125 results about "Shot welding" patented technology

The invention relates to the technical field of image data processing and intelligent control, and discloses a patch board spot welding track intelligent control method and system based on visual perception. According to the method, synchronous image streams are collected through a binocular vision sensor, and epipolar correction image pairs are generated through timestamp synchronization, ROI extraction and epipolar correction processing; calculating a disparity map by adopting a stereo matching algorithm, and constructing a compensated three-dimensional point cloud model based on deformation vector field fusion multi-frame point cloud data of a radial basis kernel function; welding spot position error vectors are generated by extracting welding spot feature points and performing spatial filtering optimization; and carrying out inverse kinematics calculation on the mechanical arm by adopting a damping least square method, carrying out safety constraint optimization in combination with prospective collision risk assessment and real-time pose data, and generating a trajectory compensation instruction. According to the method, the problems of dynamic deformation compensation and motion safety in patch plate welding are solved, the submillimeter welding spot positioning precision is achieved, and the welding quality stability and the system robustness are improved.

This invention belongs to the field of iron and steel smelting technology, and particularly relates to a protective device and manufacturing method for a converter movable fume hood lifting lug. It includes lifting lugs and a movable fume hood. The lifting lugs are welded to the movable fume hood. A protective cover with an internal interlayer, matching the outer contour of the lifting lug, is hung on the outside of the lifting lug. The two sides of the interlayer of the protective cover are connected by ribs. Several V-shaped anchoring nails are welded to the interlayer wall of the protective cover. Refractory grout is filled into the interlayer of the protective cover. Asbestos is laid between the protective cover and the lifting lug. One end of the protective cover is welded to the movable fume hood. Several round rod hanging lugs are welded to both sides of the protective cover, and the upper ends of the round rod hanging lugs are hung on the lifting lugs. This invention isolates the lifting lug from the heat source through the protective cover, preventing the lifting lug from being burned. While the protective cover is fixed to the lifting lug and the movable fume hood, it reduces the contact area, thereby reducing heat transfer.

The invention relates to the technical field of fan welding, in particular to a fan impeller welding device which comprises a welding manipulator and a rotating station and further comprises a supporting mechanism which is arranged on the rotating station and used for limiting and cooling blades spot-welded on a wheel disc. The arc-shaped plates are adopted for shielding and protecting the two sides of the welded blades, welding slag can be prevented from adhering to the wheel disc and the blades, then it is guaranteed that the quality of all the blades is consistent with the original design, the difficulty of later dynamic balance correction is lowered, meanwhile, the limiting plates can be used for clamping and limiting the blades during welding, and the welding efficiency is improved. According to the invention, the problems of deflection and deformation of the blade due to high temperature of welding are prevented, the balance design of the impeller is further ensured, the overall production efficiency of the impeller is indirectly improved, and the limiting plate is adopted for clamping the blade which is being welded, meanwhile, the blade can be protected, and welding slag is prevented from being adhered to other positions outside the welding point of the blade.

The invention relates to the technical field of aerospace material processing, in particular to a laser hybrid welding method for a pressure vessel lock bottom structure, which comprises the following steps: step 1, carrying out pre-welding treatment on a welded junction of the pressure vessel shell lock bottom structure; 2, the equatorial seam of the pressure container is assembled, and a mechanical arm multifunctional tool is adopted for fixed spot welding; 3, local preheating is conducted on a welding seam of the equatorial seam; fourthly, laser hybrid welding is conducted on the whole pressure container in a laser-TIG composite mode; and 5, after welding is completed, inspection and treatment are conducted. By means of the laser-TIG composite welding technology, the problem that an electron beam welding gun cannot conduct all-position welding is solved, and the problems that a key hole is unstable through single-laser welding and air holes do not reach the standard under other arc welding non-vacuum conditions are solved; and a mechanical arm multifunctional tool is arranged, the welding efficiency and the assembling precision are improved, and the problem that the electron beam welding vacuum chamber limits the product structure size is solved.

