Composite sintered magnet pressing and forming device

Abstract

The present invention provides a composite sintered magnet pressing and forming device, which belongs to the field of composite magnet preparation and includes a first turntable, a rubber mold, a powder adding mechanism, and an isostatic pressing mechanism. The rubber mold is arranged on the first turntable. The powder adding mechanism includes a fixed plate, a lifting plate, three powder adding heads, a first partition, a second partition, and a position adjustment component. The fixed plate moves in the vertical direction. The lifting plate is arranged on the fixed plate. The lifting plate is provided with three groups of triangular first through-grooves. The powder adding heads are limited in the first through-grooves. The first partition and the second partition are both movably arranged on the fixed plate. The position adjustment component drives the corresponding powder adding heads to leave the corresponding first through-grooves and move in the direction of a center line of the triangular arrangement area. The fixed plate is provided with a hollow area corresponding to the movement path of the powder adding heads. The isostatic pressing mechanism is arranged above the first turntable. The present invention realizes the formation of multi-layer composite magnets of different shapes in the horizontal direction by changing the method of adding magnetic powder.

Description

Technical Field

[0001] The invention relates to the technical field of composite sintered magnet preparation, in particular to a composite sintered magnet pressing and forming device. Background Art

[0002] Sintered magnet is a permanent magnet made by powder metallurgy process and is widely used in electronics, machinery, medical treatment, aerospace and other fields.

[0003] To better meet the demand for high-performance permanent magnets in various applications, composite sintered magnets, made by combining magnets made of different materials, have emerged. For example, in a linear Halbach array, the center region of each set of permanent magnets in the array requires a low-magnetic-force magnetic material, while the sides require a high-magnetic-force magnetic material.

[0004] However, current composite sintered magnets are usually prepared by stacking them in vertical directions, which is a complex process and not conducive to large-scale production. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a composite sintered magnet pressing and forming device, which aims to form composite sintered magnets of different shapes by multi-layer bonding in the horizontal direction by changing the way of adding magnetic powder.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a composite sintered magnet pressing and forming device, comprising a first turntable, a rubber mold, a powder adding mechanism, and an isostatic pressing mechanism, the first turntable rotates in the horizontal direction, the rubber mold is arranged on the first turntable, the powder adding mechanism is arranged above the first turntable and corresponds to the rubber mold in the first workstation, the powder adding mechanism comprises a fixed plate, a lifting plate, three powder adding heads, a first partition, a second partition, and a position adjustment component, the fixed plate moves in the vertical direction, the lifting plate is movably arranged on the fixed plate and moves in the vertical direction, the lifting plate is provided with three groups of first through grooves arranged in a triangular shape, the extension path of the first through groove is an equilateral triangle, and the three powder adding heads are respectively slidably limited to the three first through grooves In the embodiment, the first partition and the second partition are both movably arranged on the fixed plate, the position adjustment component drives the corresponding powder adding head to leave the corresponding first through slot and move on an extension path of a center line of the triangular arrangement area, the fixed plate is provided with a hollow area corresponding to the moving path of the three powder adding heads, and the isostatic pressing mechanism is arranged above the first turntable and corresponds to the rubber mold rotated to the second workstation; wherein, when the three powder adding heads are arranged in a triangle, the first partition is flipped to between the fixed plate and the first turntable to separate the radiation areas of the three powder adding heads; when the three powder adding heads are arranged in a straight line, the second partition is flipped to between the fixed plate and the first turntable to separate the radiation areas of the three powder adding heads.

[0007] In addition, the composite sintered magnet pressing and forming device according to the present invention may also have the following additional technical features:

[0008] Furthermore, the powder adding mechanism also includes a first drive assembly, which includes a connecting frame and a first telescopic driver. The first telescopic driver is arranged on the connecting frame, and the telescopic end of the first telescopic driver is connected to the lifting plate.

[0009] Furthermore, the fixed plate is provided with three slide grooves matching the first through grooves, and the powder adding mechanism also includes three groups of second drive components, each group of the second drive components includes a limit rod, a slider, a connector, and a first rotation driver, and the limit rod is slidably limited in the corresponding slide groove, wherein one end of two groups of powder adding heads are fixedly connected to the corresponding limit rods, and one end of the remaining group of powder adding heads is inserted into the corresponding limit rods, the slider is slidably arranged on the limit rod, and one end of the connector is rotatably connected to the slider, the first rotation driver is arranged on the fixed plate, and the output end of the first rotation driver is connected to the other end of the connector.

