411 results about "Fillet weld" patented technology

The invention relates to a point cloud recognition method, device and equipment for automatic welding of a fillet weld of a lifting lug workpiece, and the method comprises the steps: obtaining a scene point cloud of an actual workpiece placement scene, and extracting an actual workpiece point cloud from the scene point cloud; according to the actual workpiece point cloud, a registration algorithm is adopted to calculate a target homogeneous change matrix of the actual workpiece point cloud and the template workpiece point cloud; correcting a preset scanning track of the actual workpiece based on the target homogeneous change matrix to obtain an adjusted scanning track; and according to the adjusted scanning track, welding seam area point cloud information is obtained, and welding seam points are recognized based on the welding seam area point cloud information and the straight line intersection point angle welding seam recognition method. According to the whole scheme, the welding seam point can be accurately recognized, and finally accurate point cloud recognition of automatic welding of the lifting lug workpiece fillet welding seam is achieved.

The invention provides an automatic scanning device for phased array ultrasonic detection of a fillet weld of a tube socket and an installation method. A pipe seat fillet weld phased array ultrasonic detection automatic scanning device comprises a rail, a crawling trolley, a sliding rod, a sliding assembly and a probe frame, the crawling trolley is movably installed on the rail, the sliding rod is installed on the crawling trolley, the sliding assembly is installed on the sliding rod in a sliding mode, and the probe frame is installed on the sliding assembly. The probe frame is installed on the sliding assembly, and an ultrasonic phased array probe and a wedge block are installed on the probe frame.

The invention relates to a welding pose track generation method of a workpiece fillet weld, a medium and equipment. The method comprises the following steps: acquiring a two-dimensional workpiece weld point; performing three-dimensional reconstruction on the two-dimensional workpiece welding seam points to obtain a three-dimensional workpiece welding seam point cloud; a plurality of geometric equations in the three-dimensional workpiece welding seam point cloud are extracted, track regeneration is conducted according to the geometric equations, and an initial welding track and key welding seam point coordinates are obtained; and attitude mapping is conducted according to the prior welding attitude and the key welding seam point coordinates, interpolation calculation is conducted according to the initial welding track, and a final welding pose track is obtained. The problems that in the prior art, the actual space pose of a workpiece cannot be sensed online, the three-dimensional contour of a fillet weld cannot be automatically recognized, and the motion trail of a robot cannot be generated in real time are solved.

The invention relates to the field of welding, and discloses a flat fillet welding intelligent planning method, a welding robot and a machine readable storage medium, and the method comprises the steps that the inner surface width of a to-be-welded target welding layer in a flat fillet welding head, the number of welding beads and initial welding parameters of each welding bead are determined; according to the number of welding beads of the target welding layer and the initial welding parameters of all the welding beads, the welding layer cross section area of the target welding layer and the welding bead cross section area of all the welding beads are determined; according to the inner surface width of the target welding layer, the ratio of the welding bead cross section area of the mth welding bead of the target welding layer to the welding layer cross section area and the preset forming compensation coefficient corresponding to the mth welding bead, the position offset corresponding to the mth welding bead is determined; and determining the position of the mth welding bead according to the position of the (m-1) th welding bead of the target welding layer and the position offset corresponding to the mth welding bead, wherein m is an integer greater than 1. According to the method, automatic and intelligent welding planning of the flat angle welding joint can be achieved, the welding planning efficiency is greatly improved, and practicability and adaptability are high.

The utility model provides a placement type fillet weld ultrasonic phased array detection automatic scanning device. The placement type fillet weld ultrasonic phased array detection automatic scanning device comprises a fixing plate, a detection mechanism and a fixing mechanism, notches are formed in the lower ends of the fixing plates; the detection mechanism comprises four limiting gears, a gear ring, a telescopic rod and a detection probe, the four limiting gears are rotatably connected to the fixing plate around the four corners of the notch, the gear ring is meshed with the four limiting gears, the telescopic rod is connected to the gear ring, and the detection probe is arranged at the movable end of the telescopic rod; the fixing mechanism comprises a mounting frame fixedly arranged on the fixing plate, two clamping jaws movably connected to the mounting frame, two transmission rods with one ends movably connected with the two clamping jaws in a one-to-one correspondence mode, and an electric push rod movably connected with the other ends of the two transmission rods. According to the embodiment, the detection probe is driven by the gear ring to surround the to-be-detected pipeline, so that the convenience of the device is improved. And the telescopic rod adaptively stretches out and draws back to ensure the consistency of the distance between the detection probe and the welding seam and improve the detection quality of the welding seam.

