DE1452775C

DE1452775C - Swivel bending machine

Info

Publication number: DE1452775C
Authority: DE
Inventors: Der Anmelder Ist
Original assignee: Marsh, Walter Gamble, Detroit, Mich. (V.St.A.)
Publication date: 1972-09-14

Description

13 liegende Keile 28 befestigt sind. Die Schiene 27 ist lose oberhalb der Widerlagerschiene angebracht und kann längs dieser bewegt werden. Dazu ist ein Hebel 29 vorgesehen, welcher an einem Block der Schiene 27 angelenkt ist. Das untere Ende des Hebels 29 ist mittels eines Gelenks 31 mit dem unteren Schenkel 14 des Gliedes 13 verbunden. An den oberen Schenkeln 15 der Glieder 13 sind Federplatten 32 angebracht, welche unter die Winkelstücke 33 greifen, die ihrerseits an der Widerlagerschiene 23 befestigt sind und das Bestreben haben, die Klemmplatte 27 zu lüften, wenn die Teile 28 mit Bezug auf Fig. 1 nach rechts verschoben werden und dabei den auf die Widerlagerschiene 23 wirkenden Klemmdruck aufheben;.; h? ·.. Soll ein Stück Blech gebogen werden, so wird der Hebel 29 so verschwenkt, daß der Klemmdruck aufgehoben wird und die Klemmplatte 27 sich abhebt. Das Blech wird dann zwischen die Unterwange 16 und die Widerlagerschiene 23 eingeschoben, und der Hebel 29 wird so betätigt, daß das Blech eingeklemmt wird.13 horizontal wedges 28 are attached. The rail 27 is loosely attached above the abutment rail and can be moved along this. For this purpose, a lever 29 is provided which is attached to a block of the Rail 27 is hinged. The lower end of the lever 29 is by means of a hinge 31 with the lower Leg 14 of the link 13 connected. On the upper legs 15 of the links 13 spring plates 32 are attached, which under the angle pieces 33 grab, which in turn are attached to the abutment rail 23 and strive to the clamping plate 27 to ventilate when the parts 28 are shifted to the right with reference to FIG. 1 and thereby cancel the clamping pressure acting on the abutment rail 23; H? · .. If a piece of sheet metal is to be bent, the lever 29 is pivoted so that the clamping pressure is released and the clamping plate 27 stands out. The sheet metal is then placed between the lower cheek 16 and the abutment rail 23 is pushed in, and the lever 29 is operated so that the sheet metal is clamped will.

Danach wird mittels der Handgriffe 35 die Biegewange 17 nach oben verschwenkt und das Blech bis zu der gewünschten Abwinkelung (Fig..3) gebogen.Then the bending cheek 17 is pivoted upwards by means of the handles 35 and the sheet metal up to bent to the desired angle (Fig..3).

Dank der Ausbildung des besonderen Scharniers an der Unterwange 16 und der Biegewange 17 wird eine genaue Biegung des Bleches erzielt, ohne daß die Oberfläche einer etwaigen Beschichtung des Bleches Schaden leidet. '■-:..]·,■■■■ Thanks to the design of the special hinge on the lower cheek 16 and the bending cheek 17, a precise bending of the sheet is achieved without the surface of any coating on the sheet being damaged. '■ -: ..] ·, ■■■■

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 claims were superfluous to achieve alignment along the bending edge, since the curling of the

1. Swivel bending machine for sheet metal, with vvel-Joint is self-responsible and through the Übercher the sheet metal between a solid lower cheek go to the working surfaces of the hinge tabs and one of the work surfaces of the corresponding cheeks that can be clamped against the lower cheek is one Upper beam is clamped and by Schwcn- inevitable guidance of the sheet during the A bending cheek around a bending process in the upper cheek is guaranteed and other deformations that are not fastened Biegeleisle is bent, whereby the gene does not occur, so that a perfectly clean Bending beam by means of an interlocking and aligned bending edge without technical Hufs hinge tabs existing hinge joint is achieved.

binding is attached to the lower beam. An advantageous embodiment of the swivel

characterized by the fact that the turning machine consists of the two cheeks

axis of the bending beam in a manner known per se from preferably drawn profiles with one-sided

below the working surface of the lower beam (16) open cross-section, expediently O-profiles, bc-

is arranged that the hinge 15 are.

