Auxiliary material arranging equipment for permanent magnet machining

Abstract

The invention belongs to the technical field of permanent magnet machining. The auxiliary material arranging equipment comprises a conveying frame and a connecting rod, a conveying belt is installed on the inner wall of the conveying frame, a mounting frame is fixedly arranged at the bottom of the conveying frame, a partition plate is fixedly arranged at the bottom of the mounting frame, and two hydraulic cylinders are fixedly arranged at the bottom of the mounting frame in a symmetrical structure; and push rods are fixedly arranged at the output ends of the two hydraulic cylinders correspondingly. Two hydraulic cylinders respectively push first fixing plates to move through push rods, the two first fixing plates respectively drive two fixing rods to synchronously and reversely move, the two fixing rods can respectively drive two second fixing plates to move when moving, and the two second fixing plates respectively drive adjusting rods to move. The two guide rods can be driven to slide along the inner wall of the conveying frame at the same time, and the mounting plate can move to push the positioning plate to move so as to extrude and position the to-be-machined permanent magnets on the conveying belt, so that the permanent magnets are arranged in rows.

Description

Technical Field

[0001] The invention relates to the technical field of permanent magnet processing, and in particular to an auxiliary material handling device for permanent magnet processing. Background Art

[0002] A permanent magnet is a magnet that can maintain its magnetism for a long time. It is a magnetic material that still shows strong magnetism to the outside world after the external magnetizing magnetic field is removed. It is also called a hard magnetic material, such as natural magnets and artificial magnets. Permanent magnets have a wide range of applications. For example, permanent magnets are used in televisions, speakers, audio speakers, radios, bag buckles, data cable magnetic rings, computer hard drives and mobile phone vibrators. Permanent magnets are widely used in people's lives and facilitate people's production and life.

[0003] During the processing of permanent magnets, it is usually necessary to manually arrange the permanent magnets into rows and then transport the entire row of permanent magnets to the processing equipment. However, the existing feeder cannot guide the permanent magnets well. The permanent magnets are prone to skew during the transportation process, which affects the accuracy of the permanent magnet feeding. Therefore, we propose an auxiliary material handling equipment for permanent magnet processing. Summary of the invention

[0004] Based on the above-mentioned technical problem that during the processing of permanent magnets, it is usually necessary to manually arrange the permanent magnets into rows and then transport the entire row of permanent magnets to the processing equipment, however, the existing feeder cannot guide the permanent magnets well, and the permanent magnets are prone to skew during the transportation process, which affects the accuracy of the permanent magnet feeding. The present invention proposes an auxiliary material sorting equipment for permanent magnet processing.

[0005] The auxiliary material sorting equipment for permanent magnet processing proposed by the present invention comprises a conveying frame and a connecting rod, a conveying belt is installed on the inner wall of the conveying frame, a mounting frame is fixedly provided at the bottom of the conveying frame, a partition is fixedly provided at the bottom of the mounting frame, and two hydraulic cylinders are fixedly provided at the bottom of the mounting frame in a symmetrical structure, push rods are fixedly provided at the output ends of the two hydraulic cylinders, first fixed plates are fixedly provided on the circumferential outer walls of the two push rods, connecting sleeves are respectively slidably connected at both ends of the connecting rod, and fixing rods are fixedly provided at the relatively far ends of the two connecting sleeves, two second fixing plates are respectively symmetrically provided on both sides of the conveying frame, the two fixing rods are respectively rotatably connected to the second fixing plates, the outer ends of the two fixing rods respectively penetrate the second fixing plates and extend to the outside thereof, and adjusting rods are respectively fixedly provided on the relatively close sides of the two second fixing plates, the inner ends of the two adjusting rods respectively penetrate the conveying frame and extend to the inside thereof, and the inner ends of the two adjusting rods are respectively rotatably connected with positioning components.

[0006] As a preferred solution of the auxiliary material handling equipment for permanent magnet processing of the present invention, the two hydraulic cylinders are respectively arranged on both sides of the partition, and the end faces of the two hydraulic cylinders are respectively connected and fixed to both sides of the partition.

