60 results about "Superfinishing" patented technology

The invention relates to the technical field of milling, grinding and polishing machine tools, and discloses a free-form surface milling, grinding and polishing machine tool which comprises a Z-axis sliding table, a first tool shaft and a second tool shaft are fixed to the Z-axis sliding table, a Z-axis feeding device is fixedly connected to the bottom of the Z-axis sliding table, and a guide rail is fixedly connected to the surface of the Z-axis sliding table. The grinding mechanism is arranged, when a workpiece quick-change chuck rotates, a workpiece can be driven to rotate, the workpiece is quickly milled, ground and polished, a workpiece shaft is fixed to a cross-shaped sliding table linearly moving in the X direction and the Y direction, switching of the operation modes of a main shaft and a positioning shaft can be achieved through a numerical control instruction, and machining of a rotary symmetric curved surface and a free-form curved surface is completed; when rough machining or semi-finish machining needs to be conducted on the workpiece, the electric telescopic rod is started to pull the supporting table to move on the surface of the guide rail in the direction of the electric telescopic rod, the tool on the first shaft is selected to be used, and when finish machining or superfinish machining needs to be conducted on the workpiece, the workpiece moves to the machining position of the second tool shaft.

The invention provides a bearing peach-shaped channel superfinishing grinding device which comprises a base, and a workpiece rotating supporting mechanism and an oilstone swinging mechanism are arranged on the base. The workpiece rotating and supporting mechanism comprises a left tip and a right tip, the left tip is provided with a drive plate and a heart-shaped chuck, and the position of the right tip in the axial direction is adjustable. A mounting seat of the oilstone swinging mechanism can be fed in the left-right direction and the front-back direction and comprises an oilstone swinging rotating shaft capable of rotating in a reciprocating mode in the axial direction, an oilstone frame is arranged at the output end of the oilstone swinging rotating shaft, an oilstone box is arranged at the outer end of the oilstone frame, oilstone is assembled in the oilstone box in the vertical direction, and the axial extension line of the oilstone swinging rotating shaft and the oilstone intersect at a point O; and an oilstone pressing rod and a hydraulic valve are arranged on the oilstone frame. The device can finish superfinishing grinding of two curved surfaces of a peach-shaped channel under the condition that one device is used for one-time clamping, meanwhile, the device can be suitable for superfinishing of a shaft workpiece with a plurality of channels, and the adverse effect of multiple times of feeding on the superfinishing grinding precision can be effectively reduced.

The invention relates to the technical field of superfinishing, in particular to a tool servo turning method assisted by a translation rotating platform, a medium and equipment. The five-axis lathe and the translation rotating platform are controlled to cut according to the paths of the independent areas to be machined by obtaining the cutting paths of the curved surface microlens array substrate to be machined and the cutting paths of the microlens units respectively. According to the method, the target structure is divided into the substrate area and the independent areas corresponding to the multiple micro-lens units, the independent spiral cutter cutting path is generated, the cutter path continuity is effectively improved, the method adapts to the dynamic characteristics of the machine tool servo shaft, efficient cutting parameters are conveniently selected, and the servo shaft tracking precision and the machining quality are improved. A regional step-by-step machining strategy is adopted, and each micro lens unit adopts an independent spiral cutter cutting path, so that the problems of inconsistent cutter paths and cutting state fluctuation caused by position difference in traditional single-path machining are solved, each micro lens unit is ensured to be machined under the same cutting condition, and the consistency of the machined surface of the micro lens array is remarkably improved.

The utility model provides a cutting blade. The cutting insert includes a cutting portion. The cutting part comprises a cutting edge and a chip breaker groove. The cutting edge comprises a fillet cutting edge and a side cutting edge, and the chip breaker groove is sequentially provided with a front cutter face, a transition face and a chip blocking face. The chip blocking face comprises a convex curved face and an inclined face. The upper surface is provided with a first reference surface. An intersection curve is formed at the intersection of the convex curved surface and the transition surface, and the projection of the intersection curve on the first reference surface is a first arc curve. When the first reference surface is viewed in the front, the side cutting edge is projected onto the first reference surface, and the distance between the first arc curve of the cutting part and the side cutting edge is gradually reduced in the direction from front to back, and then is gradually increased in the direction from front to back. In the superfinishing process, the cuttings of the cutting insert can be easily curled and discharged, and the cuttings processing capability of the cutting insert is improved.

