594results about "Resistance electrode holders" patented technology

The invention relates to an intelligent welding robot control method and system based on a deep learning model, and relates to the technical field of welding robos.The intelligent welding robot control method comprises the steps that image detection information generated when a workpiece is welded and welding parameter information of a welding gun are obtained; analyzing and determining a welding position point according to the welding parameter information; based on the welding position points, welding spot image information corresponding to the welding position points and original image information when welding is not conducted are determined from the image detection information; analyzing and determining quality demand information according to the original image information; welding spot quality information is analyzed and determined according to the welding spot image information; and quality adjustment control information is determined according to the deviation condition between the welding spot quality information and the quality demand information, and the quality adjustment control information is output to the welding robot for welding adjustment. The welding device has the effect of improving the welding efficiency.

The invention relates to the technical field of lithium cell spot welding, and particularly discloses a spot welding device for lithium cell processing and production, which comprises a workbench, a working frame is fixed on the top of the workbench, a moving frame is arranged on the surface of the working frame, a spot welding head is arranged on the surface of the moving frame, and a cell part is arranged on the top of the workbench. Connecting sheets are uniformly distributed at the top of the battery core piece; the device further comprises a placing assembly and a weight monitoring part, the placing assembly is arranged on the surface of the workbench, the number of the battery cells is judged by monitoring the weight of the battery cells, the purpose of monitoring the number of the battery cells is achieved, the advancing direction and position of the spot welding head are detected in advance through the pressure monitoring part, and monitoring of the spot welding direction of single-row and double-row battery packs is facilitated; manual direction observation and an intelligent numerical control mode are replaced, stability and simplicity are achieved, meanwhile, the spot welding pressure needed by the spot welding head is judged according to the thickness, monitored by the abutting base, of the connecting piece, and current can penetrate through materials to enable the welding portion to reach the needed melting temperature.

A flash welding machine welds together a first metal product's tail with a second metal product's head. The machine includes a carriage, a first structure with a first grip, a second structure slidingly supported by the carriage with a second grip. The power group includes an inverter, a transformer, a rectifier, a control unit operating the inverter at frequencies greater than 700 Hz, and conductors connected to the first and second grips. The transformer delivers predetermined nominal power at a predetermined nominal supply frequency. The predetermined nominal power is less than the predetermined operating power and the nominal supply frequency is less than 700 Hz. At frequencies greater than 700 HZ, actual power equal to / greater than predetermined operating power, or the predetermined nominal power of the transformer is at least equal to predetermined operating power and nominal supply frequency is greater than 700 Hz, with actual power greater than predetermined operating power.

The invention discloses a high-precision point iridium welding device and process, and relates to the technical field of pen point welding. The device comprises a conveying assembly capable of moving along an annular path, a welding assembly arranged below the conveying path and positioning tools arranged corresponding to conveying blocks. The conveying assembly comprises a plurality of conveying blocks, and the positioning tool is used for inserting a to-be-welded pen point base material; the welding assembly comprises a hopper, a feeding pipe coaxially connected with the hopper in a sliding mode, an electrode ring fixed to the top end of the feeding pipe and an inverted-cone-frustum-shaped iridium particle groove formed in the top end. The hopper can be filled with iridium particles to be welded, the feeding pipe can ascend and descend in the vertical direction, and the iridium particle groove can bear one iridium particle. Through cooperation of the conveying block and the positioning tool, quick assembly and feeding of the pen point base material are facilitated, the feeding difficulty is reduced, and manual feeding is more labor-saving.

The invention belongs to the technical field of high-speed line welding, and particularly relates to an electric resistance welding machine head and electric resistance welding device.The electric resistance welding machine head comprises a mounting frame, an air cylinder and a displacement sensor which are fixedly connected to one side of the mounting frame, a movable base connected to one side of the mounting frame in a sliding mode and a first welding head fixedly connected to one side of the movable base, and the telescopic end of the air cylinder is connected with one side of the movable base; the air cylinder and the displacement sensor are adopted, the displacement sensor and the air cylinder are high in response speed and are matched with each other to achieve stroke control welding, the welding head is driven to conduct welding in a stroke triggering mode, the welding state is confirmed through the position, and the air cylinder controls displacement and monitors the displacement amount to ensure welding consistency; and the welding precision, the welding stability and the service life of the pressure welding machine head structure are superior to those of a pressure welding machine head structure in the prior art.

