459 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 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 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 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 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 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.

The application relates to a large-diameter suction cylinder construction process of an offshore wind power jacket, and the specific steps comprise the following steps: S1, coiling a circular arc plate body; S2, manufacturing a single cylinder section; S3, constructing a lower section structure of the suction cylinder; S4, manufacturing a jacket leg assembly; S5, constructing an upper section structure of the suction cylinder; S6, constructing folding; S7, inner seam welding; and S8, paint spraying. The application has the following advantages: the cylinder section is manufactured by a piece-by-piece and section-by-section method, and a longitudinal assembly alignment splicing mode is adopted, so that the roundness during cylinder section welding is guaranteed, and the splicing perpendicularity and the structural strength of the suction cylinder are guaranteed.

: The invention presents a motorized auto welding jig fixturing device for laser welding two free running circular tubes of the similar diameter concentrically with robotic arm auto loaders, addressing the specific requirements of the industrial 4.0 advanced manufacturing coving many industrial sectors. This automated laser welding system aims to streamline the welding process, eliminating the need for human intervention of pre-alignment and pre-tact welding for the two tubes while prioritizing safety and productivity. Central to the invention is a sophisticated rotating mechanism powered by an AC servo motor, enabling seamless loading unloading of the two workpieces concurrently onto the fixture for both tact welding process and seam welding process within the one unique jig fixturing apparatus and a robotic arm loading system for higher productivity. The fixture system ensures precise alignment and rotation of the workpieces upto 380 degrees for achieving the desired welding quality and penetration along the whole circumference of the tubes for good hermetic sealing. Compared to traditional methods, this innovative solution offers improved efficiency, consistency, and safety measures. It revolutionizes workpiece loading and integration, enhancing production efficiency and output quality while mitigating potential safety hazards, through meticulous engineering and integration of advanced technologies.

The utility model belongs to the technical field of longitudinal welded pipe heat treatment, and particularly relates to a longitudinal welded pipe weld heat treatment device which comprises a base, the lower end of the base is fixedly connected with a supporting frame, the upper end of the base is fixedly connected with a tempering box, the left end of the tempering box is provided with a box cover, and the box cover makes contact with the base. The inner side wall of the tempering box is in contact with a heater, the end face of the heater is fixedly connected with an insertion block, the insertion block is slidably connected with the tempering box, and the inner wall of the tempering box is slidably connected with an insertion plate. Through the arrangement of the rotating cylinder, the longitudinal welded pipe can be placed and used, effective heat transfer can be ensured under the action of the circulating hole, the rotating cylinder can drive the longitudinal welded pipe to rotate under the driving of the servo motor so as to ensure the heating uniformity, and the longitudinal welded pipe can be uniformly heated under the structures such as the limiting seat and the second heat-resisting spring. And the rotating cylinder can be rotationally guided, and the shaking problem of the rotating cylinder is avoided.

The invention discloses longitudinal seam welding equipment, and relates to the technical field of pipeline welding. The equipment comprises a base, a datum plate, a welding device, a rotating device, a jacking device and an adjusting device, the rotating device is used for bearing a to-be-welded workpiece. A liftable positioning column is arranged on a lifting plate of the jacking device, a cavity is formed in the lifting plate and filled with a cooling medium, a mounting groove and a welding groove are formed in the side wall of the lifting plate, and a light curtain area sensor is arranged in the mounting groove. And the adjusting device can drive the positioning column to translate and rotate. During working, the positioning column extends into a workpiece, automatic optical centering of a welding seam is achieved through cooperation of the sensor and the rotating device, and then the positioning column abuts against the workpiece and conducts welding. The internal cooling medium can effectively control the temperature of a welding area, the problem of welding quality fluctuation caused by heat accumulation of the positioning column is solved, and meanwhile high-precision and high-efficiency automatic centering and welding of heavy workpieces are achieved.

The invention relates to a welding method and device of a welding seam, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring point cloud data of a target welding seam; inputting the point cloud data into a welding seam positioning model to obtain a reference welding pose of a target welding seam; standard welding poses of the target weld joint under different adjustment schemes are obtained; the reference welding pose and the standard welding pose are converted into a homogeneous conversion matrix under a robot-based coordinate system, and a reference welding pose matrix and a standard welding pose matrix are obtained respectively; calculating the reference welding pose matrix and the standard welding pose matrix to obtain a conversion relation matrix; and on the basis of the conversion relation matrix and the reference welding pose matrix, the gun lowering pose of the welding gun is determined, and the gun lowering pose is used for guiding the robot to execute the welding task.

