Air cleaner aluminum alloy base polishing device

By introducing drive and guide components into the grinding device, the aluminum alloy base of the air filter is stably fixed, solving the problems of workpiece offset and inaccurate positioning in traditional devices, and improving grinding quality and efficiency.

CN224526756UActive Publication Date: 2026-07-21ZHEJIANG RONGDA NEW MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG RONGDA NEW MATERIAL CO LTD
Filing Date
2025-08-20
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Traditional grinding equipment struggles to achieve multi-point uniform clamping of aluminum alloy air filter bases, leading to workpiece displacement and uneven surface quality. Furthermore, replacing fixtures is costly, operation relies on experience, and affects positioning accuracy.

Method used

The design employs a combination of drive and guide components. The rotating shaft is driven by a motor to achieve radial movement of the fixed plate, ensuring that the air filter is stably fixed on the base. Combined with magnetic components and cross plate structure, it improves positioning accuracy and ease of operation.

Benefits of technology

It solved the workpiece offset problem, significantly improved grinding quality and efficiency, simplified operation steps, reduced costs and improved positioning accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to aluminium alloy polishing technical field, a kind of air filter aluminium alloy base polishing device, including base, fixedly arranged with fixed shaft on base upper surface, air filter is arranged on base upper surface, placing groove for storing polisher is opened in the side surface of base, placing groove rotationally is provided with closure plate, rotating shaft is rotationally arranged in the inside of fixed shaft by motor, several protruding grooves are opened in the outer surface of fixed shaft, fixed plate is movably arranged in the inside of protruding groove, the upper and lower ends of rotating shaft are provided with the drive assembly for driving fixed plate to move. The utility model is driven by setting drive assembly on the upper and lower ends of the rotating shaft of fixed shaft, the accurate drive control of fixed plate is realized, when motor drives rotating shaft to rotate, drive assembly will convert rotary motion into fixed plate along the radial outward movement of protruding groove, so that multiple fixed plates are synchronously abutted with the inner wall or outer wall of air filter, to be stably fixed on the upper surface of base.
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Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy polishing technology, and in particular to a polishing device for an aluminum alloy base of an air filter. Background Technology

[0002] The air filter is a core component of the engine's intake system. Its primary function is to filter impurities such as dust, pollen, and sand from the air, preventing them from entering the cylinders and causing wear on precision components like piston rings and valves. This ensures clean engine operation, improves combustion efficiency, and extends engine life. It efficiently intercepts particulate matter through principles of inertial separation, diffusion interception, and direct filtration. Regular replacement prevents problems such as reduced power and increased fuel consumption caused by filter clogging, making it a crucial component for maintaining engine health in vehicle maintenance.

[0003] However, aluminum alloy has low hardness and is prone to forming a work-hardened layer on its surface, which makes it susceptible to deformation, scratches, or dimensional deviations during grinding and polishing. Traditional grinding devices often use manual clamps or fixed chucks to fix the air filter base. However, the aluminum alloy base has a complex shape, and traditional clamps are difficult to achieve multi-point uniform clamping. During grinding, the workpiece is prone to displacement due to vibration or external force, resulting in uneven surface quality. At the same time, different specifications of air filter bases require the replacement of special clamps, which is time-consuming and costly. Moreover, manual operation relies on experience, making it difficult to guarantee grinding depth and uniformity. Furthermore, debris can easily enter the clamp gaps, affecting positioning accuracy. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution: a grinding device for an aluminum alloy base of an air filter, comprising a base, a fixed shaft fixedly mounted on the upper surface of the base, an air filter mounted on the upper surface of the base, a placement groove for storing a grinder opened on the side of the base, a closing plate rotatably mounted on the placement groove, a rotating shaft rotatably mounted inside the fixed shaft via a motor, a plurality of protruding grooves opened on the outer surface of the fixed shaft, a fixed plate movably mounted inside the protruding grooves, and driving components for driving the fixed plate to move at the upper and lower ends of the rotating shaft.

[0005] As an improvement to the above technical solution, the driving assembly includes a first movable collar, a second movable collar, and a cross plate. The upper and lower ends of the rotating shaft are provided with the first movable collar and the second movable collar. The rotating shaft has a bidirectional thread between the first movable collar and the second movable collar. The side of the fixed plate is connected to the cross plate through an extension groove. The upper and lower ends of the two side plates of the cross plate are rotatably connected to the first movable collar and the second movable collar through a connecting shaft. The upper and lower ends of the two side plates of the cross plate are rotatably connected to the fixed plate through a connecting shaft. The inner wall of the fixed shaft is provided with a guide assembly for guiding the movement of the first movable collar and the second movable collar.

