Bearing inner ring grinding finishing equipment and method

Abstract

The application relates to the field of bearing inner ring machining, in particular to a bearing inner ring grinding and finishing equipment and method, which comprises a base plate, a rotating ring is rotatably arranged in the middle of the base plate, a plurality of groups of swing plates with clamping assemblies are arranged on the outer side of the rotating ring, a plurality of circular grooves are arranged on the base plate, grinding assemblies matched with the clamping assemblies are further arranged, and liquid supply assemblies and detection assemblies are arranged in the circular grooves at intervals. The application can realize one-time clamping of the bearing inner ring, complete the whole-process operation of pre-grinding detection, synchronous grinding of the inner and outer sides of the inner ring and post-grinding precision detection, realize sufficient grinding cooling and grinding dust discharge through a closed liquid supply and discharge structure, isolate external interference through a closed detection cavity, effectively reduce clamping errors, and improve the machining efficiency and machining precision of the bearing inner ring.

Description

Technical Field

[0001] This invention relates to the field of bearing inner ring machining, and particularly to a bearing inner ring grinding and finishing equipment and method. Background Technology

[0002] As the core load-bearing component of the bearing, the inner ring of the bearing requires precision machining of the inner hole and grinding of the raceway on the outer wall to meet the requirements of assembly and operation accuracy.

[0003] In current production, two independent sets of equipment are usually used to complete the clamping and grinding of the inner hole and raceway. After grinding, the machining accuracy needs to be manually inspected. Moreover, only a single inner ring can be machined and inspected at a time, which limits production efficiency.

[0004] In the prior art, patent CN114248159A discloses a synchronous grinding fixture for the inner and outer diameters of a bearing inner ring. This fixture includes a transmission adjustment device and a grinding device. Through a transmission structure where a central gear plate meshes with a side gear plate, it drives the second friction plate for inner hole grinding and the first friction plate for outer diameter raceway grinding to operate synchronously, achieving synchronous grinding of the inner hole and outer diameter of the bearing inner ring and improving processing coordination. However, although this technology solves some of the original problems, there are still aspects that need further optimization to better meet actual grinding requirements. The existing technology does not have a coolant splash prevention structure. In actual grinding operations, a large amount of coolant is required for cooling and lubrication. The coolant will be sprayed out in large quantities along with the high-speed rotating grinding mechanism and adhere to the surfaces of various transmission and adjustment structures of the device, making cleaning extremely difficult.

[0005] Meanwhile, the coolant will carry metal powder generated during grinding and splash everywhere, especially when grinding the outer raceway, the splash range is wider, which can easily cause the transmission structure to jam and the equipment to become contaminated.

[0006] Furthermore, this technology lacks a machining accuracy testing mechanism, and manual inspection of the grinding accuracy of the inner ring is still required after grinding. When facing mass production, manual inspection can only be carried out by sampling, which is not only inefficient but also prone to missing defective products, making it difficult to ensure product processing consistency.

[0007] Therefore, based on the above analysis, there is still room for improvement in existing bearing inner ring grinding equipment. Summary of the Invention

[0008] To address the aforementioned problems, the present invention provides a bearing inner ring grinding and finishing equipment, comprising a base plate, a rotating ring rotatably mounted in the center of the base plate, several swing plates evenly distributed along the circumference of the rotating ring mounted on the outer side of the rotating ring, and a clamping assembly for clamping the inner ring mounted on the side of the swing plates away from the rotating ring.

[0009] The substrate has several circular grooves evenly distributed around the axis of rotation. The substrate is also equipped with several grinding components that match the distribution range and number of the swing plate. The grinding components correspond one-to-one with the clamping components. The grinding components are used to grind the inner and outer sides of the inner ring.

[0010] Several circular grooves are equipped with a liquid supply component and a detection component, which are used to supply and recover coolant to the inner ring in the clamping component during grinding, and to perform precision detection on the inner and outer sides of the inner ring before and after grinding.

[0011] Preferably, the clamping assembly includes a clamping seat ring installed at the end of the swing plate, a clamping ring installed inside the clamping seat ring, and a three-jaw clamping member installed inside the clamping ring for clamping the outer side of the inner ring.

[0012] Preferably, the grinding assembly includes several sliding shafts that slide through the substrate. An extension plate is mounted on the top of the sliding shaft. An upper sealing plate is rotatably disposed at the end of the extension plate and is distributed vertically with the corresponding clamping ring. An abutment ring is installed on the inner side of the corresponding clamping ring. The bottom of the upper sealing plate is in contact with the abutment ring.

[0013] The clamping seat ring has a structural groove, and the clamping ring and the clamping seat ring are in sliding fit. A portion of the outer side of the clamping ring extends into the structural groove and a return spring is installed between it and the inner wall.

