Cleaning turntable and equipment for inner and outer rings of bearings

Abstract

A bearing inner and outer ring cleaning turntable and equipment, the cleaning turntable is uniformly distributed with workpiece support mechanism on the turntable, the equipment includes the cleaning turntable and the chassis, the cleaning turntable is arranged on the chassis, the chassis is provided with feeding and discharging station, primary spray cleaning station, ultrasonic cleaning station, secondary spray cleaning station and suction drying station, the ultrasonic cleaning station is provided with ultrasonic cleaning unit, the primary spray cleaning station and the secondary spray cleaning station are provided with spray cleaning unit, and the suction drying station is provided with suction drying unit.The workpiece placed on the cleaning turntable passes through each station in turn, and the corresponding unit on the station completes primary spray cleaning, ultrasonic cleaning, secondary spray cleaning and suction drying and other operations.The same workpiece passes through multiple cleaning procedures through the turntable arrangement, ensures the cleanliness of workpiece cleaning, and has high cleaning efficiency and good effect.

Description

Technical Field

[0001] This invention relates to a device for cleaning the inner and outer rings of a bearing, belonging to the field of bearing cleaning technology. Background Technology

[0002] Bearings are generally composed of an inner ring, an outer ring, and steel balls. These three components need to be strictly matched to meet various parameter requirements. During assembly, the matched components need to be cleaned. However, the current cleaning is done manually by picking up and placing the components, and the inner and outer rings are cleaned separately. This not only results in low cleaning efficiency but also makes the workpieces prone to bumping and causing damage, which affects the assembly accuracy.

[0003] Although various automatic cleaning devices have emerged, they are not suitable for efficient and non-destructive cleaning of the inner and outer rings of bearings. For example, single-piece cleaning can easily cause confusion between the selected inner and outer rings. Furthermore, hot air drying is unsuitable for cleaning bearing components because it can cause dimensional deformation of the bearing parts due to heat, affecting the accuracy of subsequent measurements. Hot air cannot be used with cleaning media such as kerosene or hydrocarbons, posing safety hazards. Summary of the Invention

[0004] This invention addresses the shortcomings of existing bearing cleaning technologies by providing a cleaning turntable for the inner and outer rings of bearings with high cleaning efficiency and good cleaning effect, as well as cleaning equipment using this turntable.

[0005] The cleaning turntable for the inner and outer rings of the bearing of the present invention adopts the following technical solution:

[0006] The cleaning turntable includes a turntable on which workpiece support mechanisms are evenly distributed. Each workpiece support mechanism includes a slide rail, a lifting seat, and a workpiece support base. The slide rail is mounted on the turntable, the lifting seat is mounted on the slide rail, and the workpiece support base is mounted on the lifting seat. A spring is installed between the lifting seat and the slide rail. The workpiece support base is tower-shaped to accommodate workpieces with different inner diameters.

[0007] The cleaning equipment for the inner and outer rings of the bearings using the above-mentioned cleaning turntable adopts the following technical solution:

[0008] The cleaning equipment includes the aforementioned cleaning turntable and base frame. The cleaning turntable is mounted on the base frame, which is equipped with loading and unloading stations, a primary spray cleaning station, an ultrasonic cleaning station, a secondary spray cleaning station, and a drying station. The ultrasonic cleaning station is equipped with an ultrasonic cleaning unit, the primary and secondary spray cleaning stations are equipped with spray cleaning units, and the drying station is equipped with a drying unit. The cleaning turntable moves the workpieces placed on it sequentially through each station, where the corresponding units complete the primary spray cleaning, ultrasonic cleaning, secondary spray cleaning, and drying operations.

[0009] The base frame is also equipped with a loading and unloading unit, which includes a loading conveyor line, a demagnetizer, a loading platform, and an unloading platform. A demagnetizing lateral transport device is installed between the loading conveyor line and the demagnetizer, and a loading and unloading rotary transport device is installed between the loading platform and the cleaning turntable. The demagnetizing lateral transport device uses a lateral transport robot with two sets of transport grippers. One set of transport grippers transports the workpieces from the loading conveyor line to the demagnetizer, and the other set of transport grippers transports the demagnetized workpieces to the loading platform. The loading and unloading rotary transport device uses a rotary transport robot with two sets of transport grippers. One set of transport grippers grabs the workpieces on the loading platform and transports them to the workpiece support seat at the loading and unloading station, and the other set of transport grippers transports the cleaned workpieces from the workpiece support seat at the loading and unloading station to the unloading platform.

