A double-sided welding device

Abstract

The application relates to a double-sided welding device, belonging to the aluminum material welding technical field, which comprises a welding table, the welding table is provided with a positioning assembly, the positioning assembly positions a workpiece, and a long groove is formed in the welding table; a moving assembly is arranged on the welding table, the moving assembly is connected with a first welding frame and a second welding frame, a first welding head and a first wire feeding assembly are connected to the first welding frame, a second welding head and a second wire feeding assembly are connected to the second welding frame, and the first welding head and the second welding head simultaneously perform welding work on the upper surface and the lower surface of the workpiece respectively. The application has the effects of realizing double-sided synchronous automatic welding of aluminum materials, improving positioning precision and welding efficiency.

Description

Technical Field

[0001] This application relates to the field of aluminum welding technology, and in particular to a double-sided welding device. Background Technology

[0002] Metal welding technology is one of the core processes in manufacturing, especially in fields with high requirements for lightweighting, such as automobiles and aerospace. The demand for welding lightweight metals such as aluminum continues to grow. With the advancement of industrialization, welding processes are gradually developing towards automation and efficiency to replace the cumbersome steps of traditional manual positioning, clamping, and welding.

[0003] Existing welding processes generally adopt single-sided welding, which is highly dependent on manual labor. From workpiece positioning, clamping, flipping to welding, all steps require manual operation. After single-sided welding is completed, the workpiece still needs to be manually flipped to weld the other sides. This welding method not only consumes a lot of labor costs, but is also inefficient and has poor positioning accuracy. Utility Model Content

[0004] In order to achieve automated double-sided synchronous welding of aluminum materials and improve positioning accuracy and welding efficiency, this application provides a double-sided welding device.

[0005] The double-sided welding device provided in this application adopts the following technical solution: A double-sided welding device includes a welding table, on which a positioning component is provided for positioning a workpiece, and an elongated groove is formed. A moving component is provided on the welding table, and the moving component is connected to a first welding frame and a second welding frame. A first welding head and a first wire feeding component are connected to the first welding frame, and a second welding head and a second wire feeding component are connected to the second welding frame. The first welding head and the second welding head simultaneously perform welding work on the upper and lower surfaces of the workpiece, respectively.

[0006] By adopting the above technical solution, the positioning component of the welding station positions the workpiece for welding, while preventing the workpiece from shifting during welding; the moving component drives the first welding frame and the second welding frame to move synchronously, so that the first welding head welds the upper surface of the workpiece and the second welding head welds the lower surface of the workpiece simultaneously, thereby improving welding efficiency; the first wire feeding component and the second wire feeding component feed the wire synchronously for the corresponding welding head, ensuring that the wire supply for the double-sided weld is uniform and stable, avoiding weld quality differences caused by asynchronous wire feeding, and improving welding consistency.

[0007] Optionally, the positioning component includes a positioning plate and a support plate, with two of each. The two positioning plates and two support plates are symmetrical about the axis of the long groove. The height of the positioning plate is higher than the height of the support plate. The included angle between the two support plates and the long groove is 45°. The support plate is used to support and position the bottom of the workpiece, and the positioning plate is used to support and position the sidewalls of the workpiece.

[0008] By adopting the above technical solution, the two positioning plates and the two support plates are symmetrical about the axis of the long groove, forming a symmetrical positioning structure to ensure that the workpiece is in the welding center position after installation; the support plate is set at a 45° angle to achieve bottom support positioning of the workpiece; the positioning plate is higher than the support plate, which can form a lateral limit from the side wall of the workpiece, and form a coordinated positioning with the bottom support of the support plate. It is especially suitable for workpieces with 90° welding requirements such as angle steel, avoiding misalignment of the workpiece corners during welding and improving the welding accuracy of right angle welds.

[0009] Optionally, two cylinders are fixedly connected to the welding platform, and the piston rod of each cylinder is connected to a positioning block. The positioning block is located above the support plate and corresponds one-to-one with the support plate.

