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5244 results about "Polishing" patented technology

Polishing and buffing are finishing processes for smoothing a workpiece's surface using an abrasive and a work wheel or a leather strop. Technically polishing refers to processes that use an abrasive that is glued to the work wheel, while buffing uses a loose abrasive applied to the work wheel. Polishing is a more aggressive process while buffing is less harsh, which leads to a smoother, brighter finish. A common misconception is that a polished surface has a mirror bright finish, however most mirror bright finishes are actually buffed.

Ultrasonic control shear thickening and polishing method and device

ActiveCN104191320AAchieve removalStrong shear thickeningVibration amplitudePolishing
An ultrasonic control shear thickening and polishing method comprises the following steps of 1 adding a non-Newtonian fluid polishing solution mixed with abrasive particles and having the shear thickening effect into a polishing pond and fixing a workpiece on a clamp, wherein the clamp is located above the polishing pond; 2 starting a polishing solution circulating system to enable the non-Newtonian fluid polishing solution to be circularly pumped out of the bottom of the polishing solution and fed into the upper portion of the polishing pond; 3 starting an ultrasonic wave generating device, and meanwhile setting the vibration frequency and vibration amplitude to enable the non-Newtonian fluid polishing solution in the polishing pond to rapidly vibrate and produce a strong shear thickening phenomenon; 4 adjusting the clamp to enable the workpiece to perform relative motion, wherein the abrasive particles having the polishing effect produce the micro-cutting effect or chemical mechanical effect on the workpiece to remove materials on the workpiece surface, and accordingly the workpiece surface polishing is achieved. The invention further provides an ultrasonic control shear thickening and polishing device. The ultrasonic control shear thickening and polishing method and device is high in polishing efficiency and low in cost.
Owner:ZHEJIANG UNIV OF TECH

Dust reduction type steel plate double-face efficient polishing device

The invention discloses a dust reduction type steel plate double-face efficient polishing device which comprises an operation chamber. A driven shaft is vertically and rotationally arranged in the operation chamber, and a polishing plate is coaxially and fixedly installed at the bottom end of a driving shaft; a guide rod connected with the left side wall of the operation chamber in a sliding manner is horizontally arranged at the left end of a dual-rectangle-shaped frame, and a sliding rod movably connected with a vertical plate is horizontally arranged at the right end of a support; and a limiting spring is arranged on the sliding rod on the vertical plate at the right end of the upper surface of a bearing table in a sleeving manner, a positioning disc is fixedly installed on the right side of the vertical plate at the right end, a center hole is formed in the center of the positioning disc, and an upper positioning hole and a lower positioning hole which are subject to up-and-down vertical symmetry with respect to the center of the center hole are formed in the positioning disc. The dust reduction type steel plate double-face efficient polishing device is ingenious in structure and reasonable in design; the polishing plate is driven by a driving motor to achieve rotary polishing on a steel plate, the polishing scope is wider, and the steel plate polishing efficiency is improved; and the sliding rod is rotated to drive an L-shaped positioning shaft to rotate, and therefore double-face polishing on the steel plate can be achieved, and the overturning operation is easy and convneient.
Owner:ZHENGZHOU UNIV

Surface contact magneto-rheological flat polishing device and method with uniform magnetic field

ActiveCN103273385AReduce complexityRealize degaussingPolishingMagnetorheological fluid
The invention discloses a surface contact magneto-rheological flat polishing device and method with a uniform magnetic field. The surface contact magneto-rheological flat polishing device with the uniform magnetic field comprises a polishing head, a polishing groove fixed onto a main shaft and a magnetic pole arranged under the polishing groove. The magnetic pole maintains a certain gap from the outer surface of the bottom of the polishing groove; the polishing head comprises a workpiece shaft and a non-magnetic-conducted clamp fixed to the lower end of the workpiece shaft, and a soft magnetic plate is arranged between the non-magnetic-conducted clamp and the workpiece shaft; the polishing head is arranged above the polishing groove; the uniform magnetic field is formed between the magnetic pole and the soft magnetic plate; and the polishing groove is filled with magneto-rheological fluid. The surface contact magneto-rheological flat polishing device and method with the uniform magnetic field can achieve the large-area uniform polishing of a super-smooth large-size flat element and improve the polishing efficiency effectively; reduces the complexity of the motion mode of a workpiece to simplify the device structure; enables the magnetic field to be not easy to attenuate and obtains the uniform magnetic field with a magnetic pole gap of 30 mm; and can achieve demagnetization easily.
Owner:HUNAN UNIV

