An ultrafine grain core grinding device

Abstract

The utility model discloses a kind of supermicrocrystalline iron core grinding devices, including workbench, the upper surface of the workbench is fixedly connected with top support frame, including iron core rotation stabilizing mechanism and double-sided grinding mechanism;Iron core rotation stabilizing mechanism: it is set to the upside of top support frame;Double-sided grinding mechanism: it includes bottom grinding wheel, connecting shaft, upside swivel block, upside grinding disc and upside butt joint block, the upper surface rear side of workbench is rotatably connected in connecting shaft, the outer arc surface downside of connecting shaft is fixedly provided with bottom grinding wheel, the upper end of connecting shaft is fixedly connected with upside swivel block, the upper surface of upside swivel block is provided with butt joint groove, the upside of upside swivel block is equipped with upside grinding disc, the lower surface middle part of upside grinding disc is fixedly connected with upside butt joint block, this supermicrocrystalline iron core grinding device, grinding action is smooth, and it is not easy to damage workpiece while grinding efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of ultrafine crystalline iron core production technology, specifically to an ultrafine crystalline iron core grinding device. Background Technology

[0002] Nanocrystalline (also known as nano-amorphous) magnetic cores are a new type of soft magnetic material. They are highly favored for their advantages such as high permeability, high rectangularity ratio, low core loss, and good high-temperature stability. Replacing traditional ferrite cores with nanocrystalline magnetic cores can reduce the size of switching power supplies. After the production of nanocrystalline iron cores, their surfaces need to be ground to ensure the smoothness of the surface.

[0003] In the prior art, patent publication number CN213319400U discloses a grinding device for ultrafine crystal iron cores, including a base, a housing, a telescopic hydraulic cylinder, a fan, a push rod, a clamping mechanism, and a sliding plate. Support columns are bolted to both sides of the top of the base, and a placement cabinet is fixedly installed in the middle of the top of the base. A platform is mounted on the top of the placement cabinet and connected to the top of the support columns. A push rod corresponding to the guide plate is mounted on the platform behind the linear track. A fan is mounted on the top of the platform on one side of the housing.

[0004] The above-mentioned ultra-fine crystalline iron core grinding device has some problems in actual use. During the grinding process, only one side of the ultra-fine crystalline iron core can be ground, which is not efficient. In addition, using a large grinding disc to directly grind the surface of the ultra-fine crystalline iron core requires applying a large pressure to press the ultra-fine crystalline iron core, which can easily damage the ultra-fine crystalline iron core. Therefore, we propose an ultra-fine crystalline iron core grinding device. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an ultra-microcrystalline iron core grinding device that has smooth grinding action, is not easy to damage the workpiece, and has high grinding efficiency, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an ultra-microcrystalline iron core grinding device, including a worktable, wherein a top support frame is fixedly connected to the upper surface of the worktable, and the worktable includes an iron core rotation stabilization mechanism and a double-sided grinding mechanism;

[0007] Core rotation stabilizing mechanism: It is located on the upper side of the top support frame;

[0008] Double-sided grinding mechanism: It includes a bottom grinding wheel, a connecting shaft, an upper rotating block, an upper grinding disc, and an upper docking block. The connecting shaft is rotatably connected to the rear side of the upper surface of the worktable. The bottom grinding wheel is fixedly sleeved on the lower side of the outer arc surface of the connecting shaft. The upper rotating block is fixedly connected to the upper end of the connecting shaft. A docking groove is opened on the upper surface of the upper rotating block. The upper grinding disc is provided on the upper side of the upper rotating block. The upper docking block is fixedly connected to the middle of the lower surface of the upper grinding disc. The grinding action is smooth and does not easily damage the workpiece while having high grinding efficiency.

[0009] Furthermore, a controller is provided on the front side of the workbench, and the input terminal of the controller is electrically connected to an external power source to control the operation of various electrical appliances.

