Grinding device for inner surface and outer surface of arc-shaped plate

Abstract

The invention discloses an arc-shaped plate inner and outer face grinding device, and belongs to the technical field of grinding. The device comprises a machine body, and an outer surface grinding mechanism and an inner surface grinding mechanism are installed on the machine body. The outer surface grinding mechanism is provided with a rotatable mounting wheel, a slidable outer grinding wheel is arranged on one side of the mounting wheel, a plurality of first fixing grooves used for fixing the arc-shaped plates are formed in the surface of the mounting wheel, and it is ensured that the outer surfaces of the arc-shaped plates are ground on the same circular face. The inner surface grinding mechanism comprises a rotatable mounting sleeve, and inner grooves and corresponding second fixing grooves are formed in the mounting sleeve, correspond to the first fixing grooves one to one and are used for fixing the arc-shaped plates. And the mounting sleeve can be sleeved outside the mounting wheel to form a complete arc-shaped groove, so that the arc-shaped plate can be flexibly switched between the inner and outer surface grinding mechanisms. And meanwhile, electromagnetic adsorption devices are arranged in the first fixing groove and the second fixing groove, it is ensured that the arc-shaped plate is stable and does not move in the polishing process, and damage is effectively prevented.

Description

Technical Field

[0001] This invention relates to the field of polishing technology, and more specifically to a polishing device for the inner and outer surfaces of an arc-shaped plate. Background Technology

[0002] In the field of motor manufacturing, the curved magnetic plate is a key component inside the motor, and its quality and performance directly affect the motor's operating efficiency and stability. To meet the high requirements of motors for curved magnetic plates, both the inner and outer surfaces of the plate require meticulous grinding. Traditional grinding methods are typically done manually, which is not only inefficient but also makes it difficult to guarantee grinding quality, thus failing to meet the needs of large-scale production.

[0003] To overcome the shortcomings of traditional grinding methods, some automated grinding equipment has emerged on the market. However, these devices often can only grind one side of curved magnetic plates, unable to grind the inner and outer surfaces simultaneously or separately. This not only increases operational complexity but also limits the applicability of the equipment. Therefore, there is an urgent need for a grinding device for the inner and outer surfaces of curved plates that can solve the above problems. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a grinding device for the inner and outer surfaces of an arc-shaped plate, capable of grinding the inner and outer circular plates of the arc-shaped plate separately.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a grinding device for the inner and outer surfaces of an arc plate, including a machine body, on which an outer surface grinding mechanism and an inner surface grinding mechanism are installed.

[0006] The outer surface polishing mechanism includes a rotatable mounting wheel, an outer polishing wheel on one side of the mounting wheel, the outer polishing wheel being able to slide toward the mounting wheel, and a plurality of first fixing grooves for mounting the arc-shaped plates on the mounting wheel. When the arc-shaped plates are fixed inside the first fixing grooves, the outer surfaces of the plurality of arc-shaped plates are on the same circular surface.

[0007] The inner surface polishing mechanism includes a rotatable mounting sleeve that is positioned above and movable toward the mounting wheel.

[0008] The mounting sleeve has an inner groove inside, and several second fixing grooves for fixing the arc-shaped plate are opened on the inner wall of the inner groove. The second fixing grooves correspond one-to-one with the first fixing grooves. A support plate is fixed above the mounting wheel, and an inner grinding wheel that moves along a circular track is rotatably mounted on the support plate.

[0009] The mounting sleeve can be fitted onto the outside of the mounting wheel. When the mounting sleeve is located outside the mounting wheel, the first fixing groove and the corresponding second fixing groove can form an arc groove for mounting the arc plate. The inner surface of the arc plate is attached to the first fixing groove, and the outer surface of the arc plate is attached to the second fixing groove. Both the first fixing groove and the second fixing groove are provided with adsorption devices for fixing the arc plate.

[0010] Preferably, the mounting wheel is rotatably mounted on the surface of the machine body, and a vertical rod is fixed to the middle of the mounting wheel, with the upper end of the vertical rod fixedly connected to the support plate.

