An on-line aligning type rotary bearing device for superfinishing a coating bearing outer ring groove

Abstract

The application relates to the technical field of bearing part supporting, in particular to an on-line aligning type rotary supporting device for coating bearing outer ring channel superfining, which is characterized in that: the device comprises a positioning installation base plate, the positioning installation base plate comprises a supporting plate, supporting body rear end slides and supporting body front end slides are arranged at the top of both ends of the supporting plate; the rear end supporting body is slidably installed in the supporting body rear end slide, a front end supporting body is slidably installed in the supporting body front end slide, a bearing seat is arranged at the top of the front end supporting body, a ceramic bearing assembly is arranged on the bearing seat, and a rebound turning assembly is arranged at the top of the rear end supporting body; the device has the beneficial effect that the front end supporting body is driven to rotate through the rebound turning assembly, the rotating shaft direction of the ceramic bearing is adjusted, the effect that the coating bearing outer ring and the ceramic bearing form benign rolling contact is achieved, and the risks of coating scratching and crushing caused by sliding friction are eliminated.

Description

Technical Field

[0001] This invention relates to the field of bearing component support technology, specifically to an online rotary support device for ultra-precision coating of outer ring raceway of coated bearings. Background Technology

[0002] With the development of high-end equipment manufacturing, coated bearings are increasingly widely used in new energy, precision transmission, and extreme environment equipment due to their excellent wear resistance, corrosion resistance, and electrical insulation properties.

[0003] The outer ring surface of this type of bearing is usually coated with a thin layer of functional material, which has high hardness and is sensitive to bonding forces, making it a "fragile" surface. In the ultra-precision machining process of the bearing outer ring raceway, the outer ring outer surface needs to be clamped on a support device and rotated at high speed. However, the existing technology generally uses fixed rigid supports, which has the following two major drawbacks:

[0004] (1) Coating surface damage problem: There is sliding friction between the outer ring of the bearing and the fixed support, and the contact stress is large, which can easily cause scratches, indentations or even peeling to the precision coating, resulting in irreversible damage and scrapping of the workpiece;

[0005] (2) The self-alignment process is cumbersome and inefficient: In order to ensure the concentricity of the groove grinding and ultra-precision, the rotation center of the workpiece needs to be precisely adjusted (commonly known as "eccentric adjustment"). Existing methods often require disassembling the entire support plate assembly from the grinding platform, performing offline manual grinding or adjustment, and then reinstalling and aligning it. This process interrupts production, is time-consuming, and the accuracy depends on the worker's experience and is difficult to maintain, which seriously restricts the consistency of production efficiency and processing quality.

[0006] Therefore, it is necessary to innovate and invent an online self-aligning rotary bearing device for ultra-precision machining of the outer ring groove of coated bearings. This device can actively protect the fragile coating surface during the machining process and achieve fast, accurate, and non-disassembly-free online eccentric adjustment to meet the high-quality and high-efficiency machining requirements of coated bearings. Summary of the Invention

[0007] To achieve the above objectives, the present invention provides the following technical solution: an online self-aligning rotary bearing device for ultra-precision machining of the outer ring raceway of coated bearings, comprising a positioning mounting base plate, a rotary bearing module, and an online self-aligning reference module;

[0008] The positioning and mounting base plate includes a support plate. A self-aligning hexagonal hole is provided in the center of the top surface of the support plate. A curved groove is provided on one side of the support plate. A hard alloy support point and a support plate limiting assembly are installed on the other side. A rear slide rail and a front slide rail are provided at the top of both ends of the support plate. The front slide rail is located between the rear slide rail and the curved groove.

[0009] The rotary support module includes a rear support body, which is slidably installed in the rear slide rail of the support body. A front support body is slidably installed in the front slide rail of the support body. A bearing seat is installed on the top of the front support body, and a ceramic bearing assembly is installed on the bearing seat. A front support body connector is also installed on the top surface of the front support body. A spring-loaded steering assembly is installed on the top of the rear support body. The spring-loaded steering assembly includes a sleeve, which is installed on the top of the rear support body. A rotating rod is rotatably installed in the sleeve. The front end of the rotating rod is connected to the front support body connector. A rear support body limiting assembly is provided on the side of the rear support body away from the front support body.

