A polishing device for processing a ring-shaped magnetic core

Abstract

The utility model discloses a kind of grinding devices for annular magnetic core processing, including bottom plate, inner polishing mechanism and clamping mechanism;Bottom plate: its upper surface middle part is provided with outer polishing mechanism;Inner polishing mechanism: it includes fixed base one, mounting seat, top ring one, positioning rod and polishing wheel, the upper surface rear side of bottom plate is fixedly connected with fixed base one, the middle part of the front side surface of fixed base one is equipped with mounting seat, the outer camber surface of mounting seat is rotatably connected with top ring one by bearing, the front side surface of mounting seat is fixedly connected with the positioning rod of uniform distribution, the front end of positioning rod is rotatably connected with runner, the outside of runner is slidably connected with annular magnetic core, the lower end of mounting seat is rotatably connected with polishing wheel by pivot, the outer camber surface of polishing wheel and the inner camber surface of annular magnetic core are slidably connected;The grinding device for annular magnetic core processing can polish the inner and outer camber surface of annular magnetic core simultaneously, and the polishing efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of toroidal magnetic core processing technology, specifically a grinding device for toroidal magnetic core processing. Background Technology

[0002] A magnetic core is a magnetic component made of soft magnetic material with high permeability and low loss. Its core function is to guide and concentrate magnetic field lines, significantly enhancing the magnetic field strength generated by the coil. When current flows through a coil wound on the magnetic core, a strong magnetic field is formed inside the core. Its permeability is much higher than that of air, which can effectively constrain the magnetic flux path and greatly improve inductance or transformer efficiency. Magnetic cores are widely used in transformers, inductors, reactors, motor stators / rotors, electromagnets, sensors, and early computer magnetic core memory, and are the core components for electromagnetic energy conversion and management.

[0003] Authorization announcement number CN218081902U discloses a grinding device for processing toroidal magnetic cores, relating to the field of toroidal magnetic core processing technology. This grinding device for processing toroidal magnetic cores includes a mounting frame, a grinding assembly, a toroidal magnetic core, a drive assembly, a fixing mechanism, and a rotating mechanism. The mounting frame includes a fixing rod, a fixing plate, and a top plate, with the fixing plate fixedly mounted on the outer wall of the fixing rod. This grinding device for processing toroidal magnetic cores can clamp the toroidal magnetic core internally or externally, allowing the grinding block to contact the top, inner, and outer sides of the toroidal magnetic core for grinding. It can also drive the toroidal magnetic core to rotate stably, ensuring full contact between the grinding block and the core, reducing deformation of the inner and outer curvatures, and minimizing core offset during grinding. This maintains the toroidal core's circular shape and ensures high processing quality. However, when clamping the toroidal magnetic core, it can only perform internal or external clamping, requiring separate grinding of the inner and outer curved surfaces, resulting in low grinding efficiency. Therefore, we propose a grinding device for processing toroidal magnetic cores. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a grinding device for processing toroidal magnetic cores, which can grind the inner and outer arc surfaces of the toroidal magnetic cores at the same time, with higher grinding efficiency, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for processing ring magnetic cores, comprising a base plate, an internal grinding mechanism, and a clamping mechanism; Base plate: An external grinding mechanism is provided in the middle of its upper surface; Internal grinding mechanism: It includes a fixed base, a mounting base, a top ring, positioning rods and grinding wheels. The fixed base is fixedly connected to the rear side of the upper surface of the base plate. The mounting base is provided in the middle of the front side of the fixed base. The outer arc surface of the mounting base is rotatably connected to the top ring through a bearing. The front side of the mounting base is fixedly connected to evenly distributed positioning rods. The front end of each positioning rod is rotatably connected to a rotating wheel. The outer sides of the rotating wheels are slidably connected to an annular magnetic core. The lower end of the mounting base is rotatably connected to a grinding wheel through a rotating shaft. The outer arc surface of the grinding wheel is slidably connected to the inner arc surface of the annular magnetic core. Clamping mechanism: It includes a base and a second top ring. The base is located at the front end of the base plate. The second top ring is rotatably connected to the rear side of the base through a bearing. The annular magnetic core is located between the second top ring and the first top ring, which can simultaneously polish the inner and outer arc surfaces of the annular magnetic core, resulting in higher polishing efficiency.

[0006] Furthermore, it also includes a control switch assembly, which is disposed on the upper surface of the base plate. The input end of the control switch assembly is electrically connected to an external power source to control electrical appliances.

