30results about How to "Achieve welding" patented technology

The utility model relates to the field of motor shell processing, in particular to welding equipment for motor shell processing, which is characterized in that a mounting part is rotatably arranged on a base through a motor component, a circular supporting seat is mounted on the mounting part, and a welding component and a positioning component are respectively arranged on two sides of the circular supporting seat on the base; a mounting cavity corresponding to the mounting part is adaptively formed in the bottom of the circular supporting seat, a rotating column is rotationally arranged in the circular supporting seat, clamping columns are movably arranged on the two sides of the rotating column, and clamping cavities corresponding to the clamping columns are adaptively formed in the mounting part. According to the motor shell welding device, welding of the motor shell can be achieved through adaptive arrangement of the round supporting base, the welding assembly and the positioning assembly, and fixed installation of the round supporting base can be achieved through mutual clamping arrangement of the installation piece and the installation cavity and matching of locking between the clamping column and the clamping cavity; the assembling mode of the circular supporting seat is simple and convenient, so that the flexibility of the device is improved.

This invention discloses a positioning fixture and welding method for welding landscape bridges, mainly relating to the technical field of welding devices. It includes a first base plate and a second base plate, each with several L-shaped blocks. A first sliding rod is slidably connected to each L-shaped block, and several arc-shaped plates are provided at the ends of the first sliding rods. A first spring is provided between the arc-shaped plates and the L-shaped blocks. It also includes fixing plates symmetrically arranged at both ends of the first base plate and used in conjunction with the second base plate. A first sliding plate and a second sliding plate are slidably connected to the first and second base plates, respectively. The first and second sliding plates are slidably connected, and a first welding torch is mounted on the first sliding plate. Furthermore, it includes a third sliding plate detachably connected to the first sliding plate, and a second welding torch is mounted on the third sliding plate. The beneficial effects of this invention are: solving the problem of low on-site construction efficiency in existing landscape bridge welding, improving the efficiency and quality of landscape bridge welding, and reducing the labor intensity of workers.

The invention provides a double-shaft-shoulder friction stir welding device with an adjustable shaft shoulder distance and a friction stir girth welding method of the double-shaft-shoulder friction stir welding device. The device comprises an adjustable double-shaft-shoulder stirring tool (1), a rotating main shaft (3), a withdrawing shaft (4), a clamp (5), a positioning platform (6) and a workbench (7), the adjustable double-shaft-shoulder stirring tool (1) is composed of an upper shaft shoulder, a lower shaft shoulder and an adjustable stirring needle, and the rotating main shaft (3) is adopted for controlling rotation of the adjustable double-shaft-shoulder stirring tool (1); and the withdrawing shaft (4) is adopted to adjust the length of the stirring needle. According to the adjustable stirring device, the adjustable stirring needle can freely stretch out and draw back through the withdrawing shaft (4), so that the distance between the shafts can be controlled, and the adjustable stirring device can adapt to welded workpieces (2) with different plate thicknesses. In addition, the press-in amount of the upper shaft shoulder and the lower shaft shoulder can be adjusted in the welding process, and welding forming is better facilitated. The adjustable double-shaft-shoulder stirring tool (1) is not only suitable for common welding seams, but also suitable for closed circumferential welding seams.

The embodiment of the invention provides vertical shaft steel pipe welding equipment. Relates to the technical field of penstock shaft construction. The outer side welding mechanism comprises an outer side rail, an outer side trolley and an outer side welding robot, the outer side trolley is arranged on the outer side rail and slides along the outer side rail, the outer side welding robot is arranged on the outer side trolley, and the outer side welding robot is used for welding an outer side welding seam of the steel pipe; the inner side welding mechanism comprises a telescopic frame, a hoisting frame, an inner side track, an inner side trolley and an inner side welding robot, the inner side track is arranged on the telescopic frame, the hoisting frame is connected with the telescopic frame, the inner side trolley is arranged on the inner side track and slides along the inner side track, and the inner side welding robot is arranged on the inner side trolley and slides along the inner side track. The inner side welding robot is used for welding inner side welding seams of the steel pipes; the hoisting mechanism is connected with the hoisting frame so as to drive the inner side welding mechanism to move in the vertical shaft in the axis direction of the vertical shaft. The equipment is used for achieving the effects of reducing construction risks and relieving the labor intensity of operators.