[0010] The base frame is equipped with a cover, which has an oil mist suction port and an exhaust filter. The oil mist is discharged and purified through the oil mist suction pipe, and the dried air is discharged through the exhaust filter.

[0011] The spray cleaning unit includes a cleaning fluid delivery pipe, a cleaning cup, and a cup lifting mechanism. The cleaning fluid delivery pipe is connected to the upper part of the cleaning cup, which is connected to the cup lifting mechanism, which is mounted on a base frame. The cup lifting mechanism uses a cylinder, hydraulic cylinder, or similar device. A cleaning fluid control valve is installed on the cleaning fluid delivery pipe, and a filter is connected to it. The cup lifting mechanism presses down the spray cup to cover the workpiece at the spray cleaning station, allowing the cleaning fluid delivered by the delivery pipe to perform spray cleaning.

[0012] The ultrasonic cleaning unit includes an ultrasonic cleaning tank and a workpiece pressing mechanism. The ultrasonic cleaning tank is mounted on a base frame and located below the cleaning turntable, while the workpiece pressing mechanism is mounted on the base frame and located above the cleaning turntable. The workpiece pressing mechanism uses a cylinder, hydraulic cylinder, or similar device. The workpiece pressing mechanism presses the entire workpiece from the ultrasonic cleaning station into the ultrasonic cleaning tank, completes the ultrasonic cleaning, and then lifts it out.

[0013] The drying unit employs vacuum negative pressure drying and includes a suction pipe, a drying cup, and a cup lifting mechanism. The suction pipe connects to the drying cup, which is connected to the cup lifting mechanism, which is mounted on a base frame. The cup lifting mechanism utilizes a cylinder, hydraulic cylinder, or similar device. The cup lifting mechanism presses down the drying cup to cover the workpiece at the drying station, where it is dried by the suction pipe.

[0014] After demagnetization, the workpiece (the assembly of the selected bearing inner and outer rings) is transported to the workpiece support at the loading / unloading station of the cleaning turntable. Driven by the cleaning turntable, the workpiece support sequentially passes through various stations for primary spray cleaning, ultrasonic cleaning, secondary spray cleaning, and vacuum drying. Finally, it rotates to the loading / unloading station to be removed, and an uncleaned workpiece is placed on the vacated workpiece support. This cycle greatly improves cleaning efficiency, while the ultrasonic cleaning and cleaning fluid rinsing ensure effective cleaning.

[0015] This invention has the following characteristics:

[0016] 1. Suitable for cleaning paired parts (that cannot be separated during cleaning and transportation, such as the inner and outer rings of high-precision bearings);

[0017] 2. A combined cleaning process is adopted, consisting of spray cleaning, ultrasonic cleaning, and positive pressure spray cleaning, to ensure the cleanliness of the workpiece.

[0018] 3. Rotary table layout: The same set of workpieces can go through multiple cleaning processes, resulting in high cleaning efficiency, good cleanliness, and small footprint.

[0019] 4. Set up an independent drying station and use vacuum negative pressure to dry the workpiece surface to ensure the dryness of the cleaned workpiece;

[0020] 5. Suitable for water-based cleaning agents and hydrocarbon cleaning agents;

[0021] 6. The pagoda-style positioning fixture can be used to clean various models of products without the need for changeover, resulting in low changeover costs. Attached Figure Description

[0022] Figure 1 This is a top view schematic diagram of the cleaning equipment for the inner and outer rings of the bearing of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the cleaning equipment for the inner and outer rings of the bearing of the present invention.

[0024] Figure 3 This is a schematic diagram of the workpiece support mechanism in this invention.