[0007] Furthermore, the internal grinding mechanism also includes a motor, which is fixedly connected to the lower rear side of the fixed base. The output shaft of the motor is fixedly connected to the rear end of the grinding wheel shaft, and the input end of the motor is electrically connected to the output end of the control switch group to drive the grinding wheel to rotate.

[0008] Furthermore, the internal grinding mechanism also includes an external gear ring, a gear, and a second motor. The external gear ring is fixedly sleeved on the rear end of the outer arc surface of the top ring. The second motor is fixedly connected to the upper end of the rear side of the fixed base. The front end of the output shaft of the second motor is fixedly sleeved with a gear, which meshes with the external gear ring. The input end of the second motor is electrically connected to the output end of the control switch group, driving the annular magnetic core to rotate.

[0009] Furthermore, the clamping mechanism also includes a second fixed base, a first sliding column, and a top rod. The second fixed base is fixedly connected to the front end of the upper surface of the base plate. The first sliding column is slidably connected to the sliding holes at both ends of the second fixed base. The base is fixedly connected between the rear ends of the two first sliding columns. The top rod is slidably connected to the middle of the second fixed base. The rear end of the top rod is an optical axis. An end cap is fixedly connected to the rear side of the second fixed base. The optical axis of the top rod passes through the through hole in the middle of the end cap, driving the second top ring to move.

[0010] Furthermore, the external grinding mechanism includes a fixed base three, a grinding pulley, a motor three, and a grinding pulley seat. The fixed base three is fixedly connected to the right side of the upper surface of the base plate, and the grinding pulley seat is located on the right side of the upper surface of the base plate. The front side of the fixed base three and the front side of the grinding pulley seat are both rotatably connected to grinding pulleys via rotating shafts. The two grinding pulleys are connected by a grinding belt drive. The outer arc surface of the annular magnetic core is slidably connected to the outer side of the grinding belt. The rear side of the fixed base three is fixedly connected to the motor three. The output shaft of the motor three is fixedly connected to the rotating shaft of the grinding pulley on the right side. The input end of the motor three is electrically connected to the output end of the control switch group to realize the grinding of the outer arc surface.

[0011] Furthermore, the external grinding mechanism includes a fixed base four and a tightening bolt. The fixed base four is fixedly connected to the left side of the upper surface of the base plate. The front end of the fixed base four is fixedly connected to two symmetrically distributed sliding columns. The grinding belt wheel seat is slidably connected between the two sliding columns. The right side of the fixed base four is threadedly connected to the tightening bolt. The stud of the tightening bolt contacts the right side of the grinding belt wheel seat, which facilitates the replacement of the grinding belt.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This grinding device for processing toroidal magnetic cores has the following advantages: By rotating the top rod, the entire assembly consisting of the base and the second top ring is moved backward, so that the annular magnetic core is clamped between the first and second top rings. The positioning rod prevents the annular magnetic core from shifting during clamping. During grinding, the second motor drives the entire assembly consisting of the outer toothed ring and the first top ring to rotate, which in turn drives the annular magnetic core to rotate. At this time, the first motor drives the grinding wheel to rotate, grinding the inner arc surface of the annular magnetic core. The output shaft of the third motor drives the grinding belt to rotate, grinding the outer arc surface of the annular magnetic core. The annular magnetic core is ground on both the inner and outer arc surfaces simultaneously, resulting in higher grinding efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the internal grinding mechanism of this utility model. Figure 3 This is a schematic diagram of the clamping mechanism of this utility model.

