A laser welding device for flange sleeve production

Abstract

The present invention discloses a laser welding device for flange sleeve production, belonging to the technical field of laser welding. It includes a feeding component for feeding the flange ring. A feeding component connected to the feeding component is used to fit the cross-section of the flange ring with the pipe and center the flange ring. The feeding component and the feeding component can adapt to flange rings with multiple inner and outer diameter sizes. In the above way, the present invention drives the limiting component to cooperate with the feeding component through the moving platform to achieve sequential feeding of the flange ring, which can adapt to flange rings with different inner and outer diameters and pipes with different inner and outer diameters and different lengths. And through the rotary platform, the feeding of the pipe and the discharging of the welded flange sleeve can be carried out simultaneously to improve production efficiency. During welding, it is detected in real time by a vision sensor and an infrared sensor, and then analyzed and coordinated by the controller to intelligently detect welding defects in real time and perform intelligent automatic repair, improving the qualified rate and production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and particularly relates to a laser welding device for the production of flange sleeves. Background Art

[0002] In the field of modern industrial manufacturing, flange sleeves, as key components connecting various pipeline systems, are widely used in many industries such as petroleum, chemical industry, electric power, and construction. Their quality directly affects the sealing performance, stability, and safety of the entire pipeline system. Welding, as the core process in the production of flange sleeves, plays a decisive role in product quality.

[0003] As an advanced welding process, laser welding technology has been increasingly widely used in industrial production in recent years. It uses a laser beam with a high energy density as the heat source to rapidly melt a local area of the welded parts and achieve material connection.

[0004] Most of the existing flange sleeves rely on manual welding. Usually, manual feeding of the flange plates is adopted, which is inefficient and prone to human errors, and it is difficult to achieve continuous and stable feeding.

[0005] For some semi-automatic welding devices, they are usually designed for specific-sized flange rings and pipes, and it is difficult to adapt to flange rings and pipes with different inner and outer diameters. They lack flexible size adaptation ability. When facing the production of products with multiple specifications, it is necessary to frequently replace the corresponding workpieces or perform complex manual adjustments, which seriously affects production efficiency.

[0006] In the existing production, the processes of pipe feeding and the feeding of the flange sleeves after welding are often carried out independently. The equipment is idle during feeding or discharging, wasting a large amount of time and affecting production efficiency. At the same time, in the existing production of flange sleeve welding, most rely on manual visual inspection or simple physical measurement to detect welding defects, and it is impossible to discover welding problems in real time and accurately. When welding defects are found, the defective flange sleeves have already left the production line, and manual intervention is often required for repair. This is not only inefficient, but also the repair effect depends on the experience and skill level of the workers.

[0007] Based on this, the present invention designs a laser welding device for the production of flange sleeves to solve the above problems. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a laser welding device for the production of flange sleeves.

[0009] The technical solution adopted to solve the above technical problem is:

[0010] A laser welding device for flange sleeve production, comprising a feeding component for feeding a flange ring, wherein a feeding component for fitting the cross-section of the flange ring and the pipe and centering the flange ring is connected to the feeding component, and the feeding component and the feeding component can be adapted to flange rings with multiple inner and outer diameter sizes;

[0011] It further includes a pipe fixing component, the pipe is fixed by the pipe fixing component, and the pipe fixing component can adapt to pipes with different lengths and different inner and outer diameters. The pipe fixing component is a double-station, and a pipe can be loaded while the welded flange sleeve is unloaded. A rotary platform is installed below the pipe fixing component, and a scissor lift platform is installed below the rotary platform. A laser welding device for welding the flange ring and the pipe is arranged at the upper end position between the feeding component and the pipe fixing component. A visual sensor is fixedly installed on the front side of the laser welding head in the laser welding device, and an infrared sensor is fixedly installed on the rear side of the laser welding head in the laser welding device;

[0012] The feeding component includes a moving platform, a limiting component, a follower component and a centering component. The moving platform is connected to the limiting component, the follower component and the centering component. The limiting component is connected to the feeding component and the follower component. The follower component is connected to the centering component.

[0013] Through the above technical solutions, the feeding of the flange ring is realized by driving the limiting component by the moving platform to cooperate with the feeding component. The flange ring after feeding is limited and initially positioned by the limiting component. Both the feeding component and the limiting component can be adjusted to adapt to flange rings with different inner and outer diameters. Different inner and outer diameters and different lengths of pipes can be fixed by the pipe fixing component and the pipe can be driven to rotate. The centering component cooperates with the fixed pipe to center flange rings with different inner and outer diameters and make the cross-section of the flange ring fit the pipe. The position of the centering component can be adjusted according to the length of the pipe by driving the centering component by the moving platform, with higher adaptability. At the same time, driving the pipe fixing component to rotate by the rotary platform can make the feeding of the pipe and the unloading of the welded flange sleeve be carried out simultaneously, improving the production efficiency. During welding, the visual sensor detects the bubble reflection points on the surface of the molten pool, and the infrared sensor detects the sudden drop in local temperature. Then, through the analysis and coordination of the controller, the welding defects can be intelligently and real-time detected and the angle can be adjusted by the pipe fixing component for intelligent automatic repair, improving the qualified rate. The adaptation, centering and welding of flange sleeves with different sizes are realized, and real-time intelligent detection and repair are achieved. The laser welding device is composed of a two-dimensional moving platform, a robotic arm and a laser welding head, all of which are existing mature technologies. The laser welding device is fixedly installed at the upper end position between the feeding component and the pipe fixing component through a frame.

[0014] Further, the feeding component includes a guiding frame, a first support frame, a first avoidance groove, and a material blocking component. The upper end surface of the first support frame is fixedly connected to the lower end surface of the guiding frame. A first avoidance groove is provided at the middle position of the guiding frame. The material blocking component is connected to the guiding frame and the limiting component.

[0015] Through the above technical solution, the rear end of the guiding frame is connected to the conveyor belt of the transportation flange ring, and the conveyor belt starts after the feeding of the flange ring at the frontmost end is completed and stops after the guiding frame is filled with flange rings.

[0016] Further, the material blocking component includes a first material blocking plate, a second material blocking plate, an adjusting plate, a first sliding rod, a spring, and a connecting baffle. The first material blocking plate is arranged at the front end of the guiding frame. The lower left side of the first material blocking plate is fixedly connected to the upper front side surface of the connecting baffle. The second material blocking plate is arranged at the middle position of the guiding frame. The first avoidance groove is used to avoid the second material blocking plate. A plurality of groups of mounting holes are equidistantly arranged at the rear side of the adjusting plate. The lower right side of the second material blocking plate is detachably connected to the adjusting plate by bolts. Two groups of the first sliding rods are arranged in the front-back direction. One ends of the two groups of first sliding rods are fixedly connected to the left side wall of the adjusting plate. The other ends of the two groups of first sliding rods are fixedly connected to the right side wall of the connecting baffle. The two groups of first sliding rods are respectively connected to the mounting seats at the front and rear sides of the lower end of the guiding frame in a limited sliding manner. Two groups of springs are arranged in the front-back direction and respectively sleeved on the outer sides of the two groups of first sliding rods. One end of the spring is fixedly connected to the left side wall of the adjusting plate, and the other end of the spring is fixedly connected to the right side wall of the connecting baffle. The connecting baffle is connected to the limiting component.