The invention discloses plasma arc welding equipment for frame straight seam welding, and relates to the technical field of plasma arc straight seam welding equipment.The plasma arc welding equipment comprises a rack installed on the upper surface of a machine base through bolts, and the side face, located below the rack, of the machine base is connected with a working rack for bearing a frame through bolts. According to the plasma arc welding equipment for frame straight seam welding, the end portions of the two frame workpieces are precisely bulldozed and aligned through the aligning mechanism, the initial assembly error is eliminated, rigid clamping is formed on the two sides of the frame workpieces through the clamping mechanism, the welding faces of the frame workpieces are forced to be tightly attached, and the welding efficiency is improved. The aligning mechanism, the clamping mechanism and the original pressing assembly form three-dimensional multi-point constraint on the frame workpiece, workpiece upwarp, transverse shrinkage and distortion caused by welding thermal stress are effectively resisted, finally, the clamping mechanism is in linkage with the top disc to operate, adsorption of the frame workpiece and the working table top is broken, quick and lossless workpiece taking is facilitated, and the welding quality is improved. And deformation of the frame workpiece is avoided.

The present application relates to a kind of straight seam welded pipe inner welding core cold-drawing machine, belong to steel pipe welding technical field.Guiding rail is installed on the first half of frame, rail car is installed on guiding rail, chain transmission device is installed on frame, rail car is drivingly connected with chain transmission device, drawing knife rod is installed on rail car, axial limiting plate is vertically installed on the frame of the end of guiding rail, axial limiting plate is provided with the through hole for drawing knife rod to pass, lifting support device and pressing device are installed in the middle and tail of frame;Through lifting support device, pressing device and axial limiting plate, the steel pipe to be processed is fixed, by pushing rail car to drive drawing knife rod to extend into the steel pipe to be processed, through chain transmission device to pull rail car and drawing knife rod, the welding scar is drawn and removed, welding scar is removed by drawing, and the removal effect is good, processing speed is fast, which is beneficial to improve work efficiency, reduce labor intensity, save time and effort.

The application discloses a kind of oil cylinder ring seam welding equipment of liquid gas separation, including base, and fixedly installed on the running bin of base upper surface, the inside fixed mounting of the running bin is clamped mechanism and guide cylinder, two symmetric distribution's receiving mechanism is fixedly installed on the upper side of clamped mechanism, two symmetric distribution's polishing mechanism is arranged between two receiving mechanisms, two opposite sides of polishing mechanism are provided with buffer mechanism, and polishing mechanism and buffer mechanism are located between two receiving mechanisms, the welding mechanism is fixedly installed in the inner wall of the running bin, and the welding mechanism is located in the upper side of polishing mechanism, and collection bin is opened in the inside of base;The application, by setting buffer mechanism, can produce the effect of gas damping, to control the rotational speed of polishing roll, avoid vibration of high-speed rotating polishing roll, so as to achieve the effect of good welding effect, small vibration.

The utility model belongs to the technical field of liquid cooling plate welding, and particularly relates to friction stir spot welding-seam welding composite welding liquid cooling plate equipment. The workbench is used for containing a liquid cooling plate positioning table, the portal frame stretches across the workbench and can do reciprocating motion along the workbench, and first horizontal moving assemblies are horizontally arranged on the two sides of a cross beam of the portal frame respectively so that vertical moving assemblies can be loaded and act on the first horizontal moving assemblies; a friction stir welding spot welding device and a friction stir welding seam welding device are installed at the action ends of the two vertical moving assemblies arranged on the two sides of the cross beam correspondingly, and the welding working ends of the two devices both point to the table top of the workbench. The friction stir welding spot welding device and the friction stir welding seam welding device are arranged on the two sides of the portal frame respectively, so that the two welding devices can cooperatively weld and fix the liquid cooling plate, the size of the whole equipment is reduced, efficient and stable welding of the liquid cooling plate is achieved, and the production efficiency is improved. And the condition of thermal deformation of the liquid cooling plate in the welding process is avoided.