[0014] In the diagram: 1. Base plate, 2. Control switch group, 3. Internal grinding mechanism, 31. Fixed seat one, 32. Mounting seat, 33. Top ring one, 34. Positioning rod, 35. Grinding wheel, 36. External gear ring, 37. Gear, 38. Motor one, 39. Motor two, 4. Clamping mechanism, 41. Fixed seat two, 42. Sliding column one, 43. Base, 44. Top ring two, 45. Top rod, 5. External grinding mechanism, 51. Fixed seat three, 52. Grinding pulley, 53. Motor three, 54. Fixed seat four, 55. Grinding pulley seat, 56. Tightening bolt, 6. Annular magnetic core. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-3 This embodiment provides a technical solution: a grinding device for processing ring magnetic cores, including a base plate 1, an inner grinding mechanism 3 and a clamping mechanism 4; Base plate 1: An external grinding mechanism 5 is provided in the middle of its upper surface. The external grinding mechanism 5 includes a fixed base 51, a grinding pulley 52, a motor 53, and a grinding pulley seat 55. The fixed base 51 is fixedly connected to the right side of the upper surface of the base plate 1. The grinding pulley seat 55 is located on the right side of the upper surface of the base plate 1. The front side of the fixed base 51 and the front side of the grinding pulley seat 55 are rotatably connected to the grinding pulley 52 through a rotating shaft. The two grinding pulleys 52 are connected by a grinding belt drive. The outer arc surface of the annular magnetic core 6 is slidably connected to the outer side of the grinding belt. The rear side of the fixed base 51 is fixedly connected to the motor 53. The output shaft of the motor 53 is fixedly connected to the rotating shaft of the grinding pulley 52 on the right side. The input end of the motor 53 is electrically connected to... Connected to the output of control switch group 2, the external grinding mechanism 5 includes a fixed base 4 54 and a tightening bolt 56. The fixed base 4 54 is fixedly connected to the left side of the upper surface of the base plate 1. The front end of the fixed base 4 54 is fixedly connected to two symmetrically distributed sliding columns. The grinding pulley seat 55 is slidably connected between the two sliding columns. The right side of the fixed base 4 54 is threaded with the tightening bolt 56. The stud of the tightening bolt 56 contacts the right side of the grinding pulley seat 55. The output shaft of motor 3 53 drives the grinding pulley 52 on the right side to rotate, which drives the grinding belt to rotate and grind the outer arc surface of the annular magnetic core 6. When the grinding belt needs to be replaced, the tightening bolt 56 is removed, and the grinding pulley seat 55 is slid to the right to loosen the grinding belt, making it easy to replace the new grinding belt. The internal grinding mechanism 3 includes a fixed base 31, a mounting base 32, a top ring 33, positioning rods 34, and a grinding wheel 35. The fixed base 31 is fixedly connected to the rear side of the upper surface of the base plate 1. The mounting base 32 is located in the middle of the front side of the fixed base 31. The top ring 33 is rotatably connected to the outer arc surface of the mounting base 32 via a bearing. The positioning rods 34 are fixedly connected to the front side of the mounting base 32, and each positioning rod 34 is rotatably connected to a wheel at its front end. A ring-shaped magnetic core 6 is slidably connected between the outer surfaces of the wheels. The grinding wheel 35 is rotatably connected to the lower end of the mounting base 32 via a rotating shaft. The outer arc surface of the grinding wheel 35 is slidably connected to the inner arc surface of the ring-shaped magnetic core 6. The internal grinding mechanism 3 also includes a motor 38, which is fixedly connected to the lower end of the rear side of the fixed base 31. The output shaft of the motor 38... The grinding mechanism 3 is fixedly connected to the rear end of the grinding wheel 35 shaft. The input end of motor 38 is electrically connected to the output end of control switch group 2. The internal grinding mechanism 3 also includes an external gear ring 36, a gear 37 and a motor 39. The external gear ring 36 is fixedly sleeved on the rear end of the outer arc surface of the top ring 33. The motor 39 is fixedly connected to the upper end of the rear side of the fixed seat 31. The front end of the output shaft of motor 39 is fixedly sleeved with a gear 37. The gear 37 meshes with the external gear ring 36. The input end of motor 39 is electrically connected to the output end of control switch group 2. The output shaft of motor 39 drives the gear 37. The gear 37 drives the entire assembly of the external gear ring 36 and the top ring 33 to rotate, thereby driving the annular magnetic core 6 and the top ring 44 to rotate. The output shaft of motor 38 drives the grinding wheel 35 to rotate, grinding the inner arc surface of the annular magnetic core 6. Clamping mechanism 4: It includes a base 43 and a second top ring 44. The base 43 is located at the front end of the base plate 1. The second top ring 44 is rotatably connected to the rear side of the base 43 via a bearing. The annular magnetic core 6 is located between the second top ring 44 and the first top ring 33. The clamping mechanism 4 also includes a second fixed seat 41, a first sliding column 42, and a top rod 45. The second fixed seat 41 is fixedly connected to the front end of the upper surface of the base plate 1. The sliding holes at both ends of the second fixed seat 41 are slidably connected to the first sliding column 42. The base 43 is fixedly connected between the rear ends of the two first sliding columns 42. The top rod 45 is slidably connected to the middle of the second fixed seat 41. The rear end of the top rod 45 is an optical axis. An end cap is fixedly connected to the rear side of the second fixed seat 41. The optical axis of the top rod 45 passes through... Through the through hole in the middle of the end cap, the push rod 45 can be rotated. The front end of the threaded part of the push rod 45 is provided with a disc. The front end of the push rod 45 is movably fitted with a telescopic sleeve. The telescopic sleeve is fixedly connected between the disc and the second fixed seat 41 to protect the threaded part of the push rod 45. At the same time, the optical axis of the push rod 45 passes through the through hole in the middle of the end cap to prevent dust from entering the threaded hole from the front end of the second fixed seat 41 and contaminating the threaded part of the push rod 45. The push rod 45 pushes backward, causing the whole assembly consisting of the sliding column 42, the base 43 and the top ring 33 to slide forward. The top ring 33 presses the annular magnetic core 6 forward, so that the annular magnetic core 6 is fitted between the rotating wheels of the three positioning rods 34. Rotating the push rod 45 makes the top ring 44 press the annular magnetic core 6 tightly, ensuring that the annular magnetic core 6 will not rotate between the top ring 33 and the top ring 44.