[0007] As a preferred solution of the auxiliary material sorting equipment for permanent magnet processing described in the present invention, the outer circumferential walls of the two connecting sleeves are respectively provided with sliding grooves, the inner walls of the two sliding grooves are respectively slidably connected with first limit blocks, and the two ends of the two connecting rods are respectively connected and fixed by the first limit blocks.

[0008] As a preferred solution of the auxiliary material handling equipment for permanent magnet processing described in the present invention, the positioning component includes a mounting plate, a slot is formed on the outer wall of the mounting plate, and the mounting plate is connected to the positioning plate via the slot.

[0009] As a preferred solution of the auxiliary material sorting equipment for permanent magnet processing described in the present invention, two guide rods are slidably connected on both sides of the conveying frame in a symmetrical structure, and the inner ends of the two guide rods on the same side respectively penetrate the conveying frame and are fixedly connected to the mounting plate.

[0010] As a preferred solution of the auxiliary material sorting equipment for permanent magnet processing described in the present invention, the bottom of the conveying frame is symmetrically structured and fixed with two slide seats, the inner walls of the two slide seats are slidably connected with slide plates, the relatively far ends of the two slide plates are respectively connected and fixed to the second fixed plate, and the relatively close ends of the two slide plates are fixed with second limit blocks.

[0011] As a preferred solution of the auxiliary material handling equipment for permanent magnet processing described in the present invention, the adjusting rod is a threaded rod, the threaded rod is threadedly connected to the second fixed plate, and the inner end of the threaded rod passes through the conveying frame and extends into the interior thereof.

[0012] As a preferred solution of the auxiliary material sorting equipment for permanent magnet processing described in the present invention, wherein: the two fixed rods are fixed with rotating wheels at the relatively distant ends, the adjusting rod and the fixed rod on the same side are fixed with gears at the outer ends, the two gears are connected by a gear chain transmission, the outer wall of the adjusting rod is provided with a movable groove, the inner wall of the movable groove is slidably connected with a slider, and the slider is fixedly connected to the gear located above.

[0013] As a preferred solution of the auxiliary material handling equipment for permanent magnet processing of the present invention, wherein: a third fixing plate is fixed to the bottom of the two slide seats respectively, and the two fixing rods respectively penetrate the third fixing plate and are slidably connected thereto.

[0014] As a preferred solution of the auxiliary material sorting equipment for permanent magnet processing described in the present invention, wherein: the circumferential outer walls of the two connecting sleeves are respectively symmetrically structured and fixed with two limiting rings, the circumferential outer walls of the two connecting sleeves are respectively sleeved with a first protective sleeve and a second protective sleeve, the first protective sleeve is threadedly connected to the second protective sleeve, the inner walls of the threaded connection between the first protective sleeve and the second protective sleeve are respectively abutted against the limiting rings, the circumferential outer wall of the connecting rod is sleeved with a bellows sleeve, and the two ends of the bellows sleeve are respectively connected and fixed to the two second protective sleeves.

[0015] The beneficial effects of the present invention are:

[0016] 1. Through the simultaneous operation of two hydraulic cylinders, the two hydraulic cylinders push the first fixed plates to move through the push rods respectively, and the two first fixed plates drive the two fixed rods to move synchronously in the opposite direction respectively. When the two fixed rods move, they drive the two connecting sleeves to move respectively, so that the first limit blocks at both ends of the connecting rod slide back and forth along the inner wall of the sliding groove on the outer wall of the connecting sleeve respectively; when the two fixed rods move, they can drive the two second fixed plates to move respectively, and when the two second fixed plates move, they can drive the slide plate to slide along the inner wall of the slide seat respectively, and the adjusting rods are driven to move respectively by the two second fixed plates, and the mounting plates are driven to move respectively by the two adjusting rods. When the mounting plate moves, it can simultaneously drive the two guide rods to slide along the inner wall of the conveying frame, and the movement of the mounting plate can drive the positioning plate to move, so that the permanent magnets to be processed on the conveyor belt can be squeezed and positioned, so that the permanent magnets are arranged in rows.

