A tooling for braiding composite material blades

Abstract

The present invention discloses a tooling for the braiding of composite material blades, which comprises a first connecting joint fork, a transfer handle, a second connecting joint fork and a connecting shaft. The first connecting joint fork includes a first connecting section and a first joint fork section, and the first connecting section is fixed to the first joint fork section; the first connecting section is connected to a three-dimensional braiding machine, and through holes are provided on two parallel plates of the first joint fork section. The transfer handle includes a first connecting handle, a second connecting handle and a transfer seat. Bolt holes are provided on both the first connecting handle and the second connecting handle. The first connecting handle and the second connecting handle are respectively fixed on both sides of the transfer seat, and the bolt hole of the first connecting handle corresponds to the through hole and is connected by a bolt; the second connecting joint fork includes a second connecting section and a second joint fork section, and the second connecting section is integrally fixed to the second joint fork section; mounting holes are provided on two parallel plates of the second joint fork section, and the bolt hole of the second connecting handle corresponds to the mounting hole and is connected by a bolt. The second connecting section is rotatably connected to the connecting shaft, and one end of the connecting shaft is fixedly connected to a product part.

Description

Technical Field

[0001] The present invention relates to the technical field of aerospace manufacturing, and particularly relates to a tooling for composite blade weaving. Background Art

[0002] The propeller is a key component in the power machinery of a rotorcraft. The three-dimensional weaving process is particularly important in the entire manufacturing process of a composite propeller. In China, the woven fabrics are basically rotating bodies or regular bodies with equal thickness. It is very rare for the propeller blade with a variable cross-section and irregular complex airfoil shape. The special process equipment connecting the weaving equipment and the product in the middle must meet various random angle weaving requirements, so that the surface tension is uniform and the fiber spatial position distribution is uniform during the weaving process.

[0003] Therefore, how to provide a flexible tooling for composite blade weaving is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a tooling for composite blade weaving, which is flexible and easy to adjust the position of the product part, meeting the requirements of random angle weaving of a three-dimensional weaving machine.

[0005] To achieve the above object, the present invention adopts the following technical solution: A tooling for composite blade weaving, which includes a first connecting joint fork, a transfer handle, a second connecting joint fork and a connecting shaft. The first connecting joint fork includes a first connecting section and a first joint fork section, and the first connecting section and the first joint fork section are integrally and fixedly connected; the first connecting section is connected to the interface of the three-dimensional weaving machine, and perforations are correspondingly arranged on both parallel plates of the first joint fork section. The transfer handle includes a first connecting handle, a second connecting handle and a transfer seat. Bolt holes are arranged on both the first connecting handle and the second connecting handle. The first connecting handle and the second connecting handle are respectively fixed on both side end faces of the transfer seat. The axes of the corresponding bolt holes on the first connecting handle and the second connecting handle are perpendicular to each other. The bolt hole on the first connecting handle corresponds to the perforation and is connected by a bolt; the second connecting joint fork includes a second connecting section and a second joint fork section, and the second connecting section and the second joint fork section are integrally and fixedly connected; mounting holes are arranged on both parallel plates of the second joint fork section. The bolt hole on the second connecting handle corresponds to the mounting hole and is connected by a bolt. The second connecting section is a stepped shaft and is rotatably connected to the connecting shaft, and one end of the connecting shaft is fixedly connected to the product part.

[0006] Advantages of the present invention: The first connecting joint fork is connected to the 3D braiding machine, and the second connecting joint fork is connected to the product part. The first connecting joint fork and the second connecting joint fork are connected by a transfer handle. Specifically, the transfer handle is connected to the first connecting joint fork and the second connecting joint fork respectively by bolts. The position angle between the first connecting joint fork and the second connecting joint fork is adjusted by loosening the bolts. After determining the angle, the bolts are tightened, so that the second connecting joint fork and the first connecting joint fork maintain position stiffness and do not displace or deform. The second connecting joint fork is rotatably connected to the connecting shaft, so that the connecting shaft can rotate 360 degrees around its axis to adjust the position of the product part, and the position adjustment is flexible, meeting the braiding requirements of different angle changes of the 3D braiding machine.

[0007] Preferably, a threaded hole is provided on the side wall of one end of the connecting shaft close to the second connecting section, a fixing bolt is arranged in the threaded hole, and the end of the fixing bolt can abut against the side wall of the second connecting section.

