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74results about How to "Improve stitching accuracy" patented technology
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Strip-shaped point cloud splicing method based on normal vector similarity
PendingCN119152155Areduce computing costreduce complexityImage enhancementImage analysisAlgorithmPrincipal component analysis
The invention relates to a three-dimensional point cloud processing method, in particular to a strip-shaped point cloud splicing method based on normal vector similarity, and mainly solves the technical problems that the precision and reliability of a traditional point cloud splicing method cannot be guaranteed, the splicing process is relatively complex, the calculation cost is relatively high and the like. The method comprises the following steps of: 1, respectively acquiring two adjacent groups of original point cloud data with overlapped parts through a rotary camera; (2) obtaining a normal vector of each point in the overlapped part data by using a principal component analysis method, and further extracting feature points to obtain a feature point set; 3, performing calculation by adopting a principal component analysis method to obtain initial transformation of the target point cloud; 4, performing point cloud registration to obtain optimal rigid body transformation of original point cloud data corresponding to the target point cloud; and (5) according to the optimal rigid body transformation, alignment of overlapped parts of two adjacent groups of original point cloud data is completed, so that point cloud splicing is realized. According to the method, the calculation cost is effectively reduced, and the splicing precision is relatively high.
Owner:XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI
Preparation method of casting with complex pipe cavity and mold
ActiveCN119657827AGuaranteed dimensional accuracyCooperate accuratelyFoundry mouldsFoundry coresMechanical engineeringCasting
The invention relates to the technical field of metal casting, in particular to a preparation method of a casting with a complex pipe cavity and a mold, and the preparation method comprises the steps of mold core preparation, wax mold design, basic wax mold preparation, integral wax mold preparation, mold shell preparation and smelting and pouring. The basic wax mold preparation comprises the step of designing a plurality of block wax molds according to a casting pipe cavity structure; the whole wax mold preparation comprises the steps that a mold core and a plurality of block wax molds are combined and assembled through a splicing tool, so that the mold core is arranged in a multi-angle special-shaped pipe cavity defined by the block wax molds, and a whole wax mold is obtained; wherein partial areas of at least partial pipe bodies of the mold core are the same as the inner diameter of the multi-angle special-shaped pipe cavities in the corresponding positions so as to be precisely matched, and the rest partial areas of at least partial pipe bodies are arranged in the multi-angle special-shaped pipe cavities in a suspended mode. By means of the preparation method, it can be guaranteed that the block wax mold is accurately matched with the mold core, and the size precision of an inner cavity of a later casting can be guaranteed through the size precision of the mold core.
Owner:BAIMTEC MATERIAL CO LTD
Image reading method and device based on image splicing technology and related assembly
PendingCN119094910AImprove reading speedImprove stitching accuracyGeometric image transformationEnergy efficient computingRadiologyNuclear medicine
The invention discloses an image reading method and device based on an image splicing technology and a related component, and the method comprises the steps: carrying out the local image collection of a target object according to a preset index, and obtaining a local image sequence; acquiring splicing information of each local image in the local image sequence, and splicing and fusing all the local images into a global image according to the splicing information; constructing an image pyramid based on the global image; acquiring historical interaction data of a user, evaluating a reading probability of pixels in an adjacent range in the image pyramid according to the historical reading data, and calculating a prediction reading coefficient of an adjacent image layer of each image layer according to the reading probability; and pre-loading the image of each image layer in the image pyramid according to the predicted reading coefficient, and reading and rendering the pre-loaded image in response to an interaction instruction of a user. According to the invention, the image reading efficiency and precision can be improved.
Owner:SHENYAN ARTIFICIAL INTELLIGENCE TECH (SHENZHEN) CO LTD
Multi-frame three-dimensional point cloud splicing measurement method and device for high-temperature environment profile steel production and medium
PendingCN119313624AGuaranteed Quality ControlHigh precisionImage enhancementImage analysisComputational sciencePoint cloud
The invention belongs to the technical field of industrial measurement, and particularly discloses a multi-frame three-dimensional point cloud splicing measurement method and device for high-temperature environment profile steel production and a medium. The method disclosed by the invention comprises the following steps: firstly, acquiring three-dimensional point cloud data of the profile steel surface through a line laser scanner; then, denoising and normalization preprocessing operation is carried out on the three-dimensional point cloud data; thirdly, splicing the three-dimensional point cloud data by using an improved ICP (Inductively Coupled Plasma) algorithm, and carrying out Laplace smoothing and normal vector homogenization processing on the spliced three-dimensional point cloud data; thirdly, performing profile steel edge fitting on the spliced data; and finally, calculating the geometric dimension of the profile steel after edge fitting. According to the invention, the precision of point cloud splicing and the stability of a measurement result are greatly improved. The method can be widely applied to dimension measurement of the profile steel in the high-temperature environment.
