CN110587441A - Vertical grinding machine for ball base surface of bearing roller - Google Patents

Abstract

The invention provides a vertical super grinding machine for a ball base surface of a bearing roller, which comprises a vertical machine tool body, wherein a horizontal working platform is arranged on the machine tool body, a working disc mechanism is arranged above the working disc platform, a grinding wheel mechanism for the bearing roller and at least one group of super-finishing mechanisms are sequentially arranged outside the circumference of the working disc mechanism along a processing path of the bearing roller, a plurality of groups of super-finishing units are arranged, oilstones of the plurality of groups of super-finishing units are arranged on a bounding wall according to a roller motion path track, so that the ball base surface of the roller is ground along a curved track, all the super-finishing units are driven by an oscillating assembly to synchronously oscillate and grind along the vertical direction with fixed amplitude, the amplitude and the vibration frequency of the oilstones are ensured to be consistent, the super-finishing precision of the super grinding machine for the ball base surface of the roller is improved, the processing quality of the roller is improved, and the elastic reset of a resetting, the oilstone is flexibly reset and is in self-adaptive fit with the base surface of the roller ball in the resetting process, and the processing precision of the super grinding machine is improved.

Description

Vertical grinding machine for ball base surface of bearing roller

Technical Field

The invention relates to the technical field of bearing roller spherical datum plane precision machining equipment, in particular to a vertical type super grinding machine for a bearing roller spherical datum plane.

Background

Because the speed per hour of the high-speed rail is as high as 200km/h, when the bearing is selected to be used by the wheel of the high-speed rail, the processing precision of the roller ball base surface of the bearing is higher than that of the common bearing, so that the load bearing requirement when the high-speed rail is steered and meets the vehicle can be met.

The superfinishing method generally adopted for superfinishing the ball base surface of the bearing roller is to respectively finish the processes of rough grinding, fine grinding and superfinishing on a superfinishing machine, wherein in the processes of rough grinding, fine grinding and superfinishing, a rough oilstone wheel, a fine oilstone and a superfinishing oilstone are respectively used for grinding.

The invention patent with the patent number of CN201810257963.8 and hereinafter called as the comparison document 1 discloses a vertical type composite processing machine tool based on a conical roller sphere base surface, which adopts an upper disc main shaft and a lower disc main shaft which are arranged perpendicular to a horizontal line, and a lower disc working disc at the upper end of the lower disc main shaft is provided with a material separating disc which is fully filled with rollers, so that the rollers rotate and revolve on a horizontal plane from feeding to discharging, and the processing state is stable; meanwhile, the working disc is fully filled with rollers, the main shaft is balanced in stress and has no unbalance loading, so that the operation is stable; the periphery of the workbench is also provided with a multi-point superfinishing mechanism, and the arrangement of the superfinishing mechanism improves the finish of the processed surface.

The vertical combined machining tool for the spherical basal plane of the conical roller in the patent is an existing super-fine grinding machine tool for the spherical basal plane of the bearing roller, and in the super-fine grinding process, common oilstones are still used for grinding and machining, and the precision of the super-fine grinding is not achieved.

In patent document CN201110296398.4, hereinafter referred to as symmetric document 2, an ultra-precision grinding oscillating mechanism is specifically disclosed, which comprises an oscillating mechanism on an ultra-precision grinding machine tool, a sheave is rotationally coupled to two balance wheels between a left balance weight and a right balance weight, the sheave is of a two-piece symmetric structure and is fixed on a rotating shaft by screws, a driving wheel is mounted on the rotating shaft at two sides of the sheave, and a transmission plate is coupled between the driving wheel and a ram, and the transmission plate converts the rotation of a motor into oscillation by the sheave transmission mechanism to drive the ultra-precision oilstone to oscillate back and forth.

Although the above patent discloses that the ultra-precision grinding machine is additionally provided with an oscillating mechanism to drive the oilstone clamp to oscillate, so as to obtain higher processing precision, the following technical problems still exist:

1. the single oscillating mechanism drives the single oilstone to oscillate, so that the amplitude and the oscillation frequency of the oilstones are inconsistent, and the consistency of the processing precision of the base surface of the roller ball is influenced;

2. in the process that the driving wheel and the grooved pulley are matched to drive the oilstone clamp to oscillate, the oilstone clamp still returns forcibly under the driving of the driving wheel and the grooved pulley, and the self-adaptive process of the oilstone and the roller ball base surface in the returning process is lacked, so that the machining precision of the superfinishing machine is limited;

3. in the oscillation process, only one oilstone is driven to oscillate, a plurality of oilstones are arranged on the superfinishing machine, the oscillation frequencies of the oilstones are inconsistent and can interfere with each other, and the processing precision of the base surface of the roller ball is reduced;

4. when the driving wheel is matched with the groove on the grooved wheel, the driving wheel needs to be ensured to rotate freely in the groove, so that a matching gap is certainly formed, the superfinishing machine is a superfinishing device, and the machining precision of the superfinishing machine is limited by the existing matching gap;

5. the driving wheel is matched with the groove on the grooved wheel, the oilstone clamp can only be driven to oscillate along the guide of the groove, and the oscillation amplitude of the oilstone clamp cannot be adjusted.

Disclosure of Invention

Aiming at the problems, the invention provides a vertical super grinding machine for a ball base surface of a bearing roller, which is characterized in that a plurality of groups of super-precision units are arranged, oilstones of the super-precision units are arranged on a surrounding plate according to the motion path track of a roller, so that the ball base surface of the roller is ground along a curved track, and simultaneously, an oscillation assembly is matched to drive all the super-precision units to synchronously oscillate and grind along the vertical direction at a fixed amplitude, so that the amplitude of the oilstones is ensured to be consistent with the vibration frequency, the super-precision of the super grinding machine on the ball base surface of the roller is improved, the processing quality of the roller is improved, and the oilstones are flexibly reset by matching with the elastic reset of a reset assembly, are adaptively matched with the ball base surface of the roller in the reset process, and the.

In order to achieve the purpose, the invention provides the following technical scheme:

a vertical grinding and super-grinding machine for the spherical basal plane of bearing roller is composed of a vertical machine tool body with a horizontal working platform, an adjusting platform is arranged above the working platform, a horizontally placed working disc mechanism is arranged at the central position of the adjusting platform, the working disc mechanism is arranged on a vertically arranged rotating mechanism, a grinding wheel mechanism and at least one group of super-precision mechanisms are sequentially arranged along the circumferential direction of the working disc mechanism, the working disc mechanism comprises a lower working disc, a separation disc and an upper working disc which are coaxially arranged in sequence from bottom to top along the vertical direction, a plurality of rollers to be processed are uniformly distributed on the separation disc along the circumferential direction of the separation disc, the roller synchronously revolves along with the isolation disc, and simultaneously, the roller rotates by means of the matching, pressing and friction of the lower working disc and the upper working disc, the superfinishing mechanism comprises a mounting seat, and a superfinishing assembly, an oscillating assembly and a resetting assembly which are mounted on the mounting seat;

the superfinishing assembly comprises a coaming and at least one group of superfinishing units, the coaming is mounted on the mounting seat and can be arranged in a movable mode along the vertical direction relative to the mounting seat, the superfinishing units are arranged along one side, close to the ball base surface of the roller to be superfinished, of the coaming, and the reset assembly which is always in interference fit with the mounting seat is mounted on the edge of the other side, opposite to the superfinishing units, of the coaming;

the oscillating assembly is vertically installed on the installation seat, an oscillating end below the oscillating assembly is always abutted to the upper end face of the enclosing plate and pushes the enclosing plate to oscillate with the superfinishing assembly in a fixed amplitude mode, and the oscillating enclosing plate and the superfinishing assembly reset through the resetting assembly.

