Packaged piezoelectric ceramic pre-tensioning device

Abstract

The utility model discloses a kind of encapsulated piezoelectric ceramic pre-tightening devices, it is related to the field of encapsulated piezoelectric ceramic, including limit type support assembly, the inside of limit type support assembly is provided with rotating type clamping assembly, and the upper slide of limit type support assembly is installed with encapsulated piezoelectric component;Rotating type clamping assembly contains servo motor, and limit type support assembly internal structure is matched by rotating type clamping assembly internal structure.The encapsulated piezoelectric ceramic pre-tightening device, by servo motor starting driving rotating disc to rotate, by fixed plate cooperation first connecting bolt to pull connecting rod to rotate when rotating, and then pull second connecting bolt, sliding block is slid along reserved groove, to be clamped and limited to the encapsulated box above mounting platform under the action of four clamping plates, to be installed fast, reach device when using can be conveniently mounted and disassembled to device, to improve device installation efficiency, convenient for subsequent overhaul operation.

Description

Technical Field

[0001] This utility model relates to the field of encapsulated piezoelectric ceramic technology, specifically to an encapsulated piezoelectric ceramic pre-tightening device. Background Technology

[0002] Encapsulated piezoelectric ceramic pre-tightening devices are precision devices that utilize the inverse piezoelectric effect of piezoelectric ceramics. They encapsulate the piezoelectric ceramics within a structure and apply appropriate pressure through a pre-tightening mechanism to ensure stable operation of the piezoelectric ceramics and prevent damage due to stress concentration.

[0003] For example, a tile-type focused ultrasonic piezoelectric ceramic sheet and its packaging module, as disclosed in announcement number CN210022753U, has a convex surface as the positive electrode and a concave surface as the negative electrode. The two sides of the tile are curved or all four sides are curved. By applying a suitable voltage and resonant frequency, a focusing line or multiple focusing points are generated. This device solves the problem that existing ceramics can only achieve multi-point focusing by driving a micro motor, which makes the design of practical applications quite complicated.

[0004] Most of the existing technologies mentioned above improve the overall structure. However, while an existing encapsulated piezoelectric ceramic pre-tightening device solves the problem of multi-point focusing during operation, the ceramic installation is relatively complicated in actual use. Moreover, the ceramic is relatively fragile and easily damaged during installation, increasing the difficulty of subsequent maintenance. Utility Model Content

[0005] The purpose of this invention is to provide an encapsulated piezoelectric ceramic pre-tightening device to solve the problem mentioned in the background art that the existing encapsulated piezoelectric ceramic pre-tightening devices are inconvenient to install and disassemble in actual use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a packaged piezoelectric ceramic pre-tightening device, comprising a limiting support assembly, wherein a rotating clamping assembly is disposed inside the limiting support assembly, and a packaged piezoelectric assembly is slidably mounted above the limiting support assembly; the rotating clamping assembly includes a servo motor, and the device is quickly clamped and installed by means of the internal structure of the rotating clamping assembly cooperating with the internal structure of the limiting support assembly; the packaged piezoelectric assembly includes a package box, and the pre-tightening force is adjusted by means of the internal structure of the packaged piezoelectric assembly.

[0007] Furthermore, the limiting support assembly includes a fixed base, with bolts threaded onto each of the four corners of the fixed base, and four support columns fixedly installed on the top of the fixed base.

[0008] Furthermore, the same mounting platform is fixedly installed above each of the support columns, and the mounting platform has four reserved slots inside.

[0009] Furthermore, a servo motor is fixedly installed above the fixed base, and a rotating disk is splinedly connected to the output shaft above the servo motor.

[0010] Furthermore, four fixing plates are fixedly installed on the outer surface of the rotating disk, and a connecting rod is rotatably installed on the side end of each fixing plate.

[0011] Furthermore, a first connecting bolt is rotatably installed between each of the fixed plates and the connecting rod, and a second connecting bolt is rotatably installed on the side end of each of the connecting rods away from the first connecting bolt.

[0012] Furthermore, a slider is fixedly installed above each of the second connecting bolts, a clamping plate is fixedly installed above each slider, and each slider is slidably installed inside the reserved groove.

[0013] Furthermore, a screw is fixedly installed inside the packaging box, and a first nut is threaded onto the outer surface of the screw.

