A welding device for steel structure construction and a mounting method

Abstract

The application provides a welding device for steel structure construction and a mounting method, and relates to the field of steel beam welding. The welding device for steel structure construction comprises a driving trolley, a first distance measuring device is installed on the driving trolley, a driving device, the driving device comprises a driving motor, a main gear and a mounting frame, the mounting frame is installed on the driving trolley through a mounting seat, the driving motor is installed on the mounting frame, and the main gear is installed on the output end of the driving motor. The welding device for steel structure construction provided by the application lifts the two ends of the arc toothed plate higher than the cross beam by lifting, and the positioning structures at the front end and the rear end of the driving trolley are lifted in sequence to be higher than the cross beam, so that the driving trolley can pass through the support beam in sequence, and the positioning structures at the front end or the rear end can be used for limiting in sequence when passing through, and the driving trolley can be stably moved along the cross beam.

Description

Technical Field

[0001] This invention relates to the field of steel beam welding, and more particularly to a welding device and installation method for steel structure construction. Background Technology

[0002] Welding is a core connection process in steel structure construction. For steel structure construction environments, such as the installation of steel structures in public buildings (e.g., stadiums, high-speed rail stations, and airport terminals), bridge steel structures, and industrial plants, high-altitude work is often involved. High-altitude steel structure construction typically includes welding of vertical and horizontal beams.

[0003] In the prior art, automatic welding can be used for the construction of high-altitude steel structures. In automatic welding, the welding equipment is equipped with an automatic moving device. For example, Chinese patent application CN118720564A, entitled "A Welding Device for Steel Structures in Building Construction and Its Welding Method", has a climbing mechanism installed on the steel beam that can drive the welding equipment to climb or move along the steel beam. However, in practice, some crossbeams are horizontally connected to multiple sets of steel beams on both sides, and the steel beams can obstruct the movement of the climbing mechanism. Currently, there is still room for improvement in how the climbing structure of the automatic welding equipment can move more stably to different welding positions when moving along the crossbeam to be welded.

[0004] Therefore, it is necessary to provide a new welding device and installation method for steel structure construction to solve the above-mentioned technical problems. Summary of the Invention

[0005] This invention provides a welding device for steel structure construction, which solves the technical problem that still has room for improvement in how to move automatic welding equipment more stably to different welding positions during high-altitude welding operations.

[0006] To solve the above-mentioned technical problems, the present invention provides a welding device for steel structure construction, comprising: a drive trolley, on which a first distance measuring device is installed;

[0007] A drive device, comprising a drive motor, a main gear, and a mounting bracket, wherein the mounting bracket is mounted on the drive trolley via a mounting seat, the drive motor is mounted on the mounting bracket, and the main gear is mounted on the output end of the drive motor;

[0008] An arc-tooth plate is slidably mounted on the mounting bracket, and the main gear meshes with the arc-tooth plate;

[0009] A welding structure, comprising a fixed base, a robotic arm, and a welding torch, wherein the robotic arm is mounted on the arc-tooth plate via the fixed base, and the welding torch is mounted on the output end of the robotic arm;

[0010] A lifting cylinder is mounted on the mounting base and is used to lift the arc tooth plate;

[0011] Two positioning devices are respectively installed at the front and rear ends of the driving trolley in the direction of travel. Each positioning device includes a rotating device and two positioning structures. The driving trolley is located between the two positioning structures. The rotating device is used to drive the two positioning structures to rotate in opposite directions.

[0012] Preferably, the positioning structure includes a connecting arm and a positioning wheel, with one end of the connecting arm mounted on the output end of the rotating device and the positioning wheel mounted on the other end of the connecting arm.

[0013] Preferably, the welding device for steel structure construction further includes a second ranging device, which is mounted on the connecting arm.

[0014] Preferably, the mounting frame includes a U-shaped frame and two support plates. The U-shaped frame is mounted on the drive trolley via the mounting base, and the two support plates are vertically slidably connected to the top two sides of the U-shaped frame.

[0015] The drive motor is mounted on the U-shaped frame, and the arc-tooth plate is slidably mounted between the two support plates.

[0016] Preferably, support rollers are installed on both sides of the drive trolley, and the support rollers are used to support the arc tooth plate.

[0017] Preferably, the mounting base includes a sliding frame, a mounting block, and a rotary motor. The sliding frame is mounted on the drive trolley, the mounting block is slidably mounted on the sliding frame, and the rotary motor is mounted on the mounting block.

[0018] The U-shaped frame is installed at the output end of the rotary motor, and the lifting cylinder is installed on the U-shaped frame via a fixing bracket;

[0019] The welding device for steel structure construction also includes a moving device, which is used to drive the mounting block to move along the extension direction of the sliding frame.

[0020] Preferably, the moving device includes an L-shaped frame, a lead screw, a nut, a driving component, a rotating component, and a driving arm. The L-shaped frame is installed on the side of the driving trolley, the lead screw is fixedly installed on the L-shaped frame, the nut is threadedly connected to the lead screw, the driving component is used to drive the nut to rotate, the rotating component is sleeved on the nut, and the driving arm is fixedly connected to the rotating component and the mounting block.

[0021] Preferably, the driving component includes a driven gear, which is sleeved and mounted on the nut;

[0022] When the driven gear is in the middle position of the lead screw, and the rotary motor drives the drive device to rotate 90 degrees, the main gear meshes with the driving member.

[0023] Preferably, the driving component further includes two elastic telescopic rods, the driven gear is sleeved on the nut and there is a preset distance between them, the two ends of the elastic telescopic rod are fixedly connected to the nut and the driven gear, and both sides of the driven gear are set as inclined surfaces.

[0024] To address the aforementioned technical problems, the present invention also provides an installation method for steel structure construction, comprising the following steps:

[0025] S1. Using the aforementioned steel structure construction welding device, pre-weld the connecting plate on the vertical beam, and pre-open mounting holes on the connecting plate and the horizontal beam;

[0026] S2. Install both ends of the crossbeam onto the connecting plate between the two vertical beams using bolts and nuts;

[0027] S3. Using the aforementioned steel structure construction welding device, weld the two ends of the horizontal beam to the corresponding vertical beam at their connection points.

