A reciprocating platform for uniform powder distribution in NdFeB radial cylindrical forming molds

Abstract

This invention proposes a reciprocating platform for uniform powder distribution in a NdFeB radial cylindrical forming mold. The platform includes a base plate, a moving platform, and a drive mechanism. The moving platform is equipped with a clamping mechanism for holding the forming mold. A sliding mechanism is located below the moving platform, and the moving platform is laterally slidably connected to the base plate via the sliding mechanism. The drive mechanism drives the moving platform to reciprocate laterally. This invention provides a reciprocating platform for uniform powder distribution in a NdFeB radial cylindrical forming mold, enabling automatic and uniform reciprocating motion of the mold, eliminating reliance on manual operation, and featuring a stable and compact structure.

Description

Technical Field

[0001] This utility model relates to the field of magnetic material production equipment, specifically to a reciprocating platform for uniformly distributing powder in a radial cylindrical forming mold for neodymium iron boron. Background Technology

[0002] In the molding process of NdFeB materials, the uniform powder distribution step is of crucial and irreplaceable importance, having a decisive impact on the quality and performance of the final product. As a high-performance permanent magnet material, NdFeB has wide applications in many important fields such as electronics, automobiles, and energy. Furthermore, with the advancement of technology, increasingly stringent performance requirements are being placed on products made using NdFeB materials, which in turn demands higher standards for the precision and quality of NdFeB cylindrical molding.

[0003] Traditional powder application methods primarily rely on manual operation or the use of relatively simple fixed mold devices. Manual operation has significant drawbacks, including extremely low efficiency due to the limited operating speed of operators and the fatigue that easily occurs during prolonged operation, thus affecting work efficiency. More importantly, manual operation involves numerous human factors that severely interfere with the uniformity of powder application. Operators struggle to accurately control the amount and location of powder application, often resulting in uneven powder accumulation within the mold. This directly leads to density differences within the molded product. Uneven density has a significant negative impact on the product's magnetic and physical properties. For example, it may cause uneven magnetic field distribution, affecting magnetic strength and stability, and reducing mechanical strength and other physical properties. Furthermore, the consistency of manual operation is difficult to guarantee, leading to significant quality fluctuations between different batches. This is a serious problem for large-scale production and cannot meet the requirements of modern large-scale, high-quality production.

[0004] Existing automated powder distribution structures also have some problems. A prominent issue is their large size, occupying excessive production space, which poses a significant challenge for companies with limited production space. Furthermore, existing automated powder distribution structures are not stable enough during shaking, easily resulting in swaying. This swaying disrupts the originally relatively uniform powder distribution, affecting the uniformity and accuracy of powder distribution, and consequently impacting the quality of the final product. In some cases, swaying may cause the already laid powder to shift or redistribute, leading to localized density discrepancies, reduced product yield, and increased product quality instability, making it difficult to meet the high requirements for consistency and stability in high-performance NdFeB products. Summary of the Invention

[0005] The problem this utility model aims to solve is to provide a reciprocating platform for uniformly distributing powder in a radial cylindrical forming mold of neodymium iron boron, so as to realize the automatic uniform reciprocating motion of the mold, eliminating the need for manual operation, and with a stable and compact structure.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: a reciprocating platform for uniformly distributing powder in a radial cylindrical forming mold of NdFeB iron boron iron oxide, comprising a base plate frame, a moving platform, and a drive mechanism. The moving platform is equipped with a clamping mechanism for clamping the forming mold, and a sliding mechanism is provided below the moving platform. The moving platform is laterally slidably connected to the base plate frame via the sliding mechanism. The drive mechanism drives the moving platform to reciprocate laterally. By driving the moving platform to slide laterally, the mold's movement is automated, eliminating reliance on manual operation. This allows the powder distribution process to be continuous and efficient, greatly improving production efficiency. Compared to traditional manual operation, this automated operation mode avoids the inefficiency caused by inconsistent human operating speed and fatigue, making it suitable for large-scale production needs.

[0007] Furthermore, the sliding mechanism includes a sliding column arranged laterally on one side below the moving platform, a rolling support assembly on the other side below the moving platform, and a guide block mounted on the base plate. The guide block has a mating hole arranged laterally, and the outer wall of the sliding column slides into the mating hole. The rolling support assembly maintains consistent height on both sides of the moving platform when the sliding column engages with the mating hole. The precise sliding engagement between the sliding column and the mating hole ensures linear movement of the moving platform, preventing lateral offset from affecting powder distribution. The rolling support assembly uses rollers to ensure consistent height on both sides of the platform, balancing the moving platform, preventing tilting that could cause uneven powder distribution, and reducing frictional resistance to ensure smooth and stable movement.

