A welding equipment for U-shaped beams

Abstract

This utility model relates to the field of welding equipment technology, specifically a welding device for U-shaped beams. It includes a gantry frame, multiple first displacement mechanisms, second displacement mechanisms, and welding mechanisms. The gantry frame is slidably mounted on the working ground. The multiple first displacement mechanisms are slidably mounted on the top of the gantry frame, arranged sequentially along the length of the gantry frame. Multiple second displacement mechanisms are slidably mounted on the multiple first displacement mechanisms, each arranged along the height of the gantry frame. The welding mechanisms are movably mounted on the multiple second displacement mechanisms. This U-shaped beam welding device automatically welds the entire weld seam on both sides of the U-shaped beam, achieving good welding quality and high welding efficiency. The starting and ending points of multiple weld seams are also guaranteed to be consistent, and it is suitable for welding U-shaped beams of different sizes, thus having a wide range of applications.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, specifically to a welding equipment for U-shaped beams. Background Technology

[0002] Currently, welding of U-beams and panels typically employs manual gas-shielded welding. After the U-beam is fixed, the weld seams are manually joined, and then a handheld welding torch is used for welding. One weld seam is completed before moving on to the next, and this process is repeated until all weld seams are finished. However, due to the large overall length of the U-beam and panel, the welding torch cable is quite long, making manual welding inconvenient, prone to damage, and posing a safety hazard. Furthermore, manual welding can only perform one weld seam at a time, resulting in low efficiency and requiring high welding skill. It is also difficult to ensure that the starting and ending points of the weld seams are consistent each time, leading to inconsistent weld quality and difficulty in guaranteeing the overall welding effect. Therefore, a welding device for U-beams is urgently needed to solve these problems. Utility Model Content

[0003] To address the technical problems of low welding efficiency and inconsistent welding quality when manually welding U-beams and panels, this invention provides a welding device for U-beams that automatically welds the entire weld seam on both sides of the U-beam, resulting in high welding quality and efficiency. The device also ensures that the starting and ending points of multiple weld seams are consistent and is applicable to welding U-beams of different sizes, thus having a wide range of applications.

[0004] This utility model provides a welding equipment for U-shaped beams, including a gantry frame, multiple first displacement mechanisms, second displacement mechanisms, and welding mechanisms. The gantry frame is slidably mounted on the working ground. The multiple first displacement mechanisms are all slidably mounted on the top of the gantry frame and are arranged sequentially along the length of the gantry frame. The multiple second displacement mechanisms are respectively slidably mounted on the multiple first displacement mechanisms and are arranged along the height of the gantry frame. The multiple welding mechanisms are respectively movably mounted on the multiple second displacement mechanisms.

[0005] Furthermore, two bases are arranged opposite each other on the working ground, and a support rail is fixedly installed on each base. Traveling parts are provided at both ends of the lower part of the gantry frame, and each traveling part is slidably mounted on the support rail. When the traveling parts are activated, they drive the gantry frame to slide back and forth along the support rail.

[0006] Furthermore, each of the aforementioned traveling units includes a traveling cover, a traveling motor, and traveling wheels. The traveling cover is fixedly installed at the lower end of the gantry traveling frame. The traveling motor is adjustablely mounted on the traveling cover, and its output shaft is fixedly connected to a guide gear and can drive the guide gear to rotate. A guide rack matching the guide gear is fixedly installed on the support rail, and the guide gear meshes with the guide rack. The traveling wheels are rotatably mounted on the traveling cover and contact the support rail, sliding back and forth on it. When the traveling motor starts, it drives the guide gear to rotate. Since the guide gear meshes with the guide rack, the guide gear actually moves back and forth along the guide rack. After the guide gear moves back and forth, it drives the traveling wheels to rotate on the top of the support rail to achieve back and forth movement.

[0007] Furthermore, each of the first displacement mechanisms includes a translation slide plate and a translation motor. The translation slide plate is slidably mounted on the top of the gantry frame, and the translation motor is adjustablely mounted on the translation slide plate. The output shaft of the translation motor passes through the translation slide plate and is fixedly connected to a translation gear, enabling it to rotate. A translation rack matching the translation gear is fixedly mounted on the top of the gantry frame, and the translation gear meshes with the translation rack. When the translation motor starts, it drives the translation gear to rotate. Since the translation gear meshes with the translation rack, the translation gear actually moves left and right along the translation rack. After the translation gear moves left and right, it drives the translation slide plate to slide left and right on the gantry frame, so that the second displacement mechanism and the welding mechanism are aligned with the U-shaped beam.

