425 results about "Laser beam welding" patented technology

The invention relates to a tin ring automatic focusing laser soldering tin fixing and 3D welding spot detecting system, and belongs to the technical field of industrial automatic laser processing. The system is characterized in that a tin ring preparation module identifies pins in real time and dynamically optimizes winding parameters through visual positioning and a self-adaptive winding head, and performs defect identification and pre-repair analysis through multispectral imaging; the soldering tin positioning module is used for switching stations through a rotary table, and precise positioning and clamping of a product are realized by combining laser contour sensing and a focusing compensation algorithm; the laser tin soldering module can visually identify tin materials and automatically call welding parameters, laser power and action time are regulated and controlled in real time by establishing a regional heat conduction model, and gradient cooling is implemented after welding; and the 3D detection module adopts dual-mode scanning, constructs a welding spot three-dimensional model based on fusion data, recognizes microcracks through super-resolution processing, and discriminates the welding spot quality. And automation and intellectualization of the whole process from tin ring preparation to welding spot quality detection are achieved.

The invention belongs to the technical field of thin plate laser welding, and particularly relates to a curved-surface thin plate laser welding device which comprises a welding base. A first supporting frame is arranged on the welding base. The upper fixing base and the lower fixing base are matched with a plurality of short rods to adaptively clamp different types of curved-surface thin plates, and are matched with two laser welding heads to perform double-sided welding, so that the effect of performing counterpoint double-sided laser welding on the different types of curved-surface thin plates is achieved, traditional laser equipment which is difficult to perform double-sided counterpoint welding on the curved-surface thin plates is replaced, and the production efficiency is improved. The multiple short rods on the upper fixing base and the lower fixing base can conduct adaptive clamping according to the curved surface shapes of the thin plates, the welding precision and stability are improved, welding deviation caused by the irregular curved surface shapes of the thin plates is avoided, the two oppositely-arranged laser welding heads can flexibly move to the upper and lower opposite seams of the two curved surface thin plates, and the welding quality is improved. And laser double-face simultaneous welding is achieved, the welding efficiency is improved, a welded joint is firmer, and the overall welding quality is improved.

The invention discloses a permanent magnet synchronous motor iron core welding device, and relates to the technical field of iron core welding, the permanent magnet synchronous motor iron core welding device comprises a rack, a welding platform is arranged in the rack, a welding manipulator is arranged right above the welding platform, and a laser welding gun main body is mounted at the end part of the welding manipulator; an auxiliary mechanism capable of synchronously moving along with the laser welding gun body from bottom to top is installed on the outer surface of the laser welding gun body, and the auxiliary mechanism can enable silicon steel sheet layers in a local area to have instant micro gaps before welding operation so as to promote molten liquid to permeate into a deep layer. And after welding is completed, axial downward pressure is applied to the area so as to compact the welding seam and increase the compactness between the silicon steel sheet layers, local pressure release of the welding area is achieved through a double-layer pressing plate and an annular pressing rod, continuous operation of gap pre-expansion, melt permeation and welding seam compaction is constructed in cooperation with a Y-shaped push rod and a pressing wheel, melt permeation and the compactness between the layers are taken into consideration, and the welding quality is improved. The iron core welding quality is improved.

The invention belongs to the technical field of corrugated plate welding, and particularly relates to an automatic laser welding device and method for a corrugated plate of an LNG transport ship. The device comprises a corrugated plate clamp, a walking track, a welding trolley and a laser welding machine. The corrugated plate clamp achieves clamping of corrugated sections of the corrugated plate through a four-connecting-rod mechanism composed of a pressing rod, a connecting rod, a telescopic rod and a locking fastener. The walking track is fixed to a base of the corrugated plate clamp, and a rack is arranged on the walking track. A gear meshed with the rack is arranged at the bottom of the welding trolley and carries the laser gun head to move along the track. The laser welding machine modulates a single light spot into a plurality of light spots which are linearly distributed in an array mode, a light spot array is perpendicular to a welding seam, the energy of the light spot in the middle is higher than the energy distribution of the light spots on the two sides, and the method for welding the corrugated plate through the device is provided. When the device is used for welding the corrugated plate of the LNG transport ship, the welding speed is high, the forming quality is good, deformation is small, and consistency is high.

