CN106971838A - A kind of method and device of radially oriented annulus - Google Patents
A kind of method and device of radially oriented annulus Download PDFInfo
- Publication number
- CN106971838A CN106971838A CN201710292233.7A CN201710292233A CN106971838A CN 106971838 A CN106971838 A CN 106971838A CN 201710292233 A CN201710292233 A CN 201710292233A CN 106971838 A CN106971838 A CN 106971838A
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- CN
- China
- Prior art keywords
- magnetic
- magnetic field
- ring mould
- mould chamber
- alignment
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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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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
Abstract
The present invention relates to the magnetic orientation technology field of annular magnetic, specifically related to a kind of method and device of radially oriented annulus, load magnetic in ring mould chamber, the magnetic in ring mould chamber is orientated by alignment magnetic field device, the alignment magnetic field of alignment magnetic field device is present in around ring mould chamber, the strong magnetic of annular is produced, and is exerted a force by upper punch and bottom punch, pressed magnetic powder simultaneously obtains blank；Magnetic is put into ring mould chamber, annular orientation is carried out to the magnetic in ring mould chamber by alignment magnetic field, improve the degree of orientation, axial direction of the alignment magnetic field along ring mould chamber is reciprocating in forming process, ring mould intracavitary has the strong magnetic of annular, the strong magnetic of the annular is moved along ring mould chamber, can not only magnetic be uniformly directed, and larger orientation can be also obtained when making the radiation ring that internal diameter is smaller or height is higher, the magnetic property and uniformity of radiation ring is all greatly improved.
Description
Technical field
The present invention relates to the magnetic orientation technology field of annular magnetic, and in particular to a kind of method of radially oriented annulus
And device.
Background technology
Radiation magnetic loop has a wide range of applications in terms of machine field, particularly robot servo motors.Make radiation ring
Maximum technological difficulties be method for alignment of the formative stage to magnetic.Limited by physics, the radiation ring mesh of higher ratio of height to diameter
Preceding pressing under magnetic field method mainly has two kinds：The first be segmentation be orientated and suppress, then be pressed into bigger pressure one it is whole
Body.This forming method is that annulus merotomizes, and being directed respectively into alignment magnetic field to each section is orientated, this method
Maximum weak point is that the degree of orientation is uneven, easy to crack in addition combined with portion, yield rate reduction, cost of manufacture increase；
Second is rotating excitation field orientation, and such as Application No. 200810066269.4 discloses a kind of radially oriented circular magnetic
The forming method and equipment of body, and Application No. 201410529813.X disclose a kind of radiation ring magnet aligning device with
And method for alignment.Above-mentioned patent is that mould rotation or magnetic field rotating realize that ring magnet is orientated, because magnetic field rotating is in engineering
It is upper difficult to realize, mould rotation is used in reality, because pressure ring difficulty itself is larger, mould is again in rotation so that production
Efficiency and qualification rate are all very low, it is impossible to the need for meeting mass industrialized production.Meanwhile, producing less annular magnetic
When, alignment magnetic field reduction makes magnetic orientation incomplete, causes magnetic property inconsistent.
The content of the invention
Above-mentioned technical problem is have been directed to, the invention provides a kind of method and device of radially oriented annulus, it is ensured that orientation
Abundant and all directions orientation is uniform, it is ensured that the magnetic property of ring magnet is consistent.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：
A kind of method of radially oriented annulus, loads magnetic in ring mould chamber, and the alignment magnetic field of alignment magnetic field device is present
The narrow and small strong magnetic of part annular of short transverse is produced in ring mould chamber, and by the reciprocating motion above and below magnetic field, allowed in die cavity
Magnetic be all orientated.And exerted a force by upper punch and bottom punch, pressed magnetic powder simultaneously obtains blank.
Blank applies a reverse exciting current to magnet coil after being made and demagnetized, and upper punch is exited, bottom punch
Blank is ejected into annular mold cavity.
