Laser welding device for flange sleeve production

Abstract

The invention discloses a laser welding device for flange sleeve production, and belongs to the technical field of laser welding, the laser welding device comprises a feeding assembly for feeding a flange ring, the feeding assembly is connected with a feeding assembly for attaching the flange ring to the section of a pipeline and centering the flange ring, and the feeding assembly and the feeding assembly are connected with the feeding assembly. And the flange ring with multiple inner and outer diameters can be adapted. In this way, the movable platform drives the limiting assembly to be matched with the feeding assembly to achieve sequential feeding of flange rings, and the flange ring feeding device can adapt to flange rings with different inner and outer diameters and pipelines with different inner and outer diameters and different lengths; feeding of the pipeline and discharging of the welded flange sleeve can be conducted at the same time through the rotary platform, the production efficiency is improved, real-time detection is conducted through a visual sensor and an infrared sensor during welding, and then welding defects can be intelligently detected in real time and intelligent automatic repairing can be conducted through analysis and cooperation of a controller; and the yield and the production efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, and in particular to a laser welding device used for flange sleeve production. Background Art

[0002] In the field of modern industrial manufacturing, flanges and sleeves are key components for connecting various pipeline systems and are widely used in many industries such as petroleum, chemical, electric power, and construction. Their quality is directly related to the sealing, stability, and safety of the entire pipeline system. Welding, as the core process in the production of flanges and 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 high-energy-density laser beam as a heat source to quickly melt the weldment locally and achieve material connection.

[0004] Most of the existing flange sleeves rely on manual welding, and the flanges are usually loaded manually, which is inefficient and prone to human errors, making it difficult to achieve continuous and stable loading.

[0005] Some semi-automatic welding devices are usually designed for flange rings and pipes of specific sizes. They are difficult to adapt to flange rings and pipes of different inner and outer diameters and lack flexible size adaptation capabilities. When faced with the production of products of various specifications, they need to frequently replace corresponding workpieces or perform complex manual adjustments, which seriously affects production efficiency.

[0006] In existing production, the process of loading pipes and unloading flange sleeves after welding is often carried out independently. The equipment is idle during loading or unloading, wasting a lot of time and affecting production efficiency. At the same time, in existing flange sleeve welding production, most of them rely on manual visual observation or simple physical measurement to detect welding defects, and cannot detect welding problems in real time and accurately. When welding defects are found, the defective flange sleeves have been offline, and manual intervention is often required for repair. Not only is the efficiency low, but the repair effect depends on the worker's experience and skill level.

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

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

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

[0010] A laser welding device for flange sleeve production includes a feeding assembly for feeding a flange ring, the feeding assembly is connected to the feeding assembly for fitting the flange ring with the cross section of a pipe and centering the flange ring, the feeding assembly and the feeding assembly can be adapted to flange rings of multiple inner and outer diameters;

[0011] It also includes a pipe fixing assembly, the pipe is fixed by the pipe fixing assembly, and the pipe fixing assembly can adapt to pipes of different lengths and different inner and outer diameters. The pipe fixing assembly is a double-station assembly, and can be used to unload the welded flange sleeve while installing the pipe. A rotating platform is installed below the pipe fixing assembly, and a scissor-type lifting platform is installed below the rotating platform. A laser welding device for welding the flange ring and the pipe is arranged at the upper end between the feeding assembly and the pipe fixing assembly. A visual sensor is fixedly installed on the front side of the laser welding head in the laser welding equipment, and an infrared sensor is fixedly installed on the rear side of the laser welding head in the laser welding equipment.

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

[0013] Through the above technical scheme, the flange ring is loaded by driving the limiting component and the feeding component through the mobile platform, the flange ring after loading is limited and initially fixed by the limiting component, the feeding component and the limiting component can be adjusted to adapt to flange rings with different inner and outer diameters, the pipeline fixing component can fix pipelines with different inner and outer diameters and different lengths and can drive the pipeline to rotate, the centering component can cooperate with the fixed pipeline to center flange rings with different inner and outer diameters and make the flange ring fit the cross section of the pipeline, the mobile platform drives the centering component to adjust the position of the centering component according to the length of the pipeline, and the adaptability is higher, and the pipeline fixing component is driven by the rotating platform The rotation of the parts can make the loading of the pipe and the unloading of the welded flange sleeve simultaneous, which improves the production efficiency. During welding, the visual sensor detects the reflective points of bubbles on the surface of the molten pool and the infrared sensor detects the local temperature drop. Then, the controller analyzes and cooperates to detect welding defects in real time and adjust the angle of the pipeline fixing component to perform intelligent automatic repair, which improves the yield rate, realizes the adaptation, centering and welding of flange sleeves of different sizes, and realizes real-time intelligent detection and repair. The laser welding equipment consists of a two-dimensional mobile platform, a robotic arm and a laser welding head, which are all existing mature technologies. The laser welding equipment is fixedly installed at the upper end between the feeding component and the pipeline fixing component through a frame.

[0014] Furthermore, the loading assembly includes a guide frame, a first support frame, a first avoidance groove, and a material blocking assembly. The upper end surface of the first support frame is fixedly connected to the lower end surface of the guide frame, a first avoidance groove is provided in the middle position of the guide frame, and the material blocking assembly is connected to the guide frame and the limiting assembly.

[0015] Through the above technical solution, the rear end of the guide frame is connected to the conveyor belt for transporting the flange ring, and the conveyor belt is started after the front end flange ring is loaded, and stops after the flange ring fills the guide frame.

