CN216883344U

CN216883344U - Polishing head, polishing device and polishing equipment for curved-surface shell

Info

Publication number: CN216883344U
Application number: CN202123172502.7U
Authority: CN
Inventors: 李倩倩; 陈亚兵; 付弦; 尹振武; 许仁
Original assignee: Weidali Industry Chibi Co ltd; Wanjin Industrial Chibi Co Ltd
Current assignee: Vidali Automotive Technology Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-07-05
Anticipated expiration: 2031-12-16

Abstract

The utility model provides a curved surface housing polishing head, a polishing device and polishing equipment. The polishing head of the curved surface shell comprises a top surface, a bottom surface and a side surface; the bottom surface is provided with a bottom surface polishing area, and the side surface is provided with a concave side surface polishing area; the side surface is provided with a top end connected with the top surface and a bottom end connected with the bottom surface, and the side surface polishing area is gradually and smoothly expanded outwards along the direction from the bottom end to the top end. A curved glass forming mold and a curved glass manufacturing device. The polishing head for the curved surface shell can be used for polishing a plane area and a curved surface area at the same time, and the steps of replacing a plane polishing workpiece and a curved surface polishing workpiece in the actual polishing process can be saved. Meanwhile, the side surface can profile the cambered surface area of the cambered surface shell so as to remarkably improve the polishing uniformity during the cambered surface polishing and improve the polishing yield.

Description

Polishing head, polishing device and polishing equipment for curved-surface shell

Technical Field

The utility model relates to the technical field of curved surface shell polishing, in particular to a curved surface shell polishing head, a polishing device and polishing equipment.

Background

Glass products have extremely wide application in portable electronic products. Along with the improvement of the requirements of users on the appearance and the service performance of electronic products, the structure of the glass gradually becomes fine and complicated. The 3D curved glass is a representative glass product with a complex preparation process, and the 3D curved glass with a large radian can bring more abundant service performance to a user.

Generally, 3D curved glass is formed by hot bending both sides of flat glass, and thus the 3D curved glass generally includes a flat surface and a curved surface. In the preparation process of the 3D curved glass, polishing of products is an essential process. However, polishing of complex curved surfaces has been a difficult point in the polishing process. In the conventional technology, different equipment and fixtures are usually selected for polishing a plane and an arc surface. Specifically, a brush is used for sweeping a plane area of the curved glass, a peripheral polisher brush is used for sweeping a cambered area at the edge, and different fixtures are required for each polishing process. However, the polishing method has complicated steps and low polishing efficiency, and is prone to cause uneven polishing at the polishing position.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a curved casing polishing head capable of improving polishing efficiency and polishing yield.

According to one embodiment of the present invention, it comprises a top surface, a bottom surface and side surfaces;

the bottom surface is provided with a bottom surface polishing area, the side surface is provided with a side surface polishing area in a concave curved surface shape, and the bottom surface polishing area and the side surface polishing area are arranged on the bottom surface; the side surface is provided with a top end connected to the top surface and a bottom end connected to the bottom surface, and the curved surface polishing area gradually and smoothly expands outwards along the direction from the bottom end to the top end.

In one embodiment, the bottom polishing area is planar.

In one embodiment, the side further has a first transition region thereon, the first transition region being located between the side polishing region and the bottom end.

In one embodiment, the cross-sectional diameter of the first transition region is fixed.

In one embodiment, the side further has a second transition region thereon, the second transition region being located between the side polishing zone and the apex.

In one embodiment, the cross-sectional diameter of the second transition region is fixed.

In one embodiment, the diameter of the bottom end is 10mm to 30 mm.

In one embodiment, the ratio of the diameter of the top end to the diameter of the bottom end is (1.5-2.5): 1.

In one embodiment, the bottom polishing region and the side polishing region each contain polishing micropowder for polishing glass or ceramic.