The invention discloses an aluminum alloy large-gap MIG welding method which comprises the following steps: firstly, determining the thickness position and the welding direction of a fillet weld of a to-be-welded workpiece, determining welding current according to the thickness of the to-be-welded workpiece, and continuously heating a molten pool by adopting a delay staying method in an arcing stage; s2, in the welding stage, switches of the robot and the MIG welding machine are turned on, and a MIG welding gun walking path program carried by the welding robot is compiled; an MIG welding gun carried by the robot swings in a Z shape and swings back and forth, a double-pulse scheme is adopted in the welding process specification, according to the welding current scheme, the welding current is determined according to the thickness of the aluminum alloy, the welding parameter of welding swing in the forward direction is small current, and the welding parameter of welding swing in the backward direction is large current; and after swinging of the welding gun is finished, the welding gun continuously moves for a certain distance, and the welding gun moves to a welding end point. Effective welding can be achieved under the working conditions of different thicknesses and large gaps, and the welding quality is improved.

The invention discloses a pressurizing double-layer corrugated pipe assembly structure of a parking seal for a nuclear main pump. The pressurizing double-layer corrugated pipe assembly structure comprises a soft ring seat, an inner corrugated pipe, an outer corrugated pipe and a base which are coaxially arranged. Two first open half-wave ends of the inner corrugated pipe are respectively welded on the inner convex rings on the soft ring seat and the base in a sealing manner; two second open half-wave ends of the outer corrugated pipe are respectively welded on the outer convex rings on the soft ring seat and the base in a sealing manner; a soft ring installation part is arranged on the side, away from the base, of the soft ring base, and the soft ring installation part and the soft ring base are coaxially arranged. The inner convex ring and the outer convex ring are used for converting a welding seam structure among the inner corrugated pipe, the outer corrugated pipe, the soft ring seat and the base into a butt welding seam from a fillet welding seam, through welding and detection are easy, and the quality and the sealing performance of the welding seam are guaranteed. The inner convex ring and the outer convex ring are used for solving the centering problem of the inner corrugated pipe, the outer corrugated pipe, the soft ring seat and the base in the welding process, the connecting position precision is guaranteed, and meanwhile the coaxiality of the inner corrugated pipe and the outer corrugated pipe is improved.

The invention relates to the technical field of phased array detection, in particular to equipment for phased array detection of tube socket fillet welds.The equipment comprises a bearing seat, equipment bodies are symmetrically and fixedly arranged on the bearing seat, display screens are installed on the equipment bodies, a retraction cavity is formed in the rear end of each equipment body, and a movable detection mechanism is installed in each retraction cavity; the mobile detection mechanism is inserted into the retraction cavity when not performing detection work and is protected through the retraction cavity, upper jacking blocks are symmetrically and fixedly arranged at the upper end of the equipment main body, a mobile protection assembly is borne on the upper jacking blocks, and the display screen is protected through the mobile protection assembly; the invention further relates to a phased array detection method for the fillet weld of the tube socket. The phased array detection method comprises the following steps: step 1, outward movement of the detection frame; 2, the perspective protection plate is far away; 3, positioning the bearing seat; and step 4, weld joint detection.

The invention provides a fillet weld recognition method and device. The fillet weld recognition method comprises the steps that point cloud information of a to-be-welded structure and two positioning assemblies is collected; converting to obtain the direction of the fillet weld, the posture direction of the welding gun and the starting point initial coordinate and the ending point initial coordinate of the fillet weld; on the basis of the initial coordinates of the starting point and the initial coordinates of the end point, point cloud information of two local areas is intercepted from the point cloud information of the structure to be welded, point cloud data analysis is conducted on the point cloud information of the two local areas, and actual coordinates of the starting point and actual coordinates of the end point are obtained; based on the starting point actual coordinate, the end point actual coordinate, the direction of the fillet weld and the posture direction of the welding gun, recognition of the fillet weld is completed; according to the method and device, the initial coordinates of the starting point and the ending point of the fillet weld are obtained through the point cloud information of the positioning assembly, local point cloud information is intercepted according to the initial coordinates for fine analysis of the point cloud data, the data processing operand in the point cloud data analysis process is greatly reduced, and therefore the fillet weld recognition speed is increased, and the recognition precision is improved.

