EP0176091A1 - Device and method for producing holes in profiled hollow bars made of synthetic material - Google Patents

Abstract

The device serves for producing holes in profiled hollow bars made of synthetic material or frames produced therefrom, in particular window or door frames. It has a supporting table (1) formed by a plate or a framework, with a positioning stop (9) for the alignment, necessary to produce the holes (24), of the workpiece (3) to be processed and is equipped with a tool movable relative to the supporting table (1) which creates the holes (24). In order to reduce the processing time of the workpiece during the production of the holes (24) without having to accept holes of reduced tear-out strength for the fastening screws, the tool is at least one punch (8) working without a die. <IMAGE>

Description

The invention relates to a device for producing holes in hollow plastic profile bars or frames made therefrom, in particular window or door frames, with a support table formed by a plate or a frame, with a positioning stop for aligning the holes required for making the holes machining workpiece and with a tool that is movable relative to the support table and that produces the holes.

A well known device of this type uses drills as tools. The workpiece, i.e. a plastic hollow profile rod or a frame made from it, is placed in the desired position on the support table held on to the positioning stop and tightened if necessary. Then the rotating drill is lowered, creating the hole. Drilling creates drilling chips that make up large quantities, particularly when there are a large number of holes. The holes are either drilled one after the other, the total machining time required for a workpiece being relatively long, or multi-spindle drilling units are used to produce several holes at the same time, so that the machining time is kept short, but the minimum hole spacing is relatively large , because the individual drilling tools require a design-related distance from each other. It is therefore often not possible with the multi-spindle drilling unit to produce all of the holes in a hole pattern at the same time because they are at a distance from one another which is less than the minimum hole spacing of the drilling unit. As a result, at least some holes have to be drilled one after the other, which is associated with the known disadvantages of the higher expenditure of time due to multiple positioning and drilling.

It is also known to punch or punch hollow profile bars made of metal. However, this procedure creates an interruption in the area of the lower edges of the hole, so that a hole deviating from an ideal cylindrical shape is produced. As a result, the pull-out forces for a fastening screw screwed into such a fastening hole having an interruption are smaller than for an ideal hole or a drilled hole. This disadvantage is compensated for in the case of hollow profile bars made of metal by the comparatively high strength values of the metal.

The invention is based on the object of improving a device of the type mentioned in such a way that the machining time of the workpiece when making the holes is reduced without the holes produced having reduced pull-out strength for fastening screws.

This object is achieved in that the tool is at least one punch that works without a matrix.

The time to make a single hole is less when punching than when drilling, where only a limited feed rate may be used during the production of the hole. In addition, punching in hollow plastic profile bars creates uninterrupted holes. The plastic is sufficiently elastic during a punching process to dodge in the vicinity of the hole and to return to this neighborhood of the hole without interruption after the punching process. In addition, it was also found that the plastic can be smeared, i.e. tends to flow or burr formation, which also contributes to achieving the desired pull-out strength or can even cause an increase because the engagement length of the screw in the plastic increases.

Considerable time is saved in the production of groups of holes if there are several punches that have a minimum hole spacing approximately equal to the plastic wall thickness. All holes can be made simultaneously, even for a very small minimum hole spacing, down to the plastic wall thickness. This minimum hole spacing must be present so that it does not fall below the hole depth or length, which would justify the risk that the wall hole separating two holes will tear when a fastening screw is stressed. When producing a group of holes with punches, it is important that the amount of residual material is much smaller than when drilling.

The punch or punches are assembled with a punch drive, which is releasably attached to the support table together with the positioning stop as an attachment unit. With such a configuration of the device, it is possible to easily remove it from the support table and e.g. to be exchanged for a drilling or milling device. This is necessary, for example, if a hole that cannot be produced by punching has to be produced in the vicinity of a hole or a group of holes, or if a drilling or milling process is necessary, the perforation device of which interferes when it is carried out. This also makes it possible to use the support table more universally or to integrate it in production processes that relate to different types of workpieces or in which the plastic hollow profile bars or the frames are further processed, e.g. a welding process.

