CN111300257A

CN111300257A - High-precision oil-containing bearing sleeve machining equipment and method

Info

Publication number: CN111300257A
Application number: CN202010224375.1A
Authority: CN
Inventors: 宦有强; 李峰; 程建平
Original assignee: Shenzhen Guanqiang Powdered Metal Products Co ltd
Current assignee: Shenzhen Guanqiang Powdered Metal Products Co ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-06-19
Anticipated expiration: 2040-03-26
Also published as: CN111300257B

Abstract

The invention relates to high-precision oil-containing bearing sleeve processing equipment and a method, which relate to the technical field of powder metallurgy bearing processing and comprise a machine body, a vibration seat arranged at the bottom of the machine body, a vibration box arranged at the top of the machine body, a vibration mechanism arranged between the vibration seat and the vibration box and a dispersion mechanism arranged on one side of the vibration seat and used for separating grinding materials and workpieces, wherein an annular vibration cavity for mixing the workpieces and the grinding materials is formed in the vibration box, the vibration mechanism is used for driving the vibration box to vibrate so that a mixture of the workpieces and the grinding materials is conveyed around the vibration cavity in a clockwise or anticlockwise rotating mode and polished, and a discharge hole is formed in one side of the vibration box. The invention has the effect of improving the discharging efficiency and the separating efficiency.

Description

High-precision oil-containing bearing sleeve machining equipment and method

Technical Field

The invention relates to the technical field of powder metallurgy bearing processing, in particular to high-precision oil-containing bearing sleeve processing equipment and method.

Background

Currently, oil-impregnated bearings, namely Porous bearings (Porous bearings), are sintered bodies made of metal powder as a main raw material by a powder metallurgy method, and the sintered bodies are impregnated with 10 to 40 volume percent of lubricating oil by the porosity of the sintered bodies, and can be used in a self-lubricating state. With the continuous development of the oil-retaining bearing industry, more and more industries and enterprises apply the oil-retaining bearing.

The basic structure of the existing bearing comprises an inner ring, an outer ring, a rolling body (steel ball or roller) and a retainer. The inner wall of the outer ring is required to roll or slide relative to the rolling body (steel ball or roller), so that the outer ring is required to be polished in the processing process of the bearing sleeve, thereby reducing the friction force between the bearing sleeve and the rolling body and improving the energy conversion efficiency.

Chinese utility model publication No. CN209350049U discloses a vibratory finishing machine, which can improve the finishing efficiency and finishing effect of metal workpieces; the vibration box comprises a vibration seat, a vibration motor, a plurality of groups of vibration springs and a vibration box, wherein the bottom of the vibration motor is fixed in the center of the top of the vibration seat, the output end of the top of the vibration motor is connected with the center of the bottom of the vibration box, the tops of the plurality of groups of vibration springs are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the vibration box, the bottoms of the plurality of groups of vibration springs are respectively connected with the left front side, the left rear side, the right front side and the right rear side of the top of the vibration seat, a vibration cavity is arranged in the vibration box; the cleaning device further comprises a rotating motor, a rotating shaft, a rotating box, a rotating column, a base, a cleaning motor, a cleaning shaft, a plurality of groups of cleaning blades, two groups of supporting frames and a cleaning box, wherein the bottom of the rotating motor is fixed at the top of the vibrating motor. The utility model discloses a through mix metallurgical work piece and metal or alloy abrasive material in the vibration intracavity to drive the vibration of vibrating bin through vibrating motor and make the metallurgical work piece surface of abrasive material friction, thereby reach the effect of polishing.

The above prior art solutions have the following drawbacks: the existing polishing machine needs to take out a workpiece and an abrasive material through manpower after polishing is finished, and needs to use a sieve and the like through the manpower to separate the abrasive material from the workpiece, so that time and labor are wasted, and the discharging efficiency and the separating efficiency are lower.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide high-precision machining equipment for the oil-retaining bearing sleeve, which can improve the discharging efficiency and the separating efficiency.

The above object of the present invention is achieved by the following technical solutions:

a high-precision oil-containing bearing sleeve processing device comprises a machine body, a vibration seat arranged at the bottom of the machine body, a vibration box arranged at the top of the machine body, a vibration mechanism arranged between the vibration seat and the vibration box, and a dispersing mechanism arranged on one side of the vibration seat and used for separating grinding materials and workpieces, wherein an annular vibration cavity for mixing the workpieces and the grinding materials is formed in the vibration box, the vibration mechanism is used for driving the vibration box to vibrate so that the mixture of the workpieces and the grinding materials can be conveyed around the vibration cavity in a clockwise or anticlockwise rotating mode and polished, and a discharge hole is formed in one side of the vibration box;

the dispersing mechanism comprises a channel changing assembly arranged on the vibration box, a separating assembly arranged on the vibration box and positioned at the side of the discharge port and a collecting assembly arranged on the vibration seat, and the channel changing assembly is used for realizing the communication between the discharge port and the vibration cavity;

the separating assembly comprises a plurality of sieve rods connected with the edge of the discharge port, a guide rail connected with one end of each sieve rod and a storage box arranged below the sieve rods, the maximum distance between the gaps between the adjacent sieve rods is smaller than the minimum width of a workpiece and larger than the minimum width of abrasive materials, and the sieve rods are inclined and are lower than the other end when being far away from one end of the discharge port.

