100results about "Electrode features" patented technology

The utility model discloses a modularized projection welding electrode, which belongs to the technical field of projection welding electrodes, and comprises an electrode main body and a connecting seat, a first mounting groove and a second mounting groove are arranged in the connecting seat, a connecting handle is fixed on the top surface of the electrode main body, a connecting rod is fixed at the upper end of the connecting handle, and the connecting rod is connected with the first mounting groove and the second mounting groove. A clamping groove is formed in the outer side of the connecting rod, a movable sleeve is slidably connected to the inner side of the second mounting groove, the upper end of the connecting rod is matched with the inner side of the movable sleeve in an inserted connection mode, a plurality of first buckles are fixed to the bottom face of the movable sleeve, and two second buckles are fixed to the top face of the movable sleeve. The upper ends of the two second buckles are each provided with an inclined face, and two movable grooves are formed in the upper portion of the outer side of the connecting base. According to the utility model, the electrode main body can be quickly dismounted and mounted, and the problems that the connection through threads needs to be frequently screwed in the mounting and dismounting process, and the process is relatively inconvenient are solved.

The invention relates to the technical field of electric welding equipment, and discloses an automatic cleaning device for electrodes of a spot welding machine, which comprises a workbench and further comprises two groups of electrode structures which are symmetrically mounted on the workbench and can be mutually close to or far away from each other for adjustment, each electrode structure comprises an electrode stem and an electrode cap, and a welding area is formed between the two electrode caps; the cleaning structure is arranged on the electrode structure and comprises a scrap collecting plate which is arranged below the electrode rod and can be adjusted to be close to or far away from the axis of the electrode rod, a scraper is installed on the inner wall of the scrap collecting plate, and the tangent plane track of the scraper is the same as that of the electrode cap. The cleaning structure and the electrode rod are integrated, and the time delay assembly is arranged, so that cleaning is started only in a non-spot-welding state, in-situ disassembly-free finishing of the electrode cap is achieved, and the effects that the normal welding rhythm is not affected, manual grinding and frequent electrode replacement are thoroughly omitted, and the continuous operation rate of a production line is remarkably improved are achieved.

The utility model relates to a spot welding head for double-sided welding, which comprises a connecting seat capable of being connected with a mechanical arm, and a deflection mechanism capable of adjustably driving a spot welding gun body to perform arc rotation is arranged on the bottom surface of the connecting seat. The axial lower end, away from the connecting base, of the deflection mechanism is connected with a transverse movement positioning assembly capable of driving the spot welding gun body to synchronously move on the upper side and the lower side of the thick workpiece. The transverse moving positioning assembly is matched with the deflection mechanism to change the working position of the spot welding gun body according to the mode that the transverse moving positioning assembly drives the spot welding gun body to translate while deflecting along with the deflection mechanism, so that a curve welding path is defined; the spot welding gun body is connected with the transverse moving positioning assembly through a telescopic rod. According to the utility model, the welding treatment of a thick workpiece can be efficiently completed in a double-sided synchronous welding processing mode while continuous multi-point welding processing is carried out on a curve welding seam.

The utility model discloses a concrete pole reinforcement cage seam welder electrode disc which comprises a disc body, conductive rollers and supporting shafts, a plurality of notches are formed in the outer circumferential wall of the disc body, the supporting shafts are installed in the notches, and the conductive rollers are rotatably installed on the supporting shafts. The multiple notches are formed in the outer circumferential wall of the disc body, the supporting shafts are installed in the notches, the conductive rollers are rotationally installed on the supporting shafts, in the using process, a main steel bar is supported on the conductive rollers, the conductive rollers roll along with the main steel bar, friction between the electrode disc and the main steel bar is reduced, and the service life of the electrode disc is prolonged.

The utility model discloses a kind of automatic cap changer for uncertain length electrode cap, including body support and the cap-off mechanism and cap installation mechanism being set on body support, the cap installation mechanism includes the cartridge loaded with the electrode cap to be installed, cartridge center is provided with middle shaft, cartridge is rotatably connected between middle shaft, rotating mechanism for rotating cartridge to switch electrode cap is set in cartridge, setting mechanism is set below cartridge for pushing electrode cap to lift in cartridge, and the upper end of electrode cap is kept at the same height position;The utility model can make the height position where electrode cap end is kept consistent when installing electrode cap each time by setting setting mechanism, not affected by the length of electrode cap itself, robot welding tongs can use uncertain length electrode cap when cap installation under the same trajectory each time, realize the purpose of automatic replacement electrode cap.

