27045 results about "Welding" patented technology

The invention, which relates to the industrial circuit board monitoring technology field, discloses an industrial circuit board operation abnormity monitoring system comprising a multi-sensor welding spot data acquisition module, a signal processing module, an element welding spot mechanical fatigue monitoring module, a welding spot fatigue fault grading early warning module, and an early warning and response module. Data fusion is carried out on the acoustic emission sensor, the strain gauge sensor and the ultrasonic sensor, the state of the welding spot is monitored synchronously from three dimensions of stress acoustic emission, mechanical deformation and internal defects, the strain gauge sensor captures tiny deformation around the welding spot, and the ultrasonic sensor detects internal potential defects. The acoustic emission sensor senses stress release signals, the three kinds of sensor data are subjected to deep fusion analysis through the D-S evidence theory, the problem of misjudgment caused by one-sided information is effectively avoided, stress waves during crack propagation are captured through the acoustic emission signals, and faults can be diagnosed in time in combination with deformation data of the strain gauge sensor.

The invention provides a welding equipment state monitoring method and device based on artificial intelligence, relates to the technical field of artificial intelligence and data processing, and obtains a vibration data flow corresponding to target welding equipment by collecting vibration signals generated in the operation process of the target welding equipment in real time. And time-frequency energy distribution corresponding to the vibration data flow is determined, and energy changes of the signals in two dimensions of time and frequency are revealed, so that the signal-to-noise ratio of the signals is enhanced, non-correlation frequency band interference is reduced, early fault signals are enhanced, and the sensitivity of the model to abnormal events is improved. Rapid change features and stable structure features in the to-be-identified data are extracted by adopting a preset dynamic gating attention mechanism through a deep residual neural network, so that the rapid change features and the stable structure features can be distinguished and weighted, and the sensitivity of the model to abnormal events (such as early fault impact) is improved; therefore, accurate equipment state analysis is carried out on the welding equipment.

The invention relates to an intelligent visual identification technology-based cold solder joint microcrack intelligent discrimination method, which comprises the steps of collecting an initial RGB image of a to-be-detected welding spot, carrying out two-dimensional discrete cosine transform and inverse two-dimensional discrete cosine transform on the initial RGB image to obtain an enhanced image, and fusing the enhanced image with an R channel of the initial RGB image to obtain a fused image; forming a dual-channel feature map; calculating the phase consistency of the dual-channel feature map, and obtaining a suspected candidate region of the pseudo soldering microcrack through an adaptive threshold segmentation method; acquiring an RGB image sequence of a continuous time sequence of the welding spots, and performing anomaly detection to obtain an abnormal region set; and constructing a welding spot thermal diffusion model, and inputting the geometric parameters and the environmental parameters in the abnormal region set into the welding spot thermal diffusion model to obtain a final judgment result of the pseudo soldering microcracks. According to the method, through multi-dimensional feature fusion and continuous time sequence dynamic tracking, the detection precision of the pseudo soldering microcracks is remarkably improved, the false detection rate is reduced, and the final judgment result is more accurate.

The invention provides a high-precision intelligent welding system adapting to complex working conditions, and relates to the technical field of laser welding. The high-precision intelligent welding system adapting to the complex working conditions comprises the steps of S1, based on a high-resolution visual sensor and a laser scanner, S2, based on preprocessed point cloud data, S3, based on a workpiece three-dimensional model, S4, based on an optimized welding path and a material attribute database, S5, based on a dynamic welding parameter set, S6, based on a real-time welding track, and S7, based on multi-sensor monitoring data. S8, based on a defect detection report; and S9, based on a repaired welding result and historical welding data. According to the invention, the geometric data of the workpiece are collected through the high-resolution visual sensor and the laser scanner, the filtering algorithm is applied to remove noise to generate high-quality point cloud data, and a subsequent processing foundation is laid; workpiece features are identified by using a point cloud processing algorithm and a machine learning method based on the point cloud data, and an accurate digital model is generated through a three-dimensional reconstruction algorithm.

