Automatic cleaning device and method for piezoelectric ceramic ring of underwater acoustic transducer

Abstract

The invention belongs to the technical field of ceramic ring cleaning, and particularly discloses an automatic cleaning device and method for a piezoelectric ceramic ring of an underwater acoustic transducer. A first mover module and a second mover module are arranged on the portal frame structure, the first mover module is used for driving the second mover module to do horizontal reciprocating motion along the cross beam, and the second mover module is used for adjusting the height of the spray gun; and a third rotor module is arranged at the bottom of the portal frame structure, a ceramic ring mounting jig is arranged on the third rotor module, and the third rotor module is used for driving the ceramic ring mounting jig to move front and back. Horizontal displacement of the spray gun is achieved through the first mover module, vertical displacement of the spray gun is achieved through the second mover module, front-back movement of the ceramic ring mounting jig is achieved through the third mover module, it is guaranteed that the position of the spray gun can be accurately aligned with each ceramic ring, and high-efficiency, high-quality and high-consistency automatic cleaning of the ceramic rings is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of ceramic ring cleaning, and in particular relates to an automatic cleaning device and method for a piezoelectric ceramic ring of an underwater acoustic transducer. Background Art

[0002] In the field of underwater acoustic technology such as ocean exploration, underwater communications and underwater sonar, underwater acoustic transducers are key components, and their performance stability and reliability are extremely critical. As the core component of the underwater acoustic transducer, the piezoelectric ceramic ring is responsible for the mutual conversion of electrical energy and mechanical energy, and realizes the transmission and reception of sound waves. The cleaning of piezoelectric ceramic rings is an important process link in the bonding and assembly process of underwater acoustic transducers. Thoroughly cleaning the oxides, oil stains and other impurities on the surface of the silver-plated layer (electrode) of the ceramic ring is a prerequisite for the assembled transducer ceramic ring to have excellent conductivity and bonding strength, and is also a key factor in ensuring that the underwater acoustic transducer has ideal acoustic performance and working efficiency.

[0003] Under the existing process technology, the cleaning of piezoelectric ceramic rings in the manufacturing process of underwater acoustic transducers mainly relies on manual operation and traditional mechanical cleaning methods. First, the oxide on the surface of the silver-plated layer of the ceramic ring is wiped clean with an eraser, and then it is cleaned and dried in turn with different organic solvents. This cleaning method is cumbersome and highly dependent on manual labor. It is not only inefficient, but also difficult to ensure the consistency of cleaning quality, and the cleaning effect is limited. Therefore, it is particularly important to develop an efficient, green, and automated automatic cleaning system and method for piezoelectric ceramic rings of underwater acoustic transducers. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects in the prior art and provide an automatic cleaning device for a piezoelectric ceramic ring of an underwater acoustic transducer.

[0005] In a first aspect of the present invention, there is provided an automatic cleaning device for a piezoelectric ceramic ring of an underwater acoustic transducer, comprising a bracket and a control module, wherein a crossbeam is arranged on the top of the bracket, and the crossbeam and the bracket form a gantry structure;

[0006] A first movable submodule and a second movable submodule are arranged on the crossbeam, the first movable submodule is used to drive the second movable submodule to perform horizontal reciprocating motion along the crossbeam, a spray gun is arranged on the second movable submodule, the second movable submodule is used to adjust the height of the spray gun, and the spray gun is connected to an external dry ice cleaning machine;

[0007] A third mover module is provided at the bottom of the gantry structure, and a ceramic ring mounting fixture is provided on the third mover module for mounting ceramic rings in an array, and the third mover module is used to drive the ceramic ring mounting fixture to move forward and backward;

[0008] The position of the spray gun is adapted to the ceramic ring mounting fixture so that the dry ice particles sprayed by the spray gun clean the surface of the ceramic ring;

[0009] The first mover module, the second mover module, the third mover module and the spray gun are respectively connected to the control module, the control module obtains the control signal according to the type of the ceramic ring (25), the control module receives the control signal and loads the control mechanism, based on the control mechanism, the judgment module judges the control instruction corresponding to the control signal in the control mechanism, the control device sends the control instruction to drive the first mover module and the third mover module, and the control device sends the control instruction to limit the height of the spray gun.

