Steel plate narrow gap welding equipment
By designing a fume absorption component in a narrow-gap steel plate welding equipment, the problem of the impact of welding fumes on monitoring was solved, and the stability and reliability of welding quality were achieved.
Patent Information
- Application Number
- CN202520250583.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-17
AI Technical Summary
Traditional narrow-gap steel plate welding equipment produces fumes that are difficult to remove effectively during the welding process, resulting in poor monitoring performance of laser or visual sensors and affecting welding quality.
A smoke absorption assembly was designed, including an absorption box, an absorption tube, a Z-shaped block, an absorption container, a first fan, a first filter layer, a second filter layer, activated carbon, and vent holes. The fan drives the smoke into the filter layer for purification and then discharges it.
It effectively removes welding fumes, improves the accuracy of welding process monitoring, and ensures the stability and reliability of welding quality.
Smart Images

Figure CN223833747U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of narrow gap welding technology for steel plates, specifically to a narrow gap welding device for steel plates. Background Technology
[0002] In the field of narrow gap welding of steel plates, traditional narrow gap welding equipment for steel plates faces the problem of fume treatment. Due to its narrow welding gap, usually only 6-16 mm, the internal space is extremely limited.
[0003] During welding, a large amount of smoke is generated. Conventional suction devices cannot penetrate such narrow gaps to quickly and effectively remove the smoke, which then diffuses and rises within the gap. When using laser or vision sensors to monitor the welding process, the tiny particles in the smoke scatter and absorb the laser, causing laser signal attenuation and distortion. This prevents the sensor from accurately locating the weld. For vision sensors, the smoke obscures the image of the welding area, reducing image clarity and contrast, and interfering with the identification and extraction of key information such as weld edges and molten pool conditions. This seriously affects the accuracy and reliability of welding quality monitoring, and consequently hinders the stable and efficient operation of the entire welding process. Therefore, a narrow-gap welding device for steel plates is urgently needed to solve these problems. Utility Model Content
[0004] The purpose of this invention is to provide a narrow-gap welding device for steel plates, in order to solve the problem mentioned in the background art that traditional narrow-gap welding devices for steel plates are unable to quickly absorb the fumes generated during the welding process, which may affect the laser or vision sensors used to monitor the welding process.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a narrow gap welding device for steel plates, comprising a main plate, a robotic arm fixedly connected to the top surface of the main plate, a welding device fixedly connected to the swing arm end of the robotic arm, and a smoke absorption assembly provided on the top surface of the main plate;
[0006] The smoke absorption assembly includes an absorption box, which is fixedly connected to the top surface of the main body plate. An absorption tube is fixedly connected to the inner wall of the absorption box. A Z-shaped block is fixedly connected to the bottom surface of the welding device. An absorption box is fixedly connected to the bottom surface of the Z-shaped block. The surface of the absorption tube is fixedly connected to the inner wall of the absorption box. A mounting bracket is fixedly connected to the inner wall of the absorption box. Two first fans are fixedly connected to the inner wall of the mounting bracket.
[0007] In this technical solution, the smoke absorption component, when the first fan rotates, works in conjunction with the absorption tube and absorption box to absorb the smoke generated during narrow-gap welding of steel plates, thereby preventing the smoke from affecting the laser or vision sensors used to monitor the welding process and thus affecting the welding effect.
[0008] Preferably, a fixing frame is fixedly connected to the inner wall of the absorption box, a first filter layer is fixedly connected to the inner wall of the fixing frame, a support frame is fixedly connected to the inner wall of the absorption box, and a second filter layer is fixedly connected to the inner wall of the support frame.
[0009] In this technical solution, a first filter layer and a second filter layer are used in conjunction. The first filter layer is composed of sintered metal fiber felt. When solder fumes pass through the first filter layer, the particles in the fumes are intercepted in the pores on the fiber surface and inside, thereby effectively filtering metal particles and larger impurities in the solder fumes. The second filter layer is composed of fiber filter cotton. When solder fumes pass through the second filter layer, the particles in the fumes are intercepted again by the fibers. By using different materials for filtration simultaneously, the filtration effect of solder fumes is improved.
