Aluminum plate surface treatment device

Abstract

The invention discloses an aluminum plate surface treatment device, relates to the technical field of aluminum plate surface treatment, and aims to solve the technical problem that high-temperature oxidation is easy to occur when aluminum plates are processed by existing grinding and polishing equipment. The aluminum plate surface treatment device comprises a grinding machine main body, a driving shaft is mounted at the output end of the grinding machine main body, and a grinding wheel is mounted at the bottom end of the driving shaft; a driving structure is installed on the periphery of the top end of the driving shaft, a vortex fan is arranged at the top end of the driving shaft, a protective outer cover is arranged between the periphery of the driving shaft and the periphery of the output end of the grinding machine body, and a sealing structure, a chip collecting structure and an oxygen blocking structure are arranged on the protective outer cover. The protective outer cover, the air curtain system, the sealing structure and the oxygen blocking structure cooperate with one another to form a complete anti-oxidation machining system, the problem of high-temperature oxidation in the aluminum plate grinding machining process is effectively solved, the surface flatness and smoothness of the aluminum plate are improved, the strict requirements for the quality of the aluminum plate in the high-end fields such as aerospace and automobile manufacturing are met, and the service life of the aluminum plate is prolonged. The product additional value is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum sheet surface treatment, and more specifically, to an aluminum sheet surface treatment device. Background Art

[0002] In the field of modern industrial manufacturing, aluminum sheets are widely used in industries such as aerospace, automotive manufacturing, and architectural decoration due to their light weight, high strength, and easy processing characteristics. However, during the surface grinding process of aluminum sheets, the oxidation problem caused by the high temperature generated by high-speed friction has become a key bottleneck restricting the improvement of product quality and performance. The surface grinding process of aluminum sheets is an important process for improving their flatness and roughness to meet specific usage requirements. However, in actual processing, a large amount of heat generated by the high-speed friction between the grinding wheel and the aluminum sheet will cause the temperature in the processing area to rise rapidly. When the temperature exceeds a certain threshold, the reaction rate between aluminum and oxygen in the air significantly increases, and a thick and loose oxide film is quickly formed on the surface. This oxide film not only causes the surface color of the aluminum sheet to become dull and develop color differences, seriously affecting the appearance quality, but also, due to its loose and porous structure characteristics, cannot effectively isolate corrosive media such as moisture, acids, and alkalis, making the aluminum sheet substrate directly exposed to the external environment and greatly reducing the corrosion resistance. In view of this, we propose an aluminum sheet surface treatment device. Summary of the Invention

[0003] The purpose of the present invention is to provide an aluminum sheet surface treatment device to solve the technical problem of easy high-temperature oxidation when existing grinding and polishing equipment processes aluminum sheets.

[0004] To solve the above technical problems, the present invention provides the following technical solution: An aluminum sheet surface treatment device includes a grinder main body. A grip is connected to one side of the grinder main body. A drive shaft is installed at the output end of the grinder main body. The center of the drive shaft is hollow. A grinding wheel is installed at the bottom end of the drive shaft. An air curtain channel is opened at the bottom of the grinding wheel. A drive structure is installed on the outer periphery of the top end of the drive shaft. An eddy current fan is arranged at the top end of the drive shaft. A protective outer cover is arranged between the outer periphery of the drive shaft and the outer periphery of the output end of the grinder main body. A sealing structure is connected to the outer edge of the bottom end of the protective outer cover. The sealing structure includes a curved arc elastic sheet, and the curved arc elastic sheet is made of elastic metal material. A chip collection structure is connected to the outer arc side of the bottom end of the protective outer cover. An oxygen barrier structure is arranged inside the protective outer cover. The oxygen barrier structure includes a plurality of air collection channels, and a zeolite ring body is blocked on one side of the air collection channel.

[0005] Preferably, the drive structure includes an annular gear. The inner ring of the annular gear is connected to the outer periphery of the drive shaft. A drive bevel gear is meshed with the outer periphery of the annular gear. A drive motor is installed at one end of the drive bevel gear.

