EP1287918A1 - Method and device for forming a corner limited on three sides from a flat sheet material - Google Patents

Abstract

The procedure for forming a corner section bounded on three sides entails in one of its stages forming the side walls of the component in the transition region and in the corner region(10) over its entire height(206) to bear upon the form faces(36) of the work tool(16) directly adjacent to the corner region to be manufactured. An Independent claim is included for a plant for forming a corner section bounded on three sides on a flat plate component in which the height(212) of the form faces of the tool is the same or greater than the height(206) of the side walls of the component or height(213) of the projection(194) in the corner region.

Description

The invention relates to a method for forming a corner area from a flat surface Plate, in particular sheet metal plate, as described in the preamble of claim 1 and a system for forming a three-sided corner area on a component, such as described in the preamble of claim 7.

It preferably relates to a system with an adjusting device, adapted to one Box-like component that has an adjustment device for setting an advanced one or retracted position of at least one tool or roller assembly for an exact adjustment of the tool or the roller arrangement in accordance with the thickness of the box-like component. This ensures high accuracy of the Dimensions in the corner area of the finished box-like component reached.

In housings for holding electronic instruments, communication devices, Switchboards and the like, the housing is made of a flat plate part or a plate made. This type of housing has an opening in the main body and a lid that can be positioned on the opening. The lid can be opened and closed educated. The lid is a box-like component made of a plate, which is a plate processing is produced.

If such a cover or the like is to be provided on the metal housing, it is based on to transform a plate into a box-shaped component. For this, square-shaped are trained Recesses from a rectangular, plate-like normal metal plate in the four corners. Then the plate is folded along the four side edges to make the to form four side walls. Furthermore, the corresponding end parts of the opposite Side walls welded together to form a corner area. These corner areas are finished by means of a grinding machine etc.

Known types of manufacture for box-like components require the following steps:

Cutting away the material parts of the plate in the four corners thereof; Fold the panel along the four side edges to form the side walls; Welding the corresponding ones together End portions of the adjacent side walls to form a corner area and finishing the corner area with a grinding machine or the like.

Therefore, the box-like components through a chain of such deformation processes provided with these corner areas. This causes inconvenience because such a large number of work steps the manufacture of the corner areas in such a box-shaped Component complicates and thereby increases costs.

From the documents - DE 40 09 466 C2 and DE 196 14 517 A - is a corner molding machine and a method for the production of box-shaped components is known. At this A device for bending and profiling corners is a plate-shaped workpiece a role as a bending tool so deformed that a three-sided corner of a surface is formed. To hold the workpiece down on the tool, one is held in its Basic form of rectangular hold-down is used. The plate-like fixed in this way Workpiece is then with an hourglass-shaped roller, which is used as a rolling tool serves, deformed. The hold-down device and the tool are the ones to be formed Sheet receiving plane offset against each other. This means that the vertical side surfaces the mold plate also in its sheet-metal clamping position of the hold-down device to be deformed protrudes over the side surfaces of the same extending parallel to it. With the hold-down was the complete coverage of the corner area by the hold-down however, the material in this area was prevented from being stretched, causing cracks in the corner area can arise from both aesthetic and security Reasons are not acceptable.

According to the other DE 196 14 517 A it was provided that the opposite vertical side surfaces of the tool and the hold-down device to each other by a horizontal dimension are offset and that of the hold-down device is also beveled. The disadvantage is here that between the roller causing the deformation of the component and the hold-down device the component is not held in place and move in this direction during the rolling process can, so that there are distortions in the area of the flat plate part of a box-like Component can come.

The present invention has for its object to provide a method for producing Corners in box-shaped components that are made from flat panels create which with the least possible effort for post-processing an exact manufacture of corner areas for box-like components with different external dimensions and thicknesses and a plant for the production of such box-shaped To create components with the pre-formed on flat panels or on the edge area Panel parts of differently designed corner areas can be produced.

This object of the invention is achieved by the method according to claim 1 and the system solved according to claim 7 each independently.

The method according to claim 1 advantageously allows truncation of the supernatant without burrs between the end edges of the side walls of the component forming the corner area. The fact that the mutually movable cutting elements in the same plane as the Alignment surface are arranged, even with tolerances in the manufacture of the side walls Folding an offset in the two side walls forming the corner area in the height direction compensable when trimming the excess.

Advantageous measures also describe claims 2 to 6 for achieving qualitatively high quality components.

It is advantageous to design a system according to claim 7, since the Connect cutting elements exactly to the actual course of the side edges and on the transition area of the supernatants can be adjusted without a manual Repositioning is required.

The invention is described below with reference to the exemplary embodiments shown in the drawings described in more detail.

Fig. 1

eine Rollenanordnung und ein Werkzeug entsprechend einer möglichen Ausführungsform der vorliegenden Erfindung in Draufsicht, vereinfacht und vergrößert;

Fig. 2

einen wesentlichen Teil der Eckenformeinrichtung in Seitenansicht;

Fig. 3

einen wesentlichen Teil der Eckenformeinrichtung und einen schachtelförmigen Bauteil in Draufsicht;

Fig. 4

ein feststehendes und eine bewegliches Schneideelement in schaubildlicher Darstellung, schematisch und vergrößert;

Fig. 5

eine Abkantmaschine in Stirnansicht;

Fig. 6

die Abkantmaschine nach Fig. 5 in Seitenansicht, geschnitten;

Fig. 7

eine Vorbereitung der Eckbereiche einer Platte in schematischer Darstellung;

Fig. 8

die relative Lage zwischen der Rollenanordnung und dem Werkzeug vor der Herstellung der Eckbereiche in Seitenansicht;

Fig. 9

die relative Lage zwischen der Rollenanordnung und dem Werkzeug während der Herstellung des Eckbereiches in Seitenansicht;

Fig. 10

die relative Lage zwischen der Rollenanordnung und dem Werkzeug nach der Herstellung des Eckbereiches;

Fig. 11

die relative Lage zwischen der Schneidplatte und dem Werkzeug während der Entfernung der Ausschweifung (des Überstandes) im Eckbereich;

Fig. 12

einen wesentlichen Bereich des schachtelartigen Bauteiles, bevor die Eckbereiche des schachtelartigen Bauteils hergestellt sind, in einer vergrößerten, schaubildlichen Darstellung;

Fig. 13

zeigt einen wesentlichen Teil des schachtelartigen Bauteils, nachdem die Eckbereiche des schachtelartigen Bauteiles hergestellt sind, in einer vergrößerten schaubildlichen Darstellung;

Fig. 14

zeigt einen wesentlichen Teil des schachtelartigen Bauteiles, nachdem die Ausschweifungen (Überstände) im Eckbereich weggeschnitten sind, in einer vergrößerten schaubildlichen Darstellung;

Fig. 15

den schachtelförmigen Bauteil mit einem fertiggestellten Eckbereich in perspektivischer Darstellung;

Fig. 16

eine Ausführungsvariante der vorliegenden Erfindung der Rollenanordnung und ein Werkzeug in Draufsicht, in schematischer und vergrößerter Darstellung;

Fig. 17

eine weitere Ausführungsvariante der Rollenanordnung in Stirnansicht und schematischer Darstellung;