[0011] Preferably, a plurality of connecting columns are slidably inserted inside the support plate. The lower end of the connecting column passes through the lower end of the support plate and is fixedly connected to the mounting sleeve. The upper end of the connecting column passes through the upper end surface of the support plate and is connected to the top plate. A hydraulic cylinder for driving the top plate to move is fixed inside the upright.

[0012] Preferably, there are multiple connecting columns, and the support plate has multiple through holes corresponding to the connecting columns, and the connecting columns are slidably installed in the through holes.

[0013] Preferably, a slider is slidably mounted on the surface of the machine body, the outer grinding wheel is rotatably mounted on the slider, a motor for driving the outer grinding wheel to rotate is fixed on the slider, and an oil cylinder for driving the slider to slide is fixed inside the machine body.

[0014] Preferably, a rotating ring is rotatably mounted inside the support plate, and a first gear is meshed with one side of the rotating ring. The inner grinding wheel is fixed on the rotating shaft, and a second gear is rotatably mounted inside the rotating ring at one end of the rotating shaft. A toothed plate is fixed inside the support plate, and the toothed plate has teeth. The second gear meshes with the teeth on the toothed plate.

[0015] Preferably, a housing is fixed to the machine body, and a motor for driving the mounting wheels to rotate is fixed inside the machine body.

[0016] Preferably, electromagnetic plates are fixed inside the mounting wheel and the mounting sleeve, located inside the first and second fixing grooves. When the arc-shaped plate is installed inside the first and second fixing grooves, the electromagnetic plates inside the first and second fixing grooves contact the arc-shaped plate.

[0017] The beneficial effects of this invention are as follows: The invention features separate outer and inner surface grinding mechanisms, enabling targeted grinding of the inner and outer surfaces of the arc-shaped magnetic plate. The design of the mounting wheel and mounting sleeve allows for easy switching between the two mechanisms, thus achieving separate grinding of the inner and outer surfaces of the arc-shaped magnetic plate. Simultaneously, the electromagnetic plate's adsorption effect firmly secures the arc-shaped magnetic plate, preventing displacement or damage during grinding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a connection diagram of the mounting wheel, mounting sleeve, and support plate of the present invention.

[0020] Figure 3 This is a plan view of the connection between the mounting wheel and the mounting sleeve in this invention.

[0021] Figure 4 This is a cross-sectional view of the mounting wheel of the present invention.

[0022] Figure 5 This is a cross-sectional view of the mounting sleeve of the present invention.

[0023] Figure 6 This is an internal sectional view of the body, mounting wheels, and mounting sleeve of the present invention.

[0024] Figure 7 For the present invention Figure 6 Enlarged view of point A in the image.

[0025] In the diagram: 1. Body, 2. Mounting wheel, 201. First fixing groove, 3. Mounting sleeve, 301. Inner groove, 302. Second fixing groove, 4. Outer grinding wheel, 5. Support plate, 6. Top plate, 7. Connecting column, 8. Vertical rod, 9. Slider, 10. Inner grinding wheel, 11. Rotary ring, 12. First gear, 13. Gear plate, 14. Second gear, 15. Electromagnetic plate. Detailed Implementation

[0026] The present invention is illustrated below with specific embodiments, but these are not intended to limit the invention.

[0027] Example 1 like Figures 1-7As shown in this embodiment, a grinding device for the inner and outer surfaces of an arc-shaped plate is provided, including a body 1. An outer surface grinding mechanism and an inner surface grinding mechanism are mounted on the body 1. The arc-shaped magnetic plate mentioned in this embodiment is a magnetic plate assembly specifically designed for the interior of a motor. Before magnetization, these magnetic plates exist in the form of arc-shaped metal plates. To ensure the stability and efficiency of motor operation, both the inner and outer surfaces of these metal plates need to undergo fine grinding. Specifically, the outer surfaces of all arc-shaped magnetic plates used inside the same motor are located on the same circular surface, and the inner surfaces are also located on another corresponding circular surface. This design ensures the uniform distribution of the magnetic field inside the motor and the effective transmission of magnetic force. The inner surface grinding mechanism is specifically used to grind the inner arc surface of the arc-shaped magnetic plate, ensuring that the smoothness and finish of the inner surface meet the requirements. The outer surface grinding mechanism is responsible for grinding the outer arc surface of the arc-shaped magnetic plate, also requiring a certain level of smoothness and finish. The coordinated operation of these two grinding mechanisms ensures that the inner and outer surfaces of each curved magnetic plate are uniformly ground, thus meeting the high quality requirements of the motor for the magnetic plates.