Owner:HEBEI ELECTROMECHANICAL INTEGRATION PILOT BASE CO LTD
Image splicing method, device and system for hundred million-level pixel fusion video
PendingCN119094809AImprove stitching accuracyImprove image qualityTelevision system detailsInternal combustion piston enginesImaging qualityVideo image
The invention relates to an image splicing method and device for a hundred-million-level pixel fusion video, a hundred-million-level pixel calculation imaging system, computer equipment and a storage medium. The method comprises the following steps: acquiring multiple paths of local videos shot by an array camera, and detecting whether an overlapping region of a current frame of local video image contains a target object or not; under the condition that the overlapping area of the local video image of the current frame contains the target object, according to the object distance ratio of the object distance of the target object to the background object distance of the overlapping area, the initial homography transformation matrix of the sub-camera is updated, and a target homography transformation matrix matched with the object distance of the target object is obtained; performing image transformation on the current frame local video image based on the target homography transformation matrix to obtain a current frame transformation image corresponding to the sub-camera; and splicing and fusing the current frame transformation images corresponding to the sub-cameras to obtain a current frame fused video image. By adopting the method, the splicing accuracy and the imaging quality of the fused video image can be improved.
Owner:SUZHOU YIJI INTELLIGENT TECH CO LTD
A video image stitching method and system based on feature matching
ActiveCN119048343Bhigh speedImprove stitching accuracyImage enhancementImage analysisDigital videoRadiology
The present invention relates to a method and system for video image splicing based on feature matching, and belongs to the field of digital video technology. The method comprises: obtaining a real-time video stream and a reference image and performing multi-scale detection to obtain feature points of the video stream image and the reference image; performing feature matching on the feature points to obtain feature matching points; calculating transformation model parameters according to the feature matching points, and projecting and changing the video stream image through the transformation model to obtain a registered image; planning stitching lines in overlapping areas through energy values of the registered images; updating stitching lines in video images by detecting moving foreground objects; fusing images within a fixed width range of stitching lines, and adaptively adjusting the fusion area through color difference. The optimization accelerates the feature point detection and matching process, and solves the problem of artifacts in the image splicing process.
Owner:SHANGHAI FUKAN TECH CO LTD
Multi-probe lithographic apparatus and lithographic method
PendingCN119644672AImprove stitching accuracyMeet speed requirementsPhotomechanical exposure apparatusMicrolithography exposure apparatusGraphicsSingle exposure
The invention provides a multi-probe lithographic apparatus and a lithographic method, the multi-probe lithographic apparatus comprises a plurality of exposure unit groups capable of independently moving relative to each other, and each exposure unit group comprises one or more exposure units. The photoetching method comprises the following steps: dividing a pattern to be photoetched into a plurality of sub-patterns, wherein each sub-pattern corresponds to a writing field of a single exposure unit; determining an exposure sequence of the plurality of sub-graphs, the exposure sequence indicating an exposure unit for executing exposure of each sub-graph and a moving sequence of each exposure unit, and the graph to be photoetched is simultaneously photoetched by at least the exposure units in the two exposure unit groups, the distance between any two adjacent exposure unit groups in the plurality of exposure unit groups is greater than the size of a writing field of a single exposure unit; initializing the relative position of each exposure unit group in the plurality of exposure unit groups according to the exposure sequence; and performing exposure of the image to be photoetched according to the exposure sequence.
Owner:PARCAN NANOTECH CO LTD
Two-splicing type silicon rod splicing device
ActiveCN222628253UImprove splicing efficiencyImprove stitching accuracyFinal product manufactureWorking accessoriesVisual inspectionStructural engineering
The utility model relates to the technical field of silicon rod processing, and particularly discloses a two-splicing type silicon rod splicing device. The two-splicing type silicon rod splicing device comprises a base, a placing table is arranged on the base, and a supporting block and a first positioning assembly located on one side of the supporting block are arranged on the top face of the placing table; a sliding seat, a visual inspection mechanism and a second positioning assembly arranged on the sliding seat are arranged on the other side of the supporting block, and the sliding seat is in sliding connection with the base and is driven by a first driving mechanism to move towards or away from the placing table; the second positioning assembly is connected with a lifting driving piece for driving the second positioning assembly to move up and down relative to the sliding seat; the visual detection mechanism is used for detecting the width of the abutted seam between the two silicon rods; a side pushing mechanism is arranged at one end of the supporting block and pushes one silicon rod to move towards the other silicon rod in the length direction. According to the two-splicing type silicon rod splicing device, two silicon rods can be automatically spliced, the splicing efficiency is high, and the splicing precision is high.
