35results about How to "Weld smooth" patented technology

The invention belongs to the technical field of bridge expansion joint welding, and particularly relates to a bridge expansion joint welding fixing device with a limiting mechanism, which comprises a welding seat, a processing seat fixed on the surface of the welding seat and bridge expansion joint profile steel attached to two sides of the surface of the processing seat, and a limiting assembly is mounted on the surface of the welding seat. The device is provided with the limiting assembly, the position of the bridge expansion joint profile steel can be effectively limited, it is guaranteed that the bridge expansion joint profile steel is kept in a stable state in the welding process, the welding quality can be better improved, and welding defects caused by position deviation of the bridge expansion joint profile steel are reduced; according to the bridge expansion joint profile steel limiting device, collision or damage caused by displacement of the bridge expansion joint profile steel is reduced, meanwhile, the bridge expansion joint profile steel is pressed and limited through the pressing plates at the four corners, limiting force can be applied to the bridge expansion joint profile steel in multiple directions, the overall limiting effect is enhanced, the profile steel can better resist external force interference in the welding process during welding, and the welding quality of the profile steel is improved. And smooth welding is ensured.

The invention provides a cylindrical lithium battery. A first hole and second holes are formed in a plate body part of a positive collector plate in the cylindrical lithium battery, the diameter of each second hole is 25%-35% of the diameter of the plate body part, the sum of the areas of all the second holes is 0.9-1.5 times of the area of the first hole, and a fusing groove is formed in a tail body part of the positive collector plate. The distance between the center position of the fusing groove and the end, away from the disc body part, of the tail body part is 68%-78% of the length of the tail body part, and the minimum sectional area S2 of the tail body part in the fusing groove is 45%-65% of the overall sectional area S1 of the tail body part. According to the cylindrical lithium battery, the disc body part and the tail body part of the positive collector disc are reasonably designed, so that the cylindrical lithium battery is balanced in the aspects of safety, liquid injection performance, weldability and the like.

The invention relates to the technical field of pipeline welding, in particular to a welding structure for a reinforcing ring on the outer surface of an anti-corrosion pipe, which comprises a frame body, two semicircular supports for supporting the anti-corrosion pipe are arranged above the frame body, the axes of the two semicircular supports are the same, and a fixing structure for fixing the reinforcing ring is arranged between the two semicircular supports. Welding guns used for welding the reinforcing ring are arranged on the two sides of the fixing structure correspondingly, semicircular arc-shaped sliding rails are arranged on the two sides of the reinforcing ring, arc-shaped sliding rods are slidably connected into the arc-shaped sliding rails, the welding guns are connected to one ends of the arc-shaped sliding rods, and the effect of improving the welding efficiency of the reinforcing ring is achieved.

The steel wire rod for the low-carbon welding wire comprises the following chemical components in percentage by weight: 0.06 to 0.08 percent of C, 0.81 to 0.87 percent of Si, 1.41 to 1.47 percent of Mn, less than or equal to 0.023 percent of P, 0.008 to 0.015 percent of S, less than or equal to 0.010 percent of Al, more than or equal to 1.67 percent of Mn / Si and the balance of Fe and inevitable impurities. The invention further provides a production method of the steel wire rod for the low-carbon welding wire, and the steel wire rod for the low-carbon welding wire is prepared through a molten steel smelting procedure, a refining procedure, a casting procedure, a heating procedure, a temperature control rolling procedure and a slow cooling procedure which are sequentially carried out. The tensile strength of the wire rod is smaller than or equal to 550 Mpa, the percentage elongation after fracture is larger than or equal to 35%, the drawing performance is good, and the gas shielded welding wire with the diameter ranging from 0.8 mm to 1.2 mm can be produced; welding wire seam metal provided by the product is good in mobility, a welding pool is fast to solidify, and welding seam formability is good. In addition, the unique slow cooling process enables metallographic phase transformation to be sufficient, the use aging period of the product is shortened by half, and therefore the production cost of a manufacturer is reduced.

