Cutting device of vertical boring machine

Abstract

The invention belongs to the technical field of boring machine cutting, and particularly discloses a vertical boring machine cutting device which comprises a base, a cutting workbench is installed at the top of the base, a U-shaped cutting rotating table is installed at the top of the cutting workbench, and a cutting mechanical chuck is installed at the top of the cutting rotating table. A damping device is installed on the periphery of the cutting mechanical chuck. Through the arrangement of the damping device, in the cutting process, the multiple ejector rods on the mounting block can generate horizontal supporting force right facing the acting force direction of the tool bit, so that the acting force of the tool bit is balanced, in addition, a damping spring can absorb vibration generated in the cutting process, and the cutting efficiency is improved. Therefore, vibration generated during cutting of the tool bit is converted into internal energy of the damping spring, the influence of vibration on the cutting mechanical chuck is reduced, the situation that the cutting mechanical chuck shakes due to the fact that the cutting mechanical chuck suffers from acting force of the tool bit in the horizontal direction and vibration for a long time is avoided, and the stability when the cutting mechanical chuck clamps a workpiece is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of boring machine cutting technology, and particularly relates to a vertical boring machine cutting device. BACKGROUND

[0002] The vertical boring machine is a metal cutting machine tool designed for large workpiece machining requirements, mainly used for machining high-precision inner holes, deep holes and large-diameter holes.

[0003] The existing vertical boring machine cutting device needs to clamp the workpiece on the cutting machine chuck when machining the workpiece, and then uses the tool bit to process the workpiece. However, during cutting, the tool bit will exert a cutting force on the workpiece from the horizontal direction, so the cutting machine chuck will also be subjected to a horizontal force. Moreover, during cutting, the tool bit will vibrate due to cutting, which will affect the cutting machine chuck. Over time, the rotating shaft of the cutting machine chuck will loosen, thereby affecting the stability of the cutting machine chuck when clamping the workpiece.

[0004] Therefore, it is necessary to invent a vertical boring machine cutting device to solve the above problems. SUMMARY

[0005] In view of the above problems, the present application provides a vertical boring machine cutting device to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a vertical boring machine cutting device, comprising a base, a cutting workbench is installed on the top of the base, a U-shaped cutting rotary table is installed on the top of the cutting workbench, a cutting machine chuck is installed on the top of the cutting rotary table, a damping device is installed on the periphery of the cutting machine chuck, the damping device comprises a rotating ring, an arc-shaped mounting block, a top rod, a damping spring, an adjusting assembly and a driving assembly;

[0007] The rotating ring is sleeved on the periphery of the cutting machine chuck, and the rotating ring is rotatably installed on the top of the cutting rotary table. The mounting block is fixedly connected to the top of the rotating ring, and the center of the mounting block coincides with the central axis of the rotating ring. A plurality of mounting holes are evenly arranged on the side of the mounting block close to the cutting machine chuck. The top rod is slidably installed in the mounting hole, and a ball is installed on the end of the top rod close to the cutting machine chuck. The damping spring is fixedly connected to the end of the top rod away from the ball. The adjusting assembly is connected to the end of the top rod away from the ball, so that the ball on the top rod always tightly contacts the cutting machine chuck. The driving assembly is installed at the bottom of the rotating ring to drive the rotating ring to rotate.

[0008] Further, the adjusting assembly comprises an adjusting rod, a pressing ring, a one-way gear, a shaft coupling and an arc-shaped toothed plate, the adjusting rod is horizontally rotated and penetrates through and is connected to the inner wall of the mounting hole opposite to the top rod, the pressing ring is threadedly connected to the adjusting rod and is slidingly mounted in the mounting hole, the pressing ring is fixedly connected to the end of the damping spring away from the top rod, the one-way gear is connected to the end of the adjusting rod away from the top rod through the shaft coupling, the toothed plate is fixedly connected to the cutting rotary table, the axis of the toothed plate is coincident with the axis of the rotating ring, the top of the toothed plate is uniformly provided with teeth, and the teeth on the toothed plate can be engaged with the one-way gear.

