A high-rigidity rotary table saddle for a numerical control machine tool

Abstract

This invention discloses a high-rigidity rotary table saddle for CNC machine tools, belonging to the technical field of machine tool machining parts. The high-rigidity rotary table saddle for CNC machine tools includes a main body with a hollow internal structure. A slide rail is mounted on the top surface of the main body, and a connecting seat is mounted on the bottom surface of the main body. A flat plate is located on top of the main body and is fixedly connected to the inner wall of the main body. An energy storage and stabilizing component is disposed at the center of the flat plate to improve dynamic rigidity and machining stability. Several adaptive components are mounted on the top surface of the flat plate in a symmetrically distributed circular pattern to adapt to nonlinear vibrations generated during machine tool machining. By employing energy storage and stabilizing components and adaptive components, this invention solves the core pain points of traditional saddles—vibration transmission and insufficient dynamic rigidity—while also possessing the advantages of reliable structure and wide applicability. It can directly promote the improvement of stability and efficiency in the machining of high-precision, complex parts in CNC machine tools.

Description

Technical Field

[0001] This invention belongs to the field of machine tool processing parts technology, specifically relating to a high-rigidity rotary table saddle for CNC machine tools. Background Technology

[0002] High-rigidity rotary table saddles are a key component of CNC machine tools. They are mainly used to support and position the rotary table to ensure high precision and stability during machining. High-rigidity rotary table saddles are generally made of high-strength cast iron or steel, which can provide excellent rigidity and stability. These materials have good resistance to deformation and can withstand various forces and vibrations during machining. Therefore, they are widely used in CNC equipment such as five-axis machining centers, vertical milling machines, and horizontal lathes. The application of high-rigidity rotary table saddles in CNC machine tools not only improves machining accuracy and efficiency, but also plays a positive role in promoting the sustainable development and technological innovation of modern manufacturing.

[0003] When a machine tool processes parts on a worktable, it generates harmful vibrations under complex, time-varying cutting loads. Since the saddle and the worktable are connected by a solid-state connection, the vibrations generated during processing are easily transmitted to the saddle through the worktable. This transmission affects the stability of the saddle and the machine tool foundation, thereby affecting the processing accuracy. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a high-rigidity rotary table saddle for CNC machine tools.

[0005] The technical solution adopted to solve the above technical problems is: a high-rigidity rotary table saddle for CNC machine tools, including a main body with a hollow internal structure, a slide rail installed on the top surface of the main body, and a connecting seat installed on the bottom surface of the main body. The outer wall of the main body has several through holes, and a flat plate is set inside the main body. The flat plate is located on the top of the main body and is fixedly connected to the inner wall of the main body. An energy storage and stabilizing component is set at the center of the flat plate to improve dynamic rigidity and machining stability. The energy storage and stabilization component includes four circular plates arranged symmetrically in a circle, and the circular plates are rotatably connected to the flat plate. At the same time, the circular plate connecting shaft is rotatably connected to the flat plate through the plate. A first bevel gear is fixedly connected to the through end of the circular plate connecting shaft, and a second bevel gear is driven to one side of the first bevel gear. The second bevel gear is rotatably connected to a fixed frame, and the fixed frame is fixedly connected to the bottom of the flat plate. The top surface of the plate is equipped with several adaptive components arranged symmetrically in a circle to adapt to the nonlinear vibrations generated during machine tool processing.

[0006] Through the above technical solution, the hollow structure of the main body significantly reduces the weight of the saddle while ensuring the rigidity of the foundation, thereby reducing the load on the machine tool drive system and lowering the energy consumption of the machine tool. At the same time, it avoids accelerated wear of the slide rails due to excessive weight of the saddle. The through holes form a natural ventilation channel, which can quickly dissipate the heat generated by gear meshing (such as No. 1 bevel gear and No. 2 bevel gear) and friction of sliding parts (such as No. 1 moving part and No. 2 moving part) during the processing, and avoid lubrication failure or material deformation of components due to high temperature, thereby indirectly extending the service life of the saddle.

