Welding workstation for smoke dust treatment and collection

Abstract

The utility model relates to the technical field of welding equipment, in particular to a welding work station for smoke dust treatment and collection, which aims at solving the technical problem of overcoming the defects of smoke dust treatment equipment in the prior art and is mainly realized through the following technical scheme. The system comprises a plurality of workshops arranged side by side and dust collecting devices connected with the workshops through pipelines, dust collecting cavities are formed in the tops of the workshops, flow guide structures are further arranged at the tops in the workshops, air supplementing structures are further arranged at the bottoms of the workshops, and each flow guide structure comprises a fixed flow guide plate, an adjusting flow guide plate and a flow guide adjusting and protecting flow guide plate; the air supplement structure comprises an air supply part, an outer air guide cavity and an inner air guide cavity, a balanced air pressure environment in which air suction and air supplement do not interfere with each other is formed in the workshop, harmful gas is prevented from overflowing through the flow guide structure, arrangement of the welding process is guaranteed, and the whole frame is matched with different welding robots and facilitates unified dust collection treatment of multiple welding devices.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and specifically to a welding workstation for fume treatment and collection. Background Technology

[0002] Welding generates a large amount of toxic and harmful welding fumes. These fumes are tiny and highly sticky, severely polluting the environment and seriously endangering the health of welding technicians. While welding robots replace humans in welding operations, avoiding direct contact with radiation and fumes, they also indirectly endanger worker safety.

[0003] Existing welding fume dust removal technologies and equipment mostly focus on exhaust and filtration of welding fumes. However, exhausting air can cause pressure imbalances, affecting welding operations. Therefore, to ensure pressure balance, a supplementary air supply device is activated to maintain stable internal airflow circulation. However, simultaneous exhaust and supplementary air operation can lead to poor capture capacity of the exhaust system, resulting in ineffective absorption and removal of pollutants. Furthermore, attempting to improve filtration efficiency can cause internal airflow turbulence, further hindering welding operations. In addition, existing welding fume dust removal equipment suffers from problems such as heavy weight, large size, high energy consumption, high cost, and large footprint, making it difficult to integrate with welding workstations. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defects of existing fume treatment equipment, thereby providing a welding workstation for fume treatment and collection.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A welding workstation for treating and collecting fumes includes multiple parallel work chambers and a dust collection device connected to the work chamber ducts. Each work chamber has a dust collection chamber at the top with an air outlet at the top. A makeup air duct is connected to the bottom of each work chamber. Inside each work chamber, a workbench and a lifting robot base are arranged in parallel. A welding robot is mounted on the robot base and has a wire feeding structure electrically connected to it. A flow guiding structure is also provided at the top of each work chamber, corresponding to the workbench. A makeup air structure is also provided at the bottom of each work chamber. Multiple makeup air inlets are arrayed on opposite sides of each work chamber.

[0007] By adopting the above technical solution, multiple parallel work areas are connected to a single dust collection device for processing, which facilitates the overall pipeline layout and reduces the footprint of the dust collection device. The pipeline connection avoids the need for additional matching equipment, thus improving the device's compatibility. During welding operations, the air guide structure works in conjunction with the air outlet to perform exhaust and dust collection, sucking out harmful gases and fumes from the work area and reducing the harm to the working environment. While exhausting, a makeup air device is installed at the bottom of the work area to balance the internal air pressure. The air outlet of the makeup air structure is staggered with the air outlet to avoid direct airflow collision and avoid affecting the welding environment. The makeup air structure can also be used for inert gas makeup, providing gas protection during special gas welding.

[0008] Furthermore, a set of feeding doors is hinged at one end of the workroom near the workbench, and the height of the feeding doors is no more than two-thirds of the height of the workroom. A set of double doors is hinged at the other end of the workroom, and the height of the double doors is the same as the height of the side of the workroom. An operating window is slidably installed on the front side of the workroom near the top, and an observation window is slidably installed on the rear side of the workroom near the workbench.

