KR20140068620A - Forming metallic pattern for pipe - Google Patents

Forming metallic pattern for pipe Download PDF

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Publication number
KR20140068620A
KR20140068620A KR1020120136321A KR20120136321A KR20140068620A KR 20140068620 A KR20140068620 A KR 20140068620A KR 1020120136321 A KR1020120136321 A KR 1020120136321A KR 20120136321 A KR20120136321 A KR 20120136321A KR 20140068620 A KR20140068620 A KR 20140068620A
Authority
KR
South Korea
Prior art keywords
pipe
block
support
expanding
end portion
Prior art date
Application number
KR1020120136321A
Other languages
Korean (ko)
Inventor
이문용
정명섭
Original Assignee
주식회사 성우하이텍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 성우하이텍 filed Critical 주식회사 성우하이텍
Priority to KR1020120136321A priority Critical patent/KR20140068620A/en
Publication of KR20140068620A publication Critical patent/KR20140068620A/en

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Classifications

    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • 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
    • B21D37/10—Die sets; Pillar guides

Abstract

Disclosed is a forming mold for expanding a pipe. According to an embodiment of the present invention, the forming mold for expanding a pipe includes a supporting block which is arranged in the center of a lower base of a press equipment, includes a supporting hole formed inside to support an outer circumferential side of a cylindrical pipe to be molded, and includes a supporting surface for pipe expansion molding in an inner circumferential side of the supporting hole; a mounting block which is formed as a circular block to be installed under the supporting hole and is inserted into a lower end portion of the cylindrical pipe to be molded to mount the lower end portion of the cylindrical pipe; and a pipe expansion steel which is formed as a circular block to be installed on an upper slider of the press equipment, includes a pipe expansion molding surface, corresponding the supporting surface for pipe expansion molding, in an outer circumferential side of an lower end portion thereof, and is inserted into an inside of an upper end portion of the cylindrical pipe to expand the cylindrical pipe.

Description

[0001] FORMING METALIC PATTERN FOR PIPE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an expanding forming forming die for a pipe, and more particularly, to an expanding forming forming die for pipe expansion for expanding one end of a circular pipe.

Generally, the circular tube is used in various industrial fields, and in particular, in a vehicle, an example in which a vehicle is applied to a bumper stage or the like can be mentioned.

FIG. 1 is an example of a bumper stall 20 manufactured using such a circular pipe. In this bumper stall 20, the two circular pipe members 21 and 22 are fitted with interference fit through an axial tube and an expanding molding Thereby forming the interference fit portion 30.

The one side tube member 22 is formed with four beads B in a concave shape at four places on the outer circumferential surface to increase the collision performance.

However, various methods such as hammer ring, forging, and pressing can be applied to expand and contract the one end portion of the circular tube 22 as described above. However, It is disadvantageous in that it is difficult to perform expansion-molding in a predetermined shape with a narrow diameter.

An embodiment of the present invention is to provide an expanding forming forming die for a pipe which is formed between an upper slider and a lower base of a press facility to expand and mold one end portion into a predetermined shape while maintaining the initial shape of the circular pipe.

In one or more embodiments of the present invention, a support hole is formed in the center of the lower base of the press facility to support the outer circumferential surface of the circular pipe to be formed, and an upper portion of the inner circumferential surface of the support hole is formed A support block; A mounting block formed of a circular block and installed at a lower portion of a support hole of the support block and inserted into a lower end portion of the circular pipe to be formed to seat the lower end of the circular pipe; And an expanding steel plate which is formed on the upper slider of the press facility and formed on the outer circumferential surface of the lower end portion by an expanding molding surface corresponding to the expanding forming support surface and inserted into the upper end portion of the circular pipe, And a bending portion of the bending portion.

Further, the apparatus may further include guiding means formed between the lower base and the upper slider for guiding the upward and downward movement of the upper slider relative to the lower base.

Further, the guide means may include a guide post installed downward through the post holders at each corner of the upper slider; And a post housing installed at each corner of the lower base corresponding to the guide posts and guiding the guide posts.

In addition, a seating groove into which the lower end of the circular pipe is inserted may be formed between the inner circumferential surface of the support hole of the support block and the outer circumferential surface of the seating block.

In addition, the seating block may be installed on the lower base through a seating die on which the lower end of the circular tube is supported.

The embodiment of the present invention is characterized in that one end portion of a circular pipe is formed by a supporting block and an expanding steel between an upper slider and a lower base of a press facility by an expanding pipe so that the support block supports the shape of the circular pipe, The one end portion can be formed into the shape of a constant expanded portion while maintaining the shape thereof.

1 is a perspective view of an example of a bumper stait unit in which a bead is formed in a circular pipe.
2 is a side cross-sectional view of a tube-expanding forming metal mold according to an embodiment of the present invention.
FIG. 3 through FIG. 5 are operation states of the expanding forming forming mold for pipes according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood, however, that the present invention is not limited to the illustrated embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention. .

2 is a side cross-sectional view of a tube-expanding forming metal mold according to an embodiment of the present invention.

Referring to FIG. 2, the pipe forming forming tool 1 for pipe according to the embodiment of the present invention includes a support block 11 formed at the center on the lower base 3 of the press facility, And a bending steel (15) provided on the upper slider (5) of the press facility.