This application relates to a machining process for the inner ring of a non-magnetic steel composite bearing, comprising the following steps: turning a blank into the shape of a non-magnetic steel composite bearing inner ring, and machining base surface auxiliary steps and non-base surface auxiliary steps at both ends of the inner ring, followed by heat treatment; performing rough grinding on the two end faces, outer diameter, and inner diameter of the heat-treated inner ring; performing rough grinding on the raceway, raceway, base surface sidewall, and non-base surface sidewall of the inner ring; performing fine grinding on the two end faces, outer diameter, and inner diameter of the inner ring; performing fine grinding on the raceway, raceway, base surface sidewall, and non-base surface sidewall of the inner ring; after fine grinding, grinding away the base surface auxiliary steps and non-base surface auxiliary steps; and performing ultra-precision machining on the raceway and raceway of the inner ring. This process can improve the machining efficiency of the inner ring and reduce the production cycle.

The utility model discloses a high accuracy frock suitable for slanting roof exchange processing is provided with a plurality of support feet on the bottom surface of its bottom plate, and the top surface of the bottom plate is detachably connected with a locking positioning device, the top of the locking positioning device is provided with a plug-in hole, the plug-in hole is used for receiving a slanting roof, and a plurality of inserts are arranged on the side surface of the locking positioning device to fix the slanting roof inside the locking positioning device. After the bottom plate and the locking positioning device are fixed, the slanting roof is inserted into the locking positioning device through the plug-in hole, then the insert is inserted into the locking positioning device from the side surface of the locking positioning device, and the slanting roof is fixed in the locking positioning device, so that the mold processing is facilitated. When it is necessary to replace the slanting roof, the insert can be disassembled to quickly replace the slanting roof, and the slanting roof to be processed is reloaded, so that the preparation time before superfinishing is reduced, the slanting roof is quickly replaced, the efficiency is improved, and the technical problem that the existing slanting roof superfinishing frock is fixed in a downward pressing mode, the processing coordinates need to be recalibrated after the completion of each work, and the mold needs to be reloaded is solved.

The bearing roller superfinishing device comprises a base, a swing feeding mechanism and a workpiece driving mechanism, the swing output end of the swing feeding mechanism is connected with an oilstone frame, an oilstone groove is formed in the oilstone frame, and elastic filler is evenly laid on one side face of the oilstone groove and the bottom face of the oilstone groove; an oilstone set is embedded in the oilstone groove and comprises at least two oilstone blocks arranged in the laying direction of the elastic filler on the side face of the oilstone groove. During superfinishing, the oilstone frame is moved to drive the oilstone set to abut against the peripheral face of the roller and move in a reciprocating mode along the generatrix, the area of each oilstone block branch pipe is only the swing distance, each oilstone block can ascend and descend to adapt to the shape of the generatrix, and the effect that the original generatrix shape of oilstone is prevented from being damaged in the superfinishing process is achieved.

This invention relates to an outer ring plastic-coated insulated bearing and its processing method, belonging to the field of insulated bearings. This technical solution adopts an integrated injection-molded plastic-coated structure. Compared with traditional plasma spraying coatings, the insulation layer has a larger thickness, higher density, and is more resistant to breakdown and wear, unaffected by assembly wear, and its insulation performance does not degrade over long-term use, fundamentally solving the problem of bearing electro-corrosion. Simultaneously, the mechanical interlocking structure formed by the dustproof groove, annular groove, and plastic-coated insulation layer of the metal outer ring significantly improves the bonding strength of the plastic-coated layer, avoiding the risks of slippage, axial movement, and peeling off. It can adapt to complex operating conditions such as high-frequency forward and reverse rotation and high-speed rotation of motors. Furthermore, this technical solution adopts a process route of segmented processing of the groove before and after plastic coating. Rough grinding before plastic coating allows for deformation allowance to accommodate injection molding thermal deformation, while fine grinding and ultra-precision machining after plastic coating correct all errors, solving the industry pain points of poor groove precision, high vibration, and high noise in traditional processes.

