Roller group hole pattern machining device and method

Abstract

The invention relates to the technical field of roller pass machining, and discloses a roller group pass machining device and a method thereof.The device comprises a machine tool, a drill rod is arranged on the machine tool, a drill bit is fixedly connected to one end of the drill rod, an extension rod is connected to the end, away from the drill bit, of the drill rod, and a driving mechanism is connected to the end, away from the drill rod, of the extension rod. After the drill bit is blocked and broken by chippings, a local closed space can be formed in the area where the drill bit is located, then softening liquid can be injected into the space to soften the chippings, the drill bit is pulled out easily through movement of the drill rod and cooperation of the pull rope, only the local area of the deep hole is damaged in the whole process, and therefore the overall strength of the deep hole is reduced little, and the service life of the deep hole is prolonged. The pull rope is simple in structure and long in service life, the drill bit can be hooked out without external hook components, time and labor are saved, the pull rope and the rotating ring can rotate relative to the drill rod when the drill rod rotates due to inertia due to the arrangement of the rotating ring, and therefore the pull rope cannot be twisted off.

Description

Technical Field

[0001] This invention belongs to the field of roll profile processing technology, and particularly relates to a roll group profile processing device and method. Background Technology

[0002] Rolls are the core and critical components in metal rolling processes. Their performance directly determines the quality of rolled products (such as dimensional accuracy and surface finish), production efficiency, and equipment operational stability. Simply put, rolls roll metal billets, ingots, and other metal blanks into cylindrical or irregularly shaped workpieces such as plates, strips, profiles, and pipes by rotating and applying pressure.

[0003] Stainless steel rolls require deep holes during production, necessitating the use of a hole-cutting device. Existing hole-cutting devices are deep-hole drilling machines. However, when debris clogs the hole, causing the drill bit to break and become stuck, hooks are typically used to attempt extraction. But the resistance of the debris causes the drill bit to jam. Therefore, a softening fluid is injected into the hole to corrode and soften the debris before the hook is used for extraction. Throughout this process, the softening fluid fills the inner wall of the hole. Even after extraction, although the hole's wear is within tolerance and it remains usable, the overall structure is damaged, reducing its strength and lifespan. Furthermore, the need for hooks means finding hooks compatible with the hole's dimensions can be challenging, making the extraction process cumbersome.

[0004] Therefore, it is necessary to invent a rolling mill roll grouping die processing device and method to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a rolling mill roll grouping die processing apparatus and method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A rolling mill group hole pattern processing device includes: a machine tool, a drill rod provided on the machine tool, a drill bit fixedly connected to one end of the drill rod, an extension rod connected to the end of the drill rod away from the drill bit, a drive mechanism connected to the end of the extension rod away from the drill rod, and a removal component provided on the drill rod to remove the drill bit from the deep hole when the drill bit breaks between the drill bit and the drill rod. The extraction assembly includes: a pull cord, an injection assembly, a sealing structure, and a sealing assembly; The pull rope connects the inner wall of the drill rod to the drill bit. An annular groove is provided on the outer side of the drill rod. The sealing structure is fitted inside the annular groove. The injection component can inject softening fluid to soften the cuttings between the drill bit and the inner wall of the deep hole. The sealing component can seal the cuttings discharge channel inside the drill rod.

[0007] Furthermore, the injection assembly includes: a ring tube, a movable groove, a hose, a channel, a push tube, an injection tube, and a fixing structure; The annular tube is disposed within the annular groove, the sealing structure is located between the drill bit and the annular tube, the movable groove is opened outside the drill rod and communicates with the annular groove, the channel is opened on the drill rod, the flexible hose is located within the movable groove, the flexible hose connects the annular tube and the channel, the drill rod has an opening communicating with the annular groove, the push tube is disposed within the opening, one end of the push tube communicates with the annular tube, and the other end communicates with the injection tube, and the fixing structure is sleeved on the outside of the injection tube.

