CN110757292A

CN110757292A - Shell polishing method, shell and electronic equipment

Info

Publication number: CN110757292A
Application number: CN201911085551.1A
Authority: CN
Inventors: 唐星
Original assignee: Shanghai Smell Information Technology Co Ltd
Current assignee: Shanghai Smell Information Technology Co Ltd; Shanghai Wentai Information Technology Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-02-07

Abstract

The invention discloses a shell polishing method, a shell and electronic equipment, wherein the shell polishing method comprises the following steps: s1, embedding a copying insert into the hole on the injection molded shell rough blank, wherein the copying insert comprises a copying surface, and when the copying insert is completely arranged in the hole, the copying surface and the outer surface of the shell rough blank are in smooth transition; s2, placing an assembly formed by the shell rough blank and the copying insert on a polishing and mounting jig; and S3, grinding the outer surface of the shell by utilizing the grinding wheel to follow the contour surface to obtain a shell finished product. According to the invention, the copying insert is embedded in the hole on the shell, when the grinding wheel polishes the surface of the shell, the grinding wheel is prevented from being in excessive contact with the periphery of the hole on the shell through the copying insert, and the grinding wheel is guided to polish the shell along the copying surface, so that the situation that the periphery of the hole is abraded too much to collapse is avoided, the surface of the shell is ensured to have better aesthetic property, and the appearance quality of electronic equipment is improved.

Description

Shell polishing method, shell and electronic equipment

Technical Field

The invention relates to the technical field of electronics, in particular to a shell polishing method, a shell and electronic equipment.

Background

At present, a shell of an electronic device such as a mobile phone battery cover is mostly formed by an injection molding process, when the shell is subjected to injection molding, due to the limitation of the structure of a mold, a parting line is usually formed on the preliminarily molded shell, and in order to improve the aesthetic property and the hand feeling of the shell of the electronic device, the parting line is usually ground to ensure the smooth transition of the surface of the shell; referring to fig. 1 and 2, the existing grinding method is generally to directly grind the parting line PL of the housing 10 by using the grinding wheel 20, however, a side key hole, a sound hole, etc. are usually required to be reserved on the periphery of the housing 10 of the electronic device, when the grinding wheel 20 is used for grinding, the grinding wheel 20 is tightly ground on the periphery of the housing 10, the parting line PL of the periphery of the housing 10 is in contact with the grinding wheel 20, when the grinding wheel 20 moves to the hole 11 formed in the housing 10, the position where the housing 10 is in contact with the grinding wheel 20 is no longer the parting line PL, but the edge of the hole 11, and thus, after grinding by the grinding wheel 20, the position where the edge of the hole 11 is located on the housing 10 is subjected to different levels of collapse regions 12, which affects the aesthetic property of the housing 10, and even affects the assembly of other.

Disclosure of Invention

In view of the defects of the prior art, an object of the present invention is to provide a casing polishing method, which is used to solve the problem of the collapse of the hole edge during the casing polishing process.

The second purpose of the invention is to provide a shell.

The third object of the present invention is to provide an electronic device.

In order to achieve the first purpose, the invention adopts the following technical scheme:

the shell polishing method comprises the following steps:

s1, embedding a copying insert into the hole on the injection molded shell rough blank, wherein the copying insert comprises a copying surface, and when the copying insert is completely arranged in the hole, the copying surface and the outer surface of the shell rough blank are in smooth transition;

s2, placing an assembly formed by the shell rough blank and the copying insert on a polishing and mounting jig;

and S3, grinding the outer surface of the shell by utilizing the grinding wheel to follow the contour surface to obtain a shell finished product.

Preferably, after step S2 and before step S3, the method further comprises the following steps:

and S21, arranging a pair of positioning pieces for positioning the copying inserts on the grinding and mounting jig.

Preferably, the positioning piece is a magnet arranged on the polishing and mounting jig, and the copying insert is matched with the positioning piece in a magnetic attraction manner.

Preferably, the positioning piece is a bolt arranged on the polishing and mounting jig, and the copying insert is screwed on the bolt.

Preferably, in step S1, the copying insert is fixed to the housing blank by a fixing member.

In order to achieve the second purpose, the invention adopts the following technical scheme:

the shell is manufactured by the shell polishing method.

In order to achieve the third purpose, the invention adopts the following technical scheme:

electronic equipment, including above-mentioned casing.

The invention has the beneficial effects that:

according to the invention, the copying insert is embedded in the hole on the shell, when the grinding wheel polishes the surface of the shell, the grinding wheel is prevented from being in excessive contact with the periphery of the hole on the shell through the copying insert, and the grinding wheel is guided to polish the shell along the copying surface, so that the situation that the periphery of the hole is abraded too much to collapse is avoided, the surface of the shell is ensured to have better aesthetic property, and the appearance quality of electronic equipment is improved.

Drawings

FIG. 1 is a schematic view of a prior art shell polishing process;

fig. 2 is a schematic view of a housing sanded by the method of fig. 1.

