357 results about "Diamond grinding" patented technology

The invention provides a steel formwork surface grinding device. The steel formwork surface grinding device comprises a wall-climbing robot, a mounting mechanism and a grinding mechanism. The wall-climbing robot is provided with an installation position, the installation mechanism comprises a frame assembly and a driving assembly, the frame assembly is detachably connected to the installation position, the driving assembly is installed on the frame assembly, the grinding mechanism comprises a first flange, a rotating rod, an end plate, a steel wire grinding piece and a diamond abrasive grinding piece, one end of the rotating rod is fixedly connected with the first flange, and the other end of the rotating rod is fixedly connected with the end plate. The steel wire grinding piece and the diamond grinding piece are both installed on the end plate, the steel wire grinding piece is arranged on the outer side of the diamond grinding piece in a surrounding mode, and the first flange can be connected to the driving assembly so that the driving assembly can drive the grinding mechanism to rotate. In this way, the grinding mechanism is driven to rotate through the driving assembly, and the wall-climbing robot moves on the to-be-ground steel formwork, so that concrete sticky skin and rust on the steel formwork can be cleaned up.

The invention discloses grinding equipment and a grinding method for metal cutting milling cutter machining, and relates to the technical field of grinding machine tools. The grinding equipment for metal cutting milling cutter machining comprises a grinding machine base, a spindle box is fixedly connected to the top of the grinding machine base, a chuck is movably connected to the right side of the spindle box, and a movable seat is movably connected to the position, located on the right side of the spindle box, of the top of the grinding machine base. According to the grinding equipment and the grinding method for metal cutting milling cutter machining, an air supply motor drives a spiral plate to rotate, so that the spiral plate continuously feeds external air into a splash guard through an air supply pipe, and air flow is formed to be blown to a diamond grinding wheel; and cooling liquid on the surface of the diamond grinding wheel and loose abrasive particles and chippings on the surface can be blown to the right side to be away from the surface of the diamond grinding wheel, so that the to-be-ground surface of the diamond grinding wheel is kept clean, the abrasive particles and chippings are prevented from participating in grinding to influence the surface quality of the milling cutter, and the machining efficiency is improved.

The invention provides a multi-station diamond grinding numerical control machine tool, and relates to the technical field of diamond grinding, the multi-station diamond grinding numerical control machine tool comprises a vertical plate, the surface of the vertical plate is fixedly connected with a bottom table, a working table, a top table, an air pump, a diamond detector and a wiping block in sequence from bottom to top, and the multi-station diamond grinding numerical control machine tool further comprises a plurality of linear sliding tables arranged between the top table and the working table in an annular array; dD direct-drive multi-axis mechanical arms are installed on the sliding table surfaces of the linear sliding tables, rotary grinding discs are arranged on the surfaces of the workbenches, liquid supply pipes are arranged above the rotary grinding discs, liquid outlet adjusting pieces are arranged in the liquid supply pipes, air return cylinders are arranged on the surfaces of the liquid supply pipes, and first restraint rings and second restraint rings are arranged on the surfaces of the workbenches. A filtering piece is arranged on the surface of the top table; according to the diamond grinding device, the air wall is formed above the rotary grinding disc, dust generated in the diamond grinding process and splashing grinding fluid or grinding agents can be effectively limited in one area, and therefore the device can be cleaned conveniently, and by-products can be collected and treated conveniently.

The present invention discloses a cold pressing and forming device for the production of a metal-bonded diamond grinding wheel in the field of diamond grinding wheel forming technology. A cold pressing and forming assembly is installed on the basic assembly. The output end of the hydraulic telescopic cylinder is fixedly assembled with an upper mold, and a lower mold adapted to the upper mold is fixed on the basic assembly. A flattening assembly is assembled in the lower mold, and a cooling assembly driven by the flattening assembly is installed in the basic assembly. By setting the flattening assembly, the cold pressing and forming disk is set to be rotatable and relatively rotate with the lower mold, which can flatten the raw materials on the cold pressing and forming disk without affecting the use of the lower mold. The cooling assembly is added and the cooling assembly is driven to act when the flattening assembly acts to achieve an effective heat exchange effect, solving the problem that it is difficult to effectively dissipate heat from the overall cold pressing of the grinding wheel. A demoulding assembly is added to complete the automatic mold lifting operation.