The utility model relates to a resistance welding electrode tip structure, which consists of a spot welding electrode tip and an electrode stem, and is characterized in that the spot welding electrode tip is in threaded connection with the electrode stem, a flange table of 1mm is arranged at the bottom of the thread of the electrode tip in the circumferential direction, the electrode tip and the electrode stem are fastened through threads, and the flange table of the electrode tip is attached to a flange table at an inner hole of the electrode stem. The vertical force of spot welding is borne, and the electrode tip is embedded into the electrode rod by 5 mm. Inclination and looseness of the electrode tip caused by tangential force generated by the die repairing electrode tip are avoided, and the position precision of spot welding is enhanced. The structure is simple and dismounting is convenient.

The utility model relates to a welding electrode structure and welding equipment. The welding electrode structure comprises an electrode arm, an electrode cap, a clamping plate, a sleeve and a nut, a mounting hole is formed in one end of the electrode arm; one end of the electrode cap is inserted into the mounting hole, and an annular groove is formed in the side surface of the electrode cap; a clamping opening is formed in the clamping plate, and the clamping plate is clamped on the annular groove through the clamping opening; the sleeve is arranged on the electrode cap in a sleeving manner, and external threads are arranged on the sleeve; and the nut is screwed on the sleeve. The welding electrode structure is provided with the clamping plate, the sleeve and the nut, the sleeve is in threaded connection with the nut, and the clamping plate is clamped on the electrode cap to limit the sleeve and the nut between the electrode cap and the electrode arm; when external force is applied through a wrench to enable the nut to rotate relative to the sleeve, the overall length of the structure composed of the sleeve and the nut is increased, so that axial force is applied to the clamping plate, the electrode cap connected with the clamping plate in a clamped mode is ejected out of the mounting hole, disassembly is efficient, and the electrode cap is not prone to being damaged.

The application discloses a sealing and welding device, and belongs to the technical field of laser emitter manufacturing. The sealing and welding device is characterized in that: a first supporting surface and a second supporting surface intersecting each other are arranged on a first electrode to form a bearing area for bearing a pipe base, so that the first supporting surface can be used for supporting a first outer wall of the pipe base, and the second supporting surface can be used for supporting a second outer wall of the pipe base; an avoiding area for avoiding a pipe cap is arranged on a second electrode, a press-welding part is arranged at the edge of the avoiding area, the pipe cap can be pressed on the pipe base by the press-welding part, a first welding section arranged opposite to the first supporting surface is used for pressing a first combining part of the pipe cap on a first inner wall of the pipe base, and a second welding section arranged opposite to the second supporting surface is used for pressing a second combining part of the pipe cap on a second inner wall of the pipe base, so that the pipe cap and the pipe base can be welded on different planes, and the sealing and welding device can be used for packaging laser emitters with the pipe cap and the pipe base sealed on different planes.

The full-automatic electrode cap coping device comprises a workbench, a coping box is fixed to the workbench, a gear box is installed in the coping box through a lifting mechanism, and the bottom of the gear box is rotationally sleeved with a plurality of first rotating shafts arranged at equal intervals; a rotating mechanism used for driving the first rotating shaft to rotate is installed in the gearbox, an installation base is fixed to the bottom end of the first rotating shaft, a second sliding block is installed in the installation base in a sliding mode, an adjusting mechanism used for driving the second sliding block to move horizontally is installed in the installation base, and a tool apron is fixed to the second sliding block. A sharpening tool is installed on the tool apron, and a visual camera is installed at the bottom of the gearbox. The device is high in machining efficiency and convenient to operate.

This utility model relates to the field of steel truss welding technology and discloses a steel truss welding device, including a spot welding gun and a welding electrode, as well as a movable component, a sleeve component, and an adsorption seat. The movable component includes two strip blocks and an elastic movable part. The two strip blocks are fixedly installed on the spot welding gun, and the elastic movable part is disposed between the two strip blocks. The sleeve component includes a rotating plate, a protective part, and a grinding part. The rotating plate is rotatably installed in the elastic movable part. After using the spot welding gun, the operator can detach the rotating ring and the sleeve component from the adsorption seat. Then, while rotating the sleeve component toward the welding electrode, the operator can pull the rotating ring and the sleeve component to the left to move the protective sleeve to the front of the welding electrode. At this time, the rotating ring is released, and the protective sleeve can be sleeved on the welding electrode under the push of the first spring, forming a protection for the welding electrode and slowing down the oxidation rate of the welding electrode.