[0006] Preferably, the air curtain channel includes a central through cavity which is opened at the center of the grinding wheel and communicated with the drive shaft. A plurality of exhaust and dispersion cavities are communicated with the outer periphery of the central through cavity, and the plurality of exhaust and dispersion cavities are arranged in an array centered on the grinding wheel.

[0007] Preferably, the protective outer cover includes an outer cover body. An inner cover body is arranged below the outer cover body. A curved arc guiding plate is adhesively bonded to the bottom of the inner cover body. The curved arc guiding plate is a curved arc surface and is made of rubber material. An intermediate layer is arranged between the inner cover body and the outer cover body. A central block is arranged at the center of the bottom of the inner cover body.

[0008] Preferably, the sealing structure includes a connecting ring edge which is connected with the outer cover body. The bottom of the connecting ring edge is fixed to a curved arc elastic piece. The cross section of the curved arc elastic piece is curved arc-shaped and forms an overall annular structure.

[0009] Preferably, the horizontal direction of the curved arc elastic piece is combined by multiple wave folds. A sealing edge elastic outer layer is adhesively bonded to the arc side of the bottom of the curved arc elastic piece.

[0010] Preferably, the chip collecting structure includes a chip collecting shell. The inlet end of the chip collecting shell is communicated with the output direction of the curved arc guiding plate and is horizontal. The outer side edge of the chip collecting shell is a chip collecting area. A plurality of chip inlet ladder grooves are opened on the side wall of the chip collecting area. The chip inlet ladder grooves are in a slope shape which is horizontal with the output direction of the curved arc guiding plate.

[0011] Preferably, the oxygen blocking structure includes an oxygen storage cavity for storing oxygen. The oxygen storage cavity is opened inside the central block. The two sides of the oxygen storage cavity are respectively connected with the output part and the middle section of the gas collecting flow channel, and the cross section of the connection part is an arc-shaped curve. The zeolite ring body is made of zeolite material, and the zeolite ring body fits the outer cover body, the inner cover body and the intermediate layer.

[0012] Preferably, the gas collecting flow channel includes a main flow channel which is a linear cavity opened along the side wall of the intermediate layer. A plurality of branch flow channels are opened on both side edges of the main flow channel. The branch flow channels are arc-shaped guiding channels. The end of the branch flow channel facing the air outlet is an acute angle for accelerating the gas flow velocity, and the other end of the branch flow channel is an obtuse angle.

[0013] Preferably, an input pipe is communicated between the top of the chip collecting shell and the lower half part of the main flow channel, and the input pipe is inclined and communicated with the main flow channel in the input direction.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention ingeniously utilizes the cooperative working principle of the eddy current fan and the air curtain channel. When the main body of the grinding wheel drives the driving motor to operate, the driving bevel gear drives the ring gear to rotate, thereby causing the driving shaft to rotate at a high speed. The eddy current fan installed on the inner wall of the driving shaft rotates at a high speed accordingly. Under the action of centrifugal force, the eddy current fan sucks in the external gas from the top. The gas passes through the hollow part of the driving shaft, successively through the central through cavity of the grinding wheel and the exhaust dispersion cavities distributed in an array, and finally discharges in the form of a high-speed air flow, forming an air curtain that spreads from the center of the grinding wheel to the periphery, evenly covering the grinding area, effectively isolating oxygen, preventing the aluminum sheet from contacting oxygen during the high-temperature grinding process, preventing the formation of the surface oxide film, ensuring the appearance quality and corrosion resistance of the aluminum sheet, and solving the problem that the existing grinding and polishing equipment is prone to high-temperature oxidation when processing aluminum sheets.

[0015] 2. The present invention also fully considers the actual processing conditions of the aluminum sheet surface through the design of the sealing structure. The arc-shaped elastic piece is made of elastic metal material. Its unique wavy cross-section and overall annular structure endow it with good elastic deformation ability. When it contacts the surface of the aluminum sheet, whether it is a flat area or a part with small concavities and convexities, the arc-shaped elastic piece can undergo corresponding deformation through its own elasticity and closely fit the surface of the aluminum sheet. At the same time, the edge-sealing elastic outer layer bonded to the arc side at the bottom of the arc-shaped elastic piece selects materials with high elasticity and good sealing performance such as latex or natural rubber, further enhancing the sealing effect. Even when there are small concavities and convexities on the processing surface, it can maintain the sealed state through elastic deformation, further reducing the entry of external oxygen, enhancing the anti-oxidation effect, and further solving the problem that the existing grinding and polishing equipment is prone to high-temperature oxidation when processing aluminum sheets.

