CN110355616B - Magnetorheological polishing processing device for artificial knee joint tibial tray - Google Patents
Magnetorheological polishing processing device for artificial knee joint tibial tray Download PDFInfo
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- CN110355616B CN110355616B CN201910648599.2A CN201910648599A CN110355616B CN 110355616 B CN110355616 B CN 110355616B CN 201910648599 A CN201910648599 A CN 201910648599A CN 110355616 B CN110355616 B CN 110355616B
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- gear
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- artificial knee
- star wheel
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- 238000005498 polishing Methods 0.000 title claims abstract description 46
- 210000000629 knee joint Anatomy 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 210000002303 tibia Anatomy 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 abstract description 7
- 230000006978 adaptation Effects 0.000 abstract description 3
- 230000005389 magnetism Effects 0.000 abstract description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000007943 implant Substances 0.000 description 7
- 239000004575 stone Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000002082 fibula Anatomy 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 210000004417 patella Anatomy 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/005—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes using a magnetic polishing agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Prostheses (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a magnetorheological polishing device for an artificial knee joint tibial tray, wherein an upper grinding disc is detachably fixed on a rack, an internal gear is rotatably arranged on the rack, a sun wheel and at least one wandering star wheel which are positioned on the same horizontal plane are arranged in the internal gear, the internal gear is meshed with the wandering star wheel, the wandering star wheel is meshed with the sun wheel, a plurality of placing holes for preventing polishing pieces to be processed are formed in the wandering star wheel, magnetorheological polishing liquid is filled between the upper grinding disc and the wandering star wheel, and a coil is fixed on the upper grinding disc. The invention has the advantages that: through setting up the wandering star wheel, be located between sun gear and the internal gear, can also the autobiography when revolution, make magnetic current become polishing solution through the coil and trun into solid state form, polish placing the artificial knee joint shin bone support on the wandering star wheel, because magnetic current becomes liquid form before receiving the magnetic field, the shape of adaptation artificial knee joint shin bone support that can be fine, and become solid state form after receiving the magnetism, the effectual polishing precision that has improved.
Description
Technical Field
The invention relates to a magnetorheological polishing processing device for an artificial knee joint tibial tray.
Background
Joint damage caused by joint pathological changes or accidents caused by human diseases destroys the normal functions of human joints, and brings great inconvenience to the life and work of patients. The artificial joint replacement can effectively reconstruct joint functions, restore mobility and improve life quality, so that the medical requirements of the artificial joint are increasing day by day. The human knee joint is composed of a femur, a tibia, a fibula and a patella. The natural joint substitute material has good biocompatibility and stability, high strength, high ductility and toughness, high fatigue performance, excellent corrosion resistance and excellent wear resistance. Titanium alloys have good corrosion resistance and biocompatibility, and have been widely used in implants in the biomedical field. The titanium alloy implant material has the main problems of corrosion, and on one hand, corrosion products enter a human body due to corrosion, so that serious physiological hazards such as tissue poisoning, cell distortion and the like are caused; on the other hand, the failure behaviors of loosening, early fracture and the like of the implanted prosthesis are caused. The corrosion resistance of titanium alloy implants decreases with increasing surface roughness, with smooth and micro-rough surfaces having good corrosion resistance and low ion release rates. Therefore, it is necessary to perform proper surface finishing treatment on the medical titanium alloy implant.
Because titanium alloy has poor cutting performance and very easy oxidation of the surface, at present, precision forging, vacuum precision casting, cold (hot) heading and the like are generally adopted at home and abroad for forming processing, and chemical polishing, mechanical polishing, electrolytic polishing and other methods are adopted for surface finishing processing. However, since the titanium alloy implant has more burrs and a thicker oxide film after being processed, the titanium alloy implant is implanted into a human body as an artificial joint, and the surface roughness of the material is higher, so that thrombus is easily formed. Therefore, higher demands are made on the smooth surface and the micro-rough surface of the medical titanium alloy implant.
Disclosure of Invention
The invention aims to provide a magnetorheological polishing processing device for an artificial knee joint tibial tray, which can effectively solve the problem that the surface roughness of the existing artificial knee joint tibial tray cannot meet the requirement.
