Assembly tool and assembly technological process for vertical fin of unmanned aerial vehicle

Abstract

The assembly tool comprises a support, two cross beams and two longitudinal beams, the cross beams and the longitudinal beams are horizontally arranged and fixedly installed on the support, and positioning pins and rear beam supporting grooves are oppositely arranged on the two cross beams. The two ends of a main beam of the vertical fin of the unmanned aerial vehicle are installed on the positioning pins and the rear beam supporting grooves respectively, a plurality of wing rib clamping grooves are formed in any longitudinal beam, a plurality of wing ribs of the vertical fin of the unmanned aerial vehicle are placed on the wing rib clamping grooves respectively, and a height adjusting device is arranged at the bottom of the support. The two ends of the main beam of the vertical fin of the unmanned aerial vehicle are installed on the positioning pins and the rear beam supporting grooves correspondingly, the wing ribs of the vertical fin of the unmanned aerial vehicle are placed on the wing rib clamping grooves correspondingly, and the height adjusting devices are arranged at the bottoms of the supports. The requirements for high wing shape precision and high assembly requirements of the vertical fin of the unmanned aerial vehicle can be met, the assembly efficiency can be improved, and the cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to an assembly tool and an assembly process flow of a vertical tail of an unmanned aerial vehicle. Background Art

[0002] In the process of UAV development and manufacturing, the overall assembly is to assemble various parts, instruments, equipment, and components into various parts step by step according to the design requirements, and then assemble the parts. The assembly cost of the parts depends on the assembly method, which in turn affects the assembly time and assembly accuracy. In the process of parts manufacturing, the traditional assembly sequence planning is to plan the assembly sequence of the product based on the work experience and intuition of the assemblers, which has great subjectivity and uncertainty, cannot guarantee the assembly accuracy, and has a long assembly cycle and high cost. Therefore, reasonable assembly process planning can significantly reduce the life cycle and manufacturing cost of product research and development. On the other hand, since the vertical tail in the present invention has more components, the wall thickness of the parts is small and easy to deform, it is difficult to control the overall shape after assembly; and the attitude control product has very high requirements on the accuracy and stability of the wing shape. The assembly tooling and process flow directly affect the quality of the parts, thus putting forward higher requirements for assembly.

[0003] Therefore, the inventors believe that it is necessary to design assembly tooling and assembly process flow according to the structure and characteristics of the vertical tail, so as to realize the assembly of the vertical tail of the UAV and meet the design accuracy requirements of the wing shape. Summary of the invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide an assembly tool and assembly process flow for a vertical tail of an unmanned aerial vehicle.

[0005] According to the present invention, an assembly tool for a vertical tail of an unmanned aerial vehicle comprises: a support, two cross beams and two longitudinal beams, wherein the cross beams and the longitudinal beams are horizontally arranged and fastened to the support, positioning pins and rear beam support grooves are arranged opposite to each other on the two cross beams, and the two ends of the main beam of the vertical tail of the unmanned aerial vehicle are respectively mounted on the positioning pins and the rear beam support grooves, and a plurality of wing rib slots are arranged on any of the longitudinal beams, and a plurality of wing ribs of the vertical tail of the unmanned aerial vehicle are respectively placed on the wing rib slots, and a height adjustment device is arranged at the bottom of the support.

[0006] Preferably, the support is welded from multiple square tube steels, the crossbeam includes a first crossbeam and a second crossbeam arranged in parallel, a threaded hole is provided on the top of the support, corresponding countersunk holes are provided at both ends of the first crossbeam and the second crossbeam, and the first crossbeam and the second crossbeam are respectively fastened and installed on the support by bolts.

[0007] Preferably, a horizontal positioning pin hole is opened in the middle of the first crossbeam, and the positioning pin passes through the positioning pin hole and is horizontally installed on the first crossbeam.

[0008] Preferably, the positioning pin includes three sections of cylinders with different outer diameters, and the outer diameter of the cylinder gradually decreases from the first crossbeam to the second crossbeam.

[0009] Preferably, the rear beam support groove is provided on the second cross beam, and the rear beam support groove is semi-cylindrical.