Owner:HUAFANGXIN INTELLIGENT TECH (JIANGSU) CO LTD
Unfolding type circle splicing mechanism
ActiveCN222582234UImprove stitching accuracySave human resourcesManufacturing stator/rotor bodiesStructural engineeringMechanical engineering
An unfolded circle splicing mechanism comprises a support, at least two driving assemblies arranged on the support, a plurality of transmission assemblies arranged on the driving assemblies, a plurality of locking assemblies arranged on one sides of the transmission assemblies respectively, and a pressing cylinder arranged on one side of the locking assemblies. The transmission assembly comprises a first connecting rod, a second connecting rod correspondingly arranged on one side of the first connecting rod, a third connecting rod rotationally connected with the first connecting rod, a fourth connecting rod arranged on one side of the third connecting rod and a fifth connecting rod arranged on one side of the fourth connecting rod. The locking assembly comprises a containing block and a clamping strip rotationally connected with the containing block, and the unfolded circle splicing mechanism drives the transmission assembly to swing through the driving assembly and drives the locking assembly to swing. The mechanism is high in splicing precision, capable of saving manpower resources and suitable for flow line production.
Owner:TANAC AUTOMATION
LED box body with protection function
ActiveCN224290291Uavoid damageeasy maintenanceCircuit arrangements on support structuresCasings/cabinets/drawers detailsStructural engineeringMechanical engineering
The utility model provides a light-emitting diode (LED) box body with a protection function, which belongs to the technical field of LEDs and comprises a box body made of aluminum materials. A first boss and a second boss are arranged on the edges of the two sides of the box body respectively, a lock catch device is integrated on the first boss, and a lock hole matched with the lock catch device is formed in the second boss. The rear cover of the box body adopts a buckle type connecting structure; protection corners are arranged at the four corners of the box body, damping rods and springs are arranged on the protection corners, and the damping rods are sleeved with the springs. The box body is also provided with a wire buckle. A handle is arranged on the box body and connected with the box body through a hinge mechanism. When the device is used, a user can quickly open or close the rear cover through a buckle type connecting structure adopted on the rear cover, namely at least two groups of symmetrically distributed buckles are clamped in the clamping grooves of the box body, so that the user can more conveniently and quickly maintain, overhaul or upgrade equipment in the box body, and the maintainability of the device is improved.
Owner:SHENZHEN YUNDING OPTOELECTRONICS TECHNOLOGY CO LTD
Building road and bridge pouring construction technology and device
InactiveCN121853441AImprove sealingSolve the problem of slurry leakageClimate change adaptationBridge erection/assemblyArchitectural engineeringHoneycomb
The invention discloses a building road and bridge pouring construction process and device. The building road and bridge pouring construction device comprises a plurality of road and bridge pouring formwork bodies which are transversely spliced together. Each splicing structure is arranged between every two adjacent road and bridge pouring formwork bodies and comprises a splicing block fixed to the surface of one side of the corresponding road and bridge pouring formwork body, a splicing groove formed in the surface of the other side of the corresponding road and bridge pouring formwork body and corresponding to the splicing block, and an outer side type locking structure arranged between the splicing block and the splicing groove; each sealing structure is arranged between every two adjacent road and bridge pouring template main bodies; according to the building road and bridge pouring construction technology and device, through the innovative splicing structure and sealing design, it is avoided that penetrating type screw holes are formed in the splicing positions of the formworks, the problems that concrete leaks from the screw holes and slurry leaks in the pouring process are fundamentally solved, the defects of honeycombs, pitted surfaces and the like on the surface of the concrete are effectively prevented, and the construction quality is improved. The appearance quality of the road and bridge structure is remarkably improved, the road and bridge structure is smoother and more attractive, and the sealing performance of the formwork is enhanced.