The invention relates to the technical field of steel pipe machining, in particular to a small and medium pipe machining production system and method. Comprising a raw material frame, a code spraying and lineation machining system, a fixed-length cutting system, double-end beveling equipment, double-end automatic grinding equipment, a steel pipe conveying and buffering station, an automatic flange assembling system, a manual assembling and bottoming system, an automatic robot cover surface welding system, a short pipe welding workstation and a ground logistics system. According to the method, control over length measurement, rust removal, bent pipe removal and the like is added at the beginning stage of the process, advanced technologies and equipment such as laser rust removal and a welding robot are adopted, and mechanization and intellectualization of the butt joint form of medium and long pipe sections are achieved; the functions of steel pipe feeding, pipe wall rust removal, ink jetting, fixed-length cutting, automatic beveling, automatic grinding, flange plug-in welding automatic assembly spot welding, robot automatic cover face welding, automatic logistics conveying and short pipe assembly welding are achieved.

The present application relates to aerospace stainless steel tank technical field, and disclose the control method of welding shape size of short shell and same material of tank, including aerospace stainless steel tank, including the following steps: A, first the cylinder section and end frame are positioned together; B, from I, II, III, IV four quadrant symmetry positioning welding; C, then symmetric four point welding between the quadrant, in this way in two symmetric points weld 8 points respectively; D, the special hexagonal ring inside support is placed in the weld welding area; E, complete positioning support forming, the end frame and the cylinder section of short shell are staggered seam reduction, reaches the design standard, avoids the product scrapping repair caused by serious deformation of welding, shortens the production cycle of product, reduces the uncontrollable factors, guarantees the height shape size at the same time, and lays a certain foundation for the control of overall section assembly shape size in later period.

This invention provides a process for welding positioning ribs in a nuclear power generator, comprising the following steps: S1: Place the generator base horizontally on a platform and level it; S2: Mark the machining allowance line and hammer a punch; S3: Turn the generator base upside down, place it upright on the platform, and level it; S4: Install the positioning rib welding fixture according to the marked circular line in S2 and spot weld it in place; S5: Pull steel wires at the slots of the positioning rib welding fixtures at both ends of the generator base; S6: Weld the limiting round steel; S7: Remove the steel wires and hoist the positioning ribs in groups; S8: Adjust the positioning rib welding fixtures so that the positioning ribs are tightly attached to the limiting round steel; S9: Assemble the support blocks and spot weld them in place; S10: Use a 3D laser scanner to detect the position and dimensions of the positioning ribs and record the data; S11: Weld in sequence, and perform flat welding on all welds; S12: Grind the welds and perform 100% flaw detection. S13: Remove the positioning rib welding fixture, and finally use a 3D laser scanner to detect the position and size of the positioning rib, and record it for future reference.

The invention discloses a cooperative control method and system for transfer and turnover of a tower drum track, and relates to the technical field of industrial control. The method comprises the following steps: acquiring real-time state parameters of a first rail car and a second rail car; the target overturning angle of the second rail car is calculated according to the first overturning angle, and the second rail car is controlled to overturn the second tower barrel section to the target overturning angle; the second rail car is controlled to move towards the first rail car according to the second bearing position, the circular seam gap and the unfitness of butt joint are detected in the moving process, and the moving speed and the second overturning angle are finely adjusted till the circular seam gap and the unfitness of butt joint reach the allowable welding range; and after assembly spot welding is completed, the two rail cars are switched to a rigid synchronous mode and synchronously rotate at the same overturning angular speed, and the assembled tower shell sections are driven to integrally rotate so as to be matched with automatic welding equipment to complete girth welding. Automatic cooperative control over transferring, overturning, assembling and girth welding of the tower shell sections is achieved, and production safety and welding quality are improved.

A hot-pressed member having excellent post-coating corrosion resistance and excellent resistance spot weldability, a method for manufacturing the hot-pressed member, and a steel sheet for hot pressing suitable for a hot-pressed member having excellent post-coating corrosion resistance and excellent resistance spot weldability. The hot-pressed member includes a Zn-based coated layer on a first side of a steel sheet, and a Zn-based coated layer on a second side of the steel sheet. A coating weight of Zn in the Zn-based coated layer on the first side of the steel sheet is 5 to 35 g / m2, and an average line roughness Ra of a surface of the Zn-based coated layer on the first side is less than or equal to 2.5 μm. The average line roughness Ra of a surface of the Zn-based coated layer on the second side of the steel sheet is greater than or equal to 3.5 μm.

