Excitation device capable of multi-dimensional vibration

Abstract

The application provides a multi-dimensional vibration excitation device, which comprises a base provided with a workpiece connecting portion, a lifting assembly comprising a vibration table and a first driving member, the vibration table being arranged above the base in a lifting manner, and the first driving member being in driving connection with the vibration table to drive the vibration table to lift, and a vibration assembly comprising an exciter and a second driving member, the exciter being rotatably arranged on the vibration table about a vertical axis, and the second driving member being in driving connection with the exciter to drive the exciter to rotate. Through the technical scheme provided in the application, the problem that in the related art, when the workpiece is large, excitation force cannot be applied in multiple dimensions, resulting in poor vibration aging treatment effect on the large workpiece, can be solved.

Description

Technical Field

[0001] This invention relates to the field of machining equipment technology, and more specifically, to a vibration excitation device capable of achieving multi-dimensional vibration. Background Technology

[0002] A vibration excitation device is installed on vibrating machinery to generate excitation force. It is a major component of vibrating machinery and plays a decisive role in the vibration mode. Vibrating machinery equipped with vibration excitation devices is widely used in industries such as metallurgy and mining, industrial production, engineering construction, and experimental equipment for tasks such as screening, conveying, compacting, vibration aging, and molding of materials. In these processes, the workpieces produced often exhibit internal stress, which can gradually lead to cracking over long-term use, affecting their service life. Therefore, a vibration excitation device is needed to vibrate the workpiece, eliminate residual internal stress, and thus prevent deformation or cracking, ensuring the geometric accuracy of the workpiece.

[0003] In related technologies, a vibration table is set on the base, and the vibration source of a linear motor is used to vibrate in the X and Y directions, thereby enabling multi-dimensional vibration aging treatment in the X and Y directions.

[0004] However, the linear motors in the related technologies only provide excitation force in the X and Y directions through the X-axis excitation source and the Y-axis excitation source. When the workpiece is large, it is impossible to apply excitation force in multiple dimensions, resulting in poor vibration aging treatment effect for large workpieces. Summary of the Invention

[0005] This invention provides a vibration excitation device that can realize multi-dimensional vibration, so as to solve the problem in related technologies that it is impossible to apply excitation force in multiple dimensions when the workpiece is large, resulting in poor vibration aging treatment effect for large workpieces.

[0006] This invention provides a vibration excitation device capable of achieving multi-dimensional vibration. The vibration excitation device includes: a base having a workpiece connection part; a lifting assembly including a vibration table and a first driving member, the vibration table being movably and vertically disposed above the base, the first driving member being drivenly connected to the vibration table to drive the vibration table to move up and down; and a vibration assembly including a vibrator and a second driving member, the vibrator being rotatably disposed on the vibration table about a vertical axis, the second driving member being drivenly connected to the vibrator to drive the vibrator to rotate.

[0007] Furthermore, the excitation device that can realize multi-dimensional vibration also includes a braking structure, which is set between the base and the vibration table. The braking structure has a braking state that restricts the vibration table from rising and falling relative to the base, and a free state that releases the vibration table.

[0008] Furthermore, the base is provided with multiple guide rods, which are spaced apart along the circumference of the base. The vibration table is slidably mounted on the multiple guide rods. The braking structure is located between the guide rods and the vibration table. When the braking structure is in the braking state, it clamps the guide rods. When the braking structure is in the free state, it separates from the guide rods.

[0009] Furthermore, the braking structure includes: a brake block, disposed on a vibration table, the brake block having a brake hole and an opening passing through the brake block and communicating with the brake hole, a guide rod passing through the brake hole; a first linear motor, including a first cylinder and a first motor shaft, the first cylinder being disposed on the brake block, the first motor shaft passing through the end of the brake block with the opening; a clamping block, disposed at the end of the first motor shaft away from the first cylinder and abutting against the brake block, the first cylinder being drivenly connected to the first motor shaft to control the extension and retraction of the first motor shaft, so that the braking structure switches between a braking state and a free state.