[0007] Furthermore, a bevel gear disk is connected to several of the second bevel gears for transmission, and the bevel gear disk is rotatably connected to the fixed frame. At the same time, the bevel gear disk connecting shaft is rotatably connected to the fixed frame through it. A main collar is fixedly connected to the through end of the bevel gear disk connecting shaft, and the other end of the main collar is rotatably connected to the main body. A secondary collar is rotatably connected inside the main collar, and the secondary collar and the main collar are arranged in a cross shape. A circular block is rotatably connected inside the secondary collar, and the circular block and the secondary collar are arranged in a cross shape.

[0008] Through the above technical solution, the vibration reduction and stiffness enhancement functions of the saddle rely entirely on pure mechanical structure transmission (spring extension and contraction, gear meshing, and collar rotation), without the need for electronic components such as motors and sensors, or additional power supply or signal wiring. This reduces the complexity of the machine tool's circuit system, lowers energy consumption costs, and avoids safety hazards caused by wiring wear. It is especially suitable for the upgrading and transformation of old machine tools.

[0009] Furthermore, a rotating rod is rotatably connected to the eccentric part of the top surface of the circular plate, and the rotating rod is arranged in an L-shape. At the same time, a second moving part is rotatably connected to the other end of the rotating rod. The second moving part is slidably connected to a support base, and the support base is fixedly connected to the top surface of the plate. The second moving part is arranged in a hook shape. A first moving part is slidably connected to the side of the second moving part away from the rotating rod, and the first moving part is arranged in an L-shape. A kit is slidably connected to the outer walls of the first and second moving parts, and the kit limits the movement of the first and second moving parts.

[0010] Through the above technical solution, the cross structure of the main collar, the secondary collar and the circular block can automatically correct the center deviation during rotation, avoid the weakening of the gyro effect, and maintain the ability to resist multi-directional vibration after long-term use.

[0011] Furthermore, a spring is fixedly connected between the end of the second moving part away from the rotating rod and the end of the first moving part away from the second moving part. A contact plate is fixedly connected to the side of the first moving part away from the first spring, and the other end of the contact plate contacts the inner wall of the main body. A rack is welded to the inner wall of the second moving part facing the first moving part, and a rack is welded to the inner wall of the first moving part facing the second moving part. A driven gear meshes between the rack and the rack, and the driven gear is rotatably connected to the kit.

[0012] Furthermore, when the main body vibrates, the contact plate and its inner wall contact surface generate a reaction force, which drives the first moving part to slide in the groove of the first rack through the contact plate, thereby causing the second rack to move synchronously under the meshing action of the driven gear, driving the driven gear to rotate, so that the first rack moves relatively under the drive of the driven gear.

[0013] With the above technical solution, the energy storage stabilization component is fixed to the plate by a mounting bracket, and the adaptive component is fixed to the plate by a mounting base. The two do not interfere with each other. During maintenance, a single component can be disassembled without disassembling the entire saddle, thus improving maintenance efficiency.

[0014] Furthermore, the second moving component moves synchronously with the first rack, causing the first and second moving components to move in opposite directions, compressing and stretching the first spring. The force energy is released through the elastic deformation of the first spring itself, and the force is amplified by the first rack, the second rack, and the driven gear, causing the second moving component to drive the rotating rod to move and rotate around the eccentric part of the circular plate, thereby driving the circular plate to rotate.

[0015] Furthermore, the adaptive component includes a fixed base that is fixedly installed on the top surface of the plate, and the fixed base is arranged in a U-shape. A first sliding frame and a second sliding frame are slidably connected through the top of the fixed base. The first sliding frame is arranged in a U-shape, while the second sliding frame is arranged in a T-shape. A second spring is fixedly connected between the first sliding frame and the fixed base.

[0016] Through the above technical solution, the reverse movement of the first and second moving parts and the meshing transmission of the bevel gear and bevel gear disk are all offset by lateral forces through symmetrical structure, reducing the additional stress between components and extending the service life of core transmission components such as gears and sliding parts.

