Oil return system for bearing grinding machining

Abstract

The invention relates to the technical field of bearing manufacturing, and discloses an oil return system for bearing grinding machining, which comprises a treatment box, a guide rail is arranged in the treatment box, a dirt collecting tank is fixedly mounted on the lower side of the treatment box, a cleaning and drying assembly is arranged in the treatment box, and a machining box is fixedly mounted on the left side of the treatment box. A grinding assembly is arranged in the machining box, a base is fixedly installed on the lower side of the machining box, an oil tank is fixedly installed in the base, an oil pump is fixedly installed on the upper side of the oil tank, a columnar oil spraying pipe fixedly communicates with the upper side of the oil pump, and a filtering and sewage discharging mechanism is arranged in the base. Through the synergistic effect of the cleaning and drying assembly and the dirt collection treatment structure, the pollution problems that traditional manual cleaning is not thorough and waste liquid is discharged at will are solved, the surface quality of the bearing is guaranteed, the environment-friendly manufacturing concept is met, and the environment-friendly treatment cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing manufacturing, in particular to an oil return system for bearing grinding processing. BACKGROUND

[0002] In the whole process of bearing manufacturing, grinding processing is the core process that determines the final precision of the bearing, directly affecting the assembly performance and service life of the bearing. During bearing grinding, the high-speed rotating grinding wheel and the high-hardness bearing steel surface undergo intense friction, which generates a large amount of heat instantaneously. If the heat cannot be dissipated in time, it is easy to cause defects such as burning and cracking on the surface of the workpiece, destroy the metallographic structure of the bearing steel, and cause precision out-of-tolerance. At the same time, a large amount of metal debris and grinding wheel wear particles are generated during the grinding process. If these impurities accumulate in the grinding area, they will scratch the processed surface with the rotation of the grinding wheel, aggravate the wear of the grinding wheel, and reduce the processing precision. Therefore, it is necessary to continuously spray grinding fluid to the grinding area to quickly remove heat through its cooling performance, reduce the friction coefficient through lubrication, and timely remove the debris through fluid impact force, so as to ensure the processing quality and the service life of the grinding wheel.

[0003] However, most of the equipment adopts an open drainage design, and the grinding fluid is directly discharged or reused after simple filtration, which cannot effectively remove small iron filings and grinding wheel particles, leading to rapid contamination of the grinding fluid. This not only affects the cooling and lubrication effect, but also aggravates the scratching of the workpiece and the wear of the equipment. The grinding fluid needs to be frequently replaced, increasing the production cost. The bearings after grinding need to be manually transported to the cleaning and drying stations, or transported through a simple conveyor belt. Due to the lack of precise guiding and positioning structure, the workpiece is easy to deviate and jam, leading to incomplete cleaning or uneven drying in the subsequent process, affecting the surface quality of the bearing. At the same time, the replacement of the filter screen of the filtering assembly, the circulation control of the grinding fluid, and the positioning of the workpiece during transportation rely on manual operation, which not only increases the labor intensity, but also easily leads to filtering failure and process interruption due to human error. It is difficult to meet the needs of efficiency and stability in large-scale production. The direct discharge of unfiltered waste liquid will cause environmental pollution, and the high consumption of grinding fluid and the disorderly treatment of wastewater will further increase the environmental protection cost, which does not meet the development trend of green manufacturing. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an oil return system for bearing grinding processing, which solves the problems of resource waste and workpiece scratching caused by incomplete filtration of grinding fluid in traditional bearing grinding processing, quality fluctuation caused by unstable process connection, low efficiency caused by low automation, and environmental pollution caused by waste liquid discharge.

