CN108788333B - Tapping auxiliary device based on magneto-rheological effect - Google Patents
Tapping auxiliary device based on magneto-rheological effect Download PDFInfo
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- CN108788333B CN108788333B CN201810640667.6A CN201810640667A CN108788333B CN 108788333 B CN108788333 B CN 108788333B CN 201810640667 A CN201810640667 A CN 201810640667A CN 108788333 B CN108788333 B CN 108788333B
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- piston
- magneto
- tap
- wrench
- rheological
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 23
- 230000000694 effects Effects 0.000 title claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 8
- 238000003860 storage Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 8
- 230000006698 induction Effects 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 229910000976 Electrical steel Inorganic materials 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000002441 reversible effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/26—Manually-operated thread-cutting devices
- B23G1/28—Manually-operated thread-cutting devices with means for adjusting the threading tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
- B23G1/48—Equipment or accessories specially designed for machines or devices for thread cutting for guiding the threading tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a tapping auxiliary device based on a magneto-rheological effect, which mainly comprises a tap wrench, a wrench fixing clamp, a cylindrical roller bearing, a piston, a cylindrical barrel, a base, a tap, an O-shaped sealing ring, a compression spring, a permanent magnet, magneto-rheological fluid, a coil storage barrel and an electromagnetic coil. The device realizes real-time sensing and self-correction of the tap posture under tapping working conditions by utilizing the electromagnetic induction principle of the electromagnetic coil and the permanent magnet and utilizing the reversible continuous rheological effect of the magnetorheological fluid, thereby greatly reducing the requirements on processing technology and experience and improving the processing efficiency and the thread processing quality.
Description
Technical Field
The invention relates to a simple tapping auxiliary device, in particular to a tapping auxiliary device based on a magneto-rheological effect.
Background
With the rapid development of industrial manufacturing technology in China, the threaded connection fastening mode is more and more widely used for important engineering such as machinery, electronics, aerospace and the like, and particularly for connection and matching of hole threads. At present, the preparation of hole threads mainly depends on manual work, namely manual tapping processing is carried out by adopting a screw tap, so that the processing quality directly influences the assembly precision and the working performance of the product. In addition, high-precision hole thread machining has higher requirements on the machining technology and experience of operators, particularly the machining and preparation of fine and precise hole threads, and the conditions of easy inclination, easy breakage and the like of a screw tap exist in the tapping process, so that the whole product is scrapped, the waste of raw materials, the production period and the increase of machining cost are caused, and the problem needs to be solved urgently. It is therefore highly desirable to provide a tapping aid that effectively monitors the tap's attitude in real time during tapping and self-corrects it to ensure the quality of the fine, precise hole threads being made.
Based on the problems, the novel tapping auxiliary device based on the magnetorheological effect is provided, and based on the magnetorheological fluid rheological effect and combined with an electromagnetic induction principle, the device can effectively detect the tap gesture in the working condition in real time, and can effectively self-adjust and correct in real time, so that the requirements on the processing experience are greatly reduced, and the processing efficiency and the processing quality are improved.
Disclosure of Invention
The invention provides a novel tapping auxiliary device according to a magneto-rheological effect, which aims to overcome the defects that a screw tap commonly existing in the current processing of fine and precise hole threads is easy to incline and break, has high requirements on operation experience and the like. The device utilizes the electromagnetic induction principle and combines the continuous reversible rheological effect of the magnetorheological fluid to realize the real-time sensing and self-correction of the tap state under tapping working conditions.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a tapping auxiliary device based on magneto rheological effect, this simple and easy device mainly has tap wrench (3), spanner fixation clamp (4), cylinder roller bearing (7), piston (6), cylinder (5), base (12), screw tap (10), O sealing washer (8), compression spring (11), permanent magnet (9), magneto rheological fluid (13), coil take-in barrel (2) and solenoid (1) constitution.
The tap wrench (3) is fixed on the wrench fixing clamp (4) to provide effective tapping turning moment.
The wrench fixing clamp (4) is a disc type, the upper end face of the wrench fixing clamp is provided with a groove for positioning and clamping the tap wrench (3), and the lower end of the wrench fixing clamp is in interference fit with the cylindrical roller bearing (7).
The cylindrical roller bearing (7) is in interference fit with the shaft shoulder of the piston (6).
The piston (6) is a revolution body, the upper end of the piston is provided with a shaft shoulder, the lower end of the piston is of a disc structure, and 4 circular grooves are formed for installing and fixing the permanent magnets (9); the wall surface of the lower disc is provided with 6 semicircular through holes which are used as flow channels of magnetorheological fluid (13).
