CN110524790B - Middle frame manufacturing method, middle frame and electronic equipment - Google Patents
Middle frame manufacturing method, middle frame and electronic equipment Download PDFInfo
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- CN110524790B CN110524790B CN201910817528.0A CN201910817528A CN110524790B CN 110524790 B CN110524790 B CN 110524790B CN 201910817528 A CN201910817528 A CN 201910817528A CN 110524790 B CN110524790 B CN 110524790B
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- frame
- blind hole
- middle plate
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a method for manufacturing a middle frame, which comprises the following steps: providing a metal middle plate; a plastic frame is formed on the outer periphery of the middle plate in an injection molding mode, and a blind hole is formed in a position of a side hole which is preset in the frame; performing paint spraying treatment and electroplating treatment on the outer surface of the frame; the blind hole is processed into a through hole through CNC (computer numerical control) processing so as to obtain a preset side hole, and the milling cutter avoids the opening part of the blind hole in the CNC processing process. Meanwhile, a middle frame and an electronic device are provided. The invention has the beneficial effects that: when the middle frame is manufactured, the plastic frame is injection molded on the periphery of the middle plate made of metal, metal luster is given to the frame through paint spraying treatment and electroplating treatment, and aiming at the side holes in the frame, the problem is solved by adopting a mode of firstly injection molding a blind hole and then communicating with a CNC (computer numerical control), the appearance of the frame is guaranteed to be good, and the purposes of reducing the processing difficulty and improving the working efficiency are achieved.
Description
Technical Field
The present invention relates to the field of electronic product manufacturing technologies, and in particular, to a method for manufacturing a middle frame, and an electronic device.
Background
Most mobile terminals employ a combination of a front cover, a middle frame, and a rear cover to form a basic frame structure of a product. The front cover is mainly used for installing the display screen, and in some designs, a full-screen design can be adopted, namely the display screen replaces the front cover in the traditional sense. The middle frame is a carrier of most electronic devices of the mobile terminal and is a core part of the mobile terminal. The rear cover covers one surface of the middle frame, which is back to the display screen, and is used for protecting the electronic devices on the middle frame.
Most of the traditional middle frames are all metal products, the whole weight is large, various detailed characteristics of metal materials need to be refined through CNC machining in the manufacturing process, machining difficulty is large, and working efficiency is low.
Disclosure of Invention
Based on the method, the plastic frame is injection molded on the periphery of the metal middle plate, the frame is endowed with metal luster through paint spraying treatment and electroplating treatment, and aiming at the side holes on the frame, a mode of injection molding blind holes and then CNC (computer numerical control) punching is adopted to ensure good appearance of the frame, so that the aims of reducing processing difficulty and improving working efficiency are fulfilled.
A manufacturing method of a middle frame comprises the following steps:
providing a metal middle plate;
a plastic frame is formed on the outer periphery of the middle plate in an injection molding mode, and a blind hole is formed in a position of a side hole preset in the frame;
performing paint spraying treatment and electroplating treatment on the outer surface of the frame;
the blind hole is processed into a through hole through CNC (computer numerical control) processing so as to obtain a preset side hole, and the milling cutter avoids the opening part of the blind hole in the CNC processing process.
The manufacturing method of the middle frame adopts the mode of combining the middle plate made of metal and the side frame made of plastic to manufacture the middle frame. The outer peripheral edges of the middle plate made of metal obtain the frame made of plastic through injection molding's mode to reduce the frame preparation degree of difficulty in the middle frame manufacture process, after the frame shaping, make the surface of frame possess metallic luster through the processing of spraying paint and electroplating treatment. Meanwhile, the side holes in the frame are formed into blind holes in the injection molding process, and after the painting treatment and the electroplating treatment are finished on the outer surface of the frame, the blind holes are punched into through holes through CNC machining to obtain the required side holes. And in the process of drilling through the blind hole, the milling cutter avoids the opening part of the blind hole, so that the milling cutter is prevented from damaging paint and an electroplated layer at the opening part of the side hole, and the good appearance of the frame is ensured. Through the design, the frame of the peripheral injection moulding plastic system of the medium plate of metal system, rethread processing of spraying paint and electroplating treatment give the frame with metallic luster to the side opening on the frame, adopt the mode of injection moulding blind hole earlier after CNC to get through to solve, guarantee that the outward appearance of frame is good, thereby reach the purpose that reduces the processing degree of difficulty and improve work efficiency.
