181results about How to "Improve welding stability" patented technology

The invention discloses a tubular pile welding device, and relates to the technical field of tubular pile welding. Comprising a guide rail, an automatic walking trolley, a lifting mechanism, a clamping mechanism and a welding gun, the automatic walking trolley is hung on the guide rail, the lifting mechanism is arranged in the automatic walking trolley, a vertically-arranged mounting plate is arranged on the lifting mechanism, the clamping mechanism is arranged at the bottom of the mounting plate, and the welding gun is mounted on the clamping mechanism and located in the radial direction of a tubular pile; a control panel is arranged on the automatic walking trolley, the control panel is electrically connected with the automatic walking trolley and the lifting mechanism, the supporting mechanism comprises a supporting rod and a steel ball roller, the supporting rod is parallel to the welding gun, one end of the supporting rod is installed at the lower end of the installation plate, and the steel ball roller is installed at the other end of the supporting rod. And a steel ball of the steel ball roller is propped against the upper-section pipe pile. By arranging the supporting mechanism, the welding gun is effectively prevented from slightly shaking towards the inner side, and the welding stability is improved.

The invention discloses a stainless steel laser welding parameter optimization method based on a dynamic annular scanning path. The stainless steel laser welding parameter optimization method comprises the steps that S1, welding parameter setting is initialized to be suitable for controlling welding heat distribution; s2, measuring the material thickness of the welding area of the stainless steel workpiece before welding; s3, the scanning path layer number and the progressive speed are determined according to the welding parameters; s4, the welding control system adjusts welding parameters according to the temperature monitoring data; s5, the laser welding control system adjusts the layer number, the progressive speed and the scanning path radius of the dynamic annular scanning path in real time; s6, the scanning amplitude, the scanning frequency and the welding speed are optimized in real time; and S7, after welding is completed, quality detection is conducted on a welding seam, and detection data are compared with a preset welding quality standard. According to the method, accurate control over welding heat input, remarkable improvement of the welding seam quality and comprehensive optimization of the welding efficiency are achieved.

The invention relates to a repair welding repair method for casting defects of an equiaxed crystal high-temperature alloy structural part, belongs to the technical field of welding repair, and solves the problems that in the prior art, the repair welding success rate of the casting defects of the equiaxed crystal high-temperature alloy structural part is low, the repair welding result stability is poor, and the repair welding accessibility of local narrow parts is poor. The invention discloses a repair welding repair method for casting defects of an isometric crystal high-temperature alloy structural part. The repair welding repair method comprises the following steps that S1, defects are removed in a mechanical mode, and grooves are machined; s2, cleaning before welding; s3, the structural part is placed in a vacuum argon-filled welding box; s4, arc striking welding, wherein the welding process passes are arranged as follows: (1) after arc striking, 2-4 seconds are used firstly to enable the base metal to form a molten pool; (2) adding wires into the molten pool, and slowly feeding the wires; 3, welding spots are fully stacked through fractional wire feeding, and annular arc conveying is carried out; (4) the electric arc is slowly conveyed for a circle along the weld toe; (5) ending; and S5, performing fluorescence and X-ray detection after cooling. The casting defects of the isometric crystal high-temperature alloy structural part are efficiently and stably repaired.

The embodiment of the invention relates to the field of photovoltaic technology, and provides a back contact photovoltaic module, which at least can improve the efficiency of the back contact photovoltaic module. The back contact photovoltaic module comprises a battery body and an insulating part, a first surface of the battery body is provided with a plurality of main grids and a plurality of fine grids, and the plurality of fine grids comprise first fine grids and second fine grids which extend along a first direction and are alternately distributed along a second direction; the plurality of main grids comprise first main grids and second main grids which extend along the second direction and are alternately distributed along the first direction, and each main grid comprises a main grid body and a welding part which are alternately connected; the insulating parts are located on the first surface and at least cover the ends, close to the second main grids, of the first fine grids and the ends, close to the first main grids, of the second fine grids, and the insulating parts located on the two sides of the main grid body in the first direction and closest to the welding parts are first insulating parts. The rest of the insulating parts located on the two sides of the main grid body in the first direction are second insulating parts, and the distance between the first insulating parts is smaller than the distance between the second insulating parts in the second direction.

