A replaceable soft abrasive sheet for polishing

Abstract

The application provides a soft grinding disc convenient to replace, which comprises a first grinding disc, a bearing disc connected to one side of the first grinding disc, a second grinding disc movably installed on the other side of the bearing disc, a plurality of uniformly distributed mounting holes provided on the bearing disc, a protruding part provided on the second grinding disc, the second grinding disc being movably installed on the bearing disc through cooperation of the protruding part and the mounting holes, and a grinding block provided on the second grinding disc, so that the second grinding disc can be flexibly replaced when the second grinding disc is worn or the polishing precision is adjusted, a recessed part provided on the first grinding disc, a polishing part movably installed on the recessed part, the polishing part comprising a polishing disc, the bottom of the polishing disc being provided with a mounting part, the polishing disc being located on the outside of the first grinding disc when the mounting part is embedded in the recessed part, so that the first grinding disc, the second grinding disc and the polishing disc can be used to polish workpieces with different polishing precisions according to actual needs, flexible mounting and dismounting operations can be performed, and the use flexibility is improved.

Description

Technical Field

[0001] This application relates to the field of soft abrasive disc technology, and more particularly to a soft abrasive disc for grinding that is easy to replace. Background Technology

[0002] Soft grinding discs are high-efficiency surface treatment tools made of a flexible substrate combined with abrasive particles. They are widely used for grinding materials such as stone, metal, ceramics, and concrete. However, the grinding precision of existing soft grinding discs is fixed and cannot be adjusted as needed. They cannot be quickly replaced during processing, resulting in low processing efficiency and slowing down the overall production pace. Utility Model Content

[0003] The purpose of this invention is to provide a replaceable soft grinding disc for polishing in order to solve the above-mentioned problems.

[0004] The technical solution of this application is implemented as follows: This application provides a replaceable soft grinding disc for polishing, including a first grinding disc, a support disc connected to one side of the first grinding disc, and a second grinding disc movably mounted on the other side of the support disc. A number of evenly distributed mounting holes are provided on one side of the support disc, and a protrusion is provided on the second grinding disc at the position corresponding to the mounting hole. The second grinding disc and the support disc are connected by inserting the protrusion into the mounting hole. A grinding block is provided on the side of the second grinding disc away from the protrusion. Several grinding blocks are provided and evenly distributed on the second grinding disc. The first grinding disc has a recessed portion, and a polishing component is movably mounted on the recessed portion. The polishing component includes a polishing disc, and the bottom of the polishing disc has a mounting portion. When the mounting portion is inserted into the recessed portion, the polishing disc is located on the outside of the first grinding disc. The first grinding disc, the carrier disc, the second grinding disc, and the polishing disc all have connection holes for connecting the driver.

[0005] In one embodiment, the recess is provided with two sets of symmetrically distributed protruding portions, each protruding portion having a groove, one end of which extends to the outside of the protruding portion. The outer periphery of the mounting part is provided with a limiting block that matches the slot. When the mounting part is located in the recess and rotates, the limiting block is inserted into or moved away from the slot.

[0006] In one embodiment, a number of guide grooves are provided on the second grinding disc and are spaced apart along the circumference of the second grinding disc. The guide groove is located between two adjacent sets of grinding blocks, and one end of the guide groove extends to the outside of the second grinding disc.

[0007] In one embodiment, the carrier disk has a buffer pad, and several buffer pads are provided and evenly distributed along the circumference of the carrier disk. When the carrier disk and the first grinding disk are connected, the buffer pads abut against the end face of the first grinding disk.

[0008] In one embodiment, the first grinding disc has abrasive grains, and the abrasive grains are arranged in a plurality and evenly distributed on the first grinding disc; When the polishing disc is located on the first polishing disc, it is positioned between several abrasive grains.

[0009] In one embodiment, a magnetic layer is provided inside the mounting hole, and a magnetic suction part matching the magnetic layer is provided on the protrusion. When the protrusion is inserted into the mounting hole, the second grinding disc is magnetically connected to the carrier plate through the cooperation of the magnetic suction part and the magnetic layer.

[0010] The advantages or beneficial effects of the above technical solutions include at least the following: This application discloses a replaceable soft grinding disc for polishing. A first grinding disc and a second grinding disc are respectively positioned on opposite sides of a support plate. When the soft grinding disc is connected to a driver, the first and second grinding discs face the workpiece for polishing. Since the second grinding disc is embedded in the mounting hole of the support plate via a protrusion, it can be replaced when worn or when a different polishing precision is required. Furthermore, after the second grinding disc has finished polishing, the soft grinding disc can be flipped so that the first grinding disc can polish the workpiece again, thereby improving the polishing precision. Additionally, since a polishing component is mounted on the first grinding disc via a recess, and this polishing component has a mounting portion embedded in the recess and connected to the polishing disc, when the polishing component is installed, the polishing disc first contacts the workpiece when the first grinding disc faces it, thus polishing the workpiece and allowing for further adjustments to the polishing precision. This addresses the limitations of existing soft grinding discs, which have a fixed polishing precision and cannot be replaced according to actual usage needs. Attached Figure Description

[0011] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the description thereof, serve to explain the principles of the present application. These drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification.