[0016] 3. The present invention also fully considers the movement law of waste chips and the role of the air curtain through the setting of the chip collection structure. During the grinding process of the aluminum sheet, due to the high-speed friction between the grinding wheel and the sheet, most of the waste chips will fly around, and the wind force generated by the air curtain plays an effective guiding role for the waste chips. A small part of the waste chips in the exhaust dispersion cavity area will be blown towards the arc-shaped guiding plate under the push of the air curtain wind force. By using the slope design of the chip inlet ladder groove, the waste chips can accurately fall into the chip collection area under the action of wind force and gravity, realizing the centralized collection of waste chips, avoiding the pollution of the processing environment caused by the flying of waste chips, and at the same time reducing the secondary wear of the aluminum sheet surface by waste chips, further solving the problem that the waste chips are prone to damage the surface when the existing grinding and polishing equipment processes aluminum sheets.

[0017] 4. The present invention also realizes the efficient recycling of gas and the effective separation of oxygen through the design of the oxygen barrier structure and the gas collection channel. The protective outer cover, through the structural design of the outer cover body, the inner cover body and the intermediate layer, cooperates with the sealing structure to effectively prevent the entry of external gas, forming a relatively enclosed internal space. The oxygen barrier structure utilizes the adsorption characteristics of the zeolite ring body for oxygen to retain the oxygen in the air flow generated by the air curtain in the gas storage cavity, and the non-oxygen gas is recycled through the gas collection channel again. The diversion design and the acute-angle convergence structure of the gas collection channel can accelerate the gas flow rate, while ensuring sufficient gas supply for the air curtain, continuously reducing the oxygen content in the processing area, enhancing the anti-oxidation efficiency of the air curtain, and further solving the problem that the existing grinding and polishing equipment is prone to high-temperature oxidation when processing aluminum plates.

[0018] 5. The protective outer cover, the air curtain system, the sealing structure and the oxygen barrier structure of the present invention cooperate with each other to form a complete anti-oxidation processing system, effectively solving the problem of high-temperature oxidation in the grinding process of aluminum plates, improving the surface flatness and smoothness of aluminum plates, meeting the strict requirements for the quality of aluminum plates in high-end fields such as aerospace and automobile manufacturing, and increasing the product added value. Brief Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the grinding part of the present invention; Figure 3 is a schematic driving structure diagram of the driving shaft in the present invention; Figure 4 is a schematic structural diagram of the bottom of the grinding wheel in the present invention; Figure 5 is a schematic separation structure diagram of the protective outer cover in the present invention; Figure 6 is a schematic structural diagram of the chip collection structure in the present invention; Figure 7 is a schematic structural diagram when the chip collection structure is separated from the protective outer cover in the present invention; Figure 8 is a schematic structural diagram of the sealing structure in the present invention; Figure 9 is a schematic structural diagram of the intermediate layer and the central block in the present invention; Figure 10 in the present invention Figure 9 semi-sectional structural diagram.

[0020] Explanation of the reference numerals in the drawings: 1. Grinding wheel machine main body; 2. Handle; 3. Driving shaft; 4. Grinding wheel; 5. Driving structure; 6. Eddy current fan; 7. Protective outer cover; 8. Sealing structure; 9. Chip collection structure; 10. Oxygen barrier structure; 11. Arc guiding plate; 501, Ring gear; 502, Driving bevel gear; 503, Driving motor; 601, Central through cavity; 602, Exhaust and dissipation cavity; 701, Outer housing; 702, Inner housing; 703, Intermediate layer; 704, Central block; 801, Connecting ring edge; 802, Bent arc elastic sheet; 803, Sealing edge elastic outer layer; 901, Chip collecting housing; 902, Chip collecting area; 903, Chip inlet ladder groove; 904, Input pipe; 101, Air collecting channel; 1011, Main channel; 1012, Branch channel; 102, Zeolite ring body; 103, Air storage cavity. Detailed implementation manners

