Magnetic core air gap processing method, electronic device, and storage medium
By eliminating errors in the core center column and core edge through a single grinding process, and forming a preset height difference through a second grinding process, the problem of inaccurate grinding wheel position adjustment in the prior art is solved, and high-precision machining of the core air gap is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- QINGDAO AEROSPACE SEMICON RES INST
- Filing Date
- 2023-12-29
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, during the processing of ferrite cores, the initial position adjustment of the grinding wheel is affected by the worker's subjective consciousness, resulting in inaccurate grinding height of the core column and poor air gap consistency between different batches of cores.
The process involves a single grinding process to eliminate minor errors in the core column and core edge, followed by a second grinding process to create a preset height difference between the core column and core edge. The same grinding wheel is used for processing to avoid errors caused by multiple clamping and grinding wheel changes.
This improved the forming accuracy of the air gap in the magnetic core, ensured the high consistency between the core pillar and the core edge, reduced sources of error, and improved processing accuracy.
Smart Images
Figure CN117773660B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of magnetic core air gap processing technology, and in particular to a magnetic core air gap processing method, electronic device, and storage medium. Background Technology
[0002] An existing type of ferrite core includes a core pillar and core edges. The core edges are arranged around the core pillar and are spaced apart from it. The core pillar and core edges are assumed to be at the same height (the supply standard is equal height, but there may be errors in practice). Currently, when machining this type of ferrite core, the ferrite core needs to be clamped on the work platform of a grinding machine. The operator operates the rotating grinding wheel on the grinding machine to contact the core pillar and grind the core pillar downwards to a preset height according to the preset grinding wheel feed rate, thereby creating a preset height difference between the core edge and the core pillar (i.e., forming a core air gap).
[0003] However, existing technology first requires adjusting the grinding wheel to a position where it just contacts the core column (i.e., the initial position of the grinding wheel). This step is greatly affected by the worker's subjective awareness (depending on the operator's observation, experience, etc.). Usually, it is over-contact rather than just contact, which will cause the core column to be ground to a height (or grinding amount) exceeding the preset value even if the subsequent grinding wheel feed is very precise. This will also lead to poor consistency of the air gap of ferrite cores in different batches. Summary of the Invention
[0004] This invention provides a magnetic core air gap processing method, a magnetic core air gap processing model training method, an apparatus, and an electronic device to at least solve one of the above-mentioned technical problems.
[0005] In a first aspect, embodiments of the present invention provide a method for machining the air gap of a magnetic core, comprising the following steps:
[0006] The magnetic core is clamped on a grinding machine. The magnetic core has a core center and a core edge. The core edge is arranged around the core center and is spaced apart from the core center.
[0007] The edges and central column of the magnetic core are ground once using a grinding wheel, with a grinding amount of ≤3 micrometers. The grinding wheel is kept in position after grinding.
[0008] The grinding wheel is used to perform secondary grinding on the central column of the magnetic core, creating a preset height difference between the central column and the edge of the magnetic core, so as to form an air gap between them.
[0009] In some embodiments of the present invention, the diameter of the grinding wheel is smaller than the diameter of the edge of the magnetic core, so that it can perform secondary grinding on the central column of the magnetic core separately.
[0010] In some embodiments of the present invention, the diameter of the grinding wheel is larger than the diameter of the magnetic core post, so that it can make full contact with the magnetic core post.
[0011] In some embodiments of the present invention, the step of grinding the edge of the magnetic core and the central column of the magnetic core with a grinding wheel includes: moving the grinding wheel to grind the edge of the magnetic core and the central column of the magnetic core until the edge of the magnetic core and the central column of the magnetic core are ground to a preset height.
[0012] In some embodiments of the present invention, the step of grinding the edge of the magnetic core and the central column of the magnetic core with a grinding wheel includes: moving the magnetic core so that the grinding wheel grinds the edge of the magnetic core and the central column of the magnetic core until the edge of the magnetic core and the central column of the magnetic core are ground to a preset height.
[0013] In some embodiments of the present invention, the secondary grinding of the magnetic core column using the grinding wheel includes: horizontally moving the grinding wheel, aligning the grinding wheel with the magnetic core column, and grinding the magnetic core column to form a preset height difference with the edge of the magnetic core.
[0014] In some embodiments of the present invention, the secondary grinding of the magnetic core column using the grinding wheel includes: horizontally moving the magnetic core, aligning the magnetic core column with the grinding wheel, and grinding the magnetic core column until a preset height difference is formed between it and the edge of the magnetic core.
