Magnetic core processing surface finishing device and finishing method thereof

Abstract

The invention belongs to the technical field of magnetic core machining, and particularly relates to a magnetic core machining surface finishing device and a finishing method thereof. The grinding machine comprises a base. A workbench is mounted on the base; a case is mounted on the base; a polishing wheel is mounted in the case; a trimming mechanism is mounted on the workbench; the trimming mechanism comprises a C-shaped cylinder; two L-shaped plates are fixedly connected to the bottom surface of the C-shaped cylinder; a notch is formed in the position, located on the C-shaped cylinder, between the two L-shaped plates. A rotating rod is rotationally mounted on the two L-shaped plates jointly, and a rotating roller is mounted on the rotating rod; the rotating roller is located under the notch. A feeding bin is fixedly connected to the half cylinder on the right side of the machine box. According to the magnetic core polishing device, the trimming mechanism is arranged, the multiple magnetic cores can be polished in sequence under the non-stop condition, and therefore the magnetic core polishing step can be simplified, and meanwhile the magnetic core polishing efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of magnetic core processing, in particular to a magnetic core processing surface finishing device and a finishing method thereof. Background Art

[0002] A magnetic core refers to a sintered magnetic metal oxide composed of a mixture of various iron oxides. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. Manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density, and has the characteristics of low loss. Nickel-zinc ferrite has extremely high resistivity and low magnetic permeability of less than a few hundred. Ferrite cores are used in coils and transformers of various electronic devices; the production process of magnetic cores mainly includes the selection, molding, sintering, grinding and packaging of magnetic materials;

[0003] Among them, grinding is a key link in the magnetic core production process; the purpose of grinding is to process and trim the magnetic core so that its size and shape meet the 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 trimming the surface of an annular magnetic core, the annular magnetic core needs to be fixed on a grinder and then ground with a grinding wheel; after each annular magnetic core is ground, the machine needs to be stopped first, the annular magnetic core is then removed, and a new annular magnetic core is fixed on the grinder and ground again. This grinding method is not only cumbersome to operate, but also reduces work efficiency. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a magnetic core surface finishing device and a finishing method thereof.

[0006] The present invention can grind multiple magnetic cores in sequence without stopping the machine by setting a trimming mechanism, thereby simplifying the steps of grinding the magnetic cores and improving the grinding efficiency of the magnetic cores. The specific structure is as follows:

[0007] A magnetic core processing surface finishing device 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, and a machine box door is provided on the machine box; a grinding wheel is installed in the machine box, and the grinding wheel rotates clockwise;

[0008] A trimming mechanism is installed on the workbench; the trimming mechanism comprises a C-shaped cylinder, and the opening of the C-shaped cylinder faces upward;

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

[0010] The inner ring 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 in the C-shaped cylinder is the same as the diameter of the magnetic core to be polished;

[0011] When the magnetic core enters the C-shaped tube, the top of the magnetic core is located above the opening of the C-shaped tube, and the bottom of the magnetic core is located in the missing groove;

[0012] Two mutually mirrored stabilizing components are installed on the C-shaped cylinder below the grinding wheel, and the stabilizing components are used to stabilize the magnetic core during grinding;

[0013] A rotating rod is installed on the two L-shaped plates for common rotation, and a rotating roller is installed on the rotating rod; the rotating roller is located directly below the notch;

[0014] A motor is mounted on one of the L-shaped plates, and the motor is connected to the rotating rod via a coupling;

[0015] The C-shaped plate has circular grooves on both sides of the chassis; half cylinders are installed in the two circular grooves, and the half cylinders penetrate the circular grooves; the half cylinders and the C-shaped cylinders are close to each other;

[0016] A loading bin is fixedly connected to the half cylinder on the right side of the chassis; the loading bin is V-shaped; an electric telescopic rod is fixedly connected to the end surface of the loading 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 assemblies include a stabilizing plate;

[0018] The two stabilizing plates are respectively arranged on both sides of the C-shaped cylinder; the end surfaces of the two stabilizing plates facing the inner cavity of the C-shaped cylinder are arc surfaces, and when the magnetic core enters the C-shaped cylinder, the magnetic core will fit with 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; a sliding rod is slidably connected in each limiting block, and one end of the sliding rod close to the C-shaped tube is fixedly connected to the C-shaped tube;

[0020] A disc is fixedly connected to one side of the slide bar away from the C-shaped cylinder; a spring is connected between each of the discs and the limit block, and the slide bar passes through the spring.

