667 results about "Seam welding" patented technology

The invention discloses a welding robot system based on body sensing and an intelligent route generation method, and belongs to the technical field of robot welding, the welding robot system comprises a body sensing module, a fusion processing module, an intelligent route generation module and an execution feedback module, the body sensing module collects multi-modal data in parallel through multiple sensing units and preprocesses the multi-modal data; the fusion processing module combines a three-dimensional attention mechanism and digital twinning mapping to realize deep feature fusion, the intelligent route generation module outputs an adaptive path through planning-optimization-layered correction, and the execution feedback module constructs a full-closed-loop dynamic adjustment mechanism. By the adoption of the system and method, the problems that physical and virtual scenes are not synchronous, dynamic interference response is insufficient and path adaptability is poor in complex welding seam welding are accurately solved, and the welding path fitting degree and quality stability are remarkably improved.

The invention discloses a welding track planning method and device of a welding robot, the welding robot, a storage medium and a computer program product, and the method comprises the following steps: inputting point cloud data of a workpiece into a point cloud semantic segmentation model to obtain welding seam point cloud data of a linear welding seam of the workpiece; fitting the welding seam point cloud data to obtain a welding seam welding spot of the linear welding seam; welding spot fine adjustment and pose estimation are carried out on the welding spot of the welding seam, and the welding track of the linear welding seam is obtained. According to the scheme, the semantic segmentation model is used for processing the point cloud data, welding seam fitting and welding spot fine adjustment are carried out, the point cloud of the linear welding seam can be accurately recognized and extracted, the efficiency and accuracy of welding seam detection are improved, and the precision and adaptability of welding track planning are further improved.

The invention belongs to the technical field of fusion welding, and particularly relates to a method for planning multi-layer and multi-welding-seam welding parameters according to welding seam feature information, which comprises the following steps: 1) laser emitted by a 3D visual sensor is perpendicular to a welding seam and scans along the direction of the welding seam, and the 3D visual sensor scans welding seam data and transmits the data to a robot controller in real time; (2) the robot controller processes the weld joint data, the whole weld joint is subjected to multi-layer and multi-pass planning calculation, and the number of welding layers and the number of welding passes of each layer are planned; (3) the robot controller calculates the layer number and the channel number of a welding channel needing to be welded currently, a welding gun track coordinate set on a welding path and welding parameters corresponding to welding path points; and (4) the robot controller adjusts the welding track and the welding parameters in real time according to the step (1) to the step (3) in the current welding bead welding process, so that the purpose of multi-layer and multi-pass planning self-adaptive welding of the medium-thickness plate is achieved.

The invention relates to a high-temperature superconducting cable and a manufacturing process thereof, and belongs to the technical field of electric wires and cables.The cable comprises a supporting framework, a buffer layer, a three-phase superconducting composite layer, a shielding layer, a heat insulation layer and a sheath layer which are sequentially arranged from inside to outside; the heat insulation layer comprises at least two layers of corrugated pipes formed by continuous rolling and welding, and the corrugated pipes are of periodic concave-convex structures obtained by conducting continuous rolling and side seam welding on metal strips to form closed pipe bodies and then conducting embossing treatment on the closed pipe bodies. A woven reinforcing layer wrapping the peripheries of the corrugated pipes is further arranged in the heat insulation layer, and the adjacent corrugated pipes are connected through supporting pieces to form a vacuum interlayer. According to the application, the corrugated pipe formed by continuous coiling and welding is combined with the combined structure of the braided reinforcing layer and the supporting piece, so that the continuous production of the large-length high-temperature superconducting cable can be conveniently realized, and the problems of axial stress concentration and seam accumulation defects existing in a heat insulating layer of a traditional prefabricated sleeve pipe can be eliminated; and the air tightness stability of the vacuum interlayer of the large-length high-temperature superconducting cable is ensured.