The utility model discloses a kind of projection welding nut mistake-proof lower electrode devices, relate to automobile parts manufacturing technical field, including bracket fixed block, the inside connection of bracket fixed block has projection welding lower electrode seat, the top of projection welding lower electrode seat is connected with projection welding lower electrode, the inner side wall of projection welding lower electrode is connected with projection welding nut positioning pin, the middle part of one side of bracket fixed block is screwed with first fastening bolt, the bottom edge of bracket fixed block is connected with bakelite connecting plate by bolt, the bottom of bakelite connecting plate is provided with adjusting mechanism;The projection welding nut mistake-proof lower electrode device, when position is correct, mistake-proof pin is located in part hole, if position is not correct, the distance of wrong welding hole and part hole changes, mistake-proof pin cannot enter part hole, to position positioning is carried out, so that welding position always remains correct, avoid welding error, improve the accuracy of welding.

The present invention provides a resistance welding apparatus capable of joining fastening members to the bottom wall and side wall of a workpiece. [Solution] The resistance welding apparatus 1 comprises a first electrode 10, a second electrode 20 that moves toward or away from the first electrode in a first direction Z, and a conductive adapter 30 that moves in a second direction X intersecting the first direction. The adapter enters a first position P1 between the first electrode and the second electrode by moving to one side Xa in the second direction, and retreats to a second position P2 away from the first position by moving to the other side Xb in the second direction. The adapter includes a base portion 31 extending in the first direction, a first extension portion 36 extending from the side of the base portion toward the first electrode in the first direction to one side in the second direction, and a second extension portion 37 extending from the side of the base portion toward the base portion toward the second electrode in the first direction to one side in the second direction.

An improved resistance welding electrode cap is arranged at the end of the electrode rod, comprising: a ring-shaped permanent magnet arranged at the outer edge of the end, a thin-walled high-resistivity magnetic conductive interlayer and an electrode copper core arranged in the electrode cap in sequence, and a cavity arranged at the top end for circulating cooling water, the upper end of the thin-walled high-resistivity magnetic conductive interlayer is in contact with the cooling water in the cavity, the lower end is flush with the end face of the electrode cap and the ring-shaped permanent magnet, and three current density distribution areas are formed between the electrode end face and the workpiece to be welded, i.e. the ring-shaped permanent magnet area with the smallest current density, the interlayer inner area, and the permanent magnet inner area and the interlayer outer area with the largest current density. By embedding the thin-walled high-resistivity magnetic conductive interlayer in the electrode cap, the current density distribution is changed to reduce the current density of the central part of the electrode, thereby reducing the heat generation in the central area while ensuring the heat generation in the central area, reducing the maximum indentation depth of the central area, and reducing the surface indentation.

The utility model discloses an electric resistance welding double-point spot welding electrode, which relates to the field of spot welding electrodes, and comprises an electrode holder, an electrode main body is movably mounted in the electrode holder through an electrode sleeve, the electric resistance welding double-point spot welding electrode further comprises a mounting assembly, a threaded groove I is formed in the electrode holder, and a threaded cylinder is in threaded connection with the interior of the threaded groove I; an electrode sleeve is in threaded connection with the interior of the threaded cylinder, and an electrode main body is sleeved with the electrode sleeve; and an anti-falling assembly. According to the utility model, the new electrode sleeve sleeved outside the electrode main body is in threaded connection with the second threaded groove reserved in the inner ring of the threaded cylinder, and then when the length of the exposed part of the whole electrode main body is adjusted, the threaded cylinder fixedly connected with the driving plate is driven to rotate through the rotation of the driving plate; and the threaded barrel in threaded connection with the first threaded groove reserved in the electrode holder synchronously generates up-down position change movement in the rotating process, so that the height position of the electrode main body can be synchronously adjusted, and the electrode main body can be conveniently and smoothly used in the follow-up process.

