CN103286980A - Mould pressing device of radiating orientation forming hydraulic machine - Google Patents

Mould pressing device of radiating orientation forming hydraulic machine Download PDF

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Publication number
CN103286980A
CN103286980A CN2013102408665A CN201310240866A CN103286980A CN 103286980 A CN103286980 A CN 103286980A CN 2013102408665 A CN2013102408665 A CN 2013102408665A CN 201310240866 A CN201310240866 A CN 201310240866A CN 103286980 A CN103286980 A CN 103286980A
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Prior art keywords
magnetizer
punch
magnetic
magnetic conductor
ring
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CN2013102408665A
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CN103286980B (en
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颜国义
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Nantong Guoyi Forging Machine Tool Co Ltd
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Nantong Guoyi Forging Machine Tool Co Ltd
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Abstract

The invention discloses a mould pressing device of a radiating orientation forming hydraulic machine. Mainly, an upper inner magnetizer and an upper punch are fixedly connected, the inner ring of the upper punch is fixedly connected with an upper punch inner magnetizer, the top portion of the upper inner magnetizer is fixedly connected to an upper sliding block, the outer ring of the upper inner magnetizer is connected with an upper orientation coil, the outer side of the upper orientation coil is provided with an upper external magnetizer A, the top portion of the upper external magnetizer A is fixedly connected to the upper sliding block, a female die is fixedly connected to the upper end of a supporting frame, the lower end of the supporting frame is fixedly connected to a lower sliding block, the outer ring of the supporting frame is connected with a lower orientation coil, a lower punch is installed inside the female die in a sleeved mode, a core bar is installed inside the lower punch in a sleeved mode, the lower end of the core bar is provided with a lower punch magnetizer in a sleeved mode, the lower punch magnetizer is fixedly connected with the lower punch, the outer ring of the female die is provided with a magnetizer in a sleeved mode, the outer ring of the magnetizer is fixedly connected with a rotary body, the rotary body rotates along the axis of the female die in the circumferential direction under the action of an external force driving device, through change of the shape and number of the magnetizer, magnetic field intensity of magnetic powder inside a die cavity is increased, a radiating orientation magnetic field is generated in the die cavity through rotation of the magnetizer. Due to the fact that the pressing direction and the direction of the magnetic field are perpendicular, magnetization direction of the magnetic powder in the die cavity is radial, and pressing magnet bodies are a magnetic ring and a magnetic shoe which are oriented in a radiating mode.

