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
  • B21D19/00—Flanging or other edge treatment, e.g. of tubes
  • B21D19/02—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge
  • B21D19/04—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers
  • B21D19/043—Flanging or other edge treatment, e.g. of tubes by continuously-acting tools moving along the edge shaped as rollers for flanging edges of plates
• • 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
  • B21D19/00—Flanging or other edge treatment, e.g. of tubes
  • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
• • 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
  • B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means

Definitions

• the invention relates to a method for forming a corner area from a flat plate, in particular sheet metal plate, as described in the preambles of claims 1 to 4 and 26, and a system for forming a three-sided corner area on a component, as described in the preambles of claims 28 to 33 are described.
• the housing is produced from a flat plate part or a plate.
• This type of housing has an opening in the main body and a cover that can be positioned on the opening.
• the lid is designed to open and close.
• the lid is made as a box-like component from a plate that is subjected to plate processing.
• a cover or the like is to be provided on the metal housing, it has to be formed from a plate into a box-shaped component.
• square-shaped recesses are made from a rectangular, plate-like normal metal plate in the four
• Corners The panel is then folded along the four side edges to form the four side walls. Furthermore, the corresponding end parts of the opposite side walls are welded together to form a corner area. These corner areas are finished using a grinding machine etc.
• box-like components require the following work steps: cutting away the material parts of the plate in the four corners thereof; Folding the panel along the four side edges to form the side walls; Welding the respective end portions of the adjacent side walls together to form a corner area and finishing the corner area with a grinder or the like.
• the box-like components are therefore provided with these corner regions by a chain of such deformation processes. This causes inconvenience, since such a large number of work steps complicates the manufacture of the corner areas in such a box-shaped component and thereby increases the costs.
• a corner molding machine and a method for producing box-shaped components are known from the documents - DE 4009 466 C2 and DE 196 14 517 A.
• a plate-shaped workpiece is deformed by means of a roller as a bending tool in such a way that a corner of a surface delimited on three sides is formed.
• a corner of a surface delimited on three sides is formed.
• the opposite vertical side surfaces of the tool and the hold-down device are offset from one another by a horizontal dimension and, in addition, that of the hold-down device is beveled.
• the disadvantage here is that the component is not held between the roller causing the deformation of the component and the hold-down device and can move in this direction during the rolling process, so that there may be warps in the area of the flat plate part of a box-like component.
• the present invention has for its object to provide a method for the production of
• box-shaped components which are made from flat panels, which enables the precise manufacture of corner areas for box-like components with different external dimensions and thicknesses with as little effort for post-processing as well as to create a system for the production of such box-shaped components the one on flat panels or on preformed in the edge area Panel parts of differently designed corner areas can be produced.
• the side walls are guided over the entire height of the tool and bear against its vertical shaped surfaces, so that the component can be lifted off even when the protrusions have not yet been removed, in a direction perpendicular to the top of the tool Direction is possible undisturbed.
• the method according to claim 2 advantageously allows the excess to be trimmed without burrs between the end edges of the side walls of the component which form the corner region.
• the measures according to claim 4, on the other hand, advantageously allow an exact adjustment and adaptation of the relative position of the mold surfaces of the tool to the surface lines of the roller arrangement or its roller, as a result of which embossments or undesirable material deformations of the surface of the component in the corner region or shape region of the roller arrangement or
• the process according to claim 26 enables a high surface quality without warping and undesired, undulating deformation of the material in the corner area.
• the sequence as described in claim 27, creates an offset-free transition area of the side walls in the corner area.
• An embodiment according to claim 29 is also advantageous, since as a result the cutting elements connect exactly to the actual course of the side edges and can be adapted to the transition region of the projections without manual repositioning being necessary.
• the embodiment according to claim 32 makes it possible to adapt the shape of the surface line or the geometry of the roller of the roller arrangement exactly to different shapes of the corner regions. As for the respective shapes of the corner area
• Tools correspondingly adapted roller arrangement can be kept in stock and these can be adapted in just a few steps, just like the tool, by adjusting the corner areas.
• An embodiment according to claim 33 enables the attainment of minimal tolerance limits in the forming and transition area when forming the corner area and thus the elimination of cost-intensive post-processing.
• An embodiment as described in claim 38 is advantageous, as a result of which a very compact and space-saving unit is achieved and substantial simplifications in the control device for carrying out the forming process and the safety control for protection the operator can be reached.
• an embodiment according to claim 40 is also advantageous, as a result of which very high hold-down forces and thus exact forming results are achieved.
• FIG. 1 shows a roller arrangement and a tool according to a possible embodiment of the present invention in plan view, simplified and enlarged;
• Figure 2 shows an essential part of the corner molding device in side view.
• Figure 3 shows an essential part of the corner molding device and a box-shaped component in plan view.