[0016] The locking plate is configured to lock the locking plate, wherein the locking plate has a first end fixedly mounted on the left side of the locking plate and a second end of the locking plate, wherein the locking plate is configured to lock the locking plate.

[0017] The first stop plate is moved away from the support frame and the second stop plate is moved to the front end of the support frame, and the second stop plate is moved to the front end of the support frame, so that the first stop plate is moved away from the support frame and the second stop plate is moved to the front end of the support frame.

[0018] Furthermore, the movable platform includes a linear module, a mounting base plate, a first mounting frame, a mounting vertical plate, a first mounting ear, a second mounting ear and a third mounting ear. The linear module is arranged in two groups front to back, the lower end surface of the mounting base plate is fixedly connected to the upper end surfaces of the upper slide blocks of the two groups of linear modules, the first mounting frame 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 assembly, the first mounting frame is connected to the centering assembly, the first mounting ears are arranged in two groups left to 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 frame, the first mounting ear, the second mounting ear and the third mounting ear are connected to the follower assembly.

[0019] Through the above technical solution, the linear module drives the installation base plate to move, and the movement distance of the centering component driven by the installation base plate is adjusted to adapt to pipes of different lengths.

[0020] Furthermore, the limit assembly includes a V-shaped base plate, an upper limit frame, a lower limit frame, a limit 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 on the inner end of the lower limit frame and the width of the V-shaped base plate is smaller than the distance between the two inner side walls of the lower limit frame, and a plurality of groups of threaded holes are equally spaced on the panel at the front end of the V-shaped base plate, the lower end of the limit 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 limit baffle is in contact 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 rear end left side wall of the driving rod is in contact with the front end right side wall of the connecting baffle, and the upper limit frame, the lower limit frame and the follower assembly are connected.

[0021] Through the above technical scheme, the center of the circle of flange rings with different inner and outer diameters can be placed at the same vertical height through the V-shaped bottom plate to achieve preliminary positioning. When replacing flange rings with different inner and outer diameters, it is only necessary to lift the height of the pipeline fixing assembly through the scissors-type lifting platform to align the pipeline with the center of the circle of the replaced flange ring. The center of the circle can be quickly aligned to reduce the downtime of the changeover, and then the flange ring that rolls in is blocked and limited by the limit baffle to prevent damage to the equipment. Multiple groups of threaded holes are provided between the panels on the front side of the V-shaped bottom plate to enable the limit baffle to adjust the installation position, so as to achieve blocking and limiting of flange rings with different inner and outer diameters. The upper limit frame and the lower limit frame cooperate to guide the flange ring while limiting it. The rear sides of the upper limit frame and the lower limit frame are gradually opened from front to back, which is convenient for the flange ring to roll in, and the connecting baffle is driven by the drive rod to realize loading.

[0022] The rear end of the first connecting rod is connected to the centering assembly, and the front right side wall of the first connecting rod is fixedly connected to the left side wall of the L-shaped mounting plate, and 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, and two sets of mounting blocks are respectively fixedly installed at both ends of the lower end face of the L-shaped mounting plate, and the mounting block is fixedly connected to the outer side wall of the fourth sliding bar, and the left end of the fourth sliding bar is limitedly slidably connected to the mounting seat on the inner top surface of the first mounting frame, and the fourth sliding bar is limitedly slidably connected to the third mounting ear, and the first rack is meshed with the first gear, and the first gear is rotatably mounted on the rear end of the second mounting ear, and the upper end face of the first gear is fixedly connected to the lower end face of the first bevel gear, and the first The second gear is meshed with the third gear of the second gear, and the third gear is meshed with the third gear of the second gear.

[0023] Through the above technical scheme, by following the movement of the follow-up component and the centering component, the follow-up component can move the upper limit frame and the lower limit frame apart when the flange ring is pushed toward the pipeline to release the limit of the flange ring. The multiple groups of threaded holes evenly spaced at the upper end of the upper connecting plate can adjust the height of the upper limit frame to adapt to flange rings with different outer diameters. The second slide bar is connected to the mounting seat on the lower connecting plate in a limiting sliding manner, and the third slide bar is connected to the mounting seat on the upper connecting plate in a limiting sliding manner for guiding.

[0024] Furthermore, the centering assembly includes a hydraulic cylinder, a conical block, a second avoidance groove, an assembly plate and an assembly block. The hydraulic cylinder is fixedly mounted on the upper end surface of the first mounting frame, the rear end of the first connecting rod is fixedly mounted 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 conical block is rotatably mounted on the right end surface of the assembly block, a second avoidance groove is provided on the right side of the conical block, the conical block narrows from the left side to the right side, a plurality of groups of mounting holes are provided on the assembly plate, and the assembly plate and the assembly block are detachably connected by screws.

[0025] Through the above technical scheme, the hydraulic cylinder drives the assembly plate, and the assembly plate drives the conical block through the assembly block to push the flange ring toward the pipeline, and the flange ring is centered by the conical surface of the conical block, so that the flange ring can be fitted with the cross section of the pipeline, and the inner end of the flange ring can be supported to prevent the flange ring from deforming when the flange ring and the pipeline are welded by the laser welding equipment. The pipeline fixing component is avoided through the second avoidance groove, so that the front end of the conical block will not conflict with the pipeline fixing component, and when the inner and outer diameter size models of the flange ring are replaced, the assembly position of the assembly block on the assembly plate is adjusted to adapt.

