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1360results about "Optical surface grinding machines" patented technology

Aspherical laser polishing precision online detection and feedback system for AI silicon carbide lens

The invention relates to the technical field of optical engineering, in particular to an AI silicon carbide lens-oriented aspheric laser polishing precision online detection and feedback system. Comprising a detection module; the data processing module is electrically connected with the detection module and used for constructing a lens surface three-dimensional model and calculating polishing precision parameters; the feedback control module is electrically connected with the data processing module, is used for generating a feedback control strategy and comprises a strategy generation unit and a parameter optimization unit; an execution module; and an intelligent learning module. According to the design, a laser measuring head, an energy sensor array and an environment sensor are integrated through the detection module, synchronous acquisition of multi-dimensional data such as surface profile, laser energy distribution and environment parameters is realized, and three-dimensional point cloud data with consistent time and space are generated through multi-modal fusion processing (time domain synchronization, space registration and feature enhancement) of the data preprocessing unit; the physical essence of the polishing process is completely represented, and the detection comprehensiveness and the data relevance are improved.
Owner:ANNAIYI (HANGZHOU) SEMICONDUCTOR MATERIALS CO LTD

Precise polishing grinding head capable of being partitioned and deformed controllably

The invention belongs to the technical field of precision machining equipment, and discloses a partitioned and deformation-controllable precision polishing grinding head which comprises a partitioned base, a positioning block is arranged in the center of the lower portion of the partitioned base, at least one connecting rod assembly is arranged above the partitioned base, and the top end of each connecting rod assembly is connected with a curvature adjusting head. A flexible polishing head is arranged above the curvature adjusting head, a protective shell is arranged on the outer side of the connecting rod assembly, the flexible polishing head and the protective shell are connected through a grinding head frame, and the whole device is provided with a drive circuit. According to the precise polishing grinding head capable of being partitioned and deformed controllably, through the partitioned base and the independent shape memory alloy driver, the curvature radiuses of the center and the edge of the flexible polishing head are controlled, the edge pressure is optimized, stable contact rigidity and uniform pressure distribution are brought, and finer surface shape control is achieved; the shape memory alloy driver is a solid-state element and is matched with the transverse amplification connecting rod, and needed driving force and displacement can be achieved in a relatively compact space.
Owner:JIMEI UNIV

Magneto-rheological polishing polyhedral co-body element integrated machining pose calculation method

The invention relates to the technical field of optical processing, in particular to a magneto-rheological polishing polyhedral co-body element integrated processing pose calculation method, which comprises the following steps of: determining a track fragment corresponding to each mirror body during processing according to the surface of each mirror body in a to-be-processed polyhedral co-body element; an ideal polishing track during machining is obtained by combining the track fragments corresponding to the mirror bodies; setting a polishing gap of a machining tool during machining, and determining a normal of each point of a mirror body in the multi-surface common-body element; according to the polishing gap and the normal of each point, the actual polishing track of the machining tool and the machining posture of the machining tool are obtained, and the machining posture of the machining tool is obtained. According to the invention, the integrated processing pose control of the coaxial multi-surface common-body element is realized, and the multi-section processing redundant manufacturing time is reduced.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Retainer for the Processing of Optical Workpieces, in Particular Eyeglass Lenses

Disclosed is a retainer (10) for processing an optical workpiece. The retainer comprises a holding arrangement (72) and a support assembly (73) for the workpiece. A rubber-elastic membrane (75) mounted on a housing (74) has a retaining section (76), on the outer side (77) of which one surface of the workpiece can be placed to lie flat. The membrane, together with the housing defines a chamber (78) in which a plurality of separately longitudinally movable pins (79) of the support assembly are retained. A pin end (80) of each pin can be brought to bear against an inner side (81) of the retaining portion of the membrane and can be fixed relative to one another by a clamping mechanism (82) against longitudinal movement with respect to the housing. The holding arrangement for the workpiece is provided in or on the retaining section of the membrane.
Owner:SATISLOH AG

Large-diameter monocrystalline silicon aspheric surface high-precision polishing method

