Ultrasonic-assisted micro-hole cleaning device for acoustic precision structural member

Abstract

The invention relates to the technical field of ultrasonic cleaning devices, in particular to an ultrasonic-assisted acoustic precision structural member micro-hole cleaning device which comprises a cleaning bin, an ultrasonic generator is arranged on the cleaning bin through a mounting frame, an ultrasonic pipe is connected to the ultrasonic generator, and cleaning mechanisms distributed in a matrix mode are arranged on the ultrasonic pipe. The cleaning mechanism comprises an ultrasonic branch pipe rotationally connected to the ultrasonic pipe, and a grinding ball is rotationally connected to the ultrasonic branch pipe. According to the invention, the flowability of the abrasive fluid is enhanced through shock waves and microjets generated by a cavitation effect triggered by ultrasonic waves, so that burrs and attachments can be efficiently removed when abrasive particles are in contact with dirt, the cleaning time is shortened, the cleaning process is more efficient, and the method is particularly suitable for complex and narrow pore channels. And meanwhile, the grinding balls rotate under the flowing action of bearing the abrasive fluid, the incident angle and the reflection path of the sound waves are changed, and therefore propagation of the sound waves in the abrasive fluid is optimized.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic cleaning devices, and in particular to an ultrasonic-assisted cleaning device for micro-holes of acoustic precision structural parts. Background Art

[0002] In modern manufacturing, the continuous advancement of science and technology has placed higher demands on the precision and surface quality of acoustic precision components. This is particularly true for the machining of tiny holes in these components, which has become a technical challenge. These holes are often used for assembly, fluid passages, or acoustic applications, and their performance directly impacts the overall functionality and reliability of the product. The presence of burrs or tiny residue inside or outside the holes not only reduces product quality but can also cause product failure during use.

[0003] Existing methods for cleaning tiny holes on acoustic precision structural parts are generally carried out using abrasive fluids. Abrasive fluids are usually composed of a liquid medium (such as water, solvents, etc.) and abrasive particles (such as sand, ceramic particles, etc.) suspended therein; these abrasive particles are transported to the tiny holes that need to be cleaned through the flow of the liquid medium. The flowing abrasive fluid causes the abrasive particles to exert impact and cutting forces on the dirt or burrs, and the dirt particles or burrs are struck and ground away through friction and impact force.

[0004] After searching, the prior art discloses a patent with the number CN201910712652.0, and the patent name is a clean abrasive jet device that facilitates uniform mixing of abrasives, which specifically includes a target fixing seat, an abrasive mixing mechanism and an X-axis translation assembly. A slide rail is welded to the right outer wall of the target fixing seat, and a slide rod is slidably connected to the outer side of the slide rail. An adjusting screw is threadedly connected to the right side of the slide rod, and a Y-axis lifting assembly is installed on the upper end of the slide rod. The abrasive mixing mechanism is installed at the lower right corner of the target fixing seat.

[0005] In the above scheme, although the abrasive liquid is mainly pre-configured by setting up an abrasive mixing mechanism, and when the first motor interacts with the stirring rod, it can not only accelerate the mixing of the abrasive liquid in the mixing box, but also make the abrasive liquid mixed more evenly, which is beneficial to improving the uniformity of the abrasive jet, thereby maintaining the stability of the abrasive jet cutting ability, and then maintaining the flatness of the incision.

[0006] However, with traditional cleaning methods, due to the complex pore shapes and depths of acoustic precision components, the fluid may not fully penetrate deep into the pores or reach complex blind spots, resulting in residual dirt and burrs. Furthermore, abrasive fluids in traditional methods are generally driven by pressure and tend to settle under static or low-velocity conditions, resulting in higher abrasive density in some areas and lower density in others. This leads to uneven distribution of the abrasive fluid within the acoustic precision component, resulting in uneven grinding results.

