Rectangular air pipe straight seam welding device

Abstract

The utility model relates to the technical field of straight seam welding, in particular to a rectangular air duct straight seam welding device which reduces deformation, improves welding quality and improves operation efficiency. Comprising a support, a fixing mechanism, a conveying mechanism and a welding mechanism, the support comprises a front end plate and a rear end plate which are arranged in parallel at intervals, a workbench is arranged between the front end plate and the rear end plate, the conveying mechanism and the welding mechanism are arranged on the workbench in parallel, a conveying opening is formed in the front end plate, and the conveying mechanism extends to the outer side of the front end plate through the conveying opening; the fixing mechanism is arranged on the inner side of the rear end plate; the fixing mechanism comprises a first driving motor, a second driving motor is arranged at the output end of the first driving motor, and an inner supporting assembly is arranged at the output end of the second driving motor and used for supporting the inner wall of the rectangular air pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of straight seam welding, in particular to a straight seam welding device for rectangular air ducts. Background Technique

[0002] Air ducts are mostly used in pipeline systems for air transportation and distribution. According to the cross-sectional shape, air ducts can be divided into circular air ducts, rectangular air ducts, oval air ducts, etc. Among them, rectangular air ducts are widely used in fields such as food processing, machinery manufacturing, pharmaceutical products, electronics industry, shopping malls, etc. During the production process of air ducts, the plates need to be cut according to the design requirements first, and then the sides and bottoms of the air ducts are formed by folding on a folding machine. Then, the folded edges are connected by argon arc welding or laser welding to form a rectangular pipe body. In the past, this welding step was usually carried out by manual welding. With the progress and development of technology, welding devices have gradually replaced manual labor.

[0003] When the existing welding device is used for welding and processing rectangular air ducts, since the air ducts are generally thin, they are prone to deformation due to uneven stress, which increases the difficulty of welding and reduces the welding efficiency at the same time. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a straight seam welding device for rectangular air ducts that reduces deformation, improves welding quality, and enhances operation efficiency.

[0005] A straight seam welding device for rectangular air ducts of the utility model includes a bracket, a fixing mechanism, a conveying mechanism, and a welding mechanism;

[0006] The bracket includes a front end plate and a rear end plate that are parallel and spaced apart. A workbench is arranged between the front end plate and the rear end plate. The conveying mechanism and the welding mechanism are arranged in parallel on the workbench. A conveying port is arranged on the front end plate. The conveying mechanism extends to the outside of the front end plate through the conveying port. The fixing mechanism is arranged inside the rear end plate;

[0007] The fixing mechanism includes a driving motor I. The output end of the driving motor I is provided with a driving motor II. The output end of the driving motor II is provided with an inner support assembly, and the inner support assembly is used to support the inner wall of the rectangular air duct;

[0008] The inner support assembly includes two parallel and spaced apart fixing plates, a right-angle support, and an inner edge support. The two fixing plates are fixedly connected by support columns. A plurality of right-angle supports and inner edge supports are fixed to the inner side of the fixing plates by fixing members and are evenly distributed in a circumferential manner;

[0009] The right-angle support member includes a driving motor three and an inner-angle support plate. A driving block one is provided at the output end of the driving motor three. A slide rail one is provided on the inner-angle support plate. A driving motor four is fixed on the slide rail one through a fixing member. A driving screw rod one parallel to the driving motor four is provided at the output end of the driving motor four. The driving screw rod one penetrates through the driving block one and is screwed with the driving block one. A groove corresponding to the slide rail one is provided at the bottom end of the driving block one.

[0010] Further, the inner-edge support member includes a driving motor five. A connecting plate is provided at the output end of the driving motor five. An inner-edge support plate is provided on the connecting plate.

[0011] Further, avoiding holes are symmetrically provided on both sides of the connecting plate, and the avoiding holes correspond to the driving motor four.

[0012] Further, a limiting plate is provided on the driving motor two. Moving plates are symmetrically provided at both ends of the limiting plate. Sliders are provided at the bottoms of the moving plates. Slide grooves corresponding to the sliders are provided on the rear end plate.