The spot welding robot based on industrial welding machining comprises an outer frame fixing assembly, a machined part conveying assembly and a welding assembly, the outer frame fixing assembly comprises an outer frame, an outer ring frame, a first driving part, an inner ring frame and a limiting clamping rod, the outer ring frame is arranged in the outer frame, the first driving part is arranged on the outer frame, and the inner ring frame is arranged on the outer frame; the inner ring frame is arranged at the output end of the driving part, the multiple sets of limiting clamping rods are arranged on the inner ring frame in an annular array mode, the machined part conveying assembly is arranged in the outer frame fixing assembly and comprises a driving mechanism and a positioning mechanism, the driving mechanism is movably arranged in the outer frame fixing assembly, and the positioning mechanism is arranged on the outer frame fixing assembly. The positioning mechanism is movably arranged on the driving mechanism, and the welding assembly is arranged in the outer frame fixing assembly. Therefore, the ejector rod is linked with the variable-diameter annular plate, conveying of the machined part and the to-be-machined part is completed, the to-be-machined part is reinforced in cooperation with the telescopic mechanism, and the stability of the machined part is guaranteed.

The invention relates to a spot welding clamp (1) comprising a lower welding arm (12) carrying a first electrode support (121) and a first electrode (122), and an upper welding arm (11) carrying a second electrode support (111) and a second electrode (112) for performing a spot welding between a first sheet metal part and a second sheet metal part by bringing the first electrode (122) into contact with the first sheet metal part and the second electrode (112) into contact with the second sheet metal part, the second electrode support (111) comprising an internal passage path for a heat transfer fluid intended to evacuate the thermal energy which accumulates in the second electrode (112) during the welding phases,the upper welding arm (11) comprising an internal supply conduit (111A) for heat transfer fluid to the internal fluid passage path of the second electrode support (111) and a discharge conduit (112A) for heat transfer fluid coming from said internal heat transfer fluid passage path, the second electrode support (111) being mounted in an adjustable manner on the upper welding arm (11), and in that it comprises a rigid fluid connection element (13) secured to the upper welding arm (11).,

The invention belongs to the technical field of welding equipment, and particularly relates to electric automobile body welding equipment which comprises a mechanical arm and a control end arranged on the side wall of the mechanical arm, the mechanical arm is electrically connected with the control end, two welding units are installed at the driving end of the mechanical arm, and each welding unit comprises a shell, the shell is installed at the driving end of the mechanical arm, a plurality of electrode tips are arranged in the shell, a chain driving assembly is installed in the shell, and each electrode tip is provided with an elastic connecting assembly. The problems of oxidation, too large roughness and the like of the electrode tips due to too high high-frequency welding temperature can be avoided as much as possible in the vehicle body resistance welding process, all the electrode tips can be polished, the polishing time can be automatically controlled, meanwhile, the electrode tips can be rapidly cooled, oxidation films are prevented from being generated, the stability of the electrode tips in use is improved, and the service life of the electrode tips is prolonged. And the welding quality is improved.

According to the welding machining device and method for the inner net and the outer net of the filter, the welding machining device comprises the machining machine table, the lifting mechanism, the moving mechanism, the roller electrode, the shaft electrode and the hooping mechanism, and complex spatial spiral movement is simplified into single axial movement of the roller electrode in a joint channel; an expensive and complex high-precision multi-axis linkage numerical control system is not needed, only one common motor is needed to drive a roller electrode to linearly walk along a joint channel, inclined joint welding of the filter metal net is completed, a workpiece can be driven to rotate in a pure mechanical mode, the cost is low, the welding efficiency is high, and through a micro forging and pressing mode in advance, the welding efficiency is high. According to the method, a solid metal strip with the width of about 1-2 mm and without through holes is formed, and the solid strip provides a continuous and uniform contact surface for a subsequent roller electrode, so that a constant resistance and ideal current path is provided, controllable and predictable generation of welding heat is realized, and the problems of pseudo soldering and overburning caused by meshes are greatly reduced.