[0010] Preferably, the longitudinal beam includes a first longitudinal beam and a second longitudinal beam, and the two ends of the first longitudinal beam are respectively fastened to the ends of the first cross beam and the second cross beam by angle irons; the two ends of the second longitudinal beam are respectively fastened to the ends of the first cross beam and the second cross beam by angle irons.

[0011] Preferably, the height adjustment device comprises an adjusting bolt, and a plurality of the adjusting bolts are symmetrically distributed at the bottom of the support.

[0012] According to an assembly process of a vertical tail of a UAV provided by the present invention, the assembly tool of the vertical tail of a UAV described above is adopted, and the process comprises the following steps:

[0013] Step 1: Install the assembly tooling of the vertical tail of the UAV, adjust the height by adjusting the height adjustment device, and measure the level with a level measuring instrument;

[0014] Step 2: The wing ribs include a first wing rib, a second wing rib, a third wing rib and a fourth wing rib. The first wing rib, the second wing rib, the third wing rib and the fourth wing rib are sequentially inserted on the main beam, an end of the main beam close to the first wing rib is inserted into the positioning pin, and an end of the main beam close to the fourth wing rib is placed on the rear beam support groove;

[0015] Step 3: Fasten and install the C-beam on one side of the second wing rib and the third wing rib;

[0016] Step 4: Fasten one end of the C-beam to the first wing rib;

[0017] Step 5: Fasten one end of the rudder surface assembly onto the first wing rib;

[0018] Step 6: Fasten the other end of the C-beam to the fourth wing rib, and fasten the other end of the rudder assembly to the fourth wing rib;

[0019] Step 7: Rotate the main beam, adjust the position of the wing rib and the main beam, and insert the wing rib into the wing rib slot;

[0020] Step 8: Rotate the main beam and move it axially, apply glue on the connection of the main beam at the right end of the wing rib, rotate the main beam, and return it to its original position.

[0021] Preferably, the method further comprises the following steps:

[0022] Step 9: Wrap one end of the wing rib with masking paper to fix it, and add glue after curing;

[0023] Step 10: Apply glue to the assembly position of the head and leading edge of the wing rib, then install the leading edge and wrap masking tape around the corresponding position to fix it;

[0024] Step 11: Remove the masking paper and cut the main beam to obtain the vertical tail assembly.

[0025] Preferably, two assembly holes are provided in the middle of the C-shaped beam, and the ends of the second wing rib and the third wing rib are respectively glued and connected to the C-shaped beam through the assembly holes.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention has positioning pins and rear beam support grooves relatively arranged on two cross beams, and the two ends of the main beam of the vertical tail of the UAV are respectively installed on the positioning pins and the rear beam support grooves, and a plurality of wing rib slots are arranged on any longitudinal beam, and a plurality of wing ribs of the vertical tail of the UAV are respectively placed on the wing rib slots, and a height adjustment device is arranged at the bottom of the support. By fully considering the characteristics of the vertical tail, the requirements of high wing shape accuracy and high assembly requirements of the vertical tail of the UAV can be met, which is helpful to improve assembly efficiency and reduce costs, and can also accurately control the distance between each wing rib, accurately control the overall shape of the vertical tail, can effectively ensure the assembly quality, and has a short assembly cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0029] Figure 1 This is a schematic diagram of the structure of the assembly tooling for the vertical tail of a UAV mainly embodied in the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the support mainly embodied in the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the first crossbeam mainly embodied in the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of the second crossbeam mainly embodied in the present invention;

[0033] Figure 5This is a schematic diagram of the structure of the first longitudinal beam mainly embodied in the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of the second longitudinal beam mainly embodied in the present invention;

[0035] Figure 7 This is a schematic diagram of the structure of the positioning pin mainly embodied in the present invention;

[0036] Figure 8 This is a schematic diagram of the structure of the vertical tail of a UAV mainly embodied in the present invention;

[0037] Fig. 9 This is a schematic diagram of the assembly process of the vertical tail of a UAV mainly embodied in the present invention;

[0038] Fig.10 This is a schematic diagram of the assembly process of the vertical tail of a UAV mainly embodied in the present invention;

[0039] Fig.11 This is a schematic diagram of the assembly process of the vertical tail of a UAV mainly embodied in the present invention;

[0040] Fig.12 This is a schematic diagram of the assembly process of the vertical tail of a UAV mainly embodied in the present invention;

[0041] Fig.13 This is a schematic diagram of the assembly process of the vertical tail of a UAV mainly embodied in the present invention;

[0042] Fig.14 The present invention mainly embodies the schematic diagram of the assembly process of the vertical tail of an unmanned aerial vehicle.

