KR20100073280A - Method of manufacturing upper bracket of seat back frame for vehicle seat by using progressive mold and upper bracket manufactured by the same - Google Patents

Method of manufacturing upper bracket of seat back frame for vehicle seat by using progressive mold and upper bracket manufactured by the same Download PDF

Info

Publication number
KR20100073280A
KR20100073280A KR1020080131910A KR20080131910A KR20100073280A KR 20100073280 A KR20100073280 A KR 20100073280A KR 1020080131910 A KR1020080131910 A KR 1020080131910A KR 20080131910 A KR20080131910 A KR 20080131910A KR 20100073280 A KR20100073280 A KR 20100073280A
Authority
KR
South Korea
Prior art keywords
preform
forming
bending
pilot
bracket
Prior art date
Application number
KR1020080131910A
Other languages
Korean (ko)
Inventor
김수열
김창호
김철호
Original Assignee
조일공업주식회사
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 조일공업주식회사 filed Critical 조일공업주식회사
Priority to KR1020080131910A priority Critical patent/KR20100073280A/en
Publication of KR20100073280A publication Critical patent/KR20100073280A/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06Removing local distortions
    • B21D1/065Removing local distortions by hammering
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20Deep-drawing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D24/00Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/005Multi-stage presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/06Making more than one part out of the same blank; Scrapless working
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/08Dies with different parts for several steps in a process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/88Making other particular articles other parts for vehicles, e.g. cowlings, mudguards

Abstract

Disclosed are a method for manufacturing an upper bracket of a seat back frame using a progressive mold and a bracket manufactured by the method. The manufacturing method includes a piercing step of forming a plurality of pilot holes in a metal plate that is continuously supplied to a mold, a notching step of forming a notch in the plate material on which the pilot holes are formed, and forming a preform by appropriately forming side surfaces from both sides of the plate; A bending / forming step of bending a portion of the preform to form a bent portion, a bending / pilot step of bending the bent portion of the preform at a larger angle to form a bending portion, and pressing the bending portion of the preform completely to increase the edge strength of the bracket A hemming / forming step of increasing, a piercing / pilot step of forming a plurality of openings in the preform with a part of the edges hemmed, and a notching step of cutting the preform that has undergone the piercing / pilot step from the preform in the previous step. do.

Description

TECHNICAL MANUFACTURING UPPER BRACKET OF SEAT BACK FRAME FOR VEHICLE SEAT BY USING PROGRESSIVE MOLD AND UPPER BRACKET MANUFACTURED BY THE SAME}

The present invention relates to an upper bracket of a seat back frame of a vehicle seat, and more particularly, to a method of manufacturing an upper bracket of a seat back frame by using a progressive mold and a bracket manufactured by the method.

In general, a seat back frame for a vehicle seat is connected between an approximately inverted U-shaped main pipe and an upper region of a side plate mounted on both side portions of the inverted U-shaped pipe, It is connected between the upper bracket mounted by arc welding on the upper region of both sides, the side bracket mounted by arc welding on both sides of the inverted U-shaped pipe, and the lower region of both sides of the inverted U-shaped pipe. Both sides of the male pipe are provided with lower pipes mounted by arc welding. Each of the upper bracket and the side bracket is formed in a predetermined shape by cutting a steel plate.

1 is a view schematically showing an upper bracket of a conventional seat back frame. The upper bracket has a flat body portion 201, a T-shaped channel portion 222 formed in the center portion to reinforce the rigidity of the body portion 201, and a plurality of hemming portions formed on the body portion 201. 216 and 226 ', a lower flange 224 protruding along the lower edge, and a pair of side flanges 220 formed on both sides of the main body 201.

A plurality of openings 230 and 232 are formed in the main body 201, and a rectangular protrusion 234 is formed at an upper edge of the main body 201. Rectangular openings 232 support the clips that hold the sheet fabric, and the protrusions 234 are arc welded to both sides of the inverted U-shaped pipe so that the upper bracket is secured to the seat back frame.

