Small handheld portable center magnetic positioning device

Abstract

The utility model discloses a small handheld portable center magnetic positioning device, and relates to the technical field of permanent magnet product detection devices. The device comprises an upper assembly, a middle assembly and a lower assembly which are sequentially connected in the longitudinal direction. The top of the upper assembly is provided with a jack for installing a Hall probe, and the side surface is provided with a left-turn lock wire. A clamping part is arranged outside the middle component, and a rotating shaft penetrating up and down is arranged inside the middle component and is connected with the upper component and the lower component. The bottom of the lower assembly is provided with a housing jack, and the side surface is provided with a right-turn lock wire. The upper assembly and the lower assembly can rotate relatively through the rotating shaft of the middle assembly. The device adopts a left and right screw locking positioning mode, realizes rapid and accurate center positioning of the casing and the Hall probe, and effectively reduces personal errors. The structure is compact, the operation is simple and convenient, and the efficiency and precision of permanent magnet product detection are significantly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet product detection devices, in particular to a small handheld and portable central magnetic positioning device. Background Technique

[0002] Central magnetism refers to the central magnetic field intensity after the magnet is assembled into the casing, which is the magnetic field intensity data of the magnet measured by a gaussmeter and the center of the casing. The test position needs to be adjusted manually multiple times to test the highest value, and the human interference factor is relatively large. The offset between the center of the casing and the test center will measure different data, and a specific one-to-one fixture is required. The determination of the center position of the casing and the manufacture of the fixture are particularly crucial. Therefore, it is necessary for us to design a device; this device is small in size, convenient to operate, can be held with one hand, quickly and conveniently determines the fixed center position and meets different sizes of casings for testing, and is convenient for product quality control.

[0003] In the prior art, CN201821831213.9 discloses a center magnetic field test fixture for a tile-shaped magnet, including a bracket, characterized in that: the bracket includes an upper end plate, a lower end plate and a connecting column therebetween, a central through hole is provided in the middle of the upper end plate, and a ring-shaped rotating table for placing the casing is rotatably installed on the upper end surface of the upper end plate along the circumferential direction of the through hole, and an adjustable fixing frame is installed on the connecting column between the upper end plate and the lower end plate, and the top of the fixing frame is installed with a Hall probe that can extend towards the position of the central through hole. The structure of the utility model is reasonably designed, the test is simple, the adjustment of the same specification probe only requires the first pair of magnets, and only the casing needs to be rotated for subsequent tests to obtain the central magnetic field. The test is time-saving and labor-saving, convenient and accurate, reduces the human measurement error, and improves the test accuracy and test efficiency. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: how to realize the miniaturization and portability of the central magnetic field positioning device while ensuring the positioning accuracy. In the prior art, the central magnetic field positioning device often has problems such as too large equipment volume, complicated operation process and poor portability, and it is difficult to meet the requirements of precise positioning and on-site rapid operation at the same time. Especially when determining the central positions of the casing and the Hall probe, there is often a lack of an effective positioning mechanism, resulting in the measurement results being easily interfered by external factors.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A small handheld and portable central magnetic positioning device, including an upper component, a middle component and a lower component, wherein:

[0007] At the top of the upper component, there is a socket for installing a Hall probe, and on the side, there is a left-turn locking wire for installing and fixing the Hall probe; on the outside of the middle component, there is a clamping part, and inside, there is a rotating shaft running through the upper and lower parts. This rotating shaft connects the upper component and the lower component and is used for hand-held operation and rotational adjustment.

[0008] At the bottom of the lower component, there is a chassis socket, and on the side, there is a right-turn locking wire. Among them, the upper component and the lower component can rotate relative to the middle component through the rotating shaft, and are used for installing and fixing the chassis to be measured.

[0009] Preferably, the Hall probe socket is a cylindrical channel structure with adjustable depth, and its inner diameter matches the outer diameter of the standard Hall probe. By adjusting the insertion depth, precise axial positioning of the Hall probe is achieved.

[0010] Preferably, both the left-turn locking wire and the right-turn locking wire are threaded structures, which are respectively threadedly connected to the upper component and the lower component. By rotating to lock or loosen, the Hall probe and the chassis to be measured can be conveniently installed and disassembled, while ensuring stability during the measurement process.

