2092 results about "3d printed" patented technology

Provided are a quantification method for microscopic cracks inside 3D printed concrete and a system thereof. Before measuring the microscopic crack images according to relevant standards, firstly, a denoising network, improved attention-guided denoising neural network (IADNet) is adopted. IADNet can extract features from microscopic crack images from different perspectives, perceive noise from multiple levels, and perform denoising processing, greatly improving image quality and enhancing texture details, which is beneficial for training segmentation networks. The combination of IADNet and semantic segmentation algorithm has the ability to finely recognize image information, quantify microscopic crack recognition, overcome the shortcomings of measurement and analysis of microscopic cracks inside 3D printed concrete, and improve construction efficiency and quality.

The invention belongs to the technical field of polymer preparation, and particularly relates to a curved-surface polyaniline modified 3D printing polyurethane material and application thereof. According to the preparation method, an ice crystal hard template method and a polyether glycol soft template method are combined, so that the microstructure of polyaniline is adjusted, and the curved polyaniline with regular morphology is prepared. The curved-surface arc-shaped structure has a large specific surface area, can form more contact sites with resin when being directly melt-blended with the resin, is beneficial to construction of a conductive path, and is not easy to agglomerate due to the curved-surface structure. The polyaniline with the arc-shaped structure is of a three-dimensional space structure and is directly blended with the resin to form a randomly arranged conductive network structure, so that the composite material is not easy to break when being impacted, and can be better embedded between the resin to form a stress transfer channel, and a complex three-dimensional network structure is constructed; the mechanical property and the antistatic capability of the product are improved.

The invention discloses a 3D printing defect detection method based on improved YOLOv10n, and the method specifically comprises the steps: constructing a data set, and dividing the data set into a training set and a test set; processing the training set data; the method comprises the following steps of: constructing a DM-YOLO network model by taking YOLOv10n as a basic algorithm; the DM-YOLO network model comprises a trunk feature extraction network, a neck feature fusion network and a detection head network; training the network model by using the training set data; and inputting test set data into the trained DM-YOLO detection model, outputting category information of defect positions in the FDM printed piece, and obtaining a defect detection result. The network is deeply optimized on the basis of YOLOv10n, DSMCAttn, a DySample dynamic up-sampler and a lightweight single-head self-attention mechanism are integrated, and the detection precision and reasoning efficiency of small target defects are remarkably improved.

Additively manufactured articles of footwear comprising a sole portion and an upper portion 3D printed as a single piece. In some embodiments, the article of footwear can comprise an outer skin comprising a plurality of continuous beams extending adjacent to each other and defining at least part of an outer contour of the upper portion, at least part of an outer contour of the sole portion, or both. In some embodiments, the article of footwear can comprise an inner skin comprising a network of beams defining at least part of an inner contour of the upper portion. In some embodiments, the article of footwear can comprise a core structure that connects beams of the outer skin to beams of the inner skin.

The utility model provides a pottery clay 3D printing device capable of mixing and conveying raw materials in a fixed proportion, which comprises a rack, a 3D printing device, a 3D printing device and a 3D printing device, wherein the rack comprises an accommodating chamber and a printing chamber which are arranged in an up-down structure; the raw material conveying mechanism comprises a plurality of conveying assemblies arranged above the rack, and the conveying assemblies are used for conveying different raw materials; the mixing and extruding mechanism comprises an extruding assembly which can be transversely and movably arranged in the containing cavity and communicates with the conveying assembly, the extruding assembly comprises a material mixing bin body, a mixing cavity is formed in the material mixing bin body and communicates with the raw material conveying assembly, a stirring assembly is arranged in the mixing cavity, and an extruding head is connected to the lower portion of the material mixing bin body; the printing platform is arranged in the printing cavity in a longitudinal sliding mode and used for bearing 3D printing products, raw materials are directly printed in a printer after being mixed, efficiency can be greatly improved, and the problem that ceramic clay materials are possibly poor in uniformity and stability due to long-term placement or in the transferring process can be solved.