The invention discloses a profile steel seam welding device and a using method, and relates to the field of profile steel machining equipment.The profile steel seam welding device comprises a pair of side frames, the side frames are symmetrically arranged, two side plates which are distributed up and down are arranged in each side frame, and flange pressing rollers are rotationally connected between the two pairs of side plates which are horizontally aligned in the pair of side frames; a pair of limiting pieces is arranged on each flange pressing roller, a first horizontal adjusting piece used for driving the pair of limiting pieces to be close to or separated from each other is arranged between each pair of side plates, and web pressing wheels distributed towards the middles of the flange pressing rollers and second horizontal adjusting pieces capable of driving the web pressing wheels to move horizontally are arranged on the limiting pieces. The device has a good clamping and positioning function on the H-shaped steel, the clamping structure is flexible, the clamping distance can be adjusted according to the specification of the H-shaped steel, the device is suitable for the H-shaped steel of different sizes and specifications, meanwhile, a two-time welding mode is adopted, the H-shaped steel seam welding quality is guaranteed, the overall rigidity of the H-shaped steel is guaranteed, and the service life is prolonged.

The application relates to a seam welding packaging device and relates to the technical field of electronic component packaging. The seam welding packaging device comprises a machine shell, a positioning mechanism, a feeding mechanism, a material moving mechanism and a packaging mechanism. The machine shell is provided with a sealed cavity, and the sealed cavity is provided with a mounting seat. The positioning mechanism comprises a positioning table arranged on the mounting seat. The feeding mechanism comprises two feeding assemblies arranged in the sealed cavity. The two feeding assemblies are arranged in the left-right direction at intervals. One of the two feeding assemblies is used for supplying a base body, and the other feeding assembly is used for supplying a cover body. The material moving mechanism comprises two material moving assemblies arranged on the mounting seat. One of the two material moving assemblies is used for moving the base body to the positioning table, and the other material moving assembly is used for moving the cover body to the base body on the positioning table. The packaging mechanism comprises a seam welding machine arranged in the sealed cavity. The seam welding machine is movably arranged, so that the roller electrode of the seam welding machine can roll and press weld the base body and the cover body.

The invention relates to the technical field of welding devices, and discloses a fire extinguisher girth welding device which comprises an operation table, two translation guide mechanisms are arranged on the front side of the upper surface of the operation table, a positioning mechanism is slidably arranged on the upper portions of the two translation guide mechanisms, and a protection assembly is arranged on the outer surface of the positioning mechanism. The protection assembly comprises a support fixedly connected to the outer surface of the positioning mechanism, a vertical rod movably penetrates through the middle of the support, a top seat is fixedly connected to the top end of the vertical rod, a sheet plate is movably connected to the side edge of the top seat, and a straight protection plate is fixedly connected to the side, away from the top seat, of the sheet plate. The protection assemblies are installed on the positioning mechanisms on the two sides of the support and can rotate along with movement of the positioning assemblies, the shielding precision of the straight protection plate on circular seam strong light is high during welding, the protection coverage range is remarkably expanded, the influence of strong light radiation on surrounding operators is reduced, and the welding quality is improved. And the operation link of manually and frequently switching protection equipment is omitted, and the operation convenience is improved.

This utility model relates to the field of welding equipment technology, and proposes a high-efficiency automatic welding device for ultra-large diameter spiral welded pipes. It includes a frame, with several support seats fixedly connected to the bottom of the frame. Support wheels are rotatably connected to both sides of the top of each support seat, and the support wheels on the same side are coaxially fixedly connected. A welding mechanism is installed on the frame, including a lead screw with a movable seat threaded onto it. A servo motor is fixedly mounted at one end of the frame, and the output shaft of the servo motor is fixedly connected to the lead screw. A welding assembly is installed at one end of the movable seat, and a dust collection assembly is installed at the bottom of the movable seat. A transmission mechanism is installed at one end of the frame. This utility model, through a servo motor-driven lead screw mechanism and a synchronous transmission system, achieves automatic movement of the welding torch along the spiral weld seam and synchronous control of the pipe rotation. This eliminates the need for traditional manual operation, improves welding speed and positioning accuracy, and effectively enhances welding efficiency.

