CN115847272A - Continuous cylindrical roller force rheological polishing device and method - Google Patents
Continuous cylindrical roller force rheological polishing device and method Download PDFInfo
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- CN115847272A CN115847272A CN202211654897.0A CN202211654897A CN115847272A CN 115847272 A CN115847272 A CN 115847272A CN 202211654897 A CN202211654897 A CN 202211654897A CN 115847272 A CN115847272 A CN 115847272A
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Abstract
The invention belongs to the field of ultra-precision machining, and particularly relates to a continuous cylindrical roller force rheological polishing device and a continuous cylindrical roller force rheological polishing method. The invention has the characteristics of high automation degree, high efficiency, good effect, environmental protection and the like.
Description
Technical Field
The invention belongs to the field of ultra-precision machining, and particularly relates to a continuous cylindrical roller force rheological polishing device and method.
Background
The high-end roller bearing is a core basic part of national defense and civil high-end equipment, and has the characteristics of high precision, high reliability, high-speed and heavy-load working condition tolerance and the like. The high-performance rolling bearing mainly comprises an inner ring, an outer ring, a retainer and a rolling body, wherein the roller paths of the inner ring and the outer ring and the retainer belong to groove surfaces, and the surface of the rolling body belongs to a spherical surface or an arc surface. With the development of science and technology, the requirements on the service of the bearing such as stability and reliability are higher and higher, and the common failure modes of the bearing comprise abrasion and plastic deformation, which are mainly caused by the reasons of high surface roughness of parts, low shape precision of a rolling body and the like. The cylindrical roller is used as a core element of the cylindrical roller bearing, and the bearing performance index is 60-70% dependent on the manufacturing precision of the cylindrical roller. Therefore, it is necessary to develop a new ultra-precision machining technology to realize high-precision machining of a complex curved surface of a high-performance rolling bearing. However, the high-end roller bearings for civil high-end equipment in China almost all depend on import, and the development of the high-end equipment in China is severely restricted. Therefore, high end roller bearing manufacturing has entered into significant national development strategies.
The ultra-precise polishing is the last process of the final processing of key parts of high-end equipment, the geometric precision and the shape error of the parts are directly determined, and the ultra-precise polishing result has a vital influence on the quality and the service life of a product. At present, the technology for processing and developing the cylindrical roller mainly comprises an industrial mainstream traditional processing method of centerless grinding and centerless ultra-lapping and non-traditional processing methods such as centering reciprocating ultra-lapping, magnetorheological polishing and the like, and the following technologies are briefly introduced:
1) And (4) centerless grinding. Centerless grinding is a precision machining technology for the excircle of shaft parts. Different from a centering processing mode such as turning, the centerless grinding uses the outer circle of a workpiece as a positioning reference for processing, and processing equipment mainly comprises a grinding wheel, a guide wheel, a supporting plate and the like. The guide wheel drives the cylindrical roller to rotate, and meanwhile, the grinding wheel grinds the cylindrical roller. The supporting plate mainly plays a role in fixing the cylindrical roller. The workpiece is supported by a supporting plate and a guide wheel and is ground by a grinding wheel, and the centerless grinding machine is a grinding machine which does not need to use the axis of the workpiece and consists of the grinding wheel, an adjusting wheel and a workpiece frame. The upper surface of the supporting plate is inclined by 30-50 degrees, so that the workpiece is tightly pressed on the guide wheel by cutting force, the axis of the guide wheel has an inclined angle alpha (1-5 degrees) relative to the axis of the grinding wheel, the grinding wheel mainly comprises a grinding wheel, an adjusting wheel and a workpiece frame, wherein the grinding wheel actually performs grinding work, and the adjusting wheel controls the rotation of the workpiece and the feeding speed of the workpiece. During the processing, the surface of the roller is easy to have defects such as spiral lines, vibration lines, irregular scratches and the like. At present, a centerless cylindrical grinding method is generally adopted for cylindrical rollers, but the surface quality with high precision and high consistency is difficult to obtain.
