiber reel, and the fiber reel is close to the top of the support frame; the stitching mechanism comprises a sewing needle, the sewing needle is connected to the rotating bracket, and the sewing needle is located on the side of the laying head. The technical scheme of the application can effectively reduce fiber wrinkles, edge lifting and laying deviation.

Description

Technical Field

[0001] This application relates to the field of automated composite material molding technology, specifically to an automated fiber placement device and molding method for complex curved surface structures. Background Technology

[0002] High-performance composite materials have been widely used in aerospace, rail transportation, automotive industry and high-end equipment manufacturing due to their excellent specific strength, specific stiffness, fatigue resistance and good lightweight properties. In particular, the demand for their application in complex curved surface structures and integrated load-bearing structures is increasing.

[0003] Currently, the laying path of automated fiber laying and prepreg molding technology is difficult to match with the geometric accuracy of curved surfaces, and problems such as fiber wrinkling, local edge curling, and unstable interlayer bonding quality are prone to occur during the laying process. Summary of the Invention

[0004] In view of the technical problems existing in the background art, this application provides a three-dimensional automatic fiber laying device and method based on curved surface configuration surface. The device can improve the accuracy of curved surface forming, as well as the stability between fiber layers and the integrity of the preform structure, and effectively reduce fiber wrinkling, curling and laying deviation.

[0005] To achieve the above objectives, in a first aspect, embodiments of this application provide a three-dimensional automated fiber placement device based on a curved surface configuration surface, comprising: Support frame; The platform component is set on the support frame. The platform component includes an attitude adjustment platform, a curved surface configuration platform, and a spherical configuration surface. The attitude adjustment platform is rotatably connected to one side of the support frame via a rotating shaft. The curved surface configuration platform is fixed to the attitude adjustment platform. The spherical configuration surface is rotatably assembled onto the curved surface configuration platform. A rotating support assembly includes a power component, a rotating bracket, a laying head, and a fiber roll. The power component is located in the top area of ​​the rotating bracket, which is arranged around the top outer side of the sewing mechanism. The laying head is located near the fiber roll, which is close to the top of the support frame. The sewing mechanism includes a sewing needle connected to a rotating bracket, with the sewing needle located on one side of the laying head.

[0006] Furthermore, an attitude adjustment platform is provided on the inner wall of the support frame, and a curved configuration table is fixed to the surface of the attitude adjustment platform. The spherical configuration surface can rotate relative to the curved configuration table.

[0007] Furthermore, the laying head is positioned between the rotating bracket and the fiber roll, with the fiber roll close to the top of the inner wall of the support frame; The sewing needle is located at the bottom of the rotating bracket, on one side of the laying head, and close to the spherical configuration surface.

[0008] Furthermore, the attitude adjustment platform is mounted on the support frame via a pivot pin, and the axial rotation angle range of the attitude adjustment platform is 0° to 90°.

[0009] Furthermore, the rotating bracket is positioned between the power unit and the sewing mechanism.

[0010] Furthermore, the spherical configuration surface is rotatably mounted on the curved configuration platform, and the rotation axis of the spherical configuration surface coincides with its own central axis.

[0011] Furthermore, threaded fasteners are inserted between the laying head and the rotating bracket.

[0012] Furthermore, the fiber roll is positioned between the laying head and the top of the inner wall of the support frame.

[0013] Furthermore, the surface of the spherical configuration is positioned opposite to the tip of the sewing needle.

[0014] Furthermore, the support frame also includes a first moving platform, a second moving platform, a first slide rail, a second slide rail, a base, and a lifting mechanism; The support frame is set on the second moving platform, the second moving platform is connected to the second slide rail, the second slide rail is set on the first moving platform, the first moving platform is connected to the first slide rail, the first slide rail is fixedly installed on the base, and the lifting mechanism is set on both sides of the base.