[0028] The outer surface polishing mechanism includes a rotatable mounting wheel 2, with an outer polishing wheel 4 on one side of the mounting wheel 2. The outer polishing wheel 4 can slide towards the mounting wheel 2 and is securely mounted at a specific position on the machine body 1, possessing the ability to move horizontally on the surface of the machine body 1. This allows the outer polishing wheel 4 to flexibly adjust its position. Specifically, the outer polishing wheel 4 has at least two working positions. In the first position, it is close to the mounting wheel 2, where the outer polishing wheel 4 is in close contact with the arc-shaped plate on the mounting wheel 2, performing polishing operations. This ensures that the polishing wheel can directly act on the outer arc surface of the arc-shaped plate, achieving an efficient polishing effect. In the second position, the outer polishing wheel 4 is away from the mounting wheel 2, leaving a certain space between it and the mounting wheel 2. Through the horizontal movement of the outer polishing wheel 4 on the surface of the machine body 1 and the flexible switching between different positions, we can achieve comprehensive and uniform polishing of the outer arc surface of the arc-shaped plate. The mounting wheel 2 has multiple first fixing grooves 201 for mounting the curved plates. When the curved plates are fixed inside the first fixing grooves 201, the outer surfaces of the multiple curved plates are on the same circular surface, and the curved plates match the first fixing grooves 201, allowing them to be precisely embedded inside the first fixing grooves 201 and achieve a stable engagement. When the outer grinding wheel 4 moves to a position close to the mounting wheel 2, its grinding surface is precisely in contact with the circular trajectory of the outer surface of the curved plate. At this time, through the rotational movement of the grinding wheel and the synchronous rotation of the curved plates driven by the mounting wheel 2, the two work together to achieve comprehensive and uniform grinding of the outer surface of the curved plates.

[0029] The inner surface grinding mechanism includes a rotatable mounting sleeve 3, which rotates synchronously with the mounting wheel 2. The mounting sleeve 3 is positioned above the mounting wheel 2 and can move toward the mounting wheel 2.

[0030] The mounting sleeve 3 has an inner groove 301 inside, and several second fixing grooves 302 for fixing the arc-shaped plate are formed on the inner wall of the inner groove 301. The second fixing grooves 302 correspond one-to-one with the first fixing grooves 201. The mounting sleeve 3 and the mounting wheel 2 are designed to move only in the axial direction, while remaining relatively stationary in the circumferential direction, that is, they cannot rotate relative to each other. Specifically, the first fixing groove 201 on the mounting wheel 2 and the second fixing groove 302 on the mounting sleeve 3 always maintain a corresponding positional relationship. Both fixing grooves penetrate through the two end faces of their respective components, allowing the arc-shaped plate to be easily inserted into the first fixing groove 201 from the outside and to move smoothly from the first fixing groove 201 to the second fixing groove 302. A support plate 5 is fixed above the mounting wheel 2, and an inner grinding wheel 10 that moves along a circular track is rotatably mounted on the support plate 5. The support plate 5 serves to support the inner grinding wheel 10 and the mounting sleeve 3. The mounting sleeve 3 is designed to move along a circular track on the support plate 5, while the inner grinding wheel 10 rotates on its own axis while moving in a circular motion with the support plate 5. The purpose of the rotation of the inner grinding wheel 10 is to effectively grind the inner surface of the curved plate. By moving along the circular track, the inner grinding wheel 10 can pass over the surfaces of multiple curved plates sequentially, thereby achieving comprehensive grinding of the inner surfaces of multiple curved plates.

