CN111141188B - E-type soft magnetic ferrite magnetic core inspection device - Google Patents
E-type soft magnetic ferrite magnetic core inspection device Download PDFInfo
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- CN111141188B CN111141188B CN201911345996.9A CN201911345996A CN111141188B CN 111141188 B CN111141188 B CN 111141188B CN 201911345996 A CN201911345996 A CN 201911345996A CN 111141188 B CN111141188 B CN 111141188B
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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Abstract
The invention discloses an E-type soft magnetic ferrite core inspection device, which comprises an E-type soft magnetic ferrite core, a workbench, a clamp assembly, an inspection block, a sliding plate and a first moving mechanism, wherein: the fixture assembly is fixed on the workbench and used for fixing the E-type soft magnetic ferrite core; the inspection block is fixed on the sliding plate, the sliding plate is horizontally and slidably mounted on the workbench, and the first moving mechanism is arranged on the workbench and used for driving the sliding plate to move towards the direction close to or far away from the clamp assembly. According to the inspection device for the E-type soft magnetic ferrite core, the E-type soft magnetic ferrite core is usually required to be fixed on the clamp assembly in the inspection process, the first moving mechanism drives the inspection block to move towards the direction close to the E-type soft magnetic ferrite core, the inspection block is the minimum size of the winding opening of the E-type soft magnetic ferrite core, and therefore the size of the winding opening of the E-type soft magnetic ferrite core is inspected, the structure is simple, and the inspection efficiency is convenient to increase.
Description
Technical Field
The invention relates to the technical field of soft magnetic ferrite magnetic core processing equipment, in particular to an E-type soft magnetic ferrite magnetic core inspection device.
Background
The soft magnetic ferrite is Fe2O3The ferrimagnetic oxide as the main component is produced by a powder metallurgy method. The soft magnetic ferrite is characterized in that: the magnetic material has the advantages of low saturation magnetic flux density, low magnetic conductivity, low Curie temperature, low medium-high frequency loss and low cost, and is widely applied to filters, tuning filters, load coils, impedance matching transformers, proximity sensors, transformers and the like. The common soft magnetic ferrite magnetic core is E-shaped, the shape is simple, and the effective area of the magnetic core is large.
The width of middle part winding post and both sides side post wire winding opening size often need be examined to the in-process of manufacturing E type soft magnetic ferrite magnetic core, often need the staff to hold measuring tool and measure one by one in the inspection process generally, and work efficiency is low.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides an E-type soft magnetic ferrite core inspection device.
The invention provides an E-type soft magnetic ferrite core inspection device, which comprises an E-type soft magnetic ferrite core, a workbench, a clamp assembly, an inspection block, a sliding plate and a first moving mechanism, wherein:
the fixture assembly is fixed on the workbench and used for fixing the E-type soft magnetic ferrite core;
the inspection block is fixed on the sliding plate, the sliding plate is horizontally and slidably mounted on the workbench, and the first moving mechanism is arranged on the workbench and used for driving the sliding plate to move towards the direction close to or far away from the clamp assembly.
As a further optimized scheme of the invention, the clamp assembly comprises a mounting plate, a transverse positioning assembly and a top fixing strip, wherein the mounting plate is fixed on the workbench, the E-type soft magnetic ferrite magnetic core is placed on the workbench, a back plate of the E-type soft magnetic ferrite magnetic core is contacted with the mounting plate, the transverse positioning assembly and the top fixing strip are mounted on the mounting plate, the transverse positioning assembly is provided with a transverse fixing opening, and the transverse fixing opening is used for fixing two parallel side surfaces of the E-type soft magnetic ferrite magnetic core; the top fixing strip is used for fixing the upper surface of the E-type soft magnetic ferrite core.
As a further optimized scheme of the invention, the transverse positioning assembly comprises a sliding block, a fixed block, a first elastic element and a first positioning plate, wherein the fixed block and the first positioning plate are fixed on the mounting plate, the sliding block is horizontally and slidably mounted on the mounting plate, the sliding block moves towards the direction close to or away from the fixed block, the first elastic element is fixed between the first positioning plate and the fixed block, and the first elastic element is elastically deformed along the sliding displacement direction of the sliding block.
As a further optimized scheme of the invention, the sliding block is provided with a first positioning surface and a second positioning surface, the first positioning surface is parallel to the surface of the mounting plate, which is in contact with the E-type soft magnetic ferrite magnetic core, and the second positioning surface and the fixed block form a transverse fixing opening on the surface of the first positioning plate, which is opposite to the fixed block.