[0010] A further solution is that two groups of the second mover modules and two groups of the third mover modules are respectively provided, and the two groups of the second mover modules and the two groups of the third mover modules are respectively symmetrically arranged along the center line of the gantry structure.

[0011] A further solution is that the first mover module includes a first screw located at the bottom of the beam and a first motor located outside the bracket;

[0012] One end of the first screw rod is rotatably connected to the inner wall of the bracket via a bearing, and the other end of the first screw rod is axially connected to the first motor;

[0013] The first motor is fixed to the outside of the bracket via a motor bracket;

[0014] Two first sliders are arranged on the first screw rod at intervals, and the two first sliders are both threadedly connected to the first screw rod;

[0015] The two second mover modules are respectively arranged on the sides of the two first sliding blocks through connecting plates.

[0016] A further solution is that the second mover module includes a longitudinal adjustment rod, and the back side of the longitudinal adjustment rod is fixedly connected to the connecting plate;

[0017] A slide rail is provided on the front of the longitudinal adjustment rod, a second slider is arranged in the slide rail, the second slider is slidably connected to the slide rail, an adjustment bolt is provided on the front of the second slider for adjusting and fixing the position of the second slider, and a clamping piece is also provided on the front of the second slider for clamping the spray gun.

[0018] A further solution is that a distance sensor is provided at the bottom of the clamp, and the distance sensor is connected to the control module for measuring the distance between the spray gun and the ceramic ring mounting fixture; the control module determines the height of the spray gun based on the model of the ceramic ring, adjusts the position of the adjusting bolt and obtains the parameters of the distance sensor in real time so that the height of the spray gun meets the design requirements.

[0019] A further solution is that the third mover module includes a support rod, a groove is provided inside the support rod along the length direction, a second screw rod and a guide rod are arranged inside the groove, two guide rods are provided, located on both sides of the second screw rod, and both ends of the guide rod are fixedly connected to the inner wall of the groove;

[0020] A third slider is also provided in the groove, the second screw rod and the guide rod respectively penetrate the third slider, the second screw rod is threadedly connected to the third slider, and the guide rod is slidably connected to the third slider; the top of the third slider extends to the outside of the groove and the top of the third slider is clamped with the ceramic ring mounting fixture;

[0021] A second motor is disposed at one end of the support rod, one end of the second screw rod is axially connected to the second motor, and the other end of the second screw rod is rotatably connected to the inner wall of the groove through a bearing.

[0022] A further solution is that the control module is configured to: drive the first movable sub-module to make the first slider move a first step in the horizontal direction, drive the third movable sub-module to make the third slider move a second step along the support rod, drive the first movable sub-module to make the first slider return to the starting position, drive the third movable sub-module to make the third slider return to the starting position, and complete the cleaning of the ceramic ring sleeved on the outer ring of the ceramic ring mounting jig; and gradually reduce the first step and the second step to complete the cleaning of the ceramic ring sleeved on the inner ring of the ceramic ring mounting jig.

[0023] A further solution is that the ceramic ring mounting fixture includes a fixture A surface and a fixture B surface, the four corners of the fixture A surface are provided with a first positioning piece, the four corners of the fixture B surface are provided with a second positioning piece, the first positioning piece is provided with a positioning hole, the end of the second positioning piece is a boss structure, the boss structure is adapted to the positioning hole, so that when the fixture A surface and the fixture B surface are in a buckled state, the boss structure is inserted into the positioning hole;

[0024] A plurality of limit rods are arranged in an array on the jig surface A and the jig surface B, respectively. When the jig surface A and the jig surface B are in a buckled state, the limit rods on the jig surface A abut against the limit rods on the jig surface B, and the ceramic ring installation jig is flipped over so that the ceramic ring is flipped from the limit rods on the jig surface A to the limit rods on the jig surface B.