In a preferred embodiment of the punching device, the punches protrude from the punch side of a punch holding plate and are secured against removal from the workpiece by a pressure plate, which in turn is supported by a holding plate which can be acted upon by a piston-cylinder drive, and all three plates are seated on guide bushings which are displaceable on guide columns of a stamp drive frame. This punching device is particularly suitable for a punch or a group of holes stamp exchangeable in the respective desired arrangement and to carry out tolerance-free, so that the holes can be made with the desired accuracy of their arrangement and dimensioning. The guide columns of the stamp drive frame connect a cylinder holding plate with a cover plate arranged between the stamp holding plate and a base plate to form a rigid frame frame, which is supported on the base plate or on the support table by a spacer which has the positioning stop and has space on the workpiece side for the arrangement of the workpiece . The rigid frame provides the guarantee for an exact guidance of the punches with secure fastening of the punch drive. The frame is held high enough by the spacer above the base plate or above the support table in order to be able to arrange the workpiece to be machined on the base plate or on the support table below the tool.

In a development of the invention, several punch groups are provided, each with a separate punch drive. It is thus possible to produce different hole patterns on a frame without having to lift the frame to another hole device or to replace or retrofit hole devices of a support table. In addition, if there are several punch groups, it is possible to process frames for right and left hinges better in the same way, namely without lifting the frame to another punching device or without changing or converting it. If there are four punch groups, you can use the punch groups to attach a corner bearing as well as a frame menlagers are produced, for right and left hinges, the frame on the support table only needs to be pushed back and forth. All punch groups are fixed with their rigid frame on a common cover plate, which rests centrally on the spacer, which ensures a simple construction, combined with an easy interchangeability of all punching devices.

In order to ensure that a workpiece has the desired position required for machining, the punching device has at least one positioning stop limit switch forming a punch drive lock, so that the punch drive can only be triggered when the workpiece is in the desired exact position.

In a further development of the invention, the device has a positioning slide which is adjustable parallel and / or vertically to a stop surface of the positioning stop and with which e.g. Teaching for e.g. Locking parts can be arranged on the frame in a simple manner without the frame having to be re-aligned. The orientation of the workpiece required for punching is therefore used.

Two punching or punching units are arranged at right angles to one another with their row of punching or punching tools and two such groups of units are arranged with more than the largest frame side length apart from one another on one side of the support table and its support surface and facing each other, if necessary each unit group on the same side of a roller table is arranged with an operator station located between them. The right-angled arrangement of the punch or perforation units is based on the right-angled design of the frame corners coordinated and enables the operator to bring a frame corner into the same stop position at all times, regardless of whether a group of holes or another group of holes at right angles to it should then be created. The punching tools are, for example, the well-known cutting drills or flow formers or the like working with the supply of heat. The arrangement of two unit groups at a distance from one another allows a frame to be moved between the two unit groups for machining, as a rule only relatively small displacements being required are to move the frame from a stop position in one unit group to a stop position in the other unit group. The arrangement of the unit groups on the same side of a roller table saves time and energy, particularly if the operator station is arranged between the unit groups.

However, it is also possible for a single group of units to be arranged symmetrically on one side of the support table and its support surface, an operator station being arranged on the opposite side of the support table, if necessary. In this case, only a single unit group of two punch or perforation units is required, with which all hole groups for corner and handlebar bearings of plastic frames can be produced for both the right-hand and left-hand stops. The prerequisite for this is that the hole groups for corner bearings and handlebar bearings are of identical design, or that the fittings to be fitted cover excess holes.

The invention also relates to a method for producing holes in hollow plastic profile bars or frames made therefrom, in particular door or window frames, in which the workpiece to be machined is placed on a support table and brought into its processing position at a positioning stop, after which the holes be generated with a tool moved relative to the support piece. In order to improve this known method, in which the holes are produced by drilling, the disadvantages mentioned at the outset having to be accepted, the known method is improved in that the holes are punched with punches. This method allows, in particular, the production of groups of holes with increased accuracy, since the tolerances given in each case with several processing steps cannot add up.

In particular, it is very favorable for the production of holes in frames if, prior to punching, a frame is arranged with its frame opening around the hole device on a support table and aligned with a surface adjacent to the frame opening on the positioning stop. The easy handling of the frame with several different positioning positions is particularly advantageous here. Since the dimensional specification or the distance of a hole or a group of holes is predominantly measured from an inner edge of the frame, frames of different profile dimensions or profile widths can be processed with the punching device without the positioning stop having to be exchanged or adjusted.

The punched holes, which are lowered during punching, are held down after the holes have been made and the perforated workpiece is held in position until position-dependent work has been carried out elsewhere on the workpiece. This saves the time that would otherwise be required for a second alignment process. In addition, tolerances that could be caused by a second alignment process are avoided. Depending on the positioning once achieved, automatic parts feeding and fast attachment of hardware components can be achieved or simplified. As a result of the punching device located within a frame, machining operations can be carried out from the outside that are not hindered by the punching device.