[0014] Preferably, the top of the upper sealing plate is provided with a sliding groove, and a sliding plate is slidably installed in the sliding groove. Two outer shafts and an inner shaft are respectively provided on the sliding plate and extend into the corresponding clamping rings. An outer grinding wheel and an inner grinding wheel are respectively sleeved on the outer side of the outer shaft and the inner shaft.

[0015] Preferably, an air supply pipe is installed through the top of the upper sealing plate.

[0016] Preferably, the liquid supply assembly includes a lower sealing plate installed in a circular groove, and a liquid supply pipe is installed through the lower sealing plate, with one end of the liquid supply pipe located in the circular groove.

[0017] The bottom of the clamping ring passes through the circular groove and contacts the top of the lower sealing plate.

[0018] Preferably, a drainage cavity is provided inside the lower sealing plate, and the two ends of the drainage cavity are respectively connected to the upper and lower outer walls of the lower sealing plate.

[0019] A vertical shaft is slidably installed inside the lower sealing plate and located in the drainage chamber. The top of the vertical shaft passes through the drainage chamber and enters the circular groove. Several throttling grooves are opened on the top of the vertical shaft along its axis, and a quick discharge groove is also opened on the outside of the vertical shaft, which is connected to the bottom of the throttling groove.

[0020] A drain pipe that communicates with the internal drain chamber is installed through the bottom of the lower sealing plate.

[0021] Preferably, the detection component includes a sealing plate installed in the corresponding circular groove, and a number of support shafts corresponding one-to-one with the sealing plate are slidably passed through the substrate, with a support plate installed on the top of the support shaft.

[0022] Preferably, a cover plate corresponding to the adjacent circular groove is installed on one side of the support plate.

[0023] The present invention also provides a method for grinding and finishing the inner ring of a bearing, the steps of which are as follows: S1, Inner ring installation: The inner ring of the bearing to be processed is clamped into the clamping assembly to complete the positioning and clamping fixation.

[0024] S2, Pre-grinding inspection: The rotating ring drives the swing plate to rotate, causing the clamping assembly to move to the station corresponding to the inspection assembly, completing the inspection of the inner and outer diameter dimensions and inner and outer morphology of the inner ring before grinding.

[0025] S3, Inner Ring Grinding: The oscillating plate rotates to switch the clamping assembly to the station corresponding to the liquid supply assembly and the grinding assembly, and simultaneously grinds the inner hole and the outer raceway of the inner ring.

[0026] During the grinding process, the fluid supply unit continuously supplies and recovers coolant to the grinding area.

[0027] S4, Post-grinding inspection: The oscillating plate rotates to move the clamping assembly to the station corresponding to the inspection assembly, completing the precision inspection of the inner ring after grinding.

[0028] S5, Inner ring removal: After the inspection is completed, the swing plate drives the clamping assembly to rotate to the loading and unloading station for disassembly and replacement.

[0029] In summary, this application includes at least one of the following beneficial technical effects: I. This invention uses a rotating ring to drive the swing plate and clamping assembly to rotate and switch work positions. With the help of the circular groove on the substrate and the spaced liquid supply and detection components, the inner ring can complete the entire process of pre-grinding inspection, synchronous grinding and post-grinding inspection in a single clamping, reducing dimensional errors caused by multiple clamping and improving processing efficiency.

[0030] Second, this invention forms a closed grinding space by combining the upper sealing plate, the lower sealing plate and the circular groove. With the help of the liquid supply pipe, coolant is supplied to avoid disorderly splashing of coolant, realize immersion grinding, fully cool and lubricate the grinding wheel and the workpiece, and improve grinding efficiency and machining accuracy. Through the combination of the throttling groove and the fast discharge groove on the vertical shaft, the grinding chips can be discharged at a uniform speed, and the residual coolant can be quickly drained to avoid blockage of the discharge channel.

[0031] Third, this invention enables online detection of the inner ring before and after grinding through a sealed detection cavity formed by a cover plate and a sealing plate, eliminating the need to remove the workpiece for offline detection and further improving processing efficiency. The sealed structure isolates the external environment from interference with the detection, and combined with air blowing to remove residual coolant, it ensures detection accuracy. The circular groove can limit the clamping ring, preventing the swing plate from shaking during grinding, thus improving the stability of equipment operation. Furthermore, the core structure of the detection component is interchangeable with that of the grinding and fluid supply components, reducing equipment manufacturing costs. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] Figure 1 This is a schematic diagram of the structure of the main body of the present invention.

[0034] Figure 2 This is a distribution diagram of the circular grooves of the present invention.

[0035] Figure 3 This is a bottom view of the main body of the invention.

[0036] Figure 4 This is a schematic diagram of the clamping component of the present invention.

[0037] Figure 5 This is a schematic diagram showing the distribution of the grinding assembly, the fluid supply assembly, and the clamping assembly of the present invention.

