CN110653727A - Pneumatic type strengthening processing equipment for processing bearing outer ring raceway - Google Patents
Pneumatic type strengthening processing equipment for processing bearing outer ring raceway Download PDFInfo
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- CN110653727A CN110653727A CN201910939398.8A CN201910939398A CN110653727A CN 110653727 A CN110653727 A CN 110653727A CN 201910939398 A CN201910939398 A CN 201910939398A CN 110653727 A CN110653727 A CN 110653727A
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- feeding
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- outer ring
- grinding
- pipeline
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
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- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses pneumatic type strengthening processing equipment for processing a raceway of an outer ring of a bearing, which comprises a strengthening processing module and a grinding feeding module, wherein the grinding feeding module comprises a high-pressure feeding module; the reinforced processing module comprises a processing box body and a reinforced processing mechanism, the reinforced processing mechanism comprises a clamping mechanism and a circumferential injection mechanism, and the circumferential injection mechanism comprises a circumferential spray head and a rotary driving motor; the circumferential nozzle comprises a feeding end and a distributing end, and the distributing end is arranged in the center of the clamped bearing outer ring; the inner cavity of the feeding end forms a feeding channel, one end of the feeding channel is communicated with a feeding pipeline at the tail end of the high-pressure feeding module, and the other end of the feeding channel is communicated with the material distributing end; a plurality of spraying channels are arranged inside the distributing end, the head ends of the spraying channels are communicated with the feeding channel, and the tail ends of the spraying channels extend out of the distributing end. The strengthening processing equipment can strengthen the outer ring raceway of the bearing, and is particularly suitable for processing the outer ring raceway of the miniature bearing.
Description
Technical Field
The invention relates to a reinforced grinding processing device, in particular to pneumatic reinforced processing equipment for processing a raceway of an outer ring of a bearing.
Background
The bearing is a basic part in most mechanical equipment, is more a supporting point for power and movement, directly influences the running performance of the whole equipment and the realization of an expected function, the maximum resistance of the development of the industry in China to a high and new field is lack of a high-end bearing, most of the bearings for the high-end bearing depend on import, and according to the 'thirteen-five' plan, the state clearly provides a requirement for mainly promoting the manufacturing technology and the quality level of the bearing in China so as to adapt to the development requirement of 'four-high' (high precision, high speed, high bearing and high reliability) of the bearing application. The damage 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.
The conventional strengthening grinding machine can only carry out strengthening grinding processing on the bearing inner ring raceway, for example, a strengthening grinding machine for a bearing disclosed in application publication No. CN104942664A, which directly mixes strengthening grinding materials and strengthening grinding liquid by high-pressure gas and then processes a workpiece, and this way cannot process the bearing outer ring raceway, especially the outer ring raceway of a micro bearing.
Disclosure of Invention
The invention aims to overcome the existing problems and provides pneumatic strengthening processing equipment for processing an outer ring raceway of a bearing, which can strengthen the outer ring raceway of the bearing and is particularly suitable for processing the outer ring raceway of a miniature bearing.
The purpose of the invention is realized by the following technical scheme:
a pneumatic type strengthening processing device for processing a bearing outer ring raceway comprises a strengthening processing module and a grinding feeding module, wherein the grinding feeding module comprises a high-pressure feeding module; the reinforced processing module comprises a processing box body and a reinforced processing mechanism, and the reinforced processing mechanism is arranged in the processing box body through a fixed connecting structure;
the reinforced machining mechanism comprises a clamping mechanism for clamping and fixing the outer ring of the bearing and a circumferential injection mechanism for injecting grinding materials to the outer ring raceway of the bearing, wherein the circumferential injection mechanism comprises a circumferential nozzle and a rotary driving motor for driving the circumferential nozzle to rotate; the circumferential nozzle comprises a feeding end and a distributing end, and the distributing end is arranged in the center of the clamped bearing outer ring; the inner cavity of the feeding end forms a feeding channel, one end of the feeding channel is communicated with a feeding pipeline at the tail end of the high-pressure feeding module, and the other end of the feeding channel is communicated with the material distributing end; the material distributing end is internally provided with a plurality of spraying channels which are arranged along the circumferential direction, the head ends of the spraying channels are communicated with the feeding channel, and the tail end extends out of the material distributing end from the center.
