Grinding and polishing components and equipment

Abstract

This invention discloses a polishing assembly and a polishing device. The polishing assembly includes a connecting plate, a polishing plate, and a connecting component. The connecting plate has multiple mounting portions and multiple first clearance holes, each corresponding to one of the first clearance holes. The first clearance holes extend along the thickness direction of the connecting plate. The mounting portions are located on the top surface of the connecting plate and close to the first clearance holes, and each mounting portion has a first aperture. The polishing plate has multiple connecting portions, each corresponding to one of the first clearance holes, and each connecting portion has a second aperture. Each connecting portion passes through its corresponding first clearance hole, and the connecting component passes through both the second and first apertures to detachably connect the polishing plate to the connecting plate. The polishing assembly and device provided in this application can solve the problems of cumbersome assembly and disassembly processes, low efficiency, and thread stripping failure of polishing plates in the prior art.

Description

Technical Field

[0001] This invention relates to the field of workpiece grinding and polishing technology, and more specifically, to a grinding and polishing assembly and a grinding and polishing device. Background Technology

[0002] In the prior art, the grinding and polishing components of the grinding and polishing device are mainly fixed to the connecting plate by screws. The disassembly and assembly process is cumbersome and inefficient. Moreover, repeated disassembly and assembly can easily lead to stripping and failure of the threads on the polishing plate fixing plate. Summary of the Invention

[0003] The main objective of this invention is to provide a polishing component and polishing device that at least solves the problems of cumbersome assembly and disassembly of polishing discs, low efficiency, and thread stripping failure in the prior art.

[0004] According to one aspect of the present invention, a polishing assembly is provided, comprising:

[0005] A connecting plate is provided with a plurality of mounting parts and a plurality of first clearance holes. The plurality of mounting parts and the plurality of first clearance holes are provided in a one-to-one correspondence. The first clearance holes are provided through the thickness direction of the connecting plate. The mounting parts are provided on the top surface of the connecting plate and close to the first clearance holes. Each mounting part is provided with a first light hole.

[0006] A polishing disc, wherein a plurality of connecting portions are provided on the polishing disc, and the connecting portions are provided in a one-to-one correspondence with the first clearance holes, and each of the connecting portions is provided with a second light hole;

[0007] A connecting component, wherein each of the connecting parts passes through the corresponding first clearance hole, and the connecting component passes through the second light hole and the first light hole in sequence to detachably connect the polishing disk to the connecting disk.

[0008] Furthermore, the second optical aperture includes an elongated hole that extends along the thickness direction of the connecting disk, and the connecting assembly is clearance-fitted with the elongated hole.

[0009] Furthermore, a limiting step is provided within the first optical aperture, and the connecting component includes:

[0010] A pin sleeve is detachably connected to the first optical hole. A first through hole is provided on the axis of the pin sleeve, and a second clearance hole is provided on the inner wall surface of the first through hole.

[0011] A locking member is disposed in the second clearance hole. The locking member has at least a portion protruding from the outer surface of the pin sleeve and stopping at the limiting step in a first position and a second position retracted to the inner side of the second clearance hole.

[0012] A pin is provided, which passes through the first through hole and can move along the axial direction of the first through hole. A pushing part is provided on the pin. The pin moves along the axial direction of the first through hole so that the pushing part pushes the locking member to switch from the first position to the second position.

[0013] Furthermore, the inner wall surface of the first end of the first through hole is provided with an inner flange, and the connecting assembly further includes:

[0014] An elastic element is disposed inside the pin sleeve and sleeved on the outer periphery of the pin shaft, with both ends of the elastic element abutting against the inner flange and the pushing part, respectively.

[0015] Wherein, the pin is subjected to external force to overcome the elastic force of the elastic element, thereby driving the pushing part to push the locking part to switch from the first position to the second position, and the pin is subjected to the elastic force of the elastic element to drive the pushing part to push the locking part to switch from the second position to the first position.

[0016] Furthermore, the pin is provided with an outer flange, the inner wall surface of the second end of the first through hole is provided with a thread, and the connecting assembly also includes a nut, which is installed in the first through hole through the thread and stops the outer flange away from the inner flange.

[0017] Furthermore, the polishing assembly further includes a first rolling member disposed on the mounting portion and / or the connecting portion, wherein the surfaces of the connecting portion and the mounting portion facing each other are in contact through the first rolling member; and / or,

[0018] Along the rotation direction of the polishing disc, the connecting portion has a first side and a second side in sequence, and the polishing assembly further includes a second rolling component: the second rolling component is disposed on the mounting portion and / or the connecting portion, and the first side and the mounting portion are in contact through the second rolling component.