[0026] Furthermore, the pipe fixing assembly includes an installation shell, a partition, a rotating assembly, a double-output shaft motor, an internal support assembly and an L-shaped limit plate. The lower end surface of the installation shell is fixedly connected to the output end of the rotating platform, and the lower end surface of the rotating platform is fixedly connected to the output end of the scissors-type lifting platform. The partition is fixedly installed on the left and right inner walls of the installation shell. The installation shell and the partition are connected to the rotating assembly. The installation shell, the rotating assembly, the double-output shaft motor, the L-shaped limit plate are connected to the internal support assembly. A controller is fixedly installed on the right side of the upper end surface of the partition, and two groups of internal support assemblies are symmetrically arranged on the left and right.

[0027] Through the above technical solution, the visual sensor and infrared sensor transmit the detection information to the controller, which analyzes and collaboratively detects in real time whether the welding is defective. The controller controls the pipeline fixing component to adjust the angle and the laser welding equipment to repair it, thereby realizing intelligent real-time detection and intelligent repair.

[0028] Furthermore, 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 mounted on the middle position of the upper end surface of the partition, and the output end of the driving motor passes through the partition. The output end of the driving motor is fixedly connected to the upper end surface of the third bevel gear, and the third bevel gear is meshingly connected to the fourth bevel gear. The fourth bevel gear is fixedly mounted on the middle part of the outer wall of the transmission rod, and the transmission rod is rotatably mounted on the left and right inner walls of the mounting shell. The third gear and the fourth gear are arranged in two groups on the left and right, and the two groups of third gears are respectively fixedly mounted on the outer walls at the left and right ends of the transmission rod. The third gears on both sides are respectively meshingly connected with the fourth gears on both sides, and the fourth gear is connected to the inner support assembly.

[0029] Through the above technical solution, the rotating component can drive the inner support component to rotate, and the conical block and the assembly block are rotating, that is, the inner support component drives the pipeline to rotate and at the same time drives the flange ring on the conical block to rotate synchronously without the need for additional rotating equipment. The flange ring and the pipeline are welded into shape once by laser welding equipment.

[0030] Furthermore, 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 groups of the fourth gears are respectively fixedly mounted on the outer side walls of the inner ends of the two groups of the first mounting sleeves. The two groups of the first mounting sleeves are respectively rotatably connected to the left and right panels of the mounting shell. The outer side surfaces of the two groups of the second mounting brackets are respectively fixedly connected to the inner side surfaces of the two groups of the fourth gears. The inner sides of the two groups of the second mounting brackets are respectively detachably connected to the left and right end surfaces of the double-output shaft motor by screws. The two groups of output ends of the double-output shaft motor are respectively connected to the inner ends of the threaded rods on both sides. The screw rods are fixedly connected, and the threaded rods on both sides are respectively connected to the first mounting sleeves on both sides for limiting 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 three groups in a circular array. 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 ends of the second connecting rods are hinged to the mounting ears at the outer ends of the first mounting sleeves, and the lower ends of the third connecting rods are hinged to the mounting ears on the second mounting sleeves. A plurality of threaded holes are evenly spaced on the outer sides of each group of inner support plates, and each group of inner support plates is detachably connected to a group of L-shaped limiting plates by screws.

[0031] Through the above technical solution, pipes with different inner and outer diameters can be supported, fixed and centered by the internal support assembly, and the L-shaped limit plate can be provided to facilitate positioning of the pipe during installation. When positioning of pipes of different lengths is required, the installation position of the L-shaped limit plate can be adjusted.

[0032] The beneficial effects of the present invention are as follows: (1) The present invention drives the limit assembly and the feeding assembly to realize the sequential feeding of the flange ring through the mobile platform; (2) The feeding assembly and the limit assembly can adapt to flange rings with different inner and outer diameters, and the pipe fixing assembly can fix pipes with different inner and outer diameters and different lengths and drive the pipe to rotate. The centering assembly cooperates with the fixed pipe to center the flange rings with different inner and outer diameters and make the flange ring fit the cross section of the pipe. The mobile platform drives the centering assembly to adjust the position of the centering assembly according to the length of the pipe to adapt; (3) The pipe fixing assembly is driven to rotate by the rotating platform, so that the feeding of the pipe and the unloading of the welded flange sleeve can be carried out simultaneously, thereby improving the production efficiency; (4) During welding, the bubble reflective points on the surface of the molten pool are detected by the visual sensor, and the local temperature drop is detected by the infrared sensor. Then, the welding defects can be intelligently detected in real time through the analysis and coordination of the controller, and the angle can be adjusted by the pipe fixing assembly to perform intelligent and automatic repair, thereby improving the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0036] Figure 4 For along Figure 3 AA direction cross-sectional view;

[0037] Figure 5 It is a schematic diagram of a loading component and a feeding component;

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

[0039] Figure 7 Schematic diagram of the feeding component Figure 1 ;

[0040] Figure 8 Schematic diagram of the feeding component Figure 2 ;

[0041] Fig. 9 It is a cross-sectional view of the pipeline fixing assembly;

[0042] Fig.10 for Figure 7 Enlarged view of point B in the middle.

