Convenient polishing and cleaning device for Fe-Si-Al soft magnetic mold

Abstract

The utility model discloses a convenient polishing and cleaning device for an iron-silicon-aluminum soft magnetic mold, which comprises a polishing and cleaning box, an alkaline degreasing fluid supply box, a deionized water supply box, a citric acid and oxalic acid solution supply box and an absolute ethyl alcohol supply box, a driver is connected to the position, close to the left rear end, of the top of the polishing and cleaning box through a bolt, a rotating shaft is connected to the top of the driver through a coupler, a balancing weight is arranged at the left end of the rotating shaft and connected with the rotating shaft through a bolt, and a setting rod is connected to the right end of the rotating shaft through a bolt. The four-step collaborative cleaning process is combined with double-area ultrasonic cleaning, chemical and physical composite cleaning is achieved, oil stains, chippings and oxides on the surface of the iron-silicon-aluminum mold are thoroughly removed, rapid assembly and disassembly and all-dimensional permeation cleaning of multiple sets of molds are supported, and a drying system adopts five sets of angle-adjustable nitrogen nozzles and rotary purging to achieve dead-corner-free drying.

Description

Technical Field

[0001] This utility model relates to the field of mold cleaning technology, specifically a convenient grinding and cleaning device for iron-silicon-aluminum soft magnetic molds. Background Technology

[0002] Iron-silicon-aluminum soft magnetic materials have high saturation magnetic induction intensity, low loss and good temperature stability, and are widely used in electronic components, motor cores and other fields. The molds for these materials need to withstand high temperature and high pressure environments during production, which makes the surface prone to the adhesion of metal debris, oil and oxides. Iron-silicon-aluminum materials are prone to oxidation. If cleaning is not thorough, the residual substances will affect the magnetic properties and dimensional accuracy of subsequent products. Therefore, iron-silicon-aluminum soft magnetic molds need to be cleaned in time after grinding. Most existing methods have improved from manual cleaning to convenient grinding and cleaning devices, but there are still some problems in their use.

[0003] Existing cleaning methods mostly employ single alkaline degreasing or ultrasonic cleaning, which cannot simultaneously remove oil stains, dissolve oxide layers, and remove moisture. In particular, they have limited effectiveness in removing stubborn residues on the surfaces of iron, silicon, and aluminum materials, resulting in substandard mold cleanliness. There are also issues such as insufficient penetration of the cleaning solution. When the mold cavity is complex, such as deep holes or narrow gaps, traditional spraying or immersion methods cannot ensure that the cleaning solution fully contacts the surface to be cleaned. Residual liquid can easily breed bacteria or cause corrosion. The drying methods are outdated, and natural air drying or compressed air blowing can easily introduce impurities and has a long drying time, affecting production efficiency. At the same time, residual moisture may cause the mold to rust. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a convenient grinding and cleaning device for iron-silicon-aluminum soft magnetic molds. Through a four-step coordinated cleaning process—alkaline degreasing, water rinsing, acid neutralization, and ethanol dehydration—combined with dual-zone ultrasonic cleaning, it achieves a chemical and physical composite cleaning, thoroughly removing oil, debris, and oxides from the surface of the iron-silicon-aluminum molds to ensure cleanliness standards are met. The movable, layered placement rack, combined with the cleaning groove and opening design, supports rapid loading and unloading of multiple molds and all-round penetration cleaning. Waste liquid is discharged in real time to avoid secondary pollution. The drying system uses five adjustable-angle nitrogen nozzles, rotating and blowing to achieve drying without dead angles.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a convenient grinding and cleaning device for iron-silicon-aluminum soft magnetic molds, comprising a grinding and cleaning tank, an alkaline degreasing solution supply tank, a deionized water supply tank, a citric acid and oxalic acid solution supply tank, and an anhydrous ethanol supply tank. A rectangular cleaning pool is arranged around the inner wall of the grinding and cleaning tank. A driver is bolted to the top of the grinding and cleaning tank near the left rear end. A rotating shaft is connected to the top of the driver via a coupling. A counterweight is provided at the left end of the rotating shaft and is bolted to it. A setting rod is bolted to the right end of the rotating shaft. Five angle adjustment shafts are provided at the front end of the setting rod and are evenly distributed. A dry nitrogen inlet seat is provided at the front end of each angle adjustment shaft, and a dry nitrogen purging nozzle is provided at the bottom end of each dry nitrogen inlet seat.