The invention discloses a soft rock tunnel overexcavation backfill method, and relates to the technical field of tunnel construction.The soft rock tunnel overexcavation backfill method comprises the steps that a three-dimensional live-action image in a tunnel is scanned; establishing a three-dimensional live-action model according to the three-dimensional live-action image; establishing a digital twin model of the tunnel according to a design drawing; carrying out geometric intersection on the three-dimensional live-action model and the digital twin model to obtain geometric parameters of an overexcavation area; a concrete mold is subjected to 3D printing according to the geometric parameters of the overexcavation area; concrete is poured into the concrete mold, and a backfill body is formed; and the backfill body is backfilled to the overexcavation area. Due to the fact that the formed backfill body is tightly attached to the tunnel wall of the overexcavation area, the backfill precision is effectively improved, the construction quality is improved, the stability and the bearing capacity of the inner wall of the tunnel are enhanced, potential safety hazards are reduced, the concrete backfill work amount can be accurately controlled, the construction cost is reduced, and material waste is avoided.

The disclosure provides Si-free aluminum alloys comprising Ce, Zn, and Mg suitable for laser powder bed fusion (LPBF) 3D printing. The printed components can be subjected to hot isostatic pressing and further heat treated to provide 3D printed components exhibiting higher hardness than existing Al-Si based alloys produced under the same conditions. The Si-free aluminum alloy resists coarsening of second phase on HIP, retaining high strength and hardness. The alloy also does not need separate solutionizing and water quenching following HIP, thus saving cost, time and permitting design of more delicate and intricate geometries.

The utility model discloses high-strength polymer 3D printing equipment, and belongs to the technical field of printing equipment, the high-strength polymer 3D printing equipment comprises a printer body and an aligning mechanism, two first screw rods are rotatably embedded between the inner walls of the printer body, and a movable frame is sleeved between the outer surfaces of the two first screw rods in a threaded manner; through cooperation of two first screw rods, a moving frame, a second screw rod, a limiting rod and a mounting frame, a discharging barrel can conveniently move in the transverse direction and the longitudinal direction, printing work of a printer body is facilitated, alignment plates are located on the two sides of a discharging nozzle of the discharging barrel, the two sides of a printing material can be conveniently leveled, a mounting ring rotates, the two alignment plates are conveniently driven to conduct angle adjustment, and the printing efficiency is improved. The use height of the alignment plates is conveniently adjusted through the electric telescopic rods, the mounting screws rotate on the corresponding fixing frames, then the mounting blocks are conveniently driven to move, the distance between the two alignment plates is conveniently adjusted, the alignment mechanism can conveniently meet the printing requirements of different thicknesses, and the universality of the alignment mechanism is improved.

The invention provides a continuous fiber 3D printing nozzle structure and a composite material product, and belongs to the technical field of continuous fiber 3D printing manufacturing device.The nozzle structure comprises a hollow columnar spray head, a rolling device and a shell, the rolling device is located at the front end of the hollow columnar spray head, and the shell surrounds the periphery of the hollow columnar spray head; a storage cavity for storing filler is formed by the inner wall of the shell and the outer side wall of the hollow columnar spray head; the rolling device comprises a regular polygon mounting frame and rolling blocks, each edge of the mounting frame serves as a mounting shaft, each mounting shaft is rotationally provided with the corresponding rolling block, raw materials extruded from the hollow columnar spray head pass through a space defined by the multiple rolling blocks, and the rolling blocks are compacted on the surface of the extruded wire in the moving process of the 3D printing nozzle; a filler conveying assembly is arranged on the bottom wall of the shell and used for conveying filler in the storage cavity to the outer surfaces of the rolling blocks. According to the invention, the risks of fuzzing and wire breaking in the printing process of the wires can be reduced.