[0008] Furthermore, each of the second displacement mechanisms includes a vertical arm and a lifting cylinder. The translation slide is inverted L-shaped, the vertical arm is slidably disposed on the side of the translation slide, and the lifting cylinder is fixedly disposed on the side of the translation slide. The extension rod of the lifting cylinder is fixedly connected to the vertical arm and can drive it to slide up and down. When the lifting cylinder is activated, it drives the vertical arm to slide up and down, which in turn drives the welding mechanism to slide up and down, so that the welding mechanism is aligned with the weld of the U-shaped beam.

[0009] Furthermore, each of the welding mechanisms includes a welding seat and two welding parts. The welding seat is fixedly mounted on the bottom of the vertical arm. The two welding parts are symmetrically arranged on the welding seat and slide relative to each other. Each welding part includes a gun holder, a clamping slide plate, and a welding gun. The gun holder is slidably mounted on the welding seat. The clamping slide plate is slidably mounted on the gun holder and is inclined. A clamping wheel is rotatably mounted on the clamping slide plate. The welding gun is adjustablely mounted on the gun holder. The head of the welding gun is curved and located below the clamping wheel.

[0010] Furthermore, each welding seat has two sliding opening and closing plates that slide relative to each other. Each welding seat also has two symmetrically arranged opening and closing cylinders. The two opening and closing plates are located outside the two opening and closing cylinders. The telescopic rod of each opening and closing cylinder is fixedly connected to the opening and closing plate and can drive it to slide left and right. Each opening and closing plate has a first slider fixedly mounted on it. Each welding gun seat has a first guide rail fixedly mounted on it, matching the first slider. The first slider is engaged with the first guide rail, and the first guide rail slides up and down relative to the first slider. When the opening and closing cylinder is activated, it drives the opening and closing plates to slide left and right. When the lifting cylinder is activated, it drives the vertical arm to slide downwards. Due to the cooperation of the first slider and the first guide rail, when the clamping wheel contacts the U-shaped beam, the contact changes from hard contact to soft contact, preventing damage to the side of the U-shaped beam. Then, the two clamping plates slide relative to each other, causing the two clamping wheels to press against the sides of the U-shaped beam, ensuring that the welding gun can be aligned with the weld seam to complete the welding.

[0011] Furthermore, each gun mount is inclinedly provided with a mounting base, and a clamping cylinder is fixedly mounted on the mounting base. The telescopic rod of the clamping cylinder is fixedly connected to the clamping slide plate and can drive it to slide left and right. The mounting base is provided with a toothed groove, and a clamping rack that matches the toothed groove is fixedly mounted on the clamping slide plate. The clamping rack passes through the toothed groove and the two mesh. When the clamping cylinder is activated, it drives the clamping slide plate and the clamping rack to slide left and right, ultimately driving the clamping wheel to slide left and right, so that the clamping wheel presses against the side of the U-shaped beam. Because the clamping rack meshes with the toothed groove, the clamping rack slides left and right relative to the toothed groove, i.e., the mounting base. The cooperation between the clamping rack and the toothed groove keeps the clamping slide plate stable during sliding.

[0012] Furthermore, each welding torch is fixedly equipped with a base, and each torch base is adjustablely equipped with an adjusting block. Each fixed base is fixedly mounted on the adjusting block. Each adjusting block includes a first connecting plate and a second connecting plate. The first connecting plate is fixedly mounted on the torch base, and the second connecting plate is adjustablely mounted on the first connecting plate. A fixing rod is fixedly mounted on the second connecting plate, and a fixing plate is fixedly mounted on the base, with the fixing rod passing through the fixing plate. By adjusting the adjusting block, the angle of the welding torch can be adjusted. For welding equipment of different sizes, the angle of the welding torch is adjusted accordingly to ensure that the welding torch is aligned with the corresponding weld seam.

[0013] Furthermore, multiple wire drums are fixedly installed on the top of the gantry traveling frame, and two wire feeders are fixedly installed on each vertical arm. Each wire feeder is used to feed the welding wire in the wire drum to the welding torch. The welding wire in the drum is guided onto the wire feeder, which then guides the welding wire into the welding torch. The wire feeder does not stop feeding wire while the welding torch is in operation.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The welding equipment for U-shaped beams of this invention enables automatic welding of the entire weld seam on both sides of the U-shaped beam, resulting in good welding quality and high welding efficiency. The starting and ending points of multiple weld seams are also guaranteed to be consistent, and it is applicable to welding U-shaped beams of different sizes, making it widely applicable. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a welding device for U-shaped beams according to this utility model;

[0017] Figure 2 This is a utility model Figure 1 Enlarged structural diagram of A in the middle;

[0018] Figure 3 This is a schematic diagram of the walking mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the walking cover of this utility model;

[0020] Figure 5 This is a bottom view structural diagram of the walking cover of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the first displacement mechanism of this utility model;

[0022] Figure 7 This is a utility model Figure 6 Enlarged structural diagram of B in the middle;

