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1697 results about "Welding torch" patented technology

Assembly multi-robot collaborative welding system in ship sections

The invention discloses an assemblage multi-robot collaborative welding system in ship sections, and relates to the technical field of industrial robot collaborative control, the assemblage multi-robot collaborative welding system comprises an industrial internet platform, the industrial internet platform is in communication connection with the following modules: a visual inspection modeling module, which is used for scanning the surface of a workpiece through a 3D camera, constructing a point cloud model, and establishing a point cloud model; matching the point cloud model with a design drawing, and identifying a deviation between an actual workpiece and the drawing; and the path planning and correcting module is used for planning a collision-free welding path in combination with the visual detection data and the motion range of the robot. Through high-precision visual inspection scanning and an SLAM matching algorithm, a workpiece point cloud model is constructed in real time and is accurately aligned with a design drawing, the welding seam position and the workpiece geometric deviation can be accurately recognized, a collision-free welding path is generated in combination with robot kinematics constraint and a safety boundary, it is ensured that the pose of the tail end of a welding gun is attached to the surface of the workpiece, and the welding quality is improved. Welding deviation is reduced, and process stability is ensured.
Owner:CHINA MERCHANTS JINLING SHIPBUILDING (JIANGSU) CO LTD +1

Welding robot with automatic positioning function

The invention provides an automatic positioning welding robot, and belongs to the technical field of automatic welding. Comprising a rack, the top of the rack is slidably provided with a portal frame, the top of the portal frame is slidably provided with a bearing frame, the top of the bearing frame is fixedly connected with a first electric push rod, the telescopic end of the first electric push rod is fixedly connected with a case, the bottom of the case is fixedly connected with a laser vision sensor, and the bottom of the case is provided with a mounting frame. The laser vision sensor is linked with the posture adjusting assembly and the transverse linear module, the problem that traditional automatic welding equipment cannot adapt to weld joint misalignment and gap changes is solved, the center position and the misalignment amount of a weld joint can be obtained before welding and in the welding process, and the welding quality is improved. The posture adjusting mechanism is driven to adjust the transverse position and the inclination angle of the welding gun, it is ensured that the arc of the welding gun is always accurately centered, the defects of undercut, incomplete fusion and the like caused by misalignment are effectively prevented, and the quality of a welded joint is improved.
Owner:CHANGZHOU HAIWEIER ROBOT TECH CO LTD

High-efficiency welding method for narrow gap of medium and thick plate through low-power pulse laser-induced enhanced double-TIG composite heat source

The invention relates to a low-power pulse laser-induced enhanced double-TIG (Tungsten Inert Gas) composite heat source medium-thickness plate narrow-gap efficient welding method, which adopts two independent TIG welding machines, a pulse laser and a wire feeder, and two TIG welding guns are positioned in a narrow-gap groove on the same side of a plane on which a laser beam perpendicular to the plate welding direction is positioned, the angle and distance of each heat source can be independently adjusted, before welding, the space angle and distance among the two TIG welding guns, laser beams and welding wires are adjusted, tungsten electrodes at the front ends of the two TIG welding guns and the laser beams emitted by a laser device are arranged in the corresponding space range, and a plate to be welded and the welding wires can obtain sufficient heat for melting, wetting and spreading; during welding, welding parameters are adjusted, the coupling plasma energy density in the narrow gap space range is controlled, and the droplet transition behavior of a welding wire and the flow characteristic of a molten pool are adjusted and controlled in real time. Compared with traditional arc welding, the welding process window can be improved, and the welding deposition efficiency is improved by more than 10 times.
Owner:DALIAN UNIV OF TECH

A welding actuator and a rail-mounted welding robot

The present application relates to a kind of welding actuators and track type welding robots, welding actuators include torch assembly, torch transverse angle adjustment assembly, torch swing assembly and torch vertical angle adjustment assembly, set torch transverse angle adjustment assembly, torch vertical angle adjustment assembly jointly drive torch assembly complete the quick and effective adjustment of relative angle of torch and the combined joint to be welded, set torch swing assembly can be small amplitude orderly swing to the welding wire in molten state, to meet the welding action demand and fully guarantee weld forming quality;Track type welding robot includes welding actuators, shell, track mechanism, walking mechanism, walking drive mechanism, lifting mechanism and reinforcing rib plate, can drive welding actuators to adjust welding position in horizontal direction and vertical direction, combined with different working condition requirements, can realize the functional requirements when carrying out structural member flat angle welding.
Owner:SHANGHAI SELFWELD ROBOT CO LTD

