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173results about How to "High precision requirements" patented technology
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Conceptual recommendation method based on large language model structure learning and knowledge representation
ActiveCN119322890AImprove robustnessimprove accuracySemantic analysisKnowledge representationDeep knowledgeLinguistic model
The invention discloses a concept recommendation method based on large language model structure learning and knowledge representation, and belongs to the field of concept recommendation. The method comprises the following steps: firstly, acquiring learning data and a concept knowledge graph of a student account in a learning process, and preprocessing the learning data and the concept knowledge graph; performing text coding on an enhanced text generated by the large language model by using a pre-training language model to obtain a final hidden vector of each concept, further constructing an enhanced concept knowledge graph, and pre-training a GraphGPS concept encoder based on the enhanced concept knowledge graph and a double-view cross graph contrast learning method; synthesizing education data by a TabDDPM model to pre-train a deep knowledge tracking model; and splicing the concept representation of question embedding, answer embedding and structure perception and the student knowledge state representation to form a final representation, further obtaining a coding sequence, pre-training a sequence coding model and finely adjusting a concept recommendation matrix, and finally forming a concept recommendation model for performing concept recommendation.
Owner:ZHEJIANG NORMAL UNIV
SQL (Structured Query Language) generation and error correction method based on multi-stage feedback
PendingCN119474129Aimprove accuracyGuaranteed accuracyDigital data information retrievalNon-redundant fault processingUser needsRound complexity
The invention provides an SQL (Structured Query Language) generation and error correction method based on multi-stage feedback, which comprises the following steps: S1, collecting user demands, and greatly improving the accuracy of generating SQL while keeping quick response by introducing an expert thinking model and by means of a mode of demand disassembly and task gradual combination, so that the user experience is improved; and it is ensured that effective query statements can be quickly generated in the face of simple or medium-complexity tasks. Common requirements can be efficiently processed, so that the query requirements of the user can be quickly met. And secondly, aiming at a task which is complicated or has a high-precision requirement, through a multi-round interaction and error correction mechanism, the accuracy of a generated result is ensured. When the SQL execution statement is generated for the first time, if an error occurs or a user is not satisfied, multiple rounds of error correction processes can be started, the SQL execution statement is corrected step by step, and finally high-precision output meeting the requirement is achieved. Through the double-link design, the speed and the accuracy are both considered, and the requirements in different scenes are met.
Owner:SHENZHEN LANYOU TECHNOLOGY CO LTD
Control method for adjusting tunneling posture of shield tunneling machine
ActiveCN119593770AImprove adaptabilityHigh precision requirementsTunnelsComplex mathematical operationsProportion integration differentiationAttitude control
The invention discloses a control method for adjusting the tunneling attitude of a shield tunneling machine, particularly relates to the field of attitude control of the shield tunneling machine, and aims to solve the problem that attitude deviation caused by underground environment change cannot be timely and effectively corrected in the tunneling process of the shield tunneling machine. The method comprises the following steps of: calculating membership degrees of horizontal deviation, vertical deviation and change rates of the horizontal deviation and the vertical deviation, extracting high-frequency and low-frequency characteristics, generating independent phase signals, and calculating a judgment coefficient by using a multi-dimensional data fusion and high-dimensional exponential integration method so as to dynamically adjust the weight of a fuzzy control rule base and realize adaptive optimization of PID (Proportion Integration Differentiation) gain parameters; a master control output signal is generated based on the updated PID parameters, the thrust of the partition oil cylinders is accurately adjusted, it is ensured that the posture of the shield tunneling machine is rapidly, accurately and stably adjusted under the complex environment condition, the control precision of the tunneling direction and the construction safety are improved, and the working efficiency is improved. And meanwhile, the overall posture correction capability of the shield tunneling machine is further enhanced through dynamic adjustment of the rolling angle.
Owner:CHINA RAILWAY SUNWARD ENG EQUIP CO LTD
Main shaft precision design evaluation method and system based on big data
ActiveCN119312504AHigh precision requirementsincrease profitGeometric CADDesign optimisation/simulationDesign planDesign methods
The invention relates to the technical field of mechanical spindle design, in particular to a spindle precision design evaluation method and system based on big data, and the method comprises the steps: constructing an original design scheme according to a spindle precision evaluation standard of a to-be-set spindle; establishing a scheme design database, retrieving a historical design scheme similar to the main shaft precision evaluation standard in the scheme design database, and generating an iterative calculation group; establishing a scheme iteration comparison model by taking the iteration calculation group as a reference and combining with the original design scheme, and generating an optimal design scheme for the to-be-set main shaft; and performing evaluation verification on the optimization design scheme according to the main shaft precision evaluation standard, and generating a main shaft design scheme based on an evaluation verification result. By means of the method, the problems that in a traditional spindle design method, data utilization is insufficient, the optimization capacity is limited, and evaluation lacks dynamics are effectively solved, the precision and efficiency of spindle design are remarkably improved, and the trial and error cost in the design process is reduced.
