59 results about "Large format" patented technology

The invention relates to a large-breadth flexible damage sensing material and a preparation method thereof, belongs to the field of intelligent material preparation, and solves the problem that large-scale preparation of the large-breadth flexible damage sensing material is difficult in the prior art. The invention discloses a large-breadth flexible damage sensing material and a preparation method thereof. The large-breadth flexible damage sensing material comprises a flexible substrate layer, a conductive layer and a packaging layer, wherein the conductive layer is superposed on the flexible substrate layer; the packaging layer covers the conductive layer; the conductive layer is made of a laser-engraved polyimide film, a functional laser-induced graphene structure and an auxiliary separation structure which are etched by a laser engraving machine are arranged on the conductive layer, and the auxiliary separation structure comprises a film through hole and an edge cutting line; the large-breadth flexible damage sensing material provided by the invention is high in fineness, stable in performance and capable of meeting large-breadth sensing application, the preparation method of the large-breadth flexible damage sensing material is simple in step and high in preparation efficiency, and the large-breadth flexible damage sensing material which is stable in performance and high in fineness can be prepared in batches.

The invention belongs to the technical field of 3D printing additive manufacturing, and provides a large-breadth 3D printing local area double-camera grafting printing device and method.The large-breadth 3D printing local area double-camera grafting printing device comprises an image collecting device, a high-precision ceramic calibration plate, a to-be-grafted part clamp and a printing equipment upper computer; the double cameras are fixed on an equipment top plate through supports, the field of view of the large-field-of-view camera completely covers the whole breadth of the substrate, and the field of view of the small-field-of-view camera completely covers a local area to be grafted; the calibration plate is divided into two specifications of adaptive double cameras, the clamp can be used for detaching and fixing parts and leveling a grafting surface, and the upper computer is electrically connected with the double cameras and the printing equipment to receive positioning data and adjust a printing model; according to the method, the grafting precision is smaller than or equal to 0.1 mm, the total cost of the double cameras is reduced, the manual workload is reduced, the problems that according to an existing scheme, coverage and precision are contradictory, cost is high, and automation is low are solved, and the method is suitable for large-format 3D printing local grafting scenes.

The application discloses a bending machine deformation detection mechanism and method, which comprises a deformation sensor and a control system; the bending machine comprises a lower side plate and a slider located directly above the lower side plate, and the height of the slider can be lowered; a deformation proportionality coefficient K is built in the control system; wherein the deformation proportionality coefficient K is the ratio of the elastic deformation A of the slider to the elastic deformation B of the lower side plate; the deformation sensor is arranged on the lower side plate or the slider and can be used for detecting the elastic deformation of the lower side plate or the slider. The application can realize real-time detection of bending deformation while saving cost. Especially when bending a large-format thick plate, the bending precision of the plate can be improved, and the waste of the plate can be reduced. Especially when the application is equipped with the function of an intelligent bending production line, closed-loop real-time intelligent automatic control can be realized. Further, the application can calculate and compensate the initial deviation of the upper and lower dies, so that the installation and debugging are more convenient.

The utility model relates to the technical field of optical devices, in particular to a shutter assembly and a slit type large-format scanning camera, the shutter assembly comprises a film box, a slit scanning mechanism and a linear driving mechanism, and a photosensitive component is arranged in the film box; the gap scanning mechanism comprises a bearing part and a rigid insertion sheet; the bearing part is in guide fit with the film box; the rigid insertion sheet is inserted into the film box, two ends of the rigid insertion sheet are fixed on the bearing component, and a gap is formed in the rigid insertion sheet; the linear driving mechanism comprises a supporting part, a driving part and a transmission part, and the driving part is arranged on the supporting part; the transmission part is arranged on the supporting part and is in transmission fit with the driving part, and the transmission part is connected with the bearing part. According to the utility model, the driving part and the transmission part in the linear driving mechanism are matched to realize the rapid and slow linear motion of the bearing part, so as to drive the rigid insertion sheet to stably scan the photosensitive part and ensure that the light is irradiated on the photosensitive part in an accurate slit form, and the high-quality and high-resolution imaging effect can be obtained.

