Five-axis linkage machine tool base multi-stage vibration isolation system

Abstract

The invention relates to the field of five-axis linkage machine tools, and discloses a five-axis linkage machine tool base multi-stage vibration isolation system which comprises a machine base, a milling frame is arranged on the upper surface of the machine base, a first U-shaped block is fixedly connected to the interior of the machine base, and a motor is fixedly connected to the outer wall of the first U-shaped block; the output end of the motor is rotationally connected to the interior of the first U-shaped block and fixedly connected with a worm, the outer wall of the worm is rotationally connected to the interior of the first U-shaped block, the tooth end of the worm is connected with a worm gear in a meshed mode, and the inner wall of the worm gear is fixedly connected with a rotating shaft. The first-stage vibration isolation mechanism dissipates vibration energy through a damper so as to reduce the vibration amplitude and suppress resonance, the L-shaped supporting legs and the supporting plates are used for expanding the supporting area, uniformizing load distribution and enhancing the structural stability, meanwhile, the first-stage vibration isolation mechanism is matched with the second-stage vibration isolation mechanism to form a multi-stage vibration isolation system, middle vibration is suppressed, and precision transmission is guaranteed; and the processing quality and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of five-axis linkage machine tools, and specifically to a multi-stage vibration isolation system for the base of a five-axis linkage machine tool. Background Technique

[0002] In fields such as aerospace, automotive manufacturing, and mold processing, five-axis linkage machine tools undertake the precision machining tasks of complex curved parts, and their machining accuracy requirements reach the micron level or even higher. External environmental vibrations such as equipment operation, foundation settlement, and traffic interference, as well as internal cutting force fluctuations, will significantly affect the machining stability.

[0003] Common vibration reduction means in the prior art include rubber vibration isolation pads that absorb vibration energy through elastic materials, which are low-cost and easy to install, but have poor attenuation effects on high-frequency vibrations. Air spring vibration isolation systems use the elastic characteristics of compressed air to achieve vibration reduction, which can effectively isolate low-frequency vibrations, but the system complexity is high and continuous air supply is required. Hydraulic dampers dissipate vibration energy through the viscous resistance of liquids, which have a certain effect on broadband vibrations, but there is a risk of oil leakage and high temperature sensitivity. The combined vibration isolation platform combines the composite structure of rubber and metal springs, taking into account low-frequency and high-frequency vibration reduction, but the vibration reduction efficiency in each frequency band is not balanced. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a multi-stage vibration isolation system for the base of a five-axis linkage machine tool, which solves the problems that the rubber vibration isolation pads in the prior art are prone to aging and the stiffness changes significantly with temperature, the air spring system requires additional air sources and has a slow response speed, the hydraulic damper has a high maintenance cost and there is a risk of environmental pollution, and the combined platform is difficult to achieve optimal vibration reduction in the full frequency band due to the structural coupling causing the transfer of vibration energy between frequency bands.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A multi-stage vibration isolation system for the base of a five-axis linkage machine tool, including a machine base, a milling frame is arranged on the upper surface of the machine base, a U-shaped block one is fixedly connected inside the machine base, a motor is fixedly connected to the outer wall of the U-shaped block one, the output end of the motor is rotationally connected inside the U-shaped block one and fixedly connected with a worm, the outer wall of the worm is rotationally connected inside the U-shaped block one, the tooth end of the worm is meshed with a worm gear, a rotating shaft is fixedly connected to the inner wall of the worm gear, a bevel gear one is fixedly connected to the outer wall of the rotating shaft, a circular gear is fixedly connected to the outer wall of the rotating shaft, a support block is fixedly connected to the outer wall of the machine base, the outer wall of the rotating shaft is rotationally connected inside the support block, a T-shaped through groove is opened inside the machine base, a limiting groove is opened inside the machine base, a primary vibration isolation mechanism is arranged on the outer wall of the machine base, and a secondary vibration isolation mechanism is arranged at the tooth end of the circular gear.

