A full-automatic detection equipment for magnetic properties of neodymium-iron-boron

Abstract

The utility model discloses a kind of neodymium-iron-boron magnetic characteristic full-automatic detection equipment, belong to neodymium-iron-boron magnet detection field.The neodymium-iron-boron magnetic characteristic full-automatic detection equipment, including turntable, first frame in the one side of turntable and first conveying belt in the inboard of first frame, multiple placing grooves are evenly provided in the inside of turntable and the side close to edge, the hinge of the side of first frame is used for placing the storage plate of neodymium-iron-boron magnet, control assembly for driving storage plate to rotate with hinge as center pivot is equipped in storage plate bottom;Limiting plate is fixedly arranged in the top of storage plate, and the top of storage plate and the side in limiting plate are equipped with feeding rod for pushing neodymium-iron-boron magnet to move to the side of first conveying belt.The utility model is in cooperation with the first pressure holding assembly and the second pressure holding assembly by feeding rod, driving assembly, rotatable storage plate, realizes automatic feeding, conveying, detection and discharging, it is beneficial to improve detection efficiency, to better be applicable to the rapid detection of large quantities of magnet.

Description

Technical Field

[0001] This utility model relates to the field of neodymium iron boron magnet testing, and in particular to a fully automatic testing device for the magnetic properties of neodymium iron boron magnets. Background Technology

[0002] Neodymium iron boron (NdFeB) is a high-performance rare-earth permanent magnet material widely used in electronics, motors, sensors, and medical devices. Due to its superior magnetic properties, NdFeB plays a vital role in modern industry. Testing NdFeB is crucial to ensure its reliability and performance stability in various applications.

[0003] Chinese patent disclosure for a neodymium iron boron magnet testing device, application number 202122749652.3, mainly includes a testing box with a testing groove inside. Symmetrical support plates are arranged inside the testing groove, and a sliding box is slidably connected between the two support plates. A first working box is rotatably connected to the top of the sliding box. A rotating mechanism is located inside the first working box, and a second fixed box is rotatably connected to the top of the first working box, and the second fixed box is connected to the rotating mechanism. While the addition of the sliding box facilitates the placement of the test piece, this patent achieves this convenience.

[0004] However, the aforementioned testing equipment requires opening the cover, pulling out the sliding box to clamp the magnet, and then adjusting the height of the gaussmeter by turning the nut before placing the sliding box back in and closing the cover. The process is cumbersome, and the level of automation needs improvement, impacting testing efficiency. This is especially problematic for applications requiring high reliability (such as aerospace and medical equipment) where large-scale magnet testing is necessary, as it fails to meet the demands for efficient and rapid testing. Utility Model Content

[0005] This invention provides a fully automated testing device for the magnetic properties of neodymium iron boron magnets, which can solve the problems of cumbersome operation, room for improvement in automation level, and reduced testing efficiency in existing fully automated testing devices for neodymium iron boron magnets.

[0006] A fully automatic testing device for the magnetic properties of neodymium iron boron magnets includes a turntable, a first frame disposed on one side of the turntable, and a first conveyor belt disposed inside the first frame. Multiple placement slots are evenly provided inside the turntable and on one side near the edge. A storage plate for placing neodymium iron boron magnets is hinged to one side of the first frame. A control component is provided at the bottom of the storage plate for driving the storage plate to rotate around the hinge point as the central axis. A limiting plate is fixed on the top of the storage plate, and a feeding rod for pushing the neodymium iron boron magnet to move toward the first conveyor belt is provided on the top of the storage plate and on one side of the limiting plate. A driving component for driving the feeding rod to move is provided on one side of the bottom of the storage plate. A first pressing assembly is provided on the top of the storage plate and above the feeding rod. The first pressing assembly is used to press the neodymium iron boron magnets on the storage plate. A second pressing assembly is provided on the top of the first frame. The second pressing assembly is used to press the neodymium iron boron magnets on the first conveyor belt. Preferably, the turntable has a base plate at its bottom, and a second mounting plate is fixedly mounted on the side of the base plate opposite to the first frame. A gaussmeter is fixedly mounted on the second mounting plate.