[0043] As shown in the figure:

[0044] Support 1 First cross beam 2 First longitudinal beam 3

[0045] Second longitudinal beam 4 Second transverse beam 5 Angle iron 6

[0046] Adjusting bolt 7 Positioning pin 8 First wing rib 11

[0047] Second rib 12 Third rib 13 Fourth rib 14

[0048] Main beam 15 C-beam 16 Rudder assembly 17 DETAILED DESCRIPTION

[0049] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0050] Example 1

[0051] like Figure 1-7 As shown, an assembly tool for a vertical tail of an unmanned aerial vehicle provided according to the present invention comprises: a support 1, two cross beams and two longitudinal beams, the cross beams and the longitudinal beams are horizontally arranged and fastened to the support 1, positioning pins 8 and rear beam support grooves are relatively arranged on the two cross beams, the two ends of the main beam 15 of the vertical tail of the unmanned aerial vehicle are respectively installed on the positioning pins 8 and the rear beam support grooves, a plurality of wing rib slots are arranged on any longitudinal beam, a plurality of wing ribs of the vertical tail of the unmanned aerial vehicle are respectively placed on the wing rib slots, and a height adjustment device is arranged at the bottom of the support 1.

[0052] In the process of UAV development and manufacturing, the overall assembly is to gradually assemble various parts, instruments, equipment, and components into various components according to the design requirements, and then assemble the components. The assembly cost of the components depends on the assembly method, and the assembly method affects the assembly time and assembly quality. The vertical tail of the UAV has high wing shape accuracy requirements and high assembly requirements. The assembly tooling of this application can effectively ensure the assembly quality, and the assembly cycle is short and the cost is low.

[0053] The support 1 is welded from multiple square tube steels, and the crossbeams include a first crossbeam 2 and a second crossbeam 5 arranged in parallel. A threaded hole is provided on the top of the support 1, and corresponding countersunk holes are provided at both ends of the first crossbeam 2 and the second crossbeam 5. The first crossbeam 2 and the second crossbeam 5 are respectively fastened to the support 1 by bolts.

[0054] A horizontal positioning pin hole is opened in the middle of the first cross beam 2 , and the positioning pin 8 passes through the positioning pin hole and is horizontally installed on the first cross beam 2 .

[0055] The positioning pin 8 includes three sections of cylinders with different outer diameters. The outer diameter of the cylinder gradually decreases from the first cross beam 2 to the second cross beam 5. The different outer diameters form a shoulder, which plays a positioning role.

[0056] A rear beam support groove is provided on the second cross beam 5 . The rear beam support groove is semi-cylindrical and matches the shape of the main beam 15 , so as to facilitate the adjustment of the position of the main beam 15 . Furthermore, the shape and size of the rear beam support groove depend on the shape and size of the main beam 15 .

[0057] The longitudinal beams include a first longitudinal beam 3 and a second longitudinal beam 4. The two ends of the first longitudinal beam 3 are fastened to the ends of the first cross beam 2 and the second cross beam 5 by angle irons 6 respectively; the two ends of the second longitudinal beam 4 are fastened to the ends of the first cross beam 2 and the second cross beam 5 by angle irons 6 respectively.

[0058] The height adjustment device includes an adjustment bolt 7 , and a plurality of adjustment bolts 7 are symmetrically distributed at the bottom of the support 1 . The height level adjustment function is achieved by rotating the adjustment bolt 6 .

[0059] This application fully considers the characteristics of the vertical tail and meets the assembly requirements. Reasonable assembly process planning can significantly reduce the product development life cycle and manufacturing costs.

