Aircraft semi-enclosed area indentation device

Abstract

The utility model provides a kind of aircraft semi-closed area indentation device, including upper mould, upper mould includes hexagonal head in top, the bottom end central part of hexagonal head is connected light pole section by conical transition section, and the end of light pole section is provided with threaded section;It further includes lower mould, the lower mould includes indentation block, and the central part of indentation block is processed with center hole, and the top of center hole is provided with inner taper section for and conical transition section cooperation, and indentation block is detachably installed in the top of top block, and the center of top block is processed with the threaded hole of threaded section cooperation.This tool can carry out indentation operation in semi-closed area, and can effectively solve the problem of difficulty and low efficiency of aircraft semi-closed area indentation.

Description

Technical Field

[0001] This utility model relates to the field of aviation equipment manufacturing, and in particular to a device for pressing in a semi-enclosed area of ​​an aircraft. Background Technology

[0002] During aircraft assembly, some skin and frame components are relatively thin, making conventional countersunk riveting unsuitable for connecting them. A denting process is required to achieve the connection between components. Currently, the common method involves using a male and female mold. The male mold is pressed against the outside of the skin, while the female mold lifts it from the other side, and the desired dent is formed by hand-tapping. However, this method is difficult to control due to the challenge of controlling the tapping and lifting force. Not only is the dent depth not always achieved in one attempt, requiring repeated trial cuts, but it also easily causes impact damage to the skin. When using hand-held denting pliers for skin denting, the limited operating space restricts their application to open areas of the structure. For deeper, non-open areas, hand-held denting pliers are unsuitable. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a device for pressing down in a semi-enclosed area of ​​an aircraft. This tool can perform pressing down operations in a semi-enclosed area, effectively solving the problems of difficulty and low efficiency in pressing down in a semi-enclosed area of ​​an aircraft.

[0004] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: A semi-enclosed area denting device for an aircraft includes an upper mold, which includes a hexagonal head located at the top. The bottom center of the hexagonal head is connected to a smooth rod section via a tapered transition section, and the end of the smooth rod section is provided with a threaded section. The lower mold also includes a denting block, which has a central hole machined in its center. The top of the central hole is provided with an inner tapered section for cooperating with the tapered transition section. The denting block is detachably mounted on the top of a top block, and the center of the top block is machined with a threaded hole for cooperating with the threaded section.

[0005] Preferably, the tapered transition section is consistent with the external shape of the head of the rivet or bolt to be assembled.

[0006] Preferably, the circumference of the pressure block is machined with uniformly arranged first pin holes, the top of the top block is provided with a connecting flange, and the connecting flange is machined with a second pin hole for mating with the first pin hole. The first pin hole and the second pin hole are connected by a pin engagement.

[0007] Preferably, the lower part of the top block is machined with a pin hole for the pin to pass through.

[0008] Preferably, the pressure block comes in various sizes and models.

[0009] The present invention has the following beneficial effects: 1. This utility model tool can perform pressure injection operations in a semi-enclosed area, effectively solving the problems of difficulty and low efficiency in pressure injection in semi-enclosed areas of aircraft.

[0010] 2. This device improves the quality of denting, ensuring the dent depth is achieved in one pass, and avoids the impact damage caused by traditional denting molds.

[0011] 3. By using the aforementioned denting block to support the skin part to be dented, the denting operation can be achieved by rotating the upper mold during the denting process.

[0012] 4. The aforementioned pin hole facilitates the subsequent fixing and installation of the pin, thereby ensuring that during use, rotating the pin can drive the top block to rotate, and the pressing operation can be achieved through the threaded engagement between the top block and the upper mold.

[0013] 5. By using different sizes and models, it can accommodate rivets and screws of different shapes and specifications, thereby enhancing the adaptability and flexibility of the device. Furthermore, the detachable mounting structure allows for convenient replacement as needed. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is the front view of the upper mold of this utility model.

[0016] Figure 2 This is a top view of the mold of this utility model.

[0017] Figure 3 This is a structural diagram of the assembly of the pressure block and the top block of this utility model.

[0018] In the diagram: 1. Upper mold; 2. Hexagonal head; 3. Tapered transition section; 4. Smooth rod section; 5. Threaded section; 6. Pressing block; 7. Connecting flange; 8. Center hole; 9. Inner tapered section; 10. First pin hole; 11. Second pin hole; 12. Threaded hole; 13. Top block; 14. Pin hole. Detailed Implementation

[0019] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0020] See Figure 1-3A cambering device for a semi-enclosed area of ​​an aircraft includes an upper mold 1, which includes a hexagonal head 2 at the top. The bottom center of the hexagonal head 2 is connected to a smooth rod section 4 via a tapered transition section 3. The end of the smooth rod section 4 is provided with a threaded section 5. The device also includes a lower mold, which includes a cambering block 6. The center of the cambering block 6 is machined with a central hole 8, and the top of the central hole 8 is provided with an inner tapered section 9 for engaging with the tapered transition section 3. The cambering block 6 is detachably mounted on the top of a top block 13, and the center of the top block 13 is machined with a threaded hole 12 for engaging with the threaded section 5. This tool can perform cambering operations in a semi-enclosed area, effectively solving the problems of difficult and inefficient cambering in semi-enclosed areas of aircraft. With the above structure, during the cambering operation, the upper mold 1 and the lower mold are aligned, the upper mold is inserted into the threaded hole 12 of the lower mold, and the inner hexagonal head 2 is clamped with an electric screwdriver or pneumatic wrench to screw the upper mold 1 into the lower mold, using the pre-tightening force of the bolts to camber. In certain special areas where the upper mold of the device cannot be turned normally, the denting can be achieved by tightening the pin into which the lower mold is inserted. This method is more efficient than manual tapping, does not require repeated denting attempts, and does not damage the skin; it has a wider range of applications than manual denting pliers, and can perform denting in semi-enclosed areas.