• Fig. 4 is a fixed and a movable cutting element in a diagrammatic representation, schematic and enlarged;
• FIG. 5 is a front view of a folding machine
• FIG. 6 shows the side view of the folding machine according to FIG. 5, in section
• 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 diagrammatic representation
• FIG. 16 shows an embodiment variant of the present invention of the roller arrangement and a tool in a top view, in a schematic and enlarged representation
• FIG. 18 shows the roller arrangement according to FIG. 17 in section along the lines 18-18 in FIG. 17;
• 21a shows a groove area of the tool in section, schematically;
• 21b shows a groove area of the tool in section, schematically;
• FIG. 22 shows a further embodiment of a corner shaping device in view
• FIG. 23 shows the corner molding device according to FIG. 22 in a top view, partly in section
• FIG. 25 shows the corner shaping device, cut along lines XXV-XXV in FIG. 24;
• 26 shows a further embodiment of a cutting device according to the invention, cut according to lines XXVI-XXVI in FIG. 27;
• FIG. 27 shows the cutting device according to FIG. 26 in plan view, in a schematic representation
• 29 shows a further embodiment of a roller arrangement with the hold-down device, the corner shaping device according to the invention, cut.
• 1 to 15 show an embodiment of the present invention.
• reference number 2 shows a box-like component; and 4 one Corner molding device.
• 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.
• Plate S folded along the four side edges to form four side walls 8. As a result, the plate S is formed into the box-shaped component 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 equipped with an essentially polygonal plate-like tool 16.
• the tool 16 is fixed on the worktop 14.
• the tool 16 according to the present embodiment and is equipped with a square plate shape.
• the tool 16 is fastened with a centering pin 24 on a bearing block 18 of the worktop 14, pins 20 being inserted into the bearing block 18 and intermediate bearings 22 additionally being arranged between them.
• an adjusting device 26 is arranged on the worktop 14.
• the adjustment device 26 defines a position where one of the two, namely the tool 16 or the roller arrangement 42 described below, is mounted.
• the adjusting device 26 comprises the intermediate bearings 22 and manually adjustable threaded spindles 28.
• the threaded spindles 28 are arranged between the worktop 14 and the intermediate layers 22.
• the threaded spindles 28 can be rotated manually, as a result of which an advanced or retracted 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 bottom sides 30, 32 and four side surfaces 34. These four side surfaces 34 are connected to the top and bottom 30, 32.
• the tool 16 is formed with a shaped surface 36 for producing the corner region 10 of a corner of the box-shaped component 2.
• the molding surface is formed by the top 30 in a corner of the tool 16 and two side surfaces 34 which communicate with this top 30.
• the tool is also final with a cutting element 38 for cutting away the excess 66 or a protrusion (see FIG. 13) 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 underside 32.
• a drive arrangement 40 for the cutting element 38 moves the cutting element 38 in the region of the underside 22 to the side wall 8 of the box-like component 2 or away from it.
• the corner molding device 4 is further provided with an essentially opposite circular cone-like roller arrangement 42.
• the roller assembly 42 is moved along the two side surfaces 34 that form the molding surface 36 at a corner of the tool 16.
• the roller arrangement 42 essentially forms a double circular cone function in which a pair of circular cone parts 44 are connected to one another at their tips (vertices).
• a drive device 46 for the roller arrangement 42 moves it along the two side surfaces 34 which form the molding surface 36.
• the roller arrangement 42 is provided with two pressure surfaces 48.
• the pressure surfaces 48 deform the excesses 66 or protrusions of the box-shaped component 2 in a corner thereof in such a way that the excesses or the excess 66 in one directly contact the two side surfaces 34 and form a corner region 10.
• the pressure surfaces 48 are formed with a circular cone surface which are inclined in opposite directions, but which extend continuously towards one another towards the tip.
• the roller arrangement 42 according to the present exemplary embodiment is arranged and designed such that it cannot twist in relation to the two side surfaces 34.
• the corner molding device 4 is further provided with a support plate 50.
• the support plate 50 can be adjusted in height down to the bottom 32 in a corner of the tool 16.
• the support plate 50 is provided with an upper and lower side 52, 54 and two inner surfaces 56, which are located opposite the aforementioned side surfaces 34.
• An adjusting 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 arranged in an area in which the underside 54 merges into the inner surface 56. If the cutting edge 60 in rieh tion of the side surfaces 34 of the tool 16 is moved, the tool 16 and the support plate 50 hold the side wall 8 of the box-like component 2. Accordingly, the cut edge 60 cuts the debouching 66 or the protrusion of the finished corner region 10 of the box-like component 2 in connection with the Cutting element 38 away when the drive arrangement 40 for the cutting element 38 moves the cutting element 38 along the underside 32 of the tool 16.
• Reference numeral 62 denotes a hold-down device which holds the flat plate part 6 of the box-like component 2 from an upper side.
