Magnetic steel detection device

Abstract

The utility model discloses a magnetic steel detection device, which belongs to the technical field of magnetic steel performance detection and comprises a detection table, a movable clamping assembly, an inductor and a display assembly, the movable clamping assembly and the inductor are mounted at two ends of the detection table, the movable clamping assembly is slidably connected with the detection table, the inductor is electrically connected with the display assembly, and the display assembly is electrically connected with the detection table. The movable clamping assembly is used for clamping magnetic steel, and the magnetic steel is in induction fit with the inductor; the movable clamping assembly is provided with a first moving position and a second moving position, and at the first moving position, the inductor and the magnetic steel are inducted to generate a first electric signal; at the second moving position, the inductor and the magnetic steel are inducted to generate a second electric signal; the display assembly receives the first electrical signal and the second electrical signal. The display assembly displays the magnetic fluxes of the magnetic steel at different positions after receiving the first electric signal and the second electric signal, whether the magnetic steel meets the requirement or not is determined according to the specified standard of the induction range, and the magnetic steel detection device can rapidly detect the performance of the magnetic steel.

Description

Technical Field

[0001] This utility model relates to the technical field of magnetic steel performance testing, and in particular to a magnetic steel testing device. Background Technology

[0002] The original definition of magnet steel is an aluminum-nickel-cobalt alloy. Magnet steel is made of several hard and strong metals, such as iron, aluminum, nickel, and cobalt. Sometimes it is made of copper, niobium, and tantalum. It is used to make ultra-hard permanent magnet alloys. The different metal compositions result in different magnetic properties and thus different applications. It is mainly used in various sensors, instruments, electronics, electromechanical, medical, teaching, automotive, aviation, and military technology fields.

[0003] Currently, there are few magnetic detection devices available for testing magnets. Hall effect sensors, based on the Hall effect induction principle, can be used to detect the magnetic flux of magnets. The core of Hall effect sensor detection lies in magnetic field direction, distance calibration, and signal processing. Depending on the requirements, either a switch type (simple triggering) or a linear type (precise measurement) can be selected. However, the results detected by Hall effect sensors cannot be fed back in a timely manner, and they cannot accurately detect the magnetic flux of magnets at different locations. Utility Model Content

[0004] The purpose of this invention is to improve the existing magnetic steel detection device, which cannot detect the magnetic flux of the magnetic steel at different positions, and to provide a magnetic steel detection device.

[0005] The technical solutions for achieving the above objectives include the following:

[0006] The magnet detection device includes:

[0007] The device includes a testing platform, a movable clamping assembly, a sensor, and a display assembly. The movable clamping assembly and the sensor are installed at both ends of the testing platform, and the movable clamping assembly is slidably connected to the testing platform. The sensor is electrically connected to the display assembly. The movable clamping assembly is used to clamp a magnet, and the magnet engages with the sensor.

[0008] The movable clamping assembly has a first movable position and a second movable position. In the first movable position, the sensor and the magnet generate a first electrical signal; in the second movable position, the sensor and the magnet generate a second electrical signal; the display assembly is used to receive the first electrical signal and the second electrical signal.

[0009] In one embodiment, the movable clamping assembly includes a first clamp, a second clamp, and a movable base. The movable base includes a first sliding plate, and the detection platform has a guide rail. The first sliding plate has a guide groove that cooperates with the guide rail. The first clamp is mounted on the first sliding plate, and the second clamp is mounted on the first clamp. The second clamp has a clamping position for clamping a magnet.

[0010] In one embodiment, the movable seat further includes a second sliding plate and an abutment, the first sliding plate is mounted on the second sliding plate, the second sliding plate is at least partially bent, the second sliding plate is at least partially disposed on the side wall of the detection table, and the first end of the abutment passes through the second sliding plate so that the abutment abuts against the side wall of the detection table.

[0011] In one embodiment, the first clamp includes a first clamping ring, a second clamping ring, a pin, a first clamping block, a second clamping block, and a bolt. The first clamping ring is mounted on a first sliding plate, and the first end of the second clamping ring is rotatably connected to the first end of the first clamping ring via the pin.

[0012] The first clamping block is installed at the second end of the first clamping ring, and the second clamping block is installed at the second end of the second clamping ring. The first clamping block and the second clamping block are connected by bolts.