Owner:陈涛
Three-dimensional model splicing method based on body-body spatial relationship
ActiveCN119152161AImprove stitching accuracyImage analysisCharacter and pattern recognitionAlgorithmModel set
The invention discloses a three-dimensional model splicing method based on a body-body spatial relationship, which comprises the following steps of: selecting a plurality of geometry models in a geometry model set for splicing, calculating geometric distances among the geometry models, judging whether the geometric distances are smaller than a first threshold value or not, and if the geometric distances are smaller than the first threshold value and greater than 0, determining that the geometry models are spliced. If the geometric distance is smaller than a first threshold value and smaller than 0, the geometric models are spliced according to the areas of the two faces, needing to be spliced, of the geometric models to obtain a three-dimensional model, and if the geometric distance is smaller than the first threshold value and smaller than 0, the geometric models are spliced according to the volumes of the geometric models to obtain the three-dimensional model. According to the method, the three-dimensional models are spliced according to the spatial relationship among the three-dimensional models, so that the splicing precision of the three-dimensional models is improved.
Owner:GUANGDONG POWER GRID CO LTD
Medical suture locking device
This utility model discloses a medical suture locking device and its usage method, aiming to solve problems such as complex suturing operations, uneven tension, and difficulty in synchronous adjustment of multiple sutures in existing technologies. The device consists of a clamping shell, clamping latches, a locking mechanism, a spring-loaded mechanism, and medical sutures. Through a socket-type connection and a sliding rail groove structure, it achieves precise suture fixation and tension control. The spring-loaded mechanism design ensures that the clamping latches automatically spring back to the closed state, facilitating rapid suture adjustment; the locking mechanism, in conjunction with the limiting groove structure, effectively prevents latch displacement and suture loosening. The device is compatible with various suture specifications, and the optimized tooth shape enhances the fixing force. Compared with traditional technologies, this utility model is simple to operate, has stable performance, significantly improves surgical efficiency and safety, and is particularly suitable for high-precision surgeries such as valve repair, providing an ideal solution for surgical procedures.
Owner:BEIJING MED ZENITH MEDICAL SCI CORP LTD
Microsphere image stitching method and device, terminal equipment and computer program product
PendingCN121981895ASmall stitching accuracyreduce mistakesImage enhancementImage analysisImaging processingComputer graphics (images)
The invention is suitable for the technical field of image processing, and provides a microsphere image splicing method and device, terminal equipment and a computer program product, and the method comprises the steps: carrying out the superposition of channel images collected at the same position of a microsphere in each channel of a specified round, and obtaining a microsphere small image corresponding to each position; the two microsphere small graphs at any adjacent positions have an overlapping region with a set proportion; on the basis of a preset sequence and the overlapping areas, splicing the microsphere small images in sequence to obtain a complete image corresponding to a specified round; after each time of splicing is completed, recording the reference position of the spliced small image in the new canvas after each time of splicing is completed; and on the basis of the reference position of each microsphere small image in the complete image, splicing the channel images of different positions of each channel of each round to obtain a composite image of each channel of each round. According to the invention, high-precision and high-efficiency alignment of cross-round and multi-channel panoramic images can be realized, and error propagation can be effectively inhibited.
Owner:LEAD HEALTHCARE TECHNOLOGY (GUANGZHOU) CO LTD
Multifunctional scanning rod for temporary denture
PendingCN122498950APrecise control of locking torqueAvoid overload damage
The application discloses a multifunctional scanning rod for temporary dentures and relates to the technical field of oral implantation and repair. The scanning rod comprises a shell, an expansion sleeve, an inner screw, a threaded sleeve and a reference rod. An assembly hole is arranged in the shell and penetrates in the axial direction, a fixed part of the expansion sleeve is fixed in the assembly hole, and an expansion part is surrounded by a plurality of elastic expansion plates and is gathered to the axial line in a natural state. The inner screw has an outer threaded section and a distraction section, the threaded sleeve is internally provided with a first reverse conical insertion hole and a second insertion hole with an inner thread, and the outer periphery of the threaded sleeve is provided with a first outer thread and a second outer thread with different pitches. The outer threaded section of the inner screw is connected with the second insertion hole, and the distraction section is located in the expansion part. The rod part of the reference rod is threadedly connected with an inner mounting hole of the inner screw. When the reference rod is rotated, the distraction section radially expands the expansion plates. The scanning rod has adjustable locking force, high connection rigidity and can significantly improve the reliability of in-mouth scanning data.