Further, it is advantageous to proceed if necessary with DIN-right and DIN-left stop hole groups of the Ecklagerbeschläge from the one device group and the hole groups of the _L enkerlagerbeschläge be produced from the other unit group, wherein a frame for producing its Ecklager- and its Handlebar bearing hole group between the unit groups on the support table is translationally shifted for one type of stop and under 180 ° rotation for the other type of stop, or that the only unit group for producing all corner bearing and handlebar bearing holes of a frame for DIN right and DIN left stop is used.

In the case of a window or door frame made of plastic hollow profile bars, with holes serving in particular for fastening fitting parts, it is advantageous if the holes are punched, since the punched holes meet the usual dimensional requirements and also hold fastening screws or the like sufficiently or even require increased pull-out forces.

• Fig. 1 eine Aufsicht auf einen mit einer erfindungsgemäßen Lochvorrichtung versehenen Auflagetisch,
• Fig. 2 den Schnitt AB der Fig. 1,
• Fig. 3 die Ansicht C der Fig. 2,
• Fig. 4 Lochgruppenanordnungen bei Blendrahmen für Linksanschlag eines Flügels,
• Fig. 5 eine schematische Darstellung des Arbeitsablaufs beim Herstellen von Löchern für die Befestigung eines Ecklagers und eines Lenkerlagers bei einem Rahmen mit DIN-Rechts-Anschlag,
• Fig. 6 eine der Fig. 5 weitgehend entsprechende Darstellung für die Fertigung an einem Rahmen mit DIN-Links-Anschlag und
• Fig. 7 die Anordnung eines Rahmens zum Herstellen von Löchern bei Verwendung einer einzigen Einheitengruppe von zwei Lochstempel- oder Bohreinheiten.

The invention is described with reference to an embodiment of the punching device shown in the drawing. It shows:

• 1 is a plan view of a support table provided with a punching device according to the invention,
• 2 shows the section AB of FIG. 1,
• 3 is the view C of FIG. 2,
• 4 perforated group arrangements for blind frames for the left stop of a wing,
• 5 is a schematic representation of the workflow in the production of holes for the attachment of a corner bearing and a handlebar bearing in a frame with a DIN right stop,
• Fig. 6 is a representation corresponding largely to FIG. 5 for the production on a frame with a DIN left stop and
• Fig. 7 shows the arrangement of a frame for making holes when using a single unit group of two punch or drilling units.

1, a punching device 0 with four punch units I to IV is arranged above a support table 1.

Fig. 2 shows that the four punch units I to IV on a deck common to all units I to IV plate 17 are arranged, which are supported by a spacer 7 on a base plate 6, which is embedded flush in the support table 1. Between the cover plate 17 and the base plate 6 or the support table 1 there is free space 20, in which, according to FIG. 2, a plastic hollow profile bar of a window frame or a workpiece 3 is inserted for processing. From Fig. 1 it can be seen that the workpiece 3 has an opening or an inner contour that exceeds the horizontal outer contour, so that the workpiece 3 or the frame with its opening on the punching device 0 placed on the support table 1 and on this in the respective processing positions can be pushed on one positioning stop 9 or on several positioning stops.

The positioning stopper 9 is located as shown in _FIGS. 2 on a plate 9 'which is arranged between the cover plate 17 and the spacer 7 in the special design of the perforating device. The stop 9 or the two stop surfaces 23 shown in FIG. 4 determine the exact position of the workpiece 3, z. B. the positioning position shown in Fig. With solid lines. The arrangement of the frame or workpiece 3 is carried out according to FIG. 2 so that only its surface 25 abuts the stop plate 9 'and the other frame surfaces are free from the spacer 7 or spaced apart. This results in an always exact arrangement of the punch 8 relative to the workpiece 3 via the dimension 26, which is always determined from the inner edge of the frame. For different dimensions 26 or distances of the punch 8 from the plate 9 ', this can be replaced or set.