[0008] Furthermore, the fixing structure is configured as a magnet, and the fixing structure is fixedly sleeved on the outside of the injection tube. Iron sheets are symmetrically fixedly installed on the inner wall of the port, and the fixing structure is attracted and fixed to the iron sheets.

[0009] Furthermore, the sealing structure is configured as an annular airbag, and the sealing structure is slidably sleeved outside the annular groove.

[0010] Furthermore, the enclosure assembly includes: an enclosure plate, a bracket, a rotating shaft, a connecting plate, a sealing gasket, and a torsion spring; The bracket is symmetrically fixedly installed on the inner wall of the drill pipe. The rotating shaft is rotatably installed inside the bracket. The connecting plate fixes the rotating shaft to the sealing plate. The sealing gasket is sleeved on the outside of the sealing plate. The torsion spring is sleeved on the outside of the rotating shaft. The two ends of the torsion spring are fixedly connected to the bracket and the rotating shaft respectively. When the two sealing plates are combined, they can seal the debris discharge channel inside the drill pipe. The sealing structure, hose and sealing gasket are all made of perfluoroether rubber.

[0011] Furthermore, the pull ropes are configured as multiple ropes that are equidistantly distributed around the drill bit. One end of each pull rope is fixedly connected to the drill bit, and the ends of the multiple pull ropes away from the drill bit are jointly fixedly installed with a rotating ring. The rotating ring is rotatably connected to the inner wall of the drill rod.

[0012] Furthermore, the drill rod, drill bit, annulus, push tube, injection tube, pull rope, swivel, sealing plate, bracket, rotating shaft, connecting plate, and torsion spring are all made of the same cemented carbide used in BTA drill bits.

[0013] The present invention also provides a method for processing rolls using the roll grouping pass processing apparatus as described above, comprising the following steps: S1. In use, the extension rod, drill rod and drill bit are driven to rotate by the drive mechanism to perform hole machining on the rotating roller. Cutting fluid is injected into the hole, which causes the sealing component to be pushed open with the chips. Then the chips flow out to the outside from the chip discharge channel inside the drill bit and drill rod. S2. During this process, if the debris accumulates and causes the drill bit to break, the drive mechanism is stopped. Then, the sealing component seals the debris discharge channel. The drive mechanism drives the extension rod and drill rod to move out of the deep hole, so that the pull rope is straightened. At this time, there is a gap between the drill rod and the drill bit. Some of the cutting fluid flows to the bottom of the deep hole through the gap, and some of the cutting fluid is in the debris discharge channel of the drill rod. The cutting fluid is pumped away by external extraction equipment. S3. Subsequently, the gap between the drill rod and the inner wall of the deep hole is sealed by the sealing structure. At this time, a closed area is formed between the sealing structure, the drill rod, the drill bit, the sealing component, and the inner wall of the deep hole. Then, softening fluid is injected into this area through the injection component. After the area is filled with softening fluid, the injection is stopped. After soaking for a few minutes, the blockage debris is softened. Then, the seal of the sealing structure is removed, and the extension rod, drill rod, pull rope, and drill bit are pulled out of the deep hole by the drive mechanism. Due to the softening of the debris, the resistance of the debris stuck between the drill bit and the inner wall of the deep hole to the drill bit is reduced, so that the drill bit can be easily pulled out of the deep hole. After being pulled out, the deep hole, drill rod, and drill bit are immediately flushed.