[0038] Figure 6 This is the present invention. Figure 5 Enlarged view of part of the structure at point A in the middle.

[0039] Figure 7 This is a partial structural schematic diagram of the grinding assembly of the present invention.

[0040] Figure 8 This is a diagram showing the fit between the outer shaft, inner shaft, and inner ring of this invention.

[0041] Figure 9 This is a schematic diagram of the liquid supply component of the present invention.

[0042] Figure 10 This is a schematic diagram of the detection component of the present invention.

[0043] Figure 11 This is a schematic diagram of the structure of the linkage ring plate and linkage plate of the present invention.

[0044] In the diagram, 1. Base plate; 10. Drive motor; 11. Rotating ring; 12. Swing plate; 13. Inner ring; 14. Circular groove; 2. Clamping assembly; 20. Clamping seat ring; 21. Clamping ring; 22. Three-jaw clamping component; 3. Grinding assembly; 30. Sliding shaft; 31. Extension plate; 32. Upper sealing plate; 33. Abutment ring; 34. Construction groove; 35. Return spring; 36. Sliding groove; 37. Sliding plate; 38. 39. Outer shaft; 310. Inner shaft; 311. Outer grinding wheel; 312. Inner grinding wheel; 313. Air supply pipe; 4. Liquid supply assembly; 40. Lower sealing plate; 41. Liquid supply pipe; 42. Drainage chamber; 43. Vertical shaft; 44. Throttling groove; 45. Quick drain groove; 46. Drainage pipe; 5. Detection assembly; 50. Sealing plate; 51. Support shaft; 52. Support plate; 53. Cover plate; 6. Linkage ring plate; 60. Linkage plate. Detailed Implementation

[0045] The following combination Figures 1 to 11 The embodiments of the present invention will be described in detail below.

[0046] This application discloses a bearing inner ring grinding and finishing equipment and method, which is used in the grinding and finishing process of bearing inner rings. It can realize the entire process of inner ring processing and inspection in one clamping, thereby improving processing efficiency and processing accuracy.

[0047] Example 1: Reference Figures 1 to 4 As shown, a bearing inner ring grinding and finishing equipment includes a base plate 1. A drive motor 10 is installed in the middle of the base plate 1. A rotating ring 11 is fixedly sleeved on the main shaft of the drive motor 10. Four swing plates 12 are evenly distributed along the circumference of the rotating ring 11 and are distributed at a 90-degree angle. A clamping assembly 2 for clamping the inner ring 13 (short for bearing inner ring) is installed on the side of the swing plate 12 away from the rotating ring 11.

[0048] The substrate 1 has eight circular grooves 14 evenly distributed around the axis of the rotating ring 11, that is, the circular grooves 14 are at a 45-degree angle to each other. The substrate 1 is also equipped with several grinding components 3 that match the distribution range and number of the swing plate 12. The grinding components 3 correspond one-to-one with the clamping components 2. The grinding components 3 are used to grind the inner and outer sides of the inner ring 13. The several circular grooves 14 are spaced apart and equipped with a liquid supply component 4 and a detection component 5, which are used to supply and recover coolant to the inner ring 13 in the clamping component 2 during grinding, and to perform accuracy detection on the inner and outer sides of the inner ring 13 before and after grinding.

[0049] The operator can sequentially place multiple inner rings 13 into the corresponding clamping components 2 to complete the clamping. Then, the drive motor 10 is started to drive each swing plate 12 to rotate synchronously, so that the four clamping components 2 enter the corresponding four detection components 5 to complete the detection of the inner and outer diameter dimensions and inner and outer morphology before grinding, so as to facilitate the subsequent grinding component 3 to accurately perform grinding. After the detection is completed, the drive motor 10 drives the swing plate 12 to rotate forty-five degrees, and the clamping components 2 switch to the position corresponding to the other four liquid supply components 4 and the corresponding grinding components 3, so as to perform synchronous grinding on the inner hole and outer raceway of the inner ring 13.

[0050] During the grinding process, the liquid supply component 4 continuously supplies coolant to the corresponding clamping component 2 and grinding component 3, which not only avoids disorderly splashing of coolant and optimizes the working environment, but also achieves sufficient cooling and lubrication, improves grinding efficiency, and reduces wear of grinding component 3. At the same time, the coolant carrying grinding particles can be discharged in time to ensure processing accuracy and cleanliness.

[0051] After the inner and outer sides of the inner ring 13 have been ground, the drive motor 10 drives the swing plate 12 to rotate forty-five degrees again, so that the four clamping components 2 correspond to the other four detection components 5, and perform precision detection on the inner and outer sides of the ground inner ring 13.

[0052] After the inspection is completed, the drive motor 10 drives the swing plate 12 to rotate to a position that is offset from the circular groove 14, so that the operator can disassemble and remove the already processed inner ring 13 in the clamping assembly 2 and re-clamp the inner ring 13 to be processed.

