A NdFeB permanent magnet polarity detection device

Abstract

The present invention discloses a NdFeB permanent magnet polarity detection device, which belongs to the field of polarity detection devices. A NdFeB permanent magnet polarity detection device comprises a workbench, a mounting member is provided above the workbench, an adjustment component for driving the mounting member to move is provided on the surface of the workbench, a clamping component for fixing a workpiece is provided on the mounting member, a limit component for supporting and limiting the workpiece is transmitted on the clamping component, a side plate is fixed to one side surface of the workbench, and a polarity detection instrument is fixedly installed on the surface of the side plate; the structure of the present invention is relatively simple, and the workpiece to be detected is automatically transported to the bottom of the detection area through the transmission component, and the workpiece to be detected is conveniently clamped, fixed and limited by the mutual cooperation of the clamping component and the limit component, and the workpiece is moved up to the detection area by the adjustment component, with automated mechanical operation and convenient use.

Description

Technical Field

[0001] The present invention relates to the technical field of polarity detection devices, and in particular to a NdFeB permanent magnet polarity detection device. Background Art

[0002] Neodymium iron boron (NdFeB) permanent magnets are based on the intermetallic compound Nd2Fe14B. Compared to cast Al-Ni-Co permanent magnets and ferrite permanent magnets, NdFeB possesses an extremely high magnetic energy product and coercive force, capable of lifting objects up to 640 times its own weight. This high energy density has led to its widespread application in modern industry and electronics. Before use, these permanent magnets require saturation magnetization to impart magnetic properties. After magnetization, the polarity of the magnets must be verified by testing equipment to ensure they meet the required polarity. However, existing devices for testing permanent magnetic workpieces typically require manual handling of the workpieces for testing. This labor-intensive process can lead to the workpiece dropping if held for extended periods, resulting in poor stability and inconvenient operation. Furthermore, the device suffers from low efficiency and increases production costs. Therefore, we propose a device for testing the polarity of NdFeB permanent magnets. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem that most of the existing technologies use manual labor to pick up the workpiece for testing, which has high labor intensity, is prone to falling when held in hand for a long time, has poor stability, is very inconvenient to operate, and has poor working efficiency when the device is used, increasing production costs. A neodymium iron boron permanent magnet polarity detection device is proposed to solve the problem that most of the existing technologies use manual labor to pick up the workpiece for testing, which has high labor intensity, is prone to falling when held in hand for a long time, has poor stability, is very inconvenient to operate, and has poor working efficiency when used, increasing production costs.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A NdFeB permanent magnet polarity detection device comprises a workbench, a mounting piece is provided above the workbench, an adjustment component for driving the mounting piece to move is provided on the surface of the workbench, a clamping component for fixing a workpiece is provided on the mounting piece, a limit component for supporting and limiting the workpiece is transmitted on the clamping component, a side plate is fixed to one side surface of the workbench, a polarity detection instrument is fixedly installed on the surface of the side plate, a transmission component for driving the workpiece to be transported is provided on the workbench, and a placement box is provided on the workbench below one side of the transmission component.

[0006] Preferably, the adjustment assembly includes a fixed plate fixed to the surface of the workbench, a first electric push rod is fixed to the surface of the fixed plate, a connecting block is fixed to the output end of the first electric push rod, a slide groove is provided on the top surface of the workbench, a slider slides inside the slide groove, the end of the slider is fixedly connected to the connecting block, a second electric push rod is installed on the top of the connecting block, and the top of the second electric push rod is fixedly connected to the mounting piece.

[0007] Preferably, the clamping assembly includes a first motor fixed on the surface of the mounting member, the output end of the first motor passes through the mounting member and is fixed with a first rotating shaft, the surface of the first rotating shaft is fixed with a first tooth connecting rod, one end of the first tooth connecting rod is rotated with a first clamping rod through a pin shaft, the surface of the first clamping rod is rotated with a limiting rod through a pin shaft, and one end of the limiting rod is connected to the surface of the mounting member through a pin shaft.

