High-pressure isostatic pressing auxiliary device for samarium-cobalt magnet production

Abstract

The utility model provides a kind of high-pressure isostatic pressing auxiliary device for samarium-cobalt magnet production belongs to magnet production technical field. Including box, drying zone and oil pressure zone are arranged from top to bottom in box, and oil pressure zone is connected with booster device, drying zone is connected with drying device, drying zone and oil pressure zone are separated by partition, through hole is opened in partition, pipeline that is also equipped with in communication with oil pressure zone is equipped on partition, relief valve is equipped on pipeline, mounting frame is vertically slidably arranged in box, mounting frame includes sealing plate and frame body, frame body is connected in sealing plate bottom by connecting rod, multiple oil holes for oil inlet and outlet are opened on the sidewall and bottom wall of frame body, first driving part for driving mounting frame to move to make frame body vertically pass through through hole is equipped on box, sealing plate is used to close through hole after frame body is passed into oil pressure zone. Not only can the oil of the jacketed mold be prevented from dripping outside the box, but also the convenience of the workers in taking the material is improved.

Description

Technical Field

[0001] This utility model relates to the field of magnet production technology, and in particular to a high-pressure isostatic pressure auxiliary device for the production of samarium cobalt magnets. Background Technology

[0002] Samarium cobalt magnets, also known as samarium cobalt magnets, are a type of magnetic material made by smelting samarium, cobalt, and other rare earth metals into an alloy, followed by crushing, molding, and sintering.

[0003] After the raw material for samarium cobalt magnets is pulverized, it needs to be pressed into shape. A commonly used pressing device is a high-pressure isostatic pressing auxiliary device, which includes a pressure chamber filled with oil. An opening at the top of the pressure chamber allows the powder to be loaded into a mold before being placed inside. Then, an end cap is pressed down into the pressure chamber through the opening. Part of the end cap is squeezed into the pressure chamber, forcing the oil to compress the mold and thus shaping the powder within. However, removing the mold requires immersing one's hand in the oil or using tools to scoop it out, which is inconvenient and causes oil to drip from the removed mold. Utility Model Content

[0004] In view of the above problems, this utility model provides a high-pressure isostatic pressing auxiliary device for the production of samarium cobalt magnets.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-pressure isostatic pressing auxiliary device for the production of samarium cobalt magnets is provided, comprising a housing, a drying zone and a hydraulic zone arranged from top to bottom inside the housing, the hydraulic zone being connected to a pressurizing device, the drying zone being connected to a drying device, the drying zone and the hydraulic zone being separated by a partition, the partition having a through hole, and a pipe communicating with the hydraulic zone on the partition, the pipe having a pressure relief valve, a mounting frame vertically slidingly arranged inside the housing, the mounting frame including a sealing plate and a frame body, the frame body being connected to the bottom of the sealing plate by a connecting rod, forming a feeding space for placing a cladding mold between the frame body and the sealing plate, the frame body having an installation cavity for accommodating the cladding mold, the frame body having multiple oil holes for supplying oil in and out on the side wall and bottom wall of the frame body, the housing having a first driving member for driving the mounting frame to move so that the frame body vertically passes through the through hole, the sealing plate for sealing the through hole after the frame body passes through the hydraulic zone, the housing having an opening on one side of the drying zone, and a door at the opening.

[0007] Furthermore, the partition is provided with fasteners for fixing the sealing plate. The fasteners include insert rods that are horizontally and linearly slidably arranged on both sides of the drying zone. The sealing plate has grooves on both sides for matching the insert rods. The box body is provided with a second driving member for driving the insert rods to move into the grooves when the sealing plate moves down to close the through hole.

[0008] Furthermore, the frame is connected to the bottom of the sealing plate by a connecting rod, and a feeding space for dispensing the packaging mold is formed between the frame and the sealing plate.

[0009] Furthermore, a mounting plate is vertically slidably mounted on the connecting rod. The mounting plate has multiple limiting holes, and a guide groove is provided on the side wall of the mounting plate for the connecting rod to pass through. A friction pad is provided on the inner wall of the guide groove for pressing and contacting the connecting rod.

[0010] Furthermore, the pressurization device includes a pressurization tank and a sealing plug that is coaxially slidably disposed inside the pressurization tank. The bottom of the pressurization tank is connected to the oil pressure zone through a connecting pipe. A mounting bracket is provided on the outside of the pressurization tank, and a third driving component for driving the sealing plug to move is provided on the mounting bracket.

[0011] Furthermore, the drying device includes a hot air blower with multiple air ducts connected to it. The air outlets of the air ducts extend into the drying area, and ventilation openings are provided on the side wall of the chamber.