Thin plate punching device for automobile part machining

The invention relates to the technical field of automobile part machining, and discloses a sheet punching device for automobile part machining, which comprises a punching table, and further comprises a recycling hopper fixedly connected to the bottom of the punching table, and a rectangular hole is formed in the punching table and used for recycling punching leftover materials into the recycling hopper; the support is fixedly connected to the bottom of the recycling hopper and used for supporting the recycling hopper and the punching table; and the moving mechanism is arranged above the punching table and is used for moving a welding gun head mounted on the moving mechanism. The lower adjusting rod driven by the two-way threaded rod and the upper adjusting rod pre-tightened by the spring form'up-down elastic clamping ', and can automatically adapt to a thin plate; in the clamping process, the first spray hole and the second spray hole spray inert gas synchronously, local protective atmosphere is formed on the upper surface and the lower surface of the notch, oxidation ablation is reduced, the hole edge heat affected zone is reduced, and the precision requirement of the high-strength welding hole of the automobile is met.
Owner:JIANGSU AOTON VEHICLE IND CO LTD

Real-time collection method and system for welding heat input

The embodiment of the invention provides a real-time collection method and system for welding heat input, and the method comprises the steps: sensing the displacement movement of a welding gun or a welding wire through a diffuse reflection photoelectric switch array installed on the surface of a pipeline, and generating a corresponding pulse trigger signal; current data and voltage data of a welding loop are sensed through a Hall sensing system, and corresponding analog electric signals are generated; synchronously acquiring the pulse trigger signal and the analog electric signal through a multi-channel data acquisition device, and converting the analog electric signal into a digital signal with a timestamp; real-time welding speed data are calculated according to the time sequence of the pulse trigger signals and the preset space geometrical relation of the diffuse reflection optoelectronic switches; performing multi-stage filtering processing on the current data and the voltage data; a unified timestamp is determined, and time sequence matching is conducted on the filtered current data, the filtered voltage data and the filtered welding speed data based on the unified timestamp; and calculating to obtain a welding heat input value.
Owner:CHINA PETROLEUM PIPELINE ENG CO LTD +2

Intelligent planning method for welding path of welding seam

The invention provides an intelligent planning method for a welding path of a welding seam, and belongs to the technical field of automatic welding. The problem that in the prior art, the welding precision is not high is solved. The intelligent planning method for the welding path of the welding seam comprises the steps that a welding seam area is scanned, and three-dimensional point cloud data of the welding seam and a surrounding area are obtained; preprocessing the three-dimensional point cloud data to obtain optimized point cloud data; performing welding seam region segmentation on the optimized point cloud data, and extracting a point cloud set with welding seam geometric features; extracting weld center points from the point cloud set, and fitting the weld center points into a weld center line; a welding path is obtained based on weld joint center line planning; the welding gun carries out welding operation according to the planned welding path; and actual welding points of the welding gun are collected in real time, deviation calculation is conducted on the actual welding points and planned welding path points, and the movement track of the welding gun is corrected through a PID control algorithm and the calculated deviation value. The precision of the welding process is effectively improved.
Owner:ZHEJIANG QIANJIANG ROBOT CO LTD +1