[0017] Through the above technical solution, the connecting baffle drives the first sliding rod to slide on the mounting seats at the front and rear sides of the lower end of the guiding frame. The first sliding rod drives the adjusting plate, so that the first material blocking plate and the second material blocking plate move synchronously. When the moving platform drives the limiting component to reset to the left, the first material blocking plate moves away to release the flange ring at the frontmost end. At the same time, the second material blocking plate moves to the front end of the next group of flange rings to limit the next group of flange rings. When the first material blocking plate resets, the second material blocking plate moves away and the next group of flange rings is released and moves to the frontmost end. In this way, sequential feeding is realized. At the same time, the mounting position of the second material blocking plate can be adjusted through the plurality of groups of mounting holes at the rear side of the adjusting plate to adapt to flange rings with different outer diameters.

[0018] Further, the mobile platform includes a linear module, a mounting base plate, a first mounting bracket, a mounting vertical plate, a first mounting ear, a second mounting ear, and a third mounting ear. Two groups of linear modules are arranged in the front and rear. The lower end surface of the mounting base plate is fixedly connected to the upper end surfaces of the sliders on the two groups of linear modules. The first mounting bracket and the mounting vertical plate are fixedly installed on the upper end surface of the mounting base plate. The mounting base plate is connected to the limiting component. The first mounting bracket is connected to the centering component. Two groups of the first mounting ears are arranged left and right and are fixedly installed on the rear end surface of the mounting vertical plate. The front end surface of the second mounting ear is fixedly connected to the rear end surface of the mounting vertical plate. The front end surface of the third mounting ear is fixedly connected to the rear end surface of the mounting vertical plate. The mounting base plate, the first mounting bracket, the first mounting ear, the second mounting ear, and the third mounting ear are connected to the follower component.

[0019] Through the above technical solution, the linear module drives the movement of the mounting base plate, and by adjusting the moving distance of the mounting base plate to drive the centering component, the length of pipelines with different lengths can be adapted.

[0020] Further, the limiting component includes a V-shaped base plate, an upper limiting frame, a lower limiting frame, a limiting baffle, a second support frame, and a driving rod. The bottom surface of the V-shaped base plate is fixedly connected to the upper end surface of the second support frame. The second support frame is fixedly installed on the upper end surface of the mounting base plate. The rear end of the V-shaped base plate is arranged inside the inner end of the lower limiting frame, and the width of the V-shaped base plate is smaller than the distance between the two inner side walls of the lower limiting frame. A plurality of threaded holes are equally spaced on the front panel of the V-shaped base plate. The lower end of the limiting baffle is sleeved on the front side panel of the V-shaped base plate and is detachably connected to the V-shaped base plate by screws. The upper end of the limiting baffle is in contact connection with the outer side wall of the flange ring. The front end surface of the driving rod is fixedly connected to the rear end surface of the second support frame. The left side wall of the rear end of the driving rod is in contact connection with the right side wall of the front end of the connecting baffle. The upper limiting frame and the lower limiting frame are connected to the follower component.

[0021] Through the above technical solution, the V-shaped base plate can make the centers of flange rings with different inner and outer diameters be at the same vertical height for preliminary positioning. When replacing flange rings with different inner and outer diameters, only by lifting the height of the pipeline fixing component through the scissor lift platform, the centers of the pipeline and the replaced flange ring can be aligned. The alignment of the centers can be quickly achieved, reducing the downtime during changeover. Then, the limiting baffle is used to block and limit the rolled-in flange ring to prevent damage to the equipment. A plurality of threaded holes are equally spaced on the front side panel of the V-shaped base plate, which can adjust the installation position of the limiting baffle to achieve the blocking and limiting of flange rings with different inner and outer diameters. The upper limiting frame and the lower limiting frame cooperate to guide and limit the flange ring at the same time. The rear sides of the upper limiting frame and the lower limiting frame are gradually opened from front to back, facilitating the rolling-in of the flange ring. The connecting baffle is driven by the driving rod to achieve feeding.

[0022] Further, the follower assembly includes a first connecting rod, an L-shaped mounting plate, a first rack, a first gear, a first bevel gear, a second bevel gear, a second gear, a second rack, a third rack, a lower connecting plate, an upper connecting plate, a second sliding rod, a third sliding rod, and a fourth sliding rod. The rear end of the first connecting rod is connected to the centering assembly, and the right side wall of the front end of the first connecting rod is fixedly connected to the left side wall of the L-shaped mounting plate. The rear end face of the first rack is fixedly connected to the front side face of the vertical panel of the L-shaped mounting plate. Two groups of mounting blocks are respectively fixedly installed at both ends of the lower end face of the L-shaped mounting plate. The mounting blocks are fixedly connected to the outer side wall of the fourth sliding rod. The left end of the fourth sliding rod is in limit sliding connection with the mounting seat on the inner top surface of the first mounting frame and is in limit sliding connection with the third mounting ear. The first rack is meshed with the first gear. The first gear is rotatably installed at the rear end of the second mounting ear. The upper end face of the first gear is fixedly connected to the lower end face of the first bevel gear. The first bevel gear is meshed with the second bevel gear. The right side wall of the second bevel gear is fixedly connected to the left side wall of the second gear. The second gear is rotatably installed at the rear ends of two groups of first mounting ears. Both the second rack and the third rack are meshed with the second gear. The second rack is fixedly installed on the front side wall of the upper end of the lower connecting plate. The rear side wall of the lower end of the lower connecting plate is fixedly connected to the front end face of the lower limiting frame. The front side wall of the third rack is fixedly connected to the rear side wall of the lower end of the upper connecting plate. A plurality of groups of threaded holes are equidistantly opened on the upper end of the upper connecting plate. The upper connecting plate and the rear end of the upper limiting frame are detachably connected by screws. Two groups of mounting seats are respectively fixedly installed on the front side walls of the lower ends of the lower connecting plate and the upper connecting plate in an up-and-down arrangement. The lower end faces of the second sliding rod and the third sliding rod are fixedly connected to the upper end face of the mounting base plate. The second sliding rod is in limit sliding connection with the mounting seat on the lower connecting plate, and the third sliding rod is in limit sliding connection with the mounting seat on the upper connecting plate.

[0023] Through the above technical solution, by following the centering assembly with the follower assembly, when the flange ring is pushed towards the pipeline, the follower assembly can move the upper limiting frame and the lower limiting frame away to release the limit of the flange ring. The plurality of groups of threaded holes equidistantly opened on the upper end of the upper connecting plate can adjust the height of the upper limiting frame to adapt to flange rings with different outer diameters. The second sliding rod is in limit sliding connection with the mounting seat on the lower connecting plate, and the third sliding rod is in limit sliding connection with the mounting seat on the upper connecting plate for guiding.

