Welding fume suction hood with automatic positioning function

Abstract

The utility model relates to the technical field of welding processing, and discloses an automatic positioning welding fume suction hood which comprises a welding workshop and a top plate fixedly installed on the outer surface of the welding workshop, and a first installation base is fixedly installed at the end, close to the interior of the welding workshop, of the top plate. A moving seat, a flame positioner and a fixing frame are fixedly mounted on the inner surface of the welding workshop, and a second mounting seat, a motor frame and a sliding seat are fixedly mounted on the outer surface of the moving seat. According to the welding fume suction hood capable of achieving automatic positioning, through transmission cooperation of a plurality of servo motors and the lead screw, accurate monitoring matched with multi-dimensional adjustment of an upper flame positioner can be achieved, and the suction hood can adapt to weldments of different shapes, sizes and welding process requirements, and the weldments are small precise weldments or large steel structural parts; no matter in plane welding or three-dimensional structure welding, accurate positioning of the air suction cover can be achieved, the universality of the device is improved, the device can be widely applied to various welding workshops, and the practicability of the whole device is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding processing technology, specifically to an automatically positioned welding fume extraction hood. Background Technology

[0002] Welding is a critical processing step, widely used in industries such as automobile manufacturing, machining, shipbuilding, and steel structure construction. During the welding process, the welding rod or wire reacts violently with the workpiece under high temperature, generating a large amount of welding fumes. These fumes contain a variety of complex components, such as metal oxide particles and harmful gases, which quickly diffuse into the workshop air, causing reduced visibility and a sharp deterioration in air quality.

[0003] With increasingly stringent environmental regulations and continuous upgrades in the control of air pollutant emissions from industrial production, direct emissions of welding fumes not only endanger the health of workers in the workshop, causing occupational health problems such as respiratory diseases and pneumoconiosis, but also pollute the surrounding atmospheric environment. Therefore, enterprises urgently need efficient fume collection and treatment methods to meet environmental standards, fulfill their social responsibilities, and protect the occupational health rights of their employees.

[0004] Chinese Utility Model Patent Publication No. CN 215032175 U discloses a fume extraction device for welding. This device first connects a negative pressure fan to a purification chamber to prevent unfiltered fumes from contacting the fan and causing blockages that reduce extraction efficiency. Since metal filter cartridges are easily deformed from prolonged contact with high-temperature fumes, a detachable middle section for the metal filter cartridge facilitates timely replacement or cleaning, improving its filtration effect. However, this fume extraction device requires manual pulling or operation to move it above the welding point. In situations where the welding point is not fixed, this increases the time required for the welding operator to pull or operate it, reducing welding efficiency and leading to longer preparation times, resulting in more cumbersome procedures and preparation work. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide an automatically positioned welding fume suction hood, which can effectively solve the problem that the existing technology requires manual pulling or operation to move it above the welding point. In the case of welding points that are not fixed, this increases the time for welding operators to pull or operate, which not only reduces the efficiency of welding operations, but also easily leads to long preparation time, cumbersome work steps and a lot of preparation work.

[0006] The technical solution adopted by this utility model is: an automatically positioned welding fume extraction hood, including a welding workshop and a top plate fixedly installed on the outer surface of the welding workshop. A mounting base is fixedly installed at one end of the top plate near the interior of the welding workshop. A movable base, a flame positioner, and a fixing frame are fixedly installed on the inner surface of the welding workshop. A second mounting base, a motor frame, and a slide are fixedly installed on the outer surface of the movable base. A servo motor is fixedly installed on the outer surface of the motor frame. A lead screw is fixedly installed on the output shaft of the servo motor. A slider is threadedly connected to the outer surface of the lead screw. A movable frame 1 is fixedly installed. A servo motor 2 is fixedly installed on the outer surface of the movable frame 1. A lead screw 2 is fixedly installed on the output shaft of the servo motor 2. The movable frame 2 is threadedly connected to the outer surface of the lead screw 2. A connecting block 1 is fixedly installed on the outer surface of the movable frame 2. A servo motor 4 is fixedly installed on the outer surface of the fixed frame. A lead screw 3 is fixedly installed on the output shaft of the servo motor 4. A fixed plate is threadedly connected to the outer surface of the lead screw 3. A connecting flange 1 is fixedly installed on the outer surface of the fixed plate. A connecting flange 2 is provided on the outer surface of the connecting flange 1. A suction hood body is fixedly installed on the outer surface of the fixed plate.

