1146 results about "Laser beam welding" patented technology

The invention belongs to the technical field of welding seam detection, and particularly relates to a laser welding seam defect detection machine which comprises support plates, adjusting assemblies arranged between every two adjacent support plates, driving assemblies installed on the support plates and balancing assemblies arranged on one sides of the support plates. Wherein three groups of support plates are arranged in a circumferential array, a front-end support is fixedly mounted on one side of the long edge of each group of support plates, an ultrasonic detection probe, a dot matrix laser and a camera are sequentially mounted on the three groups of front-end supports, an electric control module is mounted on the top surface of each support plate, and a power supply module, a data analysis processing module and a control system are arranged in each electric control module. The device can automatically move on a reducing pipeline, perform positioning detection on a welding seam, and perform circumferential uninterrupted detection in the detection process, so that the detection precision is higher, a mode of combining laser detection and ultrasonic detection is utilized, displacement deviation is automatically corrected after reducing, the error probability is greatly reduced, unnecessary workload is avoided, and the detection efficiency is improved. The detection efficiency is improved.

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 discloses a laser welding spatter real-time recognition method based on OCT keyhole depth measurement. The method comprises the steps of S1, keyhole depth data collection based on OCT measurement and data set construction and S2, construction training of a deep learning model and spatter defect recognition. According to the method, an SD-OCT measurement technology is combined with a composite deep learning model based on 1DCNN-BiLSTM splash defect recognition, a Dropout technology and adaptive moment estimation are adopted to prevent model overfitting, and a TPE algorithm is adopted to carry out hyper-parameter optimization on the model, so that the trained 1DCNN-BiLSTM splash defect recognition model can accurately predict the splash state in the dynamic laser welding process, and the accuracy of the dynamic laser welding process is improved. Manual intervention is not needed, and the laser welding spatter defect can be rapidly and accurately recognized.

The invention provides a double-robot collaborative welding dynamic compensation system which is characterized by comprising two welding robots slidably mounted on two ground rails, a six-axis laser welding seam locating device is mounted on each welding robot, and a machine vision assembly is arranged in each laser welding seam locating device. A stand column cantilever used for driving the welding robot to move is installed on the ground rails in a sliding mode, a rotary table position changing machine is arranged between the two ground rails, a powder concentrator rotor is placed on the rotary table position changing machine, and a control system is electrically arranged beside the welding robot. The double robots cooperatively work through the laser distance measuring sensor and the visual assembly, rapid concentric alignment of a rotor, blade angle calibration and real-time tracking of a welding seam are achieved, high-precision positioning of the laser distance measuring instrument is combined with intelligent image processing of the visual module, the accuracy of welding path planning is remarkably improved, deviation caused by manual intervention is avoided, and the working efficiency is improved. The two robots cooperate with each other, so that the welding efficiency is improved by more than 40% compared with a single-machine system.

The invention discloses a lithium battery welding device, and relates to the technical field of lithium battery welding. A rectangular channel for allowing a plurality of lithium batteries to pass through is formed in the welding platform, an electric push rod A and an electric push rod B for pushing the lithium batteries to move are arranged at the two ends of the rectangular channel correspondingly, and meanwhile, a laser welding mechanism comprising a laser welding head and a positioning and pressing structure is arranged over the welding platform; automatic welding is realized during use; a feeding system composed of a feeding mechanism and a discharging groove connected with a vibration disc is arranged on the outer side of any side plate, feeding of electrode plates is controlled through the feeding system during welding, and the electrode plates to be welded are controlled through the feeding system to be tightly attached to the ends of the lithium batteries to be positioned during welding. And the position deviation of the electrode plate relative to the lithium battery in the welding process is avoided.

