Energy-saving and environment-friendly electric welding machine with air purification function

Abstract

The invention belongs to the technical field of electric welding equipment, and particularly relates to an energy-saving and environment-friendly electric welding machine with an air purification function. Through the linkage design of the pneumatic grip and the dust collection linkage switch, a synchronous response mechanism of welding operation and a purification system is constructed, when the pneumatic grip is pressed down to start welding, the dust collection linkage switch immediately triggers a pump machine in the air purification equipment to operate, it is ensured that smoke generated by welding is captured in time in the initial diffusion stage, and therefore the welding efficiency is improved. When the grip is loosened and welding is paused, the purification system synchronously stops running, accurate matching of the purification state and the welding rhythm can be achieved without additional operation, the design simplifies the operation process, energy waste caused by idling of the purification system in the non-welding stage is avoided, energy consumption control is considered while the clean operation environment is guaranteed, and the welding quality is improved. And the technical effects of energy conservation and environmental protection are achieved.

Description

Technical Field

[0001] This invention relates to the field of electric welding equipment technology, and in particular to an energy-saving and environmentally friendly electric welding machine with air purification function. Background Technology

[0002] An electric welding machine is a welding device that uses electrical energy to generate an electric arc, converting electrical energy into heat energy to locally melt and join metal materials (such as steel, aluminum alloys, etc.). It primarily uses a high-temperature arc generated between positive and negative electrodes to melt the welding rod or wire and the workpiece being welded. After cooling, a strong weld joint is formed, thus achieving a permanent metal connection. A handheld welding machine is a portable welding device that is easy for operators to hold and use. Compared to traditional large welding machines, it is smaller and lighter, making it suitable for use in confined spaces, at heights, or in mobile environments.

[0003] Chinese Patent No. CN214236691U discloses a handheld welding machine, including a handheld housing. The welding machine body is housed within the handheld housing, and the housing has a clamping structure for fixing welding rods. This clamping structure is conductive and electrically connected to the welding body. The purpose of this invention is to provide a handheld welding machine that solves the problem of the output cable obstructing the welding machine during use. Through structural modifications, the welding machine is made more convenient to carry, and the probability of the cables becoming tangled is reduced.

[0004] In terms of material adaptability, welding different materials will produce fumes with significant differences in composition and particle size. However, existing purification systems mostly use fixed filter screens and airflow parameters, which cannot be used for targeted treatment. For example, ordinary filters have limited interception effect on the fine metal particles generated by stainless steel welding. When welding aluminum alloys, if the airflow is too large, it will easily interfere with the stability of the electric arc, while if the airflow is too small, it will cause the fumes to spread. This one-size-fits-all purification method not only reduces the efficiency of pollutant filtration, but may also affect the welding quality or cause energy waste. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes an energy-saving and environmentally friendly welding machine with air purification function, thereby more accurately solving the problems mentioned in the background art.

[0006] This invention is achieved through the following technical solution: This invention proposes an energy-saving and environmentally friendly welding machine with air purification function, including a handheld welding gun. A welding head is fixedly connected to the lower end of the handheld welding gun. A multi-functional outer frame is fitted around the outer side of the welding head near the handheld welding gun, and the multi-functional outer frame is fixedly connected to the handheld welding gun. A flexible conical shroud is fixedly connected to the outer side of the multi-functional outer frame away from the handheld welding gun. A dust suction port is fixedly connected to the outer side of the flexible conical shroud, and an air purification device is connected to the dust suction port. A stretchable hose is fixedly connected to the front end of the air purification device. A pneumatic handle is movably connected to the lower end of the handheld welding gun, and a [missing information - likely a component or component] is fixedly connected to the upper inner wall of the flexible conical shroud. The second ring-shaped frame is located outside the welding head. A miniature spectral sensor is fixedly connected to the upper inner wall of the second ring-shaped frame. A reinforced protective window ring is fixedly connected to the lower end of the second ring-shaped frame. Horizontal frames are symmetrically fixedly connected to the upper and lower inner walls of the air purification equipment. Motors are fixedly connected to the ends of the two horizontal frames that are close to each other. A rotatable frame is installed between the output ends of the two motors. Coarse and fine filter screens are fixedly connected to the inner sides of the rotatable frame, respectively. A pump that cooperates with the rotatable frame is fixedly connected to the purification equipment, and the input end of the pump faces the working surface of the rotatable frame. The pump, rotatable frame, and stretchable hose are connected in sequence.

