3149 results about "Pipe welding" patented technology

The invention provides an intelligent real-time detection method and system for PCCP welding quality, and relates to the technical field of online detection and intelligent evaluation of pipeline welding quality through machine learning. Light energy data and multi-light-source images of a spiral weld pool are collected, exposure parameters are dynamically adjusted through the energy difference of visible light near-infrared bands, and the real-time detection of the PCCP welding quality is achieved. Inhibiting strong light interference and generating a weld surface image; a stress concentration area is positioned by scanning a welding seam thermal deformation area and combining speckle pattern change, sound frequency change and the elastic characteristic of the thin-wall steel cylinder; inputting the surface image and the deformation data into a space-time convolutional neural network, fusing light energy change, image details and spatial features to construct a weld joint space structure diagram, and adaptively correcting the position of a sensor; and comparing the sinking depth of the three-dimensional point cloud reconstruction, analyzing the correlation between the sinking degree and the stress, and generating a probability thermodynamic diagram to output the pressure-bearing failure risk level, so that the probabilistic early warning of the pressure-bearing failure risk can be realized.

The invention relates to the field of welding seam detection, in particular to an air conditioner refrigeration copper pipe welding defect detection device which comprises a base, positioning assemblies are symmetrically arranged on the two sides of the upper end of the base, each positioning assembly comprises a shell with a central through hole, a to-be-detected copper pipe horizontally penetrates through the central through hole of the shell, and a fixed cross beam is fixedly arranged between the top ends of the shells. Fixed ring frames are fixedly arranged at the two ends of the bottom of the fixed cross beam, movable ring frames are rotatably mounted in the fixed ring frames, the two movable ring frames are fixedly connected through mounting plates, the number of the mounting plates is four, the mounting plates are distributed in a cross shape, a pressure assembly is arranged on the mounting plate at the top end, and a detection assembly is arranged on the mounting plate at the bottom end. The stress load is gradually applied to the weld joint position of the to-be-detected copper pipe through the pressure assembly, and the deformation process of the weld joint position is monitored in real time in cooperation with the detection assembly, so that the bending strength of the weld joint position of the to-be-detected copper pipe can be dynamically detected in the circumferential direction.

The invention relates to the technical field of welding quality evaluation, in particular to a carbon steel pipe welding quality evaluation system which comprises a welding area three-dimensional scanning module, a welding seam dynamic grid generation module, a welding form change analysis module, a welding seam structure diagram construction module, a welding seam quality diagram convolutional network module and a welding defect intelligent recognition module. According to the invention, through real-time adjustment of the dynamic grid generation module, tiny changes of the geometric shape of the welding seam can be captured, new dimensions are provided for welding quality evaluation through generation of welding form characteristic data and construction of the welding seam structure diagram, and the introduction of the welding seam quality diagram convolution network module can improve the accuracy of welding quality evaluation. Node relations and structural features in a weld joint diagram structure are analyzed through a deep learning technology, an intelligent means is provided for welding quality evaluation, an intelligent welding defect identification module optimizes an identification process, various welding defects can be accurately classified, and a powerful technical support is provided for guarantee of welding quality.

The invention discloses an inner clamping type steel pipe welding clamp, and belongs to the technical field of steel pipe welding. Comprising a bottom plate, clamping wheels and other components, the rotating directions of threads at the two ends of a double-end threaded rod are opposite, the double-end threaded rod and a polished rod are installed on the bottom plate side by side, an output shaft of a first motor is connected with a first bevel gear, a second bevel gear matched with the first bevel gear is fixedly installed in the middle of the double-end threaded rod, and two clamping mechanisms are oppositely installed on a threaded sleeve. The two movable plates are symmetrically and slidably installed in the sliding grooves in the two ends of the bottom plate, and a containing table is fixed to the upper ends of the movable plates. According to the clamping mechanism, the multiple contact parts are used for conducting multi-point positioning on the interiors of the steel pipes at the same time, meanwhile, the height of the clamping mechanism can be adjusted, the steel pipes are directly stabilized in the air through the clamping mechanism, the two steel pipes needing to be welded can be adjusted to be concentric and free of deviation, and the steel pipes cannot be shielded; and welding, grinding, polishing and other work are facilitated, and the precision of butt joint and post-treatment is improved.

