Grinding apparatus for ferrite magnetic cylinder

By introducing a negative pressure fan and a double-layer filter system into the grinding equipment, the problem of dust pollution during the grinding of ferrite magnetic columns has been solved, achieving effective dust filtration and convenient filter replacement, thus ensuring a clean working environment.

CN224322822UActive Publication Date: 2026-06-05NANTONG HELI MAGNETIC MATERIALS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG HELI MAGNETIC MATERIALS CO LTD
Filing Date
2025-04-01
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing grinding equipment is unable to effectively remove the dust generated during the grinding of ferrite magnetic columns, causing the dust to float in the air and cause injury to workers.

Method used

Design a grinding device with a negative pressure fan and a filtration system. The negative pressure fan draws dust into the filter element, and the first and second filter screens filter large and small dust particles respectively. The first filter screen can be manually replaced for cleaning.

Benefits of technology

It effectively filters and purifies dust, protects the health of staff, and facilitates the cleaning and maintenance of the filter.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224322822U_ABST
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Abstract

The utility model relates to ferrite magnetic column grinding technical field, specifically disclose a kind of grinding equipment for ferrite magnetic column, including equipment shell, the upper end inside the equipment shell is equipped with mounting seat, the inside mounting seat is equipped with the fixed bolt of equipment shell screw connection, the upper surface of mounting seat is equipped with the grinding mechanism for grinding workpiece, the upper of grinding mechanism is equipped with the clamping mechanism for clamping workpiece;The grinding mechanism includes grinding piece, and the grinding piece is fixed on the upper surface of mounting seat.The grinding mechanism of being set, the outer surface of magnetic column can be ground, dust is sucked into filter piece by negative pressure fan, air can filter larger dust impurities in air when passing through first filter screen, again pass through second filter screen and filter smaller dust in air, when manually pulling movable plate, first filter screen can be extracted from filter piece, convenient for cleaning replacement.
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Description

Technical Field

[0001] This utility model relates to the field of ferrite magnetic column grinding technology, and in particular to a grinding equipment for ferrite magnetic columns. Background Technology

[0002] Grinding ferrite magnets is a machining process designed to precisely finish the surface of ferrite magnets using grinding equipment to achieve the required dimensional accuracy, shape accuracy, and surface roughness. Commonly used grinding equipment includes surface grinders, centerless cylindrical grinders, double-end grinders, and special-purpose grinders. These machines vary depending on the shape, size, and grinding requirements of the ferrite magnets, and primarily use diamond wheels or silicon carbide wheels for grinding. Diamond wheels, with their high hardness, high wear resistance, and high thermal stability, are ideally suited for grinding ferrites.

[0003] In the existing technology, when grinding permanent magnets, the surface of the permanent magnet is arc-shaped. However, the existing grinding equipment has difficulty grinding the arc-shaped surface of the permanent magnet, which affects the neatness of the permanent magnet and makes it difficult to assemble it with electronic and automotive parts.

[0004] An existing patent (publication number: CN221455401U) discloses a surface grinding device for ferrite permanent magnet components. The device includes a base plate, a set of fixed posts fixed to the top of the base plate, a fixed plate fixed to the top of the fixed posts, and a pair of guide rods fixed to the side wall of the fixed plate. The other ends of the guide rods are respectively fixed to the top of the pair of fixed posts. It can drive a grinding roller to grind the surface of the permanent magnet using a spring-loaded telescopic rod. The spring-loaded telescopic rod allows the grinding roller to grind permanent magnets of different sizes. Compared to existing devices that cannot grind the arc surfaces of permanent magnets, this device can effectively grind permanent magnets of different sizes.

[0005] To address the aforementioned issues, while existing patents have proposed solutions that can use a flexible telescopic rod to drive a grinding roller to grind the surface of a permanent magnet, and the elastic telescopic rod allows the grinding roller to grind permanent magnets of different sizes, they cannot purify the dust generated during grinding of the magnetic column. This causes the dust to float in the air, which can easily cause injury to workers. Summary of the Invention

[0006] The purpose of this invention is to provide a grinding device for ferrite magnetic columns, which can grind the outer surface of the magnetic column. A negative pressure fan draws dust into the filter element. When the air passes through the first filter screen, it can filter out larger dust impurities in the air. Then, it passes through the second filter screen to filter out smaller dust particles in the air. When the movable plate is manually pulled, the first filter screen can be pulled out from the filter element for easy cleaning and replacement, thereby solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a grinding device for ferrite magnetic columns, comprising a device housing, an upper mounting base installed inside the device housing, a fixing bolt threadedly connected to the device housing installed inside the mounting base, a grinding mechanism for grinding a workpiece provided on the upper surface of the mounting base, and a clamping mechanism for clamping the workpiece provided above the grinding mechanism.