The utility model provides an angle steel tower foot welding processing platform, and relates to the technical field of welding processing platforms, the angle steel tower foot welding processing platform comprises a workbench, the top of the workbench is fixedly connected with a fixing assembly, and the top of the fixing assembly is fixedly connected with a plurality of limiting assemblies; the fixing assembly comprises a fixing frame, a plurality of mounting grooves are formed in the top of the fixing frame, and threaded rods are rotationally connected to the inner surfaces of the mounting grooves. According to the utility model, through the cooperative use of the first handle, the threaded rod, the guide rod, the moving block, the clamping block and the mounting groove, not only can the tower foot bottom plate be fixed, but also the limiting assembly can be driven to move synchronously, and then through the cooperative use of the second handle, the bidirectional screw rod, the clamping plate, the auxiliary rod and the limiting frame, the tower foot bottom plate can be fixed. And the cross-shaped tower frame on the tower foot bottom plate is clamped and fixed, so that the tower foot bottom plate and the cross-shaped tower plate are conveniently welded after being fixed, and the welding efficiency of the tower foot is improved.

The invention discloses a method for improving deformation uniformity of a core wire of an NbTi superconducting wire, and belongs to the technical field of superconducting wire processing. The method comprises the following steps: performing deep hole drilling on an oxygen-free copper ingot rod, then assembling, welding and extruding the oxygen-free copper ingot rod and a single-core rod to obtain a composite rod, and performing multi-pass drawing on the composite rod to obtain the NbTi superconducting wire with high performance, low loss and high N value. The Jc of the prepared NbTi superconducting wire is 2880-3120 A / mm < 2 >, the loss is 450-550 mJ / cm < 3 >, the N value is 70-95, compared with a superconducting wire prepared through a conventional process, the N value is remarkably increased, the loss is remarkably reduced, the critical current density is increased, and the NbTi superconducting wire has wide application prospects in MRI magnets.

The invention discloses gyrotron part assembly automatic production equipment which is characterized by comprising a feeding robot, a feeding tool magazine, a part material table, an assembly platform, a press pressing mechanism, a discharging robot and a discharging tool magazine. The feeding robot is matched with the multiple feeding clamping jaw assemblies to place gyrotron parts on the assembling platform according to the assembling sequence. The pressing machine pressing mechanism is used for applying preset pressure to gyrotron parts in the assembling process and forming preassembled gyrotron parts, and the discharging robot conducts welding flux feeding on the gyrotron parts in the assembling process through the multiple welding flux suction assemblies and conducts discharging on the assembled gyrotron parts. The whole gyrotron part assembling automatic production equipment can automatically assemble gyrotron parts and feed welding flux, the requirement of automatic production can be met, efficient and automatic assembling of the gyrotron parts is achieved, traditional manual gyrotron assembling is replaced, and the assembling efficiency and the assembling precision of the gyrotron parts are improved.

The invention relates to the technical field of excavator cab door frame welding, in particular to an excavator assembly welding robot which comprises a support table, an outer frame fixedly connected to the upper portion of the support table and a welding mechanical arm installed on the side portion of the support table. A first self-clamping assembly used for automatically centering, adjusting, clamping and limiting an excavator door frame vertical beam is arranged in the middle of the upper end face of the support, and a second self-clamping assembly used for automatically centering, adjusting and clamping an excavator door frame cross beam is arranged on the rear portion of the support. A linkage assembly used for sequentially triggering the moving assembly, the second self-clamping assembly and the first self-clamping assembly to operate so that a vertical supporting column, a cross beam, a vertical beam and an L-shaped supporting column section in an excavator door frame can be spliced together is jointly arranged between the support and the pushing assembly. Rapid and accurate splicing and undisturbed turn-over welding of the door frame component of the excavator are achieved through a linkage clamping and overall turn-over structure, the splicing size consistency and welding precision are remarkably improved, and meanwhile the welding efficiency and the process continuity are improved.

