A copper clad iron base bearing machining apparatus

Abstract

The application belongs to the technical field of bearing processing, in particular to a copper-coated iron-based bearing processing equipment, which comprises a machine body, and the machine body is a numerical control lathe; the machine body comprises a power box and a workbench; a three-jaw chuck is installed on the power box, and the three-jaw chuck is used for clamping the iron-based bearing; a sliding rail is installed on the workbench; a sliding plate is slidably connected to the sliding rail; a driving block is fixedly connected to the lower surface of the sliding plate, and a threaded hole is formed in the inner wall of the driving block; a lead screw is rotatably installed in the sliding rail, and the lead screw is fixedly connected to a first servo motor on the right side of the sliding rail; the lead screw is threadedly engaged with the threaded hole; and the application further comprises a cooling mechanism; the application is mainly used for solving the problem that when the bearing inner ring is polished by using a grinding wheel, the cooling liquid cannot follow the grinding wheel in the bearing inner ring, and the cooling liquid can only be sprayed to the bearing inner ring from the outside, thereby reducing the cooling effect on the bearing and easily causing the bearing to be sintered and cracked.

Description

Technical Field

[0001] This invention belongs to the field of bearing processing technology, specifically a copper-clad iron-based bearing processing equipment. Background Technology

[0002] Iron-based bearings are a type of sintered oil-impregnated metal bearing, primarily made from metal powder using powder metallurgy. These bearings are inherently porous, with the advantage of adjustable pore size and distribution during manufacturing. Utilizing this porous nature, they can be impregnated with 10%-40% (volume fraction) of lubricating oil for self-lubrication during operation.

[0003] Sintered metal oil-impregnated bearings can last for a long time with a single application of lubricating oil, making them suitable for applications where lubrication is inconvenient. Due to their low manufacturing cost and ease of use, sintered metal oil-impregnated bearings are widely used in automobiles, home appliances, transportation machinery, aircraft, tanks, agricultural machinery, food processing equipment, and instrumentation. Modern industrial sintered metal oil-impregnated bearings can be categorized by their base material into copper-based, iron-based, and copper-iron-based types.

[0004] After the iron-based bearing is pressed and sintered, the outer and inner surfaces of the bearing need to be polished. When polishing the inner ring of the bearing, coolant needs to be sprayed onto the polishing area to reduce the heat generated during polishing and prevent the bearing from sintering and cracking.

[0005] However, when grinding the inner ring of a bearing with a grinding wheel, the coolant cannot follow the grinding wheel into the inner ring of the bearing. Instead, coolant can only be sprayed into the inner ring of the bearing from the outside, which reduces the cooling effect on the bearing and can easily lead to sintering and cracking of the bearing.

[0006] Meanwhile, if sintering and cracks occur in the inner ring of the bearing, the oil in the bearing gaps cannot be preserved for a long time, thereby reducing the service life of the bearing.

[0007] In view of this, the present invention provides a copper-clad iron-based bearing processing equipment to solve the above-mentioned technical problems. Summary of the Invention

[0008] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a copper-clad iron-based bearing processing equipment.

[0009] The technical solution adopted by the present invention to solve its technical problem is as follows: The copper-clad iron-based bearing processing equipment of the present invention includes a machine body, and the machine body is a CNC lathe; the machine body includes a power box and a worktable;

[0010] The power box is equipped with a three-jaw chuck, which is used to clamp iron-based bearings.

[0011] The workbench is equipped with a slide rail; a sliding plate is slidably connected to the slide rail.

[0012] A drive block is fixedly connected to the lower surface of the slide plate, and a threaded hole is provided in the inner wall of the drive block;

[0013] A lead screw is rotatably mounted inside the slide rail, and the lead screw is fixedly connected to the first servo motor on the right side of the slide rail; the lead screw is threadedly engaged with a threaded hole.

