13results about How to "Weld smooth" patented technology

The invention provides a cylindrical lithium battery. A first hole and second holes are formed in a plate body part of a positive collector plate in the cylindrical lithium battery, the diameter of each second hole is 25%-35% of the diameter of the plate body part, the sum of the areas of all the second holes is 0.9-1.5 times of the area of the first hole, and a fusing groove is formed in a tail body part of the positive collector plate. The distance between the center position of the fusing groove and the end, away from the disc body part, of the tail body part is 68%-78% of the length of the tail body part, and the minimum sectional area S2 of the tail body part in the fusing groove is 45%-65% of the overall sectional area S1 of the tail body part. According to the cylindrical lithium battery, the disc body part and the tail body part of the positive collector disc are reasonably designed, so that the cylindrical lithium battery is balanced in the aspects of safety, liquid injection performance, weldability and the like.

The utility model relates to welding machine technical field especially for a kind of welding machine of convenient dismounting replacement welding head, including machine body, the lower part of the right end of machine body is connected with connecting line, the end fixedly connected with handheld welding gun of connecting line away from machine body, the middle part fixedly connected with mounting block in the front end of handheld welding gun, the front end of mounting block is equipped with connecting groove, the inside of connecting groove is clamped and is connected with installation component, the front part of mounting block upper end and lower end are all equipped with embedding slot, the left end and right end of mounting block are all equipped with pop-out slot, the lower end of machine body four corners is fixedly installed with moving mechanism.The welding machine of the utility model is convenient to dismount replacement welding head, the welding head body is conveniently and quickly installed on handheld welding gun, also convenient subsequent quick dismounting replacement, whole process operation is simple, shortens the replacement time of welding head body, especially suitable for the welding operation scene of high work efficiency requirement, such as production line batch welding.

The lithium battery module welding equipment comprises a rack and further comprises an operation table, the operation table is connected to the lower portion of the rack, and a first feeding mechanical arm, a second feeding mechanical arm and a discharging mechanical arm are arranged on the side face of the operation table; and the welding machine is connected to the operation table. A battery is obtained from a first feeding table through a first feeding mechanical arm, the battery is placed in a discharging base below the battery, a pole piece is obtained from a second feeding table through a second feeding mechanical arm, the pole piece is placed on the battery, a welding machine welds the pole piece and the battery, and after welding is completed, a monitoring mechanism observes whether welding is qualified or not. The discharging mechanical arm places the qualified batteries on the first discharging table, and places the unqualified batteries on the second discharging table, by integrating a plurality of automatic assemblies, the efficient welding process and real-time quality monitoring are achieved, the production efficiency and the product quality are improved, the important application value is achieved, and the working efficiency is improved.

This utility model relates to the field of laser welding technology and proposes an underwater welding laser head, including a stainless steel tube cover; a connecting plate fixedly connected to the inner wall of the stainless steel tube cover, one end of which is fixedly connected to the end of the laser welding head; a spray disc fixedly connected to the lower end of the inner wall of the stainless steel tube cover, with spray holes at equal angles at the bottom of the spray disc; a connecting pipe extending to the outside of the stainless steel tube cover fixedly connected to one side of the top of the spray disc, with the bottom end of the connecting pipe communicating with the interior of the spray disc; and a protective cover movably connected to the bottom of the stainless steel tube cover, with fixing components at the top of the protective cover and the bottom of the stainless steel tube cover. Through the spray disc, connecting pipe, and spray holes, an umbrella-shaped protective gas curtain can be sprayed out, ensuring that a small area below the end of the laser welding head is free of water, facilitating welding operations. At the same time, high-pressure gas blows away welding fumes, ensuring smooth welding.