[0009] By adopting the above technical solution, the feeding door facilitates the loading and unloading of workpieces on the workbench, the double doors enable the overall device to be inspected and unloaded, the operating window allows for manual welding, and the observation window allows for observation of the welded parts from another angle.

[0010] Furthermore, the air outlet is connected to an air outlet duct, the outer sides of the dust collection chamber are rounded at both ends, and a flow guiding structure is provided in the dust collection chamber corresponding to the workbench. The flow guiding structure includes a fixed flow guiding plate, an adjustable flow guiding plate, and a flow guiding adjustment. The fixed flow guiding plate is inclinedly disposed in the dust collection chamber at the end away from the welding robot. The distance between the top of the fixed flow guiding plate and the welding robot is less than the distance between the bottom of the fixed flow guiding plate and the welding robot. The bottom of the fixed flow guiding plate is fixed to one side of the dust collection chamber. The adjustable flow guiding plate is disposed opposite to the fixed flow guiding plate and is movably disposed near the middle of the dust collection chamber. The flow guiding adjustment is disposed at both ends of the top of the adjustable flow guiding plate and controls the rotation of the adjustable flow guiding plate.

[0011] By adopting the above technical solution, a flow guiding structure is set up in conjunction with the air outlet to extract internal smoke and dust, thereby completing the smoke and dust collection operation, achieving a clean and tidy environment in the work area, avoiding the welding parts from being affected by welding fumes, and limiting the welding area to a closed space to avoid affecting external workers.

[0012] Furthermore, the flow guide adjustment includes an adjustment motor, a meshing drive gear and a driven gear, the drive gear being positioned above the driven gear, the driven gear being sleeved on a hinge shaft at the top of the adjustment guide plate, the adjustment motor being positioned at the top outside the dust collection chamber and driving the drive gear to rotate, and an arc-shaped support plate being provided inside the dust collection chamber corresponding to the adjustment guide plate, the support plate being positioned on opposite sides inside the dust collection chamber and positioned near the bottom of the adjustment guide plate.

[0013] By adopting the above technical solution, the motor is connected to the drive gear. The rotation of the drive gear drives the rotation of the driven gear, thereby controlling the swing of the adjustable guide plate coaxial with the driven gear. This causes the adjustable guide plate to adjust the size of the ventilation gap between itself and the fixed guide plate, thereby controlling the exhaust force at that point. Adjusting the angle of the guide plate also ensures that the welding torch on the welding robot is completely covered by the air outlet, avoiding incomplete adsorption of harmful gases. In addition, the adjustable guide plate is also adjusted according to the height of the welding robot to avoid structural interference during the welding process, which would affect the movement of the welding robot.

[0014] Furthermore, the flow guiding structure also includes an inclined protective flow guiding plate, which is set on the inner side wall of the end of the work area near the workbench. The protective flow guiding plate is bolted to the side wall of the work area. The distance between the top of the protective flow guiding plate and the inner side wall of the work area is less than the distance between the bottom of the protective flow guiding plate and the inner side wall of the work area. Multiple waist-shaped air guiding holes are arrayed on the protective flow guiding plate. An inclined upward buffer plate extends from the bottom of the protective flow guiding plate away from the workbench.

[0015] By adopting the above technical solution, a protective guide plate is set to protect the side wall that is prone to splashing welding slag and to guide the flow of harmful gases. The buffer plate helps to improve the guiding effect and makes the airflow smooth and stable.

[0016] Furthermore, the air supply structure includes an air supply component, an external air intake chamber, and an internal air guide chamber. The air supply component is connected to the external air intake chamber through an air supply pipe. The external air intake chamber covers the surface of the air supply port. The internal air guide chamber is located in the work area corresponding to the external air intake chamber. An air supply port is provided through the bottom of the internal air guide chamber along its length. An air expansion plate extends from the bottom of the internal air guide chamber towards the center of the work area. The air expansion plate is arranged along the length of the internal air guide chamber.

