A welding apparatus for processing a ventilation duct

Abstract

The utility model discloses a kind of welding equipment for ventilation duct processing, belong to ventilation duct processing technical field, including base and the horizontal plate of even fixed connection in the top of base, first sliding groove is rotatably connected with double thread rod, and the both ends of double thread rod are all threadedly connected with first slider, and the top of first slider is fixedly connected with T-shaped block, and T-shaped block is movably connected with vertical plate, and the top of vertical plate is fixedly connected with compression ring, and the both sides of horizontal plate top are all fixedly connected with the buffer assembly for supporting, and the top of buffer assembly is provided with support plate, and second sliding groove is fixedly connected with slide bar, and the outer wall of slide bar is sleeved with second slider, and the top of second slider is fixedly connected with placing block.The ventilation duct processing welding equipment, through the thread connection of double thread rod and first slider, can drive both sides vertical plate and compression ring synchronous opening and closing, cooperate with the arc-shaped groove in the top of placing block, can adapt to the circular ventilation duct of different pipe diameter, avoid the problem of fixed size limitation.

Description

Technical Field

[0001] This utility model relates to the field of ventilation duct processing technology, specifically a welding equipment for ventilation duct processing. Background Technology

[0002] Welding of ventilation ducts is a critical step in duct installation. Depending on the material (e.g., galvanized steel sheet, stainless steel), argon arc welding or shielded metal arc welding (SMAW) should be selected. During welding, it is essential to ensure smooth joints to prevent air leakage and control thermal deformation. Welders must be certified, and post-weld tests, including pressure and airtightness checks, are conducted to ensure the efficient and safe operation of the ventilation system. This method is widely used in building and industrial ventilation projects.

[0003] For example, patent CN117161634A discloses a stainless steel air conditioning ventilation duct welding equipment, belonging to the technical field of pipe welding equipment. It includes a base, a lifting worktable, a top-lifting worktable, an auxiliary track mechanism, a cutting component, a support plate, and a mobile lifting vehicle. The base is equipped with a lifting worktable, and the top of the lifting worktable is equipped with a top-lifting worktable. An auxiliary track mechanism is slidably connected to the front and rear sides of the top-lifting worktable. Cutting components are slidably connected to both sides of the lifting worktable. Support plates are hinged to both sides of the base, and a mobile lifting vehicle is fixedly connected to the bottom of the base. However, existing devices have limitations in fixing the dimensions of ventilation ducts, typically only suitable for pipes within a specific diameter range. Stable clamping is difficult when dealing with large-diameter or irregularly shaped pipes. Furthermore, welding operations often only allow welding on one side of the pipe's outer wall. When welding the other side or inner wall joints is required, the pipe's placement angle must be manually readjusted and it must be fixed a second time. This not only increases the number of operation steps and labor intensity but also easily leads to errors due to repeated positioning, seriously affecting welding accuracy and consistency.

[0004] Therefore, in order to solve such problems, we propose a welding equipment for the processing of ventilation ducts. Utility Model Content

[0005] The purpose of this utility model is to provide a welding device for processing ventilation ducts, so as to solve the problem that the existing devices mentioned in the background art have limited fixed dimensions for ventilation ducts. They can usually only be used for pipes within a specific diameter range. When facing large-diameter or irregularly shaped pipes, it is difficult to achieve stable clamping. In addition, during welding operations, welding can often only be performed on the outer wall of one side of the pipe. When welding the other side or the inner wall joint is required, the pipe placement angle must be manually readjusted and fixed a second time. This not only increases the operation steps and labor intensity, but also easily causes errors due to repeated positioning, which seriously affects the welding accuracy and consistency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding device for processing ventilation ducts, comprising a base and a horizontal plate uniformly fixedly connected to the top of the base. A first groove is provided on the top of the horizontal plate, and a double threaded rod is rotatably connected in the first groove. A first motor is fixedly connected to the front end of the double threaded rod, and a first slider is threadedly connected to both ends of the double threaded rod. A T-shaped block is fixedly connected to the top of the first slider, and a vertical plate is movably connected to the T-shaped block. A pressure ring is fixedly connected to the top of the vertical plate. Buffer components for support are fixedly connected to both sides of the top of the horizontal plate. A support plate is provided on the top of the buffer components, and a second groove is provided on the top of the support plate. A slide rod is fixedly connected in the second groove, and a second slider is sleeved on the outer wall of the slide rod. A return spring is sleeved on the outer wall of the slide rod, and the inner end of the return spring is fixedly connected to the outer end of the second slider. A placement block is fixedly connected to the top of the second slider, and an arc-shaped groove is provided on the top of the placement block.