[0012] Furthermore, the lower edge of the vent is flush with the top wall of the partition to drain the oil dripping from the mounting frame, and a collection trough for collecting oil is provided on the outside of the box below the vent.

[0013] The beneficial effects of this utility model are as follows: the first driving component drives the sealing plate to move down and close the through hole, and immerses the frame in the oil in the hydraulic zone; then, the pressurizing device can pressurize the hydraulic zone so that each surface of the casing mold can be subjected to high pressure isostatic pressure; after pressing is completed, the pressure relief valve is opened to release the pressure, and then the frame moves up, so that the casing mold can be moved to the drying zone. The drying device can dry the oil on the casing mold, preventing the oil from dripping when the casing mold is removed. The dried casing mold can be directly removed to obtain the pressed and shaped samarium cobalt magnet raw material block. This not only prevents the oil from dripping on the outside of the box, but also improves the convenience of material handling for workers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-pressure isostatic pressing auxiliary device for the production of samarium cobalt magnets according to an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of another perspective of the structure of a high-pressure isostatic pressing auxiliary device for the production of samarium cobalt magnets according to an embodiment of this application.

[0016] Figure 3 This is a cross-sectional structural schematic diagram of the housing and partition of a high-pressure isostatic pressing auxiliary device for the production of samarium cobalt magnets according to an embodiment of this application.

[0017] Figure 4This is a schematic diagram of the mounting frame of a high-pressure isostatic pressing auxiliary device for the production of samarium cobalt magnets according to an embodiment of this application.

[0018] Figure 5 This is a cross-sectional view of the pressure tank of a high-pressure isostatic pressure auxiliary device for the production of samarium cobalt magnets according to an embodiment of this application.

[0019] The components are as follows: 1. Box body; 11. Drying area; 12. Hydraulic area; 13. Box door; 14. Ventilation opening; 2. Pressurization device; 21. Pressurization tank; 22. Sealing plug; 23. Connecting pipe; 24. Mounting frame; 25. Third drive component; 3. Drying device; 31. Hot air blower; 32. Air duct; 4. Mounting frame; 41. Sealing plate; 411. Groove; 42. Frame body; 421. Oil hole; 5. Partition plate; 51. Through hole; 52. Pipe; 521. Pressure relief valve; 6. First drive component; 61. Slide rod; 7. Insert rod; 8. Second drive component; 9. Connecting rod; 10. Mounting plate; 101. Limiting hole; 20. Friction pad; 30. Collection tank; 40. Encasing mold. Detailed Implementation

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0021] This application discloses a high-pressure isostatic pressing auxiliary device for the production of samarium cobalt magnets, referring to... Figure 1 , Figure 2 and Figure 3 The system includes a housing 1, within which a drying zone 11 and a hydraulic zone 12 are arranged from top to bottom. The hydraulic zone 12 is connected to a pressurizing device 2, and the drying zone 11 is connected to a drying device 3. The drying zone 11 and the hydraulic zone 12 are separated by a partition 5, which has through holes 51. A pipe 52 communicating with the hydraulic zone 12 is welded to the partition 5, and a pressure relief valve 521 is installed on the pipe 52. A mounting frame 4 is vertically slidably arranged inside the housing 1. The mounting frame 4 includes a sealing plate 41 and a frame body 42. The frame body 42 is connected to the bottom of the sealing plate 41 by a connecting rod 9, forming a feeding space between the frame body 42 and the sealing plate 41 for dispensing the packaging mold 40. The frame body 42 has an installation cavity for accommodating the packaging mold 40, and multiple oil holes 421 for oil inlet and outlet are provided on the side and bottom walls of the frame body 42. The housing 1 is provided with a first driving member 6 for moving the mounting frame 4 so that the frame 42 passes vertically through the through hole 51. The sealing plate 41 is used to seal the through hole 51 after the frame 42 passes through the hydraulic zone 12. The housing 1 has an opening on one side of the drying zone 11, and a door 13 is provided at the opening.

[0022] In this embodiment, the hydraulic zone 12 is filled with oil. The first drive unit 6 is a linear screw drive module, on which a slide rod 61 is vertically slidably connected, and the sealing plate 41 is bolted to the slide rod 61. The door 13 is rotatably positioned on one side of the opening, and the movable end of the door 13 is embedded with a magnetic block for magnetic connection with the other side of the opening.