[0013] The second clamp is disposed between the first clamping ring and the second clamping ring.

[0014] In one embodiment, the testing platform is provided with a scale in the moving direction of the first sliding plate, and the first sliding plate has a pointer for marking the scale.

[0015] In one embodiment, the second clamp includes a support body, an adjustment knob, and a clamping rod assembly. The clamping rod assembly includes at least two clamping rods. The support body has guide grooves, the number of which corresponds to the number of clamping rods. The clamping rods are at least partially disposed in the guide grooves and slide in cooperation with the inner wall of the support body within the guide grooves.

[0016] The direction of movement of any one of the clamping rods forms an angle with the axis of the support body, and the directions of movement of the two clamping rods intersect; the adjusting knob is sleeved on the outside of the support body, and the adjusting knob is threadedly engaged with the first end of the two clamping rods, and a clamping position is formed between the second ends of the two clamping rods;

[0017] The adjustment knob is used to adjust the position of the clamping rod assembly so that the clamping rod assembly has a first moving position and a second moving position. In the first moving position, the clamping position is smaller; in the second moving position, the clamping position is larger.

[0018] In one embodiment, the support body includes a support base, a sealing end cap, and a guide member. The sealing end cap and the guide member are respectively disposed at the front and rear ends of the support base. The guide member has a first guide hole. The outer wall of the support base is recessed to form the guide groove, and the guide groove communicates with the first guide hole.

[0019] In one embodiment, the support base further has a second guide hole, and a movable cavity is formed between the support base and the sealing end cap. The guide groove communicates with the movable cavity through the second guide hole.

[0020] In one embodiment, the support body is cone-shaped, and the clamping position is located at the smallest end of the support body;

[0021] The guide groove extends along the inclined wall of the supporting body.

[0022] In one embodiment, the clamping rod assembly includes three clamping rods distributed circumferentially around the support body;

[0023] The inner wall of the clamping rod near the clamping position has an arc-shaped surface, which is used to fit against the outer wall of the magnet;

[0024] The clamping rod has a rack at one end away from the clamping position, and the adjusting thread has an internal thread that engages with the rack.

[0025] The technical solution provided by this utility model has the following advantages and effects:

[0026] The movable clamping assembly holds the magnet and is driven to move on the testing table. When the movable clamping assembly is in the first moving position, the sensor senses the magnet and generates a first electrical signal. When the movable clamping assembly is in the second moving position, the sensor senses the magnet and generates a second electrical signal. After receiving the first and second electrical signals, the display assembly displays the magnetic flux of the magnet at different positions. It can accurately determine whether the magnet meets the requirements according to the specified standard of the sensing range. This magnet testing device can quickly detect the performance of the magnet. Attached Figure Description

[0027] The accompanying drawings illustrate specific examples of the technical solutions described in this utility model, and together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this utility model.

[0028] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0029] Figure 1 This is a schematic diagram of the second clamp in one embodiment of the present invention. Figure 1 ;

[0030] Figure 2 This is an exploded view of the second clamp in one embodiment of the present invention;

[0031] Figure 3This is a cross-sectional view of the second clamp in one embodiment of the present invention. Figure 1 ;

[0032] Figure 4 This is a cross-sectional view of the second clamp in one embodiment of the present invention. Figure 2 ;

[0033] Figure 5 This is a schematic diagram of a support base in one embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of a magnet detection device in one embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the testing station in one embodiment of the present invention;

[0036] Figure 8 This is a side view of the testing station in one embodiment of the present invention;

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Second clamp;

[0039] 1. Support base; 11. Support block; 111. Guide groove; 12. First support plate; 121. Second guide hole; 2. Support body; 21. Sealing end cap; 211. Movable cavity; 212. Second support plate; 213. Support ring; 214. Connecting block; 22. Guide component; 221. First guide hole; 23. First fastener; 24. Second fastener; 3. Adjustment knob; 301. Internal thread; 4. Clamping rod; 41. Clamping position; 42. Clamping part; 43. Rack;

[0040] 200. Magnetic steel detection device;