The utility model belongs to the technical field of steel reinforcement framework machining, and discloses a T-beam web framework single-piece welding device which comprises a pedestal, a first welding mechanism, a second welding mechanism, a third welding mechanism and a clamping mechanism, the pedestal comprises a plurality of positioning groove seats, and the positioning groove seats can be matched with the clamping mechanism to clamp and fix horseshoe long stirrups. The first welding mechanism and the third welding mechanism are arranged on the pedestal in a sliding mode in the first direction, and the second welding mechanism is located between the first welding mechanism and the third welding mechanism and comprises two second welding assemblies moving in the opposite direction or in the opposite direction in the second direction. The first welding mechanism, the second welding mechanism and the third welding mechanism are used for welding all to-be-welded points on horseshoe ribs and long stirrups, automatic welding of T-beam web framework single pieces is achieved, and the welding efficiency and the forming precision are high.

The single-double-hand hammering spot welding gun comprises a gun body, a sliding rod is arranged at the front end of the gun body, one end of the sliding rod is connected with the gun body, and a spot welding head is arranged at the other end of the sliding rod; the spot welding head comprises a welding unit and a grounding unit, the welding unit is connected with a power supply line, the grounding unit is connected with a ground wire, an insulation structure is arranged between the welding unit and the grounding unit, the grounding unit is fixedly arranged on the sliding rod, and the welding unit extends out of the grounding unit. The extension end of the welding unit retracts towards the grounding unit after being pressed in contact with the metal plate, so that the grounding unit is in contact with the metal plate for welding at the same time; a sliding weight is arranged on the sliding rod, the sliding rod is sleeved with the sliding weight, and the sliding weight can slide along the sliding rod. According to the single-double-hand hammering spot welding gun, due to the fact that the single-double-hand hammering spot welding gun is provided with a ground wire connecting structure and a drawing function at the same time, matching of corresponding external devices is not needed, and the portability and convenience of equipment are improved.

The utility model discloses a welding device and a welding system. The welding device comprises a welding gun; the electrode assembly comprises a first electrode and a second electrode, and the second electrode is suitable for being connected with the welding gun; the positioning block is connected with the first electrode; the correction assembly is suitable for being arranged between the first electrode and the second electrode, the correction assembly comprises a copper electrode, a to-be-welded part is arranged on the copper electrode, the contact end of the first electrode is suitable for being in surface contact with the copper electrode, and the contact end of the second electrode is suitable for being in surface contact with the to-be-welded part. According to the welding device, the end face of the electrode is enlarged, indentations are reduced, the appearance quality problems of welding spot distortion and too deep indentations on the appearance face in the existing manual resistance spot welding process are solved, the situation that the welding spot is distorted due to the fact that the electrode assembly is difficult to be perpendicular to the plane of the piece to be welded is avoided, and the appearance quality of the welding spot is optimized.

A resistance welding device. The device includes: a clamp intended to support an arm including a first part supporting a stationary electrode and a second part supporting a translationally movable electrode, the electrodes being intended to be passed through by an electrical current and to clamp metal elements in order to weld them The movable electrode is configured to move between a working position, wherein the electrodes clamp the metal elements to be welded, and two opening positions making it possible to insert, between the electrodes disposed opposite one another, the metal elements to be welded.