The working principle of the pneumatic type strengthening processing equipment is as follows:
when the device works, the outer ring of the bearing is fixed through the clamping mechanism, at the moment, the outer ring of the bearing is positioned on the outer side of the distributing end of the circumferential sprayer, and the outer ring roller path of the bearing faces the outlet of the spraying channel of the distributing end; then starting the high-pressure feeding module to quickly convey the grinding materials to the circumferential spray heads; the feeding end of the circumferential spray head is communicated with the tail end feeding pipeline of the high-pressure feeding module, so that the high-speed grinding material conveyed by the high-pressure feeding module in a pressurized mode can be received; furthermore, after the high-speed grinding materials are fed into the feeding end, the high-speed grinding materials are distributed to the plurality of injection channels of the distribution end through the feeding channel and then are respectively sprayed out from the plurality of injection channels with different orientations, and the outer ring of the bearing is positioned on the outer side of the distribution end of the circumferential spray head, so that the grinding materials sprayed at a high speed by each injection channel can impact the outer ring pipeline of the bearing.
Then, a rotary driving motor is started to drive the circumferential sprayer to rotate, so that the grinding material sprayed in the original fixed direction can be swept for 360 degrees along the circumferential direction, and the processing effect of the outer ring raceway of the bearing can be more uniform.
In a preferred embodiment of the present invention, the fixed connection structure includes a first support frame and a second support frame, and the rotation driving motor is disposed on the second support frame;
the clamping mechanism is arranged on a workbench, and the workbench is arranged on the first support frame.
Preferably, a lifting adjusting structure is arranged between the workbench and the first support frame and comprises a rotating hand wheel, an adjusting screw rod is arranged on the rotating hand wheel, and the adjusting screw rod abuts against the workbench after penetrating through a threaded hole in the first support frame. Through the structure, the height of the workbench can be adjusted, and the outer ring of the bearing is convenient to clamp.
Further, still be equipped with vertical guide structure between workstation and the first support frame, this vertical guide structure includes guide post and guiding hole, the guide post sets up on first support frame, the guiding hole sets up on the workstation.
Preferably, the center of the workbench is provided with a blanking round hole, and the diameter of the blanking round hole is 10% -20% smaller than that of the raceway of the outer ring of the bearing, so that the machined grinding materials are not accumulated near the raceway, and the outer ring of the bearing is prevented from falling downwards.
In a preferred embodiment of the present invention, the clamping mechanism includes a clamp for pressing the outer ring of the bearing against the table, and the clamp is fixed to the table by a threaded structure.
In a preferred embodiment of the present invention, a flow dividing top pillar is disposed in the inner cavity of the circumferential nozzle, and the top of the flow dividing top pillar is conical and extends into the feeding channel of the feeding end.
Preferably, the split-flow top column is made of boron carbide material, and boron carbide has high hardness and high strength, so that the boron carbide can be blocked in front of the high-speed grinding material and then split.
In a preferred embodiment of the present invention, the top of the feeding end is connected to the end feeding pipe by a rotary bearing, so that the circumferential spray head can rotate relative to the end feeding pipe.
In a preferred embodiment of the present invention, the high-pressure feeding module includes a feeding hopper, a first conveying pipeline, and a high-pressure conveyor, and the high-pressure conveyor introduces high-pressure gas into the first conveying pipeline through the first high-pressure pipeline; one end of the first conveying pipeline is communicated with the feeding hopper, and the other end of the first conveying pipeline forms the tail end feeding pipeline which is communicated with the circumferential spray head; the feeding hopper is arranged below the processing box body. Through the structure, grinding materials (such as steel balls and grinding powder) can be placed on the feeding hopper before processing, high-pressure gas is introduced into the high-pressure conveyor during processing, the high-pressure gas forms huge negative pressure in the first conveying pipeline, so that the grinding materials are quickly sucked onto the first conveying pipeline and then conveyed to the circumferential spray head, and the high-speed grinding materials respectively impact the outer ring raceway of the bearing from different directions after passing through the circumferential spray head; under the protection of the processing box body, the impacted grinding materials fall down and return to the feeding hopper, and then the grinding materials are processed continuously under the action of the high-pressure conveyor.
