Inclined hole machining device for carbon fiber and low-density composite material large-diameter structural member

Abstract

The utility model provides a carbon fiber and low-density composite material large-diameter structural member inclined hole machining device which comprises a supporting ring, a plug pin piece arranged on the inner side of the supporting ring and a plurality of limiting machining mechanisms arranged on the outer side of the supporting ring, and the limiting machining mechanisms are evenly arranged in the circumferential direction of the supporting ring. Positioning inclined holes are formed in the positions, corresponding to the limiting machining mechanisms, of the supporting ring; the limiting machining mechanism comprises a limiting seat and a limiting piece arranged on the limiting seat, and the limiting piece is detachably installed on the limiting seat. The limiting base is detachably installed on the supporting ring, an assembling inclined hole used for installing the limiting piece is formed in the middle of the limiting base and corresponds to the positioning inclined hole, and the length direction of the assembling inclined hole is the same as that of the positioning inclined hole. The inclined hole machining device for the carbon fiber and low-density composite material large-diameter structural member has the advantages of being high in integration degree and easy to assemble and use.

Description

Technical Field

[0001] The utility model belongs to the field of composite material processing and assembly, and particularly relates to a device for machining inclined holes of large-diameter structural parts made of carbon fiber and low-density composite materials. Background Art

[0002] In the aerospace field, there are various products of large-diameter structural parts made of carbon fiber and low-density composite materials, which often involve inclined hole machining and metal connector assembly. Existing large-diameter structural part products are usually cylindrical cabins. After assembling metal connectors, a layer of low-density composite material needs to be sleeved outside the cabin. For example, when installing an inclined hole angle box on the end face, after the angle box is installed, a layer of low-density composite material needs to be sleeved outside as a whole, and then inclined hole drilling is carried out. The existing conventional processing method is to use a machine tool to machine inclined holes. After sleeving the low-density composite material, it is necessary to re-align and position, and clamping and fixing tools are also required during the processing, resulting in low efficiency and high cost, which is not conducive to improving the machining efficiency of inclined holes of large-diameter structural parts. Therefore, it is necessary to design an inclined hole machining device. Summary of the Utility Model

[0003] In view of this, the present utility model aims to provide a device for machining inclined holes of large-diameter structural parts made of carbon fiber and low-density composite materials to solve the problem that the existing machining of inclined holes of large-diameter structural parts made of carbon fiber and low-density composite materials is inconvenient and affects the machining efficiency.

[0004] To achieve the above object, the technical solution of the present utility model is realized as follows:

[0005] A device for machining inclined holes of large-diameter structural parts made of carbon fiber and low-density composite materials includes a support ring, a pin member arranged inside the support ring, and a limit machining mechanism arranged outside the support ring. A plurality of the limit machining mechanisms are evenly arranged along the circumferential direction of the support ring, and positioning inclined holes are provided at positions corresponding to each limit machining mechanism on the support ring; the limit machining mechanism includes a limit seat and a limiting member arranged on the limit seat, and the limiting member is detachably installed on the limit seat; the limit seat is detachably installed on the support ring, and an assembly inclined hole for installing the limiting member is provided in the middle of the limit seat. The assembly inclined hole corresponds to the positioning inclined hole, and the length direction of the assembly inclined hole is the same as the length direction of the positioning inclined hole.

[0006] Further, the limit seat is a T-shaped structural member, and the horizontal end of the limit seat is fixedly installed on the support ring through fixing screws, and at least two fixing screws are provided corresponding to the left and right sides of the limit seat; the assembly inclined hole is arranged on the vertical end of the limit seat.

[0007] Further, at least two positioning pins are correspondingly provided on the left and right sides of the limit seat, and pin holes for cooperating with the positioning pins are provided on both the horizontal end of the limit seat and the support ring.

[0008] Further, a fitting portion capable of cooperating with the structural member is provided on one side of the limit seat facing the center of the support ring.

[0009] Further, a lifting ring is further provided on the outer side of the support ring, and at least three lifting rings are evenly arranged along the circumferential direction of the support ring.

[0010] Further, a handle member is further provided on the outer side of the support ring, and at least three handle members are evenly arranged along the circumferential direction of the support ring.

[0011] Further, a positioning portion cooperating with the assembly inclined hole is provided at one end of the limiting member extending into the assembly inclined hole, and a limiting portion for positioning the limiting member is provided at the other end.

[0012] Further, a guiding drill hole communicating with the assembly inclined hole is provided on the limiting member, and the length direction of the guiding drill hole is the same as the length direction of the assembly inclined hole.