[0009] Further, the driving assembly comprises a motor, a driving shaft and a driving gear, the motor is mounted on the top of the cutting rotary table, the driving shaft is drivingly connected to the motor, and the driving shaft is vertically rotated and penetrates through and is connected to the top of the cutting rotary table, the driving gear is fixedly connected to the top end of the driving shaft, the rotating ring is provided with an annular toothed groove coaxial with the rotating ring at the bottom, the inner side wall of the toothed groove is uniformly provided with teeth, and the teeth on the toothed groove are always engaged with the driving gear.

[0010] Further, a through hole is formed at the axis of the top rod, a lubricating block is slidingly mounted in the through hole, the lubricating block is in close contact with the ball, a pressing plate is arranged at the side of the lubricating block away from the ball, a pressing spring is arranged at the side of the pressing plate away from the lubricating block, a sealing plate is arranged at the side of the pressing spring away from the pressing plate, and the sealing plate is detachably connected to the opening of the through hole away from the ball.

[0011] Further, a sealing ring is arranged between the mounting block and the cutting machine chuck, the sealing ring is rotatably connected to the outer side of the cutting machine chuck, and the sealing ring is fixedly connected to the side of the mounting block close to the cutting machine chuck, an arc-shaped sealing cover is fixedly connected to the outer side edge of the sealing ring, the two ends of the sealing cover are fixedly connected to the two ends of the mounting block, the bottom of the sealing cover is in close contact with the top of the rotating ring, and the diameter of the sealing cover gradually increases from top to bottom.

[0012] Further, the side of the mounting block away from the cutting machine chuck is fixedly connected with a U-shaped baffle, and the plurality of one-way gears are located in the inner side region of the baffle.

[0013] Further, the two sides of the baffle are fixedly connected with bristles, the bristles are located on the same operating track with the toothed plate, and the bottom of the bristle can be in contact with the top of the toothed plate.

[0014] Further, the top of the rotating ring is fixedly connected with an arc-shaped protective plate, the top of the arc-shaped protective plate is higher than the top of the cutting machine chuck, the arc-shaped protective plate is coaxial with the rotating ring, the arc-shaped protective plate is opposite to the mounting block, and the side of the arc-shaped protective plate close to the cutting machine chuck is fixedly connected with a buffer plate.

[0015] Further, the vertical boring machine cutting device further comprises a spindle, a tool head is connected to the bottom end of the spindle, and the length of the tool head extending out of the bottom end of the spindle is less than the height from the top of the arc-shaped protective plate to the top of the cutting machine chuck.

[0016] Technical effects and advantages of the present application:

[0017] 1、The damping device is arranged, a plurality of top rods on the mounting block can generate horizontal supporting force in the direction opposite to the force acting on the tool head during cutting, thereby balancing the force acting on the tool head, in addition, when the vibration generated during cutting of the tool head is transmitted to the top rods through the cutting machine chuck, the damping spring can absorb the vibration, thereby converting the vibration generated during cutting of the tool head into internal energy of the damping spring, thereby reducing the influence of the vibration on the cutting machine chuck, avoiding shaking of the cutting machine chuck due to long-time bearing of the horizontal force and vibration of the tool head, and ensuring the stability of the cutting machine chuck when clamping the workpiece;

[0018] 2、The adjusting rod is arranged, during rotation of the mounting block driven by the rotating ring, the one-way gear can drive the adjusting rod to rotate through the shaft coupling under the action of the teeth on the top of the toothed plate, and with rotation of the adjusting rod, the compression ring can move towards the top rods under the action of the adjusting rod, thereby compressing the damping spring, and with compression of the damping spring, the thrust of the damping spring on the top rods also increases, thereby enabling the top rods to generate sufficient supporting force on the cutting machine chuck from the horizontal direction, and ensuring good supporting effect of the top rods on the cutting machine chuck;