This invention discloses an integrated welding and drilling system and method for vehicle roofs. The system includes a control unit, a robot unit, a positioning fixture, a spot welding unit, and a drilling unit. The robot unit includes a robot and a tool changer. The positioning fixture includes a welding positioning clamping mechanism and a drilling positioning mechanism. The spot welding unit includes a spot welding gun fixedly connected to the tool changer. The drilling unit includes an electric spindle gun and a manual drilling gun, located on either side of the spot welding gun. During operation, the system adjusts the positioning fixture to clamp and support different types of roofs. The control unit controls the robot to move the spot welding gun to the welding area for welding. After welding, the tool changer rotates to switch tools for drilling. After the operation is completed, the robot resets. This system integrates welding and drilling functions, enabling automated, high-precision welding and drilling of vehicle roofs, achieving flexible production operations.

The application discloses a kind of multi-station clamping tool for laser welding and its temperature control method, it is related to clamping tool technical field, including: rack, moving mechanism and drive mechanism, the controller is installed in rack side, the controller is used to control clamping tool, the rack bottom is connected with moving mechanism, the moving mechanism is provided with two, one of which is connected with drive mechanism, during welding process, when steel pipe rotates, weld and roller contact, if weld is too thick, it will make roller move upwards, trigger infrared sensor to detect displacement threshold change, to remind operator to handle in time, ensure welding quality;By the second plug, external high temperature and high pressure gas is injected into steel pipe, the heat conduction effect of gas is used to heat and keep warm welding area, prevent weld from low ambient temperature and rapidly cool down, avoid producing fissure, to effectively improve welding efficiency and quality.

The utility model is suitable for annular seam welding technical field provides an adjustable annular seam welding device for pipe fitting, including welding assembly, the side of welding assembly is sequentially provided with first clamping assembly, two groups of auxiliary assembly, second clamping assembly, the top of auxiliary assembly is provided with pipe body subassembly, welding assembly includes third electric slide rail, one side of third electric slide rail is provided with mounting bracket, the bottom of mounting bracket is provided with welding head. The pipe body subassembly includes pipe fitting, one end of pipe fitting is provided with connecting piece, the first clamping assembly includes electric chuck, and the cooperation of welding assembly, first clamping assembly, auxiliary assembly, second clamping assembly can realize the welding of pipe body subassembly, reduces the artificial participation degree, improves the welding quality, and simultaneously through the cooperation of first clamping assembly and second clamping assembly can realize the adjustment of pipe body subassembly position, realizes the annular welding of pipe body subassembly.

This invention relates to an ultrasonic welding machine, comprising a frame, a three-unit lifting module, and an electric cylinder. The three-unit lifting module is movably connected to the frame and is used to move the welding head. The electric cylinder is located at the top of the frame, and its output end is fixedly connected to the three-unit lifting module to drive the lifting module to move up and down relative to the frame. By setting the electric cylinder at the top of the frame and fixing its output end to the three-unit lifting module, the electric cylinder drives the lifting module to move up and down relative to the frame, thereby moving the welding head up and down relative to the frame. In this application, the electric cylinder drive allows for precise adjustment of welding pressure and welding head pressing speed, effectively improving welding quality and stability.

The utility model relates to a stirring rod belongs to the motorized tool connecting technical field, including stirring silk and base, the inside of base is equipped with annular groove, the end of stirring silk inserts the annular groove, and is fixed in annular groove through plastic deformation or welding, the utility model discloses a setting annular groove in the base inside makes stirring silk end insertion through the press bending plastic deformation or welding fixed, realizes the welding or mechanical press bending fixed of stirring silk and base, and the anti -tensile force gets the promotion, eliminates the risk of falling under the high -speed centrifugal.

This invention discloses a welding device for the production of new energy forklifts, including a workbench, a side panel assembly, an elastic fixing assembly, a drive and mounting platform, a pushing and fixing assembly, and a welding execution unit. The workbench has a concave position and a through-hole, with the through-hole located at the concave position. The side panel assembly has a movable execution end, forming a mounting position together with the concave position. The elastic fixing assembly is located on the workbench and adjacent to one end of the concave position. The drive and mounting platform includes a drive mechanism and a mounting frame. The mounting frame can move towards or away from the mounting position under the drive mechanism, engaging with the elastic fixing assembly when it reaches a predetermined position, driving it to press against the back plate. The pushing and fixing assembly is located on the mounting frame, pushing the fork blade to a target position that fits against the back plate and fixing it. The workbench has a fork blade position to accommodate and guide the movement of the fork blade, ensuring that its upper surface fits against the lower surface of the back plate when it reaches the target position. The welding execution unit performs welding actions after reaching the welding position.