The present application relates to the technical field of seam welder, and discloses a multi-layer metal bellows matched end seam welding tool.The present application comprises: a machine body internally provided with a driving device and a transformer, an upper welding wheel mechanism and a lower welding wheel mechanism are arranged on the machine body support table, an upper extension guide column capable of axial extension is arranged on the upper welding wheel mechanism, and an upper additional electrode wheel is arranged at one end of the upper extension guide column; a lower extension guide column capable of axial extension is arranged on the lower welding wheel mechanism, and a lower additional electrode wheel is arranged at one end of the lower extension guide column; the tool further comprises a synchronous driving mechanism for driving the upper extension guide column and the lower extension guide column to synchronously extend and retract.The synchronous design of the upper additional electrode wheel and the lower additional electrode wheel is matched with the synchronous driving mechanism to realize the synchronous extension and positioning of the two end electrode wheels, and the seam welding work of the two ends of the metal bellows can be completed at one time, thereby improving the processing efficiency.

The utility model relates to the technical field of welded pipe machining, and discloses a high-frequency straight welded pipe notch polishing device which comprises a bottom plate, an air cylinder is fixedly installed on the upper surface of the bottom plate, the output end of the air cylinder is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a polishing disc, and the upper surface of the bottom plate is fixedly connected with a fixing rod. A connecting block is slidably connected to the outer portion of the fixing rod and fixedly connected to the lower surface of the driving motor, and a clamping assembly is arranged on one side of the upper surface of the bottom plate. The clamping assembly comprises a bottom frame, and the bottom frame is arranged on one side of the upper surface of the bottom plate. By means of the rotating ring driven by the clamping assembly and the outer gear ring, stable rotation of the welded pipe is achieved, the polishing disc can conveniently and evenly polish the outer ring of the welded pipe notch, the polishing quality is improved, the polishing disc can be accurately aligned with the bottom of the outer ring of the welded pipe notch, and effective polishing of the outer rings of the welded pipe notches of different sizes is achieved.

The invention discloses a complete method for manufacturing a weathering resistant steel variable cross-section box type prestressed steel cover beam. The technical problems that a traditional variable cross-section box type prestressed steel cover beam is complex in manufacturing process and low in manufacturing efficiency are solved. The method comprises the following steps: assembling a jig frame; a jig frame is arranged on the top plate unit; the top plate, the web plate and the cantilever inclined bottom plate are assembled in three directions; mounting a bottom plate unit; main welding seam welding; secondary assembling and welding; and appearance treatment. The method is scientific and reasonable in design, the variable cross-section box type prestressed steel cover beam in road and bridge building construction is simple in manufacturing process, high in manufacturing efficiency and good in product effect, and the overall construction progress of road and bridge buildings can be effectively shortened.

The utility model provides a circular tube straight seam welding device, which relates to the technical field of welding equipment and is provided with a supporting part, an aligning component, a driving unit and a pressing unit. The circular tube straight seam welding equipment is used for welding a connecting seam in a circular tube formed by bending a steel plate; the supporting part is used for supporting a to-be-welded circular pipe; the driving unit is used for driving the welding gun to advance along a preset track; and the pressing unit is used for pressing the circular tube parts on the two sides of the to-be-welded gap. According to the utility model, the mounting position of the circular tube can be corrected, so that a gap to be welded is overlapped with the advancing track of the welding gun, and the working efficiency and the welding seam quality are further improved.

The invention relates to the technical field of automobile part production, in particular to automobile silencer barrel production equipment which comprises a feeding assembly, a curling assembly and a longitudinal seam welding assembly, the curling assembly comprises a profiling rod, a lifting disc, a lifting frame, a first air cylinder, two pressing hydraulic cylinders and two pressing rollers, and the profiling rod is fixed to a supporting frame; the lifting disc is arranged below the profiling rod in a sliding mode, the lifting frame is arranged on one side of the lifting disc, the two pressing hydraulic cylinders are arranged on the two sides of the lifting frame, and the two pressing rollers are connected with the output ends of the two pressing hydraulic cylinders correspondingly; the longitudinal seam welding assembly comprises a welding moving part, a pressing device, a pressing plate and a welding head, the welding moving part is arranged above the profiling rod in a sliding mode, the pressing device is connected with the welding moving part, the pressing plate is connected with the output end of the pressing device, the welding head is arranged on one side of the welding moving part, and pressure is continuously applied through a pressing roller so that the stainless steel plate can be moved and shaped; therefore, the production quality is improved.