The invention discloses a welding quality monitoring method and platform for an electro-tricycle frame, and relates to the technical field of welding quality monitoring. The method comprises the steps that three-dimensional scanning is conducted on a frame component of an electro-tricycle, and the welding requirement is determined; welding parameter analysis is conducted, and a combined welding parameter sequence under the periodic sequence is determined; positioning personalized monitoring characteristics of each welding stage in a welding period, and configuring a self-attention sequence; welding data fragments are determined; and abnormal welding judgment and feedback decision analysis are carried out. The technical problems that in the prior art, the whole-period intelligent precise control and dynamic optimization are difficult to achieve in the electric tricycle frame welding process, the welding quality is uneven, the welding efficiency is low, and the welding process stability is insufficient are solved. The technical effects that intelligent precise control and dynamic optimization of the whole period of the welding process of the electro-tricycle frame are achieved, and the welding quality, the welding efficiency and the welding process stability are improved are achieved.

The bimetallic welding method comprises the steps that a plurality of annular grooves are formed in the surface, welded to a copper plate, of a steel base body, and a plurality of annular protrusions are formed on the surface of the steel base body; the steel substrate is placed on the lower electrode, and the copper plate is placed on the annular protrusion on the surface of the steel substrate; an upper electrode is placed on the copper plate, and set pressure is applied to the upper electrode; after the set pressure is reached, electrifying the upper electrode, and heating the annular bulge on the surface of the steel substrate to a molten or plastic state according to the generated resistance heat, so that the annular bulge is combined with the copper plate to finish welding; according to the double-metal welding method, the high-pressure energy storage welding process is used for replacing an original silver welding process using precious metal such as silver, and the cost is greatly reduced. Brass is used for welding, the welding method can be applied to the working condition higher than 400 bar, the abrasion resistance is high, and the product performance is improved.

The utility model discloses visual inspection and bus bar welding equipment and a photovoltaic module production line, and belongs to the technical field of photovoltaic module production, the visual inspection and bus bar welding equipment comprises a conveying mechanism, a portal frame assembly, a welding mechanism and a detection mechanism, a battery piece and a welding strip of the photovoltaic module are visually detected through the camera module before welding, laser welding is carried out through the laser device after welding points of a bus bar are recognized and positioned, non-contact welding of the bus bar is achieved, the welding stability and welding precision of the photovoltaic module are effectively improved, and the welding quality of the photovoltaic module is improved. And the cracking rate of the photovoltaic module is reduced. According to the visual inspection and bus bar welding equipment and the photovoltaic module production line, the design is reasonable, visual inspection and bus bar welding are integrated in one procedure, an independent visual inspection or bus bar welding station does not need to be arranged, the equipment is simpler, and meanwhile the machining efficiency is improved.

The double-gun automatic welding device comprises a first welding multi-angle adjusting mechanism, a second welding adjusting mechanism, a displacement driving mechanism, an aligning clamp mechanism, a touch control unit and an electrical unit which are distributed and connected based on a rack. The rack is provided with a workbench panel and a movable panel which is partially sectioned and can be controlled to turn over; wherein the two spatially distributed welding guns are driven to perform welding under multi-directional displacement, displacement rotation, telescopic feeding and axial rotation, the two welding guns can be matched with each other to perform synchronous welding or independently controlled asynchronous welding, and the displacement driving mechanism and the aligning clamp mechanism are matched with each other to perform control such as clamping, displacement angle adjustment and rotation on a workpiece. All the parts are controlled in parallel through the touch control unit and the electrical unit, so that multi-angle adjustment of a weldment and a welding gun is achieved, the welding operation is changed from manual operation to mechanical operation, and the machining efficiency and the welding stability are improved advantageously.