[0010] Furthermore, it also includes a core placement rack, which includes an annular base bracket, a circular frame, and an inner retaining ring. The annular base bracket is fixedly connected to the edge of the upper surface of the workbench. The circular frame is fixedly connected to the middle of the upper surface of the workbench. The inner retaining ring is rotatably connected between the upper and lower inner walls of the circular frame. The outer arc surface of the inner retaining ring engages with the processed core. The outer arc surface of the inner retaining ring is provided with a rubber anti-slip pad. The rear side of the upper side wall of the circular frame is rotatably connected to the outer arc surface of the upper rotating block. The lower side wall of the circular frame is rotatably connected to the rear side of the outer arc surface of the connecting rotating shaft, thereby realizing the function of placing the processed core.

[0011] Furthermore, the double-sided grinding mechanism also includes a grinding motor, a gear, and a gear ring. The grinding motor is fixedly connected to the lower surface of the worktable. The output shaft of the grinding motor is fixedly connected to the lower end of the connecting shaft. A gear is fixedly sleeved in the middle of the outer arc surface of the connecting shaft. The gear is located inside the circular frame. A gear ring is fixedly connected to the inner arc surface of the inner retaining ring. The gear and the gear ring mesh with each other. The input end of the grinding motor is electrically connected to the output end of the controller to provide power for grinding.

[0012] Furthermore, it also includes a cylinder, which is set on the upper surface of the worktable. The piston rod of the cylinder is fixedly connected to a connecting seat. The lower side of the connecting seat is rotatably connected to the upper end of the upper grinding disc. The air inlet of the cylinder is connected to an external air pump to control the height of the upper grinding disc.

[0013] Furthermore, the core rotation stabilization mechanism includes a top mounting frame, rectangular cylinders, rectangular sliders, lead screws, rotating rods, torsion valves, rubber pressure rollers, and partition plates. The top mounting frames are fixedly connected to the upper side of the top support frame. Rectangular cylinders are fixedly connected inside the three top mounting frames respectively. Partition plates are fixedly connected to the middle parts of the three rectangular cylinders respectively. Rectangular sliders are slidably connected inside the three rectangular cylinders respectively. Rubber pressure rollers are rotatably connected to the lower sides of the three rectangular sliders respectively. Lead screws are rotatably connected to the middle parts of the upper ends of the three rectangular sliders respectively. The external thread surface of the lead screw is threadedly connected to the middle part of the partition plate located in the same rectangular cylinder. Rotating rods are fixedly connected to the upper ends of the lead screws respectively. Torsion valves are fixedly connected to the upper ends of the rotating rods respectively. The outer arc surface of the rotating rod is movably sleeved with the middle part of the upper side wall of the rectangular cylinder corresponding to the vertical position, thereby realizing the function of pressing the core.

[0014] Furthermore, a liquid supply pipe is provided on the upper side of the top support frame, and an external grinding liquid supply device is connected to the rear side of the top support frame. A liquid outlet pipe is provided on the right side of the worktable to achieve the functions of cooling and removing grinding debris.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This ultra-microcrystalline iron core grinding device has the following advantages:

[0016] 1. The upper surface of the microcrystalline iron core is pressed by three points on the top side to ensure good stability during rotation and grinding.

[0017] 2. Two sets of grinding wheels are used to grind the upper and lower surfaces of the microcrystalline iron core simultaneously. The microcrystalline iron core can only be ground when it rotates to the rear. This reduces the grinding area and allows it to be smoothly ground by the two sets of grinding wheels. The grinding action is smooth, does not easily damage the workpiece, and has high grinding efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the core rotation stabilization mechanism of this utility model;

[0020] Figure 3 This is an enlarged structural schematic diagram of point A of this utility model;

[0021] Figure 4 This is a partial structural schematic diagram of the double-sided grinding mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the workbench of this utility model;

[0023] Figure 6 This is a schematic diagram of the upper grinding disc and the upper docking block of this utility model.