[0007] Furthermore, the buffer assembly includes a telescopic rod fixedly connected to the top of the cross plate, and a buffer spring is sleeved on the outer wall of the telescopic rod.

[0008] Furthermore, a connector is fixedly connected to the inner wall of the upright plate, and the connector is movably connected to the support plate.

[0009] Furthermore, the inner wall of the pressure ring is uniformly and fixedly connected to the arc-shaped groove at the top of the placement block with anti-slip blocks, and the anti-slip blocks are spherical protrusions.

[0010] Furthermore, the front end of the double-threaded rod extends to the outside of the front outer wall of the cross plate, and a pulley is fixedly connected to the front end of the double-threaded rod, with a belt sleeved on the outer wall of the pulley.

[0011] Furthermore, a fixing plate is fixedly connected to the middle of the top surface of the base, and a support column is evenly fixedly connected to the top of the fixing plate. A mounting ring is fixedly connected to the top of the support column. A toothed ring is provided on the inner wall of the mounting ring, and a welded part is fixedly connected to the inner wall of the toothed ring. A fixing member is fixedly connected to the front of the top of the fixing plate, and a rotating shaft is rotatably connected to the fixing member. A second motor is fixedly connected to the right end of the rotating shaft, and a gear is fixedly connected to the rotating shaft, and the gear meshes with the toothed ring.

[0012] Furthermore, a limiting groove is formed on the inner wall of the mounting ring, and limiting blocks are fixedly connected to both outer walls of the toothed ring. The mounting ring and the toothed ring are rotatably connected to the limiting blocks through the limiting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: a welding equipment for processing ventilation ducts adopts a novel structural design, the specific details of which are as follows:

[0014] (1) The welding equipment for processing ventilation ducts can precisely drive the two vertical plates and pressure ring to achieve synchronous opening and closing through the threaded connection between the double threaded rod and the first slider. This structure, combined with the arc-shaped groove on the top of the placement block, can flexibly adapt to circular ventilation ducts of different diameters, fundamentally solving the problem of the fixed size limitation of traditional equipment and its ability to adapt to only a specific range of pipe diameters. At the same time, the placement block is connected to the sliding rod through the second slider, and its reset spring can automatically adjust the spacing according to the pipe diameter, further enhancing the device's adaptability to clamping irregular or large-diameter pipes and ensuring that pipes of different specifications can be placed stably. In addition, the inner wall of the pressure ring and the groove of the placement block are equipped with spherical anti-slip blocks. This type of protruding structure can effectively increase the friction with the pipe surface, prevent the pipe from shifting or sliding during the welding process, significantly improve the fixing stability, and provide a reliable guarantee for the accurate performance of welding operations.

[0015] (2) The welding equipment for processing ventilation ducts allows the welded parts to rotate stably around the mounting ring under the drive of the second motor through the meshing transmission relationship between the toothed ring and the gear. This enables 360° all-round welding operations on the outer wall, inner wall and joints of the duct. This design eliminates the need for manual adjustment of the duct angle, greatly reduces the number of operation steps and effectively reduces labor intensity. At the same time, the toothed ring and the mounting ring form a reliable guide and limit structure through the precise cooperation of the limit groove and the limit block. This structure can strictly constrain the rotation trajectory of the toothed ring and ensure that the welded parts maintain accurate positioning during rotation. This avoids positioning errors caused by repeated adjustments from the root, and significantly improves the accuracy of welding operations and the consistency of product quality.

