Grinding and polishing assembly and grinding and polishing device

Abstract

The invention discloses a grinding and polishing assembly and a grinding and polishing device. The grinding and polishing assembly comprises a connecting disc, a polishing disc and a connecting assembly. Wherein the connecting disc is provided with a plurality of mounting parts and a plurality of first avoiding holes, the mounting parts and the first avoiding holes are arranged in a one-to-one correspondence mode, the first avoiding holes are arranged in a penetrating mode in the thickness direction of the connecting disc, the mounting parts are arranged on the top face of the connecting disc and are close to the first avoiding holes, and each mounting part is provided with a first unthreaded hole; a plurality of connecting parts are arranged on the polishing disc, the connecting parts and the first receding holes are arranged in a one-to-one correspondence mode, and second unthreaded holes are formed in the connecting parts; each connecting part is arranged in the corresponding first receding hole in a penetrating mode, and the connecting assemblies are sequentially arranged in the second unthreaded holes and the first unthreaded holes in a penetrating mode so that the polishing disc can be detachably connected to the connecting disc. By means of the grinding and polishing assembly and the grinding and polishing device, the problems that in the prior art, the dismounting and mounting process of a polishing disc is tedious, efficiency is low, and threads loosen and lose efficacy can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece grinding and polishing, and in particular to a grinding and polishing assembly and a grinding and polishing device. Background Art

[0002] In the prior art, the polishing assembly of the polishing device is mainly fixed to the connecting plate by screws. The disassembly and assembly process is cumbersome and inefficient, and after multiple disassembly and assembly, the threads on the polishing plate fixing plate are easily lost and fail. Summary of the Invention

[0003] The main purpose of the present invention is to provide a grinding and polishing assembly and a grinding and polishing device, which at least solve the problems of complicated assembly and disassembly process, low efficiency and thread slip failure of the polishing disc in the prior art.

[0004] According to one aspect of the present invention, there is provided a grinding and polishing assembly, comprising: A connecting disk, wherein the connecting disk is provided with a plurality of mounting portions and a plurality of first avoidance holes, wherein the plurality of mounting portions are provided in a one-to-one correspondence with the plurality of first avoidance holes, wherein the first avoidance holes are provided through the thickness direction of the connecting disk, the mounting portion is provided on the top surface of the connecting disk and is provided near the first avoidance holes, and each of the mounting portions is provided with a first light hole; A polishing plate, wherein the polishing plate is provided with a plurality of connecting parts, the connecting parts are provided in a one-to-one correspondence with the first avoidance holes, and each of the connecting parts is provided with a second light hole; A connecting component, each connecting portion is inserted into the corresponding first avoidance hole, and the connecting component is sequentially inserted into the second light hole and the first light hole to detachably connect the polishing plate to the connecting plate.

[0005] Furthermore, the second light hole comprises an elongated hole, the elongated hole extends along the thickness direction of the connecting plate, and the connecting component is clearance-fitted with the elongated hole.

[0006] Furthermore, a limited step is provided in the first light hole, and the connecting component includes: A pin sleeve, the pin sleeve being detachably connected to the first light hole, a first through hole being provided on the axis of the pin sleeve, and a second avoidance hole being provided on the inner wall surface of the first through hole; a locking member disposed in the second avoidance hole, the locking member having a first position where at least a portion of the locking member protrudes from the outer surface of the pin sleeve and is stopped at the limiting step, and a second position where the locking member is retracted to the inside of the second avoidance hole; A pin shaft is provided in the first through hole and can move along the axial direction of the first through hole. A pushing portion is provided on the pin shaft. The pin shaft moves along the axial direction of the first through hole so that the pushing portion pushes the locking member to switch from the first position to the second position.

[0007] Furthermore, an inner wall surface of the first end of the first through hole is provided with an inner flange, and the connecting assembly further comprises: an elastic member, the elastic member being arranged in the pin sleeve and sleeved on the outer circumference of the pin shaft, with two ends of the elastic member respectively abutting against the inner flange and the pushing portion; In which, the pin shaft is acted upon by an external force to overcome the elastic force of the elastic member and drive the pushing portion to push the locking member from the first position to the second position, and the pin shaft is acted upon by the elastic force of the elastic member to drive the pushing portion to push the locking member from the second position to the first position.

[0008] Furthermore, an outer flange is provided on the pin shaft, and a thread is provided on the inner wall surface of the second end of the first through hole. The connecting assembly also includes a nut, which is installed in the first through hole through the thread and stopped on the side of the outer flange away from the inner flange.

