A cooling pipe for a bearing processing machine tool

Abstract

The present application discloses a cooling pipe for a bearing processing machine tool, which relates to the technical field of bearing processing, and includes a pipe fitting and a spray device; the pipe fitting includes an adjusting pipe, and the adjusting pipe is flexible; the spray device includes a spray pipe, and the spray pipe extends along an arc; the spray pipe has a cavity inside, one end of the adjusting pipe is for coolant to enter, and the other end of the adjusting pipe is connected to the cavity; the spray pipe is provided with a plurality of spray ports connected to the cavity, the spray ports are located on one side of the inner concave of the spray pipe, and the plurality of spray ports are evenly spaced along the arc trajectory of the spray pipe. The present application can maintain sufficient cooling effect on the workpiece and the tool after the coolant is sprayed, and the cooling effect is more uniform, and can effectively improve the utilization rate of the coolant.

Description

Technical Field

[0001] The present application relates to the technical field of bearing processing, and in particular to a cooling pipe of a bearing processing machine tool. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy.

[0003] In the existing process of machining bearings, it is usually necessary to complete the inner and outer ring machining of the bearings through a lathe. During the machining process, coolant needs to be sprayed on the workpiece and the tool through a cooling pipe, which can not only reduce the temperature of the machining area on the workpiece and improve the machining accuracy of the workpiece, but also extend the service life of the tool. It can also clean the debris formed in the machining area during the workpiece machining process to prevent the debris from contaminating the workpiece surface.

[0004] However, the cooling pipes used in existing bearing processing machines usually spray coolant directly from above the workpiece to the processing area and tool of the workpiece in a pouring manner. Although this can effectively cool the processing area and tool of the workpiece, it will cause a large amount of coolant waste. At the same time, the cooling effect of the coolant on the workpiece is relatively uneven, which may affect the processing quality of the workpiece. Summary of the invention

[0005] The present application provides a cooling tube for a bearing processing machine tool, which can maintain a sufficient cooling effect on a workpiece and a tool after the coolant is sprayed and the cooling effect is more uniform, and can effectively improve the utilization rate of the coolant.

[0006] The present application provides a cooling pipe for a bearing processing machine tool, which adopts the following technical solution: A cooling pipe for a bearing processing machine tool, comprising a pipe fitting and a spray device; The pipe member includes an adjusting pipe, and the adjusting pipe is flexible; The spray device comprises a spray pipe, and the spray pipe extends along an arc; The interior of the spray pipe has a cavity, one end of the regulating tube is for cooling liquid to enter, and the other end of the regulating tube is communicated with the cavity; the spray pipe is provided with a plurality of spray ports that are communicated with the cavity, the spray ports are located on one side of the concave portion of the spray pipe, and the plurality of spray ports are evenly spaced along the arc trajectory of the spray pipe.

[0007] By adopting the above technical solution, the staff can conveniently adjust the position of the regulating tube according to needs to adjust the spraying area of ​​the coolant. When spraying the coolant, the coolant can be divided into multiple streams and sprayed toward the workpiece and the tool, so that the coolant can maintain sufficient cooling effect on the workpiece and the tool after spraying and the cooling effect is more uniform, and at the same time, the utilization rate of the coolant can be effectively improved.

[0008] Optionally, the spray device includes a connecting piece, the connecting piece is arranged at one end of the regulating pipe, the spray pipe is slidably connected to the connecting piece, and the sliding direction of the spray pipe is the same as its own arc trajectory; The spray pipe is also provided with a plurality of liquid inlets communicating with the cavity, the liquid inlets are located on a side of the outer protrusion of the spray pipe, and the plurality of liquid inlets are evenly spaced and distributed along the arc trajectory of the spray pipe; During the sliding of the spray pipe, the regulating pipe can be communicated with the cavity through the multiple liquid inlets respectively.

[0009] By adopting the above technical solution, controlling the sliding of the spray pipe can change the spray area of ​​the coolant, which can further facilitate the staff to control the cooling effect of the coolant on the workpiece and the tool according to needs, thereby improving the quality of workpiece processing.