[0015] The beneficial technical effects of this application are as follows: In the technical solution of this application, pre-impregnated fiber tape is laid onto a spherical surface using a laying head. The rotational movement of the laying head, the rotation of the spherical surface, and the horizontal rotation of the attitude adjustment platform are coordinated. Simultaneously, the sewing mechanism reciprocates under the action of a power component. Finally, the laid fiber layer is sewn and fixed using a sewing needle. The rotational movement of the laying head, the rotation of the spherical surface, and the horizontal rotation of the attitude adjustment platform optimize the precise laying of multi-angle fibers in complex curved areas, improving fiber bonding quality and layup accuracy. This ensures that the fiber laying direction is consistent with the local direction of the curved surface, effectively reducing fiber wrinkling, curling, and laying deviation.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a three-dimensional automatic fiber placement device based on a curved surface configuration surface, as described in an embodiment of this application. Figure 2 This is a schematic diagram of the structure of a rotating bearing component in a three-dimensional automatic fiber placement device based on a curved surface configuration surface according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a platform component in a three-dimensional automated fiber placement device based on a curved surface configuration surface, according to an embodiment of this application. Explanation of reference numerals in the attached figures: 100. Automated 3D fiber placement equipment based on curved surface configuration; 1. Support frame; 2. Platform components; 21. Attitude adjustment platform; 211. Pin shaft; 22. Curved surface configuration platform; 23. Spherical configuration surface; 3. Rotary load-bearing assembly; 31. Power component; 32. Rotary bracket; 321. Threaded fastener; 33. Laying head; 34. Fiber spool; 4. Sewing mechanism; 41. Sewing needle; 5. Base; 51. First moving platform; 52. Second moving platform; 53. First slide rail; 54. Second slide rail; 55. Lifting mechanism. Detailed Implementation

[0019] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0021] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0024] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0025] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] High-performance composite materials have been widely used in aerospace, rail transportation, automotive industry and high-end equipment manufacturing due to their excellent specific strength, specific stiffness, fatigue resistance and good lightweight properties. In particular, the demand for their application in complex curved surface structures and integrated load-bearing structures is increasing.

[0028] Currently, the laying path of automated fiber laying and prepreg molding technology is difficult to match with the geometric accuracy of curved surfaces, and problems such as fiber wrinkling, local edge curling, and unstable interlayer bonding quality are prone to occur during the laying process.

[0029] To address the aforementioned technical problems, this application provides a three-dimensional automatic fiber placement device 100 based on a curved surface configuration surface, comprising a support frame 1, a platform assembly 2, a rotating bearing assembly 3, and a sewing mechanism 4. The platform assembly 2 is disposed on the support frame 1 and includes an attitude adjustment platform 21, a curved surface configuration platform 22, and a spherical configuration surface 23. The attitude adjustment platform 21 is rotatably connected to one side of the support frame 1 via a rotating shaft. The curved surface configuration platform 22 is fixed to the attitude adjustment platform 21, and the spherical configuration surface 23 is rotatably assembled onto the curved surface configuration platform 22. The platform 22; the rotating support assembly 3 includes a power component 31, a rotating bracket 32, a laying head 33, and a fiber spool 34. The power component 31 is located in the top area of ​​the rotating bracket 32, which is arranged around the top outer side of the sewing mechanism 4. The laying head 33 is located near the fiber spool 34, which is close to the top of the support frame 1. The sewing mechanism 4 includes a sewing needle 41, which is connected to the rotating bracket 32 ​​and is located on the side of the laying head 33.