[0017] Furthermore, the second spring is located at the center of the fixed base, and two third springs are provided at the penetration point between the first sliding frame and the fixed base. One end of the third spring is fixedly connected to the first sliding frame, and the other end of the third spring is fixedly connected to the second sliding frame. The top of the first sliding frame is slidably connected to the second sliding frame. Two fourth springs are provided at the penetration point between the first and second sliding frames. The two ends of the fourth spring are fixedly connected to the second sliding frame and the first sliding frame, respectively, and the top of the second sliding frame is fixedly connected to the main body.

[0018] Through the above technical solution, springs No. 2, No. 3, and No. 4 form a "vertical multi-level buffer", and spring No. 1 forms a "horizontal impact cancellation" after the force is amplified by gears, which can absorb the instantaneous impact energy during the processing.

[0019] The beneficial effects of the present invention are as follows: (1) The present invention adopts an adaptive component, and through the coordinated extension and retraction of spring No. 2, spring No. 3 and spring No. 4, it supports the vertical vibration of the top of the main body. The relative motion between the sliding frame No. 2 and the sliding frame No. 1 forms a "hammer-type reciprocating motion", which can automatically track the vibration frequency and match the reverse momentum, accurately offset the harmful vibration in the vertical direction, and adapt to the vibration frequency changes in different processing scenarios (such as vibration differences caused by different cutting parameters and different parts materials). Stable vibration reduction can be achieved without manual adjustment, which solves the problem of "strong targeting and poor versatility" of traditional vibration reduction structures; (2) By adopting an energy storage and stabilizing component, the elastic deformation of the first spring releases the basic force, which is amplified by the rack and pinion mechanism and drives the core transmission structure of the energy storage and stabilizing component to operate, realizing "small spring output large force". This allows the saddle to generate a reverse support force through its own structure when vibrating, rather than simply relying on the material to resist deformation. In addition, the cross-rotation structure of the main collar, the secondary collar and the circular block forms a continuous angular momentum under the drive of the circular plate. This angular momentum can effectively resist the instantaneous deformation caused by the cutting load, allowing the saddle to maintain structural stability under complex and time-varying processing loads and avoid processing errors caused by insufficient rigidity. (3) The present invention adopts a hollow structure with through hole design in the main body, which reduces the weight while ensuring the rigidity of the foundation; all transmission structures (gears, sliding parts, springs) are mechanically connected, without electronic components, and have strong resistance to wear and harsh working conditions. It can be widely adapted to various CNC equipment such as five-axis machining centers, vertical milling machines, and horizontal lathes, which not only improves the processing limit of the equipment, but also reduces the later maintenance cost. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the second perspective structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the main body of the present invention from a first-view perspective; Figure 4 This is a schematic diagram of the internal structure of the main body of the present invention from a second perspective; Figure 5 yes Figure 4 A magnified structural diagram at point A; Figure 6 This is a schematic diagram of the internal third-view structure of the main body of the present invention; Figure 7 yes Figure 6 A magnified structural diagram at point B.