The invention provides a precision machining and 3D printing mixed manufacturing execution system, and relates to the technical field of data processing, and the system is used for dividing a three-dimensional model into a configuration area and a finishing area, generating a layer-by-layer closed contour path, obtaining configuration path data, extracting a boundary segment close to the finishing area, and obtaining a configuration path data set; calculating a space projection vector on a finishing target surface to obtain primary finishing path data; calculating a boundary torsion value; superposing interference offset in a historical sample path to a primary finishing path; calculating an interference amplitude index; the fitting path data and the configuration path data are subjected to path connection and unified processing according to the manufacturing sequence, and a mixed execution path instruction is obtained. Precise machining and 3D printing are integrated, and path overlapping, empty cutting or unnecessary machining is avoided.

The invention discloses a modular self-adaptive robot device based on SMA driving paper folding bionics. The modular self-adaptive robot device is composed of peak folding rods, valley folding rods, SMA wires, a magnetic attraction connecting structure and a 3D printing bottom plate, and self-adaptive operation is achieved through driving-sensing-structure integrated cooperation. The SMA wires have driving and sensing functions, structural deformation is driven through PWM, resistance change of the structural deformation is measured in real time, and axial telescoping, radial telescoping and bending of the module can be controlled in a closed-loop mode without an external sensor. The device is combined based on the lever amplification principle, tiny deformation of the SMA wire is efficiently converted into large-stroke output of a mechanism, and the problem that the stroke of an SMA driver is limited is solved. A single module has three modes of radial expansion, linear actuation and torsion joint, and complex movement can be completed through combination. A plurality of modules are connected in series with a quick connecting piece through magnetic attraction, and the functions of bionic wriggling, rod cable climbing or multi-section operation arm can be achieved through time sequence programming. And a flexible and reconfigurable robot solution is provided for detection and rescue tasks in a complex environment.

The application provides a kind of intelligent pressure monitoring 3D printing scoliosis orthosis, comprising: first body and second body;One or more inner grooves are respectively provided on the first body and the second body;Front groove is provided on the second body;The inner groove is filled with air bag, and pressure sensor is arranged in the recess of air bag, and pressure pad for contacting the skin of patient is arranged on the pressure sensor;Air tube is connected with inflatable and deflatable inflation pump, and the pressure sensor is connected with single-chip microcomputer arranged in the front groove by connecting line.The scoliosis orthosis according to the application is designed according to 3D scanning and completed by 3D printing, which can realize structure design such as hollowing, groove, trimming and catheter, solve the problem of traditional orthosis such as not breathable, not beautiful, waste material, the first body and the second body are connected by connecting rope, so that the orthosis body has a larger opening angle, which is convenient for patients to put on and take off and bandage pressure increase.

The invention provides a recombinant III-type humanized collagen gel based on a macromolecular crowding effect as well as a preparation method and application of the recombinant III-type humanized collagen gel. The method comprises the following steps: firstly, preparing an rhCol III solution system; then preparing a macromolecular crowding bath containing dextran 70, polyethylene glycol 8000 and ascorbic acid; then adding an rhCol III solution into the macromolecular crowding bath to form an rhCol III microgel; and finally, constructing a 3D printing molecular exclusion mold system which takes agarose as a substrate and contains a functional additive and a temperature-sensitive polymer as a temperature-sensitive release and spatial constraint component, so as to realize directional construction of the rhCol III microgel. According to the method disclosed by the invention, second-level physical gelling (lt; 15s) of rhCol is realized, and a physiological microenvironment supporting cell proliferation is constructed. The recombinant III-type humanized collagen gel prepared by the method can be used for preparing collagen microgel balls, collagen bundles, 3D (three-dimensional) bio-printing products and the like, and is wide in application range.

