12results about How to "Solving Welding Difficulties" patented technology

The invention relates to the technical field of welding equipment, and discloses a multi-degree-of-freedom welding mechanical arm which comprises a base, a mounting table is fixedly connected to the upper side face of the base, a horizontal rotating disc is movably embedded in the upper side face of the mounting table, and a horizontal rotating base is fixedly connected to the upper side face of the horizontal rotating disc. Driving rotating shafts are rotationally connected to the inner walls of the two sides of the horizontal rotating base, a vertical driving motor is fixedly connected to one end of each driving rotating shaft, an up-down swinging device is arranged on the other side of the horizontal rotating base, a horizontal rotating driving assembly is arranged in an inner cavity of the mounting table, and a welding arm connecting base is rotationally connected to the upper end of a vertical rotating connecting piece; according to the multi-degree-of-freedom welding mechanical arm, through multi-dimensional movement, the flexibility is improved, the welding head is accurately controlled, the working range is expanded, the welding quality and efficiency are remarkably improved, and the multi-degree-of-freedom welding mechanical arm is suitable for complex and changeable welding scenes.

A welding tool for an inner conductor and an outer conductor of a radio frequency superconducting cavity comprises an outer welding seam auxiliary tool and an inner welding seam auxiliary tool. The outer welding seam auxiliary tool comprises a limiting pull rod, a first limiting plate and a second limiting plate, the two end parts of the limiting pull rod penetrate through the first limiting plate and the second limiting plate respectively, so that the outer conductor is clamped and fixed; the inner welding seam auxiliary tool comprises a first pressing head and a second pressing head which are arranged oppositely. The first pressure head and the second pressure head are both provided with exhaust holes, an arc-shaped structure matched with the outer conductor is formed on one side, facing the first pressure head, of the second pressure head, and a fixing rod for assembling the inner conductor and the outer conductor into a whole is installed between the first pressure head and the second pressure head. The invention further provides a welding method for the inner conductor and the outer conductor of the radio frequency superconducting cavity. The welding problem of the special structure of the outer conductor is solved, and the welding quality is guaranteed; the thermal deformation of the elliptical curved surface structure with a specific size when the elliptical curved surface structure is welded with the inner conductor is reduced, and the welding precision is ensured.

The utility model relates to welding positioning tool technical field, concretely relates to a kind of tool for metal door embedded part welding, including base, the side of base is fixed with support, support is used to connect resistance welding machine.The upper portion of base is equipped with two moving seats supported by base, the slide groove extending along the first direction of being set on base, two moving seats can be positioned along the first direction respectively and move, to adjust the distance between two slide blocks.Two moving seats are respectively provided with boss on the side along the first direction away from each other, and the boss is respectively used to support the welding part of embedded part two ends.Plugged into vertical positioning column on moving seat, the upper end of positioning column protrudes from moving seat, positioning column is used to be plugged into the positioning hole of embedded part, and positioning column can be positioned along the first direction relative to moving seat and move.

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.

The present invention relates to the field of welding technology, and specifically to a laser heating soft soldering equipment. It includes a mounting frame, a Z-axis sliding mechanism is mounted on the mounting frame, a tin ball separation mechanism and an optical path system are mounted on the Z-axis sliding mechanism, the tin ball separation mechanism is connected to the optical path system, and a calibration system is mounted on the mounting frame corresponding to the optical path system; the optical path system includes a transmission optical fiber connected to a laser, and the output end of the transmission optical fiber is sequentially connected to a collimating lens and a focusing lens, and the tin ball separation mechanism can separate multiple tin balls one by one to the focal point under the focusing lens in the optical path system. The laser heating soft soldering method adopted in the present application not only does not need to contact the product during the welding process and has no stress on the product, but can also be used for miniaturized pads that are difficult to achieve with traditional methods, and has high energy utilization, is environmentally friendly and energy-saving.

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%.

The invention discloses a Q420-grade steel self-protection transverse position large-gap welding method which comprises the steps that a welding groove is machined in an upper position plate before welding, then a to-be-welded joint is preheated, and if the thickness of the plate is smaller than or equal to 28 mm, preheating is not conducted; tapered iron with longitudinal grooves is plugged and connected between the welding horse plates and the panels which are arranged at intervals, and specially-made wide red copper gaskets are fixed to the back faces of the grooves in a penetrating mode; during welding, a self-protection flux-cored wire is adopted for carrying out transverse position large-gap multi-layer and multi-pass butt welding; and the welding horse plate and the inclined iron are removed after welding, and the wide red copper gasket, the welding horse plate and the inclined iron can be reused. In the welding process, the wind resistance is high, good back face forming after welding can be achieved through the wide red copper gasket, the problem of Q420-grade steel self-protection transverse position large-gap welding can be effectively solved, and the welding method is suitable for steel structure ring opening large-gap welding operation in bridge sites, mountainous areas and other field severe environments and high-altitude places where gas is inconvenient to use.

The invention discloses a double-support pre-reactor for hydrogen fluoride. The main shaft consists of a front shaft head, a hollow shaft and a rear shaft head. The front shaft head, the rear shaft head and the hollow shaft are welded into one. The front section of the hollow shaft corresponds to the main bearing section, the middle section of the hollow shaft corresponds to the fluorite feeding section and the reaction section, and the rear section of the hollow shaft corresponds to the extension and expansion section. The spiral main shaft is welded and processed by a 40CrMoNiA thick-walled tube and a 40CrMoNiA forging and subjected to quenching and tempering treatment. Spiral components of different materials and shapes are arranged on the main shaft, which not only improves the corrosion resistance of different sections of the pre-reactor, but also solves the welding problem between different alloys and reduces the cost.

A welding positioning fixture for eccentric small parts includes a base, one side of which is connected to a welding platform. The other side of the base has a positioning plate for placing an eccentric earring. The positioning plate has a positioning block for pressing the eccentric earring, and the positioning block is connected to the positioning plate by locking screws. This eccentric small part welding positioning fixture features a detachable connection between the base and the welding platform, making it adaptable to different types of eccentric small parts. By adjusting the installation position of the positioning plate on the base, it can accommodate eccentric earrings with different structural parameters. The locking screws are used to press and release the positioning block, achieving uniform force distribution and eliminating eccentric forces. This technical solution provides a welding positioning fixture that accurately adapts to eccentric structures, ensures welding positioning accuracy, is easy to operate, and has strong versatility, becoming a key to solving current welding problems of eccentric earrings and improving processing efficiency and quality.

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.