43results about How to "Precision welding" patented technology

The utility model provides an auxiliary structure that inverter sheet metal is used, relates to sheet metal processing technical field, include: bottom plate, the left and right sides of bottom plate top all weld a block adjusting support board, the left and right sides of bottom plate top still weld two groups of four guide posts, four guide posts outside all install a spring, still slide and install a block lower pressure plate between the two groups of guide posts of bottom plate top, the left and right sides of the top of two block adjusting support boards are all through thread screw joint has a locating screw, the left and right sides of the front of side support board also weld two groups of four guide posts, the guide post outside slide and install a block side pressure plate of side support board front, the left and right sides of side support board front still rotate and install two screw rods. This structure can clamp and fix when welding sheet metal part, will not appear the condition of activity in the welding process, guarantees welding accuracy.

The utility model discloses a kind of welding piece clamping devices, including welding base, the bottom of welding base is distributed with at least three supporting legs, lifting assembly is provided on supporting leg, the output end of lifting assembly is connected with the bottom of welding base, at least one first chuck assembly, second chuck assembly and third chuck assembly are distributed and arranged on welding base, workpiece clamping area is formed between first chuck assembly, second chuck assembly and third chuck assembly, first chuck assembly, second chuck assembly and third chuck assembly are used to clamp positioning for different workpieces;Stable welding base using supporting leg, and its height is adjusted by lifting assembly, to adapt to welding equipment gap;When welding, welding base moves to welding equipment to facilitate welding;When unloading, welding base is lowered away from welding equipment, convenient to take piece;Work staff can adjust material taking space, reduce material taking difficulty;Workpiece is fixed using first chuck assembly, second chuck assembly and third chuck assembly, accurate welding is realized.

The application discloses a kind of vertical assembly construction methods of steel bifurcated pipe, comprising the following steps: one, the tile of steel bifurcated pipe and crescent rib plate are made;Two, pre-assembled platform is set and steel bifurcated pipe lofting is carried out;Three, pre-assembled steel bifurcated pipe;Four, steel bifurcated pipe inner support is set;Five, steel bifurcated pipe disassembly;Six, steel bifurcated pipe transportation after disassembly;Seven, steel bifurcated pipe is assembled again.The application is welded positioning block on the tile of steel bifurcated pipe by pre-assembled segment of steel bifurcated pipe, and vertical assembly method is used to assemble steel bifurcated pipe, so that steel bifurcated pipe assembly difficulty is reduced, crescent rib plate and each tile assembly positioning, adjustment is simple;Tile assembly process is single, and deformation is small, and assembly quality is higher, after assembly, high-difficulty welding such as a lot of vertical welding and overhead welding is reduced, effectively improve the steel bifurcated pipe weld quality and efficiency;Positioning is accurate and stable using positioning block, greatly reduce the bifurcated pipe assembly difficulty again.

This utility model discloses a flange welding positioner device, belonging to the technical field of flange welding auxiliary equipment, used for rapid and precise alignment welding of pipes and flanges. The device includes a connecting rod and baffles fixed at both ends. The inner diameter of the baffles matches the outer diameter of the pipe to be welded, and the two baffles are kept parallel and positioned by the connecting rod. Multiple sets of through holes are opened on the baffles, corresponding to the bolt holes of the flange. In use, the positioner is fitted onto the pipe, leaving a flange installation section. The flange is then bolted through the through holes and securely connected to the baffles, eliminating radial sliding and circumferential rotation of the flange during welding. After positioning, spot welding can be performed directly. The device can be reused after removal. This utility model achieves automatic coaxial positioning of the flange and pipe through a mechanical limiting structure, solving the problem of manual alignment deviation; it has the advantages of simple structure and reusability.

This utility model discloses a tabletop battery welding machine, including a main unit with a worktable on which welding fixtures are provided for fixing the welding rod and the battery motherboard; a laser welding system mounted on a lifting and adjusting mechanism fixedly mounted on the worktable; and a cooling system for cooling the laser welding system. This utility model significantly improves welding quality, reduces welding defects, and effectively lowers the failure rate by optimizing laser welding technology, thereby reducing battery scrapping and repair costs. This technology enhances welding efficiency, increases production speed, and improves process stability through high-voltage power supply control, making operation simpler and more widely applicable to various workpieces. It demonstrates significant progress and practical application value in the welding field, providing the industry with a high-quality, high-efficiency welding solution.

