KR20030096970A - Bolt-Dot Press Mold for leveling - Google Patents

Bolt-Dot Press Mold for leveling Download PDF

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Publication number
KR20030096970A
KR20030096970A KR1020020034078A KR20020034078A KR20030096970A KR 20030096970 A KR20030096970 A KR 20030096970A KR 1020020034078 A KR1020020034078 A KR 1020020034078A KR 20020034078 A KR20020034078 A KR 20020034078A KR 20030096970 A KR20030096970 A KR 20030096970A
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KR
South Korea
Prior art keywords
bolt
dot
press mold
dots
nuts
Prior art date
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KR1020020034078A
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Korean (ko)
Inventor
박종호
Original Assignee
(주)신흥산업
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Priority to KR1020020034078A priority Critical patent/KR20030096970A/en
Publication of KR20030096970A publication Critical patent/KR20030096970A/en

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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
    • B21D3/00Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
    • 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
    • B21D3/00Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/14Recontouring
    • 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
    • B21D3/00Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/16Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

PURPOSE: A bolt-dot press mold for correcting flatness of the forming artifact is provided to remove torsion generated at a forming artifact in which a plurality of prominences, depressions and holes are formed on the sheet material by drawing and punching a sheet material. CONSTITUTION: In a means for correcting flatness of a forming artifact, the bolt-dot press mold for correcting flatness of the forming artifact is characterized in that a plural upper nuts(12) and lower nuts(22) are arranged with being oppositely directed to each other on the bottom of an upper die(10) and the upper surface of a lower die(20) respectively, and one end part of upper bolt dots(11) and lower bolt dots(21) formed in a rod shape is united with thus assembled into the upper nuts(12) and lower nuts(22) respectively so that both end parts of the rod shaped upper bolt dots(11) and lower bolt dots(21) are reciprocally contacted to each other.

Description

포밍 가공품의 평탄도 보정용 볼트-도트 프레스 금형{Bolt-Dot Press Mold for leveling}Bolt-Dot Press Mold for flatness correction of forming products

본 발명은 판재를 드로잉 또는 펀칭하여 판재에 상당량의 요철 및 구멍등을성형시킨 포밍 가공품에있어서 발생된 토션 등을 제거하기 위한 것으로 포밍 가공품의 평탄도 보정용 볼트-도트 프레스 금형에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt-dot press die for flatness correction of a formed product, for removing torsion generated in a formed product in which a significant amount of irregularities and holes are formed by drawing or punching a plate.

일반적으로 복사기나 기타 전자기기의 케이싱은 박판에 가까운 얇은 판재를 프레스기로 형상을 포밍(Forming)하면 피가공재에 토션(Tortion)등이 발생한다.In general, a casing of a copier or other electronic device forms a torsional shape on a workpiece by forming a thin plate close to a thin plate by a press.

따라서 종래부터 드로잉 가공재에 발생된 토션을 보정하기 위하여 동일한 프레스기로 별도의 동일한 포밍작업을 통하여 드로잉 가공재의 평탄도를 보정하였는데 이는 불완전하였다. 특히 이같은 현상은 피가공 판재가 박판일수록 더욱 상기 현상이 더욱 심하였다.Accordingly, in order to correct the torsion generated in the drawing material, the flatness of the drawing material is corrected through the same forming process by the same press, which is incomplete. In particular, this phenomenon was more severe as the plate to be processed is thinner.

상술한 포밍 가공품에 발생된 토션을 보정하는 방법상의 문제점을 해결하기 위하여 본 발명이 제안되었는데 본 발명이 해결하고자 하는 기술적 과제는 1차로 드로잉 및 펀칭한 1차 포밍 가공품에 발생된 토션을 보정하여 포밍 가공품의 평탄도를 보정하는 볼트 도트 프레스 금형을 제공하는데 그 특징이 있는데 본 발명에 따른 볼트 도트 프레스 금형은 상부 다이와 하부 다이에 그 길이가 조절되는 다수개의 도트 볼트를 맞접하여 배치시키어 토션이 발생된 부분의 평탄도를 보정하도록하는 것에 본 발명의 목적이 있다.The present invention has been proposed in order to solve the problem of the method for correcting the torsion generated in the formed workpiece, the technical problem to be solved by the present invention is to correct the torsion generated in the primary forming workpiece drawn and punched first The present invention provides a bolt dot press mold for correcting flatness of a workpiece. The bolt dot press mold according to the present invention has a plurality of dot bolts whose lengths are adjusted to be disposed on the upper die and the lower die so as to generate a torsion. It is an object of the present invention to correct the flatness of the part.

