DE7518467U - LIFTING DEVICE FOR LINE DRILLING MACHINES - Google Patents

Description

Dipl.-Phys. Jürgen Wolsse ^T

Dipl.-Chem. Dr. R 'do! F toilet guest

D- 5620 VeIbort 11 _- _Ln ^ grηbοrq

Bobb-jich 41
Postiach 110386, Tel. 4018, Telex 6518095

Hermann Ganner in Telfs (Austria)

Lifting device for row drilling machines

The innovation relates to a lifting device for Row drilling machines, in particular dowel drilling machines, preferably with one per row of drills, for example with one Frame rigidly connected support beam and designed as a carrier of drilling spindle rows and lifting beam at least one lifting cylinder arranged in between.

Lifting devices of this type are generally known in multi-spindle drilling machines.

19144 13 / pt / 23

The task of the innovation, however, is a lifting device to create, in the case of MehrspindelbohrmascMnen, for example with a working length of 2 400 rjn to 3 000 mm a carrier of the drilling spindle unit can be accommodated and also with unequal loads exactly is guided in parallel during the drilling stroke.

Another task of the innovation is to regulate the speed of the lifting process, so that the lifting process goes on at the desired speed and there are no jerky feed movements comes and not during the actual drilling process, such as »B * when penetrating the plate to be drilled and when pushing out the drill on the other side of the plate.

According to the invention, this is achieved by at least two preferably at opposite ends of the lifting device arranged toggle linkage via which the lifting beam is supported on the support beam, which via a linkage or the like. are connected to each other and acted upon jointly by at least one lifting cylinder.

It is advantageously provided that the lifting cylinder engages the linkage.

An advantageous embodiment is characterized by a length compensation device arranged on the linkage.

The toggle linkages can be adjusted to one another by means of a length compensation device of this type.

It is also provided that the lifting cylinder is designed as a pneumatic cylinder and that in the area of the

rod or a part acting on it Hydraulic cylinder is provided in which a piston acted upon by the pneumatic cylinder is guided.

The linkage is also preferably in the area of the Lift cylinder arranged a drilling stroke limitation.

An exemplary embodiment of the innovation is described in detail below with reference to the figures in the accompanying drawing, without the innovation being intended to be restricted to this exemplary embodiment. Likewise, the reference symbols cited in the following claims are not intended to mean any restriction; they merely serve to make it easier to find related parts in the figures of the drawing.

Fig. 1 shows a s <h ematic containing diagram a multi-spindle drilling machine with a lifting device according to the invention and FIG. 2 shows schematically a side view of a novel lifting device.

As can be seen from FIG. 1, a corresponding multi-spindle drilling machine has a frame 11, which carries the support beams 2 for the lifting device and also supports 12 for a plate 13 to be drilled.

Furthermore, 15 clamps 14 for the workpiece are arranged on the frame 11 via a bar.

In the exemplary embodiment, the drives for the drilling spindle 16 are not shown because they are not directly belong to the invention and are also known to any person skilled in the art.

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The lifting device according to the invention consists of a support beam 2 mounted on the frame 11, the guide columns 2a for the walking beam 1. The guide pillars 2a are formed by corresponding shaped pieces 1b of the walking beam 1 includes.

The walking beam 1 carries the receiving base 1a of the drilling spindle units on its upper side.

The shaped pieces 1b are slidable on the guide pillars 2a.

In the area of their two ends, the lifting beam 1 and the support beam 2 are each supported by a toggle linkage 7 connected with each other. In the exemplary embodiment, the toggle linkages 7 are on the one hand via steel pin joints 8 connected to the lifting beam 1 and the supporting beam 2 and, on the other hand, to a linkage 5.

Αώ Linkage 5 is a length compensation device 6 provided, which is used to adjust the toggle linkage, i.e. through it the largest possible angle of the Determined toggle linkage.

This length compensation device can be designed in any conventional manner, for example by means of corresponding threads on the rod ends 5 ¹ with a corresponding union sleeve nut.

The linkage 5 connects on the one hand the two toggle linkages 7 with one another and ^ also runs through the lifting cylinder 3 designed as a pneumatic cylinder.

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In the area of the pneumatic cylinder, the rod 5 is provided with a piston 17 which can be acted upon in the pneumatic cylinder is. Furthermore, the rod 5 has a drill cap limitation 9, which is also conventional and Way is adjustable on the linkage 5 and cooperates with stops 18.

In the lifting cylinder 3, of course, inlet and outlet / valves for the compressed air are provided, but they are also not shown in the figure of the drawing because they, like the corresponding control device are known, i.e. it can be used to carry out the innovation any known type of pneumatic control can be used.

Also in the course of the linkage 5 and subsequently to the lifting cylinder 3, a hydraulic cylinder k is provided. Within the hydraulic cylinder 4, the linkage 5 carries a piston 10.

The diameter of the piston 10 determines the speed the rod movement in the direction of arrow A. In addition, this hydraulic cylinder creates a uniform Lifting speed achieved.

To the function of the lifting device:

at arrow B compressed air is in the pneumatic cylinder, i.e. lifting cylinder 3 inserted, the piston 17 and thus the rod 5 moves in the direction of arrow A.

This movement spreads the toggle linkage 7 and lifts the lifting sheet 1 with the drilling spindles 16.

After the drilling process, the compressed air is released in the right area of the lifting cylinder 3 and the lifting beam is brought back into the original position, i.e. the position shown in the figure of the drawing, by its own weight .

This retrieval can, however, also be supported by a supply of compressed air in the area of arrow C.

Both the actual drilling stroke movement and the return movement of the walking beam 1 are controlled by the piston 1C braked in the hydraulic cylinder. By appropriate selection of the diameter of the piston 10, the speed is also the stroke movement can be selected.

Claims (5)

Protection claims 1. Lifting device for in-line drilling machines, in particular Dowel drilling machines with, preferably per row of drills, one, for example with a rigid frame connected support beam and a lifting beam designed as a carrier of drilling spindle rows and at least a lifting cylinder arranged in between, characterized by at least two, preferably at opposite ends of the lifting device arranged toggle linkage (7), over which the lifting beam (1) on the support beam (2) supported, which via a linkage (5) or the like. are connected to each other and are acted upon jointly by at least one lifting cylinder (3). 2. Lifting device according to claim 1, characterized in that that the lifting cylinder (3) engages the linkage (5). 3. Lifting device, characterized by a length compensation device (6) arranged on the linkage (5). 4. Lifting device according to claim 1 or 2, characterized in that the lifting cylinder (3) as a pneumatic cylinder is executed and that in the area of the linkage (5) or a part acting on it, a hydraulic cylinder is provided, in English one acted upon by the pneumatic cylinder Piston is guided. 5. Hubvorric-htung according to one of claims 1 to 4, characterized by a drilling stroke limiter (9) r arranged on the linkage (5)