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35results about How to "Reduce precision error" patented technology
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Multi-target detection method based on multi-source high-frequency track and high-precision map
PendingCN119575365Areduce cumbersomeHigh precisionCharacter and pattern recognitionRadio wave reradiation/reflectionVideo sensorsRadar
The invention discloses a multi-target detection method based on a multi-source high-frequency track and a high-precision map, which realizes conversion of a video coordinate system, a millimeter wave radar coordinate system and a world coordinate system and fuses a radar target and a video target. The method comprises the following steps: automatically calibrating video and thunder vision; performing automatic deviation correction on a north corner and an equipment position based on multi-straight-line regression; transforming the video sensor into a world coordinate system; and carrying out decision association of the Leiyu tracking target. According to the method, the target trajectory and the high-precision map data are tracked by utilizing the thunder vision high frequency, the complexity of calibration between the sensors and between the sensors and a world coordinate system is reduced, meanwhile, the precision errors of coordinate transformation between the thunder vision sensors and thunder vision data world coordinate transformation are reduced, and compared with the prior art, the method has the advantages that in the application of complex traffic roadside vehicle detection scenes, the detection efficiency is improved. The precision is higher; and the data association has robustness.
Owner:LIANYUNGANG JARI ELECTRONICS CO LTD +1
Numerical control machine tool tail end clamp quick-changing device capable of automatically adjusting aim point
ActiveCN119609705AReduce precision errorReduce positional deviationMeasurement/indication equipmentsPositioning apparatusNumerical controlMachine tool
The invention relates to the technical field of machine tool parts, in particular to a numerical control machine tool tail end clamp quick-changing device capable of automatically adjusting the aim point, which comprises a machine tool connecting disc, a tool connecting disc and a circuit connecting port, a connecting block is connected to the tool connecting disc in a sliding mode, and a jacking air cylinder is fixedly connected to the tool connecting disc. An ejection block is slidably connected into the connecting groove, and an ejection air cylinder is also arranged in the connecting groove. The output end of the jacking cylinder pushes the connecting block; a positioning groove is formed in the tool connecting disc; the machine tool connecting disc is fixedly connected with a positioning block; the detection rod and the detection pressure sensor are arranged in the tool connecting disc to detect the position of the tool connecting disc relative to the machine tool connecting disc, and then the position of the tool connecting disc is adjusted to the center of the machine tool connecting disc through pushing of the fine adjustment block, so that when the machine tool connecting disc and the tool connecting disc are abraded, the position deviates after installation, and the tool connecting disc cannot be damaged. Adjustment can be carried out, so that the precision error is reduced.
Owner:JIANGSU YUBANG IND AUTOMATION SYST CO LTD
Rapid incremental learning technology based on pulse brain-like model
ActiveCN119398132AGuaranteed miniaturizationImprove plasticityInternal combustion piston enginesCharacter and pattern recognitionAlgorithmSpiking neural network
The invention discloses a fast incremental learning technology based on a pulse brain-like model, and belongs to the technical field of computer vision. According to the invention, a Yolov3-tiny model is selected as a basic model of SpikingYolov3 of the spiking neural network, and the adaptability of the Yolov3-tiny model is improved; an IF neuron model is used as a neuron model of SpikingYolov3; carrying out incremental learning training on the Yolov3-tiny by adopting a method based on network expansion; the weight of the trained model is assigned to the newly constructed SpikingYolov3 through a method of converting ANN into SNN; according to the method, a test image is subjected to coding operation in a Poisson coding mode, so that the test image is converted into an asynchronous pulse sequence, the asynchronous pulse sequence is sent into a Spiking Yolov3 model to be tested and is subjected to comparative analysis with corresponding Yolov3-tiny, and a conclusion that the detection performance of the Spiking Yolov3 model is better is obtained. The SpikingYolov3 is applied to a battlefield environment, so that accurate detection of different types of targets is realized. The problem that a traditional network model needs to be retrained when encountering a new task is solved, and a new solution is provided for a detection task of a complex target.