[0007] Preferably, a second frame is provided on one side of the turntable, a second conveyor belt is provided inside the second frame, and a feeding assembly is provided on the top of the second frame and on the side near the turntable for pushing the neodymium iron boron magnets inside the placement slot toward the side of the second conveyor belt.

[0008] Preferably, the control component includes a first mounting plate fixed to the bottom of the first frame and a first cylinder rotating on one side of the first mounting plate, wherein the drive end of the first cylinder is rotatably connected to the bottom of the storage plate.

[0009] Preferably, the drive assembly includes two first fixed plates fixed to the bottom of the storage plate, a lead screw rotating between the first fixed plates, and a first motor fixed to one side of one of the first fixed plates. One end of the lead screw passes through the first fixed plate and is fixedly connected to the output shaft of the first motor. The bottom end of the feeding rod is threadedly connected to the lead screw. A guide groove is provided inside the storage plate, and the feeding rod slides inside the guide groove.

[0010] Preferably, the first pressing assembly includes a first fixing frame fixed to the top of the storage plate, a second cylinder fixed to the top of the first fixing frame, and a first pressure plate fixed to the driving end of the second cylinder; the second pressing assembly includes a third fixing frame fixed to the top of the first frame, a fourth cylinder fixed to the top of the third fixing frame, and a second pressure plate fixed to the driving end of the fourth cylinder.

[0011] Preferably, a retaining ring is fixed on the outer ring of the base plate, and a support plate is fixed on the outer ring of the base plate and near the locations of the first conveyor belt and the second conveyor belt.

[0012] Preferably, a second motor is fixedly mounted on the bottom of the base plate, and a rotating shaft is rotatably connected inside the base plate. The bottom end of the rotating shaft is fixedly connected to the output shaft of the second motor, and the turntable is fixed to the top end of the rotating shaft.

[0013] Preferably, the feeding assembly includes a second fixed frame fixed to the top of the second frame, a third cylinder fixed to one side of the second fixed frame, and a push plate fixed to the drive end of the third cylinder.

[0014] Preferably, two sets of mutually symmetrical limiting components are provided on the top of the first frame and on the side near the turntable. The limiting components include a second fixing plate fixed to the top of the first frame, a screw threaded into the second fixing plate, and a baffle rotating at one end of the screw.

[0015] This utility model provides a fully automatic testing device for the magnetic properties of neodymium iron boron magnets, which has the following beneficial effects: 1. The magnet to be tested is conveyed to the first conveyor belt by the feeding rod and the drive assembly. The rotatable storage plate works in conjunction with the first pressing assembly and the second pressing assembly. The first pressing assembly presses and fixes the magnet on the storage plate, and the second pressing assembly presses and fixes the magnet on the first conveyor belt. After the storage plate is flipped, the neodymium iron boron magnets are separated, which makes it easy to convey the magnet to be tested to the placement slot of the turntable through the first conveyor belt, realizing automatic feeding and conveying.

[0016] 2. By setting a second mounting plate and a gaussmeter on one side of the turntable, the rotating turntable transports the magnet to the testing station for testing. The unloading component completes the unloading, realizing both testing and unloading. The high degree of automation helps improve testing efficiency and is better suited for the rapid testing of large batches of magnets. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of a fully automatic testing device for the magnetic properties of neodymium iron boron magnets provided by this utility model. Figure 1 ; Figure 2 A schematic diagram of the structure of a fully automatic testing device for the magnetic properties of neodymium iron boron magnets provided by this utility model. Figure 2 ; Figure 3 A schematic diagram of the feeding component structure of a fully automatic testing device for the magnetic properties of neodymium iron boron magnets provided by this utility model; Figure 4 A cross-sectional view of the base plate and turntable of a fully automatic testing device for the magnetic properties of neodymium iron boron magnets provided by this utility model; Figure 5 This utility model provides a fully automatic testing device for the magnetic properties of neodymium iron boron magnets. Figure 1 Enlarged structural diagram at point A in the middle; Figure 6 This utility model provides a fully automatic testing device for the magnetic properties of neodymium iron boron magnets. Figure 2 Enlarged structural diagram at point B.