The utility model discloses a butt-welding machine and relates to the technical field of welding equipment, the butt-welding machine comprises a rack, a feeding mechanism, a rotating mechanism and a butt-welding mechanism, the rack is provided with a feeding station and a butt-welding station; the feeding mechanism comprises a moving driving part, a feeding driving part and a plurality of tongs. The moving driving part drives the feeding driving part to be close to or away from the feeding station. The feeding driving part drives the grippers to get close to or get away from each other to grip and release materials. The rotating mechanism comprises a rotating driving piece, a rotating disc and two material bearing blocks, and the rotating driving piece drives the rotating disc to rotate; the two material bearing blocks are arranged on the two opposite sides of the rotary disc correspondingly and face the feeding station and the butt-welding station correspondingly. The butt-welding mechanism comprises a butt-welding driving piece and a butt-welding electrode, and the butt-welding driving piece drives the butt-welding electrode to ascend and descend so as to be close to or away from the butt-welding station. Materials located at the butt-welding station are welded and fed to the feeding station at the same time, the material feeding efficiency is improved, and therefore the requirement for efficient production is met.

An electrode cap magazine loading device and method of use are provided. The electrode cap loading device can have a body including at least one port to access an electrode cap guide tube configure to install an electrode cap into a magazine. A plunger can be partially disposed within the body and can include an actuation mechanism, such as a spring. A user can insert an electrode cap into the device through the at least one port causing the cap to reside in the electrode cap guide tube. The user can depress the plunger thereby forcing the electrode cap into the magazine.

The invention relates to a stainless steel micro-indentation resistance spot welding process, and belongs to the technical field of welding. The electrode cap is divided into a center part and an edge part, and the current distribution is controlled by an insulating layer on the outer side of the center part. The two parts are made of homogeneous materials with good thermal conductivity, the heat dissipation effect of the electrode cap is guaranteed, and the yield strength of stainless steel base metal in the high-temperature welding process is improved. Meanwhile, the contact surface of the electrode cap and the plate is a plane, so that the depth of the indentation on the surface of the welding joint is further reduced. The resistance spot welding process comprises three stages of pre-pressing, electrified welding and cooling, and high efficiency and stability of the welding process are ensured by adjusting accurate welding parameters such as electrode pressure, current magnitude and welding time. The surface performance of a stainless steel resistance spot welding joint is improved, the problem of surface indentation in the resistance spot welding process of a stainless steel material is effectively solved, and a more reliable and efficient welding technology choice is provided for the high-end manufacturing field of automobiles, railway vehicles and the like.

The invention belongs to the technical field of welding equipment, and particularly provides a pressure resistance welding roller type welding robot and a welding method, the welding robot comprises a welding main machine and a welding module, the welding main machine is fixedly arranged on a machine box, the machine box is fixedly installed on a frame main body, and guide wheels are arranged at the two ends of the frame main body; supporting side wheels are arranged at four corners of the frame main body; the welding module comprises two welding assemblies, the two welding assemblies are located on the two sides of the to-be-welded welding part correspondingly, each welding assembly comprises a welding roller, the welding rollers are rotatably connected and installed on the corresponding moving bases, and the moving bases are fixedly installed at the telescopic ends of air cylinders; and the pre-tightening module is mounted on the moving seat, and the pre-tightening module is used for extruding the welding parts to a certain degree while the welding roller extrudes the welding parts to form pressure resistance welding, so that effective pre-clinging fit is formed between the two welding parts, and the pressure resistance welding effect of the welding roller on the welding parts is improved.

Cap mounting system for the electrode caps (9) of, in particular, robot-controlled welding guns (6), comprising a cap holder (1) positioning the caps in the correct orientation for transfer to the electrode shafts (6.1, 6.2) of the welding gun and a cap feeder (2) loading the cap holder, including a cap supply magazine, characterized in that the cap feeder includes at least one conveying channel (feed hose 4) extending from a refill opening (7) outside the working area of ​​the welding gun towards the cap holder (1), which is closed in cross-section and through which compressed air flows for transporting the cap supply to the cap holder.

The utility model discloses a splicing type electrode arm which comprises an electrode arm body, the electrode arm body comprises a first arm body and a second arm body, a fixing sleeve is arranged on the outer side of the connecting position of the first arm body and the second arm body, a plurality of sets of limiting grooves are evenly formed in the fixing sleeve, and a fixing mechanism is installed at the top end of the first arm body. When one set of arm bodies is replaced, a worker inserts a limiting plate in a limiting mechanism into one side of a limiting groove, a limiting block is supported by a telescopic spring in the insertion process, the limiting plate is rotated to one side of the limiting groove after insertion is completed, at the moment, the limiting block is located on one side of the bottom end of a boss, and then the second arm body can be limited; and after limiting is completed, a worker inserts a fixing bolt into a threaded hole and penetrates through the base, so that connection of the first arm body and the second arm body is achieved, repeated use can be achieved, and the situation that subsequent replacement and connection cannot be achieved due to thread damage is avoided.