As a further optimized scheme of the invention, the clamp assembly further comprises a second positioning plate and a second elastic piece, the second positioning plate is fixed on the mounting plate and is positioned above the top fixing strip, the top fixing strip is vertically and slidably mounted on the mounting plate, the second elastic piece is fixed between the second positioning plate and the top fixing strip, and the second elastic piece is elastically deformed in the vertical direction.
As a further preferable aspect of the present invention, the proof block includes a first proof block and a second proof block, the first proof block and the second proof block are mounted in parallel to each other on the sliding plate, a vertical proof space for accommodating the winding post of the E-type soft ferrite core is formed between the first proof block and the second proof block, and the first proof block and the second proof block are respectively matched with two winding openings of the E-type soft ferrite core.
As a further optimized scheme of the invention, the device also comprises a qualified stamp which is arranged on the sliding plate and is positioned in the vertical inspection space.
As a further optimized scheme of the invention, when the first check block and the second check block are in contact with the mounting plate, the qualified stamp is in contact with the middle plate of the E-type soft magnetic ferrite core.
As a further optimized scheme of the invention, the inkpad printer further comprises a second driving mechanism and an inkpad box, wherein the inkpad box is slidably arranged on the workbench, the moving displacement of the inkpad box is vertical to the moving displacement of the sliding plate, and the second driving mechanism is arranged on the workbench and is used for driving the inkpad box to horizontally move.
As a further optimized scheme of the invention, a third elastic piece is arranged between the inkpad box and the sliding plate, and the third elastic piece generates elastic deformation along the sliding displacement direction of the sliding plate.
According to the inspection device for the E-type soft ferrite magnetic core, the E-type soft ferrite magnetic core is usually required to be fixed on the clamp assembly in the inspection process, the first moving mechanism drives the inspection block to move towards the direction close to the E-type soft ferrite magnetic core, the inspection block is the minimum size of the winding opening of the E-type soft ferrite magnetic core, and therefore the size of the winding opening of the E-type soft ferrite magnetic core is inspected, the structure is simple, and the inspection efficiency is convenient to increase.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is an enlarged view of a portion of the area A of the present invention;
FIG. 4 is a schematic view of a clamp assembly according to the present invention;
FIG. 5 is a schematic view of the present invention with the clamp assembly removed.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations denote like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, the first characteristic is that of the second characteristic
"above," "over," and "above" may mean that a first feature is directly or obliquely above a second feature, or that only a first feature is horizontally higher than a second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
An E-type soft ferrite core inspection apparatus as shown in fig. 1-4, comprising an E-type soft ferrite core 1, further comprising a table 2, a jig assembly 3, an inspection block 4, a sliding plate 5 and a first moving mechanism 6, wherein:
the fixture component 3 is fixed on the workbench 2, and the fixture component 3 is used for fixing the E-type soft magnetic ferrite magnetic core 1;
the inspection block 4 is fixed on the sliding plate 5, the sliding plate 5 is horizontally and slidably mounted on the workbench 2, the first moving mechanism 6 can be an electric cylinder, and the first moving mechanism 6 is arranged on the workbench 2 and used for driving the sliding plate 5 to move towards or away from the clamp assembly 3;
the fixture component 3 comprises a mounting plate 30, a transverse positioning component 31 and a top fixing strip 32, the mounting plate 30 is fixed on the workbench 2, the E-type soft magnetic ferrite magnetic core 1 is placed on the workbench 2, a back plate of the E-type soft magnetic ferrite magnetic core 1 is in contact with the mounting plate 30, the transverse positioning component 31 and the top fixing strip 32 are mounted on the mounting plate 30, the transverse positioning component 31 is provided with a transverse fixing opening 300, and the transverse fixing opening 300 is used for fixing two parallel side surfaces of the E-type soft magnetic ferrite magnetic core 1; the top fixing strip 32 is used for fixing the upper surface of the E-type soft magnetic ferrite core 1;
the transverse positioning component 31 comprises a sliding block 310, a fixed block 311, a first elastic element 312 and a first positioning plate 313, wherein the fixed block 311 and the first positioning plate 313 are fixed on the mounting plate 30, the sliding block 310 is horizontally and slidably mounted on the mounting plate 30, the sliding block 310 moves towards the direction close to or away from the fixed block 311, the first elastic element 312 is fixed between the first positioning plate 313 and the fixed block 311, and the first elastic element 312 is elastically deformed along the sliding displacement direction of the sliding block 310;