[0023] Figure 8 This is a schematic diagram of the second displacement mechanism of this utility model;

[0024] Figure 9 This is a utility model Figure 8 Enlarged schematic diagram of the structure of C;

[0025] Figure 10 This is a utility model Figure 8 Enlarged schematic diagram of the structure of D;

[0026] Figure 11 This is a schematic diagram of the welding torch of this utility model;

[0027] Figure 12 A schematic diagram of the structure of the first connecting plate of the utility model;

[0028] Figure 13 A schematic diagram of the structure of the second connecting plate of the utility model;

[0029] Figure 14 A schematic diagram of the structure of the clamping slide plate of the utility model;

[0030] The numbers in the attached diagram are:

[0031] 1. Gantry traveling frame; 11. Traveling cover; 111. First auxiliary gear; 112. Limit wheel; 12. Traveling motor; 13. Traveling wheel; 14. Guide gear; 15. Translation rack; 16. Translation guide rail; 17. Pedestrian crossing; 18. Guardrail; 19. Staircase; 2. First displacement mechanism; 21. Translation slide plate; 211. Translation slider; 212. Lifting slider; 22. Translation motor; 23. Translation gear; 24. Second auxiliary gear; 3. Second displacement mechanism; 31. Vertical arm; 311. Lifting guide rail; 32. Lifting cylinder; 4. Welding mechanism; 41. Welding seat; 411. Second guide rail; 42. Gun base; 421. First guide rail; 422. Support wheel; 43. Top 431. Tightening slide plate; 432. Tightening rack; 44. Welding torch; 441. Fixing base; 442. Fixing plate; 45. Opening and closing plate; 451. First slider; 452. Second slider; 46. Opening and closing cylinder; 47. Mounting base; 48. Tightening cylinder; 49. Adjusting block; 491. First connecting plate; 492. Second connecting plate; 493. Fixing rod; 5. Base; 51. Support rail; 52. Guide rack; 53. Support base; 6. Wire drum; 7. Wire feeder; 8. First adjusting component; 81. Positioning plate; 82. Sliding plate; 83. Side plate; 84. First sliding rod; 85. First spring; 9. Second adjusting component; 91. L-shaped fixing block; 92. L-shaped sliding block. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1-14 As shown, a welding device for U-shaped beams includes a gantry frame 1, multiple first displacement mechanisms 2, second displacement mechanisms 3, and welding mechanisms 4. The gantry frame 1 is slidably mounted on the working ground. The multiple first displacement mechanisms 2 are all slidably mounted on the top of the gantry frame 1, arranged sequentially along the length of the gantry frame 1. The multiple second displacement mechanisms 3 are respectively slidably mounted on the multiple first displacement mechanisms 2, each second displacement mechanism 3 being arranged along the height of the gantry frame 1. The multiple welding mechanisms 4 are movably mounted on the multiple second displacement mechanisms 3. Preferably, there are four first displacement mechanisms 2 and four second displacement mechanisms 3. The welding device welds four U-shaped beams to the panel at a time, that is, completes the welding of eight welds in one operation.

[0034] In this embodiment, the welding equipment operates as follows: the panel is placed on the working ground, and the U-shaped beam to be welded is placed on the panel and positioned below the gantry frame 1. The length direction of the U-shaped beam to be welded is consistent with the sliding direction of the gantry frame 1. The first displacement mechanism 2 and the second displacement mechanism 3 are activated, driving the welding mechanism 4 to move to the weld seam of the U-shaped beam. The welding mechanism 4 then starts welding the weld seams on both sides of the U-shaped beam. Simultaneously, the gantry frame 1 slides, and finally, the welding mechanism 4 slides along the length direction of the U-shaped beam, achieving welding of the entire weld seam on both sides of the U-shaped beam.

[0035] The welding equipment in this embodiment can automatically weld the entire weld seam on both sides of the U-shaped beam, with good welding quality and high welding efficiency; the starting point and stopping point of welding multiple weld seams are also guaranteed to be consistent, and it is applicable to welding U-shaped beams of different sizes, with a wide range of applications.

[0036] In one possible implementation, two bases 5 are arranged opposite each other on the working ground. Each base 5 has a fixed support rail 51. The lower ends of the gantry frame 1 are each equipped with a traveling part, and each traveling part is slidably mounted on the support rail 51. When the traveling part is activated, it drives the gantry frame 1 to slide back and forth along the support rail 51. Furthermore, multiple support seats 53 are fixedly arranged at equal intervals on the base 5. Each support seat 53 has a support groove. The support rail 51 is I-shaped, and its bottom is engaged with the multiple support grooves. The support rail 51 is thus fixed to the base 5.