As an improvement, a clamping groove is formed in the mounting seat, a clamping block correspondingly clamped with the clamping groove is arranged on the edge of the other side, opposite to the superfinishing unit, of the enclosing plate, the length directions of the clamping groove and the clamping block are both in curved arrangement and are arranged in parallel with the moving path of the roller, so that the path transmitted to the corresponding superfinishing unit in the oscillation process of the oscillation assembly is consistent, the oscillation consistency of each superfinishing unit is ensured, the clamping groove is matched with the width of the clamping block, and the height of the clamping groove in the oscillation direction of the enclosing plate is larger than the height of the clamping block; the lower end face of the enclosing plate is uniformly provided with a plurality of positioning grooves along the length direction of the clamping block, a plurality of reset components are arranged in the corresponding positioning grooves in a one-to-one correspondence mode, each reset component comprises a guide sleeve vertically and slidably arranged in the corresponding positioning groove and an elastic piece which is arranged in the guide sleeve and is in interference fit with the upper end face of the corresponding positioning groove.

As an improvement, a plurality of groups of the super-precision units are uniformly distributed and installed on the edge of the enclosing plate, and each super-precision unit comprises:

the oilstone clamp is horizontally and fixedly arranged on the coaming, and a sliding groove pointing to the bearing roller is formed in the oilstone clamp;

the oilstone is slidably arranged in the sliding chute, and the working end of the oilstone, which extends out of the sliding chute and is abutted against the ball base surface of the roller, is arranged in a curved shape and is superposed with the curved processing path of the ball base surface of the roller;

the push plate is arranged on the rear side of the oilstone and is arranged in the corresponding sliding groove in a sliding manner; and

the propelling movement driving piece is installed below the enclosing plate and used for adjusting the length of the oilstone extending out of the sliding groove.

As an improvement, the working ends of the oilstones of the plurality of groups of superfinishing units are arranged in a curved shape in a transitional and side-by-side mode, are overlapped with the processing path of the ball base surface of the roller and are arranged in parallel with the length direction of the fixture block, so that the oilstones and the roller are enabled to keep consistent in oscillation of the end portions matched in processing, and the processing precision is improved.

As an improvement, the oscillating assembly comprises a rotary driving device which is perpendicular to the enclosing plate, an oscillator seat which is coaxially sleeved outside a rotary shaft of the rotary driving device, an amplitude adjusting unit which is installed below the rotary shaft and synchronously rotates along with the rotary shaft, and a longitudinal oscillator pin which is coaxially installed inside the oscillator seat, wherein the longitudinal oscillator pin is located below the amplitude adjusting unit, the longitudinal oscillator pin comprises a working end part and a matching end part which are respectively arranged at two axial ends of the longitudinal oscillator pin, the working end part and the enclosing plate are always in abutting connection, and the matching end part is convexly provided with a protruding part a which is in intermittent abutting connection with the amplitude adjusting unit along the circumferential direction of the matching end part.

As an improvement, the oscillating assembly further comprises an elastic connecting unit coaxially sleeved outside the rotating shaft through a conical structure.

As an improvement, the amplitude adjusting unit is a bump or a ball with a fixed protruding distance and arranged on the lower end part of the elastic connecting unit.

As an improvement, a plurality of positioning grooves are uniformly distributed on the lower end face of the enclosing plate along the length direction of the clamping block, a plurality of reset components are correspondingly arranged in the corresponding positioning grooves one by one, and each reset component comprises a guide sleeve vertically and slidably arranged in the corresponding positioning groove and an elastic piece which is arranged in the guide sleeve and is in butt fit with the upper end face of the corresponding positioning groove.

As an improvement, the rotating mechanism comprises a lower driving assembly for driving the lower working disc to rotate and an upper driving assembly for driving the upper working disc to lift and rotate, a central shaft which protrudes upwards from the axis of the lower driving assembly and is coaxial with the lower working disc is arranged on the axis of the lower driving assembly, and a positioning connecting piece which is coaxially sleeved with the central shaft in a corresponding manner is arranged on the upper driving assembly.

As an improvement, the isolation discs are arranged in parallel along a horizontal plane and are arranged in an up-down symmetrical manner, the isolation discs are coaxially sleeved on the central shaft, a plurality of isolation grooves pointing to the circle centers of the isolation grooves are distributed on the outer circumferences of the isolation discs at equal intervals, the isolation grooves on the isolation discs above the corresponding roller axes cover the portions below the corresponding roller axes, the planes where the roller axes are located and the symmetry plane of the isolation discs are located on the same plane, and the covering portions where the isolation grooves are in contact with the rollers are both arranged in a slope manner.

The invention has the beneficial effects that:

(1) according to the invention, a plurality of groups of superfinishing units are arranged, and oilstones of the plurality of groups of superfinishing units are arranged on the enclosing plate according to the motion path track of the roller, so that the ball base surface of the roller is ground along a curved track, and simultaneously, the oscillating assembly is matched to drive all superfinishing units to synchronously oscillate and grind in a fixed amplitude manner along the vertical direction, so that the amplitude of the oilstone is consistent with the vibration frequency, the superfinishing precision of the superfinishing machine on the ball base surface of the roller is improved, the processing quality of the roller is improved, and the oilstone is flexibly reset by being matched with the elastic reset of the reset assembly, and is adaptively matched with the ball base surface of the roller in the reset process;

(2) according to the invention, the vibration component is arranged to synchronously drive the plurality of groups of superfinishing units to oscillate, and compared with the superfinishing units of the comparison document 2, the superfinishing units respectively oscillate a group of oilstones, so that the phenomena that the oscillation among the oilstones is interfered with each other, even the oscillation is mutually offset, and the superfinishing precision of the roller ball base surface by the superfinishing machine is influenced can be avoided;

(3) according to the invention, the rotary driving device is used for driving the rotary shaft to drive the amplitude adjusting unit to synchronously rotate, and the amplitude adjusting unit is directly in intermittent interference fit with the protruding part on the longitudinal pin of the oscillator, so that no fit clearance exists, the limit of the fit clearance on the machining precision of the grinding and super-machining machine is avoided, and the machining precision of the grinding and super-machining machine on the roller ball base surface is improved;

(4) according to the invention, the amplitude adjusting unit is set to be of a ball structure, and the distance between the ball and the protruding part on the longitudinal pin of the oscillator in interference fit is adjusted by using the adjusting screw, so that the adjustment of the oscillation amplitude of the oscillation mechanism is realized, the processing precision and the processing requirement are met, and the universality is stronger;