The invention relates to the technical field of cookware welding, and discloses a cookware processing welding device which comprises a supporting transverse plate, a welding mechanism and a partition plate clamping mechanism, and frame-shaped supporting legs are arranged at the two ends of the supporting transverse plate; the welding mechanism comprises a bottom support arranged on the side, close to the ground, of the supporting transverse plate, the middle of the bottom support is slidably connected with a transverse moving seat, the transverse moving seat is provided with a U-shaped sliding seat synchronously moving along with the transverse moving seat, the U-shaped sliding seat is slidably connected with a telescopic rod, and the end of the telescopic rod is fixedly connected with a fixing block. A stand column is arranged on the side, away from the ground, of the fixing block, the end of the stand column is rotationally connected with a laser welding head, a pitching adjusting assembly for adjusting the pitching angle of the laser welding head is arranged on the side face of the transverse moving seat, and a tracing guide block is arranged in the middle of the supporting transverse plate. Through the synergistic effect of the deflector rod and the guide groove, the laser welding head is driven to accurately move along a preset track, and automatic welding treatment of a space curve welding seam between the arc-shaped partition plate and the inner wall of the pot body is achieved.

The invention discloses titanium tube laser automatic welding and sealing equipment for sealing a seed source, and relates to the technical field of titanium tube welding and sealing equipment, the titanium tube laser automatic welding and sealing equipment comprises a bearing table, a positioning assembly is arranged on the upper surface of the right end of the bearing table and used for positioning and conveying a titanium tube, and a protection assembly is arranged in the positioning assembly and used for cooling the titanium tube and isolating hot air. The upper surface of the left end of the bearing table is fixedly connected with a carrying frame, and a laser welding and sealing assembly is installed on the upper surface of the carrying frame and used for welding and sealing a titanium tube. According to the titanium pipe welding device, firstly, a second air cylinder is controlled to be started to drive a servo motor and a laser welding head to move left and right at the same time, so that the welding diameter can be rapidly adjusted, and titanium pipes with different diameters can be conveniently welded through the laser welding head; in this way, the welding angle of the laser welding head can be rapidly adjusted, the welding position of the laser welding head can be conveniently and accurately adjusted, and the practicability of the whole device is greatly improved.

The invention discloses welding equipment for a laser welding combined cap for a lithium battery and a process of the welding equipment, and relates to the technical field of lithium battery welding. The welding equipment comprises a welding main body, a discharging groove is formed in one side of the top of the welding main body, and a supporting column is fixedly connected to the center of the top of the welding main body; a storage box is fixedly connected to one side of the top of the supporting column, a feeding pipe is fixedly connected to one side of the outer wall of the storage box, and an electric brake is fixedly connected to one end of the bottom of the inner wall of the feeding pipe. When the moving block pushes the push block to clamp the lithium battery, the moving block continues to move downwards to drive the push block and the lithium battery to move to the optimal welding position, and the problem that in the using process of the laser welding combined cap equipment for the lithium battery, when a small batch of lithium batteries with different specifications are machined, the welding efficiency is high is further solved. The problem that the processing efficiency of the lithium battery is low due to the fact that the equipment is frequently paused for multiple times and parameters of the equipment are adjusted in the prior art is solved.

The invention belongs to the field of manufacturing of other special equipment, and particularly relates to a folding chair cross brace welding device which comprises a rack, a transmission mechanism is arranged in the rack, two welding mechanisms are symmetrically arranged on the two sides of the rack, a conveying belt mechanism is arranged at the bottom of the rack, the transmission mechanism comprises two transmission shafts, and the two transmission shafts are rotationally installed in the rack. The transmission mechanism comprises a transmission shaft, two groups of chain wheels are symmetrically mounted on the transmission shaft, the chains are meshed with the two groups of chain wheels, a plurality of groups of assembling frames used for assembling a cross brace are arranged between the two groups of chains in a surrounding manner, and the cross brace is composed of two groups of vertical rods and a group of cross rods; the laser welding gun is slidably connected with the guide rail; after being welded, the cross brace can do circular motion along with the assembling frame and automatically fall onto the conveying belt mechanism, workers do not need to take away the cross brace, the workload of the workers is reduced, and meanwhile the automation rate of the device is increased.

