阅读说明：本技术 一种可实现持续加工的轴承强化研磨设备 (bearing reinforced grinding equipment capable of realizing continuous processing ) 是由 刘晓初 谢鑫成 段伟建 高伟林 黄建枫 朱锐 刘镇 于 2019-09-29 设计创作，主要内容包括：本发明公开一种可实现持续加工的轴承强化研磨设备,包括强化加工模块和循环供料模块,所述强化加工模块包括防护箱体和旋转装夹机构,所述循环供料模块包括高速喷头、液体供料机构、固体供料机构和固液分离机构；所述液体供料机构包括存放容器、第一输送管道和输送泵；所述固体供料机构包括料斗、第二输送管道和输送器；所述第一输送管道的首端连通在存放容器上,其尾端与第二输送管道的尾端汇合后连通至高速喷头；所述料斗位于防护箱体和存放容器之间；所述固液分离机构包括设置在料斗的底部连通于存放容器的开口处的分离筛网。该轴承强化研磨设备不仅能够进行持续不断的循环加工,而且有效地减少管道堵塞的现象,实现分类回收和多工作模式。(The invention discloses a bearing reinforced grinding device capable of realizing continuous processing, which comprises a reinforced processing module and a circulating feeding module, wherein the reinforced processing module comprises a protective box body and a rotary clamping mechanism, and the circulating feeding module comprises a high-speed spray head, a liquid feeding mechanism, a solid feeding mechanism and a solid-liquid separation mechanism; the liquid feeding mechanism comprises a storage container, a first conveying pipeline and a conveying pump; the solid feeding mechanism comprises a hopper, a second conveying pipeline and a conveyor; the head end of the first conveying pipeline is communicated with the storage container, and the tail end of the first conveying pipeline is communicated with the high-speed spray head after being converged with the tail end of the second conveying pipeline; the hopper is positioned between the protective box body and the storage container; the solid-liquid separation mechanism comprises a separation screen which is arranged at the bottom of the hopper and communicated with the opening of the storage container. The bearing strengthening grinding equipment can not only carry out continuous and continuous circular processing, but also effectively reduce the phenomenon of pipeline blockage and realize classified recovery and multiple working modes.)

1. A bearing strengthening grinding device capable of realizing continuous machining comprises a strengthening machining module and a circulating feeding module, and is characterized in that the strengthening machining module comprises a machining protective box body and a rotary clamping mechanism, and the rotary clamping mechanism comprises a clamping mechanism for clamping a bearing and a rotary driving mechanism for driving the clamping mechanism to rotate; the circulating feeding module comprises a high-speed spray head, a liquid feeding mechanism, a solid feeding mechanism and a solid-liquid separation mechanism;

The liquid supply mechanism comprises a storage container for storing grinding liquid, a first conveying pipeline for conveying the grinding liquid and a conveying pump for providing conveying pressure in the first conveying pipeline; the solid feeding mechanism comprises a hopper for storing the grinding materials, a second conveying pipeline for conveying the grinding materials and a conveyor for providing conveying pressure in the second conveying pipeline; the hopper is positioned below the processing protective box body and above the storage container; the head end of the first conveying pipeline is communicated with the storage container, and the tail end of the first conveying pipeline is communicated with the high-speed spray head after being converged with the tail end of the second conveying pipeline; the head end of the second conveying pipeline is communicated with the lower end of the hopper;

The solid-liquid separation mechanism comprises a separation screen for separating grinding fluid and grinding materials, and the separation screen is arranged at the bottom of the hopper and communicated with an opening of the storage container.

2. The apparatus for strengthening and grinding bearings capable of continuous processing according to claim 1, wherein the hopper comprises a feeding hopper for storing the grinding material and the grinding fluid before the start of the work and a temporary storage hopper for storing the grinding material during the work, the temporary storage hopper is communicated with the discharge port of the feeding hopper;

The separation screen is obliquely inserted into the inner cavity of the storage container to divide the inner cavity of the storage container into an upper space and a lower space; wherein, a separation screen is used as a bottom surface, and the space above the separation screen forms the temporary storage hopper; the space below is a storage space for storing the separated grinding fluid.

3. The apparatus for reinforcing and grinding a bearing capable of performing continuous processing according to claim 2, wherein a head end of the second transfer pipe is connected to a side wall of a lower end of the temporary storage hopper.