[0010] The online self-aligning reference module includes a self-aligning sample ring, a sample ring connecting rod is rotatably mounted on the top of the self-aligning sample ring, and a hexagonal pin is installed at the end of the sample ring connecting rod away from the self-aligning sample ring, the hexagonal pin being inserted into the self-aligning hexagonal hole.

[0011] Preferably, the rebound steering assembly includes a fixed bevel collar, which is fixedly installed on the inner wall of the sleeve, and a rotating bevel collar is fixedly installed on the outer wall of the rotating rod. The rotating bevel collar is located on the side of the fixed bevel collar away from the front support connector, and the rotating bevel collar and the fixed bevel collar are provided with a slope surface that can fit into each other on the side that is close to each other.

[0012] Preferably, the front end of the rotating rod is provided with an annular protrusion, and a return spring is fitted on the outer wall of the rotating rod. The return spring is disposed between the annular protrusion at the front end of the rotating rod and the fixed bevel collar. The front end support connector is connected to the front end of the rotating rod through the front end support fastening screw.

[0013] Preferably, the rear end of the rotating rod is provided with a handle structure, and a spring locking pin is embedded in the handle structure at the rear end of the rotating rod. The inner wall of the end of the sleeve away from the front support body connector is provided with an annular limiting groove, and the front end of the spring locking pin can be inserted into the annular limiting groove.

[0014] Preferably, the rear support body has sliding grooves on both sides of the top surface of the rear support body, the inner wall of the sliding groove of the rear support body has a protruding structure, the rear support body fastening screw is inserted into the sliding groove of the rear support body, and the lower end of the rear support body fastening screw passes through the sliding groove and is installed in the rear slide of the support body.

[0015] Preferably, the rear support limiting assembly includes a fixing block, with fixing block fastening screws installed through both ends of the fixing block. The fixing block is fixedly installed in the rear slide of the support body by the fixing block fastening screws. A support body limiting screw is threaded in the middle of the fixing block in the horizontal direction, and a second support head fastening screw is threaded in the vertical direction of the fixing block. The lower end of the second support head fastening screw abuts against the middle of the support body limiting screw.

[0016] Preferably, the ceramic bearing assembly includes an inner ceramic bearing ring and an outer ceramic bearing ring. The inner ceramic bearing ring is installed inside the outer ceramic bearing ring. Curved slides are provided on both the outer side of the inner ceramic bearing ring and the inner side of the outer ceramic bearing ring. A plurality of ceramic rolling elements are filled between the curved slides of the inner and outer ceramic bearing rings.

[0017] Preferably, the upper end of the bearing housing is provided with an expansion screw hole, the inner ring of the ceramic bearing is sleeved and installed on the outer wall of the expansion screw hole, and the top bolt of the expansion screw hole is screwed into a tapered screw.

[0018] Preferably, a bearing seat fastening screw is inserted into one side of the bottom of the front support body, and a bearing seat fastening screw hole is provided on one side of the bottom of the bearing seat. The bearing seat fastening screw passes through the bottom of the front support body and is screwed into the bearing seat fastening screw hole. The front support body connector is fixedly installed on the top of the front support body by the front support body fastening screw.

[0019] Preferably, a support plate fastening screw is inserted and installed on the support plate. The support plate limiting assembly includes a support plate limiting block, which is located on the side of the support plate away from the curved groove. A positioning conical pin and a limiting block fastening screw are inserted and installed on the support plate limiting block. The support plate limiting block is threaded with a support plate limiting screw in the horizontal direction, and the front end of the support plate limiting screw abuts against a carbide support point. The support plate limiting block is threaded with a first support head fastening screw in the vertical direction, and the lower end of the first support head fastening screw abuts against the middle of the support plate limiting screw.

[0020] The beneficial effects of the present invention are: (1) By operating the spring-back steering component on the rear support body, the front support body is rotated and the rotation direction of the ceramic bearing is adjusted so that the outer ring of the coated bearing can form a good rolling contact with the ceramic bearing during filling or processing, thus eliminating the risk of coating scratches and crushing caused by sliding friction, providing a reliable guarantee for the processing of high value-added coated bearings and reducing the scrap rate.

[0021] (2) Through the online self-aligning mechanism of “self-aligning hexagonal hole - hexagonal pin + self-aligning sample ring”, the traditional offline, experience-based self-aligning that takes several hours can be transformed into an online, standardized operation that can be completed in a few minutes. It has the advantages of high self-aligning accuracy and good repeatability and consistency, and realizes the digitalization and programmable preset of machining accuracy.

