Resin polishing disc for magnetic material polishing

Abstract

The utility model relates to resin grinding disc technical field discloses a resin grinding disc for magnetic material polishing, including resin grinding disc main part, the inner side wall fixed connection of resin grinding disc main part has the center disc, the end of center disc is symmetrically penetrated from top to bottom and is provided with four positioning holes, the user can first detach the protection mechanism from the surface of center disc, then rotates extruding bolt, the end of extruding bolt no longer extrudes the elastic cross steel at this moment, and four end portions of elastic cross steel will drive four insertion strips to move, four insertion strips are withdrawn to the inside of spacing chuck at this moment, and the insertion strip no longer enters the inside of insertion hole, then the spacing chuck can be detached from the top end of center disc, through this way can effectively realize the split of resin grinding disc main part and spacing mechanism, just need to replace resin grinding disc main part, can reduce the metal matrix required.

Description

Technical Field

[0001] This utility model relates to the field of resin grinding disc technology, specifically to a resin grinding disc for grinding magnetic materials. Background Technology

[0002] Resin grinding discs are industrial tools commonly used for grinding and polishing. They are widely used in the surface treatment of materials such as metals, ceramics, glass, and stone. Most existing resin grinding discs are made of a mixture of resin matrix and abrasive particles, which have good wear resistance and a certain degree of elasticity, enabling them to uniformly remove impurities or irregular layers from the surface of the workpiece during the processing.

[0003] In the prior art, when the surface coating of the resin grinding disc body is gradually worn away after long-term grinding use, and the grinding performance drops significantly until it can no longer meet the processing requirements, the metal substrate is tightly connected to the resin grinding disc body, making it impossible to replace the resin grinding disc body separately. At this time, the entire resin grinding disc must be replaced as a whole, which results in the waste of the metal substrate. The metal substrate itself has a certain cost, and its manufacturing process also consumes certain resources and energy. Moreover, the replacement of the integrated structure is relatively complicated, requiring more time and manpower, thus reducing production efficiency. Therefore, those skilled in the art provide a resin grinding disc for grinding magnetic materials to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a resin grinding disc for grinding magnetic materials, thereby solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a resin grinding disc for grinding magnetic materials, comprising a resin grinding disc body, a central disc fixedly connected to the inner side wall of the resin grinding disc body, four positioning holes symmetrically opened from top to bottom at the end of the central disc, a limiting mechanism for limiting the resin grinding disc body provided on the inner side wall of the central disc, a protective mechanism for protecting the limiting mechanism provided inside the resin grinding disc body above the limiting mechanism, and twelve external grooves opened at both the upper and lower ends of the resin grinding disc body, the twelve external grooves at the upper and lower ends of the resin grinding disc body being in opposite positions.

[0006] Preferably, the limiting mechanism includes a limiting chuck, and four toothed disc seats are fixedly connected to the outer side wall of the limiting chuck in a ring array. An elastic cross steel is provided at the center of the inner bottom end of the limiting chuck. The elastic cross steel can undergo elastic change, and the center position of the elastic cross steel remains unchanged when it elastically changes. Four guide grooves are provided through the edge of the inner side wall of the limiting chuck, and each guide groove is located between every two toothed disc seats.

[0007] Preferably, the inner sidewall of the limiting chuck is slidably fitted with a connector strip at the position of the guide groove, the four ends of the elastic cross steel are hinged to the end of each connector strip, and the upper top of the limiting chuck is threadedly connected with a compression bolt above the elastic cross steel, the end of the compression bolt abutting against the upper top of the elastic cross steel.

[0008] Preferably, the inner sidewall of the central disk has four insertion holes arranged in a ring array to engage with the insertion strip, and the top of the central disk has four positioning tooth grooves arranged in a ring array, with the toothed disk seat engaging with the positioning tooth grooves.

[0009] Preferably, the protective mechanism includes a second connecting plate, four positioning rods are symmetrically fixedly connected to the upper top of the second connecting plate, and four threaded seats are symmetrically fixedly connected inside the second connecting plate, with each pair of threaded seats located between two positioning rods.

[0010] Preferably, a first connecting plate is provided inside the resin grinding disc body above the limiting mechanism. Four positioning bolts are symmetrically threaded to the top of the first connecting plate, and the four positioning bolts are threaded to the contact surface of the central disc. The end of each positioning bolt extends into the interior of the threaded seat, and the end of the positioning bolt is threaded to the threaded seat.