Description

A kind of molding device of radially oriented forming hydraulic press
Technical field
The present invention relates to a kind of hydraulic press, relate in particular to a kind of hydraulic press of realizing formed product by the magnetic field radiation orientation.
Background technology
Its shape of product major part of prior art compression moulding anisotropic permanent magnet is square or long cylinder magnet, and processing method after overground, machine cuts, Wire EDM etc. again is processed into the product of suitable user's needs such as annulus, watt shape.The material wastage rate height, back processing power consumption and manually also more.The most of watt shape magnet that adopts of radially oriented permanent magnet is formed radially oriented magnetic field, and its watt shape magnet is bonded in internal diameter or the external diameter in iron loop, and the moulding of watt shape magnet can be adopted vertical orientated and parallel-oriented two kinds of forms.Vertical orientated because the direction of press power is vertical with differently-oriented directivity, and the orientation effect of product is good, magnetic property is higher.But vertical orientated mould manufacturing is difficulty, easy arrisdefect during the demoulding, and therefore general employing is parallel-oriented, because the press power direction is identical with differently-oriented directivity, press power can influence orientation effect, reduces performance.And two kinds of method production costs are higher, and back processing charges is big, and the material energy waste is bigger, and the differently-oriented directivity of magnet can not reach radially oriented fully.Our company on June 25th, 2008 disclosed Chinese patent (publication number is: 201077162) by adopting the radially oriented method of forming to be solved, in production practices, find that magnet magnetic property that this method produces a little less than.
Summary of the invention
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of molding device of radially oriented forming hydraulic press, magnetic conductor is fixedlyed connected with upper punch in being mainly, the upper punch inner ring is fixedly connected with magnetic conductor in the upper punch, the magnetic conductor top is fixedly connected on the top shoe in going up, the outer ring of magnetic conductor is connected with oriented coils in last, the last oriented coils outside is provided with outer magnetizer A, and upward fixedly connected with top shoe in the top of outer magnetizer A; Former is fixedly connected on the bracing frame upper end, fixedly connected with sliding block in the bracing frame lower end, the bracing frame outer ring is connected with down oriented coils, be set with bottom punch in the former, be set with plug in the bottom punch, the plug lower end is set with the bottom punch magnetic conductor, the bottom punch magnetic conductor is fixedlyed connected with bottom punch, the former outer ring is with magnetic conductor, and the magnetic conductor outer ring is fixedly connected with rotary body, and rotary body force driving device effect outside lower edge former axis rotates in a circumferential direction.
Further, the structure of magnetic conductor is: the magnetic conductor that is uniform-distribution with quantity N 〉=1 at former outer ring circumference.
Further, the outer ring of magnetic conductor also is fastenedly connected with rotary body, and rotary body is shaped as cylinder, and the bottom of rotary body along the circumferential direction is evenly distributed with helical teeth.
Further, the external force driving device structure is: motor is connected with output shaft, and the other end of output shaft is equipped with helical gear.
Further, magnetic conductor with the syndeton of outer force driving device is: magnetic conductor is connected with the rotary body close-fitting, the helical teeth engagement that the helical teeth on the rotary body is connected with the motor output shaft end.
Further, the contact of the lateral surface of last outer magnetizer A has last outer magnetizer B, and last outer magnetizer B hangs on top shoe.
The present invention adopts the combination of double orientation electromagnet, utilize core multi-point radial magnetic conduction to external radiation, the fast rotational magnetic conductor forms radiation field, and pressing direction is vertical with the magnetic direction that magnetizes, the direction of magnetization of magnetic makes it directly to be pressed into radially oriented magnet radially in the rare-earth permanent magnet.
The invention has the advantages that: 1. by magnetic conductor, oriented coils and magnetic conductive loop up and down up and down, the plug internal upper part is opposite with bottom magnetic field orientating direction, and magnetic field intensity equates, makes the interior magnetic magnetic domain arranged radially of die cavity; 2. by changing shape and the quantity of magnetic conductor, increased the magnetic field intensity of magnetic in the die cavity; 3. make magnetic magnetic domain arranged radially in the die cavity by the rotation magnetic conductor, produce radially oriented magnetic field; 4. pressing direction is vertical with magnetic direction, in the die cavity direction of magnetization of magnetic radially, pressing magnetic body is radially oriented magnetic ring and magnetic shoe.
Description of drawings
Fig. 1 is structural scheme of mechanism of the present invention.
Fig. 2 is the schematic diagram under the duty of the present invention.
Fig. 3 is the vertical view of former of the present invention outer ring magnetic conductor.
The specific embodiment
The molding device of radially oriented forming hydraulic press of the present invention, as shown in Figure 1: magnetic conductor 1 is fixedlyed connected with upper punch 2 in going up, upper punch 2 inner rings are fixedly connected with magnetic conductor 3 in the upper punch, magnetic conductor 1 top is fixedly connected on the top shoe 4 in going up, the outer ring of magnetic conductor 1 is connected with oriented coils 5 in last, last oriented coils 5 outsides are provided with outer magnetizer A6, and fixedly connected with top shoe 4 in the top of last outer magnetizer A6, last outer magnetizer B17 is hung on the top shoe 4, be positioned at the outside of outer magnetizer A6, outer magnetizer A6 guiding in the dependence, former 7 is fixedly connected on bracing frame 8 upper ends, fixedly connected with sliding block 9 in bracing frame 8 lower ends, bracing frame 8 outer rings are connected with down oriented coils 10, be set with bottom punch 11 in the former 7, be set with plug 12 in the bottom punch 11, plug 12 lower ends are set with bottom punch magnetic conductor 13, bottom punch magnetic conductor 13 is fixedlyed connected with bottom punch 11, former 7 outer rings are with magnetic conductor 14, magnetic conductor 14 outer rings are fixedly connected with rotary body 15, rotary body 15 force driving device 16 effect lower edge former 7 axis outside rotates in a circumferential direction, make the magnetic domain arranged radially by rotation magnetic conductor 14, make the interior magnetic direction of magnetization of die cavity radially, by changing magnetic conductor 14 shapes and quantity, increase die cavity internal magnetic field intensity.
As shown in Figure 2: under the duty, in mold cavity, load onto powder, it is descending that top shoe 4 drives upper punch 2, when upper punch 2 and former 7 matched moulds, last oriented coils 5 and following oriented coils 10 energisings, in former 7 die cavities, form radial magnetic field, force driving device 16 effects outside down, rotary body 15 drives magnetic conductor 14 rotations, produces radially oriented magnetic field, makes magnetic magnetic domain arranged radially in the die cavity, it is descending that top shoe 4 drives upper punch 2 continuation then, sliding block 9 drive formers 7 are descending simultaneously, form the two-way pressurization of powder, and pressing magnetic body is radially oriented magnetic ring and magnetic shoe.
As shown in Figure 3: between magnetic conductor 14 and plug 12, produced radial magnetic field after going up oriented coils 5 and 10 energisings of following oriented coils, change the magnetic field intensity that magnetic conductor 14 shapes and quantity increase magnetic in the die cavity, by rotation magnetic conductor 14, in former 7, produce radially oriented magnetic field.

