Magnetic force test auxiliary device

Abstract

The utility model discloses an auxiliary device for a magnetic force test. The auxiliary device comprises a probe bracket, a plurality of probes, a carrier and a signal change-over switch, the output end of the signal change-over switch is used for being in signal connection with a magnetic signal acquisition end of a magnetic detector, and the input end of the signal change-over switch is used for being in signal connection with the probes respectively; the probe bracket is used for fixing the probe; the carrier is located above the probe support and used for placing a to-be-tested product, and the probe can penetrate through the carrier to test the to-be-tested product. The technical scheme of the utility model aims to improve the test efficiency and reduce the labor intensity of testers.

Description

Technical Field

[0001] This utility model relates to the field of magnetic force testing equipment technology, and in particular to a magnetic force testing auxiliary device. Background Technology

[0002] In the quality inspection of magnetic products, it is usually necessary to test the strength and polarity of the magnetic force to ensure that the product meets the requirements of quality production. Current magnetic testing methods typically use a magnetic force analyzer to inspect each magnetic component on the product individually. Furthermore, each magnetic force analyzer is equipped with only one probe, requiring the tester to constantly move the probe to test each component. This process leads to high labor intensity for the testers and results in low accuracy and efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a magnetic force testing auxiliary device, which aims to improve testing efficiency and reduce the labor intensity of testing personnel.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A magnetic force testing auxiliary device includes a probe bracket, multiple probes, a carrier, and a signal switching switch;

[0006] The output terminal of the signal switching switch is used to connect the magnetic signal acquisition terminal of the magnetic force detector, and the input terminal of the signal switching switch is used to connect the probes respectively.

[0007] The probe bracket is used to fix the probe;

[0008] The carrier is located above the probe holder and is used to place the product under test. The probe can test the product under test through the carrier.

[0009] In one embodiment, the carrier has a plurality of through-holes through which the probe can test the product under test within the carrier.

[0010] In one embodiment, a plastic component is disposed on top of the vehicle.

[0011] In one embodiment, a photoelectric switch is also included, and the carrier further has a clearance hole, the photoelectric switch being located in the clearance hole and fixedly connected to the probe bracket.

[0012] In one embodiment, the carrier has a storage slot, and the storage slot is provided with a foolproof structure.

[0013] In one embodiment, the probe bracket has multiple mounting holes with the same spacing between adjacent mounting holes. The probe is disposed in the mounting holes and fixedly connected to the probe bracket by screws.

[0014] In one embodiment, a control board is also included, the probe bracket is fixed to the lower surface of the control board, and the carrier is mounted on the upper surface of the control board.

[0015] In one embodiment, it also includes an I / O module and a test result output device;

[0016] The I / O modules are connected to the external control system and the test result output device, respectively; the test result output device includes a signal indicator light, which is mounted on the control board.

[0017] In one embodiment, the test result output device further includes a buzzer and a display device;

[0018] The indicator light and the buzzer are used to indicate the test results of the product under test, and the display device is used to display the specific test data of each probe.

[0019] In one embodiment, a bakelite box is also included, which is hinged to the control panel and serves to support the control panel.

[0020] Compared with existing technologies, this utility model has the following advantages: The magnetic testing auxiliary device proposed in this utility model, compared with the existing technology which uses a probe on a single magnetic detector to test the magnetic position of a product one by one, achieves batch testing. Compared with existing technologies, this solution improves testing efficiency and reduces the labor intensity of testing personnel. Specifically, this solution includes a probe bracket, multiple probes, a carrier, and a signal switching switch. The output of the signal switching switch is used to connect to the magnetic signal acquisition end of the magnetic detector, and the input of the signal switching switch is used to connect to the probes respectively. The probe bracket is used to fix the probes. Furthermore, the position of each probe relative to the probe bracket can be flexibly set according to the needs of the product under test. The carrier is located above the probe bracket and is used to place the product under test. The probes can test the product under test through the carrier. When testing the magnetism of the product under test, the tester only needs to place the product under test in the carrier and wait a moment to complete the multi-point test on the product. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 AA-direction cross section;

[0025] Figure 3 This is a reference diagram showing the usage state of an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram illustrating the working principle of this utility model;

[0027] Illustration: 100, Magnetic force testing auxiliary device;

[0028] 110. Probe bracket; 110a. Mounting hole; 120. Probe;

[0029] 130. Vehicle; 130a. Through hole; 130b. Clearance hole; 130c. Storage slot; 132. Foolproof structure;

[0030] 140. Signal switching switch; 150. Control board; 160. I / O module;

[0031] 170. Test result output device; 171. Signal indicator light; 172. Buzzer; 180. Bakelite box; 190. Photoelectric switch;

[0032] 200. Magnetic force tester; 300. External control system. Detailed Implementation

[0033] To make the technical objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] This utility model provides a magnetic force testing auxiliary device 100.