[0011] Preferably, the clamping part is made of a cylindrical structure of transparent material, which is convenient for observing the installation of internal components. At the same time, the surface is provided with anti-slip textures to improve the comfort and stability of holding.

[0012] Preferably, the rotating shaft runs through the center of the entire device and plays a role in rotation. By rotating the lower component, the angular adjustment of the chassis to be measured relative to the Hall probe is achieved, so as to measure the magnetic field distribution at different angles.

[0013] Preferably, the chassis socket is an open circular structure, and its inner diameter is larger than the outer diameter of the chassis to be measured, which is convenient for inserting and disassembling the chassis. At the same time, an elastic gasket is provided on the inner wall of the chassis socket to play a role in buffering protection and centering, ensuring the coaxiality of the chassis and the measurement accuracy.

[0014] Preferably, there are also multiple layers of fixing structures inside the upper component and the lower component, including a Hall probe positioning ring and a chassis positioning ring. The Hall probe positioning ring and the chassis positioning ring are coaxially arranged. Through these internal fixing structures, precise positioning of the Hall probe and the chassis is achieved, improving the repeatability and consistency of the measurement.

[0015] Preferably, scale marks are also provided on the outside of the Hall probe socket and the chassis socket, which are used for precisely adjusting the insertion depth of the Hall probe and the rotation angle of the chassis, facilitating data recording and comparison.

[0016] The substantial effect of the present utility model is as follows: The small handheld and portable central magnetic positioning device proposed by the present utility model has a simple structure, small size, and is convenient to carry and use. By fixing the Hall probe and the casing to be measured with the left and right lock wires respectively, the central position can be quickly and accurately positioned, avoiding human error. At the same time, the device can be applied to casings of different sizes and specifications, with strong versatility. When in use, the operation can be completed with one hand, which is very convenient. In short, the present utility model provides a simple, fast, and accurate central magnetic test tool, which is very suitable for use in the production line, can effectively improve the test efficiency and accuracy, and has a positive significance for product quality control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of the small handheld and portable central magnetic positioning device of Embodiment 1.

[0018] Figure 2 FIG. is a schematic diagram of the use state of the small handheld and portable central magnetic positioning device of Embodiment 1.

[0019] Figure 3 FIG. is a top view schematic diagram of the small handheld and portable central magnetic positioning device of Embodiment 1.

[0020] In the figure, 1 is the upper component, 2 is the Hall probe socket, 3 is the left-turn lock wire, 4 is the middle component, 5 is the clamping part, 6 is the rotating shaft, 7 is the lower component, 8 is the right-turn lock wire, 9 is the casing socket, 10 is the Hall probe positioning ring, and 11 is the casing positioning ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the drawings.

[0022] Embodiment 1:

[0023] A small handheld and portable central magnetic positioning device, as Figure 1 shown, mainly includes an upper component 1, a middle component 4, and a lower component 7.

[0024] The upper component 1 adopts a cylindrical structure, and a through Hall probe socket 2 is provided at the center inside it. The socket 2 is a cylindrical channel, and its inner diameter matches the size of the Hall probe of common specifications to ensure the stable installation and precise positioning of the probe. A left-turn lock wire 3 is arranged on the outer side of the socket, and the lock wire is threadedly connected to the upper component with a fine thread for locking and fixing the Hall probe.

[0025] The design of the left-turn locking wire 3 has a dual function: Firstly, it can firmly lock the Hall probe to prevent accidental movement of the probe during measurement; Secondly, by rotating the left-turn locking wire, the operator can precisely adjust the insertion depth of the Hall probe, thus achieving precise axial positioning of the probe. This design not only improves the operational flexibility of the device but also significantly enhances the measurement accuracy.

[0026] The material of the upper component 1 is optimized, ensuring sufficient strength while minimizing the overall weight as much as possible. The surface of the component is treated with a special process to enhance the anti-slip performance, ensuring operational stability even in adverse environments.

[0027] The middle component 4 is designed with a cylindrical structure, and its dimensions are carefully calculated to ensure sufficient operating space while remaining compact and portable. This component 4 is made of high-transparency organic glass material. This innovative design allows the operator to directly observe the internal structure, greatly improving the accuracy and convenience during use.

