Metal plate processing sawing machine with anti-shake mechanism

Abstract

The application belongs to the technical field of sawing machine anti-shaking, in particular to a metal plate processing sawing machine with an anti-shaking mechanism, which comprises a sawing machine body, a tool rest arranged on the sawing machine body, and a saw blade arranged in the tool rest, two top pressing wheels are slidably arranged in the tool rest, the two top pressing wheels are symmetrically arranged on both sides of the saw blade, and the two top pressing wheels simultaneously extrude the saw blade from outside to inside, a first damping box containing damping liquid is fixedly arranged in the tool rest, a first flywheel is rotatably arranged in the tool rest, a transmission rod is fixedly connected to the bottom end of the first flywheel, one end of the transmission rod extends into the first damping box, and a first impeller is fixedly arranged in the first damping box, a toothed plate is slidably arranged in the tool rest, and a transmission gear meshing with the toothed plate is rotatably arranged in the tool rest, the transverse vibration of the saw blade is effectively inhibited by consuming the vibration kinetic energy of the saw blade, and the perpendicularity and flatness of the cutting section are significantly improved.

Description

Technical Field

[0001] This invention belongs to the field of anti-vibration technology for sawing machines, specifically a metal sheet processing sawing machine with an anti-vibration mechanism. Background Technology

[0002] A sheet metal saw is an industrial machine tool specifically designed for cutting and blanking sheet metal to specific dimensions. It mainly uses a high-speed saw blade or saw strip to divide large sheets of sheet metal into smaller pieces or strips of the required size. It is usually equipped with a large worktable and precision clamps (such as hydraulic clamps), and often works in conjunction with an automatic feeding system to achieve efficient, high-precision, and automated cutting of large-format thin sheets. Its core advantage lies in its ability to provide neat and vertical cut surfaces, laying the foundation for subsequent stamping, bending, and other processes.

[0003] During the cutting process, the saw blade will vibrate violently due to the force, its own vibration and the resistance of the material. This will cause the cut to be skewed, the cut surface to be rough and full of vibration marks, and it will not meet the dimensional accuracy requirements. Furthermore, the vibration will cause the saw blade to be subjected to uneven impact stress, which will easily lead to premature wear of the saw teeth or even fatigue fracture of the saw blade, thereby affecting production efficiency.

[0004] Therefore, the present invention provides a metal sheet processing saw with a vibration stabilization mechanism. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a metal sheet processing saw with an anti-shake mechanism, comprising a saw body, a tool holder disposed on the saw body, and a saw blade located inside the tool holder; Two pressure rollers are slidably installed inside the blade holder. The two pressure rollers are symmetrically arranged on both sides of the saw blade, and the two pressure rollers simultaneously squeeze the saw blade from the outside to the inside. The tool holder has a first damping box containing damping fluid fixedly installed inside. The tool holder has a first flywheel rotatably installed inside. The bottom end of the first flywheel is fixedly connected to a transmission rod. One end of the transmission rod extends into the interior of the first damping box and is fixedly installed with a first impeller. A toothed plate is slidably installed inside the tool holder, and a transmission gear that meshes with the toothed plate is rotatably installed inside the tool holder. The transmission gear is connected to the first flywheel through a limiting component. The tool holder is equipped with a sensitivity enhancement mechanism for transmission between the pressure roller and the toothed plate, which increases the sliding distance of the pressure roller and transmits it to the toothed plate.

[0007] The sensitivity enhancement mechanism includes a swing arm and a rotating shaft. The swing arm is rotatably installed inside the tool holder. The swing arm is composed of a short arm and a long arm. The rotating shaft is fixedly installed on the side wall of the short arm. The short arm is movably connected to the top pressure wheel. One end of the long arm is movably connected to the toothed plate.

[0008] The limiting mechanism includes a connecting bent rod, a first limiting ring, a first limiting groove, and a first limiting rod. The first limiting ring is sleeved on the outside of the first flywheel. The transmission gear is fixedly connected to the first limiting ring through the first connecting bent rod. The first limiting groove is formed on the inner wall of the first limiting ring, and its groove width decreases from wide to narrow from one end to the other. The first limiting rod is elastically installed inside the first limiting groove, and the outer wall of the first limiting rod fits against the outer wall of the first flywheel.

