A toroidal magnet gauss detection apparatus

Abstract

The utility model relates to a kind of annular magnet gauss detection equipment, vertical plate is equipped on base, vertically installed on vertical plate the sensor clamping plate of being able to go up and down, vertically installed on sensor clamping plate magnetic induction sensor;Base is also installed with clamping assembly, clamping assembly includes three-jaw chuck, the inner circle of annular magnet to be detected is fixed by claw of three-jaw chuck, the lower end of magnetic induction sensor is located directly above annular magnet;Base is also installed with motor, speed reducer, three-jaw chuck is connected with motor by speed reducer, the motor is used to drive three-jaw chuck rotation, so that magnetic induction sensor detects the magnetic field intensity of different position of annular magnet.The application can make three-jaw chuck rotate predetermined angle each time by preset control program, whereby automatically efficiently complete annular magnet different point position's magnetic field intensity detection;Detection error is small, so that detection result is accurate and reliable.

Description

Technical Field

[0001] This utility model relates to magnet assembly technology, and in particular to a Gaussian detection device for a ring magnet. Background Technology

[0002] Magnets are a widely used basic electronic and electrical component, primarily used in computers, mobile phones, televisions, communications, toys, audio equipment, automation equipment, and MRI. Currently, neodymium iron boron magnets are widely used as high-performance permanent magnets. In the production and processing of electronic products, diaphragms (microphone, headphone, speaker, etc.), and electroacoustic equipment, some equipment requires magnets that are not conventionally rectangular or circular shapes. Depending on the product processing requirements, magnets need to be combined into shapes and sizes suitable for the equipment.

[0003] Ring-shaped composite magnets typically consist of ring-shaped patches and multiple sector-shaped magnetic blocks. After assembly, the magnetic field strength of the ring-shaped magnet needs to be tested to ensure that the magnet's performance meets the requirements. Currently, there is a lack of dedicated equipment for testing the magnetic field strength of ring-shaped magnets, resulting in low efficiency and poor accuracy in the testing process. Utility Model Content

[0004] The purpose of this invention is to provide a Gaussian detection device for ring magnets, which solves the problems of low efficiency and poor accuracy in the detection of magnetic field strength of existing ring magnets.

[0005] To address the aforementioned problems, this utility model provides a Gaussian detection device for a ring magnet. A vertical plate is mounted on the base, and a sensor clamping plate capable of vertical movement is installed on the vertical plate. A vertically oriented magnetic induction sensor is mounted on the sensor clamping plate, with its end facing downwards to detect the magnetic field strength of the magnet. A clamping assembly, including a three-jaw chuck, is also mounted on the base. The central axis of the three-jaw chuck is vertical, and the jaws face upwards. The inner ring of the ring magnet to be detected is fixed by the jaws of the three-jaw chuck, and the central axis of the ring magnet is vertical. The lower end of the magnetic induction sensor is located directly above the ring magnet. A motor and a reducer are also mounted on the base. The three-jaw chuck is connected to the motor via the reducer, and the motor drives the three-jaw chuck to rotate, allowing the magnetic induction sensor to detect the magnetic field strength at different positions of the ring magnet.

[0006] The ring magnet Gaussian detection device provided by this utility model also has the following technical features:

[0007] Furthermore, the reducer is mounted on the base with its output shaft facing vertically upwards, and the three-jaw chuck is fixedly connected to the output shaft of the reducer.

[0008] Furthermore, the vertical plate is also equipped with a handwheel for driving the sensor clamping plate to move up and down.

[0009] Furthermore, the upright plate is provided with a vertical sliding groove facing the three-jaw chuck, and a lifting rod that can move up and down is installed in the vertical sliding groove, and the sensor clamping plate is installed on the lifting rod.

[0010] Furthermore, a connecting plate is also installed on the lifting rod, and an adjustable slide is installed on the connecting plate. The sensor clamping plate is installed on the adjustable slide. The adjustable slide includes a base plate, a middle plate, and a top plate. A first horizontal adjustment screw mechanism is provided between the base plate and the middle plate, and a second horizontal adjustment screw mechanism is provided between the middle plate and the top plate.

[0011] Furthermore, an anti-collision limiting plate is also installed on the base, and the anti-collision limiting plate is located below the connecting plate to limit the lowest descent position of the connecting plate.

[0012] Furthermore, a limit stud is installed at the upper end of the anti-collision limiting plate to adjust the limiting height.

