KR20170074621A - Grinding device of ferrite magnetic for motor - Google Patents
Grinding device of ferrite magnetic for motor Download PDFInfo
- Publication number
- KR20170074621A KR20170074621A KR1020150184120A KR20150184120A KR20170074621A KR 20170074621 A KR20170074621 A KR 20170074621A KR 1020150184120 A KR1020150184120 A KR 1020150184120A KR 20150184120 A KR20150184120 A KR 20150184120A KR 20170074621 A KR20170074621 A KR 20170074621A
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- KR
- South Korea
- Prior art keywords
- ferrite
- ferrite magnet
- main body
- motor
- guide
- Prior art date
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention relates to a ferrite magnetic machining apparatus for a motor capable of improving the productivity and reducing the manufacturing cost by fully automating the machining process of the ferrite magnet for a motor, and capable of producing a high quality product by greatly improving machining precision.
A ferrite magnetic machining apparatus for a motor according to the present invention comprises a product supply unit 10 for continuously supplying ferrite magnets having arc-shaped cross-sections in two rows from one side of a main body 40 in the longitudinal direction of the main body 40, (10), a cutting tool (20) for sequentially machining both sides of the ferrite magnet, the cutting face, the outer periphery, and the inner periphery of the ferrite magnet supplied from the product supply part (10) And guiding rails (30) guiding the cutting tool to the workpiece (20) and continuously guiding the discharge of machined ferrite magnets in the workpiece (20).
According to the present invention, since the machining process of the ferrite magnet is fully automated, the machining time is greatly shortened and the productivity is greatly improved. In addition, the manufacturing cost can be greatly reduced through the reduction of the labor cost, the machining precision is greatly improved, Can be produced.
Description
The present invention relates to a ferrite magnetic machining apparatus for a motor, and more particularly, to a machining apparatus for machining a ferrite magnet for a motor by fully automating the machining process of the ferrite magnet for motors, thereby improving productivity and reducing manufacturing cost, To a ferrite magnetic finishing apparatus for a motor.
A motor, which is a typical power machine that uses the rotational force of the rotating shaft by rotating the rotating shaft by receiving electric power, has a stator and a rotor configuration for rotating the rotating shaft.
The stator includes a housing having a magnet on an inner circumferential surface thereof, and the rotor comprises an armature, a commutator, and a brush.
At this time, the magnet attached to the inner circumferential surface of the housing of the motor to be used as a stator generally uses a ferrite magnet, which is a ring-shaped magnet formed by using the ferrite material.
Ferrite is a metal oxide magnetic material made by hardening powders of oxides and iron oxides such as manganese, copper, cobalt, nickel, magnesium and the like and has a high resistivity and relatively low resistance and high frequency loss. Since it does not generate a thin current, it is widely used as a high frequency magnetic core material such as a ferrite core, a ferrite circulator, a ferrite rod antenna, and a dynamic loudspeaker. .
Since the ferrite magnet is a magnetic body, that is, an electromagnet, due to the induction current, the ferrite magnet of the ring shape is cut in the longitudinal direction of the
Generally, ferrite magnets are formed by molding into a ring shape using ferrite powder and then sintering at a high temperature in a furnace. In addition, not only the size is irregularly formed in the ferrite magnetic sintering process, .
When ferrite magnets having irregular size and rough surface are inserted and fixed in the housing of the motor as described above, in the process of installing a plurality of ferrite magnets arranged in a circle on the inner circumferential surface of the housing, balancing ), The performance of the motor deteriorates and the life of the motor is shortened.
The ferrite magnet used in the motor has cut surfaces on both sides so that the cut surfaces of the ferrite magnets arranged in a circular shape in a state where the electric wires are positioned inside are mated with each other.
However, when the cutting surface of the ferrite magnet is roughened, an air gap is generated between the cutting surfaces that are opposed to each other, and such a gap causes a performance deterioration of the ferrite magnet.
Therefore, the ferrite magnet used for the motor should be made absolutely consistent in size and smooth the outer periphery, so that the machining of the ferrite magnet must be performed in order to minimize the voids generated at the cutting face of the ferrite magnet.
Particularly, in recent years, as the motor is widely used in high-priced products such as automobiles and household appliances, when the function of the motor is further refined and advanced, and when the ferrite magnet which influences the performance of the motor is to be machined into a ferrite magnet, It is demanded to further improve high-precision in the properties, smoothness, and the like.
Nevertheless, in the prior art, the work of finishing the outer periphery of the ferrite magnet was performed manually.
In other words, the skilled worker fixed the ferrite magnet on the dedicated jig, and manually manipulated it with a grinder, so productivity is remarkably low due to the decrease in work efficiency, The precision of the product is not excellent and it is difficult to maintain the quality and reliability of the product uniformly.
