A welding positioning device for the construction of large-span steel structure buildings

Abstract

The present invention relates to a welding positioning device for large-span steel structure building construction in the field of welding devices, comprising a bottom frame, on which a plurality of pallets for placing steel structural members are mounted, and cylinders are connected between both ends of the pallets and the bottom frame; the pallet comprises a main plate body, on which a pair of rectangular through holes are opened, and between the pair of rectangular through holes a plurality of auxiliary through holes are opened, and a frame pocket covering the rectangular through holes is fixedly connected at the lower end of the main plate body, and a working arm is arranged on the upper side of the bottom frame; a first fixing unit and a second fixing unit are mounted on the pallet, and by presetting the placement coordinates of the steel structure on the pallet, and utilizing the positioning data of the positioning holes and strip holes on the pallet, combined with the automatic position adjustment of the first fixing unit and the second fixing unit by the working arm, it is convenient to realize the complex positioning requirements when welding different types of steel structural members in the large-span steel structure, and it is convenient to realize automatic positioning installation and precise positioning.

Description

Technical Field

[0001] A steel structure welding positioning device involved in the present invention, in particular, a welding positioning device for the construction of large-span steel structure buildings applied in the field of welding devices. Background Art

[0002] Existing welding positioning devices for the construction of large-span steel structure buildings usually include precise mechanical positioning systems and advanced electronic measurement technologies to ensure high precision and stability during the welding process. These devices usually adopt laser tracking systems, automatically adjustable jigs, and high-precision sensors, which can monitor and adjust the position and angle of components in real time to ensure the precise alignment of welding joints. In addition, some advanced positioning devices also integrate computer control systems, which automatically adjust the welding position according to pre-programmed parameters, improving construction efficiency and welding quality. The application of these technologies has significantly improved the construction precision and safety of large-span steel structure buildings, while reducing the errors of manual operations and construction time.

[0003] The specification of Chinese invention CN119115360A discloses a multi-angle adjustable welding device and welding method for large-span steel structures, which relates to the technical field of welding devices. The multi-angle adjustable welding device for large-span steel structures is beneficial to adjust the welding angle of steel structures, is convenient to operate, is beneficial to lift the steel structure, quickly weld the bottom of the steel structure, saves physical strength, is convenient to timely clean the welding slag generated during welding, and prevents the welding slag from affecting the product quality.

[0004] The specification of Chinese invention CN115229371A discloses a welding device for the joints of large-span arched steel structure truss bridges. By setting the cooperation of an air inlet hood, a filtering cavity, a photocatalyst filter screen, and a fan, when a worker uses a welding torch for welding, the switch of the fan can be turned on while welding. The gas with pungent smell generated by welding is sucked into the partition through the air inlet hood and discharged after being purified by the filtering cavity, achieving the benefits of improving the working environment and reducing the harm to the health of workers.

[0005] Existing large-span steel structures often have complex structures, and it is inconvenient to position their structural members during welding. Usually, they are manually placed and then manually positioned and fixed before manual welding, or the position data is collected after manual positioning and fixing, and then welding is performed by an automated welding device, which is very troublesome. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing large-span steel structures are often complex in structure, and it is inconvenient to position their structural parts during welding. They are often manually placed and manually positioned and fixed before manual welding, or manually positioned and fixed before collecting position data and then welding is performed through an automated welding device, which is very troublesome.

[0007] In order to solve the above problems, the present invention provides a welding positioning device for large-span steel structure construction, comprising a bottom frame, on which a plurality of support plates for placing steel structure members are mounted, and cylinders are connected between both ends of the support plates and the bottom frame;

[0008] The support plate includes a main board body, a pair of rectangular through holes are opened on the main board body, a plurality of auxiliary through holes are opened between the pair of rectangular through holes, a frame pocket covering the rectangular through holes is fixedly connected to the lower end of the main board body, and a plurality of positioning holes and strip holes are opened on the main board body;

[0009] At least one pair of transverse guide rails is provided on the upper side of the bottom frame, a bracket is connected between the transverse guide rails and the bottom frame, a movable plate is connected between the movable ends of the pair of transverse guide rails, a longitudinal guide rail is installed at the lower end of the movable plate, and a working arm is installed at the movable end of the movable plate;

[0010] The working arm includes a mechanical arm body, the movable end of the mechanical arm body is rotatably connected to a protective shell, a pair of clamping plates are slidably connected to the protective shell, a cross shaft is inserted in the middle of the protective shell, a double-axis cylinder matching the clamping plates is installed on the protective shell, a motor matching the cross shaft is installed in the protective shell, a telescopic shaft is connected between the power output end of the motor and the cross shaft, and an electric push rod is connected between the movable end of the telescopic shaft and the inner wall of the protective shell;

[0011] The support plate is provided with a first fixing unit and a second fixing unit which match the positioning hole and the strip hole respectively. The first fixing unit is used to limit the edge of the steel structure, and the second fixing unit is used to support the steel structure.