A computer display support welding device comprises a main supporting frame and a to-be-welded pipe, a circular seam welding mechanism is arranged at the top of the main supporting frame, the circular seam welding mechanism conducts pre-cleaning and welding operation on the to-be-welded pipe through a plasma welding head, bottom supporting bases are arranged on the two sides of the main supporting frame, and an auxiliary righting mechanism is arranged on the side face of the main supporting frame. The centering and positioning mechanisms are arranged on the two sides of the auxiliary righting mechanism, the auxiliary righting mechanism controls the centering and positioning mechanisms to be close to or away from to-be-welded pipes, so that feeding or discharging of the to-be-welded pipes is completed, the centering and positioning mechanisms clamp and position the to-be-welded pipes, and the to-be-welded pipes located on the two sides are in the state that the central axes coincide. And the to-be-welded pipes on the two sides are controlled to move to the to-be-welded positions. And only the plasma welding head moves in the overall welding process, so that the device consumes less energy in the welding process, and the overall welding cost is reduced.

The invention belongs to the technical field of centrifugal pump production, particularly relates to an intelligent welding system and method for multi-stage centrifugal pump impeller machining, and aims at a combined impeller composed of a lower cover plate, an upper cover plate, a blade component, an upper pressing plate component, a lower pressing plate component and a locknut. The positioning rotary disc assembly is used for positioning the lower pressing plate component and the lower cover plate and driving the lower pressing plate component and the lower cover plate to rotate, the blade feeding assembly is used for installing the blade components on the lower cover plate one by one, the feeding mechanical arm is used for installing the upper cover plate above the blade components, and the rotating direction of blade parts in the blade components can be adjusted. After adjustment, the position of the lower cover plate is locked through the upper pressing plate component, a locknut is installed on the outer side of a screw rod, extending out of the lower pressing plate component, in the upper pressing plate component through a screw turning machine, and finally welding treatment is conducted on a welding inner seam / welding outer seam at the butt joint position of the lower cover plate and the upper cover plate through the inner seam welding assembly / outer seam welding assembly. And the rapid assembly requirement of the combined impeller is met, and the welding efficiency is high.

The invention relates to the technical field of metal net welding, in particular to intelligent metal net welding equipment which comprises a support, a seam welder and the like. A first electric sliding block is slidably connected to the support. A seam welder is fixedly connected to the first electric sliding block. According to the metal net edge rolling device, only one end of a metal net needs to be manually placed between the abutting rod and the clamping rod, then the metal net is automatically rolled into a cylindrical shape through the guide rod, manual edge rolling operation on the metal net is not needed, the manual labor amount is reduced, and the problems that due to manual operation, the two ends of the overlapped position of the metal net are prone to dislocation, and welding seams are inclined after welding is completed are solved. The problem that the metal net forms an irregular cylinder is solved; and the seam welding electrode wheel of the seam welding machine is used for rolling and welding the overlapped part of the metal net, so that the seam welding machine does not need to be manually held by hand for welding operation.

According to the welding equipment and the welding process for the longitudinal seam of the buckling long profile, the welding robot can alternately weld workpieces between the two welding stations, the utilization rate of the welding robot is higher, and higher production efficiency is guaranteed. The intermittent and symmetrical welding process is carried out through multiple sets of robots, unmanned welding of the long-strip-shaped workpieces is achieved, the labor intensity is reduced, the welding seam quality is guaranteed, the workpiece deformation amount is reduced, the repair rate is reduced, and the machining efficiency and the qualified rate are improved. The positioning and clamping mechanism can move automatically, and automatic dead-zone-free welding machining on the rotary workbench is effectively achieved. And a communication interface is reserved in electrical control of the equipment, so that the equipment can be directly connected with the workshop internet and transmit information, visual and intelligent management of the equipment is facilitated, and the production efficiency and the safety are greatly improved.

The invention belongs to the technical field of engine cylinder machining, and particularly relates to an aircraft engine cylinder machining device and method. The device is reasonable in design, all the components cooperate with one another, and the outer cylinder component is clamped through the outer cylinder clamping and conveying assembly and driven to move to the first butt joint station, the second butt joint station and the welding station; an inner cylinder clamping and positioning assembly arranged at the first butt joint station is used for clamping the inner cylinder component, and the inner cylinder component and the outer cylinder component are located at the butt joint position; a cover plate clamping and positioning assembly arranged at the second butt joint station is used for clamping the cover plate component, and the cover plate component and the outer cylinder component are located at the butt joint position; the welding assembly arranged above the welding station is used for fixing the outer cylinder component and the inner cylinder component in a spot welding mode and then fixing the outer cylinder component and the cover plate component in a full-seam welding mode, in this way, the welding assembly requirement of the combined type air inlet cover cylinder is met, and the combined type air inlet cover cylinder obtained through machining has the advantage of being high in structural strength.