[0053] In summary, the present invention also provides a method for grinding and finishing the inner ring 13 of a bearing, comprising the following steps: S1, Inner ring installation: The inner ring 13 of the bearing to be processed is clamped into the clamping assembly 2 to complete the positioning and clamping fixation.

[0054] S2, Pre-grinding inspection: The drive motor 10 drives the swing plate 12 to rotate, so that the clamping assembly 2 moves to the station corresponding to the inspection assembly 5, and completes the inspection of the inner and outer diameter dimensions and inner and outer morphology of the inner ring 13 before grinding.

[0055] S3, Inner ring grinding: The drive motor 10 drives the swing plate 12 to rotate, so that the clamping component 2 switches to the station corresponding to the liquid supply component 4 and the grinding component 3, and performs synchronous grinding on the inner hole and outer raceway of the inner ring 13; during the grinding process, the liquid supply component 4 continuously supplies and recovers coolant to the grinding area to achieve cooling lubrication, anti-splashing and grinding debris discharge.

[0056] S4, Post-grinding inspection: Drive motor 10 drives swing plate 12 to rotate, causing clamping assembly 2 to move to the position corresponding to inspection assembly 5, and completes the precision inspection of inner ring 13 after grinding.

[0057] S5, Inner ring removal: After the inspection is completed, the drive motor 10 drives the swing plate 12 to rotate to the loading and unloading station to complete the disassembly of the processed inner ring 13 and the replacement of the inner ring 13 to be processed.

[0058] Reference Figure 4 As shown, the clamping assembly 2 is used to clamp the inner ring 13. Specifically, the clamping assembly 2 includes a clamping seat ring 20, which is installed at the end of the swing plate 12. A clamping ring 21 is installed inside the clamping seat ring 20. A three-jaw clamping member 22 for clamping the outer side of the inner ring 13 is installed inside the clamping ring 21. The three-jaw clamping member 22 is an existing three-jaw chuck structure. Its body is fixedly installed in a ring inside the clamping ring 21. A clamping end is installed inside the body. Several clamping ends are driven to move synchronously by the threaded disc inside, so as to clamp or release the outer side of the inner ring 13.

[0059] That is, the clamping seat 20 can swing with the swing plate 12, and then drive the inner ring 13 to swing through the clamping ring 21 and the three-jaw clamping member 22.

[0060] Reference Figures 4 to 8 As shown, this is a grinding assembly 3 used to grind the inner and outer sides of the inner ring 13. Specifically, the grinding assembly 3 includes a sliding shaft 30, several sliding shafts 30 are slidably disposed on the upper end of the substrate 1, an extension plate 31 is installed on the top of the sliding shaft 30, and an upper sealing plate 32 is rotatably disposed at the end of the extension plate 31 and is distributed vertically with the corresponding clamping ring 21. An abutment ring 33 is installed on the inner side of the corresponding clamping ring 21, and the bottom of the upper sealing plate 32 contacts the abutment ring 33. A structural groove 34 is opened in the clamping seat ring 20. The clamping ring 21 and the clamping seat ring 20 are in sliding fit, and a portion of the outer side of the clamping ring 21 extends into the structural groove 34 and a return spring 35 is installed between it and its inner wall.

[0061] That is, in the initial state, the return spring 35 drives the clamping ring 21 to be located in the clamping seat ring 20. When the swing plate 12 drives the clamping ring 21 to correspond with the upper sealing plate 32, the sliding shaft 30 is driven by external force to drive the upper sealing plate 32 to descend through the extension plate 31 and contact the top of the abutment ring 33. The abutment ring 33 drives the clamping ring 21 to slide down into the corresponding circular groove 14. At this time, the return spring 35 is stretched.

[0062] The top of the upper sealing plate 32 is provided with a sliding groove 36, and a sliding plate 37 is slidably installed in the sliding groove 36. Two outer shafts 38 and inner shafts 39 are respectively extended into the corresponding clamping rings 21 on the sliding plate 37. An outer grinding wheel 310 and an inner grinding wheel 311 are respectively fitted on the outer side of the outer shaft 38 and the inner shaft 39.

[0063] An electric actuator can be installed on the top of the upper sealing plate 32. The telescopic end of the electric actuator is connected to the sliding plate 37 to drive the sliding plate 37 to move within the sliding groove 36. At the same time, an external gear ring can be installed on the top of the upper sealing plate 32, and an external motor can be installed on the top of the extension plate 31. An external gear that meshes with the external gear ring is installed on the main shaft of the external motor. The external motor drives the upper sealing plate 32 to rotate at the end of the extension plate 31 through the external gear and the external gear ring. The sliding plate 37 can drive the corresponding outer shaft 38 and inner shaft 39 to move. The axis of the upper sealing plate 32 corresponds to the axis of the inner ring 13. The top of the outer shaft 38 and inner shaft 39 passes through the top of the sliding plate 37 and can also be connected to an external motor to drive it to rotate, so that the outer shaft 38 and inner shaft 39 drive the outer grinding wheel 310 and inner grinding wheel 311 to rotate. Through the movement of the sliding plate 37, the outer grinding wheel 310 and inner grinding wheel 311 can grind the outer raceway of the inner ring 13 and grind the inner surface of the inner ring 13, respectively.