[0018] Explanation of reference numerals in the attached figures: 1. Turntable; 2. First frame; 3. First conveyor belt; 4. Storage plate; 5. First mounting plate; 6. First cylinder; 7. Feeding rod; 8. First motor; 9. First fixing plate; 10. Lead screw; 11. Guide groove; 12. First fixing frame; 13. Second cylinder; 14. First pressure plate; 15. Limiting plate; 16. Base plate; 17. Rotating shaft; 18. Second motor; 19. Placement groove; 20. Second mounting plate; 21. Gaussmeter; 22. Second frame; 23. Second conveyor belt; 24. Retaining ring; 25. Second fixing frame; 26. Third cylinder; 27. Push plate; 28. Second fixing plate; 29. ​​Screw; 30. Baffle; 31. Support plate; 32. Third fixing frame; 33. Fourth cylinder; 34. Second pressure plate. Detailed Implementation

[0019] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0020] like Figures 1 to 6 As shown in the figure, the fully automatic testing equipment for the magnetic properties of neodymium iron boron magnets provided in this embodiment of the present invention includes a turntable 1, a first frame 2 disposed on one side of the turntable 1 and a first conveyor belt 3 disposed inside the first frame 2. A plurality of placement slots 19 are evenly opened inside the turntable 1 and near the edge. A storage plate 4 for placing neodymium iron boron magnets is hinged to one side of the first frame 2. A control component for driving the storage plate 4 to rotate around the hinge point is provided at the bottom of the storage plate 4. The control component includes a first mounting plate 5 fixed to the bottom of the first frame 2 and a first cylinder 6 rotating on one side of the first mounting plate 5. The driving end of the first cylinder 6 is rotatably connected to the bottom of the storage plate 4.

[0021] When the magnet on the storage plate 4 separates from the magnet on the first conveyor belt 3, the first cylinder 6 is activated, pulling the storage plate 4 to rotate around the hinge shaft to an inclined state. The rotation of the storage plate 4 synchronously drives the magnet on it to move, so as to achieve rapid separation between the magnets. The structure is simple and facilitates the subsequent loading of magnets to be tested.

[0022] The magnets on the first conveyor belt 3 are transported to the placement trough 19 by the rotation of the conveyor belt. The rotation of the turntable 1 can realize the separation operation between adjacent magnets. After the loading is completed, the magnets are transported to the detection position for magnetic detection.

[0023] In some specific implementation plans, such as Figure 1 , Figure 3 and Figure 6As shown, a limiting plate 15 is fixedly provided on the top of the storage plate 4 to support the magnets on the storage plate 4. A feeding rod 7 is provided on the top of the storage plate 4 and on one side of the limiting plate 15 to push the neodymium iron boron magnets toward the first conveyor belt 3. A driving assembly is provided on one side of the bottom of the storage plate 4 to drive the feeding rod 7 to move. The driving assembly includes two first fixing plates 9 fixed to the bottom of the storage plate 4, a lead screw 10 rotating between the first fixing plates 9, and a first motor 8 fixed to one side of one of the first fixing plates 9. One end of the lead screw 10 passes through the first fixing plate 9 and is fixedly connected to the output shaft of the first motor 8. The top of the feeding rod 7 is designed as a horizontal structure to push the magnets to move, and its bottom end passes through the guide groove 11 and is threadedly connected to the lead screw 10. The storage plate 4 has a guide groove 11 inside, and the feeding rod 7 slides inside the guide groove 11.