도 1 는 본 발명에 따른 볼트도트 프레스 금형의 상하부 다이 분리 사시도1 is a perspective view of the upper and lower die separation of the bolt dot press mold according to the present invention

도 2 은 본 발명에 따른 볼트도트 프레스 금형의 정면도Figure 2 is a front view of the bolt dot press mold according to the present invention

도 3 은 본 발명에 따른 볼트도트 프레스 금형의 사용상태 정단면도.Figure 3 is a cross-sectional view of the state of use of the bolt dot press mold according to the present invention.

***도면의 주요부호에 대한 설명****** Explanation of major symbols in drawings ***

10 : 상부다이 20 : 하부다이10: upper die 20: lower die

11 : 상부 볼트 도트 21 : 하부 볼트 도트11: upper bolt dot 21: lower bolt dot

12 : 상부 너트 22 : 하부 너트12: upper nut 22: lower nut

11', 21' : 상하부 소직경 볼트 도트11 ', 21': Upper and lower small diameter bolt dots

w : 포밍 가공품w: forming workpiece

상기와 같은 목적을 달성하기 위한 도 1 는 본 발명에 따른 포밍 가공품의 평탄도 보정용 볼트-도트 프레스 금형의 상하부 다이 분리 사시도이고, 도 2 는 본 발명에 따른 포밍 가공품의 평탄도 보정용 볼트도트 프레스 금형의 정면도이다.1 is a top and bottom die separation perspective view of the flatness correction bolt-dot press mold for forming a workpiece according to the present invention, Figure 2 is a flatness correction bolt dot press mold for forming a workpiece according to the present invention Front view.

본 발명에 따른 평탄도 보정용 볼트 도트 프레스금형은 도 1 및 도 2 에 도시된 바와 같이 상부다이(10)와 하부다이(20)에 각각 다수개의 볼트 도트(11, 21)가 형성되되, 상부다이(10)의 상부 볼트 도트(11)와 하부다이(20)의 하부 볼트 도트(21)는 서로 대향하여 맞접하도록 형성된다.In the flatness correction bolt dot press mold according to the present invention, as shown in FIGS. 1 and 2, a plurality of bolt dots 11 and 21 are formed on the upper die 10 and the lower die 20, respectively. The upper bolt dot 11 of 10 and the lower bolt dot 21 of the lower die 20 are formed to abut against each other.

상기 상부 볼트도트(11)와 하부 볼트 도트(21)는 다양한 길이로 준비되어 가공품의 포밍 깊이에 따라 선택되도록 하고, 상기 상하부 볼트 도트(11, 21)의 각각은 상부다이(10)의 저면과 하부다이(20)의 상부면에 부착고정된 상하 너트(12, 22)에 의하여 치합 고정된다. 따라서 상기 상하 볼트도트(11, 21)는 상기 상하 너트(12, 22)에서 그 길이의 조절이 가능하게 구성한다.The upper bolt dot 11 and the lower bolt dot 21 is prepared in various lengths to be selected according to the forming depth of the workpiece, each of the upper and lower bolt dots (11, 21) and the bottom surface of the upper die (10) The upper and lower nuts 12 and 22 attached to the upper surface of the lower die 20 are fixed by engagement. Therefore, the upper and lower bolt dots (11, 21) is configured to be able to adjust the length of the upper and lower nuts (12, 22).

이와 같이 상부다이(10)와 하부다이(20)에 배치되는 볼트 도트(11, 21)는 포밍 가공품의 토션발생 위치에 따라 적절하게 배치되고, 피 가공품의 포밍 깊이에 따라 상대적으로 선택되어 배치되며, 특히 불균일한 토션이 발생된 부분에서는 스프링백 현상을 감안하여 상부 볼트 도트(11)와 하부 볼트 도트(21)의 길이를 조절한다.As such, the bolt dots 11 and 21 disposed on the upper die 10 and the lower die 20 are appropriately disposed according to the torsion generating position of the formed workpiece, and are selected and disposed relatively according to the forming depth of the workpiece. In particular, in the portion where the non-uniform torsion occurs, the length of the upper bolt dot 11 and the lower bolt dot 21 is adjusted in consideration of the springback phenomenon.