The invention relates to the technical field of optical processing, and provides a large-caliber monocrystalline silicon aspheric surface high-precision polishing method which is characterized by comprising the following steps: S10, obtaining full-caliber surface shape error distribution of a large-caliber monocrystalline silicon aspheric surface and mapping the full-caliber surface shape error distribution to a discrete grid; s20, constructing a residence time distribution optimization model and a polishing path planning optimization model, and outputting an optimal residence time distribution matrix and a polishing path sequence by taking the surface shape error parameters of the large-aperture monocrystalline silicon aspheric surface as input; s30, based on the optimal residence time distribution matrix and the polishing path sequence, the aspheric surface of the large-diameter monocrystalline silicon is polished; and S40, after each polishing cycle, the steps S10-S40 are repeated until the number of iterations is reached. According to the method, a closed-loop control method of time distribution-path planning-dynamic calibration is formed, so that the surface shape precision and efficiency of large-diameter aspheric surface polishing are remarkably improved.
Owner:JILIN JUCHENG ZHIZAO PHOTOELECTRIC TECH CO LTD

Intelligent control system of lens processing equipment

The invention relates to the technical field of optical manufacturing and processing control, in particular to an intelligent control system of lens processing equipment, which comprises a process relationship pre-storage module, a pressure distribution acquisition module, a surface shape error prediction module, a pressure compensation decision module, an actuator control module and a processing effect verification module. Wherein the process relation pre-storage module is used for establishing a pressure-removal rate relation mapping table; the pressure distribution acquisition module is used for acquiring pressure distribution data; the surface shape error prediction module is used for predicting surface shape error data generated by the lens; the pressure compensation decision module is used for generating a regionalized pressure compensation amount; and the actuator control module is used for dynamically adjusting the pressure applied to different areas of the lens by the polishing head. According to the method, by constructing the pressure-removal rate mapping and closed-loop self-calibration mechanism, intelligent pressure regulation and control and surface shape error dynamic correction in the lens polishing process are achieved, and the machining precision and stability are remarkably improved.
Owner:JIANGXI BOSHI INTELLIGENT TECH CO LTD

Center positioning clamp for polishing optical lens

The invention discloses a center positioning clamp for optical lens polishing, and relates to the technical field of optical lens machining, the center positioning clamp comprises an example workbench, a controller, an electric control air cylinder and a micro servo motor, the electric control air cylinder and the micro servo motor are arranged above the example workbench, and the electric control air cylinder and the micro servo motor are both controllably connected to the controller; through the arrangement of an arc-shaped plate and a wiping layer, grinding fluid and lens waste particles adhering to the clamping blocks in the clamping and grinding process are wiped, and therefore it is guaranteed that the clamping faces of the clamping blocks are dry and clean, and the clamping stability of the next time is guaranteed; in addition, the risk that the lens is damaged during processing due to the fact that uneven particles adhere to the surface of the clamping tool can be avoided, the loss rate of lens processing is further reduced, meanwhile, the workload of manually cleaning the clamping tool is reduced, and in addition, through the arrangement that the wiping layer ascends to automatically replace rolling, the production efficiency is improved. And the wiping layer is further ensured to be in a clean state during wiping each time.
Owner:JIANGXI GUANGCHAN INSTR CO LTD

Lens polishing control method and system for sighting telescope

The invention discloses a lens polishing control method and system for a sighting telescope, and relates to the technical field of lens processing, and the method comprises the steps: carrying out path position connection according to a control process node, a polishing control position and an execution time sequence relation, and obtaining a polishing preset track; a polishing monitoring image is obtained, polishing target recognition and polishing position positioning are carried out, and a polishing execution track is determined; and through grinding track fitting comparison, track deviation information is obtained, grinding effect evaluation is carried out, grinding effect comparison is carried out according to grinding target parameters, grinding deviation information is generated, and control parameter information is adjusted and controlled. The technical problems that in the prior art, due to the fact that the performance difference of different lens materials is large, the adaptation degree of grinding control parameters is low, and the lens grinding precision and quality are affected are solved, and the technical effects that through real-time evaluation of the grinding track and the grinding effect, self-adaptive optimization of the grinding control parameters is conducted, and the lens grinding precision and quality are improved are achieved.
Owner:NANTONG PENGSHENG MACHINERY