The invention relates to the technical field of carbon dioxide recovery systems, in particular to a carbon dioxide recovery system assembly connecting device which comprises a transverse pipeline and L-shaped pipelines evenly welded to the transverse pipeline. Welding equipment is used when the connecting device is assembled, the welding equipment comprises a bottom plate, a vertical plate is arranged on the left side of the bottom plate, and a bearing and fixing mechanism used for fixedly installing the transversely-arranged pipeline is arranged on the vertical plate; a clamping fixing mechanism is slidably arranged on the right side of the upper surface of the bottom plate. According to the technical scheme, the multiple L-shaped pipelines can be synchronously clamped and fixed, the spacing distance between the pipelines can be synchronously and evenly adjusted, meanwhile, the perpendicularity of the vertical sections of the L-shaped pipelines can be guaranteed, in addition, pressing can be conducted after the transversely-arranged pipelines and the L-shaped pipelines are in butt joint, and the welding quality is guaranteed.

The invention relates to the technical field of electronic component welding, and discloses an electronic component manufacturing welding fixing device which comprises a containing box and further comprises a fixing unit arranged on the containing box. The fixing unit comprises an overturning positioning part arranged on the containing box and a clamping part arranged on the overturning positioning part, and the overturning positioning part comprises a structural assembly arranged on the containing box, an overturning assembly arranged on the structural assembly and a clamping assembly arranged on the structural assembly. According to the electronic component manufacturing, welding and fixing device, by lifting the overturning plate upwards, the sliding rod slides in the bottom vertical groove, the V-shaped groove, the steering groove and the top vertical groove, under the action of the bottom vertical groove, the V-shaped groove, the steering groove and the top vertical groove, the overturning plate can be overturned by 180 degrees, welding is facilitated, meanwhile, adjustment is also facilitated, the welding steps of operators are reduced, and the welding efficiency is improved. And the welding efficiency is improved, so that the welding between the electronic component and the circuit board is more stable.

The invention relates to the technical field of building material welding, in particular to a full-automatic multi-point mesh welding machine based on a rolling type positioning structure, which comprises a bottom plate, two bases and two guide rails are arranged at the top of the bottom plate, an electric sliding plate is slidably connected in the bases, an electric sliding seat is slidably connected in the guide rails, and a bearing frame is fixedly connected to the top of the electric sliding plate. A circular groove is formed in the inner side of the bearing frame, a rotary disc is movably connected into the circular groove through a bearing, and a material supporting assembly is arranged on the outer side of the rotary disc. Compared with the prior art, a plurality of annular metal positions are fixed in advance, then the material clamping assembly and the material supporting assembly are matched with each other, continuous feeding, continuous positioning and fixing of long-strip metal are achieved, and the process has the advantages of automatic feeding, automatic butt joint fixing and positioning and automatic welding position switching; and the welding efficiency and quality of the reinforcement cage are greatly improved.

The invention belongs to the technical field of welding, and discloses a welding device special for circumferential welds.The welding device comprises a welding base, mounting frames are fixedly connected to the two sides of the welding base, a mounting block is fixedly connected to the top of the welding base, a limiting sleeve is fixedly connected to the middle section of the bottom of each mounting frame, and a push rod is slidably connected to the interior of each limiting sleeve. A rotary shaft rotates to drive an ejector rod to rotate, the ejector rod rotates to push a push rod to move to eject a first clamping block out of a limiting clamping groove, and when the ejector rod continues to rotate to be separated from the push rod, the first clamping block is matched with a short groove of the limiting clamping groove due to gravity and elastic force of a spring at the moment; due to the fact that the first clamping block and the limiting clamping groove are matched and enter the short groove from the long groove, the distance between the welding gun and the welding part is lengthened, the welding part is welded again, layered welding is achieved, the welding speed and the filling rate of the welding seam can be increased, the mechanical property of the welding seam is improved, and the corrosion resistance of the welding seam is enhanced.