The number of the compression springs (11) is 4, and two ends of the compression springs are respectively fixed on the disc and the base (12) of the piston (6) so as to provide upward restoring force for the piston (6).
One O-shaped sealing ring (8) is 2 and is respectively fixed in grooves of the cylinder (5) and the piston (6), so as to keep sealing on magnetorheological fluid (13) and prevent leakage in the working process.
The cylindrical barrel (5) and the base (12) are fixedly connected through threads.
The magnetorheological fluid (13) is filled in a closed space formed by the cylindrical barrel (5), the base (12), the piston (6) and the O-shaped sealing ring (8).
The coil storage cylinder (2) is fixed on the outer wall surface of the cylinder (5).
The electromagnetic coil (1) is wound in the coil accommodating cylinder (2).
The tapping auxiliary device has the beneficial effects that the acceleration generated when the tap tilts in the tapping process is detected by the electromagnetic induction principle of the electromagnetic coil and the permanent magnet, and the problems that the tilting of the tap is not easy to perceive and the like are effectively overcome by utilizing the reversible continuous rheological effect of the magnetorheological fluid; the device is based on the magneto-rheological effect, and the working principle is simple, and small and exquisite compactness of structure can effectively detect the operational gesture of screw tap in real time, prevents the screw tap fracture that causes because of the slope of screw tap, and then has guaranteed the processingquality of tiny accurate hole screw thread and the yields of product.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
FIG. 1 is an overall exterior view of the device of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an external view of the device of the present invention with the electromagnetic coil, coil housing and cylinder removed;
in the figure, the electromagnetic coil is 1, the coil receiving cylinder is 2, the tap wrench is 3, the wrench fixing clamp is 4, the motor frame is 5, the servo motor is 6, the cylindrical roller bearing is 7, the 8.O sealing ring is 9, the permanent magnet is 10, the tap is 11, the compression spring is 12, the base is 13, and the magnetorheological fluid is provided.
Detailed Description
The utility model provides a tapping auxiliary device based on magneto-rheological effect, this simple and easy device includes tap wrench (3), spanner fixation clamp (4), cylindrical roller bearing (7), piston (6), cylinder (5), base (12), screw tap (10), O sealing washer (8), compression spring (11), permanent magnet (9), magneto-rheological fluid (13), coil receiving section of thick bamboo (2) and solenoid (1). The tap wrench (3) is fixed on the wrench fixing clamp (4) to provide effective tapping turning moment. The wrench fixing clamp (4) is a disc type, the upper end face of the wrench fixing clamp is provided with a groove for positioning and clamping the tap wrench (3), and the lower end of the wrench fixing clamp is in interference fit with the cylindrical roller bearing (7). The cylindrical roller bearing (7) is in interference fit with the shaft shoulder of the piston (6). The piston (6) is a revolution body, the upper end of the piston is provided with a shaft shoulder, the lower end of the piston is of a disc structure, and 4 circular grooves are formed for installing and fixing the permanent magnets (9); the wall surface of the lower disc is provided with 6 semicircular through holes which are used as flow channels of magnetorheological fluid (13). The number of the compression springs (11) is 4, and two ends of the compression springs are respectively fixed on the disc and the base (12) of the piston (6) so as to provide upward restoring force for the piston (6). One O-shaped sealing ring (8) is 2, and the O-shaped sealing ring is respectively fixed in grooves of the sub-cylinder (5) and the piston (6) to keep sealing of magnetorheological fluid (13) and prevent leakage in the working process. The cylindrical barrel (5) and the base (12) are fixedly connected through threads. The magnetorheological fluid (13) is filled in a closed space formed by the cylindrical barrel (5), the base (12), the piston (6) and the O-shaped sealing ring (8). The coil storage cylinder (2) is fixed on the outer wall surface of the cylinder (5). The electromagnetic coil (1) is wound in the coil accommodating cylinder (2).