[0012] Figure 1 An exploded structural diagram of the soft grinding disc according to an embodiment of this application is shown; Figure 2 A schematic diagram of the structure of a soft grinding disc according to an embodiment of this application is shown; Figure 3 A structural schematic diagram of the second grinding disc according to an embodiment of this application is shown from one perspective; Figure 4 A structural schematic diagram of the first grinding disc according to an embodiment of this application is shown from one perspective; Figure 5 A partial cross-sectional structural diagram of the first grinding disc and the polishing component in an embodiment of this application is shown; Figure 6 A structural schematic diagram of the carrier disk from one perspective of an embodiment of this application is shown; Figure 7 Examples of this application are presented. Figure 1 Enlarged view of point A in the middle; Reference numerals: 1. First grinding disc; 11. Recess; 12. Protruding elongation; 121. Slot; 13. Abrasive grain; 2. Support plate; 21. Mounting hole; 211. Magnetic layer; 22. Buffer pad; 3. Second grinding disc; 31. Protrusion; 311. Magnetic suction part; 32. Grinding block; 33. Guide groove; 4. Polishing components; 41. Polishing disc; 42. Mounting part; 421. Limiting block. Detailed Implementation

[0013] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0014] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0015] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this application are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0016] It should be noted that the terms "a" and "several" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0017] The names of the messages or information exchanged between multiple devices in the embodiments of this application are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0018] Reference Figures 1-6 A replaceable soft grinding disc includes a first grinding disc 1, a support disc 2 connected to one side of the first grinding disc 1, and a second grinding disc 3 movably mounted on the other side of the support disc 2. Several evenly distributed mounting holes 21 are provided on one side of the support disc 2. A protrusion 31 is provided on the second grinding disc 3 at a position corresponding to the mounting holes 21. The second grinding disc 3 and the support disc 2 are connected by embedding the protrusion 31 into the mounting holes 21. This structure uses an embedded connection, so when installing the second grinding disc 3, no tools are needed; it can be fixed simply by aligning and inserting it. Disassembly is easy by gently pulling it apart, significantly shortening replacement time. Furthermore, the multiple mounting holes 21 enable multi-point even force distribution, preventing the force from being dispersed onto the support disc 2 through multiple protrusions 31 when the second grinding disc 3 is subjected to the reaction force of the workpiece during grinding. This avoids excessive local force causing the second grinding disc 3 to shift or wobble, ensuring a stable grinding trajectory and improving the surface smoothness of the workpiece. A grinding block 32 is provided on the side of the second grinding disc 3 away from the protrusion 31. Several grinding blocks 32 are provided and evenly distributed on the second grinding disc 3. The grinding blocks 32 are evenly distributed along the circumference of the second grinding disc 3. During grinding, the density of grinding blocks 32 in each area is consistent, so that the force is uniform at each point when the workpiece contacts the grinding disc, and the grinding efficiency is improved and the wear of a single grinding block 32 is reduced. The first grinding disc 1 has a recess 11, on which a polishing component 4 is movably mounted. The polishing component 4 is used to perform fine grinding on the workpiece. The polishing component 4 includes a polishing disc 41, and the bottom of the polishing disc 41 has a mounting part 42. When the mounting part 42 is inserted into the recess 11, the polishing disc 41 is located on the outside of the first grinding disc 1. In this structure, the polishing disc 41 is designed as an independent component, and the mounting part 42 is inserted into the recess 11 to achieve a movable connection. When the polishing disc 41 is worn, there is no need to disassemble the first grinding disc 1, the bearing disc 2, or other components. Only the old polishing component 4 needs to be taken out and the new component needs to be inserted, which reduces unnecessary disassembly and assembly steps, improves replacement efficiency, and after the mounting part 42 is inserted into the recess 11, the inner wall of the recess 11 forms a circumferential limit on the mounting part 42, ensuring the stability of the polishing disc 41 and avoiding grinding deviation. The first grinding disc 1, the bearing disc 2, the second grinding disc 3, and the polishing disc 41 all have connection holes for connecting to the driver. The second grinding disc 3 is used for rough machining of the workpiece, the first grinding disc 1 is used for the second grinding of the grinding disc, and the polishing disc 41 is used for the fine machining of the workpiece. The connection holes of all components are designed for the driver interface, and after connection, they fit tightly without any loose gaps, reducing the possibility of slippage or detachment between the components and the driver during grinding, avoiding equipment damage or operator injury due to looseness, and improving safety during use.