The invention discloses a method for predicting the service life of a diamond grinding wheel of a solid carbide cutter grinding spiral groove, which comprises the following steps that a machine learning module is adopted to estimate the abrasion loss of the grinding wheel diameter along the axial direction of the grinding wheel, and the input quantity of machine learning is cutter parameters, grinding wheel parameters, grinding parameters and other information; the output quantity of machine learning is the abrasion loss of the grinding wheel along the axial diameter; the input quantity of machine learning is substituted into a machine learning module to predict the abrasion state of the grinding wheel; if the set abrasion loss is exceeded, the grinding wheel is refinished and fed back to the machine tool, otherwise, the abrasion state, the grinding wheel information, the grinding path and the spiral groove information of the grinding wheel are substituted into a module for calculating the front angle and core thickness error, the front angle and core thickness error is obtained, and whether the tolerance requirement is met or not is judged; under the condition that the front angle error and the core thickness error meet the requirements, the spiral groove is ground; the shape of a machined spiral groove is obtained multiple times in an image mode and fused into an accurate contour, then the shape of the grinding wheel is calculated according to the enveloping principle, and grinding wheel abrasion information estimated through machine learning is updated. According to the scheme, the service life of the grinding wheel can be remarkably prolonged, the grinding time of the spiral groove of the cutter is shortened, and efficient machining of the spiral groove of the hard alloy cutter is achieved.

The utility model discloses a diamond grinding brush applied to glass and ceramics, and relates to the technical field of diamond grinding brushes, the diamond grinding brush comprises a mounting disc and a diamond brush head, the front surface of the mounting disc is provided with a front positioning groove, the back surface of the mounting disc is provided with a back positioning groove, and the back surface of the diamond brush head is fixedly provided with a connecting plate; a connecting block is fixedly installed on the side, away from the diamond brush head, of the connecting plate, an inserting hole is formed in the inner side of the connecting block, and the side, close to the connecting block, of the diamond brush head is inserted into the inner side of the front positioning groove. By the adoption of the structure, after the clamping spring and one fixing bolt are taken down, the limiting frame is pulled out, and at the moment, the spring in the mounting cavity resets to push the limiting plate to move and drive the insertion block to be separated from the insertion hole of the connecting block, so that the diamond brush head can be conveniently and rapidly disassembled, assembled and replaced.

The invention discloses a preparation method of a micro-comb-tooth structure diamond grinding wheel with abrasive particle positive relief angles and the obtained diamond grinding wheel, and the preparation method comprises the following steps: step 1, preparing grooves which are arranged in order to form a certain array on the circumferential surface of a grinding wheel base body through precision milling, and directionally bonding diamond abrasive particles in the grooves by using conductive adhesive; nickel-cobalt alloy is deposited through a pulse electroplating method to achieve mechanical solidification of the abrasive particles; 2, the grinding wheel obtained in the step 1 is shaped through a pulse laser system, and effective control over the outer circumference run-out of the grinding wheel is achieved; 3, the abrasive particle positive relief angle, obtained in the step 2, of the grinding wheel is subjected to forming machining; and 4, micro comb tooth structure machining is conducted on the grinding wheel in the step 3.

The utility model discloses an automatic trimming module for a grinding wheel of a grinding machine, which relates to the technical field of grinding machines, has the advantage of automatically trimming the grinding wheel on the grinding machine, and is characterized in that the automatic trimming module comprises a working table, a vertical plate is vertically arranged at the top end of the working table, and a grinding assembly for grinding a workpiece is arranged on the vertical plate; the top end of the workbench is horizontally and slidably connected with a machining base used for containing a workpiece through a moving part, and two diamond grinding bowls used for grinding a grinding wheel in the grinding assembly are arranged on the portion, on one side of the machining base, of the workbench.