This invention relates to a method for sealing beryllium foil and stainless steel components, comprising the following steps: S1, pretreatment: the beryllium foil is degreased and acid-washed to remove surface oil and oxides; the stainless steel components and solder are pretreated, including degreasing and cleaning, to remove surface oil; S2, assembly: the beryllium foil, solder, and stainless steel components are assembled sequentially from bottom to top to obtain an assembled component to be brazed; S3, brazing: the assembled component is placed in a vacuum furnace, the furnace temperature is increased and maintained, and the oxides on the beryllium foil are decomposed by high temperature, allowing the solder to effectively wet the beryllium foil and react fully and effectively. After the heat preservation is completed, the temperature is controlled to drop to room temperature, and the brazed sealed component is removed. The beryllium foil and stainless steel component sealing method of this invention can effectively remove oxides from the surface of the beryllium foil, and the solder has good wettability to the stainless steel component, reacting directly to achieve welding between the beryllium foil and the stainless steel component, resulting in a high-quality beryllium foil and stainless steel component sealing component.

The utility model provides a flexible photovoltaic panel installation field welding device relates to wire welding field. This flexible photovoltaic panel installation field welding device, including the sealing cover of wrapping in the outer surface of electric wire, the sealing cover is by the half shell of symmetry, and two half shells form the edge seal through the clamping, and the cable of half shell is provided with the clamping protrusion through the end, wherein the half shell of being located in the upper portion is provided with the through -hole of passing through this half shell, and the through -hole is used for injecting the melted solder into the sealing cover, and the connecting portion of avoiding two half shells separation is arranged between two half shells, this flexible photovoltaic panel installation field welding device, through setting up half shell and injecting solder to the inside, can make the part of wire connection can be fixed by solder, and be wrapped by sealing cover, can realize the welding of wire fast.

This invention relates to the field of high-level storage tank welding technology, specifically to a welding process and tank for the inner cylinder of a high-level liquid storage tank. The process includes an insertion welding device comprising a main sleeve, a fork-shaped component one, a fork-shaped component two, and a welding torch. One end of the main sleeve is rotatably fitted with a ring sleeve. A sleeve is fixed to the outer wall of the main sleeve, and a rotating module is installed between the sleeve and the ring sleeve. The rotating module drives the ring sleeve to rotate. The fork-shaped component one includes a main cross rod one and a main cross rod two, which are rotatably connected to the ring sleeve. The main cross rods one and two are arranged in a cross configuration. A tensioning module is installed on the ring sleeve. In this invention, the insertion welding device allows welding to be performed inside the cylinder through a window on the side wall of the tank, thereby welding the inner side of the last circumferential seam. This ensures that the inner and outer sides of all circumferential seams on the main body of the tank are welded, thus improving the welding effect and increasing the pressure-bearing length of the tank.

The invention belongs to the field of welding devices, and particularly relates to an intelligent welding device for an electric iron tower structural component, which comprises a welding manipulator and a welding tool, the welding tool comprises a base and a plurality of groups of supporting devices arranged on the base, each supporting device comprises a mounting frame, and a rotating disc is arranged on the side wall of each mounting frame; the rotating disc can rotate relative to the mounting frame, a through avoiding hole is formed in the mounting frame, a clamping groove is formed in the rotating disc, and the pole excess material penetrates through the clamping groove and the avoiding hole of the multiple supporting devices and is supported below the welding manipulator. The invention further comprises a control method of the welding device. During welding, through rotation of the rotating disc, welding seams on the front face and the back face of the tower pole excess material are welded, the thick tower pole excess material can be fully welded, manual participation is not needed in the rotating process in the welding process, the working efficiency is improved, and the labor intensity of workers is reduced.

The utility model belongs to the field of welding equipment and provides a gantry type friction stir welding equipment with a back-pulling function, which comprises a gantry mechanical body, a machine head assembly, a numerical control system, an electric control cabinet, a lubricating system, a protective piano cover and an appearance sheet metal, etc. The machine head assembly has a unique stirring needle back-pulling design and a process inclination angle adjustment design. The stirring needle back-pulling design can ensure that the stirring needle maintains a certain rotating speed and gradually retracts to fill the tail hole when the welding is completed, and finally realizes welding without a keyhole. The process inclination angle adjustment design can ensure that the machine head assembly is manually adjusted within a certain range (±5°) of angle, and meets the requirements of the friction stir welding process.

