Bearing seat accessory, bearing assembly and friction device
By incorporating an annular body, cavity, and vacuum interface between the bearing and the roller, effective suction of dust, oil, and particles is achieved, solving the problem of contaminant contamination in friction equipment and improving the manufacturing quality of LCOS display products.
Patent Information
- Application Number
- CN202520210353.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-10
AI Technical Summary
During the manufacturing process of LCOS display products, oil and particles between the shaft and bearing of the friction equipment can easily adhere to the rollers or glass substrate of the friction equipment, affecting the grinding quality and reducing the manufacturing yield.
Design a bearing housing accessory including an annular body, a cavity, a through hole, and a vacuum interface. Dust, oil, and particles between the bearing and the roller are drawn into the cavity through the through hole and extracted from the vacuum interface by vacuum suction, thus preventing contaminants from adhering to the roller.
The grinding and polishing quality has been improved, thus increasing the manufacturing yield of LCOS display products.
Smart Images
Figure CN223754489U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of liquid crystal display manufacturing, and in particular to a bearing seat accessory, a bearing assembly and a friction device. BACKGROUND
[0002] Liquid Crystal On Silicon (LCOS) is a new type of reflective micro liquid crystal display technology. LCOS display products reflect light through a chip and modulate the light source to achieve the display effect. In the manufacturing process of LCOS display products, wafer grinding (chemical mechanical polishing) and glass substrate grinding usually involve polishing operations. For example, in the case of glass substrate grinding, a friction device is usually used to perform planar grinding on the surface of the glass substrate to remove defects and small defects on the surface of the glass substrate. However, the dirt and particles between the rotating shaft and the bearing of the friction device are easy to adhere to the drum of the friction device or the glass substrate, thereby affecting the grinding of the glass substrate and reducing the manufacturing yield of the LCOS display product. CONTENT OF THE INVENTION
[0003] Therefore, it is necessary to provide a bearing seat accessory, a bearing assembly and a friction device in view of at least one of the above problems.
[0004] In a first aspect, an embodiment of the present application provides a bearing seat accessory, comprising:
[0005] a ring-shaped body having a shaft hole;
[0006] a cavity provided in the ring-shaped body;
[0007] at least one through hole penetrating the ring-shaped body along the axial direction of the ring-shaped body and communicating with the cavity;
[0008] a vacuum interface provided on the ring-shaped body and communicating with the cavity.
[0009] The bearing seat accessory provided by the embodiment of the present application is used to be assembled on the bearing seat and located between the bearing and the drum. After assembly, the shaft hole of the ring-shaped body is coaxially arranged with the bearing, one end of the through hole faces the drum, the other end faces the bearing, and the vacuum interface is connected with the external vacuum device. In this way, when the friction device is working, the vacuum device is opened synchronously to perform vacuumizing, the dust, dirt and particles between the bearing and the drum enter the cavity from the through hole, and then are sucked out from the vacuum interface, so that the dust, dirt and particles are prevented from adhering to the drum, the grinding quality and polishing quality are improved, and the manufacturing yield is improved.
[0010] In one of the embodiments, the bearing seat accessory further comprises at least one groove provided on the hole wall of the shaft hole and communicating with the cavity.
[0011] In one of the embodiments, the bearing seat assembly includes a plurality of the grooves, and the plurality of the grooves are arranged along an axial direction of the shaft hole;
[0012] And / or, each of the grooves is arranged around an axial line of the shaft hole.
[0013] In one of the embodiments, a half of a difference between an outer diameter of the annular body and a diameter of the shaft hole is greater than a size of the groove along a radial direction of the shaft hole;
[0014] And / or, an axial size of the annular body is greater than a size of the groove along an axial direction of the shaft hole.
[0015] In one of the embodiments, the vacuum interface is arranged on a radial outer surface of the annular body.
[0016] In one of the embodiments, the bearing seat assembly includes a plurality of the through holes, and the plurality of the through holes are arranged on the annular body.
[0017] In one of the embodiments, the bearing seat assembly further includes a vacuum pipe connected with the vacuum interface, and the vacuum pipe is used to be connected with a vacuum device.
