Multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform

Abstract

Multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform relates to the fields of optical film, cell operation, gene editing and the like. The vibration suppression integrated mechanism and the frequency division vibration suppression support column are internally provided with a rectangular slot capable of embedding a local resonance superstructure, the vibration suppression integrated mechanism is fixedly connected with the upper support disc and the lower support disc through a countersunk bolt, a piezoelectric motor is installed between the base and the lower support disc, the base places movable cushion blocks, a pre-tightening bolt applies a thrust to the cushion blocks, and then the thrust is transmitted to the piezoelectric motor driver, so that the pre-stress adjustment of the driver is realized. The single driving source is used to realize multi-dimensional precise adjustment, and the embedded superstructure vibration suppression scheme design is matched, so that the suppression of different frequency band vibrations from the outside can be realized, so as to improve the output precision of the platform end and complete the related functions.

Description

Technical Field

[0001] This invention relates to the fields of optical thin films, cell manipulation, and gene editing, and particularly to a precision control platform that can achieve multidimensional adjustment of actuation and integrated broadband and frequency-division band vibration suppression. Background Technology

[0002] With the deepening research into scientific issues in fields such as distant celestial bodies, black holes, cell engineering, and gene editing, the development of high-resolution, high-precision optical primary mirrors or compliant cell manipulators is extremely crucial. Current technologies mostly use multiple single-degree-of-freedom drive mechanisms or actuators in combination to achieve precise adjustment functions. This approach requires precise control of individual mechanisms, is highly challenging, demands a high degree of coordination, results in a large and complex system, and carries numerous potential risks. Summary of the Invention

[0003] This invention proposes a multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform. It achieves multi-dimensional precision adjustment through a single drive source. At the same time, with the embedded superstructure vibration suppression scheme design, it can suppress vibrations of different frequency bands from the outside world, thereby improving the output accuracy of the platform end and completing related functions.

[0004] The solution adopted by the present invention to solve the above-mentioned technical problems is: a multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform, characterized in that it includes: countersunk bolts, vibration suppression integrated mechanism, piezoelectric motor, pad block, pre-tightening bolt, fixing bolt, upper support disk, lower support disk, local resonance superstructure, and frequency division vibration suppression support column;

[0005] The vibration damping integrated mechanism has an upper support disc and a lower support disc at its longitudinal ends, and the vibration damping integrated mechanism is fixedly connected to the upper support disc and the lower support disc respectively by countersunk bolts;

[0006] The upper support disc is fixedly connected to the base by at least three frequency-division vibration damping support columns. The piezoelectric motor is installed between the base and the lower support disc. A groove for fixing the piezoelectric motor is opened at the center of the base and the lower support disc. In addition, a pad is placed in the groove of the base. The pre-tightening bolt at the lower end of the base applies a thrust to the pad, which is then transmitted to the driver of the piezoelectric motor to realize the prestress adjustment.

[0007] The vibration damping integrated mechanism has an embedding slot inside for embedding a local resonant superstructure; each frequency-division vibration damping support column also has an embedding slot for embedding a local resonant superstructure.

[0008] Preferably, the embedded groove of the present invention is one of a rectangular groove, a circular groove, or an elliptical groove, which reduces the impact of external vibration interference on the platform's operation.

[0009] Preferably, the local resonant superstructure of the present invention is installed in the embedded groove in any direction, thereby achieving suppression of vibrations in different directions.

[0010] Preferably, the local resonant superstructure of the present invention includes a grid-shaped main frame, each frame of the grid-shaped main frame is filled with an elastic beam, and a mass block is disposed in the middle of the elastic beam in each frame.

[0011] Preferably, the local resonant superstructure of the present invention includes a design based on a mass-spring-damping model, with the main frame and elastic beam realized by 3D printing, and mass units designed with mass blocks of different volumes and lead blocks selected; thereby achieving wideband vibration suppression of the multidimensional tensioning actuation platform.