[0007] Therefore, an ultrasonic-assisted acoustic precision structural component micro-hole cleaning device is proposed to solve the above-mentioned problems. Summary of the Invention

[0008] Technical problems solved

[0009] In response to the above-mentioned shortcomings of the prior art, the present invention provides an ultrasonic-assisted micro-hole cleaning device for acoustic precision structural parts, which can solve the problem in the prior art that abrasive fluid cannot enter and be evenly distributed in the complex hole-shaped grooves in acoustic precision structural parts.

[0010] Technical Solution

[0011] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0012] The present invention provides an ultrasonic-assisted acoustic precision structural part micro-hole cleaning device, comprising a cleaning chamber, an ultrasonic generator being provided on the cleaning chamber via a mounting frame, an ultrasonic tube being connected to the ultrasonic generator, and a matrix-distributed cleaning mechanism being provided on the ultrasonic tube. The cleaning mechanism is characterized in that the cleaning mechanism comprises an ultrasonic branch pipe rotatably connected to the ultrasonic tube, a grinding ball being rotatably connected to the ultrasonic branch pipe, the outer portion of the grinding ball protruding from the surface of the ultrasonic branch pipe, and a through hole being provided on the surface of the grinding ball inserted into the ultrasonic branch pipe. The sound waves generated by the ultrasonic generator enter the grinding ball and are focused to the central area to generate enhanced impact force and microjets acting on the abrasive fluid. The surface of the grinding ball is provided with a convex plate A, and the convex plate A drives the grinding ball to rotate under the flow of the abrasive fluid, and changes the incident angle of the sound wave entering the grinding ball and the reflection angle and reflection path of the sound wave in the grinding ball.

[0013] Furthermore, the convex plate A is configured to be cross-shaped.

[0014] Furthermore, the surface of the ultrasonic branch pipe is connected with convex plates B distributed in a circumferential manner.

[0015] Furthermore, the grinding balls are arranged in multiple groups and distributed in a spiral shape on the surface of the ultrasonic branch pipe.

[0016] Furthermore, the interior of the ultrasonic branch pipe is also connected to a vertical pipe, the upper end of the vertical pipe passes through the ultrasonic tube and is connected to a rotary joint, the rotary joint is connected to the air duct installed on the fan, and a nozzle is provided on the vertical pipe, and the nozzle passes through the through hole and is inserted into the interior of the grinding ball, and the surface of the grinding ball is provided with evenly distributed nozzle holes.

[0017] Furthermore, a fixed rod is connected to the inner wall of the grinding ball, and a guide plate is rotatably connected to the fixed rod. The guide plate is arranged in a Y shape. Two groups of baffles are connected to the inner wall of the grinding ball. The two groups of baffles are distributed on the upper and lower sides of the guide plate, and two groups of air ducts are formed between the guide plate and the baffle.

[0018] Furthermore, the front side of the guide plate is tangent to the inner wall of the grinding ball, and the rear side of the guide plate is connected to a counterweight block.

[0019] Furthermore, the spray hole is configured as a vortex-shaped hole.

[0020] Beneficial effects

[0021] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0022] The present invention utilizes sound waves generated by an ultrasonic generator, which triggers cavitation and produces shock waves and microjets. This enhances the fluidity of the abrasive fluid, enabling the abrasive particles to efficiently remove burrs and debris upon contact, reducing cleaning time and making the cleaning process more efficient. This is particularly suitable for complex and narrow passages. Simultaneously, the grinding balls rotate under the influence of the abrasive fluid, changing the incident angle and reflection path of the sound waves, thereby optimizing their propagation within the abrasive fluid. This dynamic design ensures that the sound waves cover a wider area, particularly within complex, microscopic holes.