[0022] (3) The entire device adopts a rigid design and uses multiple locking and positioning to ensure overall stability under high-speed rotation and ultra-precision vibration processes, and the processing quality is stable and reliable.

[0023] (4) The device adopts a modular structure and can be adapted to coated bearing outer rings of different sizes by replacing the self-aligning ring and adjusting the support position. It is easy to upgrade and modify on the existing grinding platform and can also be integrated into the design of new equipment as a standard functional module. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of online self-alignment provided by the present invention;

[0025] Figure 2 This is a schematic diagram of the coating bearing outer ring filling provided by the present invention;

[0026] Figure 3 This is a schematic diagram of the machining process for the outer ring of the coated bearing provided by the present invention;

[0027] Figure 4 This is a top view of the outer ring of the coated bearing in the machining state provided by the present invention;

[0028] Figure 5 Detailed diagram of the machining state of the outer ring of the coated bearing provided by this invention;

[0029] Figure 6 This is a cross-sectional view of the outer ring of the coated bearing in the machining state provided by the present invention;

[0030] Figure 7 A top view of the online self-aligning status provided by the present invention;

[0031] Figure 8 A cross-sectional view of the online self-aligning state provided by the present invention;

[0032] Figure 9 A cross-sectional view of the ceramic bearing and bearing housing provided by the present invention;

[0033] Figure 10 This is a schematic diagram of the installation of the rotary support module provided by the present invention;

[0034] Figure 11 This is a schematic diagram of the installation of the ceramic bearing and bearing housing provided by the present invention;

[0035] Figure 12This is a schematic diagram of the installation of the front support body and connector provided by the present invention;

[0036] Figure 13 This is a cross-sectional view of the rear support body and fixing block provided by the present invention;

[0037] Figure 14 This is a schematic diagram of the internal structure of the rebound steering component provided by the present invention;

[0038] Figure 15 A cross-sectional view of the rotating rod provided by the present invention.

[0039] In the diagram: 111. Support plate; 112. Self-aligning hexagonal hole; 113. Carbide support point; 114. Support plate fastening screw; 115. Rear end slide rail of support body; 116. Front end slide rail of support body; 121. Sample ring connecting rod; 122. Hexagonal pin; 123. Self-aligning sample ring; 131. Support plate limiting block; 132. Positioning conical pin; 133. Limiting block fastening screw; 134. Support plate limiting screw; 135. First support head fastening screw; 141. Fixing block; 142. Fixing block fastening screw; 143. Support body limiting screw; 144. Second support head fastening screw; 151. Rear end support body; 152. Rear end support body fastening screw. 153. Sleeve; 154. Annular limiting groove; 155. Rotating rod; 156. Spring locking pin; 157. Rotating bevel collar; 158. Fixed bevel collar; 159. Return spring; 161. Front support body; 162. Bearing housing; 163. Expansion screw hole; 164. Bearing housing fastening screw hole; 165. Bearing housing fastening screw; 166. Tapered screw; 167. Front support body connector; 168. Front support body fastening screw; 169. Support body connector fastening screw; 171. Ceramic bearing inner ring; 172. Ceramic bearing outer ring; 173. Ceramic rolling element; 18. Coated bearing outer ring end face positioning support; 19. Coated bearing outer ring. Detailed Implementation

[0040] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0041] like Figure 1 - Figure 12 As shown, an online self-aligning rotary bearing device for ultra-precision machining of the outer ring raceway of coated bearings further includes a positioning mounting base plate, a rotary bearing module, and an online self-aligning reference module.

[0042] The positioning and mounting base plate includes a support plate 111. A self-aligning hexagonal hole 112 is provided in the center of the top surface of the support plate 111. A curved groove is provided on one side of the support plate 111, and a hard alloy support point 113 and a support plate limiting assembly are installed on the other side. A rear slide rail 115 and a front slide rail 116 are provided at the top of both ends of the support plate 111. The front slide rail 116 is located between the rear slide rail 115 and the curved groove.

[0043] The rotary support module includes a rear support body 151, which is slidably installed in the rear slide rail 115 of the support body. A front support body 161 is slidably installed in the front slide rail 116 of the support body. A bearing seat 162 is installed on the top of the front support body 161. A ceramic bearing assembly is installed on the bearing seat 162. A front support body connector 167 is also installed on the top surface of the front support body 161. A spring-loaded steering assembly is installed on the top of the rear support body 151. The spring-loaded steering assembly includes a sleeve 153, which is installed on the top of the rear support body 151. A rotating rod 155 is rotatably installed in the sleeve 153. The front end of the rotating rod 155 is connected to the front support body connector 167. A rear support body limiting assembly is provided on the side of the rear support body 151 away from the front support body 161.