[0025] A second aspect of the present invention provides an automatic cleaning method for a piezoelectric ceramic ring of an underwater acoustic transducer, comprising the following steps:

[0026] Conduct a preliminary inspection on the ceramic ring to be cleaned, and manually remove large impurities and loose attachments;

[0027] Manually install the ceramic ring to be cleaned into the ceramic ring installation jig and install it on the third slide;

[0028] The control module parameters are set based on the ceramic ring model, and based on the control module, the first movable submodule is driven to move the first slider in the horizontal direction by the first step length, and then the third movable submodule is driven to move the third slider along the support rod by the second step length, and the first movable submodule is driven to return the first slider to the starting position, and the third movable submodule is driven to return the third slider to the starting position, so as to complete the cleaning of the ceramic ring sleeved on the outer ring of the ceramic ring installation jig; and the first step length and the second step length are gradually reduced to complete the cleaning of the ceramic ring sleeved on the inner ring of the ceramic ring installation jig;

[0029] After cleaning one side, buckle the fixture A side and fixture B side and flip them over to clean the other side of the ceramic ring again;

[0030] After cleaning is completed, the ceramic ring installation fixture is manually removed, the cleaned ceramic ring is taken out, placed in a drying device for rapid drying, and collected to a designated location.

[0031] Compared with the prior art, the beneficial effect of the present invention is that the present invention connects the spray gun to an external dry ice cleaning machine, realizes horizontal displacement of the spray gun through the first mover module, realizes vertical displacement of the spray gun through the second mover module, and realizes forward and backward movement of the ceramic ring installation fixture through the third mover module, ensuring that the position of the spray gun can be accurately aligned with each ceramic ring, and realizing high-efficiency, high-quality, and high-consistency automatic cleaning of the ceramic ring of the underwater acoustic transducer. The dry ice particles are instantly sublimated, blasted, and stripped to remove the surface oxides and other attached contaminants of the silver-plated layer of the ceramic ring, without damaging the ceramic ring, and maintaining its original performance and precision.

[0032] The ceramic ring installation jig of the present invention has a plurality of limit rods arranged in an array, and the ceramic ring is sleeved on the limit rods, which can ensure the stability of the ceramic ring during the cleaning process. After one side of the ceramic ring is cleaned, the other side of the ceramic ring can be quickly cleaned by fastening and flipping the jig surface A and the jig surface B, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The following drawings are only used to illustrate and explain the present invention, and are not intended to limit the scope of the present invention, wherein:

[0034] Figure 1 : Schematic diagram of the structure of the present invention;

[0035] Figure 2 : Schematic diagram of the internal structure of the support rod;

[0036] Figure 3 : Schematic diagram of the ceramic ring installation fixture structure;

[0037] Figure 4 : Schematic diagram of cleaning trajectory;

[0038] Figure 5 : Schematic diagram of the automatic cleaning process of the present invention;

[0039] In the figure: 1. bracket; 2. crossbeam; 3. motor bracket; 4. first motor; 5. first screw rod; 6. first slider; 7. connecting plate; 8. longitudinal adjustment rod; 9. slide rail; 10. second slider; 11. adjustment bolt; 12. clamping member; 13. spray gun; 14. support rod; 15. second motor; 16. guide rod; 17. second screw rod; 18. third slider; 19. ceramic ring mounting fixture; 20. fixture A surface; 21. fixture B surface; 22. first positioning member; 23. second positioning member; 24. limit rod; 25. ceramic ring. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution, design method and advantages of the present invention clearer, the present invention is further described in detail by specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] The present invention provides an automatic cleaning device for a piezoelectric ceramic ring of an underwater acoustic transducer, comprising a bracket 1 and a control module. A crossbeam 2 is arranged on the top of the bracket 1, and the crossbeam 2 and the bracket 1 form a gantry structure; a first movable submodule and a second movable submodule are arranged on the crossbeam 2, the first movable submodule is used to drive the second movable submodule to perform horizontal reciprocating motion along the crossbeam 2, a spray gun 13 is arranged on the second movable submodule, and the second movable submodule is used to adjust the height of the spray gun 13, and the spray gun 13 is connected to an external dry ice cleaning machine. In this embodiment, the dry ice cleaning machine is model YH GK-H10, which is mainly composed of dry ice cleaning components, nozzles, cleaning particle conveying pipelines and related accessories. The dry ice cleaning machine adopts a cylinder to push dry ice blocks, a motor drives a cutting disc to chop dry ice, and a material distribution rotor conveys dry ice to an air pressure mixing bin, and dry ice particles are sprayed out from the spray gun mouth at high speed through high air pressure to reach the surface of a part to be cleaned, thereby achieving a cleaning effect. Since the dry ice cleaning machine is equipped with a spray gun, the spray gun of the dry ice cleaning machine can be fixed on the second mover module during cleaning.

