Magnet polarity full-inspection equipment

Abstract

The utility model relates to the technical field of full-inspection equipment, and discloses magnet polarity full-inspection equipment which comprises a main body and a jig plate, the jig plate and the main body are installed through a flat cable, the main body comprises a clamping cover and an operation box, the clamping cover is connected to the side portion of the operation box, the side portion of the clamping cover is connected with a clamping column, the surface of the operation box is further provided with an installation groove, and the installation groove is connected with the clamping column. The surface of the operation box is connected with a first signal interface, the side portion of the jig plate is connected with a second wiring port, one end of the flat cable is connected to the end portion of the first signal interface, the other end of the flat cable is connected to the end portion of the second signal interface, and a plurality of single-pole Hall sensors are arranged in the jig plate. Through the arrangement of the single-pole Hall sensors, the positions of the single-pole Hall sensors are arranged according to the magnetic pole position requirements of a product. During detection, a product is placed in the detection area on the jig plate, and a polarity requirement graphic example of the detected product is arranged on the display screen.

Description

Technical Field

[0001] The utility model relates to the technical field of full inspection equipment, in particular to a magnet polarity full inspection equipment. Background Art

[0002] Magnets are widely used in electronics, machinery, medical equipment, automotive, electroacoustics, and motors. The unipolar Hall effect principle specifies one magnetic pole, typically the south pole, as the magnetic field approaches. When the magnetic field approaches, the Hall effect switches on, generating a low-level output. When the magnetic field moves away, the Hall effect switches off, generating a high-level output. The other magnetic pole remains high. Arranging multiple magnets with different polarities or assembling them into various magnetic structures (such as the Halbach structure) can produce a stronger magnetic field with minimal magnetic flux and volume.

[0003] For magnets of the same size, some require the S pole to face upward, while others require the N pole to face upward. Operators are prone to make mistakes when placing the magnets. Manual inspection with a handheld polarity pen can cause visual fatigue over time, leading to missed inspections or repeated inspections. Therefore, this does not meet existing needs. Therefore, we have proposed a full-scale magnet polarity inspection device. Utility Model Content

[0004] The utility model provides a full-detection device for magnet polarity. When a magnet that does not meet the requirements is detected, a red light or an alarm will be displayed to remind the inspector that there is an item that does not meet the design requirements, so as to achieve the beneficial effect of fast and accurate detection. The utility model solves the problem mentioned in the background technology that some magnets of the same size require the S pole to face up, while some require the N pole to face up, and the operator is prone to make a mistake in placing the polarity when placing the magnet. The use of a manual handheld polarity pen for inspection will cause visual fatigue to the staff if the inspection is carried out for a long time, resulting in missed inspections or repeated inspections.

[0005] The utility model provides the following technical solution: a magnet polarity full inspection device, including a main body and a jig plate, the jig plate and the main body are installed through wiring, the main body includes a snap-fit cover and an operating box, the snap-fit cover is connected to the side of the operating box, the side of the snap-fit cover is connected to a snap-fit column, and the surface of the operating box is also provided with an installation groove, and the snap-fit column is slidably engaged with the installation groove.

[0006] As an optional solution for a full inspection device for magnet polarity described in the present invention, wherein: the surface of the operating box is connected to a first signal interface, the side of the fixture plate is connected to a second signal interface, one end of the cable is connected to the end of the first signal interface, and the other end of the cable is connected to the end of the second signal interface.

[0007] As an optional solution of the magnet polarity full inspection equipment described in the utility model, several unipolar Hall sensors are arranged inside the fixture plate.

[0008] As an optional solution for the full detection equipment of magnet polarity described in the utility model, a piston groove is provided at the bottom of the engaging column, a piston cylinder is connected inside the mounting groove, a first piston disc is slidably connected inside the piston cylinder, and the first piston disc slides with the inside of the piston cylinder.

[0009] As an optional solution of the magnet polarity full inspection equipment described in the present invention, the first piston disc is connected to a fixing rod on its side, the end of the fixing rod is connected to a second piston disc, and the second piston disc is slidably engaged with the piston groove.

[0010] As an optional solution for the magnet polarity full inspection equipment described in the present invention, the second piston disc and the fixed rod are both provided with a slot, a telescopic column is connected to the slot, and a contact plate is connected to the end of the telescopic column.

[0011] As an optional solution of the magnet polarity full detection equipment described in the utility model, a first spring is sleeved on the outer side of the telescopic column.

[0012] As an optional solution for the magnet polarity full inspection device described in the utility model, a cross bar is connected inside the installation groove, a second spring is connected between the cross bar and the installation groove, and the second spring is sleeved on the outside of the piston cylinder.