[0008] Furthermore, the rolling support assembly includes several connecting blocks fixed laterally at intervals on the lower end face of the opposite side below the moving platform. Rollers are rotatably connected to the lower part of each connecting block, and the outer circumference of each roller engages with the rolling surface of the base plate. This rolling engagement converts sliding friction into rolling friction, reducing friction, making driving easier, improving motion smoothness and precision, and facilitating uniform powder distribution. Multiple rollers distribute the load, reducing wear, and the rotating connection reduces the risk of damage, ensuring long-term stable operation of the system.

[0009] Furthermore, the rollers employ precision bearings, with the inner ring of the bearings fixed to the connecting block using fasteners, and the outer ring of the precision bearings rollingly engaging with the base plate frame. The precision bearings ensure more precise and stable roller movement, reducing platform sway and offset, and guaranteeing uniform powder distribution.

[0010] Furthermore, the drive mechanism includes a drive motor, a rocker arm, and a connecting rod. The drive motor is fixedly mounted on the base plate frame. The rocker arm is fixedly connected to the output shaft of the drive motor. An adjustment groove is formed on the rocker arm along the radial direction of the output shaft. A pivot shaft is slidably connected within the adjustment groove. A clamping mechanism is provided on the pivot shaft to fix it within the adjustment groove. The first end of the connecting rod is hinged to the moving platform, and the second end is hinged to the pivot shaft. The motor drives the platform's movement precisely via the rocker arm, adjustable pivot shaft, and connecting rod, ensuring uniform powder distribution.

[0011] Furthermore, the base frame includes a base and a side plate vertically mounted on the base. The drive motor is fixedly mounted on one side of the side plate, and the guide block is fixedly mounted on the other side of the side plate. The axis of the mating hole of the guide block is on the same plane as the axis of the output shaft of the drive motor. The fact that the axis of the mating hole of the guide block is on the same plane as the axis of the output shaft of the drive motor ensures the linearity of power transmission, reduces deviations during movement, and facilitates precise lateral reciprocating movement of the moving platform, thereby ensuring uniform powder distribution. Attached Figure Description

[0012] Figure 1 This is a perspective view of the present utility model;

[0013] Figure 2 This is a perspective view of the concealed base plate frame of this utility model;

[0014] Figure 3 This is a top view of the present invention;

[0015] Figure 4 This is a cross-sectional view of the pivot shaft, rocker arm, and connecting rod connection part of this utility model.

[0016] Figure 5 This is a front view of the adjustment groove portion of this utility model.

[0017] Diagram: 1. Base plate frame; 1.1. Base; 1.2. Side plate; 2. Moving platform; 3. Drive mechanism; 3.1. Drive motor; 3.1.1. Output shaft; 3.2. Rocker arm; 3.2.1. Adjustment groove; 3.3. Connecting rod; 3.3.1. First end; 3.3.2. Second end; 3.3.3. Fisheye bearing seat; 4. Molding mold; 5. Clamping mechanism; 5.1. Transverse support plate; 5.2. Longitudinal support plate; 5.3. Clamping assembly; 5.3.1 5.3.1 Connecting block; 6.3.2 Elastic drive component; 6.4 Pivot shaft; 6.5 Limiting part; 6.6.2 Threaded part; 6.6.3 Fastener; 6.7 Fisheye body; 6.4.1 Fisheye part; 6.4.2 Connecting hole; 6.6.5 Gasket; 7.8 Sliding mechanism; 7.1 Sliding column; 7.2 Rolling support assembly; 7.2.1 Support block; 7.2.2 Roller; 7.2.2A Precision bearing; 7.3 Guide block; 7.3.1 Mating hole. Detailed Implementation

[0018] Before describing any embodiment of this invention in detail, it should be understood that the invention is not limited in its application to the details of the construction and arrangement of the components set forth in the following description or illustrated in the following figures. The invention is capable of other embodiments and can be practiced or carried out in various ways. Furthermore, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered limiting. The use of “comprising” or “having” and variations thereof herein is intended to cover the items set forth below and their equivalents, as well as any additional items. Unless otherwise specified or limited, the terms “installation,” “connection,” “support,” and “linkage,” and variations thereof are used broadly and cover both direct and indirect installation, connection, support, and linking. Moreover, “connection” and “linkage” are not limited to physical or mechanical connections or links.

