CN117922837A - Assembly tool and assembly flow for general assembly of large aspect ratio unmanned aerial vehicle wing - Google Patents
Assembly tool and assembly flow for general assembly of large aspect ratio unmanned aerial vehicle wing Download PDFInfo
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- CN117922837A CN117922837A CN202211326597.XA CN202211326597A CN117922837A CN 117922837 A CN117922837 A CN 117922837A CN 202211326597 A CN202211326597 A CN 202211326597A CN 117922837 A CN117922837 A CN 117922837A
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- 239000003292 glue Substances 0.000 claims description 25
- 230000008859 change Effects 0.000 claims description 11
- 230000001680 brushing effect Effects 0.000 claims description 7
- 238000011417 postcuring Methods 0.000 claims description 3
- 230000002950 deficient Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
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Abstract
The invention provides an assembly tool and an assembly process for the total assembly of a large-aspect-ratio unmanned aerial vehicle wing, wherein the assembly tool comprises an assembly structural member; the assembly structural member can be modified and/or expanded according to the characteristics of the high aspect ratio unmanned aerial vehicle wing; the assembly structural members are configured in a plurality according to the length of the unmanned aerial vehicle wing with the large aspect ratio; the assembly structural members can adjust the self-horizontal height, so that the horizontal heights of the assembly fixture formed by combining a plurality of assembly structural members are consistent with each other. The assembly tooling can ensure the wing-shaped precision of the assembly of the unmanned aerial vehicle wing with a large aspect ratio, and the assembly process flow of the assembly tooling can greatly improve the assembly efficiency, reduce the cost and save the time, can precisely control the distance between each wing rib and can precisely control the pitch angle of the wing.
Description
Technical Field
The invention relates to the field of assembly tools for large-aspect-ratio unmanned aerial vehicle wings, in particular to an assembly tool and an assembly process for large-aspect-ratio unmanned aerial vehicle wings.
Background
In the development and manufacturing process of the high aspect ratio unmanned aerial vehicle, the whole assembly of the wing is to connect the load section, the fuselage section, the transition section and the upper reverse section into the high aspect ratio unmanned aerial vehicle wing according to design requirements. The usual assembly method is to assemble the components first, and the assembly cost of the components depends on the assembly method, which in turn affects the assembly time and the assembly quality. In the part manufacturing process, the traditional assembly sequence planning is to plan the assembly sequence of the product according to the working experience and intuition of an assembler, has larger subjectivity and uncertainty, can not ensure the assembly quality, and has long assembly period and high cost. Reasonable assembly process planning can significantly reduce the lifecycle and manufacturing costs of product development. On the other hand, the unmanned aerial vehicle wing with the large aspect ratio has more component parts, longer length, easy deformation and difficult overall appearance control after assembly; the attitude control product has high requirements on wing accuracy and stability, and the final quality of the large-aspect-ratio unmanned aerial vehicle wing is directly influenced by the assembly fixture, so that high requirements on assembly are provided.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an assembly tool and an assembly flow for the total assembly of the large-aspect-ratio unmanned aerial vehicle wing, and the assembly tool can be used for completing the assembly from a part to the wing, so that the one-time total assembly of the large-aspect-ratio unmanned aerial vehicle wing can be realized, the design precision requirement of the wing can be met, and meanwhile, the dependence on the working experience and subjective judgment of an assembler is greatly reduced.
The assembly fixture for the total assembly of the large-aspect-ratio unmanned aerial vehicle wing comprises an assembly structural member;
the assembly structural member can be modified/expanded according to the characteristics of the high aspect ratio unmanned aerial vehicle wing;
The assembly structural member can adjust the horizontal height, and wing-shaped precision assembled by the large aspect ratio unmanned aerial vehicle wing is guaranteed.
Preferably, the assembly structure comprises a support, a cross beam, a longitudinal beam and an adjusting bolt;
the cross beam is connected with the support;
The longitudinal beam is connected with the transverse beam;
The adjusting bolt is arranged at the bottom of the bracket; the adjusting bolt can realize the adjustment of the horizontal height of the assembly tool.
