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CN-122017696-A - Meter magnetic full detection device and detection method

CN122017696ACN 122017696 ACN122017696 ACN 122017696ACN-122017696-A

Abstract

The application relates to a surface magnetic full detection device and a detection method, which relate to the technical field of magnetic material detection, and comprise a detection platform, wherein a plurality of detection points are arranged on the detection platform, each detection point corresponds to a detection unit, each detection point is provided with a positioning hole for inserting a magnet, the positioning holes can only be inserted with a single magnet, when the magnet is inserted into the positioning holes, the geometric center of the magnet is contacted with a detection induction point corresponding to the detection units, and the detection units are used for detecting the magnetic field intensity at the geometric center point of the magnet in the positioning holes by utilizing the detection induction points.

Inventors

  • ZHANG SHUN

Assignees

  • 苏州磁亿电子科技有限公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (8)

  1. 1. The surface magnetic full-detection device is characterized by comprising a detection platform (1), wherein a plurality of detection points (2) are arranged on the detection platform (1), each detection point (2) is corresponding to a detection unit (3), each detection point (2) is provided with a positioning hole (73) for inserting a magnet, the positioning holes (73) can only be inserted with a single magnet, when the magnet is inserted into the positioning holes (73), the geometric center of the magnet is contacted with a detection induction point corresponding to the detection units (3), and the detection units (3) are used for detecting the magnetic field intensity at the geometric center point of the magnet in the positioning holes (73) by utilizing the detection induction points.
  2. 2. The total surface magnetic inspection device according to claim 1, wherein each positioning hole (73) is further provided with a magnetic attraction piece (72) for magnetically attracting and fixing with a magnet.
  3. 3. The surface magnetic full detection device according to claim 1 or 2, wherein the detection platform (1) is provided with a guide groove (71) for inserting and sliding a magnet, the guide groove (71) is communicated with a plurality of positioning holes (73), and the opening direction of the guide groove (71) is satisfied that the magnet can be inserted into the positioning hole (73) communicated with the guide groove (71) in the process of inserting the guide groove (71) and sliding along the opening direction of the guide groove (71).
  4. 4. The total surface magnetic inspection device according to claim 1, wherein all the inspection units (3) are divided into a plurality of inspection groups in advance, all the inspection units (3) of the same inspection group are electrically connected to one central control unit (4) together, and all the central control units (4) are electrically connected to one main control unit (5) together; Each central control unit (4) is used for controlling the connected detection unit (3) to detect the magnet and acquiring and storing detection data obtained by detection, and the main control unit (5) is used for communicating with the central control unit (4) and acquiring the detection data stored by the central control unit (4) and analyzing the detection data to obtain a detection result and feeding back the detection result to a detector.
  5. 5. The surface magnetic full detection device according to claim 4, wherein the main control unit (5) is electrically connected with a man-machine interaction unit (6), and the main control unit is used for displaying detection results corresponding to all detection points (2) to a detector through the man-machine interaction unit (6); The detection platform (1) is provided with a state indicator (8) near each detection point (2), the state indicators (8) are electrically connected to the main control unit (5), and the main control unit (5) is used for feeding back detection results to detection personnel through controlling the display states of the state indicators (8).
  6. 6. The total surface magnetism detection device according to claim 5, wherein the man-machine interaction unit (6) is further configured to receive a correction instruction triggered by a detection personnel, and send the correction instruction to the main control unit (5), so that the main control unit (5) starts a correction flow to obtain a correction result; The man-machine interaction unit (6) is further used for receiving the guide information generated by the main control unit (5) in the correction flow and updating and feeding back the guide information to the detection personnel in real time, wherein the guide information is used for reminding the detection personnel to execute the guide information to complete the correction flow in a matching way, and the guide information at least comprises a function of reminding the detection personnel to put a magnet into a specified positioning hole (73); the main control unit (5) is used for correcting the detection data based on the correction result when the detection data stored in the central control unit (4) are acquired after the correction flow is completed, and then analyzing the corrected detection data to obtain the detection result.
  7. 7. The total surface magnetic inspection device according to claim 6, wherein the correction flow comprises: the main control unit (5) controls the man-machine interaction unit (6) to feed back guide information to the detection personnel, wherein the guide information prompts the detection personnel to put a standard magnet with a known accurate magnetic field intensity value into the designated positioning hole (73); The main control unit (5) is used for acquiring detection data of the magnet in the appointed positioning hole (73) from the central control unit (4), calculating a correction coefficient for the appointed positioning hole (73) based on a preset algorithm, and taking the correction coefficient as a correction result.
  8. 8. The surface magnetic full detection method is applied to the surface magnetic full detection device as claimed in claim 7, and is characterized by comprising the following steps: Inserting a plurality of magnets stacked together in the thickness direction into one end of a guide groove (71) and sliding along the length direction of the guide groove (71), wherein in the sliding process, when the magnet positioned at the lowest part moves to a positioning hole (73) communicated with the guide groove (71), the magnets are inserted into the positioning holes (73) under the action of self weight and the magnetic adsorption of a magnetic attraction piece (72), so that all the magnets are arranged in one-to-one correspondence with the positioning holes (73) communicated with the guide groove (71); the central control unit (4) controls the detection unit (3) to detect the magnetic field intensity of the geometric center point of the magnet in each positioning hole (73), so as to obtain and store detection data; The main control unit (5) is communicated with each central control unit (4) to acquire detection data of all detection points (2), and the main control unit (5) is used for comparing the detection data with a preset qualified data range after correcting the detection data based on correction coefficients calibrated in advance for each detection point (2) to finally acquire detection results of each magnet; The main control unit (5) controls the man-machine interaction unit (6) and/or the state indicator (8) to feed back the detection result to the detection personnel.