[0023] And through multiple groups of spirally distributed grinding balls, the abrasive fluid is forced into the generated spiral flow field, which helps to improve the mixing of the abrasive fluid and the uniformity of the abrasive distribution; the integrated air duct system and rotating nozzle can further optimize the fluidity and distribution of the abrasive fluid, and is suitable for various production environments BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0025] Figure 1 This is a schematic structural diagram of a cleaning mechanism in an embodiment of the present invention;

[0026] Figure 2 Schematic diagram of the cleaning device structure in an embodiment of the present invention;

[0027] Figure 3 A schematic cross-sectional view of the internal structure of the cleaning mechanism in an embodiment of the present invention;

[0028] Figure 4 Schematic diagram of the internal structure of a grinding ball in an embodiment of the present invention;

[0029] Figure 5 Schematic diagram of the inner side of the grinding ball structure in an embodiment of the present invention;

[0030] Figure 6 Schematic diagram of the external structure of the grinding ball in an embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the cross-section of the grinding ball structure in an embodiment of the present invention.

[0032] The numbers in the figure represent: 1. Cleaning chamber; 2. Mounting frame; 3. Ultrasonic generator; 4. Ultrasonic tube; 5. Cleaning mechanism; 501. Ultrasonic branch pipe; 502. Grinding ball; 503. Through hole; 504. Protruding plate A; 505. Protruding plate B; 506. Vertical pipe; 507. Nozzle; 508. Rotary joint; 509. Nozzle hole; 510. Fixed rod; 511. Guide plate; 512. Counterweight; 513. Baffle; 514. Air duct; 6. Fixing fixture; 7. Air duct. DETAILED DESCRIPTION

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0034] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0037] The present invention will be further described below with reference to the embodiments.

[0038] Example:

[0039] Please refer to the attached Figure 1-7 This invention proposes an ultrasonic-assisted micro-hole cleaning device for acoustic precision structural parts, comprising a cleaning chamber 1 for filling an abrasive fluid. Inside the cleaning chamber 1 are fixed fixtures 6 arranged in a matrix for clamping and fixing acoustic precision structural parts. Figure 2 The cleaning chamber 1 shown in the figure is in a state where the upper cover is open. When in use, the acoustic precision structure is mounted on the fixing fixture 6, and the top of the cleaning chamber 1 is sealed, so that the abrasive fluid, under pressure, will move relative to the surface of the acoustic precision structure inside the cleaning chamber 1, producing microscopic cutting, grinding and polishing effects.

[0040] The difference is that an ultrasonic generator 3 is mounted on the cleaning chamber 1 via a mounting frame 2. An ultrasonic tube 4 is mounted at the lower end of the ultrasonic generator 3. A cleaning mechanism 5 is mounted on the ultrasonic tube 4 in a matrix arrangement. Each set of fixtures 6 is mounted on a corresponding set of fixtures 6. When an acoustic precision component needs to be cleaned, the component is placed on the fixtures 6 for clamping and securing. The ultrasonic generator 3 is then raised and lowered on the mounting frame 2, allowing the cleaning mechanism 5 to penetrate the abrasive fluid in the tiny pores on the surface of the component.

[0041] When cleaning an acoustic precision component, the ultrasonic wave generated by the ultrasonic generator 3 is transmitted through the ultrasonic tube 4 to the cleaning mechanism 5. This wave is then transferred through the cleaning mechanism 5 to the abrasive fluid in the tiny pores on the surface of the acoustic precision component. During this process, the cavitation bubbles generated by the ultrasonic wave produce powerful shock waves and microjets when they collapse. These microjets and shock waves propel the abrasive particles, giving them higher speeds and impact energy. This allows the abrasive particles to cut and grind more effectively when in contact with burrs, accelerating burr removal and stain cleaning.

[0042] At the same time, the vibration of ultrasound can make the viscous abrasive fluid more easily penetrate into complex and narrow geometric structures, such as the bottom of the acoustic channel inside the acoustic precision structure, cross holes, deep grooves and other areas where burrs are prone to occur; this allows the abrasive to contact hidden burrs and stains more directly, avoiding the possibility that the abrasive fluid may only stay near the hole.