The invention provides a stirring friction machining device and a welding, material adding and energy control method. The stirring friction machining device comprises a spinning sleeve and a rotation driving assembly, a rotating spinning screw is installed in the spinning sleeve, the rotation driving assembly drives the spinning screw to rotate through a cutter handle, and a stirring component is arranged at the bottom end of the spinning screw; the outer side of the spinning sleeve is coated with an electromagnetic resistance composite coil with adjustable current and frequency, a feeding port and / or a shredding port are / is formed in the side wall of the spinning sleeve, and variable magnetic field intensity is excited through the electromagnetic resistance composite coil according to the electromagnetic induction principle; according to the invention, accurate adjustment of heat input of a tool is realized by adjusting current in a staying starting stage, the problem that a feeding channel is blocked by hardening of materials after short staying during material adding or welding is solved, and composite stirring of metal in a deposition edge area is realized by adjusting the magnitude and frequency of the current as a dominant electromagnetic force. And meanwhile, the temperature distribution characteristics of the acting area are locally adjusted, the interface bonding strength is improved, and the residual stress of the additive component is relieved.

The invention discloses an iron tower welding part displacement welding platform, and belongs to the technical field of welding equipment.The iron tower welding part displacement welding platform comprises a welding robot and a displacement adjusting mechanism which are arranged in adjacent positions, and a supporting mechanism used for supporting and placing an iron tower base is fixedly installed at the top of the displacement adjusting mechanism; an automatic positioning and clamping mechanism used for clamping an iron tower base is installed in the supporting mechanism, a rotary material changing platform is arranged on one side of the displacement adjusting mechanism, and an automatic lifting cantilever is further installed at the position, close to the front end, of the top of the rotary material changing platform. The automatic lifting cantilever is rotationally connected with an electromagnetic attraction suspension mechanism. According to the welding platform, the automatic positioning and clamping mechanism and the follow-up pre-adjusting mechanism are designed, so that the welding platform can automatically complete positioning and calibration and stable clamping and fixing of a welding part, manpower and material resources are saved, and meanwhile the subsequent welding precision and welding quality are guaranteed.

The invention belongs to the technical field of engine nacelle part production, and particularly relates to an intelligent welding system and method for an engine nacelle combined type air inlet fairing. An inner spoiler moving groove and an outer spoiler moving groove are machined in the air inlet duct casting blank borne by the air inlet duct positioning assembly through the inner cutting assembly and the outer cutting assembly correspondingly, and the air inlet duct casting blank is formed into an air inlet duct component; a first clamping feeding assembly, a second clamping feeding assembly, a third clamping feeding assembly and a fourth clamping feeding assembly are used for feeding an inner reinforcing part, a heating part, a noise reduction and sound absorption part preassembled with a spoiler assembly and an annular cover plate into a cavity of the air inlet channel component, and the fed parts are welded and fixed into the cavity of the air inlet channel component through a welding assembly; in this way, intelligent welding and assembling operation of the combined air inlet fairing can be achieved, and the combined air inlet fairing has the advantages of being high in structural strength, good in noise reduction and sound absorption effect and capable of achieving automatic deicing of the lip and air inlet distortion control.

The invention provides an IoTDB and AI collaborative driving welding robot parameter self-optimization method, which comprises the following steps: performing data alignment processing on an obtained original data set of a welding robot, generating time-space alignment features, and storing the time-space alignment features in an IoTDB time sequence database; performing cross-modal feature fusion and quality prediction through a pre-trained neural network based on all space-time alignment features in the I oTDB time sequence database, generating a quality prediction value, and writing the quality prediction value into the I oTDB time sequence database; and on the basis of the current space-time alignment features and the corresponding quality predicted values in the IoTDB time sequence database, optimized welding parameters are generated through an incremental reinforcement learning algorithm, and the optimized welding parameters are used for indicating the welding robot to conduct parameter adjustment. By adopting the method, the dynamic response capability and the process stability of intelligent manufacturing can be improved through long-term feature extraction of the time series data and collaborative optimization of an incremental learning mechanism.