[0019] Furthermore, firstly, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as a limitation on this utility model. Secondly, the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0020] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

[0021] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0022] Please see Figures 1 to 2 A swaying mechanism for uniformly distributing powder in a neodymium iron boron cylindrical forming mold mainly consists of a base plate frame 1, a moving platform 2, and a drive mechanism 3. The base plate frame 1 serves as the basic support structure for the entire mechanism, providing a stable support for the installation and operation of other components.

[0023] A clamping mechanism 5 is provided on the upper surface of the mobile platform 2. This mechanism includes a transverse support plate 5.1 and a longitudinal support plate 5.2.

[0024] The transverse support plate 5.1 is firmly fixed to the transverse side of the upper surface of the moving platform 2, while the longitudinal support plate 5.2 is fixed to the longitudinal side. The two provide preliminary positioning references for the forming mold 4 from one direction, transverse and longitudinal, respectively.

[0025] Please refer to Figure 3 On the other side of the upper surface of the mobile platform 2, several clamping components 5.3 are distributed at intervals. Each clamping component 5.3 consists of a connecting block 5.3.1 fixed to the other side of the mobile platform 2 and an elastic driving component 5.3.2 mounted on the connecting block 5.3.1. The elastic driving component 5.3.2 can press the molding die 4 placed on the mobile platform 2 towards the longitudinal backing plate 5.2. The elastic driving component here can be a ball screw, which is a common standard screw available on the market. It includes a body threaded to the connecting plate in the direction towards the longitudinal backing plate 5.2, with a spring installed inside. A ball is installed at the end of the ball facing the longitudinal backing plate 5.2. The spring applies a spring force to the ball towards the longitudinal backing plate 5.2 to press the molding die 4 towards the longitudinal backing plate 5.2.

[0026] Below the mobile platform 2, a corresponding sliding mechanism 7 is provided. This sliding mechanism 7 consists of several parts, as detailed below:

[0027] First, a sliding column 7.1 is arranged laterally on one side below the mobile platform 2; second, a rolling support assembly 7.2 is provided on the other side below the mobile platform 2; third, a guide block 7.3 is installed on the base plate frame 1. The guide block 7.3 has a mating hole 7.3.1 in the lateral direction, and the outer wall of the sliding column 7.1 is in a sliding fit with this mating hole 7.3.1.

[0028] The rolling support assembly 7.2 plays a unique role, primarily ensuring that both sides of the moving platform 2 maintain a consistent height when the sliding column 7.1 and the mating hole 7.3.1 are engaged. Specifically, the rolling support assembly 7.2 includes multiple support blocks 7.2.1, which are laterally spaced and fixed to the lower end face of the opposite side of the moving platform 2. A roller 7.2.2 is rotatably connected to the lower part of each support block 7.2.1. The outer periphery of these rollers 7.2.2 engages with the rolling surface of the base plate 1.

[0029] Furthermore, roller 7.2.2 uses precision bearing 7.2.2A. The specific installation method is to firmly fix the inner ring of precision bearing 7.2.2A to support block 7.2.1 using fastener 6.3, while ensuring that the outer ring of precision bearing 7.2.2A and the rolling surface of base plate 1 form a rolling fit.

[0030] Please refer to Figures 4 to 5 The drive mechanism 3 provides power to the entire mechanism and drives its operation.

[0031] The drive motor 3.1 is securely fixed on the base plate 1, and its output shaft 3.1.1 is rigidly connected to the rocker arm 3.2. The rocker arm 3.2 has an adjustment groove 3.2.1 radially along the output shaft 3.1.1 of the drive motor 3.1, and a pivot shaft 6 is slidably connected within the adjustment groove 3.2.1. One end of the pivot shaft 6 has a limiting part 6.1 that serves as a limit, and the other end has a threaded part 6.2. The threaded part 6.2 passes through the adjustment groove 3.2.1, causing the limiting part 6.1 to abut against one side of the rocker arm 3.2, and a fastener 6.3 (a standard nut) is threaded onto the threaded part 6.2. On the pivot shaft 6, a fisheye body 6.4 and a washer 6.5 are fitted between the fastener 6.3 and the other side of the rocker arm 3.2. The fisheye body 6.4 includes a unique fisheye portion 6.4.1 and a connecting hole 6.4.2 penetrating the fisheye portion 6.4.1. The second end 3.3.2 of the connecting rod 3.3 is provided with a fisheye bearing seat 3.3.3. The connecting hole 6.4.2 of the fisheye body 6.4 is tightly inserted and fixed on the pivot shaft 6. The inner wall of the fisheye bearing seat 3.3.3 is connected to the inner wall of the fisheye portion 6.4.1 and can rotate around the axis of the pivot shaft 6 and produce a certain degree of wobble. At the same time, the adjusting groove 3.2.1 has a special structural design, that is, the groove width near the axis of the output shaft 3.1.1 is wider than the groove width away from the axis of the output shaft 3.1.1.

