Large-span mixed net rack mounting and positioning device and method

Abstract

The invention relates to the technical field of mixed net rack installation and positioning, in particular to a large-span mixed net rack installation and positioning device and method.The large-span mixed net rack installation and positioning device comprises a bottom rack, and an alignment and positioning mechanism is installed on the bottom rack and comprises two alignment racks symmetrically arranged in the width direction of the bottom rack; guide frames are symmetrically installed on the alignment frame in the length direction of the alignment frame. According to the butt joint device, the multi-degree-of-freedom adjustment alignment frame is matched with the guide frame, accurate guiding and positioning are provided for the insertion rod and the extension rod, the insertion rod and the extension rod can be guided to be smoothly clamped into the coaxial alignment groove to complete butt joint, meanwhile, the posture and the position of a large-span rod frame can be actively corrected, the problems of butt joint dislocation and untight attachment caused by deformation and stress deviation are effectively avoided, and the butt joint precision is improved. The butt joint failure is completely eradicated from the source, and the butt joint precision and stability of the rod frame are guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of installation and positioning of hybrid space frames, and in particular to an installation and positioning device and method for large-span hybrid space frames. Background Technology

[0002] Hybrid space frame is a unique building structure that combines the advantages of steel space frame and concrete structure, providing higher strength and stability for buildings. This structure is commonly used in large public buildings, stadiums and long-span buildings.

[0003] The installation and positioning technology of hybrid space frames mainly refers to how to accurately and efficiently determine the correct position and orientation of parts during the installation process. For example, patent application CN218117284U discloses an auxiliary positioning device for the installation of steel structure space frames, belonging to the field of steel structure engineering technology. It includes a space frame base and a positioning mechanism. The space frame base is equipped with a positioning plate, and the top of the positioning plate has an arc-shaped groove and a positioning groove. Through the cooperation of the space frame base, positioning plate, arc-shaped groove, positioning groove, space frame bolt ball, positioning column, positioning ring, fixing bolt, first ring, second ring and traction rope, the members can be assisted in positioning and support, reducing the labor intensity of installers, realizing the rapid and stable installation of members, improving the installation accuracy and efficiency of space frames, and is highly practical and easy to promote and use.

[0004] Using the aforementioned existing technology, poles can be installed to obtain a pole frame, and the assembled pole frame can be further assembled to obtain a space frame. In the process of assembling the space frame, prefabrication and assembly followed by transportation to the construction site or assembly on the construction site can be adopted.

[0005] Among them, large-span space frames usually adopt the above-mentioned prefabrication and assembly process to align and assemble large-span frames and weld them as a whole. However, in the actual construction and assembly process, the following problems still exist: due to the large span and relatively limited rigidity of the large-span frames, they are very prone to bending, sagging and other structural deformations due to their own weight or external forces during hoisting, transportation and alignment assembly.

[0006] The existing conventional assembly methods do not take corresponding control and correction measures for such deformation, making it difficult to ensure accurate alignment of the poles during assembly and docking. This easily leads to problems such as assembly deviation and uneven docking gaps, which not only seriously affects the overall forming accuracy and structural quality of large-span space frames, but also causes difficulties in pole alignment and repeated adjustments due to deformation, significantly reducing the efficiency of pole assembly and alignment and affecting the overall construction progress. Summary of the Invention

[0007] To address the aforementioned technical problems, this application provides an installation and positioning device and method for large-span hybrid space frames, employing the following technical solution: Part One: A large-span hybrid space frame installation and positioning device includes a bottom frame, on which an alignment and positioning mechanism is installed. The alignment and positioning mechanism includes two alignment frames symmetrically arranged along the width direction of the bottom frame. Guide frames are symmetrically installed on the alignment frames along their own length direction. A circular alignment groove is opened on the top of the alignment frame. The alignment grooves of the fitting insert rod and the connecting rod on the same alignment frame are coaxial, and the diameter of the alignment groove of the fitting insert rod is smaller than the diameter of the alignment groove of the fitting connecting rod.

[0008] The guide frame is a semi-circular hollow structure with a gradually decreasing diameter towards the alignment frame. It is used to guide the insertion rod and the connecting rod and to correct the posture of the rod frame. A bidirectional electric actuator is installed on the side of the bottom frame. The telescopic end of the bidirectional electric actuator is equipped with a movable frame with a locking groove. The locking groove is used to lock the rod frame and drive it to move towards each other.