In one embodiment, in the step of providing the middle plate made of metal, the middle plate is obtained by die-casting, or the middle plate is obtained by CNC machining after die-casting. The middle plate can be obtained in various manners, such as die-casting molding, CNC machining, or combination of die-casting molding and CNC machining, and the machining manner meeting the requirements is selected according to the precision requirement of the product.
In one embodiment, in the step of providing the metal-made middle plate, the middle plate includes: the plate body and the surrounding edge connected to the outer periphery of the plate body; and the frame of plastic system is made at the outer peripheral edge injection moulding of medium plate to in the step of the side opening position shaping blind hole of predetermineeing on the frame, the frame shaping is on the surrounding edge and the cladding is at the surface of surrounding edge. The plate body is used as a main carrier of the electronic device, and the surrounding edge is used as a metal support frame for forming the frame, so that the strength of the formed frame can be improved.
In one embodiment, the surrounding edge is provided with a first clamping groove; the frame is provided with a first buckling part for buckling the first clamping groove. After the frame is formed, the first clamping portion and the first clamping groove form a stable clamping structure, so that the connection stability between the middle plate and the frame can be improved.
In one embodiment, the plate body is provided with a second clamping groove; the frame is provided with a second clamping part which extends to the plate body and is buckled with the second clamping groove. After the frame is formed, the second clamping portion and the second clamping groove form a stable clamping structure, and the connection stability between the middle plate and the frame can be improved.
In one embodiment, a plastic frame is injection molded on the outer periphery of the middle plate, and in the step of molding a blind hole at a position of a side hole preset on the frame, the blind hole is located on the outer surface of the frame and has an opening facing the outer side of the frame. The blind hole sets up in the surface of frame and the opening is towards the outside of frame for subsequent CNC processing gets through the in-process of blind hole, and milling cutter dodges the opening of blind hole more easily, and milling cutter's processing vestige remains in the inner wall and the bottom region of blind hole, protects the outward appearance of frame better.
In one embodiment, the blind hole is in the shape of a tapered hole with a wide outer part and a narrow inner part. The blind hole is the design of the taper hole with the wide outside and the narrow inside, so that the milling cutter can better avoid the opening part of the blind hole, and the inner wall and the bottom area of the blind hole can be processed more easily.
In one embodiment, after the step of injection molding a plastic frame around the middle plate and forming blind holes at the positions of the preset side holes on the frame, and before the step of performing painting treatment and electroplating treatment on the outer surface of the frame, the method further comprises the steps of: and polishing the outer surface of the frame to improve the finish and the flatness of the outer surface of the frame. Before the frame is subjected to paint spraying treatment and electroplating treatment, the frame is polished, so that the smoothness and the flatness of the outer surface of the frame can be improved, and the appearance of the sprayed and electroplated frame is good.
Meanwhile, the invention also provides a middle frame.
The middle frame is manufactured by the method for manufacturing the middle frame in any one of the embodiments. The advantage of this center lies in, when making this center, at the frame of the peripheral injection moulding plastic system of the medium plate of metal system, the rethread is painted the processing and is given the frame with metallic luster with electroplating treatment to the side opening on the frame, adopt the mode of CNC after the injection moulding blind hole to get through to solve, guarantee that the outward appearance of frame is good, thereby reach the purpose that reduces the processing degree of difficulty and improve work efficiency.
Meanwhile, the invention also provides electronic equipment
An electronic device comprises the middle frame of the embodiment. This electronic equipment's advantage lies in, when the preparation center, at the frame of the peripheral injection moulding plastic system of the medium plate of metal system, the rethread is painted the paint and is handled and the electroplating process gives the frame with metallic luster to side opening on the frame, adopt the mode of CNC after the injection moulding blind hole of elder generation to get through to solve, guarantee that the outward appearance of frame is good, thereby reach the purpose that reduces the processing degree of difficulty and improve work efficiency.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for manufacturing a middle frame according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a middle plate in the middle frame manufacturing method shown in FIG. 1;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is an enlarged schematic view of portion B of FIG. 2;
FIG. 5 is a schematic diagram of a middle plate in the middle frame manufacturing method shown in FIG. 1 after a frame is formed by injection molding;
FIG. 6 is a partial schematic view of the bezel of FIG. 5;
FIG. 7 is a schematic view of the bezel of FIG. 5;
FIG. 8 is an enlarged view of portion C of FIG. 7;
FIG. 9 is an enlarged schematic view of detail D of FIG. 7;
fig. 10 is a cross-sectional view of the blind hole of fig. 9.