the sliding block 310 is provided with a first positioning surface 3100 and a second positioning surface 3101, the first positioning surface 3100 is parallel to the surface of the mounting plate 30, which is in contact with the E-type soft magnetic ferrite core 1, and the second positioning surface 3101 and the fixed block 311 form a transverse fixing opening 300 on the surface opposite to the first positioning plate 313;
the clamp assembly 3 further comprises a second positioning plate 33 and a second elastic member 34, the second positioning plate 33 is fixed on the mounting plate 30 and is located above the top fixing strip 32, the top fixing strip 32 is vertically slidably mounted on the mounting plate 30, the second elastic member 34 is fixed between the second positioning plate 33 and the top fixing strip 32, and the second elastic member 34 is elastically deformed in the vertical direction;
the inspection block 4 comprises a first inspection block 40 and a second inspection block 41, the first inspection block 40 and the second inspection block 41 are arranged on the sliding plate 5 in parallel, a vertical inspection space 400 is formed between the first inspection block 40 and the second inspection block 41, the vertical inspection space 400 is used for accommodating a winding post of the E-type soft magnetic ferrite core 1, and the first inspection block 40 and the second inspection block 41 are respectively matched with two winding openings of the E-type soft magnetic ferrite core 1;
the device also comprises a qualified stamp 7, wherein the qualified stamp 7 is arranged on the sliding plate 5 and is positioned in the vertical inspection space 400;
when the first check block 40 and the second check block 41 are in contact with the mounting plate 30, the qualified stamp 7 is in contact with the middle plate of the E-type soft magnetic ferrite core 1;
the ink box is characterized by further comprising a second driving mechanism 8 and an ink box 9, wherein the ink box 9 is slidably mounted on the workbench 2, the displacement of the ink box 9 is perpendicular to the displacement of the sliding plate 5, the second driving mechanism 8 can be an electric cylinder, and the second driving mechanism 8 is mounted on the workbench 2 and used for driving the ink box 9 to horizontally move;
a third elastic member 10 is provided between the inkpad box 9 and the slide plate 5, and the third elastic member 10 is elastically deformed in a displacement direction in which the slide plate 5 slides.
In the working process of the embodiment: pulling the sliding block 310 and the fixing strip 32 to compress the first elastic element 312 and the second elastic element 34, placing the E-shaped soft magnetic ferrite core 1 in the transverse fixing opening 300, loosening the sliding block 310, the fixing strip 32 and the sliding block 310 to fix the E-shaped soft magnetic ferrite core 1, wherein the first elastic element 312 and the second elastic element 34 are in a compressed state, then the first driving mechanism 6 drives the inspection block 4 to move towards the direction close to the E-shaped soft magnetic ferrite core 1, if the first inspection block 40 and the second inspection block 41 extend into two winding openings of the E-shaped soft magnetic ferrite core 1, the winding opening of the E-shaped soft magnetic ferrite core 1 conforms to the minimum size, and the qualified seal 7 marks the middle winding column of the E-shaped soft magnetic ferrite core 1;
In order to facilitate the fixing of the E-type soft ferrite core, it is preferable in this embodiment that the fixture assembly 3 includes a mounting plate 30, a transverse positioning assembly 31 and a top fixing strip 32, the mounting plate 30 is fixed on the worktable 2, the E-type soft ferrite core 1 is placed on the worktable 2 and the back plate of the E-type soft ferrite core 1 contacts with the mounting plate 30, the transverse positioning assembly 31 and the top fixing strip 32 are mounted on the mounting plate 30, the transverse positioning assembly 31 has a transverse fixing opening 300, and the transverse fixing opening 300 is used for fixing two parallel side surfaces of the E-type soft ferrite core 1; the top fixing strip 32 is used for fixing the upper surface of the E-type soft ferrite core 1.
In order to facilitate the fixing of the E-type soft ferrite core, in the present embodiment, it is preferable that the transverse positioning assembly 31 includes a sliding block 310, a fixed block 311, a first elastic member 312 and a first positioning plate 313, the fixed block 311 and the first positioning plate 313 are fixed on the mounting plate 30, the sliding block 310 is horizontally slidably mounted on the mounting plate 30, the sliding block 310 moves toward or away from the fixed block 311, the first elastic member 312 is fixed between the first positioning plate 313 and the fixed block 311, and the first elastic member 312 is elastically deformed along the displacement direction in which the sliding block 310 slides.
To facilitate the fixing of the E-type soft ferrite core, it is preferable in this embodiment that the sliding block 310 has a first positioning surface 3100 and a second positioning surface 3101, the first positioning surface 3100 being parallel to a surface of the mounting plate 30 contacting the E-type soft ferrite core 1, and the second positioning surface 3101 forming the lateral fixing opening 300 with the fixing block 311 on a surface opposite to the first positioning plate 313.