Optical mirror ion beam nano-precision machining method based on combination of material addition and removal

ActiveCN102642156AEfficient removalAvoid the problem of increased polishing workloadMaterial removalPolishing
The invention discloses an optical mirror ion beam nano-precision machining method based on combination of material addition and removal, and the method comprises the following steps: firstly obtaining an addition function, then measuring the surface shape error of a workpiece to be machined, and determining addition residence time according to a two-dimensional convolution formula by taking a numerical value obtained by inversing a measuring result as the additive amount of materials; according to the addition residence time, using an ion beam polishing system to perform deterministic addition control on the workpiece to be machined so as to form a protective sacrificial layer; measuring the surface shape error of the workpiece to be machined again, and then determining removal residence time according to the two-dimensional convolution formula by taking the measuring result as the removal amount of the materials; and using the ion beam polishing system to perform deterministic removal control on the workpiece until removing the protective sacrificial layer so as to complete optical mirror nano-precision machining for the workpiece to be machined. The optical mirror ion beam nano-precision machining method has the advantages of simple processing steps, less investment in equipment and high machining efficiency, and can be used for effectively improving the surface roughness of an optical element, correcting the medium-high frequency error, and the like.
Owner:NAT UNIV OF DEFENSE TECH

Stainless steel plate 8K mirror surface processing method

The invention relates to a stainless steel plate 8K mirror surface processing method, which is characterized in that the method comprises the following steps of: 1) water washing: cleaning sundries on the surface of a stainless steel plate; 2) rough polishing: polishing the surface of the stainless steel plate by using a rough polishing abrasive tool, i.e. a graphite wheel till the surface is evenly treated and is free of pocking marks, wherein the polishing gap is half of diameter of the polishing wheel; 3) precise polishing: precise polishing the surface of the stainless steel plate by using a precise polishing abrasive tool, i.e. a wool felt, in combination with polishing solution till the surface is free of wheel knurls and fine scratches and is uniform; 4) water washing and drying: washing the stainless steel plate with water and blow-drying the stainless steel plate by using a dryer; and 5) film sticking: sticking a film by using a stainless steel plate film sticking machine. By using the stainless steel plate 8K mirror surface processing method, the surface of a stainless steel plate production can be polished to an 8K mirror surface from a 2B or rougher surface, the mirror surface is bright, gorgeous, attractive and generous, and the processed product satisfies the requirements in SN/T1671-2005 Rules for Inspection of Surface Quality of Stainless Steel Decoration Sheets for Export.
Owner:SHENYANG YUANDA ALUMINUM IND GROUP

Integrated equipment for cutting, drilling and polishing aluminum substrate

ActiveCN110640477ASolve cutting and grindingSolve the problem that drilling cannot be completed at one timeWork clamping meansOther manufacturing equipments/toolsCircular discPolishing
The invention relates to the technical field of aluminum substrate production and machining, in particular to integrated equipment for cutting, drilling and polishing an aluminum substrate. The integrated equipment comprises a feeding assembly, a cutting assembly, a polishing assembly and a drilling assembly, wherein the polishing assembly comprises a turntable, a rectangular table, two end polishing mechanisms and two edge polishing mechanisms; the feeding assembly comprises a first fixed clamp and a first movable clamp; the arrangement directions among the turntable and the two end polishingmechanisms and among the rectangular table and the two edge polishing mechanisms are perpendicular to the arrangement direction among the first fixed clamp and the first movable clamp; the cutting assembly comprises a circular saw blade and a moving mechanism; the circular saw blade is fixedly connected with the moving mechanism through a telescopic cylinder; the drilling assembly comprises a discharging mechanism and a drilling mechanism; and the first fixed clamp, the first movable clamp, the turntable and the rectangular table are sequentially arranged in a straight line. According to theintegrated equipment, the problem that cutting, grinding and drilling cannot be completed at a time when the aluminum substrate is machined, the time is saved, and the manpower and the cost are reduced.
Owner:赣州逸豪新材料股份有限公司