[0014] The technical effects and advantages of this invention are as follows: 1. This invention can create a locally enclosed space in the area where the drill bit is located after it breaks due to debris blockage. Then, a softening liquid can be injected into this space to soften the debris. Subsequently, the drill bit can be easily pulled out by moving the drill rod and using a pull rope. The whole process only damages a local area of ​​the deep hole, so the overall strength of the deep hole is reduced less and the service life is longer. Moreover, there is no need to use external hook-like components to hook out the drill bit, saving time and effort. 2. The present invention sets up a swivel so that when the drill rod rotates due to inertia, the pull rope and the swivel can rotate relative to the drill rod, thus preventing the pull rope from breaking. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the roll grouping pass profile processing device according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the drill pipe and drill bit assembly according to an embodiment of the present invention is shown; Figure 3 A cross-sectional view of the drill pipe and drill bit assembly according to an embodiment of the present invention is shown. Figure 4 An embodiment of the present invention is shown. Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 An embodiment of the present invention is shown. Figure 3 Enlarged structural diagram at point B; Figure 6 A schematic diagram of a portion of the structure of an embodiment of the present invention is shown; Figure 7 An embodiment of the present invention is shown. Figure 6 Enlarged structural diagram at point C; In the diagram: 1. Machine tool; 2. Drill rod; 3. Extension rod; 4. Drill bit; 5. Ring pipe; 6. Movable groove; 7. Hose; 8. Channel; 9. Push pipe; 10. Injection pipe; 11. Fixed structure; 12. Pull rope; 13. Sealing structure; 14. Enclosure plate; 15. Bracket; 16. Rotary shaft; 17. Connecting plate; 18. Sealing gasket; 19. Torsion spring; 20. Rotary ring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0017] This invention provides a device for processing grouped roll profiles, such as... Figures 1 to 7 As shown, it includes: a machine tool 1, on which a drill rod 2 is provided, one end of which is fixedly connected to a drill bit 4, and the end of the drill rod 2 away from the drill bit 4 is connected to an extension rod 3. The end of the extension rod 3 away from the drill rod 2 is connected to a drive mechanism. The drive mechanism is a drive mechanism used on a deep hole drilling lathe in the prior art to drive the extension rod to rotate and adjust the horizontal position of the extension rod. Its working principle is prior art and will not be described in detail here. The drill rod 2 is provided with a take-out component that can remove the drill bit 4 from the deep hole when the drill bit 4 breaks between the drill rod 2 and the drill bit 4. The way the extension rod 3 is connected to the drill rod 2 is the same as the way the drill rod and extension rod are connected on a deep hole drilling lathe in the prior art. The drill bit 4 is a BTA drill bit in the prior art, and the drill rod 2 is a drill rod for a BTA drill bit in the prior art. The extraction components include: pull cord 12, injection assembly, sealing structure 13, and sealing assembly; The pull rope 12 connects the inner wall of the drill rod 2 to the drill bit 4. An annular groove is provided on the outer side of the drill rod 2, and the sealing structure 13 is fitted inside the annular groove. The injection component can inject a softening liquid for softening the cuttings between the drill bit 4 and the inner wall of the deep hole. The softening liquid is a solution of 8% (mass percentage concentration) HNO3 + 2% (mass percentage concentration) HF, with the remainder being water. The sealing component can seal the cuttings discharge channel inside the drill rod 2.

[0018] The rolled rolls being processed are stainless steel rolled rolls.