[0064] When the upper sealing plate 32 rotates, it can drive the outer grinding wheel 310 and the inner grinding wheel 311 to rotate at a constant speed along the outer side of the inner ring 13, thereby achieving the effect of uniform grinding on the outer side of the inner ring 13.

[0065] It should be noted that the electric actuators and external motors mentioned above are not limited to those described in this article. Operators may use different applicable equipment for equivalent substitutions during operation.

[0066] An air supply pipe 312 is installed through the top of the upper sealing plate 32. During the grinding process, the liquid supply component 4 continuously supplies coolant between the clamping ring 21 and the upper sealing plate 32. The coolant can cool the outer grinding wheel 310 and the inner grinding wheel 311. After grinding is completed and the coolant flows out, the air supply end of the external air supply device can be connected to the air supply pipe 312. Gas is blown into the upper sealing plate 32 and the clamping ring 21 through the connecting pipe to blow away the coolant attached to the upper sealing plate 32, the three-jaw clamping member 22 and the inner ring 13, so as to avoid obstructing subsequent testing.

[0067] Meanwhile, a rubber sealing cloth can be installed between the sliding groove 36 and the sliding plate 37. The rubber sealing cloth is made of flexible material. When the sliding plate 37 moves, it can cause the rubber sealing cloth to contract, which is used to seal the empty part between the sliding groove 36 and the sliding plate 37 to prevent coolant and gas from spraying out.

[0068] Reference Figure 5 and Figure 9As shown, the liquid supply assembly 4 is used to supply and recover coolant to the inner ring 13 in the clamping assembly 2 during grinding; specifically, the liquid supply assembly 4 includes a lower sealing plate 40, which is installed inside the circular groove 14. A liquid supply pipe 41 is installed through the lower sealing plate 40, with one end of the liquid supply pipe 41 located inside the circular groove 14. The bottom of the clamping ring 21 passes through the circular groove 14 and contacts the top of the lower sealing plate 40.

[0069] When the clamping ring 21 is pressed into the circular groove 14 by the upper sealing plate 32, the upper and lower ends of the clamping ring 21 correspond to the ends of the upper sealing plate 32 and the lower sealing plate 40, respectively. The bottom of the upper sealing plate 32 is inserted into the clamping ring 21 and contacts the abutment ring 33, thereby increasing the contact area between the inner side of the clamping ring 21 and the outer side of the upper sealing plate 32. The lower sealing plate 40 and the outer side of the clamping ring 21 are both located in the circular groove 14, and the sealing performance can be improved by the inner wall of the circular groove 14. At this time, the upper and lower ends of the clamping ring 21 are blocked, and coolant can be supplied to the inside of the clamping ring 21 through the liquid supply pipe 41 to prevent coolant from overflowing through the gap.

[0070] Meanwhile, by opening the corresponding circular groove 14, the swing angle of the clamping ring 21 can be limited, preventing the swing plate 12 from swinging due to the reaction force generated by the grinding of multiple inner rings 13 during the grinding process.

[0071] The lower sealing plate 40 has a drainage chamber 42, and the two ends of the drainage chamber 42 are respectively connected to the upper and lower outer walls of the lower sealing plate 40. A vertical shaft 43 located in the drainage chamber 42 is slidably installed in the lower sealing plate 40. The top of the vertical shaft 43 passes through the drainage chamber 42 and enters the circular groove 14. Several throttling grooves 44 distributed along its axis are opened on the top of the vertical shaft 43. A quick discharge groove 45 communicating with the bottom of the throttling groove 44 is also opened on the outside of the vertical shaft 43. A drainage pipe 46 communicating with the drainage chamber 42 inside the lower sealing plate 40 is installed through the bottom of the lower sealing plate 40.

[0072] In the initial state, when coolant is supplied into the clamping ring 21, the upper and lower ends of the throttling groove 44 on the vertical shaft 43 are connected to the inside of the clamping ring 21 and the drain chamber 42, respectively. The coolant in the clamping ring 21 can flow into the drain chamber 42 through the multiple throttling grooves 44 and the fast drain groove 45 connected to them, and finally be discharged through the drain pipe 46. The initial supply speed of the supply pipe 41 is greater than the drain speed of the throttling groove 44, so that the coolant gradually submerges the inner ring 13 to be processed. Then the supply speed of the supply pipe 41 is adjusted to be consistent with the drain speed of the throttling groove 44, so that the inner ring 13, the outer grinding wheel 310 and the inner grinding wheel 311 can be ground in the state of being submerged in coolant, ensuring uniform grinding cooling, effectively suppressing grinding thermal deformation, and improving machining accuracy and surface quality.