The invention relates to the technical field of resistance spot welding, in particular to a cement telegraph pole reinforcement cage automatic binding and welding integrated device based on PLC control. The device comprises a working rotating disc rotationally connected with a mounting support, a machining channel allowing the reinforcement cage to horizontally penetrate through is formed in the center of the working rotating disc, a conductive wheel and a pressing assembly are arranged on the same side of the working rotating disc, and the conductive wheel, the pressing assembly and the reinforcement cage form a closed conductive loop. When the diameter of the produced reinforcement cage is small, the axial component force applied to the spiral bar by the cylindrical pressing wheel is guided by the inclined plane of the groove, and forced friction is reduced. When the diameter of a produced reinforcement cage is large and the reset slope of the circular truncated cone pressing wheel presses a spiral bar, the acting direction of force is more deviated to the radial direction, the axial component force is reduced, and therefore the axial friction force is reduced. When the reset slope on the periphery of the round table roll welding wheel is in contact with the spiral rib, an inclined contact line along the conical surface is formed.

The present invention discloses a combined projection welding process for a refrigeration compressor housing, and discloses a method of combined welding of multiple workstations through one device and one process. For metal workpieces with different shapes, materials, positions, etc., the combined projection welding of the housing assembly is completed by performing one-time clamping and positioning welding on the housing through a combined projection welding device for the refrigeration compressor housing, which is easy to realize an automated projection welding production line; a combined projection welding device for a refrigeration compressor housing is also disclosed. By setting a combined power head with a combined power piston and a pushing device inside, an upper electrode seat and a lower electrode seat, the clamping and projection welding operations of multiple workpieces are realized simultaneously, effectively accelerating the production rhythm and improving production efficiency; by setting a combined power piston and multiple pushing devices at the tops of different upper electrodes, and lower electrodes with different depths at the lower electrode seat, the welding quality of simultaneous projection welding of different workpieces is improved, and the energy consumption and manufacturing cost of the device are reduced.

The invention belongs to the technical field of welding production, and particularly relates to an integrated robot servo bump welding gun and a monitoring method. The welding gun comprises a gun body assembly, an electrode arm, a nut retainer and a displacement sensor. The gun body assembly is arranged on the robot body, a driving motor and a transformer are arranged on the upper side and the lower side of the gun body assembly respectively, a first convex spot welding electrode is arranged at the driving end of the driving motor, and the nut retainer is arranged at the end of the first convex spot welding electrode; the electrode arm is arranged on the lower side of the gun body assembly and electrically connected with the transformer. The electrode arm is provided with a second convex spot welding electrode; the driving motor, the transformer and the displacement sensor are all electrically connected with the robot body. The method can adapt to salient point welding of different workpieces, parameters in the welding process are monitored in real time and compared with preset parameters for analysis, the welding quality problem is found and solved in time, potential faults are early warned in advance, and the downtime and maintenance cost of equipment are reduced.

The invention discloses a double-windproof-ditch type automatic anode plate stacking and welding all-in-one machine which sequentially comprises a feeding and overturning mechanism, a sliding welding mechanism, a vertical stacking mechanism and a truss carrying mechanism arranged among the feeding and overturning mechanism, the sliding welding mechanism and the vertical stacking mechanism and used for carrying anode plates along an anode plate machining route. The feeding and turning mechanism, the sliding welding mechanism and the vertical stacking mechanism are arranged in parallel in the length direction of the anode plate; according to the automatic stacking and welding all-in-one machine, automatic feeding, overturning and stacking of the anode plates and automatic aligning, welding and stacking of the double anode plates can be achieved, automatic welding machining of the double anode plates is achieved, positioning is accurate, welding quality is stable, production efficiency is high, large-scale automatic production can be achieved, the automatic stacking and welding all-in-one machine is well suitable for automatic machining of long and thin plates, and production efficiency is improved. And the blank in the industry is filled.

The invention relates to the technical field of spot welding machines, and provides an automobile part machining spot welding machine which comprises a mounting rack, a sliding rack and a discharging tray, a plurality of spot welding devices are arranged on one side of the top of the mounting rack, the sliding rack is fixedly connected to the mounting rack, and a movable support is transversely arranged on the top of the sliding rack in a sliding mode; a bottom moving mechanism with a positioning function is arranged at the bottom of the sliding rack, the bottom moving mechanism is used for driving a moving support to transversely move, the moving support transversely moves at the top of the bottom moving mechanism, a rotating shaft is arranged at the bottom of the moving support, and the moving support deviates along the center point of the rotating shaft. By means of the technical scheme, the technical problem that in the welding process of automobile parts in the prior art, due to the fact that welding points between the automobile groove frame and the multiple automobile parts are scattered, the welded parts need to move between spot welding machines repeatedly is solved.

