DE8500546U1 - Cross bar milling machine for window bars - Google Patents

Description

Wörinann, Werner, Westbeverner Str. Ό ,, 4412 Ostbevern

"Cross bar milling machine for window bars"

The innovation relates to a cross bar router for window bars according to the generic term of the main claim

Today, cross bars are again a frequently used decoration in window construction, their manufacture currently require a high level of manual effort.

The two profiles to be connected, regardless of whether they are made of wood or plastic, must be provided with miter grooves provided in the legs of the profile and also the middle web of one profile must be on its rear side and the middle web of the other cooperating profile with one on its front provided, so-called transverse groove. The two types of grooves, i.e. the The miter groove and the transverse groove must be coordinated and these grooves must also be the two profiles to be connected to one another also with regard to the two profiles be coordinated.

If the previously known mechanical aids are used, the procedure is such that a commercially available Hand milling machine is provided, the milling head corresponds to the miter groove. The milling tool is carried by a carrier and the one to be machined

Workpiece clamped in a workpiece carrier

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and then by moving the workpiece carrier Milled out the first miter groove opposite the milling head. Then the workpiece must be placed on the Workpiece carriers are rotated and the second Miter groove must be made, which already shows that great attention is required is to the two in the same Uprkstürk hprgpstelItpn Gphrungsnuten g ρ η a υ fleeing to be attached to each other. The transverse groove must then be cut in a third operation and here, too, there is great craftsmanship Skill required to locate the transverse groove now correct for the two produced To attach miter grooves.

The same operations must be carried out on the second rung part, with the first Rung part the transverse groove to the front and, in the case of the second rung part, the transverse groove to the rear is directed.

The innovation is based on the task of creating a cross-bar milling machine with the in one Profile all the necessary grooves in one operation can be carried out, the workpiece no longer has to be rotated, so that it is ensured that the grooves are exactly on one another are matched.

This is the task underlying the innovation solved by the teaching of the main claim.

Advantageous refinements are set out in the subclaims explained.

With the renovation according to the facility, it is now possible, the workpiece on the workpiece carrier or tighten the clamping device and then the workpiece carrier or the clamping device moved in the direction of the two mutually aligned milling heads, which are now the two cut the desired miter grooves. Here, of course, the respective requirements corresponding milling heads are used in the milling tools. After going through the two interacting milling heads can now the workpiece - without being changed in its position - cut to a vertical are performed, which is also carried by the support frame of the cross-bar milling machine, so that now this vertical cutter, which is used as a saw or Milling machine can be designed to cut the desired transverse groove. As the three tools on the support frame are fixed to each other, is always a correct assignment of the individual grooves guaranteed, in particular by the fact that the Workpiece no longer has to be moved between one or the other milling pass.

The fact that a support frame is made available, in which the usual in every carpenter's workshop Tools can be used, an inexpensive tool is created that with high precision, this also makes work considerably easier he brings.

An exemplary embodiment of the innovation is explained below with reference to the drawing. The drawing shows in
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Fig. 1, relatively schematically, the cross bars

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milling machine and in

Fig. 2 in an exploded view of the two bar profiles to be connected to each other to illustrate the necessary for the connection

turn grooves.

In Fig. 1, 1 and 2 designate two carriers, which in a »not shown in the drawing Support frame are arranged. Furthermore, a workpiece carrier 3 is carried by the support frame, which essentially has a workpiece stop 4, of the recesses 5 and 6, which have the desired profile shape, which are cut out should correspond. With the workpiece stop 4 is a clamping device 7 combined, which has two clamping jaws 8 and 9, with which the workpiece can be set on the workpiece stop 4.

The workpiece stop and thus the clamping device 7 can slide like a slide on the workpiece carrier be shifted, for example with activation the guides recognizable in the drawing and 11.

The carriers 1 and 2 each carry a milling tool 12 and 14, which each has a milling head 15 and 16, which are arranged opposite one another are, wherein the milling head 15 is a workpiece carrier plate 17 traverses, on which the workpiece fixed in the clamping device 7 move can.

With 18 is in the illustrated embodiment

game shown as a vertical cutter a saw, a milling cutter is also used at this point which can be moved up and down if necessary.

The saw 18 can, as the drawing shows, can be adjusted in the horizontal direction and thus adjusted to the desired cutting depth will.

While at 19 and 20 the setting devices for the height of the milling heads 15 and 16 is shown, the stops and adjustment devices to adjust the cutting depth of the saw 18 For reasons of clarity in the drawing not shown, but corresponding stops can of course be provided.

In Fig. 2 there are two to be fitted into one another Bar profiles shown. Here is the respective The transverse groove is denoted by 20 and 21, while the so-called miter groove is denoted by 22 and 23, respectively is designated. In the illustrated embodiment according to FIG. 2, the bar profiles Legs 24 and 25, the web connecting the legs being denoted by 26. the Miter grooves 22 and 23 are cut out in the legs 24 and 25, while the Transverse groove 20 or 21 on the front or back of the web 26 is cut.

The way of working with the new facility is as follows:

The rung profile to be processed is via the Clamping jaws 8 and 9 set on workpiece stop 4 and clamped. Then the tensioning device

device 7 with the clamped workpiece between the opposing milling heads 15 and 16 and thereby cut out the respective desired miter grooves 22 and 23, respectively. By Continuing the clamping device 7 can then Saw 18 take effect, which produces the desired cut for the transverse groove 20 and 21, respectively.

Since during the creation of the three desired grooves a change in the workpiece with regard to its location to the milling or cutting tools does not take place, it is ensured that the exactly three grooves required in a workpiece appropriate and intended in their position to each other getting produced. The grooves to be made in the next workpiece are again with regard to their position in relation to the workpiece is precisely oriented towards one another and the fitting of the both rungs can be done without any problems, then only the rungs on the desired End lengths need to be cut.

Claims (1)

"Cross bar milling machine for window bars" Protection claims: 10 20th Kr "jzsprossenfrase for window bars with a horizontally displaceable workpiece carrier, with a clamping device for the workpiece and a held by a carrier, adjustable in its vertical position milling tool, the rotating cutter head with its rotational axis perpendicular to the plane of the workpiece carrier is, gekennzei characterized chnt that two Milling tools (12, 14) are provided opposite one another in a support frame and a vertical cutter (18) is also carried by the support frame, the cutting plane of which is aligned with the axis of the two milling heads (15, 16) in the feed direction of the clamping device (7 ) is arranged behind the two milling heads (15, 16). Cross-bar milling machine according to claim 1, dadurc h gekennze i chnet that the height of the two milling tools (12, 14) can be adjusted independently of one another. 3. Cross-bar milling machine according to claim 1, characterized in that the vertical cutter is designed as a saw (18) which is adjustable in its distance from the milling heads (15, 16) of the milling tools (12, 14). 10 4. Kreuzsp-rossenfase according to one or more of the preceding claims, characterized in that the clamping device (7) consists of a workpiece stop (4) which is adapted to the profile of the milling heads Recesses (5, 6) is provided and has two clamping jaws (8, 9) with which the Workpiece can be fixed in contact with the workpiece stop (4), the two Clamping jaws (8, 9) on the side of the working area rich of the milling heads (15, 16) are provided. 5. Cross bar milling machine according to one or more of the preceding claims, characterized in that Kennzei chnet that the milling tools (12, 14) are formed by commercially available hand-held milling machines that can be clamped in the carrier of the support frame.
30th 6. Crossbar milling machine according to one or more of the preceding claims, marked by a workpiece carrier plate (17) in the area of the interacting milling heads (15, 16).