[0008] Preferably, a movable placement frame is provided on the inner wall of the cleaning pool. A locking bottom block is welded to the bottom left and bottom right ends of the movable placement frame. Pool bottom protrusion rails are bolted to both ends of the inner wall of the cleaning pool, and the top of the pool bottom protrusion rails is attached to the locking bottom block.

[0009] Preferably, the top, middle, and bottom of the movable placement rack are each provided with a mold placement concave plate. The bottom of the mold placement concave plate is provided with a number of cleaning grooves that are evenly spaced. The side wall of the mold placement concave plate is provided with a number of cleaning openings that are evenly spaced.

[0010] Preferably, an enlarged nozzle is provided on the left side of the inner wall of the cleaning tank near the middle, an alkaline degreasing solution supply tank is bolted to the left outer wall of the grinding and cleaning box near the top, and a deionized water supply tank is bolted to the left outer wall of the grinding and cleaning box near the bottom. The right ends of the alkaline degreasing solution supply tank and the right ends of the deionized water supply tank are both connected to the enlarged nozzle via pump pipelines.

[0011] Preferably, an enlarged nozzle two is provided on the right side of the inner wall of the cleaning tank near the middle, a citric acid and oxalic acid solution supply tank is bolted to the right outer wall of the grinding and cleaning box near the top, and an anhydrous ethanol supply tank is bolted to the right outer wall of the grinding and cleaning box near the bottom. The right ends of the citric acid and oxalic acid solution supply tank and the right ends of the anhydrous ethanol supply tank are both connected to the enlarged nozzle two via pump pipelines.

[0012] Preferably, a dual-zone ultrasonic cleaner is provided at the middle of the bottom of the cleaning tank, and a waste liquid and debris extraction pump is bolted to the outer wall of the bottom of the grinding and cleaning box. Four debris and waste liquid discharge outlets are provided at the rear end of the bottom of the inner wall of the cleaning tank and are symmetrically distributed.

[0013] (III) Beneficial Effects

[0014] This invention provides a convenient grinding and cleaning device for iron-silicon-aluminum soft magnetic molds. It features the following:

[0015] Beneficial effects:

[0016] (1) This convenient grinding and cleaning device for iron-silicon-aluminum soft magnetic molds employs a four-step synergistic cleaning process. The alkaline degreasing solution supply tank and the deionized water supply tank achieve degreasing and water rinsing through a larger nozzle on the left. The citric acid and oxalic acid solution supply tank and the anhydrous ethanol supply tank achieve neutralization and dehydration through a larger nozzle on the right. Combined with the dual-zone ultrasonic cleaner at the bottom, this forms a composite cleaning mode of chemical cleaning plus physical vibration, overcoming the limitations of traditional single cleaning methods. Especially for iron-silicon-aluminum soft magnetic materials, which are prone to oxidation and have difficult-to-remove surface residues, this device can thoroughly remove oil, metal debris, and oxides, ensuring the mold surface... The surface cleanliness meets production standards. The movable placement rack, through the cooperation of the locking bottom block and the bottom rail, enables quick loading and unloading of molds for cleaning. The layered design of the mold placement concave plate can accommodate multiple sets of molds at the top, middle and bottom. The bottom cleaning groove and side wall cleaning openings allow the cleaning fluid to penetrate into the mold cavity and gaps in all directions. The combination of waste liquid and debris extraction pump and symmetrical debris and waste liquid discharge outlets can discharge cleaning waste liquid in real time to avoid secondary pollution and reduce the tedious steps of manual cleaning. The integrated design shortens the traditional time-consuming manual cleaning process to automated assembly line operation, improving the efficiency of single batch processing.

