Neodymium-iron-boron magnet cleaning device

Abstract

The present application belongs to the technical field of manufacturing Nd-Fe-B magnet, and discloses a kind of Nd-Fe-B magnet cleaning device, including with the parallelly arranged transfer cylinder of cleaning cylinder interval, two transmission pipes respectively communicating the both ends of cleaning cylinder and the both ends of transfer cylinder, filter box being arranged on transmission pipe, the net cylinder for containing workpiece being coaxially arranged in cleaning cylinder, sliding pipe being coaxially connected to one end of net cylinder, piston disc being coaxially arranged in transfer cylinder, fixedly arranged vertical plate, servo motor being arranged on vertical plate, reciprocating translation synchronous rotation mechanism for driving net cylinder to move and linkage water-pressing mechanism being linked with reciprocating translation synchronous rotation mechanism.The present application makes the net cylinder carrying magnet workpiece realize the compound motion of reciprocating translation and synchronous rotation in cleaning cylinder by linkage mechanism, simultaneously synchronously drives piston mechanism to pump the cleaning liquid in transfer cylinder communicated with cleaning cylinder, forms the strong reverse convection opposite to the motion direction of net cylinder, and efficiently washes the surface of workpiece.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of neodymium-iron-boron magnet manufacturing, and particularly relates to a neodymium-iron-boron magnet cleaning device. BACKGROUND

[0002] As an outstanding representative of the third generation of rare earth permanent magnet materials, neodymium-iron-boron permanent magnet material is praised as "magnetic king" due to its extremely high magnetic energy product, coercive force and excellent cost performance. It plays an indispensable role in high-end fields such as consumer electronics, industrial motors, wind power generation, new energy vehicles, medical equipment and aerospace.

[0003] The production and manufacturing of neodymium-iron-boron magnets usually adopt powder metallurgy process, and the typical process flow includes batching, smelting, powder making, pressing forming, sintering, mechanical processing, cleaning, surface treatment, magnetizing and detection steps. The mechanical processing usually includes precise operations such as slicing, grinding and drilling on the sintered magnet blanks. In batch processing, in order to improve efficiency and accuracy, multiple magnet blanks are often temporarily fixed into a workpiece block by an adhesive and then processed uniformly. Therefore, a large amount of pollutants, mainly including metal chips, abrasive dust, cutting fluid, oil stains and residual adhesive, will inevitably be attached and left on the surface of the neodymium-iron-boron magnet semi-finished product after mechanical processing. If these pollutants cannot be completely removed, they will have a fatal impact on the subsequent surface treatment process (such as electroplating, chemical plating, spraying, etc.). However, the existing cleaning devices for neodymium-iron-boron magnets still have many technical defects, which are specifically manifested in:

[0004] Firstly, the existing cleaning method usually places the magnet workpiece in a cleaning basket and then immerses it in a cleaning tank for cleaning. However, due to the relatively large density of the neodymium-iron-boron magnet itself and the usually small size of the workpiece, a large number of workpieces are prone to mutual stacking, gathering and close fitting during the cleaning process, forming a so-called "agglomeration" effect. Combined with the fact that the cleaning liquid is in a state of static or low-speed circulation, the cleaning intensity is not enough. This agglomeration effect will generate a large number of cleaning dead angles, making it difficult for the cleaning liquid to penetrate into the contact surface and internal gap of the workpiece, so that the pollutants in these areas cannot be effectively stripped and removed.

[0005] Secondly, in the immersion type cleaning tank, the metal chips, oil stains and other impurities stripped from the surface of the magnet will be suspended or dissolved in the cleaning liquid. Due to the fact that the cleaning liquid is in a state of static or low-speed circulation, there is a lack of effective real-time filtration and pollutant separation mechanism. These suspended impurity particles may be deposited on the surface of the magnet again, forming secondary pollution. This secondary pollution not only reduces the cleanliness of a single cleaning, but also increases the burden of the subsequent cleaning process, and causes rapid degradation of the cleaning liquid, shortening its service life. SUMMARY

[0006] In view of the above, the present application provides a neodymium iron boron magnet cleaning device, through the linkage mechanism, the net cylinder bearing the magnet workpiece realizes the compound motion of reciprocating translation and synchronous rotation in the cleaning cylinder, the centrifugal force of mechanical rolling is used to forcibly separate the magnet workpiece which is easy to agglomerate, and the reciprocating translation motion of the net cylinder synchronously drives the piston mechanism to pump the cleaning liquid in the transfer cylinder communicated with the cleaning cylinder, forms the strong reverse convection opposite to the motion direction of the net cylinder, efficiently washes the workpiece surface, greatly improves the stripping efficiency of the pollutants, and through the filter unit arranged between the transfer cylinder and the cleaning cylinder, the stripped impurities can be intercepted and purified in real time, the secondary pollution problem is eliminated, and the continuous cleanliness of the cleaning medium is ensured.