In a preferred embodiment of the present invention, the grinding and feeding module further comprises a liquid feeding mechanism and a solid-liquid separation mechanism, wherein the liquid feeding mechanism comprises a storage container for storing the grinding fluid, a second conveying pipeline for conveying the grinding fluid, and a conveying pump for providing a conveying pressure in the second conveying pipeline; the head end of the second conveying pipeline is communicated with the storage container, and the tail end of the second conveying pipeline is converged with the tail end feeding pipeline of the first conveying pipeline;
the solid-liquid separation mechanism comprises a separation screen used for realizing the separation of grinding fluid and grinding materials, the storage container is positioned below the feeding hopper, and the separation screen is arranged at the bottom of the feeding hopper and communicated with an opening of the storage container. Through the structure, not only can add the lapping liquid and strike the outer lane raceway of bearing, but also can realize solid-liquid separation after mixing the striking, the lapping liquid and the abrasive material that mix together deposit respectively after the isolation of separation screen cloth, the in-process at the endless conveyor (feed) has realized carrying alone, so not only can effectively reduce the phenomenon that the pipeline blockked up appears, and after the bearing processing finishes, because lapping liquid and abrasive material have been separated by separation screen cloth, realize the categorised recovery of abrasive material, staff's recovery efficiency has been improved widely.
In a preferred embodiment of the present invention, the supply 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 first 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 first conveying pipeline is connected to the inclined bottom, and the sufficient grinding materials are conveyed.
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 door modes: three-phase flow (millbase, grinding fluid, gas) or two-phase flow (millbase, 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 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 first conveying pipeline; starting the conveying pump and the conveyor, conveying cleaning water by the second conveying pipeline and the first conveying pipeline, feeding the cleaning water into the processing hopper along a conveying path for processing, cleaning the interior of the processing box body, and finally returning the cleaning water to the 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 first conveying pipe; the pneumatic conveyor is communicated with a first high-pressure pipeline for providing gas. Through using the pneumatic conveyor, combining the gas that first high-pressure pipeline provided, realized the transport of abrasive, solved the problem that the abrasive takes place to block up moreover effectively.
Preferably, the end feeding pipeline of the first conveying pipeline is provided with a second high-pressure pipeline communicated with the end feeding pipeline for secondarily supplying high-pressure gas. 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 spray the mixture from the circumferential spray head at a high enough speed; in order to solve the above problem, it is preferable that a second high-pressure pipeline is provided, and after the grinding fluid and the grinding powder are mixed, the second high-pressure pipeline provides high-pressure gas to pressurize the mixture, so that the mixture can be ejected from the circumferential nozzle at a sufficiently high speed.
In a preferred embodiment of the present invention, the second delivery pipeline, the feeding hopper, the first high-pressure pipeline, and the second high-pressure pipeline are respectively provided with a first valve body, a second valve body, a third valve body, and a fourth valve body.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the spraying mechanism capable of carrying out circumferential spraying is arranged in the outer ring of the bearing, so that the reinforced processing of the outer ring raceway of the bearing is realized for the first time, the outer ring raceway of the bearing can also obtain a reinforced grinding layer, and the mechanical property and the service life of the bearing are further improved.
2. Based on the conveying power that the high pressure feed module provided for abrasive material can be from the injection pipeline blowout of a plurality of different orientations at a high speed, strikes the outer lane raceway of bearing respectively, again under the drive of rotary drive motor, drives the circumference shower nozzle and rotates, makes the abrasive material that original fixed direction jetted can carry out 360 degrees "sweeps along the direction of circumference, can let the processing effect of the outer lane raceway of bearing more even.
