3results 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 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 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.