A device for simultaneous detection of different magnetic poles of a plurality of magnets

Abstract

This utility model belongs to the field of magnetic pole detection technology and discloses a device for simultaneously detecting multiple magnets with different magnetic poles. A product installation station is located in the middle of the upper part of the electrical box, and magnetic pole detection stations are located on both sides of the product installation station. Each magnetic pole detection station is fitted with a cover plate, and three detection magnets are slidably installed inside each cover plate. The end of each detection magnet facing the product is attracted to a magnet to be tested on the side of the product with opposite poles. A contact switch is installed on the electrical box at the other end of each detection magnet. The contact switch is electrically connected to the electrical box and is used to activate the contact switch when the magnet to be tested on the side of the product is installed incorrectly. The magnet to be tested pushes the detection magnet to slide and trigger the contact switch. After the contact switch is turned on, the electrical box sends a magnetic pole reversal signal feedback device. A return spring is also installed inside the cover plate to drive the detection magnet to slide towards the product. This utility model allows six magnets to be tested to be inspected at once, improving efficiency and reducing the possibility of misjudgment.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic pole detection technology, specifically relating to a device for simultaneously detecting different magnetic poles of multiple magnets. Background Technology

[0002] In the application of some frame (control) component products, there are often requirements for the magnetic poles of the magnets. For example, three magnets are set on both sides of the frame component, and the outward magnetic poles of the magnets are not exactly the same. In the production process of such frame components, it is often found that the magnetic poles of the magnets are installed in reverse, which leads to defects. Therefore, after the magnets of the frame component are installed, it is necessary to conduct random checks to confirm that the magnetic poles of the magnets are correctly oriented during installation.

[0003] The existing method for random inspection involves using magnets with SN markings to check the magnetic poles of the magnets at six locations on the product according to the drawing requirements. This method is inefficient and prone to misjudgment. Therefore, it is necessary to improve the random inspection method. Utility Model Content

[0004] The purpose of this invention is to provide a device for simultaneously detecting the different magnetic poles of multiple magnets, in order to solve the aforementioned problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for simultaneously detecting multiple magnets with different magnetic poles includes an electrical box equipped with six magnetic pole reversal signal feedback devices. A product mounting station for placing a product is located in the middle of the upper part of the electrical box. Magnetic pole detection stations are located on both sides of the product mounting station. Each magnetic pole detection station is secured with a cover plate. Three detection magnets are slidably mounted on the upper part of the electrical box within each cover plate. The end of each detection magnet facing the product is attracted to a magnet to be tested on the side of the product with opposite poles. A contact switch is installed on the other end of the electrical box of each detection magnet. The contact switch is electrically connected to the electrical box. When the magnet to be tested on the side of the product is installed in reverse, the magnet to be tested pushes the detection magnet to slide and trigger the contact switch. After the contact switch is activated, the electrical box sends a magnetic pole reversal signal feedback device. A return spring is also installed inside the cover plate to drive the detection magnet to slide towards the product.

[0007] As a preferred technical solution of this utility model, three signal feedback lamps are installed on the surface of both cover plates as magnetic pole reversal signal feedback devices, and each contact switch forms an independent electrical circuit with a signal feedback lamp through an electrical box.

[0008] As a preferred technical solution of this utility model, a start / stop switch electrically connected to the electrical box is also installed on the surface of a cover plate.

[0009] As a preferred technical solution of this utility model, three clearance openings are provided on the side of both cover plates facing the product. Each clearance opening is corresponding to a magnet to be tested, and the opening area of ​​the clearance opening is smaller than the end face area of ​​one end of the magnet to be tested.

[0010] As a preferred technical solution of this utility model, a buffer layer is provided on the inner wall of the cover plate inside the avoidance opening, and the buffer layer abuts against one end of the detection magnet.

[0011] As a preferred technical solution of this utility model, the upper end of the electrical box inside the cover plate is provided with three slide rails perpendicular to the end face of the magnet to be tested. Each slide rail is slidably connected with a small trolley. One end of the small trolley is provided with an installation groove, and the other end of the magnet to be tested is installed in the installation groove. The other end of the small trolley is provided with a limiting ring fixed to the cover plate. The other end of the small trolley is connected to a contact rod that passes through the limiting ring and is correspondingly provided with a contact switch. A reset spring is sleeved on the contact rod and its two ends are respectively connected to the limiting ring and the other end of the small trolley.

[0012] Beneficial effects: When performing testing, this utility model only requires placing the product on the product installation station between the two cover plates. If the magnetic poles of the magnets to be tested on both sides of the product are installed correctly, there will be no magnetic pole reversal signal feedback device. If a magnetic pole reversal signal feedback device is issued, the corresponding magnet to be tested can be directly identified. This allows all six magnets to be tested to be inspected at once, improving efficiency and reducing the possibility of misjudgment. Attached Figure Description

[0013] Figure 1 This is a top view of the present invention without the cover plate installed;

[0014] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle;

[0015] Figure 3 This is a three-dimensional schematic diagram of the present invention.