[0005] In order to achieve the above object, the present application is realized by the following technical scheme: An oil return system for bearing grinding processing, comprising a processing box, a guide rail is arranged in the processing box, a sewage collecting tank is fixedly installed on the lower side of the processing box, a cleaning and drying assembly is arranged in the processing box, a processing box is fixedly installed on the left side of the processing box, a grinding assembly is arranged in the processing box, a base is fixedly installed on the lower side of the processing box, an oil tank is fixedly installed in the base, an oil pump is fixedly installed on the upper side of the oil tank, a cylindrical oil injection pipe is fixedly communicated with the upper side of the oil pump, a filtering and sewage discharge mechanism is arranged in the base, an oil outlet is formed in the processing box, the cylindrical oil injection pipe is arranged on the upper side of the oil outlet, a conveying belt one is arranged on the rear side of the processing box, a guide assembly is arranged on the conveying belt one, a conveying belt two is fixedly installed on the front side of the processing box, and an adjusting assembly is arranged on the conveying belt two; the filtering and sewage discharge mechanism comprises a motor two, the motor two is fixedly installed on the lower side of the oil tank, a rotating sewage discharge plate is fixedly connected to the output end of the motor two, a discharge pipe is fixedly communicated with the left side of the oil tank, an electromagnetic valve is fixedly installed on the outer side of the discharge pipe, and a filtering assembly is arranged on the right side of the oil tank.

[0006] Preferably, the grinding assembly comprises a motor one, the motor one is fixedly installed on the inner wall of the processing box, and a grinding wheel is fixedly installed on the output end of the motor one.

[0007] Preferably, the filtering assembly comprises a motor three, the motor three is fixedly installed in the base, a rotating shaft is fixedly connected to the output end of the motor three, a fixed plate is rotatably connected to the right side of the rotating shaft, the fixed plate is fixedly installed on the inner wall of the base, a magnetic suction drum is fixedly installed on the outer side of the rotating shaft, a filtering box is fixedly installed on the lower side of the magnetic suction drum, a sliding rail is arranged in the filtering box, a fixed bolt is arranged in the sliding rail, a frame is arranged in the sliding rail, a honeycomb filter screen is fixedly installed in the frame, a handle is fixedly connected to the front side of the frame, a filter cartridge is fixedly communicated with the lower side of the filtering box, and the left side of the filter cartridge is communicated with the left side of the oil tank.

[0008] Preferably, the guide assembly comprises a positioning baffle, the positioning baffle is fixedly installed on the conveying belt one, a pneumatic cylinder is fixedly installed on the rear side of the conveying belt one, and a pushing block is fixedly connected to the output end of the pneumatic cylinder.

[0009] Preferably, the adjusting assembly comprises a connecting plate, the connecting plate is fixedly installed on the outer side of the conveying belt two, an adjusting plate is fixedly installed on the inner side of the connecting plate, a limiting groove is formed in the adjusting plate, a sliding rod is arranged in the adjusting plate, a limiting nut is threadedly connected to the upper side of the sliding rod, a fixed block is fixedly connected to the lower side of the sliding rod, and a limiting rod is fixedly connected to the lower side of the fixed block.

[0010] Preferably, the cleaning and drying assembly comprises a water tank fixedly installed on the lower side of the dirt collecting tank, a water pump fixedly installed on the front side of the water tank, a water spraying tank fixedly installed on the inner top of the processing tank, a spray head fixedly installed on the lower side of the water spraying tank, a hot air machine fixedly installed on the left side of the water tank, a hot air tank arranged on the front side of the water spraying tank, a blowing cover fixedly installed on the lower side of the hot air tank, a sewage discharge pipe fixedly communicated with the rear lower side of the dirt collecting tank, and an oil collecting tank arranged on the rear side of the conveying belt two.

[0011] Preferably, the water pump, the water spraying tank and the hot air machine and the hot air tank are communicated through pipes.

[0012] Preferably, the sliding rod is slidingly connected in the limiting groove, and the limiting rod is slidingly connected on the upper side of the conveying belt two.

[0013] Preferably, the front side of the guide rail is fixedly installed with a discharging plate, and the inner part of the discharging plate is provided with a discharging port.

[0014] Preferably, the left side of the base is fixedly installed with a controller, and the controller is electrically connected with the motor one, the oil pump, the motor three, the conveying belt one, the conveying belt two, the air cylinder, the water pump and the hot air machine.

