1133 results about "Seam welding" patented technology

The invention belongs to the technical field of aviation accessory production, and particularly relates to a welding machining system and method for assembling a combined aviation aluminum shell. The inner supporting plate bending assembly and the inner supporting plate punch forming assembly are jointly used for conducting punching machining on the upper side and the lower side of the joint, a protruding plate which is folded inwards is formed in the punching forming process, and the inner supporting plate bending assembly is used for bending the protruding plate to form an inner supporting plate; the inner side and the outer side of the joint can be welded at the same time through the joint welding assembly; by means of the inner supporting plate punching assembly, an installation hole facilitating installation of a threading plate through a bolt can be formed and machined in the inner supporting plate, in this way, main components of the combined type aviation aluminum shell can be reliably clamped, and reliable anti-deformation supporting is provided in the trepanning and welding process; two sides of the weld are uniformly heated, and internal stress is relatively balanced, so that deformation is reduced, and the overall quality of the weld is improved.

The invention discloses a welding robot system based on body sensing and an intelligent route generation method, and belongs to the technical field of robot welding, the welding robot system comprises a body sensing module, a fusion processing module, an intelligent route generation module and an execution feedback module, the body sensing module collects multi-modal data in parallel through multiple sensing units and preprocesses the multi-modal data; the fusion processing module combines a three-dimensional attention mechanism and digital twinning mapping to realize deep feature fusion, the intelligent route generation module outputs an adaptive path through planning-optimization-layered correction, and the execution feedback module constructs a full-closed-loop dynamic adjustment mechanism. By the adoption of the system and method, the problems that physical and virtual scenes are not synchronous, dynamic interference response is insufficient and path adaptability is poor in complex welding seam welding are accurately solved, and the welding path fitting degree and quality stability are remarkably improved.

The invention discloses a welding track planning method and device of a welding robot, the welding robot, a storage medium and a computer program product, and the method comprises the following steps: inputting point cloud data of a workpiece into a point cloud semantic segmentation model to obtain welding seam point cloud data of a linear welding seam of the workpiece; fitting the welding seam point cloud data to obtain a welding seam welding spot of the linear welding seam; welding spot fine adjustment and pose estimation are carried out on the welding spot of the welding seam, and the welding track of the linear welding seam is obtained. According to the scheme, the semantic segmentation model is used for processing the point cloud data, welding seam fitting and welding spot fine adjustment are carried out, the point cloud of the linear welding seam can be accurately recognized and extracted, the efficiency and accuracy of welding seam detection are improved, and the precision and adaptability of welding track planning are further improved.

The invention discloses a friction stir welding device for a large-curvature thin-wall round pipe type structure, which comprises a weldment clamping tool, a clamping tool supporting mechanism, a stirring welding main shaft, a stationary shaft shoulder stirring welding stirring head and a filling stirring welding stirring head, and further discloses a using method of the device. According to the method, after the joint surfaces of the two round pipes are welded through friction stir circular seam welding of the stationary shaft shoulder, the end part of the filling rod is reserved in the keyhole for filling by using a filling friction stir welding method to finish welding, the method is a solid-phase welding method, and compared with melting welding methods such as electric arc welding and laser welding, the performance of the welded joint is better.

The invention belongs to the technical field of fusion welding, and particularly relates to a method for planning multi-layer and multi-welding-seam welding parameters according to welding seam feature information, which comprises the following steps: 1) laser emitted by a 3D visual sensor is perpendicular to a welding seam and scans along the direction of the welding seam, and the 3D visual sensor scans welding seam data and transmits the data to a robot controller in real time; (2) the robot controller processes the weld joint data, the whole weld joint is subjected to multi-layer and multi-pass planning calculation, and the number of welding layers and the number of welding passes of each layer are planned; (3) the robot controller calculates the layer number and the channel number of a welding channel needing to be welded currently, a welding gun track coordinate set on a welding path and welding parameters corresponding to welding path points; and (4) the robot controller adjusts the welding track and the welding parameters in real time according to the step (1) to the step (3) in the current welding bead welding process, so that the purpose of multi-layer and multi-pass planning self-adaptive welding of the medium-thickness plate is achieved.