The invention discloses a polish-brush disc forming device which comprises a machine table, a material station, a first machining station and a second machining station are evenly distributed on the machine table in the circumferential direction, a wire planting mechanism and a hot melting welding mechanism are arranged on the first machining station and the second machining station respectively, and a swing mechanism for transferring brush discs is arranged between the wire planting mechanism and the hot melting welding mechanism. According to the invention, a plurality of brush discs without wires are fed to the wire pressing assembly of the swing mechanism one by one, so that the brush discs without wires are subjected to wire planting processing and wire bundle welding processing in sequence through the swing mechanism to become the polishing brush discs with a polishing function, the automation degree of polishing brush disc processing is improved, the time and cost consumed by manual polishing brush disc processing are reduced, and the production efficiency is improved. And the forming efficiency of the polish-brush disc is improved.

The utility model relates to welding machine technical field especially for a kind of welding machine of convenient dismounting replacement welding head, including machine body, the lower part of the right end of machine body is connected with connecting line, the end fixedly connected with handheld welding gun of connecting line away from machine body, the middle part fixedly connected with mounting block in the front end of handheld welding gun, the front end of mounting block is equipped with connecting groove, the inside of connecting groove is clamped and is connected with installation component, the front part of mounting block upper end and lower end are all equipped with embedding slot, the left end and right end of mounting block are all equipped with pop-out slot, the lower end of machine body four corners is fixedly installed with moving mechanism.The welding machine of the utility model is convenient to dismount replacement welding head, the welding head body is conveniently and quickly installed on handheld welding gun, also convenient subsequent quick dismounting replacement, whole process operation is simple, shortens the replacement time of welding head body, especially suitable for the welding operation scene of high work efficiency requirement, such as production line batch welding.

The utility model discloses a welding block preheating mechanism which comprises a preheating support, preheating cavities are installed on the two sides of the preheating support respectively, a plurality of infrared heating pipes are arranged and distributed at the lower ends of the preheating cavities, and an air inlet pipeline is connected to the middle of the upper end of each preheating cavity. A preheating cavity is arranged in the preheating support, a preheating vertical moving sliding rail is fixed to the preheating support in the vertical direction, the preheating cavity slides on the preheating vertical moving sliding rail, a protection box is fixed to the side edge of the preheating cavity, a preheating control panel is installed in the protection box, and the preheating control panel is in signal connection with the infrared heating pipe. According to the welding block preheating mechanism, the welding block can be heated at high temperature in advance before the welding wire, the welding block and the half battery piece are subjected to laser welding, the welding process is guaranteed to be smooth, the temperature rising time during laser welding is shortened, energy consumption is reduced, and the welding success rate is increased.

The lithium battery module welding equipment comprises a rack and further comprises an operation table, the operation table is connected to the lower portion of the rack, and a first feeding mechanical arm, a second feeding mechanical arm and a discharging mechanical arm are arranged on the side face of the operation table; and the welding machine is connected to the operation table. A battery is obtained from a first feeding table through a first feeding mechanical arm, the battery is placed in a discharging base below the battery, a pole piece is obtained from a second feeding table through a second feeding mechanical arm, the pole piece is placed on the battery, a welding machine welds the pole piece and the battery, and after welding is completed, a monitoring mechanism observes whether welding is qualified or not. The discharging mechanical arm places the qualified batteries on the first discharging table, and places the unqualified batteries on the second discharging table, by integrating a plurality of automatic assemblies, the efficient welding process and real-time quality monitoring are achieved, the production efficiency and the product quality are improved, the important application value is achieved, and the working efficiency is improved.

The invention discloses a flexible circuit board welding device, and particularly relates to the technical field of flexible circuit board welding, the flexible circuit board welding device comprises a shell, four corners of the lower end of the shell are fixedly connected with supporting legs, the left end of the shell is fixedly provided with a control box, and the rear side of the upper part of the inner surface of the shell is provided with a welding assembly; the inner surface and the left end of the shell are jointly provided with an overturning preheating assembly, and the upper portion and the right portion of the inner surface of the shell are jointly provided with a smoothing assembly. According to the welding device for the flexible circuit board, by arranging the overturning and preheating assembly, the flexible circuit board can be automatically fixed in the conveying process, overturning and preheating are combined, the flexible circuit board is heated more uniformly, thermal stress generated in the welding process is reduced, and the welding quality of the flexible circuit board is improved. The risk that the circuit board is damaged due to rapid temperature change is reduced, the welding process is more uniform and efficient, moisture, oil stains and other impurities on the surface of the circuit board can be more effectively removed, and better conditions are created for welding.