The magnetic easily aoxidized, is packed to device and sets glove box, be filled with inert gas in glove box, keep away
Exempt from oxidation, control the oxygen content 50ppm-2000ppm of sealing system.
A kind of device of radially oriented annulus, including frame, alignment magnetic field device, upper punch and bottom punch, the upper mould
Punching and bottom punch are oppositely arranged, and are coupled with frame, and ring mould chamber is provided between the upper punch and bottom punch, described
Upper punch and bottom punch are realized by upper cylinder and lower oil cylinder move respectively, so as to be squeezed to the magnetic in ring mould chamber
Pressure, the upper cylinder and lower oil cylinder couple with frame, and the alignment magnetic field device can be moved up and down, in ring mould chamber
Magnetic carry out annular orientation.
The alignment magnetic field device includes cartridge and pole piece, and the pole piece couples with upper punch, and the cartridge is annular, institute
State alignment magnetic field device with upper cylinder to couple, drive alignment magnetic field device to move up and down by upper cylinder, cartridge is set in ring
Outside shape mold cavity, so as to carry out annular orientation to the magnetic in ring mould chamber.
The alignment magnetic field device is coupled by upper guide rod with frame, and the upper guide rod couples with housing slide, is protected
Demonstrate,prove the steady movement of alignment magnetic field device.
The bottom punch is coupled by lower guide rod with lower oil cylinder, and the lower guide rod couples with housing slide.
The present invention compared with prior art, has an advantageous effect in that：
Magnetic is put into ring mould chamber, annular orientation is carried out to the magnetic in ring mould chamber by alignment magnetic field, is improved
The degree of orientation, axial direction of the alignment magnetic field along ring mould chamber is reciprocating in forming process, and ring mould intracavitary has annular
Qiang Ci, the strong magnetic of the annular is moved along ring mould chamber, can is not only uniformly directed magnetic, and smaller making internal diameter
Or larger orientation field can be also obtained during the higher radiation ring of height, the magnetic property and uniformity of radiation ring is all obtained very big
Improve.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the use process schematic of the present invention；
Fig. 3 is the schematic diagram that the present invention produces the strong magnetic of annular；
Wherein：1 is frame, and 3 be upper punch, and 4 be bottom punch, and 5 be upper cylinder, and 6 be lower oil cylinder, and 7 be cartridge, and 8 be pole piece, and 9 are
Ring mould chamber, 10 be upper guide rod, and 11 be lower guide rod, and 12 be electromagnet coil, and 13 be yoke.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in Fig. 1~2, a kind of device of radially oriented annulus, including frame 1, alignment magnetic field device, the and of upper punch 3
Bottom punch 4, upper punch 3 and bottom punch 4 are oppositely arranged, and are coupled with frame 1, and upper punch 3 and bottom punch 4 are respectively by oiling
Cylinder 5 and lower oil cylinder 6, which are realized, to be moved, and the cylinder body of upper cylinder 5 and lower oil cylinder 6 couples with frame 1；Upper punch 3 and bottom punch 4 are distinguished
Couple with the piston rod of upper cylinder 5 and lower oil cylinder 6.
Electromagnet coil 12, yoke 13, pole piece 8, cartridge 7 and the upper punch 3 of alignment magnetic field device are driven by upper cylinder 5
Move down；Upper punch 3 is coupled by pole piece 8 with upper cylinder 5；Lower oil cylinder 6 promotes bottom punch 4 to move up, and upper punch 3 is with
Stamping 4 extrudes the magnetic in annular mold cavity 9.When upper cylinder 5 is moved down, annular cartridge 7 is set to be set in ring mould chamber 9
Outside, the strong magnetic aligning of annular is carried out to magnetic.
Upper punch 3 and bottom punch 4 obtain blank after magnetic is compacted, and are ejected blank by bottom punch 4.
Alignment magnetic field device is coupled by upper guide rod 10 with frame 1, and upper guide rod 10 is slidably connected with frame 1, it is ensured that
The steady movement of alignment magnetic field device and upper punch 3；Bottom punch 4 is coupled by lower guide rod 11 with lower oil cylinder 6, lower guide rod 11
It is slidably connected with frame 1, it is ensured that the steady movement of bottom punch 4, so as to ensure magnetic uniform force.