[0031] The mounting sleeve 3 can be fitted onto the outside of the mounting wheel 2. When the mounting sleeve 3 is located outside the mounting wheel 2, the first fixing groove 201 and the corresponding second fixing groove 302 can form an arc-shaped groove for mounting the arc-shaped plate. The inner surface of the arc-shaped plate is attached to the first fixing groove 201, and the outer surface of the arc-shaped plate is attached to the second fixing groove 302. A part of the arc-shaped plate is embedded in the first fixing groove 201, and another part is embedded in the second fixing groove 302. Both the first fixing groove 201 and the second fixing groove 302 are equipped with adsorption devices for fixing the arc-shaped plate. Both the first fixing groove 201 and the second fixing groove 302 are equipped with adsorption devices that can be started and stopped. When the adsorption device in the first fixing groove 201 is started and the adsorption device in the second fixing groove 302 is stopped, it will adsorb the arc-shaped plate, so that when the mounting wheel 2 is separated from the mounting sleeve 3, the arc-shaped plate will remain in the first fixing groove 201. Similarly, when the adsorption device in the second fixed groove 302 is activated and the adsorption device in the first fixed groove 201 is stopped, it will also adsorb the arc plate, ensuring that the arc plate will remain inside the second fixed groove 302 when the mounting wheel 2 is separated from the mounting sleeve 3.

[0032] A housing is fixed on the body 1, and a motor for driving the mounting wheel 2 to rotate is fixed inside the body 1. This motor can drive the mounting wheel 2 on the body 1 to rotate.

[0033] A slider 9 is slidably mounted on the surface of the machine body 1. An outer grinding wheel 4 is rotatably mounted on the slider 9. A motor that drives the outer grinding wheel 4 to rotate is fixed on the slider 9. An oil cylinder for driving the slider 9 to slide is fixed inside the machine body 1. The extension and retraction of the output end of the oil cylinder can drive the slider 9 to move inside the machine body 1. The motor inside the slider 9 can drive the outer grinding wheel 4 to rotate.

[0034] Example 2 like Figures 1-7 As shown, based on Embodiment 1, this embodiment provides a connection method between the support plate 5 and the mounting sleeve 3, as detailed below: Mounting wheel 2 is rotatably mounted on the surface of body 1. A vertical rod 8 is fixed in the middle of mounting wheel 2. The upper end of vertical rod 8 is fixedly connected to support plate 5. Mounting wheel 2 is designed to rotate freely on the surface of body 1. Vertical rod 8 is installed in the center of mounting wheel 2. When mounting wheel 2 rotates, it can drive vertical rod 8 and support plate 5 connected to it to perform circular motion together.

[0035] Multiple connecting posts 7 are slidably inserted inside the support plate 5. The lower end of the connecting post 7 passes through the lower end of the support plate 5 and is fixedly connected to the mounting sleeve 3. The upper end of the connecting post 7 passes through the upper surface of the support plate 5 and is connected to the top plate 6. A hydraulic cylinder for driving the movement of the top plate 6 is fixed inside the upright 8, allowing the connecting posts 7 to slide inside the support plate 5, thereby adjusting the height of the mounting sleeve 3. The hydraulic cylinder is responsible for driving the movement of the top plate 6. Through the extension and retraction of the hydraulic cylinder, the up and down movement of the top plate 6 and the connected connecting posts 7 and mounting sleeve 3 can be precisely controlled.

[0036] There are multiple connecting columns 7. The support plate 5 has multiple through holes that correspond one-to-one with the connecting columns 7. The connecting columns 7 are slidably installed in the through holes. Multiple connecting columns 7 are used to support the mounting sleeve 3 and the top plate 6. They are installed between the two to ensure that the mounting sleeve 3 and the top plate 6 can be linked, thereby ensuring that they can move synchronously.