[0012] In the above-mentioned welding positioning device for large-span steel structure construction, it is easy to realize the complex positioning requirements when welding different types of steel structural parts in large-span steel structures, and it is easy to realize automated positioning installation and precise positioning.

[0013] As a further improvement of the present application, the first fixing unit includes a limit block, a first threaded rod is threadedly connected to the limit block, and a first pressing plate is rotatably connected to the first threaded rod;

[0014] The second fixing unit includes a lower strip, the bottom end of the lower strip is fixedly connected to a clamping strip, the upper side of the lower strip is provided with a supporting strip, a telescopic rod is connected between one end of the lower strip and the supporting strip, the other end of the lower strip is rotatably connected to a second threaded rod, the second threaded rod is threadedly connected to the supporting strip, and a second pressing plate is rotatably connected to the second threaded rod.

[0015] As a further improvement of the present application, the positioning holes are distributed at both ends of the main board body and on both sides of the rectangular through hole, and the strip holes are distributed on both sides of the auxiliary through hole and between the auxiliary through hole and the rectangular through hole.

[0016] As a further improvement of the present application, the maximum height of the first fixing unit and the second fixing unit is smaller than the distance between the frame pocket and the upper surface of the main board body, and the maximum length of the first fixing unit and the second fixing unit is smaller than the width of the rectangular through hole.

[0017] As another improvement of the present application, auxiliary rings are connected to the first pressing plate and the second pressing plate, the first threaded rod and the second threaded rod are respectively arranged in the middle of the two auxiliary rings, and a damping layer is laid on the outer ends of the auxiliary rings.

[0018] As another improvement of the present application, the frame pocket includes a plurality of evenly distributed ladder frames, and the spacing between two adjacent ladder frames is greater than the diameter of the first threaded rod and less than the width of the second fixing unit.

[0019] As another improvement of the present application, an image acquisition device and a laser ranging sensor are installed on the protective shell, and a displacement sensor is installed on the support plate.

[0020] As another improvement of the present application, an auxiliary positioning system is also included, the auxiliary positioning system includes a processor, and the processor is connected to a control module, a data processing module, a monitoring module, a data storage module and a communication module;

[0021] The control module is used to control the designated equipment to work according to the set program;

[0022] The data processing module is used to process monitoring data;

[0023] The monitoring module is used to collect monitoring data, including image data, pallet displacement data and working arm positioning data;

[0024] The data storage module is used to store monitoring data and preset parameters. The data storage module stores initial coordinate data of the positioning holes and the strip holes and parameter data of the first fixing unit and the second fixing unit. The initial coordinate data of the positioning holes and the strip holes are determined according to a coordinate system established with the bottom frame as a reference.

[0025] The communication module is used to establish a communication connection with an external device.

[0026] In summary, this solution presets the placement coordinates of the steel structure on the pallet, utilizes the positioning data of the positioning holes and strip holes on the pallet, and combines the working arm with the automated position adjustment of the first fixed unit and the second fixed unit to facilitate the realization of complex positioning requirements during welding of different types of steel structural parts in large-span steel structures, and facilitates automated positioning installation and precise positioning. Description of the Drawings

[0027] Figure 1 Is a perspective view of the first embodiment of the present application;

[0028] Figure 2 Is Figure 1 The structural schematic diagram at position A in;

[0029] Figure 3 Is the perspective view of the pallet of the first embodiment of the present application;

[0030] Figure 4 Is the side sectional view at the working arm of the first embodiment of the present application;

[0031] Figure 5 Is Figure 4 The structural schematic diagram at position B in;

[0032] Figure 6 Is the perspective view of the first fixing unit of the second embodiment of the present application;

[0033] Figure 7 Is the perspective view of the second fixing unit of the second embodiment of the present application;

[0034] Figure 8 Is the partial schematic diagram when the working arm of the second embodiment of the present application clamps the second fixing unit;

[0035] Figure 9 Is the schematic diagram of the coordinate system established with the bottom frame as the reference in the third embodiment of the present application.

