A magnetic core processing surface finishing device and a finishing method thereof

Abstract

The application belongs to the technical field of magnetic core processing, in particular to a magnetic core processing surface finishing device and a finishing method thereof, which comprises a grinding machine; the grinding machine comprises a base; a workbench is installed on the base; a machine box is installed on the base; a grinding wheel is installed in the machine box; a finishing mechanism is installed on the workbench; the finishing mechanism comprises a C-shaped cylinder; two L-shaped plates are fixedly connected to the bottom surface of the C-shaped cylinder; a missing groove is formed in the C-shaped cylinder between the two L-shaped plates; a rotating shaft is rotatably installed on the two L-shaped plates, and a rotating roller is installed on the rotating shaft; the rotating roller is located directly below the missing groove; a feeding bin is fixedly connected to the right half cylinder of the machine box; by setting the finishing mechanism, multiple magnetic cores can be ground in sequence without stopping the machine, so that the steps of grinding the magnetic cores can be simplified, and the grinding efficiency of the magnetic cores can be improved.

Description

Technical Field

[0001] This invention belongs to the field of magnetic core processing technology, specifically a magnetic core processing surface dressing device and its dressing method. Background Technology

[0002] A magnetic core is a sintered magnetic metal oxide composed of various iron oxide mixtures. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical core materials. Manganese-zinc ferrite features high permeability and high magnetic flux density, along with low losses. Nickel-zinc ferrite exhibits extremely high impedance and low permeability (less than a few hundred). Ferrite cores are used in coils and transformers in various electronic devices. The manufacturing process of magnetic cores mainly includes the selection of magnetic materials, forming, sintering, grinding, and packaging.

[0003] Grinding is a key step in the magnetic core manufacturing process. The purpose of grinding is to process and trim the magnetic core so that its size and shape meet product requirements. Precision grinding equipment and tools are required during the grinding process to ensure the accuracy and surface quality of the magnetic core.

[0004] Currently, when finishing the surface of a toroidal magnetic core, the toroidal magnetic core needs to be fixed on a grinding machine, and then ground with a grinding wheel. After each toroidal magnetic core is ground, the machine needs to be stopped, the toroidal magnetic core removed, and a new toroidal magnetic core fixed on the grinding machine for grinding again. This grinding method is not only cumbersome to operate, but also reduces work efficiency. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a magnetic core machining surface dressing device and method.

[0006] This invention, by incorporating a trimming mechanism, allows for the sequential polishing of multiple magnetic cores without shutting down the machine. This simplifies the polishing process and improves polishing efficiency. The specific structure is as follows:

[0007] A magnetic core processing surface finishing device includes a grinding machine; the grinding machine includes a base; a worktable is mounted on the base; a housing is mounted on the base, and the housing has a door; a grinding wheel is installed inside the housing, and the grinding wheel rotates clockwise.

[0008] A trimming mechanism is installed on the workbench; the trimming mechanism includes a C-shaped cylinder with the opening of the C-shaped cylinder facing upwards;

[0009] Two L-shaped plates are fixedly connected to the bottom surface of the C-shaped cylinder, and the other side of each L-shaped plate is mounted on the workbench; a notch is formed between the two L-shaped plates on the C-shaped cylinder, and the notch communicates with the inner cavity of the C-shaped cylinder;

[0010] The inner surface of the C-shaped cylinder is rotatably mounted with evenly arranged balls; the diameter of the C-shaped cavity formed by the evenly arranged balls inside the C-shaped cylinder is the same as the diameter of the magnetic core to be polished.

[0011] After the magnetic core enters the C-shaped cylinder, the top of the magnetic core is above the opening of the C-shaped cylinder, and the bottom of the magnetic core is inside the notch.

[0012] Below the grinding wheel, on the C-shaped cylinder, are two mutually mirror-shaped stabilizing components, which are used to stabilize the magnetic core during grinding.

[0013] A rotating rod is rotatably mounted on both L-shaped plates, and a rotating roller is mounted on the rotating rod; the rotating roller is located directly below the notch.

