Dust-free polishing device for aluminum alloy structural part machining

Abstract

The invention relates to the technical field of machine tools for metal polishing, in particular to a dust-free polishing device for aluminum alloy structural part machining. The polishing module is arranged on the rack; the sealing module is movably arranged on the rack, the sealing module can be close to or away from the polishing module, and when the sealing module is close to the polishing module, the sealing module and the polishing module can form a sealing cavity; and the cleaning and drying module is arranged on the rack and connected with the sealing module, and the cleaning and drying module can clean and dry the polishing module located in the sealing cavity in sequence. The method has the effect of reducing the possibility of reduction of the surface quality of the workpiece.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of metal polishing machines, in particular to a dust-free polishing device for aluminum alloy structural part machining. BACKGROUND

[0002] At present, aluminum alloy is widely used in modern industry due to its light weight, high specific strength and other characteristics. Especially in the manufacturing of high-quality aluminum alloy sheet and high-toughness lightweight structural part die-cast aluminum alloy, the aluminum alloy not only needs to meet strict mechanical performance indicators, but also needs to have excellent surface quality. In the machining process of aluminum alloy structural parts, the polishing process is a crucial surface treatment link. Through polishing, the surface finish of the workpiece can be significantly improved, making it more aesthetically pleasing, and also meeting some special use requirements. Good polishing quality can improve the corrosion resistance and wear resistance of the workpiece, prolonging its service life. With the continuous development of the aerospace and automobile manufacturing industries, the surface quality requirements for aluminum alloy structural parts are becoming higher and higher, so the importance of the polishing process is increasingly prominent.

[0003] In the intelligent manufacturing equipment industry, forming machines such as die casting machines and punching machines have achieved high precision and high efficiency production, but the subsequent polishing link still relies on polishing belts to polish aluminum alloy structural parts. However, in the polishing process, the surface of the polishing belt will embed a large amount of aluminum alloy powder, and the common polishing device has no special cleaning structure. With the continuous circulation of the polishing belt, the aluminum alloy powder remaining on its surface will continuously come into contact with the workpiece surface, and due to the different particle sizes of the aluminum alloy powder, in the process of repeatedly scratching the workpiece, scratches of different depths and sizes will be formed on the workpiece surface, resulting in "fog-like scratches" on the polished surface, and thus leading to a decline in the surface quality of the workpiece.

[0004] Therefore, there is an urgent need for a dust-free polishing device for aluminum alloy structural part machining. SUMMARY

[0005] In order to reduce the possibility of a decline in the surface quality of the workpiece, the application provides a dust-free polishing device for aluminum alloy structural part machining.

[0006] The dust-free polishing device for aluminum alloy structural part machining provided by the application adopts the following technical scheme: A dust-free polishing device for aluminum alloy structural part machining, comprising: a rack; a polishing module arranged on the rack; a sealing module movably arranged on the rack, the sealing module being capable of approaching or moving away from the polishing module, and the sealing module being capable of forming a sealed cavity with the polishing module when the sealing module approaches the polishing module; A cleaning and drying module is mounted on the frame and connected to the sealing module. The cleaning and drying module is capable of sequentially cleaning and drying the polishing module located in the sealing cavity.

[0007] By adopting the above technical solution, during the processing of aluminum alloy structural parts, the polishing module, mounted on the frame, can perform polishing operations on the workpiece. The sealing module is movably mounted on the frame and can be close to or away from the polishing module. When the sealing module is close to the polishing module to form a sealed cavity, the cleaning and drying module can sequentially clean and dry the polishing module located within the sealed cavity. This removes aluminum alloy powder embedded on the surface of the polishing module, preventing residual powder from repeatedly scraping the workpiece as the polishing module moves, thus preventing "foggy scratches" from appearing on the workpiece surface. This improves the surface quality of the workpiece, effectively reduces the possibility of surface quality degradation, and ensures that the polishing module is always in a clean and dry state, which is conducive to continuous and efficient polishing operations.

[0008] Optionally, the polishing module includes a rotating component and a grinding component. The rotating component is mounted on the frame, and two sets of grinding components are provided. The two sets of grinding components are arranged opposite to each other on the rotating component. The rotating component can drive the two sets of grinding components to rotate. The sealing module can form a sealing cavity with the rotating component to accommodate any one of the grinding components.

