KR101390973B1 - A method of manufacturing metal-deco-frame for portable electronic device - Google Patents

Abstract

The present invention relates to a method of manufacturing a metal deco-frame for a portable electronic device, and more particularly, to a technology for easily manufacturing a metal deco-frame used in a case and a frame of a portable electronic device. The method of manufacturing the metal deco-frame for a portable electronic device of the present invention includes a preparation process of a raw material (S10), a cross-section processing process (S20), a frame bending process (S60), and a joint bonding process (S70); and selectively includes at least one of a perforation process (S30), a NC processing process (S40), and a nut bonding process (S50) prior to the frame bending process (S60).

Description

[0001] METHOD OF MANUFACTURING METAL-DECO-FRAME FOR PORTABLE ELECTRONIC DEVICE [0002] BACKGROUND OF THE INVENTION [0003]

TECHNICAL FIELD The present invention relates to a method of manufacturing a metal decoy frame used in a portable electronic apparatus, and more particularly, to a technique for easily manufacturing a metal decoy frame used in a case and a frame of a portable electronic apparatus.

Generally, there are various types of portable electronic devices such as a mobile phone, a notebook, and a tablet PC.

Plastics and metals, which are synthetic resins, are applied to the case or frame of the portable electronic device.

Such a synthetic resin may be completed through an operation such as injection or pressing. In the case of metal, however, there is a problem in that it is difficult to manufacture by a simple press or die casting method.

This has been inconvenient for a post-operation, such as punching or grasping a joint nut or various terminals to be coupled through a post-operation.

Such a technique is disclosed in Korean Patent Laid-Open No. 10-2006-0100361 (portable terminal having a grounding dummy pad, hereinafter referred to as "Prior Art 1"), Korean Patent Laid-Open No. 10-2006-0085114 (Hereinafter referred to as " Prior Art 2 "), Korean Patent Laid-Open No. 10-2009-0118765 (hereinafter referred to as " Prior Art 3 "

However, these prior arts only describe frames or covers made of a metal material, but do not disclose a specific technique for manufacturing the frame or the cover.

Further, in the conventional art, it is known that anyone who has ordinary knowledge can manufacture such a frame or a cover by using a casting or a press, and most of such known techniques are applied.

These known techniques have been disadvantageous in that post-processing work takes a long time and the cost also becomes excessive.

In order to solve the above problems, a method of manufacturing a metal décor frame used in a portable electronic device according to the present invention is to provide a metal telecom frame that can be easily manufactured, thereby improving productivity.

In order to accomplish the object of the present invention, a method of manufacturing a metal dome frame used in a portable electronic device includes a raw material preparing step (S10) for preparing a metal bar type material, a metal bar type preparing step (S20); a frame bending step (S60) of folding the metal bar type material processed in the step (S20) into a frame shape in accordance with the use of the electronic device to be used; and a step And a joint joining step (S70) for joining both side ends of the frame of the metal bar type material processed in step S60.

Between the end-face machining step (S20) and the frame bending step (S60), a shape punching step (S30) for punching a part of the metal bar type material processed in the step (S20) The NC machining process (S40) for performing a grooving operation to partially join the nut to be worked in the surface treatment of the machined metal bar type material and the machining of the metal bar type material processed in the above step (S40) And a nut coupling step (S50) for coupling the nut to the etching site.

In the step of preparing the raw material (S10), a metal bar type material is prepared by cutting a metal plate having a height equal to the width of the completed metal deco frame, or a metal having the same thickness as the finished metal deco frame A method of preparing a metal bar type material by cutting or cutting a plate material or a method of preparing a metal bar type material by cutting a metal bar having the same thickness and width as a finished metal deco frame is applied, Quot; L "shape in order to improve the ease of strength reinforcement and assembly in step S20.