The utility model discloses a 3D printing porous pedicle screw which comprises a screw body part and a screw cap part, the screw body part comprises a cortical bone thread area close to one end of the screw cap part and a cancellous bone thread area far away from one end of the screw cap part, and a porous structure area is arranged at one end, not connected with the screw cap part, of the screw body part. The porous structure area comprises an inner core column extending in the axial direction of the nail body part, at least one reinforcing beam and a porous structure, the reinforcing beams extend outwards from the periphery of the inner core column, and the porous structure is annularly distributed on the outer periphery of the inner core column. The porous structure can efficiently induce bone tissue to grow in, the screw and a vertebral body are connected into a whole, stress is effectively dispersed, the stability of the screw is improved, the porous structure is arranged on the vertebral body at the front end of the screw, screw breakage caused by stress concentration of the screw in a vertebral pedicle area can be avoided, meanwhile, the stability of the screw can be better improved through the reinforcing beam, and the service life of the screw is prolonged. The possibility of fracture of a porous area of the screw is reduced, generalization performance is better, and the use experience feeling is improved.

The invention discloses a 3D printing self-adaptive control system for bone defect, and relates to the technical field of 3D printing self-adaptive control, a miniaturized optical coherence tomography, a high-resolution camera, a force sense and temperature sensor and the like are installed on an operation site, and the whole process of material deposition and solidification is monitored; then, deviation is rapidly recognized through an anomaly detection and error prediction model, defect positions are output, and a closed-loop control unit is combined with model prediction control and self-adaptive path planning to achieve online adjustment of key variables such as the extrusion amount and the printing speed; when the defect cannot be made up automatically through parameter adjustment, the system can trigger local shutdown and secondary repair, the forming quality is evaluated through multi-modal scanning and a repair scoring function after repair, and the high matching degree and mechanical stability of the final bone scaffold and the bone defect part are ensured; the cooperation of multi-modal sensing and local path planning enables the system to have higher adaptability.

The invention relates to the technical field of 3D printing, and discloses a slurry scraper device and 3D printing device.The slurry scraper device comprises a mounting structure, a rotation driving structure, a first adjusting structure and a second adjusting structure, by arranging the rotation driving structure, the mounting structure can rotate in the Z-axis direction, so that macroscopic adjustment can be conveniently conducted on the overall posture of a scraper, and the overall posture of the scraper is adjusted; the requirements of blade coating paths or angles in different working scenes can be met, and the applicability and the flexibility of the device are improved; the first adjusting structure is arranged on the mounting structure, so that the scraper slides back and forth in the Z-axis direction, the gap between the scraper and the surface of the base material is accurately adjusted, the blade coating thickness is effectively controlled, and the uniformity of a blade coating layer is improved; and due to the arrangement of the second adjusting structure, the scraper can rotate around the Y-axis direction, and fine adjustment control over the angle of the scraper is achieved, so that the blade coating angle is optimized, the slurry accumulation and trailing phenomena are reduced, and the smoothness of the blade coating surface is improved.

The invention discloses a multi-laser 3D printing beam spot verification method and system, and belongs to the technical field of laser processing control. The method comprises the following steps: acquiring multi-physical field signal data such as thermal response, stress, pressure and the like of a plurality of laser sources, and performing synchronous fusion to obtain comprehensive physical field data; extracting thermal response data of a laser beam spot area, and performing fusion analysis on the thermal response data and the comprehensive data to obtain position offset characteristic data; performing Fourier transform on the thermal response data, extracting frequency domain characteristic data, and further processing to obtain beam spot frequency characteristic data; generating verification standard data in combination with the self-adaptive thermal response threshold value; fusing external temperature, humidity and interference information to generate environment adaptability data, and obtaining optimized signal processing data; and finally, laser beam spot precision data is obtained. According to the scheme, the stability, the consistency and the intelligent response capability of the multi-laser system in a high-precision manufacturing scene are improved, the printing quality can be improved, the defect rate is reduced, and the service life of equipment is prolonged.

The utility model provides a 3D printing curing device which comprises a box body, a plurality of fixing assemblies, a plurality of fixing assemblies and a plurality of fixing assemblies. The bearing plate is arranged in the accommodating cavity, and the bearing plate is used for bearing a to-be-cured part; the light source structure is arranged in the containing cavity, the light emitting end of the light source structure faces the bearing plate, and the light source structure is movably arranged so that the light emitting end of the light source structure can irradiate different positions of the bearing plate. According to the 3D printing curing equipment, the problem that the curing effect of 3D printing curing equipment in the prior art is not uniform is solved.