Local sweat soldering device for curtain wall aluminum plate

The invention relates to the technical field of metal welding equipment, discloses a local hot melt welding device for a curtain wall aluminum plate, and aims to solve the problems that in the prior art, when a thin aluminum plate and a reinforcing rib are welded, fusion penetration, collapse and insufficient fusion depth are prone to occurring, and consequently the connection strength is not high. The device comprises a welding operation table, a supporting back plate, a clamping mechanism, a front limiting mechanism and a rear limiting mechanism, the front limiting mechanism and the rear limiting mechanism are arranged on the two sides of a welding gun, and the front limiting mechanism is provided with an inclined connecting part inserted into a welding seam and an arc-shaped bottom supporting strip and used for supporting a molten pool to prevent falling and guiding welding fluid to deeply fill so as to increase the combination area; the rear limiting mechanism trims a welding seam through the side edge of the notch and supplies protective gas, oxidation is prevented, heat dissipation is assisted, meanwhile, the device is provided with an angle limiting mechanism, the inclination angle of a welding gun can be accurately controlled, excessive heat concentration is avoided, the welding operation difficulty is reduced through structure optimization, and the welding efficiency is improved. And the welding seam quality, the connection strength and the safety and durability of the curtain wall structure are effectively improved.
Owner:ANHUI FURUIER ALUMINUM TECH CO LTD

Automatic welding device for various welding seams

The utility model provides an automatic welding device for various welding seams, and relates to the technical field of welding. The storage mechanism comprises a welding table, a welding auxiliary assembly and a rotary driving part, a Y sliding rail in the welding auxiliary assembly is arranged on the upper end face of the rack and extends in the Y direction, a mounting part is arranged on the Y sliding rail in a sliding mode, and a first driving part is in transmission connection with the mounting part; the welding table is arranged on the mounting part and can drive the mounting part to reciprocate in the Y direction, the welding table is used for containing a to-be-welded part and connected to the mounting part, and the rotary driving part is in transmission connection with the welding table to drive the welding table to rotate around the axis of the welding table. A connecting assembly in the welding gun mechanism is slidably connected to the Y sliding rail, a welding gun is used for welding a to-be-welded part and movably arranged on the connecting assembly, and the connecting assembly can drive the welding gun to move in the X direction and the Z direction. According to the automatic welding device for the multiple welding seams, welding of the multiple welding seams can be achieved, and the welding effect and the welding efficiency are guaranteed.
Owner:WAP INTELLIGENCE STORAGE EQUIPMENT (ZHEJIANG) CO LTD

TIG arc additive manufacturing system and manufacturing method for cross-structure metal components

The present invention discloses a TIG arc additive manufacturing system and method for cross-structured metal components. The system comprises a robotic system, an additive power supply, a digital wire feeder, and a welding torch mounted on the robot's distal end. The robotic system is communicatively connected to the additive power supply and the digital wire feeder, which delivers welding wire to the torch. This system and method can address the challenges of difficult path planning and quality control in the TIG arc additive manufacturing process for cross-structured metal components.
Owner:BEIHANG UNIV

Submerged arc welding machine for straight seam welding of steel pipe

The utility model relates to the technical field of steel pipe welding, in particular to a submerged arc welding machine for steel pipe straight seam welding, which comprises a steel pipe placing seat, a welding mechanism arranged on the rear side of the steel pipe placing seat, and a welding flux recovery mechanism comprising a recovery cover positioned on the upper side of the steel pipe placing seat. And a scraping plate for removing slag shells is fixed at the bottom of the inner wall of the recovery cover. A supporting plate in the welding mechanism drives a welding flux box, a welding gun and a welding flux recovery mechanism to move synchronously, slag shells formed by the welding flux are scraped in the moving process of a scraper, the procedure of independently cleaning the slag shells is omitted, the used welding flux is sucked into a recovery cover through a fan, then the used welding flux enters a processing box through a suction pipe, and the welding flux recovery efficiency is improved. Impurities in used welding flux are screened out through the filtering plate, the treated welding flux is pumped into the welding flux box through the discharging pipe by the conveying pump, synchronous circulating recycling of the welding flux is achieved, repeated conveying is avoided, and time is saved.
Owner:FOSHAN JIASHENGYE STEEL PIPE COMPONENT CO LTD

