CN111687696A - Flexible polishing head based on magnetorheological elastomer - Google Patents
Flexible polishing head based on magnetorheological elastomer Download PDFInfo
- Publication number
- CN111687696A CN111687696A CN202010726216.1A CN202010726216A CN111687696A CN 111687696 A CN111687696 A CN 111687696A CN 202010726216 A CN202010726216 A CN 202010726216A CN 111687696 A CN111687696 A CN 111687696A
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- Prior art keywords
- framework
- electromagnetic coil
- magnetorheological elastomer
- bracket
- sleeve
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- 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.)
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 47
- 239000000806 elastomer Substances 0.000 title claims abstract description 47
- 238000005498 polishing Methods 0.000 title claims abstract description 33
- 230000005389 magnetism Effects 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- B24B41/002—Grinding heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a flexible polishing head based on a magnetorheological elastomer, which comprises a connecting shaft, a bracket, a first lead, a second framework, a second electromagnetic coil, a second magnetism isolating sleeve, a support cover, the magnetorheological elastomer, abrasive particles, a pressure sensor, a first magnetism isolating sleeve, a first electromagnetic coil, a first framework, a cover plate, a magnetic conductive iron core, a sleeve, a second lead and a controller. The connecting shaft is arranged at the top end of the bracket; the sleeve is arranged at the bottom of the connecting shaft; the second framework is arranged in the outer ring of the bottom end of the bracket, and the cover plate is arranged at the upper part of the second framework; the first framework is arranged in the inner ring at the bottom of the framework, and the magnetic conductive iron core is arranged at the upper part of the first framework; the support cover is connected with the bracket by threads; the magnetorheological elastomer is arranged between the bottom of the bracket and the support cover; the abrasive particles are embedded in the magnetorheological elastomer; the controller is arranged in the sleeve, and a first lead and a second lead which are connected with the output end of the controller are respectively connected to the first electromagnetic coil and the second electromagnetic coil; the first electromagnetic coil and the second electromagnetic coil are respectively arranged in the first framework and the second framework, and the outer sides of the first electromagnetic coil and the second electromagnetic coil are respectively wrapped by the first magnetism isolating sleeve and the second magnetism isolating sleeve; the pressure sensor is arranged in the magnetorheological elastomer.
Description
Technical Field
The invention relates to a polishing tool, in particular to a flexible polishing head based on a magnetorheological elastomer.
Background
Polishing is seen everywhere in the mechanical industry, the polishing modes generally comprise manual polishing, mechanical polishing, vibratory polishing, barrel polishing and electrochemical polishing, most polishing modes adopt rigid polishing heads, the polishing of complex curved surfaces is difficult, and the effect of the finished product is poor. Other modes have complex polishing process and high technical requirement on operators, and can also generate harmful effects of waste gas and water, environmental pollution and the like. Therefore, the invention designs the flexible polishing head based on the magnetorheological elastomer by controlling the rigidity characteristic of the magnetorheological elastomer through the magnetic field.
Disclosure of Invention
The invention aims to provide a flexible polishing head based on a magnetorheological elastomer, and aims to solve the problem of uneven polishing surface.
In order to effectively solve the above problems, the present invention is implemented as follows: the device comprises a connecting shaft 1, a support 2, a first lead 3, a second framework 4, a second electromagnetic coil 5, a second magnetism-isolating sleeve 6, a support cover 7, a magnetorheological elastomer 8, abrasive particles 81, a pressure sensor 9, a first magnetism-isolating sleeve 10, a first electromagnetic coil 11, a first framework 12, a cover plate 13, a magnetic conductive iron core 14, a sleeve 15, a second lead 16 and a controller 17. The connecting shaft 1 is arranged at the top end of the bracket 2; the sleeve 15 is arranged at the bottom of the connecting shaft 1; the second framework 4 is arranged in the outer ring at the bottom of the bracket 2, and the cover plate 13 is arranged at the upper part of the second framework; the first framework 12 is arranged in the inner ring at the bottom of the bracket 2, and the magnetic conductive iron core 14 is arranged at the upper part of the first framework; the support cover 7 is in threaded connection with the bracket 2; the magnetorheological elastomer 8 is arranged between the bottom of the bracket 2 and the support cover 7; the abrasive particles 81 are embedded in the magnetorheological elastomer 8; the controller 17 is arranged in the sleeve, and the first lead 3 and the second lead 16 connected with the output end of the controller are respectively connected with the first electromagnetic coil 11 and the second electromagnetic coil 5; the first electromagnetic coil 11 and the second electromagnetic coil 5 are respectively arranged inside the first framework 12 and the second framework 4, and the outer sides of the first electromagnetic coil and the second electromagnetic coil are respectively wrapped by the first magnetism isolating sleeve 10 and the second magnetism isolating sleeve 5; the pressure sensor 9 is arranged inside the magnetorheological elastomer 8.
