A steel structure lattice shell welding positioning device

Abstract

The invention relates to a steel structure lattice shell welding positioning device applied to the field of steel structure welding, comprising a positioning piece for clamping and positioning a warp arc segment and a weft arc segment, the positioning piece comprising a supporting base plate whose top surface is covered with a friction pad, an adjusting frame is fixedly installed on the top of one side of the supporting base plate, a dual-axis driving motor is installed on the movable end of the adjusting frame through a bracket, a detection plate is connected to the first output shaft of the dual-axis driving motor, a winding disk is connected to the second output shaft of the dual-axis driving motor, a pull rope is wound around the surface of the winding disk, a side constraint plate is installed on the tail end of the detection plate through an axis, a No. 1 micro hydraulic telescopic rod is installed above the detection plate, a pressure block is connected to the power end of the No. 1 micro hydraulic telescopic rod, and an elastic bundle is connected to the inside of the empty slot. When welding the steel structure lattice shell, the clamped arc segment to be welded is automatically horizontally corrected and clamped, thereby reducing the subsequent steps of aligning one by one and achieving convenient and efficient positioning.

Description

Technical Field

[0001] The invention relates to a steel structure welding positioning device, in particular to a steel structure lattice shell welding positioning device applied to the steel structure welding field. Background Art

[0002] Steel structure lattice shell is a space structure made of steel materials. Its shape is diverse, including round, oval or square, which can be selected according to design requirements. This structure is not only light and high-strength, but also can effectively disperse the load, making the structure more reasonable, and it occupies an important position in modern construction projects.

[0003] The Chinese utility model patent specification with application number CN202321323787.6 discloses a steel structure lattice shell processing positioning auxiliary device. When positioning the hub node, the positioning tube is first positioned on the tooling frame plate of the tooling frame and welded to achieve the inclined plane spatial positioning, and then the hub node is placed on the inclined surface and welded to achieve the hub node spatial position and slope positioning and fixing. All hub nodes are positioned and fixed in the above manner, and then the lattice shell rectangular tube is installed, and the positioning tube is cut and polished clean, and the steel structure lattice shell processing of a processing unit is completed. Simple, efficient and precise.

[0004] In the prior art, when welding a lattice shell, it is usually necessary to perform splicing welding of multi-section arc-shaped steel structures to form a stable lattice shell shape, and the above-mentioned positioning device utilizes the configuration of convex points and auxiliary scale lines to assist in the fixation of nodes. When performing actual lattice shell welding operations, the angles between the welded parts are more complex and need to be aligned to ensure welding accuracy. The operation is relatively cumbersome, which is not conducive to improving the welding efficiency of the steel structure lattice shell and ensuring the welding accuracy. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to perform convenient and efficient welding positioning processing when welding the lattice shell.

[0006] In order to solve the above problems, the present invention provides a steel structure lattice shell welding positioning device, including a positioning member for clamping and positioning the warp arc segment and the weft arc segment, the positioning member includes a supporting base plate with a friction pad covered on the top surface, an adjusting frame is fixedly installed on the top of one side of the supporting base plate, a dual-axis drive motor is installed on the movable end of the adjusting frame through a bracket, a first output shaft of the dual-axis drive motor is connected to a detection plate, a second output shaft of the dual-axis drive motor is connected to a winding disk, a pull rope is wound around the surface of the winding disk, a side constraint plate is installed on the tail end of the detection plate through a shaft, and one end of the pull rope is connected to the side constraint plate. The lower surface of the side constraint plate is connected, the top of the detection plate is connected with an arch-shaped elastic arch, and the tail end of the elastic arch is connected to the upper surface of the side constraint plate, a No. 1 micro-hydraulic telescopic rod is installed above the detection plate, the power end of the No. 1 micro-hydraulic telescopic rod is connected with a pressure block, and the interior of the detection plate is provided with a hollow groove with a cross-sectional size larger than the pressure block, the interior of the hollow groove is connected with an elastic bundle, and the elastic bundle is located on the outside of the power end of the No. 1 micro-hydraulic telescopic rod, a depression is provided on the top of the friction pad, and a micro camera is embedded in the depression, and the height value of the micro camera is less than the depth value of the depression.