This application relates to the field of solar cell technology, providing a welding press and apparatus, a cell module and welding method, and a photovoltaic system. The welding press is used to press a solder strip placed on a solar cell. The solar cell includes an insulating layer and multiple solder joints. The insulating layer has multiple openings, and the solder joints are located in the openings. The top of the solder joint is lower than the top of the insulating layer, forming a groove with the insulating layer. The welding press includes a pressure plate and a filler. When the welding press presses the solder strip and the solar cell, the filler presses the solder strip above the solder joint into the groove, causing the solder strip to contact the solder joint. Thus, because the filler presses the solder strip above the solder joint into the groove, making the solder strip contact the solder joint, it avoids the gap between the solder strip and the solder joint caused by the top of the solder joint being lower than the top of the insulating layer, thereby achieving contact between the solder strip and the solder joint and improving welding defects.

The present application relates to gantry vertical milling and welding composite machine tool technical field, concretely is a kind of dynamic beam dynamic column type gantry vertical milling and welding composite machine tool, solve the problem that the existing composite machine tool is welded to workpiece, for the workpiece of different shapes is welded, need to change welding position constantly for welding torch, waste more time in this process, thereby reduce the welding efficiency problem.It includes machine tool module, machine tool module includes machining platform, machining platform moving drive structure and machine base, machining platform moving drive structure is located inside the machine base, for driving machining platform;Gantry, gantry is located above the machine tool module and the bottom end with the side surface of machine tool module is fixed;Milling module, milling module includes lifting main shaft, horizontal translation structure, vertical translation mechanism and main shaft drive motor.The present application carries out synchronous welding operation to the workpiece of different shapes multiple sides, need not change the position of welding torch, shorten the welding time, thereby improve the welding efficiency.

This utility model discloses a generator stator welding device, including a base, a rotating assembly at the bottom of the base, a first gear at the top of the base via the rotating assembly, a second gear meshing with the surface of the first gear, a worktable fixedly installed inside the second gear, the worktable rotatably connected to the base, a driving assembly at the bottom of the worktable, a first screw at the bottom of the worktable via the driving assembly, a moving rod threadedly connected to the surface of the first screw, the moving rod slidably connected to the worktable, a clamping block fixedly installed at the top of the moving rod, a moving assembly at the top of the base, and an electric push rod at the top of the base via the moving assembly. A welding gun is fixedly installed at the output end of the electric push rod. This allows the welding gun to weld the stator comprehensively without removing the stator from its fixation, completing all welding on the top of the stator, simplifying operation.

A brazing method for synchronously realizing a porous structure of a welding seam when welding a porous material, and belongs to the field of welding of porous materials. The present application solves the problem that it is difficult to ensure that the welding seam is in a porous structure when welding a porous material. Method: the filler metal, pore forming agent and resin powder are determined by the base material to prepare the filler metal slurry; the base material and the filler metal slurry are assembled, then heated and sintered, and ultrasonic vibration is applied at the sintering temperature. The welding seam in the joint obtained by the present application is in a porous structure, and the pore diameter or porosity in the welding seam can be adjusted according to the relevant parameters of the base material by adjusting the ratio of the filler metal, which can ensure the continuity of the porosity of the base material; the heating of the filler metal realizes the welding and at the same time completes the preparation of the porous welding seam, which is efficient; the welding of porous metal and porous ceramic can be realized. The method of the present application is used for welding of porous materials.

This utility model discloses a welding device for building steel, including a mounting frame, a first processing platform, and a second processing platform. Both the first and second processing platforms are located on top of the mounting frame. The second processing platform is rotatably mounted on the side of the first processing platform. A robotic arm is located on one side of the first processing platform, and a welding gun is mounted on the robotic arm. A first clamping assembly is located on the first processing platform. A second clamping assembly is located on the second processing platform. A transmission assembly is located on the second clamping assembly. A pushing assembly is located on the mounting frame and is connected to the second processing platform to drive the second processing platform to rotate. Beneficial effects: The first and second clamping assemblies clamp two steel plates respectively; the pushing assembly drives the second processing platform to rotate relative to the first processing platform; the robotic arm drives the welding gun to weld the connection point of the two steel plates, thereby achieving welding at different connection angles of the steel plates without manual support and improving welding accuracy.