[0019] 3、The lubricating block is arranged, during rolling of the ball along the cutting machine chuck, the lubricating block can always be in close contact with the ball under the action of the compression spring, thereby always lubricating the ball, thereby reducing the friction between the ball and the cutting machine chuck during rolling of the ball along the cutting machine chuck, and enabling the ball to roll more stably along the cutting machine chuck. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present application;

[0021] Figure 2 is a schematic diagram of the overall structure of the present application;

[0022] Figure 3 is a schematic diagram of the overall structure of the present application;

[0023] Figure 4 is a schematic diagram of the overall structure of the present application;

[0024] Figure 5 This is a three-dimensional sectional view of the mounting block in this invention;

[0025] Figure 6 This is a three-dimensional sectional view of the push rod in this invention;

[0026] Figure 7 This is a first three-dimensional schematic diagram of the structure of the vibration damping device, sealing ring, and sealing cover in this invention;

[0027] Figure 8 This is a second perspective view of the structure of the vibration damping device, sealing ring, and sealing cover in this invention.

[0028] In the diagram: 1. Base; 2. Cutting worktable; 3. Cutting rotary table; 4. Cutting machine chuck; 5. Rotary ring; 6. Mounting block; 7. Push rod; 8. Vibration damping spring; 9. Ball bearing; 10. Adjusting rod; 11. Pressure ring; 12. One-way gear; 13. Coupling; 14. Gear plate; 15. Motor; 16. Drive shaft; 17. Drive gear; 18. Lubricating block; 19. Pressure plate; 20. Compression spring; 21. Sealing plate; 22. Sealing ring; 23. Sealing cover; 24. Baffle; 25. Brush bristles; 26. Arc-shaped protective plate; 27. Buffer plate; 28. Spindle; 29. ​​Cutting head. Detailed Implementation

[0029] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention provides as follows... Figures 1 to 8 The vertical boring machine cutting device shown includes a base 1, a cutting worktable 2 mounted on the top of the base 1, a U-shaped cutting rotary table 3 mounted on the top of the cutting worktable 2, a cutting machine chuck 4 mounted on the top of the cutting machine chuck 3, and a vibration damping device mounted around the cutting machine chuck 4. The vibration damping device includes a rotating ring 5, an arc-shaped mounting block 6, a push rod 7, a vibration damping spring 8, an adjustment assembly, and a drive assembly. The drive assembly includes a motor 15, a drive shaft 16, and a drive gear 17. The motor 15 is mounted on the top of the cutting rotary table 3, and the drive shaft 16 is connected to the motor 15 for transmission. The drive shaft 16 is vertically rotatably inserted through the top of the cutting rotary table 3. The drive gear 17 is fixedly sleeved on the top of the drive shaft 16. The bottom of the rotating ring 5 has an annular toothed groove coaxial with it. The inner sidewall of the toothed groove is evenly distributed with teeth, and the teeth on the toothed groove are always meshed with the drive gear 17.

[0030] A rotating ring 5 is sleeved around the outer periphery of the cutting machine chuck 4, and is rotatably mounted on the top of the cutting rotary table 3. A mounting block 6 is fixedly connected to the top of the rotating ring 5, and the center of the mounting block 6 coincides with the central axis of the rotating ring 5. Several mounting holes are evenly and horizontally formed on the side of the mounting block 6 near the cutting machine chuck 4. A push rod 7 is slidably mounted in the mounting holes, and a ball bearing 9 is mounted on the end of the push rod 7 near the cutting machine chuck 4. A damping spring 8 is fixedly connected to the end of the push rod 7 away from the ball bearing 9. An adjusting assembly is connected to the end of the push rod 7 away from the ball bearing 9, used to adjust the push rod... The ball bearing 9 on the rod 7 always remains in close contact with the cutting machine chuck 4. The drive assembly is installed at the bottom of the rotating ring 5 to drive the rotating ring 5 to rotate. The vertical boring machine cutting device also includes a spindle 28. The bottom end of the spindle 28 is connected to a cutter head 29. The length of the cutter head 29 extending beyond the bottom end of the spindle 28 is less than the height from the top of the arc-shaped protective plate 26 to the top of the cutting machine chuck 4. The motor 15 is connected to the control system of the vertical boring machine cutting device, so that it can drive the rotating ring 5 to rotate through the drive gear 17, and ensure that the mounting block 6 is always located in the direction directly opposite to the cutting of the cutter head 29.