[0044] The online self-aligning reference module includes a self-aligning sample ring 123. A sample ring connecting rod 121 is rotatably mounted on the top of the self-aligning sample ring 123. A hexagonal pin 122 is installed at the end of the sample ring connecting rod 121 away from the self-aligning sample ring 123. The hexagonal pin 122 is inserted into the self-aligning hexagonal hole 112.

[0045] In the above embodiments, it should be noted that the device includes two positioning and mounting base plates, which are symmetrically arranged on both sides of the positioning support 18 on the outer ring end face of the coated bearing. Two rotating support modules are provided on the positioning and mounting base plates. The positioning support 18 on the outer ring end face of the coated bearing is a structure built into the grinding platform and is used to drive the outer ring 19 of the coated bearing to rotate for processing. During processing, the outer ring 19 of the coated bearing is placed above the positioning support 18 on the outer ring end face of the coated bearing.

[0046] According to the eccentricity parameters required by the process, the corresponding self-aligning sample ring 123 is selected, and the self-aligning sample ring 123 is fixedly connected to the sample ring connecting rod 121 by bolts. Then, the hexagonal pin 122 is inserted into the hexagonal hole 112. Subsequently, the position of the rear support body 151 in the rear slide rail 115 of the support body is slidably adjusted, which drives the front support body 161 and the ceramic bearing assembly in the front slide rail 116 of the support body to approach the self-aligning sample ring 123, so that the ceramic bearing assembly is tightly attached to the surface of the self-aligning sample ring 123. Then, the position of the rear support body 151 is locked, so as to achieve the effect of transforming the traditional offline, experience-based self-aligning that takes several hours into an online, standardized operation that can be completed in a few minutes through the online self-aligning mechanism of "self-aligning hexagonal hole - hexagonal pin + self-aligning sample ring". It has the advantages of high self-aligning accuracy and good repeatability and consistency, and realizes the digital and programmable preset of processing accuracy.

[0047] After completing the self-aligning step, remove the online self-aligning reference module and place the coated bearing outer ring 19 between the positioned rotating support modules. The ceramic bearing assembly directly supports and contacts the outer surface of the coated bearing outer ring 19, and rotates accordingly during workpiece insertion and rotation, achieving the effect of "rolling instead of sliding". By rotating the rotating rod 155 in the sleeve 153 of the rear support body 151, the front support body connector 167 and the front support body 161 are driven to rotate, thereby adjusting the rotation axis direction of the ceramic bearing steering assembly. This ensures that the coated bearing outer ring 19 can form a good rolling contact with the ceramic bearing during both loading and processing, eliminating the risk of coating scratches and crushing caused by sliding friction. This provides a reliable guarantee for the processing of high-value-added coated bearings and significantly reduces the scrap rate.

[0048] In addition, the entire device adopts a rigid design and achieves multiple locking and positioning through the support plate limiting components, ensuring overall stability under high-speed rotation and ultra-precision vibration processes, and ensuring stable and reliable processing quality. The device adopts a modular structure and can be adapted to different sizes of coated bearing outer rings by replacing the self-aligning ring and adjusting the support position. It is easy to upgrade and modify on the existing grinding platform, and can also be integrated into the design of new equipment as a standard functional module.

[0049] like Figure 5 , Figure 6 and Figure 12 - Figure 15As shown, an online self-aligning rotary bearing device for ultra-precision super-precision of the outer ring raceway of coated bearings further includes a spring-loaded steering assembly comprising a fixed bevel collar 158, which is fixedly installed on the inner wall of a sleeve 153. A rotating bevel collar 157 is fixedly installed on the outer wall of a rotating rod 155. The rotating bevel collar 157 is located on the side of the fixed bevel collar 158 away from the front end support connector 167. The rotating bevel collar 157 and the fixed bevel collar 158 have mutually engaging sloped surfaces on their adjacent sides. The front end of the rotating rod 155 has an annular protrusion. A return spring 159 is fitted on the outer wall of the rotating rod 155. The return spring 159 is located between the annular protrusion at the front end of the rotating rod 155 and the fixed angled collar 158. The front support body connector 167 is connected to the front end of the rotating rod 155 through the front support body fastening screw 168. A handle structure is provided at the rear end of the rotating rod 155. A spring locking pin 156 is embedded in the handle structure at the rear end of the rotating rod 155. An annular limiting groove 154 is provided on the inner wall of the end of the sleeve 153 away from the front support body connector 167. The front end of the spring locking pin 156 can be inserted into the annular limiting groove 154.

