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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 36. Отображено 36.
25-07-2013 дата публикации

MULTIFUNCTIONAL SUBSTRATE POLISHING AND BURNISHING DEVICE AND POLISHING AND BURNISHING METHOD THEREOF

Номер: WO2013107030A1
Автор: KANG, Renke, ZHU, Xianglong, DONG, Zhigang, FENG, Guang, GUO, Dongming
Принадлежит:

A multifunctional substrate polishing and burnishing device and a polishing and burnishing method thereof, which belong to the technical field of ultra-precision machining of a planar substrate and relate to polishing and burnishing leveled machining and thinning machining of hard and crisp materials such as silicon wafers, sapphire substrates and glass base plates. The substrate polishing and burnishing method comprises three modes of axial cut-in polishing and burnishing, radial cut-in polishing and burnishing and margin-leaving polishing and burnishing. The polishing and burnishing device adopts a double-spindle structure composed of a spindle polishing unit (18) and a spindle burnishing unit (35), to polish and burnish the substrate on one device. The spindle polishing unit and the spindle burnishing unit are dragged by a traction rope (28) and are in mutual counterweight. The polishing and burnishing device integrates a polishing machine and a burnishing machine. Two working procedures ...

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Номер записи: 1
02-04-2020 дата публикации

FLOAT POLISHING DEVICE AND METHOD FOR SMALL-SIZE COMPLEX SURFACE PART

Номер: WO2020062701A1
Автор: GUO, Jiang, KANG, Renke, GUO, Dongming
Принадлежит:

A float polishing device and method for a small-size complex surface part. A rotating shaft (1) in the float polishing device is connected to a motor by means of a disc-type elastic spring coupling (6), and a floating device (4) and a pair of magnets (2) are mounted at the bottom of the rotating shaft (1); the floating device (4) is arranged on a bottom surface of an accommodating unit (5), and another pair of magnets (2) are provided therebelow; the two pairs of magnets are arranged in parallel or perpendicularly to each other; grooves are formed in the bottom surface of the accommodating unit (5), magnetic media (3) are fixed within the grooves magnetically, and a workpiece is placed in the grooves and is enveloped by the magnetic media (3). By means of the two pairs of magnets, rotating motions in opposite directions are provided to generate bidirectional rotating motions within the magnetic media (3), and generated combined rolling actions and pressure may help the magnetic media (3 ...

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Номер записи: 2
29-08-2019 дата публикации

ULTRASONIC CUTTING HOLDER FOR HONEYCOMB CORE

Номер: WO2019161743A1
Автор: KANG, Renke, DONG, Zhigang, WANG, Yidan, ZHU, Xianglong, GAO, Shang, BAO, Yan
Принадлежит:

Disclosed is an ultrasonic cutting holder for a honeycomb core, comprising a holder, a rotating mechanism, a transducer, a first-stage amplitude-change pole, a second-stage amplitude-change pole, an ultrasonic cutting tool, and an ultrasonic power transmission mechanism. The ultrasonic cutting holder for the honeycomb core has the large-amplitude output capacity, considers the requirement for interchangeability between different vibration systems, solves the problem of poor applicability of the ultrasonic cutting holder to a universal machine tool, and improves the automatic level of ultrasonic cutting.

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Номер записи: 3
18-06-2020 дата публикации

SEMICONDUCTOR WAFER PHOTOELECTROCHEMICAL MECHANICAL POLISHING PROCESSING DEVICE AND PROCESSING METHOD

Номер: WO2020119779A1
Автор: DONG, Zhigang, SHI, Kang, KANG, Renke, OU, Liwei, ZHU, Xianglong, GAO, Shang
Принадлежит:

Disclosed are a semiconductor wafer photoelectrochemical mechanical polishing processing device and a processing method therefor. A wafer (4) is adhered and fixed to a polishing head (3) by means of a conductive adhesive, and the wafer (4) is connected to a positive electrode of an external power source (12) through wires of inner and outer rings of a conductive slip ring (2) below the wafer. A polishing pad (5) is adhered to the bottom of a counter electrode disc, the counter electrode disc (6) is fixed at the bottom of a polishing disc (7) and is processed with a through hole (8) at the position corresponding to the polishing disc (7), and the counter electrode disc (6) is connected to a negative electrode of the external power source (12) through wires of inner and outer rings of a conductive slip ring (11) above the counter electrode disc. Ultraviolet light emitted by an ultraviolet light source (10) can reach the surface of the wafer (4) through the through hole (8), and a polishing ...