[0017] 2. By arranging the first protective sleeve and the second protective sleeve on the two connecting sleeves, the sliding part between the first limit block and the connecting sleeve can be protected to prevent dust from entering, which causes increased wear between the structures and affects the service life and stability of the structures. By arranging the bellows sleeve on the connecting rod, the sliding part between the connecting rod and the two connecting sleeves can be protected to prevent dust from entering, which causes increased wear between the structures and affects the service life and stability of the structures.

[0018] 3. By rotating any one of the rotating wheels, the rotating wheel drives the fixed rod to rotate. The fixed rod can drive the adjusting rod above it to rotate through the transmission of the gear. When the adjusting rod rotates, it will move along the inner wall of the second fixed plate, so that the slider inside the gear slides along the inner wall of the movable groove, and the positioning plate is pushed to move by the movement of the adjusting rod. When one of the fixed rods rotates, it can drive the connecting sleeve to rotate. The rotation of the connecting sleeve drives the connecting rod to rotate through the first limit block, and the other connecting sleeve is driven to rotate through the connecting rod, so that the two fixed rods rotate at the same time, thereby being able to adjust the distance between the two positioning plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the bottom structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the installation structure of the connecting rod of the present invention;

[0023] Figure 5 It is a schematic diagram of the partial structure of the adjusting rod of the present invention.

[0024] In the figure: 1. conveying frame; 2. mounting frame; 3. partition; 4. hydraulic cylinder; 5. push rod; 6. connecting rod; 7. connecting sleeve; 8. sliding groove; 9. first limit block; 10. limit ring; 11. first protective sleeve; 12. second protective sleeve; 13. bellows sleeve; 14. first fixed plate; 15. fixed rod; 16. rotating wheel; 17. second fixed plate; 18. slide seat; 19. slide plate; 20. third fixed plate; 21. second limit block; 22. gear; 23. adjusting rod; 24. guide rod; 25. mounting plate; 26. positioning plate; 27. conveyor belt; 28. slider; 29. ​​movable groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an auxiliary material handling equipment for permanent magnet processing includes a conveyor frame 1 and a connecting rod 6. A conveyor belt 27 is installed on the inner wall of the conveyor frame 1. A mounting frame 2 is fixedly provided at the bottom of the conveyor frame 1. A partition 3 is fixedly provided at the bottom of the mounting frame 2. Two hydraulic cylinders 4 are fixedly provided at the bottom of the mounting frame 2 in a symmetrical structure. The two hydraulic cylinders 4 are respectively arranged on both sides of the partition 3. The end faces of the two hydraulic cylinders 4 are respectively connected and fixed to both sides of the partition 3. Push rods 5 are respectively fixedly provided at the output ends of the two hydraulic cylinders 4. The outer walls of the circumferences of the two push rods 5 are respectively fixedly provided with first fixed plates 14. Connecting sleeves 7 are respectively slidably connected at both ends of the connecting rod 6. The ends of the two connecting sleeves 7 that are relatively far away are both A fixing rod 15 is fixedly provided, and two second fixing plates 17 are symmetrically provided on both sides of the conveying frame 1. The two fixing rods 15 are rotatably connected to the second fixing plates 17 respectively. The outer ends of the two fixing rods 15 respectively penetrate the second fixing plates 17 and extend to the outside thereof. Adjusting rods 23 are fixedly provided on the relatively close sides of the two second fixing plates 17 respectively. The inner ends of the two adjusting rods 23 respectively penetrate the conveying frame 1 and extend to the inside thereof. The inner ends of the two adjusting rods 23 are rotatably connected with positioning components respectively. The positioning components include a mounting plate 25. A card slot is opened on the outer wall of the mounting plate 25, and the mounting plate 25 is card-connected with a positioning plate 26 through the card slot.