[0030] like Figure 1As shown, in the technical solution of this application, the curved surface configuration platform 22 is fixed on the attitude adjustment platform 21, and the spherical configuration surface 23 is rotatably assembled on the curved surface configuration platform 22, and can rotate continuously 360° around its own central axis. The attitude adjustment platform 21 is installed on the inner wall of the support frame 1, and the attitude adjustment platform 21 can swing around the horizontal axis relative to the support frame 1 to achieve attitude adjustment within a range of 90° in the left and right directions. Through the swinging motion of the attitude adjustment platform 21, different areas of the spherical configuration surface 23 can be adjusted to the laying position. The spherical configuration surface 23 serves as the bearing surface for fiber laying and also as the forming reference surface of the composite material preform. By combining the rotational motion of the spherical configuration surface 23 with the swinging motion of the attitude adjustment platform 21, the position adjustment of most complex curved surface areas can be achieved. The power component 31 is set in the top area of ​​the rotating bracket 32, and the laying head 33 and the fiber roll 34 are connected to the rotating bracket 32. After the power component 31 is started, it outputs power to drive the rotating bracket 32 ​​to rotate. The rotating bracket 32 ​​is controlled by the power component 31, and the discharge direction of the laying head 33 is adjusted synchronously. This ensures that the output angle of the fiber tape matches the curved contour of the spherical configuration surface 23 in real time, maintaining precise contact between the fiber tape and the curved mating area of ​​the spherical configuration surface 23, thus improving the accuracy of curved surface laying and forming. The sewing mechanism 4 is located on the bottom surface of the rotating bracket 32 ​​and includes a sewing needle 41, an iron rod drive assembly, and a thread supply assembly. Driven by the power component 31, the sewing needle 41 performs a reciprocating piercing motion along a preset processing trajectory, penetrating multiple layers of pre-laid fiber material in sequence. The sewing needle 41 carries the thread and shuttles back and forth between the fiber layers, using the interlacing and binding effect of the thread to tightly connect and fix adjacent fiber layers, eliminating gaps, and finally forming a dense, three-dimensional fiber prefabricated structure with strong interlayer bonding.

[0031] In the technical solution of this application, during the fiber tape laying process, the laying head 33 first continuously lays the fiber tape onto the surface of the spherical configuration surface 23; as the three-dimensional automatic fiber laying device 100 based on the curved configuration surface continues to move, the sewing needle 41 located on one side of the laying head 33 immediately punctures and sews the newly laid fiber tape, connecting and fixing the newly laid layer with the underlying fiber layer. Through the synchronous operation of the sewing mechanism 4, laying and sewing are achieved simultaneously, increasing flexibility and accuracy.

[0032] In some embodiments, the inner wall of the support frame 1 is provided with an attitude adjustment platform 21, the curved surface configuration platform 22 is fixed to the surface of the attitude adjustment platform 21, and the spherical configuration surface 23 can rotate relative to the curved surface configuration platform 22.

[0033] like Figure 3As shown, in this embodiment, a rotatable attitude adjustment platform 21 is provided on the inner wall of the support frame 1, and the attitude adjustment platform 21 is close to the bottom surface of the support frame 1. The curved surface is fixed to the attitude adjustment platform 21, and the spherical surface 23 is disposed on the curved surface platform 22 and can rotate relative to the curved surface platform 22. By setting the attitude adjustment platform 21 inside the support frame 1, the space occupied by the whole machine can be effectively reduced, making the structural layout more compact and reasonable. Relying on the function of the curved surface platform 22 being fixed on the attitude adjustment platform 21, the overall stability of the spherical surface 23 during rotational movement can be improved, reducing rotational sway and assembly deviation. At the same time, the attitude adjustment platform 21 can swing around the horizontal axis relative to the support frame 1, and the working angle can be adjusted in real time according to the shape and placement of the curved workpiece and the sewing processing requirements.

[0034] In some embodiments, the laying head 33 is disposed between the rotating bracket 32 ​​and the fiber spool 34, and the fiber spool 34 is close to the top of the inner wall of the support frame 1; the sewing needle 41 is disposed at the bottom of the rotating bracket 32, the sewing needle 41 is located on one side of the laying head 33, and the sewing needle 41 is close to the spherical configuration surface 23.

