A purging device for a welding robot
By designing a mobile purification device on the welding robot, and using a worm gear reducer motor to drive the lead screw to move the mounting frame and the barrier curtain assembly, the problem of smoke and exhaust pollution from the welding robot was solved, achieving a highly efficient smoke collection and purification effect.
Patent Information
- Application Number
- CN202522476766.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-11-21
AI Technical Summary
Welding robots generate fumes and exhaust gases during operation, which pollute the environment and are difficult to collect effectively, thus affecting health.
A purification device was designed, comprising a mounting base, a lateral movement component, a robotic arm welding component, a blocking component, and a fume extraction component. The device utilizes a worm gear reducer motor to drive a lead screw to move the mounting frame, ensuring that the air inlet is always positioned above the welding robot. Combined with a blocking curtain, the fume is prevented from spreading, and the fume is purified by a pulse jet filter cartridge dust collector.
It effectively collects and purifies the fumes and exhaust gases generated during welding, prevents their spread, improves the absorption effect of fumes, and protects the environment and health.
Smart Images

Figure CN224673439U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding robot technology, and in particular to a purification device for welding robots. Background Technology
[0002] A welding robot is an industrial robot that performs welding (including cutting and spraying). An industrial robot is a multi-purpose, reprogrammable, automatically controlled manipulator with three or more programmable axes, used in industrial automation. To adapt to different applications, the mechanical interface of the robot's last axis is usually a connecting flange, which can be used to attach different tools or end effectors. A welding robot is essentially an industrial robot with a welding clamp or welding (cutting) torch mounted on its last axis flange, enabling it to perform welding, cutting, or thermal spraying.
[0003] The welding robot is manually guided by a teach pendant to record the weld seam trajectory. Simultaneously, process parameters such as welding current, voltage, and wire feed speed are set. Some robots are equipped with vision or tactile sensors to detect workpiece position deviations in real time and automatically compensate for and adjust the trajectory. After receiving the command, the controller drives the robotic arm to move along the preset trajectory, and the welding system starts synchronously. The welding torch is aligned with the weld seam, the wire feeding mechanism delivers the welding wire, and an arc or laser is generated in conjunction with the welding power source to melt the base material and welding wire to form the weld seam. Sensors monitor data such as arc light, temperature, and weld seam formation in real time. If deviations occur (such as workpiece misalignment or depletion of welding wire), the controller immediately issues adjustment or shutdown commands. During the use of welding robots, due to their high welding speed, a large amount of fumes and exhaust gases are generated between the welding torch and the workpiece, which seriously pollutes the environment and affects people's health. The large range of motion during welding makes the collection of fumes and exhaust gases difficult, resulting in poor fume absorption. Based on the above problems, this application proposes a purification device for welding robots. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a purification device for welding robots, thereby solving the aforementioned problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A purification device for a welding robot includes a mounting base, a lateral moving component inside the mounting base, a mounting column inside the mounting base via the lateral moving component, a longitudinal beam fixedly mounted on the front side of the mounting column, a mounting plate fixedly mounted on the bottom of the longitudinal beam, a robotic arm welding component and a blocking component mounted on the bottom of the mounting plate, and a fume extraction component mounted on the rear side of the mounting base.
[0006] Preferably, the lateral movement assembly includes a fixed bracket fixedly installed on the left side of the mounting base. A worm gear reducer motor is fixedly installed on the left side of the fixed bracket. A lead screw is installed at the output end of the worm gear reducer motor via a coupling. The lead screw is rotatably disposed inside the mounting base. A threaded sleeve is provided on the surface of the lead screw. A movable mounting frame is fixedly disposed on the top of the threaded sleeve. A rotating shaft is rotatably disposed inside the movable mounting frame. A track wheel is fixedly disposed on the surface of the rotating shaft. A connecting rail is overlapped inside the track wheel. The connecting rail is fixedly installed inside the mounting base.