The application belongs to the technical field of precision laser processing, and specifically discloses a laser micro-drilling and cutting device and method for a metal foil lead frame, which comprises a processing platform, a clamp, a three-axis motion system, a scanning galvanometer and an ultraviolet nanosecond pulse laser. The clamp applies a pre-tension to the metal foil through a screw rod mechanism and integrates a laser displacement sensor to monitor thermal deformation in real time. The three-axis motion system and the scanning galvanometer cooperate to realize three-dimensional accurate positioning, and a reflection system dynamically regulated by multiple mirrors is combined to ensure that the laser is vertically incident. The method comprises clamping and focusing, image processing and path planning, multi-directional scanning processing and post-processing. The application solves the problems of thermal deformation suppression and micron-level feature accuracy maintenance in large-format processing through optical-mechanical coupling multi-axis linkage control, has the advantages of high precision, environmental protection and high efficiency, and is suitable for the preparation of ultra-thin metal foil lead frames.

The utility model discloses a connecting mechanism for a large-format scanner, which comprises a scanner upper frame body, a scanner upper frame bottom plate, a fixed connecting assembly and a movable connecting assembly, and the scanner upper frame body and the scanner upper frame bottom plate are made of different materials. And the scanner upper frame bottom plate is movably connected with the scanner upper frame body through a group of fixed connecting assemblies and a plurality of groups of movable connecting assemblies. By means of the mode, according to the connecting mechanism for the large-format scanner, the fixed connecting assembly and the movable connecting assembly are matched with each other, so that when products are transported, stored and used under different temperature conditions, the products are convenient to transport, store and use, and the working efficiency is improved. The problem of deformation of product parts caused by internal stress due to different length changes of different materials during thermal expansion and cold contraction can be reduced or avoided, the product quality and the functional effectiveness and stability are greatly improved while the stability of the overall structure of the product is guaranteed, disassembly and assembly are convenient, and the working efficiency is improved.

The invention relates to a large-breadth flexible damage sensing material and a preparation method thereof, belongs to the field of intelligent material preparation, and solves the problem that large-scale preparation of the large-breadth flexible damage sensing material is difficult in the prior art. The invention discloses a large-breadth flexible damage sensing material and a preparation method thereof. The large-breadth flexible damage sensing material comprises a flexible substrate layer, a conductive layer and a packaging layer, wherein the conductive layer is superposed on the flexible substrate layer; the packaging layer covers the conductive layer; the conductive layer is made of a laser-engraved polyimide film, a functional laser-induced graphene structure and an auxiliary separation structure which are etched by a laser engraving machine are arranged on the conductive layer, and the auxiliary separation structure comprises a film through hole and an edge cutting line; the large-breadth flexible damage sensing material provided by the invention is high in fineness, stable in performance and capable of meeting large-breadth sensing application, the preparation method of the large-breadth flexible damage sensing material is simple in step and high in preparation efficiency, and the large-breadth flexible damage sensing material which is stable in performance and high in fineness can be prepared in batches.

1. The name of the design product: large-format laser cutting machine protective cover (H4.0). 2. The use of the design product: used in the process of laser cutting protection, to avoid laser damage to the human body, while protecting the internal structure of the cutting machine. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

An overflow recess for assisting in manufacturing a wick and a wick manufacturing method, relating to the technical field of wick manufacturing. The overflow recess comprises a second recess body, a liquid inlet pipe (2-2) and a frame body (1); the liquid inlet pipe (2-2) communicates the outside of the second recess body with the overflow recess; two surfaces of the frame body (1) that are not adjacent to each other are hermetically connected to two surfaces of the second recess body that are not adjacent to each other; gaps are provided between the other two surfaces of the frame body (1) and the other two surfaces of the second recess body; the gaps are used for accommodating a workpiece (2) to be processed when the manufacturing of a wick is assisted; an overflow port is provided on the frame body (1); during manufacturing, by means of coupling between the high-speed movement of a laser galvanometer and the movement of the workpiece (2) and coupling between continuous liquid and air processing, a large-format recess structure can be manufactured, and the recess size is easy to adjust. The design of the overflow recess allows for an one-step wick manufacturing process, and achieves high-surface-quality, highly flexible and efficient processing of a large-aspect-ratio primary recess structure on an ultra-thin metal surface, thereby improving the processing efficiency of multi-stage recess structures.