[0036] Explanation of the reference numerals in the drawings:

[0037] 1. Bottom frame; 2. Pallet; 21. Main board body; 22. Frame pocket; 23. Positioning hole; 24. Strip hole; 3. Horizontal guide rail; 4. Movable plate; 5. Working arm; 51. Manipulator main body; 52. Protective shell; 53. Clamping plate; 54. Cross shaft; 6. First fixing unit; 61. Limit block; 62. First threaded rod; 63. First pressing plate; 7. Second fixing unit; 71. Lower strip board; 72. Card strip; 73. Supporting strip; 74. Second threaded rod; 75. Second pressing plate. Detailed Description of the Embodiments

[0038] The following will describe the three embodiments of the present application in detail with reference to the drawings.

[0039] The first embodiment:

[0040] Figures 1-8A welding positioning device for large-span steel structure construction is shown, comprising a bottom frame 1, on which a plurality of support plates 2 for placing steel structure members are mounted, and cylinders are connected between both ends of the support plates 2 and the bottom frame 1, and the cylinders are used to drive the support plates 2 to move along the length direction of the bottom frame 1;

[0041] The support plate 2 includes a main board body 21, a pair of rectangular through holes are opened on the main board body 21, a plurality of auxiliary through holes are opened between the pair of rectangular through holes, a frame pocket 22 covering the rectangular through holes is fixedly connected to the lower end of the main board body 21, and a plurality of positioning holes 23 and strip holes 24 are opened on the main board body 21; the positioning holes 23 are distributed at both ends of the main board body 21 and on both sides of the rectangular through holes, and the strip holes 24 are distributed on both sides of the auxiliary through holes and between the auxiliary through holes and the rectangular through holes.

[0042] The support plate 2 is provided with a first fixing unit 6 and a second fixing unit 7 which match the positioning hole 23 and the strip hole 24 respectively. The first fixing unit 6 is used to limit the edge of the steel structure, and the second fixing unit 7 is used to support the steel structure.

[0043] The frame pocket 22 includes a plurality of evenly distributed ladder frames, and the distance between two adjacent ladder frames is greater than the diameter of the first threaded rod 62 and less than the width of the second fixing unit 7; the frame pocket 22 is used to place the first fixing unit 6 and the second fixing unit 7;

[0044] At least one pair of transverse guide rails 3 are provided on the upper side of the bottom frame 1, a bracket is connected between the transverse guide rails 3 and the bottom frame 1, a movable plate 4 is connected between the movable ends of the pair of transverse guide rails 3, a longitudinal guide rail is installed at the lower end of the movable plate 4, and a working arm 5 is installed at the movable end of the movable plate 4;

[0045] The working arm 5 includes a mechanical arm body 51, the movable end of the mechanical arm body 51 is rotatably connected to a protective shell 52, a pair of clamping plates 53 are slidably connected to the protective shell 52, a cross shaft 54 ​​is inserted in the middle of the protective shell 52, a double-axis cylinder matching the clamping plate 53 is installed on the protective shell 52, a motor matching the cross shaft 54 ​​is installed in the protective shell 52, a telescopic shaft is connected between the power output end of the motor and the cross shaft 54, and an electric push rod is connected between the movable end of the telescopic shaft and the inner wall of the protective shell 52; an image acquisition device and a laser ranging sensor are installed on the protective shell 52, and a displacement sensor is installed on the support plate 2; the image acquisition device is used to assist in identifying the first fixed unit 6 and the second fixed unit 7, and the laser ranging sensor is used to detect the height data of the second fixed unit 7;

[0046] When the working arm 5 is working, it drives the protective shell 52 to move in three-dimensional space, controls the operation of the robot arm body 51 to adjust the position of the protective shell 52, and then controls the double-axis cylinder to adjust the distance between the pair of clamping plates 53, so that the pair of clamping plates 53 clamps the first fixing unit 6 or the second fixing unit 7;

[0047] The working arm 5 is used to install the first fixing unit 6 or the second fixing unit 7, and the working arm 5 adjusts the position of the first fixing unit 6 or the second fixing unit 7 according to the placement position of the workpiece to be welded on the pallet 2.