[0009] Preferably, the alignment and positioning mechanism further includes a drive assembly, which includes a bidirectional drive cylinder mounted on the bottom frame. The bottom frame has movable blocks that are symmetrically slidably arranged along the width direction and correspond one-to-one with the alignment frame. The movable blocks are connected to the telescopic ends of the bidirectional drive cylinder. An elastic telescopic rod is mounted on the movable block, and the alignment frame is mounted on the elastic telescopic rod.

[0010] Preferably, a U-shaped frame with an opening facing downwards is installed on the bottom frame, a bidirectional drive cylinder is inserted between the two vertical sections of the U-shaped frame, a lifting cylinder is installed at the top of the horizontal section of the U-shaped frame, a lifting plate is installed at the telescopic end of the lifting cylinder, telescopic plates are installed at both ends of the lifting plate, and the end of the telescopic plate away from the lifting plate is connected to the telescopic end of the elastic telescopic rod.

[0011] Preferably, the telescopic plate is used to make way when the alignment frame moves horizontally, so as to avoid horizontal collision between the alignment frame and the lifting plate.

[0012] Preferably, the alignment frame has a semi-cylindrical structure, and the alignment groove extends along the length of the bottom frame to allow the insertion rod and the connecting rod to slide within the alignment groove and complete the docking.

[0013] Preferably, an electric push rod is installed on the bottom frame, and a lower pressure plate is installed on the telescopic end of the electric push rod. The lower pressure plate is used to apply a downward force to the rod frame and limit the vertical displacement of the rod frame.

[0014] Preferably, limit rods are symmetrically arranged on the upper surface of the bottom frame along the width direction. The limit rods are used to rigidly limit and support the pole frame after docking, and to counteract the deformation force of the pole frame.

[0015] Preferably, the bidirectional drive cylinder is mounted on the bottom frame via a cylinder seat to drive the moving block to move horizontally, thereby achieving horizontal adjustment of the alignment frame.

[0016] Preferably, the guide frame and the alignment frame are fixedly connected, and the inner diameter of the hollow structure of the guide frame is adapted to the outer diameter of the corresponding insertion rod and connecting rod, so as to guide the insertion rod and connecting rod to slide accurately into the alignment groove.

[0017] Part Two: An installation and positioning method using a large-span hybrid space frame installation and positioning device includes the following steps: 1. Snap two rod frames to be connected into the snap-fit ​​slots of the moving frame, and start the bidirectional drive cylinder to drive the alignment frame to adjust the horizontal distance to match the distribution spacing of the insertion rod and the connecting rod.

[0018] 2. Start the lifting cylinder to drive the alignment frame to rise and fall vertically, and complete the precise positioning of the alignment frame with multiple degrees of freedom.

[0019] 3. Start the bidirectional electric push rod to move the rod frame towards each other, guide the insertion rod and connecting rod to slide into the alignment groove, and the electric push rod drives the lower pressure plate to limit the rod frame.

[0020] 4. The pole frame continues to move to complete the butt welding of the insert pole and the connecting pole, and the formed pole frame is moved between the limiting rods for rigid limiting to prevent deformation. In summary, this application includes at least one of the following beneficial technical effects: 1. This invention relies on the alignment frame and guide frame with multi-degree-of-freedom adjustment to provide precise guidance and positioning for the insertion and connection of poles. It can guide the two to smoothly snap into the coaxial alignment groove to complete the docking. At the same time, it can actively correct the posture and position of large-span poles, effectively avoiding docking misalignment and poor fit caused by deformation and force offset, eliminating docking failure from the root and ensuring the accuracy and stability of pole docking.

[0021] 2. This invention achieves multi-dimensional flexible adjustment of the alignment frame through multiple sets of drive components. It can precisely adjust the distance and raise and lower according to the distribution of the rods. In conjunction with the moving frame with the snap-fit ​​groove, it synchronously pushes the rods to connect in opposite directions. The connection of the reference group of rods is completed first, and then the remaining rods are connected in a coordinated manner. It can also vertically limit the rods through the lower pressure plate to prevent the rods from moving upward during the connection, thus ensuring the orderliness and accuracy of the connection process.

[0022] 3. The limiting rod set in this invention can form a rigid limit and support for the completed pole frame. By constraining the pole frame, it can effectively offset the deformation force caused by its own weight and stress rebound, fundamentally avoiding the problem of secondary deformation after the connection of large span pole frames, continuously stabilizing the structural accuracy and forming shape of the pole frame, and ensuring the smooth progress of subsequent welding and other processes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional installation structure between the present invention and the frame.

