26results about "Roller electrodes" patented technology

The present application relates to the technical field of seam welder, and discloses a multi-layer metal bellows matched end seam welding tool.The present application comprises: a machine body internally provided with a driving device and a transformer, an upper welding wheel mechanism and a lower welding wheel mechanism are arranged on the machine body support table, an upper extension guide column capable of axial extension is arranged on the upper welding wheel mechanism, and an upper additional electrode wheel is arranged at one end of the upper extension guide column; a lower extension guide column capable of axial extension is arranged on the lower welding wheel mechanism, and a lower additional electrode wheel is arranged at one end of the lower extension guide column; the tool further comprises a synchronous driving mechanism for driving the upper extension guide column and the lower extension guide column to synchronously extend and retract.The synchronous design of the upper additional electrode wheel and the lower additional electrode wheel is matched with the synchronous driving mechanism to realize the synchronous extension and positioning of the two end electrode wheels, and the seam welding work of the two ends of the metal bellows can be completed at one time, thereby improving the processing efficiency.

System and method for indirect resistance welding of a sealing plate to an anchor plate The present invention relates to a system (S1) for indirect resistance welding of a sealing plate (1) of a tank intended to contain liquefied gas, on an anchor plate (22) arranged partly under the sealing plate (1), comprising: - a pair of electrodes and a current generator capable of being connected to the electrodes (41, 42) - a support (5) capable of holding the electrodes relative to each other, - means for positioning the support (5) against the sealing plate (1), capable of positioning a first (41) of the electrodes above the sealing plate (1) and a second (42) of the electrodes above the free portion of the anchor plate (22), and - at least one actuator (9) capable of pressing the first electrode (41) against the sealing plate (1) and the second electrode (42) on the free portion of the anchor plate (22). (Figure 3)

The invention relates to the technical field of welding machining, and particularly discloses a metal welding corrugated pipe welding machining device which comprises a main frame, a fixing support is fixedly connected to the side face of the inner wall of the main frame, a driving device is fixedly connected to the end, away from the main frame, of the fixing support, and a supporting device is slidably connected to the side face of the driving device. The side face of the driving device is fixedly connected with a cleaning device, the side, away from the cleaning device, of the driving device communicates with a filtering device, the top of the inner wall of the main frame is fixedly connected with the fixed end of an electric sliding table, and the movable end of the electric sliding table is fixedly connected with a welding device. The welding device is arranged at the position above the supporting device, and the purpose of preventing thermal deformation is achieved through the metal welding corrugated pipe welding machining device.

The invention relates to an automatic air-filled cooling rolling welding machine, which has a base, a first cage door and a second cage door arranged on the base, and the first cage door and the second cage door are provided with through holes; the second cage door is provided with a welding assembly, the welding assembly includes a slewing bearing, a web plate, a rolling welding gun, and a copper table, the rolling welding gun includes a copper bar, a welding roller and a radiator, the radiator is coaxially arranged with the welding roller and fixedly connected, the radiator is located between the web plate and the welding roller, a heat dissipation channel for injecting coolant is provided in the radiator, the copper bar is fixed on the welding roller, the welding roller is also provided with an airway for the welding roller, the web plate is provided with a liquid storage tank and an air storage tank, the liquid storage tank injects coolant into the heat dissipation channel through a water pump, the air storage tank passes gas into the airway through an air pump, and the welding roller cooperates with the copper bar and the copper table to weld the steel skeleton. The invention can realize the automatic air filling and cooling of the welding roller, which is convenient and efficient.

The present invention relates to a method and apparatus for mash welding in steel making, wherein a step of brushing the overlapping areas of sheet metal surfaces (102, 108) before the mash seam welding process of the pair of steel sheets (100, 106) is provided in order to give the surfaces (102, 108) of the overlapping areas increased surface roughness. The apparatus as well is using such application of brushing and mash seam welding. This ultimately results in steel products with greater weld strength, especially for high-strength steels.

The invention relates to a system (S1) for indirect resistance welding of a sealing plate (1) of a tank configured to contain liquefied gas to an anchoring plate (22) arranged partially below the sealing plate (1), comprising:-a pair of electrodes and a current generator adapted to be connected to said electrodes (41, 42); -supports (5) capable of holding the electrodes relative to each other; -positioning means for positioning the support (5) against the sealing plate (1), capable of positioning a first of the electrodes (41) above the sealing plate (1) and a second of the electrodes (42) above a free portion of the anchoring plate (22); and-at least one actuator (9) capable of pressing the first electrode (41) against the sealing plate (1) and the second electrode (42) against the free portion of the anchor plate (22).

