27 results about "Abrasive machining" patented technology

The invention belongs to a part surface treatment technology, and relates to a multi-runner blade inner cavity and air film hole abrasive particle flow polishing and grinding device and a using method. The device is composed of an upper hydraulic material grinding bin, a lower hydraulic material grinding bin and a blade workbench of abrasive particle flow equipment. The blade workbench can prevent pressure loss caused by abrasive leakage in abrasive flow polishing and grinding and meanwhile avoid flow offset caused by simultaneous entering of the abrasive at the communicating positions of inner cavity flow channels of a multi-flow-channel blade, so that all the flow channels of the blade have a good polishing and grinding effect. The defects that the inner cavity of the power turbine blade interferes with the air film hole wall structure, and the surface strengthening mode is unreachable are overcome, the grinding materials are made to move repeatedly in the inner cavity of the blade through repeated pressurization of the hydraulic cylinder, and the uniform strengthening effect is achieved at the inner cavity of the blade and the inner and outer hole openings of the air film hole. According to the method, only a small amount of grinding materials are consumed and are far less than vibration finishing grinding materials, the machining cost is lower, the dust amount is smaller, and noise is lower. According to the device, the inner cavity of the whole guide vane is strengthened within 20 min through abrasive flow, and the surface strengthening machining efficiency is high.

A file for creating a non-planar contour, in particular with a transverse curvature on a workpiece, including a longitudinal axis, at least one file element with an abrasive machining surface and a depth-stop element with a non-abrasive sliding surface, wherein the at least one file element and the depth-stop element are arranged next to one another in a plane orientated perpendicular to the longitudinal axis.

The invention discloses a natural vibration pulse abrasive jet assisted TBM rock breaking device and method, and relates to the technical field of tunnel excavation and tunneling construction mechanical equipment, and the device comprises a multi-mode natural vibration pulse abrasive jet assisted TBM rock breaking cutterhead, an abrasive jet generation system, an extremely hard rock abrasive machining system and a rebound apparatus. According to the multi-mode natural vibration pulse abrasive jet assisted TBM rock breaking cutterhead, natural vibration pulse abrasive jet is adopted to assist the TBM in rock breaking, efficient rock breaking of the TBM in a high-strength and high-abrasiveness stratum is achieved, abrasion of a cutter is reduced, energy consumption of a machine is reduced, the consistency of the overall rock breaking efficiency of the TBM cutterhead can be guaranteed, and the service life of the TBM cutterhead is prolonged. The problems of high local rock breaking efficiency and low edge rock breaking efficiency of a cutterhead are avoided, an extremely-hard rock abrasive machining system is designed in the TBM, extremely-hard rock residues can be recycled and machined into extremely-hard rock abrasives for jet rock breaking, use of industrial abrasives is reduced, and therefore the engineering tunneling cost is reduced.

The invention relates to a method for judging the processing performance of a fluid abrasive material for abrasive flow processing, which is characterized by comprising the following steps of: 1, uniformly stirring the fluid abrasive material to ensure that hard abrasive particles are uniformly distributed in the fluid abrasive particles; 2, testing the viscosity of the fluid abrasive material to obtain a fluid abrasive particle viscosity curve; step 3, fitting the measured viscosity curve by using a judgment equation; step 4, obtaining fitted equation parameters; 5, the obtained equation parameters A0, c, B and A infinity are multiplied by passivation coefficients respectively, so that four performance parameters are obtained, and the four performance parameters are sequentially compared; and step 6, obtaining processability evaluation of the fluid abrasive based on a comparison result of the performance parameters. According to the method, a scientific decision basis is provided for selection of the fluid abrasives in actual production and processing of the abrasive flow, and the risk that the production cost is increased due to wrong selection of the fluid abrasives is reduced.