[0019] In use, the extension rod 3, drill rod 2, and drill bit 4 are driven to rotate by the drive mechanism to perform hole machining on the rotary roller. Cutting fluid is injected into the hole, causing the debris to push open the sealing assembly. The debris then flows out through the debris discharge channel inside the drill bit 4 and drill rod 2 to the outside. During this process, if debris accumulates and causes the drill bit 4 to break, the drive mechanism is stopped. The sealing assembly then closes the debris discharge channel. The drive mechanism then drives the extension rod 3 and drill rod 2 to move out of the deep hole, straightening the pull rope 12. At this point, the drill rod 2 and drill bit 4 separate. There is a gap, through which some cutting fluid flows to the bottom of the deep hole, while some cutting fluid remains in the chip discharge channel of drill pipe 2. This cutting fluid is then removed by external extraction equipment. Subsequently, the gap between drill pipe 2 and the inner wall of the deep hole is sealed by sealing structure 13. At this point, a sealed area is formed between sealing structure 13, drill pipe 2, drill bit 4, sealing assembly, and the inner wall of the deep hole. Softening fluid is then injected into this area through the injection assembly. After the area is filled with softening fluid, injection is stopped. After 10 minutes of soaking, the clogging chips are softened. The sealing structure is then removed. The sealing of structure 13 is achieved by a drive mechanism that pulls the extension rod 3, drill rod 2, pull rope 12, and drill bit 4 out of the deep hole. Due to the softening of the debris, the resistance of the debris stuck between the drill bit 4 and the inner wall of the deep hole to the drill bit 4 is reduced, allowing the drill bit 4 to be easily pulled out of the deep hole. After being pulled out, the deep hole, drill rod 2, and drill bit 4 are immediately flushed to prevent the softening fluid from flowing into other areas of the inner wall of the deep hole and soaking them. Throughout the process of removing the drill bit 4, a closed area is formed at the drill bit 4, allowing the debris to soak in this area and preventing softening. The remaining area of ​​the deep hole is soaked in liquid to reduce damage to the inner wall of the deep hole. The 10-minute soaking time significantly softens the debris, minimizes damage to the inner wall of the deep hole, and minimizes damage to drill rod 2 and drill bit 4. The wear of drill rod 2 and drill bit 4 is 0.08 mm, and they can still be used. The wear on the inner wall of the deep hole after soaking is 0.2 mm, so that the soaked area of ​​the deep hole can still meet the requirements for drilling. Furthermore, the pull rope 12 eliminates the need for external hooks or similar components to hook out the drill bit 4 during the entire process, saving time and effort. In the existing technology, softening of debris involves filling the entire deep hole with softening fluid, which eventually damages the entire deep hole. Although the inner wall of the damaged deep hole can still be used, the overall strength decreases and the service life is greatly reduced. In this invention, only local areas are damaged, so the overall strength of the deep hole decreases less and the service life is longer.

[0020] like Figures 3 to 5 As shown, the injection assembly includes: a ring tube 5, a movable groove 6, a hose 7, a channel 8, a push tube 9, an injection tube 10, and a fixing structure 11; The annular tube 5 is set inside the annular groove, the sealing structure 13 is located between the drill bit 4 and the annular tube 5, the movable groove 6 is opened outside the drill rod 2 and communicates with the annular groove, the channel 8 is opened on the drill rod 2, the hose 7 is located inside the movable groove 6, the hose 7 connects the annular tube 5 and the channel 8, the drill rod 2 has a through opening that communicates with the annular groove, the push tube 9 is set inside the through opening, one end of the push tube 9 communicates with the annular tube 5, and the other end communicates with the injection tube 10, and the fixing structure 11 is sleeved on the outside of the injection tube 10.

[0021] Softening fluid is injected into the deep hole through the injection pipe 10, push pipe 9, ring pipe 5, hose 7, and channel 8. The fixed structure 11 is pushed to move along with the injection pipe 10, push pipe 9, and ring pipe 5, which compresses the sealing structure 13 and causes it to expand, thereby sealing the gap between the drill rod 2 and the inner wall of the deep hole.

[0022] like Figure 5 As shown, the fixing structure 11 is a magnet, and the fixing structure 11 is fixedly sleeved on the outside of the injection tube 10. Iron sheets are symmetrically fixedly installed on the inner wall of the port, and the fixing structure 11 is attracted and fixed to the iron sheets.

[0023] By fixing the fixed structure 11 to the iron sheet, the position of the injection tube 10 can be fixed, thereby fixing the position of the push tube 9 and the ring tube 5, so as to maintain the contact state between the sealing structure 13 and the inner wall of the deep hole.

[0024] like Figure 3 and Figure 4 As shown, the sealing structure 13 is configured as an annular airbag, and the sealing structure 13 is slidably sleeved outside the annular groove.

[0025] This allows the sealing structure 13 to expand when compressed, thereby causing its inner wall to come into contact with the inner wall of the deep hole.