4. The apparatus of claim 2, wherein the storage container has a mounting hole formed in one sidewall thereof, and at least one supporting block disposed below a level of the mounting hole is disposed on the other sidewall opposite to the one sidewall.

5. the apparatus for reinforcing and grinding a bearing capable of achieving continuous processing according to any one of claims 1 to 4, wherein the solid-liquid separation mechanism further comprises a sealing plate, the sealing plate and the separation screen are installed at the same position, and the sealing plate and the separation screen are installed at the same position of the storage container; when the separating screen is arranged in the storage container, the three-phase flow processing is realized; when the sealing plate is installed in the storage container, two-phase flow processing is realized.

6. The apparatus for reinforcing and grinding a bearing capable of achieving continuous processing according to claim 5, wherein the bottom of the storage container is provided with a first discharge port for discharging the grinding fluid in the container, and the first discharge port is provided with a first discharge switch;

And a second discharge port for discharging the grinding materials in the hopper is arranged at the bottom of the temporary storage hopper, and a second discharge switch is arranged at the second discharge port.

7. The bearing reinforced grinding equipment capable of realizing continuous processing according to claim 2, wherein the inclination angle of the separation screen is 45-90 degrees, and the side length of the grid is 0.3-0.5 mm smaller than the diameter of the abrasive steel balls.

8. the bearing reinforced grinding device capable of realizing continuous processing according to claim 5, wherein the conveyor is a pneumatic conveyor and is arranged in the middle of the second conveying pipeline; the pneumatic conveyor is communicated with a first high-pressure pipeline for providing high-pressure gas.

9. The bearing reinforced grinding equipment capable of realizing continuous processing according to claim 1, wherein a second high-pressure pipeline for providing high-pressure gas for the second time is communicated between the high-speed spray head and the merging end of the tail parts of the first conveying pipeline and the second conveying pipeline.

10. The apparatus of claim 9, wherein the first valve, the second valve, the third valve and the fourth valve are disposed in the feeding hopper, the first delivery pipe, the first high pressure pipe and the second high pressure pipe, respectively.

Technical Field

The invention relates to a reinforced grinding device, in particular to a bearing reinforced grinding device capable of realizing continuous processing.

background

With the rapid development of modern industrial technologies, various industries have increasingly high requirements on the safe and reliable performance and the service life of mechanical equipment, such as automobiles, robots, internal combustion engines, ships, metallurgical machinery, coal mine machinery and the like; among them, the bearing is used as an indispensable rotating bearing body, widely applied to modern mechanical equipment, and is called as a mechanical joint by the mechanical industry. The failure of the bearing not only causes property loss, but also can cause a great deal of casualties, so that the improvement of the fatigue life of the bearing is of great significance.

A conventional strengthening grinding machine employs a direct pressurization type machining method, for example, a bearing strengthening grinding machine disclosed in application publication No. CN104942664A, which directly mixes a strengthening abrasive and a strengthening abrasive liquid by high-pressure gas and then conveys the mixture to a nozzle to machine a workpiece. Although the reinforced grinding machine can automatically complete reinforced processing and has the advantages of simple structure, convenient control and the like, the following defects still exist:

(1) Although the below of hopper is equipped with the storage tank, this storage tank can retrieve the abrasive, can realize recycling through high-pressure gas, but add man-hour when grinding, the check valve on storage tank top is in the closed condition, the abrasive in the hopper can only stop in the hopper, and can not fall the storage tank and carry out the circulation feed, only add man-hour when stopping grinding, stop the input high-pressure gas in the intake pipe, the check valve is opened, the abrasive in the hopper just flows into the storage tank from the export, can not realize the bad utilization of circulation of continuation formula like this, can not in time supply the abrasive, its machining efficiency remains to be provided.

(2) the mixed abrasive and the abrasive liquid may be agglomerated, and the mixed abrasive and the abrasive liquid may easily clog a pipeline during a continuous circulation transportation process.

(3) The processed grinding materials and grinding fluid can not be classified and recycled, so that the processing efficiency of the bearing is low, and the recycling is complicated.