[0007] In the above-mentioned steel structure lattice shell welding positioning device, by utilizing the cooperation of the side restraint plate, the pressure block and the No. 1 micro hydraulic telescopic rod, the arc segment to be welded can be automatically corrected and clamped horizontally when welding the steel structure lattice shell, thereby reducing the subsequent alignment steps one by one and achieving convenient and efficient positioning.

[0008] As a further improvement of the present application, the initial elastic force of the elastic arch is not less than the gravity of the side constraint plate, and the projection of the side constraint plate in the vertical direction is located outside the supporting bottom plate when the side constraint plate is in a perpendicular state to the detection plate.

[0009] As a further improvement of the present application, the positioning member also includes a load-bearing frame, the surface of the load-bearing frame is provided with an annular groove, and the inside of the annular groove is slidably connected with a telescopic movable member, the surface of the load-bearing frame is fixedly mounted with a telescopic fixed member, and the telescopic movable member and the telescopic fixed member are arranged at the same height, the moving ends of the telescopic movable member and the telescopic fixed member are both detachably connected to the surface of the supporting base plate on one side away from the adjusting frame, the telescopic movable member and the telescopic fixed member are both structures with adjustable lengths, a servo motor is arranged on one side of the load-bearing frame, and the servo motor is connected to the surface of the load-bearing frame through gears.

[0010] As a further improvement of the present application, a follower groove is provided on the surface of the dual-axis drive motor, an electric telescopic bracket is slidably connected inside the follower groove, and the power end of the electric telescopic bracket is movably connected to the surface of the No. 1 micro hydraulic telescopic rod.

[0011] As a further improvement of the present application, a No. 2 micro hydraulic telescopic rod is installed on the back of the supporting base plate, and the power end of the No. 2 micro hydraulic telescopic rod is fixedly connected to a sliding block slidably connected to a groove arranged at the bottom of the detection plate, and the cross-sectional size of the sliding block is smaller than the cross-sectional size of the detection plate, the bottom surface of the sliding block protrudes from the bottom surface of the detection plate, and the two end points of the sliding block displacement are both located on the side of the pressure block away from the dual-axis drive motor.

[0012] As a further improvement of the present application, a detection system is also included, which includes a processor installed on a load-bearing frame, and the processor is connected to an input module, a measuring module, a correction module and a constraint positioning module, wherein the input module is used to input the diameter values ​​of the warp arc segment and the latitudinal arc segment, the measuring module includes a pressure sensing plate installed in the friction pad, which is used to measure the placement status of the warp arc segment and the latitudinal arc segment on the surface of the supporting base plate, the correction module is connected to the No. 1 micro hydraulic telescopic rod, the No. 2 micro hydraulic telescopic rod and the electric telescopic bracket signal, which is used to correct the placement status of the warp arc segment and the latitudinal arc segment, and the constraint positioning module is connected to the second output shaft signal of the dual-axis drive motor, which is used to switch the working state of the side constraint plate.

[0013] As another improvement of the present application, the connection between the power end of the No. 2 micro hydraulic telescopic rod and the sliding block is replaced by a rotating connection. The power end of the No. 2 micro hydraulic telescopic rod is connected to a servo motor, and the output end of the servo motor is connected to the surface of the sliding block through a shaft.

[0014] As another improved supplement of the present application, the sliding block is located on the side of the detection plate close to the side constraint plate in the initial state, and the servo motor is electrically connected to the second micro hydraulic telescopic rod.

[0015] In summary, when performing welding positioning processing of steel structure lattice shell structure, it is necessary to first clamp the arc segment horizontally, and then use the servo motor, telescopic fixed parts and telescopic movable parts to splice the circular rings, reducing the steps of aligning and positioning one by one. After the circular ring welding is completed, the longitudinal connection between the circular rings is required. At this time, the warp arc segment after horizontal clamping can be used to adjust the angle of the warp arc segment using the multi-axis robotic arm that can be raised and lowered + translated on the movable trolley, so as to perform circular positioning welding processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an installation diagram of the telescopic movable member, the telescopic fixed member, the load-bearing frame, the servo motor and the supporting base plate of the first embodiment of the present application;

[0017] Figure 2 This is an installation diagram of the supporting base plate, the detection plate and the side restraint plate of the first embodiment of the present application;

[0018] Figure 3 This is a composition diagram of the lattice shell structure of the first embodiment of the present application;

[0019] Figure 4 This is an installation diagram of the elastic bundle member of the first embodiment of the present application;

