An automatic three-axis tilting device for an electric vibration table

Abstract

The present invention discloses a three-axis automatic tilting device for an electric vibration table, which includes a base mechanism, an automatic synchronous lifting mechanism, a slewing mechanism, a vibration table surface mechanism, and an excitation mechanism. A ball screw mechanism capable of driving the excitation mechanism to move horizontally is provided on the base mechanism. The automatic synchronous lifting mechanism is installed on the base mechanism and is used to drive the slewing mechanism to move vertically. The slewing mechanism is used to drive the vibration table surface mechanism to rotate horizontally. The vibration table surface mechanism is used to fix the test piece. The excitation mechanism is used to excite the vibration table surface mechanism, and can realize the rapid flipping of the exciter and the vibration of the exciter at different workstations while ensuring the safety of tilting.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vibration tables, and particularly to a three-axis automatic tilting device for an electric vibration table. Background Art

[0002] Since vibration tables can simulate the vibration environment of test pieces, they are widely used in fields such as aerospace, vehicle engineering, seismic testing, etc., to evaluate and assess the mechanical properties of test pieces under corresponding vibration conditions. In the field of vibration test technology, it is usually necessary to conduct vibration tests on test pieces in three directions. Therefore, it is necessary to provide both vertical and horizontal vibrations to meet the test requirements. One existing vibration test system uses a vibration table in combination with multiple horizontal sliders to conduct vibration tests. After the vibration table and one horizontal slider complete the vibration test, they are disassembled, and then the vibration table is combined with another horizontal slider to conduct the vibration test. This process often involves multiple transports and deployments of vibration table auxiliary equipment, and the process flow is very cumbersome. Another method is to use three vibration tables in combination with one horizontal slider to conduct vibration tests. However, this method greatly increases the test cost due to the use of multiple vibration tables.

[0003] Therefore, there is an urgent need to invent a device that uses a single vibration table in combination with a single exciter to complete the vibration test of test pieces in three directions without complex disassembly and assembly. Summary of the Invention

[0004] Aiming at the above technical deficiencies, the purpose of the present invention is to provide a three-axis automatic tilting device for an electric vibration table.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions:

[0006] The present invention provides a three-axis automatic tilting device for an electric vibration table, including a base mechanism, an automatic synchronous lifting mechanism, a slewing mechanism, a vibration table surface mechanism, and an exciting mechanism. A ball screw mechanism capable of driving the exciting mechanism to move horizontally is provided on the base mechanism. The automatic synchronous lifting mechanism is installed on the base mechanism to drive the slewing mechanism to move vertically. The slewing mechanism is used to drive the vibration table surface mechanism to rotate horizontally. The vibration table surface mechanism is used to fix the test piece to be detected. The exciting mechanism is used to excite the vibration table surface mechanism.

[0007] Preferably, the base mechanism includes a base, a limiting mechanism, linear guides, and sliders. A rectangular slot is provided at the center of the base. The ball screw mechanism includes a ball screw, a ball screw fixed seat, a ball screw support seat, and a servo motor. The ball screw support seat and the fixed seat are fixed on the base corresponding to the two short sides of the rectangular slot. The ball screw is rotatably installed on the ball screw support seat and the fixed seat. One end of the ball screw corresponding to the fixed seat is connected to the servo motor through a coupling, and the servo motor is fixed on the upper surface of the base. The linear guides are symmetrically arranged on both sides of the rectangular slot corresponding to the ball screw mechanism. The limiting mechanism is divided into two groups and symmetrically arranged on both sides of the linear guides. The linear guides are connected to the vibration excitation mechanism through sliders, and the vibration excitation mechanism is threadedly connected to the ball screw.

[0008] Preferably, each group of the limiting mechanisms consists of two limiting blocks with opposite slopes, and the limiting blocks in the same group are staggeredly fixed on the outer side of the linear guides of the base.

[0009] Preferably, a number of equally spaced threaded holes are provided on each limiting block.