[0015] In a second aspect, embodiments of the present invention provide an electronic device comprising: at least one processor, and a memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform any of the above-described magnetic core air gap processing methods of the present invention.
[0016] Thirdly, embodiments of the present invention provide a storage medium storing one or more programs including execution instructions, which can be read and executed by electronic devices (including but not limited to computers, servers, or network devices) to perform any of the above-described magnetic core air gap processing methods of the present invention.
[0017] Fourthly, embodiments of the present invention also provide a computer program product, the computer program product including a computer program stored on a storage medium, the computer program including program instructions, which, when executed by a computer, cause the computer to perform any of the above-described magnetic core air gap processing methods.
[0018] The magnetic core air gap processing method provided by this invention can eliminate minor errors present in the core's central column and edge at the time of manufacture through a single grinding process, ensuring a high degree of consistency between them. Furthermore, after the first grinding, the grinding wheel remains in the ground position, while at the start of the second grinding, the grinding wheel is in precise contact with the core's central column. This second grinding process accurately creates a predetermined height difference between the core's central column and edge (i.e., accurately forms the magnetic core air gap). This method only requires one clamping of the magnetic core, effectively avoiding errors caused by multiple clamping and disassembly processes. Moreover, using the same grinding wheel for the second grinding also avoids errors associated with changing the grinding wheel, thereby improving the accuracy of the magnetic core air gap formation. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A flowchart of a magnetic core air gap processing method provided in an embodiment of the present invention;
[0021] Figure 2 This is a schematic diagram of the magnetic core structure;
[0022] Figure 3 This is a schematic diagram of an electronic device including a magnetic core air gap processing method according to an embodiment of the present invention. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0024] Please refer to Figure 1 and 2 As shown, an embodiment of the present invention provides a method for machining the air gap of a magnetic core, including the following steps:
[0025] S101: The magnetic core is clamped on the grinding machine. The magnetic core has a core center column 10 and a core edge 20. The core edge 20 is arranged around the core center column 10 and is spaced apart from the core center column 10.
[0026] S102: Use a grinding wheel to grind the magnetic core edge 20 and the magnetic core central column 10 once. The grinding amount is ≤3 micrometers. Keep the grinding wheel in position after grinding.
[0027] S103: Use a grinding wheel to perform secondary grinding on the magnetic core column 10, creating a preset height difference between the magnetic core column 10 and the magnetic core edge 20, so as to form a magnetic core air gap between the two.
[0028] In this embodiment, the factory supply standard for the magnetic core is that the heights of the core pillar 10 and the core edge 20 are consistent (though slight errors may exist in practice). First, the magnetic core is clamped onto a grinding machine. The grinding wheel is moved above the magnetic core until its bottom surface is just in contact with the surface of the core pillar 10 or the core edge 20 (visually estimated contact). The downward feed of the grinding wheel is set to 3 micrometers. The grinding machine control system controls the grinding wheel to rotate at high speed, performing a first grinding of the core edge 20 and the core pillar 10. The grinding wheel is then held at this height. Next, the downward feed of the grinding wheel is set (e.g., 2 mm), and the core pillar 10 is ground a second time. This creates a preset height difference (i.e., a 2 mm height difference, the same as the downward feed of the grinding wheel) between the core pillar 10 and the core edge 20, forming an air gap between them.
[0029] Those skilled in the art should understand that, during the first grinding, although it is necessary to visually ensure that the grinding wheel just contacts the core post 10 or the core edge 20, the actual grinding amount may be slightly less than or greater than 3 micrometers, but this does not affect the accuracy and consistency of generating a preset height difference between the core post 10 and the core edge 20 through subsequent secondary grinding.
[0030] In fact, a single grinding process can eliminate the minor errors that existed in the core pillar 10 and the core edge 20 at the time of manufacture, making them highly consistent. Furthermore, after the first grinding, the grinding wheel remains in the position after grinding, ensuring that the grinding wheel is in perfect contact with the core pillar 10 at the start of the second grinding. Through the second grinding, a preset height difference can be accurately generated between the core pillar 10 and the core edge 20 (i.e., accurately forming the core air gap).
[0031] The magnetic core air gap processing method provided in this embodiment only requires one clamping of the magnetic core, which can effectively avoid the errors caused by multiple clamping and disassembly. Furthermore, the use of the same grinding wheel for secondary grinding also avoids the errors caused by changing the grinding wheel, thereby improving the forming accuracy of the magnetic core air gap.
[0032] In some alternative embodiments, the diameter of the grinding wheel is smaller than the diameter D of the magnetic core edge 20, so that it can perform secondary grinding on the magnetic core column 10 separately.