[0015] The application provides an oil return system for bearing grinding machining. 1、The three-stage filtering combination of the magnetic suction roller, the honeycomb filter screen and the filter cartridge greatly improves the grinding fluid purification effect; the regular automatic sewage discharge design of the oil tank for precipitating impurities reduces the grinding fluid replacement frequency, reduces resource consumption, and the pull-out type installation structure of the filter screen facilitates quick maintenance, ensures filtering stability, and solves the cost waste problem caused by incomplete traditional filtering.

[0016] 2、The positioning baffle and the pushing block of the guide assembly and the adjustable limiting rod of the adjusting assembly realize accurate transmission of the bearing between processes, whether it is positioning and conveying after grinding or adaptive conveying of bearings of different specifications, without manual intervention, avoiding process interruption and quality fluctuation caused by manual transfer or inaccurate positioning, improving the coherence and stability of the machining process, and improving production efficiency.

[0017] 3、The bearing after machining is automatically cleaned, dried and sewage is collected through the cooperation of the cleaning and drying assembly and the dirt collecting and processing structure, the surface oil is removed through the spray head, the hot air is used for rapid drying to prevent rust, and the sewage is collected through the dirt collecting tank and the oil collecting tank, avoiding the incompleteness of traditional manual cleaning and the pollution problem of random discharge of waste liquid, which not only ensures the surface quality of the bearing, but also meets the green manufacturing concept and reduces the environmental protection treatment cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the present application; Figure 2 is a side view of the present application; Figure 3 is a schematic view of the internal structure of the processing box of the present application; Figure 4 is a schematic view of the internal structure of the base of the present application; Figure 5 is a schematic view of the internal structure of the filtering box of the present application; Figure 6 is a schematic view of the structure of the guiding assembly of the present application; Figure 7 is a schematic view of the structure of the cleaning and drying assembly of the present application; Figure 8 is a schematic view of the partial structure of the present application; Figure 9 is a schematic view of the structure of the adjusting assembly of the present application; Figure 10 is a schematic view of the partial structure of the present application.