[0020] Figure 5 This is a diagram showing the restraint state of the side restraint plate of the first embodiment of the present application;

[0021] Figure 6 This is a state diagram of the latitudinal arc segment of the first embodiment of the present application being corrected in inclination on the surface of the supporting base plate;

[0022] Figure 7 This is a diagram of a second miniature hydraulic telescopic rod and a sliding block according to the first embodiment of the present application;

[0023] Figure 8 This is a diagram showing a sliding block moving to adjust the inclination of the latitudinal arc segment in the first embodiment of the present application;

[0024] Fig. 9 This is a process diagram of the first embodiment of the present application, in which the warp arc segment is horizontally clamped, the angle is adjusted, and then the welding connection between the upper and lower rings of different diameters is waited;

[0025] Fig.10 This is an installation diagram of a servo motor and a sliding block according to a second embodiment of the present application;

[0026] Fig.11 This is a schematic diagram of the change of the placement state of the sliding block in the second embodiment of the present application;

[0027] Fig.12 This is a schematic diagram of the change in height difference between the surface of the latitudinal arc segment with different curvature radii and the bottom of the detection plate in the second embodiment of the present application;

[0028] Fig.13 This is a schematic diagram of splicing welding according to the first embodiment of the present application.

[0029] Description of the numbers in the figure:

[0030] 1. Supporting base plate; 2. Adjusting frame; 3. Dual-axis driving motor; 31. Follow-up groove; 4. Detection plate; 41. Elastic bundle; 5. Side restraining plate; 6. Pull rope; 7. Elastic arch; 8. No. 1 micro hydraulic telescopic rod; 9. Pressing block; 10. Telescopic moving part; 11. Telescopic fixed part; 12. Servo motor; 13. Load-bearing frame; 14. No. 2 micro hydraulic telescopic rod; 15. Sliding block; 16. Servo motor; 001. Warp arc segment; 002. Weft arc segment. DETAILED DESCRIPTION

[0031] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0032] The first implementation method:

[0033] Figure 1-4 A steel structure lattice shell welding positioning device is shown, including a positioning member for clamping and positioning a warp arc segment 001 and a weft arc segment 002, the positioning member including a supporting base plate 1 with a friction pad covered on the top surface, an adjusting frame 2 is fixedly installed on the top of one side of the supporting base plate 1, a dual-axis drive motor 3 is installed on the movable end of the adjusting frame 2 through a bracket, a first output shaft of the dual-axis drive motor 3 is connected to a detection plate 4, a second output shaft of the dual-axis drive motor 3 is connected to a winding disk, a pull rope 6 is wound around the surface of the winding disk, a side constraint plate 5 is installed on the tail end of the detection plate 4 through a shaft, and one end of the pull rope 6 is connected to the side constraint plate 5 The top of the detection plate 4 is connected with an arch-shaped elastic arch member 7, and the tail end of the elastic arch member 7 is connected to the upper surface of the side constraint plate 5. A No. 1 micro-hydraulic telescopic rod 8 is installed above the detection plate 4, and the power end of the No. 1 micro-hydraulic telescopic rod 8 is connected with a pressure block 9, and the inside of the detection plate 4 is provided with an empty groove with a cross-sectional size larger than the pressure block 9, and the inside of the empty groove is connected with an elastic bundle member 41, and the elastic bundle member 41 is located on the outside of the power end of the No. 1 micro-hydraulic telescopic rod 8. A depression is provided on the top of the friction pad, and a miniature camera is embedded and installed inside the depression, and the height value of the miniature camera is less than the depth value of the depression;

[0034] A follower groove 31 is provided on the surface of the dual-axis driving motor 3, and an electric telescopic bracket is slidably connected inside the follower groove 31, and the power end of the electric telescopic bracket is movably connected to the surface of the first micro hydraulic telescopic rod 8;

[0035] Figure 7 It is shown that a No. 2 micro hydraulic telescopic rod 14 is installed on the back of the supporting base plate 1, and the power end of the No. 2 micro hydraulic telescopic rod 14 is fixedly connected to a sliding block 15 slidably connected to a groove set at the bottom of the detection plate 4, and the cross-sectional size of the sliding block 15 is smaller than the cross-sectional size of the detection plate 4, the bottom surface of the sliding block 15 protrudes from the bottom surface of the detection plate 4, and the two end points of the displacement of the sliding block 15 are both located on the side of the pressure block 9 away from the dual-axis drive motor 3.