[0048] When this solution works, before placing the steel structure member to be processed on the pallet 2, first adjust the position of the first fixing unit 6 or the second fixing unit 7 by controlling the working arm 5. Those skilled in the art control the working arm 5 to take out the required number of the first fixing units 6 or the second fixing units 7 from the frame pocket 22 and then install them on the pallet 2 according to the needs of steel structure welding; the edge of the steel structure to be welded is limited by the first fixing unit 6, and the steel structure to be welded is supported by the second fixing unit 7 to meet the positioning requirements during welding of steel structures with different shapes.

[0049] This implementation method is convenient for realizing efficient and accurate steel structure welding positioning; through the flexible adjustment of the first fixing unit 6 and the second fixing unit 7 by the working arm 5, it is convenient to quickly adapt to steel structure members with different shapes and sizes, and it is easy to meet the welding requirements of complex steel structures during large-span steel structure welding.

[0050] The second implementation method:

[0051] Among them, the same or corresponding components as those in Embodiment 1 adopt the corresponding reference numerals in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 will be described below. The difference between this Embodiment 2 and Embodiment 1 is as follows:

[0052] Figures 6-7 As shown, the first fixing unit 6 includes a limiting block 61. The limiting block 61 is provided with at least one flat side. A first threaded rod 62 is threadedly connected to the limiting block 61, and a first pressing plate 63 is rotatably connected to the first threaded rod 62.

[0053] The second fixing unit 7 includes a lower strip 71. A clamping strip 72 is fixedly connected to the bottom end of the lower strip 71. A supporting strip 73 is provided on the upper side of the lower strip 71. A groove is opened at the upper end of the supporting strip 73. A telescopic rod is connected between one end of the lower strip 71 and the supporting strip 73. A second threaded rod 74 is rotatably connected to the other end of the lower strip 71. The second threaded rod 74 is threadedly connected to the supporting strip 73, and a second pressing plate 75 is rotatably connected to the second threaded rod 74.

[0054] Docking grooves matching the cross shaft 54 are opened at the tops of the first threaded rod 62 and the second threaded rod 74; when the first fixing unit 6 or the second fixing unit 7 is installed, the cross shaft 54 is docked with the docking groove, and then the first threaded rod 62 and the second threaded rod 74 are rotated; by rotating and pressing down the first threaded rod 62, the bottom of the first threaded rod 62 is inserted into the positioning hole 23 to realize the fixation of the first fixing unit 6.

[0055] By rotating the second threaded rod 74, the supporting bar 73 is displaced up and down along the second threaded rod 74; the height of the supporting bar 73 is adjusted to carry steel structure parts of different heights; the height of the supporting bar 73 is detected by a laser distance sensor on the protective shell 52; if the height of the supporting bar 73 does not meet the placement requirements of the steel structure to be carried, the working arm 5 is driven to dock the cross shaft 54 with the second threaded rod 74, and then the cross shaft 54 is rotated by the motor to adjust the height of the supporting bar 73.

[0056] The maximum height of the first fixing unit 6 and the second fixing unit 7 is less than the distance between the frame pocket 22 and the upper surface of the main board body 21, and the maximum length of the first fixing unit 6 and the second fixing unit 7 is less than the width of the rectangular through hole.

[0057] Auxiliary rings are connected to both the first pressing plate 63 and the second pressing plate 75. The first threaded rod 62 and the second threaded rod 74 are respectively arranged in the middle of the two auxiliary rings, and a damping layer is laid on the outer ends of the auxiliary rings; when the first fixing unit 6 and the second fixing unit 7 are installed, by controlling a pair of clamping plates 53 to clamp the auxiliary rings, and then rotating the protective shell 52, the first pressing plate 63 and the second pressing plate 75 are rotated to the upper side of the steel structure to limit the steel structure.

[0058] This embodiment facilitates the precise positioning and stable support of the steel structure before welding. Through the design of the first and second fixing units, not only the stability of the steel structure parts during the installation process is ensured, especially the height-adjustable function of the supporting bar 73, enabling the second fixing unit 7 to adapt to steel structure parts of different sizes, which facilitates a wider range of applications.