[0033] In some alternative embodiments, the diameter of the grinding wheel is larger than the diameter d of the magnetic core post 10 so that it can make full contact with the magnetic core post 10.
[0034] In some optional embodiments, the step of grinding the magnetic core edge 20 and the magnetic core column 10 with a grinding wheel includes: moving the grinding wheel to grind the magnetic core edge 20 and the magnetic core column 10 until the magnetic core edge 20 and the magnetic core column 10 are ground to a preset height.
[0035] In this embodiment, the magnetic core is clamped on a grinding machine, and the controller controls the movement and rotation of the grinding wheel to grind the magnetic core edge 20 and the magnetic core central column 10 in sequence, or to grind the magnetic core edge 20 and the magnetic core central column 10 according to a preset sequence / track.
[0036] In some optional embodiments, the step of grinding the magnetic core edge 20 and the magnetic core central column 10 with a grinding wheel includes: moving the magnetic core to allow the grinding wheel to grind the magnetic core edge 20 and the magnetic core central column 10 until the magnetic core edge 20 and the magnetic core central column 10 are ground to a preset height.
[0037] In this embodiment, the magnetic core is clamped on a grinding machine, and the controller controls the rotation of the grinding wheel and the movement of the magnetic core to grind the edge 20 and the central column 10 of the magnetic core in sequence, or to grind the edge 20 and the central column 10 of the magnetic core according to a preset sequence / track.
[0038] In some optional embodiments, the secondary grinding of the magnetic core column 10 using a grinding wheel includes: moving the grinding wheel horizontally, aligning the grinding wheel with the magnetic core column 10, and grinding the magnetic core column 10 until a preset height difference is formed between it and the magnetic core edge 20.
[0039] In some optional embodiments, the secondary grinding of the magnetic core post using a grinding wheel includes: moving the magnetic core horizontally, aligning the magnetic core post 10 with the grinding wheel, and grinding the magnetic core post 10 until a preset height difference is formed between it and the magnetic core edge 20.
[0040] In other embodiments, the present invention also provides a non-volatile computer storage medium storing computer-executable instructions that can execute the magnetic core air gap machining method in any of the above method embodiments.
[0041] In one embodiment, the non-volatile computer storage medium of the present invention stores computer-executable instructions, which are configured as follows:
[0042] S101: The magnetic core is clamped on the grinding machine. The magnetic core has a core center column 10 and a core edge 20. The core edge 20 is arranged around the core center column 10 and is spaced apart from the core center column 10.
[0043] S102: Use a grinding wheel to grind the magnetic core edge 20 and the magnetic core central column 10 once. The grinding amount is ≤3 micrometers. Keep the grinding wheel in position after grinding.
[0044] S103: Use a grinding wheel to perform secondary grinding on the magnetic core column 10, creating a preset height difference between the magnetic core column 10 and the magnetic core edge 20, so as to form a magnetic core air gap between the two.
[0045] Non-volatile computer-readable storage media may include a stored program area and a stored data area, wherein the stored program area may store an operating system and an application program required for at least one function; the stored data area may store data created based on the use of the core air-gap machining apparatus, etc. Furthermore, the non-volatile computer-readable storage medium may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, the non-volatile computer-readable storage medium may optionally include memory remotely located relative to the processor, and these remote memories may be connected to the core air-gap machining apparatus via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
[0046] This invention also provides a computer program product, which includes a computer program stored on a non-volatile computer-readable storage medium. The computer program includes program instructions, which, when executed by a computer, cause the computer to perform any of the above-described magnetic core air gap processing methods.
[0047] Figure 3 This is a schematic diagram of the structure of the electronic device provided in the embodiment of the present invention, such as... Figure 3 As shown, the device includes one or more processors 310 and a memory 320. Figure 3 Taking a processor 310 as an example, the equipment for the magnetic core air gap machining method may further include an input device 330 and an output device 340. The processor 310, memory 320, input device 330, and output device 340 can be connected via a bus or other means. Figure 3 Taking a bus connection as an example, the memory 320 is the aforementioned non-volatile computer-readable storage medium. The processor 310 executes various server functions and data processing by running non-volatile software programs, instructions, and modules stored in the memory 320, thereby implementing the magnetic core air gap machining method described in the above embodiment. The input device 330 can receive input digital or character information and generate key signal inputs related to user settings and function control of the communication compensation device. The output device 340 may include a display screen or other display device.
[0048] The above-described product can execute the method provided in the embodiments of the present invention, and has the corresponding functional modules and beneficial effects for executing the method. Technical details not described in detail in this embodiment can be found in the method provided in the embodiments of the present invention.