Owner:BESTCO (SUZHOU) MEDICAL TECH CO LTD
Welding device for steel structure production
ActiveCN119426892AImprove welding efficiencyno manual operationWelding/cutting auxillary devicesAuxillary welding devicesWeldingManufacturing engineering
The invention relates to the technical field of steel structure welding, and discloses a welding device for steel structure production, the welding device comprises a mounting table and a mounting ring fixedly connected to the mounting table, and a transmission groove is formed in the top of the mounting ring; according to the welding device for steel structure production, the transverse connecting rods of the frame are accurately placed into the positioning and fixing mechanism through the welding feeding mechanism, the connecting rods are positioned and fixed through the positioning and fixing mechanism, the welding feeding and splicing mechanism is arranged in the mounting groove, and the welding feeding and splicing mechanism is used for automatically feeding and splicing the connecting rods of the frame. The welding mechanism is used for welding and fixing the spliced frame, then the vertical connecting rod is accurately placed on the welded forming frame, then the welding mechanism is used for automatically welding the vertical connecting rod, and the steps are repeated in sequence, so that automatic splicing and welding of the steel structure frame are implemented, manual operation is not needed, and the welding efficiency is improved. And the welding efficiency of the steel structure frame is greatly improved.
Owner:JIANGSU XIANFENG GREEN BUILDING TECH CO LTD
Method for generating a cross-scale large-scale electromagnetic surface mesh with periodic fine features
ActiveCN120951538BAvoid topology errorsimprove consistencyDesign optimisation/simulationSpecial data processing applicationsTarget surfaceGeometric modeling
The application discloses a cross-scale large-scale electromagnetic surface grid generation method with periodic fine features, comprising the following steps: reading a cross-scale electromagnetic geometric model with periodic fine features, setting a replication direction and a number; setting a periodic boundary condition of the electromagnetic geometric model, determining a source surface and a target surface of the replication direction, extracting a boundary line, and establishing a mapping relationship between the source surface, the target surface and the boundary line; discretizing the electromagnetic geometric model to generate a discrete background triangular grid; generating a size field of the overall geometry according to the periodic fine features and the cross-scale features of the electromagnetic geometric model; generating and merging surface grids of the source surface, the target surface and the remaining surfaces according to the discrete background triangular grid and the size field and the mapping relationship; and batch replicating and merging the surface grids according to the replication direction and the number to generate a cross-scale large-scale electromagnetic surface grid with periodic fine features.
Owner:ZHEJIANG UNIV
Concrete building module
ActiveCN222183693UImprove stitching accuracyImprove connection strengthBuilding constructionsArchitectural engineeringWall plate
The utility model provides a concrete building module. The concrete building module comprises an enclosing wall, a cover plate and a fastener, wherein the cover plates are connected to the top and the bottom of the enclosing wall through fasteners. The enclosing wall comprises a plurality of wallboards, and mounting holes are formed in the tops and the bottoms of the wallboards. Transverse keels and connecting nuts are arranged in the wallboards, and the connecting nuts are connected to the transverse keels and located in the mounting holes. A through fixing hole is formed in the cover plate, and when the cover plate is installed on the enclosing wall, the fixing hole can be aligned with an installation hole in the wall plate, so that the fastener can be arranged in the fixing hole and the fixing hole in a penetrating mode, and the cover plate is fastened to the enclosing wall. The wallboards can be prefabricated according to actual requirements, and a plurality of wallboards can be spliced into an enclosing wall according to requirements, so that the application range of the building module is widened. The connecting nuts on the wallboards are mounted on the transverse keels, and the fasteners are connected to the connecting nuts through the fixing holes and the mounting holes, so that the splicing precision and the connecting strength of the cover plate and the wallboards can be improved.
Owner:CIMC MODULAR BUILDING SYST HLDG CO LTD +2
Universal primers for the complete sequence of mitochondrial genome of the family Betyphaidae and amplification method and application thereof
ActiveCN118374603Beasy accessavoid interferenceMicrobiological testing/measurementDNA/RNA fragmentationBiotechnologyZooid
The present invention discloses universal primers for the complete sequence of mitochondrial genomes of Silphidae insects and an amplification method and application thereof. By dividing the mitochondrial genome into 6 mutually overlapping fragments, performing common PCR amplification, Sanger sequencing and sequence splicing, the complete sequence information of the mitochondrial genomes of Silphidae insects can be quickly obtained. The invention has low requirements on operating instruments and analysis equipment, is easy to implement, requires a small number of primer pairs, and the complete sequence of the entire mitochondrial genome can be obtained from the total DNA of a single individual, thus avoiding interference from genomic DNA of multiple individuals. The invention has been verified in the amplification of the mitochondrial genomes of 5 species of Silphidae insects, has important significance for obtaining more complete mitochondrial sequences of Silphidae insects, further inferring the kinship between the genera of Silphidae and the phylogenetic relationship between the families of the superfamily Paederoidea, and also provides a reference for studying the evolution and phylogenetic relationship of the suborder Polyphaga.