The invention discloses girth welding equipment for pressure vessel production, belongs to the technical field of welding, and aims to solve the problems that the overall production efficiency of welding is low, and the health of operators can be threatened when flue gas is directly discharged into a working environment. A welding device is arranged on the rack, a guide rod is fixedly connected into the rack below the welding device, a servo motor and a first belt are fixedly connected to the bottom end of the rack below the guide rod, the first belt is arranged on the outer side of the extending end of the servo motor in a sleeving mode, a rotating shaft is arranged in the first belt, and a driving gear is arranged on the outer side of the rotating shaft in a sleeving mode. By means of the device, left-right alternate feeding can be achieved, the waiting time is shortened, the welding process is more continuous and efficient, meanwhile, smoke generated during welding can be collected, emission of harmful gas and smoke dust is reduced, and air pollution of a welding area is reduced.

The invention relates to a power battery module side seam welding monitoring system based on digital twinning, and belongs to the technical field of battery welding, the power battery module side seam welding monitoring system comprises a data acquisition module used for acquiring welding data in real time; the selection mapping module is used for acquiring three-dimensional models corresponding to the side seam welding equipment and the welding product, and mapping the welding data and the corresponding three-dimensional models; the model construction module is used for constructing a digital twin model based on the three-dimensional model and the welding data corresponding to the three-dimensional model; the data early warning module is used for comparing the welding data in the digital twin model with preset data and generating warning information under the condition that the welding data does not conform to the preset data; and the report generation module is used for generating a welding report based on the alarm information and the three-dimensional model corresponding to the alarm information. According to the method, the welding process and the equipment operation state are observed in real time through the digital twinborn model, the alarm information is generated under the condition that abnormity is found, welding defects are corrected in time, and then defective products are reduced.

The invention belongs to the technical field of welding equipment, and particularly relates to a thin-wall container vertical girth welding device which comprises a base, a supporting plate is fixedly connected to one side of the upper end face of the base, a welding gun is arranged on one side of the upper end of the supporting plate, and a clamping turnover mechanism used for adjusting the angle of a container is further arranged on the base. The clamping and overturning mechanism comprises a displacement plate slidably connected to one side of the upper end face of the base, sliding seats are slidably connected to the two sides of the upper end face of the displacement plate, first sliding rods are slidably connected to the two sides of the upper ends of the sliding seats, and lifting plates are fixedly connected to the upper ends of the first sliding rods. Under the cooperation of the clamping turnover mechanism and the taper adaptive material control mechanism, a plurality of disorderly stacked containers to be welded are separated in order, the opening directions of the containers are distinguished, the openings of the two containers are precisely attached, then welding work is conducted, and the situation that workers need to manually and precisely place the containers at the welding positions is avoided.

The invention relates to a high-temperature superconducting cable and a manufacturing process thereof, and belongs to the technical field of electric wires and cables.The cable comprises a supporting framework, a buffer layer, a three-phase superconducting composite layer, a shielding layer, a heat insulation layer and a sheath layer which are sequentially arranged from inside to outside; the heat insulation layer comprises at least two layers of corrugated pipes formed by continuous rolling and welding, and the corrugated pipes are of periodic concave-convex structures obtained by conducting continuous rolling and side seam welding on metal strips to form closed pipe bodies and then conducting embossing treatment on the closed pipe bodies. A woven reinforcing layer wrapping the peripheries of the corrugated pipes is further arranged in the heat insulation layer, and the adjacent corrugated pipes are connected through supporting pieces to form a vacuum interlayer. According to the application, the corrugated pipe formed by continuous coiling and welding is combined with the combined structure of the braided reinforcing layer and the supporting piece, so that the continuous production of the large-length high-temperature superconducting cable can be conveniently realized, and the problems of axial stress concentration and seam accumulation defects existing in a heat insulating layer of a traditional prefabricated sleeve pipe can be eliminated; and the air tightness stability of the vacuum interlayer of the large-length high-temperature superconducting cable is ensured.