Owner:HARBIN ENG UNIV
Optical lens automatic focusing method and system
ActiveCN119126326AFast convergencegood effectMachine detailsCharacter and pattern recognitionOptical axisMechanical engineering
The invention relates to the technical field of automatic focusing, in particular to an optical lens automatic focusing method and system. The method comprises the following steps: scanning a three-dimensional environment on a moving path through an optical lens carried on the sweeping robot, and carrying out waste optical environment analysis to obtain waste optical environment data; performing spatial optical axis offset calculation on the waste optical environment data, and performing focus offset coefficient calculation on the waste optical environment data to obtain a waste focus offset coefficient; performing focal plane curvature change analysis according to the waste focus offset coefficient to obtain focal plane curvature change data; according to the focal plane curvature change data, focal plane multi-dimensional calibration processing is carried out, an optical lens focusing strategy is made, and the optical lens focusing strategy is obtained; and performing automatic firmware design on the optical lens focusing strategy to obtain optical lens focusing strategy firmware. According to the method, the automatic focusing technology is optimized, so that the automatic focusing technology is more perfect.
Owner:SHENZHEN YONGTAI PHOTOELECTRIC CO LTD
Integral hoisting construction method for pre-buried anchor bolts of column equipment
The application discloses a kind of tower equipment pre-buried anchor bolt integral hoisting construction methods, first, the positioning axis consistent with the axis of positioning mould is ejected along the center of equipment foundation;After installing vertical support, positioning mould is hoisted as a whole, and each anchor bolt is sequentially assembled into the mounting hole of positioning mould, so that positioning mould and anchor bolt are connected into a whole in the air;The positioning mould and anchor bolt that have been assembled are hoisted into the equipment foundation insert bar, after anchor bolt anchor plate falls below horizontal support elevation, horizontal support construction is carried out, then positioning mould and anchor bolt are dropped to positioning mould support frame, anchor bolt is calibrated and reinforced, then steel binding, formwork installation and concrete pouring are carried out, equipment foundation construction is completed, and formwork is removed and positioning mould is removed.The application adopts positioning mould and anchor bolt integral assembly in the air, reduces the precision error generated by secondary assembly on site, and improves the pre-buried anchor bolt integral hoisting efficiency.
Owner:CHINA CHEM ENG SECOND CONSTR
Material handling and assembly system
The application discloses a material conveying and assembling system, which comprises a material conveying device and a material assembling device. The material conveying device comprises a first track plate and a sliding block. A material conveying mechanism is arranged on the sliding block. The first track plate is provided with a track groove to define the running track of the sliding block. The track groove comprises a synchronization section arranged on the side close to the material assembling device. The synchronization section is an arc concentric with the material assembling device, so that the material on the material conveying mechanism coincides with the mold cavity or the insert track on the forming mold when the sliding block passes through the synchronization section. The synchronization section on the track groove cooperates with the sliding block to make the material on the material conveying mechanism have a longer track coincidence interval with the mold cavity or the insert on the forming mold. The track coincidence time of the material and the mold cavity or the insert is prolonged, the feeding time is better grasped, and the feeding precision and the assembling quality of the material are improved.
Owner:贺贤榜
Lifting type supporting device for crankshaft parameter measurement
The utility model discloses a lifting type supporting device for crankshaft parameter measurement, which comprises a working table, crankshaft supporting bases are symmetrically arranged on the working table, and lifting structures for adjusting the heights of the crankshaft supporting bases are arranged at the bottoms of the crankshaft supporting bases. Sliding rail structures used for adjusting the distance between the two crankshaft supporting bases are arranged on the two sides of the lifting structure, and the crankshaft supporting bases are connected with the lifting structure and slidably connected with the sliding rail structures through the lifting structure. According to the utility model, the automatic lifting support device is designed and additionally arranged to place the crankshaft, so that the position of the engine crankshaft can be fixed, the problem that the crankshaft is directly placed on a workbench to be directly measured to generate large errors is solved, the parameter accuracy of the engine crankshaft can be improved, the height can be automatically adjusted, and the working efficiency is improved. And self-adjustment is carried out according to the height of maintenance personnel. In the crankshaft maintenance process, the crankshaft maintenance device is convenient to use and operate, good in stability and high in reliability, and precision errors are reduced.
