A super-large structure prefabrication system

Abstract

This invention relates to the field of precast molding equipment manufacturing technology, specifically to a large-scale precast molding system. The system includes a working platform, a precast body to be processed mounted on top of the working platform, multiple adhesive application devices, and multiple needle-punching devices. Each needle-punching device includes a second robotic arm and a mounting base. The mounting base is fixedly connected to the drive end of the second robotic arm. A depth adjustment block is located inside the mounting base at the end furthest from the second robotic arm. A needle-punching cylinder is fixedly mounted inside the depth adjustment block. A connecting seat is fixedly mounted on one side of the telescopic shaft of the needle-punching cylinder. The beneficial effect of this invention is that the two-set needle design effectively improves the efficiency of needle-punching molding of large-scale precast structures. Furthermore, the integrated design of multiple needle-punching devices and adhesive application devices enables full-angle needle-punching and adhesive application processes for large-scale precast structures, ensuring process consistency and reproducibility, thereby improving overall production efficiency.

Description

Technical Field

[0001] This invention relates to the field of preform molding equipment manufacturing technology, specifically to an ultra-large structure preform molding system. Background Technology

[0002] Composite materials used in spacecraft heat shield components are often made of high-temperature resistant materials, such as carbon / carbon composites and ceramic matrix composites, which possess excellent thermal insulation properties and load-bearing capacity to resist the heat flow generated when the spacecraft enters the atmosphere. Fiber preforms are the key reinforcing matrix of composite materials, determining the structure and overall performance of the composite material.

[0003] The spacecraft's return capsule mainly consists of a helmet, base, and sidewalls. Due to the harsh operating environment, it must meet requirements for excellent heat insulation, high temperature resistance, thermal shock resistance, and high mechanical properties. Therefore, during the manufacturing process, the main structural form of the helmet prefabricated body, base prefabricated body, and sidewall fiber skeleton prefabricated body uses two layers of carbon fiber mesh and one layer of quartz fiber mesh, or two layers of orthogonal carbon fiber non-woven fabric and one layer of quartz fiber mesh as basic structural units, which are repeatedly laid up and needle-punched. After each structural unit is needle-punched, resin spraying is performed. The uniformity of needle punching and spraying is a key factor in achieving the overall performance of the return capsule's components.

[0004] Existing needle punching equipment can already achieve needle punching forming of complex preforms through a set of needle punching devices and the angle adjustment of a robotic arm. However, the needle punching depth, density, and other requirements vary in different areas of complex preforms, and they often contain curved surfaces. To prevent the needle punching range from being too large and affecting the accuracy and uniformity of needle punching, the needle punching device is often designed to be relatively small, resulting in a limited needle punching range. This makes it more suitable for relatively small complex preforms. For large-sized complex preforms, especially ultra-large structural preforms with large curved surfaces, such as the head cover, base, and sidewalls of a spacecraft reentry capsule, performing needle punching to the same depth and effect on the same plane or curved surface can easily affect process consistency and production efficiency due to the small needle punching range. However, setting the needle punching range too large will also affect the uniformity of needle punching on curved surfaces and the accuracy and uniformity of needle punching at the junctions of different areas. In addition, when forming small complex preforms, one needle punching device and spraying device can meet the production requirements, but if such a configuration is used for large-sized complex preforms, the production efficiency is too low. Therefore, it is necessary to research and design a forming system suitable for ultra-large structural preforms to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a precast molding system for ultra-large structures to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a large-scale precast structure forming system, comprising a working platform, a precast body to be processed disposed on the top of the working platform, multiple adhesive application devices, and multiple needle-punching devices. Each needle-punching device includes a second robotic arm and a mounting base. The mounting base is fixedly connected to the drive end of the second robotic arm. A depth adjustment block is disposed inside the mounting base at the end away from the second robotic arm. A needle-punching cylinder is fixedly installed inside the depth adjustment block. A connecting seat is fixedly installed on one side of the telescopic shaft of the needle-punching cylinder. A mounting plate one and a mounting plate two are disposed on the side of the connecting seat away from the needle-punching cylinder. The side of mounting plate one near the needle-punching cylinder is fixedly connected to the connecting seat. Needles are fixedly installed on the sides of both mounting plate one and mounting plate two away from the needle-punching cylinder. A guiding mechanism is disposed on the side of the depth adjustment block near the connecting seat. An auxiliary mechanism is disposed inside the connecting seat at the end near the second mounting plate.

