A stringer preforming device

Abstract

The utility model discloses a long string preforming device relates to aircraft parts manufacturing technical field. The long string preforming device is used to heat pressure forming to long string. Among them, long string includes the linear segment and the bending segment that are connected with each other and set up in the preset angle. The long string preforming device includes 2 mounting stand, linear segment forming assembly is used to heat pressure forming to linear segment, and it includes linear segment forming die, the bending segment forming assembly is detachably arranged at the end of linear segment forming assembly, is used to heat pressure forming to bending segment, and it includes bending segment forming die, linear segment forming assembly and bending segment forming assembly are installed between 2 mounting stand, the extension direction of linear segment forming die and the extension direction of bending segment forming die are set up in the included angle, and the angle of the included angle between both equals the preset angle. The long string preforming device is used to adapt to the heat pressure forming of different types of long string, and reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of aircraft component manufacturing technology, and in particular to a stringer preforming device. Background Technology

[0002] Composite materials have become the primary structural material for next-generation aircraft fuselages. Composite stringers are the main supporting structure of composite fuselages, characterized by their large number and complex configuration. Previously, stringer manufacturing involved manual lamination and autoclave curing, which was inefficient, difficult to control fiber angles, and resulted in poor part quality stability. For stringer manufacturing, automated manufacturing is necessary to meet the demands of mass production and large-scale applications. Therefore, customized and automated equipment is now commonly used for stringer fabrication.

[0003] However, existing stringer hot pressing preforming equipment is set up as a platform with an equal upper and lower straight structure. According to the configuration of the stringer, the corresponding preforming mold is installed on the platform. It can only produce one type of stringer with equal straight structure or stringers with bent sections, which has low adaptability. Especially when manufacturing stringers with bent sections, it is necessary to make a preforming mold separately according to the overall shape change of the stringer, which is costly.

[0004] Therefore, there is an urgent need for a long stringer preforming device to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a stringer preforming device that can adapt to the hot pressing of different types of stringers and reduce production costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a stringer preforming device for hot-pressing a stringer. The stringer includes interconnected straight segments and bent segments. The extension directions of the straight segments and the bending segments form an angle, and the angle between them is a preset angle. The stringer preforming device includes: two mounting columns spaced apart along a first direction, which is horizontal; a straight segment forming assembly for hot-pressing the straight segments; the straight segment forming assembly includes a straight segment forming mold; a bent segment forming assembly detachably disposed at the end of the straight segment forming assembly; the bent segment forming assembly is detachably connected to the straight segment forming assembly; the bent segment forming assembly is used for hot-pressing the bent segments; the bent segment forming assembly includes a bent segment forming mold; the straight segment forming assembly and the bent segment forming assembly are installed between the two mounting columns; the extension directions of the straight segment forming mold and the bending segment forming mold form an angle, and the angle between them is equal to the preset angle.

[0008] In some embodiments, the straight segment forming assembly further includes: a top crossbeam of the straight segment; a bottom crossbeam of the straight segment, spaced apart from the top crossbeam of the straight segment in a second direction; the straight segment forming mold is disposed between the top crossbeam and the bottom crossbeam of the straight segment; the second direction is a vertical direction; the straight segment forming mold includes: an upper mold of the straight segment, movably mounted on the top crossbeam of the straight segment; the extension direction of the upper mold of the straight segment is parallel to the first direction; a lower mold of the straight segment, mounted on the bottom crossbeam of the straight segment, and parallel to the upper mold of the straight segment; the straight segment forming assembly further includes a first lifting assembly, mounted on the top crossbeam of the straight segment, and drivenly connected to the upper mold of the straight segment to drive the upper mold of the straight segment to move in the second direction.

[0009] In some embodiments, the straight segment forming assembly further includes a mounting beam disposed on the lower side of the top crossbeam of the straight segment; the first lifting assembly is tractively connected to the mounting beam; and the upper mold of the straight segment is mounted on the side of the mounting beam opposite to the top crossbeam of the straight segment.

[0010] In some embodiments, the first lifting assembly includes: a first driving member; a crossbeam mounted on the top of the straight section; a drive shaft, one end of which is connected to the first driving member; a screw jack, mounted on the crossbeam of the straight section and connected to the other end of the drive shaft; a mold on the straight section and connected to the screw jack; the first driving member is capable of driving the drive shaft to rotate, thereby causing the output end of the screw jack to move up and down in the second direction.