[0007] Preferably, the number of track wheels is four, the number of connecting tracks is two, and the four track wheels and the two connecting tracks are symmetrically distributed.
[0008] Preferably, the robotic arm welding assembly includes a mounting base fixedly installed on the bottom of a mounting plate, and the welding robot body is fixedly mounted on the bottom of the mounting base.
[0009] Preferably, the blocking assembly includes a mounting frame fixedly installed at the bottom of the mounting plate, and a first blocking curtain and a second blocking curtain are fixedly installed at the bottom of the mounting frame.
[0010] Preferably, the flue gas absorption assembly includes a mounting base plate and an air inlet. The mounting base plate is fixedly installed on the rear side of the mounting base. The air inlet is disposed through the top of the mounting plate. A pulse jet filter is fixedly installed on the top of the mounting base plate. A flue gas conveying hose is fixedly installed at the air inlet end of the pulse jet filter. A connecting pipe is fixedly installed at the air inlet end of the flue gas conveying hose. An air inlet hood is fixedly installed at the air inlet end of the connecting pipe. The bottom end of the air inlet hood is fixedly installed on the top of the mounting plate.
[0011] Preferably, there are several air inlets, and the several air inlets are symmetrically distributed, and the air inlets are located inside the air inlet cover.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: When the welding robot body is welding a workpiece, the fume extraction component extracts the generated fumes. Based on the rising characteristics of fumes, the air inlet of the fume extraction component is located above the welding robot body, and the rising fumes are blocked by the blocking component, preventing the fumes from spreading to the surroundings. Moreover, the air inlet and blocking component of the fume extraction component can move with the welding robot body, thereby avoiding the situation where the collection of fumes and exhaust gases becomes more difficult due to the large range of motion during welding, resulting in poor fume absorption. Attached Figure Description
[0013] Figure 1 This is an isometric drawing of the structure of this utility model; Figure 2 This is a schematic diagram of the lateral movement component structure of this utility model; Figure 3 This is a rear view of the structure of this utility model; Figure 4 This is a partial structural diagram of the present invention.
[0014] In the diagram: 1. Mounting base; 2. Fixed bracket; 3. Worm gear reducer motor; 4. Lead screw; 5. Lead sleeve; 6. Movable mounting frame; 7. Rotating shaft; 8. Track wheel; 9. Connecting track; 10. Mounting column; 11. Longitudinal beam; 12. Mounting plate; 13. Mounting base plate; 14. Pulse filter cartridge dust collector; 15. Flue gas conveying hose; 16. Connecting pipe; 17. Air inlet hood; 18. Air inlet hole; 19. Mounting frame; 20. Barrier curtain one; 21. Barrier curtain two; 22. Mounting seat; 23. Welding robot body. Detailed Implementation
[0015] 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.
[0016] Example: Refer to Figure 1-4A purification device for a welding robot includes a mounting base 1. A lateral moving assembly is installed inside the mounting base 1. A mounting column 10 is mounted inside the mounting base 1 via the lateral moving assembly. A longitudinal beam 11 is fixedly mounted on the front side of the mounting column 10. A mounting plate 12 is fixedly mounted on the bottom of the longitudinal beam 11. A robotic arm welding assembly and a blocking assembly are mounted on the bottom of the mounting plate 12. A fume extraction assembly is located on the rear side of the mounting base 1. The lateral moving assembly includes a fixed bracket 2 fixedly mounted on the left side of the mounting base 1. A worm gear reducer motor 3 is fixedly mounted on the left side of the fixed bracket 2. A lead screw 4 is mounted on the output end of the worm gear reducer motor 3 via a coupling. The lead screw 4 is rotatably mounted inside the mounting base 1. The surface of the lead screw 4 is threaded... The