DE7222996U - Device for measuring curved, rod-shaped or tubular) material - Google Patents

Description

Daimler-Benz Aktiengeseilsr-baft Daim

Stuttgart-Untertürkheim, May 16, 1974

/ ^ Device for measuring curved, rod-shaped or tubular! Material "~)

The innovation relates to a device for measuring of bent, rod-shaped or tubular material, such as Compressed air lines of commercial vehicles, whereby by reshaping a sample line made e.g. on the basis of a model a second line is bent and the feeds, bending and possibly occurring during the bending process Angle of rotation can be detected.

In practice it often happens that rod-shaped or tubular Material - adapted to local conditions - has to be moved from one place to another. That's the way it is E.g. in commercial vehicles it is necessary to lay fuel and brake lines, mostly one in different levels located, twisted course. Since it would be extremely time consuming «to constructively fix the shape of such pipes gen, one finds d-sren form by using a vehicle or a sample of a vehicle model is bent. Bs it is now necessary to measure this sample piece so that values can be used for the mechanical production of the pipes in large-scale production be won.

As mentioned at the beginning, this measurement is expediently carried out in such a way that, by reshaping an e.g.

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a second line is bent using a model line, and that the line is bent during the bending process Occurring feeds, bending and possibly twisting angles can be detected.

It is the task of the innovation to create a device which allows the data obtained to be recorded methodically so that they can be used to produce a bending program can be.

Therefore, a device is proposed that, according to the innovation, be horizontal along at least one length scale slidable, provided with an angular division and a rotatable clamping device for receiving the material to be bent tailstock is provided, wherein in the area of the free At the end of the material to be bent, a roller lying in the pivot axis of a bending device and coaxially closed this can be arranged a further roller with a clamping device for receiving the sample.

It would also be possible to provide, in addition to a length of the material to be bent, stretched for the length of the material to be bent, a second measure which is used to determine the respective individual feed and which would have to be set to "zero" before the start of each feed.

So that material with different external dimensions is bent and can be provided with different bending radii, it is useful if the rollers are interchangeable.

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In a preferred exemplary embodiment of the innovation, the angular division serving to determine the bending angle is to compensate for the spring deflection of the material to be bent adjustable.

The subject of the innovation will be based on an in the embodiment shown in the accompanying drawing will be explained in more detail. Show in the drawing

Fig. 1 is a plan view of a renewal

gesiäß Vjraseß- and bending device and

FIG. 2 shows a side view of the operating side of the device according to FIG. 1.

On © ins = Uatsrgsstsll I with sir.ea bed-like structure 2 is a tailstock 3 along a length scale 4 horizontally displaceable. The tailstock 3 has in addition to a rotatable Clamping device 5 also has an angular graduation 6 that detects the angle of rotation. At the end of the bed-like structure 2 is one in the pivot axis 7 of a bending device δ lying roller 9 and coaxially to this a further roller 10 arranged with a clamping device 11, not shown, for receiving the sample. To determine the At the bending angle, an angular graduation 12 cooperating with the bending device 8 is attached, it being possible for this to be adjusted to compensate for the spring deflection of the material to be bent.

The handling of the device will be explained briefly below, it should also be pointed out that both the feed, bending and possibly twisting movements as well as the clamping movements can be carried out manually or with assistance.

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In the latter case, it is advisable to arrange the necessary operating elements in the area of the bending device 8. The workflow is as follows:

After the bending device 8 has been brought to the "O" mark of the angular graduation 12, the material to be bent is pressed against the roller 9 at one end at the height of the pivot axis 7 by means of an adjustable pressure plate 13 (not shown in detail). It can be useful to provide a laterally displaceable counter-holder Ik reaching as far as the pivot axis 7.

First, the sample item to be abandoned is in the area of his first curvature so clamped that the adjoining straight, free end piece runs in the axial direction of the material to be bent. Then the tailstock 3 is used Determination of the 1st feed advanced so far that the ends of both materials are at the same height. Now will the sample piece so that the one on the other Side of the curvature adjoining straight area runs in the axial direction of the material to be bent. Now that will The material to be bent is bent by means of the bending device 8 until the free ends of the muste ^ piece and the to bending material run parallel. During the bending process, the tailstock 3 is because the material to be bent is there is firmly clamped, tightened.

Since the material can only be bent in one direction, it must be rotated by a corresponding angular value.

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During or after each of the operations described above, the length shifts that have occurred are The bending angle and, if necessary, the twisting angle are read off and transferred as a precaution to a work card that will later be used for programming an automatic bending machine.

In addition, with a device according to the invention, e.g. if an automatic bending machine normally used for production fails, the values determined can also be used to manufacture appropriately bent materials manually.

Claims (1)

- 5 - Daim 924Oa / 4 Protection claims ,1. Device for measuring curved, rod-shaped or tubular Material, such as compressed air lines for commercial vehicles, whereby by reshaping a e.g. using a Model line produced a second line is bent and that occurs during the bending process Feeds, bending and! optionally the angle of rotation can be detected, characterized in that one along at least a length ruler (4) that can be moved horizontally, with an angular graduation (6) and a rotatable clamping device (5) for receiving the material to be bent provided tailstock (3) is provided, and that in the region of the free end of the material to be bent a in the pivot axis (7) of a bending device (8) lying roller (9) and coaxially with this another one Roller (10) is arranged with a clamping device (II) for receiving the sample. 2 «device according to claim 1, characterized in that the rollers (9 · 10) are interchangeable. 3. Apparatus according to claim 1, characterized in that the angular graduation (12) used to determine the bending angle to compensate for the spring deflection of the to be bent Material is adjustable.