[0037] In one possible implementation, each of the traveling units includes a traveling cover 11, a traveling motor 12, and traveling wheels 13. The traveling cover 11 is fixedly installed at the lower end of the gantry traveling frame 1. The traveling motor 12 is adjustablely installed inside the traveling cover 11. The output shaft of the traveling motor 12 is fixedly connected to a guide gear 14 and can drive it to rotate. A guide rack 52 matching the guide gear 14 is fixedly installed on the side of the support rail 51. The guide gear 14 meshes with the guide rack 52. The traveling wheels 13 are rotatably installed inside the traveling cover 11. The traveling wheels 13 contact the top of the support rail 51 and slide back and forth on it. The traveling cover 11 protects the traveling motor 12 and the traveling wheels 13. There are two traveling wheels 13, and the traveling motor 12 is located between the two traveling wheels 13. Not all the teeth on the guide rack 52 are shown in the diagram. When the travel motor 12 starts, it drives the guide gear 14 to rotate. Since the guide gear 14 meshes with the guide rack 52, the guide gear 14 actually moves back and forth along the guide rack 52. After the guide gear 14 moves back and forth, it drives the travel wheel 13 to rotate on the top of the support rail 51 to achieve back and forth movement. With the cooperation of the guide gear 14 and the guide rack 52 and the rotation of the travel wheel 13, the gantry frame 1 slides back and forth along the support rail 51.

[0038] Furthermore, a first shaft is fixedly installed on the walking cover 11, a first bearing is fixedly installed on the first shaft, and the walking wheel 13 is sleeved on the first bearing and can rotate.

[0039] Preferably, a first auxiliary gear 111 that matches the guide rack 52 is rotatably mounted on the traveling cover 11. The first auxiliary gear 111 meshes with the guide rack 52 to further ensure that the gantry traveling frame 1 can slide normally back and forth. Furthermore, a second shaft is fixedly mounted on the traveling cover 11, and a second bearing is fixedly mounted on the second shaft. The first auxiliary gear 111 is sleeved on the second bearing and can rotate.

[0040] Preferably, the walking cover 11 is further provided with multiple guide groups, each guide group including two limiting wheels 112 rotatably mounted on the walking cover 11 and matched with the support rail 51. The two limiting wheels 112 are located on both sides of the support rail 51 and in contact with it, and the limiting wheels 112 further ensure that the gantry walking frame 1 can slide normally back and forth. Furthermore, a third shaft is fixedly mounted on the walking cover 11, and a third bearing is fixedly mounted on the third shaft. The limiting wheels 112 are sleeved on the second bearing and can rotate.

[0041] Preferably, the walking cover 11 is provided with a first adjustment component 8, which includes a positioning plate 81, a sliding plate 82, a side plate 83, a first sliding rod 84, and a first spring 85. The positioning plate 81 is fixedly mounted on the walking cover 11, the sliding plate 82 is slidably mounted on the positioning plate 81, and the walking motor 12 is fixedly mounted on the sliding plate 82. The positioning plate 81 is fixedly provided with a first central hole and a first through hole. The size of the first central hole is much larger than the size of the output shaft of the walking motor 12. The output shaft of the walking motor 12 passes through the first central hole and is fixedly connected to the guide gear 14. The sliding plate 82 is provided with a first oblong hole, and a bolt passes through the first oblong hole and the first through hole to be fixedly connected to a nut. The size of the first oblong hole determines the fine-tuning range of the sliding plate 82 and the walking motor 12. The side plate 83 is fixedly mounted on the outside of the positioning plate 81. The first sliding rod 84 is fixedly mounted on the side plate 83, with its end passing through the positioning plate 81 and the sliding plate 82. The first spring 85 is sleeved on the first sliding rod 84, with one end of the first spring 85 fixedly connected to the first sliding rod 84 and the other end fixedly connected to the sliding plate 82. The sliding plate 82 slides on the positioning plate 81 via the first spring 85. The position of the walking motor 12 is finely adjusted, as is the position of the output shaft of the walking motor 12 in the first central hole, to ensure that the guide gear 14 and the guide rack 52 can always mesh. A protective cover is fixedly mounted on the walking cover 11, covering the positioning plate 81 and the sliding plate 82.

[0042] In one possible implementation, each of the first displacement mechanisms 2 includes a translation slide plate 21 and a translation motor 22. The translation slide plate 21 is slidably mounted on the top of the gantry frame 1, and the translation motor 22 is adjustablely mounted on the translation slide plate 21. The output shaft of the translation motor 22 passes through the translation slide plate 21 and is fixedly connected to the translation gear 23, enabling it to rotate. A translation rack 15 matching the translation gear 23 is fixedly mounted on the top of the gantry frame 1, and the translation gear 23 meshes with the translation rack 15. Not all teeth on the translation rack 15 are shown in the diagram. When the translation motor 22 is started, it drives the translation gear 23 to rotate. Since the translation gear 23 meshes with the translation rack 15, the translation gear 23 actually moves left and right along the translation rack 15. After the translation gear 23 moves left and right, it drives the translation slide plate 21 to slide left and right on the gantry frame 1, causing the second displacement mechanism 3 and the welding mechanism 4 to align with the U-shaped beam.