The meaning of the reference symbols in the drawings is:
10-middle plate, 11-plate body, 111-second clamping groove, 12-surrounding edge, 121-first clamping groove;
20-frame, 21-blind hole, 22-first fastening part, 23-second fastening part, 231-convex tooth.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. 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 on 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.
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 invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Fig. 1 to 10 show a method for manufacturing a middle frame according to an embodiment of the present invention.
As shown in fig. 1, the method for manufacturing the middle frame includes the steps of:
s10: a metal middle plate 10 is provided.
As shown in fig. 2, a metal intermediate plate 10 is provided, and the intermediate plate 10 is a metal plate manufactured in advance. For example, in the present embodiment, the intermediate plate 10 is formed by die-casting, for example, by die-casting using a die. In other embodiments, the middle plate 10 may be a metal blank machined by CNC. Or, a blank of the middle plate 10 is formed through a die-casting die, and then the blank is finished through CNC machining. In practical applications, the manufacturing method of the middle plate 10 is selected according to the precision of the current forming process and the precision requirement of the product. The die-casting molding mode is most efficient and convenient, but the precision of the die-casting molding mode is lower than that of CNC machining. And the mode of directly adopting CNC to process metal blank is relatively low in efficiency and difficult in die-casting forming. Therefore, the die-casting forming and the CNC machining can be combined, namely, the die-casting forming is carried out firstly, and then the CNC machining is carried out for fine trimming. For the obtaining mode of the metal middle plate 10, a processing mode meeting the requirement can be selected according to the precision requirement of the product.
S20: a plastic frame 20 is injection molded on the outer periphery of the middle plate 10, and a blind hole 21 is formed at a position of a side hole predetermined on the frame 20.
As shown in fig. 5 and 7, the middle plate 10 is put into an injection mold and subjected to an injection molding process, so that a plastic material is attached to the outer periphery of the middle plate 10 and a plastic rim 20 is molded. And, considering that the outer side of the finished middle frame needs to be provided with a side hole, a blind hole 21 is formed at the position of the preset side hole. It should be noted that the side holes on the frame 20 in this embodiment are not limited to all the hole locations on the frame 20, and may refer to some or all the hole locations on the frame 20. Generally, the side holes refer to sound output holes, card pin holes, MIC holes, key holes, and the like formed on the frame 20, or some through hole structures that are difficult to be directly formed by an injection mold due to small size.
As shown in fig. 5, in the present embodiment, the blind hole 21 is located on the outer surface of the frame 20 and opens toward the outer side of the frame 20. The blind hole 21 is disposed on the outer surface of the frame 20 and opens toward the outer side of the frame 20, and when the subsequent blind hole 21 is opened, the inner wall and the bottom area of the blind hole 21 are processed inward from the outer side of the frame 20 by a milling cutter. Moreover, in the subsequent process of punching through the blind hole 21 by CNC machining, the milling cutter can more easily avoid the opening part of the blind hole 21, and the machining traces of the milling cutter are remained on the inner wall and the bottom area of the blind hole 21, so that the appearance of the frame 20 is better protected.
Further, as shown in fig. 10, the shape of the blind hole 21 is preferably a tapered hole with a wide outside and a narrow inside. The blind hole 21 is designed as a tapered hole with a wide outer part and a narrow inner part, so that a milling cutter can better avoid the opening part of the blind hole 21, and the inner wall and the bottom area of the blind hole 21 can be processed more easily.
In addition, since the strength of the plastic bezel 20 is weaker than that of the metal bezel, the structures of the panel 10 and the bezel 20 can be improved.
For example, as shown in fig. 2, in S10, the midplane 10 includes: a plate body 11 and a surrounding edge 12 connected to an outer periphery of the plate body 11. As shown in fig. 2, in S20, the frame 20 is formed on the surrounding edge 12 and covers the outer surface of the surrounding edge 12. The plate 11 serves as a main carrier of the electronic device, and the surrounding edge 12 serves as a metal support frame for molding the frame 20, so that the strength of the frame 20 after molding can be improved. It should be noted that, corresponding avoiding holes or gaps may be reserved in the position of the surrounding edge 12 corresponding to the preset side holes.
Further, in order to enhance the coupling force between the rim 20 and the middle plate 10, a structure for enhancing the connection stability between the middle plate 10 and the rim 20 may be further provided.