[0012] Preferably, the elastic beam of the present invention is a flexible beam with different stiffness, and adopts one of the following: flexural beam, annular beam, or fan-shaped beam, to increase or decrease the equivalent stiffness.

[0013] Preferably, the elastic beam inside the local resonant superstructure of the present invention maintains an arbitrary angle and direction with the grid-shaped main frame in order to suppress vibrations from different directions.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The vibration damping integrated mechanism designed in this invention integrates a compliant amplification mechanism and a flexible hinge, with an embedded multi-dimensional superstructure. This further amplifies the displacement of the piezoelectric motor and reverses its motion, thereby giving the multi-dimensional tensioning actuation platform a wider range of motion. The superstructure embedded within the Scott-Russell compliant amplification mechanism and frequency-division vibration damping support column provides broadband vibration damping against external interference, ensuring the output accuracy of the tensioning adjustment platform. The overall symmetrical design effectively ensures the motion decoupling characteristics of the eight Scott-Russell mechanisms and enables effective deployment of the circular thin-film structure. The embedded superstructure is fabricated using 3D printing and can be redesigned according to the frequency band, amplitude, and direction of external interference, and assembled correspondingly within the platform, simplifying the manufacturing process and expanding its applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform of the present invention;

[0017] Figure 2 This is a schematic diagram of the vibration damping integrated mechanism of the present invention;

[0018] Figure 3 This is a schematic diagram of the local resonant superstructure of the present invention;

[0019] Among them: 1. Countersunk bolt, 2. Vibration damping integrated mechanism, 3. Piezoelectric motor, 4. Pad block, 5. Preload bolt, 6. Fixing bolt, 7. Upper support disc, 8. Lower support disc, 9. Local resonant superstructure, 10. Frequency-divided vibration damping support column, 11. Base, 901. Folded beam, 902. First mass block, 903. Second mass block, 904. Main frame, 905. Third mass block, 906. Fan-shaped beam, 907. Fourth mass block. Detailed Implementation

[0020] To make the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Example

[0021] like Figure 1 , Figure 2 As shown, a multi-dimensional adjustment action and integrated frequency division vibration suppression platform that can realize wideband frequency division vibration suppression includes: countersunk bolt 1, integrated vibration suppression mechanism 2, piezoelectric motor 3, pad block 4, pre-tightening bolt 5, fixing bolt 6, upper support disk 7, lower support disk 8, local resonant superstructure 9, frequency division vibration suppression support column 10, and base 11.

[0022] The vibration damping integrated mechanism 2 of this invention is a Scott-Russell compliant amplification and vibration damping integrated mechanism. As a key component of the entire multi-dimensional adjustment actuation platform, it adopts an integrated design and manufacturing process. Its interior has rectangular slots for embedding the local resonant superstructure 9. Additionally, rectangular slots for embedding the superstructure are also formed in the three frequency-division vibration damping support columns 10. The Scott-Russell compliant amplification and vibration damping integrated mechanism is fixedly connected to the upper support disk 7 and the lower support disk 8 via countersunk bolts 1. The lower support disk 8 is fixedly connected to the base 11 via the three frequency-division vibration damping support columns 10. The piezoelectric motor 3 (intelligent material actuator) is installed between the base 11 and the lower support disk 8. The lower support disk 8 and the base 11 have slots for positioning and installing the intelligent material actuator. Furthermore, a movable pad 4 is placed in the slot of the base 11. The pre-tightening bolt 5 applies a pushing force to the pad 4 through the bottom, which is then transmitted to the intelligent material actuator, realizing the prestress adjustment of the actuator. Driven by a smart material actuator, eight Scott-Russell compliant amplification and vibration damping integrated mechanisms can be stably output to the outside, thereby enabling thin film mirrors, cell membranes, skin, etc. to adjust and tighten in eight directions.