This invention provides an automatic copper busbar welding device for busbar trunking production, relating to the field of busbar trunking welding. The automatic copper busbar welding device for busbar trunking production includes two docking components. Each docking component includes a YZ axis assembly, a flipping assembly, a clamping platform, a drive assembly, a fixing assembly, and a preheating assembly. The flipping assembly is mounted on the YZ axis assembly and can automatically move along the Y and Z axes based on the YZ axis assembly. The clamping platform is mounted on the flipping assembly and can switch between horizontal and vertical 90-degree angles. The drive assembly, fixing assembly, and preheating assembly are all mounted on the clamping platform. This automatic copper busbar welding device for busbar trunking production, by setting up the drive assembly and fixing assembly, can clamp copper busbars specifically for busbar trunking. Even with thin copper busbars, drive transmission can be achieved. It is applicable to both long and short copper busbars. The fixing assembly can clamp the copper busbars, facilitating precise welding later.

The application relates to the technical field of automobile parts, and particularly discloses an automobile front door hinge reinforcing plate assembly and a vehicle; a first hinge reinforcing section is arranged on a first hinge sheet metal part, the first hinge reinforcing section is provided with a first positioning sunken groove, a first protruding part and a second protruding part, meanwhile, a second positioning sunken groove, a third protruding part and a fourth protruding part are arranged on the surface of the first reinforcing sheet metal part, the first reinforcing sheet metal part is completely bonded and welded with the first hinge reinforcing section, the welding is more firm, meanwhile, the first reinforcing sheet metal part is convenient to accurately weld during production, a second hinge reinforcing section is arranged on a second hinge sheet metal part, the second hinge reinforcing section is bonded and welded with a second reinforcing sheet metal part, and the side end surface of the second reinforcing sheet metal part abuts against the side end surface of the sunken groove; in this way, on the basis of the original sheet metal part structure and under the condition of lower manufacturing cost, the problem that the front door of an armored escort vehicle is prone to falling off due to the special modification and weight increase of the door is solved.

The utility model provides a kind of full-automatic mesh gantry weld, including rack, welding device, discharging mould frame, pushing device, feeding mould frame, mould plate and material moving device, first feeding way, second feeding way and door type frame are equipped on rack, welding device is vertically equipped on door type frame, mould plate is pushed to feeding mould frame by pushing device, material moving device is used to lift and move mould plate in feeding mould frame and place back to discharging mould frame.Through feeding mould frame moves to welding device and carries out welding processing to mesh placed in mould plate, after mesh welding is completed, through the material circulation function of material moving device, mould plate is lifted and moves and places back to discharging mould frame and carries out material taking and again discharging, realizes the full-automatic flow of mould plate between discharging mould frame and feeding mould frame, completely gets rid of the operation mode of traditional manual sequence welding, significantly improves the automation degree and production continuity of welding process, effectively improves production efficiency.

The application relates to a dispensing and welding device, equipment and method of a glass fiber filter, the device comprising a rotating mechanism for rotating around its axis to switch the glass fiber product in a feeding station, a dispensing station, a lamination positioning station and a welding station in sequence, a dispensing mechanism is arranged at the relative position of the dispensing station, the end face of one end of the glass fiber in the dispensing station is dispensed when switched to the dispensing station, the lamination positioning station is used for laminating the end faces of the two ends of the glass fiber through the web laminating mechanism when switched to the lamination positioning station, and the positioning of the packaging material is completed, a welding mechanism is arranged at the relative position of the welding station to simultaneously heat the two end faces of the packaging material to complete welding. Through the switching among the feeding station, the dispensing station, the lamination positioning station and the welding station in sequence, the automatic dispensing and precise lamination process of the end face of the glass fiber are realized.

This utility model discloses a welding positioning device for positioning a template to be welded. The angle of the projection of the welding end of the template along the Z direction onto a plane perpendicular to the Z direction is degrees. The device comprises: two first positioning supports arranged perpendicularly; and two second positioning supports arranged perpendicularly and separated from the first supports. Each second positioning support is parallel to a corresponding first positioning support, forming a placement space for the template to be welded between the second and first positioning supports, thereby enabling welding of the two templates at an included angle of degrees. This welding positioning device can limit the welding of two templates, ensuring welding accuracy.

