Welding device for aluminum alloy door and window processing

Abstract

The application relates to the aluminum alloy door and window processing technical field, in particular to a welding device for aluminum alloy door and window processing, which comprises a welding gun, an aluminum alloy frame, a jet assembly, a clamping frame, a folding frame, a discharge pipe and a slag suction mechanism, the slag suction mechanism comprises an adjusting assembly and a collecting hopper, the application forms an annular airflow barrier through the surrounding jet assembly, can effectively block the spatter of the welding slag, and avoids the generation of the welding slag defects on the profile surface; through the multi-motor adjusting structure, the telescopic electric cylinder and the folding frame, the position and the angle of the device can be adjusted in multiple dimensions, the welding operation of the aluminum alloy frame with different specifications and special shapes can be adapted, the air deflector can be flexibly unfolded or folded through the adjusting assembly, the spiral negative pressure airflow is formed in cooperation with the internal flow guide structure of the collecting hopper, and the welding slag collecting effect is improved; and the device can be folded and collected, and is convenient to store and carry. The technical problems that the traditional welding device has poor welding slag protection, weak adaptability and cannot be flexibly stored are solved, and the welding processing quality and the operation efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy door and window processing technology, specifically to a welding device for aluminum alloy door and window processing. Background Technology

[0002] In the production and processing of aluminum alloy doors and windows, frame splicing and welding is one of the important processes. The welding quality directly determines the structural stability, appearance flatness, and service life of the finished doors and windows. At present, the industry generally uses handheld welding guns with simple fixed fixtures to complete the welding of aluminum alloy frames, which can meet the basic frame welding and forming requirements. However, in actual batch processing and fine welding operations, the existing welding equipment still has many technical bottlenecks, which seriously restrict the welding processing quality and work efficiency of aluminum alloy doors and windows. Firstly, the slag protection and collection effects are poor, making it difficult to guarantee the quality of the welded products. During the welding of aluminum alloy doors and windows, the high temperature of the welding torch generates a large amount of molten slag. The existing slag collection and protection mechanisms in welding equipment are simple in structure and weak in protection, making it impossible to accurately and comprehensively intercept and collect the slag spatter generated during welding. During the welding process, a large amount of fine slag spatters irregularly, which easily adheres to the surface of the aluminum alloy frame that does not need to be welded, forming stubborn slag spots and raised defects. This not only seriously damages the overall appearance of the aluminum alloy doors and windows, affecting product quality, but also requires manual grinding and polishing to remove residual slag, increasing labor costs. During the grinding process, it is also easy to scratch the original paint surface and profile surface of the aluminum alloy frame, causing secondary damage. Secondly, the existing welding equipment lacks flexibility in adjusting the welding protection and slag collection mechanisms, resulting in poor adaptability and operational versatility. These mechanisms are mostly fixed structures, and their overall installation and slag collection positions cannot be flexibly adjusted according to the specifications of the aluminum alloy door and window profiles, frame curvature, and welding points. Different styles and sizes of aluminum alloy door and window frames have varying structures, making it difficult for fixed mechanisms to adapt to the welding needs of different angles and irregularly shaped frames. This results in poor adaptability during welding operations, failing to meet the diverse and sophisticated welding processing requirements of aluminum alloy doors and windows, and significantly limiting operational flexibility. Third, the slag collection mechanisms in existing welding equipment are mostly one-piece fixed structures. In order to ensure the range of slag collection, fixed large-size slag collection structures are usually adopted. It is impossible to flexibly expand and adjust the slag collection range according to the actual welding needs. When welding small-area points, there are problems of resource waste and low slag collection accuracy. At the same time, the slag collection mechanism is large in size and cannot be folded and stored. After the operation is completed, it is difficult to store and occupy a lot of storage space in the workshop. Moreover, it is inconvenient to transport and carry, which affects the flexibility and reusability of on-site operations in the workshop. Summary of the Invention

[0003] The purpose of this invention is to provide a welding device for aluminum alloy door and window processing. By forming an annular airflow barrier through a surrounding jet assembly, it can effectively block weld slag spatter and avoid weld slag defects on the surface of the profile. This solves the technical problems of poor weld slag protection and poor adaptability of traditional welding devices, and improves the welding processing quality and work efficiency.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides a welding device for processing aluminum alloy doors and windows, comprising: a welding torch and an aluminum alloy frame. Both ends of the welding torch are equipped with air jet components, which are slidably mounted on the aluminum alloy frame. The bottom end of each air jet component is equipped with a limiting rod and a telescopic electric cylinder. The other end of the limiting rod and the telescopic electric cylinder is equipped with a folding frame. One end of each of the two folding frames is hinged to a discharge pipe. One end of the discharge pipe is equipped with a discharge pipe connection port, and the top end of the discharge pipe is equipped with a slag suction mechanism. The slag suction mechanism includes an adjusting component and a collecting hopper.