[0014] Furthermore, a second nut is threaded onto the outer surface of the screw, and a ceramic plate is disposed inside the encapsulation box. The second nut is close to the ceramic plate during installation, and the first nut is on the other side of the second nut.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This encapsulated piezoelectric ceramic pre-tightening device is started by a servo motor to drive the rotating disk to rotate. During rotation, the fixed plate and the first connecting bolt pull the connecting rod to rotate, which in turn pulls the second connecting bolt and the slider to slide along the reserved groove. Thus, under the action of the four clamping plates, the encapsulation box above the mounting platform is clamped and limited, thereby enabling quick installation. This allows for convenient installation and disassembly of the device during use, thereby improving the installation efficiency and facilitating subsequent maintenance operations. Furthermore, by rotating the second nut along the screw to press the ceramic plate, the preload is adjusted. Then, by rotating the first nut along the screw to press the second nut a second time, the device can use the double-nut anti-loosening principle to adjust the preload and improve the stability of the device during use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the mounting platform structure of this utility model; Figure 3 This is a schematic diagram of the limiting support component structure of this utility model; Figure 4This is a schematic diagram of the rotating clamping assembly structure of this utility model; Figure 5 This is a schematic diagram of the connecting rod structure of this utility model; Figure 6 This is a schematic diagram of the encapsulated piezoelectric component structure of this utility model.

[0017] In the diagram: 1. Limiting support assembly; 11. Fixed base; 12. Bolt; 13. Support column; 14. Mounting platform; 15. Reserved slot; 2. Rotary clamping assembly; 21. Servo motor; 22. Rotary disk; 23. Fixed plate; 24. First connecting bolt; 25. Connecting rod; 26. Second connecting bolt; 27. Slider; 28. Clamping plate; 3. Encapsulated piezoelectric assembly; 31. Encapsulation box; 32. Screw; 33. First nut; 34. Second nut; 35. Ceramic sheet. Detailed Implementation

[0018] 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.

[0019] Example 1: Please refer to Figure 1 - Figure 5A pre-tightening device for encapsulated piezoelectric ceramics is disclosed to address the problem of inconvenient installation and disassembly of existing encapsulated piezoelectric ceramic pre-tightening devices. The device includes a limiting support assembly 1, with a rotating clamping assembly 2 internally mounted therein. An encapsulated piezoelectric assembly 3 is slidably mounted above the limiting support assembly 1. The rotating clamping assembly 2 includes a servo motor 21, which, in conjunction with the internal structure of the limiting support assembly 1, enables rapid clamping and installation of the device. The encapsulated piezoelectric assembly 3 includes an encapsulation box 31, whose internal structure allows for adjustment of the pre-tightening force. The limiting support assembly 1 includes a fixed base 11, with bolts 12 threaded onto each of the four corners of the fixed base 11. A pre-tightening device is mounted on top of the fixed base 11. Four support columns 13 are fixedly installed, and the same mounting platform 14 is fixedly installed above each support column 13. The mounting platform 14 has four reserved slots 15 inside. A servo motor 21 is fixedly installed above the fixed base 11. The output shaft above the servo motor 21 is splinedly connected to a rotating disk 22. Four fixed plates 23 are fixedly installed on the outer surface of the rotating disk 22. A connecting rod 25 is rotatably installed on the side end of each fixed plate 23. A first connecting bolt 24 is rotatably installed between each fixed plate 23 and the connecting rod 25. A second connecting bolt 26 is rotatably installed on the side end of each connecting rod 25 away from the first connecting bolt 24. A slider 27 is fixedly installed above each second connecting bolt 26. A clamping plate 28 is fixedly installed above each slider 27. Each slider 27 is slidably installed inside the reserved slot 15.

[0020] like Figure 1 - Figure 5 As shown, the user installs the limiting support assembly 1 at the designated position, then inserts the bolts 12 into the threaded holes at the four corners of the fixed base 11, and then uses the position openings to limit and fix the fixed base 11. Next, the encapsulated piezoelectric assembly 3 is placed above the mounting platform 14. After placement, the user starts the servo motor 21, which drives the rotating disk 22 to rotate. The rotating disk 22 pulls the fixed plate 23 to change position. During this change, the first connecting bolt 24 pulls the connecting rod 25. The connecting rod 25, when moving, pulls the second connecting bolt 26 to move together. Since the slider 27 above the second connecting bolt 26 is limited by the reserved slot 15, the second connecting bolt 26 will slide along the reserved slot 15 during movement. At this time, the four second connecting bolts 26 will move together along the reserved slot 15 towards the center of the mounting platform 14, thereby clamping the encapsulated box 31 with the clamping plate 28 above the slider 27. This allows for quick installation of the device during use and facilitates subsequent disassembly and maintenance, thus improving the device's performance.