[0024] Further, the centering assembly includes a hydraulic cylinder, a tapered block, a second avoidance groove, an assembly plate and an assembly block. The hydraulic cylinder is fixedly installed on the upper end surface of the first mounting bracket. The rear end of the first connecting rod is fixedly installed on the outer side wall of the output end of the hydraulic cylinder. The output end of the hydraulic cylinder is fixedly connected to the rear end surface of the lower end of the assembly plate. The left end of the tapered block is rotatably installed on the right end surface of the assembly block. A second avoidance groove is formed on the right side of the tapered block. The tapered block tapers from left to right. A plurality of groups of mounting holes are formed in the assembly plate. The assembly plate and the assembly block are detachably connected by screws.

[0025] Through the above technical solution, the hydraulic cylinder drives the assembly plate. The assembly plate drives the tapered block through the assembly block to push the flange ring towards the pipeline. The tapered block centers the flange ring through its conical surface, which can not only make the cross-section of the flange ring fit the pipeline, but also support the inner end of the flange ring to prevent the flange ring from deforming when the laser welding equipment welds the flange ring and the pipeline. The second avoidance groove avoids the pipeline fixing component, so that the front end of the tapered block will not contact the pipeline fixing component. When replacing the inner and outer diameter size models of the flange ring, it is adapted by adjusting the assembly position of the assembly block on the assembly plate.

[0026] Further, the pipeline fixing component includes an installation shell, a partition board, a rotating component, a double-output shaft motor, an inner support component and an L-shaped limiting plate. The lower end surface of the installation shell is fixedly connected to the output end of the rotary platform. The lower end surface of the rotary platform is fixedly connected to the output end of the scissor lift platform. The partition board is fixedly installed on the left and right inner side walls of the installation shell. The installation shell, the partition board are connected to the rotating component. The installation shell, the rotating component, the double-output shaft motor, the L-shaped limiting plate are connected to the inner support component. A controller is fixedly installed on the right side of the upper end surface of the partition board. Two groups of inner support components are symmetrically arranged on the left and right.

[0027] Through the above technical solution, the visual sensor and the infrared sensor transmit the detection information to the controller. The controller analyzes and cooperates to detect in real time whether there are defects in the welding, and controls the pipeline fixing component to adjust the angle by the laser welding equipment for repair, realizing intelligent real-time detection and intelligent repair.

[0028] Further, the rotating assembly includes a driving motor, a third bevel gear, a fourth bevel gear, a transmission rod, a third gear, and a fourth gear. The driving motor is fixedly installed at the middle position of the upper end face of the partition plate. The output end of the driving motor passes through the partition plate, and the output end of the driving motor is fixedly connected to the upper end face of the third bevel gear. The third bevel gear is meshed with the fourth bevel gear. The fourth bevel gear is fixedly installed in the middle of the outer side wall of the transmission rod. The transmission rod is rotatably installed on the left and right inner side walls of the installation housing. Two sets of the third gears and the fourth gears are arranged side by side left and right. The two sets of third gears are respectively fixedly installed on the outer side walls of the left and right ends of the transmission rod. The third gears on both sides are respectively meshed with the fourth gears on both sides. The fourth gear is connected to the inner support assembly.

[0029] Through the above technical solution, the inner support assembly can be driven to rotate by the rotating assembly. The tapered block and the assembly block are rotatable, that is, when the inner support assembly drives the pipeline to rotate, the flange ring on the tapered block will rotate synchronously without additional rotating equipment. The flange ring and the pipeline are welded into a whole once around by the laser welding equipment.

[0030] Further, the inner support assembly includes a first mounting sleeve, a threaded rod, a second mounting sleeve, a second connecting rod, a third connecting rod, an inner support plate, and a second mounting bracket. The two sets of fourth gears are respectively fixedly installed on the outer side walls of the inner ends of the two sets of first mounting sleeves. The two sets of first mounting sleeves are respectively rotatably connected to the left and right panels of the installation housing. The outer sides of the two sets of second mounting brackets are respectively fixedly connected to the inner sides of the two sets of fourth gears. The inner sides of the two sets of second mounting brackets are detachably connected to the left and right end faces of the double-output shaft motor by screws respectively. The two output ends of the double-output shaft motor are respectively fixedly connected to the inner ends of the threaded rods on both sides. The threaded rods on both sides are respectively connected to the first mounting sleeves on both sides with limited rotation. The outer ends of the threaded rods on both sides are respectively threadedly connected to the second mounting sleeves on both sides. The inner support plates are arranged in a circumferential array of three groups. The inner sides of each group of inner support plates are respectively hinged to the upper ends of a group of second connecting rods and two groups of third connecting rods. The lower end of the second connecting rod is hinged to the mounting ear at the outer end of the first mounting sleeve. The lower end of the third connecting rod is hinged to the mounting ear on the second mounting sleeve. A plurality of threaded holes are equally spaced on the outer sides of each group of inner support plates. A group of L-shaped limiting plates are detachably connected to each group of inner support plates by screws.

[0031] Through the above technical solution, the inner support assembly can support, fix and center pipelines with different inner and outer diameters. By setting the L-shaped limiting plates, it is convenient to position the pipelines during installation. When it is necessary to position pipelines with different lengths, the installation positions of the L-shaped limiting plates can be adjusted.

[0032] The beneficial effects of the present invention are as follows: (1) The present invention drives the limiting component to cooperate with the feeding component through the moving platform to realize the sequential feeding of the flange rings; (2) Both the feeding component and the limiting component can be adapted to flange rings with different inner and outer diameters. The pipe fixing component can fix pipes with different inner and outer diameters and different lengths and can drive the pipes to rotate. The centering component can center flange rings with different inner and outer diameters in cooperation with the fixed pipe and make the cross-sections of the flange rings and the pipes fit. The moving platform can drive the centering component to adjust the position of the centering component according to the length of the pipe for adaptation; (3) Driving the pipe fixing component to rotate through the rotary platform can enable the feeding of the pipe and the discharging of the welded flange sleeve to be carried out simultaneously, improving the production efficiency; (4) During welding, the visual sensor detects the bubble reflection points on the surface of the molten pool, and the infrared sensor detects the sudden drop in local temperature. Then, through the analysis and coordination of the controller, the welding defects can be intelligently and real-time detected, and the angle can be adjusted through the pipe fixing component for intelligent automatic repair, improving the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a three-dimensional view of a laser welding device for flange sleeve production according to the present invention Figure 1 ;

[0034] Figure 2 is a front view of a laser welding device for flange sleeve production according to the present invention;

[0035] Figure 3 is a left view of a laser welding device for flange sleeve production according to the present invention;

[0036] Figure 4 is a sectional view taken along the Figure 3 A-A direction;

[0037] Figure 5 is a schematic diagram of the feeding component and the material feeding component;

[0038] Figure 6 is a schematic diagram of the feeding component;

[0039] Figure 7 is a schematic diagram of the material feeding component Figure 1 ;

[0040] Figure 8 is a schematic diagram of the material feeding component Figure 2 ;

[0041] Figure 9 is a sectional view of the pipe fixing component;

