Forming tool for pneumatic shape fiber placement process of unmanned aerial vehicle

Abstract

The utility model relates to the technical field of forming tools, and discloses an unmanned aerial vehicle aerodynamic configuration fiber placement process forming tool which comprises a mold body, a feeding area is arranged on the mold body, and automatic fiber placement equipment performs fiber placement on the mold body to form an unmanned aerial vehicle model; the positioning assembly comprises a plurality of positioning pieces, the positioning pieces are arranged at the top end of the mold body in the circumferential direction, and the positioning pieces are used for positioning the automatic fiber placement equipment; the temperature measuring assembly is arranged on the mold body and used for monitoring the temperature of the mold body; and the adjusting assembly comprises a plurality of adjusting pieces, the adjusting pieces are arranged at the bottom end of the mold body in the circumferential direction, and the adjusting pieces are used for adjusting the levelness of the mold body. According to the utility model, paving precision and product quality are ensured, and overall processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of forming tooling, in particular to a forming tooling for a pneumatic shape of an unmanned aerial vehicle by a wire laying process. Background Art

[0002] With the growing demand for carbon fiber parts in the aerospace and rail transit markets, as well as the aerospace sector’s demand for high-quality, high-stability products, it has become an inevitable trend to use automatic fiber placement technology to produce high-quality, high-stability products.

[0003] The automatic fiber placement process is an efficient, precise and automated composite material manufacturing process in the field of composite materials. It uses mechanical equipment to achieve precise placement of fiber prepreg. Compared with traditional manual placement, the automatic fiber placement process can improve production efficiency and product quality, and the product quality is more stable. The placement and molding tooling required to make products using the automatic fiber placement process must also meet the requirements of the automatic fiber placement process.

[0004] Many existing composite material product tools are suitable for manual laying, but not for automatic wire laying equipment. These tools cannot be identified and positioned by the wire laying machine, and there is not enough space reserved for the wire laying machine to operate. At the same time, they need to be separately connected to a temperature control device for subsequent molding, and the flatness is usually adjusted only by adding pads during laying, which is not stable enough overall.

[0005] Therefore, there is an urgent need for a UAV aerodynamic shape wire laying process forming tooling to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a UAV aerodynamic shape wire laying process forming tooling to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following solution: The utility model provides a UAV aerodynamic shape wire laying process forming tooling, including:

[0008] A mold body, wherein a feed zone is provided on the mold body, and an automatic fiber placement device forms a UAV model by placing fibers on the mold body;

[0009] A positioning assembly, comprising a plurality of positioning members, wherein the plurality of positioning members are circumferentially arranged at the top end of the mold body, and the positioning members are used for positioning the automatic wire placing equipment;

[0010] A temperature measuring component, arranged on the mold body and used for monitoring the temperature of the mold body;

[0011] The adjusting assembly comprises a plurality of adjusting members, wherein the plurality of adjusting members are circumferentially arranged at the bottom end of the mold body, and the adjusting members are used to adjust the horizontality of the mold body.

[0012] Preferably, the positioning member comprises a positioning hole opened at the top end of the mold body, and a target point and a positioning ball are arranged in the positioning hole.

[0013] Preferably, the temperature measuring component includes a plurality of temperature measuring holes opened on the outer side wall of the mold body, and the temperature measuring holes monitor the temperature of the mold on the mold body.

[0014] Preferably, a plurality of threaded holes are formed at the bottom end of the mold body, and the adjusting member comprises a threaded rod threadedly connected in the threaded holes, and a support plate is fixedly connected to the bottom end of the threaded rod.

[0015] Preferably, a plurality of hanging rings are provided on the top of the mold body.

[0016] Preferably, a plurality of forklift holes are provided at the bottom end of the mold body.

[0017] Compared with the prior art, the utility model has the following advantages and technical effects:

[0018] The utility model provides a UAV aerodynamic shape wire laying process forming tooling, which improves the laying accuracy of the prepreg of the UAV aerodynamic shape during the laying process by setting positioning parts; the temperature measuring parts are used to monitor the temperature and heating rate of the mold during subsequent curing, so as to better control the curing and pressurization parameters; the adjustment parts are used to adjust the level of the tooling to ensure its overall stability and improve the accuracy of the automatic wire laying of the product. This application is suitable for automatic wire laying, ensuring accurate positioning, thereby ensuring laying accuracy and product quality, and improving overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Among them, 1. mold body; 2. feed area; 3. positioning hole; 4. temperature measuring hole; 5. threaded rod; 6. support plate; 7. lifting ring; 8. forklift hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figure 1 The utility model provides a UAV aerodynamic shape wire laying process forming tooling, comprising:

[0025] A mold body 1 is provided with a feed area 2, and an automatic fiber placement device forms a UAV model by placing fibers on the mold body 1;

[0026] A positioning assembly, comprising a plurality of positioning members, the plurality of positioning members being arranged circumferentially at the top of the mold body 1, the positioning members being used for positioning the automatic wire placement equipment;

[0027] A temperature measuring component, arranged on the mold body 1 and used for monitoring the temperature of the mold body 1;

[0028] The adjusting assembly includes a plurality of adjusting members, which are circumferentially arranged at the bottom end of the mold body 1 , and are used to adjust the horizontality of the mold body 1 .

[0029] Outside the product contour of the mold, there is a plane area that is larger than the wire feeding distance of the automatic wire placement equipment (the carbon fiber ribbon of the wire placement machine is not at the "knife tip" of the wire placement head, but at the cutting point. The ribbon needs a distance from the cutting point to the "knife tip". This distance is called the wire feeding distance, and this process is called pre-wire feeding). This area has a smooth transition with the product surface, and the curvature radius is larger than the maximum curvature radius of the automatic wire placement equipment.