[0031] By incorporating a vibration damping device, the workpiece is clamped using the cutting machine chuck 4 during machining. The spindle 28 is then activated, driving the cutter head 29 to perform cutting operations. During cutting, the motor 15 starts, driving the drive gear 17 via the drive shaft 16. As the drive gear 17 rotates, it engages with the teeth in the gear groove to rotate the rotating ring 5. This ensures that the mounting block 6 remains positioned on the side of the cutting machine chuck 4 directly opposite the cutter head 29, driven by the rotating ring 5. During the movement of the mounting block 6... During the process, the ball bearing 9 at the end of the push rod 7 can roll against the side of the cutting machine chuck 4. After the position of the mounting block 6 is adjusted, the multiple push rods 7 on the mounting block 6 can be evenly supported on the side of the cutting machine chuck 4 facing the cutter head 29. At this time, as the spindle 28 is started, the spindle 28 can drive the cutter head 29 to perform cutting operations on the workpiece. As the cutting proceeds, when the cutter head 29 exerts a horizontal force on the cutting machine chuck 4, the multiple push rods 7 can generate a horizontal supporting force in the direction of the force exerted by the cutter head 29, thereby balancing the force exerted by the cutter head 29.

[0032] Furthermore, when the vibration generated during the cutting process of the cutter head 29 is transmitted to the push rod 7 through the cutting machine chuck 4, the damping spring 8 can absorb the vibration, thereby converting the vibration generated during the cutting process of the cutter head 29 into the internal energy of the damping spring 8, thereby reducing the impact of vibration on the cutting machine chuck 4, preventing the cutting machine chuck 4 from shaking due to the horizontal force and vibration of the cutter head 29 for a long time, and ensuring the stability of the cutting machine chuck 4 when clamping the workpiece.

[0033] like Figures 2 to 8As shown, the adjustment assembly includes an adjustment rod 10, a pressure ring 11, a one-way gear 12, a coupling 13, and an arc-shaped toothed plate 14. The adjustment rod 10 is horizontally rotatable and inserted through the inner wall of the mounting hole facing the top rod 7. The pressure ring 11 is threaded onto the adjustment rod 10 and is slidably installed in the mounting hole. The pressure ring 11 is fixedly connected to the end of the damping spring 8 away from the top rod 7. The one-way gear 12 is connected to the end of the adjustment rod 10 away from the top rod 7 through the coupling 13. The toothed plate 14 is fixedly connected to the cutting rotary table 3, and the axis of the toothed plate 14 coincides with the axis of the rotating ring 5. The top of the toothed plate 14 has teeth evenly distributed, and the teeth on the toothed plate 14 can mesh with the one-way gear 12.

[0034] During the process of the push rod 7 supporting and damping the cutting machine chuck 4, the thrust of the damping spring 8 on the push rod 7 may decrease with long-term use. At this time, by setting an adjusting rod 10, when the rotating ring 5 drives the mounting block 6 to rotate, when the one-way gear 12 on the adjusting rod 10 moves against the top of the toothed plate 14, the one-way gear 12 can drive the adjusting rod 10 to rotate through the coupling 13 under the action of the teeth on the top of the toothed plate 14. As the adjusting rod 10 rotates, the pressure ring 11 can move towards the push rod 7 under the action of the adjusting rod 10, thereby compressing the damping spring 8. As the damping spring 8 is compressed, the thrust of the damping spring 8 on the push rod 7 also increases, so that the push rod 7 can generate sufficient support force for the cutting machine chuck 4 in the horizontal direction, ensuring that the push rod 7 provides good support for the cutting machine chuck 4.

