22results about How to "High welding quality stability" patented technology

The invention provides a welding control method for manufacturing an electric tricycle, and relates to the technical field of intelligent welding, and the welding control method comprises the following steps: determining a plurality of adaptive welding parameters according to matching of a plurality of part features; optimizing the plurality of initial welding sequences according to the thermal evaluation function and the plurality of adaptive welding parameters by taking minimization of thermal influence as an expected condition, and outputting an optimal welding sequence; and according to the optimal welding sequence, the multiple adaptive welding parameters are sequenced to generate an adaptive welding parameter sequence, and welding control is conducted according to the optimal welding sequence and the adaptive welding parameter sequence. By means of the method, the technical problems that in an existing method, due to the fact that the matched part welding sequence cannot be set according to the structural characteristics of the electro-tricycle, the phenomenon of local thermal stress concentration is likely to occur, and the welding quality of the tricycle body frame is poor can be solved, thermal stress concentration can be effectively reduced, and the welding quality is improved. And deformation and cracks in the welding process are reduced, and the welding quality and the structural stability of the vehicle body frame are remarkably improved.

The utility model discloses a welding structure of a connecting pipe, which belongs to the technical field of pipeline connecting fittings, and comprises a pipe body and a seat body, the seat body is provided with an assembly hole, the assembly hole is provided with a positioning step, the pipe body extends into the assembly hole and is positioned on the positioning step, the outer wall of the pipe body and / or the assembly hole are / is provided with a flow guide groove for solder to pass through, and the flow guide groove is communicated with the seat body. The rear end of the pipe body and / or the positioning step are / is provided with interval grooves for solder to pass through, and the flow guide grooves are communicated with the interval grooves. According to the structure, the assembling stability of the pipe body and the base body can be improved, the side wall and the bottom between the pipe body and the base body can be filled with welding flux through mutual communication of the flow guide grooves and the interval grooves, the problems that in the prior art, the pipe body and the base body are prone to insufficient soldering, leakage and even disengagement are solved, and the service life of the pipe body is prolonged. And the finished connecting pipe can be judged to be qualified as long as the upper part and the lower part of the finished connecting pipe are welded and sealed, so that the production efficiency and the qualification rate judgment efficiency of the finished connecting pipe are improved.

The invention discloses a partition-optimized 0.1-0.4mm ultra-thin VC and a preparation method thereof, comprising an upper cover plate and a lower cover plate, wherein the upper cover plate is welded to the lower cover plate; the upper cover plate and the lower cover plate both comprise an evaporation section, an insulation section and a condensation section; the surface of the evaporation section of the upper cover plate is set as a super-hydrophilic cavity-shaped micro-nano structure, the surface of the insulation section is set as a super-hydrophilic equal-width groove micro-nano structure, and the surface of the condensation section is set as a super-hydrophobic conical micro-nano structure; the surface of the evaporation section region of the lower cover plate is set as a super-hydrophilic conical micro-nano structure, the surface of the insulation section region is set as a super-hydrophilic cactus-like wedge-shaped groove micro-nano structure, and the surface of the condensation section region is set as a super-hydrophilic conical micro-nano structure; the application also discloses a preparation method of the ultra-thin VC. The invention can not only optimize the vapor cavity structure and liquid cavity structure and volume distribution inside the heat pipe, but also ensure its good capillary water absorption performance and low water resistance and thermal resistance.

The application relates to the technical field of plasma arc welding, in particular to a positioning welding equipment and method for bridge steel structures, which mainly comprises a plasma arc equipment, a lifting mechanism is arranged on the plasma arc equipment, a horizontal moving mechanism is arranged on the lifting mechanism, the lifting mechanism can drive the horizontal moving mechanism to move in the vertical direction, and a translation mechanism is arranged on the horizontal moving mechanism. The movable welding frame length can be adjusted through the spliced joint head-to-tail insertion and length adjusting lever, different lengths of bridge steel structural members can be adapted, and the problem that the length of the traditional integrated welding table is unchangeable is solved; the movable welding frame is driven to overturn around the adjusting base plate through the deflection angle mechanism, the first positioning probe detects the inclination of the welding surface, the automatic adaptation of the inclination angle is realized, the complex operation of manually arranging the cushion block is replaced, the adaptation range covers steel structural members with different sizes and different inclination angles, the adaptation is better, and the limitation is smaller.