(4) The reinforced grinding machine is in a fixed working mode, can only realize one of other modes such as two-phase flow (abrasive and high-pressure gas) or three-phase flow (abrasive, grinding liquid and high-pressure gas), and has a single working mode and poor applicability.

disclosure of Invention

The invention aims to overcome the problems and provide the bearing strengthening grinding equipment capable of realizing continuous processing, which not only can realize continuous and continuous circular processing, but also can effectively reduce the phenomenon of pipeline blockage, and also has the advantages of classified recovery, multiple working modes and the like.

The purpose of the invention is realized by the following technical scheme:

A bearing strengthening grinding device capable of realizing continuous machining comprises a strengthening machining module and a circulating feeding module, wherein the strengthening machining module comprises a machining protective box body and a rotary clamping mechanism, and the rotary clamping mechanism comprises a clamping mechanism for clamping a bearing and a rotary driving mechanism for driving the clamping mechanism to rotate; the circulating feeding module comprises a high-speed spray head, a liquid feeding mechanism, a solid feeding mechanism and a solid-liquid separation mechanism;

The liquid supply mechanism comprises a storage container for storing grinding liquid, a first conveying pipeline for conveying the grinding liquid and a conveying pump for providing conveying pressure in the first conveying pipeline; the solid feeding mechanism comprises a hopper for storing the grinding materials, a second conveying pipeline for conveying the grinding materials and a conveyor for providing conveying pressure in the second conveying pipeline; the hopper is positioned below the processing protective box body and above the storage container; the head end of the first conveying pipeline is communicated with the storage container, and the tail end of the first conveying pipeline is communicated with the high-speed spray head after being converged with the tail end of the second conveying pipeline; the head end of the second conveying pipeline is communicated with the lower end of the hopper;

The solid-liquid separation mechanism comprises a separation screen for separating grinding fluid and grinding materials, and the separation screen is arranged at the bottom of the hopper and communicated with an opening of the storage container.

The working principle of the bearing strengthening grinding equipment is as follows:

When the device works, a bearing to be processed is clamped on the clamping mechanism, and the angle of the high-speed sprayer is adjusted to enable the nozzle of the sprayer to face the outer surface of the bearing; putting the grinding material and the grinding liquid on a hopper, and enabling the grinding liquid to fall into a storage container below the hopper through a separation screen; starting a delivery pump and a conveyor, respectively delivering grinding fluid and grinding material (consisting of steel balls) to a high-speed spray head through a first delivery pipeline and a second delivery pipeline, wherein the tail ends of the delivery pipelines and the second delivery pipeline are converged together, when the grinding fluid and the grinding material are converged, the grinding fluid and the grinding material are mixed and enter the high-speed spray head together, and a mixture formed by the grinding fluid and the grinding material is sprayed onto the processing surface of a bearing through the high-speed spray head; the mixture formed by the grinding fluid and the grinding material impacts the surface of the bearing at a high speed, so that the surface of the bearing obtains larger residual compressive stress, and the mechanical property and the service life of the bearing are favorably improved.

Further, under the protection of the processing protection box body and the gravity action of the grinding materials, the grinding materials and the grinding liquid after the impact can fall down and pass through the bottom end of the processing protection box body to fall into the hopper; specifically, since the bottom of the hopper is provided with a separation screen (the size of the mesh is smaller than that of the steel balls of the grinding materials), the liquid grinding fluid continuously passes through the separation screen and falls into the storage container, and the solid grinding materials continuously stay on the hopper; after the recovery, the grinding materials and the grinding fluid are returned to respective storage points, and then the grinding materials and the grinding fluid can be circularly conveyed under the driving of the conveying pump and the conveyer, and the bearings are circularly sprayed until the processing is finished.

In a preferred embodiment of the present invention, the hopper includes a feeding hopper for storing the abrasive and the grinding fluid before the start of the work and a temporary storage hopper for storing the abrasive during the work, and the temporary storage hopper is communicated with a discharge port of the feeding hopper. Before work begins, a worker places the grinding materials and the grinding liquid in the feeding hopper, and when the work begins, the switch or the valve is opened, so that the grinding materials and the grinding liquid enter the temporary storage hopper, and solid-liquid separation and conveying work are started.