Owner:QINGHAI NORMAL UNIV
Modularized 3D printing decoration component rapid splicing structure
ActiveCN224134120Uquick stitchingImprove construction efficiencyCovering/liningsAdditive manufacturing apparatusAdhesive glueStructural engineering
Owner:RUIDU DESIGN GRP CO LTD
Automatic material roll conveying device and automatic material roll conveying method
The present invention provides an automatic material roll conveying device, comprising a supporting main frame, a feeding mechanism, a material discharge mechanism, a conveying mechanism and a control device. The supporting main frame comprises a supporting base and a supporting side frame, and a plurality of material replenishing stations are arranged on the supporting side frame, and a single roll loading station is arranged at the rear end; the conveying mechanism comprises a splicing workbench installed at the rear end of the supporting main frame, a front conveying mechanism installed at the front end of the splicing workbench, a rear conveying mechanism at the rear end, and a servo sewing mechanism, a first detector and a second detector arranged therebetween. When the first detector detects that the length of the roll tail reaches a preset length, the front conveying roller and the rear conveying roller stop rotating; the feeding mechanism moves horizontally and equidistantly to the single roll loading station by one station to feed the material roll into the single roll loading station, and resets; the first servo drive motor drives the material roll to rotate. A method for automatic material roll conveying is also provided. The present invention significantly reduces labor costs and significantly improves sewing accuracy and production efficiency.
Owner:YUANSHENG HUFANG (ZHEJIANG) CONSTR TECH CO LTD
A prefabricated cabin and substation for splicing upper and lower layers of a stereoscopic station
ActiveCN115241784BImprove stitching accuracyImprove splicing efficiencySubstation/switching arrangement casingsDistribution substations
The present invention relates to a prefabricated cabin and transformer substation for splicing upper and lower layers of a stereoscopic station, comprising cabins of more than two layers and mortise and tenon assemblies, wherein the cabins of more than two layers include an upper cabin and a lower cabin; the mortise and tenon assemblies include tenon components and mortise structures, a first mounting platform is provided on the upper base, a second mounting platform is provided on the top frame, the tenon components are provided on the first mounting platform or the second mounting platform, and the mortise structures are correspondingly provided on the second mounting platform or the first mounting platform; the upper cabin is installed on the lower cabin through the cooperation of the tenon components and the mortise structures, and the tenon components are provided with a guide portion for guiding the mortise structures. Different from the prior art, the present invention can effectively improve the splicing accuracy, improve the splicing efficiency, reduce the difficulty of cabin splicing, save costs, and reduce cabin splicing time and labor costs.
Owner:CEEPOWER (FUQING) CO LTD +1
Automatic splicing device for flange plates of cylindrical power transmission tower
PendingCN119589194AQuality assuranceRealize automated productionWelding/cutting auxillary devicesAuxillary welding devicesTransmission towerElectric machinery
The invention discloses an automatic splicing device for a flange plate of a cylindrical power transmission tower, which is characterized in that a temporary fixing plate A feeding device, a temporary fixing strip feeding device, a metal film feeding device and a temporary fixing plate B feeding device are sequentially distributed on the outer side of a splicing table around the splicing table; a flange unit plate feeding device is further arranged on the outer side of the splicing table and located between the temporary fixing plate B feeding device and the temporary fixing plate A feeding device, the splicing table comprises an annular fixing table, an annular rotary table is coaxially arranged on the inner side of the annular fixing table in a rotating mode, the annular rotary table is driven by a driving motor, and a stand column is arranged in a center hole of the annular rotary table. A welding device A, a welding device B, a pressing device and a welding device C are correspondingly arranged on the side wall of the top of the stand column. According to the structure, the automatic splicing device for the cylindrical power transmission tower flange plates achieves automatic production of splicing the flange plates through the flange unit plates, the splicing efficiency is improved, and the quality of follow-up flange plate full welding is guaranteed.