[0021] Example 2: Figure 1 - Figure 6 The technical solution shown, based on Embodiment 1, further discloses, in order to solve the problem that the preload force is inconvenient to adjust during use in existing encapsulated piezoelectric ceramic preload devices, that: a screw 32 is fixedly installed inside the encapsulation box 31, a first nut 33 is threadedly installed on the outer surface of the screw 32, a second nut 34 is threadedly installed on the outer surface of the screw 32, a ceramic plate 35 is provided inside the encapsulation box 31, the second nut 34 is close to the ceramic plate 35 during installation, and the first nut 33 is on the other side of the second nut 34.

[0022] like Figure 1 - Figure 6 As shown, when the preload needs to be adjusted, the user rotates the second nut 34 and moves it closer to the ceramic plate 35, thereby squeezing the ceramic plate 35 and tightening it. Then, the user rotates the first nut 33, rotating it along the screw 32 to gradually move it closer to the second nut 34, so that its side end is in close contact with the second nut 34, thereby preventing the second nut 34 from loosening. This allows for convenient adjustment of the preload during use, while preventing loosening and improving the stability of the device during use.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An encapsulated piezoelectric ceramic pre-tightening device, comprising a limiting support assembly (1), wherein a rotating clamping assembly (2) is disposed inside the limiting support assembly (1), and an encapsulated piezoelectric assembly (3) is slidably mounted above the limiting support assembly (1). Its features are: The rotary clamping assembly (2) includes a servo motor (21). The internal structure of the rotary clamping assembly (2) is combined with the internal structure of the limiting support assembly (1) to quickly clamp and install the device. The encapsulated piezoelectric component (3) includes an encapsulation box (31), and the preload is adjusted by means of the internal structure of the encapsulated piezoelectric component (3).

2. The packaged piezoelectric ceramic preloading device according to claim 1, characterized by: The limiting support assembly (1) includes a fixed base (11), and bolts (12) are threaded on the four corners of the fixed base (11). Four support columns (13) are fixedly installed on the top of the fixed base (11).

3. The packaged piezoelectric ceramic preloading device according to claim 2, characterized by: Each of the support columns (13) is fixedly mounted on the same mounting platform (14), and the mounting platform (14) has four reserved slots (15) inside.

4. The packaged piezoelectric ceramic preloading device according to claim 3, characterized by: A servo motor (21) is fixedly installed above the fixed base (11), and a rotating disk (22) is splinedly connected to the output shaft above the servo motor (21).

5. The packaged piezoelectric ceramic preloading device according to claim 4, characterized by: Four fixing plates (23) are fixedly installed on the outer surface of the rotating disk (22), and a connecting rod (25) is rotatably installed on the side end of each fixing plate (23).

6. The encapsulated piezoelectric ceramic pre-tightening device according to claim 5, characterized in that: A first connecting bolt (24) is rotatably mounted between each of the fixed plates (23) and the connecting rod (25), and a second connecting bolt (26) is rotatably mounted on the side end of each of the connecting rods (25) away from the first connecting bolt (24).

7. The encapsulated piezoelectric ceramic pre-tightening device according to claim 6, characterized in that: A slider (27) is fixedly installed above each of the second connecting bolts (26), a clamping plate (28) is fixedly installed above each slider (27), and each slider (27) is slidably installed inside the reserved slot (15).

8. The packaged piezoelectric ceramic preloading device according to claim 1, characterized by: A screw (32) is fixedly installed inside the packaging box (31), and a first nut (33) is threaded onto the outer surface of the screw (32).

9. The encapsulated piezoelectric ceramic pre-tightening device according to claim 8, characterized in that: The screw (32) has a second nut (34) threaded on its outer surface. A ceramic plate (35) is provided inside the encapsulation box (31). The second nut (34) is close to the ceramic plate (35) during installation. The first nut (33) is on the other side of the second nut (34).

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