(5) according to the invention, the oscillation frequency of the longitudinal pin of the oscillator is adjusted by adjusting the number of the convex parts a on the matching end part and further adjusting the contact frequency of the amplitude adjusting unit and the convex parts a in the single-circle rotation process, so that the adjustment of the oscillation frequency of the oscillation mechanism is realized, the rotating speed of the alternating current motor is not required to be adjusted, and more different oscillation frequency requirements can be met;

(6) according to the invention, through the conical structures of the elastic connector and the elastic connecting nut, when the elastic connector is connected with the rotating shaft, the elastic connector and the rotating shaft can be rapidly centered, the coaxiality of the elastic connector and the rotating shaft is ensured, and the influence on the amplitude and the vibration frequency of an oscillating mechanism caused by inconsistent coaxiality is avoided;

(7) according to the invention, the separation disc is sleeved on the central shaft, the separation disc is not fixedly connected with the upper working disc and the lower working disc, and the separation disc is driven to rotate by the self rotation of the bearing roller, so that the revolution of the bearing roller is realized, the ball base surface of the bearing roller can pass through the grinding wheel mechanism and the super-precision assembly only after the ball base surface meets the grinding requirement, and the grinding precision is higher;

(8) according to the invention, the upper and lower parts of the horizontal plane of the bearing roller are coated by the mutual matching of the isolation grooves on the upper and lower isolation discs, and the parts of the isolation grooves coated with the bearing roller are arranged in a slope, so that the bearing roller can be accurately centered, the axis of the bearing roller is automatically positioned on the horizontal symmetrical plane of the isolation discs, and the consistency of the ball base plane of the bearing roller during the ultra-precision grinding processing is improved.

In conclusion, the invention has the advantages of ingenious design structure, high ultra-precision grinding precision, high coaxiality and concentricity of all the parts and the like, and is particularly suitable for the technical field of ultra-precision grinding processing of the ball base surface of the bearing roller.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic sectional view of an oscillating mechanism according to the present invention;

FIG. 4 is a schematic sectional view of an oscillating mechanism according to the present invention;

FIG. 5 is a schematic perspective view of a longitudinal pin of the oscillator of the present invention;

FIG. 6 is a first schematic structural diagram of an amplitude adjustment unit according to an embodiment of the present invention;

FIG. 7 is a perspective view of the superfinishing assembly of the present invention;

FIG. 8 is a schematic cross-sectional view of a superfinishing assembly of the present invention;

FIG. 9 is an enlarged view of the structure at A in FIG. 8;

FIG. 10 is a schematic perspective view of the reset mechanism of the present invention;

fig. 11 is a schematic structural diagram of an amplitude adjustment unit according to a second embodiment of the present invention;

FIG. 12 is a schematic cross-sectional view of a second elastic connecting element according to an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of a second amplitude adjustment unit according to an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a three-amplitude adjusting unit according to an embodiment of the present invention;

FIG. 15 is an enlarged view of the structure at B in FIG. 14;

FIG. 16 is a cross-sectional view of a longitudinal pin of a triple oscillator in accordance with an embodiment of the present invention;

FIG. 17 is a diagram illustrating a fourth embodiment of the present invention;

FIG. 18 is an enlarged view of the structure at C in FIG. 17;

FIG. 19 is a schematic structural diagram of the fifth embodiment of the present invention;

FIG. 20 is a perspective view of a bearing roller according to the present invention;

FIG. 21 is a schematic cross-sectional structural view of a six-working-disk mechanism according to an embodiment of the present invention;

FIG. 22 is a schematic view of the spacer disk separating the bearing rollers of the present invention;

FIG. 23 is a schematic cross-sectional view of the isolation tray isolation groove of the present invention;

FIG. 24 is a schematic view of the spacer disk sleeving structure according to the present invention;

FIG. 25 is a schematic structural diagram of a seventh embodiment of the present invention;

fig. 26 is a schematic sectional structure view of the feeding mechanism of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The first embodiment is as follows:

as shown in fig. 1 to 11, a vertical grinding and superfinishing machine for spherical basal surfaces of bearing rollers comprises a vertical machine tool body 1, wherein a horizontal working platform 11 is arranged on the machine tool body 1, an adjusting platform 12 is arranged above the working platform 11, a horizontally placed working disc mechanism 2 is arranged at the central position of the adjusting platform 12, the working disc mechanism 2 is installed on a vertically arranged rotating mechanism 3, a grinding wheel mechanism 4 and at least one group of superfinishing mechanisms 5 are sequentially arranged along the circumferential direction of the working disc mechanism 2, the working disc mechanism 2 comprises a lower working disc 21, an isolation disc 22 and an upper working disc 23 which are sequentially and coaxially arranged along the vertical direction from bottom to top, a plurality of rollers 10 to be processed are uniformly distributed on the isolation disc 22 along the circumferential direction, the rollers 10 synchronously revolve along with the isolation disc 22, and simultaneously rotate by means of the matching, compressing and rubbing of the lower working disc 21 and the upper working disc 23, the superfinishing mechanism 5 comprises a mounting seat 50, a superfinishing assembly 51 mounted on the mounting seat 50, an oscillating assembly 52 and a resetting assembly 53;

the superfinishing assembly 51 comprises a coaming 511 and at least one group of superfinishing units 512, wherein the coaming 511 is mounted on the mounting seat 50, the coaming 511 is movably arranged along the vertical direction relative to the mounting seat 50, the superfinishing units 512 are arranged along one side of the coaming 511, which is close to the ball base surface of the roller to be superfinished, and the resetting assembly 53 which is always in interference fit with the mounting seat 50 is mounted on the coaming 511 relative to the edge of the other side of the superfinishing units 512;

the oscillating assembly 52 is vertically installed on the installation seat 50, an oscillating end 520 below the oscillating assembly is always abutted to the upper end face of the enclosing plate 511, the enclosing plate 511 and the superfinishing assembly 51 thereon are pushed to oscillate in a constant amplitude mode, and the oscillating enclosing plate 511 and the superfinishing assembly 51 are reset through the resetting assembly 53.

Further, the oscillating module 52 includes a rotary driving device 521 disposed perpendicular to the enclosing plate 511, an oscillator seat 522 coaxially sleeved outside the rotary shaft 5211 of the rotary driving device 521, an amplitude adjusting unit 523 mounted below the rotary shaft 5211 and synchronously rotating with the rotary shaft 5211, and an internal oscillator longitudinal pin 524 coaxially mounted on the oscillator seat 522, wherein the oscillator longitudinal pin 524 is located below the amplitude adjusting unit 523, the oscillator longitudinal pin 524 includes a working end portion 5241 and a mating end portion 5242 separately disposed at two axial ends thereof, the working end portion 5241 and the enclosing plate 511 are always disposed in an abutting manner, and the mating end portion 5242 is protruded along a circumferential direction thereof with a protrusion portion a5243 intermittently in an abutting engagement with the amplitude adjusting unit 523.