[0028] The outer surface of the middle component 4 is cleverly designed with unique anti-slip textures. These textures adopt a precisely calculated grid-like raised structure, which not only significantly increases the effective hand-holding area but also greatly enhances the comfort of holding and operational stability through optimized ergonomic design.

[0029] The core inside the component 4 is a rotating shaft treated with a special process. This shaft is made of high-strength and corrosion-resistant stainless steel and is precisely machined on its surface to ensure smooth rotation and durability. The two ends of the rotating shaft are connected to the upper and lower components by innovative fixing methods, which not only provide reliable support but also achieve flexible rotation functions.

[0030] The design of the rotating shaft also takes into account the requirements of reducing friction and improving precision. The surface of the shaft is treated with special hardening, and miniature bearings are set at key positions. These detailed designs significantly reduce the rotation resistance and improve the sensitivity and measurement accuracy of the overall device.

[0031] The lower component 7 is designed with a cylindrical structure, and a casing socket 9 is carefully set in its internal center. This socket 9 is an open circular channel, and its inner diameter is optimized to be larger than the diameters of common magnetic component casings on the market to accommodate various specifications of the casings to be measured. This design reflects the wide applicability and practical value of this utility model.

[0032] An elastic gasket is innovatively provided on the inner wall of the socket. The gasket is made of high-quality silicone rubber material, with excellent elasticity and wear resistance. The thickness of the gasket is precisely calculated, which can not only provide sufficient buffering and protection, but also does not affect the measurement accuracy. This design not only plays a role in buffering and protection, but also can effectively center the casing to be measured, significantly improving the accuracy and reliability of the measurement.

[0033] On the outside of the socket, a right-turn locking wire mechanism 8 is cleverly designed. The locking wire 8 is tightly connected to the lower component by a fine thread. This design not only improves the locking force, but also can achieve precise fixation of the casing to be measured. The pitch of the locking wire 8 is optimized, which not only ensures sufficient locking force, but also makes the operation easier and more convenient.

[0034] The design of the right-turn locking wire 8 has dual functions: firstly, it can firmly lock the casing to be measured to prevent accidental movement of the casing during the measurement process; secondly, through a simple rotation operation, the user can easily load and unload the casing, greatly improving the work efficiency. This innovative design makes the fixation of the casing both fast and stable, ensuring high precision and reliability during the measurement process.

[0035] There are also multiple fixing structures inside the upper component 1 and the lower component 7. An axial positioning ring is provided 10 mm from the bottom of the Hall probe socket 1. It is made of ABS material, and the inner diameter matches the outer diameter of the Hall probe, which is used to limit the position of the Hall probe in the axial direction. Two groups of radial support arms are provided above and below the axial positioning ring respectively. Each group of support arms consists of three arc-shaped thin slices evenly distributed at 120°. It is made of elastic stainless steel material and is used to support and center the Hall probe. As Figure 2 、 3 shown, an axial positioning ring and two groups of radial support arms are also provided at the bottom of the casing socket 9 to limit and center the casing. Through these internal fixing structures, precise positioning of the Hall probe and the casing in the radial and axial directions can be achieved, effectively improving the measurement accuracy and repeatability.

[0036] To facilitate precise adjustment and reading, scale marks are also provided on the outside of the Hall probe socket 2 and the casing socket 9. Taking the bottom of the socket as the zero point, a circular scale line is engraved every 5 mm along the axial direction, and the corresponding values are marked. At the same time, an angular scale line is engraved every 10° along the circumferential direction on the outer surface of the lower component. Through these internal and external scales, the insertion depth of the Hall probe and the rotation angle of the casing can be precisely controlled, and the corresponding values can be intuitively read, which is convenient for data recording and comparison.

