CN114211404A - Magnetic jet polishing machine for medical bone grafting forming plate - Google Patents
Magnetic jet polishing machine for medical bone grafting forming plate Download PDFInfo
- Publication number
- CN114211404A CN114211404A CN202111471573.9A CN202111471573A CN114211404A CN 114211404 A CN114211404 A CN 114211404A CN 202111471573 A CN202111471573 A CN 202111471573A CN 114211404 A CN114211404 A CN 114211404A
- Authority
- CN
- China
- Prior art keywords
- inlet pipe
- magnetorheological
- liquid inlet
- polishing
- magnetic field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 103
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 97
- 239000012530 fluid Substances 0.000 claims 3
- 238000007493 shaping process Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007494 plate polishing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C11/00—Selection of abrasive materials or additives for abrasive blasts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/08—Devices for generating abrasive blasts non-mechanically, e.g. of metallic abrasives by means of a magnetic field or by detonating cords
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a magnetic jet polishing machine for a medical bone grafting forming plate, which comprises a liquid storage device, a liquid inlet pipe, a magnetorheological accelerator, a rotating magnetic field mechanism and a nozzle, wherein the liquid storage device, the nozzle and the liquid inlet pipe are sleeved with the magnetorheological accelerator; the surface to be polished of the medical bone grafting forming plate is vertical to the direction of the magnetorheological polishing solution sprayed by the nozzle; the rotating magnetic field mechanism comprises a rotating magnetic field controller and a plurality of rotating electromagnetic coils, the rotating electromagnetic coils are fixed on the outer side wall of the liquid inlet pipe and are arranged along a spiral line, and the rotating magnetic field controller controls all the rotating electromagnetic coils to work. The magnetorheological polishing solution is accelerated in a pulse mode to form a magnetorheological polishing bullet, the pressure of the magnetorheological polishing solution in contact with the medical bone grafting forming plate is increased, and therefore polishing efficiency is improved.
Description
Technical Field
The invention relates to a magnetic jet polishing machine for a medical bone grafting forming plate.
Background
The polishing of pipes and objects with complex structures by using the magnetorheological polishing liquid is a common means, but the existing polishing equipment adopting the principle uses a water pump as a flow driving element of the magnetorheological polishing liquid, but the constant flow rate can only enable the magnetorheological polishing liquid to flow through the polishing equipment along a straight line at a constant speed to polish workpieces, and the polishing mode is single and the polishing efficiency is low.
Disclosure of Invention
The invention aims to provide a magnetic jet polishing machine for a medical bone grafting forming plate, which can effectively solve the problems of single polishing form and low efficiency of the existing medical bone grafting forming plate polishing machine.
In order to solve the technical problems, the invention is realized by the following technical scheme: the magnetic jet polishing machine is used for a medical bone grafting forming plate and used for polishing the medical bone grafting forming plate and comprises a liquid storage device, a liquid inlet pipe, a magnetorheological accelerator, a rotating magnetic field mechanism and a nozzle, wherein the liquid storage device is connected with one end of the liquid inlet pipe, the nozzle is fixed at the other end of the liquid inlet pipe, the magnetorheological accelerator is sleeved in the middle of the liquid inlet pipe, the rotating magnetic field mechanism is arranged on the liquid inlet pipe beside the nozzle and used for enabling a magnetorheological polishing liquid flowing through the liquid inlet pipe to rotate circumferentially relative to the liquid inlet pipe, and the liquid storage device is filled with the magnetorheological polishing liquid; the surface to be polished of the medical bone grafting forming plate is vertical to the direction of the magnetorheological polishing solution sprayed out from the nozzle; the rotating magnetic field mechanism comprises a rotating magnetic field controller and a plurality of rotating electromagnetic coils, the rotating electromagnetic coils are fixed on the outer side wall of the liquid inlet pipe and are arranged along a spiral line, and the rotating magnetic field controller controls all the rotating electromagnetic coils to work.
