Air gap grinding wheel for grinding ferrite core

Abstract

The utility model relates to an air gap grinding wheel for grinding a ferrite core, which is applied to the technical field of air gap grinding wheels, solves the problems of low grinding efficiency and common grinding quality, and is provided with a first grinding wheel, a second grinding wheel and a third grinding wheel in sequence from top to bottom along the height direction. The first grinding wheel and the second grinding wheel are connected through a circular boss, the second grinding wheel and the third grinding wheel are connected through a circular boss, the outer edge diameters of the first grinding wheel, the second grinding wheel and the third grinding wheel are the same, and the outer edge diameter of each circular boss is smaller than that of the first grinding wheel. A mounting hole concentric with the first grinding wheel is formed in the first grinding wheel and extends downwards to the lower end face of the third grinding wheel. The magnetic core grinding device has the effects that a plurality of center pillars on a magnetic core can be ground at the same time, stability is high, and grinding efficiency and grinding quality can be improved.

Description

Technical Field

[0001] The utility model is applied to the technical field of air gap grinding wheels, in particular to an air gap grinding wheel for grinding ferrite cores. Background Art

[0002] After the existing multi-center-column ferrite core (refer to the existing public patent: a multi-center-column ferrite core, announcement number: CN220491709U, announcement date: 2024.02.13) is processed and formed, the center column on it needs to be ground so that its height is less than the height of the core side plate, thereby generating an air gap. When the existing grinding device grinds the multi-center-column ferrite core of this structure, multiple center columns are ground one by one, and the grinding efficiency is low and the grinding quality is average. Therefore, it is necessary to provide an air gap grinding wheel suitable for the multi-center-column ferrite core of this structure, so as to solve the existing problems. Utility Model Content

[0003] The utility model aims to provide an air gap grinding wheel for grinding ferrite cores, which solves the problems of low grinding efficiency and average grinding quality.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model provides an air gap grinding wheel for grinding a ferrite core, wherein a first grinding wheel, a second grinding wheel and a third grinding wheel are sequentially arranged from top to bottom along the height direction, the first grinding wheel and the second grinding wheel, the second grinding wheel and the third grinding wheel are connected by a circular boss, the outer edge diameters of the first grinding wheel, the second grinding wheel and the third grinding wheel are the same, the outer edge diameter of the circular boss is smaller than the outer edge diameter of the first grinding wheel, the first grinding wheel is provided with a mounting hole concentric with the first grinding wheel, and the mounting hole extends downward to the lower end surface of the third grinding wheel.

[0006] Furthermore, the outer edge diameter of the circular boss is adjusted and set according to the air gap value of the ferrite core.

[0007] Furthermore, a layer of grinding sand is provided on the outer surfaces of the first grinding wheel, the second grinding wheel and the third grinding wheel.

[0008] Furthermore, the first grinding wheel, the second grinding wheel, the third grinding wheel and the circular boss are integrally formed.

[0009] Furthermore, the first grinding wheel, the second grinding wheel, the third grinding wheel and the circular boss are detachably connected via a connecting piece.

[0010] Furthermore, the connecting member includes a bolt passing through the first grinding wheel, the second grinding wheel, the third grinding wheel and the circular boss in sequence, and a fastening nut connected to the bolt.

[0011] Furthermore, limiting protrusions are provided on the upper and lower end surfaces of the circular boss, and limiting grooves cooperating with the limiting protrusions are provided at positions corresponding to the limiting protrusions on the first grinding wheel, the second grinding wheel and the third grinding wheel.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The utility model discloses an air gap grinding wheel for grinding a ferrite core. When the ferrite core is ground by the air gap grinding wheel with this structure, a plurality of center columns on the core can be ground simultaneously, and the stability is high, and the grinding efficiency and the grinding quality can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the air gap grinding wheel in Example 1 of the utility model;

[0016] Figure 2 It is a sectional view of the overall structure of the air gap grinding wheel in Example 2 of the utility model;

[0017] Figure 3 It is a schematic diagram of an explosion of the air gap grinding wheel in Example 2 of the utility model.

