Steel structure welded ball positioning device

Abstract

The present application relates to the technical fields of building welding, in particular to a steel structure welding ball positioning device, comprising a welding base, a welding ball positioning module and an auxiliary positioning module are installed above the welding base for positioning the welding ball, and a control device is further arranged on one side of the welding ball positioning module and fixedly connected with the welding base; before welding, the lower welding half-circle ball is placed into the auxiliary positioning module, supported by the upper auxiliary supporting balls of the positioning disc, and then the other half welding half-circle ball with holes is butt-jointed by slope surface, the spherical surface positioning mechanism is adjusted into the inside of the welding half-circle ball with holes by the welding ball positioning module, and then the spherical surface positioning mechanism is expanded by driving the telescopic device, so that the upper and lower two groups of welding half-circle balls are automatically centered and positioned, spot welding pre-fixing is facilitated, after pre-fixing is completed, the welding ball positioning module and the auxiliary positioning module are synchronously driven, the welding ball is rotated by 90 degrees, and continuous welding along the butt-joint groove is facilitated.

Description

Technical Field

[0001] This invention relates to the field of building welding technology, specifically to a steel structure welding ball positioning device. Background Technology

[0002] Welded spheres, also known as welded hollow spheres, are core node components in spatial steel structures such as space frames and shells. They are formed by stamping two hemispheres from steel plates and then butt-welding them together. They come in two forms: without ribs and with internal stiffening ribs, and are commonly made of Q235B and Q345B steel. Steel pipe members are directly welded to the surface of the sphere to form a rigid node, allowing for multi-directional member convergence, uniform stress distribution, high stiffness, and strong adaptability. They are often used in large-span buildings with heavy loads, such as stadiums, convention centers, and airport terminal roofs. This node requires high-precision welding processes, and the welds need to be inspected for defects. It is suitable for spatial grid projects with heavy loads and large member dimensions.

[0003] Current market processing techniques for welded hollow spheres generally involve pre-fixing two hemispheres by aligning them with spot welding, then placing them in a clamping device for compression positioning. The positioning fixtures typically employ external wall clamping and support. However, considering the standard construction procedures for prefabrication and welding of welded spheres in factories, followed by rust removal and anti-corrosion coating, this process suffers from several easily overlooked industry shortcomings: the hemispheres are heavy, requiring manual handling and fine-tuning before alignment and spot welding, making the alignment operation difficult; rigid external wall clamping easily creates indentations, scratches, and uneven deformation on the surface of the raw sphere, significantly increasing the workload for subsequent grinding, rust removal, and leveling; deep indentations easily accumulate dirt and impurities, leading to problems such as blistering and peeling of the anti-corrosion coating later. Furthermore, clamps and multi-point external wall support fixtures can obscure large areas of the welding bevel, preventing continuous welding. The obscured areas require removal of the fixtures for re-welding, creating weld joints and reducing the quality of the welded sphere. Therefore, to address these issues, a steel structure welded sphere positioning device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a steel structure welded ball positioning device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: As an optional solution of the steel structure welded ball positioning device of the present invention, the steel structure welded ball positioning device includes a welding base, a welded ball positioning module, a control device and an auxiliary positioning module. Above the welding base are a welding ball positioning module and an auxiliary positioning module for positioning the welding ball, and a control device that is fixedly connected to the welding base is also provided on one side of the welding ball positioning module. The welding ball positioning module includes a first arc-shaped trajectory moving device, a first arc-shaped guide frame, and a moving cylinder. The moving end of the first arc-shaped trajectory moving device is equipped with a cylinder device. The free end of the cylinder device is fixedly connected to a rotating device. The free end of the rotating device is fixedly connected to the moving cylinder. The outer side of the moving cylinder is slidably connected to the first arc-shaped guide frame. One side of the first arc-shaped guide frame is fixedly connected to the first arc-shaped trajectory moving device. The inside of the movable cylinder is fixedly connected to a telescopic device. The free end of the telescopic device is fixedly connected to a spherical positioning mechanism. The outer side of the spherical positioning mechanism is slidably connected to the movable cylinder. The other end of the spherical positioning mechanism is fixedly connected to an arc-shaped electromagnet.

[0006] As an optional solution to the steel structure welded ball positioning device described in this invention, wherein: One side of the movable cylinder is provided with an arc-shaped positioning surface, which is set as an inwardly concave arc surface.

