Smoke purification device for robot welding workstation

Abstract

The invention discloses a smoke purification device for a robot welding workstation, and relates to the field of welding smoke purification, the smoke purification device comprises a smoke suction machine main body, the input end of the smoke suction machine main body is fixedly connected with a mounting pipe, one end of the mounting pipe is fixedly connected with a first connecting hose, and one end of the first connecting hose is fixedly connected with a smoke suction head device; according to the smoke purification device for the robot welding workstation, the dust suction hood of the smoke suction head device has flexible movement capacity under the synergistic effect of the rotating mechanism and the transmission mechanism. The rotating mechanism drives the transmission plate to reciprocate, so that the dust collection cover can linearly move within a certain range, and the dust collection area is increased; and the transmission mechanism drives the mounting box to rotate forwards and backwards in a reciprocating manner, so that the dust hood can rotate. And the two parts are combined, so that the dust collection range of the dust collection cover is greatly expanded, and smoke generated by welding can be captured and sucked from multiple angles and directions.

Description

Technical Field

[0001] This invention relates to welding fume purification technology, specifically to a fume purification device for a robotic welding workstation. Background Technology

[0002] In robotic welding workstations, welding is the core operation; however, the welding process generates a large amount of fumes. These fumes are complex in composition, containing metal oxides, harmful gases, and fine particles, which not only severely pollute the welding work area but also pose a threat to the health of on-site workers. Long-term exposure to such an environment can easily lead to occupational diseases such as respiratory and eye problems. Furthermore, the pervasive fumes in the work area can affect welding quality, causing defects such as porosity in the weld, reducing the strength and reliability of the welded parts.

[0003] Currently, although there are some devices on the market for welding fume purification, they generally have many shortcomings. Most existing fume purification devices have fixed dust collection hoods, lacking flexible movement capabilities and unable to quickly adjust their position according to the movement of the welding head. Because the welding head moves continuously during the welding process, fixed dust collection hoods cannot effectively capture and suck up the welding fumes generated from multiple angles and directions, resulting in a large amount of fume escaping, poor purification effect, and inability to provide a clean environment for the welding work area.

[0004] Therefore, developing a fume purification device for robotic welding workstations that can effectively expand the dust collection range and prevent fume escape is of great practical significance. Summary of the Invention

[0005] The purpose of this invention is to provide a fume purification device for a robotic welding workstation, in order to solve the problem that existing fume extraction devices cannot effectively capture and inhale welding fumes from multiple angles and directions, resulting in a large amount of fumes escaping, poor purification effect, and failure to provide a clean environment for the welding work area.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fume purification device for a robotic welding workstation, comprising a fume extraction machine body, an installation pipe fixedly connected to the input end of the fume extraction machine body, a first connecting hose fixedly connected to one end of the installation pipe, a fume extraction head device fixedly connected to one end of the first connecting hose, and a spark extinguishing mechanism provided inside the installation pipe for extinguishing sparks;

[0007] The smoking head device includes a mounting ring with a fixing clamping mechanism for clamping and fixing the mounting ring to the welding head. A rotating ring is rotatably connected to the top of the mounting ring. A transmission mechanism connected to the mounting ring is driven to the inner surface of the rotating ring, allowing the rotating ring to rotate. A mounting box is fixedly connected to the top of the rotating ring. Multiple transmission plates are slidably connected to the mounting box. A rotating mechanism connected to the mounting box is driven to the top of each transmission plate, allowing the transmission plates to rotate. Multiple suction pipes are fixedly connected to the bottom of each transmission plate. Multiple suction hoods are fixedly connected to the outer surface of each suction pipe. A second connecting hose is fixedly connected to the outer surface of each suction pipe. A suction ring tube is fixedly connected to one end of the second connecting hose, and the outer surface of the suction ring tube is fixedly connected to the first connecting hose.

[0008] Furthermore, the rotating mechanism includes a transmission ring rotatably connected to the mounting box, a transmission groove is provided on the transmission ring, a transmission column fixedly connected to the transmission plate is slidably connected in the transmission groove, and a drive mechanism connected to the mounting box is rotatably connected to the inner surface of the transmission ring, the drive mechanism being used to drive the transmission ring to rotate.

[0009] Furthermore, the driving mechanism includes a first rotating driving component fixedly connected to the mounting box, the output end of the first rotating driving component is fixedly connected to a driving shaft, a driving gear is fixedly sleeved on the outer surface of the driving shaft, and a driving gear ring fixedly connected to the transmission ring is meshed on the outer surface of the driving gear.