[0028] Compared with related technologies, the welding device for steel structure construction provided by the present invention has the following advantages:

[0029] The welding device for steel structure construction can sequentially weld the two sides, top and bottom of the connection position between the horizontal beam and the vertical beam as needed. At this time, the middle position of the arc tooth plate corresponds to the main gear, and the two welding structures are symmetrically located on both sides of the horizontal beam. At this time, the two welding structures use the corresponding robotic arms to drive the welding gun to weld the connection position between the two sides of the horizontal beam and the vertical beam.

[0030] After the welding on both sides is completed, the drive motor drives the main gear to rotate. The main gear and the drive arc tooth plate rotate, so that the two welded structures are located above and below the crossbeam respectively. This allows welding to be performed at the connection between the top and bottom of the crossbeam and the vertical beam, enabling rapid welding of multiple positions of the crossbeam and the vertical beam.

[0031] Furthermore, by using the lifting and raising of the arc tooth plate to make its two ends higher than the crossbeam, the positioning structures at the front end (relative to the direction of travel) and the rear end of the drive trolley are raised in sequence to make them higher than the crossbeam, so that it passes through the support beam in sequence. When passing through, the positioning device located at the front end or the rear end can be used to limit the movement of the drive trolley along the crossbeam in sequence, so that the drive trolley can move stably. Attached Figure Description

[0032] Figure 1 A usage scenario diagram of the welding device for steel structure construction provided by the present invention;

[0033] Figure 2 A schematic diagram of the first embodiment of the welding device for steel structure construction provided by the present invention;

[0034] Figure 3 for Figure 1 The diagram shows a front view of the welding equipment used in steel structure construction, in its working state. Figure 3 (a) is a schematic diagram showing the two welded structures located on the left and right sides of the crossbeam. Figure 3 (b) is a schematic diagram showing the two welded structures located on the upper and lower sides of the crossbeam;

[0035] Figure 4 for Figure 3 The diagram shows the state in which the lifting cylinder raises the arc-tooth plate so that both ends are higher than the top of the crossbeam.

[0036] Figure 5 This is a schematic diagram illustrating the principle of the welding device for steel structure construction provided by the present invention, which moves along a crossbeam. Figure 5 (a) is a schematic diagram showing the state in which the two positioning structures at the front of the trolley rotate upwards above the crossbeam. Figure 5 (b) is a schematic diagram showing the state in which the two positioning structures at the rear of the trolley rotate upwards above the crossbeam. Figure 5 (c) is a schematic diagram of the trolley driving over the support beam;

[0037] Figure 6 for Figure 2 The diagram shows the transmission device connecting two positioning structures.

[0038] Figure 7 A schematic diagram of the second embodiment of the welding device for steel structure construction provided by the present invention;

[0039] Figure 8 for Figure 7 A schematic diagram of the welding device used for steel structure construction from another perspective;

[0040] Figure 9 This is a top view of the welding device for steel structure construction provided by the present invention in its working state, wherein... Figure 9 (a) is a schematic diagram showing two welded structures located on both sides of the crossbeam. Figure 9 (b) is a schematic diagram showing two welded structures located on both sides of the support beam. Figure 9 (c) is a schematic diagram showing the arc-tooth plate and two welded structures offset from the drive trolley;

[0041] Figure 10 A schematic diagram illustrating the meshing state of the primary gear and the driven gear provided by the present invention, wherein, Figure 10 (a) is a schematic diagram showing the state where the master gear and the driven gear are set perpendicularly. Figure 10(b) is a schematic diagram of the master gear rotating 90 degrees and meshing with the driven gear;

[0042] Figure 11 for Figure 10 The diagram shows the structure of the drive component;

[0043] Figure 12 for Figure 10 The image shows a front view of the gear meshing with the main gear.

[0044] Numbering on the map:

[0045] 1. Drive trolley; 101. First ranging device; 102. Roller structure;

[0046] 2. Mounting base; 21. Sliding bracket; 22. Mounting block; 23. Rotary motor;

[0047] 3. Support rollers;

[0048] 4. Drive unit; 41. Drive motor; 42. Main gear; 43. Mounting bracket;

[0049] 431. U-shaped frame; 432. Support plate; 433. Slide bar;

[0050] 5. Arc-tooth plate;

[0051] 6. Welding structure; 61. Fixing base; 62. Robotic arm; 63. Welding torch;

[0052] 7. Positioning device; 71. Rotating device; 72. Positioning structure; 721. Connecting arm; 722. Positioning wheel; 711. Rotating motor; 712. Transmission device;

[0053] 8. Moving device; 81. L-shaped frame; 82. Lead screw; 83. Nut; 84. Driven component; 85. Rotating component; 86. Driven arm; 841. Driven gear; 842. Elastic telescopic rod;

[0054] 9. Lifting cylinder; 91. Fixing frame;

[0055] 10. Second ranging device; 20. Horizontal beam; 30. Vertical beam; 40. Support beam;

[0056] 7121. Connecting shaft; 7122. Synchronous pulley structure; 7123. Transmission gear; 7124. Mounting box. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0058] This invention provides a welding device for steel structure construction.

[0059] First embodiment.

[0060] Please refer to the following: Figure 1 and Figure 2 In the first embodiment of the present invention, the welding device for steel structure construction includes: a drive trolley 1, on which a first ranging device 101 is installed;

[0061] The drive device 4 includes a drive motor 41, a main gear 42 and a mounting bracket 43. The mounting bracket 43 is mounted on the drive trolley 1 via a mounting seat 2. The drive motor 41 is mounted on the mounting bracket 43 and the main gear 42 is mounted on the output end of the drive motor 41.

[0062] Arc tooth plate 5, which is slidably mounted on the mounting bracket 43, and the main gear 42 meshes with the arc tooth plate 5;

[0063] Welding structure 6 includes a fixed base 61, a robotic arm 62 and a welding torch 63. The robotic arm 62 is mounted on the arc tooth plate 5 via the fixed base 61, and the welding torch 63 is mounted on the output end of the robotic arm 62.