[0014] It also includes a cooling mechanism; the cooling mechanism includes;

[0015] Mounting base, the mounting base is fixedly connected to the upper surface of the slide plate; the mounting base has a mounting cavity inside;

[0016] A drive shaft passes through the mounting base and is rotatably connected to the mounting base; the diameter of the drive shaft near the three-jaw chuck is smaller than the diameter near the mounting base; the drive shaft is a hollow shaft.

[0017] The first gear is fixedly connected to the outer surface of the drive shaft, and the first gear is located in the mounting cavity;

[0018] The second gear is rotatably connected to the lower part of the first gear via a rotating shaft, and the second gear meshes with the first gear; the second gear is also fixedly connected to the output shaft of the second servo motor, which is fixedly connected to the left end face of the mounting base.

[0019] A cylinder has an annular sleeve fixedly connected to one end face, and the outer surface of the annular sleeve is threaded; the drive shaft is located near the three-jaw chuck, and the inner surface of the drive shaft end is threaded, and the annular sleeve engages with the thread on the inner surface of the drive shaft end; a retaining ring is fixedly connected to the side of the cylinder that is in contact with the drive shaft, and the retaining ring has an arc-shaped surface.

[0020] Inclined holes: The inner wall of the cylinder is provided with evenly arranged inclined holes;

[0021] A grinding wheel is provided on the right side of the retaining ring on the surface of the drive shaft; a locking nut is rotatably connected to the right side of the grinding wheel on the outer surface of the drive shaft; the outer surface of the drive shaft is threaded, and the thread engages with the thread of the locking nut.

[0022] An annular layer, wherein an annular layer is fixedly connected to the inner surface of the annular sleeve, and the annular layer is made of rubber material;

[0023] The conduit is a metal tube; one side of the conduit extends through the annular layer into the cylinder, and the other side of the conduit extends out of the drive shaft;

[0024] A water pump, wherein the conduit extends out of one side of the drive shaft and is connected to the outlet pipe on the water pump; the inlet pipe of the water pump is connected to the coolant via a telescopic pipe;

[0025] A partition is slidably connected inside the cylinder; a bolt is fixed to the side of the partition away from the annular layer, and the other side of the bolt extends out of the cylinder; the bolt and the cylinder are threadedly engaged at the contact point;

[0026] The outer surface of the cylinder is fitted with an annular partition, and the inner wall of the annular partition has uniformly arranged through holes, and the inclination angle of the through holes is different from that of the inclined holes.

[0027] The outer surface of the cylinder is provided with uniformly arranged grooves; the inner wall of the annular partition is fixed with uniformly arranged spacers, and the spacers cooperate with the grooves.

[0028] The conduit has uniformly arranged annular tracks on the outer surface of the annular layer; the conduit has an annular cylinder on the outer surface of the annular layer, and the annular cylinder is located inside the annular layer; the inner surface of the annular cylinder is rotatably connected with uniformly arranged balls, and the balls extend into the tracks.

[0029] The annular cylinder has curved surfaces at both ends; the inner surface of the annular cylinder on the side closest to the cylindrical cylinder is in contact with the guide tube;

[0030] The drive shaft is equipped with evenly arranged ball bearings; the guide tube passes through the inner ring of the ball bearings.

[0031] The conduit is slidably connected to the inner ring of the ball bearing.

[0032] The conduit is threadedly connected to the outlet pipe on the water pump.

[0033] The beneficial effects of this invention are as follows:

[0034] 1. The copper-clad iron-based bearing processing equipment of the present invention, during the grinding process of the iron-based bearing by the grinding wheel, external coolant nozzles spray coolant into the interior of the iron-based bearing from the outside to cool it down. The coolant sprayed from the oblique holes can be sprayed onto the inner surface of the iron-based bearing and onto the grinding position of the iron-based bearing. In this process, the spraying of coolant from the external coolant nozzles and the spraying of coolant from the oblique holes onto the inner surface of the iron-based bearing can further improve the cooling effect on the iron-based bearing and prevent sintering and cracking of the iron-based bearing due to insufficient coolant spraying when grinding the inner ring.

[0035] 2. The copper-clad iron-based bearing processing equipment of the present invention features an annular partition on the outer surface of a cylinder, with through holes in the inner wall of the annular partition at angles different from those of the inclined holes. When the angle of the coolant spray needs to be adjusted, the operator takes out the annular partition with an inclination angle corresponding to the required spray angle and places it on the cylinder. After the annular partition is on the cylinder, the through holes and inclined holes correspond to each other, and the coolant sprayed from the inclined holes enters the through holes and is sprayed out through the through holes, thereby changing the angle of the sprayed coolant. When different diameter grinding wheels are replaced, the angle of the coolant spray can be adjusted to ensure that the coolant is always sprayed onto the grinding wheel and the iron-based bearing, thereby improving the cooling effect on the iron-based bearing and preventing sintering and cracking of the iron-based bearing.

[0036] 3. The copper-clad iron-based bearing processing equipment of the present invention has an annular cylinder on the outer surface of one side of the conduit extending to the annular layer, and the rotatably connected balls in the inner wall of the annular cylinder are all placed in the annular slide. When the drive shaft drives the annular layer to rotate, the annular layer will drive the annular cylinder to rotate. During the rotation of the annular cylinder, the balls will rotate in the annular slide on the conduit. In this process, the friction between the annular layer and the conduit can be reduced, and the torque on the conduit can be prevented from being too large. Since the two ends of the annular cylinder are arc surfaces, when the annular sleeve is rotated into the drive shaft, the arc-designed annular cylinder can be easily inserted into the annular layer. And since the side surface of the annular cylinder close to the cylinder is in contact with the conduit, it can prevent too much coolant from entering the drive shaft from the gap between the annular cylinder and the conduit. Attached Figure Description

[0037] The invention will now be further described with reference to the accompanying drawings.

[0038] Figure 1 This is a perspective view of the present invention;

[0039] Figure 2 This is the present invention. Figure 1 Enlarged view of a portion of point A in the middle;

[0040] Figure 3 This is a perspective view of the invention from another angle;

[0041] Figure 4 This is a top view of the present invention;

[0042] Figure 5 This is the present invention. Figure 4 Sectional view at point BB;

[0043] Figure 6 This is the present invention. Figure 5 Enlarged view of a section at point C;

[0044] Figure 7 This is the present invention. Figure 6Enlarged view of a section at point D;

[0045] In the diagram: 1. Body; 11. Power box; 12. Worktable; 13. Three-jaw chuck; 14. Slide rail; 15. Slide plate; 16. Drive block; 17. Lead screw; 18. First servo motor; 19. Iron-based bearing; 2. Mounting base; 21. Drive shaft; 22. First gear; 23. Second gear; 24. Second servo motor; 25. Conduit; 26. Water pump; 3. Cylinder; 31. Annular sleeve; 32. Retaining ring; 33. Inclined hole; 34. Grinding wheel; 35. Locking nut; 36. Annular layer; 37. Partition plate; 4. Annular partition; 41. Through hole; 42. Spacer bar; 43. Slide groove; 44. Annular slide rail; 45. Annular cylinder; 46. Ball bearing; 47. Ball bearing. Detailed Implementation

[0046] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0047] like Figures 1 to 7 As shown, this invention provides a copper-clad iron-based bearing processing equipment.

[0048] The machine includes a body 1, which is a CNC lathe; the body 1 includes a power box 11 and a worktable 12.

[0049] The power box 11 is equipped with a three-jaw chuck 13, which is used to clamp the iron-based bearing 19.

[0050] The workbench 12 is equipped with a slide rail 14; a slide plate 15 is slidably connected to the slide rail 14.

[0051] The lower surface of the slide plate 15 is fixedly connected to a drive block 16, and a threaded hole is provided in the inner wall of the drive block 16.

[0052] A lead screw 17 is rotatably mounted inside the slide rail 14, and the lead screw 17 is fixedly connected to the first servo motor 18 on the right side of the slide rail 14; the lead screw 17 is threadedly engaged with a threaded hole.

[0053] It also includes a cooling mechanism; the cooling mechanism includes;

[0054] Mounting base 2, which is fixedly connected to the upper surface of the slide plate 15; the mounting base 2 has a mounting cavity inside;

[0055] A drive shaft 21 passes through the mounting base 2 and is rotatably connected to the mounting base 2; the diameter of the drive shaft 21 on the side near the three-jaw chuck 13 is smaller than the diameter on the side near the mounting base 2; the drive shaft 21 is a hollow shaft.

[0056] The first gear 22 is fixedly connected to the outer surface of the drive shaft 21, and the first gear 22 is located in the mounting cavity;

[0057] The second gear 23 is rotatably connected below the first gear 22 via a rotating shaft, and the second gear 23 meshes with the first gear 22; the second gear 23 is also fixedly connected to the output shaft of the second servo motor 24, which is fixedly connected to the left end face of the mounting base 2.

[0058] A cylindrical cylinder 3 has an annular sleeve 31 fixedly connected to one end face, and the outer surface of the annular sleeve 31 is threaded; the drive shaft 21 is located near the three-jaw chuck 13, and the inner surface of the end of the drive shaft 21 is threaded, and the annular sleeve 31 engages with the thread on the inner surface of the end of the drive shaft 21; a retaining ring 32 is fixedly connected to the side of the cylindrical cylinder 3 that is in contact with the drive shaft 21, and the retaining ring 32 is provided with an arc-shaped surface;

[0059] Inclined holes 33 are provided in the inner wall of the cylinder 3, and evenly arranged inclined holes 33 are provided.

[0060] A grinding wheel 34 is provided on the right side of the retaining ring 32 on the surface of the drive shaft 21; a locking nut 35 is rotatably connected to the right side of the grinding wheel 34 on the outer surface of the drive shaft 21; the outer surface of the drive shaft 21 is threaded, and the thread engages with the thread of the locking nut 35.

[0061] Annular layer 36, the inner surface of the annular sleeve 31 is fixed with an annular layer 36, and the annular layer 36 is made of rubber material;

[0062] The conduit 25 is a metal tube; one side of the conduit 25 extends through the annular layer 36 into the cylinder 3, and the other side of the conduit 25 extends out of the drive shaft 21.

[0063] The water pump 26 has a conduit 25 extending out of one side of the drive shaft 21 and connected to the water outlet pipe on the water pump 26; the water inlet pipe of the water pump 26 is connected to the coolant through a telescopic pipe.

[0064] A partition plate 37 is slidably connected inside the cylinder 3; a bolt is fixed to the side of the partition plate 37 away from the annular layer 36, and the other side of the bolt extends out of the cylinder 3; the bolt and the cylinder 3 are threadedly engaged at the contact point;

[0065] The outer surface of the cylinder 3 is fitted with an annular partition 4, and the inner wall of the annular partition 4 is provided with uniformly arranged through holes 41, and the through holes 41 have an inclination angle different from that of the inclined holes 33.

[0066] The outer surface of the cylinder 3 is provided with uniformly arranged grooves 43; the inner wall of the annular partition 4 is fixed with uniformly arranged spacers 42, and the spacers 42 and the grooves 43 cooperate with each other.

[0067] The conduit 25 passes through the outer surface of the annular layer 36 and has uniformly arranged annular slides 44; the conduit 25 passes through the outer surface of the annular layer 36 and has an annular cylinder 45, which is located inside the annular layer 36; the inner surface of the annular cylinder 45 is rotatably connected with uniformly arranged balls 46, and the balls 46 partially extend into the slides.

[0068] The annular cylinder 45 has arc-shaped surfaces at both ends; the inner surface of the annular cylinder 45 on the side closest to the cylindrical cylinder 3 is in contact with the guide tube 25;

[0069] The drive shaft 21 is provided with evenly arranged ball bearings 47; the guide tube 25 passes through the inner ring of the ball bearings 47.

[0070] The conduit 25 is slidably connected to the inner ring of the ball bearing 47;

[0071] The conduit 25 is threadedly connected to the outlet pipe on the water pump 26.

[0072] Implementation process

[0073] When the pressed and sintered iron-based bearing 19 needs to be dressed, the operator first places the iron-based bearing 19 at the center of the three-jaw chuck 13, then clamps the iron-based bearing 19 using the three-jaw chuck 13. Next, the grinding wheel 34 is fitted onto the drive shaft 21, and the annular sleeve 31 on the cylinder 3 is screwed into the end of the drive shaft 21. The retaining ring 32 fixed on the cylinder 3 can block the grinding wheel 34. Then, the operator rotates the locking nut 35 towards the grinding wheel 34, fixing the grinding wheel 34 in place. The power box 11 then drives the three-jaw chuck 13 to rotate, which in turn controls the first servo motor 18 to rotate, thereby driving the lead screw 17 to rotate. Since the lead screw 17 is threadedly connected to the drive block 16, it rotates along the slide rail 1. 4. The slide plate 15 moves towards the position of the three-jaw chuck 13. When the slide plate 15 moves the cooling mechanism close to the iron-based bearing 19, the second servo motor 24 and the water pump 26 are started. During the rotation of the second servo motor 24, the second gear 23 will be driven to rotate. Since the second gear 23 meshes with the first gear 22, it can drive the first gear 22 to rotate. Since the first gear 22 is fixed to the drive shaft 21, it drives the drive shaft 21 to rotate, thereby driving the grinding wheel 34 to rotate. The rotation direction of the grinding wheel 34 is opposite to the rotation direction of the iron-based bearing 19. Since one side of the conduit 25 is connected to the water outlet pipe of the water pump 26, and the other side of the conduit 25 extends into the annular layer 36, the conduit 25 will not rotate with the drive shaft 21.

[0074] During the operation of the water pump 26, coolant can be drawn into the conduit 25. The coolant entering the conduit 25 will enter the cylinder 3. Due to the presence of the annular layer 36, the cylinder 3 can be sealed to prevent excessive coolant from entering the inner ring of the drive shaft 21. At the same time, due to the presence of the inclined hole 33, the coolant entering the cylinder 3 will be sprayed out through the inclined hole 33. Then, the operator continues to control the lead screw 17 to push the slide plate 15 to move, so that the grinding wheel 34 enters the inner ring of the iron-based bearing 19 to grind the iron-based bearing 19.

[0075] During the grinding process of the iron-based bearing 19 by the grinding wheel 34, the external coolant nozzle sprays coolant into the iron-based bearing 19 from the outside. The coolant sprayed from the inclined hole 33 can be sprayed onto the inner surface of the iron-based bearing 19 and onto the grinding position of the iron-based bearing 19. In this process, the spraying of coolant by the external coolant nozzle and the spraying of coolant from the inclined hole 33 onto the inner surface of the iron-based bearing 19 can further improve the cooling effect of the iron-based bearing 19 and prevent sintering and cracking of the iron-based bearing 19 due to insufficient coolant spraying when grinding the inner ring.

[0076] Specifically, since the cylinder 3 is equipped with a partition 37 with a fixed bolt, when the operator needs to adjust the amount of liquid sprayed from the inclined holes 33, a wrench can be used to turn the bolt extending to the cylinder 3. When the bolt is turned, the thread of the bolt in contact with the cylinder 3 engages, which can drive the partition 37 to move forward or backward in the cylinder 3. Thus, the evenly arranged inclined holes 33 can be separated by the partition 37, thereby controlling the amount of liquid sprayed from the inclined holes 33.

[0077] Meanwhile, since the outer surface of the cylinder 3 is fitted with an annular partition 4, and the inner wall of the annular partition 4 is provided with a through hole 41 with an inclination angle different from that of the inclined hole 33, when it is necessary to adjust the angle of the coolant spray, the operator takes out the annular partition 4 with the inclination angle of the through hole 41 corresponding to the required spray angle, and puts the annular partition 4 on the cylinder 3. After the annular partition 4 is put on the cylinder 3, the through hole 41 and the inclined hole 33 correspond to each other. Then the coolant sprayed from the inclined hole 33 will enter the through hole 41 and spray out through the through hole 41, thereby changing the angle of the sprayed coolant. When the grinding wheel 34 of different diameters is replaced, the angle of the coolant spray can be adjusted so that the coolant is always sprayed towards the grinding wheel 34 and the grinding area of ​​the iron-based bearing 19, thereby improving the cooling effect on the iron-based bearing 19 and preventing the iron-based bearing 19 from sintering and cracking.

[0078] When the annular partition 4 is fitted onto the cylinder 3, since the outer surface of the cylinder 3 is provided with uniformly arranged grooves 43 and the annular partition 4 is fixed with uniformly arranged spacers 42, during the fitting process, the spacers 42 can slide into the grooves 43. Then, under the guidance of the grooves 43, the annular partition 4 is fitted onto the cylinder 3. During this process, through the guiding and limiting effect of the grooves 43 and spacers 42, it is not necessary for the operator to align the oblique holes 33 and through holes 41. At the same time, it can also prevent the annular partition 4 from sliding on the cylinder 3.

[0079] More specifically,

[0080] Since the outer surface of the conduit 25 extending to the annular layer 36 is provided with an annular cylinder 45, and the rotatably connected ball bearings 46 in the inner wall of the annular cylinder 45 are all placed in the annular slide 44, when the drive shaft 21 drives the annular layer 36 to rotate, the annular layer 36 will drive the annular cylinder 45 to rotate. During the rotation of the annular cylinder 45, the ball bearings 46 will rotate in the annular slide 44 on the conduit 25. In this process, the friction between the annular layer 36 and the conduit 25 can be reduced, and the torque on the conduit 25 can be prevented from being too large. Since the two ends of the annular cylinder 45 are arc surfaces, when the annular sleeve 31 is rotated into the drive shaft 21, the arc-designed annular cylinder 45 can be easily inserted into the annular layer 36. And since the side surface of the annular cylinder 45 close to the cylinder 3 is in contact with the conduit 25, it can prevent too much coolant from entering the drive shaft 21 from the gap between the annular cylinder 45 and the conduit 25.

[0081] Meanwhile, since the drive shaft 21 is equipped with evenly arranged ball bearings 47, the presence of the ball bearings 47 can support the conduit 25. At the same time, during the rotation of the drive shaft 21, the outer ring of the ball bearings 47 will rotate, thus preventing the conduit 25 from rotating. Since the conduit 25 is threadedly connected to the outlet pipe on the water pump 26, and since the conduit 25 is slidably connected to the inner ring of the ball bearings 47, when it is necessary to disassemble the conduit 25, the staff can use a wrench to remove the conduit 25 from the outlet pipe on the water pump 26 and remove the water pump 26 from the slide plate 15. Then the conduit 25 can be pulled out from the drive shaft 21 for replacement.