Fig. 18

die Rollenanordnung nach Fig. 17 im Schnitt gemäß den Linien 18 - 18 in Fig. 17;

Fig. 19

eine weitere Ausführungsvariante des Werkzeuges in schaubildlicher Darstellung;

Fig. 20

einen wesentlichen Teil einer weiteren Ausführungsform des Werkzeuges in schaubildlicher, vergrößerter Darstellung,

Fig. 21a

einen Nutbereich des Werkzeuges im Schnitt, schematisch;

Fig. 21b

einen Nutbereich des Werkzeuges im Schnitt, schematisch;

Fig. 22

eine weitere Ausbildung einer Eckenformeinrichtung in Ansicht;

Fig. 23

die Eckenformeinrichtung nach Fig. 22 in Draufsicht, teilweise geschnitten;

Fig. 24

eine Detaildarstellung der Eckenformeinrichtung in Draufsicht;

Fig. 25

die Eckenformeinrichtung, geschnitten gemäß den Linien XXV-XXV in Fig. 24;

Fig. 26

eine weitere Ausbildung einer erfindungsgemäßen Schneidevorrichtung, geschnitten gemäß den Linien XXVI-XXVI in Fig. 27;

Fig. 27

die Schneidevorrichtung nach Fig. 26 in Draufsicht, in schematischer Darstellung;

Fig. 28

eine andere Ausführung einer erfindungsgemäßen Schneidevorrichtung in schematischer Darstellung;

Fig. 29

eine weitere Ausführung einer Rollenanordnung mit der Niederhaltevorrichtung die erfindungsgemäße Eckenformeinrichtung, geschnitten.

Show it:

Fig. 1

a roller assembly and a tool according to a possible embodiment of the present invention in plan view, simplified and enlarged;

Fig. 2

an essential part of the corner molding device in side view;

Fig. 3

an essential part of the corner molding device and a box-shaped component in plan view;

Fig. 4

a fixed and a movable cutting element in a diagrammatic representation, schematic and enlarged;

Fig. 5

a folding machine in front view;

Fig. 6

5 in side view, cut;

Fig. 7

a preparation of the corner areas of a plate in a schematic representation;

Fig. 8

the relative position between the roller arrangement and the tool before the production of the corner areas in side view;

Fig. 9

the relative position between the roller assembly and the tool during the manufacture of the corner area in side view;

Fig. 10

the relative position between the roller arrangement and the tool after the corner area has been produced;

Fig. 11

the relative position between the insert and the tool during removal of the excess (excess) in the corner area;

Fig. 12

an essential area of the box-like component, before the corner areas of the box-like component are produced, in an enlarged, diagrammatic representation;

Fig. 13

shows an essential part of the box-like component after the corner regions of the box-like component have been produced, in an enlarged diagrammatic representation;

Fig. 14

shows an essential part of the box-like component, after the excesses (protrusions) have been cut away in the corner area, in an enlarged diagram;

Fig. 15

the box-shaped component with a completed corner area in perspective;

Fig. 16

an embodiment of the present invention of the roller assembly and a tool in plan view, in a schematic and enlarged view;

Fig. 17

a further embodiment of the roller arrangement in front view and schematic representation;

Fig. 18

17 in section along lines 18-18 in FIG. 17;

Fig. 19

a further embodiment of the tool in a diagram;

Fig. 20

an essential part of a further embodiment of the tool in a diagrammatic, enlarged representation,

Fig. 21a

a groove area of the tool in section, schematically;

Fig. 21b

a groove area of the tool in section, schematically;

Fig. 22

a further embodiment of a corner molding device in view;

Fig. 23

22 in plan view, partially sectioned;

Fig. 24

a detailed view of the corner molding device in plan view;

Fig. 25

the corner former, cut along lines XXV-XXV in Fig. 24;

Fig. 26

a further embodiment of a cutting device according to the invention, cut according to lines XXVI-XXVI in Fig. 27;

Fig. 27

the cutting device of Figure 26 in plan view, in a schematic representation.

Fig. 28

another embodiment of a cutting device according to the invention in a schematic representation;

Fig. 29

a further embodiment of a roller arrangement with the hold-down device, the corner molding device according to the invention, cut.

As an introduction, it should be noted that in the differently described embodiments the same parts are provided with the same reference symbols or the same component designations, the disclosures contained throughout the description being analogously the same Parts with the same reference numerals or the same component names are transferred can. The location information selected in the description, e.g. up down, laterally, etc. related to the figure immediately described and shown and are in the event of a change in position, to be transferred accordingly to the new position. Furthermore, also Individual features or combinations of features from the different shown and described Exemplary embodiments for themselves, inventive or inventive Represent solutions.

1 to 15 show an embodiment of the present invention.

In FIGS. 2 and 3, reference number 2 shows a box-like component; and 4 one Corner molding device.

As shown in Fig. 7, the box-like member 2 is made of a plate S which is deformable by rolling, such as a steel plate, an aluminum plate, a stainless steel plate, a copper plate or the like. As shown in Fig. 15, a flat plate member 6 is the Plate S folded along the four side edges to form four side walls 8. Thereby the plate S is formed into the box-shaped component 2.

2, the corner molding device 4 is equipped with a worktop 14. The worktop 14 is supported in the horizontal direction by a frame 12. The corner molding device 4 is also with a substantially polygonal plate-like Tool 16 equipped. The tool 16 is fixed on the worktop 14. The tool 16 according to the present embodiment and is square Plate shape. The tool 16 is with a centering pin 24 on a bearing block 18 of the worktop 14 attached, pins 20 are inserted into the bearing block 18 and additional intermediate bearings 22 are arranged in between.

Furthermore, an adjusting device 26 is arranged on the worktop 14. The adjustment device 26 determined a position where one of the two, namely the tool 16 or the roller assembly 42 described below is mounted. As shown in Fig. 1, the adjusting device 26 comprises the intermediate bearings 22 and manually adjustable threaded spindles 28. The threaded spindles 28 are between the worktop 14 and the intermediate layers 22 arranged. The threaded spindles 28 can be rotated manually, creating a advanced or withdrawn distance of the tool 16 can be set (see arrow in Fig. 1).

The tool 16 has a substantially square shape with horizontal top and Undersides 30, 32 and four side surfaces 34. These four side surfaces 34 are connected with the top and bottom 30, 32.

The tool 16 has a shaped surface 36 for producing the corner region 10 Corner of the box-shaped component 2 is formed. The molding surface is through the top 30 in a corner of the tool 16 and two side surfaces 34 which are connected to this upper side 30 communicate, educated. The tool is also provided with a cutting element 38 for cutting away debauchery 66 or a protrusion (see Fig. 13) from the final Shaped end portion of the box-shaped component 2 provided. The cutting element 38 is arranged in a region of a corner on an underside 32 of the tool 16 in which the two side surfaces 34 which are connected to the aforementioned bottom 32. A Drive arrangement 40 for the cutting element 38 moves the cutting element 38 in the area the bottom 22 to the side wall 8 of the box-like component 2 or from this path.

