CN116493879A - Frame and middle frame preparation method - Google Patents
Frame and middle frame preparation method Download PDFInfo
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- CN116493879A CN116493879A CN202310560100.9A CN202310560100A CN116493879A CN 116493879 A CN116493879 A CN 116493879A CN 202310560100 A CN202310560100 A CN 202310560100A CN 116493879 A CN116493879 A CN 116493879A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 claims abstract description 41
- 239000007769 metal material Substances 0.000 claims abstract description 40
- 238000012545 processing Methods 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 238000011282 treatment Methods 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 238000010137 moulding (plastic) Methods 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims description 19
- 238000004381 surface treatment Methods 0.000 claims description 16
- 238000001746 injection moulding Methods 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000004512 die casting Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Door And Window Frames Mounted To Openings (AREA)
- Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
Abstract
The embodiment of the invention provides a preparation method of a frame and a middle frame, which comprises the following steps: taking: taking a metal raw material; softening: softening the metal raw material by using heating equipment; obtaining a frame blank: preliminarily molding the softened metal material by using an extrusion molding plastic molding method, so that the metal material is molded into a preset shape, and a fastening structure for connecting with an adapter is formed, thereby obtaining a frame blank; obtaining a frame: dividing the frame blank after secondary treatment to obtain a frame, or dividing the frame blank after secondary treatment to obtain a frame. The frame preparation method utilizes plastic forming equipment to perform plastic forming on the frame blank at one time, has simple processing steps and high processing efficiency, and is suitable for mass rapid production.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a frame and a middle frame preparation method.
Background
Along with the continuous development of mobile terminal technology, the application of electronic devices such as smart phones, palm computers, smart watches and the like is very popular, and becomes an important component in the work and life of people, a shell of the electronic device (such as a mobile phone) is generally composed of a panel, a middle frame and a bottom plate, the panel and the bottom plate are both installed on the middle frame, and the bottom plate is arranged on one side of the middle frame opposite to the panel, so that the panel, the middle frame and the bottom plate together form a substantially closed structure.
The center frame typically includes a frame and an adapter (e.g., a midplane for mounting circuit boards and related electronic components) attached to the frame. Among the rims made of various materials, a metal rim structure is widely used because it has advantages of wear resistance, easy heat dissipation, and ability of giving a high-end impression to a user.
The middle frame under the initial design often is formed by plastic once only, or sets up the frame into plastic, embedded metal material overmoulding forms, because the middle frame needs to bear outside bending force, and the bending force that plastic material can bear is less, receives external force effect easily and is bent, makes the panel impaired to influence the use.
In order to overcome the above problems, the preparation method of the middle frame in the prior art is developed by adopting a CNC processing method to prepare a metal frame, then combining the metal frame with a middle plate prefabricated by a stamping method or a die casting method through an in-mold injection molding method, or the whole middle frame is made by adopting a CNC processing method through a metal blank, or combining the metal frame with the metal middle plate through riveting/welding/screw fastening and other manners, and then assisting in-mold injection molding to finally form the metal middle frame. The processing method has complex steps and is difficult to improve the production efficiency.
Disclosure of Invention
The embodiment of the invention provides a preparation method of a frame and a middle frame, which is used for solving the problems that in the prior art, the preparation steps of the frame and the middle frame are complex, and the production efficiency is difficult to improve.
According to a first aspect, an embodiment of the present invention provides a method for preparing a frame, including the following steps:
taking: taking a metal raw material;
softening: softening the metal raw material by using heating equipment;
obtaining a frame blank: preliminarily molding the softened metal material by using an extrusion molding plastic molding method, so that the metal material is molded into a preset shape, and a fastening structure for connecting with an adapter is formed, thereby obtaining a frame blank;
obtaining a frame: dividing the frame blank after secondary treatment to obtain a frame, or dividing the frame blank after secondary treatment to obtain a frame.