[0013] Further, a locking member capable of cooperating with the inclined hole of the structural member is provided at a position corresponding to the guiding drill hole on the limiting member. The length direction of the locking member is the same as the length direction of the guiding drill hole. A limiting block is provided at one end of the locking member passing through the guiding drill hole, and the other end sequentially passes through the assembly inclined hole, the inclined hole of the structural member, and the positioning inclined hole. A detachable positioning block is provided at one end of the locking member passing through the positioning inclined hole.

[0014] Further, an assembly clamping groove is provided on the limiting member.

[0015] Compared with the prior art, the large-diameter structural member inclined hole processing device for carbon fiber and low-density composite materials of the present invention has the following advantages:

[0016] The large-diameter structural member inclined hole processing device for carbon fiber and low-density composite materials of the present invention has the advantages of high integration degree, easy assembly and use. It can be applied to the assembly and inclined hole processing of large-diameter structural members of carbon fiber and low-density composite materials, which is beneficial to reducing the assembly and processing difficulty of structural members and improving the inclined hole processing efficiency of structural members. By providing a pin member and a limiting processing mechanism on the support ring, this processing device can stably carry and limit and fix the structural member. The structural member can be installed on this processing device during part assembly and inclined hole processing, avoiding repeated alignment and positioning, which is beneficial to ensuring consistent reference and concentric inclined hole processing. In addition, the limiting member in the limiting processing mechanism can also ensure the inclined hole processing accuracy, which is beneficial to further improving the processing efficiency of structural members. Description of the Drawings

[0017] The attached drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the attached drawings:

[0018] Figure 1 is a schematic structural diagram of an oblique hole processing device for a large-diameter structural member made of carbon fiber and low-density composite material according to an embodiment of the present utility model;

[0019] Figure 2 is a sectional view of an oblique hole processing device for a large-diameter structural member made of carbon fiber and low-density composite material according to an embodiment of the present utility model;

[0020] Figure 3 is a schematic structural diagram at the limit seat in an oblique hole processing device for a large-diameter structural member made of carbon fiber and low-density composite material according to an embodiment of the present utility model;

[0021] Figure 4 is Figure 3 an exploded view of.

[0022] Explanation of reference numerals:

[0023] 1. Support ring; 2. Pin member; 3. Limit seat; 4. Assembly oblique hole; 5. Positioning oblique hole; 6. Limiting member; 7. Locking member; 8. Guide drilling; 9. Positioning pin; 10. Fixing screw; 11. Lifting ring; 12. Handle member; 13. Insertion hole; 14. Positioning block; 15. Positioning part; 16. Assembly card slot; 17. Clamping block; 18. Positioning column; 19. Positioning hole; 20. Limiting part. Detailed implementation manners

[0024] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0027] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0028] An oblique hole machining device for a large-diameter structural member made of carbon fiber and low-density composite material, as Figures 1 to 4 shown, includes a support ring 1, a pin member 2 disposed inside the support ring 1, and a limit machining mechanism disposed outside the support ring 1. A plurality of the limit machining mechanisms are uniformly arranged along the circumferential direction of the support ring 1, and positioning oblique holes 5 are provided at positions corresponding to each limit machining mechanism on the support ring 1; the limit machining mechanism includes a limit seat 3 and a limit member 6 disposed on the limit seat 3 for cooperating with the oblique hole of the structural member, and the limit member 6 is detachably installed on the limit seat 3; the limit seat 3 is detachably installed on the support ring 1, and an assembly oblique hole 4 for installing the limit member 6 is provided in the middle of the limit seat 3. The assembly oblique hole 4 corresponds to the positioning oblique hole 5, and the length direction of the assembly oblique hole 4 is the same as the length direction of the positioning oblique hole 5.

[0029] Exemplarily, a plug hole 13 for installing a plug member 2 is provided inside the support ring 1. A plurality of plug holes 13 can be evenly arranged along the circumferential direction of the support ring 1, so that the operator can select a suitable position to install the plug member 2 according to actual needs, so that the plug member 2 can cooperate with the installation hole at the bottom of the structural member to realize the positioning of the structural member, facilitating the subsequent use of the limit processing mechanism to further fix and process the structural member.

[0030] In the actual application process, by using the support ring 1 to support and fix the structural member, the external and internal processing needs of the structural member can be met, improving the applicability of this processing device. At the same time, by setting a plurality of limit processing mechanisms and plug members 2, it is beneficial to improve the stability of the structural member during the processing process, avoiding repeated alignment during the assembly and processing process.