[0011] In some embodiments, the straight segment forming assembly further includes: a support assembly mounted on the top crossbeam of the straight segment;

[0012] The support assembly includes: a second drive member, mounted on the top crossbeam of the straight segment; a connector, connected to the output end of the second drive member; and a support rod, one end of which is connected to the connector, and the other end of which can abut against the bottom crossbeam of the straight segment. The second drive member can drive the support rod to move in the second direction, so that the support rod moves toward or away from the bottom crossbeam of the straight segment.

[0013] In some embodiments, the bent section forming assembly includes: a top crossbeam of the bent section; a bottom crossbeam of the bent section, spaced apart from the top crossbeam of the bent section in a second direction; a bent section forming mold disposed between the top crossbeam and the bottom crossbeam of the bent section; the second direction is a vertical direction; the bent section forming mold includes: an upper mold of the bent section, movably mounted on the top crossbeam of the bent section; the extension direction of the upper mold of the bent section is angled with the first direction; and a lower mold of the bent section, movably mounted on the bottom crossbeam of the bent section, and arranged parallel to the upper mold of the bent section.

[0014] In some embodiments, the bending segment forming assembly further includes: a plurality of second lifting components installed on the top crossbeam of the bending segment; the second lifting components are drivenly connected to the upper mold of the bending segment, and the plurality of second lifting components cooperate to change the angle between the upper mold of the bending segment and the first direction; a plurality of third lifting components installed on the bottom crossbeam of the bending segment; the third lifting components are drivenly connected to the lower mold of the bending segment, and the plurality of third lifting components cooperate to keep the lower mold of the bending segment parallel to the upper mold of the bending segment.

[0015] In some embodiments, the upper mold of the bending segment includes a plurality of first bending segment sub-molds; the plurality of first bending segment sub-molds are respectively configured in one-to-one correspondence with a plurality of second lifting components; the lower mold of the bending segment includes a plurality of second bending segment molds; the plurality of second bending segment molds are respectively configured in one-to-one correspondence with a plurality of third lifting components.

[0016] In some embodiments, the second lifting assembly includes: a third drive member, mounted on the top crossbeam of the bent section;

[0017] The first mounting bracket is rotatably connected to the output end of the third driving member; the third driving member is capable of driving the first mounting bracket to move in the second direction; the mold on the bending section is mounted on the side of the first mounting bracket opposite to the third driving member.

[0018] In some embodiments, the third lifting assembly includes: a fourth driving member mounted on the bottom crossbeam of the bending section; a second mounting bracket rotatably connected to the output end of the fourth driving member; the fourth driving member being capable of driving the second mounting bracket to move in the second direction; and the lower mold of the bending section mounted on the side of the second mounting bracket opposite to the fourth driving member.

[0019] The beneficial effects of this utility model are:

[0020] This invention provides a stringer preforming device. It involves assembling a straight segment forming component and a bent segment forming component between two mounting columns, with the bent segment forming component detachably attached to the end of the straight segment forming component. The extension direction of the straight segment forming mold in the straight segment forming component is angled to the extension direction of the bent segment forming mold in the bent segment forming component, and this angle is set as a preset angle. This allows for the arrangement and combination of different numbers of straight segment forming components and bent segment forming components to form a stringer preforming device suitable for the stringer to be formed, adapting to different types of stringers and significantly improving the applicability of the device. Furthermore, since the straight segment forming component and the bent segment forming component are detachably connected, they can be disassembled and rearranged when dealing with different types of stringers, eliminating the need for redesigning and manufacturing molds and reducing production costs. Attached Figure Description

[0021] Figure 1 This is a structural diagram of a stringer preforming device provided in a specific embodiment of this utility model;

[0022] Figure 2 This is a structural diagram of a first lifting assembly provided in a specific embodiment of the present utility model;

[0023] Figure 3 This is a structural diagram of a support component provided in a specific embodiment of this utility model;

[0024] Figure 4 This is a partial structural diagram of a second lifting component and a mold on the bending section provided in a specific embodiment of this utility model;

[0025] Figure 5 This is a partial structural diagram of a third lifting component and a lower mold for a bending section provided in a specific embodiment of this utility model.