Preferably, the separation screen is obliquely inserted into the inner cavity of the storage container to divide the inner cavity of the storage container into an upper space and a lower space; wherein, a separation screen is used as a bottom surface, and the space above the separation screen forms the temporary storage hopper; the space below is a storage space for storing the separated grinding fluid. Through the structure, based on one storage container, the grinding fluid storage container is reasonably optimized into two spaces for storing grinding materials and grinding fluid, so that the structure is simpler and more compact, and the manufacturing cost can be reduced.

Furthermore, the head end of the second conveying pipeline is connected to the side wall of the lower end of the temporary storage hopper, and in the working process, after the grinding materials fall into the temporary storage hopper, the grinding materials below the temporary storage hopper can move downwards along the inclined separation screen, so that the grinding materials are accumulated at the inclined bottom, the head end of the second conveying pipeline is connected to the inclined bottom, and the conveying of the sufficient grinding materials is guaranteed.

In a preferred embodiment of the present invention, one of the side walls of the storage container is provided with a mounting hole, and the other side wall opposite to the side wall is provided with at least one support block located below a level of the mounting hole. Through the structure, one end of the separating screen can pass through the mounting hole to be supported on the supporting block, and the other end of the separating screen is lapped in the mounting hole, so that the separating screen is mounted; wherein the separating screen is disposed in the storage container in an inclined posture so as to gather the falling abrasives together, since the supporting block opposite to the mounting hole is located below the mounting hole.

In a preferred embodiment of the present invention, the solid-liquid separation mechanism further includes a sealing plate, and the sealing plate and the separation screen are installed at the same position, which is the same position as the storage container; when the separating screen is arranged in the storage container, the three-phase flow processing is realized; when the sealing plate is installed in the storage container, two-phase flow processing is realized. Above-mentioned structure, through switching closing plate and separation screen cloth, can realize different processing modes: three-phase flow (millbase, grinding fluid, high-pressure gas) or two-phase flow (millbase, high-pressure gas).

In a preferred aspect of the present invention, a first discharge port for discharging the grinding fluid in the container is provided at the bottom of the storage container, and the first discharge port is provided with a first discharge switch;

and a second discharge port for discharging the grinding materials in the hopper is arranged at the bottom of the temporary storage hopper, and a second discharge switch is arranged at the second discharge port. Through setting up above-mentioned structure, can retrieve lapping liquid and abrasive material respectively after the bearing processing finishes, but also can wash whole inner tube way conveniently more, its operation is as follows: opening a first discharge switch and a second discharge switch, discharging all grinding fluid and grinding materials, adding cleaning water into a feeding hopper, allowing the cleaning water to flow to a temporary storage hopper and then stay in a storage container through a separation screen, wherein the amount of the added water is enough to meet the requirement of cleaning a second conveying pipeline; starting a conveying pump and a conveyor, wherein the first conveying pipeline and the second conveying pipeline both convey cleaning water, the cleaning water is ejected from a high-speed spray head along a conveying path for realizing processing, the interior of a processing protective box body is cleaned, and finally the cleaning water returns to a storage container; after the water is sent and sprayed for many times in a circulating way, the cleaning water automatically washes the inside of the equipment and the pipeline clean, and the cleaning work is very convenient.

Preferably, the first discharge switch is a stop plug, the second discharge switch is a stop valve, the stop valve is respectively used for plugging the first discharge port and the second discharge port when the work is finished, and the stop plug and the stop valve are opened after the work is finished, so that the grinding fluid and the grinding material can be recovered.

In a preferable embodiment of the present invention, the inclination angle of the separation screen is 45 ° to 90 °, and the side length of the mesh is 0.3mm to 0.5mm smaller than the diameter of the bead of the abrasive.

In a preferred embodiment of the present invention, the conveyor is a pneumatic conveyor, and is disposed in the middle of the second conveying pipe; the pneumatic conveyor is communicated with a first high-pressure pipeline for providing high-pressure gas. Through using the pneumatic conveyor, the high-pressure gas provided by the first high-pressure pipeline is combined, so that the conveying of the abrasive is realized, and the problem of the blockage of the abrasive is effectively solved.