[0010] Preferably, the inner wall of the absorption box is fixedly connected to an installation chamber, and the inner wall of the installation chamber is fixedly connected to activated carbon.
[0011] In this technical solution, the activated carbon is used to facilitate the purification of fumes while removing the pungent odor of welding fumes.
[0012] Preferably, a connecting frame is fixedly connected to the inner wall of the absorption box, and two second fans are fixedly connected to the inner wall of the connecting frame.
[0013] In this technical solution, the two secondary fans facilitate the increase of suction power and accelerate the discharge of the purified residual gas.
[0014] Preferably, the bottom surface of the absorption box is provided with multiple vent holes, and the sizes of the multiple vent holes are matched.
[0015] In this technical solution, multiple vents are provided to facilitate the rapid discharge of the purified residual gas.
[0016] Preferably, the surface of the absorption tube is fixedly connected to two fixing clips, and the sidewalls of the two fixing clips are fixedly connected to the sidewalls of the robotic arm.
[0017] In this technical solution, two fixing clips are provided to facilitate fixing to the absorption tube.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] The smoke absorption component, when the first fan rotates, works in conjunction with the absorption tube and absorption box to absorb the smoke generated during narrow-gap welding of steel plates. This prevents the smoke from affecting the laser or vision sensors used to monitor the welding process and thus the welding effect. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the fixing clip structure of this utility model;
[0022] Figure 3 This is a cross-sectional view of the smoke absorption component of this utility model;
[0023] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle.
[0024] In the diagram: 1. Main body plate; 2. Robotic arm; 3. Smoke absorption assembly; 301. Absorption box; 302. Absorption tube; 303. Z-shaped block; 304. Absorption box; 305. Mounting frame; 306. First fan; 307. Fixing frame; 308. First filter layer; 309. Support frame; 310. Second filter layer; 311. Mounting chamber; 312. Activated carbon; 313. Connecting frame; 314. Second fan; 315. Vent hole; 316. Fixing clamp. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-4This utility model provides a narrow-gap welding device for steel plates, including a main plate 1. A robotic arm 2 is fixedly connected to the top surface of the main plate 1, and a welding device is fixedly connected to the swing arm end of the robotic arm 2. A smoke absorption assembly 3 is provided on the top surface of the main plate 1. The smoke absorption assembly 3 includes an absorption box 301, which is fixedly connected to the top surface of the main plate 1. An absorption tube 302 is fixedly connected to the inner wall of the absorption box 301. A Z-shaped block 303 is fixedly connected to the bottom surface of the welding device, and an absorption box 304 is fixedly connected to the bottom surface of the Z-shaped block 303. The surface of the absorption tube 302 is fixedly connected to the inner wall of the absorption box 304. The inner wall of the absorption box 301 is fixedly connected to a mounting bracket 305. The inner wall of the mounting bracket 305 is fixedly connected to two first fans 306. Through the set smoke absorption component 3, when the first fan 306 rotates, the set absorption pipe 302 and absorption box 304 work together to absorb the smoke generated during the narrow gap welding of steel plates, thereby avoiding the smoke from affecting the laser or vision sensor that monitors the welding process and affecting the welding effect. The robotic arm 2 and the welding device are common control and welding components in this technology and are considered prior art in this application, so they will not be described in detail here.
[0027] Furthermore, a fixing frame 307 is fixedly connected to the inner wall of the absorption box 301, and a first filter layer 308 is fixedly connected to the inner wall of the fixing frame 307. A support frame 309 is fixedly connected to the inner wall of the absorption box 301, and a second filter layer 310 is fixedly connected to the inner wall of the support frame 309. The first filter layer 308 and the second filter layer 310 work together. The first filter layer 308 is composed of sintered metal fiber felt. When solder fumes pass through the first filter layer 308, the particles in the fumes are intercepted in the pores on the fiber surface and inside, thereby effectively filtering metal particles and larger impurities in the solder fumes. The second filter layer 310 is composed of fiber filter cotton. When solder fumes pass through the second filter layer 310, the particles in the fumes are intercepted again by the fibers. The filtration method of using different materials simultaneously improves the filtration effect of solder fumes.