Through adopting above-mentioned technical scheme, vibration mechanism is used for driving the vibration of vibrating bin so that the mixture of bearing housing and abrasive material carries and polishes around vibration chamber clockwise or anticlockwise rotation, rethread lane change subassembly realizes the intercommunication of discharge gate and vibration chamber after the polishing is accomplished, bearing housing and abrasive material arrive the isolating component department along the discharge gate, because the maximum interval in clearance between the adjacent sieve stick is less than the minimum width of work piece and is greater than the minimum width of abrasive material, with this through a plurality of sieve stick filtration abrasive material and bearing housing, the abrasive material is collected and is carried out used repeatedly to the receiver, the sieve stick is the slope form and its one end of keeping away from the discharge gate is less than the other end, with this make the bearing housing slide to the guide rail along the sieve stick, and the guide rail transports the bearing housing to collection department alone, thereby realize the separation of abrasive material and bearing housing, and then promote ejection of compact.

The present invention in a preferred example may be further configured to: a plurality of the sieve stick is arc distribution, and is located the sieve stick of a plurality of sieve stick middle zone its height in the cross-section along sieve stick width direction and is less than the sieve stick at edge.

Through adopting above-mentioned technical scheme, the sieve stick that is located a plurality of sieve stick intermediate regions highly is less than the sieve stick of edge on the cross-section along sieve stick width direction to this makes the bearing housing gather together and slide to the guide rail along a plurality of sieve stick intermediate regions and carries, avoids the bearing housing to drop and influence the collection of bearing housing from the sieve stick of edge region.

The present invention in a preferred example may be further configured to: the width of the gap between adjacent sieve bars decreases progressively along the direction away from the discharge hole.

By adopting the technical scheme, the width of the gap between the adjacent sieve bars decreases progressively along the direction away from the discharge port, and as the sieve bars are closer to the side of the discharge port, the proportion of the abrasive in the mixture borne by the sieve bars is higher, the gap between the sieve bars close to the side of the discharge port needs to be enlarged, and the separation of the abrasive is accelerated; and because the bearing housing is bigger with the contained angle of the centre of a circle line of two adjacent sieve sticks, the component of the gravity of bearing housing and sieve stick, friction is bigger promptly, and its resistance of transmission is bigger, consequently reduces the clearance that a plurality of sieve sticks kept away from discharge gate side, can gather together the bearing housing, avoids the bearing housing card to influence the transmission in the clearance of adjacent sieve stick.

The present invention in a preferred example may be further configured to: the one end that the discharge gate was kept away from to the sieve stick is articulated with the guide rail, lean on discharge gate side to be provided with the support that supplies the sieve stick to place on the organism, the sieve stick slides along the distribution direction of a plurality of sieve sticks with the support and is connected, separator assembly still including slide set up slider on the organism, with the flexible rope of stranded that the slider is connected, a plurality of elastic component that set up between adjacent sieve stick, two adjacent sieve sticks, stranded are connected respectively to every elastic component flexible rope connects each sieve stick respectively, the slider drives the biggest clearance of a plurality of sieve stick synchronous slip and reduction adjacent sieve stick when sliding along a plurality of sieve stick planes of symmetry orientation and the sunken opposite direction of a plurality of sieve stick arcs.

Through adopting above-mentioned technical scheme, when the slider slides along a plurality of sieve stick symmetric surfaces orientation and the sunken opposite direction of a plurality of sieve stick arcs, the slider drives flexible rope, and a plurality of sieve sticks of flexible rope pulling slide in step to this reduces the maximum clearance of adjacent sieve stick, and when the size of bearing housing separated reduced, the maximum clearance that corresponds adjacent sieve stick reduced, with this avoid the bearing housing to drop, thereby enlarge dispersion mechanism's application scope, promote the suitability.

The present invention in a preferred example may be further configured to: the sieve stick rotates with the organism to be connected, separator assembly is still including setting up annular drive belt, the driven driving piece of drive belt on the organism, the drive belt is snakelike each sieve stick of walking around respectively, drives turning to of each sieve stick synchronous rotation and adjacent sieve stick opposite when the drive belt transmission.

Through adopting above-mentioned technical scheme, the drive belt drives each sieve stick synchronous rotation when the transmission, because the drive belt is snakelike each sieve stick of walking around respectively to this makes turning to of adjacent sieve stick opposite, thereby makes the abrasive material whereabouts of card between adjacent sieve stick, with this elimination jam condition, sieve stick disturbs the bearing housing on it when rotating simultaneously, clears away the transmission of piece powder etc. on the bearing housing and accelerate the bearing housing, promotes separation and discharging efficiency.