Preferably, the rotary electromagnetic coils are arranged on the outer side wall of the liquid inlet pipe along a double helix line, and the double helix line structure can further improve the circumferential rotation speed of the magnetorheological polishing liquid, so that a better polishing effect is realized.
Preferably, the magnetorheological accelerator comprises a driving coil controller and at least one stage of accelerating coil, the accelerating coil is sleeved on the liquid inlet pipe, the direction of magnetic force lines of a magnetic field generated by the accelerating coil is parallel to the flowing direction of the magnetorheological polishing liquid, the driving coil controller controls all the accelerating coils to work, continuous pulse magnetic traveling waves are generated by excitation of the at least one stage of accelerating coil to drive the magnetorheological polishing liquid, and the continuous pulse magnetic traveling waves are driven by the continuous pulse magnetic traveling waves to move along the direction of the magnetic traveling waves of the magnetic field to polish the medical bone grafting forming plate.
Preferably, the accelerating coil has at least two stages, and is sleeved on the liquid inlet pipe in sequence along the axial direction of the liquid inlet pipe, so that a gradient magnetic field is formed better, and the polishing effect is enhanced.
Preferably, a pump is arranged on a liquid inlet pipe between the liquid storage device and the magnetorheological accelerator, and the initial speed of the magnetorheological polishing liquid is increased and the polishing effect is improved by adding the pump.
Compared with the prior art, the invention has the advantages that:
by adding the magnetorheological accelerator and the rotating magnetic field mechanism, the problems of single polishing and polishing form and low efficiency of the existing magnetorheological polishing are solved, pulse acceleration can be performed on the magnetorheological polishing solution through the magnetorheological accelerator, the magnetorheological polishing solution forms magnetorheological polishing bullets, the pressure of the magnetorheological polishing solution when the magnetorheological polishing solution is contacted with the medical bone grafting forming plate is increased, and therefore the polishing efficiency is improved. In addition, the device is additionally provided with a rotating magnetic field mechanism, so that the magnetorheological polishing liquid entering the liquid inlet pipe rotates, a circumferential rotating polishing mode is added on the basis of the original axial friction polishing, the polishing efficiency is further improved, and the mechanical precision of a product can be effectively improved. The rotary magnetic field controller is used for controlling the electromagnetic coils at different positions to work, the magnetorheological polishing liquid in the guide pipe body is guided to rotate, circumferential rotation is achieved, multi-dimensional polishing is conducted, the magnetorheological polishing liquid sprayed out from the nozzle vertically reaches the medical bone grafting forming plate, and the surface of the medical bone grafting forming plate and the surface of the fixing hole are polished.
Drawings
FIG. 1 is a schematic structural diagram of a magnetic jet polishing machine for a medical bone grafting shaping plate according to the invention;
FIG. 2 is a schematic diagram of the operation of the magnetorheological accelerator of the present invention.
Reference numerals:
the device comprises a liquid storage device 1, a liquid inlet pipe 2, a magnetorheological accelerator 3, a driving coil controller 31, an accelerating coil 32, a rotating magnetic field mechanism 4, a rotating magnetic field controller 41, a rotating electromagnetic coil 42, a nozzle 5, magnetorheological polishing liquid 6, a medical bone grafting forming plate 7, a pump 8 and magnetic lines of force 9.