[0035] When the damping spring 8 provides sufficient support to the push rod 7, as the one-way gear 12 continues to roll along the top of the toothed plate 14, the damping spring 8 cannot be further compressed. At this time, the coupling 13 can idle, thus ensuring that the one-way gear 12 can move smoothly along the top of the toothed plate 14 while avoiding excessive compression of the damping spring 8 by the pressure ring 11.

[0036] By providing a one-way gear 12, when the rotating ring 5 drives the mounting block 6 to rotate in the opposite direction, the one-way gear 12 rolls against the top of the toothed plate 14 and can rotate freely, thereby keeping the adjusting rod 10 stationary and preventing the damping spring 8, which is pressed by the pressure ring 11, from loosening.

[0037] like Figure 6As shown, a through hole is provided through the axis of the push rod 7, and a lubricating block 18 is slidably installed in the through hole. The lubricating block 18 is in contact with the ball 9. The lubricating block 18 is made of solid carrier (such as high-density polyethylene) + high viscosity grease (such as lithium grease, polyurea grease). A pressure plate 19 is provided on the side of the lubricating block 18 away from the ball 9. A compression spring 20 is provided on the side of the pressure plate 19 away from the lubricating block 18. A sealing plate 21 is provided on the side of the compression spring 20 away from the pressure plate 19. The sealing plate 21 is detachably connected to the opening at the end of the through hole away from the ball 9.

[0038] By providing a lubricating block 18, as the ball 9 rolls against the cutting machine chuck 4, the lubricating block 18 can always be in contact with the ball 9 under the action of the compression spring 20, thereby always lubricating the ball 9. As a result, the friction between the ball 9 and the cutting machine chuck 4 is reduced, making the ball 9 roll against the cutting machine chuck 4 more smoothly.

[0039] like Figure 2 , Figure 7 and Figure 8 As shown, a sealing ring 22 is provided between the mounting block 6 and the cutting machine chuck 4. The sealing ring 22 is rotatably sleeved on the outside of the cutting machine chuck 4, and the sealing ring 22 is fixedly connected to the side of the mounting block 6 near the cutting machine chuck 4. An arc-shaped sealing cover 23 is fixedly connected to the outer edge of the sealing ring 22. The two ends of the sealing cover 23 are fixedly connected to the two ends of the mounting block 6 respectively. The bottom of the sealing cover 23 is in contact with the top of the rotating ring 5, and the diameter of the sealing cover 23 gradually increases from top to bottom. A U-shaped baffle 24 is fixedly connected to the side of the mounting block 6 away from the cutting machine chuck 4, and multiple one-way gears 12 are located in the inner area of ​​the baffle 24. Brush bristles 25 are fixedly connected to both sides of the baffle 24. The brush bristles 25 and the toothed plate 14 are located on the same running trajectory, and the bottom of the brush bristles 25 can contact the top of the toothed plate 14.

[0040] By providing a sealing ring 22 and a sealing cover 23, during the cutting process of the cutter head 29, the sealing ring 22 and the sealing cover 23 can cooperate with each other to block the gap between the mounting block 6 and the cutting machine chuck 4, as well as the gap between the rotating ring 5 and the cutting machine chuck 4, thereby preventing metal chips from getting stuck in the gap between the mounting block 6 and the cutting machine chuck 4, as well as the gap between the rotating ring 5 and the cutting machine chuck 4.