[0007] Preferably, a positioning bolt is threadedly connected to the outer surface of the mounting base, penetrating the mounting base and extending into the interior of the top plate. A fixing sleeve is fixedly installed at the other end of the mounting base away from the top plate, and a flame positioner is fixedly installed at the other end of the fixing sleeve away from the top plate.

[0008] Through the above technical solution, the threaded positioning bolt facilitates the installation and removal of the mounting base on the top plate. The position of the flame positioner can be flexibly adjusted according to actual needs, improving the installation adaptability of the equipment. The flame positioner can accurately detect the position of the welding flame, providing a key reference for the automatic positioning of the subsequent suction hood body, ensuring that the suction hood can capture the welding fumes in a timely and accurate manner, improving the fume collection efficiency and improving the air quality in the workshop.

[0009] Preferably, the slider one is slidably connected to the movable seat, and the slider one is adapted to the lead screw one.

[0010] Through the above technical solution, the sliding connection between slider one and the moving base, and the adaptation with lead screw one, ensure the stability and precision of the suction hood's horizontal movement. By precisely controlling the rotation angle and speed of lead screw one with servo motor one, accurate adjustment of the suction hood's horizontal position can be achieved, effectively tracking changes in the welding position, improving the efficiency of fume collection, and reducing fume overflow.

[0011] Preferably, the second movable frame is adapted to the second lead screw, and the second movable frame is slidably connected to the first movable frame.

[0012] Through the above technical solution, the adaptation of the second movable frame to the second lead screw and the sliding connection with the first movable frame enable the precise vertical movement of the suction hood. This, combined with the horizontal adjustment, allows the suction hood to be flexibly positioned in three-dimensional space, better adapting to weldments of different shapes and heights, and improving the equipment's adaptability to complex welding conditions.

[0013] Preferably, a servo motor three is fixedly mounted on the outer surface of the first connecting block, a second connecting block is fixedly mounted on the output shaft of the third servo motor, and a fixing bracket is fixedly mounted on the outer surface of the second connecting block.

[0014] With the above technical solution, when the angle of the suction hood needs to be adjusted, the servo motor three is started. The servo motor three drives the connecting block two to rotate, thereby driving the fixed frame and the suction hood body fixed on it to rotate around a specific axis. The setting of the servo motor three realizes the automatic adjustment of the suction hood angle. It can flexibly change the orientation of the suction hood according to the requirements of the welding process and the shape of the weldment, thus improving the efficiency and comprehensiveness of dust collection.

[0015] Preferably, a connecting pipe is provided at the other end of the connecting flange two away from the connecting flange one, and a vacuum cleaner body located inside the welding workshop is provided at the other end of the connecting pipe away from the connecting flange two. The vacuum hood body, the connecting pipe and the vacuum cleaner body are connected, and the connecting pipe is a threaded pipe.

[0016] Through the above technical solutions, the threaded connection pipe is easy to install, disassemble and maintain. When the connection pipe is blocked or damaged, it can be quickly replaced or cleaned, reducing equipment downtime. The interconnected design of the suction hood body, the connection pipe and the vacuum cleaner body ensures the continuity of dust collection and treatment. The vacuum cleaner body can promptly suck up and purify the dust collected by the suction hood, effectively reducing the dust concentration in the workshop, improving the working environment, protecting the health of workers, and also meeting environmental protection requirements.

[0017] Preferably, a slider 2 is fixedly installed on the outer surface of the movable frame 1, a limiting seat is fixedly installed on the outer surface of the slider, and the limiting seat is fixedly installed on the inner surface of the welding workshop.

[0018] Through the above technical solution, the sliding cooperation between slider 2 and slide block provides stable support and guidance for moving frame 1, making the suction hood more stable and smooth during horizontal movement, reducing the emission of smoke and dust caused by shaking or vibration, and improving the effect of smoke and dust collection.

[0019] Compared with the prior art, this utility model provides an automatically positioned welding fume extraction hood, which has the following beneficial effects:

[0020] 1. This automatically positioned welding fume extraction hood features a threaded positioning bolt that facilitates the installation and removal of the mounting base on the top plate. The position of the flame positioner can be flexibly adjusted according to actual needs, improving the equipment's installation adaptability. The flame positioner can accurately detect the position of the welding flame, providing crucial reference for the subsequent automatic positioning of the extraction hood body. This ensures that the extraction hood can capture welding fumes in a timely and accurate manner, improving fume collection efficiency, improving workshop air quality, and avoiding the need for manual pulling or operation to move it above the welding point. In cases where the welding point is not fixed, this reduces the time required for welding operators to pull or operate the hood, thus improving welding efficiency, reducing preparation time, and simplifying work steps.