[0017] (2) The convenient grinding and cleaning device for this iron-silicon-aluminum soft magnetic mold has further optimized the structure of the drying component. The drying nitrogen purging system adopts a combination of five sets of angle adjustment shafts and drying nitrogen purging nozzles. The rotating shaft is driven by the driver to achieve purging without dead angles. The design of the counterweight ensures the stability of the rotation process and avoids the vibration of the device caused by centrifugal force. The equal spacing and adjustability of the angle adjustment shafts allow for purging at different angles for the complex curved surfaces of molds of different specifications, completely eliminating residual liquid and preventing the mold from rusting or corroding. Compared with traditional natural air drying or manual wiping, it shortens the cleaning and drying time and avoids secondary pollution that may be introduced by manual operation. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the present utility model;

[0019] Figure 2 This is a diagram showing the internal structure distribution of the cleaning pool area of ​​this utility model;

[0020] Figure 3 This is an enlarged view of the movable placement rack area of ​​this utility model.

[0021] Figure 4This is a schematic diagram showing the adjustment of the setting rod towards the left end after the rotating shaft of this utility model is rotated.

[0022] In the diagram: 1. Grinding and cleaning box; 2. Cleaning tank; 3. Driver; 4. Rotating shaft; 5. Counterweight; 6. Setting rod; 7. Angle adjustment shaft; 8. Drying nitrogen inlet seat; 9. Drying nitrogen purging nozzle; 10. Liftable placement rack; 11. Locking bottom block; 12. Tank bottom convex rail; 13. Mold placement concave plate; 14. Cleaning groove; 15. Cleaning opening; 16. Enlarged nozzle one; 17. Alkaline degreasing solution supply tank; 18. Deionized water supply tank; 19. Enlarged nozzle two; 20. Citric acid and oxalic acid solution supply tank; 21. Anhydrous ethanol supply tank; 22. Dual-zone ultrasonic cleaner; 23. Waste liquid and debris extraction pump; 24. Debris and waste liquid discharge port. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides a technical solution: a convenient grinding and cleaning device for iron-silicon-aluminum soft magnetic molds, including a grinding and cleaning tank 1, an alkaline degreasing liquid supply tank 17, a deionized water supply tank 18, a citric acid and oxalic acid solution supply tank 20, and an anhydrous ethanol supply tank 21. A rectangular cleaning pool 2 is arranged around the inner wall of the grinding and cleaning tank 1. The purpose of this convenient grinding and cleaning device for iron-silicon-aluminum soft magnetic molds is to clean the mold after grinding. Through the collaborative work of multiple modules, the process from cleaning to drying of the mold is realized. The working principle can be divided into five stages: pretreatment, chemical cleaning, physical vibration, waste liquid treatment, and drying. A driver 3 is bolted to the top of the grinding and cleaning tank 1 near the left rear end. A rotating shaft 4 is connected to the top of the driver 3 via a coupling. A counterweight 5 is provided on the left end of the rotating shaft 4 and is bolted to it. A setting rod 6 is bolted to the right end of the rotating shaft 4. The front end of the setting rod 6 is equipped with five angle adjustment shafts 7 evenly spaced. Each angle adjustment shaft 7 has a dry nitrogen inlet seat 8 at its front end, and a dry nitrogen purging nozzle 9 is located at the bottom of each dry nitrogen inlet seat 8. This multi-angle purging design allows the driver 3 to drive the rotating shaft 4 to rotate, which in turn drives the five angle adjustment shafts 7 on the setting rod 6 to rotate synchronously. The dry nitrogen purging nozzle 9 at the front end of each angle adjustment shaft 7 can be adjusted to achieve purging without dead angles. When the cleaning tank 2 is placed in the movable placement frame 10, the area of ​​the setting rod 6 at the top rotates to the left end, exposing the top of the cleaning tank 2. This does not affect the loading and unloading of the cleaning mold. The counterweight 5 balances the centrifugal force during rotation, ensuring the stability of the device and preventing vibration from affecting the mold inside the cleaning tank 2. This highly efficient dehydration is achieved by blowing dry nitrogen at high speed onto the mold surface through the nozzles, quickly evaporating residual liquid and preventing the mold from rusting or corroding. This method is significantly more efficient than traditional natural air drying.