The application discloses a large pipe welding device and relates to the technical field of pipe welding. The device comprises a welding table, two parallel guide rails fixedly connected to the top surface of the welding table, movable pipe pushers arranged at the two ends of the guide rails, and support members arranged on the two sides of the welding table and used for supporting the pipe. When the large pipe welding device supports the large pipe, the first support device and the second support device on the two sides of the welding table support the large pipe. When the large pipe is supported, the straight surface of the special-shaped support block faces the outer wall of the large pipe, the rotating rod one which is perpendicular to the large pipe rolls against the pipe wall, the pipe pusher facilitates the transverse movement of the large pipe, the two ends of the large pipe to be welded are aligned, the special-shaped support block is rotated during welding, the rotating rod two of the arc surface of the special-shaped support block rolls against the large pipe, the pipe pusher facilitates the rotation of the large pipe, and the ring seam welding is realized.

The invention relates to the technical field of low-temperature storage tank auxiliary welding equipment, in particular to a low-temperature storage tank inner tank longitudinal seam welding tool which comprises a machine base, a supporting structure, a welding base, an adjusting mechanism and at least one pair of correction guide rails. Each correcting guide rail is provided with at least one adjusting part, the adjusting parts are fixed to the inner tank when used, the adjusting parts on the same pair of correcting guide rails are correspondingly arranged, the welding head is arranged on the welding base and used for welding the longitudinal seam, the welding base is provided with two correcting bases, the two correcting bases are symmetrically arranged relative to the longitudinal seam, and the two correcting bases are symmetrically arranged relative to the longitudinal seam. The two correcting seats are arranged on the same pair of correcting guide rails in a sleeving mode, the distance between the two correcting seats is smaller than that between the same pair of correcting guide rails, and the adjusting mechanism is used for adjusting the distance between the same pair of correcting guide rails according to the width direct proportion of the longitudinal seam, so that the longitudinal seam can be shrunk through the correcting seats, and the welding quality can be improved.

The utility model discloses a straight seam welding device for a heavy conical pipe, which relates to the technical field of heavy steel pipe processing and comprises a ground rail, a welding door frame is arranged on the ground rail, a submerged arc welding gun is arranged on the welding door frame, a jig frame is arranged in the door frame, clamping arms are symmetrically arranged on two sides of the jig frame, clamping hydraulic cylinders are mounted on the clamping arms, and the clamping hydraulic cylinders are connected with the welding door frame. A supporting seat is fixedly arranged at one end of the jig frame, the jig frame is provided with a sliding rail parallel to the ground rail, a sliding seat is arranged on the sliding rail in a sliding mode, a driving mechanism enabling the sliding seat to slide along the sliding rail is arranged on the sliding seat in a matched mode, and a wedge block is arranged at the top of the sliding seat; the driving mechanism comprises a lead screw penetrating through the sliding seat, a synchronous belt is arranged at one end of the lead screw, and a driving motor is arranged on the synchronous belt; according to the utility model, the wedge block is driven by the driving motor to be inserted between the conical pipe and the jig frame, so that a welding bead is in a horizontal state, and the quality of a welding seam is further ensured.

The invention belongs to the technical field of air compression energy storage, and particularly provides a steel lining tailor-welding lining integrated trolley which comprises a needle beam assembly, a steel tile splicing assembly, a steel pipe joint assembling assembly, an intelligent welding assembly and a secondary lining assembly. The needle beam assembly comprises a needle beam main beam and a needle beam portal; the needle beam main beam is used for walking in the cavern; the needle beam portal can move in the longitudinal direction of the needle beam main beam. The steel tile assembling assembly, the steel pipe joint assembling assembly, the intelligent welding assembly and the secondary lining assembly are sequentially arranged on the needle beam portal in the longitudinal direction of the needle beam main beam. By means of the equipment, the processes of steel tile assembling and rounding, steel pipe joint assembling, longitudinal seam and circular seam welding, automatic positioning, automatic rounding and the like are integrated, full-process flow line construction of the manual gas storage chamber steel lining can be completed on one piece of equipment, the number of used equipment is greatly reduced, the labor intensity of workers is reduced, the construction efficiency is improved, the construction period is shortened, and the labor intensity of workers is reduced. And the construction cost is saved.