[0008] The grinding mechanism includes a grinding component, which is fixed on the upper surface of the mounting base. A filter component is connected to the right side of the grinding component. A first filter screen is installed inside the filter component, and both ends of the first filter screen are fixed with fixing strips that are inserted and connected to the filter component.

[0009] Preferably, a movable plate that is movably connected to the filter element is fixed on one side of the first filter screen, and an exhaust pipe is connected to the right side of the filter element.

[0010] Preferably, a negative pressure fan is fixed inside the exhaust pipe by screws, and a second filter screen is provided on the left side of the negative pressure fan and fixedly connected to the exhaust pipe.

[0011] Preferably, two adjusting electric cylinders are symmetrically arranged on the outer surface of the grinding workpiece, and the extension and retraction ends of the two adjusting electric cylinders are fixed with grinding plates through the inner wall of the grinding workpiece.

[0012] Preferably, the clamping mechanism includes two clamping blocks, both of which are positioned above the grinding workpiece.

[0013] Preferably, protective rubber pads are fixed inside both clamping blocks.

[0014] Preferably, each of the two clamping blocks has a clamping electric cylinder fixed to its upper end, and a drive motor that is bolted to the equipment housing is fixed to the upper surface of the clamping electric cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The grinding mechanism can grind the outer surface of the magnetic column. The negative pressure fan draws dust into the filter element. When the air passes through the first filter screen, it can filter out larger dust impurities in the air. Then, it passes through the second filter screen to filter out smaller dust particles in the air. When the movable plate is manually pulled, the first filter screen can be pulled out from the filter element for easy cleaning and replacement.

[0017] 2. The clamping mechanism can bring the two clamping blocks closer together to clamp and fix the magnetic column. The protective rubber pad can play a role in preventing slippage, thereby reducing the possibility of the magnetic column shifting during clamping. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the clamping block of this utility model;

[0021] Figure 3 This is a half-sectional structural diagram of the grinding part of this utility model;

[0022] Figure 4 This is a half-sectional structural diagram of the filter element of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Equipment casing; 2. Mounting base; 3. Fixing bolts; 4. Grinding parts; 41. Filter elements; 42. First filter screen; 43. Fixing clips; 44. Movable plate; 45. Exhaust pipe; 46. Negative pressure fan; 47. Second filter screen; 5. Grinding plate; 6. Adjusting electric cylinder; 7. Clamping block; 71. Protective rubber pad; 72. Clamping electric cylinder; 73. Drive motor. 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] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 A grinding device for ferrite magnetic columns includes a housing 1, an upper mounting base 2 installed inside the housing 1, a fixing bolt 3 threadedly connected to the housing 1 installed inside the mounting base 2, a grinding mechanism for grinding workpieces provided on the upper surface of the mounting base 2, and a clamping mechanism for clamping workpieces provided above the grinding mechanism.

[0028] The grinding mechanism includes a grinding component 4, which is fixed on the upper surface of the mounting base 2. A filter component 41 is connected to the right side of the grinding component 4. A first filter screen 42 is installed inside the filter component 41. Fixed clips 43 that are inserted and connected to the filter component 41 are fixed at both ends of the first filter screen 42. A movable plate 44 that is movably connected to the filter component 41 is fixed on one side of the first filter screen 42. An exhaust pipe 45 is connected to the right side of the filter component 41. A negative pressure fan 46 is fixed inside the exhaust pipe 45 by screws. A second filter screen 47 that is fixedly connected to the exhaust pipe 45 is provided on the left side of the negative pressure fan 46. Two adjusting electric cylinders 6 are symmetrically arranged on the outer surface of the grinding component 4. The extension and retraction ends of the two adjusting electric cylinders 6 penetrate the inner wall of the grinding component 4 and are fixed with grinding plates 5.