[0008] Preferably, there are multiple through holes on the first joint fork section, and multiple bolt holes on the first connecting handle. Bolts can be correspondingly connected in the bolt holes and the through holes to adjust the relative connection position and rotation angle between the first joint fork section and the first connecting handle.

[0009] Preferably, gaskets are arranged on the outer sides of the two parallel plates of the first joint fork section corresponding to the bolt connection.

[0010] Preferably, there are multiple mounting holes on the second joint fork section, and multiple bolt holes on the second connecting handle. Bolts can be correspondingly connected in the bolt holes and the mounting holes to adjust the relative connection position and rotation angle between the second joint fork section and the second connecting handle.

[0011] Preferably, washers are arranged on the outer sides of the two parallel plates of the second joint fork section corresponding to the mounting holes. Description of the Drawings

[0012] Figure 1 It is the overall structure diagram of a tooling for braiding a composite material blade of the present invention.

[0013] 1 First connecting joint fork, 11 First connecting section, 12 First joint fork section, 2 Transfer handle, 21 First connecting handle, 22 Second connecting handle, 23 Middle rotating seat, 3 Second connecting joint fork, 31 Second connecting section, 32 Second joint fork section, 4 Connecting shaft, 5 Fixing bolt. Detailed Embodiments

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0015] Referring to the attached Figure 1 drawing of the present invention, a tooling for braiding a composite material blade includes a first connecting joint fork 1, a transfer handle 2, a second connecting joint fork 3 and a connecting shaft 4. The first connecting joint fork 1 includes a first connecting section 11 and a first joint fork section 12, and the first connecting section 11 and the first joint fork section 12 are integrally and fixedly connected; the first connecting section 11 is connected to the interface of a three-dimensional braiding machine, and perforations are correspondingly arranged on both parallel plates of the first joint fork section 12. The transfer handle 2 includes a first connecting handle 21, a second connecting handle 22 and a transfer seat 23. Bolt holes are arranged on both the first connecting handle 21 and the second connecting handle 22. The first connecting handle 21 and the second connecting handle 22 are respectively fixedly located on both end faces of the transfer seat 23. The central axes of the corresponding bolt holes on the first connecting handle 21 and the second connecting handle 22 are perpendicular to each other. The bolt hole on the first connecting handle 21 corresponds to the perforation and is connected by a bolt.

[0016] The second connecting joint fork 3 includes a second connecting section 31 and a second joint fork section 32, and the second connecting section 31 and the second joint fork section 32 are integrally and fixedly connected; mounting holes are arranged on both parallel plates of the second joint fork section 32. The bolt hole on the second connecting handle 22 corresponds to the mounting hole and is connected by a bolt. The second connecting section 31 is a stepped shaft and is rotatably connected to the connecting shaft 4. One end of the connecting shaft 4 is fixedly connected to a product part.

[0017] In some specific embodiments, a threaded hole is arranged on the side wall of one end of the connecting shaft 4 close to the second connecting section 31, and a fixing bolt 5 is arranged in the threaded hole, and the end of the fixing bolt can abut against the side wall of the second connecting section 31. The second connecting joint fork can be braked by the fixing bolt, so that the position of the second connecting joint fork and the connecting shaft is fixed. Loosening the fixing bolt can rotate the connecting shaft, which is convenient for adjusting the angle and position of the product part to meet the braiding requirements of the three-dimensional braiding equipment.

[0018] Specifically, there are multiple perforations on the first joint fork section 12 and multiple bolt holes on the first connecting handle 21. Bolts can be correspondingly connected in the bolt holes and the perforations to adjust the relative connection position and rotation angle between the first joint fork section and the first connecting handle. By connecting different bolt holes and perforations, the position distance between the transfer handle and the first connecting joint fork can be adjusted, and then the position relationship between the first connecting joint fork and the transfer handle can be adjusted by loosening and tightening the bolts.

[0019] More specifically, gaskets are provided on the outer sides of the two parallel plates corresponding to the first joint fork section 12 that are bolt-connected. The provision of the gaskets improves the fastening property of the bolt connection and ensures the position stiffness of the first connecting joint fork and the adapter handle after the adjustment of the angle.