The utility model relates to the technical field of heat exchange equipment maintenance, and discloses a finned tube head welding seam maintenance device for an air cooler tube bundle box. The device is composed of a cylindrical head screw, a gasket, a positioning sleeve, a positioning mandrel, a cutter bar, a guide positioning ring, a guide threaded sleeve, a threaded sleeve external thread, a limiting ring, a bearing, a positioning screw, a locking sleeve, an alloy blade, a cutter holder and a screwed plug hole. The cutter bar penetrates through the air cooler tube bundle to the tube head at the other end through the screwed plug hole, the positioning end of the cutter bar is inserted into the tube head hole at the other end, and the hard alloy blade corresponds to the welding seam position of the tube head of the air cooler tube bundle; the middle part of the cutter bar is provided with a guide screw sleeve for positioning and guiding a screwed plug hole; the tail part of the cutter bar is driven by a magnetic drill to operate; the cutter bar drives the hard alloy blade to spot and cut a welding seam in the air cooler tube bundle and the tube head; welding ring protrusions or flaws at the welding seam position between the tube bundle and the tube head can be removed, it is guaranteed that the welding seam of the tube head is smooth, and the service life of the air cooler tube bundle is prolonged.

The utility model relates to welding equipment technical field especially relates to a kind of ultrasonic welding equipment, its technical scheme includes rack, the workbench is installed on the rack upper end, the workbench is provided with cutting mechanism, ultrasonic welding mechanism and pipe winding mechanism;Second servo motor is provided on the cutting mechanism, and the second servo motor lower end is equipped with cutting piece, mounting bracket is provided on the ultrasonic welding mechanism, ultrasonic welding head is provided on the mounting bracket upper end, and welding piece is provided at the ultrasonic welding head lower end.The utility model is provided with multiple groups of rotary transmission wheel in ultrasonic welding equipment, rotary transmission wheel not only can be successfully delivered to the material welding area, but also can be orderly collected to the material after welding on the wire frame, and cooling fan is provided at welding head, cooling fan is realized to the cooling of welding area, to ensure the smooth progress of welding.

The utility model belongs to the technical field of seat manufacturing, especially a welding tool, in view of the low positioning accuracy of traditional welding tool, the poor operation flexibility, the deviation caused by the dependence on artificial positioning workpiece, and the problem that the design does not fully consider the convenience and safety, influence welding quality and efficiency etc.

This utility model relates to the field of battery technology, and in particular to an electrode assembly and a battery cell. The electrode assembly has N tabs at its first axial end, where N ≥ 2. Some of the N tabs are designated as first tabs, and the remaining tabs as second tabs. The distance between the wall of the venting channel and the outer wall of the electrode assembly in the radial direction of the battery cell is D (in mm). The width of the tabs in the radial direction of the battery cell is W, where 4 mm ≤ W ≤ 0.5 × D. The distance between adjacent first and second tabs in the radial direction of the battery cell is M, where 1.5 mm ≤ M ≤ 10 mm. This utility model leads the positive and negative tabs out from the same side of the electrode assembly. After the battery cell is assembled, the flow does not need to pass through the large surface of the casing, effectively reducing the battery's internal resistance. It also improves the utilization rate of the internal space of the battery cell, increases the energy density of the battery cell, meets the power consumption and range requirements of devices, and ensures smooth welding of the tabs to the current collector, cover plate, or casing, avoiding interference between multiple tabs and ensuring the performance of the battery cell.

This invention discloses a welding device for irregularly shaped sheet metal parts, belonging to the field of sheet metal welding technology. It includes a handle, a welding arm connected to the handle, and a welding head installed at the end of the welding arm. The welding arm includes several spliced ​​joint sleeves, which are connected end-to-end. An included angle exists between the two end faces of each joint sleeve. Adjacent joint sleeves are rotatably connected via bearings. A first motor is installed on the inner wall of each joint sleeve, and a gear is connected to the output end of the first motor. An internal gear ring meshing with the gear is installed on the adjacent joint sleeve. A welding wire is connected to the welding head. The splicing of the joint sleeves forms a channel for the welding wire to pass through. A deflection control component for controlling the angle of the welding head is installed on the outer wall of the welding arm. This invention solves the problem of not being able to clearly observe the state of the molten pool and the alignment of the welding wire due to severe obstruction of the view by the workpiece's structure.