[0013] Further, the fixing mechanism further includes an outer support assembly. The outer support assembly includes an outer-angle support plate and a fixing beam. The outer-angle support plates are symmetrically provided on both sides of the conveying mechanism. The fixing beam is provided at the tops of the front end plate and the rear end plate. An installation groove is provided inside the workbench. A driving motor six is provided on the side wall of the installation groove. A driving screw rod two is provided at the output end of the driving motor six. Two threads with opposite directions are provided on the driving screw rod two. A driving block two is provided at the bottom of the outer-angle support plate. The driving block two is screwed with the driving screw rod two, and the driving blocks two on both sides are respectively located on the two threads. A driving motor seven is provided at the bottom of the fixing beam. A top-edge fixing plate is provided at the output end of the driving motor seven.

[0014] Further, a right-angle portion is provided on the outer-angle support plate, and the horizontal top surface of the right-angle portion is on the same horizontal plane as the conveying surface of the conveying mechanism.

[0015] Further, a rubber pad is provided on the contact surface between the fixing mechanism and the rectangular air duct.

[0016] Further, the welding mechanism includes a moving seat, a support arm and a welding torch. A slide rail two is provided between the front end plate and the rear end plate. The moving seat is slidably provided on the slide rail two. The support arm is provided on the moving seat. The welding torch is provided at the end of the support arm.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] By driving the first driving motor and the second driving motor, the inner support assembly can accurately support the inner wall of the rectangular air duct, effectively preventing the deformation of the air duct during the welding process due to heat and external forces, ensuring the dimensional accuracy of welding, ensuring the flatness and strength of the joint, and improving the welding quality; through the design of the conveying mechanism, the rectangular air duct is conveyed in the device, reducing the time consumption of manual handling and positioning, and improving the overall welding efficiency; compared with manual welding, this device operates through the welding mechanism, reducing the risk of operators directly contacting the welding environment such as high temperature and strong light, and improving the safety of the workplace. Brief Description of the Drawings

[0019] The following further describes the present utility model with reference to the drawings.

[0020] Figure 1 is the structural schematic diagram of the present utility model;

[0021] Figure 2 is the sectional structural schematic Figure 1 ;

[0022] Figure 3 is the sectional structural schematic Figure 2 ;

[0023] Figure 4 is the structural schematic diagram of the inner support assembly of the present utility model;

[0024] Reference numerals in the drawings: 1, fixing mechanism; 2, conveying mechanism; 3, welding mechanism; 4, front end plate; 5, rear end plate; 6, workbench; 7, conveying port; 8, first driving motor; 9, second driving motor; 10, inner support assembly; 11, fixing plate; 12, support column; 13, fixing member; 14, third driving motor; 15, inner corner support plate; 16, first driving block; 17, first slide rail; 18, fourth driving motor; 19, first driving screw; 20, fifth driving motor; 21, connecting plate; 22, inner side support plate; 23, avoidance hole; 24, limiting plate; 25, moving plate; 26, chute; 27, outer corner support plate; 28, second driving block; 29, installation groove; 30, sixth driving motor; 31, second driving screw; 32, moving seat; 33, support arm; 34, welding torch; 35, second slide rail; 36, fixing beam; 37, seventh driving motor; 38, top edge fixing plate. Detailed Description of the Preferred Embodiments

[0025] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0026] As Figures 1 to 4As shown in the figure, a rectangular air duct straight seam welding device of the present utility model includes a bracket, a fixing mechanism 1, a conveying mechanism 2 and a welding mechanism 3;

[0027] The bracket includes a front end plate 4 and a rear end plate 5 which are parallel and spaced apart. A workbench 6 is arranged between the front end plate 4 and the rear end plate 5. The conveying mechanism 2 and the welding mechanism 3 are arranged in parallel on the workbench 6. A conveying port 7 is arranged on the front end plate 4, and the conveying mechanism 2 extends to the outside of the front end plate 4 through the conveying port 7. The fixing mechanism 1 is arranged inside the rear end plate 5;

[0028] The fixing mechanism 1 includes a driving motor 1 8. The output end of the driving motor 1 8 is provided with a driving motor 2 9. The output end of the driving motor 2 9 is provided with an inner support assembly 10, and the inner support assembly 10 is used to support the inner wall of the rectangular air duct;