The utility model discloses a sheet metal part straight seam welding and polishing device which comprises a cutting table, two first supports are fixedly installed at the upper end of the cutting table and are symmetrically arranged, and pressing assemblies used for pressing sheet metal parts are arranged on the first supports. And a second support is arranged at the upper end of the cutting table, an electric sliding rail is arranged on the lower surface of the top of the second support, an electric telescopic rod is fixedly installed on the electric sliding rail, and a machining assembly used for welding and grinding the sheet metal parts is arranged at the lower end of the electric telescopic rod. According to the sheet metal part welding device, a connecting seam between two sheet metal parts can be quickly welded and polished after being welded, the sheet metal parts do not need to be transferred to other places to be polished, and the machining efficiency is greatly improved.

The invention provides equipment and a method for automatically and vertically assembling a rocket storage tank cylinder section wall plate. The equipment comprises a working machine head integrated with a friction stir welding machine head and a laser scanning locator, a back supporting assembly, a pressing claw clamping system, a workbench provided with an arc sliding groove and a driving roller, and an auxiliary sliding groove. An arc sliding groove, a driving rolling wheel, an auxiliary sliding groove and a pressing claw system are matched with one another, automatic assembly of the long-cylinder-section wall plate on the workbench can be efficiently completed, and the long-cylinder-section wall plates with different diameters and lengths are compatible; in the assembling process of the long cylinder section wall plate and in the two stages after assembling is completed, the laser scanning positioning instrument detects and discriminates assembling process parameters, and the assembling precision is improved. According to the longitudinal seam welding machine, the long cylinder section wall plates can be automatically assembled quickly and accurately, the assembling precision after assembling is detected, and longitudinal seam welding of the four long cylinder section wall plates is completed with high quality and high efficiency.

The invention relates to the technical field of welding machining, in particular to a girth welding device for automobile part machining, which comprises a girth welding mechanism, a pipe fitting clamping mechanism, a rotary driving mechanism and a cooling conveying mechanism, the pipe fitting clamping mechanism comprises a water bag fixing frame, a pair of expansion water bags are arranged on the water bag fixing frame at intervals, and the water bag fixing frame is provided with a water inlet and a water outlet; the expansion water bag is made of an elastic silica gel material, a pressurizing conveying pipe is installed in the middle of the water bag fixing frame, and the pressurizing conveying pipe is used for conveying pressurizing liquid into the expansion water bag so that the expansion water bag can expand and support the fixing pipeline from the interior. Pressurized liquid is conveyed to the expansion water bag, the water bag is evenly expanded to be attached to the inner wall of the pipe fitting, stable clamping force is provided, a cooling medium is continuously circulated in the welding process through the spiral cooling flow channel formed in the expansion water bag, accumulated heat on the inner wall of the pipe fitting is rapidly led out, and welding efficiency is improved. And the problems of radial shrinkage and circumferential cracking caused by thermal stress are obviously inhibited.

The utility model relates to the technical field of steel pipe welding, in particular to a submerged arc welding machine for steel pipe straight seam welding, which comprises a steel pipe placing seat, a welding mechanism arranged on the rear side of the steel pipe placing seat, and a welding flux recovery mechanism comprising a recovery cover positioned on the upper side of the steel pipe placing seat. And a scraping plate for removing slag shells is fixed at the bottom of the inner wall of the recovery cover. A supporting plate in the welding mechanism drives a welding flux box, a welding gun and a welding flux recovery mechanism to move synchronously, slag shells formed by the welding flux are scraped in the moving process of a scraper, the procedure of independently cleaning the slag shells is omitted, the used welding flux is sucked into a recovery cover through a fan, then the used welding flux enters a processing box through a suction pipe, and the welding flux recovery efficiency is improved. Impurities in used welding flux are screened out through the filtering plate, the treated welding flux is pumped into the welding flux box through the discharging pipe by the conveying pump, synchronous circulating recycling of the welding flux is achieved, repeated conveying is avoided, and time is saved.