[0006] By adopting the above technical solution, the primary vibration isolation mechanism is arranged on both sides of the machine tool, expanding the support area, adapting to complex working conditions to stabilize both sides. The secondary vibration isolation mechanism utilizes a bracket that can move and rotate in the middle to suppress the vibration in the middle and ensure the precision transmission. The two work together to achieve omnidirectional vibration isolation, improve the processing quality and efficiency. Through mechanical linkage control, when the milling frame starts processing, the primary and secondary vibration isolation mechanisms extend and contact the ground or the support structure to construct a complete vibration isolation system. When the machine stops, they retract to restore the compact form of the machine tool, realizing the efficient operation of "deploy when in use and retract when not in use", and at the same time avoiding the obstruction of fixed positions to the movement or positioning of the machine tool.

[0007] Preferably, the primary vibration isolation mechanism includes a second U-shaped block. The outer wall of the second U-shaped block is fixedly connected to the outer wall of the machine base. A first guide post is fixedly connected inside the second U-shaped block. An internally threaded slider is slidably connected to the outer wall of the first guide post. A threaded rod is rotatably connected inside the second U-shaped block, and the outer wall of the threaded rod is threadedly connected inside the internally threaded slider.

[0008] Preferably, the primary vibration isolation mechanism further includes a second bevel gear. The inner wall of the second bevel gear is fixedly connected to the outer wall of the threaded rod, and the tooth end of the second bevel gear is meshed with the tooth end of the first bevel gear.

[0009] Preferably, the primary vibration isolation mechanism further includes a side plate. The outer wall of the side plate is fixedly connected to the outer wall of the second U-shaped block, and an inclined groove is formed on the outer wall of the side plate.

[0010] Preferably, the primary vibration isolation mechanism further includes a second U-shaped plate. The outer wall of the second U-shaped plate is fixedly connected to the outer wall of the internally threaded slider. A second guide post is fixedly connected inside the second U-shaped plate. A third slider is slidably connected to the outer wall of the second guide post. A connecting block is fixedly connected to the outer wall of the third slider. A sliding column is fixedly connected to the outer wall of the connecting block, and the outer wall of the sliding column is slidably connected to the inner wall of the inclined groove. An L-shaped support leg is fixedly connected to the upper surface of the third slider, and a support plate is fixedly connected to the lower surface of the L-shaped support leg.

[0011] Preferably, the primary vibration isolation mechanism further includes a damper. One end of the damper is fixedly connected to the upper surface of the support plate, and the other end of the damper is fixedly connected to the outer wall of the L-shaped support leg.

[0012] Preferably, the secondary vibration isolation mechanism includes a rack. The tooth end of the rack is meshed with the tooth end of a circular gear. A sliding plate is fixedly connected to the upper surface of the rack. The outer wall of the sliding plate is slidably connected to the inner wall of a T-shaped through groove. A limiting post is fixedly connected to the outer wall of the sliding plate, and the outer wall of the limiting post is slidably connected to the inner wall of a limiting groove.

[0013] Preferably, the secondary vibration isolation mechanism further includes a rotating column, the outer wall of the rotating column is rotatably connected to the inside of the sliding plate, a first round block is fixedly connected to the outer wall of the rotating column, a card slot is formed in the outer wall of the first round block, and a support frame is fixedly connected to the outer wall of the rotating column.

[0014] Preferably, the secondary vibration isolation mechanism further includes a fixed block, the lower surface of the fixed block is fixedly connected to the upper surface of the sliding plate, a clamping column is slidably connected to the inside of the fixed block, the outer wall of the clamping column is slidably connected to the inner wall of the card slot, a pulling block is fixedly connected to the outer wall of the clamping column, a limiting round block is fixedly connected to the outer wall of the clamping column, and a spring is slidably connected to the outer wall of the clamping column.

[0015] Preferably, one end of the spring is fixedly connected to the outer wall of the fixed block, and the other end of the spring is fixedly connected to one end of the limiting round block close to the fixed block.