[0010] Preferably, the automatic synchronous lifting mechanism includes lifting columns, transmission mechanism I, a transmission shaft, transmission mechanism II, and a servo motor I. The lifting columns are installed on the base mechanism in a matrix. The lifting columns include outer columns, and an inner lifting column is arranged inside the outer columns. The inner lifting column is threadedly connected to a lifting screw, and the inner lifting column can rise or fall along the lifting screw. The top of the inner lifting column is fixedly welded to the slewing mechanism. A worm gear I is provided at the bottom of the lifting screw. The transmission mechanism I includes a transmission box I corresponding to the bottom of the lifting column. A worm gear I connected to the worm gear I is arranged inside the transmission box I. The transmission shaft is arranged between two adjacent lifting columns, and both ends of the transmission shaft are connected to the worm gear I through worm gears II. The transmission mechanism II is installed in the middle of one of the transmission shafts and divides this transmission shaft into a left transmission shaft and a right transmission shaft. The transmission mechanism II includes a transmission box II. A worm gear III for connecting the left and right transmission shafts and a worm gear II corresponding to the worm gear III are installed inside the transmission box II. The worm gear II is connected to the servo motor I through a coupling.

[0011] Preferably, the worm gear I and the worm gear II are arranged with a 90-degree stagger.

[0012] Preferably, the slewing mechanism includes a horizontal movement mechanism, a circular connecting platform, Gear I, a slewing bearing, a square connecting platform, and Servo Motor II. The bottom surface of the square connecting platform is fixedly welded to the automatic synchronous lifting mechanism. The upper part of the square connecting platform is fixed to the circular connecting platform through the slewing support. The circular connecting platform and the slewing bearing are coaxially arranged. The circular connecting platform is fixed to the rotatable outer ring of the slewing support. The inner ring of the slewing support is tightly connected to the square connecting platform. Gear I is installed on the square connecting platform and meshes with the rotatable outer ring of the slewing support. Servo Motor II is installed at the lower part of the square connecting platform to drive Gear I to rotate. The horizontal movement mechanism includes four groups of guide rail slider groups arranged in a cross shape for driving the vibration table mechanism to move horizontally. Each guide rail slider group includes a lower guide rail and an upper guide rail arranged in a cross shape. The lower guide rail and the upper guide rail are connected by sliders that can slide along the lower guide rail and the upper guide rail. The lower guide rails in the guide rail slider groups are arranged corresponding to the center positions of the sides of the circumscribed square of the circular connecting platform 35, and the upper guide rails are arranged corresponding to the center positions of the sides of the vibration table mechanism 4. Circular through holes corresponding to the lower part of the vibration table mechanism are provided at the centers of the circular connecting platform, the inner ring center of the slewing support, and the center of the square connecting platform.

[0013] Preferably, the vibration table mechanism includes a vibration table and a flange coupler. The bottom of the vibration table is fixed to the upper guide rails of the guide rail slider groups. The vibration table is arranged in a square structure, and the center of the vibration table is on the same straight line as the center of the circular connecting platform. The flange coupler is fixed to the two sides of the vibration table arranged at 90 degrees and the bottom surface of the vibration table corresponding to the circular through hole.

[0014] Preferably, the excitation mechanism includes an exciter mechanism, an exciter support frame, and an exciter automatic flipping mechanism. A flange connection disk for connecting with the vibration table mechanism is provided at the center of the upper surface of the exciter mechanism. The exciter mechanism is connected to the exciter support frame through a rotating shaft. The exciter automatic flipping mechanism is installed on the exciter support frame and connected to the rotating shaft to drive the exciter mechanism to rotate. Limit blocks are correspondingly arranged on the exciter mechanism. The limit blocks and the exciter support frame are provided with limit threaded holes that can keep the exciter mechanism horizontal and vertical. The exciter support frame is threadedly connected to the ball screw of the ball screw mechanism. The bottom of the exciter support frame is formed with limit ramp grooves arranged staggeredly corresponding to the limit mechanism on the base mechanism. The bottom of the exciter support frame is fixedly welded to the slider on the base mechanism. A number of threaded holes for fixing to the limit mechanism are provided at the position of the exciter support frame corresponding to the limit ramp grooves.