[0029] By adopting the above technical solution, before using the ferrite magnetic column grinding equipment, the outer shell 1 of the equipment is first placed in a suitable position. The set adjustment cylinder 6 drives the grinding plate 5 to move, so that the two grinding plates 5 move towards the outer surface of the magnetic column. At this time, the inner wall of the grinding plate 5 and the outer wall of the magnetic column are in contact. When the magnetic column rotates, it can perform grinding operation on the outer surface of the magnetic column. Dust is generated when the magnetic column is ground. Through the negative pressure fan 46 set in the exhaust pipe 45, with the cooperation of the filter element 41, a negative pressure is generated inside the grinding element 4, which can draw the dust into the filter element 41. When the air passes through the first filter screen 42, it can filter the larger dust impurities in the air. Then, it passes through the second filter screen 47 to filter the smaller dust in the air. By manually pulling the movable plate 44 through the fixing strip 43 set on the first filter screen 42, the first filter screen 42 can be pulled out from the filter element 41 for easy cleaning and replacement. By unscrewing the fixing bolt 3, the mounting base 2 can be disassembled for easy maintenance.

[0030] Specifically, such as Figure 1 and Figure 2 As shown, the clamping mechanism includes clamping blocks 7, and there are two clamping blocks 7. Both clamping blocks 7 are placed above the grinding workpiece 4. Protective rubber pads 71 ​​are fixed inside both clamping blocks 7. Clamping electric cylinders 72 are fixed at the upper ends of both clamping blocks 7. A drive motor 73 that is bolted to the equipment housing 1 is fixed on the upper surface of the clamping electric cylinder 72.

[0031] By adopting the above technical solution, the magnetic column to be processed is placed between two clamping blocks 7. The clamping electric cylinder 72 can drive the two clamping blocks 7 to move closer to each other, thereby clamping and fixing the magnetic column. The protective rubber pad 71 can play an anti-slip role, thereby reducing the possibility of displacement when the magnetic column is clamped. The drive motor 73 can drive the clamping blocks 7 to rotate, thereby driving the magnetic column to rotate.

[0032] Working principle: The clamping electric cylinder 72 drives the two clamping blocks 7 to move closer together to clamp and fix the magnetic column. The drive motor 73 drives the clamping blocks 7 to rotate, which in turn drives the magnetic column to rotate. The mounting base 2 is equipped with a grinding component 4. The adjusting electric cylinder 6 drives the grinding plate 5 to move, so that the two grinding plates 5 move towards the outer surface of the magnetic column. At this time, the inner wall of the grinding plate 5 contacts the outer wall of the magnetic column, which can perform grinding operation on the outer surface of the magnetic column. Dust is generated when the magnetic column is ground. The negative pressure fan 46 installed in the exhaust pipe 45, with the cooperation of the filter element 41, creates a negative pressure inside the grinding component 4, which can draw the dust into the filter element 41. When the air passes through the first filter screen 42, it can filter the larger dust impurities in the air. Then, it passes through the second filter screen 47 to filter the smaller dust particles in the air. The first filter screen 42 can be pulled out from the filter element 41 by manually pulling the movable plate 44 through the fixing strip 43 set on the first filter screen 42.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A grinding device for ferrite magnetic columns, comprising a housing (1), characterized in that: An installation base (2) is installed at the upper end of the inside of the equipment housing (1). A fixing bolt (3) that is threadedly connected to the equipment housing (1) is installed inside the installation base (2). A grinding mechanism for grinding the workpiece is provided on the upper surface of the installation base (2). A clamping mechanism for clamping the workpiece is provided above the grinding mechanism. The grinding mechanism includes a grinding component (4), which is fixed to the upper surface of the mounting base (2). A filter element (41) is connected to the right side of the grinding component (4). A first filter screen (42) is installed inside the filter element (41). Both ends of the first filter screen (42) are fixed with fixing clips (43) that are inserted and connected to the filter element (41). Two adjusting electric cylinders (6) are symmetrically arranged on the outer surface of the grinding component (4). The extension and retraction of the two adjusting electric cylinders (6) Grinding plates (5) are fixed to the inner wall of the grinding workpiece (4) at both ends. The clamping mechanism includes clamping blocks (7). There are two clamping blocks (7). Both clamping blocks (7) are placed above the grinding workpiece (4). Protective rubber pads (71) are fixed inside the two clamping blocks (7). A clamping electric cylinder (72) is fixed at the upper end of the two clamping blocks (7). A drive motor (73) that is bolted to the equipment housing (1) is fixed on the upper surface of the clamping electric cylinder (72).

2. The grinding equipment for ferrite magnetic columns according to claim 1, characterized in that: The first filter screen (42) has a movable plate (44) fixed on one side that is movably connected to the filter element (41), and the filter element (41) has an exhaust pipe (45) connected to the right side.

3. The grinding equipment for ferrite magnetic columns according to claim 2, characterized in that: The exhaust pipe (45) is fitted with a negative pressure fan (46) by screws. A second filter screen (47) is fixedly connected to the exhaust pipe (45) on the left side of the negative pressure fan (46).