[0010] Optionally, the spray device further comprises a plurality of blocking blocks and a plurality of elastic members, and the plurality of blocking blocks, the plurality of elastic members, the plurality of liquid inlets and the plurality of spray ports correspond to each other one by one; The blocking block is movably connected to the spray pipe, and its movement direction is perpendicular to the arc trajectory of the spray pipe, and the blocking block can respectively block the liquid inlet and the spray outlet during the movement; the two ends of the elastic member are respectively connected to the blocking block and the spray pipe, and can drive the elastic member to move in a direction close to the liquid inlet and keep the liquid inlet blocked.

[0011] By adopting the above technical solution, it is possible to facilitate the sliding adjustment of the spray pipe while ensuring the effect of uniform multi-spraying of the coolant through the spray pipe.

[0012] Optionally, the connecting piece has a magnet at one end away from the regulating tube, and the block is magnetic. When the block is aligned with the magnet along its own moving direction, the magnet can drive the block to move toward the direction close to the spray port and keep the spray port blocked.

[0013] By adopting the above technical solution, it can be further convenient for the staff to control the sliding positioning of the spray pipe according to the needs, and at the same time, it can further improve the reliability of uniform multi-stream spraying of the coolant through the spray pipe.

[0014] Optionally, the spray device further comprises a flexible tube, two ends of which are respectively connected to the regulating tube and the connecting piece, and two ends of which are respectively communicated with the regulating tube and the liquid inlet.

[0015] By adopting the above technical solution, the flow rate of the coolant entering the cavity can be controlled by extruding the flexible tube, thereby controlling the speed at which the coolant is sprayed by the spray pipe, which can further facilitate the staff to appropriately cool the workpiece and tool according to needs.

[0016] Optionally, the connector has a connecting portion at one end close to the regulating tube, the connecting portion is fixedly connected to the regulating tube, a sealed cavity is provided inside the connecting portion, and the flexible tube is located in the sealed cavity; The connecting portion is provided with an air nozzle whose opening and closing can be controlled, and the air nozzle is communicated with the space between the flexible tube and the inner wall of the sealing cavity.

[0017] By adopting the above technical solution, the flexible tube can be squeezed by blowing air into the sealed cavity through an air nozzle, so that the staff can adjust the squeezing degree of the flexible tube according to needs. At the same time, the flexible tube can maintain a stable squeezing degree for a long time, so that the spraying effect of the spray pipe remains stable.

[0018] Optionally, the spray device further includes an airbag, which is disposed on the connecting portion and located in the sealed cavity, the airbag surrounds the flexible tube, and the air nozzle is in communication with the airbag.

[0019] By adopting the above technical solution, it is convenient for staff to adjust the degree of extrusion of the flexible tube according to needs, while reducing the probability of damage and rupture of the flexible tube during the adjustment of the degree of extrusion. At the same time, it can reduce the probability of damage and rupture of the flexible tube caused by the force applied to the extruded flexible tube when cooling the liquid mirror tube flexible tube.

[0020] Optionally, the pipe fitting further comprises a hose, one end of which is for the coolant to enter, and the other end of which is connected to and communicates with an end of the regulating pipe away from the spray pipe.

[0021] By adopting the above technical solution, the coolant can easily enter the regulating pipe, and the staff can also move the spray pipe to spray the coolant on the processed workpiece, so that the coolant can cool the workpiece and rinse the debris on the surface of the workpiece.

[0022] Optionally, a plurality of positioning members for the hose to be wound around are provided on the machine tool, and the hose is wound around the plurality of positioning members along a serpentine trajectory.

[0023] By adopting the above technical solution, the hose can be easily stored, and the probability that the coolant circulation speed is affected by entanglement or other situations during the storage process of the hose can be reduced.

[0024] Optionally, a positioning frame is further provided on the machine tool, and the positioning frame is located below the plurality of positioning members; the hose has a positioning portion at one end close to the regulating tube, and the positioning portion is detachably connected to the positioning frame.