The bracket 2 and the support cover 7 are made of magnetic conductive materials.
The bottom of the magnetorheological elastomer 8 is embedded with abrasive particles 81, so that the surface grinding force is increased, and the polishing efficiency is improved.
The pressure sensors 9 are distributed between the inner part of the magnetorheological elastomer 8 and the bottom of the bracket 2 in an array form.
The invention discloses a flexible polishing head based on a magnetorheological elastomer, which has the positive effects that: by changing the current, the magnetic field is continuously controllable, the rigidity change of the magnetorheological elastomer is controllable, the higher the magnetic field intensity is, the higher the rigidity is, the larger the grinding force generated by abrasive particles embedded at the bottom of the magnetorheological elastomer is, and the polishing efficiency is improved. Meanwhile, the magnetorheological elastomer is used as a flexible material, and can meet the processing requirement of complex curved surfaces. Therefore, the invention utilizes the magnetic field to control the rigidity characteristic of the magnetorheological elastomer, and finishes polishing with higher quality and higher efficiency.
Drawings
FIG. 1 is a schematic diagram of an internal structure of a flexible polishing head based on a magnetorheological elastomer;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure: 1. the magnetic field generator comprises a connecting shaft, a bracket 2, a first lead 3, a second framework 4, a second electromagnetic coil 5, a second magnetic isolation sleeve 6, a support cover 7, a magnetorheological elastomer 8, abrasive particles 81, a pressure sensor 9, a first magnetic isolation sleeve 10, a first electromagnetic coil 11, a first framework 12, a cover plate 13, a magnetic conductive iron core 14, a sleeve 15, a second lead 16 and a controller 17.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In fig. 1, the flexible polishing head based on the magnetorheological elastomer mainly comprises a connecting shaft 1, a bracket 2, a first lead 3, a second framework 4, a second electromagnetic coil 5, a second magnetism isolating sleeve 6, a supporting cover 7, the magnetorheological elastomer 8, abrasive particles 81, a pressure sensor 9, a first magnetism isolating sleeve 10, a first electromagnetic coil 11, a first framework 12, a cover plate 13, a magnetic conductive iron core 14, a sleeve 15, a second lead 16 and a controller 17. The connecting shaft 1 is arranged at the top end of the bracket 2; the sleeve 15 is arranged at the bottom of the connecting shaft 1; the second framework 4 is arranged in the outer ring at the bottom of the bracket 2, and the cover plate 13 is arranged at the upper part of the second framework; the first framework 12 is arranged in the inner ring at the bottom of the bracket 2, and the magnetic conductive iron core 14 is arranged at the upper part of the first framework; the support cover 7 is in threaded connection with the bracket 2; the magnetorheological elastomer 8 is arranged between the bottom of the bracket 2 and the support cover 7; the abrasive particles 81 are embedded in the magnetorheological elastomer 8; the controller 17 is arranged in the sleeve, and the first lead 3 and the second lead 16 connected with the output end of the controller are respectively connected with the first electromagnetic coil 11 and the second electromagnetic coil 5; the first electromagnetic coil 11 and the second electromagnetic coil 5 are respectively arranged inside the first framework 12 and the second framework 4, and the outer sides of the first electromagnetic coil and the second electromagnetic coil are respectively wrapped by the first magnetism isolating sleeve 10 and the second magnetism isolating sleeve 5; the pressure sensor 9 is arranged inside the magnetorheological elastomer 8.
The bracket 2 and the support cover 7 are made of magnetic conductive materials.
The bottom of the magnetorheological elastomer 8 is embedded with abrasive particles 81, so that the surface grinding force is increased, and the polishing efficiency is improved.