[0014] One of the L-shaped plates is equipped with a motor, and the motor is connected to the rotating rod via a coupling;

[0015] Both sides of the C-shaped cylinder are provided with circular grooves on the chassis; a half-cylinder is installed in each of the two circular grooves, and the half-cylinder passes through the circular groove; the half-cylinder and the C-shaped cylinder are close to each other;

[0016] A feeding bin is fixedly connected to the half-cylinder on the right side of the machine casing; the feeding bin is V-shaped; an electric telescopic rod is fixedly connected to the end face of the feeding bin away from the half-cylinder; a push plate is fixedly connected to the extension rod of the electric telescopic rod.

[0017] Preferably, both of the stabilizing components include a stabilizing plate;

[0018] The two stabilizing plates are respectively disposed on both sides of the C-shaped cylinder; the end face of the two stabilizing plates facing the inner cavity of the C-shaped cylinder is an arc surface. When the magnetic core enters the C-shaped cylinder, the magnetic core will fit against the arc surface, and the highest point of the magnetic core is higher than the stabilizing plate.

[0019] Two limiting blocks are fixedly connected to the opposite sides of the two stabilizing plates; each limiting block is slidably connected to a sliding rod, and the end of the sliding rod near the C-shaped cylinder is fixedly connected to the C-shaped cylinder.

[0020] Each slide rod is fixedly connected to a disc on the side away from the C-shaped cylinder; a spring is connected between each disc and the limiting block, and the slide rod passes through the spring.

[0021] Preferably, both ends of the stabilizing plates facing the semi-cylinder are arc surfaces;

[0022] Initially, the two stabilizing plates are close to each other, and the spring is in equilibrium.

[0023] Preferably, the top ends of the two stabilizing plates are inclined to opposite sides;

[0024] A liquid tank is provided in a stabilizing plate away from the box door, and a pipe joint is installed in the liquid tank for connecting to external coolant.

[0025] The liquid tank has a liquid channel on the side away from the pipe joint, and a stabilizing plate extends from the other end of the liquid channel.

[0026] Preferably, both L-shaped plates are provided with sliding grooves;

[0027] Each of the two grooves has a sliding plate slidably connected to it; the rotating rod rotates on two opposing sliding plates; the motor is mounted on one of the sliding plates.

[0028] Both of the aforementioned skateboards have springs fixed to their bottoms, and the other side of each spring is connected to an L-shaped plate. The skateboards are in a balanced state under the action of the springs.

[0029] Preferably, both sides of the roller are designed with rounded corners.

[0030] Preferably, the electric telescopic pole is a multi-stage electric telescopic pole.

[0031] Preferably, the L-shaped plate is mounted on the workbench by bolts.

[0032] On the other hand, the present invention also provides a method for surface finishing of magnetic core processing, which is applicable to the above-mentioned finishing device, and the specific finishing method is as follows:

[0033] Step 1: First, the magnetic cores are pushed into the C-shaped cylinder one by one by the pusher. The magnetic cores inside the C-shaped cylinder will gradually move to the position of the rotating roller and the grinding wheel.

[0034] Step 2: When the magnetic core moves to the position of the rotating roller, the counterclockwise rotating roller will drive the magnetic core to rotate clockwise;

[0035] Step 3: When the magnetic core moves to the position of the grinding wheel, the rotating grinding wheel will grind the magnetic core as it passes by. After that, the ground magnetic core will be moved out of the left half-cylinder. Then, the removed magnetic core can be collected.

[0036] The beneficial effects of this invention are as follows:

[0037] 1. The magnetic core processing surface dressing device and method of the present invention, by continuously pushing the magnetic core into the C-shaped cylinder, causes adjacent magnetic cores to push against each other, so that the magnetic cores can pass through the grinding wheel in sequence and be ground. Compared with the existing magnetic core grinding method, it is not necessary to fix the magnetic core before each grinding. At the same time, after one magnetic core is ground, it will be gradually pushed away from the grinding wheel by the next magnetic core, so that the next magnetic core can continue to be ground. Therefore, multiple magnetic cores can be ground in sequence without stopping the machine, which simplifies the steps of grinding magnetic cores and improves the grinding efficiency of magnetic cores.