Connection extends over the entire length and the invention is hereinafter referred to by reference

that the hinge tabs (18, 19) are explained in more detail with working on the drawings. In the

surfaces (18a, 19 «) are given away, which is shown in a drawing

Level with the working surfaces of the lower beam Fig. 1 the swivel bending according to the invention

(16) or bending beam (17) lie and without a machine in a perspective view,

Transition to this interruption. Fig. 2 is a plan view of the hinge joint

2. swivel bending machine according to claim 1, connection of the swivel bending machine. Fig. 1, characterized in that the two cheeks Fig. 3 is a partial sectional view through the hinge (16, 17) from preferably drawn profiles with an articulated connection of the folding machine Cross-section open on one side, expediently 25 Fig. 1.

U-profiles exist. The swivel bending machine according to Fig.l is resting two U-shaped rails 10, 11, which are made of drawn aluminum, and pointing in the longitudinal direction

The invention relates to a folding machine, the machine arranged at a distance from one another

for sheet metal, in which the sheet metal is between a 30 C-shaped link 13 that rests on the rails 10

fixed lower beam and one against the lower beam and 11 are attached. Each of the links 13 has one

tensionable upper beam is clamped and by lower leg 14, which is screwed to the

Pivoting a bending beam around one in the upper rails 10, 11 is attached, and an upper one

cheek attached bending bar is bent, with leg 15, which extends over the lower leg 14

the bending beam extends by means of an interlocking 35.

Hinge tabs existing hinge joint connection A lower beam 16 in the form of a drawn

dung is attached to the lower cheek. Aluminum rail with U-profile is on the lower one

Known devices usually have legs 14 attached, and a bending cheek 17, evenly separated joint parts that are attached to the bending cheeks. U-shaped, made of drawn aluminum is bolted on. Apart from the difficult 40 hinge-like attached to the Unler cheek 16,
As FIG. 2 shows, the lower beam 16 and the bending beams are caused by the manufacture of the machine bending beam 17 with hinge tabs 18 and 19, respectively, with an exact longitudinal alignment that alternates at the longitudinal edges usually cannot be reached, also prepares those who are mutually engaging. The training is to achieve a precise sharp corner 45 such that the work surfaces 18 "or 19" of the difficulties. In particular, the measures that the hinge tabs must be taken in a plane with the working surfaces of the lower beam 16 and the bending beam 17 are complex and time-consuming. Above it and pass over into it without interruption, conventional hinge bodies can also be used to avoid impairment of the sheet to be bent with holes 20, 2t, which are formed when the cheeks 16, 17 are pulled. The sheet metal will lobes 18, 19 in alignment with one another between the cheeks and when the hinge bodies and the circumferential lines of the hinge bodies are inserted into one another. A hinge is exposed to deformations that prevent the pin 22 from being precisely bent, extending through the openings 22, 21. The object of the invention is therefore over the entire length. The basis of the bending cheek 17 is to make a swivel bending machine available along an exact axis on the lower cheek 16, in which one is articulated in a less expensive manner.

Exact bending line over the entire length of the bending with the web member 24 of the lower beam 16 arbeilet

edge is guaranteed. an abutment section 23 together, the above

The solution according to the invention is that the lower cheek 16 is arranged so that with her the axis of rotation of the bending beam in a per se known 60 help a piece of sheet metal against the surface of the web-way below the working surface of the lower cheek partially 24 can be, as it is arranged in Fig. 3 vcrange is that the hinge joint Dicr <abutment section 23 has a extension extends over the entire length and that the sharp edge 25 and .V resting on the sheet metal Hinge tabs are provided with working surfaces, an inclined surface 26 leading away from the edge 25. The one on the same level as the work surfaces of the lower 65 Ks is a preparation for the optional Fcslwange or bending beam and are provided without unclamping the abutment rail 23. the refraction merge into this. Device consists of a clamping plate 27 on . ν In this way, all dimensions are below the upper legs 15 of the limbs