[0026] In the picture:

[0027] 1. Mounting column; 2. Straight section forming assembly; 21. Straight section forming mold; 211. Upper mold of straight section; 212. Lower mold of straight section; 22. Top crossbeam of straight section; 23. Bottom crossbeam of straight section; 24. First lifting assembly; 241. First driving component; 242. Drive shaft; 243. Screw jack; 25. Mounting beam; 26. Support assembly; 261. Second driving component; 262. Connecting component; 263. Support rod; 3. Bending section forming assembly; 31. Bending section forming mold; 311. Upper mold of bending section; 312. Lower mold of bending section; 32. Second lifting assembly; 321. Third driving component; 322. First mounting frame; 33. Third lifting assembly; 331. Fourth driving component; 332. Second mounting frame;

[0028] X1, first direction; X2, second direction. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] like Figure 1 As shown, this embodiment provides a stringer preforming device for hot-pressing a stringer. The stringer includes interconnected straight segments and bent segments. The extension direction of the straight segments forms an angle with the extension direction of the bent segments, and the angle between them is a preset angle. The stringer preforming device includes: a mounting column 1, a straight segment forming assembly 2, and a bent segment forming assembly 3.

[0034] The number of mounting posts 1 is two, and the two mounting posts 1 are spaced apart along a first direction X1, where the first direction X1 is horizontal. The mounting posts 1 can be, for example, cylindrical or prismatic structures, or frame structures formed by multiple mounting plates and mounting rods. The two mounting posts 1 are used to provide mounting positions.

[0035] The aforementioned straight segment forming assembly 2 is used for hot pressing straight segments of a stringer. The straight segment forming assembly 2 includes a straight segment forming mold 21.

[0036] The aforementioned bent section forming assembly 3 is detachably disposed at the end of the aforementioned straight section forming assembly 2 (here, the bent section forming assembly 3 and the straight section forming assembly 2 are detachably connected, for example, by bolts). It is easy to understand that when there is only one bent section forming assembly 3, it can be selectively disposed at one end of the straight section forming assembly 2; when there are multiple bent section forming assemblies 3, multiple bent section forming assemblies 3 can be disposed at both ends of the straight section forming assembly 2; of course, when there are multiple bent section forming assemblies 3, multiple bent section forming assemblies 3 can also be disposed at the same end of the straight section forming assembly 2. This bent section forming assembly 3 is used for hot-press forming of the bent section of the stringer. This bent section forming assembly 3 includes a bent section forming mold 31.

[0037] Furthermore, it is easy to understand that, within the same stringer preforming device, the number of straight section forming assemblies 2, the number of bent section forming assemblies 3, and the placement of the bent section forming assemblies 3 can all be flexibly configured according to actual usage requirements. For example, as... Figure 1As shown, the stringer preforming device includes one straight segment forming assembly 2 and one bent segment forming assembly 3, wherein the bent segment forming assembly 3 is located at the end of the straight segment forming assembly 2; or, the stringer preforming device includes two straight segment forming assemblies 2 and two bent segment forming assemblies 3, wherein the two straight segment forming assemblies 2 are connected in sequence, one bent segment forming assembly 3 is located at the end of one of the straight segment forming assemblies 2, and the other bent segment forming assembly 3 is located at the other end of the other straight segment forming assembly 2. In other words, the arrangement sequence of the above forming assemblies is: bent segment forming assembly 3, straight segment forming assembly 2, straight segment forming assembly 2, bent segment forming assembly 3. The number of straight segment forming assemblies 2, the number of bent segment forming assemblies 3, and the location of the bent segment forming assemblies 3 can be flexibly set by those skilled in the art according to actual usage requirements (i.e., the actual structural shape of the stringer to be formed), and will not be exhaustively listed here.

[0038] The straight segment forming assembly 2 and the bent segment forming assembly 3 are installed between two mounting columns 1. The extension direction of the straight segment forming mold 21 and the extension direction of the bent segment forming mold 31 are set at an angle, and the angle between them is equal to the aforementioned preset angle.