[0025] By adopting the above technical solution, the structural stability of the cooling pipe can be improved when it is used to spray coolant on the workpiece and tool being processed to cool down. At the same time, it can be convenient for the staff to take out the cooling pipe as needed to perform subsequent cooling and debris cleaning on the processed workpiece.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. It can spray coolant in multiple directions to cool the workpiece and tool being processed, so that the workpiece and tool can maintain sufficient cooling effect after the coolant is sprayed and the cooling effect is more uniform, and the utilization rate of the coolant can be effectively improved; 2. It is convenient for the staff to adjust the spray range of the coolant according to the needs, so as to meet the cooling needs of different workpieces during processing and improve the processing effect of the workpieces; 3. It is convenient for the staff to adjust the spray rate of the coolant according to the needs, so as to further meet the cooling needs of different workpieces during the processing, improve the cooling effect of the coolant on the workpiece and the tool, and further improve the processing effect of the workpiece; 4. It is convenient for the staff to remove the cooling pipe according to the needs, spray the coolant on the processed workpiece, further cool the workpiece, and clean the debris on the surface of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a cooling pipe of a bearing processing machine tool according to an embodiment of the present application, which is used to spray coolant on a workpiece and a tool being processed; Figure 2 This is a schematic diagram of the local structure of a cooling pipe of a bearing processing machine tool in an embodiment of the present application when used to spray coolant on a workpiece and a tool being processed; Figure 3 This is a schematic diagram of the structure of a cooling pipe of a bearing processing machine tool according to an embodiment of the present application, which is used to further spray cooling liquid to cool and rinse the processed workpiece; Figure 4 This is a cross-sectional view of a cooling pipe of a bearing processing machine tool according to an embodiment of the present application when the cooling pipe is used to spray coolant on a workpiece and a tool being processed; Figure 5 It is a cross-sectional view of a spraying device when a cooling pipe of a bearing processing machine tool according to an embodiment of the present application is used to spray coolant on a workpiece and a tool being processed; Figure 6 It is a partial cross-sectional view of the hose in the embodiment of the present application when the degree of squeezing increases.

[0028] Explanation of the accompanying reference numerals: 1. machine tool; 11. positioning member; 12. positioning frame; 2. pipe fitting; 21. hose; 211. positioning portion; 22. adjusting pipe; 3. spray device; 31. connecting member; 311. connecting portion; 312. sealing cavity; 32. spray pipe; 321. cavity; 322. spray port; 323. liquid inlet; 33. flexible pipe; 34. block; 35. elastic member; 36. magnet; 37. air nozzle; 38. airbag. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is described in further detail.

[0030] An embodiment of the present application discloses a cooling pipe for a bearing processing machine tool, which is used for spraying coolant on the workpiece and the tool to cool down the workpiece during the workpiece processing process, thereby extending the service life of the tool and reducing fatigue deformation of the workpiece due to local heating during the processing, thereby improving the quality of the workpiece after processing; at the same time, after the workpiece is processed, the staff can control its movement according to needs to further cool the processed workpiece, facilitate the transportation of the workpiece to the next process, and can rinse the debris on the surface of the workpiece while cooling it.

[0031] Reference Figure 1 and Figure 2 The cooling pipe is installed on the machine tool 1 and is located above the structure for clamping the workpiece on the machine tool 1. The machine tool 1 is a rectangular parallelepiped structure as a whole, and the axis of rotation of the structure for clamping the workpiece is parallel to the length direction of the machine tool 1. In this embodiment, the machine tool 1 is preferably a lathe. Since the lathe is a common prior art for bearing processing, it will not be described in detail here, and it is only briefly shown in the drawings.

[0032] The cooling pipe includes a pipe fitting 2 and a spray device 3. The pipe fitting 2 is used to transport the cooling liquid; and the spray device 3 is used to spray the cooling liquid onto the target object.

[0033] Reference Figure 2 and Figure 3The pipe fitting 2 includes a hose 21 and an adjusting pipe 22. The hose 21 is used to transport the coolant smoothly, and can be convenient for the staff to remove the cooling pipe and control its movement to spray the coolant on the processed workpiece to further cool it down, and wash the debris on the surface of the processed workpiece; the adjusting pipe 22 is used to facilitate the staff to adjust the position of the spray device 3, so that the spray device 3 can stably spray the coolant on the workpiece and tool being processed to achieve the effect of cooling.

[0034] Reference Figure 1 and Figure 2 The hose 21 is a soft and elastic round tube section. One end of the hose 21 penetrates into the interior of the machine tool 1 and communicates with the space inside the machine tool 1 for containing coolant. A pump body for driving the coolant into the hose 21 is installed inside the machine tool 1. In this embodiment, the hose 21 is preferably made of rubber material. Since the above-mentioned designs of the machine tool 1 are all common prior arts, they are not described here in detail, and the internal structure of the machine tool 1 is omitted in the drawings.