[0025] The components include: 1. Base frame, 2. Feeding conveyor line, 3. Demagnetizing transverse conveying device, 4. Demagnetizer, 5. Feeding platform, 6. Cleaning loading and unloading rotary conveying device, 7. Unloading platform, 8. Cleaning turntable, 9. Workpiece support mechanism, 10. Primary cleaning fluid filter, 11. Secondary cleaning fluid filter, 12. Cleaning fluid control valve, 13. Cleaning fluid delivery pipe, 14. Cup lifting mechanism, 15. Ultrasonic cleaning tank, 16. Workpiece pressing mechanism, 17. Cleaning cup, 18. Cup lifting mechanism, 19. Drying cup, 20. Lifting seat, 21. Linear slide rail, 22. Spring, 23. Workpiece support seat, 24. Pressing point. Detailed Implementation

[0026] like Figure 1 and Figure 2 As shown, the bearing inner and outer ring cleaning equipment of the present invention includes a base frame 1, on which a cleaning turntable 8 is installed. The cleaning turntable 8 has multiple workpiece support mechanisms 9 evenly distributed circumferentially on the turntable. Figure 1 There are 12 of them. The base frame 1 is equipped with loading and unloading stations, primary spray cleaning station, ultrasonic cleaning station, secondary spray cleaning station and drying station in sequence. The primary spray cleaning station and secondary spray cleaning station are equipped with spray cleaning units, the ultrasonic cleaning station is equipped with ultrasonic cleaning units, and the drying station is equipped with drying units. Figure 1 The equipment shown is equipped with one loading / unloading station, one primary spray cleaning station, five ultrasonic cleaning stations, two secondary spray cleaning stations, and three drying stations. Each station corresponds to 12 workpiece support mechanisms 9. The cleaning turntable 8 drives the workpieces placed on each workpiece support mechanism 9 to pass through each station sequentially, completing the corresponding operations. The cleaning turntable 8 rotates under the drive of its drive mechanism (gear motor, etc.), causing the workpieces placed on the workpiece support mechanisms 9 to pass through each station sequentially for primary spray cleaning, ultrasonic cleaning, secondary spray cleaning, and drying, thus completing the cleaning process. Different water pressures and flow rates can be used for primary and secondary spray cleaning.

[0027] like Figure 3As shown, the workpiece support mechanism 9 includes a linear slide rail 21, a lifting seat 20, and a workpiece support seat 23. The linear slide rail 21 is mounted on the cleaning turntable 8, and the lifting seat 20 is mounted on the linear slide rail 21. The workpiece support seat 23 is mounted on the lifting seat 20, and a compression spring 22 is installed between the lifting seat 20 and the linear slide rail 21. The spring 22 supports the lifting seat 20. In the free state, the spring 22 lifts the lifting seat 20. During cleaning, the upper pressing mechanism (workpiece pressing mechanism 16) presses the lifting seat 20, the workpiece support seat 23, and the workpiece into the cleaning tank through the pressing point 24 for cleaning. After cleaning, the pressing mechanism returns, and the lifting seat 20, the workpiece support seat 23, and the workpiece are then lifted back to their original positions by the spring 22. The workpiece support seat 23 has a tower-shaped structure to accommodate workpieces with different inner diameters.

[0028] The base frame 1 is also equipped with loading and unloading units, including a loading conveyor line 2, a demagnetizer 4, a loading platform 5, and an unloading platform 7. The loading conveyor line 2 is a stepping type. A demagnetizing lateral transport device 3 is installed between the loading conveyor line 2 and the demagnetizer 4, and a loading and unloading rotary transport device 6 is installed between the loading platform 5 and the cleaning turntable 8. The inner and outer rings of the bearing are manually placed on the loading conveyor line 2 after being fitted together, ensuring that the axis of the bearing inner hole is vertical. The demagnetizing lateral transport device 3 uses a lateral transport robot equipped with two sets of transport grippers. One set of transport grippers transports the inner and outer ring assemblies from the loading conveyor line 1 to the demagnetizer 4, while the other set of transport grippers simultaneously transports the demagnetized inner and outer ring assemblies from the demagnetizer 9 to the loading platform 5. The demagnetizer 4 is used for demagnetizing the inner and outer ring assemblies. After the assembly is in place, it automatically completes demagnetization according to the set parameters. During demagnetization, the workpiece is limited to prevent movement. The loading and unloading rotary conveying device 6 adopts a rotary conveying robot, equipped with two sets of conveying grippers. One set of conveying grippers grabs the inner and outer ring components on the loading platform 5 and transports them to the workpiece support seat 9 of the cleaning turntable 8 by rotating in the horizontal plane. The other set of conveying grippers grabs the cleaned inner and outer ring components on the cleaning turntable 8 and transports them to the unloading platform 7.

