5results about How to "Solving Welding Difficulties" patented technology

This invention discloses a welding method for 9Cr-1Mo steel and 20MnMo steel. The welding method includes the following steps: S1, overlaying a transition layer; S2, cutting the transition layer; S3, machining the bevel of the transition layer side; and S4, butt-jointing the transition layer with the 20MnMo steel side. This welding method for 9Cr-1Mo steel and 20MnMo steel solves the problem of difficult welding of these two steels. Using alloy steel as the transition layer reduces welding costs, simplifies welding difficulty, and improves production efficiency.

This utility model discloses a compressible current collector, comprising a disk body and a deformable component coaxially arranged with the disk body. The deformable component includes a first deformable portion, a second deformable portion, and a third deformable portion connected in sequence at an angle. The end of the third deformable portion away from the second deformable portion is integrally connected to the disk body. The end of the first deformable portion away from the second deformable portion is provided with a connector for welding to a cover plate. The disk body can be pre-welded to the cell tabs, and the connector can be welded to the cover plate. Under axial pressure, the cover plate is pressed down, causing the deformable component to deform. After compression, the overall height of the current collector can be <1mm, which not only saves internal space and increases battery energy density, but also achieves large-area welding to ensure sufficient overcurrent capacity. The disk body and the deformable component are an integral structure, which allows the current collector to self-deform during penetration welding after assembly, ensuring close contact between the cell and the current collector. The integrated design reduces the assembly process.

This utility model relates to the field of welding technology and discloses a suspended non-planar welding device, including a carrier transfer device, an auxiliary material carrier flipping device, and an auxiliary material carrier lifting device. The carrier transfer device includes an electric cylinder and a fixture. The fixture is driven by the electric cylinder to move between the loading position and the welding position, and is equipped with a product positioning pin. The auxiliary material carrier flipping device includes a flipping drive mechanism and an auxiliary material carrier. The auxiliary material carrier is flipped 180° by the flipping drive mechanism. A positioning pin movable cylinder is set above the auxiliary material carrier. The auxiliary material carrier is equipped with an auxiliary material positioning pin and a vacuum adsorption hole. The auxiliary material carrier lifting device includes a lifting motor, a circular gear, a linear gear, and a track. The auxiliary material carrier is lifted and lowered along the track by the meshing transmission of the circular gear and the linear gear. This utility model has low cost and high efficiency. Through vacuum adsorption and double positioning pin design, it ensures that the positioning accuracy of the auxiliary material is ≤0.1mm, thereby improving the welding accuracy.

The application discloses an aluminum-silicon coating plate integrated door ring lap joint double-beam laser tailor-welding process, and belongs to the technical field of the integrated door ring tailor-welding technology, and comprises the following steps: (1) obtaining each part of the sheet by laser cutting the aluminum-silicon coating plate; (2) sheet lap joint: the sheet lap joint position should be selected on one side of the patch plate, namely the weld seam side; the lap joint structure is two layers, when the two layers are lap jointed, the thinner sheet is placed on the upper layer, and the thickness ratio of the upper and lower layers is controlled to be 1; 1-3; (3) preparing a welding wire for the lap joint tailor-welding; the welding wire comprises a welding wire body and a composite layer on the surface; and (4) laser tailor-welding. The lap joint double-beam laser tailor-welding process solves the butt joint gap problem, can realize high tensile strength of the weld seam, standard penetration, no defects of the weld seam and a product yield of more than 99.5%.

This utility model relates to the field of welding fixture technology, and discloses a welding fixture for an oil suction pipe assembly, including a base, a rotating structure, and a cleaning structure. The cleaning structure is fixedly connected to the top of the base, and the rotating structure is fixedly connected to one side of the cleaning structure. The rotating structure includes two support columns, each with a slot inside. A first gear is located at the bottom of the slot, and a second gear meshes with the top of the first gear. The cleaning structure includes a first fixing rod and a second fixing rod, with one end of the first fixing rod and one end of the second fixing rod perpendicularly fixedly connected. In this utility model, a motor drives the gear to rotate, and the gear is fixedly connected to a clamping ring, thereby driving the oil suction pipe held by the clamping ring. This allows the direction of the oil suction pipe to be adjusted during welding, enabling omnidirectional welding of the oil suction pipe, solving the problem of difficult welding in dead angles, and improving work efficiency.