As shown in fig. 3, it should be noted that the rotary drive device 521 according to the present invention is preferably a servo motor, the amplitude adjustment unit 523 rotates with the rotary shaft 5211 and is located on one side of the rotary shaft 5211 in the axial direction, the engagement end portion 5242 of the oscillator longitudinal pin 524 is provided in a step shape, and when the amplitude adjustment unit 523 rotates to be in interference engagement with the protrusion portion a5243 by the rotation of the rotary shaft 5211, the oscillator longitudinal pin 524 is pressed downward against the surrounding plate 511, the superfinishing unit 512 on the surrounding plate 511 moves downward in synchronization therewith, and when the amplitude adjustment unit 523 rotates to be out of engagement with the protrusion portion a5243, the oscillating surrounding plate 511 and superfinishing unit 512 can be reset by the reset assembly 53.

Compared with the structure of the background art reference 1, in the present application, the superfinishing assembly 51 which oscillates back and forth makes the oilstone oscillate in the vertical direction, and forms horizontal movement and vertical movement on the spherical basal plane of the roller 10 by matching with the revolution and rotation of the roller 10, and the oilstone for grinding on the superfinishing assembly 51 forms a movement track similar to a '8' shape on the spherical basal plane of the roller 10 by utilizing the mutual influence of the horizontal and vertical upward displacements, so that the precision requirement of the superfinishing processing is met, and the precision of the superfinishing processing of the spherical basal plane of the bearing roller is improved.

Further, compared with the background art and the comparison document 2 in which the single groups of superfinishing units oscillate respectively, the present invention mounts the multiple groups of superfinishing units 512 on the same enclosing plate 511, oscillates the enclosing plate 511 through the oscillating assembly 52, and synchronously oscillates the oilstones 5123 on the multiple groups of superfinishing units 512 through the enclosing plate 511, so that the amplitudes of the oilstones 5123 on the multiple groups of superfinishing units 512 are consistent with the oscillation frequencies, and the consistency of the ball base surface processing of the roller 10 is improved

Moreover, compared with respective oscillation of the superfinishing units of the comparison document 2, the superfinishing units of the present invention oscillate synchronously, and can avoid oscillation interference among a plurality of oscillation components.

As shown in fig. 8 and 9, as a preferred embodiment, a card slot 501 is provided on the mounting seat 50, a card slot 502 correspondingly engaged with the card slot 501 is provided on the other side edge of the enclosing plate 511 opposite to the superfinishing unit 12, both the card slot 501 and the card slot 502 are arranged in a curved shape in the length direction and are parallel to the moving path of the roller, the card slot 501 is adapted to the width of the card slot 502, and the height of the card slot 501 in the oscillating direction of the enclosing plate 511 is greater than the height of the card slot 502.

It should be noted that, in the present application, when the oscillation of the oscillating module iii is applied to the enclosing plate 511 by the way of the relative movement between the slot 502 and the slot 501, the enclosing plate 511 may oscillate along the slot 501, and the superfinishing unit 12 mounted on the enclosing plate 511 may oscillate in the radial direction of the bearing roller, and it should be emphasized that the way of the relative sliding between the enclosing plate 511 and the mounting seat 50 according to the present invention is not limited to the way of the engagement between the slot 501 and the slot 502, and the way of the relative movement between the enclosing plate 511 and the mounting seat 50 in the oscillation direction is within the scope of the present invention.

In addition, a plurality of positioning grooves 5111 are uniformly distributed on the lower end surface of the enclosing plate 511 along the length direction of the clamping block 502, a plurality of reset components 53 are correspondingly arranged in the corresponding positioning grooves 5111 one by one, each reset component 53 comprises a guide sleeve 531 vertically and slidably arranged in the corresponding positioning groove 5111 and an elastic piece 532 arranged in the guide sleeve 531 and in interference fit with the upper end surface of the corresponding positioning groove 5111

The structure of the resetting component 53 of the present invention is not limited to the resetting structure mentioned in the present invention, and any resetting structure that satisfies the automatic resetting of the coaming 51 after oscillation is within the protection scope of the present invention.

It should be noted that, compared with the background art that the driving wheel and the sheave of the reference 2 are matched to forcibly drive the oilstone on the oilstone clamp to reset, the present invention does not rely on the power of the rotary driving device 521 to forcibly drive the coaming 511 to reset, but the resetting component 53 is arranged below the coaming 511, and the coaming 511 resets through the elastic resetting capability of the resetting component 53, and in the process of resetting the coaming 511, the elastic restoring force of the resetting component 53 causes a section of self-adaptive process to be formed between the oilstone and the roller ball base surface, the present invention is more direct and forcible to return, and the processing precision of the super grinding machine on the roller ball base surface is higher.

As shown in fig. 7 and 8, as a preferred embodiment, multiple sets of the super-finishing units 512 are uniformly installed on the edge of the enclosing plate 511, and the enclosing plate 511 is installed on the adjusting platform 12 through a sliding slot, the super-finishing units 512 can be adjusted on the adjusting platform 12 along the sliding slot, and the super-finishing units 512 include:

the oilstone clamp 5121 is horizontally and fixedly arranged on the coaming 511, and a sliding groove 5122 pointing to the bearing roller is formed in the oilstone clamp 5121;

the oilstone 5123 is slidably mounted in the sliding groove 5122, and a working end 5124 of the oilstone 5123, which extends out of the sliding groove 5122 and is abutted against the ball base surface of the roller, is arranged in a curved shape and is overlapped with the curved processing path of the ball base surface of the roller 10;

a push plate 5125, wherein the push plate 5125 is arranged at the rear side of the oilstone 5123 and is slidably arranged in the corresponding sliding groove 5122; and

a pushing driving piece 5126, wherein the pushing driving piece 5126 is arranged below the enclosing plate 511, and the length of the oilstone 5123 extending out of the sliding groove 5122 is adjusted.

Further, a plurality of groups of working ends 5124 of the oilstone 5123 of the superfinishing unit 512 are arranged in parallel in a transitional manner and are arranged in a curved manner, and the working ends are parallel to the length direction of the fixture block 502.

It should be noted that the oilstone 5123 slides in the sliding groove 5122 of the oilstone clamp 5121, the end of the oilstone 5123 protruding out of the sliding groove 5122 just abuts against the ball base surface of the roller 10 for grinding, the curvature of the end of the oilstone 5123 for grinding is consistent with the curvature of the curved processing path of the ball base surface of the roller 10 in the superfinishing process, and the roller revolves and rotates annularly during the superfinishing process, and the oscillation assembly 52 is matched to drive the oilstone 5123 to oscillate, so that the path of the ball base surface of the roller is similar to the shape of 8 relative to the path of the oilstone 5123 in the superfinishing process, and the grinding manner of the 8-shaped path can make the force applied to the ball base surface of the roller more uniform and the heat dissipation effect better, therefore, the precision of the ball base surface of the superfinished roller is higher.

Here, it should be emphasized that although the oilstones 5123 of the super-precision units 512 are oscillated by the same oscillating assembly, each oilstone 5123 is controlled by its separate push driving member 5126, and the lengths of the extending chutes 5122 of each oilstone 5123 can be self-adjusted according to the wear degree without interfering with each other.