Industrial robot high-precision constant-force grinding method based on curved surface self-adaption

The invention discloses an industrial robot high-precision constant-force polishing method based on curved surface self-adaption. The method comprises the steps of acquiring scanning sampling point data information of the surface of a workpiece to be polished by adopting a linear structured light scanning mode, and acquiring an ordered point cloud model of the workpiece to be polished; through point cloud preprocessing, establishing an STL model of the surface of the to-be-polished workpiece; extracting and utilizing geometric features and topological features of the STL model on the surface of the to-be-polished workpiece, and dividing the curved surface of the to-be-polished workpiece into a plurality of planes without holes; constructing a feature frame according to the STL model of thesurface of the to-be-polished workpiece, and generating a robot polishing motion track by adopting a cutting plane projection method; and in the robot grinding process, constant-force grinding control is achieved according to real-time force feedback. The method has the beneficial effects that the constant-force grinding task for any curved surface can be achieved; the adaptability of the grinding method to the curved surface is improved; the grinding precision is improved; and therefore the intelligence and the automation level of a robot grinding system can be improved.
Owner:SOUTHEAST UNIV

Ultra-smooth plane grinding polishing device and method for online trimming flexible polishing pad

The invention relates to an ultra-smooth plane grinding polishing device and method for online trimming a flexible polishing pad. The ultra-smooth plane grinding polishing device comprises a cluster magneto-rheological abrasive semi-fixed flexible polishing pad generating device, a workpiece clamping and intermittent adjusting mechanism and a flexible polishing pad real-time trimming device, wherein the cluster magneto-rheological abrasive semi-fixed flexible polishing pad generating device comprises an annular grinding disc, a cluster magnetic pole, a separation disc, a lower end cover and a rotating plate, the workpiece clamping and intermittent adjusting mechanism comprises an inner supporting ring, an outer supporting ring, a planetary gear, a movable cylinder, an upper end cover, a depth scale, a connection shaft, an expansion sleeve, an inner gear and an outer gear, and the flexible polishing pad real-time online trimming device comprises a trimming planetary gear and a magnetic pole. By adopting the ultra-smooth plane grinding polishing device, the whole process of grinding, coarse polishing and fine polishing of the workpiece under the situation that the magneto-rheological liquid is not replaced can be realized, the surface quality of the workpiece is good, and the machining efficiency is high; moreover, the surface and subsurface damage can be avoided, the cost is low, and the ultra-smooth plane grinding polishing device can be used for machining different optical elements and semiconductor substrates.
Owner:GUANGDONG UNIV OF TECH

Tubular product cutting device with polishing function

The invention belongs to the technical field of cutting equipment, and particularly discloses a tubular product cutting device with a polishing function. The tubular product cutting device comprises aworking table, and the working table is provided with a cutting unit, two clamping units and polishing units. The clamping units comprise sliding tables, and two ends of the sliding tables are slidably connected with the two sides of the working table in the conveying direction of a tubular product. Fixed clamps and movable clamps are arranged at the top ends of the sliding tables, wherein the fixed clamps and the movable clamps are mutually symmetric, the fixed clamps are fixedly connected with the sliding tables, and the movable clamps are slidably connected with the sliding tables. First power pieces for driving the movable clamps to slide are arranged on the sliding tables, the polishing units comprise polishing discs and second power pieces for driving the polishing discs to performreciprocating motion in the vertical direction, and a storage cavity for storing the polishing discs is formed in the working table. According to the tubular product cutting device with the polishingfunction, the tubular product is cut, meanwhile, the end part of the tubular product is polished, so that machining is carried out without being divided into two steps, and the machining efficiency isimproved.
Owner:重庆泓通管业有限公司

Mechanical hand for carrying out chamfering polishing on end face of gear and polishing method thereof