In addition, in the joint joining step (S70), both end portions of the frame before joining the joints are processed into a shape such as concavo-convex and concave groove, a plurality of teeth, a plurality of projections, wedge, Thereby facilitating the bonding force and welding work.

(S80) after completion of the joining step (S70) as described above, and the post-processing operation step (S80) is a step of performing a grinding flat operation after the welding operation of the joint portion, minimizing the naked eye identification The present invention can be achieved by providing a method of manufacturing a metal decoy frame for use in a portable electronic device, which is characterized in that at least one of an anodizing operation, a hair line post-processing, and a post-buffing operation is performed.

By providing the method of manufacturing a metal decoy frame used in the portable electronic device of the present invention, the manufacturing method is easy and productivity is improved.

1 is a flow chart showing the process of the present invention.
Fig. 2 is a perspective view of the resultant processed in the raw material preparation step (S10) of the present invention.
Fig. 3 is a perspective view and a cross-sectional view of the resultant processed in the end-face machining step (S20) of the present invention.
FIG. 4 is a perspective view and a partial enlarged view of a result obtained in the shape punching process (S30) of the present invention.
Fig. 5 is a perspective view and a partial enlarged view of the result of the NC machining process (S40) of the present invention.
FIG. 6 is a perspective view and a partially enlarged view of the resultant product processed in the nut coupling step (S50) of the present invention.
Figs. 7 to 9 are perspective views of the resultant product in the frame bending step (S60) and the joint joining step (S70) of the present invention.
10 is an exemplary view showing various joining methods of the joining portion bonding step (S70) of the present invention.
11 is a perspective view of the resultant according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method of manufacturing a metal decor frame used in a portable electronic device of the present invention will be described in detail with reference to the drawings so that those skilled in the art can easily carry out the invention.

1 is a flow chart showing the process of the present invention.

1, a method of manufacturing a metal décor frame used in a portable electronic device according to the present invention includes a raw material preparing step S10, an end face machining step S20, a frame bending step S60, (S70), and may further include at least one of a shape punching step (S30), an NC machining step (S40), and a nut coupling step (S50) before the frame bending step (S60).

The raw material preparation step S10 is a step of preparing a metal bar type material (see FIG. 2) from a raw material, preparing a metal bar type material by tapping a conventional metal plate, Or by cutting the metal bar to an appropriate length.

Here, the method of forming the metal plate is to prepare a metal bar type material by pressing a metal plate having the same height as the width of the completed metal deco frame by laser cutting or the like.

In addition, a method of cutting and preparing the raw material in the form of a metal plate to an appropriate length is a method of preparing a metal bar type material by a method such as mechanical cutting or laser cutting using a metal plate having the same thickness as the finished metal deco frame will be.

In addition, a method of cutting the metal bar to an appropriate length is to prepare a metal bar type material by cutting a metal bar having the same thickness and width as the finished metal telecom frame to an appropriate length.

One of these methods is used to prepare the raw materials.

The metal bar type material prepared in the above-described raw material preparation step S10 is subjected to an end-face machining step S20 (see FIG. 3).

At this time, one or a plurality of the metal bars may be prepared and subjected to an end-face machining step (S20). One metal bar or a plurality of metal bars may be combined to complete the metal decoy frame. 10)

This can be selectively applied in accordance with the electronic device in which the finished metal decoy frame is used. For example, a small electronic device such as a cellular phone is adapted to use a single metal bar, and a palm top or A method of utilizing a plurality of metal bars is applied to a medium- or large-sized electronic apparatus such as a notebook computer.

The end face machining step (S20) is completed by cutting a part of a cross section of the metal bar type material and then performing a cutting operation.

More specifically, after a side portion of the metal bar is bent in an "L" shape, the bent corner portion is cut to perform chamfering, and both side edges of the bent end are cut.

The reason for bending a portion of the side surface as described above in an "L" shape is to strengthen the strength in order to prevent warping and the like in manufacturing the frame, .