[0016] In the diagram: 1-Electrical box; 2-Product; 3-Cover plate; 4-Detection magnet; 5-Contact switch; 6-Reset spring; 7-Signal feedback light; 8-Small trolley; 9-Limit ring; 10-Contact rod; 11-Start / stop switch. Detailed Implementation

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is 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. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0018] Example:

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a device for simultaneous detection of multiple magnets with different magnetic poles. It includes an electrical box 1 equipped with six magnetic pole reversal signal feedback devices. The electrical box 1 is equipped with existing electrical equipment such as power supplies and relays to ensure the normal operation of the simultaneous detection device. The upper middle part of the electrical box 1 is provided with a product installation station for placing the product 2. Depending on the actual situation, a specific positioning structure, such as a concave-convex structure, will be set on the product installation station to ensure that the product 2 can be placed stably and quickly on the product installation station without affecting the normal detection of the magnets to be tested. Magnetic pole detection stations are set on both sides of the product installation station to facilitate the simultaneous detection of the magnets to be tested on both sides of the product 2.

[0020] Each of the two magnetic pole detection stations is fitted with a cover plate 3. Three detection magnets 4 are slidably mounted on the upper end of the electrical box 1 within each cover plate 3. The end of each detection magnet 4 facing the product 2 is attracted to a magnet to be tested on the side of the product 2 by opposite polarities. When the magnets to be tested on both sides of the product 2 are correctly installed, the detection magnet 4 remains relatively stable due to the limitation imposed by the cover plate 3. If one magnet to be tested is installed incorrectly, the detection magnet 4 can be pushed to slide away from that magnet. A contact switch 5 is installed on the electrical box 1 at the other end of each detection magnet 4. The contact switch 5 is electrically connected to the electrical box 1. When the magnet to be tested is installed in the wrong direction on the side of product 2, the magnet to be tested pushes the detection magnet 4 to slide and touch the contact switch 5. After the contact switch 5 is turned on, the electrical box 1 sends a magnetic pole reversal signal feedback device. Each contact switch 5 corresponds to a magnetic pole reversal signal feedback device. Thus, when the magnetic pole reversal signal feedback device is sent, it can be quickly determined which magnet to be tested is installed in the wrong direction. The cover plate 3 is also equipped with a reset spring 6 to drive the detection magnet 4 to slide towards product 2. After the test is completed, the reset spring 6 will drive the detection magnet 4 to slide back to its original position, which is convenient for the next test.

[0021] When performing testing, this utility model only requires placing the product 2 on the product installation station between the two cover plates 3. If the magnetic poles of the magnets to be tested on both sides of the product 2 are installed correctly, there will be no magnetic pole reversal signal feedback device. If a magnetic pole reversal signal feedback device is issued, the corresponding magnet to be tested can be directly identified, so that the six magnets to be tested can be checked at one time, which improves efficiency and reduces the possibility of misjudgment.

[0022] As a preferred embodiment of this invention, it should be further explained that three signal feedback lamps 7, which serve as magnetic pole reversal signal feedback devices, are installed on the surfaces of both cover plates 3. Each contact switch 5 forms an independent electrical circuit with one signal feedback lamp 7 through the electrical box 1. Thus, during magnetic pole detection, the power supply of the electrical circuit can be controlled by the contact switch 5. Normally, if the contact switch 5 is not triggered, the electrical circuit is not connected, and the signal feedback lamp 7 is not lit. If the contact switch 5 is triggered, the electrical circuit is connected, the signal feedback lamp 7 lights up, indicating that the magnetic pole of the corresponding magnet under test is reversed.

[0023] As a preferred embodiment of this invention, it should be further noted that a start / stop switch 11 electrically connected to the electrical box 1 is also installed on the surface of a cover plate 3, which facilitates operation and can control the power off of the entire device when no testing work is being performed.

[0024] As a preferred embodiment of this invention, it should be further explained that each of the two cover plates 3 has three clearance openings on the side facing the product 2, and each clearance opening is corresponding to a magnet to be tested. In this way, magnetic interference is reduced during magnetic pole detection, so that the magnetic force between the detection magnet 4 and the magnet to be tested can be maximized. This also makes the detection magnet 4 more sensitive to the influence of the magnet to be tested. In addition, the opening area of ​​the clearance opening is smaller than the end face area of ​​one end of the detection magnet 4. This allows the cover plate 3 to block the detection magnet 4 and prevent the detection magnet 4 from colliding with the magnet to be tested, thereby preventing damage to the equipment.