[0021] As Figures 1 to 10 shown, a surface treatment device for aluminum sheets according to the present invention, the grinding wheel main body 1 as the core support component is cast from high-strength alloy steel to ensure the structural stability and vibration resistance of the equipment under high-speed operation. One side of it is connected to the grip 2 designed according to ergonomics. The surface of the grip 2 is covered with anti-slip rubber material, and the internal is integrated with control buttons for controlling the start and stop of the equipment and adjusting the operation parameters, ensuring the comfort of the operator's grip and the operation safety. The output end of the grinding wheel main body 1 is equipped with a drive shaft 3. The drive shaft 3 adopts a hollow design, which not only reduces the overall weight but also reserves space for the internal air circuit system. The bottom end of the drive shaft 3 is rigidly connected to the grinding wheel 4 through a high-precision positioning key to ensure the synchronous and stable operation of the two during the grinding process; the outer periphery of the top end is equipped with a drive structure 5. The core component ring gear 501 is fixedly connected to the outer periphery of the drive shaft 3 by an interference fit to form a stable transmission connection. The outer periphery of the ring gear 501 meshes with the driving bevel gear 502, and the driving bevel gear 502 is directly driven by the driving motor 503. Through the precise speed regulation of the driving motor 503, stepless speed change of the drive shaft 3 and the grinding wheel 4 can be achieved to meet the speed requirements of different aluminum sheet surface treatment processes.

[0022] At the top end of the drive shaft 3, there is an eddy current fan 6. The eddy current fan 6 is composed of multiple helically distributed fan blades and a central shaft, and is firmly fixed to the inner wall of the drive shaft 3 through a welding process. When the drive shaft 3 rotates at high speed driven by the drive motor 503, the eddy current fan 6 rotates synchronously. Using the principle of aerodynamics, a high-speed spiral air flow is generated inside the drive shaft 3, providing a power source for the air curtain exhaust system. The bottom of the grinding wheel 4 is innovatively designed with an air curtain channel, which consists of a central through cavity 601 and an exhaust diffusion cavity 602. The central through cavity 601 is opened along the central axis of the grinding wheel 4 and is connected to the hollow space inside the drive shaft 3 to form a main air flow channel; a plurality of exhaust diffusion cavities 602 are evenly distributed on its outer periphery, and the exhaust diffusion cavities 602 are arranged in a circular array with the center of the grinding wheel 4 as the symmetry point and are vertically connected to the central through cavity 601. When the high-speed air flow generated by the eddy current fan 6 flows into the central through cavity 601 through the drive shaft 3, it will quickly be divided into each exhaust diffusion cavity 602 and sprayed out at high speed from the fine slits at the bottom edge of the grinding wheel 4, forming an air curtain with a certain pressure on the surface of the aluminum sheet to be processed. On the one hand, this air curtain can effectively blow away particulate waste chips such as aluminum chips generated during the grinding process to prevent their accumulation from affecting the grinding quality; on the other hand, the presence of the air curtain can isolate the outside air and avoid the surface of the aluminum sheet being affected by high-temperature oxidation during the grinding process, thus affecting the processing effect. Working principle: The drive motor 503 is controlled by the main body 1 of the grinding machine to operate, driving the drive bevel gear 502 to rotate, causing the ring gear 501 to rotate, and further causing the drive shaft 3 to rotate at high speed. The internal eddy current fan 6 rotates accordingly to generate eddy currents, sucking in gas from the top, passing through the hollow part of the drive shaft 3, through the central through cavity 601, and then discharging from the multiple exhaust diffusion cavities 602. In cooperation with the high-speed rotation of the grinding wheel 4, an air curtain that spreads from the center to the periphery is formed, ensuring that the entire grinding area can be evenly covered by the air curtain, effectively isolating oxygen, and protecting the surface of the aluminum sheet from being oxidized during the grinding process.