The utility model discloses soft package battery module welding equipment which comprises a base rack, a welding clamp unit and a laser galvanometer three-axis movement unit, the welding clamp unit and the laser galvanometer three-axis movement unit are arranged on the base rack, and the welding clamp unit is provided with a conveying roller assembly, a first three-axis movement assembly, a jacking rotating assembly and a first stand column. A single-side tab battery module or a double-side tab battery module needing to be welded is loaded on the tray assembly, and the jacking rotating assembly comprises a first large plate, a second large plate, a first connecting piece, a first mounting plate, a linear bearing, a guide column, a second mounting plate, a rotating driving piece and a jacking driving piece. According to the automatic welding machine, the three-axis pressing head assembly automatically focuses to achieve chip pressing in sequence, the three-axis galvanometer assembly automatically focuses to achieve automatic welding in sequence, and manual point location is saved.

The invention discloses an automatic welding device for metal glasses frame machining, and relates to the technical field of welding devices, the automatic welding device comprises a top frame and a welding head, a rotating mechanism is arranged on the top frame, and the rotating mechanism comprises a main rotating assembly, is arranged on the top frame and is used for overturning and discharging welded glasses frames and accessories; by means of the designed rotating mechanism, a glasses frame and a middle beam accessory are placed on an electromagnetic suction plate in the mold frame and sucked and fixed through the electromagnetic suction plate in the using process, and in the welding process, the mold frame is driven by a driving motor to rotate so as to drive the glasses frame and the middle beam accessory to synchronously rotate by 180 degrees; different positions between the glasses frame and the middle beam accessory are welded, the welding effect and the welding firmness between the middle beam accessory and the glasses frame are improved, and the glasses frame and the middle beam accessory which are welded are conveniently discharged by rotating and overturning the rotating plate and the mold frame.

The present invention discloses an auxiliary device for circumferential seam welding of large pressure vessels, relates to the field of welding technology, and comprises two welding auxiliary devices, wherein a connecting assembly is arranged between the two welding auxiliary devices, and a guiding transmission assembly is arranged between the two welding auxiliary devices; by starting a connecting motor, a threaded shaft can be driven to rotate, so that two groups of welding auxiliary devices carrying pressure vessels gradually approach each other, and at the same time, under the cooperation of the guiding transmission assembly and the supporting assembly, two groups of supporting plates can be driven to contact the ground to support the ground; during the welding process of the pressure vessel, if it topples due to an operational error, the support of the two groups of supporting plates can greatly reduce the probability of the welding auxiliary equipment tipping over, thereby improving the safety in the welding operation; and the provision of the wear-resistant plate can prevent displacement during the welding process of the pressure vessel, thereby greatly improving the welding stability.

The utility model relates to the field of welding robots, in particular to a welding gun fixing frame of a welding robot. The technical problems that according to an existing welding robot, due to the fact that the welding angles of different workpieces are different, the optimal welding angle and position are difficult to provide when a limiting frame fixes a welding gun for welding, welding is uneven or the quality of a welding seam is poor, the overall welding quality is reduced, and the strength of a welding structure is affected are solved. According to the technical scheme, the welding gun fixing frame of the welding robot comprises a supporting base, a supporting assembly, an adjusting assembly and a moving assembly; the welding gun is adjusted by combining the rotating rod with the clamping block connecting sleeve rod, the welding angle of the welding gun is accurately adjusted so as to adapt to different types of welding seams and workpieces, meanwhile, the clamping block connecting rotating rod and the fixing block are fixed, the stable and reliable welding angle is kept, looseness or change is not prone to occurring, and the welding quality and stability are improved; the telescopic rod is connected with the auxiliary frame to assist in fixing the welding guns with different lengths along the inside of the sleeve rod.

The invention discloses a welding gun for argon arc welding, and belongs to the technical field of welding guns for surfacing, the welding gun comprises a welding torch, an electrode mounted in the welding torch and a welding wire conveying device synchronously moving with the electrode, a first through hole is formed in the electrode, and the first through hole extends in the axial direction of the electrode and penetrates through the two ends of the electrode; the welding wire conveying device comprises two wire feeding pipes used for conveying welding wires, all the wire feeding pipes are located on the same side of the welding direction, the two wire feeding pipes are symmetrically arranged relative to the electrode, and the tail ends of all the wire feeding pipes point to the electrode; compared with a double-tungsten-electrode welding gun, the size of the welding gun can be reduced, and the welding gun is suitable for welding small-pipe-diameter workpieces; compared with a solid tungsten electrode, the hollow tungsten electrode can reduce the arc pressure in the welding process in the same large-current welding process so as to reduce the forming probability of a hump weld bead; the welding efficiency can be improved, the dilution rate can be reduced, interference to welding arcs can be reduced, and the welding stability is improved through double-path wire feeding.