The invention discloses a lithium battery tab laser welding spot detection method and system, and the method comprises the steps: building a collection system of a multispectral camera, an infrared thermal imaging camera and a photoacoustic imaging module, synchronously collecting the surface optics, internal heat distribution and microstructure characteristics of a welding spot, and reconstructing the internal defect three-dimensional distribution of a preset depth; constructing a feature association matrix, verifying association between features and defects in combination with three-dimensional distribution, and outputting fusion features containing three-dimensional distribution parameters through an attention weighted fusion network; dynamically adjusting visual parameters based on the working condition parameters; detecting defects in combination with fusion features and a causal database, and outputting a process adjustment instruction in advance by a pre-judgment module; and through 3D U-Net, micro defects are segmented and graded. The method covers the full-dimension defects, improves the false defect elimination rate, reduces the defect rate, gives consideration to the detection precision and the production efficiency, and meets the high-reliability detection requirements of the lithium battery tabs.

The invention discloses a laser welding robot system and a working method thereof, and belongs to the technical field of laser welding.The laser welding robot system comprises a mechanical arm and a laser welding gun arranged at the end of the mechanical arm, and the laser welding gun is installed at the end of the mechanical arm through an adjustable swing mechanism; supporting plates which are symmetrically arranged are arranged between the mechanical arm and the laser welding gun, an adjustable swing mechanism for adjusting the laser welding gun in real time is arranged between the supporting plates, and the adjustable swing mechanism comprises a swing assembly and a driving assembly of the swing assembly. According to the laser welding robot, the driving assembly, the swinging assembly and the wire feeding assembly are designed, so that the laser welding robot can adjust the left-right swinging amplitude of the welding gun according to the size of a to-be-welded gap during working, the attractiveness of a welding seam is improved, in addition, in the welding process, the wire feeding angle changes along with the welding direction, and the welding quality is improved. Therefore, the working performance of the laser welding robot is improved.

The invention discloses a high-precision laser welding spot recognition method based on an attention guidance context fusion network. The method mainly solves the problems that according to an existing laser welding spot recognition technology, small target features are prone to being lost, multi-scale detection is unbalanced, and background noise interference exists. The implementation scheme is as follows: 1) acquiring a data set and an identification tag; 2) constructing a laser welding spot identification model; 3) constructing a loss function; 4) training a laser welding spot identification model; and 5) obtaining a laser welding spot identification result. According to the laser welding spot recognition model constructed by the invention, the problem of multi-scale defect coexistence is solved by adopting differential cavity convolution to capture local details and a semi-global structure through the multi-scale context fusion module, the overlapping space reduction and local convolution enhancement technology is adopted through the local enhancement space attention module, and the laser welding spot recognition accuracy is improved. The problem of insufficient retention of key edge information in deep features is solved, the attention guide dynamic sampling module replaces traditional pooling operation to reduce down-sampling information loss, the problem of low retention rate of small target features is solved, a channel and a space attention mechanism are fused in shallow features through the double-attention feature modulator module, and the target feature retention rate is improved. The problem that the small target detection rate is low under background noise interference is solved.

The invention relates to a method for monitoring a welding process, preferably a laser beam welding process, wherein the welding process is observed with at least one high-speed camera (1). According to the invention, the following steps are carried out: a) Transmitting images supplied by at least one high-speed camera (1) to a graphics processor , b) Capturing essential features on the images as event points by means of computer-aided feature extraction , c) Calculating associated motion vectors by determining an optical flow of the detected event points in order to track a movement of the event points within an image sequence, and d) Performing an analysis of the event points, the associated motion vectors and / or the optical flow, on the basis of which the welding process is qualitatively assessed. The invention further relates to a camera system for carrying out steps of a method according to the invention.

The invention discloses a multi-mode-based laser welding seam defect detection system, which comprises a sensor module used for acquiring multi-mode data in a welding process and preprocessing the multi-mode data; the feature extraction module is used for inputting an improved MoSE model and executing preliminary feature extraction and mapping; the feature fusion module is used for inputting the gated attention neural network and executing weight calculation and interactive attention alignment operation; the defect feature modeling module is used for inputting the improved capsule network, calculating correlation based on a routing attention mechanism and distributing weights; the classification and positioning module is used for executing activation value calculation, classification judgment and significance distribution mapping; and the result output module is used for combining the classification result and the positioning result of the weld defects to generate a real-time detection result and feeding back the real-time detection result to the welding control end. By improving the MoSE model and the capsule network, intelligent classification and positioning of weld defects are achieved, and the method has the advantages of being sufficient in feature fusion and high in detection precision.