• the reference numeral 64 denotes a drive mechanism for the hold-down device 62.
• the box-shaped component 2 with a corner region 10 is produced using the corner molding device 4, the pre-processing has already been completed, as shown in FIG. 7.
• the flat plate part 6 of the square plate-shaped plate S with good rolling deformation properties is folded along the four side edges, so that four side walls 8 are formed.
• the box-like component 2 has the excess (protrusion) 66, which is made in each corner.
• the above-mentioned pretreatment can be carried out with a press brake 68.
• the press brake 68 is provided with a die 72 and a stamp 74.
• the die 72 is fixed on a main body 70.
• the stamp 74 is moved in the direction of the die 72.
• 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 area 76 thus has a shaped area 78 which is provided in the area of both ends in areas that correspond to the corner areas 10 of the box-like component 2.
• Molding area 78 has a height "hl” 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.
• the press brake 78 enables the flat plate part 6 of the plate S to be folded along its four side edges, to make four sidewalls 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.
• 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.
• the side walls 8 of the plate 1 are positioned in a corner thereof against the side surfaces 34 of the tool 16 of the corner molding device 4 in the corner thereof, the side surfaces 34 forming the molding surface 36.
• the excesses 66 can protrude outward beyond the tool 16, while the hold-down device 62 is adjusted with the drive mechanism 64. As a result of this adjustment, the flat plate part 6 of the plate S is pressed onto the upper side 30 of the tool 16 and the plate S is fixed on the upper side 30.
• the drive device 46 moves 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 are held in contact with the side walls 8 of the plate 1.
• the corner region 10 on the box-like component 2 is produced by moving the roller arrangement 42 into the position shown in FIG. 10.
• the actuator 58 moves the support plate 50 in the direction of the 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.
• the drive arrangement 40 moves the cutting element 38 along the underside 32 of the tool 16.
• the cut edge 60 of the support plate 50 cuts the weld 66 or the protrusion away from the fully formed corner area 10 in cooperation with the cutting element 38.
• the box-shaped component 2 which has the mentioned corner regions, is finished after the debonding 66 or the excess has been removed.
• the adjusting device 26 enables the adjustment of an advanced or retracted distance of the tool 16 and thus enables a corresponding positioning of the tool 16 as a function of the thickness of the box-like component 2 for high accuracy of the dimensions of the corner region 10 of the finished box-like component 2 and high economic efficiency Corner shaping device 4.
• the adjusting drive 58 brings the support plate 50 in the direction of the side surface 34 of the tool 16 when the debonding 66 or the protrusion is removed from the corner region 10 produced. Then the tool 16 and the pressure surface 48 of the roller arrangement 42 hold the side wall 8 of the box-like component 2. Furthermore, the drive arrangement 40 moves 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 debouchment 66 or the protrusion.
• the corner shaping device 4 for the box-like component 2 enables a simple shaping process and enables the box-like component 2 to be equipped with the corner regions 10. Furthermore, the corner molding device 4 enables the corner regions 10 of the box-like component 2 to be produced with a considerable reduction in costs.
• the corner shaping device 4 for the box-like component 2 according to the present invention is not bound to the above description, but any adaptations or changes are possible, for example the adjusting device 26 according to this embodiment with the manually adjustable threaded spindles 28 for adjusting a advanced or retracted distance of the tool 16.
• a motor-driven positioning device 92 can be provided here.
• the adjusting drive 58 has a motor arrangement, not shown.
• a tapered shaft portion 92-1 that can be reciprocated with the motor drive and a transmission link 92-2 for connecting the tapered shaft portion 92-1 to the tool 16.
• the motor assembly reciprocates the tapered shaft portion 92-1 Movement, this movement then being transmitted to this tool 16 with the transmission members 92-2 to the tool, the setting of a retracted or advanced distance of the tool 16 being achieved.
• the motor drive enables an adjustment of the advanced or retracted 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 shaping device 4.
• a pair of positioning means 94 can also be provided in the area of the roller arrangement 42.
• the positioning means 94 may include a pair of wedge-like means 94-1, a pair of adjustment means 94-3, which slide and slide on correspondingly inclined surfaces 94-2 of the wedge-shaped means 94-1 Have pair of motion control parts 94-4 for moving the corresponding adjustment means 94-3.
• the movement control parts 94-4 are rotated in a predetermined direction, moving the movable adjustment means 94-3 such that the movable adjustment means 94-3 slide on the inclined surface 94-2.
• roller assembly 42 which is connected to the movable adjustment means 94-3, can be positioned in relation to the tool.
• the positioning means 94 can be provided adjacent to both, namely the tool 16 and the roller arrangement 42, in order to achieve greater accuracy depending on 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.
• the Forming the tool 16 only one type of the shaped surface 36 is formed, by the top in a corner of the tool 16 and two side surfaces 34 that communicate with this previous top.