[0043] Specifically, cleaning mechanism 5 includes an ultrasonic branch tube 501 connected to ultrasonic tube 4. Ultrasonic branch tube 501 communicates with the interior of ultrasonic tube 4, allowing sound waves generated by ultrasonic generator 3 to enter ultrasonic branch tube 501 through ultrasonic tube 4 and subsequently act on the abrasive fluid coated on the surface of ultrasonic branch tube 501. Ultrasonic branch tube 501 has an opening on its surface, into which a grinding ball 502 is rotatably connected, with the exterior of grinding ball 502 protruding from the surface of ultrasonic branch tube 501. Grinding ball 502 is hollow, and one side of grinding ball 502, inserted into ultrasonic branch tube 501, is provided with a through-hole 503, allowing sound waves within ultrasonic branch tube 501 to pass through through-hole 503 and into grinding ball 502.

[0044] The hemispherical protrusion on the outside of grinding ball 502, inserted into the abrasive fluid, acts like a lens, focusing sound waves into the center of the protrusion. This increases the sound wave intensity in this area, generating stronger impact force and micro-jets. This, in turn, allows the abrasive fluid to achieve greater impact force when impacting the inner wall of the acoustic precision component. This enhanced impact force improves the abrasive fluid's polishing effect on the surface of the acoustic precision component, making burr and residue removal more effective. At the same time, the sound waves partially reflect and interfere within grinding ball 502, creating a complex sound wave field. This disperses the sound waves more evenly within grinding ball 502, helping to evenly distribute the abrasive fluid within the tiny pores and grooves of the acoustic precision component, ensuring effective polishing of every corner.

[0045] The outer surface of the grinding ball 502 is connected to a cross-shaped raised plate A504. When the grinding ball 502 is acted upon by the sound waves, it improves the fluidity of the abrasive fluid, making it easier for it to flow into and fill the complex geometry of the acoustic precision structural component, thereby improving overall processing efficiency and effectiveness.

[0046] At the same time, during the flow of the abrasive fluid, the convex plate A504 will push the grinding ball 502 to rotate on the ultrasonic branch tube 501, which means that the position and posture of the grinding ball 502 relative to the ultrasonic branch tube 501 are dynamically changing. This will cause the incident angle, reflection angle and reflection path of the sound wave to continuously change when the sound wave propagates through the through hole 503 in the ultrasonic branch tube 501 to the grinding ball 502, making the direction of the reflected wave more complex and diffuse. This can continuously bring the fluid area more prone to cavitation effect to an area with high sound intensity, maintain or enhance the intensity of the cavitation effect, change the fluid boundary layer, and make it easier for sound energy to penetrate deeper areas.

[0047] This optimizes the mixing state, abrasive distribution and flow characteristics within the abrasive fluid, thereby indirectly or directly enhancing the effectiveness, uniformity and coverage of the acoustic cavitation effect and abrasive cutting action, ultimately improving the efficiency and effectiveness of the entire ultrasonic-assisted abrasive fluid deburring and cleaning process; it is particularly suitable for precision workpieces that require processing of complex shapes or internal structures.

[0048] The ultrasonic branch pipe 501 is also rotatably connected to the ultrasonic tube 4. The surface of the ultrasonic branch pipe 501 is connected with circumferentially distributed convex plates B505, so that the abrasive fluid will push the ultrasonic branch pipe 501 to rotate on the ultrasonic tube 4 during the flow process.

[0049] The resulting wider and more powerful fluid agitation can more effectively break down any possible fluid stratification or abrasive aggregation, achieving a highly uniform distribution of abrasive particles throughout the fluid volume. Combined with the ultrasonic cavitation effect and the abrasive cutting action, precise deburring and cleaning of internal structures is achieved.

[0050] The grinding balls 502 are arranged in multiple groups and distributed in a spiral shape on the surface of the ultrasonic branch pipe 501. During the rotation of the ultrasonic branch pipe 501, the spiral grinding balls 502 are inserted into the fluid, forcing the fluid to generate a spiral flow field moving along the axis of the pipe. At the same time, the rotation of the grinding balls 502 continues to provide local agitation, thereby generating stronger local turbulence and shear, making the reflection, refraction and interference of the sound waves more complex and dynamic; this ensures that the abrasive particles are highly uniformly and continuously distributed throughout the fluid, which can ensure that the interior of the acoustic precision structure is comprehensively and evenly treated, minimizing the treatment blind spots.