3. The reinforced processing equipment is particularly suitable for processing small or miniature bearing outer rings because the power of the injection is derived from the conveying power of the high-pressure feeding module, and the smaller the size of the circumferential spray head (the shorter the injection pipeline at the shunting end), the smaller the resistance caused on the grinding material and the higher the injection speed of the grinding material.
4. The rotary driving motor only realizes the circumferential rotation (the rotating speed is low) of the circumferential spray head, aims to continuously switch the spraying direction of the grinding material and substantially influences the spraying speed of the grinding material, and does not adopt other power mechanisms to accelerate the grinding material except the high-pressure feeding module, so that the strengthened processing equipment of the invention has low vibration in the actual processing process, thereby indirectly improving the processing precision.
Drawings
FIG. 1 is a schematic structural diagram of a pneumatic strengthening processing device for processing a raceway of an outer ring of a bearing in the invention.
Fig. 2 is an enlarged view of X in fig. 1.
Fig. 3 is a schematic perspective view of the strengthening mechanism of the present invention.
Fig. 4 is a sectional view of a circumferential spray head in the present invention.
Fig. 5 is an enlarged view of Y in fig. 1.
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, the pneumatic type strengthening processing device for processing the bearing outer ring raceway in the embodiment includes a strengthening processing module and a grinding feeding module, where the grinding feeding module includes a high-pressure feeding module, a liquid feeding mechanism, and a solid-liquid separation mechanism; the strengthening processing module comprises a processing box body 1 and a strengthening processing mechanism, and the strengthening processing mechanism is arranged in the processing box body 1 through a fixed connection structure.
Referring to fig. 1-4, the strengthening processing mechanism includes a clamping mechanism for clamping and fixing an outer ring a of the bearing and a circumferential injection mechanism for injecting a grinding material to a raceway of the outer ring a of the bearing, and the circumferential injection mechanism includes a circumferential nozzle 2 and a rotary driving motor 3 for driving the circumferential nozzle 2 to rotate; the circumferential nozzle 2 comprises a feeding end 2-1 and a distributing end 2-2, and the distributing end 2-2 is arranged in the center of the clamped bearing outer ring a; the inner cavity of the feeding end 2-1 forms a feeding channel 2-1-1, one end of the feeding channel 2-1-1 is communicated with a feeding pipeline at the tail end of the high-pressure feeding module, and the other end of the feeding channel is communicated with the material distributing end 2-2; the interior of the material distribution end 2-2 is provided with a plurality of injection channels 2-2-1 which are arranged along the circumferential direction, the head ends of the injection channels 2-2-1 are communicated with the material feeding channel 2-1-1, and the tail ends of the injection channels extend out of the material distribution end 2-2 from the center. Specifically, in the present embodiment, the number of the ejection channels 2-2-1 is not less than 4.
Referring to fig. 1, the high-pressure feeding module comprises a feeding hopper, a first conveying pipeline 4 and a high-pressure conveyor 5, wherein the high-pressure conveyor 5 feeds high-pressure gas into the first conveying pipeline 4 through a first high-pressure pipeline 22; one end of the first conveying pipeline 4 is communicated with the feeding hopper, and the other end of the first conveying pipeline forms the tail end feeding pipeline which is communicated with the circumferential spray head 2; the feeding hopper is arranged below the processing box body 1. Through the structure, grinding materials (such as steel balls and grinding powder) can be placed on the feeding hopper before processing, high-pressure gas is introduced into the high-pressure conveyor 5 during processing, the high-pressure gas forms huge negative pressure in the first conveying pipeline 4, so that the grinding materials are quickly sucked onto the first conveying pipeline 4 and then conveyed to the circumferential spray head 2, and the high-speed grinding materials respectively impact the outer ring a raceway of the bearing from different directions after passing through the circumferential spray head 2; under the protection of the processing box body 1, the impacted grinding materials fall down and return to the feeding hopper, and then under the action of the high-pressure conveyor 5, continuous processing is formed. Specifically, the high-pressure conveyor 5 in the present embodiment is composed of a pneumatic conveyor.