• the square-shaped tool 16 with one to four shaped surfaces 96-1, 96-2, 96-3 and 96-4 in the corners thereof, for example the four corners thereof. form.
• the dimensions of these shaped surfaces differ from one another.
• a centering bolt 24 is pulled out from a central region thereof and then the tool 16 is pivoted to a predetermined position of the tool 16 before the tool 16 is fixed again using the pins 20 and the centering bolt 24. With this procedure, it is possible to easily change the dimensions in the corner regions 10 of the box-like component 2, with an associated increase in comfort during use.
• the tool 16 may be provided with a plurality of horizontal groove-shaped areas 98 in each of the corners.
• groove-shaped areas 98 can be made into groove areas 98-1 with a triangular cross section, as shown in FIG. 21a, or groove areas 98-2 with an arcuate cross section, as shown in FIG. 21b. Then, when the box-shaped component 2 with the corner regions 10 is produced by the roller arrangement 42, each corner of the box-like component 2 is pressed into the groove-shaped regions 98, whereby the shift of gravity-related material is prevented accordingly.
• This embodiment variant avoids all disadvantages with regard to the accuracy of the opening angle in the corner regions 10 of the box-shaped component 2 and also creates advantageous possibilities for forming a box-like component 2 with corner regions 10.
• the present invention comprises a corner molding device 4 with an adjusting device 26 for adapting to a box-shaped component 2 and a method for forming a triangular boundary from a flat, plate-shaped material, in particular sheet metal, in which the the corner of neighboring side edges over a large part of your longitudinal extent be bent to the flat plate part 6 and in the area on the corner to be formed from the folded side edge to the plane of the flat plate part 6 into a curved course, whereupon the preformed cut in the curved transition area with at least one corner area 10 between see the side arrangement covering roller arrangement 42 pressed against a die plate and the corner is formed by material forming, characterized in that the side edges in the corner are pressed over their entire height to the circumferential end faces of the die plates.
• 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 of the corner regions 10 of the finished box-shaped component 2 and a high level of economy of the corner molding device 4.
• the corner molding device 4 enables a very simple molding process compared to the previously known devices matched to the box-like component 2 in accordance with the present inventions and enables the box-shaped component 2 to be provided with angular parts.
• such a device enables the corner regions 10 to be produced in the box-shaped component 2 with a considerable reduction in costs.
• FIG. 22 and 23 show a further embodiment of a system 101 with the corner shaping device 4 for shaping flat, plate-shaped materials, in particular the component 2, the same reference numerals being used for elements already described above.
• Systems 101 of this type are used in particular for the production of corners on the component 2 which are delimited on three sides, e.g. for the manufacture of boxes, lids, doors etc., e.g. Installation cabinets etc., made of plate-shaped
• a machine frame 104 of the system 101 supported on a support surface 103, essentially consists of a support frame 105 oriented vertically on the support surface 103, the plate-shaped work plate 14 running parallel to the support surface 103, a guide device 107 with a locking device 108 associated therewith, and a needable and / or lockable safety door 109 forming a safety device with the hold-down device 62 appropriately assigned to it.
• the suitably plate-shaped worktop 14 which is detachably or for example permanently connected by welding to the support frame 105 is preferably provided on an upper side 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 a length 115 measured at right angles thereto.
• the tool 16 assigned to the adjusting device 112 is adjustable relative to the roller arrangement 42.
• the guide device 107 oriented approximately in the region of half the width 114 perpendicular to the worktop 14 is formed by at least two guide elements 118 spaced apart from one another.
• the locking device 108 which is adapted by the guide device 107 via a connecting device 119, is formed by two plate-shaped carrier elements 120 spaced apart from one another in the direction of the length 115, with the roller arrangement 42 arranged between them.
• the roller arrangement 42 is expediently rotatably supported by the bearing elements pressed into the carrier elements 120.
• connection of the two carrier elements 120 to a further connecting element creates a compact structural unit which forms the locking device 108 and is held by the connecting device 119.
• the connecting device 119 is functionally connected via a manually and / or automatically and / or semi-automatically operated changing device 121.
• a quick-locking element 122 formed by the changing device 121 in particular a lever 123, etc.
• the connecting device 119 arranged between the locking device 108 and the guide device 107 is brought from a holding position into a release position.
• the changing device 121 can also be formed by pneumatic and / or hydraulic and / or electrical and / or electropneumatic and / or electrohydraulic elements 122.
• a roller 125 which is largely known from the prior art and can be rotated about a central axis 124, is essentially formed by two truncated cone bodies arranged opposite one another and tapering conically with one another, with a rounded and merging transition region. Accordingly, the horizontally aligned roller 125 forms an approximately hourglass-shaped outline shape. The angle of the corner to be formed is determined by the slope of the cone frustum.
• the guide elements 118 formed by the guide device 107 perpendicular to the stand surface 103 are detachably and / or non-detachably connected to the machine frame 104.