[0023] The Scott-Russell compliant amplification and vibration suppression integrated mechanism of the present invention is based on compliant mechanism technology. Utilizing a compliant amplification mechanism design and a flexible hinge design, it can realize output stroke amplification, commutation, frequency band vibration suppression, and external multi-dimensional output actuation of the driver, thereby achieving a large amplitude and high dynamic response output of the driver.

[0024] The Scott-Russell compliant amplification mechanism of the present invention employs a biomimetic design for its output flexible arm, which has an optimized cross-sectional shape, increasing output arm stiffness, reducing resonance risk, and improving output stability.

[0025] The Scott-Russell compliant amplification mechanism of this invention is internally designed with an embedding slot (which can be designed as a rectangular, circular, or elliptical embedding slot, etc., according to actual needs) to embed the designed frequency conversion vibration suppression superstructure, thereby reducing the impact of external vibration interference on the platform's operation. Simultaneously, the embedded superstructure module can be installed in different directions within the slot, thereby achieving suppression of vibrations in different directions.

[0026] The local resonant superstructure 9 of the present invention includes a main frame and elastic beam designed according to the mass-spring-damping model, which are realized by 3D printing. The mass unit is designed with mass blocks of different volumes and selected with lead blocks of higher density; thus, it realizes wideband vibration suppression of the multidimensional tensioning actuation platform.

[0027] The elastic beam of the present invention can be designed as a flexible beam with different stiffness according to the frequency band or form of external vibration interference, and can be one of the following: flexural beam, ring beam, or fan-shaped beam, to increase or decrease the equivalent stiffness.

[0028] The elastic beam inside the local resonant superstructure of this invention maintains an arbitrary angle and direction with the grid-shaped main frame in order to suppress vibrations from different directions.

[0029] The frequency division vibration damping support column of this invention also has a rectangular groove or other shaped embedding groove inside, which can be used to place the superstructure, thereby suppressing vibration interference from different directions outside the platform and further improving the platform's motion accuracy.

[0030] The eight rectangular slots in the Scott-Russell compliant amplification mechanism and the three rectangular slots in the frequency division vibration damping support column of this invention can be further optimized through topology to greatly reduce the overall weight.

[0031] The platform requires only a single intelligent material actuator to achieve multi-dimensional actuation adjustments, eliminating the need for multiple actuators working together. This reduces platform load, saves energy, and simplifies collaborative control. For precise adjustments, the platform uses only the single intelligent material actuator for closed-loop control, enabling adaptive adjustment to the actuation target. The embedded superstructure can be rapidly designed and fabricated using 3D printing, better mitigating environmental interference and achieving wideband and frequency-division suppression of external vibrations, further ensuring the platform's adjustment accuracy.

[0032] Figure 1The diagram shows the structure of the multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform of the present invention. The vibration suppression integrated mechanism 2, namely the Scott-Russell compliant amplification and vibration suppression integrated mechanism, is designed in conjunction with the lever amplification mechanism to achieve a secondary amplified displacement actuation effect. Secondly, the output flexible arm of the Scott-Russell compliant amplification and vibration suppression integrated mechanism is optimized to mimic the form of a crane arm, increasing the bottom stiffness of the output flexible arm and improving its output stability. Finally, the Scott-Russell compliant amplification and vibration suppression integrated mechanism has a rectangular slot inside to house the designed local resonant superstructure 9, thereby reducing the interference of external excitation on the platform's actuation.

[0033] Specifically, the internal design of the frequency division vibration damping support column 10 can accommodate a rectangular slot for the local resonant superstructure 9, and can utilize the piezoelectric motor 3 and external excitation interference to further improve the platform's motion stability.