[0019] Furthermore, both the first rolling component and the second rolling component include a rolling bearing, a retaining pin, and a retaining ring; wherein,

[0020] The retaining ring is disposed between the rolling bearing and the mounting portion, and the fixing pin passes through the rolling bearing and the retaining ring and is fixed to the mounting portion; or...

[0021] The retaining ring is disposed between the rolling bearing and the connecting part, and the fixing pin passes through the rolling bearing and the retaining ring and is fixed on the connecting part.

[0022] Furthermore, the mounting portion includes at least three, and the at least three mounting portions are arranged at intervals along the circumference of the connecting disk. The connecting portion includes at least three, and the at least three connecting portions are arranged at intervals along the circumference of the polishing disk.

[0023] Furthermore, the polishing assembly also includes a stop plate, which is disposed on the connecting assembly and located on the side of the connecting portion opposite to the mounting portion. The maximum width of the stop plate is greater than the maximum width of the second aperture; and / or,

[0024] The polishing assembly also includes a connector that connects the connecting assembly to the mounting portion.

[0025] On the other hand, this application also provides a polishing apparatus, which includes the above-mentioned polishing components.

[0026] In this invention, multiple mounting portions and multiple first clearance holes are provided on the connecting plate, and multiple connecting portions are provided on the polishing plate, with each mounting portion, first clearance hole, and connecting portion corresponding to the others. A first optical hole is provided on the mounting portion, and a second optical hole is provided on the connecting portion. The connecting portion passes through the corresponding first clearance hole, and a connecting component is sequentially passed through the second optical hole and the first optical hole to detachably connect the polishing plate to the connecting plate. This design simplifies the assembly and disassembly process of the connecting plate and polishing plate, improves replacement efficiency, and avoids thread stripping failure caused by continuous polishing plate replacement over a long period. Attached Figure Description

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 This is a top view of the polishing assembly disclosed in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall structure of the polishing assembly disclosed in an embodiment of the present invention;

[0030] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0031] Figure 4 for Figure 3 A sectional view;

[0032] Figure 5 This is a cross-sectional view of the first rolling component of the polishing assembly disclosed in an embodiment of the present invention;

[0033] Figure 6This is a cross-sectional view of the second rolling component of the polishing assembly disclosed in an embodiment of the present invention;

[0034] Figure 7 This is a cross-sectional view of the polishing assembly disclosed in an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the installation structure of the second rolling component of the grinding and polishing assembly disclosed in an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the installation structure of the first rolling component of the polishing assembly disclosed in an embodiment of the present invention.

[0037] The above figures include the following reference numerals:

[0038] 10. Connecting disc; 11. Mounting part; 111. First aperture; 1111. Limiting step; 112. Second connecting hole; 12. First clearance hole; 13. Reinforcing rib; 14. Drain hole; 20. Polishing disc; 21. Connecting part; 211. Second aperture; 212. First side surface; 213. Second side surface; 30. Connecting assembly; 31. Pin sleeve; 311. First through hole; 3111. Second clearance hole; 3112. Inner flange; 32. Locking element; 33. Pin shaft; 331. Pushing part; 332. Outer flange; 34. Elastic element; 35. Nut; 40. First rolling component; 41. Rolling bearing; 42. Fixing pin; 43. Retaining ring; 44. Screw; 50. Second rolling component; 60. Stop plate; 61. First connecting hole; 70. Fastener. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0042] As mentioned in the background section, in the prior art, the grinding and polishing components of the grinding and polishing device are mainly fixed to the connecting plate using screws. This process is cumbersome and inefficient, and repeated disassembly and reassembly can easily lead to stripping and failure of the threads on the polishing plate fixing plate. Therefore, this application provides a grinding and polishing component and a grinding and polishing device, which can at least solve the problems existing in the prior art grinding and polishing devices. The grinding and polishing component of this application will be described in detail below with reference to the accompanying drawings.

[0043] like Figures 1 to 9 As shown, according to an embodiment of this application, a polishing assembly is provided, which includes a connecting disc 10, a polishing disc 20, and a connecting component 30.

[0044] Specifically, the connecting disk 10 is provided with a plurality of mounting portions 11 and a plurality of first clearance holes 12. The plurality of mounting portions 11 are provided in a one-to-one correspondence with the plurality of first clearance holes 12. The first clearance holes 12 are provided through the thickness direction of the connecting disk 10. The mounting portions 11 are provided on the top surface of the connecting disk 10 and are provided close to the first clearance holes 12. Each mounting portion 11 is provided with a first light hole 111. The polishing disk 20 is provided with a plurality of connecting portions 21. The connecting portions 21 are provided in a one-to-one correspondence with the first clearance holes 12. Each connecting portion 21 is provided with a second light hole 211. Each connecting portion 21 passes through the corresponding first clearance hole 12. The connecting component 30 passes through the second light hole 211 and the first light hole 111 in sequence to detachably connect the polishing disk 20 to the connecting disk 10.