The invention relates to the field of photovoltaic cell production, and discloses a main-grid-free photovoltaic cell series welding method and main-grid-free photovoltaic cell series welding device.The method comprises the steps that main-grid-free photovoltaic cell pieces and welding strips are conveyed to a pre-welding device, heating is conducted, so that the welding strips are pre-fixed to the surfaces of the corresponding main-grid-free photovoltaic cell pieces, and cell series arrays are obtained; synchronously transmitting the battery series and the back film layer to a heating and pressurizing device, and laying a front film layer on the battery series; and controlling the heating and pressurizing device to move to be in contact with the front film layer on the battery string, and heating and pressurizing the front film layer to obtain the battery string. The method comprises the following steps of: pre-fixing a battery piece and a welding strip, laminating, and heating and pressurizing a front film layer. During heating and pressurizing, a hold-down tool does not need to be placed on the front face, uneven heating is avoided, the problems of film bubbling and pseudo soldering are avoided, the welding quality can be guaranteed, and the conditions of pseudo soldering and grid breaking are reduced. And heating and pressurizing are carried out after pre-welding, so that the solder strip can be prevented from deviating.

The invention discloses an automatic production line control system and method for stamping and welding vehicle body parts, and relates to the technical field of vehicle body part production. The system comprises a welding robot module, an integrated visual detection module, an image processing server, a control PLC, a welding parameter regulator, a defective workpiece processing module, a data tracing cloud platform, a multispectral illumination module, a deep learning acceleration card and a welding spot temperature infrared sensor. On-line full inspection of the welding spot quality is achieved, the omission ratio is extremely low, and the integrated vision module maintains the imaging definition in a splashing environment through a nanometer coated lens and a piezoelectric self-cleaning technology; the multi-spectral lighting module solves the problem of reflective interference of an aluminum vehicle body, the defect recognition accuracy is high, the real-time closed-loop response is fast, the pseudo soldering recurrence rate is low through dynamic current compensation, the pneumatic marking positioning precision is high, accurate coordinates are provided for repair, the system supports high-speed detection of welding spots, and the high-beat requirement of a vehicle body part punching and welding automatic production line is met.

The invention discloses a low-creep polytetrafluoroethylene composite material and a preparation method thereof, the low-creep polytetrafluoroethylene composite material comprises the following raw materials by weight: 50-60 parts of polytetrafluoroethylene, 35-45 parts of perfluoroalkoxy resin, 15-25 parts of modified composite fiber, and 1-2 parts of a lubricant. Polytetrafluoroethylene and perfluoroalkoxy resin are blended according to a specific proportion to serve as a base material, a hot press molding process is matched, the core performance of the material is guaranteed, the molten perfluoroalkoxy resin can fully infiltrate and wrap the surface of the modified composite fiber under the driving of hot press pressure, and the performance of the composite fiber is improved. The composite material has the advantages that the composite material is high in mechanical strength, can form strong interface combination with PTFE (polytetrafluoroethylene) framework particles, can permeate and fill gaps of the PTFE framework particles, eliminates internal pores through a welding effect, and finally forms a highly-compact whole, so that the creep resistance of the composite material is remarkably improved.

The invention provides a visual detection system and method for positioning a welding spot of an injection molded part, and the method comprises the steps: obtaining the original image data of a workpiece, determining the actual position of the workpiece, and generating position deviation data based on the actual position of the workpiece and a preset reference coordinate; according to the position deviation data, calculating a workpiece position deviation and judging whether the workpiece position deviation exceeds a preset threshold range or not, if yes, dynamically adjusting a preset reference coordinate to obtain corrected coordinate reference information, and according to the corrected coordinate reference information, performing region division on the original image data to obtain a region division result; a target area where the welding spot possibly exists is locked in combination with the deviation influence area range to serve as a welding spot candidate area; and a welding spot feature pixel set is extracted from the welding spot candidate area according to the welding spot shape constraint condition and the screening rule, a preliminary recognition result of the welding spot is obtained, secondary filtering is carried out, and final welding spot position coordinate data is determined. According to the invention, through multi-stage accurate positioning and correction, the accuracy and reliability of welding spot detection are effectively improved.