The utility model provides a collector plate welding device which comprises a first clamp and a laser welding machine, the first clamp comprises a first pressing head and a first fixing assembly, the first fixing assembly is configured to fix a battery cell, the first pressing head and the first fixing assembly are oppositely arranged, and the laser welding machine is arranged on the first pressing head; the first pressure head is configured to press the first current collecting plate on the first end of the battery cell; a positioning hole and a first welding hole are formed in the first face, facing the first fixing assembly, of the first pressing head, and the positioning hole is configured to contain a protruding part on the center portion of a first flow collecting disc. The laser welding machine is arranged on the side, away from the first fixing assembly, of the first pressing head, and laser emitted by the laser welding machine can irradiate the welding area of the first current collecting disc through the first welding hole so as to weld the first current collecting disc and a tab at the first end of a battery cell together. And the coaxiality of the collector plate and the battery cell during welding can be improved.

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 an automatic laser welding production line for plastic cell panels. The automatic laser welding production line comprises a line body, a black plate feeding assembly, a white plate feeding assembly and a laser welding assembly. A plurality of tool plates are sequentially arranged on the line body in the conveying direction. Each tool plate comprises a bottom plate, a material limiting plate and a vacuum adsorption plate; the laser welding assembly is arranged on a laser welding station and comprises a bottom plate jacking mechanism, a vacuum adsorption plate jacking mechanism, a pressing welding assembly and a plastic plate welding positioning mechanism. The plastic plate welding positioning mechanism can position the white plastic plate and the black plastic plate which are positioned at the laser welding station; the pressing welding assembly comprises a transparent glass plate and a laser welding gun. The transparent glass plate is located over the laser welding station, and the height position of the transparent glass plate is kept unchanged. The laser welding gun is located above the transparent glass plate and can move in a two-dimensional mode according to a set welding path. The position of the welding part can be accurately guaranteed, and therefore the quality and welding efficiency of the finished welding part are improved.

The invention belongs to the technical field of hardware machining, and particularly relates to a hardware laser welding machine which comprises a welding machine base. An electric turntable is fixedly connected to the end part of one side of the welding machine base; the output end of the electric rotating disc is fixedly connected with a telescopic frame. A welding frame is arranged outside the telescopic frame; the laser welding head is driven by the arranged sliding frame to slide on the inner wall of the welding frame, the laser welding effect on the inner joint of the U-shaped hardware can be improved, the output end of a first servo motor is used for driving a connecting frame to rotate, a first wheel disc is matched to drive the welding frame to rotate up and down, and the laser welding head can be adjusted at multiple angles; the output power change of the laser welding machine can be controlled by utilizing a convex block to extrude a sliding block to trigger a contact in the process that the convex block slides along with a sliding frame, and a first clamping plate is matched with a second clamping plate to vertically clamp a vertical plate of the hardware and is matched with two extrusion blocks to extrude and clamp the vertical plate left and right; and the welding stability of the [-shaped hardware is improved.

The invention relates to the technical field of ship manufacturing welding, in particular to a large-wall-thickness Al-Mg alloy laser-MIG composite and friction stir welding coupled welding device and method for ships, and the device comprises a sequential system 1, a friction stir welding module 2 and a laser-MIG composite welding module 3; the laser-MIG composite welding module 3 comprises a laser sensing return device 3A, a welding gun swing control device 3B and a laser-MIG composite welding gun 3C; the laser-MIG composite welding gun 3C comprises an MIG welding gun and a laser welding gun, the MIG welding gun and the laser welding gun are coaxially arranged, an optical fiber laser is arranged in the laser-MIG composite welding gun 3C, the optical fiber laser has the functions of laser visual sensing, preheating and post-heating, and the device solves the contradiction between the penetration depth and the defect when a traditional welding method is adopted for the thick plate aluminum alloy for the ship. Axial force needed during friction stir welding can be reduced through laser preheating, the pressure of a main shaft of equipment is remarkably reduced, and the service life of a stirring head is prolonged.

