KR101787690B1 - Step forming method using press process - Google Patents

Step forming method using press process Download PDF

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Publication number
KR101787690B1
KR101787690B1 KR1020160020261A KR20160020261A KR101787690B1 KR 101787690 B1 KR101787690 B1 KR 101787690B1 KR 1020160020261 A KR1020160020261 A KR 1020160020261A KR 20160020261 A KR20160020261 A KR 20160020261A KR 101787690 B1 KR101787690 B1 KR 101787690B1
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KR
South Korea
Prior art keywords
substrate
forming
press mold
present
forming method
Prior art date
Application number
KR1020160020261A
Other languages
Korean (ko)
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KR20170098425A (en
Inventor
최정일
Original Assignee
인플러스 주식회사
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Priority to KR1020160020261A priority Critical patent/KR101787690B1/en
Publication of KR20170098425A publication Critical patent/KR20170098425A/en
Application granted granted Critical
Publication of KR101787690B1 publication Critical patent/KR101787690B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/04—Centering the work; Positioning the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14—Dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders

Abstract

The present invention relates to a step forming method using a pressing process in which a residual portion that hinders the perpendicularity is easily removed by increasing the accuracy by generating between steps.
The step forming method using the press process of the present invention is a method of forming a first surface and a third surface having a step difference from the second surface on a substrate having a first surface and a second surface by using a pressing process. The step forming method comprising: fixing the substrate by applying pressure to the first surface using a first portion of the press mold; And forming the third surface by plastic deformation of the substrate using a second portion of the press mold; . And the second portion of the press mold has a protrusion protruding in a moving direction of the second portion from a fourth surface formed between the first surface and the third surface and a portion where the third surface meets. do.
According to the step forming method of the present invention, it is possible to minimize the production time and the production cost by forming the step easily with a pressing process.

Description

[0001] STEP FORMING METHOD USING PRESS PROCESS [0002]

The present invention relates to a step forming method using a pressing process, and more particularly, to a step forming method using a pressing process in which a residual portion which hinders the perpendicularity is easily removed by increasing the accuracy by being generated between steps.

In production of precision parts such as camera modules, jigs to be mounted and transported are widely used. In recent years, as the need for miniaturization of products has increased, it is required to seat components with higher precision, and the jigs must be precisely machined accordingly.

1 shows a plan view and a sectional view of a jig on which a camera module is mounted.

Referring to FIG. 1, the jig 10 has a first surface 11, a second surface 12, a third surface 13, and a fourth surface 14. Here, the third surface 13 is formed so as to have a step with the first surface 11 and the second surface 12, respectively, and the third surface 13 and the fourth surface 14 have a right angle.

The camera module to be processed is placed on the third surface 13 and the movement to the right and left is limited by the fourth surface 14. [ The necessary processes (lens attaching process, actuator attaching process, etc.) are performed on the camera module thus mounted, and finally, a completed camera module is obtained.

In order for the camera module to be precisely produced, it is essential that the camera module is correctly seated in the jig 10. [ It is important that the third surface 13 and the fourth surface 14 form a right angle, although the flatness of the third surface 13 is also important for an accurate seating of the camera module.

The jig 10 is formed by forming a hole 15 on a base material having a first surface 11 and a second surface 12 by wire cutting electric discharge machining, The third surface 13 and the fourth surface 14 are formed.

Wire cutting electric discharge machining and milling machine are superior in terms of precision but have a problem that productivity is low due to excessive production time and production cost.

It is an object of the present invention to provide a method of forming a step using a pressing process in which a residual portion which hinders the perpendicularity is easily removed by increasing the precision, .

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a step forming method using a press process, comprising: pressing a substrate having a first surface and a second surface with a first surface and a third surface having a step with the second surface, . The step forming method comprising: fixing the substrate by applying pressure to the first surface using a first portion of the press mold; And forming the third surface by plastic deformation of the substrate using a second portion of the press mold; . And the second portion of the press mold has a protrusion protruding in a moving direction of the second portion from a fourth surface formed between the first surface and the third surface and a portion where the third surface meets. do.

According to another aspect of the present invention, there is further included a step of forming the boundary of the third surface using the third portion of the press mold after the step of forming the third surface.