The utility model discloses a tin soldering device for sensor assembly, which comprises a four-axis mechanical arm, a lifting assembly and a guide pipe, an angle adjusting assembly is mounted on the four-axis mechanical arm, the angle adjusting assembly is connected with a lifter, a welding gun is mounted at the lower end of the lifter, the lifting assembly is connected with the lifter, and the guide pipe is connected with the lifting assembly. An exhaust pipe is mounted on the lifting assembly, the guide pipe is connected with the lifting assembly, and a tin bar is inserted into the guide pipe; the four-axis mechanical arm can flexibly control the welding gun to move, the lifter finely adjusts the height of the welding gun, precise welding is achieved, the problems that production efficiency is low and the reject ratio of sensors is high are solved, the produced sensors are better in appearance and quality consistency, the exhaust pipe extracts smoke generated in the tin soldering process, the smoke is prevented from diffusing into the environment, air is kept fresh, and the production efficiency is improved. The operation comfort is improved, and the risk of soldering tin smoke is remarkably reduced.

The utility model relates to a kind of welding tool, belong to the technical field of manifold welding processing, specifically disclose a kind of air conditioner manifold high-frequency welding tool, including pedestal, in the pedestal welding platform edge of one end of extension is fixed with the clamping mechanism for positioning main pipeline, clamping mechanism includes the clamping part of U type placement slot being opened and the clamping piece for being used to the main pipeline fixed in U type placement slot, in clamping mechanism top is equipped with the inductive coil of high-frequency welding machine;Positioning mechanism for limiting the axial placement position of main pipeline and branch pipe positioning tool for limiting the free end position of branch pipe are further provided on pedestal.The utility model structure is simple, open type clamping mechanism can be quickly positioned to pipeline, suitable for welding main pipeline longer or main pipeline one end is non-linear tubular manifold.

The utility model belongs to soldering machine technical field especially relates to an intelligent automatic soldering machine, through the recessed groove design of clamping rod, ensure two material close adhesion, positioning assembly penetrates the material's middle end through -hole simultaneously, guarantee always aligning when welding, avoid misplacement or false welding, ensure the evenness of welding spot. Clamping motor automatic adjustment clamping degree, rotating assembly takes material rotation at uniform speed, soldering mechanism precision welding, whole process does not need manual intervention, improves production efficiency. In the welding process, the translation component can be real-time fine adjustment position, offset caused by thermal expansion and cold shrinkage of material, ensure the evenness of welding spot.

The application relates to the technical field of welding tooling, and discloses an automatic welding tooling for steel structure processing of a steel box truss arch bridge, which comprises an arch bridge steel frame, a support, a positioning assembly used for centering welding positioning of the arch bridge steel frame, a driving piece, a top-positioning assembly used for transverse positioning of the arch bridge steel frame, and a locking assembly. The automatic welding tooling for steel structure processing of the steel box truss arch bridge can realize centering calibration of the steel frame through the positioning assembly, thereby providing a stable position for welding; meanwhile, the top-positioning assembly can realize transverse pushing positioning of the steel frame, guarantee the centering position, realize transverse position calibration, and realize automatic positioning through the whole process and centering calibration synchronous linkage, so that the position stability of manual handheld welding guns or robot welding is facilitated, the inconvenience of positioning and welding of the steel frame during welding is solved, and the overall welding efficiency is improved.

The application provides a welding tool structure, and relates to the technical field of welding tool structures, which comprises a fixed template, a fixed base, a first positioning assembly, a second positioning assembly and a third positioning assembly; a side plate is placed on the fixed base; the fixed template is arranged on one side of the fixed base, the side surface of the fixed template is arranged as a positioning surface, and the third positioning assembly can make the end surface of the side plate abut against the positioning surface; the upper end surface of the fixed template is a horizontal surface and is used for placing an angle steel; the first positioning assembly is arranged on the fixed template and is used for fixing the angle steel; a first through groove for placing a profile is formed in the fixed template, and when the profile is placed in the first through groove, the profile is in a horizontal state; the second positioning assembly is arranged on the fixed template and is used for abutting against the profile so as to fix the profile. The relative position relationship and dimensional accuracy among the angle steel, the side plate and the profile are kept accurate, and the welding piece structure can be accurately positioned, clamped and welded.