[0021] 2. This automatically positioned welding fume extraction hood, through the cooperation of multiple servo motors and lead screw drives, can achieve multi-dimensional adjustment. Combined with the precise monitoring of the flame positioner, the extraction hood can adapt to weldments of different shapes, sizes, and welding process requirements. Whether it is a small precision weldment or a large steel structure, whether it is planar welding or three-dimensional structure welding, the extraction hood can achieve precise positioning, improving the versatility and adaptability of the equipment. It can be widely used in various welding workshops, improving the practicality of the overall device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the installation structure of the top plate and mounting base of this utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the movable base and the mounting base of this utility model. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the movable base and the mounting base of this utility model. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the disassembled structure of the lead screw and slider of this utility model;

[0027] Figure 6 This is a schematic diagram of the mounting structure of the fixing plate and the suction hood body of this utility model;

[0028] Figure 7 This is a schematic diagram showing the disassembled structure of the fixing sleeve and flame positioner of this utility model.

[0029] The components are as follows: 1. Welding workshop; 2. Top plate; 3. Mounting seat one; 4. Positioning bolt; 5. Fixing sleeve; 6. Flame positioner; 7. Moving seat; 8. Mounting seat two; 9. Motor frame; 10. Servo motor one; 11. Lead screw one; 12. Slider one; 13. Moving frame one; 14. Servo motor two; 15. Lead screw two; 16. Moving frame two; 17. Connecting block one; 18. Servo motor three; 19. Connecting block two; 20. Fixing frame; 21. Servo motor four; 22. Lead screw three; 23. Fixing plate; 24. Connecting flange one; 25. Connecting flange two; 26. Suction hood body; 27. Connecting pipe; 28. Vacuum cleaner body; 29. ​​Slider two; 30. Slide seat; 31. Limiting seat. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: As Figure 1-7 As shown, this utility model provides an automatically positioned welding fume extraction hood, including a welding workshop 1 and a top plate 2 fixedly installed on the outer surface of the welding workshop 1. A mounting base 3 is fixedly installed at one end of the top plate 2 near the interior of the welding workshop 1. A movable base 7, a flame positioner 6, and a fixing frame 20 are fixedly installed on the inner surface of the welding workshop 1. A mounting base 8, a motor frame 9, and a slide block 30 are fixedly installed on the outer surface of the movable base 7. A servo motor 10 is fixedly installed on the outer surface of the motor frame 9. A lead screw 11 is fixedly installed on the output shaft of the servo motor 10. A slider 12 is threadedly connected to the outer surface of the lead screw 11. A movable base 30 is fixedly installed on the outer surface of the slider 12. A servo motor 14 is fixedly mounted on the outer surface of a movable frame 13. A lead screw 15 is fixedly mounted on the output shaft of the servo motor 14. A movable frame 16 is threadedly connected to the outer surface of the lead screw 15. A connecting block 17 is fixedly mounted on the outer surface of the movable frame 16. A servo motor 21 is fixedly mounted on the outer surface of a fixed frame 20. A lead screw 22 is fixedly mounted on the output shaft of the servo motor 21. A fixed plate 23 is threadedly connected to the outer surface of the lead screw 22. A connecting flange 24 is fixedly mounted on the outer surface of the fixed plate 23. A connecting flange 25 is provided on the outer surface of the connecting flange 24. A suction hood body 26 is fixedly mounted on the outer surface of the fixed plate 23.

[0032] Specifically, the outer surface of the mounting base 3 is threaded with a positioning bolt 4 that penetrates the mounting base 3 and extends into the top plate 2. The other end of the mounting base 3 away from the top plate 2 is fixedly installed with a fixing sleeve 5, and the other end of the fixing sleeve 5 away from the top plate 2 is fixedly installed with a flame positioner 6. The advantage is that the threaded positioning bolt 4 facilitates the installation and removal of the mounting base 3 on the top plate 2, and the position of the flame positioner 6 can be flexibly adjusted according to actual needs, which improves the installation adaptability of the equipment. The flame positioner 6 can accurately detect the position of the welding flame, providing a key reference for the automatic positioning of the subsequent suction hood body 26, ensuring that the suction hood can capture the welding fumes in a timely and accurate manner, improving the fume collection efficiency and improving the air quality in the workshop.