A Laser Ranging-Based Positioning and Correction Method for Steel Pipe Welding

This invention discloses a laser ranging-based method for positioning and correcting steel pipe welding, belonging to the field of steel pipe welding. The method includes: clamping and displacing the steel pipe to be welded to an automated welding unit using a robotic arm; acquiring an image of the steel pipe to be welded and locating the welding start point; activating a target laser rangefinder to spatially locate the welding start point and obtain welding position parameters; obtaining the welding torch position parameters of the welding robot; analyzing and generating the welding torch displacement trajectory; correcting the welding trajectory to obtain the welding movement path; and jointly controlling the welding robot to complete automated welding. This application solves the technical problems of insufficient positioning accuracy, difficulty in adapting to different entry angles, and weld seam offset caused by deformation during welding in existing technologies. It achieves the technical effects of improving the positioning accuracy of steel pipe welding, realizing automatic tracking welding of steel pipes entering at any angle, and real-time correction of the weld seam position during welding.
Owner:JIANGSU YUCHENG TITANIUM & NEW MATERIAL TECH CO LTD

Automatic welding machine for aluminum shell lithium battery

The invention relates to the field of automatic welding machines, in particular to an automatic welding machine for an aluminum shell lithium battery, which comprises a supporting mechanism, a multidirectional moving platform, a welding gun arranged on the multidirectional moving platform, a mounting cover arranged on the outer side of the welding gun, a bearing groove arranged on the mounting cover, and a lifting ring arranged in the bearing groove, the telescopic spring is arranged on the lifting ring; the smoke and slag treatment component comprises a negative pressure assembly arranged in the mounting cover, a filtering assembly arranged on the negative pressure assembly, a cleaning assembly arranged in the mounting cover and a dismounting assembly arranged on the cleaning assembly; the anti-blocking part comprises a guide assembly arranged on the mounting cover; according to the device, welding smoke and welding slag treatment can be integrated, the filter screen can be cleaned when the welding slag is cleaned, the smoke treatment effect is guaranteed, meanwhile, the welding slag can be prevented from splashing to welding gaps, and the welding effect is prevented from being affected by dust in the welding gaps.
Owner:JIANGXI MEITEXIN NEW ENERGY CO LTD

Welding tongs clamping device

The utility model discloses an electrode holder clamping device which comprises a fixing plate and a static arm fixedly connected to the fixing plate, and the end, away from the fixing plate, of the static arm is fixedly connected with a static electrode. A linear driving device is clamped between the fixing plates, the driving end of the linear driving device is connected with an electrode connecting rod, and one end of the electrode connecting rod is fixedly connected with a movable electrode; a guide pin is fixedly connected to the side wall of the electrode connecting rod, a guide groove is formed in the fixing plate, and the guide pin is inserted into the guide groove in a penetrating mode. The linear driving device comprises a connecting flange, a pin shaft is fixedly connected to the side wall of the connecting flange, an arc-shaped groove is formed in the fixing plate, the pin shaft is inserted into the arc-shaped groove in a penetrating mode, and the pin shaft swings along the arc-shaped groove in the welding process so that the moving electrode swings along with deflection of a workpiece to be kept coaxial with the static electrode. According to the utility model, the movable electrode and the static electrode are kept in a coaxial state before welding and during pressurized welding, so that welded workpieces are kept in good contact, and the welding quality is improved.
Owner:HEFEI SANYU ELECTRIC CO LTD

Automatic assembling and welding equipment for main frame of semi-trailer

The invention relates to the technical field of welding, and particularly discloses automatic assembly welding equipment for a main frame of a semi-trailer, which is used for performing assembly welding processing on a main longitudinal beam and an auxiliary longitudinal beam in the main frame and comprises a placing frame, a transverse moving unit, a longitudinal moving unit, a pressing unit, a welding unit and a guiding unit, the transverse moving unit drives the auxiliary longitudinal beam to transversely move, and it is ensured that the auxiliary longitudinal beam is accurately attached to the main longitudinal beam; a top pressing roller of the pressing unit applies vertical downward pressure to the auxiliary longitudinal beam, a side pressing roller applies lateral extrusion force, buckling deformation of the auxiliary longitudinal beam in the welding process is effectively restrained through the dual effects, the assembly straightness and relative position precision of the main longitudinal beam and the auxiliary longitudinal beam are guaranteed, and dislocation is avoided; the guide unit guides the welding gun head in real time based on the extending path of the V-shaped groove of the auxiliary longitudinal beam, it is ensured that the welding gun head always moves along a preset track in the welding process, and deviation is prevented. And the longitudinal moving unit is combined to drive the welding gun to feed at a constant speed, so that the centering degree and continuity of a V-shaped groove welding seam are effectively improved, and the welding quality consistency is guaranteed.
Owner:SHANDONG JIAMING INTELLIGENT EQUIPMENT CO LTD

