Panel magnet detection jig

Abstract

The utility model provides a panel magnet detection jig which comprises a jig fixing seat, a position detection plate and a polar direction detection plate, the position detection plate is fixed by the jig fixing seat, and a magnet groove is formed in the position detection plate. The magnet groove is matched with a magnet of the to-be-detected plate, a magnet acupoint is arranged on the polarity detection plate, and a detection magnet is arranged in the magnet acupoint; and the number and the positions of the magnet grooves correspond to those of the magnets and the magnet acupoints of the to-be-detected board. According to the utility model, the different detection plates and the base form a drawer type structure, and the polar direction detection plate supports the to-be-detected plate and pushes the to-be-detected plate into a detection position, so that the positions and the magnetic pole directions of a plurality of magnets of the to-be-detected plate can be synchronously detected, and the problem of low detection efficiency caused by the fact that the positions and the polar directions of the magnets of the to-be-detected plate cannot be synchronously detected by manual detection is solved; and the workload of operators is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of test fixtures, in particular to a panel magnet detection fixture. Background Art

[0002] At present, most products with opening and closing functions and fixing devices in the market are equipped with magnetic structures. For example, the sleep function of the opening and closing mechanism of a notebook depends on the attraction between the magnetic area in the upper cover and the corresponding magnetic area in another part, and the magnetic switch is used to sense the magnetic field to realize subsequent functions such as sleep and startup; the bases of various fixing devices use magnetic adsorption bases to be fixed on metal structures. It can be seen that the position and pole direction of the magnets in the magnetic structure are crucial for whether the corresponding functions can be realized. Therefore, it is necessary to detect the position and pole direction of the magnets on the panel to ensure the integrity of the product functions.

[0003] In the prior art, for example, Chinese Utility Model Patent No. CN211453923U discloses a magnetic pole detection fixture, which includes an electric control box, a magnetic pole detection probe, an alarm horn, and an indicator light. The magnetic pole detection probe is used to detect the magnetism of the placed product. Since the bottom of the product corresponds to the magnet, as long as the magnetic polarity of the magnet in one position is incorrect, the fixture will emit an alarm sound, and at the same time, the indicator light will display the placement status, with high accuracy, but it cannot detect the pole direction simultaneously, and the detection content is single.

[0004] Chinese Utility Model Patent No. CN208421204U discloses a magnet magnetic pole detection device, which includes a Hall element for detecting the magnetic poles of magnets, a Hall element fixing plate, a positioning component, and a fixture plate. By arranging Hall elements corresponding to the number and position of the magnets to be detected on the same fixture plate, each Hall element detects one magnet magnetic pole, which is convenient, fast, and has high working efficiency, and can adapt to the detection of a large number of magnet magnetic poles. However, the disadvantage is that it requires manual setting of the element positions and lacks the function of detecting the magnet positions.

[0005] Therefore, it is necessary to improve the existing magnetic detection fixtures to overcome the defects of the prior art. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a panel magnet detection fixture to solve the problems of relying on manual visual inspection of the magnet positions, detecting the pole direction of each magnet separately, being unable to detect the magnet positions and pole directions simultaneously, and having low detection efficiency.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A panel magnet detection jig comprises a jig fixing seat, a position detection plate, and a polarity detection plate; the position detection plate is arranged on the jig fixing seat, the polarity detection plate is movably arranged between the position detection plate and the jig fixing seat, and the position detection plate is provided with a test position for placing a panel to be detected;

[0009] The position detection plate is provided with a magnet slot, which matches the magnet of the plate to be detected; the polarity detection plate is provided with a magnet point, and the detection magnet is provided in the magnet point; the magnet slot corresponds to the magnet on the plate to be detected and the magnet point one by one.