[0036] Specifically, in the steel structure lattice shell (such as Figure 3 As shown in the figure, before welding, the setting position of the pressing block 9 is located at the time when the latitudinal arc segment 002 is placed horizontally. First, a plurality of horizontally placed latitudinal arc segments 002 are subjected to splicing welding. After welding, a circular ring structure can be formed. Then, a plurality of longitudinal arc segments 001 are welded to the adjacent circular ring surfaces. The operations are performed sequentially, and the welding of the lattice shell can be completed in this way.

[0037] When performing the splicing welding process of the latitudinal arc segment 002, it is necessary to first place the corresponding size cut latitudinal arc segment 002 on the supporting base plate 1. Since the latitudinal arc segment 002 has a certain curvature and the projection length of the latitudinal arc segment 002 is greater than the supporting base plate 1, the latitudinal arc segment 002 will deflect to a certain extent in the natural state. In order to facilitate the subsequent circular docking, it is necessary to ensure that the latitudinal arc segment 002 placed on the supporting base plate 1 is placed in a horizontal state.

[0038] Figure 6 As shown, after the latitudinal arc segment 002 is placed on the surface of the supporting base plate 1, the first output shaft of the dual-axis drive motor 3 is started to drive the detection plate 4 and the side constraint plate 5 to rotate to the top of the latitudinal arc segment 002 (the height of the adjustment frame 2 is usually set to be larger than the diameter of the latitudinal arc segment 002, so that the detection plate 4 can be smoothly moved to the top of the latitudinal arc segment 002 when the latitudinal arc segment 002 is placed in a non-horizontal state), and then the second output shaft of the dual-axis drive motor 3 is started to drive the pull rope 6 to reel in a short distance, so that the side constraint plate 5 plays a side constraint role on the latitudinal arc segment 002 (such as Figure 5 As shown), the measurement module is then used to detect whether the placement state of the latitudinal arc segment 002 on the supporting base plate 1 is horizontal. In the horizontal placement state, if the pressure mark on the pressure sensing plate (i.e., the pressure sensor array) runs through the surface of the supporting base plate 1 from beginning to end, and the curvature radius of the pressure mark is within the set error range compared with the radius of the latitudinal arc segment 002 (because the curvature radius is the same as the radius of the latitudinal arc segment 002 is an ideal state, a small range of error is allowed in actual operation, and does not affect the subsequent horizontal alignment of the two latitudinal arc segments 002. Welding), if it is within the set error range, it can be judged as a horizontal placement state, otherwise it is a non-horizontal placement state;

[0039] When it is not placed horizontally, it is necessary to first determine the inclination state of the latitudinal arc segment 002 on the surface of the supporting base plate 1 (use a micro camera to detect the inclination state of the lower latitudinal arc segment 002). If the upper part of the latitudinal arc segment 002 is inclined close to the direction of the dual-axis drive motor 3 (it can be judged based on whether the distance value between the top projection of the latitudinal arc segment 002 photographed by the micro camera and the direction of the adjustment frame 2 exceeds the set threshold value; if it exceeds, it is judged that the upper part of the latitudinal arc segment 002 is inclined close to the direction of the dual-axis drive motor 3). If it is close to the direction of the dual-axis drive motor 3, the electric telescopic frame is started at this time to drive the No. 1 micro hydraulic telescopic rod 8 to move toward the direction close to the side constraint plate 5, and cooperate with the No. 1 micro hydraulic telescopic rod 8 to move toward the side constraint plate 5. The inclined latitudinal arc segment 002 can be horizontally placed by stretching (in the process of correcting the dynamic change of the latitudinal arc segment 002, the electric telescopic frame gradually contracts to bring back the No. 1 micro-hydraulic telescopic rod 8 to adjust the tilt state of the No. 1 micro-hydraulic telescopic rod 8, and timely adjust the elongation of the No. 1 micro-hydraulic telescopic rod 8, so that the pressure block 9 and the latitudinal arc segment 002 can maintain effective squeezing), until the latitudinal arc segment 002 is restored to a horizontal placement state (that is, it is judged according to the feedback result of the pressure sensing plate), and then the pull rope 6 is continued to be rolled up to strengthen the side constraint effect between the side constraint plate 5 and the latitudinal arc segment 002, until the outermost surface of the latitudinal arc segment 002 abuts against the surface of the adjustment frame 2;