This utility model relates to the field of laser welding technology and proposes an underwater welding laser head, including a stainless steel tube cover; a connecting plate fixedly connected to the inner wall of the stainless steel tube cover, one end of which is fixedly connected to the end of the laser welding head; a spray disc fixedly connected to the lower end of the inner wall of the stainless steel tube cover, with spray holes at equal angles at the bottom of the spray disc; a connecting pipe extending to the outside of the stainless steel tube cover fixedly connected to one side of the top of the spray disc, with the bottom end of the connecting pipe communicating with the interior of the spray disc; and a protective cover movably connected to the bottom of the stainless steel tube cover, with fixing components at the top of the protective cover and the bottom of the stainless steel tube cover. Through the spray disc, connecting pipe, and spray holes, an umbrella-shaped protective gas curtain can be sprayed out, ensuring that a small area below the end of the laser welding head is free of water, facilitating welding operations. At the same time, high-pressure gas blows away welding fumes, ensuring smooth welding.

The invention relates to the technical field of welding, and particularly discloses an electromagnetic valve seat support welding tool clamp which is characterized in that a base frame is provided with a clamping piece used for clamping a shell and driving the shell to rotate, a material frame used for feeding a support and a clamping assembly used for controlling the support and the shell to be positioned; the first rod is in sliding and rotating connection with the material frame through a first elastic piece, the outer clamping piece is in sliding and rotating connection with the material frame through a second elastic piece, the material frame is provided with a sliding way for the first rod and the support to move, and the end of the first rod is provided with a conical part, a limiting part, an installation part and a matching part which are sequentially and coaxially arranged. An inner clamping piece is slidably arranged in the mounting part in the radial direction of the mounting part through a third elastic piece, a matching rod is slidably arranged in the mounting part through a fourth elastic piece, a rack used for driving an outer clamping piece to rotate is slidably arranged on the material frame, and the rack is rotationally connected with the first rod.

The utility model relates to the technical field of heat exchange equipment maintenance, and discloses a finned tube head welding seam maintenance device for an air cooler tube bundle box. The device is composed of a cylindrical head screw, a gasket, a positioning sleeve, a positioning mandrel, a cutter bar, a guide positioning ring, a guide threaded sleeve, a threaded sleeve external thread, a limiting ring, a bearing, a positioning screw, a locking sleeve, an alloy blade, a cutter holder and a screwed plug hole. The cutter bar penetrates through the air cooler tube bundle to the tube head at the other end through the screwed plug hole, the positioning end of the cutter bar is inserted into the tube head hole at the other end, and the hard alloy blade corresponds to the welding seam position of the tube head of the air cooler tube bundle; the middle part of the cutter bar is provided with a guide screw sleeve for positioning and guiding a screwed plug hole; the tail part of the cutter bar is driven by a magnetic drill to operate; the cutter bar drives the hard alloy blade to spot and cut a welding seam in the air cooler tube bundle and the tube head; welding ring protrusions or flaws at the welding seam position between the tube bundle and the tube head can be removed, it is guaranteed that the welding seam of the tube head is smooth, and the service life of the air cooler tube bundle is prolonged.

The utility model discloses a solar photovoltaic assembly welding jig which comprises a base, a welding assembly arranged in the middle of the interior of the base, a conveying belt arranged above the base, a welding jig arranged in the conveying belt, and positioning grooves formed in the conveying belt in an array mode. A battery cavity is formed in the middle of the upper portion of the welding jig, welding grooves are formed in the battery cavity in an array mode, limiting grooves are formed in the left side and the right side of each welding groove respectively, welding strips are arranged above the limiting grooves, and adsorption holes are formed in the bottoms of the limiting grooves, so that the accurate position of a battery piece in the welding process is guaranteed, and the welding quality is guaranteed; the three welding groove arrays are formed in the battery cavity, a plurality of welding spots can be welded at the same time, the welding efficiency is greatly improved, the welding spots can be adsorbed through the adsorption holes, the welding quality and precision are guaranteed, welding errors can be reduced through scaling powder of the welding spots at the bottom of the battery piece, and the welding process is smoother.