Here, various shapes can be applied when cutting the edge and the end as described above, and the matters described in the drawings and the detailed description of the present invention are explained on the basis of one embodiment, but the present invention is not limited thereto.

After the end face machining step S20 is completed, the frame bending step S60 and the joint part joining step S70 are performed to complete the metal decoupled frame, but another process may be additionally performed.

Here, an example in which another process is added will be described.

Therefore, it will be described as an example that the shape punching step (S30), the NC machining step (S40), and the nut coupling step (S50) are sequentially performed after the end face machining step (S20).

The punching process (S30) for punching a part of the metal bar type material having the end face machined in the end face machining step (S20) is for forming a place where various subsidiary materials provided in the portable electronic device are located. Reference)

For example, when applied to a side frame of a mobile phone, a part of a place where a charge jack, a volume key, an earphone jack, and an ON / OFF power button are located is provided so that the subsidiary material can be positioned.

The metal bar type material having been partially burnt in the shape punching step S30 is subjected to an etching work through the NC machining step S40 (see FIG. 5).

More specifically, it is an operation for forming a joining portion for joining the nut or the like to be worked on in the surface treatment of the bored portion in the previous step (S30) and the post-processing.

For example, in the case of a cellular phone, when a circuit board provided on the inner side, an upper side and a lower side cover, or the like is coupled or a subsidiary material is coupled, when a bolt connection is required, the corresponding nut is positioned.

To accomplish this, a portion of the surface is subjected to a grooving operation, and then the nut is coupled by a joining method such as welding in a post-process (S40).

A grooving operation is performed on a part of the metal bar type material in the NC machining step (S40), and then a nut coupling step (S50) for joining members such as a coupling nut is performed (refer to FIG. 6).

At this time, the nut coupling process (S50) is performed by placing the coupling nut on the grooved portion of the metal bar and then welding the same.

The metal bar type material that has undergone the nut coupling process (S50) is subjected to a frame bending process (S60) in which the material is bent in a frame shape suitable for the use of the electronic equipment to be used.

At this time, the L-shaped projections formed on one side of the metal bar are bent toward the inside.

Here, the protrusion is bent toward the inside as described above, but the present invention is not limited thereto.

After the frame bending step (S60), a joint joining step (S70) for joining both side ends of the frame to complete the frame is performed (see Figs. 7 to 10).

In the joint joining step (S70) as described above, conventional methods such as electric welding, machine welding, and gas welding are used.

At this time, in the joint joining step (S70), both end portions of the pre-joining frame are formed into various shapes and then welding work is performed.

For example, both side ends holding the flat surface are joined, or the side ends are machined and engaged with various shapes such as concavities and convexities, a plurality of teeth, a plurality of projections, wedges, etc., .

The welding process may be performed after the two side end portions separated by the above-described process are bonded together so as to facilitate welding or may be formed into various shapes so as to increase the bonding force.

The frame that has been completed through the above-described processes may further include a post-processing operation step (S80).

Various methods are used for the surface treatment by the post-treatment.

For example, there may be processes such as grinding flattening after welding, anodizing to minimize visual identification of joints, hair line post-processing, and post-buffing process.

Hereinafter, various embodiments according to the present invention will be described in further detail.

When the metal deco frame according to the present invention is completed using one metal bar, a metal bar type material is prepared through a raw material preparation step (S10), and a cross section of the metal bar type material prepared in the raw material preparation step (S10) (S20) of bending and cutting.

At this time, in the end-face machining step (S20), one metal bar type material is machined and a shape punching process (S30) is performed in which a part of the machined metal bar type material is punctured, .

The metal bar type material having undergone the punching step S30 is subjected to an NC machining step S40 for etching a part to join the nut to be worked in the surface treatment and a post-machining step, And a nut coupling process (S50) for joining the nut to the etched portion.