The invention particularly discloses a wafer heavy scratch three-dimensional shape repairing process based on a DFG 8560 single-axis accurate grinding mode, and aims to solve the problems that deep subsurface damage is introduced by rough grinding in a traditional double-stage grinding process, the machining efficiency is low, and material waste is serious. The process comprises the following steps: identifying a heavy scratch defect existing on the surface of a wafer through an automatic optical detection system; a ceramic bond diamond grinding wheel with the particle size of 8000 is adopted, uniaxial accurate grinding is conducted through ultrapure water cooling under the optimized parameters that the rotating speed of a main shaft is 1300-2300 rpm, the rotating speed of a workbench is 1785-2100 rpm and the rotating speed ratio is 0.6-1.3, and three-dimensional shape repairing is directly completed by skipping rough grinding; the rotating speed and pressure of grinding are dynamically regulated and controlled in three stages, the total time is less than or equal to 135 seconds, and the removal amount is 6-12 microns. By the adoption of the technical scheme, the surface roughness Ra can be smaller than 0.5 nm, the subsurface damage layer can be smaller than 50 nm, the repair success rate is larger than 98.5%, the machining time is remarkably shortened by 35% or above, and the material removal amount is reduced by 40%.

The invention relates to a diamond grinding tool capable of preventing workpieces from being scratched, and belongs to the field of grinding machining. Comprising a plurality of grinding pieces and a base body, the multiple grinding pieces are arranged on the base body in a winding mode, a gap between every two adjacent grinding pieces is a chip removal water through groove, and the multiple grinding pieces and the multiple chip removal water through grooves form an annular structure; the grinding part is composed of a grinding part base body and a grinding layer, the grinding layer is composed of a binding agent and a plurality of diamond particles, the diamond particles are solidified on the grinding part base body through the binding agent, and the diamond particles are arranged in a single layer in the circumferential direction of the grinding layer in the rotating direction of the grinding tool. According to the grinding tool, falling diamond particles can directly fall into the chip removal and water passing groove and are discharged out of the grinding tool under the action of centrifugal force and cooling water, the diamond particles do not pass through a grinding area any more, the stagnation or rolling or sliding process of the diamond particles between the surface of a grinding tool binding agent and a workpiece is eliminated, and the scratch-free effect of the workpiece is achieved.

The invention discloses a method for preparing a diamond grinding wheel through a binding agent doped with a rare earth material, and particularly relates to the technical field of diamond grinding wheels, and the method comprises the steps of S1, diamond abrasive particle pretreatment, S2, composite binding agent preparation, S3, gradient charging and S4, spark plasma sintering. According to the method, abrasive particle concentration and density gradient distribution is formed on a grinding wheel working layer through a gradient charging process, and a reinforced reaction layer is formed on a diamond-binding agent interface in combination with a rare earth additive, so that remarkable improvement of the grinding efficiency, great reduction of the abrasive particle falling-off rate and optimization of comprehensive mechanical properties are synergistically realized; and meanwhile, the impact resistance and the heat dissipation capacity are enhanced through the edge strengthening area and the multi-stage pore structure, and the application scene in the high-hardness material machining field is effectively expanded.

The invention discloses an automatic compensable grinding and polishing machining method for a hemispherical harmonic oscillator. The method comprises the steps that a diamond grinding wheel with the first granularity is used for conducting generating method machining on a workpiece according to the first feeding speed; replacing a diamond grinding wheel with a second granularity, performing tool setting to obtain an actual position of machining feeding, and performing generating method machining on the workpiece again according to a second feeding speed from the actual position; the polishing wheel is replaced, tool setting is carried out to obtain the actual position of machining feeding, generating method force control polishing is carried out on the workpiece from the actual position, workpiece in-place measurement is carried out after polishing, compensation polishing is carried out according to the in-place measurement result till the requirement is met, and the hemispherical harmonic oscillator is obtained. The problem of automatic tool changing in the generating method hemispherical harmonic oscillator machining process can be solved, the tolerance requirement for tool manufacturing is lowered, the process time is saved, the machining procedure is completed on the premise of one-time clamping, and the requirement for coaxiality among an inner ball, an outer ball and a supporting rod of a workpiece is met.

The invention relates to the technical field of repairing devices, and discloses a diamond grinding wheel repairing device which comprises a bottom plate table, repairing tables are symmetrically arranged above the bottom plate table, a driving sliding column is fixedly installed above the bottom plate table, a lifting support is slidably connected to the inner wall of the driving sliding column, and a control box is fixedly connected to the top of the lifting support. A manipulator is fixedly connected to the lower portion of the control box, a diamond pen is fixedly connected to the lower portion of the manipulator, a clamping and overturning assembly is arranged on the surface of each repairing table, an inclined assembly is arranged at the bottom of each repairing table, and the inclined assemblies can drive one ends of the two repairing tables to incline downwards. The driving device can drive the ends, close to each other, of the two repairing tables to incline downwards to form an inverted V shape, an inclined face is provided for scrap cleaning, scraps generated by polishing and repairing the surfaces of the repairing tables smoothly fall off along the inclined face, and the working environment is kept clean.