[0009] Furthermore, the polishing assembly further comprises a first rolling component, the first rolling component being arranged on the mounting portion and / or the connecting portion, and the surface of the connecting portion facing the mounting portion being in contact through the first rolling component; and / or, Along the rotation direction of the polishing disk, the connecting part has a first side surface and a second side surface in sequence, and the polishing assembly also includes a second rolling component: the second rolling component is arranged on the mounting part and / or the connecting part, and the first side surface is in contact with the mounting part through the second rolling component.

[0010] Furthermore, the first rolling component and the second rolling component each include a rolling bearing, a fixing pin and a retaining ring; wherein, The retaining ring is provided 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, The retaining ring is arranged between the rolling bearing and the connecting portion, and the fixing pin passes through the rolling bearing and the retaining ring and is fixed on the connecting portion.

[0011] Furthermore, the mounting parts include at least three, and at least three of the mounting parts are arranged in sequence and spaced apart along the circumferential direction of the connecting disk; the connecting parts include at least three, and at least three of the connecting parts are arranged in sequence and spaced apart along the circumferential direction of the polishing disk.

[0012] Furthermore, the polishing assembly further comprises a stop plate, which is provided on the connecting assembly and located on a side of the connecting portion away from the mounting portion, and the maximum width of the stop plate is greater than the maximum width of the second light hole; and / or, The polishing assembly further includes a connecting member, which connects the connecting assembly to the mounting portion.

[0013] On the other hand, the present application also provides a grinding and polishing device, which includes the above-mentioned grinding and polishing assembly.

[0014] In the present invention, multiple mounting portions and multiple first avoidance holes are provided on the connecting plate, and multiple connecting portions are provided on the polishing plate, with the mounting portions, first avoidance holes, and connecting portions all arranged in a one-to-one correspondence. Furthermore, a first optical hole is provided on the mounting portion, and a second optical hole is provided on the connecting portion. The connecting portion is inserted through the corresponding first avoidance hole, and a connecting assembly is sequentially inserted through the second optical hole and the first optical hole to removably connect the polishing plate to the connecting plate. This arrangement simplifies the assembly and disassembly process of the connecting plate and polishing plate, improves replacement efficiency, and also avoids the occurrence of thread slippage and failure caused by constant replacement of polishing plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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: Figure 1 A top view of the grinding and polishing assembly disclosed in an embodiment of the present invention; Figure 2 A schematic diagram of the overall structure of the grinding and polishing assembly disclosed in an embodiment of the present invention; Figure 3 for Figure 2 A partial enlarged view of area A in the middle; Figure 4 for Figure 3 sectional view of Figure 5 A cross-sectional view of a first rolling component of a grinding and polishing assembly disclosed in an embodiment of the present invention; Figure 6 A cross-sectional view of the second rolling component of the grinding and polishing assembly disclosed in an embodiment of the present invention; Figure 7 A cross-sectional view of a grinding and polishing assembly disclosed in an embodiment of the present invention; Figure 8 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; Figure 9 This is a schematic diagram of the installation structure of the first rolling component of the grinding and polishing assembly disclosed in an embodiment of the present invention.

[0016] The above drawings include the following reference numerals: 10. Connecting plate; 11. Mounting portion; 111. First light hole; 1111. Limiting step; 112. Second connecting hole; 12. First avoidance hole; 13. Reinforcing rib; 14. Drain hole; 20. Polishing plate; 21. Connecting portion; 211. Second light hole; 212. First side surface; 213. Second side surface; 30. Connecting assembly; 31. Pin sleeve; 311. First through hole; 3111. Second avoidance hole; 3112. Inner flange; 32. Locking member; 33. Pin shaft; 331. Pushing portion; 332. Outer flange; 34. Elastic member; 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 DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] 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.

[0019] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorized specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0020] As mentioned in the background, in prior art, the polishing assembly of a polishing device is primarily secured to the connecting plate using screws. This can be cumbersome and inefficient to assemble and disassemble, and can easily lead to thread slippage and failure on the polishing plate's mounting plate after repeated assembly and disassembly. To address this issue, the present application provides a polishing assembly and device that at least address the issues associated with prior art polishing devices. The present application's polishing assembly will be described in detail below, with reference to the accompanying drawings.

[0021] like Figures 1 to 9 As shown, according to an embodiment of the present application, a grinding and polishing assembly is provided, which includes: a connecting plate 10, a polishing plate 20 and a connecting assembly 30.