The present invention relates to the field of welding technology, and specifically discloses a welding fixture for an electromagnetic valve seat bracket. A clamping piece for clamping an outer shell and driving the outer shell to rotate, a material rack for loading the bracket, and a clamping assembly for controlling the positioning of the bracket and the outer shell are provided on a base frame. The clamping assembly includes a rod one connected to the material rack for sliding and rotation through an elastic member one, an outer clamp connected to the material rack for sliding and rotation through an elastic member two, a slideway for moving the rod one and the bracket is provided on the material rack, the end of the rod one has a cone portion, a limiting portion, a mounting portion, and a matching portion coaxially arranged in sequence, an inner clamp is provided in the mounting portion for sliding along its radial direction through an elastic member three, a matching rod is provided in the mounting portion for sliding through an elastic member four, a rack for driving the outer clamp to rotate is slidably provided on the material rack, and the rack is rotationally connected to the rod one. The present invention is conducive to accurately clamping the outer shell and the bracket to facilitate smooth welding.

The utility model provides a jointed board adjustor, which is used for butt joint of steel plates and comprises a support frame, a first connecting part and at least two support parts, the support frame is provided with the first connecting part and the at least two support parts, and the support parts are used for abutting against the steel plates needing to be in butt joint from top to bottom; one end of the adjusting screw rod is a thread part, the other end of the adjusting screw rod is provided with a second connecting part, and the thread part is connected with the first connecting part; the adjusting nut is in threaded connection with the adjusting screw rod and is used for adjusting the relative position of the threaded part and the first connecting part; and the reverse hook comprises a third connecting part and a hook part which are sequentially connected from top to bottom, the third connecting part is connected with the second connecting part, and the hook part is used for supporting the bottoms of the steel plates needing to be in butt joint. According to the plate splicing adjuster, flexible butt joint of steel plate pieces can be achieved, the butt joint quality can be guaranteed, and the labor intensity of workers is reduced.

The welding fixture special for the precision parts comprises a workbench, a fixing groove is formed in the top end of the workbench, a threaded rod is rotationally connected between the left inner wall and the right inner wall of the fixing groove, and a motor corresponding to the threaded rod in position is fixedly connected to the side wall of one side of the workbench; the end, close to the motor, of the threaded rod penetrates through the inner side wall of the fixing groove and extends to the outer side of the workbench, the end, located on the outer side of the workbench, of the fixing groove is fixedly connected with the output end of the motor, the threaded rod is sleeved with a threaded block in a threaded mode, and the side wall of the threaded block is slidably connected with the inner side wall of the fixing groove. The fixing clamping plate moves to clamp a part through the threaded rod, the clamping side plate is further arranged to improve the fixing and clamping effect, meanwhile, the connecting supporting plate is used for limiting the position of the part, it is guaranteed that the welding position can be aligned, the fixing clamping plate and the part can rotate along with welding, the part does not need to be disassembled, and welding is facilitated.

The utility model relates to welding equipment technical field especially relates to a kind of ultrasonic welding equipment, its technical scheme includes rack, the workbench is installed on the rack upper end, the workbench is provided with cutting mechanism, ultrasonic welding mechanism and pipe winding mechanism;Second servo motor is provided on the cutting mechanism, and the second servo motor lower end is equipped with cutting piece, mounting bracket is provided on the ultrasonic welding mechanism, ultrasonic welding head is provided on the mounting bracket upper end, and welding piece is provided at the ultrasonic welding head lower end.The utility model is provided with multiple groups of rotary transmission wheel in ultrasonic welding equipment, rotary transmission wheel not only can be successfully delivered to the material welding area, but also can be orderly collected to the material after welding on the wire frame, and cooling fan is provided at welding head, cooling fan is realized to the cooling of welding area, to ensure the smooth progress of welding.