 Such an upper bracket is generally manufactured by using a tandem mold. Tandem mold refers to a mold that requires a number of presses and molds to produce a part by applying a process to one mold. The method of forming a product using a tandem mold includes a method of seating a molded product on a mold in a next process using a robot, a method in which a worker directly uses a hand, and a method using a vacuum suction method.

However, in the case of forming a product using a tandem mold in any manner, the number of molds consisting of punches and dies is large, and thus the number of presses for operating the punches also increases. In addition, an operator must be fixedly placed for each press to operate the press. Therefore, since the number of molds and presses increases and the number of workers increases, there is a problem that the production cost of the product increases.

In order to solve this problem, an example of a method of manufacturing an automotive part using a progressive mold is disclosed in Korean Patent No. 10-0794452. The method disclosed in this patent will be described with reference to FIG.

In the piercing step S1, when the steel sheet A is introduced between the upper and lower molds, four holes 10 are simultaneously drilled in the steel sheet. The holes 10 are located on the same line and are continuously drilled to the same diameter.

In the notching stages S2 and S3, notching portions 12 are formed at both sides of the center of the steel sheet. In more detail, in order to form the right bracket 26 in the first notching step S2, the notching part 12 is formed on one side of the steel plate. In the second notching step S3, the notching part 12 is formed on the other side of the steel plate to form the left bracket 26.

In the marking step (S4), the 'L' letter mark is marked on the upper surface of the steel sheet in a state of being fixed by the pilot pin installed on the bottom of the upper mold. In this case, the pilot pins are respectively inserted in the holes 10 formed in the steel sheet to firmly fix the steel sheet.

The bending part 18 is formed by bending the protrusions 16 formed at both sides of the two steel plates which are continuously moving in the forming step S5.

In the restriking step S6, the position of the steel sheet is set while pressing both sides of the steel sheet, that is, the bending part 18, to assist the steel sheet to move to the next step.

Finally, in the cutting steps S7 and S8, the side and center portions of the two steel sheets are cut, respectively. In more detail, each side portion 20 of the steel sheet is cut in the first cutting step S7, and the center portion of the steel sheet in which the side portion is cut in the second cutting step S8 is cut. After the second cutting step, the central cutting chip 22 is separated from the central portion of the steel sheet.

According to the above-described manufacturing process, the steel sheet put into the press apparatus sequentially forms the left bracket 24 and the right bracket 26 at the same time.

The inventors of the present invention have attempted to improve the productivity by developing a technology capable of manufacturing the upper bracket of a seat back frame for a vehicle seat produced using a tandem mold with a progressive mold.

However, until recently there have been several attempts to manufacture automotive parts using progressive molds, but with no successful results. In the case of manufacturing a part using a progressive mold, it is necessary to have a structure design technique, a precision machining technique, and a molding / mould simulation technique of a separate mold for each component. However, much remains to be studied as the technology associated with progressive molds is currently in its infancy. In particular, since the shape of the part is complicated, there is a part to be examined from the press equipment to the molding analysis technique.

The inventors of the present invention in the process of manufacturing the upper bracket of the seat back frame for a vehicle seat using a progressive mold, a number of process parameters, namely 1) calculation of the bending margin according to the bending angle and radius, shape factor, 2) according to the bending margin Calculation of moving distance of the plane, 3) Calculation of flat pattern-layout length, 4) Drawing of flat pattern-layout drawing, 5) Calculation of die blanks to withstand die surface pressure by lateral forces, 6) Calculation of cutting force for each process , 7) process order determination for products with complex processes, and 8) strip-layout drawings.

That is, the inventor of the present invention finds suitable molding conditions according to the verification and correction by the simulation program based on the empirical data on the molding conditions such as mold method, molding force, material properties, production speed, etc., and applied them to the mold design.

An object of the present invention is to provide a method of manufacturing the upper bracket of a seat back frame for a vehicle seat by using a progressive mold to improve the productivity of the bracket.

