Sintering equipment for neodymium-iron-boron magnet machining

Abstract

The sintering equipment comprises a sintering furnace, a furnace door body is arranged at one end of a furnace cavity of the sintering furnace, a transmission shaft rod is transversely and rotationally connected to the middle of the furnace cavity of the sintering furnace, a hollow shaft rod is arranged on the outer side of the transmission shaft rod in a sleeved mode, and carrying frames are fixedly connected to the bottom end and the top end of the hollow shaft rod. The two ends of the carrying frame are both fixedly connected with a plurality of containing bases, one end of each containing base is connected with a displacement sliding rod in a sliding mode, and the end, located on the inner side of the corresponding containing base, of each displacement sliding rod is fixedly connected with a positioning plate. Through the structural cooperation of the transmission assembly, the multiple positioning plates can be driven to move at the same time while the transmission screw rod is rotated, rapid positioning of the neodymium-iron-boron magnet is formed, the overall linkage performance is greatly improved, meanwhile, the strength of personnel when the neodymium-iron-boron magnet is installed is relieved, and the overall operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of neodymium iron boron magnet processing technology, specifically a sintering device for processing neodymium iron boron magnets. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets are intermetallic compounds composed of the rare earth element neodymium (R) and iron or boron. R is primarily neodymium or a combination of neodymium and other rare earth elements; sometimes cobalt, aluminum, vanadium, and other elements are used to replace some of the iron. With the development of industries such as computers and communications, the NdFeB magnet industry has experienced rapid growth.

[0003] Currently, neodymium iron boron magnets can be manufactured using powder metallurgy, which consists of processes such as smelting, powder preparation, pressing, sintering, and heat treatment.

[0004] A search revealed a sintering device for processing neodymium iron boron magnets, with publication number CN215544914U. This device, with the aid of a fixed structure, can clamp neodymium iron boron magnets of different sizes, making the neodymium iron boron magnets more stable and less likely to fall off during sintering.

[0005] However, when the above technical solution is applied, each fixed structure needs to be equipped with an independent threaded rod. When clamping the neodymium iron boron magnet, the threaded rod needs to be rotated one by one, which makes the positioning of the neodymium iron boron magnet take a long time and makes the work intensity of personnel high.

[0006] Therefore, this utility model provides a sintering device for processing neodymium iron boron magnets to solve the above problems. Utility Model Content

[0007] To address the shortcomings of existing technologies, this invention provides a sintering device for processing neodymium iron boron magnets, thus solving the aforementioned problems.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a sintering device for processing NdFeB magnets, comprising a sintering furnace, a furnace door body being provided at one end of the furnace cavity, a transmission shaft being laterally rotatably connected to the middle of the furnace cavity, a hollow shaft being sleeved on the outer side of the transmission shaft, a mounting frame being fixedly connected to the bottom and top ends of the hollow shaft, multiple placement seats being fixedly connected to both ends of the mounting frame, a displacement slide rod being slidably connected to one end of each placement seat, a positioning plate being fixedly connected to the end of the displacement slide rod located inside the placement seat, a linkage column being fixedly connected to the end of the positioning plate located outside the placement seat, and a transmission assembly being provided on the mounting frame, the transmission assembly being used to cooperate with the displacement slide rod to position the NdFeB magnet.

[0009] Preferably, the transmission assembly includes a support base, a support shaft, an eccentric plate, a linkage slot, and a transmission base. Two support bases are fixedly connected to the top of the mounting frame. A support shaft is rotatably connected to the middle of each support base. An eccentric plate that cooperates with a corresponding linkage column is fixedly connected to each of the two support shafts. A linkage slot is formed in the middle of each eccentric plate, and the linkage column is movably connected inside the corresponding linkage slot. A transmission base is fixedly connected to the top of one end of the mounting frame. A transmission screw is rotatably connected to the top of the transmission base. A displacement push plate is threaded onto the transmission screw. Both ends of the displacement push plate are rotatably connected to linkage rods. The top of the eccentric plate closest to the linkage rod on each of the two support shafts is fixedly connected to a mounting plate, and the ends of the two linkage rods away from the displacement push plate are rotatably connected to the two mounting plates respectively.