[0050] In the above embodiments, it should be noted that the reed locking pin 156 has a V-shaped structure. When the front end of the reed locking pin 156 is inserted into the annular limiting groove 154, the rotating rod 155 is in a locked state and can only rotate, but cannot slide in the horizontal direction.

[0051] By pinching the spring locking pins 156 on both sides of the rear handle of the rotating rod 155, the front end of the spring locking pin 156 retracts inward and disengages from the annular limiting groove 154. Then, the rotating rod 155 is rotated counterclockwise by 45°. The rotating rod 155 drives the rotating bevel collar 157 to rotate. The slope surface of the rotating bevel collar 157 presses against the slope surface of the fixed bevel collar 158. The reverse action of the rotating rod 155 slides and compresses the return spring 159, so as to drive the front support body connector 167 and the ceramic bearing assembly to rotate 45° while retracting a certain distance away from the surface of the outer ring 19 of the coated bearing, so as to avoid wear on the surface of the outer ring 19 of the coated bearing when the ceramic bearing assembly rotates.

[0052] After rotating the beveled collar 157 counterclockwise by 45°, it reaches the highest point of the slope of the fixed beveled collar 158. Then, under the push of the return spring 159, the rotating rod 155 rebounds, and the beveled collar 157 re-engages with the fixed beveled collar 158, releasing the spring locking pin 156. The front end of the spring locking pin 156 is reinserted into the annular limiting groove 154, so as to achieve the effect of driving the ceramic bearing assembly to re-clamp and lock the surface of the coated bearing outer ring 19 after rotation.

[0053] like Figure 4 - Figure 6 and Figure 10 - Figure 13 As shown, an online self-aligning rotary bearing device for ultra-precision super-precision of the outer ring groove of a coated bearing further includes: a rear support body 151 with sliding grooves on both sides of its top surface, the inner wall of the sliding grooves of the rear support body 151 having a protruding structure; a rear support body fastening screw 152 inserted into the sliding grooves of the rear support body 151, the lower end of the rear support body fastening screw 152 passing through the sliding grooves and installed in the rear slide rail 115 of the support body; a rear support body limiting assembly including a fixing block 141, with fixing block fastening screws 142 installed through both ends of the fixing block 141, the fixing block 141 being fixedly installed in the rear slide rail 115 of the support body by the fixing block fastening screws 142; a support body limiting screw 143 threaded in the horizontal direction in the middle of the fixing block 141; and a second support head fastening screw 144 threaded in the vertical direction in the fixing block 141, the lower end of the second support head fastening screw 144 abutting against the middle of the support body limiting screw 143.

[0054] In the above embodiment, it should be noted that the locking process of the rear support 151 is as follows: First, the front support 161, the front support connector 167 and the rear support 151 are installed and connected together. Then, the rear support 151 is placed in the rear slide rail 115 of the support. Next, the fixing block fastening screw 142 is tightened to install the fixing block 141 in the rear slide rail 115 of the support. The rear support 151 is pushed manually or with the help of tools to drive the ceramic bearing assembly on the front support 161 to make uniform contact with the outer circle of the self-aligning ring 123. The rear support 151 is pressed by rotating the support limiting screw 143. Then, the second support head fastening screw 144 is tightened to press the support limiting screw 143. Finally, the support fastening screw 152 is turned to press the protrusion provided on the inner wall of the slide rail of the rear support 151 to achieve the effect of completely locking the rear support 151.