For example, as shown in fig. 3, in the present embodiment, the surrounding edge 12 is provided with a first locking groove 121. As shown in fig. 8, the frame 20 has a first locking portion 22 for locking the first locking groove 121. After the frame 20 is formed, the first fastening portion 22 and the first fastening groove 121 form a stable fastening structure, so that the connection stability between the middle plate 10 and the frame 20 can be improved. For example, as shown in fig. 3, in the present embodiment, a plurality of first locking grooves 121 with narrow outer portions and wide inner portions are distributed on the peripheral edge 12, and accordingly, as shown in fig. 8, after the frame 20 is molded, a first locking portion 22 with narrow outer portions and wide inner portions is formed on the inner side of the frame, and the first locking groove 121 and the second locking portion 23 are tightly locked together.
It should be noted that, in other embodiments, the first locking groove 121 may be disposed on the frame 20, and the first locking portion 22 is disposed on the middle plate 10.
For another example, as shown in fig. 4, in the present embodiment, the plate body 11 is provided with a second slot 111. As shown in fig. 9, the frame 20 is provided with a second locking portion 23 extending to the board 11 and engaging with the second locking groove 111. After the frame 20 is formed, the second fastening portion 23 and the second fastening groove 111 form a stable fastening structure, so that the connection stability between the middle plate 10 and the frame 20 can be improved.
Further, in order to strengthen the combining force between the second locking groove 111 and the second locking portion 23, in the present embodiment, a protrusion for improving the combining force, such as a triangular convex tooth 231 shown in fig. 9, is disposed on the outer side of the second locking portion 23.
In other embodiments, the second locking groove 111 may be disposed on the frame 20, and the second locking portion 23 may be disposed on the middle plate 10.
In other embodiments, the surrounding edge 12 and the frame 20 may be fastened by screws. Similarly, the plate 11 and the frame 20 may be fastened together by screws, for example, the frame 20 may be provided with an extension portion extending into the plate 11, and the extension portion may be fastened together with the plate 11 by screws.
S30: the outer surface of the frame 20 is subjected to painting treatment and plating treatment.
Because the frame 20 is made of plastic, it is difficult to meet the surface requirement of the currently mainstream metallic luster, so after the injection molding of the frame 20, the outer surface of the frame 20 needs to be painted and electroplated, and after the painting, the outer surface of the frame 20 is electroplated, so that the frame 20 made of plastic can also have a surface layer with metallic luster required by the product.
In addition, the appearance effect of the outer surface of the frame 20 after the painting process and the electroplating process is improved. After S20 and before S30, the method may further include the steps of: the outer surface of the frame 20 is ground to improve the finish and flatness of the outer surface of the frame 20. Before the painting treatment and the electroplating treatment are carried out on the frame 20, the frame 20 is polished, so that the smoothness and the flatness of the outer surface of the frame 20 can be improved, and the appearance of the frame 20 after the painting treatment and the electroplating treatment is good.
S40: the blind hole 21 is processed into a through hole by CNC processing to obtain a preset side hole, and the milling cutter dodges the opening portion of the blind hole 21 in the CNC processing.
After the painting process and the electroplating process of the frame 20 are completed, the blind holes 21 at the positions of the preset side holes need to be punched through by CNC machining, so that the blind holes 21 become through holes. In S30, the outer surface of the frame 20 is painted and electroplated, so that in the process of opening the blind hole 21 by the CNC, the milling cutter needs to avoid the opening of the blind hole 21, thereby avoiding damage to the paint and the electroplated layer at the opening of the blind hole 21 (such as paint falling, plastic leakage, eversion and the like), and ensuring the good appearance of the opening of the side hole obtained by CNC processing.
In addition, for some special side holes on the frame 20, such as the side key holes shown in fig. 6, in S20, when the blind hole 21 is formed, a secondary blind hole 21 may be formed in the bottom area of the blind hole 21, and in S40, only the CNC machining and punching on the secondary blind hole 21 is needed.
The method for manufacturing the middle frame adopts a mode of combining the middle plate 10 made of metal and the side frame 20 made of plastic to manufacture the middle frame. At the outer peripheral edges of the middle plate 10 made of metal, the frame 20 made of plastic is obtained in an injection molding mode, so that the manufacturing difficulty of the frame 20 in the manufacturing process of the middle plate is reduced, and after the frame 20 is molded, the outer surface of the frame 20 is provided with metal luster through paint spraying treatment and electroplating treatment. Meanwhile, the side holes on the frame 20 are firstly formed into blind holes 21 during injection molding, and after the painting treatment and the electroplating treatment are finished on the outer surface of the frame 20, the blind holes 21 are punched into through holes through CNC machining to obtain the required side holes. In the process of drilling through the blind hole 21, the milling cutter avoids the opening part of the blind hole 21, paint and an electroplated layer at the opening part of the side hole are prevented from being damaged by the milling cutter, and the good appearance of the frame 20 is ensured. Through the design, at the peripheral frame 20 of injection moulding plastic system of the medium plate 10 of metal system, rethread processing of spraying paint and electroplating treatment give frame 20 with metallic luster to the side opening on the frame 20, adopt the mode of injection moulding blind hole 21 back CNC getting through earlier to solve, guarantee that frame 20's outward appearance is good, thereby reach the purpose that reduces the processing degree of difficulty and improve work efficiency.
