Integrated chip removal guide device and method based on grinding worktable

Abstract

This invention discloses an integrated chip removal guide device based on a grinding worktable, including a machine bed. One side of the machine bed is a chip removal position, and a chip removal section is provided on one side of the chip removal position. The outer side of the chip removal section has a separation section, and a recovery section is provided on the side of the separation section away from the chips. The chip removal section includes: a body, located at the bottom of the machine bed to support the machine bed, and a chip removal groove formed on the inner side of the body for contacting the chip removal position; and a conveyor belt, located inside the body and extending through the body into the chip removal groove. A motor assembly for driving the conveyor belt is provided on the inner side of the conveyor belt. This application, by providing a chip removal section that facilitates chip recovery during use, allows chips to be collected from the edge of the machine bed during use, reducing human intervention and minimizing chip residue during recovery.

Description

Technical Field

[0001] This invention relates to the field of grinding chip treatment technology, specifically to an integrated chip removal guide groove device and method based on a grinding worktable. Background Technology

[0002] Grinding is a machining method for removing material. It refers to the process of removing excess material from a workpiece using abrasives or grinding wheels. Grinding is one of the most widely used material removal methods.

[0003] Grinding is a cutting process that uses high-speed rotating grinding wheels and other abrasive tools to process the surface of workpieces. Grinding is used to process the internal and external cylindrical surfaces, conical surfaces, and planes of various workpieces, as well as special and complex shaped surfaces such as threads, gears, and splines.

[0004] Most existing grinding processes are completed using machine tools. The machine tool spindle drives the workpiece to rotate continuously, or the cutting tool rotates at high speed to complete the grinding of the workpiece. After the workpiece is ground, a large amount of chips are generated. The chips accumulate at the chip removal position of the machine tool. During the grinding process, coolant is added to the grinding position to ensure the stability of the workpiece. Continuous grinding leads to the accumulation of chips. A large amount of cutting fluid mixed with chips remains at the chip removal position of the machine tool, which is quite troublesome to clean. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an integrated chip removal guide groove device and method based on a grinding worktable, which solves the problem that continuous grinding processes lead to chip accumulation and a large amount of cutting fluid mixed with chips remaining at the chip removal position of the machine tool, making cleaning quite troublesome.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated chip removal guide groove device based on a grinding worktable, comprising a machine tool bed, wherein one side of the bed is a chip removal position, a chip removal section is provided on one side of the chip removal position, a separation section is provided on the outer side of the chip removal section, and a recovery section is provided on the side of the separation section away from the chips, the chip removal section comprising:

[0007] The machine body is located at the bottom of the bed to support the bed, and the inner side of the machine body forms a chip removal groove for contacting the chip removal position of the bed.

[0008] A conveyor belt is installed inside the machine body and extends through the machine body to the inside of the chip removal trough. A motor assembly for driving the conveyor belt is installed on the inner side of the conveyor belt, and the motor assembly is fixed inside the machine body.

[0009] The absorbent belt is fixedly attached to the inside of the conveyor belt to absorb cutting fluid. The machine body has an internal squeezing block for squeezing the absorbent belt.

[0010] In one possible implementation, the squeezing block has a scraper above it that can contact the outer surface of the absorbent belt. The scraper is inclined to guide debris, and the squeezing block squeezes the absorbent belt during the movement of the conveyor belt.

[0011] In one possible implementation, the motor assembly includes an output motor that provides power and a pulley fitted onto the output end of the output motor, wherein the conveyor belt is fitted onto the outer wall of the pulley, and the conveyor belt is located below the chip removal position of the bed.

[0012] In one possible implementation, the separating section includes:

[0013] A connecting pipe is flexibly installed inside the machine body and is located at the bottom of the chip discharge trough. The outer side of the connecting pipe is connected to a throwing plate, wherein the throwing plate is provided with a discharge end and a feed inlet.

[0014] The servo motor is fixed inside the machine body, and its output end is connected to the throwing plate to drive the throwing plate to swing.