The utility model discloses a dust removal mechanism for abrasive machining, which comprises a base, a crushing device is arranged on the base, the crushing device comprises a feeding bin, a crushing bin and a crushing cutter, the feeding bin is arranged above the crushing bin, the crushing cutter is mounted in the crushing bin, a dust removal device is arranged on one side of the crushing bin, and a clamping device is arranged on one side of the crushing bin. The clamping device comprises a fixing sleeve, a release sleeve, a movable groove, a clamping column, a spring, a fixing rod, a guide table, a clamping table, a longitudinal groove, a connecting sleeve, a connecting rod, a threaded sleeve and a flat groove, the clamping column is connected with the movable groove through the spring, the movable groove is formed in the fixing rod, the guide table is arranged in the fixing sleeve, the clamping table is arranged on one side of the guide table, and the longitudinal groove is formed in the side wall of the fixing sleeve. According to the dust removal device, dust can be more effectively collected and treated, the production efficiency and the product quality are improved, and meanwhile the maintenance cost and the environmental pollution are reduced.

The invention discloses an abrasive machining grinding machine which comprises a grinding machine table top and a vertical plate, a support is fixed to the vertical plate, a connecting plate is fixed to an end shaft of a workpiece, and the connecting plate is fixed to the support. The device further comprises a rotating sleeve, the rotating sleeve is fixed to the end shaft, the rotating sleeve is matched with a measuring rod, a fixing block is arranged at the end of the measuring rod, force sensors are arranged on the two opposite outer walls and one top end face of the fixing block, and the force sensors can detect the coaxiality of the workpiece in the rotating process. The device can detect the concentricity of the roller in the whole process, is simple in structure, low in cost and convenient to operate, and can give an alarm.

The utility model discloses an abrasive mixing machine which comprises a rack, a driving assembly and an opening and closing assembly, a mixing tank is rotationally connected to the upper end of the rack, a stirring core is rotationally connected to the middle of the mixing tank, a feeding and discharging hole is formed in the outer arc surface of the mixing tank, and a sealing cover is rotationally connected to the exterior of the mixing tank; the driving assembly is used for driving the mixing tank and the stirring core to rotate; the opening and closing assembly comprises a gear ring, a supporting sleeve and a gear, the gear ring is arranged on the front side face of the mixing tank, the supporting sleeve is rotationally connected to the front end of the sealing cover, the gear is arranged at the rear end of the outer arc face of the supporting sleeve, and the gear is connected with the gear ring in a meshed mode. One material opening can be used for feeding and discharging, opening and closing are controlled through a gear structure, force application is convenient, control is convenient, discharging is rapid, and the using effect is good.

The application belongs to the field of abrasive tool abrasive processing, and particularly relates to a ceramic grinding wheel wax infiltration process. The ceramic grinding wheel wax infiltration process is realized by using a wax infiltration device; the wax infiltration device comprises a wax infiltration pot A, a wax infiltration pot B, and a wax infiltration pipeline capable of connecting the wax infiltration pot A and the wax infiltration pot B. The process is used to infiltrate a wax liquid with good fluidity into the pores of the grinding wheel by vacuumizing, and in the high-speed grinding process of the prepared grinding wheel, a large amount of grinding heat is continuously generated, and after the pores of the grinding wheel are filled with the wax, the grinding heat caused by the grinding simultaneously acts on the workpiece and the wax, a large amount of grinding heat is taken away by the melting and gasification of the wax, and the workpiece is prevented from being burnt; meanwhile, the melted wax liquid acts on the grinding area, so that an adsorption film is formed between the grinding wheel and the workpiece, and the adsorption film plays a lubricating and rust-proof role and improves the grinding quality of the workpiece. The wax infiltration process is easy to popularize and apply in the abrasive tool industry and the processing industry.

The utility model discloses a novel cutting machine for grinding tool and abrasive material machining. The novel cutting machine comprises a main body box. A grinding tool abrasive material is placed on a clamping table to be fixed, then a cutting assembly is used for adjusting the grinding tool abrasive material to a proper angle to prepare cutting, a movable plate slides to move in a limiting groove through a limiting rod, it is guaranteed that a water outlet of a one-way spray head is aligned with the cutting position, and then a water storage tank and the one-way spray head communicate with each other under connection of a flexible pipe; meanwhile, an atomizing nozzle is started to form a water curtain at one end of the cutting assembly, so that chippings are prevented from flying around, when the cutting assembly cuts, a one-way nozzle cools the cutting part of the cutting assembly, meanwhile, cut waste can be flushed to a first bevel groove and a drainage groove, and the waste enters a second bevel groove through the first bevel groove; when the small waste passes through the second bevel groove, the situation that the small waste is attached to the surface of the second bevel groove and cannot enter the connecting groove possibly exists, and at the moment, a servo motor is started to drive a threaded rod to rotate.

