803 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 belongs to the technical field of welding equipment, and particularly relates to a thin-wall container vertical girth welding device which comprises a base, a supporting plate is fixedly connected to one side of the upper end face of the base, a welding gun is arranged on one side of the upper end of the supporting plate, and a clamping turnover mechanism used for adjusting the angle of a container is further arranged on the base. The clamping and overturning mechanism comprises a displacement plate slidably connected to one side of the upper end face of the base, sliding seats are slidably connected to the two sides of the upper end face of the displacement plate, first sliding rods are slidably connected to the two sides of the upper ends of the sliding seats, and lifting plates are fixedly connected to the upper ends of the first sliding rods. Under the cooperation of the clamping turnover mechanism and the taper adaptive material control mechanism, a plurality of disorderly stacked containers to be welded are separated in order, the opening directions of the containers are distinguished, the openings of the two containers are precisely attached, then welding work is conducted, and the situation that workers need to manually and precisely place the containers at the welding positions is avoided.

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.

The invention belongs to the technical field of seam welding detection, and particularly discloses and provides a roof waterproof roll seam welding detection method which comprises the following steps: constructing a three-dimensional model of a to-be-constructed welding area, and marking the type of a welding detection point; welding characteristic analysis is conducted on the welding area, and all welding characteristic indexes are obtained; the number of welding detection points is determined, and the welding detection points are marked; confirming a standard passing threshold value of each welding detection point corresponding to each welding detection index; building a welding quality inspection model; sequentially carrying out quality inspection according to a set welding quality inspection plan, and recording quality inspection values; and the welding quality score value is output, and a welding quality inspection report of the waterproof coiled material is constructed and fed back. According to the method, the defect that current welding detection points are arranged comprehensively is effectively overcome, the specific welding characteristics of the waterproof coiled material are fully combined, the adaptability of a seam welding detection scene of the roof waterproof coiled material is improved, and meanwhile the representativeness and rationality of a welding detection result are guaranteed.

The invention relates to a welding system for a tank body, in particular to a P + T automatic welding system and method suitable for a square and round tank body, and aims at solving the problems that an existing circular seam welding method for the square and round tank body is tedious in step, consumes time and manpower, is poor in weld seam appearance forming and is high in repair rate. The system comprises a tank body clamping displacement assembly, a robot assembly and an AGV moving trolley. The tank body clamping displacement assembly comprises a displacement machine moving ground rail, two head and tail frame servo moving mechanisms arranged on the displacement machine moving ground rail, head and tail frame robot displacement machines arranged on the two head and tail frame servo moving mechanisms correspondingly, and a displacement machine control system electrically connected with the two head and tail frame servo moving mechanisms correspondingly. The robot assembly comprises a heavy-load robot moving ground rail and a welding robot. The two welding robots are each provided with a welding gun combination, and each welding gun combination comprises a plasma welding gun and an argon tungsten-arc welding gun.

The invention discloses a large steel pipe automatic assembling and welding operation device which comprises a walking assembly, a welding assembly, an assembling assembly, an overturning assembly connected with the walking assembly and the welding assembly and a telescopic assembly connected with the welding assembly and the assembling assembly. The walking assembly is used for walking in a steel pipe and driving the welding assembly and the splicing assembly to rotate circumferentially, the welding assembly is used for welding a longitudinal seam in a single steel pipe section and a circular seam between two adjacent steel pipe sections, the splicing assembly is used for grabbing tiles and driving the tiles to rotate circumferentially, and the telescopic assembly is used for telescopic movement of a movable end. The overturning assembly is used for driving the welding assembly and the splicing assembly to overturn relative to the walking assembly so as to adjust the angle when the steel pipes are spliced; compared with the prior art, automatic operation and mutual connection of working procedures of tile splicing, longitudinal seam welding, steel pipe splicing, circular seam welding and the like of the large steel pipe in an installation site are achieved at the same time.

The invention provides self-adaptive roller carrier equipment for a segmented different-diameter irregular barrel, and relates to the technical field of auxiliary equipment for circular seam welding of carbon steel and stainless steel barrels in the boiler industry. The self-adaptive roller carrier equipment comprises a machine base, a driving roller set and a driven roller set are symmetrically arranged on the machine base, and driving rollers at the two ends are used for supporting one end of the barrel; driven rollers are arranged at the two ends of the driven roller set and used for supporting the other end of the to-be-welded barrel; the distance between driving rollers at the two ends of the driving roller set can be adjusted so as to be matched with to-be-welded barrels with different barrel diameters, and the distance between driven rollers at the two ends of the driven roller set can be matched with to-be-welded barrels with different barrel diameters. A lifting assembly is arranged between the driven roller set and the machine base and used for adjusting the height of the driven roller set. The lifting assembly is in sliding fit with the machine base and is driven by the axial adjusting assembly, so that the lifting assembly drives the driven roller set to move close to or away from the driving roller set in the axial direction of the barrel to be welded.