A battery cell includes a can and an electrode assembly accommodated in the can. The can includes a bottom member, a sidewall member connected to the bottom member and extending upwardly therefrom in an axial direction, and a cap covering an open end of the can at an axial end opposite to the bottom member. A current collector plate is electrically connected to an electrode of the electrode assembly proximate the open end. An edge of the cap is welded by forming a plurality of first welding portions spaced apart from one another along a circumferential direction, in each of which the sidewall member, the edge of the cap, and the current connector plate are all welded together. A second welding portion is also formed continuously along the circumferential direction, in which the sidewall member and the edge of the cap are both welded together.

The invention provides a welding system applied to a stainless steel rocket tank assembly circular seam. The welding system comprises a short cylinder-short cylinder circular seam welding inner supporting module and a short cylinder-end socket circular seam welding inner supporting module. The short cylinder-short cylinder girth welding inner supporting module comprises a short cylinder-short cylinder supporting module and a short cylinder-short cylinder inner supporting module; the short cylinder-end socket girth welding inner supporting module comprises a short cylinder-end socket supporting base and a foldable stand column module, and the short cylinder-end socket supporting base is used for supporting the foldable stand column module. The foldable stand column module comprises a short cylinder-end socket supporting stand column and a short cylinder-end socket inner supporting module, and the short cylinder-end socket inner supporting module can rotate around the short cylinder-end socket supporting stand column so that the free end of the short cylinder-end socket inner supporting module can be close to or away from the short cylinder-end socket supporting stand column. The welding system can simplify the girth welding process of the stainless steel storage tank assembly.

The invention belongs to the technical field of welding equipment, and particularly relates to a welding device with a heat dissipation function for aluminum material machining and a welding method.The welding device comprises a straight seam welding body, a clamping assembly and a driving assembly are arranged on the straight seam welding body, and a position adjusting assembly is assembled on one side of the driving assembly; a locking plate is assembled at one end of the position adjusting assembly, a welding head is assembled at one end in the locking plate, and the polishing part comprises a guide rod, a support, an elastic element and a polishing motor. The polishing motor drives the polishing roller to rotate to polish an oxidation film at the aluminum material seam, the oxidation film is prevented from influencing formation of a molten pool, meanwhile, gas is conveyed into the preheating air duct and the cooling air duct through the air inlet fan, the gas in the preheating air duct can preheat and clean the aluminum material seam after absorbing heat, and the aluminum material seam can be cooled through the cooling air duct. And gas in the cooling air duct can cool the welding seam, so that the welding seam quality is improved.

The invention belongs to the technical field of seam welding detection, and particularly discloses and provides a roof waterproof roll seam welding detection method which comprises the following steps: constructing a three-dimensional model of a to-be-constructed welding area, and marking the type of a welding detection point; welding characteristic analysis is conducted on the welding area, and all welding characteristic indexes are obtained; the number of welding detection points is determined, and the welding detection points are marked; confirming a standard passing threshold value of each welding detection point corresponding to each welding detection index; building a welding quality inspection model; sequentially carrying out quality inspection according to a set welding quality inspection plan, and recording quality inspection values; and the welding quality score value is output, and a welding quality inspection report of the waterproof coiled material is constructed and fed back. According to the method, the defect that current welding detection points are arranged comprehensively is effectively overcome, the specific welding characteristics of the waterproof coiled material are fully combined, the adaptability of a seam welding detection scene of the roof waterproof coiled material is improved, and meanwhile the representativeness and rationality of a welding detection result are guaranteed.