Owner:GUIYANG VOCATIONAL & TECHNICAL COLLEGE
Symmetrical crankshaft and oblique slot shaft combination structure and application thereof in large flow metering pump
ActiveCN120845297BEasy to adjustreduce vibrationPositive displacement pump componentsPump controlControl theoryMetering pump
The application discloses a symmetrical crankshaft inclined groove shaft combined structure and application in a large-flow metering pump, relates to the technical field of metering pumps, and comprises an adjustable eccentric wheel which is rotationally arranged in a connecting frame, performs eccentric rotation, and drives the connecting frame to reciprocatingly move; a pin which is fixedly connected with the adjustable eccentric wheel; an inclined groove shaft which is slidingly connected in a hollow pipe, the adjustable eccentric wheel is slidingly sleeved on the inclined groove shaft, and the adjustable eccentric wheel is driven to rotate; and an adjusting groove which is arranged on the inclined groove shaft, the pin is slidingly connected in the adjusting groove, and the adjusting groove comprises a fast adjusting section and a slow adjusting section, and the inclination angle of the fast adjusting section is larger than that of the slow adjusting section. Through the cooperative action of the fast adjusting section and the slow adjusting section, in the flow adjusting process of the metering pump, when the pin moves in the fast adjusting section, the large inclination angle can be used to realize the rapid adjustment of the flow, and when the pin moves in the slow adjusting section, the small inclination angle can be used to adjust the flow with high precision.
Owner:WENZHOU OUDE GAS VALVE
Process model generation method and system for new energy sheet metal process
ActiveCN119047083BImprove optimization effectquality improvementGeometric CADDesign optimisation/simulationComputer Aided DesignNew energy
The present invention relates to the field of computer-aided design technology, and in particular to a method and system for generating a process model of a new energy sheet metal process. The method comprises the following steps: obtaining and analyzing historical new energy vehicle body manufacturing data to obtain a new energy vehicle component topological structure model; modeling the historical new energy vehicle body manufacturing data to obtain a process flow structure model; calculating the historical new energy vehicle body manufacturing data to obtain sheet metal structure deformation influencing factors; evaluating the new energy vehicle component topological structure model to obtain docking component precision error data; performing component docking precision error process identification based on docking component precision error data and sheet metal structure deformation influencing factors, thereby obtaining precision error process data, and optimizing process parameters, thereby obtaining a sheet metal process flow optimization model. The present invention reduces the precision error of sheet metal processes.
Owner:SHENZHEN HONGXIN PRECISION IND CO LTD
While-drilling natural crack calibration and risk prediction method
The invention relates to a while-drilling natural crack calibration and risk prediction method. The method comprises the following steps: S1, carrying out data information standardization processing; s2, carrying out correlation analysis on adjacent wells, preferably selecting two wells with high correlation, and establishing a well connection profile; s3, establishing a natural crack correction initial model; s4, correcting the well depth corresponding to the drilled natural fracture by using the actual depth of each drilled stratum of the target well; correcting the well depth corresponding to the natural fracture at the position according to the lithology of the forward drilling formation, the logging while drilling information or the drilling engineering abnormity, and predicting the well depth corresponding to the natural fracture around the well in the later period by combining the previous prediction and actual drilling depth error; and S5, for the predicted well depth corresponding to the natural fracture, qualitatively analyzing the crustal stress borne by the fracture through the geophysical prospecting profile around the well, measuring the size of the included angle of the fracture, and predicting the geological risks such as leakage, collapse and blocking at the position of the target well. According to the method, the accuracy and reliability of the predicted depth can be ensured, a geological basis is provided for smooth construction of the well, and a reference is provided for later-stage well spacing and fracture prediction of the region.