The invention relates to a laser cutting-off technology, in particular to a laser bonding wire cutting-off device for chip detection, which comprises a workbench and the like, a fixed block is arranged above the workbench, and the fixed block moves through a first linear module mounted on the top surface of the workbench; a laser cutting device used for cutting off a welding wire is installed on the fixing block, and a datum plate is fixedly connected to the top face of the fixing block. The laser cutting device is provided with wiping blocks and other parts, the vertical positions of the wiping blocks are adjusted through the adjusting part, so that one wiping block can make contact with the bottom face of the lens of the laser cutting device, and when tiny impurities or dust on the lens of the laser cutting device needs to be wiped, the second linear module is started; the second linear module drives the moving block to move, so that one wiping block can wipe the lens of the laser cutting device, wiping can be completed in a laser cutting gap, manual wiping is not needed after each time of use, and time and manpower resources are saved.

The invention provides a forming method of a combined profile structure. The forming method comprises the following steps that S1, primary rolling is conducted, specifically, a primary roller press gradually changes the section of a material belt into a circular tube shape through a pre-pressing roller and a plurality of sets of forming rollers; s2, external welding, wherein the two aligned side edges of the material belt are welded through a welding machine; s3, secondary rolling is conducted, specifically, a secondary rolling machine gradually rolls the section shape of the material belt from a circular tube shape to a flat square tube shape through a plurality of sets of shaping rollers and shape righting rollers; s5, cutting off: cutting off the material belt according to a preset length through a cutting machine; s6, laser welding is conducted, specifically, at least two strip-shaped reinforcing ribs are inserted into an inner hole of the cut-off material strip, the reinforcing ribs are arranged in parallel to the axial direction of the material strip, and the multiple reinforcing ribs are inserted into the flat square tubular structure at intervals in the left-right direction; and then the upper ends and the lower ends of the reinforcing ribs are welded to the upper side wall and the lower side wall of the flat square tubular structure correspondingly through a laser welding machine. The invention further provides a combined profile structure.

The invention relates to a method for laser beam welding of components (1, 2). The method is characterized in that - a first component (1) made of nickel is arranged at least in sections on a second component (2) made of another metallic material, wherein a thickness (t o ) of the first component (1) is smaller than a thickness (t u ) of the second component (2) and the thickness (t u ) of the second component (2) is 0.05 mm to 2.50 mm, and - in an overlapping area of ​​the components (1, 2) onto a surface of the first component (1), a laser beam (LS) with a power of 500 W to 20,000 W, an intensity of 12.99 * 10 2 W / mm 2 up to 20.79 * 10 6 W / mm 2 and a beam diameter (d f) of 0.035 mm to 0.7 mm and is moved in a linear movement over the surface to produce a weld seam (S) designed as an I-seam in such a way that the weld seam (S) completely welds the first component (1) and the second component (2) up to a predetermined welding depth (ET) of 15 % to 95 % of the thickness (t u ) of the second component (2).

The invention discloses a local area inert gas protection auxiliary vacuum environment laser welding device and method, belongs to the technical field of laser welding, and aims to solve the problem that the laser welding quality of an existing easily-oxidized material is insufficient. A local area inert gas protection auxiliary vacuum environment laser welding device comprises a monitoring and feedback control system, a gas precise control system and a vacuum cavity, a gas nozzle, a workbench and a laser welding head are all arranged in the vacuum cavity, the laser welding head is located above the workbench, the gas nozzle is arranged on one side of the laser welding head, and the gas nozzle is arranged on the other side of the laser welding head. The vacuum pumping system is connected with the vacuum cavity, the laser welding head is connected with the laser welding machine, the gas precise control system controls the flow and the mixing proportion of inert gas jetted by the gas nozzle, and the monitoring and feedback control system monitors the temperature, the vacuum degree, the oxygen content and the plasma state of a welding area. And data are fed back to carry out closed-loop regulation control on various welding parameters. And the welding quality is greatly improved.