[0073] Meanwhile, the continuous drainage of the throttling groove 44 can promptly settle and discharge the grinding impurities carried in the coolant, preventing impurities from participating in grinding and causing scratches on the workpiece surface and abnormal wear of the grinding wheel, thus ensuring the stability of machining accuracy.

[0074] After the grinding process is completed, the coolant adhering to the surface of the inner ring 13 is first blown off by air. After the blowing process is completed, the vertical shaft 43 is driven to rise, so that the quick discharge groove 45 connects the inside of the clamping ring 21 and the drain chamber 42 at the same time. Since the flow depth and cross-sectional area of ​​the quick discharge groove 45 are both greater than the sum of the flow cross-sections of all the throttling grooves 44, the coolant remaining inside the clamping ring 21 can flow into the drain chamber 42 quickly through the quick discharge groove 45 to complete the emptying. At the same time, the up and down sliding of the vertical shaft 43 can prevent grinding impurities from causing blockage at the sliding fit between the throttling groove 44 and the vertical shaft 43.

[0075] After all the above processes are completed, the upper sealing plate 32 rises and resets, and the clamping ring 21 returns to its initial position synchronously under the drive of the corresponding reset spring, so that the clamping ring 21 is disengaged from the circular groove 14, ensuring that the swing plate 12 can smoothly drive the clamping assembly 2 to complete the work position swing switching.

[0076] Reference Figure 10 As shown, the detection component 5 is used to perform precision detection on the inner and outer sides of the inner ring 13 before and after grinding. Specifically, the detection component 5 includes a sealing plate 50, which is installed inside the corresponding circular groove 14. Several support shafts 51 corresponding to the sealing plate 50 are also slidably passed through the base plate 1. A support plate 52 is installed on the top of the support shaft 51, and a cover plate 53 corresponding to the adjacent circular groove 14 is installed on one side of the support plate 52.

[0077] The structure of the sealing plate 50 is the same as that of the lower sealing plate 40, the structure of the support shaft 51 is the same as that of the sliding shaft 30, the structure of the support plate 52 is the same as that of the extension plate 31, and the structure of the cover plate 53 is the same as that of the upper sealing plate 32.

[0078] When the swing plate 12 drives the clamping assembly 2 to rotate to the detection station, so that the clamping ring 21 corresponds to the positions of the cover plate 53 and the sealing plate 50, the support shaft 51 drives the cover plate 53 to move downward through the support plate 52, and presses the clamping ring 21 into the circular groove 14 through the contact ring 33, so that the upper and lower ends of the clamping ring 21 correspond tightly to the ends of the cover plate 53 and the sealing plate 50, respectively. At this time, the sealing plate 50 and the cover plate 53 isolate the internal area of ​​the clamping ring 21 to form a sealed detection cavity. Existing detection equipment, such as a vision inspection device, can be installed on the sealing plate 50 or the cover plate 53 to perform precision detection on the inner and outer sides of the clamped and fixed inner ring 13. The sealed detection cavity can isolate the interference of external light, dust, water vapor and other environmental factors on the detection device, and ensure the accuracy of the detection results.

[0079] Example 2: Reference Figure 1 As shown, based on Embodiment 1, the number of swing plates on the outer side of the rotating ring 11 is changed from four to eight. Each swing plate 12 is equipped with a set of clamping components 2 at the end away from the rotating ring 11. The eight sets of clamping components 2 correspond to and match the eight circular grooves 14 on the substrate 1.

[0080] The operator first clamps the inner rings 13 of the bearing to be processed into eight sets of clamping components 2 in sequence, completing the positioning and clamping of all inner rings 13; then the drive motor 10 is started, driving the rotating ring 11 and all swing plates 12 to rotate synchronously, first moving four sets of clamping components 2 to the inspection station corresponding to the inspection component 5, completing the pre-inspection of the inner and outer diameter dimensions and inner and outer morphology of the four sets of inner rings 13 before grinding; then the drive motor 10 drives the swing plate 12 to rotate forty-five degrees, moving the four sets of clamping components 2 that have completed the pre-inspection to the grinding station corresponding to the fluid supply component 4 and the grinding component 3, and simultaneously carrying out the grinding of the inner hole and outer raceway of the inner ring 13, while the remaining four sets of clamping components 2 move synchronously to the inspection station to complete the pre-inspection of this batch of inner rings 13.

