FR2257364A1 - Appts for bending a steel plate - has formations of upper and lower punches hydraulically operated either side of plate - Google Patents

Appts for bending a steel plate - has formations of upper and lower punches hydraulically operated either side of plate

Info

Publication number
FR2257364A1
FR2257364A1 FR7400918A FR7400918A FR2257364A1 FR 2257364 A1 FR2257364 A1 FR 2257364A1 FR 7400918 A FR7400918 A FR 7400918A FR 7400918 A FR7400918 A FR 7400918A FR 2257364 A1 FR2257364 A1 FR 2257364A1
Authority
FR
France
Prior art keywords
plate
rows
punches
steel plate
bending
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7400918A
Other languages
French (fr)
Other versions
FR2257364B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to FR7400918A priority Critical patent/FR2257364A1/en
Publication of FR2257364A1 publication Critical patent/FR2257364A1/en
Application granted granted Critical
Publication of FR2257364B1 publication Critical patent/FR2257364B1/fr
Granted legal-status Critical Current

Links

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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/20—Bending sheet metal, not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The apparatus is for bending a steel plate into any configuration having a compound curved surface. An upper punch group consists of at least three rows of punches aligning widthwise of the plate, disposed above it and adapted to form a curved surface for shaping the plate. A lower punch group consists of at least three rows of punches aligning widthwise of the steel plate and under it. The upper punch group is disposed so that the punches are individually adjustable in height, and the respective punch rows in the rows of punches can be arbitrarily preset in position w.r.t. the relative heights of the rows and the distances between the rows, as is the lower punch group.
FR7400918A 1974-01-11 1974-01-11 Appts for bending a steel plate - has formations of upper and lower punches hydraulically operated either side of plate Granted FR2257364A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7400918A FR2257364A1 (en) 1974-01-11 1974-01-11 Appts for bending a steel plate - has formations of upper and lower punches hydraulically operated either side of plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7400918A FR2257364A1 (en) 1974-01-11 1974-01-11 Appts for bending a steel plate - has formations of upper and lower punches hydraulically operated either side of plate

Publications (2)

Publication Number Publication Date
FR2257364A1 true FR2257364A1 (en) 1975-08-08
FR2257364B1 FR2257364B1 (en) 1979-01-26

Family

ID=9133364

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7400918A Granted FR2257364A1 (en) 1974-01-11 1974-01-11 Appts for bending a steel plate - has formations of upper and lower punches hydraulically operated either side of plate

Country Status (1)

Country Link
FR (1) FR2257364A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124514A1 (en) * 1981-06-23 1983-01-05 Blohm + Voss Ag, 2000 Hamburg Process for shaping ships' plates
FR2577152A1 (en) * 1985-01-24 1986-08-14 Messerschmitt Boelkow Blohm DEVICE FOR FASTENING AN ELASTICALLY PLASTICALLY DEFORMABLE CONSTRUCTION ELEMENT
EP3009208A4 (en) * 2013-06-12 2017-04-19 Mitsubishi Heavy Industries, Ltd. Device for maintaining twist in panel-shaped workpieces, method for maintaining twist, and method for creating twist
CN113020340A (en) * 2021-03-01 2021-06-25 何大顺 Corrosion-resistant galvanized metal wire casing shaping processing machine people that bends

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124514A1 (en) * 1981-06-23 1983-01-05 Blohm + Voss Ag, 2000 Hamburg Process for shaping ships' plates
FR2577152A1 (en) * 1985-01-24 1986-08-14 Messerschmitt Boelkow Blohm DEVICE FOR FASTENING AN ELASTICALLY PLASTICALLY DEFORMABLE CONSTRUCTION ELEMENT
EP3009208A4 (en) * 2013-06-12 2017-04-19 Mitsubishi Heavy Industries, Ltd. Device for maintaining twist in panel-shaped workpieces, method for maintaining twist, and method for creating twist
US9789526B2 (en) 2013-06-12 2017-10-17 Mitsubishi Heavy Industries, Ltd. Plate-like-workpiece twisting and retaining apparatus, plate-like-workpiece twisting and retaining method, and plate-like-workpiece twisting and shaping method
CN113020340A (en) * 2021-03-01 2021-06-25 何大顺 Corrosion-resistant galvanized metal wire casing shaping processing machine people that bends

Also Published As

Publication number Publication date
FR2257364B1 (en) 1979-01-26

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Legal Events

Date Code Title Description
ST Notification of lapse