The specific working principle and implementation process of the device are as follows: the magnetic field for controlling the rheological property of the magnetorheological fluid (13) in the device is mainly generated by electromagnetic induction, namely, the permanent magnet (9) arranged and fixed on the piston (6) cuts the electromagnetic coil (1) to enable the electromagnetic coil (1) to generate induction current, thereby forming a strong magnetic field. Compared with the weak magnetic field of the permanent magnet (9), the induced magnetic field has the advantages of large magnetic field intensity, uniform distribution and the like, and can completely regulate and control the rheological property of the magnetorheological fluid (13). When the rotation moment acts on the tap wrench (3) in a balanced way, the tap (10) always keeps a vertical processing posture; the electromagnetic coil (1) cannot induce a magnetic field, and the magnetorheological fluid (13) still keeps good flowing performance, so that the screw tap (10) can smoothly machine threads downwards. When the rotation moment acted on the tap wrench (3) is unbalanced, the piston (6) and the tap (10) incline simultaneously, and due to electromagnetic induction effect, the acceleration generated when the piston (6) inclines causes the permanent magnet (9) to rapidly cut the electromagnetic coil (1) downwards, so that the electromagnetic coil (1) instantaneously generates strong induction current, and a strong magnetic field is generated. Based on the rheological effect of the magnetorheological fluid (13), the magnetorheological fluid (13) is instantaneously changed from a liquid state to a solid-like state under the action of a magnetic field, so that the piston (6) is prevented from being further inclined. When the tilting motion of the piston (6) tends to be static under the action of the magnetorheological fluid (13), namely the piston (6) has no tilting acceleration, the permanent magnet (9) has no rapid cutting action relative to the electromagnetic coil (1), so the electromagnetic coil (1) has no induction current and induction magnetic field, the magnetorheological fluid (13) is restored to a liquid state from a solid-like state, and good flow performance is maintained. At the moment, the inclined piston (6) is restored to balance under the action of the elastic restoring force of the compression spring (11), so that the inclined screw tap (10) is corrected, and the original vertical machining state is maintained. At this point, the tap (10) may continue to thread down until the threading is complete.
Claims (2)
1. The tapping auxiliary device based on the magneto-rheological effect comprises a tap wrench (3), a wrench fixing clamp (4), a cylindrical roller bearing (7), a piston (6), a cylindrical barrel (5), a base (12), a tap (10), an O-shaped sealing ring (8), a compression spring (11), a permanent magnet (9), magneto-rheological fluid (13), a coil storage barrel (2) and an electromagnetic coil (1); the tap wrench (3) is fixed on the wrench fixing clamp (4), and two ends of the tap wrench (3) are cylindrical handles, so that effective tapping rotation moment is provided; the wrench fixing clamp (4) is a disc type, the upper end face of the wrench fixing clamp is provided with a groove for positioning and clamping the tap wrench (3), and the lower end of the wrench fixing clamp is in interference fit with the cylindrical roller bearing (7); the cylindrical roller bearing (7) is in interference fit with the shaft shoulder of the piston (6); the piston (6) is a revolution body, the upper end of the piston is provided with a shaft shoulder, the lower end of the piston is of a disc structure, and 4 circular grooves are formed for installing and fixing the permanent magnets (9); the wall surface of the lower disc is provided with 6 semicircular through holes which are used as flow channels of magnetorheological fluid (13); the number of the compression springs (11) is 4, and two ends of the compression springs are respectively fixed on the disc of the piston (6) and the base (12) so as to provide upward restoring force for the piston (6); one O-shaped sealing ring (8) is respectively fixed in the grooves of the cylinder (5) and the piston (6) to keep the sealing of magnetorheological fluid (13) and prevent leakage in the working process; the cylindrical barrel (5) and the base (12) are fixedly connected through threads; the magnetorheological fluid (13) is filled in a closed space formed by the cylindrical barrel (5), the base (12), the piston (6) and the O-shaped sealing ring (8); the coil accommodating cylinder (2) is fixed on the outer wall surface of the cylindrical cylinder (5); the electromagnetic coil (1) is wound in the coil accommodating cylinder (2); when the tapping auxiliary device based on the magneto-rheological effect works, as the rotation moment on the tap wrench (3) is unbalanced, the piston (6) and the tap (10) are inclined at the same time, due to the electromagnetic induction effect, the acceleration generated when the piston (6) is inclined causes the permanent magnet (9) to rapidly cut down the electromagnetic coil (1), so that the electromagnetic coil (1) instantaneously generates induction current and then generates a magnetic field, at the moment, the magneto-rheological liquid (13) instantaneously changes from a liquid state to a solid-like state under the action of the magnetic field, further inclination of the piston (6) is prevented, when the inclination motion of the piston (6) tends to be static under the action of the magneto-rheological liquid (13), namely, the piston (6) has no inclination acceleration, at the moment, the permanent magnet (9) has no rapid cutting action relative to the electromagnetic coil (1), the electromagnetic coil (1) has no induction current and induction, the magneto-rheological effect is generated, the magneto-rheological liquid (13) instantaneously changes from a liquid state to a solid-like state under the action, the action of the magneto-rheological liquid returns to a normal state under the moment, the screw tap (10) is restored to a normal working state under the action of the elastic thread (10), the screw thread is restored to a normal working state under the state, and the screw thread is restored to the normal state under the normal working state, and the screw thread is restored, until the thread machining is completed.