[0045] In actual operation, the connecting part 21 on the polishing disc 20 is inserted through the first clearance hole 12 on the connecting disc 10, and the connecting component 30 is then inserted through the second light hole 211 and the first light hole 111 in sequence for fastening, thus completing the installation of the connecting disc 10 and the polishing disc 20. When the polishing disc 20 needs to be replaced, the connecting component 30 can be loosened to remove the entire polishing disc 20. With this design, no complex positioning adjustments are required during disassembly and assembly; only the connecting component 30 needs to be operated to complete the disassembly and installation of the polishing disc 20, improving disassembly and assembly efficiency. Furthermore, the connecting component 30 used in this application requires almost no tools or only simple tools when replacing the polishing disc 20, shortening the downtime of the polishing device. In this application, the second light hole 211 and the first light hole 111 through which the connecting component 30 is inserted are unthreaded, avoiding the occurrence of thread stripping failure after repeated installation and removal, reducing the need for secondary thread processing and lowering production costs. In addition, the mounting part 11 is located on the top surface of the connecting plate 10 and close to the first clearance hole 12, so that when installing or removing the polishing plate 20, it is not necessary to move or flip the heavy polishing device, which reduces the difficulty of operation.

[0046] Compared to the prior art which uses screws to fix the connecting disc 10 and the polishing disc 20, the grinding and polishing assembly in this application uses a connecting component 30 that is sequentially inserted into the second light hole 211 and the first light hole 111. This simplifies the disassembly and assembly process of the connecting disc 10 and the polishing disc 20, improves the replacement efficiency, and avoids the situation where the threads strip and fail due to the continuous replacement of the polishing disc 20 over a long period of time.

[0047] Furthermore, in this application, the mounting part 11 is fixedly mounted to the connecting plate 10 by a plurality of fasteners 70, and the connecting part 21 is also fixed to the polishing plate 20 by a plurality of fasteners 70. Optionally, the fasteners 70 can be bolts, screws, etc., and are not specifically limited in this application. Exemplarily, the number of fasteners 70 on the mounting part 11 and the number of fasteners 70 on the connecting part 21 can be 2, 3, 4, or more. This application shows the case where the number of fasteners 70 is 4. In this application, the connecting part 21 is L-shaped, and the fasteners 70 are provided on the side away from the connecting plate 10 to fix the connecting part 21 to the polishing plate 20. Of course, in other embodiments of this application, the connecting part 21 can also be other shapes, as long as it is a variation of the concept of this application, it is within the protection scope of this application.

[0048] In other words, the connection strength and stability are enhanced by the combined action of multiple fasteners 70 between the mounting part 11 and the connecting plate 10, and between the connecting part 21 and the polishing plate 20, reducing motion errors caused by loose connections and thus ensuring polishing accuracy. In addition, this arrangement also improves the flexibility of assembly and maintenance and ensures positioning accuracy.

[0049] like Figures 1 to 4 As shown, the second aperture 211 includes an elongated hole extending along the thickness direction of the connecting disk 10, and the connecting component 30 is clearance-fitted with the elongated hole. In the polishing apparatus, designing the second aperture 211 as an elongated hole extending along the thickness direction of the connecting disk 10, and using a clearance fit between the connecting component 30 and the elongated hole, provides axial and radial floating allowances, enabling the polishing disk 20 to self-adaptively fit, thereby ensuring uniform polishing pressure and avoiding localized excessive wear. Furthermore, the clearance fit between the connecting component 30 and the elongated hole ensures uniform contact with the surface of the workpiece to be polished (not shown in the figure), reducing polishing marks, scratches, or localized over-polishing defects, and improving the polishing accuracy and surface quality of the workpiece.

[0050] like Figure 4 As shown, a limiting step 1111 is provided within the first aperture 111, and the connecting assembly 30 includes a pin sleeve 31, a locking element 32, and a pin shaft 33. In this application, in the polishing assembly, the polishing disc 20 and the connecting disc 10 can be quickly and reliably disassembled and installed through the cooperation of the first aperture 111, the limiting step 1111, and the connecting assembly 30 (including the pin sleeve 31, the locking element 32, and the pin shaft 33). In actual operation, different polishing discs 20 need to be replaced to perform rough polishing, semi-fine polishing, and fine polishing of the workpiece according to the polishing precision required. In this application, the connecting assembly 30 is selected as an assembly of the pin sleeve 31, the locking element 32, and the pin shaft 33, which improves the disassembly and assembly efficiency between the polishing disc 20 and the connecting disc 10.

