A magnetic attraction device

Abstract

The utility model belongs to mechanical equipment technical field discloses a kind of magnetic attraction device, including mounting plate, and handle connected to mounting plate, the side of mounting plate away from handle is connected with the contact plate of interval arrangement, and magnet is placed between with contact plate, mounting plate is equipped with multiple through holes, magnet is connected with multiple connecting rods, each connecting rod is passed through through hole, and the end away from magnet is connected with pressure handle, and elastic member is connected between pressure handle and mounting plate, elastic member makes pressure handle have the tendency of away from mounting plate, to make magnet away from contact plate.The utility model realizes the efficient, neat adsorption and release of workpiece magnetic steel by the synergistic effect of magnet and elastic member, simple operation, and without direct contact workpiece, avoid coating scratch.It has no external energy consumption, is suitable for a variety of workpiece shape size, has the advantages of high efficiency, high consistency and low cost, significantly improves boxing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment technology, and in particular relates to a magnetic attraction device. Background Technology

[0002] In the production process of an automated grain boundary diffusion coating line, the boxing step is a crucial and challenging process. The purpose of this step is to remove the coated workpiece magnets from the workpiece tray, arrange them in a specific order on a ceramic plate or stainless steel sheet, and finally pack them into a graphite box. Existing boxing methods face several main challenges, particularly in ensuring efficient operation and avoiding coating damage. Currently, there are two main boxing methods:

[0003] Method 1: Manual Tweezers Operation: This method relies on manually using tweezers to pick up the magnet pieces one by one and place them onto the ceramic plate or stainless steel sheet. Although this method is simple to operate, it is inefficient, especially for small magnet pieces, where the operation with tweezers is extremely slow. Moreover, manual handling can easily cause accidental bumps or scratches to the workpiece, leading to damage to the coating and affecting the performance of the workpiece after diffusion.

[0004] Method 2: Workpiece Disk Reversal Method: This method involves placing a ceramic plate or stainless steel sheet over the workpiece magnets on the workpiece disk, then reversing the entire disk along with the ceramic plate or stainless steel sheet. The workpiece magnets fall onto the ceramic plate or stainless steel sheet due to gravity. While this method is relatively efficient, loading one box can be completed in 5 to 10 minutes, it is complex and requires skilled workers. Furthermore, improper operation during reversal can easily lead to irregular alignment of the workpiece magnets, and friction between the workpiece and the ceramic plate can scratch the coating, affecting the consistency of the workpiece's diffusion performance.

[0005] Existing technologies suffer from inefficiency in the boxing process, especially for small-sized or complex-shaped magnets. Manually handling them with tweezers is far from sufficient for mass production. Even with the reversal method, manual operation is still affected by skill level and operational standards, resulting in limited efficiency improvements. Secondly, there's the issue of coating scratches. Whether manual or using the reversal method, friction between the workpiece and the ceramic plate or stainless steel sheet is unavoidable when handling the magnets, easily causing scratches or damage to the sprayed coating. This not only affects the workpiece's appearance but also disrupts the uniformity of the diffusion source coating, reducing the magnet's performance. Furthermore, the process is complex and requires skilled operators. While the reversal method improves efficiency to some extent, its relatively complex process demands high operator skill and is prone to irregular magnet arrangement or coating scratches due to improper handling. Therefore, highly skilled operators are needed for this process, increasing training and management costs. Additionally, existing boxing methods are often limited by the shape and size of the magnets. For irregularly shaped workpieces such as irregularly shaped, tile-shaped, and ring-shaped magnets, traditional boxing methods are difficult to complete the task efficiently and accurately, and may require a special suction mechanism, which greatly reduces the versatility and flexibility of the production line. Utility Model Content

[0006] This invention provides a magnetic attraction device to solve existing technical problems.

[0007] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is as follows:

[0008] A magnetic attraction device includes a mounting plate and a handle connected to the mounting plate. A series of contact plates are connected to the side of the mounting plate away from the handle, and a magnet is placed between the contact plates and the contact plates. The mounting plate has multiple through holes, and the magnet is connected to multiple connecting rods. Each connecting rod passes through a through hole, and a pressure handle is connected to the end away from the magnet. An elastic element is connected between the pressure handle and the mounting plate, causing the pressure handle to tend to move away from the mounting plate, thereby moving the magnet away from the contact plates.