[0043] Preferably, a translation guide rail 16 is fixedly installed on the top of the gantry frame 1, and a translation slider 211 matching the translation guide rail 16 is fixedly installed on the translation slide plate 21. The translation slider 211 is engaged with the translation guide rail 16 and slides on it. Preferably, translation guide rails 16 are provided on both the top and sides of the gantry frame 1, and the translation slide plate 21 is inverted L-shaped. Translation sliders 211 are provided on the top and sides of the translation slide plate 21 at positions corresponding to the translation guide rails 16, ensuring greater stability when the translation slide plate 21 slides left and right on the gantry frame 1.

[0044] Preferably, a second auxiliary gear 24, matching the translation rack 15, is rotatably mounted on the translation slide plate 21, and the second auxiliary gear 24 meshes with the guide rack 52. Furthermore, a fourth shaft is fixedly mounted on the translation slide plate 21, and a fourth bearing is fixedly mounted on the fourth shaft. The second auxiliary gear 24 is sleeved on the fourth bearing and can rotate, further ensuring that the translation slide plate 21 can slide normally left and right.

[0045] Preferably, the translation slide plate 21 is provided with a second adjustment component 9, which includes an L-shaped fixing block 91 and an L-shaped sliding block 92.

[0046] Preferably, the L-shaped fixing block 91 is fixedly mounted on the translation slide plate 21, and the L-shaped sliding block 92 is fixedly mounted on the travel motor 12. The L-shaped sliding block 92 is slidably mounted on the translation slide plate 21. The translation slide plate 21 is fixedly provided with a second central hole and a second through hole. The size of the second central hole is much larger than the size of the output shaft of the translation motor 22. The output shaft of the translation motor 22 passes through the second central hole and is fixedly connected to the translation gear 23. The L-shaped fixing block 91 is rotatably provided with a first screw and a screw hole. The end of the first screw abuts against the L-shaped sliding block 92. The L-shaped sliding block 92 is rotatably provided with a second screw, the end of which passes through the screw hole. Rotating the first screw clockwise causes the L-shaped sliding block 92 to slide backward and away from the L-shaped fixing block 91. At this time, the second screw cooperates with the first screw to rotate counterclockwise without affecting the sliding of the L-shaped sliding block 92. Conversely, rotating the second screw clockwise causes the L-shaped sliding block 92 to slide forward and approach the L-shaped fixed block 91 through the engagement of the screw hole. At this time, the first screw rotates counterclockwise in conjunction with the second screw, without affecting the sliding of the L-shaped sliding block 92. The L-shaped sliding block 92 is provided with a second oblong hole, through which the bolt passes and is fixedly connected to the nut. The size of the second oblong hole determines the fine-tuning range of the L-shaped sliding block 92 and the translation motor 22. Through the engagement of the first and second screws, the L-shaped sliding block 92 slides back and forth on the translation slide plate 21, and the position of the translation motor 22 is finely adjusted to ensure that the translation gear 23 and the translation rack 15 can always mesh.

[0047] In one possible implementation, each of the second displacement mechanisms 3 includes a vertical arm 31 and a lifting cylinder 32. The translation slide plate 21 is inverted L-shaped. The vertical arm 31 is slidably disposed on the side of the translation slide plate 21, and the lifting cylinder 32 is fixedly disposed on the side of the translation slide plate 21. The telescopic rod of the lifting cylinder 32 is fixedly connected to the vertical arm 31 and can drive it to slide up and down. When the lifting cylinder 32 is activated, it drives the vertical arm 31 to slide up and down, thereby driving the welding mechanism 4 to slide up and down, so that the welding mechanism 4 is aligned with the weld of the U-shaped beam.

[0048] Preferably, a lifting slider 212 is fixedly installed on the side of the translation slide plate 21, and a lifting guide rail 311 matching the lifting slider 212 is fixedly installed on the vertical arm 31. The lifting slider 212 is engaged with the lifting guide rail 311, and the lifting guide rail 311 slides relative to the lifting slider 212. When the lifting cylinder 32 is activated, driving the vertical arm 31 to slide up and down, the lifting guide rail 311 slides up and down relative to the lifting slider 212, ensuring greater stability when the vertical arm 31 slides up and down on the gantry frame 1.