The utility model provides an anti-splashing device of a seam filling welding machine, which comprises a protective cover, an avoiding opening is arranged at the upper end of the protective cover, a sliding cover is slidably connected in a sliding groove arranged in the protective cover, an observation window is arranged in a mounting opening arranged on the front side surface of the sliding cover, and locking mechanisms for locking the sliding cover are arranged on the left side and the right side of the protective cover. And a scraping and brushing mechanism is slidably arranged in the sliding cover. According to the anti-splashing device of the seam filling welding machine, the length of the protective cover can be flexibly adjusted according to the height of materials needing seam filling welding, it is ensured that sufficient protection can be provided in welding operation at any height, harm of splashing objects to personnel and the environment is avoided, and the adaptability of the anti-splashing device is greatly improved.

The invention discloses a production method of a 450MPa-grade hot-rolled plate coil for a thin-specification low-Mn longitudinal welded pipe. The production method comprises the following steps: limiting chemical components and contents of the hot-rolled plate coil in percentage by mass; the invention relates to a production process flow. KR molten iron desulphurization pretreatment, converter top and bottom blowing, LF furnace refining, RH vacuum treatment, slab continuous casting, reheating furnace treatment, rough rolling high-pressure water descaling, fixed-width press treatment, E1R1 roughing mill treatment, E2R2 roughing mill treatment, flying shear treatment, finish rolling high-pressure water descaling, F1-F7 finishing mill treatment, encryption type laminar cooling, coiling, tray transportation system treatment, sampling and inspection. According to the method, based on the advantages of 2250 mm hot rolling unit equipment, a high-grade pipeline steel product which is 5-10 mm thick and used for manufacturing the longitudinal welded pipe can be produced, meanwhile, it is guaranteed that the produced pipeline steel has high obdurability, and the production cost is low.

The invention relates to the technical field of welding, in particular to a steel member production line which comprises a bottom plate, a plurality of supporting assemblies are arranged on the upper side of the bottom plate, a centering positioning assembly is arranged on the upper side of the bottom plate, a feeding assembly is arranged on the upper side of the bottom plate and used for feeding steel members, and the feeding assembly comprises two self-adaptive clamping assemblies. The automatic butt joint welding assembly is arranged between the two self-adaptive clamping assemblies, the feeding assembly is used for controlling the automatic butt joint welding assembly to conduct automatic butt joint, the oil coating assembly is arranged on one side of the automatic butt joint welding assembly, the oil supply assembly is arranged on the upper side of the oil coating assembly, and the feeding assembly is used for driving the oil supply assembly to conduct continuous quantitative oil supply. By arranging the feeding assembly, the automatic butt-joint welding assembly, the oil coating assembly and the oil supply assembly, the automatic butt-joint welding machine has the functions of automatic butt-joint, automatic feeding, universal feeding, continuous automatic welding, continuous automatic oil coating, automatic continuous oil supply and automatic control.

The invention relates to a welding system for a tank body, in particular to a P + T automatic welding system and method suitable for a square and round tank body, and aims at solving the problems that an existing circular seam welding method for the square and round tank body is tedious in step, consumes time and manpower, is poor in weld seam appearance forming and is high in repair rate. The system comprises a tank body clamping displacement assembly, a robot assembly and an AGV moving trolley. The tank body clamping displacement assembly comprises a displacement machine moving ground rail, two head and tail frame servo moving mechanisms arranged on the displacement machine moving ground rail, head and tail frame robot displacement machines arranged on the two head and tail frame servo moving mechanisms correspondingly, and a displacement machine control system electrically connected with the two head and tail frame servo moving mechanisms correspondingly. The robot assembly comprises a heavy-load robot moving ground rail and a welding robot. The two welding robots are each provided with a welding gun combination, and each welding gun combination comprises a plasma welding gun and an argon tungsten-arc welding gun.

The utility model belongs to the field of electric power pole tower production, and particularly relates to a welding device for electric power pole tower production, which comprises a base, two supporting seats are mounted at the top of the base, rotating shafts are rotatably connected to the two supporting seats, adjusting seats are fixedly connected to the end parts of the rotating shafts, and the adjusting seats are fixedly connected to the top of the base. And a first threaded rod is rotationally connected to the interior of the adjusting seat, and a movable frame is rotationally connected to the first threaded rod. Through mutual cooperation of the adjusting seat, the movable frame, the fixed plate and other structures, side plates of different specifications can be spliced and fixed, a spliced connecting seam is just located under the welding machine, a worker can conduct straight seam welding on the side plates only by moving the welding machine, seam alignment is not needed, and the working efficiency is improved. And through mutual cooperation of a worm, a worm gear, a rotating shaft and other structures, the plate can be turned over after top face welding is completed, and the plate does not need to be disassembled and fixed again.