The invention belongs to the technical field of metal-based composite material additive manufacturing, and particularly relates to a graphene titanium-based composite material additive manufacturing method based on machine learning, and the graphene titanium-based composite material additive manufacturing method based on machine learning comprises the following steps: collecting and preprocessing multi-modal data; constructing a multi-target prediction GNN model and carrying out model training and evaluation to obtain an optimal GNN model; the optimal GNN model is optimized through a second-generation non-dominated sorting genetic algorithm, and a multi-objective optimization result is obtained; a qEHVI Bayesian optimization algorithm is adopted to screen out an optimal parameter group from the multi-target optimization results; and 3D printing verification and closed-loop iteration are carried out. According to the method, machine learning prediction, 3D printing verification and data feedback are integrated into a closed-loop iteration system, dynamic optimization of'parameter recommendation-> 3D printing-> performance testing-> model updating 'and autonomous optimization of material performance are achieved, and research and development efficiency is remarkably improved.

The invention discloses a preparation method and application of a wind cap of a circulating fluidized bed gasifier, the wind cap is arranged at the bottom of a gasifier body, the wind cap mainly comprises a wind cap gas inlet, a wind cap gas outlet and a wind cap gas flow channel, and the wind cap gas flow channel is composed of a Tesla valve fluid channel. The air cap is prepared from modified fly ash through a combined method of freezing ball-milling nano modification, 3D printing coupling microwave-assisted sintering and salt bath chromizing strengthening. According to the method, a large amount of solid waste of fly ash can be consumed to realize carbon emission reduction, the efficiency of the circulating fluidized bed can be improved through structural optimization, meanwhile, the preparation cost of the hood can be reduced, and the method has relatively high application and popularization values.

A dual-switch 3D print head having synergistic printing of resin and continuous fibers, the print head comprising a main frame (1), wherein a resin head extrusion mechanism (3) is provided on the main frame (1); the main frame (1) is connected to a continuous fiber printing mechanism (6) by means of a dual-nozzle switching mechanism (2); a continuous fiber cutting mechanism (7) and a wire feeding and clamping coordination mechanism (63) are provided on the continuous fiber printing mechanism (6); the continuous fiber printing mechanism (6) comprises a continuous fiber printing mounting plate (61); a fiber clamping mounting base (631) is provided on one side of the top of the continuous fiber printing mounting plate (61); a fiber clamping actuator is mounted on the fiber clamping mounting base (631); a clamping connecting rod (635) is movably connected to the end of the fiber clamping actuator; the other end of the clamping connecting rod (635) is connected to a fiber guide wheel (633); a wire feeding gear (634) is provided beside the fiber guide wheel (633); and the wire feeding gear (634) is mounted on the continuous fiber printing mounting plate (61). The dual-switch 3D print head can ensure the precision of the relative positions between dual nozzles during multiple switchings for a long time, and also achieve the organic combination of active wire feeding and passive wire feeding for a continuous fiber wire material is also realized, thereby realizing high-quality printing of continuous fibers.

The invention discloses a high-throughput continuous switching food 3D printing method and system. The method comprises the steps that a printing target three-dimensional model is selected, layered slicing is conducted on the printing target three-dimensional model in the Z-axis direction, and multiple layers of printing images are generated; converting the multi-layer printing image generated by slicing into a material information matrix based on a gray threshold; printing parameters are set, a material switching advance distance and material switching section variable speed optimization are set according to material physical properties, and a continuous switching food 3D printing G-code control instruction is generated based on the material information matrix. According to the method, accurate segmentation and path coherence control of a multi-material area can be achieved in combination with the rheological property of the food material, so that the high-throughput printing requirement is met while the pattern fidelity is guaranteed, stable deposition and accurate pattern reproduction of the food material can be achieved in the fast switching process of the same spray head, and the printing efficiency is improved. And the comprehensive performance of food 3D printing in complex model manufacturing and high-throughput production can be improved.