[0043] Reference numerals:

[0044] 1. Loading assembly; 11. Guide frame; 12. First support frame; 13. First avoidance groove; 14. Stop assembly; 141. First stop plate; 142. Second stop plate; 143. Adjustment plate; 144. First slide bar; 145. Spring; 146. Connecting stop plate; 2. Feeding assembly; 21. Moving platform; 211. Linear module; 212. Mounting base plate; 213. First mounting frame; 214. Mounting vertical plate; 215. First mounting ear; 216. Second mounting ear; 21 7. Third mounting ear; 22. Limiting assembly; 221. V-shaped bottom plate; 222. Upper limiting frame; 223. Lower limiting frame; 224. Limiting baffle; 225. Second supporting frame; 226. Driving rod; 23. Follower assembly; 231. First connecting rod; 232. L-shaped mounting 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 slide bar; 2313, third slide bar; 2314, fourth slide bar; 24, centering assembly; 241, hydraulic cylinder; 242, conical block; 243, second avoidance groove; 244, assembly plate; 245, assembly block; 3, pipeline fixing assembly; 31, mounting housing; 32, partition; 33, rotating assembly; 331, driving motor; 332, third bevel gear; 333, fourth bevel gear; 334, transmission rod; 335, The third gear; 336, the fourth gear; 34, the double-output shaft motor; 35, the inner support assembly; 351, the first mounting sleeve; 352, the threaded rod; 353, the second mounting sleeve; 354, the second connecting rod; 355, the third connecting rod; 356, the inner support plate; 357, the second mounting bracket; 36, the L-shaped limit plate; 4, the scissor-type lifting platform; 5, the rotating platform; 6, the laser welding equipment; 7, the visual sensor; 8, the infrared sensor; 9, the flange ring; 10, the pipeline; 100, the controller. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0046] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0047] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 10A laser welding device for flange sleeve production includes a feeding assembly 1 for feeding a flange ring 9, a feeding assembly 2 for fitting the flange ring 9 with a cross section of a pipe 10 and centering the flange ring 9 is connected to the feeding assembly 1, and the feeding assembly 1 and the feeding assembly 2 can be adapted to flange rings 9 of multiple inner and outer diameters;

[0048] It also includes a pipe fixing component 3, through which the pipe 10 is fixed, and the pipe fixing component 3 can adapt to pipes 10 of different lengths and different inner and outer diameters. The pipe fixing component 3 is a double-station component, and can install the pipe 10 while unloading the welded flange sleeve. A rotating platform 5 is installed below the pipe fixing component 3, and a scissor-type lifting platform 4 is installed below the rotating platform 5. A laser welding device 6 for welding the flange ring 9 and the pipe 10 is arranged at the upper end between the feeding component 2 and the pipe fixing component 3. A visual 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 loading assembly 1 includes a guide frame 11, a first support frame 12, a first avoidance groove 13, and a material blocking assembly 14. The upper end surface of the first support frame 12 is fixedly connected to the lower end surface of the guide frame 11. The first avoidance groove 13 is opened in the middle position of the guide frame 11. The material blocking assembly 14 is connected to the guide frame 11 and the limit assembly 22.

[0050] The material blocking assembly 14 includes a first material blocking plate 141, a second material blocking plate 142, an adjusting plate 143, a first slide bar 144, a spring 145 and a connecting baffle 146. The first material blocking plate 141 is arranged at the front end of the guide frame 11, the left lower end of the first material blocking plate 141 is fixedly connected to the front upper end surface of the connecting baffle 146, the second material blocking plate 142 is arranged in the middle position of the guide frame 11, the first avoidance groove 13 is used to avoid the second material blocking plate 142, and a plurality of mounting holes are evenly spaced on the rear side of the adjusting plate 143. The right lower end of the second material blocking plate 142 is detachably connected to the adjusting plate 143 by bolts. Two groups of first slide bars 144 are arranged front and back, one end of the two groups of first slide bars 144 is fixedly connected to the left side wall of the adjustment plate 143, the other end of the two groups of first slide bars 144 is fixedly connected to the right side wall of the connecting baffle 146, the two groups of first slide bars 144 are respectively connected to the mounting seats at the front and rear sides of the lower end of the guide frame 11 for limited sliding, the springs 145 are arranged front and back, and two groups of springs 145 are respectively sleeved on the outside of the two groups of first slide bars 144, one end of the springs 145 is fixedly connected to the left side wall of the adjustment plate 143, the other end of the springs 145 is fixedly connected to the right side wall of the connecting baffle 146, and the connecting baffle 146 is connected to the limiting assembly 22.

[0051] The feeding assembly 2 includes a mobile platform 21, a limiting assembly 22, a following assembly 23 and a centering assembly 24. The mobile platform 21 is connected to the limiting assembly 22, the following assembly 23 and the centering assembly 24. The limiting assembly 22 is connected to the feeding assembly 1 and the following assembly 23. The following assembly 23 is connected to the centering assembly 24.

[0052] The mobile platform 21 includes a linear module 211, a mounting base 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. The linear module 211 is arranged in two groups in a front-to-back arrangement. The lower end surface of the mounting base 212 is fixedly connected to the upper end surfaces 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 surface of the mounting base 212. The mounting base 212 is connected to the limit assembly 22. Then, the first mounting frame 213 is connected to the centering assembly 24, two groups of first mounting ears 215 are arranged in left and right arrangements and are fixedly mounted 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, and 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 follower assembly 23.