The invention discloses a welding spot defect detection method and system, a storage medium and equipment, and belongs to the technical field of welding detection, and the method comprises the following steps: S1, obtaining welding spot data of a to-be-detected piece; s2, inputting the welding spot data into different preset convolutional neural network models, and respectively extracting shape features, color features and texture features of the welding spots; s3, fusing the shape features, the color features and the texture features of the welding spots by using a cross attention mechanism and a gated cross-modal attention mechanism; s4, inputting the fused feature information into a preset support vector machine model, dividing the welding spot data into a normal type and a defect type, and outputting a defect probability; and S5, inputting the welding spot data judged as the defect type into a preset defect classification model to judge the defect type of the welding spot. According to the method, deep coupling of shapes, colors and textures is realized through a gating cross-modal attention mechanism, the detection rate of coupled welding spot defects can be effectively improved, and the detection accuracy of welding spots is improved.

In a segmented ball valve for low noise and anti-cavitation applications, a replaceable cartridge is fixed inside and retained by stem and end post. The segment has a machined cylindrical bore with a slide-fit noise cartridge, enabling field replaceability with minor effort & without need of welding or fasteners. The replaceable cartridge also enables use of a fully cylindrical cartridge with greater pressure reduction stages compared to welded-on noise plates on the segment. The segment has a flattened front face resulting in lower Fd enabled by dual flow path in lower openings values thereby attaining higher noise attenuation where the cartridge is not required. The curved plates of the low noise and anti-cavitation cartridge enable: expanding flow resulting in non-impinging jet streams thereby achieving higher noise attenuation in one direction; and converging flow in the opposite direction resulting in reduction of flow energy, and the potential for cavitation for liquids.

The invention relates to the technical field of image data processing and intelligent control, and discloses a patch board spot welding track intelligent control method and system based on visual perception. According to the method, synchronous image streams are collected through a binocular vision sensor, and epipolar correction image pairs are generated through timestamp synchronization, ROI extraction and epipolar correction processing; calculating a disparity map by adopting a stereo matching algorithm, and constructing a compensated three-dimensional point cloud model based on deformation vector field fusion multi-frame point cloud data of a radial basis kernel function; welding spot position error vectors are generated by extracting welding spot feature points and performing spatial filtering optimization; and carrying out inverse kinematics calculation on the mechanical arm by adopting a damping least square method, carrying out safety constraint optimization in combination with prospective collision risk assessment and real-time pose data, and generating a trajectory compensation instruction. According to the method, the problems of dynamic deformation compensation and motion safety in patch plate welding are solved, the submillimeter welding spot positioning precision is achieved, and the welding quality stability and the system robustness are improved.

The utility model discloses a full-automatic tin soldering machine which comprises a tin soldering table, a tin soldering mechanism, a visual detection device, a tin breaking and supplying assembly and a dust removal device, workpiece guide rails are arranged on the tin soldering table, each workpiece guide rail is connected with a sliding table in a sliding mode, jigs are placed on the sliding tables, and workpieces to be welded are contained on the jigs. A first support and a second support are fixedly arranged above the tin soldering table, a first sliding rail is arranged on the first support, a second sliding rail is arranged on the second support, the first sliding rail is parallel to the second sliding rail, the first sliding rail and the second sliding rail are both perpendicular to a workpiece guide rail below, and a visual detection device is slidably connected to the first sliding rail. The visual detection device can identify and position the pin welding position on the workpiece, the second sliding rail is slidably connected with a tin soldering mechanism, the tin breaking and supplying assembly is connected to the side face of the tin soldering mechanism, and the dust removal device is arranged behind the tin soldering table. Whole-process automatic operation of welding spot positioning, automatic tin supplying and breaking and automatic tin soldering can be achieved, and the automatic tin soldering machine has the advantages of being stable and rapid in operation and high in safety.

The invention discloses a product model detection method and system based on welding spots. The method comprises the steps that a welding spot identification mark is obtained, a welding spot file matched with the welding spot identification mark is identified from a product model, and the welding spot file is a data file comprising a welding spot model; identifying a part model having an interference relationship with the welding spot model based on the position relationship of the welding spot file in the product model; taking an intersection surface obtained by intersecting the part models as a welding surface of the part models, projecting the welding spot model onto the welding surface to obtain a welding spot projection position, and detecting a shortest spot edge distance from the welding spot projection position to a welding surface boundary; based on the shortest point edge distance, the width of the welding face is determined through an auxiliary face intersection method; and detecting whether the product model is qualified or not based on the shortest point edge distance and / or the width of the welding surface. The technical problems that in the prior art, welding spot detection mainly depends on manual estimation, so that subjectivity is high, efficiency is low, and missing detection is prone to occurring are solved.

