A bonding device for a wing spar

Abstract

A kind of bonding device for wing skeleton beam, it includes upper die with first thickness control block, a plurality of positioning pins arranged in one end of upper die, first flange bushing sleeved on positioning pin, skeleton beam inserted with positioning pin, lower die with positioning block and abutting with skeleton beam, second flange bushing sleeved on positioning block, second thickness control block arranged in one end of lower die and corresponding connection with first thickness control block, perforation arranged in one end of skeleton beam, air passage arranged in lower die, a plurality of sub-holes arranged in air passage, vacuum suction block screwed with lower die and sealing air passage, assembly block arranged in one end of lower die and with fixed clamp, connecting buckle arranged in one end of fixed clamp, fixed block arranged in one end of upper die and with bending block, third thickness control block arranged between adjacent two positioning pins;Wherein, the skeleton beam is fixed between the upper die and the lower die, the connecting buckle is used for clamping the bending block, and the upper die and the lower die are fixedly connected through the connecting buckle;The embodiment improves operation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a bonding device for wing frame beams. Background Technology

[0002] In the field of aerospace manufacturing, the bonding process of wing frame spars is crucial, directly affecting the structural strength and flight performance of the wing. However, traditional bonding devices, when bonding two surfaces simultaneously, suffer from uneven bonding thickness due to a lack of effective thickness control methods. This unevenness directly impacts the mechanical properties and stability of the bonded area. When the bonding thickness is inconsistent, the stress distribution at the bonded area becomes uneven under external forces, easily leading to stress concentration in thinner areas, thereby reducing the overall load-bearing capacity and reliability of the structure.

[0003] Furthermore, uneven adhesive thickness can cause significant difficulties in subsequent assembly. In industrial production, the assembly of various components typically has strict dimensional accuracy requirements. If the adhesive thickness is uneven, the actual dimensions of the components will deviate from the design dimensions, making subsequent assembly impossible. Once assembly fails, the components need to be reprocessed or adjusted, which not only increases production costs but also extends the production cycle, severely impacting production efficiency.

[0004] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a bonding device for wing frame beams that can effectively solve the above-mentioned technical problems.

[0006] To achieve the purpose of this utility model, the following technical solution is adopted: A bonding device for a wing frame beam, characterized in that it comprises: an upper mold with a first thickness control block, a plurality of positioning pins at one end of the upper mold, a first flange bushing sleeved on the positioning pins, a frame beam inserted into the positioning pins, a lower mold abutting against the frame beam and having a positioning block, a second flange bushing sleeved on the positioning block, a second thickness control block at one end of the lower mold and correspondingly connected to the first thickness control block, a through hole at one end of the frame beam, a vent groove at the lower mold, a plurality of sub-holes in the vent groove, a vacuum adsorption block screwed to the lower mold and sealing the vent groove, an assembly block at one end of the lower mold and having a fixing clip, a connecting buckle at one end of the fixing clip, a fixing block at one end of the upper mold and having a bending block, and a third thickness control block between two adjacent positioning pins; wherein the frame beam is fixed between the upper mold and the lower mold, the connecting buckle is used to engage the bending block, and the upper mold and the lower mold are fixedly connected by the connecting buckle.

[0007] Furthermore, a third thickness control block is provided between any two adjacent positioning pins.

[0008] Furthermore, a first flange bushing is fitted onto each of the locating pins.

[0009] Furthermore, the upper mold is provided with a positioning sleeve at the end near the first thickness control block, and the lower mold is provided with a positioning post for positioning and inserting the positioning sleeve at the end near the second thickness control block.

[0010] Furthermore, both the lower mold and the upper mold are made of aluminum alloy, and the surfaces of the lower mold and the upper mold are coated with polytetrafluoroethylene.

[0011] Furthermore, both the first and second thickness control blocks are made of metal steel, and both have the same rectangular cross-sectional shape.

[0012] Furthermore, the material of the third thickness control block is aluminum alloy.

[0013] Furthermore, the positioning pin is a cylindrical pin, and the number of positioning pins matches the number of ventilation slots.

[0014] Furthermore, the cross-sectional shape of the ventilation groove is circular.