The invention provides an energy storage welding electrode assembly and a control method thereof, and relates to the technical field of electronic packaging. The energy storage welding electrode assembly comprises an upper electrode and a lower electrode assembly. The upper electrode assembly comprises an upper carrying table and an upper electrode embedded in the upper carrying table; the lower electrode assembly comprises a lower downloading platform and a lower electrode embedded in the lower downloading platform; a circular weld-aid hole is formed in one end, far away from the lower loading table, of the lower electrode, a plurality of groups of tube leg limiting holes are sequentially formed in the periphery of the weld-aid hole, and the aperture of the weld-aid hole is smaller than the circumferential diameter of a tube leg of a smallest target device in a to-be-capped round tube shell device set; the circumferential diameter of the pipe leg refers to the diameter of the circumference where the pipe leg is located; each group of pipe leg limiting holes are respectively positioned on different circle centers of the upper surface of the lower electrode; the lower electrode is used for fixing a round tube shell device to be capped, the upper electrode is used for pressing a tube cap and a tube shell of the round tube shell device to be capped, cap sealing is carried out through high-frequency pulse discharge, the suitability of the energy storage welding electrode can be improved, the cost is reduced, and the cap sealing efficiency and the yield are improved.

The invention relates to the technical field of spot welding optimization, in particular to a spot welding optimization method and system based on spacing constraint, and the method comprises the following steps: obtaining welding current flow direction data in the manufacturing of a safety box body, analyzing the distribution condition of current between welding spots, monitoring the surface and surrounding temperatures of the welding spots, and analyzing the heat-conducting property of metal. And identifying the energy diffusion state between the welding spots to obtain the energy distribution characteristics of the welding spots. According to the method, the layout and spacing of the welding spots are adjusted through the heat conduction performance of metal of the safety box body, the stability and consistency of the welding process are further improved, material stress and deformation caused by uneven heating are reduced, temperature changes after welding are analyzed, the welding sequence and path can be optimized, the overheating risk is reduced, and the welding quality is improved. The overall strength and durability of the structure are improved, the welding quality and efficiency are remarkably improved, and the structure is particularly suitable for complex assemblies and advanced materials in the high-standard production environment.

The utility model discloses a locating spot welding device for a connecting rod supporting seat, which is used for locating spot welding of the supporting seat on a connecting rod workpiece and comprises a support seat connected with a welding column, and a horizontally arranged supporting platform is installed on the support seat and used for supporting and locating the connecting rod workpiece. The device is directly mounted on a welding column of the spot welding machine through the bracket seat, so that the mounting is simpler, and the stability is better; by means of the telescopic spring arranged between the connecting piece and the supporting rod, the device can adapt to connecting rod workpieces of different sizes and specifications; through sliding fit of the guide column and the sliding block assembly, the device can adapt to connecting rod workpieces of different lengths and sizes, the spot welding process of the connecting rod workpieces can be more stable through a positioning groove in the sliding block assembly, and the spot welding quality is improved.

The utility model discloses an electrode holder clamping device which comprises a fixing plate and a static arm fixedly connected to the fixing plate, and the end, away from the fixing plate, of the static arm is fixedly connected with a static electrode. A linear driving device is clamped between the fixing plates, the driving end of the linear driving device is connected with an electrode connecting rod, and one end of the electrode connecting rod is fixedly connected with a movable electrode; a guide pin is fixedly connected to the side wall of the electrode connecting rod, a guide groove is formed in the fixing plate, and the guide pin is inserted into the guide groove in a penetrating mode. The linear driving device comprises a connecting flange, a pin shaft is fixedly connected to the side wall of the connecting flange, an arc-shaped groove is formed in the fixing plate, the pin shaft is inserted into the arc-shaped groove in a penetrating mode, and the pin shaft swings along the arc-shaped groove in the welding process so that the moving electrode swings along with deflection of a workpiece to be kept coaxial with the static electrode. According to the utility model, the movable electrode and the static electrode are kept in a coaxial state before welding and during pressurized welding, so that welded workpieces are kept in good contact, and the welding quality is improved.

