Neodymium-iron-boron magnet magnetizing detection device

Abstract

The utility model discloses a neodymium-iron-boron magnet magnetizing detection device, which comprises a mounting frame, a pair of sliding tables for clamping a neodymium-iron-boron magnet, a linear moving mechanism for driving the pair of sliding tables to be relatively far away from and close to each other, and a clamping mechanism which is arranged on the sliding tables and is used for fixing the neodymium-iron-boron magnet. The clamping mechanism comprises electric rolling wheels and a driving mechanism for driving the electric rolling wheels to get close to each other and get away from each other; the neodymium-iron-boron magnet magnetizing detection device further comprises a detection mechanism for detecting the magnetizing effect of the neodymium-iron-boron magnet and a limiting mechanism for assisting the neodymium-iron-boron magnet in mounting, dismounting and rotating stability. According to the technical scheme, the electric rolling wheels and the driving mechanism are arranged, so that on one hand, the iron-boron magnet is prevented from falling off during rotation detection, and on the other hand, the problem of singleness of the detection size of the iron-boron magnet is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of neodymium iron boron processing, and specifically relates to a magnetization detection device for neodymium iron boron magnets. Background Art

[0002] With the rapid development of modern science and technology and industry, due to its excellent properties such as high remanence, high coercivity, and high magnetic energy product, neodymium iron boron magnets have been widely used in many fields such as electronics, machinery, automobiles, and medical treatment. However, the performance and quality of neodymium iron boron magnets directly affect their use effects and safety. Therefore, it is particularly important to accurately detect the magnetization of neodymium iron boron magnets.

[0003] Chinese Patent (CN218003693U), a neodymium iron boron single-sided multi-stage magnetization detection device, is provided with a rotating mechanism. The rotating cylinder drives the magnetization coil to rotate reciprocally, so that the laser emitter and the laser receiver can comprehensively detect the inner wall of the magnetization coil, improving the detection accuracy and efficiency.

[0004] However, in actual use of the above structure, due to the different diameters and sizes of existing neodymium iron boron bodies, the rotating mechanism can only be applicable to a single size for rotating detection. And during the detection process, if the neodymium iron boron magnet is not properly fixed, it may collide with the inner wall of the magnetization coil, resulting in damage to the neodymium iron boron magnet. Summary of the Utility Model

[0005] In view of the above problems, a magnetization detection device for neodymium iron boron magnets is provided, which solves the problem of single fixing effect on neodymium iron boron bodies through electric rolling wheels and a driving mechanism for driving the electric rolling wheels to approach and separate from each other.

[0006] To solve the problems of the existing technology, the utility model provides a magnetization detection device for neodymium iron boron magnets, which includes a mounting frame, a pair of sliding tables for clamping neodymium iron boron magnets, a linear movement mechanism for driving the pair of sliding tables to move relatively away from and close to each other, and a clamping mechanism mounted on the sliding tables for fixing the neodymium iron boron magnets. It is characterized in that the clamping mechanism includes electric rolling wheels and a driving mechanism for driving the electric rolling wheels to approach and separate from each other. The magnetization detection device for neodymium iron boron magnets also includes a detection mechanism for detecting the magnetization effect of neodymium iron boron magnets and a limiting mechanism for assisting in the installation, disassembly, and rotation stability of neodymium iron boron magnets.

[0007] Preferably, the driving mechanism includes a second linear driver and a lead screw; the second linear driver is arranged on the sliding table; the lead screw is detachably arranged at the output end of the second linear driver through a coupling.

[0008] Preferably, the driving mechanism further includes a limiting groove and a limiting rod; the limiting groove is opened on the sliding table and is circumferentially and equally spaced with a plurality of them; the limiting rod is arranged in the limiting groove and is matched with the groove opening of the limiting groove.

[0009] Preferably, the driving mechanism further includes a hinge rod; the hinge rod is rotatably arranged at the end of the lead screw, and the other end of the hinge rod is rotatably connected to the limiting rod.

[0010] Preferably, the detection mechanism includes an electric multi-stage telescopic rod; the electric multi-stage telescopic rod is arranged on a pair of sliding tables; the electric multi-stage telescopic rod is on the side close to the limiting rod.

[0011] Preferably, the limiting mechanism includes a circular rod and a rotation limiting rod; the circular rod is slidably arranged on the mounting bracket and there are several; the rotation circular rod is rotatably mounted on the circular rod.