[0038] 2. The magnetic core processing surface dressing device and method of the present invention, by setting two opposing stabilizing plates, can squeeze and fix the magnetic core again during the grinding process, thereby avoiding the magnetic core from shaking during grinding. At the same time, it can scrape off the magnetic core surface by scraping it off. With the help of flowing coolant, the debris can be discharged. In this process, it can prevent the debris from being located between the magnetic core and the grinding wheel, which would cause the adhered debris to be ground by the grinding wheel again, thereby reducing the grinding effect on the magnetic core itself.

[0039] 3. The magnetic core processing surface dressing device and method of the present invention, when the rotating roller contacts the protrusion on the magnetic core, the roller will move downward under the obstruction of the protrusion on the magnetic core. The downward moving roller will drive the rotating rod and the sliding plate to move downward and compress the spring. When the protrusion on the magnetic core is disengaged from the roller, the roller, rotating rod and sliding plate will return to the initial state under the push of the spring. In this process, if the roller is fixed, the pressure between the roller and the magnetic core will be increased when the roller contacts the protrusion on the magnetic core, thereby avoiding excessive pressure on the magnetic core and damage to the magnetic core. Attached Figure Description

[0040] The invention will now be further described with reference to the accompanying drawings.

[0041] Figure 1 This is a perspective view of the entire invention;

[0042] Figure 2 This is a schematic diagram of the trimming mechanism of the present invention during the polishing of the magnetic core;

[0043] Figure 3 This is a schematic diagram of the trimming mechanism of the present invention in its initial state;

[0044] Figure 4 This is the present invention. Figure 3 Enlarged view of a portion of point A in the middle;

[0045] Figure 5 This is a top view of the present invention;

[0046] Figure 6 This is the present invention. Figure 5 Sectional view at point BB;

[0047] Figure 7 This is the present invention. Figure 6 Enlarged view of a section at point C;

[0048] Figure 8 This is the present invention. Figure 6 Sectional view at point DD;

[0049] Figure 9 This is the present invention. Figure 8 Enlarged view of a section at point E in the middle.

[0050] In the diagram: 1. Base; 11. Workbench; 12. Chassis; 13. Grinding wheel; 14. Magnetic core; 15. Circular groove; 2. C-shaped cylinder; 21. Notched groove; 22. Ball bearing; 23. Half cylinder; 24. Feeding hopper; 25. Electric telescopic rod; 26. Push plate; 3. L-shaped plate; 31. Rotating rod; 32. Rotating roller; 33. Motor; 34. Slide groove; 35. Slide plate; 4. Stabilizing plate; 41. Limiting block; 42. Slide rod; 43. Disc; 44. Liquid tank; 45. Liquid channel; 46. Pipe connector. Detailed Implementation

[0051] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0052] Example 1:

[0053] like Figures 1 to 9 As shown, in one aspect, the present invention discloses a magnetic core processing surface finishing device, including a grinding machine; the grinding machine includes a base 1; a worktable 11 is installed on the base 1; a housing 12 is installed on the base 1, and the housing 12 is provided with a door; a grinding wheel 13 is installed inside the housing 12, and the grinding wheel 13 rotates clockwise;

[0054] A trimming mechanism is installed on the workbench 11; the trimming mechanism includes a C-shaped cylinder 2, with the opening of the C-shaped cylinder 2 facing upwards;

[0055] Two L-shaped plates 3 are fixedly connected to the bottom surface of the C-shaped cylinder 2, and the other side of each L-shaped plate 3 is mounted on the workbench 11; a notch 21 is provided between the two L-shaped plates 3 on the C-shaped cylinder 2, and the notch 21 communicates with the inner cavity of the C-shaped cylinder 2.