Owner:SINOPEC OILFIELD SERVICE CORPORATION +2
A method for improving detection signal-to-noise ratio of area array staring camera
ActiveCN112529810BSimplify the registration processHigh measurement accuracyImage enhancementImage analysisSpatial noiseComputer graphics (images)
The present invention discloses a method for improving the detection signal-to-noise ratio of an area array staring camera, comprising the following steps: (1) obtaining a non-uniformity correction coefficient based on K consecutive frames of light and dark images collected by the area array staring camera; (2) the area array staring camera continuously collects multiple frames of target images, and according to the non-uniformity correction coefficient obtained in step (1), performs non-uniformity correction on each frame of the collected target image to obtain multiple frames of target images with reduced spatial noise; (3) performs image registration on the multiple frames of target images with reduced spatial noise in step (2) to obtain multiple frames of target images after registration; (4) performs pixel merging on each frame of the registered target image to obtain each frame of target image after pixel merging; and (5) performs superposition processing on each frame of the target image after pixel merging to obtain a final image with improved signal-to-noise ratio.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
Rotary driving mechanism
ActiveCN222484469UReduce precision errorcompact structureMechanical energy handlingStructural associationRotational axisDrive wheel
The utility model discloses a rotation driving mechanism which comprises a base plate, a rotating shaft, a driven wheel, a rotation driving piece, a magnetic ring and a magnetic encoder. The rotating shaft is rotatably mounted on the base plate; the driven wheel and the rotating shaft are coaxial and fixedly connected; the rotary driving part is fixedly mounted on the base plate and is used for driving the driven wheel to rotate; an annular groove is formed in the driven wheel, and at least part of the magnetic ring is arranged in the annular groove; the magnetic coding chip is fixedly installed on the substrate, when the driven wheel is in a rotating state, the magnetic ring and the magnetic coding chip rotate relatively, and the magnetic coding chip induces rotation of the magnetic ring to obtain rotation information of the driven wheel. According to the rotation driving mechanism, the magnetic ring is arranged on the driven wheel, the magnetic coding chip is arranged on the substrate, the magnetic coding chip reads the rotation of the induction magnetic ring to obtain the rotation information of the driven wheel, and the position precision error of a load end caused by the precision error of a transmission system can be effectively reduced; the magnetic ring is arranged in the annular groove of the driven wheel, so that the overall structure is more compact.
Owner:SANLI VIDEO FREQUENCY SCI & TECH SHENZHEN
A method and device for assembling half a ship remotely
ActiveCN118877148BHigh precisionReduce precision errorGeometric CADWaterborne vesselsHull structureClassical mechanics
The present invention relates to the technical field of shipbuilding, and discloses a method and device for closing half ships in different places. The method establishes the three-dimensional data of the half ships to be closed in the same precision measurement and control network, so that the positioning reference lines of different half ships to be closed are consistent, reducing the precision error after closing; before closing the half ships, the reference half ship is determined, and the relative position relationship between each half ship to be closed and its corresponding ship moving carrier is controlled to be consistent, avoiding the situation where the half ship to be closed is offset due to the transfer, resulting in the overall misalignment of the closing of the half ship; before closing the half ships, a closing simulation is performed, and each half ship to be closed is corrected according to the simulation results to ensure that the hull structure alignment and the weld gap meet the relevant precision requirements; when closing the half ships, the offset position relationship between the reference half ship and other half ships to be closed is controlled to be consistent, ensuring the alignment of the half ship structure during the closing process. The present invention realizes the whole process precision monitoring, and improves the accuracy of the closing of the half ships under the premise of ensuring the closing efficiency.
Owner:CSSC HUANGPU WENCHONG SHIPBUILDING CO LTD
Machine tool moving shaft mechanism with cooling device
ActiveCN222430164USimple structureeasy to useMaintainance and safety accessoriesNumerical controlThermal dilatation
The utility model discloses a machine tool moving shaft mechanism with a cooling device, which belongs to the technical field of numerical control machining centers and comprises a frame body, a track component, a sliding seat component, a driving mechanism and a cooling mechanism. The track assembly is arranged on the inclined surface of the frame body; the sliding seat assembly is arranged on the track assembly; the driving mechanism comprises a supporting frame, a motor seat and a servo motor, the supporting frame is arranged in the middle of one side of the inclined plane of the frame body, the motor seat is arranged on the supporting frame, and the servo motor is arranged in the motor seat; the cooling mechanism comprises a fixing support and a fan, the fixing support is arranged at the outer end of the servo motor, and the fan is installed on the fixing support. The servo motor is simple in structure and convenient to install and use, precision errors caused by thermal expansion of the motor to equipment are effectively reduced, the service life of the servo motor is effectively prolonged, and cost is low.