[0012] The beneficial effects of the present utility model compared with the prior art are as follows:

[0013] 1. The present utility model solves the problem of single fixing effect on the neodymium iron boron body by providing an electric rolling wheel and a driving mechanism for driving the electric rolling wheels to approach and separate from each other.

[0014] 2. The present utility model can drive the electric rolling wheel to make stable sliding by providing a limiting groove and a limiting rod, improving the stability of the sliding expansion of the electric rolling wheel.

[0015] 3. The present utility model improves the stability of the neodymium iron boron magnet during rotation and the effect of magnetization detection of the neodymium iron boron magnet on the one hand, and on the other hand, it also facilitates the disassembly work of the neodymium iron boron magnet after the detection by providing a limiting mechanism. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structure diagram of a neodymium iron boron magnet magnetization detection device in a state where the neodymium iron boron magnet is supported and fixed by an electric rolling wheel.

[0017] Figure 2 It is a three-dimensional structure diagram of a neodymium iron boron magnet magnetization detection device in a state where the neodymium iron boron magnet is released.

[0018] Figure 3 It is a front view structure diagram of a neodymium iron boron magnet magnetization detection device.

[0019] Figure 4 It is a three-dimensional structure diagram of a neodymium iron boron magnet magnetization detection device from the first perspective.

[0020] Figure 5 It is a three-dimensional structure diagram of the driving mechanism of a neodymium iron boron magnet magnetization detection device.

[0021] Figure 6 It is a three-dimensional structure diagram of the limiting groove and the hinge rod of a neodymium iron boron magnet magnetization detection device.

[0022] Figure 7It is a Figure 5 enlarged structure diagram at position A in

[0023] Figure 8 It is a Figure 6 enlarged structure diagram at position B in

[0024] Figure 9 It is a Figure 5 enlarged structure diagram at position C in

[0025] The reference numerals in the figure are: 1, mounting frame; 2, sliding table; 3, linear movement mechanism; 311, first linear driver; 312, bidirectional screw; 4, clamping mechanism; 41, electric rolling wheel; 5, driving mechanism; 51, second linear driver; 52, lead screw; 53, limiting groove; 54, limiting rod; 531, sliding block; 532, limiting plate; 55, articulated rod; 56, connecting block; 6, detection mechanism; 61, multi-stage telescopic rod; 62, detection sensor; 63, controller; 7, limiting mechanism; 71, circular rod; 72, rotation limiting rod; 73, return spring; 74, mounting block. Specific embodiments

[0026] To further understand the features, technical means, specific purposes, and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] See Figures 1-9 As shown, a NdFeB magnet magnetization detection device includes a mounting frame 1, a pair of sliding tables 2 for clamping the NdFeB magnet, and a linear movement mechanism 3 for driving the pair of sliding tables 2 to move relatively away from and closer to each other. The device further includes a clamping mechanism 4 mounted on the sliding table 2 for fixing the NdFeB magnet. The clamping mechanism 4 is characterized in that it includes an electric rolling wheel 41 and a driving mechanism 5 for driving the electric rolling wheels 41 to approach and separate from each other. The NdFeB magnet magnetization detection device further includes a detection mechanism 6 for detecting the magnetization effect of the NdFeB magnet and a limiting mechanism 7 for assisting in the installation, disassembly, and rotational stability of the NdFeB magnet. The linear movement mechanism 3 includes a first linear driver 311 and a bidirectional screw 312. The first linear driver 311 is disposed on the mounting frame 1, and the input end of the bidirectional screw 312 is detachably connected to the bidirectional screw 312 through a coupling. A chute for the horizontal linear sliding of the sliding table 2 is provided on the mounting frame 1. There are a pair of sliding tables 2 arranged opposite to each other, and the bidirectional screw 312 is threadedly connected to the sliding table 2.

[0028] First, lift the NdFeB magnet by a sling and position it between a pair of sliding tables 2. Then, the first linear driver 311 is activated to drive the bidirectional screw 312 to rotate and drive the pair of sliding tables 2 to move closer to each other until they are in contact with the side walls of the NdFeB magnet. At this time, the electric rolling wheels 41 can be driven by the driving mechanism 5 to support and fix the inner wall of the NdFeB magnet, preventing the NdFeB magnet from falling off the sliding table 2. And through the driving mechanism 5, each electric rolling wheel 41 can be moved closer to and away from each other, facilitating the stable clamping and limitation of NdFeB magnets of different sizes. On the one hand, it prevents the NdFeB magnet from falling during rotation detection, and on the other hand, it effectively solves the problem of the single detection size of the NdFeB magnet.