Method for deciding polishing process parameters based on image quality indexes of neural network

The invention relates to the technical field of optical processing, in particular to a method for deciding polishing process parameters based on image quality indexes of a neural network. Comprising the steps of determining structure parameters of an optical system according to specific requirements; marking an optical element which needs to be subjected to process decision in the optical system, and recording historical processing data; an optical system is built, the marked optical element is placed in the optical system, actual image quality indexes are obtained through debugging, and the deterioration degree compared with ideal system image quality is collected; repeating the steps to obtain a data set; taking the image quality deterioration degree data set as input, taking the process parameters of the elements as output, and inputting the image quality deterioration degree data set and the process parameters into a modular convolutional neural network for training to obtain a prediction network model; and when an optical system element manufacturing task arrives, inputting the system type and the image quality deterioration degree allowance into the prediction network model to obtain polishing process parameters meeting the image quality deterioration degree allowance. The method has the advantages of quick decision, less calculation time and high understandability.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

High-precision deterministic polishing method for dynamically regulating and controlling scanning speed and immersion depth

The invention discloses a high-precision deterministic polishing method for dynamically regulating and controlling scanning speed and immersion depth, and belongs to the field of optical polishing. The implementation method comprises the following steps: establishing a relation model between the immersion depth of the magnetorheological polishing method and the balloon polishing method and a controllable time-varying removal function based on a Reynolds equation and a Hertz contact model, and realizing the time-varying property of the removal function by accurately regulating and controlling the immersion depth according to the relation model between the immersion depth and the removal function. The material removal efficiency and controllability are further improved; a processing mode that constant-speed control is adopted in a single-line scanning process and a variable-speed adjusting mechanism is introduced in a line-feed scanning stage is provided, so that the path stability is ensured, and the influence of a dynamic load of a machine tool on precision is reduced; a residence time solving method of single-row constant-speed scanning and line-feed speed changing is constructed, and the accuracy and reliability of residence time solving are guaranteed; and a technology implementation path for dynamically regulating and controlling the scanning speed and the immersion depth is determined, and efficient convergence of the surface shape error and high-precision control over the polishing process are achieved.
Owner:BEIJING INST OF TECH

Machining device, use of a cross-table and method for facing an optical workpiece

The invention relates to a machining device for optical workpieces, to a use of a cross-table, and to a method for facing an optical workpiece, wherein the workpiece is first fed to a tool along a roller-supported feed axle and is then machined by facing only by axial movement of the tool. Furthermore, the workpiece being machined is moved along a transverse axis with hydrostatic mounting during machining. This enables a simple and cost-effective design and highly precise machining.
Owner:SCHNEIDER GMBH & CO KG

Precise manufacturing method of special-shaped lens

The invention provides a precision manufacturing method of a special-shaped lens, a convex spherical surface and a concave aspheric surface are formed on the front and back surfaces of the special-shaped lens respectively, a chord plane is formed on each of the two sides of the special-shaped lens, and the method comprises the following steps: S1, performing rough grinding forming on set fitting spherical surfaces of the convex spherical surface and the concave aspheric surface of the special-shaped lens; s2, turning a concave aspheric surface; s3, after turning is completed, whether the concave aspheric surface is qualified or not is detected, if yes, the step S4 is executed, and if not, the step S2 is repeated; s4, discharging from the disc, cleaning the special-shaped lens, and protecting the concave aspheric surface by using a protective layer; s5, starting the numerical control machining center, and machining two chord planes by taking the convex spherical surface and the concave surface platform as positioning references; s6, a machine tool is started, the protected concave aspheric surface and the special-shaped matching tool are placed into a vacuum adsorption tool together, a polishing disc is installed, and a polishing program is started; and S7, detecting the surface shape precision and the surface smoothness of the convex spherical surface. According to the method, the edge breaking phenomenon during machining is effectively avoided, and the machining difficulty is reduced.
Owner:TIANJIN JINHANG INST OF TECH PHYSICS