[0015] Preferably, the vibrator automatic flipping mechanism includes Gear II, Gear III, a flipping shaft, a rotating shaft, and Servo Motor III. Gear II is installed on the flipping shaft and meshes with Gear III. Gear III is installed on the rotating shaft. The rotating shaft is connected to Servo Motor III through a coupling. The flipping shaft is fixed to the rotating shaft to drive the vibrator mechanism to rotate.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The structure of the present invention is simple. It can achieve the rapid flipping of the vibrator and the vibration of the vibrator at different workstations while ensuring the safety of the tilting table.

[0018] 2. The present invention can realize the vibration test of the specimen in three directions only by using a single vibrator and a single vibration tabletop, greatly reducing the test cost and the complexity of the tilting table process.

[0019] 3. The present invention uses a motor as the driving device, which can significantly reduce the burden on the operator, improve the equipment usage efficiency, and at the same time meet the requirements of safety and automatic control. It is especially suitable for the rapid, safe, and reliable flipping of large vibration test systems. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is the front view structural schematic diagram of the present invention;

[0022] Figure 2 is the structural schematic diagram of the base mechanism of the present invention;

[0023] Figure 3 is the structural schematic diagram of the automatic synchronous lifting mechanism of the present invention;

[0024] Figure 4 is the schematic diagram of the principle of the automatic synchronous lifting mechanism of the present invention;

[0025] Figure 5 is the structural schematic diagram of the slewing mechanism of the present invention;

[0026] Figure 6 is the structural schematic diagram of the square connecting platform of the present invention;

[0027] Figure 7 is the structural schematic diagram of the vibration tabletop mechanism of the present invention;

[0028] Figure 8 is a schematic structural diagram of the excitation mechanism of the present invention;

[0029] Figure 9 is a schematic structural diagram of the automatic flipping mechanism of the vibrator of the present invention;

[0030] In the figure: 1. Base mechanism, 2. Automatic synchronous lifting mechanism, 3. Rotary mechanism, 4. Vibration table mechanism, 5. Excitation mechanism, 11. Base, 12. Limiting mechanism, 13. Linear guide rail, 14. Ball screw mechanism, 15. Slide block, 21. Lifting column, 22. Transmission mechanism I, 23. Transmission shaft, 24. Transmission mechanism II, 25. Servo motor I, 31. Horizontal movement mechanism, 32. Circular connecting platform, 33. Gear I, 34. Slewing bearing, 35. Square connecting platform, 36. Servo motor II, 41. Vibration table, 42. Flange coupling, 51. Vibrator mechanism, 52. Vibrator support frame, 53. Automatic flipping mechanism of the vibrator, 531. Gear II, 532. Gear III, 533. Rotating shaft, 534. Rotating shaft, 535. Servo motor III. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] As Figures 1 to 9 shown, this embodiment provides a three-axis automatic tilting device for an electric vibration table, including a base mechanism 1, an automatic synchronous lifting mechanism 2, a rotary mechanism 3, a vibration table mechanism 4, and an excitation mechanism 5. A ball screw mechanism 14 capable of driving the excitation mechanism 5 to move horizontally is provided on the base mechanism 1. The automatic synchronous lifting mechanism 2 is installed on the base mechanism 1 to drive the rotary mechanism 3 to move vertically. The rotary mechanism 3 is used to drive the vibration table mechanism 4 to rotate horizontally. The vibration table mechanism 4 is used to fix the test piece, and the excitation mechanism 5 is used to excite the vibration table mechanism 4.

[0033] As Figure 2As shown, the base mechanism 1 includes a base 11, a limiting mechanism 12, a linear guide rail 13, and a slider 15. A rectangular slot is provided at the center of the base 11. The rectangular slot in this embodiment is not marked in the figure and adopts a structure well-known to those skilled in the art, so it will not be described in detail here. The ball screw mechanism 14 includes a ball screw, a ball screw fixing seat, a ball screw support seat, and a servo motor. The ball screw support seat and the fixing seat are fixed on the base 11 corresponding to the two short sides of the rectangular slot. The ball screw is rotatably installed on the ball screw support seat and the fixing seat. One end of the ball screw corresponding to the fixing seat is connected to the servo motor through a coupling, and the servo motor is fixed on the upper surface of the base 11. The linear guide rails 13 are symmetrically arranged on both sides of the rectangular slot corresponding to the ball screw mechanism 14. The limiting mechanism 12 is divided into two groups and symmetrically arranged on both sides of the linear guide rails 13. Each group consists of two limiting blocks with opposite slopes. The limiting blocks in the same group are staggeredly fixed on the outside of the linear guide rails 13 of the base 11. A number of equally spaced threaded holes are provided on each limiting block. The linear guide rail 13 is connected to the excitation mechanism 5 through the slider 15. The excitation mechanism 5 is threadedly connected to the ball screw. The servo motor can drive the ball screw to rotate, and then drive the excitation mechanism 5 to move along the linear guide rail 13.

