131results about "Superfinishing machines" patented technology

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 discloses a vertical superfinishing machine intelligent servo control method based on dynamic parameter identification, and relates to the technical field of servo control. Comprising the steps that first sensing equipment is arranged on a key motion axis of target equipment and used for obtaining vibration data of the motion axis, and vibration information items are obtained; and second sensing equipment is arranged on the oilstone unit, is pressure and temperature integrated sensing equipment and is used for acquiring real-time pressure data and temperature data of the oilstone to obtain a pressure information item and a temperature information item. According to the method, damage sorting is combined, low-damage combinations with different oscillation frequencies and feeding speeds are preferentially selected to serve as equipment execution, updating information of vibration information items, pressure information items and temperature information items is deeply obtained, secondary adjustment is conducted on initial information items, and the accuracy of the equipment is improved. Therefore, oilstone driving control based on dynamic parameter identification of vibration data, temperature data and pressure data combination is realized.

The invention discloses a servo connecting rod high-frequency swing mechanism, which belongs to the technical field of bearing processing equipment, and comprises an adjusting piece and a swing head which are arranged on the same side outside a bracket, one end of the transmission shaft is connected with the adjusting piece; one end of the swinging shaft is connected with the swinging head; the two ends of the connecting rod are eccentrically arranged relative to the transmission shaft and the swing shaft respectively and rotationally connected with the adjusting piece and the swing head respectively; the adjusting piece is used for adjusting the eccentric distance of the connecting rod relative to the transmission shaft in the radial direction. The belt link is omitted through direct-drive transmission, the servo motor coupler directly drives the transmission shaft, power loss is reduced, and the swing frequency and stability are improved.

In a finishing method for finishing a workpiece (100), the workpiece has a circumferential surface (114) extending about a workpiece axis (112) about which the workpiece is rotated and at least one end face (115) to be finished is machined by means of a first finishing tool in order to carry out finishing, the first finishing tool is pressed against the end face and is placed in a first oscillating movement transverse to the workpiece axis. In this case, a workpiece is machined, in which the circumferential surface and the end face are turned into one another in a transition region, and the end face (115) has a contour that is curved in the radial direction at least in an annular outer section (119) adjoining the transition region, the angle between the workpiece axis and the local surface normal (N) of the end face varies in the radial direction. In order to carry out the finishing, a first finishing tool is used, which has a pressing seat (230), which presses the finishing belt (210) against the end face, wherein the pressing seat can rotate around a rotation axis (235) and follows the contour of the arch of the end face when the radial position of the embedding area between the finishing belt and the end face changes under the condition that the rotation position changes.

The invention discloses a machine tool for superfinishing the outer diameter of a convexity cylindrical tapered roller, and belongs to the technical field of bearing finish machining, the machine tool comprises a machine tool body, a guide roller mechanism is arranged on the machine tool body, the guide roller mechanism is provided with at least two guide rollers which are matched with each other, oilstone clamps are correspondingly arranged above the guide rollers, and the angles of the two guide rollers on the horizontal plane and the vertical plane can be adjusted. According to the machine tool, a cylinder and a tapered roller can be machined through the same equipment, the machining precision is effectively improved, chippings generated during machining can be optimized, and the cooling effect of a workpiece in the machining process can be ensured.

The utility model discloses an automatic adjusting device for the extension length of an ultra-fine oilstone, which comprises an oilstone and a mounting seat used for being mounted on external bearing processing equipment, the mounting seat is provided with an adjusting groove along the height direction, the oilstone slides in the adjusting groove, and the initial end of the oilstone penetrates out of an opening at the tail end of the adjusting groove. A pressing plate used for pressing the tail end of the oilstone is arranged in the adjusting groove in a sliding mode, and the installation base is provided with a driving piece used for being in linkage fit with external hydraulic driving equipment so as to apply loads to the oilstone through the pressing plate and a guiding piece used for being in linkage fit with the driving piece so as to guide the loading position and direction of the loads. The pressing plate is provided with a detection piece used for detecting the contact degree of the starting end of the oilstone and an external bearing ring channel and a positioning piece used for guiding and positioning the sliding direction of the oilstone. The oilstone solves the problem of poor contact between the oilstone and a product to be machined due to the fact that the extension length of the traditional oilstone is not adjusted in time or the oilstone is abraded excessively during machining.