The invention provides a mechanical hand for carrying out chamfering polishing on the end face of a gear. A probe at the tail end of the mechanical hand and a polishing head are arranged to be an integrated linkage whole, a master controller enables the probe to make contact with the gear at the set contact pressure value, and the probe is arranged to be a sensor which monitors the contact pressure value in real time. The master controller adjusts the contact pressure value at the next moment. The displacement path of the probe is the polishing path of the polishing head. The invention furtherprovides a polishing method of the mechanical hand for carrying out chamfering polishing on the end face of the gear. The method comprises the steps that 1, the probe makes contact with the edge of the gear at the set contact pressure value; 2, when the gear is rotated, a force sensor feeds the real-time contact pressure value of the probe and the gear back to the master controller; 3, the position of the probe at the next moment is adjusted to enable the probe to be in tight fit with the gear, and copying description is carried out the gear contour; and 4, the polishing head and the probe are in integrated linkage, and the copied contour described by the probe is converted to be the polishing path of the polishing head. The contact force of the probe and the surface of the gear is controllable, the machining precision is high, and polishing quality is good.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Ultra-precision flexible chemical mechanical polishing device and method for micro bearing core element

The invention discloses an ultra-precision flexible chemical mechanical polishing device and method for a micro bearing core element. The core element comprises an inner ferrule, a retainer, a rollingbody and an outer ferrule. The polishing device comprises an element rotation module, an outer ferrule steering module, an element clamping module, a polishing liquid pool rotation module and a support. The element clamping module provides an inner ferrule clamp, a retainer clamp, a rolling body clamp and an outer ferrule clamp in a targeted manner. The polishing method comprises the steps of installing and debugging the polishing device, preparing flexible chemical mechanical polishing liquid, setting polishing process parameters, measuring the surface quality and conducting feedback. The flexible chemical mechanical polishing liquid comprises non-Newtonian fluid, 0.01-40 wt% of grinding particles, 0-10 wt% of an oxidizing agent, 0-10 wt% of a metal complexing agent, 0-5 wt% of a metal corrosion inhibitor and the balance water, and the pH value is 2.0 to 10.0. According to the ultra-precision flexible chemical mechanical polishing device and method, by optimizing the synergistic effect of the chemical reaction and the mechanical force of the force rheological effect, ultra-precision low-damage machining and complex curved surface shape-preserving machining of the surface of the core element can be achieved, and the device and method are green and environment-friendly.
Owner:SOUTHWEST JIAOTONG UNIV +1

Lifting type building steel pipe inner wall derusting and polishing device

InactiveCN111941244ARealize the effect of spacing adjustmentFull rotary grinding actionRevolution surface grinding machinesGrinding drivesReciprocating motionPolishing
The invention discloses a lifting type building steel pipe inner wall derusting and polishing device, and relates to the technical field of building machineries. The lifting type building steel pipe inner wall derusting and polishing device comprises a fixing frame, wherein a polishing mechanism used for derusting the inner wall of a steel pipe is arranged on a second spur rack, and a lifting mechanism used for driving a supporting plate to vertically ascend and descend is in driving connection with a motor; and a rotating mechanism for driving a supporting seat to rotate is arranged at the bottom of the supporting plate. According to the lifting type building steel pipe inner wall derusting and polishing device, the steel pipe is limited through the arranged clamping mechanism, the arranged lifting mechanism can drive the clamping mechanism to drive the steel pipe to vertically reciprocate relative to the grinding mechanism, and under the driving effect of the rotating mechanism, thesteel pipe vertically reciprocates and simultaneously rotates clockwise and anticlockwise alternately; and the full rotary polishing effect of a polishing plate in the polishing mechanism on the innerwall of the steel pipe is achieved; a sleeve wheel in the polishing mechanism rotates, the distance adjusting effect of the polishing plate relative to a stand column can be achieved, flexible adjustment is achieved according to the steel pipes with different inner diameters, and efficient and comprehensive rust removal of the steel pipes is guaranteed.
Owner:中机城市建设有限公司

Device and method for polishing symmetrical optical component of small-caliber rotating shaft

The invention discloses a device and a method for polishing a symmetrical optical component of a small-caliber rotating shaft. The device comprises a sealed container mechanism, a workbench drive system which is installed in an inner cavity of the sealed container mechanism and a polishing fluid circulating system which is connected with the sealed container mechanism; and a negative pressure space is formed in the upper part of the inner cavity of the sealed container mechanism. During the polishing, a suction effect of negative pressure difference is utilized for sucking and compositing polishing fluid, a negative pressure cavitation effect is utilized for machining a workpiece surface, a normal pressure environment of machining is changed into a negative pressure environment, air disturbance in an injection process is reduced, a polishing point can be reduced, and the sliding friction function and stability of micro and fine abrasive particles are increased; and moreover, the negative pressure cavitation effect forms strong cavitation shock wave and high speed micro jet, so that the removal efficiency of the workpiece surface is increased. Materials are removed under the combined action of abrasive particle cutting and cavitation erosion, so that the surface with high quality is obtained. The device is suitable for polishing various rotating symmetroid optical components, and has a high practicable value in automatic processing.
Owner:HUNAN UNIV