In addition, since fine grinding chips are scattered in the course of processing the ferrite magnet using a grinding machine, the work environment of the workplace is not only poor, but also poses a problem of harming the health of the worker. Therefore, The manufacturing cost of the ferrite magnet is increased as the labor cost is increased.
A ferrite core polishing apparatus for improving such a problem has been developed in the prior art, and a typical prior art will be described as follows.
Japanese Patent Application Laid-Open No. 10-1287934 discloses a body having a space portion provided with a transfer path having an inlet and an outlet for inserting and discharging a core body therein and a core body provided on the transfer path, And a pressing means for pressing the core body to be polished to the polishing means side in the polishing region of the transfer path, wherein the polishing means comprises a power source A polishing motor for generating a rotating power by receiving the rotating force; And a plate-shaped abrasive plate positioned at the polishing region and adapted to receive the rotation power of the polishing motor and rotate to polish the seating surface of the core body.
The conventional ferrite core seat surface grinding apparatus as described above has an advantage of improving the flatness and uniformity of the seating surface in recent years, As the motor is widely used in expensive products such as automobiles and household appliances, when the function of the motor is further refined and advanced, when the ferrite magnet which influences the performance of the motor is to be machined, not only the seat surface of the ferrite magnet but also the length of the ferrite magnetic , A very precise machining technology is required over the entire surface of the ferrite magnet, such as the flatness of the smooth surface of the inner peripheral surface and the outer peripheral surface.
Therefore, it is practically difficult to grind high-quality ferrite magnets with a polishing apparatus capable of machining only the seating surface as in the prior art, and it is possible to automate all of the series of machining steps including feeding, machining, and discharging of ferrite magnet, It is necessary to develop a ferrite magnetic machining apparatus for a motor capable of producing high quality products by greatly improving machining accuracy due to process automation.
A ferrite magnetic machining apparatus for a motor according to the present invention is a ferrite magnetic machining apparatus for a motor. The ferrite magnetic machining apparatus for a motor includes a ferrite magnet having an arcuate cross section arranged in a longitudinal direction of a main body (40) (20) for sequentially machining the side faces, the outer circumference and the inner circumference of the ferrite magnet supplied from the product supply unit (10) by using a polishing wheel, A
The
The
The
The
The
The
The
In the ferrite magnetic machining apparatus for a motor according to the present invention, a series of machining steps including supplying, machining, and discharging ferrite magnets are automatically performed in the machining of ferrite magnets, so that the machining time of ferrite magnets is greatly shortened, Not only greatly improves but also has the effect of significantly lowering the manufacturing cost through labor cost reduction.
In addition, machining accuracy is greatly improved by continuously machining both sides of the ferrite magnet, the cut surface, the outer periphery, and the inner periphery, thereby producing high-quality ferrite magnets.
In addition, although the ferrite magnet is shaped in its entirety, the entire apparatus is small in volume, has a simple configuration, is excellent in space efficiency, and has advantages of easy maintenance and maintenance.
In addition, it is possible to prevent scattering of the abrasive chips generated during the machining of ferrite magnets and to efficiently discharge the abrasive chips, thereby making it possible to maintain the environment of the workplace clean without harming the health of the workers.
1 is a perspective view of an embodiment of a ferrite magnetic machining apparatus for a motor of the present invention.
2 is a front view of an embodiment of a ferrite magnetic machining apparatus for a motor of the present invention.
3 is a rear view of a main portion according to an embodiment of a ferrite magnetic finishing apparatus for a motor of the present invention.
4 is a plan view of an embodiment of a ferrite magnetic machining apparatus for a motor of the present invention.
5 is a perspective view showing a configuration of a product supply portion of a ferrite magnetic machining apparatus for a motor according to the present invention.
6 is a front view showing a configuration of a product supply unit of a ferrite magnetic machining apparatus for a motor according to the present invention.
7 is a front cross-sectional view of the conveying conveyor provided in the product supply unit of the ferrite magnetic finishing apparatus for a motor of the present invention.
8 is a side cross-sectional view of a product supply part of a ferrite magnetic machining apparatus for a motor according to the present invention.
FIG. 9 is a front enlarged view showing a magnetic flux machining apparatus for a magnetic ferrite magnetic finishing apparatus according to the present invention.
10 is a cross-sectional side view of a study on the width of a work of drawing according to an embodiment of a ferrite magnetic machining apparatus for a motor of the present invention.
10A is an enlarged cross-sectional view of a ferrite magnetic flux machining apparatus for motor according to an embodiment of the present invention;
FIG. 11 is a side sectional view of the outer periphery of the cutting tool according to the embodiment of the ferrite magnetic machining apparatus for a motor of the present invention. FIG.