[0040] Figure 8 It is shown that when the upper part of the weft arc segment 002 is tilted away from the direction of the dual-axis drive motor 3, the No. 2 micro-hydraulic telescopic rod 14 is started first to drive the sliding block 15 to move the weft arc segment 002 in the direction close to the dual-axis drive motor 3, and the inclination state of the weft arc segment 002 is adjusted. At the same time, the second output shaft of the dual-axis drive motor 3 is started to drive the pull rope 6 to reel in a short distance again, and after the movable range of the weft arc segment 002 in the supporting base plate 1 is reduced, the sliding block 15 is reset, and then the state adjustment of the weft arc segment 002 is the same as the steps when the upper part of the weft arc segment 002 is tilted close to the dual-axis drive motor 3.

[0041] The initial elastic force of the elastic arch 7 is not less than the gravity of the side restraint plate 5 , and the projection of the side restraint plate 5 in the vertical direction is located outside the supporting bottom plate 1 when the side restraint plate 5 is in a vertical state with the detection plate 4 .

[0042] Specifically, when the second output shaft of the dual-axis drive motor 3 rotates in the opposite direction, under the action of the elastic arch 7, the side restraint plate 5 can be reset to the initial state autonomously without sagging.

[0043] The positioning member also includes a load-bearing frame 13, the surface of which is provided with an annular groove, and a telescopic movable member 10 is slidably connected inside the annular groove, a telescopic fixed member 11 is fixedly installed on the surface of the load-bearing frame 13, and the telescopic movable member 10 and the telescopic fixed member 11 are arranged at the same height, and the moving ends of the telescopic movable member 10 and the telescopic fixed member 11 are detachably connected to the surface of the supporting base plate 1 on one side away from the adjustment frame 2, and the telescopic movable member 10 and the telescopic fixed member 11 are both structures with adjustable lengths, and a servo motor 12 is arranged on one side of the load-bearing frame 13, and the servo motor 12 is connected to the surface of the load-bearing frame 13 through gears.

[0044] Specifically, the length of the telescopic movable member 10 and the telescopic fixed member 11 can be adjusted according to the radius of the latitudinal arc segment 002 to be spliced, and the actual structure of the telescopic movable member 10 and the telescopic fixed member 11, the load-bearing frame 13 and the servo motor 12 can be adjusted according to the needs to meet the length requirements. When performing splicing and welding, one of the latitudinal arc segments 002 is placed horizontally on the supporting base plate 1 connected to the end of the telescopic fixed member 11, and then the other latitudinal arc segments 002 are placed on the supporting base plate 1 connected to the end of the telescopic movable member 10. The servo motor 12 drives the rotation of the telescopic movable member 10 to drive the two latitudinal arc segments 002 to be spliced ​​and positioned, and then welding can be performed (such as Fig.13 shown);

[0045] When welding the warp arc segment 001, remove the supporting base plate 1 from the ends of the telescopic movable member 10 and the telescopic fixed member 11, install the supporting base plate 1 on the multi-axis mechanical arm with lifting and translation adjustment on the movable trolley, clamp the warp arc segment 001 horizontally, adjust the supporting base plate 1, and use the multi-axis mechanical arm to adjust the clamping angle (such as Fig. 9 As shown), after the warp arc segment 001 is stably fitted with the surfaces of the two circular rings to be welded, the welding is moved around the circular rings, which can quickly position and improve welding efficiency.

[0046] It also includes a detection system, which includes a processor installed on the load-bearing frame 13, and the processor is connected to an input module, a measuring module, a correction module and a constraint positioning module, wherein the input module is used to input the diameter values ​​of the longitudinal arc segment 001 and the latitudinal arc segment 002, the measuring module includes a pressure sensing plate installed in the friction pad, and is used to measure the placement status of the longitudinal arc segment 001 and the latitudinal arc segment 002 on the surface of the supporting base plate 1, the correction module is connected to the No. 1 micro hydraulic telescopic rod 8, the No. 2 micro hydraulic telescopic rod 14 and the electric telescopic bracket signal, and is used to correct the placement status of the longitudinal arc segment 001 and the latitudinal arc segment 002, and the constraint positioning module is connected to the second output shaft signal of the dual-axis drive motor 3, and is used to switch the working state of the side constraint plate 5.