[0030] Specifically, the preferred wire laying equipment is a fixed-beam double-gantry mobile CNC wire laying machine of model GW20-AFPA8635-16127, and automatic wire laying is achieved through the wire laying machine.

[0031] According to a further optimized solution, the positioning member includes a positioning hole 3 opened at the top of the mold body 1, and a target point and a positioning ball are arranged in the positioning hole 3.

[0032] There are several positioning holes 3, and the target points of the laser projector can be installed in the positioning holes 3 for laser projection positioning, projecting the edge position of the paving area, and assisting manual paving. Its significance lies in that if there are metal meshes, woven prepregs and other structures in the product that cannot be laid by the automatic wire laying machine, manual paving can be used to complete the paving of this part of the structure. The product is laid alternately by manual and wire laying machines, which is more suitable for drone products; the positioning holes 3 can be installed with metal positioning balls (metal balls with cylinders connected below), and the Renishaw ruby ​​positioning probe installed on the wire laying machine equipment can obtain the coordinates of the center of the ball by touching the positioning balls. By measuring multiple positioning balls, the position of the mold in the machine tool can be obtained, and the mold can be positioned and the workpiece coordinate system can be established. The above technologies are all existing technologies and will not be described in detail here. The positioning holes 3 can improve the paving accuracy of the prepreg of the aerodynamic shape of the drone during the paving process.

[0033] According to a further optimized solution, the temperature measuring component includes a plurality of temperature measuring holes 4 provided on the outer side wall of the mold body 1 , and the temperature measuring holes 4 are used to monitor the temperature of the mold on the mold body 1 .

[0034] There are several temperature measuring holes 4, which are connected to external temperature measuring equipment to monitor the mold temperature and heating rate, so as to better control the pressurization parameters.

[0035] According to a further optimized solution, a plurality of threaded holes are provided at the bottom end of the mold body 1 , and the adjusting member comprises a threaded rod 5 threadedly connected in the threaded hole, and a support plate 6 is fixedly connected to the bottom end of the threaded rod 5 .

[0036] The threaded rods 5 are moved by twisting the threaded rods 5, and the mold body 1 is placed in a horizontal state by adjusting the plurality of threaded rods 5, thereby improving the accuracy of automatic wire laying and pasting of the product.

[0037] According to a further optimized solution, a plurality of hanging rings 7 are provided at the top of the mold body 1 .

[0038] The provided lifting ring 7 facilitates the lifting of the mold body 1 by a lifting device.

[0039] According to a further optimization scheme, a plurality of forklift holes 8 are provided at the bottom end of the mold body 1 .

[0040] The forklift hole 8 is provided to facilitate the use of a forklift to carry the mold body 1 .

[0041] The utility model provides a forming tool for the pneumatic shape of an unmanned aerial vehicle by laying wire process. When in use, the surface of the mold body 1 is first processed to ensure that it is neat, and a target is installed in the positioning hole 3. The three-dimensional coordinates of the target in the machine tool space are measured by an automatic laying wire device. According to the measurement results, the heights of the threaded rod 5 and the support plate 6 are adjusted to make the mold body 1 in a horizontal state. The automatic laying wire device is used to lay wires on the mold body 1. During the laying process, the laying head of the laying machine uses the feed area 2 to complete the pre-feeding process of the laying machine (the position of the carbon fiber ribbon of the laying machine is not at the "tip" of the laying head, but at the cutting point. The ribbon needs a distance from the cutting point to the "tip". This distance is called the wire feeding distance, and this process is called pre-feeding wire). The specific laying process can ensure the size and density of the laid product by vacuum pre-compacting, and then encapsulate it into a can, deploy a thermocouple in the temperature measuring hole, and put it into the furnace for curing. After the curing is completed, the product is demoulded, trimmed, and processed to obtain the pneumatic shape product of the unmanned aerial vehicle.

[0042] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A UAV aerodynamic shape wire laying process forming tool, characterized in that: include: A mold body (1), wherein a cutting area (2) is provided on the mold body (1), and an automatic fiber placement device forms a drone model by placing fibers on the mold body (1); A positioning assembly, comprising a plurality of positioning members, wherein the plurality of positioning members are arranged circumferentially at the top end of the mold body (1), and the positioning members are used for positioning the automatic wire placement equipment; A temperature measuring component, arranged on the mold body (1) and used for monitoring the temperature of the mold body (1); The adjustment assembly comprises a plurality of adjustment members, wherein the plurality of adjustment members are arranged circumferentially at the bottom end of the mold body (1), and the adjustment members are used to adjust the horizontality of the mold body (1).

2. The UAV aerodynamic shape forming tooling according to claim 1, characterized in that: The positioning member comprises a positioning hole (3) opened at the top end of the mold body (1), and a target point and a positioning ball are arranged in the positioning hole (3).

3. The UAV aerodynamic shape wire placement process forming tooling according to claim 1, characterized in that: The temperature measuring component comprises a plurality of temperature measuring holes (4) provided on the outer side wall of the mold body (1), and the temperature measuring holes (4) monitor the temperature of the mold on the mold body (1).

4. The UAV aerodynamic shape forming tooling according to claim 1, characterized in that: A plurality of threaded holes are formed at the bottom end of the mold body (1); the adjusting member comprises a threaded rod (5) threadedly connected in the threaded hole; and a support plate (6) is fixedly connected to the bottom end of the threaded rod (5).

5. The UAV aerodynamic shape forming tooling according to claim 1, characterized in that: A plurality of hanging rings (7) are arranged on the top of the mold body (1).

6. The UAV aerodynamic shape forming tooling according to claim 1, characterized in that: A plurality of forklift holes (8) are provided at the bottom end of the mold body (1).

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