• the guide device 107 which is operatively connected to one and / or more drive device 126, enables the roller arrangement 42 to move relative to at least one tool 116 in the direction of the guide elements 118, thereby making it possible to manufacture the bent component 102.
• the drive device 126 is expediently used by a hydraulic cylinder on account of its economical use and its great forces. Of course, all others can be from the prior art known drive devices 126, such as electric drives, for example spindle drives etc., can be used.
• the adjusting device 112 of the corner shaping device 4 which is adjustable and / or positionable and / or fixable relative to the roller 125 via a drive device 126, forms at least one appropriately one-piece plate-shaped, polygonal, in particular a polygonal, backdrop element 127, which is made up of five mutually facing and identically dimensioned elements Longitudinal end faces 128 and an upper side 129 and lower side 130 running at right angles to these are formed. As can also be seen from FIG. 23, at least one, advantageously the longitudinal end face 128 facing the roller 125 becomes the one on the top
• the longitudinal end faces 128 facing away from the roller 125 in the area of the underside 130 are preferably at least partially surmounted by an extension 131 formed at right angles thereto, the function of which will be discussed in more detail below.
• the surface lines 132 formed by the outline shape of the roller 125 and converging towards one another in the direction of the central axis 124 enclose an opening angle 133 between the two surface lines 132 and form a distance 134 which can be adjusted via the adjustment device 112 between the outline shape of the roller 125 and the tool 16, which is to be set as a function of the component to be deformed, in particular its wall thickness.
• an axis of symmetry 135 formed on the imaginary parting plane of the two cones of the butt body of the roller 125 runs congruently with an axis of symmetry 136 formed by the adjusting device 112.
• the two longitudinal end faces 128 of the link element 127 facing the surface lines 132 preferably run approximately parallel to these.
• An approximately V-shaped counterplate 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 legs 140 form a further slide track 143 on a longitudinal end face 142 facing the surface line 132 and running parallel to the latter.
• the thickness of the legs 140 which is measured perpendicular to the worktop 14, is greater than the thickness of the base 141, so that the arrangement of an approximately trapezoidal plate 144 ensures that the surface of the plastic is flat. lissenemias 127, the leg 140 and the plate 144 is formed.
• the plate 144 is preferably locked to the base 141 and between the two legs 140 by a connecting element known from the prior art.
• Slide tracks 137 and 143 delimit a longitudinally movable slide block 146 guided by them.
• the slidable, plate-shaped slide block 146 has a sloping and parallel to the slide track 137 on a longitudinal side surface 147, the slide block 146 via a drive arrangement 148 assigned to it allows a relative adjustment of the tool 16 located on the link element 127 according to the double arrows 149 and 150.
• the sliding blocks 146 are assigned at least one length scale 151, which is preferably attached to the top surface of the legs 140 and serves as an indication of the adjustment path according to the double arrows 149 and 150.
• the plate 144 which is detachably and / or non-releasably attached to the base 141 and or to the worktop 14, with a chamber 152 arranged recessed in the direction of the axis of symmetry 136, has in the region of the base area of the chamber 152 in the direction of the sliding blocks 146 a thread arrangement projecting through a threaded spindle 153 154 on.
• This is, for example, a precision threaded spindle or a preloaded threaded spindle 153, etc., which, due to its high manufacturing accuracy, enables the tool 16 to be precisely adjusted or positioned relative to the roller 125.
• threaded spindles 153 can also be used, for example, whose play compensation takes place by means of a spring arrangement (not shown further) arranged between the sliding block 146 and the plate 144. Due to the accessibility via chamber 152, this can be done for the
• Adjustment of the sliding blocks 146 required torque can be applied.
• the possibility of separate infeed of the two sliding blocks 146 enables an asynchronous adjustment of the tool 16 oriented perpendicular to the axis of symmetry 135.
• 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, an adjustment proportional to the gear ratio can be set away of the tool 16.
• the overall size of the drive arrangement 148, the link element 127 and the counter plate 139 is considerably minimized.
• Another drive arrangement 148 can be formed, for example, by a counter-rotating threaded spindle 153 with sliding blocks 146 which are locked and can be adjusted in opposite directions and move towards or away from one another in accordance with the drive direction.
• the advantage of this design is the synchronous drive of the two sliding blocks 146 and thus the uniform infeed in both directions according to the double arrows 149 and 150.
• the distance 134 can be adjusted manually and / or automatically and / or semi-automatically by all of the prior art known drive assemblies 148, such as cranks, levers, etc., or electric, hydraulic, pneumatic drives.
• the cutting device 113 is equipped with two plate-shaped cutting elements 157, 158 which are detachably and / or non-releasably connected to a holder 156 and / or the worktop 14.
• the cutting device 113 is preferably positioned downstream along the axis of symmetry 136 and the adjusting device 106.