[0006] As an improvement to the above technical solution, the guiding component includes a guide post, a connecting plate one, and a connecting plate two. The fixed shaft has several guide grooves inside, and a guide post is fixedly installed inside the guide grooves. The connecting plate one and the connecting plate two are movably installed around the guide post, and the connecting plate one and the connecting plate two are fixedly connected to the sides of the movable collar one and the movable collar two.

[0007] As an improvement to the above technical solution, a magnetic suction element is provided on one side of the closed plate.

[0008] As an improvement to the above technical solution, a pivot is provided between the two sides of the cross plate.

[0009] The beneficial effects of this utility model are as follows: By setting drive components at both ends of the rotating shaft of the fixed shaft, precise drive control of the fixed plate is achieved. When the motor drives the rotating shaft to rotate, the drive components convert the rotational motion into the fixed plate moving radially outward along the protruding groove, so that multiple fixed plates synchronously abut against the inner or outer wall of the air filter, thereby stably fixing it to the upper surface of the base. This design solves the problem of workpiece displacement caused by unstable fixing in traditional grinding devices, ensures the positional accuracy of the air filter during grinding, and significantly improves grinding quality and efficiency. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0012] Figure 3 This is a three-dimensional structural connection diagram of the rotating shaft and the first and second movable collars in this utility model.

[0013] Figure 4 This is a three-dimensional structural diagram of the cross plate in this utility model.

[0014] Reference numerals: 10. Base; 11. Fixed shaft; 12. Air filter; 13. Placement slot; 14. Closing plate; 15. Extension slot; 16. Fixed plate; 20. Rotating shaft; 21. Moving collar one; 22. Moving collar two; 23. Cross plate; 24. Connecting shaft one; 25. Connecting shaft two; 26. Guide slot; 27. Guide column; 28. Connecting plate one; 29. ​​Connecting plate two. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following provides a more detailed description of the utility model. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a grinding device for an aluminum alloy base of an air filter, including a base 10, a fixed shaft 11 fixedly disposed on the upper surface of the base 10, an air filter 12 disposed on the upper surface of the base 10, a placement groove 13 for storing the grinder opened on the side of the base 10, a closing plate 14 rotatably disposed in the placement groove 13, a rotating shaft 20 rotatably disposed inside the fixed shaft 11 via a motor, a plurality of protrusion grooves 15 opened on the outer surface of the fixed shaft 11, a fixed plate 16 movably disposed inside the protrusion grooves 15, and driving components for driving the fixed plate 16 to move are disposed at the upper and lower ends of the rotating shaft 20.

[0017] In this embodiment, by setting drive components at both ends of the rotating shaft 20 of the fixed shaft 11, precise drive control of the fixed plate 16 is achieved. When the motor drives the rotating shaft 20 to rotate, the drive components convert the rotational motion into the radial outward movement of the fixed plate 16 along the extension groove 15, so that multiple fixed plates 16 simultaneously abut against the inner or outer wall of the air filter 12, thereby stably fixing it to the upper surface of the base 10. This design solves the problem of workpiece displacement caused by unstable fixing in traditional grinding devices, ensures the positional accuracy of the air filter 12 during grinding, and significantly improves grinding quality and efficiency.

[0018] Specifically, the drive assembly includes a first movable collar 21, a second movable collar 22, and a cross plate 23. The upper and lower ends of the rotating shaft 20 are provided with the first movable collar 21 and the second movable collar 22. The rotating shaft 20 has a bidirectional thread between the first movable collar 21 and the second movable collar 22. The side of the fixed plate 16 is connected to the cross plate 23 through the protruding groove 15. The upper and lower ends of the two side plates of the cross plate 23 are rotatably connected to the first movable collar 21 and the second movable collar 22 through the first connecting shaft 24. The upper and lower ends of the two side plates of the cross plate 23 are rotatably connected to the fixed plate 16 through the second connecting shaft 25. The inner wall of the fixed shaft 11 is provided with a guide assembly for guiding the movement of the first movable collar 21 and the second movable collar 22.

[0019] In this embodiment, the drive assembly adopts a bidirectional thread and a cross plate 23 structure, which realizes the smooth and reliable movement of the fixed plate 16. Specifically, the bidirectional thread of the rotating shaft 20 drives the moving collar 1 21 and the moving collar 22 to move towards or away from each other. The connecting shaft 1 24 and the connecting shaft 25 drive the cross plate 23 to unfold or retract, thereby pushing the fixed plate 16 to extend or retract. The scissor structure of the cross plate 23 enhances the stability of the driving force transmission, avoids the jamming phenomenon caused by uneven force on one side, and reduces the space occupied by the drive assembly, making the device structure more compact and the operation more flexible.