[0011] Preferably, the end of the positioning rod away from the second connecting plate is slidably sleeved with the positioning hole, and the positioning rod extends to the top of the first connecting plate. The bottom end of the central plate is symmetrically provided with four inner grooves, and the protruding ends of the four threaded seats are located inside the four inner grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention, by incorporating a protective mechanism and a limiting mechanism, allows the user to remove the protective mechanism from the surface of the central disc after the surface coating of the resin grinding disc body has worn away and become unusable. Then, by rotating the compression bolt, the end of the compression bolt ceases to compress the elastic cross steel, while the four ends of the elastic cross steel move the four connecting strips. The four connecting strips retract into the limiting chuck and no longer enter the connecting holes. The limiting chuck can then be removed from the top of the central disc. This method effectively separates the resin grinding disc body from the limiting mechanism, requiring only the replacement of the resin grinding disc body. This reduces the required metal substrate and avoids the need for complete replacement of the entire metal substrate when the resin grinding disc body becomes unusable, as is common in existing technologies where the metal substrate and resin grinding disc body are integrated. This improves the usability of the metal substrate. Attached Figure Description

[0013] Figure 1A schematic diagram of the overall structure of a resin grinding disc for polishing magnetic materials; Figure 2 A schematic diagram showing the overall disassembled structure of a resin grinding disc for polishing magnetic materials; Figure 3 A schematic diagram showing the segmented structure of a limiting chuck in a resin grinding disc for polishing magnetic materials; Figure 4 A schematic diagram of the top of the resin grinding disc body in a resin grinding disc for polishing magnetic materials; Figure 5 This is a schematic diagram of the structure at the bottom of the resin grinding disc body in a resin grinding disc used for polishing magnetic materials.

[0014] In the diagram: 1. Resin grinding disc body; 2. Protective mechanism; 21. First connecting disc; 22. Positioning bolt; 23. Second connecting disc; 24. Threaded seat; 25. Positioning rod; 3. Limiting mechanism; 31. Limiting chuck; 32. Gear disc seat; 33. Guide groove; 34. Insertion strip; 35. Elastic cross steel; 36. Extrusion bolt; 37. Positioning tooth groove; 38. Insertion hole; 4. Center disc; 5. Positioning hole; 6. Inner groove. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a resin grinding disc for grinding magnetic materials, including a resin grinding disc body 1, a central disc 4 fixedly connected to the inner wall of the resin grinding disc body 1, four positioning holes 5 symmetrically opened from top to bottom at the end of the central disc 4, a limiting mechanism 3 for limiting the resin grinding disc body 1 is provided on the inner wall of the central disc 4, a protective mechanism 2 for protecting the limiting mechanism 3 is provided inside the resin grinding disc body 1 above the limiting mechanism 3, and twelve outer grooves are opened at both the upper and lower ends of the resin grinding disc body 1, with the twelve outer grooves at the upper and lower ends of the resin grinding disc body 1 in opposite positions.

[0017] It should be noted that the limiting mechanism 3 is located on the inner side wall of the central disk 4, which can reliably limit the resin grinding disc body 1, preventing it from shifting during high-speed rotation grinding, further ensuring the stability of grinding, and extending the service life of the grinding disc. The protective mechanism 2 is located inside the resin grinding disc body 1 and above the limiting mechanism 3, which can effectively protect the limiting mechanism 3, preventing grinding debris and dust from entering the limiting mechanism 3 and affecting its normal operation, thus reducing maintenance costs. The 12 outer grooves opened at the upper and lower ends of the resin grinding disc body 1, with the outer grooves at the upper and lower ends in opposite positions, this unique design increases the contact area and friction between the grinding disc and the magnetic material, making grinding more efficient, and also facilitating heat dissipation and chip removal.

[0018] As one implementation method in this embodiment, please refer to Figure 3 - Figure 5 As shown, the limiting mechanism 3 includes a limiting chuck 31. Four toothed disc seats 32 are fixedly connected to the outer wall of the limiting chuck 31 in a ring array. A spring-loaded cross steel 35 is provided at the center of the inner bottom end of the limiting chuck 31. The spring-loaded cross steel 35 can undergo elastic deformation, and its center position remains unchanged during elastic deformation. Four guide grooves 33 are formed through the inner sidewall edge of the limiting chuck 31. Each guide groove 33 is located between every two toothed disc seats 32. The inner sidewall of the limiting chuck 31 slides within the guide grooves 33. The movable sleeve is connected with a plug strip 34. The four ends of the elastic cross steel 35 are hinged to the ends of each plug strip 34. The upper top of the limiting chuck 31 is located above the elastic cross steel 35 and is threaded with a compression bolt 36. The end of the compression bolt 36 abuts against the upper top of the elastic cross steel 35. The inner side wall of the center disc 4 has four plug holes 38 arranged in an annular array to engage with the plug strip 34. The upper top of the center disc 4 has four positioning tooth grooves 37 arranged in an annular array. The toothed disc seat 32 engages with the positioning tooth grooves 37.