[0010] Preferably, a limiting strip is fixedly connected to the outer side of the transmission shaft, a limiting groove is provided on the inner side of the hollow shaft, and the limiting strip is also slidably connected inside the limiting groove.

[0011] Preferably, a threaded rod is fixedly connected to one end of the drive shaft near the furnace door body, and a blocking plate is threaded onto the threaded rod. The blocking plate has anti-slip textures at one end near the drive shaft.

[0012] Preferably, the placement base has a U-shaped structure, and multiple heat-conducting through holes are provided at both ends of the placement base.

[0013] Preferably, a stabilizing slide rod is also vertically fixedly connected to the transmission base, and the displacement push plate is also slidably connected to the stabilizing slide rod.

[0014] Preferably, both ends of the displacement push plate are fixedly connected to the mounting base, and the linkage rod is connected to the top of the mounting base by a pin.

[0015] Beneficial effects

[0016] This invention provides a sintering apparatus for processing neodymium iron boron magnets. Compared with the prior art, it has the following advantages:

[0017] This sintering equipment for processing NdFeB magnets, through the structural coordination of the transmission components, can simultaneously drive multiple positioning plates to move while rotating the transmission screw, thus achieving rapid positioning of the NdFeB magnets. This greatly improves the overall linkage and reduces the intensity of personnel installing NdFeB magnets, making the whole process more convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2This is a schematic diagram of the internal structure of the sintering furnace of this utility model;

[0020] Figure 3 This is a schematic diagram of the separation structure of the transmission shaft and the hollow shaft of this utility model;

[0021] Figure 4 This is a schematic diagram of the transmission component of this utility model;

[0022] Figure 5 This is a schematic diagram of the separation structure of the threaded rod and the blocking plate of this utility model.

[0023] In the diagram: 1. Sintering furnace; 2. Furnace door body; 3. Drive shaft; 4. Hollow shaft; 5. Mounting frame; 6. Placement seat; 7. Displacement slide bar; 8. Positioning plate; 9. Linkage column; 10. Support seat; 11. Support shaft; 12. Eccentric plate; 13. Linkage through slot; 14. Drive seat; 15. Drive screw; 16. Displacement push plate; 17. Linkage rod; 18. Mounting plate; 19. Threaded rod; 20. Baffle plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Please see Figure 1-5 A sintering device for processing neodymium iron boron magnets includes a sintering furnace 1. A furnace door body 2 is provided at one end of the furnace cavity of the sintering furnace 1. A transmission shaft 3 is laterally rotatably connected to the middle of the furnace cavity of the sintering furnace 1. A hollow shaft 4 is sleeved on the outside of the transmission shaft 3. A mounting frame 5 is fixedly connected to both the bottom and top ends of the hollow shaft 4. Multiple placement seats 6 are fixedly connected to both ends of the mounting frame 5. A displacement slide rod 7 is slidably connected to one end of each placement seat 6. A positioning plate 8 is fixedly connected to the end of the displacement slide rod 7 located inside the placement seat 6. A linkage column 9 is fixedly connected to the end of the positioning plate 8 located outside the placement seat 6. A transmission assembly is provided on the mounting frame 5. The transmission assembly is used to cooperate with the displacement slide rod 7 to form the positioning of the neodymium iron boron magnet.

[0027] In detail, a drive mechanism can also be provided at the end of the sintering furnace 1 away from the furnace door body 2, which is used to provide power to the transmission shaft 3, so that the transmission shaft 3 can drive the hollow shaft 4 to rotate, so that the neodymium iron boron magnet can be heated more evenly. In this embodiment, the drive mechanism can be a motor.

[0028] Furthermore, the furnace door body 2 is equipped with a sight glass to provide feedback on the situation inside the sintering furnace 1.

[0029] Furthermore, a heating element is also provided inside the sintering furnace 1 to raise the temperature of the furnace cavity to a specified temperature. In this embodiment, the heating element can be a motor heating wire.