This application relates to the field of galvanized welded pipe processing technology, and discloses a multi-angle positioning welding device for galvanized welded pipes, including a flash butt welding machine, a support arm, and a clamp body. The support arm and clamp body are disposed on the top of the flash butt welding machine. Positioning mechanisms are disposed on both sides of the flash butt welding machine, and an adjustment mechanism is disposed on the top of the flash butt welding machine. The positioning mechanism includes a support plate, a support seat, a support rod, a fixing plate, a hydraulic cylinder, a connecting rod, and clamping plates. The support plate is welded to both sides of the flash butt welding machine, and the support seat is slidably connected to the top of the support plate. With this multi-angle positioning welding device for galvanized welded pipes, when the two sets of clamping plates move inward, the clamping plates can clamp the galvanized welded pipe. The clamping pieces at the bottom of the clamp body and the support arm hold the top of the galvanized welded pipe, allowing the galvanized welded pipe to be clamped at multiple angles, preventing the galvanized welded pipe from tilting during welding and improving the welding accuracy of the galvanized welded pipe.

The embodiment of the application provides an automatic welding method and system of a steel structure and a storage medium, the method comprising: obtaining a preset three-dimensional model of a target steel structure; generating a current three-dimensional model after scanning a current steel structure; determining a welding atlas according to the preset three-dimensional model, the current three-dimensional model and a structure piece to be welded; obtaining a target welding scheme after iteratively optimizing a welding scheme corresponding to the welding atlas according to preset decision variables and optimization objectives; and obtaining the target steel structure after welding the structure piece to be welded according to the target welding scheme. The welding atlas is determined by comparing the current three-dimensional model with the preset three-dimensional model, and the target welding scheme is obtained by optimizing the decision variables and the optimization objectives, so that the steel structure welding robot can accurately weld the structure piece to be welded, the welding quality is good, and the welding efficiency is high.

The utility model discloses a welding table for a heat shield. The welding table comprises a welding table body, the welding table further comprises a pressing block arranged above the welding table body, a rotating rod is rotationally connected to one side of the lower end of the pressing block, a transverse connecting block is in lap joint with the middle of the bottom face of the pressing block, a butt-joint plate is fixedly connected to the bottom of the transverse connecting block, and a longitudinal connecting block is fixedly connected to the lower end of one side of the butt-joint plate. A clamping block is arranged on one side of the longitudinal connecting block; a supporting seat is fixedly connected to one side of the top face of the welding table body, a guide block is slidably connected to the middle of the supporting seat, a supporting spring is arranged in the middle of the upper end of the guide block, and a welding frame is fixedly connected to the top end of the guide block. And through shrinkage of the pressing block towards one side of the supporting frame, the effect of precise butt joint of the heat insulation cover is promoted, and the welding precision of the heat insulation cover is further improved.

The utility model belongs to the field of welding technology, concretely relates to an auxiliary device for laser welding, including lifting slide, support and fixed assembly, the fixed assembly sets up on the support, the support sets up on the lifting slide, the utility model has the advantages of reducing the dependence on artificial experience, improving the stability and yield of laser welding.

The present application relates to a kind of welding devices, especially a kind of welding device integrated on welding tool clamp.The technical problem is to provide a kind of welding device integrated on welding tool clamp, which can align welding torch and the end of cylindrical workpiece, and make welding more accurate.A kind of welding device integrated on welding tool clamp, including N-shaped mounting plate, L-shaped mounting plate, mounting bracket, welding torch and the like;Two L-shaped mounting plates are fixed in the inside of the N-shaped mounting plate, two L-shaped mounting plates are symmetrically arranged, the mounting bracket is arranged on clamping device, the sliding slot is opened on the mounting bracket, and the welding torch is slidably connected on the sliding slot of mounting bracket.Both of the two cylindrical workpieces are positioned by the plate, and the end of one of the two cylindrical workpieces is aligned with the welding torch, when the ends of the two cylindrical workpieces are aligned, the welding torch is simultaneously aligned with the ends of the two cylindrical workpieces, so that welding can be more accurately carried out, so that the welding quality is better.