[0023] When the frame 42 moves vertically upward to the drying zone 11, the cladding mold 40 can be placed in the mounting cavity within the frame 42. Then, the first driving component 6 drives the sealing plate 41 downward to close the through hole 51, immersing the frame 42 in the oil in the hydraulic zone 12. Next, the pressurizing device 2 pressurizes the hydraulic zone 12, ensuring that all surfaces of the cladding mold 40 are subjected to high-pressure isostatic pressure. After pressing is complete, the pressure relief valve 521 is opened to release pressure, and then the frame 42 moves upward, allowing the cladding mold 40 to move to the drying zone 11. The drying device 3 dries the oil on the cladding mold 40, preventing oil dripping when the cladding mold 40 is removed. This application provides a high-pressure isostatic pressing auxiliary device for samarium cobalt magnet production, eliminating the need for workers to immerse their hands in the oil or use tools to handle the cladding mold 40. The dried cladding mold 40 can be directly removed to obtain the pressed samarium cobalt magnet raw material block. This not only prevents the oil from the mold 40 from dripping onto the outside of the box 1, but also improves the convenience of material handling for staff.

[0024] To improve the sealing effect of the sealing plate 41 on the through hole 51, a sealing ring is also embedded in the inner wall of the through hole 51 for pressing contact with the side wall of the sealing plate 41. The sealing ring is made of rubber material.

[0025] Furthermore, the partition 5 is provided with fasteners for fixing the sealing plate 41. The fasteners include insert rods 7 that are horizontally and linearly slidably disposed on both sides of the drying zone 11. The sealing plate 41 has grooves 411 on both sides for inserting and engaging with the insert rods 7. The housing 1 is provided with a second driving member 8 for driving the insert rods 7 to move into the grooves 411 when the sealing plate 41 moves down to close the through hole 51.

[0026] In this embodiment, the second driving component 8 includes a cylinder, which is horizontally disposed on the outside of the housing 1, and the piston rod of the cylinder is connected to the screw rod 7. When the sealing plate 41 moves vertically downward and closes the through hole 51, the pressurization inside the hydraulic zone 12 will generate an upward thrust on the sealing plate 41. By horizontally inserting the screw rod 7 into the groove 411, the fixing effect on the sealing plate 41 can be further improved.

[0027] Samarium cobalt magnets for different purposes have different shapes. The cladding mold 40 used to manufacture short and blocky Samarium cobalt magnets can be directly placed inside the frame 42 and remain stable. However, when the elongated cladding mold 40 is placed inside the frame 42, it is easy to tip over and fall out of the frame 42. To solve this problem, a mounting plate 10 is vertically damped and slidably provided on the connecting rod 9. The mounting plate 10 has multiple limiting holes 101 for the elongated cladding mold 40 to pass through.

[0028] Reference Figure 4 The mounting plate 10 has a guide groove on its side wall for the connecting rod 9 to pass through, and a friction pad 20 for pressing and contacting the connecting rod 9 is provided on the inner wall of the guide groove.

[0029] In this embodiment, the friction pad 20 is made of rubber. Moving the mounting plate 10 upwards and closer to the sealing plate 41 allows the short, thick, and block-shaped sleeve molds 40 to be placed into the frame 42 through the feeding space. When vertically placing the long, narrow sleeve mold 40, moving the mounting plate 10 downwards and inserting the top of the long, narrow sleeve mold 40 into the limiting hole 101 prevents it from falling out of the frame 42 during pressing and movement. The design of the mounting plate 10 enables this device to perform high-pressure isostatic pressing operations on sleeve molds 40 of various shapes, thus improving the versatility of the device.

[0030] Reference Figure 5 The pressurization device 2 includes a pressurization tank 21 and a sealing plug 22 coaxially slidably disposed inside the pressurization tank 21. The bottom of the pressurization tank 21 is connected to the hydraulic zone 12 through a connecting pipe 23. A mounting bracket 24 is provided on the outside of the pressurization tank 21, and a third driving member 25 for driving the sealing plug 22 to move is provided on the mounting bracket 24.

[0031] In this embodiment, the third driving component 25 is a booster cylinder, which is mounted on the mounting bracket 24, and the piston rod of the booster cylinder is connected to the sealing plug 22. After the sealing plate 41 closes the through hole 51, the booster cylinder drives the sealing plug 22 to move downward, thereby squeezing the oil in the booster tank 21 into the hydraulic pressure zone 12. The booster cylinder gradually applies pressure, and the pressure in the hydraulic pressure cylinder will also gradually increase, so as to press the powder in the encapsulation mold 40 into shape through high pressure isostatic pressure.

[0032] Specifically, the drying device 3 includes a hot air blower 31, which is connected to multiple air ducts 32. The air outlet of the air ducts 32 extends into the drying area 11, and a ventilation opening 14 is provided on the side wall of the housing 1.

[0033] In this embodiment, the mounting frame 4 and the sleeve mold 40 can be dried by hot air.

[0034] Furthermore, the lower edge of the vent 14 is flush with the top wall of the partition 5 to drain the oil dripping from the mounting frame 4, and a collection trough 30 for collecting oil is provided on the outside of the housing 1 below the vent 14.