The invention discloses a large steel pipe automatic assembling and welding operation device which comprises a walking assembly, a welding assembly, an assembling assembly, an overturning assembly connected with the walking assembly and the welding assembly and a telescopic assembly connected with the welding assembly and the assembling assembly. The walking assembly is used for walking in a steel pipe and driving the welding assembly and the splicing assembly to rotate circumferentially, the welding assembly is used for welding a longitudinal seam in a single steel pipe section and a circular seam between two adjacent steel pipe sections, the splicing assembly is used for grabbing tiles and driving the tiles to rotate circumferentially, and the telescopic assembly is used for telescopic movement of a movable end. The overturning assembly is used for driving the welding assembly and the splicing assembly to overturn relative to the walking assembly so as to adjust the angle when the steel pipes are spliced; compared with the prior art, automatic operation and mutual connection of working procedures of tile splicing, longitudinal seam welding, steel pipe splicing, circular seam welding and the like of the large steel pipe in an installation site are achieved at the same time.

The invention discloses full-automatic girth welding equipment for a cabinet body of an electrical cabinet. The full-automatic girth welding equipment comprises a workbench, an electric adjusting unit and a counterweight unit, the rear side of the upper surface of the workbench is provided with a stand column, the upper end of the stand column is slidably connected with a beam, the front end of the beam is rotatably connected with a rotating shaft, the lower end of the rotating shaft is slidably connected with a rotating arm, the front end of the rotating arm is rotatably connected with a welding gun seat, and the front end of the welding gun seat is provided with a welding gun. The electric adjusting unit is used for driving the welding gun seat to translate and rotate; according to the full-automatic girth welding equipment for the cabinet body of the electrical cabinet, a girth can be automatically welded, meanwhile, the position can be automatically adjusted, mass distribution of one circle of a rotating shaft can be balanced, the welding efficiency is improved, and the welding quality is improved. The stability of the welding gun during rotation and movement is guaranteed, and the welding quality and the welding efficiency of the circular seam are improved.

The invention provides self-adaptive roller carrier equipment for a segmented different-diameter irregular barrel, and relates to the technical field of auxiliary equipment for circular seam welding of carbon steel and stainless steel barrels in the boiler industry. The self-adaptive roller carrier equipment comprises a machine base, a driving roller set and a driven roller set are symmetrically arranged on the machine base, and driving rollers at the two ends are used for supporting one end of the barrel; driven rollers are arranged at the two ends of the driven roller set and used for supporting the other end of the to-be-welded barrel; the distance between driving rollers at the two ends of the driving roller set can be adjusted so as to be matched with to-be-welded barrels with different barrel diameters, and the distance between driven rollers at the two ends of the driven roller set can be matched with to-be-welded barrels with different barrel diameters. A lifting assembly is arranged between the driven roller set and the machine base and used for adjusting the height of the driven roller set. The lifting assembly is in sliding fit with the machine base and is driven by the axial adjusting assembly, so that the lifting assembly drives the driven roller set to move close to or away from the driving roller set in the axial direction of the barrel to be welded.

A computer display support welding device comprises a main supporting frame and a to-be-welded pipe, a circular seam welding mechanism is arranged at the top of the main supporting frame, the circular seam welding mechanism conducts pre-cleaning and welding operation on the to-be-welded pipe through a plasma welding head, bottom supporting bases are arranged on the two sides of the main supporting frame, and an auxiliary righting mechanism is arranged on the side face of the main supporting frame. The centering and positioning mechanisms are arranged on the two sides of the auxiliary righting mechanism, the auxiliary righting mechanism controls the centering and positioning mechanisms to be close to or away from to-be-welded pipes, so that feeding or discharging of the to-be-welded pipes is completed, the centering and positioning mechanisms clamp and position the to-be-welded pipes, and the to-be-welded pipes located on the two sides are in the state that the central axes coincide. And the to-be-welded pipes on the two sides are controlled to move to the to-be-welded positions. And only the plasma welding head moves in the overall welding process, so that the device consumes less energy in the welding process, and the overall welding cost is reduced.