[0042] Figure 10 is Figure 7 the enlarged view at B in

[0043] Reference numerals:

[0044] 1. Loading component; 11. Guide frame; 12. First support frame; 13. First avoidance groove; 14. Material blocking component; 141. First material blocking plate; 142. Second material blocking plate; 143. Adjusting plate; 144. First sliding rod; 145. Spring; 146. Connecting baffle; 2. Feeding component; 21. Moving platform; 211. Linear module; 212. Installation bottom plate; 213. First installation frame; 214. Installation vertical plate; 215. First installation ear; 216. Second installation ear; 217. Third installation ear; 22. Limiting component; 221. V-shaped bottom plate; 222. Upper limiting frame; 223. Lower limiting frame; 224. Limiting baffle; 225. Second support frame; 226. Driving rod; 23. Follow-up component; 231. First connecting rod; 232. L-shaped installation plate; 233. First rack; 234. First gear; 235. First bevel gear; 236. Second bevel gear; 237. Second gear; 238. Second rack; 239. Third rack; 2310. Lower connecting plate; 2311. Upper connecting plate; 2312. Second sliding rod; 2313. Third sliding rod; 2314. Fourth sliding rod; 24. Centering component; 241. Hydraulic cylinder; 242. Tapered block; 243. Second avoidance groove; 244. Assembly plate; 245. Assembly block; 3. Pipeline fixing component; 31. Installation housing; 32. Partition board; 33. Rotating component; 331. Driving motor; 332. Third bevel gear; 333. Fourth bevel gear; 334. Transmission rod; 335. Third gear; 336. Fourth gear; 34. Double-output shaft motor; 35. Inner support component; 351. First installation sleeve; 352. Threaded rod; 353. Second installation sleeve; 354. Second connecting rod; 355. Third connecting rod; 356. Inner support plate; 357. Second installation frame; 36. L-shaped limiting plate; 4. Scissor lift platform; 5. Rotary platform; 6. Laser welding equipment; 7. Vision sensor; 8. Infrared sensor; 9. Flange ring; 10. Pipeline; 100. Controller. Specific embodiments

[0045] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0046] The "left", "right", "front", "rear", "upper" and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0047] Example 1: In some embodiments, please refer to the Figures 1 - 10, a laser welding device for flange sleeve production, including a feeding component 1 for feeding the flange ring 9, a feeding component 2 connected to the feeding component 1 for fitting the cross-section of the flange ring 9 with the pipe 10 and centering the flange ring 9. The feeding component 1 and the feeding component 2 can be adapted to flange rings 9 with multiple inner and outer diameter sizes;

[0048] It also includes a pipe fixing component 3. The pipe 10 is fixed through the pipe fixing component 3, and the pipe fixing component 3 can adapt to pipes 10 with different lengths and different inner and outer diameters. The pipe fixing component 3 is a double-station, which can load the pipe 10 on one side and unload the welded flange sleeve on the other side. A rotary platform 5 is installed below the pipe fixing component 3, and a scissor lift platform 4 is installed below the rotary platform 5. At the upper position between the feeding component 2 and the pipe fixing component 3, a laser welding device 6 for welding the flange ring 9 and the pipe 10 is provided. A vision sensor 7 is fixedly installed on the front side of the laser welding head in the laser welding device 6, and an infrared sensor 8 is fixedly installed on the rear side of the laser welding head in the laser welding device 6.

[0049] The feeding component 1 includes a guiding frame 11, a first support frame 12, a first avoidance groove 13, and a material blocking component 14. The upper end surface of the first support frame 12 is fixedly connected to the lower end surface of the guiding frame 11. A first avoidance groove 13 is opened at the middle position of the guiding frame 11. The material blocking component 14 is connected to the guiding frame 11 and the limiting component 22.

[0050] The material blocking component 14 includes a first material blocking plate 141, a second material blocking plate 142, an adjusting plate 143, a first sliding rod 144, a spring 145, and a connecting baffle 146. The first material blocking plate 141 is arranged at the front end of the guiding frame 11. The lower left side of the first material blocking plate 141 is fixedly connected to the upper front end surface of the connecting baffle 146. The second material blocking plate 142 is arranged at the middle position of the guiding frame 11. The first avoidance groove 13 is used to avoid the second material blocking plate 142. Multiple groups of mounting holes are equally spaced on the rear side of the adjusting plate 143. The lower right side of the second material blocking plate 142 is detachably connected to the adjusting plate 143 through bolts. Two groups of first sliding rods 144 are arranged in a front-back arrangement. One ends of the two groups of first sliding rods 144 are fixedly connected to the left side wall of the adjusting plate 143, and the other ends of the two groups of first sliding rods 144 are fixedly connected to the right side wall of the connecting baffle 146. The two groups of first sliding rods 144 are respectively connected to the mounting seats on the front and rear sides of the lower end of the guiding frame 11 in a limiting sliding manner. Two groups of springs 145 are arranged in a front-back arrangement and are respectively sleeved on the outer sides of the two groups of first sliding rods 144. One end of the spring 145 is fixedly connected to the left side wall of the adjusting plate 143, and the other end of the spring 145 is fixedly connected to the right side wall of the connecting baffle 146. The connecting baffle 146 is connected to the limiting component 22.

[0051] The feeding component 2 includes a moving platform 21, a limiting component 22, a follow-up component 23 and a centering component 24. The moving platform 21 is connected to the limiting component 22, the follow-up component 23 and the centering component 24. The limiting component 22 is connected to the feeding component 1 and the follow-up component 23. The follow-up component 23 is connected to the centering component 24.

[0052] The moving platform 21 includes a linear module 211, a mounting base plate 212, a first mounting frame 213, a mounting vertical plate 214, a first mounting ear 215, a second mounting ear 216 and a third mounting ear 217. Two groups of linear modules 211 are arranged in the front and back. The lower end face of the mounting base plate 212 is fixedly connected to the upper end faces of the sliders on the two groups of linear modules 211. The first mounting frame 213 and the mounting vertical plate 214 are fixedly installed on the upper end face of the mounting base plate 212. The mounting base plate 212 is connected to the limiting component 22. The first mounting frame 213 is connected to the centering component 24. Two groups of first mounting ears 215 are arranged left and right and are fixedly installed on the rear end face of the mounting vertical plate 214. The front end face of the second mounting ear 216 is fixedly connected to the rear end face of the mounting vertical plate 214. The front end face of the third mounting ear 217 is fixedly connected to the rear end face of the mounting vertical plate 214. The mounting base plate 212, the first mounting frame 213, the first mounting ear 215, the second mounting ear 216 and the third mounting ear 217 are connected to the follow-up component 23.