[0021] Preferably, both side end surfaces of the two stabilizing plates facing the semi-tube are arc surfaces;

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

[0023] Preferably, the top end surfaces of the two stabilizing plates are inclined toward 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, and the pipe joint is used to connect the external coolant;

[0025] A liquid channel is provided on one side of the liquid tank away from the pipe joint, and a stabilizing plate extends out from the other end of the liquid channel.

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

[0027] Slide plates are slidably connected in the two slide grooves; the rotating rods rotate on two opposite slide plates; the motor is installed on one of the slide plates;

[0028] The bottoms of the two slides are both fixedly connected with springs, and the other sides of the springs are both connected to the L-shaped plates, and the slides 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 rod is a multi-stage electric telescopic rod.

[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 finishing the surface of a magnetic core, which is applicable to the above-mentioned finishing device. The specific finishing method is:

[0033] Step 1: First, push the magnetic cores into the C-type cylinder one by one through the push plate. The magnetic cores entering the C-type cylinder will gradually move to the position of the roller and the grinding wheel;

[0034] Step 2: When the magnetic core moves to the position of the 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 passing magnetic core, and then the polished magnetic core will be moved out from the left half cylinder, and then the moved magnetic core can be collected.

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

[0037] 1. The present invention discloses a magnetic core surface finishing device and a finishing method thereof. By continuously pushing the magnetic cores into the C-shaped cylinder, adjacent magnetic cores push each other, so that the magnetic cores can pass through the grinding wheel and be polished in turn. Compared with the existing magnetic core polishing method, there is no need to fix the magnetic core before each polishing. At the same time, when one magnetic core is polished, it will be gradually pushed away from the grinding wheel by the next magnetic core, so that the next magnetic core will continue to be polished. Therefore, multiple magnetic cores can be polished in turn without stopping the machine, thereby simplifying the steps of polishing the magnetic cores and improving the polishing efficiency of the magnetic cores.

[0038] 2. The device and method for finishing the surface of a magnetic core processing described in the present invention can squeeze and fix the magnetic core again during the grinding process of the magnetic core by setting two relative stabilizing plates, thereby preventing the grinding of the magnetic core from shaking. At the same time, the surface of the magnetic core can be scraped to remove debris adhering to the surface of the magnetic core, and the debris can be discharged with the help of flowing coolant. In this process, it can be avoided that the debris is located between the magnetic core and the grinding wheel, causing the adhering debris to be ground by the grinding wheel again, thereby reducing the grinding effect of the magnetic core itself.

[0039] 3. A magnetic core processing surface finishing device and a finishing method thereof described in 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, and the downward moving roller will drive the rotating rod and the slide plate to move downward and compress the spring. When the protrusion on the magnetic core is offset from the roller, the roller, the rotating rod and the slide plate return to their initial state under the push of the spring. In this process, it can be avoided that if the roller is fixed, when the roller contacts the protrusion on the magnetic core, the pressure between the roller and the magnetic core will increase, thereby preventing the magnetic core from being subjected to excessive pressure and being crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described below in conjunction with the accompanying drawings.

[0041] Figure 1 It is a stereogram of the present invention as a whole;

[0042] Figure 2 is a schematic diagram of the trimming mechanism of the present invention when grinding a magnetic core;

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

[0044] Figure 4 The present invention Figure 3 A partial enlarged view of the middle part;

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

[0046] Figure 6 The present invention Figure 5 Sectional view at the middle BB;

[0047] Figure 7 The present invention Figure 6 A partial enlarged view of point C in the middle;

[0048] Figure 8 The present invention Figure 6 Sectional view at DD in the middle;

[0049] Fig. 9 The present invention Figure 8 A partial enlarged view of point E in the middle.

