Double-gun welding equipment for welding two sides of square tube

Abstract

The invention discloses double-gun welding equipment for welding two sides of a square tube, belongs to the technical field of welding equipment, and aims to solve the problems that the existing square tube welding completely depends on experience of welders in the early stage, no special tool exists, the quality fluctuation is large, a simple positioning clamp and auxiliary manual welding appear subsequently, the efficiency is slightly improved, but the assembling and positioning consumes time, the efficiency is low, the manual welding speed is non-uniform, and the welding cost is low. And the quality fluctuation is still large. A threaded rod can rotate, so that a cross frame is driven to adjust the height, lifting of a top plate is achieved, a square pipe is placed on the top plate and is aligned with a profiling mounting base to be fixed, clamping operation is omitted through direct placement, one side is directly supported manually, and a vertical motor thread assembly can control the horizontal adjusting assemblies on the two sides to ascend and descend; the welding gun assembly is symmetrically fixed, the vertical motor thread assembly and the horizontal adjusting assembly are matched to control the welding gun assembly to conduct automatic welding, the non-uniform welding speed is prevented, the quality is guaranteed, and the double-side welding efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a double-gun welding device for welding square tubes on both sides. Background Technology

[0002] Square tubes, with rectangular or square cross-sections, are widely used in various fields such as building steel structures, machinery manufacturing, automobile chassis, photovoltaic brackets, and furniture manufacturing due to their high strength, good stability, and economic practicality. Square tube welding is the core process for connecting square tube components.

[0003] In the early stages, the welding of square tubes relied entirely on the welder's experience, without specialized tooling, resulting in large quality fluctuations. Later, simple positioning fixtures were developed to assist manual welding, which slightly improved efficiency. However, assembly and positioning were time-consuming, resulting in low efficiency. The manual welding speed was uneven, and the quality fluctuations remained significant.

[0004] To address the aforementioned problems, a dual-gun welding device for double-sided welding of square tubes is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a double-gun welding device for double-sided welding of square tubes, which solves the problems in the prior art where the early square tube welding relied entirely on the welder's experience, lacked dedicated tooling, and had large quality fluctuations. Later, simple positioning fixtures were developed to assist manual welding, which slightly improved efficiency, but assembly and positioning were time-consuming, resulting in low efficiency, uneven manual welding speed, and still large quality fluctuations.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a double-gun welding device for double-sided welding of square tubes, comprising an optical fiber cabinet, wherein a double-gun welding mechanism for automatic double-sided welding is fixedly installed on one side of the optical fiber cabinet, and a lifting and positioning mechanism for positioning and fixing the square tube is installed at the upper end of the optical fiber cabinet. The optical fiber cabinet includes a worktable, and the lifting and positioning mechanism includes a base plate fixed to the upper end of the worktable, a cross frame rotatably sleeved on the upper end of the base plate, a top plate rotatably sleeved at the upper end of the cross frame, a connecting rod rotatably connected to one side of the cross frame, and a threaded rod threaded inside the connecting rod. The double-gun welding mechanism includes a fixed template mounting base, a vertical motor threaded assembly for controlling lifting, and a horizontal adjustment assembly symmetrically connected on both sides to the output end of the vertical motor threaded assembly. A welding gun assembly is screwed to one end of the horizontal adjustment assembly.

[0007] Furthermore, the fiber optic cabinet also includes a fiber optic cabinet fixedly installed at the lower end of the workbench, with four sets of bases at the bottom of the fiber optic cabinet, and a display screen fixedly installed on one side of the workbench.

[0008] Furthermore, the dual-gun welding mechanism also includes a Z-axis mounting base fixed to the upper end of the worktable with screws, the vertical motor threaded assembly fixed to the upper end of the Z-axis mounting base, the Z-axis mounting base housing a dedicated motor for the vertical motor threaded assembly, and the template mounting base connected to the side of the Z-axis mounting base near the lifting and positioning mechanism.

[0009] Furthermore, the output end of the vertical motor threaded assembly is threadedly fitted with a module mounting plate, and the module mounting plate is fixedly connected to the horizontal adjustment components on both sides, the horizontal adjustment components including the horizontal motor threaded assembly.

[0010] Furthermore, a clamp extension seat is screwed on one side of the horizontal motor threaded assembly, and a screw fastening clamp is screwed on one side of the clamp extension seat.