[0035] The regulating tube 22 is a flexible circular tube section, one end of which is fixedly connected and communicated with the end of the hose 21 away from the machine body, and the other end of the regulating tube 22 is connected to the spray device 3 to transport the coolant into the spray device 3 to spray the coolant. In this embodiment, since the flexible tubular structure is a common prior art, it will not be described in detail here.

[0036] In order to facilitate the staff to take and place the cooling pipe according to needs, it is preferred that a plurality of positioning members 11 for the hose 21 to be wound are fixedly installed on the machine tool 1, and the plurality of positioning members 11 are all located above the structure for clamping the workpiece on the machine tool 1.

[0037] The positioning member 11 is a cylindrical structure, and its axis is parallel to the length direction of the machine tool 1; a plurality of positioning members 11 are evenly spaced on the machine tool 1 along the height direction of the machine tool 1, and are staggered along the width direction of the machine tool 1. In this embodiment, the plurality of positioning members 11 are preferably arranged in two rows on the machine tool 1 along the vertical direction.

[0038] The position at which the hose 21 penetrates into the machine tool 1 is higher than the uppermost positioning member 11, and the position of the lowermost positioning member 11 is higher than the structure on the machine tool 1 for clamping the workpiece; the hose 21 can be simultaneously wound around several positioning members 11 in a serpentine trajectory, and preferably, the end of the positioning member 11 away from the machine tool 1 has an anti-slip structure to prevent the hose 21 from falling off after winding.

[0039] When the hose 21 is simultaneously wound around several positioning members 11, the spray device 3 will be used to spray coolant on the workpieces and tools being processed to achieve a cooling effect; when the hose 21 leaves the several positioning members 11, the spray device 3 can be held by the staff to further spray coolant on the processed workpiece placed on the machine tool 1 to cool it down, and at the same time rinse off the debris on the surface of the workpiece.

[0040] Reference Figure 2 and Figure 4 In order to facilitate the staff to adjust the spraying area of ​​the spraying device 3 by adjusting the position state of the regulating tube 22 when the spraying device 3 is used to spray coolant on the workpiece and tool being processed to achieve the effect of cooling down, it is preferred that a positioning frame 12 is fixedly installed on the machine tool 1, and the end of the hose 21 close to the regulating tube 22 has a positioning portion 211.

[0041] The position of the positioning frame 12 on the machine tool 1 is lower than the lowest positioning member 11 and higher than the structure for clamping the workpiece on the machine tool 1, and the positioning portion 211 and the positioning frame 12 are detachably connected; after the positioning portion 211 is connected to the positioning frame 12, the positioning frame 12 will be able to limit the end of the hose 21 close to the adjusting tube 22 from moving relative to the machine tool 1, thereby improving the position stability of the end of the adjusting tube 22 close to the hose 21 relative to the machine tool 1. In this embodiment, the positioning frame 12 is preferably a rotating pipe clamp, and a slot matching the positioning portion 211 is provided on the inner side of the pipe clamp, and the positioning frame 12 can be locked after being rotated and closed so that the positioning portion 211 and the slot are kept in engagement to achieve positioning; since the above-mentioned positioning frame 12 and the positioning portion 211 are both common prior arts, they will not be described in detail here, and both are only briefly shown in the drawings, and the structure related to the locking function on the positioning frame 12 is omitted.

[0042] Reference Figure 4 and Figure 5 The spray device 3 includes a connector 31, a spray pipe 32 and a flexible pipe 33. The connector 31 is used to form a connection between the spray device 3 and the regulating pipe 22, and can facilitate the coolant to enter through the regulating pipe 22; the spray pipe 32 is used to spray the coolant in multiple streams and directions; the flexible pipe 33 is used to facilitate the staff to control the flow rate of the coolant entering the spray device 3 according to needs.

[0043] One end of the connector 31 is fixedly connected to one end of the regulating tube 22 away from the hose 21 , and the spray pipe 32 is connected to the regulating tube 22 through the connector 31 , so that the coolant can enter the spray pipe 32 through the regulating tube 22 .