The invention relates to the technical field of automatic assembly, and discloses automatic circuit board welding equipment which comprises a welding mechanism, a clamping mechanism and a driving mechanism, the welding mechanism is provided with a wave soldering station, and the wave soldering station is used for conducting wave soldering on a passing circuit board; the driving mechanism comprises a driving belt, a guide rail, a driving part and a fixing frame, at least part of the fixing frame is located above the wave soldering station, the driving belt is arranged on the outer surface of the fixing frame in a sleeving mode, and the driving part is arranged on the guide rail. According to the automatic welding equipment for the circuit board, the driving belt and the guide rail are adopted for cooperative transmission, the guide rail and the driving belt are rigidly connected through the fixing frame, and a closed conveying groove is formed; the inner surface part of the guide rail and the outer surface of the driving belt form a guide space for the clamping mechanism to move along with the driving belt inside, and meanwhile rigid support is formed by means of the guide rail.

The invention relates to the field of batteries, and provides a battery box body, a battery and a power utilization device. The heat management plate body is welded to the frame, a containing space is defined by the heat management plate body and the frame, a heat exchange flow channel allowing heat exchange media to flow is formed in the heat management plate body, and the heat exchange flow channel comprises a water inlet and outlet part; the current collector is fixedly connected to the heat management plate body and arranged on the outer side of the containing space, a confluence runner communicating with the water inlet and outlet part is arranged in the current collector, and the current collector is welded to the frame; a first welding mark is formed between the heat management plate body and the frame, a second welding mark is formed between the current collector and the frame, and the first welding mark is connected with the second welding mark. According to the battery box provided by the embodiment of the invention, the heat management plate body and the current collector are respectively welded on the frame, so that the battery box has relatively good sealing reliability.

The invention discloses a five-axis hollow positioner device, which relates to the technical field of welding auxiliary equipment and comprises a rotating main body, an L-shaped positioner, a welding chuck and a chuck driving and clamping mechanism, the rotating main body comprises a main box body, a rotating base and a first slewing mechanism, and the main box body can rotate around the first slewing mechanism; the two L-shaped position changing machines are symmetrically arranged on the two sides of the main box body to form double stations, and welding and feeding are synchronous. The welding chuck is arranged on the L-shaped positioner through a third slewing mechanism and is used for clamping and driving the workpiece to rotate; the chuck driving and clamping mechanism controls the welding chuck to clamp / loosen; the device realizes five-axis movement, can flexibly adjust the welding posture of a workpiece, and eliminates welding dead angles; the double-station design improves the efficiency, the arc light prevention blocking screen guarantees the safety, the copper alloy clamping pad prevents the workpiece from being scratched, and the device is suitable for efficient welding of complex workpieces.

The invention discloses welding processing equipment for a new energy battery pack wire harness assembly, and particularly relates to the technical field of wire harness welding, the welding processing equipment comprises an equipment base, a conveying device is fixedly mounted at the top end of the equipment base, a sleeve device is arranged at the front end of the conveying device, and a feeding device is arranged on the side, close to the sleeve device, of the top end of the equipment base; a conveying device is arranged at the top end of the equipment base, a wire stripping device is arranged at the middle end of the conveying device, a welding device is arranged at the rear end of the conveying device, and a material conveying device is arranged on the side, close to the welding device, of the top end of the equipment base. And automatic feeding of the cable and automatic sleeving of the heat-shrinkable sleeve are achieved, and subsequent automatic laser welding machining of the cable is facilitated.