[0009] By adopting the above technical solution, the rotating component drives the two sets of grinding components to rotate, so that the sealed cavity formed between the sealing module and the rotating component can accommodate any grinding component. This allows one grinding component to perform polishing operations while the other grinding component enters the sealed cavity for subsequent cleaning and drying operations. This enables the parallel operation of grinding and maintenance of the grinding components, improves the working efficiency of the device, and avoids the waste of time caused by waiting for the grinding components to be maintained. At the same time, the formation of the sealed cavity helps to prevent impurities and moisture generated during the cleaning and drying of the grinding components from spreading to the surrounding environment, ensuring the cleanliness of the working environment and the stability of product quality.

[0010] Optionally, the rotating assembly includes a rotating drive and a rotating base. The rotating drive is mounted on the frame, and the rotating base is rotatably connected to the frame and connected to the rotating drive. The sealing module can form the sealing cavity with the rotating base. The polishing assembly includes a polishing drive, a polishing belt, and a bracket. The bracket and the polishing drive are respectively disposed on the rotating base. The bracket extends away from the rotating base. The polishing belt is disposed on the bracket. The polishing drive passes through the bracket and is connected to the polishing belt.

[0011] By adopting the above technical solution, the rotary drive component drives the rotary seat to rotate, thereby causing the two sets of grinding components mounted on the rotary seat to rotate, enabling polishing of aluminum alloy structural parts at different locations. Simultaneously, the sealing module forms a sealed cavity with the rotary seat, isolating the cleaning area from the outside environment. This allows the cleaning and drying module to clean and dry the grinding belt within the sealed cavity, removing embedded aluminum alloy powder and preventing residual powder from repeatedly scraping the workpiece with the grinding belt, thus preventing "foggy scratches" and improving the surface quality of the workpiece.

[0012] Optionally, the sealing module includes a lifting drive and a sealing chamber. The sealing chamber is disposed within the frame and located below the rotating seat. The sealing chamber is connected to the cleaning and drying module. The lifting drive is disposed on the frame and connected to the sealing chamber. The lifting drive can drive the sealing chamber to press against the rotating seat to form the sealing cavity.

[0013] By adopting the above technical solution, the sealing chamber is set inside the frame and located below the rotating seat. The lifting drive component is set on the frame and connected to the sealing chamber, and can drive the sealing chamber to move when it is working. When the sealing chamber is pressed against the rotating seat, a sealed cavity is formed, which allows the cleaning and drying module to perform cleaning and drying operations on the grinding belt located therein in sequence. This reduces the leakage of liquids and gases during cleaning and drying, improves the cleaning and drying effect, and also reduces the impact of cleaning fluid and drying gas on the surrounding environment.

[0014] Optionally, the sealing chamber is provided with a clearance groove, the bracket can be inserted into the clearance groove, and sealing gaskets are respectively provided between the sealing chamber and the rotating seat, and between the bracket and the inner wall of the clearance groove.

[0015] By adopting the above technical solution, a clearance groove is opened on the sealing chamber, allowing the bracket to be inserted into the clearance groove. Sealing gaskets are also installed between the sealing chamber and the rotating seat, and between the bracket and the inner wall of the clearance groove. This arrangement enhances the sealing performance between the sealing chamber and the rotating seat, as well as the bracket. When the cleaning and drying module performs cleaning and drying operations on the polishing module located within the sealing chamber, the excellent sealing performance prevents leakage of cleaning fluid and moisture generated during the drying process, ensuring efficient cleaning and drying within the sealing chamber and avoiding pollution to the surrounding environment. Simultaneously, it improves the cleaning and drying effect, ensuring the polishing module is in good working condition, thereby enhancing the polishing quality of the aluminum alloy structural parts.

[0016] Optionally, the cleaning and drying module includes a liquid storage component, a cleaning component, and a vacuum component. The liquid storage component is mounted on the frame. The cleaning component is connected to both the sealing chamber and the liquid storage component. The vacuum component is connected to both the sealing chamber and the liquid storage component. A pressure relief valve is provided on the sealing chamber.

[0017] By adopting the above technical solution, the liquid storage component provides the cleaning component with the necessary cleaning liquid. The cleaning component is connected to the sealing chamber and the liquid storage component, enabling the liquid in the liquid storage component to be transported to the sealing chamber to clean the grinding belt located within the sealed cavity. Simultaneously, the vacuum component is connected to the sealing chamber and the liquid storage component, allowing for vacuuming of the sealing chamber after cleaning. Combined with the pressure relief valve on the sealing chamber to control pressure changes, this accelerates the evaporation rate of the liquid on the grinding belt surface, achieving drying of the grinding belt and ensuring it remains clean and dry. This prevents residual impurities from affecting the workpiece surface quality and prevents metal powder from diffusing into the surrounding environment, improving workshop air quality.