The invention belongs to the technical field of centrifugal pump production, particularly relates to an intelligent welding system and method for multi-stage centrifugal pump impeller machining, and aims at a combined impeller composed of a lower cover plate, an upper cover plate, a blade component, an upper pressing plate component, a lower pressing plate component and a locknut. The positioning rotary disc assembly is used for positioning the lower pressing plate component and the lower cover plate and driving the lower pressing plate component and the lower cover plate to rotate, the blade feeding assembly is used for installing the blade components on the lower cover plate one by one, the feeding mechanical arm is used for installing the upper cover plate above the blade components, and the rotating direction of blade parts in the blade components can be adjusted. After adjustment, the position of the lower cover plate is locked through the upper pressing plate component, a locknut is installed on the outer side of a screw rod, extending out of the lower pressing plate component, in the upper pressing plate component through a screw turning machine, and finally welding treatment is conducted on a welding inner seam / welding outer seam at the butt joint position of the lower cover plate and the upper cover plate through the inner seam welding assembly / outer seam welding assembly. And the rapid assembly requirement of the combined impeller is met, and the welding efficiency is high.

The invention discloses an adjustable longitudinal seam welding outer opening preheating device which comprises a bottom plate, a clamp, a supporting frame, inserting holes formed in the front portion and the rear portion of the bottom plate, a threaded shaft arranged at the bottom end of the supporting frame, and a limiting nut in threaded connection with the outer surface, located above the bottom plate, of the threaded shaft. Sliding grooves are formed in the two sides of the top end of the supporting frame, and the sliding mechanism is slidably connected to the upper portion of the supporting frame. The height of the supporting frame is changed by rotating the limiting nut to adjust the length of the supporting frame penetrating into the lower portion of the bottom plate so as to adapt to barrels of different diameters, the heating mechanism is started, the lead shaft rotates to drive the heating mechanism to reciprocate along the weld joint, and in the movement process, the rotating gear works to drive the heating mechanism to swing, so that the heating effect is improved. And the electromagnetic telescopic rod follows to make length compensation, and the swing amplitude of the rotating gear is changed by limiting the width of an area needing to be heated, so that cylinder welding seams with different diameters can be fully preheated.

The invention relates to the technical field of metal net welding, in particular to intelligent metal net welding equipment which comprises a support, a seam welder and the like. A first electric sliding block is slidably connected to the support. A seam welder is fixedly connected to the first electric sliding block. According to the metal net edge rolling device, only one end of a metal net needs to be manually placed between the abutting rod and the clamping rod, then the metal net is automatically rolled into a cylindrical shape through the guide rod, manual edge rolling operation on the metal net is not needed, the manual labor amount is reduced, and the problems that due to manual operation, the two ends of the overlapped position of the metal net are prone to dislocation, and welding seams are inclined after welding is completed are solved. The problem that the metal net forms an irregular cylinder is solved; and the seam welding electrode wheel of the seam welding machine is used for rolling and welding the overlapped part of the metal net, so that the seam welding machine does not need to be manually held by hand for welding operation.