Referring to fig. 1-3, the fixed connection structure includes a first support frame 6 and a second support frame 7, and the rotary driving motor 3 is disposed on the second support frame 7; the clamping mechanism is arranged on a workbench 8, and the workbench 8 is arranged on the first support frame 6. The rotary driving motor 3 is connected with the circumferential spray head 2 through a synchronous belt structure.
A lifting adjusting structure is arranged between the workbench 8 and the first support frame 6 and comprises a rotating hand wheel 26, an adjusting screw rod is arranged on the rotating hand wheel 26 and props against the workbench 8 after penetrating through a threaded hole in the first support frame 6. Through the structure, the height of the workbench 8 can be adjusted, and the outer ring a of the bearing can be clamped conveniently.
Further, a vertical guide structure is further arranged between the workbench 8 and the first support frame 6, the vertical guide structure comprises a guide column 6-1 and a guide hole, the guide column 6-1 is arranged on the first support frame 6, and the guide hole is arranged on the workbench 8.
Specifically, the center of the workbench 8 is provided with a blanking circular hole, and the diameter of the blanking circular hole is 10% -20% smaller than that of the raceway of the outer ring a of the bearing, so that the machined grinding materials are not accumulated near the raceway, and the outer ring a of the bearing is prevented from falling downwards.
Referring to fig. 3, the clamping mechanism comprises a clamp 9 for pressing the outer ring a of the bearing on the workbench 8, and the clamp 9 is fixed on the workbench 8 through a threaded structure. The clamps 9 are four, three or five or even more, and are arranged along the circumferential direction.
Referring to fig. 4, a diversion top pillar 10 is arranged in the inner cavity of the circumferential nozzle 2, and the top of the diversion top pillar 10 is conical and extends into the feeding channel 2-1-1 of the feeding end 2-1. The split stream top pillar 10 is made of boron carbide material, and boron carbide has high hardness and high strength, so that the boron carbide can be blocked in front of high-speed grinding materials and then split.
Further, the top of the feeding end 2-1 is connected with the end feeding pipeline through a rotating bearing, so that the circumferential spray head 2 can rotate relative to the end feeding pipeline.
Referring to fig. 1 and 5, the liquid supply mechanism includes a storage container 11 for storing the abrasive liquid, a second delivery pipe 12 for delivering the abrasive liquid, and a delivery pump 13 for providing a delivery pressure in the second delivery pipe 12; the head end of the second conveying pipeline 12 is communicated with the storage container 11, the tail end of the second conveying pipeline is converged with the tail end feeding pipeline of the first conveying pipeline 4, and a first valve body 14 is arranged on the second conveying pipeline 12; the solid-liquid separation mechanism comprises a separation screen 15 used for separating grinding fluid and grinding materials, the storage container 11 is located below the feeding hopper, and the separation screen 15 is arranged at the bottom of the feeding hopper and communicated with an opening of the storage container 11. Through the structure, not only can add the lapping liquid and strike the outer lane a raceway of bearing, but also can realize solid-liquid separation after mixing the striking, the lapping liquid and the abrasive material that mix together deposit respectively after the isolation of separation screen 15, realized carrying alone at the in-process of circulating transport (feed), so not only can effectively reduce the phenomenon that the pipeline blockked up appears, and after the bearing processing finishes, because lapping liquid and abrasive material have been separated by separation screen 15, realize the categorised recovery of abrasive material, staff's recovery efficiency has been improved widely.
Specifically, a three-way pipe joint is arranged at the junction of the first conveying pipeline 4 and the tail end of the second conveying pipeline 12, and the three-way pipe joint is connected with the first conveying pipeline 4 and the second conveying pipeline 12 (both rubber pipes) by adopting internal thread joints; the three-way pipe joint forms the tail end feeding pipeline.