[0064] Lifting cylinder 9, which is mounted on the mounting base 2, is used to lift the arc tooth plate 5;

[0065] Two positioning devices 7 are respectively installed at the front and rear ends of the driving trolley 1 in the direction of travel. Each positioning device 7 includes a rotating device 71 and two positioning structures 72. The driving trolley 1 is located between the two positioning structures 72. The rotating device 71 is used to drive the two positioning structures 72 to rotate in opposite directions.

[0066] The first ranging device 101 is a laser ranging device or an ultrasonic ranging device.

[0067] In this embodiment, there can be two first ranging devices 101. The two first ranging devices 101 are respectively installed at the front and rear ends of the driving vehicle 1 in the direction of travel, and the first ranging devices 101 are located above the positioning device 7.

[0068] It is understood that in other embodiments, the number of the first ranging devices 101 may also be one, with one first ranging device 101 rotatably mounted on the top of the drive vehicle 1.

[0069] In this embodiment, there are two welding structures 6, which are installed at both ends of the arc-tooth plate 5. In other embodiments, one structure can also be installed at one end of the arc-tooth plate 5, and the multiple surfaces of the steel beam can be welded by adjusting the position of the arc-tooth plate 5 and the travel of the robotic arm 62 (and the rotation adjustment of the subsequently installed rotary motor 23).

[0070] Please see Figure 1 and Figure 5 The two ends of the crossbeam 20 are installed between the two vertical beams 30. During installation, the crossbeam 20 is aligned with the installation position of the vertical beams 30 using auxiliary equipment such as a crane. Then, the crossbeam 20 is connected to the vertical beams 30 by connecting plates, bolts and nuts. Then, the connection between the crossbeam 20 and the vertical beams 30 is welded by the welding device used for steel structure construction, thereby further improving the stability of the connection. The multiple support beams 40 are similarly installed on both sides of the crossbeam 20.

[0071] Please refer to the following: Figure 1 and Figure 2 When using this equipment to weld horizontally set steel beams, the roller structure 102 of the drive trolley 1 is placed on the crossbeam 20 to be welded, wherein the two positioning structures 72 at each end of the drive trolley 1 are in contact with the two sides of the crossbeam 20 to limit the drive trolley 1.

[0072] The drive trolley 1 uses the first distance measuring device 101 and the vertical beam 30 to measure distance. The drive trolley 1 determines its distance from the vertical beam 30 by moving. As needed, welding can be performed sequentially on both sides, top, and bottom of the connection position between the crossbeam 20 and the vertical beam 30. Figure 3 As shown in (a), the middle position of the arc tooth plate 5 corresponds to the main gear 42, and the two welding structures 6 are symmetrically located on both sides of the crossbeam 20. At this time, the two welding structures 6 use the corresponding robotic arms 62 to drive the welding gun 63 to perform welding treatment on the connection positions of the crossbeam 20 and the vertical beam 30.

[0073] After welding on both sides is completed, the drive motor 41 drives the main gear 42 to rotate, and the main gear 42 rotates in conjunction with the drive arc tooth plate 5, as shown. Figure 3 As shown in (b), the two welding structures 6 are positioned above and below the crossbeam 20, respectively, so that the top and bottom of the crossbeam 20 can be welded to the connection between the crossbeam 20 and the vertical beam 30, thereby enabling rapid welding of the crossbeam 20 and the vertical beam 30 at multiple locations.

[0074] When welding is completed at one end of the crossbeam 20 and welding is performed at the other end, the drive trolley 1 moves toward the other end of the crossbeam 20, while the positioning structure 72 moves along the side of the crossbeam 20, so that the drive trolley 1 can travel stably.

[0075] Please refer to the following: Figure 4 and Figure 5 When it is necessary to drive over the support beam 40 that is perpendicularly connected to the crossbeam 20, the main gear 42 is driven by the drive motor 41 to move the arc tooth plate 5 to the middle position, and the lifting cylinder 9 is used to lift the arc tooth plate 5 so that its two ends are higher than the top surface of the crossbeam 20.

[0076] Since two positioning structures 72 are provided at both the front and rear ends of the driving trolley 1, when the driving trolley 1 is moving, the two positioning structures 72 located at the front end (relative to the direction of travel) are first rotated upward by the rotating device 71, so that the positioning structures 72 are higher than the top of the crossbeam 20. Figure 4 and Figure 5 As shown in (a), at this time, the two positioning structures 72 at the other end still act on the two sides of the crossbeam 20 to ensure that the drive trolley 1 can move stably. After the two positioning structures 72 at the front end move past the support beam 40, the two positioning structures 72 at the front end are rotated downwards so that they contact the two sides of the crossbeam 20 to limit the drive trolley 1. Similarly, the two positioning structures 72 at the rear end are raised upwards above the top surface of the crossbeam 20, as shown in (a). Figure 5 As shown in (b), after the two rear positioning structures 72 move past the support beam 40, the corresponding rotating device 71 drives the two rear positioning structures 72 to rotate towards the crossbeam 20, interacting with the crossbeam 20 to limit the movement of the drive trolley 1, as shown in (b). Figure 5 As shown in (c) in the figure.

[0077] By using the lifting and raising mechanism to raise the arc tooth plate 5 so that both ends are higher than the crossbeam 20, and by sequentially raising the positioning structure 72 at the front end (relative to the direction of travel) and the rear end of the drive trolley 1 so that it is higher than the crossbeam 20, the drive trolley 1 can pass through the support beam 40 in sequence. During the passage, the positioning device 7 located at the front end or the rear end can be used to limit the movement of the drive trolley 1 along the crossbeam 20.