The utility model is applicable to the technical field of welding auxiliary work, and discloses a turnover frame for welding a goods shelf hanging piece and a cross beam, which comprises a turnover frame, two support frames arranged oppositely, a longitudinal connecting rod, an air cylinder, a first clamping plate, a second clamping plate and a positioning component. According to the turnover frame, the longitudinal connecting rods capable of sliding are arranged on the two transverse connecting rods of the turnover frame, so that goods shelf cross beams with different lengths can be placed on the longitudinal connecting rods, and the positioning assemblies capable of sliding along the transverse connecting rods are arranged on the transverse connecting rods; through the arrangement of the positioning assembly, the goods shelf hanging pieces can abut against the two ends of the cross beams with different lengths while being positioned by the positioning assembly, it is ensured that the goods shelf hanging pieces can be accurately welded to the correct positions of the cross beams, and therefore the universality of the turnover frame is enhanced through the cooperative use of the movable longitudinal connecting rods and the positioning assembly, and the turnover frame is convenient to use. And an enterprise does not need to purchase or design various types of overturning frames for welding.

The utility model discloses an automatic tank girth welding machine which comprises a working table, a welding station is arranged in the middle of the top end of the working table, and a first centering assembly and a second centering assembly are installed at the two ends of the welding station in the length direction of the working table respectively. The first centering assembly and the second centering assembly are in sliding connection with the workbench. The transplanting assembly and the transplanting mechanical arm are arranged for cooperative operation, automatic feeding and discharging of the tank body are achieved, the welding assembly, the first centering assembly and the second centering assembly are installed on the workbench and used for achieving automatic positioning of the tank body and driving and controlling the tank body to rotate at a constant speed for girth welding, and the welding efficiency is improved. The position of the welding assembly can be flexibly adjusted to ensure accurate welding, through cooperation of all the assemblies, the automation degree of the tank welding process is improved, the welding efficiency and the welding quality are improved, and the automatic production requirement of the tank manufacturing industry is met.

The utility model discloses corrugated web H-shaped steel assembling and welding equipment. The corrugated web H-shaped steel assembling and welding equipment comprises a base, a web assembling and welding mechanism, a wing plate assembling and welding mechanism and a welding robot. The base comprises a plurality of transverse guide rails; the web assembling and welding mechanism is connected to the middle of the base and comprises a web frame and a chain transmission web conveying mechanism. The wing plate assembling and welding mechanism comprises a movable support and a turnover frame body which can transversely move and turn over, and the turnover frame body is provided with a conveying roller, an electrode plate, a first positioning roller and a second positioning roller, wherein the conveying roller and the electrode plate are adjustable in distance, and the first positioning roller and the second positioning roller are used for fixing wing plates; the welding robot is used for welding operation. According to the utility model, the accuracy and the automation degree of corrugated web H-shaped steel assembly are improved, the welding quality is ensured, the cost is reduced, and the requirement on an installation site is low.

The welding structure of the PCB hard board and the FPC soft board provided by the utility model comprises the PCB hard board and the FPC soft board, one end of the FPC soft board is transversely provided with a plurality of welding through holes with the same structure at equal intervals, the welding through holes penetrate through the upper end and the lower end of the FPC soft board, and the welding through holes are of an oval structure. A plurality of bonding pads of the same structure are transversely arranged on the surface of the side, facing the FPC flexible circuit board, of the PCB hard board at equal intervals and correspond to the welding through holes in position, solder paste layers are preset on the bonding pads to be welded and fixed to the welding through holes through the pulse thermocompression welding technology, and the solder paste layers penetrate through the welding through holes. According to the welding structure of the PCB hard board and the FPC soft board provided by the utility model, soldering tin connection is carried out by utilizing the welding through holes and the bonding pads, gaps between the through holes and the bonding pads can be fully filled, full and bright welding spots are formed, the welding spots can be visually seen from the outer surface of the circuit board, all the bonding pads are ensured to realize accurate welding, and the risk of pseudo soldering is reduced.

The utility model discloses a perforating plug welding fixing workbench, relates to the field of welding equipment, and aims to solve the problems of poor automation degree and poor positioning precision due to poor compatibility of a conventional perforating plug welding device. The perforating plug welding fixing workbench comprises a rack, a longitudinal grabbing assembly is arranged in the rack, and a three-coordinate motion platform is connected below the longitudinal grabbing assembly; a platen is arranged above the longitudinal grabbing assembly and fixedly connected with the rack, a feeding groove for the grabbing mechanism to discharge materials is formed in the platen, a pressing rod and an upper ejector rod are symmetrically arranged on the two sides of the feeding groove, a driving assembly is installed between the pressing rod and the platen and drives the pressing rod to apply pressing force to the anchoring plate, and a sliding table is arranged between the upper ejector rod and the platen. The steel bar grabbing device has the beneficial effects that steel bars of different specifications can be grabbed through cooperation of the longitudinal grabbing assembly and the three-coordinate workbench, the steel bars are precisely conveyed to the positions below corresponding welding holes, the compatibility and positioning precision of the device are improved, and manual intervention is reduced.

