Neodymium iron boron alloy sheet pressing device

Abstract

This utility model discloses a neodymium iron boron (NdFeB) alloy sheet pressing device, relating to the field of NdFeB alloy sheet pressing devices. It includes a pressing table and an electromagnet positioned above a pressure plate. When the electromagnet is energized, it generates magnetism; changing the direction of energization produces magnetic poles that attract or repel the NdFeB alloy sheet. A pressure plate is positioned above the pressing table. As the pressure plate rises and falls, it presses against a worktable on the upper surface of the pressing table, pressing NdFeB alloy powder stored on the worktable to form NdFeB alloy sheets. When the electromagnet attracts the NdFeB alloy sheet, the pressed NdFeB alloy sheet is attracted to the lower surface of the pressure plate, allowing it to be removed from the enclosure when the pressure plate is raised. When the electromagnet repels the NdFeB alloy sheet, the sheet adsorbed on the lower surface of the pressure plate detaches, facilitating easy removal of the NdFeB alloy sheet. This device is highly practical.

Description

Technical Field

[0001] This utility model relates to the field of NdFeB alloy sheet pressing device, and particularly to a NdFeB alloy sheet pressing device. Background Technology

[0002] Neodymium iron boron (NdFeB) alloys are widely used in high-performance permanent magnet materials due to their excellent magnetic properties, especially in the electronics, automotive, and aerospace industries. NdFeB alloy sheets are typically produced using a pressing process, where powdered material is shaped under high temperature and pressure to achieve the desired shape and properties. However, existing pressing processes and equipment have some limitations in practical applications, restricting further improvements in production efficiency and product quality.

[0003] In traditional pressing processes, neodymium iron boron alloy sheets typically need to be manually removed from the mold after pressing. Because neodymium iron boron alloy sheets have high hardness and brittleness, manual demolding can easily damage the sheets, affecting product quality. Furthermore, manual demolding is inefficient and increases production costs.

[0004] Therefore, it is necessary to propose a neodymium iron boron alloy sheet pressing device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a neodymium iron boron alloy sheet pressing device to solve the problems of low demolding efficiency and easy damage to products.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a neodymium iron boron alloy sheet pressing device, comprising:

[0007] A pressing table, with a pressure plate above it, presses the neodymium iron boron alloy powder stored on the worktable on the upper surface of the pressing table when the pressure plate is raised and lowered, forming neodymium iron boron alloy sheets.

[0008] The electromagnet positioned above the pressure plate generates magnetism when energized. When the direction of the electromagnet's current changes, it generates magnetic poles that attract or repel the neodymium iron boron alloy sheet.

[0009] Preferably, a barrier is provided on the worktable surface of the upper surface of the pressing table, which surrounds the upper surface of the pressing table to form a closed pressing area, the size of which is adapted to the size of the pressing plate.

[0010] Preferably, the enclosure is integrally provided with a connecting edge around its perimeter, and the connecting edge is fixedly installed on the worktable surface of the pressing table by screws.

[0011] Preferably, a pressing table top plate is integrally provided above the pressing table, and a driving mechanism for driving the pressing plate to rotate or rise and fall is installed on the pressing table top plate.

[0012] Preferably, the driving mechanism includes a motor, which is fixedly mounted on the lower surface of the top plate of the pressing table and is used to drive the pressing plate to rotate.

[0013] Preferably, the drive mechanism further includes an electric push rod, which is detachably connected between the pressure plate and the motor.

[0014] Preferably, the lower end of the electric push rod is mounted on the upper surface of the pressure plate by a screw and a nut, a circular connecting plate is fixedly connected to the shaft at the lower end of the motor, and the upper end of the electric push rod is detachably connected to the lower surface of the circular connecting plate by screws and a connecting plate.

[0015] Preferably, a spring telescopic guide rod is fixedly installed on the upper surface of the pressure plate, and at least two sets of spring telescopic guide rods are provided. The upper end of the spring telescopic guide rod is fixedly connected to the lower surface of the top plate of the pressing table.

[0016] Preferably, a stabilizing ring is fixedly provided on the lower surface of the pressing table top plate, a guide ring is fixedly provided on the inner ring of the stabilizing ring, an annular groove is provided on the inner ring of the guide ring, and balls are evenly and movably embedded on the outer periphery of the circular connecting plate, with the balls rolling in the annular groove.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. When the electromagnet attracts the NdFeB alloy sheet, the pressed NdFeB alloy sheet can be attracted to the lower surface of the pressure plate. When the pressure plate is raised, the NdFeB alloy sheet can be removed from the enclosure, making demolding convenient. When the electromagnet repels the NdFeB alloy sheet, the NdFeB alloy sheet attracted to the lower surface of the pressure plate can detach, making it easy to remove the NdFeB alloy sheet. It is highly practical.