The invention belongs to the technical field of bearing precision machining, and relates to a spiral groove supporting rolling rod for a bearing ring superfinishing machine and application equipment of the spiral groove supporting rolling rod. The supporting rolling rod comprises a cylindrical main body, and at least one continuous concave spiral groove is formed in the working surface of the outer circle of the cylindrical main body. The spiral groove is used for reducing the contact area between the supporting rolling rod and the bearing ring and storing and conveying ultra-fine grinding liquid in the ultra-fine grinding process so as to form a continuous and stable lubricating oil film. Preferably, the spiral groove is of a multi-head spiral structure, the cross section of the spiral groove is of an arc-shaped, trapezoid or special-shaped structure, and abrasive dust can be discharged through the spiral pumping effect in the rotating process of the rolling rod. The supporting rolling rod can be made of high-carbon-chromium bearing steel, hard alloy or austenitic stainless steel, and the wear resistance is improved through surface strengthening treatment. According to the invention, friction and wear can be effectively reduced, and the lubricating stability and the chip removal capability are improved, so that the surface quality and the consistency of superfinishing machining of the bearing ring are improved.

This invention provides an ultra-precision machining device and method for the circumferential surface of rollers, relating to the field of ultra-precision machining. Addressing the problem of low machining efficiency caused by poor coordination between loading / unloading and the ultra-precision mechanism during current ultra-precision machining of rollers, this invention employs a stepped pallet for roller transfer, connecting an external loading mechanism and the ultra-precision position. After the roller's position is adjusted on the second and first platforms, the roller to be processed is accurately loaded to the ultra-precision position, and simultaneously the processed roller is lifted and moved from the ultra-precision position to the receiving plate, improving the loading speed and accuracy of the rollers, thereby increasing the efficiency of ultra-precision machining.

The invention discloses an aluminum alloy automobile covering part outer plate cold stamping forming surface quality improving method, and relates to the technical field of automobile stamping dies. The method sequentially comprises the seven steps of parting compensation treatment, dynamic flow control treatment, mold difference hardness treatment, molded surface superfinishing, difference strong pressure shaping, structured lubrication dust retention treatment and forming process reconstruction. Through a full-process integrated forming control scheme, surface product defects such as scratches, slip lines, viscosity and concave-convex points in the cold stamping process of the aluminum alloy outer plate can be effectively eliminated, the large-angle vertical face and fillet resilience is controlled to be within 0.5 mm, the die debugging difficulty and the bench worker workload are greatly reduced, the die manufacturing period is shortened, and the production efficiency is improved. And the mass production yield and forming stability of parts are improved, and the large-scale mass production requirements of new energy automobiles are met.

The application belongs to the technical field of precision machining of mechanical part surface, and aims to solve the problems of the existing process which is only applicable to small and medium batch rolling body machining, low polishing and grinding efficiency and small machining surface. A vibration superfinishing rolling and polishing device and method for bearing rolling body limiting machining are provided. The device comprises a vibration platform, a fixing assembly and a plurality of containers. The inner wall of the container comprises a first left wall, an upper wall, a second left wall, a lower wall and a right wall which are connected in sequence. The first left wall, the second left wall and the right wall are arranged in parallel. The included angle between the upper wall and the second left wall is greater than the included angle between the lower wall and the right wall. The container is provided with a rolling body, a medium and a limiting assembly comprising six limiting pieces. The distance between adjacent two limiting pieces is less than the diameter of the rolling body and greater than the diameter of the medium. The medium is in contact with the rolling body. The application can improve the roughness grade of the surface of the rolling body and realize omnibearing and mass superfinishing of the surface of the rolling body.