[0034] The ball screw, the ball screw fixing seat, the ball screw support seat, and the servo motor in this embodiment adopt existing products or structures well-known to those skilled in the art, and their connections to each other also adopt existing connection methods well-known to those skilled in the art, so they will not be described in detail here.

[0035] As Figures 3 - 4As shown in the figure, the automatic synchronous lifting mechanism 2 includes lifting columns 21, transmission mechanism I 22, transmission shaft 23, transmission mechanism II 24, and servo motor I 25. The lifting columns 21 are arranged in a matrix on the base mechanism 1. The lifting columns 21 include outer columns, and inner lifting columns are arranged inside the outer columns. The inner lifting columns are threadedly connected to lifting lead screws, and the inner lifting columns can rise or fall along the lifting lead screws. The top of the inner lifting columns is fixedly welded to the slewing mechanism 3. A first worm wheel is arranged at the bottom of the lifting lead screw. The transmission mechanism I 22 includes a first transmission box corresponding to the bottom of the lifting column 21. A first worm is arranged in the transmission box and is connected to the first worm wheel. The lifting column 21 is arranged outside the limiting mechanism 12. The transmission shaft 23 is arranged between two adjacent lifting columns 21 to form a "C"-shaped opening structure. The opening end of the "C"-shaped opening structure corresponds to the vibration exciting mechanism 5, without affecting the movement of the vibration exciting mechanism 5 along the ball screw. Both ends of the transmission shaft 23 are connected to the first worm through second worm wheels. The first worm wheel and the second worm wheel are arranged at a 90-degree stagger. The transmission mechanism II 24 is installed in the middle of one of the transmission shafts 23, dividing this transmission shaft 23 into a left transmission shaft and a right transmission shaft. The transmission mechanism II 24 includes a second transmission box. A third worm wheel for connecting the left and right transmission shafts and a second worm corresponding to the third worm wheel are installed in the second transmission box. The second worm is connected to the servo motor I 25 through a coupling.

[0036] The lifting columns 21, transmission mechanism I 22, transmission shaft 23, transmission mechanism II 24, and servo motor I 25 in this embodiment adopt existing products or structures well-known to those skilled in the art, and the connections between them also adopt existing connection methods well-known to those skilled in the art, and will not be described in detail here.

[0037] As Figures 5 - 6As shown in the figure, the slewing mechanism 3 includes a horizontal moving mechanism 31, a circular connecting table 32, a gear I 33, a slewing bearing 34, a square connecting table 35, and a servo motor II 36. The bottom surface of the square connecting table 35 is fixedly welded to the automatic synchronous lifting mechanism 2. The upper part of the square connecting table 35 is fixed to the circular connecting table 32 through the slewing bearing 34. The circular connecting table 32 and the slewing bearing 34 are coaxially arranged. The circular connecting table 32 is fixed to the rotatable outer ring of the slewing bearing 34. The inner ring of the slewing bearing 34 is tightly connected to the square connecting table 35. The gear I 33 is installed on the square connecting table 35 and meshes with the rotatable outer ring of the slewing bearing 34. The servo motor II 36 is installed at the lower part of the square connecting table 35 and is used to drive the gear I 33 to rotate. The horizontal moving mechanism 31 includes four groups of guide rail slider groups arranged in a cross shape for driving the vibration table mechanism 4 to move horizontally. Each guide rail slider group includes a lower guide rail and an upper guide rail arranged in a cross shape. The lower guide rail and the upper guide rail are connected by a slider that can slide along the lower guide rail and the upper guide rail. The lower guide rails in the guide rail slider groups are arranged corresponding to the center positions of the sides of the circumscribed square of the circular connecting table 35, and the upper guide rails are arranged corresponding to the center positions of the sides of the vibration table mechanism 4. Circular through holes corresponding to the lower part of the vibration table mechanism 4 are provided at the center of the circular connecting table 35, the center of the inner ring of the slewing bearing 34, and the center of the square connecting table 35.