[0019] wherein 1, processing box; 2, processing box; 3, grinding assembly; 31, motor one; 32, grinding wheel; 4, oil tank; 5, column-shaped oil injection pipe; 6, oil pump; 7, base; 8, oil outlet; 9, filtering and sewage discharging mechanism; 91, motor two; 92, rotating sewage discharging plate; 93, discharge pipe; 94, electromagnetic valve; 95, filtering assembly; 951, motor three; 952, magnetic suction roller; 953, fixed plate; 954, rotating shaft; 955, honeycomb filter screen; 956, filtering box; 957, sliding rail; 958, frame; 959, handle; 9510, fixed bolt; 9511, filter cartridge; 10, conveying belt one; 11, guiding assembly; 111, positioning baffle; 112, air cylinder; 113, pushing block; 12, guide rail; 13, sewage collecting tank; 14, cleaning and drying assembly; 141, water tank; 142, water pump; 143, water injection tank; 144, spray head; 145, hot air blower; 146, hot air tank; 147, air blowing cover; 148, sewage discharging pipe; 149, oil collecting tank; 15, discharge plate; 16, discharge outlet; 17, conveying belt two; 18, adjusting assembly; 181, connecting plate; 182, adjusting plate; 183, limiting groove; 184, sliding rod; 185, limiting nut; 186, limiting rod; 187, fixed block; 19, controller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the specification of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0021] Please refer to the drawings in the specification of the present application Figure 1 - the drawings in the specification of the present application Figure 6The embodiment of the present application provides a kind of oil return system for bearing grinding processing, including processing box 1, the inside of processing box 1 is provided with guide rail 12, the front side of guide rail 12 is fixedly installed with discharge plate 15, the inside of discharge plate 15 is opened with discharge port 16, the lower side of processing box 1 is fixedly installed with collecting tank 13, the inside of processing box 1 is provided with cleaning drying assembly 14, the left side of processing box 1 is fixedly installed with processing box 2, the inside of processing box 2 is provided with grinding assembly 3, grinding assembly 3 includes motor one 31, motor one 31 is fixedly installed on the inner wall of processing box 2, the output end of motor one 31 is fixedly installed with grinding wheel 32, the lower side of processing box 2 is fixedly installed with base 7, the inside of base 7 is fixedly installed with oil tank 4, the upper side of oil tank 4 is fixedly installed with oil pump 6, the upper side of oil pump 6 is fixedly communicated with columnar oil injection pipe 5, the inside of base 7 is provided with filter and pollution discharge mechanism 9, filter and pollution discharge mechanism 9 includes motor two 91, motor two 91 is fixedly installed on the lower side of oil tank 4, the output end of motor two 91 is fixedly connected with rotating pollution discharge plate 92, the left side of oil tank 4 is fixedly communicated with discharge pipe 93, the outer side of discharge pipe 93 is fixedly installed with electromagnetic valve 94, the right side of oil tank 4 is provided with filter assembly 95, filter assembly 95 includes motor three 951, motor three 951 is fixedly installed in the inside of base 7, the output end of motor three 951 is fixedly connected with rotating shaft 954, the right side of rotating shaft 954 is rotatably connected with fixed plate 953, the right side of fixed plate 953 is fixedly installed on the inner wall of base 7, the outer side of rotating shaft 954 is fixedly installed with magnetic attraction cylinder 952, the lower side of magnetic attraction cylinder 952 is fixedly installed with filter box 956, the inside of filter box 956 is provided with sliding rail 957, the inside of sliding rail 957 is provided with fixed bolt 9510, the inside of sliding rail 957 is provided with frame 958, the inside of frame 958 is fixedly installed with honeycomb filter screen 955, the front side of frame 958 is fixedly connected with handle 959, the lower side of filter box 956 is fixedly communicated with filter cartridge 9511, the left side of filter cartridge 9511 is communicated with the left side of oil tank 4, the inside of processing box 2 is opened with oil outlet 8, columnar oil injection pipe 5 is arranged at the upper side of oil outlet 8, the rear side of processing box 2 is provided with conveying belt one 10, conveying belt one 10 is provided with guide assembly 11, guide assembly 11 includes positioning baffle 111, positioning baffle 111 is fixedly installed on conveying belt one 10, the rear side of conveying belt one 10 is fixedly installed with air cylinder 112, the output end of air cylinder 112 is fixedly connected with push block 113, the front side of processing box 1 is fixedly installed with conveying belt two 17, conveying belt two 17 is provided with adjusting assembly 18; Specifically, first, the bearing enters the machining box 2 through the output channel on the upper side of the machining box 2. Inside the machining box 2, the operator starts the motor 31 through the controller 19. The motor 31 drives the grinding wheel 32 to rotate at high speed to grind the bearing entering the machining area. At the same time, the oil pump 6 in the base 7 extracts the grinding fluid from the oil tank 4. The grinding fluid is accurately delivered to the grinding area through the columnar oil pipe 5 to cool and lubricate the contact part of the grinding wheel 32 and the bearing, and to flush the metal chips generated during grinding. The waste liquid carrying the chips flows into the filtering and sewage discharge mechanism 9 through the oil outlet 8 at the bottom of the machining box 2. In the filtering and sewage discharge mechanism 9, the motor 951 drives the rotating shaft 954 and the outer magnetic suction drum 952 to rotate, using magnetic force to adsorb the iron filings in the waste liquid. The remaining waste liquid enters the filter box 956, where the honeycomb filter screen 955 fixed by the frame 958 intercepts the particles generated by the wear of the grinding wheel 32. The filter screen is installed through the sliding rail 957 and the fixing bolt 9510, and can be replaced by pulling the handle 959. The filtered waste liquid is returned to the oil tank 4 through the filter cartridge 9511 for recycling. The motor 91 at the lower side of the oil tank 4 drives the rotating sewage plate 92 periodically, which cooperates with the discharge pipe 93 and the electromagnetic valve 94 to discharge the impurities precipitated in the oil tank 4. The ground bearing enters the conveying belt 10 through the right side channel. When the conveying belt 10 is running, the positioning baffle 111 of the guide assembly 11 limits the bearing, and the air cylinder 112 pushes the push block 113 to adjust the position to ensure that the bearing enters the machining box 2 accurately, realizing multi-stage purification and circulation of the grinding fluid and accurate conveying of the bearing, reducing resource waste and ensuring the positioning accuracy of the machining.

