11results 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 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 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.

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 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.

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 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.