The utility model relates to the technical field of hydraulic pipe welding, and discloses a pipeline welding device with a positioning structure, which comprises a base, an annular frame is fixedly mounted on the upper surface of the base, a sliding block is slidably connected to the inner wall of the annular frame, a welding gun is fixedly mounted at the top of the sliding block, and the positioning structure is fixedly mounted on the welding gun. According to the pipeline welding device with the positioning structure, six sets of clamping jaws can synchronously rotate and get away from one another by pushing a lantern ring to be matched with a connecting rod, at the moment, a hydraulic pipe can be placed among the six sets of clamping jaws, and then the lantern ring is loosened to be matched with a spring and the connecting rod to enable the six sets of clamping jaws to synchronously rotate and get close to one another; and meanwhile, the hydraulic pipe can be clamped through cooperation with the rubber block, so that positioning of the hydraulic pipe is completed, through the clamping mode of the lantern ring, the connecting rod, the clamping jaw and the rubber block, the pipeline can be rapidly positioned, and the hydraulic pipe clamp can be suitable for hydraulic pipes with different pipe diameters and is more convenient to use.

The invention discloses a welding gun pose online planning method for multi-layer and multi-channel external welding of a pipeline and related equipment. The method belongs to the technical field of intelligent welding and comprises the steps that a laser line image and welding gun posture data of a pipeline welding groove are obtained; extracting feature pixel points from the laser line image; converting the three-dimensional point cloud into a three-dimensional point cloud through a detection mathematical model, fitting to obtain a three-dimensional welding groove graph, and calculating a welding groove size parameter, a welding gun pose parameter and a to-be-welded workpiece pose parameter by utilizing the three-dimensional welding groove graph and the welding gun pose data, so as to determine a welding gun pose planning value; filling welding of the current pass is conducted along the welding groove according to the welding gun pose planning value, meanwhile, the welding gun pose real-time value is detected in real time, and the welding gun pose real-time value is corrected; in the return stroke, welding gun pose parameters are re-planned; and after multi-pass filling welding is completed, a welding gun is controlled to conduct cosmetic welding on the welding groove, and pipeline outside welding is completed. Therefore, the method can obtain a better welding effect.

The invention relates to the field of flange plate welding, in particular to an automatic flange plate welding device which comprises a fixing table, a three-jaw chuck used for clamping a flange plate is arranged at the upper end of the fixing table, and a fixing mechanism used for fixing the flange plate and a pipeline and a circumferential welding mechanism used for welding the pipeline to the flange plate are arranged above the fixing table. In the downward moving process of the fixing mechanism, the flange plate which is clamped and fixed can be limited in the circumferential direction, the upper end of a pipeline can be pressed, meanwhile, the pipeline can be clamped through the inner clamping assembly, the effect that one machine has multiple functions is achieved, it is ensured that the flange plate and the pipeline reach the optimal alignment state before welding, and the welding efficiency is improved. And meanwhile, the overall structural stability in the welding process can be further improved, the welding quality is improved, and the overall working efficiency is improved.

The invention discloses a pressure pipeline welding device, and relates to the technical field of pipeline welding, the pressure pipeline welding device comprises a machine base and a cross beam installed on one side of the machine base, a guide rod and a rotating rod are connected to the two sides of the top of the machine base in parallel, and a fixing base for providing pipeline alignment outer ring welding support is installed in the middle of the machine base. According to the pressure pipeline welding device, the inner welding gun is used for carrying out inner circumference root welding treatment on the inner groove of the abutted seam, and then the outer welding gun with the adjustable angle is used for carrying out outer circumference root welding and wave welding on the outer groove of the abutted seam in sequence; the traction assembly is used for pulling the pipeline clamped by one clamping mechanism to abut against the pipeline clamped by the other clamping mechanism, so that the abutted seam gap between the two to-be-welded pressure pipelines is reduced during welding, and it is guaranteed that abutting welding is achieved for inner and outer abutted seam grooves of the pressure pipelines during welding; and it is ensured that the welding device can achieve high-quality welding on the pressure pipeline.