[0007] The technical scheme adopted by the present application is as follows: the present application provides a neodymium iron boron magnet cleaning device, which comprises a cleaning cylinder arranged horizontally, a transfer cylinder arranged in parallel with the cleaning cylinder, two transmission pipes respectively communicated with two ends of the cleaning cylinder and two ends of the transfer cylinder, a filter box arranged on the transmission pipe, a net cylinder coaxially arranged in the cleaning cylinder for accommodating the workpiece, a sliding pipe coaxially connected to one end of the net cylinder, a piston disc coaxially arranged in the transfer cylinder, a vertical plate fixedly arranged, a servo motor arranged on the vertical plate, a reciprocating translation synchronous rotation mechanism for driving the motion of the net cylinder, and a linkage water pressing mechanism linked with the reciprocating translation synchronous rotation mechanism.

[0008] Further, the reciprocating translation synchronous rotation mechanism comprises a follow-up shaft driven by the servo motor, a first swing arm connected perpendicularly to one end of the follow-up shaft, and a second swing arm connected perpendicularly to one end of the sliding pipe, and the other ends of the first swing arm and the second swing arm are respectively connected through a ball head and a ball groove universal joint.

[0009] Further, the linkage water pressing mechanism comprises a folding rod connected to the sliding pipe and the piston disc at two ends; the folding rod synchronously transmits the axial reciprocating translation motion of the sliding pipe to the piston disc, so that the cleaning liquid in the cleaning cylinder forms a reverse convection opposite to the translation direction of the net cylinder, so as to increase the cleaning intensity.

[0010] Further, one end of the net cylinder is provided with a fixed shaft, the sliding pipe is sleeved on the fixed shaft and is detachably connected through a fixed screw, and the sliding pipe is coaxially and sealingly penetrated through one end of the cleaning cylinder and is sleeved on a positioning shaft fixed on the vertical plate.

[0011] Further, the reciprocating translation synchronous rotation mechanism further comprises a bracket fixed on the vertical plate, the follow-up shaft is slidingly penetrated through the bracket, and the servo motor is drivingly connected with a belt wheel slidingly sleeved on the follow-up shaft through a belt.

[0012] Further, a clamping groove is formed on the surface of the follow-up shaft in the axial direction, and a clamping strip is arranged on the inner wall of the belt wheel and slidingly matched with the clamping groove.

[0013] Further, the end of the first swing arm is provided with a conical shaft parallel to the follow-up shaft, and the ball head is arranged at the end of the conical shaft to avoid motion interference.

[0014] Further, the linkage water pressing mechanism further comprises a snap ring arranged at the end of the sliding pipe, and one end of the folding rod is rotationally connected with the snap ring.

[0015] Further, the track through groove is arranged on the wall of the transfer cylinder, the piston disc is always located between the two transmission pipes, and the water barrier is arranged on the two sides of the piston disc.

[0016] Further, the upper side of the transfer cylinder is provided with a water supplement pipe and a water overflow valve, and the lower side is provided with a water discharge pipe.

[0017] Further, the upper side of the transfer cylinder is provided with a water supplement pipe and a water overflow valve, and the lower side is provided with a water discharge pipe.

[0018] The beneficial effects of the present application with the above structure are as follows:

[0019] (1) The reciprocating translation synchronous rotation mechanism is arranged to drive the meshing cylinder containing the workpiece to realize the combined motion of reciprocating translation and synchronous rotation in the cleaning cylinder, the centrifugal force generated by the continuous mechanical rolling is used to forcibly separate the magnet workpiece which is easy to agglomerate, so that the workpiece constantly changes the posture in the cleaning process, thereby ensuring that the workpiece can be fully contacted with the cleaning liquid, and the problem of a large number of cleaning dead angles caused by the close adhesion of the workpiece in the prior art is solved.