[0022] Specifically, a plurality of mounting portions 11 and a plurality of first avoidance holes 12 are provided on the connecting disk 10, and the plurality of mounting portions 11 are arranged in one-to-one correspondence with the plurality of first avoidance holes 12, and the first avoidance holes 12 are arranged through along the thickness direction of the connecting disk 10, and the mounting portion 11 is arranged on the top surface of the connecting disk 10 and close to the first avoidance hole 12, and each mounting portion 11 is provided with a first light hole 111; a plurality of connecting portions 21 are provided on the polishing disk 20, and the connecting portions 21 are arranged in one-to-one correspondence with the first avoidance holes 12, and each connecting portion 21 is provided with a second light hole 211; each connecting portion 21 is passed through the corresponding first avoidance hole 12, and the connecting component 30 is passed 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.

[0023] During actual operation, the connecting portion 21 on the polishing disc 20 is inserted into the first avoidance hole 12 on the connecting disc 10, and the connecting assembly 30 is sequentially inserted into the second optical hole 211 and the first optical hole 111 for fastening to complete the installation of the connecting disc 10 and the polishing disc 20. When the polishing disc 20 needs to be replaced, it is only necessary to loosen the connecting assembly 30 to remove the polishing disc 20 as a whole. With such an arrangement, there is no need for complex positioning adjustments during assembly and disassembly, and only the operation of the connecting assembly 30 is required to complete the disassembly and installation of the polishing disc 20, thereby improving the efficiency of assembly and disassembly. Moreover, the connecting assembly 30 used in this application requires almost no tools or only simple tools when replacing the polishing disc 20, thereby shortening the downtime of the grinding and polishing device. In this application, the second optical hole 211 and the first optical hole 111 sequentially inserted by the connecting assembly 30 are free of threads, thereby avoiding the occurrence of thread slippage and failure after multiple assembly and disassembly, reducing secondary thread processing and lowering production costs. In addition, the mounting portion 11 is disposed on the top surface of the connecting disc 10 and close to the first avoidance hole 12. When installing or removing the polishing disc 20, there is no need to move or flip the heavy polishing device, which reduces the difficulty of operation.

[0024] Compared with the prior art that uses screws to fix the connecting plate 10 and the polishing plate 20, the grinding and polishing assembly in the present application uses a connecting assembly 30 that is sequentially passed through the second light hole 211 and the first light hole 111. While simplifying the disassembly and assembly process of the connecting plate 10 and the polishing plate 20 and improving the replacement efficiency, it also avoids the occurrence of thread slippage and failure caused by long-term replacement of the polishing plate 20.

[0025] Furthermore, in the present application, the mounting portion 11 is fixedly mounted on the connecting disk 10 by a plurality of fasteners 70, and the connecting portion 21 is also fixed to the polishing disk 20 by a plurality of fasteners 70. Optionally, the fasteners 70 may be bolts, screws, etc., which are not specifically limited in the present application. For example, the number of fasteners 70 on the mounting portion 11 and the number of fasteners 70 on the connecting portion 21 may be 2, 3, 4, and more than 4. The present application shows a case where the number of fasteners 70 is 4. In the present application, the connecting portion 21 is L-shaped, and the fasteners 70 are arranged on the side away from the connecting disk 10 to fix the connecting portion 21 to the polishing disk 20. Of course, in other embodiments of the present application, the connecting portion 21 may also be other shapes, as long as they are within the scope of protection of the present application as long as they are within the conception of the present application.

[0026] That is to say, between the mounting portion 11 and the connecting plate 10, and between the connecting portion 21 and the polishing plate 20, the connection strength and stability are improved through the joint action of multiple fasteners 70, the motion error caused by loose connection is reduced, and the polishing accuracy is ensured; in addition, such a setting also improves the flexibility of assembly and maintenance and ensures positioning accuracy.

[0027] like Figures 1 to 4 As shown, the second aperture 211 comprises an elongated hole extending along the thickness of the connecting disc 10, with the connecting assembly 30 having a clearance fit therebetween. In the polishing apparatus, the second aperture 211 is designed as an elongated hole extending along the thickness of the connecting disc 10, and the connecting assembly 30 and the elongated hole are clearance-fitted. This provides axial and radial floating margins, enabling adaptive fit of the polishing disc 20, thereby ensuring uniform polishing pressure and avoiding localized excessive wear. Furthermore, the clearance fit between the connecting assembly 30 and the elongated hole ensures consistent, uniform contact with the surface of the workpiece to be ground (not shown), reducing defects such as polishing lines, scratches, and localized over-polishing, thereby improving the polishing accuracy and surface quality of the workpiece.