[0042] A third mover module is arranged at the bottom of the gantry structure, and a ceramic ring mounting fixture 19 is arranged on the third mover module for mounting a ceramic ring 25. The third mover module is used to drive the ceramic ring mounting fixture 19 to move forward and backward; the position of the spray gun 13 is adapted to the ceramic ring mounting fixture 19 so that the dry ice particles sprayed by the spray gun 13 clean the surface of the ceramic ring 25.

[0043] The first mover module, the second mover module, the third mover module and the spray gun are respectively connected to the control module, and the control module obtains the control signal according to the category of the ceramic ring 25. The control module receives the control signal and loads the control mechanism. Based on the control mechanism, the judgment module judges the control instruction corresponding to the control signal in the control mechanism. The control device sends the control instruction to drive the first mover module and the third mover module, and the control device sends the control instruction to limit the height of the spray gun 13.

[0044] In order to further improve the cleaning efficiency, in the present embodiment, two groups of the second mover modules and two groups of the third mover modules are respectively provided, and the two groups of the second mover modules and the two groups of the third mover modules are respectively symmetrically arranged along the center line of the gantry structure.

[0045] In the above, the first movable submodule includes a first screw rod 5 located at the bottom of the crossbeam 2 and a first motor 4 located on the outside of the bracket 1; one end of the first screw rod 5 is rotatably connected to the inner wall of the bracket through a bearing, and the other end of the first screw rod 5 is axially connected to the first motor 4; the first motor 4 is fixed to the outside of the bracket 1 through a motor bracket 3; two first sliders 6 are arranged on the first screw rod 5 at intervals, and the two first sliders 6 are both threadedly connected to the first screw rod 5; two second movable submodules are respectively arranged on the sides of the two first sliders 6 through connecting plates 7.

[0046] In the above, the second movable submodule includes a longitudinal adjustment rod 8, the back of which is fixedly connected to the connecting plate 7; a slide rail 9 is provided on the front of the longitudinal adjustment rod 8, a second slider 10 is provided in the slide rail 9, the second slider 10 is slidably connected to the slide rail 9, an adjustment bolt 11 is provided on the front of the second slider 10 for adjusting and fixing the position of the second slider 10, and a clamp 12 is also provided on the front of the second slider 10 for clamping the spray gun 13. A distance sensor is provided at the bottom of the clamp 12, which is connected to the control module and is used to measure the distance between the spray gun 13 and the ceramic ring mounting fixture 19; the control module determines the height of the spray gun 13 based on the model of the ceramic ring 25, adjusts the position of the adjustment bolt 11 and obtains the parameters of the distance sensor in real time, so that the height of the spray gun 13 meets the design requirements.