Preferably, a second high-pressure pipeline for providing high-pressure gas for the second time is communicated between the high-speed spray head and the merging end at the tail part of the first conveying pipeline and the second conveying pipeline. Generally, under the action of high-pressure gas and a pneumatic conveyor, the grinding materials are conveyed upwards from the temporary storage hopper through the second conveying roller path and then are mixed with the grinding liquid, in the process, the grinding materials need to overcome the gravity and the resistance after being mixed with the grinding liquid, and the conveying force at the moment can hardly eject the mixture from the high-speed spray head at a high speed; in order to solve the above problem, it is preferable that a second high-pressure pipeline is provided, and after the polishing slurry and the polishing powder are mixed, the second high-pressure pipeline supplies high-pressure gas to pressurize the mixture, so that the mixture can be ejected from the high-speed nozzle at a sufficiently high speed.

In a preferred embodiment of the present invention, the first valve body, the second valve body, the third valve body and the fourth valve body are respectively disposed in the feeding hopper, the first conveying pipeline, the first high-pressure pipeline and the second high-pressure pipeline.

Compared with the prior art, the invention has the following beneficial effects:

1. According to the invention, two feeding routes are arranged to respectively convey the grinding fluid and the grinding material, the grinding fluid and the grinding material fall back into the hopper after the bearing is impacted at a high speed, and the grinding fluid and the grinding material which are mixed together are separated by the separating screen so as to be conveyed again, so that sustainable processing is realized.

2. the grinding fluid and the grinding material which are mixed together are respectively stored after being separated by the separating screen, and independent conveying is realized in the circulating conveying (feeding) process, so that the phenomenon of pipeline blockage can be effectively reduced.

3. After the bearing is machined, the grinding fluid and the grinding materials are separated by the separating screen, so that the grinding materials are classified and recovered, and the recovery efficiency of workers is greatly improved.

4. based on the intensified grinding equipment provided by the invention, the sustainable processing of the bearing by three-phase flow (abrasive, grinding fluid and high-pressure gas) and the processing of the bearing by two-phase flow (abrasive and high-pressure gas) can be realized without adopting any structural change.

Drawings

FIG. 1 is a schematic view of a bearing enhanced grinding apparatus capable of performing continuous machining according to the present invention.

Fig. 2 is an enlarged view of X in fig. 1.

Fig. 3 is a plan view of a separating screen in the present invention.

Detailed Description

In order to make those skilled in the art understand the technical solutions of the present invention well, the following description of the present invention is provided with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

Referring to fig. 1-2, the bearing reinforced grinding device capable of realizing continuous processing in this embodiment includes a reinforced processing module and a circulating feeding module, the reinforced processing module includes a processing protective box 1 and a rotary clamping mechanism, and the rotary clamping mechanism includes an electromagnetic centerless fixture for clamping a bearing a and a rotary driving mechanism for driving the electromagnetic centerless fixture to rotate; the circulating feeding module comprises a high-speed spray head 2, a liquid feeding mechanism, a solid feeding mechanism and a solid-liquid separation mechanism.

Referring to fig. 1 to 3, the liquid supply mechanism includes a storage container 3 for storing the abrasive liquid, a first delivery pipe 4 for delivering the abrasive liquid, and a delivery pump 5 for providing a delivery pressure in the first delivery pipe 4. The solid feeding mechanism comprises a hopper for storing the grinding materials, a second conveying pipeline 6 for conveying the grinding materials and a pneumatic conveyor 7 for providing conveying pressure in the second conveying pipeline 6; the hopper is positioned below the processing protective box body 1 and comprises a feeding hopper 8 used for storing grinding materials and grinding fluid before work begins and a temporary storage hopper 9 used for temporarily storing the grinding materials in the work process, and the temporary storage hopper 9 is communicated with a discharge port of the feeding hopper 8; the feeding hopper 8 is provided with a first valve body 10, before work begins, a worker places abrasive and grinding fluid in the feeding hopper 8, and when the work begins, the switch or the valve is opened, so that the abrasive and the grinding fluid enter the temporary storage hopper 9.