[0009] As a further improvement to the above technical solution:

[0010] Multiple guide rods are provided between the mounting plate and the contact plate, and multiple guide holes are provided on the magnet, with each guide rod movably fitted into the guide hole.

[0011] The elastic element includes multiple springs.

[0012] Each of the springs is mounted on the connecting rod.

[0013] The handle is ring-shaped.

[0014] The mounting plate and the contact plate are connected to a housing, forming a closed space with the housing to accommodate the magnet.

[0015] The spring and connecting rod are covered with rubber sleeves.

[0016] A sponge sleeve is fitted onto the pressure handle.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The device combines a mounting plate, a magnet that moves up and down with the pressure handle, and a structure with a resetting force provided by an elastic element. This allows the magnet to controllably engage and disengage at the contact plate. With reliable guidance from multiple connecting rods and through-holes, the magnet attracts the workpiece magnet when pressed down, and automatically moves away from the contact plate under the action of the elastic element after the pressure handle is released, achieving smooth release. The operator simply needs to press the contact plate onto the workpiece magnet, press down the pressure handle to bring the magnet close to the contact plate for attraction, lift the device for transfer, and finally release the pressure handle to allow the magnet to reset, achieving a neat and scratch-free release. Therefore, this device not only significantly improves boxing efficiency, reducing the processing time per box to 1-3 minutes per person, but is also simple to operate, allowing even beginners to quickly master it. The absence of direct contact with the workpiece magnet during use effectively avoids coating scratches and ensures consistent diffusion. Meanwhile, by utilizing permanent magnet attraction and mechanical spring reset, no external energy consumption is required, and the structure has no requirements on the size and shape of the workpiece. It is suitable for magnets of square, tile-shaped, round, ring and irregular shapes, and has comprehensive advantages such as high efficiency, high consistency, strong versatility and low cost. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the internal structure of the magnetic attraction device when it attracts a workpiece.

[0021] Figure 2 This is a schematic diagram of the internal structure of the magnetic suction device when releasing the workpiece.

[0022] Figure 3 This is a schematic diagram of the external structure of the magnetic adsorption device when it adsorbs a workpiece.

[0023] Figure 4 This is a schematic diagram of the external structure of the magnetic suction device when releasing the workpiece.

[0024] Figure 5This is a top-view diagram of the external structure of the magnetic attraction device.

[0025] Legend:

[0026] 1. Mounting plate; 11. Through hole; 2. Handle; 3. Contact plate; 4. Magnet; 41. Connecting rod; 42. Pressure handle; 43. Guide hole; 5. Elastic element; 6. Guide rod; 7. Housing; 8. Rubber sleeve; 9. Sponge sleeve. Detailed Implementation

[0027] To facilitate understanding of this utility model, the following description will be provided in more comprehensive and detailed manner with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0028] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0029] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0030] Example: Figures 1-5As shown, the magnetic suction device of this embodiment includes a mounting plate 1 and a handle 2 connected to the mounting plate 1. A contact plate 3 is connected to the side of the mounting plate 1 away from the handle 2, and a magnet 4 is placed between the contact plate 3 and the contact plate 3. The mounting plate 1 is provided with a plurality of through holes 11. The magnet 4 is connected to a plurality of connecting rods 41, each connecting rod 41 passing through the through hole 11, and a pressure handle 42 is connected to the end away from the magnet 4. An elastic member 5 is connected between the pressure handle 42 and the mounting plate 1. The elastic member 5 makes the pressure handle 42 tend to move away from the mounting plate 1, so that the magnet 4 moves away from the contact plate 3. The magnetic attraction device in this embodiment, through the combination of a mounting plate 1, a magnet 4 that can move up and down driven by the pressure handle 42, and a reset force provided by an elastic element 5, enables the magnet 4 to achieve controllable attraction and separation at the contact plate 3. With the reliable guidance of multiple connecting rods 41 through the through-hole 11, the magnet 4, when pressed down, approaches the contact plate 3 to generate magnetic force to attract the workpiece magnet. After releasing the pressure handle 42, it automatically moves away from the contact plate 3 under the action of the elastic element 5, achieving smooth release. The operator only needs to press the contact plate 3 onto the workpiece magnet, press down the pressure handle 42 to bring the magnet 4 close to the contact plate 3 to complete the attraction, then lift the device for transfer, and finally release the pressure handle 42 to allow the magnet 4 to reset, thus achieving a neat and scratch-free release. Therefore, this device not only significantly improves boxing efficiency, reducing the processing time per box to 1-3 minutes per person, but is also simple to operate, allowing even beginners to quickly master it; during use, there is no need for direct contact with the workpiece magnet, effectively avoiding coating scratches and ensuring consistent diffusion. Meanwhile, utilizing permanent magnet attraction and mechanical spring reset, it requires no external energy consumption, and its structure has no requirements on the size and shape of the workpiece. It is suitable for magnets of square, tile-shaped, round, ring, and irregular shapes, and has comprehensive advantages such as high efficiency, high consistency, strong versatility, and low cost. Compared with traditional manual tweezers and workpiece disk reversal methods, it can quickly, neatly, and without scratching the workpiece magnets.