Referring to fig. 1 and 5, the supply hopper comprises a feeding hopper 16 for storing the abrasive and the grinding fluid before the work starts and a temporary storage hopper 17 for storing the abrasive during the work, wherein the temporary storage hopper 17 is communicated with a discharge port of the feeding hopper 16; the feeding hopper 16 is provided with a second valve body 18. Before the work starts, the worker places the abrasives and the grinding fluid in the feeding hopper 16, and when the work starts, the switch or the valve is opened, so that the abrasives and the grinding fluid enter the temporary storage hopper 17, and the solid-liquid separation and conveying work is started.
The separation screen 15 is obliquely inserted into the inner cavity of the storage container 11 to divide the inner cavity of the storage container 11 into an upper space and a lower space; wherein, the separation screen 15 is used as the bottom surface, and the space above the separation screen forms the temporary storage hopper 17; the space below is a storage space for storing the separated grinding fluid. Specifically, the inclination angle of the separation screen 15 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 one storage container 11, 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 first conveying pipeline 4 is connected to the side wall of the lower end of the temporary storage hopper 17, and in the working process, after the grinding materials fall into the temporary storage hopper 17, the grinding materials below the temporary storage hopper can move downwards along the inclined separation screen 15, so that the grinding materials are stacked at the inclined bottom, the head end of the first conveying pipeline 4 is connected to the inclined bottom, and sufficient grinding materials are conveyed.
Referring to fig. 1 and 5, one of the side walls of the storage container 11 is provided with a mounting hole, and the other side wall opposite to the side wall is provided with at least one support block 19 located below a level at which the mounting hole is located. Through the structure, one end of the separating screen 15 can pass through the mounting hole to be supported on the supporting block 19, and the other end of the separating screen 15 is lapped in the mounting hole, so that the separating screen 15 is mounted; wherein the separating screen 15 is disposed in the storage container 11 in an inclined posture so as to gather the falling abrasives together, since the holding block 19 opposite to the mounting hole is located below the mounting hole.
Referring to fig. 1 and 5, the solid-liquid separation mechanism in the present embodiment further includes a sealing plate, which is installed at the same position as the separation screen 15 and is the same position as the storage container 11; when the separating screen 15 is installed in the storage container 11, three-phase flow processing is realized; when the sealing plate is installed in the storage container 11, two-phase flow processing is achieved. Above-mentioned structure, through switching closing plate and separation screen 15, can realize different processing door modes: three-phase flow (millbase, grinding fluid, gas) or two-phase flow (millbase, gas).
Referring to fig. 1 and 5, a first outlet for discharging the grinding fluid in the container is arranged at the bottom of the storage container 11, a first outlet switch 20 is arranged at the first outlet, and the first outlet switch 20 is a stop plug; the bottom of the temporary storage hopper 17 is provided with a second discharge port for discharging the grinding material in the hopper, and the second discharge port is provided with a second discharge switch 21, and the second discharge switch 21 is a stop valve. 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 20 and a second discharge switch 21 to discharge all the grinding fluid and the grinding materials, adding cleaning water to the feeding hopper 16, wherein the cleaning water flows to the temporary storage hopper 17 and then stays in the storage container 11 through the separation screen 15, and the amount of the added water is enough to meet the requirement of cleaning the first conveying pipeline 4; starting the conveying pump 13 and the conveyor, conveying cleaning water by the second conveying pipeline 12 and the first conveying pipeline 4, feeding the cleaning water into the processing hopper along a conveying path for processing, cleaning the interior of the processing box body 1, and finally returning the cleaning water to the storage container 11; 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.
Referring to fig. 1 and 5, the high-pressure conveyor 5 is disposed in the middle of the first conveying pipe 4; the high-pressure conveyor 5 is communicated with a first high-pressure pipeline 22 for providing gas, and a third valve body 23 is arranged on the first high-pressure pipeline 22 in a communication mode. By using the high-pressure conveyor 5 in combination with the gas supplied by the first high-pressure pipe 22, the conveyance of the abrasives is achieved, and the problem of clogging of the abrasives is effectively solved.