[0007] Preferably, the stretchable hose and the vacuum interface are detachably connected, and the front end of the air purifier is fixedly connected to a smart controller panel.

[0008] Preferably, a dust extraction linkage switch is fixedly connected to the lower end of the handheld welding gun, and the dust extraction linkage switch and the pneumatic handle cooperate with each other.

[0009] Preferably, an electrical conductor rail is fixedly connected to the outer end of the second ring-shaped frame, and a sliding vertical rod is installed at the output end of the electrical conductor rail.

[0010] Preferably, a flexible wiping surface is fixedly connected to the upper side of the vertical end of the sliding rod, and the flexible wiping surface and the lower inner wall of the reinforced protective window ring are in contact with each other.

[0011] Preferably, the lower end of the multifunctional outer frame is fixedly connected to a first ring frame located between the welding head and the second ring frame.

[0012] Preferably, the lower end of the first circular frame is fixedly connected to a plurality of laser emitters evenly distributed along the circumference, and the outer ends of the multifunctional outer frame and the outer ends of the flexible conical cover are respectively fixedly connected to circular outer frames.

[0013] Preferably, the two circular outer frames are arranged vertically opposite each other, and a plurality of elastic vertical rods arranged in rings at equal intervals are fixedly connected between the two circular outer frames.

[0014] Preferably, a carrying handle is fixedly connected to the upper middle part of the air purifier, and a storage rack is fixedly connected to the side of the air purifier.

[0015] Preferably, the storage rack and the handheld welding gun are interlocked, and the outer end of the handheld welding gun has several anti-slip textures.

[0016] Compared with the prior art, the present invention provides an energy-saving and environmentally friendly welding machine with air purification function, which has the following beneficial effects: This energy-saving and environmentally friendly welding machine with air purification function uses a handheld welding gun that, through the cooperation of a miniature spectral sensor and a smart controller panel, achieves automatic identification of welding materials and intelligent matching of purification schemes. By identifying different materials, the system can drive the rotatable frame to switch between coarse and fine filters to prioritize facing the dust suction direction, making the purification method accurately adapt to the characteristics of various fumes. This avoids the limitations of a single filter in handling different fumes and ensures that the purification effect is more in line with actual needs. The reinforced protective window ring, together with the flexible wiping surface driven by the sliding vertical rod, can remove fumes from the surface of the window ring in real time. It also dynamically adjusts according to the fumes concentration signal detected by the miniature spectral sensor, effectively avoiding the impact of fumes obstructing the sensor's recognition accuracy, ensuring continuous and accurate material identification, reducing misjudgments of the purification scheme due to recognition errors, and thus maintaining the long-term stable operation of the equipment.

[0017] This energy-saving and environmentally friendly welding machine with air purification function features a handheld welding gun that uses a pneumatic handle and a dust extraction switch to create a synchronized response mechanism between welding operations and the purification system. When the pneumatic handle is pressed to start welding, the dust extraction switch immediately triggers the pump in the air purification device to ensure that welding fumes are captured in their early stages of diffusion. When the handle is released to pause welding, the purification system stops operating simultaneously. This design achieves precise matching between the purification state and the welding rhythm without additional operation. This simplifies the operation process and avoids energy waste caused by the purification system running idle during non-welding phases. It ensures a clean working environment while also controlling energy consumption, resulting in energy-saving and environmentally friendly technology, and is especially suitable for intermittent welding scenarios.