Owner:OKADA SEIKI DANYANG CO LTD
Tool for controlling elevation of induction plate of linear motor
ActiveCN222579140UHigh precision requirementsHigh precisionHeight/levelling measurementMechanical measuring arrangementsElectric machineClassical mechanics
The utility model discloses a tool for controlling the elevation of an induction plate of a linear motor, which comprises a cross beam and a measuring assembly, and a first positioning assembly and a second positioning assembly are respectively arranged at two ends of the cross beam, the measuring assembly comprises a sliding seat which is slidably installed on the cross beam and is used for measuring the transverse distance of the measuring points of the induction plate, and a caliper which is installed on the sliding seat and is used for measuring the vertical distance of the measuring points of the induction plate. Through the positioning assemblies arranged on the two sides of the cross beam and the measuring assembly moving on the cross beam, measurement of the transverse distance and the longitudinal distance of the measuring points of the induction plate is achieved, the high-precision requirement for height installation of the induction plate is met, the elevation control precision in the installation process of the induction plate is improved, the construction quality is improved, and the risk of construction rectification is reduced.
Owner:GUANGZHOU METRO GRP CO LTD +2
Method for processing quasi-continuous net-shaped reinforced titanium-based composite material thin-wall structure through cold spraying additive-hot pressing equal material
ActiveCN119640252ASolving difficult-to-prepare problemslow costAdditive manufacturing apparatusIncreasing energy efficiencyTitanium matrix compositesTitanium
The invention belongs to the technical field of titanium-based thin-wall component machining, and discloses a method for machining a high-temperature-resistant titanium-based thin-wall component through cold spraying additive-hot pressing and the like. A titanium-based layered gradient structure prefabricated blank is prepared mainly through a cold spraying method, and machining of the high-performance and high-temperature-resistant titanium-based thin-wall component is achieved in combination with a subsequent equal material technology. The processing and preparing process comprises the steps that the component content of the titanium-based composite powder is determined; preparing composite powder; carrying out cold spraying additive printing to obtain a layered gradient preformed thin-wall blank; and carrying out reaction hot pressing to form the high-temperature-resistant thin-wall component. By means of the method, high-production-efficiency, low-cost and high-performance manufacturing of the high-temperature-resistant layered gradient titanium-based composite material or the titanium-aluminum intermetallic compound thin-wall component can be achieved; the high-temperature-resistant thin-wall component with the maximum service temperature of 800 DEG C can be machined and prepared according to the target service temperature requirement, and customization of the service performance can be achieved according to the mechanical property requirement of the component.
Owner:SHANGHAI JIAOTONG UNIV
Manufacturing process of high-frequency and high-precision resistance device
InactiveCN119626693Aprecise size controlreduce sizeEnvelope/housing resistor manufactureResistor trimmingElectrical resistance and conductanceManufacturing technology
The invention relates to the technical field of resistor manufacturing, in particular to a manufacturing process of a high-frequency and high-precision resistor device. Comprising the following steps: S1, substrate molding: molding substrate material powder into a required substrate shape through pressing or a mold, and carrying out sintering molding; s2, depositing a conductive thin film: depositing a layer of extremely thin conductive thin film on the substrate, and manufacturing resistive layers with different thicknesses by using a nickel-chromium alloy material to adapt to various resistance values; s3, photoetching and etching: generating a pattern through photoetching or laser trimming, increasing a resistance path and calibrating a resistance value to ensure that the resistance value is within a design range; s4, adjusting a resistance value; s5, surface treatment; and S6, screening and packaging. According to the method, the precision and the performance are controlled through the steps of calibrating the resistance value in the technological process, accurately controlling the resistance pattern through laser energy and accurately controlling the size of the pattern, so that the final product can meet the requirements of high frequency and high precision.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Target material fixing device for vacuum coating machine
ActiveCN222574753UGuaranteed accurate fixationreduce displacementVacuum evaporation coatingSputtering coatingControl engineeringMachine
The utility model relates to a target material fixing device for a vacuum coating machine, relates to the technical field of vacuum coating, and aims at solving the problem that a traditional fixing device is poor in flexibility. The target material fixing device comprises a bottom frame, two fixing bases are arranged on the bottom frame and oppositely arranged on the bottom frame, and a target material fixing area is formed between the two fixing bases; a driving mechanism used for synchronously driving the two fixing seats is arranged on the bottom frame, the driving mechanism comprises a supporting plate, a bidirectional lead screw and a servo motor, the supporting plate is connected to the bottom frame, the bidirectional lead screw is rotationally connected to the supporting plate, the output end of the servo motor is connected to the end of the bidirectional lead screw, and the output end of the servo motor is connected to the end of the bidirectional lead screw. The two-way lead screw is provided with two threaded ends opposite in rotating direction, the two fixing seats are in threaded connection to the two threaded ends of the two-way lead screw respectively, each fixing seat is slidably connected to the supporting plate, and the bottom frame is further provided with a translation mechanism used for moving the position of a target material. The application has the effect of improving operation flexibility and adjustability.