[0053] The limiting component 22 includes a V-shaped base plate 221, an upper limiting frame 222, a lower limiting frame 223, a limiting baffle 224, a second support frame 225 and a driving rod 226. The bottom surface of the V-shaped base plate 221 is fixedly connected to the upper end face of the second support frame 225. The second support frame 225 is fixedly installed on the upper end face of the mounting base plate 212. The rear end of the V-shaped base plate 221 is arranged inside the inner end of the lower limiting frame 223 and the width of the V-shaped base plate 221 is less than the distance between the two inner side walls of the lower limiting frame 223. A plurality of groups of threaded holes are evenly opened on the front panel of the front end of the V-shaped base plate 221. The lower end of the limiting baffle 224 is sleeved on the front side panel of the V-shaped base plate 221 and is detachably connected to the V-shaped base plate 221 by screws. The upper end of the limiting baffle 224 is in contact connection with the outer side wall of the flange ring 9. The front end face of the driving rod 226 is fixedly connected to the rear end face of the second support frame 225. The left side wall of the rear end of the driving rod 226 is in contact connection with the right side wall of the front end of the connection baffle 146. The upper limiting frame 222 and the lower limiting frame 223 are connected to the follow-up component 23.

[0054] The follower assembly 23 includes a first connecting rod 231, an L-shaped mounting plate 232, a first rack 233, a first gear 234, a first bevel gear 235, a second bevel gear 236, a second gear 237, a second rack 238, a third rack 239, a lower connecting plate 2310, an upper connecting plate 2311, a second sliding rod 2312, a third sliding rod 2313 and a fourth sliding rod 2314. The rear end of the first connecting rod 231 is connected to the centering assembly 24. The right side wall of the front end of the first connecting rod 231 is fixedly connected to the left side wall of the L-shaped mounting plate 232. The rear end face of the first rack 233 is fixedly connected to the front side face of the vertical panel of the L-shaped mounting plate 232. Two groups of mounting blocks are fixedly installed at both ends of the lower end face of the L-shaped mounting plate 232. The mounting blocks are fixedly connected to the outer side wall of the fourth sliding rod 2314. The left end of the fourth sliding rod 2314 is in limit sliding connection with the mounting seat on the inner top surface of the first mounting frame 213. The fourth sliding rod 2314 is in limit sliding connection with the third mounting ear 217. The first rack 233 is meshed with the first gear 234. The first gear 234 is rotatably installed at the rear end of the second mounting ear 216. The upper end face of the first gear 234 is fixedly connected to the lower end face of the first bevel gear 235. The first bevel gear 235 is meshed with the second bevel gear 236. The right side wall of the second bevel gear 236 is fixedly connected to the left side wall of the second gear 237. The second gear 237 is rotatably installed at the rear ends of two groups of first mounting ears 215. Both the second rack 238 and the third rack 239 are meshed with the second gear 237. The second rack 238 is fixedly installed on the front side wall of the upper end of the lower connecting plate 2310. The rear side wall of the lower end of the lower connecting plate 2310 is fixedly connected to the front end face of the lower limiting frame 223. The front side wall of the third rack 239 is fixedly connected to the rear side wall of the lower end of the upper connecting plate 2311. A plurality of groups of threaded holes are equidistantly opened on the upper end of the upper connecting plate 2311. The upper connecting plate 2311 and the rear end of the upper limiting frame 222 are detachably connected by screws. Two groups of mounting seats are fixedly installed on the front side walls of the lower ends of the lower connecting plate 2310 and the upper connecting plate 2311 in an up-and-down arrangement. The lower end faces of the second sliding rod 2312 and the third sliding rod 2313 are fixedly connected to the upper end face of the mounting base plate 212. The second sliding rod 2312 is in limit sliding connection with the mounting seat on the lower connecting plate 2310. The third sliding rod 2313 is in limit sliding connection with the mounting seat on the upper connecting plate 2311.

[0055] The centering component 24 includes a hydraulic cylinder 241, a tapered block 242, a second avoidance groove 243, an assembly plate 244 and an assembly block 245. The hydraulic cylinder 241 is fixedly installed on the upper end surface of the first mounting frame 213. The rear end of the first connecting rod 231 is fixedly installed on the outer side wall of the output end of the hydraulic cylinder 241. The output end of the hydraulic cylinder 241 is fixedly connected to the lower rear end surface of the assembly plate 244. The left end of the tapered block 242 is rotatably installed on the right end surface of the assembly block 245. A second avoidance groove 243 is provided on the right side of the tapered block 242. The tapered block 242 tapers from left to right. Multiple groups of mounting holes are provided on the assembly plate 244. The assembly plate 244 and the assembly block 245 are detachably connected by screws.

[0056] The pipeline fixing component 3 includes a mounting housing 31, a partition plate 32, a rotating component 33, a double-output shaft motor 34, an inner support component 35 and an L-shaped limiting plate 36. The lower end surface of the mounting housing 31 is fixedly connected to the output end of the slewing platform 5. The lower end surface of the slewing platform 5 is fixedly connected to the output end of the scissor lift platform 4. The partition plate 32 is fixedly installed on the left and right inner side walls of the mounting housing 31. The mounting housing 31, the partition plate 32 are connected to the rotating component 33. The mounting housing 31, the rotating component 33, the double-output shaft motor 34, the L-shaped limiting plate 36 are connected to the inner support component 35. A controller 100 is fixedly installed on the right side of the upper end surface of the partition plate 32. Two groups of inner support components 35 are symmetrically arranged on the left and right.

[0057] The rotating component 33 includes a driving motor 331, a third bevel gear 332, a fourth bevel gear 333, a transmission rod 334, a third gear 335 and a fourth gear 336. The driving motor 331 is fixedly installed at the middle position of the upper end surface of the partition plate 32. The output end of the driving motor 331 passes through the partition plate 32. The output end of the driving motor 331 is fixedly connected to the upper end surface of the third bevel gear 332. The third bevel gear 332 is meshed with the fourth bevel gear 333. The fourth bevel gear 333 is fixedly installed in the middle of the outer side wall of the transmission rod 334. The transmission rod 334 is rotatably installed on the left and right inner side walls of the mounting housing 31. Two groups of third gears 335 and fourth gears 336 are arranged side by side. Two groups of third gears 335 are respectively fixedly installed on the outer side walls of the left and right ends of the transmission rod 334. The third gears 335 on both sides are respectively meshed with the fourth gears 336 on both sides. The fourth gear 336 is connected to the inner support component 35.

[0058] The inner support assembly 35 includes a first mounting sleeve 351, a threaded rod 352, a second mounting sleeve 353, a second connecting rod 354, a third connecting rod 355, an inner support plate 356 and a second mounting bracket 357. Two sets of fourth gears 336 are respectively fixedly installed on the outer side walls of the inner ends of the two first mounting sleeves 351. The two first mounting sleeves 351 are respectively rotatably connected to the left and right panels of the mounting housing 31. The outer sides of the two second mounting brackets 357 are respectively fixedly connected to the inner sides of the two fourth gears 336. The inner sides of the two second mounting brackets 357 are respectively detachably connected to the left and right end faces of the double-output shaft motor 34 by screws. The two output ends of the double-output shaft motor 34 are respectively fixedly connected to the inner ends of the threaded rods 352 on both sides. The threaded rods 352 on both sides are respectively rotationally connected to the first mounting sleeves 351 on both sides with limited rotation. The outer ends of the threaded rods 352 on both sides are respectively threadedly connected to the second mounting sleeves 353 on both sides. The inner support plates 356 are arranged in a circumferential array of three groups. The inner sides of each group of inner support plates 356 are respectively hinged to the upper ends of a second connecting rod 354 and two third connecting rods 355. The lower end of the second connecting rod 354 is hinged to the mounting ear at the outer end of the first mounting sleeve 351. The lower end of the third connecting rod 355 is hinged to the mounting ear on the second mounting sleeve 353. A plurality of threaded holes are equally spaced on the outer side of each group of inner support plates 356. A group of L-shaped limiting plates 36 are respectively detachably connected to each group of inner support plates 356 by screws.