[0018] This energy-saving and environmentally friendly welding machine with air purification function uses a handheld welding gun. Through the ring-shaped positioning light circle formed by multiple laser emitters on the first ring frame, it provides an intuitive positioning reference for the welding head, assisting the operator to quickly align the welding head with the welding point, reducing visual deviation during the positioning process, and improving the accuracy of the welding position. It is particularly effective in complex workpieces or low-light environments. The multi-functional outer frame, supported by the ring-shaped outer frame and the elastic vertical rod, ensures the relative position stability of the welding head and the flexible conical cover, and also gives the structure a certain degree of deformation adaptability. It can adjust its posture to fit irregular welding surfaces, ensuring that the flexible conical cover always maintains a reasonable distance from the workpiece surface, effectively collecting smoke and dust, improving collection efficiency, and preventing smoke and dust from escaping due to the special shape of the workpiece. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the static state structure of a handheld welding gun of an energy-saving and environmentally friendly welding machine with air purification function proposed in this invention. Figure 2 This is a schematic diagram of the handheld welding gun of an energy-saving and environmentally friendly welding machine with air purification function proposed in this invention, showing its usage state. Figure 3 This is a bottom-view structural diagram of a handheld welding gun for an energy-saving and environmentally friendly welding machine with air purification function proposed in this invention. Figure 4 This invention proposes an energy-saving and environmentally friendly welding machine with air purification function. Figure 3 A partially truncated and enlarged structural diagram of the inner ring-shaped outer frame; Figure 5 This is a schematic diagram of the first ring-shaped frame structure of an energy-saving and environmentally friendly welding machine with air purification function proposed in this invention; Figure 6 This invention proposes an energy-saving and environmentally friendly welding machine with air purification function. Figure 5 A partially truncated enlarged structural diagram of the second ring-shaped frame in the middle; Figure 7 This is a schematic diagram of the internal structure of the air purification device for an energy-saving and environmentally friendly welding machine with air purification function proposed in this invention. Figure 8 This is a schematic diagram of the structure of an energy-saving and environmentally friendly welding machine with air purification function proposed in this invention.

[0020] In the diagram: 1. Handheld welding gun; 2. Welding head; 3. Multifunctional outer frame; 4. Flexible conical cover; 5. Circular outer frame; 6. Elastic vertical bar; 7. Pneumatic handle; 8. Vacuum-operated switch; 9. Storage rack; 10. Air purification equipment; 11. Stretchable hose; 12. Hand handle; 13. Smart controller panel; 14. Vacuum interface; 15. First circular frame; 16. Laser emitter; 17. Second circular frame; 18. Miniature spectral sensor; 19. Reinforced protective window ring; 20. Electrical guide rail; 21. Sliding vertical bar; 22. Flexible wiping surface; 23. Pump; 24. Horizontal frame; 25. Rotatable frame; 26. Motor; 27. Coarse filter screen; 28. Fine filter screen; 29. ​​Anti-slip texture. Detailed Implementation

[0021] To more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings. Example

[0022] like Figures 1-8 As shown, this invention is proposed in one embodiment.