[0010] Furthermore, the transmission mechanism includes a second rotation drive component fixedly connected to the mounting ring, the output end of the second rotation drive component is fixedly connected to a transmission shaft, a transmission gear is fixedly sleeved on the outer surface of the transmission shaft, and a transmission gear ring fixedly sleeved on the outer surface of the transmission gear is meshed with the rotation ring.

[0011] Furthermore, the fixing clamping mechanism includes a fixing bolt threadedly connected to the mounting ring, and a clamping block is rotatably connected to one end of the fixing bolt.

[0012] Furthermore, a rubber buffer pad is fixedly connected to one side of the clamping block.

[0013] Furthermore, the spark extinguishing mechanism includes a mounting plate fixedly connected inside the mounting tube, a rotating shaft rotatably connected to the mounting plate, a fan blade fixedly connected to the bottom end of the rotating shaft, and multiple striking rods fixedly connected to the outer surface of the rotating shaft.

[0014] Furthermore, the dust hood is trumpet-shaped, and the opening diameter at the end of the dust hood furthest from the suction pipe is larger than the opening diameter at the end closest to the suction pipe, so as to expand the suction range.

[0015] Compared with the prior art, the fume purification device for a robotic welding workstation provided by the present invention has the following beneficial effects:

[0016] The dust hood, equipped with a fume extraction device, possesses flexible movement capabilities through the coordinated action of a rotating mechanism and a transmission mechanism. The rotating mechanism drives the transmission plate to reciprocate, enabling the dust hood to move linearly within a certain range, increasing the suction area. The transmission mechanism drives the mounting box to rotate forward and backward, thus allowing the dust hood to rotate. The combination of these two mechanisms significantly expands the dust extraction range, capturing and sucking in welding fumes from multiple angles and directions. Regardless of the welding head's movement, the dust hood can quickly adjust its position, effectively preventing fume escape and greatly improving fume removal efficiency. This provides a cleaner environment for the welding work area, protects the health of workers, and meets environmental protection requirements, reducing pollution to the surrounding environment.

[0017] The spark extinguishing mechanism effectively protects the filter element inside the smoke extraction machine. During welding, high-temperature sparks from the solder can easily be drawn into the purification device's ductwork. If these sparks enter the smoke extraction machine, they can severely damage the filter element, reducing its lifespan and increasing replacement costs. The spark extinguishing mechanism of this device uses wind power to drive a fan blade, which in turn rotates a shaft, causing a striking rod to strike and extinguish the incoming sparks. This process requires no additional energy consumption; it relies solely on the airflow generated during smoke extraction. By promptly extinguishing the sparks, spark particles are prevented from entering the smoke extraction machine, thus providing reliable protection for the filter element, extending its lifespan, reducing operating costs, and improving the overall stability and reliability of the smoke purification device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a first perspective view of the external structure of the present invention;

[0020] Figure 2 This is a second perspective view of the external structure of the present invention;

[0021] Figure 3 This is a front view of the internal structure of the mounting tube of the present invention;

[0022] Figure 4 This is a top view of the internal structure of the mounting box of the present invention;

[0023] Figure 5 For the present invention Figure 1 Enlarged view of A in the middle;

[0024] Figure 6 For the present invention Figure 4 A magnified view of B in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Main body of the smoking machine; 2. Mounting pipe; 3. First connecting hose; 4. Smoking head device; 5. Mounting ring; 6. Rotating ring; 7. Mounting box; 8. Transmission plate; 9. Suction pipe; 10. Suction hood; 11. Second connecting hose; 12. Suction ring pipe; 21. Transmission ring; 22. Transmission groove; 23. Transmission column; 31. First rotating drive component; 32. Drive shaft; 33. Drive gear; 34. Drive gear ring; 41. Second rotating drive component; 42. Transmission shaft; 43. Transmission gear; 44. Transmission gear ring; 51. Fixing bolt; 52. Clamping block; 61. Mounting plate; 62. Rotating shaft; 63. Fan blade; 64. Striking rod. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please see Figures 1 to 6 As shown, the present invention provides a fume purification device for a robotic welding workstation, including a fume extraction machine body 1, an installation pipe 2 fixedly connected to the input end of the fume extraction machine body 1, a first connecting hose 3 fixedly connected to one end of the installation pipe 2, a fume extraction head device 4 fixedly connected to one end of the first connecting hose 3, and a spark extinguishing mechanism provided inside the installation pipe 2 for extinguishing sparks.