[0013] The utility model has the following beneficial effects:

[0014] This full-scale magnet polarity inspection equipment utilizes unipolar Hall sensors, which are positioned according to the product's magnetic pole position requirements. During testing, the product is placed in the inspection area on the fixture board. The unipolar Hall sensor below the south pole conducts, outputting a low level, while the one below the north pole outputs a high level. The signal interface on the fixture board feeds the voltage signal back to the main unit via a flat cable for processing and display on the display. The display features a graphical example of the polarity requirements for the tested product. If a magnet that doesn't meet the requirements is detected, a red light or alarm will be displayed to alert the inspector of any non-compliance with the design requirements, enabling fast and accurate testing. The fixture board can also be customized for different products, achieving versatility across the entire machine. This addresses the issue of magnets of the same size requiring the south pole to face up while others require the north pole to face up, leading to errors in polarity placement. Manual polarity testing with a handheld polarity pen can be time-consuming and can cause visual fatigue, leading to missed inspections or repeated inspections.

[0015] 2. This full-scale magnet polarity inspection device features a locking post that mates with the mounting slot. As the locking post engages the mounting slot, the first and second piston discs slide within the piston slot and piston cylinder, respectively. This coordination between the locking post and mounting slot ensures a more secure connection between components, reducing impacts caused by incorrect or unstable connections. This is crucial for protecting the main structure and reducing vibration throughout the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the main structure of the utility model.

[0018] Figure 3 It is a front view structural schematic diagram of the present utility model.

[0019] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure.

[0020] Figure 5 This is a schematic structural diagram of a unipolar Hall sensor of the present utility model.

[0021] In the figure: 110, main body; 111, snap-fit cover; 112, operation box; 113, snap-fit column; 120, fixture plate; 121, cable; 130, mounting slot; 131, first signal interface; 132, second signal interface; 133, unipolar Hall sensor; 134, piston slot; 135, piston cylinder; 140, first piston disc; 141, fixing rod; 142, second piston disc; 143, notch; 144, telescopic column; 145, contact plate; 150, first spring; 151, cross bar; 152, second spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1: This example aims to solve the problem that some magnets of the same size require the S pole to be upward, while others require the N pole to be upward. Operators are prone to make mistakes in polarity placement when placing magnets. Manual polarity pen inspection will cause visual fatigue to the operator over time, resulting in missed inspections or repeated inspections. Please refer to Figure 1-5A magnet polarity full inspection device includes a main body 110 and a jig plate 120. The jig plate 120 and the main body 110 are installed through a cable 121. The main body 110 includes a snap cover 111 and an operation box 112. The snap cover 111 is connected to the side of the operation box 112. The side of the snap cover 111 is connected to a snap column 113. The surface of the operation box 112 is also provided with a mounting groove 130. The snap column 113 is slidably engaged with the mounting groove 130. The surface of the operation box 112 is connected to a first signal interface 131. The side of the jig plate 120 is connected to a second signal interface 132. One end of the cable 121 is connected to the end of the first signal interface 131, and the other end of the cable 121 is connected to the end of the second signal interface 132. A plurality of unipolar Hall sensors 133 are provided inside the jig plate 120.

[0024] The polarity detection device consists of a main body 110, a cable interface 121, a display screen, and a jig board 120. The main body 110 houses a PCB and various signal processing components for receiving and processing signals, then displaying them on the display screen. The jig board 120 consists of upper and lower insulating plates, a PCB, and a signal interface. Multiple unipolar Hall sensors 133 are mounted on the PCB within the jig board 120, positioned according to the product's magnetic pole position requirements. During testing, a product is placed in the test area on the jig board 120. The unipolar Hall sensors 133 located below the south pole conduct and output a low level, while those located below the north pole output a high level. The signal interface on the jig board 120 feeds the voltage signal back to the main body 110 via the cable 121, where it is processed and displayed on the display screen. The display screen displays a graphical example of the polarity requirements for the product being tested. If a magnet that does not meet the requirements is detected, a red light or alarm will be displayed to alert the tester that the design requirements are not met, enabling fast and accurate testing. In addition, the fixture board 120 can be customized according to different products to achieve the versatility of the entire machine. The fixture board 120 is connected to the host with a flat cable 121, and the product is placed in the detection area of the customized fixture board 120. The Hall effect collects the signal, the host processes the signal, and each measuring point on the display screen shows a green light, which means the product polarity is qualified. If a measuring point on the display screen shows a red light, the product has a polarity error. Through the above steps, fast and accurate detection can be achieved.