[0023] To further optimize the processing environment for the surface treatment of aluminum sheets and the waste chip recycling efficiency, the present invention innovatively provides a protective outer cover 7 between the drive shaft 3 and the output end of the grinding wheel machine main body 1, and integrates an efficient chip collection structure 9 to form a complete waste chip collection system. The protective outer cover 7 is made of high-strength transparent polycarbonate material and is stably assembled with the outer periphery of the output end of the grinding wheel machine main body 1 through a precise snap connection structure, while maintaining a safe clearance from the outer periphery of the drive shaft 3. This not only ensures the free rotation of the drive shaft 3 is not affected but also effectively blocks the waste chips flying at high speed during the grinding process. The protective outer cover 7 is designed in a frustum shape, and a connection interface of the chip collection structure 9 extends from the outer arc side of its bottom end, realizing a seamless connection between the protection and chip collection functions. The chip collection structure 9 is composed of a chip collection shell 901, a curved arc guiding plate 11, and a chip inlet ladder groove 903. One side of the chip collection shell 901 is a U-shaped groove structure, and its inlet end is accurately docked with the output direction of the curved arc guiding plate 11 and remains horizontal. The lowest height horizontal plane of the curved arc guiding plate 11 is the same as the bottom of the grinding wheel 4, ensuring that waste chips can smoothly enter the interior of the chip collection shell 901. The curved arc guiding plate 11 adopts a smooth arc-shaped flow guiding design, and its surface is polished to effectively reduce the frictional resistance between the waste chips and the plate surface. Through the principle of aerodynamics, the waste chips blown by the air curtain are accurately guided to the inlet end of the chip collection shell 901. The chip collection area 902 on the outer edge of the chip collection shell 901 is the final storage space for waste chips. Multiple chip inlet ladder grooves 903 are evenly distributed on its side wall. The chip inlet ladder grooves 903 are in a slope-shaped structure parallel to the output direction of the curved arc guiding plate 11. After precise angle calculation and fluid dynamics simulation optimization, the slope angle is set between 15° - 25°. This can not only ensure that the waste chips slide smoothly along the slope under the action of wind force but also make them naturally fall into the interior of the chip collection area 902 when the gravity and wind force of the waste chips reach equilibrium. This design effectively avoids the accumulation and blockage of waste chips in the chip collection shell 901, ensuring the continuity and high efficiency of waste chip collection. At the same time, the slope surface of the chip inlet ladder grooves 903 is treated with anti-slip texture, further enhancing the guiding effect on waste chips and improving the overall chip collection efficiency.

[0024] Working principle: During the grinding process, most of the waste chips will fly in all directions, and a small part will be in the exhaust cavity 602 area. With the wind force of the air curtain, the waste chips will be blown towards the curved arc guiding plate 11. Through the curved arc guiding of the curved arc guiding plate 11, they will be input into the inlet end of the chip collection shell 901. Then, with the design of multiple chip inlet ladder grooves 903, when the wind force blows the waste chips, the waste chips are input in the horizontal direction of the slope surface of the chip inlet ladder grooves 903. When the gravity of the waste chips offsets the wind force, they fall into the interior of the chip collection area 902 through the multiple chip inlet ladder grooves 903, realizing the centralized collection of waste chips.

[0025] In order to further reduce the entry of external oxygen and reduce oxidation, a sealing structure 8 is connected to the outer edge of the bottom end of the protective cover 7. The sealing structure 8 includes a connecting ring edge 801, the connecting ring edge 801 is connected to the outer cover body 701, a curved arc elastic piece 802 is connected to the bottom of the connecting ring edge 801. The curved arc elastic piece 802 is made of elastic metal material. The cross-section of the curved arc elastic piece 802 is curved arc-shaped and forms an overall annular structure. The horizontal direction of the curved arc elastic piece 802 is composed of multiple wave folds. An edge-sealing elastic outer layer 803 is bonded to the bottom arc side of the curved arc elastic piece 802, and the edge-sealing elastic outer layer 803 is latex or natural rubber.