In order to achieve the above and other objects of the present invention, according to an aspect of the present invention, in the method for manufacturing the upper bracket of the seat back frame for a vehicle seat, a plurality of pilot holes are formed in a metal plate continuously supplied to the mold A piercing step; A notching step of forming a notch in the plate member on which the pilot hole is formed, and forming a preform by appropriately laterally displacing the side portions from both sides of the plate member; Bending and forming a bent portion by bending a portion of the preform; A bending / pilot step of bending the bending portion of the preform at a larger angle to form a bending portion; A hemming / forming step of completely pressing the bending portion of the preform to increase the edge strength of the bracket; A piercing / pilot step of forming a plurality of openings in the preform in which a part of the edge is hemmed; A manufacturing method is provided that includes a notching step of cutting a preform that has undergone the piercing / pilot step from a preform in a previous step.

The notching step includes a first notching step of forming a pair of first notches in a predetermined portion of the metal plate, and forming a second notch of a predetermined shape between the pair of notches, and simultaneously And a secondary notching step of cutting the side portions of the shape.

Between the second notching step and the bending / forming pilot step, an idle / pilot step of transferring the preform to the next step is added while positioning the preform using a pilot pin.

In the bending / forming pilot step, the T-shaped channel is preferably formed at the center of the preform. In addition, it is preferable to form a half moon-shaped groove around the pilot pin in the bending / forming pilot step.

According to the above-described configuration, the production of the upper bracket of the seat back frame using the progressive mold increases the productivity by about four times as compared to the production using the tandem mold. In addition, compared to tandem molds requiring 3 to 4 sets of molds, there is an advantage in that only one set of molds is used and only one expensive press is installed.

Hereinafter, a method of manufacturing an upper bracket of a seat back frame for a vehicle seat according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a diagram illustrating a process of manufacturing an upper bracket of a seat back frame for a vehicle seat using a progressive mold and a strip layout.

Referring to FIG. 2, first, when a metal plate 200 having a predetermined width is supplied to an upper portion of a lower mold, the metal plate 200 may be provided with a plurality of pilot holes 202, preferably in the metal plate 200. Passes through a piercing step S100 of forming two pilot holes 202.

The metal plate 200 on which the pilot holes 202 are formed is subjected to the primary notching step S102 of continuously moving to form a pair of notches 204. As shown in FIG. 3, in the first notching step S102, a protrusion and a protrusion such as 205 are formed as indicated by the reference numeral 203.

The metal plate 200 having a pair of notches 204 is subjected to the second notching step S104 (see FIG. 4). In the second notching step S104, the portion 208 existing between the pair of notches 204 is notched in a predetermined shape so that the protrusion 210 is formed at the center of the plate 200.

At the same time, the side portion 206 of the predetermined shape is cut from both sides of the plate 200 to form a preform 214 of the predetermined shape having a pair of protruding side portions 215. The preforms 214 are interconnected by a preform and a bridge in a later step.

The preform 214, which has undergone the first and second notching steps, inserts a pilot pin (not shown) formed in the upper mold into the pilot hole 202 to position the preform, while transferring the preform to the next step. S106).

Thereafter, the preform 214 formed by cutting both sides in the second notching step S104 passes through the bending / forming pilot step S108. The bending / forming pilot step S108 may bend the edges and some edges of the protrusion 212 of the preform 214 formed in the second notching step S104, as shown in FIG. 5, to bend the parts 216 and 218. ) And bending both side portions 214 along a predetermined curvature to form the bent portion 220, and at the same time, bending the edges along the protruding portion 210 of the central portion to form the bent portions 224 and 203 ′. Form. In addition, a T-shaped channel 222 is formed at the center of the preform 214, and a recess 223 is formed below the bent portion 220.

When the upper bracket of the seat back frame was molded using a 250 ton press and a 1800 × 950 mm bolster, the bending / forming pilot step (S108) had a problem that the pitch of the strip was shortened by 0.4 mm. In order to prevent such a problem, it is preferable to form a half moon-shaped groove on the side of the pilot pin 202.

The preform 214 having the bent portions 216, 220, and 224 inserts a pilot pin (not shown) formed in the upper mold into the pilot hole 202 to position the preform, while transferring the preform to the next step. The process goes to step S110.

Thereafter, the preform bends the bent portions 218 and 203 'which are bent in the bending / forming pilot stage S108 inward at a larger angle in the bending / pilot stage S112, thereby bending the bending portions 226 and 228, respectively. Form.