[0020] (2) The linkage water pressing mechanism is linked with the meshing cylinder to synchronously drive the piston disc to pump the cleaning liquid in the transfer cylinder, and a strong reverse convection opposite to the translation direction of the meshing cylinder is formed in the cleaning cylinder.

[0021] (3) The filter box is arranged on the circulating path of the cleaning liquid, i.e. the transmission pipe, and the impurities stripped off are intercepted and purified in real time in the first circulation of the cleaning liquid, so that the impurities cannot be deposited on the workpiece surface again, and the secondary pollution problem is fundamentally solved; in addition, since the diameter of the transfer cylinder is larger than that of the cleaning cylinder, the pumping effect of the piston disc can realize rapid replacement of the dirty cleaning liquid in the cleaning cylinder, so that the high cleanliness of the cleaning liquid in the cleaning area is maintained at all times, the final quality of single cleaning is ensured, and the service life of the cleaning liquid is significantly prolonged.

[0022] (4) The present application has a clever structure design and high transmission efficiency, and only one servo motor is used as the only power source, and through the mechanical linkage of the reciprocating translation synchronous rotation mechanism and the linkage water pressing mechanism, the composite motion of the dispersed workpieces, the reverse convection pumping of the cleaning liquid and the circulation filtering of the purification medium are realized synchronously, so that the problems of workpiece aggregation, insufficient cleaning force and secondary pollution are solved, the device structure is more compact and the energy consumption is lower, and the perfect cooperation between the actions is ensured, so that the operation reliability and the cleaning efficiency of the equipment are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a first perspective structural schematic view of a neodymium iron boron magnet cleaning device proposed by the present application.

[0024] Figure 2 It is a top view of a neodymium iron boron magnet cleaning device proposed by the present application.

[0025] Figure 3 It is a second perspective structural schematic view of a neodymium iron boron magnet cleaning device proposed by the present application.

[0026] Figure 4 It is a structural schematic view of a reciprocating translation synchronous rotation mechanism of a neodymium iron boron magnet cleaning device proposed by the present application.

[0027] Figure 5 It is an explosion structural schematic of the position relationship between the positioning shaft and the sliding pipe of a neodymium iron boron magnet cleaning device proposed by the present application.

[0028] Figure 6 It is Figure 5 It is an enlarged view of the middle A part.

[0029] Figure 7 It is a structural schematic view of a linkage water pressing mechanism of a neodymium iron boron magnet cleaning device proposed by the present application.

[0030] Figure 8 It is a structural schematic view of a piston disc of a neodymium iron boron magnet cleaning device proposed by the present application.

[0031] Figure 9A net cylinder retreats movement trajectory chart of a neodymium iron boron magnet cleaning device.

[0032] Figure 10 A net cylinder advances movement trajectory chart of a neodymium iron boron magnet cleaning device.

[0033] 1, cleaning cylinder, 11, first cylinder cover, 2, transfer cylinder, 21, water supply pipe, 22, drain pipe, 23, overflow valve, 24, piston shaft, 3, transmission pipe, 4, filter box, 5, net cylinder, 51, second cylinder cover, 52, fixed shaft, 53, fixed screw, 6, vertical plate, 61, positioning shaft, 62, sliding pipe, 7, reciprocating translation synchronous rotation mechanism, 71, support, 72, follower shaft, 721, clamping groove, 73, pulley, 731, clamping strip, 74, first swing arm, 75, conical shaft, 76, ball head, 77, second swing arm, 78, ball groove, 8, linkage water pressing mechanism, 81, clamping ring, 82, folding rod, 83, piston disc, 84, water barrier strip, 85, track through groove, 9, servo motor, 91, belt.

[0034] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0036] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0037] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10As shown, the present application proposes a neodymium iron boron magnet cleaning device, the overall structure of which comprises a cleaning cylinder 1 arranged horizontally, and a transfer cylinder 2 arranged in parallel with the cleaning cylinder 1, the cleaning cylinder 1 and the transfer cylinder 2 are communicated through two transmission pipes 3, specifically, the two transmission pipes 3 are respectively and symmetrically connected to the two end side walls of the cleaning cylinder 1 and the two end side walls of the transfer cylinder 2, forming a closed cleaning liquid circulation loop, in order to realize real-time purification of the stripped impurities in the cleaning process, a filter box 4 is arranged on each transmission pipe 3.