[0078] As an optional embodiment, the lifting cylinder 9 is slidably connected to the arc tooth plate 5, and an installation sleeve is slidably fitted on the arc tooth plate 5. The output end of the lifting cylinder 9 is rotatably connected to the bottom of the installation sleeve. The lifting cylinder 9 pushes the installation sleeve to drive the arc tooth plate 5 to move upward. A protrusion is provided at the bottom of the inner wall of the installation sleeve. When the lifting cylinder 9 lifts the arc tooth plate 5, it first lifts the installation sleeve so that the protrusion is embedded in the tooth groove of the arc tooth plate 5, and then drives the arc tooth plate 5 to move upward. The protrusion is embedded in the tooth groove to limit the arc tooth plate 5 and ensure the stability of the lifting.

[0079] As another optional embodiment, the output end of the lifting cylinder 9 is not connected to the arc tooth plate 5, and the output end of the lifting cylinder 9 is located below the arc tooth plate 5; for example Figure 3 In state (a), the lifting cylinder 9 raises the arc tooth plate 5. Preferably, a U-shaped sleeve is installed at the output end of the lifting cylinder 9, and corresponding insertion holes are opened on both sides of the arc tooth plate 5 and above the U-shaped sleeve. When lifting, the U-shaped sleeve is inserted into the insertion holes and the arc tooth plate 5 is raised to ensure the stability of the lifting. Similarly, insertion holes are opened at both ends of the arc tooth plate 5 so that the lifting cylinder 9 can work with both ends of the arc tooth plate 5 to raise the arc tooth plate 5.

[0080] In this embodiment, the welding device for steel structure construction may also include a remote control screen, a control module is provided on the drive trolley 1, the control module is connected to the remote control screen through a communication module, the first ranging device 101 is connected to the input end of the control module, and the roller structure 102, mechanical arm 62, lifting cylinder 9, drive motor 41, positioning device 7, etc. of the drive trolley 1 are connected to the output end of the control module.

[0081] The robotic arm 62 controls the welding trajectory of the welding torch 63. Based on the model of the crossbeam 20, the vertical beam 30, etc., and the welding position, the robotic arm 62 controls the running trajectory through a preset program to drive the welding torch 63 to complete the welding work.

[0082] Preferably, a laser sensor and a vision camera can be installed at the output end of the robotic arm 62 to further improve the welding quality by integrating the welding process package with image recognition technology.

[0083] Staff can observe the welding process through a remote control screen and manually control the entire welding device.

[0084] In this embodiment, the robotic arm 62 includes at least two telescopic arms and multiple servo motors. A servo motor 1 is mounted on a fixed base 61. A telescopic arm 1 is mounted on the output end of the servo motor 1, and a U-shaped frame is mounted on the output end of the telescopic arm 1. A telescopic arm 2 is rotatably mounted inside the U-shaped frame via a fixed block. A servo motor 2 is mounted on the U-shaped frame to drive the telescopic arm 2 to rotate. A servo motor 3 is mounted on the output end of the telescopic arm 2. An assembly frame is mounted on the output end of the servo motor 3. A servo motor 4 is mounted on one side of the assembly frame. An assembly plate is rotatably mounted inside the assembly frame. The servo motor 4 drives the assembly plate to rotate. A servo motor 5 is mounted on the assembly plate. A welding torch 63 is mounted on the output end of the servo motor 5 via a mounting structure.

[0085] This enables the welding torch 63 to move within a certain stroke and allows for multi-angle adjustment of the welding torch 63's angle.

[0086] The telescopic arm and servo motor can be added or adjusted according to specific usage requirements.

[0087] Please refer to it again. Figure 2 In this embodiment, the positioning structure 72 includes a connecting arm 721 and a positioning wheel 722. One end of the connecting arm 721 is installed at the output end of the rotating device 71, and the positioning wheel 722 is installed at the other end of the connecting arm 721.

[0088] The positioning wheel 722 is rotated by the rotating device 71 to make it abut against or only contact the side of the crossbeam 20, thereby limiting the movement of the drive trolley 1 in the horizontal direction and preventing the drive trolley 1 from deviating from the crossbeam 20.

[0089] When the support beam 40 on the crossbeam 20 obstructs the movement of the drive trolley 1, the rotating device 71 drives the two connecting arms 721 to rotate upward, so that the positioning wheel 722 is higher than the top surface of the crossbeam 20 and is not blocked by the support beam 40.

[0090] The circumferential side of the positioning wheel 722 can be made to contact the side of the crossbeam 20 by adjusting the installation angle between the positioning wheel 722 and the connecting arm 721.

[0091] As a preferred embodiment, the positioning structure 72 may further include an electric push cylinder, which is installed at the other end of the connecting arm 721, and the positioning wheel 722 is installed at the output end of the electric push cylinder.

[0092] During the welding process, the connecting arm 721 remains parallel to the crossbeam 20, and the electric push cylinder pushes the positioning wheel 722 to press against the crossbeam 20, limiting the drive trolley 1 and improving the stability of the welding.

[0093] When the drive trolley 1 needs to move, the electric push cylinder releases the positioning wheel 722 so that it contacts the side of the crossbeam 20 but does not press against it.

[0094] As an optional embodiment, the rotating device 71 includes two rotating motors 711, which are symmetrically mounted at the ends of the driving trolley 1. The corresponding two connecting arms 721 are respectively mounted at the output ends of the two rotating motors 711, and the two rotating motors 711 are used to drive the two connecting arms 721 to rotate.

[0095] Please refer to the following: Figure 2 and Figure 6As another optional embodiment, the rotating device 71 includes a rotating motor 711 and a transmission device 712. The transmission device 712 includes a synchronous pulley structure 7122, three connecting shafts 7121, two transmission gears 7123, and a mounting box 7124. The mounting boxes 7124 in the two rotating devices 71 are correspondingly embedded at both ends of the driving trolley 1. The three connecting shafts 7121 are rotatably mounted in the mounting box 7124 at intervals. The two transmission gears 7123 are respectively mounted on the two connecting shafts 7121 at one end and the middle, and the two transmission gears 7123 mesh. The synchronous pulley structure 7122 drives the connecting shaft 7121 at the other end and the middle. The rotating motor 711 drives one of the connecting shafts 7121 to rotate.