[0047] like Figure 2As shown, the third mover module includes a support rod 14, a groove is opened inside the support rod 14 along the length direction, a second screw rod 17 and a guide rod 16 are arranged inside the groove, and two guide rods 16 are arranged, which are located on both sides of the second screw rod 17, and the two ends of the guide rod 16 are fixedly connected to the inner wall of the groove; a third slider 18 is also arranged in the groove, and the second screw rod 17 and the guide rod 16 respectively penetrate the third slider 18, and the second screw rod 17 is threadedly connected to the third slider 18, and the guide rod 16 is threadedly connected to the third slider 18 is slidably connected; the top of the third slider 18 extends to the outside of the groove and the top of the third slider 18 is clamped with the ceramic ring mounting fixture 19; in this embodiment, a clamping groove is opened at the bottom or top of the ceramic ring mounting fixture 19, and the clamping groove is adapted to the third slider 18 so that the third slider 18 can be clamped inside the clamping groove; a second motor 15 is provided at one end of the support rod 14, one end of the second screw rod 17 is axially connected to the second motor 15, and the other end of the second screw rod 17 is rotatably connected to the inner wall of the groove through a bearing.

[0048] In the above, the control module is configured to: drive the first movable submodule to make the first slider 6 move the first step length in the horizontal direction, drive the third movable submodule to make the third slider 18 move the second step length along the support rod 14, drive the first movable submodule to make the first slider 6 return to the starting position, drive the third movable submodule to make the third slider 18 return to the starting position, and complete the cleaning of the ceramic ring 25 sleeved on the outer ring of the ceramic ring mounting jig 19; and gradually reduce the first step length and the second step length to complete the cleaning of the ceramic ring 25 sleeved on the inner ring of the ceramic ring mounting jig 19. In this process, gradually reducing the first step length and the second step length is specifically determined according to the spacing of the ceramic ring mounting jig 19, and can be achieved by controlling the start and stop and the speed of the first motor 4 and the second motor 15 by the control module. The final cleaning trajectory is as follows. Figure 4 shown.

[0049] like Figure 3As shown, the ceramic ring installation jig 19 includes a jig A surface 20 and a jig B surface 21, the four corners of the jig A surface 20 are provided with first positioning members 22, the four corners of the jig B surface 21 are provided with second positioning members 23, the first positioning member 22 is provided with a positioning hole, the end of the second positioning member 23 is a boss structure, the boss structure is adapted to the positioning hole, so that when the jig A surface 20 and the jig B surface 21 are in a buckled state, the boss structure is inserted into the positioning hole; a plurality of limiting rods 24 are arranged in an array on the jig A surface 20 and the jig B surface 21, respectively, when the jig A surface 20 and the jig B surface 21 are in a buckled state, the limiting rod 24 of the jig A surface 20 abuts against the limiting rod 24 of the jig B surface 21, and the ceramic ring installation jig 19 is flipped over, so that the ceramic ring 25 is flipped from the limiting rod 24 of the jig A surface 20 to the limiting rod 24 of the jig B surface 21. After one side of the ceramic ring 25 is cleaned, the other side of the ceramic ring 25 can be quickly cleaned by snapping the jig A surface 20 and the jig B surface 21 together and flipping them, thereby improving the cleaning efficiency.

[0050] Example 2

[0051] Based on Example 1, this embodiment also provides an automatic cleaning method for a piezoelectric ceramic ring of an underwater acoustic transducer, such as Figure 5 As shown, the following steps are included:

[0052] Perform a preliminary inspection on the ceramic ring 25 to be cleaned, and manually remove large impurities and loose attachments;

[0053] Manually install the ceramic ring 25 to be cleaned into the ceramic ring installation fixture 19 and install it on the third slide block 18;

[0054] The control module parameters are set based on the model of the ceramic ring 25, and based on the control module, the first movable submodule is driven to make the first slider 6 move the first step length in the horizontal direction, and then the third movable submodule is driven to make the third slider 18 move the second step length along the support rod 14, and the first movable submodule is driven to make the first slider 6 return to the starting position, and the third movable submodule is driven to make the third slider 18 return to the starting position, so as to complete the cleaning of the ceramic ring 25 sleeved on the outer ring of the ceramic ring mounting fixture 19; and the first step length and the second step length are gradually reduced to complete the cleaning of the ceramic ring 25 sleeved on the inner ring of the ceramic ring mounting fixture 19;

[0055] After one side is cleaned, the jig A surface 20 and the jig B surface 21 are buckled and turned over to clean the other side of the ceramic ring 25 again;

[0056] After cleaning is completed, the ceramic ring installation jig 19 is manually removed, the cleaned ceramic ring 25 is taken out, placed in a drying device for rapid drying, and collected to a designated location.