[0033] Specifically, slider 12 and movable seat 7 are slidably connected, and slider 12 is adapted to lead screw 11. The advantage is that the sliding connection between slider 12 and movable seat 7, and its adaptation to lead screw 11, ensures the stability and precision of the suction hood's horizontal movement. By precisely controlling the rotation angle and speed of lead screw 11 through servo motor 10, the horizontal position of the suction hood can be accurately adjusted, effectively tracking changes in the welding position, improving the dust collection effect, and reducing dust overflow.

[0034] Specifically, the second movable frame 16 is adapted to the second lead screw 15, and the second movable frame 16 is slidably connected to the first movable frame 13. The advantage is that the adaptation of the second movable frame 16 to the second lead screw 15 and the slidable connection with the first movable frame 13 enable the suction hood to move precisely in the vertical direction. This, combined with the adjustment in the horizontal direction, allows the suction hood to be flexibly positioned in three-dimensional space, better adapting to weldments of different shapes and heights, and improving the equipment's adaptability to complex welding conditions.

[0035] Example 2: Figure 2-7 As shown, this is an improvement on the previous embodiment.

[0036] Specifically, a servo motor 18 is fixedly mounted on the outer surface of connecting block 17, a connecting block 29 is fixedly mounted on the output shaft of servo motor 18, and a fixing bracket 20 is fixedly mounted on the outer surface of connecting block 29. The advantage is that when the angle of the suction hood needs to be adjusted, servo motor 18 is started, and servo motor 18 drives connecting block 29 to rotate, thereby driving the fixing bracket 20 and the suction hood body 26 fixed on it to rotate around a specific axis. The setting of servo motor 18 realizes the automatic adjustment of the suction hood angle, and can flexibly change the orientation of the suction hood according to the requirements of welding process and weldment shape, thereby improving the efficiency and comprehensiveness of dust collection.

[0037] Specifically, a connecting pipe 27 is provided at the other end of the connecting flange 25 away from the connecting flange 24. A vacuum cleaner body 28 located inside the welding workshop 1 is provided at the other end of the connecting pipe 27 away from the connecting flange 25. The suction hood body 26, the connecting pipe 27 and the vacuum cleaner body 28 are connected. The connecting pipe 27 is a threaded pipe. The advantage is that the threaded connection of the connecting pipe 27 is convenient for installation, disassembly and maintenance. When the connecting pipe 27 is blocked or damaged, it can be quickly replaced or cleaned, reducing equipment downtime. The design that the suction hood body 26, the connecting pipe 27 and the vacuum cleaner body 28 are connected ensures the continuity of dust collection and treatment. The vacuum cleaner body 28 can timely suck up and purify the dust collected by the suction hood, effectively reducing the dust concentration in the workshop, improving the working environment, protecting the health of workers, and also meeting environmental protection requirements.

[0038] Specifically, a slider 29 is fixedly installed on the outer surface of the mobile frame 13, and a limiting seat 31 is fixedly installed on the outer surface of the slide 30. The limiting seat 31 is fixedly installed on the inner surface of the welding workshop 1. The advantage is that the sliding cooperation between the slider 29 and the slide 30 provides stable support and guidance for the mobile frame 13, making the suction hood more stable and smooth during horizontal movement, reducing the emission of smoke and dust caused by shaking or vibration, and improving the effect of smoke and dust collection.