[0010] Specifically, the position detection plate is arranged in parallel on the fixture fixing seat, and a storage area is formed between the position detection plate and the fixture fixing seat, and the polarity detection plate is located in the storage area. Before testing, the polarity detection plate needs to be pulled out from under the position detection plate, and the plate to be tested is partially placed flat on the position detection plate and partially placed flat on the polarity detection plate according to the corresponding relationship between the magnet and the magnet slot on it, to ensure that it will not get stuck when pushed in, and then the polarity detection plate is pushed in and parked at the position corresponding to the magnet point and the magnet slot. If the magnet position and magnetic pole direction of the plate to be tested meet the standards, the magnet will enter the magnet slot completely and the panel will sink; if any of the magnet position and polarity of the plate to be tested does not meet the standards, the magnet will not be able to enter the magnet slot completely, and the panel will not sink or will sink partially, and the changes visible to the naked eye are used as the basis for judgment to complete the test.

[0011] In the above-mentioned panel magnet detection jig, the polar direction detection plate includes a detection part and a push-pull part, the push-pull part is vertically fixed to the edge of the detection part, and the push-pull part protrudes upward and outward from the surface of the detection part. Specifically, the push-pull part protrudes upward so that its side can abut against the board to be detected and push it into the test position, and it is perpendicular to the detection part to avoid the board to be detected from sliding at the abutting position due to the inclination angle between the push-pull part and the detection part during the pushing process, thereby affecting the detection.

[0012] In the above panel magnet detection jig, the magnet acupoint is located at the bottom of the detection part. Specifically, the magnet acupoint is located at the bottom of the detection part, which is beneficial for the detection magnet to avoid falling off from the acupoint due to attraction with the magnet on the panel to be detected during the detection process after installation. Instead, it can be more and more firmly assembled in the magnet acupoint under the action of upward attraction during the detection process.

[0013] In the above-mentioned panel magnet detection fixture, the magnetic pole direction of the bottom of the detection magnet is the same as the magnetic pole direction of the bottom of the magnet of the panel to be detected. Specifically, the magnetic pole direction of the bottom of the detection magnet corresponds to the magnetic pole direction of the bottom of the magnet of the panel to be detected, ensuring that each detection magnet can be magnetically attracted to the magnet at the corresponding position of the panel to be detected.

[0014] The above-mentioned panel magnet detection fixture further includes a limiting member. At least two limiting members are provided. An accommodating area is formed between the position detection plate and the fixture fixing seat, and the pole direction detection plate is movably arranged in the accommodating area.

[0015] One side of the accommodating area is provided with an opening; the limiting members are arranged on two opposite sides of the opening. Specifically, in order to smoothly perform the detection, the limiting members are added to limit the position of the detection part and its movement in the accommodating area, ensure that the detection magnet on the detection part can move to a position corresponding to the magnet slot, and at the same time accurately make the panel to be detected enter the detection position.

[0016] The above-mentioned panel magnet detection fixture further includes two U-shaped notches; the two U-shaped notches correspond to each other, and the two U-shaped notches penetrate through the fixture fixing seat and the position detection plate along the height direction of the fixture fixing seat and the position detection plate. It can be understood that opening the notches can reduce the amount of materials used, and thus reduce the cost.

[0017] In the above-mentioned panel magnet detection fixture, the test position includes a plurality of limiting protrusions arranged on the position detection plate, and the limiting protrusions are located on one side of the magnet slot. Specifically, the limiting protrusions are distributed on the edge of the position detection plate and can be located on two opposite sides of the opening of the accommodating area, and are used to limit the movement track of the plate to be detected so that it can accurately enter the test position.

[0018] It should be noted that in the above solution, the number and positions of the magnet slots and magnet positions on the position detection plate and the pole direction detection plate are all set according to the requirements of the panel that meets the product production standard, and the pole direction setting of the detection magnet is also correspondingly set according to its standard requirements.

[0019] The beneficial effects of the present invention at least include:

[0020] The detection fixture provided by the present invention adopts a detection plate with two functions. The position detection plate is provided with magnet slots, and the pole direction detection plate is provided with detection magnets, which respectively correspond to the position and pole direction of the detection magnet. Different detection plates are arranged in parallel with the fixture fixing seat to form a drawer-type structure. The pole direction detection plate supports the panel to be measured and pushes it into the detection position, and can synchronously detect the positions and magnetic pole directions of multiple magnets on the plate to be detected. The present invention changes the current process of manually detecting the pole direction of each magnet separately and visually judging the position of the magnet, reduces the labor intensity of the operator, and at the same time, compared with the existing technology of separately detecting the position and pole direction, has the advantages of reducing the detection steps, simplifying the process, and improving the detection efficiency. Description of the Drawings

