A center column gap grinding cleaning mechanism
By designing a grinding and cleaning mechanism for the central column gap, the problem of inaccurate control of the central column gap position in the magnetic core was solved, the grinding accuracy and consistency of the magnetic core were improved, and efficient batch processing was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JISHENG MAGNETIC MATERIAL CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-29
AI Technical Summary
Existing grinding and cleaning mechanisms have difficulty in accurately controlling the position and size of the gap in the core column, resulting in inconsistent core performance and low working efficiency.
A central column open-gap grinding and cleaning mechanism was designed, comprising a concave worktable, a feeding unit, a reciprocating drive unit, a clamping unit, a bearing unit, and a rinsing unit. By precisely controlling the position and movement of the magnetic core, combined with automated feeding and rinsing cooling, the grinding accuracy and efficiency are improved.
Precise grinding of the gap in the core column was achieved, which improved the performance consistency of the core and the efficiency of batch processing, reduced the impact of friction and heat, and ensured the stable operation of the equipment.
Smart Images
Figure CN224295486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic core processing technology, specifically to a central column gap grinding and cleaning mechanism. Background Technology
[0002] In magnetic components, creating an air gap in the core post is a common design technique. Since the permeability of the core material is not infinite, when the magnetic flux through the core exceeds a certain threshold, it enters a state of magnetic saturation. At this point, the permeability drops sharply, the inductance decreases significantly, and the component performance deteriorates. The presence of an air gap introduces magnetic reluctance, reducing the effective permeability of the core and thus suppressing excessive magnetic flux growth, preventing premature core saturation. To achieve this, a portion of the core post needs to be ground away to create an air gap. However, existing grinding and cleaning mechanisms struggle to precisely control the grinding position and size when performing gap grinding on the core post, easily leading to positional deviations in the gap and affecting the consistency of core performance. Furthermore, they suffer from low efficiency when processing large batches of cores. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a central column gap grinding and cleaning mechanism, which solves the technical problems of low processing accuracy and low working efficiency of existing grinding and cleaning mechanisms.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a central column gap grinding and cleaning mechanism, including a worktable with a concave surface, a feeding unit fixed on the side wall of the worktable, an "L"-shaped side plate fixed on the side wall of the worktable away from the feeding unit, a reciprocating drive unit mounted on the side wall of the worktable on one side of the side plate, a movable plate fixedly connected to the reciprocating drive unit, a pressing unit mounted on the movable plate, two symmetrically arranged guide grooves at the bottom of the worktable surface, and a bearing unit fixedly installed in each of the two guide grooves, a second motor installed on the inner side of the worktable, a grinding wheel fixedly installed on the output shaft of the second motor, the grinding wheel protruding from the through hole opened on the surface of the worktable, a water tank installed at the bottom of the worktable, and a rinsing unit installed in the water tank.
[0005] Preferably, the feeding unit includes a fixed plate fixed to the side wall of the workbench, a conveyor belt is embedded on the surface of the fixed plate, a baffle is also installed on the fixed plate, and an electric push rod is installed on the side wall of the baffle.
[0006] Preferably, the top of the workbench is provided with a feed inlet on the side near the feeding unit, and the feed inlet corresponds to the position of the electric push rod.
[0007] Preferably, the reciprocating drive unit includes a motor installed in the workbench. A turntable is fixed on the output shaft of the motor. The edge of the turntable sidewall is hinged to one end of a gear plate via a connecting rod. The gear plate is slidably mounted on the sidewall of the workbench via a support seat. A gear meshes above the gear plate and is rotatably connected to the sidewall of the workbench. A swing arm is fixed on the gear and has a movable hole. A fixed block is slidably mounted in the movable hole and is fixed to the sidewall of the slider. The slider is slidably mounted in a sliding hole on the side plate.
[0008] Preferably, the clamping unit includes a cylinder mounted on the movable plate, an "L"-shaped pressure block is fixed on the telescopic column of the cylinder, and two guide rods are fixed on the pressure block, both of which are movably connected to the movable plate.