[0005] According to some embodiments of the present invention, the jet assembly includes an air blowing component disposed on one side of the welding torch. The air blowing component is arc-shaped, and a plurality of nozzles arranged in an arc-shaped array are provided on the inner bottom wall of the arc-shaped air blowing component, surrounding the welding torch. An air inlet hose is provided at the top of the air blowing component, and a slide rod is provided at the other end of the air blowing component. A slide rail is slidably connected to one end of the slide rod, and an upper clamping frame is provided at the bottom end of the slide rail. A first adjusting motor is provided on the upper clamping frame, and a screw threadedly connected to the power output end of the first adjusting motor is provided at the screw rod. A lower clamping frame is hinged to one end of the upper clamping frame, and a self-locking buckle is provided on one side of both the lower clamping frame and the upper clamping frame.

[0006] According to some embodiments of the present invention, the top ends of the limiting rod and the telescopic electric cylinder are both connected to the bottom end of the lower clamping frame. The inner cavities of the lower clamping frame and the upper clamping frame are provided with multiple rollers, and the outer sides of the multiple rollers are provided with anti-slip grooves. One end of the roller is drivenly connected to a second adjusting motor.

[0007] According to some embodiments of the present invention, one end of the folding frame is rotatably connected to the outside of the discharge pipe.

[0008] According to some embodiments of the present invention, the outer wall of the discharge pipe is provided with threads, and the bottom side wall of the discharge pipe is provided with a negative pressure port.

[0009] According to some embodiments of the present invention, the adjusting assembly includes an adjusting sleeve threaded onto the outer wall of the discharge pipe. A plurality of push rods are hinged to the top end of the adjusting sleeve. One end of each push rod is connected to a spring, and the other end of the spring is connected to the outer wall of the adjusting sleeve. A pulley is provided at the other end of each push rod, and a driven rod is also hinged to the other end of the push rod. A guide plate is hinged to the other end of the driven rod.

[0010] According to some embodiments of the present invention, the plurality of air guide plates are all arranged in an arc-shaped inclined shape, and an air intake gap is provided between two adjacent air guide plates.

[0011] According to some embodiments of the present invention, the collecting hopper is hinged to the bottom end of a plurality of air guide plates, the top end of the collecting hopper is open, the bottom end of the collecting hopper is connected to the discharge pipe, and a plurality of guide vanes are provided on the inner cavity sidewall of the collecting hopper, and the plurality of guide vanes are arranged in a ring array at an angle.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention utilizes the coordinated operation of an air jet assembly, a collection hopper, and a slag suction mechanism. An air pump supplies air to the nozzle, directing and blocking the welding slag spatter generated during welding. Combined with a spiral air intake and slag collection structure formed by a guide vane, it can collect welding slag spatter from all directions, improving collection accuracy and effectively preventing irregular spatter from adhering to non-welded areas of the aluminum alloy frame. This solves the problems of poor slag collection and the formation of slag spots common in traditional devices, improving the smoothness and processing quality of welded aluminum alloy doors and windows. It eliminates the need for post-weld manual grinding and slag removal, reducing labor costs and avoiding secondary damage to the profiles caused by grinding.

[0013] 2. This invention employs a multi-dimensional adjustment structure comprised of a first adjusting motor, a second adjusting motor, a telescopic electric cylinder, and a folding frame. A screw drives a sliding rod along a track, flexibly adjusting the air-blowing position and protective distance of the air-blowing component. Simultaneously, rollers enable overall device displacement adjustment. Combined with the foldable frame and telescopic electric cylinder, it allows for welding of irregularly shaped aluminum alloy frames of different specifications, curvatures, and angles. This effectively solves the technical shortcomings of traditional welding devices, such as fixed structures, poor adjustment flexibility, and narrow adaptability, improving the device's versatility and precision operation capabilities, and meeting the diverse welding processing needs of aluminum alloy doors and windows.