[0039] Therefore, the stringer preforming device provided in this embodiment, by setting a straight segment forming assembly 2 and a bent segment forming assembly 3 between two mounting columns 1, and detachably setting the bent segment forming assembly 3 at the end of the straight segment forming assembly 2, and setting the extension direction of the straight segment forming mold 21 in the straight segment forming assembly 2 and the extension direction of the bent segment forming mold 31 in the bent segment forming assembly 3 at an angle, and setting the angle of this angle as a preset angle, allows for the arrangement and combination of different numbers of straight segment forming assemblies 2 and different numbers of bent segment forming assemblies 3 according to requirements when hot pressing stringers of different structural shapes are required, forming a stringer preforming device adapted to the stringer to be formed, so as to adapt to the hot pressing of different types of stringers, greatly improving the applicability of the above-mentioned stringer preforming device. In addition, since the straight section forming assembly 2 and the bent section forming assembly 3 are detachably connected, when dealing with different types of stringers, the straight section forming assembly 2 and the bent section forming assembly 3 can be disassembled and rearranged without the need for redesigning and manufacturing molds, thus reducing production costs.

[0040] In some embodiments, such as Figure 1As shown, the aforementioned straight segment forming assembly 2 further includes: a top crossbeam 22, a bottom crossbeam 23, and a first lifting component 24. The top crossbeam 22 and the bottom crossbeam 23 can be prismatic structures or a frame structure formed by combining multiple rods. The bottom crossbeam 23 is spaced apart from the top crossbeam 22 in the second direction X2. The straight segment forming mold 21 is disposed between the top crossbeam 22 and the bottom crossbeam 23, where the second direction X2 is the vertical direction.

[0041] The aforementioned straight segment forming mold 21 includes an upper straight segment mold 211 and a lower straight segment mold 212. The upper straight segment mold 211 is movably mounted on the top crossbeam 22 of the straight segment. The extension direction of the upper straight segment mold 211 is parallel to the aforementioned first direction X1. The lower straight segment mold 212 is mounted on the bottom crossbeam 23 of the straight segment and is parallel to the upper straight segment mold 211. It is readily understood that the straight segment of the stringer to be formed should be positioned between the upper straight segment mold 211 and the lower straight segment mold 212.

[0042] The aforementioned first lifting component 24 is installed on the top crossbeam 22 of the straight section and is connected to the upper mold 211 of the straight section in a transmission manner, so as to drive the upper mold 211 of the straight section to move in the second direction X2. With the above configuration, the straight section forming mold 21 can be installed, and the upper mold 211 of the straight section can be moved in the second direction X2, which facilitates the hot pressing forming of the stringer.

[0043] In some embodiments, such as Figure 1 As shown, the aforementioned straight segment forming assembly 2 also includes a mounting beam 25. This mounting beam 25 is located below the top crossbeam 22 of the straight segment. The mounting beam 25 can be a block structure or a plate structure, etc. The aforementioned first lifting assembly 24 is drive-connected to the mounting beam 25. The upper mold 211 of the straight segment is mounted on the side of the mounting beam 25 away from the top crossbeam 22 of the straight segment, that is, on the lower side of the mounting beam 25. With this arrangement, the upper mold 211 of the straight segment can be mounted on the mounting beam 25, and drive-connected to the first lifting assembly 24 via the mounting beam 25. When it is necessary to replace or maintain the upper mold 211 of the straight segment, only the connection between the upper mold 211 of the straight segment and the mounting beam 25 needs to be disassembled; there is no need to disassemble the connection between the first lifting assembly 24 and the mounting beam 25, thus avoiding affecting the transmission effect of the first lifting assembly 24 after disassembling the connection between the first lifting assembly 24 and the mounting beam 25.

[0044] In some embodiments, combined with Figure 1 , Figure 2 As shown, the first lifting assembly 24 includes: a first driving component 241, a transmission shaft 242, and a screw jack 243.