[0021] Reference numerals: 11. Main body; 12. Through hole; 13. Slide rail; 14. Connecting seat; 15. Flat plate; 2. Energy storage and stabilizing component; 21. Kit; 22. Moving part No. 1; 23. Moving part No. 2; 24. Rack No. 1; 25. Rack No. 2; 26. Driven gear; 27. Spring No. 1; 28. Contact plate; 29. ​​Support seat; 210. Rotating rod; 211. Circular plate; 212. Bevel gear No. 1; 213. Fixed frame; 214. Bevel gear No. 2; 215. Bevel gear disc; 216. Main collar; 217. Secondary collar; 218. Circular block; 3. Adaptive component; 31. Fixed seat; 32. Spring No. 2; 33. Sliding frame No. 1; 34. Spring No. 3; 35. Sliding frame No. 2; 36. Spring No. 4. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] like Figures 1-5As shown in this embodiment, a high-rigidity rotary table saddle for a CNC machine tool includes a main body 11 with a hollow internal structure. A slide rail 13 is mounted on the top surface of the main body 11, and a connecting seat 14 is mounted on the bottom surface of the main body 11. Several through holes 12 are formed through the outer wall of the main body 11. A flat plate 15 is disposed inside the main body 11 and is located on top of the main body 11. The flat plate 15 is fixedly connected to the inner wall of the main body 11. An energy storage and stabilizing component 2 is disposed at the center of the flat plate 15 to improve dynamic rigidity and machining stability. The energy storage and stabilizing component 2 includes four circumferentially symmetrically distributed circular plates 211. A rotating rod 210 is rotatably connected to the eccentric part of the top surface of each circular plate 211. The rotating rod 210 has an L-shaped structure, and a second moving component is rotatably connected to the other end of the rotating rod 210. 23. The hollow structure of the main body 11, while ensuring the rigidity of the foundation, significantly reduces the weight of the saddle, reduces the load on the machine tool drive system, and lowers the energy consumption of the machine tool. At the same time, it avoids accelerated wear of the slide rail 13 due to excessive weight of the saddle. The through hole 12 forms a natural ventilation channel, which can quickly dissipate the heat generated by gear meshing (such as No. 1 bevel gear 212 and No. 2 bevel gear 214) and sliding friction (such as No. 1 moving part 22 and No. 2 moving part 23) during the processing, and avoid lubrication failure or material deformation of components due to high temperature, thereby indirectly extending the service life of the saddle. A No. 1 spring 27 is fixedly connected between the end of No. 2 moving part 23 away from the rotating rod 210 and the end of No. 1 moving part 22 away from No. 2 moving part 23, and a contact plate 28 is fixedly connected to the side of No. 1 moving part 22 away from No. 1 spring 27.

[0024] like Figures 1-6 As shown, the energy storage and stabilization component 2 is fixed to the plate 15 via the fixing frame 213, and the adaptive component 3 is fixed to the plate 15 via the fixing base 31. The two do not interfere with each other, and a single component can be disassembled during maintenance without disassembling the entire saddle, thus improving maintenance efficiency. When the main body 11 vibrates, the contact plate 28 generates a reaction force with its inner wall contact surface. The contact plate 28 drives the first moving component 22 to slide in the groove of the first rack 24, thereby causing the second rack 25 to move synchronously under the meshing action of the driven gear 26, driving the driven gear 26 to rotate. This causes the first rack 24 to move relative to the driven gear 26, and the second moving component 23 follows the first rack. The synchronous movement of component 24 causes component 22 and component 23 to move in opposite directions, compressing and stretching spring 27. Spring 27 releases its own elastic deformation, and the force is amplified by rack 24, rack 25 and driven gear 26, causing component 23 to drive the rotating rod 210 to move and rotate around the eccentric part of circular plate 211, thereby driving circular plate 211 to rotate. The reverse movement of component 22 and component 23 and the meshing transmission of bevel gear and bevel gear disk 215 are all offset by lateral force through symmetrical structure, reducing additional stress between components and extending the service life of core transmission components such as gears and sliding parts.

