Sintered neodymium-iron-boron material

Abstract

The utility model discloses a sintered neodymium iron boron grinding discharging resistance device, include: baffle, be opposite in the both sides of grinding machine outlet, with the baffle corresponds, and be located the top place of baffle, with the baffle corresponds, and be located the outside of baffle, padstone, with the baffle corresponds, and be located the inside of baffle, and be locked by main valve with adjusting valve, through being equipped with the baffle in the both sides of grinding machine outlet, drive main valve makes padstone move, drive adjusting valve again makes padstone move and adjusts interval, so that the magnetic steel discharges when passing between two baffle, again discharges through two padstone between, thereby convenient proper increase the friction of magnetic steel discharging, so that the magnetic steel discharges when speed stability, movement direction stability, discharging even, simultaneously do not affect discharging efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sintered NdFeB processing technology, and in particular to a discharge resistance device for sintered NdFeB milling. Background Technology

[0002] Sintered NdFeB magnets, as a high-performance permanent magnet material, have been widely used in motors, sensors, medical devices, and other fields since their invention. Their excellent magnetic properties and good cost-effectiveness make them stand out among many permanent magnet materials. In practical applications, the surface of sintered NdFeB components needs to be smooth and reach a certain precision; raw magnet blanks require surface grinding. Grinding is a crucial process in the production of sintered NdFeB permanent magnets.

[0003] During the grinding process, the magnet passes through the high-speed rotating grinding wheel. The speed at the discharge port is unstable and the direction of movement is not fixed, which can easily cause defects such as missing corners and scraped edges, increasing the defect rate of the product and raising the production cost. This application is provided to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art where magnets pass through a high-speed rotating grinding wheel, resulting in unstable speed and inconsistent movement direction at the discharge port, which easily leads to corner defects and edge damage. Therefore, this invention proposes a discharge resistance device for sintered NdFeB grinding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a discharge resistance device for sintered NdFeB grinding, comprising: baffles, arranged in pairs on both sides of the discharge port of the grinding machine; a main valve, corresponding to the baffles and located above the baffles; a regulating valve, corresponding to the baffles and located outside the baffles; and a pad, corresponding to the baffles and located inside the baffles, and locked by the main valve and the regulating valve.

[0006] As described above, by providing baffles on both sides of the grinding machine's discharge port, driving the main valve to move the pad, and then driving the regulating valve to move the pad to adjust the spacing, the magnet passes between the two baffles and then between the two pads during discharge. This facilitates an appropriate increase in the friction force of the magnet during discharge, resulting in stable speed, stable movement direction, and uniform discharge, without affecting the discharge efficiency.

[0007] Furthermore, a disc is provided on the outer side of the baffle, and the regulating valve is threadedly connected to the outer side of the baffle through the disc and cooperates with the side of the pad. Rectangular plates are provided at both ends of the disc, and a bolt is provided in the middle of the rectangular plate. A screw hole is provided on the outer side of the baffle, and the bolt is adapted to the screw hole.

[0008] Furthermore, the main valve is threaded above the baffle and mates with the top of the pad.

[0009] Furthermore, the inner side of the baffle is provided with a groove, and the pad is located in the groove, which is connected to the main valve and the disc.

[0010] Furthermore, the pad is elastic and is made of rubber or PE material.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The discharge resistance device for NdFeB grinding in this utility model has a simple, reasonable structure and is easy to implement. By providing baffles on both sides of the discharge port of the grinding machine, the main valve is driven to move the pads, and then the regulating valve is driven to move the pads to adjust the spacing. This allows the magnet to pass between the two baffles and be appropriately clamped by the two pads during discharge. Through the buffering and squeezing effect of the two pads on the magnet, the movement of the magnet along the non-discharge direction can be eliminated, ensuring that the movement direction of the magnet during discharge is stable and the discharge is uniform, while not affecting the discharge efficiency, thereby avoiding phenomena such as missing corners and scraped edges of the magnet. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the cross-sectional structure of the present invention; Figure 3 This is a top view of the structure of this utility model.

[0013] The markings in the diagram are: 1. Baffle, 2. Main valve, 3. Regulating valve, 4. Pad, 5. Groove, 6. Disc, 7. Rectangular plate, 8. Bolt, 9. Screw hole. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0017] Reference Figures 1 to 3 This embodiment provides a discharge resistance device for sintered NdFeB grinding, comprising: baffles 1, arranged in pairs on both sides of the discharge port of the grinding machine; a main valve 2, corresponding to the baffles 1 and located above the baffles 1; a regulating valve 3, corresponding to the baffles 1 and located outside the baffles 1; and a pad 4, corresponding to the baffles 1 and located inside the baffles 1, and locked by the main valve 2 and the regulating valve 3.