[0015] A triangular plate, fixed inside the throwing plate, is used to divide the discharge end of the throwing plate into two. An electromagnet is located on the outer side of the throwing plate outlet, and the electromagnet is fixed inside the machine body.

[0016] In one possible implementation, the feed inlet is connected to a connecting pipe, which is flexibly configured to guide debris from inside the chip discharge trough to inside the throwing plate.

[0017] In one possible implementation, the inside of the throwing plate is provided with multiple stepped protrusions to assist the movement of debris and cutting fluid during the movement of the throwing plate. The outer side of the throwing plate extends a cylindrical protrusion coaxial with the output end of the servo motor and is movably inserted into the inside of the machine body.

[0018] In one possible implementation, the recycling unit includes:

[0019] The discharge cylinder is installed at an angle inside the machine body, and a drive assembly is provided on the inner side of the discharge cylinder. The drive assembly is fixed inside the machine body.

[0020] A flow guide channel is formed on the inner wall of the discharge cylinder, and the outer side of the flow guide channel is covered with a filter plate for filtering cutting fluid.

[0021] The recycling bin is fixed inside the machine body, and a liquid injection hole is provided on the outside of the recycling bin.

[0022] In one possible implementation, the drive assembly includes a drive motor and a helical blade fixed to the output end of the drive motor. The helical blade extends into the discharge cylinder and contacts the guide groove and the inner wall of the discharge cylinder. The electromagnet is energized to magnetically attract debris inside the discharge cylinder.

[0023] This application also provides a method of using an integrated chip conveying guide device, including the following steps:

[0024] S1. Use a brush to clean the debris inside the bed and move it into the chip discharge chute. The debris flows inside the inclined chip discharge chute and enters the inside of the conveyor belt.

[0025] S2. The output motor starts and drives the conveyor belt through the pulley. The movement of the conveyor belt causes the debris to change position. During the movement, the scraper scrapes the debris off, and the extrusion block squeezes the water-absorbing belt at the same time.

[0026] S3. The debris and cutting fluid enter the interior of the throwing plate through the connecting pipe. The servo motor drives the throwing plate to swing back and forth, sending the debris and cutting fluid from the discharge end to the discharge cylinder.

[0027] S4. When the electromagnet is working, it magnetically attracts the debris, causing the debris to change position. Driven by the drive component, the debris moves from the top of the discharge cylinder, and the cutting fluid moves through the guide channel inside the discharge cylinder, thus being recycled into the recovery box. The debris is then discharged from the machine body.

[0028] In one possible implementation, in S2, the extrusion block extrudes the absorbent belt, which can use the cutting fluid absorbed inside the absorbent belt to flush the chips located on the inner wall of the chip discharge groove.

[0029] Beneficial effects

[0030] This application provides an integrated chip removal guide groove device and method based on a grinding worktable. Compared with the prior art, it has the following advantages:

[0031] (1) This application sets up a chip discharge section that facilitates the recycling of chips during use. During use, chips can be collected from the edge of the bed, reducing human intervention. During recycling, the residue of chips can be reduced, thereby achieving a good recycling effect.

[0032] (2) This application sets up a separation unit that separately processes the internal cutting fluid and debris during the recycling process. The cutting fluid and debris separate during the movement, which facilitates the separation and processing of debris and cutting fluid. This allows for multi-stage processing and ensures the stability of debris and cutting fluid recycling.

[0033] (3) The recovery unit of this application, which performs separate path recovery during the return of chips and cutting fluid, can suspend the chips on top of the cutting fluid during the recovery process. While performing the recovery movement, it can divert excess cutting fluid into the recovery path of the cutting fluid to ensure stable separation. Attached Figure Description

[0034] Figure 1 This is a perspective view of the present invention;

[0035] Figure 2 This is a cross-sectional view of the body of the present invention;

[0036] Figure 3 This is a schematic diagram of the internal structure of the body of the present invention;

[0037] Figure 4 This is a side view of the internal structure of the machine body of the present invention;

[0038] Figure 5 This is a schematic diagram of the removal process inside the body according to the present invention;

[0039] Figure 6 This is a top view of the internal structure of the machine body of the present invention;

[0040] Figure 7 This is a side view of the discharge cylinder structure of the present invention;

[0041] Figure 8 This is a schematic diagram of the internal structure of the material ejector plate of the present invention;

[0042] Figure 9 This is an exploded view of the internal structure of the discharge cylinder of the present invention;

[0043] Figure 10 This is a cross-sectional view of the internal structure of the discharge cylinder of the present invention.