[0016] Furthermore, the buffer assembly consists of a telescopic rod and a buffer spring. During pipe clamping, the two work together to effectively absorb the impact force generated during clamping. The elastic buffer prevents the pipe from deforming due to rigid compression, thus providing reliable protection for the pipe. At the same time, the vertical plate forms a linkage structure with the support plate through connectors. When the pressure ring is opened and closed, the support plate will adjust its angle synchronously to ensure that the force is uniform at each contact point of the pipe during clamping. This further improves the stability of the overall structure of the equipment and provides a more reliable support foundation for welding operations. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is an exploded view of the horizontal plate of this utility model;

[0020] Figure 4 This is an exploded schematic diagram of the pressure ring of this utility model;

[0021] Figure 5 This is an exploded view of the placement block of this utility model;

[0022] Figure 6 This is an exploded view of the toothed ring of this utility model.

[0023] In the diagram: 1. Horizontal plate; 11. Double threaded rod; 12. T-shaped block; 13. Vertical plate; 14. Pressure ring; 15. Buffer assembly; 16. Support plate; 161. Slide rod; 17. Placement block; 18. Connector; 2. Fixing plate; 21. Mounting ring; 22. Gear ring; 221. Welded part; 23. Fixing part; 231. Rotating shaft; 24. Gear; 3. Base. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides the following technical solution: a welding equipment for processing ventilation ducts.

[0026] Example 1: A welding device for processing ventilation ducts uses a double threaded rod 11 connected to a first slider to adjust the angle of the pressure ring 14. Then, through the coordinated action of components such as the slide rod 161, the placement block 17, and the return spring, the bottom of the ventilation duct is limited and installed. This allows for the fixed clamping of ventilation ducts of different sizes, preventing problems such as limited fixed dimensions of ventilation ducts, which can usually only adapt to pipes within a specific diameter range, and difficulty in achieving stable clamping when facing large-diameter or irregularly shaped pipes.

[0027] like Figure 1 - Figure 5As shown, a welding device for processing ventilation ducts includes a base 3 and a horizontal plate 1 uniformly fixedly connected to the top of the base 3. A first groove is formed at the top of the horizontal plate 1, and a double-threaded rod 11 is rotatably connected within the first groove. A first motor is fixedly connected to the front end of the double-threaded rod 11. Starting the first motor drives the double-threaded rod 11 to rotate. Both ends of the double-threaded rod 11 are threadedly connected to first sliders. When the double-threaded rod 11 rotates, the first sliders at both ends move towards each other along the first groove. A T-shaped block 12 is fixedly connected to the top of the first slider. When the first slider moves, it drives subsequent components to move synchronously through the T-shaped block 12. A vertical plate 13 is movably connected to the T-shaped block 12. The vertical plate 13 can be moved synchronously towards the pipeline. A pressure ring 14 is fixedly connected to the top of the vertical plate 13. The movement of the vertical plate 13 can cause the pressure ring 14 to gradually clamp the outer wall of the pipeline, forming a preliminary fixation. Buffer components 15 for support are fixedly connected to both sides of the top of the horizontal plate 1. The buffer spring of the buffer component 15 will be compressed during the clamping process, and the clamping force will be further buffered through elastic deformation to avoid rigid compression damage to the pipeline. A support plate 16 is provided on the top of the buffer component 15. The support plate 16 will tilt synchronously with the angle change of the connecting piece 18 to ensure that the placement block 17 is always tightly attached to the bottom of the pipeline. A second sliding groove is opened on the top of the support plate 16, and a sliding rod 161 is fixedly connected in the second sliding groove for placement. The placement block 17 provides a sliding path. A second slider is sleeved on the outer wall of the slide rod 161. The second slider can drive the placement block 17 to slide along the slide rod 161. A return spring is sleeved on the outer wall of the slide rod 161. The inner end of the return spring is fixedly connected to the outer end of the second slider. Under the combined action of the pipe's gravity and the return spring, the placement block 17 can slide flexibly and automatically adapt to the curvature of the pipe's bottom to ensure a tight fit. The top of the second slider is fixedly connected to the placement block 17 for placing the ventilation duct. The top of the placement block 17 has an arc-shaped groove to fit the shape of the pipe. The buffer assembly 15 includes a telescopic rod fixedly connected to the top of the horizontal plate 1. The telescopic rod, together with the buffer spring, plays a role in buffering and support. A buffer spring is fitted on the outer wall of the vertical plate 13, and a connector 18 is fixedly connected to the inner wall of the vertical plate 13. The connector 18 is movably connected to the support plate 16. The vertical plate 13 and the support plate 16 form a linkage structure through the connector 18. When the pressure ring 14 is opened and closed, the support plate 16 moves synchronously. Anti-slip blocks are evenly fixedly connected to the inner wall of the pressure ring 14 and the top arc-shaped groove of the placement block 17. The anti-slip blocks are spherical protrusions to enhance the friction with the pipe and improve the fixing effect. The front end of the double threaded rod 11 extends to the outside of the front outer wall of the horizontal plate 1. A pulley is fixedly connected to the front end of the double threaded rod 11. A belt is fitted on the outer wall of the pulley, which can realize the synchronous rotation of multiple sets of double threaded rods 11.