The invention discloses friction stir welding equipment for automobile part production and manufacturing, and relates to the technical field of automobile part production and manufacturing. Friction stir welding equipment for production and manufacturing of automobile parts comprises a support mechanism, the support mechanism comprises a bottom plate, stand columns are fixedly connected to the two sides of the upper surface of the bottom plate correspondingly, a middle shaft assembly used for being connected with the automobile parts in a sleeving mode is jointly erected at the upper ends of the two stand columns, and a main welding mechanism used for friction stir welding is arranged in the middle of the upper surface of the bottom plate; the main welding mechanism comprises a welding assembly and a base assembly, the welding assembly comprises a first motor, the output end of the first motor is fixedly connected with a stirring needle, the middle of the stirring needle is movably sleeved with a first shoulder shaft, a first spring wound around the stirring needle is arranged between the first shoulder shaft and the fixed end of the first motor, and the upper end of the first spring is fixedly connected with the first shoulder shaft. Friction stir welding equipment for producing and manufacturing automobile parts can smoothly weld polygonal deep cavities and cylindrical deep cavities, and the application range is widened.

This invention discloses a flux for double-wire submerged arc deep penetration welding of H-beams, its preparation method, and welding method. The flux raw materials include magnesite, wollastonite, white corundum, manganese oxide powder, mica, kaolin, titanium diboride powder, zircon, and scandium oxide powder. The flux composition, by mass percentage, includes: MgO: 10%–25%; Al2O3: 25%–40%; SiO2: 15%–30%; P: ≤0.02%; S: ≤0.02%; K2O: ≤3%; CaO: 3%–10%; TiB2: 1%–5%; MnO: 6%–10%; Fe2O3: 1%–6%; ZrO2: 3%–8%; Sc2O3: 1%–3%. The flux of this invention protects the weld metal from harmful gases in the surrounding atmosphere when it is in the liquid state, eliminating welding defects such as porosity, slag inclusions, undercut, and cracks, ensuring full penetration of the web, good fusion of the flanges and weld formation, and improving the strength and toughness of the weld by transition alloying elements.

The invention provides a preparation process of monocrystalline silicon and a single crystal furnace, and the preparation process of monocrystalline silicon comprises the following steps: in a material melting and temperature adjusting process, controlling the furnace pressure of the single crystal furnace to be a first furnace pressure, and blowing into a water cooling structure and towards the bottom of the water cooling structure at a first preset main blowing rate, blowing through a blowing port of the blowing structure at a first preset auxiliary blowing rate; in the welding process, the furnace pressure of the single crystal furnace is controlled to be second furnace pressure, air is blown into the water cooling structure in the direction facing the bottom of the water cooling structure at a second preset main air blowing speed, and air is blown through an air blowing opening of the air blowing structure at a second preset auxiliary air blowing speed; the first preset main blowing rate is smaller than the second preset main blowing rate, and the first preset auxiliary blowing rate is equal to the second preset auxiliary blowing rate. Through the technical scheme provided by the invention, the technical problem of poor cleaning effect on SiO steam in the preparation process of monocrystalline silicon in the prior art can be solved.

The invention discloses bent pipe cutting equipment for hardware product manufacturing, and relates to the technical field of cutting equipment.The bent pipe cutting equipment comprises a base, an adjusting assembly is installed at the top of the base, the adjusting assembly comprises two gears rotationally arranged at the top of the base and symmetrically arranged, and the outer walls of the two gears are provided with contact arms matched with the two ends of a bent pipe; and a springback piece matched with the gear is mounted at the top of the base. Through cooperative arrangement of the driving assembly, the adjusting assembly and the triggering piece, the two ends of the bent pipe make contact with the inner side walls of the contact arms on the two symmetrical gears, the end faces of the two ends of the bent pipe are attached to the inner side walls of the contact arms under pushing of the driving assembly in cooperation with the pressing force of the springback piece, and meanwhile the contact arms drive the triggering piece to move backwards; the trigger piece moves backwards to drive the rotating assembly and the cutting device on the rotating assembly to move, the intersection point of extension lines of the two contact arms, namely the bending axis of the bent pipe, can be accurately positioned, and manual measurement or repeated adjustment is not needed.