[0009] A transmission disc is rotatably mounted on the top of the transmission gear, a rotating rod is fixedly mounted on the top of the transmission disc, and a turntable is fixedly mounted on the top of the rotating rod. A second limiting ring is fixedly connected to the turntable via a connecting rod. A second flywheel is rotatably mounted inside the second limiting ring. A second limiting groove is formed on the inner wall of the second limiting ring, and the width of the groove decreases from wide to narrow from one end to the other. A second limiting rod is elastically mounted inside the second limiting groove, and the outer wall of the second limiting rod fits against the outer wall of the second flywheel.

[0010] A transmission rod is fixedly installed at the top of the transmission gear, a centrifugal wheel is fixedly installed at the top of the transmission rod, a sliding groove is opened at the top of the centrifugal wheel, a locking block is elastically installed inside the sliding groove, and a stop block for preventing the locking block from rotating is fixedly installed inside the transmission disc.

[0011] The tool holder has a second damping box for storing damping fluid fixedly installed inside. The second damping box is fixedly installed above the second flywheel. A transmission column is fixedly installed at the top of the second flywheel. A second impeller is rotatably installed at the top of the transmission column and is located inside the second damping box. The size of the second impeller is larger than that of the first impeller.

[0012] A gear ring is fixedly installed on the outer wall of the transmission column, a transmission gear is rotatably installed inside the tool holder, and a rotating gear is fixedly installed on the outer wall of the second impeller. The transmission gear and the rotating gear have the same size, and the number of teeth on the gear ring is greater than the number of teeth on the transmission gear and the rotating gear.

[0013] The beneficial effects of this invention are as follows: 1. The metal sheet processing saw with an anti-vibration mechanism described in this invention firstly, the top pressure rollers symmetrically arranged on both sides of the saw blade directly contact the saw blade, and together with the transmission gear, drive the first flywheel and the first impeller to rotate in the damping fluid of the first damping box, consuming the vibration kinetic energy and effectively suppressing the lateral vibration of the saw blade, thereby significantly improving the perpendicularity and flatness of the cut surface, solving the problem of skewed cuts, rough cut surfaces, and vibration marks caused by vibration in the prior art. Secondly, the sensitivity enhancement mechanism amplifies the small sliding distance of the top pressure rollers and transmits it to the toothed plate, enhancing the detection sensitivity of the saw blade vibration, ensuring that even small vibrations can be effectively captured and processed, further guaranteeing the suppression effect on the lateral vibration of the saw blade.

[0014] 2. The metal sheet processing saw with an anti-vibration mechanism described in this invention employs a two-stage progressive damping suppression system to cope with vibrations of varying intensities. For minor vibrations, the operation of the first flywheel, transmission rod, and first impeller within the first damping box provides basic and efficient damping. When severe vibrations occur, the centrifugal coupling mechanism of the centrifugal wheel, locking block, and stop block automatically triggers a secondary damping system consisting of a second flywheel, transmission column, and second impeller. This achieves ultra-fast and powerful suppression of violent oscillations, greatly enhancing the stability and safety of the equipment when dealing with sudden heavy loads or impacts. Attached Figure Description

[0015] The invention will now be further described with reference to the accompanying drawings.

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the installation of the top pressure wheel in this invention; Figure 3 This is a schematic diagram of the internal structure of the tool holder in this invention; Figure 4 In this invention Figure 3 Enlarged view of point A in the image; Figure 5 In this invention Figure 3 Enlarged view of point B in the image.

[0017] In the diagram: 1. Sawing machine body; 2. Tool holder; 3. Saw blade; 4. Top pressure roller; 5. Swing arm; 6. Tooth plate; 7. Transmission gear; 8. Transmission rod; 9. Second flywheel; 10. Transmission column; 11. Gear ring; 12. Transmission gear; 13. Rotating gear; 14. Second impeller; 15. Second damping box; 16. Second limit ring; 17. Short arm; 18. Second limit rod; 19. Second limit groove; 20. Connecting rod; 21. Turntable; 22. Rotating rod; 23. Transmission disc; 24. Stop block; 25. Locking block; 26. Slide groove; 27. Centrifugal wheel; 28. Connecting bent rod; 29. ​​First limit ring; 30. First limit groove; 31. First limit rod; 32. First flywheel; 33. First damping box; 34. First impeller; 35. Transmission rod; 36. Rotating shaft; 37. Long arm. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] The present invention provides a metal sheet processing saw with an anti-shake mechanism, comprising a saw body 1, a tool holder 2 disposed on the saw body 1, and a saw blade 3 located inside the tool holder 2; Two pressure rollers 4 are slidably installed inside the blade holder 2. The two pressure rollers 4 are symmetrically arranged on both sides of the saw blade 3, and the two pressure rollers 4 simultaneously squeeze the saw blade 3 from the outside to the inside. Two pressure rollers 4 are respectively attached to both ends of the saw blade 3. When the saw blade 3 moves and cuts the workpiece, the pressure rollers 4 will rotate under the friction with the saw blade 3. If the saw blade 3 vibrates, the corresponding pressure rollers 4 will slide inside the tool holder 2 according to the direction of the vibration. A rubber coating can be set on the pressure rollers 4 to reduce wear on the saw blade 3 and provide a certain noise reduction effect.