Optical lens machining rotary table

The invention belongs to the field of optical lens machining, and particularly relates to an optical lens machining rotary table which comprises a machining table body, a machining groove is formed in the machining table body, a base is arranged at the bottom of the machining groove, two rotary table assemblies in bilateral symmetry are arranged on the base, and a first driving assembly is jointly arranged between the two rotary table assemblies and the base. And a polishing mechanism is arranged on the rotary table assembly. The rotary table assembly comprises a semicircular supporting cover, the supporting cover is connected with the base through a supporting pipe fitting, the outer arc face of the supporting cover is sleeved with a rubber sleeve matched with the supporting cover in shape, and a plurality of fixing grooves used for bearing lenses are formed in the surface of the rubber sleeve. The lens is directly fixed through the rotary table assembly, the lens is installed only by being pressed into a groove and then subjected to vacuum adsorption, demolding only needs to relieve vacuum negative pressure, the links of heating, cooling, asphalt cleaning and the like are omitted on the premise that the lens fixing stability is guaranteed, the single-cycle machining time is greatly shortened, and the material use cost is greatly reduced.
Owner:CHANGCHUN XINGHANG TECH CO LTD

Spherical / aspheric workpiece accurate grinding and polishing machine and accurate grinding and polishing method

The spherical center swing arc polishing machine aims at overcoming the defects that in the prior art, when a spherical center swing arc polishing machine conducts surface type correction on the precision of a polished spherical surface, the requirement for the technical level of operators is high, and an aspheric workpiece cannot be polished. According to the accurate grinding and polishing machine and the accurate grinding and polishing method for the spherical / aspheric workpiece, the surface type of the spherical workpiece can be effectively and automatically corrected, and the surface type of the aspheric workpiece can be polished and corrected. Comprising an elastic accurate grinding head / polishing die, a swing arc driving device for driving the accurate grinding head / polishing die to do swing arc motion relative to a workpiece, and a workpiece rotation driving device for supporting and mounting the machined workpiece and driving the workpiece to rotate, by the adoption of the spherical / aspheric workpiece accurate grinding and polishing machine and the accurate grinding and polishing method, accurate grinding and polishing of the spherical surface can be completed, accurate grinding and polishing of the aspheric surface can be well completed, the spherical surface and the aspheric surface with high surface type precision can be obtained, and the surface type of the aspheric surface can be obtained more easily.
Owner:BEIJING DAOTIAN TECH R&D CO LTD

Machining equipment for arc-shaped lens wall of optical lens

The invention belongs to the technical field of optical lens machining equipment, and particularly relates to optical lens arc-shaped mirror wall machining equipment which comprises a bottom plate, limiting plates are symmetrically and slidably mounted on the bottom plate, two rotating discs are rotatably mounted between the two limiting plates, and the sides, away from each other, of the two rotating discs penetrate through the two limiting plates and extend into the limiting plates correspondingly; first cylinders are fixedly mounted on the sides, close to each other, of the two rotating discs, sliding shafts are arranged at the ends, close to each other, of the two first cylinders, C-shaped plates are fixedly mounted at the ends, close to each other, of the two sliding shafts, and the ends, away from each other, of the two sliding shafts penetrate through the first cylinders, extend into the first cylinders and are provided with springs. By means of the clamping device, lenses with different thicknesses can be clamped, the situation that the lenses are prone to loosening or deformation in the machining process is avoided, the machining precision and the lens quality are greatly improved, when the two faces of each lens need to be polished, manual overturning by workers is not needed, the situation that the surfaces of the lenses are scratched is reduced, and the working efficiency of the workers is improved.
Owner:ZHEJIANG HUAJU OPTICS CO LTD