[0038] As Figure 7 shown in the figure, the vibration table mechanism 4 includes a vibration table 41 and a flange coupling 42. The bottom of the vibration table 41 is fixed to the upper guide rail in the guide rail slider group. The vibration table 41 is arranged in a square structure, and the center of the vibration table 41 is on the same straight line as the center of the circular connecting table 32. The flange coupling 42 is fixed to the two sides of the vibration table 41 arranged at 90 degrees and the bottom surface of the vibration table 41 corresponding to the circular through hole.

[0039] As Figures 8 - 9As shown in the figure, the excitation mechanism 5 includes an exciter mechanism 51, an exciter support frame 52, and an exciter automatic flipping mechanism 53. A flange connection disk for connecting with the vibration table mechanism 4 is provided at the center of the upper surface of the exciter mechanism 51. The exciter mechanism 51 is connected to the exciter support frame 52 through a rotating shaft. The exciter automatic flipping mechanism 53 is installed on the exciter support frame 52 and connected to the rotating shaft for driving the exciter mechanism 51 to rotate. Limit blocks are correspondingly provided on the exciter mechanism 51, and limit threaded holes capable of keeping the exciter mechanism 51 horizontal and vertical are correspondingly provided between the limit blocks and the exciter support frame 52. The exciter support frame 52 is in threaded connection with the ball screw of the ball screw mechanism 14. A limit ramp groove arranged staggeredly corresponding to the limit mechanism 12 on the base mechanism 1 is formed at the bottom of the exciter support frame 52. The bottom of the exciter support frame 52 is fixedly welded to the slider 15 on the base mechanism 1. A number of threaded holes for fixing with the limit mechanism 12 are provided at the position of the exciter support frame 52 corresponding to the limit ramp groove. The exciter automatic flipping mechanism 53 includes a gear II 531, a gear III 532, a flipping shaft 533, a rotating shaft 534, and a servo motor III 535. The gear II 531 is installed on the flipping shaft 533 and meshes with the gear III 532. The gear III 532 is installed on the rotating shaft 534. The rotating shaft 534 is connected to the servo motor III 535 through a coupling. The flipping shaft 533 is fixed to the rotating shaft for driving the exciter mechanism 51 to rotate.

[0040] The gear II 531, gear III 532, flipping shaft 533, rotating shaft 534, servo motor III 535, exciter mechanism 51, exciter support frame 52, and coupling in this embodiment all adopt existing products or structures well-known to those skilled in the art, and their connections with each other also adopt existing connection methods well-known to those skilled in the art, and will not be described in detail here.

[0041] Working principle: When performing horizontal longitudinal vibration tests, first use the ball screw mechanism 14 to move the excitation mechanism 5 to the horizontal vibration station, and then use the exciter automatic flipping mechanism 53 to flip the exciter to the horizontal station, that is, to be horizontal with the vibration table 41. At this time, the orientation of the vibration table 41 corresponding to the excitation mechanism 5 is horizontal longitudinal. Use the limit blocks on the exciter mechanism and the limit holes on the exciter support frame to fix the exciter in the horizontal position and fix the excitation mechanism 5 to the limit mechanism 12 of the base mechanism 1 through bolts. Finally, connect the excitation mechanism 5 to the vibration table mechanism 4 through a flange, and the horizontal longitudinal vibration test can be realized.