The invention discloses a welding seam track identification method for impeller wrap angle welding based on point cloud data, and belongs to the field of machine welding seam identification, and the method comprises the following steps: carrying out filtering, down-sampling and clustering on original scanning point cloud; classifying the point cloud data through a region growing clustering algorithm; determining an optimal interception plane based on principal component analysis, and performing curve fitting on section data to obtain a preliminary main welding seam track; the main welding seam track is projected to a local approximate plane in a segmented mode, and accurate extraction of the main welding seam track is completed; and performing plane fitting and thickness calculation on the wrap angle surface, solving an intersection line in combination with an adjacent local approximate plane, calculating an intersection point of the intersection line and the main welding seam track, and finally generating a wrap angle welding seam track in combination with the direction of the intersection line and the wrap angle thickness. Through cooperative calculation of local plane projection and spatial intersection line solving, the whole process operation from recognition, planning to welding can be automatically completed, and unmanned intelligent welding in the true sense is achieved.

The invention discloses a stiff steel rib column welding seam detection device, and relates to the technical field of welding seam detection devices. A stiff steel rib column welding seam detection device comprises fixing rods, two ends of each fixing rod are respectively connected with a mounting rack, the fixing rods are symmetrically arranged on the mounting racks, and the mounting racks are connected to H-shaped steel; the sliding frame is connected to the fixing rod in a sliding mode, and a weld joint movable detection area is formed between the two mounting frames; by arranging the wave guide rail, the ultrasonic probe can automatically and transversely swing along a wave path, the welding seam detection effect can be improved for H-shaped steel, automatic spraying of a coupling agent can be achieved by means of design and linkage of the wave guide rail, and even by means of combination of the wave guide rail and the L-shaped scraping plate, the welding seam detection efficiency is improved. The effect of uniformly smearing the coupling agent in a wave path is achieved; and meanwhile, through the arrangement of the wave guide rail, whether the welded wing plate is bent and deformed or not can be automatically judged in the fillet weld detection process, and then the welding quality of the H-shaped steel is improved.

The present invention relates to a low-frequency eddy current-based thermal power plant drain pipe seat inner wall defect detection method. The method comprises: organizing and collecting data to determine the distribution and characteristics of crack defects in inner walls of drain pipe seats of pressure parts, so as to provide a theoretical basis for the next step of specimen manufacturing; determining a scanning mode and designing reference specimens having cracks, so as to configure the detection sensitivity by means of the reference specimens; by means of an eddy current penetration depth formula and the reference specimens, configuring a detection frequency, and performing parallel-line or grid-line scanning along a scanning path at fillet weld parts of pipe seats and at parts from fusion lines below fillet welds to fusion lines above butt welds; and introducing an equivalent method and a formula calculation algorithm, so as to perform defect quantification and position determination on the basis of the amplitude of trajectory curve signals. The present invention solves the problem of nondestructive detection of crack defects in inner walls of drain pipe seats of pressure parts in in-service thermal power units, and can effectively avoid pipeline leakage accidents caused by expansion of crack defects. The method is simple, safe, reliable and widely applicable.

The invention belongs to the technical field of welding seam detection, particularly relates to detection equipment and a detection method, and aims to solve the problem that the detection effect of the existing automobile part welding seam detection equipment on internal corner welding seams located on parts is poor, the following scheme is provided, the detection equipment comprises a tool table, and the bottom of the tool table is fixedly connected with two symmetrical supports; the upper side of the tool table is fixedly connected with a hanging bracket, an ultrasonic probe is arranged outside the hanging bracket, two symmetrical clamps are arranged above the tool table, and the same angle adjusting module is arranged outside the clamps. According to the detection equipment and the method thereof disclosed by the invention, the welding seam on the internal corner of the automobile part can be quickly and conveniently detected, and the welding seam on the internal corner of the part can be completely exposed by adjusting the angle of the part, so that the ultrasonic probe can be effectively attached to the welding seam; the device can fully detect the quality of the welding seam, and the detection effect is improved while the detection precision of the welding seam is ensured.