Full-automatic optical glass polishing machine

The invention belongs to the technical field of glass processing, and particularly relates to a full-automatic optical glass polishing machine which comprises a polishing machine body, two first guide rails are fixedly connected to the interior of the polishing machine body, a mounting table is slidably arranged on the two first guide rails, and a fixing groove is formed in the upper surface of the mounting table; a fixing disc is rotatably arranged in the fixing groove, two fixing blocks are fixedly connected to the upper surface of the glass bearing plate, first groove bodies are formed in the sides, close to each other, of the two fixing blocks, a first pressure spring is fixedly connected to the inner wall of each first groove body, a first magnetic block is fixedly connected to one end of each first pressure spring, and a second magnetic block is fixedly connected to the other end of each first magnetic block. By means of the first magnetic block and the second magnetic block, the problems that due to the fact that optical glass is not properly fixed, the optical glass moves or deviates due to friction force generated by polishing, glass surface polishing distribution is uneven, the thickness is different, and the optical performance and the appearance quality of the optical glass are affected are solved.
Owner:NANYANG NEW PRECISION OPTICS CO LTD

Magnetorheological machining regulation and control device based on instantaneous current sensing and machining method

The invention relates to the technical field of magneto-rheological, in particular to a magneto-rheological machining regulation and control device based on instantaneous current perception and a machining method.The device comprises a polishing platform, a polishing assembly, a detection circuit and a computer; the corresponding relation between different operation parameters of the polishing assembly and the ideal instantaneous current is collected, when the to-be-polished element is machined, the second instantaneous current is judged through the corresponding relation, whether the operation parameters of the polishing assembly are adjusted or not is determined according to the judgment result, and therefore real-time adjustment of the operation parameters of the polishing assembly is achieved. In the process, the step of calibrating parameters such as gravity compensation is not needed, the precision of measured data is only limited by the current measurement precision of the second instantaneous current between the magneto-rheological polishing module and the to-be-polished element, the measurement result is more accurate, a force sensor does not need to be added, and the equipment cost is reduced.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Automatic material packaging device for grinding head

An automatic material wrapping device for a grinding head comprises a bottom plate, a locking device and a material binding device, the locking device is connected to the bottom plate, and the locking device is provided with a grinding head clamping structure used for clamping the grinding head, a cloth clamping structure used for clamping cloth and a clamp driving electric cylinder used for driving the grinding head clamping structure. The material binding device is connected to the bottom plate and arranged on the outer side of the locking device in a surrounding mode, the material binding device comprises a material wrapping structure and a fastening driving device, the grinding head is clamped on a grinding head clamping structure, cloth is clamped on a cloth clamping structure and leveled, and a clamp driving electric cylinder drives the grinding head clamping structure to drive the grinding head to jack up the cloth. And the fastening driving device drives the material wrapping structure to fasten the cloth on the grinding head through the bar. According to the scheme, the structural design of the locking device and the material binding device is adopted, and the effects that the grinding head material wrapping operation steps are simplified, the working efficiency is effectively improved, the material wrapping time is shortened, the material wrapping uniformity is improved, and the finished product quality of the aspheric optical element is improved are achieved.
Owner:GUANGDONG KINGDING OPTICAL TECH CO LTD

Glass vacuum cavity and manufacturing method

The invention belongs to the field of advanced scientific devices integrating optics, quantum mechanics, atomic physics and a vacuum technology, and particularly relates to a glass vacuum cavity and a manufacturing method thereof.The manufacturing method includes the steps that the inner surfaces of window pieces are machined firstly, an inner working face with high surface shape precision can be obtained, and after the inner surfaces are machined, the four window pieces are plated with films, and the working faces are plated with antireflection films; the optical cement surface is plated with an optical cement auxiliary film, and the diffraction film is rubbed after the optical cement surface is plated with the film, so that the optical cement strength is ensured to be optimal. After every two of the four window sheets are subjected to optical cement deepening, the outer surfaces are processed, and when the outer surfaces are processed, the inner surfaces are protected, so that the quality of a film layer is not damaged. By means of the method that optical processing, film coating and optical cement deepening are conducted on the inner surface alternately, and then optical processing, film coating and optical cement deepening are conducted on the outer surface alternately, the glass vacuum cavity which is high in window piece surface shape precision, high in window piece parallel precision, high in combination strength and good in air tightness, and the film layer surface quality is not prone to pollution or damage can be machined.
Owner:XI AN SNP PRECISION OPTICS CO LTD

