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WO1989002322A1 - Machine a border et a plier - Google Patents

Machine a border et a plier Download PDF

Info

Publication number
WO1989002322A1
WO1989002322A1 PCT/DE1988/000551 DE8800551W WO8902322A1 WO 1989002322 A1 WO1989002322 A1 WO 1989002322A1 DE 8800551 W DE8800551 W DE 8800551W WO 8902322 A1 WO8902322 A1 WO 8902322A1
Authority
WO
WIPO (PCT)
Prior art keywords
legs
pressure roller
shell
sheet
angle iron
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.)
Ceased
Application number
PCT/DE1988/000551
Other languages
German (de)
English (en)
Inventor
Albert Engert
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE8888907641T priority Critical patent/DE3862373D1/de
Publication of WO1989002322A1 publication Critical patent/WO1989002322A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
    • B21D5/042—With a rotational movement of the bending blade

Definitions

  • the invention relates to a bending and folding machine for bending metal sheets with two relatively counter ' ⁇ mutually movable legs and the opening side at least one angle iron and two spaced and mutually parallel operating levers associated with a sen about Winkelei ⁇ across movable platen in Connect.
  • Folding benches of the generic type are generally known and they are used to deform and create straight edges on initially essentially flat surfaces. They are used in all areas of sheet metal processing, in particular also in body construction for the repair and repair of rusted and / or accident-damaged vehicles. For such uses, it is generally necessary not to provide the sheet metal to be inserted into the body with an edge, but also to bend it and to adapt it to the shape of the body part to be replaced and then to insert it. This requires the sheet to be bent, which is in principle not feasible with the aid of folding banks. Bending benches are known per se, but they have to be procured and used independently of folding benches, which is due to space reasons as well as financial Considerations with regard to the acquisition costs are of considerable disadvantage.
  • the invention has set itself the task of creating a device by means of which both folding and bending work can be carried out.
  • one of the legs is curved inwards in the shape of a cylinder.
  • the term "cylindrical" means for the leg the shape of a sectoral cutout from a cylinder jacket.
  • the proposed device is suitable for both edging and bending sheet metal.
  • a sheet is used in a manner known per se at the edge between the two legs which can be moved relative to one another, of which the
  • the pressure roller is usually guided at a greater distance past the clamping device in such a way that the sheet metal is grasped and pressed against the cylindrical leg and is thereby curved.
  • the pressure roller grips the sheet metal in the outer regions, that is to say which are located away from the angle iron, and the curvature takes place starting from the clamping device along the leg.
  • the curvature of the leg is predetermined for one and the same device.
  • the shells used here must be flatter than the adjacent leg.
  • the radius of curvature can be influenced by the pressure rollers in the operating levers and thus at a distance from their pivot axis. Stepless adjustability is particularly recommended.
  • This device which is also proposed, also allows sheet metal to be edged and bent.
  • a sheet is clamped in a manner known per se at the edge between two legs that can be moved relatively relative to one another and bent over an angle iron fastened to them with the aid of a pressure roller that can be moved with two operating levers arranged relative to one another.
  • the angle iron forms the working edge and the pressure roller moves at a comparatively small distance from it.
  • the sheet is gripped and clamped together with a cylindrical shell by the legs, which
  • Pressure roller in comparison to the work process "folding" into a more external Position removed from the angle iron and fixed there so that it comes to rest on the sheet metal when the operating lever is pivoted, then moves towards the shell and is bent against it.
  • the pressure roller grips the sheet in the outer, i.e. areas distant from the angle iron and the curvature occurs starting from the clamping along the shell.
  • the desired uniform curvature of the sheet is obtained by the shell forming the base.
  • zy-Imd ⁇ sche shell is to be understood to mean all those curved surfaces which are of the same construction in one, the axial direction , in the clamped state the axis of the shell runs parallel to the angle iron.
  • the device according to the invention provides a remedy here, since it allows the manufacture of repair sheets with a uniform curvature over a certain length (width) and / or the manufacture of edges.
  • the device itself is wear-free, robust and, due to its universal use, inexpensive to buy.
  • Another method that is completely independent of this consists in inserting and fixing one and the same shell with the same curvature over the entire length in height-different positions between the legs, and thereby influencing the curvature of the sheet in the clamping area.
  • the plane sheet that runs approximately symmetrically between the two legs in the starting position is curved all the more, i.e. the steeper the deeper the shell is inserted between the legs. If the bowl is pushed more outwards, the curvature of the sheet will be flatter.
  • a displacement of the shell does not necessarily result in a change in the position of the pressure valve, since it is sufficient to lie against the sheet and there is no need for a direct movement along or parallel to the shell.
  • the sheet is through the
  • a bolt which engages through both legs in the center in the azimuthal direction and is equipped with a screwing device, so that both legs can be pressed against one another in the manner of a screw clamp are.
  • the use of a bolt can not only serve to press the two legs towards one another, but can also contribute to the formation of the clamping device in which a bolt is guided outwards through the cylindrical leg and a connecting element is connected to it Bar is arranged, which when the screwing device is actuated in the manner of a screw clamp against the sheet metal therein and possibly additionally against the shell located there and can thereby clamp. It is a simple implementation of a clamping device.
  • the two legs 1, 2 are connected to one another via an axis of rotation 3 and can therefore be moved relative to one another.
  • an angle iron 4, 5 is fastened on the opening side, between which a gap is formed, the clear width of which can be changed and adjusted by moving the legs 1, 2.
  • the device described so far is symmetrical with respect to a plane extending through the axis of rotation 3.
  • an operating lever 6 is fastened via a fulcrum 7, which is essentially on the
  • Angle iron 4, 5 runs to and beyond it, is provided at the end with a handle 8 and is connected to a pressure roller 9 which runs perpendicular to the plane of the drawing and is connected at its opposite end to a further operating lever which cannot be seen here.
  • the control lever 6 By operating the control lever 6 there is a pivoting in the direction of the arrow.
  • the pressure roller 9 can be moved in parallel in its position due to corresponding devices attached to the operating lever 6. For the bending process the pressure roller is in the upper i.e. fulcrum position and becomes
  • both a shell 10 and an initially flat plate 11 are inserted and clamped at the end.
  • the operating lever is turned over, the pressure roller 9 rests on sheet metal 11 and is pressed against the shell 11 when the operating lever continues to move and takes on its shape. It is entirely sufficient if the plate 11 only through the edge of the pressure roller
  • the operating lever 6 By bending the plate 11, the operating lever 6 is pivoted back into the starting position shown in the drawing.
  • the pressing of the two legs 1, 2 against one another takes place via a bolt 12 penetrating both, which is provided on one side with a stop surface 13 and at the opposite end with a screw 14, so that the two legs 1 , 2 can be pressed against one another in the manner of a screw clamp.
  • the device just shown and described in its function can be converted in a manner known per se for carrying out bending work by pressing the pressure roller 9 onto the operating lever 6 in the direction of the angle iron