The invention relates to the technical field of welding detection, and discloses a method for detecting the performance of a high-strength steel fillet weld joint, a weld detection device comprises a mounting frame and two transmission threaded rods rotationally connected in the mounting frame, and the outer surfaces of the transmission threaded rods are in threaded fit with transmission blocks; according to the method for detecting the performance of the high-strength steel fillet weld joint, the plate is put into the mounting frame to be fixed and then welded, the ultrasonic weld joint detection mechanism is driven to move while welding is conducted, then the ultrasonic weld joint detection mechanism conducts grinding and weld joint detection on the welded plate, and the performance of the high-strength steel fillet weld joint is detected. Therefore, welding and welding seam detection after welding are carried out at the same time, the welding efficiency of steel is greatly improved, meanwhile, automatic detection is achieved, the welding seam detection efficiency after welding is improved, meanwhile, the welding seam and the surface of the steel are polished before detection, the influence of welding slag on detection is reduced, and the detection accuracy is improved.

The utility model relates to a spiral welded steel pipe with a combined structure and continuous production equipment thereof.The steel pipe is composed of an inner-layer steel pipe wall and an outer-layer steel pipe wall, the inner-layer steel pipe wall and the outer-layer steel pipe wall are formed by spirally rolling and welding an upper steel belt and a lower steel belt, a vertical steel belt is welded between the upper steel belt and the lower steel belt, and after a pipe body is manufactured through welding, a cavity is formed between the upper steel belt and the lower steel belt; the vertical steel belt is provided with a first welding seam which is formed with the upper steel belt and is positioned on the wall surface of the upper steel belt, the vertical steel belt is provided with a second welding seam which is formed with the lower steel belt and is positioned on the wall surface of the steel belt, and the first welding seam and the second welding seam are positioned inside the cavity. By means of the multi-welding-seam design, high-strength connection among the three parts is guaranteed, large mechanical loads can be borne, the stability and durability of the structure can be kept, secondary reinforcement is achieved through combination with vertical steel belt fillet welding seams, the strength of the welding seams is remarkably improved, and the welding seams which are not exposed are attractive.

The skeleton member includes a cut and a welded portion, and the cut is formed in the skeleton member and extends along the ridge line so that the ridge line is exposed. In addition, in the welded portion, the skeleton member is welded to the skeleton member along the cut along the ridge line by fillet welding. In this way, no welded portion is provided on the ridge line. Since the rigidity in the ridge line portion is higher than the periphery and the shared load is also large, it is possible to reduce cracking starting from the ridge line portion by not providing the welded portion in the ridge line.

The utility model belongs to the technical field of nondestructive testing, and particularly relates to a phased array scanning frame device for detecting plug-in fillet welds, which is characterized in that a clamping mechanism realizes the action of clamping a sliding plate to adjust the clamping thickness of a device; the moving mechanism realizes the action of adjusting the position of the phased array ultrasonic probe by the upper moving plate; and the angle adjusting mechanism realizes the action of rotating the bottom plate to adjust the angle of the phased array ultrasonic probe. According to the phased array scanning frame device for detecting the plug-in fillet weld, a clamping motor, an upper moving motor and a lower moving motor are synchronously controlled through a PLC, a clamping sliding plate is adjusted to enable the device to be stably connected to the surface of a detected workpiece, movement of an upper moving plate is adjusted, the position of a phased array ultrasonic probe is changed, and the angle of a rotating bottom plate is adjusted; the angle of the phased array ultrasonic probe for detecting the welding seam is changed, the elliptical track of the inserted welding seam is detected, and the technical problem that an existing scanning device cannot detect the elliptical track of the inserted welding seam is solved.