[0047] Specifically, the height of the adjustment frame 2 is usually slightly larger than the diameter value of the longitudinal arc segment 001 or the latitudinal arc segment 002 in the input module. This makes it convenient for the detection plate 4 to pass smoothly over the supporting base plate 1 when the longitudinal arc segment 001 or the latitudinal arc segment 002 is placed at an angle. It can also avoid the side constraint plate 5 failing to achieve the corresponding side constraint effect due to the large height difference between the bottom of the detection plate 4 and the arc segment.

[0048] The second implementation method:

[0049] Fig.10 It is shown that the connection mode between the power end of the second micro hydraulic telescopic rod 14 and the sliding block 15 is replaced by a rotating connection. The power end of the second micro hydraulic telescopic rod 14 is connected to a servo motor 16, and the output end of the servo motor 16 is connected to the surface of the sliding block 15 through a shaft.

[0050] In the initial state, the sliding block 15 is located at a side of the detection plate 4 close to the side restraining plate 5 , and the servo motor 16 is electrically connected to the second micro hydraulic telescopic rod 14 .

[0051] Different from the first embodiment, when the detection plate 4 passes over the warp arc segment 001 or the latitudinal arc segment 002, if the curvature radius of a single warp arc segment 001 or the latitudinal arc segment 002 is large and the arc length is short, even if it is placed at an angle, the height difference of the arc segment area is not large (e.g. Fig.12 As shown), therefore, when the detection plate 4 moves past the warp arc segment 001 or the weft arc segment 002 placed above the supporting base plate 1, the protruding sliding block 15 may scrape against the surface of the warp arc segment 001 or the weft arc segment 002. To improve this phenomenon, the depth of the groove in this embodiment is not less than the thickness of the sliding block 15. When the No. 2 micro-hydraulic telescopic rod 14 is extended, the servo motor 16 starts to drive the sliding block 15 to be placed horizontally and accommodated in the groove, so that the bottom of the detection plate 4 is in a horizontal state. When the No. 2 micro-hydraulic telescopic rod 14 is retracted, the servo motor 16 starts to drive the sliding block 15 to rotate 90 degrees and then be placed vertically, protruding from the bottom of the detection plate 4, so that there is a high degree of overlap with the inclined warp arc segment 001 or the weft arc segment 002 in the vertical direction (as shown Fig.11 as shown).

[0052] In summary, when the present application is performing welding positioning processing on the steel structure lattice shell structure, it is necessary to first clamp the arc segment horizontally, and then the horizontally clamped arc segment can be spliced ​​into circular rings by using the cooperation of the servo motor 12, the telescopic fixed piece 11 and the telescopic movable piece 10. By utilizing the different radii of the circular rings, the elongation lengths of the telescopic fixed piece 11 and the telescopic movable piece 10 can be adjusted to perform splicing and welding processing of circular rings with different radii. After the circular ring welding is completed, it is necessary to perform longitudinal connection between the circular rings (that is, the warp direction). At this time, the warp arc segment 001 after horizontal clamping can be adjusted by using the multi-axis robotic arm that can be raised and lowered and translated on the movable trolley to perform angle adjustment of the warp arc segment 001 so as to perform circular positioning welding processing.

[0053] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A steel structure lattice shell welding positioning device, comprising positioning members for clamping and positioning a warp arc segment (001) and a weft arc segment (002), characterized in that: The positioning member comprises a supporting base plate (1) whose top surface is covered with a friction pad, an adjusting frame (2) is fixedly mounted on the top of one side of the supporting base plate (1), a dual-axis driving motor (3) is mounted on the movable end of the adjusting frame (2) via a bracket, a first output shaft of the dual-axis driving motor (3) is connected to a detection plate (4), a second output shaft of the dual-axis driving motor (3) is connected to a winding disk, a pull rope (6) is wound around the surface of the winding disk, a side restraining plate (5) is mounted on the tail end of the detection plate (4) via a shaft, and one end of the pull rope (6) is connected to the lower surface of the side restraining plate (5), and the top of the detection plate (4) is connected to An elastic arch member (7) is provided in the shape of an arch bridge, and the tail end of the elastic arch member (7) is connected to the upper surface of the side restraint plate (5); a first micro hydraulic telescopic rod (8) is installed above the detection plate (4); a power end of the first micro hydraulic telescopic rod (8) is connected to a pressure block (9); and a hollow groove having a cross-sectional size larger than that of the pressure block (9) is provided inside the detection plate (4); an elastic bundle member (41) is connected inside the hollow groove, and the elastic bundle member (41) is located outside the power end of the first micro hydraulic telescopic rod (8); a depression is provided on the top of the friction pad, and a micro camera is embedded and installed inside the depression, and the height value of the micro camera is less than the depth value of the depression.