[0041] 5. Testing table; 51. Scale; 52. Guide block; 6. Moving clamping assembly; 61. First clamp; 611. First clamping ring; 612. Second clamping ring; 613. Pin; 614. First clamping block; 615. Second clamping block; 616. Bolt; 62. Moving seat; 621. Abutment; 622. First sliding plate; 623. Second sliding plate; 63. Pointer; 7. Sensor; 71. Base; 72. Data cable; 73. Hall element; 8. Display assembly; 81. Power cable. Detailed Implementation

[0042] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0043] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0044] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0045] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0046] Example 1

[0047] This utility model also proposes a magnetic steel detection device 200, such as... Figures 6 to 8 As shown, the device includes a testing platform 5, a movable clamping assembly 6, a sensor 7, and a display assembly 8. The movable clamping assembly 6 and the sensor 7 are mounted at both ends of the testing platform 5, and the movable clamping assembly 6 is slidably connected to the testing platform 5. The sensor 7 is electrically connected to the display assembly 8. The movable clamping assembly 6 is used to clamp a magnet, and the magnet and the sensor 7 are inductively engaged. The movable clamping assembly 6 has a first moving position and a second moving position. In the first moving position, the sensor 7 and the magnet generate a first electrical signal. In the second moving position, the sensor 7 and the magnet generate a second electrical signal. The display assembly 8 is used to receive the first and second electrical signals.

[0048] In this embodiment, the sensor 7 includes a base 71, a data cable 72, and a Hall element 73. The Hall element 73 is fixed to the upper end of the base 71, and the lower end of the base 71 is fixed to the detection stage 5. The Hall element 73 is electrically connected to the first end of the display component 8 through the data cable 72. The Hall element 73 generates an electrical signal that is transmitted to the display component 8. The second end of the display component 8 is electrically connected to the power supply through the power cable 81.

[0049] Specifically, the movable clamping assembly 6 clamps the magnet and is driven to move on the testing table 5. When the movable clamping assembly 6 is in the first moving position, the sensor 7 senses the magnet and generates a first electrical signal. When the movable clamping assembly 6 is in the second moving position, the sensor 7 senses the magnet and generates a second electrical signal. After receiving the first and second electrical signals, the display assembly 8 displays the magnetic flux of the magnet at different positions. It can accurately determine whether the magnet meets the requirements according to the specified standard of the sensing range. This magnet detection device 200 can quickly detect the performance of the magnet.

[0050] In some embodiments, the movable clamping assembly 6 includes a first clamp 61, a second clamp 100, and a movable base 62. The movable base 62 includes a first sliding plate 622, and the detection table 5 has a guide block 52. The first sliding plate 622 has a guide groove that cooperates with the guide block 52. The first clamp 61 is mounted on the first sliding plate 622, and the second clamp 100 is mounted on the first clamp 61. The second clamp 100 has a clamping position 41 for clamping a magnet. Specifically, by slidingly engaging the guide block 52 with the guide groove, the first sliding plate 622 slides on the detection table 5, ensuring that the magnet moves in the same direction on the detection table 5. The first clamp 61 is used to fix the second clamp 100, and the second clamp 100 is used to clamp the magnet. The first clamp 61 and the second clamp 100 are detachably installed, making it convenient for the second clamp 100 to be removed from the detection table 5. Preferably, the guide groove is a dovetail groove, and the shape of the guide block 52 corresponds to the shape of the dovetail groove, thereby improving the stability of the first sliding plate 622 moving on the guide block 52.

[0051] In some embodiments, the movable base 62 further includes a second sliding plate 623 and an abutment 621. A first sliding plate 622 is mounted on the second sliding plate 623. The second sliding plate 623 is at least partially bent and is at least partially disposed on the side wall of the detection table 5. The first end of the abutment 621 passes through the second sliding plate 623 so that the abutment 621 abuts against the side wall of the detection table 5. Specifically, when the first sliding plate 622 drives the second sliding plate 623 to move to a first moving position or a second moving position, it drives the abutment 621 to be fixed to the side wall of the detection table 5. The abutment 621 improves the stability of the movable clamping assembly 6 in the first moving position or the second moving position. Preferably, the first end of the abutment 621 is threaded into the inner wall of the second sliding plate 623 to facilitate adjustment of the stability of the movable clamping assembly 6 on the detection table 5.