[0042] When conducting horizontal lateral vibration tests, first use the rotary mechanism 2 to rotate the vibration table mechanism 4 to the horizontal lateral vibration station, that is, rotate the vibration table 41 clockwise or counterclockwise by 90 degrees based on the horizontal longitudinal vibration test position, and then connect the excitation mechanism 5 to the vibration table mechanism 4 through a flange to achieve horizontal lateral vibration tests;

[0043] When conducting vertical vibration tests, first use the automatic synchronous lifting mechanism 2 to raise the vibration table mechanism 4 to a height greater than that of the excitation mechanism 5. Secondly, use the exciter automatic flipping mechanism to flip the exciter to the vertical station and fix the exciter in the vertical position using the limit block on the exciter mechanism and the limit hole on the exciter support frame. Then use the horizontal lateral movement mechanism to move the excitation mechanism 5 to the vertical vibration station and fix the excitation mechanism 5 to the base limit mechanism using the limit mechanism; finally, remove the bolts connecting the square connection platform and the outer ring of the slewing bearing, continue to adjust the synchronous lifting mechanism 2 to lower the vibration table mechanism 4 to correspond to the excitation mechanism 5, and connect the excitation mechanism 5 to the vibration table mechanism 4 through a flange to achieve vertical vibration tests.

[0044] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and its equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. An automatic three-axis tilting device for an electric vibration table, characterized in that, It includes a base mechanism (1), an automatic synchronous lifting mechanism (2), a slewing mechanism (3), a vibrating table mechanism (4), and an exciting mechanism (5). A ball screw mechanism (14) capable of driving the exciting mechanism (5) to move horizontally is provided on the base mechanism (1). The automatic synchronous lifting mechanism (2) is installed on the base mechanism (1) to drive the slewing mechanism (3) to move vertically. The slewing mechanism (3) is used to drive the vibrating table mechanism (4) to rotate horizontally. The vibrating table mechanism (4) is used to fix the workpiece to be detected. The exciting mechanism (5) is used to excite the vibrating table mechanism (4). The base mechanism (1) includes a base (11), a limiting mechanism (12), a linear guide rail (13), and a slider (15). A rectangular slot is provided at the center of the base (11). The ball screw mechanism (14) includes a ball screw, a ball screw fixing seat, a ball screw support seat, and a servo motor. The ball screw support seat and the fixing seat are fixed on the base (11) corresponding to the two short sides of the rectangular slot. The ball screw is rotatably installed on the ball screw support seat and the fixing seat. One end of the ball screw corresponding to the fixing seat is connected to the servo motor through a coupling. The servo motor is fixed on the upper surface of the base (11).The linear guide rails (13) are symmetrically arranged on both sides of the rectangular slot and correspond to the ball screw mechanism (14); the limit mechanism (12) is divided into two groups and symmetrically arranged on both sides of the linear guide rail (13); the linear guide rail (13) is connected to the excitation mechanism (5) through a slider (15); the excitation mechanism (5) is threadedly connected to the ball screw; the excitation mechanism (5) comprises an exciter mechanism (51), an exciter support frame (52), and an exciter automatic flipping mechanism (53); the upper portion of the exciter mechanism (51) is A flange connection plate for connecting to a vibration table mechanism (4) is provided at the center of the surface; the exciter mechanism (51) is connected to an exciter support frame (52) via a rotating shaft; the exciter automatic flipping mechanism (53) is mounted on the exciter support frame (52) and connected to the rotating shaft for driving the exciter mechanism (51) to rotate; a limit block is provided on the exciter mechanism (51); the limit block and the exciter support frame (52) are provided with limit screws capable of keeping the exciter mechanism (51) horizontal and vertical. The vibrator support frame (52) is threadedly connected to the ball screw of the ball screw mechanism (14); the bottom of the vibrator support frame (52) is formed with a limiting slope groove that is staggered and arranged corresponding to the limiting mechanism (12) on the base mechanism (1); the bottom of the vibrator support frame (52) is welded and fixed to the slider (15) on the base mechanism (1); a plurality of threaded holes for fixing to the limiting mechanism (12) are provided at positions on the vibrator support frame (52) corresponding to the limiting slope groove; and the vibrator The automatic flipping mechanism (53) comprises a gear II (531), a gear III (532), a flipping shaft (533), a rotating shaft (534), and a servo motor III (535). The gear II (531) is mounted on the flipping shaft (533) and meshes with the gear III (532). The gear III (532) is mounted on the rotating shaft (534). The rotating shaft (534) is connected to the servo motor III (535) via a coupling. The flipping shaft (533) is fixed to the rotating shaft and is used to drive the exciter mechanism (51) to rotate. ; 2. The three-axis automatic tilting device of an electric vibration table according to claim 1, characterized in that, Each of the limiting mechanisms (12) is composed of two limiting blocks with opposite slopes, and the limiting blocks in the same group are staggeredly fixed on the outer side of the linear guide rail (13) of the base (11).