[0028] like Figure 4As shown, a limiting step 1111 is provided within the first aperture 111, and the connecting assembly 30 includes a pin sleeve 31, a locking member 32, and a pin shaft 33. In the present application, in the polishing assembly, the first aperture 111, the limiting step 1111, and the connecting assembly 30 (including the pin sleeve 31, the locking member 32, and the pin shaft 33) cooperate to achieve rapid and reliable disassembly and installation of the polishing disc 20 and the connecting disc 10. In actual operation, depending on the polishing accuracy of the workpiece, different polishing discs 20 need to be replaced for rough polishing, semi-finishing polishing, and fine polishing. In the present application, the connecting assembly 30 is selected to be assembled with the pin sleeve 31, the locking member 32, and the pin shaft 33, thereby improving the efficiency of disassembly and installation between the polishing disc 20 and the connecting disc 10.

[0029] Specifically, the pin sleeve 31 is detachably connected to the first aperture 111. A first through-hole 311 is provided along the axis of the pin sleeve 31, and a second relief hole 3111 is provided on the inner wall of the first through-hole 311. In the present application, there are two second relief holes 3111, and these two second relief holes 3111 are symmetrically arranged. Two locking members 32 are provided in the second relief holes 3111. The locking members 32 have a first position in which they at least partially protrude from the outer surface of the pin sleeve 31 and abut against the stop step 1111, and a second position in which they retract into the interior of the second relief hole 3111. A pin shaft 33 is provided through the first through-hole 311 and is movable along the axis of the first through-hole 311. A pusher 331 is provided on the pin shaft 33. The pin shaft 33 moves along the axial direction of the first through-hole 311, causing the pusher 331 to push the locking member 32 from the first position to the second position. For example, the locking member 32 may be a ball.

[0030] When the locking member 32 is in the first position (partially protruding from the outer surface of the pin sleeve 31 and resting on the stop step 1111), the locking member 32 forms a mechanical engagement with the stop step 1111. The radially protruding locking member 32 secures the pin sleeve 31 axially within the first aperture 111, reliably locking the connection assembly 30 to the mounting portion 11 without requiring complex operations such as thread tightening. The locking process is stable and immediate. Compared to traditional threaded connections (which are prone to loosening due to vibration) or simple clearance fits (which lack axial restraint), this structure more reliably resists axial tension, preventing the pin sleeve 31 from accidentally dislodging from the first aperture 111 and ensuring the long-term stability of the connection. In this application, the connecting assembly 30 needs to take into account both firm locking and no obstruction to floating, and the core components such as the locking member 32 and the pin shaft 33 are integrated into the first light hole 111 and the pin sleeve 31 (the locking member 32 is hidden in the second avoidance hole 3111, and the pin shaft 33 is passed 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 long holes, etc.), and adapting to the compact design requirements of the polishing device.

[0031] When disassembly is required, it is only necessary to move the pin shaft 33 axially and push the locking member 32 back to the second position (retract to the inside of the second avoidance hole 3111) through the pushing portion 331. At this time, the locking member 32 and the limiting step 1111 are released, and the pin sleeve 31 can be directly taken out from the first light hole 111 without the assistance of tools or complicated screwing, which greatly shortens the replacement time of the polishing disc 20, simplifies the operation and reduces the difficulty of maintenance.

[0032] Furthermore, in the present application, the locking / unlocking action is completed only by the axial movement of the pin 33, which does not affect the clearance fit relationship between the connecting component 30 and the elongated hole (the 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.

[0033] like Figure 4 As shown, the inner wall surface of the first end of the first through hole 311 is provided with an inner flange 3112. The connecting assembly 30 also includes an elastic member 34. For example, the elastic member 34 may be a spring, a rubber pad, or the like. The elastic force of the elastic member 34 provides an automatic driving force for the locking member 32 to switch from the first position to the second position, or vice versa. The elastic member 34 is disposed within the pin sleeve 31 and sleeved around the outer circumference of the pin shaft 33. The ends of the elastic member 34 respectively abut against the inner flange 3112 and the pushing portion 331. When an external force acts on the pin shaft 33, the elastic force of the elastic member 34 is overcome, driving the pushing portion 331 to push the locking member 32 from the first position to the second position, thereby separating the pin sleeve 31 from the first optical hole 111. When the elastic force of the elastic member 34 drives the pushing portion 331 to push the locking member 32 from the second position to the first position, the polishing plate 20 is fixedly connected to the connecting plate 10. During the polishing process, high-speed rotation or vibration of the equipment may cause the locking member 32 to accidentally loosen. However, the continuous elastic force of the elastic member 34, through the push portion 331, exerts a continuous radial thrust on the locking member 32. This sustained elastic force resists external forces 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 locked state between the connecting assembly 30 and the mounting portion 11 (first aperture 111), preventing the polishing disc 20 from falling off during polishing. Furthermore, during operation of the polishing device, the pin 33 may be subjected to axial impact due to equipment vibration or assembly errors. The elastic member 34 absorbs some of this impact force through its own deformation, thereby preventing wear or deformation caused by rigid impact between the push portion 331 and the locking member 32, and between the locking member 32 and the stop step 1111, thereby extending the service life of the components. Furthermore, the flexible connection of the elastic member 34 reduces rigid friction between the pin 33 and the pin sleeve 31, reducing component wear and improving the durability of the overall structure.