The present invention in a preferred example may be further configured to: the center department that lies in the vibration chamber on the vibrating bin is provided with the center post, the subassembly of changing the way includes and changes the way board with discharge gate opening border side articulated, and the rotation axis vertical distribution of changing the way board just when changing the way board and rotate its border and center post week side wall and be connected so that the discharge gate intercommunication vibration chamber.

By adopting the technical scheme, the complete annular cavity structure is formed when the lane changing plate is spliced with the inner wall of the vibration cavity at the side of the discharge port, so that the internal circulation of a mixture of a workpiece and an abrasive is realized, and the polishing efficiency is improved; and when the lane changing plate is connected with the central column, the discharge hole is communicated with the vibration cavity, so that the bearing sleeve and the abrasive in the vibration cavity are separated from the vibration cavity to the dispersing mechanism to separate the abrasive from the workpiece, and the discharging efficiency is improved.

The present invention in a preferred example may be further configured to: the lane changing plate is arc-shaped and consistent with the radian of the inner wall of the outer side of the vibration cavity.

Through adopting above-mentioned technical scheme, the lane change board is the arc and unanimous with vibration chamber outside inner wall radian to this makes the mixture of bearing housing and abrasive material slide along curved vibration intracavity wall and lane change inboard wall when vibration intracavity inner loop, makes things convenient for abrasive material and the relative roll of lane change inboard wall, keeps unchangeable with this width that makes transmission passage, avoids the abrasive material to extrude each other and makes the wearing and tearing aggravation of lane change board, with this life who prolongs the lane change board.

The present invention in a preferred example may be further configured to: the storage box top is provided with curved baffle, slides to the storage box along its concave cambered surface when the abrasive material drops to the baffle along the clearance of adjacent sieve stick in, and a plurality of filtration pores have been seted up downwards in the slope of the concave arc department of baffle, and the maximum width in filtration pore is less than the minimum width of abrasive material, the convex arc side of baffle is provided with the waste material fill of accomodating the powder.

By adopting the technical scheme, the guide plate is in a concave arc shape so as to guide the grinding materials into the containing box; and the concave arc of the guide plate is obliquely downwards provided with a plurality of filtering holes, so that the powder in the grinding materials is separated by the impact force when the grinding materials fall while the grinding materials are guided to be transmitted, and the grinding materials are convenient to reuse.

The present invention in a preferred example may be further configured to: go to the vertical right angle groove of having seted up in one side of diversion board on the center post, the diversion board is pegged graft with right angle groove when rotating to center post department and is cooperated so that its surface flushes with center post week lateral wall, the top of diversion board is provided with the shell fragment, is connected with rings on the shell fragment, the top of center post is provided with and pegs graft complex stand with rings, the bolt with the shell fragment butt is worn to be equipped with by the screw thread on the center post, and the bolt is the contained angle with the shell fragment.

Through adopting above-mentioned technical scheme, the lane change board rotates to when pegging graft with the right angle groove, the surface and the side wall of center post week of lane change board flush, with this roughness that promotes vibration intracavity wall, avoid bearing housing or abrasive material to block, the cooperation of pegging graft through rings and stand realizes the locking to the lane change board, and make the shell fragment tighten through screwing up the bolt, with this make the lane change board support tight right angle inslot wall, thereby avoid the lane change board not hard up and produce the gap that supplies work piece or abrasive material to reveal when the vibration, influence discharging efficiency.

The second purpose of the invention is to provide a high-precision oil-containing bearing bush machining method, which is applied to the high-precision oil-containing bearing bush machining equipment and can improve the separation efficiency of a workpiece and an abrasive material.

A high-precision oil-retaining bearing sleeve processing method comprises the following steps:

s100: changing the gap of the sieve rod according to the size of the workpiece;

s200: mixing a workpiece and an abrasive material, then placing the mixture into a vibration cavity, and switching a lane changing plate to a position where the workpiece is abutted against the outer side wall of the vibration cavity;

s300: starting the vibration mechanism, driving the mixture of the workpiece and the abrasive to rotate clockwise or anticlockwise around the annular vibration cavity and carrying out vibration polishing, wherein the workpiece and the abrasive are in an internal circulation state;

s400: after polishing, rotating the lane changing plate to be connected with the central column, and enabling the mixture of the workpiece and the abrasive to reach the discharge port along a channel between the vibration cavity and the lane changing plate and slide to the sieve rod;

s500: the sieve rod separates the abrasive from the workpiece, and the abrasive is transferred to a storage box for reuse;

s600: and collecting the separated workpieces.