As shown in figure 3, cartridge 7 is N poles, pole piece 8 is S poles, also interchangeable magnetic pole, and in ring mould chamber 9, cartridge 7 is produced
Raw toroidal magnetic field, because alignment magnetic field is present in around ring mould chamber 9, it is ensured that orientation is fully and all directions orientation is equal
It is even, the degree of orientation is improved, and larger orientation can be also obtained when making the radiation ring that internal diameter is smaller or height is higher, make spoke
The magnetic property and uniformity for penetrating ring are all greatly improved.
Only presently preferred embodiments of the present invention is explained in detail above, but the present invention is not limited to above-described embodiment,
In the knowledge that those of ordinary skill in the art possess, it can also be made on the premise of present inventive concept is not departed from each
Change is planted, various change should be included in the scope of the protection.
Claims (7)
1. a kind of method of radially oriented annulus, it is characterised in that：Load magnetic in ring mould chamber, filled by alignment magnetic field
Put and the magnetic in ring mould chamber be orientated, the alignment magnetic field of alignment magnetic field device is present in around ring mould chamber,
The narrow and small strong magnetic of part annular of short transverse is produced, and by the reciprocating motion above and below magnetic field, the magnetic allowed in die cavity all must
Arrive；To；Upper punch and bottom punch exert a force simultaneously, and pressed magnetic powder simultaneously obtains blank.
2. a kind of method of radially oriented annulus according to claim 1, it is characterised in that：Electromagnetic wire is given after blank is obtained
Circle applies a reverse exciting current and demagnetized, and upper punch is exited, and blank is ejected annular mold cavity by bottom punch.
3. a kind of method of radially oriented annulus according to claim 1, it is characterised in that：The magnetic easily aoxidized, it is right
Device is packed and sets glove box, and inert gas is filled with glove box, it is to avoid oxidation, and the oxygen of control sealing system contains
Measure 50ppm-2000ppm.
4. a kind of device of radially oriented annulus, it is characterised in that：Including frame（1）, alignment magnetic field device, upper punch（3）With
Bottom punch（4）, the upper punch（3）And bottom punch（4）It is oppositely arranged, and and frame（1）Connection, the upper punch（3）With
Bottom punch（4）Between be provided with ring mould chamber（9）, the upper punch（3）And bottom punch（4）Pass through upper cylinder respectively（5）With
Lower oil cylinder（6）Movement is realized, so as to ring mould chamber（9）In magnetic extruded, the upper cylinder（5）With lower oil cylinder
（6）And frame（1）Connection, the alignment magnetic field device can be moved up and down, to ring mould chamber（9）In magnetic carry out ring
Shape is orientated.
5. a kind of device of radially oriented annulus according to claim 4, it is characterised in that：The alignment magnetic field device bag
Include cartridge（7）And pole piece（8）, the pole piece（8）With upper punch（3）Connection, the cartridge（7）For annular, the alignment magnetic field
Device and upper cylinder（5）Connection, passes through upper cylinder（5）Drive alignment magnetic field device to move up and down, make cartridge（7）It is set in annular
Mold cavity（9）Outside, so as to ring mould chamber（9）In magnetic carry out annular orientation.
6. a kind of device of radially oriented annulus according to claim 4, it is characterised in that：The alignment magnetic field device leads to
Cross guide rod（10）With frame（1）Connection, the upper guide rod（10）With frame（1）It is slidably connected, it is ensured that alignment magnetic field is filled
The steady movement put.