[0035] like Figure 1 As shown, in this embodiment, the laying head 33 is positioned between the rotating bracket 32 ​​and the fiber roll 34, with the fiber roll 34 adjacent to the top of the inner wall of the support frame 1. The arrangement of the laying head 33, fiber roll 34, and rotating bracket 32 ​​effectively utilizes the unused space above the support frame 1. The high-positioning of the fiber roll 34 effectively reduces movement interference between the fiber strip and the platform assembly 2 below during transport to the laying head 33, ensuring a smooth fiber feeding path and reducing problems such as bending, twisting, and wrinkling of the fiber strip. The sewing needle 41 is positioned at the bottom of the rotating bracket 32, with its entire structure arranged to the side of the laying head 33, and above the spherical configuration surface 23. Because the sewing needle 41 is close to the laying head 33, the fiber strip laying and interlayer sewing processes can be completed simultaneously, shortening the process flow.

[0036] In some embodiments, the attitude adjustment platform 21 is rotatably mounted on the support frame 1 via a pin 211, and the axial rotation angle range of the attitude adjustment platform 21 is 0° to 360°.

[0037] like Figure 3As shown, in this embodiment, the attitude adjustment platform 21 is rotatably mounted on the inner wall of the support frame 1 via a pin 211. The attitude adjustment platform 21 can rotate relative to the support frame 1, with a rotation range of 0° to 360°. The pin 211 allows the attitude adjustment platform 21 to swing, causing the components mounted on the attitude adjustment platform 21 to swing as well. This accurately matches the placement of the workpiece in a locally inclined area on the spherical surface 23, meeting sewing processing requirements. The maximum swing range is constrained by the limiting structure, reducing fiber belt tension caused by exceeding the programmed rotation range.

[0038] In some embodiments, the rotating bracket 32 ​​is disposed between the power member 31 and the sewing mechanism 4.

[0039] like Figure 2 As shown, in this embodiment, the rotating bracket 32 ​​is disposed between the power component 31 and the sewing mechanism 4, serving as an intermediate transition support to achieve the linkage assembly of the two. The rotating bracket 32 ​​connects the bottom end of the power component 31 and the top end of the sewing mechanism 4. The power output by the power component 31 is transmitted to the sewing mechanism 4 via the rotating bracket 32, thereby driving the sewing mechanism 4 to perform up-and-down reciprocating piercing motion on the spherical mating surface.

[0040] In some embodiments, the spherical configuration surface 23 is rotatably disposed on the curved configuration stage 22, and the rotation axis of the spherical configuration surface 23 coincides with its own central axis.

[0041] like Figure 3 As shown, in this embodiment, the spherical configuration surface 23 is disposed on the curved configuration stage 22, and the spherical configuration surface 23 can rotate relative to the curved configuration stage 22 within a range of 0° to 360° with its own vertical central axis as the rotation reference. Relying on the rotation of the spherical configuration surface 23, fiber placement and interlayer stitching operations in the axial orientation of the curved surface can be completed, significantly reducing the multi-angle reciprocating adjustment movements of the actuator. The 0° to 360° full-circumference rotation can continuously cover the arc-shaped processing area of ​​the curved workpiece. Simultaneously, in conjunction with the rotation of the attitude adjustment platform 21, it ensures the smooth operation of multi-angle attitude adjustment placement and synchronous stitching processes, improving processing accuracy.

[0042] In some embodiments, a threaded fastener 321 is provided between the laying head 33 and the rotating bracket 32.

[0043] In this embodiment, the mating part between the laying head 33 and the rotating bracket 32 ​​is provided with a threaded fastener 321. The threaded fastener 321 enables a detachable locking and fixing structure between the laying head 33 and the rotating bracket 32. Firstly, this ensures a firm and reliable connection between the laying head 33 and the rotating bracket 32, maintaining a stable output angle during multi-angle adjustment and continuous laying and sewing operations, reducing problems such as fiber misalignment and decreased sewing accuracy caused by loose connections. Secondly, this structure is easy to assemble and disassemble, facilitating the replacement of the appropriate laying head 33 model according to different curved workpieces and different fiber tape specifications. Simultaneously, the threaded connection accurately controls the assembly gap, reducing the swaying amplitude of the laying head 33.