[0019] 2. When the motor drives the pressure plate to rotate, the pressure plate can first further distribute the NdFeB alloy powder in the pressing area evenly, and then drive the pressure plate to descend to press the evenly distributed NdFeB alloy powder. The degree of automation is high, eliminating the need for manual uniform powder material. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the neodymium iron boron alloy sheet pressing device of this utility model.

[0021] Figure 2 This is a schematic diagram of the circular connecting plate structure of this utility model.

[0022] In the diagram: 1. Pressing table; 2. Pressing table top plate; 3. Pressing plate; 4. Enclosure; 5. Connecting edge; 6. Electric push rod; 7. Electromagnet; 8. Stabilizing ring; 9. Guide ring; 10. Motor; 11. Circular connecting plate; 12. Spring telescopic guide rod; 13. Ball bearing. Detailed Implementation

[0023] This utility model provides, for example Figures 1-2 The device shown is a NdFeB alloy sheet pressing device, which can press NdFeB alloy sheets.

[0024] refer to Figure 1 As shown, the NdFeB alloy sheet pressing device includes a pressing table 1, a pressing table top plate 2 is provided above the pressing table 1, a driving mechanism is installed on the pressing table top plate 2, and a pressure plate 3 is provided below the driving mechanism. The driving mechanism can drive the pressure plate 3 to rotate and rise and fall. When the driving mechanism drives the pressure plate 3 to descend, it can press the NdFeB alloy on the surface of the pressing table 1 to form NdFeB alloy sheets.

[0025] It should be noted that the worktable surfaces of pressure plate 3 and pressing table 1 are both made of tungsten and chromium alloy materials, which will not attract or repel the NdFeB alloy sheets, thus reducing the pressing effect; and the hardness is higher than that of NdFeB alloy sheets, making them suitable for pressing NdFeB alloys.

[0026] A barrier 4 is provided on the worktable surface of the upper surface of the pressing table 1. The barrier 4 surrounds the upper surface of the pressing table 1 to form a closed pressing area. The size of this pressing area is adapted to the size of the pressing plate 3. When pressing, neodymium iron boron alloy powder is evenly poured into the pressing area to perform pressing.

[0027] It should be noted that hot pressing is usually used when pressing NdFeB alloy sheets. Therefore, there is usually an electric heating plate or other device inside the pressing plate 3 or the pressing table 1 for heating the NdFeB alloy powder. However, this is existing technology and will not be described in detail here.

[0028] The pressure plate 3 and the enclosure 4 are detachably connected to the worktable surface on the upper surface of the drive mechanism and the pressing table 1, respectively, so as to facilitate the installation of the appropriate size pressure plate 3 and enclosure 4 according to the actual size of the NdFeB alloy sheet; and to facilitate adjustment.

[0029] Specifically, the enclosure 4 is integrally provided with a connecting edge 5 around its perimeter. The connecting edge 5 is fixedly installed on the worktable surface of the pressing table 1 by screws, thus realizing a detachable connection.

[0030] The drive mechanism includes:

[0031] Motor 10 is fixedly installed on the lower surface of the top plate 2 of the pressing table and is used to drive the pressure plate 3 to rotate. When the motor 10 drives the pressure plate 3 to rotate, the pressure plate 3 can first further distribute the neodymium iron boron alloy powder in the pressing area evenly.

[0032] The electric push rod 6 is detachably connected between the pressure plate 3 and the motor 10. Specifically, the lower end of the electric push rod 6 is installed on the upper surface of the pressure plate 3 by means of screws and nuts. A circular connecting plate 11 is fixedly connected to the shaft at the lower end of the motor 10. The upper end of the electric push rod 6 is detachably connected to the lower surface of the circular connecting plate 11 by means of screws and connecting discs. When the electric push rod 6 is started, it can drive the pressure plate 3 to rise and fall, thereby realizing the pressing of neodymium iron boron alloy powder.

[0033] To ensure that the pressure plate 3 can rise and fall stably, a spring telescopic guide rod 12 is fixedly installed on the upper surface of the pressure plate 3 in this utility model. At least two sets of spring telescopic guide rods 12 are provided. The upper end of the spring telescopic guide rod 12 is fixedly connected to the lower surface of the top plate 2 of the pressing table. When the pressure plate 3 rises and falls, the spring telescopic guide rod 12 rises and falls adaptively to guide. The spring telescopic guide rod 12 is a common guiding mechanism, which will not be described in detail here.