The invention discloses a servo direct-drive high-frequency swing mechanism, and belongs to the technical field of bearing machining equipment. A swing spindle attached to the housing; one end of an output shaft of the servo motor is connected with the rear end of the swinging main shaft, and the other end is connected with a servo encoder for controlling the swinging amplitude and the swinging frequency of the swinging main shaft; the swing head part is connected with the front end of the swing spindle and used for machining a bearing groove, a front end cover is arranged at the front end of the swing spindle and connected with a support, a screw is rotationally connected to the support, and the shell is in threaded fit with the screw. The swing frequency adjusting device has the characteristics of shortened and compact structure, convenience in adjustment, attractive appearance and the like, and the swing frequency of the ball bearing channel superfinishing machine can be improved, so that the superfinishing rhythm is accelerated, the superfinishing precision is improved, and the machining performance of a machine tool is improved.

The present invention belongs to the field of ultra-precision machining technology, and specifically discloses a full-band surface error collaborative control method based on a composite structure polishing tool, including: obtaining initial low, medium and high frequency error distribution models. Analyzing the error distribution characteristics of each frequency band on the workpiece surface, and establishing a full-band surface error collaborative control model. Obtaining the material removal depth, and setting the maximum value of the surface error distribution of each frequency band. Adopting the optimal combination algorithm to obtain the optimal driving voltage value, the optimal trajectory and the related parameter combination. According to the optimal parameter combination, a judgment matrix is established to evaluate the execution effect under the parameter combination. According to the judgment matrix, the coefficient value in the collaborative control model is calculated, combined with the external constraints, and substituted into the full-band surface error collaborative control model to obtain the optimal solution and obtain the optimal collaborative control strategy. The present invention can ensure the structural stability of the entire tool, and ensure that the low-frequency surface shape is not damaged while suppressing the medium-frequency PSD1 error.

The utility model provides a centering shaft for fine grinding of an inner groove of a deep groove ball bearing, and relates to the technical field of deep groove ball bearing equipment. Comprising a sleeve, a pressing plate is mounted on one side of the sleeve, the sleeve and the reinforcing sleeve are connected by arranging the sleeve, the reinforcing sleeve, an external connecting rod and a reinforcing mounting rod, operation continues, the problem that the inner diameter of a workpiece is scratched is fundamentally solved in a combined rotating mode, the sleeve can enter the workpiece more easily, and therefore the chamfer and the end face of the workpiece are protected; the sleeve and the reinforcing sleeve are matched and connected for use, so that the overall use range is wide, the improved combined centering shaft can properly select parts according to the machining size of a workpiece, only part of the parts in the inner diameter sleeving assembly are replaced within the proper workpiece size range, the adjusting time is shortened, the machining efficiency is improved, and the machining cost is reduced. The whole device is simple and easy to operate, no power equipment is used for auxiliary operation, and the whole installation and use cost is saved.

The application discloses a vertical super-precision machine intelligent servo control method based on dynamic parameter identification and relates to the technical field of servo control. The method comprises the following steps: arranging a first sensing device on a key motion shaft of a target device, so as to acquire vibration data of the motion shaft and obtain vibration information items; and arranging a second sensing device on an oil stone unit, wherein the second sensing device is a pressure and temperature integrated sensing device, so as to acquire real-time pressure data and temperature data of the oil stone and obtain pressure information items and temperature information items. According to the application, low-damage combinations of different oscillation frequencies and feed speeds are preferentially selected as the device to be executed through combined damage sequencing, and the update information of the vibration information items, the pressure information items and the temperature information items is acquired in a deep level, so that the initial information items are secondarily adjusted, thereby realizing the oil stone driving control based on the dynamic parameter identification of the combination of the vibration data, the temperature data and the pressure data.