[0010] Furthermore, the first driving component includes: a first motor, mounted on a base; a rotating drum, rotatably mounted on the base about its vertical axis, the first motor being driven to drive the rotating drum to rotate; and a lifting screw, the upper end of which is fixedly connected to the vibration table, and the lower end of which extends into the rotating drum and engages with the rotating drum threadedly.

[0011] Furthermore, the second driving component includes: a second motor, mounted on the vibration table; a worm gear, with the motor drivingly connected to the first end of the worm gear, and the second end of the worm gear passing through the vibration table; a turntable, rotatably mounted on the vibration table, with an exciter mounted on the turntable, and the turntable having teeth that mesh with the worm gear, the worm gear meshing with the teeth of the turntable to drive the turntable to rotate.

[0012] Furthermore, the vibration table is provided with a limiting structure that abuts against the turntable. The limiting structure has a limiting state that restricts the rotation of the turntable relative to the vibration table and an unlocking state.

[0013] Furthermore, the limiting structure includes: a second linear motor, comprising a second cylinder and a second motor shaft, the second cylinder being mounted on the vibration table, the axis of the second motor shaft being perpendicular to the axis of the turntable, the second cylinder being drivenly connected to the second motor shaft to drive the second motor shaft to extend and retract; and a limiting block, connected to the second motor shaft, the second cylinder being drivenly connected to the second motor shaft to control the extension and retraction of the second motor shaft, so that the limiting structure switches between a limiting state and an unlocking state.

[0014] Furthermore, the vibration table is provided with positioning holes, and the excitation device that can realize multi-dimensional vibration also includes a first bearing. The outer wall of the first bearing is interference-fitted with the inner wall of the positioning hole. The turntable is provided with a mounting frustum, which is fastened to the inner wall of the first bearing.

[0015] Furthermore, multiple second bearings are provided on the vibration table corresponding to multiple guide rods, and the guide rods pass through the second bearings and slide in cooperation with the second bearings.

[0016] The present invention provides a multi-dimensional vibration excitation device comprising a base, a lifting assembly, and a vibration assembly. The base has a workpiece connecting part for connection with the workpiece, facilitating connection and fixation. A first driving member drives a vibration table to be movably mounted above the base, and a vibrator is rotatably mounted on the vibration table. A second driving member is connected to the vibrator and drives it to rotate along a vertical axis. Under the action of the second driving member and the vibrator table, the vibrator provides excitation force to eliminate internal stress in the workpiece. The second driving member drives the vibrator to rotate, enabling omnidirectional vibration of the workpiece connected to the base. When the vibrator rotates, the excitation force can vibrate the workpiece in different dimensions. Furthermore, as the vibrator rotates, the excitation force can also vibrate the workpiece in different dimensions, improving the vibration aging treatment effect on larger workpieces. Under the action of the first driving component and the vibration table, the vibration table can be raised and lowered, thereby changing the distance between the vibration table and the base, and thus changing the lever arm of the excitation force transmitted from the vibration table to the base. When the distance between the vibration table and the base is large, the lever arm increases, which in turn increases the excitation force. When the distance between the vibration table and the base is small, the excitation force decreases. This ensures that the magnitude of the excitation force can be changed when the distance between the vibration table and the base is changed, ensuring that the workpiece can be subjected to vibration aging treatment, thereby eliminating the internal stress of the workpiece and improving the structural reliability and practicality of the excitation device. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of the excitation device provided according to an embodiment of the present invention is shown;

[0019] Figure 2 A cross-sectional view of the excitation device provided according to an embodiment of the present invention is shown;

[0020] Figure 3 It shows Figure 2 Sectional view at point AA;

[0021] Figure 4 It shows Figure 2 Sectional view at point BB.