[0028] Example 2: Unlike Example 1, the meshing connection between gear 24 and gear ring 22 enables the welded part 221 to rotate and weld the ventilation duct on the top of the base 3. This prevents the situation where welding operations can only be performed on one side of the outer wall of the duct. When welding the other side or the inner wall joint is required, the duct placement angle must be manually readjusted and fixed a second time. This not only increases the operation steps and labor intensity, but also easily causes errors due to repeated positioning, seriously affecting the welding accuracy and consistency.

[0029] like Figure 6 As shown, a fixing plate 2 is fixedly connected to the center of the top surface of the base 3. Support columns are evenly fixedly connected to the top of the fixing plate 2, and mounting rings 21 are fixedly connected to the top of the support columns. The mounting rings 21 provide a stable support foundation for the entire rotating and welding structure. The limiting grooves on their inner walls are key guiding structures to ensure the stable rotation of the gear ring 22. A gear ring 22 is provided on the inner wall of the mounting ring 21, and a welded component 221 is fixedly connected to the inner wall of the gear ring 22. The gear ring 22 is the core component that drives the welded component 221 to rotate. When the gear ring 22 rotates… The welding component 221 rotates synchronously with the pipe joint, thus enabling the welding operation. A fixing component 23 is fixedly connected to the front of the top of the fixing plate 2. The fixing component 23 supports and fixes the rotating shaft 231, ensuring that the rotating shaft 231 can rotate stably. The rotating shaft 231 is rotatably connected to the fixing component 23. A second motor is fixedly connected to the right end of the rotating shaft 231. The second motor provides power for the operation of the entire device. When the second motor starts, it drives the rotating shaft 231 to rotate synchronously. A gear 24 is fixedly connected to the rotating shaft 231. Furthermore, gear 24 is meshed with gear ring 22. When rotating shaft 231 rotates, it drives gear 24 to rotate as well. Since gear 24 and gear ring 22 are meshed, the rotation of gear 24 drives gear ring 22 to rotate accordingly. A limiting groove is provided on the inner wall of mounting ring 21, and limiting blocks are fixedly connected to both outer walls of gear ring 22. Mounting ring 21 and gear ring 22 are rotatably connected through the limiting groove and limiting blocks. This structure ensures that gear ring 22 can rotate stably along the limiting groove on the inner wall of mounting ring 21 during rotation without deviation. When the pipeline is fixed... Once the positioning is complete, the second motor is started, which drives the rotating shaft 231 and gear 24 to rotate synchronously, thereby driving the gear ring 22 and the welding part 221 to rotate synchronously. This enables continuous and uniform welding operations at the pipe joints. If the welding angle needs to be adjusted, simply control the second motor to rotate clockwise or counterclockwise, thereby driving the welding part 221 to rotate clockwise or counterclockwise. This allows for precise completion of welding operations at different locations on the pipe (such as the outer wall, inner wall, and joints at different angles), without the need for manual intervention in the pipe position, greatly improving the convenience and accuracy of the welding operation.