[0026] like Figure 3 , Figure 6 and Figure 7 As shown, the enclosure assembly includes: enclosure plate 14, bracket 15, rotating shaft 16, connecting plate 17, sealing gasket 18, and torsion spring 19; The bracket 15 is symmetrically fixedly installed on the inner wall of the drill pipe 2. The rotating shaft 16 is rotatably installed inside the bracket 15. The connecting plate 17 fixes the rotating shaft 16 to the sealing plate 14. The sealing gasket 18 is sleeved on the outside of the sealing plate 14. The torsion spring 19 is sleeved on the outside of the rotating shaft 16. The two ends of the torsion spring 19 are fixedly connected to the bracket 15 and the rotating shaft 16 respectively. When the two sealing plates 14 are combined, they can seal the debris discharge channel inside the drill pipe 2. The sealing structure 13, the hose 7 and the sealing gasket 18 are all made of perfluoroether rubber, which makes the sealing structure 13, the hose 7 and the sealing gasket 18 resistant to the corrosion of lubricating fluid.

[0027] When the cutting fluid is continuously injected into the deep hole, it will push open a pair of sealing plates 14 with the debris, causing the pair of sealing plates 14 to separate from each other and opening the debris discharge channel. The sealing plates 14 rotate with the connecting plate 17 and the rotating shaft 16, causing the torsion spring 19 to deform. When the cutting fluid injection stops, the torsion spring 19 returns to its original position, and vice versa, the sealing plates 14 can be reset. The pair of sealing plates 14, together with the sealing gasket 18, seal the debris discharge channel. When the softening fluid is injected into the inner wall of the deep hole, the amount of softening fluid injected is constant. After the injection is completed, the softening fluid cannot push open the pair of sealing plates 14.

[0028] like Figure 3 and Figure 4 As shown, multiple pull ropes 12 are arranged in a circular pattern at equal intervals. One end of each pull rope 12 is fixedly connected to the drill bit 4. The ends of the multiple pull ropes 12 away from the drill bit 4 are fixedly mounted with a rotating ring 20. The rotating ring 20 is rotatably connected to the inner wall of the drill rod 2.

[0029] When the drill rod 2 and drill bit 4 rotate, even if the connection between the drill bit 4 and the drill rod 2 is broken and the drive mechanism is shut off, the drill rod 2 will still rotate for a period of time due to inertia. The setting of the rotating ring 20 allows the pull rope 12 and the rotating ring 20 to rotate relative to the drill rod 2 when the drill rod 2 rotates, so that the pull rope 12 will not be twisted off.

[0030] The drill pipe 2, drill bit 4, annular tube 5, push tube 9, injection tube 10, pull rope 12, swivel ring 20, sealing plate 14, bracket 15, rotating shaft 16, connecting plate 17, and torsion spring 19 are all made of the same cemented carbide used in BTA drill bits.

[0031] After being soaked in softening solution for 10 minutes, the drill rod 2, drill bit 4, ring pipe 5, push pipe 9, injection pipe 10, pull rope 12, rotating ring 20, sealing plate 14, bracket 15, rotating shaft 16, connecting plate 17, and torsion spring 19 have minimal wear and tear and can still be used normally.