[0025] A movable placement frame 10 is provided on the inner wall of the cleaning pool 2. A locking bottom block 11 is welded to the bottom left and bottom right ends of the movable placement frame 10. Pool bottom protrusion rails 12 are bolted to both ends of the inner wall of the cleaning pool 2. The top of the pool bottom protrusion rail 12 is attached to the locking bottom block 11. Mold pretreatment and positioning, mold loading, and the operator use the sliding cooperation between the locking bottom block 11 of the movable placement frame 10 and the pool bottom protrusion rail 12.

[0026] The top, middle, and bottom of the movable placement rack 10 are each equipped with a mold placement concave plate 13. The bottom of the mold placement concave plate 13 has several cleaning grooves 14 evenly spaced around its perimeter, and the sidewalls of the mold placement concave plate 13 have several cleaning openings 15 evenly spaced around its perimeter. The mold is placed in the mold placement concave plate 13. The concave plate has a layered design, with the top, middle, and bottom supporting simultaneous cleaning of multiple molds. The bottom cleaning grooves 14 and the sidewall cleaning openings 15 ensure that the cleaning fluid penetrates into the mold cavity and tiny gaps for positioning and fixation. The movable placement rack 10 is precisely positioned in the center area of ​​the cleaning tank 2 by the limiting action of the bottom protruding rail 12, facilitating subsequent cleaning and drying operations.

[0027] An enlarged nozzle 16 is installed on the left side of the inner wall of the cleaning tank 2 near the middle. An alkaline degreasing solution supply tank 17 is bolted to the left outer wall of the polishing and cleaning box 1 near the top. A deionized water supply tank 18 is bolted to the left outer wall of the polishing and cleaning box 1 near the bottom. The right ends of both the alkaline degreasing solution supply tank 17 and the deionized water supply tank 18 are connected to the enlarged nozzle 16 via pump pipelines. In the four-step chemical cleaning process, during the alkaline degreasing stage, the alkaline degreasing solution supply tank 17 delivers alkaline solution to the enlarged nozzle 16 through the pump pipeline into the cleaning tank 2, filling the mold surface and performing a saponification reaction on the oil stains on the mold surface. The deionized water supply tank 18 then provides a high-pressure water flow to rinse away the residual liquid after degreasing, avoiding the residue of alkaline substances.

[0028] An enlarged nozzle 219 is installed on the right side of the inner wall of the cleaning tank 2 near the middle. A citric acid and oxalic acid solution supply tank 20 is bolted to the outer right side of the grinding and cleaning box 1 near the top. An anhydrous ethanol supply tank 21 is bolted to the outer right side of the grinding and cleaning box 1 near the bottom. The right ends of the citric acid and oxalic acid solution supply tank 20 and the anhydrous ethanol supply tank 21 are both connected to the enlarged nozzle 219 via pump pipelines. During the acid neutralization stage, the citric acid and oxalic acid solution supply tank 20 sprays acidic solution into the cleaning tank 2 through the enlarged nozzle 219, filling the surface of the abrasive, neutralizing the alkaline residue on the mold surface and removing oxides. The anhydrous ethanol supply tank 21 then sprays out ethanol, using its high volatility to accelerate water evaporation and reduce subsequent drying time.

[0029] A dual-zone ultrasonic cleaner 22 is installed at the bottom center of the cleaning tank 2. It uses physical vibration and ultrasonic enhancement for cleaning. The dual-zone ultrasonic cleaner 22 generates high-frequency vibration at the bottom of the cleaning tank 2. Through cavitation effect, it further removes stubborn stains from the surface and crevices of the mold. The dual-zone design allows for adjustment of vibration intensity for different areas to adapt to complex mold structures. A waste liquid and debris extraction pump 23 is bolted to the bottom outer wall of the grinding and cleaning box 1. Four debris and waste liquid discharge outlets 24 are set at the rear end of the bottom of the inner wall of the cleaning tank 2 and are symmetrically distributed. Waste liquid is treated in real time and debris and waste liquid are discharged. The waste liquid and debris extraction pump 23 continuously extracts waste liquid and metal debris from the bottom of the cleaning tank 2 through the four symmetrical debris and waste liquid discharge outlets 24 to prevent debris deposition and secondary pollution.