The invention discloses an intelligent control method and system for laser welding equipment. The method comprises the steps that real-time image data of a welding area are collected, and environment variable data are obtained; according to the real-time image data, image smoothing processing, noise suppression, filtering processing and denoising calculation are carried out, and clear contour data of the welding area are determined; according to the clear contour data, interference residual features are extracted, and integrated analysis is carried out in combination with the environment variable data to obtain the influence degree of interference on path planning; and according to the influence degree of the interference on path planning, dynamic parameter updating, interference compensation calculation, path deviation correction and welding track optimization are conducted, optimized track data are obtained, and a final welding operation sequence is determined according to the optimized track data. Accurate positioning of the laser welding equipment and dynamic optimization of the welding track can be achieved, and environmental interference is effectively compensated.

The invention relates to the technical field of detection devices, in particular to a shaft surface surfacing weld height real-time detection device. Comprising a base frame, a multi-shaft driving platform is installed on the base frame, a welding frame and an inspection frame are connected to the multi-shaft driving platform, the cooling spray pipe is fixed to the multi-shaft driving platform, a laser welding gun, an industrial camera and an infrared thermometer are fixedly installed on the welding frame, a pressing frame is connected to the inspection frame in a sliding mode, and a reciprocating pressure applying module is fixedly installed on the inspection frame. The reciprocating pressure applying module drives the pressing frame to vertically vibrate in a variable amplitude mode, a sliding frame is connected to the pressing frame in a sliding mode, and a friction transmission module for driving the sliding frame to horizontally vibrate in a variable amplitude mode is arranged between the pressing frame and the sliding frame. The integrated multi-shaft driving platform has the beneficial effects that the welding frame, the detection frame, the cooling spray pipe and other modules are integrated into the same movement system through the integrated multi-shaft driving platform, and the double-outlet-rod hydraulic cylinder and the linear transmission module are matched, so that welding, spray cooling, weld joint cleaning and height detection can be sequentially completed on the premise that a workpiece is not moved.

The utility model relates to the technical field of new energy lithium batteries, and discloses a new energy lithium battery cover plate laser welding clamp which comprises a supporting frame, a first cover plate tool and a second cover plate tool, a connecting frame is fixedly installed at the bottom end of the first cover plate tool and the bottom end of the second cover plate tool, and a moving groove is formed in the top end of the supporting frame. According to the clamp for laser welding of the new energy lithium battery cover plate, two sets of cover plate tools can be arranged to replace to support and fix the cover plate, the fixing and welding efficiency of the cover plate is greatly improved, through a fan, the cover plate can be fixed and fixed through the fan, and the cover plate can be fixed and fixed. The cooling efficiency after welding of the cover plate can be greatly improved, a worker can conveniently take out and replace the cover plate, and the problems that in the prior art, after welding of the cover plate on a cover plate tool is completed, the cover plate needs to be taken out and replaced with a batch of cover plates to be welded after being naturally cooled, the downtime of equipment is long, and the production cost is low are solved. Therefore, the welding efficiency is influenced.

This invention relates to the field of detection device technology, specifically a real-time detection device for the height of weld seams on shaft surfaces. It includes a base frame on which a multi-axis drive platform is mounted. A welding frame and a detection frame are connected to the multi-axis drive platform. A cooling spray pipe is also included and fixed to the multi-axis drive platform. A laser welding gun, an industrial camera, and an infrared thermometer are fixedly mounted on the welding frame. A pressure frame is slidably connected to the detection frame and a reciprocating pressure module is fixedly mounted thereon. The reciprocating pressure module drives the pressure frame to vibrate vertically with varying amplitude. A slide is slidably connected to the pressure frame, and a friction transmission module drives the slide to vibrate horizontally with varying amplitude between the pressure frame and the slide. The beneficial effects of this invention are: by integrating the welding frame, detection frame, and cooling spray pipe into a single motion system through an integrated multi-axis drive platform, and in conjunction with a double-rod hydraulic cylinder and a linear transmission module, welding, spray cooling, weld seam cleaning, and height detection can be completed sequentially without moving the workpiece.