The utility model belongs to the technical field of welding equipment, and discloses a pipeline welding equipment, including a base frame, a supporting device, a lifting chuck device and a welding device, wherein the base frame is provided with supporting rails along its length direction; a plurality of supporting devices are slidably arranged on the supporting rails, and are used to support the horizontal pipeline workpiece, and the pipeline workpiece can rotate freely on the supporting device; the lifting chuck device is arranged on the base frame and located at one end of the supporting rail, and is used to clamp the end of the pipeline workpiece and drive the pipeline workpiece to rotate a set angle, and the clamping height of the lifting chuck device is adjustable; the welding device includes a mobile platform slidably arranged on the supporting rail, and a welding operation assembly is arranged on the mobile platform, and the welding operation assembly is used to extend into the pipeline workpiece and weld the inner wall of the pipeline workpiece. The pipeline welding equipment can be applied to pipeline workpieces of multiple sizes, reduces the welding difficulty, improves the welding efficiency, and ensures the welding quality.

The invention relates to the technical field of pipe welding, and discloses special welding equipment for an inner pipe connection type heat insulation oil casing, which comprises a welding table, a pipeline clamping mechanism is arranged at the top of the welding table, and the pipeline clamping mechanism comprises two rotating rings. During oil pipe machining, two oil pipes penetrate through the fixing rings to be connected, the electric telescopic rods drive the V-shaped clamping plates to clamp the oil pipes, and the driving motors enable the supporting rollers to support the oil pipes through the gears and the lead screws. The adjusting motor is matched with a related structure, so that the grinding wheel and the arc-shaped grinding piece are attached to oil pipes with different diameters. The grinding motor and the rotating motor work cooperatively to comprehensively grind the oil pipe, during welding, the oil pipe rotates at a constant speed to achieve uniform welding, and after welding, the grinding wheel and the arc-shaped grinding piece clean weld joints. In addition, in the polishing process of the equipment, a cleaning brush is driven to clean a polishing part through transmission of a gear and a chain, the polishing and welding quality is guaranteed, and the machining efficiency is improved.

The invention belongs to the technical field of welding equipment, and particularly relates to power pipeline welding equipment which comprises a workbench, bent pipe placing seats are symmetrically and rotatably mounted on the inner wall of the top of the workbench, connecting shafts are fixedly mounted at the bottoms of the bent pipe placing seats, and the outer walls of the connecting shafts are rotatably connected with the inner wall of the workbench; an adjusting gear is fixedly installed on the outer wall of the connecting shaft, and an automatic telescopic rod is arranged below the workbench. By means of the bent pipe placing base, the adjusting gear, the bent pipe fixing assembly and other structures, when a bent pipe and a straight pipe are welded, the bent pipe placing base rotates through cooperation of a toothed plate and the adjusting gear, then the angle of the bent pipe fixing assembly is adjusted, and the device is suitable for bent pipes of different angles; the bent pipe is fixed through the bent pipe fixing assembly, the effect of fixing the bent pipes at different angles is achieved, and the welding precision of the bent pipes and the straight pipes during welding is guaranteed.

The invention belongs to the technical field of welding equipment, and particularly relates to multi-axis rotary welding tool equipment and a welding method. The device comprises a fixing frame, the fixing frame is of an arc-shaped structure, and the two sides of the fixing frame are symmetrically and rotationally connected with a pair of clamping frames; the welding frame is of an annular structure, an annular guide rail is fixedly connected to the welding frame, a sliding seat is slidably connected to the annular guide rail, and a welding assembly is connected to the sliding seat; a gear ring is fixedly connected to the inner periphery of the annular guide rail, a first driving motor is mounted on the sliding seat, and a driving gear meshed with the gear ring is fixedly connected to a rotating shaft of the first driving motor; the lifting mechanism is fixedly connected to the fixing frame, a turnover mechanism is connected to the lifting mechanism and used for driving the welding frame to turn over, and the welding frame is connected with the turnover mechanism; by arranging the fixing frame, the welding frame, the lifting mechanism and the turnover mechanism, two coaxial pipelines can be welded, two vertical pipelines can also be welded, and the welding equipment has two automatic welding modes at the same time.