[0044] In the diagram: 1. Bed, 21. Chip removal trough, 22. Motor assembly, 23. Conveyor belt, 24. Scraper, 25. Machine body, 26. Extrusion block, 27. Water suction belt, 31. Throwing plate, 32. Connecting pipe, 33. Servo motor, 34. Triangular plate, 35. Discharge end, 36. Feed port, 37. Electromagnet, 41. Discharge cylinder, 42. Drive assembly, 43. Guide channel, 44. Filter plate, 45. Recovery box. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0046] Please see Figure 1-10 This application provides three implementation methods, as follows:

[0047] Implementation Method 1

[0048] An integrated chip removal guide groove device based on a grinding worktable includes a machine tool bed 1, wherein one side of the bed 1 is a chip removal position, which is used to recover cutting fluid and grinding chips. A chip removal section is provided on one side of the chip removal position of the bed 1, and a separation section is provided on the outer side of the chip removal section. A recovery section is provided on the side of the separation section away from the chips. The chip removal section includes:

[0049] The machine body 25 is located at the bottom of the bed 1 to support the bed 1. The inner side of the machine body 25 forms a chip removal groove 21 for contacting the chip removal position of the bed 1.

[0050] The conveyor belt 23 is located inside the machine body 25 and extends through the machine body 25 to the inside of the chip discharge trough 21. The inner side of the conveyor belt 23 is provided with a motor assembly 22 for driving the conveyor belt 23, and the motor assembly 22 is fixed inside the machine body 25.

[0051] The absorbent belt 27 is fixedly attached to the inner side of the conveyor belt 23 to absorb cutting fluid. The shape of the absorbent belt 27 is adapted to the conveyor belt 23, and both are arranged in a ring shape to form a complete ring shape. The machine body 25 is provided with a squeezing block 26 for squeezing the absorbent belt 27. The squeezing block 26 is fixed to the inner wall of the machine body.

[0052] In this application, in order to facilitate the recycling of the debris mixture after cleaning the bed 1, the conveyor belt 23 is used to drive its movement, which can fix the recycling position. In order to ensure that the cutting fluid can flow inside the bed 1, the recess inside the bed 1 is inclined, and the outer surface of the absorbent belt 27 is flat.

[0053] In one possible implementation, the squeezing block 26 has a scraper 24 above it that can contact the outer surface of the absorbent belt 27. The scraper 24 is set in an inclined shape to guide the debris. The scraper 24 is fixed inside the machine body. The squeezing block 26 squeezes the absorbent belt 27 during the movement of the conveyor belt 23.

[0054] In this application, the scraper 24 can scrape off the debris on the surface of the absorbent belt 27, thereby facilitating the guidance of the debris's movement and enabling it to move along the recycling route. Furthermore, the squeezing block 26 can squeeze the cutting fluid inside the absorbent belt 27, causing it to flow out. The flow of the cutting fluid can flush off the debris adsorbed on the inner wall of the chip discharge groove 21.

[0055] In one possible implementation, the motor assembly 22 includes an output motor that provides power and a pulley fixedly sleeved on the output end of the output motor, wherein the output motor is fixed inside the machine body, and the conveyor belt 23 is sleeved on the outer wall of the pulley, wherein the conveyor belt 23 is located below the chip removal position of the bed 1.

[0056] In this application, the motor assembly 22 can drive the conveyor belt 23 to change position, and the conveyor belt 23 will fit inside the chip discharge trough 21, generating movement between them during operation, and ensuring the stability of the shape and movement path of the conveyor belt 23.