• the cutting device 113 can be positioned at any desired location on the worktop 14 and / or also on an external device (not shown).
• a cutting element 157 connected to the holder 156 and / or the worktop 14 expediently runs flat with the upper side 111 of the worktop 14 and the further cutting element 158 is recessed in the direction perpendicular to the axis of symmetry 136.
• the preferably remotely operable cutting device 113 can be assembled and / or integrated on the worktop 14.
• the holder 156 is formed, for example, by a cross member 159 which is longitudinal in a reset of the worktop 14 and which holds the cutting element 154 on the upper side 111.
• the holder 156 is assigned a drive arrangement 160 which is operatively connected to the cutting element 158 and which enables a relative adjustment of the cutting element 158 in the direction of the cutting element 157.
• the drive arrangement 160 is formed, for example, by a hydraulic unit, with a cross member 161 receiving the cutting element 158 along two he is guided spaced tie rods 162.
• a cut edge 163 formed by the cutting element 157 projects at least partially in the actuated state from a cut edge 164 formed by the cutting element 158.
• the plate-shaped cutting element 157 has, on an end face 165 facing the cutting element 158, a triangular recess formed by the two cutting edges 163 tapering towards one another
• the recessed, plate-shaped cutting element 158 opposite the cutting element 157 and equipped with an end face 168 has a vertex 169 formed by two cutting edges 164 tapering towards one another, the cutting edges 164 of which run parallel to the cutting edges 163.
• a boundary edge 170 which runs obliquely, preferably perpendicular to the axis of symmetry 136, is formed at the two opposite end regions of the cut edges 164.
• the component 2 to be processed can be placed on a support surface 171 oriented perpendicular to the boundary edge 170 and facing the cutting element 157.
• the cutting device 113 can be formed by a cutting element 157 and a straightening element, the cutting element 157 being provided with the cutting edges 163 and the straightening element only serving as a stop element during the cutting process.
• the cut edges 163 and 164 formed by the cutting elements 157 and 158 can be formed at least by part of the end face 165 and 168 of the cutting element 157 and 158 and / or by locked insert elements.
• the locked insert elements have the great advantage that closing insert elements can be changed quickly and easily at low tool costs.
• Only one cutting element 158 is expediently designed to be movable, which is adjustable via the drive arrangement 160 relative to the preferably fixedly arranged cutting element 157.
• the drive arrangement 160 can of course be formed by all drive arrangements known from the prior art, such as hydraulic, pneumatic, electro-hydraulic cylinder piston arrangements, electrical actuators, etc.
• the two cutting elements 157 and 158 are arranged such that they can be adjusted relative to one another and / or that a movable cutting element 157 or
• 158 is assigned to a fixed cutting element 158 or 157.
• the plate-shaped tool 16 is positioned above the centering bolt 24 on the link element 127, which is adjustable relative to the worktop 14, and is secured by means of at least one fastening element. supply screw 172 attached.
• the tool 16 forms the shaped surfaces 36.
• the tool 16 essentially has a square outline, the centering pin 24 being arranged centrally with respect to the shaping surfaces 36 arranged at right angles to one another, as a result of which the tool 16 around the centering pin 24 or about a vertically running pivot axis 173 without changing the relative setting the link element 127 can be used in positions pivoted by 90 degrees.
• the tool 16 has at least four receptacles 174 associated with the corner regions for the fastening screws 172. This enables a different design with regard to the rounding or design of the shaped surfaces 36 for corner regions 10 of the box-like component 2 to be shaped differently.
• the preformed component 2 is applied to form the corner area 10 with the side walls 8 on the shaped surfaces 36 of the tool 16 and fixed to the tool 16 with the hold-down device 62.
• the hold-down device 62 consists of a clamping plate 175, which is, for example, fixedly connected to the security door 109 and is adjusted together with it.
• a further clamping element 176 e.g. a pressurized clamping cylinder 177 is provided which exerts a clamping force on the clamping plate 175 in the direction of the tool 16 or the component 2 placed on the tool 16.
• the corner region 10 is shaped by adjusting the roller arrangement 42 in the guide elements 118 in the direction of an arrow 178 into the end position of the roller arrangement 42 shown in FIG. 25, in which the corner region 10 is formed and rests on the forming surface 36 of the tool 16 with a protrusion that forms.
• Decisive for the exact shaping of the corner area 10 is an exact adjustment of the distance 134 between the shaped surface 36 and the contour of the surface line 132.
• the distance 134 must be set to the lower nominal dimension of a thickness 179 of the component 2 in order to achieve an exact corner shaping.
• a distance 180 between an end edge 181 of the clamping plate 175 facing the roller arrangement 42 and the surface line 132 of the roller arrangement 42 is of the order of a few tenths of a millimeter. This prevents counter-molding of the corner region 10 of the box-like component 2.