The invention discloses a clamping-adjustable metal pipe welding device, which belongs to the technical field of pipe welding, and comprises a main body mechanism for butting and welding metal pipes, and two adjusting mechanisms for adjusting the welding direction of the metal pipes are arranged on the main body mechanism; and a clamping mechanism for clamping the metal pipe is arranged on the adjusting mechanism. The arranged main body mechanism can automatically weld four butt joint faces of two metal pipes, meanwhile, the metal pipes with different splicing angles can be welded, the automation degree is high, and continuity is good; the adjusting mechanism can adjust the butt joint angle of the metal pipes, so that the device can weld the metal pipes with different postures and connection angles, and the application range is wide; the clamping mechanism can adjust the clamping position, so that the device can clamp metal pipes of different lengths, meanwhile, square pipes or round pipes of different sizes can be clamped, and use is convenient.

The invention belongs to the technical field of steel pipe welding, and particularly relates to a welding device for a large-diameter plastic-coated steel pipe, the welding device comprises a base, a support, a first air cylinder and a welding gun, the support is fixedly arranged at the top of the base, the first air cylinder is arranged on the support, the welding gun is fixedly arranged at the moving end of the first air cylinder, and the first air cylinder is arranged on the support. The two clamping mechanisms are arranged between the two sides of the top of the base and the two sides of the top of the support correspondingly, and the two clamping mechanisms can clamp and fix the two large-diameter plastic-coated steel pipes which are in butt joint; and the transverse moving mechanism is arranged at the top of the bracket. The PLC is used for controlling and coordinating actions of all the mechanisms, it is guaranteed that welding, cooling and smoke removal are conducted synchronously, the welding efficiency and the quality stability are improved, the problems that an existing welding device is insufficient in heat input regulation and control, a coating is prone to damage, and the working environment is poor are solved, and the corrosion resistance and the service life of the large-diameter plastic-coated steel pipe are guaranteed.

The invention relates to the technical field of pipeline welding automation, and discloses a pipeline multi-layer and multi-pass welding track self-adaptive planning method. The method comprises the steps that weld joint track poses, welding electrical parameters and temperature information are collected in real time, and a sliding time window data sequence is constructed; establishing an interlayer constraint model and a trajectory prediction model based on the sequence, and generating a plurality of trajectory deviation predictions through short-term recursive prediction and long-term sequence prediction; a residual error reciprocal weighted fusion strategy is combined with a welding seam forming quality evaluation function, fusion track deviation is obtained, and uncertainty is evaluated; the fusion deviation is superposed to an original planned trajectory, and a self-adaptive correction trajectory is generated through a multi-objective optimization model; and the welding robot is controlled to execute track correction and real-time feedback updating. According to the method, through dual-time scale prediction and trajectory-process parameter collaborative optimization, the problem of insufficient welding seam forming precision caused by lack of dynamic correction in traditional static planning is effectively solved, and the welding quality and efficiency are remarkably improved.

The invention relates to the field of steel pipe welding, and discloses a steel pipe welding device which comprises a workbench, a middle groove is formed in the middle of the upper face of the workbench, multi-directional limiting structures are arranged on the left side and the right side of the upper face of the workbench correspondingly, and U-shaped plates are fastened to the left side and the right side of the upper face of the workbench through bolts correspondingly; a pressing structure is arranged on the U-shaped plate, a rotating structure is arranged above the middle of the interior of the middle groove, abutting limiting structures are arranged on the two sides of the interior of the middle groove, and a collecting frame is arranged on the lower portion of the interior of the workbench. The steel pipes can be pressed on the multi-directional limiting structure, so that the steel pipes in different shapes can be directly limited and pressed, the operation is more labor-saving and convenient, the working cost is low, and the working efficiency is higher.

The utility model relates to the technical field of welding, and discloses an auxiliary device of a handheld welding machine, which comprises a base and a fixing disc, a limiting groove is arranged in the base, a limiting assembly is arranged on one side of the fixing disc, a first motor is fixedly connected to one side of the fixing disc, a worm is fixedly connected to the output end of the first motor, and a second motor is fixedly connected to the output end of the worm. A worm wheel is rotatably connected to one side of the fixing disc, the worm wheel is meshed with the outer wall of the worm, an arc-shaped groove is formed in the worm wheel, a supporting rod is arranged in the fixing disc, and the outer wall of the supporting rod is slidably connected to the interior of the limiting groove. According to the round pipe welding device, through cooperation of the fixing disc, the clamping blocks, the worm gear, the worm, the supporting rod and the first support, the effect of adapting to fixing of round pipes of different sizes is achieved, the problem that the round pipes move in the welding process due to the fact that only the round pipes are placed on a supporting table and are not convenient to fix is solved, and the welding quality of the round pipes is improved.

