DE19813261B4 - Method and device for fastening a turn / tilt fitting - Google Patents

Abstract

Method for fastening a turn / tilt fitting in the rebate groove of a door or window sash with the following steps:
Cutting the fittings with a cutting device to the required length,
- Inserting the fittings in the rabbet grooves of the resting on a worktable wing;
- Fixing the fitting parts in the rabbets;
- then screwing the fitting parts by means of an automatically positionable screwing with automatic screw,
characterized in that for cutting, inserting and fixing the fitting parts of the wing is placed on a first work table and then placed on a second, additional work table for carrying out the automatic screwing and clamped in a predetermined position.

Description

The The invention relates to a method for attaching a turn / tilt fitting in the rabbet groove of a door or window sash according to the generic term of claim 1 and an apparatus for performing this Process.

swing- and tiltable wings of doors or windows are at their outside lying folding surface, which faces the inwardly directed rebate surface of the frame, with turn / tilt fittings Mistake. The turn / tilt fittings are inserted in standardized grooves, so-called Euronuts, in the Falzfläche and exist from a scissors cuff, over a gearbox with the door or window handle is connected, from push rods and Eckumlenkungen, which the over the door or window handle initiated movements in the corner areas of the Transferred wing, and from a cover cuff, which the outer cover of the turn / tilt fitting forms. The scissors cuff and the push rods and the cover cuff are depending on the size of the wing different lengths separated (cut to length). This usually happens with a fitting punch, which to each other has movable cutting, which the fitting parts by a clean cut to the desired Bring length.

Then be the fittings are inserted into the fitting groove and fixed there. In general are used to fix some screws through screw holes of the Fittings screwed into the groove bottom of the fitting groove. alternative Fixing claws are known, which are pressed into the fitting groove and hold the fittings there.

The final Attachment of the turn / tilt fitting in the fitting groove is carried out by Attaching a variety of mounting screws, which screw holes in the fittings penetrate along the longitudinal centerline the fittings are provided.

In modern, semi-automatic wing stop stations For screwing fully automatic screwing tools are provided, which by means of a linear guide along the long side a work table can be positioned by a numerically controlled drive are. The screwing tools are guided on the linear guide such that the screw axis lies in the median plane of the fitting groove.

The wing are placed on the work table, with the manually cut to length and provided in the fitting groove fixed fittings and before the automatic tightening tightened in a predetermined position. In the control program for The automatic screwing tool are the exact screwing positions the fastening screws stored so that the screwing fully automatic can be done. By automatically tightening the turn / tilt fittings can be the time required for facing the fitting considerably reduce manual screwing.

Such a method is z. B. from the document DE 44 17 818 A1 known. Here, the application of the respective connecting elements, which form the fittings, step by step by a person. This prepares the fitting parts, taking into account any wing format changes and hardware system changes. The person searches out the fitting parts fitting and performs possibly required length adjustment. Fixing by screwing is done automatically with the help of a screw unit with automatic screw feed. The cycle time is sufficient for a serial screw, so that a single screw is provided to reduce the equipment cost, which is designed to be displaceable parallel to the edge of the wing opposite it. In a first step, the person places the fitting part on a first spar of the wing. Due to the fitting in the stepped Flügelfalzumfangsnut there is no risk that the applied, but not screw-mounted fitting part falls out. Subsequently, the wing is turned 90 °. Now, the screw fastening of the fitting takes place through the screw, what this successively the intended Einschraubpositionen anfährt and there screw the screws into the connecting element and the groove bottom. At the same time, the person places further prepared fittings on a second spar of the wing. Subsequently, the wing is again rotated by 90 °. Now fastened the screw the other fitting parts the second spar of the wing. If necessary, an additional fitting part is applied to a further spar of the wing in at least one further step and screwed by 90 ° after further rotation by the person.

The book REFA, "methodology of work study", ISBN 3-446-14234-7, 7th edition, 1984, pp. 113-120, can be found general information about division of labor and art division, in which a work order is distributed to several employees , The publication US 5,022,143 In another manufacturing method, namely the glazing of a sash, the result of a division of a manufacturing process on a plurality of processing stations.

The object of the invention is to provide a method and a method suitable for carrying out the method To provide device which allows a further reduction of the time required for the fitting mounting.

These Task is according to the invention with respect to the method the entirety of the features of claim 1 solved.