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Номер записи: 4
25-04-2023 дата публикации

Wafer surface shape prediction model establishment method based on Abbe principle and Bladen principle

Номер: CN116009478A
Автор: CAI YINDI, GAO YINGHAO, FU QING, YIN KEDI, ZHU XIANGLONG, KANG RENKE
Принадлежит:

The invention belongs to the technical field of numerical control machine tool processing, and provides a wafer surface shape prediction model establishment method based on the Abbe principle and the Bladen principle, and the method explores the influence of measurement errors caused by measurement positions in the geometric error measurement process on the wafer surface shape precision based on the precision measurement principles, namely the Abbe principle and the Bladen principle. And establishing a mapping relation between the geometric error and the wafer surface shape. The model not only considers the influence of each shafting of the grinding machine tool and geometric errors among the shafting on the wafer surface shape, but also considers the influence of measurement errors caused by geometric error measurement positions on the wafer surface shape, and provides a theoretical basis for optimizing the grinding machine tool and improving the wafer surface shape precision.

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Номер записи: 5
07-11-2019 дата публикации

HELICAL MILLING TOOL WITH FORWARD AND BACKWARD FEEDING

Номер: WO2019210506A1
Автор: DONG, Zhigang, KANG, Renke, YANG, Guolin, ZHU, Xianglong, GAO, Shang, ZHOU, Ping, GUO, Dongming
Принадлежит:

Disclosed is a helical milling tool with forward and backward feeding, the tool comprising a cutting portion (10), a neck portion (11) and a handle portion (12), which are successively connected to each other, wherein the cutting portion comprises a front-end cutting region (13), a circumferential cutting region (14) and a rear-end cutting region (15), which are successively connected to each other; the front-end cutting region is of an end-milling cutter structure or a drill bit structure; the circumferential cutting region is of a cylindrical shape and is of a circumferential milling cutter structure; and the rear-end cutting region is of a circular truncated cone shape. The tool can avoid defects such as layering and tearing, which go beyond machining requirements in a composite material, improve the machining quality, save on costs, simplify the machining process, improve the production efficiency and prolong the service life of the tool.

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Номер записи: 6
04-07-2023 дата публикации

Cross-scale equivalent elastic mechanical property modeling method for fiber reinforced composite material

Номер: CN116384076A
Автор: BAO YAN, DONG ZHIGANG, RAN YICHUAN, KANG RENKE, YUAN GUOQING
Принадлежит:

The invention discloses a cross-scale equivalent elastic mechanical property modeling method for a fiber reinforced composite material, which comprises the following steps of: analyzing representative volume element stress deformation behaviors of the fiber reinforced composite material under the action of uniaxial forces in different directions by utilizing Hooke's law and an infinitesimal method; establishing a theoretical model of macroscopic elastic modulus and Poisson's ratio of the fiber reinforced composite material, and obtaining elastic mechanical property parameters of the composite material in all directions according to a derived formula. According to the cross-scale equivalent elastic mechanical property prediction model for the fiber reinforced composite material, the microstructure characteristics of the composite material are considered, the precision of the prediction model is improved, and the experiment cost is saved.

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Номер записи: 7
12-05-2023 дата публикации

Ultrafast laser high-quality and high-efficiency inclined hole machining method

Номер: CN116100170A
Автор: DONG ZHIGANG, BAO YAN, MA HONGBIN, YANG FENG, MA GUANGYI, KANG RENKE
Принадлежит:

The invention provides a high-quality and high-efficiency inclined hole processing method by ultrafast laser, which comprises the following steps of: calculating a multi-pulse ablation threshold value under an inclined workpiece according to ablation pit results under different pulse energies, and further obtaining an ablation depth equation at different focal depths on an inclined plane by combining the multi-pulse ablation threshold value with an energy density equation under different focal depths; different machining methods and machining parameters are designed from the inlet stage, the middle stage and the outlet stage of the inclined hole, and the feeding depth of each stage is solved through ablation depth equations at different focal depths and scanning times. According to the method, theoretical calculation and an actual process are combined, an ablation depth prediction model in the inclined hole machining process is established by calculating an ablation depth equation at different ...

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Номер записи: 8
14-07-2023 дата публикации

Laser-assisted ultrasonic grinding knife handle for hard and brittle materials and machining method

Номер: CN116423302A
Автор: BAO YAN, KANG RENKE, WU DADA, DONG ZHIGANG, SUN WENCHAO
Принадлежит:

The invention provides a laser-assisted ultrasonic grinding knife handle for hard and brittle materials and a machining method.The laser-assisted ultrasonic grinding knife handle comprises a laser machining unit, an adapter plate and an ultrasonic machining unit, the ultrasonic machining unit and the laser machining unit are connected through the adapter plate, and the ultrasonic machining unit comprises an ultrasonic knife handle and a grinding wheel connected with the ultrasonic knife handle; the laser processing unit comprises a laser controller, a laser processing head, a laser processing head clamping device and a laser processing head position adjusting device arranged in the laser processing head clamping device, and the laser controller is connected with the laser processing head; and the position of the laser processing head in the laser processing head clamping device is adjusted through the laser processing head position adjusting device. Compared with common grinding wheel grinding ...