[0028] Furthermore, an installation chamber 311 is fixedly connected to the inner wall of the absorption box 301, and activated carbon 312 is fixedly connected to the inner wall of the installation chamber 311. The activated carbon 312 facilitates the removal of the pungent effect of welding fumes while purifying the fumes.
[0029] Furthermore, a connecting frame 313 is fixedly connected to the inner wall of the absorption box 301, and two second fans 314 are fixedly connected to the inner wall of the connecting frame 313. The two second fans 314 facilitate the increase of suction power and accelerate the discharge of the purified residual gas.
[0030] Furthermore, the bottom surface of the absorption box 301 is provided with multiple vent holes 315, the multiple vent holes 315 are matched in size, and the multiple vent holes 315 make it easy for the purified residual gas to be discharged quickly.
[0031] Furthermore, two fixing clips 316 are fixedly connected to the surface of the absorption tube 302. The sidewalls of the two fixing clips 316 are fixedly connected to the sidewall of the robotic arm 2. The two fixing clips 316 facilitate fixing to the absorption tube 302.
[0032] Working principle: The fume absorption component 3, when the first fan 306 rotates, works in conjunction with the absorption tube 302 and absorption box 304 to absorb fumes generated during narrow-gap welding of steel plates. This prevents the fumes from affecting the laser or vision sensors monitoring the welding process and thus the welding effect. The first filter layer 308 and the second filter layer 310 work together. The first filter layer 308 is composed of sintered metal fiber felt. When solder fumes pass through the first filter layer 308, the particles in the fumes are intercepted within the fibers. The second filter layer 310 is composed of fiber filter cotton. By setting the second filter layer 310, when the solder fume passes through the second filter layer 310, the particles in the fume will be intercepted by the fibers again. The filtration method of using different materials for filtration at the same time improves the filtration effect of the soldering fume. The activated carbon 312 makes it easy to remove the pungent effect of the soldering fume while purifying the fume. The two second fans 314 make it easy to increase the suction power and accelerate the emission of the purified residual gas.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A narrow-gap welding device for steel plates, comprising a main body plate (1), characterized in that: A robotic arm (2) is fixedly connected to the top surface of the main body plate (1), and a welding device is fixedly connected to the swing arm end of the robotic arm (2). A smoke absorption assembly (3) is provided on the top surface of the main body plate (1). The smoke absorption assembly (3) includes an absorption box (301), which is fixedly connected to the top surface of the main body plate (1). An absorption tube (302) is fixedly connected to the inner wall of the absorption box (301). A Z-shaped block (303) is fixedly connected to the bottom surface of the welding device. An absorption box (304) is fixedly connected to the bottom surface of the Z-shaped block (303). The surface of the absorption tube (302) is fixedly connected to the inner wall of the absorption box (304). A mounting bracket (305) is fixedly connected to the inner wall of the absorption box (301). Two first fans (306) are fixedly connected to the inner wall of the mounting bracket (305).
2. The narrow gap welding equipment for steel plates according to claim 1, characterized in that: The inner wall of the absorption box (301) is fixedly connected to a fixing frame (307), the inner wall of the fixing frame (307) is fixedly connected to a first filter layer (308), the inner wall of the absorption box (301) is fixedly connected to a support frame (309), and the inner wall of the support frame (309) is fixedly connected to a second filter layer (310).
3. The narrow-gap welding equipment for steel plates according to claim 1, characterized in that: An installation chamber (311) is fixedly connected to the inner wall of the absorption box (301), and activated carbon (312) is fixedly connected to the inner wall of the installation chamber (311).
4. The narrow gap welding equipment for steel plates according to claim 1, characterized in that: The inner wall of the absorption box (301) is fixedly connected to a connecting frame (313), and the inner wall of the connecting frame (313) is fixedly connected to two second fans (314).
5. The narrow gap welding equipment for steel plates according to claim 1, characterized in that: The bottom surface of the absorption box (301) is provided with a plurality of vent holes (315), and the vent holes (315) are matched in size.
6. The narrow gap welding equipment for steel plates according to claim 1, characterized in that: The surface of the absorption tube (302) is fixedly connected to two fixing clips (316), and the sidewalls of the two fixing clips (316) are fixedly connected to the sidewalls of the robotic arm (2).