The utility model relates to the field of bearing processing, in particular to a double-rotation inner support device for superfinishing a high-precision bearing inner ring, which is used for supporting the bearing inner ring and comprises a support shaft, a step is arranged at the front end of the support shaft, and a first inner support component and a second inner support component are detachably mounted at the front end of the support shaft through locking components. The inner supporting structure has the advantages that strain, scratches, black marks and the like caused by contact between the inner supporting structure and the inner surface of the bearing inner ring are effectively avoided, a pressing wheel does not need to be used, and the inner supporting structure is simple in structure, convenient to use and high in practicability. Therefore, scratches generated when the pressing wheel presses the end face of the bearing inner ring are effectively avoided, and the appearance of the bearing inner ring is improved. And errors caused by friction can be reduced, the machining precision of the bearing inner ring is improved, and the situation that when the bearing inner ring is machined, the outer circle face of the pressing wheel is abraded too early, and consequently the precision of a workpiece is affected is avoided.

The invention belongs to the field of superfinishing of raceway surfaces, and particularly relates to a process for synchronously finishing machining of an inner raceway and a flange of a workpiece. Workpiece feeding and discharging actions can be completed through the single-shaft mechanical arm, the feeding and discharging plate longitudinally feeds and discharges the workpieces through cooperation of the two blocking strips transversely distributed at the bottom and the longitudinal air cylinder, the operation efficiency is high, the feeding and discharging online effect between two machining stations is better, the structure is more compact, and the practicability is high. And the flange grinding mechanism is used for grinding the flange surface, and the raceway grinding mechanism is used for grinding the raceway surface, so that the synchronous machining operation of the flange and the raceway can be completed through one-time feeding and discharging, the machining efficiency is greatly improved, and the machining precision is ensured.

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.

The roller bearing component (17) has a central portion (27) having a peripheral surface with at least an axially extending linear profile, and end portions (25) having peripheral surfaces with a crown profile. The superfinishing method includes superfinishing the end portions (25) with a first grinding stone (31) while rotating the component (17), and superfinishing the central portion (27) with a second grinding stone (33) prepared separately from the first grinding stone (31) while rotating the component (17).

The invention relates to a finishing device (10) for finishing a ring-shaped workpiece, comprising a finishing tool (12) and an oscillation drive (16) for driving the finishing tool along an oscillation axis (18), a rotary drive for driving the workpiece about a rotation axis (52), and a support device for supporting the workpiece on a horizontal support plane (88). The support device has at least one support unit (22, 24, 26) with a roller carrier (38, 40, 42) on which a support roller rotatable about a support roller axis is arranged for supporting an underside of the workpiece, and on which a support roller rotatable about a contact roller axis is arranged for contacting a circumferential surface of the workpiece. The roller carrier (38, 40, 42) of the support unit (22, 24, 26) is mounted on a frame and is aligned along a roller carrier adjustment axis (44, 46, 48). It is movable.The invention further relates to a finishing system.

This invention provides an ultrasonic grinding device for cylindrical rollers based on piezoelectric composite waves, comprising a longitudinal torsional transducer, a piezoelectric tool head, and a spindle turntable. The longitudinal torsional transducer is positioned above the piezoelectric tool head. The upper surface of the spindle turntable is uniformly provided with multiple straight grooves, and cylindrical rollers are uniformly distributed within these grooves. The piezoelectric tool head is positioned above the cylindrical rollers. This invention combines the longitudinal torsional standing wave of the longitudinal torsional transducer with the bending vibration traveling wave of the piezoelectric tool head. The tangential motion of the piezoelectric tool head's particles achieves micro-cutting grinding of the cylindrical roller's curved surface. The high-energy impact generated by the longitudinal torsional transducer in the normal direction achieves deep rolling reinforcement of the cylindrical curved surface. This solves the main problems of low processing efficiency and the inability to achieve surface modification of the cylindrical roller surface in existing processing methods.