The utility model relates to the field of photovoltaic cell panel testing, and discloses a large-breadth assembly PL testing system which comprises a profile frame, two ends of the profile frame are fixedly connected with first linear guide rails, and the top ends of the first linear guide rails are connected with metal plate supporting vertical plates in a front-back sliding mode. A first linear guide rail is fixedly connected to the top end of the metal plate supporting vertical plate, a rectangular groove is formed in the middle of the second linear guide rail, a ruler is fixedly connected to the front end of the second linear guide rail, and the first linear guide rail, the metal plate supporting vertical plate, the second linear guide rail, a Y-axis crank handle and an X-axis lead screw are arranged; the positions of the optical fiber coupling laser and the CCD infrared camera can be adjusted, the operation is simple, and the movable range is not less than 1000 * 1000 mm.

The application provides a large-format PCB panel accurate positioning method with repeated elements, which comprises nine-point calibration, initialization of industrial camera parameters, combination of pyramid downsampling and Hough circle detection for coarse positioning of Mark points and sub-pixel level accurate positioning of the algorithm for circle detection by using a caliper for positioning of two Mark points of the upper left and the lower right, conversion of the coordinates of the point set in the DXF coordinate system into pulse coordinates, conversion into pixel coordinates of the pixel coordinates of the component coordinate point set by combining the shot position information, and removal of repeated component coordinate information on the left and right adjacent FOVs through a KNN algorithm, so that high-accuracy, high-precision and strong-adaptive rapid positioning detection is realized, and each component on different PCB products can be accurately positioned and detected quickly and accurately, and the efficiency of electronic component defect detection in the PCB panel is greatly improved.

This application provides a multi-grayscale mask continuous molding method, comprising: slicing a 3D model into equal-thickness slices, then dividing them according to a projection device splicing mode; eliminating seams at the splicing points using an edge energy homogenization method; exposing the segmented unit mask images onto the resin surface in a combined splicing projection manner according to the curing sequence; controlling the ultraviolet light during the projection process using an optimal grayscale modulation formula during the curing process of each slice to complete single-layer curing. For resin slurries with good fluidity, the multi-grayscale mask continuous molding scheme of this application can complete the continuous molding of large-format 3D models with high quality, resulting in good surface quality and high molding accuracy. For ceramic slurries with poor fluidity, compared with the traditional CLIP-prepared 3D models, the model size is increased while maintaining the advantages of high molding accuracy and fast printing speed of CLIP, indicating that this scheme has high practical application value.

This invention discloses a scanning 3D printing method, relating to the field of 3D printer technology, comprising: converting a sliced ​​image into a vector image, and then rasterizing it into a finer bitmap image according to a specified precision; achieving a smaller grid precision by tilting the DMD; exposing sliced ​​images with a vertical dimension far exceeding the DMD's width by scrolling image flipping; obtaining the energy conversion rate curve of the laser corresponding to each exposure lens through laser energy calibration, and ensuring that the light output power of each lens remains consistent based on this curve; adjusting the angle magnification of the exposure lenses to ensure that the angle and magnification of the lenses to be stitched meet the precision requirements; observing the stitching status by projecting a pre-designed stitching image, and fine-tuning the lens position if the requirements are not met; this invention can perform large-format 3D printing, improve printing precision and the smoothness of the printed object's edges, and solve printing defects caused by distortion and uneven light field of large-format projection lenses.