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Номер записи: 9
29-08-2019 дата публикации

ULTRASONIC CUTTING METHOD EMPLOYING STRAIGHT-BLADE SHARP KNIFE AND APPLICATION THEREOF

Номер: WO2019161744A1
Автор: DONG, Zhigang, KANG, Renke, WANG, Yidan, ZHU, Xianglong, WANG, Xuanping, GAO, Shang, JIA, Zhenyuan
Принадлежит:

Disclosed is an ultrasonic cutting method employing a straight-blade sharp knife and an application thereof. The ultrasonic cutting method employing a straight-blade sharp knife comprises the following steps: S1, measuring parameters of the straight-blade sharp knife; S2, the straight-blade sharp knife initially rotating around a knife shaft thereof, thus enabling a rear knife surface of the straight-blade sharp knife to fit to or be away from a processed surface, and performing ultrasonic vibration cutting on a material according to a processing track; S3, performing quality detection on the processed material surface obtained by the ultrasonic vibration cutting, completing processing if the surface passes the detection, and performing step S4 if the surface does not pass the detection; and S4, further increasing the amount of rotation of the straight-blade sharp knife during initial rotation around the knife shaft thereof, performing ultrasonic vibration cutting on the material according ...

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Номер записи: 10
04-07-2023 дата публикации

Self-adaptive clamp for bending test of hard and brittle composite material and bending strength detection method

Номер: CN116380635A
Автор: BAO YAN, KANG RENKE, MA HAONAN, DONG ZHIGANG, WANG ZHONGWANG
Принадлежит:

The invention provides a self-adaptive clamp for a bending test of a hard and brittle composite material and a bending strength detection method. The bending test self-adaptive clamp is composed of a pressure head, a support and a base. The supporting roller self-adaptive adjusting block is installed on the supporting block through the adjusting block connecting pin and can rotate around the adjusting block connecting pin to ensure that the supporting roller, the pressing roller and the bending sample are in a linear contact state, and measurement errors caused by the influence of the flatness and parallelism of the surface of the sample are reduced. A motor is matched with a bidirectional screw rod to realize accurate adjustment of spans so as to realize bending tests of different spans. By determining the structure and/or number of the fiber reinforcements of the sample and measuring the pore area and depth of the surface layer of the sample, material waste caused by reprocessing of the ...

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Номер записи: 11
18-07-2019 дата публикации

MANUFACTURING METHOD FOR MICROSTRUCTURE

Номер: WO2019136731A1
Автор: GUO, Jiang, ZHU, Xianglong, DONG, Zhigang, GUO, Xiaoguang, KANG, Renke, GUO, Dongming
Принадлежит:

A manufacturing method for a microstructure. Additive manufacturing (3D printing) and precision machining technology are combined to manufacture a device with a microstructure. The method comprises the steps of: (1) preparing a sample piece and machining a surface on which a microstructure needs to be generated; (2) printing, by adopting 3D printing technology, metal powder on a milling path cut in the first step, so as to obtain a microstructure (5) in an initial state; and (3) machining the 3D printed structure, to obtain a microstructure meeting precision requirements, and further polishing same to improve the surface quality. The manufacturing method can overcome defects of a conventional MEMS manufacturing process and machining procedures, thereby improving the machining precision and efficiency and the quality of a machined surface, and reducing the production costs.

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Номер записи: 12
02-01-2020 дата публикации

METHOD FOR DETECTING MICROTOPOGRAPHY AND ROUGHNESS OF INNER WALL OF GAP

Номер: WO2020000249A1
Автор: GUO, Jiang, LIU, Shujie, KANG, Renke, GUO, Dongming
Принадлежит:

A method for detecting the microtopography and roughness of an inner wall of a gap, comprising: 1) shrinking and inserting a flexible mechanism having a stick-on measurement thin film into a gap; 2) controlling the flexible mechanism to inflate by means of a controller, so that the measurement thin film is effectively attached to a surface to be measured, and the measuring thin film extracting microtopography and surface roughness information of an inner wall by means of copying; and 3) controlling the flexible mechanism to shrink and exit from an inlet of the gap, and performing numerical value measurement on the microtopography and surface roughness of the inner wall that are extracted by the measurement thin film by means of a surface topography measuring instrument.