The invention provides an ultrasonic moving seam welder which comprises a workbench, a plurality of supporting legs are fixed to the bottom of the workbench, a supporting base is installed on the workbench, a containing groove is formed in the supporting base, a lead screw is movably arranged in the containing groove, and a moving table is slidably arranged in the containing groove; the screw rod penetrates through the movable table and is in threaded connection with the movable table, an ultrasonic roll welding system is installed on the movable table and comprises an ultrasonic generation system, an ultrasonic vibration system, a roll welding execution system and a pressurization system, two side seats are symmetrically fixed to the movable table, a sliding groove is formed in one side of each side seat, and the sliding grooves are communicated with the ultrasonic generation system. A sliding seat is slidably arranged in the sliding groove, side rods are fixed to the two sides of the sliding seat through connecting rods, and auxiliary pressing wheels are movably arranged on the side rods, and the problems that when traditional equipment is used for welding, deformation of a welding area is difficult to control, and the flatness of a welding seam is affected are solved.

The invention discloses an automatic reinforcing ring welding system and method, and relates to the technical field of automobile manufacturing, the automatic reinforcing ring welding system comprises a bearing assembly, a welding assembly and a welding assembly, the bearing assembly has an unfolded first state and a closed second state, and in the second state, the bearing assembly positions and clamps a reinforcing ring, so that a butt joint seam of the reinforcing ring is closed and attached to the outer wall of a tank body; and the driving assembly is in transmission connection with the bearing assembly, and when the tank body is placed on the driving assembly, the transmission assembly drives the bearing assembly to be switched to the second state. Through linkage between the bearing assembly and the driving assembly, when the tank body is placed, the bearing assembly can be automatically triggered so that the bearing assembly can be switched from the unfolding state to the clamping state, and the positioning process does not need to be manually intervened; according to the welding method, the continuous operation of reinforcing ring butt seam welding and tank body girth welding is integrated, the procedure switching and welding gun calibration links of two independent welding strokes in the prior art are omitted, the single-time welding period is shortened, and the welding efficiency is improved.

The invention discloses an automatic circular seam welding device for a large sewage storage tank, and relates to the technical field of welding, the automatic circular seam welding device comprises a machining table, and a positioning plate is fixedly connected to the top of the machining table. A workpiece is located on the outer side of the roller by means of self-weight, the radial position of the workpiece is preliminarily limited by the roller, the springs and the damping dampers which are distributed at equal intervals are installed between the buffering cushion block and the limiting frame, the buffering protection effect is achieved, welding accuracy is improved, manual operation is replaced by automatic welding through cooperation, and welding efficiency is improved. Welding parameters are stable, the quality far exceeds that of manual work, workpieces with different diameters and wall thicknesses can be rapidly adapted by replacing a limiting roller, a gear disc and an adjusting shifting block, the equipment adjusting time is greatly shortened, meanwhile, the multiple functions of groove machining, welding, environment purification, real-time monitoring and the like are integrated, and the intelligent management level is improved.

The invention relates to the technical field of welding equipment, and discloses movable multi-oil-nozzle welding equipment which comprises a lathe bed, a spindle box assembly, a tailstock mechanism, a material supporting base, a stand column, a wire feeder assembly, a vertical sliding rail and a welding gun positioning system. By means of head-tail cooperative clamping and multi-axis linkage design, high-coaxiality clamping of workpieces and accurate positioning of a welding gun are achieved; the V-shaped bracket automatically avoids, the wire feeder supplies wires at a constant speed, the welding gun can be finely adjusted in real time, and continuous and automatic girth welding of the multi-oil-nozzle workpiece is completed. According to the method, the welding efficiency and quality can be remarkably improved, the method adapts to various workpiece shapes, manual intervention is reduced, and high universality and expansibility are achieved.

The invention discloses a multi-station automatic welding device for a reduction tank for magnesium smelting and a welding method thereof.The multi-station automatic welding device for the reduction tank for magnesium smelting comprises a mounting frame, a placing plate, a welding frame, a clamping mechanism and a welding mechanism, and the placing plate and the welding frame are both connected to the mounting frame. The reduction tank part is installed on the clamping mechanism, then the adjusting assembly of the welding mechanism drives the adjusting plate to move, the welding part is accurately aligned to the welding seam position of the splicing seam formed between the adjacent parts for welding, manual part carrying and manual welding position adjusting are not needed in the whole process, the labor intensity of operators is reduced, and the welding efficiency is improved. In addition, errors caused by manual operation are avoided, the qualified rate of welding seams is increased, three key circumferential welding seams of the reduction tank can be aligned at the same time through a plurality of adjusting plates and welding pieces of the welding mechanism, multi-welding-seam synchronous welding is achieved, and compared with traditional manual single-welding-seam welding, the single-tank welding time is greatly shortened.