[0055] like Figure 1 - Figure 6 and Figure 9 - Figure 15As shown, an online self-aligning rotary bearing device for ultra-precision super-precision of the outer ring raceway of a coated bearing further includes a ceramic bearing assembly comprising a ceramic bearing inner ring 171 and a ceramic bearing outer ring 172. The ceramic bearing inner ring 171 is mounted inside the ceramic bearing outer ring 172. Curved slides are provided on both the outer side of the ceramic bearing inner ring 171 and the inner side of the ceramic bearing outer ring 172. A plurality of ceramic rolling elements 173 are filled between the curved slides of the ceramic bearing inner ring 171 and the ceramic bearing outer ring 172. An expansion screw hole 1 is provided at the upper end of the bearing housing 162. 63. The inner ring 171 of the ceramic bearing is fitted into the expansion screw hole 163 on the outer wall. The top bolt of the expansion screw hole 163 is screwed into the tapered screw 166. A bearing seat fastening screw 165 is inserted into one side of the bottom of the front support body 161. A bearing seat fastening screw hole 164 is provided on one side of the bottom of the bearing seat 162. The bearing seat fastening screw 165 passes through the bottom of the front support body 161 and is screwed into the bearing seat fastening screw hole 164. The front support body connector 167 is fixedly installed on the top of the front support body 161 by the front support body fastening screw 168.

[0056] In the above embodiments, it should be noted that, in the initial state, the inner ring 171 and the outer ring 172 of the ceramic bearing are in a vertical state. When the rear support body 151 is locked, the outer ring 172 of the ceramic bearing in the vertical state will roll when the self-aligning ring 123 is pulled out upward, so as to reduce the resistance when the self-aligning ring 123 is taken out and reduce the wear of the outer ring 172 of the ceramic bearing on the surface of the self-aligning ring 123.

[0057] When the coated bearing outer ring 19 is then placed in, the coated bearing outer ring 19 drives the ceramic bearing outer ring 172 to rotate through friction. The ceramic bearing inner ring 171 is isolated and relatively stationary through the ceramic rolling element 173, thereby converting the sliding friction between the coated bearing outer ring 19 and the ceramic bearing outer ring 172 into rolling friction inside the bearing. The contact stress is reduced sharply, reducing the wear on the coated bearing outer ring 19 when it is placed in.

[0058] When the outer ring 19 of the coated bearing is processed, the inner ring 171 and the outer ring 172 of the ceramic bearing are laid flat. When the outer ring 19 of the coated bearing rotates, the outer ring 172 of the ceramic bearing rotates accordingly, achieving the effect of "rolling instead of sliding" and reducing the wear on the surface of the outer ring 19 of the coated bearing when it rotates.

[0059] By fitting the inner ring 171 of the ceramic bearing onto the outer wall of the expansion screw hole 163, and then screwing the tapered screw 166 into the expansion screw hole 163, the expansion screw hole 163 expands and squeezes the inner ring 171 of the ceramic bearing, thereby achieving the effect of mounting the inner ring 171 and the outer ring 172 of the ceramic bearing onto the bearing housing 162.

[0060] After the bearing housing 162 is inserted into the front support body 161, the bearing housing 162 is fixedly installed by screwing the bearing housing fastening screw 165 into the bearing housing fastening screw hole 164.

[0061] like Figure 1 - Figure 7 and Figure 10 - Figure 13 As shown, an online self-aligning rotary bearing device for ultra-precision super-precision of the outer ring groove of a coated bearing further includes: a support plate fastening screw 114 inserted and installed on a support plate 111; a support plate limiting assembly including a support plate limiting block 131, the support plate limiting block 131 being disposed on the side of the support plate 111 away from the curved groove; a positioning conical pin 132 and a limiting block fastening screw 133 inserted and installed on the support plate limiting block 131; a support plate limiting screw 134 threadedly installed on the support plate limiting block 131 in the horizontal direction, the front end of the support plate limiting screw 134 abutting against the hard alloy support point 113; and a first support head fastening screw 135 threadedly installed on the support plate limiting block 131 in the vertical direction, the lower end of the first support head fastening screw 135 abutting against the middle of the support plate limiting screw 134.

[0062] In the above embodiment, it should be noted that the support plate 111 is first initially installed on the adapter interface of the grinding platform using the support plate fastening screw 114. The support plate fastening screw 114 is not tightened. The support plate limiting block 131 is precisely installed on the designated position on the grinding platform using the positioning conical pin 132 and the limiting block fastening screw 133. The support plate limiting screw 134 of the support plate limiting block 131 is made so that its end contacts the carbide support point 113. The support plate 111 is adjusted at the micron level in the X and Y directions. After the adjustment is in place, the support plate 111 is limited by rotating the first support head fastening screw 135 to press the support plate limiting screw 134. Then the support plate fastening screw 114 is tightened to press and fix the support plate 111, forming multiple anti-loosening guarantees.