[0010] Furthermore, a second telescopic driver is provided between the fixed plate and the lifting plate. The second telescopic driver is provided on the fixed plate, and a telescopic end of the second telescopic driver is connected to the lifting plate.

[0011] Furthermore, a second through slot is provided on the lifting plate, one end of the second through slot is adapted to the width of one of the first through slots and is connected to each other, the second through slot extends along the center line direction of one side of the first through slot, the position adjustment component includes a guide rail, a clamping mechanism, and a third telescopic driver, the guide rail is provided on the lifting plate, the extension direction of the guide rail is parallel to the extension direction of the second through slot, the clamping mechanism is slidably provided on the guide rail, and is used to clamp the corresponding powder adding head, the third telescopic driver is provided on the fixed plate, and the telescopic end of the third telescopic driver is connected to the clamping mechanism.

[0012] Furthermore, a roller is rotatably provided on the powder adding head, the middle size of the roller is adapted to the first through groove, and the sizes of the two ends of the roller are larger than the middle size of the roller.

[0013] Furthermore, the composite sintered magnet pressing and forming device also includes a rotary mechanism that rotates horizontally and a pressing head. The connecting frame is arranged on the rotary mechanism, and the pressing head is arranged on the rotary mechanism and moves in the vertical direction.

[0014] Furthermore, the rotating mechanism includes a base, a second turntable, a second rotation driver, and a third rotation driver. The first turntable is rotatably arranged on the base, the second turntable rotates in a horizontal direction, the second turntable is rotatably arranged on the base, the second rotation driver is arranged on the base, and the output end of the second rotation driver is connected to the first turntable. The third rotation driver is arranged on the base, and the output end of the third rotation driver is connected to the second turntable.

[0015] Furthermore, a vibration motor is provided on the first turntable.

[0016] Furthermore, the first partition and the second partition are both provided with an outer frame and a plate provided on the outer frame, the outer frame is connected to the fixed plate via a pivot structure, and the pivot structure is used to drive the outer frame to flip up and down relative to the fixed plate.

[0017] The beneficial effects of the present invention include at least: by rotating the first turntable, the functions of filling and isostatic pressing of magnetic powder are realized in sequence; at the same time, by relying on the structural deformation of the powder adding mechanism, the relative positions of the three powder adding heads can be adjusted, so that according to actual needs, composite sintered magnets with different shapes of multiple layers combined in the horizontal direction can be produced by pressing and molding; and in the process of filling and pressing, the process steps are connected coherently and simply, and no human participation is required, which improves the preparation efficiency and is conducive to large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of a composite sintered magnet pressing and forming device in one embodiment of the present invention;

[0019] Figure 2 A schematic diagram of a portion of the structure of a powder adding mechanism in an embodiment of the present invention from a first viewing angle;

[0020] Figure 3 A schematic diagram of a partial structure of a powder adding mechanism according to an embodiment of the present invention from a second viewing angle;

[0021] Figure 4 A schematic structural diagram of a position adjustment assembly according to an embodiment of the present invention;

[0022] Figure 5 A schematic structural diagram of a second driving assembly in a first motion state according to an embodiment of the present invention;

[0023] Figure 6 A schematic structural diagram of a second driving assembly in a second motion state according to an embodiment of the present invention;

[0024] Figure 7 Schematic diagram of the assembly of the first partition in one embodiment of the present invention;

[0025] Figure 8 This is a schematic structural diagram of a first baffle in one embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of a first structure of a second partition in one embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of a second structure of a second partition in one embodiment of the present invention;

[0028] Description of main component symbols:

[0029] First turntable 100, rubber mold 200, powder adding mechanism 300, fixed plate 310, slide groove 311, lifting plate 320, first through groove 321, second through groove 322, powder adding head 330, first partition 340, second partition 350, position adjustment assembly 360, guide rail 361, clamping mechanism 362, third telescopic driver 363, first drive assembly 370, connecting frame 371, first telescopic driver 372, second drive assembly 380, limiting rod 381, slider 382, ​​connecting member 383, first rotary driver 384, static pressure mechanism 400, second telescopic driver 500, rotary mechanism 600, base 610, second turntable 620, second rotary driver 630, third rotary driver 640, pressing head 700, outer frame 800, plate 900;

[0030] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0031] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] Please refer to Figures 1 to 10 , a composite sintered magnet pressing and molding device provided by the present invention includes a first turntable 100, a rubber mold 200, a powder adding mechanism 300, and an isostatic pressing mechanism 400.