A mechanized welding system and associated methods are disclosed. The system includes a welding torch and a two-axis motion apparatus operatively connected to the welding torch and configured to move the welding torch in two independent axes of motion (e.g., X and Y) during an orbital welding procedure to produce at least one of a fillet weld or a groove weld on a workpiece. The system also includes a motion controller operatively connected to the two-axis motion apparatus. The motion controller is configured to control movement of the two-axis motion apparatus along the two axes of motion in a coordinated manner to continuously and simultaneously adjust the welding torch in a height direction and an oscillation direction with respect to the workpiece, while accounting for a physical work angle of the welding torch with respect to the workpiece, and without the two-axis motion apparatus having to be tilted with respect to the workpiece when the physical work angle is changed.

The utility model discloses a steel pipe shear key fillet weld profiling welding device, which relates to the technical field of welding devices and comprises a horizontal adjusting support, two groups of welding gun fixing sleeves are symmetrically arranged on the outer surface of the front end of the horizontal adjusting support, and welding guns are arranged in the welding gun fixing sleeves. A vertical sliding block fixing frame is arranged at the front end of the horizontal adjusting support, a rotary adjusting knob is arranged at the rear end of the vertical sliding block fixing frame, a gear is arranged below the rotary adjusting knob, a first LGB6 sliding block is arranged on the inner side of the vertical sliding block fixing frame, and a second LGB6 sliding block is arranged on the outer side of the first LGB6 sliding block. A horizontal guide rail fixing frame is arranged above the vertical sliding block fixing frame. According to the steel pipe shear key fillet weld profiling welding device, the steel pipe shear key fillet weld profiling welding device can be stably ridden above a reinforcing steel bar of a shear key through the arranged guiding profiling supporting wheel, and workers can conveniently conduct angle adjustment according to welding requirements through the arranged welding gun fixing sleeve and the arranged welding gun angle fixing bolt.

The invention relates to the technical field of nuclear power station welding seam detection, in particular to a measuring device and a measuring method for nuclear power station fillet welding seam nondestructive testing, the measuring device comprises a ruler plate, a sliding ruler and a stepped sliding groove, the main body of the ruler plate is a pentagon formed by cutting one corner of a square, and the inclined edge and the adjacent edge of the pentagon are arranged at 135 degrees; two sides, adjacent to the bevel edge, of the ruler plate are provided with stepped sliding grooves, the two stepped sliding grooves are perpendicular to each other in the same plane, the two stepped sliding grooves are in limited sliding connection with two sliding rulers respectively in the length direction, the opposite ends of the two sliding rulers abut against welding corners on the two sides of a T1 or H1 fillet weld respectively, and a marking line is carved at the outer side end of each sliding ruler. The ruler plate is provided with scales at the edges of the two stepped sliding grooves. The invention provides the measuring device and method for measuring the special fillet weld of the nuclear power station.

A fillet weld identification method based on image feature point iterative processing solves the problems of accuracy and robustness of weld identification, and comprises the step of respectively carrying out iterative processing on all fillet weld images with laser lines. The method comprises the following processing steps: carrying out angular point detection on a binary image, obtaining the initial position of an image feature point, segmenting the binary image into a group of regions, setting that each region has only one section of linear laser line, fitting a straight line in each region by using a least square method, and obtaining a linear model of the region; and determining the intersection point of the straight lines in the adjacent areas as a new image feature point, re-segmenting the image by using the new image feature point, carrying out iteration to identify and update the image feature point, terminating iteration when the change of the position of the image feature point is smaller than a specified threshold value, and splicing the welding path welding spots corresponding to all the image feature points into a line according to the image sequence. The method has the beneficial effect that the welding seam position can be identified more accurately. The method can adapt to subtle changes of the welding seam, and the robustness of an identification system is enhanced.

An automobile undercarriage part of the present invention has a welded joint formed by base steel plate,wherein the chemical composition of a weld metal contains, with respect to a total mass of the weld metal, by mass %, C: 0.02% to 0.30%, Si: 0.10% to less than 1.0%, Mn: 1.2% to 3.0%, Al: 0.002% to 0.30%, Ti: 0.005% to 0.30%, P: more than 0% to 0.015%, and S: more than 0% to 0.030%, the following formula (1A), formula (1B), formula (2), and formula (3) are satisfied, and slag in a toe portion of the fillet weld satisfies a formula (4).[Al]+[Ti]>0.05  Formula (1A)[Ti] / [Al]>0.9  Formula(1B)7×[Si]+7×[Mn]−112×[Ti]−30×[Al]≤12  Formula (2)2.0<[Si]+[Mn]  Formula (3)[Ti content on slag surface]>[Si content on slag surface]  Formula (4).

