DE1197431B - Brush drilling and / or tamping machine with work piece holder and storage container for the work pieces - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. α .:

A46d

German KL: 9 a- 3/06

Number: 1197 431

File number: Z 9850III / 9 a

Filing date: January 12, 1963

Opening day: July 29, 1965

The invention relates to a brush drilling and / or tamping machine, the workpiece holder and the storage container for the workpieces. In the known brush drilling and / or tamping machines the workpieces, i.e. the preprocessed brush bodies, are often placed in a workpiece holder by hand inserted and clamped there before the workpiece can be machined. this applies especially for clamping larger brush bodies.

In the case of smaller and lighter brush bodies, it has also become known to be drum-like To use clamping devices, in which the workpiece from a magazine out into the clamping device falls, automatically clamped there and in the processing position and, if necessary, in a Ejection position is promoted. Such clamping devices work with jaws that either be moved via a cam drive or hydraulically or pneumatically. The drum-like Clamping devices have the main disadvantage that they are very expensive and prone to failure. So you need for the hydraulically controlled clamping devices on each brush boring and / or -Tamping machine a special hydraulic system. With pneumatically driven drum-like clamping devices it is possible to use an existing one at the installation site of the machine Use the compressed air network. The control of the above, from numerous interlocking Parts of the existing clamping device with compressed air does not allow sufficient lubrication of the reciprocating parts, so that they wear out relatively quickly.

Furthermore, the drum-like tensioning devices have the disadvantage that they are numerous, with each other exactly the same clamping jaws and recesses that are adapted to the brush bodies to be processed must have to accommodate the workpieces. If you use the brush drill and / or -Tamping machine now wants to edit brush bodies with a different outline shape, you need one new clamping device or at least the old one has to be changed considerably.

In the previously known drum-like clamping devices, very small ones have to be used for lack of space Piston working machines to operate the clamping jaws are housed, which are also with the Rotate drum. The piston working machines are therefore relatively heavily loaded and poorly accessible and therefore usually cannot be lubricated well. Often there are two pistons in one Brush drilling and / or tamping machine with workpiece holder and storage container for the workpieces

Applicant:

Anton Zahoransky, Todtnau (Black and White)

Named as inventor:

Dr.-Ing. Heinz Zahoransky, Todtnau (black and white)

drum-like clamping device housed, which have to adjust numerous moving parts, which results in a particular load on the clamping devices. Furthermore, the drum-like, known clamping devices to be installed, pneumatically operated piston work machines depends on the dimensions of the clamping devices. The piston working machines must therefore often have to be made separately for the individual applications.

There is therefore the task of creating a brush drilling and / or tamping machine in which the the aforementioned disadvantages can be avoided. To solve this problem, it is proposed according to the invention that that a brush drilling unit provided with a workpiece holder and storage container for the workpieces and / or tamping machine at the delivery end of the storage container in exceptional, working and optionally adjustable workpiece holder in the ejection position is arranged, which has a base frame having at least one stop bar and at least one adjustable clamping jaw. Such workpiece holders can be made of any size and their base frames, stop bars and clamping jaws adjust their profile to the different brush contours. Through this you are able to use the new clamping device, especially larger brushes to be removed from a magazine and clamped for processing. The space conditions allow it here that the clamping jaw executes an adjustment movement with the workpiece, which is the case with larger Brushing is also larger according to the larger amounts of manufacturing tolerances.

The storage container, which is arranged essentially vertically, can have a holder at its dispensing end for the lowest workpiece, which must be opened for the purpose of releasing the workpieces. These

509 628/21

Bracket can consist of two arranged directly below the dispensing end of the storage container, rotatably or displaceably mounted flat slides exist, the locking surfaces of which by means of an adjusting device are pivotable inside or outside the container outlet opening.

Furthermore, a clamping pin or the like can be attached to the storage container opposite a side surface of the second bottom Workpiece be arranged to be longitudinally displaceable, so that the indented pin this workpiece able to clamp in the reservoir.

The adjusting device and / or the clamping jaws of the workpiece holder can each with a pneumatically operated piston are in communication.

The workpiece holder is pivotably mounted; if necessary, it can also be in a slide guide Od. Like. Be slidably guided. The workpiece holder can be pneumatically operated Piston are in connection, which makes the pivoting or shifting of the workpiece holder.

Furthermore, the brush drilling and / or tamping machine can have adjustable stops for the workpiece holder have, which are preferably provided with a buffer disk. By means of these stops are then the end positions of the workpiece holder can be set up.

If necessary, you can have two storage containers with the associated workpiece holders mirror-symmetrically arrange them next to each other and coordinate the holder movements in such a way that the Drilling or tamping tool from the last holes to be machined of the one accommodated in the first holder Workpiece directly to the adjacent holes in the second holder Work piece and after its completion the return to the one with a new one Workpiece-filled first workpiece holder can perform. Each holder should change the workpiece when the tool is working on the other holder.

If necessary, locking slides can be arranged on the workpiece holder, which hold the storage container lock downwards, while the workpiece holder is not in the receiving position below the Container is located.