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.

The invention relates to a straight seam welding system for pipes, which is provided with a working platform and a rack fixed on the working platform, and is characterized in that the working platform is provided with a feeding station, a calibration station and a welding station, the feeding station is provided with a feeding mechanism capable of feeding, clamping and positioning the pipes, and an outer centering mechanism; the calibration station is provided with an inner centering mechanism, a hanging arm, a hook mechanism and a pipe pushing mechanism, wherein the hanging arm is fixed to the rack and can stretch into a pipe to support the pipe when the pipe is fed, the hook mechanism can be connected with the hanging arm in a matched mode, and the pipe pushing mechanism can push, press and position the pipe on the hanging arm. The piano key pressing plate mechanisms are oppositely arranged on the rack and can abut against the tops of the pipes, and a laser welding mechanism capable of welding weld joints on the pipes is arranged on the welding station; the invention further relates to a welding method, an electronic device and a storage medium. The pipe welding device is ingenious in structure, capable of achieving fast, efficient, stable and accurate welding of pipes, convenient and practical.

The utility model discloses a thin-wall container vertical girth welding device which comprises a base and a welding support, the welding support is fixedly installed on one side of the upper end of the base, a rotating motor is arranged on the other side of the upper end of the base, a rotating installation disc is arranged at the upper end of the rotating motor, and an adjusting welding structure is arranged in the welding support. The utility model relates to the technical field of welding equipment, in particular to an adjustable welding structure, which is characterized in that firstly, two annular containers can be stably mounted through a rotary mounting disc and a hoisting fixing component, a gap of an annular seam position is ensured, and the annular containers are rotated at a constant speed through a motor, so that the annular seam welding operation can be conveniently carried out on the annular containers; and the screw rod is matched with the electric push rod, so that the height and the transverse position of the welding gun can be adjusted, and welding operation of annular containers of different specifications can be met.

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 invention discloses an outer circle grinding machine for girth welding machining and a using method of the outer circle grinding machine, and relates to the technical field of grinding machines. A base is arranged in the protective cover, and a lifting assembly for driving the grinding assembly to move up and down is arranged on the base; the lifting assembly comprises a stand column which is horizontally and vertically arranged and a cross beam which moves up and down along the stand column and is horizontally and transversely arranged; the grinding assembly comprises a transverse moving seat arranged on the cross beam in a sliding mode, through the linkage design of a V-shaped connecting rod and a second air cylinder and in combination with elastic compensation of a supporting spring, dynamic self-adaptive attachment of a grinding wheel to the outer circle of a workpiece is achieved, the grinding wheel can automatically adapt to the 0.1-0.5 mm deformation error of the surface of the workpiece, grinding uniformity is ensured, and the grinding efficiency is improved. Therefore, the precision and the smoothness of the arc surface are ensured, the product quality is improved, the reworking operation is reduced, and the production efficiency of the device is improved.

The invention relates to the related technical field of positioning clamps, discloses a circular pipe girth welding positioning device, and aims to solve the problem that the inner diameter flatness is not easy to detect after a circular pipe is welded. A movable sleeve seat is placed in the circular pipe to be welded, and pressurized air is filled into the circular pipe through an air inlet pipe; meanwhile, the movement length of the movable sleeve seat is limited by utilizing a limiting pull rope, after the movable sleeve seat reaches the circular seam part of the circular pipe, the limiting pull rope is tensioned, the air inlet pipe is continuously filled with pressurized air flow, and the air flow pushes the alignment push block to move along the central axis of the movable sleeve seat; during welding, the moving alignment push block ejects the alignment push seat to the inner sides of the two circular pipes, the inner sides of the two circular pipes are aligned through the alignment push seat, so that the welding quality is guaranteed, and the effect of positioning the interiors of the circular pipes is finally achieved.