Owner:KUNSHAN ALLOUT PRECISION MACHINERY
Workpiece stabilizing device for hardware fitting machining
PendingCN119319185AGuaranteed location accuracyavoid offsetMetal-working feeding devicesPositioning devicesComputer hardwareMachine
The invention discloses a workpiece stabilizing device during hardware fitting machining, and relates to the technical field of hardware fitting machining tools, the workpiece stabilizing device comprises a bending machine of a rectangular frame structure, and the upper end of the bending machine is fixedly connected with an upper die used for applying bending force to hardware fittings; the bottom end of one side of the bending machine is rotationally connected with a lower die which is used for providing a supporting face for bending and is matched with the upper die for forming, the side, close to the upper die, of the lower die is in threaded connection with a rotating rod used for accurately controlling the bending angle and depth, and one side of the upper die is provided with a distribution positioning mechanism. A bending angle engraving and drawing mechanism is arranged on one side of the clamping plate, a correction compression roller mechanism is arranged above the workbench, a short abutting plate and a long abutting plate are matched with each other, the short abutting part firstly makes contact with the bent end of a workpiece, the preliminary positioning effect is achieved, the position accuracy of the workpiece before bending is guaranteed, and the workpiece bending precision is improved. And a foundation is laid for subsequent bending operation.
Owner:NANTONG SHUANGYI MOLD CO LTD
Ground subsidence monitoring method, device, equipment, storage medium and program product
ActiveCN121557951BSettlement accurateAccurate monitoring of settlementHeight/levelling measurementNeural learning methodsGround subsidenceData set
The application discloses a kind of ground surface settlement monitoring method, device, equipment, storage medium and program product, it is related to the technical field of ground surface settlement monitoring.Determine the data acquisition interval time of adjacent two InSAR settlement data in time series InSAR settlement data set, time coding is carried out to data acquisition interval time, obtain time interval matrix, time interval matrix and time series InSAR settlement data set are used to train ground surface settlement prediction model, obtain target model, target model is used to carry out ground surface settlement monitoring to target area to be monitored.By time coding to data acquisition interval time and using the time interval matrix and time series InSAR settlement data set obtained by coding to train ground surface settlement prediction model, to reduce the precision error brought by non-uniform time series data, improve the adaptability of target model to irregular sampling data, to improve the prediction accuracy of target model, finally accurately monitor ground surface settlement.
Owner:SHAANXI BEIDOU ENVIRONMENTAL INFORMATION IND CO LTD
Body length measuring method based on shot image and related equipment
PendingCN119509368AImprove satisfactionreduce lossesImage analysisGeometric image transformationImaging processingComputer graphics (images)
The invention belongs to the technical field of image processing, and relates to a shot image-based body length measurement method and related equipment, and the method comprises the steps: obtaining a to-be-measured image of a to-be-measured object; extracting the image side length a of a reference object in the to-be-measured image and the image body length pw of the to-be-measured object according to the OCR technology; the actual body length x of the to-be-measured object is calculated according to the actual side length w1 of the reference object, the image side length a of the reference object and the image body length pw of the to-be-measured object, and the actual body length x of the to-be-measured object is expressed as x = pw * w1 / a; and outputting the actual body length x to the user terminal. The measurement body length is controlled according to the image acquisition of the object to be measured, the precision error caused by manual operation can be reduced, a single person can work, convenience is provided for measuring the object to be measured by the claim settlement personnel, the claim settlement personnel can quickly and accurately assess the loss, the work claim settlement efficiency is improved, the inaccurate loss assessment amount caused by the measurement body length error is reduced, and the measurement accuracy is improved. And meanwhile, the customer satisfaction degree can also be improved.
Owner:CHINA PING AN PROPERTY INSURANCE CO LTD
Universal plunger ball face grinding device
The utility model relates to ultra -precision machining equipment technical field, concretely for a kind of general plunger spherical grinding device, including rack, grinding wheel spindle mechanism, plunger clamping and transfer mechanism, measurement detection mechanism and control system;The grinding wheel spindle mechanism includes riser, adjusting frame, arc toothed plate, arc slide rail, grinding wheel spindle, vertical lifting servo motor, swing arm angle adjustment servo motor and feed servo motor, lifting slide rail mechanism is equipped between the riser with the rack, the vertical lifting servo motor is installed on the rack, the vertical lifting servo motor is used to adjust the height of the riser, the arc toothed plate and arc slide rail are all installed on the riser, and the device is strong in universality, can be adapted to multiple specifications plunger, machining precision and efficiency significantly improve, can effectively improve spherical roundness and surface roughness, prolong the service life of final product.