The utility model relates to the technical field of metal shell section machining, in particular to a metal shell section straight seam welding device which comprises a base, and supporting pads are installed at the four corners of the bottom of the base. A fastening bolt is rotated to drive a second arc-shaped clamping plate to move towards two first arc-shaped clamping plates to limit and fix the metal shell ring, so that the metal shell rings with different sizes can be conveniently fixed; a first servo motor drives a first threaded rod to move to drive a transverse plate to move, so that the welding device body is conveniently moved to the position over a welding seam of the metal shell section; and a second servo motor drives a second threaded rod to rotate and synchronously drives a movable block to move outside the second threaded rod so as to drive the welding device body to conduct straight seam welding on the metal shell ring, and therefore the problem that a traditional straight seam welding device for the metal shell ring is inconvenient to conduct straight seam welding on metal shell rings of different sizes is effectively solved.

The invention discloses a welding seam welded area segmentation method and system based on a semantic segmentation network and depth geometric constraint, and relates to the technical field of welding seam welded area extraction, and the method comprises the steps: obtaining an RGB image and a depth image of a to-be-welded part; acquiring a rectangular detection frame and a preliminary mask for marking a welded area of the weld joint; constructing an energy model; performing global pixel-level optimization on the preliminary mask by adopting an energy model to determine a mask boundary, and obtaining an optimized mask; calculating to obtain a gradient field, a normal direction and a local curvature of the depth image in a boundary neighborhood, and interpolating the depth change curve along the normal direction to obtain an interpolation curve; and performing depth interpolation processing on the optimized mask by utilizing the interpolation curve to obtain three-dimensional boundary information of the welding seam. According to the method provided by the invention, three aspects of feature expression, geometric alignment and engineering availability are considered at the same time, and a complete boundary inference process from network coarse segmentation to deep geometric fine positioning is realized.

The utility model relates to a container cylinder longitudinal seam welding main machine which comprises a vertical frame, a lifting lead screw assembly, a laser welding head, a fine adjustment platform and a longitudinal seam main machine frame, the vertical frame and the lifting lead screw assembly are arranged side by side, the output end of the lifting lead screw assembly is connected with the fine adjustment platform to drive the fine adjustment platform to move up and down, and the laser welding head is installed on the fine adjustment platform. A center seam is formed in the middle of the vertical frame in the vertical direction, a welding gun of the laser welding head penetrates through the center seam, the longitudinal seam main frame comprises a longitudinal frame body and a transverse moving platform, the longitudinal frame body is installed at the output end of the transverse moving platform, the transverse moving platform drives the longitudinal frame body to be close to or away from the vertical frame, and the longitudinal frame body is provided with an open groove corresponding to the center seam. The lifting lead screw assembly is used for driving the laser welding head to ascend and descend, a cylindrical workpiece is vertically welded, the fine adjustment platform can finely adjust the direction of the laser welding head and align to a workpiece welding seam, the longitudinal seam main machine frame is matched with the vertical frame to clamp the workpiece, the workpiece is kept stable, and the welding precision is improved.

The utility model provides a steel pipe forming production line. The problem that an existing high-frequency straight seam welded steel pipe is low in finished product rate when welded to an ultra-thin-wall steel pipe is solved. The device comprises a forming device, a welding device and a shaping device which are sequentially arranged along the machining procedure, the moving path of the steel comprises an ascending section, a welding section and a descending section, the ascending section is the moving path of the steel at the forming device, the welding section is the moving path of the steel at the welding device, and the descending section is the moving path of the steel at the descending section. The descending section is a moving path of the steel between the welding device and the shaping device, the ascending section gradually inclines upwards in the moving direction of the steel, the descending section gradually inclines downwards in the moving direction of the steel, in the whole machining process, the steel pipe is always in a tensioned state, and the welding quality is good.