Further, the end feeding pipeline of the first conveying pipeline 4 is provided with a second high-pressure pipeline 24 communicated with the end feeding pipeline for providing high-pressure gas for the second time, and a fourth valve body 25 is arranged on the second high-pressure pipeline 24. Generally, under the action of the high-pressure gas and the high-pressure conveyor 5, the grinding material is conveyed upwards from the temporary storage hopper 17 through the second conveying roller path and is further mixed with the grinding liquid, in the process, the grinding material needs 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 circumferential spray head 2 at a fast enough speed; in order to solve the above problem, in the present embodiment, by providing the second high-pressure pipeline 24, after the grinding fluid and the grinding powder are mixed, the second high-pressure pipeline 24 provides high-pressure gas to pressurize the mixture, so that the mixture can be ejected from the circumferential nozzle 2 at a sufficiently fast speed.
Referring to fig. 1 to 5, the pneumatic type intensive processing apparatus in the present embodiment operates on the principle that:
when the device works, the outer ring a of the bearing is fixed through the clamping mechanism, at the moment, the outer ring a of the bearing is positioned on the outer side of the material distribution end 2-2 of the circumferential spray head 2, and the roller path of the outer ring a of the bearing faces the outlet of the injection channel 2-2-1 of the material distribution end 2-2; then starting the high-pressure feeding module to quickly convey the grinding materials to the circumferential spray head 2; the feeding end 2-1 of the circumferential spray head 2 is communicated with the tail end feeding pipeline of the high-pressure feeding module, so that the high-speed grinding material conveyed by the high-pressure feeding module in a pressurized mode can be received; further, after the high-speed grinding materials are fed into the feeding end 2-1, the high-speed grinding materials are distributed into the plurality of injection channels 2-2-1 of the distributing end 2-2 through the feeding channel 2-1-1 and then are respectively injected out from the plurality of injection channels 2-2-1 with different directions, and the outer ring a of the bearing is located on the outer side of the distributing end 2-2 of the circumferential nozzle 2, so that the grinding materials injected at a high speed by each injection channel 2-2-1 can impact the outer ring a pipeline of the bearing.
Then, the rotary driving motor 3 is started to drive the circumferential nozzle 2 to rotate, so that the grinding material sprayed in the original fixed direction can be swept in a 360-degree manner along the circumferential direction, and the processing effect of the outer ring a raceway of the bearing can be more uniform.
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.
Claims (10)
1. The pneumatic type strengthening processing equipment for processing the bearing outer ring raceway comprises a strengthening processing module and a grinding feeding module, and is characterized in that the grinding feeding module comprises a high-pressure feeding module; the reinforced processing module comprises a processing box body and a reinforced processing mechanism, and the reinforced processing mechanism is arranged in the processing box body through a fixed connecting structure;
the reinforced machining mechanism comprises a clamping mechanism for clamping and fixing the outer ring of the bearing and a circumferential injection mechanism for injecting grinding materials to the outer ring raceway of the bearing, wherein the circumferential injection mechanism comprises a circumferential nozzle and a rotary driving motor for driving the circumferential nozzle to rotate; the circumferential nozzle comprises a feeding end and a distributing end, and the distributing end is arranged in the center of the clamped bearing outer ring; the inner cavity of the feeding end forms a feeding channel, one end of the feeding channel is communicated with a feeding pipeline at the tail end of the high-pressure feeding module, and the other end of the feeding channel is communicated with the material distributing end; the material distributing end is internally provided with a plurality of spraying channels which are arranged along the circumferential direction, the head ends of the spraying channels are communicated with the feeding channel, and the tail end extends out of the material distributing end from the center.