The utility model provides a valve seat structure and an electronic expansion valve, the valve seat structure comprises a valve seat part and a switching part, the switching part and the valve seat part are respectively used for switching a first connecting pipe and a second connecting pipe, the valve seat part is provided with a limiting cavity, and an opening of the limiting cavity is located on the bottom wall of the valve seat part; at least part of the switching part is arranged in the limiting cavity in a penetrating mode, and the switching part and the valve seat part form an annular welding seam at the opening of the limiting cavity. According to the technical scheme, furnace welding switching of the first connecting pipe is achieved through the switching part, the welding position of the switching part and the valve seat part is limited to the bottom of the valve seat part, and the situation that when the welding position is located on the side of the valve seat part, laser welding and other welding are prone to being interfered by the second connecting pipe, and therefore welding is not facilitated is avoided; welding of operators and realizability of corresponding welding equipment are facilitated, and convenience and reliability of welding are improved.

The invention relates to a manufacturing method of a medium and large size double-layer stainless steel thick plate complex curved surface structural member. The manufacturing method comprises the following steps: respectively forming an outer shell, an inner shell, a rib plate, a supporting column and a taper sleeve; the four side faces of the peripheries of the inner shell and the outer shell, welding grooves and supporting column mounting holes are machined, welding grooves of rib plates are machined, and the rib plates comprise outer rib plates close to the outer side and T-shaped rib plates located inside; a T-shaped rib plate is welded on the inner side surface of the inner shell; carrying out low-temperature annealing treatment on the welded inner shell and the T-shaped rib plate; a taper sleeve is welded on the inner shell, and then a shielding block is welded on the taper sleeve; finish machining is conducted on a groove, welded to the shell, of the T-shaped rib plate; riveting the shell and the supporting column, and fixing by spot welding; welding the shell and the supporting column, firstly performing backing weld by using laser welding, and then performing filling by using TIG (Tungsten Inert Gas) welding; vibration aging; by means of the method, the welding efficiency is improved, welding deformation is reduced, and the overall profile precision is guaranteed.

The utility model discloses a sodium ion battery cap welding device, which relates to the technical field of laser welding and comprises a workbench, two sliding rods are fixedly connected to two sides of the axis of the top end of the workbench, a first tray is slidably connected to the outer walls of the sliding rods, and the axis of the first tray corresponds to the axis of the workbench. A plurality of battery fixing pieces are fixedly installed at the positions, close to the edge, of the top of the first tray at equal intervals, a cantilever is fixedly connected to one end of the top of the workbench, and a second tray is fixedly connected to the bottom of the tail end of the cantilever; a plurality of battery welding assemblies corresponding to the battery fixing pieces are fixedly connected to the positions, close to the edge, of the bottom of the second tray at equal intervals. According to the technical scheme provided by the utility model, the laser welding technology is matched with the balls, so that the laser welding head can rotate around the sodium ion battery cap at a constant speed, the cap can be uniformly welded on the battery, and the defective product occurrence probability that the cap falls off due to single-point welding or non-uniform welding is reduced.

The invention discloses SnCu alloy laser soldering paste and a preparation method thereof.The raw materials of the SnCu alloy laser soldering paste comprise soldering powder and flux paste, the soldering powder comprises Cu-coated Sn metal powder and silver metal powder, and the flux paste comprises Cu-coated Sn metal powder and silver metal powder; the flux paste comprises modified rosinyl carboxylic acid, a modified rosinyl acrylate polymer, a solvent, a wetting agent, organic amine, an anti-oxidation and anti-tarnishing agent and a thixotropic agent. According to the SnCu alloy laser soldering paste, wetting and diffusion of alloy powder can be effectively promoted through cooperation of all the components, and meanwhile oxidation and pollution in the welding process are reduced; the method can be widely applied to the fields of consumer electronics precision assembly, automotive electronics high-reliability welding, new energy equipment packaging, medical / aerospace extreme environment devices, optical communication core modules, industrial precision devices and the like, and micron-sized precise welding, high-reliability connection and the like are achieved.