[0023] This invention includes a handheld welding gun 1, with a welding head 2 fixedly connected to the lower end of the handheld welding gun 1. A multi-functional outer frame 3 is fitted around the outer side of the welding head 2 near the handheld welding gun 1, and the multi-functional outer frame 3 is fixedly connected to the handheld welding gun 1. A flexible conical cover 4 is fixedly connected to the outer side of the multi-functional outer frame 3 away from the handheld welding gun 1. A dust suction port 14 is fixedly connected to the outer side of the flexible conical cover 4, and an air purification device 10 is connected to the outside of the dust suction port 14. A stretchable hose 11 is fixedly connected to the front end of the air purification device 10. A pneumatic handle 7 is movably connected to the lower end of the handheld welding gun 1. A second ring-shaped frame 17 located outside the welding head 2 is fixedly connected to the upper inner wall of the flexible conical cover 4. A miniature spectral sensor 18 is fixedly connected to the upper inner wall of the frame 17. A reinforced protective window ring 19 is fixedly connected to the lower end of the second ring frame 17. Horizontal frames 24 are symmetrically fixedly connected to the upper and lower inner walls of the air purification device 10. Motors 26 are fixedly connected to the ends of the two horizontal frames 24 that are close to each other. A rotatable frame 25 is installed between the output ends of the two motors 26. Coarse filter screens 27 and fine filter screens 28 are fixedly connected to the inner sides of the rotatable frame 25, respectively. A pump 23 that cooperates with the rotatable frame 25 is fixedly connected to the purification device 10. The input end of the pump 23 faces the working surface of the rotatable frame 25. The pump 23, the rotatable frame 25, and the stretchable hose 11 are connected in sequence.

[0024] In this solution, the operator holds the welding torch 1 and presses the pneumatic handle 7 to the working position. After the welding head 2 ignites the arc, the generated high-temperature fumes are quickly gathered by the flexible conical shroud 4. Its conical structure can form a local negative pressure zone. Combined with the suction force of the pump 23 inside the air purification equipment 10, the fumes enter the stretchable hose 11 through the dust suction interface 14. The stretchable hose 11 flexibly extends and retracts with the movement of the hand holding the welding torch 1, ensuring that the fume transmission path is always unobstructed. Before this, the miniature spectral sensor 18 on the second ring frame 17 scans the material spectrum of the welding area in real time through the reinforced protective window ring 19. The miniature spectral sensor 18 emits a beam of light containing multiple wavelengths to irradiate the welding material. The material absorbs some light and reflects some light. The sensor captures this unique reflection pattern and compares this pattern with the pre-stored material pattern. By comparing the samples, the material can be identified, and the data is then fed back to the controller, which switches the corresponding purification mode. The identification scanning frequency is 50 times / second, and the data is transmitted to the intelligent controller panel 13 via the electrical guide rail 20. The intelligent controller panel 13 analyzes the spectral data collected by the miniature spectral sensor 18, identifies the welding material such as carbon steel or stainless steel, and automatically calls the preset purification scheme. When stainless steel is identified, the motor 26 drives the rotatable frame 25 to rotate, switching the fine filter 28 to the working channel until it reaches the working position. The fine filter has an interception rate of 99.8% for 0.1-2μm metal particles. When aluminum alloy is identified, the coarse filter 27 is switched to the working position. Switching to the coarse filter 27 can efficiently intercept large particles of impurities, while reducing the power of the pump 23 to reduce the air volume. The fumes generated by welding stainless steel and aluminum alloy have significant differences in physical properties, especially in particle size. Therefore, filters of different precision are required to achieve efficient purification and energy optimization. This intelligent switching filter design embodies the invention's advancement from a "one-size-fits-all" approach to "precision purification." It no longer simply sucks away smoke, but dynamically adjusts the purification strategy based on the intrinsic relationship between materials, dust, and processes, ultimately achieving an optimal balance between protecting worker health, ensuring welding quality, and improving energy efficiency.

[0025] The stretchable hose 11 and the vacuum interface 14 are detachably connected. The front end of the air purifier 10 is fixedly connected to the smart controller panel 13, and the lower end of the handheld welding gun 1 is fixedly connected to the vacuum linkage switch 8. The vacuum linkage switch 8 and the pneumatic handle 7 cooperate with each other.

[0026] When the pneumatic handle 7 is pressed, the dust extraction linkage switch 8 is triggered simultaneously. The linkage design between the pneumatic handle 7 and the dust extraction linkage switch 8 ensures that the purification system works synchronously when welding starts, and the pump 23 in the air purification equipment 10 starts. Conversely, it stops when welding starts. No additional manual operation is required to shut down the purification equipment, which simplifies the operation process and avoids the energy waste caused by the purification system running idle during non-welding stages.