[0018] Optionally, the cleaning component includes an ultrasonic generator and an atomizing nozzle, wherein the ultrasonic generator and the atomizing nozzle are respectively disposed on the sealed chamber, and the sealed chamber and the atomizing nozzle are respectively connected to the liquid storage component.

[0019] By adopting the above technical solution, the ultrasonic generator and atomizing nozzle are installed inside the sealed chamber and connected to the liquid storage component, which provides liquid to the sealed chamber and the atomizing nozzle. The atomizing nozzle atomizes the liquid, increasing the contact area with the grinding belt. Simultaneously, the ultrasonic waves generated by the ultrasonic generator act on the liquid, producing a cavitation effect. When the cavitation bubbles collapse, they generate a powerful impact force, thereby more effectively removing the aluminum alloy powder embedded in the grinding belt. This achieves deep cleaning of the grinding belt surface, ensuring the cleanliness of the grinding belt, preventing residual powder from scraping the workpiece with the circulating movement of the grinding belt, improving the surface polishing quality of the workpiece, and reducing the diffusion of metal powder into the surrounding environment, improving workshop air quality and protecting worker health.

[0020] Optionally, the sealed chamber is equipped with a drain valve, and the liquid storage assembly includes a first storage tank and a second storage tank respectively mounted on the frame. The first storage tank and the second storage tank are respectively equipped with a liquid supply pump. The second storage tank is connected to the atomizing nozzle through a hose and is connected to the vacuum assembly. The first storage tank is connected to the sealed chamber through a hose and is equipped with a filter element. The drain valve is connected to the filter element through a hose so that the liquid discharged from the sealed chamber can pass through the filter element and enter the first storage tank.

[0021] By adopting the above technical solution, the first and second storage tanks are respectively equipped with liquid supply pumps, which provide liquid power to the sealing chamber and atomizing nozzles, ensuring the stability of the liquid supply. The first storage tank is connected to the sealing chamber via a hose, allowing liquid to be delivered into the sealing chamber for cleaning the polishing belt; the second storage tank is connected to the atomizing nozzle via a hose, providing liquid to the atomizing nozzle to create an atomization effect and enhance cleaning capability. The filter element installed on the first storage tank is connected to the drain valve on the sealing chamber via a hose, allowing the liquid discharged from the sealing chamber to pass through the filter element and re-enter the first storage tank, realizing the recycling of the liquid. This saves resources and avoids liquid waste. At the same time, the filter element can remove metal impurities from the liquid, ensuring the cleanliness of the circulating liquid, thereby ensuring the cleaning effect on the polishing belt, keeping the polishing belt clean and dry at all times, and improving the polishing quality of the aluminum alloy structural parts.

[0022] Optionally, the sealed chamber is provided with a vacuum interface, and the vacuum assembly includes a vacuum pump and a gas-liquid separation tank. The gas-liquid separation tank is mounted on the frame, and the vacuum pump is mounted on the gas-liquid separation tank. The vacuum pump is connected to the vacuum interface through a hose.

[0023] By adopting the above technical solution, a vacuum interface is installed on the sealed chamber. A vacuum pump is connected to the gas-liquid separator and the vacuum interface via a hose. When the vacuum pump is working, it can extract the air from the sealed chamber, creating a negative pressure environment inside. At the same time, the gas-liquid separator can separate the liquid from the gas to ensure that the emitted gas meets environmental protection requirements.

[0024] Optionally, the frame is provided with a suction assembly, which includes a suction box and a suction pump respectively disposed on the frame. The suction box has multiple suction holes on its top, which are evenly distributed. The suction box is disposed close to the polishing module and connected to the suction pump.