[0053] The limiting assembly 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 mounted on the upper end surface of the mounting bottom plate 212. The rear end of the V-shaped bottom plate 221 is arranged at the inner end of the lower limiting frame 223 and the width of the V-shaped bottom plate 221 is smaller than the distance between the two inner side walls of the lower limiting frame 223. The front of the V-shaped bottom plate 221 is fixedly connected to the upper end surface of the second support frame 225. A plurality of groups of threaded holes are provided on the panel at the end, the lower end of the limit 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 limit baffle 224 is in contact with the outer 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 rear end left side wall of the driving rod 226 is in contact with the front end right side wall of the connecting baffle 146, the upper limit frame 222 and the lower limit frame 223 are connected to the follower assembly 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 slide bar 2312, a third slide bar 2313 and a fourth slide bar 2314. The rear end of the first connecting rod 231 is connected to the centering assembly 24, the front right side wall of the first connecting rod 231 is fixedly connected to the left side wall of the L-shaped mounting plate 232, and the rear end face of the first rack 233 is fixed to the L-shaped mounting plate 232. The L-shaped mounting plate 232 is fixedly connected to the front side of the vertical panel, and two sets of mounting blocks are fixedly installed at both ends of the lower end surface of the L-shaped mounting plate 232, and the mounting blocks are fixedly connected to the outer wall of the fourth slide bar 2314. The left end of the fourth slide bar 2314 is limitedly slidably connected to the mounting seat on the inner top surface of the first mounting frame 213, and the fourth slide bar 2314 is limitedly slidably connected to the third mounting ear 217. The first rack 233 is meshed with the first gear 234, and the first gear 234 is rotatably installed on the rear end of the second mounting ear 216. The upper end surface of the first gear 234 is connected to the lower end surface 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 mounted on the rear ends of the two sets of first mounting ears 215, the second rack 238 and the third rack 239 are both meshed with the second gear 237, the second rack 238 is fixedly mounted on the upper front side wall of the lower connecting plate 2310, the lower rear side wall of the lower connecting plate 2310 is fixedly connected to the front end surface of the lower limit frame 223, the front side wall of the third rack 239 is fixedly connected to the lower rear side of the upper connecting plate 2311 The upper connecting plate 2311 is fixedly connected to the wall, and a plurality of threaded holes are arranged at equal intervals on the upper end of the upper connecting plate 2311. The upper connecting plate 2311 is detachably connected to the rear end of the upper limit frame 222 by screws. Two groups of mounting seats are arranged and fixedly installed on the front side walls of the lower ends of the lower connecting plate 2310 and the upper connecting plate 2311, respectively. The lower end surfaces of the second sliding bar 2312 and the third sliding bar 2313 are fixedly connected to the upper end surface of the mounting base plate 212. The second sliding bar 2312 is limitedly slidably connected to the mounting seat on the lower connecting plate 2310, and the third sliding bar 2313 is limitedly slidably connected to the mounting seat on the upper connecting plate 2311.

[0055] The centering component 24 includes a hydraulic cylinder 241, a conical block 242, a second avoidance groove 243, an assembly plate 244 and an assembly block 245. The hydraulic cylinder 241 is fixedly mounted on the upper end surface of the first mounting frame 213, and the rear end of the first connecting rod 231 is fixedly mounted 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 rear end surface of the lower end of the assembly plate 244. The left end of the conical block 242 is rotatably mounted on the right end surface of the assembly block 245. A second avoidance groove 243 is provided on the right side of the conical block 242. The conical block 242 is narrowed from the left side to the right side. A plurality 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 an installation shell 31, a partition 32, a rotating component 33, a double-output shaft motor 34, an internal support component 35 and an L-shaped limit plate 36. The lower end surface of the installation shell 31 is fixedly connected to the output end of the rotating platform 5, and the lower end surface of the rotating platform 5 is fixedly connected to the output end of the scissors-type lifting platform 4. The partition 32 is fixedly installed on the left and right inner walls of the installation shell 31. The installation shell 31 and the partition 32 are connected to the rotating component 33. The installation shell 31, the rotating component 33, the double-output shaft motor 34, the L-shaped limit plate 36 are connected to the internal support component 35. The controller 100 is fixedly installed on the right side of the upper end surface of the partition 32, and two groups of internal support components 35 are symmetrically arranged on the left and right.

[0057] The rotating assembly 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 mounted at the middle position of the upper end surface of the partition 32. The output end of the driving motor 331 passes through the partition 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 mounted on the middle part of the outer wall of the transmission rod 334. The transmission rod 334 is rotatably mounted on the left and right inner walls of the mounting shell 31. The third gear 335 and the fourth gear 336 are arranged in two groups on the left and right sides. The two groups of third gears 335 are respectively fixedly mounted on the outer walls at 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 assembly 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. The two groups of fourth gears 336 are respectively fixedly mounted on the outer side walls of the inner ends of the two groups of first mounting sleeves 351. The two groups of first mounting sleeves 351 are respectively rotatably connected to the left and right panels of the mounting shell 31. The outer side surfaces of the two groups of second mounting brackets 357 are respectively fixedly connected to the inner side surfaces of the two groups of fourth gears 336. The inner sides of the two groups of second mounting brackets 357 are respectively detachably connected to the left and right end surfaces of the double-output shaft motor 34 by screws. The two groups of output ends of the double-output shaft motor 34 are respectively fixed to the inner ends of the threaded rods 352 on both sides. The threaded rods 352 on both sides are respectively connected to the first mounting sleeves 351 on both sides for limited rotation, and the outer ends of the threaded rods 352 on both sides are respectively threadedly connected to the second mounting sleeves 353 on both sides, and three groups of inner support plates 356 are arranged in a circular array, and the inner sides of each group of inner support plates 356 are respectively hinged to the upper ends of a group of second connecting rods 354 and two groups of third connecting rods 355, the lower ends of the second connecting rods 354 are hinged to the mounting ears at the outer ends of the first mounting sleeves 351, and the lower ends of the third connecting rods 355 are hinged to the mounting ears on the second mounting sleeves 353, and a plurality of groups of threaded holes are evenly spaced on the outer sides of each group of inner support plates 356, and each group of inner support plates 356 is detachably connected to a group of L-shaped limiting plates 36 by screws.