Referring to fig. 1-3, the first delivery pipe 4 is provided with a second valve body 11, the head end of which is communicated with the storage container 3, and the tail end of which is communicated with the high-speed spray head 2 after being converged with the tail end of the second delivery pipe 6. The head end of the second conveying pipeline 6 is communicated with the lower end of the temporary storage hopper 9, and the tail end of the second conveying pipeline is arranged to be of a bent pipe structure before being converged with the first conveying pipeline 4, so that the grinding fluid is prevented from being guided to the second conveying pipeline 6.

referring to fig. 1-3, the solid-liquid separation mechanism comprises a separation screen 12 and a sealing plate, the separation screen 12 and the sealing plate belong to a switching installation relationship, and the installation positions of the separation screen 12 and the sealing plate are both the bottom of a hopper communicated with an opening of a storage container 3; when the separating screen 12 is arranged in the storage container 3, the three-phase flow processing is realized; when the sealing plate is installed in the storage container 3, two-phase flow processing is realized. By switching the sealing plates and the separating screen 12, different processing modes can be achieved: three-phase flow (millbase, grinding fluid, high-pressure gas) or two-phase flow (millbase, high-pressure gas).

referring to fig. 1 to 3, the separating screen 12 is obliquely inserted into the inner cavity of the storage container 3 to divide the inner cavity of the storage container 3 into an upper space and a lower space; wherein, the separation screen 12 is used as the bottom surface, and the space above the separation screen forms the temporary storage hopper 9; the space below is a storage space for storing the separated grinding fluid. Specifically, the inclination angle of the separation screen 12 is 45-90 degrees, and the side length of the grid is 0.3-0.5 mm smaller than the diameter of the abrasive steel balls. Through the structure, based on the storage container 3, two spaces for storing the grinding materials and the grinding fluid are reasonably optimized, so that the structure is simpler and more compact, and the manufacturing cost can be reduced.

further, the head end of the second conveying pipeline 6 is connected to the side wall of the lower end of the temporary storage hopper 9, and in the working process, after the grinding materials fall into the temporary storage hopper 9, the grinding materials below the temporary storage hopper can move downwards along the inclined separation screen 12, so that the grinding materials are stacked at the inclined bottom, and therefore the head end of the second conveying pipeline 6 is connected to the inclined bottom, and sufficient grinding materials are conveyed.

Referring to fig. 1-3, one of the side walls of the storage container 3 is provided with a mounting hole and the other side wall opposite to the side wall is provided with at least one support block 13 located below the level of the mounting hole. Through the structure, one end of the separating screen 12 can pass through the mounting hole to be supported on the supporting block 13, and the other end of the separating screen 12 is lapped in the mounting hole, so that the separating screen 12 is mounted; wherein the separating screen 12 is disposed in the storage container 3 in an inclined posture so as to gather the falling abrasives together, since the holding block 13 opposite to the mounting hole is located below the mounting hole.

Referring to fig. 1-3, the bottom of the storage container 3 is provided with a first outlet for discharging the grinding fluid in the container, and the first outlet is provided with a first discharge switch 14; the bottom of the temporary storage hopper 9 is provided with a second discharge port for discharging the grinding materials in the hopper, and a second discharge switch 15 is arranged at the second discharge port; the first discharge switch 14 is a stop plug, the second discharge switch 15 is a stop valve, and the stop plug and the stop valve are respectively used for plugging the first discharge port and the second discharge port when the work is finished, and the grinding fluid and the grinding material can be recovered by opening the stop plug and the stop valve after the work is finished. Through setting up above-mentioned structure, can retrieve lapping liquid and abrasive material respectively after bearing a finishes processing, but also can wash whole inner tube way more conveniently, its operation is as follows: opening a first discharge switch 14 and a second discharge switch 15 to discharge all grinding fluid and grinding materials, adding cleaning water to the feeding hopper 8, wherein the cleaning water flows to the temporary storage hopper 9 and then stays in the storage container 3 through the separation screen 12, and the amount of the added water is enough to meet the requirement of cleaning the second conveying pipeline 6; starting the delivery pump 5 and the pneumatic conveyor 7, conveying cleaning water by the first delivery pipeline 4 and the second delivery pipeline 6, ejecting the cleaning water from the high-speed spray head 2 along a conveying path for realizing processing, cleaning the interior of the processing protective box body 1, and finally returning the cleaning water to the storage container 3; after the water is sent and sprayed for many times in a circulating way, the cleaning water automatically washes the inside of the equipment and the pipeline clean, and the cleaning work is very convenient.