The corner shaping device 4 is furthermore of an essentially opposite circular cone-like shape Roller assembly 42 provided. The roller assembly 42 is along the two Moves side surfaces 34, which form the molding surface 36 at a corner of the tool 16. The roller arrangement 42 essentially forms a double circle cone function, in which connects a pair of circular cone parts 44 at their tips (vertices) are. A drive device 46 for the roller assembly 42 moves it along the two side surfaces 34 which form the molding surface 36.

For this purpose, the roller arrangement 42 is provided with two pressure surfaces 48. If the role arrangement 42 is then moved along the two side surfaces 34 which form the molding surface 36 the pressure surfaces 48 deform the excesses 66 or the protrusions of the box-shaped one Component 2 in a corner thereof in such a way that the excesses or the overhang 66 in close contact with the two side surfaces 34 and the formation a corner area 10 occur. The pressure surfaces 48 are formed with a circular conical surface, which are inclined in opposite directions, but continuously towards each other on the Stretch tip. The roller assembly 42 according to the present embodiment is arranged and designed so that it is in relation to the two side surfaces 34 can not twist.

The corner molding device 4 is further provided with a support plate 50. The support plate 50 can go down to the bottom 32 in a corner of the tool 16 be adjusted. As shown in FIGS. 2 to 4, the support plate 50 has a top and bottom Underside 52, 54 and two inner surfaces 56 are provided, which are opposite to the aforementioned side surfaces 34 are located. An adjustment drive 58 for the support plate 50 moves the support plate 50 towards and away from the side surfaces 34 of the tool 16.

The support plate 50 has a cutting edge 60 which is in an area in which the underside 54 merges into the inner surface 56, is arranged. When the cutting edge 60 is in the direction the side surfaces 34 of the tool 16 is moved, hold the tool 16 and Support plate 50, the side wall 8 of the box-like component 2. Accordingly, the cuts Cutting edge 60, the excess 66 or the protrusion of the fully formed corner area 10 of the box-like component 2 in connection with the cutting element 38 when the Drive arrangement 40 for the cutting element 38, the cutting element 38 along the underside 32 of the tool 16 moves.

Reference numeral 62 designates a hold-down device which forms the flat plate part 6 holds the box-like component 2 from an upper side. Reference numeral 64 denotes a drive mechanism for the hold-down device 62.

The process sequence of the device explained above is now described below.

If the box-shaped component 2 with a corner area 10 using the corner molding device 4 is produced, the pre-processing is already in progress, as shown in FIG. 7, completed. In detail, the flat plate part 6 becomes the square plate-shaped one Plate S with good roll forming properties folded along the four side edges, see above that four side walls 8 are formed. The box-like component 2 has the excesses (Protrusion) 66 made in each corner.

As shown in Figs. 5 and 6, the above pretreatment can be done with a press brake 68 are executed. The press brake 68 is with a die 72 and a Stamp 74 provided. The die 72 is fixed on a main body 70. The embossing stamp 74 is moved in the direction of the die 72.

das Gesenk 72, welches den Nutbereich 76 mit den V-förmigen Querschnitt und den Formbereich 78 im Bereich der beiden Enden aufweist und den Prägestempel 74, der den Vorsprung 80 mit den V-förmigen Querschnitt aufweist. Wie in Fig. 12 dargestellt, formen die Formbereiche 78 des Gesenkes 72 die Ausschweifungen 66 bzw. die Überstände in jedem Eck des schachtelförmigen Bauteils 2, wo die entsprechenden Enden zweier benachbarter Seitenwände aneinanderstoßen.

The die 72 is produced with a V-shaped groove area 76, in which the height “H” corresponds to the height of the side wall 8 of the box-like component 2. The groove region 76 has a shaped region 78 which is provided in the region of both ends, thus in regions which correspond to the corner regions 10 of the box-like component 2. The molding area 78 has a height "h1" that is greater than the height "h". The stamping die 74 is provided with a projection 80 with a V-shaped cross section, which corresponds to the groove region 76. A drive device 82 drives the stamping die for adjustment in the direction of the die 72. As shown in Fig. 7, the press brake 78 enables the flat plate portion 6 of the plate S to be folded along its four side edges to thereby produce four side walls using the following two components:

the die 72, which has the groove region 76 with the V-shaped cross section and the molding region 78 in the region of the two ends, and the die 74, which has the projection 80 with the V-shaped cross section. As shown in FIG. 12, the shaped areas 78 of the die 72 form the extrusions 66 or the protrusions in each corner of the box-shaped component 2, where the corresponding ends of two adjacent side walls abut one another.

When the preforming process using the press brake 68 is finished, then the threaded spindles 28 of the adjusting device 26 are pivoted manually, one projecting or retracted distance of the tool 16 - as shown by the arrow in Fig. 1 - is set.

As shown in Fig. 8, the side walls 8 of the plate 1 in one corner thereof against the Side surfaces 34 of the tool 16 of the corner shaping device 4 positioned in the corner thereof, the side surfaces 34 forming the mold surface 36. The debauchery 66 protrude outward beyond the tool 16, while with the drive mechanism 64 the hold-down device 62 is adjusted. As a result of this adjustment, the flat plate part 6 of the plate S is pressed onto the top 30 of the tool 16 and the plate S is there fixed on the top 30.

After the corner molding device 4 holds the plate S on the tool 16, it moves, as shown in FIG. 9, the drive device 46, the roller arrangement 42 in the direction of the arrow (downward in Fig. 9) along the two side surfaces 34 which form the molding surfaces 36, while the pressure surfaces 48 of the roller assembly 42 in contact with the side walls 8 of the plate 1 being held. This causes the debauchery 66 (excess) to be over the tool 16 protrudes as far as it is bent down and deformed to the extent that it is narrow adjacent contact with the two side surfaces 34.

In the corner molding device 4, by moving the roller arrangement 42 into the in 10, the position of the corner region 10 on the box-like component 2 is shown.

As shown in Fig. 11, the actuator 58 moves the support plate 50 in the direction of Side surfaces 34 of the tool 16, while the tool 16 and the pressure surfaces 48 of the Roller arrangement 42 hold the side walls 8 of the box-like component 2 in position. Then the drive arrangement 40 moves the cutting element 38 along the underside 32 of the tool 16. Then the cut edge 60 of the support plate 50 cuts the deburring 66 or the protrusion from the fully formed corner area 10 in cooperation with the cutting element 38 away.

As can be seen from FIGS. 14 and 15, the box-shaped component 2 is the one mentioned Has corner areas after removal of the excess 66 or the excess completed.

The adjusting device 26 allows an advanced or retracted setting Distance of the tool 16 and thus enables appropriate positioning of the tool 16 depending on the thickness of the box-like component 2 for a high Accuracy of the dimensions of the corner area 10 of the finished box-like component 2 and high efficiency of the corner molding device 4.

In addition, the adjustment drive 58 brings the support plate 50 when the debauchery 66 or the protrusion is removed from the manufactured corner area 10, in the direction of the side surface 34 of the tool 16. Then the tool 16 and the pressure surface 48 of the roller assembly holds 42 the side wall 8 of the box-like component 2. Furthermore, the drive arrangement moves 40 the cutting element 38 along the underside 32 of the tool 16. The cutting edge 60 cuts the support plate 50 in connection with the cutting element 38 the debauchery 66 or the supernatant.