To the Cut, Insert and fixing the fittings, the wing is placed on a first worktable hung up. Subsequently the wing will open a second work table to carry out the automatic screwing put on and tightened in a predetermined position.

By the division of manual operations (cut to length, insert and fix) on the one hand and fully automatic operations (automatic screwing) on the other hand it is on two working tables during the fully automatic screwing possible on the second work table, on the first work table in the next wing, the fittings manually cut to length, insert and to fix.

Of the first work table must be with all for the manual operations be provided necessary tools. These are essentially the fitting punch for cutting to length the fitting parts and a tool for fixing the fittings. If the fitting parts by some screwing in the fitting groove fixed, must one manually displaceable screwing be provided. This should be on a longitudinal guide like that guided be that the Screw axis runs in the middle of the fitting groove. A skilled worker can handle this manual screwing tool, which preferably also via a automatic screw feeder has, at high speed attach the fixing screws.

To performing the manual activities becomes the wing transferred to the automatic processing table and there in the predetermined Position clamped. The worker just has to pay attention that for the edited Wing that correct control program for the automatic screwing tool is selected. During the automatic screwing Can he have a second wing provided with the turn / tilt fitting.

It is apparent that at the method according to the invention additional implements needed. It is an additional one Provide work table. For fixing the fittings and the subsequent one Must screw each separate tools may be provided, so that in the case of fixing by screwing two screwing tools instead of one single must be present. By However, rationalization of fitting assembly results in savings in personnel costs and greater returns through shorter Cycle times, so that quickly recoup the additional investment.

The Determine the wing takes place in the predetermined position on the second work table preferably by pressing against two mutually perpendicular stop strips, against which abut two mutually perpendicular edges of the wing. The pressing against This stop bars is preferably also automatically by at least one z. B. pneumatically operated pusher. The pressure stroke of the Pusher can then triggered be when the wing by manual pressing activated by the worker two contact switches near the stop bars.

One Another mechanically moving pusher should be the wing of Press up against the plane of the workbench for automatic screwing. These press of the grand piano to the level of the work table ensures that the automatic Wrench reliable the screw holes provided in the fittings hits.

Preferably becomes the method according to the invention at one of welded Plastic profiles used existing wings, with the plastic profiles of the grand piano at the same time the framework for a door- or glass pane. In this case, this can be the two work tables comprehensive manufacturing center continues to use a plastic welding machine and a plastering machine. The plastic welding machine has usually two welding heads, which the corner welds effect the plastic profiles on two corners of the wing simultaneously. The plastering machine covers a tensioning device which grips a wing corner and by means of an automatically (numerically) controlled milling head the welds in this Corner plastered.

The Integration of the machining method according to the invention into a machining center for complete wing making it allows a worker Completely welded and with the turn / tilt fittings provided wings to produce with a very high number of cycles.

The device according to the invention comprises the separating device (fitting punch) and the fastening tool for fixing the fitting parts inserted in the fitting groove. If the fitting parts are fixed by fixing screws, this tool is to be designed as a manually operable screwing tool with automatic screw feed. For other fixative (Fixierkrallen), the appropriate tools for introducing these Fixierkrallen in the fitting groove before be seen. The aforementioned tools are arranged according to the invention on a first work table. The second work table comprises the fully automatic screwing tool and the clamping device for clamping the wing in the predetermined position.

The both work desks need not necessarily spatially be separated from each other. You can also be arranged close to each other next to each other (eg over the corner). You can also to form a coherent working surface be connected to each other. In this case, eliminating the lifting of the wing the worker to spend on the second work table.

Further Benefits The invention will become apparent from the dependent claims and from the following Drawing description. The drawings show in:

1 the top view of a machining center alone for the attachment of a turn / tilt fitting and

2 the top view of a machining center for complete wing production.

In 1 is a worker 1 to recognize the between two work tables 2 . 3 stands. Next to the worker are sections of a conveyor belt 4 to recognize, with which the wings to be processed are fed to the machining center and transported away. At the first editing table 2 is on a linear guide 5 a manually movable screwing tool 6 and a fitting punch (not shown). With the fitting punch, the fittings are replaced by the worker 1 brought to the correct length, which he then in the fitting groove of the first work table 2 lying wing 7 inserted. Then the worker straightens 1 the manually movable screwing tool 6 on screw holes in the turn / tilt fitting and turns screws for fixing the fitting in the fitting groove.