Detailed Description
The magnetic jet polishing machine is used for a medical bone grafting forming plate and used for polishing the medical bone grafting forming plate and comprises a liquid storage device, a liquid inlet pipe, a magnetorheological accelerator, a rotating magnetic field mechanism and a nozzle, wherein the liquid storage device is connected with one end of the liquid inlet pipe, the nozzle is fixed at the other end of the liquid inlet pipe, the magnetorheological accelerator is sleeved in the middle of the liquid inlet pipe, the rotating magnetic field mechanism is arranged on the liquid inlet pipe beside the nozzle and used for enabling a magnetorheological polishing liquid flowing through the liquid inlet pipe to rotate circumferentially relative to the liquid inlet pipe, and the liquid storage device is filled with the magnetorheological polishing liquid; the surface to be polished of the medical bone grafting forming plate is vertical to the direction of the magnetorheological polishing solution sprayed out from the nozzle; the rotating magnetic field mechanism comprises a rotating magnetic field controller and a plurality of rotating electromagnetic coils, the rotating electromagnetic coils are fixed on the outer side wall of the liquid inlet pipe and are arranged along a spiral line, and the rotating magnetic field controller controls all the rotating electromagnetic coils to work. By adding the magnetorheological accelerator and the rotating magnetic field mechanism, the problems of single polishing and polishing form and low efficiency of the existing magnetorheological polishing are solved, pulse acceleration can be performed on the magnetorheological polishing solution through the magnetorheological accelerator, the magnetorheological polishing solution forms magnetorheological polishing bullets, the pressure of the magnetorheological polishing solution when the magnetorheological polishing solution is contacted with the medical bone grafting forming plate is increased, and therefore the polishing efficiency is improved. In addition, the device is additionally provided with a rotating magnetic field mechanism, so that the magnetorheological polishing liquid entering the liquid inlet pipe rotates, a circumferential rotating polishing mode is added on the basis of the original axial friction polishing, and the polishing efficiency is further improved. The rotary magnetic field controller is used for controlling the electromagnetic coils at different positions to work, the magnetorheological polishing liquid in the guide pipe body is guided to rotate, circumferential rotation is achieved, multi-dimensional polishing is conducted, the magnetorheological polishing liquid sprayed out from the nozzle vertically reaches the medical bone grafting forming plate, and the surface of the medical bone grafting forming plate and the surface of the fixing hole are polished.
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 the invention is an embodiment of a magnetic jet polishing machine for a medical bone grafting shaping plate 7, the magnetic jet polishing machine for the medical bone grafting shaping plate 7 comprises a liquid reservoir 1, a liquid inlet pipe 2, a magnetorheological accelerator 3, a rotating magnetic field mechanism 4 and a nozzle 5, the liquid reservoir 1 and the nozzle 5 are respectively and fixedly connected to two ends of the liquid inlet pipe 2, the liquid reservoir 1 contains magnetorheological polishing liquid 6, a pump 8 is arranged on the liquid inlet pipe 2 at the downstream of the liquid reservoir 1, the flow rate of the magnetorheological polishing liquid 6 in the liquid inlet pipe 2 is increased by the pump 8, the liquid inlet pipe 2 at the downstream of the pump 8 is provided with the magnetorheological accelerator 3, the magnetorheological polishing liquid 6 flowing through the liquid inlet pipe 2 is subjected to pulse acceleration to form a pulse bullet, the rotating magnetic field mechanism 4 is arranged on the liquid inlet pipe 2 at the downstream of the magnetorheological accelerator 3, and the magnetorheological polishing liquid 6 flowing through the rotating magnetic field mechanism 4 is rotated in the circumferential direction, the rotating pulse bullet is vertically shot to the medical bone grafting shaping plate 7 from the nozzle 5, and the medical bone grafting shaping plate 7 is polished.
The liquid inlet pipe 2 is provided with a magnetorheological accelerator, the flow speed of the magnetorheological polishing liquid 6 in the liquid inlet pipe 2 is improved through the magnetorheological accelerator, the magnetorheological accelerator comprises a driving coil controller 31 and two-stage accelerating coils 32, the two-stage accelerating coils 32 are sequentially sleeved on the liquid inlet pipe 2 along the axial direction of the liquid inlet pipe 2, the direction of magnetic lines 9 of a magnetic field generated by the accelerating coils 32 is parallel to the flowing direction of the magnetorheological polishing liquid 6, and the driving coil controller 31 controls all the accelerating coils 32 to work.
The rotating magnetic field mechanism 4 includes a rotating magnetic field controller 41 and a plurality of rotating electromagnetic coils 42, the rotating electromagnetic coils 42 are arranged on the outer side wall of the tube body in a double helix, and the rotating magnetic field controller 41 controls all the rotating electromagnetic coils 42 to work.