[0017] It also includes a control switch group 2, which is located on the upper surface of the base plate 1, and the input terminal of the control switch group 2 is electrically connected to an external power supply.

[0018] The working principle of the grinding device for processing toroidal magnetic cores provided by this utility model is as follows: When grinding the toroidal magnetic core, the toroidal magnetic core is placed between the rotating wheels of the three positioning rods 34. The rotatable top rod 45 has a disc at the front end of the threaded part of the top rod 45, and a telescopic sleeve is movably fitted at the front end of the top rod 45. The telescopic sleeve is fixedly connected between the disc and the second fixed seat 41 to protect the threaded part of the top rod 45. At the same time, the optical axis of the top rod 45 passes through the through hole in the middle of the end cover to prevent dust from entering the screw hole from the front end of the second fixed seat 41 and contaminating the threaded part of the top rod 45. The top rod 45 pushes backward, causing the whole assembly consisting of the sliding column 42, the base 43 and the top ring 33 to slide forward. The top ring 33 presses the toroidal magnetic core 6 forward, so that the toroidal magnetic core 6 is fitted between the rotating wheels of the three positioning rods 34. The toroidal magnetic core 6 is clamped between the top ring 33 and the second top ring 44. When the toroidal magnetic core 6 is pressed into place, the rotating wheels are all rubber wheels, which will not scratch the ring. The inner arc surface of the annular magnetic core 6 may be scratched by the grinding wheel 35, but subsequent grinding will smooth the inner arc surface of the annular magnetic core 6. Rotate the top rod 45 to make the top ring 44 press against the annular magnetic core 6. When it is confirmed that the annular magnetic core 6 will not rotate between the top ring 33 and the top ring 44, start the electrical appliance by controlling the switch group 2. The output shaft of the second motor 39 drives the gear 37, which drives the outer gear ring 36 and the top ring 33 to rotate, which in turn drives the annular magnetic core 6 and the top ring 44 to rotate. The output shaft of the first motor 38 drives the grinding wheel 35 to rotate, which grinds the inner arc surface of the annular magnetic core 6. The output shaft of the third motor 53 drives the grinding pulley 52 on the right side to rotate, which in turn drives the grinding belt to rotate, which grinds the outer arc surface of the annular magnetic core 6. When it is necessary to replace the grinding belt, remove the tightening bolt 56, slide the grinding pulley seat 55 to the right to loosen the grinding belt, and make it easy to replace the new grinding belt.

[0019] It is worth noting that, in the above embodiments, motor 38 can be an ABL3657-5509-72-24JH1 motor, motor 39 can be a 9IDGC-90FH geared motor, and motor 53 can be an SF series motor. The control switch group 2 is equipped with switch buttons corresponding to motor 38, motor 39 and motor 53 for controlling their switching operation.