Owner:CHANGZHOU SPD AUTOMATION EQUIP CO LTD
Power density distribution testing device of remote microwave wireless energy transmission system
InactiveCN119437414AGuaranteed accuracyReduce precision errorPhotometry using electric radiation detectorsPhotovoltaic energy generationMicrowaveUncrewed vehicle
The invention provides a power density distribution testing device of a remote microwave wireless energy transmission system, which comprises a motion structure, a controller and a testing unit, wherein the moving structure comprises a rotary table, a rotating structure arranged below the rotary table, four radial moving structures fixed on the rotary table and a moving structure consisting of a wave-absorbing material laid on the upper surface of the rotary table; the number of the testing units is at least five, and the testing units are fixed to the center of the rotary table and the four sliding blocks respectively. The rotating structure and the four radial motion structures are controlled by the controller to drive the test units on the four sliding blocks to move along the guide rails, and the rotary table rotates around the central axis of the rotary table. By coordinating rotation and linear movement, comprehensive measurement of microwave energy beams is realized, a complete power density distribution diagram is finally generated, and the defects that in the prior art, the position error of an RFID tag grid is large due to limited unmanned aerial vehicle precision control and the precision error of a flexible net structure is caused due to the influence of self weight are overcome.
Owner:XIDIAN UNIV
Controllable scaling convolution processing device and method based on random calculation
The present invention relates to a controllable scaling convolution processing device and method based on random calculation. By sharing the pseudo-random number sequence generated by the random number source in the random number generation module, one round of convolution calculation uses only one linear feedback shift register, which greatly reduces the hardware cost and calculation overhead. At the same time, the random number generation module performs operations such as shifting and swapping the pseudo-random number sequence through shuffling operations, which effectively weakens the correlation between data, thereby greatly reducing the precision error caused by the correlation in the random calculation. In the convolution calculation module, a JK trigger is used to replace a binary divider to generate a control signal of a multiplexer in the convolution calculation, without relying on a large number of AND gates or XOR gates, which greatly simplifies the complexity of the convolution calculation architecture and further reduces the hardware cost, area occupancy and power consumption; finally, the data processing module completes the conversion and recovery of binary numbers.
Owner:NAT UNIV OF DEFENSE TECH
High-purity switching value pressure transmitter
ActiveCN222166387UPressure control value is adjustableGuaranteed uptimeFluid pressure measurementLap jointTransmitter
The utility model discloses a high-purity switching value pressure transmitter, which relates to the technical field of pressure transmitters and comprises a base and a mounting hole. When the high-purity switching value pressure transmitter is used, the lower end of a shell is matched with a lower seal at the root of a plug through a boss to form a waterproof seal, the upper end of the shell is matched with an upper seal at the root of a controller to form a waterproof seal, and in addition, a circuit board is fixed on the inner side of a mounting rib at the middle end of the shell through a screw. The circuit board and the wire harness are sealed and wrapped by polyurethane, waterproof protection is carried out on the circuit board to the maximum extent, normal operation of signal transmission work is guaranteed, in addition, positioning lap joint of the pressure sensitive element is achieved through hook bodies on the two sides of the plastic positioning piece and two hook connecting grooves in the circumference of the containing groove, and the pressure sensitive element is prevented from being damaged. The contact area of the hard gasket and the upper end face of the plug is larger than the contact area of the pressure sensitive element and the upper end face of the plug when the hard gasket is not arranged.
Owner:SUZHOU BAIKONG SENSING TECH CO LTD
Rope-driven flexible robotic arm for small-cavity surgery
The application discloses a rope-driven flexible mechanical arm for small-cavity surgery and relates to the technical field of flexible mechanical arms. The rope-driven flexible mechanical arm for small-cavity surgery comprises a handle mechanism, the front end of the handle mechanism is connected with a flexible mechanism, the flexible mechanism is arranged by skeleton assemblies, each skeleton assembly comprises two annular bone rings, and tube clamps are uniformly and equidistantly fixedly connected in the rings of each bone ring; the two bone rings of one skeleton assembly are connected with a first elastic support mechanism; the adjacent bone rings of two skeleton assemblies are connected with a second elastic support mechanism; the lower end surface of the bone ring close to the handle mechanism is fixedly connected with a connecting cylinder, a soft sleeve for fixing the connecting cylinder is arranged on the outer side of the skeleton assembly, and the front end surface of the soft sleeve is fixedly connected with a soft head; a pull rope mechanism for operating the flexible mechanism is arranged between the handle mechanism and the flexible mechanism; a cavity tube mechanism is arranged in the handle mechanism and the flexible mechanism; and the rope-driven flexible mechanical arm for small-cavity surgery improves the targeting of operation.