[0034] See again Figure 4As 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). The connecting assembly 30 also includes a nut 35, which is threadedly mounted in the first through-hole 311 and abuts against the side of the outer flange 332 away from the inner flange 3112. In this application, the cooperation between the outer flange 332 and the nut 35 creates a dual axial restraint, preventing the pin 33 from being dislodged from the pin sleeve 31 due to excessive external force, thereby causing disassembly of the connecting assembly 30. The inner flange 3112 supports the elastic member 34, and the cooperation between 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 member 32 in switching positions), ensuring that the state switching of the locking member 32 always remains within a preset range, thereby preventing locking failure or component damage due to excessive movement of the pin 33.

[0035] Furthermore, in the present application, assembly accuracy compensation and adjustable elastic force are achieved through thread adjustment. During assembly, the axial position of the nut 35 within the first through hole 311 can be fine-tuned by rotating the nut 35, thereby adjusting the spacing between the outer flange 332 and the inner flange 3112, and indirectly controlling the initial compression of the elastic member 34 (i.e., the elastic force). This adjustment function can compensate for part processing errors (such as the length of the pin 33 and the dimensional deviation of the elastic member 34), ensuring that even with slight dimensional errors, the nut 35 can still be adjusted to achieve the optimal fit of the components, thereby improving assembly accuracy. Furthermore, the nut 35 and threaded connection achieve detachability. When the elastic member 34, pin 33, or locking member 32 needs to be replaced, the pin 33 and related components can be removed by simply unscrewing the nut 35 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 shaft 33 to move axially, and the nut 35 is tightly fitted with the outer flange 332 after being threaded and tightened, which can form a continuous axial constraint on the pin shaft 33, reduce the loosening or displacement of the pin shaft 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.

[0036] like Figure 8 and Figure 9 As shown, the polishing assembly further includes a first rolling component 40, which is provided on the mounting portion 11 and / or the connecting portion 21, and the connecting portion 21 contacts the surface facing the mounting portion 11 through the first rolling component 40. Specifically, the first rolling component 40 can be provided on the mounting portion 11, or on the connecting portion 21, or on both the mounting portion 11 and the connecting portion 21. This application does not make specific limitations, and this application shows the case where the first rolling component 40 is provided on the connecting portion 21. When the first rolling component 40 limits the radial positioning of the polishing disc 20 during the polishing process and reduces the friction of the polishing disc 20 when it moves up and down, the life of the component is extended and the reliability and stability of the connection are improved.

[0037] During actual operation, the connecting portion 21 and the mounting portion 11 may experience relative displacement (such as minor adjustments due to polishing forces or positional alignment during assembly). Traditional sliding contact results in high resistance due to the high coefficient of friction, which not only consumes more power but also easily causes wear due to friction, shortening the life of the components. The first rolling member 40 converts sliding friction into rolling friction through rolling contact, significantly reducing resistance during relative motion and energy loss. Furthermore, rolling friction causes minimal wear on the contact surfaces, significantly extending the service life of the mounting portion 11 and the connecting portion 21 and reducing maintenance costs. Furthermore, the first rolling member 40 makes point or line contact with the contact surface, resulting in a small contact area. This reduces the accumulation of contaminants in the contact area during polishing, and the rolling process can "crush" or displace small impurities to a certain extent, reducing the risk of motion failure caused by contaminants. Furthermore, during polishing, the first rolling member 40 can transfer and distribute concentrated pressure across the contact surface, reducing the pressure per unit area (especially when multiple first rolling members 40 are used for even distribution). This protects the surface accuracy of the mounting portion 11 and the connecting portion 21 and maintains long-term mating stability.