[0014] 3. This invention, through the combination of an adjustable sleeve, an openable push rod, and a guide plate, allows for flexible deployment of the guide plate according to actual welding operation needs, expanding the slag collection coverage of the hopper and improving the slag collection efficiency for large-area welding operations. After operation, the guide plate can be retracted using the adjusting sleeve and spring force, and the folding mechanism allows for the overall folding and retraction of the device. This solves the problems of traditional welding device slag collection mechanisms, such as inflexible adjustment of the slag collection range, large size, and inconvenient storage and transportation, effectively saving workshop storage space and improving the reusability and on-site operational flexibility of the device.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the adjustment component structure of the present invention; Figure 3 This is a schematic diagram of the material collection hopper structure of the present invention; Figure 4 This is a schematic diagram of the jet assembly structure of the present invention; Figure 5 This is a schematic diagram of the nozzle structure of the present invention; Figure 6 This is a schematic diagram of the airflow guidance structure of the present invention.

[0018] In the diagram: 1. Welding torch; 2. Aluminum alloy frame; 3. Jet assembly; 31. Air blowing component; 311. Nozzle; 312. Air inlet hose; 32. Slide rail; 33. Slide rod; 4. Upper clamping frame; 41. First adjusting motor; 42. Screw; 43. Self-locking buckle; 44. Roller; 45. Second adjusting motor; 5. Lower clamping frame; 51. Limiting rod; 52. Telescopic electric cylinder; 6. Folding frame; 7. Discharge pipe; 71. Discharge pipe connection port; 72. Negative pressure port; 8. Slag suction mechanism; 9. Adjusting assembly; 91. Adjusting sleeve; 92. Push rod; 93. Spring; 94. Pulley; 95. Driven rod; 96. Air guide plate; 10. Collection hopper; 101. Flow guide plate. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0020] like Figures 1-6 As shown, a welding device for processing aluminum alloy doors and windows includes: a welding torch 1 and an aluminum alloy frame 2. Both ends of the welding torch 1 are provided with jetting components 3. The jetting components 3 are slidably mounted on the aluminum alloy frame 2. The bottom end of the jetting components 3 is provided with a limiting rod 51 and a telescopic electric cylinder 52. The other end of the limiting rod 51 and the telescopic electric cylinder 52 is provided with a folding frame 6. One end of the two folding frames 6 is hinged to a discharge pipe 7. One end of the discharge pipe 7 is provided with a discharge pipe connection port 71. The top end of the discharge pipe 7 is provided with a slag suction mechanism 8. The slag suction mechanism 8 includes an adjusting component 9 and a collecting hopper 10.

[0021] The machine integrates jet protection, position adjustment, folding adaptation, and slag collection structure into one unit. Slag protection is achieved through the jet assembly 3, while the position and angle of the entire machine are adaptively adjusted via the limit rod 51, telescopic electric cylinder 52, and folding frame 6. A complete slag collection and conveying channel is formed through the discharge pipe 7 and slag suction mechanism 8. The overall structure is compact and rationally laid out, achieving integrated operation of welding protection, adaptive adaptation, and automatic slag collection. This effectively solves the problems of traditional welding devices, such as single function, separation of protection and slag collection, and poor adaptability, thus improving the overall integrity and automation level of aluminum alloy welding operations.

[0022] The jet assembly 3 includes an air blowing component 31 located on one side of the welding torch 1. The air blowing component 31 is arc-shaped, and multiple nozzles 311 arranged in an arc-shaped array are provided on the inner bottom wall of the arc-shaped air blowing component 31, surrounding the welding torch 1. An air inlet hose 312 is provided at the top of the air blowing component 31, and the other end of the air inlet hose 312 is connected to an external air pump. A slide rod 33 is provided at the other end of the air blowing component 31. A slide rail 32 is slidably connected to one end of the slide rod 33. An upper clamping frame 4 is provided at the bottom end of the slide rail 32. A first adjusting motor 41 is provided on the upper clamping frame 4. A screw 42 threadedly connected to the power output end of the first adjusting motor 41 is provided. A lower clamping frame 5 is hinged to one end of the upper clamping frame 4. A self-locking buckle 43 is provided on one side of both the lower clamping frame 5 and the upper clamping frame 4.