[0032] Working principle: During use, the extension rod 3, drill rod 2, and drill bit 4 are driven to rotate by the drive mechanism, which performs hole machining on the rotating roller. Cutting fluid is injected into the hole, causing the debris to push open the sealing component. Then, the debris flows out to the outside through the debris discharge channel inside the drill bit 4 and drill rod 2. During this process, if the debris accumulates and blocks the drill bit 4, causing it to break, the drive mechanism and cutting fluid injection are stopped. The sealing component then closes the debris discharge channel. The drive mechanism drives the extension rod 3 and drill rod 2 to move out of the deep hole, straightening the pull rope 12. At this time, there is a gap between the drill rod 2 and the drill bit 4, and some cutting fluid flows to the bottom of the deep hole through the gap. Part of the cutting fluid is located in the chip discharge channel of drill rod 2. The cutting fluid is pumped away by external extraction equipment, pushing the fixed structure 11 to move along with the injection pipe 10, push pipe 9, and ring pipe 5. This causes the sealing structure 13 to be squeezed and expanded, thereby sealing the gap between drill rod 2 and the inner wall of the deep hole. Finally, the fixed structure 11 is fixed to the iron plate on the other side. At this time, a closed area is formed between the sealing structure 13, drill rod 2, drill bit 4, sealing assembly, and inner wall of the deep hole. Softening fluid is injected into the deep hole through the injection pipe 10, push pipe 9, ring pipe 5, hose 7, and channel 8. After the area is filled with softening fluid, the injection is stopped. After 10 minutes... After soaking, the debris blocking the hole softens, pulling the fixing structure 11 back to its original position. Conversely, the ring pipe 5 resets, releasing the pressure on the sealing structure 13. The sealing structure 13 resets, releasing the seal. The drive mechanism pulls the extension rod 3, drill rod 2, pull rope 12, and drill bit 4 out of the deep hole. Due to the softening of the debris, the resistance of the debris stuck between the drill bit 4 and the inner wall of the deep hole to the drill bit 4 is reduced, allowing the drill bit 4 to be easily pulled out of the deep hole. After being pulled out, the deep hole, drill rod 2, and drill bit 4 are immediately flushed to prevent the softening fluid from flowing into other areas of the inner wall of the deep hole for soaking. Throughout the entire process of removing the drill bit 4, the drill bit... Four points form a closed area, allowing the debris to be soaked within this area, preventing the softening liquid from soaking the rest of the deep hole, reducing damage to the inner wall of the deep hole, and by setting a soaking time of 10 minutes, the softening effect on the debris is obvious, with minimal damage to the inner wall of the deep hole, and minimal damage to drill rod 2 and drill bit 4. The wear of drill rod 2 and drill bit 4 is 0.08mm, and they can still be used. The wear on the inner wall of the deep hole caused by soaking is 0.2mm, so that the soaked area of ​​the deep hole can still meet the requirements for drilling. Furthermore, by pulling out the rope 12, the drill bit 4 can be pulled out without the need for external hooks or similar components, saving time and effort. When the drill rod 2 and drill bit 4 rotate, even if the connection between the drill bit 4 and the drill rod 2 is broken and the drive mechanism is shut off, the drill rod 2 will still rotate for a period of time due to inertia. The setting of the rotating ring 20 allows the pull rope 12 and the rotating ring 20 to rotate relative to the drill rod 2 when the drill rod 2 rotates, so that the pull rope 12 will not be twisted off.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A device for processing grouped roll profiles, characterized in that, The system includes a machine tool (1), on which a drill rod (2) is provided. One end of the drill rod (2) is fixedly connected to a drill bit (4). The end of the drill rod (2) away from the drill bit (4) is connected to an extension rod (3). The end of the extension rod (3) away from the drill rod (2) is connected to a drive mechanism. The drill rod (2) is provided with a take-out component that can remove the drill bit (4) from the deep hole when the drill bit (4) breaks between it and the drill rod (2). The take-out component includes: a pull rope (12), a liquid injection component, a sealing structure (13), and a sealing component. The pull rope (12) connects the inner wall of the drill rod (2) to the drill bit (4). An annular groove is provided on the outer side of the drill rod (2). The sealing structure (13) is fitted inside the annular groove. The liquid injection component can inject softening liquid for softening debris between the drill bit (4) and the inner wall of the deep hole. The sealing component can seal the debris discharge channel inside the drill rod (2).

2. The roll grouping pass processing device according to claim 1, characterized in that: The injection assembly includes: a ring tube (5), a movable groove (6), a hose (7), a channel (8), a push tube (9), an injection tube (10), and a fixing structure (11); the ring tube (5) is located in the ring groove, the sealing structure (13) is located between the drill bit (4) and the ring tube (5), the movable groove (6) is opened outside the drill rod (2) and communicates with the ring groove, the channel (8) is opened on the drill rod (2), the hose (7) is located in the movable groove (6), the hose (7) connects the ring tube (5) and the channel (8), the drill rod (2) has an opening that communicates with the ring groove, the push tube (9) is located in the opening, one end of the push tube (9) is connected to the ring tube (5), and the other end is connected to the injection tube (10), and the fixing structure (11) is sleeved on the outside of the injection tube (10).