As a further alternative of the method for preparing a bezel, the obtaining a bezel blank includes the steps of:
extruding the softened metal material into a sheet-shaped frame blank with the fastening structure by using an extrusion plastic molding method;
the obtaining of the frame comprises the following steps:
bending the sheet-shaped frame blank to form a frame structure, and dividing the frame structure after secondary treatment to obtain the frame; or (b)
And cutting the sheet-shaped frame blank, bending to form a frame structure monomer, and carrying out secondary treatment on the frame structure monomer to obtain the frame.
As a further alternative to the method for preparing a frame, the secondary processing of the frame blank includes:
processing the frame blank to enable at least one of the size or the surface smoothness of the frame blank to meet the requirements; and/or
And processing a functional structure of the mounting structure on the frame blank, wherein the functional structure of the mounting structure can be used for the subsequent production process of the electronic equipment.
As a further alternative of the frame preparation method, the frame preparation method further includes the steps of:
surface treatment: and carrying out surface treatment on the frame so as to ensure that the surface performance of the frame meets the requirements.
As a further alternative to the method for manufacturing the rim, the fastening structure is provided as a dovetail groove.
According to a second aspect, an embodiment of the present invention further provides a method for preparing a middle frame, including the steps of:
preparing a frame: manufacturing a frame by using the frame manufacturing method according to any one of the foregoing embodiments;
preparation of a middle frame: the adapter is connected to the rim by the fastening structure to form a middle frame.
As a further alternative to the method of manufacturing the middle frame, attaching the adapter to the rim by the fastening structure comprises:
the adapter is connected to the frame in a die-cast manner such that the frame and the adapter form a connection at least at the fastening structure.
As a further alternative to the method of manufacturing the middle frame, attaching the adapter to the rim by the fastening structure comprises:
the adapter is welded to the frame such that the frame and the adapter form a connection at least at the fastening structure.
As a further alternative to the method of manufacturing the middle frame, attaching the adapter to the rim by the fastening structure comprises:
the adapter is connected to the frame in an in-mold injection-molding manner such that the frame and the adapter form a connection at least at the fastening structure.
As a further alternative of the method for preparing a middle frame, the method for preparing a middle frame further comprises the steps of:
after the adapter is connected to the frame through the fastening structure to form a middle frame, CNC is utilized to process the middle frame and/or surface process the middle frame.
The implementation of the embodiment of the invention has the following beneficial effects:
according to the preparation method of the frame, after the metal material is heated and softened, the whole shape of the frame is subjected to one-step plastic forming by utilizing plastic forming equipment, a fastening structure is formed in the plastic forming process, the processing steps are simpler, the processing efficiency is high, and the preparation method is suitable for mass rapid production.
The preparation method of the middle frame utilizes the preparation method of the frame, so that the preparation method of the middle frame also has the advantages of simple steps, high processing efficiency and suitability for mass rapid production.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Wherein:
FIG. 1 is a flowchart of a method for preparing a frame according to an embodiment of the invention;
FIG. 2 is a flowchart of a method for preparing a frame according to another embodiment of the present invention;
FIG. 3 is a flowchart of a method for preparing a middle frame according to an embodiment of the present invention;
FIG. 4 is a flowchart of a method for manufacturing a middle frame according to another embodiment of the present invention;
FIG. 5 is a flowchart of a method for manufacturing a middle frame according to another embodiment of the present invention
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many other 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 "fixed 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. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
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 herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The embodiment of the invention provides a preparation method of a frame and a middle frame, which is used for solving the problems that in the prior art, the preparation steps of the frame and the middle frame are complex, and the production efficiency is difficult to improve.
In an embodiment of the present invention, please refer to fig. 1 to 2 in combination, the method for manufacturing the frame includes:
taking: taking a metal raw material. The metal material taken in this step may be selected to be at least one of a metal bar or a metal pipe or a metal ingot, which is easily available and suitable for mass processing because it is of a substrate structure.