[0023] The arc-shaped, surrounding air-blowing component 31, in conjunction with the array-type nozzle 311, forms a ring-shaped, sealed airflow barrier in the welding area of ​​the welding torch 1, effectively preventing weld slag from scattering and splashing in all directions. The first adjusting motor 41 drives the screw 42, which in turn moves the slide rod 33 along the slide rail 32, allowing for precise adjustment of the working position and blowing distance of the air-blowing component 31 to adapt to different welding conditions. The lower clamping frame 5 and the upper clamping frame 4, together with the self-locking buckle 43, enable quick and easy locking and fixing of the entire device, ensuring convenient installation and a secure fixation. This provides protection against weld slag splashing while also offering adjustability, improving welding protection accuracy and installation stability.

[0024] The top ends of the limiting rod 51 and the telescopic electric cylinder 52 are both connected to the bottom end of the lower clamping frame 5. The inner cavities of the lower clamping frame 5 and the upper clamping frame 4 are provided with multiple rollers 44. The outer sides of the multiple rollers 44 are provided with anti-slip grooves. One end of the rollers 44 is connected to a second adjusting motor 45.

[0025] By cooperating with the telescopic electric cylinder 52 and the limiting rod 51, the distance between the slag suction mechanism 8 and the welding operation point can be precisely adjusted to adapt to the processing requirements of different welding thicknesses and different working heights. The limiting rod 51 can effectively limit the telescopic stroke, avoid the overall structure from shifting and shaking, and ensure the stability of the operation. The second adjusting motor 45 drives the roller 44 with anti-slip groove to rotate, which can drive the whole machine to move smoothly on the aluminum alloy frame 2, realize non-disassembly multi-point continuous welding. The anti-slip groove structure can prevent slippage and improve the stability and accuracy of the device during the movement process, and improve the overall welding operation efficiency.

[0026] One end of the folding frame 6 is rotatably connected to the outside of the discharge pipe 7, and the folding frame 6 is equipped with a rotary locking mechanism.

[0027] Through the hinged rotary locking mechanism between the folding frame 6 and the discharge pipe 7 (the rotary locking mechanism is existing technology, a general-purpose simple structure, not shown in the figure), the discharge pipe 7 and the top slag suction mechanism 8 can be rotated and folded synchronously with the folding frame 6. On the one hand, it can adaptively adjust the slag collection angle according to the irregular angle and bending structure of the aluminum alloy frame 2, meet the slag protection requirements for welding irregular profiles, and adapt to various complex processing conditions; on the other hand, it can realize the folding and folding of the structure after the operation is completed, reducing the overall volume of the device, reducing the difficulty of storage and transportation, and improving the portability of use.

[0028] The outer wall of the discharge pipe 7 is threaded, and the bottom side wall of the discharge pipe 7 is provided with a negative pressure port 72.

[0029] The threaded structure on the outer wall of the discharge pipe 7 ensures a smooth, precise, and uninterrupted adjustment process. The obliquely set negative pressure port 72 can be connected to an external pressurized air blowing device to accelerate the airflow rate inside the discharge pipe 7, forming a stable negative pressure airflow channel inside the pipe. This allows for rapid suction and conveying of the welding slag collected in the collection hopper 10, preventing the welding slag from accumulating and clogging inside the pipe. This improves the conveying efficiency and continuity of slag collection, ensuring the stable operation of long-term continuous welding.

[0030] The adjusting assembly 9 includes an adjusting sleeve 91, which is threaded onto the outer wall of the discharge pipe 7. Multiple push rods 92 are hinged to the top of the adjusting sleeve 91. One end of each push rod 92 is connected to a spring 93, and the other end of the spring 93 is connected to the outer wall of the adjusting sleeve 91. A pulley 94 is provided at the other end of the push rod 92. A driven rod 95 is also hinged to the other end of the push rod 92. A guide plate 96 is hinged to the other end of the driven rod 95.