The structure of the punching device can be seen in more detail in FIGS. 2, 3. The punching device 0 has several punching units I to IV, each with separate punch drives 2. A punch drive 2 essentially consists of a piston-cylinder drive 10 provided with compressed air connections 18, which is carried by a frame 5, which in turn is rigidly attached to the cover plate 17. The several stamp drives 2 common cover plate 17 rests on the stop plate 9 'or the spacer 7, which is centered on the base plate 6 via cylindrical pins 28. With a bore 29 penetrating the base plate 6, the spacer 7, the stop plate 9 and the cover plate 17, this assembly can be clamped together and / or attached to the support table 1.

The cover plate 17 has recesses 27 through which stamps 8 pass. Two stamp groups 29, 30 are shown, the stamps 8 of which are each held in the stamp holding plate 16. For this purpose, the stamps 8 have a head 31 which engages in a correspondingly shaped, not designated recess in the stamp holding plate 16, so that slipping through to the workpiece 3 is not possible. Above the stamp holding plate 16 there is a hardened pressure plate 15 with which the stamps 8 are acted upon when punching. This is itself driven by a holding plate 14 which is connected to a piston rod 32 of the piston cylinder drive 10. All three plates 14 to 16 are screwed together and sit on a guide bush 33, which is pushed in Fig. 3 against a spacer ring 13, so that between the punch holding plate 16 and the cover plate 17, the desired distance is present, which is based on the penetration depth of the punch 8 is matched to the workpiece 3. Each guide sleeve 33 is slidable on a guide column 12 which is at one end with the deck plate 17 and at the other end with a cylinder holding plate 11 is rigidly connected. The rigid frame 5 is formed, on the guide columns 12 of which the plates 14 to 16 are vertically displaceable.

The base plate 6 has a hole 34, protrudes in the vicinity of the spacer 7 by a Positionierungsanschlag- _G Conference button 22 which thereby locks the drive hole. The piston-cylinder drive 10 is not effective with such a lock despite the usual command. It is only possible to take effect when the workpiece 3 is in the correct position for punching and has actuated the button 22.

4 shows differently designed groups of holes, namely a group of holes 36 for a frame bearing at the upper corner of a window frame, the part 39 to be attached being shown in dashed lines. The holes 24 in the workpiece 3 or in the frame are made with the aid of the stamp group 30. The frame or handlebar bearing part 39 to be fastened requires six holes 24 of the same size, which are produced by the appropriately dimensioned punch ends 8 ', which are of different lengths to reduce the instantaneous punching force or to distribute the punching force over successive periods of time.

In the lower part of FIG. 4, a corner bracket 40 is shown in dashed lines, the holes 24 of which are made with the punch 8 of the punch group 29. Of the punch 8, only a few are provided with comparatively thin punch ends 8 ', which produce fastening holes for screw engagement. The holes 8, which are comparatively thick at their ends, are used to produce pin engagement holes.

The punching units I to IV serve to simplify the production of several groups of holes on a frame 3. The punching unit I produces the holes 24 for fastening a frame bearing part of a frame for a left-handed stop. The punch unit II can make corresponding holes for a frame for a right-hand stop. If the workpiece 3 is pushed into the dashed position 3 'against the stop surfaces 23' of the stop plate 9 'shown in FIG. 4 below, the holes 24 for attaching a corner bearing for a left stop can be made, while corresponding holes for a through the punch unit IV Corner bearings for right hinges are manufactured.

It is important for the invention that the positioning of the workpiece 3 on the stops 9 or on the stop plate 9 'is used to carry out further positioning-dependent work on the workpiece 3, that is from the outside, that is to say from the outside of the support table 1 and through the punching device is easily accessible undisturbed. For this purpose, the punch 8 is held in engagement with the workpiece 3 after punching, so that the positioning position is guaranteed for other work. Loads occurring during this work can be easily taken over by the punch 8. For example, operations are possible in which an automatic parts feed takes place, e.g. B. the automatic feeding of the upper frame bearing parts, while the holes 24 are made for the corner bearing attachment. Plastering, welding or additional drilling work is also possible, depending on the location of holes previously made.

In addition, the punching device 0 has a positioning slide 40 which, for. B. from one on the Cover plate 17 in only one direction is longitudinally displaceable guide rod 40 'and a holder 40 "on which a stop gauge 42 is arranged, for example for locking parts of the frame. The distance between such locking parts is usually measured starting from the frame surface 43, which on the horizontal stop surface 23 of the stop plate 9 'and is therefore defined The positioned stop jig 42 receives, for example, the locking parts and these can be fastened to the right frame leg 44.

To ensure the positioning position required for punching, the punching device can also be designed so that a clamping process takes place with a special clamping element, so that the punch is relieved. This tensioning element can be controlled as a function of the actuation state of the piston-cylinder drive 10.