[0081] After the first batch of inner rings 13 are ground, the drive motor 10 drives the swing plate 12 to rotate 45 degrees again, so that the first batch of inner rings 13 that have been ground can be moved to the inspection station to complete the precision inspection after grinding. At the same time, the second batch of inner rings 13 that have completed the pre-inspection rotates with the swing plate 12 to the grinding station to carry out grinding. The remaining empty clamping components 2 rotate to the loading and unloading station to complete the disassembly of the processed inner rings 13 and the clamping of the inner rings 13 to be processed. In this way, by rotating the rotating ring 11 at intervals of 45 degrees, the entire process of clamping, pre-inspection, grinding, finished product inspection and disassembly of all inner rings 13 can be realized in a continuous cycle.

[0082] Through the layout design of the eight sets of swing plates 12 and the eight sets of clamping components 2 in this embodiment, the multi-process synchronous flow operation of multiple sets of inner rings 13 can be realized, reducing the process standby time of the equipment and further improving the batch processing efficiency of the bearing inner rings 13.

[0083] Furthermore, the number of circular grooves 14 is not limited to the eight described in this embodiment. Depending on the actual processing capacity requirements, swing plates 12 corresponding to the number can be set. The liquid supply components 4 and detection components 5 in the circular grooves 14 are still distributed alternately along the circumference of the circular grooves 14, and the same technical effects can be achieved as described above.

[0084] Example 3: Reference Figure 3 , Figure 9 , Figure 10 and Figure 11As shown, based on Embodiment 1 and Embodiment 2, the bottom of the support shaft 51 and the sliding shaft 30 are both slidably inserted to the bottom of the base plate 1 and are jointly installed with the linkage ring plate 6. Several linkage plates 60 connected to the bottom of the vertical shaft 43 are installed on the inner side of the linkage ring plate 6, and the end of the liquid supply pipe 41 slides through the body of the linkage plate 60.

[0085] A cylinder can be installed at the bottom of the base plate 1. The telescopic end of the cylinder is connected to the linkage ring plate 6. The cylinder can drive the linkage ring plate 6 to move up and down synchronously in the vertical direction, thereby driving the sliding shaft 30 and the support shaft 51 to move up and down synchronously. At the same time, the linkage ring plate 6 can drive all the vertical shafts 43 to move up and down synchronously through the linkage plate 60.

[0086] When the equipment switches to the grinding station, the cylinder drives the linkage ring plate 6 to move downward, which in turn drives all the sliding shafts 30 and support shafts 51 to move downward, so that the upper sealing plate 32 of the grinding component 3 and the cover plate 53 of the detection component 5 move downward simultaneously, thus completing the pressing of the clamping ring 21 into the groove and sealing of the station.

[0087] At the same time, the linkage ring plate 6 drives all the vertical shafts 43 to move downward synchronously through the linkage plate 60, so that the two ends of the throttling groove 44 on the vertical shaft 43 are respectively connected to the inside of the clamping ring 21 and the draining chamber 42, which is adapted to the uniform speed liquid supply, liquid drainage and immersion grinding operation requirements during the grinding process; after the grinding operation is completed, the cylinder drives the linkage ring plate 6 to move upward, and simultaneously drives the sliding shaft 30 and the support shaft 51 to move upward and reset, so that the grinding component 3 and the detection component 5 rise synchronously and disengage from the clamping ring 21.

[0088] Simultaneously, the linkage plate 60 drives the vertical shaft 43 to move upward synchronously, so that the two ends of the quick discharge groove 45 on the vertical shaft 43 are respectively connected to the inside of the clamping ring 21 and the draining chamber 42, realizing the rapid emptying of residual coolant in the clamping ring 21; through a single set of cylinders, the grinding component 3, the detection component 5 and the liquid supply component 4 are driven to move synchronously, which is adapted to the synchronous swing of multiple sets of swing plates 12, realizing the linkage of the grinding component 3, the detection component 5 and the liquid supply component 4, further improving the operating efficiency of the equipment.

[0089] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

[0090] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bearing inner ring grinding and finishing equipment, comprising a base plate (1), characterized in that: A rotating ring (11) is rotatably mounted in the middle of the substrate (1). Several swing plates (12) are evenly distributed along the circumference of the axis of the rotating ring (11) on the outer side of the rotating ring (11). A clamping assembly (2) for clamping the inner ring (13) is mounted on the side of the swing plate (12) away from the rotating ring (11). The substrate (1) has several circular grooves (14) evenly distributed around the axis of the rotating ring (11). The substrate (1) is also equipped with several grinding components (3) that match the distribution range and number of the swing plate (12). The grinding components (3) correspond one-to-one with the clamping components (2). The grinding components (3) are used to grind the inner and outer sides of the inner ring (13). Several circular grooves (14) are equipped with a liquid supply component (4) and a detection component (5), which are used to supply and recover coolant to the inner ring (13) in the clamping component (2) during grinding, and to perform precision detection on the inner and outer sides of the inner ring (13) before and after grinding.