In yet another aspect, a curved housing polishing device comprises a holding rod and the curved housing polishing head according to any of the above embodiments, the holding rod being attached to the top surface of the curved housing polishing head.

On the other hand, the curved surface shell polishing equipment comprises a rotating motor, a curved surface shell clamp and the curved surface shell polishing device according to any one of the embodiments, wherein the rotating motor is connected to the fixing rod and used for driving the curved surface shell polishing head to polish a workpiece to be polished on the curved surface shell clamp.

The polishing head for the curved shell can be applied to the polishing process of the curved shell such as curved glass. Specifically, the bottom surface of the polishing head of the curved surface shell is suitable for polishing a plane area of the curved surface shell, and meanwhile, the side surface of the polishing head of the curved surface shell is also provided with a side surface polishing area which is concave and gradually and smoothly expands outwards, and the side surface polishing area can be attached to and polish the convex cambered outer frame of the curved surface glass. Therefore, the polishing head for the curved surface shell can be used for polishing a plane area and a curved surface area at the same time, and the steps of replacing a plane polishing workpiece and a curved surface polishing workpiece in the actual polishing process can be saved. Meanwhile, the side surface can profile the cambered surface area of the cambered surface shell so as to remarkably improve the polishing uniformity during the cambered surface polishing and improve the polishing yield.

Drawings

FIG. 1 illustrates a front view of a curved housing polishing head;

FIG. 2 illustrates a front view of a curved housing polishing device;

FIG. 3 shows a schematic view of polishing a curved housing using a curved housing polishing head;

wherein the reference symbols and their meanings are as follows:

100. a polishing head of the curved surface shell; 110. a bottom surface; 120. a side surface; 121. a first transition region; 122. a side polishing area; 123. a second transition region; 130. a top surface; 210. a connecting member; 220. fixing the rod; 310. a rotating electric machine; 400. a curved surface housing.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying embodiments and effect drawings. The examples set forth preferred embodiments of the utility model. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In addition, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a removable connection, and an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be interconnected between two elements. It should be understood that it is a matter of course that those skilled in the art can correspondingly understand the specific meanings of the above terms according to specific situations without causing ambiguity.

Unless otherwise defined, in the description of the present invention, terms indicating orientations or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings of the present invention, which are only for convenience and simplicity in describing the contents of the present invention, and help the reader understand in conjunction with the drawings, not for defining or implying a specific orientation that the referred device or element must have, and thus should not be interpreted as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

According to one embodiment of the utility model, a curved housing polishing head comprises a top surface, a bottom surface and a side surface, wherein the bottom surface is provided with a bottom surface polishing area, and the side surface is provided with a side surface polishing area in a concave curved surface shape; the side surface is provided with a top end connected with the top surface and a bottom end connected with the bottom surface, and the side surface polishing area is gradually and smoothly expanded outwards along the direction from the bottom end to the top end.

Wherein, the polishing head with the curved surface shell is a rotary polishing head. Specifically, the polishing head has a central axis, and an outer surface of the polishing head always coincides with an outer surface in an initial state when rotating around the central axis. It will be appreciated that for a rotating polishing head, the top and bottom surfaces are circular, as are the cross-sections of the sides perpendicular to the central axis.

It is understood that the polishing head for curved casing may be used in polishing curved casing, especially curved casing with flat area in the middle and cambered area on its sides. Further, although most of the curved shell in the prior art is made of glass, the curved shell polishing head can also be applied to polishing of curved shells made of ceramic, polymer and the like.

It is understood that the top, bottom and side surfaces of the curved housing polishing head are all outer surfaces. Wherein the bottom polishing zone and the side polishing zone are used for polishing, which should have a design corresponding to the polishing function. For example, the material of the entire curved housing polishing head may be used for polishing. Alternatively, the bottom polishing region is provided with a polishing material.