Claims (6)

1. the molding device of a radially oriented forming hydraulic press, magnetic conductor is fixedlyed connected with upper punch in being mainly, the upper punch inner ring is fixedly connected with magnetic conductor in the upper punch, the magnetic conductor top is fixedly connected on the top shoe in going up, the outer ring of magnetic conductor is connected with oriented coils in last, the last oriented coils outside is provided with outer magnetizer A, and upward fixedly connected with top shoe in the top of outer magnetizer A; Former is fixedly connected on the bracing frame upper end, fixedly connected with sliding block in the bracing frame lower end, the bracing frame outer ring is connected with down oriented coils, be set with bottom punch in the former, be set with plug in the bottom punch, the plug lower end is set with the bottom punch magnetic conductor, the bottom punch magnetic conductor is fixedlyed connected with bottom punch, it is characterized in that: described former outer ring is with magnetic conductor, and described magnetic conductor outer ring is fixedly connected with rotary body, and described rotary body force driving device effect outside lower edge former axis rotates in a circumferential direction.
2. the molding device of a kind of radially oriented forming hydraulic press according to claim 1, it is characterized in that: the structure of described magnetic conductor is: the magnetic conductor that is uniform-distribution with quantity N 〉=1 at former outer ring circumference.
3. the molding device of a kind of radially oriented forming hydraulic press according to claim 2, it is characterized in that: the outer ring of described magnetic conductor also is fastenedly connected with rotary body, described rotary body is shaped as cylinder, and the bottom of described rotary body along the circumferential direction is evenly distributed with helical teeth.
4. the molding device of a kind of radially oriented forming hydraulic press according to claim 1, it is characterized in that: described external force driving device structure is: motor is connected with output shaft, and the other end of output shaft is equipped with helical gear.
5. according to the molding device of the described a kind of radially oriented forming hydraulic press of claim 1 to 4, it is characterized in that: described magnetic conductor with the syndeton of outer force driving device is: magnetic conductor is connected with the rotary body close-fitting, the helical teeth engagement that the helical teeth on the rotary body is connected with the motor output shaft end.
6. the molding device of a kind of radially oriented forming hydraulic press according to claim 1, it is characterized in that also comprising outer magnetizer B, the described outer magnetizer B that goes up hangs on top shoe, is positioned at the outside of outer magnetizer A, outer magnetizer A guiding in the dependence, and face contact.
CN201310240866.5A 2013-06-18 2013-06-18 A kind of molding device of radially oriented forming hydraulic press Active CN103286980B (en)