[0031] By setting a rotating adjusting sleeve 91, lifting and lowering displacement can be achieved through threaded transmission, which in turn drives the push rod 92 and the driven rod 95 to move in conjunction, realizing the opening and closing of the air guide plate 96. The spring 93 and the pulley 94 can always maintain a close fit, eliminating adjustment gaps and ensuring a smooth, stable, and precise positioning during the opening and closing adjustment process. This linkage structure realizes adjustable control of the slag collection range, and also has an automatic fit and reset function, taking into account both the adjustability of the operation and the structural stability, and adapting to welding operation areas of different sizes.

[0032] Multiple air guide plates 96 are arranged in an arc-shaped inclined shape, and there is an air intake gap between two adjacent air guide plates 96.

[0033] By using an arc-shaped inclined air guide plate 96 in conjunction with a slit-type air intake structure, external airflow can enter the inside of the collection hopper 10 from the slits and top. Under the guiding effect of the arc-shaped air guide plate 96, a spiral swirling airflow is formed. The spiral airflow can enhance the negative pressure adsorption force, forming a strong gathering and suction effect on tiny spattered welding slag, avoiding the problems of fine welding slag residue and spatter leakage. At the same time, the inclined arc structure can expand the slag collection coverage area, further improving the comprehensiveness and accuracy of welding slag collection.

[0034] The collecting hopper 10 is hinged to the bottom of multiple air guide plates 96. The top of the collecting hopper 10 is open. The bottom of the collecting hopper 10 is connected to the discharge pipe 7. Multiple guide plates 101 are provided on the inner cavity side wall of the collecting hopper 10. The multiple guide plates 101 are arranged in a ring array at an angle.

[0035] The top-opening hopper 10 structure maximizes the collection of welding slag falling from the welding spatter. Combined with the inclined guide vanes 101 arranged in a ring array inside the cavity, it can further regulate the airflow direction, enhance the spiral swirling effect, and improve the integrated effect of welding slag collection, guidance, and suction. The hopper 10 is hinged to the air guide plate 96 and can be opened and closed synchronously with the air guide plate 96 to adapt to different slag collection range requirements. At the same time, the bottom end is connected to the discharge pipe 7, which can quickly transport and discharge the collected welding slag, solving the technical problems of poor welding slag collection effect, accumulation and blockage, and spatter residue in traditional welding devices.

[0036] Working principle: The upper clamping frame 4 and the lower clamping frame 5 are clamped on the outer wall of the aluminum alloy frame 2 to be welded. The frame is fixed by locking the self-locking buckle 43. The other end of the air inlet hose 312 is connected to the air pump. The air pump is started and the gas is sprayed out through multiple nozzles 311. When the welding torch 1 is performing welding operations, the spatter is blown by the gas and prevents it from scattering. The spatter falls to the bottom with the direction of the nozzles 311. It should be noted that, as needed, the first adjusting motor 41 is activated to drive the screw 42 to rotate, so that the adjusting slide rod 33 slides within the slide rail 32, thereby moving and adjusting the position of the air blowing component 31 to control the blowing distance and intensity; the second adjusting motor 45 can be activated to drive the roller 44 to rotate, thereby moving and adjusting the position of the device on the aluminum alloy frame 2; the folding frame 6 can be folded to adapt to welding aluminum alloy frames 2 with different shapes and angles. Similarly, the telescopic electric cylinder 52, in conjunction with the limiting rod 51, can adjust the distance between the slag suction mechanism 8 and the welding position; After adjustment, connect the discharge pipe connection port 71 to the fire-resistant discharge hose. The other end of the discharge hose is connected to an air pump. A water tank can be installed at the end of the discharge hose to cool and collect the absorbed high-temperature welding slag. The negative pressure port 72 is set at an angle downward and connected to an external pressurizing air blowing device to accelerate the gas flow speed in the discharge pipe 7. During this process, the gas enters from the top opening of the collection hopper 10. By manually rotating the adjusting sleeve 91 and cooperating with the interaction between the threads, the adjusting sleeve 91 moves up and down, driving the push rod 92 and the air guide plate 96 to expand and retract. After the air guide plate 96 is expanded, it can expand the slag collection range. At the same time, by setting it at an angle and maintaining gaps between adjacent air guide plates 96, the gas can enter the inner cavity of the collection hopper 10 through the gaps and the top. Under the guidance of the air guide plate 96, spiral air intake is achieved. Spiral air intake can improve the collection of welding slag and avoid the problems of incomplete absorption of welding slag and serious spatter. When the push rod 92 and multiple air guide plates 96 are moved to the bottom by manually rotating the adjusting sleeve 91, the elasticity of the spring 93 will pull the pulley 94 to always be in contact with the outer wall of the hopper 10, so as to realize the folding of the air guide plates 96. With the hinge connection of the folding frame 6, it can be folded and stored for easy carrying.