The application belongs to the technical field of welding equipment, and discloses a manual butt welding machine. The manual butt welding machine comprises a rack, a left electrode clamping device, a right electrode clamping device and a position adjusting mechanism; the left electrode clamping device, the right electrode clamping device and the position adjusting mechanism are arranged on the rack; the position adjusting mechanism comprises a sliding shaft and a hand crank assembly; the sliding shaft is arranged on the rack and slides along the left-right direction; the sliding shaft is connected with the right electrode clamping device; the hand crank assembly is arranged on the rack and rotates; the hand crank assembly is sleeved on the sliding shaft and is threadedly connected with the sliding shaft; the hand crank assembly can drive the sliding shaft to move leftward and rightward by rotating relative to the rack. The sliding shaft and the hand crank assembly form a screw nut pair, which is compact in structure, occupies a small space and is beneficial to reducing the size of the manual butt welding machine, so that the manual butt welding machine is more flexible in movement and use; on the other hand, the right electrode clamping device can be driven to move by rotating the hand crank assembly, which is convenient and labor-saving and is beneficial to reducing the labor intensity of the operator.

The invention relates to the technical field of spot welding devices, and provides a spot welding device for right A column lower inner plate assembly production, which comprises a welding main body provided with two spot welding heads, and the two spot welding heads are symmetrically arranged; the base is arranged on the welding body and provided with a processing channel. The coping block is rotationally arranged in the treatment channel, and after the coping block rotates, the two ends of the coping block are used for coping the two spot welding heads correspondingly; the clamping ring is rotationally arranged in the processing channel and located at one end of the coping block, the inner diameter of the clamping ring is larger than the diameter of the spot welding head, and the clamping ring is used for disassembling the spot welding head. By means of the technical scheme, the problem that in the prior art, the cleaning and grinding function and the replacement and disassembly function of the electrode cap are arranged separately and occupy the space of the device, and consequently the device cannot be simplified and shrunk is solved.

The invention discloses a vehicle body bottom plate assembly resistance welding device, and relates to the technical field of welding devices.The vehicle body bottom plate assembly resistance welding device comprises a workbench, a first welding piece and a second welding piece, the surface of the workbench is rotationally connected with a rotating platform, the first welding piece is placed on the rotating platform, and the second welding piece is placed on the first welding piece; a mounting frame is fixedly mounted on one side of the workbench, and a welding assembly for welding the first welding part and the second welding part is arranged on the mounting frame. According to the resistance welding device for the vehicle body bottom plate assembly, a driving motor is started to drive a first gear and an outer gear ring to rotate, then a rotating platform rotates synchronously, through the design, an electrode piece can conduct all-dimensional welding on a welding piece on the rotating platform more conveniently, and the welding flexibility and uniformity are improved; and by controlling the sliding rod to move and cooperating with the moving seat, the rotating plate and the cleaning plate, automatic cleaning of the outer wall of the electrode part is achieved, and the cleaning efficiency and effect are improved.

The heat-sensitive sensor forming welding equipment comprises an upper pressing welding part and a lower clamping positioning part, and the upper pressing welding part comprises a mounting support, an upper pressing air cylinder, a lifting guide sliding table, an upper electrode base and an upper electrode; the lower clamping and positioning part comprises a positioning mounting seat, a lower electrode seat, a forming base and a movable pressing mechanism, a positioning groove and an isolation groove for placing a pin and a lead wire core are formed in the forming base, and the movable pressing mechanism is connected with a driving cylinder; the driving cylinder drives a left insulation pressing block in the movable pressing mechanism to be close to a right insulation pressing block to press the pin and the lead wire core; a cooling water circulation channel is arranged in the upper electrode seat and the positioning mounting seat and is in control connection with a cooling water circulation device; the upper electrode compresses the sensor pin and the lead wire core and then is electrified for electric resistance welding. According to the invention, resistance welding is carried out after compression molding, so that the sensor pin and the lead wire core are welded in place after compression molding, and reliable welding quality is ensured.