[0025] As a preferred embodiment of this invention, it should be further explained that a buffer layer is provided on the inner wall of the cover plate 3 inside the clearance opening. The buffer layer abuts against one end of the detection magnet 4. In practice, when the magnetic poles of the magnet to be tested are reversed, causing the detection magnet 4 to slide away from it, if the product 2 is removed, the detection magnet 4 loses the magnetic thrust of the magnet to be tested and will be reset under the elastic force of the reset spring 6, and then slide towards the clearance opening. At this time, the detection magnet 4 will inevitably collide with the cover plate 3, and the buffer layer plays a role in mitigating the collision. The buffer layer is preferably sponge or rubber, etc., and does not need to be too thick to play a good buffering role, and has little impact on the magnetic force between the detection magnet 4 and the magnet to be tested.

[0026] As a preferred embodiment of this invention, it should be further explained that the upper end of the electrical box 1 inside the cover plate 3 is provided with three slide rails perpendicular to the end face of the magnet to be tested. Each slide rail is slidably connected to a small trolley 8. The small trolley 8 can slide freely along the slide rail within the cover plate 3, reducing friction during sliding and increasing the flexibility of the magnetic force acting on the detection magnet 4. One end of the small trolley 8 has a mounting groove, and the other end of the detection magnet 4 is installed in the mounting groove, ensuring that the small trolley 8 and the detection magnet 4 slide synchronously. One end of the detection magnet 4 extends outside the mounting groove, ensuring that it can be as close as possible to the magnet to be tested. The other end of the small trolley 8 is provided with a fixed... The limiting ring 9 on the cover plate 3 is spaced apart from the small trolley 8. The other end of the small trolley 8 is connected to a contact rod 10 that passes through the limiting ring 9 and is correspondingly set with the contact switch 5. This does not affect the contact rod 10 abutting against the contact of the contact switch 5 when the small trolley 8 slides. The return spring 6 is sleeved on the contact rod 10 and its two ends are respectively connected to the limiting ring 9 and the other end of the small trolley 8. This allows the small trolley 8 to compress the return spring 6 when it slides towards the limiting ring 9 under the action of magnetic force. After the product 2 is removed, the magnetic force is reduced, and the small trolley 8 and the detection magnet 4 can automatically reset under the spring force of the return spring 6, which facilitates the next detection and makes the detection process simpler and more efficient.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for simultaneously detecting multiple magnets with different magnetic poles, characterized in that, The device includes an electrical box (1) equipped with a six-pole reverse signal feedback device. A product installation station for placing the product (2) is located in the middle of the upper part of the electrical box (1). Magnetic pole detection stations are located on both sides of the product installation station. Each magnetic pole detection station is secured with a cover plate (3). Three detection magnets (4) are slidably installed on the upper part of the electrical box (1) inside the two cover plates (3). The end of each detection magnet (4) facing the product (2) is attracted to a magnet to be tested on the side of the product (2) by opposite poles. Each detection magnet (4) has a contact switch (5) installed on the electrical box (1) at the other end. The contact switch (5) is electrically connected to the electrical box (1) and is used to push the detection magnet (4) to slide and touch the contact switch (5) when the magnet to be tested is installed in reverse on the side of the product (2). After the contact switch (5) is turned on, the electrical box (1) sends a magnetic pole reversal signal feedback device. The cover plate (3) is also equipped with a reset spring (6) to drive the detection magnet (4) to slide towards the product (2).

2. The device for simultaneous detection of multiple magnets with different magnetic poles according to claim 1, characterized in that, Three signal feedback lamps (7) are installed on the surfaces of the two cover plates (3) as magnetic pole reversal signal feedback devices. Each contact switch (5) forms an independent electrical circuit with a signal feedback lamp (7) through the electrical box (1).

3. A device for simultaneous detection of multiple magnets with different magnetic poles according to claim 1 or 2, characterized in that, A start / stop switch (11) that is electrically connected to the electrical box (1) is also installed on the surface of a cover plate (3).

4. The device for simultaneous detection of multiple magnets with different magnetic poles according to claim 1, characterized in that, Both cover plates (3) have three clearance openings on the side facing the product (2). Each clearance opening is set with a magnet to be tested, and the opening area of ​​the clearance opening is smaller than the end face area of ​​one end of the magnet (4).

5. The device for simultaneous detection of multiple magnets with different magnetic poles according to claim 4, characterized in that, A buffer layer is provided on the inner wall of the cover plate (3) inside the avoidance opening, and the buffer layer abuts against one end of the detection magnet (4).

6. A device for simultaneous detection of multiple magnets with different magnetic poles according to claim 1, 2, 4 or 5, characterized in that, The electrical box (1) inside the cover plate (3) is provided with three slide rails perpendicular to the end face of the magnet to be tested. Each slide rail is slidably connected with a small trolley (8). One end of the small trolley (8) is provided with an installation groove, and the other end of the detection magnet (4) is installed in the installation groove. The other end of the small trolley (8) is provided with a limiting ring (9) fixed on the cover plate (3). The other end of the small trolley (8) is connected to a contact rod (10) that passes through the limiting ring (9) and is provided with a contact switch (5). The reset spring (6) is sleeved on the contact rod (10) and its two ends are respectively connected to the limiting ring (9) and the other end of the small trolley (8).

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