Summary of the Invention Super finisher for the threaded part of a ball screw The present invention relates to an apparatus (100) for superfinishing the threads of a ball screw. The apparatus comprises at least one holder (42, 52), a first interchangeable finishing tool (10) comprising a threaded portion in a working inner recess (10A), a second interchangeable finishing tool (15) comprising a working inner recess (15A) having a threaded portion, a polishing belt (20) reinforced with a slit film configured to pass continuously through the inner recesses (10A, 15A) and form an interface between the finishing tools (10, 15) and the threads (40A) of the ball screw (40), and at least one drive component (44a, 44b) configured to change the angle of the holder to enable linear movement of the finishing tools (10, 15) relative to the ball screw (40). An advantage is that during machining, the apparatus (100) supports the weight of the ball screw, thereby preventing protrusion of the ball screw.

A device for batch superfinishing of bearing inner ring raceway, comprising a rack with two rollers, a plurality of bearing inner rings are divided into a plurality of groups of clamps by a plurality of bearing positioning assemblies, a plurality of oilstone clamping shafts are arranged on the rack, and a plurality of oilstones are respectively connected to the oilstone clamping shafts, so that the plurality of oilstones can process the raceways of the plurality of groups of bearing inner rings when the two rollers drive all the bearing inner rings to rotate synchronously; the bearing positioning assembly comprises a spiral spring, two side plates, two retaining rings and two clamping plates, the plurality of bearing inner rings in the same group are sleeved on the spiral spring, the two side plates and the two retaining rings are sleeved on the spiral spring, the retaining ring is pressed on the end face of the bearing inner ring, and the two clamping plates are penetrated in the spiral structure of the spiral spring, so that the two clamping plates are pressed on the two side plates by the elastic force of the spiral spring, thereby clamping the plurality of bearing inner rings in the same group in the axial direction; one end of the spiral spring in the axial direction is provided with a pull hook for manually stretching the spiral spring.

The application provides an independent drive type high-frequency reciprocating motion module superfinishing grinding wheel, relates to the technical field of grinding machines, and the grinding assembly comprises a grinding wheel mounting support, the grinding wheel mounting support is transversely rotatably installed on the top of a sliding mounting frame, a grinding wheel supporting rotating rod is transversely rotatably installed at the front end of the grinding wheel mounting support, a grinding wheel supporting wheel is fixedly installed at the center of the grinding wheel supporting rotating rod, a grinding wheel is fixedly installed on the outer ring of the grinding wheel supporting wheel, and lateral grinding wheels are fixedly installed on the two sides of the grinding wheel. The driving gear ring and the driving turntable are used for magnetically controlling the grinding wheel, so that the abrasion of transmission parts in the transmission process can be avoided. The electromagnet on the emergency stop sliding rod and the strong magnet in the cylindrical groove at the front end of the emergency stop sliding rod are magnetically matched, the grinding wheel can be quickly controlled to stop, the movement of the grinding wheel is quickly stopped, and the damage of excessive impact force to equipment parts is avoided.

The invention discloses a grinding process for a silent ball bearing of a micro household appliance, which comprises a bearing inner ring and bearing outer ring grinding process, and the bearing inner ring grinding process sequentially comprises the steps of end face grinding, flange grinding, flange superfinishing, inner diameter grinding, liquid polishing, channel grinding, two times of channel superfinishing and cleaning oil soaking. Demagnetization cleaning is carried out between the working procedures; according to the bearing outer ring grinding machining technology, machining is carried out according to the sequence of end face grinding, outer diameter grinding, outer diameter superfinishing, channel grinding, two times of channel superfinishing, liquid polishing machining and cleaning oil soaking in sequence, and demagnetization cleaning is carried out between the core procedures. The problem that the ultra-silence requirement of a household appliance bearing is difficult to meet due to the fact that the machining precision of a bearing ring is insufficient and the cleanliness of the whole production process is not controlled in place in a traditional micro household appliance ball bearing grinding technology is solved.

The invention belongs to the technical field of mechanical part surface precision machining, and aims to solve the problems that an existing process is only suitable for small and medium batch rolling body machining, the polishing and grinding efficiency is low, and the machining surface is small. The device comprises a vibration platform, a fixing assembly and a plurality of containers, the inner walls of the containers comprise a first left container wall, an upper container wall, a second left container wall, a lower container wall and a right container wall which are sequentially connected, and the first left container wall, the second left container wall and the right container wall are arranged in parallel; the included angle between the upper device wall and the second left device wall is larger than the included angle between the lower device wall and the right device wall, a rolling body, a medium and a limiting assembly comprising six limiting parts are arranged in the container, the distance between every two adjacent limiting parts is smaller than the diameter of the rolling body and larger than the diameter of the medium, and the medium makes contact with the rolling body. According to the invention, the roughness grade of the surface of the rolling body can be improved, and all-directional and large-batch superfinishing of the surface of the rolling body is realized.