[0059] When the present invention is in use, the rear end of the guiding frame 11 is connected to the conveyor belt of the transportation flange ring 9. The conveyor belt starts after the feeding of the flange ring 9 on the frontmost flange ring 9 is completed and stops after the flange ring 9 fills the inner end of the guiding frame 11. Then, the linear module 211 drives the mounting base plate 212. The mounting base plate 212 drives the limiting component 22. The driving rod 226 in the limiting component 22 drives the connecting baffle 146. The connecting baffle 146 drives the first sliding rod 144 to slide on the mounting seats on the front and rear sides at the lower end of the guiding frame 11. The first sliding rod 144 drives the adjusting plate 143. At this time, the first baffle plate 141 and the second baffle plate 142 move synchronously. When the moving platform 21 drives the limiting component 22 to reset to the left, the first baffle plate 141 is moved away by the driving rod 226 to release the frontmost flange ring 9. At the same time, the second baffle plate 142 moves to the front of the next group of flange rings 9 to limit the next group of flange rings 9. Then, the frontmost flange ring 9 rolls from the front end of the guiding frame 11 through the guiding of the upper limiting frame 222 and the lower limiting frame 223 and rolls onto the V-shaped bottom plate 221. When it rolls onto the V-shaped bottom plate 221, it is blocked by the limiting baffle 224 to prevent it from rolling out of the V-shaped bottom plate 221 and causing damage to the equipment.

[0060] Then, the linear module 211 drives the mounting base plate 212 to move to the right. At this time, the driving rod 226 is removed accordingly. Under the action of the spring 145, both the first material baffle 141 and the second material baffle 142 are reset. The second material baffle 142 moves away to release the next group of flange rings 9, which move to the forefront. At this time, the conveyor belt connected to the rear end of the guiding frame 11 starts to convey the flange rings 9 to fill the inner end of the guiding frame 11; the reciprocation of the driving rod 226 realizes the sequential feeding of the flange rings 9. At this time, a set of inner support components 35 in the pipe fixing component 3 feeds the pipe 10, sleeving the pipe 10 outside the inner support plate 356. The inner end cross-section of the pipe 10 is limited by the L-shaped limiting plate 36, ensuring the accuracy of the installation position of each group of pipes 10. Then, the double-output shaft motor 34 drives the threaded rod 352 to rotate. The threaded rod 352 drives the second mounting sleeve 353, and the second mounting sleeve 353 drives the third connecting rod 355 to expand the inner support plate 356 outward to support and fix the inner end of the pipe 10.

[0061] Then, the rotary platform 5 rotates the cross-section outside the pipe 10 to the side where the flange ring 9 is located. Then, the linear module 211 drives the mounting base plate 212 to drive the centering component 24 to move to a position matching the length of the current pipe 10. Then, the hydraulic cylinder 241 drives the assembly plate 244. The assembly plate 244 drives the tapered block 242 through the assembly block 245 to push the flange ring 9 towards the pipe 10. At the same time, the hydraulic cylinder 241 drives the first connecting rod 231. The first connecting rod 231 drives the L-shaped mounting plate 232. The L-shaped mounting plate 232 drives the fourth sliding rod 2314 and the third mounting ear 217 to slide through the two groups of mounting blocks at the lower end. At the same time, the fourth sliding rod 2314 slides with the mounting seat on the inner top surface of the first mounting frame 213 for guiding. Then, the L-shaped mounting plate 232 drives the first rack 233. The first rack 233 drives the first gear 234 to rotate on the second mounting ear 216. The first gear 234 drives the first bevel gear 235. The first bevel gear 235 drives the second bevel gear 236. The second bevel gear 236 drives the second gear 237 to rotate on the first mounting ear 215. The second gear 237 drives the second rack 238 and the third rack 239. The second rack 238 drives the lower connecting plate 2310. The lower connecting plate 2310 drives the lower limiting frame 223 to move downward. The third rack 239 drives the upper connecting plate 2311. The upper connecting plate 2311 drives the upper limiting frame 222 to move upward, thereby removing the limit on the flange ring 9 on the V-shaped bottom plate 221.

[0062] At this time, under the push of the conical block 242, the right side wall of the flange ring 9 fits against the left cross-section of the pipeline 10. Then, under the action of the conical surface of the conical block 242, the flange ring 9 is centered and fits against the pipeline 10. Then, welding is carried out by the laser welding device 6. At this time, the driving motor 331 drives the third bevel gear 332, the third bevel gear 332 drives the fourth bevel gear 333, the fourth bevel gear 333 drives the transmission rod 334, the transmission rod 334 drives the third gear 335, the third gear 335 drives the second mounting bracket 357 and the first mounting sleeve 351 to rotate, the second mounting bracket 357 drives the double-output shaft motor 34 to rotate together, the double-output shaft motor 34 drives the second mounting sleeve 353, the second mounting sleeve 353 and the first mounting sleeve 351 drive the second connecting rod 354 and the third connecting rod 355, and the second connecting rod 354 and the third connecting rod 355 together drive the inner support plate 356, so as to rotate the pipeline 10, so as to weld the flange ring 9 and the pipeline 10 all around. When the pipeline 10 rotates, the flange ring 9 will be closely attached to the pipeline 10 under the push of the conical block 242. Under the action of friction, the conical block 242 will drive the flange ring 9 to rotate synchronously with the pipeline 10. During welding, the conical block 242 supports the inner side of the flange ring 9 to prevent thermal deformation of the flange ring 9;

[0063] In addition, when the laser welding device 6 welds, the visual sensor 7 detects the bubble reflection points on the surface of the molten pool, and the infrared sensor 8 detects the sudden drop in local temperature. Then, the detection information is transmitted to the controller 100. The controller 100 analyzes and cooperates to detect in real time whether there are defects in the welding, and adjusts the angle through the pipeline fixing component 3 for intelligent automatic repair, improving the yield rate. After welding is completed, the conical block 242 moves away, and the rotary platform 5 drives the inner support component 35 of the currently assembled pipeline 10 to rotate, so that the flange sleeve formed by welding the flange ring 9 and the pipeline 10 moves to the rear for blanking. At this time, another group of inner support components 35 is located at the front for loading a new pipeline 10;