[0015] Furthermore, at least four ventilation slots and at least four positioning pins are provided.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In this embodiment, the cooperation of three thickness control blocks with the cooperation of the venting groove and the positioning pin reduces the flange bushing position deviation and effectively reduces the double-sided adhesive thickness deviation, thereby improving the operating efficiency. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 This is an exploded view of the present invention.

[0020] Figure 3 This is a schematic diagram of the assembly structure of the lower mold of this utility model.

[0021] Figure 4 This is a schematic diagram of the assembly structure of the upper mold of this utility model.

[0022] Figure 5 Schematic diagram of the lower mold of this utility model In the diagram: 1. Upper mold; 2. Positioning pin; 3. Lower mold; 4. Third thickness control block; 5. Vacuum adsorption block; 10. Frame beam; 11. Fixing block; 12. Bending block; 13. Perforation; 15. First thickness control block; 16. Positioning sleeve; 20. First flange bushing; 30. Positioning block; 31. Assembly block; 32. Fixing clamp; 33. Connecting buckle; 34. Vent groove; 35. Second thickness control block; 36. Second flange bushing; 37. Subhole; 38. Positioning post. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0025] like Figures 1 to 5As shown, a bonding device for a wing frame beam includes an upper mold 1 with a first thickness control block 15, a plurality of positioning pins 2 at one end of the upper mold 1, a first flange bushing 20 sleeved on the positioning pins 2, a frame beam 10 inserted into the positioning pins 2, a lower mold 3 abutting against the frame beam 10 and having a positioning block 30, a second flange bushing 36 sleeved on the positioning block 30, a second thickness control block 35 at one end of the lower mold 3 and correspondingly connected to the first thickness control block 15, a through hole 13 at one end of the frame beam 10, and a venting groove 34 at the lower mold 3. The system includes several sub-holes 37 located in the ventilation groove 34, a vacuum adsorption block 5 that is detachably screwed to the lower mold 3 and can seal the ventilation groove 34, an assembly block 31 located at one end of the lower mold 3 and equipped with a fixing clip 32, a connecting buckle 33 located at one end of the fixing clip 32, a fixing block 11 located at one end of the upper mold 1 and equipped with a bending block 12, and a third thickness control block 4 located between two adjacent positioning pins 2; wherein, the skeleton beam 10 is fixed between the upper mold 1 and the lower mold 3, the connecting buckle 33 is used to snap the bending block 12, and the upper mold 1 and the lower mold 3 are fixedly connected by the connecting buckle 33.

[0026] Specifically, at least four ventilation slots 34 and at least four positioning pins 2 are provided. In one embodiment, four ventilation slots 34 are provided, evenly distributed on the lower mold 3, and each of the four ventilation slots 34 is used to connect to an external vacuum generator. Two fixing blocks 11 are provided, which are respectively fixed to both ends of the upper mold 1. Two assembly blocks 31 are provided, which are respectively located at both ends of the lower mold 3, and the assembly blocks 31 are correspondingly matched with the fixing blocks 11. Two first thickness control blocks 15 are provided, and the two first thickness control blocks 15 are respectively located at both ends of the lower mold 3. Thickness control blocks 15 are respectively located at both ends of one side of the upper mold 1. There are two second thickness control blocks 35, and the two second thickness control blocks 35 are respectively located at both ends of one side of the lower mold 3. The two first thickness control blocks 15 are used to abut against the two second thickness control blocks 35. There are four positioning pins 2, which are evenly fixed on the upper mold 1. The position of the positioning pins 2 corresponds to the position of the venting groove 34. All four positioning pins 2 penetrate the upper mold 1. A third thickness control block 4 is provided between any two adjacent positioning pins 2. A first flange bushing 20 is fitted on any positioning pin 2.