[0024] In the diagram: 1. Workbench, 2. Top support frame, 3. Iron core rotation stabilizing mechanism, 31. Top mounting frame, 32. Rectangular cylinder, 33. Rectangular slider, 34. Lead screw, 35. Rotating rod, 36. Torque valve, 37. Rubber pressure roller, 4. Iron core placement frame, 41. Annular bottom bracket, 42. Circular frame, 43. Inner retaining ring, 5. Processing iron core, 6. Double-sided grinding mechanism, 61. Bottom grinding wheel, 62. Grinding motor, 63. Connecting shaft, 64. Gear, 65. Upper rotating block, 66. Gear ring, 67. Upper grinding disc, 68. Upper docking block, 7. Liquid supply pipe, 8. Liquid outlet pipe, 9. Cylinder, 10. Controller. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 This embodiment provides a technical solution: an ultra-microcrystalline iron core grinding device, including a worktable 1, a top support frame 2 fixedly connected to the upper surface of the worktable 1, a controller 10 provided on the front side of the worktable 1, the input end of the controller 10 being electrically connected to an external power source, a liquid supply pipe 7 provided on the upper side of the top support frame 2, an external grinding liquid supply device being externally connected to the rear side of the top support frame 2, and a liquid outlet pipe 8 provided on the right side of the worktable 1, including an iron core rotation stabilization mechanism 3 and a double-sided grinding mechanism 6;

[0027] Core rotation stabilizing mechanism 3: It is set on the upper side of the top support frame 2. The core rotation stabilizing mechanism 3 includes a top mounting frame 31, rectangular cylinders 32, rectangular sliders 33, lead screws 34, rotating rods 35, torsion valves 36, rubber pressure rollers 37, and partition plates 38. The top mounting frames 31 are fixedly connected to the upper side of the top support frame 2. Rectangular cylinders 32 are fixedly connected inside the three top mounting frames 31 respectively. Partition plates 38 are fixedly connected to the middle parts of the three rectangular cylinders 32 respectively. Rectangular sliders 33 are slidably connected inside the three rectangular cylinders 32 respectively. Rubber pressure rollers 37 are rotatably connected to the lower side of the three rectangular sliders 33 respectively. Lead screws 34 are rotatably connected to the middle part of the upper end of the three rectangular sliders 33 respectively. The external thread surface of the lead screw 34 is connected to the same rectangular cylinder 31. The middle part of the partition plate 38 inside 2 is threaded. The upper end of the screw 34 is fixedly connected to the rotating rod 35. The upper end of the rotating rod 35 is fixedly connected to the torsion valve 36. The outer arc surface of the rotating rod 35 is movably sleeved on the middle of the upper side wall of the rectangular tube 32 corresponding to the vertical position. Before grinding, the torsion valve 36 can be turned to drive the screw 34 and the rotating rod 35 to rotate at the same time. During this period, the screw 34 and the partition plate 38 maintain a threaded connection relationship. When the screw 34 is rotated, it will push the rectangular slider 33 to move downward in the rectangular tube 32, which will drive the rubber pressure roller 37 to move downward to fit the upper surface of the processed iron core 5. At this time, the three rubber pressure rollers 37 can be adjusted. The three rubber pressure rollers 37 press the upper surface of the processed iron core 5 at the same time to ensure the stability of the processed iron core 5 when it rotates.