The invention relates to a reaction type closed diamine chain extender, dual-curing photosensitive resin, a 3D printed part and a preparation method, the reaction type closed diamine chain extender is obtained through reaction of a diamine chain extender and a functional monomer, the functional monomer at least comprises a functional group A, a functional group B and a functional group C, the functional group A is an aldehyde group or a ketone group and is used for reacting with an amino group in the diamine chain extender; and a functional group B containing a photocurable unsaturated bond. The reactive closed diamine chain extender provided by the invention participates in a photocuring process, so that the strength of a material in a photocuring stage is improved, the product yield in a printing process is ensured, no by-product is generated during subsequent heat treatment, and the mechanical property of a final finished product is not influenced. The dual-curing photosensitive resin can be stably stored for a long time, the mechanical property of the material can be remarkably improved through the photocuring-heat treatment synergistic effect, and the dual-curing photosensitive resin can be used for photocuring 3D printing technologies such as sinking type SLA and pull-up type DLP and LCD at the same time.

The invention provides a micro-miniature semi-tilting unmanned aerial vehicle and a control method thereof.The unmanned aerial vehicle comprises a main body structure, a coaxial double-paddle system, a tilting double-rotor system, a full-motion control surface assembly, a flight control system and a power supply assembly; the main body structure is composed of a carbon fiber carbon plate, a carbon tube and a 3D printing photosensitive resin part, and light weight and rigid supporting are achieved; the coaxial double-propeller system provides main lift force and counteracts reverse torsional moment; the double-rotor system is tilted, and a lift force / thrust mode is switched; the pneumatic efficiency of the tilting rotor wing is improved by the full-motion control surface assembly; the control method comprises a low-speed mode and a high-speed forward flight mode, the vertical take-off and landing, hovering and high-speed cruising are integrated, the structure is simplified, the stability is improved, and the cost is low.

According to the 3D printing concrete truss girder structure based on three-dimensional steel bar reinforcement and the construction method, through space welding connection of the three-dimensional conical steel bars and the top plane steel bars, the interlayer bonding performance and the overall stress performance of a 3D printing concrete truss girder are remarkably improved. The three-dimensional conical steel bars comprise plane steel bars matched with the truss girder in length and width and a plurality of three-dimensional conical steel bar units, the three-dimensional conical steel bar units are arranged in the mode that the height of a three-dimensional space component formed by bending metal steel bars crosses over at least one or more concrete printing layers, and the plane steel bars are buried in the lower layer concrete. And the upper ends of the three-dimensional conical steel bar units are fixedly connected with the top vertical rod section steel bars of the top plane steel bars on the upper layer or the higher layer or the vertical bars of the next plane steel bars, so that an integral space steel bar framework is formed. The steel plate has higher shear bearing capacity, better ductility and a better failure mode, and is suitable for load-bearing components in various building and bridge engineering.

The invention discloses a YOLO-Drop-based 3D printing droplet microfluidic immunoassay method, which organically integrates a high-precision microfluidic chip preparation technology, a droplet-level immunoreaction system and a fluorescence imaging acquisition and deep learning detection algorithm. And full-chain closed-loop processing from droplet generation, fluorescence signal acquisition, image recognition, result statistics to concentration quantitative analysis is realized. Through deep combination of chip physical parameters and model input features, the method not only significantly improves the accuracy and stability of droplet identification and concentration quantification, but also enhances the robustness of the algorithm under complex sample conditions through multi-scale feature fusion and a signal dual screening mechanism. Meanwhile, the optimized YOLO-Drop model supports embedded efficient reasoning, so that the whole analysis process has the characteristics of real-time performance and high throughput, and the method is suitable for rapid quantitative detection of various biomarkers.