[0032] The base frame 1 includes a base 1.1 and a side plate 1.2 vertically mounted on the base 1.1. The drive motor 3.1 is fixedly mounted on one side of the side plate 1.2, and the guide block 7.3 is fixedly mounted on the other side of the side plate 1.2. The axis of the mating hole 7.3.1 of the guide block 7.3 is on the same plane as the axis of the output shaft 3.1.1 of the drive motor 3.1.

[0033] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A reciprocating platform for uniformly distributing powder in a radial cylindrical forming mold for NdFeB magnets, characterized in that: The system includes a base plate frame (1), a moving platform (2), and a drive mechanism (3). The moving platform (2) is equipped with a clamping mechanism (5) for clamping the forming mold (4). A sliding mechanism (7) is provided below the moving platform (2). The moving platform (2) is laterally slidably connected to the base plate frame (1) through the sliding mechanism (7). The drive mechanism (3) is used to drive the moving platform (2) to move laterally reciprocally.

2. The reciprocating platform for uniform powder distribution in a radial cylindrical forming mold of NdFeB iron boron iron oxide ... The sliding mechanism (7) includes a sliding column (7.1) arranged horizontally on one side below the moving platform (2), a rolling support component (7.2) arranged on the other side below the moving platform (2), and a guide block (7.3) mounted on the base plate frame (1). The guide block (7.3) has a mating hole (7.3.1) arranged horizontally. The outer wall of the sliding column (7.1) is slidably engaged with the mating hole (7.3.1). The rolling support component (7.2) is used to keep the height of both sides of the moving platform (2) consistent when the sliding column (7.1) is engaged with the mating hole (7.3.1).

3. The reciprocating platform for uniform powder distribution in a radial cylindrical forming mold of NdFeB iron boron iron oxide as described in claim 2, characterized in that: The rolling support assembly (7.2) includes several support blocks (7.2.1) fixed at a horizontal interval on the lower end face of the other side below the moving platform (2). The lower part of the support block (7.2.1) is rotatably connected to a roller (7.2.2), and the outer periphery of the roller (7.2.2) rolls in cooperation with the rolling surface of the base plate frame (1).

4. The reciprocating platform for uniform powder distribution in a radial cylindrical forming mold of NdFeB iron boron iron oxide ... The roller (7.2.2) uses a precision bearing (7.2.2A). The inner ring of the precision bearing is fixed to the support block (7.2.1) by fasteners (6.3), and the outer ring of the precision bearing (7.2.2A) is rolled in contact with the base plate frame (1).

5. The reciprocating platform for uniform powder distribution in a radial cylindrical forming mold of NdFeB iron boron iron oxide ... The drive mechanism (3) includes a drive motor (3.1), a rocker arm (3.2), and a connecting rod (3.3). The drive motor (3.1) is fixedly mounted on the base plate frame (1). The rocker arm (3.2) is fixedly connected to the output shaft (3.1.1) of the drive motor (3.1). An adjustment groove (3.2.1) is provided on the rocker arm (3.2) along the radial direction of the output shaft (3.1.1). A pivot shaft (6) is slidably connected in the adjustment groove (3.2.1). A clamping mechanism is provided on the pivot shaft (6) to fix the pivot shaft (6) in the adjustment groove (3.2.1). The first end (3.3.1) of the connecting rod (3.3) is hinged to the moving platform (2), and the second end (3.3.2) is hinged to the pivot shaft (6).

6. The reciprocating platform for uniform powder distribution in a radial cylindrical forming mold of NdFeB iron boron iron oxide as described in claim 5, characterized in that: The base frame (1) includes a base (1.1) and a side plate (1.2) vertically mounted on the base (1.1). The drive motor (3.1) is fixedly mounted on one side of the side plate (1.2), and the guide block (7.3) is fixedly mounted on the other side of the side plate (1.2). The axis of the mating hole (7.3.1) of the guide block (7.3) is on the same plane as the axis of the output shaft (3.1.1) of the drive motor (3.1).

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