The invention belongs to the technical field of electronic reconnaissance, and discloses an ultra-wideband radio frequency receiving front-end SIP module system based on HTCC, which comprises a three-dimensional package for signal transmission, and the three-dimensional package comprises a BGA layer, a package internal signal transmission layer, a top microstrip wiring and a device placement layer; the miniaturization advantage is obvious: the packaging substrate is formed by sintering aluminum oxide ceramic at high temperature, and the packaging substrate has 12 layers and is small in size. And the system integration degree is high: a single SIP module can be integrated with radio frequency front-end systems such as an amplitude limiter, a radio frequency switch, a filter, a low noise amplifier, a digital control attenuator and the like, so that related function indexes are realized. According to the radio frequency transmission line and power supply structure design, the structure comprises a radio frequency signal transmission line and a power supply distribution line. Wherein the routing of the radio frequency layer adopts a quasi-coaxial-strip line-quasi-coaxial structure, and good signal transmission can be realized in a frequency band of 2-10GHz.

The utility model discloses a workpiece welding positioning and clamping device, which relates to the technical field of workpiece welding, and is characterized by comprising two groups of support frames, a connecting frame plate is arranged between the two groups of support frames, and two groups of placing bedplates which are respectively positioned between the two groups of support frames are arranged above the connecting frame plate; a fixing frame is arranged on the placing table plate, and a pressing and fixing plate moving up and down is arranged between the placing table plate and the fixing frame. According to the device, two groups of welded workpieces can be fixedly clamped, so that the situation that a worker needs to hold the workpieces by hands for welding can be avoided, the alignment accuracy of the workpieces is higher, and the forming degree of products is better.

The invention discloses a manufacturing method of an LNG storage tank, the manufacturing method is used for manufacturing the LNG storage tank, the manufactured LNG storage tank comprises an inner lining layer and a shell layer, the outer side of the inner lining layer is coaxially sleeved with the shell layer, horn-shaped first through openings are formed in the axis positions of the two ends of the inner lining layer, and straight-barrel-shaped second through openings are formed in the axis positions of the two ends of the shell layer. According to the detachable and maintainable LNG storage tank, the shell layer and the lining layer which are separated are arranged and assembled with the mounting end and the reinforcing layer to form the detachable and maintainable LNG storage tank, and the problem that a gap exists between the lining and the shell layer, so that a combined structure is not firm is solved; the machining precision is improved in cooperation with welding equipment, the effect of facilitating assembly and later maintenance is achieved, the maintenance cost is greatly reduced, a protection structure is formed by a protection rod, an installation nut, a short shaft ring buckle and a cable piece, the structural connection strength of the shell layer is enhanced, the protection effect is provided, and the safety is greatly improved.

The high-strength three-way welding connection structure for the hydrogen conveying pipeline belongs to the field of three-way welding and comprises a base, two sliding grooves are formed in the upper surface of the base, first motors are fixed to the left side and the right side of the base correspondingly, and output shafts of the first motors penetrate into the sliding grooves and are fixedly connected with first screw rods; vertical frames are in threaded connection with the outer surfaces of the first screws, second motors are fixed to the opposite sides of the two vertical frames, and the opposite ends of output shafts of the two second motors penetrate to the opposite sides of the two vertical frames correspondingly. Supporting is provided from the inner wall of the three-way pipe through the supporting rollers, the transverse pipe positioning mechanism applies clamping force from the outer wall through the clamping blocks, a double-positioning structure of inner supporting and outer clamping is formed, it is ensured that three ports of the three-way pipe are strictly coaxial, and welding deflection is avoided; the clamping force can be automatically adjusted according to the small difference of the pipe diameters of the three-way pipes, the three-way pipes of different specifications can be rapidly matched through linear driving of the sliding frame and the air cylinder, and the universality is remarkably improved.