[0052] Preferably, the first clamp 61 includes a first clamping ring 611, a second clamping ring 612, a pin 613, a first clamping block 614, a second clamping block 615, and a bolt 616. The first clamping ring 611 is mounted on the first sliding plate 622, and the first end of the second clamping ring 612 is rotatably connected to the first end of the first clamping ring 611 via the pin 613. The first clamping block 614 is mounted on the second end of the first clamping ring 611, and the second clamping block 615 is mounted on the second end of the second clamping ring 612. The first clamping block 614 and the second clamping block 615 are connected by the bolt 616. The second clamp 100 is disposed between the first clamping ring 611 and the second clamping ring 612.

[0053] Specifically, an annular opening is formed between the first clamping ring 611 and the second clamping ring 612, which is used to place the second clamp 100. When installing the second clamp 100, the first clamping ring 611 and the second clamping ring 612 are opened, the second clamp 100 is placed at the opening, the first clamping ring 611 and the second clamping ring 612 are closed, and the first clamping block 614 and the second clamping block 615 are brought closer by rotating the bolt 616, so that the first clamping ring 611 and the second clamping ring 612 clamp the second clamp 100.

[0054] Preferably, the testing platform 5 is provided with a scale 51 in the moving direction of the first sliding plate 622, and the first sliding plate 622 has a pointer 63 marked on the scale 51. Specifically, when the first sliding plate 622 moves to the first moving position, the pointer 63 records the first distance between the magnet and the sensor 7 through the marked scale 51. When the first sliding plate 622 moves to the second moving position, the pointer 63 records the second distance between the magnet and the sensor 7 through the marked scale 51. By comparing the first and second distances, and the magnetic flux at the first and second moving positions, the display component 8 displays the magnetic flux of the magnet at different positions, facilitating comparison and output of conclusions to see if the tested magnet meets the product specification requirements.

[0055] This utility model also proposes a detection method for a magnet detection device 200, characterized by comprising the following steps:

[0056] Step 1: Fix the second clamp 100 with a magnet onto the movable clamping assembly 6;

[0057] Step 2: Drive the moving clamping assembly 6 to move on the detection stage 5;

[0058] Step 3: When the magnet is brought close to the sensor 7, the sensor 7 generates a first electrical signal, and the display component 8 generates a first magnetic flux after receiving the first electrical signal.

[0059] Step 4: The magnet moves away from the sensor 7, the sensor 7 generates a second electrical signal, and the display component 8 generates a second magnetic flux after receiving the second electrical signal.

[0060] Using the above method, the magnetic flux of magnets of different diameters at different positions on the testing stage 5 can be quickly detected. The display component 8 displays the magnetic flux of the magnet at different positions, which is convenient for comparison and output of conclusions. This detection method can accurately determine whether the magnet meets the requirements according to the specified standards of the sensing range.

[0061] Example 2

[0062] like Figures 1 to 5As shown, the second clamp 100 includes a support body 2, an adjusting knob 3, and three clamping rods 4, which are distributed circumferentially on the support body 2. The support body 2 has guide grooves 111, the number of which corresponds to the number of clamping rods 4. At least partially, each clamping rod 4 is disposed within a guide groove 111 and slides within the guide groove 111 against the inner wall of the support body 2. The moving directions of the clamping rods 4 form an angle with the axis of the support body 2, and the moving directions of the three clamping rods 4 intersect. The adjusting knob 3 is sleeved on the outside of the support body 2 and threadedly engages with the first ends of the three clamping rods 4, forming a clamping position 41 between the second ends of the three clamping rods 4. The adjusting knob 3 is used to adjust the position of the three clamping rods 4, so that the three clamping rods 4 have a first moving position and a second moving position. In the first moving position, the clamping position 41 is smaller; in the second moving position, the clamping position 41 is larger. The adjustment knob 3 is used to drive the three clamping rods 4 to move simultaneously, so that the three clamping rods 4 can adjust or clamp magnets of different diameters during the movement.