[0039] Working principle: In use, the flame positioner 6 is installed on the fixed sleeve 5 below the top plate 2, and is firmly connected to the top plate 2 through the positioning bolt 4 and positioned above the welding area. It can monitor the position of the welding flame in real time. When the position of the welding flame changes, the flame positioner 6 feeds back the position information to the control system. The servo motor 10 drives the lead screw 11 to rotate according to the instructions of the control system. Since the slider 12 is threadedly connected to the lead screw 11 and slidably connected to the moving seat 7, the slider 12 will drive the moving frame 13 to move horizontally. The servo motor 14 drives the lead screw 15 to rotate, so that the moving frame 16, which is threadedly connected to the lead screw 15 and slidably connected to the moving frame 13, moves vertically, thereby realizing the horizontal and vertical position adjustment of the suction hood body 26, bringing it closer to the welding fume source. Simultaneously, servo motor 318 drives connecting block 219 to rotate, which in turn drives the fixed frame 20 and the suction hood body 26 to rotate around a specific axis, adjusting the angle of the suction hood and precisely targeting the welding fumes. The vacuum cleaner body 28 is located inside the welding workshop 1 and is connected to the suction hood body 26 via a threaded connecting pipe 27. When the suction hood body 26 approaches the welding area under the action of the automatic positioning system, the vacuum cleaner body 28 starts, creating a negative pressure environment around the suction hood body 26. The welding fumes are drawn into the suction hood body 26 under the negative pressure and then transported to the vacuum cleaner body 28 through the connecting pipe 27 for purification, preventing the fumes from spreading in the workshop.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatically positioned welding fume extraction hood, comprising a welding workshop (1) and a top plate (2) fixedly installed on the outer surface of the welding workshop (1), wherein a mounting base (3) is fixedly installed at one end of the top plate (2) near the interior of the welding workshop (1), and a movable base (7), a flame positioner (6), and a fixing frame (20) are fixedly installed on the inner surface of the welding workshop (1), characterized in that: The outer surface of the movable base (7) is fixedly mounted with a second mounting base (8), a motor frame (9), and a slide (30). A servo motor (10) is fixedly mounted on the outer surface of the motor frame (9). A lead screw (11) is fixedly mounted on the output shaft of the servo motor (10). A slider (12) is threaded onto the outer surface of the lead screw (11). A movable frame (13) is fixedly mounted on the outer surface of the slider (12). A servo motor (14) is fixedly mounted on the outer surface of the movable frame (13). A lead screw (15) is fixedly mounted on the output shaft of the servo motor (14). 5) A movable frame two (16) is threadedly connected to the outer surface. A connecting block one (17) is fixedly installed on the outer surface of the movable frame two (16). A servo motor four (21) is fixedly installed on the outer surface of the fixed frame (20). A lead screw three (22) is fixedly installed on the output shaft of the servo motor four (21). A fixed plate (23) is threadedly connected to the outer surface of the lead screw three (22). A connecting flange one (24) is fixedly installed on the outer surface of the fixed plate (23). A connecting flange two (25) is provided on the outer surface of the connecting flange one (24). A suction hood body (26) is fixedly installed on the outer surface of the fixed plate (23).

2. The automatically positioned welding fume extraction hood according to claim 1, characterized in that: The outer surface of the mounting base (3) is threaded with a positioning bolt (4) that passes through the mounting base (3) and extends into the top plate (2). A fixing sleeve (5) is fixedly installed at the other end of the mounting base (3) away from the top plate (2). A flame positioner (6) is fixedly installed at the other end of the fixing sleeve (5) away from the top plate (2).

3. The automatically positioned welding fume extraction hood according to claim 1, characterized in that: The slider (12) is slidably connected to the movable seat (7), and the slider (12) is adapted to the lead screw (11).

4. The automatically positioned welding fume extraction hood according to claim 1, characterized in that: The second movable frame (16) is adapted to the second lead screw (15), and the second movable frame (16) is slidably connected to the first movable frame (13).

5. The automatically positioned welding fume extraction hood according to claim 1, characterized in that: A servo motor (18) is fixedly installed on the outer surface of the first connecting block (17), a second connecting block (19) is fixedly installed on the output shaft of the third servo motor (18), and a fixing bracket (20) is fixedly installed on the outer surface of the second connecting block (19).

6. The automatically positioned welding fume extraction hood according to claim 5, characterized in that: A connecting pipe (27) is provided at the other end of the connecting flange two (25) away from the connecting flange one (24). A vacuum cleaner body (28) located inside the welding workshop (1) is provided at the other end of the connecting pipe (27) away from the connecting flange two (25). The vacuum hood body (26), the connecting pipe (27) and the vacuum cleaner body (28) are connected. The connecting pipe (27) is a threaded pipe.

7. The automatically positioned welding fume extraction hood according to claim 1, characterized in that: The outer surface of the movable frame (13) is fixedly installed with a slider (29), and the outer surface of the slide (30) is fixedly installed with a limiting seat (31). The limiting seat (31) is fixedly installed with the inner surface of the welding workshop (1).

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