This application discloses an EPE film welding device, comprising: a rotary placement mechanism including a rotary drive assembly and a placement platform, wherein the rotary drive assembly is connected to the center of the placement platform and drives the placement platform to rotate around its centerline, and welding positions are respectively located on both sides of the centerline of the placement platform; and a welding mechanism including a welding component and a welding drive assembly, wherein the welding drive assembly is connected to the welding component and drives the welding component to move towards or away from the placement platform, the welding component including a welding plate, a heating rod mounted on the welding plate, and the welding plate being located above the placement platform. The EPE film welding device of this application can realize the welding of two EPE film pieces, speeding up the cycle of placing double-layer EPE film pieces and improving work efficiency.

The utility model discloses an impeller welding device relates to impeller processing technical field, and this impeller welding device includes work table, and the both sides of work table top are installed respectively with impeller positioning subassembly and multiple groups of blade positioning subassembly, and impeller positioning subassembly includes the rotating disc, and the inside annular of rotating disc sets up with multiple groups of first through groove, and the inside installation of first through groove has first sliding rod, and the outer wall sliding connection of first sliding rod has sliding block, and the top installation of sliding block has arc plate, and the other side installation of work table top has stand, and this scheme has solved the current impeller welding device in the process of using and only sets up a group of blade positioning subassembly, and after a group of blade welding is completed, when welding to another kind of blade again, needs to remove the moving block and then installs the positioning of another group of blade, cannot carry out the positioning of blade and welding synchronously, has reduced the impeller welding efficiency, and cannot adjust the angle of blade, has reduced the practicability of the device problem.

The invention provides a multifunctional laser welding device, and relates to the technical field of laser welding. Comprising a welding installation mechanism, the welding installation mechanism comprises a supporting table, the top of the supporting table is fixedly connected with a machining table, a welding control panel is installed on the surface of the machining table, and two sets of supporting limiting assemblies are fixedly installed on the top of the machining table; a clamping and overturning assembly is installed in the machining table. According to the device, pipes can be correspondingly mounted and butted, the pipes can be fixedly mounted, the placed pipes can be butted and limited conveniently, the mounting stability of the pipes is improved, the welding quality of the pipes is improved, meanwhile, the pipes can be efficiently welded, the surfaces of the pipes can be comprehensively welded, and the welding quality of the pipes is improved. And the pipe can be overturned and welded conveniently, the pipe welding efficiency is improved, and the working time is saved.

The application discloses a magnetic separator medium box welding device and process method, and belongs to the technical field of magnetic separator medium box welding. The device comprises a control unit of whole machine control, a rack, a laser welding module and a top surface fluctuation acquisition unit. The control unit is internally provided with a data entry module, a motion path control module, a path compensation calculation module, a path calculation module and a laser welding control module. A Y-direction transposition electric sliding table is fixedly arranged in the middle of the top surface of the rack. A medium box bearing platform is fixedly arranged on the sliding block of the Y-direction transposition electric sliding table. The magnetic separator medium box welding device and process method adopt a double symmetrical welding sequence, so that the deformation stress in the Z-axis and Y-axis directions is offset, the welding deformation is greatly reduced from the source, the overall sinking amount of the medium box is measured in real time through a displacement monitoring unit, high-precision full-closed-loop compensation is realized, and the automatic welding of the medium box to be welded is high in efficiency and high in quality.

The high-speed welding equipment comprises a mounting plate, two sets of connecting columns are fixedly installed on the upper surface of the mounting plate, a motor is fixedly installed on the upper surface of one set of connecting columns, and transmission discs are fixedly and rotationally installed on an output shaft of the motor and the upper surface of the other set of connecting columns respectively. The outer surfaces of the two sets of transmission discs are sleeved with transmission belts, an electromagnetic welding mechanism is fixedly installed on the upper surface of the other end of the installation plate, and the space between the electromagnetic welding mechanism and the transmission belts can be filled with a shell of a micro motor. Through the design of the electromagnetic welding mechanism, a worker only needs to fill a motor shell between the transmission belt and the connecting frame to achieve the welding process, the automation degree of the whole welding process is high, and compared with a traditional welding mode which needs to manually and frequently adjust the welding position, control welding parameters and the like, the welding efficiency is improved. According to the mode, only one person is needed for filling the motor shell, so that the labor cost is greatly saved.