This invention discloses a welding positioning process for a frame of a frame-wound machine, comprising the following steps: Step 1: Positioning the Y-shaped part using a Y-shaped part positioning welding component, and fixing the straight plate and the bent part by spot welding to obtain a semi-finished Y-shaped part; Step 2: Fixing the spot-welded straight plate and the bent part by full welding using a welding robot to obtain a finished Y-shaped part; Step 3: Positioning the finished Y-shaped part from Step 2 to the semi-finished frame using a frame positioning welding component, and then fixing the finished Y-shaped part to the semi-finished frame by spot welding; Step 4: Fixing the Y-shaped part from Step 3 to the semi-finished frame by full welding using a welding robot to obtain a finished frame. This invention, through the Y-shaped part positioning welding component, can effectively correct the deformation of the bent part and the straight plate, thereby ensuring uniformity of the Y-shaped part template, making the dimensions of the riveted Y-shaped part stable and reliable, and reducing the workload of manual workpiece correction.

The utility model relates to the technical field of automobile part machining, in particular to an automobile part spot welding auxiliary device which comprises a workbench, a bidirectional lead screw, a first fixing block, a first fixing frame, a servo motor and the like. Two bidirectional lead screws are rotatably connected to the bottom of the workbench, two first fixing blocks are slidably connected to the front side and the rear side of the top of the workbench, first fixing frames are connected between the front first fixing block and the rear first fixing block, the first fixing blocks are in threaded connection with the bidirectional lead screws, and a servo motor is installed on the workbench. According to the auxiliary device, the connecting base, the second fixing block, the volute spiral spring, the rubber block and the connecting rod are arranged, under the elastic action of the volute spiral spring, the second fixing block can press the automobile part, the rubber block can increase the friction force between the automobile part and the second fixing block, and the stability of the auxiliary device is further improved; and an air cylinder and a lower pressing plate are further arranged, so that the second fixing block can automatically press and loosen the automobile parts.

The present invention relates to a zinc plated steel sheet having excellent surface quality and spot weldability, and a manufacturing method therefore. A zinc plated steel sheet according to one aspect of the present invention comprises a base steel sheet and a zinc-based plating layer formed on the surface of the base steel sheet, wherein the GDOES profile of oxygen, which is measured in the depth direction from the surface of the base steel sheet, has a form in which a local minimum point and a local maximum point alternately appear in the depth direction from the surface, and the difference (a local maximum value−a local minimum value) between the oxygen concentration (a local minimum value) at the local minimum point and the oxygen concentration (a local maximum value) at the local maximum point can be 0.1 wt % or more.

The utility model relates to the field of civil air defense doors, in particular to a civil air defense door flexible spot welding tool which comprises a turnover mechanism and fixing mechanisms connected to the two sides of the turnover mechanism respectively, conveying mechanisms are arranged on the opposite sides of the fixing mechanisms respectively, and welding robots are arranged on the two sides, in the vertical direction of the conveying mechanisms, of the fixing mechanisms respectively. A receding pit is formed in the lower portion of the turnover mechanism, the turnover mechanism comprises a clamping limiting assembly and a driving assembly for driving the clamping limiting assembly to turn over, the clamping limiting assembly comprises limiting frames which are symmetrically and oppositely arranged, and a plurality of first electric rollers are symmetrically arranged on the opposite sides of the limiting frames at intervals. According to the civil air defense door overturning device, the driving assembly drives the limiting frame to rotate, the civil air defense door is clamped and limited under the action of the first telescopic rod assembly, the hydraulic rotary cylinder drives the limiting baffle to rotate by 90 degrees, and the limiting baffle is matched with the limiting groove for clamping, so that the civil air defense door is prevented from sliding off in the overturning process.

This invention relates to the field of photovoltaic module technology and provides a solar cell, a solar cell module, and a photovoltaic system. The solar cell module includes a silicon substrate with alternating grid lines on its surface. The grid lines are connected to a solder strip via at least one row of welding media. The welding media includes multiple welding media points along a first direction. The solder strip at least partially covers the welding media points and is also connected to the silicon substrate via several adhesive members. Several clearance areas are provided on the at least one row of welding media. At least part of the adhesive members are located within the clearance areas, where no welding media is present. By providing clearance areas, the adhesive members are prevented from flowing during extrusion and contacting the welding media points, thus preventing contamination of the welding media points by the adhesive members. This also optimizes stress distribution and offers advantages such as preventing contamination of the welding media points by the adhesive members, improving welding reliability, reducing cold solder joints and voids, optimizing stress distribution, and extending service life.