[0009] Preferably, the bearing unit includes a fixed block fixed in the guide groove, a sliding rod movably connected to the fixed block, a spring sleeved on the outer wall of the sliding rod, a bearing block fixedly connected to the end of the sliding rod away from the spring, and a plurality of equally spaced balls movably arranged at the bottom of the bearing block.
[0010] Preferably, the rinsing unit includes a water pump installed in a water tank, and a rinsing pipe is connected to the water pump, with one end of the rinsing pipe facing the grinding wheel.
[0011] Preferably, a filter screen is inserted into the inner wall of the water tank near the water pump.
[0012] Preferably, a material guide plate is installed at an angle on one side of the workbench.
[0013] By employing the above technical solution, this utility model provides a central column gap grinding and cleaning mechanism, which has at least the following beneficial effects:
[0014] 1. In this center column gap grinding and cleaning mechanism, since the worktable surface is concave, after the clamping unit presses the magnetic core onto the worktable, the reciprocating drive unit can make the magnetic core move along the worktable surface, which can limit the magnetic core to avoid the problem of deviation of the center column during grinding, and improve the grinding accuracy and consistency of the center column.
[0015] 2. In this central column gap grinding and cleaning mechanism, by setting a bearing unit, when the magnetic core is pressed down by the pressing unit, the two side columns on the side of the magnetic core will directly press on the bearing block. Since there are balls at the bottom of the bearing block, the magnetic core is in a sliding state relative to the worktable. This can reduce the friction of the magnetic core when it moves, thereby improving the smoothness of the overall structure during operation.
[0016] 3. The central column gap grinding and cleaning mechanism, by setting up a feeding unit, can feed batches of magnetic cores one by one onto the worktable via a conveyor belt, thereby realizing batch processing of magnetic cores.
[0017] 4. The central column gap grinding and cleaning mechanism, by setting up a rinsing unit, achieves rinsing during the grinding process of the magnetic core central column being ground by the grinding wheel. On the one hand, it reduces the problems generated during the grinding process, and on the other hand, it carries the grinding debris into the water tank to avoid accumulation on the worktable. Attached Figure Description
[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:
[0019] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0020] Figure 2 This is a schematic diagram of the structure of each component on the side wall of the workbench of this utility model;
[0021] Figure 3 This is a schematic diagram of the inner structure of the workbench of this utility model;
[0022] Figure 4 This is a schematic diagram of the structure of the workbench surface of this utility model;
[0023] Figure 5 This is a schematic diagram of the structure of the bearing unit of this utility model.
[0024] Figure label:
[0025] 1. Workbench; 101. Feed inlet; 102. Guide groove; 2. Feeding unit; 201. Fixed plate; 202. Conveyor belt; 203. Baffle; 204. Electric push rod; 3. Side plate; 4. Reciprocating drive unit; 401. Motor 1; 402. Turntable; 403. Connecting rod; 404. Gear plate; 405. Support block; 406. Gear; 407. Swing arm; 408. Fixed block; 409. Slide 5. Block; 6. Movable plate; 7. Pressing unit; 8. Cylinder; 9. Pressing block; 10. Guide rod; 11. Bearing unit; 12. Fixed block; 13. Slide rod; 14. Spring; 15. Bearing block; 16. Ball bearing; 17. Motor II; 18. Grinding wheel; 19. Water tank; 10. Washing unit; 11. Water pump; 11. Washing pipe; 12. Filter screen partition; 13. Discharge guide plate. Detailed Implementation
[0026] 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.
[0027] In the field of electronic component manufacturing, magnetic cores, as essential basic components, are widely used in equipment such as transformers and inductors. With the rapid development of the electronics industry, higher demands are being placed on the performance and production efficiency of magnetic cores. Creating an air gap in the core's central column is one of the key processes in magnetic core production. The accuracy and quality of the air gap directly affect the electromagnetic performance of the magnetic core, and consequently, the stability and reliability of the entire electronic device.