[0017] By adopting the above technical solution, the air supply component is connected to the external air intake cavity through the air supply pipe and then enters the internal air guide cavity through the unsealed opening, which slows down the air supply airflow and avoids the airflow turbulence caused by direct air supply; the air supply outlet supplies air to the ground to avoid the problem of airflow collision with the air outlet at the top, effectively reducing turbulence during the air extraction and supply process, and the dual-cavity setting of the external air intake cavity and the internal air guide cavity can also reduce the leakage of air supply.

[0018] Furthermore, an air intake extends from the bottom of the air outlet duct near the air outlet, and the diameter of the air intake gradually increases from top to bottom. A reinforcing frame is also provided around the bottom of the air outlet. All air outlet ducts are connected to a collecting duct, which is connected to a dust collection device. Each air outlet duct is equipped with a corresponding control valve.

[0019] By adopting the above technical solutions, the air intake is enlarged to facilitate the suction of internal gas. The reinforcing frame at the bottom of the air outlet ensures the structural stability of the air outlet and avoids loosening and damage to the structure caused by friction and vibration during suction. The control valve is set to correspond to the air outlet duct and activates the corresponding air outlet duct according to the usage of the work area to avoid waste of resources.

[0020] Furthermore, the dust collection device includes a dust collection box, a filter element, and a slag collection element. The air collection pipe leads to the top of the dust collection box. The filter element and the slag collection element are both installed inside the dust collection box. The filter element is installed above the slag collection element and includes multiple layers of filter screens. An exhaust port is also provided on the side of the dust collection box near the bottom, and an exhaust pipe is connected to the exhaust port.

[0021] By adopting the above technical solution, the filter elements with multi-layer filter screens can better adsorb and filter harmful substances in the fumes. The filter screens can be made of strong adsorption materials such as composite fibers and activated carbon, or can be set according to the fumes generated by the welding wire to achieve a high-efficiency purification effect. The slag collection element is used to separate and collect small and light welding slag or fumes to achieve gas-solid separation.

[0022] In summary, the technical solution of this utility model has the following advantages:

[0023] 1. The welding workstation for fume treatment and collection provided by this utility model allows multiple parallel workstations to be uniformly connected to a single dust collection device for treatment, which facilitates the overall pipeline layout and reduces the footprint of the dust collection device. The pipeline connection avoids the need for additional connecting matching equipment, thereby improving the device's connectivity and adaptability.

[0024] 2. The welding workstation for fume treatment and collection provided by this utility model uses a flow guide structure in conjunction with an air outlet to perform dust collection during welding operations. It draws out harmful gases and fumes from the work area, reducing the harm to the working environment. At the same time as the exhaust, a make-up air device is installed at the bottom of the work area to balance the internal air pressure. The air outlet of the make-up air structure is misaligned with the air outlet to avoid direct airflow collision, thus avoiding affecting the welding environment and effectively improving welding quality. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of a welding workstation for fume treatment and collection provided in one embodiment of the present utility model;

[0027] Figure 2 This is a partial structural diagram of the workshop and dust collection device provided in one embodiment of the present invention;

[0028] Figure 3 This is a partial structural diagram of a workspace provided in one embodiment of the present utility model;

[0029] Figure 4 This is a partial structural diagram of the air guiding structure and the air supply structure provided in one embodiment of the present utility model;

[0030] Figure 5 This is a partial structural schematic diagram of the protective guide plate provided in one embodiment of the present utility model;