The invention belongs to the technical field of metal part machining equipment, and particularly relates to a metal part welding device which comprises a straight seam welding machine body, a linear driving assembly and a connecting plate, and a fixing assembly is arranged at the left end of the straight seam welding machine body; the welding mechanism comprises a mounting seat mounted on the connecting plate, and a welding head is mounted on the mounting seat; the auxiliary mechanism comprises an air injection part rotationally arranged on the outer ring of the welding head, and a driving part and a cooling part are further fixedly installed on the welding head; and the preheating mechanism comprises a gas conveying part arranged on the side face of the straight seam welding machine body, plugging parts are arranged on the top face of the straight seam welding machine body in an array distribution mode, and a control part is arranged on the mounting base. By integrating inert gas protection, efficient cooling and intelligent preheating functions, the welding quality and production safety are remarkably improved, and meanwhile the high-precision and efficient automatic welding process is achieved.

The invention relates to the field of MEMS device packaging, in particular to a high-vacuum MEMS device packaging process, which comprises the following steps: after bonding of an MEMS device is completed, pre-fixing a getter into a tube shell, so that the getter is at least electrically connected with a pair of pins on the tube shell; configuring a power supply plugging assembly and an activation tool in the vacuum chamber; the vacuum degassing tube shell is assembled on the activation tool, the pair of pins, electrically connected with the getter, on the tube shell is electrically connected with the power supply plug-in assembly, the getter is electrified and activated through the power supply plug-in assembly, and compared with a traditional high-temperature heating mode for the whole packaging device, the whole packaging device can be prevented from being heated, and the packaging efficiency is improved. Getter activation and seam welding procedures are completed at a time, and a high vacuum environment and good sealing performance of a device in the packaging process are ensured.

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 relates to the technical field of circular seam welding machines, in particular to a circular seam welding machine translation type protective cover which comprises a machining panel, a left vertical rod and a right vertical rod are fixedly installed on the upper surface of the machining panel, a guide plate is fixedly installed between the two vertical rods, and a welding hole is formed in the center of the guide plate. A front side baffle is fixedly installed on the vertical rod located on the left side, a protection assembly is arranged on the machining panel and comprises a guide rail fixedly installed on the machining panel, a servo motor is fixedly installed at the end of the guide rail, a lead screw is fixedly installed at the tail end of an output shaft of the servo motor, and a sliding block is in threaded connection with the lead screw. A supporting frame is fixedly installed on the sliding block, a transparent cover is fixedly installed at the end of the supporting frame, and a guide groove is formed in the top of the transparent cover. The device is provided with the translation type protective cover, so that splash-proof protection operation can be carried out.

The utility model discloses a frame assembly assembling and welding clamp, and belongs to the technical field of rail transit vehicle part assembling and welding tools. The fixture is provided with a fixture body, a plurality of supports are circumferentially distributed on the outer wall of the fixture body, and positioning blocks and cushion blocks matched with the lower surface of a workpiece are laid on the upper surface of the fixture body at intervals; the stand column is fixedly connected with the support, the top end of the stand column is in spiral transmission connection with a pressing rod pressing a workpiece from the upper portion, the pressing rod makes contact with the workpiece through a pressing block, and the lower surface of the pressing block is matched with the upper surface of the workpiece; the cantilevers are fixedly connected to the inner wall of the clamp body in the circumferential direction, and the cantilevers are connected with ejector rods in a spiral transmission mode and used for tightly ejecting the workpieces to the baffles of the positioning blocks in the horizontal direction; according to the welding fixture, one-time positioning and clamping are achieved, welding of a workpiece in the forward direction and the reverse direction is completed, the high-quality-grade welding seam welding requirement is met, and the welding fixture has the advantages that the post-welding adjusting and repairing time is shortened, the product quality is improved, and the production cost is reduced.

The invention discloses a straight seam welding machine for steel plate machining, and relates to the technical field of steel plate welding, the straight seam welding machine comprises a bottom frame body, a top frame body is arranged on the upper surface of the bottom frame body, an auxiliary mechanism is arranged at the center of the top frame body, and the auxiliary mechanism comprises a bearing assembly and a pressing and fixing assembly; the two fixing pressing plates are arranged at the center of the top frame body, the bearing assembly comprises a plate body part and a vibration part, the plate body part comprises a bottom fixing column, the bottom fixing column is fixedly installed on the upper surface of the bottom frame body, an electric telescopic rod is arranged on the upper surface of the bottom fixing column, and the vibration part comprises a sliding protruding strip. The sliding raised lines are located below the bearing plate body, and bottom protruding blocks matched with the sliding raised lines are arranged on the bottom face of the bearing plate body. In the scheme, by arranging the auxiliary mechanism, it is ensured that the welding process is smoothly conducted and the welding seam strength is optimized, and the overall welding efficiency and quality are improved.

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.