[0049] In one possible implementation, each of the welding mechanisms 4 includes a welding seat 41 and two welding parts. The welding seat 41 is fixedly disposed at the bottom of the vertical arm 31. The two welding parts are symmetrically disposed on the welding seat 41 and slide relative to each other. Each welding part includes a gun seat 42, a clamping slide plate 43, and a welding gun 44. The gun seat 42 is slidably disposed on the welding seat 41 (the welding seat 41 is located at the bottom of the vertical arm 31 and away from the translation slide plate 21). The clamping slide plate 43 is slidably disposed on the gun seat 42 and is inclined. A clamping wheel 431 is rotatably disposed on the clamping slide plate 43. The welding gun 44 is adjustablely disposed on the gun seat 42. The head of the welding gun 44 is bent and located below the clamping wheel 431. The welding seat 41 and the two welding parts move to the top of the U-shaped beam. The two welding parts slide relative to each other and move away from each other, causing the two gun seats 42, the clamping wheels 431, and the welding gun 44 to move to both sides of the U-shaped beam. The two clamping slide plates 43 slide relative to each other, causing the two clamping wheels 431 to press against both sides of the U-shaped beam. The welding gun 44 is then aligned with the weld seam to complete the welding. The gantry frame 1 slides backward, the clamping wheels 431 rotate and slide on the U-shaped beam, and finally the welding gun 44 slides along the length of the U-shaped beam to complete the welding of the entire weld seam on both sides of the U-shaped beam.

[0050] Furthermore, a fifth shaft is fixedly provided at the end of the clamping slide plate 43 away from the clamping rack 432, and a fifth bearing is fixedly provided on the second shaft. The clamping wheel 431 is sleeved on the fifth bearing and can rotate, thus enabling the clamping wheel 431 to rotate.

[0051] In one possible implementation, each welding seat 41 is slidably provided with two opening and closing plates 45, and the two opening and closing plates 45 slide relative to each other. Each welding seat 41 is symmetrically provided with two opening and closing cylinders 46. The two opening and closing plates 45 are located outside the two opening and closing cylinders 46. The telescopic rod of each opening and closing cylinder 46 is fixedly connected to the opening and closing plate 45 and can drive it to slide left and right. Each opening and closing plate 45 is fixedly provided with a first slider 451. Each gun seat 42 is fixedly provided with a first guide rail 421 that matches the first slider 451. The first slider 451 is locked on the first guide rail 421 and the first guide rail 421 slides up and down relative to the first slider 451.

[0052] Preferably, each of the opening and closing plates 45 is fixedly provided with a second slider 452, and each of the welding seats 41 is fixedly provided with a second guide rail 411 that matches the second slider 452. The second slider 452 is engaged on the second guide rail 411 and slides on it to ensure that the opening and closing plate 45 slides stably.

[0053] Preferably, each gun holder 42 is rotatably equipped with a support wheel 422 at its bottom. When the gantry frame 1 slides back and forth, the support wheel 422 contacts the panel and slides back and forth on it. The support wheel 422 supports the welding mechanism 4, ensuring its stability. Furthermore, a sixth shaft is fixedly installed on the gun holder 42, a sixth bearing is fixedly installed on the sixth shaft, and the support wheel 422 is sleeved on the sixth bearing and can rotate.

[0054] In one possible implementation, each gun mount 42 is inclinedly provided with a mounting base 47, and a clamping cylinder 48 is fixedly mounted on the mounting base 47. The telescopic rod of the clamping cylinder 48 is fixedly connected to the clamping slide plate 43 and can drive it to slide left and right. The mounting base 47 is provided with a toothed groove, and the clamping slide plate 43 is fixedly provided with a clamping rack 432 that matches the toothed groove. The clamping rack 432 passes through the toothed groove and the two mesh. When the clamping cylinder 48 is activated, it drives the clamping slide plate 43 and the clamping rack 432 to slide left and right, ultimately driving the clamping wheel 431 to slide left and right, so that the clamping wheel 431 presses against the side of the U-shaped beam. Because the clamping rack 432 meshes with the toothed groove, the clamping rack 432 slides left and right relative to the toothed groove, i.e., the mounting base 47. The cooperation between the clamping rack 432 and the toothed groove keeps the clamping slide plate 43 stable during sliding.