[0025] By adopting the above technical solution, during the polishing process of aluminum alloy structural parts, a negative pressure is formed in the suction box after the air pump is started. Because the top of the suction box has multiple evenly distributed suction holes, and the suction box is positioned close to the polishing module, the metal dust generated during the polishing of the aluminum alloy structural parts can be quickly drawn into the suction box through the suction holes under the negative pressure. This effectively reduces the diffusion of metal dust in the surrounding environment, avoids a decrease in air quality in the workshop, and reduces the risk of respiratory diseases caused by long-term inhalation of metal dust by workers. It also avoids the problem of residual powder repeatedly scraping the workpiece with the grinding belt, resulting in "foggy scratches," thus ensuring the surface quality of the workpiece.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the cooperation of the polishing module, sealing module and cleaning and drying module, the polishing module located in the sealed cavity can be cleaned and dried in sequence. This can remove the aluminum alloy powder embedded on the surface of the polishing module, prevent residual powder from repeatedly scraping the workpiece with the movement of the polishing module, prevent "fog-like scratches" from appearing on the workpiece surface, thereby improving the surface quality of the workpiece, effectively reducing the possibility of the workpiece surface quality deterioration, and ensuring that the polishing module is always in a clean and dry state, which is conducive to continuous and efficient polishing operations. 2. By cooperating with the rotating component and the grinding component, while one grinding component is performing polishing operations, the other grinding component can enter the sealed cavity for subsequent cleaning and drying operations. This achieves parallel grinding operations and maintenance of the grinding components, improves the working efficiency of the device, and avoids wasting time waiting for the grinding components to be maintained. 3. Through the cooperation of the liquid storage component, cleaning component, and vacuum component, the liquid in the liquid storage component can be transported to the sealed chamber to clean the grinding belt located in the sealed cavity. The vacuum component can perform a vacuuming operation on the sealed chamber after cleaning. Combined with the pressure relief valve on the sealed chamber to control the air pressure change, the evaporation rate of the liquid on the surface of the grinding belt can be accelerated, thereby achieving the drying treatment of the grinding belt and ensuring that the grinding belt is always clean and dry, avoiding residual impurities from affecting the surface quality of the workpiece. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a dust-free polishing device for processing aluminum alloy structural parts according to an embodiment of this application.

[0028] Figure 2 This is a schematic diagram of the internal structure of a dust-free polishing device for processing aluminum alloy structural parts according to an embodiment of this application.

[0029] Figure 3 This is a side view of a dust-free polishing device for processing aluminum alloy structural parts according to an embodiment of this application.

[0030] Figure 4 It is along Figure 3 A partial structural cross-sectional view of the rotating seat and sealing chamber of the AA line in a tight fit.

[0031] Figure 5 It is along Figure 3 A partial structural cross-sectional view of the rotating seat and sealing chamber of the AA line in a state where they are not tightly attached.

[0032] Figure 6 This is a front view of a dust-free polishing device for processing aluminum alloy structural parts according to an embodiment of this application.

[0033] Figure 7 It is along Figure 6 A partial structural cross-sectional view of the BB line in the middle.

[0034] Explanation of reference numerals in the attached figures: 1. Frame; 11. Evacuation box; 111. Evacuation port; 2. Polishing module; 21. Rotating assembly; 211. Rotating drive; 212. Rotating seat; 22. Grinding assembly; 221. Grinding drive; 222. Grinding belt; 223. Bracket; 3. Sealing module; 31. Lifting drive; 32. Sealing chamber; 321. Clearing groove; 322. Sealing gasket; 323. Drain valve; 324. Vacuum interface; 4. Cleaning and drying module; 41. Liquid storage assembly; 411. First storage tank; 4111. Filter; 412. Second storage tank; 413. Liquid supply pump; 42. Cleaning assembly; 421. Ultrasonic generator; 422. Atomizing nozzle; 43. Vacuum assembly; 431. Vacuum pump; 432. Gas-liquid separator; 5. Sealing cavity. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0036] This application discloses a dust-free polishing device for machining aluminum alloy structural components. This device is particularly suitable for high-gloss polishing of structural components made of high-quality aluminum alloy sheets or high-strength, lightweight die-cast aluminum alloys. These materials are widely used in aerospace, new energy vehicles, and other fields with stringent requirements for component weight, strength, and surface quality. With the development of intelligent manufacturing equipment, forming equipment such as high-precision die-casting machines and multi-axis CNC machine tools can efficiently produce aluminum alloy blanks with complex shapes and precise dimensions. This places higher demands on the efficiency, automation, and dust-free operation of subsequent polishing processes. This device is designed to match these advanced manufacturing processes.