[0050] In the figure: 1. base; 11. workbench; 12. chassis; 13. grinding wheel; 14. magnetic core; 15. round groove; 2. C-type cylinder; 21. missing groove; 22. ball bearing; 23. half cylinder; 24. loading bin; 25. electric telescopic rod; 26. push plate; 3. L-type plate; 31. rotating rod; 32. rotating roller; 33. motor; 34. slide; 35. slide plate; 4. stabilizing plate; 41. limit block; 42. slide rod; 43. disc; 44. liquid tank; 45. liquid channel; 46. pipe joint. DETAILED DESCRIPTION

[0051] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0052] Embodiment 1:

[0053] like Figures 1 to 9 As shown, on the one hand, the present invention discloses a magnetic core processing surface finishing device, comprising a grinding machine; the grinding machine comprises a base 1; a workbench 11 is installed on the base 1; a chassis 12 is installed on the base 1, and a cabinet door is provided on the cabinet 12; a grinding wheel 13 is installed in the cabinet 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, and the opening of the C-shaped cylinder 2 faces upward;

[0055] Two L-shaped plates 3 are fixedly connected to the bottom surface of the C-shaped cylinder 2, and the other sides of the L-shaped plates 3 are mounted on the workbench 11; a notch 21 is opened on the C-shaped cylinder 2 between the two L-shaped plates 3, and the notch 21 is connected to 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 balls 22; the diameter of the C-shaped cavity formed by the evenly arranged balls 22 in the C-shaped cylinder 2 is the same as the diameter of the magnetic core 14 to be polished;

[0057] When the magnetic core 14 enters the C-shaped cylinder 2, the top of the magnetic core 14 is located above the opening of the C-shaped cylinder 2, and the bottom of the magnetic core 14 is located in the notch 21;

[0058] Two mutually mirrored stabilizing components are installed on the C-shaped cylinder 2 below the grinding wheel 13, and the stabilizing components are used to stabilize the magnetic core 14 during grinding;

[0059] A rotating rod 31 is mounted on the two L-shaped plates 3 for common rotation, and a rotating roller 32 is mounted on the rotating rod 31; the rotating roller 32 is located directly below the notch 21;

[0060] A motor 33 is installed on one of the L-shaped plates 3, and the motor 33 is connected to the rotating rod 31 through a coupling;

[0061] The C-shaped plate is provided with circular grooves 15 on both sides of the chassis 12; a half cylinder 23 is installed in each of the two circular grooves 15, and the half cylinder 23 penetrates the circular grooves 15; the half cylinder 23 and the C-shaped cylinder 2 are close to each other;

[0062] A loading bin 24 is fixedly connected to the half cylinder 23 on the right side of the chassis 12; the loading bin 24 is V-shaped; an electric telescopic rod 25 is fixedly connected to the end surface of the loading 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 the magnetic core 14 is polished, the electric telescopic rod 25, the grinding wheel 13 and the motor 33 are first controlled to work. When the electric telescopic rod 25 is working, it will drive the push plate 26 to move back and forth in the upper bin 24 at a uniform speed. When the push plate 26 moves into the half cylinder 23, the electric telescopic rod 25 is controlled to retract to the initial state, and then the push plate 26 is controlled to move again, and this cycle is repeated. During each contraction of the push plate 26, the magnetic core 14 is added to the upper bin 24 in turn, and then the extended electric telescopic rod 25 will push the magnetic core 14 to move through the push plate 26. As the number of magnetic cores 14 gradually increases, the magnetic core 14 located in the front will gradually be pushed into the C-shaped cylinder 2, and the magnetic core 14 entering the C-shaped cylinder 2 will contact the C-shaped cylinder 2. The balls 22 inside the roller 32 fit in and push the balls 22 to rotate. At this time, the magnetic core 14 will be limited in the C-shaped cavity surrounded by the balls 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 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 with the top of the roller 32. When the magnetic core 14 contacts the top of the 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 roller 32 will follow the roller 32 while rotating and move along the roller 32.