[0044] It can be noted that the threaded fastener 321 refers to the combination of bolt and nut, which connects the laying head 33 and the rotating bracket 32.

[0045] In some embodiments, the fiber roll 34 is disposed between the laying head 33 and the top of the inner wall of the support frame 1.

[0046] In this embodiment, the fiber roll 34 is positioned between the laying head 33 and the upper end of the inner wall of the support frame 1, and is located in the upper part of the support frame 1. This placement utilizes the unused internal space at the top of the support frame 1, making the overall structure more compact and reducing the external footprint of the three-dimensional automatic fiber laying device 100 based on the curved surface. The high position of the fiber roll 34 ensures a smooth conveying channel for the fiber belt from the fiber roll 34 to the laying head 33, effectively avoiding the presence of components such as the attitude adjustment platform 21, the curved surface configuration table 22, and the spherical configuration surface 23 below, reducing potential problems during processing. Simultaneously, the short fiber belt conveying distance reduces the likelihood of kinking or wrinkling, ensuring stable material laying in the production sequence.

[0047] In some embodiments, the surface of the spherical configuration surface 23 is positioned opposite to the tip of the sewing needle 41.

[0048] like Figure 1As shown, in this embodiment, the surface of the spherical configuration surface 23 and the tip of the sewing needle 41 are arranged directly opposite each other, maintaining a relative positional relationship during movement. This alignment allows the sewing needle 41 to pierce the fiber layup layer on the spherical configuration surface 23 at an angle perpendicular to or adapted to the surface. The needle tip can be precisely aligned with the area to be sewn, avoiding defects such as suture misalignment and fiber layer peeling caused by puncture position deviation. After the fiber strip is laid, it adheres to the surface of the spherical configuration surface 23, with the needle tip aligned with the surface to be processed. The puncture stroke is short and the needle force is controllable, ensuring that the suture fully binds the multiple layers of fibers, improving the interlayer bonding strength, and reducing surface damage caused by excessive pressure of the needle tip on the substrate. At the same time, the spherical configuration surface 23 can rotate from 0° to 360° relative to the curved configuration platform 22. For different orientations, the needle tip can be stably aligned with the spherical layup to complete the sewing, ensuring uniform sewing throughout the spherical surface and effectively improving the overall molding quality of the three-dimensional fiber preform.

[0049] In some embodiments, the support frame 1 further includes a first moving platform 51, a second moving platform 52, a first slide rail 53, a second slide rail 54, a base 5, and a lifting mechanism 55; the support frame 1 is disposed on the second moving platform 52, the second moving platform 52 is connected to the second slide rail 54, the second slide rail 54 is disposed on the first moving platform 51, the first moving platform 51 is connected to the first slide rail 53, the first slide rail 53 is fixedly installed on the base 5, and the lifting mechanism 55 is disposed on both sides of the base 5.

[0050] like Figure 1As shown, in this embodiment, the base 5 is the installation foundation and support platform of the three-dimensional automatic fiber laying device 100 based on the curved surface configuration surface. The first slide rail 53 is fixedly installed on the base 5, and the first moving platform 51 is slidably connected to the first slide rail 53 and can move linearly along the first direction. The second slide rail 54 is installed above the second moving platform 52, and the second moving platform is limited to the above embodiment. The above embodiment is only an example. Embodiments with the same structure and the same effect as the technical concept are included in the technical scope of this application. In addition, without departing from the spirit of this application, the moving platform 52 is slidably connected to the second slide rail 54 and can move linearly along the second direction perpendicular to the first direction. The support frame 1 is installed above the second moving platform 52. Through the linkage control of the first moving platform 51 and the second moving platform 52, the platform component 2 can be adjusted in position in the horizontal plane, so that the area to be processed can be accurately moved to the laying position. The lifting mechanism 55 is arranged on both sides of the base 5 and is arranged in the vertical direction, and can also move up and down in the vertical direction. Through the movement of the lifting mechanism 55, the axial movement of the attitude adjustment platform 21, and the rotation of the spherical configuration surface 23, any area of ​​the spherical configuration surface 23 can be adjusted to the position to be processed, enabling the laying of fiber trajectories in different directions and angles for complex curved surface structures. It is suitable for process requirements such as warp laying, weft laying, spiral laying, and variable angle laying.