[0037] Embodiment 2

[0038] The upper component 1 is designed with a cylindrical structure, and its core part is the Hall probe socket 2 located in the center. This socket 2 is a precision-machined cylindrical channel, and its inner diameter is precisely calculated to match the sizes of magnetic field probes with common specifications on the market. This design ensures the stability of probe installation and the accuracy of positioning, which is the basis for the measurement accuracy of the entire device. On the outside of the socket, a left-turn locking wire mechanism 3 is provided. This mechanism 3 adopts a fine-thread design and forms a tight threaded connection with the upper component. This locking mechanism has two functions: First, it can firmly fix the probe, effectively preventing accidental movement of the probe during the measurement process and ensuring the stability of the measurement; Second, by adjusting the locking mechanism, the operator can precisely control the insertion depth of the probe, realize fine-tuning of the probe in the axial direction, and thus achieve the best measurement position. This design greatly improves the operation flexibility and measurement accuracy of the device.

[0039] The material selection of the upper component 1 has been deeply studied and optimized. While ensuring sufficient mechanical strength, the overall weight has been reduced as much as possible, improving the portability of the device. The surface of the component adopts an advanced surface treatment process, significantly enhancing the anti-slip performance. Even in a wet or greasy environment, it can ensure a stable grip for the operator, enhancing the adaptability of the device in various working environments.

[0040] The middle component 4 is designed with a carefully designed cylindrical structure. Its dimensions have been repeatedly calculated and experimentally verified. While ensuring sufficient operating space, the compact portability of the overall device has also been considered. This balanced design enables the device to meet the needs of professional measurements while not sacrificing portability, making it suitable for various on-site test scenarios. The middle component 4 is made of a highly transparent engineering plastic material. This innovative design allows the operator to directly observe the internal structure, which is beneficial for the operator to understand the working principle of the device and also facilitates daily maintenance and troubleshooting.

[0041] The outer surface of the middle component 4 is designed with unique anti-slip textures. These textures adopt a grid-like raised structure optimized by computer simulation, which not only significantly increases the effective hand-holding area but also greatly improves the comfort of holding and the operation stability through an ergonomic design. This design can effectively reduce the fatigue of the operator during long-term use and improve work efficiency.

[0042] At the core of the middle component 4 is a rotating shaft processed by special technology. This shaft is made of high-strength and high-precision alloy materials and is refined. Its surface is precision turned and ground to ensure smoothness and durability during rotation. The two ends of the rotating shaft are connected to the upper component and the lower component by innovative fixing methods. This connection method not only provides reliable support but also realizes flexible rotation function. The surface of the shaft is also subjected to special hardening treatment, and high-precision micro-bearings are set at key positions. These detailed designs significantly reduce the rotation resistance and improve the sensitivity and measurement accuracy of the overall device.

[0043] The lower component 7 also adopts a cylindrical structure design. A socket 9 for placing the magnetic element to be measured is carefully set at its inner center. This socket 9 is an open circular channel, and its inner diameter is optimized to be larger than the diameter of the common magnetic element housings on the market to accommodate various specifications of the measured parts. This design reflects the wide applicability and practical value of the present utility model. An elastic buffer device is innovatively set on the inner wall of the socket. This device is made of high-quality engineering rubber materials and has excellent elasticity and wear resistance. The thickness of the buffer device is accurately calculated, which can not only provide sufficient protection but also does not affect the measurement accuracy. This design not only plays a buffering and protective role but also can effectively center the measured part, significantly improving the measurement accuracy and reliability.

[0044] On the outside of the socket 9 of the lower component, a right-turn locking wire 8 is designed. This mechanism 8 is tightly connected to the lower component by fine threads. This design not only improves the locking force but also can achieve precise fixation of the measured part. The pitch of the locking mechanism is optimized, which not only ensures sufficient locking force but also makes the operation easier and more convenient. This design has two functions: First, it can firmly lock the measured part to prevent accidental movement during the measurement process; Second, through simple rotation operation, the user can easily load and unload the measured part, greatly improving the work efficiency.

[0045] On the outside of the upper component 1 of this device, a high-definition display screen is provided, which adopts advanced OLED display technology, with a size of 1.3 inches and a resolution of 128×64 pixels. This display screen is used to display the magnetic induction intensity value measured by the probe in real time, and has the characteristics of wide viewing angle and high contrast, and can be clearly readable even in strong light environments. The display screen is electrically connected to the probe through a flexible printed circuit (FPC), and adopts intelligent recognition technology, which can automatically identify the probe type and range, and automatically switch the coordinate system according to the probe position, greatly improving the use convenience.