[0007] Current market processes for welding hollow spheres generally involve pre-fixing two hemispheres by aligning them with spot welding, then placing them in a clamping device for compression positioning. The positioning fixtures typically employ external wall clamping and support. Considering the standard construction procedures for pre-welding and rust removal / anti-corrosion coating in a welding sphere factory, this process has several shortcomings easily overlooked in the industry: the hemispheres are relatively heavy, requiring manual handling and alignment before spot welding, making alignment difficult; rigid external wall clamping easily creates indentations, scratches, and uneven deformation on the surface of the raw sphere, significantly increasing the workload for subsequent grinding, rust removal, and leveling; deep indentations easily accumulate dirt and impurities, leading to problems such as blistering and peeling of the anti-corrosion coating later. Furthermore, clamps and multi-point external wall support fixtures can obscure the welding bevel over a large area, preventing continuous welding. The obscured areas require removal of the fixtures for re-welding, creating welding joints and reducing the quality of the sphere's welded shape. This device integrates pre-positioning and precise positioning. Before commencing the pre-positioning of the welded spheres, positioning holes are first drilled at the end of one side of the welded hemisphere. The lower welded hemisphere is then placed into the auxiliary positioning module, supported by several auxiliary support balls on the upper part of the positioning plate. The other half of the welded hemisphere with the hole is then beveled together. The welding sphere positioning module is adjusted so that the spherical positioning mechanism extends into the perforated welded hemisphere. This, in turn, drives the telescopic device to expand the spherical positioning mechanism, achieving adaptive automatic centering and positioning of the upper and lower sets of welded hemispheres, facilitating pre-fixing for spot welding. After pre-fixing, the welding sphere positioning module and the auxiliary positioning module are driven synchronously to rotate the welding sphere 90°, facilitating continuous welding along the butt joint bevel.

[0008] As an optional solution to the steel structure welded ball positioning device described in this invention, wherein: The spherical positioning mechanism includes a positioning cylinder and an adjusting rod. The adjusting rod is slidably connected inside the positioning cylinder, and one end of the adjusting rod is fixedly connected to the free end of the telescopic device. The outer side of the positioning cylinder is provided with a first groove, a second groove, and a third groove, which are evenly distributed. The first groove contains a first positioning plate that is rotatably connected to the positioning cylinder. A first rotating rod is rotatably connected to one side of the first positioning plate, and the other end of the first rotating rod is rotatably connected to an adjusting rod. The second groove contains a second positioning plate. A second rotating rod and a rotating shaft are rotatably connected to one side of the second positioning plate. One end of the second rotating rod is rotatably connected to the adjusting rod, and the other end of the rotating shaft is rotatably connected to the positioning cylinder. The third groove contains a third positioning plate. One end of the third positioning plate is rotatably connected to the positioning cylinder, and the other end of the third positioning plate is rotatably connected to a third rotating rod. The other end of the third rotating rod is rotatably connected to the adjusting rod. An arc-shaped electromagnet is installed on one side of the positioning cylinder.

[0009] As an optional solution to the steel structure welded ball positioning device described in this invention, wherein: The third positioning plate is curved on the side facing away from the positioning cylinder, and the first positioning plate is also curved on the side facing away from the positioning cylinder.

[0010] As an optional solution to the steel structure welded ball positioning device described in this invention, wherein: The second positioning plate is arc-shaped on the side facing away from the positioning cylinder, and a groove is also provided on the surface of the second positioning plate.

[0011] As an optional solution to the steel structure welded ball positioning device described in this invention, wherein: The auxiliary positioning module includes a second arc-shaped trajectory mobile device, a second arc-shaped guide frame, and a connecting rod. The outer side of the second arc-shaped trajectory mobile device is fixedly connected to the welding base. The moving end of the second arc-shaped trajectory mobile device is equipped with a connecting rod, and the other end of the connecting rod is fixedly connected to a positioning disk. The surface of the positioning disk is equipped with evenly distributed spherical sleeves, and auxiliary support balls are rolled inside the spherical sleeves.

[0012] As an optional solution to the steel structure welded ball positioning device described in this invention, wherein: A second arc-shaped guide frame is fixedly connected to one side of the second arc-shaped trajectory mobile device, and the inner side of the second arc-shaped guide frame is slidably connected to the connecting rod.