[0031] In this embodiment, multiple guide rods 6 are provided between the mounting plate 1 and the contact plate 3, and multiple guide holes 43 are provided on the magnet 4. Each guide rod 6 is movably fitted into the guide hole 43. By providing multiple guide rods 6 between the mounting plate 1 and the contact plate 3, and correspondingly providing multiple guide holes 43 on the magnet 4, the guide rods 6 can move and cooperate within the guide holes 43, thereby precisely guiding the up and down movement of the magnet 4. This structure ensures that the magnet 4 maintains a stable, straight, and non-biased movement trajectory when it is driven by the pressure handle 42 to approach the contact plate 3 or when it is moved away by the elastic element 5, further avoiding scratching or jamming between the magnet 4 and the contact plate 3, making the adsorption and detachment actions smoother and more reliable. This stable guidance makes the operator easier and less prone to misoperation during the entire process of pressing down to adsorb, lifting to transfer, and releasing, thereby maintaining the effect of neatly picking up the workpiece magnet and releasing it without scratching. Overall, this structure further improves the reliability and consistency of the device, helps to improve the boxing efficiency, protect the integrity of the coating, and maintain good adaptability to magnets of different shapes and sizes.

[0032] In this embodiment, the elastic element 5 includes multiple springs. The multiple spring design of the elastic element 5 allows the magnet 4 to obtain a more uniform and stable restoring force after releasing the pressure handle 42, thereby ensuring that the magnet 4 quickly and reliably moves away from the contact plate 3. The arrangement of multiple springs avoids tilting or jamming of the magnet 4 caused by uneven force on a single spring, ensuring that the magnet 4 maintains a smooth linear motion under the cooperation of the guide rod 6 and the guide hole 43. This structure makes the adsorption, transfer, and release actions smoother, improves operational comfort, and ensures that the workpiece magnet falls neatly onto the ceramic plate or stainless steel sheet without scraping during release. At the same time, the multi-spring structure is low-cost and highly reliable, helping to maintain the high efficiency, high consistency, and strong versatility of the equipment.

[0033] In this embodiment, each spring is mounted on the connecting rod 41. This structure ensures that the direction of the spring's force is completely aligned with the direction of movement of the magnet 4, guaranteeing that the reset force acts directly and effectively between the handle 42 and the magnet 4. This makes the up-and-down movement of the magnet 4 more stable and reliable during the adsorption and release process. This layout avoids problems such as tilting or jamming of the magnet 4 caused by spring misalignment or positional deviation, allowing the magnet 4 to maintain smooth linear movement under the guidance of the guide rod 6 and the guide hole 43. This structure makes the entire operation process of pressing for adsorption, lifting for transfer, and releasing smoother, ensuring that the workpiece magnet can be quickly and neatly adsorbed and released without scraping, improving the efficiency and consistency of the boxing operation, while maintaining the advantages of simple structure, low cost, and high reliability of the device.

[0034] In this embodiment, the handle 2 is ring-shaped. The ring shape allows the operator to grip the device more securely and conveniently when performing pressing, lifting, and transferring actions. The ring structure prevents slippage during operation and provides uniform force in different directions, making it particularly suitable for continuous operation processes of "pressing down for adsorption—lifting for transfer—releasing," thereby improving the overall operational flexibility and stability of the machine. Combined with the controlled up-and-down movement of the magnet 4, the ring-shaped handle 2 helps the operator maintain the device's balance, ensuring the adsorbed workpiece magnets remain neat and stable during transfer, further preventing scratches, improving packaging efficiency and consistency, and making the device easier to use and suitable for different scenarios.