The bending portions 226 and 228 thus formed are machined to be fully folded in the hemming / forming pilot step S114 (see FIG. 6). The bending portions 226 and 228 are arranged to cross each other, and serves to increase the edge strength of the upper bracket.

The preform having a part of the edge hemmed is formed after the plurality of openings 230 and 232 are formed in the piercing / pilot step S116, and the end of the recess 223 of the preform is cut along the edge in the notching step S118. Finally, the upper bracket is molded.

Although the present invention has been described with reference to the above embodiments, the protection scope to be protected is not limited by the above embodiments. The protection scope of the present invention is determined by the following claims.

1 shows schematically a top bracket of a conventional seat back frame.

FIG. 2 is a view illustrating a process of manufacturing an upper bracket of a seat back frame for a vehicle seat using a progressive mold and a strip layout; FIG.

3 is a view showing in detail the process of the metal sheet to perform the first notching step.

4 is a view illustrating a process in which a preform is formed through a second notching metal sheet.

FIG. 5 illustrates in detail the bending / forming pilot step of forming bends at the edges of the preform; FIG.

FIG. 6 shows a process in which the preform is processed in a hemming / forming pilot stage. FIG.

7 is a view showing a process of manufacturing an automotive part using a conventional progressive mold.

<Explanation of symbols for the main parts of the drawings>

200: metal plate 202: pilot hole

204: notch 203, 205: protrusion

206: side portion 214: preform

216, 218, 220: bend

222: channel 226, 228: bending part

Claims (7)

  1. In the method of manufacturing the upper bracket of the seat back frame for a vehicle seat,
    A piercing step of forming a plurality of pilot holes in the metal plate continuously supplied to the mold;
    A notching step of forming a notch in the plate member on which the pilot hole is formed, and forming a preform by appropriately laterally displacing the side portions from both sides of the plate member;
    Bending and forming a bent portion by bending a portion of the preform;
    A bending / pilot step of bending the bending portion of the preform at a larger angle to form a bending portion;
    A hemming / forming step of completely pressing the bending portion of the preform to increase the edge strength of the bracket;
    A piercing / pilot step of forming a plurality of openings in the preform in which a part of the edge is hemmed;
    And a notching step of cutting the preform that has undergone the piercing / pilot step from the preform in the previous step.
  2. The method of claim 1,
    The notching step includes a first notching step of forming a pair of first notches in a predetermined portion of the metal plate, and forming a second notch of a predetermined shape between the pair of notches, and at the same time from both sides of the plate. And a second notching step of cutting the side portions of the shape.
  3. The method of claim 1,
    Protruding portion is formed in the preform in the first notching step.
  4. The method of claim 1,
    And an idle / pilot step of transferring the preform to the next step while positioning the preform using pilot pins between the second notching step and the bending / forming pilot step.
  5. The method of claim 1,
    T-shaped channel is formed in the center of the preform in the bending / forming pilot step.
  6. The method of claim 5,
    And forming a half-moon-shaped groove around the pilot pin in the bending / forming pilot step.
  7. An upper bracket of a seat back frame for a vehicle seat manufactured by the manufacturing method according to any one of claims 1 to 6.
KR1020080131910A 2008-12-23 2008-12-23 Method of manufacturing upper bracket of seat back frame for vehicle seat by using progressive mold and upper bracket manufactured by the same KR20100073280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080131910A KR20100073280A (en) 2008-12-23 2008-12-23 Method of manufacturing upper bracket of seat back frame for vehicle seat by using progressive mold and upper bracket manufactured by the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080131910A KR20100073280A (en) 2008-12-23 2008-12-23 Method of manufacturing upper bracket of seat back frame for vehicle seat by using progressive mold and upper bracket manufactured by the same

Publications (1)

Publication Number Publication Date
KR20100073280A true KR20100073280A (en) 2010-07-01

Family

ID=42636261

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080131910A KR20100073280A (en) 2008-12-23 2008-12-23 Method of manufacturing upper bracket of seat back frame for vehicle seat by using progressive mold and upper bracket manufactured by the same