The invention provides a smooth aluminum sheath welding method, and relates to the technical field of smooth aluminum sheath cable manufacturing, and the smooth aluminum sheath welding method comprises the following steps: S1, cleaning a to-be-welded smooth aluminum strip and a cable end; s2, the smooth aluminum strip and the cable end are conveyed to a wrapping mechanism through a feeding mechanism to be processed, and the smooth aluminum strip is curled into a tubular shape and wraps the outer surface of the cable; s3, welding treatment is conducted through a double-welding-gun mechanism, and welding sealing is conducted on a gap of the tubular smooth aluminum sheath; and S4, after welding is completed, the cable with the smooth surface and the welded aluminum sheath is conveyed to a cooling mechanism to be subjected to welding seam cooling treatment to the room temperature, and the welding seam is polished and cleaned. S5, meanwhile, the automatic monitoring system records and monitors the welding arc and welding seam conditions; s6, packaging treatment is carried out, a layer of heat-shrinkable sleeve is packaged at the weld joint firstly, and it is ensured that the weld joint is completely covered; the alternating current welding mode and the direct current welding mode of the double-welding-gun mechanism are cooperated, so that the continuity and the flatness of welding seams are improved.

The utility model discloses a special-shaped nut welding positioning device which comprises a spot welding machine, a supporting and driving supporting frame is fixed on the front surface of the spot welding machine, a cavity is formed in the supporting and driving supporting frame, an adjusting piece is arranged in the cavity in a rotating mode, a supporting piece is fixed at the top end of the adjusting piece, and a driving piece is arranged in the top end of the supporting piece in a sliding mode. A rotating clamping plate is rotatably arranged at the top end of the driving part, a driven stand column is fixed to the bottom end of the rotating clamping plate, a driven roller is rotatably arranged at the bottom end of the driven stand column, a cavity is formed in the rotating clamping plate, a sliding clamping plate is slidably arranged at the top end in the cavity, and a driving screw is rotatably arranged at the bottom end in the cavity. The driving wedge block and the driven wedge block in the driving piece are matched with each other, the driven roller is pushed through the action of the inclined face, then the rotating clamping plate is driven to rotate, the angle of the special-shaped nut is flexibly adjusted, the angle adjusting process is stable and accurate, and the welding positioning accuracy is improved.

The invention belongs to the technical field of laser welding defect prediction, and discloses an aluminum alloy laser welding seam three-dimensional solidification crack sensitivity prediction method, which comprises the following steps: accurately calculating a lap joint temperature / solid fraction (TB / fB) and a T-fS curve of adjacent dendrites of a polycrystalline structure in a welding seam pasty area through laser welding macro-micro thermal mass coupling simulation; a novel solidification crack sensitivity prediction method fusing microstructure information is provided, accurate prediction of the solidification crack sensitivity of aluminum alloy laser welding is achieved, the solidification crack inhibition mechanism that an ultra-fine equiaxed crystal structure shortens an intergranular liquid phase channel and reduces solute segregation is disclosed, and the stability of the solidification crack sensitivity is improved. The method has very important engineering application significance for realizing solidification crack-free welding of the high-strength aluminum alloy thick-wall component.

The application discloses an automatic welding production line for a tower crane standard section, comprising a workpiece pre-positioning device, a workpiece positioning device, a welding device, a feeding robot and a main rotating rod feeding-welded piece discharging device. The automatic welding production line has the advantages of less manual participation, high welding efficiency, high matching precision between the constituent workpieces, high welding precision, good welding quality, good welding stability and low production cost, and is favorable for being widely applied to the automatic welding of the circular tower crane standard section.