[0064] More specifically, when the magnetic core 14 moves to the bottom of the grinding wheel 13, the magnetic core 14 rotates clockwise along the ball 22 in the C-shaped cylinder 2 under the drive of the roller 32, and the grinding wheel 13 also rotates clockwise, so 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 push plate 26, more magnetic cores 14 will be pushed into the C-shaped cylinder 2, so More magnetic cores 14 will pass through the 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 core 14, the stabilizing component will further stabilize the magnetic core 14, so as to prevent the magnetic core 14 from shaking during the grinding process. When the magnetic core 14 moves to the end of the C-shaped cylinder 2, the magnetic core 14 will move to the left half cylinder 23, and then move out of the left half cylinder 23, and then collect the moved magnetic cores 14;

[0065] Furthermore, by continuously pushing the magnetic core 14 into the C-shaped cylinder 2, adjacent magnetic cores 14 push each other, so that the magnetic cores 14 can pass through the grinding wheel 13 and be polished in turn. Compared with the existing magnetic core 14 polishing method, there is no need to fix the magnetic core 14 before each polishing. At the same time, when one magnetic core 14 is polished, it will be gradually pushed away from the grinding wheel 13 by the next magnetic core 14, so that the next magnetic core 14 will continue to be polished. Therefore, multiple magnetic cores 14 can be polished in turn without stopping the machine, thereby simplifying the steps of polishing the magnetic core 14 and improving the polishing efficiency of the magnetic core 14.

[0066] Embodiment 2:

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

[0068] The two stabilizing plates 4 are respectively arranged on both sides of the C-shaped cylinder 2; the end surfaces of the two stabilizing plates 4 facing the inner cavity of the C-shaped cylinder 2 are arc surfaces, and when the magnetic core 14 enters the C-shaped cylinder 2, the magnetic core 14 will fit with 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; a sliding rod 42 is slidably connected in each limiting block 41, and one end of the sliding rod 42 close to the C-shaped cylinder 2 is fixedly connected to the C-shaped cylinder 2;

[0070] The slide rod 42 is fixedly connected with a disc 43 on one side away from the C-shaped cylinder 2; a spring is connected between each disc 43 and the limit block 41, and the slide rod 42 passes through the spring;

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

[0072] In the initial state, the two stabilizing plates 4 are close to each other and the spring is in a balanced state;

[0073] In this embodiment, the top end surfaces of the two stabilizing plates 4 are inclined toward opposite sides;

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

[0075] A liquid channel 45 is formed on one side of the liquid tank 44 away from the pipe joint 46, and the other end of the liquid channel 45 extends out of the stabilizing plate 4;

[0076] Specifically, since the stabilizing plates 4 are close to each other in the initial state, 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 plates 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 limit block 41 to move toward the side of the disk 43 on the slide bar 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 on the magnetic core 14. When the magnetic core 14 rotates, it will rotate along the relative arc surface 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 process of grinding the magnetic core 14, the external coolant is introduced into the pipe joint 46, and the coolant entering the pipe joint 46 will first enter the liquid tank 44, and then the coolant in the liquid tank 44 will be sprayed out through the liquid channel 45, and the coolant will be sprayed between the grinding wheel 13 and the magnetic core 14, so that the ground magnetic core 14 can be cooled down to avoid the magnetic core 14 from being sintered due to excessive temperature. Since the grinding wheel 13 rotates clockwise, the debris ground by the grinding wheel 13 will be pushed onto another stabilizing plate 4. At the same time, the rotating grinding wheel 13 will also drive the coolant to flow to the stabilizing plate 4 on the other side. The flowing coolant will also push the debris to move, so that the debris can be transferred to the stabilizing plate 4 on the other side. Since the top end surface of the stabilizing plate 4 is an inclined surface, the flowing coolant will drive the debris to flow down from the stabilizing plate 4. In this process, it can be prevented that the polished debris will adhere to the surface of the magnetic core 14 and be polished again by the grinding wheel 13. At the same time, it can also be prevented that the debris falls into the C-shaped cylinder 2, thereby affecting the flow of the magnetic core 14.