[0035] Specifically, the first turntable 100 rotates horizontally, with a first, second, and third workstations positioned sequentially along its rotational path. The rubber mold 200 is fixed to the first turntable 100. Optionally, the space within the rubber mold 200 for holding magnetic powder can be configured in a rectangular, circular, or other shape. A powder feeding mechanism 300 is positioned above the first turntable 100 and aligned with the rubber mold 200 in the first workstation. This mechanism allows magnetic powder to be added to the rubber mold 200. The powder feeding mechanism 300 comprises a fixed plate 310, a lifting plate 320, three powder feeding heads 330, a first baffle 340, a second baffle 350, and a position adjustment assembly 360. When the fixed plate 310 is in operation, it moves vertically. The lifting plate 320 is movably mounted on the fixed plate 310 and moves vertically when in operation. The lifting plate 320 is provided with three groups of first through grooves 321 arranged in a triangular shape. Preferably, the extension path of the first through grooves 321 is an equilateral triangle. The three powder adding heads 330 are respectively limited in the three first through grooves 321, and each powder adding head 330 can slide in the corresponding first through groove 321 along the extension path of the first through groove 321. The first partition 340 and the second partition 350 are both movably arranged on the fixed plate 310. The position adjustment component 360 drives the corresponding powder adding head 330 to leave the corresponding first through groove 321, and the moving direction of the powder adding head 330 moves on the extension path of a center line of the triangular arrangement area. The fixed plate 310 is provided with a hollow area corresponding to the moving path of the three powder adding heads 330 to avoid interference with the moving powder adding heads 330. The isostatic pressing mechanism 400 is positioned above the first turntable 100 and aligned with the rubber mold 200 in the second station. The isostatic pressing mechanism 400 first applies a magnetic field to orient the magnetic powder within the rubber mold 200. Then, the rubber mold 200 is subjected to quasi-isostatic pressure via isostatic pressing, ultimately producing a magnetic powder compact. It should be noted that the aforementioned isostatic pressing technique involves placing the rubber mold 200 to be pressed in a high-pressure vessel. The incompressible and uniform pressure-transmitting properties of a liquid or gaseous medium are utilized to uniformly pressurize the rubber mold 200 from all directions. When the liquid or gaseous medium is injected into the pressure vessel via a pressure pump, its pressure remains constant and uniformly transmitted in all directions, according to the principles of fluid mechanics. Consequently, the magnetic powder within the rubber mold 200 is subjected to uniform and consistent pressure in all directions. After compaction, the rubber mold 200 rotates via the first turntable 100 to the third station, where the magnetic powder compact can be unloaded manually or by a robotic arm.

[0036] In this embodiment, when the three powder adding heads 330 move in the corresponding first through slots 321 and the three powder adding heads 330 are arranged in a triangle, the first partition 340 is flipped to between the fixed plate 310 and the first turntable 100 to separate the radiation areas of the three powder adding heads 330. For example, the space for containing magnetic powder in the rubber mold 200 is circular, such as Figure 8 As shown, the three areas separated by the first partition 340 are fan-shaped, the middle fan-shaped area is filled with magnetic powder of one material, and the remaining two fan-shaped areas are filled with magnetic powder of another material. Correspondingly, when the three powder adding heads 330 move in the corresponding first through slots 321 and the three are arranged in a straight line, the first partition 340 flips to its original position, and the second partition 350 flips to between the fixed plate 310 and the first turntable 100, in order to separate the radiation areas of the three powder adding heads 330. For example, the space for containing magnetic powder in the rubber mold 200 is rectangular, as shown in FIG. Figure 9 、 Figure 10 As shown, the three areas separated by the second partition 350 are arranged in sequence along the horizontal direction, the left and right areas or the front and back areas are filled with magnetic powder of one material, and the middle area is filled with magnetic powder of another material.