[0056] The inner ring surface of the C-shaped cylinder 2 is rotatably mounted with evenly arranged ball bearings 22; the diameter of the C-shaped cavity formed by the evenly arranged ball bearings 22 inside the C-shaped cylinder 2 is the same as the diameter of the magnetic core 14 to be polished.

[0057] After the magnetic core 14 enters the C-shaped cylinder 2, the top of the magnetic core 14 is above the opening of the C-shaped cylinder 2, and the bottom of the magnetic core 14 is inside the notch 21.

[0058] Below the grinding wheel 13, on the C-shaped cylinder 2, there are two mutually mirror-shaped stabilizing components, which are used to stabilize the magnetic core 14 during grinding.

[0059] Two L-shaped plates 3 are rotatably mounted with rotating rods 31, and rotating rollers 32 are mounted on the rotating rods 31; the rotating rollers 32 are located directly below the notch 21.

[0060] One of the L-shaped plates 3 is equipped with a motor 33, and the motor 33 is connected to the rotating rod 31 via a coupling;

[0061] Both sides of the C-shaped cylinder 2 are provided with circular grooves 15 on the casing 12; a half-cylinder 23 is installed in each of the two circular grooves 15, and the half-cylinder 23 passes through the circular groove 15; the half-cylinder 23 and the C-shaped cylinder 2 are close to each other;

[0062] A feeding bin 24 is fixedly connected to the half-cylinder 23 on the right side of the chassis 12; the feeding bin 24 is V-shaped; an electric telescopic rod 25 is fixedly connected to the end face of the feeding bin 24 away from the half-cylinder 23; a push plate 26 is fixedly connected to the extension rod of the electric telescopic rod 25.

[0063] Specifically, when grinding the magnetic core 14, the electric telescopic rod 25, grinding wheel 13, and motor 33 are first controlled to work. When the electric telescopic rod 25 is working, it drives the pusher plate 26 to move back and forth at a constant speed in the feeding bin 24. When the pusher plate 26 moves into the half-cylinder 23, the electric telescopic rod 25 is controlled to retract to its initial state. Then the pusher plate 26 is controlled to move again, and this cycle is repeated. During each retraction of the pusher plate 26, the magnetic core 14 is added to the feeding bin 24 in sequence. Then the extended electric telescopic rod 25 pushes the magnetic core 14 to move through the pusher plate 26. As the number of magnetic cores 14 gradually increases, the magnetic core 14 at the front will be gradually pushed into the C-shaped cylinder 2. The magnetic core 14 entering the C-shaped cylinder 2 will interact with the C-shaped cylinder 2. The inner ball bearings 22 are engaged and pushed to rotate. At this time, the magnetic core 14 is confined in the C-shaped cavity formed by the ball bearings 22. When the grinding wheel 13 is working, the grinding wheel 13 will rotate clockwise. When the motor 33 is working, the motor 33 will drive the rotating roller 32 to rotate counterclockwise through the rotating rod 31. As the pushed magnetic core 14 gradually moves in the C-shaped cylinder 2, the magnetic core 14 will move above the notch 21 and gradually contact the top of the rotating roller 32. When the magnetic core 14 contacts the top of the rotating roller 32, the counterclockwise rotating roller 32 will drive the magnetic core 14 to rotate clockwise. As the magnetic core 14 is continuously pushed into the C-shaped cylinder 2, the magnetic core 14 in contact with the rotating roller 32 will rotate with the rotating roller 32 and move along the rotating roller 32.