[0060] Example 2

[0061] like Figure 8-14 As shown, according to an assembly process flow of a vertical tail of an unmanned aerial vehicle provided by the present invention, the assembly tooling of the vertical tail of the unmanned aerial vehicle of Example 1 is used, and the following steps are included:

[0062] Step 1: Install the assembly tooling of the vertical tail of the UAV, adjust the height by adjusting the height adjustment device, that is, rotate the adjusting bolt 7 to adjust the height, and measure the level with a level measuring instrument;

[0063] Step 2: The ribs include a first rib 11, a second rib 12, a third rib 13 and a fourth rib 14. The first rib 11, the second rib 12, the third rib 13 and the fourth rib 14 are sequentially passed through the main beam 15, an end of the main beam 15 close to the first rib 11 is inserted into the positioning pin 8, and an end of the main beam 15 close to the fourth rib 14 is placed on the rear beam support groove;

[0064] Step 3: Two assembly holes are set in the middle of the C-beam 16. Glue is applied to the two assembly holes, and glue is applied to the ends of the second rib 12 and the third rib 13. The ends of the second rib 12 and the third rib 13 are respectively glued and connected to the C-beam 16 through the assembly holes. The C-beam 16 is fastened and installed on one side of the second rib 12 and the third rib 13. At this time, the first rib 11 and the fourth rib 14 are hung on the main beam 15;

[0065] Step 4: Apply glue to the end of the C-beam 16 and the assembly with the first wing rib 11, and fasten one end of the C-beam 16 to the first wing rib 11. At this time, the fourth wing rib 14 is hung on the main beam 15;

[0066] Step 5: Apply glue to the end of the rudder assembly 17 and the hole for assembly with the first wing rib 11, and fasten one end of the rudder assembly 17 to the first wing rib 11. At this time, the fourth wing rib 14 is hung on the main beam 15;

[0067] Step 6: Apply glue to the rudder assembly 17, the other end of the C-beam 16 and the holes of the fourth wing rib 14 assembled therewith, fasten the other end of the C-beam 16 to the fourth wing rib 14, and fasten the other end of the rudder assembly 17 to the fourth wing rib 14;

[0068] Step 7: Rotate the main beam 15, adjust the position of the end of the wing rib to locate the fourth wing rib 14 and the main beam 15, and insert the wing rib into the wing rib slot;

[0069] Step 8: Rotate the main beam 15 and move it 10mm in the axial direction, apply glue with a width of 10mm on the connection of the main beam 15 at the right end of the wing rib, and rotate the main beam 15 to return it to its original position;

[0070] Step 9: Use masking tape to wrap one end of the wing rib to fix it. Note that you should measure the size before fixing it, and add glue after curing for 12 hours.

[0071] Step 10: Apply glue to the assembly position of the head and leading edge of the wing rib, then install the leading edge and wrap masking tape around the corresponding position to fix it;

[0072] Step 11: After 24 hours, the masking paper can be removed and the excess part of the main beam 15 can be cut off to obtain the vertical tail assembly.

[0073] After the various components of the vertical tail are assembled and solidified, the vertical tail can also be rotated around the pin axis to achieve the purpose of flipping, making it easier to cover the skin and lay photovoltaic panels on the upper and lower sides of the vertical tail.

[0074] The present application can effectively ensure the wing shape accuracy of the vertical tail component assembly, improve assembly efficiency, reduce costs, and can accurately control the distance between each wing rib and the overall shape of the vertical tail.

[0075] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "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 application and simplifying the description, and do not indicate or imply that the referred device or element 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 application.

[0076] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An assembly tool for a vertical tail of an unmanned aerial vehicle, characterized in that: include: A support (1), two cross beams and two longitudinal beams, wherein the cross beams and the longitudinal beams are horizontally arranged and fixedly mounted on the support (1), positioning pins (8) and rear beam support grooves are arranged on the two cross beams in a relative manner, and the two ends of the main beam (15) of the vertical tail of the unmanned aerial vehicle are respectively mounted on the positioning pins (8) and the rear beam support grooves, and a plurality of wing rib slots are arranged on any of the longitudinal beams, and a plurality of wing ribs of the vertical tail of the unmanned aerial vehicle are respectively placed on the wing rib slots, and a height adjustment device is arranged at the bottom of the support (1).