[0051] Specifically, the pin sleeve 31 is detachably connected to the first light hole 111. A first through hole 311 is provided on the axis of the pin sleeve 31, and a second clearance hole 3111 is provided on the inner wall surface of the first through hole 311. In this application, there are two second clearance holes 3111, and the two second clearance holes 3111 are symmetrically arranged. A locking member 32 is provided in the second clearance hole 3111, and there are also two locking members 32. The locking member 32 has a first position that at least partially protrudes from the outer surface of the pin sleeve 31 and stops at the limiting step 1111, and a second position that retracts to the inside of the second clearance hole 3111. The pin shaft 33 passes through the first through hole 311 and can move along the axial direction of the first through hole 311. A pushing part 331 is provided on the pin shaft 33. The pin shaft 33 moves along the axial direction of the first through hole 311 so that the pushing part 331 pushes the locking member 32 from the first position to the second position. For example, the locking element 32 can be a ball.

[0052] When the locking member 32 is in the first position (partially protruding from the outer surface of the pin sleeve 31 and stopped by the limiting step 1111), the locking member 32 and the limiting step 1111 form a mechanical engagement. The radially protruding locking member 32 axially fixes the pin sleeve 31 in the first light hole 111, realizing a reliable lock between the connecting assembly 30 and the mounting part 11. This eliminates the need for complex operations such as thread tightening, and the locking process is stable and instantaneous. Compared with traditional threaded connections (which are prone to loosening due to vibration) or simple clearance fits (without axial restraint), this structure can more reliably resist axial tension, prevent the pin sleeve 31 from accidentally coming out of the first light hole 111, and ensure the long-term stability of the connection. In this application, the connecting component 30 needs to balance secure locking with not hindering floating. The core components such as the locking member 32 and the pin 33 are integrated inside the first light hole 111 and the pin sleeve 31 (the locking member 32 is hidden in the second clearance hole 3111, and the pin 33 passes through the first through hole 311), without protruding too much space to the outside, avoiding interference with other structures of the connecting plate 10 and the polishing plate 20 (such as elongated holes), and adapting to the compact design requirements of the polishing device.

[0053] When disassembly is required, simply move the pin 33 axially and push the locking member 32 back to the second position (back to the inside of the second clearance hole 3111) through the pushing part 331. At this time, the locking member 32 is released from the limit step 1111, and the pin sleeve 31 can be directly removed from the first light hole 111 without the need for tool assistance or complicated twisting, which greatly shortens the replacement time of the polishing disc 20, and the operation is simple and the maintenance difficulty is reduced.

[0054] Furthermore, in this application, the locking / unlocking action is completed only by the axial movement of the pin 33, without affecting the clearance fit between the connecting component 30 and the elongated hole (second light hole 211). Therefore, in the locked state, the polishing disk 20 can still achieve the micro-adjustment required for floating polishing through the gap between the elongated hole and the connecting component 30.

[0055] like Figure 4As shown, the inner wall surface of the first end of the first through hole 311 is provided with an inner flange 3112, and the connecting assembly 30 also includes an elastic element 34. Exemplarily, the elastic element 34 can be a spring, a rubber pad, etc. The elastic force of the elastic element 34 provides an automatic driving force for the locking element 32 to switch from the first position to the second position or from the second position to the first position. The elastic element 34 is disposed inside the pin sleeve 31 and sleeved on the outer periphery of the pin shaft 33, with both ends of the elastic element 34 abutting against the inner flange 3112 and the pushing part 331, respectively. When the pin shaft 33 is subjected to external force, it overcomes the elastic force of the elastic element 34, causing the pushing part 331 to push the locking element 32 from the first position to the second position, thus completing the separation of the pin sleeve 31 and the first optical hole 111. When the pin shaft 33 is subjected to the elastic force of the elastic element 34, causing the pushing part 331 to push the locking element 32 from the second position to the first position, the polishing disc 20 and the connecting disc 10 are fixedly connected. During polishing, high-speed rotation or vibration of the equipment may cause the locking member 32 to loosen unexpectedly. The continuous elastic force of the elastic member 34 forms a continuous radial thrust on the locking member 32 through the pushing part 331. The continuous elastic force can resist external interference such as vibration and impact, preventing the locking member 32 from accidentally retracting to the second position. This ensures the long-term stability of the locking state between the connecting component 30 and the mounting part 11 (first optical hole 111), and prevents the polishing disc 20 from falling off during polishing. In addition, when the grinding and polishing device is running, the pin 33 may be subjected to axial impact due to equipment vibration or assembly errors. The elastic member 34 can absorb part of the impact force through its own deformation, thereby preventing wear or deformation between the pushing part 331 and the locking member 32, and between the locking member 32 and the limiting step 1111 due to rigid collision, thus extending the service life of the components. At the same time, the flexible connection of the elastic member 34 can reduce the rigid friction between the pin 33 and the pin sleeve 31, reduce component wear, and improve the durability of the overall structure.