[0051] It is worth noting that the ultrasonic branch pipe 501 is also connected to a vertical pipe 506. The upper end of the vertical pipe 506 passes through the ultrasonic tube 4 and is connected to a rotary joint 508. The vertical pipe 506 is connected to the air duct 7 mounted on the fan via the rotary joint 508. Spiral nozzles 507 are also installed on the vertical pipe 506. Each set of nozzles 507 corresponds to a set of grinding balls 502 mounted on the ultrasonic branch pipe 501. The nozzles 507 are inserted into the grinding balls 502 through the through holes 503.

[0052] During operation of the cleaning mechanism 5, the fan is simultaneously activated, generating wind that enters the interior of the grinding balls 502 through the air duct 7, vertical pipe 506, and nozzle 507. The flow of the abrasive fluid generates heat due to friction, raising the temperature of the processed area on the inner wall of the acoustic precision component. This temperature increase causes thermal expansion of the material. For delicate acoustic precision components, even minor dimensional changes can alter the resonant frequency, acoustic impedance, cavity volume, and other parameters, thereby affecting acoustic performance, such as frequency response, sensitivity, and distortion.

[0053] Cooling air is blown into the grinding balls 502 through the air duct 7, cooling the exterior of the grinding balls 502 and preventing frictional heat from affecting the acoustic precision components. Furthermore, the grinding balls 502 are provided with evenly distributed nozzle holes 509, through which air is discharged from the grinding balls 502, further improving cooling efficiency.

[0054] Furthermore, the airflow ejected from the grinding ball 502 directly impacts and stirs the surrounding abrasive fluid, which can supplement the stirring effect brought about by the acoustic vibration and make the fluid mixing more complete. It acts as an additional driving force to push the abrasive fluid to flow faster, especially when it is necessary to force the abrasive fluid into complex geometric shapes or remote areas, thereby helping to improve the fluidity of the abrasive fluid.

[0055] It should be noted that a fixed rod 510 is connected to the inner wall of the grinding ball 502. A guide plate 511 is rotatably connected to the fixed rod 510. The guide plate 511 is arranged in a Y shape. Furthermore, two sets of baffles 513 are connected to the inner wall of the grinding ball 502. The two sets of baffles 513 are located above and below the guide plate 511, forming two sets of air ducts 514 between the guide plates 511 and the baffles 513.

[0056] When air enters the grinding balls 502 from nozzle 507, it is split into two by deflector plate 511. The air then enters two sets of air ducts 514 and is discharged through nozzle holes 509 in different directions. This dual-outlet design creates a complex flow pattern for the abrasive fluid around the grinding balls 502, helping to better disperse the abrasive particles and improve processing efficiency.

[0057] The front side of the guide plate 511 is tangential to the inner wall of the grinding ball 502, and a counterweight 512 is connected to the back side of the guide plate 511. When the grinding ball 502 is pushed and rotated by the flow of the abrasive fluid, the guide plate 511 remains horizontally distributed under the gravity of the counterweight 512. As the grinding ball 502 rotates, the distance between the baffle 513 and the guide plate 511 changes, adjusting the size of the air duct 514. As the outer diameter of the air duct 514 decreases, the wind speed within the air duct 514 increases. Higher wind speeds mean stronger airflow, which intensifies the disturbance within the abrasive fluid, dispersing the abrasive particles more evenly and quickly, potentially resulting in more efficient mixing.

[0058] During the adjustment process, the sizes of the two sets of air ducts 514 are adjusted in opposite directions, further reducing the wind speed within the other set of air ducts 514. After the airflows in the two sets of air ducts 514 are discharged through the nozzles 509, the difference in wind speed between the two airflows creates an asymmetric flow pattern around the grinding balls 502. The high-speed outlet generates stronger localized agitation and shear forces, while the low-speed outlet produces relatively weaker flow. This asymmetry alters the overall flow path and velocity distribution of the abrasive fluid, making it easier to guide the abrasive fluid to certain hard-to-reach corners or specific areas.