[0038] Furthermore, along the rotational direction of the polishing disk 20, the connecting portion 21 has a first side surface 212 and a second side surface 213, respectively. The polishing assembly further 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 and the mounting portion 11 are in contact with each other via the second rolling member 50. For example, the second rolling member 50 can be disposed 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, the connecting portion 21, or both. In the present application, it is preferred that the second rolling member 50 be disposed on the first side surface 212 of the connecting portion 21. In the present application, the rotational direction of the polishing disk 20 is fixed counterclockwise. The first side surface 212 serves as the primary load-bearing surface in the rotational direction, directly bearing loads in that direction. Therefore, simply disposing the second rolling member 50 on the first side surface 212 can buffer impact forces in the rotational direction, reduce structural wear, and extend the service life of the component.

[0039] As the polishing pad 20 rotates, the connecting portion 21 is subjected to torque or inertial forces in the rotational direction, potentially causing the connecting portion 21 to deviate or wobble relative to the mounting portion 11 in the rotational direction, affecting polishing accuracy. The second rolling member 50 is disposed between the first side surface 212 (the front end surface in the rotational direction) and the mounting portion 11. This rolling contact allows for minor adjustments of the connecting portion 21 during normal rotation of the polishing pad 20, while also limiting excessive displacement of the connecting portion 21 in the rotational direction through the rigid support provided by the second rolling member 50. This dual function of "guiding and limiting" ensures the stability of the polishing pad 20 during rotation.

[0040] like Figure 5 and Figure 6 As shown, the first rolling component 40 and the second rolling component 50 each 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. For example, in the present application, the rolling bearing 41 may be a needle roller bearing. Through the coordination 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, and ensure more stable friction characteristics of the first rolling component 40 and the second rolling component 50, thereby extending the service life of the equipment.

[0041] Furthermore, the fixing pin 42 is passed through the rolling bearing 41 and the retaining ring 43 and fixed to the mounting portion 11 or the connecting portion 21, providing precise axial and radial positioning for the rolling bearing 41, preventing the rolling component from loosening, falling off or position shifting during movement, and ensuring that it always functions at the preset contact position.

[0042] Furthermore, a retaining ring 43 is disposed between the rolling bearing 41 and the mounting portion 11 (or connecting portion 21). This evenly distributes the load transmitted by the rolling bearing 41 to the surface of the mounting portion 11 or connecting portion 21 through the retaining ring 43, thereby preventing localized stress concentration caused by a small contact surface 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 the present application, the retaining ring 43 is configured as a hard retaining ring (metal) that, through precision machining, ensures parallelism with the rolling bearing 41, assists in adjusting the mounting posture of the rolling bearing 41, and ensures stable contact. Furthermore, the retaining ring 43 isolates the rolling bearing 41 from direct contact with the mounting portion 11 or connecting portion 21, preventing electrochemical corrosion or increased wear caused by material differences (e.g., metal versus plastic) or surface treatments (e.g., plating or roughness). Furthermore, the retaining ring 43 prevents contaminants such as dust and debris from entering the interior of the rolling bearing 41, thereby protecting the bearing's lubrication properties.

[0043] Furthermore, in the present application, a screw 44 may be provided on the first rolling member 40 or the second rolling member 50 to further lock the fixing pin 42 through the screw 44 to prevent the fixing pin 42 from falling during the polishing process, thereby improving the installation stability of the first rolling member 40 and the second rolling member 50. Figure 6 FIG. 4 shows the installation of the screw 44 and the fixing pin 42 .

[0044] In this application, the specific installation positions of the first rolling component 40 and the second rolling component 50 are not limited. A suitable installation position is selected according to actual production conditions, as long as the friction force when the polishing disk 20 moves up and down can be reduced and the polishing disk 20 can be positioned radially and circumferentially.

[0045] like Figure 1 and Figure 2 As shown, the mounting portions 11 include at least three, and at least three mounting portions 11 are sequentially spaced apart along the circumferential direction of the connecting disk 10 ; the connecting portions 21 include at least three, and at least three connecting portions 21 are sequentially spaced apart along the circumferential direction of the polishing disk 20 .