[0018] In one of the embodiments, an inner thread is arranged on a hole wall of the shaft hole;
[0019] And / or, a first fastening hole is arranged on the annular body, and the bearing seat assembly further includes a fastener, and the fastener is arranged through the first fastening hole and the bearing seat.
[0020] In a second aspect, the embodiments of the present application provide a bearing assembly, including:
[0021] A bearing seat;
[0022] A bearing assembled in the bearing seat;
[0023] The bearing seat assembly of the first aspect, is assembled in the bearing seat, and is coaxially arranged with the bearing.
[0024] The bearing assembly provided by the embodiments of the present application, after assembly, one end of the through hole on the annular body faces the roller, and the other end faces the bearing, and the vacuum interface is connected with the external vacuum device. In this way, when the friction device works, the vacuum device is opened synchronously to perform vacuumizing, and the dust, oil stains and particles between the bearing and the roller enter the cavity from the through hole, and then are sucked out from the vacuum interface, so as to avoid the dust, oil stains and particles from adhering to the roller, improve the grinding quality and polishing quality, and thus improve the manufacturing yield.
[0025] In a third aspect, the embodiments of the present application provide a friction device, including:
[0026] Roller;
[0027] Rolling shaft, connected with the roller;
[0028] The bearing assembly of the second aspect embodiment, the rolling shaft is arranged in the bearing and the bearing seat assembly.
[0029] The friction device provided by the embodiment of the application synchronously opens the vacuum device for vacuumizing in use, dust, oil stains and particles between the bearing and the roller enter the cavity from the through hole, and then are sucked out from the vacuum interface, so that the dust, oil stains and particles are prevented from adhering to the roller, the grinding quality and the polishing quality are improved, and the manufacturing yield is improved. BRIEF DESCRIPTION OF DRAWINGS
[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.
[0031] Figure 1 A front view of a bearing seat assembly provided by an embodiment of the application.
[0032] Figure 2 A top view of the bearing seat assembly shown in Figure 1
[0033] A left view of the bearing seat assembly shown in Figure 3 Figure 1 A side perspective view of the bearing seat assembly shown in
[0034] Figure 4 A structure schematic view of another bearing seat assembly provided by an embodiment of the application. Figure 1
[0035] A structure schematic view of another bearing seat assembly provided by an embodiment of the application. Figure 5
[0036] A structure schematic view of another bearing seat assembly provided by an embodiment of the application. Figure 6
[0037] A structure schematic view of a bearing assembly provided by an embodiment of the application. Figure 7
[0038] A structure schematic view of the bearing seat in Figure 8 Figure 7
[0039] Figure 9 A front view of a friction device provided for an embodiment of the present application.
[0040] Figure 10 A partial enlarged view of Figure 9
[0041] Figure 11 A diagram of the number of particles on the drum at different rotational speeds of a friction device in the related art.
[0042] Figure 12 A diagram of the number of particles on the drum at different rotational speeds of a friction device provided for an embodiment of the present application.
[0043] BRIEF DESCRIPTION OF DRAWINGS
[0044] 1000, friction device; 100, bearing assembly; 10, bearing housing fitting; 1, ring-shaped body; 1a, shaft hole; 2, cavity; 3, through hole; 4, vacuum interface; 5, vacuum pipe; 6, groove; 7, first fastening hole; 20, bearing housing; 200, drum; 300, roller. DETAILED DESCRIPTION
[0045] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application.
[0047] Spatially relative terms, such as "under", "below", "lower", "over", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the 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 a device described herein is turned over, elements described as "below" or "under" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can also be oriented in the other direction, and the spatially relative terms used herein are intended to encompass such additional orientations. It is to be understood that the 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 a device described herein is turned over, elements described as "below" or "under" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can also be oriented in the other direction, and the spatially relative terms used herein are intended to encompass such additional orientations.
[0048] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, in this specification, the term “and / or” includes any and all combinations of the associated listed items.
[0049] Firstly, referring to Figures 1-4 As shown, this application embodiment provides a bearing housing accessory 10, which can be assembled on a bearing housing 20. After assembly, the bearing housing accessory 10 is located between the bearing and the roller 200 of the friction device 1000.
[0050] Specifically, the bearing housing accessory 10 includes an annular body 1, a cavity 2, a vacuum interface 4, and at least one through hole 3. The annular body 1 has a shaft hole 1a. The cavity 2 is disposed within the annular body 1. The through hole 3 penetrates the annular body 1 along its axial direction and communicates with the cavity 2. The vacuum interface 4 is disposed on the annular body 1 and communicates with the cavity 2.