[0028] Due to the technical shortcomings of existing technologies, such as low processing accuracy and low work efficiency, please refer to... Figures 1-5 This embodiment provides a center column gap grinding and cleaning mechanism, which can limit the magnetic core to avoid deviation during grinding, thereby improving the grinding accuracy and consistency of the center column. The mechanism includes a worktable 1 with a concave surface. The concave structure can better position and limit the magnetic core, making the magnetic core more stable during feeding, clamping, and grinding, reducing the shaking and displacement of the magnetic core, and improving grinding accuracy. A feeding unit 2 is fixed on the side wall of the worktable 1. An "L"-shaped side plate 3 is fixed on the side wall of the worktable 1 away from the feeding unit 2. A reciprocating drive unit 4 is installed on one side of the side plate 3 and mounted on the side wall of the worktable 1. A movable plate 5 is fixed to the reciprocating drive unit 4, and a clamping unit 6 is installed on the movable plate 5. Two symmetrically arranged guide grooves 102 are provided at the bottom of the surface of the worktable 1. Each of the two sets of bearing units 7 is fixedly installed inside the worktable 1. A second motor 8 is installed on the inner side of the worktable 1. A grinding wheel 9 is fixedly installed on the output shaft of the second motor 8. The grinding wheel 9 protrudes from the through hole opened on the surface of the worktable 1. A water tank 10 is installed at the bottom of the worktable 1. A rinsing unit 11 is installed in the water tank 10. In use, the magnetic core is pushed into the worktable 1 through the feeding unit 2. Then the pressing unit 6 works and presses the magnetic core onto the two sets of bearing units 7. After the reciprocating drive mechanism runs, it can drive the magnetic core to move along the surface of the worktable 1 through the pressing unit 6. When the magnetic core moves to the position of the grinding wheel 9, the central column of the magnetic core just contacts the grinding wheel 9. At this time, the height of the grinding wheel 9 protruding from the worktable 1 is the thickness of the central column that has been ground off. After the central column has been ground off, the reciprocating drive mechanism continues to drive the magnetic core to move until it slides off one side of the worktable 1.
[0029] Existing feeding methods suffer from low feeding accuracy, low automation, and inability to accurately control the core feeding position, resulting in inaccurate core positioning before grinding and affecting grinding quality. To address this issue, please refer to... Figure 1The feeding unit 2 includes a fixed plate 201 fixed to the side wall of the worktable 1. A conveyor belt 202 is embedded on the surface of the fixed plate 201. A baffle 203 is also installed on the fixed plate 201. An electric push rod 204 is installed on the side wall of the baffle 203. Through the cooperation of the conveyor belt 202 and the electric push rod 204 on the fixed plate 201, the automatic feeding of the magnetic core can be realized, improving the feeding efficiency and accuracy. The baffle 203 can prevent the magnetic core from falling during the feeding process, and the electric push rod 204 can accurately push the magnetic core to the designated position on the worktable 1, thereby providing an accurate starting position for subsequent processing.
[0030] Furthermore, a feed inlet 101 is provided on the top of the worktable 1 near the feeding unit, and the feed inlet 101 corresponds to the position of the electric push rod 204; when the electric push rod 204 is working, it can push the magnetic core through the feed inlet 101 and into the worktable 1, thereby facilitating subsequent processing.
[0031] Existing drive methods suffer from low motion accuracy, poor stability, and difficulty in achieving precise reciprocating motion. This results in inaccurate motion trajectories of the magnetic core during grinding, affecting the consistency and precision of the grinding process. To address this issue, please refer to... Figure 1 and Figure 2 The reciprocating drive unit 4 includes a motor 401 installed in the workbench 1. A turntable 402 is fixed on the output shaft of the motor 401. The edge of the side wall of the turntable 402 is hinged to one end of a gear plate 404 via a connecting rod 403. The gear plate 404 is slidably mounted on the side wall of the workbench 1 via a support base. A gear 406 meshes above the gear plate 404 and is rotatably connected to the side wall of the workbench 1. A swing arm 407 is fixed on the gear 406. A movable hole is opened on the swing arm 407, and a fixed block 408 is slidably mounted in the movable hole. The fixed block 408 is fixed to the side wall of a slider 409, and the slider 409 is slidably mounted in a sliding hole opened on the side plate 3. The motor 401 and the turntable 402 are used to drive the reciprocating drive unit 4. The transmission mechanism, composed of disc 402, connecting rod 403, toothed plate 404, gear 406, and swing arm 407, can achieve relatively precise and stable reciprocating motion. By adjusting the speed of motor 401 and the parameters of the transmission mechanism, the moving speed and stroke of the magnetic core can be accurately controlled, ensuring that the magnetic core moves along a predetermined trajectory during grinding, thereby improving the precision and consistency of grinding. The specific motion process is as follows: motor 401 drives disc 402 to rotate, disc 402 drives toothed plate 404 to reciprocate through connecting rod 403, toothed plate 404 drives swing arm 407 to swing through meshing with gear 406, thereby driving the clamping mechanism to reciprocate, so as to realize the grinding operation of the magnetic core.