[0029] By driving the inner support assembly 10 with the driving motor 1 8 and the driving motor 2 9, the inner wall of the rectangular air duct can be accurately supported, effectively preventing the deformation of the air duct during the welding process due to heat and external forces, ensuring the dimensional accuracy of the welding, ensuring the flatness and strength of the joint, and improving the welding quality; Through the design of the conveying mechanism 2, the rectangular air duct is realized to be conveyed in the device, reducing the time consumption of manual handling and positioning, and improving the overall welding efficiency; Compared with manual welding, this device operates through the welding mechanism 3, reducing the risk of operators directly contacting the welding environment such as high temperature and strong light, and improving the safety of the workplace;

[0030] In the embodiment of the present application, the inner support assembly 10 includes two parallel and spaced apart fixing plates 11, a right-angle support member and an inner-edge support member. The two fixing plates 11 are fixedly connected by a support column 12. A plurality of right-angle support members and inner-edge support members are fixed to the inner side of the fixing plate 11 through a fixing member 13 and are evenly distributed in a circumferential manner; By connecting two parallel fixing plates 11 and a support column 12, a stable frame structure is formed, providing a solid foundation for the entire inner support assembly. The right-angle support member and the inner-edge support member provide point-to-point accurate support for the four corners and the inner wall of the rectangular air duct, ensuring that the internal pressure change caused by heat can be effectively resisted during the welding process, reducing the deformation of the air duct, making the welding process smoother, improving the one-time success rate of welding, reducing the workload, and thus improving the overall welding efficiency and the quality of the final product;

[0031] In an embodiment of the present application, the right-angle support member includes a third driving motor 14 and an inner-angle support plate 15. A driving block 16 is provided at the output end of the third driving motor 14. A first slide rail 17 is provided on the inner-angle support plate 15. A fourth driving motor 18 is fixed on the first slide rail 17 through a fixing member. A first driving screw 19 parallel to the fourth driving motor 18 is provided at the output end of the fourth driving motor 18. The first driving screw 19 penetrates through the driving block 16 and is screwed with the driving block 16. A groove corresponding to the first slide rail 17 is provided at the bottom end of the driving block 16. Through the design of the third driving motor 14, the fourth driving motor 18, the driving block 16 and the first driving screw 19, the inner-angle support plate 15 can be adjusted according to the actual size of the air duct, ensuring that the support angle fits the inner angle of the air duct and enhancing the resistance to the deformation of the air duct.

[0032] As a preference of the above embodiment, the inner-edge support member includes a fifth driving motor 20. A connecting plate 21 is provided at the output end of the fifth driving motor 20. An inner-edge support plate 22 is provided on the connecting plate 21. Through the fifth driving motor 20, the inner-edge support member can be adjusted according to the actual size of the air duct, ensuring that the support edge fits the inner wall of the air duct and enhancing the resistance to the deformation of the air duct.

[0033] As a preference of the above embodiment, avoiding holes 23 are symmetrically provided on both sides of the connecting plate 21 and correspond to the fourth driving motor 18. Through the avoiding holes 23, the fourth driving motor 18 and the connecting plate 21 will not obstruct each other, reducing potential mechanical interference and wear and prolonging the service life of the device.

[0034] As a preference of the above embodiment, a limiting plate 24 is provided on the second driving motor 9. Moving plates 25 are symmetrically provided at both ends of the limiting plate 24. Sliders are provided at the bottom of the moving plates 25. A sliding groove 26 corresponding to the sliders is provided on the rear end plate 5. Through the limiting plate 24, the position of the rectangular air duct conveyed on the conveying mechanism 2 is controlled to ensure that the rectangular air duct is at a position suitable for the operation of the fixing mechanism 1 and the welding mechanism 3.