The invention discloses a method for manufacturing an aluminum alloy nickel-plated hand plate of an HUD reflector, which comprises the following steps of: simulating the total deformation trend of a hand plate to be processed in a nickel plating process through simulation software, analyzing material characteristics by combining with a digital-analog drawing file, and selecting a raw material matched with an aluminum alloy base material, so that surface deformation caused by internal stress of the material or difference of thermal expansion coefficients is effectively avoided. In the processing link, a processing program based on simulation data is adopted to carry out layered multiple processing on the raw materials, the accumulation of processing thermal stress is reduced by controlling cutting parameters, and meanwhile, the formation of rainbow patterns is inhibited from the source by combining with nickel plating process optimization. And finally, superfinishing and manual polishing are carried out on the nickel-plated hand plate through three-coordinate detection and superfinishing amount calculation, so that the rainbow pattern phenomenon caused by uneven surface microstructure or local stress concentration is thoroughly eliminated, the optical performance of the HUD reflector hand plate is further improved, meanwhile, the rainbow pattern defect rate is reduced and eliminated, and the quality of the HUD reflector hand plate is improved. The technical problem that an existing aluminum alloy hand plate finished product is heavy in rainbow pattern is solved.

The invention relates to the field of titanium alloy grinding, in particular to a titanium alloy anti-radar stealth technology superfinishing grinding method which comprises the following steps that a titanium alloy workpiece is placed on a feeding mechanism, the titanium alloy workpiece is conveyed to a grinding base installed on a workbench along with the feeding mechanism, and then a clamping mechanism is started to fix the titanium alloy workpiece; dry rough grinding is carried out, a precise pneumatic grinding instrument is used for attaching a rough grinding sheet, a machine switch is turned on, and rough grinding is carried out till no machining knife lines exist on the surface; semi-fine grinding: attaching a fine grinding sheet by using a precision pneumatic vibration instrument, turning on a machine switch, and performing fine grinding until the observation surface of the magnifying lens has no coarse grains; coarse wet grinding is conducted, specifically, a precise pneumatic vibration instrument is used for being attached with a fine grinding sheet, and special wet grinding liquid is prepared till the wet grinding surface is slightly darkened; fine polishing is conducted, a precise pneumatic polishing instrument is used for being attached with a plant fiber grinding sheet, special polishing paraffin is configured, and the polished surface gradually becomes bright from dark. The problem that the grinding quality of the surface of the titanium alloy workpiece is poor is solved.

The invention provides an oilstone for superfinishing of a bearing and a preparation method of the oilstone. The preparation method comprises the following steps: stirring and mixing of raw materials, cold press molding, heat treatment sintering, low-temperature wax filling and dimensional precision machining. The raw materials comprise white corundum, a ceramic bond, a pore forming agent and a temporary binder. The oilstone for superfinishing of the bearing is used for superfinishing of the bearing, a machined bearing workpiece can obtain high surface quality precision and long service life, meanwhile, the service life of the oilstone can be prolonged, cost is reduced, and efficiency is improved.

The utility model discloses a bearing roller superfinishing machine, and particularly relates to the technical field of bearing roller processing, which comprises a rotary table for driving a bearing roller to rotate, limiting teeth which are arranged in a sliding manner along the vertical direction, and an abrasive belt which is arranged on the limiting teeth and is used for polishing the bearing roller; the movable wheel is used for limiting the abrasive belt and is provided with a movable spray head; and when the abrasive belt is in contact with the bearing roller, the movable spray head deflects and always points to the abrasive belt. According to the bearing roller superfinishing machine, self-adaptive adjustment can be conducted through the two limiting teeth according to bearing rollers of different specifications, the abrasive belt is driven to be tightly attached to the side face of the bearing roller, the movable spray head is driven to deflect along with the abrasive belt, grinding fluid is sprayed to the abrasive belt, and the contact position of the abrasive belt and the bearing roller is cooled; spraying on non-contact parts can be reduced, and the efficiency of cooling and liquid supplementing is improved.