The application discloses a high-precision laser welding machine clamp pressing device, which comprises a gantry clamp body, a lower pressing plate, an upper pressing mechanism and at least a first telescopic driving part, the lower pressing plate is fixed on the gantry clamp body, and first front and rear clamp openings are arranged on the front and rear sides of the lower pressing plate respectively; the upper pressing mechanism is located above the lower pressing plate, and the upper pressing mechanism comprises at least two guide columns, a connecting seat and an upper pressing plate, each guide column is arranged in parallel and slidably on the gantry clamp body, and the connecting seat is fixed to the bottom of each guide column. The application has the beneficial effects that the second front and rear clamp openings are balanced in stress, the upper pressing plate can slightly rotate relative to the connecting seat, the second front clamp opening can effectively press the strip steel, the strip steel in the area from the second rear clamp opening to the second front clamp opening is in a completely pressed state, the coincidence degree of the shearing section of the strip steel is effectively improved, and the welding strength is improved.

The utility model relates to the technical field of finned tubes, and discloses a rotating direction type laser welding finned tube which comprises a main body assembly. The main body assembly comprises a pipe body, and flange plates are symmetrically arranged on the outer side wall of the pipe body; the heat dissipation fins are arranged on the pipe body, and the number of the heat dissipation fins is multiple; a mounting assembly is arranged on the pipe body, and the mounting assembly comprises a first shell, a second shell, a third shell and a fourth shell; the heat-conducting fin welding device has the advantage that heat-conducting fins can be conveniently welded, a plurality of heat-conducting fins are welded on the first shell and the second shell, a pipe body is prevented from being damaged during welding, then an operator presses the limiting blocks on the two sides, the limiting blocks on the two sides extrude the first springs on the limiting blocks and enter the second box body on the first box body, and the heat-conducting fins are welded to the first box body and the second box body. And then the operator can move the second box body out of the limiting frame, so that the first shell and the second shell are separated, the operator can conveniently carry out repair welding on the cooling fins on the first shell and the second shell, and the problem that a pipe body is prone to being damaged by welding of the heat-conducting fins is solved.

The invention provides a backing welding method for handheld laser welding, and belongs to the technical field of welding, the method comprises the steps that a first to-be-welded plate and a second to-be-welded plate are obtained and fixed, the first to-be-welded plate and the second to-be-welded plate are parallel and opposite to each other, the first end part of the first to-be-welded plate is connected with the second end part of the second to-be-welded plate, and the second end part of the second to-be-welded plate is connected with the first to-be-welded plate; an included angle larger than 60 degrees and smaller than 90 degrees is formed between the first slope of the first to-be-welded plate and the second slope of the second to-be-welded plate, the handheld laser welding gun is arranged between the first slope and the second slope, and a welding wire is arranged at a laser nozzle of the handheld laser welding gun; and starting the handheld laser welding gun, moving the handheld laser welding gun in a direction parallel to the first edge when the laser beam passes through the first end part and the second end part, and synchronously filling a welding wire at the laser nozzle so as to form a welding bead of backing welding between the first slope and the second slope. The bottom of the plate is completely melted, and the beneficial effect of improving the welding quality is achieved.

The utility model discloses a motor processing laser cladding device which comprises a workbench, the top side of the workbench is fixedly connected with a fixing frame, the inner side of the fixing frame is rotatably connected with a rotating arm, the fixing frame and the rotating arm are both distributed in a bilateral symmetry mode about the bisector of the workbench, and a first motor is installed on one side of the fixing frame. A motor shaft body is clamped on the inner side of the rotating arm, a laser welding head is arranged at the top of the motor shaft body, a reciprocating ball screw is arranged at the bottom of the motor shaft body, two mounting frames are fixedly connected to the reciprocating ball screw, and a first cleaning assembly and a second cleaning assembly are arranged on the inner sides of the two mounting frames correspondingly; the first cleaning assembly and the second cleaning assembly are the same in structure. The second cleaning assembly comprises a splicing block rotationally connected with the mounting frame, and the splicing block is of an arc-shaped structure. According to the device, the motor shaft body can be uniformly and thoroughly cleaned, so that the cleanliness of the surface of the motor shaft body during cladding is guaranteed, and the cladding effect of the motor shaft body is guaranteed.