[0022] Please refer to the attached Figure 7 -attached Figure 10 The cleaning and drying assembly 14 includes a water tank 141 fixedly installed on the lower side of the sewage collecting tank 13. A water pump 142 is fixedly installed on the front side of the water tank 141. A water spraying tank 143 is fixedly installed on the inner top of the processing box 1. A spray head 144 is fixedly installed on the lower side of the water spraying tank 143. A hot air blower 145 is fixedly installed on the left side of the water tank 141. A hot air tank 146 is provided on the front side of the water spraying tank 143. A blow cover 147 is fixedly installed on the lower side of the hot air tank 146. A sewage discharge pipe 148 is fixedly communicated on the rear lower side of the sewage collecting tank 13. An oil collecting tank 149 is provided on the rear side of the conveying belt 2. The water pump 142 and the water spraying tank 143, and the hot air blower 145 and the hot air tank 146 are all communicated through pipes. The controller 19 is fixedly installed on the left side of the base 7 and is electrically connected with the motor 31, the oil pump 6, the motor 951, the conveying belt 10, the conveying belt 2, the air cylinder 112, the water pump 142 and the hot air blower 145. Specifically, the ground bearing is sent into the processing box 1 through the conveying belt 10 and moves stably along the guide rail 12. The water pump 142 is started to draw clean water from the water tank 141, which is delivered to the water spraying tank 143 through the pipeline. The spray head 144 at the lower side of the water spraying tank 143 sprays clean water to the bearing surface to wash away the residual oil stains and impurities. The generated sewage flows into the sewage collecting tank 13 at the bottom of the processing box 1 and is then discharged into the oil collecting tank 149 through the sewage discharge pipe 148 for centralized treatment. Subsequently, the hot air blower 145 is started to generate hot air, which is delivered to the hot air tank 146 through the pipeline. The air blowing cover 147 at the lower side of the hot air tank 146 blows hot air to the bearing surface to quickly dry the moisture on the bearing surface. The automatic cleaning and drying of the bearing after processing are realized, the oil stains and moisture corrosion are avoided, the sewage is centralized for treatment, and the equipment environment is kept clean.

[0023] Please refer to the attached Figure 1 and attached Figure 9 The adjusting assembly 18 comprises a connecting plate 181 fixedly installed outside the conveying belt two 17, an adjusting plate 182 fixedly installed at the inner side of the connecting plate 181, a limiting groove 183 formed in the inner part of the adjusting plate 182, a sliding rod 184 arranged in the inner part of the adjusting plate 182, a limiting nut 185 threadedly connected to the upper side of the sliding rod 184, a fixed block 187 fixedly connected to the lower side of the sliding rod 184, a limiting rod 186 fixedly connected to the lower side of the fixed block 187, and the sliding rod 184 is slidingly connected in the inner part of the limiting groove 183, and the limiting rod 186 is slidingly connected to the upper side of the conveying belt two 17. Specifically, the cleaned bearing enters the conveying belt two 17 through the discharge port 16 of the discharge plate 15. When the conveying belt two 17 is running, the operator adjusts the position of the fixed block 187 by sliding the sliding rod 184 along the limiting groove 183 of the adjusting plate 182, and the fixed block 187 drives the limiting rod 186 to move synchronously to adjust the spacing. After the adjustment is completed, the sliding rod 184 is fixed by the limiting nut 185 to ensure that the limiting rod 186 is suitable for bearings of different specifications and prevents deviation or falling during conveying. The bearing is conveyed to the designated position by the conveying belt two 17, and by adding multiple sliding rods 184 to the conveying belt two 17, multiple processing boxes 2 can be used for conveying, completing the entire processing and oil return process, and realizing stable conveying of bearings of different specifications, improving the universality and conveying safety of the equipment, and ensuring the coherence and efficiency of the entire production process.