[0037] Example 3 like Figures 1-7 As shown, based on Embodiment 1 and Embodiment 2, this embodiment provides the internal structure of the mounting wheel 2 and the mounting sleeve 3, as detailed below: A rotating ring 11 is rotatably mounted inside the support plate 5. A first gear 12 is meshed with one side of the rotating ring 11. An inner grinding wheel 10 is fixed on a rotating shaft. A motor for driving the first gear 12 is fixed inside the support plate 5. Driven by this motor, the first gear 12 can rotate freely, driving the rotating ring 11 to rotate inside the support plate 5. When the rotating ring 11 rotates, the inner grinding wheel 10 mounted on the rotating ring 11 also performs a circular motion. A second gear 14 is rotatably mounted inside the rotating ring 11 and fixed at one end of the rotating shaft. A toothed plate 13 is fixed inside the support plate 5, with teeth on it. The second gear 14 meshes with the teeth on the toothed plate 13. Driven by the toothed ring, the inner grinding wheel 10 moves, and the second gear 14 connected to it meshes with the teeth on the toothed plate 13. This meshing not only causes the second gear 14 to rotate but also drives the inner grinding wheel 10 to rotate itself.

[0038] Electromagnetic plates 15 are fixed inside the mounting wheels 2 and mounting sleeves 3, located inside the first fixing groove 201 and the second fixing groove 302. When the arc-shaped plate is installed inside the first fixing groove 201 and the second fixing groove 302, the electromagnetic plates 15 inside the first fixing groove 201 and the second fixing groove 302 come into contact with the arc-shaped plate. The electromagnetic plate 15 is a special plate that generates magnetism once energized. Its working principle is based on electromagnetic induction: when current passes through the electromagnetic plate 15, a magnetic field is generated around it, thereby making the electromagnetic plate 15 magnetic and able to generate attraction. The electromagnetic plate 15 is a component disclosed in the prior art and is not the problem to be solved by this invention, so this invention will not elaborate on it. This attraction is significant and can attract other metal components, such as the arc-shaped plate. In specific applications, the electromagnetic plate 15 is installed in a specific fixing groove. When the electromagnetic plate 15 in the first fixing groove 201 is energized and generates attraction, the arc-shaped plate will be attracted to the mounting wheel 2; while when the electromagnetic plate 15 in the second fixing groove 302 is energized and generates attraction, the arc-shaped plate will be attracted to the mounting sleeve 3. This design allows the position of the arc-shaped plate to be flexibly changed. Furthermore, when the arc-shaped plate is attracted to the mounting wheel 2, it is convenient to grind the outer circle of the arc-shaped plate; while when the arc-shaped plate is attracted to the mounting sleeve 3, the inner circle of the arc-shaped plate can be ground.

[0039] Working principle: In the initial state setting of this invention, the mounting sleeve 3 is located above the mounting wheel 2 and maintains a certain distance. The operation process is as follows: First, the electromagnetic plate 15 inside the mounting wheel 2 is energized to generate magnetism. Then, the arc-shaped plates are placed one by one into the first fixing groove 201 of the mounting wheel 2. By rotating the mounting wheel 2, the arc-shaped plates rotate on the machine body 1, facilitating adjustment to the desired position. At this time, the outer grinding wheel 4 is used to finely grind the outer circle of the arc-shaped plates.

[0040] After the grinding operation is completed, the mounting sleeve 3 is moved downwards until it fits onto the outside of the mounting wheel 2. At this point, the inner and outer sides of the arc-shaped plate are respectively located in the first fixing groove 201 and the second fixing groove 302. Next, the power supply to the electromagnetic plate 15 inside the mounting wheel 2 is disconnected, causing it to lose its magnetism and thus release its attraction to the arc-shaped plate. Immediately afterwards, the electromagnetic plate 15 inside the mounting sleeve 3 is energized, causing it to generate magnetism and attract the arc-shaped plate.

[0041] Then, the mounting sleeve 3 is moved upwards until it is outside the inner grinding wheel 10. At this point, the inner circle of the arc-shaped plate is ground using the inner grinding wheel 10.