Softening: the metal raw material is softened by a heating device. In this step, the metal material is heated to soften, not the metal material is heated completely until it is melted, but the metal bar or metal pipe or metal ingot is heated according to the need to an easy-to-shape state that facilitates bending or extrusion at the time of subsequent processing.
Obtaining a frame blank: and preliminarily molding the softened metal material by using a plastic molding method, so that the metal material is molded into a preset shape, and a fastening structure for connecting with the adapter is formed, thereby obtaining a frame blank.
In the step of obtaining the frame blank, the plastic forming method refers to a process of changing the morphology of the metal material by applying a tensile force and/or a compressive force without cutting the softened metal material, and includes, but is not limited to, extrusion, stamping, forging, rolling, drawing, etc., and extrusion may be preferable in practice.
The extrusion molding has the advantages of improving the comprehensive quality of products, producing products with various cross-sectional shapes, along with high production flexibility, simple process flow and less equipment investment.
While based on the extrusion process, alternative classes of metallic materials include, but are not limited to: aluminum and its alloys, copper and its alloys, zinc and its alloys, nickel-copper alloys, tool steels, alloy tool steels, high speed steels, titanium alloys, stainless steels, and the like.
In a specific application, in a more general case, the preset shape of the molded metal material is a frame body with a rectangular cross section, so as to be suitable for equipment with rectangular appearance, such as a square dial plate of a mobile phone or an electronic watch, however, along with the change of a use scene and requirements, the metal material can also be processed into frame bodies with other cross sections, such as a round shape, an oval shape, a triangle shape, a polygon shape, a water drop shape and the like; the frame body can be of a closed structure (for example, a metal pipe or a metal ingot is directly extruded), or of an unsealed structure (for example, a strip-shaped metal material is extruded into a sheet shape and then cut and/or bent, so that the frame body is provided with a broken notch, the notch can be kept open under the condition of meeting the subsequent use requirement, and of course, the notch can also be used for connecting the end parts of the frame body at two sides of the notch in a welding or bonding or clamping mode, so as to seal the notch, an intermediate element can be additionally arranged at the notch so as to connect the two end parts of the metal material, so as to seal the notch, and the scheme can be provided with a fastening structure formed at the end parts of the frame body so as to be connected with the intermediate element.
Obtaining a frame: and (5) carrying out secondary treatment on the frame blank to obtain the frame.
In practical implementation, the frame preparation method provided by the embodiment of the invention can make adaptive changes based on different thicknesses of the obtained metal raw materials, and can contain two conditions.
It is a common situation that the thickness of a certain metal material obtained is larger than the thickness of the frame, so that the metal material has the ability to divide a plurality of frames from it, in other words, by dividing the metal material or dividing the frame blank, a plurality of frames can be obtained.
More specifically, the dividing sequence includes three steps, namely, after obtaining the metal material, cutting the metal material to obtain a plurality of divided pieces, so that the thickness of the divided pieces is equal to or approximately equal to (the thickness of the frame to be obtained can be continuously shaped in the subsequent process), and then performing the processes of obtaining the frame blank and obtaining the frame; secondly, after obtaining the frame blank, dividing the frame blank to obtain a plurality of divided bodies, so that the thickness of the divided bodies is equal to or approximately equal to the thickness of the frame, and then performing secondary processing (when the thickness of the divided bodies is approximately equal to the thickness of the frame, the secondary processing at least comprises processing the thickness of the divided pieces) on the divided bodies to obtain the frame; thirdly, after obtaining the frame blank, carrying out secondary treatment on the frame blank, and then dividing the frame blank subjected to secondary treatment to directly obtain the frame.
It should be noted that in the description of the previous paragraph, the second and third dividing modes are performed after plastic forming, so that the effect of plastic forming can be reflected on a plurality of dividing bodies at one time, thereby greatly improving the production efficiency and being very suitable for mass production.
In another case, the thickness dimension of the obtained metal material is equal to or approximately equal to the thickness dimension of the frame, and at this time, the steps of softening, obtaining the frame blank, and obtaining the frame (when the thickness of the divided body is approximately equal to the thickness of the frame, the secondary processing includes at least the processing of the thickness of the divided piece) are directly performed again to obtain the frame.