The application discloses a kind of J1200 silicon carbide abrasive's grinding shaping method, belong to superhard abrasive processing field.The method includes: after carbonization silicon carbide powder is mixed with water and is made pulp;0.375% to 0.5% polyvinylpyrrolidone of silicon carbide powder mass is added;With silicon carbide grinding ball is stirred together, until silicon carbide particle D50 particle size reaches 8 μm-15 μm and average circularity is less than 0.9.The application is by adding specific proportion polyvinylpyrrolidone, promotes particle " breakage - agglomeration " dynamic balance in grinding, effectively reduces particle circularity, reduces superfine powder generation, improves qualified abrasive yield.The method process is simple, processing capacity is big, safe and controllable, and the obtained abrasive satisfies the requirement of low scratch of precision grinding such as photovoltaic substrate.

A profiled abrasive grain flow clamp for inner hole finishing processing of a tee valve is characterized by comprising a large upper cover, a support ring, a bottom large cover plate, a bottom small cover plate, a large end core mold, a small end core mold, a bottom core mold, an L-shaped column and a side plate. By placing the core mold in the valve flow channel, an abrasive flow channel following the inner wall surface of the valve body is formed, so that the abrasive flowing through the inner wall surface of the valve body has a faster flow rate and a larger pressure, thereby improving the material removal rate. By installing the core mold with a profiled structure, the uniformity of the abrasive processing of the inner wall surface of the valve body can be improved, thereby obtaining better inner wall surface quality. The abrasive is repeatedly circulated in the valve body, thereby removing casting defects, increasing the surface finish and also obtaining a relatively low valve body inner wall surface roughness. The present application effectively improves the processing efficiency and precision of the abrasive grain flow on the valve body inner cavity, and provides a new method for valve finishing.

The utility model discloses diamond micro-powder surface modification treatment equipment, and relates to the technical field of diamond abrasive machining. The device comprises a reaction shell, a sealing cover and a movable pipe, the top end of the reaction shell is provided with the sealing cover, the center of the top end of the sealing cover is fixedly provided with a driving motor, the output end of the driving motor is fixedly provided with a driving shaft, the driving shaft is inserted into the top cover in a penetrating manner, the bottom end of the driving shaft is fixedly provided with a rotating shell, and the lower part of the peripheral surface of the reaction shell is fixedly communicated with the movable pipe; the movable pipe is arranged in an L shape, and a magnetic attraction switch is fixed to the peripheral face, close to the bent position, of the movable pipe. Through the arrangement of the reaction shell, the sealing cover and the movable pipe, the problems that in diamond micro-powder surface modification treatment, acid pickling and spin-drying need to be matched with multiple devices, the working efficiency is low, whether the content of an acid pickling composite acid solution in a container needs to be added or not can only be judged manually, and the use convenience is not good enough are solved.

The utility model discloses a linear sieve for abrasive machining, which comprises a shell, a cover plate is arranged on the upper end face of the shell, a feed port is arranged on one side of the upper end face of the cover plate, fixing frames are arranged on four corners of the outer wall of the cover plate, rotating blocks are arranged in the fixing frames in a rotating mode, and the rotating blocks are arranged on the outer wall of the cover plate. A threaded column is fixedly arranged on the lower end face of the rotating block, connecting blocks are correspondingly arranged on the outer wall of the shell, avoiding holes are formed in the connecting blocks, the threaded columns are located in the avoiding holes, connecting nuts are arranged on the threaded columns, and a sieve plate is arranged on the lower end face of the shell, so that a user can conveniently and rapidly disassemble the sieve plate by disassembling the connecting nuts. And the rotating block is rotated by rotating the rotating block, so that the threaded column is separated from the avoiding hole, and at the moment, the shell and the cover plate can be detached, so that the interior of the shell is convenient to clean.