[0027] The outer end of the second ring frame 17 is fixedly connected to an electrical conductor rail 20. A sliding vertical rod 21 is installed at the output end of the electrical conductor rail 20. A flexible wiping surface 22 is fixedly connected to the upper side of the vertical end of the sliding vertical rod 21. The flexible wiping surface 22 and the lower inner wall of the reinforced protective window ring 19 are in contact with each other.

[0028] The lower end of the multi-functional outer frame 3 is fixedly connected to a first circular frame 15 located between the welding head 2 and the second circular frame 17. The lower end of the first circular frame 15 is fixedly connected to a plurality of laser emitters 16 evenly distributed along the circumference.

[0029] Multiple laser emitters 16 on the first circular frame 15 emit ring-shaped laser beams, forming a positioning aperture on the workpiece surface. This helps to align the welding head 2 with the welding point, visually indicating the center position of the welding point and defining the boundary of the welding area. Operators do not need to repeatedly look down to compare or use additional measuring tools; by observing the relative position of the welding head 2 and the aperture, they can quickly align the welding head 2 with the preset welding point. This is especially effective in low-light working environments or in welding multiple welding points on complex workpieces, significantly reducing positioning errors and adjustment time.

[0030] The outer ends of the multifunctional outer frame 3 and the outer ends of the flexible conical cover 4 are respectively fixedly connected to the circular outer frame 5. The two circular outer frames 5 are arranged vertically opposite each other, and multiple elastic vertical rods 6 are fixedly connected between the two circular outer frames 5, which are evenly distributed along the circumference.

[0031] The multi-functional outer frame 3, supported by the circular outer frame 5 and the elastic vertical rod 6, ensures the relative position stability of the welding head 2 and the flexible conical cover 4. It can also accommodate irregular welding surfaces. When the welding head 2 contacts the surface of irregular workpieces such as arcs and slopes, the elastic vertical rod 6 can bend and extend synchronously with the contact action of the flexible conical cover 4. This will not hinder the operator from adjusting the welding angle, and it can also maintain a reasonable distance between the flexible conical cover 4 and the workpiece surface through its own elastic restoring force, ensuring the stable formation of the local negative pressure zone.

[0032] A handle 12 is fixedly connected to the upper middle part of the air purifier 10, and a storage rack 9 is fixedly connected to the side end of the air purifier 10. The storage rack 9 and the handheld welding gun 1 are interlocked. Several anti-slip textures 29 are provided on the outer end of the handheld welding gun 1.

[0033] During breaks, the handheld welding gun 1 can be temporarily stored in the storage ring 9, and the air purification device 10 can be moved by the handle 12. The anti-slip texture 29 on the outside of the handheld welding gun 1 can improve the grip stability and increase the grip friction, avoiding welding deviation or equipment falling due to slipping during operation.

[0034] In this solution, the operator holds a handheld welding gun 1 with anti-slip texture 29 and presses the pneumatic handle 7 to the working position. Simultaneously, multiple laser emitters 16 on the first circular frame 15 emit ring-shaped laser beams, forming a positioning aperture on the workpiece surface to assist in aligning the welding head 2 with the welding point. The multi-functional outer frame 3, supported by the circular outer frame 5 and the elastic vertical rod 6, ensures the relative position stability of the welding head 2 and the flexible conical cover 4, and can accommodate irregular welding surfaces. After the welding head 2 ignites the arc, the generated high-temperature fumes are quickly gathered by the flexible conical cover 4. The conical structure of the nozzle can create a local negative pressure zone. Combined with the suction force of the pump 23 inside the air purification device 10, the fumes enter the stretchable hose 11 through the dust suction interface 14. The stretchable hose 11 can flexibly extend and retract with the movement of the handheld welding gun 1, ensuring that the dust transmission path is always unobstructed, greatly improving the dust collection efficiency and reducing the impact of harmful fumes on operators and the environment. The synergistic effect of the structure improves the stability of operation and the accuracy of welding, while efficiently solving the dust collection problem under different working conditions, taking into account both work quality and environmental safety.

