Detection device for bending strength of neodymium-iron-boron magnet

Abstract

According to the device for detecting the bending strength of the neodymium-iron-boron magnet, a supporting rod is arranged at the upper end of a base, a top block is arranged at the top end of the supporting rod, two clamping plates are slidably arranged at the upper end of a bearing block in a manner of being symmetrical to a groove, a supporting plate is arranged in the middle of each clamping plate, a U-shaped frame and a driving ring are arranged above the base, and the supporting rod penetrates through the U-shaped frame. The outer end of the supporting plate is provided with a second inclined surface in contact fit with the first inclined surface, the driving ring is located below the U-shaped frame and is in threaded connection with the supporting rod, and when the driving ring is rotated, the driving ring can move up and down along the supporting rod, so that the U-shaped frame is limited, and through interaction of the first inclined surfaces at the two ends of the U-shaped frame and the second inclined surface of the supporting plate, the U-shaped frame is driven to rotate. The supporting plate and the clamping plate are pushed to horizontally move on the bearing block, clamping or loosening of the neodymium iron boron material placed on the bearing block is achieved, a sample workpiece is placed on the bearing block more stably, and then the accuracy of the neodymium iron boron workpiece in the detection process can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to neodymium iron boron strength detection equipment technical field, specifically to a kind of detection device of neodymium iron boron magnet bending strength. BACKGROUND

[0002] Neodymium iron boron is a kind of rare earth permanent magnet material, and the bending strength of neodymium iron boron material is one of important indexes of its mechanical properties, and the bending strength usually refers to the ability of material to resist bending to fracture under external force, and for sintered neodymium iron boron, the bending strength directly affects its reliability and durability in practical application.

[0003] The existing detection device of neodymium iron boron magnet bending strength lacks a mechanism for limiting the sample workpiece on the detection table during use, which can cause unstable placement of the sample workpiece, and further affect the accuracy of the neodymium iron boron workpiece during the detection process. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a detection device of neodymium iron boron magnet bending strength.

[0006] (II) Technical scheme

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a detection device of neodymium iron boron magnet bending strength, comprising a base, a frame and a pressure detector, the frame is fixed on the upper end of the base, the inside of the frame is provided with a top seat, the lower end of the top seat is fixedly provided with a fixed seat, the pressure detector is fixed on the lower end of the fixed seat, and the output end of the pressure detector is provided with a pressure head;

[0008] The upper end of the base is provided with a support rod, the top end of the support rod is provided with a top block, the upper end of the top block is provided with a bearing block, the middle part of the bearing block is provided with a groove, two clamping plates are slidably arranged on the upper end of the bearing block, the middle part of the clamping plate is provided with a support plate, the upper side of the base is provided with a U-shaped frame penetrated by the support rod and a driving ring, the two ends of the U-shaped frame can penetrate the top block, the two ends of the U-shaped frame are provided with a first inclined surface, the outer end of the support plate is provided with a second inclined surface in contact with the first inclined surface, the driving ring is located below the U-shaped frame, and the driving ring is threadedly connected with the support rod, and the driving ring can limit the U-shaped frame;

[0009] The top seat and the frame are in sliding fit, the upper end of the top seat is provided with a vertical pipe, the top end of the frame is rotatably provided with a screw rod, the screw rod can be inserted into the inside of the vertical pipe and is threadedly connected with the vertical pipe, the top end of the screw rod is provided with a knob, and the top end of the frame is provided with a limiting rod penetrating the knob and inserted into the inside of the frame.

[0010] To improve the stability of the clamping plate during use, the present invention includes the following improvements: the upper end of the bearing block is provided with a plurality of sliding grooves symmetrically arranged in the grooves; the lower end of the clamping plate is provided with a slider that slides in cooperation with the sliding grooves; the cross-section of the sliding groove is T-shaped; and the clamping plate and the support plate are an integral structure.

[0011] To facilitate operation of the drive ring, the present invention includes an improvement where the outer wall of the drive ring is provided with anti-slip texture.

[0012] To ensure the stability of the U-shaped frame during use, the present invention is improved by providing two guide grooves symmetrically arranged on both sides of the top block, through which the U-shaped frame passes.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a device for testing the bending strength of neodymium iron boron magnets, which has the following advantages:

[0015] The outer end of the support plate is provided with a second inclined surface that contacts and engages with the first inclined surface. The drive ring is located below the U-shaped frame and is connected to the support rod by a thread. When the drive ring is rotated, it moves up and down along the support rod, thereby limiting the U-shaped frame. Through the interaction between the first inclined surface at both ends of the U-shaped frame and the second inclined surface of the support plate, the support plate and the clamping plate are pushed to move horizontally on the bearing block, thereby clamping or releasing the NdFeB material placed on the bearing block. This makes the sample workpiece more stable on the bearing block, thus improving the accuracy of the NdFeB workpiece during the testing process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This utility model Figure 1 The main view;