[0029] The entire base frame 1 is equipped with a transparent cover (not shown in the figure), with workpiece inlet and outlet, sealing each cleaning unit to prevent oil mist from spreading and polluting the environment. An oil mist suction port and an exhaust filter are installed on the transparent cover. The purified air is discharged through the oil mist suction pipe, and the dried air is discharged through the exhaust filter.

[0030] The spray cleaning unit includes a cleaning fluid delivery pipe 13, a cleaning cup 17, and a cup lifting mechanism 18. The cleaning fluid delivery pipe 13 is connected to the upper part of the cleaning cup, and the cleaning cup 17 is connected to the cup lifting mechanism 18. The cup lifting mechanism 18 is a cylinder, mounted on the base frame 1 and positioned above the corresponding workstation. The cleaning cup 17 is connected to the piston rod of the cylinder. One spray cleaning unit is installed at each of the primary and secondary spray cleaning workstations. The entire equipment uses a centralized cleaning fluid supply method. The filtered cleaning fluid is delivered by the cleaning fluid delivery pipe 13. A cleaning fluid control valve (pneumatic valve) 12 is installed on the cleaning fluid delivery pipe 13. The supply and stop of the cleaning fluid are achieved by opening and closing the cleaning fluid control valve 12. The cleaning fluid is filtered using filters. A primary cleaning fluid filter 10 and a secondary cleaning fluid filter 11 are connected in series. Differential pressure gauges are installed on the filters to monitor the filter element status in real time. A flow sensor and a pressure sensor are installed in the cleaning fluid delivery pipe 13. During cleaning with the cleaning fluid, the cup lifting mechanism (cylinder) 18 presses down the spray cup 17 to cover the workpiece, and the cleaning fluid control valve 12 controls the liquid to discharge and clean the inner and outer ring assemblies of each station simultaneously.

[0031] The ultrasonic cleaning unit includes an ultrasonic cleaning tank 15 and a workpiece pressing mechanism 16. The equipment is configured with five ultrasonic cleaning stations sharing one ultrasonic cleaning tank 15. The ultrasonic cleaning tank 15 is mounted on the base frame 1 and positioned below the corresponding five stations. The workpiece pressing mechanism 16, using a cylinder, is mounted on the base frame 1 and positioned above the corresponding five stations. During ultrasonic cleaning, the upper workpiece pressing mechanism 16 (pressing cylinder) presses down the lifting seat 20 in the workpiece support mechanism 9, causing the workpiece placed on the workpiece support seat 23 to be pressed entirely into the ultrasonic cleaning tank 15. After ultrasonic cleaning is completed, the workpiece pressing mechanism 16 resets and rises back to its original position under the action of the spring 22. The ultrasonic cleaning tank 15 is equipped with a lower liquid level switch to ensure that the workpiece is fully immersed in the ultrasonic cleaning fluid during cleaning.

[0032] The desiccant unit includes an air suction pipe, a desiccant cup 19, and a cup lifting mechanism 14. The equipment is configured with three desiccant stations, all of which operate simultaneously, sharing a single air suction system. An air suction filter is mounted on the base frame. One end of the air suction pipe is connected to the air suction filter, and the other end is connected to the desiccant cup 19. The desiccant cup 19 is connected to the cup lifting mechanism 14, which is a cylinder mounted on the base frame 1 and positioned above the corresponding station. The desiccant cup 19 is connected to the piston rod of the cylinder. During desiccant drying, the cup lifting mechanism 14 (cylinder) presses down the desiccant cup 19, simultaneously covering the inner and outer ring assemblies at the three stations. Exhaust air is then passed through an exhaust filter, while the intake filter ensures the intake air is clean and dry.

[0033] The operation process of the above-mentioned equipment is as follows.