[0008] Preferably, the surface of the first tooth connecting rod is meshed with a second tooth connecting rod, a second rotating shaft is fixed at the axis center of one end of the second tooth connecting rod, the end of the second rotating shaft is rotatably connected to the mounting member through a bearing, the other end of the second tooth connecting rod is rotatably connected to a second clamping rod through a pin shaft, the surface of the second clamping rod is rotatably connected to a connecting rod through a pin shaft, the end of the connecting rod is rotatably connected to the surface of the mounting member through a pin shaft, and anti-slip rubber blocks are fixed to the surfaces of the second clamping rod and the first clamping rod.

[0009] Preferably, the limiting assembly includes a driving wheel fixed on the surface of the first rotating shaft, the surface of the driving wheel is driven by a driven wheel through a belt, a rotating rod is fixed at the axis of the driven wheel, the end of the rotating rod passes through the mounting piece and is rotatably connected to the bottom inner wall of the mounting piece through a bearing, a worm is provided on the surface of the rotating rod, a turbine is engaged with the surface of the worm, a screw is fixed at the axis of the turbine, and the surface of the screw is rotatably connected to the mounting piece through a bearing.

[0010] Preferably, one end of the screw rod is threadedly connected to a threaded sleeve, a support plate is fixed to the end of the threaded sleeve, a baffle is fixed to the top surface of the support plate, telescopic rods are fixed on both sides of the surface of the support plate located on the threaded sleeve, and the ends of the telescopic rods are fixedly connected to the mounting piece.

[0011] Preferably, the transmission component includes a second motor fixed on the surface of one side of the workbench, the output end of the second motor passes through the workbench and is fixed with a first transmission shaft, the end of the first transmission shaft is rotatably connected to the workbench through a bearing, a first transmission roller is fixed on the surface of the first transmission shaft, a conveyor belt is transmitted on the surface of the first transmission roller, a second transmission roller is transmitted on the surface of the conveyor belt, a second transmission shaft is fixed at the axis center of the second transmission roller, the end of the second transmission shaft is rotatably connected to the workbench through a bearing, and a partition bar is fixed on the surface of the conveyor belt.

[0012] Preferably, a protective plate is fixed to the top surface of the placement box.

[0013] Preferably, a limiting block is fixed on the top of the workbench, a cylinder is fixed on one side surface of the limiting block, and a pushing plate is fixed on the end of the cylinder.

[0014] Preferably, one side surface of the workbench is rotatably connected to a box door via a hinge, and a handle is installed on the surface of the box door.

[0015] Compared with the prior art, the present invention provides a NdFeB permanent magnet polarity detection device, which has the following beneficial effects:

[0016] 1. The NdFeB permanent magnet polarity detection equipment can conveniently drive the mounting part to be adjusted to a suitable position through the adjustment component arranged on the workbench, and conveniently clamp and fix the workpiece to be tested through the clamping component on the mounting part, so as to facilitate the equipment to better detect the workpiece.

[0017] 2. The NdFeB permanent magnet polarity detection device drives the limit assembly to move in conjunction with the clamping assembly on the mounting part, so that the limit assembly supports and limits the bottom of the clamped workpiece, improves the clamping stability, prevents the workpiece from being displaced, and facilitates the upward movement of the clamped workpiece through the adjustment assembly, and uses the polarity detection instrument to perform polarity detection.

[0018] 3. The NdFeB permanent magnet polarity detection equipment can conveniently place the NdFeB permanent magnet material to be tested on the transmission component set on the workbench, and automatically transport it to the area to be tested, which is convenient for the equipment to perform detection operations, automated operation, easy to use, and effectively improve its work efficiency.