[0096] The two connecting arms 721 are mounted on the two connecting shafts 7121 on the outermost side. By setting the two transmission gears 7123, the two connecting arms 721 can rotate in opposite directions. The synchronous pulley structure 7122 is two synchronous pulleys and a synchronous belt.

[0097] Please refer to it again. Figure 2 As a preferred embodiment, the welding device for steel structure construction further includes a second ranging device 10, which is mounted on the connecting arm 721.

[0098] By installing a second ranging device 10 on each connecting arm 721, the distance of the support beam 40 can be detected using the second ranging device 10, which can further accurately drive the movement distance of the trolley 1.

[0099] The second ranging device 10 is a laser ranging device or an ultrasonic ranging device.

[0100] As an optional embodiment, the mounting bracket 43 is a rectangular frame with an opening at the top. Arc-shaped sliders are provided on both sides of the opening at the top of the mounting bracket 43. Arc-shaped grooves are provided on both sides of the corresponding arc tooth plate 5. The arc-shaped grooves and the arc-shaped sliders are assembled to form a sliding connection. The teeth correspond to the opening, which facilitates meshing with the main gear 42.

[0101] As another optional embodiment, the mounting frame 43 includes a U-shaped frame 431 and two support plates 432. The U-shaped frame 431 is mounted on the drive trolley 1 via the mounting base 2, and the two support plates 432 are vertically slidably connected to the top two sides of the U-shaped frame 431.

[0102] The drive motor 41 is mounted on the U-shaped frame 431, and the arc tooth plate 5 is slidably mounted between the two support plates 432.

[0103] Arc-shaped grooves are provided on both sides of the arc-shaped tooth plate 5, and arc-shaped sliders are provided between the two support plates 432. The arc-shaped sliders slide into the arc-shaped grooves to form a sliding assembly, thereby supporting the arc-shaped tooth plate 5.

[0104] Furthermore, the support plate 432 and the U-shaped frame 431 are vertically slidably connected. When the lifting cylinder 9 lifts the arc tooth plate 5, the support plate 432 slides upward along the U-shaped frame 431, thereby providing better support for the arc tooth plate 5.

[0105] Preferably, the output end of the lifting cylinder 9 is located below the arc tooth plate 5 and may not be connected to the arc tooth plate 5. A horizontal part is provided on the inner side of the arc tooth plate 5 and on both sides of the teeth. When the middle of the arc tooth plate 5 corresponds to the main gear 42, the horizontal part is aligned with the output end of the lifting cylinder 9. The output end of the lifting cylinder 9 is provided with a horizontal part to facilitate lifting the arc tooth plate 5.

[0106] Please see Figure 2 and Figure 4 Multiple sliding rods 433 are installed at the bottom of the support plate 432. The sliding rods 433 pass through the U-shaped frame 431, and the support plate 432 is sleeved on the sliding rods 433 to form a sliding assembly.

[0107] Please refer to it again. Figure 1 In a preferred embodiment, support rollers 3 are installed on both sides of the drive trolley 1, and the support rollers 3 are used to support the arc tooth plate 5.

[0108] By setting support rollers 3, the two ends of the arc tooth plate 5 can be supported, thereby improving the stability of the arc tooth plate 5 in use.

[0109] Furthermore, support rollers 3 (not shown in the figure) can also be set at the front and rear ends of the drive trolley 1 to support the arc tooth plate 5 after it rotates 90 degrees.

[0110] Among them, the lifting cylinder 9 is a pneumatic cylinder, a hydraulic cylinder, or an electric push rod.

[0111] In this embodiment, the mounting base 2 consists of an assembly block and a connecting column. The assembly block is mounted on the drive trolley 1, and the connecting column connects the assembly block and the mounting frame 43. The lifting cylinder 9 is directly mounted on the assembly block.

[0112] Second embodiment.

[0113] Please refer to the following: Figure 7 and Figure 8Based on the welding device for steel structure construction provided in the first embodiment, the welding device for steel structure construction provided in the second embodiment differs from the first embodiment in that the mounting base 2 includes a sliding frame 21, a mounting block 22 and a rotary motor 23. The sliding frame 21 is mounted on the drive trolley 1, the mounting block 22 is slidably mounted on the sliding frame 21, and the rotary motor 23 is mounted on the mounting block 22.

[0114] The U-shaped frame 431 is installed at the output end of the rotary motor 23, and the lifting cylinder 9 is installed on the U-shaped frame 431 through the fixing frame 91;

[0115] The welding device for steel structure construction also includes a moving device 8, which is used to drive the mounting block 22 to move along the extension direction of the sliding frame 21.

[0116] Please refer to the following: Figure 4 , Figure 9 (b) and Figure 9 In section (c), by setting up a rotary motor 23 and a moving device 8, when it is necessary to weld the crossbeam 20 and the support beam 40, the arc tooth plate 5 can be raised by the lifting cylinder 9 so that its two ends are higher than the crossbeam 20; at this time, the rotary motor 23 rotates the drive device 4 and drives the arc tooth plate 5 to rotate ninety degrees, and then the lifting cylinder 9, together with the moving device 8 and the robotic arm 62, adjusts the position of the welding gun 63 to weld the two sides of the support beam 40 to the position where they are connected to the crossbeam 20.

[0117] When welding is required at the connection points between the top and bottom of the support beam 40 and the crossbeam 20, the moving device 8 adjusts the arc-tooth plate 5 to offset it from the crossbeam 20 and position it on one side of the drive trolley 1, such as... Figure 9 In the middle (c), similarly, the drive device 4 drives the arc tooth plate 5 to rotate 90 degrees, so that it is as... Figure 3 The state in (b) is applied to the support beam 40, and the welding gun 63 driven by the robotic arm 62 is used to weld the top and bottom of the support beam 40 at the positions where it connects with the crossbeam 20.

[0118] This allows for welding of multiple surfaces of the support beam 40.