[0021] Furthermore, the tapered transition section 3 maintains the same external shape as the head of the rivet or bolt to be assembled. By adopting the above structural form, it can well accommodate different included angles of fasteners. For example, 90°, 100°, and 120° are commonly used.

[0022] Furthermore, the circumference of the pressing block 6 is machined with evenly arranged first pin holes 10, and the top of the top block 13 is provided with a connecting flange 7. The connecting flange 7 is machined with second pin holes 11 for engaging with the first pin holes 10. The first pin holes 10 and the second pin holes 11 are connected by pin engagement. The pressing block 6 can be used to support the skin part to be pressed, thereby ensuring that the pressing operation is achieved by rotating the upper mold 1 during the pressing process. The first pin holes 10 and the second pin holes 11 facilitate the rapid assembly and connection of the mold during subsequent mold installation.

[0023] Furthermore, the lower part of the top block 13 is machined with a pin hole 14 for a pin to pass through. The pin hole 14 facilitates the subsequent fixing and installation of the pin, thereby ensuring that during use, rotating the pin can drive the top block 13 to rotate, and the pressing operation can be achieved through the threaded engagement between the top block 13 and the upper mold 1.

[0024] Furthermore, the pressure block 6 is available in various sizes. By using different sizes, it can accommodate rivets and screws of different shapes and specifications, thereby enhancing the adaptability and flexibility of the device. Moreover, the detachable mounting structure allows for convenient replacement as needed.

[0025] The working process and principle of this utility model: 1. Before use, the working surfaces of the upper and lower molds of the device should be cleaned and the working surfaces should be observed for defects such as rust and cracks, whether the mold threads are damaged, and whether the pin holes and pin shaft holes can be used normally.

[0026] 2. When using the device, select the appropriate upper mold and pressure block according to the specifications of the fasteners to be assembled. The main selection factors include diameter, angle, and interlayer thickness. For example, when installing a 90° countersunk φ4mm rivet and riveting an interlayer thickness of 3.5mm, select an upper mold with a 90° protrusion angle and a diameter of 4mm, and a corresponding pressure block with an interlayer thickness of 3.5mm and an angle of 90°.

[0027] 3. When using, insert the upper mold into the pre-drilled hole, align it with the opening of the lower mold's dent block, insert it into the threaded end, and use an electric screwdriver to tighten the upper mold in the forward direction to press it firmly against the lower mold. The intermediate layer will adhere to the dent block due to the pre-tightening force, thus completing the denting. Then, use the electric screwdriver to loosen the upper mold in the reverse direction, remove the upper mold, and then proceed to the next denting position.

[0028] 4. When applying pressure in a semi-enclosed area: (1) The outer side is open and the inner side is semi-closed. The lower mold is fixed inside and the upper mold is inserted into the hole of the lower mold. By rotating the upper mold and tightening the device, the dent is completed.

[0029] (2) The outer side is semi-closed and the inner side is open. Pass the upper mold through the part hole and fix it with a tool. Align the lower mold slot with the upper mold thread end, rotate the lower mold, tighten the device, and complete the pressing.

Claims

1. A device for denting semi-enclosed areas of an aircraft, characterized in that, The upper mold (1) includes a hexagonal head (2) located at the top. The bottom center of the hexagonal head (2) is connected to the smooth rod section (4) through a tapered transition section (3). The end of the smooth rod section (4) is provided with a threaded section (5). The lower mold includes a pressure block (6). The pressure block (6) has a center hole (8) machined in its center. The top of the center hole (8) is provided with an inner tapered section (9) for cooperating with the tapered transition section (3). The pressure block (6) is detachably installed on the top of the top block (13). The center of the top block (13) is machined with a threaded hole (12) that cooperates with the threaded section (5).

2. The aircraft semi-enclosed area pressure device according to claim 1, characterized in that: The tapered transition section (3) is consistent with the shape and structure of the head of the rivet or bolt to be assembled.

3. The aircraft semi-enclosed area pressure device according to claim 1, characterized in that: The circumference of the pressure block (6) is machined with uniformly arranged first pin holes (10), and the top of the top block (13) is provided with a connecting flange (7). The connecting flange (7) is machined with a second pin hole (11) for cooperating with the first pin hole (10). The first pin hole (10) and the second pin hole (11) are connected by a pin engagement.

4. The aircraft semi-enclosed area pressure device according to claim 1, characterized in that: The lower part of the top block (13) is machined with a pin hole (14) for the pin to pass through.

5. The aircraft semi-enclosed area pressure device according to claim 1, characterized in that: The pressure block (6) comes in various sizes and models.

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