[0019] The parts not involved in this device are the same as the existing technology or can be implemented by using the existing technology. The structure of the present invention is relatively simple. The workpiece to be inspected is automatically transported to the bottom of the inspection area through the transmission component. The clamping component and the limit component cooperate with each other to facilitate the clamping and fixed limit of the workpiece to be inspected. The adjustment component is used to move the workpiece up to the inspection area. The mechanical operation is automated and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a NdFeB permanent magnet polarity detection device proposed by the present invention;

[0021] Figure 2 This is a side sectional view of a NdFeB permanent magnet polarity detection device proposed by the present invention;

[0022] Figure 3 The present invention proposes Figure 2 Enlarged view of area A in the middle;

[0023] Figure 4 This is a schematic diagram of the partial structure of the clamping assembly proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the local structure of the limiting component proposed in the present invention;

[0025] Figure 6 A top view of the polarity detection device proposed by the present invention;

[0026] Figure 7 This is another side cross-sectional view of the polarity detection device proposed by the present invention.

[0027] In the figure: 1. Workbench; 2. Mounting member; 3. Adjustment assembly; 301. Fixing plate; 302. First electric push rod; 303. Connecting block; 304. Slide; 305. Slider; 306. Second electric push rod; 4. Clamping assembly; 401. First motor; 402. First rotating shaft; 403. First toothed connecting rod; 404. First clamping rod; 405. Limiting rod; 406. Second toothed connecting rod; 407. Second rotating shaft; 408. Second clamping rod; 409. Connecting rod; 5. Limiting assembly; 501. Driving wheel; 502. Driven wheel; 503, rotating rod; 504, worm; 505, turbine; 506, lead screw; 507, threaded sleeve; 508, support plate; 509, baffle; 510, telescopic rod; 6, side panel; 7, polarity detection instrument; 8, transmission component; 801, second motor; 802, first transmission shaft; 803, first transmission roller; 804, conveyor belt; 805, second transmission roller; 806, second transmission shaft; 807, partition bar; 9, placement box; 10, protective plate; 11, limit block; 12, cylinder; 13, push plate; 14, box door. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0030] Example 1:

[0031] Reference Figure 1-7A NdFeB permanent magnet polarity detection device comprises a workbench 1, a mounting part 2 is provided above the workbench 1, an adjusting component 3 for driving the mounting part 2 to move is provided on the surface of the workbench 1, a clamping component 4 for fixing the workpiece is provided on the mounting part 2, a limiting component 5 for supporting and limiting the workpiece is transmitted on the clamping component 4, a side plate 6 is fixed to the surface of one side of the workbench 1, a polarity detection instrument 7 is fixedly installed on the surface of the side plate 6, a transmission component 8 for driving the workpiece to be transported is provided on the workbench 1, and a placement box 9 is provided on the workbench 1 below one side of the transmission component 8.

[0032] When the workpiece is detected, the position of the workpiece is adjusted by the adjusting component 3 on the workbench 1, so that the clamping component 4 on the mounting member 2 can clamp and fix the workpiece, and the workpiece can be picked up and brought close to the polarity detection instrument 7 on the side plate 6 for polarity detection. The limit assembly 5 provided on the mounting member 2 is used to drive the limit assembly 5 to move in a linked manner, so that the workpiece is supported and limited by the limit assembly 5 during the clamping process, which plays a good stabilizing role and prevents it from falling and displacing during detection. When the workpiece is detected to be unqualified, the unqualified products are collected and stored in a centralized manner through the placement box 9, which is convenient for classification, thereby effectively improving the work efficiency of the staff.

[0033] Example 2:

[0034] Reference Figure 1-7 A NdFeB permanent magnet polarity detection device comprises a workbench 1, a mounting part 2 is provided above the workbench 1, an adjusting component 3 for driving the mounting part 2 to move is provided on the surface of the workbench 1, a clamping component 4 for fixing the workpiece is provided on the mounting part 2, a limiting component 5 for supporting and limiting the workpiece is transmitted on the clamping component 4, a side plate 6 is fixed to the surface of one side of the workbench 1, a polarity detection instrument 7 is fixedly installed on the surface of the side plate 6, a transmission component 8 for driving the workpiece to be transported is provided on the workbench 1, and a placement box 9 is provided on the workbench 1 below one side of the transmission component 8.