Owner:SUZHOU BOZHI GOLDEN DIAMOND TECH CO LTD
Method and device for integrally forming diaphragm capsule of pressure accumulator
ActiveCN119259795AIncrease productivityimprove product qualitySurface oxidationStructural engineering
The invention provides an integral forming method and device for a pressure accumulator diaphragm capsule, and the method comprises the following steps: sleeving a movable female die into a pipe blank part, and adjusting the distance between the movable female die and a fixed female die; a high-pressure fluid medium is introduced through an internal flow channel of the connecting rod, and the pressure and loading time of the high-pressure medium are regulated by a pressure regulating device; the positions of the movable core head, the fixed sealing head, the pre-expansion limiting die and the movable female die are kept immovable, and the pressure regulation and control device is adjusted to unload the pressure of the high-pressure medium; the pre-expansion limiting die is separated in the radial direction and rotates to be separated from the pipe blank part; the movable female die moves in the axial direction to form a single waveform; the movable female die moves progressively in the axial direction, and the movable core head moves in the axial direction as well; and forming of a second waveform and a subsequent waveform is completed. According to the method, the defects of welding deformation, weld joint gouges, weld joint surface oxidation color, weld joint black spots and joint internal oxide inclusion caused by a traditional welding method are overcome, the quality control difficulty in the production process is reduced, and the production efficiency and the production quality of the diaphragm capsule are remarkably improved.
Owner:SHANGHAI AEROSPACE EQUIPMENTS MANUFACTURER CO LTD
Hydraulic straightening machine for power tower pole
PendingCN119304001AAutomate operationgood choiceMetal-working feeding devicesPositioning devicesHydraulic cylinderMetallic materials
The hydraulic straightening machine comprises a supporting plate, a straightening beam frame, a rounding groove base, an adjusting wheel assembly and a propelling telescopic driving assembly, the straightening beam frame is arranged on one side of the upper portion of the supporting plate, the propelling telescopic driving assembly is arranged on the other side of the upper portion of the supporting plate, and the adjusting wheel assembly is arranged in the middle of the supporting plate. A rounding groove base is arranged at the bottom of the straightening beam frame, a hydraulic cylinder is arranged at the top of the straightening beam frame, one side of the hydraulic cylinder communicates with a driving hydraulic pump, a straightening pressing block is arranged at the bottom of the hydraulic cylinder, and a tower rod is arranged between the propelling telescopic driving assembly and the rounding groove base. According to the hydraulic straightening machine for the power tower pole, the precision and efficiency of metal material machining are improved, and the hydraulic straightening machine has the advantages of being intelligent, modularized, efficient, capable of saving energy, wide in applicability and the like. And the development and progress of the metal material processing industry can be greatly promoted.
Owner:JIANGSU GUOHUA TUBE TOWER MFR
Clutch production monitoring method
PendingCN119457989Aimprove performanceImprove reliabilityMeasurement devicesMeasurement/indication equipmentsFailure rateMachine tool
The invention relates to the technical field of clutch production testing, in particular to a clutch production monitoring method, which comprises the following steps: determining all assembly parts of a single clutch and the size information of each part, determining the use type of each assembly part, acquiring raw materials of each assembly part, performing performance inspection on the raw materials, and recording a detection result; according to the size information of all the assembly parts, raw materials of all the assembly parts are machined, and meanwhile machine tool working parameters of a machining machine tool are detected; the edge of each assembled part is detected, the roughness degree is determined, and the machining abnormity type of the current assembled part is determined; determining a follow-up machining monitoring mode of the currently assembled part; according to the part abnormity tracing mode, tracing is carried out to determine part abnormity and exclude the part abnormity; by setting two sets of different machining qualification standards, the requirements under different use conditions are more accurately met, the overall performance and reliability of the clutch are improved, the failure rate is reduced, and the service life is prolonged.