To provide a solid phase resistance spot joining device capable of improving joining quality.SOLUTION: The solid phase resistance spot joining apparatus includes a pressurizing shaft 10 capable of pressurizing materials to be joined to each other in the thickness direction thereof. The pressurizing shaft 10 has a pressurizing part 14 for pressurizing the material to be joined. A length in a first direction orthogonal to a pressurizing direction is longer than a length in a second direction orthogonal to both the pressurizing direction and the first direction in a cross section of the pressurizing part 14 on an orthogonal plane orthogonal to the pressurizing direction of the material to be joined by the pressurizing shaft 10.SELECTED DRAWING: Figure 2

The utility model belongs to the technical field of nut convex point welding, and particularly relates to a P-type electric resistance welding gun for nut convex point welding and a welding robot. The P-type resistance welding gun comprises a gun body assembly, a driving motor, a movable electrode arm, a static electrode arm, a nut retainer and a displacement sensor. The driving motor is in transmission connection with the movable electrode arm through a connecting rod structure, and a first convex spot welding electrode is arranged at the end of the movable electrode arm. A second convex spot welding electrode is arranged at the end part of the static electrode arm; the nut retainer is arranged to position and take out the salient point nut from a nut supply device; according to the P-type electric resistance welding gun, the salient point welding function is achieved, the P-type electric resistance welding gun is installed on a welding robot, the adaptability and efficiency of the electric resistance welding gun are greatly improved, the application range is wider, the nut retainer and the displacement sensor are installed on the gun body assembly in a modularized mode, and the welding efficiency is improved. Disassembly and maintenance are convenient.

The application discloses a welding equipment for flanges and pipes, relates to the technical field of pipe welding, and comprises a base plate, a clamping mechanism arranged on the base plate, the clamping mechanism clamping and fixing on a pipe, a rotating disc rotatably arranged on the base plate, a work area formed in the base plate and the rotating disc, the pipe being located in the work area, a welding gun arranged on the rotating disc, a driving mechanism arranged on the base plate, and the driving mechanism driving the rotating disc to reciprocatingly rotate along the work area. When the flanges and the pipes are welded, the flanges are first spot-welded and fixed on the pipes, then the base plate is fixed on the pipes by using the clamping mechanism, so that the pipes are located in the work area of the base plate, and subsequently the driving mechanism drives the welding gun to rotate around the pipes by the rotating disc, and the welding gun automatically welds the flanges and the pipes. In this way, the volume of the welding equipment is greatly reduced, and it is convenient for construction personnel to carry the welding equipment, so that the construction personnel can use the automatic welding equipment on a construction site, and the welding efficiency and the welding quality are improved.

The application discloses a PMMA composition and a preparation method and application thereof. The preparation method of the PMMA comprises the step of melt mixing materials in an extruder, wherein the area where a screw is located is sequentially divided into a primary section, a middle section and a tail section in the extrusion direction, the PMMA resin and dilute hydrochloric acid in the materials are fed from the feeding port of the primary section, the activator and POK resin are fed from the feeding port of the middle section, and the processing aid is fed from the feeding port of the tail section; and the materials are cut into particles after being extruded, so that the PMMA composition is obtained. The PMMA composition obtained by the application has good solvent resistance, can improve the solvent resistance of a double-shot welding position, and avoids cracking of a vehicle lamp.

The utility model discloses a continuous one-time welding multi-layer angle steel bracket device which comprises a bottom plate, and a welding mechanical arm is arranged above the bottom plate. Two supporting seats are symmetrically mounted above the bottom plate, and a supporting structure is mounted on the two supporting seats; through the arrangement of the positioning blocks, the positioning check blocks, the first toggle push clamp and the second toggle push clamp, three multi-layer angle steel brackets can be accurately positioned, positioning point welding operation of the multi-layer brackets is completed through the welding mechanical arm, the multiple multi-layer angle steel brackets can be transferred to the second welding table together after station point welding is completed, and the welding efficiency is improved. The multiple layers of angle steel brackets are overturned and adjusted to be in a vertical state, at the moment, the welding mechanical arm can be used for conducting continuous welding operation on the multiple layers of angle steel brackets, welding machining of the multiple layers of angle steel brackets is completed, the multiple layers of angle steel brackets are continuously welded, the production efficiency can be improved compared with manual welding, meanwhile, the labor intensity of workers is effectively relieved, and the production efficiency is improved. The production cost is saved.