[0064] When changing the inner diameter model of the flange ring 9, self - adaptation can be achieved through the tapered block 242; when changing the outer diameter model of the flange ring 9, the position of the second baffle 142 can be adjusted through multiple groups of mounting holes on the rear side of the adjusting plate 143 for adaptation. The installation position of the limit baffle 224 is adjusted through the threaded holes opened on the front panel of the V - shaped bottom plate 221 for adaptation. The height of the upper limit frame 222 is adjusted through multiple groups of threaded holes opened at the upper end of the upper connecting plate 2311 for adaptation. The center of the replaced flange ring 9 will only be adjusted in the vertical direction under the action of the V - shaped bottom plate 221. The tapered block 242 is adapted to the center height of the pipeline 10 by adjusting the assembly position of the assembly block 245 on the assembly plate 244. Through the corresponding adjustment of the scissor - type lifting platform 4, the center of the pipeline 10 can be aligned with the center of the flange ring 9; when changing the inner and outer diameter dimensions of the pipeline 10, the center remains unchanged and no adjustment is required. When changing the length dimension of the pipeline 10, the moving distance of the installation bottom plate 212 is adjusted through the linear module 211 for adaptation, and at the same time, the installation position of the L - shaped limit plate 36 on the inner support plate 356 is adjusted for adaptation, realizing the automatic, efficient, stable and accurate welding of the flange sleeve.

[0065] The above - mentioned is only a preferred embodiment of the present invention and is not used to limit the protection scope of the present invention. The above - mentioned is only an embodiment of the present invention. Therefore, it does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A laser welding device for flange sleeve production, comprising a feeding component (1) for feeding a flange ring (9), characterized in that: A feeding component (1) is connected with a feeding component (2) for fitting the cross-section of a flange ring (9) with a pipeline (10) and centering the flange ring (9). The feeding component (1) and the feeding component (2) can be adapted to flange rings (9) with multiple inner and outer diameter sizes; It further includes a pipeline fixing component (3). The pipeline (10) is fixed by the pipeline fixing component (3), and the pipeline fixing component (3) can adapt to pipelines (10) with different lengths and different inner and outer diameters. The pipeline fixing component (3) is a double-station type, which can load the pipeline (10) on one side and unload the welded flange sleeve on the other side. A rotary platform (5) is installed below the pipeline fixing component (3), and a scissor lift platform (4) is installed below the rotary platform (5). A laser welding device (6) for welding the flange ring (9) and the pipeline (10) is arranged at the upper end position between the feeding component (2) and the pipeline fixing component (3). A vision sensor (7) is fixedly installed on the front side of the laser welding head in the laser welding device (6), and an infrared sensor (8) is fixedly installed on the rear side of the laser welding head in the laser welding device (6); The feeding component (2) includes a moving platform (21), a limiting component (22), a follower component (23) and a centering component (24). The moving platform (21) is connected with the limiting component (22), the follower component (23) and the centering component (24). The limiting component (22) is connected with the feeding component (1) and the follower component (23). The follower component (23) is connected with the centering component (24); The feeding component (1) includes a guiding frame (11), a first support frame (12), a first avoidance groove (13) and a material blocking component (14). The upper end surface of the first support frame (12) is fixedly connected with the lower end surface of the guiding frame (11). A first avoidance groove (13) is formed in the middle position of the guiding frame (11). The material blocking component (14) is connected with the guiding frame (11) and the limiting component (22); The material baffle assembly (14) includes a first material baffle (141), a second material baffle (142), an adjusting plate (143), a first slide bar (144), a spring (145) and a connecting baffle (146). The first material baffle (141) is arranged at the front end of the guiding frame (11). The lower left end of the first material baffle (141) is fixedly connected to the upper front end surface of the connecting baffle (146). The second material baffle (142) is arranged at the middle position of the guiding frame (11). The first avoidance groove (13) is used to avoid the second material baffle (142). Multiple groups of mounting holes are equidistantly arranged at the rear side of the adjusting plate (143). The lower right end of the second material baffle (142) is detachably connected to the adjusting plate (143) by bolts. Two groups of the first slide bars (144) are arranged in the front and rear. One ends of the two groups of the first slide bars (144) are fixedly connected to the left side wall of the adjusting plate (143). The other ends of the two groups of the first slide bars (144) are fixedly connected to the right side wall of the connecting baffle (146). The two groups of the first slide bars (144) are respectively connected with the mounting seats at the front and rear sides of the lower end of the guiding frame (11) in a limiting and sliding manner. Two groups of the springs (145) are arranged in the front and rear and respectively sleeved on the outer sides of the two groups of the first slide bars (144). One end of the spring (145) is fixedly connected to the left side wall of the adjusting plate (143). The other end of the spring (145) is fixedly connected to the right side wall of the connecting baffle (146). The connecting baffle (146) is connected with the limiting component (22). The moving platform (21) includes a linear module (211), a mounting bottom plate (212), a first mounting frame (213), a mounting vertical plate (214), a first mounting ear (215), a second mounting ear (216) and a third mounting ear (217). Two groups of the linear modules (211) are arranged in the front and rear. The lower end surface of the mounting bottom plate (212) is fixedly connected to the upper end surfaces of the sliders on the two groups of the linear modules (211). The first mounting frame (213) and the mounting vertical plate (214) are fixedly mounted on the upper end surface of the mounting bottom plate (212). The mounting bottom plate (212) is connected with the limiting component (22). The first mounting frame (213) is connected with the centering component (24). Two groups of the first mounting ears (215) are arranged in the left and right and are fixedly mounted on the rear end surface of the mounting vertical plate (214). The front end surface of the second mounting ear (216) is fixedly connected to the rear end surface of the mounting vertical plate (214). The front end surface of the third mounting ear (217) is fixedly connected to the rear end surface of the mounting vertical plate (214). The mounting bottom plate (212), the first mounting frame (213), the first mounting ear (215), the second mounting ear (216) and the third mounting ear (217) are connected with the follower component (23). The limiting component (22) includes a V-shaped bottom plate (221), an upper limiting frame (222), a lower limiting frame (223), a limiting baffle (224), a second support frame (225) and a driving rod (226). The bottom surface of the V-shaped bottom plate (221) is fixedly connected to the upper end surface of the second support frame (225). The second support frame (225) is fixedly installed on the upper end surface of the installation bottom plate (212). The rear end of the V-shaped bottom plate (221) is arranged inside the inner end of the lower limiting frame (223), and the width of the V-shaped bottom plate (221) is less than the distance between the two inner side walls of the lower limiting frame (223). Multiple groups of threaded holes are equally spaced on the front panel of the V-shaped bottom plate (221). The lower end of the limiting baffle (224) is sleeved on the front side panel of the V-shaped bottom plate (221) and is detachably connected to the V-shaped bottom plate (221) by screws. The upper end of the limiting baffle (224) is in contact connection with the outer side wall of the flange ring (9). The front end surface of the driving rod (226) is fixedly connected to the rear end surface of the second support frame (225). The left side wall of the rear end of the driving rod (226) is in contact connection with the right side wall of the front end of the connection baffle (146). The upper limiting frame (222) and the lower limiting frame (223) are connected to the follow-up component (23); The follow-up component (23) includes a first connecting rod (231), an L-shaped mounting plate (232), a first rack (233), a first gear (234), a first bevel gear (235), a second bevel gear (236), a second gear (237), a second rack (238), a third rack (239), a lower connecting plate (2310), an upper connecting plate (2311), a second sliding rod (2312), a third sliding rod (2313) and a fourth sliding rod (2314). The rear end of the first connecting rod (231) is connected to the centering component (24), and the right side wall of the front end of the first connecting rod (231) is fixedly connected to the left side wall of the L-shaped mounting plate (232). The rear end face of the first rack (233) is fixedly connected to the front side face of the vertical panel of the L-shaped mounting plate (232). Two groups of mounting blocks are respectively fixedly installed at both ends of the lower end face of the L-shaped mounting plate (232), and the mounting blocks are fixedly connected to the outer side wall of the fourth sliding rod (2314). The left end of the fourth sliding rod (2314) is in limiting sliding connection with the mounting seat on the inner top surface of the first mounting frame (213), and the fourth sliding rod (2314) is in limiting sliding connection with the third mounting ear (217). The first rack (233) is meshed and connected with the first gear (234). The first gear (234) is rotatably installed at the rear end of the second mounting ear (216). The upper end face of the first gear (234) is fixedly connected to the lower end face of the first bevel gear (235). The first bevel gear (235) is meshed and connected with the second bevel gear (236). The right side wall of the second bevel gear (236) is fixedly connected to the left side wall of the second gear (237). The second gear (237) is rotatably installed at the rear ends of two groups of first mounting ears (215). The second rack (238) and the third rack (239) are both meshed and connected with the second gear (237). The second rack (238) is fixedly installed on the front side wall of the upper end of the lower connecting plate (2310). The rear side wall of the lower end of the lower connecting plate (2310) is fixedly connected to the front end face of the lower limiting frame (223). The front side wall of the third rack (239) is fixedly connected to the rear side wall of the lower end of the upper connecting plate (2311). A plurality of groups of threaded holes are equidistantly arranged on the upper end of the upper connecting plate (2311). The upper connecting plate (2311) and the rear end of the upper limiting frame (222) are detachably connected by screws. Two groups of mounting seats are respectively fixedly installed on the front side walls of the lower ends of the lower connecting plate (2310) and the upper connecting plate (2311) in an up-and-down arrangement. The lower end faces of the second sliding rod (2312) and the third sliding rod (2313) are both fixedly connected to the upper end face of the mounting base plate (212). The second sliding rod (2312) is in limiting sliding connection with the mounting seat on the lower connecting plate (2310), and the third sliding rod (2313) is in limiting sliding connection with the mounting seat on the upper connecting plate (2311); The centering component (24) includes a hydraulic cylinder (241), a tapered block (242), a second avoidance groove (243), an assembly plate (244) and an assembly block (245). The hydraulic cylinder (241) is fixedly installed on the upper end surface of the first mounting bracket (213). The rear end of the first connecting rod (231) is fixedly installed on the outer side wall of the output end of the hydraulic cylinder (241). The output end of the hydraulic cylinder (241) is fixedly connected to the lower rear end surface of the assembly plate (244). The left end of the tapered block (242) is rotatably installed on the right end surface of the assembly block (245). A second avoidance groove (243) is formed on the right side of the tapered block (242). The tapered block (242) tapers from left to right. Multiple groups of mounting holes are formed in the assembly plate (244). The assembly plate (244) and the assembly block (245) are detachably connected by screws.