2. A steel structure lattice shell welding positioning device according to claim 1, characterized in that: The initial elastic force of the elastic arch (7) is not less than the gravity of the side restraint plate (5), and the projection of the side restraint plate (5) in the vertical direction is located outside the supporting bottom plate (1) when the side restraint plate (5) is in a vertical state with the detection plate (4).

3. A steel structure lattice shell welding positioning device according to claim 1, characterized in that: The positioning member also includes a load-bearing frame (13), a surface of the load-bearing frame (13) is provided with an annular groove, and a telescopic movable member (10) is slidably connected inside the annular groove, a telescopic fixed member (11) is fixedly mounted on the surface of the load-bearing frame (13), and the telescopic movable member (10) and the telescopic fixed member (11) are arranged at the same height, and the movable ends of the telescopic movable member (10) and the telescopic fixed member (11) are both detachably connected to the surface of a side of the supporting bottom plate (1) away from the adjustment frame (2), and the telescopic movable member (10) and the telescopic fixed member (11) are both structures with adjustable lengths, and a servo motor (12) is arranged on one side of the load-bearing frame (13), and the servo motor (12) is transmission-connected to the surface of the load-bearing frame (13) via a gear.

4. A steel structure lattice shell welding positioning device according to claim 1, characterized in that: The surface of the dual-axis drive motor (3) is provided with a follower groove (31), the interior of the follower groove (31) is slidably connected to an electric telescopic bracket, and the power end of the electric telescopic bracket is movably connected to the surface of the first micro hydraulic telescopic rod (8).

5. A steel structure lattice shell welding positioning device according to claim 3, characterized in that: A second micro hydraulic telescopic rod (14) is installed on the back of the supporting base plate (1), and the power end of the second micro hydraulic telescopic rod (14) is fixedly connected to a sliding block (15) slidably connected to a groove arranged at the bottom of the detection plate (4), and the cross-sectional size of the sliding block (15) is smaller than the cross-sectional size of the detection plate (4), the bottom surface of the sliding block (15) protrudes from the bottom surface of the detection plate (4), and the two end points of the displacement of the sliding block (15) are both located on the side of the pressing block (9) away from the dual-axis drive motor (3).

6. A steel structure lattice shell welding positioning device according to claim 5, characterized in that: The invention also includes a detection system, the detection system including a processor mounted on the load-bearing frame (13), the processor being connected to an input module, a measuring module, a correction module and a constraint positioning module, wherein the input module is used to input the diameter values ​​of the warp arc segment (001) and the weft arc segment (002), the measuring module including a pressure sensing plate mounted in a friction pad and being used to measure the placement state of the warp arc segment (001) and the weft arc segment (002) on the surface of the supporting base plate (1), the correction module being connected to the first micro hydraulic telescopic rod (8), the second micro hydraulic telescopic rod (14) and the electric telescopic bracket signal and being used to correct the placement state of the warp arc segment (001) and the weft arc segment (002), and the constraint positioning module being connected to the second output shaft signal of the dual-axis drive motor (3) and being used to switch the working state of the side constraint plate (5).

7. A steel structure lattice shell welding positioning device according to claim 5, characterized in that: The connection mode between the power end of the second micro hydraulic telescopic rod (14) and the sliding block (15) is replaced by a rotational connection, the power end of the second micro hydraulic telescopic rod (14) is connected to a servo motor (16), and the output end of the servo motor (16) is connected to the surface of the sliding block (15) via a shaft.

8. A steel structure lattice shell welding positioning device according to claim 7, characterized in that: In the initial state, the sliding block (15) is located on a side of the detection plate (4) close to the side restraining plate (5), and the servo motor (16) is electrically connected to the second micro hydraulic telescopic rod (14).

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