[0024] Figure 2 This is the present invention. Figure 1 A partial three-dimensional structural diagram.

[0025] Figure 3 This is a three-dimensional structural schematic diagram of the present invention.

[0026] Figure 4 This is the present invention. Figure 3 A partial three-dimensional structural diagram.

[0027] Figure 5 This is the present invention. Figure 4 A magnified view of part A.

[0028] Figure 6 This is a three-dimensional installation structure diagram of the C-shaped frame, lifting cylinder, and bidirectional drive cylinder of the present invention.

[0029] Figure 7 This is a schematic diagram of the three-dimensional installation structure between the movable block, the elastic telescopic rod, and the alignment frame of the present invention.

[0030] Figure 8 This is a schematic diagram of the three-dimensional structure of the alignment frame of the present invention.

[0031] Explanation of reference numerals in the attached drawings: 1. Bottom frame; 2. Alignment and positioning mechanism; 3. Alignment frame; 4. Guide frame; 31. Alignment slot; 100. Rod frame; 101. Insert rod; 102. Connecting rod; 11. Bidirectional electric push rod; 12. Moving frame; 21. Drive assembly; 22. Bidirectional drive cylinder; 23. Moving block; 24. Elastic telescopic rod; 13. C-shaped frame; 14. Lifting cylinder; 15. Lifting plate; 16. Telescopic plate; 17. Electric push rod; 18. Lower pressure plate; 19. Limit rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1 to 8 This application will be described in further detail.

[0033] This application discloses an installation and positioning device and method for a large-span hybrid space frame. The frame is an arc-shaped structure, and insert rods and connecting rods are uniformly welded to the opposite surfaces of the spliced ​​frames along their circumference. The frame with the connecting rods and the frame with the insert rods need to be spliced ​​together and then welded.

[0034] Reference Figure 1 as well as Figure 2 A large-span hybrid space frame installation and positioning device includes a bottom frame 1, on which an alignment and positioning mechanism 2 is installed. The alignment and positioning mechanism 2 includes two alignment frames 3 that can move with multiple degrees of freedom. The alignment frames 3 are symmetrically arranged along the width direction of the bottom frame 1, and guide frames 4 are symmetrically arranged along the length direction of the alignment frames 3. The guide frames 4 are installed on the corresponding alignment frames 3.

[0035] The alignment frame 3 is a semi-cylindrical structure. The top of the alignment frame 3 is provided with an alignment groove 31 that is circular and used to align with the insertion rod 101 and the connecting rod 102. The alignment groove 31 corresponding to the insertion rod 101 and the alignment groove 31 corresponding to the connecting rod 102 on the same alignment frame 3 are coaxial.

[0036] The diameter of the alignment groove 31 corresponding to the insertion rod 101 is smaller than the diameter of the alignment groove 31 corresponding to the connecting rod 102. The connecting rod 102 is provided with a connecting circular groove that matches the insertion rod 101, and the diameter of the connecting circular groove is smaller than the diameter of the insertion rod 101, so that the insertion rod 101 can be inserted into the connecting rod 102. The guide frame 4 is a semi-circular hollow structure, and its diameter gradually decreases towards the alignment frame 3. In specific operation, the two rod frames 100 are moved to both sides of the alignment positioning mechanism 2. After adjustment, the alignment frame 3 is moved to the designated position, so that the insertion rod 101 and the connecting rod 102 move to the vicinity of the guide frame 4. At this time, the alignment frame 3 is moved to the designated position, so that the insertion rod 101 and the connecting rod 102 are located near the guide frame 4. Then the rod frame 100 is moved again, so that the insertion rod 101 and the connecting rod 102 move.

[0037] During the movement of the insertion rod 101 and the connecting rod 102, they come into contact with the alignment frame 3. At this time, the hollow semi-circular structure of the alignment frame 3 can guide the insertion rod 101 and the connecting rod 102, thereby allowing the insertion rod 101 and the connecting rod 102 to slide inside the hollow semi-circular structure of the alignment frame 3, and finally move to the corresponding alignment groove 31. At this time, the rod frame 100 continues to move, allowing the insertion rod 101 and the connecting rod 102 to move inside the corresponding alignment groove 31 and finally complete the docking.