[0034] refer to Figure 1 and Figure 2 As shown, in order to ensure that the pressure plate 3 can rotate stably, a stabilizing ring 8 is fixedly installed on the lower surface of the top plate 2 of the pressing table, a guide ring 9 is fixedly installed on the inner ring of the stabilizing ring 8, and an annular groove is provided on the inner ring of the guide ring 9. Balls 13 are evenly and movably embedded on the outer periphery of the circular connecting plate 11. When the motor 10 drives the circular connecting plate 11, the electric push rod 6 and the pressure plate 3 to rotate, the balls 13 can roll in the annular groove to achieve the purpose of stabilizing the rotation state of the pressure plate 3.

[0035] Furthermore, an electromagnet 7 is fixedly installed on the upper surface of the pressure plate 3. When the electromagnet 7 is energized, it can generate magnetism, and the direction of current flow in the electromagnet 7 can be controlled by existing commutators, relays, etc., to achieve the purpose of changing the magnetic poles of the electromagnet 7. When the electromagnet 7 attracts the NdFeB alloy sheet, the pressed NdFeB alloy sheet can be attracted to the lower surface of the pressure plate 3. When the pressure plate 3 is raised, the NdFeB alloy sheet can be taken out from the enclosure 4, making demolding convenient. When the electromagnet 7 repels the NdFeB alloy sheet, the NdFeB alloy sheet attracted to the lower surface of the pressure plate 3 can detach, thus making it easy to remove the NdFeB alloy sheet, which is highly practical.

Claims

1. A pressing device for neodymium iron boron alloy sheets, characterized in that, include: A pressing table (1) is provided above the pressing table (1). When the pressing table (1) is raised and lowered, it presses against the worktable on the upper surface of the pressing table (1) to press the neodymium iron boron alloy powder stored on the worktable and form it into a neodymium iron boron alloy sheet. An electromagnet (7) is placed above the pressure plate (3). When the electromagnet (7) is energized, it generates magnetism. When the energizing direction of the electromagnet (7) changes, it generates magnetic poles that attract or repel the neodymium iron boron alloy sheet.

2. The neodymium iron boron alloy sheet pressing device according to claim 1, characterized in that: The upper surface of the pressing table (1) is provided with a barrier (4), which surrounds the upper surface of the pressing table (1) to form a closed pressing area. The size of the pressing area is adapted to the size of the pressing plate (3).

3. The neodymium iron boron alloy sheet pressing device according to claim 2, characterized in that: The enclosure (4) is integrally provided with a connecting edge (5) around its perimeter, and the connecting edge (5) is fixedly installed on the worktable surface of the pressing table (1) by screws.

4. The neodymium iron boron alloy sheet pressing device according to claim 1, characterized in that: The pressing table (1) is integrally provided with a pressing table top plate (2) above it, and a driving mechanism for driving the pressing plate (3) to rotate or rise and fall is installed on the pressing table top plate (2).

5. The neodymium iron boron alloy sheet pressing device according to claim 4, characterized in that: The driving mechanism includes a motor (10), which is fixedly installed on the lower surface of the top plate (2) of the pressing table and is used to drive the pressing plate (3) to rotate.

6. The neodymium iron boron alloy sheet pressing device according to claim 5, characterized in that: The drive mechanism also includes an electric push rod (6), which is detachably connected between the pressure plate (3) and the motor (10).

7. The neodymium iron boron alloy sheet pressing device according to claim 6, characterized in that: The lower end of the electric push rod (6) is installed on the upper surface of the pressure plate (3) by a screw and nut. A circular connecting plate (11) is fixedly connected to the shaft at the lower end of the motor (10). The upper end of the electric push rod (6) is detachably connected to the lower surface of the circular connecting plate (11) by screws and connecting discs.

8. The neodymium iron boron alloy sheet pressing device according to claim 4, characterized in that: The upper surface of the pressure plate (3) is fixedly installed with a spring telescopic guide rod (12). At least two sets of spring telescopic guide rods (12) are provided, and the upper end of the spring telescopic guide rod (12) is fixedly connected to the lower surface of the pressure table top plate (2).

9. The neodymium iron boron alloy sheet pressing device according to claim 7, characterized in that: A stabilizing ring (8) is fixedly provided on the lower surface of the top plate (2) of the pressing platform. A guide ring (9) is fixedly provided on the inner ring of the stabilizing ring (8). An annular groove is provided on the inner ring of the guide ring (9). Balls (13) are evenly and movably embedded on the outer periphery of the circular connecting plate (11). The balls (13) are rolled in the annular groove.

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