The invention provides a double oilstone swing head for a bearing outer ring channel superfinishing process, which comprises a base, two oilstone frames, an adjusting assembly and a positioning assembly are arranged on the base, the adjusting assembly comprises a rotating seat, a driving part and a transmission part, the two oilstone frames are circumferentially arranged on one side of the rotating seat at intervals, and the two oilstone frames are arranged on the other side of the rotating seat at intervals. One end of the transmission part is connected with the driving part, the other end of the transmission part is in transmission connection with the rotating seat, the transmission part can drive the rotating seat to rotate to switch the positions of the two oilstone frames under the action of the driving part, and the positioning assembly is used for being in positioning fit with the switched oilstone frames. Aiming at the defects in the prior art, the invention provides the double-oilstone swinging head for the bearing outer ring channel superfinishing process, and the double-oilstone swinging head can improve the efficiency and effectively reduce the cost.

The application relates to a large-curvature optical surface superfinishing tool path auxiliary curved surface construction method, which comprises the following steps: step S1, preliminary expansion: using the "expansion" instruction of UG software, uniformly expanding an original optical surface along the periphery to form an auxiliary surface consistent with the curvature of the original optical surface; step S2, lateral stretching: using the "stretching" instruction of UG software, stretching the expanded auxiliary surface on both sides; and step S3, surface rounding: using the "surface rounding" instruction of UG software, rounding all the connecting parts of the expanded surface and the lateral stretching surface of the auxiliary surface to form an integrated and curvature-continuous auxiliary curved surface. The application can realize "interference active avoidance", and completely solves the tool path disorder and collision problem in the machining of a large-curvature z free curved surface.

The utility model discloses a high accuracy fly cutter processingequipment for multi -faced mirror, through the fixed base stable installation multi -faced mirror, and fix the fixed base bottom on numerical control machine tool B axle workstation. Fix the main shaft on the X axle of numerical control machine tool, utilize the main shaft drive fly cutter plate rotation. Fly cutter plate in the rotation process will its fixed processing tool aim at any one side in multi -faced mirror, and carry out fly cutter processing. And in the fly cutter plate rotation process, utilize numerical control machine tool X axle to move back and forth, make fly cutter plate and the processing surface of multi -faced mirror contact 2, thereby realize the overall processing to the processing surface. When a processing surface is processed, through numerical control machine tool B axle rotation fixed base to the next processing surface and processes, until all processing surfaces are processed, complete the fly cutter processing procedure of multi -faced mirror fast, thereby solve the present multi -faced mirror's superfinishing and adopt X, Z, Y, C four axle linkage scraping processing, and the technical problem of long processing cycle.

The invention relates to a conical bearing ring raceway superfinishing grinding adjusting device and a machining process. The device comprises a rotary supporting mechanism which comprises a C-axis rotating table, and the C-axis rotating table is used for supporting the central axis of a conical bearing ring to be machined to rotate around the C axis; the grinding mechanism comprises an X-axis linear driving assembly, a Z-axis linear driving assembly, a B-axis rotary driving assembly and a grinding assembly; the X-axis linear driving assembly is connected with the Z-axis linear driving assembly, the Z-axis linear driving assembly is connected with the B-axis rotating driving assembly, and the B-axis rotating driving assembly comprises a B-axis rotating table connected with the grinding assembly; the grinding assembly comprises a coarse grinding unit and a fine grinding unit which are installed on the B-axis rotating table, the coarse grinding unit comprises a coarse grinding oilstone and a first driving part, and the fine grinding unit comprises a fine grinding oilstone and a second driving part. The grinding efficiency and grinding quality of the conical bearing ring raceway are improved.