Moreover, it can be clearly known that the working ends 51231 of the oilstones 5123 in the plurality of groups of superfinishing units 512 are in transitional connection, arranged side by side in a curved shape, and arranged parallel to the length direction of the fixture block 502, so that the amplitude and the frequency of the oilstones 5123 can be ensured to be consistent, the transmission path of the oscillation assembly transmitted to each oilstone 5123 can be ensured to be consistent, the oscillation synchronism is better, and the superfinishing precision is improved.

Example two:

FIG. 12 is a schematic structural view of a second embodiment of the vertical milling and grinding machine for a spherical base surface of a bearing roller according to the present invention; as shown in fig. 12, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment shown in fig. 1 in that:

as shown in fig. 11, in the present embodiment, the oscillating assembly 52 further includes an elastic connection unit 525 coaxially sleeved outside the rotating shaft 5211 through a tapered structure.

Further, the amplitude adjusting unit 523 is a bump or a ball having a fixed protruding distance and disposed on the lower end of the elastic connecting unit 525.

It should be noted that, different from the first embodiment, the amplitude adjusting unit 523 in the present embodiment is connected to the rotating shaft 5211 through the elastic connection unit 525, the elastic connection unit 525 in the present embodiment includes an elastic connector 5251 and an elastic connection nut 5252, the elastic connector 5251 is coaxially sleeved outside the rotating shaft 5211, and sequentially includes a claw portion 52511 and a threaded portion 52512 which are transitionally connected from top to bottom along the axial direction thereof, the claw portion 52511 includes a plurality of claws 52513 which are annularly arranged along the axial circumference at equal intervals, an adjustment gap 52514 exists between two adjacent claws 52513, the diameter of the end of the claw portion 52511 which is far away from the threaded portion 52512 is smaller than the diameter of the end of the claw portion 52511 which is connected to the threaded portion 52512, and the elastic connection nut 5252 is fittingly sleeved outside the claw portion 52511 which is threadedly fittingly connected to the threaded portion 52512.

When the elastic connector 5251 and the rotating shaft 5211 are coaxially connected, the elastic connector 5251 is provided with the clamping claw portions 52511 and the threaded portion 52512 which are in transition connection, the rotating shaft 5211 is held by the clamping claw portions 52511, the larger the range of threaded connection fit is in the process of connecting the elastic connection nut 5252 and the threaded portion 52512, the larger the pressing force of the slope portions 6521 on the elastic connection nut 5252 on the clamping claw portions 52511 is, the smaller the adjusting gaps 65112 between the clamping claws 65111 are, the tighter the clamping of the clamping claw portions 52511 on the rotating shaft 5211 is, the more consistent the coaxiality of the elastic connector 5251 and the rotating shaft 5211 is through automatic adjustment, and the higher the precision of the super finishing is.

In the present embodiment, the amplitude adjustment unit 523 is disposed on the elastic connector 5251, is connected to the rotating shaft 5211 through the elastic connector 5251, and is rotated synchronously with the amplitude adjustment unit 523 by the rotation of the rotating shaft 5211, so that the structure of the rotating shaft 5211 can be prevented from being damaged by machining on the rotating shaft 5211.

In addition, the amplitude adjusting unit 523 may be a bump or a ball, and the ball has smaller direct friction, longer service life and less wear than the bump.

Example three:

FIG. 14 is a schematic structural view of a third embodiment of the vertical type super grinding machine for a spherical base surface of a bearing roller according to the present invention; as shown in fig. 14, in which the same or corresponding components as those in the second embodiment are denoted by the same reference numerals as those in the first embodiment, only the points different from the second embodiment will be described below for the sake of convenience. The third embodiment is different from the second embodiment shown in fig. 12 in that:

as shown in fig. 14 and 15, in the present embodiment, the amplitude adjusting unit 523 is a ball structure with a protrusion distance adjustable in a vertical direction.

Further, an installation groove 5250 is formed in one side of the central axis of the lower end of the elastic connection unit 525, the amplitude adjustment unit 523 is a ball structure with a protrusion distance adjustable along the vertical direction, the ball structure comprises a ball 5230 movably arranged in the installation groove 5250 and an adjustment screw 5231 horizontally arranged on the elastic connection unit 525, and a tapered end 5232 of the adjustment screw 5231 penetrates into the installation groove 5250 and is located on one side above the ball 5230.

In the second embodiment, the ball 5230 is in transmission connection with the rotating shaft 5211 through the elastic connector 5251 of the elastic connection unit 525, the adjusting screw 5231 is arranged in the mounting groove 5250 for placing the ball 5230, the contact between the tapered end 6311 on the adjusting screw 5231 and the ball 5230 is changed by utilizing the distance of the adjusting screw 5231 inserted into the mounting groove 5250, the distance of the ball 5230 protruding out of the mounting groove 5250 is controlled, the protruding distance of the amplitude adjusting unit 523 is adjustable, the amplitude of the oscillating mechanism is changed, the oscillating bounce distance of the oilstone is changed, the superfinishing machine is suitable for superfinishing of bearing roller ball base surfaces with different sizes, multiple purposes are realized, and the superfinishing cost of the bearing roller is reduced.

It should be emphasized that the present invention is not limited to the amplitude adjustment by the way of the ball and the adjusting screw, and any structure that satisfies the requirement of adjusting the protruding distance of the amplitude adjusting unit is within the protection scope of the present invention.

In addition, the scope of the present application does not exclude such an embodiment that the structure in which the amplitude adjustment unit 523 is adjustable may be directly provided on the rotation shaft 5211.

In this embodiment, as shown in fig. 16, the oscillator further includes an oscillator longitudinal sleeve 526 coaxially sleeved outside the oscillator longitudinal pin 524, the oscillator longitudinal sleeve 526 horizontally penetrates through the oscillator positioning pin 527 and the oscillator longitudinal pin 524, and the oscillator longitudinal pin 524 is provided with a waist-limiting groove 5244 in sleeved fit with the oscillator positioning pin 527; the lower end of the elastic connecting unit 525 is sleeved with a bearing 528, the bearing 528 is embedded in the upper part of the oscillator longitudinal sleeve 526, and the radial clearance between the limit waist groove 5244 and the oscillator positioning pin 527 is not less than the protruding distance of the amplitude adjusting unit 523.

It should be noted that, in order to ensure the oscillation stability of the oscillator longitudinal pin 524, in this embodiment, the oscillator longitudinal sleeve 526 is sleeved outside the oscillator longitudinal pin 524, and the structure of the oscillator longitudinal sleeve 526 is similar to a shaft sleeve, so that the sliding contact can be converted into the rotating contact, and the bouncing of the oscillator longitudinal pin 524 during the oscillation process can be reduced.

In order to guide the oscillator longitudinal pin 524, an oscillator positioning pin 527 is provided on the oscillator longitudinal sleeve 526 to guide and limit the telescopic oscillation of the oscillator longitudinal pin 524.