[0021] Figure 1It is a three-dimensional view of the panel magnet detection fixture provided by the present utility model;

[0022] Figure 2 It is a schematic structural diagram when the detection part of the panel magnet detection fixture provided by the present utility model is drawn out;

[0023] Figure 3 It is a schematic diagram of the board to be detected;

[0024] Figure 4 It is a three-dimensional view of one side at the bottom of the pole direction detection board provided by the present utility model;

[0025] Figure 5 It is a schematic structural diagram when the board to be detected provided by the present utility model is placed on the panel magnet detection fixture of the present application.

[0026] Reference numerals:

[0027] 1. Fixture fixing base; 2. Position detection board; 3. Pole direction detection board; 4. Magnet groove; 5. Magnet acupoint; 6. Detection magnet; 7. Detection part; 8. Pushing and pulling part; 9. Limiting part; 10. Accommodating area; 11. U-shaped notch; 12. Testing position; 13. Limiting protrusion; 14. Board to be detected. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] As Figures 1 - 5 shown, this embodiment provides a panel magnet detection fixture, including a fixture fixing base 1, a position detection board 2, and a pole direction detection board 3; the position detection board 2 is arranged on the fixture fixing base 1, the pole direction detection board 3 is movably arranged between the position detection board 2 and the fixture fixing base 1, and the position detection board 2 is provided with a testing position 12 for placing the board to be detected;

[0031] A magnet groove 4 is arranged on the position detection board 2, and the magnet groove 4 is matched with the magnet on the board to be detected; a magnet acupoint 5 is arranged on the pole direction detection board 3, and a detection magnet 6 is arranged in the magnet acupoint 5; the magnet groove 4, the magnet on the board to be detected, and the magnet acupoint 5 correspond one by one. Further, the detection magnet 6 can be set as a permanent magnet to reduce the replacement times and extend the service life.

[0032] Specifically, the position detection plate 2 is superimposed on the fixture fixing base 1. The position detection plate 2 is fixed on the fixture fixing base 1, and an overhead area is left below it as the moving space for the pole direction detection plate 3. Specifically, screws can be used for relative fixation, and the two are fixed without movement. The pole direction detection plate 3 makes relative movement between the two.

[0033] Preferably, in this embodiment, the pole direction detection plate 3 includes a detection part 7 and a pushing and pulling part 8. The pushing and pulling part 8 is vertically fixed to the edge of the detection part 7, and the pushing and pulling part 8 protrudes outward and upward from the surface of the detection part 7. Specifically, the pushing and pulling part 8 protrudes upward so that the side facing the upper surface of the detection part 7 can abut against the plate to be detected 14 so as to push it into the detection position. Being perpendicular to the detection part 7 is to avoid relative sliding at the abutting position due to the inclination angle between the pushing and pulling part 8 and the detection part 7 during the pushing process, resulting in position deviation, and the plate to be detected 14 is not in the accurate detection position, affecting the detection result.

[0034] Preferably, in this embodiment, the magnet acupoint 5 is located at the bottom of the detection part 7. Specifically, the magnet acupoint 5 is opened according to the size of the detection magnet 6, which is beneficial to closely cooperate with the detection magnet 6 and be firmly combined together. And the shape of the magnet groove 4 can be set as a frustum of a pyramid with a narrower upper part and a wider lower part, and the lower end is wider as the opening, which is convenient for the installation of the detection magnet 6. The magnet acupoint 5 being located at the bottom of the detection part 7 is beneficial to avoid the detection magnet 6 falling off from the acupoint due to being attracted by the magnet on the plate to be detected during the detection process. Instead, during the detection process, it can be more firmly assembled in the magnet acupoint 5 after being subjected to an upward attractive force.