[0049] In one embodiment, the above-described electronic device is applied in a magnetic core air gap machining apparatus, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to:
[0050] The magnetic core is clamped on a grinding machine. The magnetic core has a core center 10 and a core edge 20. The core edge 20 is arranged around the core center 10 and is spaced apart from the core center 10.
[0051] The magnetic core edge 20 and the magnetic core column 10 are ground once using a grinding wheel. The grinding amount is ≤3 micrometers. The grinding wheel is kept at a preset height after grinding.
[0052] The magnetic core column 10 is ground a second time using a grinding wheel to create a preset height difference between the magnetic core column 10 and the magnetic core edge 20, so as to form a magnetic core air gap between the two.
[0053] The electronic devices described in this application exist in various forms, including but not limited to:
[0054] (1) Mobile communication devices: These devices are characterized by their mobile communication capabilities and primarily aim to provide voice and data communication. These terminals include: smartphones (e.g., iPhones), multimedia phones, feature phones, and low-end phones, etc.
[0055] (2) Ultra-mobile personal computer devices: These devices fall under the category of personal computers, possessing computing and processing capabilities, and generally also have mobile internet access features. These terminals include PDAs, MIDs, and UMPCs, such as the iPad.
[0056] (3) Portable entertainment devices: These devices can display and play multimedia content. This category includes: audio and video players (such as iPods), handheld game consoles, e-books, as well as smart toys and portable car navigation devices.
[0057] (4) Server: A device that provides computing services. The components of a server include a processor, hard disk, memory, system bus, etc. Servers are similar to general computer architectures, but because they need to provide highly reliable services, they have higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.
[0058] (5) Other electronic devices with data interaction functions.
[0059] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0060] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.
[0061] In the description of this specification, the references to "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0062] In this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A magnetic core air gap machining method characterized by, Including the following steps: The magnetic core is clamped on a grinding machine. The magnetic core has a core center and a core edge. The core edge is arranged around the core center and is spaced apart from the core center. The edge of the magnetic core and the central column of the magnetic core are ground once using a grinding wheel to make the edge of the magnetic core and the central column of the magnetic core have the same height. The grinding amount is ≤3 micrometers. The grinding wheel is kept at this height after grinding to ensure that the grinding wheel is just in contact with the central column of the magnetic core when the second grinding begins. The grinding wheel is used to perform secondary grinding on the magnetic core column, creating a preset height difference between the magnetic core column and the magnetic core edge, so as to form a magnetic core air gap between them. The same grinding wheel is used for both primary and secondary grinding.
2. The method for machining the air gap of a magnetic core according to claim 1, characterized in that: The diameter of the grinding wheel is smaller than the diameter of the edge of the magnetic core, so that it can perform secondary grinding on the central column of the magnetic core separately.
3. The method for processing the air gap of a magnetic core according to claim 2, characterized in that: The diameter of the grinding wheel is larger than the diameter of the magnetic core column so that it can make full contact with the magnetic core column.
4. The core gap machining method of claim 1 wherein, The step of grinding the edges of the magnetic core and the central column of the magnetic core using a grinding wheel includes: The grinding wheel is moved to grind the edge of the magnetic core and the central column of the magnetic core until the edge of the magnetic core and the central column of the magnetic core are ground to a preset height.
5. The core gap machining method of claim 1 wherein, The step of grinding the edges of the magnetic core and the central column of the magnetic core using a grinding wheel includes: The magnetic core is moved so that the grinding wheel grinds the edges of the magnetic core and the central column of the magnetic core until the edges of the magnetic core and the central column of the magnetic core are ground to a preset height.
6. A core gap machining method as defined in claim 1, wherein, The secondary grinding of the magnetic core cylinder using the grinding wheel includes: The grinding wheel is moved horizontally, and after the grinding wheel is aligned with the central column of the magnetic core, the central column of the magnetic core is ground to form a preset height difference with the edge of the magnetic core.
7. A core gap machining method as defined in claim 1, wherein, The secondary grinding of the magnetic core cylinder using the grinding wheel includes: The magnetic core is moved horizontally, and after the central column of the magnetic core is aligned with the grinding wheel, the central column of the magnetic core is ground until a preset height difference is formed between it and the edge of the magnetic core.
8. An electronic device comprising: At least one processor, and a memory communicatively connected to the at least one processor, wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the steps of the method according to any one of claims 1 to 7.
9. A storage medium having stored thereon a computer program, characterized in that When the program is executed by the processor, it implements the steps of the method according to any one of claims 1 to 7.