[0022] The above figures include the following reference numerals:

[0023] 10. Base; 11. Workpiece connecting part; 12. Guide rod;

[0024] 20. Lifting assembly; 21. Vibration table; 211. Positioning hole; 22. First driving component; 221. First motor; 222. Lifting screw;

[0025] 30. Vibration assembly; 31. Vibrator; 32. Second drive component; 321. Second motor; 322. Worm gear; 323. Turntable;

[0026] 40. Brake structure; 41. Brake block; 411. Brake hole; 412. Opening; 42. First linear motor; 421. First cylinder; 422. First motor shaft; 43. Clamping block;

[0027] 50. Limiting structure; 51. Second linear motor; 511. Second cylinder; 512. Second motor shaft; 52. Limiting block;

[0028] 60. First bearing. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1 to 4 As shown, this embodiment of the invention provides a vibration excitation device capable of realizing multi-dimensional vibration. The vibration excitation device capable of realizing multi-dimensional vibration includes a base 10, a lifting assembly 20, and a vibration assembly 30. The base 10 has a workpiece connecting part 11. The lifting assembly 20 includes a vibration table 21 and a first driving member 22. The vibration table 21 is movably and vertically disposed above the base 10. The first driving member 22 is drivenly connected to the vibration table 21 to drive the vibration table 21 to move up and down. The vibration assembly 30 includes a vibrator 31 and a second driving member 32. The vibrator 31 is rotatably disposed on the vibration table 21 about a vertical axis. The second driving member 32 is drivenly connected to the vibrator 31 to drive the vibrator 31 to rotate.

[0031] The excitation device for multi-dimensional vibration provided in this embodiment includes a base 10, a lifting assembly 20, and a vibration assembly 30. The base 10 is provided with a workpiece connecting part 11, which facilitates connection and fixation by connecting the workpiece to the workpiece. A first driving member 22 drives a vibration table 21 to be vertically and flexibly positioned above the base 10. A vibrator 31 is rotatably mounted on the vibration table 21. The second driving member 32 is driven by the vibrator 31, thereby driving the vibrator 31 along the vertical axis. The line rotates, so that under the action of the second driving member 32 and the vibrator 31, the vibrator 31 can provide excitation force, thereby eliminating the internal stress of the workpiece. The second driving member 32 can drive the vibrator 31 to rotate, thereby vibrating the workpiece connected to the base 10 in all directions. When the vibrator 31 rotates, the excitation force can vibrate the workpiece in different dimensions. Thus, when the vibrator 31 rotates, the excitation force can also vibrate the workpiece in different dimensions, improving the effect of vibration aging treatment for larger workpieces. Under the action of the first driving component 22 and the vibration table 21, the vibration table 21 can be raised and lowered, thereby changing the distance between the vibration table 21 and the base 10, and thus changing the lever arm of the excitation force transmitted from the vibration table 21 to the base 10. When the distance between the vibration table 21 and the base 10 is large, the lever arm increases, which in turn increases the excitation force. When the distance between the vibration table 21 and the base 10 is small, the excitation force decreases. This ensures that the magnitude of the excitation force can be changed when the distance between the vibration table 21 and the base 10 is changed, ensuring that the workpiece is subjected to vibration aging treatment, thereby eliminating the internal stress of the workpiece and improving the structural reliability and practicality of the excitation device.

[0032] like Figure 1 and Figure 2 As shown, the excitation device capable of multi-dimensional vibration also includes a braking structure 40, which is disposed between the base 10 and the vibration table 21. The braking structure 40 has a braking state that restricts the vibration table 21 from rising and falling relative to the base 10, and a free state that releases the vibration table 21. Using the above structure, by setting the braking structure 40 between the base 10 and the vibration table 21, the braking structure 40 can restrict the vibration table 21 from rising and falling relative to the base 10, as well as the free state that releases the vibration table 21. This facilitates locking the position of the vibration table 21 relative to the base 10, making the control method simple and convenient, and the vibration state more stable.

[0033] like Figure 1 and Figure 2As shown, a plurality of guide rods 12 are provided on the base 10, and the guide rods 12 are spaced apart circumferentially along the base 10. The vibration table 21 is slidably mounted on the guide rods 12. A brake structure 40 is disposed between the guide rods 12 and the vibration table 21. When the brake structure 40 is in the braking state, it clamps the guide rods 12. When the brake structure 40 is in the free state, it separates from the guide rods 12. With the above structure, by providing a plurality of guide rods 12 on the base 10, the vibration table 21 is slidably mounted on the plurality of guide rods 12. The first driving member 22 drives the vibration table 21 to rise and fall on the guide rods 12. When it is necessary to limit and fix the vibration table 21, the brake structure 40 is controlled to switch from the free state to the braking state, so that the brake structure 40 can clamp the guide rods 12, thereby fixing the vibration table 21. When it is necessary to raise and lower the vibration table 21, the brake structure 40 separates from the guide rods 12, thereby allowing the vibration table 21 to slide relative to the guide rods 12.