It should be noted that, although the foregoing description shows a relative ambiguity of "approximately equal", the present invention does not require a specific limitation on the difference range between the thickness of the frame and the cut piece, and the difference range may be determined by a skilled person according to the machining capability, experience, precision requirement, etc. of the machine tool, in other words, the relative ambiguity is approximately equal, which does not cause the skilled person to fail to apply the method provided by the present invention. In addition, since the embodiment of the invention preferably adopts extrusion molding to perform plastic processing on the metal material, in the plastic processing process, besides applying pressure on one end of the metal material, a tensile force is often required to be applied from the other end, and if the thickness of the metal material is too small, the tensile force is often difficult to apply, so that in view of convenience of processing and high efficiency of production, a metal material with a thickness larger than that of the frame is preferred in practice.
It should be added that the frame manufactured by the frame manufacturing method does not narrowly point to a complete frame (refers to a complete enclosing structure), but also points to a part of a complete frame, such as an edge of the complete frame, or an edge of the complete frame together with a round corner on one side or two sides of the complete frame, or a combination of two to three edges of the frame, etc., and the situation can be regarded as the extension of the concept of the frame with the notch, and during the production process, the structure can be joined to form a complete frame in a subsequent process. For example, the frame produced by the method is actually four independent sides of a complete frame body, and the four sides are respectively fixed on an adapting piece (such as a middle plate), so that the complete frame body is formed; for example, the frame produced by the method is actually four independent sides of a complete frame, fastening structures capable of being matched with each other are formed on the four sides, a complete frame structure is formed through connection between the fastening structures, and technologies such as die casting, injection molding, welding and the like can be combined during connection, so that a more stable connection relationship is formed.
According to the preparation method of the frame, after the metal material is heated and softened, the whole shape of the frame is subjected to one-step plastic forming by utilizing plastic forming equipment, a fastening structure is formed in the plastic forming process, the processing steps are simpler, the processing efficiency is high, and the preparation method is suitable for mass rapid production.
In one embodiment, obtaining the rim blank comprises the steps of:
extruding the softened metal material into a sheet-shaped frame blank with a fastening structure by using a plastic forming method;
the obtaining of the frame comprises the following steps:
bending the sheet-shaped frame blank to form a frame structure, and performing secondary treatment on the frame structure to obtain the frame.
The above steps are generally applicable to the case where the metal material is taken in a long form, and in this case, it is difficult to obtain a frame structure that meets the size and shape requirements by direct plastic molding, and therefore it is necessary to process the metal material into a sheet shape and then bend the metal material into the frame structure. It should be noted that the folded frame structure cannot be directly closed, and the above mentioned methods, such as adhesion, clamping, welding, and setting the intermediate, may be used to close the notch, or the presence of the notch may be maintained. In some applications, the non-elongated metal material may be cut into elongated shapes and then processed using this step.
In another embodiment, the frame blank obtained by plastic forming is a frame structure. Such an embodiment is often applicable to the case where the obtained metal material is tubular or ingot-shaped.
In one embodiment, the secondary treatment of the frame blank comprises:
processing the frame blank to enable at least one of the size or the surface smoothness of the frame blank to meet the requirements; and/or processing a functional structure on the frame blank, wherein the functional structure can be used in the subsequent production process of the electronic equipment. Wherein, the size of the frame generally refers to one or more of the length, width, thickness, angle, radian and the like; the processing of the surface smoothness of the frame means removing burrs and burrs or grinding the surface; functional structures include, but are not limited to: antenna slot, USB hole, earphone hole, SIM card hole, side key hole lamp etc. can be used to the structure in the follow-up production process.
The secondary treatment process can be generally performed by adopting CNC, and the CNC has the advantages that the processed parts can be automatically processed according to a processing program which is compiled in advance, and the production process is stable and efficient and is suitable for mass production. Of course, the above process can also be performed by using a conventional machine tool.