A bolt feeder supplies a bolt to a resistance welding machine that performs resistance-welding of a workpiece and the bolt using a lower electrode that is stationary and an upper electrode that moves up and down. The bolt feeder includes: a holder configured to receive the bolt fed by a chute at a receiving position with a head located above a shaft; a cylinder configured to move the holder holding the bolt from the receiving position to a welding position; and a pusher having a smaller diameter than the upper electrode and configured to protrude from and retract into a tip end of the upper electrode. The bolt includes a projection on a top surface of the head which is opposite to a surface provided with the shaft. The lower electrode includes an insertion hole into which the shaft is inserted. The shaft is inserted into the insertion hole when the pusher member which protrudes from the top of the upper electrode pushes an area of the top surface where the projection is absent.

The present application relates to spot welding technical field, disclose a kind of indirect spot method, comprising: in the welding positioning fixture, movable setting electrically conductive plate, electrically conductive plate can slide up and down;The welding piece to be welded is clamped and set between upper and lower electrically conductive plate;The electrode head of welding gun is connected with electrically conductive plate;Start welding gun while electrifying electrically conductive plate, spot welding is carried out on the welding piece to be welded.The present application is when indirect spot operation, using welding positioning fixture, the welding piece to be welded is clamped between upper and lower electrically conductive plate, the welding piece to be welded is fixed, electrically conductive plate is positioned accurately, and electrically conductive plate can be ensured to be closely attached with the welding piece to be welded;Electrically conductive plate is elastically connected on welding positioning fixture and can slide up and down, electrically conductive plate is returned to the same position each time under the resilience of elastic member and is closely attached with the welding piece to be welded, reduce the position deviation before and after welding, guarantee welding precision;Compared with the method of direct welding, reduce the loss of electrode head, reduce use cost.

The application provides a composite electrode cap, which comprises a contact section and a connecting section, the contact section is used for directly contacting a welded workpiece, and the connecting section is used for connecting with an electrode rod or an electrode arm; the contact section and the connecting section are fixedly integrated in a metallurgical bonding mode to form an axial sectional double-layer metal composite structure; and the contact section partially wraps the connecting section at the connecting position of the contact section and the connecting section. The application has reasonable structure, reliable interface, performance synergy, controllable cost and easy industrialization implementation.

To provide a spot electrode capable of preventing a poor weld state in which a thin welded plate in an outermost position is insufficiently joined, when the three or more welded plates, which overlap one another in such a manner that the thin plate-like welded plate is arranged in the outermost position, are joined together by a spot welding method.SOLUTION: A welding electrode 3, which has an axis line L and which is used to overlap-join a plurality of welded plates 51, 52 and 53 together by a spot welding method, comprises a first contact part 31 that is positioned near the center of an apical surface and that is protruded in the direction of the axis line, and a second contact part 32 that is positioned with a space in a radial direction from the first contact part 31 and that is protruded in the direction of the axis line. Either of the first and second contact parts 31 and 32 is further protruded in the direction of the axis line X than the other one of them.SELECTED DRAWING: Figure 9

The invention discloses an automatic welding machine for a cable bridge. The automatic welding machine comprises a conveying frame, welding equipment and a transferring mechanism. A moving mechanism, a welding mechanism and a discharging mechanism are arranged on the welding equipment, and a welding base, an air cylinder, an electrode tip and an electrode base are arranged in the welding mechanism. According to the automatic welding machine for the cable bridge, the electrode block and the electrode tip are directly connected through the conductive terminal, butt joint work of the electrode block and the electrode tip can be completed by achieving insertion, and stable connection between the electrode block and the electrode tip can be completed while electric conduction is achieved through the conductive terminal. Meanwhile, during disassembly, only the unlocking piece needs to be pressed, the unlocking piece is kept to push the limiting tongue piece on the conductive terminal to enable the limiting tongue piece to enter the stamping hole, then the conductive terminal can be taken down under matched pushing of the spring, matching of other tools is not needed, the operation process is simplified, the disassembly and assembly time is shortened, and the disassembly and assembly efficiency is improved. And delay of production schedule due to long-time stop of equipment caused by replacement of the electrode block is avoided.