mounting base 1 has a wire sleeve 5, a movable mounting bracket 6 fixedly mounted on top of the wire sleeve 5, a rotating shaft 7 rotatably mounted inside the movable mounting bracket 6, a track wheel 8 fixedly mounted on the surface of the rotating shaft 7, and a connecting track 9 overlapping inside the track wheel 8. The connecting track 9 is fixedly mounted inside the mounting base 1. The flue gas absorption assembly includes a mounting base plate 13 and an air inlet 18. The mounting base plate 13 is fixedly mounted on the rear side of the mounting base 1. The air inlet 18 is disposed through the top of the mounting plate 12. There are several air inlets 18, which are symmetrically distributed and located inside the air inlet hood 17. A pulse filter cartridge dust collector 14 is fixedly mounted on the top of the mounting base plate 13. The air inlet end of the pulse filter cartridge dust collector 14 is... A flue gas conveying hose 15 is fixedly installed, and a connecting pipe 16 is fixedly installed at the air inlet end of the flue gas conveying hose 15. An air inlet hood 17 is fixedly installed at the air inlet end of the connecting pipe 16. The bottom end of the air inlet hood 17 is fixedly installed on the top of the mounting plate 12. When welding generates fumes, the pulse filter cartridge dust collector 14 is activated. The fumes enter the interior of the air inlet hood 17 through the air inlet hole 18, and then enter the pulse filter cartridge dust collector 14 for filtration and purification through the connecting pipe 16 and the flue gas conveying hose 15. The pulse filter cartridge dust collector 14 is existing technology and will not be described in detail here. The worm gear reducer motor 3 drives the coupling to drive the lead screw 4 to rotate. The lead screw 4 drives the lead sleeve 5 to move the movable mounting frame 6. The movable mounting frame 6 rotates to move the lead screw 4. Shaft 7 drives the track wheel 8 to roll on the surface of the connecting track 9, so that the movable mounting frame 6 drives the mounting plate 12 to move through the mounting column 10 and the longitudinal beam 11, so that the mounting seat 22 drives the welding robot body 23 to move, so that the welding robot body 23 moves to different positions of the workpiece. Moreover, the air inlet 18, the air inlet cover 17 and the connecting pipe 16 can move with the welding robot body 23, so that the air inlet 18 is always above the welding robot body 23, and there will be no situation where the distance between the air inlet 18 and the welding robot body 23 is too far and the fumes cannot be absorbed. In addition, according to the usage requirements during welding, a dust cover can be installed on the surface of the lead screw 4 to protect the lead screw.
[0017] Specifically, there are four track wheels 8 and two connecting tracks 9. The four track wheels 8 and the two connecting tracks 9 are symmetrically distributed. The four track wheels 8 and the two connecting tracks 9 can provide stable support for the mobile mounting frame 6, so that the mobile mounting frame 6 will not shake during the movement.
[0018] Specifically, the robotic arm welding assembly includes a mounting base 22 fixedly installed at the bottom of the mounting plate 12, with the welding robot body 23 fixedly mounted at the bottom of the mounting base 22. The blocking assembly includes a mounting frame 19 fixedly installed at the bottom of the mounting plate 12, with a first blocking curtain 20 and a second blocking curtain 21 fixedly mounted at the bottom of the mounting frame 19. The welding robot body 23 is installed at the bottom of the mounting base 22 by bolts, so that the welding robot body 23 can be located between the first blocking curtain 20 and the second blocking curtain 21. Moreover, the first blocking curtain 20 and the second blocking curtain 21 can block the upward moving fumes, preventing the fumes from spreading to both sides and allowing the fumes to be completely extracted.
[0019] The purification device for the welding robot is connected to a 220V mains power supply, and the main controller can be a conventional known device such as a computer for control.