[0016] Working principle: During the use of the milling frame, the motor is started. The start of the motor causes the worm to rotate, which in turn causes the worm wheel to rotate. The rotation of the worm wheel drives the first bevel gear to rotate through the rotating shaft. During the rotation of the first bevel gear, the second bevel gear drives the threaded rod to rotate inside the second U-shaped block and causes the internally threaded slider to move downward and slide on the outer wall of the first guide post. During the downward movement of the internally threaded slider, the second U-shaped plate is driven to move downward, and then the connecting block drives the sliding column to slide inside the inclined groove formed in the outer wall of the side plate. During the sliding of the sliding column inside the inclined groove, the sliding column drives the L-shaped support leg to drive the third slider to slide outward and downward on the outer wall of the second guide post through the connecting block, and the support plate is driven to contact the ground through the L-shaped support leg.

[0017] During the rotation of the rotating shaft, the rotating shaft also drives the round gear to rotate. The rotation of the round gear drives the sliding plate to move outward and slide inside the T-shaped through groove. During the outward movement of the sliding plate and its sliding inside the T-shaped through groove, the limiting post is also driven to move outward and slide inside the limiting groove. The outward movement of the sliding plate drives the rotating column to move outward, and the outward movement of the rotating column drives the support frame to move outward. When the limiting post slides to the limit inside the limiting groove, the pulling block can be pulled to cause the clamping column to move inward and slide out of the inner wall of the fixed block and out of the inner wall of the card slot. Then, the support frame is rotated by 90 degrees. After the rotation, the pulling block is no longer pulled, and the spring in the contracted state rebounds and resets, driving the clamping column to be inserted into the inner wall of the card slot at the adjusted position through the limiting round block. Through the extension and rotation of the support frame.

[0018] The present invention provides a multi-stage vibration isolation system for the base of a five-axis linkage machine tool. It has the following beneficial effects: 1. In the primary vibration isolation mechanism of the present invention, the vibration energy is dissipated through dampers to reduce the vibration amplitude and suppress resonance. The L-shaped support legs and the support plate are used to expand the support area and evenly distribute the load, enhancing the structural stability. At the same time, it cooperates with the secondary vibration isolation mechanism to form a multi-stage vibration isolation system, suppressing the vibration in the middle and ensuring the precision transmission. The two work together to achieve full-range vibration isolation, optimize the system performance for vibrations of different frequencies and directions, and improve the processing quality and efficiency.

[0019] 2. Through mechanical linkage control, when the milling frame starts processing, the primary vibration isolation mechanism and the secondary vibration isolation mechanism are extended to contact the ground or the support structure, constructing a complete vibration isolation system. When stopped, they are retracted to restore the compact form of the machine tool, achieving efficient operation of "deploying when in use and retracting when not in use", and at the same time avoiding the obstruction of the fixed position to the movement or positioning of the machine tool.

[0020] 3. By extending and rotating the support frame, and moving and rotating outward through the sliding column, the support changes the center of gravity position and the support range of the milling frame. When the milling frame encounters large external force disturbances such as accidental collisions or instantaneous strong cutting force impacts, it can provide a greater anti-overturning moment, reducing the risk of the machine tool overturning and ensuring the stable operation of the machine tool under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the present invention; Figure 2 is a schematic cross-sectional view of the internal structure of the machine base of the present invention; Figure 3 is a schematic partial structure view of the rotating shaft of the present invention; Figure 4 is a schematic partial structure view of the milling frame of the present invention; Figure 5 is Figure 4 an enlarged view at A in Figure 6 is a schematic partial structure view of the rack of the present invention; Figure 7 is a schematic partial structure view of the second U-shaped plate of the present invention; Figure 8 is a schematic partial structure view of the sliding plate of the present invention.