In one embodiment, the fastening structure is provided as a dovetail groove. The dovetail grooves can be one or more channels, and can be arranged on the metal material in different extending directions. It is conceivable that the dovetail groove could also be replaced by a groove having another shape, preferably the size of the opening of the groove should be smaller than the size at the largest cross section of the groove cavity, so that the groove structure (including the dovetail groove) can limit the adapter when the adapter is subsequently connected in a die-casting manner, thereby enhancing the stability of the connection.
In another embodiment, the fastening structure may be provided as a dovetail, in which case dovetail grooves may be correspondingly provided on the adapter to form a connection with the dovetail.
In still another embodiment, the fastening structure may be configured as a structure for plugging, and the adapter should be correspondingly provided with a connection structure that mates with the fastening structure, for example, the fastening structure is configured as a connection post, the connection post is formed on an inner wall of the frame and extends along a thickness direction of the frame, the connection structure on the adapter is configured as a connection slot, and the connection post may be inserted into the connection slot to form a connection between the adapter and the frame, and on the basis of this connection, further welding or bonding may be performed to improve stability of the connection.
It is conceivable that the above arrangements of several fastening structures can also be combined at will, so that more arrangements are obtained.
In one embodiment, the method for preparing a frame further comprises the steps of:
surface treatment: and carrying out surface treatment on the frame so as to ensure that the surface performance of the frame meets the requirements. The surface treatment method includes at least one of electroplating, chemical plating, thermal diffusion, anodic oxidation, thermal spraying, low-pressure ion technology, surface alloying, magnetron sputtering coating, ion coating, PVD, ion oxidation and nanometer treatment.
In the embodiment of the invention, the preparation method of the middle frame comprises the following steps:
manufacturing a frame by using the frame manufacturing method according to any one of the previous embodiments; the adapter is connected to the rim by a fastening structure to form a middle frame.
The preparation method of the middle frame utilizes the preparation method of the frame, so that the preparation method of the middle frame also has the advantages of simple steps, high processing efficiency and suitability for mass rapid production.
In one embodiment, referring to fig. 3, attaching the adapter to the bezel by a fastening structure comprises:
the adapter is connected to the frame in a die-cast manner such that the frame and the adapter form a connection at least at the fastening structure.
In another embodiment, referring to fig. 4, attaching the adapter to the bezel by a fastening structure comprises:
the adapter is welded to the frame such that the frame and the adapter form a connection at least at the fastening structure.
In yet another embodiment, referring to fig. 5, attaching the adapter to the bezel via the fastening structure includes attaching the adapter to the bezel in an in-mold manner such that the bezel and the adapter form a connection at least at the fastening structure.
In a specific embodiment, an injection molding groove is formed in the inner wall of the frame, the injection molding groove forms a fastening mechanism, the adapter comprises a main body and a clamping block protruding from the outer edge of the main body, and the clamping block is arranged in the injection molding groove through injection molding to fixedly connect the main body and the frame.
In some other embodiments, connecting the adapter to the bezel via the fastening structure includes connecting the adapter to the bezel in a riveted and/or threaded connection such that the bezel and the adapter form a connection at least at the fastening structure.
The middle frame manufactured by adopting the scheme has the advantages that the clamping blocks are positioned in the injection molding grooves to fill the injection molding grooves, and the middle plate and the metal frame can bear larger shearing force and drawing force through the relation between the clamping blocks and the injection molding grooves, so that the assembly stability is good. Compared with the traditional technology of assembling after CNC processing and die casting molding, the processing technology is simpler, the production and the processing are convenient, the generated waste is less, and the material utilization rate is high.
In one embodiment, the method for preparing a middle frame further comprises the steps of:
after the adapter is connected to the frame by the fastening structure to form the center, the center is machined and/or surface treated with CNC. The process of performing the treatment by using CNC may refer to the foregoing embodiment, and the surface treatment manner is the same as that of the foregoing embodiment, and will not be described herein.