[0037] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Reference Figure 1 and Figure 2A dust-free polishing device for processing aluminum alloy structural parts includes a frame 1, a polishing module 2, a sealing module 3, and a cleaning and drying module 4. The polishing module 2 is mounted on the frame 1, the sealing module 3 is movably mounted on the frame 1 and can be close to or away from the polishing module 2, and the cleaning and drying module 4 is mounted on the frame 1 and connected to the sealing module 3. This module sequentially cleans and dries the polishing module 2, removing aluminum alloy powder embedded in the surface of the polishing module 2, preventing residual powder from scratching the workpiece, improving the surface quality of the workpiece, and ensuring that the polishing module 2 remains clean and dry, thus facilitating continuous and efficient polishing operations.

[0039] Specifically, the polishing module 2 includes a rotating assembly 21 and a grinding assembly 22. The rotating assembly 21 includes a rotating drive 211 and a rotating base 212. The rotating drive 211 is mounted on the frame 1, and the rotating base 212 is rotatably connected to the frame 1 and fixedly connected to the output end of the rotating drive 211. In this embodiment, the rotating drive 211 is a motor, so as to drive the rotating base 212 to rotate using the rotating drive 211. In other embodiments, the rotating drive 211 may also be a hydraulic motor.

[0040] Two sets of grinding components 22 are provided, and the two sets of grinding components 22 are arranged opposite to each other on the rotating base 212. Each grinding component 22 includes a grinding drive 221, a grinding belt 222, and a bracket 223. The grinding drive 221 and the bracket 223 are respectively mounted on the rotating base 212. The bracket 223 extends away from the rotating base 212, and the grinding belt 222 is disposed on the bracket 223.

[0041] In this embodiment, the grinding drive 221 is a motor, and an output shaft is fixedly connected to the grinding drive 221. The output shaft passes through the bracket 223 and is connected to the grinding belt 222, so that the grinding drive 221 can drive the grinding belt 222 to move continuously, so that the grinding belt 222 can contact the workpiece for polishing.

[0042] In response to the high surface hardness and susceptibility to fine scratches of high-strength and tough aluminum alloy structural components, this device can be equipped with a polishing belt 222 made of special polishing material. By precisely controlling the rotation speed and pressure of the polishing drive component 221, efficient and gentle polishing can be achieved, maximizing the surface finish.

[0043] It should be noted that the specific material selection for the grinding belt 222 and the specific connection method between the output shaft and the grinding belt 222 are all options that can be set by those skilled in the art according to actual needs, and therefore will not be elaborated upon in the embodiments of this application. Furthermore, a dynamic sealing device, such as a rotary shaft seal, is provided between the output shaft and the bracket 223 to ensure sealing while the output shaft rotates.

[0044] Reference Figure 1The rotary drive 211 drives the rotating base 212 to rotate, causing the two grinding belts 222 mounted on the rotating base 212 to rotate accordingly, enabling polishing of aluminum alloy structural parts at different locations. Simultaneously, when the grinding belts 222 are in a horizontal state, one grinding belt 222 can perform polishing operations, while the other grinding belt 222 can enter the sealed cavity 5 for subsequent cleaning and drying operations. This allows for parallel grinding operations and maintenance of the grinding assembly 22, improving the device's working efficiency and avoiding time wasted waiting for maintenance of the grinding assembly 22.

[0045] This dual-station design effectively meets the requirements of intelligent manufacturing equipment for high-speed, continuous production, enabling the device to be seamlessly integrated into an automated polishing unit where robots handle workpiece loading and unloading.

[0046] Reference Figure 2 The sealing module 3 includes a lifting drive component 31 and a sealing chamber 32. The lifting drive component 31 is mounted on the frame 1, and the sealing chamber 32 is disposed inside the frame and located below the rotating seat 212. The lifting drive component 31 is connected to the sealing chamber 32.

[0047] Reference Figure 3 and Figure 4 In this embodiment, the lifting drive 31 is a cylinder, which enables the lifting drive 31 to drive the sealing chamber 32 to rise and fall, so that the sealing chamber 32 moves closer to or away from the rotating seat 212, and the sealing chamber 32 can rise to a position that is in close contact with the rotating seat 212 to form a sealing cavity 5. In other embodiments, the lifting drive 31 may also be configured as an electric push rod or a lead screw lifting mechanism.

[0048] Reference Figure 4 and Figure 5 The sealing chamber 32 has a clearance groove 321, into which the bracket 223 can be inserted. Sealing gaskets 322 are filled between the sealing chamber 32 and the rotating seat 212, and between the bracket 223 and the inner wall of the clearance groove 321, to enhance the sealing performance between the sealing chamber 32 and the rotating seat 212, as well as the bracket 223. In this embodiment, the sealing gasket 322 is made of rubber, which has good elasticity and sealing performance, effectively improving the sealing performance of the sealing cavity 5.