[0007] Preferably, the glue application device includes a robotic arm and a glue application mechanism, wherein the glue application mechanism is installed on the drive end of the robotic arm.

[0008] Multiple robotic arms 1 and multiple robotic arms 2 are arranged around the work platform, and the multiple robotic arms 1 and multiple robotic arms 2 are arranged alternately and at intervals.

[0009] Preferably, both ends of the top of the mounting base are provided with adjustment grooves, and both ends of the top of the depth adjustment block are threaded with locking rods, with the two adjustment grooves cooperating with the two locking rods respectively.

[0010] Preferably, the guiding mechanism includes four sliding pillars 2 and two sliding pillars 3. The four sliding pillars 2 are symmetrically fixed in pairs on the side of the depth adjustment block away from the mounting base. The four sliding pillars 2 on the side away from the depth adjustment block are jointly fixedly installed with a piercing plate 1. The two sliding pillars 3 are symmetrically fixedly installed on one side of the depth adjustment block. The two sliding pillars 3 on the side away from the depth adjustment block are jointly fixedly installed with a piercing plate 2. Both the piercing plate 1 and the piercing plate 2 have through holes inside. The two sets of through holes cooperate with two sets of needles respectively. The two sliding pillars 3 are fixedly installed with universal seats on the side near the connecting base. The two universal seats on the side away from the sliding pillar 3 are fixedly connected to the connecting base.

[0011] Preferably, the connecting seat has two symmetrically formed slots on the side near the depth adjustment block, and the two sliding pillars are respectively movably disposed inside the two slots at the ends near the connecting seat.

[0012] Preferably, four evenly distributed sliding columns 1 are fixedly installed on the side of the mounting base near the depth adjustment block, and the depth adjustment block is slidably sleeved on the outside of the four sliding columns 1. Two sliding columns 4 are symmetrically fixedly installed on the side of the depth adjustment block near the connecting base, and the two ends of the connecting base are distributed and slidably sleeved on the outside of the two sliding columns 4.

[0013] Preferably, the auxiliary mechanism includes a rotating component and a fixing component. The rotating component includes a rotating shaft, a motor, and two telescopic rods. The rotating shaft is rotatably mounted inside the connecting seat. The drive end of the motor is fixedly connected to the rotating shaft. The side of the mounting plate two away from the needle is fixedly mounted outside the rotating shaft. The motor is fixedly mounted outside the connecting seat. Each of the two sliding columns three has a groove at one end near the connecting seat. The rotating shaft passes through the two grooves. The two telescopic rods are symmetrically rotatably mounted on the side of the mounting plate two near the connecting seat. Each of the two telescopic rods has a limit block fixedly mounted on the side away from the mounting plate two. The connecting seat has two sliding grooves inside the end near the two telescopic rods. One side of each of the two sliding grooves is connected to a limit groove. The two limit blocks cooperate with the two limit grooves respectively.

[0014] Preferably, the fixing component includes a mounting groove, a top plate, and two sets of slots. The mounting groove is located inside the connecting seat, and a fixing rod is slidably fitted inside the mounting groove. A trapezoidal block is fixedly installed on the middle part of the fixing rod near the connecting seat. Two symmetrically distributed toothed plates are fixedly installed on the side of the fixing rod near the telescopic rod. Two springs are fixedly installed between the side of the fixing rod away from the toothed plates and the inner wall of the mounting groove. The two sets of slots are respectively located at the ends of the two telescopic rods near the fixing rod, and the two sets of slots cooperate with the two toothed plates. The top plate is fixedly installed on the side of the depth adjustment block away from the mounting seat, and the top plate cooperates with the trapezoidal block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention, through the design of two sets of needles, as well as the design of a guiding mechanism and an auxiliary mechanism to adjust the needle angle of one set of needles, effectively increases the needle area of ​​the plane or curved surface of the ultra-large prefabricated structure, realizes different needle effects at the connection of different areas, and improves the needle efficiency of the ultra-large prefabricated structure.

[0017] 2. This invention achieves full-angle needle punching and gluing processes for ultra-large precast structures by rationally configuring multiple needle punching and gluing devices around the perimeter of the ultra-large precast structure, along with the movement and rotation design of the working platform. This ensures the consistency and reproducibility of the process and greatly improves production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the acupuncture device of the present invention;

[0020] Figure 3 This is a schematic diagram of the mounting base and other structural components of the present invention.