In comparison with known devices, the corner molding device 4 allows for the box-like component 2 a simple forming process and enables the box-like To equip component 2 with the corner regions 10. Furthermore, the corner molding device enables 4 the manufacture of the corner regions 10 of the box-like component 2 with a considerable reduction in costs.

The corner molding device 4 for the box-like component 2 according to the present one Invention is not tied to the above description, but are arbitrary adaptations or changes possible, e.g. the adjusting device 26 corresponding to this Embodiment with the manually adjustable threaded spindles 28 for setting a advanced or retracted distance of the tool 16. Alternatively, a motor-driven positioning device 92 may be provided.

In detail, as shown in FIG. 16, the adjustment drive 58 has a motor arrangement, not shown on. A tapered shaft section 92-1 that reciprocates with the motor drive and a transmission link 92-2 for connecting the conical shaft section 92-1 with the tool 16. The motor arrangement brings the conical shaft section 92-1 in a reciprocating motion, this motion then on this tool 16 is then transferred to the tool with the transfer members 92-2, whereby the setting of a retracted or advanced distance of the tool 16 is achieved. In this way, the motor drive enables the advanced or withdrawn distance of the tool 16 and a corresponding positioning of the Tool 16 depending on the thickness of the box-like component 2 and an exact Dimension of the corner region 10 of the finished box-like component 2 and high efficiency of the corner molding device 4.

Instead of this, a pair of positioning means 94 can also be arranged in the area of the roller arrangement 42 may be provided. Specifically, as shown in Figs. 17 and 18, the positioning means 94 a pair of wedge-like means 94-1, a pair of adjusting means 94-3, which on accordingly inclined surfaces 94-2 of the wedge-shaped means 94-1 slide and a pair of motion control parts 94-4 for moving the corresponding adjustment means 94-3.

When the positioning mechanism 94 is activated, the motion control parts 94-4 rotated in a predetermined direction, thereby moving the movable adjusting means 94-3 move that the movable adjustment means 94-3 slide on the inclined surface 94-2. In this case, the roller arrangement 42, which is connected to the movable adjustment means 94-3 is positioned in relation to the tool.

As a further variant, the positioning means 94 can be adjacent to both, namely tools 16 and roller assembly 42 may be provided for greater accuracy depending to achieve from the formatting process and the box-like component 2 with corners. This system allows a further improvement of the processability or the degree of processing.

Furthermore, according to the embodiment of the present invention, the Forming the tool 16 only one type of the molded surface 36, formed by the top in a corner of the tool 16 and two side surfaces 34 that match this previous one Communicate top. Alternatively, it is e.g. - As shown in Fig. 19 - possible that square-shaped tool 16 with one to four shaped surfaces 96-1, 96-2, 96-3 and 96-4 in the corners thereof, e.g. the four corners of it. These shaped surfaces differ in their dimensions.

In the above-mentioned tool 16, a centering pin 24 becomes a central area it is pulled out, and then the tool 16 becomes a predetermined position of the tool 16 pivoted before the tool 16 using the pins 20 and the centering pin 24 is fixed again. With this procedure it is possible to measure the dimensions easy to change in the corner areas 10 of the box-like component 2 with an associated increase in comfort when using.

If a flexible metal material, e.g. Aluminum, for the box-like component 2 used, arises during the downward movement of the deformable metal material, e.g. the gravity-related material shift when the box-like component 2 with the corner areas 10 is formed. As shown in Fig. 20, the tool 16 can be of a variety be provided by horizontal groove-shaped areas 98 in each of the corners.

These groove-shaped areas 98 can become groove areas 98-1 with a triangular cross section, 21a, or groove areas 98-2 with an arcuate cross section, as shown in Fig. 21b. Then when the box-shaped component 2 is produced with the corner regions 10 by the roller arrangement 42, each corner of the box-like component 2 pressed into the groove-shaped areas 98, whereby the gravity-related Material shift is prevented accordingly. This variant prevents all disadvantages regarding the accuracy of the opening angle in the corner areas 10 of the box-shaped component 2 and also creates advantageous options, one to form box-like component 2 with corner regions 10.

As set forth in the foregoing description of the present invention, the present includes Invention a corner molding device 4 with an adjusting device 26 for adaptation to a box-shaped component 2 and a method for forming a three-sided Corner made of a flat, plate-shaped material, in particular sheet metal parallel to the side edges adjacent to the corner over a large part of their longitudinal extent be folded to the flat plate part 6 and in the area on the to be formed Corner from the folded side edge to the level of the flat plate part 6 in a curved course are formed, whereupon the preformed blank in the curved transition area with at least one corner area 10 between the side arrangement covering roller assembly 42 pressed against a die plate and the corner is formed by material forming, characterized in that the side edges in the area of the corner over their entire height to the all-round end faces the die plates are pressed. Therefore, the adjustment device 26 enables an adjustment in projecting or recessed distances of at least one tool 16 and a roller arrangement 42 a corresponding positioning of the tool 16 depending on the thickness of the box-shaped component 2 and a high dimensional accuracy the corner regions 10 of the finished box-shaped component 2 and a high one Economy of the corner molding device 4. In addition, the corner molding device enables 4 compared to the previously known devices matched to the box-like Component 2 according to the present inventions a very simple molding process and enables the box-shaped component 2 to be provided with angular parts. Furthermore Such a device enables the production of the corner areas 10 in the box-shaped Component 2 with a significant reduction in costs.

22 and 23 describe a further embodiment of a system 101 with the corner molding device 4 for forming flat, plate-shaped materials, in particular of component 2, shown for already described above Elements have the same reference numerals. Such systems 101 are in special for the production of triangles on component 2, e.g. for the production of boxes, lids, doors etc., e.g. Installation cabinets etc., made of plate-shaped Blanks used. A machine frame 104 supported on a footprint 103 the system 101 essentially consists of a perpendicular to the contact surface 103 aligned support frame 105, the plate-shaped and parallel to the footprint 103rd extending worktop 14, a guide device 107 with one associated therewith Locking device 108 and a safety device that can be opened and / or closed as required forming security door 109 with the hold-down device appropriately assigned to this 62. The detachable with the support frame 105 or e.g. by welding Ineffectively connected appropriately plate-shaped worktop 14 is preferably on one of the Upper surface 111 facing away from the contact surface 103 with an adjusting device 112 and a Cutting device 113 equipped. The practical worktop 14 made of steel has an approximately rectangular plan with a width 114 and one to the right Angle measured length 115. The tool 16 assigned to the adjusting device 112 is adjustable relative to the roller assembly 42. The roughly half width 114 Guide device 107 oriented perpendicular to the work surface 14 is at least by two spaced-apart guide elements 118 are formed. That of the guide device 107 locking device 108 adapted via a connecting device 119, is by two plate-shaped support elements spaced apart in the direction of length 115 120 with the roller arrangement 42 arranged between them. expedient the roller arrangement 42 is pressed into the bearing elements 120 by the bearing elements rotatably mounted. By connecting the two support elements 120 with a further connecting element becomes a compact locking device 108 creating structural unit, which is held by the connecting device 119. The Connection device 119 is via a manual and / or automatic and / or semi-automatic actuatable change device 121 operatively connected. By pressing one quick-locking element 122 formed by the changing device 121, in particular a lever 123 etc., that between the locking device 108 and the guide device 107 arranged connecting device 119 from a stop position to a release position brought. Of course, the changing device 121 can also be pneumatic and / or hydraulic and / or electrical and / or electropneumatic and / or electrohydraulic Elements 122 may be formed.