In order to fix the E-type soft ferrite core, in this embodiment, it is preferable that the fixture assembly 3 further includes a second positioning plate 33 and a second elastic member 34, the second positioning plate 33 is fixed on the mounting plate 30 and located above the top fixing strip 32, the top fixing strip 32 is vertically slidably mounted on the mounting plate 30, the second elastic member 34 is fixed between the second positioning plate 33 and the top fixing strip 32, and the second elastic member 34 is elastically deformed in the vertical direction.
In the present embodiment, it is preferable that the proof block 4 includes a first proof block 40 and a second proof block 41, the first proof block 40 and the second proof block 41 are installed on the sliding plate 5 in parallel with each other, a vertical proof space 400 is formed between the first proof block 40 and the second proof block 41, the vertical proof space 400 is used for accommodating the winding posts of the E-type soft ferrite core 1, and the first proof block 40 and the second proof block 41 are respectively matched with two winding openings of the E-type soft ferrite core 1.
In order to facilitate the confirmation that the winding opening of the soft ferrite core 1 is larger than the minimum size, the soft ferrite core in the embodiment preferably further comprises a qualified stamp 7, the qualified stamp 7 is installed on the sliding plate 5 and located in the vertical inspection space 400, when the first inspection block 40 and the second inspection block 41 are in contact with the installation plate 30, the qualified stamp 7 is in contact with the middle plate of the E-type soft ferrite core 1, and if the first inspection block 40 and the second inspection block 41 can both pass through the winding opening, the qualified stamp engraves a stamp on the middle winding post of the soft ferrite core.
In order to facilitate the inkpad on the qualified seal 7, the preferred in this embodiment, still include second actuating mechanism 8 and inkpad box 9, inkpad box 9 slidable mounting is on workstation 2, the displacement that the inkpad box 9 removed is perpendicular with the displacement that the sliding plate 5 removed, second actuating mechanism 8 is installed on workstation 2 and is used for driving inkpad box 9 horizontal migration, second actuating mechanism 8 drives inkpad box 9 horizontal migration and makes the inkpad in the inkpad box 9 relative with qualified seal 7, first actuating mechanism 6 drives qualified seal 7 to be close to the motion of inkpad box 9 and makes qualified seal and the inkpad contact in the inkpad box 9, then first actuating mechanism 6 drives qualified seal 7 to move certain displacement to the direction of keeping away from the inkpad box 9, second actuating mechanism 8 drives inkpad box 9 to move to one side of qualified seal 7 to opposite direction, accomplish the inkpad process on the qualified seal 7.
In order to facilitate the realization of the contact between the qualified stamp 7 and the inkpad in the ink box 9, in the embodiment, the third elastic member 10 is preferably arranged between the inkpad box 9 and the sliding plate 5, the third elastic member 10 elastically deforms along the sliding displacement direction of the sliding plate 5, the first driving mechanism 6 drives the qualified stamp 7 to contact with the inkpad in the process of moving close to the inkpad box 9, then the third elastic member 10 is compressed, the qualified stamp 7 is ensured to be fully contacted with the inkpad, and then the first driving mechanism 6 stops moving.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides a soft magnetic ferrite core verifying attachment of E type, includes soft magnetic ferrite core (1) of E type, its characterized in that still includes workstation (2), anchor clamps subassembly (3), proof mass (4), sliding plate (5) and first moving mechanism (6), wherein:
the fixture component (3) is fixed on the workbench (2), and the fixture component (3) is used for fixing the E-type soft magnetic ferrite magnetic core (1);
the inspection block (4) is fixed on the sliding plate (5), the sliding plate (5) is horizontally installed on the workbench (2) in a sliding mode, and the first moving mechanism (6) is arranged on the workbench (2) and used for driving the sliding plate (5) to move towards the direction close to or away from the clamp assembly (3);
the fixture assembly (3) comprises a mounting plate (30), a transverse positioning assembly (31) and a top fixing strip (32), the mounting plate (30) is fixed on the workbench (2), the E-type soft magnetic ferrite magnetic core (1) is placed on the workbench (2), a back plate of the E-type soft magnetic ferrite magnetic core (1) is in contact with the mounting plate (30), the transverse positioning assembly (31) and the top fixing strip (32) are installed on the mounting plate (30), the transverse positioning assembly (31) is provided with a transverse fixing opening (300), and the transverse fixing opening (300) is used for fixing two parallel side faces of the E-type soft magnetic ferrite magnetic core (1); the top fixing strip (32) is used for fixing the upper surface of the E-type soft magnetic ferrite core (1).