The aim of the invention is to improve a method for joining a multilayer component to another component such that the joining method and the preparation of the joint locations can be carried out as quickly as possible and inexpensively using an automatic method. This is achieved in that an intermediate layer (14) of the multilayer component is displaced in the region of the joint location (15) by means of a heating process and by exerting a compressive force (16), and the two outer components (10, 11) of the multilayer component are adhered together by applying an electric voltage (17).

The invention discloses a weld seam roll welding system for metal plate machining, and relates to the field of manufacturing of metal cutting and welding equipment such as plasma arc welding machines, the weld seam roll welding system comprises a base and roller electrodes symmetrically and rotatably arranged on the base, and further comprises a working ring and a mounting ring, the working ring and the mounting ring are respectively clamped at the two axial ends of the roller electrode, so that the working ring sleeves the outer side of the roller electrode, and the working ring and the mounting ring are fixed in an inserting manner. According to the weld seam roll welding system for metal plate machining, the working ring and the mounting ring are connected in an inserted mode so as to be clamped on the roller electrode, and the working ring is arranged on the outer side of the roller electrode in a sleeving mode so that the pressing ring part can be located on the radial outer side of the roller electrode to form a working face; and when the working surface on the pressing ring part is damaged and generates a pit during long-time welding operation, the working ring can be quickly replaced and maintained by disassembling the working ring and the mounting ring, so that the problem of low maintenance efficiency caused by the fact that the roller electrode of the traditional roll welding equipment needs to be integrally disassembled is solved.

The invention provides a resistance roll welding device and application thereof, the core of the resistance roll welding device is that a split type design roll welding wheel assembly is adopted, the upper rim of an upper roll welding wheel is provided with unique pressing sheets arranged in a piano key mode, and the pressing sheets and adjacent grooves jointly form a concave-convex structure capable of rotating along with the upper roll welding wheel. The concave-convex structure and the fixedly-arranged spring ejector pin assembly have a synergistic effect, in the rotating process of the upper roll welding wheel, the end of the ejector pin is always kept in contact with the concave-convex structure, an electric contact at the tail of the ejector pin can be driven to make contact with or be separated from an electrifying terminal through axial displacement, and therefore precise programmed control over welding current is achieved. When the resistance roll welding device is applied to stitch welding of the multi-layer extremely-narrow-spacing thin plate girth, the device can effectively stretch into a narrow gap, accurate pressure application to an independent area is achieved, the technical bottleneck of welding of the multi-layer extremely-narrow-spacing thin plate girth is thoroughly broken through, and the welding efficiency is improved. And the welding quality, the process precision, the production efficiency and the reliability are remarkably improved.

The invention relates to an assembly, comprising a welding arm (2) for a resistance seam welding machine and a roller head (1), which is fastened to the welding arm and which has a stator (3) and an electrode roller (4), the electrode roller being rotatably mounted on the stator (3), wherein fastening extensions (5) of the stator (3) protrude beyond the electrode roller (4) on both sides of the electrode roller (4). The welding arm (2) has a receiving opening (6) for the roller head (1), the receiving opening being formed between two opposite boundary walls (7), which have fastening receiving openings (8) for the fastening extensions (5). The roller head (1) is disposed in the receiving opening (6) such that part of the circumferential boundary of the electrode roller (4) protrudes from the receiving opening (6) and such that the fastening extensions (5) are disposed in the fastening receiving openings (8). The roller head (1) is fastened to the welding arm (2) in that a flat contact surface (9) formed on each fastening extension (5) is pressed against an associated flat contact surface (10, 19) within the boundaries of the fastening receiving opening (8) in question, the contact surface (9) of each fastening extension (5) being pressed against the associated contact surface (10, 19) by means of a clamping piece (11) received in the fastening receiving in the fastening receiving opening (8) in question. It has been found that, by means of the design according to the invention, assembly errors can be avoided and good and reliable sealing and current transfer can be achieved.

To provide a versatile welding electrode that enables multiple resistance weld joints and long seam lengths between metal sheets. A welding electrode for resistance welding is comprised of a welding tool at least partially made of a first metal. The welding tool has a contact surface 1 that comes into contact with a workpiece 9 to be welded. The contact surface 1 is made of diamond doped with boron and / or phosphorus.