[0025] like Figures 2-6 As shown, the other end of the touch plate 28 contacts the inner wall of the main body 11. A rack 24 is welded to the inner wall of the second moving part 23 facing the first moving part 22, and a rack 25 is welded to the inner wall of the first moving part 22 facing the second moving part 23. A driven gear 26 meshes between the first rack 24 and the second rack 25, and the driven gear 26 is rotatably connected to the kit 21. The second moving part 23 is slidably connected to the support base 29, and the support base 29 is connected to the plate 1. 5. The top surface is fixedly connected, and the second moving part 23 is arranged in a hook shape. The side of the second moving part 23 away from the rotating rod 210 is slidably connected to the first moving part 22, which is arranged in an L-shape. The outer walls of the first moving part 22 and the second moving part 23 are slidably connected to the kit 21, which limits the movement of the first moving part 22 and the second moving part 23. The circular plate 211 is rotatably connected to the flat plate 15, and the connecting shaft of the circular plate 211 is connected to... The plate 15 is rotatably connected through the saddle. The vibration reduction and stiffness enhancement functions of the saddle rely entirely on the pure mechanical structure transmission (spring extension and contraction, gear meshing, and collar rotation). It does not require electronic components such as motors and sensors, nor does it require additional power supply or signal wiring. This reduces the complexity of the machine tool circuit system, lowers energy consumption costs, and avoids safety hazards caused by wiring wear. It is especially suitable for upgrading and retrofitting old machine tools. The circular plate 211 is fixedly connected to the first bevel gear 212 through the shaft. The first bevel gear 212 is connected to the second bevel gear 214 through one side. The bevel gears 214 are connected to the bevel gear disk 215 through several second bevel gears 214. The bevel gear disk 215 is rotatably connected to the fixed frame 213. At the same time, the bevel gear disk 215 connecting shaft is rotatably connected to the fixed frame 213 through the shaft.

[0026] like Figures 1-7As shown, a main collar 216 is fixedly connected to the through end of the connecting shaft of the bevel gear disk 215, and the other end of the main collar 216 is rotatably connected to the main body 11. A secondary collar 217 is rotatably connected inside the main collar 216, and the secondary collar 217 and the main collar 216 are arranged in a cross shape. A circular block 218 is rotatably connected inside the secondary collar 217. The cross structure of the main collar 217, the secondary collar 216, and the circular block 218 can automatically correct the center deviation during rotation, avoid the weakening of the gyro effect, and maintain the multi-directional vibration resistance capability after long-term use. The circular block 218 and the secondary collar 217 are also rotatably connected. 17 are arranged in a cross shape, and the second bevel gear 214 is rotatably connected to the fixed frame 213. The fixed frame 213 is fixedly connected to the bottom of the plate 15. Several adaptive components 3 are installed on the top surface of the plate 15 in a circumferentially symmetrical arrangement to adapt to the nonlinear vibration generated by the machine tool processing. The adaptive component 3 includes a fixed seat 31 fixedly installed on the top surface of the plate 15. The fixed seat 31 is arranged in a U-shape. The top of the fixed seat 31 is slidably connected to the first sliding frame 33 and the second sliding frame 35. The first sliding frame 33 is arranged in a U-shape.

[0027] like Figures 2-7 As shown, the second sliding frame 35 is arranged in a T-shape. A second spring 32 is fixedly connected between the first sliding frame 33 and the fixed base 31. The second spring 32 is located at the center of the fixed base 31. Two third springs 34 are arranged at the through-hole between the first sliding frame 33 and the fixed base 31. One end of the third spring 34 is fixedly connected to the first sliding frame 33, and the other end of the third spring 34 is fixedly connected to the second sliding frame 35. The top of the first sliding frame 33 is slidably connected to the second sliding frame 35. The second spring 32, the third spring 34, and the fourth spring 36 form a "vertical multi-level buffer". The first spring 27 forms a "horizontal impact cancellation" after amplifying the force through the gear, which can absorb the instantaneous impact energy during processing. Two fourth springs 36 are arranged at the through-hole between the first sliding frame 33 and the second sliding frame 35. The two ends of the fourth spring 36 are fixedly connected to the second sliding frame 35 and the first sliding frame 33, respectively. The top of the second sliding frame 35 is fixedly connected to the main body 11.

[0028] The working principle of this embodiment is as follows: the connecting seat 14 at the bottom of the main body 11 is connected and fixed to the turntable of the machine tool, and the worktable of the machine tool is slidably connected to the slide rail 13 at the top of the main body 11.

[0029] When the machine tool is running and processing the parts on the worktable, the main body 11 will vibrate in multiple directions due to the cutting force. At this time, the adaptive component 3 will receive the vertical vibration of the top of the main body 11 and respond quickly. The second sliding frame 35 will move relative to the main body 11, thereby stretching or compressing the fourth spring 36. At the same time, it will drive the first sliding frame 33 to slide in the fixed seat 31, and squeeze the second spring 32 and the third spring 34 to buffer together. This will make the second sliding frame 35 form a hammer-like reciprocating motion in the vertical direction, realizing passive frequency automatic tracking and matching. The impact force can most effectively input a momentum opposite to the structural vibration to achieve precise cancellation.