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Номер записи: 13
02-04-2020 дата публикации

AUTOMATIC HOLE-MAKING METHOD WITH SELF-ADAPTING ADJUSTMENT OF PROCESSING PARAMETER

Номер: WO2020062442A1
Автор: KANG, Renke, DONG, Zhigang, YANG, Guolin, ZHU, Xianglong, YAN, Chao, GAO, Yu
Принадлежит:

Provided is an automatic hole-making method with self-adapting adjustment of processing parameter, comprising the following steps: performing cutter feeding, detecting whether the rotation speed is changed or not, and if the rotation speed is changed, judging the type of the processing material according to the new rotation speed after stabilization (if the rotation speed is not changed, the cutter feeding is continued), the cutter is fed according to the processing parameter suitable for the material, detecting whether the rotation speed is changed or not, if the rotation speed is changed, judging whether the hole making processing is finished or not according to the new rotation speed after stabilization (if the rotation speed is not changed, the cutter feeding is continued), if the hole making processing is finished, the cutter is returned according to the set parameter (if the hole making processing is not finished, judging the type of the processing material according to the new rotation ...

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Номер записи: 14
13-06-2023 дата публикации

Method for detecting surface damage of metal-based composite material through polarization laser scattering

Номер: CN116256335A
Автор: BAI QIAN, SHI FANGYUAN, KANG RENKE
Принадлежит:

The invention discloses a method for detecting surface damage of a metal-based composite material through polarization laser scattering, which comprises the following steps: according to a polarization laser scattering principle, the polarization state of surface single scattered light scattered by the surface of the metal-based composite material is basically consistent with that of incident laser; the polarization state of the damage multiple-time scattered light scattered by the surface damage part is obviously different from that of the incident light, the damage multiple-time scattered light at the surface damage part can be separated from the detection light through the optical signal processing system, signal enhancement is carried out, so that the surface damage is detected, and the detection result is obtained through computer analysis. And the position information of the damage is further obtained. By separating the scattered light, the influence of surface roughness on surface ...

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Номер записи: 15
25-01-2018 дата публикации

METHOD AND DEVICE FOR MEASURING SURFACE SHAPE OF HONEYCOMB CORE

Номер: WO2018014720A1
Автор: KANG, Renke, DONG, Zhigang, ZHU, Xianglong, QIN, Yan, WANG, Yidan
Принадлежит:

Disclosed are a method and a device for measuring a surface shape of a honeycomb core (22), the method comprising the following steps: coating a reflective film (21) on a surface to be measured of a honeycomb core (22), using a vacuum adsorption method to adhere the reflective film (21) closely to the surface to be measured of the honeycomb core (22), and recessing the reflective film (21) at a honeycomb cell downwards; and performing scanning measurement on the reflective film (21) on the surface to be measured of the honeycomb core (22) to obtain the heights of a honeycomb wall of the honeycomb core (22) at different spatial positions. The method and device have the advantages of being high in measurement precision, low in usage costs, high in measurement efficiency, good in applicability, rich in acquired information and capable of realizing in-situ measurement.

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Номер записи: 16
28-02-2019 дата публикации

NANOMETER DEPTH OF CUT HIGH-SPEED SINGLE-POINT SCRATCHING TEST APPARATUS AND TEST METHOD THEREFOR

Номер: WO2019037282A1
Автор: ZHOU, Ping, HUANG, Ning, KANG, Renke, GUO, Dongming, YAN, Ying
Принадлежит:

A nanometer depth of cut high-speed single-point scratching test apparatus and a test method therefor. The test apparatus comprises a workbench (2), an air-floated turntable (3), a specimen fixture (4), a specimen (5), a Z-direction feeder apparatus (12), a nano-movement platform (10), a force sensor (8), and a scratching tool (6). The specimen (5) is provided at a position to be scratched with a length- and height-controllable micro-protruding structure (14). The test apparatus and the test method therefor improve from μm/s to m/s in terms of scratching speed, faithfully restore the processing speed of abrasive grains in an ultra-precise grinding process, accurately collect in a high-speed scratching condition scratching force signals of different nanometer depth of cut conditions, provide clear scratching force-scratching depth correlations, and, by forming the micro-protruding structure (14) on the surface of the specimen (5), prevent a diamond needle from leaving a long scratch on the ...

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Номер записи: 17
14-06-2018 дата публикации

ULTRASONIC CUTTER DETECTION METHOD AND DEVICE

Номер: WO2018103323A1
Автор: KANG, Renke, DONG, Zhigang, ZHU, Xianglong, WANG, Yidan, ZHANG, Xun, ZHOU, Ping, JIA, Zhenyuan
Принадлежит:

An ultrasonic cutter (8) detection method and device, the detection method comprises the following steps: preliminary detection: frequency amplitude detection and fall-of-potential detection, if the ultrasonic cutter (8) fails the above two detection solutions in the preliminary detection, then repeat the above two detections; if it still fails the above two detection solutions, the ultrasonic cutter (8) is judged to be unqualified; redetection: free modal detection and pressure modal detection. Using differences of the ultrasonic cutters (8) surface in micro-crack geometries and crack directions that result in different degrees of sensitivity of the crack to different ultrasonic vibration modes, combined with the fall-of-potential method and frequency amplitude detection method, can improve a detection rate of the unqualified ultrasonic cutter (8) and a detection velocity.