[0037] In some optional embodiments, such as Figure 1 As shown, the powder adding mechanism 300 further includes a first drive assembly 370, which includes a connecting frame 371 and a first telescopic actuator 372. The first telescopic actuator 372 is fixedly mounted on the connecting frame 371, and the telescopic end of the first telescopic actuator 372 is connected to the lifting plate 320. When magnetic powder is added to the rubber mold 200 at the first station, the telescopic end of the first telescopic actuator 372 extends outward, thereby driving the fixed plate 310 and the lifting plate 320 to move downward until the three powder adding heads 330 and the first partition 340 or the second partition 350 are close to the rubber mold 200 on the first turntable 100. Correspondingly, when powder addition is complete, the telescopic end of the first telescopic actuator 372 retracts inward, thereby driving the fixed plate 310 and the lifting plate 320 to move upward until the three powder adding heads 330 and the first partition 340 or the second partition 350 are away from the rubber mold 200 on the first turntable 100. Optionally, the first telescopic driver 372 may adopt a power device such as a telescopic motor, a telescopic hydraulic cylinder, or a telescopic air cylinder.

[0038] In some optional embodiments, such as Figure 5 、 Figure 6As shown, the fixed plate 310 is provided with three chutes 311 that match the first through-slots 321. The powder adding mechanism 300 also includes three sets of second drive assemblies 380, each of which includes a limiting rod 381, a slider 382, ​​a connector 383, and a first rotary driver 384. Specifically, each limiting rod 381 is retained in a corresponding chute 311, and all three limiting rods 381 can slide within the corresponding chute 311 along the extension path of the chute 311, and each limiting rod 381 does not rotate during the sliding process. In addition, one end of two sets of powder adding heads 330 is fixedly connected to the corresponding limiting rod 381, while one end of the remaining set of powder adding heads 330 is plugged into the corresponding limiting rod 381. Each slider 382 is slidably set on the corresponding limit rod 381, one end of each connecting member 383 is rotatably connected to the corresponding slider 382, ​​each first rotation driver 384 is set on the fixed plate 310, and the output end of each first rotation driver 384 is connected to the other end of the corresponding connecting member 383.

[0039] In this embodiment, when the first rotary driver 384 drives the connecting member 383 to rotate, the limiting rod 381 slides along the extension path of the slide slot 311, and the slider 382 slides on the limiting rod 381. Under the coordinated movement of the limiting rod 381 and the slider 382, ​​the limiting rod 381 pushes the powder adding head 330 to slide along the extension path of the first through slot 321, thereby adjusting the relative positions of the three powder adding heads 330. Alternatively, the first rotary driver 384 can be powered by a rotary motor, a rotary hydraulic cylinder, a rotary pneumatic cylinder, or other power device.

[0040] In some optional embodiments, such as Figure 2 As shown, a second telescopic driver 500 is provided between the fixed plate 310 and the lifting plate 320 . The second telescopic driver 500 is fixedly mounted on the fixed plate 310 , and a telescopic end of the second telescopic driver 500 is connected to the lifting plate 320 .

[0041] In this embodiment, before the position adjustment component 360 takes effect, the second telescopic driver 500 drives the lifting plate 320 to move upward relative to the fixed plate 310, so that one group of powder adding heads 330 disengages from the corresponding limit rod 381. After that, the position adjustment component 360 can drive the powder adding head 330 to leave the corresponding first through groove 321 and allow the powder adding head 330 to move along an extension path of a center line of the triangular arrangement area.

[0042] In some optional embodiments, such as Figure 2 、 Figure 3As shown, the lifting plate 320 is provided with a second through-groove 322, one end of which is adapted to the width of one of the first through-grooves 321 and is in communication with each other. The second through-groove 322 extends along the center line of one side of the first through-groove 321, so that the corresponding powder adding head 330 can move from the first through-groove 321 to the second through-groove 322. Specifically, as Figure 4 As shown, the position adjustment assembly 360 includes a guide rail 361, a clamping mechanism 362, and a third telescopic driver 363. The guide rail 361 is provided on the lifting plate 320, and the extension direction of the guide rail 361 is parallel to the extension direction of the second through slot 322. The clamping mechanism 362 is slidably provided on the guide rail 361. When working, the clamping mechanism 362 is used to clamp the corresponding powder adding head 330. The third telescopic driver 363 is provided on the fixed plate 310, and the telescopic end of the third telescopic driver 363 is connected to the clamping mechanism 362.