[0018] Figure 3 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0019] In the diagram: 1. Base; 2. Frame; 3. Top seat; 4. Vertical tube; 5. Screw; 6. Actuating block; 7. Limiting rod; 8. Fixed seat; 9. Pressure detector; 10. Pressure head; 11. Support rod; 12. Top block; 13. Bearing block; 14. U-shaped frame; 15. Drive ring; 16. Groove; 17. Clamping plate; 18. Support plate. Detailed Implementation

[0020] Clearly, the described embodiments are merely part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0021] Please refer to Figures 1-3 The utility model discloses a neodymium iron boron magnet bending strength's detection device, including base 1, frame 2 and pressure detector 9, the frame 2 is fixed at the upper end of base 1, the inside of frame 2 is equipped with top seat 3, the lower end of top seat 3 is fixedly arranged fixed seat 8, the pressure detector 9 is fixed at the lower end of fixed seat 8, and the output end of pressure detector 9 is equipped with pressure head 10.

[0022] The upper end of base 1 is equipped with support rod 11, the top of support rod 11 is equipped with top block 12, the upper end of top block 12 is equipped with bearing block 13, the middle part of bearing block 13 is equipped with recess 16, two clamping plates 17 are slidably arranged in the upper end of bearing block 13, the middle part of clamping plate 17 is equipped with support plate 18, the upper of base 1 is equipped with U-shaped frame 14 and drive ring 15 penetrated by support rod 11, the both ends of U-shaped frame 14 can penetrate top block 12, the both ends of U-shaped frame 14 are equipped with first inclined plane, the outer end of support plate 18 is equipped with second inclined plane in contact with first inclined plane, drive ring 15 is located below U-shaped frame 14, and drive ring 15 is screw-connected with support rod 11, and drive ring 15 can limit U-shaped frame 14.

[0023] The top seat 3 and frame 2 are in sliding fit, the upper end of top seat 3 is equipped with vertical pipe 4, the top of frame 2 is rotatably provided with screw rod 5, the screw rod 5 can be inserted into the inside of vertical pipe 4 and is screw-connected with vertical pipe 4, the top of screw rod 5 is equipped with poking block 6, and the top of frame 2 is equipped with limiting rod 7 penetrating poking block 6 and inserted into the inside of frame 2.

[0024] In the embodiment, the upper end of bearing block 13 is provided with a plurality of sliding grooves symmetrically in recess 16, the lower end of clamping plate 17 is provided with a sliding block in sliding fit with the sliding grooves, the cross section of the sliding grooves is T-shaped, and the clamping plate 17 and the support plate 18 are in integral structure, so that the stability of the clamping plate 17 during use can be improved.

[0025] In the embodiment, the outer wall of drive ring 15 is provided with anti-skid lines, so that the drive ring 15 is convenient to operate.

[0026] In this embodiment, two guide grooves symmetrically arranged on both sides of the top block 12 are penetrated by the U-shaped frame 14, which can ensure the stability of the U-shaped frame 14 during use.

[0027] The testing device for the bending strength of neodymium iron boron magnets uses base 1 as the basic support component. The frame 2 is firmly fixed on the upper end of base 1 to form the main structure of the device. Inside the frame 2, a top seat 3 is set. The top seat 3 is connected to the frame 2 by a sliding fit. This connection method allows the top seat 3 to move relative to the frame 2.

[0028] At the lower end of the top seat 3, the fixing seat 8 is firmly fixed and installed, and the pressure detector 9 is fixed at the lower end of the fixing seat 8 to ensure that the pressure detector 9 is installed firmly. The output end of the pressure detector 9 is connected to the pressure head 10, which is used to directly apply pressure to the neodymium iron boron material to detect its bending strength.

[0029] A support rod 11 is vertically installed at the upper end of the base 1. A top block 12 is installed at the top of the support rod 11. A bearing block 13 is placed on the upper end of the top block 12. A groove 16 is machined in the middle of the bearing block 13 for positioning the neodymium iron boron material to be tested. Multiple sliding grooves are symmetrically arranged on the upper end of the bearing block 13 with respect to the groove 16. The cross-section of the sliding groove is designed to be T-shaped. Two clamping plates 17 are placed on the bearing block 13. A slider that slides with the sliding groove is provided at the lower end of the clamping plate 17, so that the clamping plate 17 can slide smoothly on the bearing block 13. The clamping plate 17 and the support plate 18 are designed as an integral structure. The support plate 18 is connected to the middle part of each clamping plate 17.

[0030] A U-shaped frame and a drive ring 15 are provided above the base 1. The U-shaped frame is penetrated by the support rod 11, and its two ends can penetrate the top block 12. The two ends of the U-shaped frame are provided with a first inclined surface. The outer end of the support plate 18 is provided with a second inclined surface that contacts and cooperates with the first inclined surface. The drive ring 15 is located below the U-shaped frame and is connected to the support rod 11 by a thread. When the drive ring 15 is rotated, the drive ring 15 will move up and down along the support rod 11, thereby limiting the U-shaped frame. Through the interaction between the first inclined surface at both ends of the U-shaped frame and the second inclined surface of the support plate 18, the support plate 18 and the clamping plate 17 are pushed to move horizontally on the bearing block 13, thereby clamping or loosening the neodymium iron boron material placed on the bearing block 13.