[0021] Figure 4 This is a partial structural diagram of the acupuncture device of the present invention;

[0022] Figure 5 For the present invention Figure 4 Enlarged view of part A in the image;

[0023] Figure 6 This is a schematic diagram of the side of the connector away from the mounting base of the present invention;

[0024] Figure 7 This is a schematic diagram of the connector near the mounting base of the present invention;

[0025] Figure 8 This is a schematic diagram of the auxiliary mechanism of the present invention;

[0026] Figure 9 This is a partial schematic diagram of the fixing component and the telescopic rod of the present invention;

[0027] Figure 10 This is a schematic diagram of the internal structure of the connector of the present invention;

[0028] Figure 11 For the present invention Figure 10 A magnified view of part B in the diagram;

[0029] Figure 12 This is a schematic diagram of the telescopic rod structure of the present invention;

[0030] Figure 13 This is a schematic diagram of a partial mechanism of the fixing component of the present invention.

[0031] The components represented by each number in the attached diagram are listed below: 1. Working platform; 2. Precast body to be processed; 3. Robotic arm one; 4. Glue application mechanism; 5. Robotic arm two; 6. Mounting base; 7. Depth adjustment block; 8. Needle-piercing cylinder; 9. Adjustment groove; 10. Locking rod; 11. Slide column one; 12. Connecting seat; 13. Mounting plate one; 14. Mounting plate two; 15. Needle; 16. Slide column two; 17. Needle 18. Through plate 1; 19. Sliding column 3; 20. Piercing plate 2; 21. Through hole; 22. Rotating shaft; 23. Motor; 24. Groove; 25. Universal seat; 26. Strip groove; 27. Telescopic rod; 28. Limiting block; 29. ​​Sliding groove; 30. Limiting groove; 31. Mounting groove; 32. Fixing rod; 33. Trapezoidal block; 34. Toothed plate; 35. Spring; 36. Slot; 37. Top plate; 38. Sliding column 4. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] This invention provides a technical solution: such as Figures 1-13 The diagram illustrates the molding of a super-large precast structure, comprising a working platform 1, a precast body 2 to be processed mounted on top of the working platform 1, multiple adhesive application devices, and multiple needle-punching devices. Each needle-punching device includes a second robotic arm 5 and a mounting base 6. The mounting base 6 is fixedly connected to the drive end of the second robotic arm 5. A depth adjustment block 7 is located inside the mounting base 6 at the end furthest from the second robotic arm 5. A needle-punching cylinder 8 is fixedly mounted inside the depth adjustment block 7. A connecting seat 12 is fixedly mounted on one side of the telescopic shaft of the needle-punching cylinder 8. A mounting plate 13 and a second mounting plate 14 are located on the side of the connecting seat 12 furthest from the needle-punching cylinder 8. The side of the mounting plate 13 closest to the needle-punching cylinder 8 is fixedly connected to the connecting seat 12. Needles 15 are fixedly mounted on the sides of both the mounting plate 13 and the mounting plate 14 furthest from the needle-punching cylinder 8. A guide mechanism is located on the side of the depth adjustment block 7 closest to the connecting seat 12. An auxiliary mechanism is located inside the connecting seat 12 at the end closest to the second mounting plate 14.

[0034] The glue application device includes a robotic arm 3 and a glue application mechanism 4, with the glue application mechanism 4 mounted on the drive end of the robotic arm 3.

[0035] Multiple robotic arms 1 (3) and multiple robotic arms 2 (5) are arranged around the work platform 1, and the multiple robotic arms 1 (3) and multiple robotic arms 2 (5) are arranged alternately and at intervals.

[0036] The mounting base 6 has adjustment grooves 9 at both ends of its top, and the depth adjustment block 7 has locking rods 10 threaded onto both ends of its top. The two adjustment grooves 9 cooperate with the two locking rods 10 respectively.

[0037] The guiding mechanism includes four sliding pillars 16 and two sliding pillars 18. The four sliding pillars 16 are symmetrically fixed in pairs on the side of the depth adjustment block 7 away from the mounting base 6. The four sliding pillars 16 are fixedly mounted on the side away from the depth adjustment block 7 together with a piercing plate 17. The two sliding pillars 18 are symmetrically fixed on one side of the depth adjustment block 7. The two sliding pillars 18 are fixedly mounted on the side away from the depth adjustment block 7 together with a piercing plate 19. Both the piercing plate 17 and the piercing plate 19 have through holes 20 inside. The two sets of through holes 20 cooperate with the two sets of needles 15 respectively. The two sliding pillars 18 are fixedly mounted on the side near the connecting base 12 with universal seats 24. The two universal seats 24 are fixedly connected to the connecting base 12 on the side away from the sliding pillars 18.