[0010] By adopting the above technical solution, the cylinder piston rod drives the positioning block to rise and fall. The positioning block corresponds one-to-one with the support plate and is located above it, forming a clamping structure of upper pressure and lower support for the workpiece. Before welding, the cylinder pushes the positioning block to press down on the workpiece, which cooperates with the support plate below to firmly fix the workpiece. The cylinder pressure can be adjusted as needed to adapt to the clamping requirements of workpieces of different thicknesses, ensuring positioning stability while avoiding excessive pressure that could cause workpiece deformation. The clamping action is highly automated, reducing manual positioning time and greatly improving the continuity of operations.

[0011] Optionally, an infrared laser is connected to the first welding frame, and the positioning point of the infrared laser on the workpiece is consistent with the welding point of the first welding head.

[0012] By adopting the above technical solution, the infrared laser on the first welding frame emits a positioning spot, and the spot completely coincides with the welding point of the first welding head. Before welding, the laser spot can be used to visually align the workpiece weld, achieving visual alignment; improving positioning accuracy, significantly reducing the risk of weld misalignment, reducing alignment time, shortening auxiliary operation time, and further improving welding efficiency.

[0013] Optionally, the moving component includes a first transverse slide, on which a first longitudinal slide is slidably disposed, the first welding frame is slidably connected to the first longitudinal slide, and the first welding head is fixedly connected to the first welding frame; a second transverse slide is disposed below the welding table, on which a second longitudinal slide is slidably disposed, the second welding frame is slidably connected to the second longitudinal slide, and the second welding head is fixedly connected to the second welding frame.

[0014] By adopting the above technical solution, the first welding frame and the second welding frame are slidably connected to the corresponding slides, providing a stable mounting base for the welding head. The first transverse slide and the first longitudinal slide above the welding table, together with the second transverse slide and the second longitudinal slide below, form an independently adjustable double slide system, which drives the first welding head and the second welding head to move for welding, expands the movement range of the first welding head and the second welding head, meets the welding requirements of different workpieces, and improves the versatility of the device.

[0015] Optionally, the first wire feeding assembly includes a wire spool rotatably connected to the first welding frame. The first welding frame is also provided with several sets of wire feeding wheels, which are located between the wire spool and the first welding head. The several sets of wire feeding wheels together clamp and feed the welding wire. A conveying pipe is also connected between the first welding head and the wire feeding wheels. The conveying pipe is used to convey the wire. The structure of the second wire feeding assembly is the same as that of the first wire feeding assembly.

[0016] By adopting the above technical solution, in the first wire feeding assembly, the wire spool provides wire storage, and multiple sets of wire feeding wheels clamp the wire together and achieve stable wire feeding through friction, avoiding the problem of slippage when feeding with a single wheel; the conveying pipe corrects the direction of the wire being fed, limits the relative position of the wire and the first welding head, and ensures that the wire is always aligned with the welding point; the second wire feeding assembly has the same structure as the first wire feeding assembly, and can realize synchronous and precise wire feeding of the upper and lower welds, ensuring that the amount of wire filling in the double-sided welds is consistent and improving the welding accuracy.

[0017] Optionally, the positioning plate has two connecting holes, and the positioning plate is bolted to the welding table, so that the distance between the two positioning plates and the angle forming the angle can be adjusted. A gap is left between the positioning plate and the support plate to allow the positioning plate to flip.

[0018] By adopting the above technical solution, the positioning plate is bolted to the welding table through the connecting hole, and the distance and included angle of the two positioning plates can be flexibly adjusted. It can not only adapt to 90° angle workpieces, but also meet the lateral positioning requirements of non-right angle workpieces such as 60° and 120°. The gap between the positioning plate and the support plate provides space for the positioning plate to flip, which is convenient to adjust the positioning angle according to the shape of the workpiece. It can adapt to a variety of workpieces without replacing the positioning components, reduce the cost of special tooling, and improve the scene adaptability of the device.

[0019] Optionally, the welding table is provided with positioning lines, which are symmetrical about the axis of the long groove.