[0011] Furthermore, a hanging bracket is fixedly installed on one side of the horizontal adjustment component.

[0012] Furthermore, the welding torch assembly includes a welding torch holder clamped and fixed within a screw fastening fixture, a welding torch component is sleeved inside the welding torch holder, and a wire rod is provided at the upper end of the welding torch component.

[0013] Furthermore, two sets of fixing blocks are fixedly installed at the lower end of the top plate, and threaded rods are rotatably sleeved inside the two sets of fixing blocks.

[0014] Furthermore, positioning blocks are fixed to both sides of the upper end of the top plate with screws.

[0015] Furthermore, a knob adjustment assembly is fixedly provided at one end of the threaded rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention provides a double-gun welding device for double-sided welding of square tubes. The base plate and the worktable are fixed with screws. The threaded rod can rotate, thereby driving the connecting rod to move horizontally along the threaded rod. The movement of the connecting rod drives the cross frame to adjust its height, realizing the lifting and lowering of the top plate. The square tube is placed on the top plate and aligned with the template mounting seat for fixation. The direct placement setting eliminates the need for clamping operations, and one side can be manually supported. The positioning and fixing of the lifting and positioning mechanism only requires the first piece welding and debugging. It is easy to continuously replace the square tubes to be welded manually. It solves the problem that the existing square tube welding fixtures have simple positioning jigs to assist manual welding, which slightly improves efficiency, but the assembly and positioning are time-consuming.

[0017] 2. The present invention provides a double-gun welding device for double-sided welding of square tubes. The vertical motor threaded assembly can control the lifting and lowering of the horizontal adjustment components on both sides. Two sets of horizontal adjustment components are provided to symmetrically fix the welding gun components. The vertical motor threaded assembly and the horizontal adjustment components work together to control the welding gun components for automated welding, preventing uneven welding speed, ensuring quality, and achieving high double-sided welding efficiency. This solves the problem of uneven welding speed and large quality fluctuations in existing manual welding of square tubes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural schematic diagram of the fiber optic cabinet and dual-gun welding mechanism of the present invention; Figure 3 This is a schematic diagram of the dual-gun welding mechanism of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the dual-gun welding mechanism of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the disassembled structure of the lifting and positioning mechanism of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the disassembled structure of the lifting and positioning mechanism of the present invention. Figure 2 .

[0019] In the diagram: 1. Fiber optic cabinet; 11. Fiber optic cabinet; 12. Base; 13. Workbench; 14. Display screen; 2. Dual-gun welding mechanism; 21. Z-axis mounting base; 22. Template mounting base; 23. Vertical motor threaded assembly; 24. Module mounting plate; 25. Cable hanger; 26. Horizontal adjustment assembly; 261. Horizontal motor threaded assembly; 262. Clamp extension seat; 263. Screw fastening clamp; 27. Welding gun assembly; 271. Welding gun holder; 272. Wire rod; 273. Welding gun parts; 3. Lifting and positioning mechanism; 31. Base plate; 32. Cross frame; 321. Connecting rod; 33. Top plate; 331. Fixing block; 332. Positioning block; 34. Knob adjustment assembly; 341. Threaded rod. Detailed Implementation

[0020] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In order to solve existing technical problems, such as Figures 1-6 As shown, the following preferred technical solutions are provided: A double-gun welding device for double-sided welding of square tubes includes a fiber optic cabinet 1. A double-gun welding mechanism 2 for automatic double-sided welding is fixedly installed on one side of the fiber optic cabinet 1. A lifting and positioning mechanism 3 for positioning and fixing the square tube is installed at the upper end of the fiber optic cabinet 1. The fiber optic cabinet 1 includes a worktable 13. The lifting and positioning mechanism 3 includes a base plate 31 fixed to the upper end of the worktable 13, a cross frame 32 rotatably sleeved on the upper end of the base plate 31, a top plate 33 rotatably sleeved on the upper end of the cross frame 32, a connecting rod 321 rotatably connected to one side of the cross frame 32, and a threaded rod 341 threaded inside the connecting rod 321. The double-gun welding mechanism 2 includes a fixed template mounting base 22, a vertical motor threaded assembly 23 for controlling lifting, and a horizontal adjustment assembly 26 symmetrically connected to the output end of the vertical motor threaded assembly 23 on both sides. A welding gun assembly 27 is screwed to one end of the horizontal adjustment assembly 26.