In order to solve the technical problems, the invention is realized by the following technical scheme: the utility model provides an artifical knee joint shin bone support is with magnetic current becomes polishing processingequipment, includes frame, runner stone, coil, magnetic current becomes polishing solution, internal gear, outer tray, inner tray, sun gear and wandering star wheel, the runner stone can be dismantled and fix in the frame, the internal gear rotates and sets up in the frame, be equipped with the sun gear and at least one wandering star wheel that are located same horizontal plane in the internal gear, internal gear and wandering star wheel meshing, wandering star wheel and sun gear meshing, it has a plurality of holes of placing that prevent to treat the processing polishing piece to open on the wandering star wheel, the magnetic current becomes polishing solution and fills between runner stone and the wandering star wheel, the coil is fixed on the runner stone.
Preferably, the internal gear includes interior wheel body and teeth of a cogwheel, interior wheel body is equipped with open-topped inner chamber, the teeth of a cogwheel is fixed on the inner chamber lateral wall, the bottom center of interior wheel body is equipped with the first shaft of keeping away from interior wheel body direction extension.
Preferably, an outer tray extending towards the center of the inner wheel body is further fixed on the side wall of the inner cavity below the gear teeth and used for lifting the wandering star wheel.
Preferably, a collecting box for collecting the magnetorheological polishing fluid is arranged in the inner cavity of the inner wheel body.
Preferably, a cylindrical hollow pillar is arranged in the middle of the collecting box, a second wheel shaft extending downwards is arranged in the center of the sun wheel, and the second wheel shaft is connected with the hollow pillar through a bearing.
Preferably, the bottom of the sun wheel is provided with an inner tray which extends outwards along the radial direction and is used for lifting the wandering star wheel.
Preferably, the collecting box is provided with an inclined plane with gradually reduced height from the center to the periphery, the lowest point of the inclined plane is provided with a liquid drainage hole, the liquid drainage hole penetrates through the bottom of the inner wheel body, and a liquid drainage plug is arranged in the liquid drainage hole.
Preferably, the placing hole is matched with the shape of the artificial knee joint tibia support to be processed.
Compared with the prior art, the invention has the advantages that:
through setting up the wandering star wheel, be located between sun gear and the internal gear, can also the autobiography when revolution, make magnetic current become polishing solution through the coil and trun into solid state form, polish placing the artificial knee joint shin bone support on the wandering star wheel, because magnetic current becomes liquid form before receiving the magnetic field, the shape of adaptation artificial knee joint shin bone support that can be fine, and become solid state form after receiving the magnetism, the effectual polishing precision that has improved.
The internal gear comprises an inner gear body and gear teeth, the inner gear body is provided with an inner cavity with an opening at the top, the gear teeth are fixed on the side wall of the inner cavity, and the center of the bottom of the inner gear body is provided with a first wheel shaft extending away from the direction of the inner gear body. Besides being used as gear transmission, the inner wheel body with the inner cavity top opening can also be used for placing a sun wheel, a planetary wheel and the like therein for protection.
And an outer tray extending to the center of the inner wheel body is fixed on the side wall of the inner cavity below the gear teeth and used for lifting the wandering star wheel. Through outer tray, lift the wandering star wheel, keep the stability of wandering star wheel.
And a collecting box for collecting magnetorheological polishing solution is arranged in the inner cavity of the inner wheel body. And collecting the falling magnetorheological polishing solution through the collecting box for recycling.
The middle part of the collecting box is provided with a cylindrical hollow pillar, the center of the sun gear is provided with a second wheel shaft extending downwards, and the second wheel shaft is connected with the hollow pillar through a bearing. The hollow strut is matched with the second wheel shaft to support the sun wheel, so that the sun wheel can rotate along the axis of the sun wheel.
The bottom of the sun wheel is provided with an inner tray which extends outwards along the radial direction and is used for lifting the wandering star wheel. And the other side of the wandering star wheel is lifted through the inner tray.