Preferably, the cross beam is provided with a first screw hole and a matching groove which are connected with the longitudinal beam, a first counter bore which is connected with the support, and a supporting groove for supporting the main/auxiliary beam of the high aspect ratio unmanned aerial vehicle.
Preferably, the longitudinal beam is provided with a rib clamping groove connected with the wing of the unmanned aerial vehicle with the large aspect ratio and a second counter bore connected with the cross beam.
Preferably, the support groove adopts a semi-cylindrical support groove.
Preferably, the supporting grooves on the cross beams can be modified/expanded according to the outer diameter change of the main/auxiliary beams of the unmanned aerial vehicle with the supporting large aspect ratio.
Preferably, the position of the rib clamping groove can be changed according to the assembling position among the ribs, and the profile of the rib clamping groove is the same as that of the rib supporting position.
Preferably, the rib clamping groove can be correspondingly modified/expanded according to the change of the shape of the wing rib of the large-aspect-ratio unmanned aerial vehicle and the change of the interval between the wing ribs of the large-aspect-ratio unmanned aerial vehicle.
The invention also provides a process flow for assembling the large-aspect-ratio unmanned aerial vehicle wing, which adopts the assembly tool for the general assembly of the large-aspect-ratio unmanned aerial vehicle wing, and further comprises the following steps:
Step one, installing a total assembly tool, rotating an adjusting bolt to adjust the horizontal height of the assembly tool, and measuring the horizontal height by using a horizontal measuring instrument;
Step two, carrying out sectional assembly on the high aspect ratio unmanned aerial vehicle wing according to the structural characteristics of the high aspect ratio unmanned aerial vehicle wing;
Brushing glue at the connection position of the main beam and the auxiliary beam and the rib, curing for 12 hours, and then repairing glue at the position of the joint where the glue is lacking;
Brushing glue at the assembling positions of the front and rear edges and the ribs, and performing post curing for 12 hours after the assembling of the front and rear edges;
Checking the connection part and supplementing glue at the glue-deficient place.
Further, in the first step, the horizontal tolerance of the horizontal measurement is less than 1mm.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention adopts a plurality of assembly structural members to automatically adjust the horizontal height, and the assembly tool formed by splicing the plurality of assembly structural members can control the horizontal height of the assembly work within a certain precision, ensure the wing precision of the assembly of the unmanned aerial vehicle wing with a large aspect ratio, improve the assembly efficiency, reduce the cost and save the time, can precisely control the distance between each wing rib, and can precisely control the pitch angle of the wing.
2. According to the invention, through strictly controlling the horizontal height of the assembly tool, and simultaneously, all cabin sections of the large-aspect-ratio unmanned aerial vehicle are finished on the assembly tool at one time, the assembly precision can be effectively improved, and the elevation angle of the large-aspect-ratio unmanned aerial vehicle is ensured to be within an allowable error range.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is an overall structure diagram of an assembly fixture for a high aspect ratio unmanned aerial vehicle wing of the present invention;
FIG. 2 is a block diagram of a mount according to the present invention;
FIG. 3 is a cross-beam block diagram of the present invention;
FIG. 4 is a block diagram of a stringer of the present invention;
FIG. 5 is a block diagram of a high aspect ratio unmanned aerial vehicle wing;
FIG. 6 is a schematic structural view of an assembled embodiment of a high aspect ratio unmanned aircraft wing.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The invention provides an assembly fixture for the total assembly of wings of a large-aspect-ratio unmanned aerial vehicle, which comprises an assembly structural member; the assembly structural member can be modified and/or expanded according to the characteristics of the high aspect ratio unmanned aerial vehicle wing; the assembly structural members are configured in a plurality according to the length of the unmanned aerial vehicle wing with the large aspect ratio; the assembly structural members can adjust the self-horizontal height, so that the horizontal heights of the assembly fixture formed by combining a plurality of assembly structural members are consistent with each other. The horizontal height can be adjusted independently by a plurality of assembly structural members, and the assembly fixture formed by splicing the plurality of assembly structural members can control the horizontal height of assembly work in a certain precision, so that the wing-shaped precision of the large-aspect-ratio unmanned aerial vehicle wing assembly is ensured, the assembly efficiency is improved, the cost is reduced and the time is saved.