[0019] Based on the above structure, by placing the first grinding disc 1 and the second grinding disc 3 on both sides of the support plate 2, the first grinding disc 1 or the second grinding disc 3 can be installed via a driver according to actual usage needs, so that the first grinding disc 1 or the second grinding disc 3 is positioned on the side facing the workpiece for grinding operations. Since the second grinding disc 3 is connected to the mounting hole 21 of the support plate 2 through the protrusion 31, the second grinding disc 3 can be disassembled and replaced when it wears to a certain extent. When the initial grinding of the workpiece is completed, the first grinding disc 1 can be disassembled and flipped to grind the workpiece again, thereby further improving the grinding accuracy of the workpiece, and the second grinding disc 3 can be installed via a driver. A polishing component 4 is mounted on a grinding disc 1 through a recess 11. When the mounting part 42 on the polishing disc 41 is inserted into the recess 11, the polishing disc 41 can contact the workpiece, thereby completing the fine machining operation of the workpiece. The polishing component 4 can be replaced according to the frequency of use. Through the cooperation of the first grinding disc 1, the second grinding disc 3 and the polishing component 4, different grinding precision operations can be achieved on the soft grinding disc, thereby improving the flexibility of product use. It can also be flexibly disassembled and replaced according to the processing situation, solving the problem that the existing soft grinding discs have fixed grinding precision, resulting in limited use.

[0020] In one embodiment, reference is made to Figure 1 , Figure 4 and Figure 5 The recessed portion 11 is provided with two sets of symmetrically distributed protruding portions 12. The protruding portions 12 have a groove 121. One end of the groove 121 extends to the outside of the protruding portion 12. By setting the groove 121, the protruding portion 12 forms a structure with one end open. The outer periphery of the mounting part 42 is provided with a limiting block 421 that matches the slot 121. The protruding extension 12 and the limiting block 421 form a rotating engaging connection. When the mounting part 42 is located in the recess 11 and rotates, the limiting block 421 is inserted into or moved away from the slot 121. When it is necessary to install the polishing disc 41, the mounting part 42 is first placed into the recess 11 of the first polishing disc 1, and then the mounting part 42 is rotated. At this time, the limiting block 421 on the outer periphery of the mounting part 42 will slide along the inner wall of the recess 11 and finally be inserted into the slot 121 of the protruding extension 12 to fix the two. When it is necessary to replace the polishing disc 41, the mounting part 42 is rotated in the opposite direction to make the limiting block 421 slide out of the slot 121 and move away from the slot 121, so that the old polishing disc 41 can be quickly removed.

[0021] In one embodiment, reference is made to Figure 1 and Figure 3 The second grinding disc 3 is provided with a flow guide groove 33. Several flow guide grooves 33 are provided and are distributed at intervals along the circumference of the second grinding disc 3. The arrangement of several flow guide grooves 33 can realize flow splitting operation in different directions. The guide groove 33 is located between two adjacent sets of grinding blocks 32. One end of the guide groove 33 extends to the outside of the second grinding disc 3. During the grinding process, the grinding blocks 32 of the second grinding disc 3 come into contact with the workpiece to be ground, which will produce debris such as metal chips and stone chips. If coolant is used, a mixture of debris and coolant will also be produced. These impurities will naturally fall into the guide groove 33 between the adjacent grinding blocks 32, and then be discharged from the center of the disc to the outer periphery of the disc along the inclined extension direction of the guide groove 33 to the outside of the second grinding disc 3, so as to avoid the accumulation of impurities affecting the grinding effect.

[0022] In one embodiment, reference is made to Figure 1 and Figure 7 The bearing plate 2 has a buffer pad 22. The bearing plate 2 can be connected to the first grinding plate 1 by means of the buffer pad 22. The buffer pad 22 is made of sponge or rubber. Several buffer pads 22 are set and evenly distributed along the circumference of the bearing plate 2. When the bearing plate 2 and the first grinding plate 1 are connected, the buffer pad 22 abuts against the end face of the first grinding plate 1. During grinding, the pressure and vibration transmitted by the equipment will first act on the bearing plate 2, and then be absorbed and dispersed by the buffer pad 22 before being transmitted to the first grinding plate 1. This avoids direct hard contact between the two, thereby buffering the pressure and vibration during the grinding process, protecting the grinding plate structure and improving the grinding accuracy. In addition, the evenly distributed buffer pad 22 ensures that the pressure is evenly transmitted along the plate surface, avoiding uneven grinding surface caused by excessive local pressure, and improving the stability of grinding quality.