[0063] The usage process of this invention is as follows: Those skilled in the art first initially install the support plate 111 onto the adapter interface of the grinding platform using the support plate fastening screws 114, without tightening the support plate fastening screws 114. Then, the support plate limiting block 131 is precisely installed at a designated position on the grinding platform using the positioning conical pin 132 and the limiting block fastening screws 133. The support plate limiting screws 134 of the support plate limiting block 131 are positioned so that their ends contact the carbide support point 113, allowing for micron-level position adjustment of the support plate 111 in the X and Y directions. After adjustment, the support plate 111 is limited by rotating the first support head fastening screw 135 to press the support plate limiting screws 134. Finally, the support plate fastening screws 114 are tightened to press and fix the support plate 111. According to the process... To meet the required eccentricity parameters, select the corresponding self-aligning sample ring 123 and fix the self-aligning sample ring 123 to the sample ring connecting rod 121 with bolts. Then, insert the hexagonal pin 122 into the hexagonal hole 112 and place the self-aligning sample ring 123 above the positioning support 18 on the outer ring end face of the coated bearing. Manually or with the help of tools, gently push the rear support body 151 to drive the ceramic bearing outer ring 172 on the front support body 161 to make uniform contact with the outer circle of the self-aligning sample ring 123. Press the rear support body 151 by rotating the support body limiting screw 143, then tighten the second support head fastening screw 144 to press the support body limiting screw 143. Finally, turn the support body fastening screw 152 to press it against the protrusion set on the inner wall of the slide groove of the rear support body 151 to completely lock the rear support body 151.Remove the self-aligning ring 123 and install it into the coated bearing outer ring 19. Then, pinch the spring locking pins 156 on both sides of the rear handle of the rotating rod 155, causing the front end of the spring locking pin 156 to retract inward and disengage from the annular limiting groove 154. Next, rotate the rotating rod 155 counterclockwise by 45°. The rotating rod 155 drives the rotating bevel collar 157 to rotate. The slope surface of the rotating bevel collar 157 presses against the slope surface of the fixed bevel collar 158, and in the opposite direction, the rotating rod 155 slides and compresses the return spring 159, so that while driving the front support connecting piece 167 and the ceramic bearing outer ring 172 to rotate, they retract a certain distance away from the surface of the coated bearing outer ring 19, avoiding wear on the surface of the coated bearing outer ring 19 when the ceramic bearing outer ring 172 rotates. Rotate the bevel collar... After rotating 45° counterclockwise, ring 157 reaches the highest point of the slope of the fixed angled collar 158. Then, pushed by the return spring 159, the rotating rod 155 springs back, causing the angled collar 157 to re-engage with the fixed angled collar 158. This releases the spring locking pin 156, and the front end of the spring locking pin 156 re-inserts into the annular limiting groove 154, allowing the ceramic bearing outer ring 172 to re-clamp and lock the surface of the coated bearing outer ring 19 after rotation. Finally, the coated bearing outer ring end face positioning support 18 is activated to process the coated bearing outer ring 19. The coated bearing outer ring end face positioning support 18 drives the coated bearing outer ring 19 to rotate. As the coated bearing outer ring 19 rotates, the ceramic bearing outer ring 172 rotates accordingly, reducing surface wear during the rotation of the coated bearing outer ring 19.