2) Performing centerless ultra-fine grinding. Ultra lapping is a process in which the vibration of an abrasive causes grinding of a workpiece. The knife has a high speed during this process to remove excess material when contacting the rotating workpiece. The method inherits the advantage of high production efficiency of a centerless grinding method, is mainly used for greatly improving the surface quality and the shape precision of the outer circle surface of a workpiece, can realize micro-convexity forming and is usually used as a final process for processing a cylindrical roller. The centreless super fine grinding device comprises two guide rollers with the same shape and size and a spiral groove, an oilstone and a pressurizing device. In the processing process, the two guide rollers rotate at the same speed and in the same direction, and the cylindrical rollers rotate under the driving of the guide rollers. Meanwhile, the spiral groove of the guide roller drives the workpiece to move axially, and the oilstone above the workpiece is contacted with the cylindrical roller, so that trace removal is realized under certain pressure. At present, the efficiency of centerless ultra-fine grinding processing needs to be improved. And the installation precision (the distance and the inclination angle of the guide roller axis) of the guide roller has great influence on the processing effect, and has higher requirement on equipment.
3) Centering, reciprocating and ultra-fine grinding. The centering reciprocating ultra-lapping is a method for processing a cylindrical roller by replacing a turning tool of a traditional lathe with oilstone and adding an ultrasonic vibration auxiliary device and a precise loading control device. In the processing process, an axial ultrasonic vibration is applied to the oilstone, and the oilstone can reciprocate along the oscillation track under the action of the ultrasonic vibration. The cylindrical roller reciprocates along the rotation of the axis, and a certain force is applied between the oilstone and the cylindrical roller through the precise loading device, so that the material is removed. In order to improve the processing quality, the oilstone can be replaced by materials such as abrasive belts, polyurethane polishing pads and the like. The removal rate of the centering reciprocating ultra-fine grinding material is low, and only a single workpiece can be machined at one time, so that the machining efficiency is low. And the centering reciprocating super-fine grinding equipment is complex, the reciprocating motion of the oilstone and the ultrasonic vibration frequency have great influence on the roundness of the surface of the workpiece, and the production cost is high.
In conclusion, the centerless grinding is difficult to obtain high-precision and high-consistency surface quality, the centerless ultra-fine grinding efficiency needs to be improved, and the requirement on the precision of equipment is high. The efficiency of the centering reciprocating superfinishing is lower. And the centering reciprocating ultra-fine grinding equipment is complex and has high production cost. Therefore, it is urgently needed to develop a polishing technology for cylindrical rollers, which has high automation degree, high efficiency, good effect, and environmental protection.
Disclosure of Invention
The traditional curved surface ultra-precision machining technology is limited by a pure mechanical removal principle, the contact pressure needs to reach the plastic yield limit of a material during removal, the minimum removal thickness is limited, the surface integrity is difficult to further improve, various forms of damage are inevitably generated under the action of thermal coupling, and the thermal deterioration layer on the surface of a workpiece is thicker. In order to solve the problems, the invention provides a continuous cylindrical roller force rheological polishing device which is simple in structure, high in automation degree and high in efficiency. Correspondingly, the invention also provides a method for performing force rheological polishing on the cylindrical roller by using the continuous cylindrical roller force rheological polishing device, and the method has the advantages of good effect and environmental protection.
A continuous cylindrical roller force rheology polishing device comprises a cylindrical roller feeding module, a carrying ring module, a polishing groove module and a cylindrical roller blanking module;
the cylindrical roller feeding module is used for bearing cylindrical rollers and conveying the cylindrical rollers to the carrying ring module one by one;
the loading ring module comprises a loading ring, a friction wheel, a loading ring rotating motor and a friction wheel rotating motor, wherein the loading ring is driven to rotate by the loading ring rotating motor, a plurality of loading grooves for loading cylindrical rollers are uniformly distributed on the outer wall of the loading ring in a surrounding manner, the friction wheel is arranged in the loading ring, is driven to rotate by the friction wheel rotating motor and can drive the cylindrical rollers in the loading ring to rotate by friction;
the polishing groove module is positioned at the lower end of the object carrying ring module and comprises a polishing groove for storing polishing liquid, a polishing conveyor belt arranged in the polishing groove and a conveyor belt motor for driving the polishing conveyor belt to operate, and the polishing conveyor belt polishes the cylindrical roller through the polishing liquid;
the cylindrical roller blanking module is used for dismounting the cylindrical roller from the carrying ring.
Further, the cylindrical roller feeding module comprises a feeding air gun for blowing the cylindrical roller into the loading slot of the carrier ring.
Furthermore, cylindrical roller feeding module still includes slip table and feeding position sensor, the slip table is used for bearing cylindrical roller, and it has the feedstock channel that the slope set up, feeding position sensor is used for monitoring and carries whether to have the loading groove vacancy to come out by the thing ring.
Furthermore, the outer side and the inner side of the loading groove of the loading ring are provided with openings for exposing the side surfaces of the cylindrical rollers.
Further, the cylindrical roller blanking module comprises a discharging air gun, and the discharging air gun is used for blowing the cylindrical roller out of the carrying ring.
Further, cylindrical roller unloading module still includes timer, ejection of compact distance sensor and cylindrical roller and collects the frame, the timer is used for timing, ejection of compact distance sensor is used for monitoring whether there is cylindrical roller in carrying the loading groove of thing ring, cylindrical roller collects the frame and is used for collecting the cylindrical roller that is blown out by ejection of compact air gun.
The invention also provides a continuous cylindrical roller force rheological polishing method, which is realized by adopting the device and comprises the following steps:
step 1, loading a cylindrical roller on a carrying ring through a cylindrical roller feeding module to realize feeding;
and 3, unloading the cylindrical roller in the carrying ring through the cylindrical roller unloading module after polishing to realize unloading.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1) The polishing automation degree is high. The cylindrical rollers are controlled to automatically and circularly feed and discharge through position signals, and efficient polishing of the cylindrical rollers is achieved. The automatic polishing machine for the cylindrical rollers does not need manual participation, can achieve high-efficiency and high-surface-quality polishing of a whole batch of cylindrical rollers after a certain time of polishing through automatic detection, information processing, analysis judgment and operation control according to requirements, and achieves an expected target. The invention can not only liberate people from heavy physical labor, partial mental labor and bad and dangerous working environment, but also expand the functions of human organs and greatly improve the labor productivity.
2) The polishing efficiency is high. The cylindrical roller workpiece and the polishing solution move relatively, the polishing solution in contact with the workpiece is subjected to a shearing action to generate a shearing thickening phenomenon, the viscosity of the polishing solution in the area is increased sharply to form particle clusters, the holding force on abrasive particles is enhanced, a micro-cutting action is generated on the surface of the workpiece, the shearing thickening phenomenon has selectivity on the removal of the surface material of the workpiece, the micro-convex peaks on the surface of the workpiece can be removed preferentially, the surface material of the workpiece can reach a smooth state quickly, the efficiency is high, the surface quality is good, and the surface material is removed efficiently. The device can realize continuous polishing of the cylindrical roller, does not need manual operation, greatly improves the processing efficiency and reduces the cost.
3) And (3) ultraprecise processing of the curved surface of the cylindrical roller. The cylindrical roller workpiece and the polishing liquid do relative motion, the polishing liquid in contact with the workpiece is subjected to shearing action to generate a shearing thickening phenomenon, the viscosity of the polishing liquid in the region is increased rapidly to form particle clusters, the holding force on the abrasive particles is enhanced, a flexible 'fixed grinding tool' is formed, and the adhesion degree of the flexible 'fixed grinding tool' to the curved surface of the cylindrical roller is good. The flexible 'fixed abrasive tool' has a micro-cutting effect on the surface of a workpiece, and curved surface materials are efficiently removed to obtain a smooth surface. The force rheological property of the polishing solution ensures that the formed flexible fixed grinding tool can adapt to curved surfaces with different curvatures, and also ensures that the polishing solution has enough mechanical force to carry out micro-cutting on micro-convex peaks on the surfaces, thereby realizing the ultra-precise processing of the curved surfaces of the cylindrical rollers.
4) Is green and environment-friendly. The materials used in the polishing process are all environment-friendly materials, and the polishing solution is green and pollution-free, reduces pollution discharge, and accords with the green environmental protection concept. The mechanical rheological polishing liquid is water-based polishing liquid, mainly comprises water, polyhydroxy polymer and abrasive particles, and has no pollution to the environment and low cost. The processing equipment is simple, the addition of other auxiliary fields such as chemistry, electrochemistry, ultrasound and the like is not needed, the equipment cost is low, and the reliability is high.
Drawings
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic structural view of embodiment 1 with the frame removed;
FIG. 3 is a schematic cross-sectional structure of the embodiment;
FIG. 4 is a schematic view showing the structure of a cylindrical roller feed module in example 1;
FIG. 5 is a schematic view showing the structure of a carrier ring module according to embodiment 1;
FIG. 6 is a schematic view showing the structure of a polishing receptacle module according to example 1;
FIG. 7 is a schematic view showing the structure of a cylindrical roller blanking module in example 1;
FIG. 8 is a schematic diagram showing the mechanism of the polishing process in example 1;
FIG. 9 is a flowchart of example 2.
In the figure: cylindrical roller feeding module 1, slip table 11, feeding position sensor 12, feeding air gun 13, carry thing ring module 2, carry thing ring 21, loading groove 211, carry thing ring rotating electrical machines 22, friction pulley rotating electrical machines 23, friction pulley 24, polishing groove module 3, polishing groove 31, polishing solution 32, polishing conveyer belt 33, conveyer belt motor 34, cylindrical roller unloading module 4, time-recorder 41, ejection of compact distance sensor 42, ejection of compact air gun 43, cylindrical roller collection frame 44, frame 5.
Detailed Description
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
The invention will be further explained with reference to the drawings.
Example 1
Referring to fig. 1-8, a continuous cylindrical roller force rheology polishing device comprises a cylindrical roller feeding module 1, a carrying ring module 2, a polishing groove module 3, a cylindrical roller blanking module 4 and a frame 5. Cylindrical roller feeding module 1 is in year thing ring module 2 left side the place ahead, uses the bolt fastening at 5 longmen left side fronts in the frame. The carrier ring module 3 is fixed in the middle of the gantry 5 by using a bearing. The polishing groove module 3 is arranged right below the object carrying ring module 3 and is fixed on the base of the frame 5 by bolts. Cylindrical roller unloading module 4 is in year thing ring module 2 right front, uses the bolt fastening at frame longmen left rear.
With continued reference to fig. 4, the cylindrical roller feeding module 1 includes a slide table 11, a feeding position sensor 12, and a feeding air gun 13. The sliding table 11 is fixed on a gantry 5 of the frame by using a bolt and is concentrically arranged with one of the stations of the object carrying ring module 2, a feeding channel which is obliquely arranged is arranged on the sliding table 11, and the cylindrical roller slides down by means of self weight. The feeding position sensor 12 is arranged on the left side of the sliding table 11, and the feeding air gun 13 is fixed on the gantry of the frame 5, is arranged concentrically with the sliding table 11 and is positioned right in front of the sliding table 11.
With continued reference to fig. 5, carrier ring module 2 includes carrier ring 21, friction wheel 24, carrier ring drive motor 22, and friction wheel drive motor 23. The object carrying ring 21 is connected to the middle of the gantry of the frame 5 through a bearing, a plurality of loading grooves 211 are uniformly distributed on the outer wall of the object carrying ring, each loading groove 211 corresponds to one cylindrical roller station, the loading grooves 211 are used for loading cylindrical rollers, and the inner side and the outer side of each loading groove are both provided with openings, so that the cylindrical rollers can be in contact with the outside conveniently. The object carrying ring driving motor 22 is fixed in the middle of the gantry of the frame 5 by a bolt and is connected with the object carrying ring 21 by a key slot. The friction wheel driving motor 23 is fixed on the gantry of the frame 5 by bolts and is connected with the friction wheel 24 by a key slot. The carrying ring driving motor 22 and the friction wheel driving motor 23 are stepping motors, and the stepping motors are low in price, convenient to control and simple to debug. The friction wheel 24 is located in the middle of the carrier ring 21, and can rotate to drive the cylindrical rollers on the carrier ring 21 to rotate through friction.
With continued reference to fig. 3 and 6, the polishing receptacle module 3 includes a polishing receptacle 31, a polishing belt 33, and a belt motor 34. The polishing tank 31 is located under the object carrying ring module 2, fixed on the base of the frame 5 by using bolts, and internally stores polishing liquid 32. Two ends of a polishing conveyor belt 34 are fixed in the middle of the polishing groove 31 through a driving roller and a driven roller, and a conveyor belt motor 34 is fixed on the base of the frame 5 and is connected with the driving roller of the conveyor belt 34 through a key groove. The conveyor belt motor 34 adopts a stepping motor, the price of the stepping motor is lower, the control is convenient, and the debugging is simple.
With continued reference to fig. 7, the cylindrical roller blanking module 4 includes a timer 41, an outfeed distance sensor 42, an outfeed air gun 43, and a cylindrical roller collection frame 44. The cylindrical roller collecting frame 44 is fixed on the base of the frame 5, the discharging air gun 43 is positioned at the left rear part of the object carrying ring module 2 and fixed on the gantry of the frame 5, and the discharging distance sensor 42 is positioned at the left side of the discharging air gun.
Example 2
Referring to fig. 9, a continuous cylindrical roller mechanical rheological polishing method implemented by the apparatus of embodiment 1 includes the following steps:
step 1, loading the cylindrical roller on the carrying ring 21 through the cylindrical roller feeding module 1 to realize feeding.
Specifically, when the cylindrical roller feeding module 1 detects a vacant station through the feeding position sensor 12, the feeding air gun 13 blows unpolished cylindrical rollers into the carrier ring module station.
Specifically, the carrier ring module 2 has two motors of rotation and revolution, i.e., a carrier ring rotating motor 22 and a friction wheel rotating motor 23. The cylindrical roller can achieve that every position of the cylindrical surface is uniformly polished under the driving of the friction wheel rotating motor 23. The carrier ring rotating motor 22 realizes the polishing function of a plurality of cylindrical rollers at the same time.
The polishing conveyor belt 33 of the polishing tank module 3 drives the dynamic rheological polishing liquid 32 to move, so that the high-speed relative movement between the dynamic rheological polishing liquid 32 and the cylindrical roller workpiece generates a dynamic rheological effect, and the formed flexible fixed abrasive tool contacts with the micro-convex peak on the surface of the polishing workpiece. The mechanical rheological polishing has selectivity, can remove the surface micro-convex peak preferentially, and has high polishing efficiency. And the polishing agent has good laminating effect on curved surface materials of the cylindrical roller and good polishing effect. Meanwhile, the mechanical rheological polishing solution 32 is a water-based solution, has large specific heat capacity and can effectively inhibit the influence of heat.
And 3, unloading the cylindrical roller in the carrying ring 21 through the cylindrical roller unloading module 4 after polishing is finished, so as to realize unloading.
Specifically, the cylindrical roller blanking module 4 is started after the time set by the timer 41 is reached, the polished cylindrical roller is blown out through the detection of the discharging distance sensor 42, and then the step 1 is repeated.
In the example, the cylindrical roller was polished under the processing conditions shown in table 1, and after the above processing was carried out for 20min, the material removal rate reached 10mg/h, the surface roughness Ra reached 5nm, and the surface of the cylindrical roller was almost free of scratches, thereby achieving a mirror surface effect.
TABLE 1
| Workpiece | Cylindrical roller |
| Revolution speed of carrying ring | 100rpm |
| Polishing liquid conveyer belt speed | 1m/s |
| Speed of rotation of workpiece | 10rpm |
| Abrasive grain | #3000 aluminum oxide |
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A continuous cylindrical roller force rheology polishing device is characterized by comprising a cylindrical roller feeding module (1), a carrying ring module (2), a polishing groove module (3) and a cylindrical roller blanking module (4);
the cylindrical roller feeding module (1) is used for bearing cylindrical rollers and conveying the cylindrical rollers to the carrying ring module (2) one by one;
the carrying ring module (2) comprises a carrying ring (21), a friction wheel (24), a carrying ring rotating motor (22) and a friction wheel rotating motor (23), the carrying ring (21) is driven to rotate by the carrying ring rotating motor (22), a plurality of carrying grooves (211) used for carrying cylindrical rollers are uniformly distributed on the outer wall of the carrying ring in a surrounding manner, the friction wheel (24) is arranged in the carrying ring (21) and driven to rotate by the friction wheel rotating motor (23), and the cylindrical rollers in the carrying ring (21) can be driven to rotate through friction;
the polishing trough module (3) is positioned at the lower end of the carrying ring module (2) and comprises a polishing trough (31) storing polishing liquid (32), a polishing conveyor belt (33) arranged in the polishing trough (31) and a conveyor belt motor (34) for driving the polishing conveyor belt (33) to operate, and the polishing conveyor belt (33) polishes the cylindrical roller through the polishing liquid (32);
the cylindrical roller blanking module (4) is used for dismounting the cylindrical roller from the carrying ring (21).
2. The continuous cylindrical roller dynamic rheological polishing device of claim 1, wherein the cylindrical roller feeding module (1) comprises a feeding air gun (13), and the feeding air gun (13) is used for blowing the cylindrical roller into the loading groove (211) of the loading ring (21).
3. The continuous cylindrical roller force rheological polishing device according to claim 2, wherein the cylindrical roller feeding module (1) further comprises a sliding table (11) and a feeding position sensor (12), the sliding table (11) is used for bearing the cylindrical roller and is provided with a feeding channel which is obliquely arranged, and the feeding position sensor (12) is used for monitoring whether the loading groove (211) is vacant or not in the loading ring (21).
4. The continuous cylindrical roller dynamic rheological polishing device of claim 1, wherein the loading groove (211) of the loading ring (21) is provided with openings for exposing the side surfaces of the cylindrical rollers at the outer side and the inner side.
5. The continuous cylindrical roller force rheology polishing device according to claim 1 characterized in that the cylindrical roller blanking module (4) comprises an air discharge gun (43), the air discharge gun (43) is used to blow the cylindrical roller out of the carrier ring (21).
6. The continuous cylindrical roller force rheology polishing device according to claim 5, characterized in that the cylindrical roller blanking module (4) further comprises a timer (41), a discharge distance sensor (42) and a cylindrical roller collection frame (44), wherein the timer (41) is used for timing, the discharge distance sensor (42) is used for monitoring whether a cylindrical roller exists in the loading groove (211) of the carrier ring (21), and the cylindrical roller collection frame (44) is used for collecting the cylindrical roller blown out by the discharge air gun (43).
7. A continuous cylindrical roller force rheological polishing method is characterized by comprising the following steps:
step 1, loading a cylindrical roller on a carrying ring (21) through a cylindrical roller feeding module (1) to realize feeding;
step 2, the object carrying ring (21) is driven to rotate by the object carrying ring driving motor (22), the friction wheel (24) is driven to rotate by the friction wheel driving motor (23), the polishing conveyor belt (33) is driven to operate by the conveyor belt motor (34), the object carrying ring (21) drives the cylindrical rollers on the object carrying ring to revolve, the cylindrical rollers on the object carrying ring (21) rotate by the friction wheel (24) through friction, and the polishing conveyor belt (33) polishes the cylindrical rollers through polishing liquid;
and 3, unloading the cylindrical roller in the carrying ring (21) through the cylindrical roller unloading module (4) after polishing is finished, so as to realize unloading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211654897.0A CN115847272A (en) | 2022-12-22 | 2022-12-22 | Continuous cylindrical roller force rheological polishing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211654897.0A CN115847272A (en) | 2022-12-22 | 2022-12-22 | Continuous cylindrical roller force rheological polishing device and method |
Publications (1)
| Publication Number | Publication Date |
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| CN115847272A true CN115847272A (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211654897.0A Pending CN115847272A (en) | 2022-12-22 | 2022-12-22 | Continuous cylindrical roller force rheological polishing device and method |
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| CN (1) | CN115847272A (en) |
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2022
- 2022-12-22 CN CN202211654897.0A patent/CN115847272A/en active Pending
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