[0030] The smoking head device 4 includes a mounting ring 5, on which a fixing clamping mechanism is provided to clamp and fix the mounting ring 5 to the welding head. A rotating ring 6 is rotatably connected to the top of the mounting ring 5. A transmission mechanism connected to the mounting ring 5 is driven to the inner surface of the rotating ring 6. The transmission mechanism is used to drive the rotating ring 6 to rotate. A mounting box 7 is fixedly connected to the top of the rotating ring 6. Multiple transmission plates 8 are slidably connected to the mounting box 7. A rotating mechanism connected to the mounting box 7 is driven to the top of the transmission plates 8. The rotating mechanism is used to drive the transmission plates 8 to rotate. Multiple suction pipes 9 are fixedly connected to the bottom of the transmission plates 8. Multiple suction hoods 10 are fixedly connected to the outer surface of the suction pipes 9. A second connecting hose 11 is fixedly connected to the outer surface of the suction pipes 9. A suction ring tube 12 is fixedly connected to one end of the second connecting hose 11. The outer surface of the suction ring tube 12 is fixedly connected to the first connecting hose 3.

[0031] The rotating mechanism includes a transmission ring 21 that is rotatably connected to the mounting box 7. A transmission groove 22 is provided on the transmission ring 21. A transmission column 23 that is fixedly connected to the transmission plate 8 is slidably connected in the transmission groove 22. A drive mechanism connected to the mounting box 7 is connected to the inner surface of the transmission ring 21. The drive mechanism is used to drive the transmission ring 21 to rotate.

[0032] The drive mechanism includes a first rotation drive component 31 fixedly connected to the mounting box 7. The first rotation drive component 31 is a servo motor. The servo motor is controlled by a PLC programming program, which can control the servo motor to rotate forward and backward and rotate at different angles. The output end of the first rotation drive component 31 is fixedly connected to a drive shaft 32. A drive gear 33 is fixedly sleeved on the outer surface of the drive shaft 32. A drive gear ring 34 fixedly connected to the transmission ring 21 is meshed on the outer surface of the drive gear 33.

[0033] The first rotating drive component 31 drives the drive shaft 32 to rotate. The drive shaft 32 drives the drive gear ring 34 to rotate in both directions via the drive gear 33. The drive gear ring 34 drives the transmission ring 21 to rotate in both directions. The transmission ring 21 drives the transmission column 23 and the transmission plate 8 to move back and forth on the mounting box 7 via the transmission groove 22.

[0034] The transmission mechanism includes a second rotation drive component 41 fixedly connected to the mounting ring 5. The second rotation drive component 41 is a servo motor, which is controlled by a PLC programming program. The servo motor can be controlled to rotate in both directions and rotate at different angles. A transmission shaft 42 is fixedly connected to the output end of the second rotation drive component 41. A transmission gear 43 is fixedly sleeved on the outer surface of the transmission shaft 42. A transmission gear ring 44, which is fixedly sleeved on the outer surface of the transmission gear 43, is meshed with the outer surface of the transmission gear 43. The second rotation drive component 41 drives the transmission shaft 42 to rotate, and the transmission shaft 42 drives the transmission gear ring 44 to rotate through the transmission gear 43. The transmission gear ring 44 drives the rotating ring 6 to rotate.

[0035] The fixed clamping mechanism includes a fixing bolt 51 that is threadedly connected to the mounting ring 5, and a clamping block 52 is rotatably connected to one end of the fixing bolt 51.

[0036] A rubber buffer pad is fixedly connected to one side of the clamping block 52.

[0037] First, the mounting ring 5 is placed on the welding head. Then, by rotating the fixing bolt 51, the fixing bolt 51 moves the clamping block 52, causing the clamping block 52 to clamp tightly onto the robot's welding head. When the robot moves the welding head to perform welding work, the main body 1 of the fumigation machine starts working. The main body 1 of the fumigation machine sucks air from the suction ring pipe 12 through the mounting pipe 2 and the first connecting hose 3. Then, the suction ring pipe 12 sucks dust from the suction pipe 9 through multiple second connecting hoses 11. The suction pipe 9 sucks in the fumes generated during welding through the suction hood 10. At the same time, the first rotation drive 31 drives the drive shaft 32 to rotate. The drive shaft 32 drives the drive gear ring 34 to rotate in both directions through the drive gear 33. The drive gear ring 34 drives the transmission ring 21 to rotate in both directions. The ring 21 drives the transmission column 23 and the transmission plate 8 to reciprocate on the mounting box 7 via the transmission groove 22. The transmission plate 8 drives the dust suction pipe 9 and the dust suction hood 10 to reciprocate, increasing the dust suction area of ​​the dust suction hood 10. At the same time, the second rotation drive 41 drives the transmission shaft 42 to rotate. The transmission shaft 42 drives the transmission gear ring 44 to rotate via the transmission gear 43. The transmission gear ring 44 drives the rotating ring 6 to rotate. The rotating ring 6 drives the mounting box 7 to rotate in both directions. The mounting box 7 drives multiple dust suction pipes 9 to rotate in both directions. The dust suction pipes 9 drive multiple dust suction hoods 10 to rotate in both directions, further increasing the dust removal area of ​​the dust suction hood 10 for smoke, thereby achieving full suction of the smoke generated during welding, effectively preventing some smoke from escaping, and further improving the smoke removal effect.