3. The triaxial automatic tilting device of an electric vibration table according to claim 2, characterized in that, A number of equally spaced threaded holes are provided on each limiting block.

4. The three-axis automatic tilting device of an electric vibration table according to claim 1, characterized in that, The automatic synchronous lifting mechanism (2) includes a lifting column (21), a transmission mechanism I (22), a transmission shaft (23), a transmission mechanism II (24), and a servo motor I (25). The lifting columns (21) are installed on the base mechanism (1) in a matrix. The lifting column (21) includes an outer column, and an inner lifting column is arranged inside the outer column. The inner lifting column is threadedly connected with a lifting lead screw, and the inner lifting column can rise or fall along the lifting lead screw. The top of the inner lifting column is fixedly welded to the slewing mechanism (3). A first worm wheel is arranged at the bottom of the lifting lead screw. The transmission mechanism I (22) includes a first transmission box corresponding to the bottom of the lifting column (21). A first worm is arranged in the first transmission box and is connected to the first worm wheel. The transmission shaft (23) is arranged between two adjacent lifting columns (21). Both ends of the transmission shaft (23) are connected to the first worm through second worm wheels. The transmission mechanism II (24) is installed in the middle of one of the transmission shafts (23) and divides this transmission shaft (23) into a left transmission shaft and a right transmission shaft. The transmission mechanism II (24) includes a second transmission box. A third worm wheel for connecting the left and right transmission shafts and a second worm corresponding to the third worm wheel are installed in the second transmission box. The second worm is connected to the servo motor I (25) through a coupling.

5. The triaxial automatic tilting device of an electric vibration table according to claim 4, characterized in that The first worm wheel and the second worm wheel are arranged staggeredly at 90 degrees.

6. The three-axis automatic tilting device of an electric vibration table according to claim 1, characterized in that, The slewing mechanism (3) includes a horizontal movement mechanism (31), a circular connecting platform (32), a gear I (33), a slewing bearing (34), a square connecting platform (35), and a servo motor II (36). The bottom surface of the square connecting platform (35) is fixedly welded to the automatic synchronous lifting mechanism (2). The upper part of the square connecting platform (35) is fixed to the circular connecting platform (32) through the slewing bearing (34). The circular connecting platform (32) and the slewing bearing (34) are coaxially arranged. The circular connecting platform (32) is fixed to the rotatable outer ring of the slewing bearing (34). The inner ring of the slewing bearing (34) is tightly connected to the square connecting platform (35). The gear I (33) is installed on the square connecting platform (35) and meshes with the rotatable outer ring of the slewing bearing (34). The servo motor II (36) is installed at the lower part of the square connecting platform (35) for driving the gear I (33) to rotate. The horizontal movement mechanism (31) includes four groups of guide rail slider groups arranged in a cross shape for driving the vibration table mechanism (4) to move horizontally. Each guide rail slider group includes a lower guide rail and an upper guide rail arranged in a cross shape. The lower guide rail and the upper guide rail are connected by sliders that can slide along the lower guide rail and the upper guide rail. The lower guide rails of the guide rail slider groups are arranged corresponding to the central positions of the sides of the circumscribed square of the circular connecting platform (32), and the upper guide rails are arranged corresponding to the central positions of the sides of the vibration table mechanism (4). Circular through holes corresponding to the lower part of the vibration table mechanism (4) are provided at the center of the circular connecting platform (32), the center of the inner ring of the slewing bearing (34), and the center of the square connecting platform (35).

7. The three-axis automatic tilting device of an electric vibration table according to claim 6, characterized in that, The vibration table mechanism (4) includes a vibration table (41) and a flange coupler (42). The bottom of the vibration table (41) is fixed to the upper guide rails of the guide rail slider groups. The vibration table (41) is arranged in a square structure, and the center of the vibration table (41) is on the same straight line as the center of the circular connecting platform (32). The flange coupler (42) is fixed to two sides of the vibration table (41) arranged at 90 degrees and the bottom surface of the vibration table (41) corresponding to the circular through hole.

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