[0031] Figure 6 This is a partial structural diagram of the flow-guiding adjustment provided in one embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Work area; 11. Air supply vent; 12. Feed door; 13. Double door; 14. Operating window; 15. Observation window; 2. Dust collection chamber; 21. Air outlet; 211. Air outlet duct; 2111. Air collection duct; 2112. Control valve; 212. Air intake; 213. Reinforcing frame; 22. Air supply duct; 23. Support plate; 3. Workbench; 4. Robot base; 41. Welding robot; 42. Wire feeding structure; 6. Dust collection device; 61. Dust collection box; 611. Exhaust fan 6111, Exhaust duct; 62, Filter element; 621, Filter screen; 63, Slag collection element; 7, Flow guiding structure; 71, Fixed flow guide plate; 72, Adjustable flow guide plate; 73, Flow guiding adjustment; 731, Adjusting motor; 732, Drive gear; 733, Driven gear; 74, Protective flow guide plate; 741, Air guide hole; 742, Buffer plate; 8, Air supply structure; 81, Air supply element; 82, External air intake cavity; 83, Internal air guide cavity; 831, Air outlet; 832, Air expansion plate. Detailed Implementation

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0035] A welding workstation for fume treatment and collection, such as Figure 1 , Figure 2 and Figure 3 As shown, the system includes multiple parallel workrooms 1 and a dust collection device 6 connected to the workrooms 1 via pipes. Each workroom 1 has a dust collection chamber 2 at its top, with rounded outer edges at both ends. An air outlet 21 is located at the top of the dust collection chamber 2, connected to an air outlet duct 211. All air outlet ducts 211 are connected to a single air collection pipe 2111, which in turn connects to the dust collection device 6. The multiple parallel workrooms 1 are all connected to a single dust collection device 6 for processing, facilitating overall pipework layout and reducing the footprint of the dust collection device 6. Pipeline connections eliminate the need for additional matching equipment, improving device compatibility. Each air outlet duct 211 is equipped with a corresponding control valve 2112. The control valve 2112 is configured to activate the corresponding air outlet duct 211 based on the usage of the workrooms 1, preventing resource waste. A makeup air duct 22 is also connected to the bottom of each workroom 1. During welding operations, the air guide structure 7 works in conjunction with the air outlet 21 to perform exhaust and dust collection operations, drawing out harmful gases and fumes from the workroom 1 to reduce the harm to the working environment. At the same time, an air supply component is installed at the bottom of the workroom 1 to balance the internal air pressure. The air outlet of the air supply structure 8 is offset from the air outlet 21 to avoid direct airflow collision and avoid affecting the welding environment. The air supply structure 8 can also be used for inert gas supply, which can provide gas protection when welding with special gases.

[0036] like Figure 1 and Figure 2 As shown, the dust collection device 6 includes a dust collection box 61, a filter element 62, and a slag collection element 63. An air collection pipe 2111 leads into the top of the dust collection box 61. Both the filter element 62 and the slag collection element 63 are located inside the dust collection box 61. The filter element 62 is positioned above the slag collection element 63 and includes multiple layers of filter screens 621. An exhaust port 611 is also provided near the bottom of the dust collection box 61, and an exhaust pipe 6111 is connected to the exhaust port 611. The filter element 62, with its multiple layers of filter screens 621, can better adsorb and filter harmful substances in the fumes. The filter screens 621 can be made of composite fibers, activated carbon, or other strong adsorption materials, or can be configured according to the type of fumes generated by the welding wire, achieving a highly efficient purification effect. The slag collection element 63 is used to separate and collect small and light welding slag or fumes, achieving gas-solid separation. The slag collection element 63 can be a centrifuge or a cyclone separator.

[0037] like Figure 1 , Figure 2 and Figure 3As shown, a workbench 3 and a lifting robot base 4 are arranged side by side inside the work area 1. A welding robot 41 is installed on the robot base 4. A wire feeding structure 42 is provided on the welding robot 41. The wire feeding structure 42 is electrically connected to the welding robot 41.

[0038] A set of feed doors 12 is hinged to the lower left half of workroom 1. The height of feed doors 12 is no more than two-thirds of the height of workroom 1. A set of double doors 13 is hinged to the right end of workroom 1. The height of double doors 13 is the same as the side height of workroom 1. A set of operating windows 14 is slidably installed on the upper front half of workroom 1. A set of observation windows 15 is slidably installed on the left rear half of workroom 1. The feed doors 12 facilitate the loading and unloading of workpieces on workbench 3. The double doors 13 enable the maintenance and unloading of the entire device. Welding can be performed manually at the operating windows 14. The observation windows 15 allow for observation of the welded parts from another angle.