[0020] In use: When welding workpieces requires welding by a welding robot, the welding robot body 23, mounted on the bottom of the mounting base 22, welds the workpiece. An external controller activates the pulse jet dust collector 14. Utilizing the rising characteristics of the fumes and the suction generated by the air inlet 18, the fumes are drawn into the air inlet hood 17, then into the connecting pipe 16, and finally into the fume delivery hose 15. The fume delivery hose 15 then enters the pulse jet dust collector 14, where it filters and purifies the fumes. The pulse jet dust collector 14 is existing technology and will not be described in detail here. Meanwhile, the welding robot body 23 does not... During welding at the same position, the worm gear reducer motor 3, controlled by an external controller, drives the coupling to rotate the lead screw 4. The lead screw 4 drives the threaded sleeve 5 to move the movable mounting frame 6, which in turn drives the rotating shaft 7 to move. This causes the rotating shaft 7 to drive the track wheel 8 to roll on the surface of the connecting track 9, which in turn drives the rotating shaft 7 to rotate inside the movable mounting frame 6. This causes the movable mounting frame 6 to move the mounting column 10, which in turn drives the mounting plate 12 to move via the longitudinal beam 11. The mounting plate 12 then drives the welding robot body 23 to move via the mounting base 22, allowing the welding robot body 23 to move to different positions on the workpiece. This enables welding of both large and small workpieces.
[0021] 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. A purification device for a welding robot, comprising a mounting base (1), characterized in that, The mounting base (1) is provided with a transverse moving component inside. The mounting base (1) is provided with a mounting column (10) through the transverse moving component inside. A longitudinal beam (11) is fixedly provided on the front side of the mounting column (10). A mounting plate (12) is fixedly provided on the bottom of the longitudinal beam (11). A robotic arm welding component and a blocking component are provided on the bottom of the mounting plate (12). A flue gas absorption component is provided on the rear side of the mounting base (1).
2. The purification device for a welding robot according to claim 1, characterized in that, The lateral movement assembly includes a fixed bracket (2) fixedly installed on the left side of the mounting base (1). A worm gear reducer motor (3) is fixedly installed on the left side of the fixed bracket (2). A lead screw (4) is installed at the output end of the worm gear reducer motor (3) through a coupling. The lead screw (4) is rotatably installed inside the mounting base (1). A threaded sleeve (5) is provided on the surface of the lead screw (4). A movable mounting frame (6) is fixedly installed on the top of the threaded sleeve (5). A rotating shaft (7) is rotatably installed inside the movable mounting frame (6). A track wheel (8) is fixedly installed on the surface of the rotating shaft (7). A connecting track (9) is overlapped inside the track wheel (8). The connecting track (9) is fixedly installed inside the mounting base (1).
3. A purification device for a welding robot according to claim 2, characterized in that, The number of track wheels (8) is four, the number of connecting tracks (9) is two, and the four track wheels (8) and the two connecting tracks (9) are symmetrically distributed.
4. A purification device for a welding robot according to claim 1, characterized in that, The robotic arm welding assembly includes a mounting base (22) fixedly mounted on the bottom of the mounting plate (12), and a welding robot body (23) is fixedly mounted on the bottom of the mounting base (22).
5. A purification device for a welding robot according to claim 1, characterized in that, The blocking assembly includes a mounting frame (19) fixedly installed at the bottom of the mounting plate (12), and a blocking curtain one (20) and a blocking curtain two (21) are fixedly installed at the bottom of the mounting frame (19).
6. A purification device for a welding robot according to claim 1, characterized in that, The flue gas absorption assembly includes a mounting base plate (13) and an air inlet (18). The mounting base plate (13) is fixedly installed on the rear side of the mounting base (1). The air inlet (18) is disposed through the top of the mounting plate (12). A pulse filter cartridge dust collector (14) is fixedly installed on the top of the mounting base plate (13). A flue gas conveying hose (15) is fixedly installed at the air inlet end of the pulse filter cartridge dust collector (14). A connecting pipe (16) is fixedly installed at the air inlet end of the flue gas conveying hose (15). An air inlet hood (17) is fixedly installed at the air inlet end of the connecting pipe (16). The bottom end of the air inlet hood (17) is fixedly installed on the top of the mounting plate (12).
7. A purification device for a welding robot according to claim 6, characterized in that, The number of air inlets (18) is several, and the several air inlets (18) are symmetrically distributed. The air inlets (18) are located inside the air inlet cover (17).