[0013] This device improves upon the traditional external clamping and fixing method by adopting an internal support and external expansion positioning structure. Multiple sets of first and third positioning plates adhere to the inner wall of the sphere for support, completing sphere center alignment and locking. The entire process involves no contact with the outer wall of the sphere and no bevel obstruction. The second positioning plate has a clearance groove to avoid the bevel welding area, preventing molten solder from adhering to the components and ensuring smooth retraction of the support mechanism. This device eliminates the indentations and localized deformation of the sphere blank caused by traditional external clamping, significantly reducing subsequent grinding and rust removal work, and preventing peeling and hollowing of the anti-corrosion coating from the source. It is particularly suitable for thin-walled hollow welded spheres, overcoming the pain points of thin-walled components being easily dented and deformed by rigid external clamping and the difficulty of stable clamping with conventional tooling. It aligns with the standard manufacturing process of steel structure welded spheres, which involves welding first and then applying overall anti-corrosion coating, filling the industry gap in internal support positioning technology without external wall contact or bevel obstruction.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This device integrates pre-positioning and precise positioning. Before pre-positioning the welding ball, positioning holes are first made at the end of one side of the welding hemisphere. The lower welding hemisphere is then placed into the auxiliary positioning module, supported by several auxiliary support balls on the upper part of the positioning plate. The other half of the welding hemisphere with the hole is then beveled together. By adjusting the welding ball positioning module, the spherical positioning mechanism extends into the perforated welding hemisphere, and then the telescopic device is driven to expand the spherical positioning mechanism, achieving adaptive automatic centering and positioning of the upper and lower welding hemispheres, facilitating spot welding pre-fixation. After pre-fixation, the welding ball positioning module and the auxiliary positioning module are driven simultaneously to rotate the welding ball 90°, facilitating continuous welding along the butt joint bevel. This setup does not require abandoning the traditional clamping positioning method, ensuring the quality of the outer wall of the welding ball and reducing the workload of subsequent grinding, rust removal, and leveling. At the same time, the bevel welding area is unobstructed, enabling continuous welding and ensuring the quality of the sphere welding.

[0015] This device improves upon the traditional external clamping and fixing method by adopting an internal support and external expansion positioning structure. Multiple sets of first and third positioning plates adhere to the inner wall of the sphere for support, completing sphere center alignment and locking. The entire process involves no contact with the outer wall of the sphere and no bevel obstruction. The second positioning plate has a clearance groove to avoid the bevel welding area, preventing molten solder from adhering to the components and ensuring smooth retraction of the support mechanism. This device eliminates the indentations and localized deformation of the sphere blank caused by traditional external clamping, significantly reducing subsequent grinding and rust removal work, and preventing peeling and hollowing of the anti-corrosion coating from the source. It is particularly suitable for thin-walled hollow welded spheres, overcoming the pain points of thin-walled components being easily dented and deformed by rigid external clamping and the difficulty of stable clamping with conventional tooling. It aligns with the standard manufacturing process of steel structure welded spheres, which involves welding first and then applying overall anti-corrosion coating, filling the industry gap in internal support positioning technology without external wall contact or bevel obstruction. Attached Figure Description

[0016] Figure 1 A front view of a steel structure welded ball positioning device; Figure 2 A three-dimensional diagram of a steel structure welded ball positioning device; Figure 3 This is a structural schematic diagram of a welding ball positioning module in a steel structure welding ball positioning device. Figure 4 A schematic diagram of the moving cylinder of a steel structure welded ball positioning device; Figure 5 A schematic diagram of the installation structure of a steel structure welded ball positioning device telescopic equipment; Figure 6 A schematic diagram of the ball positioning mechanism of a steel structure welded ball positioning device; Figure 7 A schematic diagram of a positioning aid module for a steel structure welded ball positioning device; Figure 8 This is a schematic diagram of the structure of the second positioning plate of a steel structure welded ball positioning device.