The invention discloses a porous metal bonding agent diamond grinding wheel for SiC thinning and a SiC thinning method, the porous metal bonding agent diamond grinding wheel for SiC thinning comprises an outer layer body and a filling cavity formed in the outer layer body, and the filling cavity is filled with microspheres. According to the porous metal bonding agent diamond grinding wheel for SiC thinning, the outer layer body is filled with the microspheres, the microspheres can be heated to expand along with temperature rising in the grinding process, the microspheres extrude and slide mutually, the filling cavities can be dynamically filled with the microspheres so as to buffer and disperse local stress, and contact pressure fluctuation can be reduced easily.

Disclosed in the present application is a numerical control diamond grinding system, comprising a machine tool, wherein a machine vision system, a two-degree-of-freedom adjusting portion, a four-degree-of-freedom adjusting portion and a fixture, which are connected to a processor, are provided above the machine tool. The four-degree-of-freedom adjusting portion comprises a Z-axis assembly, an X-axis assembly, a B-axis assembly and an A-axis assembly, wherein the Z-axis assembly is mounted above the machine tool in such a way that the Z-axis assembly moves left and right; the X-axis assembly is mounted on the Z-axis assembly in such a way that the X-axis assembly moves forward and backward; the B-axis assembly is horizontally and rotationally mounted on the X-axis assembly; the A-axis assembly is vertically and rotationally mounted on one side of a connecting base fixedly arranged above the B-axis assembly; and a diamond to be ground is fixed to the A-axis assembly by means of the fixture. The two-degree-of-freedom adjusting portion comprises a Y-axis assembly and a spindle grinding disc, wherein the Y-axis assembly is mounted at one end of the Z-axis assembly in such a way that the Y-axis assembly moves up and down; and the spindle grinding disc is mounted on the Y-axis assembly. The present device can rapidly grind all facets of round diamonds and fancy-shaped diamonds, significantly improving the diamond grinding efficiency, and the present device can perform real-time monitoring on the grinding condition of the diamonds, thereby effectively enhancing the diamond grinding precision.

An apparatus for synchronous laser-conformal and mechanical dressing of a forming surface of a diamond grinding tool, relating to the field of grinding tool dressing. The apparatus comprises Y-direction, X-direction, and Z-direction motion platforms configured to slide relative to one another. A laser head rotation shaft is vertically slidably arranged on the Z-direction motion platform, and a laser head is mounted on the laser head rotation shaft. A grinding tool rotation shaft is arranged on the Y-direction motion platform, a diamond grinding tool is arranged on the grinding tool rotation shaft, and a mechanical dressing mechanism is arranged on the Y-direction motion platform. The dressing method comprises: mounting the diamond grinding tool on the grinding tool rotation shaft, and adjusting the initial angle and position of the laser head; fine-tuning the relative position between the laser head and a forming surface of the diamond grinding tool and performing laser dressing; after the diamond grinding tool has rotated half a revolution, adjusting the position of a mechanical dressing wheel to begin mechanical dressing; and dressing the two sides of the forming surface of the diamond grinding tool respectively by means of mechanical dressing and laser dressing. The present invention achieves uniform removal and effective compensation for a concave-surface profile by laser, thereby improving the dressing accuracy and dressing efficiency of concave-surface diamond grinding tools.