[0022] Among them, 1. Machine base; 2. Milling frame; 3. U-shaped block 1; 4. Motor; 5. Worm; 6. Worm gear; 7. Rotating shaft; 8. Support block; 9. Circular gear; 10. Bevel gear 1; 11. T-shaped through groove; 12. Limit groove; 13. U-shaped block 2; 14. Guide post 1; 15. Internal thread slider; 16. Threaded rod; 17. Bevel gear 2; 18. Side plate; 19. Inclined groove; 20. U-shaped plate 2; 21. Guide post 2; 22. Slide block 3; 23. Connecting block; 24. Slide post; 25. L-shaped support leg; 26. Support plate; 27. Damper; 28. Rack; 29. Sliding plate; 30. Limit post; 31. Rotating column; 32. Circular block 1; 33. Card slot; 34. Support frame; 35. Fixed block; 36. Card post; 37. Pull block; 38. Limit circular block; 39. Spring. Detailed implementation manner

[0023] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings 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.

[0024] Please refer to the attached Figure 1 - attached Figure 8 , the embodiment of the present invention provides a multi-stage vibration isolation system for the base of a five-axis linkage machine tool, including a machine base 1. A milling frame 2 is arranged on the upper surface of the machine base 1. A U-shaped block 1 is fixedly connected inside the machine base 1. An outer wall of the U-shaped block 1 is fixedly connected with a motor 4. An output end of the motor 4 is rotatably connected inside the U-shaped block 1 and fixedly connected with a worm 5. An outer wall of the worm 5 is rotatably connected inside the U-shaped block 1. A tooth end of the worm 5 is meshed and connected with a worm gear 6. An inner wall of the worm gear 6 is fixedly connected with a rotating shaft 7. An outer wall of the rotating shaft 7 is fixedly connected with a bevel gear 10. An outer wall of the rotating shaft 7 is fixedly connected with a circular gear 9. A support block 8 is fixedly connected to an outer wall of the machine base 1. An outer wall of the rotating shaft 7 is rotatably connected inside the support block 8. A T-shaped through groove 11 is opened inside the machine base 1. A limit groove 12 is opened inside the machine base 1. A primary vibration isolation mechanism is arranged on an outer wall of the machine base 1. A secondary vibration isolation mechanism is arranged at a tooth end of the circular gear 9.

[0025] Specifically, when in use, the motor 4 needs to be started. The start of the motor 4 causes the output end of the motor 4 to be rotationally connected inside the first U-shaped block 3 and drives the worm 5 to rotate. Then, the worm 5 rotates inside the first U-shaped block 3 and drives the engaged worm gear 6 to rotate. The rotation of the worm gear 6 drives the first bevel gear 10 to rotate through the rotating shaft 7. The rotation of the first bevel gear 10 can cause the primary vibration isolation mechanism to function. During the rotation of the rotating shaft 7, the rotating shaft 7 also drives the circular gear 9 to rotate. The rotation of the circular gear 9 can cause the secondary vibration isolation mechanism to function. Through mechanical linkage control, when the milling frame 2 starts processing, the primary and secondary vibration isolation mechanisms extend and contact the ground or the support structure to construct a complete vibration isolation system. When stopping, they retract to restore the compact form of the machine tool, achieving efficient operation of "deploying when in use and retracting when not in use". At the same time, it also avoids the obstruction of fixed parts to the movement or positioning of the machine tool. There is no need to disassemble or install vibration isolation components additionally, saving debugging time and improving the usage efficiency of the machine tool. The primary vibration isolation mechanism is arranged on both sides of the machine tool, expanding the support area and buffering vibration to adapt to complex working conditions and stabilize both sides. The secondary vibration isolation mechanism uses a bracket that can move and rotate in the middle to suppress the vibration in the middle. The two work together to achieve all-round vibration isolation, optimize the system performance for vibrations of different frequencies and directions, and improve the processing quality and efficiency.