[0029] See Figures 1-3 As shown, the driving mechanism 5 includes a second linear driver 51 and a lead screw 52; the second linear driver 51 is arranged on the sliding table 2; the lead screw 52 is detachably arranged at the output end of the second linear driver 51 through a coupling. An external thread of the lead screw 52 is connected with a sliding block 531. A plurality of limiting plates 532 are installed at one end of the sliding block 531. The other end of the lead screw 52 is connected to the sliding table 2 through a bearing.

[0030] When magnetic charging detection of the NdFeB magnet is required, first lift the NdFeB magnet to between a pair of sliding tables 2 by a sling. Subsequently, the second linear driver 51 is activated to drive the lead screw 52 to rotate, and then the sliding block 531 and the limiting plates 532 move along the lead screw 52 to adjust the position of the limiting plates 532 to adapt to NdFeB magnets of different sizes.

[0031] See Figures 6-8 As shown, the driving mechanism 5 further includes a limiting groove 53 and a limiting rod 54; the limiting groove 53 is opened on the sliding table 2 and a plurality of them are equally distributed in a circumferential array; the limiting rod 54 is arranged in the limiting groove 53 and matches with the notch of the limiting groove 53. A connecting block 56 is installed at one end of the limiting rod 54. A positioning column coaxially connected with the hinge rod 55 is arranged at one end of the connecting block 56. The other end of the limiting rod 54 is fixed to the electric rolling wheel 41. The limiting grooves 53 are circularly arrayed on the sliding table 2, and the limiting rod 54 is slidably arranged in each limiting groove 53.

[0032] When the lead screw 52 rotates, the limiting rod 54 can be driven to slide along its movement track in the limiting groove 53. When the sliding block 531 moves in a horizontal straight line, the plurality of limiting rods 54 and the electric rolling wheels 41 move closer to or away from each other, facilitating the support and limitation of the inner wall of the NdFeB magnet and preventing the NdFeB magnet from shaking and falling during detection.

[0033] See Figures 5-6As shown, the driving mechanism 5 further includes a hinge rod 55; the hinge rod 55 is rotatably arranged at the end of the lead screw 52, and the other end of the hinge rod 55 is rotatably connected to the limiting rod 54.

[0034] When the slider 531 moves horizontally along the lead screw 52, the hinge rod 55 will adjust its angle according to the position of the slider 531, and then drive the limiting rod 54 to slide in the limiting groove 53, achieving the effect of expansion or contraction. Until the electric rolling wheel 41 installed at the end of the limiting rod 54 fits against the inner wall of the neodymium iron boron magnet. Since the opening direction of the limiting groove 53 is in the way of expanding outward, this enables the horizontal linear movement of the slider 531 to drive the limiting rod 54 to slide smoothly in the limiting groove 53 through the hinge rod 55, thereby realizing the expansion and fixation of the inner wall of the neodymium iron boron magnet by the electric rolling wheel 41. After the fixation is completed, the neodymium iron boron magnet can be driven to rotate and detect on the sliding table 2 by starting the electric rolling wheel 41. On the one hand, this design can adapt to different sizes of neodymium iron boron magnets for limited rotation detection; on the other hand, it can also effectively prevent the neodymium iron boron magnet from falling during the rotation detection.

[0035] See Figures 2-3 As shown, the detection mechanism 6 includes an electric multi-stage telescopic rod 61; the electric multi-stage telescopic rod 61 is arranged on a pair of sliding tables 2; on the side of the electric multi-stage telescopic rod 61 close to the limiting rod 54, a detection sensor 62 is arranged at the telescopic end of the electric multi-stage telescopic rod 61.

[0036] When it is necessary to detect the magnetization of the neodymium iron boron magnet, after the neodymium iron boron magnet is supported and fixed, start the electric multi-stage telescopic rod 61, and then the detection sensor 62 installed at the telescopic end of the electric multi-stage telescopic rod 61 can be telescoped inside the neodymium iron boron magnet. Under the continuous rotation of the neodymium iron boron magnet, the detection sensor 62 can be a Hall effect sensor to detect the magnetization effect of the neodymium iron boron magnet to improve the detection accuracy and stability. And if it is detected that there are individual areas of the neodymium iron boron magnet that are not magnetized during the detection process, an alarm can be issued and recorded through the controller 63, and it is also convenient to adjust and detect the distance for neodymium iron boron magnets of different lengths, effectively solving the problem of the singularity of the detected object.