It is understood that the side polishing zone is smoothly flared, meaning that the cross-sectional diameter of the side polishing zone increases continuously without a sudden increase. The mode that the section diameter of the side polishing area is continuously increased is convex increase, uniform inclined increase or concave increase, wherein the concave increase means that the increasing speed of the section diameter of the side polishing area is gradually reduced along the direction from the bottom end to the top end. In the utility model, the side polishing area is concave so as to be suitable for the convex cambered surface of the convex cambered shell.

While the conventional art generally employs a polishing brush to sweep the glass, some prior art techniques that employ polishing heads to polish the glass generally only utilize the surface of a polishing head having a flat surface to polish flat glass. The inventor thinks that the side surface of the polishing head can be further designed to be contoured with respect to the convex arc surface of the curved housing, so that the polishing head can be applied to polishing not only a plane area but also an arc surface area. Therefore, the polishing head of the curved surface shell can be used for polishing a plane area and a cambered area at the same time, and the steps of replacing a plane polishing workpiece and a curved surface polishing workpiece in the actual polishing process can be saved. Meanwhile, the side surface can profile the cambered surface area of the cambered surface shell so as to remarkably improve the polishing uniformity during the cambered surface polishing and improve the polishing yield.

Wherein for a curved housing having a planar portion, the bottom polishing region can be used to polish the planar portion. Correspondingly, in one specific example, the bottom polishing area is planar. Of course, for curved glass with a slight curvature, the back side polished area can also be contoured to also have a certain curvature. In a particular design, the bottom surface polishing zone may occupy only a portion of the bottom surface, but the bottom surface polishing zone should be rotationally symmetric about a central axis of the polishing head. Further, the bottom surface polishing region occupies the entire bottom surface, i.e., the entire bottom surface can be used for polishing the curved casing.

In the actual use process, the side surface is also provided with a first transition area, and the first transition area is positioned between the side surface polishing area and the bottom surface. The first transition region is primarily for transitioning from the bottom surface to the side polishing region for polishing. This is mainly because the polishing head may wear during continuous use, and if the transition region is not provided, the wear of the side polishing region may affect the normal use of the bottom polishing region, or the wear of the bottom polishing region may affect the normal use of the side polishing region, and the first transition region is designed to play a role of buffering, so as to avoid the wear of the side polishing region or the wear of the bottom polishing region from affecting each other.

Wherein, the top surface of the curved surface casing polishing head can be used for connecting to a rotating motor to realize rotary polishing. In one specific example, the curved housing polishing head also has a second transition region on the side surface, the second transition region being disposed between the top end and the side polishing zone to prevent wear of the side polishing zone from affecting the top surface of the polishing head.

In one particular example, the first transition region has a fixed cross-sectional diameter. The side surfaces of the first transition region are thus cylindrical.

Optionally, the cross-sectional diameter of the second transition region is fixed. Whereby the side of the second transition area is also cylindrical.

In one specific example, the diameter of the bottom end is 10mm to 30 mm. It can be understood that the diameter of the bottom end is the diameter of the bottom surface, and the diameter of the bottom end is set to be 10 mm-30 mm, which is beneficial to uniformly polishing the curved glass. Optionally, the diameter of the bottom end is 15mm to 25 mm. Further optionally, the diameter of the bottom end is 20 mm.

In one specific example, the ratio of the diameter of the top end to the diameter of the bottom end is (1.5-2.5): 1. Optionally, the ratio of the diameter of the top end to the diameter of the bottom end is (1.8-2.3): 1. Further, the ratio of the diameter of the top end to the diameter of the bottom end is 2: 1.

Both the bottom polishing zone and the side polishing zone contain polishing particles for polishing glass or ceramic, considering the polishing process applied to curved shells of glass or ceramic, although other designs may be selected to achieve the bottom polishing zone and the side polishing zone. The specific manner in which the bottom polishing region and the side polishing region contain the fine powder may be to provide a polishing layer formed of the fine powder, or to embed the fine powder in the base material of the polishing head. Optionally, the substrate of the polishing head is a polymer material, such as silica gel or resin.