[0020] By adopting the above technical solution, the positioning lines on the welding table are symmetrical about the axis of the long groove. On the one hand, this provides a benchmark for the installation of the support plate and the positioning plate, ensuring the symmetry accuracy of the two and avoiding positioning failure due to installation deviation. On the other hand, it provides a visual reference for the placement of the workpiece, allowing workers to quickly align the workpiece with the positioning lines and complete the initial positioning, reducing the adjustment time for subsequent laser alignment. The dual positioning benchmark further improves the preparation efficiency before welding, ensuring that the workpiece is always in the optimal welding position.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The positioning component precisely positions the workpiece to avoid displacement during welding; the moving component drives the first welding frame and the second welding frame to move synchronously, so that the first welding head and the second welding head weld the upper and lower surfaces of the workpiece simultaneously, greatly improving welding efficiency; the dual wire feeding component feeds wire synchronously to the corresponding welding head, ensuring uniform wire supply to the double-sided weld, reducing weld quality differences, improving welding consistency, and realizing synchronous automated welding of the workpiece on both sides. 2. The symmetrical positioning structure and cylinder clamping work together to improve positioning accuracy. The two positioning plates and the support plate are symmetrical about the axis of the long groove. The 45° support plate and the high-specification positioning plate form a coordinated positioning of the bottom and side walls, which is suitable for 90° workpieces such as angle steel. The cylinder drives the positioning block to form a clamping structure with upper pressure and lower support. The pressure is adjustable to adapt to workpieces of different thicknesses, which not only prevents deformation but also ensures stability and reduces manual positioning time. 3. Infrared laser positioning shortens auxiliary time and ensures accuracy. The positioning spot of the infrared laser is completely aligned with the welding point, realizing visual alignment of the weld. The positioning accuracy is high, which greatly reduces the risk of weld misalignment. At the same time, it can quickly complete weld alignment and further improve the overall welding efficiency. 4. The dual-slide table system enhances the versatility of the device. The independent slide table groups on the upper and lower parts of the welding table can adjust the position of the two welding heads separately. The cooperation of the lateral and longitudinal slide tables expands the range of movement of the welding heads, which can adapt to workpieces of different sizes and weld trajectories. It can meet diverse welding needs without replacing special parts. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0023] Figure 2 This is a schematic diagram illustrating the structure of the positioning component in an embodiment of this application.

[0024] Figure 3 This is a schematic diagram illustrating the structure of the mobile component in an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 1. Welding table; 11. Long groove; 12. Positioning line; 2. Moving assembly; 21. First transverse slide; 22. First longitudinal slide; 23. First welding frame; 24. First welding head; 241. Connecting frame; 242. Conveying pipe; 243. Infrared laser; 25. Second transverse slide; 26. Second longitudinal slide; 27. Second welding frame; 28. Second welding head; 29. ​​Second wire feeding assembly; 3. Positioning assembly; 31. Support plate; 32. Positioning plate; 321. Connecting hole; 41. Cylinder; 42. Connecting plate; 43. Positioning block; 5. First wire feeding assembly; 51. Wire spool; 52. Mounting shell. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0027] This application discloses a double-sided welding apparatus.

[0028] like Figures 1 to 3 A double-sided welding device includes a welding table 1, on which a moving component 2 is provided. The moving component 2 is connected to a first welding head 24 and a second welding head 28. The first welding head 24 is located above the welding table 1 and welds the upper surface of the workpiece. The second welding head 28 is located below the welding table 1 and welds the lower surface of the workpiece.

[0029] A long groove 11 is provided on the welding table 1. The length of the long groove 11 is greater than the weld length of the workpiece, and the width of the long groove 11 is greater than the width of the second welding head 28, so that the second welding head 28 can pass through the long groove 11 from below the welding table 1 and extend into the welding table 1 above to weld the lower surface of the workpiece.

[0030] The welding table 1 is equipped with a positioning component 3, which includes two support plates 31. The two support plates 31 are set at 90° and are symmetrical about the central axis of the long groove 11. The opposite side of the two support plates 31 is consistent with the shape of the long groove 11, so that the second welding head 28 can pass through and weld the lower surface of the workpiece. A positioning plate 32 is set on each side of the two support plates 31. The two positioning plates 32 are also symmetrical about the central axis of the long groove 11. The height of the positioning plate 32 is higher than the height of the support plate 31, and it is used to support and limit the side wall of the workpiece. The positioning plate 32 has two connecting holes 321 and is bolted to the welding table 1. There is a gap between the support plate 31 and the positioning plate 32 for the positioning plate 32 to rotate. The included angle formed between the two positioning plates 32 can be adjusted according to the welding requirements of the workpiece, so that the device can adapt to welding requirements of different angles.