System and method for indirect resistance welding of a sealing plate to an anchor plate. The present invention relates to an indirect resistance welding system (S1) of a sealing plate (1) of a tank intended to contain liquefied gas, to an anchor plate (22) disposed partially under the sealing plate (1), comprising: - a pair of electrodes and a current generator adapted to be connected to the electrodes (41, 42); - a support (5) adapted to hold the electrodes relative to each other; - means for positioning the support (5) against the sealing plate (1), adapted to position a first electrode (41) above the sealing plate (1) and a second electrode (42) above the free portion of the anchor plate (22); and - at least one actuator (9) adapted to press the first electrode (41) against the sealing plate (1) and the second electrode (42) on the free portion of the anchoring plate (22). (Figure 3)

The invention relates to the technical field of welding devices, and provides a welding machine device with an edge punching function, which comprises an equipment rack, a cleaning rack, a clearing assembly, a position adjusting rack, a welding assembly, an edge punching assembly and a position adjusting assembly, and is characterized in that a feeding rack is fixedly mounted at the input end of the equipment rack, and a discharging rack is fixedly mounted at the output end of the equipment rack; the cleaning machine frame is fixedly installed on the feeding machine frame, the clearing assembly is installed on the cleaning machine frame, the two position adjusting machine frames are vertically symmetrically and fixedly installed in the equipment machine frame, the welding assemblies are installed on the two position adjusting machine frames, the two welding assemblies are symmetrically arranged, the edge punching assembly is installed on the welding assemblies, and the position adjusting assemblies are installed on the equipment machine frame. By means of the technical scheme, the problems that in the welding process in the prior art, due to the fact that lap joint between the two sections of strip steel is not tidy, the welding contact area is not uniform, the welding strength is reduced, and welding of the two sections of strip steel is not firm are solved.

The present invention relates to an electrode mechanism and a seam welder. The electrode mechanism includes a main shaft assembly, an electrode unit, a current conduction assembly, a connecting rod assembly, a first driving assembly, and a second driving assembly. The current conduction assembly is used to conduct current to the electrode unit. The electrode unit can rotate around the axial direction of the main shaft assembly following the main shaft assembly under the drive of the second driving assembly. The connecting rod assembly can push the electrode unit to rotate relative to the main shaft assembly with the radial direction of the main shaft assembly as the axis under the drive of the first driving assembly, so that the electrode unit is in a contracted or expanded state to change the size of the electrode unit in the radial direction of the main shaft assembly. Thus, when the electrode unit is in the contracted state, the size of the electrode unit in the radial direction of the main shaft assembly is much smaller than the size before adjustment, which facilitates the electrode mechanism to pass through the central circular holes of the end plate, the head plate, and the tail plate and enter the inside of the circular cage rib. Furthermore, when the electrode unit is in the expanded state, seam welding operations can be performed inside the circular cage rib.

The invention relates to the technical field of seam welders, and discloses a seam welding tool for the matching end of a multi-layer metal corrugated pipe. Driving equipment and a transformer are arranged in the machine body, an upper welding wheel mechanism and a lower welding wheel mechanism are arranged on a machine body supporting table, an upper extending guide column capable of stretching out and drawing back in the axial direction is arranged on the upper welding wheel mechanism, and an upper additional electrode wheel is arranged at one end of the upper extending guide column. The lower welding wheel mechanism is provided with a lower extending guide column capable of stretching out and drawing back in the axial direction, and one end of the lower extending guide column is provided with a lower additional electrode wheel. The tool further comprises a synchronous driving mechanism used for driving the upper extending guide column and the lower extending guide column to stretch out and draw back synchronously. Through the synchronous design of the upper additional electrode wheel and the lower additional electrode wheel, synchronous stretching and positioning of the electrode wheels at the two ends are achieved in cooperation with the synchronous driving mechanism, roll welding operation of the two ends of a metal corrugated pipe can be completed at a time, and the machining efficiency is improved.