Automatic welding robot capable of preventing welding slag from falling on workpiece

The invention relates to the technical field of welding equipment, and discloses an automatic welding robot capable of preventing welding slag from falling on a workpiece, which comprises a base, a mechanical arm arranged at the top of the base, a welding head arranged at one end, far away from the base, of the mechanical arm, and adsorption equipment and an adjusting assembly arranged on the outer side of the welding head, and the adsorption equipment is connected with the adjusting assembly. According to the automatic welding robot capable of preventing the welding slag from falling onto the workpiece, adsorption equipment is arranged, a lower cover covers the outer side of a welding brazing rod, in this way, during welding, a suction pump is started firstly, the splashed welding slag is guided by airflow to enter the lower cover from adsorption holes, then the welding slag flows out of an external connecting pipe, the welding slag can be collected, the welding slag is prevented from being splashed onto the workpiece, and the welding slag is prevented from falling onto the workpiece. And meanwhile, the cleaning assembly scrapes the welding slag attached to the inner walls of the lower cover and the covering channel, so that the welding slag can be continuously attached to the inner walls of the lower cover and the covering channel, and the collecting effect on the welding slag is enhanced.
Owner:NANTONG SULUDA INTELLIGENT MFG TECH CO LTD

Automatic welding equipment for end faces of spiral plates

The utility model discloses automatic welding equipment for the end face of a spiral plate, which relates to the technical field of welding, aims to solve the technical problem that the welding path of a spiral plate heat exchanger is single, and comprises a base, a rotating mechanism, a control operation cabinet, a cross module mechanism, a laser tracking sensor and a composite welding holder. The composite welding holder is composed of a bearing table, an indexing assembly and an execution assembly, the indexing assembly can provide two working modes of continuous rotation and intermittent rotation, and the execution assembly drives the welding gun to be overlapped on a reference spiral track to form a wavy spiral welding track and a bevel spiral welding track. Automatic welding of two kinds of high-performance welding seams is achieved through one set of equipment, the anti-fatigue advantage of a wave-shaped track and the high-strength characteristic of a bevel-shaped track are both achieved, stress distribution of the welding seams is effectively improved, and welding quality, efficiency and equipment universality are remarkably improved.
Owner:SHENYANG HAOBANG MACHINERY EQUIP CO LTD

Automatic welding equipment and method for steel bar ground pile cage

The invention relates to the technical field of photovoltaic supports, and discloses an automatic welding device and method for a steel bar ground pile cage, the steel bar ground pile cage comprises a steel bar and a plurality of triangular bent hoops arranged in the length direction of the steel bar, the steel bar correspondingly penetrates through three corners of the triangular bent hoops, and the automatic welding device comprises a welding platform; the fixing assemblies are arranged on the welding platform and used for clamping and fixing the steel bars and the triangular bent hoops; the moving mechanism is arranged on the welding platform; and the welding mechanism is arranged on the moving mechanism, the welding mechanism is provided with at least three welding guns, the moving mechanism can drive the multiple welding guns to move to the three corners of the triangular bent hoop correspondingly, the three corners of the triangular bent hoop are located on the outer side of the fixing assembly, and the welding guns are used for welding the triangular bent hoop and the reinforcing steel bars. The welding guns are driven by the moving mechanism to move to the three corners of the triangular bent hoop correspondingly, the triangular bent hoop and the reinforcing steel bars are welded, and therefore full-automatic welding of the reinforcing steel bar ground pile cage is achieved.
Owner:HEBEI UNIV OF ENG +1

Turbine blade wear-resistant layer welding path planning method based on point cloud processing