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Номер записи: 18
01-08-2023 дата публикации

Ultrasonic-laser collaborative grinding wheel dressing device and method

Номер: CN116512129A
Автор: DONG ZHIGANG, WANG YIFAN, JIAO RONGZHE, DING KANG, BAO YAN, KANG RENKE, NIU FANGYONG
Принадлежит:

The invention provides an ultrasonic-laser collaborative grinding wheel dressing device and method. The device comprises a servo motor, a grinding wheel ultrasonic clamping device, a formed grinding wheel, a CCD camera, a laser ablation head, a three-dimensional moving table, an image acquisition card, an optical fiber laser, a backlight source and a computer. A grinding wheel is clamped on the grinding wheel ultrasonic clamping device, and a servo motor drives the clamping device and the grinding wheel to rotate in the vertical direction. The CCD camera and the backlight source are horizontally arranged on the two sides of the grinding wheel and used for feeding back the removing condition of scraps on the surface of the grinding wheel through ultrasonic vibration when the grinding wheel is trimmed through laser to the computer. The computer controls the laser ablation head on the three-dimensional moving table to trim the grinding wheel, and the grinding wheel contour and the surface ...

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Номер записи: 19
07-11-2019 дата публикации

FORWARD-REVERSE FEED HELICAL MILLING METHOD

Номер: WO2019210505A1
Автор: KANG, Renke, DONG, Zhigang, YANG, Guolin, ZHU, Xianglong, ZHOU, Ping, GAO, Shang, GUO, Dongming
Принадлежит:

A forward-reverse feed helical milling method, having the following steps: determining the diameter D1 of a pre-machined hole; on the basis of the final diameter D of a through-hole to be machined and the diameter D1 of the pre-machined hole, selecting a suitable tool; clamping the workpiece to be machined and the tool; the tool forward-feed machines the pre-machined hole, the diameter of the pre-machine hole being D1, D1 Подробнее

Номер записи: 20
07-04-2023 дата публикации

Local pressure real-time monitoring and control method for double-sided grinding machine

Номер: CN115922559A
Автор: GUO JIANG, KANG RENKE, PAN BO, LIAN JIALE, SI LIKUN, GAO FEI
Принадлежит:

The invention discloses a local pressure real-time monitoring and control method for a double-sided grinding machine. The local pressure real-time monitoring and control method comprises the following steps: detecting and analyzing local pressure data of a contact surface of an upper grinding disc and a lower grinding disc under a static condition; measuring local pressure between the upper grinding disc and the workpiece and local pressure between the lower grinding disc and the workpiece during loading; local pressure data in the machining process are collected in real time; and the surface shape of the grinding pad is trimmed by adopting a proper method. Local pressure is collected through the grid type thin film pressure sensor, the pressure distribution condition on the surface of the grinding disc is presented in a digital array mode, and intuition and clearness are achieved. Before machining, the problems that impurities on the disc face of the grinding disc scratch a workpiece and ...

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Номер записи: 21
06-06-2023 дата публикации

Focusing ultrasonic atomization cooling chip removal integrated ultrasonic-assisted cutting device

Номер: CN116214737A
Автор: WANG YIDAN, KANG RENKE, WANG ZHONGWANG, DONG ZHIGANG, MA HAONAN
Принадлежит:

The invention provides an ultrasonic-assisted cutting device integrating focused ultrasound, atomization, cooling and chip removal. The ultrasonic cutting tool comprises an ultrasonic cutting tool body and a focused ultrasonic atomization cooling chip removal unit, and the ultrasonic cutting tool body is used for machining the ceramic matrix composite. The focused ultrasonic atomization cooling chip removal unit can discharge chips on the surfaces of a tool and a workpiece in the ceramic matrix composite machining process through steam mist jet flow generated by a focused spherical shell connected to the outer portion of the ultrasonic cutting tool body in a sleeving mode, and the purposes of reducing the cutting temperature and flushing away the chips are achieved. The ultrasonic cutting tool body and the focusing ultrasonic atomization cooling chip removal unit are both connected with the ultrasonic power source, and ultrasonic vibration parameters of the ultrasonic cutting tool body ...

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Номер записи: 22
25-07-2023 дата публикации

Oscillating cutting-measuring integrated method based on optical rotation system

Номер: CN116475589A
Автор: KANG RENKE, JIAO RONGZHE, ZHANG DEHAN, MA HONGBIN, DONG ZHIGANG, BAO YAN, MA GUANGYI
Принадлежит:

The invention discloses a swing type cutting-measuring integrated method based on an optical rotation system, and aims to solve the problems of small cutting depth, large kerf taper, much deposition and recasting at a notch, poor cutting surface quality, low cutting efficiency and the like in the cutting process of a difficult-to-machine material. According to the method, translation and deflection of an incident light beam are achieved by controlling a translation module and an offset module of an optical rotation system, the shape and size of an annular light spot are controlled, and real-time dynamic and uniform distribution of energy in a cutting track and effective elimination of laser products are achieved in combination with variable-speed reciprocating motion of a movable platform. After layer-by-layer removal, low-energy linear scanning fine trimming of the cutting surface is carried out, and the cutting surface shapes with zero taper, positive taper and reverse taper can be realized ...