[0049] Reference Figure 6 and Figure 7The cleaning and drying module 4 includes a liquid storage component 41, a cleaning component 42, and a vacuum component 43. The liquid storage component 41 includes a first storage tank 411 and a second storage tank 412 respectively mounted on the frame 1. A liquid supply pump 413 is correspondingly installed on each of the first and second storage tanks 411 and 412. In this embodiment, the liquid supply pump 413 is a centrifugal pump. The first storage tank 411 stores cleaning fluid, and the second storage tank 412 stores cleaning water. For high-quality aluminum alloy workpieces, the selection of the cleaning fluid must consider both corrosion resistance and cleaning efficiency. This device can be adapted to neutral or specialized aluminum alloy cleaning agents to avoid corrosion of the workpiece and the grinding belt 222.

[0050] A drain valve 323 is provided at the bottom of the sealed chamber 32. The liquid supply pump 413 corresponding to the first storage tank 411 is connected to the sealed chamber 32 through a hose. A filter element 4111 is provided on the first storage tank 411. The drain valve 323 is connected to the filter element 4111 through a hose so that the liquid discharged from the sealed chamber 32 can pass through the filter element 4111 and enter the first storage tank 411.

[0051] In this embodiment, the filter element 4111 is a filter screen, which has good corrosion resistance and filtration performance, and can remove metal impurities from the liquid, ensuring the cleanliness of the circulating liquid, thereby ensuring the cleaning effect on the grinding belt 222. In other embodiments, the filter element 4111 can also be set as a hydrocyclone separator or a membrane filter to separate metal impurities from the liquid.

[0052] Reference Figure 7 The cleaning component 42 includes an ultrasonic generator 421 and an atomizing nozzle 422. The ultrasonic generator 421 and the atomizing nozzle 422 are respectively installed on the sealed chamber 32, with the ultrasonic generator 421 located on the outside of the sealed chamber 32 and one end of the atomizing nozzle 422 extending into the interior of the sealed chamber 32. The second storage tank 412 is connected to the atomizing nozzle 422 via a hose, so that the liquid supply pump 413 can deliver water from the second storage tank 412 to the atomizing nozzle 422.

[0053] The ultrasonic generator 421 generates ultrasonic waves that create a cavitation effect on the liquid, more effectively removing aluminum alloy powder from the polishing belt 222. The atomizing nozzle 422 is a high-pressure atomizing nozzle that atomizes the liquid, increasing the contact area with the polishing belt 222 and enhancing the cleaning effect.

[0054] Reference Figure 4 and Figure 7When cleaning the polishing belt 222 inside the sealed cavity 5 is required, the cleaning fluid stored in the first storage tank 411 is first delivered to the sealed chamber 32 by the liquid supply pump 413, so that the cleaning fluid submerges the lower part of the polishing belt 222. Then, the ultrasonic generator 421 is activated to generate a cavitation effect in the cleaning fluid, removing aluminum alloy powder from the polishing belt 222. Next, the drain valve 323 is opened to discharge the cleaning fluid from the sealed chamber 32 and return the cleaning fluid to the first storage tank 411. Finally, the liquid supply pump 413 delivers the cleaning water from the second storage tank 412 to the atomizing nozzle 422, which uses a small amount of water to impact the surface of the polishing belt 222 to wash away suspended impurities.

[0055] In this embodiment, the water sprayed from the atomizing nozzle 422 can be guided back to the second storage tank 412 through a hose, or it can be directly discharged to external processing equipment. Furthermore, the abrasive belt 222 can continuously rotate during the cleaning process for thorough cleaning.

[0056] Reference Figure 2 and Figure 7 A vacuum interface 324 is installed on the sealed chamber 32. The vacuum assembly 43 includes a vacuum pump 431 and a gas-liquid separator 432. The gas-liquid separator 432 is mounted on the frame 1, and the vacuum pump 431 is mounted on the gas-liquid separator 432. The vacuum pump 431 is connected to the vacuum interface 324 through a hose.

[0057] After the polishing belt 222 is cleaned, the vacuum pump 431 operates, which extracts the air from the sealed chamber 32, creating a negative pressure environment inside the sealed chamber 32. This causes the pressure inside the sealed chamber 32 to drop below the saturated vapor pressure, thereby causing the moisture on the polishing belt 222 to boil and vaporize instantly at a low temperature and be completely removed, ensuring the dryness of the polishing belt 222 and avoiding damage to the polishing belt 222 from high temperatures.