[0064] More specifically, when the magnetic core 14 moves below the grinding wheel 13, it rotates clockwise along the ball bearings 22 inside the C-shaped cylinder 2 under the drive of the rotating roller 32. Simultaneously, the grinding wheel 13 also rotates clockwise. Therefore, the rotating grinding wheel 13 can gradually grind and trim the rotating magnetic core 14. As the magnetic core 14 gradually passes under the grinding wheel 13, the grinding wheel 13 can gradually grind the passing magnetic core 14. Under the push of the pusher 26, more magnetic cores 14 are pushed into the C-shaped cylinder 2. More magnetic cores 14 will pass through the rotating roller 32 and the grinding wheel 13 in sequence, so that the passing magnetic cores 14 can be continuously ground. At the same time, when the grinding wheel 13 is grinding the magnetic cores 14, the stabilizing component will further stabilize the magnetic cores 14, thereby preventing the magnetic cores 14 from shaking during the grinding process. When the magnetic cores 14 move to the end of the C-shaped cylinder 2, the magnetic cores 14 will move onto the left half cylinder 23 and then be removed from the left half cylinder 23. The removed magnetic cores 14 can then be collected.

[0065] Furthermore, by continuously pushing the magnetic core 14 into the C-shaped cylinder 2, adjacent magnetic cores 14 push against each other, allowing the magnetic core 14 to pass through the grinding wheel 13 sequentially and be ground. Compared to the existing magnetic core 14 grinding method, it is not necessary to fix the magnetic core 14 before each grinding. At the same time, after one magnetic core 14 is ground, it will be gradually pushed away from the grinding wheel 13 by the next magnetic core 14, so that the next magnetic core 14 can continue to be ground. Therefore, multiple magnetic cores 14 can be ground sequentially without stopping the machine, which simplifies the steps of grinding the magnetic core 14 and improves the grinding efficiency of the magnetic core 14.

[0066] Example 2:

[0067] Both of the aforementioned stabilizing components include a stabilizing plate 4;

[0068] The two stabilizing plates 4 are respectively disposed on both sides of the C-shaped cylinder 2; the end face of the two stabilizing plates 4 facing the inner cavity of the C-shaped cylinder 2 is an arc surface. When the magnetic core 14 enters the C-shaped cylinder 2, the magnetic core 14 will fit against the arc surface, and the highest point of the magnetic core 14 is higher than the stabilizing plate 4.

[0069] Two limiting blocks 41 are fixedly connected to the opposite sides of the two stabilizing plates 4; each limiting block 41 is slidably connected to a sliding rod 42, and the end of the sliding rod 42 near the C-shaped cylinder 2 is fixedly connected to the C-shaped cylinder 2.

[0070] Each slide rod 42 is fixedly connected to a disc 43 on the side away from the C-shaped cylinder 2; each disc 43 and the limiting block 41 are connected by a spring, and each slide rod 42 passes through the spring.

[0071] In this embodiment, the two end faces of the two stabilizing plates 4 facing the half-cylinder 23 are both arc surfaces;

[0072] Initially, the two stabilizing plates 4 are close to each other, and the spring is in equilibrium.

[0073] In this embodiment, the top ends of the two stabilizing plates 4 are tilted to opposite sides;

[0074] A liquid tank 44 is provided in a stabilizing plate 4 away from the box door, and a pipe joint 46 is installed in the liquid tank 44. The pipe joint 46 is used to connect to external coolant.

[0075] The liquid tank 44 has a liquid channel 45 on the side away from the pipe joint 46, and a stabilizing plate 4 extends from the other end of the liquid channel 45.

[0076] Specifically, since the stabilizing plates 4 are initially close to each other, when the magnetic core 14 gradually approaches the grinding wheel 13, the magnetic core 14 will first contact the arc surfaces on both sides of the stabilizing plate 4. As the magnetic core 14 continues to move, it will push the two stabilizing plates 4 away from each other. The stabilizing plates 4 moving away from each other will drive the limiting block 41 to move towards the side of the disc 43 on the slide rod 42 and squeeze the spring. When the magnetic core 14 moves between the two stabilizing plates 4, the arc surface of the stabilizing plate 4 close to the magnetic core 14 will fit against the magnetic core 14. When the magnetic core 14 rotates, it will rotate along the opposite arc surfaces of the stabilizing plate 4. At this time, the stabilizing plate 4 can further fix the magnetic core 14, thereby preventing the rotating magnetic core 14 from shaking.