[0044] The spray pipe 32 is in the form of a square pipe section extending along an arc trajectory. The spray pipe 32 is fitted with and slidably connected to the connector 31, and can slide relative to the connector 31 along its own arc trajectory. During the sliding process of the spray pipe 32, the expansion direction of its arc trajectory is toward the side away from the regulating pipe 22. In this embodiment, it is preferred that the spray pipe 32 has a limit during the sliding process relative to the connector 31. When the spray pipe 32 slides to the extreme position, the end of its arc trajectory close to the connector 31 will be located inside the connector 31.

[0045] The spray pipe 32 has a cavity 321 inside, and the cavity 321 as a whole is also a square strip structure extending along an arc trajectory, and the arc trajectory of the cavity 321 is the same as the arc trajectory of the spray pipe 32; a plurality of spray ports 322 communicating with the cavity 321 are opened on one side of the concave part of the spray pipe 32, and the plurality of spray ports 322 are evenly spaced along the arc trajectory of the spray pipe 32, and the direction in which the spray ports 322 spray coolant is parallel to the normal line of the position of the spray ports 322 at the arc trajectory of the spray pipe 32; the spray pipe 3 A plurality of liquid inlets 323 communicating with the cavity 321 are provided on one side of the outer convex portion. The plurality of liquid inlets 323 are evenly spaced along the arc trajectory of the spray pipe 32, and the opening direction of the liquid inlet 323 is parallel to the normal of the position of the liquid inlet 323 on the arc trajectory extending from the spray pipe 32; the number of the spray ports 322 on the spray pipe 32 is equal to the number of the liquid inlets 323, the plurality of spray ports 322 correspond to the plurality of liquid inlets 323 one by one, and the opening direction of the spray ports 322 is aligned with the opening direction of the corresponding liquid inlets 323.

[0046] A plurality of blockages 34 and a plurality of elastic members 35 are also installed inside the spray pipe 32 , and the plurality of blockages 34 and the plurality of elastic members 35 correspond one to one. The number of blockages 34 is equal to the number of spray ports 322 , and the plurality of blockages 34 and the plurality of spray ports 322 correspond one to one.

[0047] The block 34 is movably connected to the spray pipe 32, and the movement direction of the block 34 is parallel to the opening direction of the corresponding spray port 322; the block 34 is limited in its movement relative to the spray pipe 32; when the block 34 moves to the extreme position in the direction close to the corresponding spray port 322, one end of the block 34 in its own movement direction will be inserted into the corresponding spray port 322 to form a blockage; when the block 34 moves to the extreme position in the direction away from the corresponding spray port 322, the other end of the block 34 in its own movement direction will be inserted into the corresponding liquid inlet 323 to form a blockage.

[0048] The two ends of the elastic member 35 are respectively fixedly connected to the corresponding block 34 and the inner wall of the cavity 321 in the spray pipe 32, and have a tendency to drive the corresponding block 34 to move to the limit position in the direction away from the corresponding spray port 322 and maintain it, and the elastic member 35 is located on the side of the block 34 close to the corresponding spray port 322. In this embodiment, the elastic member 35 is preferably a compression spring.

[0049] A magnet 36 is fixedly installed on the side of the connecting piece 31 away from the adjusting tube 22, and the block 34 is magnetic and magnetically attracted to the magnet 36; when the spray pipe 32 slides relative to the connecting piece 31 until the block 34 is aligned with the magnet 36 along its own moving direction, the magnetic attraction force between the magnet 36 and the block 34 can drive the block 34 to overcome the force of the elastic piece 35 and move to the extreme position in the direction close to the corresponding spray port 322 and maintain it, and at this time the block 34 will maintain contact and resistance with the connecting piece 31, thereby improving the position stability of the spray pipe 32 after sliding adjustment.

[0050] By bending and adjusting the adjusting tube 22 and slidingly adjusting the spray pipe 32 relative to the connecting piece 31, the position of the spray pipe 32 relative to the structure for clamping the workpiece on the machine tool 1 can be changed, thereby changing the spraying area of ​​the coolant on the workpiece and tool being processed.