[0031] Optionally, the limit seat 3 is a T-shaped structural member. The horizontal end of the limit seat 3 is installed and fixed on the support ring 1 through fixing screws 10. At least two fixing screws 10 are provided corresponding to the left and right sides of the limit seat 3; the assembly inclined hole 4 is provided on the vertical end of the limit seat 3. Exemplarily, two, four or more fixing screws 10 can be correspondingly arranged on the left and right sides of the limit seat 3. Corresponding assembly holes for installing the fixing screws 10 are provided on the limit seat 3, and threaded holes for cooperating with the fixing screws 10 are also provided on the support ring 1. In actual use, compared with the limit seats 3 of other structures, the T-shaped limit seat 3 has higher structural strength and better stability, can continuously and stably cooperate with the structural member, and plays a limiting role on the structural member, preventing the structural member from moving during the assembly and processing process.

[0032] In the actual application process, at least two positioning pins 9 are correspondingly provided on the left and right sides of the limit seat 3. Pin holes for cooperating with the positioning pins 9 are provided on both the horizontal end of the limit seat 3 and the support ring 1. Exemplarily, two, four or more positioning pins 9 can be correspondingly arranged. By providing the positioning pins 9 on the limit seat 3, the positioning pins 9 can be used to realize the preliminary positioning of the limit seat 3. During the process of assembling the structural member onto the support ring 1, the structural member can be placed correctly on the support ring 1 first, then the limit seat 3 is installed and the positioning pins 9 are used to preliminarily position the limit seat 3. After that, the operator can adjust the structural member according to needs. After adjustment, the limit seat 3 is fixed by the fixing screws 10, and the limit seat 3 can be used to realize the stable positioning of the structural member.

[0033] Optionally, a fitting portion capable of cooperating with the structural member is provided on one side of the limit seat 3 facing the center of the support ring 1. Exemplarily, the fitting portion can be designed according to the outer surface of the structural member to achieve fitting with the outer surface of the structural member, so that the limit seat 3 can better play a limiting role on the structural member, which will not be elaborated here.

[0034] Optionally, a lifting ring 11 is further provided on the outside of the support ring 1, and at least three lifting rings 11 are evenly arranged along the circumference of the support ring 1. Exemplarily, three, four or more lifting rings 11 can be evenly arranged, and each lifting ring 11 can be fixed on the support ring 1, or can be connected to the support ring 1 by a thread. Those skilled in the art can also choose to set an appropriate number of lifting rings 11 and their installation methods according to actual needs to achieve a stable connection between the lifting ring 1 and the support ring 1, which will not be repeated here. By setting multiple lifting rings 11, the operator can also use lifting equipment to lift the support ring 1 and the structural parts thereon, further improving the convenience of using this processing device.

[0035] Optionally, a handle 12 is further provided on the outside of the support ring 1, and at least three handles 12 are evenly arranged along the circumference of the support ring 1. For example, three, four, or more handles 12 can be evenly arranged, and each handle 12 can be fixed to the support ring 1 by screws. By providing the handles 12 on the support ring 1, it is convenient for operators to adjust the support ring 1 and the structural components thereon during the lifting process.

[0036] Optionally, one end of the limiting member 6 extending into the oblique assembly hole 4 is provided with a positioning portion 15 that cooperates with the oblique assembly hole 4, and the other end is provided with a limiting portion 20 for positioning the limiting member 6. Exemplarily, the outer diameter of the limiting portion 20 is larger than the aperture of the oblique assembly hole 4 to achieve the limitation of the limiting member 6. Specifically, the limiting member 6 is a cylindrical structural member, and the positioning portion 15 on the limiting member 6 can be inserted into the oblique hole of the structural member to achieve the cooperation between the limiting member 6 and the structural member, or the positioning portion 15 on the limiting member 6 can be used to support the side of the structural member to achieve the cooperation between the limiting member 6 and the structural member. Those skilled in the art can make their own choices according to actual needs to achieve the limitation of the structural member by the limiting member 6, and no further details will be given here.

[0037] In actual use, the stopper 6 can be provided with a guide drill hole 8 that communicates with the oblique assembly hole 4. The length of the guide drill hole 8 is the same as that of the oblique assembly hole 4. By providing the guide drill hole 8 on the stopper 6, when it is necessary to machine an oblique hole on a structural component, the operator can replace the stopper 6 with a guide drill hole 8 of a different diameter. The guide drill hole 8 on the stopper 6 can then be used to effectively guide the drilling equipment, thereby improving the machining accuracy and efficiency of the oblique hole on the structural component.