The application provides a strip steel welding control method and device based on an induction heating device, and belongs to the technical field of welding control. The method comprises the following steps: dividing a target strip steel welding area into multiple heating areas based on target strip steel specification data, and determining first welding control parameters of each heating area; welding the target strip steel welding area based on the first welding control parameters of each heating area; obtaining the temperature of the target strip steel welding area and the current of an induction heating coil during welding; calculating the temperature difference between the temperature of the target strip steel welding area and a target temperature, and calculating the current difference between the current of the induction heating coil and a target current; if the temperature difference exceeds a temperature deviation range and / or the current difference exceeds a current deviation range, adjusting the first welding control parameters of the target strip steel welding area to obtain second welding control parameters; and welding the target strip steel welding area based on the second welding control parameters. The application can improve the welding quality stability of the strip steel.

The invention discloses protective welding equipment for vertical butt joint of steel pipe columns, and relates to the field of protective welding equipment. The protective welding equipment for vertical butt joint of the steel pipe columns comprises a workbench, an angle adjusting device, a guide adjusting device, a guide device and a welding device, and through reasonable welding parameters and protective measures, the equipment can achieve accurate welding of the steel pipe columns. In general, the protective welding equipment for vertical butt joint of the steel pipe columns has very high practicability and adaptability. By fixing the steel pipe columns with different diameters and sizes, the equipment can realize vertical butt joint of the steel pipe columns with different angles and diameters, so that the machining efficiency is remarkably improved, and different machining requirements are met. By means of the design, the safety and stability of the welding process are improved, the welding quality is optimized, and vertical butt joint of the steel pipe columns becomes more accurate and reliable.

This invention relates to a gear welding device and method for a press, belonging to the field of press manufacturing. The technical solution is as follows: A gear welding device for a press includes a work platform with a ground rail. A transfer trolley is movably mounted on the ground rail to carry the gear to be welded. Positioners are mounted on both sides of the ground rail, each equipped with a rotatable gripper. A gantry frame is also mounted on the work platform, spanning the ground rail. A welding robot is movably mounted on the gantry frame, its movement direction being horizontal and perpendicular to the ground rail. The welding robot is equipped with a machine vision module. This solution, through the positioner grippers, can precisely achieve 180° rotation of the gear, providing a stable posture adjustment basis for double-sided welding. The welding robot, combined with the machine vision module, enables automated and high-precision acquisition of weld information, providing data support for intelligent welding path planning.

The invention discloses a metal goods shelf beam welding device which comprises a machine base, a clamping mechanism is arranged on the top face of the machine base, a welding mechanism is arranged on the top face of the machine base, an auxiliary mechanism is arranged on the surface of the clamping mechanism, a seam grinding mechanism is arranged on the rear side of the auxiliary mechanism, and a hydraulic cylinder is fixedly connected to the top face of the machine base. The left side of the hydraulic cylinder is fixedly connected with a clamping base, the surface of the clamping base is fixedly connected with a first fixing block, the bottom face of the first fixing block makes contact with the top face of the machine base, and the inner wall of the first fixing block is fixedly connected with an inclined block. The effect of inserting pins between the two cross beams is achieved, workpiece shrinkage and mechanical reversible deformation after welding and cooling are prevented, deformation and sinking after welding are effectively restrained through internal supporting and precise positioning, the weld penetration and structural compactness are improved, and the overall welding quality of the goods shelf cross beams is improved.

The invention discloses a welding penetration control method and system based on LabView, and relates to the technical field of welding process control. The method comprises the steps that a welding voltage signal in the welding process is collected; a LabView processor is used for conducting data format conversion, noise reduction processing and frequency domain analysis on the welding voltage signals, and the oscillation frequency of a molten pool is extracted; the oscillation frequency of the molten pool is compared with the critical penetration frequency in an expert database, and the penetration state of the current welding process is judged; and the welding system and / or the motion control system are / is controlled to execute corresponding control actions according to the judgment result, so that welding heat input is adjusted, and closed-loop control over the penetration state is achieved. The noise reduction treatment adopts a self-adaptive multi-scale correlation weighted generalized threshold wavelet noise reduction method, and the oscillation frequency of the molten pool is obtained through peak group proportion analysis. According to the method, online recognition and real-time regulation and control of the welding penetration state can be achieved, and the method has the advantages of being high in anti-interference capacity, stable in feature extraction and high in control precision.