The invention discloses a swing arm cap replacing machine which comprises a rack, the rack is provided with a rotating shaft capable of rotating, the rack is provided with a driving part used for driving the rotating shaft to rotate, the rotating shaft is provided with a mounting frame, and the mounting frame is provided with a cap mounting mechanism used for bearing an upright electrode cap and an inverted electrode cap and a clamping mechanism. The clamping mechanism is used for clamping an upright electrode cap and an inverted electrode cap which are located on two opposite electrode connecting rods and can loosen the upright electrode cap and the inverted electrode cap, the mounting frame is provided with a first sensor used for detecting the dismounting state of the electrode caps on the electrode connecting rods, and the detection mechanism is used for detecting the rotating angle of the mounting frame. The rotating shaft is driven by the driving piece to rotate to meet the angle requirement when the electrode caps are replaced, and the clamping mechanism and the cap installing mechanism stably replace the upright electrode caps and the inverted electrode caps for the two electrode connecting rods. Compared with a traditional manipulator for moving and changing the angle to replace the cap, the device is low in overall cost. The device is high in automation degree and efficient in cap replacing operation.

The invention relates to a system for realizing automatic disassembly of an electrode cap, which comprises a driving unit, a mounting cross beam, a driving unit transfer mounting plate, a cap disassembly unit, an electrode stem and an electrode cap, and is characterized in that the driving unit is fixed on the mounting cross beam through the driving unit transfer mounting plate, the cap disassembly unit is in transmission connection with the driving unit, and the electrode cap is mounted on the electrode stem; and the electrode cap on the electrode stem is dismounted through the cap dismounting unit. According to the system, method and device for automatically disassembling the electrode cap, the processor and the computer readable storage medium, the flexible cap disassembling claw is adopted, the dimensional tolerance of the electrode cap can be effectively compatible, the unique rolling steel ball guide groove is formed in the gear, and the electrode cap can be automatically disassembled through relative movement of the rolling steel ball guide groove and the rolling steel ball. Therefore, the cap dismounting unit floats in the axial direction of the electrode cap while rotating. According to the electrode cap dismounting device, screwing and drawing actions are combined, the dismounting work of the electrode cap is completed, and the dismounting success rate of the electrode cap is greatly increased.

The plant (1) comprises: holding means (2) adapted to hold at least a first bar and a second bar (4) made of at least one metallic material and extending along relevant longitudinal directions, each provided at its respective ends with a first ending surface (5) and with a second ending surface (6); cutting means (8) adapted to cut the first bar to obtain at least one reinforcement bar which can be inserted within a relevant window / door frame profiled element and a relevant residual bar (9) provided with the second ending surface (6); retaining means (11) adapted to retain the residual bar (9) and the second bar (4) aligned with each other, with the second ending surface (6) of the residual bar (9) facing the first ending surface (5) of the second bar (4); resistance welding means (14) adapted to butt weld the residual bar (9) and the second bar (4) and comprising a pair of electrode assemblies (15), each adapted to contact one respective of either the second bar (4) or the residual bar (9) at the relevant ending surfaces (5, 6) to determine a flow of current; wherein at least one of the electrode assemblies (15) comprises a notched surface (18) provided with one or more sharp projections (19) and adapted to contact the respective bar (4, 9).

The invention relates to a welding protection device for automobile part machining, and relates to the technical field of welding devices.The welding protection device comprises a workbench, a mechanical arm installed on the workbench and an electrode holder arranged on the mechanical arm, an electrode holding rod is arranged on the electrode holder, and an electrode cap is arranged on the electrode holding rod; the electrode holding rods comprise the first holding rod arranged on the welding pliers in a sliding mode and the second holding rod arranged on the welding pliers, the two electrode caps are oppositely arranged, and the workbench is provided with a power piece for driving the first holding rod to slide, a regulation and control assembly for adjusting the temperature of the spot welding nugget and a water cooling assembly for cooling the electrode caps. The method has the advantages that long-time continuous welding machining is achieved, the production efficiency is improved, and meanwhile the mechanical property of welding spots and the appearance quality of workpieces are improved.

This resistance welding device 1 comprises a first electrode 10, a second electrode 20 that moves so as to approach or separate from the first electrode in a first direction Z, and a conductive adapter 30 that moves in a second direction X intersecting the first direction. The adapter enters a first position P1 between the first electrode and the second electrode by moving to one side Xa in the second direction, and retreats to a second position P2 separated from the first position by moving to the other side Xb in the second direction. The adapter includes a base part 31 extending in the first direction, a first extension part 36 extending from a first electrode side in the first direction of the base part to one side in the second direction, and a second extension part 37 extending from a second electrode side in the first direction of the base part to one side in the second direction.