[0023] In one embodiment, reference is made to Figure 1 , Figure 2 and Figure 4 The first grinding disc 1 has abrasive grains 13. Several abrasive grains 13 are evenly distributed on the first grinding disc 1. When the polishing disc 41 is located on the first grinding disc 1, the polishing disc 41 is located between several abrasive grains 13. During the polishing process, the polishing disc 41 is mainly responsible for the main polishing, while the evenly distributed abrasive grains 13 can perform secondary polishing on the surface of the workpiece, filling the fine gaps in the polishing disc 41. In addition, the abrasive grains 13 are equivalent to positioning protrusions. After the polishing disc 41 is installed, it is restricted between the abrasive grains 13 to prevent the polishing disc 41 from shifting due to vibration during polishing.

[0024] In one embodiment, reference is made to Figure 1 , Figure 6 and Figure 7A magnetic layer 211 is provided inside the mounting hole 21, and a magnetic suction part 311 matching the magnetic layer 211 is provided on the protrusion 31. The magnetic poles between the magnetic layer 211 and the magnetic suction part 311 attract each other. When the protrusion 31 is inserted into the mounting hole 21, the second grinding disc 3 is magnetically connected to the carrier plate 2 through the cooperation of the magnetic suction part 311 and the magnetic layer 211. When the second grinding disc 3 needs to be installed, its protrusion 31 is aligned with the mounting hole 21 of the carrier plate 2 and inserted. At this time, the magnetic layer 211 in the mounting hole 21 and the magnetic suction part 311 on the protrusion 31 generate a magnetic attraction force, which directly and firmly attracts the second grinding disc 3 to the carrier plate 2, completing the fixation. When the second grinding disc 3 needs to be replaced, only an external force greater than the magnetic attraction force needs to be applied to separate the protrusion 31 from the mounting hole 21, further strengthening the core requirement of easy replacement.

[0025] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] Those skilled in the art should understand that the above embodiments are merely for illustrative purposes and are not intended to limit the scope of this application. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of this application.

Claims

1. A replaceable soft abrasive sheet for polishing, characterized by: The first grinding disc is connected to a support disc on one side, and a second grinding disc is movably mounted on the other side of the support disc. The support disc has several evenly distributed mounting holes on one side, and the second grinding disc has a protrusion at the position corresponding to the mounting holes. The second grinding disc and the support disc are connected by inserting the protrusion into the mounting hole. A grinding block is provided on the side of the second grinding disc away from the protrusion, and several grinding blocks are provided and evenly distributed on the second grinding disc; The first grinding disc has a recessed portion, and a polishing component is movably mounted on the recessed portion. The polishing component includes a polishing disc, and the bottom of the polishing disc has a mounting portion. When the mounting portion is inserted into the recessed portion, the polishing disc is located on the outside of the first grinding disc. The first grinding disc, the bearing disc, the second grinding disc, and the polishing disc all have connection holes for connecting to the driver.

2. The replaceable soft grinding disc according to claim 1, characterized in that: The recessed portion is provided with two sets of symmetrically distributed protruding portions, each protruding portion having a groove, one end of which extends to the outside of the protruding portion. The outer periphery of the mounting part is provided with a limiting block that matches the slot. When the mounting part is located in the recess and rotates, the limiting block is inserted into or moved away from the slot.

3. The easily replaceable soft grinding disc according to claim 1, characterized in that: The second grinding disc is provided with a number of guide grooves, which are spaced apart along the circumference of the second grinding disc. The guide groove is located between two adjacent sets of grinding blocks, and one end of the guide groove extends to the outside of the second grinding disc.

4. The replaceable soft grinding disc according to claim 1, characterized in that: The bearing plate has a buffer pad, and several buffer pads are provided and evenly distributed along the circumference of the bearing plate. When the bearing plate and the first grinding plate are connected, the buffer pads abut against the end face of the first grinding plate.

5. The replaceable soft grinding disc according to claim 1, characterized in that: The first grinding disc has abrasive grains, and the abrasive grains are arranged in a plurality and evenly distributed on the first grinding disc; When the polishing disc is located on the first polishing disc, the polishing disc is positioned between several abrasive grains.

6. The easily replaceable soft grinding disc according to claim 1, characterized in that: A magnetic layer is provided inside the mounting hole, and a magnetic suction part matching the magnetic layer is provided on the protrusion. When the protrusion is inserted into the mounting hole, the second grinding disc is magnetically connected to the carrier plate through the cooperation of the magnetic suction part and the magnetic layer.

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