[0035] The adjustment component 3 includes a fixed plate 301 fixed to the surface of the workbench 1, a first electric push rod 302 is fixed to the surface of the fixed plate 301, a connecting block 303 is fixed to the output end of the first electric push rod 302, a slide groove 304 is provided on the top surface of the workbench 1, a slider 305 slides inside the slide groove 304, the end of the slider 305 is fixedly connected to the connecting block 303, a second electric push rod 306 is installed on the top of the connecting block 303, and the top of the second electric push rod 306 is fixedly connected to the mounting member 2.

[0036] In the present invention, the first electric push rod 302 is started to drive the connecting block 303 to move, and the second electric push rod 306 is driven to move by the connecting block 303 to adjust the left and right positions of the mounting member 2, so that the clamping assembly 4 and the limit assembly 5 can better clamp and contact the workpiece being conveyed. The slider 305 slides inside the slide groove 304 to facilitate the movement and limit of the connecting block 303. The second electric push rod 306 is started to drive the mounting member 2 to move up and down, so that the clamped workpiece can be lifted to the bottom of the polarity detection instrument 7. The detection probe on the polarity detection instrument 7 is used to detect the polarity of the workpiece, eliminating the trouble of manual picking and saving labor intensity.

[0037] Example 3:

[0038] Reference Figure 1-7 A NdFeB permanent magnet polarity detection device comprises a workbench 1, a mounting part 2 is provided above the workbench 1, an adjusting component 3 for driving the mounting part 2 to move is provided on the surface of the workbench 1, a clamping component 4 for fixing the workpiece is provided on the mounting part 2, a limiting component 5 for supporting and limiting the workpiece is transmitted on the clamping component 4, a side plate 6 is fixed to the surface of one side of the workbench 1, a polarity detection instrument 7 is fixedly installed on the surface of the side plate 6, a transmission component 8 for driving the workpiece to be transported is provided on the workbench 1, and a placement box 9 is provided on the workbench 1 below one side of the transmission component 8.

[0039] The clamping assembly 4 includes a first motor 401 fixed to the surface of the mounting member 2, the output end of the first motor 401 passes through the mounting member 2 and is fixed with a first rotating shaft 402, the surface of the first rotating shaft 402 is fixed with a first toothed connecting rod 403, one end of the first toothed connecting rod 403 is rotated with a first clamping rod 404 through a pin, the surface of the first clamping rod 404 is rotated with a limit rod 405 through a pin, one end of the limit rod 405 is connected to the surface of the mounting member 2 through a pin, and the surface of the first toothed connecting rod 403 is engaged with the first clamping rod 404. There is a second toothed connecting rod 406, and a second rotating shaft 407 is fixed at the axis center of one end of the second toothed connecting rod 406. The end of the second rotating shaft 407 is rotatably connected to the mounting member 2 through a bearing. The other end of the second toothed connecting rod 406 is rotatably connected to a second clamping rod 408 through a pin shaft. The surface of the second clamping rod 408 is rotatably connected to a connecting rod 409 through a pin shaft. The end of the connecting rod 409 is rotatably connected to the surface of the mounting member 2 through a pin shaft. Anti-slip rubber blocks are fixed to the surfaces of the second clamping rod 408 and the first clamping rod 404.

[0040] In the present invention, the first motor 401 is started to drive the first rotating shaft 402 to rotate, and the first toothed connecting rod 403 is driven to rotate through the first rotating shaft 402, and the first clamping rod 404 is driven to move through the first toothed connecting rod 403. At this time, while the first toothed connecting rod 403 is rotating, the teeth on the first toothed connecting rod 403 are used to drive the second toothed connecting rod 406 to rotate, and the second clamping rod 408 is driven to move through the second toothed connecting rod 406, so that the second clamping rod 408 and the first clamping rod 404 are displaced in the same direction while being relatively close to each other, thereby achieving clamping of the workpiece, and the anti-slip rubber blocks on the surface of the second clamping rod 408 and the first clamping rod 404 can effectively prevent slipping during the clamping process, and the second clamping rod 408 and the first clamping rod 404 are conveniently limited by the limiting rod 405 and the connecting rod 409, making the structure more stable.