Owner:QINGDAO CENTURY TAIYANG PRECISION CO LTD
U-shaped pipe automatic punching machine and U-shaped pipe punching machining method
PendingCN119608939AReduce downtimeavoid clampingPerforating toolsMetal-working feeding devicesPunchingStructural engineering
The invention relates to an automatic U-shaped pipe punching machine and a U-shaped pipe punching machining method. An automatic punching machine for U-shaped pipes comprises a punching assembly and a storage assembly, the storage assembly comprises a storage frame used for limiting translation of stored pipes to be machined, the storage frame forms a storage space, and a positioning assembly and the punching assembly are arranged on the side of the storage space. A discharging opening communicating with the storage space is formed in the lower end of the storage frame, the positioning assembly comprises a supporting block located on the side of the discharging opening, a first limiting block and a positioning block, and the supporting block moves to the discharging opening or is laterally away from the discharging opening under the action of a first driver; the first limiting block is far away from or close to the material storage space under the action of the second driver, and the positioning block is close to the material storage space and extends into the pipe to be machined or far away from the material storage space under the action of the third driver. The punching device has the advantages that the production efficiency can be improved, and the punching machining precision is guaranteed.
Owner:ZHEJIANG SHENGXUN IND & TRADE CO LTD
Impact jet flow double-layer micro-channel heat sink structure with fins and working method of impact jet flow double-layer micro-channel heat sink structure
ActiveCN119212321Aextended pathshorten the pathCooling/ventilation/heating modificationsConvection heatHeat sink
The invention provides an impact jet flow double-layer micro-channel heat sink structure with fins and a working method thereof, and belongs to the technical field of micro-channel enhanced heat dissipation, the impact jet flow double-layer micro-channel heat sink structure comprises an upper-layer micro-channel, a lower-layer micro-channel and a plurality of partition plates, the upper-layer micro-channel and the lower-layer micro-channel are connected through a middle layer, and the partition plates vertically penetrate through the upper-layer micro-channel and the lower-layer micro-channel; the upper-layer micro-channel comprises a heat sink top, a first inlet area is arranged on the heat sink top, a flow dividing area is arranged on the lower portion of the first inlet area, flow guiding areas are arranged on the two sides of the flow dividing area, a second inlet area and a third inlet area are arranged at ports of the two sides of the upper-layer micro-channel respectively, and fins are installed below the heat sink top. A confluence area is formed between the fins and the middle layer, the lower-layer micro-channel comprises a heat sink substrate, and outlet areas are arranged at ports of the two sides of the lower-layer micro-channel respectively; the heat exchanger has the characteristics of high efficiency, relatively uniform convective heat exchange performance, low energy dissipation and high overall heat exchange.
Owner:XI AN JIAOTONG UNIV
Intensity simulation test method, device, system and equipment for wind turbine generator test bench
ActiveCN119622998Areduce processinglower requirementDesign optimisation/simulationSpecial data processing applicationsControl theoryTurbine
The invention provides a strength simulation test method, device, system and equipment for a wind turbine generator test bench, and is applied to the technical field of simulation of wind turbine generator test benches. The method comprises the following steps: calling a strength calculation service corresponding to each structure sub-component to monitor load data of each structure sub-component transmitted by a field side of the wind turbine generator test bed in response to an obtained pre-stored overall stiffness matrix corresponding to each structure sub-component in the wind turbine generator test bed, carrying out strength simulation calculation based on the monitored load data of the structural sub-component and the overall rigidity matrix of the structural sub-component to obtain a strength test result of the structural sub-component; and sending the strength test result of each structural sub-component to a visual display side, so as to display the strength test result of each structural sub-component on the visual display side. The problems that in the strength simulation test process of the wind turbine generator set ground test bed, the requirement for hardware computing resources is high, and the real-time requirement under high precision cannot be met are solved.
Owner:FUZHOU BRANCH OF CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +1
Semantic live-action three-dimensional modeling method for urban building
ActiveCN119600608AHigh precision requirementsThree-dimensional object recognition3D modellingIntelligent cityRoad networks
The invention is applicable to the technical field of three-dimensional modeling, and provides a semantic live-action three-dimensional modeling method for urban buildings, which comprises the following steps: constructing a three-dimensional model of each building in a city according to OSM data of the city; determining a plurality of streetscape image sampling positions based on the road network data, and collecting streetscape image data in a plurality of directions at each streetscape image sampling position; obtaining building feature description information and a text information set of the streetscape image data, and determining a building function type corresponding to the streetscape image data according to the building feature description information, the text information set and a predefined building function description dictionary; and according to the determined building function type and the street scene image sampling position, assigning semantic description information to the three-dimensional model of each building in the city to obtain a semantic real scene three-dimensional model of each building in the city. According to the method, the building three-dimensional model with semantic description information can be constructed, so that the building three-dimensional model can meet the high-precision requirement of intelligent city application.