[0041] By providing a baffle 24, the one-way gear 12 can be shielded and protected, preventing metal shavings from falling on the one-way gear 12 and causing it to get stuck. By providing a brush 25, before the rotating ring 5 drives the one-way gear 12 to mesh with the teeth on the toothed plate 14, the brush 25 can clean the teeth on the top of the toothed plate 14 before the one-way gear 12 contacts the toothed plate 14, preventing the presence of metal shavings from affecting the meshing of the one-way gear 12 and the toothed plate 14.

[0042] like Figure 1 and Figure 2 As shown, an arc-shaped protective plate 26 is fixedly connected to the top of the rotating ring 5, and the top of the arc-shaped protective plate 26 is higher than the top of the cutting machine chuck 4. The arc-shaped protective plate 26 is made of high-strength plastic, and the length of the arc-shaped protective plate 26 is equal to half the circumference of the rotating ring 5. The arc-shaped protective plate 26 and the rotating ring 5 are coaxial, and the arc-shaped protective plate 26 and the mounting block 6 are directly opposite each other. A buffer plate 27 is fixedly connected to the side of the arc-shaped protective plate 26 near the cutting machine chuck 4. The buffer plate 27 is made of foamed plastic.

[0043] During the cutting process, the cutting head 29 may break off due to impact. The broken cutting head 29 will then scatter due to inertia, posing a danger. However, by providing an arc-shaped protective plate 26, the cutting head 29 is shielded from the side during cutting. When the cutting head 29 breaks off, the broken piece is blocked by the arc-shaped protective plate 26 and can be trapped in the buffer plate 27 under inertia. This, combined with the arc-shaped protective plate 26, intercepts the broken cutting head 29, preventing it from scattering. Meanwhile, the damping spring 8 and the push rod 7 work together to dampen the cutting machine chuck 4, reducing the impact of the vibration generated when the cutting head 29 breaks off on the cutting machine chuck 4.

[0044] It should be noted that, based on the above embodiments of the present invention, those skilled in the art can fully realize the scope of the independent claims and dependent claims of the present invention, and the implementation process and methods are the same as those in the above embodiments; and the parts of the present invention not described in detail belong to the well-known technology in the art. However, the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the protection scope of the present invention.

Claims

1. A vertical boring machine cutting device, comprising a base (1), characterized in that: The base (1) is equipped with a cutting worktable (2) on top, a U-shaped cutting rotary table (3) is equipped with a cutting machine chuck (4) on top of the cutting worktable (2), and a vibration damping device is installed around the cutting machine chuck (4). The vibration damping device includes a rotating ring (5), an arc-shaped mounting block (6), a push rod (7), a vibration damping spring (8), an adjustment component, and a drive component. The rotating ring (5) is sleeved around the cutting machine chuck (4), and the rotating ring (5) is rotatably mounted on the top of the cutting rotary table (3). The mounting block (6) is fixedly connected to the top of the rotating ring (5), and the center of the mounting block (6) coincides with the central axis of the rotating ring (5). The mounting block (6) has several mounting holes evenly and horizontally opened on the side of the cutting machine chuck (4). The push rod (7) is slidably mounted in the mounting holes, and a ball (9) is mounted on the end of the push rod (7) near the cutting machine chuck (4). The damping spring (8) is fixedly connected to the end of the push rod (7) away from the ball (9). The adjusting component is connected to the end of the push rod (7) away from the ball (9) to keep the ball (9) on the push rod (7) always close to the cutting machine chuck (4). The driving component is installed at the bottom of the rotating ring (5) to drive the rotating ring (5) to rotate.