[0030] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding device for processing ventilation ducts, comprising a base (3) and a horizontal plate (1) uniformly fixedly connected to the top of the base (3), characterized in that: The top of the horizontal plate (1) is provided with a first sliding groove, and a double threaded rod (11) is rotatably connected in the first sliding groove. A first motor is fixedly connected to the front end of the double threaded rod (11). Both ends of the double threaded rod (11) are threadedly connected to a first slider. A T-shaped block (12) is fixedly connected to the top of the first slider. A vertical plate (13) is movably connected to the T-shaped block (12). A pressure ring (14) is fixedly connected to the top of the vertical plate (13). Both sides of the top of the horizontal plate (1) are fixedly connected to a buffer assembly (15) for support. A support plate (16) is provided on the top of the buffer assembly (15). A second sliding groove is provided on the top of the support plate (16). A sliding rod (161) is fixedly connected in the second sliding groove. A second slider is sleeved on the outer wall of the sliding rod (161). A return spring is sleeved on the outer wall of the sliding rod (161). The inner end of the return spring is fixedly connected to the outer end of the second slider. A placement block (17) is fixedly connected to the top of the second slider. An arc-shaped groove is provided on the top of the placement block (17).

2. The welding equipment for processing ventilation ducts according to claim 1, characterized in that: The buffer assembly (15) includes a telescopic rod fixedly connected to the top of the horizontal plate (1), and a buffer spring is sleeved on the outer wall of the telescopic rod.

3. The welding equipment for processing ventilation ducts according to claim 1, characterized in that: A connector (18) is fixedly connected to the inner wall of the upright plate (13), and the connector (18) is movably connected to the support plate (16).

4. The welding equipment for processing ventilation ducts according to claim 1, characterized in that: The inner wall of the pressure ring (14) and the top arc-shaped groove of the placement block (17) are uniformly and fixedly connected with anti-slip blocks, and the anti-slip blocks are spherical protrusions.

5. The welding equipment for processing ventilation ducts according to claim 1, characterized in that: The front end of the double threaded rod (11) extends to the outside of the front outer wall of the horizontal plate (1). A pulley is fixedly connected to the front end of the double threaded rod (11), and a belt is sleeved on the outer wall of the pulley.

6. The welding equipment for processing ventilation ducts according to claim 1, characterized in that: A fixing plate (2) is fixedly connected to the middle of the top surface of the base (3). A support column is evenly fixedly connected to the top of the fixing plate (2). An installation ring (21) is fixedly connected to the top of the support column. A toothed ring (22) is provided on the inner wall of the installation ring (21). A welded part (221) is fixedly connected to the inner wall of the toothed ring (22). A fixing part (23) is fixedly connected to the front of the top of the fixing plate (2). A rotating shaft (231) is rotatably connected to the fixing part (23). A second motor is fixedly connected to the right end of the rotating shaft (231). A gear (24) is fixedly connected to the rotating shaft (231), and the gear (24) meshes with the toothed ring (22).

7. The welding equipment for processing ventilation ducts according to claim 6, characterized in that: The mounting ring (21) has a limiting groove on its inner wall, and the toothed ring (22) has limiting blocks fixedly connected to both outer walls on its two sides. The mounting ring (21) and the toothed ring (22) are rotatably connected to the limiting blocks through the limiting groove.

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