[0035] Preferably, in this embodiment, the magnetic pole direction at the bottom of the detection magnet 6 is the same as the magnetic pole direction at the bottom of the magnet on the plate to be detected. Specifically, the magnetic pole direction of the detection magnet 6 is set corresponding to the magnetic pole direction of the magnet on the plate to be detected. Here, the corresponding direction means in the same direction, and the N and S pole directions of the detection magnet 6 are set to be the same as those of the magnet on the plate to be detected, so that the N pole of the detection magnet 6 corresponds to the S pole of the magnet on the plate to be detected, and the S pole of the detection magnet 6 corresponds to the N pole of the magnet on the plate to be detected. For example, if the bottom of the magnet on the plate to be detected is the N pole, then the bottom of the detection magnet 6 is also the N pole, ensuring that each detection magnet 6 can be magnetically attracted to the magnet at the corresponding position on the plate to be detected.

[0036] Preferably, in this embodiment, it further includes a limiting member 9. There are at least two limiting members 9. An accommodating area 10 is formed between the position detection plate 2 and the fixture fixing base 1, and the pole direction detection plate 3 is movably arranged in the accommodating area 10;

[0037] One side of the accommodation area 10 is provided with an opening; the limiting members 9 are arranged on two sides opposite to the opening. Specifically, when there are two limiting members 9, they need to be arranged at the same end or symmetrically centered on both sides of the fixture fixing base 1. In order to smoothly perform the detection, the limiting members 9 are added to limit the position of the detection part 7 and its movement in the accommodation area 10, ensuring that the detection magnet 6 on the detection part 7 can move to a position corresponding to the magnet groove 4. Further, the height of the limiting member 9 is greater than the thickness of the detection part 7 and less than twice the thickness of the detection part 7, which not only ensures that the detection part 7 can move freely in the accommodation area 10 but also avoids too large a distance, resulting in too weak gravitational force between the magnets and inaccurate detection results.

[0038] Preferably, in this embodiment, it further includes two U-shaped notches 11; the two U-shaped notches 11 correspond to each other, and the two U-shaped notches 11 penetrate through the fixture fixing base 1 and the position detection plate 2 along the height direction of the fixture fixing base 1 and the position detection plate 2. It can be understood that opening the notches can reduce the amount of material used, thereby reducing costs, and at the same time, it is easy to clean the impurities in the accommodation area 10 that affect the movement of the detection part 7.

[0039] Preferably, in this embodiment, the test position 12 includes a plurality of limiting protrusions 13 provided on the position detection plate 2, and the limiting protrusions 13 are located on one side of the magnet groove 4. Specifically, the limiting protrusions 13 are distributed on the edge of the position detection plate 2 and can be located on two sides opposite to the opening of the accommodation area 10, and are used to limit the movement trajectory of the plate to be detected so that it can accurately enter the test position 12.

[0040] The detailed detection process is as follows: manually hold the pushing and pulling part 8 and pull out the detection part 7 from the accommodation area 10. After the detection part 7 is exposed, place the plate to be detected flat according to the direction of the magnet distribution with the magnet on the panel facing downwards, and keep a part of the plate to be detected on the position detection plate 2 and the other part above the detection part 7. The purpose is to avoid the edge of the plate to be detected touching the edge of the position detection plate 2 during the process of pushing the detection part 7, which may cause the plate to be detected to move backward and unable to enter the test position 12 for detection. Subsequently, hold the pushing and pulling part 8 again and push the detection part 7 into the accommodation area 10. The final position pushed in should be the test position 12 of the position detection plate 2. Since the magnet on the plate to be detected protrudes downward, if the position and magnetic pole direction of the magnet on the plate to be detected are consistent with the position of the magnet slot 4 on the position detection plate 2 and the direction of the magnet installed in the magnet acupoint 5 of the pole direction detection plate 3, then due to the principle of attraction between opposite poles of magnets, the magnet on the plate to be detected will sink downward into the magnet slot 4, visually showing that the measured panel as a whole sinks; if any one of the detection items of the magnet position and pole direction on the plate to be detected does not meet the standard, that is, when the magnet position on the plate to be detected does not meet the standard, it cannot fully enter the magnet slot 4, and when the magnetic pole direction does not meet the standard, it cannot fully enter the slot due to the repulsion between like poles of magnets. Visually, the measured panel shows partial sinking, and the operator can easily distinguish it by visual inspection. The corresponding positions of the above-mentioned magnets refer to the position of the magnet on the plate to be detected and the position of the magnet acupoint 5 set in the detection part 7, and the two positions correspond to each other.