Owner:SUN YAT SEN UNIV
An automatic measuring method of a twisted and deformed blade
ActiveCN116295196BReduce processing difficultyRealize automatic measurementMeasurement devicesWind energy generationAviationAlgorithm
This invention relates to the field of blade measurement technology and discloses an automatic measurement method for tortuous and deformed blades. It aims to solve the problems of high labor costs, large measurement errors, low measurement efficiency, and scratch generation in existing methods. The solution mainly includes: positioning and clamping the blade to be measured on a corresponding fixture; obtaining the theoretical coordinate values of multiple theoretical measurement points along the vector direction of the blade; establishing a coordinate system based on a six-point iteration method; using a coordinate measuring machine to detect multiple measurement points on various cross-sections of the blade; for each cross-section, performing optimal fitting calculations based on the corresponding measured points and theoretical profiles; and, in the coordinate system after optimal fitting for each cross-section, detecting the blade according to the actual measurement points corresponding to each theoretical measurement point to obtain measured coordinate values, and determining the dimensions of the blade based on the measured coordinate values. This invention achieves rapid, scratch-free automatic measurement, reduces labor costs, and improves the reliability of dimensional measurement, making it particularly suitable for aero-engine blades.
Owner:STATE-OWNED SICHUAN WEST MASCH FACTORY
Miniature worm and gear rotating platform
ActiveCN224188009UChange rotational backlashAchieve multi-degree of freedom adjustmentStands/trestlesGearing detailsRotary stageStructural engineering
Owner:DONGGUAN C&K MECHATRONIX CO LTD
Portable tool magazine tool changing arm capable of quickly changing milling cutter machining center
InactiveCN119550124Aguaranteed cleanlinessGuarantee stabilityGripping headsPositioning apparatusMilling cutterSurface cleaning
The portable tool magazine tool changing arm capable of rapidly changing the milling cutter machining center comprises a shell, the shell is connected with a cover plate through a first screw, one side of the shell is open, two sets of claw tools are rotationally connected to the position of the shell, and the adjacent sides of the two sets of claw tools are arranged in an inclined plane mode. A clamping mechanism for driving the two sets of claw cutters to clamp is installed in the shell, the containing groove and the side walls of the claw cutters are in smooth transition, the cleaning plate is slidably connected into the containing groove, and an elastic mechanism for driving the cleaning plate to be tightly attached to the side walls of the claw cutters is installed on the outer wall of the sliding block. The cleaning plate can uniformly and thoroughly clean the surface of the claw cutter under the driving of the sliding block, so that the influence of pollutants on the clamping surface is avoided, the cleanness of the surface of the claw cutter is ensured, the uniform distribution and stability of the clamping force in the subsequent clamping process are ensured, and the working efficiency is improved. And tool loosening or precision errors caused by unstable clamping are reduced, and the reliability of the whole tool changing process is improved.
Owner:YANCHENG DONGTAI YOUDU TECH TRADE CO LTD
Mechanical impurity analysis method for natural gas-to-ethylene glycol auxiliary material lubricating oil
PendingCN119595876AImprove stabilityavoid uncontrollable errorsPhysical chemistryProcess engineering
The invention discloses a mechanical impurity analysis method for natural gas-to-ethylene glycol auxiliary material lubricating oil. The method comprises the following steps: mixing to-be-detected lubricating oil and petroleum ether according to a certain ratio to form a sample solution; weighing quantitative filter paper for testing; keeping the weight of the quantitative filter paper constant; putting quantitative filter paper with constant weight into the glass funnel, heating and filtering the sample solution through a heating sleeve, and exhausting air in a suction flask through a mechanical impurity tester to form a certain negative pressure; pouring the sample solution into a glass funnel with quantitative filter paper for filtering; the quantitative filter paper is repeatedly washed with petroleum ether until no oil spots are left; weighing the quantitative filter paper with the impurities again; during the test, the solvent is corrected through a blank test; and taking an arithmetic mean value of two repeatedly measured results as a test result. The problems of poor safety and high test cost during lubricating oil mechanical impurity analysis can be effectively avoided, the accuracy of analysis data is ensured, and the physical and psychological health of staff is protected.