[0030] Working principle: This iron-silicon-aluminum soft magnetic mold uses a convenient grinding and cleaning device. Its purpose is to clean the mold after grinding. Through the collaborative work of multiple modules, the process from cleaning to drying of the mold is realized. The working principle can be divided into five stages: pretreatment, chemical cleaning, physical vibration, waste liquid treatment and drying. In the first stage, mold pretreatment and positioning, mold loading, the operator places the mold in the mold placement concave plate 13 by sliding the locking bottom block 11 of the movable placement frame 10 with the bottom convex rail 12. The concave plate has a layered design, with the top, middle and bottom supporting the simultaneous cleaning of multiple sets of molds. The bottom cleaning groove 14 and the side wall cleaning opening 15 ensure that the cleaning liquid penetrates into the mold cavity and fine gaps. Positioning and fixing, the movable placement frame 10 is accurately positioned in the center area of ​​the cleaning tank 2 by the limiting effect of the bottom convex rail 12, which facilitates subsequent cleaning and drying operations.

[0031] The second stage involves a four-step chemical cleaning process. In the alkaline degreasing stage, the alkaline degreasing solution supply tank 17 delivers alkaline solution to the cleaning tank 2 through the pump pipeline to the enlarged nozzle 16, filling the mold surface and performing a saponification reaction on the oil stains on the mold surface. The deionized water supply tank 18 then provides a high-pressure water flow to rinse away the residual liquid after degreasing, avoiding alkaline residue. In the acid neutralization stage, the citric acid and oxalic acid solution supply tank 20 sprays acidic solution into the cleaning tank 2 through the enlarged nozzle 29, filling the mold surface, neutralizing the alkaline residue on the mold surface and removing oxides. The anhydrous ethanol supply tank 21 then sprays out ethanol, utilizing its high volatility to accelerate water evaporation and reduce subsequent drying time.

[0032] The third step involves physical vibration and ultrasonic enhanced cleaning. The dual-zone ultrasonic cleaner 22 generates high-frequency vibration at the bottom of the cleaning tank 2, which further removes stubborn stains from the surface and crevices of the mold through cavitation effect. The dual-zone design allows for adjustment of vibration intensity for different areas, adapting to complex mold structures.

[0033] In the fourth stage, waste liquid is treated in real time and debris is discharged. The waste liquid and debris extraction pump 23 continuously extracts waste liquid and metal debris from the bottom of the cleaning tank 2 through four symmetrical debris and waste liquid discharge ports 24 to prevent debris from settling and causing secondary pollution.

[0034] The fifth stage is the dry nitrogen purging system, which features a multi-angle purging design. The driver 3 drives the rotating shaft 4 to rotate, which in turn drives the five angle adjustment shafts 7 on the setting rod 6 to rotate synchronously. The dry nitrogen purging nozzles 9 at the front end of each angle adjustment shaft 7 can be adjusted to achieve purging without dead angles. When the cleaning tank 2 is placed into the movable placement rack 10, the area of ​​the setting rod 6 at the top rotates to the left end area, exposing the top of the cleaning tank 2. This does not affect the loading and unloading of the cleaning mold. The counterweight 5 balances the centrifugal force during rotation, ensuring the stability of the device and preventing vibration from affecting the mold in the cleaning tank 2. It achieves efficient dehydration. The dry nitrogen is blown onto the mold surface at high speed through the nozzles, quickly evaporating the residual liquid and preventing the mold from rusting or corroding. This is significantly more efficient than traditional natural air drying.