The invention relates to a finishing device (10) for finishing a ring-shaped workpiece, comprising a finishing tool (12) and an oscillation drive (16) for driving the finishing tool along an oscillation axis (18), a rotary drive for driving the workpiece about a rotation axis (52), and a support device for supporting the workpiece on a horizontal support plane (88). The support device has at least one support unit (22, 24, 26) with a roller carrier (38, 40, 42) on which a support roller rotatable about a support roller axis is arranged for supporting an underside of the workpiece, and on which a support roller rotatable about a contact roller axis is arranged for contacting a circumferential surface of the workpiece. The roller carrier (38, 40, 42) of the support unit (22, 24, 26) is mounted on a frame and is aligned along a roller carrier adjustment axis (44, 46, 48). It is movable.The invention further relates to a finishing system.

The utility model belongs to the technical field of bearing machining, and particularly relates to a bearing ring machining device for a superfinishing machine, which comprises a superfinishing machine body, a stabilizing mechanism which is arranged on a rack below a triangular chuck and has an auxiliary supporting effect on a bearing ring, and a transverse moving mechanism which is arranged on the rear side of the rack. A moving frame is arranged above the transverse moving mechanism, a vertical plate is arranged above the moving frame, a vertical lifting mechanism is arranged on the front side of the vertical plate, a lifting plate is arranged on the front side of the vertical lifting mechanism, a vertical plate is arranged on the lifting plate, and a transverse swing mechanism is arranged on one side of the vertical plate. A longitudinal rotating mechanism is arranged at the output end of the transverse swing mechanism, and a grinding block is arranged at the output end of the longitudinal rotating mechanism. The device is reasonable in design, simple in structure and convenient to machine, the using functionality of the device can be improved, the workpiece machining precision is ensured, the working progress is guaranteed, and the using requirement is met.

An electrochemical gradient thickening-vibration micro-motion composite conformal polishing ultra-precision manufacturing method, which utilizes electrochemical gradient thickening phase-induced electrochemical interface reaction to guide the directional movement of charged particles and control the particle aggregation effect of the suspension, and then utilizes a flexible fluid abrasive tool to generate a vertical axis vibration micro-motion force for efficient conformal removal. An electrochemical gradient thickening-vibration micro-motion composite conformal polishing ultra-precision manufacturing device is also provided, which includes a box body, a conformal polishing device, a power supply auxiliary device, an electrochemical gradient thickening polishing processing suspension delivery device, and a polishing auxiliary device. The present application has a wide variety of workpiece processing types, which can greatly improve the shape and surface precision, and can also achieve atomic or near-atomic scale polishing precision.

The invention belongs to the technical field of superfinishing machines, particularly relates to a bearing outer ring superfinishing machine for a tapered roller bearing, and aims to solve the problem that the positioning efficiency and effect of a bearing outer ring need to be improved in the prior art, the bearing outer ring superfinishing machine comprises a machine table, and mounting frames are fixedly mounted on the two sides of one end of the top end of the machine table; and a material conveying roller is rotationally mounted in each mounting frame, and a side frame is fixedly mounted at the other end of the top end of the machine table. A bearing outer ring can slide to the top end of a tray, then an electric push rod extends to push the bearing outer ring to the outer side of a center cylinder, then a motor is adjusted to work to enable a two-way threaded rod to rotate, and three expansion rods are expanded outwards from the outer wall closest to the circumference of the center cylinder to be attached to the inner side of the bearing outer ring; meanwhile, an air pump sucks air to enable air ports of a plurality of rectangular frames to be in a negative-pressure air suction state, negative-pressure adsorption enables the supporting outer ring to horizontally move along the circumference of the center cylinder, the bearing outer ring is assisted to be rapidly positioned on the outer side of the center cylinder, and the bearing outer ring is rapidly and accurately positioned.