Country Status (1)

Country Link
KR (1) KR20100073280A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013103267A2 (en) * 2012-01-06 2013-07-11 주식회사진영정기 Method for molding support patterns
KR101286450B1 (en) * 2011-12-26 2013-07-16 주식회사 나이스맥 Frame bending device
KR101292612B1 (en) * 2012-01-06 2013-08-02 주식회사진영정기 Method of manufacturing support pattern
CN103551455A (en) * 2013-09-27 2014-02-05 浙江龙生汽车部件股份有限公司 Progressive die and method for processing side rail wall panel of automotive seat
CN103736855A (en) * 2013-12-27 2014-04-23 柳州职业技术学院 Multi-station progressive die for auxiliary fascia console body rear mounting support
CN104014645A (en) * 2014-06-18 2014-09-03 苏州旭创精密模具有限公司 Method for machining shaft valve fastener
CN104014641A (en) * 2014-06-18 2014-09-03 苏州旭创精密模具有限公司 Method for machining supporting framework
CN104096739A (en) * 2013-04-11 2014-10-15 昆山昌禾精密电子有限公司 Processing technique for high-precision magnetic levitation motor shell
CN104668366A (en) * 2014-12-17 2015-06-03 吉林博仁科技股份有限公司 Continuous forming die for Audi B9U1 left/right rear brackets
CN104785638A (en) * 2015-04-16 2015-07-22 浙江雅虎汽车部件有限公司 Automobile headrest guide pipe continuous die
CN105033040A (en) * 2014-12-30 2015-11-11 宁波旭友交通电器有限公司 Vehicle seat framework preparation method
CN105344828A (en) * 2015-11-30 2016-02-24 吴中区光福良盛机械厂 Furniture partition supporting seat die
CN105344824A (en) * 2015-11-30 2016-02-24 吴中区光福良盛机械厂 Male mold of furniture separation plate support base mold
CN105935720A (en) * 2016-06-28 2016-09-14 无锡诺飞高新技术有限公司 Continuous stamping die for automobile seat foundation
KR101704803B1 (en) * 2016-01-07 2017-02-09 주식회사 대흥정밀 press device for manufacture cable cleat
KR20180108196A (en) * 2017-03-24 2018-10-04 표용옥 Fuse housing method production of volume damper handle for fire prevention
KR20190072751A (en) 2017-12-18 2019-06-26 (주)씨케이씨 Manufacturing method of bracket for vehicle seat
KR102022080B1 (en) * 2018-11-26 2019-09-17 김기용 Pall ring plates and pall ring press molds for automatic manufacturing
KR102093681B1 (en) * 2019-08-14 2020-05-29 선우정밀(주) Method and apparatus for continuous manufacture of aeration pipe clips
KR102112547B1 (en) * 2019-02-28 2020-06-04 유아이엘 주식회사 Method for manufacturing cover bracket of camera module for smart phone