[0059] When the present invention is used, the rear end of the guide frame 11 is connected to the conveyor belt of the transport flange ring 9. The conveyor belt starts after the front end flange ring 9 is loaded, and stops after the flange ring 9 fills the inner end of the guide frame 11. Then the linear module 211 drives the installation base plate 212, and the installation base plate 212 drives the limit assembly 22. The driving rod 226 in the limit assembly 22 drives the connecting baffle 146. The connecting baffle 146 drives the first slide bar 144 to slide on the mounting seats on the front and rear sides of the lower end of the guide frame 11. The first slide bar 144 drives the adjusting plate 143. At this time, the first baffle plate 141 and the second baffle plate 14 2 synchronously moves, when the moving platform 21 drives the limiting assembly 22 to reset to the left, the first material stopper 141 is moved away by the driving rod 226 to release the front end flange ring 9, and the second material stopper 142 moves to the front end of the next group of flange rings 9 to limit the next group of flange rings 9, and then the front end flange ring 9 rolls down from the front end of the guide frame 11 to the V-shaped bottom plate 221 under the guidance of the upper limiting frame 222 and the lower limiting frame 223, and is blocked by the limiting stopper 224 when rolling onto the V-shaped bottom plate 221 to prevent 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 which time the driving rod 226 moves away, and under the action of the spring 145, the first baffle plate 141 and the second baffle plate 142 are both reset, and the second baffle plate 142 moves away to release the next set of flange rings 9 and move to the front end. At this time, the conveyor belt connected to the rear end of the guide frame 11 starts to convey the flange ring 9 to fill the inner end of the guide frame 11; the flange ring 9 is loaded in sequence through the reciprocating movement of the driving rod 226. At this time, the pipeline fixing group A group of inner support components 35 in the component 3 is used to load the pipe 10, and the pipe 10 is sleeved on the outer side of the inner support plate 356. The inner end section of the pipe 10 is limited by the L-shaped limit plate 36 to ensure the installation position accuracy of each group of pipes 10. Then the double-output shaft motor 34 drives the threaded rod 352 to rotate, and the threaded rod 352 drives the second installation sleeve 353. The second installation 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 cross section of the outer side of the pipe 10 is rotated to the side where the flange ring 9 is located through the rotating platform 5, and then the linear module 211 drives the mounting base plate 212 to drive the centering component 24 to move to a position matching the current length of the pipe 10, and then the hydraulic cylinder 241 drives the assembly plate 244, and the assembly plate 244 drives the conical block 242 through the assembly block 245 to push the flange ring 9 toward the pipe 10, and the hydraulic cylinder 241 simultaneously drives the first connecting rod 231, and the first connecting rod 231 drives the L-shaped mounting plate 232, and the L-shaped mounting plate 232 drives the fourth slide bar 2314 and the third mounting ear 217 to slide through the two sets of mounting blocks at the lower end, and at the same time, the fourth slide bar 2314 and the mounting seat on the inner top surface of the first mounting frame 213 slide for guidance, 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, so as to release the flange ring 9 on the V-shaped bottom plate 221 from being limited;

[0062] At this time, under the push of the conical block 242, the right side wall of the flange ring 9 fits the left cross section of the pipe 10, and then the flange ring 9 is centered and fits the pipe 10 under the action of the conical surface of the conical block 242, and then welded by the laser welding equipment 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, and the double-output The shaft motor 34 drives the second mounting sleeve 353, and 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 drive the inner support plate 356 together, so as to rotate the pipe 10, so as to facilitate welding the flange ring 9 and the pipe 10 all around. When the pipe 10 rotates, the flange ring 9 will be tightly attached to the pipe 10 under the push of the conical block 242, and the conical block 242 will drive the flange ring 9 and the pipe 10 to rotate synchronously under the action of friction. 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 equipment 6 is welding, the visual sensor 7 detects the bubble reflective points on the surface of the molten pool and the infrared sensor 8 detects the local temperature drop, and then transmits the detection information to the controller 100. The controller 100 analyzes and coordinates the real-time detection of whether the welding is defective, and adjusts the angle through the pipeline fixing component 3 to perform intelligent automatic repair, thereby improving the yield rate. After the welding is completed, the conical block 242 moves away, and the rotary platform 5 drives the internal support component 35 of the currently assembled pipeline 10 to rotate so that the flange sleeve welded by the flange ring 9 and the pipeline 10 moves to the rear side for unloading. At this time, another group of internal support components 35 is located at the front side for loading new pipelines 10;