[0055] In one possible implementation, each welding torch 44 is fixedly provided with a fixing seat 441, and each torch holder 42 is adjustablely provided with an adjusting block 49. Each fixing seat 441 is fixedly provided on the adjusting block 49. Each adjusting block 49 includes a first connecting plate 491 and a second connecting plate 492. The first connecting plate 491 and the second connecting plate 492 are circular. The first connecting plate 491 is fixedly provided on the torch holder 42, and the second connecting plate 492 is adjustablely provided on the first connecting plate 491. The second connecting plate 492 is fixedly provided on the first connecting plate 491 by bolts and nuts, and the second connecting plate 492 rotates relative to the first connecting plate 491. Preferably, the first connecting plate 491 is provided with an inner groove, the end of the bolt is engaged in the inner groove, and the first connecting plate 491 is provided with a connecting hole. The tail of the bolt passes through the connecting hole and is fixedly connected with the nut. A fixing rod 493 is fixedly mounted on the second connecting plate 492, and a fixing plate 442 is fixedly mounted on the fixing seat 441, with the fixing rod 493 passing through the fixing plate 442. The angle and position of the welding torch 44 can be adjusted by adjusting the adjusting block 49. The angle of the welding torch 44 is adjusted accordingly for welding equipment of different sizes to ensure that the welding torch 44 is aligned with the corresponding weld seam. By changing the position of the bolt fixed in the embedded groove, the position of the second connecting plate 492 locked to the first connecting plate 491 is changed. After the position of the second connecting plate 492 is changed, the angle and position of the fixing seat 441 fixed outside the second connecting plate 492 and the welding torch 44 are adjusted accordingly.

[0056] In one possible implementation, multiple wire drums 6 are fixedly installed on the top of the gantry frame 1, and two wire feeders 7 are fixedly installed on each vertical arm 31. Each wire feeder 7 is used to feed the welding wire in the wire drum 6 to the welding torch 44. The structure of the wire feeder 7 is prior art and will not be described in detail here. The welding wire in the wire drum 6 is guided onto the wire feeder 7, which then guides the welding wire into the welding torch 44. The wire feeder 7 does not stop feeding wire while the welding torch 44 is in operation.

[0057] In one possible implementation, the top of the gantry frame 1 is provided with a pedestrian crossing 17 and a guardrail 18, and the wire spool 6 is located at the pedestrian crossing 17. A staircase 19 is inclinedly arranged on the side of the gantry frame 1, with the bottom of the staircase 19 extending to the location of the base 5. People can enter the pedestrian crossing 17 via the staircase 19 to periodically replace the wire spool 6 or add welding wire to it. The guardrail 18 protects people.

[0058] The welding equipment operates as follows: The gantry frame 1 slides to the welding starting point of the U-shaped beam. The translation motor 22 starts, driving the translation gear 23 to rotate. The translation gear 23 moves left and right along the translation rack 15. After the translation gear 23 moves left and right, it drives the translation slide plate 21 to slide left and right on the gantry frame 1, aligning the vertical arm 31 and welding mechanism 4 with the U-shaped beam. The lifting cylinder 32 starts, driving the vertical arm 31 to slide downwards, which in turn drives the welding mechanism 4 to slide downwards. Simultaneously, the two opening and closing cylinders 46 start, driving the two opening and closing plates 45 to slide relative to each other. The two gun holders 42, the clamping wheel 431, and the welding gun 44 move to both sides of the U-shaped beam. Simultaneously, the clamping cylinder 48 starts, driving the clamping slide plate 43 and the clamping rack 432 to slide left and right, ultimately causing the clamping wheel 431 to slide left and right, pressing against the side of the U-shaped beam, ensuring that the welding gun 44 can be aligned with the weld seam to complete the welding. The walking motor 12 starts, driving the guide gear 14 to rotate. The guide gear 14 moves backward along the guide rack 52. After the guide gear 14 moves backward, it drives the walking wheel 13 to rotate on the top of the support rail 51 to move backward until the gantry walking frame 1 slides to the welding stop point of the U-shaped beam. Finally, the welding torch 44 slides along the length of the U-shaped beam and welds the entire weld seam on both sides of the U-shaped beam.

[0059] The embodiments described above are merely preferred embodiments of this utility model and are only used to explain this utility model. They are not intended to limit the scope of implementation of this utility model. For those skilled in the art, other implementation methods can be easily made by substitution or modification based on the technical content disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A welding apparatus for a U-beam, characterized by comprising: The system includes a gantry frame (1), multiple first displacement mechanisms (2), second displacement mechanisms (3), and a welding mechanism (4). The gantry frame (1) is slidably mounted on the working ground. Multiple first displacement mechanisms (2) are slidably mounted on the top of the gantry frame (1). Multiple first displacement mechanisms (2) are arranged sequentially along the length of the gantry frame (1). Multiple second displacement mechanisms (3) are slidably mounted on multiple first displacement mechanisms (2). Each second displacement mechanism (3) is arranged along the height of the gantry frame (1). Multiple welding mechanisms (4) are movably mounted on multiple second displacement mechanisms (3).

2. The welding equipment for U-shaped beams according to claim 1, characterized in that, Two bases (5) are arranged opposite each other on the working ground. Each base (5) is fixedly provided with a support rail (51). Both ends of the lower part of the gantry walking frame (1) are provided with walking parts, and each walking part is slidably arranged on the support rail (51).