Owner:XINJIANG ZHONGKUN NEW MATERIAL CO LTD
All-electrically-driven multifunctional shoemaking forming machine
ActiveCN224060276UEliminate dependenciesshort action timeDomestic articlesLubrication check valvesRotational axisHigh energy
Aiming at the problems of high energy consumption, low control precision and poor structural stability of the traditional hydraulic / pneumatic pressing equipment, the utility model discloses an all-electrically-driven multifunctional shoemaking forming machine, which adopts an all-electrically-driven design and realizes high efficiency, energy conservation and accurate pressing through cooperative control of an electric pressure supply device and a linear electric cylinder assembly. The equipment integrates two sets of shoe material pressing modules, an upper water pressing module is connected with a linkage push plate through a multi-layer connecting rod-guide rod composite transmission mechanism, the anti-offset capacity is enhanced through a connecting rod assembly with rotating shafts arranged alternately, and the friction performance of a kinematic pair is optimized in combination with a self-lubricating shaft sleeve and a separation ring; a variable pressure cavity and a sliding block adjusting mechanism are arranged in the electric pressure supply device, and 0-30 kg / cm < 2 > pressure control is achieved in cooperation with a replaceable rubber sheet (adaptive to vamp / sole forming). Compared with a traditional machine type, the energy consumption is reduced by more than 70%, the die assembly precision is improved to + / -0.05 mm, the noise is smaller than or equal to 65 dB, and the efficient, stable and environment-friendly requirements of the shoe material pressing process are met.
Owner:DONGGUAN TIANYUAN MASCH TECH CO LTD
一种等压可调配比多组分混料器及其使用方法
ActiveCN117482816BReduce precision errorImprove the efficiency of proportioning and mixing
Owner:SOUTHEAST UNIV +1
Drill jumbo body positioning and pose compensation method
PendingCN119533412AReal-time pose detectionImprove job stabilityImage enhancementImage analysisLaser targetRock cutting
The invention discloses a drill jumbo body positioning and pose compensation method which comprises the following steps: S1, arranging a laser target and a drill jumbo at proper positions based on the position of the drill jumbo relative to a working surface; s2, adjusting the imaging of the laser target on the working surface, and adjusting the angle of the depth camera; s3, extracting the existing position and posture information as the standard posture of the drill jumbo; s4, in the previous working process, the pose of the drill jumbo is recorded in real time, the deviation value is calculated, and the change rule of the pose and the time when the pose exceeds the deviation range are learned; and S5, when the work is officially carried out, carrying out pose adjustment once at set intervals according to the rock drilling platform stall pose prediction model. The intelligent drill jumbo is high in intelligent degree, the working stability, working precision and working efficiency of the drill jumbo are greatly improved, the drill rod clamping probability is reduced, the manual labor intensity is reduced, precision errors caused by manual participation in posture adjustment are reduced, and the intelligent drill jumbo has very high engineering practical value.
Owner:XI'AN POLYTECHNIC UNIVERSITY
A reciprocating vertical hoist
The present invention discloses a reciprocating vertical hoist, comprising: a stand, a deceleration drive assembly, a correction adjustment assembly and a correction monitoring assembly, the top of the stand is provided with a driving base for arranging the deceleration drive assembly, the two sides of the stand are respectively slidably mounted with a lifting bracket and a counterweight basket, and the tops of the lifting bracket and the counterweight basket are connected to each other through a strip, and the deceleration drive assembly comprises a driving motor, a rotating drum, a flexible wheel and a wave generator rotatably mounted on the inner side of the rotating drum. In the present invention, by setting a new variable transmission structure, the harmonic deceleration motion of the rotating drum is realized by abutting the flexible wheel transmission on the surface of the wave generator through the abutting wheel, and the diameter of the flexible wheel is adjusted under the control of the correction adjustment assembly, resulting in changes in the deformation degree and shape of the flexible wheel, thereby affecting the fitting state and transmission efficiency between the flexible wheel and the rigid wheel gear sleeve, and adjusting and automatically correcting the work by changing the transmission ratio when the motor speed remains unchanged.
Owner:TAICANG SHUNTIAN AUTOMATION EQUIP