[0022] Specifically, the workbench 13 is a workbench, and the base plate 31 is fixed to the workbench 13 with screws. The threaded rod 341 can rotate, thereby driving the connecting rod 321 to move horizontally along the threaded rod 341. The movement of the connecting rod 321 drives the cross frame 32 to adjust its height, realizing the lifting and lowering of the top plate 33. The square tube is placed on the top plate 33 and aligned with the template mounting seat 22 for fixation. The direct placement setting eliminates the need for clamping operations, and one side can be manually supported. The positioning and fixing of the lifting and positioning mechanism 3 only requires the first piece welding and debugging, which is easy for manual continuous replacement of the square tube to be welded. The vertical motor threaded assembly 23 can control the lifting and lowering of the horizontal adjustment components 26 on both sides. There are two sets of horizontal adjustment components 26, which symmetrically fix the welding gun assembly 27. The vertical motor threaded assembly 23 and the horizontal adjustment components 26 work together to control the welding gun assembly 27 for automated welding, preventing uneven welding speed, ensuring quality, and achieving high double-sided welding efficiency. The fiber optic cabinet 1 also includes a fiber optic cabinet 11 fixedly installed at the lower end of the workbench 13. The bottom of the fiber optic cabinet 11 is provided with four sets of bases 12. A display screen 14 is fixedly installed on one side of the workbench 13. The four sets of bases 12 can realize the leveling of the welding equipment. The fiber optic cabinet 11 contains the software and hardware supporting tooling required for the equipment. The display screen 14 sets and displays the welding path of the equipment.

[0023] The dual-gun welding mechanism 2 also includes a Z-axis mounting base 21 fixed to the upper end of the worktable 13 with screws, a vertical motor thread assembly 23 fixed to the upper end of the Z-axis mounting base 21, a dedicated motor for the vertical motor thread assembly 23 built into the Z-axis mounting base 21, a template mounting base 22 connected to the side of the Z-axis mounting base 21 near the lifting and positioning mechanism 3, the template mounting base 22 is set opposite to the lifting and positioning mechanism 3, so that the template mounting base 22 can align and position the square tube placed on the lifting and positioning mechanism 3, and a motor that drives the internal screw of the vertical motor thread assembly 23 to rotate is provided inside the Z-axis mounting base 21.

[0024] The output end of the vertical motor threaded assembly 23 is threaded with a module mounting plate 24. The module mounting plate 24 is fixedly connected to the horizontal adjustment assemblies 26 on both sides. The horizontal adjustment assembly 26 includes a horizontal motor threaded assembly 261. The horizontal motor threaded assembly 261 has a similar structure to the vertical motor threaded assembly 23. The module mounting plate 24 is used to fix the two symmetrical horizontal adjustment assemblies 26, so that the two sides of the square tube can be welded synchronously.

[0025] A clamp extension seat 262 is screwed on one side of the horizontal motor threaded assembly 261. A screw fastening clamp 263 is screwed on one side of the clamp extension seat 262. The screw fastening clamp 263 is used to fix the welding gun assembly 27. The clamp extension seat 262 extends outward to adapt to the fixing needs of the welding gun assembly 27. The clamp extension seat 262 is connected to the output end of the horizontal motor threaded assembly 261 and can be horizontally moved. A wire hanger 25 is fixedly provided on one side of the horizontal adjustment assembly 26. The wire hanger 25 is raised to place the solder wire.

[0026] The welding torch assembly 27 includes a welding torch holder 271 that is clamped and fixed in a screw fastening fixture 263. A welding torch component 273 is sleeved inside the welding torch holder 271. A wire rod 272 is provided at the upper end of the welding torch component 273. The wire rod 272 guides the solder wire and is fixed to the upper end of the welding torch component 273 by a clamp. The welding torch holder 271 is used to fix the welding torch component 273. The welding torch component 273 and the wire rod 272 work together to complete the welding.