A largely known from the prior art, rotatable about a central axis 124 Roller 125 is essentially arranged by two oppositely arranged and tapered conical bodies with a rounded and merging transition area formed. Accordingly, the forms horizontally aligned roller 125 from an approximately hourglass-shaped outline. By the slope of the Truncated cone body, the angle of the corner to be formed is determined. That of the guide device 107 formed guide elements aligned perpendicular to the contact surface 103 118 are releasably and / or permanently connected to the machine frame 104. The guide device operatively connected to one and / or more drive device 126 107 enables a relative movement in the direction of the guide elements 118 the roller assembly 42 to at least one tool 116, thereby making of the bent component 102 is made possible. The drive device is expedient 126 by a hydraulic cylinder due to its economical use and its great forces used. Of course, all others can be from the prior art known drive devices 126, such as electric drives, e.g. spindle drives etc., can be used.

The one that can be adjusted and / or positioned relative to the roller 125 via a drive device 126 and / or fixable adjustment device 112 of the corner shaping device 4 forms at least a suitably one-piece plate-shaped, polygonal, in particular a polygonal backdrop element 127, which by five facing away from each other and the same dimensioned longitudinal end faces 128 and an upper side 129 running at right angles thereto and bottom 130 is formed. As can also be seen from FIG. 23, at least one Expediently the longitudinal end face 128 facing the roller 125 from that on the upper side 129 detachably and / or non-releasably attached tool 16 protrudes. Preferred are those of Longitudinal end faces 128 facing away from the roller 125 in the region of the underside 130 of a at least partially overlooked at right angles to this formed extension 131, on the Function will be discussed in more detail below.

Those formed by the outline shape of the roller 125 and one another in the direction of the central axis 124 tapering surface lines 132 close an opening angle 133 between the two surface lines 132 and form between the outline shape of the roller 125 and the Tool 16 from a distance 134 adjustable via the adjusting device 112, which in Dependency of the component to be deformed, in particular to adjust its wall thickness is. One expediently runs at the imaginary parting plane of the two truncated cones the roller 125 formed symmetry axis 135 congruent with one of the adjusting device 112 trained axis of symmetry 136. The two preferably run the Approximate surface lines 132 facing longitudinal end faces 128 of the link element 127 parallel to these. The two opposite longitudinal end faces which act as a backdrop 137 128 run at least obliquely to the two opposite surface lines 132, the angle formed by the slide path 137 and the axis of symmetry 136 138 is smaller and / or equal and / or larger than half the opening angle 133 the roller 125. An approximately V-shaped counter plate 139 adjoining the extensions 131 has two legs 140 that widen each other by approximately half the opening angle 133 between which a base 141 connecting the legs 140 extends. The thigh 140 form on a surface line 132 facing and parallel to this Longitudinal end faces 142 a further backdrop 143. The perpendicular to the worktop 14th dimensioned thickness of the legs 140 is dimensioned larger than a thickness of the base 141, so that through the arrangement of an approximately trapezoidal plate 144, a flat course of the link element 127, the leg 140 and the plate 144 is formed. The is preferred Plate 144 to the base by a connector known in the art 141 and locked between the two legs 140.

A guide path 145 formed by the extension 131 and the two opposite ones Slide tracks 137 and 143 delimit a longitudinally displaceable one guided by these Sliding block 146. The slidable plate-shaped sliding block 146 points to one of the Slide path 137 facing the longitudinal side surface is inclined and parallel to the slide path 137 extending footprint 147, the sliding block 146 via an associated one Drive arrangement 148 a relative adjustment of that located on the link element 127 Tool 16 according to the double arrows 149 and 150 allows. The backdrop stones 146 is assigned at least one length scale 151, which is preferably on the top surface of the Leg 140 is attached and as an indication of the adjustment according to the double arrows 149 and 150 serves.

The one attached to the base 141 and / or on the worktop 14 releasably and / or non-releasably Plate 144 with a chamber 152 arranged recessed in the direction of the axis of symmetry 136 points in the area of the base of the chamber 152 in the direction of the sliding blocks 146 threaded arrangement 154 protruding from a threaded spindle 153. This is what it is about for example, a precision threaded spindle or a preloaded threaded spindle 153 etc., which due to their high manufacturing accuracy make precise adjustment or positioning of the tool 16 relative to the roller 125. Of course, for example cheaper threaded spindles 153 are used, their play compensation by one between the sliding block 146 and the plate 144, not shown Spring arrangement take place. Due to the accessibility via chamber 152, this can be done for the adjustment of the sliding blocks 146 required torque are applied. By the possibility of separate delivery of the two sliding blocks 146 is an asynchronous, Adjustment of the tool 16 oriented perpendicular to the axis of symmetry 135 is possible.

It proves to be of particular advantage that one formed by the sliding block 146 Inclination angle 155 results in a gear ratio dependent on the slope, so that even with a small adjustment path of the sliding blocks 146, the gear ratio proportional adjustment path of the tool 16 can be set. Through this kind of training the total size of the drive assembly 148, the link member 127 and the counter plate 139 significantly minimized.

Of course, it is possible that only one sliding block 146 is formed, which is also mechanical is operated. Another drive arrangement 148, not shown further, can for example by means of a counter-rotating threaded spindle 153 with it locked and counter-rotating adjustable sliding blocks 146, which correspond to each other according to the drive direction move towards or away, be educated. The synchronous is advantageous in this training Drive the two sliding blocks 146 and thus the uniform infeed in both Directions according to the double arrows 149 and 150. In principle, the distance can be adjusted 134 manually and / or automatically and / or semi-automatically by everyone from the Drive arrangements 148 known in the prior art, such as cranks, levers etc., or electrical, hydraulic, pneumatic drives.

Of course, it is also possible to set up a numerical control that is used for a Adjustment of the tool 117 the control-technical connection of the individual Axes recorded and the signals processed accordingly in a controller and an exact Positioning, repeatability and the adjustment of the distance 134 enables.

As can also be seen in FIG. 23, the worktop 14 is the cutting device 113 with two releasably and / or non-releasably connected to a holder 156 and / or the worktop 14 plate-shaped cutting elements 157, 158 equipped. The is preferred Cutting device 113 along the axis of symmetry 136 and the adjusting device 106 positioned downstream. Of course, the positioning of the cutter 113 on anywhere on the worktop 14 and / or at an external, not shown Device done. One with the bracket 156 and / or the worktop expediently runs 14 connected cutting element 157 flat with the top 111 of the worktop 14 and the further cutting element 158 become perpendicular to the axis of symmetry 136 recessed. The preferably remotely operable cutting device 113 can be built up and / or integrated on the worktop 14.