The invention belongs to the field of welding, and particularly relates to an automatic welding machine for automobile parts, which comprises a resistance spot welding gun, an outer attached sleeve is arranged on the outer side of the resistance spot welding gun, the resistance spot welding gun comprises an upper clamping arm and a lower clamping arm which can be opened and closed, and electrode rods are mounted at the ends of the upper clamping arm and the lower clamping arm. An electrode tip capable of being disassembled and assembled is installed at the end of the electrode rod, a replacement wheel capable of horizontally moving and rotating is arranged on the outer side of the outer attached sleeve, and a plurality of disassembling and assembling sleeves used for disassembling and assembling the electrode tip are installed in the replacement wheel. Through the arrangement, the full-automatic disassembly and replacement function of the electrode tip is achieved, and the electrode tip can be replaced in a hollow period after long-term work; and electrode tips with different contact areas can be replaced, so that the spot welding area is changed, the automation level of welding equipment is improved, and a full-automatic high-quality welding process is realized.

The embodiment of the utility model discloses wire harness welding equipment which comprises an electrode copper bar assembly, a liftable upper electrode assembly and a welding positioning mechanism. The welding positioning mechanism is further provided with a lower electrode assembly. The electrode copper bar assembly supplies power to the liftable upper electrode assembly and the lower electrode assembly; the welding positioning mechanism is provided with two positioning terminals capable of moving relatively, the lifting upper electrode assembly and the lifting lower electrode assembly are each provided with a molybdenum electrode which is detachably connected, and the molybdenum electrodes and the positioning terminals jointly form a positioning welding notch. The upper electrode and the lower electrode are detachably connected with the fixing plate through the molybdenum electrode, and the molybdenum electrode has the advantages of being high in melting point, high in hardness and resistant to adhesion, is suitable for large-current resistance welding and is convenient and fast to replace. According to the positioning assembly, the left positioning assembly and the right positioning assembly which are symmetrically arranged are adopted for welding a welding piece, a large air cylinder is replaced by a small air cylinder, reliable positioning and clamping of a large-size workpiece can be guaranteed, and the action is more stable and reliable.

The present invention proposes a mesh making machine, including a resistance welding machine and a base, the base is provided with a lateral sliding structure, and also includes a control system and a welding head, the welding head includes a welding frame, a positive electrode conductive structure, and a negative electrode conductive structure, and the welding frame is provided with a vertical pressure adjustment self-locking structure. The present invention adopts the principle of resistance welding, controls the operation of the servo system through the control system, and then controls the movement of the relevant mechanical structure to ensure the welding trajectory of the two welding electrodes, and at the same time controls the power supply of the resistance welding machine to realize the spiral winding welding of the wedge wire mesh, and finally obtains the finished wedge wire mesh, which improves the screen mesh gap size accuracy and welding strength manufactured by the mesh making machine, has high welding accuracy, high finished product quality, reasonable mechanical structure design layout, high stability, and low equipment cost.

A spot welding gun and a system and method for autonomously calibrating welding quality using the same, the system including: a spot welding gun configured to secure a welding target during a welding process, accurately measure a welding indentation depth, and perform autonomous welding quality calibration in response to an applied control signal; the welding robot is provided with a spot welding gun and is configured to move to a specified welding spot position; the welding controller is configured to control the welding current and the welding time of the point welding gun, and the welding quality is checked in real time by monitoring the welding indentation depth and the dynamic resistance in the welding process; and a welding quality manager configured to receive the welding quality inspection result from the welding controller, send a welding condition feedback change, and control autonomous welding quality calibration.