[0028] The permanent magnet to be processed is placed on the conveyor belt 27 on the conveyor frame 1 for conveying, and the two hydraulic cylinders 4 are operated simultaneously. The two hydraulic cylinders 4 push the first fixed plate 14 to move through the push rod 5 respectively, and the two first fixed plates 14 drive the two fixed rods 15 to move synchronously in the opposite direction respectively. When the two fixed rods 15 move, they drive the two connecting sleeves 7 to move respectively. When the two fixed rods 15 move, they can drive the two second fixed plates 17 to move respectively. The two second fixed plates 17 drive the adjusting rods 23 to move respectively, and the two adjusting rods 23 drive the mounting plate 25 to move respectively. When the mounting plate 25 moves, it can simultaneously drive the two guide rods 24 to slide along the inner wall of the conveyor frame 1. The movement of the mounting plate 25 can push the positioning plate 26 to move, so that the permanent magnet to be processed on the conveyor belt 27 can be squeezed and positioned, so that the permanent magnets are arranged in a row.

[0029] Embodiment 2:

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that: the outer walls of the two connecting sleeves 7 are respectively provided with sliding grooves 8, the inner walls of the two sliding grooves 8 are respectively slidably connected with first limit blocks 9, and both ends of the two connecting rods 6 are respectively connected and fixed with the first limit blocks 9;

[0031] Two guide rods 24 are slidably connected to the two sides of the conveying frame 1 in a symmetrical structure. The inner ends of the two guide rods 24 on the same side respectively penetrate the conveying frame 1 and are connected and fixed to the mounting plate 25;

[0032] The adjusting rod 23 is a threaded rod, which is threadedly connected to the second fixing plate 17, and the inner end of the threaded rod passes through the conveying frame 1 and extends into the interior thereof;

[0033] A rotating wheel 16 is fixedly provided at one end of the two fixed rods 15 that are relatively far away from each other. A gear 22 is fixedly provided at the outer end of the adjusting rod 23 and the fixed rod 15 located on the same side. The two gears 22 are connected by a gear chain transmission. A movable groove 29 is opened on the outer wall of the adjusting rod 23. A slider 28 is slidably connected to the inner wall of the movable groove 29. The slider 28 is fixedly connected to the gear 22 located above.

[0034] By rotating any one of the rotating wheels 16, the rotating wheel 16 drives the fixing rod 15 to rotate. The fixing rod 15 can drive the adjusting rod 23 above it to rotate through the transmission of the gear 22. When the adjusting rod 23 rotates, it will move along the inner wall of the second fixing plate 17, so that the slider 28 inside the gear 22 slides along the inner wall of the movable groove 29. The positioning plate 26 is pushed to move by the movement of the adjusting rod 23. When one of the fixing rods 15 rotates, it can drive the connecting sleeve 7 to rotate. The rotation of the connecting sleeve 7 drives the connecting rod 6 to rotate through the first limit block 9, and drives the other connecting sleeve 7 to rotate through the connecting rod 6, so that the two fixing rods 15 rotate at the same time, so that the distance between the two positioning plates 26 can be adjusted.

[0035] Embodiment three:

[0036] like Figure 3 As shown, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that: the bottom of the conveying frame 1 is symmetrically structured and fixed with two slide seats 18, the inner walls of the two slide seats 18 are slidably connected with slide plates 19, the relatively far ends of the two slide plates 19 are respectively connected and fixed to the second fixing plate 17, and the relatively close ends of the two slide plates 19 are fixed with second limit blocks 21;

[0037] A third fixing plate 20 is fixed to the bottom of the two slide seats 18, respectively. The two fixing rods 15 penetrate through the third fixing plate 20 and are slidably connected thereto.

[0038] When the two fixing rods 15 move, they can respectively drive the two second fixing plates 17 to move. When the two second fixing plates 17 move, they can respectively drive the slide plates 19 to slide along the inner wall of the slide seat 18, thereby improving the stability of the movement of the second fixing plates 17.

[0039] Embodiment 4:

[0040] like Figure 4As shown, this embodiment is based on the previous embodiment, and differs from the previous embodiment in that: the circumferential outer walls of the two connecting sleeves 7 are symmetrically structured and fixed with two limit rings 10, the circumferential outer walls of the two connecting sleeves 7 are respectively sleeved with a first protective sleeve 11 and a second protective sleeve 12, the first protective sleeve 11 is threadedly connected with the second protective sleeve 12, the inner walls of the threaded connection of the first protective sleeve 11 and the second protective sleeve 12 are respectively abutted against the limit rings 10, the circumferential outer wall of the connecting rod 6 is sleeved with a bellows sleeve 13, and the two ends of the bellows sleeve 13 are respectively connected and fixed to the two second protective sleeves 12.