[0064] The above description is merely a preferred embodiment of the present invention. Any person skilled in the art can modify the present invention or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An online self-aligning rotary bearing device for ultra-precision machining of the outer ring raceway of coated bearings, comprising a positioning mounting base plate, a rotary bearing module, and an online self-aligning reference module, characterized in that: The positioning and mounting base plate includes a support plate. A self-aligning hexagonal hole is provided in the center of the top surface of the support plate. A curved groove is provided on one side of the support plate. A hard alloy support point and a support plate limiting assembly are installed on the other side. A rear slide rail and a front slide rail are provided at the top of both ends of the support plate. The front slide rail is located between the rear slide rail and the curved groove. The rotary support module includes a rear support body, which is slidably installed in the rear slide rail of the support body. A front support body is slidably installed in the front slide rail of the support body. A bearing seat is installed on the top of the front support body, and a ceramic bearing assembly is installed on the bearing seat. A front support body connector is also installed on the top surface of the front support body. A spring-loaded steering assembly is installed on the top of the rear support body. The spring-loaded steering assembly includes a sleeve, which is installed on the top of the rear support body. A rotating rod is rotatably installed in the sleeve. The front end of the rotating rod is connected to the front support body connector. A rear support body limiting assembly is provided on the side of the rear support body away from the front support body. The online self-aligning reference module includes a self-aligning sample ring, a sample ring connecting rod rotatably mounted on the top of the self-aligning sample ring, and a hexagonal pin installed at the end of the sample ring connecting rod away from the self-aligning sample ring, the hexagonal pin being inserted into a self-aligning hexagonal hole; The rebound steering assembly includes a fixed bevel collar, which is fixedly installed on the inner wall of the sleeve. A rotating bevel collar is fixedly installed on the outer wall of the rotating rod. The rotating bevel collar is located on the side of the fixed bevel collar away from the front support connector. The rotating bevel collar and the fixed bevel collar have mutually engaging slopes on their adjacent sides. The front end of the rotating rod has an annular protrusion. A return spring is fitted onto the outer wall of the rotating rod, and the return spring is located between the annular protrusion at the front end of the rotating rod and the fixed bevel collar. The front support connector is connected via the front support body. The fastening screw is connected to the front end of the rotating rod. The rear end of the rotating rod is provided with a handle structure. A spring locking pin is embedded in the handle structure at the rear end of the rotating rod. An annular limiting groove is provided on the inner wall of the end of the sleeve away from the front support body connector. The front end of the spring locking pin can be inserted into the annular limiting groove. The top surface of the rear support body is provided with sliding grooves that penetrate the rear support body on both sides. The inner wall of the sliding groove of the rear support body is provided with a protruding structure. The rear support body fastening screw is inserted into the sliding groove of the rear support body. The lower end of the rear support body fastening screw passes through the sliding groove and is installed in the rear slide of the support body.

2. The online self-aligning rotary bearing device for ultra-precision super-precision of the outer ring raceway of a coated bearing according to claim 1, characterized in that: The rear support limiting assembly includes a fixing block, with fixing block fastening screws installed through both ends of the fixing block. The fixing block is fixedly installed in the rear slide rail of the support body by the fixing block fastening screws. A support body limiting screw is threaded in the middle of the fixing block in the horizontal direction, and a second support head fastening screw is threaded in the vertical direction of the fixing block. The lower end of the second support head fastening screw abuts against the middle of the support body limiting screw.

3. The online self-aligning rotary bearing device for ultra-precision super-precision of the outer ring raceway of a coated bearing according to claim 1, characterized in that: The ceramic bearing assembly includes an inner ceramic bearing ring and an outer ceramic bearing ring. The inner ceramic bearing ring is installed inside the outer ceramic bearing ring. Curved slides are provided on both the outer side of the inner ceramic bearing ring and the inner side of the outer ceramic bearing ring. A plurality of ceramic rolling elements are filled between the curved slides of the inner and outer ceramic bearing rings.

4. The online self-aligning rotary bearing device for ultra-precision super-precision of the outer ring raceway of a coated bearing according to claim 3, characterized in that: An expansion screw hole is provided at the upper end of the bearing housing. The inner ring of the ceramic bearing is fitted onto the outer wall of the expansion screw hole, and a tapered screw is screwed into the top of the expansion screw hole.

5. The online self-aligning rotary bearing device for ultra-precision super-precision of the outer ring raceway of a coated bearing according to claim 4, characterized in that: A bearing seat fastening screw is inserted into one side of the bottom of the front support body, and a bearing seat fastening screw hole is provided on one side of the bottom of the bearing seat. The bearing seat fastening screw passes through the bottom of the front support body and is screwed into the bearing seat fastening screw hole. The front support body connector is fixedly installed on the top of the front support body by the front support body fastening screw.

6. The online self-aligning rotary bearing device for ultra-precision super-precision of the outer ring raceway of a coated bearing according to claim 1, characterized in that: The support plate is fitted with a support plate fastening screw. The support plate limiting assembly includes a support plate limiting block, which is located on the side of the support plate away from the curved groove. A positioning conical pin and a limiting block fastening screw are fitted onto the support plate limiting block. The support plate limiting block is threaded with a support plate limiting screw in the horizontal direction, and the front end of the support plate limiting screw abuts against a carbide support point. The support plate limiting block is threaded with a first support head fastening screw in the vertical direction, and the lower end of the first support head fastening screw abuts against the middle of the support plate limiting screw.

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