With reference to fig. 1-3, said pneumatic conveyor 7 is arranged in the middle of the second conveying pipe 6, communicating with a first high-pressure pipe 16 for supplying high-pressure gas; the first high-pressure pipeline 16 is provided with a third valve body 18 convenient for controlling air pressure, and the air pressure of the air inlet is larger than 0.4MPa by adjusting the third valve body 18. By using the pneumatic conveyor 7 and combining the high-pressure gas provided by the first high-pressure pipeline 16, the conveying of the grinding materials is realized, and the problem of the blockage of the grinding materials is effectively solved.

Further, a second high-pressure pipeline 17 for providing high-pressure gas for the second time is communicated between the high-speed spray head 2 and the junction end of the tail parts of the first conveying pipeline 4 and the second conveying pipeline 6, and the second high-pressure pipeline 17 is provided with a fourth valve body 19. Generally, under the action of the high-pressure gas and pneumatic conveyor 7, the grinding materials are conveyed upwards from the temporary storage hopper 9 through the second conveying roller path and then mixed with the grinding liquid, in the process, the grinding materials need to overcome the gravity and the resistance after being mixed with the grinding liquid, and the conveying force at the moment can hardly eject the mixture from the high-speed spray head 2 at a high speed; in order to solve the above problem, it is preferable that the second high-pressure pipe 17 is provided so that after the polishing liquid and the polishing powder are mixed, the second high-pressure pipe 17 supplies the high-pressure gas to pressurize the mixture, and the mixture can be ejected from the high-speed ejection head 2 at a sufficiently high speed.

Specifically, the clamping manner of the electromagnetic centerless clamp in this embodiment may refer to the prior art of electromagnetic clamps, such as the related technologies of a bearing reinforced grinding machine disclosed in the invention patent with the publication number of CN 104942664B and a reinforced grinding processing method of a wheel tooth-shaped workpiece disclosed in the invention application with the publication number of CN 109176318 a.

In addition, the rotary driving mechanism comprises a rotary driving motor, a transmission rod and the like, and the specific structure can refer to the technical means for realizing the rotation in the prior art.

Referring to fig. 1 to 3, the working principle of the bearing reinforced grinding apparatus in the present embodiment is:

Taking the operating module of a three-phase flow as an example, the separating screen 12 is installed.

When the electromagnetic centerless fixture works, a bearing a to be machined is clamped on the electromagnetic centerless fixture, and the angle of the high-speed spray head 2 is adjusted to enable the spray nozzle of the high-speed spray head to face the outer surface of the bearing a; the method comprises the following steps of putting grinding materials and grinding liquid on a putting hopper 8, opening a first valve body 10, enabling the grinding liquid to fall into a storage container 3 below a temporary storage hopper 9 through a separation screen 12, and closing the first valve body 10; opening the second valve body 11 and the third valve body 18, starting the delivery pump 5 and the pneumatic conveyor 7, and respectively conveying the grinding fluid and the grinding material (consisting of steel balls) to the high-speed spray head 2 through the first conveying pipeline 4 and the second conveying pipeline 6, wherein because the tail ends of the conveying pipelines and the second conveying pipeline 6 are combined together, after the grinding fluid and the grinding material are combined, the fourth valve body 19 is opened, the second high-pressure pipeline 17 further provides high-pressure gas, and the mixture formed by the grinding fluid and the grinding material is highly sprayed onto the processing surface of the bearing a through the high-speed spray head 2; the mixture formed by the grinding fluid and the abrasive impacts the surface of the bearing a at a high speed, so that the surface of the bearing a obtains larger residual compressive stress, and the mechanical property and the service life of the bearing a are favorably improved.

Further, under the protection of the processing protection box body 1 and the gravity action of the grinding materials, the grinding materials and the grinding liquid after impact can fall down and pass through the bottom end of the processing protection box body 1 to fall into the temporary storage hopper 9; wherein, because the bottom of the temporary storage hopper 9 is provided with a separation screen 12 (the mesh size is smaller than the steel ball size of the grinding material), the liquid grinding fluid can continuously pass through the separation screen 12 and fall into the storage container 3, while the solid grinding material can continuously stay on the temporary storage hopper 9; after the above recovery, the abrasives and the polishing liquid are returned to their respective storage points, and then the abrasives and the polishing liquid are circularly conveyed under the drive of the conveying pump 5 and the pneumatic conveyor 7, and the bearing a is circularly sprayed until the machining is finished.

The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.