• the distance 134 By setting the distance 134 to the lower nominal dimension of the corner 179 of the component 2, existing tolerance limits are compensated for and an exact right-angled downward kelung reached in the corner region 10 of component 2.
• a positive tolerance of the thickness 179 brings about a roll forming of the component 2 in the corner region 10 between the molding surface 36 of the tool 16 and the roller arrangement 42.
• the adjustment of the distance 134 of the molding surface 36 from the roller arrangement 42 is effected via the adjustment device 112, with which the link element 127 can be adjusted relative to the worktop 14 or to the roller arrangement 42.
• a reference dimension is formed by a central plane running perpendicular to the worktop 14, along which the roller arrangement 42 is adjusted, and a minimum diameter 182 of the double-conical roller arrangement 42 acting in the corner region 10.
• a spray nozzle 183 assigned to the clamping plate 175 is also provided, which is acted upon by a lubricant and coolant via a line 184 and thus lubricant and coolant, in particular to one, before the forming process Sloping surface of the clamping plate
• the cutting device 113 of the corner shaping device 4 is shown in detail.
• the fixed cutting element 157 is detachably fastened with an underside 186 running parallel to the worktop 14 at a distance 187 from the worktop 14.
• the cutting element 157 forms a spacer bar 185 that projects in the direction of the adjustable cutting element 158
• the distance 187 corresponds approximately to a thickness 189 of the adjustable cutting element 158, which is guided on the worktop 14 in a linearly adjustable manner and by means of the drive arrangement 160, e.g. a pressurized cylinder, is driven and forms the cutting edge 164 with the end face 168 and a top 190.
• the drive arrangement 160 e.g. a pressurized cylinder
• the cutting element 157 is provided on its end face 188 with a V-shaped cutout 191 facing the cutting element 158 and adapted to the corner region 10 of the component 2 to be cut.
• the adjustable cutting element 158 has the fixed the cutting element 157 and with the cutout 191 of the same shape and the end face surface 168 forming a nose-shaped projection 192.
• the cutout 191 is provided with an inner curve which is adapted to the component 2 in the corner region 10 and the projection 192 is provided with a corresponding outer curve.
• the opening of the component faces the adjustable cutting element 158 is placed thereon with the end faces 193 and the corner region 10 in the cutout 191 positioned manually. If the cutting element 158 is now adjusted with the drive arrangement 160 in the direction of the fixed cutting element 158, there is an exactly aligned cutting along the end faces 193 of the component 2 in the corner region 10, that is to say the projection 194 is removed.
• such a cutting device 113 cannot necessarily be built directly on the system 101, but can form an independent cutting device 113 that is separate from the system 101.
• FIG. 28 Another embodiment of the cutting device 11 is shown schematically in FIG. 28.
• the component 2 to be trimmed is placed on a base plate 195 with its opening and the side walls 8 projecting upwards.
• a slide arrangement 197 which is adjustable at right angles thereto by means of drive 196, is mounted.
• This slide arrangement 197 has a tool carrier 198 which supports the fixed cutting element 157 and the cutting element 158 which can be adjusted via the drive arrangement 160, the latter on the tool slide 198 in one
• the drive 196 of the tool carrier 198 feeds in the direction of an arrow 200 until the adjustable cutting element 158 with a lower side 201 comes to rest on the end faces 193 of the side walls 8.
• the underside 201 of the adjustable cutting element 158 is aligned with an upper side 202 of the fixed cutting element 157.
• the adjustable cutting element 158 is moved via the drive arrangement 160 in the direction of an arrow 203 and thus in the direction of the fixed cutting element 157 until the side wall 8 of the component 2 on the End face 188 of the fixed cutting element 157 comes to rest.
• the protrusion 194 formed during the corner forming is sheared exactly in alignment with the end faces 193 by the interaction of the cutting edges 163, 164 with the cutting elements 157, 158.
• the tool carrier 198 becomes by means of the drive 196 contrary to
• the direction of the arrow 200 is adjusted to an open position distant from the base plate 195, whereby the component 2 of the cutting device 113 can be removed.
• the course of the separation of the overhang 194 is achieved by the fact that support elements 205 which form straightening surfaces 204 are provided either on the worktop 14 or independently of this or the system 101, on which the component is placed with its end faces 193 of the side walls 8 and in its corner region 10 with the Projection 194 protrudes between the cutting elements 157, 158.
• the arrangement of the cutting elements 157, 158 is designed in such a way that the cutting edge 163 of the cutting element 157 and the cutting edge 164 of the cutting element 158 are arranged to run in the alignment surface 204 formed by the support elements 205.
• the protrusion 194 projecting over a height 206 of the side walls 8 is thus removed when the trimming process is carried out, i.e. by adjusting the adjustable cutting element 158, relative to the fixed cutting element 157, in exact alignment in order to achieve the offset-free height 206 of the side walls 8, also in the corner region 10.