[0020] The tool holder 2 has a first damping box 33 containing damping fluid fixedly installed inside. The tool holder 2 has a first flywheel 32 rotatably installed inside. The bottom end of the first flywheel 32 is fixedly connected to a transmission rod 35. One end of the transmission rod 35 extends into the interior of the first damping box 33 and is fixedly installed with a first impeller 34. A toothed plate 6 is slidably installed inside the tool holder 2, and a transmission gear 7 that meshes with the toothed plate 6 is rotatably installed inside the tool holder 2. The transmission gear 7 is connected to the first flywheel 32 through a limiting component. (by Figure 2(From a reference perspective) By setting a limiting component, the transmission gear 7 located on the right side of the saw blade 3 can drive the first flywheel 32 on the right side of the saw blade 3 to rotate counterclockwise when it rotates counterclockwise. When the transmission gear 7 rotates clockwise, it cannot drive the first flywheel 32 to rotate. When the first flywheel 32 rotates counterclockwise, it will drive the first impeller 34 to rotate counterclockwise inside the first damping box 33 through the transmission rod 35. When the transmission gear 7 on the left side of the saw blade 3 rotates clockwise, it can drive the first flywheel 32 on the left side of the saw blade 3 to rotate clockwise. When the transmission gear 7 rotates counterclockwise, it cannot drive the first flywheel 32 to rotate. When the first flywheel 32 rotates clockwise, it will drive the first impeller 34 to rotate clockwise inside the first damping box 33 through the transmission rod 35. The damping fluid filled inside the first damping box 33 blocks the blades of the first impeller 34, limiting the rotation of the first impeller 34 through resistance, thereby slowing down the rotation speed of the transmission gear 7. The tool holder 2 is equipped with a sensitivity enhancement mechanism for the transmission between the pressure roller 4 and the toothed plate 6, and at the same time increases the sliding distance of the pressure roller 4 and transmits it to the toothed plate 6.

[0021] When the saw blade 3 vibrates to the right, it pushes the top pressure wheel 4 located on the right side of the saw blade 3 to slide to the right inside the tool holder 2. The sensitivity-enhancing mechanism transmits the current sliding trajectory of the top pressure wheel 4 to the toothed plate 6, causing the toothed plate 6 to slide in the same direction. The sliding of the toothed plate 6 drives the transmission gear 7 to rotate (to...). Figure 2 (Referring to the perspective of the saw blade 3), when the top pressure wheel 4 located on the right side of the saw blade 3 slides to the right, the toothed plate 6 will drive the transmission gear 7 to rotate counterclockwise. When the top pressure wheel 4 located on the left side of the saw blade 3 slides to the left, the toothed plate 6 will drive the transmission gear 7 to rotate clockwise. Then, the transmission gear 7, in conjunction with the limiting component, will cause the first flywheel 32 to rotate. The damping fluid inside the first damping box 33 will block the first impeller 34, thereby slowing down the rotation speed of the transmission gear 7 and the sliding speed of the top pressure wheel 4, thus achieving anti-shaking of the saw blade 3.

[0022] By using a sensitivity-enhancing mechanism, the small sliding motion of the top pressure wheel 4 is amplified into a large movement of the toothed plate 6, thereby improving the system's response sensitivity to minute vibrations.

[0023] First, the top pressure rollers 4, symmetrically arranged on both sides of the saw blade 3, directly contact the saw blade 3. Together with the transmission gear 7, they drive the first flywheel 32 and the first impeller 34 to rotate in the damping fluid of the first damping box 33, consuming the vibration kinetic energy and effectively suppressing the lateral vibration of the saw blade 3. This significantly improves the perpendicularity and flatness of the cutting surface, solving the problem of "skewed cut, rough cutting surface and full of vibration marks" caused by vibration in the background technology. Second, the sensitivity enhancement mechanism amplifies the small sliding distance of the top pressure rollers 4 and transmits it to the toothed plate 6, enhancing the system's sensitivity to vibration detection and ensuring that even small vibrations can be effectively captured and processed, further guaranteeing the suppression effect on the lateral vibration of the saw blade 3.