[0037] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding device for processing aluminum alloy doors and windows, characterized in that, include: A welding torch (1) and an aluminum alloy frame (2) are provided. Both ends of the welding torch (1) are provided with jet assembly (3). The jet assembly (3) is slidably mounted on the aluminum alloy frame (2). The bottom end of the jet assembly (3) is provided with a limiting rod (51) and a telescopic electric cylinder (52). The other end of the limiting rod (51) and the telescopic electric cylinder (52) is provided with a folding frame (6). One end of the two folding frames (6) is hinged with a discharge pipe (7). One end of the discharge pipe (7) is provided with a discharge pipe connection port (71). The top end of the discharge pipe (7) is provided with a slag suction mechanism (8). The slag suction mechanism (8) includes an adjustment component (9) and a collection hopper (10).

2. The welding device for processing aluminum alloy doors and windows according to claim 1, characterized in that, The jet assembly (3) includes an air blowing component (31) disposed on one side of the welding torch (1). The air blowing component (31) is arc-shaped. Multiple nozzles (311) arranged in an arc array are provided on the inner bottom wall of the arc-shaped air blowing component (31), which surround the welding torch (1). An air inlet hose (312) is provided at the top of the air blowing component (31). A slide rod (33) is provided at the other end of the air blowing component (31). A slide rail (32) is slidably connected to one end of the slide rod (33). An upper clamping frame (4) is provided at the bottom end of the slide rail (32). A first adjusting motor (41) is provided on the upper clamping frame (4). A screw (42) is threadedly connected to the power output end of the first adjusting motor (41) and a lower clamping frame (5) is hinged to one end of the upper clamping frame (4). A self-locking buckle (43) is provided on one side of both the lower clamping frame (5) and the upper clamping frame (4).

3. The welding device for processing aluminum alloy doors and windows according to claim 2, characterized in that, The top ends of the limiting rod (51) and the telescopic electric cylinder (52) are both connected to the bottom end of the lower clamping frame (5). The inner cavities of the lower clamping frame (5) and the upper clamping frame (4) are provided with multiple rollers (44). The outer sides of the multiple rollers (44) are provided with anti-slip grooves. One end of the rollers (44) is connected to a second adjusting motor (45).

4. The welding device for processing aluminum alloy doors and windows according to claim 3, characterized in that, One end of the folding frame (6) is rotatably connected to the outside of the discharge pipe (7).

5. The welding device for processing aluminum alloy doors and windows according to claim 4, characterized in that, The outer wall of the discharge pipe (7) is provided with threads, and the bottom side wall of the discharge pipe (7) is provided with a negative pressure port (72).

6. The welding device for processing aluminum alloy doors and windows according to claim 1, characterized in that, The adjustment assembly (9) includes an adjustment sleeve (91), which is threaded onto the outer wall of the discharge pipe (7). The top end of the adjustment sleeve (91) is hinged with a plurality of push rods (92), one end of each of the push rods (92) is connected to a spring (93), the other end of the spring (93) is connected to the outer wall of the adjustment sleeve (91), the other end of the push rod (92) is provided with a pulley (94), and the other end of the push rod (92) is also hinged with a driven rod (95), the other end of the driven rod (95) is hinged with a guide plate (96).

7. The welding device for processing aluminum alloy doors and windows according to claim 6, characterized in that, The multiple air guide plates (96) are all arranged in an arc-shaped inclined shape, and an air intake gap is provided between two adjacent air guide plates (96).

8. The welding device for processing aluminum alloy doors and windows according to claim 1, characterized in that, The collecting hopper (10) is hinged to the bottom of multiple air guide plates (96). The top of the collecting hopper (10) is open. The bottom of the collecting hopper (10) is connected to the discharge pipe (7). Multiple guide plates (101) are provided on the inner cavity side wall of the collecting hopper (10). The multiple guide plates (101) are arranged in a ring array at an angle.

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