[0059] The 3rd embodiment:

[0060] Among them, the same or corresponding components as those in Embodiment 1 adopt the corresponding reference numerals in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 will be described below. The differences between this Embodiment 3 and Embodiment 1 are as follows:

[0061] Figure 9 It is shown that an auxiliary positioning system is further included. The auxiliary positioning system includes a processor, and a control module, a data processing module, a monitoring module, a data storage module, and a communication module are connected to the processor;

[0062] The control module is used to control the specified device to work according to the set program; the control module receives instructions and coordinates the actions of actuators such as cylinders and motors;

[0063] The data processing module is used to process the monitoring data; the data processing module processes displacement data and image data to generate the positioning parameters of the first fixing unit 6 and the second fixing unit 7;

[0064] The monitoring module is used to collect monitoring data, which includes image data, displacement data of the pallet 2, and positioning data of the working arm 5;

[0065] The data storage module is used to store monitoring data and preset parameters. The data storage module stores the initial coordinate data of the positioning holes 23 and the strip holes 24, as well as the parameter data of the first fixing unit 6 and the second fixing unit 7; the initial coordinate data of the positioning holes 23 and the strip holes 24 are determined according to the coordinate system established with the bottom frame 1 as the reference; the data storage module also stores historical operation records;

[0066] The communication module is used to establish a communication connection with external devices, such as: a feeding device and a welding device; appropriate external devices are set by those skilled in the art for connection; the feeding device is used to place the steel structure parts at the specified positions on the pallet 2, and those skilled in the art select an appropriate feeding device to establish a communication connection with the communication module,

[0067] It should be noted that when the pallet 2 is displaced by the cylinder, the coordinates of the corresponding positioning holes 23 and strip holes 24 on it are adjusted according to the displacement distance;

[0068] Before welding work, those skilled in the art input the steel structure data to be welded, including model data or parameter data, into the data processing module, and then those skilled in the art preset the placement coordinates of the steel structure on multiple pallets 2, and then according to the placement coordinates, set the specified positioning holes 23 and strip holes 24 to install the first fixing unit 6 and the second fixing unit 7;

[0069] When setting the position of the first fixing unit 6, its planar side coincides with the edge of the steel structure it limits. When setting the position of the second fixing unit 7, its long side is perpendicular to the steel structure to be carried or one of its sides coincides with the edge position of a steel structure;

[0070] After the setting is completed, the working arm 5 installs the first fixing unit 6 and the second fixing unit 7 to the specified coordinate positions in sequence. When the installation of the first fixing unit 6 or the second fixing unit 7 is completed for all the specified positioning holes 23 and strip holes 24 set above, the work ends.

[0071] This embodiment realizes the automatic operation of the welding positioning device. By presetting the placement coordinates of the steel structure on the pallet 2 and combining with the specified positioning holes 23 and strip holes 24 for the installation of the first fixing unit 6 and the second fixing unit 7, the accuracy of welding positioning is further ensured.

[0072] In summary, in this solution, by presetting the placement coordinates of the steel structure on the pallet 2 and using the positioning data of the positioning holes 23 and the strip holes 24 on the pallet 2, combined with the automatic position adjustment of the working arm 5 for the first fixing unit 6 and the second fixing unit 7, it is convenient to meet the complex positioning requirements during the welding of different types of steel structure parts in the long-span steel structure, and it is convenient to achieve automatic positioning installation and accurate positioning.