The invention belongs to the technical field of bridge construction, and relates to a universal assembly type test bench for a beam building machine, the test bench comprises a first longitudinal beam group, a second longitudinal beam group, cross beam structures, a column structure, a rear anchor beam structure and an anchoring clamp structure, the two ends of the top of the column structure along the length direction are respectively connected with the cross beam structures; two first longitudinal beam sets are arranged on the cross beam structure, two second longitudinal beam sets are arranged on a transverse supporting rod of the stand column structure, and the front ends of the first longitudinal beam sets and the front ends of the second longitudinal beam sets are fixed through spot welding. The anchoring clamp structure comprises an upper clamp and a lower clamp, the rear end of each first longitudinal beam set is fixed to the cross beam structure through the corresponding upper clamp, and the rear end of each second longitudinal beam set is fixed to a transverse supporting rod of the stand column structure through the corresponding lower clamp. According to the flexible test bench, various working condition experiments of the beam building machine can be realized, and the whole machine test requirements of the beam building machines with various specifications can be met by one set of structure.

The utility model discloses a spot welding tension test fixture for an explosion-proof combined cap of a cylindrical lithium battery, which comprises a connecting block and a plurality of pull claws connected onto the connecting block, and the pull claws are movably connected with the connecting block through pins; a pull shaft is movably connected to the connecting block and provided with a limiting sleeve making contact with the abutting end of the pull claw. Along with the downward movement of the pull shaft, the limiting sleeve pushes the pull claws to rotate around the pins, so that the pins of the pull claws are close to each other. Through up-and-down movement of the pull shaft, the limiting sleeve extrudes the abutting ends of the pull claws, the pull claws rotate around the pins, and then the ends, containing the pins, of the multiple pull claws get close to or away from one another to adapt to caps of different sizes, and the caps are effectively clamped. When in use, the pull shaft is driven by a tensile machine to pull off the connecting sheet connected with the pin upwards, so that the welding upright posts of the two welding spots are exposed, and the welding spot upright posts are convenient to observe and measure.

The present application relates to nut automatic welding equipment technical field, especially to a kind of automatic conveying, placing nut spot welder, including lower spot weld assembly, the lower spot weld assembly is installed on rack;Upper spot weld assembly, the upper spot weld assembly is installed on lifting assembly and is located just above the lower spot weld assembly;Nut delivery assembly, the nut delivery assembly is installed on the rack, and the nut delivery assembly is connected with nut vibration disc by conveying assembly, the nut delivery assembly is used to deliver the nut conveyed by the conveying assembly to the welding end of the lower spot weld assembly.The present application is conducive to improving the efficiency of automobile parts nut welding.

The invention discloses a welding method and tool based on partition welding, and relates to the field of welding.The welding method comprises the following steps that a supporting tool is placed on a first workpiece, the axis of the first workpiece and the axis of a second workpiece are positioned and locked through the supporting tool, and an annular welding seam is formed; asymmetric spot welding is adopted for primary welding of the annular welding seam, the annular welding seam is divided into a plurality of sections in the circumferential direction, then interval welding is adopted for welding the sections in sequence, and the annular welding seam is in a discontinuous closed state; and after welding of the interval sections is completed, the non-welded sections in the annular weld joint are subjected to closed welding so as to complete overall welding, then locking of the supporting tool is relieved, and an overall workpiece is obtained. According to the method, adaptation to clamping state differences is achieved through staged control in the welding process, the first workpiece and the second workpiece are in a controllable connection state all the time in the welding process, and the problems of uneven welding seam forming, welding seam deviation, size precision reduction and the like are effectively solved.