The present disclosure relates to methods for joining a first component to a second component with a laser welded lap joint. The laser seam of individual welds is substantially G-shaped. The weld seam comprises a substantially circular portion and a substantially straight portion at an end of the substantially circular portion, the substantially circular portion having a radius and corresponding to a circular arc around a circle centre with a central angle of 270º - 350º, and the substantially straight portion extending radially to the circle centre. The methods may be practiced on blanks prior to forming or on already formed components. The present disclosure further relates to weld assemblies obtained with such methods.

To provide a laser light-transmitting side member that offers superior laser weldability and enables strong laser welding.SOLUTION: A resin composition for laser welding contains, based on 100 pts.mass of a transparent thermoplastic resin (A), 0.000001-0.05 pt.mass of at least one metal boride (B1) selected from the group consisting of La, Ce, Pr, Nd, Tb, Dy, Ho, Y, Sm, Eu, Er, Tm, Yb, Lu, Sr and Ca, or at least one tungsten oxide (B2) selected from potassium tungsten oxide, rubidium tungsten oxide, cesium tungsten oxide, and thallium tungsten oxide. The resin composition for laser welding is applied for laser light-transmitting side members.SELECTED DRAWING: None

A system includes a laser welder configured to weld a first steel workpiece to a second workpiece at an interface between them. The workpieces may have similar or dissimilar compositions and / or thicknesses. A filler wire may be used to fill a gap at the interface and / or provide a weld joint composition that accounts for the intrusion of aluminum coating from the workpiece(s) into the weld joint. The laser welder's laser beam may be laterally offset from the interface toward one of the workpieces (e.g., a thicker or stronger of the workpieces).

The invention provides a welding auxiliary device for building construction, and belongs to the technical field of building construction, the welding auxiliary device for building construction comprises a welding supporting table, two clamping assemblies, a leveling assembly, a first driving assembly, a second driving assembly and a laser welding head, the two clamping assemblies are arranged on the upper portion of the welding supporting table and are oppositely distributed, and the leveling assembly is arranged on the welding supporting table; the two clamping assemblies are fixedly arranged on the upper portion of the welding supporting table and used for clamping two steel bars to be welded, a first U-shaped support plate is fixedly arranged on the upper portion of the welding supporting table and located between the two clamping assemblies, and the leveling assembly and the laser welding head are arranged on the inner side of the first U-shaped support plate. Compared with the prior art, when the two steel bars are welded into a whole, the welding faces of the two steel bars can be leveled in advance, so that the two steel bars can be accurately and comprehensively butted in a linear state in the subsequent welding process, and the welding quality of the steel bars is improved.

The invention discloses a riveted battery cover plate which is characterized by comprising a top cover piece, an anti-explosion valve and an anti-explosion valve protection cover, a first through hole is formed in the middle of the top cover piece, a mounting layer hole is formed in the first through hole, the anti-explosion valve is sleeved with the mounting layer hole, the periphery of the anti-explosion valve is connected with the top cover piece through a first laser welding seam, and the first laser welding seam is formed in the front face of the top cover piece; an annular groove is formed in the top cover piece and located on the periphery of the installation layer hole, an anti-explosion valve protection cover is sleeved with the annular groove, a second through hole is formed in the upper end of the anti-explosion valve protection cover, and a flange is arranged on the outer side wall of the lower end of the anti-explosion valve protection cover. The first laser welding seam of the anti-explosion valve and the top cover piece and the second laser welding seam of the anti-explosion valve protection cover and the top cover piece are arranged on the front face of the top cover piece, liquid electrolyte can be effectively prevented from corroding the welding seams, the safety of the new energy battery is improved, and the service life of the new energy battery is prolonged; and the positive / negative pole is connected with the top cover sheet and the positive / negative connecting sheet in a riveting manner, so that the time and the cost for additionally welding the existing positive / negative connecting sheet are saved.