The invention provides a friction stir welding method for aluminum-magnesium dissimilar alloy, which relates to the technical field of welding and comprises the following steps: step 1) placing a metal transfer layer between an aluminum alloy part and a magnesium alloy part; wherein the aluminum alloy part and the metal transfer layer form a first to-be-welded area, and a second to-be-welded area is formed between the magnesium alloy part and the metal transfer layer; (2) friction stir welding is conducted on the first to-be-welded area, so that the aluminum alloy part and the metal transfer layer are metallurgically bonded; and the second to-be-welded area is subjected to friction stir welding, so that the magnesium alloy part and the metal transfer layer are metallurgically bonded. According to the method, the metal transfer layer is added between the aluminum alloy part and the magnesium alloy part, the metal transfer layer is welded to the aluminum alloy part and the magnesium alloy part through double-pass friction stir welding, and intermetallic compounds are formed on the two interfaces of the aluminum alloy part-metal transfer layer and the metal transfer layer-magnesium alloy part respectively; and therefore, metallurgical connection is realized in the aluminum-magnesium dissimilar alloy joint.

The present application relates to the technical field of circuit board welding equipment, in particular to a kind of alignment welding device and method for circuit board processing, mainly including rack, the inside of the rack is equipped with welding frame, welding head is installed on welding frame, welding frame can drive welding head to move in space along left and right, up and down, front and back, welding head is equipped with visual positioning system, the below of welding frame is equipped with bearing table. Through the worm and gear motor driving of bearing table in carrying mechanism overturn, cooperate the double-station design of carrying mechanism, station and waiting position, without manual removal circuit board can complete double-sided welding turnover operation, avoid the secondary positioning deviation caused by manual turnover;Meanwhile, carrying mechanism can synchronously fix two circuit boards, when welding frame is welded to station circuit board, waiting position can synchronously complete discharging, feeding operation, greatly reduce the time loss of discharging and feeding, solve the problem of low efficiency of existing single-station equipment, realize continuous production, significantly improve the processing amount in unit time.

The utility model relates to aluminium material processing field especially relates to a kind of aluminium material welding precision positioning device, including mounting plate, first rest is provided on the left part upper side of mounting plate, adjusting rod is threadedly connected in the front side of first rest, first rest upper side is slidably connected with first clamping plate, first clamping plate is rotatably connected with adjusting rod, mounting plate right part upper side is provided with two support frames symmetrical in front and back, arc slot is opened in support frame, second rest is slidably connected between arc slot, adjusting piece is also threadedly connected on second rest, second rest is slidably connected with second clamping plate.The utility model is placed by the guide rail of arc slot and the realization of stepless precision adjustment of rest angle of driving assembly driving from gear, satisfy complex groove welding demand, while the two-way horizontal fine adjustment function of independent control's screw clamping mechanism is provided, ensure that weld alignment accuracy, overall significantly improve welding quality stability, reduce rework rate and improve production efficiency.

The application provides a robot welding path planning and obstacle avoidance method and system for complex workpieces, which comprises the following steps: extracting all welds from the workpiece, clustering the welds to obtain a weld grouping result; sorting the welds between each weld cluster and sorting the welds in each weld cluster to generate a welding path for each weld cluster; generating a welding sequence that meets process constraints; generating a safe transition path between the initial position of the welding gun and the first welding point of the welding sequence, between adjacent welds in the welding sequence, and between the last welding point of the welding sequence and the reset position of the welding gun, to obtain a complete welding path; and searching for an optimal welding path in the welding path in the minimum welding path comprehensive cost as the target. G The application solves the welding path planning problem under the combined action of multiple factors such as obstacles, differences in weld position distribution, and multiple process constraints. G The application solves the welding path planning problem under the combined action of multiple factors such as obstacles, differences in weld position distribution, and multiple process constraints.