[0077] More specifically, during the polishing process of the magnetic core 14, external coolant is introduced into the pipe joint 46. The coolant entering the pipe joint 46 first enters the liquid tank 44, and then the coolant in the liquid tank 44 is sprayed out through the liquid channel 45. The coolant is sprayed between the polishing wheel 13 and the magnetic core 14, thereby cooling the polished magnetic core 14 and preventing the magnetic core 14 from overheating and sintering. Since the polishing wheel 13 rotates clockwise, the debris polished off by the polishing wheel 13 is pushed onto another stabilizing plate 4. Meanwhile, the rotating grinding wheel 13 also drives the coolant to flow onto the stabilizing plate 4 on the other side. The flowing coolant also pushes the debris to move, thus transferring the debris to the stabilizing plate 4 on the other side. Since the top end face of the stabilizing plate 4 is inclined, the flowing coolant will carry the debris down from the stabilizing plate 4. In this process, it can prevent the debris from adhering to the surface of the magnetic core 14 and being ground again by the grinding wheel 13. At the same time, it can also prevent the debris from falling into the C-shaped cylinder 2, thus affecting the flow of the magnetic core 14.

[0078] Furthermore, by setting two opposing stabilizing plates 4, the magnetic core 14 can be squeezed and fixed again during the grinding process, thereby preventing the magnetic core 14 from shaking during grinding. At the same time, the surface of the magnetic core 14 can be scraped to remove the debris adhering to the surface of the magnetic core 14. With the help of flowing coolant, the debris can be discharged. During this process, it can be prevented that the debris is located between the magnetic core 14 and the grinding wheel 13, which would cause the adhering debris to be ground again by the grinding wheel 13, thereby reducing the grinding effect on the magnetic core 14 itself.

[0079] Example 3:

[0080] Both L-shaped plates 3 are provided with sliding grooves 34;

[0081] Each of the two slide grooves 34 has a sliding plate 35 slidably connected to it; the rotating rod 31 rotates on the two opposing sliding plates 35; the motor 33 is mounted on one of the sliding plates 35.

[0082] Both of the slide plates 35 are fixedly connected to the bottom with springs, and the other side of each spring is connected to the L-shaped plate 3. The slide plates 35 are in a balanced state under the action of the springs.

[0083] In this embodiment, both sides of the rotating roller 32 are rounded.

[0084] Specifically, since the rotating roller 32 rotates on the sliding plate 35 via the rotating rod 31, and the sliding plate 35 is in a balanced state under the action of the spring, and due to the rounded corner design on both sides of the rotating roller 32, when the magnetic core 14 gradually moves above the rotating roller 32, if there are burrs or protrusions on the surface of the magnetic core 14, the protrusions on the magnetic core 14 will move along the rounded corners of the rotating roller 32 and gradually fit into the rotating roller 32, thereby avoiding the situation where the magnetic core 14 cannot move above the rotating roller 32 if the rotating roller 32 is not chamfered;

[0085] More specifically, when the rotating roller 32 contacts the protrusion on the magnetic core 14, the roller 32 will move downwards due to the obstruction of the protrusion on the magnetic core 14. The downward-moving roller 32 will drive the rotating rod 31 and the sliding plate 35 to move downwards and compress the spring. When the protrusion on the magnetic core 14 is disengaged from the roller 32, the roller 32, the rotating rod 31, and the sliding plate 35 will return to their initial state under the push of the spring. In this process, if the roller 32 is fixed, the pressure between the roller 32 and the magnetic core 14 will be increased when the roller 32 contacts the protrusion on the magnetic core 14, thus avoiding excessive pressure on the magnetic core 14 and damage to the magnetic core 14.