Systems, methods, and apparatus for attaching additive manufactured components. The systems, methods, and apparatus include large format additive manufacturing (LFAM) component having a LFAM interior surface. The first FDM component may be coupled a large format additive manufacturing (LFAM) component having a LFAM interior surface. The first exterior surface may have a first textured shape that is complementary to the LFAM textured shape. The systems, methods, and apparatus include a second fused deposition modeling (FDM) component having a second exterior surface. The second FDM component may be coupled to the first FDM component.

The utility model provides large-breadth laser groove cutting equipment which comprises a working mechanism which comprises a first linear sliding rail, a supporting plate arranged at the top of the first linear sliding rail, a top plate arranged at the top of the supporting plate, a fixing block arranged on one side of the top plate and a hydraulic cylinder arranged at the bottom of the fixing block. The pushing rod is arranged at the bottom of the hydraulic cylinder, the pushing hopper is arranged on one side of the pushing rod, the pushing groove is formed in the pushing hopper, the limiting blocks are arranged at the two ends of the pushing rod, the limiting plate is arranged on one side of the supporting plate, and the limiting groove is formed in one side of the limiting plate. After cutting is completed, a hydraulic cylinder drives a pushing rod to move downwards, limiting blocks on the two sides of the pushing rod are clamped into limiting grooves in a limiting plate for limiting and supporting, and a first linear sliding rail drives the pushing rod to move; and the materials enter the pushing groove in the pushing hopper on one side of the pushing rod and are pushed to one end to be taken.

This invention discloses a visual positioning method for laser cutting equipment, relating to the field of laser cutting visual positioning technology. The method includes the following steps: S1, Image Acquisition: Image information of the laser-cut workpiece is acquired through a visual acquisition module, which includes an external binocular industrial camera and a coaxial vision camera. The external binocular industrial camera is fixed to the crossbeam of the laser cutting machine tool and is used to acquire a large-format overall image of the workpiece. The coaxial vision camera is coaxially set with the laser cutting head via a beam splitter and is used to acquire a local precision image of the workpiece. This visual positioning method for laser cutting equipment, by using an external binocular industrial camera with a telecentric lens and a coaxial vision camera with a coaxial light source and polarizer, combined with distortion correction, sub-pixel edge detection, and other algorithms, effectively reduces errors caused by perspective distortion, high reflectivity interference, and lens distortion.

The utility model provides an integrated powder laying resistance detection device, which relates to the technical field of 3D printing and comprises a guide rail assembly, a mounting seat, a force transducer and an integrated scraper holder, two sides of the integrated scraper holder are slidably connected with the guide rail assembly through the mounting seat, and a scraper is arranged on the integrated scraper holder. The integrated scraper frame is used for collecting powder laying resistance data borne by the scraper in the working process. According to the utility model, the force measuring sensor is flexibly arranged in the integrated scraper holder, the sensitivity of large-format powder laying resistance detection is improved, an internal wiring mode is adopted, the reliability of the powder laying resistance detection device is improved, the powder laying resistance detection device can adapt to large-format SLM equipment, and the forming efficiency, the forming quality and the reliability can be further improved.

The invention relates to the technical field of ink-jet printing, solves the problems that in the prior art, shooting and processing time of a large-format image is long, and printing efficiency is affected, and provides a printing target segmented adjusting, splicing and positioning method, device and equipment and a storage medium. The method comprises the following steps: splitting an image to be printed into a plurality of segmented images according to segmentation parameters; acquiring a first positioning deviation parameter of the first printing segmented image in the plurality of segmented images; initial positioning point position information of other segmented images except the first printed segmented image in the plurality of segmented images is calculated according to the first positioning deviation parameter and the segmentation parameter; acquiring actual positioning point position information of each segmented image; and adjusting and splicing the segmented images according to the initial positioning point position information and the actual positioning point position information to obtain a target printing image. The printing speed is not limited by the size of a printing medium, the printing efficiency is improved, and the printing precision is improved by adopting a segmented positioning mode for positioning treatment.