[0041] Example 4:

[0042] Reference Figure 1-7 A NdFeB permanent magnet polarity detection device comprises a workbench 1, a mounting part 2 is provided above the workbench 1, an adjusting component 3 for driving the mounting part 2 to move is provided on the surface of the workbench 1, a clamping component 4 for fixing the workpiece is provided on the mounting part 2, a limiting component 5 for supporting and limiting the workpiece is transmitted on the clamping component 4, a side plate 6 is fixed to the surface of one side of the workbench 1, a polarity detection instrument 7 is fixedly installed on the surface of the side plate 6, a transmission component 8 for driving the workpiece to be transported is provided on the workbench 1, and a placement box 9 is provided on the workbench 1 below one side of the transmission component 8.

[0043] The limiting assembly 5 includes a driving wheel 501 fixed on the surface of the first rotating shaft 402, and a driven wheel 502 is driven by a belt on the surface of the driving wheel 501. A rotating rod 503 is fixed at the axis of the driven wheel 502, and the end of the rotating rod 503 passes through the mounting member 2 and is rotatably connected to the bottom inner wall of the mounting member 2 through a bearing. A worm 504 is provided on the surface of the rotating rod 503, and a turbine 505 is meshed on the surface of the worm 504. A screw rod 506 is fixed at the axis of the turbine 505, and the surface of the screw rod 506 is rotatably connected to the mounting member 2 through a bearing. One end of the screw rod 506 is threadedly connected to a threaded sleeve 507, and a support plate 508 is fixed to the end of the threaded sleeve 507, and a baffle 509 is fixed to the top surface of the support plate 508. Telescopic rods 510 are fixed on both sides of the threaded sleeve 507 on the surface of the support plate 508, and the ends of the telescopic rods 510 are fixed to the mounting member 2.

[0044] In the present invention, when the first rotating shaft 402 rotates, it drives the driving wheel 501 to rotate, and the driving wheel 501 drives the driven wheel 502 to rotate synchronously, and the rotation of the driven wheel 502 drives the rotating rod 503 to rotate, and the worm 504 on the surface of the rotating rod 503 drives the turbine 505 to rotate, and the turbine 505 drives the screw rod 506 to rotate, so that the threaded sleeve 507 at the end of the screw rod 506 moves, and the support plate 508 at the end of the threaded sleeve 507 is moved and extended to support the bottom of the workpiece to limit it. The setting of the telescopic rod 510 facilitates the limiting of the support plate 508, plays a role of stable support, and cooperates with the clamping assembly 4 to make the workpiece clamped more stably and improve the accuracy of detection.

[0045] Example 5:

[0046] Reference Figure 1-7 A NdFeB permanent magnet polarity detection device comprises a workbench 1, a mounting part 2 is provided above the workbench 1, an adjusting component 3 for driving the mounting part 2 to move is provided on the surface of the workbench 1, a clamping component 4 for fixing the workpiece is provided on the mounting part 2, a limiting component 5 for supporting and limiting the workpiece is transmitted on the clamping component 4, a side plate 6 is fixed to the surface of one side of the workbench 1, a polarity detection instrument 7 is fixedly installed on the surface of the side plate 6, a transmission component 8 for driving the workpiece to be transported is provided on the workbench 1, and a placement box 9 is provided on the workbench 1 below one side of the transmission component 8.