The utility model discloses a bladder volume measuring instrument probe interface welding device which comprises a machine frame, a welding assembly used for welding a probe interface of a bladder volume measuring instrument and a driving assembly used for enabling the bladder volume measuring instrument to rotate are arranged on the machine frame. The welding assembly is arranged on one side of the driving assembly and comprises a welding gun and a base, and the welding gun is rotatably connected around the base; the driving assembly is connected with a clamping assembly, a bladder volume measuring instrument is fixed on the clamping assembly, the center line of a probe interface of the bladder volume measuring instrument coincides with the center line of the driving assembly, and the welding assembly is used for welding the rotating bladder volume measuring instrument. The bladder volume measuring instrument is clamped, fixed and welded, the welding gun is used for welding a probe interface on the bladder volume measuring instrument while the bladder volume measuring instrument rotates, and the welding efficiency and the welding quality are improved.

The utility model relates to the technical field of hot-pressing equipment, in particular to high-frequency equipment for hot-pressing LOGO. The device comprises a high-frequency welding machine, an upper die plate, a pressing block, a lower die block, a lower die adjusting plate and a lower die fixing plate, the top of the upper die plate is connected to the high-frequency welding machine, the upper die plate is provided with a LOGO pattern, the pressing block is provided with a pattern avoiding hole, the bottom of the upper die plate is connected with the pressing block, the lower die fixing plate is connected to a base of the high-frequency welding machine, the lower die fixing plate is provided with an adjusting groove, and the adjusting groove is communicated with the pattern avoiding hole. The lower mold adjusting plate is connected into the adjusting groove, the lower mold block is connected to the top of the lower mold adjusting plate, an inner cavity for positioning a product is formed between the pressing block and the lower mold block, the high-frequency welding machine is communicated with the upper mold plate and the lower mold block, and a LOGO pattern of the upper mold plate makes contact with the product during hot pressing. The high-frequency welding machine generates a high-frequency electromagnetic field on a processed object through the upper mold plate and the lower mold block, and the purpose of welding or embossing is achieved under pressure, so that the font shape of a LOGO obtained through hot pressing is consistent.

This invention discloses a welding mechanism for precision seamless welded steel pipe processing, belonging to the field of seamless steel pipe welding technology. It includes a welding table with a servo motor embedded in its surface. The output shaft of the servo motor is connected to a clamping mechanism via two meshing first gears, and the clamping mechanism is used to clamp the steel pipe to be welded. It also includes a protective box fixed to the upper surface of the welding table. A welding head is installed inside the protective box, and a fumigation mechanism is provided on the outside of the protective box, intermittently removing fumes generated during welding. This precision seamless welded steel pipe processing welding mechanism can achieve precise docking of two pipes without deviation after docking, facilitating subsequent welding. Furthermore, it can achieve full welding by rotating the pipe, eliminating the need for repeated adjustments to the clamping position. While welding with a protective gas, it can also expel the welding fumes.

This invention relates to a welding method for resin-based composite materials that achieves reinforcing fiber bonding. The invention addresses the technical problem of low joint strength in resin-based composite materials obtained through conventional ultrasonic welding. The method comprises: first, selecting the joint type and processing of the composite material; second, heating the area to be welded, removing the resin matrix to expose the reinforcing fibers; third, using horizontal vibration ultrasonic welding to weld the reinforcing fibers, creating connections between them; and fourth, re-casting resin into the welded area after the fibers are bonded. This invention not only achieves bonding of the resin matrix but also the bonding of its internal carbon fibers, resulting in a high-strength joint. This method can be used to weld various composite materials, such as carbon fiber / glass fiber resin-based composites. This invention is used for welding resin-based composite materials with reinforcing fiber bonding.

This utility model discloses an automatic welding device for double-ended steel pipes, relating to the field of welding equipment technology. It includes a processing table with a pair of welding components symmetrically and adjustablely arranged on the table. A limiting component is located in the center of the processing table, comprising a driving wheel and a driven wheel. The driven wheel and driving wheel mesh. A second motor is fixedly mounted on the side of the limiting table, and the output shaft of the second motor is fixedly connected to the driving wheel. A lower arc-shaped plate and an upper arc-shaped plate are arranged inside the driven wheel. Elastic blocks are fixedly arranged between the upper arc-shaped plate, the lower arc-shaped plate, and the driven wheel. A pair of positioning plates are symmetrically fixed inside the driven wheel. Limiting bolts are threaded between the upper arc-shaped plate, the positioning plate, and the lower arc-shaped plate. This invention solves the problem in the prior art where steel pipes are supported only by arc-shaped brackets and rollers, and during welding, the steel pipes may axially shift due to vibration or rotational inertia, leading to weld misalignment and affecting welding quality.