[0038] A mesh cylinder 5 for accommodating the workpieces to be cleaned is coaxially arranged inside the cleaning cylinder 1, in order to facilitate the loading and taking out of the workpieces, a sealable first cylinder cover 11 is hingedly arranged on the cylinder body of the cleaning cylinder 1, and correspondingly, a sealable second cylinder cover 51 is also hingedly arranged on the cylinder body of the mesh cylinder 5.

[0039] The transfer cylinder 2 serves as a pumping and replacement unit of the cleaning liquid, the upper side of the transfer cylinder 2 is provided with a water replenishing pipe 21 for adding cleaning liquid and an overflow valve 23 for indicating the liquid level and preventing excessive addition, and the lower side of the transfer cylinder 2 is provided with a water discharge pipe 22 for discharging the cleaning liquid, in order to improve the replacement efficiency, in the present embodiment, the diameter of the transfer cylinder 2 is greater than the diameter of the cleaning cylinder 1, a piston shaft 24 is coaxially arranged inside the transfer cylinder 2, a piston disc 83 is slidably sleeved on the piston shaft 24, the edge of the piston disc 83 is tightly combined with the inner wall of the transfer cylinder 2 to form a seal, and the position of the piston disc 83 is always located between the connecting ports of the two transmission pipes 3.

[0040] The driving and linkage mechanism of the present application is arranged at one end outside the cleaning cylinder 1, specifically, a vertical plate 6 is fixedly arranged, a positioning shaft 61 is horizontally fixed on the vertical plate 6, one end of the mesh cylinder 5 is coaxially fixedly connected with a fixed shaft 52, a sliding pipe 62 is sleeved on the fixed shaft 52 and is detachably locked by a fixed screw 53, the sliding pipe 62 coaxially and sealingly slides through the end cover of the cleaning cylinder 1 and is slidably sleeved on the positioning shaft 61, so as to ensure the stability and accurate guidance of the mesh cylinder 5 during axial movement.

[0041] The power source of the device is a servo motor 9, the servo motor 9 converts the rotary motion into the compound motion of the mesh cylinder 5 through a set of reciprocating translation synchronous rotation mechanism 7, the reciprocating translation synchronous rotation mechanism 7 comprises a bracket 71 fixed on the vertical plate 6, an axially slidable follower shaft 72 penetrating through the bracket 71, a pulley 73 slidably sleeved on the follower shaft 72, the pulley 73 is located between the two brackets 71 and is drivingly connected with the servo motor 9 through a belt 91, in order to realize the relative axial sliding of the pulley 73 while driving the follower shaft 72 to rotate, a clamping groove 721 is formed on the surface of the follower shaft 72 along the axial direction, and a clamping strip 731 corresponding to the clamping groove 721 is arranged on the inner wall of the pulley 73.

[0042] The reciprocating translation and synchronous rotation mechanism 7 further comprises a first swing arm 74 connected perpendicularly to the follow-up shaft 72 at one end, and a second swing arm 77 connected perpendicularly to the slide pipe 62 at one end, the free end of the first swing arm 74 extends laterally a conical shaft 75 parallel to the follow-up shaft 72, which design can effectively avoid motion interference, the end of the conical shaft 75 is provided with a ball head 76, and the free end of the second swing arm 77 is provided with a ball groove 78 matched with the ball head 76, the combination of the ball head 76 and the ball groove 78 forms a universal joint, so as to accurately decompose and transmit the rotary motion of the follow-up shaft 72 into the reciprocating translation and synchronous rotation motion of the slide pipe 62.

[0043] Working in conjunction with the reciprocating translation and synchronous rotation mechanism 7 is a set of linkage water pressing mechanism 8, which comprises a folding rod 82, one end of which is connected with the slide pipe 62 through a snap ring 81 arranged at the end of the slide pipe 62 to realize the rotating connection and ensure the synchronous axial movement with the slide pipe 62, the other end of the folding rod 82 penetrates through a long strip-shaped track through slot 85 arranged on the wall of the middle transfer cylinder 2, and is fixedly connected with the piston disc 83, in order to prevent the leakage of cleaning liquid from the track through slot 85, the water barrier 84 is arranged on both sides of the piston disc 83, which will move synchronously with the piston disc 83 and always seal the track through slot 85.