[0058] The gas extracted by the vacuum pump 431 can be transported to the gas-liquid separator 432, where the gas-liquid separator 432 can separate the liquid from the gas. The liquid can be stored in the gas-liquid separator 432, while the gas can be discharged to the outside, ensuring that the final emitted gas meets environmental protection requirements. Furthermore, the liquid stored in the gas-liquid separator 432 can be transported to a subsequent wastewater treatment device for further processing.

[0059] In this embodiment, a pressure relief valve and a humidity sensor are installed on the sealed chamber 32, with the humidity sensor positioned close to the vacuum interface 324 to monitor the humidity of the discharged gas in real time, serving as a basis for determining whether drying is complete. The introduction of this sensor data enables closed-loop control of the drying process, aligning with the development trend of intelligent manufacturing equipment towards greater intelligence and controllable parameters.

[0060] Reference Figure 1The frame 1 is equipped with a suction assembly, which includes a suction box 11 and a suction pump (not shown in the figure) respectively installed on the frame 1. The suction box 11 has multiple suction holes 111 on its top, which are evenly distributed. The suction box 11 is located near the grinding belt 222 and connected to the suction pump.

[0061] When the air pump is started, a negative pressure is formed in the air extraction box 11, which draws the metal dust generated during the polishing process into the air extraction box 11 through the air extraction hole 111, reducing the diffusion of metal dust in the surrounding environment, avoiding a decrease in air quality in the workshop, protecting the health of workers, and preventing residual powder from scraping the workpiece with the cyclical movement of the polishing belt 222.

[0062] The design of the suction component further enhances the "dust-free" characteristics of this device, meeting the stringent requirements of modern factories for a clean production environment. In particular, it can effectively prevent cross-contamination in production lines connected in series with automated molding machines.

[0063] The implementation principle of the dust-free polishing device for processing aluminum alloy structural parts according to an embodiment of this application is as follows: When the polishing belt 222 needs to be cleaned, the rotary drive 211 drives the polishing belt 222 to rotate through the rotary seat 212, so that the polishing belt 222 to be cleaned moves to the lower position and the clean polishing belt 222 moves to the upper position. At this time, the lifting drive 31 drives the sealing chamber 32 to rise, so that the sealing chamber 32 is pressed tightly against the rotary seat 212 to form a sealing cavity 5. Then, the liquid supply pump 413 delivers the cleaning liquid stored in the first storage tank 411 to the sealing chamber 32, so that the cleaning liquid submerges the lower part of the polishing belt 222. At the same time, the ultrasonic generator 421 works to remove aluminum alloy powder on the polishing belt 222.

[0064] Next, the drain valve 323 is opened, allowing the cleaning fluid to flow back into the first storage tank 411. Then, the supply pump 413 delivers the cleaning water from the second storage tank 412 to the atomizing nozzle 422. The atomizing nozzle 422 uses a small amount of water to impact the surface of the polishing belt 222, washing away impurities on the polishing belt 222. After the water is drained, the vacuum pump 431 operates, causing the pressure inside the sealed chamber 32 to drop below the saturated vapor pressure. This causes the water on the polishing belt 222 to boil and vaporize instantly at a low temperature, completely removing it and ensuring the dryness of the polishing belt 222, thus completing the cleaning process of the polishing belt 222.

[0065] In another preferred embodiment, a circulating water curtain can be installed on the frame 1 to clean the grinding belt 222, and an air knife can be installed to dry the grinding belt 222.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dust-free polishing device for machining aluminum alloy structural parts, characterized in that, include: Rack (1); Polishing module (2) is mounted on the frame (1); A sealing module (3) is movably mounted on the frame (1). The sealing module (3) can move closer to or further away from the polishing module (2). When the sealing module (3) moves closer to the polishing module (2), the sealing module (3) can form a sealing cavity (5) with the polishing module (2). A cleaning and drying module (4) is mounted on the frame (1) and connected to the sealing module (3). The cleaning and drying module (4) can sequentially clean and dry the polishing module (2) located in the sealing cavity (5).