[0045] The first driving component 241 is mounted on the top crossbeam 22 of the straight section. This first driving component 241 is, for example, a rotary motor. One end of the aforementioned transmission shaft 242 is connected to the first driving component 241, and the two are connected via, for example, a transmission gear set or a reduction gear set. The aforementioned screw jack 243 is mounted on the top crossbeam 22 of the straight section and is connected to the other end of the transmission shaft 242. The aforementioned mold 211 on the straight section is connected to the screw jack 243. The aforementioned first driving component 241 can drive the transmission shaft 242 to rotate, thereby causing the output end of the screw jack 243 to move up and down in the second direction X2. Specifically, the aforementioned screw jack 243 includes a worm, a worm wheel that meshes with the worm, and a screw whose external thread meshes with the internal thread of the worm wheel. The transmission shaft 242 is connected to the worm, and the mold 211 on the straight section is connected to the end of the screw. When the drive shaft 242 drives the worm gear to rotate, which in turn drives the worm wheel to rotate, the worm gear and the lead screw form a "lead screw and nut pair," converting its own rotational motion into the linear motion of the lead screw. This enables the lifting and lowering action of the output end of the screw jack 243. For a more detailed structure of the screw jack 243, those skilled in the art can refer to relevant technologies for configuration, which will not be described in detail here. With the above configuration, the mold 211 on the straight segment can move in the second direction X2. The structure is simple and easy to install and use.

[0046] In some embodiments, combined with Figure 1 , Figure 3 As shown, the aforementioned straight segment forming assembly 2 also includes a support component 26, which is mounted on the top crossbeam 22 of the straight segment. The support component 26 includes a second drive member 261, a connector 262, and a support rod 263. The second drive member 261 is mounted on the top crossbeam 22 of the straight segment. The second drive member 261 is, for example, an electric push rod or a drive cylinder. The connector 262 is connected to the output end of the second drive member 261, and is, for example, a connecting plate. One end of the support rod 263 is connected to the connector 262, and the other end abuts against the bottom crossbeam 23 of the straight segment. The second drive member 261 can drive the support rod 263 to move in a second direction X2, causing the support rod 263 to move towards or away from the bottom crossbeam 23 of the straight segment. For example, using... Figure 1Taking the perspective shown as an example, when a long stringer loading operation is required, the second driving component 261 can be used to drive the support rod 263 to move upward, so that the top crossbeam 22 and the bottom crossbeam 23 of the straight section have a large loading space, which facilitates the loading of the long stringer; after the long stringer loading is completed, the second driving component 261 can be used to drive the support rod 263 to move downward, so that the end of the support rod 263 abuts against the bottom crossbeam 23 of the straight section, thus the support rod 263 can be used to support the top crossbeam 22 of the straight section.

[0047] With the above configuration, the support component 26 can support the top beam 22 of the straight section, preventing bending and deformation due to the excessive length of the top beam 22 of the straight section.

[0048] In some embodiments, the bent section forming assembly 3 includes a top crossbeam and a bottom crossbeam. Both the top and bottom crossbeams can be prismatic structures or frame structures formed by combining multiple rods. The bottom crossbeam is spaced apart from the top crossbeam in a second direction X2. The bent section forming mold 31 is disposed between the top and bottom crossbeams, where the second direction X2 is a vertical direction.

[0049] like Figure 1 As shown, the bending segment forming mold 31 includes an upper bending segment mold 311 and a lower bending segment mold 312. The upper bending segment mold 311 is movably mounted on the top crossbeam of the bending segment. The extending direction of the upper bending segment mold 311 forms an angle with the first direction X1. The lower bending segment mold 312 is movably mounted on the bottom crossbeam of the bending segment and is arranged parallel to the upper bending segment mold 311.

[0050] Instance-wise, such as Figure 1 As shown, the aforementioned bending section forming assembly 3 further includes: multiple second lifting components 32 and multiple third lifting components 33. Specifically, the multiple second lifting components 32 are installed on the top crossbeam of the bending section. The second lifting components 32 are connected to the upper mold 311 of the bending section via a transmission connection. The multiple second lifting components 32 cooperate to change the included angle between the upper mold 311 of the bending section and the first direction X1. For example, by providing two second lifting components 32, the tilt degree of the upper mold 311 of the bending section can be changed by changing the lifting degree of the two second lifting components 32 (or the length of the output shaft extension). With this arrangement, the bending section forming mold 31 can be adapted to bending sections of different types of stringers, further reducing the design and manufacturing cost of the mold.

[0051] Furthermore, the upper bending section mold 311 includes multiple first bending section sub-molds, each corresponding to one of the multiple second lifting components 32. The lower bending section mold 312 includes multiple second bending section sub-molds, each corresponding to one of the multiple third lifting components 33. This arrangement allows the second lifting components 32 and the third lifting components 33 to perform more precise angle or posture adjustments on the upper bending section mold 311 and the lower bending section mold 312, further improving the adaptability of the bending section forming mold 31 to different types of bent sections.