Specifically, the polishing fine powder may be a powder of alumina, silicon carbide, diamond, or the like. The mesh number of the polishing micro powder can be selected from 200-10000 meshes, and it can be understood that the polishing micro powder with different mesh numbers can be applied to polishing with different fineness degrees. The mesh number of the polishing micro powder on the same polishing head cannot be greatly different, for example, the mesh number of the polishing micro powder on the same polishing head is selected from 200 meshes to 1000 meshes, or 1000 meshes to 4000 meshes, or 4000 meshes to 10000 meshes.

To facilitate understanding of the specific structure of the curved-surface housing polishing head 100 of the present invention, reference is made to fig. 1, which is a front view of the curved-surface housing polishing head 100. The curved housing polishing head 100 includes a top surface 130, a bottom surface 110, and a side surface 120.

The bottom surface 110 has a bottom surface 110 polishing region, and the bottom surface 110 polishing region is planar.

Wherein the side 120 includes an upper first transition area 121, a side polishing area 122, and a second transition area 123. The first transition area 121 is vertical, and the cross-sectional diameter of the side 120 at the first transition area 121 is fixed. The second transition area 123 is also vertical, and the cross-sectional diameter of the side 120 at the second transition area 123 is fixed. The side polishing region 122 gradually flares outward smoothly from the bottom end to the top end, i.e., the cross-sectional diameter is continuously increased, and the side polishing region 122 is concave. The degree of concavity of the side polishing region 122 can be designed to be contoured according to the curvature of the rim of the particular curved glass.

Wherein, the base material of the polishing head is silica gel, and the polishing area of the bottom surface 110 and the side polishing area 122 of the polishing head are both doped with polishing micro powder.

Further, according to still another embodiment of the present invention, a curved housing 400 polishing device comprises the fixing lever 220 and the curved housing polishing head 100 of the above embodiment, wherein the fixing lever 220 is attached to the top surface 130 of the curved housing polishing head 100.

Referring to fig. 2, there is shown a schematic diagram of a curved housing 400 polishing device. The curved housing 400 polishing device includes the fixing lever 220, the connection member 210, and the curved housing polishing head 100 shown in fig. 1. The connecting member 210 is fixedly connected to the curved housing polishing head 100, and the fixing rod 220 is indirectly fixedly connected to the curved housing polishing head 100 through the connecting member 210. It is understood that the fixing rod 220 is further connected to an external rotation motor 310 to rotate the curved housing polishing head 100.

Further, still another embodiment of the present invention also provides a curved surface housing 400 polishing apparatus, which includes a rotating motor 310, a curved surface housing 400 jig, and the curved surface housing 400 polishing device of the above embodiment.

Referring to fig. 3, a curved surface housing 400 is clamped to fix a curved surface housing 400 to be polished, and a rotating motor 310 is connected to the fixing rod 220 and is used to drive a curved surface housing polishing head 100 to polish the curved surface housing 400 through the fixing rod 220. Further, FIG. 3 also shows that the side polishing region 122 of the curved housing polishing head 100 follows the curved rim of the curved housing 400.

In yet another aspect, the curved housing polishing head may be used in a manner that will be apparent from the description of the manner of use.

And fixing the curved glass shell subjected to hot bending forming on a curved shell clamp, and polishing the curved glass shell once by using a first curved shell polishing head. The polishing micro powder is processed in a bottom surface polishing area and a plane polishing area of the first curved surface shell polishing head, and the particle size of the polishing micro powder is 200-1000 meshes, specifically 600 meshes. In the process of primary polishing, the moving speed of the first curved surface shell polishing head is controlled to be 10 mm/min-100 mm/min, specifically 40 mm/min. The primary purpose of the primary polishing is to carve the base shape to the curved glass shell product.