[0024] The sensitivity enhancement mechanism includes a swing arm 5 and a rotating shaft 36. The swing arm 5 is rotatably installed inside the tool holder 2. The swing arm 5 is composed of a short arm 17 and a long arm 37 spliced ​​together. The rotating shaft 36 is fixedly installed on the side wall of the short arm 17. The short arm 17 is movably connected to the top pressure wheel 4. One end of the long arm 37 is movably connected to the toothed plate 6.

[0025] When the top pressure roller 4 slides away from the saw blade 3, it will first push the short arm 17, causing the swing arm 5 to rotate around the pivot 36. The long arm 37 will then push the toothed plate 6 to slide inside the tool holder 2, thereby amplifying the travel distance of the top pressure roller 4 and improving the response sensitivity to the small vibrations of the saw blade 3.

[0026] The limiting mechanism includes a connecting bent rod 28, a first limiting ring 29, a first limiting groove 30, and a first limiting rod 31. The first limiting ring 29 is sleeved on the outside of the first flywheel 32. The transmission gear 7 is fixedly connected to the first limiting ring 29 through the first connecting bent rod 28. The first limiting groove 30 is opened on the inner wall of the first limiting ring 29, and the width of the groove cavity decreases from wide to narrow from one end to the other. The first limiting rod 31 is elastically installed inside the first limiting groove 30, and the outer wall of the first limiting rod 31 is in contact with the outer wall of the first flywheel 32.

[0027] A spring rod is provided between the first limiting rod 31 and the first limiting groove 30. The spring rod ensures that the first limiting rod 31 is always pushed towards the narrow end of the first limiting groove 30. Figure 2 (From a reference perspective) When the saw blade 3 swings to the right and controls the transmission gear 7 located on the right side of the saw blade 3 to rotate clockwise, the transmission gear 7 will drive the first limiting ring 29 to rotate clockwise through the connecting bent rod 28. At this time, the first limiting ring 29 will drive the first flywheel 32 to rotate clockwise through the friction between the first limiting rod 31 and the outer wall of the first flywheel 32, and control the first impeller 34 to rotate inside the first damping box 33, thereby suppressing the saw blade 3 from shaking to the right. The principle of suppressing the saw blade 3 from swinging to the left is the same, only the direction of rotation is different, which will not be elaborated on here.

[0028] A transmission disk 23 is rotatably mounted on the top of the transmission gear 7. A rotating rod 22 is fixedly mounted on the top of the transmission disk 23. A turntable 21 is fixedly mounted on the top of the rotating rod 22. A second limiting ring 16 is fixedly connected to the turntable 21 via a connecting rod 20. A second flywheel 9 is rotatably mounted inside the second limiting ring 16. A second limiting groove 19 is formed on the inner wall of the second limiting ring 16. The width of the groove decreases from wide to narrow from one end to the other. A second limiting rod 18 is elastically mounted inside the second limiting groove 19. The outer wall of the second limiting rod 18 fits against the outer wall of the second flywheel 9. A transmission rod 8 is fixedly mounted on the top of the transmission gear 7. A centrifugal wheel 27 is fixedly mounted on the top of the transmission rod 8. A sliding groove 26 is formed on the top of the centrifugal wheel 27. A locking block 25 is elastically mounted inside the sliding groove 26. A stop block 24 for blocking the rotation of the locking block 25 is fixedly mounted inside the transmission disk 23.

[0029] When the transmission gear 7 located on the right side of the saw blade 3 rotates clockwise, it drives the centrifugal wheel 27 to rotate inside the transmission disk 23 through the transmission rod 8. Under normal conditions, the locking block 25 will approach the axis of the centrifugal wheel 27 under the action of elasticity. When the centrifugal wheel 27 rotates at a faster speed, the centrifugal force can throw the locking block 25 away from the axis until the locking block 25 is blocked by the stop block 24. At this time, when the centrifugal wheel 27 rotates, it will drive the transmission disk 23 to rotate synchronously. Under the action of the rotating rod 22, the turntable 21 will rotate. The connecting rod 20 will drive the second limiting ring 16 to rotate. A spring rod is provided between the second limiting rod 18 and the second limiting groove 19. Through the setting of the spring rod, the second limiting rod 18 will always maintain the tendency to push the second limiting rod 18 towards the narrow end of the second limiting groove 19.