[0051] Here, the through-hole 3 acts as an adsorption port for dust, oil, and particles. The vacuum interface 4, connected to an external vacuum device, reduces the pressure inside the cavity 2. Specifically, after assembly, the shaft hole 1a of the annular body 1 is coaxially aligned with the bearing. One end of the through-hole 3 faces the roller 200, and the other end faces the bearing. The vacuum interface 4 is connected to an external vacuum device. Thus, when the friction device 1000 is working, it simultaneously activates the vacuum device to create a vacuum. Dust, oil, and particles between the bearing and the roller 200 enter the cavity 2 through the through-hole 3 and are then drawn out through the vacuum interface 4. This prevents dust, oil, and particles from adhering to the roller 200, improving grinding and polishing quality, and thus increasing manufacturing yield.
[0052] It should be noted that the through hole 3 can be a stepped through hole 3, a cylindrical through hole 3, a prismatic through hole 3, etc. The embodiments of this application do not impose any particular limitation on the shape of the through hole 3.
[0053] In one embodiment, such as Figure 4 As shown, the bearing housing accessory 10 also includes at least one groove 6, which is disposed on the bore wall of the shaft hole 1a and communicates with the cavity 2. It can be understood that the opening of the groove 6 is located on the bore wall of the shaft hole 1a, and the bottom of the groove 6 communicates with the cavity 2.
[0054] By setting the groove 6, it is equivalent to increasing the adsorption port near the shaft hole 1a of the annular body 1. In this way, the groove 6 can adsorb the contaminants in the area where the shaft hole 1a of the annular body 1 is located into the cavity 2, and the through hole 3 can adsorb the contaminants on both sides of the annular body 1 in the axial direction into the cavity 2, thereby further reducing the possibility of contaminants adhering to the roller 200.
[0055] In one of the embodiments, as shown in Figure 5 The bearing seat assembly 10 includes a plurality of grooves 6, and the plurality of grooves 6 are arranged along the axial direction of the shaft hole 1a. By setting the plurality of grooves 6, the area of the adsorption port on the shaft hole 1a can be large enough, which is beneficial to increase the adsorption force, so that the contaminants can be better adsorbed.
[0056] In one of the embodiments, as shown in Figure 4 and Figure 5 Each groove 6 is arranged around the axis of the shaft hole 1a, in other words, the groove 6 is an annular groove 6. In this way, the area of the adsorption port on the shaft hole 1a can be large enough, which is beneficial to increase the adsorption force, so that the contaminants can be better adsorbed.
[0057] It can be understood that the groove 6 can also be an arc-shaped groove 6. The specific shape of the groove 6 is not particularly limited in the embodiments of the present application.
[0058] In one of the embodiments, the difference between the outer diameter of the annular body 1 and the diameter of the shaft hole 1a is greater than half the size of the groove 6 in the radial direction of the shaft hole 1a. Here, the size of the groove 6 in the radial direction of the shaft hole 1a is the depth of the groove 6.
[0059] In this way, the groove 6 can avoid penetrating the annular body 1 in the radial direction of the annular body 1.
[0060] In one example, the size of the groove 6 in the radial direction of the shaft hole 1a is greater than 0.1mm, in other words, the depth of the groove 6 is greater than 0.1mm.
[0061] In one of the embodiments, the axial size of the annular body 1 is greater than the size of the groove 6 in the axial direction of the shaft hole 1a. Here, the size of the groove 6 in the axial direction of the shaft hole 1a is the width of the groove 6.
[0062] In this way, the groove 6 can avoid penetrating the annular body 1 in the radial direction of the annular body 1.
[0063] In one of the embodiments, the vacuum interface 4 is provided on the radial outer surface of the annular body 1, in other words, the vacuum interface 4 extends from the radial outer surface of the annular body 1 to the center direction of the annular body 1 and communicates with the cavity 2. In this way, it is convenient to connect the vacuum interface 4 with the external vacuum device.