The invention provides an assembly line system for building a B-type cabin middle group sheet body. The assembly line system comprises a feeding unit, a laser cleaning and scribing unit, a friction stir welding plate splicing unit, a ray detection unit, an assembling and welding unit and a discharging unit which are connected in sequence. During construction, the bottom plate plates for splicing the bottom plate are hoisted to an assembly line one by one, the laser cleaning and scribing unit is used for cleaning and polishing a welding bead and scribing various mounting line indication lines, then the friction stir welding plate splicing unit is used for carrying out butt joint on the bottom plate plates one by one according to a plate splicing sequence, and the bottom plate of a middle group sheet body is synthesized; a butt welding seam of a bottom plate is subjected to flaw detection of the ray detection unit and then flows to the assembling and welding unit, T rows and rib plates are subjected to falling assembly according to the positions of an installation line and an indication line through the assembling and welding unit, fillet weld arc welding is carried out after assembly is completed, and finally discharging of a whole middle-group sheet body is carried out through the discharging unit.

The invention relates to the technical field of automatic welding, in particular to a self-adaptive intelligent welding system based on a dynamic coefficient model. The system comprises an information acquisition module used for acquiring point cloud data of a workpiece to be welded and extracting geometric and physical characteristics; the welding seam recognition module is used for judging the optimal welding seam type; the process parameter generation module is used for activating the single-channel fillet weld, multi-layer and multi-channel or groove welding sub-module through a process calculation agent and generating initial process parameters by utilizing a built-in dynamic coefficient model; the welding execution and feedback module is used for issuing a process instruction and performing real-time fine adjustment on voltage, current or speed based on a sensing signal linkage process coefficient; and the incremental learning module is used for continuously updating the model coefficient by analyzing the bias of the positive sample data packet. The full-closed-loop intelligent welding method solves the problems that traditional welding depends on a static expert database and cannot cope with assembly errors, complex heat accumulation and the like, and full-closed-loop intelligent welding from geometric perception to parameter generation and real-time correction is achieved.

The invention relates to the technical field of intelligent welding, in particular to a steel structure fillet weld intelligent identification method and system based on 3D vision, and the method comprises the steps: obtaining a point cloud data set of a workpiece, and extracting point cloud data of a weld region from the point cloud data set; dividing the welding seam area into a plurality of welding seam sub-areas, wherein one welding seam sub-area corresponds to one independent welding seam; carrying out welding seam coarse skeleton extraction on each welding seam sub-region, and carrying out merging processing on the welding seam coarse skeletons of which the distance between end points is smaller than a threshold value; and on the basis of the combined welding seam coarse skeletons, welding seam fine skeleton point set extraction is conducted, and a welding seam path expression is obtained based on welding seam fine skeleton point set fitting. The method solves the problem that an existing algorithm needs an operator to repeatedly adjust a threshold parameter according to experience, resulting in lack of adaptive ability, and solves the problems that the calculated amount is large, the speed is low and the real-time requirement of an industrial site cannot be met when the workpiece point cloud data is processed.

The invention discloses a large branch pipe streamline variable-diameter special-shaped sleeve for repairing and blocking a tee joint and a forming method.The large branch pipe streamline variable-diameter special-shaped sleeve for repairing and blocking the tee joint comprises a main pipe, a branch pipe is arranged on the side wall of the main pipe, and the two ends of the main pipe are symmetrically arranged relative to the axis of the branch pipe; one end, far away from the main pipe, of the branch pipe is connected with one end of the nipple; a straight pipe section is arranged at the end, away from the branch pipe, of the main pipe, and a reducing section is arranged at the position, between the straight pipe section and the branch pipe, of the main pipe. According to the special-shaped sleeve, the problems that an existing sleeve for repairing is large in welding workload, and fillet welds are prone to cracking are solved.