Automatic tracking welding equipment is used for welding a side plate of a smoke exhaust ventilator and comprises a welding platform, a first positioning table and a second positioning table are arranged on the welding platform, pressing mechanisms are arranged above the first positioning table and the second positioning table respectively, a guide rail is fixedly arranged at the front end of a welding frame, a welding mechanism is movably assembled on the guide rail, and the welding mechanism is arranged on the welding frame. The welding mechanism comprises a movable lifting mechanism and a tracking mechanism, and a transfer clamping mechanism, a turnover mechanism and a controller are further fixedly arranged on the welding platform. Through the driving mechanism and the compacting mechanism, splicing of the outer side plate and the connecting plate on the first positioning table and splicing of the connecting plate and the inner side plate on the second positioning table are achieved correspondingly, traditional manual side plate splicing and manual welding are replaced in the process, and the welding seam track can be automatically recognized through the tracking mechanism; the position and the angle of the laser welding gun can be adjusted in real time according to the track of the welding seam, the production efficiency of the side plate is improved, and the welding strength of the side plate is guaranteed.

The utility model relates to a clamp for laser welding of a lithium battery cover plate. The welding device comprises a welding base, a supporting table, a clamping assembly, a pressing plate located on the upper side of the supporting table and arranged in an up-down sliding mode relative to the supporting table, and a cover plate tool. The cover plate tool comprises a tool base, a horizontal supporting face arranged on the upper side of the tool base, two movable strips elastically installed in the tool base and a plurality of positioning pins arranged on the supporting face, lower grooves are correspondingly formed in the portions, around the positioning pins, of the supporting face, a plurality of positioning grooves are formed in the upper surfaces of the movable strips, and the positioning pins are arranged in the lower grooves. And the pressing plate can press the lithium battery cover plate on the supporting surface. According to the cover plate tool, a plurality of lithium battery cover plates can be clamped and fixed at a time, and after welding is completed and the pressing plate is lifted, the movable strips can automatically bounce upwards and reset, and the lithium battery cover plates on the movable strips are ejected out of the positioning pins, so that the lithium battery cover plates on the cover plate tool can be easily shaken off, and the efficiency of replacing the lithium battery cover plates is improved.

The utility model relates to the technical field of auxiliary machining mechanisms of laser welding water-cooling plates, in particular to a water-cooling heat dissipation mechanism of a laser welding water-cooling plate. The water-cooling plate laser welding device adopts a bottom plate, a support connected to the bottom plate, a water-cooling heat dissipation system connected to the top of the support, a plurality of water-cooling plate positioning assemblies connected to the periphery of the top of the water-cooling heat dissipation system and a plurality of pressing air cylinders connected to the periphery of the bottom plate, and when the water-cooling plate laser welding device is used, the water-cooling heat dissipation system bears a water-cooling plate to be subjected to laser welding; the multiple water cooling plate positioning assemblies are used for positioning and clamping the water cooling plate to be subjected to laser welding, dislocation of the water cooling plate is avoided, then the multiple pressing air cylinders are used for pressing the water cooling plate to be subjected to laser welding, and the distortion degree of the water cooling plate due to too high temperature is reduced to a certain degree; the water-cooling heat dissipation system dissipates heat of the water-cooling plate to be subjected to laser welding, so that heat of the water-cooling plate is rapidly taken away by the water-cooling heat dissipation system, and the phenomenon that the water-cooling plate is distorted and deformed due to too high temperature is avoided.