[0031] The welding table 1 is also equipped with a positioning line 12, which is symmetrical about the axis of the long groove 11. It provides an installation reference for the installation of the support plate 31. At the same time, it can assist the workpiece in positioning and reduce the subsequent adjustment time.

[0032] Two cylinders 41 are bolted to the welding table 1. The piston rod of each cylinder 41 is vertically upward. A connecting plate 42 is bolted to the piston rod of the cylinder 41. A positioning block 43 is bolted to the bottom of the connecting plate 42. The positioning block 43 is located directly above the corresponding support plate 31.

[0033] When the workpiece is placed on the V-shaped positioning surface formed by the two support plates 31, the cylinder 41 drives the positioning block 43 to press down, so that the positioning block 43 is tightly pressed against the upper surface of the workpiece. Together with the support plate 31 below and the positioning plate 32 on the side, it forms a three-point clamping structure to position the workpiece. The two connecting plates 42, the two positioning blocks 43 and the two support plates 31 are all symmetrical about the central axis of the long groove 11, and the distance between them is consistent with the width of the long groove 11.

[0034] The moving component 2 includes a first transverse slide 21, which is located above the welding table 1. A first longitudinal slide 22 is slidably disposed on the first transverse slide 21. A first welding frame 23 is slidably disposed on the first longitudinal slide 22. A first welding head 24 is detachably connected to the first welding frame 23. The first welding head 24 is located above the long groove 11 and directly opposite the central axis of the long groove 11. A first wire feeding assembly 5 is connected to the first welding table 1. The first wire feeding assembly 5 includes a wire spool 51, which is rotatably connected to the first welding table 1. The wire spool 51 is used to wind the wire for welding. A mounting shell 52 is fixedly connected to the first welding frame 23. The mounting shell 52 is located between the wire spool 51 and the first welding head 24. Three sets of wire feeding wheels are arranged inside the mounting shell 52. The three sets of wire feeding wheels are arranged side by side to clamp the wire. Stable feeding of the wire is achieved by friction drive. A connecting frame 241 is fixedly connected to the first welding head 24. The mounting shell 52 and the connecting frame 241 are connected by a conveying pipe 242. The wire passes through the conveying pipe 242 and is conveyed to the first welding head 24. The conveying pipe 242 is used to correct the conveying direction of the wire and ensure that the wire is accurately aligned with the welding point.

[0035] A second transverse slide 25 is provided below the welding table 1. A second longitudinal slide 26 is slidably provided on the second transverse slide 25. A second welding frame 27 is slidably provided on the second longitudinal slide 26. A second welding head 28 and a second wire feeding assembly 29 are provided on the second welding frame 27. The second wire feeding assembly 29 has the same structure as the first wire feeding assembly 5. The second welding head 28 and the first welding head 24 are symmetrical about the center plane of the workpiece, so as to realize synchronous wire feeding for upper and lower welding and ensure uniform weld filling.

[0036] An infrared laser 243 is connected to the first welding head 24. The infrared laser 243 emits a laser positioning point. The position of the laser positioning point on the workpiece is completely coincident with the welding point of the first welding head 24. The operator can intuitively understand the welding point through this positioning point and align the weld seam to weld the workpiece.

[0037] The implementation principle of this application embodiment is as follows: the included angle between the two positioning plates 32 is adjusted to the welding angle required by the workpiece and fixed. Then the workpiece is placed on the V-shaped positioning surface formed by the two support plates 31 to ensure that the workpiece is stably placed on the support plate 31 and the side abuts against the positioning plate 32. When the cylinder 41 is activated, the piston rod drives the positioning block 43 to press down, so that the positioning block 43 is tightly pressed against the upper surface of the workpiece. Together with the support plate 31 below and the positioning plate 32 on the side, it forms a three-point clamping structure to fix the position of the workpiece and prevent it from shifting during the welding process.

[0038] The infrared laser 243 on the first welding head 24 emits a positioning light point, which is completely superimposed on the welding point of the first welding head 24. The operator can intuitively observe the alignment of the light point with the weld seam of the workpiece, achieving high-precision visual alignment and greatly shortening the auxiliary time.