Specifically, the assembly fixture is provided with 9 assembly structural members, and each assembly structural member comprises a support, a cross beam, a longitudinal beam, a screw and an adjusting bolt;
the cross beam is connected with the support through a screw;
the longitudinal beam is connected with the cross beam through a screw;
The adjusting bolt is arranged at the bottom of the bracket; the adjusting bolt can realize the adjustment of the horizontal height of the assembly fixture.
The cross beam is provided with a first screw hole 1 and a matching groove 4 which are connected with the longitudinal beam, a first counter bore 3 which is connected with the support, and a supporting groove 2 for supporting the main/auxiliary beam of the high aspect ratio unmanned aerial vehicle; the supporting groove 2 adopts a semi-cylindrical supporting groove; in particular, the supporting groove 2 on the cross beam can be modified/expanded according to the outer diameter change of the main beam and the auxiliary beam of the unmanned aerial vehicle with the supporting large aspect ratio; specifically, the shape and size of the supporting groove 2 on the cross beam depend on the shape and size of the main/auxiliary beam of the high aspect ratio unmanned aerial vehicle;
The longitudinal beam is provided with a rib clamping groove 5, a screw hole and a second counter bore 6 connected with the cross beam;
The position of the rib clamping groove 5 changes with the assembling position among the ribs, and the molded surface of the rib clamping groove 5 is the same as the molded surface of the rib supporting position. In particular, the rib clamping groove 5 can be correspondingly modified/expanded according to the shape and size change of the wing ribs of the large-aspect-ratio unmanned aerial vehicle and the interval change between the wing ribs of the large-aspect-ratio unmanned aerial vehicle; in particular, the modification/expansion may be a change in the shape and pitch of the rib pockets 5 and a change in the number of rib pockets 5. Further, the shape and size of the rib clamping grooves 5 on the longitudinal beam and the spacing between the rib clamping grooves 5 depend on the shape and size of the wing ribs of the high aspect ratio unmanned aerial vehicle and the spacing between the wing ribs of the high aspect ratio unmanned aerial vehicle; therefore, the assembly fixture not only can accurately control the distance between the ribs, but also can accurately control the pitch angle of the wing.
According to the structural characteristics of the high aspect ratio unmanned aerial vehicle wing, the high aspect ratio unmanned aerial vehicle wing is divided into a plurality of sections; for example, the wing of the unmanned aerial vehicle with a large aspect ratio for a bilateral symmetry structure can be divided into a load section, a fuselage section, a transition section and an upper reverse section, as shown in fig. 5.
The invention also provides a process flow for assembling the high aspect ratio unmanned aerial vehicle wing, which comprises the following steps:
firstly, installing an assembly tool, rotating an adjusting bolt to adjust the horizontal height of the assembly tool, and measuring the horizontal height by using a horizontal measuring instrument, wherein the length of the assembly tool is 19m, and the horizontal tolerance is less than 1mm;
Step two, carrying out sectional assembly on the high aspect ratio unmanned aerial vehicle wing according to the structural characteristics of the high aspect ratio unmanned aerial vehicle wing; specifically, according to the structure of the wing design of the large aspect ratio unmanned aerial vehicle, parts of all the sections (namely the load section, the fuselage section, the transition section and the upper reverse section) are correspondingly placed in respective positions according to design requirements, and all the sections are assembled on an assembly tool respectively; when in assembly, the wing ribs are worn on the main beam and the auxiliary beam at one time according to the design requirement.
Thirdly, according to design requirements, the connection between the wing ribs and the main beam and the auxiliary beam is connected in a cementing mode, so that the cementing part is brushed with glue, and after curing for 12 hours, the glue is added to the part where the connection part lacks glue; the assembly fixture is used for ensuring that the relative positions between the wing ribs and the main beam and the auxiliary beam are unchanged.
Brushing glue at the assembling positions of the front and rear edges of the wing and the wing ribs, and performing post curing for 12 hours after the assembling of the front and rear edges; the assembly tool can ensure the assembly of the wing shape of the wing rib, and the front edge and the rear edge of the wing are connected with the wing rib, so that the assembly appearance of the front edge and the rear edge is consistent with the design, and the aerodynamic characteristics are ensured.