By adopting the technical scheme, the gap of the sieve rod is changed according to the size of the workpiece, so that the grinding materials can be separated as much as possible while the gap of the sieve rod filters the bearing sleeve, the separation efficiency is accelerated, and the separation efficiency of the workpiece and the grinding materials is improved; the internal circulation and the discharging of the workpiece and the grinding materials are realized through the lane changing plate, so that the discharging efficiency of the workpiece is improved; the grinding materials are transferred to the storage box for repeated use, so that the utilization rate of resources is improved, and the environmental protection performance is improved.

In summary, the invention includes at least one of the following beneficial technical effects:

after polishing, the channel changing assembly is used for communicating the discharge port with the vibration cavity, the bearing sleeve and the grinding materials reach the separation assembly along the discharge port, the maximum distance of gaps between adjacent sieve rods is smaller than the minimum width of a workpiece and larger than the minimum width of the grinding materials, so that the grinding materials and the bearing sleeve are filtered through the sieve rods, the grinding materials are collected to the storage box for reuse, the sieve rods are inclined, one end, far away from the discharge port, of each sieve rod is lower than the other end, so that the bearing sleeve slides to the guide rail along the sieve rods, the guide rail is used for conveying the bearing sleeve to the collection position independently, the separation of the grinding materials and the bearing sleeve is realized, and the discharge efficiency and the separation efficiency are further improved;

when the sliding block slides along the symmetrical surfaces of the sieve rods in the direction opposite to the arc-shaped concave direction of the sieve rods, the sliding block drives the flexible ropes, the flexible ropes pull the sieve rods to synchronously slide, so that the maximum gap between the adjacent sieve rods is reduced, and when the size of the separated bearing sleeve is reduced, the maximum gap between the adjacent sieve rods is correspondingly reduced, so that the bearing sleeve is prevented from falling off, the application range of the dispersing mechanism is expanded, and the applicability is improved;

the drive belt drives each sieve stick synchronous rotation when the transmission, because the drive belt is snakelike each sieve stick of walking around respectively to this turns to of making adjacent sieve stick opposite, thereby makes the abrasive material whereabouts of card between adjacent sieve stick, with this elimination jam condition, sieve stick disturbs the bearing housing on it when rotating simultaneously, accelerates the transmission of bearing housing with this, promotes separation and discharging efficiency.

Drawings

FIG. 1 is a schematic overall structure diagram of the first embodiment;

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 3 is a partial structural view of the first embodiment, mainly showing the sieve rod;

FIG. 4 is an enlarged partial schematic view of portion B of FIG. 3;

FIG. 5 is a partial schematic structural view of the first embodiment, mainly showing the transmission belt.

Reference numerals: 1. a body; 11. a support; 111. a strip-shaped hole; 12. a vibration seat; 13. a vibration box; 131. a central column; 132. a column; 133. a right-angle groove; 14. a vibration chamber; 15. a discharge port; 16. a vibration mechanism; 161. a vibration motor; 2. a lane change assembly; 21. a lane-changing plate; 22. a spring plate; 23. a hoisting ring; 24. a bolt; 3. a separation assembly; 31. a sieve bar; 311. a rotating shaft; 32. a guide rail; 33. a storage box; 34. a slider; 341. a flexible cord; 342. an elastic member; 35. a transmission belt; 36. a drive member; 361. a servo motor; 4. a collection assembly; 41. a guide plate; 42. filtering holes; 43. a waste hopper.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows: referring to fig. 1, the high-precision oil-retaining bearing bush processing equipment disclosed by the invention comprises a machine body 1, a vibration seat 12 arranged at the bottom of the machine body 1, a vibration box 13 arranged at the top of the machine body 1, a vibration mechanism 16 arranged between the vibration seat 12 and the vibration box 13, and a dispersion mechanism arranged on one side of the vibration seat 12 and used for separating grinding materials from workpieces. The vibration box 13 is internally provided with a circular ring-shaped vibration cavity 14 for mixing the workpiece and the abrasive, the vibration mechanism 16 comprises a vibration motor 161 arranged on the vibration seat 12, the vibration motor 161 and the vibration seat 12 are fixed through screws, and when the vibration motor 161 is started, the vibration box 13 is driven to vibrate so as to enable the mixture of the workpiece and the abrasive to rotate clockwise or anticlockwise around the vibration cavity 14 for conveying and polishing. A discharging port 15 is formed in one side of the vibration box 13, the discharging port 15 is square, and the bottom wall of the discharging port 15 is flush with the bottom wall of the vibration cavity 14, so that the grinding materials and the bearing sleeve can be discharged conveniently. A cylindrical central column 131 is disposed at the center of the vibration chamber 14 on the vibration box 13, and the central column 131 and the vibration box 13 are integrally formed.