[0037] Please see Figures 1 to 4 In one embodiment of the present invention, the magnetic force testing auxiliary device 100 includes a probe bracket 110, multiple probes 120, a carrier 130, and a signal switching switch 140.

[0038] The output terminal of the signal switching switch 140 is used to connect the magnetic signal acquisition terminal of the magnetic force detector, and the input terminal of the signal switching switch 140 is used to connect the probe 120 to the probe respectively.

[0039] The probe bracket 110 is used to fix the probe 120;

[0040] The carrier 130 is located above the probe bracket 110 and is used to place the product under test (not shown). The probe 120 can test the product under test through the carrier 130.

[0041] It is understood that the magnetic force testing auxiliary device 100 proposed in this utility model, compared with the prior art which uses a probe on a single magnetic force detector to detect the magnetic position of a product one by one, achieves batch testing. Compared with the prior art, this solution improves testing efficiency and reduces the labor intensity of testing personnel. Specifically, this solution includes a probe bracket 110, multiple probes 120, a carrier 130, and a signal switching switch 140. The output of the signal switching switch 140 is used to connect to the magnetic signal acquisition end of the magnetic force detector, and the input of the signal switching switch 140 is used to connect to the probes 120 respectively. The probe bracket 110 is used to fix the probes 120. Furthermore, the position of each probe 120 relative to the probe bracket 110 can be flexibly set according to the needs of the product to be tested. The carrier 130 is located above the probe bracket 110 and is used to place the product to be tested. The probes 120 can test the product to be tested through the carrier 130. When testing the magnetism of a product under test, the tester only needs to place the product under test inside the carrier 130 and wait a moment to complete the multi-point test on the product.

[0042] Therefore, the present invention improves testing efficiency and reduces the labor intensity of testing personnel.

[0043] It should also be noted that the specific shape of the carrier 130 can be flexibly set according to the external shape of the product to be tested. When it is necessary to test other products, the carrier 130 with a different shape can be selected to further improve the testing efficiency.

[0044] It should also be noted that the product under test usually has multiple magnetic components. The purpose of this technical solution is to sequentially test the magnetic strength and magnetic poles of multiple magnetic components on the product under test.

[0045] Optionally, there can be multiple products under test. If the number of probes 120 meets the testing requirements, multiple products under test can also be placed on the carrier 130 at the same time, thereby improving testing efficiency.

[0046] Therefore, the technical solution of this utility model is mainly applicable to the testing of multi-magnet products such as earphone cases and magnetic motherboards, thereby improving the efficiency and quality of factories and realizing large-scale production.

[0047] Optionally, the signal switching switch 140 is a multi-function multiplexer (MUX) or a relay (SSR).

[0048] Please see Figure 1 and Figure 2In a specific embodiment, the carrier 130 is formed with a plurality of through holes 130a, through which the probe 120 can test the product under test inside the carrier 130.

[0049] It is understood that the via 130a allows the probe 120 to be closer to the product under test, thereby improving the test accuracy and the reliability of the test results.

[0050] Optionally, for ease of processing, the carrier 130 is made of antimagnetic metal material.

[0051] Furthermore, to prevent the metal material from scratching the test product, a plastic part (not shown) is provided on top of the carrier 130.

[0052] Optionally, the plastic part has a hole adapted to the through-hole 130a so that the probe 120 can be closer to the product under test.

[0053] Optionally, the magnetic force tester 200 is a DC magnetic force tester.

[0054] Please see Figure 2 and Figure 3 In a specific embodiment, the magnetic force testing auxiliary device 100 further includes a photoelectric switch 190, and the carrier 130 also forms a clearance hole 130b. The photoelectric switch 190 is located in the clearance hole 130b and is fixedly connected to the probe bracket 110.

[0055] It is understood that when the product under test is located within the carrier 130, the photoelectric switch 190 can be used to identify the product under test.

[0056] Furthermore, when the photoelectric switch 190 is connected to the signal switching switch 140, the photoelectric switch 190 can be used to activate the signal switching switch 140 after identifying the product under test, so that the multiple probes 120 start working sequentially.

[0057] Therefore, the photoelectric switch 190 avoids the need for testers to operate the start signal switching switch 140 alone, further improving test efficiency and reducing the workload of testers.

[0058] Alternatively, the photoelectric switch 190 can be replaced with a pressure sensor.

[0059] Furthermore, the carrier 130 has a storage slot 130c, and a foolproof structure 132 is provided in the storage slot 130c. It can be understood that the storage slot 130c makes it easier to place the product to be tested; the foolproof structure 132 improves the accuracy of product placement.

[0060] Please see Figure 1 and Figure 2 In a specific embodiment, the probe bracket 110 has a plurality of mounting holes 110a, and the spacing between two adjacent mounting holes 110a is the same. The probe 120 is disposed in the mounting hole 110a and is fixedly connected to the probe bracket 110 by screws.