To provide a welding machine in which the difference in tangential speed between the drive wheels and welding wheels due to the wear of the welding wheels does not affect the quality of the welding of the parts to be welded and which requires a longer replacement time for the welding wheels.SOLUTION: The invention relates to a welding machine (1) configured to move along at least two parts to be welded, the welding machine (1) comprises: at least one drive wheel (20) intended to move the welding machine (1) relative to the parts to be welded; at least one actuator (22) capable of rotating the drive wheel (20); and at least one welding wheel (26) capable of welding the parts to be welded by rolling against at least one of the parts to be welded, with the welding wheel (26) being free to rotate relative to the drive wheel (20).SELECTED DRAWING: Figure 4

The present invention relates to a steel skeleton rolling welding machine, specifically a welding electrode device for a steel skeleton rolling welding machine. It includes an electrode seat, a welding electrode arm, and a water-cooled conductive electrode plate. The middle part of the welding electrode arm is hinged to the electrode seat through a rotating shaft. The upper end of the welding electrode arm is provided with a vertical connecting plate. The water-cooled conductive electrode plate is fixedly connected to the connecting plate through an insulating pad. The welding electrode plate is installed on the outer side of the water-cooled conductive electrode plate. The lower end of the water-cooled conductive electrode plate and the welding electrode plate are constrained by a fixed end, and the upper end of the welding electrode plate and the upper end of the water-cooled conductive electrode plate are constrained by a smooth surface. The bonding surface between the water-cooled conductive electrode plate and the welding electrode plate is an outwardly convex arc structure, and the material of the welding electrode plate is a thin plate. When the welding electrode plate of the present invention is heated and elongated, the upper end can be freely extended. Under the action of welding pressure, the welding electrode plate is tightly attached to the water-cooled conductive electrode plate, and no local heating phenomenon occurs, thereby increasing the service life of the welding electrode and reducing the production cost.

The present invention relates to an electrode mechanism and a seam welder. The electrode mechanism includes a support assembly and multiple groups of electrode unit groups; the multiple groups of electrode unit groups are movably mounted on the support assembly, and each group of electrode unit groups includes two electrode units symmetrically distributed along the radial direction of the support assembly; at least one group of electrode unit groups can move along the axial direction of the support assembly, and the multiple groups of electrode unit groups can be arranged in a staggered manner in the axial direction of the support assembly, so that each electrode unit can approach or move away from the support assembly to change the size of the multiple groups of electrode unit groups in the radial direction of the support assembly. When the multiple groups of electrode unit groups are arranged in a staggered manner in the axial direction of the support assembly, their radial size is much smaller than the radial size when the multiple groups of electrode unit groups are located at the same position in the axial direction of the support assembly, which facilitates the electrode mechanism to pass through the central circular holes of the end plate, the head plate and the tail plate and enter the inside of the circular cage rib, and further enables the electrode unit to perform seam welding operations inside the circular cage rib.

The invention relates to the technical field of ice-making cylinder preparation, in particular to a resistance welding process for ice-making cylinder processing, which is characterized by comprising the following steps: S1, appearance detection, S2, preassembly, S3, assembly fixing, S4, roll welding positioning, S5, resistance welding and S6, blanking detection. After pressing, a roll welding mode is adopted for further fixing, when upper and lower large and small wheel roll welding electrodes compress a welding workpiece, a lower electrode moves along a spiral groove of an inner barrel body of the ice making barrel and releases electric energy, so that pipelines formed between an outer shell and the inner barrel body are seamlessly welded, a refrigerant uniformly passes through the pipelines, and the problem of blow-by between the pipelines is avoided; and the problem of poor refrigeration of the ice-making barrel is thoroughly solved.

The invention relates to a plate end face seam welding machine head of a plate heat exchanger and a welding method, and belongs to the technical field of plate heat exchanger preparation. According to the technical scheme, a first seam welding wheel of a first seam welding head (201) and a second seam welding wheel of a second seam welding head (202) are both obliquely arranged, and a plate heat exchanger plate end face A is horizontally placed between the first seam welding wheel and the second seam welding wheel; the first seam welding head and the second seam welding head are installed at the front end of the movable electrode arm (103) and the front end of the fixed electrode arm respectively. The pressurizing cylinder is hinged with the lower end of the movable electrode arm; the second seam welding wheel of the second seam welding head and the first seam welding wheel of the first seam welding head are driven to rotate through the transmission mechanism (5), and welding of the plate end face A of the plate heat exchanger is completed under the action of pressure and current. The lap welding seam formed by the plate end faces of the plate heat exchanger is welded through seam welding, under the condition that the vertical distance between the plate end faces of the plate heat exchanger is small, good pressing and electric conduction can be achieved, automatic welding of the plate end faces is achieved, the production efficiency is high, and the welding quality is stable.