[0043] In this embodiment, when one set of powder adding heads 330 is separated from the corresponding limiting rod 381, the clamping mechanism 362 clamps the corresponding powder adding head 330, and then the third telescopic driver 363 moves the powder adding head 330 from the corresponding first through slot 321 to the second through slot 322, and then moves the powder adding head 330 to the corresponding position of the second through slot 322. In conjunction with the movement of the other two sets of powder adding heads 330, the three powder adding heads 330 can be arranged in a straight line. Optionally, the clamping mechanism 362 can be a pneumatic telescopic clamping mechanism, a pneumatic rotary clamping mechanism, an electric telescopic clamping mechanism, an electric rotary clamping mechanism, or the like, and the third telescopic driver 363 can be a power device such as a telescopic motor, a telescopic hydraulic cylinder, or a telescopic air cylinder.

[0044] In some optional embodiments, to enable the powder adding head 330 to move smoothly within the corresponding first through-slot 321, a roller (not shown in the accompanying drawings) is rotatably mounted on the powder adding head 330. The roller's center dimension matches the first through-slot 321, and the dimensions of the roller's ends are larger than the roller's center dimension. It should be noted that during assembly, it is necessary to ensure that the roller can both roll within the first through-slot 321 and remain located and able to roll within the first through-slot 321 when the lifting plate 320 moves upward.

[0045] In some optional embodiments, such as Figure 1As shown, the composite sintered magnet pressing and forming apparatus further includes a horizontally rotating rotary mechanism 600 and a pressing head 700. The connecting frame 371 is mounted on the rotating mechanism 600, and the pressing head 700 is mounted on the rotating mechanism 600 and moves vertically. During operation, after the powder feeding mechanism 300 adds magnetic powder to the rubber mold 200, the fixed plate 310 moves upward, causing the powder feeding mechanism 300 to move upward as a whole. The rotating mechanism 600 then rotates, aligning the pressing head 700 with the rubber mold 200 at the first station. The pressing head 700 then moves downward to compact the magnetic powder filled in the rubber mold 200, thereby preventing gaps in the magnetic powder filled in the rubber mold 200 and affecting the quality of the final magnetic powder compact. Optionally, the pressing head 700 can be a hydraulic pressing head, an electric pressing head, a mechanically driven pressing head, an electromagnetic pressing head, or other pressing heads.

[0046] In some optional embodiments, such as Figure 1 As shown, the rotating mechanism 600 includes a base 610, a second turntable 620, a second rotation driver 630, and a third rotation driver 640. The first turntable 100 is rotatably arranged on the base 610, the second turntable 620 rotates in a horizontal direction, the second turntable 620 is rotatably arranged on the base 610, the second rotation driver 620 is arranged on the base 610, and the output end of the second rotation driver 630 is connected to the first turntable 100. The third rotation driver 640 is arranged on the base 610, and the output end of the third rotation driver 640 is connected to the second turntable 620.

[0047] In this embodiment, the second rotary driver 620 rotates the first turntable 100 during operation, thereby completing the workstation conversion. The third rotary driver 640 rotates the second turntable 620 during operation, thereby aligning the pressing head 700 with the rubber mold 200 at the first workstation, and aligning the powder adding mechanism 300 with the rubber mold 200 at the first workstation. Alternatively, the second rotary driver 620 may be powered by a rotary motor, a rotary hydraulic cylinder, a rotary cylinder, or the like, and the third rotary driver 640 may also be powered by a rotary motor, a rotary hydraulic cylinder, a rotary cylinder, or the like.

[0048] In some optional embodiments, a vibration motor (not shown in the accompanying drawings) is provided on the first turntable 100. When the powder adding mechanism 300 adds magnetic powder into the rubber mold 200 on the first turntable 100, the vibration of the vibration motor makes the magnetic powder in the rubber mold 200 evenly distributed, avoiding the generation of gaps, thereby ensuring that a higher quality magnetic powder compact is finally obtained.

[0049] In some optional embodiments, such as Figures 8 to 10As shown, the first partition 340 and the second partition 350 are both provided with an outer frame 800 and a plate 900 provided on the outer frame 800. The outer frame 800 is connected to the fixed plate 310 via a pivot structure. The pivot structure is used to drive the outer frame 800 to flip up and down relative to the fixed plate 310. The plate 900 is used to separate the radiation areas of the three powder adding heads 330. It should be noted that Figure 9 The second partition 350 is of a certain shape and size. Figure 10 The second partition 350 in the figure has another shape and size, which can be selected according to actual conditions. Of course, two types of second partitions 350 can also be assembled at the same time, but it is necessary to ensure that the positions of the two second partitions 350 do not interfere with each other.