[0057] Implementation Method 2

[0058] This implementation includes implementation one, and the technical solution that differs from implementation one is that the separation part includes:

[0059] The connecting pipe 32 is flexibly installed inside the machine body 25 and is located at the bottom of the chip discharge groove 21. The outer side of the connecting pipe 32 is connected to the throwing plate 31, wherein the throwing plate 31 is provided with a discharge end 35 and a feed inlet 36.

[0060] The servo motor 33 is fixed inside the machine body 25, and its output end is connected to the throwing plate 31 to drive the throwing plate 31 to swing.

[0061] A triangular plate 34 is fixed inside the throwing plate 31 and is used to divide the discharge end 35 of the throwing plate 31 into two parts. An electromagnet 37 is provided on the outer side of the outlet of the throwing plate 31 and is fixed inside the machine body 25.

[0062] In this application, the triangular plate 34 can be used to form two discharge ends 35, thereby enabling the recovery of cutting fluid and debris through two separate recovery paths, ensuring recovery efficiency and reducing clogging when the workload of recovery increases.

[0063] In one possible implementation, the feed inlet 36 is connected to the connecting pipe 32, which is flexibly configured to guide the debris inside the chip discharge trough 21 to the inside of the throwing plate 31. Both ends of the connecting pipe 32 are plug-in.

[0064] In this application, the connecting pipe 32 acts as a transfer between the chip removal groove 21 and the throwing plate 31. The throwing plate 31 will swing during operation. In order to ensure that the chip removal groove 21 can stably feed the chips and cutting fluid into the throwing plate 31, the flexible connecting pipe 32 can deform the swing of the throwing plate 31 so as to feed the chips and cutting fluid into the throwing plate 31.

[0065] In one possible implementation, the inside of the throwing plate 31 is provided with multiple stepped protrusions to assist the movement of debris and cutting fluid during the movement of the throwing plate 31. The outer side of the throwing plate 31 extends a cylindrical protrusion coaxial with the output end of the servo motor 33 and is movably inserted into the inside of the machine body 25, so that the throwing plate 31 can swing around the axis of the cylindrical protrusion.

[0066] In this application, the interior of the throwing plate 31 is configured with stepped protrusions to block debris. When the throwing plate 31 swings, the cutting fluid and debris mixture inside it flows, allowing the mixture inside the throwing plate 31 to be thrown out. With the stepped protrusions, when the throwing plate 31 swings and is recycled, the debris inside it settles at the bottom of the cutting fluid and comes into contact with the protrusions. Under the obstruction of the protrusions, some debris remains on the outside of the protrusions. Thus, when the debris swings to the upper position, it is magnetically attracted by the electromagnet 37, forming a debris recycling.

[0067] Implementation Method 3

[0068] This implementation includes an implementation second, and the technical solution that differs from the implementation second is that the recycling unit includes:

[0069] The discharge cylinder 41 is inclined and fixed inside the machine body 25. The drive assembly 42 is provided on the inner side of the discharge cylinder 41. The drive assembly 42 is fixed inside the machine body 25. In order to avoid the movement of the drive assembly 42 restricting the throwing plate 31, the electromagnet 37 is located in the inner position of the discharge cylinder 41. After the throwing plate 31 swings to the top, the electromagnet 37 can magnetically attract the debris, causing it to move outward inside the throwing plate 31, so that the debris is attracted out into the movement range of the drive assembly 42.

[0070] The guide channel 43 is opened on the inner wall of the discharge cylinder 41. The outer side of the guide channel 43 is covered with a filter plate 44 for filtering cutting fluid. In order to reduce the amount of debris mixed into the cutting fluid during the recycling process, the filter plate 44 can prevent debris from directly entering the guide channel 43 when it falls into the bottom of the discharge cylinder 41, so that it can be recycled stably.

[0071] The recycling box 45 is fixed inside the body 25, and the outside of the recycling box 45 is provided with a liquid injection hole.

[0072] In this application, in order to facilitate the movement of the cutting fluid, the discharge cylinder 41 is set in an inclined shape to facilitate the internal flow of the cutting fluid, thereby ensuring its stable recovery and internal flow. The cutting fluid is located at the bottom of the discharge cylinder 41, which separates it from the debris, ensuring the stability of the cutting fluid recovery and reducing the internal cutting fluid content.