The pressure sensors 9 are distributed between the inner part of the magnetorheological elastomer 8 and the bottom of the bracket 2 in an array form.
The working principle of the flexible polishing head based on the magnetorheological elastomer is as follows: the connecting shaft 1 is first connected to a polishing machine, so that the present invention makes a rotary motion. In the polishing process, when the magnetorheological elastomer 8 is in contact with a processing surface, a pressure sensor 9 outputs a feedback polishing pressure signal to a controller 17, the controller 17 receives the signal and outputs current to a first lead 3 and a second lead 16, a first electromagnetic coil 11 and a second electromagnetic coil 5 which are connected with the first lead 3 and the second lead 16 generate a controllable gradient magnetic field, the rigidity of the magnetorheological elastomer 8 is changed along with the change of the magnetic field intensity, the higher the magnetic field intensity is, the higher the rigidity is, and the larger the grinding force generated by abrasive particles 81 embedded in the bottom of the magnetorheological elastomer is. The magnetorheological elastomer is used as a flexible material, and can be tangent to the surface of a target workpiece when various workpieces with complex curved surfaces are polished, so that the magnetorheological elastomer is suitable for processing various complex curved surfaces.
Claims (4)
1. The utility model provides a flexible polishing head based on magnetic current becomes elastomer, the device comprises connecting axle (1), support (2), wire (3), No. two skeletons (4), No. two solenoid (5), No. two magnetism spacer (6), hold in the palm lid (7), magnetic current becomes elastomer (8), grit (81), pressure sensor (9), No. one magnetism spacer (10), solenoid (11), skeleton (12), apron (13), magnetic core (14), sleeve (15), No. two wires (16), controller (17). The connecting shaft (1) is arranged at the top end of the bracket (2); the sleeve (15) is arranged at the bottom of the connecting shaft (1); the second framework (4) is arranged in the outer ring of the bottom of the bracket (2), and the cover plate (13) is arranged at the upper part of the second framework; the first framework (12) is arranged in the inner ring at the bottom of the bracket (2), and the magnetic conductive iron core (14) is arranged at the upper part of the first framework; the support cover (7) is in threaded connection with the bracket (2); the magnetorheological elastomer (8) is arranged between the bottom of the bracket (2) and the support cover (7); the abrasive particles (81) are embedded in the magnetorheological elastomer (8); the controller (17) is arranged in the sleeve, and a first lead (3) and a second lead (16) which are connected with the output end of the controller are respectively connected with the first electromagnetic coil (11) and the second electromagnetic coil (5); the first electromagnetic coil (11) and the second electromagnetic coil (5) are respectively arranged in the first framework (12) and the second framework (4), and the outer sides of the first electromagnetic coil and the second electromagnetic coil are respectively wrapped by the first magnetism isolating sleeve (10) and the second magnetism isolating sleeve (5); the pressure sensor (9) is arranged inside the magnetorheological elastomer (8).
2. A flexible polishing head based on a magnetorheological elastomer, according to claim 1, wherein: the bracket (2) and the support cover (7) are made of magnetic conductive materials.
3. A flexible polishing head based on a magnetorheological elastomer, according to claim 1, wherein: abrasive particles (81) are embedded at the bottom of the magnetorheological elastomer (8), so that the surface grinding force is increased, and the polishing efficiency is improved.