[0041] It should be noted that in the above embodiment, the number and positions of the magnet slots 4 and magnet acupoints 5 on the position detection plate 2 and the pole direction detection plate 3 are set according to the requirements of the panel that meets the product production standard, and the pole direction setting of the detection magnet 6 is also set correspondingly according to its standard requirements.

[0042] Embodiment 2

[0043] In this embodiment, the fixture fixing seat 1, the position detection plate 2 and the pole direction detection plate 3 can be made of wood. The surfaces of the fixture fixing seat 1 in contact with the position detection plate 2 and the pole direction detection plate 3 are all smooth-treated. After deburring, the coating film-forming technology can be used to make the surface of the plate smooth and flat. In addition, the position detection plate 2 and the fixture fixing seat 1, and the detection part 7 and the pushing and pulling part 8 can be connected with adhesives such as glue. Compared with the metal material, using wood can reduce the cost. The relatively soft wood makes it convenient to open the magnet slots 4 and magnet acupoints 5, and at the same time, the material selection range is wider, without having to consider whether it will affect the magnet pole direction detection, such as some metals attracting magnets and causing unable to detect.

[0044] Embodiment 3

[0045] In this embodiment, the position detection plate 2 and the poloidal detection plate 3 can be in the shape of rectangular plates. Correspondingly, the fixture fixing seat 1 is also set as a cuboid. The rectangular plate has a large detection area, can adapt to the simultaneous detection of a relatively large number of magnets, and for the detection of most panel magnets on the current market, only different magnet slots 4 and magnet acupoints 5 need to be opened at different positions on the position detection plate 2 and the poloidal detection plate 3, and the plate material does not need to be replaced, which is beneficial to the batch replacement of the detection plates.

[0046] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A panel magnet detection jig, characterized in that: The jig fixing seat (1) comprises a position detection plate (2) and a polar direction detection plate (3); the position detection plate (2) is arranged on the jig fixing seat (1), the polar direction detection plate (3) is movably arranged between the position detection plate (2) and the jig fixing seat (1), and the position detection plate (2) is provided with a test position (12) for placing a board to be detected; The position detection plate (2) is provided with a magnet slot (4), and the magnet slot (4) matches the magnet of the plate to be detected; the polarity detection plate (3) is provided with a magnet point (5), and a detection magnet (6) is provided in the magnet point (5); the magnet slot (4) corresponds to the magnet on the plate to be detected and the magnet point (5) one by one.

2. A panel magnet detection jig according to claim 1, characterized in that: The polar direction detection plate (3) comprises a detection portion (7) and a push-pull portion (8), wherein the push-pull portion (8) is vertically fixed to the edge of the detection portion (7), and the push-pull portion (8) protrudes outwardly and upwardly from the surface of the detection portion (7).

3. A panel magnet detection jig according to claim 2, characterized in that: The magnet acupoint (5) is located at the bottom of the detection part (7).

4. A panel magnet detection jig according to claim 1, characterized in that: The direction of the magnetic poles at the bottom of the detection magnet (6) is the same as the direction of the magnetic poles at the bottom of the plate magnet to be detected.

5. The panel magnet detection jig according to claim 1, characterized in that: It also comprises a limiting member (9), at least two limiting members (9) are provided, a receiving area (10) is formed between the position detection plate (2) and the fixture fixing seat (1), and the polar direction detection plate (3) is movably arranged in the receiving area (10); An opening is provided on one side of the accommodating area (10); and the limiting members (9) are provided on two opposite sides of the opening.

6. A panel magnet detection jig according to claim 1, characterized in that: It also comprises a U-shaped notch (11), wherein two U-shaped notches (11) are provided; the two U-shaped notches (11) correspond to each other, and the two U-shaped notches (11) penetrate the jig fixing seat (1) and the position detection plate (2) along the height direction of the jig fixing seat (1) and the position detection plate (2).

7. A panel magnet detection jig according to claim 1, characterized in that: The test position (12) comprises a plurality of limiting protrusions (13) arranged on the position detection plate (2), and the limiting protrusions (13) are located on one side of the magnet slot (4).

Images