Owner:CENT SOUTH UNIV +1
Turbidded rock stratum thickness detection device for geological research
PendingCN119616390AAccurate acquisitionquality improvementConstructionsDrilling rodsRock coreClassical mechanics
The invention provides a turbidite rock stratum thickness detection device for geological research, and relates to the field of geological exploration and detection. The turbidite rock stratum thickness detection device for geological research comprises a base, a through hole is formed in the middle of the base, a first drilling rod is inserted into the base, a second drilling rod is installed at the top of the first drilling rod through two symmetrically-arranged connecting assemblies, and sliding grooves are symmetrically formed in the outer sides of the first drilling rod and the second drilling rod; a rotating assembly used for driving the first drilling rod to rotate in a reciprocating mode is arranged on the side, close to the through hole, of the top of the base, a pressing assembly used for driving the second drilling rod to move downwards is arranged on the top of the second drilling rod, and a pulling assembly used for pulling the first drilling rod to move upwards is arranged on the side, located on the rotating assembly, of the top of the base. The turbidite rock stratum is sampled in a drilling mode, a rock core sample can be extracted and analyzed, measurement is more convenient, the quality and accuracy of data are improved, and the high-precision requirements of geological research and engineering application are met.
Owner:THE FOURTH GEOLOGICAL EXPLORATION INST OF QINGHAI PROVINCE(KEY LAB OF SHALE GAS RESOURCES OF QINGHAI PROVINCE)
Horizontal grinding machine
PendingCN119260554AHigh precision requirementsGrinding carriagesGrinding drivesMechanical engineeringPhysics
The invention relates to a horizontal grinding machine. According to the horizontal grinding machine, a machine body comprises two supports which are opposite in the first direction and arranged in a spaced mode; the grinder is fixedly assembled on the displacement driving mechanism, the displacement driving mechanism is assembled on the two supports in a crossing mode, and the displacement driving mechanism is in sliding fit with the supports so that the displacement driving mechanism can drive the grinder to move in the second direction, and the displacement driving mechanism further drives the grinder to move in the third direction; the first direction, the second direction and the third direction are perpendicular to one another; the object placing rotary table mechanism is fixedly matched with the lathe bed and comprises an inclination angle adjusting part and a rotary object placing part, the rotary object placing part is assembled on the inclination angle adjusting part, the inclination angle adjusting part is used for adjusting the inclination angle of the rotary object placing part, and the rotary object placing part is used for placing a machined part so as to drive the machined part to rotate. According to the horizontal grinding machine, the effect that a machined part can be machined into various structural forms can be achieved, and meanwhile the requirement for high precision can be met.
Owner:湖南宇环精密制造有限公司
Pneumatic muscle driving joint force position control method and device based on fuzzy admittance and medium
PendingCN121973211APrecise Coordinated ControlPrecisely control movement trajectoriesProgramme-controlled manipulatorProgramme controlClosed loop feedbackControl engineering
The invention discloses a pneumatic muscle driving joint force position control method and device based on fuzzy admittance and a medium. According to the method, firstly, through dynamic adjustment of the fuzzy admittance model, accurate cooperative control over the joint position and the output force is effectively achieved; secondly, the self-adaptive capacity of the system to external disturbance is enhanced by monitoring the influence of the external disturbance on the joints in real time; and the fuzzy admittance model dynamically adjusts admittance parameters according to the data, so that the control requirements of force and position are balanced, and the system can still maintain a predetermined control effect under a disturbance condition. Finally, through closed-loop feedback control, in combination with real-time monitoring data and an expected control instruction, admittance parameters are continuously adjusted, and the stability and robustness of the system in a complex dynamic environment are enhanced.