도 1 의 미설명 부호 11' 와 21'는 보다 작은 직경으로 된 소직경 상하부 볼트 도트인데, 이들 소직경 볼트 도트(11', 21')는 드로잉 가공부위 보다는 펀칭가공부분에 있어서 소폭(小幅)으로 된 가공품의 부분의 평탄도를 보정하기 위함인 것이다.Reference numerals 11 'and 21' in Fig. 1 are small diameter upper and lower bolt dots of smaller diameter, and these small diameter bolt dots 11 'and 21' are smaller in punching processing portions than in drawing processing portions. This is to correct the flatness of the part of the workpiece.

도 3 은 본 발명에 따른 평탄도 보정용 볼트 도트 프레스 금형의 사용상태를 정단면도로 도시한 것이다.3 is a front sectional view showing a state of use of the flatness correction bolt dot press mold according to the present invention.

도 3 에 도시된 바와 같이 본 발명에 따른 평탄도 보정용 볼트 도트 프레스 금형은 이미 1차로 포밍 가공된 가공품(w)을 상하부 다이(10, 20)의 상하부 볼트 도트(11, 21) 사이에서 프레싱되어 펴져 토션이 발생된 부분이 보정되는 것이다.As shown in FIG. 3, the flatness correction bolt dot press die according to the present invention is pressed between the upper and lower bolt dots 11 and 21 of the upper and lower dies 10 and 20 by forming the workpiece w that has already been primarily formed. The portion where the torsion is generated is corrected.

이상에서 살펴 본 바와 같이 종래의 경우 포밍 가공품에 토션 등이 발생한 경우 동일한 포밍 가공기에 의하여 동일한 가공을 재차(再次)하게 된다 하더라도 스프링 백현상 등에 의하여 불균일 변형의 제거가 불완전하나 본 발명에 따른 평탄도 보정용 볼트 도트 프레스 금형을 사용하면 거의 완벽하게 발생된 토션을 보정한다.As described above, in the case of torsion, etc., in the conventionally formed workpiece, even if the same processing is performed again by the same forming machine, the removal of the non-uniform deformation due to the spring back phenomenon is incomplete, but the flatness according to the present invention. Using a calibration bolt dot press mold compensates for almost perfectly generated torsion.

Claims (1)

포밍가공품의 평탄도를 보정하는 수단에 있어서, 상부다이(10)의 저면과 하부다이(20)의 상부면에 각각 복수개의 상부너트(12)와 하부너트(22)를 서로 대향하여 배치 형성하고, 상기 상부너트(12)와 하부너트(22) 각각에 봉상체의 상부볼트도트(11)와 하부볼트도트(21)의 일단부를 치합조립하여 양단부가 상호 맞접하도록 배치한 포밍 가공품의 평탄도 보정용 볼트-도트 프레스금형.In the means for correcting the flatness of the formed workpiece, a plurality of upper nuts 12 and lower nuts 22 are disposed to face each other on the bottom surface of the upper die 10 and the upper surface of the lower die 20, respectively. In order to correct the flatness of the formed workpiece formed by engaging one end of the upper bolt dot 11 and the lower bolt dot 21 of the rod-shaped body to each of the upper nut 12 and the lower nut 22 to be in contact with each other. Bolt-dot press mold.
KR1020020034078A 2002-06-18 2002-06-18 Bolt-Dot Press Mold for leveling KR20030096970A (en)

Priority Applications (1)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62134123A (en) * 1985-12-07 1987-06-17 Toupure Kk Correcting method for deformation of press formed part
JPH04313422A (en) * 1991-04-10 1992-11-05 Hitachi Metals Ltd Stress relief-device for free access floor
JPH05317968A (en) * 1992-05-13 1993-12-03 Daiwa Kogyo Kk Twist straightening device for press formed article
JPH05317969A (en) * 1992-05-18 1993-12-03 Toshiba Corp Panel plate straightening device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62134123A (en) * 1985-12-07 1987-06-17 Toupure Kk Correcting method for deformation of press formed part
JPH04313422A (en) * 1991-04-10 1992-11-05 Hitachi Metals Ltd Stress relief-device for free access floor
JPH05317968A (en) * 1992-05-13 1993-12-03 Daiwa Kogyo Kk Twist straightening device for press formed article
JPH05317969A (en) * 1992-05-18 1993-12-03 Toshiba Corp Panel plate straightening device

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