[0073] In one possible implementation, the drive assembly 42 includes a drive motor and a spiral blade fixed to the output end of the drive motor. The drive motor is fixed inside the machine body, and an outlet capable of discharging debris is provided on one side of the machine body 1. The spiral blade extends into the discharge cylinder 41 and contacts the guide groove 43 and the inner wall of the discharge cylinder 41. The electromagnet 37 is energized to magnetically attract the debris inside the discharge cylinder 41.

[0074] In this application, in order to ensure that after the debris is attracted by the electromagnet 37, the movement of the spiral blades can make the debris move, so that the spiral blades can squeeze the debris and push it, thereby making the debris move stably.

[0075] This application also provides a method of using an integrated chip conveying guide device, including the following steps:

[0076] S1. Use a brush to clean the debris inside the bed 1 into the chip discharge groove 21. The debris flows inside the inclined chip discharge groove 21 and enters the inside of the conveyor belt 23.

[0077] S2. The output motor starts and drives the conveyor belt 23 to move through the pulley. The movement of the conveyor belt 23 causes the debris to change position. During the movement, the scraper 24 scrapes the debris off, and the extrusion block 26 extrudes the water absorption belt 27.

[0078] S3, the debris and cutting fluid enter the interior of the throwing plate 31 through the connecting pipe 32. The servo motor 33 moves to drive the throwing plate 31 to swing back and forth, sending the debris and cutting fluid from the discharge end 35 to the interior of the discharge cylinder 41.

[0079] S4. Electromagnet 37 operates, magnetically attracting debris and changing its position. Driven by drive assembly 42, the debris moves from the top of discharge cylinder 41, and the cutting fluid moves from guide channel 43 inside discharge cylinder 41 to be recycled into the recovery box 45. The debris is then discharged from machine body 25.

[0080] In one possible implementation, in S2, the extrusion block 26 extrudes the absorbent belt 27, which can use the cutting fluid absorbed inside the absorbent belt 27 to flush the chips located on the inner wall of the chip discharge groove 21.

[0081] The circuits and electronic components involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art and need not be elaborated upon. The scope of protection of this invention does not involve improvements to the internal structure and methods. It should be noted that the standard parts used in this invention can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail by the inventor here.

[0082] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0083] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0084] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated chip removal guide groove device based on a grinding worktable, comprising the machine tool bed (1), wherein, One side of the bed (1) is a chip removal position, characterized in that: a chip removal part is provided on one side of the chip removal position of the bed (1), the outer side of the chip removal part has a separation part, and a recycling part is provided on the side of the separation part away from the chips, the chip removal part includes: The body (25) is located at the bottom of the bed (1) to support the bed (1). The inner side of the body (25) forms a chip removal groove (21) for contacting the chip removal position of the bed (1). A conveyor belt (23) is disposed inside the machine body (25) and extends through the machine body (25) to the inside of the chip discharge trough (21). A motor assembly (22) for driving the conveyor belt (23) is disposed on the inner side of the conveyor belt (23). The motor assembly (22) is fixed inside the machine body (25). The absorbent belt (27) is fixedly attached to the inside of the conveyor belt (23) to absorb cutting fluid. The machine body (25) is provided with a squeezing block (26) for squeezing the absorbent belt (27). The separation section includes: A triangular plate (34) is fixed inside the throwing plate (31) to divide the discharge end (35) of the throwing plate (31) into two parts. An electromagnet (37) is provided on the outside of the outlet of the throwing plate (31), and the electromagnet (37) is fixed inside the machine body (25). The inside of the throwing plate (31) is provided with multiple stepped protrusions so that when the throwing plate (31) swings and generates recycling, some of the debris inside is left on the outside of the protrusions due to the obstruction of the protrusions. When the throwing plate (31) swings to the upper position, the debris is magnetically attracted by the electromagnet (37).