[0056] See you again Figure 4 As shown, the pin 33 is provided with an outer flange 332, and the inner wall surface of the second end of the first through hole 311 is provided with threads (not shown in the figure). The connecting assembly 30 also includes a nut 35, which is threaded into the first through hole 311 and stops the outer flange 332 on the side away from the inner flange 3112. In this application, the cooperation of the outer flange 332 and the nut 35 forms a double axial limit, preventing the pin 33 from coming out of the pin sleeve 31 due to excessive external force, thus preventing the connecting assembly 30 from disintegrating. Through the support of the elastic element 34 by the inner flange 3112, the cooperation of the outer flange 332 and the nut 35 further limits the maximum travel of the pin 33 (i.e., the displacement range of the locking element 32 switching position), ensuring that the state switching of the locking element 32 is always within the preset range, avoiding locking failure or component damage due to excessive movement of the pin 33.

[0057] Furthermore, in this application, assembly accuracy compensation and elastic force adjustment are achieved through threaded adjustment. During assembly, the axial position of the nut 35 within the first through hole 311 can be finely adjusted by rotating the nut 35, thereby adjusting the distance between the outer flange 332 and the inner flange 3112, indirectly controlling the initial compression (i.e., elastic force) of the elastic element 34. This adjustment function can compensate for part machining errors (such as the length of the pin 33 and the dimensional deviation of the elastic element 34), ensuring that even with slight dimensional errors, the assembly can still achieve optimal fit by adjusting the nut 35, thus improving assembly accuracy. Moreover, the nut 35 and threaded connection enable detachment. When it is necessary to replace the elastic element 34, pin 33, or locking element 32, simply unscrewing the nut 35 allows the pin 33 and related components to be removed without damaging the pin sleeve 31 or other structures, greatly simplifying the maintenance process. In addition, during the polishing process, the vibration of the equipment may cause the pin 33 to move axially. The nut 35, after being tightened by the thread, fits tightly with the outer flange 332, which can form a continuous axial constraint on the pin 33, reduce the loosening or displacement of the pin 33 caused by vibration, ensure the stable cooperation between the push part 331 and the locking part 32, and avoid accidental failure of the locking state.

[0058] like Figure 8 and Figure 9 As shown, the polishing assembly also includes a first rolling member 40, which is disposed on the mounting portion 11 and / or the connecting portion 21. The surfaces of the connecting portion 21 and the mounting portion 11 facing each other are in contact through the first rolling member 40. Specifically, the first rolling member 40 can be disposed on the mounting portion 11, on the connecting portion 21, or simultaneously on both the mounting portion 11 and the connecting portion 21. This application does not make specific limitations; the case shown here is that the first rolling member 40 is disposed on the connecting portion 21. During the polishing process, the first rolling member 40 restricts the radial positioning of the polishing disc 20 and reduces the friction of the polishing disc 20 when it moves up and down, extending the life of the component and improving the reliability and stability of the connection.

[0059] In actual operation, the connecting part 21 and the mounting part 11 may experience relative displacement (such as minor adjustments due to polishing force or position calibration during assembly). Traditional sliding contact results in high resistance due to the high coefficient of friction, consuming more power and easily causing wear due to friction, thus affecting the lifespan of the components. The first rolling component 40 converts sliding friction into rolling friction through rolling contact, significantly reducing resistance during relative movement and reducing energy loss. At the same time, rolling friction causes minimal wear on the contact surface, significantly extending the service life of the mounting part 11 and the connecting part 21 and reducing maintenance costs. Furthermore, the first rolling component 40 makes point or line contact with the contact surface, resulting in a small contact area. During polishing, contaminants are less likely to accumulate in the contact area, and the rolling process can "crush" or remove small impurities to a certain extent, reducing the risk of motion failure caused by contaminants. Simultaneously, during polishing, the first rolling component 40 can transmit and distribute concentrated pressure to the contact surface, reducing the pressure per unit area (especially when multiple first rolling components 40 are evenly distributed), protecting the surface accuracy of the mounting part 11 and the connecting part 21, and maintaining long-term fit stability.

[0060] Further, along the rotation direction of the polishing disc 20, the connecting portion 21 sequentially has a first side surface 212 and a second side surface 213. The polishing assembly also includes a second rolling member 50, which is disposed on the mounting portion 11 and / or the connecting portion 21. The first side surface 212 contacts the mounting portion 11 through the second rolling member 50. Exemplarily, the second rolling member 50 can be disposed simultaneously on both the first side surface 212 and the second side surface 213 of the connecting portion 21. Specifically, the second rolling member 50 can be disposed on the mounting portion 11, on the connecting portion 21, or simultaneously on both the mounting portion 11 and the connecting portion 21. In this application, it is preferable to dispose of the second rolling member 50 on the first side surface 212 of the connecting portion 21. In this application, the rotation direction of the polishing disc 20 is a fixed counterclockwise direction. The first side surface 212, as the main force-bearing surface in the rotation direction, directly bears the load in this direction. Therefore, simply disposing of the second rolling member 50 on the first side surface 212 can buffer the impact force in the rotation direction, reduce structural wear, and extend the service life of the component.