The application provides a nuclear reactor core device and a preparation method thereof, and belongs to the technical field of material welding. The preparation method of the nuclear reactor core device comprises the following steps: preparing a rib plate assembly, a W-shaped plate assembly and a C-shaped plate assembly; assembling multiple W-shaped plate assemblies and C-shaped plate assemblies into a whole circle and fixing the same by using inner and outer support tools, performing automatic welding by using a laser symmetrical welding method, and forming a W / C-shaped plate assembly; synchronously and alternately welding the W / C-shaped plate assembly on the inner and outer sides by using two automatic wire filling welding guns by using a double-sided layered symmetrical welding method, and realizing the connection of the W / C-shaped plate assembly with a bottom plate and a top plate; performing automatic butt welding of an outer half-ring plate by using laser welding and laser wire filling welding; and finally, welding internal fillet welds and performing nondestructive testing. By the cooperation of laser welding, automatic MIG welding, special tools and a symmetrical welding sequence, high-quality and high-efficiency automatic welding of the core containment vessel is realized, and welding deformation is effectively controlled.

The invention relates to the technical field of laser tin soldering, in particular to an automatic offset feedback laser tin soldering head for camera machining, which comprises an anti-burning cover mechanism, the anti-burning cover mechanism comprises a cover cylinder and a movable cover assembly, the cover cylinder is fixedly arranged, and the movable cover assembly is rotatably connected to the bottom of the cover cylinder and used for sealing or opening a bottom opening of the cover cylinder. And the anti-burning cover mechanism is used for sealing the end part of the laser welding head body in a non-working state, and is automatically opened when an operator does not open the laser welding head body and directly starts the laser. The anti-burning cover mechanism is automatically unlocked through thermal deformation of the double metal elastic pieces, the safety risk of laser false starting is effectively avoided, the linkage driving assembly is opened through the cover body to conduct the air path, and dynamic air curtain protection in the working state and physical sealing in the non-working state are formed.

The invention discloses automatic laser welding equipment for a convex seat and a ring of a stress application header pipe and a welding process method of the automatic laser welding equipment. The automatic laser welding equipment comprises a positioning point fixing device, a dust suction and exhaust device, a welding device of an integrated positioner, a 3D measuring camera, a welding robot, a robot controller, a water cooling machine, a laser, an integrated console and a voltage-stabilized source. All the components are integrally connected through cables or pipelines, the 3D measuring camera and the welding robot move synchronously, the water cooling machine and the dust suction and exhaust device form cooling and dust removal loops with related components respectively, and the stabilized voltage supply supplies power to all the components. The process method comprises the following steps: positioning and locking the convex seat through the bolt, and tacking a welding seam to ensure that a gap is less than or equal to 0.1 mm Inputting a theoretical model, scanning a real object, modeling and comparing, and automatically planning a track; and according to the logic of first scanning confirmation and second welding, 24 welding seams on the outer side and partial welding seams on the inner side are symmetrically completed, and the remaining welding seams on the inner side are completed after turning over. Manual argon arc welding is replaced by laser welding, the problem of automatic welding of pipelines of complex structures is solved, the welding technology level is improved, and the product quality consistency and the machining efficiency are improved.

The present application belongs to the technical field of laser processing, and particularly relates to a device and method for in-situ monitoring and dynamic regulation of a laser welding and cutting process of a packaging container. The device comprises a laser welding or cutting unit, a container rotating mechanism, a light signal acquisition unit, an image acquisition unit, an acoustic signal acquisition unit, an ultrasonic unit, and a central control module. The laser welding or cutting unit is used for welding or cutting the packaging container. The container rotating mechanism is used for supporting and rotating the packaging container. The light signal acquisition unit, the image acquisition unit, and the acoustic signal acquisition unit are used for acquiring light signals, images, and acoustic signals of the welding or cutting area, respectively. The ultrasonic unit is used for loading ultrasonic waves to the packaging container. The central control module is used for receiving multi-source signals and sending control instructions. Through the complementation of multi-source sensing information, the present application improves the recognition ability of abnormal states of welding or cutting, and overcomes the problem of one-sided information and inaccurate judgment of a single monitoring method.