The application discloses a kind of abrasive flow lapping special fluid abrasive machining performance detection device and method, device includes fixture and sample;Clamp is placed on machine tool workbench, fixture clamps sample, sample is the cylinder with variable cross-section inner hole, lower abrasive cylinder is fixedly connected to the lower surface of machine tool workbench, fluid abrasive is loaded in lower abrasive cylinder, abrasive cylinder piston is built in lower abrasive cylinder, abrasive cylinder piston is connected with machine tool, machine tool can control abrasive cylinder piston and extrude fluid abrasive in lower abrasive cylinder and flow through the inner hole of sample.Based on the device of the application, abrasive flow lapping test based on brand-new fluid abrasive and old fluid abrasive is carried out under the condition of same pressure and fluid abrasive dosage, the time of two tests and the mass change of sample before and after test are obtained, and then fluid abrasive flow performance index and cutting performance index can be calculated.The application has low cost, simple operation and high reliability, can be directly used in production site, and quantitatively evaluates the cutting performance of fluid abrasive.

The invention discloses an optical film cutting device and a using method thereof, and belongs to the field of optical film processing. Comprising a supporting mechanism and a runner pipe, the bottom of the runner pipe is provided with a spraying and mixing mechanism used for spraying high-pressure water flow containing grinding materials, the top of the runner pipe is provided with a driving mechanism, the supporting mechanism comprises a supporting pipe, and the bottom of the supporting pipe is provided with a grinding mechanism used for machining the grinding materials; by controlling the water pressure of external high-pressure water supply equipment, the grinding degree of grinding materials can be flexibly adjusted, during use, when water flow enters the sealing tank, the flow speed of the water flow directly affects the rotating speed of the gear blade disc, and then the working strength of the grinding mechanism is changed, so that the grinding mechanism meets the cutting requirements of optical films of different thicknesses or materials; and after being mixed with high-speed water flow, the grinding material which is properly ground is sprayed out through the nozzle, so that the optical film is efficiently cut, the grinding material does not need to be frequently replaced in the whole process, and the operation convenience and the working efficiency are greatly improved.

The application provides a bearing steel ball grinding method suitable for various materials, which comprises the following steps: step S1, preparing grinding material A; step S2, preparing grinding material B; step S3, using common grinding material to process the steel ball until the remaining allowance is 0.01-0.03 mm to the steel ball finished product size tolerance, then replacing the grinding material A to grind the steel ball until the upper limit of the steel ball finished product size tolerance; step S4, according to the smoothness requirement of the steel ball, using kerosene to remove 70%-80% of the grinding material A in the grinding disc, then adding the grinding material B into the grinding disc for 1-5 times, and simultaneously grinding the steel ball with the remaining grinding material A; and step S5, grinding until the steel ball reaches the tolerance range. The combined use of the grinding material A and the grinding material B is suitable for the grinding of the bearing steel ball with various materials and hardness, has no corrosivity to the steel ball product, can provide a relatively unified operation process for the steel ball grinding process, can improve the grinding precision and appearance quality of the steel ball, and improves the production efficiency.

The utility model discloses a shunt conveying device for abrasive machining, which comprises a box body, a feeding hopper is arranged on the upper end face of the box body in a penetrating manner, a material guide seat is arranged at the bottom end in the box body, discharging grooves are formed in the bottoms of the left end face and the right end face of the box body, and a rotating shaft is rotatably arranged in the box body corresponding to the material guide seat. A material guide plate is detachably arranged on the rotating shaft, the front end of the rotating shaft extends outwards to penetrate through the box body, a servo motor is connected to the front end of the rotating shaft, supporting legs are arranged at the four corners of the lower end face of the box body, collecting boxes are detachably arranged on the two supporting legs on the same side, and universal wheels are arranged at the four corners of the lower end face of the two collecting boxes. Limiting plates are arranged on the multiple supporting legs, limiting rods are arranged on the multiple limiting plates in a penetrating mode, limiting holes are formed in the positions, corresponding to the limiting rods, of the front end faces and the rear end faces of the two collecting boxes, and through the design of the collecting boxes, rapid disassembly and assembly are convenient.