The collecting box is provided with an inclined plane with gradually reduced height from the center to the periphery, the lowest point of the inclined plane is provided with a liquid drainage hole, the liquid drainage hole penetrates through the bottom of the inner wheel body, and a liquid drainage plug is arranged in the liquid drainage hole. The inclined plane is arranged to better collect the collected magnetorheological polishing solution together, and then the magnetorheological polishing solution is discharged through the liquid discharge hole to be convenient for collection.
The placing hole is matched with the appearance of the artificial knee joint tibia support to be processed. Better fix the artificial knee joint tibial tray.
Drawings
FIG. 1 is a schematic structural view of a magnetorheological polishing device for an artificial knee joint tibial tray according to the present invention;
fig. 2 is a plan view of the combination of the inner gear, the planetary gear, and the sun gear according to the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and 2, an embodiment of a magnetorheological polishing device for an artificial knee joint tibial tray of the invention comprises a frame, an upper grinding disc 1, a coil 2, magnetorheological polishing liquid 3, an internal gear 4, an outer tray 5, an inner tray 6, a sun gear 9 and a wandering star wheel 10, wherein the upper grinding disc 1 is detachably fixed on the frame, the detachable mode can adopt a bolt fixing mode, the internal gear 4 is rotatably arranged on the frame, the internal gear 4 is internally provided with a sun gear 9 and at least one wandering star wheel 10 which are positioned on the same horizontal plane, the internal gear 4 is meshed with the wandering star wheel 10, the wandering star wheel 10 is meshed with the sun gear 9, the wandering star wheel 10 is provided with a plurality of placing holes 12 for preventing polishing pieces 100 to be processed, the placing holes 12 are matched with the appearance of the artificial knee joint tibial tray to be processed, the magnetorheological polishing liquid 3 is filled between the upper grinding disc 1 and the wandering star wheel 10, and the coil 2 is fixed on the upper grinding disc 1.
Further, the internal gear 4 includes an internal gear body 41 and gear teeth 42, the internal gear body 41 is provided with an inner cavity 43 with an open top, the gear teeth 42 are fixed on a side wall of the inner cavity 43, a first wheel shaft 44 extending away from the internal gear body 41 is provided at the bottom center of the internal gear body 41, the first wheel shaft 44 can be connected with a motor for transmission, and the first wheel shaft 44 can be rotatably disposed on the frame.
In order to better fix the wandering star wheel 10 and prevent the wandering star wheel from falling into the inner cavity 43, the outer tray 5 extending towards the center of the inner wheel body 41 is further fixed on the side wall of the inner cavity 43 below the wheel teeth 42 and used for supporting the wandering star wheel 10, and further, the inner tray 6 extending outwards along the radial direction is arranged at the bottom of the sun wheel 9 and used for supporting the wandering star wheel 10. The sun gear 9 at this time is rotatably connected to the hollow strut 81 through a bearing 7, specifically, a collecting box 8 for collecting the magnetorheological polishing fluid 3 is arranged in the inner cavity 43 of the inner gear body 41, the hollow strut 81 in a cylindrical shape is arranged in the middle of the collecting box 8, a second wheel shaft 91 extending downward is arranged in the center of the sun gear 9, and the second wheel shaft 91 is connected to the hollow strut 81 through the bearing 7.
In order to collect the magnetorheological polishing fluid 3 collected, the collection box 8 is provided with an inclined plane 82 with gradually decreasing height from the center to the periphery, the lowest point of the inclined plane 82 is provided with a liquid drainage hole, the liquid drainage hole penetrates through the bottom of the inner wheel body 41, and a liquid drainage plug 13 is arranged in the liquid drainage hole.
The working process is as follows: polishing piece 100 is medical artificial knee joint shin bone and holds in the palm, place a plurality of placing holes 12 that wandering star wheel 10 set up in, pour into liquid magnetic current becomes polishing solution 3 into, 2 circular telegrams of coil, go up mill 1 and produce magnetic field, liquid magnetic current becomes type solid chain form magnetic current becomes the brush for polishing solution 3, start internal gear 4, drive wandering star wheel 10 rotation and revolution, the setting is at the same time the revolution of polishing piece 100 rotation in wandering star wheel 10 placing holes 12, it is motionless in the frame that go up mill 1 is fixed this moment, magnetic current becomes the brush and can polish polishing piece 100. After the processing is finished, the coil 2 is powered off, and the bracket collecting box 8 collects the liquid magnetorheological polishing solution 3 for recycling.