[0034] The assembly of the bearing inner and outer rings, after being fitted together, is conveyed on the feeding conveyor line 2 and transported by the demagnetizing transverse transport device 3 to the demagnetizer 4 for demagnetization. After demagnetization, it is then transported to the feeding platform 5. The loading and unloading rotary transport device 6 transports the assembly from the feeding platform 5 to the workpiece support seat 9 at the loading and unloading station of the cleaning turntable 8. The workpiece support seat 9 with the assembly is driven by the cleaning turntable 8 to pass through each station in sequence. First, it rotates to the primary spray cleaning station for primary spray cleaning by the spray cleaning unit, then rotates to the ultrasonic cleaning station for ultrasonic cleaning by the ultrasonic cleaning unit, then rotates to the secondary spray cleaning station for secondary spray cleaning by the spray cleaning unit, then rotates to the drying station to dry the moisture on the assembly, and finally rotates to the loading and unloading station, where the loading and unloading rotary transport device 6 removes the cleaned assembly and places it on the unloading platform 7, while simultaneously transporting the assembly from the feeding platform 5 to the empty workpiece support seat 23. This cycle greatly improves cleaning efficiency, while ultrasonic cleaning and spray cleaning ensure the cleaning effect.

Claims

1. A bearing inner and outer ring cleaning apparatus, characterized by: The cleaning device comprises a base frame and a cleaning turntable, the cleaning turntable is arranged on the base frame; the cleaning turntable comprises a turntable, the turntable is uniformly provided with a workpiece supporting mechanism, the workpiece supporting mechanism comprises a sliding rail, a lifting seat and a workpiece supporting seat, the sliding rail is arranged on the turntable, the lifting seat is arranged on the sliding rail, the workpiece supporting seat is arranged on the lifting seat, and a spring is arranged between the lifting seat and the sliding rail; the workpiece supporting seat is in a tower type; the base frame is provided with a feeding and discharging station, a primary spraying cleaning station, an ultrasonic cleaning station, a secondary spraying cleaning station and a drying station, the ultrasonic cleaning station is provided with an ultrasonic cleaning unit, the primary spraying cleaning station and the secondary spraying cleaning station are provided with spraying cleaning units, and the drying station is provided with a drying unit; The spraying cleaning unit comprises a cleaning liquid conveying pipe, a cleaning cover cup and a cover cup lifting mechanism, the cleaning liquid conveying pipe is connected to the upper portion of the cleaning cover cup, the cleaning cover cup is connected to the cover cup lifting mechanism, and the cover cup lifting mechanism is arranged on the base frame; The ultrasonic cleaning unit comprises an ultrasonic cleaning tank and a workpiece pressing mechanism, the ultrasonic cleaning tank is arranged on the base frame and below the cleaning turntable, and the workpiece pressing mechanism is arranged on the base frame and above the cleaning turntable; The drying unit comprises an air suction pipe, a drying cover cup and a cover cup lifting mechanism, the air suction pipe is connected to the drying cover cup, the drying cover cup is connected to the cover cup lifting mechanism, and the cover cup lifting mechanism is arranged on the base frame.

2. The bearing inner and outer ring cleaning apparatus according to claim 1, characterized in that: The base frame is further provided with a conveying demagnetization unit and a feeding and discharging unit, the unit comprises a feeding conveying line, a demagnetizer, a feeding platform and a discharging platform, a demagnetization horizontal transfer carrying device is arranged between the feeding conveying line and the demagnetizer, and an up-and-down feeding and discharging rotary carrying device is arranged between the feeding platform and the cleaning turntable.

3. The bearing inner and outer ring cleaning apparatus according to claim 2, wherein: The demagnetization horizontal transfer carrying device adopts a horizontal transfer carrying robot, and is provided with two groups of carrying clamps, one group of carrying clamps carries the workpiece on the feeding conveying line to the demagnetizer, and the other group of carrying clamps carries the demagnetized workpiece to the feeding platform.

4. The bearing inner and outer ring cleaning apparatus according to claim 2, wherein: The up-and-down feeding and discharging rotary carrying device adopts a rotary carrying robot, and is provided with two groups of carrying clamps, one group of carrying clamps grasps the workpiece on the feeding platform and carries the workpiece to the workpiece supporting seat of the up-and-down feeding and discharging station, and the other group of carrying clamps carries the cleaned workpiece on the workpiece supporting seat of the up-and-down feeding and discharging station to the discharging platform.

5. The bearing inner and outer ring cleaning apparatus of claim 1, wherein: The base frame is provided with a cover shell, an oil mist suction port and an air exhaust filter are arranged on the cover shell.

6. The bearing inner and outer ring cleaning apparatus of claim 1, wherein: A cleaning liquid control valve is arranged on the cleaning liquid conveying pipe and connected to a filtering device.

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