[0028] Double-sided grinding mechanism 6: It includes a bottom grinding wheel 61, a connecting shaft 63, an upper rotating block 65, an upper grinding disc 67, and an upper mating block 68. The connecting shaft 63 is rotatably connected to the rear side of the upper surface of the worktable 1. The bottom grinding wheel 61 is fixedly sleeved on the lower side of the outer arc surface of the connecting shaft 63. The upper rotating block 65 is fixedly connected to the upper end of the connecting shaft 63. A mating groove is opened on the upper surface of the upper rotating block 65. The upper grinding disc 67 is provided on the upper side of the upper rotating block 65. The upper mating block 68 is fixedly connected to the middle of the lower surface of the upper grinding disc 67. It also includes a core placement frame 4. The core placement frame 4 includes an annular bottom support 41, a circular frame 42, and an inner retaining ring 43. The annular bottom support 41 is fixedly connected to the edge of the upper surface of the worktable 1. A circular frame 42 is fixedly connected to the center of the surface. An inner retaining ring 43 is rotatably connected between the upper and lower inner walls of the circular frame 42. The outer arc surface of the inner retaining ring 43 is engaged with the processing iron core 5. The outer arc surface of the inner retaining ring 43 is provided with a rubber anti-slip pad. The rear side of the upper side wall of the circular frame 42 is rotatably connected to the outer arc surface of the upper rotating block 65. The lower side wall of the circular frame 42 is rotatably connected to the rear side of the outer arc surface of the connecting rotating shaft 63. The double-sided grinding mechanism 6 also includes a grinding motor 62, a gear 64, and a gear ring 66. The grinding motor 62 is fixedly connected to the lower surface of the worktable 1. The output shaft of the grinding motor 62 is fixedly connected to the lower end of the connecting rotating shaft 63. The gear 64 is fixedly sleeved in the center of the outer arc surface of the connecting rotating shaft 63. The gear 64 is located inside the circular frame 42. The inner arc surface of the inner retaining ring 43 is fixedly... The device includes a gear ring 66, with gear 64 meshing with it. The input of the grinding motor 62 is electrically connected to the output of the controller 10. It also includes a cylinder 9, which is mounted on the upper surface of the worktable 1. The piston rod of the cylinder 9 is fixedly connected to a connecting seat, the lower side of which is rotatably connected to the upper end of the upper grinding disc 67. The air inlet of the cylinder 9 is connected to an external air pump. When the ultra-microcrystalline iron core grinding device is needed, the processed iron core 5 can be manually lifted and locked onto the outer arc surface of the inner retaining ring 43. At this time, the rubber anti-slip pad of the inner retaining ring 43 contacts the inner ring surface of the processed iron core 5, causing the inner retaining ring 43 to lock the processed iron core 5. The lower surface of the processed iron core 5 is then supported by the upper surface of the annular base bracket 41. The external air pump can then be adjusted to control the extension and retraction of the cylinder 9. The end extends, causing the upper grinding disc 67 to move downwards until the upper mating block 68 on the upper grinding disc 67 is engaged in the mating groove (both the mating groove and the upper mating block 68 are elliptical in shape; when the mating groove and the upper mating block 68 are not aligned, as the upper grinding disc 67 moves downwards, the upper mating block 68 needs to be engaged in the mating groove, and the upper grinding disc 67 will rotate until it is engaged in the mating groove). At this time, the lower grinding surface of the upper grinding disc 67 and the upper grinding surface of the bottom grinding wheel 61 respectively adhere to the upper and lower surfaces of the iron core 5. At this time, the controller 10 can be adjusted to operate the grinding motor 62, and the output shaft of the grinding motor 62 rotates, thereby driving the connecting shaft 63 to rotate.This, in turn, drives the bottom grinding wheel 61 to rotate, which in turn drives the gear 64 to rotate. When the gear 64 rotates, it drives the gear ring 66 to rotate. Since the ratio of the number of teeth in the gear ring 66 to the number of teeth in the gear 64 is 1:50, the gear 64 rotates fifty times for the gear ring to rotate one revolution. At this time, as the bottom grinding wheel 61 and the upper grinding disc 67 rotate at high speed, the processed iron core 5 also rotates around the center of the worktable 1. When the surface of the processed iron core 5 rotates to the rear, the bottom grinding wheel 61 and the upper grinding disc 67 grind the surface of the processed iron core 5. At this time, the external grinding fluid supply device is adjusted to continuously spray external grinding fluid onto the grinding surface, carrying away the grinding debris and simultaneously achieving a cooling function.