[0038] Two strip grooves 25 are symmetrically opened on the side of the connecting seat 12 near the depth adjustment block 7, and two sliding pillars 18 are respectively movably set inside the two strip grooves 25 at one end near the connecting seat 12.

[0039] Four evenly distributed sliding columns 11 are fixedly installed on the side of the mounting base 6 near the depth adjustment block 7. The depth adjustment block 7 is slidably sleeved on the outside of the four sliding columns 11. Two sliding columns 37 are symmetrically fixedly installed on the side of the depth adjustment block 7 near the connecting base 12. The two ends of the connecting base 12 are distributed and slidably sleeved on the outside of the two sliding columns 37.

[0040] The auxiliary mechanism includes a rotating component and a fixed component. The rotating component includes a rotating shaft 21, a motor 22, and two telescopic rods 26. The rotating shaft 21 is rotatably mounted inside the connecting seat 12. The drive end of the motor 22 is fixedly connected to the rotating shaft 21. The side of the mounting plate 14 away from the needle 15 is fixedly mounted on the outside of the rotating shaft 21. The motor 22 is fixedly mounted on the outside of the connecting seat 12. The two sliding columns 18 have grooves 23 at their ends near the connecting seat 12. The rotating shaft 21 passes through the two grooves 23. The two telescopic rods 26 are symmetrically rotatably mounted on the side of the mounting plate 14 near the connecting seat 12. Limiting blocks 27 are fixedly mounted on the side of the two telescopic rods 26 away from the mounting plate 14. The connecting seat 12 has two sliding grooves 28 inside its interior at the end near the two telescopic rods 26. One side of each sliding groove 28 is connected to a limiting groove 29. The two limiting blocks 27 cooperate with the two limiting grooves 29 respectively.

[0041] The fixing assembly includes a mounting groove 30, a top plate 36, and two sets of slots 35. The mounting groove 30 is located inside the connecting seat 12. A fixing rod 31 is slidably fitted inside the mounting groove 30. A trapezoidal block 32 is fixedly installed in the middle of the fixing rod 31 near the connecting seat 12. Two symmetrically distributed toothed plates 33 are fixedly installed on the side of the fixing rod 31 near the telescopic rod 26. Two springs 34 are fixedly installed between the side of the fixing rod 31 away from the toothed plates 33 and the inner wall of the mounting groove 30. The two sets of slots 35 are respectively located at the ends of the two telescopic rods 26 near the fixing rod 31. The two sets of slots 35 cooperate with the two toothed plates 33. The top plate 36 is fixedly installed on the side of the depth adjustment block 7 away from the mounting seat 6. The top plate 36 cooperates with the trapezoidal block 32.

[0042] Working principle: An XYZ mobile device and a rotating device are set at the bottom of the working platform 1 for horizontal movement and rotation of the working platform 1. When in use, the preform 2 to be processed is placed on top of the working platform 1. The spatial position and angle of the preform 2 to be processed can be adjusted by the XYZ mobile device and the rotating device.

[0043] When the preform 2 is needled, the movement of one of the needled devices is as follows: The robotic arm 5 moves the mounting base 6 close to the preform 2. When needled in the planar area of ​​the preform 2, the needled cylinder 8 is directly activated. The needled cylinder 8 pushes the connecting seat 12 closer to the preform 2, thereby causing the needles 15 on one side of the mounting plate 13 and the mounting plate 24 to approach the preform 2. The two sets of needles 15 pass through their respective through holes 20 to needle the preform 2. When cylinder 8 pushes the connecting seat 12, the top plate 36 moves away from the trapezoidal block 32. The fixing rod 31, under the action of the two springs 34, slides inside the mounting groove 30 toward the two telescopic rods 26, and drives the two toothed plates 33 to insert into their respective corresponding slots 35, thus fixing the ends of the two telescopic rods 26. Since the rotating shaft 21 is fixed at this time, the two telescopic rods 26 are also fixed and will not extend or retract. Therefore, when the needle-piercing cylinder 8 pushes the connecting seat 12, the mounting plate 13 and mounting plate 2... The needles 15 on one side of mounting plate 14 can move synchronously to puncture the surface area. During movement, the connecting seat 12 slides along the two sliding pillars 37, while the mounting plate 14 slides along the two sliding pillars 18. This improves the accuracy of the needles 15 on one side of mounting plate 13 and mounting plate 14 inserting into their respective through holes 20. (It should be noted that inserting the two sets of needles 15 into their respective through holes 20 ensures that the needles 15 are perpendicular to the surface of the preform 2 to be treated and performs the puncturing action, thereby ensuring...) (Regarding the needle-punching effect on the precast body 2), the setting of two sets of needles 15 improves the needle-punching efficiency in the planar area of ​​the ultra-large precast structure. When the needle-punching cylinder 8 drives the connecting seat 12 to reset, the top plate 36 acts on the trapezoidal block 32. The trapezoidal block 32 is forced to drive the fixing rod 31 to slide away from the two telescopic rods 26 inside the mounting groove 30, and squeeze the two springs 34. The fixing rod 31 drives the two sets of toothed plates 33 to disengage from the corresponding slots 35, so that one end of the two telescopic rods 26 is no longer fixed.