[0035] The composite cleaning technology works synergistically, combining the alkaline degreasing and acidic neutralization of chemical cleaning with the ultrasonic oscillation of physical cleaning. This breaks through the limitations of a single cleaning method. The ultrasonic cavitation effect can penetrate deep into the blind holes of the mold, while the chemical solution can dissolve oil stains and oxides. The two work together to improve the cleaning effect. The dynamic drying system and the rotary blowing design enhance the airflow diffusion through centrifugal force. Combined with the directional blowing of the angle adjustment shaft 7, it ensures the drying effect on complex curved surfaces, such as deep cavities and narrow gaps.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A convenient grinding and cleaning device for iron-silicon-aluminum soft magnetic molds, characterized in that: Including polishing cleaning box (1), alkaline degreasing liquid supply tank (17), deionized water supply tank (18), citric acid oxalic acid solution supply tank (20) and anhydrous ethanol supply tank (21), the long rectangle cleaning pool (2) is arranged on the inner wall of polishing cleaning box (1), the driver (3) is connected by bolt on the top of polishing cleaning box (1) near left rear end, the driving shaft (4) is connected through coupling on the top of driver (3), the counterweight (5) is arranged on the left end of driving shaft (4) and is connected by bolt, the setting rod (6) is connected by bolt on the right end of driving shaft (4), five angle adjustment shafts (7) are arranged on the front end of setting rod (6) and are distributed at equal intervals, the dry nitrogen access seat (8) is arranged on the front end of angle adjustment shaft (7), the dry nitrogen purging spray head (9) is arranged on the bottom end of dry nitrogen access seat (8).

2. The convenient polishing and cleaning device for soft magnetic mold of iron-silicon-aluminum according to claim 1, characterized in that: The hoistable rack (10) is arranged on the inner wall of cleaning pool (2), the engaging bottom block (11) is welded on the left end bottom of hoistable rack (10), the bottom convex rail (12) is connected by bolt on the left and right ends of the inner wall of cleaning pool (2), and the bottom convex rail (12) top is matched with engaging bottom block (11).

3. The convenient polishing and cleaning device for soft magnetic mold of Fe-Si-Al according to claim 2, characterized in that: The mold placing recessed disc (13) is arranged on the top end of hoistable rack (10), the middle end of hoistable rack (10) and the bottom end of hoistable rack (10), a plurality of cleaning grooves (14) are arranged on the bottom end of mold placing recessed disc (13) and are distributed at equal intervals, and a plurality of cleaning holes (15) are arranged on the side wall of mold placing recessed disc (13) and are distributed at equal intervals.

4. The convenient polishing and cleaning device for soft magnetic mold of Fe-Si-Al according to claim 1, characterized in that: The enlarged spray head one (16) is arranged on the left side near the middle end of the inner wall of cleaning pool (2), the alkaline degreasing liquid supply tank (17) is connected by bolt on the left side outer wall of polishing cleaning box (1) near the top end, the deionized water supply tank (18) is connected by bolt on the left side outer wall of polishing cleaning box (1) near the bottom end, and the right end of alkaline degreasing liquid supply tank (17) and the right end of deionized water supply tank (18) are connected with enlarged spray head one (16) through pump pipeline.

5. The convenient polishing and cleaning device for soft magnetic mold of Fe-Si-Al according to claim 1, characterized in that: The enlarged spray head two (19) is arranged on the right side near the middle end of the inner wall of cleaning pool (2), the citric acid oxalic acid solution supply tank (20) is connected by bolt on the right side outer wall of polishing cleaning box (1) near the top end, the anhydrous ethanol supply tank (21) is connected by bolt on the right side outer wall of polishing cleaning box (1) near the bottom end, and the right end of citric acid oxalic acid solution supply tank (20) and the right end of anhydrous ethanol supply tank (21) are connected with enlarged spray head two (19) through pump pipeline.

6. The convenient polishing and cleaning device for soft-magnetic mold of Fe-Si-Al according to claim 1, characterized in that: The double-zone ultrasonic cleaner (22) is arranged on the bottom middle end of cleaning pool (2), the waste liquid and debris extraction pump (23) is connected by bolt on the bottom outer wall of polishing cleaning box (1), and the four debris waste liquid discharge outlets (24) are arranged on the bottom rear end of the inner wall of cleaning pool (2) and are distributed symmetrically.

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