[0047] The transmission component 8 includes a second motor 801 fixed on the surface of one side of the workbench 1, and the output end of the second motor 801 passes through the workbench 1 and is fixed with a first transmission shaft 802, and the end of the first transmission shaft 802 is rotatably connected to the workbench 1 through a bearing, and a first transmission roller 803 is fixed on the surface of the first transmission shaft 802, and a conveyor belt 804 is transmitted on the surface of the first transmission roller 803, and a second transmission roller 805 is transmitted on the surface of the conveyor belt 804, and a second transmission shaft 806 is fixed at the axis center of the second transmission roller 805, and the end of the second transmission shaft 806 is rotatably connected to the workbench 1 through a bearing, and a partition bar 807 is fixed on the surface of the conveyor belt 804.

[0048] In the present invention, the second motor 801 is started to drive the first transmission shaft 802 to rotate, and the first transmission roller 803 is driven to rotate by the first transmission shaft 802, and the second transmission roller 805 is driven to rotate synchronously by the conveyor belt 804 on the surface of the first transmission roller 803, so that the workpieces placed on the conveyor belt 804 are transported, saving the labor intensity of the staff. The partition bar 807 on the surface of the conveyor belt 804 is used to conveniently separate the workpieces to be inspected to prevent accumulation during transportation. It should be noted that during use, in order to improve the flexibility of the device and better assemble and cooperate with other equipment, the same power source as the second motor 801 can be installed at the end of the second transmission shaft 806, which is not shown in the figure. Synchronous start-up facilitates adjustment of the transmission direction.

[0049] Example 6:

[0050] Reference Figure 1-7 A NdFeB permanent magnet polarity detection device comprises a workbench 1, a mounting part 2 is provided above the workbench 1, an adjusting component 3 for driving the mounting part 2 to move is provided on the surface of the workbench 1, a clamping component 4 for fixing the workpiece is provided on the mounting part 2, a limiting component 5 for supporting and limiting the workpiece is transmitted on the clamping component 4, a side plate 6 is fixed to the surface of one side of the workbench 1, a polarity detection instrument 7 is fixedly installed on the surface of the side plate 6, a transmission component 8 for driving the workpiece to be transported is provided on the workbench 1, and a placement box 9 is provided on the workbench 1 below one side of the transmission component 8.

[0051] A protective plate 10 is fixed to the top surface of the placement box 9, a limit block 11 is fixed to the top of the workbench 1, a cylinder 12 is fixed to one side surface of the limit block 11, a push plate 13 is fixed to the end of the cylinder 12, and a box door 14 is connected to one side surface of the workbench 1 through a hinge, and a handle is installed on the surface of the box door 14.

[0052] In the present invention, the starting cylinder 12 drives the pushing plate 13 to move, and the unqualified workpieces transmitted on the transmission component 8 are pushed out, and then the workpieces fall into the interior of the placement box 9, which is convenient for centralized recovery and storage. It is convenient and practical. The protective plate 10 installed on the surface of the placement box 9 prevents the workpieces from falling and plays a protective role. Through the box door 14 on the workbench 1, it is convenient to open and place other items used for tools in the storage space set in the workbench 1 for easy access.