Meanwhile, the invention also provides a middle frame.
The middle frame is manufactured by the manufacturing method of the middle frame in the embodiment. In this embodiment, the middle frame is a mobile phone middle frame, and in other embodiments, the middle frame may also be a tablet computer middle frame, or a palmtop computer middle frame, or a middle frame of another mobile terminal having a middle frame structure, or a middle frame of another electronic device having a middle frame structure besides the mobile terminal.
The advantage of this center lies in, when making this center, in the peripheral frame 20 of injection moulding plastic system of the medium plate 10 of metal system, the rethread processing of spraying paint and electroplating handle give frame 20 with metallic luster to the side opening on the frame 20, adopt the mode of injection moulding blind hole 21 back CNC getting through to solve, guarantee that frame 20's outward appearance is good, thereby reach the purpose that reduces the processing degree of difficulty and improve work efficiency.
Meanwhile, the invention also provides electronic equipment.
The electronic equipment comprises the middle frame of the embodiment. In this embodiment, the electronic device is a mobile phone, and in other embodiments, the electronic device may also be a tablet computer, a palmtop computer, or another mobile terminal with a middle frame structure, or another electronic device with a middle frame structure besides the mobile terminal.
This electronic equipment's advantage lies in, when the preparation center, at the frame 20 of the peripheral injection moulding plastic system of the medium plate 10 of metal system, the rethread is painted the paint and is handled and electroplate the processing and give frame 20 with metallic luster to the side opening on the frame 20, adopt the mode of injection moulding blind hole 21 back CNC getting through to solve, guarantee that frame 20's outward appearance is good, thereby reach the purpose that reduces the processing degree of difficulty and improve work efficiency.
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 the embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. 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 (8)
1. A method for manufacturing a middle frame is characterized by comprising the following steps: the method comprises the following steps:
providing a middle plate made of metal, wherein the middle plate comprises a plate body and a surrounding edge connected to the outer periphery of the plate body;
a plastic frame is formed on the outer periphery of the middle plate in an injection molding mode, the frame is formed on the surrounding edge and covers the outer surface of the surrounding edge, and a blind hole is formed in a position of a preset side hole in the frame; the blind hole is formed in an injection molding mode, is positioned on the outer surface of the frame, has an opening facing the outer side of the frame, and is a conical hole with a wide outer part and a narrow inner part;
performing paint spraying treatment and electroplating treatment on the outer surface of the frame;
processing the inner wall and the bottom area of the blind hole inwards from the outer side of the frame through CNC, processing the blind hole into a through hole to obtain a preset side hole, and avoiding the opening part of the blind hole by a milling cutter in the CNC processing process.
2. The manufacturing method of the middle frame according to claim 1, wherein in the step of providing the middle plate made of metal, the middle plate is die-cast, or the middle plate is CNC machined, or the middle plate is die-cast and then CNC machined.
3. The method for manufacturing the middle frame according to claim 1, wherein the surrounding edge is provided with a first clamping groove; the frame is provided with a first clamping portion for buckling the first clamping groove.
4. The manufacturing method of the middle frame according to claim 1, wherein the plate body is provided with a second clamping groove; the frame is provided with a second buckling part which extends to the plate body and is buckled with the second clamping groove.
5. The manufacturing method of the middle frame as claimed in claim 4, wherein a protrusion is provided on an outer side of the second buckling portion.
6. The method for manufacturing the middle frame according to claim 1, wherein after the step of injection molding a plastic frame around the outer periphery of the middle plate and forming blind holes at the positions of the preset side holes on the frame, and before the step of performing painting and electroplating processes on the outer surface of the frame, the method further comprises the steps of: and polishing the outer surface of the frame to improve the finish and the flatness of the outer surface of the frame.