The invention discloses a resistance welding method and device for a titanium alloy aircraft with a large-curved-surface narrow-wave-pitch structure. The resistance welding device comprises a linear upper electrode, a spherical lower electrode, a V-shaped upper roller and a V-shaped lower roller, wherein the linear upper electrode and the spherical lower electrode are used for spot welding, and the V-shaped upper roller and the V-shaped lower roller are used for seam welding. According to the method, the fitting gap of the part to be welded is controlled before welding, a special spot welding electrode tip and a welding wheel end face structure are matched, a pulse current mode is adopted during welding, the'small-pressure, small-current and long-time 'welding specification is debugged, large-flow external cooling water is used, and cooling water protection is adopted for the back face of a welding seam, so that stable welding seam quality is obtained.

The application relates to the technical field of welding processing, and particularly discloses a metal welding corrugated pipe welding processing device which comprises a main frame, a fixed support is fixedly connected to the inner wall side of the main frame, a driving device is fixedly connected to the end of the fixed support away from the main frame, a supporting device is slidably connected to the side of the driving device, a cleaning device is fixedly connected to the side of the driving device, a filtering device is communicated with the side of the driving device away from the cleaning device, the fixed end of an electric sliding table is fixedly connected to the top of the inner wall of the main frame, and the movable end of the electric sliding table is fixedly connected with a welding device; the welding device is arranged above the supporting device. The metal welding corrugated pipe welding processing device can prevent heat deformation.

The invention discloses a packaging structure and a packaging method for improving the parallel sealing and welding yield, and the structure comprises a pedestal, a sealing ring is installed on the pedestal, a cover plate is installed on the sealing ring, a plane sealing surface is arranged on the sealing ring, a plurality of longitudinal sealing surfaces are arranged on the lower end surface of the cover plate, and one ends, far away from the sealing ring, of the plurality of longitudinal sealing surfaces are all connected to the plane sealing surface. A welding grid is jointly defined by the two adjacent longitudinal sealing-in faces and the two adjacent plane sealing-in faces, a first-stage sealing-in welding layer and a second-stage sealing-in welding layer are arranged between the longitudinal sealing-in faces and the plane sealing-in faces respectively, and the first-stage sealing-in welding layer and the second-stage sealing-in welding layer are jointly used for enhancing the sealing-in sealing performance of the cover plate and the sealing-in ring. The problem of air leakage of a product caused by poor welding between welding spots during first sealing welding is solved, and the sealing performance of the product is enhanced.

The present invention discloses an electrode cylinder assembly and welding system for ferrosilicon production, which includes a track, an electrode cylinder assembly rack, and an alternating current circumferential seam welding machine. The electrode cylinder assembly rack is slidably arranged on the track, and the alternating current circumferential seam welding machine is arranged on one side of the track. The alternating current circumferential seam welding machine includes two pairs of welding wheels and a welding housing. The rotation directions of the two pairs of welding wheels are opposite, and the disc notch of the electrode cylinder assembly rack is correspondingly arranged with the upper and lower wheel gaps of the two pairs of welding wheels of the alternating current circumferential seam welding machine. Advantages: The electrode cylinder assembly rack is provided to facilitate the disassembly and assembly of the electrode cylinder. It travels along the track and then uses the alternating current circumferential seam welding machine to complete the welding, reducing the personnel input and lowering the labor intensity.

The invention belongs to the technical field of welding devices, and particularly relates to a rolling type welding electrode for high-frequency resistance welding, which comprises a base, sleeves I are slidably connected to two sides of the upper end face of the base, telescopic rods I are slidably connected to inner cavities of the sleeves I, and extrusion rollers are rotatably arranged on one sides of the upper ends of the telescopic rods I; sliding blocks are connected to the two sides of the upper end face of the base in a sliding mode, second sleeves are connected to the upper end faces of the sliding blocks in a sliding mode, second telescopic rods are connected to inner cavities of the second sleeves in a sliding mode, a plurality of electrode rolling bodies are arranged at the upper ends of the second telescopic rods, and a feeding assembly used for sequentially placing the multiple welded pipes between the two extrusion rollers is further arranged on the base. By means of the feeding assembly, the multiple welded pipes can be sequentially placed at the welding positions to be welded, so that the process that a worker manually places the multiple welded pipes at the designated positions one by one to be welded is omitted, and convenience is achieved.

The present invention relates to a resistance seam welding system and method used for welding iron, aluminium, sheet metal materials to each other so as to form a smooth surface.