Example four:

FIG. 17 is a schematic structural diagram of a fourth embodiment of the vertical milling and superfinishing machine for a spherical base surface of a bearing roller according to the present invention; as shown in fig. 17, in which the same or corresponding components as those in the first to third embodiments are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first to third embodiments will be described below for the sake of convenience. The fourth difference of the embodiment is that:

as shown in fig. 17 and 18, in the present embodiment, the grinding wheel mechanism 4 includes a spindle 41 and a grinding wheel 42 rotating synchronously with the spindle 41, the grinding wheel 42 is coaxially connected to the spindle 41 through a centering assembly 43 having a conical structure, and an empty avoiding groove 421 is formed at an axis of the grinding wheel 42.

The axis of the spindle 41 of the grinding wheel mechanism 4 and the spherical base surface of the roller 10 are arranged at an included angle, the spindle 41 is mounted on an obliquely arranged mounting seat through a mounting plate, a sliding pair composed of a slide rail and a sliding block is arranged between the mounting plate and the mounting seat, the spindle 41 is adjusted to slide along the axis direction through a sliding mechanism composed of a lead screw and a lead screw nut on the mounting plate, in addition, the surface of the grinding wheel 42 contacting with the roller 10 for rough edge is an inwardly concave spherical curved surface, and when the grinding wheel 42 contacts with the spherical base surface of the bearing roller for rough grinding, the grinding wheel 42 contacts with the spherical base surface of the bearing roller in a line manner.

It is further described that the main shaft 41 and the grinding wheel 42 are coaxially connected through the centering assembly 43, wherein the structure and the working principle of the centering assembly 43 are similar to those of the elastic connection unit 525, the centering assembly 43 includes a centering connector 431 similar to the structure and the working principle of the elastic connector 5251 and a centering connection nut 432 similar to the structure of the elastic connection nut 5252, and in addition, the centering assembly further includes a connection screw 433 penetrating through the clearance groove 421, the grinding wheel 42 is in threaded connection with the main shaft 41, the connection is reinforced through the connection screw 433, the coaxiality between the grinding wheel 42 and the main shaft 41 can be perfectly ensured, and the machining precision is reduced due to the jumping of the grinding wheel 42 during rough grinding because the grinding wheel 42 is not coaxially arranged with the main shaft 41.

It should be further noted that, by providing the clearance groove 421, on one hand, the grinding wheel can be coaxially connected to the spindle of the grinding wheel mechanism through the tapered centering component, and on the other hand, the clearance groove is kept away from contacting the ball base surface of the bearing roller, so as to avoid the mutual interference between the rotation speed of the grinding wheel and the rotation speed of the bearing roller when the ball base surface of the bearing roller contacts the axis of the grinding wheel, thereby improving the machining precision of rough grinding.

The grinding wheel mechanism disclosed in the reference 1 is only to connect the grinding wheel with the spindle through a common claw structure, and during the process of rotating and grinding the grinding wheel, the eccentricity between the grinding wheel and the spindle can cause the contact part of the grinding wheel and the bearing roller to jump during the rotating and grinding process, so that the coarse grinding precision is reduced, and further the subsequent ultra-precision grinding is affected.

Example five:

FIG. 19 is a schematic structural diagram of a fifth embodiment of the vertical milling and grinding machine for the spherical basal plane of the bearing roller of the present invention; as shown in fig. 19, in which the same or corresponding components as those in the first to fourth embodiments are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first to fourth embodiments will be described below for the sake of convenience. The fifth embodiment is different in that:

as shown in fig. 19, in this embodiment, the rotating mechanism 3 includes a lower driving assembly 31 for driving the lower working plate 21 to rotate and an upper driving assembly 32 for driving the upper working plate 23 to ascend and descend and rotate, a central shaft 310 protruding upward from the lower working plate 21 and coaxially disposed with the lower working plate 21 is disposed at an axis of the lower driving assembly 31, and a positioning connector 320 coaxially sleeved and matched with the central shaft 310 is disposed on the upper driving assembly 32.

It should be noted that, in the present application, the lower driving assembly 31 is an electric spindle structure, which is coaxially connected to the lower working plate 21 and drives the lower working plate 21 to rotate, and the upper driving assembly 32 includes an electric ball screw unit 321 and an electric spindle unit 322, wherein the electric ball screw unit 321 drives the electric spindle unit 322 to lift and lower along a vertical direction, the electric spindle unit 322 is coaxially connected to the upper working plate 23 and drives the upper working plate 23 to rotate, and a rotation direction of the upper working plate 23 is opposite to that of the lower working plate 21, and the electric spindle structure of the lower driving assembly 31, the electric ball screw unit 321, and the electric spindle unit 322 are all mature mechanical structures, and therefore detailed descriptions thereof are omitted herein.

It is further described that the central shaft 320 is coaxially connected with the electric spindle of the lower driving assembly 31, but the connection portion thereof realizes that the central shaft 320 does not rotate along with the electric spindle by arranging a bearing, and the positioning connection member 320 synchronously ascends and descends along with the electric spindle in the upper driving assembly 32 and is coaxially arranged with the electric spindle in the upper driving assembly 32, the electric spindle in the upper driving assembly 32 descends downwards, the lower working disc 21 is used for bearing the rollers 10, the upper working disc 23 and the lower working disc 21 are matched and pressed against the rollers 10 positioned therebetween, the coaxial arrangement between the lower working disc 21 and the upper working disc 23 is realized by the coaxial nesting of the central shaft 320 and the positioning connection member 320, the coverage and the clamping force of each roller 10 on the lower working disc 21 and the upper working disc 23 are consistent, therefore, during the superfinishing process of the ball base surface of each roller 10, the influence of the reduction of the machining accuracy due to the runout caused by the difference in the coaxiality between the lower operating disk 21 and the upper operating disk 23 can be avoided.

In the comparison document 1, the upper working disc 23 is not centered by the central shaft and the positioning connection member in the descending process, and the eccentric range is enlarged by the reverse rotation of the lower driving assembly 31 and the upper driving assembly 32, which finally affects the precision of the ultra-precision grinding process.

In addition, since the separation disc 22 is also coaxially fitted over the central shaft 320, the coaxiality between the lower working disc 21, the separation disc 22, and the upper working disc 23 can be maintained at an optimum level, thereby improving the precision of the ultra-precision polishing process.

Example six:

FIG. 21 is a schematic structural view of a sixth embodiment of the vertical milling and grinding machine for a spherical base surface of a bearing roller according to the present invention; as shown in fig. 20, in which the same or corresponding components as those in embodiment five are denoted by the same reference numerals as those in embodiment one, only the points of difference from embodiment five will be described below for the sake of convenience. The sixth embodiment differs in that:

as shown in fig. 20 to 24, in the present embodiment, two sets of isolation discs 22 are disposed in parallel and vertically symmetrical along a horizontal plane, and are coaxially sleeved on the central shaft 310, and a plurality of isolation grooves 221 pointing to the circle centers of the isolation discs are equally spaced on the outer circumference of the isolation discs 22, the isolation groove 221 on the isolation disc 22 above covers the part above the axis of the corresponding roller 10, the isolation groove 221 on the isolation disc 22 below covers the part below the axis of the corresponding roller 10, the plane where the axis of the roller 10 is located and the symmetrical plane of the isolation disc 22 are located on the same plane, and the covering parts 222 at the contact positions of the isolation grooves 221 and the roller 10 are both arranged in a slope.