[0035] As a preference of the above - mentioned embodiment, the fixing mechanism 1 further includes an outer support assembly. The outer support assembly includes an outer - angle support plate 27 and a fixing beam 36. The outer - angle support plates 27 are symmetrically arranged on both sides of the conveying mechanism 2, and the fixing beam 36 is arranged at the top ends of the front end plate 4 and the rear end plate 5. An installation groove 29 is arranged in the workbench 6. A driving motor six 30 is arranged on the side wall of the installation groove 29. The output end of the driving motor six 30 is provided with a driving screw two 31. Two threads with opposite directions are arranged on the driving screw two 31. A driving block two 28 is arranged at the bottom of the outer - angle support plate 27. The driving block two 28 is screwed with the driving screw two 31, and the driving blocks two 28 on both sides are respectively located on the two threads. A driving motor seven 37 is arranged at the bottom of the fixing beam 36. The output end of the driving motor seven 37 is provided with a top - edge fixing plate 38. The outer support assembly is used to achieve the full - surface fixation of the outer wall of the rectangular air duct. Acting together with the inner support assembly, it can effectively resist the internal and external stresses during the welding process, reduce the overall deformation of the air duct, and improve the welding quality. Through the combination of the driving motor six 30 and the driving screw two 31, the outer - angle support plate 27 can adapt to air ducts of different widths and provide support for both sides of the rectangular air duct. The design of the driving motor seven 37 and the top - edge fixing plate 38 provides fixed support for the top of the rectangular air duct to ensure that the top is straight.

[0036] As a preference of the above - mentioned embodiment, a right - angle part is arranged on the outer - angle support plate 27. The horizontal top surface of the right - angle part is on the same horizontal plane as the conveying surface of the conveying mechanism 2. Through this design, it is ensured that the outer - angle support plate 27 fits with the corners of the rectangular air duct conveyed on the conveying mechanism 2, ensuring accurate positioning of the air duct.

[0037] As a preference of the above - mentioned embodiment, a rubber pad is arranged on the contact surface between the fixing mechanism 1 and the rectangular air duct. The rubber pad has good buffering and anti - wear characteristics. Through the rubber pad, it can effectively prevent the surface of the metal air duct from being scratched or worn during the support and fixation process, protecting the integrity of the appearance of the air duct. The rubber material has a relatively good friction coefficient, increasing the friction force between the air duct and the support surface, preventing the air duct from sliding, ensuring the accuracy of the welding position, and avoiding welding misalignment.

[0038] Preferably, as in the above embodiment, the welding mechanism 3 includes a moving base 32, a support arm 33 and a welding torch 34. A second slide rail 35 is provided between the front end plate 4 and the rear end plate 5. The moving base 32 is slidably arranged on the second slide rail 35. The support arm 33 is arranged on the moving base 32, and the welding torch 34 is arranged at the end of the support arm 33. Through the sliding design of the moving base 32 along the second slide rail 35, the welding torch 34 moves along the length direction of the rectangular air duct, ensuring that the welding torch can accurately reach the position required for welding. The support arm 33, as the support structure of the welding torch 34, stabilizes the position of the welding torch, reduces the welding quality problems caused by hand shaking or other unstable factors during the welding process, ensures the uniformity and beauty of each weld seam, and improves the overall quality of the welded product. Through the moving base 32 and the second slide rail 35, the positioning and movement during the welding process become more rapid and accurate, shortening the welding preparation time and the welding cycle, thereby improving the overall operation efficiency.

[0039] When the rectangular air duct straight seam welding device of the present invention is working, first place the rectangular air duct to be welded on the conveying mechanism 2, make the straight seam to be welded parallel to the conveying direction, start the conveying mechanism 2, send the air duct into the device, and stop conveying when the front end of the air duct contacts the limit plate 24; start the fixing mechanism 1, the driving motor 8 drives the driving motor 9 and the inner support assembly 10 to move downward until the inner support assembly 10 is aligned with the center of the rectangular air duct. The driving motor 14 drives the driving block 16 to move along the output direction, the driving motor 18 drives the driving screw 19 to rotate, so that the inner angle support plate 15 fits with the inner angle of the air duct, the driving motor 20 drives the connecting plate 21 to move, so that the inner side support plate 22 fits with the inner wall of the air duct, the driving motor 30 drives the driving screw 31 to rotate, so that the outer angle support plates 27 move towards each other until they fit with the outer angle of the air duct, and the driving motor 37 drives the top edge fixing plate 38 to move downward until it fits with the top of the air duct; the moving base 32 moves along the second slide rail 35 to the starting point, the support arm 33 bends to make the welding torch 34 close to the straight seam to be welded on the air duct, and continuous welding begins.