[0034] like Figure 2 and Figure 4As shown, the brake structure 40 includes a brake block 41, a first linear motor 42, and a clamping block 43. The brake block 41 is mounted on the vibration table 21 and has a brake hole 411 and an opening 412 that passes through the brake block 41 and communicates with the brake hole 411. A guide rod 12 passes through the brake hole 411. The first linear motor 42 includes a first cylinder 421 and a first motor shaft 422. The first cylinder 421 is mounted on the brake block 41, and the first motor shaft 422 passes through one end of the brake block 41 with the opening 412. The clamping block 43 is mounted on the end of the first motor shaft 422 away from the first cylinder 421 and abuts against the brake block 41. The first cylinder 421 and the first motor shaft 422 are driven to control the extension and retraction of the first motor shaft 422, so that the brake structure 40 switches between a braking state and a free state. Using the above structure, the brake block 41 is connected and fixed to the vibration table 21. The guide rod 12 passes through the brake hole 411 on the brake block 41. An opening 412 is provided on the brake block 41. The first cylinder 421 of the first linear motor 42 is mounted on the brake block 41. The first motor shaft 422 passes through the end of the brake block 41 with the opening 412. A clamping block 43 is provided at the end of the first motor shaft 422 away from the first cylinder 421. The clamping block 43 abuts against the brake block 41. When it is necessary to put the brake structure 40 into the braking position... When the brake structure 40 is in a free state, the first motor shaft 422 is driven to retract, thereby causing the clamping block 43 to apply force to the brake block 41, which reduces the gap of the opening 412 on the brake block 41 and allows the brake block 41 to clamp the guide rod 12. When the brake structure 40 needs to be in a free state, the first motor shaft 422 is driven to extend, which increases the gap of the opening 412 on the brake block 41, allowing the brake hole 411 on the brake block 41 to slide with the guide rod 12, making the clamping method simple and easy to operate.

[0035] like Figure 1 and Figure 2As shown, the first driving component 22 includes a first motor 221, a rotating drum, and a lifting screw 222. The first motor 221 is mounted on the base 10, and the rotating drum is rotatably mounted on the base 10 about its vertical axis. The first motor 221 is driven by the rotating drum to drive its rotation. The upper end of the lifting screw 222 is fixedly connected to the vibration table 21, and the lower end of the lifting screw 222 extends into the rotating drum and is threaded into the rotating drum. With the above structure, the first motor 221 can drive the rotating drum to rotate. The rotating drum is rotatably mounted on the base 10 about its vertical axis, and the lower end of the lifting screw 222 extends into the rotating drum and is threaded into the inner wall of the rotating drum. The upper end of the lifting screw 222 is fixedly connected to the vibration table 21. This ensures that when the rotating drum rotates and is threaded into the lifting screw 222, the lifting screw 222 only moves up and down without rotating, making the driving method reliable.

[0036] like Figure 2 and Figure 3 As shown, the second driving component 32 includes a second motor 321, a worm gear 322, and a turntable 323. The second motor 321 is mounted on the vibration table 21 and is drivenly connected to the first end of the worm gear 322. The second end of the worm gear 322 passes through the vibration table 21. The turntable 323 is rotatably mounted on the vibration table 21. The exciter 31 is mounted on the turntable 323. The turntable 323 is provided with teeth that mesh with the worm gear 322. The worm gear 322 meshes with the teeth of the turntable 323 to drive the turntable 323 to rotate. With the above structure, a second motor 321 is installed on the vibration table 21. The second motor 321 drives the worm gear 322 to rotate. The teeth of the worm gear 322 mesh with those of the turntable 323. A vibrator 31 is installed on the turntable 323. This allows the vibrator 31 to rotate when the turntable 323 is driven to rotate, thereby providing excitation force to the workpiece in multiple dimensions. This simplifies the drive structure of the turntable 323 and improves the structural reliability of the second drive component 32.