[0026] Please refer to the attached Figure 1 - attached Figure 7 , the primary vibration isolation mechanism includes the second U-shaped block 13. The outer wall of the second U-shaped block 13 is fixedly connected to the outer wall of the machine base 1. A first guide post 14 is fixedly connected inside the second U-shaped block 13. An internally threaded slider 15 is slidably connected to the outer wall of the first guide post 14. A threaded rod 16 is rotatably connected inside the second U-shaped block 13. The outer wall of the threaded rod 16 is threadedly connected inside the internally threaded slider 15. The primary vibration isolation mechanism further includes a second bevel gear 17. The inner wall of the second bevel gear 17 is fixedly connected to the outer wall of the threaded rod 16. The tooth end of the second bevel gear 17 is meshed with the tooth end of the first bevel gear 10. The primary vibration isolation mechanism further includes a second bevel gear 17. The inner wall of the second bevel gear 17 is fixedly connected to the outer wall of the threaded rod 16. The tooth end of the second bevel gear 17 is meshed with the tooth end of the first bevel gear 10. The primary vibration isolation mechanism further includes a second U-shaped plate 20. The outer wall of the second U-shaped plate 20 is fixedly connected to the outer wall of the internally threaded slider 15. A second guide post 21 is fixedly connected inside the second U-shaped plate 20. A third slider 22 is slidably connected to the outer wall of the second guide post 21. A connecting block 23 is fixedly connected to the outer wall of the third slider 22. A sliding column 24 is fixedly connected to the outer wall of the connecting block 23. The outer wall of the sliding column 24 is slidably connected to the inner wall of the inclined groove 19. An L-shaped support leg 25 is fixedly connected to the upper surface of the third slider 22. A support plate 26 is fixedly connected to the lower surface of the L-shaped support leg 25. The primary vibration isolation mechanism further includes a damper 27. One end of the damper 27 is fixedly connected to the upper surface of the support plate 26. The other end of the damper 27 is fixedly connected to the outer wall of the L-shaped support leg 25.

[0027] Specifically, during the use of the milling frame 2, the motor 4 is started. The start of the motor 4 causes the worm 5 to rotate, which in turn causes the worm gear 6 to rotate. The rotation of the worm gear 6 drives the first bevel gear 10 to rotate through the rotating shaft 7. During the rotation of the first bevel gear 10, the threaded rod 16 is driven to rotate inside the second U-shaped block 13 through the second bevel gear 17, and the internal thread slider 15 is urged to move downward and slide on the outer wall of the first guide post 14. During the downward movement of the internal thread slider 15, the second U-shaped plate 20 is driven to move downward. Furthermore, the connecting block 23 drives the sliding column 24 to slide in the inner wall of the inclined slot 19 opened on the outer wall of the side plate 18. During the process of the sliding column 24 sliding in the inner wall of the inclined slot 19, the sliding column 24 causes the L-shaped support leg 25 to drive the third slider 22 to slide outward and downward on the outer wall of the second guide post 21 through the connecting block 23. The support plate 26 is driven into contact with the ground by the L-shaped support leg 25. The outward movement increases the contact range between the machine base 1 and the ground, forming a wider support base, reducing the center of gravity height of the milling frame 2. Especially when the milling frame 2 is performing high-speed milling or under dynamic loads, the swaying or displacement caused by vibration is reduced. After contacting the ground downward, the support plate 26 distributes the weights of the machine base 1 and the milling frame 2 and the dynamic loads during processing to a larger area, reducing the local pressure. At the same time, when not in use, it can be retracted to the original state, avoiding occupying the ground or surrounding space, which is beneficial to reducing the overall volume of the equipment and facilitating handling, installation, and site planning.

[0028] Please refer to the attached Figure 1 attachment Figure 3 attachment Figure 6 and attachment Figure 8 As shown in Figures [figure numbers not provided in the original, so left as is], the secondary vibration isolation mechanism includes a rack 28. The tooth end of the rack 28 is meshed and connected with the tooth end of the circular gear 9. The upper surface of the rack 28 is fixedly connected with a sliding plate 29. The outer wall of the sliding plate 29 is slidably connected to the inner wall of the T-shaped through slot 11. The outer wall of the sliding plate 29 is fixedly connected with a limiting post 30. The outer wall of the limiting post 30 is slidably connected to the inner wall of the limiting slot 12. The secondary vibration isolation mechanism further includes a rotating column 31. The outer wall of the rotating column 31 is rotatably connected inside the sliding plate 29. The outer wall of the rotating column 31 is fixedly connected with a first circular block 32. A clamping groove 33 is opened on the outer wall of the first circular block 32. The outer wall of the rotating column 31 is fixedly connected with a support frame 34. The secondary vibration isolation mechanism further includes a fixed block 35. The lower surface of the fixed block 35 is fixedly connected to the upper surface of the sliding plate 29. A clamping post 36 is slidably connected inside the fixed block 35. The outer wall of the clamping post 36 is slidably connected to the inner wall of the clamping groove 33. The outer wall of the clamping post 36 is fixedly connected with a pulling block 37. The outer wall of the clamping post 36 is fixedly connected with a limiting circular block 38. A spring 39 is slidably connected to the outer wall of the clamping post 36. One end of the spring 39 is fixedly connected to the outer wall of the fixed block 35, and the other end of the spring 39 is fixedly connected to one end of the limiting circular block 38 close to the fixed block 35.