[0057] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An automatic cleaning device for a piezoelectric ceramic ring of an underwater acoustic transducer, comprising a bracket (1) and a control module, characterized in that: A crossbeam (2) is arranged on the top of the support (1), and the crossbeam (2) and the support (1) form a gantry structure; A first movable submodule and a second movable submodule are arranged on the crossbeam (2), the first movable submodule is used to drive the second movable submodule to perform horizontal reciprocating motion along the crossbeam (2), a spray gun (13) is arranged on the second movable submodule, the second movable submodule is used to adjust the height of the spray gun (13), and the spray gun (13) is connected to an external dry ice cleaning machine; A third mover module is arranged at the bottom of the gantry structure, a ceramic ring mounting fixture (19) is arranged on the third mover module for mounting ceramic rings (25) in an array, and the third mover module is used to drive the ceramic ring mounting fixture (19) to move forward and backward; The position of the spray gun (13) is adapted to the ceramic ring mounting fixture (19) so that the dry ice particles sprayed by the spray gun (13) clean the surface of the ceramic ring (25); The first mover module, the second mover module, the third mover module and the spray gun are respectively connected to the control module, the control module obtains the control signal according to the type of the ceramic ring (25), the control module receives the control signal and loads the control mechanism, based on the control mechanism, the judgment module judges the control instruction corresponding to the control signal in the control mechanism, the control device sends the control instruction to drive the first mover module and the third mover module, and the control device sends the control instruction to limit the height of the spray gun (13).

2. The automatic cleaning device for piezoelectric ceramic ring of underwater acoustic transducer according to claim 1 is characterized in that: The second mover modules and the third mover modules are respectively provided in two groups, and the two groups of the second mover modules and the two groups of the third mover modules are respectively symmetrically arranged along the center line of the gantry structure.

3. The automatic cleaning device for piezoelectric ceramic ring of underwater acoustic transducer according to claim 2 is characterized in that: The first movable submodule comprises a first screw rod (5) located at the bottom of the crossbeam (2) and a first motor (4) located outside the bracket (1); One end of the first screw rod (5) is rotatably connected to the inner wall of the bracket via a bearing, and the other end of the first screw rod (5) is axially connected to the first motor (4); The first motor (4) is fixed to the outside of the bracket (1) via a motor bracket (3); Two first sliding blocks (6) are arranged at intervals on the first screw rod (5), and the two first sliding blocks (6) are both threadedly connected to the first screw rod (5); The two second mover modules are respectively arranged on the side surfaces of the two first sliding blocks (6) via connecting plates (7).

4. The automatic cleaning device for piezoelectric ceramic ring of underwater acoustic transducer according to claim 3 is characterized in that: The second mover module comprises a longitudinal adjustment rod (8), the back side of the longitudinal adjustment rod (8) being fixedly connected to the connecting plate (7); A slide rail (9) is provided on the front of the longitudinal adjustment rod (8), a second slider (10) is provided in the slide rail (9), the second slider (10) is slidably connected to the slide rail (9), an adjustment bolt (11) is provided on the front of the second slider (10) for adjusting and fixing the position of the second slider (10), and a clamping piece (12) is also provided on the front of the second slider (10) for clamping the spray gun (13).

5. The automatic cleaning device for piezoelectric ceramic ring of underwater acoustic transducer according to claim 4 is characterized in that: A distance sensor is provided at the bottom of the clamp (12), and the distance sensor is connected to the control module and is used to measure the distance between the spray gun (13) and the ceramic ring mounting fixture (19); the control module determines the height of the spray gun (13) based on the model of the ceramic ring (25), adjusts the position of the adjusting bolt (11) and obtains the parameters of the distance sensor in real time, so that the height of the spray gun (13) meets the design requirements.