The invention provides an optics-based AI electrode terminal detection system, which comprises an industrial grade light source, a visual camera, a multispectral fusion detection module, AI active learning image processing software and a programmable logic controller (PLC), and realizes intelligent detection of electrode cap grinding quality through signal interaction with a spot welding robot. The system utilizes a deep learning convolutional neural network (CNN) model to carry out feature extraction and defect identification on an acquired high-resolution image, outputs a detection result and feeds back the detection result to a robot, so that automatic judgment and grinding closed-loop control are realized. The problems that existing electrode grinding detection depends on empty gun resistance measurement, the false alarm rate is high, and interference of the equipment state is large can be effectively solved, electrode grinding quality real-time monitoring and data traceability are achieved, and the welding quality and the production line starting rate are greatly improved.

1. Name of the designed product: Six-axis industrial robot (large load). 2. Use of the designed product: Used in load carrying, spot welding, unstacking, etc. industrial scenes. 3. Design points of the designed product: in shape. 4. Pictures or photos that best show the design points: perspective view 1.

This invention relates to a welding method for the cylindrical body of a stainless steel composite plate equipment, comprising: 1) cutting a V-shaped bevel into the cylindrical body; 2) tack welding the pre-existing weld gaps using a double-gun TIG welding method; 3) longitudinal welding employing a three-layer welding process: the first layer is completed in one pass using a double-gun TIG welding method; the middle layer is completed in one pass using manual arc welding; and the third layer is completed in one pass using manual arc welding; 4) transverse welding employing a three-layer welding process: the first layer is completed in one pass using a double-gun TIG welding method; the middle layer is completed in one pass using manual arc welding; and the third layer is completed using multiple passes of manual arc welding for a final weld finish. This invention not only improves welding efficiency but also produces excellent weld quality, easily meeting the relevant requirements of drawings and specifications.

An aspect of the present invention relates to a cold-rolled steel plate for hot forming, which is excellent in corrosion-resistance and spot-weldability, contains, by weight %, C: 0.1-0.4%, Si: 0.5-2.0%, Mn: 0.01-4.0%, Al: 0.001-0.4%, P: 0.001-0.05%, S: 0.0001-0.02%, Cr: 0.5% to less than 3.0%, N: 0.001-0.02%, and a balance of Fe and inevitable impurities, satisfying formula (1) below, and includes an Si amorphous oxidation layer continuously or discontinuously formed at a thickness of 1 nm-100 nm on the surface thereof. Formula (1): 1.4≤0.4*Cr+Si≤3.2 (wherein element symbols denote measurements of respective element contents by weight %).

The application discloses a kind of repair tool and method for complex microwave assembly bonding point damage, the repair tool includes: first base, and multiple groups of L-shaped support and linear support;The microwave assembly is installed on multiple linear supports;The linear support is installed on the L-shaped support and the installation height and angle of the linear support are adjustable relative to L-shaped support;The L-shaped support is installed on the first base;The application can realize the economic, efficient rework of complex microwave assembly bonding point damage, and the bonding point is repaired by micro-resistance spot welding to avoid the scrapping of box or chip caused by bonding point damage, reduce the multiple heating in traditional repair process, reduce the repair process, shorten the repair time.

The utility model discloses an energy storage box lateral corrugated plate welding device, and belongs to the technical field of welding devices.The energy storage box lateral corrugated plate welding device comprises a plurality of racks, conveying belts are arranged in the racks in parallel, a bottom plate is fixedly welded between every two adjacent racks, and a fixing frame is fixedly installed on one side of the upper surface of each bottom plate; a rotating frame is rotatably mounted in the fixing frame, a hydraulic telescopic rod is arranged between the rotating frame and the bottom plate, and a cross beam is fixedly mounted on the side wall of the rotating frame; when a corrugated plate and a square pipe are flatly laid on the rack, the corrugated plate and the square pipe are preliminarily fixed by spot welding the corrugated plate and welding points at the protruding positions of the corrugated plate and the outer wall of the square pipe together, then a hydraulic telescopic rod is started, a rotating frame is pushed to rotate to erect a containing frame, and therefore the corrugated plate is driven to be erected, welding is more convenient, and the effect is better; and the square pipe and the corrugated plate are clamped and fixed by arranging the first clamping block and the second clamping block, and the corrugated plate is prevented from falling in the erecting process.