11A is an enlarged cross-sectional view of an outer rotor according to an embodiment of a ferrite magnetic finishing apparatus for a motor of the present invention.
12 is a cross-sectional side view of an internal combustion engine according to an embodiment of a ferrite magnetic machining apparatus for a motor of the present invention.
12A is an enlarged cross-sectional view of an internal combustion engine according to an embodiment of a ferrite magnetic machining apparatus for a motor of the present invention.
FIG. 13 is a process chart showing a processing procedure of a ferrite magnet according to an embodiment of a ferrite magnetic machining apparatus for a motor according to the present invention. FIG.
14 is a perspective view showing a ferrite magnet for a general motor;
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure and operation of a ferrite magnetic machining apparatus for a motor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
A ferrite magnetic machining apparatus for a motor according to the present invention is a ferrite magnetic machining apparatus for a motor, comprising a ferrite magnet having an arc-shaped cross section as shown in Figs. 1 to 4 attached thereto in the longitudinal direction of the
5 to 8, ferrite magnets are arrayed in the longitudinal direction of the
The
The ascending / descending
It is preferable that the conveying
When a ferrite magnet is mounted on the conveying
The
The
The
The
That is, the
The
That is, the sensing means 103 includes a
Therefore, when the
When the
The
That is, the aligning means 104 includes a
The cutting
10 to 10A showing a cross section taken along the line A-A 'in FIG. 9 of the accompanying drawings. The motor M1 (M1) installed on the rear surface of the
The outer peripheral edge of the detonated
The detonating
In order to simultaneously polish both side surfaces of the ferrite magnet moving along the support table 303 provided in the
The pressurizing and conveying
The
On the other hand, when two or more rows of
The
The outer periphery of the
The outer
The
The outer periphery of the
The
As described above, in order to simultaneously polish the inner periphery and the cut surface of the ferrite magnet moving along the support table 303 provided in the
The pressing means 205 includes a
The
On the other hand, all the lifting frames 401a, 401b, 401c, 401d, and 401e installed on the
That is, the elevating
Therefore, in order to enable accurate elevation operation of the
It is to be noted that the elevating
A position detecting means for detecting the position of each of the lift frames lifted by the lift means 402a, 402b, 402c, 402d, 402e is provided on one side of each of the
Meanwhile, in each machining portion of the
The
It is preferable that two rows of the
The
At this time, it is preferable that the height of the
The operation of the ferrite magnetic machining apparatus for a motor to which the technology of the present invention is applied will be described with reference to the accompanying drawings.
In order to automatically perform machining on both sides of the ferrite magnet for motors, the outer circumferences and the inner circumferences of the ferrite magnet for motors sequentially, the ferrite magnet, which is chamfered to the size of the product after the sintering, 30 on the conveying
The ferrite magnet continuously stacked on the conveying
When the ferrite magnet that has been conveyed along the
Ferrite magnets having both side surfaces and cutting surfaces polished at the same time are transported along the guiding
The ferrite magnet polished by the outer circumferential edge of the outer
Therefore, the supply of ferrite magnet for machining, the both side faces of the ferrite magnet, and the series of processes from the cutting face, the outer periphery, and the inner periphery to the polishing and discharging are all automatically performed, thereby facilitating mass production of ferrite magnets .
In the ferrite magnetic machining apparatus for a motor according to the present invention, ferrite magnets continuously supplied through the
Further, when the ferrite magnet is to be machined, the abrasive liquid is sprayed from the abrasive liquid spray nozzle provided on one side of each abrasive wheel, so that the abrasive chips and dust generated in the abrasive process are washed by the abrasive liquid and discharged together with the abrasive liquid, And scattering of dust can be prevented, so that the workplace environment can be maintained comfortably.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
A: ferrite magnetic A1: side
A2: section A3: outer periphery
A4: My main part 10: Product supply part
101: conveying
101b: conveying
101d: tension portion 102: height adjusting portion
102a:
102c: a lifting
103a:
103c: detection sensor 104: alignment means
104a:
104c: upper guide 20:
20a: Study of a wide open shed 201: Abrasive polishing wheel
202: Pressurizing and conveying
202b:
202d:
203: Outside grinding
204: Internal grinding wheel 205: Pressurizing means
205a:
30: guide rail 301: guide rail
302: Passage 303: Support
304: Low friction member 40: Body
401a, 401b, 401c, 401d, 401e:
402a, 402b, 402c, 402d, 402e:
M1, M2, M3, M4: motor
Claims (10)
An outer circumferential edge and an inner circumferential edge of the ferrite magnet supplied from the product supply unit 10 by using a grinding wheel;
A guide rail 30 for guiding the ferrite magnet continuously supplied from the product supply part 10 to the drawing tool 20 and for continuously guiding the discharge of the machined ferrite magnet from the drawing tool 20 Wherein the ferrite magnetic machining apparatus comprises:
The product supply unit 10 includes a transfer unit 101 for transferring the ferrite magnet to the workpiece 20 in the longitudinal direction of the main body 40;
And a height adjusting unit (102) for adjusting the height of the conveying unit (101) by a lifting drive unit (102c). The ferrite magnetic finishing apparatus for a motor
The cutting tool 20 includes a wider edge portion 20a for simultaneously polishing both side surfaces and a cutting surface of the ferrite magnet using the detonating polishing wheel 201;
An outer circumference grinding part 20b for grinding the outer circumference of the ferrite magnet by using the circumferential grinding wheel 203;
And an internal combustion engine (20c) for simultaneously grinding the inner periphery and the cut surface of the ferrite magnet by using the inner grinding wheel (204).