[0063] Specifically, the clamping position 41 is used to place the magnet, which abuts against the inner wall of the second end of the three clamping rods 4 at the clamping position 41. By rotating the adjusting knob 3, which is threadedly engaged with the three clamping rods 4, the three clamping rods 4 are driven to move simultaneously, so that the three clamping rods 4 have a movement path that moves closer to or away from the central axis of the support body 2. When the three clamping rods 4 move closer to the central axis of the support body 2, the clamping position 41 of the three clamping rods 4 becomes smaller; when the three clamping rods 4 move away from the central axis of the support body 2, the clamping position 41 of the three clamping rods 4 becomes larger. Therefore, the second clamp 100 can accommodate magnets of different diameters and fix magnets of different diameters.

[0064] Furthermore, the support body 2 has a guide groove 111 corresponding to the clamping rod 4. The guide groove 111 is used to allow the clamping rod 4 to move within the support body 2, and the guide groove 111 plays a certain guiding role for the clamping rod 4 within the support body 2, improving the stability of the guide rod 4 during movement. When the movement of the three clamping rods 4 is stable, the size of its clamping position 41 is also relatively stable, thereby improving the stability of clamping the magnet.

[0065] Furthermore, in the process of adjusting the size of the clamping position 41, it is only necessary to rotate the adjustment knob 3 clockwise or counterclockwise, which greatly improves the convenience of operating the second clamp 100.

[0066] Preferably, the clamping rod 4 includes a rack 43 and a clamping part 42. The clamping part 42 and the rack 43 are an integral structure. The inner wall of the adjusting knob 3 has an internal thread 301 that mates with the rack 43. The rack 43 engages with the internal thread of the adjusting knob 3 at a certain angle. Rotating the adjusting knob 3 clockwise and counterclockwise causes the three racks to move back and forth in a tapered manner, thereby changing the clamping diameter of the three racks to clamp magnets of different diameters. The three clamping parts 42 support the magnet in the circumferential direction, improving the stability of the magnet in the clamping position 41.

[0067] Furthermore, the clamping part 42 is made of a non-magnetic material. When the three clamping parts 42 clamp the magnet, the clamping parts 42 avoid consuming the magnetism of the magnet and improve the accuracy of magnet detection.

[0068] The clamping principle of the second clamp 100 is as follows: Rotating the adjusting knob 3 clockwise moves the three clamping rods 4 toward the central axis of the supporting body 2. When the magnet is located on the central axis of the supporting body 2, it is fixed by the moving clamping rods 4. Rotating the adjusting knob 3 counterclockwise moves the three clamping rods 4 away from the central axis of the supporting body 2, causing the magnet to disengage from the clamping position 41.

[0069] To facilitate the assembly of the support body 2, in some embodiments, the support body 2 includes a support base 1, a sealing end cap 21, and a guide member 22. The sealing end cap 21 and the guide member 22 are respectively disposed at the front and rear ends of the support base 1. An adjustment knob 3 is used to be sleeved on the outer wall of the support base 1. The front and rear ends of the support base 1 are used to fix the guide member 22 and the sealing end cap 21. During installation, the adjustment knob 3 can be sleeved on the support base 1 first, and then the guide member 22 and the sealing end cap 21 can be installed. The guide member 22 and the sealing end cap 21 can limit the adjustment knob 3, so that the position of the adjustment knob 3 on the support body 2 is relatively stable.

[0070] Furthermore, the guide member 22 has a first guide hole 221, and the outer wall of the support base 1 is recessed to form a guide groove 111, which communicates with the first guide hole 221. The first guide hole 221 is used for the first end of the clamping rod 4 to pass through, so that the clamping rod 4 at least partially enters the guide groove 111. The first guide hole 221 is used for the first end of the clamping rod 4 to pass through the guide member 22. The number of first guide holes 221 corresponds to the number of clamping rods 4, and the first guide holes 221 are used to guide the clamping rod 4 into the guide groove 111. Moreover, the adjusting knob 3 is sleeved on the outside of the support base 1, and the inner wall of the adjusting knob 3 is used to block the opening of the guide groove 111. When the clamping rod 4 enters the guide groove 111, the inner wall of the adjusting knob 3 is exactly located on the outer wall of the clamping rod 4, so that the internal thread 301 of the adjusting knob 3 engages with the rack 401 of the clamping rod 4.