[0044] When needle-punching the curved area of ​​the precast body 2, the angle of the needles 15 on one side of the mounting plate 2 14 is adjusted according to the curvature. During adjustment, the motor 22 is started, and the motor 22 drives the rotating shaft 21 to rotate, which in turn drives the mounting plate 2 14 to rotate, thereby adjusting the angle of the needles 15 on one side of the mounting plate 2 14. After adjusting to a suitable angle, the motor 22 is turned off. During the rotation of the mounting plate 2 14, the two telescopic rods 26 connected to it extend and retract accordingly. One end of the two telescopic rods 26 slides inside the two sliding grooves 28. Since the mounting plate 2 14 is sleeved on the outside of the two sliding columns 3 18, the two sliding columns 3 18 also rotate accordingly under the action of their respective universal seats 24 while the mounting plate 2 14 rotates. Then, the needle-punching cylinder 8 pushes the connecting seat 12 and the two sets of needles 15 to needle-punch the curved area. Since one end of each of the two telescopic rods 26 is fixed after the needle-punching cylinder 8 pushes the connecting seat 12 to move, the connecting seat 12 can still act on the mounting plate 14 even when the mounting plate 14 is angularly offset, so that it moves synchronously with the mounting plate 13 to perform needle-punching preparation on the curved surface area of ​​the preform 2 to be treated.

[0045] By rotating the two locking rods 10, the depth adjustment block 7 is loosened from the mounting base 6, and the depth adjustment block 7 can be slid along the four sliding pillars 11, thereby adjusting the puncture depth of the two sets of needles 15.

[0046] When puncturing the connection points of different areas of the precast body 2, the puncture depth and movement process of two sets of needles 15 are set according to the angle of the connection point. The principle of setting the movement process is consistent with the principle of the movement process of the planar area or curved area mentioned above, so it will not be repeated here.