The invention provides a turbine blade wear-resistant layer welding path planning method based on point cloud processing. The method comprises the steps that firstly, a structured light camera and a welding robot tail end coordinate system and a conversion matrix of the welding robot tail end and a world coordinate system are determined through calibration; scanning the turbine blade by using a structured light camera to obtain original three-dimensional point cloud data of the turbine blade, and recording coordinates of a welding gun under a tail end coordinate system of a welding robot; performing point cloud filtering, Euclidean clustering and plane segmentation on the original three-dimensional point cloud data to obtain point cloud data of a to-be-welded surface; the point cloud of the surface to be welded is cut through a principal component analysis algorithm to obtain a preliminary path, a complete path can be obtained through straight line fitting and path logic sorting processing, and then coordinates of a welding gun in a coordinate system at the tail end of the welding robot and the complete path are substituted into a coordinate transformation matrix; coordinates of all the path points in the world coordinate system can be obtained, so that path planning is completed. According to the method, automatic path planning can be realized, and production efficiency is improved.
Owner:HARBIN INST OF TECH +1

Plasma arc welding equipment for automobile part machining

The invention discloses plasma arc welding equipment for automobile part machining, and relates to the related technical field of automobile part machining, the plasma arc welding equipment comprises a workbench, and the workbench is provided with a mechanical arm used for controlling a welding gun to move and a clamping mechanism used for clamping a composition pipeline of an automobile exhaust pipe; the number of the clamping mechanisms arranged on the workbench is two, the two clamping mechanisms clamp the two welded pipelines respectively, and a driving mechanism is further arranged on the workbench. When two sections of pipelines are welded, the two clamping mechanisms are driven by the driving mechanism to have the following strokes: a first stroke, the two clamping mechanisms respectively clamp and fix the two sections of pipelines; in the second stroke, the two clamping mechanisms get close to each other to drive the two ends, needing to be welded, of the two sections of pipelines to be in butt joint; and in the third stroke, the two sections of pipelines are driven to circumferentially rotate so as to assist the welding gun in welding operation.
Owner:XINGYE AUTO SPARE PARTS-MAKING CO LTD

Gas shielded welding machine for corner bracket production

The utility model relates to the technical field of welding machines, and discloses a gas shielded welding machine for corner bracket production, which comprises a movable seat, a welding machine main body is arranged at the top of the movable seat, and an adjustable push handle positioned on the left side of the welding machine main body is arranged at the top of the movable seat. A welding gun pipeline assembly located on the right side of the welding machine body and connected with the welding machine body is arranged at the top of the movable base. According to the gas shielded welding machine for corner bracket production, by arranging a welding gun pipeline assembly and a protection assembly, firstly, a threaded rod is rotated to drive a protection frame to move upwards, so that a winding roller is opened, a worker can wind a pipeline outside the winding roller at the moment, and the welding gun pipeline is clamped in a U-shaped clamping seat at the moment; and at the moment, a fastening bolt is screwed off to fasten and limit the welding gun pipeline, then the purpose of winding and unwinding the pipeline can be achieved, then a threaded rod is rotated to drive a protection frame to move downwards to protect the pipeline, the practicability of the device is improved, and the device is convenient to use by workers.
Owner:HUBEI SHENLIANG MACHINERY EQUIPMENT MANUFACTURING CO LTD

TIG torch tracking attachments for welding technique monitoring systems

Some examples of the present disclosure relate to tracking attachments that allow trackable markers to be easily attached to TIG welding torches, thereby removing the need for costly customized / modified TIG welding torches. In some examples, each tracking attachment includes one or more trackable markers that can be detected and / or tracked by a monitoring system. In some examples, the trackable marker(s) of the tracking attachment facilitate tracking and / or monitoring of welding technique by aiding in the tracking / monitoring of the position(s) and / or orientation(s) of the TIG welding torch during welding-type operations.
Owner:ILLINOIS TOOL WORKS INC

Welding torch head device, welding turntable and internal welding machine

The present application relates to a kind of welding torch head device, welding carousel and internal welding machine, internal welding machine is equipped with welding carousel;The welding carousel includes carousel body, carousel body is equipped with welding wire feeding structure and welding torch head device;The welding torch head device includes torch head, torch box and base, the torch head is connected with torch box by torch head adjusting device, and the torch head is moved by torch head adjusting device;The torch box is connected with base by torch box adjusting device, and the torch box is moved by torch box adjusting device;Base adjusting device drives base movement.The present application provides a kind of welding torch head device, welding carousel and internal welding machine, wherein each adjusting mechanism of welding torch head device is completely integrated and built-in in torch box, so that all structures are compact;Through torch box adjusting device, torch box only needs to carry out linear motion, avoids existing hinged rotating structure, reduces overall volume, also reduces the energy consumption required for this action;Adjust torch head by torch head adjusting device, so that torch head adjusting process is more stable and reliable.
Owner:LUOYANG DEPING TECH