[0030] Here, a limiting strip is fixedly connected to the outer side of the transmission shaft 3, and a limiting groove is provided on the inner side of the hollow shaft 4. The limiting strip is also slidably connected inside the limiting groove. By utilizing the structural cooperation between the limiting strip and the limiting groove, the position of the hollow shaft 4 can be effectively guided by aligning the limiting groove with the limiting strip during the installation process of the hollow shaft 4, so that the hollow shaft 4 can be smoothly assembled. Furthermore, when the transmission shaft 3 rotates subsequently, since the limiting strip is still located inside the limiting groove, the hollow shaft 4 can be driven to rotate along with it through the limiting strip.

[0031] Preferably, a threaded rod 19 is fixedly connected to one end of the drive shaft 3 near the furnace door body 2. A blocking plate 20 is threaded onto the threaded rod 19. The blocking plate 20 has anti-slip texture at one end near the drive shaft 3. By using the threaded rod 19 and the blocking plate 20, after the hollow shaft 4 is fitted, the blocking plate 20 is screwed onto the threaded rod 19 and makes the blocking plate 20 contact one end of the hollow shaft 4, which can form a limit on the hollow shaft 4 and prevent it from disengaging from the drive shaft 3 when the hollow shaft 4 rotates in the future.

[0032] Furthermore, the placement seat 6 has a U-shaped structure, and multiple heat-conducting through holes are opened at both ends of the placement seat 6. By utilizing the structure of the placement seat 6, the positioning plate 8 can cooperate with the inner wall of the placement seat 6 to form an effective positioning of the neodymium iron boron magnet.

[0033] Example 2:

[0034] Please see Figure 1-5 This embodiment provides a technical solution based on embodiment one: the transmission assembly includes a support base 10, a support shaft 11, an eccentric plate 12, a linkage slot 13, and a transmission base 14. The top of the mounting frame 5 is fixedly connected to two support bases 10, the middle of the support base 10 is rotatably connected to a support shaft 11, the two support shafts 11 are fixedly connected to an eccentric plate 12 that cooperates with the corresponding linkage column 9, the middle of the eccentric plate 12 is provided with a linkage slot 13, and the linkage column 9 is also movably connected inside the corresponding linkage slot 13. The top of one end of the mounting frame 5 is fixedly connected to a transmission base 14, the top of the transmission base 14 is rotatably connected to a transmission screw 15, and a displacement push plate 16 is threadedly connected to the transmission screw 15.

[0035] Here, a stabilizing slide rod is also vertically fixedly connected to the transmission base 14, and the displacement push plate 16 is also slidably connected to the stabilizing slide rod. By using the stabilizing slide rod, the displacement of the displacement push plate 16 can be effectively guided, preventing the displacement push plate 16 from rotating with the transmission screw 15.

[0036] Both ends of the displacement push plate 16 are rotatably connected to the linkage rod 17. The top of the eccentric plate 12 closest to the linkage rod 17 on the two support shaft rods 11 is fixedly connected to the mounting plate 18. The ends of the two linkage rods 17 away from the displacement push plate 16 are rotatably connected to the two mounting plates 18 respectively.

[0037] The displacement push plate 16 is fixedly connected to the mounting base at both ends, and the linkage rod 17 is connected to the top of the mounting base by a pin. With the mounting base, the linkage rod 17 can be stably mounted by the pin, ensuring the linkage rod 17 can be linked between the displacement push plate 16 and the mounting plate 18.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0039] The working principle is as follows: First, the neodymium iron boron magnet is placed inside the placement seat 6. Then, the transmission screw 15 is rotated. With the connection between the transmission screw 15 and the displacement push plate 16, the displacement push plate 16 can move along the transmission screw 15. Since the linkage rod 17 is connected between the displacement push plate 16 and the mounting plate 18, when the displacement push plate 16 moves, it can push the mounting plate 18 through the linkage rod 17, causing the eccentric plate 12 connected to the mounting plate 18 to rotate. Since the eccentric plate 12 is supported by the support shaft rod 11, it can drive the other eccentric plates 12 to rotate. With the setting of the linkage through groove 13, during the rotation of the eccentric plate 12, it can push the linkage column 9 through the linkage through groove 13, causing the positioning plate 8 to contact the neodymium iron boron magnet, and finally positioning the neodymium iron boron magnet inside the placement seat 6.