[0027] In actual assembly, the first flange bushing 20 is fitted into the positioning pin 2, ensuring that one side of the first flange bushing 20 and one side of the first thickness control block 15 are in the same plane. Adhesive is evenly applied to the outer surface of the first flange bushing 20 using a glue gun, and the first flange bushing 20 is passed through the through hole 13 and slowly pressed down vertically until the bottom surface of the skeleton beam 10 contacts the upper surface of the first thickness control block 15, completing the initial positioning of the lower adhesive surface, so that the skeleton beam 10 is snapped onto one side of the upper mold 1. Then, the second flange bushing 36 is placed on the positioning block 30, the vacuum suction block 5 is removed, and a vacuum generator is connected to the vent groove 34. Suction is generated through the sub-hole 37 to tightly adhere and fix the second flange bushing 36 to the lower mold 3. Adhesive is evenly applied to the outer surface of the second flange bushing 36 using a glue gun. The lower mold 36 is then held in place. The lower mold 3 is pressed against one side of the skeleton beam 10 and slowly lowered until it is completely in contact with the skeleton beam 10, so that the assembly block 31 and the fixing block 11 are matched and correspond, and the first thickness control block 15 and the second thickness control block 35 are tightly abutted. The two connecting buckles 33 are respectively sleeved on the bent part of the bending block 12 on the same side. Pressing the fixing clip 32 causes the connecting buckles 33 to move upward and then fasten the bending block 12, so that the upper mold 1 is fixedly connected to the lower mold 3 through the snap-fit ​​of the connecting buckles 33 and the bending block 12, so that the upper mold 1, the skeleton beam 10 and the lower mold 3 form a fixed connection structure. After the adhesive cures, the bonding is completed. In this embodiment, through the mutual cooperation of the three thickness control blocks and the mutual cooperation of the vent groove 34 and the positioning pin 2, the position deviation of the flange bushing is reduced, and the thickness deviation of the double-sided bonding is effectively reduced, thereby improving the operating efficiency.

[0028] It is worth noting that the wing connection requires high-precision fitting to avoid assembly failure due to adhesive bonding accuracy issues. Therefore, the thickness control positions of the first thickness control block 15, the second thickness control block 35, and the third thickness control block 4 are all obtained by high-precision CNC machining. In this embodiment, the accuracy is within 0.05mm. Thickness control refers to controlling the thickness of the adhesive layer to ensure the high precision requirements of the connecting corner pieces in the assembly process.

[0029] In one embodiment, the cross-sectional shape of the venting groove 34 is circular.

[0030] In one embodiment, the positioning pin 2 is a cylindrical pin, and the number of positioning pins 2 matches the number of ventilation slots 34.

[0031] In one embodiment, the upper mold 1 is provided with a positioning sleeve 16 at one end near the first thickness control block 15, and the lower mold 3 is provided with a positioning post 38 for positioning and inserting the positioning sleeve 16 at one end near the second thickness control block 35. The positioning post 38 and the positioning sleeve 16 are positioned and inserted, which facilitates the mold closing and fixing of the upper mold 1 and the lower mold 3 and improves the bonding efficiency.

[0032] In one embodiment, the first thickness control block 15 and the second thickness control block 35 are both made of metal steel, and the cross-sectional shape of the first thickness control block 15 and the second thickness control block 35 is the same, both being rectangular. The third thickness control block 4 is made of the same material as the upper mold 1, both being aluminum alloy. The first thickness control block 15 and the third thickness control block 4 are both detachably screwed to the upper mold 1. The third thickness control block 4 and the upper mold 1 are integrally formed, making it convenient for users to replace.

[0033] In one embodiment, both the lower mold 3 and the upper mold 1 are made of aluminum alloy, and the surfaces of the lower mold 3 and the upper mold 1 are coated with polytetrafluoroethylene to prevent the adhesive from sticking together.