The invention discloses a modular cup-shaped grinding wheel for curved surface diamond grinding and a using method, and relates to the field of superhard material machining, the grinding wheel comprises a base body, the base body is of a cup-shaped structure, the outer wall of the base body is provided with a plurality of inserting grooves which are evenly distributed at intervals in the circumferential direction, each inserting groove sinks in the normal direction of the outer wall, and the two side faces of each inserting groove can extend downwards and intersect; included angles are formed between the two side surfaces and the bottom surface of the slot; the grinding block is matched with the slot and is mounted in the slot; the pressing plate is of an annular structure, sleeves the outer wall of the base body and is detachably connected with the base body, and the grinding block is pressed by the pressing plate and is detachably connected with the pressing plate; and the grinding material layer is mounted on the lower surface of the grinding block and used for grinding the curved-surface diamond. The brittle fracture process can be regulated and controlled, the grinding capacity of the grinding wheel is improved, the temperature of a grinding area is reduced, the grinding quality is improved, and the method is suitable for manufacturing high-end equipment such as high-power laser windows and spaceflight infrared optical systems.

The utility model discloses a multi-petal elastic grinding wheel for grinding and repairing an outer chamfer of an aluminum oxide porcelain tube, which belongs to the technical field of aluminum oxide porcelain shell processing and comprises a grinding wheel base body. One end of the grinding wheel base body is connected with a chamfering machine power rotating shaft, and the other end is provided with a plurality of grinding wheel strips through fixing pieces. The grinding wheel strips are of a bowl-shaped structure and tend to expand from one side of the grinding wheel base body to the other side of the grinding wheel base body. When the ellipse shape of the end face of a product is irregular, the side edges of the end face make contact with the split elastic grinding wheel strips at the corresponding positions respectively and generate corresponding deformation, grinding and repairing of the outer chamfer of the oval aluminum oxide ceramic tube are achieved, and the multi-petal grinding wheel diamond grinding strips can effectively make contact with the outer edges of the ceramic tube no matter the diameter of the aluminum oxide ceramic tube and the ellipticity of the end face. And the outer chamfer of the end face is ground, so that the uniformity and consistency of the outer chamfer processing of the end face of the elliptical aluminum oxide porcelain tube are fully ensured.

The invention discloses an electroplated diamond napping piece which comprises a diamond grinding layer, a base body and a cloth base and further comprises a middle nickel-plated layer, a microscopic concave-convex structure is formed on the surface of the base body through high-speed sand blasting grinding, direct current is adopted for electroplating, the middle nickel-plated layer is attached to the base body, and the middle nickel-plated layer is arranged on the base body. And then electroplating is conducted through pulse current, the diamond grinding layer is attached to the surface of the middle nickel plating layer, the base body is bonded to the front face of the cloth base, and fluff is planted on the back face of the cloth base. The invention further discloses a preparation method. The bonding strength of the diamond particles and the base material is enhanced through the middle plating layer, and the diamond particles can be uniformly distributed through electroplating by adopting pulse current, so that the durability and hardness of the product are effectively improved. The method is suitable for the technical field of grinding preparation.

The invention discloses easy-to-disperse diamond grinding fluid and a preparation method thereof, and relates to the technical field of grinding fluid. The easy-to-disperse diamond grinding fluid is prepared from the following raw materials in parts by weight: 1 to 20 parts of modified diamond micro powder, 40 to 80 parts of deionized water, 1 to 10 parts of polyethylene glycol 6000, 0.5 to 1.2 parts of sodium carboxymethyl cellulose, 1 to 20 parts of glycerol, 1 to 10 parts of triethanolamine, 0.3 to 0.7 part of sodium polyacrylate, 0.05 to 5 parts of 1, 2-benzisothiazolin-3-ketone and 1 to 10 parts of a modified silane coupling agent. According to the easy-to-disperse diamond grinding fluid, through the synergistic effect of the modified diamond micro powder and the modified silane coupling agent, the dispersity is excellent, and the stability is high; the formula is scientific, polyethylene glycol and other assistants are matched, precise process parameters and graded filtration are combined, the grinding efficiency is high, the surface smoothness of a workpiece is good, the antibacterial property and storage stability are good, and the application scene is wide.

The utility model discloses a kind of grinding devices for artificial diamond processing belongs to grinding technical field, wherein, including box, grinding chamber is arranged in the box, the inner wall of the grinding chamber is fixedly connected with first bearing on one side, rotatingly connected with rotating rod in the first bearing, the one end of the rotating rod is fixedly connected with grinding disc, the one side of the grinding chamber is fixedly connected with first shell, first driving motor is fixedly connected in the first shell, the output shaft of the first driving motor is fixedly connected with the shaft end of rotating rod, by first driving motor work, by rotating rod drive grinding disc rotation, to reach the purpose of artificial diamond grinding, by second driving motor work, by rotating shaft drive screw rod rotation, so that threaded block and artificial diamond can be moved to observation room, convenient to observe and grind, by setting square frame, debris generated in grinding is dropped into collecting box by gravity effect.