[0086] Example 4:

[0087] The electric telescopic rod 25 is a multi-stage electric telescopic rod 25;

[0088] In this embodiment, the L-shaped plate 3 is mounted on the workbench 11 by bolts;

[0089] Specifically, since the electric telescopic rod 25 is a multi-stage telescopic rod, after all the magnetic cores 14 that need to be ground have been pushed into the C-shaped cylinder 2, the electric telescopic rod 25 is further extended. The extended electric telescopic rod 25 will drive the pusher plate 26 to gradually extend into the C-shaped cylinder 2, thereby continuing to push the magnetic cores 14 in the C-shaped cylinder 2 to move. At this time, the magnetic cores 14 in the C-shaped cylinder 2 will pass under the grinding wheel 13 in sequence. After the last magnetic core 14 passes under the grinding wheel 13, the electric telescopic rod 25 is retracted to the initial state. In this process, it can be avoided that when no new magnetic cores 14 are pushed into the G-shaped cylinder, some magnetic cores 14 will not be able to pass under the grinding wheel 13 and be ground.

[0090] More specifically, since the L-shaped plate 3 is bolted to the worktable 11, when it is necessary to grind magnetic cores 14 of different diameters, the dressing mechanism can be directly removed and replaced with a dressing mechanism that matches the diameter of the magnetic core 14 to be ground. At the same time, if it is not necessary to grind the magnetic core 14, the dressing mechanism can be directly removed and used as a grinder.

[0091] On the other hand, the present invention also provides a method for surface finishing of magnetic core processing, which is applicable to the above-mentioned finishing device, and the specific finishing method is as follows:

[0092] Step 1: First, the magnetic cores 14 are pushed into the C-shaped cylinder 2 one by one by the pusher plate 26. The magnetic cores 14 that enter the C-shaped cylinder 2 will gradually move to the position of the rotating roller 32 and the grinding wheel 13.

[0093] Step 2: When the magnetic core 14 moves to the position of the rotating roller 32, the counterclockwise rotating roller 32 will drive the magnetic core 14 to rotate clockwise;

[0094] Step 3: When the magnetic core 14 moves to the position of the grinding wheel 13, the rotating grinding wheel 13 will grind the magnetic core 14 that passes by. Then the ground magnetic core 14 will be moved out from the left half cylinder 23. The removed magnetic core 14 can then be collected.

[0095] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic core processing surface finishing device, comprising a grinding machine; the grinding machine comprising a base (1); a worktable (11) mounted on the base (1); a housing (12) mounted on the base (1), and the housing (12) having a door; a grinding wheel (13) mounted inside the housing (12), and the grinding wheel (13) rotating clockwise; Its features are, A trimming mechanism is installed on the workbench (11); the trimming mechanism includes a C-shaped cylinder (2), and the opening of the C-shaped cylinder (2) faces upward; Two L-shaped plates (3) are fixedly connected to the bottom surface of the C-shaped cylinder (2), and the other side of each L-shaped plate (3) is mounted on the workbench (11); a notch (21) is provided between the two L-shaped plates (3) on the C-shaped cylinder (2), and the notch (21) communicates with the inner cavity of the C-shaped cylinder (2); The inner ring surface of the C-shaped cylinder (2) is rotatably mounted with evenly arranged balls (22); the diameter of the C-shaped cavity formed by the evenly arranged balls (22) inside the C-shaped cylinder (2) is the same as the diameter of the magnetic core (14) to be polished; When the magnetic core (14) enters the C-shaped cylinder (2), the top of the magnetic core (14) is above the opening of the C-shaped cylinder (2), and the bottom of the magnetic core (14) is inside the notch (21); Below the grinding wheel (13), two mirror-image stabilizing components are installed on the C-shaped cylinder (2), and the stabilizing components are used to stabilize the magnetic core (14) during grinding; Two L-shaped plates (3) are rotatably mounted with rotating rods (31), and rotating rollers (32) are mounted on the rotating rods (31); the rotating rollers (32) are located directly below the notch (21); One of the L-shaped plates (3) is equipped with a motor (33), and the motor (33) is connected to the rotating rod (31) via a coupling; Both sides of the C-shaped cylinder (2) are provided with circular grooves (15) on the casing (12); a half-cylinder (23) is installed in each of the two circular grooves (15), and the half-cylinder (23) passes through the circular groove (15); the half-cylinder (23) and the C-shaped cylinder (2) are close to each other; A feeding bin (24) is fixedly connected to the half cylinder (23) on the right side of the chassis (12); the feeding bin (24) is V-shaped; an electric telescopic rod (25) is fixedly connected to the end face of the feeding bin (24) away from the half cylinder (23); a push plate (26) is fixedly connected to the extension rod of the electric telescopic rod (25).