[0018] The reference numerals are described as follows:

[0019] 1. First grinding wheel; 2. Second grinding wheel; 3. Third grinding wheel; 4. Grinding sand; 5. Circular boss; 6. Mounting hole; 7. Connector; 71. Bolt; 72. Fastening nut; 8. Limiting protrusion; 9. Limiting groove. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] Example 1

[0024] refer to Figure 1 , which is an air gap grinding wheel for grinding a ferrite core provided in this example, is provided with a first grinding wheel 1, a second grinding wheel 2 and a third grinding wheel 3 in sequence from top to bottom along the height direction, and the outer surfaces of the first grinding wheel 1, the second grinding wheel 2 and the third grinding wheel 3 are provided with a layer of grinding sand 4, and the grinding sand is used to facilitate the grinding of the ferrite core. The first grinding wheel 1 and the second grinding wheel 2, and the second grinding wheel 2 and the third grinding wheel 3 are connected by a circular boss 5, and the outer edge diameters of the first grinding wheel 1, the second grinding wheel 2 and the third grinding wheel 3 are the same, and the outer edge diameter of the circular boss 5 is smaller than the outer edge diameter of the first grinding wheel 1. The first grinding wheel 1, the second grinding wheel 2, the third grinding wheel 3 and the circular boss 5 are integrally formed, and the integrally formed setting facilitates the processing of the air gap grinding wheel. The outer edge diameter of the circular boss 5 is adjusted and set according to the air gap value of the ferrite core. The first grinding wheel 1 is provided with a mounting hole 6 which is concentric therewith, and the mounting hole 6 extends downward to the lower end surface of the third grinding wheel 3 . The mounting hole 6 is used to facilitate mounting the air gap grinding wheel on the grinding equipment.

[0025] Example 2

[0026] refer to Figure 2 and Figure 3The content of this embodiment is basically the same as that of the embodiment 1, except that the first grinding wheel 1, the second grinding wheel 2, the third grinding wheel 3 and the circular boss 5 are detachably connected by a connector 7. The connector 7 includes a bolt 71 that passes through the first grinding wheel 1, the second grinding wheel 2, the third grinding wheel 3 and the circular boss 5 in sequence and a fastening nut 72 that is threadedly connected to the bolt 71. The combination of the bolt 71 and the fastening nut 72 facilitates the installation and disassembly of the air gap grinding wheel, and the operation is fast and convenient; and the air gap grinding wheel is detachably connected, so when one of the grinding wheels is damaged, it can be easily replaced without replacing the grinding wheel that works normally, saving costs. Limiting protrusions 8 are provided on the upper and lower end surfaces of the circular boss 5, and limiting grooves 9 cooperating with the limiting protrusions 8 are provided at positions corresponding to the limiting protrusions 8 on the first grinding wheel 1, the second grinding wheel 2, and the third grinding wheel 3. Through the cooperation between the limiting protrusions 8 and the limiting grooves 9, the first grinding wheel 1, the second grinding wheel 2, the third grinding wheel 3 and the circular boss 5 are more closely matched, and synchronous rotation can be ensured during operation.

[0027] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An air gap grinding wheel for grinding ferrite cores, characterized in that: A first grinding wheel (1), a second grinding wheel (2) and a third grinding wheel (3) are sequentially arranged from top to bottom in the height direction; the first grinding wheel (1) and the second grinding wheel (2), and the second grinding wheel (2) and the third grinding wheel (3) are connected via a circular boss (5); the outer edge diameters of the first grinding wheel (1), the second grinding wheel (2) and the third grinding wheel (3) are the same; the outer edge diameter of the circular boss (5) is smaller than the outer edge diameter of the first grinding wheel (1); the first grinding wheel (1) is provided with a mounting hole (6) which is concentric with the first grinding wheel (1); the mounting hole (6) extends downward to the lower end surface of the third grinding wheel (3).

2. The air gap grinding wheel for grinding ferrite cores according to claim 1, characterized in that: The outer edge diameter of the circular boss (5) is adjusted and set according to the air gap value of the ferrite core.

3. The air gap grinding wheel for grinding ferrite cores according to claim 1 or 2, characterized in that: The outer surfaces of the first grinding wheel (1), the second grinding wheel (2) and the third grinding wheel (3) are all provided with a layer of grinding sand (4).

4. The air gap grinding wheel for grinding ferrite cores according to claim 3, characterized in that: The first grinding wheel (1), the second grinding wheel (2), the third grinding wheel (3) and the circular boss (5) are integrally formed.

5. The air gap grinding wheel for grinding ferrite cores according to claim 3, characterized in that: The first grinding wheel (1), the second grinding wheel (2), the third grinding wheel (3) and the circular boss (5) are detachably connected via a connecting piece (7).

6. The air-gap grinding wheel for grinding ferrite cores according to claim 5, characterized in that: The connecting member (7) comprises a bolt (71) passing through the first grinding wheel (1), the second grinding wheel (2), the third grinding wheel (3) and the circular boss (5) in sequence, and a fastening nut (72) threadedly connected to the bolt (71).

7. The air-gap grinding wheel for grinding ferrite cores according to claim 5 or 6, characterized in that: Limiting protrusions (8) are provided on the upper and lower end surfaces of the circular boss (5), and limiting grooves (9) cooperating with the limiting protrusions (8) are provided at positions corresponding to the limiting protrusions (8) on the first grinding wheel (1), the second grinding wheel (2), and the third grinding wheel (3).

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