[0024] The magnets to be tested are arranged on the storage plate 4 and positioned by the limiting plate 15. The first motor 8 drives the lead screw 10 to rotate, which drives the feeding rod 7 to slide along the guide groove 11, and smoothly pushes the magnets onto the first conveyor belt 3.

[0025] In some specific implementation schemes, to facilitate the separation of magnets, such as Figure 1 and Figure 3 As shown, a first pressing assembly is provided on the top of the storage plate 4 and above the feeding rod 7. The first pressing assembly is used to press the neodymium iron boron magnets on the storage plate 4. The first pressing assembly includes a first fixing frame 12 fixed to the top of the storage plate 4, a second cylinder 13 fixed to the top of the first fixing frame 12, and a first pressure plate 14 fixed to the driving end of the second cylinder 13. A second pressing assembly is provided on the top of the first frame 2. The second pressing assembly is used to press the neodymium iron boron magnets on the first conveyor belt 3. The second pressing assembly includes a third fixing frame 32 fixed to the top of the first frame 2, a fourth cylinder 33 fixed to the top of the third fixing frame 32, and a second pressure plate 34 fixed to the driving end of the fourth cylinder 33. A gap is provided between the first pressure plate 14 and the second pressure plate 34 to ensure free movement.

[0026] After one set of magnets is pushed onto the first conveyor belt 3, the magnets on the first conveyor belt 3 need to separate from the magnets on the storage plate 4. The cooperation of the second cylinder 13 and the first pressure plate 14 presses and positions the magnets on the storage plate 4, ensuring that they move with the movable storage plate 4. The cooperation of the fourth cylinder 33 and the second pressure plate 34 is used to press and position the magnets on the first conveyor belt 3, ensuring smooth separation between the magnets.

[0027] like Figure 2 and Figure 4As shown, a base plate 16 is provided at the bottom of the turntable 1, with a gap between the base plate 16 and the turntable 1. A retaining ring 24 is fixed on the outer ring of the base plate 16 to limit the magnet and prevent it from falling out of the placement slot 19. The retaining ring 24 has a notch on the side near the first conveyor belt 3 and the second conveyor belt 23. A second motor 18 is fixed at the bottom of the base plate 16, and a rotating shaft 17 is rotatably connected inside the base plate 16. The bottom end of the rotating shaft 17 is fixedly connected to the output shaft of the second motor 18. The turntable 1 is fixed to the top of the rotating shaft 17. A second mounting plate 20 is fixed on the side of the base plate 16 opposite to the first frame 2. A gaussmeter 21 is fixed on the second mounting plate 20. The gaussmeter 21 contacts the neodymium iron boron magnet and can be driven to move up and down by a driving component.

[0028] Turntable 1 rotates intermittently under the drive of the second motor 18, moving the magnet to the detection position of gaussmeter 21. Gaussmeter 21 contacts the magnet and measures its magnetic properties. The gaussmeter 21 is an instrument used to measure magnetic flux density. It is an instrument for measuring magnetic flux density based on the Hall effect and belongs to the prior art. This application will not elaborate on it further.

[0029] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a second frame 22 is provided on one side of the turntable 1. A second conveyor belt 23 is provided inside the second frame 22. Support plates 31 are fixed on the outer ring of the base plate 16 near the positions of the first conveyor belt 3 and the second conveyor belt 23. The side of the support plate 31 near the conveyor belt has an arc structure and does not contact the conveyor belt, so as to provide support between the conveyor belt and the turntable 1, ensuring the smooth entry and exit of the NdFeB magnets. A feeding assembly is provided on the top of the second frame 22 near the turntable 1 to push the NdFeB magnets inside the placement slot 19 toward the side of the second conveyor belt 23. The feeding assembly includes a second fixing frame 25 fixed on the top of the second frame 22, a third cylinder 26 fixed on one side of the second fixing frame 25, and a push plate 27 fixed on the drive end of the third cylinder 26. The push plate 27 is spaced apart from the turntable 1, and the top of the magnet extends upward toward the placement slot 19.