An apparatus for spot polishing the work rolls of a metal sheet or plate leveler having a series of upper work rolls and a series of lower work rolls. The apparatus includes a spot polisher frame, an airbag, and a polisher including an abrasive surface configured to polish one of the upper work rolls or one of the lower work rolls. The apparatus further includes a polisher arm. The polisher is attached to a first end of the polisher arm. The apparatus further includes a second end of the polisher arm hingedly connected to the spot polisher frame. The airbag is configured to inflate and deflate with air. While the airbag is inflated with air the polisher is at a first position, and while the airbag is deflated the polisher is at a second position. The first position is further from the spot polisher frame than the second position.

The present application relates to gem valve seat processing technical field, especially a kind of high-precision sapphire valve seat ball groove grinding method, first, the sapphire blank is finished sapphire valve seat's spherical groove;In new grinding device, sapphire valve seat precision forming blank is placed in center positioning hole, add fine grinding paste to start grinding device and grind fine sapphire valve seat after grinding, sapphire valve seat is placed in center positioning hole, after sapphire ball is bonded in the lower end of swing lever, it is placed in the spherical groove of sapphire valve seat, add fine grinding paste and grind;Matched sapphire ball is placed in the spherical groove of sapphire valve seat after fine grinding, after adding grinding liquid, grinding damper pad and sapphire ball are contacted to start grinding;The present application realizes the automation of high-precision gem valve seat and batch production, so that valve seat surface finish effect and quality are more stable, the efficiency of valve seat is improved, the pass rate of product is greatly improved, and production cost is reduced.

The utility model discloses a superfinishing machine pinch roller convenient to replace, which comprises a mounting plate, one side of the mounting plate is provided with a first mounting pipe, the first mounting pipe is internally provided with a first threaded rod, one side of the first threaded rod is provided with a second threaded rod, one side of the second threaded rod is provided with a knob, and the knob is internally provided with a second threaded rod. A second mounting pipe is arranged on one side of the first threaded rod; through cooperation of the pressing plate, the hidden groove, the slope baffle, the limiting plate, the first mounting pipe, a first threaded rod, a rotary knob, a second threaded rod, a second mounting pipe, a first magnet, a push plate, a sliding plate and a second magnet, in the bearing machining process, the position of a bearing can be rapidly fixed, the bearing can be conveniently replaced subsequently, and the machining efficiency is improved. And meanwhile, the bearing can be maintained at a designated position, the bearing cannot deviate in the machining process, meanwhile, the device can adapt to bearings of different sizes, different bearings can be conveniently fixed, and the fixing convenience is improved.

A method for detecting subsurface damage of small curved surface parts based on small-spot magnetorheological polishing, which relates to the field of ultra-precision machining. To solve the problems that the detection accuracy of existing methods is greatly affected by the resolution and motion accuracy of the system and the detection accuracy is relatively low. The method includes the following processes: performing single-point polishing on the small curved surface part, and etching the small curved surface part; obtaining the three-dimensional topographic profile of the polished spot on the etched small curved surface part, and intercepting its two-dimensional profile to obtain the cross-sectional profile of the polished spot, where the cross-sectional profile of the polished spot includes a grinding area and a polishing area; using a microscope to observe the microscopic surface topography of the polished spot after etching, and measuring the horizontal distance D from the position where the subsurface crack disappears at the polished spot to the polishing boundary line; reconstructing the fitting contour curve of the removed material, calculating the shortest distance from the position where the crack disappears on the cross-sectional profile of the polished spot to the fitting contour curve of the removed material, and obtaining the result of the subsurface damage depth.

This application relates to the technical field of superfinishing equipment for bearing rings, and discloses a grinding device and a grinding process for superfinishing bearing rings, including a swing arm. One end of the swing arm is fixedly connected with a fixed seat. A clamping block is slidably connected inside the fixed seat. An oilstone is arranged inside the clamping block. A pressing block for fixing the oilstone is movably arranged on one side of the clamping block. In the process of the clamping block driving the fastening gear and the adjusting gear to move synchronously, the fastening gear and the adjusting gear sequentially contact the corresponding first tooth plate and second tooth plate. Thus, when the pressing block releases the clamping and locking of the oilstone, the length of the oilstone extending out of the clamping block is adjusted, and during the process of the clamping block moving towards the outside of the fixed seat, the clamping and fixing action of the oilstone and the moving-away action of the adjusting rod are sequentially and continuously completed, improving the service life of the grinding device and ensuring the grinding quality of the bearing ring.