2. The bearing inner ring grinding and finishing equipment according to claim 1, characterized in that: The clamping assembly (2) includes a clamping seat ring (20) installed at the end of the swing plate (12), a clamping ring (21) installed inside the clamping seat ring (20), and a three-jaw clamping member (22) for clamping the outer side of the inner ring (13) installed inside the clamping ring (21).

3. The bearing inner ring grinding and finishing equipment according to claim 2, characterized in that: The grinding assembly (3) includes several sliding shafts (30) that slide through the base plate (1). An extension plate (31) is installed on the top of the sliding shaft (30). An upper sealing plate (32) is rotatably provided at the end of the extension plate (31) and is distributed vertically with the corresponding clamping ring (21). An abutment ring (33) is installed on the inner side of the corresponding clamping ring (21). The bottom of the upper sealing plate (32) is in contact with the abutment ring (33). The clamping seat (20) has a structural groove (34) inside. The clamping ring (21) and the clamping seat (20) are in sliding fit. A portion of the outer side of the clamping ring (21) extends into the structural groove (34) and a return spring (35) is installed between it and its inner wall.

4. The bearing inner ring grinding and finishing equipment according to claim 3, characterized in that: The top of the upper sealing plate (32) is provided with a sliding groove (36), and a sliding plate (37) is slidably installed in the sliding groove (36). Two outer shafts (38) and inner shafts (39) are respectively extended into the corresponding clamping rings (21) on the sliding plate (37). An outer grinding wheel (310) and an inner grinding wheel (311) are respectively fitted on the outer side of the outer shaft (38) and the inner shaft (39).

5. The bearing inner ring grinding and finishing equipment according to claim 3, characterized in that: An air supply pipe (312) is installed through the top of the upper sealing plate (32).

6. The bearing inner ring grinding and finishing equipment according to claim 2, characterized in that: The liquid supply assembly (4) includes a lower sealing plate (40) installed in a circular groove (14), and a liquid supply pipe (41) is installed through the lower sealing plate (40), with one end of the liquid supply pipe (41) located in the circular groove (14); The bottom of the clamping ring (21) passes through the circular groove (14) and contacts the top of the lower sealing plate (40).

7. The bearing inner ring grinding and finishing equipment according to claim 6, characterized in that: The lower sealing plate (40) has a drainage cavity (42) inside, and the two ends of the drainage cavity (42) are respectively connected to the upper and lower outer walls of the lower sealing plate (40); A vertical shaft (43) located in the drain chamber (42) is slidably installed in the lower sealing plate (40). The top of the vertical shaft (43) passes through the drain chamber (42) and enters the circular groove (14). Several throttling grooves (44) distributed along its axis are opened on the top of the vertical shaft (43), and a quick discharge groove (45) that communicates with the bottom of the throttling grooves (44) is also opened on the outside of the vertical shaft (43). The bottom of the lower sealing plate (40) is connected to a drain pipe (46) that communicates with its internal drain chamber (42).

8. The bearing inner ring grinding and finishing equipment according to claim 1, characterized in that: The detection component (5) includes a sealing plate (50) installed in the corresponding circular groove (14), and several support shafts (51) corresponding to the sealing plate (50) are slidably passed through the base plate (1). A support plate (52) is installed on the top of the support shaft (51).

9. The bearing inner ring grinding and finishing equipment according to claim 8, characterized in that: A cover plate (53) corresponding to the adjacent circular groove (14) is installed on one side of the support plate (52).

10. A machining method using the bearing inner ring grinding and finishing equipment as described in any one of claims 1-9, characterized in that, Includes the following steps: S1, Inner ring installation: The inner ring (13) of the bearing to be processed is clamped into the clamping assembly (2) to complete the positioning and clamping fixation; S2, Pre-grinding inspection: The rotating ring (11) drives the swing plate (12) to rotate, so that the clamping assembly (2) moves to the station corresponding to the inspection assembly (5) to complete the inspection of the inner and outer diameter dimensions and inner and outer morphology of the inner ring (13) before grinding; S3, Inner ring grinding: The swing plate (12) rotates to switch the clamping assembly (2) to the station corresponding to the liquid supply assembly (4) and the grinding assembly (3) to grind the inner hole and outer raceway of the inner ring (13) simultaneously. During the grinding process, the liquid supply component (4) continuously supplies and recovers coolant to the grinding area; S4, Post-grinding inspection: The swing plate (12) rotates to move the clamping assembly (2) to the station corresponding to the inspection assembly (5) to complete the precision inspection of the inner ring (13) after grinding; S5, Inner ring removal: After the inspection is completed, the swing plate (12) drives the clamping assembly (2) to rotate to the loading and unloading station for disassembly and replacement.

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