The utility model discloses a ball milling device for processing cubic boron nitride single crystal abrasives, and particularly relates to the technical field of cubic boron nitride single crystal abrasives, the ball milling device comprises a shell, a supporting column is arranged at the bottom of the shell, a processing cylinder is arranged in the shell, and a ventilation and heat dissipation mechanism is arranged in the shell. The placement groove is formed in the surface of the bottom plate of the shell, the heat dissipation fan is installed in the placement groove, heat in the shell is guided upwards through the heat dissipation fan, then the heat enters the heat dissipation opening, and finally the heat is discharged outwards under the action of the drainage fan on one side of the flow guide plate. And the heat dissipation fan is used for assistance, so that heat in the shell can be discharged more quickly, the heat dissipation effect and the cooling efficiency of the device are improved, and the practicability of the device is improved.

The utility model relates to the technical field of bearing machining equipment, in particular to a rotary table bearing grinding inner supporting device which comprises a back plate, a cylinder is arranged on the upper surface of the back plate, a shaft is rotatably connected to the inner side face of the cylinder, a rotating arm is installed at the end of the outer side face of the shaft, and the end of the rotating arm is connected with a bakelite block through a bakelite block fixing rod. A bracket for supporting the rotating arm is arranged on the outer side surface of the back plate; the bakelite block fixing rod is eccentrically installed on the bakelite block, and a notch is formed in the bakelite block. According to the inner supporting device for abrasive machining of the rotary table bearing, the problems existing in supporting outer circle machining can be solved, it is guaranteed that the position of the bearing is accurate in the machining process, machining errors caused by position deviation are reduced, and therefore the size precision and geometric precision of the bearing are improved; the bearing is stressed more uniformly during machining, deformation caused by overlarge local stress is avoided, and the shape precision such as roundness and cylindricity of the bearing can be guaranteed.

The invention discloses steel wire shot cutting equipment for shot blasting abrasive machining, and relates to the technical field of steel wire shot cutting, the steel wire shot cutting equipment comprises a bottom table, a motor and a wire guiding assembly are arranged on the left side of the top surface of the bottom table, the wire guiding assembly is arranged on the top surface of the bottom table, and the two wide frames are fixed to the top surface of the bottom table; the two wide frames are arranged on the bottom table, the sides, close to each other, of the two wide frames are each provided with a sliding groove, the screw groove frame is fixed to the top face of the bottom table and located between the two wide frames, the hopper is fixed to the back face of the screw groove frame, the transverse frame is fixed to the top faces of the two wide frames, and the electric hydraulic rod is fixed to the bottom table. The spring is pulled up in a reciprocating mode, the vibration frequency of the shaft cutter is reduced, and therefore the problems that the shaft cutter is prone to being damaged due to the fact that the shaft cutter is prone to generating strong amplitude, and the lengths of steel shots punched by the shaft cutter are not uniform are avoided.

This utility model pertains to metalworking, specifically to devices for electrochemical abrasive machining of conductive components and electrochemical straightening of conductive tools. The device comprises a current source for electroabrasive machining of the component, a current source for electrochemical straightening of an abrasive conductive tool, a current switching unit equipped with two relays, a control unit connected to the current switching unit, two cathodes, and two end sensors for detecting the extreme positions of a tool capable of reciprocating horizontal movements and vertical feed. The sensors are connected to the control unit.Two cathodes are configured to alternately connect to the negative pole of a current source for electrochemical dressing of an abrasive conductive tool and engage the tool upon completion of contact with the workpiece, and perform vertical movement synchronously with the vertical feed of the tool. The technical result consists in increasing the efficiency of the electrochemical machining process of a metal product by removing a layer of material from the workpiece as the tool moves in both directions and periodically electrochemically dressing the tool after each pass along the workpiece. 1 fig.

1. Name of the Design Product: Rotary Grinding Wheel. 2. Use of the Design Product: For grinding, abrasive machining, etc. 3. Design Key Points of the Design Product: The combination of shape and pattern. 4. Picture or Photograph that Best Indicates the Design Key Points: Perspective View.