[0026] Working principle: Through the elasticity of the curved arc elastic piece 802, it can ensure the fit with the surface of the aluminum material. Due to the wave structure design of the curved arc elastic piece 802 and the elasticity of the edge-sealing elastic outer layer 803, when grinding, when passing through a surface with minute unevenness, its up-and-down wave design can generate minute deformations. Cooperating with the edge-sealing elastic outer layer 803, it can maintain a sealed state during the passing process, reducing the entry of external oxygen.

[0027] In order to achieve the transfer of oxygen in the internal circulation, the protective cover 7 includes an outer cover body 701. An inner cover body 702 is arranged below the outer cover body 701. A curved arc guiding plate 11 is bonded to the bottom of the inner cover body 702. The curved arc guiding plate 11 is a curved arc surface and is made of rubber material. An intermediate layer 703 is arranged between the inner cover body 702 and the outer cover body 701. A central block 704 is arranged at the center of the bottom of the inner cover body 702.

[0028] An oxygen-blocking structure 10 is arranged inside the protective cover 7. The oxygen-blocking structure 10 includes a plurality of gas-collecting channels 101. One side of the gas-collecting channel 101 is blocked by a zeolite ring body 102. The oxygen-blocking structure 10 further includes an air storage cavity 103 for storing oxygen. The air storage cavity 103 is opened inside the central block 704. The two sides of the air storage cavity 103 are respectively connected to the output part and the middle section of the gas-collecting channel 101, and the cross-section of the connection part is an arc-shaped curved arc. The zeolite ring body 102 is made of zeolite material, and the zeolite ring body 102 fits the outer cover body 701, the inner cover body 702 and the intermediate layer 703.

[0029] In order to ensure that the air curtain has sufficient gas, the gas-collecting channel 101 includes a main channel 1011. The main channel 1011 is a linear cavity opened along the side wall of the intermediate layer 703. A plurality of branch channels 1012 are opened on both side edges of the main channel 1011. The branch channels 1012 are arc-shaped guiding channels. The end of the branch channel 1012 facing the gas outlet is an acute angle for accelerating the gas flow velocity, and the other end of the branch channel 1012 is an obtuse angle. The top of the chip collection shell 901 is connected to the lower half of the main channel 1011 by an input pipe 904, and the input pipe 904 is inclined and connected to the main channel 1011 in the input direction.

[0030] Working principle: Through the sealing of the internal air by the protective cover 7, the arc-shaped elastic piece 802 and the edge-sealing elastic outer layer 803, the entry of external gas is avoided. The airflow generated by the air curtain takes away the air around the grinding wheel 4 and moves towards the chip collection shell 901. The airflow is input into the main flow channel 1011 through the input pipe 904. When the airflow is input, part of the airflow will converge again through multiple shunt channels 1012. Since the acute-angle convergence of the shunt channel 1012 and the main flow channel 1011 accelerates in the same direction, a flow channel with an airflow velocity that can be accelerated multiple times is formed, improving the internal gas flow velocity efficiency. The non-oxygen gas passes through the zeolite ring body 102 again and is inhaled by the eddy fan 6 again to form a cycle, while the oxygen that cannot pass through the zeolite is retained in the gas storage cavity 103. The output position of the gas storage cavity 103 is also an inclined guide pipe, which can further enhance the gas flow velocity.

[0031] The embodiments disclosed in the present invention are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A surface treatment device for an aluminum plate, characterized in that: The invention comprises a grinding machine body (1), a handle (2) being connected to one side of the grinding machine body (1), a drive shaft (3) being installed at the output end of the grinding machine body (1), the center of the drive shaft (3) being hollow, a grinding wheel (4) being installed at the bottom end of the drive shaft (3), an air curtain channel being provided at the bottom of the grinding wheel (4), a drive structure (5) being installed at the outer periphery of the top end of the drive shaft (3), and a vortex fan (6) being provided at the top end of the drive shaft (3); A protective outer cover (7) is arranged between the outer periphery of the drive shaft (3) and the outer periphery of the output end of the grinding machine body (1); the outer edge of the bottom end of the protective outer cover (7) is connected to a sealing structure (8); the sealing structure (8) comprises a curved spring piece (802); the curved spring piece (802) is made of an elastic metal material; the outer arc side of the bottom end of the protective outer cover (7) is connected to a chip collecting structure (9); an oxygen barrier structure (10) is arranged inside the protective outer cover (7); the oxygen barrier structure (10) comprises a plurality of gas collecting channels (101); one side of the gas collecting channels (101) is blocked by a zeolite ring body (102).