[0038] With the precise guidance and positioning of the guide frame 4, the precise docking of the insertion rod 101 and the connecting rod 102 can be successfully completed. At the same time, in the docking scenario of large-span pole frame 100, the guide frame 4 can actively correct the attitude and adjust the position of the pole frame 100 during the docking process of the insertion rod 101 and the connecting rod 102, effectively avoiding docking misalignment and poor fit caused by structural deformation and force offset of the large-span pole frame 100, eliminating the possibility of docking failure caused by the deformation of the pole frame 100 from the root, and ensuring the accuracy and stability of the pole frame 100 docking.

[0039] A bidirectional electric actuator 11 is installed on the side of the bottom frame 1. A movable frame 12 for pushing the rod frame 100 is installed on the telescopic end of the bidirectional electric actuator 11 via a connecting protrusion. The movable frame 12 is provided with a snap-fit ​​groove for placing the rod frame 100.

[0040] The alignment positioning mechanism 2 also includes a drive assembly 21 for driving the alignment frame 3 to move, including a bidirectional drive cylinder 22, wherein the bidirectional drive cylinder 22 is mounted on the bottom frame 1 through a cylinder seat, and the bottom frame 1 is symmetrically slidably arranged with moving blocks 23 corresponding to the alignment frame 3 along its width direction, and the moving blocks 23 are mounted on the telescopic ends corresponding to the bidirectional drive cylinder 22. An elastic telescopic rod 24 is mounted on the moving block 23, and the alignment frame 3 is mounted on the corresponding elastic telescopic rod 24, and the alignment groove 31 extends along the length direction of the bottom frame 1.

[0041] In specific operations, when it is necessary to position and install the pole frame 100, the two pole frames 100 to be installed are respectively placed on both sides of the bidirectional drive cylinder 22, and the two ends of the pole frame 100 are respectively engaged with the corresponding moving frame 12 to ensure that the pole frame 100 will not tilt. Then, according to the distribution distance of the insertion rod 101 and the connecting rod 102 on the pole frame 100, the bidirectional drive cylinder 22 is activated. During the movement of the extension section of the bidirectional drive cylinder 22, the moving block 23 is moved. During the movement of the moving block 23, the alignment frame 3 is moved to the designated position through the elastic telescopic rod 24, so that the horizontal distance of the alignment frame 3 can be adjusted.

[0042] The bottom frame 1 is also provided with a downward-facing U-shaped frame 13, and the vertical section of the U-shaped frame 13 is installed on the bottom frame 1. The bidirectional drive cylinder 22 passes between the two vertical sections of the U-shaped frame 13. The top of the horizontal section of the U-shaped frame 13 is equipped with a lifting cylinder 14 through a cylinder seat. The top of the telescopic end of the lifting cylinder 14 is equipped with a horizontally placed lifting plate 15, and telescopic plates 16 are provided at both ends of the lifting plate 15. The end of the telescopic plate 16 away from the lifting plate 15 is connected to the telescopic end of the elastic telescopic rod 24.

[0043] Restart the lifting cylinder 14. During the movement of the extension end of the lifting cylinder 14, the lifting plate 15 moves synchronously. During the movement of the lifting plate 15, the extension end of the elastic telescopic rod 24 moves through the telescopic plate 16, which in turn can drive the alignment frame 3 to move in the vertical direction. The telescopic plate 16 can make way for the alignment frame 3 during the horizontal movement to avoid the alignment frame 3 from colliding with the lifting plate 15 in the horizontal direction.

[0044] When the alignment frame 3 moves to the designated position, the bidirectional electric push rod 11 is activated. During the movement of the telescopic end of the bidirectional electric push rod 11, the moving frame 12 moves synchronously. At this time, due to the locking groove limiting the moving frame 12, the rod frame 100 moves towards each other, so that the insertion rod 101 and the connecting rod 102 on the rod frame 100 move synchronously to connect.

[0045] After the two sets of insertion rods 101 corresponding to the alignment frame 3 are connected to the connecting rod 102, the remaining insertion rods 101 are connected to the corresponding connecting rods 102 simultaneously. After the connection, the insertion rods 101 and the corresponding connecting rods 102 are welded together.

[0046] An electric push rod 17 is also installed on the bottom frame 1, and a pressure plate 18 for limiting the rod frame 100 is installed on the telescopic end of the electric push rod 17.