It should be noted that, in the present application, two sets of separation discs 22 are provided, and two sets of separation discs 22 that are parallel to each other and symmetrically provided are matched to separate the rollers 10 from the separation discs 22, so that the rollers 10 are circumferentially arranged on the separation discs 22 around the axis of the separation discs 22, and the axes of the rollers 10 all point to the center of the separation discs 22, and, compared with the separation disc structure in the comparison document 1, the separation discs 22 of the present application are only coaxially sleeved on the central shaft 310, the upper and lower sets of separation discs 22 are overlapped, and the separation discs 22 are not connected with the lower working disc 21 or the upper working disc 23, the rotational power of the separation discs 22 completely comes from the fact that the rollers 10 rotate when the rollers 10 receive the friction force of the lower working disc 21 and the upper working disc 23, the rollers 10 rotate to generate the advancing driving force on the lower working disc 21, and the separation discs 22 are driven to rotate, so as to realize the revolution of the rollers 10, the revolution of the roller 10 is stable, so when the bearing roller sphere base surface is ground with the grinding wheel mechanism 4 or the super-precision mechanism 2, the bearing roller does not directly pass over the grinding wheel mechanism 4 or the super-precision mechanism 2 along with the active rotation of the lower working disc 21 or the upper working disc 23, but continuously grinds the grinding wheel mechanism 4 and the super-precision mechanism 2 until the grinding is in place, and then the bearing roller is transferred to the next process through the separation disc 22, so that the roller 10 can be completely ground in place.

The separation disc in the comparison document 1 is connected to the lower working disc and rotates with the lower working disc, that is, the power of the revolution of the bearing roller comes from the rotation of the lower working disc, so that in the process of grinding the bearing roller with the grinding wheel mechanism and the superfinishing mechanism, no matter whether the bearing roller is ground in place, the separation disc can drive the bearing roller to pass over the grinding wheel mechanism and the superfinishing mechanism to enter the next processing procedure, and the grinding processing precision of the ball base surface of the bearing roller does not reach the preset processing precision.

In addition, when the isolation grooves 221 on the isolation discs 22 are arranged to separate the rollers 10, the coating portions 222 which coat the rollers 10 on the isolation grooves 221 are arranged in a slope manner, so that after the rollers 10 enter the isolation grooves 221 of the two groups of isolation discs 22 which are parallel up and down, the centering can be automatically completed by the slope arrangement of the coating portions 222 of the isolation grooves 221, the axes of the rollers 10 are located on the symmetrical surfaces of the two groups of isolation discs 22, the walking paths of each roller 10 in the machining process can be ensured to be consistent, and the precision after machining is also consistent.

Example seven:

FIG. 25 is a schematic structural diagram of a seventh embodiment of the vertical milling and grinding machine for a spherical base surface of a bearing roller according to the present invention; as shown in fig. 25, in which the same or corresponding components as those of the first to sixth embodiments are denoted by the same reference numerals as those of the first embodiment, only the differences from the first to sixth embodiments will be described below for the sake of convenience. The seventh embodiment differs in that:

as shown in fig. 25 and 26, in the present embodiment, the feeding mechanism 8 and the discharging mechanism 9 are included, and the feeding mechanism 8 and the discharging mechanism 9 are both disposed adjacent to one side of the working disc mechanism 2, wherein the feeding mechanism 8 includes an obliquely disposed feeding pipe 81, a material guiding pipe 82 horizontally pointing to the isolation slot 221, and a material pushing cylinder 83 disposed opposite to the material guiding pipe 82, after the roller 10 enters the material guiding pipe 82 along the oblique direction of the feeding pipe 81, the roller 10 is pushed into the corresponding isolation slot 221 by the material pushing cylinder 83 to achieve feeding, the discharging mechanism 9 is a discharging slot plate obliquely downward, and when the roller 10 rotates to the discharging mechanism 9, the roller 10 will automatically separate from the working disc mechanism 2.

It should be noted here that the roller 10 is a tapered structure, and one end of the roller is thick in the axial direction, and the other end is thin, so that the bearing end of the lower working disc 21 of the bearing roller 10 and the pressing end of the upper working disc 23 of the pressing roller 10 are both structures with a middle protrusion and a low periphery, and the space where the bearing end of the lower working disc 21 and the pressing end of the upper working disc 23 are matched is also in a shape following with the taper of the roller 10.

The thin one end of roller 10 is towards the axle center of working disc mechanism 2, in the in-process that lower working disc 21 and upper working disc 23 rotate, roller 10 has a power of keeping away from working disc mechanism 2 axle center all the time, therefore, this one end of the ball basal plane of roller 10 after feeding through feed mechanism 8 is at the in-process that does not grind the processing, all need set up the striker plate on roller 10's moving path and block it, avoid it to drop from working disc mechanism 2, and at the in-process of grinding, roller 10 blocks by emery wheel and oilstone respectively, just also need not to set up the striker plate, when roller 10 shifts unloading mechanism 9 department, roller 10 loses and blocks spacingly, will directly drop from working disc mechanism 2, realize automatic discharging.

The working process is as follows:

the feeding mechanism 8 feeds the rollers 10 into the isolation grooves 221 on the isolation disc 22, when the rollers are fed, the thin ends of the rollers 10 point to the axis of the working disc mechanism 2, then the rollers 10 rotate in the isolation grooves 221 by means of the rotation of the lower working disc 21 and the upper working disc 23, the isolation disc 22 is driven to revolve along the processing path of the rollers 10 by the rotation of the rollers 10, the rollers 10 are transferred to the grinding wheel mechanism 4, the grinding wheel 42 on the grinding wheel mechanism 4 performs rough grinding processing on the ball base surfaces of the bearing rollers, after the ball base surfaces of the bearing rollers meet the rough grinding processing requirement, the rollers 10 move to the superfinishing mechanism 5 across the grinding wheel mechanism 4, the oilstone in the superfinishing mechanism 5 is oscillated by the oscillating assembly 52, the oilstone moves in a reciprocating oscillating manner in the vertical direction of the ball base surfaces of the bearing rollers, and the 8-shaped superfinishing processing of the ball base surfaces of the bearing rollers is realized by matching with the rotation and revolution of the rollers 10, and then the roller 10 is discharged and output from the discharging mechanism 9.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A vertical grinding and super-grinding machine for a spherical basal surface of a bearing roller comprises a vertical machine tool body (1), wherein a horizontal working platform (11) is arranged on the machine tool body (1), an adjusting platform (12) is arranged above the working platform (11), a horizontally placed working disc mechanism (2) is arranged at the central position of the adjusting platform (12), the working disc mechanism (2) is installed on a vertically arranged rotating mechanism (3), a grinding wheel mechanism (4) and at least one group of super-precision mechanisms (5) are sequentially arranged along the circumferential direction of the working disc mechanism (2), the working disc mechanism (2) comprises a lower working disc (21), an isolating disc (22) and an upper working disc (23) which are sequentially and coaxially arranged along the vertical direction from bottom to top, a plurality of rollers (10) to be processed are uniformly distributed on the isolating disc (22) along the circumferential direction of the isolating disc, and the rollers (10) synchronously revolve along with the isolating disc (22), meanwhile, the rotation is realized by means of the cooperation of the lower working disc (21) and the upper working disc (23), and the superfinishing mechanism (5) is characterized by comprising an installation seat (50), and a superfinishing assembly (51), an oscillating assembly (52) and a resetting assembly (53) which are installed on the installation seat (50);