[0038] Optionally, a locking piece 7 that can cooperate with the inclined hole of the structural part is provided at the position corresponding to the guide drill hole 8 on the limit member 6. The length direction of the locking piece 7 is the same as the length direction of the guide drill hole 8. One end of the locking piece 7 passing through the guide drill hole 8 is provided with a limiting block, and the other end passes through the assembly inclined hole 4, the structural part inclined hole, and the positioning inclined hole 5 in sequence. The end of the locking piece 7 passing through the positioning inclined hole 5 is provided with a detachable positioning block 14.

[0039] Exemplarily, the outer diameter of the limit block is larger than the aperture of the guiding drill hole 8, and the outer diameter of the positioning block 14 is larger than the aperture of the positioning inclined hole 5. A threaded connection can be adopted between the positioning block 14 and the locking member 7. For example, the locking member 7 is provided with an external thread, and the positioning block 14 is provided with a threaded hole that cooperates with the locking member 7. Those skilled in the art can also select other ways to connect the locking member 7 and the positioning block 14 according to actual needs to achieve the detachable connection between the two, which will not be elaborated here.

[0040] In the actual application process, by arranging a locking member 7 on the limit block that can cooperate with the inclined hole of the structural member, the operator can install the locking member 7 on the limiting member 6, utilize the limit block at one end of the locking member 7 to cooperate with the limiting member 6, and install the positioning block 14 at the other end where the locking member 7 passes through the inclined hole of the structural member. The positioning block 14 is used to cooperate with the support ring 1 to further limit and fix the structural member on the support ring 1, further improving the stability of the structural member during the assembly and processing process.

[0041] Optionally, the limiting member 6 is provided with an assembly card slot 16. By arranging the assembly card slot 16 on the limiting member 6, it is not only convenient for the operator to use a clamping tool to clamp and install the limiting member 6, but also when the operator installs the locking member 7 and the positioning block 14 on the locking member 7, the operator can also use the clamping tool to limit the limiting member 6, thus facilitating the installation of the positioning block 14 and reducing the installation difficulty of the locking member 7 and the positioning block 14 thereon.

[0042] In the actual application process, a card block 17 that cooperates with the assembly card slot 16 can also be installed on the limit seat 3, thereby preventing the limiting member 6 from accidentally rotating after assembly. Exemplarily, one end of the card block 17 is provided with a positioning post 18, and the other end is provided with a clamping portion that can cooperate with the assembly card slot 16. The limit seat 3 is provided with a positioning hole 19 that cooperates with the positioning post 18. When it is necessary to install the locking member 7 and utilize the cooperation between the locking member 7 and the inclined hole on the structural member to limit the structural member, the operator can install the card block 17 on the limit seat 3 and utilize the card block 17 to limit the limiting member 6. When it is necessary to drill the inclined hole on the structural member by using the guiding drill hole 8 on the limiting member 6, the operator can disassemble the card block 17 and the locking member 7, so that the limiting member 6 can rotate with the drilling equipment to improve the processing accuracy and processing efficiency of the inclined hole.

[0043] This processing device can be used for the processing and assembly of the following structural members: the structural member is a cylindrical cabin body, an inclined hole angle box needs to be installed on the end face. After the angle box is installed, a layer of low-density composite material is integrally sleeved on the outside, and then the inclined hole is drilled through from the outside.

[0044] The specific process route can refer to the following steps:

[0045] First, install the composite material shell (structural part) onto the support ring, and use the pinning parts and the limiting and processing mechanism on the support ring to achieve the limiting and fixing of the composite material shell. Among them, pinning parts can be installed on the support ring, and limiting parts can be installed on the limiting seat to achieve the preliminary limitation of the composite material shell. At the same time, by installing locking parts on the limiting parts and passing the locking parts through the inclined holes on the composite material shell and then installing positioning blocks, the limiting seat and the locking parts on the limiting parts can play a further role in limiting and fixing the composite material shell.

[0046] Then, install the angle box on the composite material shell. After the installation of the angle box is completed, remove the limiting and processing mechanism, and sleeve a low-density composite material on the outer side of the composite material shell with the angle box, covering the inclined holes on the composite material shell.

[0047] Finally, reinstall the sleeved composite material shell onto the support ring, and use the pinning parts and the limiting seat on the support ring to achieve the limitation of the composite material shell. At this time, there is no need to re-align. The operator can use the guiding drilling holes on the limiting parts to guide the drilling equipment to drill inclined holes from the outside of the composite material shell and drill through the inclined holes, which is very simple to operate.