[0035] In this embodiment, a portion of the oil dripping from the mounting frame 4 and the sleeve mold 40 can flow back into the hydraulic zone 12, while the other portion falls onto the partition 5 and can flow out through the vent 14 and into the collection tank 30, thus saving resources.

[0036] The implementation principle of the high-pressure isostatic pressing auxiliary device for the production of samarium cobalt magnets in this application embodiment is as follows: the first driving member 6 drives the sealing plate 41 to move down and close the through hole 51, and the frame 42 is immersed in the oil in the hydraulic zone 12; then the pressurizing device 2 can pressurize the hydraulic zone 12 so that each surface of the cladding mold 40 can be subjected to high-pressure isostatic pressure; after pressing is completed, the pressure relief valve 521 is opened to release pressure, and then the frame 42 moves up, so that the cladding mold 40 can be moved to the drying zone 11. The drying device 3 can dry the oil on the cladding mold 40, avoiding oil dripping when the cladding mold 40 is taken out. There is no need for the staff to put their hands into the oil or use tools to pick up the cladding mold 40. The dried cladding mold 40 can be directly taken out to obtain the pressed samarium cobalt magnet raw material block. This not only avoids the oil of the cladding mold 40 dripping on the outside of the box 1, but also improves the convenience of the staff to pick up the material.

[0037] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. A high-pressure isostatic pressing auxiliary device for the production of samarium cobalt magnets, characterized in that: The enclosure includes a housing (1), which contains a drying zone (11) and a hydraulic zone (12) arranged from top to bottom. The hydraulic zone (12) is connected to a pressurizing device (2), and the drying zone (11) is connected to a drying device (3). The drying zone (11) and the hydraulic zone (12) are separated by a partition (5). The partition (5) has a through hole (51) and a pipe (52) communicating with the hydraulic zone (12). The pipe (52) has a pressure relief valve (521). A mounting frame (4) is vertically slidably arranged inside the housing (1). The mounting frame (4) includes a sealing plate (41) and a frame (42). The frame (42) is connected by a connecting rod (9). The frame (42) is attached to the bottom of the sealing plate (41), and a feeding space for feeding the packaging mold (40) is formed between the frame (42) and the sealing plate (41). The frame (42) is provided with an installation cavity for accommodating the packaging mold (40). Multiple oil holes (421) for supplying oil are provided on the side wall and bottom wall of the frame (42). The box (1) is provided with a first driving member (6) for driving the installation frame (4) to move so that the frame (42) passes vertically through the through hole (51). The sealing plate (41) is used to close the through hole (51) after the frame (42) passes through the oil pressure zone (12). The box (1) has an opening on one side of the drying zone (11) and a box door (13) is provided at the opening.

2. The high-pressure isostatic pressing auxiliary device for samarium cobalt magnet production according to claim 1, characterized in that: The partition (5) is provided with fasteners for fixing the sealing plate (41). The fasteners include insert rods (7) that are horizontally and linearly slidably arranged on both sides of the drying zone (11). The sealing plate (41) has grooves (411) on both sides for fitting the insert rods (7). The housing (1) is provided with a second driving member (8) for driving the insert rods (7) to move into the grooves (411) when the sealing plate (41) moves down to close the through hole (51).

3. The high-pressure isostatic pressing auxiliary device for samarium cobalt magnet production according to claim 1, characterized in that: A mounting plate (10) is vertically damped and slidably mounted on the connecting rod (9), and the mounting plate (10) has multiple limiting holes (101).

4. The high-pressure isostatic pressing auxiliary device for samarium cobalt magnet production according to claim 1, characterized in that: The pressurization device (2) includes a pressurization tank (21) and a sealing plug (22) that is coaxially slidably disposed in the pressurization tank (21). The bottom of the pressurization tank (21) is connected to the oil pressure zone (12) through a connecting pipe (23). A mounting bracket (24) is provided on the outside of the pressurization tank (21). A third driving member (25) for driving the sealing plug (22) to move is provided on the mounting bracket (24).

5. The high-pressure isostatic pressing auxiliary device for samarium cobalt magnet production according to claim 1, characterized in that: The drying device (3) includes a hot air blower (31), which is connected to a plurality of air ducts (32). The air outlet of the air ducts (32) extends into the drying area (11), and the side wall of the housing (1) is provided with a ventilation opening (14).

6. The high-pressure isostatic pressing auxiliary device for samarium cobalt magnet production according to claim 5, characterized in that: The lower edge of the vent (14) is flush with the top wall of the partition (5) to drain the oil dripping from the mounting frame (4). A collection trough (30) for collecting oil is provided on the outside of the box (1) below the vent (14).

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