2. The dust-free polishing device for processing aluminum alloy structural parts according to claim 1, characterized in that: The polishing module (2) includes a rotating component (21) and a grinding component (22). The rotating component (21) is mounted on the frame (1). There are two sets of grinding components (22), which are mounted opposite each other on the rotating component (21). The rotating component (21) can drive the two sets of grinding components (22) to rotate. The sealing module (3) can form the sealing cavity (5) with the rotating component (21) to accommodate any of the grinding components (22).

3. The dust-free polishing device for processing aluminum alloy structural parts according to claim 2, characterized in that: The rotating assembly (21) includes a rotating drive (211) and a rotating seat (212). The rotating drive (211) is disposed on the frame (1). The rotating seat (212) is rotatably connected to the frame (1) and connected to the rotating drive (211). The sealing module (3) can form the sealing cavity (5) with the rotating seat (212). The polishing assembly (22) includes a polishing drive (221), a polishing belt (222), and a bracket (223). The bracket (223) and the polishing drive (221) are respectively disposed on the rotating base (212). The bracket (223) extends away from the rotating base (212). The polishing belt (222) is disposed on the bracket (223). The polishing drive (221) passes through the bracket (223) and is connected to the polishing belt (222).

4. The dust-free polishing device for processing aluminum alloy structural parts according to claim 3, characterized in that: The sealing module (3) includes a lifting drive (31) and a sealing chamber (32). The sealing chamber (32) is disposed in the frame (1) and located below the rotating seat (212). The sealing chamber (32) is connected to the cleaning and drying module (4). The lifting drive (31) is disposed on the frame (1) and connected to the sealing chamber (32). The lifting drive (31) can drive the sealing chamber (32) to press against the rotating seat (212) to form the sealing cavity (5).

5. The dust-free polishing device for processing aluminum alloy structural parts according to claim 4, characterized in that: The sealing chamber (32) is provided with a relief groove (321), and the bracket (223) can be inserted into the relief groove (321). Sealing gaskets (322) are respectively provided between the sealing chamber (32) and the rotating seat (212) and between the bracket (223) and the inner wall of the relief groove (321).

6. The dust-free polishing device for processing aluminum alloy structural parts according to claim 4, characterized in that: The cleaning and drying module (4) includes a liquid storage component (41), a cleaning component (42), and a vacuum component (43). The liquid storage component (41) is mounted on the frame (1). The cleaning component (42) is connected to the sealing chamber (32) and the liquid storage component (41) respectively. The vacuum component (43) is connected to the sealing chamber (32) and the liquid storage component (41) respectively. A pressure relief valve is provided on the sealing chamber (32).

7. The dust-free polishing device for processing aluminum alloy structural parts according to claim 6, characterized in that: The cleaning component (42) includes an ultrasonic generator (421) and an atomizing nozzle (422). The ultrasonic generator (421) and the atomizing nozzle (422) are respectively disposed on the sealing chamber (32). The sealing chamber (32) and the atomizing nozzle (422) are respectively connected to the liquid storage component (41).

8. The dust-free polishing device for processing aluminum alloy structural parts according to claim 7, characterized in that: The sealed chamber (32) is provided with a drain valve (323). The liquid storage assembly (41) includes a first storage tank (411) and a second storage tank (412) respectively disposed on the frame (1). The first storage tank (411) and the second storage tank (412) are respectively provided with a liquid supply pump (413). The second storage tank (412) is connected to the atomizing nozzle (422) through a hose. The second storage tank (412) is connected to the vacuum assembly (43). The first storage tank (411) is connected to the sealed chamber (32) through a hose. The first storage tank (411) is provided with a filter element (4111). The drain valve (323) is connected to the filter element (4111) through a hose so that the liquid discharged from the sealed chamber (32) can pass through the filter element (4111) and enter the first storage tank (411).

9. The dust-free polishing device for processing aluminum alloy structural parts according to claim 6, characterized in that: The sealed chamber (32) is provided with a vacuum interface (324). The vacuum assembly (43) includes a vacuum pump (431) and a gas-liquid separator (432). The gas-liquid separator (432) is mounted on the frame (1). The vacuum pump (431) is mounted on the gas-liquid separator (432). The vacuum pump (431) is connected to the vacuum interface (324) through a hose.

10. The dust-free polishing device for processing aluminum alloy structural parts according to claim 1, characterized in that: The frame (1) is provided with a suction assembly, which includes a suction box (11) and a suction pump respectively disposed on the frame (1). The suction box (11) has multiple suction holes (111) on its top, which are evenly distributed. The suction box (11) is disposed close to the polishing module (2) and connected to the suction pump.

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