[0048] The inclined hole processing device for large-diameter structural parts made of carbon fiber and low-density composite materials described in the present utility model has the advantages of high integration level, easy assembly and use, and can be applied to the assembly and inclined hole processing of large-diameter structural parts made of carbon fiber and low-density composite materials, which is beneficial to reducing the assembly and processing difficulty of structural parts and improving the inclined hole processing efficiency of structural parts. By setting pinning parts and a limiting and processing mechanism on the support ring, this processing device can stably carry and limit and fix structural parts. The structural parts can be installed on this processing device during part assembly and inclined hole processing, avoiding repeated alignment and positioning, which is beneficial to ensuring the consistency of the reference and the concentricity of inclined hole processing. In addition, the limiting parts in the limiting and processing mechanism can also ensure the inclined hole processing accuracy, which is beneficial to further improving the processing efficiency of structural parts.

[0049] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An oblique hole machining device for a large-diameter structural member made of carbon fiber and low-density composite material, characterized in that: It includes a support ring (1), a pin member (2) disposed inside the support ring (1), and a limit machining mechanism disposed outside the support ring (1). A plurality of the limit machining mechanisms are evenly arranged along the circumferential direction of the support ring (1), and positioning inclined holes (5) are provided at positions on the support ring (1) corresponding to each limit machining mechanism; the limit machining mechanism includes a limit seat (3) and a limit member (6) disposed on the limit seat (3), and the limit member (6) is detachably installed on the limit seat (3); the limit seat (3) is detachably installed on the support ring (1), and an assembly inclined hole (4) for installing the limit member (6) is provided in the middle of the limit seat (3), the assembly inclined hole (4) corresponds to the positioning inclined hole (5), and the length direction of the assembly inclined hole (4) is the same as the length direction of the positioning inclined hole (5).

2. The oblique hole machining device for large-diameter structural parts of carbon fiber and low-density composite materials according to claim 1, wherein: The limit seat (3) is a T-shaped structural member, and the horizontal end of the limit seat (3) is installed and fixed on the support ring (1) by fixing screws (10), and at least two fixing screws (10) are provided corresponding to the left and right sides of the limit seat (3); the assembly inclined hole (4) is provided on the vertical end of the limit seat (3).

3. The inclined hole processing device for a large-diameter structural member made of carbon fiber and low-density composite material according to claim 2, wherein: At least two positioning pins (9) are correspondingly provided on the left and right sides of the limit seat (3), and pin holes for cooperating with the positioning pins (9) are provided on both the horizontal end of the limit seat (3) and the support ring (1).

4. A large-diameter structural member inclined hole machining device for carbon fiber and low-density composite materials according to any one of claims 1-3, characterized in that: One side of the limit seat (3) facing the center of the support ring (1) is provided with a fitting portion capable of cooperating with a structural member.

5. The inclined hole machining device for a large-diameter structural member made of carbon fiber and low-density composite material according to claim 1, wherein: A lifting ring (11) is further provided outside the support ring (1), and at least three lifting rings (11) are evenly arranged along the circumferential direction of the support ring (1).

6. The large-diameter structural member inclined hole machining device for carbon fiber and low-density composite materials according to claim 1 or 5, characterized in that: A handle member (12) is further provided outside the support ring (1), and at least three handle members (12) are evenly arranged along the circumferential direction of the support ring (1).

7. An oblique hole machining device for a large-diameter structural member made of carbon fiber and low-density composite material according to claim 1, characterized in that: One end of the limit member (6) extending into the assembly inclined hole (4) is provided with a positioning portion (15) for cooperating with the assembly inclined hole (4), and the other end is provided with a limiting portion (14) for positioning the limit member (6).

8. An oblique hole machining device for a large-diameter structural member made of carbon fiber and low-density composite material according to claim 7, characterized in that: A guiding drilling (8) communicating with the assembly inclined hole (4) is provided on the limit member (6), and the length direction of the guiding drilling (8) is the same as the length direction of the assembly inclined hole (4).

9. The inclined hole machining device for large-diameter structural parts made of carbon fiber and low-density composite materials according to claim 8, wherein: A locking member (7) capable of cooperating with an inclined hole of a structural member is provided on the limit member (6) corresponding to the position of the guiding drilling (8), the length direction of the locking member (7) is the same as the length direction of the guiding drilling (8), a limiting block is provided at one end of the locking member (7) extending out of the guiding drilling (8), and the other end sequentially passes through the assembly inclined hole (4), the inclined hole of the structural member, and the positioning inclined hole (5), and a detachable positioning block (14) is provided at the end of the locking member (7) passing through the positioning inclined hole (5).

10. A large-diameter structural member inclined hole machining device for carbon fiber and low-density composite materials according to any one of claims 7 to 9, characterized in that: An assembly slot (16) is provided on the limit member (6).

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