[0030] After the inspection is completed, the turntable 1 continues to rotate to the unloading station. The third cylinder 26 pushes the push plate 27 to push the magnet out of the placement slot 19 to the second conveyor belt 23, completing the automatic unloading.

[0031] In some specific implementation plans, such as Figure 3As shown, two sets of symmetrical limiting components are provided on the top of the first frame 2 and on the side near the turntable 1. The limiting components include a second fixing plate 28 fixed to the top of the first frame 2, a screw 29 threadedly connected to the inside of the second fixing plate 28, and a baffle 30 rotating at one end of the screw 29. A knob is provided at one end of the screw 29 for easy operation. A sliding guide rod passes through the inside of the second fixing plate 28 and is fixed to the baffle 30 to ensure smooth movement of the baffle 30.

[0032] The rotation of screw 29 can adjust the position of baffle 30, so that the magnet is positioned between baffles 30. At the same time, baffle 30 provides support. When turntable 1 drives the magnet inside the placement slot 19 to move, the magnet inside the slot is separated from the magnet located between baffles 30.

[0033] In some other specific implementations, in order to ensure the free movement of the neodymium iron boron magnet, the components in contact with the neodymium iron boron magnet, such as the storage plate 4, the first pressure plate 14, the top side of the second frame 22, the second pressure plate 34, the baffle 30, the turntable 1, the bottom plate 16, the retaining ring 24, the push plate 27, and the support plate 31, are made of non-magnetic materials.

[0034] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios: The magnet blocks to be tested are arranged on the storage plate 4 and positioned by the limiting plate 15. The first motor 8 drives the lead screw 10 to rotate, and drives the feeding rod 7 to slide along the guide groove 11, so as to smoothly push the magnet onto the first conveyor belt 3.

[0035] The second cylinder 13, in conjunction with the first pressure plate 14, presses and positions the magnets on the storage plate 4. The fourth cylinder 33, in conjunction with the second pressure plate 34, presses and positions the magnets on the first conveyor belt 3. When the first cylinder 6 operates, it pulls the storage plate 4 to rotate around the hinge axis to an inclined state. The rotation of the storage plate 4 synchronously drives the magnets on it to move, thereby achieving rapid separation between the magnets.

[0036] The fourth cylinder 33 is controlled to separate the second pressure plate 34 from the magnet. The magnet on the first conveyor belt 3 is transported to the placement trough 19 by the rotation of the conveyor belt. The turntable 1 rotates intermittently under the drive of the second motor 18. The rotation of the turntable 1 can realize the separation operation between adjacent magnets. After the loading is completed, it is transported to the detection position for magnetic detection. The gaussmeter 21 contacts the magnet to measure its magnetic properties.

[0037] After the inspection is completed, the turntable 1 continues to rotate to the unloading station. The third cylinder 26 pushes the push plate 27 to push the magnet out of the placement slot 19 to the second conveyor belt 23, completing the automatic unloading.

[0038] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A full-automatic detection equipment for neodymium-iron-boron magnetic properties, comprising a rotating disc (1), a first frame (2) arranged on one side of the rotating disc (1), and a first conveying belt (3) arranged on the inner side of the first frame (2), characterized in that, The turntable (1) has a plurality of placement slots (19) evenly opened inside and near the edge. The first frame (2) has a storage plate (4) for placing neodymium iron boron magnets hinged to one side. The bottom of the storage plate (4) is provided with a control component for driving the storage plate (4) to rotate around the hinge as the central axis. The storage plate (4) is fixedly provided with a limiting plate (15) at the top. The storage plate (4) is provided with a feeding rod (7) on the top and one side of the limiting plate (15) for pushing the neodymium iron boron magnet to move to the side of the first conveyor belt (3). The storage plate (4) is provided with a driving component on one side of the bottom for driving the feeding rod (7) to move. The storage plate (4) is provided with a first pressing component on top and above the feeding rod (7). The first pressing component is used to press the neodymium iron boron magnet on the storage plate (4). The first frame (2) is provided with a second pressing component on top. The second pressing component is used to press the neodymium iron boron magnet on the first conveyor belt (3).