[0035] Prior to this, the miniature spectral sensor 18 on the second ring frame 17 scans the material spectrum of the welding area in real time through the reinforced protective window ring 19 at a scanning frequency of 50 times / second. The data is then transmitted to the intelligent controller panel 13 via the electrical wire rail 20. The intelligent controller panel 13 analyzes the spectral data collected by the miniature spectral sensor 18, identifies the welding material such as carbon steel or stainless steel, and automatically calls the preset purification program. When stainless steel is identified, the motor 26 drives the rotatable frame 25 to rotate, thus removing the fine filter screen 28. Switching to the working channel until reaching the working position, the fine filter achieves a 99.8% interception rate for 0.1-2μm metal particles. When aluminum alloy is identified, it switches to the coarse filter 27 to reach the working position. Switching to the coarse filter 27 can efficiently intercept large particulate impurities, while reducing the power of the pump 23 to reduce the air volume. This avoids the problem of excessive wind resistance caused by the fine filter 28 filtering first, and also prevents energy waste caused by redundant air volume. It avoids the limitation of a single purification mode in handling different fumes and ensures that all kinds of welding fumes can be efficiently intercepted.

[0036] When dust accumulates on the surface of the reinforced protective window ring 19, affecting the sensor's accuracy, the intelligent controller panel 13 triggers the sliding vertical rod 21 to rise along the electrical conductor rail 20, causing the flexible wiping surface 22 to rotate and wipe the window ring. The dust concentration is calculated by the light intensity attenuation value of the miniature spectral sensor 18, and the wiping cycle is dynamically adjusted according to the dust concentration signal detected by the miniature spectral sensor 18 to ensure the accuracy of spectral recognition. This avoids dust obstruction affecting the recognition accuracy of the miniature spectral sensor 18, ensures continuous accurate material recognition, reduces misjudgments of the purification scheme due to sensor failure, and guarantees long-term stable operation of the equipment.

[0037] Multiple laser emitters 16 on the first circular frame 15 emit ring-shaped laser beams, forming a positioning aperture on the workpiece surface. This helps to align the welding head 2 with the welding point, visually indicating the center position of the welding point and defining the boundary of the welding area. Operators do not need to repeatedly look down to compare or use additional measuring tools; by observing the relative position of the welding head 2 and the aperture, they can quickly align the welding head 2 with the preset welding point. This is especially effective in low-light working environments or in welding multiple welding points on complex workpieces, significantly reducing positioning errors and adjustment time.

[0038] When the pneumatic handle 7 is pressed, the dust extraction linkage switch 8 is triggered simultaneously. The linkage design between the pneumatic handle 7 and the dust extraction linkage switch 8 ensures that the purification system works synchronously when welding starts, and the pump 23 in the air purification equipment 10 starts. Conversely, it stops when welding starts. No additional manual operation is required to shut down the purification equipment, which simplifies the operation process and avoids the energy waste caused by the purification system running idle during non-welding stages.

[0039] During breaks, the handheld welding gun 1 can be temporarily stored in the storage ring 9, and the air purification device 10 can be moved by the handle 12. The anti-slip texture 29 on the outside of the handheld welding gun 1 can improve the grip stability and increase the grip friction, avoiding welding deviation or equipment falling due to slipping during operation.

[0040] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of elements and sequences, the use of numbers and letters, or other names in this specification are not intended to limit the order of the processes and methods described herein.