The magnetorheological polishing solution 6 is driven to perform pulse motion along the magnetic field traveling wave direction by sequentially exciting the multistage accelerating coils 32 to generate continuous pulse magnetic traveling waves, the continuous pulse magnetic traveling waves generated by sequentially exciting the multistage accelerating coils 32 are driven to perform high-speed motion by the relative first-stage accelerating coils 32 positioned at the upstream, the second-stage accelerating coils 32 positioned at the downstream are relatively arranged, if more stages of accelerating coils 32 are sequentially analogized, the continuous pulse magnetic traveling waves generated by sequentially exciting the multistage accelerating coils 32 are driven to perform high-speed motion by the magnetorheological polishing solution 6, after pulse exciting current is introduced into the first-stage accelerating coils 32, magnetic field magnetic traveling waves are generated in air gaps around the driving coils, the magnetorheological polishing solution 6 is attracted to perform accelerated motion under the action of magnetic force, and the power supply is disconnected when the magnetorheological polishing solution 6 runs to the middle of the first-stage accelerating coils 32, so that the magnetorheological polishing solution moves out of the first-stage accelerating coils 32 by means of inertia; then enters the second stage accelerating coil 32 to accelerate again, and a plurality of coils can be arranged to accelerate according to the requirement until the required speed is met.
The magnetorheological polishing solution 6 enters the liquid inlet pipe 2 from the liquid storage device 1, the flow rate is firstly improved through the pump 8, and then when the magnetorheological polishing solution passes through the position of the magnetorheological accelerator, the primary accelerating coil 32 is connected with pulse exciting current through the driving coil controller 31 to instantly generate a gradient magnetic field, magnetorheological particles in the magnetorheological polishing solution 6 move along the direction of a magnetic line of force 9 under the action of the magnetic field to form a magnetic chain, abrasive particles in the magnetorheological polishing solution 6 are clamped between the magnetic chain, the magnetorheological particles move towards the direction of high magnetic field intensity in the non-uniform magnetic field and are pushed to an area with low magnetic field intensity, and more abrasive particles are tightly pressed together to form a flexible grinding tool, so that the inner wall of the medical bone grafting forming plate 7 is polished more efficiently.
After the device is adopted, not only can pulse magneto-rheological polishing bullets be generated, but also the magneto-rheological polishing bullets can be influenced by the rotating magnetic field mechanism 4 and can rotate in the circumferential direction, so that the high-efficiency polishing of various polishing modes is realized.
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. A magnetic jet polishing machine for medical bone grafting forming plate is used for polishing medical bone grafting forming plate (7), and is characterized in that: the magnetorheological polishing fluid polishing device comprises a liquid storage device (1), a liquid inlet pipe (2), a magnetorheological accelerator (3), a rotating magnetic field mechanism (4) and a nozzle (5), wherein the liquid storage device (1) is connected with one end of the liquid inlet pipe (2), the nozzle (5) is fixed at the other end of the liquid inlet pipe (2), the magnetorheological accelerator (3) is sleeved at the middle part of the liquid inlet pipe (2), the rotating magnetic field mechanism (4) is arranged on the liquid inlet pipe (2) beside the nozzle (5) and is used for enabling magnetorheological polishing fluid (6) flowing through the liquid inlet pipe (2) to rotate relative to the liquid inlet pipe (2) along the circumferential direction, and magnetorheological polishing fluid (6) is filled in the liquid storage device (1); the surface to be polished of the medical bone grafting forming plate (7) is vertical to the direction of the magnetorheological polishing liquid (6) sprayed by the nozzle (5);
the rotating magnetic field mechanism (4) comprises a rotating magnetic field controller (41) and a plurality of rotating electromagnetic coils (42), the rotating electromagnetic coils (42) are fixed on the outer side wall of the liquid inlet pipe (2) and are arranged along a spiral line, and the rotating magnetic field controller (41) controls all the rotating electromagnetic coils (42) to work.
2. A magnetic jet polishing machine for a medical bone graft forming plate according to claim 1, wherein: the rotary electromagnetic coils (42) are arranged on the outer side wall of the liquid inlet pipe (2) along double spiral lines.