2. The type-E soft ferrite core inspection device according to claim 1, wherein the lateral positioning assembly (31) comprises a sliding block (310), a fixed block (311), a first elastic member (312) and a first positioning plate (313), the fixed block (311) and the first positioning plate (313) are fixed on the mounting plate (30), the sliding block (310) is horizontally slidably mounted on the mounting plate (30), the sliding block (310) moves toward or away from the fixed block (311), the first elastic member (312) is fixed between the first positioning plate (313) and the fixed block (311), and the first elastic member (312) is elastically deformed along the sliding displacement direction of the sliding block (310).
3. The type E soft ferrite core inspection device according to claim 2, characterized in that the sliding block (310) has a first positioning surface (3100) and a second positioning surface (3101), the first positioning surface (3100) being parallel to the surface of the mounting plate (30) in contact with the type E soft ferrite core (1), the second positioning surface (3101) forming the lateral fixing opening (300) with the fixing block (311) on the surface opposite to the first positioning plate (313).
4. The type-E soft ferrite core inspection device according to claim 1, wherein the jig assembly (3) further comprises a second positioning plate (33) and a second elastic member (34), the second positioning plate (33) is fixed on the mounting plate (30) and located above the top fixing strip (32), the top fixing strip (32) is vertically slidably mounted on the mounting plate (30), the second elastic member (34) is fixed between the second positioning plate (33) and the top fixing strip (32), and the second elastic member (34) is elastically deformed in a vertical direction.
5. An E-type soft ferrite core inspection device according to claim 1, characterized in that the inspection block (4) comprises a first inspection block (40) and a second inspection block (41), the first inspection block (40) and the second inspection block (41) being mounted parallel to each other on the sliding plate (5), a vertical inspection space (400) being formed between the first inspection block (40) and the second inspection block (41), the vertical inspection space (400) being intended to accommodate the winding posts of the E-type soft ferrite core (1), the first inspection block (40) and the second inspection block (41) being adapted to the two winding openings of the E-type soft ferrite core (1), respectively.
6. An E-type soft ferrite core inspection device according to claim 5, characterized by further comprising a qualified stamp (7), the qualified stamp (7) being mounted on the sliding plate (5) and located in the vertical inspection space (400).
7. An E-type soft ferrite core inspection device according to claim 6, characterized in that the qualified stamp (7) is in contact with the middle plate of the E-type soft ferrite core (1) when the first inspection block (40) and the second inspection block (41) are in contact with the mounting plate (30).
8. An E-type soft ferrite core examination device according to claim 6, characterized by further comprising a second driving mechanism (8) and an inkpad box (9), wherein the inkpad box (9) is slidably mounted on the table (2), the displacement of the movement of the inkpad box (9) is perpendicular to the displacement of the movement of the sliding plate (5), and the second driving mechanism (8) is mounted on the table (2) and is used for driving the inkpad box (9) to move horizontally.
9. An E-type soft ferrite core examination device according to claim 6, characterized in that a third elastic member (10) is provided between the inkpad box (9) and the slide plate (5), the third elastic member (10) being elastically deformed in the displacement direction of the slide plate (5) in which it slides.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911345996.9A CN111141188B (en) | 2019-12-24 | 2019-12-24 | E-type soft magnetic ferrite magnetic core inspection device |
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| CN201911345996.9A CN111141188B (en) | 2019-12-24 | 2019-12-24 | E-type soft magnetic ferrite magnetic core inspection device |
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| CN111141188B true CN111141188B (en) | 2021-08-10 |
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| JP4761053B2 (en) * | 2006-03-15 | 2011-08-31 | 株式会社ジェイテクト | Rotational position sensor, composite rotational position sensor, and electric power steering apparatus |
| CN201434646Y (en) * | 2009-07-15 | 2010-03-31 | 隆达骨质瓷有限公司 | Positioning checker for ceramic cover lug |
| CN106091904A (en) * | 2016-08-01 | 2016-11-09 | 上海众源燃油分配器制造有限公司 | A kind of cubing for high pressure oil rail dimension control |
| CN206011408U (en) * | 2016-08-25 | 2017-03-15 | 天长市中德电子有限公司 | A kind of E-type magnetic core processing mold |
| CN206643024U (en) * | 2017-02-16 | 2017-11-17 | 中山市天文电子有限公司 | A kind of inspection equipment of EP types magnetic ferrite magnetic core center pillar |
| CN208945892U (en) * | 2018-10-26 | 2019-06-07 | 飞磁电子材料(东莞)有限公司 | A kind of abradant surface parallel detection system of T-type FERRITE CORE |
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