[0040] The hollow shaft 4 is fitted onto the outside of the transmission shaft 3, and the transmission shaft 3 is closed. Then, the furnace cavity of the sintering furnace 1 is heated to the specified temperature by the heating element, and the neodymium iron boron magnet can be sintered.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sintering apparatus for processing neodymium iron boron magnets, characterized in that: The sintering furnace (1) includes a furnace door body (2) at one end of the furnace cavity. A transmission shaft (3) is laterally rotatably connected to the middle of the furnace cavity of the sintering furnace (1). A hollow shaft (4) is sleeved on the outside of the transmission shaft (3). A mounting frame (5) is fixedly connected to the bottom and top of the hollow shaft (4). Multiple placement seats (6) are fixedly connected to both ends of the mounting frame (5). A displacement slide rod (7) is slidably connected to one end of each placement seat (6). A positioning plate (8) is fixedly connected to the end of the displacement slide rod (7) located inside the placement seat (6). A linkage column (9) is fixedly connected to the end of the positioning plate (8) located outside the placement seat (6). A transmission assembly is provided on the mounting frame (5). The transmission assembly is used to cooperate with the displacement slide rod (7) to form the positioning of the neodymium iron boron magnet.

2. The sintering equipment for processing NdFeB magnets according to claim 1, characterized in that: The transmission assembly includes a support base (10), a support shaft (11), an eccentric plate (12), a linkage slot (13), and a transmission base (14). Two support bases (10) are fixedly connected to the top of the mounting frame (5). A support shaft (11) is rotatably connected to the middle of each support base (10). An eccentric plate (12) is fixedly connected to each of the two support shafts (11) to cooperate with a corresponding linkage column (9). A linkage slot (13) is provided in the middle of the eccentric plate (12), and the linkage column (9) is movably connected inside the corresponding linkage slot (13). A transmission seat (14) is fixedly connected to the top of one end of the mounting frame (5). A transmission screw (15) is rotatably connected to the top of the transmission seat (14). A displacement push plate (16) is threaded onto the transmission screw (15). Both ends of the displacement push plate (16) are rotatably connected to linkage rods (17). The top of one eccentric plate (12) closest to the linkage rod (17) on the two support shafts (11) is fixedly connected to a mounting plate (18). The ends of the two linkage rods (17) away from the displacement push plate (16) are rotatably connected to the two mounting plates (18) respectively.

3. The sintering equipment for processing NdFeB magnets according to claim 1, characterized in that: A limiting strip is fixedly connected to the outer side of the transmission shaft (3), and a limiting groove is provided on the inner side of the hollow shaft (4), and the limiting strip is also slidably connected inside the limiting groove.

4. A sintering apparatus for processing NdFeB magnets according to claim 1, characterized in that: A threaded rod (19) is fixedly connected to one end of the drive shaft (3) near the furnace door body (2). A blocking plate (20) is threaded onto the threaded rod (19). The blocking plate (20) has anti-slip texture on one end near the drive shaft (3).

5. A sintering apparatus for processing NdFeB magnets according to claim 1, characterized in that: The placement base (6) has a U-shaped structure, and multiple heat-conducting through holes are provided at both ends of the placement base (6).

6. A sintering apparatus for processing NdFeB magnets according to claim 2, characterized in that: A stabilizing slide rod is also vertically fixedly connected to the transmission seat (14), and the displacement push plate (16) is also slidably connected to the stabilizing slide rod.

7. A sintering apparatus for processing NdFeB magnets according to claim 2, characterized in that: Both ends of the displacement push plate (16) are fixedly connected to the mounting base, and the linkage rod (17) is connected to the top of the mounting base by a pin.

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