[0013] The present invention has the following beneficial effects: The above-mentioned Gaussian detection device for a ring magnet is used by first mounting the ring magnet to be tested on a three-jaw chuck, making the upper surface of the ring magnet horizontal. Then, the position of the lower end of the magnetic induction sensor is adjusted so that the lower end of the magnetic induction sensor is aligned with the upper surface of the ring magnet, and the distance between the lower end of the magnetic induction sensor and the upper surface of the ring magnet meets the detection requirements. The control module, through a preset control program, causes the three-jaw chuck to rotate by a predetermined angle each time to change the position of the ring magnet, thereby adjusting the detection position of the magnetic induction sensor. Thus, the magnetic field strength detection at different points of the ring magnet can be completed automatically and efficiently. During the detection process, the position of the magnetic induction sensor relative to the ring magnet to be tested can be accurately controlled, the detection error is small, and the detection results are accurate and reliable. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the ring magnet Gaussian detection device according to an embodiment of the present invention;

[0015] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0016] Figure 3 for Figure 1 Front view of a Gaussian detection device with a medium-ring magnet;

[0017] Figure 4 for Figure 1 Another structural schematic diagram of the Gaussian detection device with a medium-ring magnet. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0019] like Figures 1 to 4 In the embodiment of the toroidal magnet Gaussian detection device of this utility model shown, the base 10 of the toroidal magnet Gaussian detection device is provided with a vertical plate 20, and a sensor clamping plate 30 that can be raised and lowered is installed on the vertical plate 20. A vertically oriented magnetic induction sensor 301 is installed on the sensor clamping plate 30, with the end of the magnetic induction sensor 301 facing downwards for detecting the magnetic field strength of the magnet. The base 10 is also provided with a clamping assembly 40, which includes a three-jaw chuck 41. The central axis of the three-jaw chuck 41 is vertical and the jaws face upwards. The inner ring of the toroidal magnet 101 to be detected is fixed by the jaws of the three-jaw chuck 41 and the central axis of the toroidal magnet 101 is fixed. The magnetic induction sensor 301 is vertically oriented, with its lower end positioned directly above the annular magnet 101. The clamping assembly 40 also includes a motor 43 and a reducer 42 mounted on the base 10. The three-jaw chuck 41 is connected to the motor 43 via the reducer 42. The motor 43 drives the three-jaw chuck 41 to rotate, enabling the magnetic induction sensor 301 to detect the magnetic field strength at different positions on the annular magnet 101. Specifically, the motor 43 is a stepper motor, and a preset control program allows the three-jaw chuck 41 to rotate by a predetermined angle each time. For example, the three-jaw chuck 41 rotates 10° each time, which can automatically complete the detection of the magnetic field strength at 36 points on the upper side of the annular magnet 101.

[0020] The aforementioned Gaussian detection device for a ring magnet described in this application first mounts the ring magnet 101 to be tested onto a three-jaw chuck 41, ensuring the upper surface of the ring magnet 101 is horizontal. Then, the position of the lower end of the magnetic induction sensor 301 is adjusted so that the lower end of the magnetic induction sensor 301 is aligned with the upper surface of the ring magnet 101, and the distance between the lower end of the magnetic induction sensor 301 and the upper surface of the ring magnet 101 meets the detection requirements. The control module, through a preset control program, rotates the three-jaw chuck 41 by a predetermined angle each time to change the position of the ring magnet 101, thereby adjusting the detection position of the magnetic induction sensor 301. This allows for the automatic detection of the magnetic field strength at different points on the ring magnet 101. During the detection process, the position of the magnetic induction sensor relative to the ring magnet to be tested can be accurately controlled, resulting in small detection errors and accurate and reliable detection results.

[0021] In one embodiment of this application, preferably, the reducer 42 is mounted on the base 10 with its output shaft facing vertically upwards, and the three-jaw chuck 41 is fixedly connected to the output shaft of the reducer 42; as Figure 1 , Figure 4 As shown, the input shaft of the reducer 42 is horizontal, and the output shaft of the motor 43 is horizontal and connected to the input shaft of the reducer 42 through a coupling, making the equipment structure compact.