The invention discloses a diamond polishing and filling device which comprises a cart, a storage box is mounted on the cart, a vertical U-shaped plate is fixedly connected to one end of the cart and one end of the storage box, a lifting mechanism is arranged on the U-shaped plate, a horizontal displacement mechanism is arranged on the lifting mechanism, an L-shaped base is mounted on the horizontal displacement mechanism, and a first mounting cavity is formed in the top of the base. A second mounting cavity is formed in the bottom of the base, a polishing mechanism capable of deflecting is mounted on the base, and a filling and leveling mechanism is further mounted on the base. The wall surface is firstly polished through the polishing mechanism, and then the paint is sprayed through the filling and leveling mechanism after polishing is finished, so that the paint is sprayed and leveled at the same time, and the working efficiency is greatly improved.

The invention relates to the technical field of super-hard grinding tool manufacturing, in particular to a high-performance diamond grinding wheel and a preparation method thereof. A high-performance diamond grinding wheel comprises a diamond grinding wheel base body, a titanium coating and a WS2-TiSiN coating, the titanium coating and the WS2-TiSiN coating are sequentially arranged on the surface of the diamond grinding wheel base body, and the diamond grinding wheel base body is prepared from, by mass, 65-72 parts of diamond grinding materials, 5-7 parts of modified fibers, 20-24 parts of ceramic binding agents and 3-5 parts of binding agents. The high-performance diamond grinding wheel has the advantages of being compact in organization structure, excellent in heat conductivity and grinding efficiency, high in grinding precision, long in service life, good in mechanical property and good in oxidation resistance. The method is widely applied to titanium alloy grinding machining, and the problems occurring in the titanium alloy grinding process are effectively solved.

The utility model discloses a reaming and grinding integrated cutter, which belongs to the technical field of machining, and specifically comprises a front-end reamer, a rear-end grinding cutter and a cutter handle part which are integrated, the front-end reamer and the rear-end grinding cutter are respectively provided with at least three cutting edges, the front-end reamer is provided with a cutting chamfer, and the rear-end reamer is provided with a cutting groove. And the edge diameter of the cutting edge on the front-end reamer is smaller than that of the rear-end grinding cutter. According to the utility model, the cutter can be reamed and then ground in a hole, and the problems of short service life of a reamer, poor reaming quality and the like caused by poor precision of a pre-hole are solved. The requirement for machine tool precision is lowered, meanwhile, machining efficiency is improved, tool configuration is reduced, and tool cost is lowered; meanwhile, the diamond grinding reamer part improves the hole wall quality, and the machining quality is stable.

The utility model discloses an ultra-precise grinding diamond grinding wheel which comprises a diamond lapping body, a connecting disc is installed on one side of the diamond lapping body, the ultra-precise grinding diamond grinding wheel further comprises a heat dissipation mechanism, the heat dissipation mechanism comprises a heat dissipation disc arranged on the other side of the diamond lapping body, an injection opening is formed in one side of the heat dissipation disc, and a heat dissipation mechanism is installed on the other side of the heat dissipation disc. A liquid outlet nozzle is fixedly connected to the outer side of the heat dissipation disc, an oil coating assembly is installed on the outer ring of the heat dissipation disc, and a containing cavity is formed in the heat dissipation disc; and the auxiliary mechanism is arranged on one side of the connecting disc. The problems that when an existing diamond grinding wheel is used by workers, due to the fact that the diamond grinding wheel rubs with other grinding wheels for a long time, a large amount of heat is generated, the temperature of the diamond grinding wheel is gradually increased, the hardness of the diamond grinding wheel is reduced, abrasion of the diamond grinding wheel is likely to be aggravated, and the service life of the diamond grinding wheel is prolonged are solved. And the service life of the diamond grinding wheel is influenced.