This invention relates to the field of welding equipment technology, and discloses a chip welding device for sensor processing. The device includes a worktable, with lifting rings connected to the four corners of the top of the worktable, guide rods connected to the left and right sides of the top of the worktable, a T-shaped rail connected to the middle section of the top of the worktable, sliding sleeve assemblies fitted around the guide rods, slider assemblies slidably connected to the left and right ends of the T-shaped rail, a positioning platform installed between the sliding sleeve assembly and the slider assembly, a docking platform connected to the rear top of the worktable, welding seats connected to the left and right sides of the top of the docking platform, and a PLC controller connected to the outer wall of the worktable. This invention has a reasonable structural design, enabling simultaneous welding operations and unloading operations, ensuring welding precision and making unloading more convenient and faster.

This application provides a battery cell positioning device and a battery module, relating to the field of new energy battery technology. The battery cell positioning device includes at least one positioning unit; the positioning unit is configured to limit the position of the battery cell; the positioning unit includes a limiting structure and a guiding structure; the guiding structure is connected to the limiting structure; the limiting structure has a receiving structure that matches the battery cell's terminal post; the receiving structure is configured to receive the battery cell's terminal post; the guiding structure has an opening larger than the opening of the limiting structure in the direction in which the battery cell's terminal post enters the limiting structure. This battery cell positioning device effectively limits the position of the battery cell, ensuring that the battery cell maintains stable and accurate positioning during production, assembly, or testing, avoiding quality problems caused by possible positional deviations of the battery cell. The opening of the guiding structure in the positioning unit is larger than the opening of the limiting structure, allowing the battery cell's terminal post to smoothly enter the limiting structure, which has a receiving structure matching the battery cell's terminal post, achieving precise positioning of the battery cell.

This invention discloses an adjustable flange ring welding device for the end face of a tank-type circuit breaker housing, relating to the field of welding technology. The adjustable flange ring welding device for the end face of a tank-type circuit breaker housing includes a machine body, a welding mechanism, an adjusting mechanism, and a flange ring feeding mechanism. The adjusting mechanism includes a lifting worktable and a rotating table. A support is fixedly connected to the top of the rotating table, and a conical roller is rotatably mounted on the top of the support. A servo motor is fixedly mounted on the surface of the support. A linear groove is formed on the conical surface of the outer side of the conical roller. The flange ring feeding mechanism includes a mover and a ring frame. A cylinder is rotatably mounted inside the ring frame, and a telescopic device is installed on the outer side of the cylinder. A clamping head is fixedly connected to the telescopic end of the telescopic device, and a groove is formed at the corner of the inner side of the clamping head. A pressing assembly is installed on the top of the ring frame, achieving the purpose of adjustment, facilitating fine-tuning of the tank body components, and ensuring stable, safe, and reliable welding.

The utility model discloses an automobile wire harness terminal ultrasonic welding device relates to the field of automobile wire harness processing, and it is including: ultrasonic welding machine body, the one side fixed connection of ultrasonic welding machine body has electric telescopic handle, and the one end fixed connection of electric telescopic handle has the ultrasonic welding head of ultrasonic welding machine body's sliding limit, and the one side of ultrasonic welding head is provided with welding pressure piece, and welding pressure piece is fixedly connected in the one side of ultrasonic welding machine body, and the one side rotationally connected of ultrasonic welding machine body has wire slot wheel, and the one side of wire slot wheel is annular and has a plurality of discharge grooves in equal interval structure, and the discharge groove is elastically connected with the pressing plate in the discharge groove through spring piece, and the one side of wire slot wheel is provided with driving motor and material limiting plate. The automobile wire harness terminal ultrasonic welding device, through driving motor drives wire slot wheel to rotate, and the discharge groove on wire slot wheel sends terminal copper sheet to welding position in turn, and material limiting plate guarantees that only one terminal copper sheet enters the welding area each time, realizes automatic feeding.