The auxiliary butt joint device for pipeline welding comprises a left connecting frame and a right connecting frame, the left connecting frame and the right connecting frame are fixed in a horizontal state, and a left butt joint assembly and a right butt joint assembly which enable two pipelines to be in butt joint are arranged on the opposite sides of the left connecting frame and the right connecting frame respectively. The left butt joint assembly and the right butt joint assembly each comprise a bottom frame body, an extrusion alignment assembly, a pressing driving assembly and a supporting adjusting assembly. The extrusion alignment assembly can push the two pipelines to synchronously move in the opposite directions, so that the problems of misalignment, non-uniform gaps and the like in the butt joint process of the two pipelines are avoided, the welding effect and the welding strength of the pipelines are improved, and manual butt joint by workers is not needed; the supporting and adjusting assembly enables the center lines of the two pipelines to completely coincide, workers do not need to adjust the positions of the pipelines in the working process, the labor intensity and the engineering cost are reduced, the working progress is accelerated, and the pipeline welding efficiency is remarkably improved.

The invention discloses hardware pipe welding equipment with high safety performance in the technical field of hardware pipe welding, which comprises a supporting unit comprising a base positioned at the bottom, two groups of supporting parts symmetrically arranged on two sides above the base, and threaded shafts correspondingly inserted in the center positions of the supporting parts in the vertical direction, the first driving motor is arranged on one side of the lower portion of the base, the workbench is arranged above the base in parallel, and the upper ends of the two sets of supporting components both penetrate through the workbench and extend upwards. A to-be-welded hardware pipe is stably clamped and fixed through the clamping unit, potential safety hazards existing in a hand holding mode are avoided, the safety performance of the device is improved, the clamping range can be correspondingly adjusted according to the use requirement, and the practicability is high. And the device can meet the working requirement for limiting and clamping hardware pipes of different sizes and specifications, the application range of the device is widened, and the use flexibility of the device is remarkably improved.

The invention discloses an automobile tubular part inner wall supporting type laser welding device and technology, and relates to the technical field of automobile tubular part machining, the automobile tubular part inner wall supporting type laser welding device comprises a pipe welding base, an inner wall self-adaption supporting unit and a vertical displacement adjusting assembly, radial guide bases are connected to the two sides of the pipe welding base, and a synchronous servo motor is installed on the outer side of the pipe welding base; an internal driving screw rod and a guide sliding rod drive a stroke frame and a bearing supporting plate to achieve radial positioning of the supporting unit, the inner wall self-adaptive supporting unit comprises a driving cabin and a synchronous power source, transmission is achieved through a lead screw, a transmission fluted disc and a vortex transmission cylinder, a sliding adjusting sleeve is pushed, a supporting rod drives an arc face attaching lining plate to open and attach to the inner wall of the tubular part, and the tubular part is fixed. A vertical displacement adjusting assembly is arranged in a frame supporting beam, a variable frequency motor and a fine adjustment motor drive a guide screw rod and a screw rod correspondingly, alignment of a laser welding head is adjusted, a welding slag collecting groove in the center of a base and a detachable storage box are convenient to remove slag, and the welding machine is suitable for welding of tubular parts of multiple specifications.

The invention discloses a large-diameter steel pipe butt welding device and method, and belongs to the technical field of steel pipe welding.The large-diameter steel pipe butt welding device comprises a welding mechanism, limiting mechanisms are arranged on the two sides of the welding mechanism, the welding mechanism comprises a supporting ring arranged between the two limiting mechanisms, and the bottom of the supporting ring is fixed to the top of a supporting seat; an annular rotating groove is formed in the inner circle of the supporting ring and connected with a sliding ring in a sliding fit mode, the sliding ring is fixedly connected with one side of a movable plate through a telescopic rod, and a welding gun and a grinding assembly are fixedly arranged on the other side of the movable plate. The problems that traditional large-diameter steel pipe welding is low in positioning precision and uneven in weld joint treatment are solved.