The invention discloses a CMT electric arc welding method for defect repair welding of a ZL114A aluminum alloy casting, and belongs to the technical field of defect repair of aluminum alloy castings. The method aims at solving the problems that an existing repair welding method for the ZL114A cast aluminum alloy is high in heat input, large in deformation and low in repair efficiency. The method comprises the following steps: firstly, aiming at defects of different sizes, machining the defects into regular spherical-crown-shaped grooves of different sizes by utilizing a cold machining method; an electric steel wire brush is used for polishing the inner wall of the groove and base metal around the groove, and surface stains and oxide skin are removed; the casting is placed on a welding workbench; robot CMT welding equipment is adopted for repair welding; and writing a welding gun repairing path on the robot demonstrator. And repair welding is carried out according to the following principles: repair welding is carried out by utilizing an Al-Si welding characteristic curve, a repair welding piece is preheated to 250-350 DEG C, shielding gas is started, and automatic repair is started according to the planned path, the wire feeding speed and the welding speed. By means of the method, high-quality repair welding seams without pores and cracks can be obtained.

The utility model discloses a circular tube welding auxiliary device which comprises a workbench, a support and a tube rotating assembly. The support and the tube rotating assembly are arranged on the workbench. The number of the supports is four, the supports are arranged between the round pipes to be welded and the workbench, and the number of the round pipes to be welded is two. Each support is of a semi-arc-shaped structure, rolling assemblies are arranged on the supports, each support is provided with 3-6 sets of rolling assemblies, and the rolling assemblies make rolling contact with a to-be-welded circular pipe. The two pipe rotating assemblies are connected with the two to-be-welded circular pipes correspondingly and rotate the to-be-welded circular pipes. The circular tube welding device solves the problems that when a circular tube is welded, the end face is not easy to align, axial movement is not easy to control, and circumferential rotation is inconvenient, and has the advantages of being high in accuracy and practicability.

The utility model relates to the technical field of welded pipes, and provides high-frequency induction welded pipe equipment which comprises a shell, a mounting plate and a rotating frame, a first air cylinder is mounted at the top of the inner wall of the shell, a top plate is mounted at the bottom of the first air cylinder, an output rod is mounted at the output end of the first air cylinder, and top blocks are mounted on the two sides of the top of the outer wall of the top plate. Sliding rods are mounted on the two sides of the bottom of the outer wall of the top plate, a mounting plate is mounted at the bottom of the top plate, an assembling plate is mounted on the outer wall of the mounting plate, and a motor is mounted at the top of the assembling plate. According to the equipment, rapid and stable telescopic movement is achieved through accurate movement of the first air cylinder and the output rod, so that the mounting plate is driven to move up and down, meanwhile, the rotating rod and the rotating frame driven by the motor enable the welding head to rotate rapidly and accurately, a steel pipe is welded efficiently, and the problem that the welding efficiency is insufficient is solved.

A laser welding device and method for sealing nails of large cylindrical batteries with adjustable local atmosphere belongs to the field of new energy vehicle battery welding technology. The device includes an outer shell fitted onto the top of the battery casing, a high-lens lens mounted on the top of the outer shell via a supporting frustum, an annular gas path structure disposed inside the outer shell, dividing the back of the outer shell into upper and lower chambers, a vacuum device connected to the upper chamber via a pipeline, and a dust removal device connected to the annular gas path built into the annular gas path structure via a pipeline. The annular gas path has multiple suction ports connected to the lower chamber. An elastic sealing ring is disposed in the lower chamber, and a centering ring is clamped between the elastic sealing ring and the battery casing. A sealing nail is installed on the inner ring of the centering ring. This method achieves reliable connection of sealing nails for large cylindrical batteries, improves welding quality, reduces welding defects, and solves the problem of low yield after welding sealing nails for large cylindrical batteries.

The invention provides a microstructure electrode capable of realizing solder confinement infiltration and a preparation method thereof, a radial microgroove structure, an annular microgroove structure and a parallel line microgroove structure are sequentially engraved on the surface of the electrode to form functional combinations of different microstructures, and the microstructure electrode capable of realizing solder confinement infiltration is obtained. Fine machining of the microstructures on the surface of the electrode and functional combination of different microstructures are adopted, the wettability of the welding flux is enhanced through the radial microgroove structures in the center area, the spreading shape of the welding flux is controlled through the annular microgroove structures in the edge area, overflowing of the welding flux is restrained, and diffusion of the welding flux is guided through the parallel line microgroove structures in the connecting area. Therefore, through mutual combination and accurate processing of the microstructures with different functions, confinement infiltration of the welding flux on the surface of the electrode is realized, and the welding quality of the electronic element and the electrode is optimized.