The application discloses a large-size high-precision double-light-source light-curing forming path planning method and belongs to the technical field of light-curing 3D printing of additive manufacturing. The application is aimed at the problems that the traditional single-light-source system is difficult to balance the efficiency and the precision, the existing double-light-source path planning adopts a static regional strategy, which leads to low planning efficiency, insufficient regional adaptability, poor local precision and lack of intelligent feedback linkage with the forming process, and based on the fusion technology of CNN neural network and genetic algorithm, a whole-process closed-loop system of "slice preprocessing-regional adaptation-path optimization-intelligent generation-forming linkage" is constructed, through double-light-source system modeling, slice regional segmentation and adaptation, intelligent path generation and double-light-source linkage control, the intelligent optimization of the large-size light-curing forming path is realized. The application balances the forming efficiency and the printing precision, adapts to the large-format light-curing forming scene, has strong system stability, greatly reduces the printing time and can effectively improve the forming quality and the manufacturing efficiency of the large-size workpiece.

This application provides a three-dimensional large-format high-definition scanning system and scanning method. The three-dimensional large-format high-definition scanning system includes a positioning support component, an X-axis movement component, a Y-axis movement component, a Z-axis movement component, an image acquisition component, and a control unit. The image acquisition component includes a camera unit and an illumination unit. The components work together, in conjunction with a specific scanning trajectory and a dynamic illumination switching mechanism, to achieve high-definition three-dimensional scanning of a large-format object to be scanned.

1. The name of the design product: digital inkjet printing machine (large format). 2. The use of the design product: the product of the design is used for printing. 3. The design points of the design product: the combination of shape, pattern and color. 4. The picture or photo that best indicates the design points: perspective view. 5. The design for which protection is sought includes color. 6. The bottom view of the design product is not easily visible or not visible when in use, and the bottom view is omitted.

This application discloses an equipment component for a wide-format container floor and a container reference frame. The container includes a body and a floor component. The body has a reference frame with an installation area. The floor component is disposed in the installation area. The floor component includes an integrally formed first plate whose width matches the width of the installation area. The first plate has a first defined reinforcement direction and a first oriented strand layer, wherein at least the first oriented strand layer is laid along the first defined reinforcement direction. This floor component allows for convenient installation, reduces seams in the width direction, helps ensure the flatness of the floor component's surface, and has relatively high strength.

The application discloses a large-format double-laser printing task dynamic coordination distribution method, which comprises the following steps: firstly, layering the printing pattern; then, partitioning based on the median line of each layer width direction and calculating the difference between the average area of each layer printing pattern and the actual printing area of any laser galvanometer scanning system; judging whether the current partition scheme is balanced; if not, adjusting the position of the partition line using the gradient descent method until the balanced condition is met, and taking the partition line meeting the balanced condition as the final partition line; otherwise, taking the median line as the final partition line; finally, two laser galvanometer scanning systems perform printing operation on their respective task partitions. The application can dynamically adjust the partition through the gradient descent method and real-time area calculation, and can adaptively balance the processing task quantity of the two laser beams, especially for asymmetric complex patterns, so that the overall processing output efficiency is significantly improved, and the processed patterns are clear and high in precision.

The selective laser melting forming method comprises the following steps that a three-dimensional mathematical model of a part is obtained, a face needing to be supported is recognized and marked as a supporting face, edge supporting pieces are added to the edge of the supporting face of the part, and inclined pieces are added to the inner sides of the edge supporting pieces; retracting the bottom of the edge supporting sheet, so that the edge supporting sheet and the longitudinal test bar are in smooth transition; the length direction of the rib-shaped supporting sheet is in the normal direction of the outer circle of the flange, the top of the rib-shaped supporting sheet is connected with a part supporting surface, the bottom of the rib-shaped supporting sheet is connected with the edge supporting sheet, and the two side surfaces are not connected with the inclined sheet and the edge supporting sheet; powder cleaning hollows are additionally formed in the edge supporting sheets, and powder cleaning holes are additionally formed in the inclined sheets; combining all supports into one support body, and sequentially arraying a plurality of support bodies along the outermost circle of the flange; adding a bottom fillet at the bottom; and slicing is carried out, and slicing information is imported into equipment for printing. The shrinkage amount of the flange is greatly reduced, smooth printing is guaranteed, and meanwhile supporting materials are saved.