Landscapes

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

Abstract

Dans un dispositif permettant de border et de plier des tôles, onpeut amener un rouleau compresseur (9), fixé à des leviers de commande (6), dans au moins une position supplémentaire. La tôle (11), avec une enveloppe cylindrique (10), est fixée entre les bords (1, 2) sur la surface externe d'un bord courbé (1, 2), de sorte que lorsque l'on actionne le levier de commande (6), la tôle (11) vient reposer contre l'enveloppe (10) ou le bord courbé (1, 2).
PCT/DE1988/000551 1987-09-08 1988-09-08 Machine a border et a plier Ceased WO1989002322A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8888907641T DE3862373D1 (de) 1987-09-08 1988-09-08 Biege- und abkantbank.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3750014.8 1987-09-08
DE19873730014 DE3730014A1 (de) 1987-09-08 1987-09-08 Biege- und abkantbank

Publications (1)

Publication Number Publication Date
WO1989002322A1 true WO1989002322A1 (fr) 1989-03-23

Family

ID=6335463

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1988/000551 Ceased WO1989002322A1 (fr) 1987-09-08 1988-09-08 Machine a border et a plier

Country Status (3)

Country Link
EP (1) EP0332674B1 (fr)
DE (2) DE3730014A1 (fr)
WO (1) WO1989002322A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1442810A (en) * 1920-07-21 1923-01-23 Krump Nic Bending brake
US3147791A (en) * 1961-05-31 1964-09-08 Lyf Alum Inc Brake for bending sheet metal
DE2407191A1 (de) * 1973-03-01 1974-09-05 Tapco Products Co Abkantvorrichtung fuer bleche und aehnliches blattmaterial
DE2614177A1 (de) * 1975-04-16 1976-10-28 Andre Lamendour Vorrichtung zum biegen von blechen
US4173137A (en) * 1976-06-24 1979-11-06 Heinz Metje Bending fixture for offset plates
US4282735A (en) * 1979-04-02 1981-08-11 Van Mark Products Corporation Brake for sheet metal or the like

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE303138C (fr) *

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1442810A (en) * 1920-07-21 1923-01-23 Krump Nic Bending brake
US3147791A (en) * 1961-05-31 1964-09-08 Lyf Alum Inc Brake for bending sheet metal
DE2407191A1 (de) * 1973-03-01 1974-09-05 Tapco Products Co Abkantvorrichtung fuer bleche und aehnliches blattmaterial
DE2614177A1 (de) * 1975-04-16 1976-10-28 Andre Lamendour Vorrichtung zum biegen von blechen
US4173137A (en) * 1976-06-24 1979-11-06 Heinz Metje Bending fixture for offset plates
US4282735A (en) * 1979-04-02 1981-08-11 Van Mark Products Corporation Brake for sheet metal or the like

Also Published As

Publication number Publication date
DE3730014A1 (de) 1989-03-16
DE3862373D1 (de) 1991-05-16
EP0332674A1 (fr) 1989-09-20
EP0332674B1 (fr) 1991-04-10

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