A frame bending step (S60) of bending a frame-like shape according to the use of the electronic device by using a metal bar type material after the nut bonding step (S50) as described above, and the metal bar type (See Fig. 7). [0054] The welding process is performed by welding both end portions of the material to form concavities and convexities, a plurality of teeth, a plurality of projections or wedge shapes,

When a metal deco frame according to the present invention is completed using a plurality of metal bars, a metal bar type material is prepared through a raw material preparation step (S10), a plurality of metal bar type materials prepared in the raw material preparation step (S10) (S20) of cutting the end face of the wafer W.

Here, the process of combining a pair of materials will be described as an example.

At this time, in the end-face machining step (S20), a pair of metal bar type materials are processed, and a shape punching process (S30) is performed in which a part of the processed metal bar type material is punched, A part of which is to be pierced.

The metal bar type material having undergone the punching step S30 is subjected to an NC machining step S40 for etching a part to join the nut to be worked in the surface treatment and a post-machining step, And a nut coupling process (S50) for joining the nut to the etched portion.

A frame bending step (S60) of bending a frame-like shape according to the use of the electronic device by using a metal bar type material after the nut bonding step (S50) as described above, and the metal bar type The both ends of the material are processed into a concavity and convexity, a plurality of teeth, a plurality of projections, or a wedge shape, and then the welding is performed by fitting.

At this time, the pair of materials are composed of the upper end and the lower end of the completed metal décor frame, or the upper and lower ends of the completed metal décor frame are composed of the left side and the right side. (See Figs. 8 and 9)

S10: raw material preparation process
S20: Sectional machining process
S30: Form piercing process
S40: NC machining process
S50: Nut bonding process
S60: Frame bending process
S70: joint joining process

Claims (7)

A method of manufacturing a metal decoy frame for use in a portable electronic device,
A raw material preparation step (S10) for preparing a metal bar type material;
An end face machining step (S20) of bending and cutting the end face of the metal bar type material prepared in the step (S10);
A frame bending step (S60) of bending the metal bar type material processed in the step (S20) into a frame shape according to the use of the electronic device to be used; And
And a joint joining step (S70) for joining both side ends of the frame of the metal bar type material processed in the step (S60)
(20) is bent in an "L" shape in order to improve ease of strength reinforcement and assembly in the end-face machining step (S20).
The method according to claim 1,
Between the end face machining step (S20) and the frame bending step (S60), a punching step (S30) is performed to puncture a part of the metal bar type material processed in the step (S20);
An NC machining step (S40) for performing a surface treatment of the metal bar type material processed in the step (S30) and an etching work for bonding a nut to be worked on in a post-process;
And a nut coupling step (S50) for joining the nut to the etching part of the metal bar type material processed in the step (S40). The metal deco / RTI >
The method according to claim 1,
In the raw material preparation step (S10), a metal bar type material is prepared by cutting a metal plate having a height equal to the width of the completed metal deco frame, or a metal plate material having the same thickness as the finished metal deco frame A method of preparing a metal bar type material by cutting or cutting a metal bar type material or a method of preparing a metal bar type material by cutting a metal bar having the same thickness and width as a finished metal deco frame is applied A method of manufacturing a metal décor frame for use in electronic equipment.
delete The method as claimed in claim 1, wherein, in the joining step (S70), both end portions of the frame before joining the joining portion are processed into a shape such as concavo-convex and concave groove, a plurality of teeth, a plurality of projections and a wedge, And then welding is progressed so that a bonding force and a welding operation are facilitated.
The method according to any one of claims 1 to 3 and 5,
The method of manufacturing a metal decoy frame for use in a portable electronic device according to claim 1, further comprising a post-processing operation step (S80) after the joining step (S70) is completed.
[7] The method of claim 6, wherein the post-treatment work step (S80) comprises at least one of a grinding flat work after welding of the joint part, an anodizing work for minimizing visual naked eye identification of the joint part, a hair line post- Wherein the method comprises the steps of:

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