[0025] In this embodiment, the unipolar Hall effect sensor 133 is positioned according to the magnetic pole position requirements of the product. During testing, the product is placed in the testing area on the jig plate 120. The unipolar Hall effect sensor 133 located below the S pole is turned on, outputting a low level, while the unipolar Hall effect sensor 133 located below the N pole outputs a high level. The signal interface on the jig plate 120 feeds the voltage signal back to the main body 110 via the flat cable 121, where it is processed and displayed on the display screen. The display screen includes a graphical example of the polarity requirements of the tested product. If a magnet that does not meet the requirements is detected, a red light or alarm will be displayed to alert the tester that there is a non-compliance with the design requirements, enabling fast and accurate testing. The jig plate 120 can also be customized to different products, achieving universality of the entire machine. This solves the problem of magnets of the same size requiring the S pole to face up while others require the N pole to face up, which can easily lead to polarity errors when the operator places the magnet. Manual polarity testing with a handheld polarity pen can cause visual fatigue over time, resulting in missed tests or repeated tests.

[0026] Example 2: This example is intended to solve the problem of excessive engagement impact. This example is an improvement made on the basis of Example 1. For details, please refer to Figure 1-5 A piston groove 134 is provided at the bottom of the engaging column 113 , the interior of the mounting groove 130 is connected to the piston cylinder 135 , and the interior of the piston cylinder 135 is slidably connected to the first piston disc 140 , and the first piston disc 140 is slidably matched with the interior of the piston cylinder 135 .

[0027] A fixing rod 141 is connected to the side of the first piston disc 140, and a second piston disc 142 is connected to the end of the fixing rod 141. The second piston disc 142 slides in cooperation with the piston groove 134. A slot 143 is provided inside the second piston disc 142 and the fixing rod 141. A telescopic column 144 is connected inside the slot 143. A resistance plate 145 is connected to the end of the telescopic column 144. A first spring 150 is sleeved on the outside of the telescopic column 144. A cross bar 151 is connected inside the mounting groove 130. A second spring 152 is connected between the cross bar 151 and the mounting groove 130. The second spring 152 is sleeved on the outside of the piston cylinder 135.

[0028] In this embodiment, the arrangement of the engaging post 113, which engages with the mounting groove 130, allows the first piston disc 140 and the second piston disc 142 to slide within the piston groove 134 and the piston cylinder 135, respectively. The coordination between the engaging post 113 and the mounting groove 130 ensures a more secure connection between the components, thereby reducing impacts caused by incorrect or unstable connections. This is crucial for protecting the structure of the main body 110 and reducing vibrations throughout the system.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A magnet polarity full inspection device, comprising a main body (110) and a jig plate (120), wherein the jig plate (120) and the main body are mounted via a cable (121), characterized in that: The main body (110) includes a snap-fit cover (111) and an operating box (112). The snap-fit cover (111) is connected to the side of the operating box (112). A snap-fit column (113) is connected to the side of the snap-fit cover (111). A mounting groove (130) is also provided on the surface of the operating box (112). The snap-fit column (113) is slidably engaged with the mounting groove (130).

2. The magnet polarity full inspection device according to claim 1, characterized in that: The surface of the operating box (112) is connected to a first signal interface (131), the side of the fixture plate (120) is connected to a second signal interface (132), one end of the flat cable (121) is connected to the end of the first signal interface (131), and the other end of the flat cable (121) is connected to the end of the second signal interface (132).

3. The magnet polarity full inspection device according to claim 1, characterized in that: Several unipolar Hall sensors (133) are arranged inside the fixture plate (120).

4. The magnet polarity full inspection device according to claim 1, characterized in that: A piston groove (134) is provided at the bottom of the engaging column (113), the interior of the mounting groove (130) is connected to a piston cylinder (135), the interior of the piston cylinder (135) is slidably connected to a first piston disc (140), and the first piston disc (140) is slidably matched with the interior of the piston cylinder (135).

5. The magnet polarity full inspection device according to claim 4, characterized in that: The side of the first piston disc (140) is connected to a fixing rod (141), the end of the fixing rod (141) is connected to a second piston disc (142), and the second piston disc (142) is slidably matched with the piston groove (134).

6. The magnet polarity full inspection device according to claim 5, characterized in that: A slot (143) is formed inside the second piston disc (142) and the fixing rod (141). A telescopic column (144) is connected inside the slot (143). The end of the telescopic column (144) is connected to a contact plate (145).

7. The magnet polarity full inspection device according to claim 6, characterized in that: A first spring (150) is sleeved on the outer side of the telescopic column (144).

8. The magnet polarity full inspection device according to claim 7, characterized in that: A cross bar (151) is connected inside the installation groove (130), a second spring (152) is connected between the cross bar (151) and the installation groove (130), and the second spring (152) is sleeved on the outside of the piston cylinder (135).

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