[0017] In the diagram: 1-Welding base, 2-Welding ball positioning module, 201-First arc-shaped trajectory moving device, 202-First arc-shaped guide frame, 203-Moving cylinder, 204-Ball positioning mechanism, 2041-Positioning cylinder, 2042-First groove, 2043-Second groove, 2044-Third groove, 2045-First rotating rod, 2046-First positioning plate, 2047-Second rotating rod, 2048-Second positioning plate, 204... 9-Rotating shaft, 2050-Third rotating rod, 2051-Third positioning plate, 205-Arc-shaped positioning surface, 206-Arc-shaped electromagnet, 207-Rotating device, 208-Cylinder device, 209-Telescopic device, 3-Control device, 4-Auxiliary positioning module, 401-Second arc-shaped trajectory moving device, 402-Second arc-shaped guide frame, 403-Connecting rod, 404-Positioning disc, 405-Spherical sleeve, 406-Auxiliary support ball. Detailed Implementation

[0018] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 8 The present invention provides a technical solution: A steel structure welded ball positioning device includes a welding base 1, a welded ball positioning module 2, a control device 3, and an auxiliary positioning module 4; A welding ball positioning module 2 and an auxiliary positioning module 4 for positioning the welding ball are installed on the upper part of the welding base 1, and a control device 3 fixedly connected to the welding base 1 is also provided on one side of the welding ball positioning module 2. The welding ball positioning module 2 includes a first arc-shaped trajectory moving device 201, a first arc-shaped guide frame 202, and a moving cylinder 203. A cylinder device 208 is installed inside the moving end of the first arc-shaped trajectory moving device 201. A rotating device 207 is fixedly connected to the free end of the cylinder device 208. The moving cylinder 203 is fixedly connected to the free end of the rotating device 207. The outer side of the moving cylinder 203 is slidably connected to the first arc-shaped guide frame 202. One side of the first arc-shaped guide frame 202 is fixedly connected to the first arc-shaped trajectory moving device 201. The movable cylinder 203 is internally fixedly connected to a telescopic device 209. The free end of the telescopic device 209 is fixedly connected to a spherical positioning mechanism 204. The outer side of the spherical positioning mechanism 204 is slidably connected to the movable cylinder 203. The other end of the spherical positioning mechanism 204 is fixedly connected to an arc-shaped electromagnet 206.

[0019] A curved positioning surface 205 is provided on one side of the movable cylinder 203. The curved positioning surface 205 is a concave curved surface.

[0020] Current market processes for welding hollow spheres generally involve pre-fixing two hemispheres by aligning them with spot welding, then placing them in a clamping device for compression positioning. The positioning fixtures typically employ external wall clamping and support. Considering the standard construction procedures for pre-welding and rust removal / anti-corrosion coating in a welding sphere factory, this process has several shortcomings easily overlooked in the industry: the hemispheres are relatively heavy, requiring manual handling and alignment before spot welding, making alignment difficult; rigid external wall clamping easily creates indentations, scratches, and uneven deformation on the surface of the raw sphere, significantly increasing the workload for subsequent grinding, rust removal, and leveling; deep indentations easily accumulate dirt and impurities, leading to problems such as blistering and peeling of the anti-corrosion coating later. Furthermore, clamps and multi-point external wall support fixtures can obscure the welding bevel over a large area, preventing continuous welding. The obscured areas require removal of the fixtures for re-welding, creating welding joints and reducing the quality of the sphere's welded shape. This device integrates pre-positioning and precise positioning. Before commencing the pre-positioning of the welded spheres, positioning holes are first drilled at the end of one side of the welded hemisphere. The lower welded hemisphere is then placed into the auxiliary positioning module 4, supported by several auxiliary support balls 406 on the upper part of the positioning plate 404. The other half of the welded hemisphere with the hole is then beveled together. The welding sphere positioning module 2 is adjusted so that the spherical positioning mechanism 204 extends into the perforated welded hemisphere. The telescopic device 209 is then driven to expand the spherical positioning mechanism 204, achieving adaptive automatic centering and positioning of the upper and lower sets of welded hemispheres, facilitating pre-fixing of spot welding. After pre-fixing, the welding sphere positioning module 2 and the auxiliary positioning module 4 are driven synchronously to rotate the welded sphere 90°, facilitating continuous welding along the butt joint bevel.