[0019] It should be noted that the four toothed disc seats 32 of the annular array on the outer wall of the limiting chuck 31 can engage with the four positioning toothed grooves 37 of the annular array on the top of the central disc 4 for precise positioning and quick initial fixation of the limiting chuck 31 and the central disc 4, preventing relative rotation between the two. The elastic cross steel 35 is located at the center of the bottom end of the limiting chuck 31, which can be elastically deformed and its center position remains unchanged. Its four ends are hinged to the ends of the four insertion strips 34 that are slidably sleeved in the guide groove 33. By rotating the compression bolt 36, its end abuts against the top of the elastic cross steel 35, causing the elastic cross steel 35 to undergo elastic deformation, which drives the insertion strips 34 to slide in the guide groove 33, thereby allowing the insertion strips 34 to be inserted into the four insertion holes 38 of the annular array on the inner wall of the central disc 4, realizing a stable connection between the limiting chuck 31 and the central disc 4, and effectively preventing axial displacement of the resin grinding disc body 1 during grinding.

[0020] As one implementation method in this embodiment, please refer to Figure 2 - Figure 4 As shown, the protective mechanism 2 includes a second connecting plate 23. Four positioning rods 25 are symmetrically fixedly connected to the top of the second connecting plate 23. Four threaded seats 24 are symmetrically fixedly connected inside the second connecting plate 23. Each pair of threaded seats 24 is located between two positioning rods 25. A first connecting plate 21 is provided inside the resin grinding disc body 1 above the limiting mechanism 3. Four positioning bolts 22 are symmetrically threaded to the top of the first connecting plate 21. The four positioning bolts 22 are threadedly connected to the contact surface of the central disc 4. The end of each positioning bolt 22 extends into the interior of the threaded seat 24. The end of the positioning bolt 22 is threadedly connected to the threaded seat 24.

[0021] It should be noted that the four positioning rods 25 symmetrically fixed at the top of the second connecting plate 23 can play a precise positioning role. When installing the protective mechanism 2, it can quickly determine its relative position with the resin grinding disc body 1, ensuring the accuracy of installation. The four positioning bolts 22 symmetrically threaded at the top of the first connecting plate 21 are not only threaded to the contact surface of the center disc 4, but their ends also extend into the threaded seat 24 and are threaded to it. The double threaded connection method makes the protective mechanism 2 more firmly connected to the resin grinding disc body 1 and the center disc 4, which can effectively resist the vibration and impact generated during the grinding process and prevent the protective mechanism 2 from loosening and falling off. At the same time, the protective mechanism 2 encloses the limiting mechanism 3, which can prevent the debris and dust generated during grinding from entering the limiting mechanism 3.

[0022] As one implementation method in this embodiment, please refer to Figure 2 - Figure 4 As shown, the end of the positioning rod 25 away from the second connecting plate 23 is slidably sleeved with the positioning hole 5, and the positioning rod 25 extends to the upper top of the first connecting plate 21. The bottom end of the center plate 4 is symmetrically provided with four inner grooves 6, and the protruding ends of the four threaded seats 24 are located inside the four inner grooves 6.

[0023] It should be noted that when installing the protective mechanism 2, the positioning rod 25 can be quickly and accurately inserted into the positioning hole 5, so that the second connecting plate 23 and the center plate 4 can quickly find their relative positions, avoiding positional deviations during installation, greatly improving installation efficiency, and ensuring that the protective mechanism 2 can accurately cover the limiting mechanism 3. The protruding end of the threaded seat 24 is embedded in the inner groove 6, which further enhances the connection stability between the protective mechanism 2 and the center plate 4. When the resin grinding disc rotates at high speed to grind the magnetic material, it can effectively resist the vibration and shaking caused by centrifugal force, prevent the protective mechanism 2 from loosening and shifting, and thus continuously provide reliable protection for the limiting mechanism 3, blocking the debris, dust and other materials generated during grinding from entering the interior of the limiting mechanism 3.