A double-ultrasonic self-adaptive auxiliary laser welding device comprises a mounting support and a laser welding gun mounted in the middle of the mounting support. A front-end ultrasonic vibration head and a rear-end ultrasonic vibration head which move synchronously with the laser welding gun are mounted on the mounting bracket and are respectively arranged at the front end and the rear end of the laser welding gun in the welding direction; an adjusting assembly used for adjusting the positions of the front-end ultrasonic vibration head and the rear-end ultrasonic vibration head is installed on the installation support. The adjusting assembly comprises a height adjuster and an angle adjuster connected to the end of the height adjuster. Compared with the prior art, the height and angle of the front-end ultrasonic vibration head and the rear-end ultrasonic vibration head can be adjusted through the adjusting assembly, self-adaptive adjustment of vibration pressure can be achieved according to different welded materials, the stirring effect on a molten pool is improved, and meanwhile the ultrasonic vibration heads can be prevented from scratching the surface of a weld joint.

The utility model discloses a clamp device for a laser welding machine for coating and plating a wire, which comprises a base, a pressing assembly, a centering piece and a supporting plate assembly, the base is provided with a working side, and the working side is provided with an avoiding groove; the pressing assembly is movably installed on the base in the direction close to and away from the working side and used for pressing the strip steel to the working side. The centering part is movably arranged on the side, facing the working side, of the pressing assembly in the direction close to and away from the middle of the pressing assembly and corresponds to the avoiding groove, so that when the pressing assembly drives the centering part to move towards the working side, the centering part movably extends into the avoiding groove in the direction facing the middle of the pressing assembly; the supporting plate assembly is movably arranged in the receding groove in the direction close to and away from the centering piece, so that when the centering piece retreats from the receding groove, the supporting plate assembly moves in the direction close to the centering piece to be flush with the working side. The situation that the head of the strip steel is stacked at the receding groove and cannot reach the center of the welding machine smoothly, and follow-up operation of equipment is affected can be avoided.

The invention discloses a laser welding device based on coupler production and relates to the technical field of welding, the laser welding device comprises a base, a portal frame is fixedly connected to the top of the base, a sliding groove is formed in the inner side of the portal frame, a reinforcing rod is fixedly connected to the back side face of the portal frame, and an adjustable welding mechanism is arranged on the inner side of the portal frame. Through the arrangement of the adjustable welding mechanism, when a workpiece is placed on a grating plate and is firmly clamped by using an electric push rod in cooperation with a clamping plate for welding work, the height and angle of a laser welding gun can be adjusted through a lifting motor, a threaded rod A, a rotating motor and other assemblies; the distance between the laser welding gun and the workpiece can be finely adjusted through the electric push rod, and meanwhile the collecting base and the workpiece clamped on the collecting base can be driven to move towards the front end or the rear end through the moving motor, the threaded rod B, the threaded barrel, the sliding rod and other assemblies, so that the position of the workpiece is adjusted.

The invention discloses laser machining hardware mechanical equipment, and relates to the field of laser machining hardware mechanical equipment, the laser machining hardware mechanical equipment comprises a laser welding machine body and a wire feeder body, the wire feeder body is arranged at the top of the laser welding machine body, a mounting groove is formed in the wire feeder body, and a cabinet door is movably mounted on the inner wall of the mounting groove; a clamping assembly is arranged in the cabinet door, and a first limiting block and a second limiting block are fixed to one side of the cabinet door. The problem that an existing wire feeding wheel is inconvenient to replace is solved, when two sets of wire feeding wheels need to be replaced, a supporting rod is rotated to rotate by more than 90 degrees, a bolt tightening and fixing mode is replaced, when a cabinet door is closed, the supporting rod is extruded through a second limiting block, the purpose of extruding the supporting rod is achieved, and the safety of the cabinet door is improved. And by arranging a rubber pad, the friction force between the extrusion ring and the wire feeding wheel and between the blocking disc and the wire feeding wheel can be increased.