[0030] Furthermore, during the vibration of the main body 11, the sidewalls of the main body 11 will vibrate synchronously, thereby driving the contact plate 28 and its connected first moving part 22 to move horizontally under the longitudinal limiting action of the kit 21. When the first moving part 22 moves, the second rack 25, which is fixedly connected to its inner wall, meshes with the driven gear 26, driving the driven gear 26 to rotate, thereby driving the first rack 24 and its connected second moving part 23 to slide in the opposite direction along the inner wall of the kit 21, thereby pulling or compressing the first spring. 27. Under the action of rack 25, driven gear 26 and rack 24, the force is amplified. Spring 27 provides the basic force. After being amplified by the gear and rack mechanism, it drives the second moving part 23 to move, thus realizing "small spring output large force" and forming a spring force amplification mechanism. This pushes the rotating rod 210 to move. Under the push of the second moving part 23, the rotating rod 210 rotates around the connection with the circular plate 211 and performs transverse reciprocating motion simultaneously, thereby driving the circular plate 211 to rotate.

[0031] When the circular plate 211 rotates, it drives the first bevel gear 212 at the bottom of the flat plate 15 to rotate. The first bevel gear 212 then drives the second bevel gear 214, which meshes with it, to rotate. The second bevel gear 214 then drives the bevel gear disk 215 to rotate, thereby causing the main collar 216 at the bottom of the fixed frame 213 to rotate horizontally. The secondary collar 217 and its circular block 218 rotate synchronously and generate relative rotation with each other. Under the principle of conservation of angular momentum, the main collar 216, secondary collar 217 and circular block 218 at the bottom of the flat plate 15 have huge angular momentum, which will generate a strong gyroscopic torque (precessing torque) to resist the vibration of the main body 11. The direction of this torque is perpendicular to the direction of disturbance.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A high-rigidity rotary table saddle for a CNC machine tool, comprising a main body (11) with a hollow internal structure, wherein a slide rail (13) is mounted on the top surface of the main body (11), and a connecting seat (14) is mounted on the bottom surface of the main body (11), characterized in that: The outer wall of the main body (11) is provided with several through holes (12), and a plate (15) is provided inside the main body (11). The plate (15) is located on the top of the main body (11). The plate (15) is fixedly connected to the inner wall of the main body (11). An energy storage and stabilizing component (2) is provided at the center of the plate (15) to improve dynamic rigidity and processing stability. The energy storage and stabilization component (2) includes four circular plates (211) arranged symmetrically in a circle. The circular plates (211) are rotatably connected to the plate (15). At the same time, the connecting shaft of the circular plates (211) is rotatably connected to the plate (15). The connecting shaft of the circular plates (211) is fixedly connected to a first bevel gear (212) at the end. A second bevel gear (214) is connected to one side of the first bevel gear (212). At the same time, a fixed frame (213) is rotatably connected to the second bevel gear (214). The fixed frame (213) is fixedly connected to the bottom of the plate (15). The top surface of the plate (15) is equipped with several adaptive components (3) arranged in a circumferentially symmetrical manner to adapt to the nonlinear vibrations generated by machine tool processing.

2. A high-rigidity rotary table saddle for CNC machine tools according to claim 1, characterized in that, A bevel gear disk (215) is connected to several of the second bevel gears (214) for transmission, and the bevel gear disk (215) is rotatably connected to the fixed frame (213). At the same time, the connecting shaft of the bevel gear disk (215) is rotatably connected to the fixed frame (213). The connecting shaft of the bevel gear disk (215) is fixedly connected to the end of the connecting shaft. The other end of the main collar (216) is rotatably connected to the main body (11). The main collar (216) is rotatably connected to the inner side of the secondary collar (217), and the secondary collar (217) and the main collar (216) are arranged in a cross shape. The secondary collar (217) is rotatably connected to the inner side of the circular block (218), and the circular block (218) and the secondary collar (217) are arranged in a cross shape.