Owner:JIANGSU FLIGHT ELECTRIC EQUIP MFG
Preparation method of high-precision wax mold with pipe cavity and mold
ActiveCN119634668Aavoid assemblyReduced precision requirementsFoundry mouldsFoundry coresMechanical engineeringCasting
The invention relates to the technical field of metal casting, in particular to a preparation method of a high-precision wax mold with a pipe cavity and a mold, and the preparation method sequentially comprises the following steps of mold core preparation, wax mold design, block wax mold preparation and block wax mold assembly. The wax mold design comprises the step of dividing a casting wax mold into a bottom wax mold, a rear wax mold and a front wax mold; the block wax mold splicing comprises the steps that a mold core, a bottom wax mold, a rear wax mold and a front wax mold are spliced through a splicing tool, the mold core is arranged in a multi-angle pipe cavity defined by a first pipeline groove, a second pipeline groove and a third pipeline groove, and an integral wax mold with the multi-angle pipe cavity is obtained; wherein the partial area of at least part of the pipe body of the mold core is the same as the inner diameter of the multi-angle pipe cavity at the corresponding position so as to be precisely matched, and the other partial area of the mold core is arranged in the multi-angle pipe cavity in a suspended mode. By means of the preparation method, it can be guaranteed that the block wax mold is accurately matched with the mold core, and the size precision of an inner cavity of a later casting can be guaranteed through the size precision of the mold core.
Owner:BAIMTEC MATERIAL CO LTD
Dynamic naked-eye panoramic all-digital immersive display device with lower tangent plane transverse cylinder
ActiveCN224217196UImprove immersionImprove experienceCasings/cabinets/drawers detailsIdentification meansLED displayMechanical engineering
The utility model relates to the technical field of naked eye display, in particular to a dynamic naked eye panoramic all-digital immersive display device with a transverse cylindrical lower section, which comprises a transverse cylindrical frame, a light-emitting diode (LED) display screen module, a rectangular galvanized steel pipe and a fixing piece. The curvature radius of the rectangular galvanized steel pipe is matched with the diameter of the transverse cylindrical frame, and the rectangular galvanized steel pipe is distributed in the axial direction of the cylindrical frame and used for supporting the LED display screen module. U-shaped clamps arranged at the corners of the display screen are adopted as the fixing pieces and matched with strip-shaped clamping grooves in the inner sides of the galvanized steel pipes, connection stability is enhanced through built-in magnet pieces, rapid mounting and dismounting are facilitated, the equipment further comprises fixing frames arranged at the two ends of the transverse cylindrical frame in a sleeving mode, the overall structural strength is further improved, and the equipment is compact in structure, high in visual immersion sense and high in practicability. The method is suitable for scenes such as virtual reality, exhibition display and game experience, and high-quality naked eye panoramic dynamic image presentation is realized.
Owner:SHANGHAI YAHONG CULTURE COMMUNICATION CO LTD
Concrete slab hanging structure
ActiveCN222350012UAdjust flatnessImprove installation efficiencyWallsArchitectural engineeringCurtain wall
The utility model discloses a concrete slab hanging structure which comprises a concrete slab and a hanging part arranged on the outer side of the concrete slab, two concave parts are arranged on the surface of the concrete slab in a spaced mode, a plurality of bosses are arranged on the outer side faces of the two concave parts respectively, and the hanging part comprises a first transverse rod and a second transverse rod which are located on the upper side and the lower side of the concave parts respectively. A mounting frame is arranged between the first cross rod and the second cross rod and movably connected with the first cross rod and the second cross rod, a mounting cavity allowing the concave part to penetrate through is formed in the middle of the mounting frame, the mounting frame can be fixedly connected with the concrete slab through the boss, and a rotating device is arranged on the side, close to the mounting frame, of the second cross rod. When the concrete slab module is hung, the flatness of the curtain wall can be rapidly adjusted, the installation efficiency and the overall splicing precision are further improved, and the concrete slab module hanging device belongs to the field of building curtain walls.