FIG. 3 is a schematic view of a state of the process of the present invention;

FIG. 4 is a schematic view of another state of the method of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

the shell polishing method is suitable for polishing shells of various electronic devices, and is mainly used for polishing parting lines of the shells after the shells are molded through an injection molding process so as to enable the outer surfaces of the shells to form smooth curved surfaces which are consistent with product design.

The following describes the present invention in detail by taking the processing of the battery cover of the mobile phone as an example.

Implementing one step:

the shell polishing method comprises the following steps:

s1, forming the battery cover blank 30 by injection molding, forming a parting line PL on the periphery of the battery cover blank, and meanwhile, forming a side keyhole 32 on the side of the battery cover blank 30 in order to match the installation of the mobile phone side key, as shown in fig. 3, embedding a copying insert 40 in the side keyhole 32, wherein the outer surface of the copying insert 40 forms a copying surface 41, when the copying insert 40 is completely placed in the side keyhole 32, the copying surface 41 and the outer surface of the battery cover blank 30 are in smooth transition, that is, the copying surface 41 just covers the opening area formed by the side keyhole 32 on the outer surface 31 of the battery cover blank 30, and the copying surface 41 has a shape consistent with the outer surface 31 of the battery cover blank 30;

s2, placing the battery cover rough blank 30 embedded with the copying insert 40 on a polishing and mounting jig 50 for positioning;

s3, as shown in fig. 4, the parting line PL of the battery cover blank 30 is ground by the grinding wheel 60, when the grinding wheel 60 moves around the periphery of the battery cover blank 30 to the side key hole 32, the grinding wheel 60 grinds the battery cover blank 30 along the curved surface 41, and after the grinding wheel 60 grinds around the periphery of the battery cover blank 30 for one or more times, the battery cover blank 30 is made into a battery cover finished product.

Example two:

compared with the method of the first embodiment, the method of the present embodiment performs the following steps after step S2 and before step S3:

and S21, arranging a positioning piece on the grinding and mounting jig 50, wherein the positioning piece is used for positioning the copying insert 40 so as to ensure that the copying insert 40 and the battery cover rough blank 30 are fixed.

In the step S21, the copy insert 40 and the battery cover blank 30 are fixed, so that the copy insert 40 is prevented from being displaced during polishing, and the polishing effect is prevented from being affected. The copying insert 40 can be made of steel with higher hardness, and further, wear-resistant materials such as manganese steel and the like can be adopted, so that the copying surface 41 of the copying insert 40 is prevented from keeping a fixed shape and being used for multiple times; the positioning member may be a magnet 51, and the magnetic attraction generated by the magnet 51 fixes the copying insert 40 on the grinding and mounting jig 50 to ensure that the copying surface 41 is covered at the position just covering the opening of the side keyhole 32. Of course, it is also possible to replace the magnets described above with a bolt to which the copying insert 40 is screwed, the bolt being fixed to the sanding mounting fixture 50. Of course, in order to keep the position of the copy insert 40 fixed during polishing and ensure that the finished battery cover is conveniently detached from the polishing installation jig 50 after polishing is completed, the copy insert 40 and the polishing installation jig may be connected by other components to achieve quick mounting and detaching of the copy insert 40, which is not necessarily stated herein.

In the second embodiment, the profiling insert 40 is first embedded in the side key hole 32, and then the positioning element is fixed with the polishing and mounting fixture 50 after the battery cover blank 30 is placed on the polishing and mounting fixture 50. The present invention can also be embodied in the method of the first embodiment, in step S1, after the copying insert 40 is inserted into the side key hole 32, the copying insert 40 and the battery cover blank 30 are fixed by a fixing member to form an assembly, and then the assembly is integrally placed on the grinding and mounting fixture 50 for grinding.

According to the method, the copying insert is embedded in the hole in the shell, when the grinding wheel grinds the surface of the shell, the copying insert prevents the grinding wheel from being in excessive contact with the periphery of the hole in the shell, and guides the grinding wheel to grind the shell along the copying surface, so that the situation that the periphery of the hole is abraded too much to collapse is avoided, the surface of the shell is ensured to have better attractiveness, and the appearance quality of electronic equipment is improved.

The above embodiments only take the mobile phone battery cover as an example, and the method of the present invention is described in detail, and actually, the method of the present invention is suitable for polishing of various electronic device housings.

The invention also provides a shell which is prepared by polishing by adopting the method. The electronic equipment comprises the mobile phone, a tablet computer, a notebook computer or some intelligent wearable equipment.

While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The shell polishing method is characterized by comprising the following steps:

2. The shell sanding method of claim 1, further comprising, after step S2 and before step S3, the steps of:

3. A housing grinding method as claimed in claim 2, wherein the locating member is a magnet provided on the grinding mounting jig, and the copying insert is magnetically engaged with the locating member.

4. A housing grinding method as claimed in claim 2, wherein the positioning member is a bolt provided on the grinding mounting jig, and the copying insert is screwed to the bolt.

5. The method of claim 1, wherein in step S1, the conformable insert is secured to the shell blank by a fastener.

6. A shell, characterized in that it is made by the shell polishing method as claimed in any one of claims 1 to 5.

7. An electronic device, comprising the housing of claim 6.