[0038] Example 2

[0039] Based on Example 1, please refer to Figure 1 and Figure 3 As shown, the spark extinguishing mechanism includes a mounting plate 61 fixedly connected inside the mounting tube 2, a rotating shaft 62 rotatably connected to the mounting plate 61, a fan blade 63 fixedly connected to the bottom end of the rotating shaft 62, and multiple striking rods 64 fixedly connected to the outer surface of the rotating shaft 62.

[0040] During the mist extraction process, when some high-temperature spark solder is sucked into the pipe, it then enters the installation pipe 2 through the first connecting hose 3. At the same time, the wind blows the fan blades 63 on the rotating shaft 62, which drive the rotating shaft 62 to rotate. The rotating shaft 62 drives multiple striking rods 64 to rotate, and the striking rods 64 strike the incoming sparks to extinguish them. This effectively prevents spark particles from entering the main body 1 of the smoke extraction machine and damaging the filter element inside the main body 1, thereby further improving the service life of the filter element.

[0041] The working principle is as follows:

[0042] Installation of smoking head device

[0043] First, the mounting ring 5 is placed on the robot's welding head. Then, the fixing bolt 51 is rotated. Since the fixing bolt 51 is threadedly connected to the mounting ring 5, and one end of it is rotatably connected to the clamping block 52, rotating the fixing bolt 51 will cause the clamping block 52 to move towards the welding head, so that the clamping block 52 is tightly clamped on the welding head, thus fixing the mounting ring 5. At the same time, the rubber buffer pad on one side of the clamping block 52 can provide cushioning and protection, preventing damage to the welding head.

[0044] Smoke inhalation process

[0045] When the robot moves the welding head to perform welding work, the main body 1 of the fumigation machine starts to work. The main body 1 of the fumigation machine generates suction through the mounting pipe 2 and the first connecting hose 3 to draw air from the suction ring pipe 12.

[0046] The suction coil 12 transmits suction to the suction pipe 9 through multiple second connecting hoses 11. The suction pipe 9 then uses the suction hood 10 to suck in the fumes generated during welding and introduce the fumes into the piping system.

[0047] Increase the vacuuming area

[0048] The transmission plate reciprocates: The first rotation drive 31 (servo motor) rotates in both directions and adjusts its rotation angle under the control of the PLC programming program. The first rotation drive 31 drives the drive shaft 32 to rotate, and the drive gear 33 on the drive shaft 32 rotates accordingly. The drive gear 33 meshes with the drive gear ring 34, thereby driving the drive gear ring 34 to reciprocate in both directions. The drive gear ring 34 is fixed on the transmission ring 21, so it drives the transmission ring 21 to reciprocate in both directions. The transmission groove 22 on the transmission ring 21 is slidably connected to the transmission column 23 on the transmission plate 8. When the transmission ring 21 rotates, it drives the transmission column 23 and the transmission plate 8 to reciprocate on the mounting box 7 through the transmission groove 22. When the transmission plate 8 moves, it drives the dust suction pipe 9 and the dust suction hood 10 to reciprocate together, increasing the dust suction area of ​​the dust suction hood 10.

[0049] The mounting box rotates in both directions: The second rotation drive 41 (servo motor) also rotates in both directions and adjusts its rotation angle under the control of the PLC programming program. The second rotation drive 41 drives the transmission shaft 42 to rotate, and the transmission gear 43 on the transmission shaft 42 rotates accordingly. The transmission gear 43 meshes with the transmission gear ring 44, which is fixed on the rotating ring 6, thereby driving the rotating ring 6 to rotate. The rotating ring 6 drives the mounting box 7 to rotate in both directions, which in turn drives multiple suction pipes 9 to rotate in both directions. The suction pipes 9 then drive multiple suction hoods 10 to rotate in both directions, further increasing the dust removal area of ​​the suction hoods 10 for smoke, achieving full suction of welding smoke, effectively preventing smoke escape, and improving the smoke removal effect.

[0050] Spark extinguishing process

[0051] During the mist extraction process, some high-temperature spark solder will be sucked into the pipe and enter the installation pipe 2 through the first connecting hose 3.