The invention relates to a contact piece (4) for electrically contacting at least two electrical contact elements (2, 3), comprising a first contact side (7) for contacting a first electrical contact element (2), a second contact side (8) for contacting a second electrical contact element (3), the first contact side (7) has a first support region (10) and the second contact side (8) has a second support region (11), the first contact side (7) being arranged adjacent to a surface (13) of the first electrical contact element (2) by means of the first support region (10), the second contact side (8) can be arranged adjacent to a surface (14) of the second electrical contact element (3) by means of the second support region (11), and wherein the second contact side (8) is arranged adjacent to the surface (14) of the second electrical contact element (3), the first support region (10) protrudes outwardly with respect to a main plane of extension of the first contact side (7) and the second support region (11) protrudes outwardly with respect to a main plane of extension of the second contact side (8), a device (1) and a method.

A method for manufacturing a structure comprising cavities, the method comprising the following steps: a) forming hollow areas (110) in a first face (101) of a substrate (100) made of a first material, b) depositing a plate (200) made of a second material onto the first face (101) of the substrate (100), so as to cover the hollow areas (110) of the substrate (100), c) performing resistance welding, electron beam welding, or laser beam welding, preferably under vacuum, around the hollow areas, thereby welding the plate (200) onto the substrate (100) and forming cavities, d) performing a hot isostatic compression diffusion welding step on the assembly obtained. Figure for the abstract: 5A

The utility model provides a USB female seat connector with a screw hole, which belongs to the technical field of USB female seat connection and comprises a metal shell. According to the utility model, under the double-row arrangement of the two groups of the first terminals and the second terminals, the subsequent welding is facilitated, the PCB wiring space is saved, all the first terminals and the second terminals are formed by 90-degree bending of an automatic machine, the stamping process production is facilitated, the electroplating cost is saved, and under the arrangement of the limiting raised lines, the limiting openings, the buckling positions, the buckling points and the elastic clamping pieces, the production efficiency is improved. Compared with the prior art, the USB female seat connector has high retaining force, the stability of the USB female seat connector in use is guaranteed, under the arrangement of the screw plate, the threaded holes and the welding spots, the high-strength screw plate and the shell of the client side can be connected and fixed together through the M3 screws through the threaded holes, and then locking of the metal shell and the interior of the client side shell support is completed. And meanwhile, a plurality of groups of welding spots are welded on the metal shell combination line by laser, so that the impact strength of the metal shell is improved, and the applicability of the USB female seat connector is further improved.

The invention discloses a special welding machine for a large flat plate of an automotive lifting tail plate, which belongs to the technical field of automobile manufacturing equipment and comprises a welding robot and a workpiece bracket, the welding robot comprises a mechanical arm, a laser welding seam tracking sensor and a welding gun, a plurality of pressing blocks are arranged on the workpiece bracket, and the welding robot is assembled on a robot translation device. The workpiece bracket is erected between the bracket turnover device and the bracket turnover supporting seat, the robot translation device comprises a first base, a first sliding rail, a translation driving device and a first supporting seat, the bracket turnover device comprises a second base, a second supporting seat and a turnover driving device, and the bracket turnover supporting seat comprises a bearing supporting seat and a rotating shaft. The turnover driving device is connected with one side of the workpiece bracket, and the rotating shaft is connected with the other side of the workpiece bracket; the problems that in the prior art, the production cost is high due to the fact that two welding robots are needed for welding the large flat plate of the vehicle lifting tail plate, and the labor intensity is large and the production efficiency is low due to the fact that manual turning is needed are solved.

The utility model relates to a gear sensor shell welding device which comprises a rack, a laser welding machine, a workbench and a collapse detection assembly, and the laser welding machine is installed on the rack and provided with a laser welding end pointing to the rack; the workbench is arranged on the rack and provided with a clamping groove right facing the laser welding end. The collapse detection assembly comprises a lower pressing plate, a displacement sensor and a driving part, the lower pressing plate is arranged at the position between the workbench and the laser welding end, the lower pressing plate is provided with a light-transmitting part right facing the clamping groove, the driving part is installed on the rack, the output end of the driving part is connected with the lower pressing plate or the workbench, and the driving part is used for driving the lower pressing plate and the workbench to move oppositely or oppositely. The displacement sensor is installed on the lower pressing plate, and the detection end of the displacement sensor abuts against the workbench. The collapse degree of the gear sensor in the welding process can be detected through the vertical difference value recorded twice by the displacement sensor, and therefore the welding quality is judged.