[0061] When the polishing disc 20 rotates, the connecting part 21 will be subjected to torque or inertial force in the direction of rotation, which may cause the connecting part 21 to shift or wobble relative to the mounting part 11 in the direction of rotation, affecting the polishing accuracy. The second rolling component 50 is disposed between the first side surface 212 (the front end surface in the direction of rotation) and the mounting part 11. It can allow the connecting part 21 to make minor adjustments as the polishing disc 20 rotates normally through rolling contact, and can also use the rigid support of the second rolling component 50 to limit the excessive displacement of the connecting part 21 in the direction of rotation, playing a dual role of "guiding + limiting" to ensure the stability of the polishing disc 20 when it rotates.

[0062] like Figure 5 and Figure 6 As shown, both the first rolling component 40 and the second rolling component 50 include a rolling bearing 41, a fixing pin 42, and a retaining ring 43. The retaining ring 43 is disposed between the rolling bearing 41 and the mounting portion 11, and the fixing pin 42 passes through the rolling bearing 41 and the retaining ring 43 and is fixed to the mounting portion 11; alternatively, the retaining ring 43 is disposed between the rolling bearing 41 and the connecting portion 21, and the fixing pin 42 passes through the rolling bearing 41 and the retaining ring 43 and is fixed to the connecting portion 21. Exemplarily, in this application, the rolling bearing 41 can be a needle roller bearing. Through the cooperation of the inner ring, outer ring, rolling elements, and cage, it can more stably withstand radial or axial loads, reduce offset and wear during rolling, ensure more stable frictional characteristics of the first rolling component 40 and the second rolling component 50, thereby extending the service life of the equipment.

[0063] Furthermore, the fixing pin 42 passes through the rolling bearing 41 and the retaining ring 43 and is fixed to the mounting part 11 or the connecting part 21, providing precise axial and radial positioning for the rolling bearing 41, preventing the rolling components from loosening, falling off or shifting position during movement, and ensuring that they always function in the preset contact position.

[0064] Furthermore, the retaining ring 43 is disposed between the rolling bearing 41 and the mounting portion 11 (or connecting portion 21). This retaining ring 43 can evenly distribute the load transmitted by the rolling bearing 41 to the surface of the mounting portion 11 or connecting portion 21, preventing localized stress concentration due to insufficient contact area when the rolling bearing 41 directly contacts the mounting portion 11 or connecting portion 21, and reducing indentations and wear on the surface of the mounting portion 11 or connecting portion 21. In this application, the retaining ring 43 is a hard retaining ring (metal material), which can be precision machined to ensure parallelism with the rolling bearing 41, assisting in adjusting the mounting posture of the rolling bearing 41 and ensuring stable contact. The retaining ring 43 also isolates the rolling bearing 41 from direct contact with the mounting portion 11 or connecting portion 21, preventing electrochemical corrosion or aggravated wear caused by differences in materials (such as metal and plastic) or surface treatments (such as plating, roughness). Simultaneously, it can prevent dust, debris, and other contaminants from entering the interior of the rolling bearing 41, protecting the bearing's lubrication performance.

[0065] Furthermore, in this application, screws 44 can be provided on the first rolling member 40 or the second rolling member 50 to further lock the fixing pin 42, preventing the fixing pin 42 from falling off during polishing and improving the installation stability of the first rolling member 40 and the second rolling member 50. This application... Figure 6 The image shows the installation of screw 44 and retaining pin 42.

[0066] In this application, the specific installation positions of the first rolling component 40 and the second rolling component 50 are not limited. The appropriate installation position is selected according to the actual production situation, as long as it can reduce the friction when the polishing disk 20 moves up and down and perform radial and circumferential positioning of the polishing disk 20.

[0067] like Figure 1 and Figure 2 As shown, the mounting part 11 includes at least three parts, and the at least three mounting parts 11 are arranged sequentially at intervals along the circumferential direction of the connecting disk 10. The connecting part 21 includes at least three parts, and the at least three connecting parts 21 are arranged sequentially at intervals along the circumferential direction of the polishing disk 20.