A welding device for water conservancy construction projects includes a welding mechanism and a base. Two groups of large-diameter steel pipe supporting devices are arranged on the base. The two groups of large-diameter steel pipe supporting devices are symmetrically arranged and are respectively used to support and place two large-diameter steel pipes; each group of large-diameter steel pipe supporting devices includes a plurality of roller support seats, and all the roller support seats are arranged side by side at intervals; in summary, the present invention mainly includes a large-diameter steel pipe supporting device, a welding mechanism and a conveying and docking mechanism. The welding mechanism includes a welding trolley that can move along a circular track, and with the submerged arc welding technology, it can efficiently complete the welding between steel pipes; compared with traditional welding methods, the present invention saves the time of manually building and dismantling the welding platform, and also improves the quality and efficiency of welding. The improvement of the degree of automation also means less manpower requirements, reduces labor intensity, and improves the construction progress and safety of the entire project.

The application discloses a precision control sawing joint welding machine set and a welding method, which comprises a machine base, a telescopic air cylinder connected to the machine base through a support, a welding head connected to the telescopic air cylinder through a lifting plate, a support plate arranged on the machine base, a tooth rod installed below the lifting plate, a protective cover connected to the tooth rod through a driving assembly, and a monitor installed in the protective cover. The precision control sawing joint welding machine set and the welding method do not need an additional power source to control the protective cover, thereby reducing the problems of cost and energy consumption caused by the setting of a complex structure, the protective cover is convenient to block sparks, effectively avoids the harm caused by the splashing of welding sparks to operators, protects surrounding equipment from being damaged by sparks, improves operation safety, the auxiliary structure moves through a horizontal moving seat and a vertical moving seat, and precise welding is realized by cooperation of the monitor and the welding head, so that multi-directional adjustment of workpieces is realized and overall welding efficiency is improved.

A vacuum brazing clamp for a water cooling plate comprises an upper clamp and a lower clamp. The upper clamp comprises a clamp body with an upper opening and a lower opening and partition plates dividing an inner cavity of the clamp body into a plurality of containing cavities. The upper clamp and the lower clamp are oppositely arranged up and down; the water-cooling plate core body is arranged between the upper clamp and the lower clamp, and the water-cooling plate core body is fixed through the upper clamp and the lower clamp; the adjusting and positioning assembly is arranged in the accommodating cavity of the upper clamp; and the joint to be subjected to vacuum brazing and the brazing film are fixed by adjusting the positioning assembly and the water-cooling plate core body. The vacuum brazing clamp for the water cooling plate is reasonable in structural design, the water cooling plate core body, the connector and the brazing film can be fixed at the same time to achieve vacuum brazing at the same time, the welding energy efficiency is improved, the welding productivity is improved, the welding cost is reduced, and the welding quality stability is improved.

The utility model discloses a kind of stator welding devices for motor production, it is related to welding device technical field, including welding assembly, including support base plate, the top of support base plate is fixed with movable welding part, the top of support base plate is embedded with filter screen, dust removal component, set in the bottom of welding assembly, including dust collection part fixed in the bottom of support base plate, the side of dust collection part is fixed with limit part, the inner wall of dust collection part is movably connected with installation cleaning assembly.The utility model has the beneficial effect that through the cooperation of quick-release type filtering mechanism and linkage self-cleaning system, the maintenance efficiency and dust removal effect are significantly improved, the problems of complicated disassembly and cleaning lag are effectively solved, the cleanliness of welding environment is guaranteed, component damage caused by manual intervention is avoided, tool-free rapid maintenance and automatic cleaning function are realized, and the equipment reliability and welding quality stability are greatly improved.