the superfinishing assembly (51) comprises a coaming (511) installed on the installation seat (50) and at least one group of superfinishing units (512), the coaming (511) is movably arranged relative to the installation seat (50) along the vertical direction, the superfinishing units (512) are arranged along one side of the coaming (511) close to the ball base surface of the roller to be superfinished, and the reset assembly (53) which is always in interference fit with the installation seat (50) is installed on the edge of the coaming (511) on the other side relative to the superfinishing units (512);

the oscillating assembly (52) is vertically installed on the installation seat (50), an oscillating end (520) below the oscillating assembly is always abutted to the upper end face of the enclosing plate (511) and pushes the enclosing plate (511) and the superfinishing assembly (51) on the enclosing plate to oscillate in a fixed amplitude mode, and the enclosing plate (511) and the superfinishing assembly (51) after oscillation reset through the resetting assembly (53).

2. The vertical grinding and super-grinding machine for the spherical base surface of the bearing roller is characterized in that a clamping groove (501) is formed in the mounting seat (50), a clamping block (502) correspondingly clamped with the clamping groove (501) is arranged on the other side edge of the enclosing plate (511) opposite to the super-finishing unit (512), the clamping groove (501) and the clamping block (502) are both arranged in a curved shape in the length direction and are arranged in parallel with the moving path of the roller (10), the clamping groove (501) is matched with the width of the clamping block (502), and the height of the clamping groove (501) in the oscillation direction of the enclosing plate (511) is larger than that of the clamping block (502); a plurality of positioning grooves (5111) are uniformly distributed on the lower end face of the enclosing plate (511) along the length direction of the clamping block (502), a plurality of reset components (53) are correspondingly arranged in the corresponding positioning grooves (5111) one by one, and each reset component (53) comprises a guide sleeve (531) vertically and slidably arranged in the corresponding positioning groove (5111) and an elastic part (532) which is arranged in the guide sleeve (531) and is in interference fit with the upper end face of the corresponding positioning groove (5111).

3. The vertical grinding and superfinishing machine for the spherical basal surfaces of bearing rollers according to claim 2, wherein a plurality of groups of superfinishing units (512) are uniformly mounted on the edge of the coaming (511), and each superfinishing unit (512) comprises:

the oilstone clamp (5121) is horizontally and fixedly arranged on the coaming (511), and a sliding groove (5122) pointing to the bearing roller is formed in the oilstone clamp;

the oilstone (5123) is slidably mounted in the sliding groove (5122), and a working end (5124) of the oilstone (5123), which extends out of the sliding groove (5122) and is abutted against the ball base surface of the roller, is arranged in a curved shape and is overlapped with the curved processing path of the ball base surface of the roller (10);

the push plate (5125), the push plate (5125) is arranged at the rear side of the oilstone (5123), and the push plate (5125) is arranged in the corresponding sliding groove (5122) in a sliding manner; and

a push driving piece (5126), wherein the push driving piece (5126) is installed below the enclosing plate (511) and adjusts the length of the oilstone (5123) extending out of the sliding groove (5122).

4. The vertical type grinding and superfinishing machine for the spherical basal surfaces of the bearing rollers as claimed in claim 3, wherein the working ends (5124) of the oilstones (5123) of the superfinishing units (512) in multiple groups are arranged in a curved shape in a side-by-side transition mode and are arranged in parallel with the length direction of the fixture block (502).

5. The vertical type super grinding machine for the ball base surface of the bearing roller as claimed in claim 1, wherein the oscillating assembly (52) comprises a rotary driving device (521) arranged perpendicular to the surrounding plate (511), an oscillator seat (522) coaxially sleeved outside a rotary shaft (5211) of the rotary driving device (521), an amplitude adjusting unit (523) installed below the rotary shaft (5211) and synchronously rotating with the rotary shaft (5211), and an internal oscillator longitudinal pin (524) coaxially installed on the oscillator seat (522), wherein the oscillator longitudinal pin (524) is located below the amplitude adjusting unit (523), the oscillator longitudinal pin (524) comprises a working end portion (5241) and a matching end portion (5242) respectively arranged at two axial ends of the oscillator longitudinal pin, the working end portion (5241) and the surrounding plate (511) are always arranged in an interference manner, and the matching end portion (5242) is convexly provided with the amplitude adjusting unit (523) in a discontinuous interference manner along a circumferential direction The projection a (5243).

6. The vertical bearing roller ball base grinding machine as claimed in claim 5, wherein the oscillating assembly (52) further comprises an elastic connecting unit (525) coaxially sleeved outside the rotating shaft (5211) through a tapered structure.

7. The vertical grinding and super grinding machine for the basal surface of the bearing roller ball as claimed in claim 6, wherein the amplitude adjusting unit (523) is a bump or a ball with a fixed protruding distance and arranged on the lower end part of the elastic connecting unit (525).

8. The vertical milling and grinding machine for the ball base surface of the bearing roller as claimed in claim 6, wherein the lower end of the elastic connection unit (525) is provided with a mounting groove (5250) at one side of the central axis thereof, the amplitude adjustment unit (523) is a ball structure with a protrusion distance adjustable along the vertical direction, the ball structure comprises a ball (5230) movably arranged in the mounting groove (5250) and an adjustment screw (5231) horizontally arranged on the elastic connection unit (525), and the tapered end (5232) of the adjustment screw (5231) penetrates into the mounting groove (5250) and is positioned at one side above the ball (5230).

9. The vertical type grinding and super-grinding machine for the ball base surface of the bearing roller is characterized in that the rotating mechanism (3) comprises a lower driving assembly (31) for driving the lower working disc (21) to rotate and an upper driving assembly (32) for driving the upper working disc (23) to lift and rotate, a central shaft (310) which protrudes upwards from the lower working disc (21) and is coaxially arranged with the lower working disc (21) is arranged at the axis of the lower driving assembly (31), and a positioning connecting piece (320) which corresponds to the central shaft (310) and is coaxially sleeved and matched with the central shaft (310) is arranged on the upper driving assembly (32).

10. The vertical grinding and super-grinding machine for the ball base surface of the bearing roller as claimed in claim 9, wherein the isolation discs (22) are arranged in two groups in parallel along a horizontal plane and are vertically symmetrical, the two groups are coaxially sleeved on the central shaft (310), a plurality of isolation grooves (221) pointing to the circle centers of the two groups are uniformly distributed on the outer circumferences of the two groups at equal intervals, the isolation groove (221) on the isolation disc (22) above covers the part above the axis of the corresponding roller (10), the isolation groove (221) on the isolation disc (22) below covers the part below the axis of the corresponding roller (10), the plane where the axis of the roller (10) is located and the symmetrical surface of the isolation disc (22) are located on the same plane, and the covering parts (222) where the isolation grooves (221) are in contact with the roller (10) are both arranged in a slope.