[0031] After the NdFeB material is tested, lower the U-shaped frame 14 to remove the NdFeB material, and finally move the clamping plate 17 to both ends of the bearing block 13.

[0032] The height adjusting structure of the top base 3 is provided with a vertical pipe 4 at the upper end of the top base 3, the top end of the frame 2 is rotatably provided with a screw rod 5, the screw rod 5 can be inserted into the vertical pipe 4 and is connected with the vertical pipe 4 through threads, the top end of the screw rod 5 is provided with a poking block 6, an operator can rotate the screw rod 5 by poking the poking block 6, meanwhile, the top end of the frame 2 is provided with a limiting rod 7 penetrating through the poking block 6 and inserted into the frame 2, the limiting rod 7 can prevent the poking block 6 from moving axially during rotation, so as to ensure the stability of the rotation of the screw rod 5, and then the height of the top base 3 can be accurately adjusted, in this way, the initial distance between the pressure head 10 and the sample can be flexibly adjusted according to the neodymium-iron-boron materials with different thicknesses, and the versatility of the device is improved.

[0033] Other details are provided with anti-skid lines on the outer wall of the driving ring 15, the anti-skid lines can increase the friction between the hands of an operator and the driving ring 15, so as to facilitate the operator to rotate the driving ring 15 more easily and accurately, and accurately control the clamping force of the clamping plate 17.

[0034] Two guide grooves are symmetrically arranged on the two sides of the top block 12, and the two ends of the U-shaped frame penetrate through the two guide grooves. The guide grooves provide a guiding effect for the vertical movement of the U-shaped frame, so as to ensure the stability of the U-shaped frame in the vertical direction during movement, avoid the U-shaped frame from deviating, and affect the accuracy of the detection result.

[0035] In the description in the present document, it should be noted that the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0036] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application.

Claims

1. A device for detecting the bending strength of a neodymium-iron-boron magnet, comprising a base (1), a frame (2) and a pressure detector (9), characterized in that: The frame (2) is fixed on the upper end of the base (1), the inside of the frame (2) is provided with a top base (3), the lower end of the top base (3) is fixedly provided with a fixing base (8), the pressure detector (9) is fixed on the lower end of the fixing base (8), and the output end of the pressure detector (9) is provided with a pressure head (10). The upper end of the base (1) is provided with a supporting rod (11), the top end of the supporting rod (11) is provided with a top block (12), the upper end of the top block (12) is provided with a bearing block (13), the middle part of the bearing block (13) is provided with a groove (16), the upper end of the bearing block (13) is symmetrically provided with two clamping plates (17) which are slidably arranged in the groove (16), the middle part of the clamping plate (17) is provided with a supporting plate (18), the upper end of the base (1) is provided with a U-shaped frame (14) and a driving ring (15) which are penetrated by the supporting rod (11), the two ends of the U-shaped frame (14) can penetrate the top block (12), the two ends of the U-shaped frame (14) are provided with first inclined surfaces, the outer end of the supporting plate (18) is provided with a second inclined surface which is in contact with the first inclined surface, the driving ring (15) is located below the U-shaped frame (14), and the driving ring (15) is threadedly connected with the supporting rod (11), and the driving ring (15) can limit the U-shaped frame (14). The top base (3) is in sliding fit with the frame (2), the upper end of the top base (3) is provided with a vertical pipe (4), the top end of the frame (2) is rotatably provided with a screw rod (5), the screw rod (5) can be inserted into the inside of the vertical pipe (4) and is threadedly connected with the vertical pipe (4), the top end of the screw rod (5) is provided with a pushing block (6), and the top end of the frame (2) is provided with a limiting rod (7) which penetrates the pushing block (6) and is inserted into the inside of the frame (2).

2. The device for detecting the bending strength of a Nd-Fe-B magnet according to claim 1, characterized in that: The upper end of the bearing block (13) is provided with a plurality of sliding grooves which are symmetrically arranged in the groove (16), and the lower end of the clamping plate (17) is provided with sliding blocks which are in sliding fit with the sliding grooves.

3. The apparatus for detecting the bending strength of a Nd-Fe-B magnet according to claim 2, wherein: The cross section of the sliding groove is T-shaped.

4. The apparatus for detecting the bending strength of a Nd-Fe-B magnet according to claim 3, wherein: The clamping plate (17) and the supporting plate (18) are in integral structure.

5. The apparatus for detecting the bending strength of a Nd-Fe-B magnet according to claim 4, wherein: The outer wall of the driving ring (15) is provided with anti-skid lines.

6. The apparatus for detecting the bending strength of a Nd-Fe-B magnet according to claim 5, wherein: The two sides of the top block (12) are symmetrically provided with two guide grooves which are penetrated by the U-shaped frame (14). The two sides of the top block (12) are symmetrically provided with two guide grooves which are penetrated by the U-shaped frame (14).

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