[0119] When the top welding position of the support beam 40 is below the moving device 8 and the sliding frame 21, since the moving device 8 and the sliding frame 21 cover the top of the support beam 40, when welding is performed on the top of the support beam 40, as shown in the example... Figure 9 In state (a), the trolley 1 is driven to move close to the support beam 40 without obstructing the top of the support beam 40, and then the robotic arm 62 is used to weld the position where the top of the support beam 40 is connected to the crossbeam 20.

[0120] The sliding frame 21 may include multiple support rods, which are preferably installed between the supports of the two support rollers 3, and the mounting block 22 is sleeved on the support rods to form a sliding connection. Alternatively, supports may be set separately on both sides of the drive trolley 1 to support and connect the support rods.

[0121] As an optional embodiment, the mobile device 8 adopts a conveyor belt device, which is installed on the drive trolley 1. The conveyor belt in the conveyor belt device is connected to the mounting block 22 through a connector.

[0122] Please see Figure 8 As another optional embodiment, the moving device 8 includes an L-shaped frame 81, a lead screw 82, a nut 83, a driving member 84, a rotating member 85, and a driving arm 86. The L-shaped frame 81 is installed on the side of the driving trolley 1, the lead screw 82 is fixedly installed on the L-shaped frame 81, the nut 83 is threadedly connected to the lead screw 82, the driving member 84 is used to drive the nut 83 to rotate, the rotating member 85 is sleeved on the nut 83, and the driving arm 86 is fixedly connected to the rotating member 85 and the mounting block 22.

[0123] When the drive mounting block 22 moves, thereby driving the drive device 4, the arc tooth plate 5 and the welding structure 6 to move, the drive component 84 drives the nut 83 to rotate, the nut 83 moves along the screw 82, and the nut 83 drives the mounting block 22 to move along the sliding frame 21 through the drive arm 86, thereby realizing the function of adjusting the position of the arc tooth plate 5 and the welding structure 6.

[0124] Preferably, there are two L-shaped frames 81, which are symmetrically installed on both sides of the drive trolley 1, and the lead screw 82 is installed between the two L-shaped frames 81.

[0125] As an optional embodiment, the rotating component 85 is a bearing, and the inner ring of the rotating component 85 (bearing) is sleeved and fixed on the nut 83. One end of the driving arm 86 is connected to the outer ring of the rotating component 85 (bearing), and the other end is connected to the mounting block 22, so that the driving arm 86 does not need to rotate when the nut 83 rotates.

[0126] As another optional embodiment, the rotating member 85 includes an annular portion and a rotating sleeve. The annular portion is fitted and fixed on the nut 83, and the rotating sleeve is fitted on the annular portion to form a rotatable connection, thereby driving the arm 86 to connect the rotating sleeve and the mounting block 22.

[0127] Please refer to the following: Figure 8 and Figure 10 As an optional embodiment, the driving member 84 includes a driven gear 841, which is sleeved and mounted on the nut 83;

[0128] When the driven gear 841 is located in the middle position of the lead screw 82, and the rotary motor 23 drives the drive device 4 to rotate 90 degrees, the main gear 42 meshes with the drive member 84.

[0129] When welding is required on the bottom of the support beam 40, the middle position of the arc-tooth plate 5 meshes with the main gear 42, and the nut 83 is located in the middle position of the lead screw 82, that is, the driven gear 841 is located in the middle of the lead screw 82. Then, the lifting cylinder 9 raises the arc-tooth plate 5 so that both ends are higher than the crossbeam 20 and the L-shaped frame 81. At this time, the arc-tooth plate 5 separates from the driven gear 841. Then, the rotary motor 23 drives the mounting block 22 to rotate 90 degrees. The mounting block 22 drives the arc-tooth plate 5 to rotate 90 degrees through the drive device 4. At this time, the driven gear 841 in the drive device 4 rotates 90 degrees and meshes with the main gear 42. Figure 10 (a) and Figure 10 In (b), the subsequent rotary motor 23 drives the slave gear 841 to rotate through the main gear 42, thereby driving the nut 83 to rotate. The nut 83 moves along the lead screw 82, and the nut 83 drives the mounting block 22 to move through the drive arm 86.

[0130] Thus, in one state, the drive device 4 is used to drive the arc tooth plate 5 to rotate and adjust the position of the welding structure 6. While the rotary motor 23 is rotating the arc tooth plate 5 toward the support beam 40, the drive device 4 is switched to another state to drive the moving device 8 to adjust the arc tooth plate 5 to the target position so that it can be fitted onto the support beam 40, which facilitates the welding of the support beam 40.

[0131] When the driven gear 841 meshes with the main gear 42, there is a gap between the tooth tip of the main gear 42 and the tooth groove on the driven gear 841, so that the main gear 42 can mesh with the driven gear 841 when it rotates ninety degrees.

[0132] Among them, in such Figure 9 In state (c), when the drive device 4 rotates the arc tooth plate 5 so that the two welded structures 6 are located on the upper and lower sides of the support beam 40, the rotary motor 23 first rotates the drive device 4 and the arc tooth plate 5 to a preset angle, so that the main gear 42 and the driven gear 841 are separated. Then, the drive device 4 drives the arc tooth plate 5 to rotate 90 degrees to avoid simultaneously driving the driven gear 841 to rotate. Then, the rotary motor 23, in conjunction with the lifting cylinder 9, adjusts the angle of the arc tooth plate 5, that is, adjusts the angle of the two welded structures 6.

[0133] In this embodiment, the number of driving arms 86 and rotating parts 85 is preferably two. Each driving arm 86 is arranged in a one-to-one correspondence with each rotating part 85. The two rotating parts 85 are mounted on the nuts 83 and located on both sides of the driven gear 841.

[0134] As an optional embodiment, the drive component 84 includes a drive motor, a drive gear, and a connecting frame. The connecting frame is mounted on the mounting block 22 or the U-shaped frame 431, the drive motor is mounted on the connecting frame, and the drive gear is mounted on the output end of the drive motor and meshes with the driven gear 841.

[0135] In this embodiment, the driving element 84 may consist only of the driven gear 841.

[0136] Third embodiment.