[0071] Preferably, the support base 1 also has a second guide hole 121, forming a movable cavity 211 between the support base 1 and the sealing end cap 21. The guide groove 111 communicates with the movable cavity 211 through the second guide hole 121. The second guide hole 121 is used to allow the clamping rod 4 to enter the movable cavity 211. Since the movable cavity 211 is a sealed space, the second end of the clamping rod 4 is hidden inside the movable cavity 211. When the three clamping rods 4 are in the first moving position, they are outside the movable cavity 211, and the clamping position 41 becomes smaller, which is used to clamp magnets with smaller diameters. When the three clamping rods 4 are in the second moving position, they are at least partially inside the movable cavity 211, and the clamping position 41 becomes larger, which is used to clamp magnets with larger diameters. The movable cavity 211 has space for the three clamping rods 4 to move. The three clamping rods 4 can be adjusted by the adjusting knob 3 to accommodate magnets of different sizes.

[0072] Preferably, the support base 1 includes a support block 11 and a first support plate 12. Both the support block 11 and the first support plate 12 are circular. The outer diameter of the support block 11 is smaller than the outer diameter of the first support plate 12. The support block 11 and the first support plate 12 are fixed coaxially. The guide groove 111 is formed on the outer wall of the support block 11, and the second guide hole 121 is formed on the first support plate 12.

[0073] Specifically, the front and rear ends of the support block 11 are used to support the guide member 22 and the sealing end cap 21. The adjusting knob 3 is located between the guide member 22 and the first support plate 12. The first support plate 12 and the guide member 22 are used to restrict the adjusting knob 3, preventing the adjusting knob 3 from moving along the axis of the support body 2 when rotating, thereby improving the stability of the adjusting knob 3 during adjustment. The bottom wall of the guide groove 111 is used to support the clamping rod 4, so that the adjusting knob 3 and the second end of the clamping rod 4 are threaded together.

[0074] Preferably, the sealing cover 21 includes a second support plate 212, a support ring 213, and a connecting block 214. The first end of the connecting block 214 is fixed to the support base 1, and the second end of the connecting block 214 is installed on the inner end of the second support plate 212. The first end of the support ring 213 is installed on the outer end of the second support plate 212, and the second end of the support ring 213 is sleeved on at least a portion of the support base 1. A movable cavity 211 is formed between the inner wall of the support ring 213 and the second support plate 212. Specifically, the sealing end cover 21 is used to seal the end of the support base 1 to prevent the clamping rod 4 on the support base 1 from being exposed. At the same time, the sealing end cover 21 has a movable cavity 211 for the clamping rod 4 to move, which facilitates the movement of the clamping rod 4 in the movable cavity 211 to adjust the size of the clamping position 41.

[0075] Preferably, the support body 2 also has a first fastener 23 and a second fastener 24. The connecting block 214 is fixed to the rear end of the support block 11 by the first fastener 23, and the guide 22 is fixed to the front end of the support block 11 by the second fastener 24.

[0076] Preferably, the support body 2 is cone-shaped, and the clamping position 41 is located at the smallest end of the support body 2; the guide groove 111 extends along the inclined wall of the support body 2. Specifically, since the three clamping rods 4 move within the guide groove 111 to adjust the size of the clamping position 41, the moving direction of the clamping rods 4 forms an angle with the axis of the support body 2; therefore, by setting the support body 2 to a cone shape, the volume of the support body 2 can be reduced as much as possible, and certain materials can be saved, reducing the production cost of the second clamp 100, while making the second clamp 100 more miniaturized.

[0077] Preferably, the inner wall of the clamping rod 4 near the clamping position 41 has an arc-shaped surface, which is used to fit against the outer wall of the magnet. Specifically, the arc-shaped surface is used to fit against the outer arc surface of the magnet, thereby increasing the contact area between the magnet and the clamping rod 4 and improving the stability of the three clamping rods 4 in clamping the magnet.

[0078] When referencing drawings, new features are explained. To avoid redundant references to drawings that would make the description less concise, features already described will not be referenced again on the drawings if the description is clear.

[0079] The purpose of the above embodiments is to reproduce and derive the technical solution of this utility model by way of example, and to fully describe the technical solution, purpose and effect of this utility model. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosed content of this utility model, and it is not intended to limit the protection scope of this utility model.