According to another aspect of the present invention, a stopper inserted into the first surface is protruded from the first portion of the press die to prevent the substrate from being pushed.

According to another aspect of the present invention, the protrusion has a semi-circular shape.

According to still another aspect of the present invention, the first surface, the second surface, and the third surface are all planar.

According to another aspect of the present invention, the first surface, the second surface, and the third surface are all parallel.

According to another aspect of the present invention, the fourth surface and the first surface, and the fourth surface and the third surface are at right angles, respectively.

According to still another aspect of the present invention, there is further included a step of removing the bur after the boring step.

According to the step forming method of the present invention, it is possible to minimize the production time and the production cost by forming the step easily with a pressing process.

1 shows a plan view and a sectional view of a jig on which a camera module is mounted.
2 is a flowchart of a step forming method according to an embodiment of the present invention.
3 is a side cross-sectional view for explaining each step of Fig.
Fig. 4 shows various modifications of the projections of the second part of the press die.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

In the present specification, when the same reference numerals are used to denote the same elements even when different reference numerals are used, the same reference numerals are used as much as possible.

The sizes and thicknesses of the individual components shown in the figures are shown for convenience of explanation and the present invention is not necessarily limited to the size and thickness of the components shown.

Hereinafter, an embodiment of the step forming method of the present invention will be described with reference to the accompanying drawings.

FIG. 2 is a flowchart of a step forming method according to an embodiment of the present invention, and FIG. 3 is a side sectional view for explaining each step of FIG. 2. FIG. Figure 4 also shows various variations of the protrusion of the second part of the press die.

First, the press mold 100 will be described with reference to Fig. 3 (a). It should be noted that although a mold for supporting the second surface 12 exists, it is omitted in the drawing. The press mold 100 is divided into a first portion 110, a second portion 120 and a third portion 130 and sequentially presses the substrate 10 according to the respective steps described below.

Referring to FIG. 2, the step forming method of the present embodiment includes a step of fixing a substrate (S10), a step of forming a step (S20), a step of boring the substrate (S30) S40).

3 (b), the base 10 is fixed by applying pressure to the first surface 11 using the first portion 110 of the press mold 100 (S10).

Here, the substrate 10 may be any material that can be plastically deformed by press working. That is, as the substrate 10, a metal material for plastic working may be selected, and may be, for example, aluminum, iron, copper, and alloys thereof.

The substrate 10 may be a sheet having a first side 11 and a second side 12, but is not limited thereto. Here, the first surface 11 and the second surface 12 are illustrated as being parallel planes, but not limited thereto. The first surface 11 and the second surface 12 are formed before the present method and may be formed in any manner.

The stopper 111 inserted into the first surface 11 may be pressed against the first surface 11 of the press mold 100 in order to more securely prevent the substrate 10 from being pushed. 1 portion 110 of the first embodiment.

Thereafter, the third surface 13 and the fourth surface 14 are formed by plastic deformation of the base material using the second portion 120 of the press mold 100 (S20).

The second portion 120 of the press mold 100 is moved from the portion where the fourth surface 14 and the third surface 13 formed between the first surface 11 and the third surface 13 meet, And a protrusion 121 protruding in the moving direction of the portion 120 (downward in Fig. 3). A recessed potion 16 is formed between the third surface 13 and the fourth surface 14 of the substrate 10.

In this embodiment, the protrusion 121 is illustrated as being semicircular, but this is merely one example, and may have various forms. For example, referring to FIGS. 4A and 4B, the cross-section of the projections 121 'and 121' 'of the second portions 120' and 120 '' may have a triangular shape, (C), the cross section of the protrusion 121 '' 'of the second portion 120' '' may be in the shape of an ellipse. It goes without saying that the shapes of the various protrusions 121 can be changed.

The third surface 13 and the fourth surface 14 are discontinued by the recess portion 16 because of the shape of the press mold 100, but the third surface 13 and the fourth surface 14 are perpendicular to the third surface 13 and the fourth surface 14, The degree can be accomplished excellently. Therefore, it is possible to precisely control the position of the electronic component that is seated by being in contact with the third surface 13 and the fourth surface 14 at the same time.