The invention relates to a rib material and a preparation method thereof, and a 3D printing concrete reinforced member and a preparation method thereof. The rib material comprises at least two shoulder parts which are located on interlayer interfaces of the 3D printing concrete and stride over at least two strip-to-strip interfaces; at least three legs located inside the substrate and penetrating the at least one interlayer interface; and the shoulder parts and the leg parts are mechanically connected between the strips and between the layers at the same time. The technical problem to be solved by the invention is how to provide a rib material capable of forming connection between interlayer and strip interfaces at the same time so as to realize bidirectional reinforcement.

The application discloses a kind of metal powder powder laying mechanism and 3D printing device, it is related to metal powder processing technical field, it aims at solving the technical problem that traditional 3D printing device is low in functionality, it is difficult to realize the laying of single layer multiple metal powder, including double-shaft moving component, L type seat, drive assembly and powder laying component.The round material cavity of the application is separated from the ring material cavity design, different metal powder can be stored respectively, when half cylinder is rotated to the inclined state, pre-storage material groove A and pre-storage material groove B are communicated with the outside, half cylinder and convex column constitute scraping flat form, drive assembly is used to drive rotation, complete the synchronous laying of multiple metal powder in single layer, when half cylinder is rotated to the horizontal state, the bottom surface of half cylinder is flush with the bottom surface of convex column, half cylinder and convex column constitute compacted form, convex column and half cylinder are driven to descend using double-shaft moving component, and the metal powder after scraping is compacted, reduce the gap between metal powder, effectively improve the density of metal powder.

The invention discloses a manufacturing method of a 3D printing guide plate for a cervical vertebra single-door operation, and relates to the technical field of crossing of medical auxiliary instruments and additive manufacturing. Firstly, a cervical vertebra CT data three-dimensional reconstruction skeleton model is obtained, an operation scheme is virtually planned, then a navigation template digital prototype is generated through parameterization, finite element simulation optimization is carried out, and a three-dimensional 3D printing guide plate for the cervical vertebra single-door operation is obtained. Printing with the biocompatible resin by using light curing equipment, and finally treating to obtain a final product. According to the method, a high-precision cervical vertebra skeleton model is generated through CT thin-layer scanning and three-dimensional reconstruction, parameters of a hinge area, a door opening groove line and a nail path are determined through virtual planning, and the problem that damage or positioning deviation is easily caused due to the fact that a traditional operation depends on experience is solved; constructing a navigation template attaching curved surface by a specific algorithm, reserving a soft tissue compensation gap, matching with a hollow window bulge to limit the depth of an abrasion drill, controlling the deformation of a guide plate through finite element simulation and topological optimization, selecting specific resin to ensure the stability, ensuring the suitability by virtue of virtual registration and standardized manufacturing, and improving the accuracy, safety and efficiency of an operation.

The invention discloses a broadband high-isolation millimeter wave dual-circular polarization multi-beam antenna, which comprises a 3D printing medium polarization grating lens and a millimeter wave dual-linear polarization antenna array, and is characterized in that the millimeter wave dual-linear polarization antenna array is located on a horizontal focal plane of the 3D printing medium polarization grating lens. Wherein the millimeter wave dual-line polarized antenna array adopts a folded medium integrated waveguide structure for feeding, so that high isolation is realized. A planarized millimeter wave dual-line polarization antenna array is used as a feed source antenna, and dual-line polarization-dual circular polarization conversion is realized through a 3D printing medium polarization grating lens; and the horizontal and vertical components of the + / -45-degree dual-linear polarized waves are equal in amplitude after passing through the polarized grating lens, and the phase difference is 90 degrees, so that dual-circular polarized waves are formed. The feed source array and the lens are arranged in a spaced mode, high gain and + / -45-degree scanning coverage are achieved, the design problem of a traditional dual-circular-polarization feed source is avoided, the complexity and cost of the system are remarkably reduced, and the deployment feasibility of a 5G / 6G millimeter wave terminal is improved.