And fifthly, glue is supplemented at the positions where the front edge and the rear edge of the wing are connected with the wing ribs and lack of glue. And checking again and repairing the glue to ensure firm connection between the parts.
The working principle of the invention is as follows:
The invention relates to a wing total assembly tool of a large-aspect-ratio unmanned aerial vehicle, which is shown in fig. 1 and mainly comprises 9 sections, and is characterized in that each section comprises a support, a cross beam, a longitudinal beam, a screw and an adjusting bolt, wherein the cross beam is connected with the support through the screw, and the longitudinal beam is connected with the cross beam through the screw. The total assembly fixture comprises 10 cross beams, 14 longitudinal beams and 10 supporting seats and adjusting bolts below the supporting seats. The support has two dimensions, the crossbeam has 5 types, and the longeron has 14 types.
The support of the large aspect ratio unmanned aerial vehicle wing total assembly fixture is shown in fig. 2 (a, b). The support (a) is the same type as the support (b) and is different in size.
As shown in fig. 3 (a, b, c, d, e), the 5 cross beams are characterized in that the cross beams are provided with a first screw hole 1 and a matching groove 4 which are connected with the longitudinal beams, a first counter bore 3 which is connected with the support, and a semi-cylindrical supporting groove 2 for supporting the main beam and the auxiliary beam of the unmanned aerial vehicle with the large aspect ratio.
As shown in fig. 4 (a, b, c, d, e, f, g, h, i, j, k, l, m, n), the 14 stringers are characterized in that rib clamping grooves 5 and screw holes are formed in the stringers, the positions of the rib clamping grooves 5 are changed along with the assembling positions among ribs, the molded surface of each rib clamping groove 5 is identical to the molded surface of the rib supporting position, counter bores are formed in the stringers, and the stringers are connected with the cross beams through screws.
The assembly fixture has a height level adjusting function, and the adjusting function is realized by an adjusting bolt.
Fig. 5 is a high aspect ratio unmanned aerial vehicle wing of an assembled embodiment, the high aspect ratio unmanned aerial vehicle wing being of bilateral symmetry structure including a load section, a fuselage section, a transition section, and an upper counter section.
The embodiment of the wing assembly process flow of the unmanned aerial vehicle with the large aspect ratio comprises the following steps:
firstly, installing a total assembly tool, rotating an adjusting bolt to adjust the height, and measuring the level by a level measuring instrument, wherein the length of the total assembly tool is 19m, and the horizontal tolerance is less than 1mm;
Step two, correspondingly placing the parts of each section into respective positions according to design requirements, and respectively assembling each section on a total assembly tool, wherein the assembly process of each section is not described in detail;
Brushing the glue on the part needing cementing, curing for 12 hours, and repairing the glue on the part lacking glue;
brushing glue at the assembling positions of the front and rear edges and the ribs, and curing the assembling front and rear edges for 12 hours;
and fifthly, glue is supplemented at the part where the glue is lacking.
The invention is not limited to the foregoing embodiments, and the large aspect ratio unmanned aerial vehicle wing assembly fixture and the assembly process flow provided by the invention can be modified or expanded according to the characteristics of the large aspect ratio unmanned aerial vehicle wing, so as to meet the modification or expansion of the assembly requirements, including but not limited to: the outer diameters of the main beam and the auxiliary beam are changed, the shape and the interval of the wing ribs are changed, and the number of the wing ribs is changed.
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. The assembly fixture for the wing assembly of the large-aspect-ratio unmanned aerial vehicle is characterized by comprising an assembly structural member;
The assembly structural member can be modified and/or expanded according to the characteristics of the high aspect ratio unmanned aerial vehicle wing;
The assembly structural members are configured in a plurality according to the length of the unmanned aerial vehicle wing with the large aspect ratio;
The assembly structural members can adjust the horizontal height of the assembly structural members, so that the horizontal heights of the assembly fixture formed by combining the assembly structural members are consistent with each other.