4. A flexible polishing head based on a magnetorheological elastomer, according to claim 1, wherein: the pressure sensors (9) are distributed between the inner part of the magnetorheological elastomer (8) and the bottom of the bracket (2) in an array form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726216.1A CN111687696A (en) | 2020-07-25 | 2020-07-25 | Flexible polishing head based on magnetorheological elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010726216.1A CN111687696A (en) | 2020-07-25 | 2020-07-25 | Flexible polishing head based on magnetorheological elastomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111687696A true CN111687696A (en) | 2020-09-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010726216.1A Pending CN111687696A (en) | 2020-07-25 | 2020-07-25 | Flexible polishing head based on magnetorheological elastomer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111687696A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0784163A1 (en) * | 1996-01-11 | 1997-07-16 | Ford Motor Company Limited | Variable stiffness bushing using magnetorheological elastomers |
| CN1486821A (en) * | 2003-08-22 | 2004-04-07 | 清华大学 | Magnetic rheologic polishing head in electromagnetic mode |
| CN1948781A (en) * | 2005-10-15 | 2007-04-18 | 中国科学技术大学 | Magnetic flowing deformation elastomer frequency shift type attenuator and control method |
| CN102773795A (en) * | 2012-08-07 | 2012-11-14 | 中国科学院长春光学精密机械与物理研究所 | Electromagnetic excitation adaptive grinding head based on magneto-rheological fluid |
| CN103447890A (en) * | 2013-08-21 | 2013-12-18 | 黑龙江科技大学 | Magnetorheological elastomer-based polishing method and magnetorheological elastomer-based polishing device |
| CN103465112A (en) * | 2013-09-03 | 2013-12-25 | 黑龙江科技大学 | Magnetorheological colloid or magnetorheological foam material based flexible polishing method and device |
| CN104097142A (en) * | 2014-06-24 | 2014-10-15 | 北京理工大学 | Electrically controlled magnetic field flexible ballonet fluid-filled polishing device |
| CN104191318A (en) * | 2014-09-01 | 2014-12-10 | 浙江师范大学 | Magneto-rheological polishing method and tool |
| CN107253101A (en) * | 2017-08-04 | 2017-10-17 | 南京理工大学 | Water-base magnetic rheology closed type flexible rubbing head based on normal force |
| CN107387651A (en) * | 2017-07-18 | 2017-11-24 | 福州大学 | A kind of variation rigidity MR damper and its control method |
| CN107932349A (en) * | 2017-12-01 | 2018-04-20 | 湘潭大学 | A kind of magnetic rheology elastic body emery wheel and preparation method thereof |
| CN108311961A (en) * | 2018-04-25 | 2018-07-24 | 东北大学 | A kind of circulation static pressure type magnetorheological finishing device |
| CN212444367U (en) * | 2020-07-25 | 2021-02-02 | 浙江师范大学 | Flexible polishing head based on magnetorheological elastomer |
-
2020
- 2020-07-25 CN CN202010726216.1A patent/CN111687696A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0784163A1 (en) * | 1996-01-11 | 1997-07-16 | Ford Motor Company Limited | Variable stiffness bushing using magnetorheological elastomers |
| CN1486821A (en) * | 2003-08-22 | 2004-04-07 | 清华大学 | Magnetic rheologic polishing head in electromagnetic mode |
| CN1948781A (en) * | 2005-10-15 | 2007-04-18 | 中国科学技术大学 | Magnetic flowing deformation elastomer frequency shift type attenuator and control method |
| CN102773795A (en) * | 2012-08-07 | 2012-11-14 | 中国科学院长春光学精密机械与物理研究所 | Electromagnetic excitation adaptive grinding head based on magneto-rheological fluid |
| CN103447890A (en) * | 2013-08-21 | 2013-12-18 | 黑龙江科技大学 | Magnetorheological elastomer-based polishing method and magnetorheological elastomer-based polishing device |
| CN103465112A (en) * | 2013-09-03 | 2013-12-25 | 黑龙江科技大学 | Magnetorheological colloid or magnetorheological foam material based flexible polishing method and device |
| CN104097142A (en) * | 2014-06-24 | 2014-10-15 | 北京理工大学 | Electrically controlled magnetic field flexible ballonet fluid-filled polishing device |
| CN104191318A (en) * | 2014-09-01 | 2014-12-10 | 浙江师范大学 | Magneto-rheological polishing method and tool |
| CN107387651A (en) * | 2017-07-18 | 2017-11-24 | 福州大学 | A kind of variation rigidity MR damper and its control method |
| CN107253101A (en) * | 2017-08-04 | 2017-10-17 | 南京理工大学 | Water-base magnetic rheology closed type flexible rubbing head based on normal force |
| CN107932349A (en) * | 2017-12-01 | 2018-04-20 | 湘潭大学 | A kind of magnetic rheology elastic body emery wheel and preparation method thereof |
| CN108311961A (en) * | 2018-04-25 | 2018-07-24 | 东北大学 | A kind of circulation static pressure type magnetorheological finishing device |
| CN212444367U (en) * | 2020-07-25 | 2021-02-02 | 浙江师范大学 | Flexible polishing head based on magnetorheological elastomer |
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