The utility model relates to the technical field of steel structure welding, and solves the problems that a large amount of scrap iron generated by welding can be generated at a welding part during the welding of a clamped steel structure, and the scrap iron is remained on the surface of the welding part, so that the welding proceeding and the attractiveness are influenced. The steel structure welding device comprises a workbench, a rotating groove is formed in the middle of the top of the workbench, discs are arranged at the two ends of the interior of the rotating groove, right-hand and left-hand threaded rods are rotationally connected to the surfaces of the discs, U-shaped frames are arranged at the positions, located on the two sides of the rotating groove, of the top of the workbench, and sliding holes are formed in the two sides of each U-shaped frame in an axial symmetry mode; the surface of the sliding hole is provided with a driving hammer assembly used for impacting the steel structure to remove welding chippings, the driving hammer assembly comprises a spring arranged on the surface of the sliding hole, one end of the spring is fixedly connected with a fixing column, one end, located in the spring, of the fixing column is fixedly connected with a connecting rod, and one end of the connecting rod is fixedly connected with a connecting column.

The utility model belongs to the technical field of seat manufacturing, especially a welding tool, in view of the low positioning accuracy of traditional welding tool, the poor operation flexibility, the deviation caused by the dependence on artificial positioning workpiece, and the problem that the design does not fully consider the convenience and safety, influence welding quality and efficiency etc.

The present invention relates to the technical field of welding equipment, and in particular to an automatic welding equipment for processing a turbocharger, which comprises a bracket, a clamping member and an adjusting control member. When welding the turbocharger, the rotating shaft is positioned by using a positioning unit, and the rotating shaft is driven to rotate by using the positioning unit. Under the action of the clamping member, and when the rotating shaft is not in contact with the impeller, the clamping member applies a clamping force of a preset degree to the impeller, and the clamping member ensures that the impeller and the rotating shaft are in a coaxial state. After the rotating shaft contacts the impeller, the rotating shaft in a rotating state can drive the impeller to rotate. At this time, the adjusting control member adjusts the clamping member to gradually increase the clamping force on the impeller until the impeller is in a stationary state. The clamping force of the clamping member on the impeller just copes with the welding of the impeller and the rotating shaft, thereby preventing the problem of deformation of the impeller caused by excessive clamping force on the impeller during welding. At the same time, it is ensured that the welding process can be completed smoothly, thereby improving the efficiency of welding the impeller and the rotating shaft.

This utility model relates to the field of battery technology, and in particular to an electrode assembly and a battery cell. The electrode assembly has N tabs at its first axial end, where N ≥ 2. Some of the N tabs are designated as first tabs, and the remaining tabs as second tabs. The distance between the wall of the venting channel and the outer wall of the electrode assembly in the radial direction of the battery cell is D (in mm). The width of the tabs in the radial direction of the battery cell is W, where 4 mm ≤ W ≤ 0.5 × D. The distance between adjacent first and second tabs in the radial direction of the battery cell is M, where 1.5 mm ≤ M ≤ 10 mm. This utility model leads the positive and negative tabs out from the same side of the electrode assembly. After the battery cell is assembled, the flow does not need to pass through the large surface of the casing, effectively reducing the battery's internal resistance. It also improves the utilization rate of the internal space of the battery cell, increases the energy density of the battery cell, meets the power consumption and range requirements of devices, and ensures smooth welding of the tabs to the current collector, cover plate, or casing, avoiding interference between multiple tabs and ensuring the performance of the battery cell.

The invention belongs to the technical field of automatic control, and provides a welding machine head and tail automatic centering control system and method.The system comprises a high-definition camera system, a servo control system, a PLC control system and a position detection device.The high-definition camera system comprises a camera, a light sensing source and a man-machine interaction interface; the method comprises the following steps of: sampling and monitoring the positions of a strip head and a strip tail of a steel strip in real time, transmitting data to a PLC (Programmable Logic Controller) control system through high-definition camera system software, analyzing the positions of the strip head and the strip tail by the PLC control system, comparing the positions with a target position, and sending a control instruction to a servo control system according to a position comparison result; an execution structure of the servo control system comprises an electric push rod and a servo motor, and the control system controls the electric push rod to achieve left-right alignment of the steel belt and controls the servo motor to achieve front-back alignment of the steel belt. The high-definition camera system and the servo control system are matched with the programmable controller to complete accurate centering of the steel belt, it is guaranteed that the welding machine completes welding smoothly, the welding seam quality is improved, the fault rate is reduced, the labor delay time and the productivity loss are reduced, and the unit operation rate and the product yield are improved.