2. The assembly fixture for the total assembly of the wing of the high aspect ratio unmanned aerial vehicle according to claim 1, wherein the assembly structural member comprises a support, a cross beam, a longitudinal beam and an adjusting bolt;
the cross beam is connected with the support;
the longitudinal beam is connected with the transverse beam;
the adjusting bolt is arranged at the bottom of the bracket;
the adjusting bolt can realize the adjustment of the horizontal height of the assembly tool.
3. The assembly fixture for the total assembly of the high aspect ratio unmanned aerial vehicle wing according to claim 2, wherein the cross beam is provided with a first screw hole (1) and a matching groove (4) which are connected with the longitudinal beam, a first counter bore (3) which is connected with the support, and a supporting groove (2) which supports the main/auxiliary beam of the high aspect ratio unmanned aerial vehicle.
4. The assembly fixture for the total assembly of the high aspect ratio unmanned aerial vehicle wing according to claim 2, wherein the longitudinal beam is provided with a rib clamping groove (5) connected with the high aspect ratio unmanned aerial vehicle wing and a second counter bore (6) connected with the cross beam.
5. An assembly fixture for the total assembly of a high aspect ratio unmanned aerial vehicle wing according to claim 3, wherein the support groove (2) is a semi-cylindrical support groove.
6. An assembly fixture for the total assembly of a wing of a high aspect ratio unmanned aerial vehicle according to claim 3, wherein the supporting groove (2) on the cross beam can be modified and/or expanded according to the change of the outer diameter of the main/auxiliary beam of the supporting high aspect ratio unmanned aerial vehicle.
7. The assembly fixture for the total assembly of the high aspect ratio unmanned aerial vehicle wing according to claim 4, wherein the position of the rib clamping groove (5) can be changed according to the assembly position among the ribs, and the profile of the rib clamping groove (5) is the same as the profile of the rib supporting position.
8. The assembly fixture for the total assembly of the high aspect ratio unmanned aerial vehicle wing according to claim 4, wherein the wing rib clamping groove (5) can be correspondingly modified/expanded according to the change of the shape of the wing rib of the high aspect ratio unmanned aerial vehicle and the change of the interval between the wing ribs of the high aspect ratio unmanned aerial vehicle.
9. The assembly process flow for the large-aspect-ratio unmanned aerial vehicle wing is characterized by adopting the assembly fixture for the large-aspect-ratio unmanned aerial vehicle wing assembly, which is disclosed in any one of claims 1-8, and further comprises the following steps:
Step one, installing a total assembly tool, rotating an adjusting bolt to adjust the horizontal height of the assembly tool, and measuring the horizontal height by using a horizontal measuring instrument;
Step two, carrying out sectional assembly on the high aspect ratio unmanned aerial vehicle wing according to the structural characteristics of the high aspect ratio unmanned aerial vehicle wing;
Brushing glue at the connection position of the main beam and the auxiliary beam and the rib, curing for 12 hours, and then repairing glue at the position of the joint where the glue is lacking;
brushing glue at the assembling positions of the front and rear edges of the wing and the wing ribs, and performing post curing for 12 hours after the assembling of the front and rear edges;
Checking the connection part and supplementing glue at the glue-deficient place.
10. The high aspect ratio unmanned aerial vehicle wing assembly process flow of claim 9, wherein in step one, the horizontal tolerance of the horizontal measurement is less than 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211326597.XA CN117922837A (en) | 2022-10-25 | 2022-10-25 | Assembly tool and assembly flow for general assembly of large aspect ratio unmanned aerial vehicle wing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211326597.XA CN117922837A (en) | 2022-10-25 | 2022-10-25 | Assembly tool and assembly flow for general assembly of large aspect ratio unmanned aerial vehicle wing |
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| Publication Number | Publication Date |
|---|---|
| CN117922837A true CN117922837A (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211326597.XA Pending CN117922837A (en) | 2022-10-25 | 2022-10-25 | Assembly tool and assembly flow for general assembly of large aspect ratio unmanned aerial vehicle wing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117922837A (en) |
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2022
- 2022-10-25 CN CN202211326597.XA patent/CN117922837A/en active Pending
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