[0034] Operating principle: Insert the first flange bushing 20 into the positioning pin 2, ensuring one side of the first flange bushing 20 is flush with one side of the first thickness control block 15. Apply adhesive evenly to the outer surface of the first flange bushing 20 using a glue gun, and then press the first flange bushing 20 through the through hole 13 vertically until the bottom surface of the skeleton beam 10 contacts the upper surface of the first thickness control block 15, completing the initial positioning of the lower adhesive surface and allowing the skeleton beam 10 to be snapped into one side of the upper mold 1. Subsequently, place the second flange bushing 36 on the positioning block 30, remove the vacuum adsorption block 5, connect the venting groove 34 to an external vacuum generator, and generate suction through the sub-hole 37 to tightly adsorb and fix the second flange bushing 36 to the lower mold. On mold 3, apply adhesive evenly to the outer surface of the second flange bushing 36 using a glue gun; hold the lower mold 3 and press it against one side of the skeleton beam 10, slowly lowering it until the lower mold 3 and the skeleton beam 10 are completely in contact, so that the assembly block 31 and the fixing block 11 are matched and correspond, the first thickness control block 15 and the second thickness control block 35 are in close contact, and the two connecting buckles 33 are respectively sleeved on the bent part of the bending block 12 on the same side. Press the fixing clip 32 to move the connecting buckle 33 upward and then fasten the bending block 12, so that the upper mold 1 is fixedly connected to the lower mold 3 through the snap-fit ​​of the connecting buckle 33 and the bending block 12, so that the upper mold 1, the skeleton beam 10 and the lower mold 3 form a fixed connection structure. After the adhesive cures, the bonding is completed.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A bonding device for a wing frame spars, characterized in that: The upper mold (1) includes a first thickness control block (15), several positioning pins (2) located at one end of the upper mold (1), a first flange bushing (20) sleeved on the positioning pins (2), a skeleton beam (10) inserted into the positioning pins (2), a lower mold (3) abutting against the skeleton beam (10) and having a positioning block (30), a second flange bushing (36) sleeved on the positioning block (30), a second thickness control block (35) located at one end of the lower mold (3) and correspondingly connected to the first thickness control block (15), a through hole (13) located at one end of the skeleton beam (10), a vent groove (34) located in the lower mold (3), and several [missing information] located in the vent groove (34). The components include a sub-hole (37), a vacuum adsorption block (5) screwed to the lower mold (3) and sealing the ventilation groove (34), an assembly block (31) with a fixing clip (32) located at one end of the lower mold (3), a connecting buckle (33) located at one end of the fixing clip (32), a fixing block (11) with a bending block (12) located at one end of the upper mold (1), and a third thickness control block (4) located between two adjacent positioning pins (2); wherein, the skeleton beam (10) is fixed between the upper mold (1) and the lower mold (3), the connecting buckle (33) is used to snap the bending block (12), and the upper mold (1) and the lower mold (3) are fixedly connected by the connecting buckle (33).

2. The bonding device for a wing frame beam as described in claim 1, characterized in that: A third thickness control block (4) is provided between any two adjacent positioning pins (2).

3. The bonding device for a wing frame beam as described in claim 2, characterized in that: Each of the locating pins (2) is fitted with a first flange bushing (20).

4. The bonding device for a wing frame beam as described in claim 3, characterized in that: The upper mold (1) is provided with a positioning sleeve (16) at one end near the first thickness control block (15), and the lower mold (3) is provided with a positioning post (38) for positioning and inserting the positioning sleeve (16) at one end near the second thickness control block (35).

5. The bonding device for a wing frame beam as described in claim 4, characterized in that: The lower mold (3) and the upper mold (1) are both made of aluminum alloy, and the surfaces of the lower mold (3) and the upper mold (1) are coated with polytetrafluoroethylene.

6. The bonding device for a wing frame beam as described in claim 5, characterized in that: The first thickness control block (15) and the second thickness control block (35) are both made of metal steel, and the cross-sectional shape of the first thickness control block (15) and the second thickness control block (35) is the same, both being rectangular.

7. The bonding device for a wing frame spars as described in claim 6, characterized in that: The material of the third thickness control block (4) is aluminum alloy.

8. The bonding device for a wing frame spars as described in claim 7, characterized in that: The positioning pin (2) is a cylindrical pin, and the number of positioning pins (2) matches the number of ventilation slots (34).

9. The bonding device for a wing frame beam as described in claim 8, characterized in that: The cross-sectional shape of the ventilation groove (34) is circular.

10. The bonding device for a wing frame beam as described in claim 1, characterized in that: The ventilation slots (34) are provided in at least four places, and the positioning pins (2) are provided in at least four places.

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