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101286450B1 (en) * 2011-12-26 2013-07-16 주식회사 나이스맥 Frame bending device
WO2013103267A2 (en) * 2012-01-06 2013-07-11 주식회사진영정기 Method for molding support patterns
KR101292612B1 (en) * 2012-01-06 2013-08-02 주식회사진영정기 Method of manufacturing support pattern
KR101292613B1 (en) * 2012-01-06 2013-08-02 주식회사진영정기 Method of manufacturing support pattern
WO2013103267A3 (en) * 2012-01-06 2013-09-26 주식회사진영정기 Method for molding support patterns
CN104096739A (en) * 2013-04-11 2014-10-15 昆山昌禾精密电子有限公司 Processing technique for high-precision magnetic levitation motor shell
CN103551455A (en) * 2013-09-27 2014-02-05 浙江龙生汽车部件股份有限公司 Progressive die and method for processing side rail wall panel of automotive seat
CN103736855A (en) * 2013-12-27 2014-04-23 柳州职业技术学院 Multi-station progressive die for auxiliary fascia console body rear mounting support
CN104014645A (en) * 2014-06-18 2014-09-03 苏州旭创精密模具有限公司 Method for machining shaft valve fastener
CN104014641A (en) * 2014-06-18 2014-09-03 苏州旭创精密模具有限公司 Method for machining supporting framework
CN104014641B (en) * 2014-06-18 2016-05-04 苏州旭创精密模具有限公司 A kind of support frame processing method
CN104668366A (en) * 2014-12-17 2015-06-03 吉林博仁科技股份有限公司 Continuous forming die for Audi B9U1 left/right rear brackets
CN105033040A (en) * 2014-12-30 2015-11-11 宁波旭友交通电器有限公司 Vehicle seat framework preparation method
CN104785638A (en) * 2015-04-16 2015-07-22 浙江雅虎汽车部件有限公司 Automobile headrest guide pipe continuous die
CN105344828A (en) * 2015-11-30 2016-02-24 吴中区光福良盛机械厂 Furniture partition supporting seat die
CN105344824A (en) * 2015-11-30 2016-02-24 吴中区光福良盛机械厂 Male mold of furniture separation plate support base mold
KR101704803B1 (en) * 2016-01-07 2017-02-09 주식회사 대흥정밀 press device for manufacture cable cleat
CN105935720A (en) * 2016-06-28 2016-09-14 无锡诺飞高新技术有限公司 Continuous stamping die for automobile seat foundation
CN105935720B (en) * 2016-06-28 2018-01-16 无锡诺飞高新技术有限公司 Automotive seat lower margin continuous stamping die
KR20180108196A (en) * 2017-03-24 2018-10-04 표용옥 Fuse housing method production of volume damper handle for fire prevention
KR20190072751A (en) 2017-12-18 2019-06-26 (주)씨케이씨 Manufacturing method of bracket for vehicle seat
KR102022080B1 (en) * 2018-11-26 2019-09-17 김기용 Pall ring plates and pall ring press molds for automatic manufacturing
KR102112547B1 (en) * 2019-02-28 2020-06-04 유아이엘 주식회사 Method for manufacturing cover bracket of camera module for smart phone
KR102093681B1 (en) * 2019-08-14 2020-05-29 선우정밀(주) Method and apparatus for continuous manufacture of aeration pipe clips

Similar Documents

Publication Publication Date Title
DE10358502B3 (en) Production of a hollow profile used as a branched part for pipes comprises stamping a secondary molding element to connect to a further component in a pre-curved region before winding
WO2014208181A1 (en) Press forming method and press forming device
US7971466B2 (en) Press-formed member having corner portion, press-formed member manufacturing apparatus and press-formed member manufacturing method
CN104870118B (en) Punch components, its manufacture method and manufacture device
JP2013514185A (en) Method and apparatus for manufacturing half-shell parts
EP2902128B1 (en) Production method for centre-pillar reinforcement
EP2143511A1 (en) Beam formed of a blank sheet and method for its manufacturing
CA2788845A1 (en) Press-forming method of component with l shape
US7748743B2 (en) Structural or chassis component for a motor vehicle, and method of making such a structural or chassis component
JP5151784B2 (en) Center pillar outer panel manufacturing method and center pillar outer panel blank
JP2010075946A (en) Method of manufacturing closed structural member, press-forming apparatus, and closed structural member
KR101466660B1 (en) Metal blank with binder trim component and method
JP4693475B2 (en) Press molding method and mold used therefor
JP4766084B2 (en) Work bending method and apparatus
EP0288705A2 (en) Method of making complicated sheet metal parts, and device for carrying out the method
US20180078993A1 (en) Method of forming a closed cross-sectional structure
US8276428B2 (en) Device for manufacturing profiles
US9149854B2 (en) Stamping apparatus
JP2007190588A (en) Method for press-forming metallic sheet
JP2007090426A (en) Press forming die, press forming method and metal plate provided with bead mark
US20160375477A1 (en) Hat shaped cross-section component manufacturing method
KR101688475B1 (en) Press forming method
EP2305395B1 (en) Press working equipment and press working method
CN103447379A (en) Method of forming hot press product and hot press product thereof
JP5470812B2 (en) Method and apparatus for manufacturing a press-molded product, and press-molded product

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee