Ultra-precision grinding device and method for raceway of bearing outer ring

Abstract

The present invention discloses a super-precision grinding device for the raceway of a bearing outer ring, which includes a machine body constituting the support part of the grinding device. A driving structure is arranged inside the machine body. At the driving position of the driving structure, a clamping disc is provided for clamping the bearing outer ring and driving the bearing outer ring to rotate. A protective frame is arranged at the top of the driving structure. It is characterized in that a grinding part is arranged on one side of the clamping disc. The grinding part can enter the inner side of the bearing outer ring to form grinding of the raceway. The grinding part includes: a mounting frame, which is detachably mounted on the outside of the machine body. A positioning frame is arranged on its outside. The positioning frame is connected to the mounting frame, and a telescopic component that can be telescoped is arranged inside it. While grinding and processing the bearing outer ring, the present invention can absorb the particles remaining inside the raceway of the bearing outer ring, thereby avoiding their rolling during the grinding and processing, which may affect the grinding block and the bearing outer ring, and thus ensuring the precision of grinding.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing outer ring processing, and specifically to an ultra-precision grinding device and method for the raceway of a bearing outer ring. Background Art

[0002] Ultra-precision grinding is to grind the surface of parts. Among them, the raceway of the bearing outer ring is located inside the bearing outer ring, and its function is to facilitate more stable contact with the internal balls, ensuring that the bearing can obtain more stable use effects and good service life.

[0003] After the bearing outer ring is basically formed, it is necessary to perform ultra-precision grinding on its raceway, which can clean the residual particles and uneven surface positions processed in the previous process, so that the surface roughness meets the process requirements.

[0004] However, most of the existing ultra-precision grinding devices grind by extending the grinding structure into the bearing raceway and rotating during the process. However, the existing grinding devices cannot remove the residual particles inside the bearing raceway. That is, during use, the particles will rotate following the movement of the bearing outer ring, and when the particles inside the raceway enter the inner side of the grinding structure, they will enter between the grinding structure and the bearing raceway, affecting the grinding efficiency and causing scratches. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an ultra-precision grinding device and method for the raceway of a bearing outer ring, which solves the problem that the existing grinding devices cannot remove the residual particles inside the bearing raceway. That is, during use, the particles will rotate following the movement of the bearing outer ring, and when the particles inside the raceway enter the inner side of the grinding structure, they will enter between the grinding structure and the bearing raceway, affecting the grinding efficiency and causing scratches.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: An ultra-precision grinding device for the raceway of a bearing outer ring includes a machine body that constitutes the support part of the grinding device. A driving structure is arranged inside the machine body. At the driving position of the driving structure, a clamping disk is provided for clamping the bearing outer ring and driving the bearing outer ring to rotate. A protective frame is arranged on the top of the driving structure. A grinding part is arranged on one side of the clamping disk. The grinding part can enter the inner side of the bearing outer ring to form grinding on the raceway. The grinding part includes:

[0007] A mounting frame, which is detachably mounted on the outside of the machine body. A positioning frame is arranged on its outside. The positioning frame is connected to the mounting frame. A telescopic component that can be telescoped is arranged inside it. The telescopic component is adjustable, and after adjustment, the distance between the end of the telescopic component and the driving disk can be changed;

[0008] The adjusting component is detachably mounted at the end of the telescopic component, a grinding block is mounted on its outer side, a compression spring is arranged on the inner side of the grinding block to support it, and one end of the compression spring facing away from the grinding block is fixedly connected to the adjusting component.

[0009] The magnetic recovery component is arranged between the grinding blocks and is used for recovering the particles generated by grinding.

[0010] Furthermore, a rotatable turntable is arranged inside the mounting frame, the positioning frame can be connected to the turntable, and the positioning frame, the turntable and the mounting frame are all connected via screws, wherein the tail position of the positioning frame can be externally connected to a driving structure.

[0011] Furthermore, the telescopic component includes:

[0012] The telescopic rod is telescopically arranged inside the positioning frame, and its outer surface contacts the inner wall of the positioning frame. A slideway is arranged inside the positioning frame, and the slideway extends along the axis direction of the positioning frame, wherein the outer surface of the telescopic rod extends outward and extends from the slideway to the outside of the positioning frame;

[0013] The clamping plate can be rotatably mounted on one end of the telescopic rod extending to the outside of the positioning frame through a pin shaft, and a clamping plate is arranged at the end thereof. The clamping plate is connected to one of the clamping plates through a wire shaft and can limit the position of the other clamping plate;

[0014] The positioning protrusion is formed in an outward convex shape on the outer surface of the positioning frame. An elastic plate is arranged on the inner side of the clamping plate. The elastic plate is fixed to the outer surface of the clamping plate and can contact the positioning protrusion.

[0015] Furthermore, the positioning protrusions are symmetrically arranged, and after the clamping plate is limited by the clamping block, the positioning protrusions can squeeze the elastic plate, and the contact position between the elastic plate and the positioning protrusions is recessed, wherein the elastic plate is made of an elastic rubber column.

[0016] Furthermore, the magnetic recovery component includes:

[0017] The receiving groove is slidably mounted on the inner side of the adjusting component, and a magnetic plate is arranged on the inner side thereof, and an electromagnet is arranged on the inner side of the magnetic plate. The electromagnet is fixed on the inner side of the adjusting component, and can magnetically attract the magnetic plate after being energized, thereby fixing the magnetic plate, and can also be used to magnetically attract particles inside the channel during the grinding process through the receiving groove;

[0018] A guide plate is fixed to the inner side of the adjustment assembly, and one end of the guide plate contacts the opening of the receiving groove. A cleaning brush is arranged on one side of the guide plate, and the cleaning brush is fixed to the inner side of the adjustment assembly.

[0019] The nozzle is arranged on one side of the cleaning brush and is connected to the adjusting component. One end of the nozzle is provided with an air duct for supplying air, and the air duct extends to the outside of the adjusting component. An air supply pump is arranged at the end of the air duct extending to the outside of the adjusting component, and the air supply pump is detachably installed on the outer surface of the machine body.

[0020] Furthermore, the cleaning brush is made of soft hair and can contact the inner wall of the raceway of the outer bearing ring. Among them, the cleaning brush and the guide plate are symmetrically arranged, and the air supply pump forms a connection with the nozzle, and the nozzle of the nozzle faces the raceway of the outer bearing ring.

[0021] Furthermore, the adjusting component includes:

[0022] The moving frame is detachably installed at one end of the telescopic rod extending to the outside of the positioning frame. An extrusion block is arranged inside it, and the extrusion block can be telescopically inserted into the inside of the moving frame, and the grinding block is inserted into the inside of the extrusion block;

[0023] The connecting rod is movably arranged inside the moving frame. A connecting structure is arranged on its outer side to form a connection with the extrusion block. An adjusting head is arranged on one side of the connecting rod, and the adjusting head is inserted into the inside of the connecting rod and extends to the outside of the moving frame;

[0024] The magnetic ring is fixed to the inner side of the adjusting head and is used to magnetically attract the moving frame.

[0025] Furthermore, the connecting structure is a support rod and a mounting ring. Both ends of the support rod are connected by pin shafts, and the two ends of the support rod are respectively connected to the outer surface of the mounting ring and the outer surface of the extrusion block, and the mounting ring is threadedly connected to the connecting rod.

[0026] The present invention also provides a processing method for the ultra-precision grinding device of the raceway of the outer bearing ring, which is used for the ultra-precision grinding of the raceway of the outer bearing ring by the grinding device. The method includes the following steps:

[0027] Fix the outer bearing ring to be processed inside the clamping disc, and then use the telescopic component to adjust the position of the clamping disc;

[0028] Adjust the extending position of the grinding block through the adjusting component so that the grinding block can enter the inside of the outer bearing ring. Then, press the compression spring so that the grinding block can enter the raceway of the outer bearing ring. Under the supporting action of the compression spring, the grinding block can contact the inner wall of the raceway;

[0029] The driving component drives the clamping disc to rotate, so that the outer bearing ring rotates, and the grinding block grinds it, and the particles are recovered by the magnetic attraction recovery component, thereby completing the grinding of the outer bearing ring.

[0030] Furthermore, the driving structure can drive the clamping disc to rotate forward and backward. After the grinding is completed, the magnetic attraction recovery component needs to be powered off, and its inside needs to be cleaned to remove the particles and iron filings and residues inside it.

[0031] Beneficial effects

[0032] The present invention provides an ultra-precision grinding device and method for the raceway of a bearing outer ring. Compared with the prior art, it has the following beneficial effects:

[0033] 1. While grinding the bearing outer ring, the present invention absorbs the particles remaining inside the raceway of the bearing outer ring, thereby avoiding their rolling during the grinding process, which may affect the grinding block and the bearing outer ring, ensuring the grinding precision, and further ensuring the surface roughness after grinding.

[0034] 2. During the use of the present invention, the grinding part for grinding is inserted into the bearing outer ring, and the driving structure is used to drive the bearing outer ring to rotate. During the rotation, the raceway of the bearing outer ring will fit the grinding block, and at the same time, the raceway of the bearing outer ring is ground, thereby ensuring the stability during the grinding process.

[0035] 3. By setting a magnetic absorption recovery component capable of recovering the residual particles inside the raceway, the present invention can stably recover the particles during use, and ensure the stability of the particles after being recovered, avoiding their rolling inside the bearing, and thus avoiding the risk of particles entering between the grinding block and the raceway during use.

[0036] 4. By setting an adjustment component capable of adjusting the position of the grinding block during use, the different outer diameters of the grinding block can be adjusted during grinding, so that it can stably fit the bearing raceway. In cooperation with the support spring, a certain amount of contraction can occur during use, ensuring the stability during the grinding process. Description of the drawings

[0037] Figure 1 is a perspective view of the present invention;

[0038] Figure 2 is a side view of the present invention;

[0039] Figure 3 is a schematic structural view of the grinding part of the present invention;

[0040] Figure 4 is an exploded view of the telescopic component of the present invention;

[0041] Figure 5 is an exploded view of the splint structure of the present invention;

[0042] Figure 6 is a schematic view of the adjustment component and the magnetic absorption recovery component of the present invention;

[0043] Figure 7 is a cross-sectional view of the moving frame of the present invention;

[0044] Figure 8 Explosion diagram of the inner local structure of the motion frame of the present invention;

[0045] Figure 9 Explosion diagram of the installation structure of the grinding block of the present invention;

[0046] Figure 10 Explosion diagram of the electromagnet and magnetic plate structure of the present invention.

[0047] In the figure: 1 body, 2 protective frame, 3 driving structure, 21 mounting frame, 22 positioning frame, 23 grinding block, 24 telescopic assembly, 25 magnetic absorption recovery assembly, 26 compression spring, 27 adjustment assembly, 241 telescopic rod, 242 clamping plate, 243 positioning protrusion, 244 elastic plate, 245 clamping plate, 246 slideway, 251 guide plate, 252 cleaning brush, 253 electromagnet, 254 storage groove, 255 magnetic plate, 256 nozzle, 257 air duct, 258 air supply pump, 271 adjustment head, 272 motion frame, 273 magnetic ring, 274 connecting rod, 275 extrusion block. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] Please refer to Figures 1-10 , the present invention provides an ultra-precision grinding device for the raceway of the bearing outer ring, which is used for ultra-precision grinding of the raceway of the bearing outer ring. Among them, the device includes a body 1 that constitutes the support part of the grinding device. A driving structure 3 is arranged inside the body 1. A clamping disk for clamping the bearing outer ring and driving the bearing outer ring to rotate is arranged at the driving position of the driving structure 3. A protective frame 2 is arranged at the top of the driving structure 3. A grinding part is arranged on one side of the clamping disk. The grinding part can enter the inner side of the bearing outer ring to form grinding of the raceway. The grinding part includes:

[0050] A mounting frame 21, which is detachably mounted on the outside of the body 1. A positioning frame 22 is arranged on its outside. The positioning frame 22 is connected to the mounting frame 21. A telescopic assembly 24 that can be telescoped is arranged inside it. The telescopic assembly 24 is adjustable, and after adjustment, the distance between the end of the telescopic assembly 24 and the driving disk can be changed;

[0051] The adjusting component 27 is detachably installed at the end of the telescopic component 24. A grinding block 23 is installed on its outer side. A compression spring 26 for supporting the grinding block 23 is arranged inside the grinding block 23. One end of the compression spring 26 away from the grinding block 23 is fixedly connected to the adjusting component 27.

[0052] The magnetic absorption recovery component 25 is arranged between the grinding blocks 23 and is used for recovering the particles generated by grinding.

[0053] In the present invention, the machine body 1, the driving structure 3, and the clamping disc can be regarded as the main shaft driving part of the machine tool. The outer surface of the bearing outer ring is clamped by the clamping disc and driven to rotate. The central axis formed by the clamping disc and the axes of the positioning frame 22 and the mounting frame 21 are the same axis, ensuring the coaxiality during the processing.

[0054] In an embodiment, a rotatable turntable is arranged inside the mounting frame 21. The positioning frame 22 can be connected to the turntable, and the positioning frame 22 is connected to the turntable and the mounting frame 21 through screws. The tail position of the positioning frame 22 can be externally connected to the driving structure 3.

[0055] In this embodiment, the two installation methods of the positioning frame 22 can make the positioning frame 22 present different installation states. When the positioning frame 22 is connected to the mounting frame 21, since the mounting frame 21 is fixed on the machine body 1, the mounting frame 21 will not move. After the positioning frame 22 is connected to the mounting frame 21 through screws, it will naturally not move. After the positioning frame 22 is connected to the turntable, since the turntable itself can move relative to the mounting frame 21, the rotation of the positioning frame 22 will not be restricted and will move synchronously with the turntable.

[0056] In an embodiment, the telescopic component 24 includes:

[0057] The telescopic rod 241 is telescopically arranged inside the positioning frame 22. Its outer surface contacts the inner wall of the positioning frame 22. A slideway 246 is arranged inside the positioning frame 22 and extends along the axis direction of the positioning frame 22. Among them, the outer surface of the telescopic rod 241 extends outward and extends to the outside of the positioning frame 22 through the slideway 246;

[0058] The clamping plate 242 is rotatably installed at one end of the telescopic rod 241 extending to the outside of the positioning frame 22 through a pin shaft. A clamping plate 245 is arranged at its end. The clamping plate 245 is connected to one of the clamping plates 242 through a spool and can limit the other clamping plate 242;

[0059] The positioning protrusion 243 is formed in a convex shape on the outer surface of the positioning frame 22. An elastic plate 244 is arranged inside the clamping plate 242. The elastic plate 244 is fixed on the outer surface of the clamping plate 242 and can contact the positioning protrusion 243.

[0060] In this embodiment, the adjustment of the telescopic assembly 24 to the position can drive the adjustment of the position of the adjustment assembly 27. At the same time, the telescopic assembly 24 can be fixed after movement, so that it can stably enter the inner part of the raceway of the outer bearing ring. And the slideway 246 can position the telescopic rod 241, so that it cannot rotate relative to the positioning frame 22 and can only slide.

[0061] In one embodiment, the positioning protrusions 243 are symmetrically arranged. And after the clamping plate 242 is limited by the clamping block, the positioning protrusions 243 can squeeze the elastic plate 244, and the contact position between the elastic plate 244 and the positioning protrusions 243 is recessed. Among them, the elastic plate 244 is made of an elastic rubber column.

[0062] In this embodiment, by clamping the positioning protrusions 243 with the elastic plate 244, a stable friction can be formed between the elastic plate 244 and the positioning protrusions 243, so as to avoid the position change of the telescopic rod 241 caused by unstable clamping during use, affecting the stability of grinding, and further ensuring stable grinding accuracy.

[0063] In one embodiment, the magnetic absorption recovery assembly 25 includes:

[0064] The storage groove 254 is slidably installed inside the adjustment assembly 27. A magnetic plate 255 is arranged inside it, and an electromagnet 253 is arranged inside the magnetic plate 255. The electromagnet 253 is fixed inside the adjustment assembly 27. After being energized, it can magnetically absorb the magnetic plate 255 to form the fixation of the magnetic plate 255, and can also pass through the storage groove 254 to magnetically absorb the particles inside the raceway during grinding;

[0065] The guide plate 251 is fixed inside the adjustment assembly 27, and one end of the guide plate 251 is in contact with the opening position of the storage groove 254. A cleaning brush 252 is arranged on one side of the guide plate 251, and the cleaning brush 252 is fixed inside the adjustment assembly 27;

[0066] The nozzle 256 is arranged on one side of the cleaning brush 252 and is connected to the adjustment assembly 27. One end of the nozzle 256 is provided with an air duct 257 for supplying air. The air duct 257 extends to the outside of the adjustment assembly 27. One end of the air duct 257 extending to the outside of the adjustment assembly 27 is provided with an air supply pump 258, and the air supply pump 258 is detachably installed on the outer surface of the machine body 1.

[0067] In this embodiment, by applying a magnetic force to the inner side of the grinding block 23 by using the electromagnet 253, during the grinding process, the particles will move along with the movement of the outer bearing ring. After moving to the position of the cleaning brush 252, they will be intercepted by the cleaning brush 252 and enter the inside of the storage groove 254 for recovery under the guidance of the magnetic force.

[0068] Among them, a magnetic back plate is provided on the back of the air supply pump 258, and magnetic adsorption fixation is carried out by using magnetic force during installation. The nozzle 256 is fixed on the outer surface of the cleaning brush 252.

[0069] In one embodiment, the cleaning brush 252 is made of soft hair, and the cleaning brush 252 can contact the inner wall of the raceway of the outer bearing ring. Among them, the cleaning brush 252 and the guide plate 251 are symmetrically arranged, and the air supply pump 258 forms a connection with the nozzle 256, and the nozzle of the nozzle 256 faces the raceway of the outer bearing ring.

[0070] In this embodiment, the connection between the air supply pump 258 and the nozzle 256 can supply air to the nozzle 256. During air supply, the air flow will be ejected from the nozzle of the nozzle 256, and the nozzle guides the air flow to flow on the inner wall of the raceway of the outer bearing ring, so as to be able to clean the inside of the raceway of the outer bearing ring directly, and can ensure the efficiency during the cleaning process, and further ensure a stable recovery effect, and can clean the particles remaining in the gap during the blowing process.

[0071] In one embodiment, the adjusting assembly 27 includes:

[0072] A moving frame 272, which is detachably installed at one end of the telescopic rod 241 extending outside the positioning frame 22. An extrusion block 275 is arranged inside it. The extrusion block 275 is telescopically inserted into the moving frame 272, and the grinding block 23 is inserted into the extrusion block 275;

[0073] A connecting rod 274, which is movably arranged inside the moving frame 272. A connecting structure is arranged on its outer side to form a connection with the extrusion block 275. An adjusting head 271 is arranged on one side of the connecting rod 274. The adjusting head 271 is inserted into the connecting rod 274 and extends outside the moving frame 272;

[0074] A magnetic ring 273, which is fixed to the inner side of the adjusting head 271 and is used to magnetically adsorb the moving frame 272.

[0075] In this embodiment, by adjusting the position of the extrusion block 275, the position of the grinding block 23 can be changed. While the position of the grinding block 23 changes, it can grind the raceways of different-sized outer bearing rings. Among them, the guide plate 251, the cleaning brush 252, and the nozzle 256 are all fixed to the inner side of the moving frame 272. One end of the compression spring 26 is fixed to the inside of the extrusion block 275, and the other end is fixed to the inside of the grinding block 23.

[0076] In one embodiment, the connecting structure is a support rod and an installation ring. Both ends of the support rod are connected by pins, and both ends of the support rod are respectively connected to the outer surface of the installation ring and the outer surface of the extrusion block 275, and the installation ring is threadedly connected to the connecting rod 274.

[0077] In this embodiment, one end of the connecting rod 274 extends to the inner side of the moving frame 272, and the moving frame 272 is used to limit the connecting rod 274 so that it can only rotate but not move. After the adjusting head 271 is inserted into the interior of the connecting rod 274, it can drive the connecting rod 274 to rotate, and the support rod passes through the moving frame 272. The moving frame 272 is used to limit the support rod. When the connecting rod 274 rotates, the support rod is limited, and the connecting rod 274 is threadedly connected to the mounting ring. Therefore, when the connecting rod 274 rotates, the mounting ring can be moved, thereby pushing the extrusion block 275 to move.

[0078] The embodiment of the present invention further provides a method for processing a groove of an outer ring of a bearing using an ultra-precision grinding device, which is used for ultra-precision grinding of the groove of the outer ring of a bearing by a grinding device, and the method comprises the following steps:

[0079] The outer ring of the bearing to be processed is fixed to the inner side of the clamping plate, and then the position of the clamping plate is adjusted by using the telescopic assembly 24;

[0080] The card plate 245 is moved to open the card plate 245. After opening, the card plate 245 loses the restriction on the clamp plate 242, so that the clamp plate 242 can be opened. After the clamp plate 242 is opened, the position of the grinding block 23 can be moved by sliding the telescopic rod 241, so that the grinding block 23 can be inserted into the inner groove of the outer ring of the bearing to grind the outer ring groove of the bearing.

[0081] The extension position of the grinding block 23 is adjusted by adjusting the assembly 27 so that the grinding block 23 can enter the inner part of the outer ring of the bearing. Then, the grinding block 23 can enter the inner part of the groove of the outer ring of the bearing by pressing the compression spring 26. Under the support of the compression spring 26, the grinding block 23 can contact the inner wall of the groove.

[0082] Pull the adjusting head 271 outward to make it break away from the restriction of the moving frame 272, and rotate the adjusting head 271 so that it drives the connecting rod 274 to rotate. After the connecting rod 274 rotates, the mounting ring moves, thereby using the support rod to push the position of the extrusion block 275 to change, thereby completing the extension and retraction of the grinding block 23.

[0083] The driving assembly drives the clamping disk to rotate, so that the outer ring of the bearing rotates, and the grinding block 23 grinds it, and the particles are recovered by the magnetic recovery assembly 25, thereby completing the grinding of the outer ring of the bearing;

[0084] The particles and debris remaining inside the outer ring of the bearing during the grinding process will be blocked by the cleaning brush 252. At the same time, the air pump 258 supplies air, which is sprayed out by the nozzle 256 to clean the inner wall of the outer ring of the bearing. The electromagnet 253 is energized, and the particles and debris enter the recovery tank under the guidance of the electromagnet 253 to complete the recovery.

[0085] In one embodiment, the driving structure 3 can drive the clamping disc to rotate forward and backward. After grinding is completed, the magnetic absorption recovery component 25 needs to be powered off, and its interior needs to be cleaned to remove the particles and iron filings residues inside.

[0086] The circuits and electronic components involved in the present invention are all prior arts, which can be fully realized by those skilled in the art without further elaboration. The content protected by the present invention does not involve improvements to the internal structure and method. It should be noted that the standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art, and the inventor will not elaborate further here.

[0087] Meanwhile, the content not described in detail in this specification belongs to the well-known prior art to those skilled in the art.

[0088] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0089] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Ultra-precision grinding device for the raceway of the bearing outer ring, comprising a machine body that constitutes the support part of the grinding device, a driving structure is arranged inside the machine body, a clamping disk for clamping the bearing outer ring and driving the bearing outer ring to rotate is arranged at the driving position of the driving structure, and a protective frame is arranged at the top of the driving structure, characterized in that, A grinding part is provided on one side of the clamping disc, and the grinding part can enter the inner side of the bearing outer ring to grind the groove, and the grinding part includes: The mounting frame is detachably mounted on the outside of the machine body, a positioning frame is arranged on the outside of the mounting frame, the positioning frame is connected to the mounting frame, a retractable telescopic component is arranged inside the mounting frame, the telescopic component is adjustable, and after adjustment, the distance between the end of the telescopic component and the driving disk can be changed, and the telescopic component includes: The telescopic rod is telescopically arranged inside the positioning frame, and its outer surface contacts the inner wall of the positioning frame. A slideway is arranged inside the positioning frame, and the slideway extends along the axis direction of the positioning frame, wherein the outer surface of the telescopic rod extends outward and extends from the slideway to the outside of the positioning frame; The clamping plate can be rotatably mounted on one end of the telescopic rod extending to the outside of the positioning frame through a pin shaft, and a clamping plate is arranged at the end thereof. The clamping plate is connected to one of the clamping plates through a wire shaft and can limit the position of the other clamping plate; The positioning protrusion is formed in an outward convex shape on the outer surface of the positioning frame, and an elastic plate is arranged on the inner side of the clamping plate. The elastic plate is fixed to the outer surface of the clamping plate and can contact with the positioning protrusion; The adjusting assembly is detachably mounted at the end of the telescopic assembly, a grinding block is mounted on the outside of the adjusting assembly, a compression spring supporting the grinding block is arranged on the inside of the grinding block, and one end of the compression spring facing away from the grinding block is fixedly connected to the adjusting assembly. The adjusting assembly includes: The moving frame is detachably mounted on one end of the telescopic rod extending to the outside of the positioning frame, and an extrusion block is arranged inside the moving frame. The extrusion block can be telescopically inserted into the moving frame, and the grinding block is inserted into the extrusion block; A connecting rod is movably arranged inside the moving frame, a connecting structure is arranged on the outside of the connecting rod to form a connection with the extrusion block, an adjusting head is arranged on one side of the connecting rod, the adjusting head is inserted into the connecting rod and extends to the outside of the moving frame; The magnetic ring is fixed on the inner side of the adjustment head and is used for magnetically attracting the motion frame; The magnetic recovery component is arranged between the grinding blocks and is used to recover the particles generated by grinding. The magnetic recovery component includes: The receiving groove is slidably mounted on the inner side of the adjusting component, and a magnetic plate is arranged on the inner side thereof, and an electromagnet is arranged on the inner side of the magnetic plate. The electromagnet is fixed on the inner side of the adjusting component, and can magnetically attract the magnetic plate after being energized, thereby fixing the magnetic plate, and can also be used to magnetically attract particles inside the channel during the grinding process through the receiving groove; A guide plate is fixed to the inner side of the adjustment assembly, and one end of the guide plate contacts the opening of the receiving groove. A cleaning brush is arranged on one side of the guide plate, and the cleaning brush is fixed to the inner side of the adjustment assembly. The nozzle is arranged on one side of the cleaning brush and connected to the adjustment component. An air duct for air supply is arranged at one end of the nozzle. The air duct extends to the outside of the adjustment component. An air supply pump is arranged at one end of the air duct extending to the outside of the adjustment component. The air supply pump can be detachably installed on the outer surface of the body.

2. The ultra-precision grinding device for the raceway of the bearing outer ring according to claim 1, wherein: A rotatable turntable is arranged on the inner side of the mounting frame, the positioning frame can be connected to the turntable, and the positioning frame, the turntable and the mounting frame are all connected via screw rods.

3. The ultra-precision grinding device for the raceway of the bearing outer ring according to claim 2, characterized in that: The positioning protrusions are symmetrically arranged, and after the clamping plate is limited by the block, the positioning protrusions can squeeze the elastic plate, and the contact position between the elastic plate and the positioning protrusions is concave, and the elastic plate is made of an elastic rubber column.

4. The ultra-precision grinding device for the raceway of the bearing outer ring according to claim 3, characterized in that: The cleaning brush has soft bristles and can contact the inner wall of the groove of the outer ring of the bearing. The cleaning brush and the guide plate are symmetrically arranged. The air supply pump forms a connection with the nozzle, and the nozzle of the nozzle faces the groove of the outer ring of the bearing.

5. The ultra-precision grinding device for the raceway of the bearing outer ring according to claim 4, characterized in that: The connecting structure is a support rod and a mounting ring. Both ends of the support rod are connected by a pin shaft, and the two ends of the support rod are respectively connected to the outer surface of the mounting ring and the outer surface of the extrusion block, and the mounting ring is threadedly connected to the connecting rod.

6. A processing method of a super-precision grinding device for the raceway of the bearing outer ring according to any one of claims 1-5, which is used for the super-precision grinding of the raceway of the bearing outer ring by the grinding device, and is characterized in that, The method includes the following steps: Fix the outer ring of the bearing to be processed inside the clamping disc, and then use the telescopic component to adjust the position of the clamping disc; Adjust the extended position of the grinding block through the adjustment component so that the grinding block can enter the inner part of the outer ring of the bearing; The driving component drives the clamping disc to rotate, so that the outer ring of the bearing rotates, and the grinding block grinds it. The particles are recovered by the magnetic absorption recovery component, thus completing the grinding of the outer ring of the bearing.

7. The processing method of the ultra-precision grinding device for the raceway of the bearing outer ring according to claim 6, characterized in that: The driving structure can drive the clamping disc to rotate forward and backward. After the grinding is completed, the magnetic absorption recovery component needs to be powered off, and its interior needs to be cleaned to remove the particles and iron filings residues inside.

Images