[0044] The specific working process is as follows:

[0045] Preparation: unscrew the fixing screw 53, separate the slide pipe 62 from the fixing shaft 52 of the mesh cylinder 5, take out the mesh cylinder 5 from the cleaning cylinder 1, open the second cylinder cover 51, put the Nd-Fe-B magnet workpiece to be cleaned into the mesh cylinder 5, then put the mesh cylinder 5 with the workpiece into the cleaning cylinder 1, make the fixing shaft 52 of the mesh cylinder 5 into the slide pipe 62, lock it with the fixing screw 53, and finally cover the first cylinder cover 11.

[0046] Inject cleaning liquid: inject cleaning liquid into the device through the water supplement pipe 21, since the diameter of the middle transfer cylinder 2 is large and its position makes the highest point of the overflow valve 23 higher than the upper part of the cleaning cylinder 1, when the cleaning liquid overflows from the overflow valve 23, it can be confirmed that the cleaning cylinder 1 and the middle transfer cylinder 2 are completely filled, at this time, the valve of the water supplement pipe 21 and the overflow valve 23 is closed, so that the whole cleaning system forms a closed circulation loop.

[0047] Cleaning: Turn on the servo motor 9, the servo motor 9 drives the pulley 73 to rotate through the belt 91, the pulley 73 drives the follower shaft 72 to rotate synchronously through the cooperation of the clamping strip 731 and the clamping groove 721, the rotation of the follower shaft 72, through the universal linkage between the first swing arm 74 and the second swing arm 77, makes the sliding pipe 62 (and further the meshing tube 5) produce a compound motion on the positioning shaft 61: that is, the meshing tube 5 first advances to the maximum stroke position in one direction while rotating back and forth by a certain angle, and then does the same action in the other direction. This compound motion of reciprocating translation and synchronous rotation can effectively separate the stacked and agglomerated workpieces by using the centrifugal force generated by mechanical tumbling, and completely eliminate the cleaning dead angle. Since the relative positions of the first swing arm 74 and the second swing arm 77 are constantly changing, the follower shaft 72 itself will also move axially in the bracket 71, and the structure of the clamping groove 721 and the clamping strip 731 ensures that the follower shaft 72 can slide relative to the pulley 73 while continuously transmitting power. At the same time that the meshing tube 5 performs the above-mentioned compound motion, the sliding pipe 62 drives the piston disc 83 to perform reciprocating linear motion in the transfer cylinder 2 through the folding rod 82. When the meshing tube 5 translates in one direction, the piston disc 83 also moves in the same direction, and the cleaning liquid in the front of the transfer cylinder 2 is pressed into the corresponding end of the cleaning cylinder 1 through the transmission pipe 3. When the meshing tube 5 translates in the opposite direction, it produces a reverse pumping effect. This process forms a strong reverse convection in the cleaning cylinder 1, which is always opposite to the direction of motion of the meshing tube 5. This strong convection can efficiently flush the surface of the workpiece and rapidly strip the contaminants. The stripped impurities are intercepted and filtered by the filter box 4 in the pipeline in real time when the cleaning liquid circulates to the transmission pipe 3, which not only prevents the secondary pollution problem of the impurities re-depositing on the surface of the workpiece, but also ensures the continuous cleanliness of the cleaning medium during the entire cleaning process. In addition, since the diameter of the transfer cylinder 2 is greater than that of the cleaning cylinder 1, the volume of cleaning liquid displaced by the piston disc 83 with each stroke can form a higher flow rate and displacement efficiency in the cleaning cylinder 1, thereby accelerating the dilution and displacement of the cleaning liquid containing impurities in the cleaning cylinder 1, and further improving the cleaning efficiency and cleanliness.

[0048] Workpiece removal: After cleaning is completed, stop the servo motor 9, open the drain pipe 22 to recover the cleaning liquid, and then open the first cylinder cover 11 when the liquid level is lower than the height of the first cylinder cover 11. Then the meshing tube 5 can be taken out in the reverse order of the preparation work, and finally the cleaned workpiece is taken out.

[0049] It should be noted that in this text, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or equipment.

[0050] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes can be made in the embodiments without departing from the spirit and scope of the application.

[0051] The above description of the application and its embodiments is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the application, without creative design, similar structure and embodiments of the technical solution should belong to the protection scope of the application.