[0061] It is understandable that the equal spacing between two adjacent mounting holes 110a ensures that the spacing between adjacent probes 120 is the same. However, magnetic field interference between two adjacent probes 120 may cause errors in the detection results of each probe 120. Therefore, setting the equal spacing between adjacent probes 120 can reduce the problem of uneven error distribution among probes 120.

[0062] Furthermore, the probe 120 can be easily disassembled by using screws to fix it to the probe bracket 110.

[0063] Furthermore, the magnetic force testing auxiliary device 100 also includes a control board 150, with the probe bracket 110 fixed to the lower surface of the control board 150 and the carrier 130 mounted on the upper surface of the control board 150. Typically, when changing the product to be tested, it is necessary to replace the carrier 130 with one of different shapes or adjust and replace the probe bracket 110. Therefore, to facilitate the mounting and dismounting of the carrier 130 or the probe bracket 110, both the carrier 130 and the probe bracket 110 are mounted on the control board 150.

[0064] Please see Figure 1 and Figure 4 In a specific embodiment, the magnetic force testing auxiliary device 100 further includes an I / O module 160 and a test result output device 170;

[0065] The I / O module 160 is connected to the external control system 300 and the test result output device 170 respectively; the test result output device 170 includes a signal indicator 171, which is mounted on the control board 150.

[0066] It is understood that after the multiple probes 120 have completed the test in sequence, the magnetic force tester 200 can send the test results to the external control system 300, and after the I / O module 160 receives the test results, it outputs a feedback signal to the signal indicator 171.

[0067] Optionally, the number of signal indicator lights 171 is two, one for indicating that the test has passed and the other for indicating that the test has failed.

[0068] Optionally, the external control system 300 is a smart terminal, such as a computer, laptop, or mobile phone.

[0069] Optionally, to avoid visual fatigue caused by prolonged observation of the signal indicator light 171 by testers, the test result output device 170 also includes a buzzer 172 and a display device (not shown).

[0070] The indicator light 171 and the buzzer 172 are used to indicate the test results of the product under test, and the display device is used to display the specific test data of each probe 120.

[0071] Understandably, if testers hear a sound alarm from buzzer 172 indicating that the test result is not passed during the test, they can further confirm this by observing the display device.

[0072] It should also be noted that the magnetic force testing auxiliary device 100 further includes a bakelite box 180, which is hinged to the control board 150 and is used to support the control board 150.

[0073] Understandably, the bakelite box 180 is designed to prevent interference with the magnetic field of the test probe 120, thereby reducing the testing error of the probe 120. Furthermore, the hinged connection between the bakelite box 180 and the control board 150 facilitates maintenance and installation.

[0074] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A magnetic force testing auxiliary device, characterized in that, Includes probe bracket, multiple probes, carrier, and signal switching switch; The output terminal of the signal switching switch is used to connect the magnetic signal acquisition terminal of the magnetic force detector, and the input terminal of the signal switching switch is used to connect the probes respectively. The probe bracket is used to fix the probe; The carrier is located above the probe holder and is used to place the product under test. The probe can test the product under test through the carrier.

2. The magnetic force testing auxiliary device according to claim 1, characterized in that, The carrier has multiple through-holes through which the probe can test the product under test inside the carrier.

3. The magnetic force testing auxiliary device according to claim 2, characterized in that, A plastic component is mounted on top of the vehicle.

4. The magnetic force testing auxiliary device according to claim 1, characterized in that, It also includes a photoelectric switch, and the carrier is further formed with a clearance hole, the photoelectric switch is located in the clearance hole and is fixedly connected to the probe bracket.

5. The magnetic force testing auxiliary device according to claim 4, characterized in that, The carrier has a storage slot, and the storage slot is equipped with a foolproof structure.

6. The magnetic force testing auxiliary device according to claim 1, characterized in that, The probe bracket has multiple mounting holes with the same spacing between adjacent mounting holes. The probe is placed in the mounting holes and fixedly connected to the probe bracket by screws.

7. The magnetic force testing auxiliary device according to any one of claims 1 to 6, characterized in that, It also includes a control board, with the probe bracket fixed to the lower surface of the control board and the carrier mounted on the upper surface of the control board.

8. The magnetic force testing auxiliary device according to claim 7, characterized in that, It also includes I / O modules and test result output devices; The I / O modules are connected to the external control system and the test result output device, respectively; the test result output device includes a signal indicator light, which is mounted on the control board.

9. The magnetic force testing auxiliary device according to claim 8, characterized in that, The test result output device also includes a buzzer and a display device; The indicator light and the buzzer are used to indicate the test results of the product under test, and the display device is used to display the specific test data of each probe.

10. The magnetic force testing auxiliary device according to claim 8, characterized in that, It also includes a bakelite box, which is hinged to the control panel and serves to support the control panel.

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