[0034] like Figure 3 As shown, the local resonant superstructure 9 of this invention is designed based on a mass-spring-damping model. The main frame 904 is made of TPU, a 3D printable material, and the four mass blocks of different volumes are made of lead with high density, namely the first mass block 902, the second mass block 903, the third mass block 905, and the fourth mass block 907, which can achieve broadband vibration suppression for a multi-dimensional tensioning actuation platform. The local resonant superstructure 9 has beams of different forms, adopting a spring-like design, with two different forms: a folded beam 901 and a fan-shaped beam 906. All beams of different forms are designed in parallel with the outer frame 904.

[0035] like Figure 1 As shown, the eight Scott-Russell compliant amplification and vibration damping integrated mechanisms are designed in parallel and symmetrically, giving the platform motion decoupling characteristics. Driven by the piezoelectric motor 3, the eight Scott-Russell compliant amplification mechanisms 2 output motion outward in an "umbrella-like" manner, realizing the tensioning action on the thin film.

[0036] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are intended to help understand the methods and core ideas of the present invention. However, the implementation methods of the present invention are not limited to the above embodiments. Any changes, modifications, combinations, and simplifications made without departing from the spirit and principle of the present invention should be considered equivalent substitutions and are included within the protection scope of the present invention.

Claims

1. A multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform, characterized in that... include: Countersunk bolt (1), vibration damping integrated mechanism (2), piezoelectric motor (3), pad (4), preload bolt (5), fixing bolt (6), upper support disc (7), lower support disc (8), local resonant superstructure (9), frequency division vibration damping support column (10). The vibration damping integrated mechanism (2) is a Scott-Russell compliant amplification and vibration damping integrated mechanism. As a key component of the entire multidimensional adjustment actuation platform, it adopts an integrated design and processing molding. It has an embedding groove for embedding the local resonance superstructure (9) inside. The upper support disk (7) and the lower support disk (8) are respectively set at the longitudinal ends of the vibration damping integrated mechanism (2). The vibration damping integrated mechanism (2) is fixedly connected to the upper support disk (7) and the lower support disk (8) respectively by countersunk bolts (1). The upper support disc (7) is fixedly connected to the base (11) by at least three frequency-division vibration damping support columns (10); the piezoelectric motor (3) is installed between the base (11) and the lower support disc (8), and a groove for fixing the piezoelectric motor (3) is opened at the center of the base (11) and the lower support disc (8); in addition, a pad (4) is placed in the groove of the base (11), and the pre-tightening bolt (5) at the lower end of the base (11) applies a thrust to the pad (4), which is then transmitted to the driver of the piezoelectric motor (3) to realize the prestress adjustment; The local resonant superstructure (9) includes a grid-shaped main frame (904), each frame of the grid-shaped main frame (904) is filled with an elastic beam, and a mass block is set in the middle of the elastic beam in each frame; Each frequency-division vibration damping support column also has an embedding slot for embedding the local resonant superstructure (9).

2. The multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform according to claim 1, characterized in that... The aforementioned embedded groove is one of a rectangular groove, a circular groove, or an elliptical groove, which reduces the impact of external vibration interference on the platform's operation.

3. The multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform according to claim 1, characterized in that... The aforementioned local resonant superstructure (9) is installed in the embedded slot in any direction, thereby suppressing vibrations in different directions.

4. The multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform according to claim 1, characterized in that... The aforementioned local resonant superstructure (9) is designed based on the mass-spring-damping model. The main frame and elastic beam are realized by 3D printing. The mass unit is designed with mass blocks of different volumes and lead blocks are selected to achieve wideband vibration suppression of the multidimensional tensioning actuation platform.

5. The multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform according to claim 1, characterized in that... The aforementioned elastic beams are flexible beams with different stiffnesses, employing one of the following: flexural beams, ring beams, or fan-shaped beams, to increase or decrease the equivalent stiffness.

6. The multi-dimensional adjustment actuation and frequency division vibration suppression integrated platform according to claim 1, characterized in that... The elastic beam inside the aforementioned local resonant superstructure (9) maintains an arbitrary angle and direction with the grid-shaped main frame in order to suppress vibrations from different directions.

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