[0041] By arranging a first protective sleeve 11 and a second protective sleeve 12 on the two connecting sleeves 7, the sliding portion between the first limit block 9 and the connecting sleeve 7 can be protected to prevent dust from entering, which would increase the wear between the structures and affect the service life and stability of the structures. By arranging a bellows sleeve 13 on the connecting rod 6, the sliding portion between the connecting rod 6 and the two connecting sleeves 7 can be protected to prevent dust from entering, which would increase the wear between the structures and affect the service life and stability of the structures.

[0042] Working principle: The permanent magnet to be processed is placed on the conveyor belt 27 on the conveyor frame 1 for conveying, and two hydraulic cylinders 4 are operated simultaneously. The two hydraulic cylinders 4 push the first fixed plate 14 to move through the push rod 5 respectively, and the two first fixed plates 14 drive the two fixed rods 15 to move synchronously in the opposite direction respectively. When the two fixed rods 15 move, they drive the two connecting sleeves 7 to move respectively, so that the first limit blocks 9 at both ends of the connecting rod 6 slide back and forth along the inner wall of the sliding groove 8 on the outer wall of the connecting sleeve 7 respectively;

[0043] By arranging the first protective sleeve 11 and the second protective sleeve 12 on the two connecting sleeves 7, the sliding part between the first limit block 9 and the connecting sleeve 7 can be protected to prevent dust from entering, which will increase the wear between the structures and affect the service life and stability of the structures. By arranging the bellows sleeve 13 on the connecting rod 6, the sliding part between the connecting rod 6 and the two connecting sleeves 7 can be protected to prevent dust from entering, which will increase the wear between the structures and affect the service life and stability of the structures.

[0044] When the two fixing rods 15 move, they can respectively drive the two second fixing plates 17 to move. When the two second fixing plates 17 move, they can respectively drive the slide plate 19 to slide along the inner wall of the slide seat 18. The two second fixing plates 17 respectively drive the adjusting rods 23 to move. The two adjusting rods 23 respectively drive the mounting plate 25 to move. When the mounting plate 25 moves, it can simultaneously drive the two guide rods 24 to slide along the inner wall of the conveying frame 1. The movement of the mounting plate 25 can push the positioning plate 26 to move, so that the permanent magnets to be processed on the conveyor belt 27 can be squeezed and positioned, so that the permanent magnets are arranged in rows.

[0045] By rotating any one of the rotating wheels 16, the rotating wheel 16 drives the fixing rod 15 to rotate. The fixing rod 15 can drive the adjusting rod 23 above it to rotate through the transmission of the gear 22. When the adjusting rod 23 rotates, it will move along the inner wall of the second fixing plate 17, so that the slider 28 inside the gear 22 slides along the inner wall of the movable groove 29. The positioning plate 26 is pushed to move by the movement of the adjusting rod 23. When one of the fixing rods 15 rotates, it can drive the connecting sleeve 7 to rotate. The rotation of the connecting sleeve 7 drives the connecting rod 6 to rotate through the first limit block 9, and drives the other connecting sleeve 7 to rotate through the connecting rod 6, so that the two fixing rods 15 rotate at the same time, so that the distance between the two positioning plates 26 can be adjusted.

[0046] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary material handling device for permanent magnet processing, comprising a conveying frame (1) and a connecting rod (6), characterized in that: A conveyor belt (27) is installed on the inner wall of the conveying frame (1), a mounting frame (2) is fixedly provided at the bottom of the conveying frame (1), a partition plate (3) is fixedly provided at the bottom of the mounting frame (2), two hydraulic cylinders (4) are fixedly provided at the bottom of the mounting frame (2) in a symmetrical structure, push rods (5) are fixedly provided at the output ends of the two hydraulic cylinders (4), first fixing plates (14) are fixedly provided on the circumferential outer walls of the two push rods (5), connecting sleeves (7) are slidably connected at both ends of the connecting rod (6), and the two connecting sleeves (7) are fixedly provided with fixing rods (14) at their ends which are relatively far away from each other. 5), two second fixing plates (17) are symmetrically arranged on both sides of the conveying frame (1), the two fixing rods (15) are rotatably connected to the second fixing plates (17), the outer ends of the two fixing rods (15) respectively penetrate the second fixing plates (17) and extend to the outside thereof, the relatively close sides of the two second fixing plates (17) are respectively fixed with adjustment rods (23), the inner ends of the two adjustment rods (23) respectively penetrate the conveying frame (1) and extend to the inside thereof, and the inner ends of the two adjustment rods (23) are respectively rotatably connected to positioning components.