[0080] The above embodiments are not an exhaustive list based on the present invention, and there may be other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. A magnet detection device, characterized in that, include: The device includes a testing platform, a movable clamping assembly, a sensor, and a display assembly. The movable clamping assembly and the sensor are installed at both ends of the testing platform, and the movable clamping assembly is slidably connected to the testing platform. The sensor is electrically connected to the display assembly. The movable clamping assembly is used to clamp a magnet, and the magnet engages with the sensor. The movable clamping assembly has a first movable position and a second movable position. In the first movable position, the sensor and the magnet generate a first electrical signal; in the second movable position, the sensor and the magnet generate a second electrical signal; the display assembly is used to receive the first electrical signal and the second electrical signal.

2. The magnet detection device as described in claim 1, characterized in that, The movable clamping assembly includes a first clamp, a second clamp, and a movable base. The movable base includes a first sliding plate. The detection platform has a guide rail, and the first sliding plate has a guide groove that cooperates with the guide rail. The first clamp is mounted on the first sliding plate, and the second clamp is mounted on the first clamp. The second clamp has a clamping position for clamping a magnet.

3. The magnet detection device as described in claim 2, characterized in that, The movable seat further includes a second sliding plate and an abutment. The first sliding plate is mounted on the second sliding plate. The second sliding plate is at least partially bent and is at least partially disposed on the side wall of the testing table. The first end of the abutment passes through the second sliding plate so that the abutment abuts against the side wall of the testing table.

4. The magnet detection device as described in claim 2, characterized in that, The first clamp includes a first clamping ring, a second clamping ring, a pin, a first clamping block, a second clamping block, and a bolt. The first clamping ring is mounted on a first sliding plate, and the first end of the second clamping ring is rotatably connected to the first end of the first clamping ring via the pin. The first clamping block is installed at the second end of the first clamping ring, and the second clamping block is installed at the second end of the second clamping ring. The first clamping block and the second clamping block are connected by bolts. The second clamp is disposed between the first clamping ring and the second clamping ring.

5. The magnet detection device as described in claim 2, characterized in that, The testing platform is provided with a scale in the moving direction of the first sliding plate, and the first sliding plate has a pointer for marking the scale.

6. The magnet detection device as described in claim 2, characterized in that, The second clamp includes a support body, an adjustment knob, and a clamping rod assembly. The clamping rod assembly includes at least two clamping rods. The support body has guide grooves, the number of which corresponds to the number of clamping rods. The clamping rods are at least partially disposed in the guide grooves and slide in cooperation with the inner wall of the support body within the guide grooves. The direction of movement of any one of the clamping rods forms an angle with the axis of the support body, and the directions of movement of the two clamping rods intersect; the adjusting knob is sleeved on the outside of the support body, and the adjusting knob is threadedly engaged with the first end of the two clamping rods, and a clamping position is formed between the second ends of the two clamping rods; The adjustment knob is used to adjust the position of the clamping rod assembly so that the clamping rod assembly has a first moving position and a second moving position. In the first moving position, the clamping position is smaller; in the second moving position, the clamping position is larger.

7. The magnet detection device as described in claim 6, characterized in that, The support body includes a support base, a sealing end cap, and a guide member. The sealing end cap and the guide member are respectively disposed at the front and rear ends of the support base. The guide member has a first guide hole. The outer wall of the support base is recessed to form the guide groove, and the guide groove communicates with the first guide hole.

8. The magnet detection device as described in claim 7, characterized in that, The support base also has a second guide hole, and a movable cavity is formed between the support base and the sealing end cap. The guide groove communicates with the movable cavity through the second guide hole.

9. The magnet detection device as described in claim 6, characterized in that, The supporting body is cone-shaped, and the clamping position is located at the smallest end of the supporting body; The guide groove extends along the inclined wall of the supporting body.

10. The magnet detection device as described in claim 6, characterized in that, The clamping rod assembly includes three clamping rods, which are distributed circumferentially in the supporting body. The inner wall of the clamping rod near the clamping position has an arc-shaped surface, which is used to fit against the outer wall of the magnet; The clamping rod has a rack at one end away from the clamping position, and the adjusting knob has an internal thread that engages with the rack.

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