2. The vertical boring machine cutting device according to claim 1, characterized in that: The adjustment assembly includes an adjustment rod (10), a pressure ring (11), a one-way gear (12), a coupling (13), and an arc-shaped toothed plate (14). The adjustment rod (10) is horizontally rotatable and inserted through the inner wall of the mounting hole facing the top rod (7). The pressure ring (11) is threaded onto the adjustment rod (10) and is slidably installed in the mounting hole. The pressure ring (11) is fixedly connected to the end of the damping spring (8) away from the top rod (7). The one-way gear (12) is connected to the end of the adjustment rod (10) away from the top rod (7) through the coupling (13). The toothed plate (14) is fixedly connected to the cutting rotary table (3), and the axis of the toothed plate (14) coincides with the axis of the rotating ring (5). The top of the toothed plate (14) is evenly distributed with teeth, and the teeth on the toothed plate (14) can mesh with the one-way gear (12).

3. The vertical boring machine cutting device according to claim 2, characterized in that: The drive assembly includes a motor (15), a drive shaft (16), and a drive gear (17). The motor (15) is mounted on the top of the cutting rotary table (3). The drive shaft (16) is connected to the motor (15) in a transmission manner, and the drive shaft (16) is vertically rotated and inserted through the top of the cutting rotary table (3). The drive gear (17) is fixedly sleeved on the top of the drive shaft (16). The bottom of the rotating ring (5) is provided with an annular toothed groove coaxial with it. The inner sidewall of the toothed groove is evenly distributed with teeth, and the teeth on the toothed groove are always meshed with the drive gear (17).

4. The vertical boring machine cutting device according to claim 3, characterized in that: A through hole is provided through the axis of the top rod (7). A lubricating block (18) is slidably installed in the through hole, and the lubricating block (18) is in contact with the ball (9). A pressure plate (19) is provided on the side of the lubricating block (18) away from the ball (9). A compression spring (20) is provided on the side of the pressure plate (19) away from the lubricating block (18). A sealing plate (21) is provided on the side of the compression spring (20) away from the pressure plate (19). The sealing plate (21) is detachably connected to the end of the through hole away from the ball (9).

5. The vertical boring machine cutting device according to claim 4, characterized in that: A sealing ring (22) is provided between the mounting block (6) and the cutting machine chuck (4). The sealing ring (22) is rotatably sleeved on the outside of the cutting machine chuck (4), and the sealing ring (22) is fixedly connected to the side of the mounting block (6) near the cutting machine chuck (4). An arc-shaped sealing cover (23) is fixedly connected to the outer edge of the sealing ring (22). The two ends of the sealing cover (23) are fixedly connected to the two ends of the mounting block (6), respectively. The bottom of the sealing cover (23) fits against the top of the rotating ring (5), and the diameter of the sealing cover (23) gradually increases from top to bottom.

6. The vertical boring machine cutting device according to claim 5, characterized in that: The mounting block (6) is fixedly connected to a U-shaped baffle (24) on the side away from the cutting machine chuck (4), and multiple one-way gears (12) are located in the inner area of ​​the baffle (24).

7. The vertical boring machine cutting device according to claim 6, characterized in that: Both sides of the baffle (24) are fixedly connected with bristles (25). The bristles (25) and the toothed plate (14) are located on the same running trajectory, and the bottom of the bristles (25) can contact the top of the toothed plate (14).

8. The vertical boring machine cutting device according to claim 7, characterized in that: The top of the rotating ring (5) is fixedly connected to an arc-shaped protective plate (26), and the top of the arc-shaped protective plate (26) is higher than the top of the cutting machine chuck (4). The arc-shaped protective plate (26) is coaxial with the rotating ring (5), and the arc-shaped protective plate (26) is directly opposite the mounting block (6). A buffer plate (27) is fixedly connected to the side of the arc-shaped protective plate (26) near the cutting machine chuck (4).

9. The vertical boring machine cutting device according to claim 8, characterized in that: The vertical boring machine cutting device also includes a spindle (28), the bottom end of which is connected to a cutter head (29). The length of the cutter head (29) extending out of the bottom end of the spindle (28) is less than the height from the top of the arc-shaped protective plate (26) to the top of the cutting machine chuck (4).

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