2. The tapping auxiliary device based on magneto-rheological effect according to claim 1, wherein the coil housing (2), the cylindrical barrel (5) and the base (12) are all made of silicon steel materials, so that the magnetic field generated by electromagnetic induction of the electromagnetic coil and the permanent magnet is enhanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640667.6A CN108788333B (en) | 2018-06-14 | 2018-06-14 | Tapping auxiliary device based on magneto-rheological effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640667.6A CN108788333B (en) | 2018-06-14 | 2018-06-14 | Tapping auxiliary device based on magneto-rheological effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108788333A CN108788333A (en) | 2018-11-13 |
| CN108788333B true CN108788333B (en) | 2024-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640667.6A Active CN108788333B (en) | 2018-06-14 | 2018-06-14 | Tapping auxiliary device based on magneto-rheological effect |
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| Country | Link |
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| CN (1) | CN108788333B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110315152A (en) * | 2019-05-24 | 2019-10-11 | 邯郸钢铁集团有限责任公司 | A kind of tapping internal thread tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006077788A (en) * | 2004-09-07 | 2006-03-23 | Honda Motor Co Ltd | Variable damping force damper |
| KR20080064304A (en) * | 2007-01-04 | 2008-07-09 | 삼성전자주식회사 | Washing machine |
| CN102364154A (en) * | 2011-10-25 | 2012-02-29 | 杭州星迈新材料技术有限公司 | Passive damping adjustable magneto-rheological fluid shock absorber |
| CN202344066U (en) * | 2011-12-16 | 2012-07-25 | 安徽理工大学 | Vertical location device for hand tapping |
| CN203526736U (en) * | 2013-11-12 | 2014-04-09 | 张欣倪 | Tapping auxiliary device |
| CN106678256A (en) * | 2017-01-19 | 2017-05-17 | 长安大学 | Magnetoelectric self-powered suspension shock absorber of electric vehicle |
| CN107676419A (en) * | 2017-10-26 | 2018-02-09 | 东北大学 | A kind of self-powered method of magnetic rheological liquid damper self-induction and damper |
| CN107815983A (en) * | 2017-10-30 | 2018-03-20 | 黄丽贤 | A kind of magnetic flow liquid speed bump structure |
| CN208528251U (en) * | 2018-06-14 | 2019-02-22 | 浙江师范大学 | A kind of tapping auxiliary device based on magnetic rheology effect |
-
2018
- 2018-06-14 CN CN201810640667.6A patent/CN108788333B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006077788A (en) * | 2004-09-07 | 2006-03-23 | Honda Motor Co Ltd | Variable damping force damper |
| KR20080064304A (en) * | 2007-01-04 | 2008-07-09 | 삼성전자주식회사 | Washing machine |
| CN102364154A (en) * | 2011-10-25 | 2012-02-29 | 杭州星迈新材料技术有限公司 | Passive damping adjustable magneto-rheological fluid shock absorber |
| CN202344066U (en) * | 2011-12-16 | 2012-07-25 | 安徽理工大学 | Vertical location device for hand tapping |
| CN203526736U (en) * | 2013-11-12 | 2014-04-09 | 张欣倪 | Tapping auxiliary device |
| CN106678256A (en) * | 2017-01-19 | 2017-05-17 | 长安大学 | Magnetoelectric self-powered suspension shock absorber of electric vehicle |
| CN107676419A (en) * | 2017-10-26 | 2018-02-09 | 东北大学 | A kind of self-powered method of magnetic rheological liquid damper self-induction and damper |
| CN107815983A (en) * | 2017-10-30 | 2018-03-20 | 黄丽贤 | A kind of magnetic flow liquid speed bump structure |
| CN208528251U (en) * | 2018-06-14 | 2019-02-22 | 浙江师范大学 | A kind of tapping auxiliary device based on magnetic rheology effect |
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| Publication number | Publication date |
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| CN108788333A (en) | 2018-11-13 |
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