[0027] Two sets of fixing blocks 331 are fixedly installed at the lower end of the top plate 33. The threaded rod 341 is rotated inside the two sets of fixing blocks 331. The fixing blocks 331 provide double-sided rotational support for the threaded rod 341. Positioning blocks 332 are fixed to both sides of the upper end of the top plate 33 with screws. The positioning blocks 332 are located on both sides and the middle is used to place the square tube. A knob adjustment component 34 is fixedly installed at one end of the threaded rod 341. The knob adjustment component 34 can be manually rotated, thereby driving the connecting rod 321 to move along the threaded rod 341. The two sides of the connecting rod 321 are rotatably connected to the cross frame 32. The displacement of the connecting rod 321 can drive the cross frame 32 to change the overall angle, realizing the lifting and lowering adjustment.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A double-gun welding device for double-sided welding of square tubes, comprising an optical fiber cabinet (1), characterized in that, The fiber optic cabinet (1) is fixedly provided with a double-gun welding mechanism (2) for double-sided automatic welding on one side, and a lifting and positioning mechanism (3) for positioning and fixing square tubes is provided at the upper end of the fiber optic cabinet (1). The fiber optic cabinet (1) includes a workbench (13), the lifting and positioning mechanism (3) includes a base plate (31) fixed to the upper end of the workbench (13), a cross frame (32) rotatably sleeved on the upper end of the base plate (31), a top plate (33) rotatably sleeved on the upper end of the cross frame (32), a connecting rod (321) rotatably connected to one side of the cross frame (32), and a threaded rod (341) threaded inside the connecting rod (321). The dual-gun welding mechanism (2) includes a fixed template mounting base (22), a vertical motor threaded assembly (23) for controlling lifting, and a horizontal adjustment assembly (26) symmetrically connected on both sides to the output end of the vertical motor threaded assembly (23). A welding gun assembly (27) is screwed to one end of the horizontal adjustment assembly (26).

2. The double-gun welding equipment for double-sided welding of square tubes as described in claim 1, characterized in that: The fiber optic cabinet (1) also includes a fiber optic cabinet (11) fixedly installed at the lower end of the workbench (13). The bottom of the fiber optic cabinet (11) is provided with four sets of bases (12), and a display screen (14) is fixedly installed on one side of the workbench (13).

3. The double-gun welding equipment for double-sided welding of square tubes as described in claim 2, characterized in that: The dual-gun welding mechanism (2) also includes a Z-axis mounting base (21) fixed to the upper end of the worktable (13) with screws, the vertical motor thread assembly (23) fixed to the upper end of the Z-axis mounting base (21), the Z-axis mounting base (21) has a dedicated motor for the vertical motor thread assembly (23) built in, and the template mounting base (22) is connected to the side of the Z-axis mounting base (21) near the lifting and positioning mechanism (3).

4. The double-gun welding equipment for double-sided welding of square tubes as described in claim 3, characterized in that: The output end of the vertical motor threaded assembly (23) is threaded with a module mounting plate (24), and the module mounting plate (24) is fixedly connected to the horizontal adjustment assemblies (26) on both sides. The horizontal adjustment assembly (26) includes a horizontal motor threaded assembly (261).

5. The double-gun welding equipment for double-sided welding of square tubes as described in claim 4, characterized in that: The horizontal motor threaded assembly (261) is screwed to one side of a clamp extension seat (262), and the clamp extension seat (262) is screwed to one side of a screw fastening clamp (263).

6. The double-gun welding equipment for double-sided welding of square tubes as described in claim 1, characterized in that: A hanging bracket (25) is fixedly installed on one side of the horizontal adjustment component (26).

7. The double-gun welding equipment for double-sided welding of square tubes as described in claim 5, characterized in that: The welding torch assembly (27) includes a welding torch holder (271) clamped and fixed in a screw fastening fixture (263), a welding torch component (273) is sleeved inside the welding torch holder (271), and a wire rod (272) is provided at the upper end of the welding torch component (273).

8. The double-gun welding equipment for double-sided welding of square tubes as described in claim 1, characterized in that: Two sets of fixing blocks (331) are fixedly installed at the lower end of the top plate (33), and the threaded rods (341) are rotated inside the two sets of fixing blocks (331).

9. The double-gun welding equipment for double-sided welding of square tubes as described in claim 1, characterized in that: Positioning blocks (332) are fixed to the upper two sides of the top plate (33) with screws.

10. The double-gun welding equipment for double-sided welding of square tubes as described in claim 8, characterized in that: A knob adjustment assembly (34) is fixedly provided at one end of the threaded rod (341).

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