• the roller 125 forming the roller arrangement 42 is rotatably mounted in bearings 207 of a mounting frame 208. So that becomes a
• Support frame 209 formed, which is adjustable in the guide elements 118 with the drive device 126 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.
• the changing device 121 has quick-closing elements 122, for example levers 123, in order to be able to carry out the exchange quickly and without using complex tools.
• a height 212 of the tool 16 or the circumferential molding surfaces 36 is greater than the height 206 of the side walls 8 of the component 2.
• the height 212 of the molding surfaces 36 is a measure of the height 206 of the side walls 8 plus an expected height 213 of the overhang 194 corresponds. This ensures during the reshaping of the corner area 10 that the protrusion 194 after the shaping by the rolling in any case lies flat in the area of the shaped surfaces 36 and is in no way drawn in on the underside of the tool 16, which would lead to jamming and the removal of the component 2 would complicate after reshaping the corner area 10.
• FIG. 29 shows a further embodiment of the roller arrangement 42 with the hold-down device 62, the same terms and reference numbers being used for components already contained in the previous figures.
• the guide device 107 arranged on the machine frame 104, e.g. two guide rods 220 spaced apart from one another and perpendicular to the worktop 14, a guide carriage 221 is adjustably mounted in the direction perpendicular to the worktop 14.
• a cantilever arm 222 arranged in the machine frame 104 or on a working arm 14 opposite and which is drive-connected to the guide slide 221 via a piston rod 223, with a pressure medium, e.g. Hydraulic oil, actuatable actuating cylinder 224.
• a pressure medium e.g. Hydraulic oil, actuatable actuating cylinder 224.
• other drives are also conceivable for driving the guide carriage 221, such as electrically operated spindle drives etc.
• This cassette 226 rotatably supports the roller 125 in side legs 227, 228 about the central axis 124 running parallel to the worktop 14.
• the side legs 227, 228 are spaced from the worktop 14 and connected to a base leg 229 running parallel thereto, which bears against a head plate 230 of the guide carriage 221 oriented parallel thereto, for transmitting the pressure force applied by the actuating cylinder 224 in the direction of the worktop 14 according to an arrow 231 the cassette 226 or roller 124 and a hold-down plate 232 of the hold-down device 62, which is also adjustable in the cassette 226.
• the hold-down plate 232 is guided via guide columns 233 in guide elements 234 arranged in the base leg 229, for example guide bushes 235, so as to be adjustable in the direction perpendicular to the work plate 14.
• the guide columns 233 are arranged between the hold-down plate 232 and the base leg 229, helical compression springs 236 of a spring arrangement 237, a maximum distance 238 from mutually facing surfaces of the base leg 229 and the hold-down plate 232 by means of a corresponding stop arrangement between the guide columns 233 and the base leg 229 is achieved.
• the hold-down device 62 with the hold-down plate 232 is arranged in the cassette 226 with respect to the roller 125 to such an extent that the end edges 181 of the hold-down plate 232 facing the V-shaped contour of the roller 125 by the distance 180, which is of the order 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 for forming in the corner region
• mold block 240 which is further adjustable and fixable with its mold surface 96 facing the roller 125 with respect to the inner contour of the roller 125 facing it, as already described in detail in the previous figures . It is also mentioned that the mold block 240 can be pivoted by 90 ° in a plane parallel to the worktop 14 with respect to a positioning pin 241 arranged in the geometric center of the mold block 240 and a corresponding design of the fastening arrangement.
• a preformed plate part 6, in which the side walls 8 are preformed, for example by a folding process, is to be formed in the corner region 10 this is placed on the mold block 240, the side walls 8 and the corner region 10 forming the mold surfaces 96 of the mold block 240 overlap.
• the drive or, for example, the actuating cylinder 224 is acted upon and the cassette 226 with the roller 125 and the holding-down device 62 is moved 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 .
• the spring arrangement 237 of the holding-down device 62 is compressed and the contact pressure is continuously increased until the roller 125, which is higher in relation to the holding-down surface 239 in its starting position, carries out the forming process in the corner region 10 of the plate part 6 which the irregularly preformed corner area 10 to the shaped surfaces 96 of the Form block 240 is pressed and so the rectangular position of the adjacent side surfaces 8 in the corner region 10 is reached.
• FIGS. 1 to 15; 16; 17, 18; 19; 20; 21a, 21b; 22, 23; 24, 25; 26, 27; 28 shown embodiments form the subject of independent solutions according to the invention.
• the tasks and solutions according to the invention in this regard can be found in the detailed descriptions of these figures.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Bending Of Plates, Rods, And Pipes (AREA)
• Finishing Walls (AREA)
• Shaping Of Tube Ends By Bending Or Straightening (AREA)
• Making Paper Articles (AREA)
• Moulds, Cores, Or Mandrels (AREA)

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• 2000
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• 2003
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