[0022] In one embodiment of this application, preferably, the vertical plate 20 is further provided with a handwheel 21 for driving the sensor clamping plate 30 to move up and down; preferably, the vertical plate 20 is provided with a vertical slide groove 22 facing the three-jaw chuck 41, and a lifting rod 23 capable of moving up and down is installed in the vertical slide groove 22, with the sensor clamping plate 30 mounted on the lifting rod 23. Specifically, the vertical plate 20 is further provided with a vertical lifting mechanism, and the handwheel 21 drives the lifting rod 23 to move up and down in the vertical slide groove 22 through the vertical lifting mechanism; in one embodiment of this application, the lifting mechanism includes a vertical rack fixedly connected to the lifting rod 23 and capable of sliding up and down, and a drive gear meshing with the vertical rack is installed on the central shaft of the handwheel 21, and when the handwheel 21 rotates, the drive gear can drive the vertical rack to slide up and down in the vertical slide groove 22; those skilled in the art can select other vertical lifting mechanisms to drive the lifting rod 23 to move up and down as needed, which will not be described in detail here.

[0023] In one embodiment of this application, preferably, a connecting plate 24 is also installed on the lifting rod 23, and an adjustable slide 50 is installed on the connecting plate 24. The sensor clamping plate 30 is installed on the adjustable slide 50. The adjustable slide 50 includes a bottom plate, a middle plate and a top plate. A first horizontal adjustment screw mechanism 51 is provided between the bottom plate and the middle plate, and a second horizontal adjustment screw mechanism 52 is provided between the middle plate and the top plate. This allows the position of the sensor clamping plate 30 and the magnetic induction sensor 301 to be adjusted in the horizontal direction, and the lower end of the magnetic induction sensor 301 can be quickly aligned with the annular magnet 101 to be detected.

[0024] In one embodiment of this application, preferably, a collision-prevention limiting plate 11 is also installed on the base 10. The collision-prevention limiting plate 11 is located below the connecting plate 24 to limit the lowest descending position of the connecting plate 24, thereby preventing damage caused by the lower end of the magnetic induction sensor 301 contacting the annular magnet 101 to be detected or the clamping assembly 40 when the sensor clamping plate 30 and the magnetic induction sensor 301 move downward. Preferably, a limiting stud 12 is also installed at the upper end of the collision-prevention limiting plate 11 to adjust the limiting height, thereby allowing the limiting height to be conveniently adjusted as needed.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not 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 ring magnet gauss detection device, wherein a vertical plate is provided on the base, characterized in that, A sensor clamping plate capable of vertical movement is mounted on the upright plate. A vertically oriented magnetic induction sensor is mounted on the sensor clamping plate, with its end facing downwards to detect the magnetic field strength of the magnet. A clamping assembly, including a three-jaw chuck, is also mounted on the base. The central axis of the three-jaw chuck is vertical, and the jaws face upwards. The inner ring of the annular magnet to be detected is fixed by the jaws of the three-jaw chuck, and the central axis of the annular magnet is vertical. The lower end of the magnetic induction sensor is located directly above the annular magnet. A motor and a reducer are also mounted on the base. The three-jaw chuck is connected to the motor through the reducer. The motor drives the three-jaw chuck to rotate, allowing the magnetic induction sensor to detect the magnetic field strength at different positions of the annular magnet.

2. The annular magnet Gaussian detection device according to claim 1, characterized in that: The reducer is mounted on the base with its output shaft facing vertically upwards, and the three-jaw chuck is fixedly connected to the output shaft of the reducer.

3. The toroidal magnet Gaussian detection device according to claim 1, characterized in that: The vertical plate is also equipped with a handwheel that drives the sensor clamping plate to move up and down.

4. The toroidal magnet Gaussian detection device according to claim 1, characterized in that: The upright plate is provided with a vertical sliding groove facing the three-jaw chuck, and a lifting rod that can be raised and lowered is installed in the vertical sliding groove. The sensor clamping plate is installed on the lifting rod.

5. The toroidal magnet Gaussian detection device according to claim 4, characterized in that: A connecting plate is also installed on the lifting rod, and an adjustable slide is installed on the connecting plate. The sensor clamping plate is installed on the adjustable slide. The adjustable slide includes a base plate, a middle plate and a top plate. A first horizontal adjustment screw mechanism is provided between the base plate and the middle plate, and a second horizontal adjustment screw mechanism is provided between the middle plate and the top plate.

6. The toroidal magnet Gaussian detection device according to claim 5, characterized in that: The base is also equipped with an anti-collision limiting plate, which is located below the connecting plate to limit the lowest descent position of the connecting plate.

7. The toroidal magnet Gaussian detection device according to claim 6, characterized in that: The upper end of the anti-collision limiting plate is also equipped with a limiting stud to adjust the limiting height.

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