The wing 7 with the fixed turn / tilt fitting is then used by the worker 1 on the second work table 3 placed and pushed into a corner (in the drawing at the top right), in the stop strips (not shown) are arranged at right angles to each other. In the vicinity of the stop bars contact switches are arranged so that when creating the wing 7 against the stop strips a pneumatic pusher (not shown) the wing 7 firmly against the stop strips in the corner area of the work table 3 suppressed. A pusher acting from above (also not shown) presses the wing 7 to the level of the workbench 3 ,

Parallel to the longitudinal edge of the work table 3 is another linear guide 5 arranged on a powered by a stepper motor or a drive spindle in the longitudinal direction fully automatic screwing 8th is guided. In the data memory of the control device of the fully automatic screwing the screw positions are stored at which screw holes are provided in the turn / tilt fitting. When changing the dimensions of the wings to be machined, the data set associated with the respective wing shape must be selected. This selection can be made manually or carried out by an automatic reading device connected to the control device, which identifies the respective wing on the basis of an identification carrier (eg barcode label) attached to the wing.

While the screw connection along the parallel to the linear guide 5 of the second processing table 3 lying profile of the wing 7 done, the worker can 1 another, on the first work table 1 resting wings 7 provided with the fitting parts. This process is interrupted twice, since the screw connection of the turn / tilt fitting on the second work table 3 along three mutually perpendicular legs of the wing 7 must be done and the wing 7 must be rotated and re-tightened for processing the different legs. Alternatively, automatic screwing tools could be used, which can be moved to the screwing of several mutually perpendicular leg of the wing.

The 2 shows a complete wing manufacturing center, in which next to the two work tables 2 and 3 a two-head welding machine 9 and a plastering machine 10 are provided for automatic plastering of the welds. Due to the possibility of equipping a grand piano with fittings on the first worktable 2 while on the second work table 3 the fully automatic screwing is done, the workflow at this manufacturing center can be built such that a worker 1 with high cycle rates and short life of the machines of the individual processing stations and low waiting times of the worker can weld finished wings made of plastic profiles and fitted with turn / tilt fittings.

1

worker

2

first worktable

3

second worktable

4

conveyor belt

5

conveyor belt

5

linear guide

6

manual Wrench

7

wing

8th

fully automatic Wrench

9

Two-head welding machine

10

plastering machine

Claims (7)

Method for fastening a turn / tilt fitting in the rebate groove of a door or window sash with the following steps: - cutting the fitting parts to the required length with a separating device, - inserting the fitting parts into the rebate grooves of the sash resting on a worktable; - Fixing the fitting parts in the rabbets; - Subsequently tightening the fitting parts by means of an automatically positionable screwing with automatic screw, characterized in that for cutting, inserting and fixing the fittings of the wing is placed on a first work table and then placed on a second, additional work table for carrying out the automatic screwing and in is clamped to a predetermined position. Method according to claim 1, characterized in that that this Spend the wing in the predetermined position by pressing against each other right-angled stop strips of the second work table takes place. Method according to claim 1 or 2, characterized that at least a mechanically movable pusher the wing press against the stop strips. Method according to one of the preceding claims, characterized characterized in that Tightening the wing by pressing a mechanically and preferably pneumatically driven pusher takes place, the on the surface of the wing resting on the second work table. Method according to one of the preceding claims, wherein the wing made of welded plastic profiles consists, characterized in that the wing first in a plastic welding machine made of straight plastic profiles welded together and then to Plastering the welds with his welded Corners inserted into a plastering machine and there by means of a clamping device is tightened, with an automatically controlled milling head the Plastered welds, before the fittings inserted into the rabbet groove become. Device for fastening a turn / tilt fitting in the rabbet groove of a door or window sash according to one of the preceding claims, with a separator for cutting to length the fitting parts in the necessary length, a fastening tool for fixing in the fitting groove of resting on a work table wing pasted Fitting parts and an automatically positionable screwing tool with automatic screw feed to tighten the fittings, thereby characterized in that they a first work table for placing the wing, on which the separating device and the fastening tool are arranged, and that they have a second worktable for laying the wing comprises, on which the automatic positionable screwing tool and a clamping device for Clamping the wing are arranged in a predetermined position. Device according to claim 6, characterized in that that the two work tables to form a contiguous work surface with each other are connected.