[0068] For example, in the application, the number of mounting parts 11 can be 3, 4, or more; the number of first clearance holes 12 can also be 3, 4, or more; and the number of connecting parts 21 can also be 3, 4, or more. In this application, it is preferred that the number of mounting parts 11, connecting parts 21, and first clearance holes 12 are all 3. With this arrangement, the stability of the connection between the connecting disc 10 and the polishing disc 20 is achieved by utilizing the stability of the triangle. The three points determine a unique plane, and the line connecting any two points can form a mutually restraining lever arm, which can evenly distribute the radial and axial forces on the polishing disc 20 to the three connecting points, avoiding overload of a single point. If there are only 2 mounting parts 11, connecting parts 21, and first clearance holes 12, only translation can be restricted, but rotation around the connecting line cannot be constrained. The polishing disc 20 is prone to swinging during rotation, resulting in eccentric vibration. If there are four or more of these components, manufacturing errors can easily lead to loose connections at some points, resulting in an unstable state of single or two-point stress and exacerbating localized wear. Furthermore, a large number of these components makes loading and unloading the polishing disc 20 inconvenient and increases production costs.

[0069] like Figures 1 to 4 , Figure 8 and Figure 9As shown, the polishing assembly also includes a stop plate 60. Specifically, the stop plate 60 is disposed on the connecting assembly 30 and located on the side of the connecting portion 21 away from the mounting portion 11, and the maximum width of the stop plate 60 is greater than the maximum width of the second aperture 211. In this application, the polishing disc 20 and the connecting disc 10 are floatingly connected to the second aperture 211 through the connecting assembly 30, and there is a clearance fit between the connecting assembly 30 and the second aperture 211. However, when the polishing device is running (e.g., high-speed rotation, vibration) or when the polishing disc 20 is being loaded or unloaded, if the polishing disc 20 undergoes a large displacement along the axial direction (away from the connecting disc 10), it may slip off the connecting assembly 30 (especially when the axial length of the second aperture 211 is large). The maximum width of the stop plate 60 is greater than the maximum width of the second aperture 211, and it is located on the side of the connecting portion 21 away from the mounting portion 11. Thus, when the polishing disc 20 moves axially outward (away from the connecting disc 10), the stop plate 60 contacts and locks against the surface of the connecting portion 21 (the edge of the second aperture 211), mechanically limiting the maximum axial displacement of the polishing disc 20 and preventing it from detaching from the connecting assembly 30, thereby ensuring the safe operation and stability of the equipment. In this application, the stop plate 60 is directly mounted on the connecting assembly 30, reducing the number of parts and processing costs, and also lowering the assembly difficulty.

[0070] Optionally, the polishing assembly also includes a connector (not shown in the figure) that connects the connecting assembly 30 to the mounting portion 11. For example, the connector can be a rope, wire, etc. Specifically, a first connecting hole 61 is provided on the stop plate 60, and a second connecting hole 112 is provided on the mounting portion 11. When the polishing disc 20 is disassembled, the connecting assembly 30 is connected to the mounting portion 11 via the connector to prevent the connecting assembly 30 from being lost.

[0071] like Figures 1 to 4 As shown, the top of the connecting disk 10 is provided with multiple reinforcing ribs 13, and multiple drainage holes 14 are provided on the side wall of the connecting disk 10. The reinforcing ribs 13, by increasing the structural thickness of the top of the connecting disk 10 (or forming a grid / support structure), can effectively distribute the load borne by the top (such as pressure and vibration impact during the polishing process), reducing bending or torsional deformation caused by force. Especially when the connecting disk 10 drives the polishing disk 20 to rotate at high speed, it can avoid structural flutter caused by centrifugal force or external force, ensuring overall operational stability. The drainage holes 14 can quickly discharge waste liquid and debris during the polishing process, preventing them from accumulating between the connecting disk 10 and the polishing disk 20 or adhering to the polishing surface, reducing interference with polishing accuracy. In addition, the drainage holes 14 can also reduce liquid resistance and energy consumption, improving the operating efficiency of the polishing device; and the drainage holes 14 can prevent waste liquid from seeping into internal components (such as bearings and fasteners 70) along the gaps of the connecting disk 10, reducing the risk of liquid corrosion or lubrication failure of the internal structure, protecting the stability of core components.

[0072] Combined again Figures 1 to 9 As shown, this application also provides a polishing apparatus, which includes the aforementioned polishing components. Therefore, the polishing apparatus provided in this embodiment includes all the technical effects of the aforementioned polishing components. Since the technical effects of the polishing components have been described in detail above, they will not be repeated here.