Thereafter, the base material 10 is perforated to form the boundary of the third surface 13 using the third portion 130 of the press mold 100 (S30).

This step S30 is the same as the general perforation process or the cutting process. By this step (S30), the material pushed by the previous step (S20) can be cut. The start of the present step S30 may be the same as the previous step S20 as shown in FIG. 3C. However, after the completion of the previous step S20, the present step S30 as shown in FIG. It is desirable to complete it.

Thereafter, a step of removing the bur is performed (S40). The burr can be removed by using the conventional method.

The third surface 13 having a step with respect to the first surface 11 and the second surface 12 can be formed by the step forming method described above. The first surface 11, the second surface 12, and the third surface 13 may all be planar. Also, the first surface 11, the second surface 12, and the third surface 13 may all be parallel. The fourth surface 14 and the first surface 11 and the fourth surface 14 and the third surface 13 may be at right angles. However, it should be noted that the present invention is not limited thereto. That is, the fourth surface 14 and the first surface 11, and the fourth surface 14 and the third surface 13 may be angled other than the right angle. This can be modified depending on the shape of the object (for example, an electronic part) placed on the jig 10. [

According to the step forming method described above, it is possible to produce a product having a step (e.g., a precision jig for producing a camera module) in a short time, and high productivity can be expected.

It should be noted that the above-described puncturing step S30 may be omitted. That is, only the step of fixing the substrate (Step S10) and the step of forming the third surface (Step S20) may be performed for forming the stepped portion without puncturing.

This method of forming a step can be applied to various products, particularly to a product in which the first and third sides need to be stepped to form a certain angle. As mentioned above, it can be used in the production of jigs for precision parts such as jigs for camera module production.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

10 ... The substrate (jig)
11 ... The first side
12 ... Second side
13 ... Third Side
14 ... 4th face
15 ... hall
16 ... Recessed part
100 ... Press mold
110 ... The first part
111 ... stopper
120 ... The second part
121 ... projection part
130 ... Third part

Claims (8)

A method of forming a third surface having a stepped portion with the first surface and the second surface on a base material having a first surface and a second surface by using a pressing process,
Fixing the substrate by applying pressure to the first surface using a first portion of the press mold; And
Forming the third surface by plastic deformation of the substrate using a second portion of the press mold; Lt; / RTI >
And the second portion of the press mold has a protrusion protruding in a moving direction of the second portion from a fourth surface formed between the first surface and the third surface and a portion where the third surface meets. A step forming step using a pressing process. The method according to claim 1,
Further comprising the step of forming the boundary of the third surface by using a third portion of the press mold after the step of forming the third surface, . The method according to claim 1,
And a stopper inserted into the first surface is protruded from the first portion of the press die to prevent the substrate from being pushed. The method according to claim 1,
Wherein the projecting portion has a semicircular shape. The method according to claim 1,
Wherein the first surface, the second surface, and the third surface are all planar. 6. The method of claim 5,
Wherein the first surface, the second surface, and the third surface are all parallel. The method according to claim 6,
Wherein the fourth surface and the first surface, and the fourth surface and the third surface are at right angles, respectively. 3. The method of claim 2,
Further comprising the step of removing the bur after the perforating step.
KR1020160020261A 2016-02-21 2016-02-21 Step forming method using press process KR101787690B1 (en)

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KR1020160020261A KR101787690B1 (en) 2016-02-21 2016-02-21 Step forming method using press process

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Application Number Priority Date Filing Date Title
KR1020160020261A KR101787690B1 (en) 2016-02-21 2016-02-21 Step forming method using press process

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KR20170098425A KR20170098425A (en) 2017-08-30
KR101787690B1 true KR101787690B1 (en) 2017-10-30

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004098139A (en) 2002-09-11 2004-04-02 Toto Ltd Apparatus and method for manufacturing metallic bent pipe
JP2011224609A (en) * 2010-04-19 2011-11-10 Alps Electric Co Ltd Gear member, method of and device for forming tooth shape thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004098139A (en) 2002-09-11 2004-04-02 Toto Ltd Apparatus and method for manufacturing metallic bent pipe
JP2011224609A (en) * 2010-04-19 2011-11-10 Alps Electric Co Ltd Gear member, method of and device for forming tooth shape thereof

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