[0059] Furthermore, the nozzle hole 509 is configured as a vortex-shaped hole. When the airflow is discharged through the nozzle hole 509, it is forced to impart a rotational motion, thereby driving the sphere to produce a stronger and more stable rotation, and making the discharged airflow itself have a rotational characteristic, which can more effectively stir the abrasive fluid and promote the uniform distribution of abrasive particles.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Ultrasonic-assisted acoustic precision structural parts micro-hole cleaning device, characterized in that: include: Cleaning chamber (1); An ultrasonic generator (3), the ultrasonic generator (3) being mounted on the cleaning chamber (1) via a mounting frame (2); A cleaning mechanism (5), wherein the ultrasonic generator (3) is connected to an ultrasonic tube (4), and the cleaning mechanism (5) is distributed in a matrix on the ultrasonic tube (4); The cleaning mechanism (5) comprises an ultrasonic branch pipe (501) rotatably connected to the ultrasonic tube (4); a grinding ball (502) is rotatably connected to the ultrasonic branch pipe (501); the outer portion of the grinding ball (502) protrudes from the surface of the ultrasonic branch pipe (501); the surface of the grinding ball (502) inserted into the ultrasonic branch pipe (501) is provided with a through hole (503); the sound waves generated by the ultrasonic generator (3) enter the grinding ball (502) and are focused to the central area to generate enhanced impact force and micro-jets acting on the abrasive fluid; the surface of the grinding ball (502) is provided with a convex plate A (504); the convex plate A (504) drives the grinding ball (502) to rotate under the flow of the abrasive fluid, and changes the incident angle of the sound wave entering the grinding ball (502) and the reflection angle and reflection path of the sound wave in the grinding ball (502).

2. The ultrasonic-assisted acoustic precision structural component micro-hole cleaning device according to claim 1, characterized in that: The convex plate A (504) is configured in a cross shape.

3. The ultrasonic-assisted acoustic precision structural component micro-hole cleaning device according to claim 2, characterized in that: The surface of the ultrasonic branch pipe (501) is connected to convex plates B (505) distributed in a circumferential manner.

4. The ultrasonic-assisted acoustic precision structural component micro-hole cleaning device according to claim 3, characterized in that: The grinding balls (502) are arranged in groups and distributed in a spiral shape on the surface of the ultrasonic branch pipe (501).

5. The ultrasonic-assisted acoustic precision structural component micro-hole cleaning device according to claim 4, characterized in that: The interior of the ultrasonic branch pipe (501) is further connected to a vertical pipe (506). The upper end of the vertical pipe (506) passes through the ultrasonic tube (4) and is connected to a rotary joint (508). The rotary joint (508) is connected to the air duct (7) installed on the fan. A nozzle (507) is provided on the vertical pipe (506). The nozzle (507) passes through the through hole (503) and is inserted into the interior of the grinding ball (502). The surface of the grinding ball (502) is provided with uniformly distributed nozzle holes (509).

6. The ultrasonic-assisted acoustic precision structural component micro-hole cleaning device according to claim 5, characterized in that: A fixing rod (510) is connected to the inner wall of the grinding ball (502), and a guide plate (511) is rotatably connected to the fixing rod (510). The guide plate (511) is arranged in a Y shape. Two groups of baffles (513) are connected to the inner wall of the grinding ball (502), and the two groups of baffles (513) are distributed on the upper and lower sides of the guide plate (511). Two groups of air ducts (514) are formed between the guide plate (511) and the baffles (513).

7. The ultrasonic-assisted acoustic precision structural component micro-hole cleaning device according to claim 6, characterized in that: The front side of the guide plate (511) is tangent to the inner wall of the grinding ball (502), and the rear side of the guide plate (511) is connected to a counterweight block (512).

8. The ultrasonic-assisted acoustic precision structural component micro-hole cleaning device according to claim 7, characterized in that: The spray hole (509) is configured as a vortex-shaped hole.

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