[0021] Also includes the following: After the welding ball rotates 90°, its bevel is in a vertical position, which facilitates subsequent welding work. At the same time, the rotating device 207 on one side can drive the moving cylinder 203 to rotate, which can automatically adjust the welding ball. This setting does not have bevel obstruction, ensuring continuous welding operation. The auxiliary positioning module 4 on one side does not clamp the welding ball, but only serves to support the welding ball, which is not likely to cause excessive squeezing damage to the surface of the welding ball. When positioning the welding ball, the spherical positioning mechanism 204 extends into the welding ball and, together with the arc-shaped positioning surface 205 on one side of the moving cylinder 203, can achieve precise positioning of the welding ball.

[0022] Example 2: This example is an improvement upon Example 1. Please refer to [link / reference]. Figure 4 , Figure 5 , Figure 6 and Figure 7 Specifically, the spherical positioning mechanism 204 includes a positioning cylinder 2041 and an adjusting rod 2052. The adjusting rod 2052 is slidably connected inside the positioning cylinder 2041, and one end of the adjusting rod 2052 is fixedly connected to the free end of the telescopic device 209. The outer side of the positioning cylinder 2041 is provided with a first groove 2042, a second groove 2043, and a third groove 2044, which are evenly distributed. Inside the first groove 2042 is a first positioning plate 2046 rotatably connected to the positioning cylinder 2041. A first rotating rod 2045 is rotatably connected to one side of each first positioning plate 2046. The other end of each first rotating rod 2045 is rotatably connected to an adjusting rod 2052. Inside each of the second grooves 2043 is a second positioning plate 2048, one side of which is rotatably connected to the first positioning plate 2044. A second rotating rod 2047 and a rotating shaft 2049 are connected. One end of the second rotating rod 2047 is rotatably connected to the adjusting rod 2052, and the other end of the rotating shaft 2049 is rotatably connected to the positioning cylinder 2041. A third positioning plate 2051 is provided inside the third groove 2044. One end of the third positioning plate 2051 is rotatably connected to the positioning cylinder 2041, and the other end of the third positioning plate 2051 is rotatably connected to a third rotating rod 2050. The other end of the third rotating rod 2050 is rotatably connected to the adjusting rod 2052. An arc-shaped electromagnet 206 is installed on one side of the positioning cylinder 2041.

[0023] The third positioning plate 2051 is arranged in an arc shape on the side facing away from the positioning cylinder 2041, and the first positioning plate 2046 is also arranged in an arc shape on the side facing away from the positioning cylinder 2041.

[0024] The second positioning plate 2048 is arc-shaped on the side facing away from the positioning cylinder 2041, and the surface of the second positioning plate 2048 is also provided with a groove.

[0025] The auxiliary positioning module 4 includes a second arc-shaped trajectory mobile device 401, a second arc-shaped guide frame 402, and a connecting rod 403. The outer side of the second arc-shaped trajectory mobile device 401 is fixedly connected to the welding base 1. The connecting rod 403 is installed at the moving end of the second arc-shaped trajectory mobile device 401. The other end of the connecting rod 403 is fixedly connected to a positioning disk 404. The surface of the positioning disk 404 is equipped with evenly distributed spherical sleeves 405. An auxiliary support ball 406 is rolled inside the spherical sleeve 405.

[0026] A second arc-shaped guide frame 402 is fixedly connected to one side of the second arc-shaped trajectory mobile device 401, and the inner side of the second arc-shaped guide frame 402 is slidably connected to the connecting rod 403.

[0027] This device improves upon the traditional external clamping and fixing method by adopting an internal support and external expansion positioning structure. Multiple sets of first positioning plates 2046 and third positioning plates 2051 adhere to the inner wall of the sphere for support, completing sphere center alignment and locking. The entire process involves no contact with the outer wall of the sphere and no bevel obstruction. The second positioning plate 2048 has a clearance groove to avoid the bevel welding area, preventing molten solder from adhering to the components and ensuring smooth retraction of the support mechanism. This device eliminates the indentations and localized deformation of the sphere blank caused by traditional external clamping, significantly reducing subsequent grinding and rust removal work, and preventing peeling and hollowing of the anti-corrosion coating from the source. It is particularly suitable for thin-walled hollow welded spheres, overcoming the pain points of thin-walled components being easily dented and deformed by rigid external clamping and the difficulty of stable clamping with conventional tooling. It aligns with the standard manufacturing process of steel structure welded spheres, which involves welding first and then applying overall anti-corrosion coating, filling the industry gap in internal support positioning technology without external wall contact or bevel obstruction.