3. The roll grouping pass processing device according to claim 2, characterized in that: The fixing structure (11) is a magnet. The fixing structure (11) is fixedly sleeved on the outside of the injection tube (10). Iron sheets are symmetrically fixedly installed on the inner wall of the port. The fixing structure (11) is attracted and fixed to the iron sheets.

4. The roll grouping pass processing device according to claim 3, characterized in that: The sealing structure (13) is configured as an annular airbag, and the sealing structure (13) is slidably sleeved outside the annular groove.

5. The roll grouping pass processing device according to claim 4, characterized in that: The sealing assembly includes: a sealing plate (14), a bracket (15), a rotating shaft (16), a connecting plate (17), a sealing gasket (18), and a torsion spring (19). The bracket (15) is symmetrically fixedly installed on the inner wall of the drill rod (2). The rotating shaft (16) is rotatably installed inside the bracket (15). The connecting plate (17) fixes the rotating shaft (16) to the sealing plate (14). The sealing gasket (18) is sleeved on the outside of the sealing plate (14). The torsion spring (19) is sleeved on the outside of the rotating shaft (16). The two ends of the torsion spring (19) are fixedly connected to the bracket (15) and the rotating shaft (16) respectively. When the two sealing plates (14) are combined, they can seal the debris discharge channel inside the drill rod (2). The sealing structure (13), the hose (7), and the sealing gasket (18) are all made of perfluoroether rubber.

6. The roll grouping profile processing device according to claim 5, characterized in that: The pull ropes (12) are arranged in multiple and are distributed in a circular pattern at equal intervals. One end of the pull rope (12) is fixedly connected to the drill bit (4). The ends of the multiple pull ropes (12) away from the drill bit (4) are fixedly installed with a rotating ring (20). The rotating ring (20) is rotatably connected to the inner wall of the drill rod (2).

7. The roll grouping pass processing device according to claim 6, characterized in that: The drill rod (2), drill bit (4), ring pipe (5), push pipe (9), injection pipe (10), pull rope (12), swivel (20), sealing plate (14), bracket (15), rotating shaft (16), connecting plate (17), and torsion spring (19) are all made of the hard alloy used in BTA drill bits.

8. A method for processing rolls using the roll grouping pass processing apparatus as described in claim 7, characterized in that, Includes the following steps: S1. When in use, the extension rod (3), drill rod (2) and drill bit (4) are driven to rotate by the drive mechanism to perform hole machining on the rotating roller. Cutting fluid is injected into the hole, which causes the sealing component to be pushed open with the chips, and then flows out to the outside from the chip discharge channel inside the drill bit (4) and drill rod (2). S2. During this process, if the debris accumulates and causes the drill bit (4) to break, the drive mechanism is stopped. Then the sealing component seals the debris discharge channel. The drive mechanism drives the extension rod (3) and drill rod (2) to move out of the deep hole, so that the pull rope (12) is straightened. At this time, there is a gap between the drill rod (2) and the drill bit (4). Some of the cutting fluid flows to the bottom of the deep hole through the gap, and some of the cutting fluid is located in the debris discharge channel of the drill rod (2). The cutting fluid is pumped away by the external extraction equipment. S3. Subsequently, the gap between the drill rod (2) and the inner wall of the deep hole is sealed by the sealing structure (13). At this time, a closed area is formed between the sealing structure (13), the drill rod (2), the drill bit (4), the sealing component, and the inner wall of the deep hole. Then, the softening liquid is injected into the area by the injection component. After the softening liquid fills the area, the injection is stopped. After soaking for 10 minutes, the debris that is blocked is softened. Then, the sealing of the sealing structure (13) is removed. The extension rod (3), the drill rod (2), the pull rope (12), and the drill bit (4) are pulled out of the deep hole by the drive mechanism. Due to the softening of the debris, the resistance of the debris stuck between the drill bit (4) and the inner wall of the deep hole to the drill bit (4) is reduced, so that the drill bit (4) can be easily pulled out of the deep hole. After being pulled out, the deep hole, the drill rod (2), and the drill bit (4) are immediately flushed.

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