[0050] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0051] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. A composite sintered magnet pressing and molding device, characterized in that: The composite sintered magnet pressing and forming device comprises: A first turntable rotating in the horizontal direction; a rubber mold, disposed on the first turntable; The powder adding mechanism is arranged above the first turntable and corresponds to the rubber mold in the first workstation. The powder adding mechanism includes a fixed plate, a lifting plate, three powder adding heads, a first partition, a second partition, a position adjustment component, a first drive component, and three groups of second drive components. The fixed plate moves in the vertical direction. The lifting plate is movably arranged on the fixed plate and moves in the vertical direction. The lifting plate is provided with three groups of first through grooves arranged in a triangular shape. The extension path of the first through groove is an equilateral triangle. The three powder adding heads are respectively slidably limited in the three first through grooves. The first partition and the second partition are both movably provided on the fixed plate. The position adjustment component drives the corresponding powder adding head to leave the corresponding first through groove and move on the extension path of a center line of the triangular arrangement area. The fixed plate is provided with a first drive component and a second drive component. The hollow area corresponding to the moving path of the head, the first driving assembly includes a connecting frame, a first telescopic driver, the first telescopic driver is arranged on the connecting frame, the telescopic end of the first telescopic driver is connected to the lifting plate, the fixed plate is provided with three slide grooves matching the first through-groove, each group of the second driving assembly includes a limit rod, a slider, a connecting piece, and a first rotation driver, the limit rod is slidably limited in the corresponding slide groove, one end of the two groups of powder adding heads are fixedly connected to the corresponding limit rod, and one end of the remaining group of powder adding heads is inserted into the corresponding limit rod, the slider is slidably provided on the limit rod, one end of the connecting piece is rotatably connected to the slider, the first rotation driver is provided on the fixed plate, and the output end of the first rotation driver is connected to the other end of the connecting piece; an isostatic pressing mechanism, disposed above the first turntable and corresponding to the rubber mold rotated to the second station; Among them, when the three powder adding heads are arranged in a triangle, the first partition is flipped to between the fixed plate and the first turntable to separate the radiation areas of the three powder adding heads; when the three powder adding heads are arranged in a straight line, the second partition is flipped to between the fixed plate and the first turntable to separate the radiation areas of the three powder adding heads.

2. The composite sintered magnet pressing and molding device according to claim 1, characterized in that: A second telescopic driver is provided between the fixed plate and the lifting plate. The second telescopic driver is provided on the fixed plate. A telescopic end of the second telescopic driver is connected to the lifting plate.

3. The composite sintered magnet pressing and forming device according to claim 2, characterized in that: The lifting plate is provided with a second through-groove, one end of which is adapted to the width of one of the first through-grooves and is in communication with each other, and the second through-groove extends along the center line of one side of the first through-groove. The position adjustment component includes: A guide rail is provided on the lifting plate, wherein an extension direction of the guide rail is parallel to an extension direction of the second through slot; A clamping mechanism, slidably disposed on the guide rail, for clamping the corresponding powder adding head; The third telescopic driver is arranged on the fixed plate, and the telescopic end of the third telescopic driver is connected to the clamping mechanism.

4. The composite sintered magnet pressing and molding device according to claim 1, characterized in that: A roller is rotatably provided on the powder adding head, the middle size of the roller is adapted to the first through groove, and the sizes of the two ends of the roller are larger than the middle size of the roller.

5. The composite sintered magnet pressing and molding device according to claim 1, characterized in that: The composite sintered magnet pressing and forming device further comprises a rotary mechanism and a pressing head which rotate in the horizontal direction. The connecting frame is arranged on the rotary mechanism. The pressing head is arranged on the rotary mechanism and moves in the vertical direction.

6. The composite sintered magnet pressing and forming device according to claim 5, characterized in that: The rotary mechanism comprises: a base, wherein the first turntable is rotatably mounted on the base; A second turntable that rotates horizontally and is rotatably mounted on the base; a second rotary driver, disposed on the base, wherein an output end of the second rotary driver is connected to the first turntable; The third rotary driver is provided on the base, and the output end of the third rotary driver is connected to the second turntable.

7. The composite sintered magnet pressing and forming device according to claim 5, characterized in that: The first turntable is provided with a vibration motor.

8. The composite sintered magnet pressing and forming device according to any one of claims 1 to 7, characterized in that: The first partition and the second partition are both provided with an outer frame and a plate provided on the outer frame. The outer frame is connected to the fixed plate via a pivot structure, and the pivot structure is used to drive the outer frame to flip up and down relative to the fixed plate.

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