[0082] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A copper-iron-based bearing processing equipment, comprising a machine body (1); the machine body (1) comprises a power box (11) and a workbench (12); A three-jaw chuck (13) is installed on the power box (11), and the three-jaw chuck (13) is used for clamping an iron-based bearing (19); A sliding rail (14) is installed on the workbench (12); a sliding plate (15) is slidably connected to the sliding rail (14); A driving block (16) is fixedly connected to the lower surface of the sliding plate (15), and a threaded hole is formed in the inner wall of the driving block (16); A lead screw (17) is rotatably installed in the sliding rail (14), and the lead screw (17) is fixedly connected with a first servo motor (18) on the right side of the sliding rail (14); the lead screw (17) is in threaded engagement with the threaded hole; characterized in that It also comprises a cooling mechanism; the cooling mechanism comprises; A mounting seat (2) is fixedly connected to the upper surface of the sliding plate (15); a mounting cavity is formed in the mounting seat (2); A drive shaft (21) penetrates through the mounting seat (2) and is rotatably connected with the mounting seat (2); the diameter of the drive shaft (21) near the three-jaw chuck (13) is smaller than the diameter of the drive shaft (21) near the mounting seat (2); the drive shaft (21) is a hollow shaft; A first gear (22) is fixedly connected to the outer surface of the drive shaft (21), and the first gear (22) is located in the mounting cavity; A second gear (23) is rotatably connected below the first gear (22) through a rotating shaft, and the second gear (23) is in engagement with the first gear (22); the second gear (23) is fixedly connected with the output shaft of a second servo motor (24) fixedly connected to the left end surface of the mounting seat (2); A cylindrical barrel (3) has an annular sleeve (31) fixedly connected to one side end surface, and threads are formed on the outer surface of the annular sleeve (31); threads are formed on the inner surface of the end portion of the drive shaft (21) near the three-jaw chuck (13), and the annular sleeve (31) is in threaded engagement with the threads formed on the inner surface of the end portion of the drive shaft (21); a retaining ring (32) is fixedly connected to the side of the cylindrical barrel (3) abutting the drive shaft (21), and the retaining ring (32) is provided with an arc surface; Uniformly arranged inclined holes (33) are formed in the inner wall of the cylindrical barrel (3); A grinding wheel (34) is arranged on the surface of the drive shaft (21) on the right side of the retaining ring (32); a locking nut (35) is rotatably connected to the outer surface of the drive shaft (21) on the right side of the grinding wheel (34); threads are formed on the outer surface of the drive shaft (21), and the threads are in threaded engagement with the locking nut (35); An annular layer (36) is fixedly connected to the inner surface of the annular sleeve (31), and the annular layer (36) is made of rubber material; A conduit (25) is a metal pipe; one side of the conduit (25) extends into the cylindrical barrel (3) through the annular layer (36), and the other side of the conduit (25) extends out of the drive shaft (21). A water pump (26) is connected with the water outlet pipe on the water pump (26) through the extension pipe.

2. A copper clad iron base bearing machining apparatus as defined in claim 1, wherein: The baffle (37) is slidably connected in the cylinder (3), and a bolt is fixed to the side of the baffle (37) away from the annular layer (36), and the other side of the bolt extends out of the cylinder (3).

3. A copper clad iron base bearing machining apparatus as defined in claim 1, wherein: The outer surface of the cylinder (3) is sleeved with an annular separation layer (4), and a plurality of through holes (41) are uniformly arranged in the inner wall of the annular separation layer (4), and the inclination angle of the through holes (41) is different from that of the inclined holes (33).

4. A copper clad iron base bearing machining apparatus as defined in claim 3 wherein: The outer surface of the cylinder (3) is provided with a plurality of uniformly arranged sliding grooves (43); the inner wall of the annular separation layer (4) is fixedly connected with a plurality of uniformly arranged separation strips (42), and the separation strips (42) and the sliding grooves (43) are matched with each other.

5. A copper clad iron base bearing machining apparatus as defined in claim 1, wherein: The outer surface of the annular layer (36) through which the conduit (25) passes is provided with a plurality of uniformly arranged annular sliding channels (44); the outer surface of the annular layer (36) through which the conduit (25) passes is provided with an annular cylinder (45), and the annular cylinder (45) is located in the annular layer (36); the inner surface of the annular cylinder (45) is rotatably connected with a plurality of uniformly arranged balls (46), and the balls (46) partially extend into the sliding channels.

6. A copper clad iron base bearing machining apparatus as defined in claim 5, wherein: The two ends of the annular cylinder (45) are arc surfaces; the inner surface of the side of the annular cylinder (45) close to the cylinder (3) is attached to the conduit (25).

7. A copper clad iron base bearing machining apparatus as defined in claim 1 wherein: The driving shaft (21) is provided with a plurality of uniformly arranged ball bearings (47); the conduit (25) passes through the inner ring of the ball bearing (47).

8. A copper clad iron base bearing machining apparatus according to claim 7, wherein: The conduit (25) is slidably connected with the inner ring of the ball bearing (47).

9. A copper clad iron base bearing machining apparatus as defined in claim 1 wherein: The conduit (25) is threadedly connected with the water outlet pipe on the water pump (26).

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