Owner:GUANGDONG GOLDEN CURTAIN WALL ENGINEERING CO LTD
A prefabricated stand plate steel mould splicing and welding device
This invention belongs to the field of steel formwork processing technology, specifically a precast grandstand steel formwork splicing and welding device, including a welding fixture. A steel formwork is mounted on the welding fixture, and pressure strips are respectively provided on both sides of the top of the steel formwork. A first insertion sleeve is fixedly connected to each of the two pressure strips. A first bearing bracket is fixedly connected to each of the first insertion sleeves on the welding fixture, and a first combined sleeve is rotatably connected to each of the first bearing brackets. In this invention, a first hydraulic cylinder drives a linkage frame and a second double-sided gear, causing the pressure strips on both sides to apply equal downward pressure to the top of the steel formwork, avoiding template tilting or stress concentration caused by unilateral pressure. The downward pressure can be adjusted according to the steel formwork model to meet differentiated pre-pressing requirements. The mechanical transmission chain ensures uniform pressure distribution. Pre-pressing before welding effectively constrains the tendency for thermal deformation, providing a stable benchmark for subsequent welding.
Owner:青岛新世纪预制构件有限公司
Method for splicing large industrial module equipment
PendingCN121980840AAchieve millimeter-level precision controlEnsure structural stabilityAnalysing solids using sonic/ultrasonic/infrasonic wavesData processing applicationsPetrochemicalWelding defect
The invention discloses a method for splicing large-scale industrial module equipment, belongs to the technical field of large-scale industrial module construction, and aims to solve the problems of low splicing precision, poor quality control, weak tool universality and the like in the prior art. The method comprises the steps of module early-stage preparation, construction site arrangement, module hoisting and positioning, module splicing operation, quality inspection and acceptance, digital filing and the like. A module full life cycle database is established, a high-precision measurement control network is constructed, and an adjustable universal supporting tool and intelligent equipment are adopted, so that high-precision splicing of module butt joint unfitness smaller than or equal to 0.5 mm is achieved; bIM simulation, real-time monitoring and automatic welding technologies are combined, so that the defect rate of the welding seam is reduced to 1% or below. The device can adapt to heavy modules of 50-500 tons and 10-50 meters, the tool cost is reduced by 60% or above, the construction period is shortened by 40% or above, and the device is suitable for the high-precision requirement fields of the nuclear industry, the petrochemical industry and the like.
Owner:SHANGHAI LIBERT ENG TECH CO LTD
A method and apparatus for full-circumferential inkjet printing on a curved object surface and a storage medium
PendingCN122078067AEliminate splicing misalignmentEliminate cumulative errorsTypewritersPower drive mechanismsImaging processingComputer printing
This invention relates to the field of digital inkjet printing technology, specifically to a method, device, and storage medium for full-circumference inkjet printing on the surface of curved objects. The method includes calculating the total number of physical ink dots around the circumference of the curved object and the printer resolution; using image processing to precisely match the total number of pixels around the pattern, the total number of encoder signals, and the total number of physical ink dots to achieve seamless 360° splicing; for irregular curved surfaces, three-dimensional data is acquired through contour scanning, and the number of ink dots is dynamically adjusted based on the perimeter ratio to achieve adaptive dot-mapping printing. The printing device includes a clamping device, a printhead module, a crossbeam, a printhead, an encoder, and a control unit, adaptable to printing on the inner and outer surfaces of various curved objects. This invention offers advantages such as high splicing accuracy, stable image quality, wide surface adaptability, and strong industrial adaptability, effectively meeting the needs of small-batch flexible production and large-scale mass production.
Owner:HANGZHOU JIETENG DIGITAL TECHNOLOGY CO LTD
Real-time aerial image processing and intelligent mapping system based on deep learning
PendingCN119649239Aimprove accuracyImprove efficiencyImage enhancementDrawing from basic elementsDisaster monitoring3d topography
The invention relates to the technical field of image processing, in particular to a real-time aerial image processing and intelligent mapping system based on deep learning, which comprises an image acquisition module, a preprocessing module, a deep learning analysis module, an image splicing module, an intelligent mapping module and a data storage and management module. Multi-type sensor image data are collected in real time through an unmanned aerial vehicle, preprocessing and deep learning analysis are carried out, and target recognition, scene classification and object segmentation of images are achieved. And then, the system splices the plurality of images into a complete map through a feature point matching algorithm and a deep learning optimization algorithm, and generates a high-resolution two-dimensional map and a high-resolution three-dimensional terrain model according to different requirements. Meanwhile, the system supports real-time storage, management and encrypted transmission of data, and ensures the security and integrity of processed image data. According to the invention, the precision and efficiency of aerial image processing are significantly improved, and the method is suitable for complex scenes requiring real-time response, such as disaster monitoring and environmental protection.
Owner:SHANDONG HUICHUANG INFORMATION TECH CO LTD