The dispersion mechanism comprises a lane changing component 2 arranged on the vibration box 13, and the lane changing component 2 is used for realizing the communication between the discharge port 15 and the vibration cavity 14. The lane changing component 2 comprises a lane changing plate 21 hinged with the opening edge side of the discharge hole 15, and the rotation axes of the lane changing plate 21 are vertically distributed. When polishing operation, the side border that the lane change board 21 kept away from its articulated side supports with discharge gate 15 one side inner wall butt so that lane change board 21 and the concatenation of vibration chamber 14 inner wall, and then form complete annular cavity structure to this inner loop that realizes the mixture of work piece and abrasive material promotes polishing efficiency. After the polishing operation is completed, when the diversion plate 21 rotates, the edge of the diversion plate is connected with the peripheral side wall of the central column 131 so that the discharge port 15 is communicated with the vibration cavity 14, the grinding materials and the bearing sleeve are conveniently separated from the vibration cavity 14 to carry out the next process, namely the grinding materials are conveyed to a dispersion mechanism to be separated from the workpiece, and the discharging efficiency is improved.

The lane-changing plate 21 is arc-shaped and has the same radian with the inner wall of the outer side of the vibration cavity 14, so that the mixture of the bearing sleeve and the grinding materials slides or rolls along the inner wall of the arc-shaped vibration cavity 14 and the inner wall of the lane-changing plate 21 when internally circulating in the vibration cavity 14, the grinding materials and the inner wall of the lane-changing plate 21 conveniently roll relatively, and the polishing efficiency is improved; meanwhile, the width of the transmission channel is kept unchanged, and the phenomenon that the abrasion of the track changing plate 21 is aggravated due to the mutual extrusion of the grinding materials is avoided, so that the service life of the track changing plate 21 is prolonged.

Referring to fig. 1 and 2, a right-angle groove 133 is vertically formed in one side of the center post 131 facing the lane-changing plate 21, and the lane-changing plate 21 is inserted into and matched with the right-angle groove 133 when rotating to the center post 131, so that the surface of the lane-changing plate is flush with the peripheral side wall of the center post 131, the flatness of the inner wall of the vibration cavity 14 is improved, and a bearing sleeve or an abrasive is prevented from being clamped. And the top of lane changing board 21 is provided with shell fragment 22, and shell fragment 22 adopts the spring steel material and articulates with lane changing board 21, and welded fastening has annular rings 23 on the shell fragment 22, and the top of center post 131 is integrative to be provided with the stand 132 with rings 23 grafting cooperation, and stand 132 has two and distributes respectively on center post 131 and vibrating bin 13 lateral wall border. When the hanging ring 23 is inserted into the upright post 132, the track-changing plate 21 is locked to abut against the central post 131, so that the discharging is facilitated. And the bolt 24 is threaded through the horizontal screw thread on the central column 131, and one end of the bolt 24 is abutted against the spring plate 22 and forms an included angle with the spring plate 22. When the bolt 24 rotates, the elastic sheet 22 is pushed to deform, so that the elastic sheet 22 is tightened, and the track changing plate 21 abuts against the inner wall of the right-angle groove 133, thereby preventing the track changing plate 21 from loosening during vibration to generate a gap for leakage of workpieces or abrasive materials and influencing the discharging efficiency.

Referring to fig. 1 and 3, the dispersing mechanism further includes a separating assembly 3 disposed on the vibrating box 13 and located on the discharging port 15 side, and a collecting assembly 4 disposed on the vibrating base 12, wherein the separating assembly 3 includes a plurality of sieve rods 31 connected to the edge of the discharging port 15, a guide rail 32 connected to one end of the sieve rods 31, and a receiving box 33 disposed below the sieve rods 31. The maximum interval in clearance between adjacent sieve stick 31 is less than the minimum width of work piece and is greater than the minimum width of abrasive material, separates when the mixture of bearing housing and abrasive material reaches sieve stick 31 department, and sieve stick 31 is the slope form and its one end of keeping away from discharge gate 15 is less than the other end to this makes the bearing housing slide down to guide rail 32 along inclined sieve stick 31 and collects, and the abrasive material drops to collecting in receiver 33 along the clearance of sieve stick 31, convenient used repeatedly.

The sieve rod 31 is cylindrical, the sieve rods 31 are distributed in an arc shape, the height of the sieve rod 31 in the middle area of the sieve rods 31 is lower than that of the sieve rod 31 at the edge on the cross section of the sieve rod 31 in the width direction, so that the bearing sleeve is gathered in the middle area of the sieve rods 31 and slides to the guide rail 32 to be conveyed, and the bearing sleeve is prevented from falling from the sieve rod 31 at the edge area to influence the collection of the bearing sleeve.

Since the sieve bars 31 receive a higher proportion of the abrasives in the mixture as they approach the discharge port 15, it is necessary to enlarge the gap between the sieve bars 31 and the discharge port 15 to accelerate the separation of the abrasives. Therefore, the gap width between the adjacent sieve bars 31 is set to decrease gradually in the direction away from the discharge port 15, and the larger the included angle between the bearing sleeve and the line connecting the centers of circles of the two adjacent sieve bars 31 is, the easier the bearing sleeve goes deep into the gap between the adjacent sieve bars 31, so that the component force of gravity between the bearing sleeve and the sieve bars 31, i.e. the friction force, is larger, and the transmission resistance force is larger. Therefore, the gap of the plurality of sieve rods 31 far away from the discharge port 15 is reduced, the bearing sleeves can be gathered, and the bearing sleeves are prevented from being clamped in the gap of the adjacent sieve rods 31 to influence transmission.