The bracket 156 is, for example, by a in a reset of the worktop 14th longitudinal cross member 159 formed, the cutting element 154 on the top 111 supports. As can also be seen from this design variant, the holder 156 is one associated with the cutting element 158 operatively connected drive arrangement 160, the a relative adjustment of the cutting element 158 in the direction of the cutting element 157 allows. Here, the drive arrangement 160 is, for example, by a hydraulic unit formed, wherein a cross member 161 receiving the cutting element 158 along two spaced tie rods 162 is guided. One formed by the cutting element 157 Cutting edge 163 projects at least partially from one of the cutting element in the actuated state 158 formed cutting edge 164. The plate-shaped cutting element 157 instructs one end face 165 facing the cutting element 158 one through the two on top of one another triangular recess 166 forming inclined cutting edges 163 whose opening angle 167 suitably corresponds to the opening angle 133. That the Cutting element 157 opposite, recessed, plate-shaped, with a Cutting surface 158 equipped on end face 168 has one through two on top of one another inclined cutting edges 164 formed apex 169, their cutting edges 164 run parallel to the cutting edges 163. At the base of vertex 169, the two opposite end regions of the cut edges 164 an oblique, preferably perpendicular Boundary edge 170 running to the axis of symmetry 136. On a perpendicular to of the boundary edge 170 aligned and facing the cutting element 157 171, the component 2 to be processed can be placed. Of course it can Cutting device 113 is formed by a cutting element 157 and a straightening element be, wherein the cutting element 157 is provided with the cutting edges 163 and that Straightening element only serves as a stop element during the cutting process. The one from the Cutting elements 157 and 158 formed cutting edges 163 and 164 can at least through part of the end face surfaces 165 and 168 of the cutting element 157 and 158 and / or formed by locked insert elements. The locked insert elements have the great advantage that closing insert elements easily and quickly at low Tool costs can be changed.

Expediently, only one cutting element 158 is designed to be movable, which is via the drive arrangement 160 adjustable relative to the preferably fixedly arranged cutting element 157 is. The drive arrangement 160 can of course be used by all known from the prior art Drive arrangements, such as hydraulic, pneumatic, electro-hydraulic Cylinder piston assemblies, electric actuators, etc., may be formed. Of course it is also possible for the two cutting elements 157 and 158 to be adjustable relative to one another are arranged and / or that a movable cutting element 157 or 158 is assigned to a fixed cutting element 158 or 157.

24 and 25, the corner molding device 4 is shown in detail. On the opposite The worktop 14 is adjustably arranged link element 127 is the plate-shaped Tool 16 positioned over the centering bolt 24 and by means of at least one fastening screw 172 attached. The tool 16 forms the shaped surfaces 36. The Tool 16 essentially has a square outline, with the centering pin 24 arranged centrally to the mutually perpendicular shaped surfaces 36 is, whereby the tool 16 around the centering pin 24 or a perpendicular Pivot axis 173, without changing the relative setting compared to the link element 127 positions pivoted by 90 degrees each can be used. To the tool 16 has at least four receptacles 174 assigned to the corner regions for the Fixing screws 172 on. This enables different training in terms of the rounding or design of the shaped surfaces 36 for differently to be shaped Corner regions 10 of the box-like component 2.

The preformed component 2 is used to form the corner region 10 with the side walls 8 applied to the shaped surfaces 36 of the tool 16 and with the holding-down device 62 fixed to the tool 16. The hold-down device 62 consists of a clamping plate 175 which For example, is connected to the security door 109 in a motion-proof manner and together with this is adjusted. Another example is to achieve sufficient clamping forces Clamping element 176, e.g. a pressurized clamping cylinder 177 is provided which on the Clamping plate 175 has a clamping force in the direction of tool 16 or on tool 16 placed component 2 exercises.

If the component 2 is now clamped to the tool 16 to such an extent, the corner region is shaped 10 by adjusting the roller arrangement 42 in the guide elements 118 in Direction of an arrow 178 in the end position of the roller arrangement 42 shown in FIG. 25, at which the corner area 10 is formed and with a protrusion that forms on the molding surface 36 of the tool 16 abuts. Crucial for the exact forming of the corner area 10 is an accurate adjustment of the distance 134 between the mold surface 36 and the Contour of the surface line 132. The distance 134 is to achieve an exact corner deformation to the lower nominal dimension of a thickness 179 of component 2.

It is also critical that there is a distance 180 between one of the roller assemblies 42 facing end edge 181 of the clamping plate 175 and the surface line 132 of the Roller assembly 42 is on the order of a few tenths of a millimeter. In order to counter-molding of the corner region 10 of the box-like component 2 is avoided. By setting the distance 134 to the lower nominal dimension of the corner 179 of the component 2 existing tolerance limits are compensated and an exact right-angled deflection reached in the corner area 10 of component 2. A positive tolerance of the thickness 179 causes a roll forming of the component 2 in the corner area 10 between the molding surface 36 of the Tool 16 and the roller assembly 42nd

The setting of the distance 134 of the mold surface 36 from the roller assembly 42 is about causes the adjustment device 112 with which the link element 127 relative to the worktop 14 or to the roller arrangement 42 can be adjusted. A reference dimension forms a vertical one on the worktop 14 extending center plane, along which the roller assembly 42 is adjusted is and a minimum diameter 182 of the double conical acting in the corner region 10 Roller assembly 42.

To achieve perfect corner reshaping, as shown by way of example in FIG. 25, furthermore, a spray nozzle 183 assigned to the clamping plate 175 is provided, which is connected via a line 184 is acted upon with a lubricant and coolant and thus lubricant and Coolant before the forming process in particular on an inclined surface of the clamping plate 175 sprayed on from where this lubricating and cooling fluid is gravitationally applied to the forming area is transmitted. Since even the smallest quantities are sufficient or too large quantities The spray nozzle 183 is to be avoided at all, as not shown further, via a Dosing device acted on with the lubricant and coolant.

26 and 27 show the cutting device 113 of the corner shaping device 4 in detail shown. On the worktop 14 is e.g. the fixed cutting element via a spacer 185 157 with an underside 186 running parallel to the worktop 14 in one Distance 187 releasably attached to the worktop 14. The cutting element 157 forms one the spacer 185 projecting in the direction of the adjustable cutting element 158 Cut edge 163 from the bottom 186 and one perpendicular to the worktop 14 extending end face 188 is formed. The distance 187 corresponds approximately to a thickness 189 of the adjustable cutting element 158, which is linearly adjustable on the worktop 14 and by means of the drive arrangement 160, e.g. a pressurized cylinder and the cutting edge 164 with the end face 168 and a top 190 formed.

The cutting element 157 is on its end face 188 with a cutting element 158 facing V-shaped, adapted to the corner region 10 of the component 2 to be trimmed Cutout 191 provided. The adjustable cutting element 158, on the other hand, faces the fixed one Cutting element 157 and with the cutout 191 of the same shape and the end face 168 forming a nose-shaped projection 192. Of course, the neckline is 191 with an inner curve adapted to the component 2 in the corner region 10 and the projection 192 with a corresponding outer curve.