This invention discloses a welding device for irregularly shaped sheet metal parts, belonging to the field of sheet metal welding technology. It includes a handle, a welding arm connected to the handle, and a welding head installed at the end of the welding arm. The welding arm includes several spliced ​​joint sleeves, which are connected end-to-end. An included angle exists between the two end faces of each joint sleeve. Adjacent joint sleeves are rotatably connected via bearings. A first motor is installed on the inner wall of each joint sleeve, and a gear is connected to the output end of the first motor. An internal gear ring meshing with the gear is installed on the adjacent joint sleeve. A welding wire is connected to the welding head. The splicing of the joint sleeves forms a channel for the welding wire to pass through. A deflection control component for controlling the angle of the welding head is installed on the outer wall of the welding arm. This invention solves the problem of not being able to clearly observe the state of the molten pool and the alignment of the welding wire due to severe obstruction of the view by the workpiece's structure.

The invention belongs to the technical field of steel plate welding, and particularly relates to a stainless steel plate welding device with a smooth welding seam. A connecting frame and a sliding rail are fixedly connected to the top face of the workbench, a welding mechanism is arranged on the connecting frame, a sliding block is slidably connected into the sliding rail, and a containing plate is fixedly connected to the top face of the sliding block. The sliding plate is driven by the driving mechanism to move downwards, at the moment, the circular hole sucks air, impurities at the gap are sucked into the hollow groove and then fall onto the sliding plate, after the impurities sink to the bottom on the sliding plate, a pair of stainless steel plates are aligned, and then the stainless steel plates are welded through a welding head on the welding mechanism; during welding, the motor needs to be used for driving the lead screw to rotate, the sliding block drives the containing plate to move, welding of the stainless steel plate is completed in the moving process, the to-be-welded position of the stainless steel plate can be cleaned in advance through the mechanism, and the smoothness of a welding seam is guaranteed in the subsequent welding process.

The auxiliary positioning tool for axle welding relates to the technical field of axle welding and comprises a bottom plate, two stand columns are fixedly connected to the upper side of the bottom plate, a first motor is fixedly connected to the outer walls of the sides, away from each other, of the two stand columns, and a pull belt is fixedly connected to the output end of the first motor; one end of the pull belt is fixedly connected with a movable pile, the other end of the pull belt is fixedly connected with a movable pile, sliding grooves are formed in the sides, close to each other, of the two stand columns, and the outer wall of the movable pile is slidably connected with the inner walls of the sliding grooves. The mechanical arm can better operate the axle in the welding process, the welding precision and efficiency are effectively improved, meanwhile, uncertainty caused by manual operation is reduced, and the mechanical arm has the beneficial effects that practicability is high, and the welding precision is prevented from being affected by welding smoke.

The invention discloses friction stir welding equipment for automobile part production and manufacturing, and relates to the technical field of automobile part production and manufacturing. Friction stir welding equipment for production and manufacturing of automobile parts comprises a support mechanism, the support mechanism comprises a bottom plate, stand columns are fixedly connected to the two sides of the upper surface of the bottom plate correspondingly, a middle shaft assembly used for being connected with the automobile parts in a sleeving mode is jointly erected at the upper ends of the two stand columns, and a main welding mechanism used for friction stir welding is arranged in the middle of the upper surface of the bottom plate; the main welding mechanism comprises a welding assembly and a base assembly, the welding assembly comprises a first motor, the output end of the first motor is fixedly connected with a stirring needle, the middle of the stirring needle is movably sleeved with a first shoulder shaft, a first spring wound around the stirring needle is arranged between the first shoulder shaft and the fixed end of the first motor, and the upper end of the first spring is fixedly connected with the first shoulder shaft. Friction stir welding equipment for producing and manufacturing automobile parts can smoothly weld polygonal deep cavities and cylindrical deep cavities, and the application range is widened.