Welding power supply extension module integrating arc voltage tracking and welding machine control functions and welding control method

The invention discloses a welding power supply extension module integrating arc voltage tracking and welding machine control functions and a welding control method, and belongs to the technical field of electric arc welding. In order to solve the problems that arc voltage tracking and welding machine control are mutually independent and cannot cooperate in real time in the existing TIG welding process, so that the welding process is tedious in operation and unstable in quality, the system comprises a core processor for executing an arc voltage tracking control algorithm and a welding parameter adjusting algorithm; the signal conditioning circuit is used for collecting and conditioning a current signal and a voltage signal output by the welding power supply; the welding power supply control module is provided with a plurality of interface circuits used for being connected with welding power supplies of different interface types; the core processor receives state information of the welding process through the high-speed communication module and generates a first control instruction used for adjusting output parameters of a welding power source and a second control instruction used for adjusting the height of a welding gun according to the state information and current signals and voltage signals collected by the signal conditioning circuit. The method is used for electric arc welding.
Owner:HARBIN WELDING INST LTD

Automatic welding control system and method for CRDM middle omega welding seam

The invention provides a CRDM middle omega welding seam automatic welding control system and method, and relates to the technical field of CRDM middle welding seam automatic welding. The automatic welding control system comprises a molten pool image module used for collecting molten pool images and obtaining the real-time width-depth ratio R of a molten pool; the arc voltage acquisition module is used for acquiring real-time arc voltage information; the wire feeding control module is used for controlling the wire feeding speed; the main control module is in signal connection with the molten pool image module, the data acquisition module and the wire feeding control module; wherein the main control module adjusts the height of the welding gun according to the real-time arc voltage information and the preset arc voltage information; the current is adjusted according to the real-time width-depth ratio R of the molten pool and the preset width-depth ratio Rmin of the molten pool; and controlling the wire feeding control module to adjust the wire feeding speed according to the adjusting current. High-precision adjustment of arc voltage, welding current, wire feeding speed and the like is achieved through closed-loop control, welding precision and welding quality are effectively improved, and high-precision welding of CRDM middle welding seams is achieved.
Owner:SUZHOU NUCLEAR POWER RES INST CO LTD

Groove-free welding seam identification method and system based on visual near-infrared image features

The invention relates to the technical field of welding, in particular to a non-groove welding seam recognition method and system based on visual near-infrared image characteristics, and the method comprises the following steps: collecting a near-infrared image of the back surface of a welding area, and carrying out the preprocessing of the near-infrared image; parallel processing is carried out based on the observed gap flash characteristic, the white light ray characteristic and the second-layer aperture contour, and three welding seam area characteristics of the gap flash characteristic, the white light ray characteristic and the second-layer aperture contour are obtained; a multi-feature fusion welding seam recognition method is adopted, the three welding seam region features are fused, and the final groove-free welding seam position is determined; and according to the finally determined position of the groove-free welding seam, the offset and the direction of a welding gun are calculated, a control signal is generated according to the offset and the direction, and an execution mechanism is controlled to adjust the position of the welding gun for welding. The method and the system provided by the invention can realize robust identification and accurate positioning of the groove-free welding seam, and the system has strong adaptability to different welding environments.
Owner:INNER MONGOLIA CHENGGANG PIPELINE TECH CO LTD +1