Polishing and deburring device for side wall of metal short pipe

InactiveCN111002146AFull deburring effectTips for Deburring EfficiencyEdge grinding machinesGrinding drivesRotational axisReciprocating motion
The invention discloses a polishing and deburring device for a side wall of a metal short pipe and relates to the technical field of machining. The device comprises a supporting frame, wherein a rotating shaft is rotationally installed on the supporting frame, the supporting frame is coaxially fixed to an upper end of the rotating shaft, a clamping mechanism used for clamping and fixing a metal short pipe is arranged on the supporting frame, a dust collection box is fixed to the top of the supporting frame, and a dust suction mechanism communicated with the dust collection box is arranged in the metal short pipe. The device is advantaged in that the arranged clamping mechanism is used for stably clamping and fixing the metal short pipe, the arranged lifting mechanism can drive a rotating polishing strip plate to do vertical reciprocating motion, the full deburring effect on different vertical height position areas of an inner wall of the metal short pipe is achieved, the arranged rotating shaft can drive the supporting frame to rotate, the supporting frame drives the metal short pipe on the supporting frame to rotate, deburring efficiency of the inner wall of the metal short pipe is greatly improved, dust generated in the polishing and deburring process can achieve the efficient dedusting effect through a dust suction mechanism, and the deburring process is more environmentallyfriendly.
Owner:武文家

Multi-abrasive tool

A multi-abrasive tool is constituted by a support on which abrasive elements are present. Such abrasive elements are arranged in a manner so as to form one or more paths along which the successive abrasive elements have grain size sequentially increasing or decreasing by an arbitrary quantity when passing from on element to the next. Such principle gives rise to abrasive tools with different conformation both for polishing machines and for grindstones. For roto-orbital and planetary polishing machines, and optionally orbital, such support is circular and the grain sequence is circumferential, or radial, or in both directions. A first tool is constituted by contiguous (or non-contiguous) circular rings, that are differently abrasive. A second tool comprises differently abrasive elements arranged along the circular peripheral edge. A third tool comprises differently abrasive elements arranged along a spiral path of 360° starting from the edge. A fourth tool comprises two 180° spiral paths with reversed roughness sequences. A fourth tool comprises pairs of differently abrasive small cylinders fixed to a plate on concentric circumferences. A fifth tool is obtained directly on the plate of the polishing machine by means of reliefs and spacers for fixing differently abrasive sectors. For linear polishing machines, the abrasive support is a belt along which differently abrasive rectangular or oblique zones follow each other. For alternative polishing machines, the abrasive support is a plate shaped like the aforesaid belt. For tools to use with grindstones, the multi-abrasive element has a cylindrical rotation symmetry, or conical with rounded tip, or spherical symmetry.
Owner:MA VA SRL

Part clamping and polishing machine equipment and working method thereof

The invention discloses part clamping and polishing machine equipment and a working method thereof, which is used for solving the problems of inconvenient clamping and large operating difficulty whenan existing clamping device clamps the inner and outer ends of a tubular part in the perpendicular direction. The part clamping and polishing machine equipment comprises a machine frame and a fixed frame, sliding chutes are symmetrically formed in the two side walls of the interior of the machine frame, the two ends of the bottom of the fixed frame are inserted into the two sliding chutes in a sliding manner, and the fixed frame is fixedly connected with the sliding chutes through bolts. The tubular part is extruded in the up, down, left and right directions through four arc clamping pieces, clamping is convenient, movable plates are pulled downward, so the movable plates slide on supporting rods to be fit with the upper end face of the machine frame, the movable plates move downwards, andthus a plurality of transparent polyethylene (PE) plates on louver boards are driven to be unfolded; by unfolding the transparent PE plates on the louver boards, crushed materials are conveniently sheltered during polishing and fall into a collecting tank; and the tubular part is polished through clamping and rotation of a circular clamping holder.
Owner:ANHUI SANLIAN UNIV
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