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CN103286980B CN103286980B (en) 2016-05-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107958776A (en) * 2017-09-30 2018-04-24 浙江凯文磁钢有限公司 A kind of method for improving the permanent-magnet ferrite rectangular magnet shaping degree of orientation
CN111957957A (en) * 2020-08-26 2020-11-20 宁波韵升股份有限公司 Preparation method of low-declination wafer magnetic steel

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CN1374665A (en) * 2001-03-14 2002-10-16 包头稀土研究院 Multiple polymerization and radiation orientation process of forming and preparing magnetic ring
JP2003088994A (en) * 2001-09-14 2003-03-25 Sumitomo Special Metals Co Ltd Device and method for forming ring-shaped magnet
CN201077162Y (en) * 2007-08-13 2008-06-25 南通国谊锻压机床厂 Die pressing device of radiation oriented moulding hydraulic press
CN202172011U (en) * 2011-08-04 2012-03-21 中国电子科技集团公司第九研究所 Radially oriented magnetic field mold
CN102543353A (en) * 2012-03-09 2012-07-04 上海平野磁气有限公司 Method and device for manufacturing magnetic radiation ring
CN202352512U (en) * 2011-11-01 2012-07-25 南通国谊锻压机床有限公司 Special rare earth permanent magnet parallel orientation forming equipment
CN202377532U (en) * 2012-01-09 2012-08-15 湖南航天工业总公司 Pressing die for preparing radial direction-oriented integrated permanent magnet ring
CN202405090U (en) * 2012-01-12 2012-08-29 湖南航天诚远精密机械有限公司 Radiation orientation magnetic loop forming mold
CN103042211A (en) * 2012-07-27 2013-04-17 宁波市鄞州泰源磁业有限公司 Die for radially-oriented sintered NdFeB magnetic ring and production process thereof
CN103123863A (en) * 2013-02-26 2013-05-29 江苏东瑞磁材科技有限公司 Preparation device for radial orientation permanent magnet ring
CN203371814U (en) * 2013-06-18 2014-01-01 南通国谊锻压机床有限公司 Mould pressing device of radiation orientation forming hydraulic machine

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1374665A (en) * 2001-03-14 2002-10-16 包头稀土研究院 Multiple polymerization and radiation orientation process of forming and preparing magnetic ring
JP2003088994A (en) * 2001-09-14 2003-03-25 Sumitomo Special Metals Co Ltd Device and method for forming ring-shaped magnet
CN201077162Y (en) * 2007-08-13 2008-06-25 南通国谊锻压机床厂 Die pressing device of radiation oriented moulding hydraulic press
CN202172011U (en) * 2011-08-04 2012-03-21 中国电子科技集团公司第九研究所 Radially oriented magnetic field mold
CN202352512U (en) * 2011-11-01 2012-07-25 南通国谊锻压机床有限公司 Special rare earth permanent magnet parallel orientation forming equipment
CN202377532U (en) * 2012-01-09 2012-08-15 湖南航天工业总公司 Pressing die for preparing radial direction-oriented integrated permanent magnet ring
CN202405090U (en) * 2012-01-12 2012-08-29 湖南航天诚远精密机械有限公司 Radiation orientation magnetic loop forming mold
CN102543353A (en) * 2012-03-09 2012-07-04 上海平野磁气有限公司 Method and device for manufacturing magnetic radiation ring
CN103042211A (en) * 2012-07-27 2013-04-17 宁波市鄞州泰源磁业有限公司 Die for radially-oriented sintered NdFeB magnetic ring and production process thereof
CN103123863A (en) * 2013-02-26 2013-05-29 江苏东瑞磁材科技有限公司 Preparation device for radial orientation permanent magnet ring
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107958776A (en) * 2017-09-30 2018-04-24 浙江凯文磁钢有限公司 A kind of method for improving the permanent-magnet ferrite rectangular magnet shaping degree of orientation
CN107958776B (en) * 2017-09-30 2020-05-19 浙江凯文磁钢有限公司 Method for improving forming orientation degree of permanent magnetic ferrite rectangular magnet
CN111957957A (en) * 2020-08-26 2020-11-20 宁波韵升股份有限公司 Preparation method of low-declination wafer magnetic steel

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