[0052] In some embodiments, combined with Figure 1 , Figure 4 As shown, the second lifting assembly 32 includes a third driving member 321 and a first mounting bracket 322. The third driving member 321 is mounted on the top crossbeam of the bent section, and is, for example, an electric push rod or a driving cylinder. The first mounting bracket 322 is rotatably connected to the output end of the third driving member 321, for example, via a rotating shaft, which facilitates adjustment of the tilt of the first mounting bracket 322. The third driving member 321 can drive the first mounting bracket 322 to move in the second direction X2. The upper mold 311 of the bent section is mounted on the side of the first mounting bracket 322 opposite to the third driving member 321 (i.e., mounted on the lower side of the first mounting bracket 322).

[0053] Similarly, combining Figure 1 , Figure 5 As shown, the third lifting assembly 33 includes a fourth driving member 331 and a second mounting bracket 332. The fourth driving member 331 is mounted on the bottom crossbeam of the bent section, and is, for example, an electric push rod or a driving cylinder. The second mounting bracket 332 is rotatably connected to the output end of the fourth driving member 331, for example, via a rotating shaft, which facilitates adjustment of the tilt of the second mounting bracket 332. The fourth driving member 331 can drive the second mounting bracket 332 to move in the second direction X2.

[0054] With the above settings, the second lifting component 32 and the third lifting component 33 can move in the second direction X2. In turn, the tilt of the bending section forming mold 31 (i.e., the angle between it and the first direction X1) can be adjusted by the cooperation of multiple second lifting components 32 and third lifting components 33. The structure is simple and easy to use.

[0055] Furthermore, it is easy to understand that heating plates are provided in both the straight section forming mold 21 and the bent section forming mold 31 to achieve hot pressing of the stringer. For example, heating plates are provided on the side of the upper mold 211 of the straight section away from the bottom crossbeam 23, the side of the lower mold 212 of the straight section away from the top crossbeam 22, the side of the upper mold 311 of the bent section away from the bottom crossbeam, and the side of the lower mold 312 of the bent section away from the top crossbeam. These heating plates are, for example, resistance heating plates that generate heat through metal resistance wires or PTC constant-temperature heating plates using positive temperature coefficient ceramic elements.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stringer preforming device for hot-pressing a stringer, the stringer comprising interconnected straight segments and bent segments, wherein the extension direction of the straight segments forms an angle with the extension direction of the bent segments, the angle being a preset angle; characterized in that, The stringer preforming device includes: Two mounting columns (1) are spaced apart along a first direction (X1); the first direction (X1) is horizontal. A straight segment forming assembly (2) is used to hot press the straight segment; the straight segment forming assembly (2) includes a straight segment forming mold (21); A bent section forming assembly (3) is detachably disposed at the end of the straight section forming assembly (2); the bent section forming assembly (3) is used for hot pressing the bent section; the bent section forming assembly (3) includes a bent section forming mold (31). The straight segment forming assembly (2) and the bent segment forming assembly (3) are installed between two mounting columns (1); the extension direction of the straight segment forming mold (21) and the extension direction of the bent segment forming mold (31) are set at an angle, and the angle between them is equal to the preset angle.

2. The stringer preforming device according to claim 1, characterized in that, The straight segment forming assembly (2) also includes: The top crossbeam of the straight segment (22); The bottom crossbeam (23) of the straight segment is spaced apart from the top crossbeam (22) of the straight segment in the second direction (X2); the forming mold (21) of the straight segment is disposed between the top crossbeam (22) and the bottom crossbeam (23) of the straight segment; the second direction (X2) is the vertical direction; The straight segment forming mold (21) includes: A mold (211) on the straight segment is movably mounted on the top crossbeam (22) of the straight segment; the extension direction of the mold (211) on the straight segment is parallel to the first direction (X1); The lower mold (212) of the straight segment is installed on the bottom crossbeam (23) of the straight segment and is set parallel to the upper mold (211) of the straight segment; The straight segment forming assembly (2) also includes a first lifting component (24), which is installed on the top crossbeam (22) of the straight segment and is connected to the upper mold (211) of the straight segment to drive the upper mold (211) of the straight segment to move in the second direction (X2).