[0042] After all the grinding work is completed, disconnect the power supply to the electromagnetic plate 15 inside the mounting sleeve 3, and the curved plate can be easily removed. At this point, the grinding of the inner and outer circles of the curved plate is complete.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A grinding device for the inner and outer surfaces of an arc-shaped plate, comprising a body (1), characterized in that, The machine body (1) is equipped with an outer surface polishing mechanism and an inner surface polishing mechanism; The outer surface polishing mechanism includes a rotatable mounting wheel (2), an outer polishing wheel (4) on one side of the mounting wheel (2), the outer polishing wheel (4) being able to slide toward the mounting wheel (2), and the mounting wheel (2) having multiple first fixing grooves (201) for mounting the arc plate. When the arc plate is fixed inside the first fixing groove (201), the outer surfaces of the multiple arc plates are on the same circular surface. The inner surface polishing mechanism includes a rotatable mounting sleeve (3), which is positioned above the mounting wheel (2) and is movable toward the mounting wheel (2); The mounting sleeve (3) has an inner groove (301) inside. The inner wall of the inner groove (301) has several second fixing grooves (302) for fixing the arc plate. The second fixing grooves (302) and the first fixing grooves (201) correspond one-to-one. A support plate (5) is fixed above the mounting wheel (2). An inner grinding wheel (10) that moves along a circular track is rotatably mounted on the support plate (5). The mounting sleeve (3) can be fitted onto the outside of the mounting wheel (2). When the mounting sleeve (3) is located outside the mounting wheel (2), the first fixing groove (201) and the corresponding second fixing groove (302) can form an arc groove for mounting the arc plate. The inner surface of the arc plate is attached to the first fixing groove (201), and the outer surface of the arc plate is attached to the second fixing groove (302). The first fixing groove (201) and the second fixing groove (302) are both provided with adsorption devices for fixing the arc plate.

2. The grinding device for the inner and outer surfaces of an arc-shaped plate according to claim 1, characterized in that, The mounting wheel (2) is rotatably mounted on the surface of the machine body (1). A vertical rod (8) is fixed in the middle of the mounting wheel (2). The upper end of the vertical rod (8) is fixedly connected to the support plate (5).

3. The grinding device for the inner and outer surfaces of an arc-shaped plate according to claim 2, characterized in that, Multiple connecting columns (7) are slidably inserted inside the support plate (5). The lower end of the connecting column (7) passes through the lower end of the support plate (5) and is fixedly connected to the mounting sleeve (3). The upper end of the connecting column (7) passes through the upper end face of the support plate (5) and is connected to the top plate (6). An oil cylinder for driving the top plate (6) to move is fixed inside the upright (8).

4. The grinding device for the inner and outer surfaces of an arc-shaped plate according to claim 3, characterized in that, The number of connecting columns (7) is multiple, and the support plate (5) has multiple through holes corresponding to the connecting columns (7) one by one. The connecting columns (7) are slidably installed in the through holes.

5. The grinding device for the inner and outer surfaces of an arc-shaped plate according to claim 1, characterized in that, A slider (9) is slidably mounted on the surface of the machine body (1), and an outer grinding wheel (4) is rotatably mounted on the slider (9). A motor for driving the outer grinding wheel (4) to rotate is fixed on the slider (9), and an oil cylinder for driving the slider (9) to slide is fixed inside the machine body (1).

6. The grinding device for the inner and outer surfaces of an arc-shaped plate according to claim 1, characterized in that, The support plate (5) has a rotating ring (11) rotatably mounted inside. A first gear (12) is meshed with one side of the rotating ring (11). The inner grinding wheel (10) is fixed on the rotating shaft. One end of the rotating shaft is rotatably mounted inside the rotating ring (11) and a second gear (14) is fixed thereon. A toothed plate (13) is fixed inside the support plate (5). The toothed plate (13) has teeth. The second gear (14) meshes with the teeth on the toothed plate (13).

7. The grinding device for the inner and outer surfaces of an arc-shaped plate according to claim 1, characterized in that, The body (1) is fixed with a shell, and the body (1) is fixed with a motor for driving the mounting wheel (2) to rotate.

8. The grinding device for the inner and outer surfaces of an arc-shaped plate according to claim 1, characterized in that, Electromagnetic plates (15) are fixed inside the mounting wheel (2) and the mounting sleeve (3) on the inner side of the first fixing groove (201) and the second fixing groove (302). When the arc plate is installed inside the first fixing groove (201) and the second fixing groove (302), the electromagnetic plates (15) inside the first fixing groove (201) and the second fixing groove (302) are in contact with the arc plate.

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