[0029] The working principle of the ultra-microcrystalline iron core grinding device provided by this utility model is as follows: When the ultra-microcrystalline iron core grinding device is needed, the processing iron core 5 can be manually picked up and locked onto the outer arc surface of the inner retaining ring 43. At this time, the rubber anti-slip pad of the inner retaining ring 43 contacts the inner ring surface of the processing iron core 5, so that the inner retaining ring 43 locks the processing iron core 5. At this time, the lower surface of the processing iron core 5 is lifted by the upper surface of the annular bottom bracket 41. At this time, the external air pump can be adjusted, the telescopic end of the cylinder 9 extends, driving the upper grinding disc 67 to move downwards. The upper mating block 68 on the upper grinding disc 67 is inserted into the mating groove. At this time, the lower grinding surface of the upper grinding disc 67 and the upper grinding surface of the bottom grinding wheel 61 are respectively attached to process the upper and lower surfaces of the iron core 5. At this time, the controller 10 can be adjusted to start the grinding motor 62. The output shaft of the grinding motor 62 rotates, which in turn drives the connecting shaft 63 to rotate, which in turn drives the bottom grinding wheel 61 to rotate. At the same time, it drives the gear 64 to rotate. When the gear 64 rotates, it drives the gear ring 66 to rotate. The tooth ratio of the gear ring 66 to the gear 64 is 1:50. Therefore, when the gear 64 rotates fifty times, the gear ring rotates one time. At this time, as the bottom grinding wheel 61 and the upper grinding disc 67 rotate at high speed, the processed iron core 5 also rotates around the center of the worktable 1. When the surface of the processed iron core 5 rotates to the rear, the bottom grinding wheel 61 and the upper grinding disc 67 grind the surface of the processed iron core 5. At this time, the external grinding fluid supply device is adjusted to continuously spray external grinding fluid onto the grinding surface, carrying away the grinding debris. It can also achieve the function of cooling. Before grinding, the torsion valve 36 can be turned to drive the lead screw 34 and the rotating rod 35 to rotate at the same time. During this period, the lead screw 34 and the partition plate 38 maintain a threaded connection. When the lead screw 34 is rotated, it will push the rectangular slider 33 to move downward in the rectangular cylinder 32, which will drive the rubber pressure roller 37 to move downward to fit the upper surface of the processed iron core 5. At this time, the three rubber pressure rollers 37 can be adjusted. The three rubber pressure rollers 37 press the upper surface of the processed iron core 5 at the same time to ensure the stability of the processed iron core 5 when it rotates.

[0030] It is worth noting that the microcontroller of the controller 10 disclosed in the above embodiments is specifically model S7-200. The grinding motor 62 and cylinder 9 can be freely configured according to the actual application scenario. It is recommended that the grinding motor 62 be a TD80BLS99 model DC brushless servo motor, and the cylinder 9 be an SMC series standard cylinder. The controller 10 controls the operation of the grinding motor 62 using methods commonly used in the prior art.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An ultra-fine grain iron core grinding device, comprising a workbench (1), the upper surface of the workbench (1) is fixedly connected with a top support frame (2), characterized in that: It includes a core rotation stabilization mechanism (3) and a double-sided grinding mechanism (6); Core rotation stabilizing mechanism (3): It is located on the upper side of the top support frame (2); Double-sided grinding mechanism (6): It includes a bottom grinding wheel (61), a connecting shaft (63), an upper rotating block (65), an upper grinding disc (67), and an upper docking block (68). The connecting shaft (63) is rotatably connected to the rear side of the upper surface of the worktable (1). The bottom grinding wheel (61) is fixedly sleeved on the lower side of the outer arc surface of the connecting shaft (63). The upper side rotating block (65) is fixedly connected to the upper end of the connecting shaft (63). A docking groove is opened on the upper surface of the upper rotating block (65). The upper side grinding disc (67) is provided on the upper side of the upper rotating block (65). The upper side docking block (68) is fixedly connected to the middle of the lower surface of the upper grinding disc (67).