[0039] like Figure 2 and Figure 4 As shown, the air supply structure 8 includes an air supply component 81, an external air intake cavity 82, and an internal air guide cavity 83. The external air intake cavity 82 and the internal air guide cavity 83 are arranged opposite to each other. The air supply component 81 is connected to the external air intake cavity 82 through the air supply pipe 22. The external air intake cavity 82 covers the surface of the air supply port 11. The internal air guide cavity 83 is set in the work room 1 at the position corresponding to the external air intake cavity 82. An air supply port 831 is opened through the bottom of the internal air guide cavity 83 along its length direction. An air expansion plate 832 extends from the bottom of the internal air guide cavity 83 towards the center of the work room 1. The air expansion plate 832 is arranged along the length direction of the internal air guide cavity 83. The air supply component 81 is connected to the external air intake chamber 82 through the air supply pipe 22 and then enters the internal air guide chamber 83 through the unsealed opening, which slows down the air supply airflow and avoids the airflow turbulence caused by direct air supply; the air supply outlet 831 supplies air to the ground to avoid the problem of airflow collision with the top air outlet 21, effectively reducing turbulence during the exhaust and supply process. The dual-chamber setting of the external air intake chamber 82 and the internal air guide chamber 83 can also reduce the leakage of air supply.

[0040] like Figure 5 As shown, an air intake 212 extends from the bottom of the air outlet 211 near the air outlet 21. The diameter of the air intake 212 gradually increases from top to bottom, which facilitates the suction of internal gas from the air outlet 21. A reinforcing frame 213 is also provided around the bottom of the air outlet 21 to ensure the structural stability of the air outlet 21 and to prevent the structure from loosening or being damaged due to friction and vibration during suction.

[0041] like Figure 4 , Figure 5 and Figure 6As shown, a flow guiding structure 7 is installed in the dust collection chamber 2 corresponding to the workbench 3. The flow guiding structure 7 includes a fixed flow guiding plate 71, an adjustable flow guiding plate 72, and a flow guiding adjustment 73. The fixed flow guiding plate 71 is inclined and installed at the end of the dust collection chamber 2 away from the welding robot 41. The distance between the top of the fixed flow guiding plate 71 and the welding robot 41 is less than the distance between the bottom of the fixed flow guiding plate 71 and the welding robot 41. The bottom of the fixed flow guiding plate 71 is fixed to one side of the dust collection chamber 2. The adjustable flow guiding plate 72 is installed opposite to the fixed flow guiding plate 71 and is movably installed near the middle of the dust collection chamber 2. The flow guiding adjustment 73 is installed at both ends of the top of the adjustable flow guiding plate 72 and controls the rotation of the adjustable flow guiding plate 72. The flow guiding structure 7, together with the air outlet 21, is used to suck up the internal dust and complete the dust collection operation, so as to keep the environment inside the work room 1 clean and tidy, avoid the welding parts from being affected by welding dust, and limit the welding area to a closed space to avoid affecting the external workers.

[0042] like Figure 4 , Figure 5 and Figure 6 As shown, the airflow guiding structure 7 also includes an inclined protective airflow guiding plate 74. The protective airflow guiding plate 74 is installed on the inner side wall of the end of the work chamber 1 near the workbench 3. The protective airflow guiding plate 74 is bolted to the side wall of the work chamber 1 (not shown in the figure). The distance between the top of the protective airflow guiding plate 74 and the inner side wall of the work chamber 1 is less than the distance between the bottom of the protective airflow guiding plate 74 and the inner side wall of the work chamber 1. Multiple waist-shaped airflow guiding holes 741 are arrayed on the protective airflow guiding plate 74. An inclined upward buffer plate 742 extends from the bottom of the protective airflow guiding plate 74 away from the workbench 3. The protective airflow guiding plate 74 protects the side wall from easily splashed welding slag and also guides harmful gases. The buffer plate 742 helps to improve the airflow guiding effect, making the airflow smooth and stable.