With a suitable punching device it is also possible to punch horizontally, for example dowel fixing holes or water drainage slots can be made.

Ig according _F. 5, the support table 1 is designed as a roller table. A plurality of conveyor rollers 45 allow the workpiece 3 or the frame to be moved effortlessly in the direction of the arrows 46. In the conveying direction in front of the device according to the invention, a welding system 48 is arranged on the support table 1, with which the individual frame posts are welded together in a manner known per se to form the workpiece 3 or the frame. On the side 47 of the support opposite the welding system 48 tables 1 are punch groups III, IV and I, II existing unit groups 49, 50 arranged at a distance from each other that is greater than the largest frame side length of the workpiece 3. An operator station 51 is arranged between the two unit groups 49, 50.

The punching units III, IV and I, II are each arranged at right angles to one another and have the same functions as the corresponding punching units of FIG. 1. Accordingly, the corner bearing perforation will take place through the unit group 49, while the handlebar bearing perforation will take place through the unit group 50. This is shown in more detail in Fig. 5 bottom left. Here the workpiece 3 lies on two stops 52, on which it is connected with a e.g. pneumatically operated clamping unit 53 is held in a predetermined position. The horizontal row of holes 24 is used to fasten a corner bearing for a DIN right stop, while the vertical group 37 of holes 24 is used for fastening a corner bearing for a DIN left stop. Accordingly, the illustration in FIG. 5 shows, at the bottom right, a horizontal row of holes 24 for fastening a handlebar bearing for a DIN right stop, while the vertical group 36 of holes 24 serves for fastening a handlebar bearing for a DIN left stop.

So that the groups of holes can each be produced at the correct location on the workpiece 3, it must be arranged and moved either according to FIG. 5 or according to FIG. 6. This is how it is done when machining a DIN right workpiece 3 conditions that the frame coming from the welding system 48 is first arranged according to the position shown in solid lines in FIG. 5. After the adjustment of the workpiece 3, the punch unit IV or possibly a drilling unit is actuated. The workpiece 3 is then moved in the direction of the arrow 53 until it is in the position shown in dashed lines in FIG. 5, that is to say in the correct assignment to the unit groups 50. The punching unit II is then actuated by this and the punching unit shown in FIG 5. Horizontal group of holes 24 shown at the bottom left. When processing a DIN-left frame and the workpiece 3 in FIG. 6 is first causes the position of the workpiece 3 shown by solid lines and made 37 by operating the _L hole group ochs stamp unit III. Thereafter, the group of holes 36 is not more stamp unit I _L shifted with the workpiece 3 to the right and at the same time pivoted through 180 ° on the support table 1, so that it assumes the dashed upright position for preparing.

In this method, the workpiece 3 does not need to be lifted, but can be brought into the required processing position by simply moving it and rotating it as necessary. The workpiece 3 also does not need to be raised in order to be brought into the working area of the device according to the invention. The same applies to the device shown in FIG. 7, which manages with a single unit group 54 in order to produce the hole groups 36, 37 for corner bearing and handlebar bearing attachment of a DIN left frame, but also the corresponding hole groups for DIN right-hinged. For this purpose, on one side 47 of the support table 1 with its support surface 1 'there is a unit group 54, as described above and therefore only indicated by dashed lines, with two punch V, VI or drilling units. These units V, VI are designed, for example, with identical punch or drill arrangements in order to achieve identical hole patterns, or known measures are taken to achieve different hole patterns.

The alignment of the workpiece 3 in FIG. 7 takes place analogously to the alignment in accordance with FIGS. 5, 6 with a clamping unit, not shown, which presses the workpiece 3 against the stops 52. These stops 52 can be retractable or are extended at the same time as the clamping unit 53 is actuated. In this case, the operator station 51 is arranged on the opposite side 55 of the support table 1, from which the workpiece 3 can be pushed sufficiently precisely into the clamping area of the clamping unit 53 and the stops 52 without difficulty. This design of the device also has the advantage that the operator cannot or only with difficulty intervene in the area of the punching device from the operating position 51, so that the risk of accidents is correspondingly reduced.

If the hole patterns for the handlebar bearing and the corner bearing are the same, the device shown in FIGS. 5, 6 can also be simplified by, for example, only providing the unit group 50 around both the handlebar and corner bearing holes for DIN right as well as for DIN left stop by punching or drilling. The frame 3 is expediently first moved as shown in FIG. 5 and processed with the punch unit II, then rotated 90 ° counterclockwise in the plane of the illustration and processed with the punch unit I.