[0018] By adopting the above technical solution, baffles 1 are provided on both sides of the discharge port of the grinding machine. The main valve 2 is adjusted to make the pad 4 move, and the regulating valve 3 is adjusted to move the pad 4 to adjust the spacing. When the magnet is discharged, it passes between the two baffles 1 and is then appropriately clamped by the two pads 4 for discharge. This facilitates the appropriate increase of the friction force of the magnet discharge, so that the magnet discharge speed is stable, the movement direction is stable, and the discharge is uniform, without affecting the discharge efficiency.

[0019] In some embodiments, a disc 6 is provided on the outer side of the baffle 1, and the regulating valve 3 is threadedly connected to the outer side of the baffle 1 through the disc 6 and cooperates with the side of the pad 4. Rectangular plates 7 are provided at both ends of the disc 6, and bolts 8 are provided in the middle of the rectangular plates 7. Screw holes 9 are provided on the outer side of the baffle 1, and the bolts 8 and screw holes 9 are adapted to each other.

[0020] By adopting the above technical solution, the disc 6 facilitates the threaded installation of the regulating valve 3 on the outer side of the baffle 1; rotating the regulating valve 3 facilitates the movement of the pad 4 on the inner side of the baffle 1, thereby facilitating the adjustment of the distance between the two pads 4; rotating the bolt 8 disengages it from the screw hole 9, causing the rectangular plate 7 to loosen outside the baffle 1, thus facilitating the removal of the disc 6 from the outside of the baffle 1, and facilitating the removal and replacement of the pad 4 from the inside of the baffle 1, as well as facilitating the installation of a new pad 4 from the outside of the baffle 1; thus solving the problem of the pad 4 becoming worn and inconvenient to replace after long-term use.

[0021] In some embodiments, the main valve 2 is threaded above the baffle 1 and engages with the top of the pad 4.

[0022] By adopting the above technical solution, opening the two main valves 2 facilitates the loosening of the two pads 4 on the inner side of the two baffles 1, thereby facilitating the movement of the two pads 4 on the inner side of the two baffles 1.

[0023] In some embodiments, the inner side of the baffle 1 is provided with a groove 5, and the pad 4 is located in the groove 5. The groove 5 is connected to the main valve 2 and the disc 6.

[0024] By adopting the above technical solution, the groove 5 facilitates the stable placement of the pad 4 on the inner side of the baffle 1, and the groove 5 facilitates the main valve 2 and the disc 6 to limit the pad 4, thereby preventing the pad 4 from shifting on the inner side of the baffle 1, and thus facilitating the relative movement of the two pads 4 on the inner sides of the two baffles 1.

[0025] In some embodiments, the pad 4 is elastic and is made of rubber or PE material.

[0026] By adopting the above technical solution, the elastic effect of the pad 4 can facilitate the slowing down of the movement speed of the magnet between the two baffles 1 and fix the movement direction.

[0027] Working Principle: Before the grinding machine starts operation, adjust the position of the pad 4 according to the required size of the magnet to be ground. First, open the main valve 2, and then control the position of the pad 4 by adjusting the regulating valve 3, so that the pad 4 can apply a certain pressure to the magnet during grinding. After the position of the pad 4 is adjusted, tighten the main valve 2 to firmly fix the pad 4. Then, when the grinding machine is working, the magnet's speed is unstable and its direction of movement is not fixed after being ground by the high-speed rotating grinding wheel. When the magnet enters the resistance device through the guide rail, the elasticity of the pad 4 can slow down the magnet's movement speed and fix its direction of movement. This not only makes the magnet output uniform and does not affect the output efficiency, but also avoids phenomena such as missing corners and scraping edges of the magnet.

[0028] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A sintered neodymium-iron-boron material for a workpiece material removal resistance device, characterized in that include: Baffles (1) are arranged in pairs on both sides of the discharge port of the grinding machine; The main valve (2) is opposite to the baffle (1) and is located above the baffle (1); A regulating valve (3) is provided on the outside of the baffle (1), corresponding to the baffle (1); The pad (4) corresponds to the baffle (1) and is located inside the baffle (1), and is locked by the main valve (2) and the regulating valve (3).

2. The discharge resistance device for sintered NdFeB milling according to claim 1, characterized in that, The outer side of the baffle (1) is provided with a disc (6), the regulating valve (3) is threadedly connected to the outer side of the baffle (1) through the disc (6) and cooperates with the side of the pad (4). The two ends of the disc (6) are provided with rectangular plates (7), the middle of the rectangular plate (7) is provided with a bolt (8), the outer side of the baffle (1) is provided with a screw hole (9), and the bolt (8) is adapted to the screw hole (9).

3. The discharge resistance device for sintered NdFeB milling according to claim 2, characterized in that, The main valve (2) is threaded above the baffle (1) and engages with the top of the pad (4).

4. The discharge resistance device for sintered NdFeB milling according to claim 3, characterized in that, The inner side of the baffle (1) is provided with a groove (5), and the pad (4) is located in the groove (5). The groove (5) is connected to the main valve (2) and the disc (6).

5. The discharge resistance device for sintered NdFeB milling according to claim 4, characterized in that, The pad (4) is elastic and is made of rubber or PE material.

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