And a second curved surface shell polishing head is adopted to carry out secondary polishing on the curved surface glass shell subjected to primary polishing. And the bottom surface polishing area and the plane polishing area of the second curved surface shell polishing head are subjected to micro-powder polishing treatment, and the particle size of the micro-powder is 1000-4000 meshes, specifically 2000 meshes. And in the secondary polishing process, controlling the moving speed of the second curved surface shell polishing head to be 10-100 mm/min, specifically 60 mm/min. The primary purpose of the secondary polishing is to rough polish the curved glass shell product.

And (4) polishing the curved glass shell subjected to secondary polishing for three times by using a third curved shell polishing head. And the bottom surface polishing area and the plane polishing area of the third curved surface shell polishing head are subjected to micro-powder polishing treatment, and the particle size of the micro-powder is 5000-10000 meshes, specifically 8000 meshes. And in the process of three times of polishing, controlling the moving speed of the third curved surface shell polishing head to be 10-100 mm/min, specifically 60 mm/min. The main purpose of the three-time polishing is to finish polish the curved glass shell product. And, condensed water is sprayed to assist polishing in each of the above-described polishing processes.

In the method for polishing the curved-surface shell by using the polishing head with the curved-surface shell, only three polishing heads with different polishing micro powder particle sizes are adopted, and the polishing equipment and the polishing clamp are not replaced. In the conventional technology, the polishing brush needs to be replaced for one time aiming at the plane and the curved surface respectively in each polishing process, and the polishing equipment and the clamp need to be replaced correspondingly. Therefore, the polishing process is greatly saved by adopting the polishing head with the curved surface shell. Meanwhile, the concave side polishing area of the polishing head is attached to the convex arc frame of the curved surface shell in a copying manner, so that the polishing is uniform, and the polishing yield can be effectively improved.

It should be understood that the above-mentioned embodiment is only one of the best possible modes of the present invention, and the size, position, shape, etc. of the components are set accordingly to realize the technical idea of the present invention, and the present invention is not limited to be realized only by the above-mentioned embodiment.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A polishing head of a curved surface shell is characterized by comprising a top surface, a bottom surface and a side surface;

the bottom surface is provided with a bottom surface polishing area, and the side surface is provided with a concave side surface polishing area; the side surface is provided with a top end connected to the top surface and a bottom end connected to the bottom surface, and the side surface polishing area gradually and smoothly expands outwards along the direction from the bottom end to the top end.

2. The curved housing polishing head as set forth in claim 1 wherein the bottom polishing zone is planar.

3. The curved housing polishing head as set forth in claim 2 further comprising a first transition area on the side between the side polishing zone and the bottom end.

4. The curved housing polishing head as set forth in claim 3 further comprising a second transition region on the side between the side polishing zone and the tip.

5. The curved housing polishing head as set forth in claim 4 wherein the first transition zone has a fixed cross-sectional diameter; and/or

The cross-sectional diameter of the second transition region is fixed.

6. The curved surface housing polishing head as set forth in any one of claims 1 to 5 wherein the bottom end has a diameter of from 10mm to 30 mm.

7. The curved housing polishing head as set forth in any one of claims 1 to 5 wherein the ratio of the diameter of the top end to the diameter of the bottom end is (1.5-2.5): 1.

8. The curved housing polishing head as set forth in any one of claims 1 to 5 wherein the bottom polishing zone and the side polishing zone each comprise polishing micro-powder for polishing glass or ceramic.

9. A curved housing polishing device comprising a holding rod and the curved housing polishing head according to any one of claims 1 to 8, wherein the holding rod is attached to the top surface of the curved housing polishing head.

10. The curved surface shell polishing device is characterized by comprising a rotating motor, a curved surface shell clamp and the curved surface shell polishing device according to claim 9, wherein the rotating motor is connected to the fixing rod and used for driving the curved surface shell polishing head to polish a workpiece to be polished on the curved surface shell clamp.