2. The ultrafine-grain core grinding device of claim 1, wherein: The front side of the workbench (1) is provided with a controller (10), and the input end of the controller (10) is electrically connected to an external power source.

3. The ultrafine grain core grinding apparatus of claim 2, wherein: It also includes a core placement frame (4), which includes an annular base bracket (41), a circular frame (42) and an inner retaining ring (43). The annular base bracket (41) is fixedly connected to the edge of the upper surface of the workbench (1). The circular frame (42) is fixedly connected to the middle of the upper surface of the workbench (1). The inner retaining ring (43) is rotatably connected between the upper and lower inner walls of the circular frame (42). The outer arc surface of the inner retaining ring (43) is engaged with the processed core (5). The outer arc surface of the inner retaining ring (43) is provided with a rubber anti-slip pad. The rear side of the upper side wall of the circular frame (42) is rotatably connected to the outer arc surface of the upper rotating block (65). The lower side wall of the circular frame (42) is rotatably connected to the rear side of the outer arc surface of the connecting shaft (63).

4. The ultrafine grain core grinding apparatus of claim 3, wherein: The double-sided grinding mechanism (6) also includes a grinding motor (62), a gear (64) and a gear ring (66). The grinding motor (62) is fixedly connected to the lower surface of the worktable (1). The output shaft of the grinding motor (62) is fixedly connected to the lower end of the connecting shaft (63). The gear (64) is fixedly sleeved in the middle of the outer arc surface of the connecting shaft (63). The gear (64) is located inside the circular frame (42). The gear ring (66) is fixedly connected to the inner arc surface of the inner retaining ring (43). The gear (64) and the gear ring (66) mesh with each other. The input end of the grinding motor (62) is electrically connected to the output end of the controller (10).

5. The ultrafine grain core grinding apparatus of claim 1, wherein: It also includes a cylinder (9), which is set on the upper surface of the workbench (1). The piston rod of the cylinder (9) is fixedly connected to a connecting seat. The lower side of the connecting seat is rotatably connected to the upper end of the upper grinding disc (67). The air inlet of the cylinder (9) is connected to an external air pump.

6. The ultrafine crystal iron core grinding device according to claim 1, characterized in that: The core rotation stabilizing mechanism (3) includes a top mounting bracket (31), rectangular cylinders (32), rectangular sliders (33), a lead screw (34), a rotating rod (35), a torsion valve (36), a rubber pressure roller (37), and a partition plate (38). The top mounting bracket (31) is fixedly connected to the upper side of the top support frame (2). Rectangular cylinders (32) are fixedly connected inside the three top mounting brackets (31). The middle parts of the three rectangular cylinders (32) are fixedly connected to the partition plates (38). Rectangular sliders are slidably connected inside the three rectangular cylinders (32). The lower side of the block (33) is rotatably connected to a rubber pressure roller (37). The upper middle part of the three rectangular sliders (33) is rotatably connected to a lead screw (34). The outer thread surface of the lead screw (34) is threadedly connected to the middle part of the partition plate (38) located in the same rectangular cylinder (32). The upper end of the lead screw (34) is fixedly connected to a rotating rod (35). The upper end of the rotating rod (35) is fixedly connected to a torsion valve (36). The outer arc surface of the rotating rod (35) is movably sleeved on the middle part of the upper side wall of the rectangular cylinder (32) corresponding to the vertical position.

7. The ultrafine crystal iron core grinding device according to claim 1, characterized in that: The top support frame (2) is provided with a liquid supply pipe (7) on its upper side, and the rear side of the top support frame (2) is connected to an external grinding liquid supply device. The right side of the workbench (1) is provided with a liquid outlet pipe (8).

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