All-position welding device

The utility model discloses an all-position welding device. The all-position welding device comprises a welding track; the walking mechanism is movably arranged on the welding track; the arc pressing mechanism is connected with the walking mechanism; the welding gun mechanism is connected with the arc pressing mechanism, and the arc pressing mechanism is used for driving the output end of the welding gun mechanism to be close to or away from the to-be-welded part; the wire feeding mechanism is connected with the walking mechanism, and the wire feeding mechanism is used for conveying welding wires; the guide mechanism is connected with the welding gun mechanism, and the guide mechanism is used for guiding the welding wire to the welding position of the to-be-welded part; and the camera shooting mechanism is connected with the guide connector, and the camera shooting mechanism is arranged towards the welding position. Through the application of the all-position welding device, the all-position welding device suitable for pipeline welding is provided, the adaptable pipe diameter range is large, all the mechanisms of the all-position welding device are designed in a modularized mode, dismounting and mounting are convenient, the maintenance time and the replacement cost are reduced, and the overall weight of the all-position welding device is low.
Owner:CHINA NUCLEAR IND FIFTH CONSTR CO LTD

High-skill welder imitation GTAW fish scale welding system based on multi-sensor collaborative perception

The invention relates to the field of GTAW fish scale welding, in particular to a high-skill welder imitating GTAW fish scale welding system and method based on multi-sensor collaborative sensing. The invention provides a GTAW scale welding system and method for simulating high-skill welders based on multi-sensor collaborative sensing, and aims to solve the problem of how to realize the automation of a regular scale pattern forming technology presented by high-level welders in the GTAW welding process. The invention provides the GTAW scale welding system and method for simulating the high-skill welders based on multi-sensor collaborative sensing. Swing of a welding gun is controlled through a welding gun swing control method for simulating GTAW fish scale welding of a high-skill welder based on multi-sensor collaborative sensing. The swing frequency of a welding gun is controlled through a welding gun swing frequency control method for simulating high-skill welder GTAW fish scale welding based on multi-sensor collaborative sensing; filling of welding wires is controlled through a high-skill welder GTAW fish scale welding wire filling control method based on multi-sensor collaborative sensing; and the welding quality is controlled by using a multi-sensor collaborative sensing-based GTAW scale welding closed-loop control method for simulating high-skill welders.
Owner:XIANGTAN UNIV

Intelligent overturning and welding integrated production line for front end and rear end of container

The invention relates to the technical field of container welding, in particular to an intelligent overturning and welding integrated production line for the front end and the rear end of a container. Comprising a roll-over stand, a welding gun and a mechanical arm, two supporting columns are installed at the upper end of the overturning frame. Rotating plates are rotationally mounted on the surfaces, close to each other, of the two supporting columns; through cooperation of the support and the supporting plate, the supporting plate can clamp the front-end frame or the rear-end frame, so that in the process that the driving motor drives the rotating plate to rotate, the rotating plate can drive the front-end frame or the rear-end frame clamped by the supporting plate to rotate, and workers do not need to use assistive devices such as ropes and iron chains to assist in rotating or overturning of workpieces; in addition, the clamping area of the supporting plate on the front-end frame or the rear-end frame is large, so that stress points between the supporting plate and the front-end frame or the rear-end frame are evenly distributed, the deformation problem of the front-end frame or the rear-end frame is avoided, and the overturning stability of the front-end frame or the rear-end frame is improved.
Owner:GUANGDONG XINLIAN EQUIP CO LTD

Welding robot welding seam automatic extraction and path planning system

The invention relates to an automatic welding seam extraction and path planning system for a welding robot. The automatic welding seam extraction and path planning system comprises a three-dimensional model analysis module, an automatic welding seam extraction and feature calculation module, a welding key point and welding gun posture generation module, a path planning and reachability verification module and a data output and state management module. The welding seam automatic extraction and feature calculation module automatically identifies a welding seam based on a geometric topological relation and extracts geometric and topological features of the welding seam; the welding key point and welding gun posture generation module generates a welding path point, an arrival point, a departure point and a touch locating point according to the welding seam characteristics, and calculates a corresponding welding gun space posture; the path planning and reachability verification module performs multi-constraint verification on the executable performance of the welding path; and the data output and state management module is used for uniformly managing and outputting the welding path and the multi-state judgment result thereof. The system is high in welding path performability, high in adaptability to complex structures, high in system expandability, high in engineering efficiency and high in practicability.
Owner:FUDAN UNIVERSITY +1