[0041] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy-saving and environmentally friendly welding machine with air purification function, comprising a handheld welding gun (1), wherein a welding head (2) is fixedly connected to the lower end of the handheld welding gun (1), characterized in that, A multi-functional outer frame (3) is fitted on the outer side of the welding head (2) near the handheld welding gun (1). The multi-functional outer frame (3) and the handheld welding gun (1) are fixedly connected. A flexible conical cover (4) is fixedly connected to the outer side of the multi-functional outer frame (3) away from the handheld welding gun (1). A dust suction port (14) is fixedly connected to the outer side of the flexible conical cover (4). An air purification device (10) is connected to the outer side of the dust suction port (14). A stretchable hose (11) is fixedly connected to the front end of the air purification device (10). A pneumatic handle (7) is movably connected to the lower end of the handheld welding gun (1). A second ring-shaped frame (17) located outside the welding head (2) is fixedly connected to the upper inner wall of the flexible conical cover (4). A micro-shaped frame is fixedly connected to the upper inner wall of the second ring-shaped frame (17). The second ring frame (17) is fixedly connected to a reinforced protective window ring (19) at the lower end of the second ring frame (17). The upper and lower inner walls of the air purification device (10) are symmetrically fixedly connected to a cross frame (24). The two cross frames (24) are fixedly connected to a motor (26) at one end close to each other. A rotatable frame (25) is installed between the output ends of the two motors (26). A coarse filter screen (27) and a fine filter screen (28) are fixedly connected to the inner ends of the rotatable frame (25) respectively. The purification device (10) is fixedly connected to a pump (23) that cooperates with the rotatable frame (25). The input end of the pump (23) is facing the working surface of the rotatable frame (25). The pump (23), the rotatable frame (25), and the stretchable hose (11) are connected in sequence.

2. The energy-saving and environmentally friendly welding machine with air purification function according to claim 1, characterized in that, The stretchable hose (11) and the vacuum port (14) are detachably connected, and the front end of the air purification device (10) is fixedly connected to the smart controller panel (13).

3. The energy-saving and environmentally friendly welding machine with air purification function according to claim 1, characterized in that, The lower end of the handheld welding gun (1) is fixedly connected to a dust suction linkage switch (8), and the dust suction linkage switch (8) and the pneumatic grip (7) cooperate with each other.

4. The energy-saving and environmentally friendly welding machine with air purification function according to claim 1, characterized in that, The outer end of the second ring frame (17) is fixedly connected to an electrical conductor rail (20), and the output end of the electrical conductor rail (20) is equipped with a sliding vertical rod (21).

5. An energy-saving and environmentally friendly welding machine with air purification function according to claim 4, characterized in that, A flexible wiping surface (22) is fixedly connected to the upper side of the vertical end of the sliding vertical rod (21), and the flexible wiping surface (22) and the lower inner wall of the reinforced protective window ring (19) are in contact with each other.

6. The energy-saving and environmentally friendly welding machine with air purification function according to claim 5, characterized in that, The lower end of the multifunctional outer frame (3) is fixedly connected to a first ring frame (15) located between the welding head (2) and the second ring frame (17).

7. An energy-saving and environmentally friendly welding machine with air purification function according to claim 6, characterized in that, The lower end of the first circular frame (15) is fixedly connected to a plurality of laser emitters (16) evenly distributed along the circumference, and the outer end of the multifunctional outer frame (3) and the outer end of the flexible conical cover (4) are respectively fixedly connected to a circular outer frame (5).

8. An energy-saving and environmentally friendly welding machine with air purification function according to claim 7, characterized in that, The two circular outer frames (5) are arranged vertically opposite each other, and a plurality of elastic vertical rods (6) evenly distributed along the circumference are fixedly connected between the two circular outer frames (5).

9. An energy-saving and environmentally friendly welding machine with air purification function according to claim 1, characterized in that, The air purifier (10) is fixedly connected to the upper middle part of the handle (12), and the air purifier (10) is fixedly connected to the side end of the storage rack (9).

10. An energy-saving and environmentally friendly welding machine with air purification function according to claim 9, characterized in that, The storage rack (9) and the handheld welding gun (1) are interlocked, and the outer end of the handheld welding gun (1) is provided with several anti-slip textures (29).

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