[0037] like Figure 3 As shown, the vibration table 21 is provided with a limiting structure 50 that abuts against the turntable 323. The limiting structure 50 has a limiting state that restricts the rotation of the turntable 323 relative to the vibration table 21, and an unlocked state. By adopting the above structure, and by setting the limiting structure 50 to cooperate with the turntable 323, the rotation angle of the turntable 323 can be limited.

[0038] like Figure 3As shown, the limiting structure 50 includes a second linear motor 51 and a limiting block 52. The second linear motor 51 includes a second cylinder 511 and a second motor shaft 512. The second cylinder 511 is mounted on the vibration table 21. The axis of the second motor shaft 512 is perpendicular to the axis of the turntable 323. The second cylinder 511 is driven to the second motor shaft 512 to drive the second motor shaft 512 to extend and retract. The limiting block 52 is connected to the second motor shaft 512. The second cylinder 511 is driven to the second motor shaft 512 to control the extension and retraction of the second motor shaft 512, so that the limiting structure 50 switches between a limiting state and an unlocked state. With the above structure, the second cylinder 511 of the second linear motor 51 is set on the vibration table 21, and the second motor shaft 512 is connected to the limiting block 52. When the second linear motor 51 controls the second motor shaft 512 to extend, the limiting block 52 can extend and abut against the teeth of the turntable 323, thereby restricting the rotation of the turntable and playing the role of limiting the turntable 323.

[0039] like Figure 2 As shown, the vibration table 21 is provided with a positioning hole 211. The excitation device that enables multi-dimensional vibration also includes a first bearing 60. The outer wall of the first bearing 60 is interference-fitted with the inner wall of the positioning hole 211. The turntable 323 is provided with a mounting frustum, which is fastened to the inner wall of the first bearing 60. With the above structure, by providing the positioning hole 211 on the vibration table 21, it is easy to position the turntable 323 through the mounting frustum. The outer wall of the first bearing 60 is fastened to the inner wall of the positioning hole 211, and the inner wall of the first bearing 60 is fastened to the mounting frustum, thus facilitating installation and fixation.

[0040] It should be noted that in this embodiment, the outer side wall of the first bearing 60 is interference-fitted with the inner side wall of the positioning hole 211, and the inner side wall of the first bearing 60 is interference-fitted with the mounting frustum.

[0041] like Figure 2 As shown, multiple second bearings are provided on the vibration table 21 corresponding to multiple guide rods 12, and the guide rods 12 pass through the second bearings and slide in cooperation with the second bearings. With the above structure, by providing second bearings on the vibration table 21 corresponding to the guide rods 12, it is convenient for the guide rods 12 and the second bearings to slide in cooperation.

[0042] It should be noted that the exciter includes a vibration box and a third motor. The vibration box is set on the vibration table, and the third motor is set on the vibration box. The third motor shaft passes through the vibration box. An eccentric oscillator is set inside the vibration box. The third motor shaft is connected to the eccentric oscillator to control the rotation of the eccentric oscillator, which facilitates the provision of excitation force.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0045] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0046] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0047] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vibration excitation device capable of achieving multi-dimensional vibration, characterized in that, The excitation device capable of achieving multi-dimensional vibration includes: The base (10) has a workpiece connecting part (11); The lifting assembly (20) includes a vibration table (21) and a first drive member (22). The vibration table (21) is vertically and vertically disposed above the base (10). The first drive member (22) is drivenly connected to the vibration table (21) to drive the vibration table (21) to lift. The vibration assembly (30) includes an exciter (31) and a second drive member (32). The exciter (31) is rotatably mounted on the vibration table (21) about a vertical axis. The second drive member (32) is driven to the exciter (31) to drive the exciter (31) to rotate. The second drive unit (32) includes: The second motor (321) is mounted on the vibration table (21); The worm (322) is driven by the second motor (321) connected to the first end of the worm (322), and the second end of the worm (322) is inserted into the vibration table (21). A turntable (323) is rotatably mounted on the vibration table (21), and an exciter (31) is mounted on the turntable (323). The turntable (323) is provided with teeth that cooperate with the worm (322). The worm (322) meshes with the teeth of the turntable (323) to drive the turntable (323) to rotate. The vibration table (21) is provided with a limiting structure (50) that abuts against the turntable (323). The limiting structure (50) has a limiting state that restricts the turntable (323) from rotating relative to the vibration table (21) and an unlocking state.