The utility model relates to the technical field of large-breadth infrared telecentric lens scanning, and discloses a large-breadth flange type telecentric field lens, and the main body of the field lens comprises a lens barrel and five lenses which are sequentially arranged along the light beam propagation direction. The first lens is of a biconcave structure, and the focal length is negative. The second lens is of a meniscus structure, and the focal length is positive. The third lens is meniscus-shaped, and the focal length is positive; the fourth lens is in a large-aperture plano-convex shape, and the focal length is positive; the fifth lens is a protective window lens and is in a large-aperture biplane shape, and the focal length of the fifth lens is infinite. And each lens is fixed in the lens cone through a threaded pressing ring. The focal length of the field lens main body is F420, the processing breadth is 200 * 200 mm, the central field angle is less than 0.5 degree, and the edge field angle is less than 3 degrees. Through reasonable optical design, combination of long focal length and large breadth processing is realized, the problems that an existing field lens is short in applicable focal length range and can only be used for small breadth processing are solved, and applicability and flexibility of the field lens in an industrial processing scene are effectively improved.

The invention discloses a processing method for large-format spot drilling based on visual guidance and an automatic spot drilling robot, and the processing method comprises the steps: building a multi-feature template through a visual processing system, and achieving the automatic recognition, coordinate conversion and precise spot drilling of various character features of a large-format painting through the combination of visual recognition positioning and precise motion control. According to the invention, a discontinuous processing mode and a continuous processing mode are set, so that the spot drilling processing efficiency is greatly improved, the problems of low processing efficiency, poor precision and incompatibility with large breadth in the prior art are solved, and the spot drilling machine has the advantages of high automation degree and high spot drilling qualification rate, and is very suitable for batch spot drilling processing of large-breadth paintings.

The invention relates to the technical field of stereo projection, and provides a vibration liquid spraying 3D stereo projection method, device and system, and the device comprises a vibration liquid spraying module, a projection module and a control module. According to the specific working mode, the vibration liquid spraying module sprays a liquid level and sends a vibration position signal to the control module, so that the vibration position corresponding to the current liquid level is determined, and the control module controls the projection module to project an image corresponding to the liquid level of the current vibration position; by using the persistence of vision, through rapid reciprocating vibration and projection of an image corresponding to a vibration position, a 3D image can be viewed from any position. The technical route is easy to implement, the 3D projection effect is good, and large-format 3D projection can be achieved through array arrangement.

The invention provides a TPCD high-precision ultra-large breadth detection motion platform, and the platform comprises a steel frame module which is formed by welding a plurality of steel frames in a structure shaped like a Chinese character'tian '; the marble base is arranged at the top of the steel frame module; marble stand columns are arranged at the left and right ends of the top of the marble base, X-direction sliding rails are arranged at the tops of the marble stand columns, and magnetic preloading strips are arranged on the left and right sides of the marble stand columns; the X-direction mover module is arranged on the X-direction sliding rail and moves along the X-direction sliding rail; the X-direction mover module is in air floatation on the marble stand column and is in magnetic suspension on the preloading strip; the cross beam is arranged at the top of the X-direction mover module and moves along with the X-direction mover module; a Y-direction sliding rail is arranged on the rear side of the cross beam; the Y-direction mover module is arranged on the Y-direction sliding rail and moves along the Y-direction sliding rail; the Y-direction mover module is air-floated on the cross beam; and the drag chain module is arranged at the top of the cross beam and is not in contact with the Y-direction mover module. According to the invention, the large breadth and the large span are realized, the submicron motion precision is realized, and the TPCD measurement requirement of the FMM is met.