2. The auxiliary material handling equipment for permanent magnet processing according to claim 1 is characterized in that: The two hydraulic cylinders (4) are respectively arranged on both sides of the partition plate (3), and the end surfaces of the two hydraulic cylinders (4) are respectively connected and fixed to the two sides of the partition plate (3).

3. The auxiliary material handling equipment for permanent magnet processing according to claim 2 is characterized in that: The circumferential outer walls of the two connecting sleeves (7) are respectively provided with sliding grooves (8), the inner walls of the two sliding grooves (8) are respectively slidably connected with first limit blocks (9), and both ends of the two connecting rods (6) are respectively connected and fixed by the first limit blocks (9).

4. The auxiliary material handling equipment for permanent magnet processing according to claim 3 is characterized in that: The positioning assembly comprises a mounting plate (25), an outer wall of the mounting plate (25) is provided with a slot, and the mounting plate (25) is connected to a positioning plate (26) via the slot.

5. The auxiliary material handling equipment for permanent magnet processing according to claim 4 is characterized in that: Two guide rods (24) are slidably connected to the two sides of the conveying frame (1) in a symmetrical structure. The inner ends of the two guide rods (24) on the same side respectively penetrate the conveying frame (1) and are fixedly connected to the mounting plate (25).

6. The auxiliary material handling equipment for permanent magnet processing according to claim 5, characterized in that: The bottom of the conveying frame (1) is symmetrically structured and fixedly provided with two slide seats (18). The inner walls of the two slide seats (18) are slidably connected with slide plates (19). The relatively far ends of the two slide plates (19) are respectively connected and fixed to the second fixed plate (17), and the relatively close ends of the two slide plates (19) are fixedly provided with second limit blocks (21).

7. The auxiliary material handling equipment for permanent magnet processing according to claim 6, characterized in that: The adjusting rod (23) is a threaded rod, which is threadedly connected to the second fixing plate (17), and the inner end of the threaded rod penetrates the conveying frame (1) and extends into the interior thereof.

8. The auxiliary material handling equipment for permanent magnet processing according to claim 7, characterized in that: A rotating wheel (16) is fixedly provided at one end of the two fixed rods (15) which are relatively far away from each other. A gear (22) is fixedly provided at the outer end of the adjusting rod (23) and the fixed rod (15) located on the same side. The two gears (22) are connected by a gear chain transmission. A movable groove (29) is provided on the outer wall of the adjusting rod (23). A slider (28) is slidably connected to the inner wall of the movable groove (29). The slider (28) is fixedly connected to the gear (22) located above.

9. The auxiliary material handling equipment for permanent magnet processing according to claim 8, characterized in that: A third fixing plate (20) is fixedly disposed at the bottom of each of the two slide seats (18), and the two fixing rods (15) respectively penetrate the third fixing plate (20) and are slidably connected thereto.

10. The auxiliary material handling equipment for permanent magnet processing according to claim 9, characterized in that: The circumferential outer walls of the two connecting sleeves (7) are symmetrically structured and fixed with two limiting rings (10). The circumferential outer walls of the two connecting sleeves (7) are respectively sleeved with a first protective sleeve (11) and a second protective sleeve (12). The first protective sleeve (11) and the second protective sleeve (12) are threadedly connected. The inner walls of the threaded connection between the first protective sleeve (11) and the second protective sleeve (12) are respectively in contact with the limiting rings (10). The circumferential outer wall of the connecting rod (6) is sleeved with a bellows sleeve (13). The two ends of the bellows sleeve (13) are respectively connected and fixed to the two second protective sleeves (12).

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