The utility model relates to the technical field of building construction, and discloses a portable welding device for green building construction, which comprises a bottom plate, the top of the bottom plate is provided with a rack, the top of the rack is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected with a welding gun. A machining table is fixedly connected to the position, located below the welding gun, of the top of the bottom plate, fixing plates are movably connected to the two sides of the machining table through adjusting mechanisms correspondingly, and clamping arc plates are movably connected to the opposite sides of the two fixing plates through clamping mechanisms correspondingly, so that the horizontal positions of the fixing plates can be adjusted through the adjusting mechanisms; according to the pipe welding device, by arranging the clamping mechanism, pipes with different lengths can be welded, the application range and practicability of the pipe welding device are greatly improved, the pipes with different inner diameters can be clamped through the clamping mechanism, and the application range and practicability of the pipe welding device can be further improved.

The invention relates to the field of pipeline welding. The invention discloses a pipeline welding robot, and aims to solve the problems that a small-diameter pipe, a large-diameter pipe and a conical pipe are not located on the same axis during splicing operation, so that deviation occurs in the welding process, and when a plurality of clamps are used for clamping a pipeline, when the pipeline is subjected to preheating treatment during welding, the pipeline cannot be damaged, and the welding efficiency is greatly improved. And the butt joint time is influenced when mutual rapid butt joint needs to be carried out, so that butt joint is carried out after pretreatment, and the welding part of the pipeline is influenced. The driving rod rotates to synchronously control the two expansion clamps to clamp a small-diameter pipe and a large-diameter pipe, it can be ensured that the axes of the two pipes are located on the same straight line and are consistent with the axis of the driving rod, and the problem of misalignment or eccentricity of the pipes is avoided.

The invention relates to the technical field of special-shaped steel pipe machining, in particular to a special-shaped steel pipe welding device which comprises a welding module fixedly installed on a bottom plate, the welding module comprises a fixing frame and a power box which are fixedly installed on the bottom plate, and a second electric push rod is installed at the top of the fixing frame and fixedly connected with the top of an upper cover through a hanging rod. A rotatable upper tooth part is installed in the upper cover, a lower cover matched with the upper cover is installed on the power box, a rotatable lower tooth part with the same structure as the upper tooth part is installed on the lower cover, electromagnets used for locking the corresponding upper tooth part and the lower tooth part are installed on the upper cover and the lower cover correspondingly, and a linear moving pair is installed on the upper tooth part through a connecting block. An extension plate is installed on a sliding block of the linear moving pair, a welding machine is installed at the end, away from the sliding block, of the extension plate through an electric rotary table, and a driving motor for driving the upper tooth part and the lower tooth part is installed in the power box. The device is high in automation degree and can adapt to special-shaped steel pipes with various sections.

The invention provides an intelligent pipeline welding method and system based on data decision, and relates to the technical field of intelligent pipeline welding.The intelligent pipeline welding method comprises the steps that a welding request is responded, a groove image of a to-be-welded pipeline is obtained through an active visual sensor, groove morphology characteristic parameters of the to-be-welded pipeline are determined based on the groove image, and the to-be-welded pipeline is welded according to the groove morphology characteristic parameters. Based on the groove morphology characteristic parameters, corresponding basic layer channel arrangement rules and reference process parameters are determined from a preset layer channel arrangement database, a welding process scheme matched with the current groove is generated in combination with the groove morphology characteristic parameters, and the current groove is welded on the basis of the welding process scheme. And the welding operation is executed in the groove of the to-be-welded pipeline, the technical problems that in the prior art, the global planning capacity is deficient, the deviation correction strategy is locally lagged, and the whole-process accurate control is insufficient are solved, and the effect of improving the stability and reliability of the welding quality of the pipeline is achieved.

The invention provides a pipeline welding all-position welding seam identifying and tracking system and method, and belongs to the technical field of pipeline welding automation. In order to solve the problems of strong arc light interference, low tracking precision, slow response speed and insufficient robustness in the existing pipeline all-position welding tracking technology, the system comprises a sensing layer, a processing layer, a decision-making layer and an execution layer. The welding seam identifying and tracking method comprises the following steps: S1, calibrating the welding seam identifying and tracking system; s2, all-position welding tracking is carried out; and S3, performing adaptive adjustment on different scenes. According to the method, dynamic weighted fusion and fuzzy PID control are adopted, multi-posture welding such as flat welding, vertical position welding, horizontal position welding and overhead position welding can be automatically adapted, parameters do not need to be manually adjusted, and the operation threshold is lowered.