[0024] Working principle: when using the device, first, the bearing enters the machining box 2 through the output channel on the upper side of the machining box 2, in the machining box 2, the grinding wheel 32 is driven to rotate by the motor one 31 controlled by the controller 19, the bearing is ground, at the same time, the oil pump 6 in the base 7 extracts the grinding fluid from the oil tank 4, sprays it to the grinding area through the columnar oil pipe 5, cools, lubricates and flushes the debris, the waste liquid flows into the filtering and sewage mechanism 9 through the oil outlet 8, in the filtering and sewage mechanism 9, the motor three 951 drives the rotating shaft 954 and the magnetic suction drum 952 to rotate, and the iron filings in the waste liquid are adsorbed; the remaining waste liquid enters the filtering box 956, passes through the honeycomb filter screen 955, passes through the frame 958, the sliding rail 957 and the fixing bolt 9510, and can be replaced by pulling the handle 959; finally, after being filtered by the filter cartridge 9511, it is returned to the oil tank 4 for recycling, the motor two 91 on the lower side of the oil tank 4 drives the rotating sewage plate 92 to rotate regularly, cooperates with the discharge pipe 93 and the electromagnetic valve 94 to discharge the precipitated impurities, and the washed bearing enters the conveying belt one 10 through the right channel, the conveying belt one 10 runs, the bearing to be machined is placed on the conveying belt, the positioning baffle 111 in the guide assembly 11 limits the bearing, the cylinder 112 pushes the pushing block 113 to adjust the bearing position, and the bearing is accurately machined into the machining box 2. The ground bearing is sent into the processing box 1 by the conveying belt one 10 and moves along the guide rail 12. The cleaning and drying assembly 14 is started: the water pump 142 pumps water from the water tank 141 to the water spraying tank 143, washes the bearing residual oil stains through the spray head 144, the sewage flows into the sewage collecting tank 13, and is discharged into the oil collecting tank 149 through the sewage pipe 148; then the air blower 145 blows air to the hot air box 146, and blows dry the bearing through the air blowing cover 147; The cleaned bearing enters the conveying belt two 17 through the discharge port 16 of the discharge plate 15, in the adjusting assembly 18, the sliding rod 184 slides along the limiting groove 183 of the adjusting plate 182, cooperates with the limiting nut 185 to fix, makes the fixed block 187 drive the limiting rod 186 to adjust the spacing, guides and conveys the bearings of different specifications, and completes the whole machining and oil return process.

[0025] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A lubricating system for bearing grinding machining, comprising a treatment tank (1), characterized in that, The inside of the processing box (1) is provided with a guide rail (12), the lower side of the processing box (1) is fixedly installed with a sewage collecting tank (13), the inside of the processing box (1) is provided with a cleaning and drying assembly (14), the left side of the processing box (1) is fixedly installed with a processing box (2), the inside of the processing box (2) is provided with a grinding assembly (3), the lower side of the processing box (2) is fixedly installed with a base (7), the inside of the base (7) is fixedly installed with an oil tank (4), the upper side of the oil tank (4) is fixedly installed with an oil pump (6), the upper side of the oil pump (6) is fixedly communicated with a columnar oil injection pipe (5), the inside of the base (7) is provided with a filtering and sewage discharging mechanism (9), the inside of the processing box (2) is provided with an oil outlet (8), the columnar oil injection pipe (5) is arranged on the upper side of the oil outlet (8), the rear side of the processing box (2) is provided with a conveying belt one (10), the conveying belt one (10) is provided with a guide assembly (11), the front side of the processing box (1) is fixedly installed with a conveying belt two (17), the conveying belt two (17) is provided with an adjusting assembly (18). The filtering and sewage discharging mechanism (9) comprises a motor two (91), the motor two (91) is fixedly installed on the lower side of the oil tank (4), the output end of the motor two (91) is fixedly connected with a rotating sewage discharging plate (92), the left side of the oil tank (4) is fixedly communicated with a discharging pipe (93), the outer side of the discharging pipe (93) is fixedly installed with a electromagnetic valve (94), the right side of the oil tank (4) is provided with a filtering assembly (95).