[0043] like Figure 5 and Figure 6As shown, the flow guide adjustment 73 includes an adjustment motor 731, a meshing drive gear 732 and a driven gear 733. The drive gear 732 is positioned above the driven gear 733, and the driven gear 733 is mounted on the hinge shaft at the top of the adjustment guide plate 72. The adjustment motor 731 is positioned at the top outside the dust collection chamber 2 and drives the drive gear 732 to rotate. An arc-shaped support plate 23 is also provided in the dust collection chamber 2 corresponding to the adjustment guide plate 72. The support plate 23 is positioned on opposite sides inside the dust collection chamber 2 and is located near the bottom of the adjustment guide plate 72. The adjusting motor 731 is connected to the driving gear 732. The rotation of the driving gear 732 drives the driven gear 733 to rotate, thereby controlling the swing of the adjusting guide plate 72, which is coaxial with the driven gear 733. This causes the adjusting guide plate 72 to adjust the size of the ventilation gap between itself and the fixed guide plate 71, thereby controlling the exhaust force at that point. The angle of the adjusting guide plate 72 also ensures that the welding torch on the welding robot 41 is completely covered by the air outlet 21, avoiding incomplete adsorption of harmful gases. In addition, the adjusting guide plate 72 is also adjusted according to the height of the welding robot 41 to avoid structural interference during the welding process and to prevent it from affecting the movement of the welding robot 41.

[0044] The working principle and usage of this welding workstation for fume treatment and collection are as follows: Before use, adjust the angle of the guide plate 72 according to the height of the workpiece to be welded by adjusting the guide plate 73 to avoid and cover the welding robot 41. Then, push the workbench 3 into the work room 1 through the feed door 12. During welding, the control valve 2112 is opened to control the operation of the exhaust pipe 211 and the dust collection device 6. The air supply structure provides supplementary air, and the work room 1 forms a balanced air pressure environment in which the exhaust and supplementary air do not interfere with each other. It can be used for unified dust collection and treatment of multiple welding devices.

[0045] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A welding workstation for treating and collecting fumes, characterized in that, The device includes multiple parallel work rooms (1) and a dust collection device (6) connected to the work room (1) by pipes. The top of the work room (1) is provided with a dust collection chamber (2) and an air outlet (21) is opened at the top of the dust collection chamber (2). The bottom of the work room (1) is connected to a make-up air pipe (22). Inside the work room (1), a workbench (3) and a lifting robot base (4) are arranged in parallel. A welding robot (41) is installed on the robot base (4). A wire feeding structure (42) is provided on the welding robot (41). The wire feeding structure (42) is electrically connected to the welding robot (41). A flow guiding structure (7) is also provided at the top of the work room (1). The flow guiding structure (7) is set corresponding to the workbench (3). A make-up air structure (8) is also provided at the bottom of the work room (1). Multiple make-up air ports (11) are arrayed on opposite sides of the work room (1).

2. The welding workstation for fume treatment and collection according to claim 1, characterized in that, A set of feeding doors (12) is hinged at one end of the workroom (1) near the workbench (3). The height of the feeding doors (12) is no more than two-thirds of the height of the workroom (1). A set of double doors (13) is hinged at the other end of the workroom (1). The height of the double doors (13) is the same as the height of the side of the workroom (1). A set of operating windows (14) is slidably installed on the front side of the workroom (1) near the top. A set of observation windows (15) is slidably installed on the rear side of the workroom (1) near the workbench (3).