Owner:CHINA JILIANG UNIV
Gas detection mechanism for water pump shell
ActiveCN222379278UAchieving air tightness requirementsReduce labor intensityDetection of fluid at leakage pointProcess engineeringAir tightness
The utility model relates to the technical field of automobile water pump shells, in particular to a gas detection mechanism for a water pump shell, which comprises a bearing plate, and a pressing device, a sealing device, a positioning device and a coding device which are respectively arranged on the bearing plate, the pressing device, the sealing device, the positioning device and the code printing device are arranged around the peripheral side of the fixing hole, a first airtight channel is formed in the pressing device, a second airtight channel is formed in the sealing device, and the first airtight channel is communicated with the second airtight channel. The first airtight channel and the second airtight channel are used for communicating the interior of the water pump shell with an airtight instrument. According to the air detection mechanism for the water pump shell, air tightness detection of the water pump shell can be achieved without visual judgment of an operator, the misjudgment problem is effectively avoided, and a product meets the high-precision requirement; manual participation steps are reduced, the labor intensity of workers is effectively reduced, and the production efficiency is further improved.
Owner:ZHAOQING HONDA FOUNDRY CO LTD
Precast beam pedestal template device with bottom die adjusting mechanism
InactiveCN119388547Ahigh degree of automationReduce manual operationsMouldsMould auxillary partsStructural engineeringMechanical engineering
The invention relates to the technical field of precast beam production, and discloses a precast beam pedestal template device with a bottom die adjusting mechanism, side frames are oppositely distributed, a die holder is arranged between the side frames, and a die cavity and a die bottom plate are arranged in the die holder. And a plurality of electric cylinder seats are arranged at the lower corners of the die bottom plate and are fixed at the bottom of the die holder, and lifting electric cylinders are mounted on the electric cylinder seats. The output end of the lifting electric cylinder is connected with a lifting rod which is connected with the mold bottom plate. Through the structural design that the electric cylinder drives the lifting rod and the upper push rod, the length of the bottom die and the transverse and longitudinal slope values of the wedge block are accurately adjusted, and therefore the size precision and the structural performance of the precast beam are ensured. The device is high in automation degree, manual operation is reduced, production efficiency is improved, and meanwhile labor intensity is reduced. The device is simple in structure, convenient to operate and high in response speed, production requirements of different precast beams can be rapidly met, and the requirements of the modern building industry for high efficiency and high precision of precast beam production are met.
Owner:GUANGDONG BOFENG INTELLIGENT EQUIP CO LTD
Positioning device for electromechanical equipment manufacturing
ActiveCN222430559UImprove stabilityHigh precision requirementsWork holdersElectric machineControl engineering
Owner:黄金鑫
Cutter and device for machining cage pocket
ActiveCN222520005Uimprove product qualityIncrease productivityTurning toolsMachine partsMachine tool
The utility model relates to the technical field of retainer pocket hole machining, in particular to a retainer pocket hole machining tool and device. The mounting part is fixed with a processing machine tool; the first machining part is connected with the mounting part, is provided with a first cutting edge and a second cutting edge which are parallel to each other, and is used for machining a cylindrical hole section; the second machining part is connected with the first machining part, is provided with a third cutting edge and a fourth cutting edge which are parallel to each other, and is used for machining an elliptic cylindrical hole section; the first blade is connected with the third blade; the second blade is connected with the fourth blade; the rotary machining diameter of the first blade is equal to that of the second blade; the rotating machining diameter of the third blade is larger than that of the fourth blade. According to the pocket forming tool, pocket forming is completed through one-time positioning machining of only one tool, no machining defect exists at the tool connecting position of the cylindrical hole section and the elliptic cylindrical hole section of the pocket, and then the product quality is improved.
Owner:DALIAN RUIGU SCI & TECH
Full-automatic single-head single-Y screw locking robot
ActiveCN224143943Uquality improvementimprove securityMetal working apparatusArmsElectric machineryMachine
The utility model discloses a full-automatic single-head single-Y screw locking robot which comprises a supporting mechanism, a screw locking mechanism and a screw locking mechanism. The feeding mechanism comprises a rotating disc, the rotating disc is arranged in the middle of the upper end face of the workbench, a plurality of containing plates are arranged at the top end of the rotating disc around the axis of the rotating disc in an annular array at equal intervals, and a positioning groove is formed in the top end of each containing plate; the driving mechanism comprises a first vertical plate, the first vertical plate is arranged on one side of the top end of the workbench, two first sliding rails are symmetrically arranged on the side, facing the rotary disc, of the first vertical plate, the two first sliding rails are jointly and slidably connected with a second vertical plate, a first telescopic motor is arranged on the first vertical plate, and the output end of the first telescopic motor penetrates through the first vertical plate. The automatic screw locking device has the advantages of being high in efficiency and good in consistency, and the problems that current manual screw locking is low in efficiency and poor in consistency are solved.