2. The full-automatic equipment for detecting magnetic properties of Nd-Fe-B as claimed in claim 1, wherein, The turntable (1) has a base plate (16) at the bottom. A second mounting plate (20) is fixed on the side of the base plate (16) opposite to the first frame (2). A gaussmeter (21) is fixed on the second mounting plate (20).

3. The fully automatic testing equipment for the magnetic properties of neodymium iron boron as described in claim 2, characterized in that, A second frame (22) is provided on one side of the turntable (1), and a second conveyor belt (23) is provided inside the second frame (22). A feeding assembly is provided on the top of the second frame (22) and on the side near the turntable (1) to push the neodymium iron boron magnet inside the placement slot (19) toward the side of the second conveyor belt (23).

4. The fully automatic testing equipment for the magnetic properties of neodymium iron boron magnets as described in claim 1, characterized in that, The control component includes a first mounting plate (5) fixed to the bottom of the first frame (2) and a first cylinder (6) rotating on one side of the first mounting plate (5). The drive end of the first cylinder (6) is rotatably connected to the bottom of the storage plate (4).

5. The full-automatic equipment for detecting magnetic characteristics of Nd-Fe-B as claimed in claim 4, wherein the magnetic field is generated by a permanent magnet. The drive assembly includes two first fixed plates (9) fixed to the bottom of the storage plate (4), a lead screw (10) rotating between the first fixed plates (9), and a first motor (8) fixed to one side of one of the first fixed plates (9). One end of the lead screw (10) passes through the first fixed plate (9) and is fixedly connected to the output shaft of the first motor (8). The bottom end of the feeding rod (7) is threadedly connected to the lead screw (10). A guide groove (11) is provided inside the storage plate (4), and the feeding rod (7) slides inside the guide groove (11).

6. The fully automatic testing equipment for the magnetic properties of neodymium iron boron magnets as described in claim 1, characterized in that, The first pressing assembly includes a first fixing frame (12) fixed to the top of the storage plate (4), a second cylinder (13) fixed to the top of the first fixing frame (12), and a first pressure plate (14) fixed to the driving end of the second cylinder (13). The second pressing assembly includes a third fixing frame (32) fixed to the top of the first frame (2), a fourth cylinder (33) fixed to the top of the third fixing frame (32), and a second pressure plate (34) fixed to the driving end of the fourth cylinder (33).

7. The fully automatic testing equipment for the magnetic properties of neodymium iron boron as described in claim 2, characterized in that, A retaining ring (24) is fixed on the outer ring of the base plate (16), and a support plate (31) is fixed on the outer ring of the base plate (16) at a position close to the first conveyor belt (3) and the second conveyor belt (23).

8. The fully automatic testing equipment for the magnetic properties of neodymium iron boron as described in claim 7, characterized in that, The bottom of the base plate (16) is fixedly provided with a second motor (18), and a rotating shaft (17) is rotatably connected inside the base plate (16). The bottom end of the rotating shaft (17) is fixedly connected to the output shaft of the second motor (18), and the turntable (1) is fixed to the top of the rotating shaft (17).

9. The full-automatic equipment for detecting magnetic characteristics of Nd-Fe-B as claimed in claim 3, characterized in that, The feeding assembly includes a second fixed frame (25) fixed to the top of the second frame (22), a third cylinder (26) fixed to one side of the second fixed frame (25), and a push plate (27) fixed to the drive end of the third cylinder (26).

10. The fully automatic testing equipment for the magnetic properties of neodymium iron boron magnets as described in claim 9, characterized in that, Two sets of mutually symmetrical limiting components are provided on the top of the first frame (2) and on the side near the turntable (1). The limiting components include a second fixing plate (28) fixed on the top of the first frame (2), a screw (29) threaded inside the second fixing plate (28), and a baffle (30) rotating at one end of the screw (29).

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