[0020] Specifically, the guide assembly includes a guide post 27, a connecting plate 1 28, and a connecting plate 29. The fixed shaft 11 has several guide grooves 26 inside, and the guide post 27 is fixedly installed inside the guide grooves 26. The connecting plate 1 28 and the connecting plate 29 are movably installed around the guide post 27. The connecting plate 1 28 and the connecting plate 29 are fixedly connected to the sides of the movable collar 1 21 and the movable collar 22.

[0021] In this embodiment, the guide assembly, through the cooperation of the guide post 27 with the connecting plate 28 and the connecting plate 29, provides precise guidance for the movement of the moving collar 21 and the moving collar 22, preventing them from deflecting or tilting due to the rotation of the rotating shaft 20 or the error of the bidirectional thread machining. The guide post 27 is fixed in the guide groove 26 to ensure that the moving collar moves only along the axial direction, thereby ensuring that the unfolding or retracting action of the cross plate 23 is strictly consistent with the moving direction of the fixed plate 16, further improving the positioning accuracy and clamping stability of the fixed plate 16 for the air filter 12.

[0022] Specifically, a magnetic attraction element is provided on one side of the closed plate 14.

[0023] In this embodiment, a magnetic suction device is provided on one side of the closing plate 14, which can be automatically attracted and fixed by magnetic force when the placement slot 13 is closed, preventing the closing plate 14 from being accidentally opened due to vibration during the grinding process. The design of the magnetic suction device eliminates the need for an additional locking mechanism, simplifying the operation steps. At the same time, the magnetic suction method allows for quick disassembly of the closing plate 14, making it easy to retrieve grinding tools and improving the practicality and maintenance convenience of the device.

[0024] Specifically, a pivot is provided between the two sides of the cross plate 23.

[0025] In this embodiment, a pivot is provided between the two sides of the cross plate 23, allowing the two side plates to rotate freely around the pivot. This allows them to smoothly unfold or retract under the drive of the first movable collar 21 and the second movable collar 22. The pivot structure reduces the frictional resistance when the cross plate 23 moves.

[0026] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A grinding device for an aluminum alloy base of an air filter, comprising a base (10), wherein a fixed shaft (11) is fixedly disposed on the upper surface of the base (10), and an air filter (12) is disposed on the upper surface of the base (10), characterized in that: The base (10) has a placement slot (13) for storing a grinder on its side. A closing plate (14) is rotatably installed in the placement slot (13). A rotating shaft (20) is installed inside the fixed shaft (11) via a motor. Several protruding slots (15) are provided on the outer surface of the fixed shaft (11). A fixed plate (16) is movably installed inside the protruding slots (15). A drive assembly for driving the fixed plate (16) to move is provided at the upper and lower ends of the rotating shaft (20).

2. The air filter aluminum alloy base grinding device according to claim 1, characterized in that: The drive assembly includes a first movable collar (21), a second movable collar (22), and a cross plate (23). The rotating shaft (20) is provided with a first movable collar (21) and a second movable collar (22) at both its upper and lower ends. The rotating shaft (20) has a bidirectional thread between the first movable collar (21) and the second movable collar (22). The side of the fixed plate (16) is connected to the cross plate (23) through an extension groove (15). The upper and lower ends of the two side plates of the cross plate (23) are rotatably connected to the first movable collar (21) and the second movable collar (22) through a connecting shaft (24). The upper and lower ends of the two side plates of the cross plate (23) are rotatably connected to the fixed plate (16) through a connecting shaft (25). The inner wall of the fixed shaft (11) is provided with a guide assembly for guiding the movement of the first movable collar (21) and the second movable collar (22).

3. The air filter aluminum alloy base grinding device according to claim 2, characterized in that: The guiding assembly includes a guide post (27), a connecting plate one (28), and a connecting plate two (29). The fixed shaft (11) has several guide grooves (26) inside. The guide post (27) is fixedly installed inside the guide grooves (26). The connecting plate one (28) and the connecting plate two (29) are movably installed around the guide post (27). The connecting plate one (28) and the connecting plate two (29) are fixedly connected to the sides of the movable collar one (21) and the movable collar two (22).

4. The air filter aluminum alloy base grinding device according to claim 1, characterized in that: A magnetic suction element is provided on one side of the closed plate (14).

5. The air filter aluminum alloy base grinding device according to claim 2, characterized in that: A pivot is provided between the two sides of the cross plate (23).