[0051] It should be noted that this application includes various modifications that can be conceived by those skilled in the art, as well as other ways of constructing a part of the components of the implementation method.

Claims

1. A three-dimensional automated fiber placement device based on a curved surface configuration surface, characterized in that, include: Support frame; A platform component is disposed on the support frame. The platform component includes an attitude adjustment platform, a curved surface configuration platform, and a spherical configuration surface. The attitude adjustment platform is rotatably connected to one side of the support frame via a pin. The curved surface configuration platform is fixed to the attitude adjustment platform. The spherical configuration surface is rotatably assembled to the curved surface configuration platform. A rotating support assembly includes a power component, a rotating bracket, a laying head, and a fiber spool. The power component is located in the top region of the rotating bracket, which is arranged around the top outer side of the sewing mechanism. The laying head is located near the fiber spool, which is close to the top of the support frame. A sewing mechanism includes a sewing needle connected to the rotating bracket and located on one side of the laying head.

2. The three-dimensional automatic fiber placement device based on curved surface configuration according to claim 1, characterized in that, The attitude adjustment platform is provided on the inner side wall of the support frame, the curved surface configuration platform is fixed to the surface of the attitude adjustment platform, and the spherical configuration surface can rotate relative to the curved surface configuration platform.

3. The three-dimensional automatic fiber placement device based on curved surface configuration according to claim 1, characterized in that, The laying head is positioned between the rotating bracket and the fiber roll, with the fiber roll close to the top of the inner wall of the support frame; The sewing needle is located at the bottom of the rotating bracket, on one side of the laying head, and close to the spherical configuration surface.

4. The three-dimensional automatic fiber placement device based on curved surface configuration according to claim 2, characterized in that, The attitude adjustment platform is rotatably mounted on the support frame via a pin, and the axial rotation angle range of the attitude adjustment platform is 0° to 90°.

5. The three-dimensional automatic fiber placement device based on a curved surface configuration surface according to claim 3, characterized in that, The rotating bracket is disposed between the power component and the sewing mechanism.

6. The three-dimensional automatic fiber placement device based on curved surface configuration according to claim 1, characterized in that, The spherical configuration surface is rotatably mounted on the curved configuration platform, and the rotation axis of the spherical configuration surface coincides with its own central axis.

7. The three-dimensional automatic fiber placement device based on curved surface configuration according to claim 2, characterized in that, A threaded fastener is inserted between the laying head and the rotating bracket.

8. The three-dimensional automatic fiber placement device based on curved surface configuration according to claim 7, characterized in that, The fiber roll is positioned between the laying head and the top of the inner wall of the support frame.

9. The three-dimensional automatic fiber placement device based on curved surface configuration according to claim 1, characterized in that, The surface of the spherical configuration is positioned opposite to the tip of the sewing needle.

10. The three-dimensional automatic fiber placement device based on curved surface configuration according to claim 1, characterized in that, The support frame also includes a first moving platform, a second moving platform, a first slide rail, a second slide rail, a base, and a lifting mechanism; The support frame is disposed on the second moving platform, the second moving platform is connected to the second slide rail, the second slide rail is disposed on the first moving platform, the first moving platform is connected to the first slide rail, the first slide rail is fixedly installed on the base, and the lifting mechanism is disposed on both sides of the base.

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