[0046] For example, in the application, the number of mounting parts 11 can be 3, 4, or more than 4; the number of first avoidance holes 12 can also be 3, 4, or more than 4; in addition, the number of connecting parts 21 can also be 3, 4, or more than 4. In the present application, it is preferred that the number of mounting parts 11, connecting parts 21, and first avoidance holes 12 are all 3. With such an arrangement, the stability of the triangle is utilized to achieve the connection stability between the connecting disk 10 and the polishing disk 20. The three points determine a unique plane, and the line connecting any two points can form a mutually constrained force arm, which can evenly distribute the radial force and axial force on the polishing disk 20 to the three connection points, avoiding single-point overload. If the number of mounting parts 11, connecting parts 21, and first avoidance holes 12 is 2, only translation can be restricted, and rotation around the connecting line cannot be constrained. The polishing disk 20 is prone to swinging during rotation, generating eccentric vibration. If the number is 4 or more, multiple points are prone to cause partial connection due to manufacturing errors, which in turn forms an unstable state of single-point or two-point stress, aggravating local loss. In addition, if the number is large, it is inconvenient to load and unload the polishing disc 20 and increases production costs.

[0047] like Figures 1 to 4 、 Figure 8 and Figure 9As shown, the polishing assembly further includes a stop plate 60. Specifically, the stop plate 60 is disposed on the connecting assembly 30 and is located on the side of the connecting portion 21 facing away from the mounting portion 11. The maximum width of the stop plate 60 is greater than the maximum width of the second optical hole 211. In the present application, the polishing disc 20 and the connecting disc 10 are floatingly connected via the connecting assembly 30 and the second optical hole 211, and a clearance fit is provided between the connecting assembly 30 and the second optical hole 211. However, when the polishing device is operating (e.g., rotating at high speed, vibrating) or when the polishing disc 20 is being loaded or unloaded, if the polishing disc 20 experiences significant displacement in the axial direction (away from the connecting disc 10), it may slip off the connecting assembly 30 (especially when the second optical hole 211 has a large axial length). The maximum width of the stop plate 60 is greater than the maximum width of the second optical aperture 211 and is located on the side of the connecting portion 21 facing away from the mounting portion 11. As a result, when the polishing disc 20 moves axially outward (away from the connecting disc 10), the stop plate 60 contacts and engages the surface of the connecting portion 21 (the edge of the second optical aperture 211). This mechanical barrier limits the maximum axial displacement of the polishing disc 20, preventing it from falling off the connecting assembly 30 and ensuring safe and stable operation of the equipment. In this application, the stop plate 60 is directly disposed on the connecting assembly 30, reducing the number of parts, processing costs, and assembly difficulty.

[0048] Optionally, the polishing assembly further includes a connector (not shown) that connects the connecting assembly 30 to the mounting portion 11. For example, the connector can be a rope, wire, or the like. 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 removed, the connector connects the connecting assembly 30 to the mounting portion 11 via the connector, preventing loss of the connecting assembly 30.

[0049] like Figures 1 to 4 As shown, the top of the connecting disc 10 is also equipped with multiple reinforcing ribs 13, and multiple drainage holes 14 are provided on the side walls of the connecting disc 10. The reinforcing ribs 13 effectively distribute the loads (such as pressure and vibration during the polishing process) borne by the top of the connecting disc 10 by increasing its structural thickness (or forming a grid / support structure), thereby reducing bending or twisting deformation caused by these forces. In particular, when the connecting disc 10 drives the polishing disc 20 at high speed, structural vibration caused by centrifugal force or external forces is avoided, ensuring overall operational stability. The drainage holes 14 quickly drain waste liquid and debris from the polishing process, preventing them from accumulating between the connecting disc 10 and the polishing disc 20 or adhering to the polishing surface, thereby minimizing interference with polishing accuracy. Furthermore, the drainage holes 14 reduce liquid resistance and energy consumption, thereby improving the operating efficiency of the polishing device. Furthermore, the drainage holes 14 prevent waste liquid from seeping through gaps in the connecting disc 10 into internal components (such as bearings and fasteners 70), reducing the risk of liquid corrosion or lubrication failure, and protecting the stability of core components.

[0050] Recombination Figures 1 to 9 As shown, the present application also provides a grinding and polishing device, which includes the above-mentioned grinding and polishing assembly. Therefore, the grinding and polishing device provided in this embodiment includes all the technical effects of the above-mentioned grinding and polishing assembly. Since the technical effects of the grinding and polishing assembly have been described in detail above, they will not be repeated here.

[0051] For ease of description, spatially relative terms such as "above," "on the upper surface of," "on top of," etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "on top of" other devices or structures would then be positioned as "below" or "below" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0052] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the present invention.