7. An intermediate frame, characterized in that it is manufactured by the method of any one of claims 1 to 6.
8. An electronic device comprising the bezel of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910817528.0A CN110524790B (en) | 2019-08-30 | 2019-08-30 | Middle frame manufacturing method, middle frame and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910817528.0A CN110524790B (en) | 2019-08-30 | 2019-08-30 | Middle frame manufacturing method, middle frame and electronic equipment |
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| CN110524790A CN110524790A (en) | 2019-12-03 |
| CN110524790B true CN110524790B (en) | 2023-03-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111629090A (en) * | 2020-05-12 | 2020-09-04 | 广东长盈精密技术有限公司 | Middle frame and manufacturing method thereof |
| CN113747718B (en) * | 2021-09-09 | 2024-01-09 | 维沃移动通信有限公司 | Frame assembly and electronic equipment |
| CN117715332A (en) * | 2023-08-14 | 2024-03-15 | 荣耀终端有限公司 | Middle frame of electronic equipment and electronic equipment |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431119A (en) * | 2011-09-06 | 2012-05-02 | 东莞劲胜精密组件股份有限公司 | Forming decoration technology |
| CN103587033A (en) * | 2012-08-16 | 2014-02-19 | 汉达精密电子(昆山)有限公司 | Processing method of exterior decoration effects, and product processed by processing method |
| CN103600457A (en) * | 2013-10-25 | 2014-02-26 | 安徽工贸职业技术学院 | Stereoscopic plastic piece surface treatment technology |
| CN103817853A (en) * | 2012-11-17 | 2014-05-28 | 安徽蓝德集团股份有限公司 | Injection part surface treatment process |
| CN106976202A (en) * | 2017-05-23 | 2017-07-25 | 吴旭上 | A kind of combined process of metal lock panel and plastics |
| KR20170110307A (en) * | 2016-03-23 | 2017-10-11 | (주)신영프레시젼 | Manufacturing Method of Metal Frame for Portable terminal using the same and Metal Frame for Portable terminal thereof |
| CN107662313A (en) * | 2017-10-23 | 2018-02-06 | 惠州威博精密科技有限公司 | A kind of manufacture method of composite mobile phone center |
| WO2018072285A1 (en) * | 2016-10-18 | 2018-04-26 | 华为技术有限公司 | Middle frame for use in mobile terminal and mobile terminal |
| CN108688055A (en) * | 2018-07-27 | 2018-10-23 | Oppo（重庆）智能科技有限公司 | Prepare method, center and the electronic equipment of center |
| CN108819094A (en) * | 2018-07-18 | 2018-11-16 | 太仓市众翔精密五金有限公司 | A kind of the quick injection molding technique and mold of complex precise notebook computer casing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493443B (en) * | 2014-12-08 | 2017-09-15 | 广东欧珀移动通信有限公司 | A kind of processing mode of the high plain edge through hole of handset shell |
-
2019
- 2019-08-30 CN CN201910817528.0A patent/CN110524790B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431119A (en) * | 2011-09-06 | 2012-05-02 | 东莞劲胜精密组件股份有限公司 | Forming decoration technology |
| CN103587033A (en) * | 2012-08-16 | 2014-02-19 | 汉达精密电子(昆山)有限公司 | Processing method of exterior decoration effects, and product processed by processing method |
| CN103817853A (en) * | 2012-11-17 | 2014-05-28 | 安徽蓝德集团股份有限公司 | Injection part surface treatment process |
| CN103600457A (en) * | 2013-10-25 | 2014-02-26 | 安徽工贸职业技术学院 | Stereoscopic plastic piece surface treatment technology |
| KR20170110307A (en) * | 2016-03-23 | 2017-10-11 | (주)신영프레시젼 | Manufacturing Method of Metal Frame for Portable terminal using the same and Metal Frame for Portable terminal thereof |
| WO2018072285A1 (en) * | 2016-10-18 | 2018-04-26 | 华为技术有限公司 | Middle frame for use in mobile terminal and mobile terminal |
| CN106976202A (en) * | 2017-05-23 | 2017-07-25 | 吴旭上 | A kind of combined process of metal lock panel and plastics |
| CN107662313A (en) * | 2017-10-23 | 2018-02-06 | 惠州威博精密科技有限公司 | A kind of manufacture method of composite mobile phone center |
| CN108819094A (en) * | 2018-07-18 | 2018-11-16 | 太仓市众翔精密五金有限公司 | A kind of the quick injection molding technique and mold of complex precise notebook computer casing |
| CN108688055A (en) * | 2018-07-27 | 2018-10-23 | Oppo（重庆）智能科技有限公司 | Prepare method, center and the electronic equipment of center |
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