In order for the end faces 193 of the corner area 10 to be formed during the corner forming To remove side walls 8 protruding projection 194 by trimming, the component with its opening facing the adjustable cutting element 158, on this with the End faces 193 placed flat and the corner area 10 manually positioned in the cutout 191. Now the cutting element 158 with the drive arrangement 160 in the direction of fixed cutting element 158, there is an exactly aligned trimming along the end faces 193 of the component 2 in the corner area 10, that is, for removal of the supernatant 194.

Of course, such a cutting device 113 is not necessarily immediate can be built on the system 101, but can be a system that is separate from the system 101, form an independent cutting device 113.

A further embodiment of the cutting device 113 is shown schematically in FIG. 28. In this illustrated embodiment, the component 2 to be trimmed is on a base plate 195 with its opening and the side walls 8 projecting upwards. Across from the base plate 195 is an adjustable on this by means of drive 196 Carriage assembly 197 stored. This slide assembly 197 has a tool carrier 198 on the fixed cutting element 157 and that on the drive assembly 160 adjustable cutting element 158 is mounted, the latter on the tool slide 198 in one Guide arrangement 199 is guided.

If component 2 is now placed on the base plate 195 for the trimming process, this is done infeed with the drive 196 of the tool carrier 198 in the direction of an arrow 200, until the adjustable cutting element 158 with an underside 201 on the end faces 193 the side walls 8 comes to rest. The underside 201 of the adjustable cutting element 158 is aligned with an upper side 202 of the fixed cutting element 157 aligned. Once the cutting position has been reached, the adjustable cutting element becomes 158 via the drive arrangement 160 in the direction of an arrow 203 and thus in the direction of fixed cutting element 157 moves until the side wall 8 of the component 2 on the End face 188 of the fixed cutting element 157 comes to rest. When moving on in the direction of arrow 203, this results in shearing off during corner forming resulting projection 194 in exact alignment with the end faces 193 by interaction the cutting edges 163, 164 with the cutting elements 157, 158. After the Trimming process is the tool carrier 198 by means of the drive 196 against the Adjusted in the direction of arrow 200 to an open position distant from base plate 195, with which the component 2 of the cutting device 113 can be removed.

As furthermore with respect to FIGS. 26 and 27 described above relating to the cutting device 113, It can be seen that one is exactly aligned with the end faces 193 of the side walls 8 The course when separating the overhang 194 is achieved in that straightening surfaces 204 form Support elements 205 either on the worktop 14 or independently of it or the system 101 are provided, on which the component with its end faces 193 of the side walls 8 placed and in its corner area 10 with the projection 194 between the Cutting elements 157, 158 protrude. The arrangement of the cutting elements 157, 158 is designed so that the cutting edge 163 of the cutting element 157 and the cutting edge 164 of the Cutting element 158 in the alignment surface 204 formed by the support elements 205 are arranged progressively. The overhang projecting over a height 206 of the side walls 8 194 is thus when performing the trimming process, i.e. by adjusting the adjustable Cutting element 158, relative to the fixed cutting element 157 exactly aligned to achieve the offset-free height 206 of the side walls 8 also in the corner area 10 separated.

As further shown in dashed lines in Fig. 27, there is also the possibility that Movable cutting element 158 with support elements 205 molded onto it in the form to be provided by projections, thereby supporting the component 2 on its side walls 8 is given in the immediate vicinity of the corner area 10 to be trimmed.

As can now also be seen in FIG. 23, the roller arrangement 42 forms the one Roller 125 is rotatably supported in bearings 207 of a mounting frame 208. This becomes a supporting frame 209 formed in the guide elements 118 with the drive device 126 is adjustable in the direction perpendicular to the worktop 14 and forms a guide housing 210. The guide elements 118 thus form a guide device 211 for the guide housing 210. This means that the corner molding device 4 can be quickly converted for differently formed rollers 125 are reached, the surface line 132 of which is to be shaped Corner area 10 of component 2 is adapted. The changing device 121 has quick-closing elements 122, e.g. Lever 123 on to exchange quickly and without using expensive To be able to make tools.

As can also be seen from FIG. 25, a height 212 of the tool 16 or of the circumferential mold surfaces 36 is greater than the height 206 of the side walls 8 of the component 2. In any case, the height 212 of the shaped surfaces 36 is a measure of the height 206 of the side walls 8 plus an expected height 213 of the overhang 194 corresponds. In order to is ensured in the forming of the corner area 10 that the projection 194 after the Forming by rolling in any case lies flat in the area of the molding surfaces 36 and in no case is drawn into the underside of the tool 16, causing jamming would lead and the removal of the component 2 after reshaping the corner region 10th would complicate.

29 shows a further embodiment of the roller arrangement 42 with the hold-down device 62, wherein for components already contained in the previous figures the same terms and reference numbers are used. In the on the machine frame 104 arranged guide device 107, e.g. two spaced apart and to the worktop 14 vertical guide rods 220 is a guide carriage 221 in to the worktop 14 adjustable in the vertical direction. A drive for the guide carriage 221 is e.g. by one in the machine frame 104 or on one opposite the worktop 14 Cantilever 222 arranged and with the guide carriage 221 via a Piston rod 223 drive-connected, with a pressure medium, e.g. Hydraulic oil, actable Actuating cylinder 224. Of course there are for driving the guide carriage 221 other drives are also conceivable, e.g. electrically operated spindle drives etc.

An interchangeably is held in the guide carriage 221 via the changing device 121 cassette 226 formed by a substantially U-shaped profile 225. This cassette 226 The roller 125 is rotatably mounted in side legs 227, 228 about the parallel to the worktop 14 running central axis 124. The side legs 227, 228 are spaced from the worktop 14 connected to a base leg 229 running parallel to this, which on a head plate 230 of guide carriage 221, which is aligned parallel thereto, for transmission that of the actuating cylinder 224 in the direction of the worktop 14 according to an arrow 231 applied pressure on the cassette 226 or roller 124 and also in the Cassette 226 adjustably arranged hold-down plate 232 of hold-down device 62.

The hold-down plate 232 is arranged in the base leg 229 via guide columns 233 Guide elements 234, e.g. Guide bushes 235, in the direction perpendicular to the worktop 14 adjustable led. The guide columns 233 are comprehensive between the hold-down plate 232 and the base leg 229 arranged in coil springs 236 of a spring arrangement 237, where a maximum distance 238 from mutually facing surfaces of the base leg 229 and the hold-down plate 232 by a corresponding stop arrangement between the guide columns 233 and the base leg 229 is reached.

The hold-down device 62 with the hold-down plate 232 is referenced in the cassette 226 arranged on the roller 125 such that the V-shaped contour of the roller 125 facing End edges 181 of the hold-down plate 232 by the distance 180, which is in the Order of magnitude of approx. 1/10 mm moved, set back.

One of the hold-down surfaces 239 of the hold-down plate 232 facing the worktop 14 is on the machine frame 104 or the worktop 14 that for forming in the corner area 10 provided plate part 6 receiving tool 16, in particular a mold block 240 arranged, the further with its facing the roller 125 mold surface 96 with respect to the inner contour of the roller 125 facing him is adjustable and fixable, as is already the case described in detail in the previous figures. It is also mentioned that the form block 240 with respect to one arranged in the geometric center of the mold block 240 Positioning pin 241 and corresponding design of the fastening arrangement each is pivotable through 90 ° in a plane parallel to the worktop 14.