3. The stringer preforming device according to claim 2, characterized in that, The straight segment forming assembly (2) also includes a mounting beam (25) disposed on the lower side of the top crossbeam (22) of the straight segment; The first lifting assembly (24) is connected to the mounting beam (25) in a transmission manner; the mold (211) on the straight segment is installed on the side of the mounting beam (25) away from the top crossbeam (22) of the straight segment.

4. The stringer preforming device according to claim 2, characterized in that, The first lifting assembly (24) includes: First drive component (241); mounted on the top crossbeam (22) of the straight segment; One end of the drive shaft (242) is connected to the first drive member (241) in a transmission connection; A screw jack (243) is installed on the top crossbeam (22) of the straight section and is connected to the other end of the drive shaft (242); the mold (211) on the straight section is connected to the screw jack (243); The first driving member (241) can drive the transmission shaft (242) to rotate, thereby causing the output end of the screw jack (243) to move up and down in the second direction (X2).

5. The stringer preforming device according to claim 2, characterized in that, The straight segment forming assembly (2) also includes: Support component (26) is installed on the top crossbeam (22) of the straight segment; The support component (26) includes: The second drive unit (261) is installed on the top crossbeam (22) of the straight segment; The connector (262) is connected to the output end of the second drive unit (261); The support rod (263) is connected at one end to the connector (262) and at the other end to abut against the bottom crossbeam (23) of the straight section; The second drive member (261) is capable of driving the support rod (263) to move in the second direction (X2) so that the support rod (263) moves toward or away from the bottom crossbeam (23) of the straight segment.

6. The stringer preforming apparatus according to any one of claims 1 to 5, characterized in that, The bent section forming assembly (3) includes: The top crossbeam of the bent section; The bottom crossbeam of the bent section is spaced apart from the top crossbeam of the bent section in the second direction (X2); the forming mold (31) of the bent section is disposed between the top crossbeam of the bent section and the bottom crossbeam of the bent section; the second direction (X2) is the vertical direction; The bending segment forming mold (31) includes: The upper mold (311) of the bending section is movably mounted on the top crossbeam of the bending section; the extension direction of the upper mold (311) of the bending section is set at an angle to the first direction (X1); The lower mold (312) of the bending section is movably installed on the bottom crossbeam of the bending section and is arranged parallel to the upper mold (311) of the bending section.

7. The stringer preforming device according to claim 6, characterized in that, The bent section forming assembly (3) also includes: Multiple second lifting components (32) are installed on the top crossbeam of the bending section; the second lifting components (32) are connected to the upper mold (311) of the bending section in a transmission connection; the multiple second lifting components (32) cooperate to change the included angle between the upper mold (311) of the bending section and the first direction (X1); Multiple third lifting components (33) are installed on the bottom crossbeam of the bending section; the third lifting components (33) are connected to the lower mold (312) of the bending section in a transmission connection, and the multiple third lifting components (33) cooperate to keep the lower mold (312) of the bending section parallel to the upper mold (311) of the bending section.

8. The stringer preforming device according to claim 7, characterized in that, The upper mold (311) of the bending section includes a plurality of first bending section sub-molds; the plurality of first bending section sub-molds are respectively set one-to-one with the plurality of second lifting components (32); The bending section lower mold (312) includes multiple second bending section sub-molds; the multiple second bending section molds are respectively set in one-to-one correspondence with the multiple third lifting components (33).

9. The stringer preforming device according to claim 7, characterized in that, The second lifting assembly (32) includes: The third drive component (321) is installed on the top crossbeam of the bent section; The first mounting bracket (322) is rotatably connected to the output end of the third driving member (321); the third driving member (321) is capable of driving the first mounting bracket (322) to move in the second direction (X2); The upper mold (311) of the bending section is installed on the side of the first mounting bracket (322) away from the third drive member (321).

10. The stringer preforming device according to claim 7, characterized in that, The third lifting assembly (33) includes: The fourth drive component (331) is installed on the bottom crossbeam of the bent section; The second mounting bracket (332) is rotatably connected to the output end of the fourth driving member (331); the fourth driving member (331) is capable of driving the second mounting bracket (332) to move in the second direction (X2); The bending section lower mold (312) is installed on the side of the second mounting bracket (332) away from the fourth drive member (331).

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