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Номер записи: 23
21-04-2011 дата публикации

LASER PROCESSING GAS-MELT RATIO DETECTION DEVICE AND METHOD THEREOF

Номер: IB2011044837A1
Автор: WANG, Xuyue, WANG, Lianji, XU, Wenji, LIANG, Yande, KANG, Renke, GUO, Dongming
Принадлежит:

A laser processing gas-melt ratio detection device comprises a light source (1), a first optical lens group (2), a second optical lens group (10), a slit(3), a first steering reflector (4), a second steering reflector(8), a first main reflector (5), a second main reflector (7), a glass container (6), a research object (D), a color knife edge (9) and a high-speed recorder analyzer (11).The first main reflector (5) and the second main reflector (7) are symmetrically arranged at two ends of the glass container (6).The first optical lens group (2) is located between the light source (1) and the slit (3). The second optical lens group (10) is located between the color knife edge (9) and the high-speed recorder analyzer (11). The first steering reflector (4) is located behind the slit (3). The second steering reflector (8) is located between the second main reflector (7) and the color knife edge (9). When the laser is used for processing, the state of processing gasification material is generated ...

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Номер записи: 24
04-04-2023 дата публикации

Device and method for measuring upper polishing disk and lower polishing disk of double-sided polishing machine

Номер: CN115900631A
Автор: ZHU XIANGLONG, KANG RENKE, DONG ZHIGANG, JIA YUFAN, YANG LEI
Принадлежит:

The device comprises a supporting frame and a measuring unit, when the upper polishing disc and the lower polishing disc are measured, the upper polishing disc is placed on the supporting frame, and two laser distance measuring sensors can scan all points on the upper polishing disc face and the lower polishing disc face at the same time through gear transmission and linear guide rail transmission; and the planeness of the upper and lower polishing discs can be calculated, so that the matching condition of the upper and lower discs can be reflected. When the laser distance measuring sensor A is kept immobile and the lower polishing disc is rotated, the circular run-out of the lower polishing disc can be measured, the machining stability of the polishing machine can be efficiently and accurately measured, and the assembling precision of the polishing machine can be reflected. Error checking can be achieved through the two standard optical flat crystals, the measurement precision can be improved ...

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Номер записи: 25
06-06-2023 дата публикации

Fixture and method for machining outer contour surface of non-rotary conical thin-wall part

Номер: CN116214746A
Автор: ZHU XIANGLONG, KANG RENKE, DONG ZHIGANG, ZHANG ZHIYUAN, ZHANG JINHAO
Принадлежит:

The invention discloses a clamp and method for machining the outer contour face of a non-rotary-body conical thin-wall part, the clamp comprises an outer supporting unit, an inner supporting unit and a tailstock unit, the outer supporting unit is used for conducting contact positioning on the outer contour face of a workpiece, and the inner supporting unit is used for conducting contact positioning on the inner contour face of the workpiece; the internal supporting unit is used for conducting contact positioning on the inner contour face of a workpiece, and the tailstock unit is used for conducting contact positioning on the spherical end face of the left end of the outer contour face of the workpiece. Due to the fact that the center ejector rod, the first supporting piece, the flexible support, the second supporting piece, the flexible support, the external support, the flexible support, the tail tip cone and the auxiliary parts of the tail tip cone are adopted for supporting and clamping ...

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Номер записи: 26
21-07-2023 дата публикации

Ultra-thin laser crystal chemical mechanical polishing solution based on light field coupling and preparation and polishing methods of ultra-thin laser crystal chemical mechanical polishing solution

Номер: CN116463061A
Автор: GAO SHANG, KANG RENKE, ZHANG XIAOYU, DONG ZHIGANG, GUO XINGCHEN
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The invention provides an ultrathin laser crystal chemical mechanical polishing solution based on light field coupling as well as a preparation method and a polishing method of the ultrathin laser crystal chemical mechanical polishing solution. A used polishing solution comprises a component A and a component B, the component A is composed of an oxidizing agent, a grinding material, a dispersing agent and deionized water, and the component B is composed of an ultraviolet light photocatalyst and deionized water. According to experimental setting, the rotating speed of a polishing disc is 60-80 r/min, the polishing pressure is 20-40 KPa, the flow speed of polishing liquid is 6-10 ml/min, ultraviolet irradiation is carried out, and the component A and the component B are dropwise added to a polishing pad at the same flow speed. According to the laser crystal machined through the polishing method, the surface roughness Ra ranges from 0.15 nm to 0.3 nm, the surface precision PV value is lambda ...