Instead of the punches or drills, flow formers acting with heat can also be used.

Claims (13)

1.Device for producing holes in plastic hollow profile bars or frames made therefrom, in particular window or door frames, with a support table formed by a plate or a frame, with a positioning stop for aligning the workpiece to be machined, which is required for the production of the holes, and with a tool which can move the holes and which can move relative to the support table, characterized in that the tool is at least one punch (8) which operates without a die. 2. Apparatus according to claim 1, characterized in that a plurality of punch (8) are present, which have a minimum hole spacing approximately corresponding to the plastic wall thickness. 3. Apparatus according to claim 1 or 2, characterized in that the or the punch (8) with a punch drive (2) are assembled, which is releasably attached to the positioning table (1) together with the positioning stop (9) as an attachment unit. 4. Device according to one of claims 1 to 3, characterized in that the punch (8) on the hole side protrude from a punch holding plate (16) and are secured against removal from the workpiece (3) away by a pressure plate (15), which in turn by a with a piston-cylinder drive (10) acted upon holding plate (14) is supported and that all three plates are seated on guide bushes (33) which are displaceable on guide columns (12) of a stamp drive frame (4) and / or that the guide columns (12) of the stamp drive frame (4) connect a cylinder holding plate (11) with a cover plate (17) arranged between the stamp holding plate (16) and a base plate (6) to form a rigid frame (5), which has a positioning stop (9) on the workpiece side of the cover plate (17) Free space (20) for arranging the workpiece (3) spacer (7) is supported on the base plate (6) or on the support table (1). 5. Device according to one of claims 1 to 4, characterized in that several punch units (I to IV), each with a separate punch drive (2) are present and / or that all punch units (I to IV) with their rigid frame (5) are attached to a common cover plate (17) which rests centrally on the spacer (7). 6. Device according to one of claims 1 to 5, characterized in that it has at least one positioning stop limit switch (22) forming a hole drive lock. 7. Device according to one of claims 1 to 6, characterized in that it has a to a stop surface (23) of the positioning stop (9) parallel and / or vertically adjustable positioning slide (40). 8. Device according to one of claims 1 to 7, characterized in that two Lochstempel- (III, IV; I, II) or _L ochungseinheiten with its row-wise punches (8) or Lochungswerkzeugen are arranged perpendicular to each other and that two such unit groups ( 49, 50) with more than the greatest length of the frame side apart from one another on one side (47) of the support table (1) and its support surface and facing one another, if necessary each unit group (49, 50) on the same side (47) of a roller table with between operating position (51) located there, or that a single unit group (54) is present on one side (47) of the support table (1) and its support surface (1 ') and, if necessary, is arranged symmetrically facing, if necessary on the opposite side (55) of the support table (1) an operator station (51) is arranged. 9. Method of making holes in plastic hollow profile bars or made therefrom th frame, in particular door or window frame, in which the workpiece to be machined is placed on a support table and brought into its processing position at a positioning stop, after which the holes are produced with a tool moved relative to the support table, characterized in that the holes (24 ) are punched with punches (8). 10. The method according to claim 9, characterized in that a frame (3) before punching with its frame opening around the punching device (I to IV) around a support table (1) and with a frame opening adjacent surface (25) on the Positioning stop (9) is aligned. 11. The method according to claim 9 or 10, characterized in that the punched punch (8) lowered during punching are held down after the holes (24) have been made and the perforated workpiece (3) is held in position until another part of the workpiece ( 3) Position-dependent work has been carried out. 12. The method of claim 9 or 11, characterized in that the necessary with DIN-right and DIN-left stopper _L ochgruppen (eg 37) of the Ecklagerbeschläge by a unit group (49) and the hole groups (eg 36) of the arm bearing fittings from the other unit group (50) are produced, with a frame (workpiece 3) for producing its corner bearing and its link bearing group (36, 37) between the unit groups (49, 50) on the support table (1) translationally in one type of stop and under 180 ° rotation in the another stop type is moved, or that a single unit group (54) is used to produce all the corner bearing and link bearing holes (24) of a frame (workpiece 3) for DIN right and DIN left stop. 13. Window or door frame made of plastic hollow profile bars, with holes serving in particular for fastening fitting parts, characterized in that the holes (24) are punched.

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