[0064] When replacing the inner diameter model of the flange ring 9, self-adaptation can be achieved through the tapered block 242; when replacing the outer diameter model of the flange ring 9, the position of the second baffle plate 142 can be adjusted for adaptation through the multiple sets of mounting holes on the rear side of the adjustment plate 143, the installation position of the limit baffle 224 can be adjusted for adaptation through the threaded holes opened on the front side panel of the V-shaped bottom plate 221, and the height of the upper limit frame 222 can be adjusted for adaptation through the multiple sets of threaded holes opened on the upper end of the upper connecting plate 2311. The center of the circle of the replaced flange ring 9 will only be adjusted in the vertical direction under the action of the V-shaped bottom plate 221, and the installation can be adjusted by adjusting the mounting holes. The assembly position of the matching block 245 on the assembly plate 244 allows the conical block 242 to adapt to the center height of the pipe 10. The center of the pipe 10 can be aligned with the center of the flange ring 9 by corresponding adjustment of the scissor-type lifting platform 4; when the inner and outer diameters of the pipe 10 are replaced, the center does not change and does not need to be adjusted. When the length of the pipe 10 is replaced, the moving distance of the mounting base plate 212 is adjusted by 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, thereby realizing the automated, efficient, stable and accurate welding of the flange sleeve.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. The above description is only an embodiment of the present invention and is not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A laser welding device for flange sleeve production, comprising a feeding assembly (1) for feeding a flange ring (9), characterized in that: The feeding assembly (1) is connected to a feeding assembly (2) for fitting the flange ring (9) to the cross section of the pipe (10) and centering the flange ring (9); the feeding assembly (1) and the feeding assembly (2) can be adapted to flange rings (9) of various inner and outer diameters; It also comprises a pipe fixing assembly (3), the pipe (10) being fixed by the pipe fixing assembly (3), and the pipe fixing assembly (3) can adapt to pipes (10) of different lengths and different inner and outer diameters, the pipe fixing assembly (3) is a double-station assembly, and can simultaneously load the pipe (10) and unload the welded flange sleeve, a rotating platform (5) being installed below the pipe fixing assembly (3), a scissor-type lifting platform (4) being installed below the rotating platform (5), a laser welding device (6) for welding the flange ring (9) and the pipe (10) being arranged at the upper end between the feeding assembly (2) and the pipe fixing assembly (3), a visual sensor (7) being fixedly installed on the front side of the laser welding head in the laser welding device (6), and an infrared sensor (8) being fixedly installed on the rear side of the laser welding head in the laser welding device (6); The feeding assembly (2) comprises a moving platform (21), a position-limiting assembly (22), a follower assembly (23) and a centering assembly (24); the moving platform (21) is connected to the position-limiting assembly (22), the follower assembly (23) and the centering assembly (24); the position-limiting assembly (22) is connected to the feeding assembly (1) and the follower assembly (23); and the follower assembly (23) is connected to the centering assembly (24).

2. The laser welding device for flange sleeve production according to claim 1 is characterized in that: The feeding assembly (1) comprises a guide frame (11), a first support frame (12), a first avoidance groove (13), and a material blocking assembly (14); the upper end surface of the first support frame (12) is fixedly connected to the lower end surface of the guide frame (11); the first avoidance groove (13) is provided at the middle of the guide frame (11); and the material blocking assembly (14) is connected to the guide frame (11) and the limit assembly (22).

3. The laser welding device for flange sleeve production according to claim 2 is characterized in that: The material baffle assembly (14) comprises a first material baffle plate (141), a second material baffle plate (142), an adjustment plate (143), a first slide bar (144), a spring (145) and a connecting baffle plate (146); the first material baffle plate (141) is arranged at the front end of the guide frame (11); the left lower end of the first material baffle plate (141) is fixedly connected to the front upper end surface of the connecting baffle plate (146); the second material baffle plate (142) is arranged at the middle position of the guide frame (11); the first avoidance groove (13) is used to avoid the second material baffle plate (142); a plurality of mounting holes are arranged at equal intervals on the rear side of the adjustment plate (143); the right lower end of the second material baffle plate (142) is detachably connected to the adjustment plate (143) by bolts; Two groups of first slide bars (144) are arranged front and back, one end of each of the two groups of first slide bars (144) is fixedly connected to the left side wall of the adjustment plate (143), and the other end of each of the two groups of first slide bars (144) is fixedly connected to the right side wall of the connecting baffle (146). The two groups of first slide bars (144) are respectively connected to the mounting seats at the front and rear sides of the lower end of the guide frame (11) in a limited sliding manner. The springs (145) are arranged front and back, and are respectively sleeved on the outside of the two groups of first slide bars (144). One end of each of the springs (145) is fixedly connected to the left side wall of the adjustment plate (143), and the other end of each of the springs (145) is fixedly connected to the right side wall of the connecting baffle (146). The connecting baffle (146) is connected to the limiting assembly (22).

4. The laser welding device for flange sleeve production according to claim 3 is characterized in that: The mobile platform (21) comprises a linear module (211), a mounting base (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); the linear module (211) is arranged in two groups in a front-to-rear arrangement; the lower end surface of the mounting base (212) is fixedly connected to the upper end surfaces of the slide blocks on the two groups of 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 base (212); the mounting base (212) and the limit assembly (22 ), the first mounting frame (213) is connected to the centering assembly (24), two groups of the first mounting ears (215) are arranged in a left-right arrangement 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), and 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 follower assembly (23).

5. The laser welding device for flange sleeve production according to claim 4 is characterized in that: The limiting assembly (22) comprises a V-shaped bottom plate (221), an upper limiting frame (222), a lower limiting frame (223), a limiting baffle (224), a second supporting 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 supporting frame (225); the second supporting frame (225) is fixedly mounted on the upper end surface of the mounting bottom plate (212); the rear end of the V-shaped bottom plate (221) is arranged at the inner end of the lower limiting frame (223); the width of the V-shaped bottom plate (221) is smaller than the distance between the two inner side walls of the lower limiting frame (223); the V-shaped bottom plate (221) is fixedly mounted on the upper end surface of the mounting bottom plate (212); A plurality of threaded holes are provided on the front panel of the V-shaped bottom plate (21); the lower end of the limit 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 limit baffle (224) is in contact with the outer 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 rear end left side wall of the driving rod (226) is in contact with the front end right side wall of the connecting baffle (146); and the upper limit frame (222) and the lower limit frame (223) are connected to the follower assembly (23).