2. The magnetic core processing surface trimming device according to claim 1, characterized in that: Both of the stabilizing components include a stabilizing plate (4); The two stabilizing plates (4) are respectively located on both sides of the C-shaped cylinder (2); the end face of the two stabilizing plates (4) facing the inner cavity of the C-shaped cylinder (2) is an arc surface. When the magnetic core (14) enters the C-shaped cylinder (2), the magnetic core (14) will fit against the arc surface, and the highest point of the magnetic core (14) is higher than the stabilizing plate (4). Two limiting blocks (41) are fixedly connected to the opposite side of the two stabilizing plates (4); each limiting block (41) is slidably connected to a sliding rod (42), and the end of the sliding rod (42) near the C-shaped cylinder (2) is fixedly connected to the C-shaped cylinder (2); Each slide rod (42) is fixedly connected to a disc (43) on the side away from the C-shaped cylinder (2); each disc (43) and the limiting block (41) are connected by a spring, and the slide rod (42) passes through the spring.

3. The magnetic core processing surface trimming device according to claim 2, characterized in that: Both of the two stabilizing plates (4) have curved surfaces facing the two ends of the half cylinder (23); in the initial state, the two stabilizing plates (4) are close to each other and the spring is in a balanced state.

4. The magnetic core processing surface trimming device according to claim 3, characterized in that: The top ends of the two stabilizing plates (4) are tilted to opposite sides; A liquid tank (44) is provided in a stabilizing plate (4) away from the box door, and a pipe joint (46) is installed in the liquid tank (44) for connecting to external coolant; The liquid tank (44) has a liquid channel (45) on the side away from the pipe joint (46), and a stabilizing plate (4) extends from the other end of the liquid channel (45).

5. The magnetic core processing surface finishing device according to claim 4, characterized in that: Both L-shaped plates (3) are provided with sliding grooves (34); Slide plates (35) are slidably connected in both of the slide grooves (34); the rotating rods (31) rotate on the two opposing slide plates (35); the motor (33) is mounted on one of the slide plates (35); Both of the two slide plates (35) are fixed to the bottom with springs, and the other side of the springs is connected to the L-shaped plate (3), and the slide plates (35) are in a balanced state under the action of the springs.

6. The magnetic core processing surface finishing device according to claim 5, characterized in that: Both sides of the roller (32) are rounded.

7. The magnetic core processing surface trimming device according to claim 6, characterized in that: The electric telescopic pole (25) is a multi-stage electric telescopic pole (25).

8. The magnetic core processing surface finishing device according to claim 7, characterized in that: The L-shaped plate (3) is mounted on the workbench (11) by bolts.

9. A method for surface finishing of magnetic core processing, characterized in that: This method is applicable to the trimming apparatus according to any one of claims 1-8, and the specific trimming method is as follows: Step 1: First, the magnetic cores (14) are pushed into the C-shaped cylinder (2) one by one by the pusher plate (26). The magnetic cores (14) that enter the C-shaped cylinder (2) will gradually move to the position of the rotating roller (32) and the grinding wheel (13); Step 2: When the magnetic core (14) moves to the position of the rotating roller (32), the counterclockwise rotating roller (32) will drive the magnetic core (14) to rotate clockwise; Step 3: When the magnetic core (14) moves to the position of the grinding wheel (13), the rotating grinding wheel (13) will grind the magnetic core (14) that passes by. Then the ground magnetic core (14) will be moved out from the left half cylinder (23). Then the removed magnetic core (14) can be collected.

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