6. The automatic cleaning device for piezoelectric ceramic ring of underwater acoustic transducer according to claim 5, characterized in that: The third movable submodule comprises a support rod (14), a groove is provided inside the support rod (14) along the length direction, a second screw rod (17) and a guide rod (16) are arranged inside the groove, two guide rods (16) are provided, and are located on both sides of the second screw rod (17), and both ends of the guide rod (16) are fixedly connected to the inner wall of the groove; A third slider (18) is also provided in the groove, the second screw rod (17) and the guide rod (16) respectively penetrate the third slider (18), the second screw rod (17) is threadedly connected to the third slider (18), and the guide rod (16) is slidably connected to the third slider (18); the top of the third slider (18) extends to the outside of the groove, and the top of the third slider (18) is clamped with the ceramic ring mounting fixture (19); A second motor (15) is disposed at one end of the support rod (14), one end of the second screw rod (17) is axially connected to the second motor (15), and the other end of the second screw rod (17) is rotatably connected to the inner wall of the groove via a bearing.

7. The automatic cleaning device for piezoelectric ceramic ring of underwater acoustic transducer according to claim 6 is characterized in that: The control module is configured to: drive the first movable submodule to move the first slider (6) in the horizontal direction by the first step length, drive the third movable submodule to move the third slider (18) along the support rod (14) by the second step length, drive the first movable submodule to return the first slider (6) to the starting position, drive the third movable submodule to return the third slider (18) to the starting position, and complete the cleaning of the ceramic ring (25) sleeved on the outer ring of the ceramic ring mounting fixture (19); and gradually reduce the first step length and the second step length to complete the cleaning of the ceramic ring (25) sleeved on the inner ring of the ceramic ring mounting fixture (19).

8. The automatic cleaning device for piezoelectric ceramic ring of underwater acoustic transducer according to claim 7, characterized in that: The ceramic ring mounting fixture (19) comprises a fixture A surface (20) and a fixture B surface (21); the four corners of the fixture A surface (20) are provided with first positioning members (22); the four corners of the fixture B surface (21) are provided with second positioning members (23); the first positioning member (22) is provided with a positioning hole; the end of the second positioning member (23) is a boss structure; the boss structure is adapted to the positioning hole so that when the fixture A surface (20) and the fixture B surface (21) are in a buckled state, the boss structure is inserted into the positioning hole; A plurality of limiting rods (24) are arranged in an array on the jig A surface (20) and the jig B surface (21), respectively. When the jig A surface (20) and the jig B surface (21) are in a buckled state, the limiting rods (24) on the jig A surface (20) abut against the limiting rods (24) on the jig B surface (21), and the ceramic ring installation jig (19) is turned over, so that the ceramic ring (25) is turned over from the limiting rods (24) on the jig A surface (20) to the limiting rods (24) on the jig B surface (21).

9. An automatic cleaning method for a piezoelectric ceramic ring of an underwater acoustic transducer, characterized in that: The following steps are involved: The ceramic ring (25) to be cleaned is initially inspected to manually remove large impurities and loose attachments; Manually placing the ceramic ring (25) to be cleaned into a ceramic ring mounting fixture (19) and mounting it on a third slide block (18); The control module parameters are set based on the model of the ceramic ring (25); based on the control module, the first movable submodule is driven to move the first slider (6) in the horizontal direction by the first step length, and then the third movable submodule is driven to move the third slider (18) along the support rod (14) by the second step length; the first movable submodule is driven to return the first slider (6) to the starting position, and the third movable submodule is driven to return the third slider (18) to the starting position, thereby completing the cleaning of the ceramic ring (25) sleeved on the outer ring of the ceramic ring mounting fixture (19); and the first step length and the second step length are gradually reduced to complete the cleaning of the ceramic ring (25) sleeved on the inner ring of the ceramic ring mounting fixture (19); After one side is cleaned, the jig surface A (20) and the jig surface B (21) are buckled and turned over to clean the other side of the ceramic ring (25) again; After cleaning is completed, the ceramic ring installation jig (19) is manually removed, the cleaned ceramic ring (25) is taken out, placed in a drying device for rapid drying, and collected at a designated location.

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