In the foregoing, reference is made to surface treatments of the frame and the middle frame, and in terms of the process flow, the surface treatments can be roughly divided into functional surface treatments and appearance surface treatments, and in general, the functional surface treatments should be placed before the appearance surface treatments in terms of the process flow. For example: when the frame and the adapting piece (such as the middle plate) are connected in an in-mold injection molding mode, T treatment is needed to be carried out on the middle plate and the frame to form a roughened layer, so that the strength of subsequent connection is enhanced, the T treatment in one step is a mode of functional surface treatment, and after the middle plate and the frame are connected, surface treatment such as anodic oxidation and PVD (physical vapor deposition) can be further carried out, so that the aesthetic degree of a product meets the requirement.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The preparation method of the frame is characterized by comprising the following steps of:
taking: taking a metal raw material;
softening: softening the metal raw material by using heating equipment;
obtaining a frame blank: preliminarily molding the softened metal material by using a plastic molding method, so that the metal material is molded into a preset shape, and a fastening structure for connecting with an adapter is formed, thereby obtaining a frame blank;
obtaining a frame: and carrying out secondary treatment on the frame blank to obtain the frame.
2. The method of manufacturing a bezel of claim 1, wherein the obtaining a bezel blank comprises the steps of:
extruding the softened metal material into a sheet shape by using a plastic forming method and forming the frame blank with the fastening structure;
the obtaining of the frame comprises the following steps:
and bending the sheet-shaped frame blank to form a frame structure, and performing secondary treatment on the frame structure to obtain the frame.
3. The method of claim 1 or 2, wherein the secondary treatment of the frame blank comprises:
processing the frame blank to enable at least one of the size or the surface smoothness of the frame blank to meet the requirements; and/or
And processing a functional structure on the frame blank, wherein the functional structure can be used in the subsequent production process of electronic equipment.
4. The method of manufacturing a bezel of claim 1, further comprising the steps of:
surface treatment: and carrying out surface treatment on the frame so as to ensure that the surface performance of the frame meets the requirements.
5. The method of manufacturing a bezel of claim 1, wherein the fastening structure is provided as a dovetail groove.
6. The preparation method of the middle frame is characterized by comprising the following steps of:
preparing a frame: manufacturing a bezel using the bezel manufacturing method as defined in any one of claims 1 to 5;
preparation of a middle frame: the adapter is connected to the rim by the fastening structure to form a middle frame.
7. The method of manufacturing a middle frame according to claim 6, wherein the attaching the adapter to the rim by the fastening structure comprises:
the adapter is connected to the frame in a die-cast manner such that the frame and the adapter form a connection at least at the fastening structure.
8. The method of manufacturing a middle frame according to claim 6, wherein the attaching the adapter to the rim by the fastening structure comprises:
the adapter is welded to the frame such that the frame and the adapter form a connection at least at the fastening structure.
9. The method of manufacturing a middle frame according to claim 6, wherein the attaching the adapter to the rim by the fastening structure comprises:
the adapter is connected to the frame in an in-mold injection-molding manner such that the frame and the adapter form a connection at least at the fastening structure.
10. The method of manufacturing a middle frame according to claim 6, further comprising the steps of:
after the adapter is connected to the frame through the fastening structure to form a middle frame, CNC is utilized to process the middle frame and/or surface process the middle frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310560100.9A CN116493879A (en) | 2023-05-17 | 2023-05-17 | Frame and middle frame preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310560100.9A CN116493879A (en) | 2023-05-17 | 2023-05-17 | Frame and middle frame preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116493879A true CN116493879A (en) | 2023-07-28 |
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ID=87318257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310560100.9A Pending CN116493879A (en) | 2023-05-17 | 2023-05-17 | Frame and middle frame preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116493879A (en) |
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2023
- 2023-05-17 CN CN202310560100.9A patent/CN116493879A/en active Pending
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