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Номер записи: 27
12-05-2023 дата публикации

Femtosecond laser ablation composite material groove width prediction method

Номер: CN116100147A
Автор: KANG RENKE, MA GUANGYI, JIAO RONGZHE, YANG FENG, BAO YAN, DONG ZHIGANG
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The invention provides a method for predicting the groove width of a femtosecond laser ablation composite material. The method comprises the following steps: carrying out a femtosecond laser ablation experiment on the composite material to obtain an ablation threshold value Fth of the material; a laser paddle-tumbler ablation model is established, the total energy density Fw accumulated at one point in a model infinitesimal area reaches the ablation threshold value Fth of the material, and the material is ablated; the method comprises the following steps: performing a paddle-tumbler ablation experiment at different laser scanning rates to obtain a corresponding relationship between different laser scanning rates v and incubation coefficients, selecting a corresponding incubation coefficient k after selecting the laser scanning rates v and energy Ep according to the obtained relationship between the scanning rates and the incubation coefficients, and further predicting the paddle-tumbler ...

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Номер записи: 28
23-06-2023 дата публикации

Integrated device and method for cutter disassembly and assembly and abrasion detection

Номер: CN116296963A
Автор: DONG ZHIGANG, KANG RENKE, WANG ZHONGWANG, BAO YAN, MA HAONAN
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The invention belongs to the field of tool detection equipment, and relates to an integrated device for tool dismounting and wear detection. The integrated device is composed of a detection device rack, a camera support, a camera, a cutter wear detection device and a cutter disassembly and assembly device. According to the cutter dismounting and mounting device, a spring clamp and a three-jaw chuck are used for clamping a cutter to be matched with motor driving to realize rapid and accurate dismounting and mounting of the cutter; a magnetic chuck and a spring clamp on the tool wear detection device accurately position and clamp a tool in a magnetic matching mode, and six motors are used for controlling the tool to move on the X plane, the Y plane and the Z plane and to rotate on the X axis, the Y axis and the Z axis respectively. The device is simple and compact in structure, convenient to operate, high in detection efficiency and high in universality, it can be guaranteed that clamping ...

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Номер записи: 29
04-04-2023 дата публикации

Method for machining rectangular inclined hole through ultrafast laser

Номер: CN115890024A
Автор: KANG RENKE, MA GUANGYI, YANG FENG, DONG ZHIGANG, GONG ZHAN
Принадлежит:

The invention provides a method for machining a rectangular inclined hole through ultrafast laser. The method is based on a line-surface-body layer-by-layer progressive research thought, and comprises the following steps: firstly, carrying out an ultrafast laser paddle-tumbler test to determine parameters such as a light spot overlapping rate and laser power; secondly, carrying out a line overlapping ratio test, and selecting a proper line overlapping ratio according to related evaluation standards; secondly, carrying out a surface scanning test, obtaining a mapping relation of ablation depth related parameters according to a processing effect, and meanwhile, selecting a proper surface scanning track and a proper feeding amount as a focus downward moving distance; and finally, a through hole test is conducted, test machining parameters are optimized according to actual machining requirements and weights, and machining of the rectangular inclined hole is finally achieved. The method for ...

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Номер записи: 30
13-06-2023 дата публикации

Method for establishing ultrasonic-assisted grinding simulation model of fiber reinforced composite material based on multi-scale analysis

Номер: CN116258046A
Автор: KANG RENKE, BAO YAN, YUAN GUOQING, DONG ZHIGANG, RAN YICHUAN
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The invention discloses a method for establishing a simulation model of ultrasonic-assisted grinding of a fiber reinforced composite material based on multi-scale analysis, which comprises the following steps of: firstly, establishing a micro-scale representative volume unit of the composite material, and obtaining mechanical properties of the micro-scale representative volume unit of the composite material through finite element analysis; comprising composite material modulus, failure strength and the like, and endowing the composite material modulus, the failure strength and the like as material attributes of the fiber bundle, then determining a damage failure criterion of the fiber bundle, and establishing a mesoscale simulation model of the fiber reinforced composite material. And a corresponding grinding wheel model is established according to the required grinding wheel specification, and finally the ultrasonic-assisted grinding machining simulation model of the mesoscale fiber reinforced ...

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Номер записи: 31
07-04-2023 дата публикации

Single-particle scratching method for laser ablation textured surface

Номер: CN115931617A
Автор: KANG RENKE, NIU FANGYONG, SUN WENCHAO, DONG ZHIGANG, CAI XINTONG
Принадлежит:

The invention provides a single particle scratching method for a laser ablation textured surface. Based on an experimental method combining laser ablation surface texture and single-particle scratching, a laser beam is focused on the polished workpiece surface through an external optical system, the machinability of the material surface is improved through the laser ablation surface texture, tool setting operation is conducted on the workpiece surface through an acoustic emission device, and the machining precision of the material surface is improved. Then a single particle is used for scratching on the laser irradiation surface, a fixed cutting depth experiment and a variable cutting depth experiment are achieved by adjusting a machine tool workbench, a machine tool spindle controls scratching feeding motion of diamond abrasive particles, and a dynamometer is used for collecting data of scratching force changes in the process; according to the experimental method, the material removal ...