[0030] The tool holder 2 has a second damping box 15 for storing damping fluid fixedly installed inside. The second damping box 15 is fixedly installed above the second flywheel 9. The top of the second flywheel 9 is fixedly installed with a transmission column 10. The top of the transmission column 10 is rotatably installed with a second impeller 14, which is located inside the second damping box 15. The size of the second impeller 14 is larger than the size of the first impeller 34.

[0031] (by Figure 2 (Referring to the perspective) When the saw blade 3 swings slightly to the right, the top pressure wheel 4 pushes the short arm 17, causing the swing arm 5 to rotate around the pivot 36. The long arm 37 then pushes the toothed plate 6 to slide inside the tool holder 2, while simultaneously driving the transmission gear 7 to rotate clockwise. At this time, the first limiting ring 29 will drive the first flywheel 32 to rotate clockwise through the friction between the first limiting rod 31 and the outer wall of the first flywheel 32, and control the first impeller 34 to rotate inside the first damping box 33, thereby suppressing the slight shaking of the saw blade 3 to the right.

[0032] When the saw blade 3 swings heavily to the right, the transmission gear 7 drives the centrifugal wheel 27 to rotate rapidly inside the transmission disk 23 via the transmission rod 8. The centrifugal force throws the locking block 25 away from the axis until the locking block 25 is blocked by the stop block 24, causing the transmission disk 23 to rotate synchronously. Under the action of the rotating rod 22, the turntable 21 is driven to rotate. The connecting rod 20 drives the second limiting ring 16 to rotate clockwise. Through the cooperation of the second limiting rod 18 and the second limiting groove 19, the second flywheel 9 can be controlled to rotate synchronously. The transmission column 10 drives the second impeller 14 to rotate inside the second damping box 15. Since the size of the second impeller 14 is larger than that of the first impeller 34, the resistance it receives will also increase. It can be triggered when the saw blade 3 swings heavily, thereby improving the suppression effect on the heavy swing of the saw blade 3.

[0033] A gear ring 11 is fixedly installed on the outer wall of the transmission column 10. A transmission gear 12 is rotatably installed inside the tool holder 2. A rotating gear 13 is fixedly installed on the outer wall of the second impeller 14. The transmission gear 12 and the rotating gear 13 have the same size. The number of teeth on the gear ring 11 is greater than the number of teeth on the transmission gear 12 and the rotating gear 13.

[0034] The transmission column 10 drives the gear ring 11 to rotate, and in conjunction with the transmission gear 12 and the rotating gear 13 with fewer teeth, the rotation speed of the second flywheel 9 can be further amplified and transmitted to the second impeller 14, so that the second impeller 14 can obtain an extremely high rotation speed in a very short time. This generates an extremely strong damping force in the second damping box 15, achieving ultra-fast and ultra-strong suppression of extreme vibrations, and further ensuring the safety of the saw blade 3 and the workpiece.

[0035] Working principle: When the saw blade 3 vibrates, for example, to the right, the top pressure wheel 4 pushes the short arm 17 of the swing arm 5, causing the swing arm 5 to rotate around the pivot 36. Its long arm 37 then pushes the toothed plate 6 to slide within the tool holder 2. This process amplifies the small sliding distance of the top pressure wheel 4. The transmission gear 7 drives the first limiting ring 29 to rotate through the connecting bent rod 28. Under the action of friction, the first flywheel 32 rotates. The first flywheel 32 drives the first impeller 34 to rotate in the damping fluid of the first damping box 33 through the transmission rod 35. The damping fluid generates resistance and consumes vibration energy, thereby suppressing the slight vibration of the saw blade 3.

[0036] If the saw blade 3 experiences severe vibration, the secondary damping mechanism is triggered. The transmission gear 7 drives the centrifugal wheel 27 to rotate at high speed via the transmission rod 8. The centrifugal force throws the locking block 25 out of the slide groove 26 and it is blocked by the stop block 24, thereby driving the transmission disc 23, the rotating rod 22, and the turntable 21 to rotate. The turntable 21 drives the second limiting ring 16 to rotate via the connecting rod 20. The second limiting rod 18 inside the second limiting ring 16 drives the second flywheel 9 to rotate synchronously. The second flywheel 9 drives the second impeller 14 to rotate in the damping fluid of the second damping box 15 via the transmission column 10. At the same time, the gear ring 11 on the transmission column 10, through the speed-increasing transmission of the transmission gear 12 and the rotating gear 13, enables the second impeller 14 to obtain a higher speed, thereby generating a stronger damping force in the second damping box 15, achieving strong suppression of severe vibration, and effectively ensuring the stability and accuracy of the saw blade 3 cutting.