[0037] See Figures 5-9As shown, the limiting mechanism 7 includes a circular rod 71 and a rotation limiting rod 72; the circular rod 71 is slidably arranged on the mounting bracket 1 and there are several; the rotation circular rod 71 is rotatably mounted on the circular rod 71, a through groove for the circular rod 71 to slide is formed on the mounting bracket 1, a return spring 73 is arranged outside the circular rod 71, and both ends of the return spring 73 are fixedly connected to the mounting bracket 1 and the end of the mounting block 74 respectively. An upper end of the circular rod 71 is provided with a mounting block 74 coaxially connected to the rotation limiting rod 72. There are a pair of rotation circular rods 71 respectively located on both sides of the mounting block 74. Contact wheels in contact with the outer wall of the neodymium iron boron magnet are rotatably mounted at both the upper and lower ends of each rotation limiting rod 72.

[0038] When it is necessary to perform magnetization detection on the neodymium iron boron magnet, first, the neodymium iron boron magnet is propped up and fixed by the limiting mechanism. Subsequently, the electric multi-stage telescopic rod 61 is started to enable the detection sensor 62 to perform telescopic movement inside the neodymium iron boron magnet. During the continuous rotation of the neodymium iron boron magnet, the detection sensor 62, as a Hall effect sensor, can detect the magnetization effect of the neodymium iron boron magnet with high precision and stability. If it is found that there are individual areas of the neodymium iron boron magnet that are not magnetized during the detection process, the controller 63 will immediately issue an alarm and record relevant information. In addition, due to the adjustability of the electric multi-stage telescopic rod 61, this detection system can conveniently perform distance adjustment detection on neodymium iron boron magnets of different lengths, effectively solving the problem of the singularity of the detection object.

[0039] The above embodiments only represent one or several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A neodymium iron boron magnet magnetization detection device, comprising a mounting frame (1), a pair of sliding tables (2) for clamping the neodymium iron boron magnet, a linear movement mechanism (3) for driving the pair of sliding tables (2) to move relatively away from and close to each other, and further comprising a clamping mechanism (4) mounted on the sliding table (2) for fixing the neodymium iron boron magnet, characterized in that, The clamping mechanism (4) includes an electric rolling wheel (41) and a driving mechanism (5) for driving the electric rolling wheels (41) to approach and separate from each other. The neodymium iron boron magnet magnetization detection device further includes a detection mechanism (6) for detecting the magnetization effect of the neodymium iron boron magnet and a limiting mechanism (7) for assisting in the installation, disassembly and rotational stability of the neodymium iron boron magnet.

2. The a neodymium iron boron magnet magnetization detection device according to claim 1, wherein, The driving mechanism (5) includes a second linear driver (51) and a lead screw (52); the second linear driver (51) is arranged on the sliding table (2); the lead screw (52) is detachably arranged at the output end of the second linear driver (51) through a coupling.

3. A neodymium iron boron magnet magnetization detection device according to claim 1, characterized in that, The driving mechanism (5) further includes a limiting groove (53) and a limiting rod (54); the limiting groove (53) is formed on the sliding table (2) and is circumferentially arrayed and equally spaced with several; the limiting rod (54) is arranged in the limiting groove (53) and is matched with the notch of the limiting groove (53).

4. A neodymium iron boron magnet magnetization detection device according to claim 1, characterized in that, The driving mechanism (5) further includes a hinged rod (55); the hinged rod (55) is rotatably arranged at the end of the lead screw (52), and the other end of the hinged rod (55) is rotatably connected to the limiting rod (54).

5. A neodymium iron boron magnet magnetization detection device according to claim 1, characterized in that, The detection mechanism (6) includes an electric multi-stage telescopic rod (61); the electric multi-stage telescopic rod (61) is arranged on a pair of sliding tables (2); the electric multi-stage telescopic rod (61) is on the side close to the limiting rod (54).

6. The neodymium iron boron magnet magnetization detection device according to claim 1, characterized in that, The limiting mechanism (7) includes a circular rod (71) and a rotation limiting rod (72); the circular rod (71) is slidably arranged on the mounting frame (1) and there are several; the rotation circular rod (71) is rotatably mounted on the circular rod (71).

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