Owner:DONGGUAN ANT AUTOMATION EQUIP CO LTD
High-precision feeding device and method for spraying machining of hypotube
ActiveCN119216142AHigh precision requirementsIncrease productivityLiquid surface applicatorsCoatingsMachiningIndustrial engineering
The invention relates to the technical field of spraying machining of hypotubes, in particular to a high-precision feeding device and method for spraying machining of hypotubes, the high-precision feeding device comprises a spraying room, a spraying die nozzle is arranged at the front end of a spraying station of the spraying room, and the high-precision feeding device is characterized in that a feeding mounting frame is arranged on one side of the spraying die nozzle; the spraying device has the beneficial effects that the loading and feeding mounting frame, the feeding platform and the guiding platform are arranged on one side of the spraying room, manual loading and feeding in the spraying process of the hypotube can be automatically replaced with high precision, straightening and accurate guiding and positioning are matched, the hypotube can be accurately fed into a spraying die nozzle for spraying machining, and the spraying efficiency is improved. According to the spraying feeding device, manual work is liberated, single and double stations can be freely matched with multiple sets of spraying machining lines, the production efficiency is greatly improved, the problem that in the prior art, when a spraying feeding device is used for spraying machining of the hypotube, precision is not high is solved, and the high-precision requirement for spraying machining of the hypotube is met.
Owner:SUZHOU LEVEBIO TECH CO LTD
A modular tooling fixture mechanism for machining triple eccentric butterfly valve bodies
ActiveCN224310488UEffective control of circular runoutprecise positioningWork holdersButterfly valveMachining
This utility model provides a modular tooling fixture mechanism for machining triple eccentric butterfly valve bodies, belonging to the technical field of fixture mechanisms. This modular tooling fixture mechanism for machining triple eccentric butterfly valve bodies includes a floating clamping module and a quick-change flange positioning base plate. The floating clamping module is disposed above the quick-change flange positioning base plate and is used to float and clamp the triple eccentric butterfly valve body placed on the quick-change flange positioning base plate. The quick-change flange positioning base plate is used to position the triple eccentric butterfly valve body and realize overall transfer between multiple processes. The floating clamping module includes a main frame and a pneumatic auxiliary locking assembly. The main frame adopts a three-way eccentric adjustment mechanism, which has a built-in adjustable wedge block, and the adjustable wedge block is connected to a screw. This solves the problems of eccentric deformation, cumulative positioning errors in multiple processes, and poor tooling versatility in the machining of triple eccentric butterfly valve bodies, eliminates repeated clamping errors, and improves accuracy and efficiency.
Owner:ANHUI KEFENG ALLOY CO LTD
Focused stack weight domain deep extraction method, device and equipment and storage medium
PendingCN122510318ASolve the problem of false altitude pointsSuppress random spikes
This invention discloses a method, apparatus, device, and storage medium for depth extraction of the focus stack weight domain. The method includes: acquiring a multi-focal plane image sequence; calculating focus sharpness pixel-by-pixel and normalizing it along the focal plane to generate an initial weight map; using the original image as a structural reference to perform edge-preserving filtering on the initial weight map to obtain an optimized weight map; constructing a weight-focal plane curve based on the optimized weight map, and sequentially performing three levels of logical judgment: the first level removes textureless regions based on the maximum weight value; the second level removes high-reflectivity false peaks based on waveform flatness; and the third level filters candidate focal plane positions based on peak focus sharpness; and performing sub-pixel fitting on the selected candidate focal plane positions to convert them into physical depth and generate a 3D point cloud. This invention effectively solves problems such as false points on textureless backgrounds, false peaks on highly reflective surfaces, edge breaks in weak textures, and limited depth accuracy through edge-preserving filtering to optimize the weight map, three-level progressive judgment, and sub-pixel fitting.
Owner:JIANGSU MUTENGGUANG PRECISION OPTICAL INSTR CO LTD
Cerebrospinal fluid sampling and detecting device
PendingCN121943379Aefficient switchingEasy to detectSurgical needlesVaccination/ovulation diagnosticsActuatorSurgery
The invention discloses a cerebrospinal fluid sampling and detecting device, and belongs to the technical field of neurology. According to the cerebrospinal fluid sampling and detecting device, a detecting and distributing head, a puncture needle, a control cabinet and a detecting box are arranged on a device base, a sealing sleeve is arranged in the detecting and distributing head, a preliminary checking disc is installed in the sealing sleeve, and a three-way valve is installed between the detecting box and the detecting and distributing head. The cerebrospinal fluid sampling and detecting device solves the problems that an existing cerebrospinal fluid sampling and detecting device cannot carry out split charging to achieve automatic adjusting operation, and the detection effect is affected, according to detection data, the electric actuator is adjusted through the plc module, the three-way valve and the adjusting valve are controlled, and therefore according to the detection result, the cerebrospinal fluid can be firstly split charged, and then split charging is carried out. All optical and electrochemical signals are captured by an optical fiber sensing array plate and a detection box which are arranged in the detection distribution head, and are transmitted to a control cabinet through Bluetooth, so that different detection processing work is carried out in time, treatment schemes are effectively switched, and the detection effect is improved.