2. The excitation device capable of realizing multi-dimensional vibration according to claim 1, characterized in that, The excitation device capable of multi-dimensional vibration also includes a braking structure (40), which is disposed between the base (10) and the vibration table (21). The braking structure (40) has a braking state that restricts the vibration table (21) from rising and falling relative to the base (10) and a free state that releases the vibration table (21).

3. The excitation device capable of realizing multi-dimensional vibration according to claim 2, characterized in that, The base (10) is provided with a plurality of guide rods (12), which are spaced apart along the circumference of the base (10). The vibration table (21) is slidably disposed on the plurality of guide rods (12). The brake structure (40) is disposed between the guide rods (12) and the vibration table (21) and is fixedly connected to the vibration table (21). When the brake structure (40) is in the braking state, the brake structure (40) clamps the guide rods (12). When the brake structure (40) is in the free state, the brake structure (40) separates from the guide rods (12).

4. The excitation device capable of realizing multi-dimensional vibration according to claim 3, characterized in that, The braking structure (40) includes: A brake block (41) is provided on the vibration table (21). The brake block (41) has a brake hole (411) and an opening (412) that passes through the brake block (41) and communicates with the brake hole (411). The guide rod (12) passes through the brake hole (411). The first linear motor (42) includes a first cylinder (421) and a first motor shaft (422). The first cylinder (421) is disposed on the brake block (41), and the first motor shaft (422) passes through one end of the brake block (41) where the opening (412) is provided. A clamping block (43) is disposed at the end of the first motor shaft (422) away from the first cylinder (421) and abuts against the brake block (41). The first cylinder (421) is driven to connect with the first motor shaft (422) to control the extension and retraction of the first motor shaft (422) so that the brake structure (40) switches between the braking state and the free state.

5. The excitation device capable of realizing multi-dimensional vibration according to any one of claims 1 to 4, characterized in that, The first driving element (22) includes: The first motor (221) is mounted on the base (10); A rotating drum is rotatably mounted on the base (10) about its vertical axis, and the first motor (221) is driven to drive the rotating drum to rotate. The upper end of the lifting screw (222) is fixedly connected to the vibration table (21), and the lower end of the lifting screw (222) extends into the rotating drum and is threadedly engaged with the rotating drum.

6. The excitation device capable of realizing multi-dimensional vibration according to claim 5, characterized in that, The limiting structure (50) includes: The second linear motor (51) includes a second cylinder (511) and a second motor shaft (512). The second cylinder (511) is mounted on the vibration table (21). The axis of the second motor shaft (512) is perpendicular to the axis of the turntable (323). The second cylinder (511) and the second motor shaft (512) are driven to drive the second motor shaft (512) to extend and retract. The limiting block (52) is connected to the second motor shaft (512), and the second cylinder (511) is driven to connect to the second motor shaft (512) to control the extension and retraction of the second motor shaft (512) so that the limiting structure (50) switches between the limiting state and the unlocking state.

7. The excitation device capable of realizing multi-dimensional vibration according to claim 6, characterized in that, The vibration table (21) is provided with a positioning hole (211). The excitation device that can realize multi-dimensional vibration also includes a first bearing (60). The outer wall of the first bearing (60) is fastened to the inner wall of the positioning hole (211). The turntable (323) is provided with a mounting frustum. The mounting frustum is interference-fitted to the inner wall of the first bearing (60).

8. The excitation device capable of realizing multi-dimensional vibration according to claim 3, characterized in that, The vibration table (21) is provided with multiple second bearings corresponding to multiple guide rods (12), and the guide rods (12) pass through the second bearings and slide in cooperation with the second bearings.

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