[0047] During the docking process of the insertion rod 101 and the connecting rod 102, in order to prevent the insertion rod 101 and the connecting rod 102 from moving the rod frame 100 upward synchronously when guided by the guide frame 4, the electric push rod 17 drives the lower pressure plate 18 to apply a downward external force to the rod frame 100, thereby limiting the rod frame 100 and preventing the rod frame 100 from displacing in the vertical direction.

[0048] Limiting rods 19 are symmetrically arranged on the upper surface of the bottom frame 1 along its width direction.

[0049] After the assembly is completed, the entire frame 100 is smoothly moved between the sets of limiting rods 19. The limiting rods 19 can provide stable limiting clamping and support protection for the formed frame 100. Through rigid constraints, the deformation force caused by the weight of the large-span frame 100 and stress rebound is effectively offset. This fundamentally avoids the hidden danger of secondary deformation due to the large span after the assembly of the frame 100, and continuously ensures the structural accuracy of the frame 100.

[0050] An installation and positioning method using a large-span hybrid space frame installation and positioning device includes the following steps: 1. Before the device is in operation, the two rods 102 frames 100 to be connected are placed on both sides of the bidirectional drive cylinder 22, so that the two ends of the rod frame 100 are engaged in the engagement groove of the moving frame 12 to achieve anti-tipping fixation; then, according to the distribution distance between the insertion rod 101 and the connecting rod 102 on the rod frame 100, the bidirectional drive cylinder 22 is started to drive the moving block 23 to move horizontally, and the moving block 23 drives the alignment frame 3 to complete the horizontal distance adjustment through the elastic telescopic rod 24, so as to prepare the position for subsequent precise docking.

[0051] 2. After the horizontal adjustment is completed, the lifting cylinder 14 on the C-shaped frame 13 is activated. Its telescopic end drives the lifting plate 15 to move vertically. The lifting plate 15 pulls the elastic telescopic rod 24 through the telescopic plates 16 at both ends, thereby driving the alignment frame 3 to complete the vertical height adjustment. The telescopic plate 16 can automatically make way when the alignment frame 3 moves horizontally, avoiding horizontal collision between the alignment frame 3 and the lifting plate 15, realizing the flexible adjustment and precise positioning of the alignment frame 3 with multiple degrees of freedom.

[0052] 3. After the alignment frame 3 is positioned, the bidirectional electric push rod 11 is activated to drive the moving frame 12 to move towards each other. The moving frame 12 pulls the two sets of rod frames 100 closer to each other through the snap-fit ​​groove, so that the insertion rod 101 and the connecting rod 102 are moved to the vicinity of the guide frame 4. The guide frame 4 guides the insertion rod 101 and the connecting rod 102 with a semi-circular hollow structure, guiding them to slide smoothly into the coaxial alignment groove 31. At the same time, the electric push rod 17 drives the lower pressure plate 18 to press the rod frame 100 downward to prevent the rod frame 100 from moving vertically upward with the rod guide during docking, thus ensuring accurate alignment.

[0053] 4. The rod frame 100 moves continuously towards each other, so that the insert rod 101 and the connecting rod 102 can be precisely connected in the alignment groove 31. First, the benchmark connection of the two sets of rods corresponding to the alignment frame 3 is realized, and then the remaining insert rods 101 and connecting rods 102 are connected in a synchronous manner to complete the joint. After the connection, the rods can be welded. After the welding is completed, the whole rod frame 100 is moved between the limiting rods 19. The limiting rods 19 form a rigid limit and support for the formed rod frame 100, which counteracts the deformation caused by gravity and stress rebound, avoids the problem of secondary deformation, and maintains the structural accuracy of the rod frame 100.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A large-span hybrid space frame installation and positioning device, characterized in that: Includes a bottom frame (1), on which an alignment and positioning mechanism (2) is installed. The alignment and positioning mechanism (2) includes two alignment frames (3) symmetrically arranged along the width direction of the bottom frame (1). The alignment frames (3) are symmetrically equipped with guide frames (4) along their own length direction. The top of the alignment frame (3) is provided with a circular alignment groove (31). The alignment grooves (31) of the adapter rod (101) and the connecting rod (102) on the same alignment frame (3) are coaxial, and the diameter of the alignment groove (31) of the adapter rod (101) is smaller than the diameter of the alignment groove (31) of the adapter connecting rod (102). The guide frame (4) is a semi-circular hollow structure with a gradually decreasing diameter towards the alignment frame (3). It is used to guide the insertion rod (101) and the connecting rod (102) and to correct the posture of the rod frame (100). A bidirectional electric push rod (11) is installed on the side of the bottom frame (1). A movable frame (12) with a snap-fit ​​groove is installed at the telescopic end of the bidirectional electric push rod (11). The snap-fit ​​groove is used to snap the rod frame (100) and drive it to move towards each other.