2. The aluminum plate surface treatment device according to claim 1, characterized in that: The driving structure (5) comprises a ring gear (501), the inner ring of the ring gear (501) being connected to the outer periphery of the driving shaft (3), the outer periphery of the ring gear (501) being meshed with a driving bevel gear (502), and a driving motor (503) being mounted on one end of the driving bevel gear (502).

3. The aluminum plate surface treatment device according to claim 2, characterized in that: The air curtain channel comprises a central through cavity (601), the central through cavity (601) is opened at the center of the grinding wheel (4) and is connected to the drive shaft (3), the outer periphery of the central through cavity (601) is connected to a plurality of exhaust cavities (602), and the plurality of exhaust cavities (602) are distributed in an array with the grinding wheel (4) as the center.

4. The surface treatment device for an aluminum plate according to claim 3, characterized in that: The protective outer cover (7) comprises an outer cover body (701), an inner cover body (702) is arranged below the outer cover body (701), a curved guide plate (11) is bonded to the bottom of the inner cover body (702), the curved guide plate (11) is a curved surface and is made of rubber material, an intermediate layer (703) is arranged between the inner cover body (702) and the outer cover body (701), and a center block (704) is arranged at the center of the bottom of the inner cover body (702).

5. The aluminum plate surface treatment device according to claim 4, characterized in that: The sealing structure (8) comprises a connecting ring edge (801), the connecting ring edge (801) is connected to the outer cover body (701), the bottom of the connecting ring edge (801) is fixed to a curved spring piece (802), the curved spring piece (802) has a curved cross section and forms an annular structure as a whole.

6. The aluminum plate surface treatment device according to claim 5, characterized in that: The curved spring piece (802) is composed of multiple wave folds in the horizontal direction, and an edge-sealed elastic outer layer (803) is bonded to the curved side of the bottom of the curved spring piece (802).

7. The aluminum plate surface treatment device according to claim 6, characterized in that: The chip collecting structure (9) comprises a chip collecting shell (901), the inlet end of the chip collecting shell (901) is connected to the output direction of the curved arc guide plate (11) and remains horizontal, the outer edge of the chip collecting shell (901) is a chip collecting area (902), and the side wall of the chip collecting area (902) is provided with a plurality of chip feeding ladder grooves (903), and the chip feeding ladder grooves (903) are sloped and horizontal to the output direction of the curved arc guide plate (11).

8. The aluminum plate surface treatment device according to claim 7, characterized in that: The oxygen barrier structure (10) comprises an air storage chamber (103) for storing oxygen, the air storage chamber (103) being opened inside the central block (704), the two sides of the air storage chamber (103) being respectively connected to the output portion and the middle section of the collecting flow channel (101), and the cross section of the connection is an arc-shaped curved arc, the zeolite ring body (102) is made of zeolite material, and the zeolite ring body (102) is fitted to the outer cover body (701), the inner cover body (702) and the middle layer (703).

9. The aluminum plate surface treatment device according to claim 8, characterized in that: The collecting flow channel (101) comprises a main flow channel (1011), wherein the main flow channel (1011) is a straight cavity opened along the side wall of the middle layer (703), and a plurality of branch flow channels (1012) are opened on both sides of the main flow channel (1011), wherein the branch flow channels (1012) are arc-shaped guiding channels, and the branch flow channels (1012) have an acute angle at one end toward the gas outlet to accelerate the flow rate of the incoming gas, and the other end of the branch flow channel (1012) is an obtuse angle.

10. The aluminum plate surface treatment device according to claim 9, characterized in that: An input pipe (904) is connected between the top of the chip collecting shell (901) and the lower half of the main channel (1011), and the input pipe (904) is connected to the main channel (1011) in an inclined manner in the input direction.

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