2. The laser welding device for flange bushing production according to claim 1, wherein, The pipeline fixing component (3) includes an installation housing (31), a partition plate (32), a rotating component (33), a double-output shaft motor (34), an inner support component (35) and an L-shaped limiting plate (36). The lower end surface of the installation housing (31) is fixedly connected to the output end of the slewing platform (5). The lower end surface of the slewing platform (5) is fixedly connected to the output end of the scissor lift platform (4). The partition plate (32) is fixedly installed on the left and right inner side walls of the installation housing (31). The installation housing (31), the partition plate (32) are connected to the rotating component (33). The installation housing (31), the rotating component (33), the double-output shaft motor (34), the L-shaped limiting plate (36) are connected to the inner support component (35). A controller (100) is fixedly installed on the right side of the upper end surface of the partition plate (32). Two groups of the inner support components (35) are symmetrically arranged on the left and right.

3. The laser welding device for flange bushing production according to claim 2, characterized in that, The rotating component (33) includes a driving motor (331), a third bevel gear (332), a fourth bevel gear (333), a transmission rod (334), a third gear (335) and a fourth gear (336). The driving motor (331) is fixedly installed at the middle position of the upper end surface of the partition plate (32). The output end of the driving motor (331) passes through the partition plate (32). The output end of the driving motor (331) is fixedly connected to the upper end surface of the third bevel gear (332). The third bevel gear (332) is meshed and connected with the fourth bevel gear (333). The fourth bevel gear (333) is fixedly installed at the middle of the outer side wall of the transmission rod (334). The transmission rod (334) is rotatably installed on the left and right inner side walls of the installation housing (31). Two groups of the third gears (335) and the fourth gears (336) are arranged side by side on the left and right. The two groups of the third gears (335) are respectively fixedly installed on the outer side walls of the left and right ends of the transmission rod (334). The third gears (335) on both sides are respectively meshed and connected with the fourth gears (336) on both sides. The fourth gear (336) is connected to the inner support component (35).

4. The laser welding device for flange sleeve production according to claim 3, characterized in that, The inner support assembly (35) includes a first mounting sleeve (351), a threaded rod (352), a second mounting sleeve (353), a second connecting rod (354), a third connecting rod (355), an inner support plate (356) and a second mounting bracket (357). Two sets of the fourth gears (336) are respectively fixedly installed on the outer side walls of the inner ends of the two sets of first mounting sleeves (351). The two sets of first mounting sleeves (351) are respectively rotatably connected to the left and right panels of the mounting housing (31). The outer sides of the two sets of second mounting brackets (357) are respectively fixedly connected to the inner sides of the two sets of fourth gears (336). The inner sides of the two sets of second mounting brackets (357) are respectively detachably connected to the left and right end faces of the double-output shaft motor (34) by screws. The two output ends of the double-output shaft motor (34) are respectively fixedly connected to the inner ends of the threaded rods (352) on both sides. The threaded rods (352) on both sides are respectively in limit rotational connection with the first mounting sleeves (351) on both sides. The outer ends of the threaded rods (352) on both sides are respectively in threaded connection with the second mounting sleeves (353) on both sides. The inner support plates (356) are arranged in a circumferential array of three groups. The inner sides of each group of inner support plates (356) are respectively hinged to the upper ends of a second connecting rod (354) and two third connecting rods (355). The lower end of the second connecting rod (354) is hinged to the mounting ear at the outer end of the first mounting sleeve (351). The lower end of the third connecting rod (355) is hinged to the mounting ear on the second mounting sleeve (353). A plurality of threaded holes are evenly spaced on the outer sides of each group of inner support plates (356). A group of L-shaped limiting plates (36) are respectively detachably connected to each group of inner support plates (356) by screws.

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