2. The oil return system for bearing grinding processing according to claim 1, wherein, The grinding assembly (3) comprises a motor one (31), the motor one (31) is fixedly installed on the inner wall of the processing box (2), the output end of the motor one (31) is fixedly installed with a grinding wheel (32).

3. A lubricating system for grinding of bearings according to claim 2, characterized in that The filtering assembly (95) comprises a motor three (951), the motor three (951) is fixedly installed in the inside of the base (7), the output end of the motor three (951) is fixedly connected with a rotating shaft (954), the right side of the rotating shaft (954) is rotatably connected with a fixed plate (953), the right side of the fixed plate (953) is fixedly installed on the inner wall of the base (7), the outer side of the rotating shaft (954) is fixedly installed with a magnetic attraction cylinder (952), the lower side of the magnetic attraction cylinder (952) is fixedly installed with a filtering box (956), the inside of the filtering box (956) is provided with a sliding rail (957), the inside of the sliding rail (957) is provided with a fixed bolt (9510), the inside of the sliding rail (957) is provided with a frame (958), the inside of the frame (958) is fixedly installed with a honeycomb filter screen (955), the front side of the frame (958) is fixedly connected with a handle (959), the lower side of the filtering box (956) is fixedly communicated with a filter cartridge (9511), the left side of the filter cartridge (9511) is communicated with the left side of the oil tank (4).

4. The oil return system for bearing grinding processing according to claim 3, characterized in that, The guiding assembly (11) comprises a positioning baffle (111) fixedly installed on the conveying belt I (10), the rear side of the conveying belt I (10) is fixedly installed with a gas cylinder (112), and the output end of the gas cylinder (112) is fixedly connected with a pushing block (113).

5. The oil return system for bearing grinding processing according to claim 1, wherein, The adjusting assembly (18) comprises a connecting plate (181) fixedly installed on the outer side of the conveying belt II (17), the inner side of the connecting plate (181) is fixedly installed with an adjusting plate (182), the inner part of the adjusting plate (182) is provided with a limiting groove (183), the inner part of the adjusting plate (182) is provided with a sliding rod (184), the upper side of the sliding rod (184) is threadedly connected with a limiting nut (185), the lower side of the sliding rod (184) is fixedly connected with a fixed block (187), and the lower side of the fixed block (187) is fixedly connected with a limiting rod (186).

6. The oil return system for bearing grinding processing according to claim 4, characterized in that, The cleaning and drying assembly (14) comprises a water tank (141) fixedly installed on the lower side of the dirt collecting groove (13), the front side of the water tank (141) is fixedly installed with a water pump (142), the inner top of the processing box (1) is fixedly installed with a water spraying box (143), the lower side of the water spraying box (143) is fixedly installed with a spray head (144), the left side of the water tank (141) is fixedly installed with a hot air machine (145), the front side of the water spraying box (143) is provided with a hot air box (146), the lower side of the hot air box (146) is fixedly installed with a blowing cover (147), the rear lower side of the dirt collecting groove (13) is fixedly communicated with a dirt discharging pipe (148), and the rear side of the conveying belt II (17) is provided with an oil collecting groove (149).

7. A lubricating system for grinding of bearings according to claim 6, characterized in that The water pump (142), the water spraying box (143), the hot air machine (145) and the hot air box (146) are all communicated through pipes.

8. The oil return system for bearing grinding processing according to claim 5, wherein, The sliding rod (184) is slidingly connected in the limiting groove (183), and the limiting rod (186) is slidingly connected on the upper side of the conveying belt II (17).

9. The oil return system for bearing grinding processing according to claim 1, wherein, The front side of the guide rail (12) is fixedly installed with a discharging plate (15), and the inner part of the discharging plate (15) is provided with a discharging port (16).

10. The oil return system for bearing grinding processing according to claim 6, wherein The left side of the base (7) is fixedly installed with a controller (19), and the controller (19) is electrically connected with the motor I (31), the oil pump (6), the motor III (951), the conveying belt I (10), the conveying belt II (17), the gas cylinder (112), the water pump (142) and the hot air machine (145).

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