2. The integrated chip removal guide groove device based on a grinding worktable according to claim 1, characterized in that: The squeezing block (26) has a scraper (24) above it that can contact the outer surface of the absorbent belt (27). The scraper (24) is set in an inclined position to guide the debris. The squeezing block (26) squeezes the absorbent belt (27) during the movement of the conveyor belt (23).

3. The integrated chip removal guide groove device based on a grinding worktable according to claim 2, characterized in that: The motor assembly (22) includes an output motor that provides power and a pulley fitted on the output end of the output motor. The conveyor belt (23) is fitted on the outer wall of the pulley, wherein the conveyor belt (23) is located below the chip removal position of the bed (1).

4. The integrated chip removal guide groove device based on a grinding worktable according to claim 3, characterized in that: The separation section further includes: The connecting pipe (32) is flexibly installed inside the machine body (25), and the connecting pipe (32) is located at the bottom of the chip discharge groove (21). The outer side of the connecting pipe (32) is connected to the throwing plate (31), wherein the throwing plate (31) is provided with a discharge end (35) and a feed port (36). A servo motor (33) is fixed inside the body (25), and its output end is connected to the throwing plate (31) to drive the throwing plate (31) to swing.

5. The integrated chip removal guide groove device based on a grinding worktable according to claim 4, characterized in that: The feed inlet (36) is connected to the connecting pipe (32), which is flexibly designed to guide the debris inside the chip discharge groove (21) to the inside of the throwing plate (31).

6. The integrated chip removal guide groove device based on a grinding worktable according to claim 5, characterized in that: The outer side of the throwing plate (31) extends a cylindrical protrusion coaxial with the output end of the servo motor (33) and is movably inserted into the inside of the machine body (25).

7. The integrated chip removal guide groove device based on a grinding worktable according to claim 6, characterized in that: The recycling unit includes: The discharge cylinder (41) is installed at an angle inside the machine body (25). A drive assembly (42) is provided on the inner side of the discharge cylinder (41). The drive assembly (42) is fixed inside the machine body (25). A guide channel (43) is formed on the inner wall of the discharge cylinder (41), and the outer side of the guide channel (43) is covered with a filter plate (44) for filtering cutting fluid. The recycling box (45) is fixed inside the body (25), and the outside of the recycling box (45) is provided with a liquid injection hole.

8. The integrated chip removal guide groove device based on a grinding worktable according to claim 7, characterized in that: The drive assembly (42) includes a drive motor and a spiral blade fixed to the output end of the drive motor. The spiral blade extends into the discharge cylinder (41) and contacts the guide groove (43) and the inner wall of the discharge cylinder (41). The electromagnet (37) is energized to magnetically attract debris inside the discharge cylinder (41).

9. A method of using an integrated chip removal guide groove device based on a grinding worktable, for use in the integrated chip removal guide groove device as described in claim 8, characterized in that: Includes the following steps: S1. Use a brush to clean the debris inside the bed (1) into the chip discharge groove (21). The debris flows inside the inclined chip discharge groove (21) and enters the inside of the conveyor belt (23). S2. The output motor starts and drives the conveyor belt (23) to move through the pulley. The movement of the conveyor belt (23) causes the debris to change position. During the movement, the scraper (24) scrapes the debris off, and the extrusion block (26) extrudes the water absorption belt (27). S3, the debris and cutting fluid enter the interior of the throwing plate (31) through the connecting pipe (32). The servo motor (33) drives the throwing plate (31) to swing back and forth, sending the debris and cutting fluid from the discharge end (35) to the interior of the discharge cylinder (41). S4. The electromagnet (37) works, magnetically attracts the debris, causing the position of the debris to change. Under the drive of the drive assembly (42), the debris moves from the top of the discharge cylinder (41), and the cutting fluid moves from the guide channel (43) inside the discharge cylinder (41) to the inside of the recycling box (45), and the debris is discharged from the machine body (25).

10. The method of using an integrated chip removal guide groove device based on a grinding worktable according to claim 9, characterized in that: In S2, the extrusion block (26) extrudes the water-absorbing belt (27), and the cutting fluid absorbed inside the water-absorbing belt (27) can be used to flush the chips located on the inner wall of the chip discharge groove (21).

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