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Номер записи: 32
04-04-2023 дата публикации

Control method for nonlinear error of numerical control machine tool

Номер: CN115903655A
Автор: KANG RENKE, WEI ZHAOCHENG, LUO HENG, DONG ZHIGANG, WANG YIDAN
Принадлежит:

The invention discloses a control method for nonlinear errors of a numerical control machine tool, and relates to a method for improving the machining quality of the numerical control machine tool. The invention aims to solve the problem that when a numerical control machine tool is used for machining curved surface parts, the machining quality of the parts cannot meet the precision requirement due to non-linear errors caused by the movement of a rotating shaft. The method comprises the following steps: S1, calculating a maximum nonlinear error between two adjacent cutter location points in an APT cutter location file; s2, calculating an error equivalent curvilinear equation according to the two adjacent cutter location points and the nonlinear error value at the maximum nonlinear error; s3, error control is carried out according to the relation between the error equivalent curve equation and the allowable value; and S4, performing inverse kinematics change on the optimized cutter location ...

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Номер записи: 33
30-06-2023 дата публикации

Device for detecting surface damage of metal-based composite material by adopting polarization laser scattering

Номер: CN116359179A
Автор: BAI QIAN, SHI FANGYUAN, KANG RENKE, JIAO YANSONG, PAN RAN
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The invention discloses a device for detecting surface damage of a metal-based composite material by adopting polarization laser scattering. The device comprises a laser, a light path box, a photoelectric detector, a mobile platform and a computer control system, the light path box comprises a beam expander, a polarizer, a polarizing beam splitter, a quarter-wave plate, a Glan mirror and a plastic box; and the computer control system comprises a data acquisition card, a computer and a motion controller, and is used for acquiring and analyzing signals and controlling the mobile platform. According to the invention, optical elements are integrated, P polarized light with adjustable light path for detection can be generated by using the light path box, scattering laser containing damage information can be separated and enhanced, and the detection device is convenient to use and install. According to the invention, the beam expander is adopted, so that the small-range adjustment of the detection ...

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Номер записи: 34
14-07-2023 дата публикации

Monocrystalline silicon complex curved surface weak rigidity reflector manufacturing method

Номер: CN116435000A
Автор: GAO SHANG, KANG RENKE, LI JIANHE, DONG ZHIGANG, ZHU XIANGLONG, LI HONGGANG
Принадлежит:

The invention provides a manufacturing method of a monocrystalline silicon complex curved surface weak-rigidity reflecting lens, which comprises the following steps of: S1, rotationally cutting a monocrystalline silicon ingot by adopting a diamond fretsaw to obtain an outer cylindrical surface of a reflecting mirror; s2, carrying out ultra-precision grinding on the cylindrical surface of the monocrystalline silicon ingot; s3, a diamond wire saw is adopted for rotary cutting, and a weak-rigidity reflecting lens is obtained; s4, performing wet etching on the weak-rigidity reflecting lens; s5, carrying out low-stress clamping on the reflecting lens by adopting a special clamp; s6, a diamond grinding wheel ultra-precision grinding method is adopted for conducting ultra-precision forming machining on the reflecting lens; s7, carrying out ultra-precision polishing on the reflecting lens by adopting an air bag polishing or consolidation soft abrasive grinding wheel grinding method; and S8, carrying ...

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Номер записи: 35
28-04-2023 дата публикации

Wet particle electrolyte electrochemical mechanical polishing method for complex metal structural part

Номер: CN116024644A
Автор: KANG RENKE, CHENG JIRUI, GAO SHANG, DONG ZHIGANG
Принадлежит:

The invention provides a wet particle electrolyte electrochemical mechanical polishing method for a metal complex structural part. Comprising the following steps that a metal sample piece is fixed to a rotating main shaft with a special clamp and axially rotates along with the rotating main shaft, and the metal sample piece needs to be immersed in a reaction tank filled with wet particle electrolyte; under the driving of the rotating main shaft, the metal sample piece and the wet particle electrolyte generate relative motion; the contact area of the single wet particle electrolyte and the metal sample piece is smaller than the area of the metal sample piece; in the polishing process, the metal sample piece is connected with a direct-current power supply anode, a power supply cathode is connected with a cathode of the reaction tank wall, and the anode and the cathode are communicated through wet particle electrolyte. The method has the advantages that the wet particles are adopted as the ...

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Номер записи: 36