Referring to fig. 1 and 4, one end of the sieve rod 31 far away from the discharge port 15 is hinged to the guide rail 32, a support 11 for placing the sieve rod 31 is arranged on the machine body 1 close to the discharge port 15, and the support 11 is arc-shaped and fixed with the machine body 1 through screws. The support 11 is provided with a plurality of strip-shaped holes 111 at regular intervals along the extending direction thereof, the screen rods 31 are connected with the strip-shaped holes 111 in a sliding manner along the distribution direction of the screen rods 31, and the separating assembly 3 further comprises a sliding block 34 arranged on the machine body 1 in a sliding manner, a plurality of strands of flexible ropes 341 connected with the sliding block 34, and a plurality of elastic pieces 342 arranged between adjacent screen rods 31. The elastic members 342 are made of spring steel bars, and two ends of each elastic member 342 are respectively bonded and fixed to two adjacent sieve bars 31, so that the abrasive or the bearing sleeve is prevented from being seriously jammed through the elastic action of the elastic members 342, and the fault tolerance rate is improved.

The flexible ropes 341 are in one-to-one correspondence with the sieve rods 31 and are respectively rotatably sleeved on the end portions of the sieve rods 31 near the discharge port 15, and the sliding blocks 34 slide on the symmetrical vertical surfaces of the sieve rods 31, and the sliding direction of the sliding blocks faces the direction opposite to the arc-shaped concave direction of the sieve rods 31. A screw rod is rotatably arranged on the machine body 1 in a penetrating manner, one end of the screw rod is in threaded connection with the sliding block 34, and the rotating axis direction of the screw rod is consistent with the sliding direction of the sliding block 34, so that the sliding block 34 is driven to slide. When the sliding block 34 slides, the flexible rope 341 is driven to stretch, the flexible rope 341 pulls the plurality of sieve rods 31 to synchronously slide, the plurality of sieve rods 31 synchronously slide to increase or decrease the maximum gap between the adjacent sieve rods 31, and when the size of the separated bearing sleeve is reduced, the maximum gap between the adjacent sieve rods 31 is correspondingly decreased, so that the bearing sleeve is prevented from falling, the application range of the dispersing mechanism is expanded, and the applicability is improved.

Referring to fig. 1 and 5, a rotating shaft 311 penetrates through the sieve rod 31, one end of the rotating shaft 311, which is far away from the discharge hole 15, is rotatably connected with the machine body 1, the separating assembly 3 further includes an annular transmission belt 35 disposed on the machine body 1 and a driving member 36 for driving the transmission belt 35, and the transmission belt 35 is in a serpentine shape and bypasses each sieve rod 31. The driving member 36 comprises a servo motor 361 fixed with the machine body 1 through a screw, a driving wheel is coaxially fixed on an output shaft of the servo motor 361, and one side of the transmission belt 35 bypasses the driving wheel and is in rolling connection with the driving wheel. When the servo motor 361 rotates, the driving wheel is driven to rotate to drive the driving belt 35 to drive, when the driving belt 35 drives each sieve bar 31 to synchronously rotate and the rotation directions of the adjacent sieve bars 31 are opposite, so that the rotation directions of the adjacent sieve bars 31 are opposite, and the abrasive clamped between the adjacent sieve bars 31 falls down, so that the abrasive blocked on the sieve bars 31 is cleaned; meanwhile, the sieve rod 31 disturbs the bearing sleeve on the sieve rod when rotating, so that the scrap powder on the bearing sleeve is removed, the transmission of the bearing sleeve is accelerated, and the separation and discharge efficiency is improved.

The storage box 33 top is provided with curved baffle 41, and when the abrasive material along the clearance of adjacent sieve stick 31 drop to the baffle 41 on, slide to the storage box 33 in along its concave arc face, a plurality of filtration pores 42 have been seted up downwards in the slope of the concave arc department of baffle 41, and the maximum width of filtration pore 42 is less than the minimum width of abrasive material, and the convex arc side of baffle 41 is provided with the waste material fill 43 of accomodating the powder, and waste material fill 43 passes through the fix with screw with baffle 41. The guide plate 41 is in a concave arc shape so as to guide the abrasive to enter the storage box 33, and the guide plate 41 separates the powder in the abrasive by matching the impact force generated when the abrasive falls through the plurality of filter holes 42, so that the abrasive can be conveniently reused.