Mechanical arm grinding and polishing device for lens machining

The mechanical arm grinding and polishing device for lens machining comprises a machining supporting base and a mechanical executing mechanism, and the mechanical executing mechanism is arranged on one side of the outer portion of the machining supporting base; the disc-shaped fixing piece is rotationally installed on the upper end face of the machining supporting base, and eight guide grooves evenly distributed in the annular direction are formed in the upper end face of the disc-shaped fixing piece; the limiting piece is mounted in the guide groove; the grinding mechanism is installed at the end, close to the machining supporting base, of the mechanical executing mechanism, and the grinding mechanism comprises a grinding disc and a spraying component; the anti-splashing device is arranged on the outer edge of the upper end face of the disc-shaped fixing piece; the fixing seat is installed on the upper end face of the center of the disc-shaped fixing piece, and an optical element supporting seat is installed at the end, away from the disc-shaped fixing piece, of the fixing seat. The adjustable limiting piece and the disc-shaped fixing piece are arranged to be matched with different lenses, the anti-splashing device is matched with flow guiding and the like to achieve ordered collection, and the machining efficiency and quality are improved through cooperation of the parts.
Owner:SHANGHAI YANMU OPTOELECTRONIC TECH CO LTD

Free-form surface flexible polishing self-adaptive control method and device

The invention discloses a free-form surface flexible polishing self-adaptive control method and device, and belongs to the technical field of ultra-precision four-axis polishing machine tool machining. According to the method, a high-efficiency closed-loop control system is constructed on the basis of a flexible head removal principle in combination with an automatic control technology and a pressure sensing technology, fine online capture of down pressure changes and self-adaptive adjustment of polishing parameters in the polishing process can be achieved, the limitation of the prior art is effectively overcome, and the intelligent level of the process is improved. Comprising a flexible polishing head and a downward pressure on-line detection device. The actual machining condition of the current position is analyzed by collecting downward pressure generated by deformation of the flexible polishing head in the polishing process, and technological parameters are automatically adjusted. The invention provides a more efficient and accurate free-form surface flexible polishing scheme, the machining time can be remarkably shortened, the labor intensity of technicians is relieved, and meanwhile, the machining precision is guaranteed and improved. The device has the advantages of simple structure, convenience in disassembly and assembly, high precision and the like.
Owner:HARBIN UNIV OF SCI & TECH

Longitudinal-torsional composite ultrasonic vibration polishing method for inhibiting intermediate frequency error of hard and brittle free-form surface

The invention relates to a polishing method for a hard and brittle free-form surface, in particular to a longitudinal-torsional composite ultrasonic vibration polishing method for inhibiting intermediate-frequency errors of the hard and brittle free-form surface, and solves the technical problem that an existing ultrasonic vibration polishing method cannot inhibit the intermediate-frequency errors of polishing of the free-form surface of a hard and brittle material. According to the method, a mechanical polishing method is adopted, longitudinal-torsional composite ultrasonic vibration is added to the polishing tool, so that the rotating motion and the feeding motion of the polishing tool are combined with the longitudinal-torsional composite ultrasonic vibration to form a space complex coupling polishing track, and the purpose that the polishing tool conducts polishing in the material removing direction according to the space complex coupling polishing track is achieved; by changing the amplitude and frequency of longitudinal-torsional composite ultrasonic vibration, the spatial attitude of a longitudinal-torsional composite ultrasonic vibration polishing time-varying removal function is changed in real time, so that the removal function of each polishing point is different under the action of a spatial complex coupling polishing track; therefore, the suppression of the intermediate-frequency error is realized.
Owner:XIAN INST OF OPTICS & PRECISION MECHANICS CHINESE ACAD OF SCI