[0028] Also includes the following: Pre-fixing stage: The auxiliary positioning module 4 is activated, and the connecting rod 403 is driven by the second arc-shaped trajectory mobile device 401 to move along the arc-shaped trajectory, so that the positioning disk 404 at the end of the connecting rod 403 rotates to below the second arc-shaped guide frame 402, with the positioning disk 404 facing upwards; at the same time, the first arc-shaped trajectory mobile device 201 of the welding ball positioning module 2 drives the cylinder device 208 to move along the arc-shaped trajectory, driving the rotating device 207, the moving cylinder 203 and the spherical positioning mechanism 204 to rotate, so that the spherical positioning mechanism 204 is in a vertical state. The welding hemisphere is placed above the positioning disk 404, and is supported and limited by several auxiliary support balls 406 of different heights, so that the auxiliary support balls 406 can fully fit the bottom of the welding hemisphere; then the perforated welding hemisphere is stacked on top of it to complete the docking of the two sets of welding hemispheres. The cylinder device 208 is activated, driving the rotating device 207, the moving cylinder 203, and the spherical positioning mechanism 204 to feed forward. The spherical positioning mechanism 204 extends into the welded hemisphere through the upper hole. Subsequently, the telescopic device 209 is activated, driving the adjusting rod 2052 to move. The adjusting rod 205 slides inside the moving cylinder 203, driving the first rotating rod 2045, the second rotating rod 2047, and the third rotating rod 2050 to rotate, thereby causing the corresponding first positioning plate 2046, the second positioning plate 2048, and the third positioning plate 2051 to unfold. Multiple first positioning plates 2046, in conjunction with the arc-shaped positioning surface 205 at the end of the moving cylinder 203, fully fit against the inner wall of the upper welded hemisphere. Multiple third positioning plates 2051 unfold simultaneously, cooperating with the energized arc-shaped electromagnet 206 to attract the lower welded hemisphere and abut against its inner wall. Multiple second positioning plates 2048 extend simultaneously, providing support for the welding hemisphere's mating surface. This achieves internal support and positioning of the welded sphere, preventing external pressure from damaging the outer wall of the welded hemisphere, allowing workers to perform spot welding for pre-fixation.

[0029] Welding stage: After the pre-fixing operation is completed, the auxiliary positioning module 4 and the welding ball positioning module 2 are driven synchronously to rotate the welding ball by 90°, so that the butt joint bevel is in a vertical position; the rotating device 207 synchronously drives the moving cylinder 203 and the spherical positioning mechanism 204 to rotate together with the workpiece, which makes it convenient for the operator to carry out continuous welding on the butt joint bevel.

[0030] Recovery phase: The telescopic device 209 is reset, and the arc electromagnet 206 is de-energized to release the adsorption; the first rotating rod 2045, the second rotating rod 2047, and the third rotating rod 2050 rotate in the opposite direction, causing the first positioning plate 2046, the second positioning plate 2048, and the third positioning plate 2051 to retract and be stored in the first groove 2042, the second groove 2043, and the third groove 2044 respectively, so that the spherical positioning mechanism 204 can be smoothly separated from the welded hemisphere.

[0031] Furthermore, under the pre-fixed working condition, the first rotating rod 2045 and the first positioning plate 2046 overlap each other, ensuring that the first positioning plate 2046, the second positioning plate 2048, and the third positioning plate 2051 can respectively abut against the inner wall of the welded hemisphere to complete the support and positioning during the positioning operation. The surfaces of the first positioning plate 2046, the second positioning plate 2048, and the third positioning plate 2051 are all arc-shaped structures, which can fit against the inner wall of the welded sphere over a large area for positioning, ensuring positioning accuracy.