2. The assembly tool for the vertical tail of an unmanned aerial vehicle according to claim 1, characterized in that: The support (1) is welded from a plurality of square tube steels, the crossbeam comprises a first crossbeam (2) and a second crossbeam (5) arranged in parallel, a threaded hole is provided at the top of the support (1), corresponding countersunk holes are provided at both ends of the first crossbeam (2) and the second crossbeam (5), and the first crossbeam (2) and the second crossbeam (5) are respectively fastened and mounted on the support (1) by bolts.

3. The assembly tool for the vertical tail of an unmanned aerial vehicle according to claim 2, characterized in that: A horizontal positioning pin hole is provided in the middle of the first crossbeam (2), and the positioning pin (8) passes through the positioning pin hole and is horizontally installed on the first crossbeam (2).

4. The assembly tool for the vertical tail of an unmanned aerial vehicle according to claim 3, characterized in that: The positioning pin (8) comprises three sections of cylinders with different outer diameters, and the outer diameter of the cylinder gradually decreases from the first crossbeam (2) to the second crossbeam (5).

5. The assembly tool for the vertical tail of an unmanned aerial vehicle according to claim 2, characterized in that: The second cross beam (5) is provided with the rear beam support groove, and the rear beam support groove is semi-cylindrical.

6. The assembly tool for the vertical tail of an unmanned aerial vehicle according to claim 1, characterized in that: The longitudinal beam comprises a first longitudinal beam (3) and a second longitudinal beam (4), and the two ends of the first longitudinal beam (3) are respectively fastened to the ends of the first cross beam (2) and the second cross beam (5) through angle irons (6); The two ends of the second longitudinal beam (4) are respectively fastened to the ends of the first cross beam (2) and the second cross beam (5) through angle irons (6).

7. The assembly tool for the vertical tail of an unmanned aerial vehicle according to claim 1, characterized in that: The height adjustment device comprises an adjustment bolt (7), and a plurality of the adjustment bolts (7) are symmetrically distributed at the bottom of the support (1).

8. An assembly process of a vertical tail of an unmanned aerial vehicle, characterized in that: The assembly tool for the vertical tail of the UAV according to any one of claims 1 to 7 comprises the following steps: Step 1: Install the assembly tooling of the vertical tail of the UAV, adjust the height by adjusting the height adjustment device, and measure the level with a level measuring instrument; Step 2: The wing ribs include a first wing rib (11), a second wing rib (12), a third wing rib (13) and a fourth wing rib (14). The first wing rib (11), the second wing rib (12), the third wing rib (13) and the fourth wing rib (14) are sequentially passed through the main beam (15), an end of the main beam (15) close to the first wing rib (11) is inserted into the positioning pin (8), and an end of the main beam (15) close to the fourth wing rib (14) is placed on the rear beam support groove; Step 3: Fasten and install the C-shaped beam (16) on one side of the second wing rib (12) and the third wing rib (13); Step 4: fastening one end of the C-shaped beam (16) to the first wing rib (11); Step 5: fastening one end of the control surface assembly (17) onto the first wing rib (11); Step 6: Fasten the other end of the C-beam (16) to the fourth wing rib (14), and fasten the other end of the control surface assembly (17) to the fourth wing rib (14); Step 7: rotating the main beam (15), adjusting the position of the wing rib and the main beam (15), and inserting the wing rib into the wing rib slot; Step 8: Rotate the main beam (15) to move along the axial direction, apply glue to the connection of the main beam (15) at the right end of the wing rib, rotate the main beam (15), and return the main beam (15) to its original position.

9. The assembly process of the vertical tail of the UAV as claimed in claim 8, characterized in that: The following steps are also included: Step 9: Wrap one end of the wing rib with masking paper to fix it, and add glue after curing; Step 10: Apply glue to the assembly position of the head and leading edge of the wing rib, then install the leading edge and wrap masking tape around the corresponding position to fix it; Step 11: Remove the masking paper and cut the main beam (15) to obtain the vertical tail assembly.

10. The assembly process of the vertical tail of the UAV as claimed in claim 8, characterized in that: Two assembly holes are arranged in the middle of the C-shaped beam (16), and the ends of the second wing rib (12) and the third wing rib (13) are respectively glued and connected to the C-shaped beam (16) through the assembly holes.

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