2. The installation and positioning device for a large-span hybrid space frame according to claim 1, characterized in that: The alignment and positioning mechanism (2) further includes a drive assembly (21), which includes a bidirectional drive cylinder (22) mounted on the bottom frame (1). The bottom frame (1) has symmetrically sliding moving blocks (23) that correspond one-to-one with the alignment frame (3). The moving blocks (23) are connected to the telescopic end of the bidirectional drive cylinder (22). An elastic telescopic rod (24) is mounted on the moving blocks (23), and the alignment frame (3) is mounted on the elastic telescopic rod (24).

3. The installation and positioning device for a large-span hybrid space frame according to claim 2, characterized in that: A U-shaped frame (13) with an opening facing downwards is installed on the bottom frame (1). The bidirectional drive cylinder (22) passes between the two vertical sections of the U-shaped frame (13). A lifting cylinder (14) is installed at the top of the horizontal section of the U-shaped frame (13). A lifting plate (15) is installed at the telescopic end of the lifting cylinder (14). Telescopic plates (16) are installed at both ends of the lifting plate (15). The end of the telescopic plate (16) away from the lifting plate (15) is connected to the telescopic end of the elastic telescopic rod (24).

4. The installation and positioning device for a large-span hybrid space frame according to claim 3, characterized in that: The telescopic plate (16) is used to make way when the alignment frame (3) moves horizontally, so as to avoid horizontal collision between the alignment frame (3) and the lifting plate (15).

5. The installation and positioning device for a large-span hybrid space frame according to claim 1, characterized in that: The alignment frame (3) is a semi-cylindrical structure, and the alignment groove (31) extends along the length of the bottom frame (1) to allow the insertion rod (101) and the connecting rod (102) to slide in the alignment groove (31) and complete the docking.

6. The installation and positioning device for a large-span hybrid space frame according to claim 1, characterized in that: An electric push rod (17) is installed on the bottom frame (1). A lower pressure plate (18) is installed on the telescopic end of the electric push rod (17). The lower pressure plate (18) is used to apply a downward force to the rod frame (100) and limit the vertical displacement of the rod frame (100).

7. The installation and positioning device for a large-span hybrid space frame according to claim 1, characterized in that: The bottom frame (1) is symmetrically provided with limiting rods (19) along the width direction on the upper end surface. The limiting rods (19) are used to rigidly limit and support the rod frame (100) after docking, and to counteract the deformation force of the rod frame (100).

8. The installation and positioning device for a large-span hybrid space frame according to claim 2, characterized in that: The bidirectional drive cylinder (22) is mounted on the bottom frame (1) via a cylinder seat and is used to drive the moving block (23) to move horizontally, thereby achieving horizontal adjustment of the alignment frame (3).

9. The installation and positioning device for a large-span hybrid space frame according to claim 1, characterized in that: The guide frame (4) is fixedly connected to the alignment frame (3). The inner diameter of the hollow structure of the guide frame (4) is adapted to the outer diameter of the corresponding insertion rod (101) and connecting rod (102) to guide the insertion rod (101) and connecting rod (102) to slide accurately into the alignment groove (31).

10. An installation and positioning method using the installation and positioning device for a large-span hybrid space frame as described in any one of claims 1-9, characterized in that:

1. Snap the two rod frames (100) to be connected into the snap-fit ​​slot of the moving frame (12), start the bidirectional drive cylinder (22) to drive the alignment frame (3) to adjust the horizontal distance to match the distribution distance of the insertion rod (101) and the connecting rod (102); 2. Start the lifting cylinder (14) to drive the alignment frame (3) to rise and fall vertically, and complete the multi-degree-of-freedom precise positioning of the alignment frame (3); 3. Start the bidirectional electric push rod (11) to drive the rod frame (100) to move towards each other. The guide frame (4) guides the insertion rod (101) and the connecting rod (102) to slide into the alignment groove (31). The electric push rod (17) drives the lower pressure plate (18) to limit the rod frame (100).

4. The rod frame (100) continues to move to complete the butt welding of the insertion rod (101) and the connecting rod (102), and the formed rod frame (100) is moved between the limiting rods (19) for rigid limiting to prevent deformation.

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