[0137] Please refer to the following: Figure 11 and Figure 12 Based on the welding device for steel structure construction provided in the second embodiment, the welding device for steel structure construction provided in the third embodiment differs from the second embodiment in that the driving component 84 further includes two elastic telescopic rods 842, the driven gear 841 is sleeved on the nut 83 and a preset distance is left between it and the nut 83, the two ends of the elastic telescopic rod 842 are fixedly connected to the nut 83 and the driven gear 841, and both sides of the driven gear 841 are set as inclined surfaces.

[0138] By setting both sides of the driven gear 841 as inclined surfaces and connecting it to the nut 83 using the elastic telescopic rod 842, when the driven gear 841 moves to the middle position of the lead screw 82, the middle position of the arc tooth plate 5 meshes with the main gear 42. Subsequently, when the rotating motor 23 rotates the drive device 4 to drive the arc tooth plate 5 to rotate 90 degrees, if the nut 83 experiences a slight axial movement due to vibration or other reasons, causing a slight deflection of the driven gear 841 and a slight deviation between the tooth groove of the driven gear 841 and the tooth of the main gear 42, the driven gear 841 can compress the elastic telescopic rod 842 by acting on the inclined surface on one side of the main gear 42 and the driven gear 841. After the driven gear 841 and the main gear 42 are aligned, the drive motor 41 drives the main gear 42 to rotate. When the tooth of the main gear 42 is aligned with the tooth groove of the driven gear 841, the driven gear 841 is pushed to mesh with the main gear 42 by the action of the elastic telescopic rod 842, thus better ensuring the meshing of the main gear 42 and the driven gear 841.

[0139] The elastic telescopic rod 842 includes a mounting cylinder, a piston rod, a piston block, and two springs. The piston block is slidably disposed inside the mounting cylinder. The two springs are installed inside the mounting cylinder and located on both sides of the piston block. One end of the piston rod passes through the mounting cylinder and is connected to the piston block, while the other end is rotatably connected to the driven gear 841. The mounting cylinder is connected to the nut 83.

[0140] When the elastic telescopic rod 842 is not installed, it is directly fixed to the nut 83 from the gear 841.

[0141] The working principle of the welding device for steel structure construction provided in this embodiment is as follows:

[0142] When using this equipment to weld horizontally positioned steel beams, the roller structure 102 of the drive trolley 1 is placed on the crossbeam 20 to be welded. The two positioning structures 72 at each end of the drive trolley 1 interact with the sides of the crossbeam 20 to limit the movement of the drive trolley 1. Figure 3 The drive trolley 1 uses the first distance measuring device 101 and the vertical beam 30 to measure the distance, and the drive trolley 1 determines the distance to the vertical beam 30 by moving.

[0143] As needed, welding can be performed sequentially on both sides, top, and bottom of the connection point between the horizontal beam 20 and the vertical beam 30, such as... Figure 3 In (a), the middle position of the arc tooth plate 5 corresponds to the main gear 42, and the two welding structures 6 are symmetrically located on both sides of the crossbeam 20. At this time, the two welding structures 6 use the corresponding robotic arms 62 to drive the welding gun 63 to weld the connection positions of the crossbeam 20 and the vertical beam 30.

[0144] After welding on both sides is completed, the drive motor 41 drives the main gear 42 to rotate, and the main gear 42 rotates in conjunction with the drive arc tooth plate 5, as shown. Figure 3 In section (b), the two welding structures 6 are positioned above and below the crossbeam 20, respectively, so that the top and bottom of the crossbeam 20 can be welded to the connection between the vertical beam 30 and the vertical beam 20, thereby enabling rapid welding of multiple positions of the crossbeam 20 and the vertical beam 30.

[0145] When welding is completed at one end of the crossbeam 20 and welding is to be done at the other end, the drive trolley 1 moves toward the other end of the crossbeam 20, while the positioning structure 72 moves along the side of the crossbeam 20, allowing the drive trolley 1 to travel stably. When it is necessary to travel over the support beam 40 that is perpendicularly connected to the crossbeam 20, please refer to [the relevant documentation]. Figure 4 First, the main gear 42 is driven by the drive motor 41 to move the arc tooth plate 5 to the middle position, and the lifting cylinder 9 lifts the arc tooth plate 5 so that its two ends are higher than the top surface of the crossbeam 20.

[0146] Please refer to the following: Figure 4 and Figure 5 Since two positioning structures 72 are provided at both the front and rear ends of the driving trolley 1, when the driving trolley 1 is moving, the two positioning structures 72 located at the front end (relative to the direction of travel) are first rotated upward by the rotating device 71, so that the positioning structures 72 are higher than the top of the crossbeam 20. Figure 4 and Figure 5In (a), at this time, the two positioning structures 72 at the other end still act on the two sides of the crossbeam 20 to ensure that the drive trolley 1 can move stably. After the two positioning structures 72 at the front end move past the support beam 40, the two positioning structures 72 at the front end are rotated downwards so that they contact the two sides of the crossbeam 20 to limit the drive trolley 1. Similarly, the two positioning structures 72 at the rear end are raised upwards above the top surface of the crossbeam 20, such as... Figure 5 In section (b), after the two rear positioning structures 72 move past the support beam 40, the corresponding rotating device 71 drives the two rear positioning structures 72 to rotate towards the crossbeam 20, interacting with the crossbeam 20 to limit the movement of the drive trolley 1, as shown. Figure 5 (c)

[0147] This allows the trolley 1 to move stably along the crossbeam 20 and to pass stably through the vertically mounted support beam 40 on the crossbeam 20.

[0148] Please refer to the following: Figure 4 as well as Figure 9 (b) and Figure 9 In the middle (c), when it is necessary to weld the crossbeam 20 and the support beam 40, the arc tooth plate 5 can be raised by the lifting cylinder 9 so that its two ends are higher than the crossbeam 20. At this time, the drive device 4 can be rotated by the rotary motor 23 and the arc tooth plate 5 can be rotated ninety degrees. Then, the position of the welding gun 63 can be adjusted by the lifting cylinder 9 in conjunction with the moving device 8 and the robotic arm 62 to weld the two sides of the support beam 40 to the position where they are connected to the crossbeam 20.