The invention relates to the technical field of pipeline welding auxiliary devices, in particular to a water-cooled wall pipeline welding alignment auxiliary device and method.The water-cooled wall pipeline welding alignment auxiliary device comprises two semi-rings, the outer side walls of the semi-rings are provided with semi-circular sliding rings, the outer side walls of the semi-circular sliding rings are slidably connected with semi-circular sliding rails, and the outer side walls of the semi-circular sliding rails are fixedly connected with semi-circular bases; an adjustable clamping mechanism for clamping a water-cooled wall pipeline is installed on the outer side wall of each semi-ring, a detection mechanism is installed on the side, close to a pipeline groove, of one semi-circle base, and an opening aligning mechanism is installed on the outer side wall of each semi-circle base. When the semicircular seat is rotated, the round head of the detection mechanism walks on the water-cooled wall pipeline groove, in the process, the swing amplitude of the pointer represents the deviation degree of the circle center of the semicircular seat and the circle center of the water-cooled wall pipeline, if the swing amplitude is too large, the semicircular seat and the water-cooled wall pipeline are kept concentric through the adjustable clamping mechanism, and opening alignment positioning is achieved through the semicircular seat; and alignment deviation is reduced.

The invention belongs to the technical field of steel pipe welding, particularly relates to high-strength steel pipe welding equipment and process based on a laser-induced hybrid welding technology, and solves the problems of high interference degree and poor correction function in the prior art, the high-strength steel pipe welding equipment comprises a base, and the top of the base is fixedly connected with an outer gear ring and two symmetrically arranged clamping assemblies; a welding assembly is installed on the peripheral face of the outer gear ring and composed of an arc-shaped transmission frame and a limiting transmission frame, the outer gear ring is movably sleeved with the arc-shaped transmission frame, the limiting transmission frame is slidably assembled in the arc-shaped transmission frame, a laser induction head and a welding head are installed on one side of the limiting transmission frame, and the welding assembly is used for welding steel pipes. Through the arrangement of the outer gear ring, the arc-shaped transmission frame and other structures, the continuity and stability of circumferential welding are achieved, the problems of mechanical arm interference and the like are avoided, meanwhile, the adaptability of equipment to steel pipes with different pipe diameters is improved, frequent equipment parameter adjustment or clamp replacement is not needed, and the welding efficiency is remarkably improved.

The stainless steel pipe welding equipment comprises a base, a fixing mechanism is arranged on one side of the base, a supporting frame is fixedly connected to one side of the base, and a welding mechanism is arranged on one side of the supporting frame; the device has the beneficial effects that a first air cylinder can drive a first push rod to drive a welding gun to conduct lifting adjustment, so that the welding gun is attached to the surface of a steel pipe to conduct welding work, meanwhile, a draught fan on a purification box is started, and negative pressure is formed in an inner cavity of an exhaust fume collecting hood through the draught fan; smoke generated during welding is fed into the purifying box through the smoke collecting hood and the smoke collecting pipe for gas purification, the smoke collecting hood can improve the protection performance, and the problems that gas is diffused in the air due to the fact that welding equipment inconveniently and directly sucks and discharges the gas in the welding process, and the welding efficiency is improved are solved. And the environment and the bodies of surrounding people are affected, and the like.

The invention provides an auxiliary device for steel pipe construction welding, and relates to the technical field of pipeline welding, and the auxiliary device comprises two arc-shaped bearing bodies, an auxiliary main frame, an aligning mechanism and a rotary driving system. The central angle of the arc-shaped bearing body is larger than 180 degrees, automatic centering of the steel pipes is achieved through the outer pressing supporting rod assembly and the inner positioning supporting rod assembly, and it is guaranteed that the two sections of steel pipes are concentric. And the welding head mounting seat is connected with the rotary driving piece through the arc-shaped movable clamping body to drive the welding head to continuously rotate around a welding seam, so that high-quality girth welding is completed. The device solves the problems of low centering precision and poor efficiency in traditional welding, has the advantages of high automation degree, high stability, convenience in assembly and disassembly and the like, and is suitable for quick welding of municipal steel pipe engineering.