[0029] Specifically, during the rotation of the rotating shaft 7, the rotating shaft 7 also drives the circular gear 9 to rotate. The rotation of the circular gear 9 drives the sliding plate 29 to move outward along the inner wall of the T-shaped through groove 11 through the rack 28. During the process of the sliding plate 29 moving outward along the inner wall of the T-shaped through groove 11, it also drives the limiting column 30 to move outward along the inner wall of the limiting groove 12. The outward movement of the sliding plate 29 drives the rotating column 31 to move outward, and the outward movement of the rotating column 31 drives the support frame 34 to move outward. When the limiting column 30 slides to the limit of the inner wall of the limiting groove 12, the pulling block 37 can be pulled to cause the clamping column 36 to move inward and slide out of the inner wall of the fixed block 35 and out of the inner wall of the clamping groove 33. Then, the support frame 34 is rotated by 90 degrees. After the rotation, the pulling block 37 is no longer pulled, and the spring 39 in the contracted state rebounds and resets to drive the clamping column 36 to be inserted into the inner wall of the adjusted clamping groove 33 through the limiting round block 38. By extending and rotating the support frame 34, and by moving and rotating the sliding column 24 outward, the support changes the center of gravity position and the support range of the milling frame 2. When the milling frame 2 encounters large external force interference such as accidental collision or instantaneous strong cutting force impact, it can provide a greater anti-overturning moment, reduce the risk of the machine tool tipping over, and ensure the stable operation of the machine tool under various working conditions.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage vibration isolation system for the base of a five-axis linkage machine tool, comprising a machine base (1), characterized in that, The upper surface of the base (1) is provided with a milling frame (2). Inside the base (1), a U-shaped block one (3) is fixedly connected. The outer wall of the U-shaped block one (3) is fixedly connected with a motor (4). The output end of the motor (4) is rotatably connected inside the U-shaped block one (3) and fixedly connected with a worm (5). The outer wall of the worm (5) is rotatably connected inside the U-shaped block one (3). The tooth end of the worm (5) is meshed and connected with a worm wheel (6). The inner wall of the worm wheel (6) is fixedly connected with a rotating shaft (7). The outer wall of the rotating shaft (7) is fixedly connected with a bevel gear one (10). The outer wall of the rotating shaft (7) is fixedly connected with a circular gear (9). The outer wall of the base (1) is fixedly connected with a support block (8). The outer wall of the rotating shaft (7) is rotatably connected inside the support block (8). Inside the base (1), a T-shaped through groove (11) is opened. Inside the base (1), a limiting groove (12) is opened. The outer wall of the base (1) is provided with a primary vibration isolation mechanism. The tooth end of the circular gear (9) is provided with a secondary vibration isolation mechanism.

2. The multi-stage vibration isolation system for the base of a five-axis linkage machine tool according to claim 1, characterized in that, The primary vibration isolation mechanism includes a U-shaped block two (13). The outer wall of the U-shaped block two (13) is fixedly connected to the outer wall of the base (1). Inside the U-shaped block two (13), a guide post one (14) is fixedly connected. The outer wall of the guide post one (14) is slidably connected with an internally threaded slider (15). Inside the U-shaped block two (13), a threaded rod (16) is rotatably connected. The outer wall of the threaded rod (16) is threadedly connected inside the internally threaded slider (15).