The implementation principle of the embodiment is as follows: before polishing, an operator firstly switches the diversion plate 21 to abut against the inner wall of the outer side of the vibration cavity 14 and enables the hanging ring 23 to be sleeved with the upright post 132 on the edge of the outer side wall of the vibration box 13 to realize locking, and then the vibration motor 161 drives the vibration box 13 to vibrate so as to enable the mixture of the bearing sleeve and the abrasive to rotate clockwise or anticlockwise around the vibration cavity 14 to be conveyed and polished.

After polishing, the diversion plate 21 is rotated to sleeve the hanging ring 23 with the upright post 132 on the central post 131, and the bolt 24 is tightened to lock the diversion plate 21 and the central post 131, so as to communicate the discharge port 15 with the vibration cavity 14. The bearing sleeve and the abrasive reach the screen rods 31 along the discharge port 15, and the abrasive and the bearing sleeve are filtered by the plurality of screen rods 31 because the maximum spacing of the gaps between the adjacent screen rods 31 is smaller than the minimum width of the workpiece and larger than the minimum width of the abrasive. And the abrasive material slides down along baffle 41 and collects to receiver 33 and carry out used repeatedly, and guide rail 32 will transport the bearing housing that slides down from sieve stick 31 alone to other collection departments to realize the separation of abrasive material and bearing housing, and then promote discharging efficiency and separation efficiency.

Example two: a high-precision oil-retaining bearing sleeve processing method comprises the following steps:

s100: the gap of the sieve rod 31 is changed through the sliding block 34 according to the size of the bearing sleeve;

s200: mixing the bearing sleeve with the abrasive and then placing the mixture into the vibration cavity 14, and switching the track changing plate 21 to a position where the track changing plate is abutted against the outer side wall of the vibration cavity 14;

s300: starting the vibration motor 161, wherein the vibration motor 161 drives the mixture of the workpiece and the abrasive to rotate clockwise or anticlockwise around the annular vibration cavity 14 and perform vibration polishing, and at the moment, the bearing sleeve and the abrasive are in an internal circulation state;

s400: after polishing, the diversion plate 21 is rotated to be connected with the central column 131, and the mixture of the workpiece and the abrasive reaches the discharge hole 15 along the channel between the vibration cavity 14 and the diversion plate 21 and slides onto the sieve rod 31;

s500: the sieve rod 31 separates the abrasive from the bearing sleeve, and the abrasive falls off and is transferred to the storage box 33 for reuse;

s600: and collecting the separated bearing sleeves.

The implementation principle of the embodiment is as follows: an operator firstly changes the gap of the sieve rod 31 according to the size of the workpiece, so that the gap of the sieve rod 31 filters the bearing sleeve and simultaneously separates the grinding materials as much as possible, thereby accelerating the separation efficiency and improving the separation efficiency of the bearing sleeve and the grinding materials; then the internal circulation and the discharging of the bearing sleeve and the abrasive are realized through rotating the rear deflector 21, so that the discharging efficiency of the workpiece is improved, and the abrasive is transferred to the storage box 33 and then can be repeatedly used, so that the utilization rate of resources is improved, and the environmental protection performance is improved.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The high-precision oil-containing bearing sleeve processing equipment is characterized by comprising a machine body (1), a vibration seat (12) arranged at the bottom of the machine body (1), a vibration box (13) arranged at the top of the machine body (1), a vibration mechanism (16) arranged between the vibration seat (12) and the vibration box (13) and a dispersion mechanism arranged on one side of the vibration seat (12) and used for separating grinding materials from workpieces, wherein an annular vibration cavity (14) for mixing the workpieces and the grinding materials is formed in the vibration box (13), the vibration mechanism (16) is used for driving the vibration box (13) to vibrate so that the mixture of the workpieces and the grinding materials can be conveyed around the vibration cavity (14) in a clockwise or anticlockwise rotating mode and polished, and a discharge hole (15) is formed in one side of the vibration box (13);

the dispersing mechanism comprises a channel changing assembly (2) arranged on the vibration box (13), a separating assembly (3) arranged on the vibration box (13) and positioned at the side of the discharge port (15), and a collecting assembly (4) arranged on the vibration seat (12), wherein the channel changing assembly (2) is used for realizing the communication between the discharge port (15) and the vibration cavity (14);

the separating assembly (3) comprises a plurality of sieve rods (31) connected with the edge of the discharge port (15), a guide rail (32) connected with one end of each sieve rod (31) and a storage box (33) arranged below the sieve rods (31), the maximum distance of gaps between every two adjacent sieve rods (31) is smaller than the minimum width of a workpiece and larger than the minimum width of an abrasive, and each sieve rod (31) is inclined and one end, far away from the discharge port (15), of each sieve rod is lower than the other end.

2. The high-precision oil-retaining bearing sleeve processing equipment as claimed in claim 1, wherein the sieve bars (31) are distributed in an arc shape, and the sieve bars (31) located in the middle area of the sieve bars (31) are lower than the sieve bars (31) at the edge in the cross section along the width direction of the sieve bars (31).

3. A high accuracy oil-impregnated bearing housing processing apparatus according to claim 1, wherein the gap width of the adjacent sieve bars (31) decreases in the direction away from the discharge port (15).