Claims

1. A neodymium-iron-boron magnet cleaning device comprising a horizontally arranged cleaning drum (1), characterized in that: Further comprising a transfer cylinder (2) arranged in parallel with the cleaning cylinder (1), two transmission pipes (3) respectively communicating with both ends of the cleaning cylinder (1) and both ends of the transfer cylinder (2), a filter box (4) arranged on the transmission pipe (3), a mesh cylinder (5) coaxially arranged in the cleaning cylinder (1) for accommodating workpieces, a sliding pipe (62) coaxially connected to one end of the mesh cylinder (5), a piston disc (83) coaxially arranged in the transfer cylinder (2), a vertical plate (6) fixedly arranged, a servo motor (9) arranged on the vertical plate (6), a reciprocating translation synchronous rotation mechanism (7) for driving the mesh cylinder (5) to move, and a linkage water pressing mechanism (8) linked with the reciprocating translation synchronous rotation mechanism (7). The reciprocating translation synchronous rotation mechanism (7) comprises a follow-up shaft (72) driven by the servo motor (9), a first swing arm (74) having one end connected perpendicularly to the follow-up shaft (72), and a second swing arm (77) having one end connected perpendicularly to the sliding pipe (62), and the other ends of the first swing arm (74) and the second swing arm (77) are connected by a ball head (76) and a ball groove (78) respectively. The linkage water pressing mechanism (8) comprises a folding lever (82) having two ends connected to the sliding pipe (62) and the piston disc (83) respectively; the folding lever (82) synchronously transmits the axial reciprocating translation movement of the sliding pipe (62) to the piston disc (83), so that the cleaning liquid in the cleaning cylinder (1) forms a reverse convection opposite to the translation direction of the mesh cylinder (5).

2. The neodymium iron boron magnet cleaning device according to claim 1, characterized in that: One end of the mesh cylinder (5) is provided with a fixed shaft (52), the sliding pipe (62) is sleeved on the fixed shaft (52) and is detachably connected by a fixed screw (53), and the sliding pipe (62) is coaxially and sealingly penetrated through one end of the cleaning cylinder (1) and is slidingly sleeved on a positioning shaft (61) fixed on the vertical plate (6).

3. The neodymium-iron-boron magnet cleaning device according to claim 2, characterized in that The reciprocating translation synchronous rotation mechanism (7) further comprises a bracket (71) fixed on the vertical plate (6), the follow-up shaft (72) slidingly penetrates the bracket (71), and the servo motor (9) is drivingly connected with a belt wheel (73) slidingly sleeved on the follow-up shaft (72) through a belt (91).

4. The neodymium-iron-boron magnet cleaning device according to claim 3, characterized in that A clamping groove (721) is formed on the surface of the follow-up shaft (72) in the axial direction, and the inner wall of the belt wheel (73) is provided with a clamping strip (731) slidingly matched with the clamping groove (721).

5. The neodymium-iron-boron magnet cleaning device according to claim 4, characterized in that The end of the first swing arm (74) is laterally provided with a tapered shaft (75) parallel to the follow-up shaft (72), and the ball head (76) is arranged at the end of the tapered shaft (75).

6. The neodymium-iron-boron magnet cleaning device according to claim 5, characterized in that The linkage water pressing mechanism (8) further comprises a clamping ring (81) arranged at the end of the sliding pipe (62), and one end of the folding lever (82) is rotatably connected with the clamping ring (81).

7. The neodymium-iron-boron magnet cleaning device according to claim 6, characterized in that An orbit through slot (85) is formed on the cylinder wall of the transfer cylinder (2) for the folding lever (82) to pass through, the piston disc (83) is always located between the two transmission pipes (3), and water isolation strips (84) are arranged on both sides of the piston disc (83); the water isolation strips (84) move synchronously with the piston disc (83) when the piston disc (83) moves, and always slidingly seal the orbit through slot (85).

8. The neodymium-iron-boron magnet cleaning device according to claim 7, characterized in that The upper side of the transfer cylinder (2) is provided with a water supplement pipe (21) and a water overflow valve (23), and the lower side is provided with a water drain pipe (22); the diameter of the transfer cylinder (2) is larger than that of the cleaning cylinder (1), a piston shaft (24) is coaxially arranged in the transfer cylinder (2) for the piston disc (83) to be sleeved and translated, and the edge of the piston disc (83) is tightly sealed against the inner wall of the transfer cylinder (2).

9. The neodymium-iron-boron magnet cleaning device of claim 8, wherein: The upper side of the cleaning cylinder (1) is provided with an openable and closable first cylinder cover (11), and the upper side of the mesh cylinder (5) is provided with an openable and closable second cylinder cover (51).

Images