Automatic polishing equipment for optical lens

The invention discloses automatic polishing equipment for optical lenses, and relates to the technical field of optical lens machining, the automatic polishing equipment comprises a supporting mechanism and a polishing stabilizing mechanism, the supporting mechanism comprises a base, a machining bin is fixedly connected to the top wall of the base, a polishing mechanism and an antifouling mechanism are arranged on the machining bin, and the polishing stabilizing mechanism is arranged above the polishing mechanism; and a liquid outlet nozzle is arranged on the polishing stabilizing mechanism. The optical lens mounting device has the advantages that the mounting stabilizing assembly and the locking assembly are matched, the optical lens is quickly mounted through circumferential clamping, further locking is carried out to ensure mounting stability of the optical lens, and machining errors caused by position deviation are prevented; through cooperation of the polishing stabilizing assembly and the locking assembly, a stable structure is formed, vibration generated in the swinging process can be effectively reduced, and the corrugation effect can be reduced; and through the cooperation of the antifouling mechanism and the liquid outlet nozzle, the liquid is prevented from being splashed to the adjacent optical lens, and new small scratches are prevented from being generated.
Owner:SETH (TAICANG) MATERIAL TECH CO LTD

Composition for polishing optical fiber image-transmitting composite glass and polishing method

The invention relates to a composition for polishing optical fiber image-transmitting composite glass and a polishing method. The composition comprises the following substances in percentage by mass: 10-25% of rare earth oxide; the content of the ultrapure water is 72%-88%; the content of the additive is 0.5%-4%. The polishing method comprises the following steps that a polishing medium solution is prepared, specifically, an additive is added into ultrapure water, ultrasonic stirring is conducted for the first time till the additive is completely dissolved, then rare earth oxide is added, ultrasonic stirring is conducted for the second time, and the polishing medium solution is obtained after the rare earth oxide is evenly dispersed; and polishing treatment: carrying out surface polishing treatment on the optical fiber image-transmitting composite glass by using a polishing medium solution. When the composition is used for polishing the optical fiber image-transmitting composite glass, the surface quality of the optical fiber image-transmitting composite glass is improved, the problem that pits are generated on the surface of the optical fiber image-transmitting composite glass is avoided, and the composition has the advantages of improving the polishing efficiency and the polishing effect.
Owner:CHINA BUILDING MATERIALS ACADEMY CO LTD +1

Metal square mirror polishing method and tool

The invention provides a metal square mirror polishing method and tool, and the polishing method comprises the steps: obtaining a to-be-treated product, and carrying out the pretreatment of the to-be-treated product, so as to remove oil stains and impurities on the surface of the to-be-treated product; a first polishing agent is obtained, and rough polishing is conducted on the to-be-treated product through the first polishing agent under the first set condition by means of first polishing equipment, so that concave-convex and scratches on the surface of the to-be-treated product are removed; a second polishing agent is obtained, the second polishing device is used for conducting fine polishing on the to-be-treated product through the second polishing agent under the second set condition, so that the roughness of the surface of the to-be-treated product is reduced, and a final product is obtained; wherein the first set condition comprises the preset polishing pressure, the preset polishing disk rotating speed and the preset polishing time of the first polishing equipment; the second set condition comprises the preset polishing pressure of the second polishing equipment, the preset polishing disk rotating speed and the preset polishing time. The problem that in the prior art, the polishing precision of a polishing technology on a metal square mirror is insufficient is solved.
Owner:HEBEI LINGHE TECH CO LTD

An optical lens processing turntable

This invention belongs to the field of optical lens processing, and particularly relates to an optical lens processing turntable, including a processing table with a processing groove on the processing table. A base is set at the bottom of the processing groove, and two sets of turntable assemblies are symmetrically arranged on the base. A drive assembly is shared between the two sets of turntable assemblies and the base. A polishing mechanism is provided on the turntable assembly. The turntable assembly includes a semi-circular support cover, which is connected to the base via a support tube. A rubber sleeve adapted to the shape of the support cover is fitted on the outer arc surface of the support cover, and multiple fixing grooves for supporting lenses are formed on the surface of the rubber sleeve. This invention directly fixes lenses through the turntable assembly. Lens installation only requires pressing into the groove and then vacuum adsorption, and demolding only requires releasing the vacuum negative pressure. While ensuring the stability of lens fixation, it eliminates heating, cooling, and asphalt cleaning processes, significantly shortening the single-cycle processing time and greatly reducing material usage costs.
Owner:CHANGCHUN XINGHANG TECH CO LTD