The invention relates to a straight seam welding system for pipes, which is provided with a working platform and a rack fixed on the working platform, and is characterized in that the working platform is provided with a feeding station, a calibration station and a welding station, the feeding station is provided with a feeding mechanism capable of feeding, clamping and positioning the pipes, and an outer centering mechanism; the calibration station is provided with an inner centering mechanism, a hanging arm, a hook mechanism and a pipe pushing mechanism, wherein the hanging arm is fixed to the rack and can stretch into a pipe to support the pipe when the pipe is fed, the hook mechanism can be connected with the hanging arm in a matched mode, and the pipe pushing mechanism can push, press and position the pipe on the hanging arm. The piano key pressing plate mechanisms are oppositely arranged on the rack and can abut against the tops of the pipes, and a laser welding mechanism capable of welding weld joints on the pipes is arranged on the welding station; the invention further relates to a welding method, an electronic device and a storage medium. The pipe welding device is ingenious in structure, capable of achieving fast, efficient, stable and accurate welding of pipes, convenient and practical.

The invention relates to the technical field of stainless steel cylinder welding, in particular to laser straight seam welding equipment and method for a stainless steel cylinder. The equipment main body comprises a manipulator with seven degrees of freedom, and the manipulator is used for performing laser straight seam welding on the stainless steel cylinder; the clamping seat is detachably arranged and is provided with a clamping hole matched with the outer diameter of the stainless steel cylinder, and a circle locking mechanism is arranged at the clamping seat and is used for clamping and fixing the end part of the outer wall of the stainless steel cylinder; the outer rounding mechanism and the inner rounding mechanism are used for rounding the outer wall and the inner wall of the stainless steel cylinder in the reciprocating motion process, through the structure, the straight seam of the stainless steel cylinder is well repaired, the situations of rolling, folding and concave-convex are avoided, and the inferior product rate is reduced. The method is realized through the equipment.

The utility model discloses a thin-wall container vertical girth welding device which comprises a base and a welding support, the welding support is fixedly installed on one side of the upper end of the base, a rotating motor is arranged on the other side of the upper end of the base, a rotating installation disc is arranged at the upper end of the rotating motor, and an adjusting welding structure is arranged in the welding support. The utility model relates to the technical field of welding equipment, in particular to an adjustable welding structure, which is characterized in that firstly, two annular containers can be stably mounted through a rotary mounting disc and a hoisting fixing component, a gap of an annular seam position is ensured, and the annular containers are rotated at a constant speed through a motor, so that the annular seam welding operation can be conveniently carried out on the annular containers; and the screw rod is matched with the electric push rod, so that the height and the transverse position of the welding gun can be adjusted, and welding operation of annular containers of different specifications can be met.

According to the welding equipment and the welding process for the longitudinal seam of the buckling long profile, the welding robot can alternately weld workpieces between the two welding stations, the utilization rate of the welding robot is higher, and higher production efficiency is guaranteed. The intermittent and symmetrical welding process is carried out through multiple sets of robots, unmanned welding of the long-strip-shaped workpieces is achieved, the labor intensity is reduced, the welding seam quality is guaranteed, the workpiece deformation amount is reduced, the repair rate is reduced, and the machining efficiency and the qualified rate are improved. The positioning and clamping mechanism can move automatically, and automatic dead-zone-free welding machining on the rotary workbench is effectively achieved. And a communication interface is reserved in electrical control of the equipment, so that the equipment can be directly connected with the workshop internet and transmit information, visual and intelligent management of the equipment is facilitated, and the production efficiency and the safety are greatly improved.

The present invention discloses an auxiliary device for circumferential seam welding of large pressure vessels, relates to the field of welding technology, and comprises two welding auxiliary devices, wherein a connecting assembly is arranged between the two welding auxiliary devices, and a guiding transmission assembly is arranged between the two welding auxiliary devices; by starting a connecting motor, a threaded shaft can be driven to rotate, so that two groups of welding auxiliary devices carrying pressure vessels gradually approach each other, and at the same time, under the cooperation of the guiding transmission assembly and the supporting assembly, two groups of supporting plates can be driven to contact the ground to support the ground; during the welding process of the pressure vessel, if it topples due to an operational error, the support of the two groups of supporting plates can greatly reduce the probability of the welding auxiliary equipment tipping over, thereby improving the safety in the welding operation; and the provision of the wear-resistant plate can prevent displacement during the welding process of the pressure vessel, thereby greatly improving the welding stability.