Claims

1. A grinding and polishing assembly, characterized in that: include: A connecting disk (10), wherein the connecting disk (10) is provided with a plurality of mounting portions (11) and a plurality of first avoidance holes (12), the plurality of mounting portions (11) and the plurality of first avoidance holes (12) are provided in a one-to-one correspondence, the first avoidance holes (12) are provided through the connecting disk (10) in a thickness direction, the mounting portion (11) is provided on a top surface of the connecting disk (10) and close to the first avoidance holes (12), and each mounting portion (11) is provided with a first light hole (111); A polishing disc (20), wherein a plurality of connecting portions (21) are provided on the polishing disc (20), the connecting portions (21) are provided in a one-to-one correspondence with the first avoidance holes (12), and each connecting portion (21) is provided with a second light hole (211); A connecting assembly (30), each connecting portion (21) is inserted into the corresponding first avoidance hole (12), and the connecting assembly (30) is sequentially inserted into the second light hole (211) and the first light hole (111) to detachably connect the polishing plate (20) to the connecting plate (10).

2. The grinding and polishing assembly according to claim 1, characterized in that: The second light hole (211) comprises a long strip hole, the long strip hole extends along the thickness direction of the connection plate (10), and the connection component (30) is clearance-matched with the long strip hole.

3. The grinding and polishing assembly according to claim 1, wherein: A limiting step (1111) is provided in the first light hole (111), and the connecting assembly (30) comprises: A pin sleeve (31), the pin sleeve (31) being detachably connected to the first light hole (111), a first through hole (311) being provided on the axis of the pin sleeve (31), and a second avoidance hole (3111) being provided on the inner wall surface of the first through hole (311); a locking member (32), the locking member (32) being arranged in the second avoidance hole (3111), the locking member (32) having a first position in which at least a portion of the locking member protrudes from the outer surface of the pin sleeve (31) and is stopped at the limiting step (1111), and a second position in which the locking member is retracted to the inner side of the second avoidance hole (3111); A pin shaft (33) is provided in the first through hole (311) and is movable along the axial direction of the first through hole (311). A pushing portion (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 portion (331) pushes the locking member (32) to switch from the first position to the second position.

4. The grinding and polishing assembly according to claim 3, characterized in that: An inner flange (3112) is provided on the inner wall surface of the first end of the first through hole (311), and the connecting assembly (30) further comprises: an elastic member (34), the elastic member (34) being arranged in the pin sleeve (31) and sleeved on the outer peripheral side of the pin shaft (33), with two ends of the elastic member (34) respectively abutting against the inner flange (3112) and the pushing portion (331); The pin shaft (33) is acted upon by an external force to overcome the elastic force of the elastic member (34) and drive the pushing portion (331) to push the locking member (32) from the first position to the second position, and the pin shaft (33) is acted upon by the elastic force of the elastic member (34) to drive the pushing portion (331) to push the locking member (32) from the second position to the first position.

5. The grinding and polishing assembly according to claim 4, characterized in that: An outer flange (332) is provided on the pin shaft (33), and a thread is provided on the inner wall surface of the second end of the first through hole (311). The connecting assembly (30) further comprises a nut (35), and the nut (35) is mounted on the first through hole (311) through the thread and is stopped on a side of the outer flange (332) away from the inner flange (3112).

6. The grinding and polishing assembly according to claim 1, wherein: The polishing assembly further comprises a first rolling component (40), the first rolling component (40) being arranged on the mounting portion (11) and / or the connecting portion (21), and the surface of the connecting portion (21) facing the mounting portion (11) is in contact via the first rolling component (40); and / or, Along the rotation direction of the polishing disc (20), the connecting portion (21) has a first side surface (212) and a second side surface (213) in sequence. The polishing assembly further comprises a second rolling component (50). The second rolling component (50) is arranged on the mounting portion (11) and / or the connecting portion (21). The first side surface (212) is in contact with the mounting portion (11) via the second rolling component (50).

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

8. The grinding and polishing assembly according to any one of claims 1 to 7, characterized in that: The mounting portions (11) include at least three, and the at least three mounting portions (11) are sequentially spaced apart along the circumferential direction of the connecting disk (10); the connecting portions (21) include at least three, and the at least three connecting portions (21) are sequentially spaced apart along the circumferential direction of the polishing disk (20).

9. The grinding and polishing assembly according to any one of claims 1 to 7, characterized in that: The polishing assembly further comprises a stop plate (60), the stop plate (60) being arranged on the connecting assembly (30) and located on a side of the connecting portion (21) facing away from the mounting portion (11), the maximum width of the stop plate (60) being greater than the maximum width of the second light hole (211); and / or, The grinding and polishing assembly further comprises a connecting piece, which connects the connecting assembly (30) to the mounting portion (11).

10. A grinding and polishing device, characterized in that: The grinding and polishing device comprises the grinding and polishing assembly according to any one of claims 1 to 9.

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