Polishing device for blue glass optical filter and polishing method thereof

The invention relates to the technical field of blue glass optical filter processing, in particular to a polishing device for a blue glass optical filter and a polishing method of the polishing device. Comprising a C-shaped pedestal, an electric push rod, a T-shaped movable plate and an auxiliary connecting assembly, the auxiliary connecting assembly comprises a connecting frame, a mold plate, a partition plate, a first air cylinder, an extrusion plate, an overturning component, a grinding component, a dust collection component and a supporting component, and during use, the mold plate is placed in the connecting frame, and the first air cylinder is started to abut against the extrusion plate to move inwards; then an electric push rod is started to drive a T-shaped movable plate to move downwards, and a grinding component is driven to polish one face of the blue glass optical filter; the overturning component rotates in the round hole through the first air cylinder to drive the mold plate to overturn. The electric push rod drives the grinding component again to polish the other surface; by turning over the blue glass optical filter in the mode, the production efficiency of the blue glass optical filter can be effectively improved, and workers can conveniently collect the blue glass optical filter.
Owner:JIANGSU MEIDONG SEMICON CO LTD

Lens type AI intelligent manufacturing platform

The invention provides a lens AI manufacturing platform, and relates to the field of lens processing equipment. The lens type AI intelligent manufacturing platform comprises a workbench, a tool changing measuring platform, a clamping module platform and a lensometer platform, a table top is fixedly arranged at the top of the workbench, the tool changing measuring platform, the clamping module platform and the lensometer platform are all fixed to the top of the table top of the workbench, a first horizontal conveying table is arranged at the bottom of the tool changing measuring platform, and a second horizontal conveying table is arranged at the bottom of the clamping module platform. A second horizontal conveying table is arranged at the bottom of the clamping module platform, and a third horizontal conveying table is arranged at the bottom of the lensometer platform. About dozens of machining technologies of lenses can be basically completed on one device, various types of lenses including full-frame lenses, half-frame lenses, frameless lenses, inlaid lenses, non-standard customized lenses and the like can be covered, complex machining procedures are simplified, all procedures are completed through one-time clamping, single small-batch products are not difficult to machine any more, and the problem of pain points of customization is solved.
Owner:ZHENJIANG JINGYE INTELLIGENT TECHNOLOGY CO LTD

Processing method

In the machining method using the spherical core type machining machine (1), a tool mounting step (ST1) of holding the lens material (40) in the lens holder (41) and mounting the machining tool (5) on the spindle (6), a first spherical surface machining step (ST2) of performing a spherical surface machining operation, a first difference obtaining step (ST3) of obtaining the first machining radius (R1) of the machining target surface (40a) of the lens material (40) and obtaining the first difference (ΔR1) between the target radius (Re) and the first machining radius (R1), a first tool position setting step (ST4) of moving the machining tool (5) by a distance corresponding to the first difference (ΔR1) so that the distance between the first contact point (C1) in contact with the machining target surface (40a) on the tool surface (5a) of the machining tool (5) and the intersection point (O) of the rotation axis (L1) and the swing axis (L2) is the target radius (Re), and a second spherical surface machining step (ST5) of holding a new lens material (40) in the lens holder (41) and performing a spherical surface machining operation.
Owner:KOJIMA ENG

Device for changing the shape of a surface of an object

A device (10) for changing the shape of a surface (12) of an object (14) comprises a shape manipulation device (16) configured to effect a change in the surface of the object in at least two processing operations as a function of a control variable (56), wherein at least a portion of the surface is processed in each of the processing operations. Furthermore, the device comprises a control device (50) configured to determine, from a predetermined target change (52) in the surface shape of the object, a specification (56v) for the control variable (56) of the shape manipulation device by means of an optimization (60), in which the total time required to generate the surface change resulting from the at least two processing operations is minimized.
Owner:CARL ZEISS SMT GMBH