3. The welding workstation for fume treatment and collection according to claim 1, characterized in that, The air outlet (21) is connected to an air outlet duct (211). The dust collection chamber (2) has rounded outer arcs at both ends. A flow guide structure (7) is provided in the dust collection chamber (2) corresponding to the workbench (3). The flow guide structure (7) includes a fixed flow guide plate (71), an adjustable flow guide plate (72), and a flow guide adjustment (73). The fixed flow guide plate (71) is inclinedly arranged in the dust collection chamber (2) at one end away from the welding robot (41). The distance between the top of the fixed flow guide plate (71) and the welding robot (41) is less than the distance between the bottom of the fixed flow guide plate (71) and the welding robot (41). The bottom of the fixed flow guide plate (71) is fixed to one side of the dust collection chamber (2). The adjustable flow guide plate (72) is arranged opposite to the fixed flow guide plate (71) and is movably arranged in the dust collection chamber (2) near the middle. The flow guide adjustment (73) is arranged at both ends of the top of the adjustable flow guide plate (72) and controls the rotation of the adjustable flow guide plate (72).

4. A welding workstation for fume treatment and collection according to claim 3, characterized in that, The flow guide adjustment (73) includes an adjustment motor (731), a meshing drive gear (732) and a driven gear (733). The drive gear (732) is located above the driven gear (733), and the driven gear (733) is sleeved on the hinge shaft at the top of the adjustment guide plate (72). The adjustment motor (731) is located at the top outside the dust collection chamber (2) and drives the drive gear (732) to rotate. An arc-shaped support plate (23) is also provided in the dust collection chamber (2) corresponding to the adjustment guide plate (72). The support plate (23) is located on opposite sides in the dust collection chamber (2) and is located near the bottom of the adjustment guide plate (72).

5. A welding workstation for fume treatment and collection according to claim 4, characterized in that, The flow guiding structure (7) also includes an inclined protective flow guiding plate (74). The protective flow guiding plate (74) is set on the inner side wall of the end of the work room (1) near the workbench (3). The protective flow guiding plate (74) is bolted to the side wall of the work room (1). The distance between the top of the protective flow guiding plate (74) and the inner side wall of the work room (1) is less than the distance between the bottom of the protective flow guiding plate (74) and the inner side wall of the work room (1). Multiple waist-shaped air guiding holes (741) are arrayed on the protective flow guiding plate (74). An inclined upward buffer plate (742) extends from the bottom of the protective flow guiding plate (74) away from the workbench (3).

6. A welding workstation for fume treatment and collection according to claim 1, characterized in that, The air supply structure (8) includes an air supply component (81), an external air intake cavity (82), and an internal air guide cavity (83). The air supply component (81) is connected to the external air intake cavity (82) through an air supply pipe (22). The external air intake cavity (82) covers the surface of the air supply port (11). The internal air guide cavity (83) is located in the work room (1) corresponding to the external air intake cavity (82). An air supply port (831) is provided through the bottom of the internal air guide cavity (83) along its length direction. An air expansion plate (832) extends from the bottom of the internal air guide cavity (83) towards the center of the work room (1). The air expansion plate (832) is arranged along the length direction of the internal air guide cavity (83).

7. A welding workstation for fume treatment and collection according to claim 3, characterized in that, The air outlet duct (211) has an air intake (212) extending from the bottom of one end near the air outlet (21). The diameter of the air intake (212) increases from top to bottom. The bottom of the air outlet (21) is also surrounded by a reinforcing frame (213). The air outlet duct (211) is connected to the air collection duct (2111), which is connected to the dust collection device (6). Each air outlet duct (211) is equipped with a corresponding control valve (2112).

8. A welding workstation for fume treatment and collection according to claim 7, characterized in that, The dust collection device (6) includes a dust collection box (61), a filter element (62), and a slag collection element (63). The air collection pipe (2111) leads to the top of the dust collection box (61). The filter element (62) and the slag collection element (63) are both installed inside the dust collection box (61). The filter element (62) is installed above the slag collection element (63) and includes multiple layers of filter screens (621). The dust collection box (61) also has an exhaust port (611) near the bottom. An exhaust pipe (6111) is connected to the exhaust port (611).

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