7. a kind of device of radially oriented annulus according to claim 4, it is characterised in that：The bottom punch（4）Pass through
Lower guide rod（11）With lower oil cylinder（6）Connection, the lower guide rod（11）With frame（1）It is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292233.7A CN106971838A (en) | 2017-04-28 | 2017-04-28 | A kind of method and device of radially oriented annulus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292233.7A CN106971838A (en) | 2017-04-28 | 2017-04-28 | A kind of method and device of radially oriented annulus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106971838A true CN106971838A (en) | 2017-07-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710292233.7A Pending CN106971838A (en) | 2017-04-28 | 2017-04-28 | A kind of method and device of radially oriented annulus |
Country Status (1)
| Country | Link |
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| CN (1) | CN106971838A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107316740A (en) * | 2017-08-31 | 2017-11-03 | 马鞍山齐力机电设备有限公司 | A kind of magnetic product formation system and its technique |
| CN107331501A (en) * | 2017-08-31 | 2017-11-07 | 马鞍山齐力机电设备有限公司 | The lower caging device and its method of a kind of magnetic slurry shaping |
| CN107351223A (en) * | 2017-08-31 | 2017-11-17 | 马鞍山齐力机电设备有限公司 | A kind of float type liquid press and its method of work |
| CN114843062A (en) * | 2022-04-15 | 2022-08-02 | 中钢天源股份有限公司 | Preparation method of radial orientation multi-pole magnetic ring, magnetic ring mold and magnetic ring |
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| CN2478715Y (en) * | 2001-04-05 | 2002-02-27 | 北京大圣格尔冶金设备有限公司 | Four-cylinder multi-purpose rare-earth permanent-magnet radiation orientation magnetic field automatic press |
| JP2003086443A (en) * | 2001-09-11 | 2003-03-20 | Sumitomo Special Metals Co Ltd | Magnetic-field forming system and powder-forming method |
| CN101256898A (en) * | 2008-03-27 | 2008-09-03 | 深圳市天盈德科技有限公司 | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body |
| CN103310970A (en) * | 2012-03-09 | 2013-09-18 | 江苏东瑞磁材科技有限公司 | Preparation method of radial orienting permanent magnetic ring and radial orienting device used by same |
| CN106057462A (en) * | 2016-07-13 | 2016-10-26 | 太原盛开源永磁设备有限公司 | Shifting magnetic field type method and device for pressing radiant orientation circular ring |
-
2017
- 2017-04-28 CN CN201710292233.7A patent/CN106971838A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2478715Y (en) * | 2001-04-05 | 2002-02-27 | 北京大圣格尔冶金设备有限公司 | Four-cylinder multi-purpose rare-earth permanent-magnet radiation orientation magnetic field automatic press |
| JP2003086443A (en) * | 2001-09-11 | 2003-03-20 | Sumitomo Special Metals Co Ltd | Magnetic-field forming system and powder-forming method |
| CN101256898A (en) * | 2008-03-27 | 2008-09-03 | 深圳市天盈德科技有限公司 | Method and apparatus for forming of radiation orientating round ring-shaped magnetic body |
| CN103310970A (en) * | 2012-03-09 | 2013-09-18 | 江苏东瑞磁材科技有限公司 | Preparation method of radial orienting permanent magnetic ring and radial orienting device used by same |
| CN106057462A (en) * | 2016-07-13 | 2016-10-26 | 太原盛开源永磁设备有限公司 | Shifting magnetic field type method and device for pressing radiant orientation circular ring |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107316740A (en) * | 2017-08-31 | 2017-11-03 | 马鞍山齐力机电设备有限公司 | A kind of magnetic product formation system and its technique |
| CN107331501A (en) * | 2017-08-31 | 2017-11-07 | 马鞍山齐力机电设备有限公司 | The lower caging device and its method of a kind of magnetic slurry shaping |
| CN107351223A (en) * | 2017-08-31 | 2017-11-17 | 马鞍山齐力机电设备有限公司 | A kind of float type liquid press and its method of work |
| CN114843062A (en) * | 2022-04-15 | 2022-08-02 | 中钢天源股份有限公司 | Preparation method of radial orientation multi-pole magnetic ring, magnetic ring mold and magnetic ring |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |
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| RJ01 | Rejection of invention patent application after publication |