[0024] Working principle: When the surface coating of the resin grinding disc body 1 is worn away and can no longer be used, the protective mechanism 2 is disassembled first. Because the four positioning rods 25 symmetrically fixed at the top of the second connecting disc 23 are slidably sleeved with the four positioning holes 5 symmetrically opened from top to bottom at the end of the center disc 4 and extend to the top of the first connecting disc 21, and the four positioning bolts 22 symmetrically threaded at the top of the first connecting disc 21 are threadedly connected to the contact surface of the center disc 4, and the ends also extend into the four threaded seats 24 symmetrically fixed inside the second connecting disc 23 and are threadedly connected. The protruding ends of the threaded seats 24 are located in the four inner grooves 6 symmetrically opened at the bottom of the center disc 4. Therefore, the protective mechanism 2 can be disassembled from the surface of the center disc 4 by simply unscrewing the positioning bolts 22 in sequence. Next, the compression bolt 36, which is threaded above the elastic cross steel 35 at the top of the rotating limit chuck 31, is no longer pressing the elastic cross steel 35. The elastic cross steel 35 undergoes elastic change, and the four ends drive the four insertion strips 34, which are slidably sleeved in the guide groove 33 on the inner side wall of the limit chuck 31, to move. This causes the insertion strips 34 to retract into the limit chuck 31 and no longer enter the four insertion holes 38 in the annular array on the inner side wall of the center disk 4. At the same time, the engagement between the four toothed disc seats 32 fixed in the annular array on the outer side wall of the limit chuck 31 and the four positioning toothed grooves 37 in the annular array at the top of the center disk 4 is released. Thus, the limit chuck 31 can be disassembled from the top of the center disk 4, realizing the separation of the resin grinding disc body 1 from the limit mechanism 3. This method only requires replacing the resin grinding disc body 1, reducing the required metal substrate and avoiding the problem in the prior art where the metal substrate and resin grinding disc body 1 are an integral structure that requires the entire body to be replaced when the resin grinding disc body 1 cannot be used for grinding, thus improving the utilization efficiency of the metal substrate.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A resin grinding disc for polishing magnetic materials, comprising a resin grinding disc body (1), characterized in that: A central disc (4) is fixedly connected to the inner wall of the resin grinding disc body (1). Four positioning holes (5) are symmetrically opened from top to bottom at the end of the central disc (4). A limiting mechanism (3) for limiting the resin grinding disc body (1) is provided on the inner wall of the central disc (4). A protective mechanism (2) for protecting the limiting mechanism (3) is provided inside the resin grinding disc body (1) above the limiting mechanism (3). Twelve outer grooves are opened at both the upper and lower ends of the resin grinding disc body (1). The twelve outer grooves at the upper and lower ends of the resin grinding disc body (1) are in opposite positions.

2. The resin grinding disc for polishing magnetic materials according to claim 1, characterized in that: The limiting mechanism (3) includes a limiting chuck (31). Four toothed disc seats (32) are fixedly connected to the outer side wall of the limiting chuck (31) in a ring array. An elastic cross steel (35) is provided at the center of the inner bottom end of the limiting chuck (31). The elastic cross steel (35) can undergo elastic changes, and the center position remains unchanged when the elastic cross steel (35) is elastically deformed. Four guide grooves (33) are provided through the inner side wall edge of the limiting chuck (31). Each guide groove (33) is located between every two toothed disc seats (32).

3. The resin grinding disc for polishing magnetic materials according to claim 2, characterized in that: The inner wall of the limiting chuck (31) is slidably fitted with a connector strip (34) at the position of the guide groove (33). The four ends of the elastic cross steel (35) are hinged to the ends of each connector strip (34). The upper top of the limiting chuck (31) is threaded with a compression bolt (36) above the elastic cross steel (35). The end of the compression bolt (36) abuts against the upper top of the elastic cross steel (35).

4. The resin grinding disc for polishing magnetic materials according to claim 3, characterized in that: The inner sidewall of the central disk (4) is provided with four insertion holes (38) that are connected to the insertion strip (34) in an annular array. The upper top of the central disk (4) is provided with four positioning tooth grooves (37) in an annular array. The toothed disk seat (32) engages with the positioning tooth grooves (37).

5. The resin grinding disc for polishing magnetic materials according to claim 1, characterized in that: The protective mechanism (2) includes a second connecting plate (23), four positioning rods (25) are symmetrically fixedly connected to the top end of the second connecting plate (23), and four threaded seats (24) are symmetrically fixedly connected inside the second connecting plate (23), with each pair of threaded seats (24) located between two positioning rods (25).

6. The resin grinding disc for polishing magnetic materials according to claim 5, characterized in that: The resin grinding disc body (1) is provided with a first connecting disc (21) above the limiting mechanism (3). The top end of the first connecting disc (21) is symmetrically threaded with four positioning bolts (22), and the four positioning bolts (22) are threadedly connected to the contact surface of the central disc (4). The end of each positioning bolt (22) extends into the interior of the threaded seat (24), and the end of the positioning bolt (22) is threadedly connected to the threaded seat (24).

7. A resin grinding disc for polishing magnetic materials according to claim 5, characterized in that: The end of the positioning rod (25) away from the second connecting plate (23) is slidably sleeved with the positioning hole (5), and the positioning rod (25) extends to the upper top of the first connecting plate (21). The bottom of the center plate (4) is symmetrically provided with four inner grooves (6), and the protruding ends of the four threaded seats (24) are located inside the four inner grooves (6).

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