[0052] After entering the installation pipe 2, the wind will blow the fan blades 63 on the rotating shaft 62, and the fan blades 63 will drive the rotating shaft 62 to rotate. Multiple striking rods 64 are fixedly connected to the rotating shaft 62. When the rotating shaft 62 rotates, it will drive the striking rods 64 to rotate together. The striking rods 64 will strike the incoming sparks to extinguish them, preventing spark particles from entering the main body 1 of the smoke extractor and damaging the filter element, thereby improving the service life of the filter element.

[0053] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fume purification device for a robotic welding workstation, characterized in that, The smoking machine includes a main body (1), an installation tube (2) is fixedly connected to the input end of the main body (1), a first connecting hose (3) is fixedly connected to one end of the installation tube (2), a smoking head device (4) is fixedly connected to one end of the first connecting hose (3), and a spark extinguishing mechanism is provided inside the installation tube (2) for extinguishing sparks. The smoking head device (4) includes a mounting ring (5), on which a fixing clamping mechanism is provided. The fixing clamping mechanism is used to clamp and fix the mounting ring (5) to the welding head. A rotating ring (6) is rotatably connected to the top of the mounting ring (5). A transmission mechanism connected to the mounting ring (5) is driven to the inner surface of the rotating ring (6). The transmission mechanism is used to drive the rotating ring (6) to rotate. A mounting box (7) is fixedly connected to the top of the rotating ring (6). Multiple transmission plates (8) are slidably connected to the mounting box (7). The top of the transmission plate (8) is connected to a rotating mechanism connected to the mounting box (7). The rotating mechanism is used to drive the transmission plate (8) to rotate. The bottom of the transmission plate (8) is fixedly connected to a plurality of suction pipes (9). The outer surface of the suction pipes (9) is fixedly connected to a plurality of suction hoods (10). The outer surface of the suction pipes (9) is fixedly connected to a second connecting hose (11). One end of the second connecting hose (11) is fixedly connected to a suction ring tube (12). The outer surface of the suction ring tube (12) is fixedly connected to the first connecting hose (3).

2. The fume purification device for a robotic welding workstation according to claim 1, characterized in that, The rotating mechanism includes a transmission ring (21) rotatably connected to the mounting box (7). A transmission groove (22) is provided on the transmission ring (21). A transmission column (23) fixedly connected to the transmission plate (8) is slidably connected in the transmission groove (22). A drive mechanism connected to the mounting box (7) is connected to the inner surface of the transmission ring (21). The drive mechanism is used to drive the transmission ring (21) to rotate.

3. The fume purification device for a robotic welding workstation according to claim 2, characterized in that, The drive mechanism includes a first rotating drive member (31) fixedly connected to the mounting box (7). The output end of the first rotating drive member (31) is fixedly connected to a drive shaft (32). A drive gear (33) is fixedly sleeved on the outer surface of the drive shaft (32). A drive gear ring (34) fixedly connected to the transmission ring (21) is meshed on the outer surface of the drive gear (33).

4. The fume purification device for a robotic welding workstation according to claim 1, characterized in that, The transmission mechanism includes a second rotation drive (41) fixedly connected to the mounting ring (5). The output end of the second rotation drive (41) is fixedly connected to a transmission shaft (42). A transmission gear (43) is fixedly sleeved on the outer surface of the transmission shaft (42). A transmission gear ring (44) fixedly sleeved on the outer surface of the transmission gear (43) is meshed with a transmission gear ring (44) fixedly sleeved to the rotating ring (6).

5. The fume purification device for a robotic welding workstation according to claim 1, characterized in that, The fixed clamping mechanism includes a fixing bolt (51) threadedly connected to the mounting ring (5), and a clamping block (52) is rotatably connected to one end of the fixing bolt (51).

6. The fume purification device for a robotic welding workstation according to claim 5, characterized in that, A rubber buffer pad is fixedly connected to one side of the clamping block (52).

7. The fume purification device for a robotic welding workstation according to claim 1, characterized in that, The spark extinguishing mechanism includes an installation plate (61) fixedly connected inside the installation tube (2), a rotating shaft (62) rotatably connected on the installation plate (61), a fan blade (63) fixedly connected to the bottom end of the rotating shaft (62), and multiple striking rods (64) fixedly connected to the outer surface of the rotating shaft (62).

8. The fume purification device for a robotic welding workstation according to claim 1, characterized in that, The dust hood (10) is trumpet-shaped, and the diameter of the opening at the end of the dust hood (10) away from the dust suction pipe (9) is larger than the diameter of the opening at the end closer to the dust suction pipe (9) in order to expand the dust suction range.

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