The invention discloses a phased array detection scanning method for a fillet weld of a connecting pipe of a pressure vessel. The method comprises the following steps: firstly, fixing a scanning frame on the surface of the connecting pipe through a magnetic adsorption device; then the relative position and angle between the probe and the weld joint are adjusted, so that the probe is aligned in the normal direction of the weld joint; the probe is tightly attached to the surface of the weld joint through the pressure assembly, and constant contact pressure is kept; then the scanning frame is manually pushed to rotate along the connecting pipe, and the probe is driven to move along the welding seam and conduct phased array detection; and finally recording probe position information in real time and synchronously storing the probe position information and detection data. Magnetic attraction positioning and an adjustable mechanical structure are combined, automatic detection of the fillet weld of the pressure vessel is achieved through the phased array multi-angle ultrasonic scanning technology, the system integrates the high-precision position recording function and the intelligent data analysis function, the detection efficiency and the result reliability are greatly improved, and manual operation errors are effectively reduced.

The invention discloses a wheel hub embryo weld grinding device for wheel hub processing, and relates to the technical field of grinding device. The invention comprises an operating table, an L-shaped plate is fixed on the left side of the top surface of the operating table, an electric motor is fixed on the left side of the top surface of the operating table, a chuck is fixed on the right side of the motor shaft, a short column is fixed in the middle of the right side of the chuck, a round hole is provided in the middle of the right side of the short column, two triangular ring frames are fixed on the right side of the top surface of the operating table, an electric telescopic rod is fixedly installed on the inner wall of the triangular ring frame, a horizontal plate is fixed on the left side of the telescopic end of the electric telescopic rod, and two sliding holes are provided on the left side of the horizontal plate. The invention limits the roller by a U-shaped guide rail, so that the grinding roller can be accurately moved to the wheel hub angle weld, thereby avoiding the problem that the grinding equipment is difficult to accurately grind the wheel hub angle weld, resulting in poor equipment use effect.

The invention relates to the technical field of exhaust pipe flange welding, and discloses an automobile exhaust pipe flange welding device which comprises a workbench body, a dust collecting assembly used for collecting smoke dust is arranged in the workbench body, and a residue collecting mechanism used for collecting residues is arranged in the dust collecting assembly. An alignment assembly used for positioning a pipeline and a flange is arranged in the workbench body, the universal pipe can be matched with the adjustable dust collection cover, the exhaust fan and the water tank, and smoke dust can be guided into water through the dust guide pipe to be precipitated; slag collecting cloth is hung on a positioning hook to achieve solid-liquid separation, filter cloth intercepts residual smoke dust, welding slag falls into a water tank through a slag feeding hopper to be cooled, a net plate and a storage frame are subjected to solid-liquid separation, a handle is used for rapid extraction, a force application wheel drives a rubber belt to drive a pipeline to rotate, and no-dead-corner welding seams are achieved through rotary welding. And the pipeline is prevented from deforming due to hard contact when the pipeline is clamped again through the softness of the rubber belt.

The invention relates to the technical field of truss welding, and discloses an anti-seismic prestress loading welding device for a supporting fillet weld between plant columns, the two anti-seismic prestress loading welding device are symmetrically arranged, each anti-seismic prestress loading welding device comprises a driving mechanism and a welding mechanism, each welding mechanism comprises a machine shell, and one end of each machine shell is symmetrically connected with two mounting plates in a sliding mode; the two mounting plates are jointly provided with an attaching assembly, the other end of the machine shell is connected with a driving mechanism, the attaching assembly comprises a fixed plate, the fixed plate is rotationally connected with the mounting plates through short rods, the fixed plate is rotationally connected with a movable plate, the movable plate and the fixed plate are jointly connected with a centering positioning assembly, and the centering positioning assembly is provided with a welding gun. The prestress loading welding device for the supporting fillet welds between the anti-seismic plant columns can effectively solve the problems that in the prior art, when diagonal web members in a large truss are symmetrically welded, the welding difficulty of acute-angle and obtuse-angle fillet welds at the connecting positions of the diagonal web members and chord frames is large, and the welding quality is difficult to guarantee.