Owner:PEOPLES HOSPITAL OF XINJIANG UYGUR AUTONOMOUS REGION
Animal protein saucepan with ultra-large capacity
PendingCN119405089Agood cooking effectFully contactedFood shapingAnimal proteins working-upStructural engineeringDrive motor
A top cover is arranged at the top of a pot body, a feeding opening, a liquid adding pipe and a ventilation pipe are arranged on the two opposite side edges of one end of the top cover respectively, a discharging pipe is arranged at the end, away from the feeding opening, of the bottom of the pot body, a heating layer is arranged on the outer side of the pot body, and the bottom of the pot body is a cylindrical side wall cambered surface; the axis of the cambered surface of the cylindrical side wall inclines downwards from the end where the feeding port is located to the end where the discharging pipe is located, a stirring shaft is arranged at the position, located at the axis of the cambered surface of the cylindrical side wall, in the pot body and provided with spiral stirring blades for moving materials to the liquid adding pipe, and the stirring shaft is further coaxially and evenly provided with multiple rows of scraping plates; one end of the stirring shaft extends out of the pot body and is in transmission connection through a driving motor. Known from the structure, according to the ultra-large-capacity animal protein saucepan, the spiral stirring blades and the scraping plate are arranged, so that cooking liquor in the pan body can make full contact with block materials, the block materials are more tasty, and the cooking effect is better.
Owner:JIANGSU TIANYU WEIYE INTELLIGENT EQUIP CO LTD
Method for improving hardness of diamond particles through mosaic splicing
ActiveCN119265534AOptimize process floweasy to operateChemical vapor deposition coatingSuperhard materialAlloy substrate
The invention provides a method for improving the hardness of diamond particles through mosaic splicing, and belongs to the field of superhard materials. The method comprises the following steps: 1) selecting monocrystal diamond particles to be processed, and processing micropores in the surface of a copper substrate; (2) single crystal diamond is spliced into the micropores, the copper substrate is placed into CVD equipment, and a layer of doped diamond is deposited on the surfaces of the exposed diamond particles in a pulse mode; (3) a film formed by particles of the pulse type deposition doped diamond layer is taken down and placed on the alloy powder in an inverted mode, and an alloy substrate wrapping a diamond doped face is formed; (4) the substrate is placed in CVD equipment, and doped diamond is deposited on the surfaces of the diamond particles in a pulse mode till the thickness of first pulse deposition is achieved; 5, the deposited diamond particles are fragment.The hardness of the diamond particles prepared through the method is improved by 2-4.5 times, the grade of diamond powder can be improved through the method, and the method is simple and convenient in preparation process, low in cost and suitable for industrial application with various high hardness requirements.
Owner:NORTH CHINA UNIVERSITY OF TECHNOLOGY
Anti-slip measuring instrument for cable clamp of high-temperature steel cable
ActiveCN224189512UPrecise scale measurementsHigh precision requirementsMachine part testingUsing optical meansMeasuring instrumentClassical mechanics
The utility model discloses a high-temperature steel cable clamp anti-slip measuring instrument, which relates to the technical field of engineering surveying and comprises a supporting plate, a connecting plate fixedly mounted on the upper surface of the supporting plate, a measuring scale fixedly mounted on the outer wall of the connecting plate, scale grooves symmetrically formed in the upper surface of the measuring scale, and mounting plates symmetrically and fixedly mounted on the outer wall of the measuring scale. Positioning rods are symmetrically and fixedly connected to the outer walls of the two mounting plates, and movable plates are movably mounted on the outer surfaces of the two positioning rods. The device provided by the utility model is suitable for various construction measurement environments, especially for the steel cable clamp working under a high-temperature condition, and can be widely applied to the measurement of the slippage of different types of steel cable clamps due to high flexibility and adjustability, so that the device can be widely applied to construction sites, bridge construction or other occasions requiring accurate measurement. Through the precise design and multifunctional configuration of the high-temperature steel cable clamp anti-slip measuring instrument, the accuracy and stability of measurement are improved.
Owner:NANJING CONSTR ENG COLLEGE CONSTR DESIGN RES INST