[0039] Then, the moving component 2 is activated. The first transverse slide 21 and the first longitudinal slide 22 synchronously drive the first welding frame 23 and the first welding head 24 to move along the upper surface of the workpiece. At the same time, the second transverse slide 25 and the second longitudinal slide 26 drive the second welding frame 27 and the second welding head 28 to move along the lower surface of the workpiece. The two are symmetrical about the center plane of the workpiece, realizing synchronous double-sided welding. During this process, the first wire feeding assembly 5 and the second wire feeding assembly 29 work together through the wire spool 51, multiple sets of wire feeding wheels, and the conveying pipe 242 to stably feed the wire to the welding point, ensuring that the wire filling of the upper and lower welds is uniform and consistent, and avoiding weld quality differences caused by asynchronous wire feeding.

[0040] After welding is completed, cylinder 41 resets and drives positioning block 43 to rise, remove the workpiece, and the device can then be removed to prepare for the next round of welding. The overall process is highly automated, significantly improving welding efficiency and consistency. It is especially suitable for high-precision double-sided welding of 90° angle steel and other angled workpieces.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-sided welding device, characterized in that: The assembly includes a welding table (1), on which a positioning component (3) is provided to position the workpiece. The welding table (1) has an elongated groove (11). The welding table (1) is provided with a moving component (2), which is connected to a first welding frame (23) and a second welding frame (27). The first welding frame (23) is connected to a first welding head (24) and a first wire feeding component (5). The second welding frame (27) is connected to a second welding head (28) and a second wire feeding component (29). The first welding head (24) and the second welding head (28) perform welding work on the upper and lower surfaces of the workpiece simultaneously, respectively.

2. The double-sided welding device according to claim 1, characterized in that: The positioning component (3) includes a positioning plate (32) and a support plate (31). There are two positioning plates (32) and two support plates (31). The two positioning plates (32) and the two support plates (31) are symmetrical about the axis of the long groove (11). The height of the positioning plate (32) is higher than the height of the support plate (31). The included angle between the two support plates (31) and the long groove (11) is 45°. The support plate (31) is used to support and position the bottom of the workpiece, and the positioning plate (32) is used to support and position the side wall of the workpiece.

3. The double-sided welding device according to claim 2, characterized in that: Two cylinders (41) are fixedly connected to the welding table (1). Each cylinder (41) has a piston rod connected to a positioning block (43). The positioning block (43) is located above the support plate (31) and corresponds one-to-one with the support plate (31).

4. The double-sided welding device according to claim 1, characterized in that: An infrared laser (243) is connected to the first welding frame (23), and the positioning point of the infrared laser (243) on the workpiece is consistent with the welding point of the first welding head (24).

5. The double-sided welding device according to claim 1, characterized in that: The moving component (2) includes a first transverse slide (21), a first longitudinal slide (22) is slidably disposed on the first transverse slide (21), the first welding frame (23) is slidably connected to the first longitudinal slide (22), and the first welding head (24) is fixedly connected to the first welding frame (23); a second transverse slide (25) is disposed below the welding table (1), a second longitudinal slide (26) is slidably disposed on the second transverse slide (25), the second welding frame (27) is slidably connected to the second longitudinal slide (26), and the second welding head (28) is fixedly connected to the second welding frame (27).

6. The double-sided welding device according to claim 1, characterized in that: The first wire feeding assembly (5) includes a wire spool (51), which is rotatably connected to the first welding frame (23). The first welding frame (23) is also provided with several sets of wire feeding wheels, which are located between the wire spool (51) and the first welding head (24). The several sets of wire feeding wheels together clamp and transport the welding wire. A conveying pipe (242) is also connected between the first welding head (24) and the wire feeding wheels. The conveying pipe (242) is used to transport the wire. The structure of the second wire feeding assembly (29) is the same as that of the first wire feeding assembly (5).

7. The double-sided welding device according to claim 2, characterized in that: The positioning plate (32) has two connecting holes (321). The positioning plate (32) is bolted to the welding table (1), so that the distance between the two positioning plates (32) and the angle of the included angle can be adjusted. A gap is left between the positioning plate (32) and the support plate (31) for the positioning plate (32) to flip.

8. The double-sided welding device according to claim 1, characterized in that: The welding table (1) is provided with a positioning line (12), which is symmetrical about the axis of the long groove (11).

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