2. The pneumatic type reinforcement machining equipment for machining the bearing outer ring raceway as claimed in claim 1, wherein the fixed connection structure comprises a first support frame and a second support frame, and the rotary driving motor is disposed on the second support frame;
the clamping mechanism is arranged on a workbench, and the workbench is arranged on the first support frame.
3. The pneumatic type strengthening processing equipment for processing the bearing outer ring raceway as claimed in claim 2, wherein a lifting adjusting structure is provided between the worktable and the first supporting frame, the lifting adjusting structure includes a rotating hand wheel, an adjusting screw is provided on the rotating hand wheel, and the adjusting screw passes through a threaded hole on the first supporting frame and then abuts against the worktable.
4. The pneumatic type reinforcement processing equipment for processing the raceway of the outer ring of the bearing as claimed in claim 1, wherein a split top pillar is arranged in the inner cavity of the circumferential nozzle, and the top of the split top pillar is conical and extends into a feeding channel of a feeding end; the flow dividing top column is made of boron carbide materials.
5. The pneumatic type strengthening processing equipment for processing the bearing outer ring raceway according to any one of claims 1 to 4, wherein the high-pressure feeding module comprises a feeding hopper, a first conveying pipeline, and a high-pressure conveyor which feeds high-pressure gas into the first conveying pipeline through the first high-pressure pipeline; one end of the first conveying pipeline is communicated with the feeding hopper, and the other end of the first conveying pipeline forms the tail end feeding pipeline which is communicated with the circumferential spray head; the feeding hopper is arranged below the processing box body.
6. The pneumatic type intensive processing equipment for processing the bearing outer ring raceway as claimed in claim 5, wherein the grinding feed module further comprises a liquid feed mechanism and a solid-liquid separation mechanism, the liquid feed mechanism comprising a storage container for storing the grinding liquid, a second conveying pipe for conveying the grinding liquid, and a conveying pump for providing a conveying pressure in the second conveying pipe; the head end of the second conveying pipeline is communicated with the storage container, and the tail end of the second conveying pipeline is converged with the tail end feeding pipeline of the first conveying pipeline;
the solid-liquid separation mechanism comprises a separation screen used for realizing the separation of grinding fluid and grinding materials, the storage container is positioned below the feeding hopper, and the separation screen is arranged at the bottom of the feeding hopper and communicated with an opening of the storage container.
7. The pneumatic reinforced machining equipment for machining the bearing outer ring raceway as claimed in claim 6, wherein the supply hopper comprises a throwing 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, the temporary storage hopper being communicated with a discharge port of the throwing 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.
8. The pneumatic type intensive processing equipment for processing the bearing outer ring raceway as claimed in claim 6, 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.
9. The pneumatic type strengthening processing equipment for processing the bearing outer ring raceway as claimed in claim 7, wherein the inclination angle of the separating screen is 45 ° -90 °, and the side length of the mesh is 0.3mm-0.5mm smaller than the diameter of the abrasive steel balls.
10. The pneumatic type strengthening processing equipment for processing the bearing outer ring raceway as claimed in claim 5, wherein the high-pressure conveyor is a pneumatic conveyor and is arranged in the middle of the first conveying pipeline; the pneumatic conveyor is communicated with a first high-pressure pipeline for providing gas;
and the end feeding pipeline of the first conveying pipeline is provided with a second high-pressure pipeline communicated with the feeding pipeline for providing high-pressure gas for the second time.
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| CN201910939398.8A CN110653727A (en) | 2019-09-29 | 2019-09-29 | Pneumatic type strengthening processing equipment for processing bearing outer ring raceway |
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| CN201910939398.8A CN110653727A (en) | 2019-09-29 | 2019-09-29 | Pneumatic type strengthening processing equipment for processing bearing outer ring raceway |
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| CN113584295A (en) * | 2021-07-12 | 2021-11-02 | 广州大学 | Ultrasonic strengthening processing device for bearing outer ring raceway |
| CN114700881A (en) * | 2022-03-30 | 2022-07-05 | 深圳大华轴承有限公司 | Special miniature bearing inner race burnishing device |
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