[0035] In this embodiment, the mounting plate 1 and the contact plate 3 are connected to a housing 7, forming a closed space to accommodate the magnet 4. This effectively protects the magnet 4 and its mating mechanism from external dust, coating debris, or impurities, ensuring smooth and stable up-and-down movement of the magnet 4 under the guidance of the guide hole 43 and the guide rod 6. The closed space also prevents the magnet 4 from accidentally attracting external metal parts, ensuring that the attraction force acts only on the workpiece magnet itself. This structure improves the reliability of the device throughout the entire process of adsorption, transfer, and release, ensuring that the workpiece magnet is neatly picked up and dropped without scraping, while also enhancing the durability and consistency of the device in different production environments.

[0036] In this embodiment, the spring and connecting rod 41 are covered with rubber sleeves 8. This effectively reduces noise and friction generated by the spring during its extension and retraction, while preventing the spring and connecting rod 41 from being exposed to the external environment and accumulating dust or coating debris, ensuring their smooth return performance over a long period. The rubber sleeves 8 also prevent the connecting rod 41 from coming into metal contact with the housing 7 or other components during its up-and-down movement, further improving the stability and durability of the structure. Combined with the "press-adsorption—lift-transfer—release" operation process, this covering structure makes the movement of the magnet 4 smoother and more stable, reducing vibration and offset, thereby maintaining the neat adsorption of the workpiece magnet and the scratch-free release, improving the consistency and reliability of the packaging process.

[0037] In this embodiment, a sponge sleeve 9 is fitted onto the pressure handle 42. This provides a soft, non-slip feel when the operator presses and holds the pressure handle 42, improving operational comfort and stability. The sponge sleeve 9 effectively distributes hand pressure, reducing fatigue caused by prolonged operation, while also preventing direct contact between the hand and metal parts during operation, reducing the risk of slippage or misoperation. Combined with the "press-adsorption—lift-transfer—release" method, the sponge sleeve 9 helps the operator precisely control the movement of the pressure handle 42, ensuring stable adsorption and release of the workpiece magnet by the magnet 4, guaranteeing neat workpiece arrangement without scratches, and improving boxing efficiency and operational consistency.

Claims

1. A magnetic suction device, comprising a mounting plate (1) and a handle (2) connected to the mounting plate (1), characterized in that, The mounting plate (1) is connected to a contact plate (3) spaced apart on the side away from the handle (2), and a magnet (4) is placed between the mounting plate (1) and the contact plate (3). The mounting plate (1) is provided with multiple through holes (11). The magnet (4) is connected to multiple connecting rods (41). Each connecting rod (41) passes through the through hole (11) and is connected to a pressure handle (42) at the end away from the magnet (4). An elastic element (5) is connected between the pressure handle (42) and the mounting plate (1). The elastic element (5) makes the pressure handle (42) tend to move away from the mounting plate (1) so that the magnet (4) moves away from the contact plate (3).

2. The magnetic attraction device according to claim 1, characterized in that, Multiple guide rods (6) are provided between the mounting plate (1) and the contact plate (3), and multiple guide holes (43) are provided on the magnet (4). Each guide rod (6) is movably fitted into the guide hole (43).

3. The magnetic attraction device according to claim 2, characterized in that, The elastic element (5) includes multiple springs.

4. The magnetic attraction device according to claim 3, characterized in that, Each of the springs is mounted on the connecting rod (41).

5. The magnetic attraction device according to claim 4, characterized in that, The handle (2) is ring-shaped.

6. The magnetic attraction device according to claim 5, characterized in that, The mounting plate (1) is connected to the contact plate (3) by a housing (7), and together with the housing (7), they form a closed space to accommodate the magnet (4).

7. The magnetic attraction device according to claim 6, characterized in that, The spring and connecting rod (41) are covered with rubber sleeves (8).

8. The magnetic attraction device according to claim 7, characterized in that, A sponge sleeve (9) is fitted onto the pressure handle (42).

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