[0047] The movement process of the other needle punching devices is the same as described above. Multiple adhesive coating devices perform spraying processes on the preform 2 to be treated. By integrating multiple needle punching and multiple spraying processes, and with the XYZ mobile device and rotating device adjusting the position and attitude of the preform 2 to be treated, it is possible to achieve needle punching and adhesive coating processes on the preform 2 to be treated from all angles. This avoids the difficulty in treating dead corner areas due to limited processing range, ensures process consistency and reproducibility, and greatly improves production efficiency.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A forming system of super-large structure preform, comprising a working platform (1), a preform (2) to be processed arranged on the top of the working platform (1), a plurality of gluing devices and a plurality of needling devices, characterized in that: The acupuncture device includes a second manipulator (5) and a mounting base (6). The mounting base (6) is fixedly connected to the drive end of the second manipulator (5). A depth adjustment block (7) is provided inside the mounting base (6) at the end away from the second manipulator (5). An acupuncture cylinder (8) is fixedly installed inside the depth adjustment block (7). A connecting seat (12) is fixedly installed on one side of the telescopic shaft of the acupuncture cylinder (8). A mounting plate (13) and a mounting plate (14) are provided on the side of the connecting seat (12) away from the acupuncture cylinder (8). The side of the mounting plate (13) close to the acupuncture cylinder (8) is fixedly connected to the connecting seat (12). A needle (15) is fixedly installed on the side of the mounting plate (13) and the side of the mounting plate (14) away from the acupuncture cylinder (8). A guide mechanism is provided on the side of the depth adjustment block (7) close to the connecting seat (12). An auxiliary mechanism is provided inside the connecting seat (12) at the end close to the mounting plate (14). The guiding mechanism includes four sliding pins 2 (16) and two sliding pins 3 (18). The four sliding pins 2 (16) are symmetrically fixed in pairs on the side of the depth adjustment block (7) away from the mounting base (6). The side of the four sliding pins 2 (16) away from the depth adjustment block (7) is jointly fixed with a piercing plate 1 (17). The two sliding pins 3 (18) are symmetrically fixed on one side of the depth adjustment block (7). The two sliding pins 3 (18) are located away from the depth adjustment block (7). A second piercing plate (19) is fixedly installed on one side of the segment (7). Both the first piercing plate (17) and the second piercing plate (19) have through holes (20) inside. The two sets of through holes (20) cooperate with the two sets of needles (15) respectively. The two sliding columns (18) are fixedly installed with universal seats (24) on the side near the connecting seat (12). The two universal seats (24) are fixedly connected to the connecting seat (12) on the side away from the sliding column (18). Four evenly distributed sliding columns (11) are fixedly installed on the side of the mounting base (6) near the depth adjustment block (7). The depth adjustment block (7) is slidably sleeved on the outside of the four sliding columns (11). Two sliding columns (37) are symmetrically fixedly installed on the side of the depth adjustment block (7) near the connecting base (12). The two ends of the connecting base (12) are distributed and slidably sleeved on the outside of the two sliding columns (37). The auxiliary mechanism includes a rotating component and a fixing component. The rotating component includes a rotating shaft (21), a motor (22), and two telescopic rods (26). The rotating shaft (21) is rotatably mounted inside the connecting seat (12). The driving end of the motor (22) is fixedly connected to the rotating shaft (21). The side of the mounting plate two (14) away from the needle (15) is fixedly mounted on the outside of the rotating shaft (21). The motor (22) is fixedly mounted on the outside of the connecting seat (12). The two sliding columns three (18) have grooves at their ends near the connecting seat (12). (23), the rotating shaft (21) passes through two grooves (23), the two telescopic rods (26) are symmetrically rotated and installed on the side of the mounting plate (14) near the connecting seat (12), and the two telescopic rods (26) are fixedly installed on the side away from the mounting plate (14) with limit blocks (27). The connecting seat (12) has two sliding grooves (28) inside the end near the two telescopic rods (26), and one side of each of the two sliding grooves (28) is connected to a limit groove (29). The two limit blocks (27) cooperate with the two limit grooves (29) respectively. The fixing assembly includes a mounting groove (30), a top plate (36), and two sets of slots (35). The mounting groove (30) is located inside the connecting seat (12). A fixing rod (31) is slidably fitted inside the mounting groove (30). A trapezoidal block (32) is fixedly installed in the middle of the fixing rod (31) near the connecting seat (12). Two symmetrically distributed toothed plates (33) are fixedly installed on the side of the fixing rod (31) near the telescopic rod (26). Two springs (34) are fixedly installed between the side of the rod (31) away from the toothed plate (33) and the inner wall of the mounting groove (30). Two sets of slots (35) are respectively opened at the ends of the two telescopic rods (26) near the fixed rod (31). The two sets of slots (35) cooperate with the two toothed plates (33). The top plate (36) is fixedly installed on the side of the depth adjustment block (7) away from the mounting seat (6). The top plate (36) cooperates with the trapezoidal block (32).

2. The forming system for a superstructure preform according to claim 1, wherein: The glue application device includes a robotic arm (3) and a glue application mechanism (4), wherein the glue application mechanism (4) is installed on the drive end of the robotic arm (3); Multiple robotic arms (3) and multiple robotic arms (5) are arranged around the work platform (1), and the multiple robotic arms (3) and multiple robotic arms (5) are arranged alternately.

3. The ultra-large structure prefabrication system according to claim 1, characterized in that: The mounting base (6) has adjustment grooves (9) at both ends of its top, and the depth adjustment block (7) has locking rods (10) threaded onto both ends of its top. The two adjustment grooves (9) cooperate with the two locking rods (10) respectively.

4. The system for forming a preform of a superstructure according to claim 1, wherein: The connecting seat (12) has two symmetrical slots (25) on the side near the depth adjustment block (7), and the two sliding columns (18) are respectively movably disposed inside the two slots (25) at one end near the connecting seat (12).

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