3. A magnetic jet polishing machine for a medical bone graft forming plate according to claim 1, wherein: the magnetorheological accelerator comprises a driving coil controller (31) and at least one stage of accelerating coil (32), wherein the accelerating coil (32) is sleeved on the liquid inlet pipe (2), the direction of magnetic force lines of a magnetic field generated by the accelerating coil (32) is parallel to the flowing direction of magnetorheological polishing liquid (6), and the driving coil controller (31) controls all the accelerating coils (32) to work.
4. A magnetic jet polishing machine for a medical bone graft forming plate according to claim 3, wherein: the accelerating coil (32) has at least two stages and is sequentially sleeved on the liquid inlet pipe (2) along the axial direction of the liquid inlet pipe (2).
5. A magnetic jet polishing machine for a medical bone graft forming plate according to claim 1, wherein: and a pump (8) is arranged on the liquid inlet pipe (2) between the liquid storage device (1) and the magnetorheological accelerator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111471573.9A CN114211404B (en) | 2021-11-25 | 2021-11-25 | Magnetic jet polishing machine for medical bone grafting forming plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111471573.9A CN114211404B (en) | 2021-11-25 | 2021-11-25 | Magnetic jet polishing machine for medical bone grafting forming plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114211404A true CN114211404A (en) | 2022-03-22 |
| CN114211404B CN114211404B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111471573.9A Active CN114211404B (en) | 2021-11-25 | 2021-11-25 | Magnetic jet polishing machine for medical bone grafting forming plate |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553343A (en) * | 2017-09-18 | 2018-01-09 | 安徽理工大学 | A kind of electromagnetism abrasive material slurry burnishing device |
| CN107671746A (en) * | 2017-10-09 | 2018-02-09 | 安徽理工大学 | Hybrid electromagnetic abradant jet generating means before a kind of compound new-type |
| CN110202420A (en) * | 2019-06-19 | 2019-09-06 | 华中科技大学 | A kind of magnetorheological finishing device and method for encouraging rotating excitation field based on electricity |
| CN111360589A (en) * | 2020-03-27 | 2020-07-03 | 台州学院 | Medical micro screw magneto-rheological polishing device |
| CN111390656A (en) * | 2020-03-27 | 2020-07-10 | 台州学院 | Magneto-rheological polishing machine for artificial knee joint tibial tray |
| CN212527384U (en) * | 2020-05-29 | 2021-02-12 | 清华大学 | Multidirectional adjustable processingequipment of magnetic jet bunch |
| CN214722806U (en) * | 2021-05-14 | 2021-11-16 | 长春长光大器科技有限公司 | Magnetorheological suspensions pulsation adjusting device |
-
2021
- 2021-11-25 CN CN202111471573.9A patent/CN114211404B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107553343A (en) * | 2017-09-18 | 2018-01-09 | 安徽理工大学 | A kind of electromagnetism abrasive material slurry burnishing device |
| CN107671746A (en) * | 2017-10-09 | 2018-02-09 | 安徽理工大学 | Hybrid electromagnetic abradant jet generating means before a kind of compound new-type |
| CN110202420A (en) * | 2019-06-19 | 2019-09-06 | 华中科技大学 | A kind of magnetorheological finishing device and method for encouraging rotating excitation field based on electricity |
| CN111360589A (en) * | 2020-03-27 | 2020-07-03 | 台州学院 | Medical micro screw magneto-rheological polishing device |
| CN111390656A (en) * | 2020-03-27 | 2020-07-10 | 台州学院 | Magneto-rheological polishing machine for artificial knee joint tibial tray |
| CN212527384U (en) * | 2020-05-29 | 2021-02-12 | 清华大学 | Multidirectional adjustable processingequipment of magnetic jet bunch |
| CN214722806U (en) * | 2021-05-14 | 2021-11-16 | 长春长光大器科技有限公司 | Magnetorheological suspensions pulsation adjusting device |
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| Publication number | Publication date |
|---|---|
| CN114211404B (en) | 2023-11-17 |
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