3. The welding equipment for U-shaped beams according to claim 2, characterized in that, Each of the aforementioned walking parts includes a walking cover (11), a walking motor (12), and a walking wheel (13). The walking cover (11) is fixedly installed at the lower end of the gantry walking frame (1). The walking motor (12) is adjustablely installed on the walking cover (11). The output shaft of the walking motor (12) is fixedly connected to the guide gear (14) and can drive it to rotate. A guide rack (52) matching the guide gear (14) is fixedly installed on the support rail (51). The guide gear (14) meshes with the guide rack (52). The walking wheel (13) is rotatably installed on the walking cover (11). The walking wheel (13) contacts the support rail (51) and slides back and forth on it.

4. The welding equipment for U-shaped beams according to claim 1, characterized in that, Each of the first displacement mechanisms (2) includes a translation slide plate (21) and a translation motor (22). The translation slide plate (21) is slidably mounted on the top of the gantry frame (1). The translation motor (22) is adjustablely mounted on the translation slide plate (21). The output shaft of the translation motor (22) passes through the translation slide plate (21) and is fixedly connected to the translation gear (23) and can drive it to rotate. The top of the gantry frame (1) is fixedly mounted with a translation rack (15) that matches the translation gear (23). The translation gear (23) meshes with the translation rack (15).

5. The welding equipment for U-shaped beams according to claim 4, characterized in that, Each of the second displacement mechanisms (3) includes a vertical arm (31) and a lifting cylinder (32). The translation slide plate (21) is inverted L-shaped. The vertical arm (31) is slidably disposed on the side of the translation slide plate (21). The lifting cylinder (32) is fixedly disposed on the side of the translation slide plate (21). The telescopic rod of the lifting cylinder (32) is fixedly connected to the vertical arm (31) and can drive it to slide up and down.

6. The welding equipment for U-shaped beams according to claim 5, characterized in that, Each of the welding mechanisms (4) includes a welding seat (41) and two welding parts. The welding seat (41) is fixedly mounted on the bottom of the vertical arm (31). The two welding parts are symmetrically mounted on the welding seat (41) and slide relative to each other. Each welding part includes a gun seat (42), a clamping slide plate (43), and a welding gun (44). The gun seat (42) is slidably mounted on the welding seat (41). The clamping slide plate (43) is slidably mounted on the gun seat (42) and is inclined. A clamping wheel (431) is rotatably mounted on the clamping slide plate (43). The welding gun (44) is adjustablely mounted on the gun seat (42). The head of the welding gun (44) is bent and located below the clamping wheel (431).

7. The welding equipment for U-shaped beams according to claim 6, characterized in that, Each welding seat (41) is slidably provided with two opening and closing plates (45) and the two opening and closing plates (45) slide relative to each other. Each welding seat (41) is symmetrically provided with two opening and closing cylinders (46). The two opening and closing plates (45) are located outside the two opening and closing cylinders (46). The telescopic rod of each opening and closing cylinder (46) is fixedly connected to the opening and closing plate (45) and can drive it to slide left and right. Each opening and closing plate (45) is fixedly provided with a first slider (451). Each gun seat (42) is fixedly provided with a first guide rail (421) that matches the first slider (451). The first slider (451) is stuck on the first guide rail (421) and the first guide rail (421) slides up and down relative to the first slider (451).

8. The welding equipment for U-shaped beams according to claim 6, characterized in that, Each gun mount (42) is provided with an inclined mounting base (47), and a clamping cylinder (48) is fixedly mounted on the mounting base (47). The telescopic rod of the clamping cylinder (48) is fixedly connected to the clamping slide plate (43) and can drive it to slide left and right. The mounting base (47) is provided with a toothed groove, and a clamping rack (432) matching the toothed groove is fixedly mounted on the clamping slide plate (43). The clamping rack (432) passes through the toothed groove and the two mesh with each other.

9. The welding equipment for U-shaped beams according to claim 6, characterized in that, Each welding torch (44) is fixedly provided with a fixing seat (441), each torch holder (42) is adjustablely provided with an adjusting block (49), and each fixing seat (441) is fixedly provided on the adjusting block (49); each adjusting block (49) includes a first connecting plate (491) and a second connecting plate (492), the first connecting plate (491) is fixedly provided on the torch holder (42), the second connecting plate (492) is adjustablely provided on the first connecting plate (491), a fixing rod (493) is fixedly provided on the second connecting plate (492), the fixing seat (441) is fixedly provided with the fixing plate (442), and the fixing rod (493) passes through the fixing plate (442).

10. The welding equipment for U-shaped beams according to claim 6, characterized in that, The top of the gantry walking frame (1) is fixedly equipped with multiple wire drums (6), and each vertical arm (31) is fixedly equipped with two wire feeders (7). Each wire feeder (7) is used to feed the welding wire in the wire drum (6) to the welding gun (44).

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