The invention relates to the technical field of bearing ball manufacturing, in particular to a silicon nitride ceramic bearing ball production process which comprises the following steps: pretreating raw materials, mixing silicon nitride powder with a sintering aid, adding absolute ethyl alcohol, and ball-milling into slurry; carrying out spray granulation, and controlling the temperature to obtain granulated particles with specific particle sizes; performing cold isostatic pressing, pressurizing and maintaining pressure to obtain a biscuit; degreasing treatment is conducted, and heating is conducted in the air atmosphere to remove impurities; sintering, heating and preserving heat in a nitrogen atmosphere, and then cooling; roughly grinding, and controlling the roundness by a diamond grinding wheel; fine-mesh grinding wheels are used for improving the precision; ultra-fine grinding is performed, and the finish degree is increased through grinding paste; cleaning and removing residual grinding materials; and detecting, and packaging after qualification. The bearing ball produced by the process is superhard, wear-resistant, high-temperature-resistant and electrically insulated, adapts to special working conditions such as high temperature and high speed, and meets the requirements of multiple fields.

A component (17) of a roller bearing has a middle portion (27) having a circumferential surface with a linear profile extending at least in an axial direction, and an end portion (25) having a circumferential surface with a crown profile. A superfinishing method includes superfinishing the end portion (25) with a first grindstone (31) while rotating the component (17), and superfinishing the middle portion (27) with a second grindstone (33) prepared separately from the first grindstone (31) the while rotating the component (17).

The application belongs to the technical field of superfinishing machines, in particular to a high-speed spindle bearing outer groove end face superfinishing machine, which comprises a supporting part, a turnover protective cover arranged on the top of the supporting part, and an operation screen arranged on the front surface of the turnover protective cover, a bearing arranged in the interior of the supporting part, and clamping parts symmetrically arranged on the upper and lower sides of the supporting part. The device can perform circumferential grinding work on the outer groove end face of the bearing through the grinding tool heads adapted to the two sides, grind the rough surface and impurity particles in the inner part of the bearing outer groove, and make the bearing outer groove end face smoother. However, the metal scraps generated by grinding are easy to remain in the inner part of the bearing, which causes wear problems of the rollers in the inner part of the bearing. Therefore, after grinding is completed, the grinding work is sequentially continued without moving the long connecting plate, the scraps in the inner part of the bearing outer groove are accurately sucked out through the circumferentially rotating adsorption shell attached to the bearing, so as to eliminate the scraps mixed in the rollers and avoid wear problems of the rollers.

The utility model relates to an integrated lead screw bearing inner ring channel superfinishing device, which relates to the technical field of bearing processing, and comprises a left centering seat and a right centering seat which are used for clamping a workpiece, the right centering seat is connected with a supporting shaft through an angular contact ball bearing, and the outer diameter of the angular contact ball bearing is in interference fit with the large inner hole surface of the right centering seat. The end face of the outer ring of the angular contact ball bearing makes close contact with the inner end face of the right centering base so that the workpiece and the right centering base can rotate synchronously. The utility model is favorable for solving the problem that the inner ring of the integrated screw rod bearing cannot be superfinely integrated by adopting a conventional superfinishing machine tool; the apparent quality of the bearing is improved; the workpiece precision is improved; the production efficiency is improved; the centering device is simple in structure and can be popularized for inner groove superfinishing of other similar bearings.

The utility model discloses a tapered roller bearing inner ring flange superfinishing device, which belongs to the technical field of bearing production and processing equipment, and comprises a support, a cylinder and an oilstone frame, the support comprises a fixed plate and an L-shaped support plate, the fixed plate is used for connecting a lower pinch roller support of a superfinishing machine, a first side plate of the L-shaped support plate is connected with the fixed plate, and a second side plate of the L-shaped support plate is connected with the oilstone frame. The air cylinder is arranged on a second side plate of the L-shaped supporting plate, an air cylinder connector is arranged at the output end of the air cylinder, a connecting block is arranged at the top of the fixing plate, the oilstone frame comprises a mounting part and a connecting part, the connecting part is arranged on the connecting block, the mounting part is provided with a hole channel used for allowing oilstone to penetrate through, and the end face of the hole channel is opposite to the air cylinder connector. The device is simple and practical in structure, and is matched with a superfinishing machine so as to realize superfinishing of the inner ring raceway of the tapered roller bearing and superfinishing of the inner ring flange of the tapered roller bearing.