[0078] Furthermore, by setting up two relative stabilizing plates 4, the magnetic core 14 can be squeezed and fixed again during the grinding process of the magnetic core 14, so as to avoid the shaking of the magnetic core 14 during the grinding. At the same time, the surface of the magnetic core 14 can be scraped to scrape off the debris adhering to the surface of the magnetic core 14, and the debris can be discharged with the help of flowing coolant. In this process, the debris can be prevented from being located between the magnetic core 14 and the grinding wheel 13, causing the adhering debris to be ground again by the grinding wheel 13, thereby reducing the grinding effect of the magnetic core 14 itself.

[0079] Embodiment three:

[0080] The two L-shaped plates 3 are provided with a slide groove 34;

[0081] The two slide grooves 34 are both slidably connected with a slide plate 35; the rotating rod 31 rotates on two opposite slide plates 35; the motor 33 is installed on one of the slide plates 35;

[0082] The bottom of the two slide plates 35 are both fixed with springs, and the other side of the springs are both connected to the L-shaped plate 3, and 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 roller 32 is rotated on the slide plate 35 through the rotating rod 31, and the slide plate 35 is in a balanced state under the action of the spring, and since the rounded corners on both sides of the roller 32 are designed, when the magnetic core 14 gradually moves to the top of the 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 roller 32 and gradually fit with the roller 32, thereby avoiding the situation that the magnetic core 14 cannot move to the top of the roller 32 if the 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 downward due to the obstruction of the protrusion on the magnetic core 14, and the downward moving roller 32 will drive the rotating rod 31 and the sliding plate 35 to move downward and compress the spring. When the protrusion on the magnetic core 14 is offset from the roller 32, the roller 32, the rotating rod 31 and the sliding plate 35 return to their initial state under the push of the spring. In this process, it can be avoided that if the roller 32 is fixed, when the roller 32 contacts the protrusion on the magnetic core 14, the pressure between the roller 32 and the magnetic core 14 will increase, thereby preventing the magnetic core 14 from being subjected to excessive pressure and causing the magnetic core 14 to be crushed.

[0086] Embodiment 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, when all the magnetic cores 14 that need to be polished are pushed into the C-type cylinder 2, the electric telescopic rod 25 is continued to be controlled to extend, and the extended electric telescopic rod 25 will drive the push plate 26 to gradually extend into the C-type cylinder 2, thereby continuing to push the magnetic cores 14 in the C-type cylinder 2 to move. At this time, the magnetic cores 14 in the C-type cylinder 2 will pass under the grinding wheel 13 in turn. When the last magnetic core 14 passes under the grinding wheel 13, the electric telescopic rod 25 is controlled to retract to the initial state. In this process, it can be avoided that when no new magnetic core 14 is pushed into the G-type cylinder, some magnetic cores 14 cannot pass through the grinding wheel 13 to be polished;

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

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

[0092] Step 1: First, the magnetic core 14 is pushed into the C-shaped cylinder 2 one by one by the push plate 26, and the magnetic core 14 entering the C-shaped cylinder 2 will gradually move to the position of the roller 32 and the grinding wheel 13;

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

[0094] Step three: When the magnetic core 14 moves to the position of the grinding wheel 13, the rotating grinding wheel 13 will grind the passing magnetic core 14, and then the grinded magnetic core 14 will be moved out from the left half cylinder 23, and then the moved magnetic core 14 can be collected.