If a preformed plate part 6 is now desired, in which the side walls 8 e.g. through a folding process are preformed, are formed in the corner area 10, this is on the mold block 240 placed, the side walls 8 and the corner region 10, the shaped surfaces 96 of the Form block 240 overlap. To carry out the molding process of the corner area 10 the drive or, for example, the actuating cylinder 224 is now acted upon and the cassette 226 moved with the roller 125 and the holding-down device 62 in the direction of the mold block whereby the plate part 6 is clamped to the mold block 240 by means of the hold-down plate 232 becomes. In the further course of movement of the cassette 226 in the direction of arrow 231 the spring arrangement 237 of the holding-down device 62 is compressed and the contact pressure continuously increased until the in relation to the hold-down surface 239 in its initial position higher roller 125 carries out the forming process in the corner region 10 of the plate part 6, in which the irregularly preformed corner area 10 on the molding surfaces 96 of the molding block 240 is pressed and so the rectangular position of the adjacent Side surfaces 8 in the corner area 10 is reached.

In conclusion, it should be pointed out that in the exemplary embodiments described above the individual parts or components or assemblies are shown schematically or simplified are. Furthermore, individual parts of the combinations of features described above can also be used of the embodiment form independent solutions according to the invention.

Above all, the individual in FIGS. 1 to 15; 16; 17, 18; 19; 20; 21a, 21b; 22, 23; 24 25; 26, 27; 28; 29 shown designs the subject of independent inventive Form solutions. The related tasks and solutions according to the invention can be found in the detailed descriptions of these figures.

REFERENCE NUMBERS

S

plate

2

component

4

Corner molding device

6

plate part

8th

Side wall

10

corner

12

frame

14

countertop

16

Tool

18

bearing block

20

pen

22

liner

24

centering

26

adjustment

28

screw

30

top

32

bottom

34

side surface

36

form surface

38

cutting element

40

drive arrangement

42

roller assembly

44

conical part

46

driving means

48

print area

50

support plate

52

top

54

bottom

56

Inner surface

58

adjustment

60

cutting edge

62

Hold-down device

64

drive mechanism

66

debauchery

68

press brake

70

main body

72

die

74

dies

76

groove region

78

shape area

80

head Start

82

driving device

92

positioning

92-1

shaft section

92-2

transmission member

94

positioning

94-1

medium

94-2

surface

94-3

adjustment

94-4

Motion control part

96

form surface

96-1

form surface

96-2

form surface

96-3

form surface

96-4

form surface

98

Area

98-1

groove region

98-2

groove region

101

investment

103

footprint

104

machine frame

105

supporting frame

107

guiding device

108

locking device

109

security door

111

top

112

adjustment

113

cutter

114

width

115

length

118

guide elements

119

connecting device

120

support element

121

changing device

122

Quick-acting element

123

lever

124

central axis

125

roller

126

driving means

127

link element

128

Longitudinal faces

129

top

130

bottom

131

extension

132

generating line

133

opening angle

134

distance

135

axis of symmetry

136

axis of symmetry

137

link path

138

angle

139

counterplate

140

leg

141

Base

142

Longitudinal face

143

link path

144

plate

145

guideway

146

sliding block

147

footprint

148

drive arrangement

149

double arrow

150

double arrow

151

Längenmeßstab

152

chamber

153

screw

154

thread arrangement

155

tilt angle

156

bracket

157

cutting element

158

cutting element

159

crossbeam

160

drive arrangement

161

crossbeam

162

tie rod

163

cutting edge

164

cutting edge

165

Front side surface

166

reset

167

opening angle

168

Front side surface

169

vertex

170

boundary edge

171

bearing surface

172

fixing screw

173

swivel axis

174

admission

175

chipboard

176

clamping element

177

clamping cylinder

178

arrow

179

thickness

180

distance

181

front edge

182

diameter

183

spray nozzle

184

management

185

spacer bar

186

bottom

187

distance

188

face

189

thickness

190

top

191

neckline

192

head Start

193

face

194

Got over

195

baseplate

196

drive

197

carriage assembly

198

tool carrier

199

guide assembly

200

arrow

201

bottom

202

top

203

arrow

204

directional surface

205

support element

206

height

207

camp

208

mounting frame

209

supporting frame

210

guide housing

211

guiding device

212

height

213

height

220

guide rods

221

guide carriage

222

cantilever

223

piston rod

224

actuating cylinder

225

profile

226

cassette

227

side leg

228

side leg

229

base leg

230

headstock

231

arrow

232

Hold-down plate

233

guide column

234

guide element

235

guide bush

236

Coil spring

237

spring assembly

238

front edge

239

Hold-down surface

240

mold block

241

positioning

Claims (7)

Method for forming a corner area from a flat plate, in particular sheet metal plate, in which the side edges are folded and a spatially curved transition area is formed between the side edges in the corner area and this is converted into the desired shape of the corner by material shaping with a protrusion in the corner area, characterized in that that the component (2) with the free end faces (194) adjacent to the overhang (194) of at least two side walls (8) enclosing a corner region (10) between them is placed on at least one support element (205) forming a straightening surface (204) and the area of the projection (194) projecting over the leveling surface (204) in the direction opposite from the flat plate part (6) is cut off with cutting elements (38, 157, 158) which can be adjusted relative to one another, the cutting edges (163, 164) of which in the leveling surface ( 204) run. Method according to claim 1, characterized in that the support element (205) is fixed and the cutting elements (157, 158) are adjustable relative to the support element (205) and perpendicular to the side walls (8) of the component (2) to be produced. Method according to claim 1 or 2, characterized in that support elements (205) for the component (2) are provided on one of the two, in particular the adjustable cutting element (158). Method according to one or more of claims 1 to 3, characterized in that a straightening surface (204) runs horizontally. Method according to one or more of claims 1 to 4, characterized in that the straightening surface (204) runs vertically. Method according to one or more of claims 1 to 5, characterized in that a rotating cutting element is used which is moved parallel to the straightening surface (204) transversely to the overhang (194). System for forming a three-sided corner area on a component from a flat plate with a tool, the corner and edge formation between a top and the side surfaces is adapted to the spatial shape of the corner areas of the component to be manufactured, with a hold-down device for clamping the component between this and the top of the tool and with a roller arrangement arranged opposite the corner region of the component to be produced, with a roller which can be adjusted substantially perpendicular to the top of the tool together over a height of the side faces relative to the workpiece and with a cutting device, preferably with a fixed and an adjustable one Cutting element, characterized in that a support element (205) arranged adjacent to the tool (16), preferably in a separate machine frame (104) arranged from the worktop (14) for receiving the tool (16), is provided i st, which has at least one straightening surface (204) for receiving the free end faces (193) adjacent to the overhang (194) of at least two side walls (8) enclosing a corner region (10) between them, and that via the straightening surface (204) protruding corner area (10) with projection (194) of the corner area (10) relative to each other adjustable cutting elements (157, 158) are assigned, the cutting edges (163, 164) of which are arranged in a plane that receives the straightening surface (204).

Images