[0037] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0038] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal sheet processing saw with a shaking mechanism, comprising a saw body (1), a tool holder (2) disposed on the saw body (1), and a saw blade (3) located inside the tool holder (2). Its features are: The blade holder (2) has two top pressure rollers (4) slidably installed inside. The two top pressure rollers (4) are symmetrically arranged on both sides of the saw blade (3), and the two top pressure rollers (4) simultaneously squeeze the saw blade (3) from the outside to the inside. The tool holder (2) has a first damping box (33) containing damping fluid fixedly installed inside. The tool holder (2) has a first flywheel (32) rotatably installed inside. The bottom end of the first flywheel (32) is fixedly connected to a transmission rod (35). One end of the transmission rod (35) extends into the interior of the first damping box (33) and is fixedly installed with a first impeller (34). The tool holder (2) has a toothed plate (6) slidably installed inside, and a transmission gear (7) that meshes with the toothed plate (6) is rotatably installed inside the tool holder (2). The transmission gear (7) is connected to the first flywheel (32) through a limiting component. The tool holder (2) is equipped with a sensitivity enhancement mechanism inside, which is used for the transmission between the top pressure wheel (4) and the toothed plate (6), and at the same time increases the sliding distance of the top pressure wheel (4) and transmits it to the toothed plate (6); A transmission disk (23) is rotatably mounted on the top of the transmission gear (7). A rotating rod (22) is fixedly mounted on the top of the transmission disk (23). A turntable (21) is fixedly mounted on the top of the rotating rod (22). A second limiting ring (16) is fixedly connected to the turntable (21) via a connecting rod (20). A second flywheel (9) is rotatably mounted inside the second limiting ring (16). A second limiting groove (19) is provided on the inner wall of the second limiting ring (16). The width of the groove decreases from wide to narrow from one end to the other. A second limiting rod (18) is elastically mounted inside the second limiting groove (19). The outer wall of the second limiting rod (18) is in contact with the outer wall of the second flywheel (9). The sensitivity enhancement mechanism includes a swing arm (5) and a rotating shaft (36). The swing arm (5) is rotatably installed inside the tool holder (2). The swing arm (5) is composed of a short arm (17) and a long arm (37) spliced ​​together. The rotating shaft (36) is fixedly installed on the side wall of the short arm (17). The short arm (17) is movably connected to the top pressure wheel (4). One end of the long arm (37) is movably connected to the toothed plate (6). The tool holder (2) is fixedly installed with a second damping box (15) for storing damping fluid. The second damping box (15) is fixedly installed above the second flywheel (9). The top of the second flywheel (9) is fixedly installed with a transmission column (10). The top of the transmission column (10) is rotatably installed with a second impeller (14) and located inside the second damping box (15). The size of the second impeller (14) is larger than that of the first impeller (34).

2. A metal sheet processing saw with an anti-vibration mechanism according to claim 1, characterized in that: The limiting assembly includes a connecting bend (28), a first limiting ring (29), a first limiting groove (30), and a first limiting rod (31). The first limiting ring (29) is sleeved on the outside of the first flywheel (32). The transmission gear (7) is fixedly connected to the first limiting ring (29) through the first connecting bend (28). The first limiting groove (30) is opened on the inner wall of the first limiting ring (29), and its groove width decreases from wide to narrow from one end to the other. The first limiting rod (31) is elastically installed inside the first limiting groove (30), and the outer wall of the first limiting rod (31) fits against the outer wall of the first flywheel (32).

3. A metal sheet processing saw with an anti-vibration mechanism according to claim 2, characterized in that: A transmission rod (8) is fixedly installed at the top of the transmission gear (7), and a centrifugal wheel (27) is fixedly installed at the top of the transmission rod (8). A groove (26) is opened at the top of the centrifugal wheel (27), and a locking block (25) is elastically installed inside the groove (26). A stop block (24) for blocking the rotation of the locking block (25) is fixedly installed inside the transmission disc (23).

4. A metal sheet processing saw with an anti-vibration mechanism according to claim 3, characterized in that: A gear ring (11) is fixedly installed on the outer wall of the transmission column (10), a transmission gear (12) is rotatably installed inside the tool holder (2), and a rotating gear (13) is fixedly installed on the outer wall of the second impeller (14). The transmission gear (12) and the rotating gear (13) have the same size, and the number of teeth of the gear ring (11) is greater than the number of teeth of the transmission gear (12) and the rotating gear (13).

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