[0046] On the outside of the lower component 7, there is a high-precision angle measuring device that uses incremental photoelectric encoder technology. This encoder can output 1000 pulses per revolution. By rotating synchronously with the component to be measured, the rotation angle can be accurately measured. The encoder is electrically connected to the microprocessor unit inside the upper component through a dedicated cable. The microprocessor performs real-time counting and processing of the pulse signals, and synchronously displays the angle value and the magnetic field value on the display screen, realizing the correlated measurement of the magnetic field strength and the angle.

[0047] To achieve portable operation, a group of high-performance rechargeable lithium batteries is integrated inside the clamping part of the middle component 4 of this device. The battery provides a stable working voltage of 3.7V. A Type-C charging interface and a power switch are set on the battery box cover. Users can connect to various external power sources through a standard USB cable to achieve fast charging, greatly improving the practicality and portability of the device.

[0048] In addition, this utility model also comes with a powerful data processing software that can be installed on a smart phone or a computer. Through the built-in micro WiFi module in the middle component, the device can wirelessly transmit the measurement data to the software side in real time. This software has powerful functions such as data storage, multi-dimensional analysis, and graph drawing, and can also automatically generate a standardized test report. More importantly, users can remotely control the magnetic positioning device through the software to achieve operations such as parameter adjustment and mode switching, greatly improving the flexibility and efficiency of the measurement process.

[0049] Through innovative structural design and advanced technology application, this embodiment realizes high-precision magnetic field measurement and positioning functions. Its modular design, user-friendly operation interface, wireless data transmission, and intelligent software analysis and other features not only meet the strict requirements of professional measurement, but also have portability and simplicity of operation. This design not only ensures the accuracy and reliability of the measurement, but also significantly improves the convenience of operation and work efficiency, making it an ideal tool in the field of magnetic component detection and research.

Claims

1. A small handheld portable central magnetic positioning device, characterized in that, Comprising: An upper component (1), a middle component (4), and a lower component (7), which are sequentially connected longitudinally; At the top of the upper component (1), there is an installation socket (2) for a Hall probe, and on the side, there is a left-turn locking wire (3); Outside the middle component (4), there is a clamping part (5), and inside, there is a rotating shaft (6) running through up and down, and this rotating shaft (6) connects the upper component (1) and the lower component (7); At the bottom of the lower component (7), there is a chassis socket (9), and on the side, there is a right-turn locking wire (8); Among them, the upper component (1) and the lower component (7) can rotate relative to the middle component (4) through the rotating shaft (6).

2. The small handheld portable central magnetic positioning device according to claim 1, wherein The Hall probe socket (2) is a cylindrical channel structure with adjustable depth.

3. The small handheld portable central magnetic positioning device according to claim 1, characterized in that, Both the left-turn locking wire (3) and the right-turn locking wire (8) are threaded structures, wherein: the left-turn locking wire (3) is threadedly connected to the upper component (1), and the right-turn locking wire (8) is threadedly connected to the lower component (7).

4. The small handheld portable central magnetic positioning device according to any one of claims 1 to 3, wherein The clamping part (5) is a cylindrical structure made of a transparent material, and its surface is provided with anti-slip textures.

5. The small handheld portable central magnetic positioning device according to any one of claims 1 to 3, wherein The rotating shaft (6) runs through the small handheld portable central magnetic positioning device and allows the lower component to rotate relative to the upper component.

6. The small handheld portable central magnetic positioning device according to any one of claims 1 to 3, wherein The chassis socket (9) is an open circular structure, and its inner wall is provided with an elastic gasket.

7. The small handheld portable central magnetic positioning device according to any one of claims 1 to 3, wherein Inside the upper component (1) and the lower component (7), there are multiple layers of fixed structures, including a Hall probe positioning ring (10) and a chassis positioning ring (11), and the Hall probe positioning ring (10) and the chassis positioning ring (11) are coaxially arranged.

8. The small handheld portable central magnetic positioning device according to claim 1, wherein Outside the Hall probe socket (2) and the chassis socket (9), there are scale marks.

Images