[0064] In one of the embodiments, the bearing seat accessory 10 comprises a plurality of through holes 3, and the plurality of through holes 3 are arranged on the annular body 1 in a spaced manner. In this way, the annular body 1 can have more suction ports on both sides in the axial direction, which is conducive to increasing the suction force, so that the pollutants can be better adsorbed.
[0065] In one of the embodiments, the bearing seat accessory 10 further comprises a vacuum pipe 5 connected with the vacuum interface 4, and the vacuum pipe 5 is used to be connected with a vacuum device. In this way, when assembling, the external vacuum device can be connected with the vacuum pipe 5, so as to realize the communication between the vacuum device and the vacuum interface 4, and the connection difficulty between the vacuum device and the vacuum interface 4 is reduced.
[0066] It can be understood that the vacuum pipe 5 and the annular body 1 can be an integral component or a split component. When the vacuum pipe 5 and the annular body 1 are split components, the vacuum pipe 5 and the annular body 1 can be connected through threaded connection, bonding, clamping or the like.
[0067] In one of the embodiments, the hole wall of the shaft hole 1a is provided with an internal thread. In this way, the annular body 1 can be connected with the bearing seat 20 through threaded connection. It can be understood that in this case, the bearing seat 20 can be provided with a connecting shaft, and the connecting shaft is provided with an external thread and is screwed with the shaft hole 1a.
[0068] In one of the embodiments, as shown in Figure 6 , the annular body 1 is provided with a first fastening hole 7, and the bearing seat accessory 10 further comprises a fastener (not shown in the figure), and the fastener is arranged through the first fastening hole 7 and connected with the bearing seat 20. It can be understood that the bearing seat 20 is provided with a second fastening hole (not shown in the figure) corresponding to the first fastening hole 7, and the fastener is arranged through the first fastening hole 7 and the second fastening hole.
[0069] In this way, the bearing seat 20 and the bearing seat accessory 10 can be connected through the fastener, and the assembly difficulty is reduced.
[0070] Secondly, referring to Figure 7 and Figure 8 , the embodiment of the present application provides a bearing assembly 100, which can be assembled with the roller 300 of the friction device 1000.
[0071] Specifically, the bearing assembly 100 comprises the bearing seat accessory 10 of the first aspect, the bearing seat 20 and a bearing (not shown in the figure). The bearing is assembled in the bearing seat 20. The bearing seat accessory 10 is assembled in the bearing seat 20 and coaxially arranged with the bearing.
[0072] The bearing assembly 100 provided by the embodiment of the present application is used after assembly, one end of the through hole 3 on the annular body 1 is towards the roller 200, the other end is towards the bearing, and the vacuum interface 4 is connected with the external vacuum device. In this way, when the friction device 1000 works, the vacuum device is opened synchronously to perform vacuumization, the dust, oil stains and particles between the bearing and the roller 200 enter the cavity 2 from the through hole 3, and then are sucked out from the vacuum interface 4, so that the dust, oil stains and particles are prevented from adhering to the roller 200, the grinding quality and polishing quality are improved, and the manufacturing yield is improved.
[0073] In a third aspect, the embodiment of the present application provides a friction device 1000, which can be applied in the manufacturing process of an LCOS chip, such as grinding and polishing of a wafer or a glass substrate. Figure 9 Figure 10 As shown in the accompanying drawings, the embodiment of the present application provides a friction device 1000, which can be applied in the manufacturing process of an LCOS chip, such as grinding and polishing of a wafer or a glass substrate.
[0074] Specifically, the friction device 1000 comprises the bearing assembly 100 of the second aspect, the roller 200 and the roller shaft 300, wherein the roller shaft 300 is connected with the roller 200, and the roller shaft 300 is arranged in the bearing and the bearing seat assembly 10.
[0075] The friction device 1000 provided by the embodiment of the present application is used in use, the vacuum device is opened synchronously to perform vacuumization, the dust, oil stains and particles between the bearing and the roller 200 enter the cavity 2 from the through hole 3, and then are sucked out from the vacuum interface 4, so that the dust, oil stains and particles are prevented from adhering to the roller 200, the grinding quality and polishing quality are improved, and the manufacturing yield is improved.
[0076] In one of the embodiments, the friction device 1000 can further comprise a vacuum device (not shown in the drawings), which is connected with the vacuum pipe 5.