[0053] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A NdFeB permanent magnet polarity detection device, comprising a workbench (1), characterized in that: A mounting member (2) is provided above the workbench (1), an adjusting assembly (3) for driving the mounting member (2) to move is provided on the surface of the workbench (1), a clamping assembly (4) for fixing a workpiece is provided on the mounting member (2), a limiting assembly (5) for supporting and limiting the workpiece is transmitted on the clamping assembly (4), a side plate (6) is fixed on one side surface of the workbench (1), a polarity detection instrument (7) is fixedly installed on the surface of the side plate (6), a transmission assembly (8) for driving the workpiece to be transported is provided on the workbench (1), and a placement box (9) is provided on the workbench (1) below one side of the transmission assembly (8); The clamping assembly (4) includes a first motor (401) fixed on the surface of the mounting member (2), an output end of the first motor (401) passes through the mounting member (2) and is fixed with a first rotating shaft (402), a first tooth connecting rod (403) is fixed on the surface of the first rotating shaft (402), one end of the first tooth connecting rod (403) is connected to a first clamping rod (404) through a pin, a surface of the first clamping rod (404) is connected to a limiting rod (405) through a pin, and one end of the limiting rod (405) is connected to the surface of the mounting member (2) through a pin. The surface of the first tooth connecting rod (403) is meshed with a second tooth connecting rod (406), a second rotating shaft (407) is fixed at the axis of one end of the second tooth connecting rod (406), the end of the second rotating shaft (407) is rotatably connected to the mounting member (2) through a bearing, the other end of the second tooth connecting rod (406) is rotatably connected to a second clamping rod (408) through a pin, the surface of the second clamping rod (408) is rotatably connected to a connecting rod (409) through a pin, the end of the connecting rod (409) is rotatably connected to the surface of the mounting member (2) through a pin, and the surfaces of the second clamping rod (408) and the first clamping rod (404) are both fixed with anti-slip rubber blocks; The limiting assembly (5) includes a driving wheel (501) fixed on the surface of the first rotating shaft (402), the surface of the driving wheel (501) is connected to a driven wheel (502) through a belt, a rotating rod (503) is fixed at the axis of the driven wheel (502), the end of the rotating rod (503) passes through the mounting member (2) and is rotatably connected to the bottom inner wall of the mounting member (2) through a bearing, a worm (504) is provided on the surface of the rotating rod (503), a turbine (505) is meshed with the surface of the worm (504), a screw (506) is fixed at the axis of the turbine (505), and the surface of the screw (506) is rotatably connected to the mounting member (2) through a bearing; One end of the screw rod (506) is threadedly connected to a threaded sleeve (507), a support plate (508) is fixed to the end of the threaded sleeve (507), a baffle (509) is fixed to the top surface of the support plate (508), and telescopic rods (510) are fixed on both sides of the surface of the support plate (508) located on the threaded sleeve (507), and the ends of the telescopic rods (510) are fixedly connected to the mounting member (2).

2. The NdFeB permanent magnet polarity detection device according to claim 1, characterized in that: The adjustment assembly (3) comprises a fixed plate (301) fixed to the surface of the workbench (1), a first electric push rod (302) being fixed to the surface of the fixed plate (301), a connecting block (303) being fixed to the output end of the first electric push rod (302), a sliding groove (304) being provided on the top surface of the workbench (1), a slider (305) sliding inside the sliding groove (304), an end of the slider (305) being fixedly connected to the connecting block (303), a second electric push rod (306) being installed on the top of the connecting block (303), and a top of the second electric push rod (306) being fixedly connected to the mounting member (2).

3. The NdFeB permanent magnet polarity detection device according to claim 1, characterized in that: The transmission component (8) includes a second motor (801) fixed to a surface of one side of the workbench (1); an output end of the second motor (801) passes through the workbench (1) and is fixed with a first transmission shaft (802); an end of the first transmission shaft (802) is rotatably connected to the workbench (1) via a bearing; a first transmission roller (803) is fixed to the surface of the first transmission shaft (802); a conveyor belt (804) is driven on the surface of the first transmission roller (803); a second transmission roller (805) is driven on the surface of the conveyor belt (804); a second transmission shaft (806) is fixed at the axis of the second transmission roller (805); an end of the second transmission shaft (806) is rotatably connected to the workbench (1) via a bearing; and a separation bar (807) is fixed to the surface of the conveyor belt (804).

4. The NdFeB permanent magnet polarity detection device according to claim 1, characterized in that: A protective plate (10) is fixed to the top surface of the placement box (9).

5. The NdFeB permanent magnet polarity detection device according to claim 1, characterized in that: A limit block (11) is fixed on the top of the workbench (1), a cylinder (12) is fixed on one side surface of the limit block (11), and a push plate (13) is fixed on the end of the cylinder (12).

6. The NdFeB permanent magnet polarity detection device according to claim 1, characterized in that: A side surface of the workbench (1) is rotatably connected to a box door (14) via a hinge, and a handle is installed on the surface of the box door (14).

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