[0073] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0074] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0075] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A grinding and polishing assembly, characterized in that, include: A connecting plate (10) is provided with a plurality of mounting parts (11) and a plurality of first clearance holes (12). The plurality of mounting parts (11) are provided in a one-to-one correspondence with the plurality of first clearance holes (12). The first clearance holes (12) are provided through the thickness direction of the connecting plate (10). The mounting parts (11) are provided on the top surface of the connecting plate (10) and close to the first clearance holes (12). Each mounting part (11) is provided with a first light hole (111). A polishing disc (20) is provided with a plurality of connecting parts (21), each connecting part (21) being provided in a one-to-one correspondence with the first clearance hole (12), and each connecting part (21) being provided with a second light hole (211). The connecting component (30) has each connecting part (21) passing through the corresponding first clearance hole (12). The connecting component (30) passes through the second light hole (211) and the first light hole (111) in sequence to detachably connect the polishing disk (20) to the connecting disk (10).

2. The polishing assembly according to claim 1, characterized in that, The second optical aperture (211) includes an elongated hole that extends along the thickness direction of the connecting disk (10), and the connecting assembly (30) is clearance-fitted with the elongated hole.

3. The polishing assembly according to claim 1, characterized in that, A limiting step (1111) is provided inside the first optical aperture (111), and the connecting assembly (30) includes: A pin sleeve (31) is detachably connected to the first light hole (111). A first through hole (311) is provided on the axis of the pin sleeve (31), and a second clearance hole (3111) is provided on the inner wall surface of the first through hole (311). Locking member (32), the locking member (32) is disposed in the second clearance hole (3111), the locking member (32) has at least partially protruding from the outer surface of the pin sleeve (31) and stopping at the limiting step (1111) in a first position and retracted to the inside of the second clearance hole (3111) in a second position; A pin (33) is provided, which passes through the first through hole (311) and can move along the axial direction of the first through hole (311). A pushing part (331) is provided on the pin (33). The pin (33) moves along the axial direction of the first through hole (311) so that the pushing part (331) pushes the locking member (32) to switch from the first position to the second position.

4. The polishing assembly according to claim 3, characterized in that, The inner wall surface of the first end of the first through hole (311) is provided with an inner flange (3112), and the connecting assembly (30) further includes: The elastic element (34) is disposed inside the pin sleeve (31) and sleeved on the outer periphery of the pin shaft (33). The two ends of the elastic element (34) abut against the inner flange (3112) and the pushing part (331) respectively. Wherein, the pin (33) is subjected to external force to overcome the elastic force of the elastic member (34) and drive the push part (331) to push the locking member (32) from the first position to the second position. The pin (33) is subjected to the elastic force of the elastic member (34) and drive the push part (331) to push the locking member (32) from the second position to the first position.

5. The polishing assembly according to claim 4, characterized in that, The pin (33) is provided with an outer flange (332), and the inner wall surface of the second end of the first through hole (311) is provided with a thread. The connecting assembly (30) also includes a nut (35), which is installed in the first through hole (311) by the thread and stops on the side of the outer flange (332) away from the inner flange (3112).

6. The polishing assembly according to claim 1, characterized in that, The polishing assembly further includes a first rolling component (40), which is disposed on the mounting portion (11) and / or the connecting portion (21), and the surfaces of the connecting portion (21) opposite to the mounting portion (11) are in contact through the first rolling component (40); and / or, Along the rotation direction of the polishing disc (20), the connecting part (21) has a first side surface (212) and a second side surface (213) in sequence. The polishing assembly also includes a second rolling component (50), which is disposed on the mounting part (11) and / or the connecting part (21). The first side surface (212) and the mounting part (11) are in contact through the second rolling component (50).

7. The polishing assembly according to claim 6, characterized in that, Both the first rolling component (40) and the second rolling component (50) include a rolling bearing (41), a fixing pin (42), and a retaining ring (43); wherein, The retaining ring (43) is disposed between the rolling bearing (41) and the mounting part (11), and the fixing pin (42) passes through the rolling bearing (41) and the retaining ring (43) and is fixed to the mounting part (11); or, The retaining ring (43) is disposed between the rolling bearing (41) and the connecting part (21), and the fixing pin (42) passes through the rolling bearing (41) and the retaining ring (43) and is fixed on the connecting part (21).

8. The polishing assembly according to any one of claims 1 to 7, characterized in that, The mounting part (11) includes at least three, and the at least three mounting parts (11) are arranged at intervals along the circumferential direction of the connecting disk (10). The connecting part (21) includes at least three, and the at least three connecting parts (21) are arranged at intervals along the circumferential direction of the polishing disk (20).

9. The polishing assembly according to any one of claims 1 to 7, characterized in that, The polishing assembly further includes a stop plate (60), which is disposed on the connecting assembly (30) and located on the side of the connecting portion (21) opposite to the mounting portion (11). The maximum width of the stop plate (60) is greater than the maximum width of the second aperture (211); and / or, The polishing assembly also includes a connector that connects the connecting assembly (30) to the mounting portion (11).

10. A grinding and polishing device, characterized in that, The polishing apparatus includes the polishing components according to any one of claims 1 to 9.

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