The invention provides a large surface throttling self-compensating ultra-precise hydrostatic pressure rotary table, and relates to the field of household kitchens. The large surface throttling self-compensating ultra-precise hydrostatic pressure rotary table comprises a first base, a second base is fixedly installed at the top of the first base, a stator ring is fixedly installed at the top of the second base, a rotor shaft is movably installed in the stator ring, and a connecting disc is fixedly installed at the top of the rotor shaft. An oil cavity and four thickened oil cavities distributed in an annular mode are formed in the stator ring. The base, the stator ring, the rotor shaft and other parts form a basic structure, the oil inlet pipe, the oil outlet pipe and the like form a circulating oil way, the thickness of an oil cavity is synchronously or independently adjusted by means of the adjusting assembly and the fixing assembly, and safety protection under extreme working conditions is provided in cooperation with the rolling shaft. The problem that in the prior art, the thickness of an oil cavity cannot be flexibly adjusted, and deviation of a rotor shaft cannot be coped is effectively solved, and the stability and machining precision of the rotary table in optical mirror machining 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 utility model provides an insert bearing superfinishing grinding device which comprises a base, a workpiece rotating supporting mechanism and an oilstone swing mechanism are arranged on the base, the workpiece rotating supporting mechanism comprises a workpiece rotating main shaft and a centering shaft which are coaxially arranged in the horizontal direction, a magnetic attraction positioning disc is arranged at the end of the workpiece rotating main shaft, and the centering shaft can move in the axial direction. The oilstone swinging mechanism comprises an oilstone swinging rotating shaft perpendicular to the workpiece rotating main shaft, an oilstone frame is installed at the end of the oilstone swinging rotating shaft, oilstone is assembled on the side, close to the workpiece rotating main shaft, of the oilstone frame, and an extension line, extending downwards, of the lower end of the oilstone and an axial extension line of the oilstone swinging rotating shaft intersect at a point O; and the O point is positioned below the outer arc surface of the workpiece and on the central line of the longitudinal section. The device has better workpiece positioning and rotating stability, the oilstone swing head is reasonable in structural design, the path of the arc above the lower end face of the oilstone moves in the axial direction of the workpiece, and ultra-precision grinding of the outer circumferential face of the outer spherical bearing can be achieved.

The invention relates to the field of aero-engine manufacturing, and discloses an ultra-precision automatic grinding device and method for an inner step end face, in the device, a grinding fixing disc is located above a grinding face of a grinding machine, the top face and the bottom face of a grinding tool are grinding machining faces, and the grinding tool is fixed in the grinding fixing disc; the top face or the bottom face of the grinding tool makes contact with the grinding face of the grinding machine through the grinding fixing disc, a grinding face is arranged in the workpiece, the workpiece cover is arranged on the top face or the bottom face of the grinding tool, the grinding face of the workpiece makes contact with the top face or the bottom face of the grinding tool, and the workpiece is pressed on the grinding tool through the balance weight unit. The top face and the bottom face of the grinding tool can serve as machining faces of the grinding face of a workpiece, self-repairing can be achieved through contact with the grinding face of a grinding machine in the machining process, and the situation that the machining precision is reduced due to abrasion of the grinding tool is avoided.

A vibrating stone grinder, comprising a lower housing, an upper housing and a control panel, wherein the upper housing is fixedly connected to an upper surface of the lower housing, a protective cover is arranged on an inner wall of the upper housing, and the control panel is arranged at a joint position of the upper housing and the lower housing, wherein the control panel comprises a assembly main board, the assembly main board is bolted to the inner wall of the lower housing, a surface of the assembly main board is fixedly connected with a display screen, a power switch, an acceleration button, a deceleration button, and an adjustment button.