Description

Meter magnetic full detection device and detection method Technical Field The application relates to the technical field of magnetic material detection, in particular to a surface magnetic full detection device and a detection method Background In the production and quality control links of magnets (such as neodymium iron boron permanent magnets), the full detection of the magnetic field intensity of the center point of the surface of the magnets is a key step for ensuring the consistency of the performance of the products. Currently, conventional detection methods within the industry generally rely on hand-held gauss meters. The operator manually finds and aligns precisely the geometric center points of the radial surfaces of the individual magnets using the probes of the gauss meter, and then records the readings. However, the conventional manual detection method has the following inherent defects, which severely limit the detection efficiency and accuracy, particularly in the application scene of mass and full detection, because the manual alignment and measurement of single magnets are needed one by one, the detection of each magnet comprises a plurality of time-consuming links such as picking and placing, alignment, reading, recording and the like. When the daily detection amount is huge, the process becomes extremely heavy and slow, and the requirement of the modern automatic production line on efficient and beat detection cannot be met. And the accuracy of the measurement is highly dependent on the skill and responsibility of the operator. Subjective errors exist in the process of manually searching and aligning the geometric center point of the magnet, and measurement results can be fluctuated due to alignment deviation by different personnel or different operations of the same personnel, so that the judgment fairness and the consistency of product batches are affected. In summary, the prior art has the technical problems of low manual alignment efficiency, large error and incapability of realizing efficient detection. Disclosure of Invention In order to realize automatic, rapid and accurate batch detection of the magnetic field intensity of the center point of a plurality of magnets, the application provides a surface magnetic full detection device. In a first aspect, the present application provides a surface magnetic full detection device, including a detection platform, where the detection platform is provided with a plurality of detection points, each detection point corresponds to a detection unit, each detection point is provided with a positioning hole for inserting a magnet, the positioning hole can be inserted by only a single magnet, when the magnet is inserted into the positioning hole, the geometric center of the magnet contacts with a detection induction point corresponding to the detection unit, and the detection unit is configured to detect the magnetic field strength at the geometric center point of the magnet in the positioning hole by using the detection induction point. By adopting the technical scheme, the magnet is quickly, accurately and automatically aligned by the physical constraint of a mechanical structure (positioning hole). An operator can ensure that the geometric center of the magnet is automatically aligned with the detection point by putting the magnet into the acupoint, so that the time of manual visual observation and fine adjustment is saved. In addition, subjective errors and accidental errors caused by manual operation are eliminated, the measurement position of each magnet is ensured to be fixed and repeatable each time, and the consistency and comparability of measurement results are greatly improved. The structure of a plurality of detection points provides physical carriers and possibility for realizing parallel and synchronous detection of a plurality of magnets, and lays a foundation framework of the full detection device. Preferably, a magnetic attraction piece for magnetically attracting and fixing with the magnet is further arranged in each positioning hole. By adopting the technical scheme, the magnet is firmly adsorbed at the preset position by utilizing magnetic attraction, so that any micro movement of the magnet in the detection process is prevented, and the absolute stability of the measurement state is ensured. In the feeding process of the guide groove, after the magnets at the current acupoint are adsorbed and fixed, the magnets can be smoothly separated from the magnet pile at the upper part, so that the subsequent magnets can slide into the next locating acupoint, and the magnetic attraction piece (such as stainless iron) is used as a magnetic conductive material, so that the distribution of magnetic force lines can be improved, the magnetic field is more concentrated and stable at the induction point of the sensor, and the signal quality can be improved. Preferably, the detection platform is provided with a guide groove for the magnet to be