[0020] 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. A grinding device for processing toroidal magnetic cores, characterized in that: It includes a base plate (1), an internal grinding mechanism (3), and a clamping mechanism (4); Base plate (1): An external grinding mechanism (5) is provided in the middle of its upper surface; The internal grinding mechanism (3) includes a fixed seat (31), a mounting seat (32), a top ring (33), a positioning rod (34), and a grinding wheel (35). The fixed seat (31) is fixedly connected to the rear side of the upper surface of the base plate (1). The mounting seat (32) is provided in the middle of the front side of the fixed seat (31). The top ring (33) is rotatably connected to the outer arc surface of the mounting seat (32) through a bearing. The positioning rods (34) are fixedly connected to the front side of the mounting seat (32). The front end of each positioning rod (34) is rotatably connected to a rotating wheel. The outer sides of the rotating wheels are slidably connected to an annular magnetic core (6). The lower end of the mounting seat (32) is rotatably connected to a grinding wheel (35) through a rotating shaft. The outer arc surface of the grinding wheel (35) is slidably connected to the inner arc surface of the annular magnetic core (6). Clamping mechanism (4): It includes a base (43) and a top ring (44). The base (43) is located at the front end of the base plate (1). The rear side of the base (43) is rotatably connected to the top ring (44) via a bearing. The annular magnetic core (6) is located between the top ring (44) and the top ring (33).

2. The grinding device for processing toroidal magnetic cores according to claim 1, characterized in that: It also includes a control switch group (2), which is disposed on the upper surface of the base plate (1), and the input end of the control switch group (2) is electrically connected to an external power supply.

3. The grinding device for processing toroidal magnetic cores according to claim 2, characterized in that: The internal grinding mechanism (3) also includes a motor (38), which is fixedly connected to the lower rear side of the fixed base (31). The output shaft of the motor (38) is fixedly connected to the rear end of the grinding wheel (35) shaft. The input end of the motor (38) is electrically connected to the output end of the control switch group (2).

4. The grinding device for processing toroidal magnetic cores according to claim 2, characterized in that: The internal grinding mechanism (3) also includes an external gear ring (36), a gear (37) and a second motor (39). The external gear ring (36) is fixedly sleeved on the rear end of the outer arc surface of the top ring (33). The second motor (39) is fixedly connected to the upper end of the rear side of the fixed seat (31). The front end of the output shaft of the second motor (39) is fixedly sleeved with a gear (37). The gear (37) meshes with the external gear ring (36). The input end of the second motor (39) is electrically connected to the output end of the control switch group (2).

5. The grinding device for processing toroidal magnetic cores according to claim 1, characterized in that: The clamping mechanism (4) also includes a second fixed seat (41), a first sliding column (42), and a top rod (45). The second fixed seat (41) is fixedly connected to the front end of the upper surface of the base plate (1). The sliding holes at both ends of the second fixed seat (41) are slidably connected to the first sliding column (42). The base (43) is fixedly connected between the rear ends of the two first sliding columns (42). The top rod (45) is slidably connected to the middle of the second fixed seat (41). The rear end of the top rod (45) is an optical axis. An end cap is fixedly connected to the rear side of the second fixed seat (41). The optical axis of the top rod (45) passes through the through hole in the middle of the end cap.

6. A grinding device for processing toroidal magnetic cores according to claim 2, characterized in that: The external grinding mechanism (5) includes a fixed base three (51), a grinding pulley (52), a motor three (53), and a grinding pulley seat (55). The fixed base three (51) is fixedly connected to the right side of the upper surface of the base plate (1). The grinding pulley seat (55) is located on the right side of the upper surface of the base plate (1). The front side of the fixed base three (51) and the front side of the grinding pulley seat (55) are both rotatably connected to the grinding pulley (52) through a rotating shaft. The two grinding pulleys (52) are connected by a grinding belt drive. The outer arc surface of the annular magnetic core (6) is slidably connected to the outer side of the grinding belt. The rear side of the fixed base three (51) is fixedly connected to the motor three (53). The output shaft of the motor three (53) is fixedly connected to the rotating shaft of the grinding pulley (52) on the right side. The input end of the motor three (53) is electrically connected to the output end of the control switch group (2).

7. A grinding device for processing toroidal magnetic cores according to claim 6, characterized in that: The external grinding mechanism (5) includes a fixed seat four (54) and a tightening bolt (56). The fixed seat four (54) is fixedly connected to the left side of the upper surface of the base plate (1). The front end of the fixed seat four (54) is fixedly connected to two sliding columns that are symmetrically distributed vertically. The grinding pulley seat (55) is slidably connected between the two sliding columns. The right side of the fixed seat four (54) is threaded with a tightening bolt (56). The stud of the tightening bolt (56) is in contact with the right side of the grinding pulley seat (55).

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