[0040] The installation method, connection method or setting method of the rectangular air duct straight seam welding device of the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0041] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A rectangular air duct straight seam welding device, characterized in that It includes a bracket, a fixing mechanism (1), a conveying mechanism (2) and a welding mechanism (3); The bracket includes a front end plate (4) and a rear end plate (5) which are parallel and spaced apart. A workbench (6) is arranged between the front end plate (4) and the rear end plate (5). The conveying mechanism (2) and the welding mechanism (3) are arranged in parallel on the workbench (6). A conveying port (7) is arranged on the front end plate (4). The conveying mechanism (2) extends to the outside of the front end plate (4) through the conveying port (7). The fixing mechanism (1) is arranged inside the rear end plate (5); The fixing mechanism (1) includes a driving motor one (8). The output end of the driving motor one (8) is provided with a driving motor two (9). The output end of the driving motor two (9) is provided with an inner support assembly (10). The inner support assembly (10) is used to support the inner wall of the rectangular air duct; The inner support assembly (10) includes two parallel and spaced apart fixing plates (11), a right-angle support and an inner-side support. The two fixing plates (11) are fixedly connected by a support column (12). A plurality of the right-angle supports and inner-side supports are fixed to the inner side of the fixing plates (11) by fixing members (13) and are evenly distributed in a circumferential manner; The right-angle support includes a driving motor three (14) and an inner-angle support plate (15). The output end of the driving motor three (14) is provided with a driving block one (16). A slide rail one (17) is arranged on the inner-angle support plate (15). A driving motor four (18) is fixed on the slide rail one (17) by a fixing member. The output end of the driving motor four (18) is provided with a driving screw one (19) which is parallel to the driving motor four (18). The driving screw one (19) penetrates through the driving block one (16) and is screwed with the driving block one (16). A groove corresponding to the slide rail one (17) is arranged at the bottom of the driving block one (16).

2. The rectangular air duct straight seam welding device according to claim 1, characterized in that, The inner-side support includes a driving motor five (20). The output end of the driving motor five (20) is provided with a connecting plate (21). An inner-side support plate (22) is arranged on the connecting plate (21).

3. The rectangular air duct straight seam welding device according to claim 2, wherein Avoidance holes (23) are symmetrically arranged on both sides of the connecting plate (21). The avoidance holes (23) correspond to the driving motor four (18).

4. The rectangular air duct straight seam welding device according to claim 1, characterized in that, A limiting plate (24) is arranged on the driving motor two (9). Moving plates (25) are symmetrically arranged at both ends of the limiting plate (24). Sliders are arranged at the bottoms of the moving plates (25). A chute (26) corresponding to the sliders is arranged on the rear end plate (5).

5. The rectangular air duct straight seam welding device according to claim 1, characterized in that, The fixing mechanism (1) further includes an outer support assembly, and the outer support assembly includes an outer corner support plate (27) and a fixing beam (36). The outer corner support plates (27) are symmetrically arranged on both sides of the conveying mechanism (2), and the fixing beam (36) is arranged at the tops of the front end plate (4) and the rear end plate (5). An installation groove (29) is arranged in the workbench (6), a driving motor six (30) is arranged on the side wall of the installation groove (29), a driving screw rod two (31) is arranged at the output end of the driving motor six (30), two sections of threads with opposite directions are arranged on the driving screw rod two (31), a driving block two (28) is arranged at the bottom of the outer corner support plate (27), the driving block two (28) is screwed with the driving screw rod two (31), and the driving blocks two (28) on both sides are respectively located on the two sections of threads. A driving motor seven (37) is arranged at the bottom of the fixing beam (36), and a top edge fixing plate (38) is arranged at the output end of the driving motor seven (37).

6. The rectangular air duct straight seam welding device according to claim 5, characterized in that, A right-angle part is arranged on the outer corner support plate (27), and the horizontal top surface of the right-angle part is on the same horizontal plane as the conveying surface of the conveying mechanism (2).

7. The rectangular air duct straight seam welding device according to claim 1, characterized in that, A rubber pad is arranged on the contact surface between the fixing mechanism (1) and the rectangular air duct.

8. The rectangular air duct straight seam welding device according to claim 1, characterized in that, The welding mechanism (3) includes a moving seat (32), a support arm (33) and a welding torch (34). A slide rail two (35) is arranged between the front end plate (4) and the rear end plate (5), the moving seat (32) is slidably arranged on the slide rail two (35), the support arm (33) is arranged on the moving seat (32), and the welding torch (34) is arranged at the end of the support arm (33).

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