[0149] When welding is required at the connection points between the top and bottom of the support beam 40 and the crossbeam 20, the moving device 8 adjusts the arc-tooth plate 5 to offset it from the crossbeam 20 and position it on one side of the drive trolley 1, such as... Figure 9 In the middle (c), similarly, the drive device 4 drives the arc tooth plate 5 to rotate 90 degrees, so that it is as... Figure 3 The state in (b) is applied to the support beam 40, and the welding gun 63 driven by the robotic arm 62 is used to simultaneously weld the top and bottom of the support beam 40 at the positions where it connects to the crossbeam 20.

[0150] This allows for welding of multiple surfaces of the support beam 40.

[0151] The present invention also provides an installation method for steel structure construction.

[0152] A method for installing a steel structure for steel structure construction includes the following steps:

[0153] S1. Using the welding device for steel structure construction, a connecting plate is pre-welded on the vertical beam 30, and mounting holes are pre-drilled on the connecting plate and the horizontal beam 20.

[0154] S2. The two ends of the crossbeam 20 are installed on the connecting plate between the two vertical beams 30 by bolts and nuts;

[0155] S3. Using the aforementioned steel structure construction welding device, weld the two ends of the horizontal beam 20 to the corresponding vertical beam 30 at their connection points.

[0156] During construction, the connection between the horizontal beam 20 and the vertical beam 30 is first made by connecting the horizontal beam 20 with bolts and nuts using a connecting plate. Then, the connection between the horizontal beam 20 and the vertical beam 30 is welded using the welding device for steel structure construction, which can further improve the stability of the connection.

[0157] The connection points between the two ends of the crossbeam 20 and the corresponding vertical beam 30 include the connection surfaces of the connecting plates and the crossbeam 20; depending on the number of connecting plates, if there are fewer than four connecting plates, such as two, the connection surfaces of the crossbeam 20 and the vertical beam 30, as well as the connection surfaces of the connecting plates and the crossbeam 20, are welded.

[0158] The welding method for the support beam 40 and the crossbeam 20 is the same as above.

[0159] The specific structure of the welding device for steel structure construction is as described in the above embodiments. Since the installation method for steel structure construction adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0160] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A welding device for steel structure construction, characterized in that, include: A driving trolley, on which a first ranging device is installed; A drive device, comprising a drive motor, a main gear, and a mounting bracket, wherein the mounting bracket is mounted on the drive trolley via a mounting seat, the drive motor is mounted on the mounting bracket, and the main gear is mounted on the output end of the drive motor; An arc-shaped toothed plate is slidably mounted on the mounting bracket, and the main gear meshes with the arc-shaped toothed plate; A welding structure, comprising a fixed base, a robotic arm, and a welding torch, wherein the robotic arm is mounted on the arc-tooth plate via the fixed base, and the welding torch is mounted on the output end of the robotic arm; A lifting cylinder is mounted on the mounting base and is used to lift the arc tooth plate; Two positioning devices are respectively installed at the front and rear ends of the driving trolley in the direction of travel. Each positioning device includes a rotating device and two positioning structures. The driving trolley is located between the two positioning structures. The rotating device is used to drive the two positioning structures to rotate in opposite directions. The mounting base includes a sliding frame, a mounting block, and a rotary motor. The sliding frame is mounted on the drive trolley, the mounting block is slidably mounted on the sliding frame, and the rotary motor is mounted on the mounting block. The mounting frame includes a U-shaped frame, which is mounted on the output end of the rotary motor. The lifting cylinder is mounted on the U-shaped frame via a fixing frame. A moving device for driving the mounting block to move along the sliding frame; The moving device includes an L-shaped frame, a lead screw, a nut, a driving component, a rotating component, and a driving arm. The L-shaped frame is installed on the side of the driving trolley, the lead screw is fixedly installed on the L-shaped frame, the nut is threadedly connected to the lead screw, the driving component is used to drive the nut to rotate, the rotating component is sleeved and fixed on the nut, and the driving arm is fixedly connected to the rotating component and the mounting block. The driving component includes a driven gear, which is sleeved and mounted on the nut; When the driven gear is in the middle position of the lead screw, and the rotary motor drives the drive device to rotate 90 degrees, the main gear meshes with the driving member.

2. The welding device for steel structure construction according to claim 1, characterized in that, The positioning structure includes a connecting arm and a positioning wheel. One end of the connecting arm is installed at the output end of the rotating device, and the positioning wheel is installed at the other end of the connecting arm.

3. The welding device for steel structure construction according to claim 2, characterized in that, The welding device for steel structure construction also includes a second ranging device, which is mounted on the connecting arm.

4. The welding device for steel structure construction according to claim 1, characterized in that, The mounting frame also includes two support plates. The U-shaped frame is mounted on the drive trolley via a mounting base, and the two support plates are vertically slidably connected to the top two sides of the U-shaped frame. The drive motor is mounted on the U-shaped frame, and the arc-tooth plate is slidably mounted between the two support plates.

5. The welding apparatus for steel structure construction according to claim 1, characterized in that, Support rollers are installed on both sides of the drive trolley, and the support rollers are used to support the arc tooth plate.

6. The welding apparatus for steel structure construction according to claim 1, characterized in that, The drive component also includes two elastic telescopic rods. The driven gear is sleeved on the nut and there is a preset distance between them. The two ends of the elastic telescopic rod are fixedly connected to the nut and the driven gear. Both sides of the driven gear are set as inclined surfaces.

7. A method for installing a steel structure for steel structure construction, characterized in that, Includes the following steps: S1. Using the welding device for steel structure construction as described in any one of claims 1-6, pre-weld the connecting plate on the vertical beam, and pre-open the mounting holes on the connecting plate and the horizontal beam; S2. Install both ends of the crossbeam onto the connecting plate between the two vertical beams using bolts and nuts; S3. Using the welding device for steel structure construction as described in any one of claims 1-6, weld the two ends of the horizontal beam to the corresponding vertical beam.

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