3. A high-rigidity rotary table saddle for CNC machine tools according to claim 1, characterized in that, A rotating rod (210) is rotatably connected to the eccentric part of the top surface of the circular plate (211), and the rotating rod (210) is set in an L-shape. At the same time, a second moving part (23) is rotatably connected to the other end of the rotating rod (210). The second moving part (23) is slidably connected to a support seat (29), and the support seat (29) is fixedly connected to the top surface of the flat plate (15). The second moving part (23) is set in a hook shape. A first moving part (22) is slidably connected to the side of the second moving part (23) away from the rotating rod (210), and the first moving part (22) is set in an L-shape. A kit (21) is slidably connected to the outer walls of the first moving part (22) and the second moving part (23), and the kit (21) limits the first moving part (22) and the second moving part (23).

4. A high-rigidity rotary table saddle for CNC machine tools according to claim 3, characterized in that, A spring (27) is fixedly connected between the end of the second moving part (23) away from the rotating rod (210) and the end of the first moving part (22) away from the second moving part (23). A contact plate (28) is fixedly connected to the side of the first moving part (22) away from the first spring (27). At the same time, the other end of the contact plate (28) contacts the inner wall of the main body (11). A rack (24) is welded to the inner wall of the second moving part (23) facing the first moving part (22). A rack (25) is welded to the inner wall of the first moving part (22). A driven gear (26) meshes between the rack (24) and the rack (25). The driven gear (26) is rotatably connected to the kit (21).

5. A high-rigidity rotary table saddle for CNC machine tools according to claim 4, characterized in that, When the main body (11) vibrates, the contact plate (28) and its inner wall contact surface generate a reaction force. The contact plate (28) drives the first moving part (22) to slide in the groove of the first rack (24), thereby causing the second rack (25) to move synchronously under the meshing action of the driven gear (26), driving the driven gear (26) to rotate, so that the first rack (24) moves relative to the driven gear (26).

6. A high-rigidity rotary table saddle for CNC machine tools according to claim 5, characterized in that, The second moving part (23) moves synchronously with the first rack (24), so that the first moving part (22) and the second moving part (23) move in opposite directions, squeezing and pulling the first spring (27). The force energy is released by the elastic deformation of the first spring (27), and the force is amplified by the first rack (24), the second rack (25) and the driven gear (26), so that the second moving part (23) drives the rotating rod (210) to move and rotate around the eccentric part of the circular plate (211), thereby driving the circular plate (211) to rotate.

7. A high-rigidity rotary table saddle for CNC machine tools according to claim 1, characterized in that, The adaptive component (3) includes a fixed base (31) fixedly installed on the top surface of the plate (15), and the fixed base (31) is U-shaped. The top of the fixed base (31) is slidably connected to a first sliding frame (33) and a second sliding frame (35). The first sliding frame (33) is U-shaped, while the second sliding frame (35) is T-shaped. A second spring (32) is fixedly connected between the first sliding frame (33) and the fixed base (31).

8. A high-rigidity rotary table saddle for CNC machine tools according to claim 7, characterized in that, The second spring (32) is located at the center of the fixed base (31), and two third springs (34) are provided at the through-hole between the first sliding frame (33) and the fixed base (31). One end of the third spring (34) is fixedly connected to the first sliding frame (33), and the other end of the third spring (34) is fixedly connected to the second sliding frame (35). The top of the first sliding frame (33) is slidably connected to the second sliding frame (35), and two fourth springs (36) are provided at the through-hole between the first sliding frame (33) and the second sliding frame (35). The two ends of the fourth spring (36) are fixedly connected to the second sliding frame (35) and the first sliding frame (33) respectively, and the top of the second sliding frame (35) is fixedly connected to the main body (11).

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