4. The high-precision oil-containing bearing sleeve processing equipment according to claim 1, wherein one end, far away from the discharge port (15), of each sieve rod (31) is hinged to a guide rail (32), a support (11) for placing the sieve rods (31) is arranged on the machine body (1) close to the discharge port (15), the sieve rods (31) are connected with the support (11) in a sliding mode along the distribution direction of the sieve rods (31), the separating assembly (3) further comprises a sliding block (34) arranged on the machine body (1) in a sliding mode, a plurality of strands of flexible ropes (341) connected with the sliding block (34), and a plurality of elastic pieces (342) arranged between the adjacent sieve rods (31), each elastic piece (342) is connected with two adjacent sieve rods (31), each flexible rope (341) is connected with each sieve rod (31), and the sliding block (34) drives the sieve rods (31) to be the same as the sieve rods (31) when sliding along the symmetrical surfaces of the sieve rods (31) in the direction opposite to the arc-shaped depression direction of the sieve rods (31) The step slides and reduces the maximum clearance of adjacent screen bars (31).

5. The high-precision oil-containing bearing sleeve processing equipment as claimed in claim 1, wherein the sieve bars (31) are rotatably connected with the machine body (1), the separating assembly (3) further comprises an annular transmission belt (35) arranged on the machine body (1) and a driving piece (36) for driving the transmission belt (35) to transmit, the transmission belt (35) is snakelike and bypasses each sieve bar (31), and when the transmission belt (35) transmits, each sieve bar (31) is driven to synchronously rotate, and the rotation directions of the adjacent sieve bars (31) are opposite.

6. The high-precision oil-containing bearing bush machining equipment as claimed in claim 4, wherein a center column (131) is arranged at the center of the vibration cavity (14) on the vibration box (13), the lane changing assembly (2) comprises a lane changing plate (21) hinged to the opening edge side of the discharge hole (15), the rotating axis of the lane changing plate (21) is vertically distributed, and the edge of the lane changing plate is connected with the peripheral side wall of the center column (131) when the lane changing plate (21) rotates, so that the discharge hole (15) is communicated with the vibration cavity (14).

7. The high-precision oil-retaining bearing sleeve machining device according to claim 6, wherein the deflector plate (21) is arc-shaped and is consistent with the arc of the inner wall of the outer side of the vibration cavity (14).

8. The high-precision oil-containing bearing sleeve processing equipment as claimed in claim 6, wherein a right-angle groove (133) is vertically formed in one side of the center column (131) facing the lane change plate (21), the lane change plate (21) is in plug-in fit with the right-angle groove (133) when rotating to the center column (131) so that the surface of the lane change plate is flush with the peripheral side wall of the center column (131), an elastic sheet (22) is arranged at the top of the lane change plate (21), a lifting ring (23) is connected onto the elastic sheet (22), a stand column (132) in plug-in fit with the lifting ring (23) is arranged at the top of the center column (131), a bolt (24) abutted to the elastic sheet (22) is arranged on the center column (131) in a penetrating manner through a thread, and the bolt (24) and the elastic sheet.

9. The high-precision oil-retaining bearing sleeve processing equipment according to claim 1, wherein an arc-shaped guide plate (41) is arranged at the top of the storage box (33), when the grinding materials fall onto the guide plate (41) along the gap between adjacent sieve bars (31), the grinding materials slide into the storage box (33) along the concave arc surface of the guide plate, a plurality of filtering holes (42) are obliquely formed downwards at the concave arc position of the guide plate (41), the maximum width of each filtering hole (42) is smaller than the minimum width of the grinding materials, and a waste hopper (43) for storing powder is arranged on the convex arc side of the guide plate (41).

10. A high-precision oil-retaining bearing bush machining method is applied to the high-precision oil-retaining bearing bush machining equipment as claimed in any one of claims 6 to 8, and is characterized by comprising the following steps of:

s100: changing the gap of the sieve rod (31) according to the size of the workpiece;

s200: mixing a workpiece and abrasive, putting the mixture into a vibration cavity (14), and switching a track changing plate (21) to a position where the workpiece is abutted against the outer side wall of the vibration cavity (14);

s300: starting the vibration mechanism (16), wherein the vibration mechanism (16) drives the mixture of the workpiece and the abrasive to rotate clockwise or anticlockwise around the annular vibration cavity (14) and carry out vibration polishing, and the workpiece and the abrasive are in an internal circulation state at the moment;

s400: after polishing, rotating the diversion plate (21) to be connected with the central column (131), and enabling the mixture of the workpiece and the abrasive to reach the discharge hole (15) along a channel between the vibration cavity (14) and the diversion plate (21) and slide to the sieve rod (31);

s500: the sieve bar (31) separates the abrasive from the workpiece, and the abrasive is transferred to the storage box (33) for reuse;

s600: and collecting the separated workpieces.