The support block 11 is installed at the center of the lower base 3 and has a support hole H formed therein to support the outer circumferential surface of the circular tube 10 to be formed.

The support block 11 is formed on the inner circumferential surface of the support hole H with an enlargement forming support surface F1 corresponding to the outer circumferential surface of the upper end of the circular tube 10 to be formed.

The seating block 13 is formed as a circular block and is installed under the support hole H of the support block 11. The seating block 13 is inserted into the lower end of the circular pipe 10 to be formed, .

A seating groove G is formed between the outer circumferential surface of the seating block 13 and the inner circumferential surface of the support hole H of the support block 11 to insert the lower end of the circular tube 10.

The seating block 13 is installed on the lower base 3 through a seating die 17 in which the lower end of the circular tube 10 is supported.

The expanded steel 15 is formed as a circular block and is installed at the center of the upper slider 5 and has an enlarged expansion forming surface F2 formed on the outer peripheral surface of the lower end portion corresponding to the expanded- And is configured to expand and contract the circular pipe (10) while being inserted into the upper end portion of the pipe (10).

Between the lower base 3 and the upper slider 5 is formed guiding means 7 for guiding the upward and downward movement of the upper slider 5 relative to the lower base 3.

The guide means 7 includes a guide post 7b disposed at each corner of the upper slider 5 via a post holder 7a and a guide post 7b provided at a lower end of the lower base 3 And a post housing 7c provided at each corner of the guide post 7b for guiding the guide post 7b.

3, the circular tube 10 to be molded is inserted into the support hole H of the support block 11, so that the operation of the tube expansion forming tool 1 having the above- So that the lower end thereof is inserted into the seating groove G between the seating block 13 and the inner peripheral surface of the supporting hole H so that the lower end of the circular tube 10 is seated on the seating die 17. [

4, when the upper slider 5 is lowered, the upper end of the inner circumferential surface of the circular pipe 10 is guided to the support block 11 through the expanding forming surface F2 while the expanding steel 15 is lowered, Is pressed against the expanding forming support surface (F1) of the expanding molding support surface (F1).

5, after the upper end of the outer circumference of the circular pipe 10 is expanded and expanded, the upper slider 5 is driven to move up so that the expanded steel 15 is removed from the circular pipe 10, , The circular tube 10 whose one end is expanded and formed is taken out from the support block 11. [

 Thus, the expanded steel 15 and the support block 11 are molded while supporting the molded part of the circular pipe 10 inwardly and outwardly, thereby producing the circular pipe 10 whose one end is formed with the enlarged diameter without deforming the initial shape.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

1: Expanding forming mold 3: Lower base
5: upper slider 7: guiding means
7a: Post holder 7b: Guide post
7c: post housing 10: circular tube
11: support block 13: seating block
15; Expanding Steel 17: Seat Dies
G: seat home

Claims (5)

Wherein a support hole is formed in the center of the lower base of the press facility to support an outer circumferential surface of the circular pipe to be formed,
A mounting block formed of a circular block and installed at a lower portion of a support hole of the support block and inserted into a lower end portion of the circular pipe to be formed to seat the lower end of the circular pipe;
And an expanding steel plate which is formed on the upper slider of the press facility and formed on the outer circumferential surface of the lower end portion by an expanding molding surface corresponding to the expanding forming support surface and inserted into the upper end portion of the circular pipe, ;
Wherein the bushing comprises a bushing. The method according to claim 1,
Further comprising guiding means formed between the lower base and the upper slider for guiding the upward and downward movement of the upper slider relative to the lower base. 3. The method of claim 2,
The guide means
A guide post installed downward through the post holder at each corner of the upper slider; And
A post housing installed at each corner of the lower base corresponding to the guide posts and guiding the guide posts;
And a bellows-shaped bellows. The method according to claim 1,
Wherein a seating groove is formed between the inner circumferential surface of the support hole of the support block and the outer circumferential surface of the seating block to receive the lower end of the circular pipe. 5. The method of claim 4,
The seating block
Wherein the lower tube is mounted on the lower base through a seating die on which the lower end of the circular tube is supported.
KR1020120136321A 2012-11-28 2012-11-28 Forming metallic pattern for pipe KR20140068620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120136321A KR20140068620A (en) 2012-11-28 2012-11-28 Forming metallic pattern for pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120136321A KR20140068620A (en) 2012-11-28 2012-11-28 Forming metallic pattern for pipe

Publications (1)

Publication Number Publication Date
KR20140068620A true KR20140068620A (en) 2014-06-09

Family

ID=51124338

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120136321A KR20140068620A (en) 2012-11-28 2012-11-28 Forming metallic pattern for pipe

Country Status (1)

Country Link
KR (1) KR20140068620A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111036723A (en) * 2019-12-23 2020-04-21 宁波思明汽车科技股份有限公司 Production process of edge-curling decorative tail pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111036723A (en) * 2019-12-23 2020-04-21 宁波思明汽车科技股份有限公司 Production process of edge-curling decorative tail pipe
CN111036723B (en) * 2019-12-23 2021-03-09 宁波思明汽车科技股份有限公司 Production process of edge-curling decorative tail pipe

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