The utility model relates to the technical field of brushless motor iron core and coil welding devices, in particular to a brushless motor iron core and coil welding device which comprises a controller, a gun cleaning and wire shearing mechanism, a water-cooling welding gun robot and a positioner mechanism. The gun cleaning and wire shearing mechanism, the water-cooling welding gun robot and the controller are sequentially arranged on the rear side of the positioner mechanism from left to right. The positioner mechanism comprises two sets of headstocks which are symmetrically arranged, a bearing seat assembly, a turnover motor and a positioner support, wherein the bearing seat assembly and the turnover motor are installed on the headstocks respectively, and the positioner support is rotationally connected between the bearing seat assembly and the turnover motor. The positioner support is of an I-shaped structure, the front side and the rear side of a middle rod are each connected with a set of overturning tin soldering plates through a rotating mechanism, and arc blocking plates are fixed to the upper side and the lower side of the middle rod. A plurality of coil sleeve fixing rods are arranged on the front side and the rear side of the overturning tin soldering plate, and iron cores are installed on the coil sleeve fixing rods. The device can be used for welding brushless motor iron cores and coils in batches, the production efficiency is improved, and the labor cost is reduced.

The invention discloses conveying equipment for intelligent welding of parallel coil pipes and a production line, and relates to the technical field of heat exchange pipeline machining equipment.The conveying equipment comprises a base table, a linearly-distributed conveying mechanism is arranged on a welding area on the base table, and the conveying mechanism comprises a path assembly and a conveying assembly; the driving assembly comprises a plurality of clamping wheel sets distributed in the length direction of the long-strip-shaped frame, each clamping wheel set comprises two first driving wheels and two second driving wheels, and the first driving wheels and the second driving wheels are distributed on the two sides of the transmission channel. Therefore, under the clamping and driving effects of the first driving wheel and the second driving wheel on the two sides, the parallel pipes have opposite extrusion force, and in the conveying process of the parallel pipes passing through the welding area along the path assembly, the gap distance between the parallel pipe bodies is controlled; and the welding quality stability and the progress efficiency of welding work can be improved.

This invention relates to a robotic arm welding deviation compensation control method based on real-time weld seam tracking. By collecting real-time welding process parameters and weld seam tracking deviations, multi-source data is fused, standardized, and feature extracted to construct a parameter semantic graph reflecting the mechanism of the process. A sparse subgraph is dynamically generated based on working condition information. Combining graph structure analysis and attention propagation, dominant parameter nodes and their linkage patterns are identified. Behavioral templates are matched to obtain the inter-parameter compensation control logic, generating compensation quantities with semantic consistency constraints to drive the robotic arm to achieve posture correction and complete closed-loop feedback. This method achieves multi-parameter welding coordination, transparent control logic, and highly adaptive quality control, improving weld seam formation consistency and the intelligence level of the welding process.

This invention provides a method, apparatus, storage medium, and electronic device for identifying welding defects. The method includes: acquiring an original time-series infrared thermal image of the weld region using an infrared thermal imager while welding a thin plate workpiece along the extension direction of the weld region; extracting the region of interest (ROI) from the original time-series infrared thermal image and calibrating the ROI to obtain a time-series temperature distribution image, wherein the time-series temperature distribution image characterizes the temperature value of each pixel; extracting thermal feature parameters from the time-series temperature distribution image, wherein the thermal feature parameters include temperature peak features, temperature gradient features, and thermal diffusion features; predicting the back weld width of the weld region based on the thermal feature parameters; and identifying welding defects in the weld region using the thermal feature parameters and the back weld width. This embodiment solves the technical problem of the inability to detect welding defects in thin plate workpieces in the prior art, significantly improving the efficiency and accuracy of thin plate welding quality inspection.

This invention provides an intelligent welding control method for automotive parts, relating to the field of automotive parts welding control technology. The method includes acquiring welding task information and welding reference process parameters for the automotive parts to be welded. By acquiring the welding task information and welding reference process parameters, this intelligent welding control method constructs an initial set of welding control parameters and combines this with pre-welding inspection data to characterize the state of the welding object, achieving targeted adaptation of welding control parameters before welding. During the welding process, it further combines multi-dimensional monitoring data such as current, voltage, molten pool image, temperature, spatter state, and welding torch posture to perform real-time analysis and forward prediction of the welding formation state, thereby achieving advance compensation and dynamic updating of welding parameters for the next control cycle. This improves the adaptive control capability, welding formation consistency, and welding quality stability of the automotive parts welding process.