The guide rails 30 are formed by arranging two rows of guide rods 301 for guiding ferrite magnets in the longitudinal direction of the main body 40. Each of the guide rods 301 is provided with a ferrite magnet, Is formed on the support base (303).
The conveying unit 101 includes a lifting body 101a installed vertically in a base 102a fixed to an upper surface of the main body 40;
A conveying conveyor 101b installed in the elevator 101a in the transverse direction to convey the ferrite magnet in the longitudinal direction of the main body 40;
A conveyor driving unit 101c for driving the conveying conveyor 101b;
And a tension part (101c) for adjusting the tension of the conveying conveyor (101b).
The height adjusting unit 102 includes: a base 102a fixed to an upper surface of the main body;
The handle 102b is provided at the upper end and the lower end is installed at the upper portion of the base 102a to convert the rotational motion of the handle 102b into a linear motion to move up and down the elevator A ferrite magnetic finishing device for a motor,
The product supply unit 10 includes a conveying conveyor 101b for conveying the ferrite magnet in the longitudinal direction of the main body 40; Further comprising sensing means (103) for sensing whether the conveying conveyor (101b) is loaded with ferrite magnetism.
The product supply unit 10 includes a conveying conveyor 101b for conveying the ferrite magnet in the longitudinal direction of the main body 40; Further comprising alignment means (104) for aligning the ferrite magnets on the conveying conveyor (101b) in two rows and feeding the ferrite magnets in the longitudinal direction.
The sensing means (103)
A vertical bar 103a vertically installed on an elevating body 101a vertically movably mounted on a base 102a fixed to an upper surface of the main body 40;
A horizontal bar (103b) installed at the vertical bar (103a) so as to be adjustable in height;
A sensing sensor 103c installed at one end of the transverse bar 103b for sensing the ferrite magnet by contact with the ferrite magnet mounted on the conveying conveyor 101b for conveying the ferrite magnet in the longitudinal direction of the main body 40, And a ferrite magnetic machining apparatus for a motor
The alignment means (104)
A center guide 104a formed in the longitudinal direction of the conveying conveyor 101b for conveying the ferrite magnet in the longitudinal direction of the main body 40 and fixed to the upper surface of the ascending / descending member 101a so as to be located at the upper center of the conveying conveyor 101b;
A side guide 104b fixed to the upper surface of the ascending / descending member 101a so as to adjust the distance between the center guide 104a and the center guide 104a;
And an upper guide 104c mounted on the conveying conveyor 101b and vertically adjustable in height above the elevating member 101a so as to press the upper surface of the ferrite magnet to be conveyed. Ferrite magnetic machining equipment.
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KR1020150184120A KR101843235B1 (en) | 2015-12-22 | 2015-12-22 | Grinding device of ferrite magnetic for motor |
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KR1020150184120A KR101843235B1 (en) | 2015-12-22 | 2015-12-22 | Grinding device of ferrite magnetic for motor |
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KR101843235B1 KR101843235B1 (en) | 2018-05-14 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101966902B1 (en) * | 2018-10-30 | 2019-04-09 | 윤동규 | Ferrite upper and lower surface and edge grinding device |
KR101969509B1 (en) * | 2018-10-30 | 2019-04-16 | 윤동규 | Segment ferrite grinding device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR200227574Y1 (en) * | 2000-12-18 | 2001-06-15 | 김화수 | Grinding apparatus for core |
KR200360647Y1 (en) * | 2004-05-27 | 2004-09-01 | 고천호 | The chamfering machine of ferrites Magnetic for motor |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101966902B1 (en) * | 2018-10-30 | 2019-04-09 | 윤동규 | Ferrite upper and lower surface and edge grinding device |
KR101969509B1 (en) * | 2018-10-30 | 2019-04-16 | 윤동규 | Segment ferrite grinding device |
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