[0073] Combined with the current actual requirements, the above implementation manner adopted in this application, the scope of protection is not limited thereto. Within the scope of knowledge possessed by those skilled in the art, various changes made without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A welding positioning device for the construction of large-span steel structure buildings, comprising a bottom frame (1), and a plurality of supporting plates (2) for placing steel structure members are installed on the bottom frame (1), and it is characterized in that: Cylinders are connected between both ends of the support plate (2) and the bottom frame (1); The support plate (2) comprises a main body (21), a pair of rectangular through holes are formed on the main body (21), a plurality of auxiliary through holes are formed between the pair of rectangular through holes, a frame pocket (22) covering the rectangular through holes is fixedly connected to the lower end of the main body (21), and a plurality of positioning holes (23) and strip holes (24) are formed on the main body (21); initial coordinate data of the positioning holes (23) and the strip holes (24) and parameter data of the first fixing unit (6) and the second fixing unit (7) are stored in the data storage module; the initial coordinate data of the positioning holes (23) and the strip holes (24) are determined according to a coordinate system established with the bottom frame (1) as a reference; At least one pair of transverse guide rails (3) is provided on the upper side of the bottom frame (1); a bracket is connected between the transverse guide rails (3) and the bottom frame (1); a movable plate (4) is connected between the movable ends of the pair of transverse guide rails (3); a longitudinal guide rail is installed at the lower end of the movable plate (4); and a working arm (5) is installed at the movable end of the movable plate (4); The working arm (5) comprises a mechanical arm body (51), the movable end of the mechanical arm body (51) is rotatably connected to a protective shell (52), a pair of clamping plates (53) are slidably connected to the protective shell (52), a cross shaft (54) is inserted in the middle of the protective shell (52), a double-axis cylinder matching the clamping plate (53) is installed on the protective shell (52), an electric motor matching the cross shaft (54) is installed in the protective shell (52), a telescopic shaft is connected between the power output end of the electric motor and the cross shaft (54), and an electric push rod is connected between the movable end of the telescopic shaft and the inner wall of the protective shell (52); The support plate (2) is provided with a first fixing unit (6) and a second fixing unit (7) which are matched with the positioning hole (23) and the strip hole (24) respectively, wherein the first fixing unit (6) is used to limit the edge of the steel structure, and the second fixing unit (7) is used to support the steel structure; The first fixing unit (6) comprises a limit block (61), a first threaded rod (62) being threadedly connected to the limit block (61), and a first pressing plate (63) being rotatably connected to the first threaded rod (62); The second fixing unit (7) comprises a lower strip plate (71), the bottom end of the lower strip plate (71) is fixedly connected to a clamping strip (72), the upper side of the lower strip plate (71) is provided with a supporting strip (73), a telescopic rod is connected between one end of the lower strip plate (71) and the supporting strip (73), the other end of the lower strip plate (71) is rotatably connected to a second threaded rod (74), the second threaded rod (74) is threadedly connected to the supporting strip (73), and a second pressing plate (75) is rotatably connected to the second threaded rod (74); By presetting the placement coordinates of the steel structure on the support plate (2), and using the positioning data of the positioning holes (23) and the strip holes (24) on the support plate (2), the positions of the first fixing unit (6) and the second fixing unit (7) are automatically adjusted in combination with the working arm (5).

2. A welding positioning device for the construction of a long-span steel structure building according to claim 1, characterized in that: The positioning holes (23) are distributed at both ends of the main board body (21) and on both sides of the rectangular through hole, and the strip holes (24) are distributed on both sides of the secondary through hole and between the secondary through hole and the rectangular through hole.

3. The welding positioning device for the construction of a large-span steel structure building according to claim 2, characterized in that: The maximum height of the first fixing unit (6) and the second fixing unit (7) is less than the distance between the frame pocket (22) and the upper surface of the main board body (21), and the maximum length of the first fixing unit (6) and the second fixing unit (7) is less than the width of the rectangular through hole.

4. A welding positioning device for large-span steel structure building construction according to claim 3, It is characterized in that: Auxiliary rings are connected to both the first pressing plate (63) and the second pressing plate (75). The first threaded rod (62) and the second threaded rod (74) are respectively arranged in the middle of the two auxiliary rings, and a damping layer is laid on the outer ends of the auxiliary rings.

5. A welding positioning device for the construction of a large-span steel structure building according to claim 4, characterized in that: The frame pocket (22) includes a plurality of uniformly distributed trapezoidal frames, and the distance between adjacent two trapezoidal frames is greater than the diameter of the first threaded rod (62) and less than the width of the second fixing unit (7).

6. The welding positioning device for the construction of a large-span steel structure building according to claim 5, characterized in that: An image acquisition device and a laser range finder are installed on the protective shell (52), and a displacement sensor is installed on the support plate (2).

7. A welding positioning device for the construction of a large-span steel structure building according to claim 6, characterized in that: It further includes an auxiliary positioning system, and the auxiliary positioning system includes a processor, and a control module, a data processing module, a monitoring module, a data storage module and a communication module are connected to the processor; The control module is used to control the specified device to work according to the set program; The data processing module is used to process the monitoring data; The monitoring module is used to collect monitoring data, and the monitoring data includes image data, displacement data of the support plate (2) and positioning data of the working arm (5); The data storage module is used to store the monitoring data and preset parameters; The communication module is used to establish a communication connection with external devices.

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