6. The laser welding device for flange sleeve production according to claim 5, characterized in that: The follower assembly (23) comprises 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 slide bar (2312), a third slide bar (2313) and a fourth slide bar (2314); a rear end of the first connecting rod (231) is connected to the centering assembly (24); a front right side wall of the first connecting rod (231) is fixedly connected to a left side wall of the L-shaped mounting plate (232); and the first rack (233) is connected to the centering assembly (24). The rear end surface of the L-shaped mounting plate (232) is fixedly connected to the front side surface of the vertical panel of the L-shaped mounting plate (232), and two groups of mounting blocks are fixedly installed at both ends of the lower end surface 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), and the left end of the fourth sliding rod (2314) is limitedly slidably connected to the mounting seat on the inner top surface of the first mounting frame (213), and the fourth sliding rod (2314) is limitedly slidably connected to the third mounting ear (217), and the first rack (233) is meshedly connected to the first gear (234), and the first gear (234) is rotatably mounted on the rear end of the second mounting ear (216), and the upper end surface of the first gear (234) is connected to the lower end surface 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 mounted on the rear ends of the two sets of first mounting ears (215), the second rack (238) and the third rack (239) are both meshed with the second gear (237), the second rack (238) is fixedly mounted on the upper front side wall of the lower connecting plate (2310), the lower rear side wall of the lower connecting plate (2310) is fixedly connected to the front end surface of the lower limit frame (223), the front side wall of the third rack (239) is fixedly connected to the upper end of the upper connecting plate (2311), and the lower rear side wall of the lower connecting plate (2310) is fixedly connected to the front end surface of the lower limit frame (223). The lower end rear side wall is fixedly connected, the upper end of the upper connecting plate (2311) is provided with a plurality of groups of threaded holes at equal intervals, the upper connecting plate (2311) is detachably connected to the rear end of the upper limit frame (222) by screws, two groups of mounting seats are respectively arranged and fixedly installed on the lower front side walls of the lower connecting plate (2310) and the upper connecting plate (2311), the lower end surfaces of the second sliding rod (2312) and the third sliding rod (2313) are fixedly connected to the upper end surface of the mounting base plate (212), the second sliding rod (2312) is limitedly slidably connected to the mounting seat on the lower connecting plate (2310), and the third sliding rod (2313) is limitedly slidably connected to the mounting seat on the upper connecting plate (2311).

7. The laser welding device for flange sleeve production according to claim 6, characterized in that: The centering assembly (24) comprises a hydraulic cylinder (241), a conical block (242), a second avoidance groove (243), an assembly plate (244) and an assembly block (245); the hydraulic cylinder (241) is fixedly mounted on the upper end surface of the first mounting frame (213); the rear end of the first connecting rod (231) is fixedly mounted 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 rear end surface of the lower end of the assembly plate (244); the left end of the conical block (242) is rotatably mounted on the right end surface of the assembly block (245); the second avoidance groove (243) is provided on the right side of the conical block (242); the conical block (242) is narrowed from the left side to the right side; a plurality of groups of mounting holes are provided on the assembly plate (244); and the assembly plate (244) and the assembly block (245) are detachably connected by screws.

8. The laser welding device for flange sleeve production according to claim 1, characterized in that: The pipeline fixing component (3) comprises a mounting shell (31), a partition (32), a rotating component (33), a double-output shaft motor (34), an inner support component (35) and an L-shaped limit plate (36); the lower end surface of the mounting shell (31) is fixedly connected to the output end of the rotating platform (5); the lower end surface of the rotating platform (5) is fixedly connected to the output end of the scissor-type lifting platform (4); the partition (32) is fixedly mounted on the left and right inner side walls of the mounting shell (31); the mounting shell (31) and the partition (32) are connected to the rotating component (33); the mounting shell (31) and the rotating component (33) are connected to the inner support component (35); a controller (100) is fixedly mounted on the right side of the upper end surface of the partition (32); and two groups of the inner support components (35) are symmetrically arranged on the left and right.

9. The laser welding device for flange sleeve production according to claim 8, characterized in that: The rotating assembly (33) comprises 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 mounted at a middle position of an upper end surface of the partition (32); an output end of the driving motor (331) passes through the partition (32); the output end of the driving motor (331) is fixedly connected to an 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 mounted on the middle of the outer side wall of the transmission rod (334); the transmission rod (334) is rotatably mounted on the left and right inner side walls of the mounting housing (31); two groups of the third gear (335) and the fourth gear (336) are arranged in a left-right arrangement; the two groups of the third gear (335) are respectively fixedly mounted on the outer side walls at 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; and the fourth gear (336) is connected to the inner support assembly (35).

10. The laser welding device for flange sleeve production according to claim 9, characterized in that: The inner support assembly (35) comprises 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 frame (357); the two groups of the fourth gears (336) are respectively fixedly mounted on the outer side walls of the inner ends of the two groups of the first mounting sleeves (351); the two groups of the first mounting sleeves (351) are respectively rotatably connected to the left and right panels of the mounting shell (31); the outer side surfaces of the two groups of the second mounting frames (357) are respectively fixedly connected to the inner side surfaces of the two groups of the fourth gears (336); the inner sides of the two groups of the second mounting frames (357) are respectively detachably connected to the left and right end surfaces of the double-output shaft motor (34) by screws; the two groups of output ends of the double-output shaft motor (34) are respectively connected to the threaded rods (352) on both sides. ), the threaded rods (352) on both sides are respectively connected to the first mounting sleeves (351) on both sides for 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 three groups in a circular array, the inner side of each group of inner support plates (356) is respectively hinged to the upper ends of a group of second connecting rods (354) and two groups of 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), the outer side of each group of inner support plates (356) is provided with a plurality of groups of threaded holes at equal intervals, and each group of inner support plates (356) is detachably connected to a group of L-shaped limiting plates (36) by screws.

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