[0020] In some other embodiments, there are multiple mounting holes on the second joint fork section 32 and multiple bolt holes on the second connecting handle 22. Bolts can be correspondingly connected in the bolt holes and the mounting holes to adjust the relative connection position and the rotation angle between the second joint fork section and the second connecting handle. By connecting different bolt holes and mounting holes, the position distance between the second connecting joint fork and the adapter handle can be adjusted. Furthermore, the position angle of the second connecting joint fork can be adjusted by loosening and tightening the bolts, thereby changing the position of the product part connected to the end of the adapter shaft.

[0021] More specifically, washers are provided on the outer sides of the two parallel plates of the second joint fork section 32 corresponding to the mounting holes. The provision of the washers improves the fastening property of the bolt connection and ensures the position stiffness of the first connecting joint fork and the adapter shaft after fastening.

[0022] A tooling for composite blade weaving according to the present invention is respectively connected to a three-dimensional weaving device and a product part. During operation, the fixing lock bolts and the fixing bolts ensure the position stiffness of the first connecting joint fork, the adapter handle, the second connecting joint fork, and the connecting shaft, and no deformation occurs. Specifically, the states of the adapter handle, the first connecting joint fork, and the second connecting joint fork can be adjusted in a timely manner according to needs by loosening and tightening the bolts, so as to adjust their position angles to reach the weaving process angle. More specifically, the second connecting section of the connecting shaft and the second connecting joint fork can be rotatably connected, and the rotation angle is restricted by the fixing bolts to reach the optimal weaving state. The entire weaving process can be paused for intermediate process adjustment and changing the weaving angle to meet the weaving process requirements until the weaving is completed.

[0023] For the devices and usage methods disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For related parts, reference can be made to the description in the method part.

[0024] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tooling for braiding composite material blades, characterized in that It includes a first connecting joint fork (1), a transfer handle (2), a second connecting joint fork (3) and a connecting shaft (4). The first connecting joint fork (1) includes a first connecting section (11) and a first joint fork section (12), and the first connecting section (11) is integrally and fixedly connected to the first joint fork section (12); the first connecting section (11) is connected to the interface of a three-dimensional braiding machine, and perforations are correspondingly arranged on both parallel plates of the first joint fork section (12). The transfer handle (2) includes a first connecting handle (21), a second connecting handle (22) and a middle transfer seat (23). Bolt holes are provided on both the first connecting handle (21) and the second connecting handle (22). The first connecting handle (21) and the second connecting handle (22) are respectively fixedly located on both side end faces of the middle transfer seat (23). The central axes of the corresponding bolt holes on the first connecting handle (21) and the second connecting handle (22) are perpendicular to each other. The bolt hole on the first connecting handle (21) corresponds to the perforation and is connected by a bolt; The second connecting joint fork (3) includes a second connecting section (31) and a second joint fork section (32), and the second connecting section (31) is integrally and fixedly connected to the second joint fork section (32); mounting holes are provided on both parallel plates of the second joint fork section (32). The bolt hole on the second connecting handle (22) corresponds to the mounting hole and is connected by a bolt. The second connecting section (31) is a stepped shaft and is rotatably connected to the connecting shaft (4). One end of the connecting shaft (4) is fixedly connected to a product part.

2. The tooling for braiding a composite material blade according to claim 1, characterized in that, A threaded hole is provided on the side wall of one end of the connecting shaft (4) close to the second connecting section (31). A fixing bolt (5) is arranged in the threaded hole, and the end of the fixing bolt can abut against the side wall of the second connecting section (31).

3. The tooling for braiding a composite material blade according to claim 1, characterized in that, There are multiple perforations on the first joint fork section (12), and multiple bolt holes on the first connecting handle (21). Bolts can be correspondingly connected in the bolt holes and the perforations to adjust the relative connection position and rotation angle between the first joint fork section and the first connecting handle.

4. The tooling for braiding a composite material blade according to claim 3, characterized in that, Gaskets are arranged on the outer sides of the two parallel plates of the first joint fork section (12) corresponding to the bolt connection.

5. The tooling for braiding a composite material blade according to claim 1, characterized in that, There are multiple mounting holes on the second joint fork section (32), and multiple bolt holes on the second connecting handle (22). Bolts can be correspondingly connected in the bolt holes and the mounting holes to adjust the relative connection position and rotation angle between the second joint fork section and the second connecting handle.

6. The tooling for braiding a composite material blade according to claim 5, characterized in that, Washers are arranged on the outer sides of the two parallel plates of the second joint fork section (32) corresponding to the mounting holes.

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