[0032] Existing clamping methods suffer from problems such as insufficient, uneven, or difficult-to-control clamping force, which can cause the magnetic core to easily shift or wobble during grinding, affecting the grinding quality. To address this issue, please refer to... Figure 1 The clamping unit 6 includes a cylinder 601 mounted on the movable plate 5. An "L"-shaped clamping block 602 is fixed on the telescopic column of the cylinder 601. Two guide rods 603 are fixed on the clamping block 602, and both guide rods 603 are movably connected to the movable plate 5. By using the clamping force provided by the cylinder 601, the clamping degree of the clamping block 602 on the magnetic core can be precisely controlled, ensuring that the magnetic core is firmly fixed on the bearing unit 7 during the grinding process, avoiding grinding errors caused by the movement of the magnetic core, and improving the accuracy and stability of grinding. At the same time, the setting of the guide rods 603 can make the movement of the clamping block 602 more stable, further ensuring the uniformity of the clamping force.
[0033] When the clamping unit 6 presses the magnetic core onto the worktable 1, there is significant friction between the magnetic core and the worktable 1. This results in considerable resistance when the reciprocating moving unit moves the magnetic core, making the overall structure prone to jamming. For this issue, please refer to... Figure 4 As shown in the figure, the support unit 7 includes a fixed block 408 fixed in the guide groove 102. The fixed block 408 is movably connected to a slide rod 702. A spring 703 is sleeved on the outer wall of the slide rod 702. A support block 704 is fixed to the end of the slide rod 702 away from the spring 703. Multiple equidistantly distributed balls 705 are movably provided at the bottom of the support block 704. When the magnetic core is pressed down by the pressing unit 6, the two side posts on the side of the magnetic core will directly press on the support block 704. Since the support block 704 has balls 705 at the bottom, the magnetic core is in a sliding state relative to the worktable 1. This can reduce the friction of the magnetic core when it moves, so as to improve the smoothness of the overall structure during operation. When the magnetic core slides off one side of the worktable 1 after grinding, the support block 704 can return to the initial position under the restoring force of the spring 703, so that the next magnetic core can be ground.
[0034] Existing facilities lack effective cooling and cleaning measures. The heat and debris generated during grinding can affect the quality of the magnetic core and the grinding accuracy, and are also detrimental to the long-term stable operation of the equipment. For solutions to this problem, please refer to... Figure 1 The rinsing unit 11 includes a water pump 1101 installed in the water tank 10. A rinsing pipe 1102 is connected to the water pump 1101, with one end of the rinsing pipe 1102 facing the position of the grinding wheel 9. The water pump 1101 in the water tank 10 delivers water to the position of the grinding wheel 9 through the rinsing pipe 1102 to rinse and cool the grinding wheel 9 and the magnetic core, reduce heat accumulation during the grinding process, prevent the magnetic core from being damaged due to overheating, and at the same time remove the debris generated during grinding in time, thereby improving the surface quality and grinding accuracy of the magnetic core.
[0035] Furthermore, a filter screen 12 is inserted into the inner wall of the water tank 10 near the water pump 1101; the filter screen 12 isolates debris and impurities in the water, preventing debris and impurities from entering the water pump 1101 and affecting its normal operation.