[0095] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A magnetic core processing surface finishing device, comprising a grinding machine; the grinding machine comprises a base (1); a workbench (11) is mounted on the base (1); a case (12) is mounted on the base (1), and a case door is provided on the case (12); a grinding wheel (13) is mounted in the case (12), and the grinding wheel (13) rotates clockwise; It is characterized in that A trimming mechanism is installed on the workbench (11); the trimming mechanism comprises 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 sides of the L-shaped plates (3) are mounted on a workbench (11); a notch (21) is provided on the C-shaped cylinder (2) between the two L-shaped plates (3), and the notch (21) is communicated 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) in 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 interior of the C-shaped cylinder (2), the top of the magnetic core (14) is located above the opening of the C-shaped cylinder (2), and the bottom of the magnetic core (14) is located in the notch (21); Two mutually mirrored stabilizing components are installed on the C-shaped cylinder (2) below the grinding wheel (13), and the stabilizing components are used to stabilize the magnetic core (14) during grinding; A rotating rod (31) is mounted on the two L-shaped plates (3) for common rotation, and a rotating roller (32) is mounted on the rotating rod (31); the rotating roller (32) is located directly below the notch (21); A motor (33) is installed on one of the L-shaped plates (3), and the motor (33) is connected to the rotating rod (31) via a coupling; Circular grooves (15) are provided on both sides of the C-shaped plate and on the chassis (12); half cylinders (23) are installed in the two circular grooves (15), and the half cylinders (23) penetrate the circular grooves (15); the half cylinders (23) and the C-shaped cylinder (2) are close to each other; A loading bin (24) is fixedly connected to the half cylinder (23) on the right side of the chassis (12); the loading bin (24) is V-shaped; an electric telescopic rod (25) is fixedly connected to the end surface of the loading bin (24) away from the half cylinder (23); and a push plate (26) is fixedly connected to the extension rod of the electric telescopic rod (25).

2. A magnetic core surface finishing device according to claim 1, characterized in that: Both of the stabilizing assemblies include a stabilizing plate (4); The two stabilizing plates (4) are respectively arranged on both sides of the C-shaped cylinder (2); the end surfaces of the two stabilizing plates (4) facing the inner cavity of the C-shaped cylinder (2) are arc surfaces, and when the magnetic core (14) enters the C-shaped cylinder (2), the magnetic core (14) will fit with 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 opposite sides of the two stabilizing plates (4); a sliding rod (42) is slidably connected inside each limiting block (41), and one end of the sliding rod (42) close to the C-shaped cylinder (2) is fixedly connected to the C-shaped cylinder (2); The side of the slide rod (42) away from the C-shaped cylinder (2) is fixedly connected with a disc (43); a spring is connected between each of the discs (43) and the limit block (41), and the slide rod (42) passes through the spring.

3. A magnetic core surface finishing device according to claim 1, characterized in that: Both side end surfaces of the two stabilizing plates (4) facing the semi-tube (23) are arc surfaces; In the initial state, the two stabilizing plates (4) are close to each other, and the spring is in a balanced state.

4. A magnetic core surface finishing device according to claim 3, characterized in that: The top end surfaces of the two stabilizing plates (4) are inclined toward 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), and the pipe joint (46) is used to connect external cooling liquid; A liquid channel (45) is provided on one side of the liquid tank (44) away from the pipe joint (46), and the other end of the liquid channel (45) extends out of the stabilizing plate (4).

5. A magnetic core surface finishing device according to claim 4, characterized in that: The two L-shaped plates (3) are both provided with a slide groove (34); The two slide grooves (34) are both slidably connected with a slide plate (35); the rotating rod (31) rotates on two opposite slide plates (35); the motor (33) is installed on one of the slide plates (35); The bottoms of the two slide plates (35) are both fixedly connected with springs, and the other sides of the springs are both connected to the L-shaped plate (3), and the slide plates (35) are in a balanced state under the action of the springs.

6. A magnetic core surface finishing device according to claim 5, characterized in that: Both sides of the rotating roller (32) are designed with rounded corners.

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

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

9. A method for finishing the surface of a magnetic core, characterized in that: The method is applicable to the trimming device according to any one of claims 1 to 8, and the specific trimming method is: Step 1: First, the magnetic core (14) is pushed into the C-shaped cylinder (2) one by one through the push plate (26), and the magnetic core (14) entering 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 roller (32), the counterclockwise rotating roller (32) drives 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 passing magnetic core (14), and then the grinded magnetic core (14) will be moved out from the left half cylinder (23), and then the moved magnetic core (14) can be collected.

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