The present invention belongs to the technical field of magnetic abrasive machining, and specifically discloses an Fe-based SiC magnetic abrasive and a preparation method thereof; in the present invention, SiC superhard abrasive phases are prepared by in-situ reaction of Si powder and C powder, and the binding ability between the prepared abrasive phases and ferromagnetic phases is enhanced. The Fe-Si alloy layer formed by the reaction between Fe-based and SiC endows the prepared Fe-based SiC magnetic abrasive with both high magnetic permeability and high hardness; the spherical abrasive particles ensure that each part of the workpiece can be evenly stressed during the grinding process, and no deep scratches will appear; the prepared magnetic abrasive has good self-sharpening property and strong grinding force, can solve the problems of low service life and complex processing technology of traditional magnetic abrasives, and can perform precision grinding and polishing on workpieces.

The utility model discloses a thinned grinding wheel structure with a reusable base body, which comprises a split type base body, a split type replaceable abrasive consolidation ring and an abrasive block, the split type replaceable abrasive consolidation ring is detachably and fixedly mounted on one axial end face of the split type base body, and the abrasive block is fixedly mounted on the other axial end face of the split type base body. A plurality of abrasive blocks used for abrasive machining are evenly and fixedly installed on one axial end face of the split type replaceable abrasive consolidation ring at intervals, and an inwards-concave chip containing groove is formed in at least one side wall, extending in the axial direction of the grinding wheel, of each abrasive block. Repeated recycling of the grinding wheel base body after the grinding wheel is scrapped is achieved, the material waste rate is reduced, and the grinding machining cost is saved.

The invention discloses barrel type part finishing equipment and a chemical milling sharp edge removing method, the barrel type part finishing equipment is provided with a material box, a rotating mechanism and a jacking sliding block assembly, the material box is filled with mixed grinding materials in a specific proportion, and the machining steps are as follows: during production preparation, the grinding materials and grinding liquid are added in the material box according to the proportion to be uniformly mixed; when parts are machined, feeding and clamping are conducted through the feeding and discharging mechanism, after equipment is started, the height of the jacking sliding block assembly is adjusted according to the diameter of a workpiece, the center shaft drives the workpiece to rotate, the material box swings synchronously, discharging is conducted after operation is finished, sharp edges can be machined into fillets of 0.1-0.4 mm after machining, and the situation that the parts lose efficacy due to stress concentration of the sharp edges in subsequent use of an engine is effectively avoided. And the quality requirement is met, and the reliability and safety of cylinder parts such as aero-engine cases are improved.

A surface polishing and grinding device for machining a turbine disc of a turbojet engine relates to the technical field of metal surface polishing and grinding machining and comprises a polishing and grinding platform, and a feeding conveying assembly, a magnetic grinding assembly, a mechanical flat grinding assembly, a surface drying assembly, an electrolytic polishing assembly and a station conversion assembly are sequentially arranged on the polishing and grinding platform. The magnetic grinding assembly comprises an upper grinding box with an opening in the lower end and a lower grinding box with an opening in the upper end, and the outer ring size of the upper grinding box is matched with the inner ring size of the lower grinding box; a lower magnetic plate is fixedly installed on the inner bottom face of the lower grinding box, an upper magnetic plate is fixedly installed on the inner top face of the upper grinding box, and magnetic grinding materials are stacked on the upper surface of the lower magnetic plate. The problems that in the machining process of turbine disc polishing and grinding in the prior art, the automation degree is low, multi-process collaboration is poor, polishing and grinding of a complex structure are difficult, and surface treatment is uneven are solved.

Milling blank comprising polymeric prosthesis material based on the reaction of at least one (A) liquid monomer component and one (B) powdered component, wherein the (A) liquid monomer component comprises a mixture of monomers comprising at least one urethane(meth)acrylate, preferably one urethane dimethacrylate, and a multi-crosslinker comprising tris(2-hydroxyethyl) isocyanurate triacrylate, and Core-shell particles, wherein the core-shell particles are primary particles with a mean particle size of less than or equal to d 50 ≤ 500 nm to 10 nm characterized in that the milling blank comprises core-shell particles modified by an elastic phase to 0.001 to 20 wt.% with respect to the overall composition, and the prosthesis material is in the form of a three-dimensional molded body suitable for subtractive machining, and wherein the molded body has a fracture toughness of ≥ 1.9 MPa · m 1 / 2and a total fracture energy of ≥ 900 J / m 2 exhibits.