[0036] Furthermore, a feeding guide plate 13 is installed at an angle on one side of the workbench 1; this allows the ground magnetic core to automatically slide to the designated position, achieving automatic feeding and improving production efficiency.
[0037] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A central column gap grinding and cleaning mechanism, comprising a worktable (1) with a concave surface, characterized in that: A feeding unit (2) is fixed on the side wall of the workbench (1). An "L"-shaped side plate (3) is fixed on the side wall of the workbench (1) away from the feeding unit (2). A reciprocating drive unit (4) is installed on one side of the side plate (3) on the side wall of the workbench (1). A movable plate (5) is fixed on the reciprocating drive unit (4). A pressing unit (6) is installed on the movable plate (5). Two symmetrically arranged guide grooves (102) are provided at the bottom of the surface of the workbench (1). A bearing unit (7) is fixed in both guide grooves (102). A motor (8) is installed on the inner side of the workbench (1). A grinding wheel (9) is fixed on the output shaft of the motor (8). The grinding wheel (9) protrudes from the through hole opened on the surface of the workbench (1). A water tank (10) is installed at the bottom of the workbench (1). A rinsing unit (11) is installed in the water tank (10).
2. The central column gap grinding and cleaning mechanism according to claim 1, characterized in that: The feeding unit (2) includes a fixed plate (201) fixed to the side wall of the workbench (1), a conveyor belt (202) is embedded on the surface of the fixed plate (201), a baffle (203) is also installed on the fixed plate (201), and an electric push rod (204) is installed on the side wall of the baffle (203).
3. The central column gap grinding and cleaning mechanism according to claim 2, characterized in that: The workbench (1) has a feed inlet (101) on the side of the top near the feeding unit, and the feed inlet (101) corresponds to the position of the electric push rod (204).
4. The central column gap grinding and cleaning mechanism according to claim 1, characterized in that: The reciprocating drive unit (4) includes a motor (401) installed in the workbench (1). A turntable (402) is fixed on the output shaft of the motor (401). The edge of the side wall of the turntable (402) is hinged to one end of the gear plate (404) through a connecting rod (403). The gear plate (404) is slidably mounted on the side wall of the workbench (1) through a support seat. A gear (406) is meshed above the gear plate (404). The gear (406) is rotatably connected to the side wall of the workbench (1). A swing arm (407) is fixed on the gear (406). A movable hole is opened on the swing arm (407). A fixed block (408) is slidably mounted in the movable hole. The fixed block (408) is fixed to the side wall of the slider (409). The slider (409) is slidably mounted in the sliding hole opened on the side plate (3).
5. The central column gap grinding and cleaning mechanism according to claim 1, characterized in that: The pressing unit (6) includes a cylinder (601) mounted on the movable plate (5). An "L"-shaped pressing block (602) is fixed on the telescopic column of the cylinder (601). Two guide rods (603) are fixed on the pressing block (602), and both guide rods (603) are movably connected to the movable plate (5).
6. The central column gap grinding and cleaning mechanism according to claim 1, characterized in that: The bearing unit (7) includes a fixed block (408) fixed in the guide groove (102), a slide rod (702) movably connected to the fixed block (408), a spring (703) sleeved on the outer wall of the slide rod (702), a bearing block (704) fixedly connected to one end of the slide rod (702) away from the spring (703), and a plurality of equally spaced balls (705) movably provided at the bottom of the bearing block (704).
7. The central column gap grinding and cleaning mechanism according to claim 1, characterized in that: The rinsing unit (11) includes a water pump (1101) installed in the water tank (10), and a rinsing pipe (1102) is connected to the water pump (1101). One end of the rinsing pipe (1102) faces the position of the grinding wheel (9).
8. The central column gap grinding and cleaning mechanism according to claim 7, characterized in that: A filter screen partition (12) is inserted into the inner wall of the water tank (10) near the water pump (1101).
9. The central column gap grinding and cleaning mechanism according to claim 1, characterized in that: A feeding guide plate (13) is installed at an angle on one side of the workbench (1).