The present invention relates to the technical field of ceramics, and proposes a surface jointing process and equipment for gemstones and purple sand. The surface jointing equipment for gemstones and purple sand includes an angle grinder and a brazed diamond grinding wheel; in the surface jointing process for gemstones and purple sand, after the joint surfaces of the gemstones and purple sand are polished by the equipment, the gemstones are bonded to the purple sand using an adhesive. The present invention also proposes an adhesive, which comprises the following components in parts by weight: 30-50 parts of epoxy resin, 10-15 parts of N-methylolacrylamide, 5-10 parts of phenolic resin, 10-15 parts of quartz powder, 10-20 parts of ethanol, 4-7 parts of curing agent, and 0.1-0.5 part of silane coupling agent. Through the above technical solution, the problems in the prior art that there are a large number of gaps around the inlay and poor bonding effect in the surface inlay of purple sand products are solved.

The application discloses a laser modification polishing integrated method for improving thinning efficiency of silicon carbide wafers. First, the wafer is placed on an ultrasonic vibration platform; then laser slow scanning parameters are set to make the semiconductor wafer efficiently modified under the action of ultrasonic vibration; then an air flow device is started, laser polishing parameters are set, and the laser is polished on the surface of the modified wafer under the action of ultrasonic vibration and high-speed air flow; finally, the wafer after laser polishing is ground and thinned by a wafer thinning machine matched with a fine-grit diamond grinding wheel, so that the final finished product sample is obtained. The method has the advantages of simplicity, high efficiency, strong repeatability and the like, and in combination with an external field assisted laser modification polishing process, the thinning efficiency can be effectively improved and the wafer thinning cost can be reduced.

The utility model relates to the technical field of grinding, in particular to a durable diamond grinding sheet, which is characterized in that a sheet body comprises a damping rubber ring and a plurality of fixing grooves, the annular inner side surface of the sheet body is connected to the annular side surface of the damping rubber ring, the fixing grooves are connected to the annular side surface of the damping rubber ring, and one side of each fixing groove is provided with a limiting frame; the limiting frame comprises a rotating shaft, two first rotating rods and a second rotating rod, the rotating shaft is connected to one end of the limiting frame, and each first rotating rod is connected to one side of the rotating shaft; according to the structure, the installation mode is simple, a user can conveniently and rapidly install the diamond grinding disc, the limiting frame is inserted into the inner side of the fixing groove to be further fixed, the strength of the disc body is improved, and the service life of the diamond grinding disc is prolonged. And the sheet body is not easy to stably fix during high-speed rotation grinding processing, the sheet body is not easy to deform and break, and the durability of the sheet body is improved.

The utility model belongs to the technical field of diamond grinding wheels, and particularly relates to a diamond grinding wheel for grinding a lead screw. The grinding wheel comprises a base body and a grinding layer. Wherein the grinding layer comprises grinding teeth, a first grinding groove and a second grinding groove; the first grinding groove and the second grinding groove are symmetrically formed in the two sides of the grinding teeth and are in smooth connection with the grinding teeth. According to the diamond grinding wheel for grinding the lead screw, the thread groove grinding part and the thread body grinding part are arranged on the grinding wheel at the same time, continuous thread grooves and thread body segments on the lead screw can be ground, and the grinding wheel is matched with translation of the grinding wheel and rotation of the lead screw and the grinding wheel; and grinding machining of all parts on the spiral groove of the lead screw can be completed at the same time.

The utility model discloses diamond tool fixing equipment which comprises a base and a pair of clamp mechanisms. A plurality of connecting lugs are connected to the base, a pair of adjusting grooves are symmetrically formed in the upper top face of the base, and a first lead screw is rotationally connected between the pair of adjusting grooves; the pair of clamp mechanisms are installed in the pair of adjusting grooves correspondingly, each clamp mechanism comprises a first moving block, a supporting rod is fixedly connected to the first moving block, an installation piece is installed on the supporting rod, a clamping mechanism is installed on the installation piece, the first lead screw is a two-way threaded rod, and the directions of threads, located in the pair of adjusting grooves, of the first lead screw are opposite. When the first lead screw rotates, the pair of first moving blocks are subjected to the action of threads. According to the utility model, the adjusting flexibility of the clamp can be improved, so that the clamp can be suitable for fixing diamond grinding rods with different diameters, the fixing requirements of the diamond grinding rods can be met, the purchase investment of the clamp can be reduced, and the production cost of the diamond grinding rods can be reduced.