[0051] When spraying coolant, the coolant transported in through the regulating tube 22 will enter the cavity 321 through a liquid inlet 323, and then be sprayed out through multiple spray ports 322, so that the coolant can be sprayed in multiple streams and directions on the workpiece and tool being processed, so that the workpiece and tool being processed can be cooled and cooled more evenly by the coolant.

[0052] Reference Figure 4 and Figure 6 The flexible tube 33 is a round tube segment with elasticity and flexibility, which is installed between the regulating tube 22 and the connecting piece 31, and its two ends are respectively fixedly connected to the end of the regulating tube 22 away from the hose 21 and the connecting piece 31, and the two ends are respectively connected to the internal space of the regulating tube 22 and the internal space of the connecting piece 31. In this embodiment, the flexible tube 33 is preferably made of rubber material; the coolant transported by the regulating tube 22 enters the interior of the connecting piece 31 through the flexible tube 33, and then enters the cavity 321 of the inner wall of the spray pipe 32.

[0053] The connector 31 has a connecting portion 311 at one end close to the regulating tube 22 , and the connector 31 is fixedly connected to the regulating tube 22 via the connecting portion 311 . A sealed cavity 312 isolated from the outside is formed inside the connecting portion 311 of the connector 31 , and the flexible tube 33 is located in the sealed cavity 312 .

[0054] The connecting member 31 is fixedly installed with an airbag 38 in the sealed cavity 312. The airbag 38 is annular in structure and is installed around the flexible tube 33. The connecting member 31 is fixedly installed with an air nozzle 37 that can be opened and closed. One end of the air nozzle 37 close to the sealed cavity 312 is fixedly connected to the airbag 38 and communicates with the space inside the airbag 38. In this embodiment, the air nozzle 37 is preferably opened only when the staff needs to inflate or exhaust the airbag 38, and remains closed at other times. Since the air nozzle 37 that can be opened and closed is a common prior art, it will not be described in detail here, and it is only briefly shown in the drawings.

[0055] When the airbag 38 is in a fully deflated state, the flexible tube 33 is in a cylindrical structure as a whole, and the inner diameter of the flexible tube 33 is equal to the inner diameter of the regulating tube 22, so that the coolant can maintain the same flow rate into the cavity 321; when the airbag 38 is in an inflated state, the flexible tube 33 is in a cylindrical structure with the middle position retracted, and the inner diameter of the flexible tube 33 will be smaller than the inner diameter of the regulating tube 22, so that the coolant can enter the cavity 321 at a faster flow rate through the flexible tube 33, thereby speeding up the spraying rate of the coolant from the spray port 322, and then the spray device 3 can meet the spraying rate of the coolant required for cooling and cooling during the processing of different workpieces.

[0056] The implementation principle of a cooling pipe of a bearing processing machine tool in the embodiment of the present application is: Before processing the workpiece, the position state of the regulating tube 22 is adjusted according to the requirements (such as the size of the workpiece, the material of the workpiece, etc.), and the sliding position of the spray pipe 32 is adjusted so that the spray pipe 32 is positioned relative to the machine tool 1, and then the air bag 38 is inflated or deflated through the air nozzle 37 according to the requirements, and the state of the flexible tube 33 is changed to change the rate at which the spray pipe 32 sprays the coolant; Then, during the workpiece processing, the cooling pipe is used to spray the coolant on the workpiece and the tool during the processing, so that the workpiece and the tool during the processing are evenly cooled by the coolant; After the workpiece is processed, the processed workpiece is still located on the platform of the machine tool 1. After the contact positioning part 211 is positioned on the positioning frame 12 as required, the hose 21 is removed and the hand-held adjusting tube 22 is used to control the movement of the spray pipe 32 to spray coolant on the processed workpiece to further cool the processed workpiece and rinse the debris on the surface of the workpiece (the debris on the machine tool 1 can also be rinsed in this process).

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cooling pipe for a bearing processing machine tool, characterized in that: It comprises a pipe fitting (2) and a spray device (3); The pipe member (2) comprises an adjusting tube (22), and the adjusting tube (22) is flexible; The spray device (3) comprises a spray pipe (32), and the spray pipe (32) extends along an arc; The spray pipe (32) has a cavity (321) inside, one end of the regulating pipe (22) is for cooling liquid to enter, and the other end of the regulating pipe (22) is in communication with the cavity (321); the spray pipe (32) is provided with a plurality of spray ports (322) in communication with the cavity (321), the spray ports (322) are located on a concave side of the spray pipe (32), and the plurality of spray ports (322) are distributed at equal intervals along the arc trajectory of the spray pipe (32).