The invention relates to a ring main unit welding system which comprises a transverse side plate feeding unit, a longitudinal side plate feeding unit and a side plate abutted seam welding unit, the transverse side plate feeding unit comprises a base, a belt conveying device is arranged on the base, a plurality of clamping devices are fixed to the belt conveying device, and the longitudinal side plate feeding unit comprises two adsorption devices. The adsorption device comprises a supporting table and a table plate installed on the supporting table through a rotating mechanism, an air cylinder is fixed to the table plate, a vacuum suction cup is fixed to a piston rod of the air cylinder through an adapter plate, the side plate abutted seam welding unit comprises a support plate, two liftable frames are installed on the support plate, and each frame comprises two portal frames symmetrically distributed in the transverse direction. The tops of the two portal frames are fixed through a cross beam, an outer welding device and an inner welding device which can ascend and descend are correspondingly installed on two vertical rods of the portal frames, and the outer welding device and the inner welding device are the same in height and ascend and descend synchronously. The device has the advantages of being simple in structure, convenient to control, safe, reliable and high in practicability.

The invention discloses automobile tail pipe welding equipment, and relates to the technical field of pipe welding. The device comprises a machining table and a U-shaped frame installed on the upper surface of the machining table, the U-shaped frame is connected with a welding mechanism through a multi-axis linear die assembly, the machining table is slidably connected with two internal expansion clamping mechanisms and two external clamping mechanisms, the positions of the two internal expansion clamping mechanisms are opposite, the two internal expansion clamping mechanisms are used for clamping a tail pipe, and the two external clamping mechanisms are used for clamping the tail pipe. And by adjusting the position of the internal expansion clamping mechanism, the two tail pipes are in butt joint, and rotary welding of the two tail pipes is achieved. The two inner supporting mechanisms are driven to get close to each other through cooperation of a first bidirectional screw and a first movable frame, positioning of the two sides of the tail pipe is achieved, outer pipes are driven to rotate through a second motor and two gears, and under cooperation of a first toothed belt wheel, a first toothed belt, a first spline shaft and a first spline sleeve, the outer pipes on the two sides can rotate synchronously, so that positioning of the tail pipe is achieved. Therefore, the equipment not only can realize the rotary welding of the automobile tail pipe in the circumferential direction, but also can realize the straight seam welding of the tail pipe.

The invention discloses a multi-angle welding tool for welding a cylindrical shell of a petroleum separator, relates to the technical field of petroleum machining equipment, and provides the following scheme that the multi-angle welding tool comprises a welding gun body, and further comprises supporting mechanisms arranged at the two ends of the whole tool and used for carrying out balanced supporting on the two ends of the welding position in the cylindrical shell of the petroleum separator to be welded; the transverse welding mechanism is arranged between the two supporting mechanisms and used for driving the welding gun body to move transversely. Longitudinal and circumferential welding seam welding can be independently completed, arc welding seam welding can also be cooperatively achieved, the distance between the welding gun body and a welding point can be accurately adjusted, shells with different diameters and lengths can be adapted, the whole set of tool does not need to be replaced, pressure feedback of an extrusion sensing block is matched, the inner wall of the shell can be clamped in a self-adaptive mode, and it is guaranteed that a welding area is horizontal and free of displacement; dislocation weld defects are reduced, movement errors of the welding gun body are controlled, weld forming uniformity is guaranteed, and the problems of undercut and incomplete fusion are avoided.

The invention belongs to the technical field of welding, and particularly relates to a steel drum automatic seam searching welding machine which comprises a base, and a circular seam welding assembly is arranged on the base. The girth welding assembly comprises a second fixing ring fixedly connected to one side of the upper end face of the base, a gear ring is rotationally arranged on the inner ring of the second fixing ring, and a welding gun is slidably connected to one side of the gear ring. A barrel body feeding assembly is further arranged on the base. By means of the barrel body feeding assembly, the barrel cover feeding assembly, the barrel body moving assembly and the barrel cover moving assembly, a plurality of barrel covers and barrel bodies can be precisely spliced in sequence, then welding work is conducted, and therefore the process that workers manually feed the barrel covers and the barrel bodies is omitted, and the labor intensity of the workers is reduced.