[0032] When the welding sphere is beveling, one end face of the welding sphere contacts the auxiliary support ball 406. The auxiliary support ball 406 can provide a certain support and ensure that the welding sphere can rotate smoothly. The second positioning plate 2048 has a groove on its surface, which can avoid the welding surface of the welding hemispherical bevel, prevent the welding liquid from coming into contact with the weld and causing solidification and adhesion, and prevent the subsequent equipment from being removed.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A steel structure welded ball positioning device, characterized in that: It includes a welding base (1), a welding ball positioning module (2), a control device (3), and an auxiliary positioning module (4); A welding ball positioning module (2) and an auxiliary positioning module (4) for positioning the welding ball are installed on the upper part of the welding base (1), and a control device (3) is fixedly connected to the welding base (1) on one side of the welding ball positioning module (2). The welding ball positioning module (2) includes a first arc-shaped trajectory mobile device (201), a first arc-shaped guide frame (202), and a moving cylinder (203). The moving end of the first arc-shaped trajectory mobile device (201) is equipped with a cylinder device (208). The free end of the cylinder device (208) is fixedly connected to a rotating device (207). The free end of the rotating device (207) is fixedly connected to the moving cylinder (203). The outer side of the moving cylinder (203) is slidably connected to the first arc-shaped guide frame (202). One side of the first arc-shaped guide frame (202) is fixedly connected to the first arc-shaped trajectory mobile device (201). The inside of the movable cylinder (203) is fixedly connected to a telescopic device (209), and the free end of the telescopic device (209) is fixedly connected to a spherical positioning mechanism (204). The outer side of the spherical positioning mechanism (204) is slidably connected to the movable cylinder (203), and the other end of the spherical positioning mechanism (204) is fixedly connected to an arc electromagnet (206). The spherical positioning mechanism (204) includes a positioning cylinder (2041) and an adjusting rod (2052). The adjusting rod (2052) is slidably connected inside the positioning cylinder (2041). One end of the adjusting rod (2052) is fixedly connected to the free end of the telescopic device (209). The outer side of the positioning cylinder (2041) is provided with a first groove (2042), a second groove (2043), and a third groove (2044) that are evenly distributed. The first groove (2042) is provided with a first positioning plate (2046) that is rotatably connected to the positioning cylinder (2041). A first rotating rod (2045) is rotatably connected to one side of the first positioning plate (2046). The other end of the first rotating rod (2045) is rotatably connected to the adjusting rod (2052). The second groove (2043) is provided with a second positioning plate (2048). One side of the second positioning plate (2048) is rotatably connected to the adjusting rod (2052). A second rotating rod (2047) and a rotating shaft (2049) are connected. One end of the second rotating rod (2047) is rotatably connected to the adjusting rod (2052), and the other end of the rotating shaft (2049) is rotatably connected to the positioning cylinder (2041). A third positioning plate (2051) is provided inside the third groove (2044). One end of the third positioning plate (2051) is rotatably connected to the positioning cylinder (2041), and the other end of the third positioning plate (2051) is rotatably connected to a third rotating rod (2050). The other end of the third rotating rod (2050) is rotatably connected to the adjusting rod (2052). An arc-shaped electromagnet (206) is installed on one side of the positioning cylinder (2041).

2. The steel structure welded ball positioning device according to claim 1, characterized in that: The side of the third positioning plate (2051) facing away from the positioning cylinder (2041) is arranged in an arc shape, and the side of the first positioning plate (2046) facing away from the positioning cylinder (2041) is also arranged in an arc shape.

3. The steel structure welded ball positioning device according to claim 1, characterized in that: A curved positioning surface (205) is provided on one side of the movable cylinder (203), and the curved positioning surface (205) is a concave curved surface.

4. A steel structure welded ball positioning device according to claim 1, characterized in that: The second positioning plate (2048) is arc-shaped on the side facing away from the positioning cylinder (2041), and the surface of the second positioning plate (2048) is also provided with grooves.

5. A steel structure welded ball positioning device according to claim 1, characterized in that: The auxiliary positioning module (4) includes a second arc-shaped trajectory mobile device (401), a second arc-shaped guide frame (402), and a connecting rod (403). The outer side of the second arc-shaped trajectory mobile device (401) is fixedly connected to the welding base (1). The moving end of the second arc-shaped trajectory mobile device (401) is equipped with a connecting rod (403). The other end of the connecting rod (403) is fixedly connected to a positioning disk (404). The surface of the positioning disk (404) is equipped with evenly distributed spherical sleeves (405). The inside of the spherical sleeves (405) is connected to an auxiliary support ball (406).

6. A steel structure welded ball positioning device according to claim 5, characterized in that: A second arc-shaped guide frame (402) is fixedly connected to one side of the second arc-shaped trajectory mobile device (401), and the inner side of the second arc-shaped guide frame (402) is slidably connected to the connecting rod (403).

Images