The invention belongs to the technical field of metal material forming, and relates to a high-strength plastic titanium-based composite material annular part and a preparation method and application thereof. The preparation method comprises the following steps: firstly, uniformly mixing titanium alloy powder and reinforced phase powder, then preparing an annular blank according to the technological process of smelting, plasma rotating electrode atomization, degassing seal welding, hot isostatic pressing and ring rolling, and finally, annealing the annular blank to prepare the target annular part. According to the method, the titanium-based composite material powder is prepared by replacing a traditional laboratory small-batch ball milling method with a large-batch mixing method, a vacuum induction melting rod manufacturing method and a plasma rotating electrode atomization method, a reinforced phase can be introduced into a titanium matrix crystal and uniformly distributed, and the method is suitable for industrial large-batch production requirements; the titanium-based composite material annular part is prepared through the technology of powder metallurgy blank making and thermal deformation, and the effects of shortening the machining period and improving the material utilization rate and the forming rate are achieved through the precise size of powder metallurgy forming and the high efficiency of special-shaped ring rolling.

The invention discloses a full-appearance detection method and system for welding flux of an internal wire of an automobile brake hose joint. The method comprises a multi-angle collaborative imaging step, a geometric defect detection step, a texture defect detection step, a dynamic fusion decision-making step and a fault-tolerant adjustment step. Images are collected through the cameras which are asymmetrically arranged in a surrounding mode and synthesized into a panoramic image, and detection blind areas are eliminated. The welding flux area can be fully covered, the defect detection precision and efficiency are improved, the adaptability to supplied material deviation is enhanced, and the method is suitable for full-appearance quality detection of the automobile brake hose connector internal wire welding flux.

The utility model relates to the field of clamps, and discloses a positioning device for flange joint welding processing, which comprises an operating table and a three-jaw chuck, the three-jaw chuck comprises jaws, the operating table is a square frame, the upper part and the lower part of the operating table are flat plates, the top of the operating table is fixedly connected with the bottom of a plane bearing, and the plane bearing is fixedly connected with the operating table. The upper portion of the plane bearing is fixedly connected with the bottom of a three-jaw chuck, the top of the operation table is rotationally connected with the three-jaw chuck through the plane bearing, the outer wall of the three-jaw chuck is fixedly connected with four fixing blocks, the four fixing blocks are evenly distributed on the outer wall of the three-jaw chuck, pressing plates are arranged on the tops of the fixing blocks, and adjusting holes are formed in the pressing plates. The top of the fixing block is in threaded connection with a pressing stud. According to the utility model, the three-jaw chuck and the pressing stud are matched with the pressing plate, so that the steel pipe and the flange can be stably fixed, and the position of the pressing plate can be adjusted according to the flanges with different sizes, so that the fixture is suitable for welding the steel pipes and the flanges with various specifications.

The utility model discloses a support for steel structure welding, and relates to the technical field of steel structure welding. The support for welding the steel structure comprises a welding table, two arc-shaped grooves are oppositely formed in the welding table, gear rings are movably arranged in the arc-shaped grooves, a plurality of electric push rods are installed on the inner sides of the gear rings, and the telescopic ends of the electric push rods are connected with clamping plates so that the steel structure to be welded can be conveniently clamped and fixed; a lead screw is arranged on the lower side of the welding table, a movable plate is arranged on the lead screw in a threaded mode, fixed rods are fixed between the movable plate and the racks on the two sides, under the action of the lead screw, the movable plate can be conveniently adjusted to move front and back, and the racks are driven to synchronously move in combination with the fixed rods; and therefore, the purpose of synchronously adjusting the two to-be-welded steel structures to rotate is achieved, welding operation can be conveniently carried out on the circle of the butt joint of the steel structures, workers do not need to turn over the steel structures, manpower is saved, and the welding efficiency is improved.

The invention discloses a clamping device for framework welding based on automobile seat production, and belongs to the technical field of automobile part welding equipment.The clamping device for framework welding based on automobile seat production comprises a bottom plate, a rotating mechanism is fixedly installed in the center of the top of the bottom plate, and two supporting mechanisms are installed on the rotating mechanism; the two supporting mechanisms are each provided with a plurality of framework clamping mechanisms, and the two supporting mechanisms are each provided with a plurality of spring clamping mechanisms. By designing the framework clamping mechanism and the spring clamping mechanism, a backrest framework and backrest springs can be quickly clamped, and two layers of backrest springs can be simultaneously clamped, so that the backrest springs are conveniently welded, and in the subsequent material taking process, the backrest framework can be quickly jacked up through the framework clamping mechanism; therefore, workers can conveniently take down the welded backrest framework.