2. The cooling tube of a bearing processing machine tool according to claim 1, characterized in that: The spray device (3) comprises a connecting piece (31), the connecting piece (31) being arranged at one end of the regulating pipe (22), the spray pipe (32) being slidably connected to the connecting piece (31), and the sliding direction of the spray pipe (32) is the same as its own arc trajectory; The spray pipe (32) is also provided with a plurality of liquid inlets (323) in communication with the cavity (321); the liquid inlets (323) are located on a convex side of the spray pipe (32), and the plurality of liquid inlets (323) are distributed at equal intervals along the arc trajectory of the spray pipe (32); During the sliding of the spray pipe (32), the regulating pipe (22) can communicate with the cavity (321) through the multiple liquid inlets (323).

3. The cooling pipe of a bearing processing machine tool according to claim 2, characterized in that: The spray device (3) further comprises a plurality of blocking blocks (34) and a plurality of elastic members (35), and the plurality of blocking blocks (34), the plurality of elastic members (35), the plurality of liquid inlets (323) and the plurality of spray ports (322) are all in one-to-one correspondence; The blocking block (34) is movably connected to the spray pipe (32), and its movement direction is perpendicular to the arc trajectory of the spray pipe (32), and the blocking block (34) can respectively block the liquid inlet (323) and the spray port (322) during the movement; the two ends of the elastic member (35) are respectively connected to the blocking block (34) and the spray pipe (32), and can drive the elastic member (35) to move in a direction close to the liquid inlet (323) and keep the liquid inlet (323) blocked.

4. The cooling tube of a bearing processing machine tool according to claim 3, characterized in that: The end of the connecting member (31) away from the regulating tube (22) has a magnet (36), and the blocking block (34) has magnetism. When the blocking block (34) is aligned with the magnet (36) along its own moving direction, the magnet (36) can drive the blocking block (34) to move in a direction close to the spray port (322) and keep the spray port (322) blocked.

5. The cooling tube of a bearing processing machine tool according to claim 2, characterized in that: The spray device (3) further comprises a flexible tube (33), the two ends of the flexible tube (33) being respectively connected to the regulating tube (22) and the connecting piece (31), and the two ends of the flexible tube (33) being respectively connected to the regulating tube (22) and the liquid inlet (323).

6. The cooling pipe of a bearing processing machine tool according to claim 5, characterized in that: The connecting member (31) has a connecting portion (311) at one end close to the regulating tube (22), the connecting portion (311) being fixedly connected to the regulating tube (22), the connecting portion (311) having a sealed cavity (312) inside, and the flexible tube (33) being located in the sealed cavity (312); The connecting portion (311) is provided with an air nozzle (37) whose opening and closing can be controlled, and the air nozzle (37) is in communication with the space between the flexible tube (33) and the inner wall of the sealing cavity (312).

7. The cooling tube of a bearing processing machine tool according to claim 6, characterized in that: The spray device (3) further comprises an airbag (38), wherein the airbag (38) is arranged on the connecting portion (311) and is located in the sealed cavity (312), the airbag (38) surrounds the flexible tube (33), and the air nozzle (37) is in communication with the airbag (38).

8. The cooling pipe of a bearing processing machine tool according to claim 1, characterized in that: The pipe member (2) further comprises a hose (21), one end of which is for cooling liquid to enter, and the other end of which is connected to and communicates with an end of the regulating pipe (22) away from the spray pipe (32).

9. The cooling pipe of a bearing processing machine tool according to claim 8, characterized in that: A plurality of positioning members (11) for the hose (21) to be wound around are arranged on the machine tool (1), and the hose (21) is wound around the plurality of positioning members (11) along a serpentine trajectory.

10. The cooling pipe of a bearing processing machine tool according to claim 9, characterized in that: The machine tool (1) is also provided with a positioning frame (12), and the positioning frame (12) is located below the plurality of positioning members (11); one end of the hose (21) close to the regulating tube (22) has a positioning portion (211), and the positioning portion (211) is detachably connected to the positioning frame (12).

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