The present invention relates to the technical field of welding equipment, and specifically to a lightweight steel structure welding equipment, including a base, a side plate, a positioning plate, a first clamping structure, a driving mechanism and a second clamping mechanism. The present invention can enable multiple connecting plates to be equidistantly welded on an I-beam through a positioning unit, thereby reducing the time required for debugging and correcting the welding position of the connecting plates and improving production efficiency. Subsequently, an external motor is used to drive the driving mechanism to operate, so that the driving mechanism drives the first clamping mechanism to clamp and fix the I-beam, ensuring that the I-beam remains stable during the welding process, affecting the quality of welding. Two electric slides work to drive the second clamping mechanism and the connecting plate to slide to the right, and the lifting unit can enable the connecting plate to be vertically clamped and contact with the upper end face of the I-beam, thereby avoiding the problem of weld position misalignment caused by the inclination between the I-beam and the connecting plate, affecting the welding quality.

The invention discloses an intelligent automatic welding system for a beam-column structure and a welding method thereof, and relates to the technical field of welding. The invention aims to solve the problems that the adjustment range of the existing welding equipment is limited, so that a workpiece is easy to deviate in the clamping and assembling processes, the controllability of manual operation on the welding process is low, and the dual requirements of large-scale production on speed and precision cannot be met. The automatic welding device comprises a welding robot, a robot controller, a master control system, a positioner and a welding tool, a welding workpiece is clamped on the positioner through the welding tool, the positioner is used for achieving rotation of the welding workpiece, and the welding robot is arranged on one side of the positioner through a linear moving mechanism. The main control system controls the welding poses and welding parameters of the welding robot through the robot controller, and the main control system controls the displacement and moving parameters of the positioner, the welding tool and the linear moving mechanism. The method is used for intelligent automatic welding.

The invention discloses a manufacturing method of a flexible tubular membrane, which reliably improves the welding stability and further improves the use stability of the flexible tubular membrane. Two sets of ultrasonic welding heads are arranged on the peripheral area of a center guide rod in advance, and the method comprises the following steps that S1, the center guide rod is wrapped with a strip-shaped filter screen through a material conveying device; s2, covering the periphery of the central guide rod with the strip-shaped filter screen to form an overlapped part; s3, the two sets of ultrasonic welding heads are pressed on the areas on the two sides of the width position of the overlapped part through pressure, the width pressing areas, corresponding to the two ultrasonic welding heads, of the same overlapped part are not overlapped, and a gap is reserved; and S4, the two sets of ultrasonic welding heads are kept still, the overlapped parts are linearly output along with the formed flexible tubular membrane, the overlapped parts sequentially or simultaneously pass through the mutual pressing positions of the two sets of ultrasonic welding heads and the center guide rod, and after contact, the overlapped parts form two parallel welding seams due to ultrasonic welding high-speed friction.

The utility model provides semi-automatic pole welding equipment for a battery cell, which relates to the technical field of welding equipment and comprises a machine body, a laser welding head is arranged on one side of the machine body, a placing plate is arranged on one side of the machine body, a limiting device is arranged on one side of the placing plate, and a stabilizing device is arranged on one side of the machine body. The storage plate is provided with a limiting device, the limiting device comprises a rectangular frame, the rectangular frame is fixedly connected with the storage plate, a first circular hole is formed in one side of the rectangular frame, and a second circular hole is formed in one side of the rectangular frame. The situation that when a worker pushes the battery to the position below the laser welding head, the battery cell position of the battery is not completely located in the working area of the laser welding head, deviation is generated when the laser welding head welds a pole, and the welding quality is affected is reduced, and the positioning efficiency and the welding stability of the battery cell position are improved.