Through setting up the wandering star wheel 10, be located between sun gear 9 and the internal gear 4, can also the autobiography when revolution, make magnetic current change polishing solution 3 trun into solid state form through coil 2, polish placing the artificial knee joint shin bone support on wandering star wheel 10, because magnetic current change polishing solution 3 is liquid form before receiving the magnetic field, the shape of adaptation artificial knee joint shin bone support that can be fine, and become solid state form after receiving the magnetism, the effectual polishing precision that has improved.
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
Claims (5)
1. The utility model provides an artificial knee joint shin bone holds in palm with magnetic current becomes polishing processingequipment which characterized in that: the magnetorheological polishing fluid polishing device comprises a rack, an upper grinding disc (1), a coil (2), magnetorheological polishing fluid (3), an internal gear (4), a sun gear (9) and a planetary gear (10), wherein the upper grinding disc (1) is detachably fixed on the rack, the internal gear (4) is rotatably arranged on the rack, the sun gear (9) and at least one planetary gear (10) which are positioned on the same horizontal plane are arranged in the internal gear (4), the internal gear (4) is meshed with the planetary gear (10), the planetary gear (10) is meshed with the sun gear (9), a plurality of placing holes (12) for placing polishing pieces to be processed are formed in the planetary gear (10), the magnetorheological polishing fluid (3) is filled between the upper grinding disc (1) and the planetary gear (10), and the coil (2) is fixed on the upper grinding disc (1);
the inner gear (4) comprises an inner gear body (41) and gear teeth (42), the inner gear body (41) is provided with an inner cavity (43) with an opening at the top, the gear teeth (42) are fixed on the side wall of the inner cavity (43), and the center of the bottom of the inner gear body (41) is provided with a first wheel shaft (44) extending away from the inner gear body (41) in the direction;
a collecting box (8) for collecting the magnetorheological polishing fluid (3) is arranged in the inner cavity (43) of the inner wheel body (41);
the middle part of the collecting box (8) is provided with a cylindrical hollow strut (81), the center of the sun gear (9) is provided with a second wheel shaft (91) extending downwards, and the second wheel shaft (91) is connected with the hollow strut (81) through a bearing (7).
2. The magnetorheological finishing device for the artificial knee joint tibial tray of claim 1, wherein: and an outer tray (5) extending towards the center of the inner wheel body (41) is further fixed on the side wall of the inner cavity (43) below the gear teeth (42) and used for lifting the wandering star wheel (10).
3. The magnetorheological finishing device for the artificial knee joint tibial tray of claim 1, wherein: the bottom of the sun wheel (9) is provided with an inner tray (6) which extends outwards along the radial direction and is used for lifting the planetary wheel (10).
4. The magnetorheological finishing device for the artificial knee joint tibial tray of claim 1, wherein: the collecting box (8) is provided with an inclined plane (82) with gradually reduced height from the center to the periphery, the lowest point of the inclined plane (82) is provided with a liquid drainage hole, the liquid drainage hole penetrates through the bottom of the inner wheel body (41), and a liquid drainage plug (13) is arranged in the liquid drainage hole.
5. The magnetorheological finishing device for the artificial knee joint tibial tray of claim 1, wherein: the placing hole (12) is matched with the shape of the artificial knee joint tibia support to be processed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648599.2A CN110355616B (en) | 2019-07-18 | 2019-07-18 | Magnetorheological polishing processing device for artificial knee joint tibial tray |
| PCT/CN2020/073336 WO2021008130A1 (en) | 2019-07-18 | 2020-01-20 | Magnetorheological finishing apparatus for artificial knee joint tibial support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648599.2A CN110355616B (en) | 2019-07-18 | 2019-07-18 | Magnetorheological polishing processing device for artificial knee joint tibial tray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110355616A CN110355616A (en) | 2019-10-22 |
| CN110355616B true CN110355616B (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910648599.2A Active CN110355616B (en) | 2019-07-18 | 2019-07-18 | Magnetorheological polishing processing device for artificial knee joint tibial tray |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110355616B (en) |
| WO (1) | WO2021008130A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110355616B (en) * | 2019-07-18 | 2021-01-26 | 浙江科惠医疗器械股份有限公司 | Magnetorheological polishing processing device for artificial knee joint tibial tray |
| CN117300748B (en) * | 2023-11-30 | 2024-02-06 | 内蒙古工业大学 | Alternating magnetic field magnetic grinding device |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001155331A (en) * | 1999-11-30 | 2001-06-08 | Mitsubishi Alum Co Ltd | Magnetic disk substrate and its grinding method |
| US6709981B2 (en) * | 2000-08-16 | 2004-03-23 | Memc Electronic Materials, Inc. | Method and apparatus for processing a semiconductor wafer using novel final polishing method |
| KR100891176B1 (en) * | 2007-07-20 | 2009-04-01 | 중앙대학교 산학협력단 | Multi wheel type polishing device using magneto-rheological fluid |
| CN101579833B (en) * | 2009-06-05 | 2011-08-31 | 东华大学 | High efficiency controllable multiple wheel head magnetic rheology polishing device |
| CN203527154U (en) * | 2013-09-28 | 2014-04-09 | 浙江科惠医疗器械有限公司 | Ultrasonic magneto-rheological polishing combination machine for small medical titanium alloy workpiece |
| CN104209862B (en) * | 2014-08-26 | 2017-01-11 | 广东工业大学 | Ultra-smooth plane grinding polishing device and method for online trimming flexible polishing pad |
| CN105458839B (en) * | 2015-08-17 | 2017-11-17 | 宇环数控机床股份有限公司 | A kind of magnetic rheological polishing method and device |
| CN204935268U (en) * | 2015-08-17 | 2016-01-06 | 宇环数控机床股份有限公司 | A kind of workpiece multiple degrees of freedom driving mechanism of MRF equipment |
| CN108262678B (en) * | 2016-12-30 | 2021-01-01 | 上海新昇半导体科技有限公司 | Silicon wafer grinding device and grinding method thereof |
| CN107378651A (en) * | 2017-08-04 | 2017-11-24 | 北京交通大学 | A kind of magnetorheological plane polishing device |
| CN107877269B (en) * | 2017-10-26 | 2023-10-03 | 广东工业大学 | Device and method for efficiently polishing and processing high-precision balls through cluster magneto-rheological technology |
| CN108550535B (en) * | 2018-04-03 | 2020-09-18 | 游精学 | Machine tool for processing surface of wafer |
| CN110355616B (en) * | 2019-07-18 | 2021-01-26 | 浙江科惠医疗器械股份有限公司 | Magnetorheological polishing processing device for artificial knee joint tibial tray |
-
2019
- 2019-07-18 CN CN201910648599.2A patent/CN110355616B/en active Active
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2020
- 2020-01-20 WO PCT/CN2020/073336 patent/WO2021008130A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN110355616A (en) | 2019-10-22 |
| WO2021008130A1 (en) | 2021-01-21 |
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Denomination of invention: A Magnetorheological Polishing Device for Tibial Bracket of Artificial Knee Joint Effective date of registration: 20221205 Granted publication date: 20210126 Pledgee: Industrial and Commercial Bank of China Limited Jinhua Branch Pledgor: CANWELL MEDICAL Co.,Ltd. Registration number: Y2022330003493 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231205 Granted publication date: 20210126 Pledgee: Industrial and Commercial Bank of China Limited Jinhua Branch Pledgor: CANWELL MEDICAL Co.,Ltd. Registration number: Y2022330003493 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A magnetorheological polishing device for artificial knee joint tibial support Granted publication date: 20210126 Pledgee: Industrial and Commercial Bank of China Limited Jinhua Branch Pledgor: CANWELL MEDICAL Co.,Ltd. Registration number: Y2024980000673 |