[0077] It should be noted that the friction device 1000 can be used in the following method, the friction device 1000 is started, the roller 200 rotates, and the vacuum device is opened to perform vacuumization. After grinding is completed, the friction device 1000 is turned off, the roller 200 stops rotating, and the vacuum device is closed, so that the vacuum device is in an open state when the roller 200 rotates.
[0078] Please refer to Figure 11 , wherein, Figure 11 For the friction device 1000 in the related art, the number of particles (1 μm or more) on the roller 200 when the friction device 1000 works at different rotating speeds, as can be seen from the figure, the faster the rotating speed, the more the number of particles on the roller 200, when the rotating speed is 300 rpm, the number of particles on the roller 200 is 58, when the rotating speed is 500 rpm, the number of particles on the roller 200 is 173, when the rotating speed is 1000 rpm, the number of particles on the roller 200 is 215, and when the rotating speed is 1500 rpm, the number of particles on the roller 200 is 433.
[0079] Please refer to Figure 12 As shown in the figure, wherein, Figure 12 For the friction device 1000 provided by the embodiment of the present application, the number of particles (1 μm or more) on the roller 200 when the friction device 1000 works at different rotating speeds, as can be seen from the figure, the faster the rotating speed, the more the number of particles on the roller 200, when the rotating speed is 300 rpm, the number of particles on the roller 200 is 0, when the rotating speed is 500 rpm, the number of particles on the roller 200 is 3, when the rotating speed is 1000 rpm, the number of particles on the roller 200 is 7, and when the rotating speed is 1500 rpm, the number of particles on the roller 200 is 12. By comparison, it can be known that the friction device 1000 provided by the embodiment of the present application can significantly reduce the number of particles on the roller 200 at the same rotating speed, which is beneficial to improve the grinding quality and the polishing quality, thereby improving the manufacturing yield.
[0080] In the description of the present specification, the description of the terms "some embodiments", "other embodiments", "ideal embodiments" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.
[0081] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features of the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present specification.
[0082] The above-described embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.
Claims
1. A chock fitting, characterized in that, The bearing housing assembly comprises: a ring-shaped body having a shaft hole; a cavity provided in the ring-shaped body; at least one through hole penetrating the ring-shaped body along the axial direction of the ring-shaped body and communicating with the cavity; a vacuum interface provided on the ring-shaped body and communicating with the cavity.
2. The bearing seat fitting of claim 1, wherein The bearing housing assembly further comprises at least one groove provided on the hole wall of the shaft hole and communicating with the cavity.
3. The bearing seat fitting of claim 2, wherein, The bearing housing assembly comprises a plurality of grooves, and the plurality of grooves are arranged at intervals along the axial direction of the shaft hole. And / or, each groove is arranged around the axial centerline of the shaft hole.
4. The bearing seat fitting of claim 2, wherein The difference between the outer diameter of the ring-shaped body and the diameter of the shaft hole is greater than half the size of the groove in the radial direction of the shaft hole. And / or, the axial dimension of the ring-shaped body is greater than the axial dimension of the groove in the axial direction of the shaft hole.
5. The bearing seat fitting of claim 1, wherein The vacuum interface is provided on the radial outer surface of the ring-shaped body.
6. The bearing seat fitting of claim 1, wherein The bearing housing assembly comprises a plurality of through holes, and the plurality of through holes are arranged at intervals on the ring-shaped body.
7. The bearing seat fitting of claim 1, wherein The bearing housing assembly further comprises a vacuum connector connected to the vacuum interface, and the vacuum connector is used to connect with a vacuum device.
8. The bearing seat fitting of claim 1, wherein The hole wall of the shaft hole is provided with an internal thread. And / or, a first fastening hole is provided on the ring-shaped body, and the bearing housing assembly further comprises a fastener, which is provided through the first fastening hole and connected with a bearing seat.
9. A bearing assembly characterized by, The bearing housing assembly comprises: a bearing seat; a bearing assembled in the bearing seat; The bearing housing assembly according to any one of claims 1-8 is assembled in the bearing seat and coaxially arranged with the bearing.
10. A friction device, characterized by The bearing assembly comprises: a roller; a roller shaft connected with the roller; The bearing assembly according to claim 9, wherein the roller shaft is provided through the bearing and the bearing housing assembly.