3. The multi-stage vibration isolation system for the base of a five-axis linkage machine tool according to claim 1, wherein, The primary vibration isolation mechanism further includes a bevel gear two (17). The inner wall of the bevel gear two (17) is fixedly connected to the outer wall of the threaded rod (16). The tooth end of the bevel gear two (17) is meshed and connected with the tooth end of the bevel gear one (10).

4. A multi-stage vibration isolation system for the base of a five-axis linkage machine tool according to claim 1, characterized in that, The primary vibration isolation mechanism further includes a side plate (18). The outer wall of the side plate (18) is fixedly connected to the outer wall of the U-shaped block two (13). The outer wall of the side plate (18) is provided with an inclined groove (19).

5. A multi-stage vibration isolation system for a five-axis linkage machine tool base according to claim 1, characterized in that, The primary vibration isolation mechanism further includes a U-shaped plate two (20). The outer wall of the U-shaped plate two (20) is fixedly connected to the outer wall of the internally threaded slider (15). Inside the U-shaped plate two (20), a guide post two (21) is fixedly connected. The outer wall of the guide post two (21) is slidably connected with a slider three (22). The outer wall of the slider three (22) is fixedly connected with a connecting block (23). The outer wall of the connecting block (23) is fixedly connected with a sliding column (24). The outer wall of the sliding column (24) is slidably connected to the inner wall of the inclined groove (19). The upper surface of the slider three (22) is fixedly connected with an L-shaped support leg (25). The lower surface of the L-shaped support leg (25) is fixedly connected with a support plate (26).

6. The multi-stage vibration isolation system for the base of a five-axis linkage machine tool according to claim 1, wherein, The primary vibration isolation mechanism further includes a damper (27). One end of the damper (27) is fixedly connected to the upper surface of the support plate (26). The other end of the damper (27) is fixedly connected to the outer wall of the L-shaped support leg (25).

7. A multi-stage vibration isolation system for the base of a five-axis linkage machine tool according to claim 1, characterized in that, The secondary vibration isolation mechanism includes a rack (28), the tooth end of the rack (28) is meshed and connected with the tooth end of a circular gear (9), a sliding plate (29) is fixedly connected to the upper surface of the rack (28), the outer wall of the sliding plate (29) is slidably connected to the inner wall of a T-shaped through groove (11), a limiting column (30) is fixedly connected to the outer wall of the sliding plate (29), and the outer wall of the limiting column (30) is slidably connected to the inner wall of a limiting groove (12).

8. A multi-stage vibration isolation system for the base of a five-axis linkage machine tool according to claim 1, characterized in that, The secondary vibration isolation mechanism further includes a rotating column (31), the outer wall of the rotating column (31) is rotatably connected to the inside of the sliding plate (29), a first circular block (32) is fixedly connected to the outer wall of the rotating column (31), a clamping groove (33) is formed in the outer wall of the first circular block (32), and a support frame (34) is fixedly connected to the outer wall of the rotating column (31).

9. The multi-stage vibration isolation system for the base of a five-axis linkage machine tool according to claim 1, wherein, The secondary vibration isolation mechanism further includes a fixed block (35), the lower surface of the fixed block (35) is fixedly connected to the upper surface of the sliding plate (29), a clamping column (36) is slidably connected to the inside of the fixed block (35), the outer wall of the clamping column (36) is slidably connected to the inner wall of the clamping groove (33), a pulling block (37) is fixedly connected to the outer wall of the clamping column (36), a limiting circular block (38) is fixedly connected to the outer wall of the clamping column (36), and a spring (39) is slidably connected to the outer wall of the clamping column (36).

10. A multi-stage vibration isolation system for the base of a five-axis linkage machine tool according to claim 9, characterized in that, One end of the spring (39) is fixedly connected to the outer wall of the fixed block (35), and the other end of the spring (39) is fixedly connected to one end of the limiting circular block (38) close to the fixed block (35).

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