If necessary, the holder to be opened can consist of at least one resiliently arranged slide exist, which is provided with a stop for the workpiece holder such that this the slide displaced from the area of the dispensing end of the storage container when the workpiece holder is in the Recording position engages. If necessary, a spring can be used as an ejector on the workpiece holder be provided. Finally, in the area of the brush body in the working position Arrange an electrical safety switch that shuts down the machine if there is no brush body in the Workpiece holder lies.

Further details of the invention will be given with reference to some of the exemplary embodiments shown in the drawings explained in more detail. It shows

F i g. 1 shows a partially sectioned front view of the storage container and the one in the receiving position workpiece holder located,

F i g. 2 one of the F i g. 1 corresponding representation with pivoted by 90 ° and in working position workpiece holder located,

Fig. 3 is a partially sectioned side view corresponding to the line III-III in Fig. 1,

F i g. 4 is a partially sectioned side view along the line IV-IV in FIG. 2;

F i g. 5 shows a partial view of the feed end and the workpiece holder along the line V-V in FIG Fig. 1,

6 shows a section through the storage container corresponding to the line VI-VI in Fig. 3 with the slides open,

F i g. 7 shows a horizontal section through the storage container according to line VII-VII in FIG F i g. 4 with closed slides,

8 shows a partially sectioned front view of the storage containers and a longitudinally displaceable one Workpiece holder,

F i g. 9 shows a horizontal cross section through the storage container according to the line IX-IX in FIG Fig. 10,

Fig. 10 is a partially sectioned side view the embodiment according to FIG. 8 corresponding to the section line X-X in FIG. 10,

11 shows a front view of two mirror-symmetrical Storage containers arranged next to one another with the associated, in different positions existing workpiece holders,

12 shows a horizontal section through the arrangement 11 according to the section line XII-XII indicated there and

Fig. 13 is a partially sectioned side view the embodiment shown in FIGS. 11 and 12 corresponding to the line XIII-XIII in Fig. 11 as well

14 is a side view, partly in section a storage container, the end of which can be closed by a resilient slide,

15 shows a highly schematic representation of the entire brush drilling and / or tamping machine, this having horizontally arranged tools, and

16 shows an illustration corresponding to FIG. 15 for a machine with vertically arranged drilling and stuffing tools.

A reservoir for brush bodies 2, designated as a whole by 1, has guide strips arranged vertically 3, within which the brush bodies to be processed can be stacked. At the end of the submission 5 of the storage container 1 is a workpiece holder designated as a whole by 6, the has a base frame 7. A stop bar 8 and two guide bars 9 are fixed to this, however easily detachable attached. In addition, the base frame 7 carries a designated as a whole with 10 adjustable jaws, which consists of a carriage 11 and a leading in the frame 7 thereon releasably attached profile disk 12 is made.

In this way an essential part of the inventive concept is realized, namely to create a combination between a storage container and a workpiece holder, the Reservoir an automatic loading and the workpiece holder 6 a very precise setting of the workpiece in the working position and the receiving position.

Immediately below its delivery end 5, the storage container 1 has a holder, designated as a whole by 13, for the lowermost workpiece 2 a (FIG. 2). This holder 13 has two flat, at 14 and 15 (Fig. 6) rotatably mounted slides 16 and 17, the locking surfaces 18 and 19 within

or are pivotable outside the container outlet opening. This pivoting movement is accomplished by an adjusting device designated as a whole by 20, in its link piece 21 the bent rear ends of the slides 16 and 17 engage. When proceeding the scenery piece 21 in the direction of the storage container 1, the slides 16 and 17 open, as shown in FIG. 6 shown is.

A clamping pin 23 is arranged longitudinally displaceably on the storage container 1 at the level of the side surface 22 b of the second lowermost workpiece 2 b. It rests with one end in the bore 24 of a guide strip 3 of the storage container and with its other end in the bore 25 of a flange 26 which is part of the link piece 21. On the clamping pin 23 there is an adjusting screw 27 and a return spring 28, which is supported on the one hand on the guide strip 3 and on the other hand on this adjusting screw 27. Furthermore, a transport spring 29 is provided on the clamping pin, which spring rests against the outwardly facing surface of the adjusting screw 27 and against the flange 26 of the adjusting device 20. This is connected to a pneumatically operated piston (not shown).

In the embodiment shown in FIGS the base frame 7 of the workpiece holder 6 has two flanges 29 and 30, which are shown in FIG bearing eyes 31 attached to the machine frame are pivotably arranged. On the flange 30 engages the piston rod 32 of an articulated pneumatics 33, so that the workpiece holder 6 at corresponding actuation of this pneumatic system can be pivoted by 90 °, as shown in FIG. 3 and 4 is shown.

The in the F i g. 1 to 7 now works as follows:

First, with the holder 13 closed, the storage container 1 is filled with workpieces 2 to be processed, namely appropriately prepared brush bodies. The lowermost in Fig. 2 with 2 a designated, the slider 16 and 17 is in the closed position rests on the locking surfaces 18 and 19. The workpiece holder 6 assumes the position shown in FIG. 1 facing the dispensing end 5 of the container 1. If now the adjusting means to move in the direction of the container 1 20, first pushes the flange 26 so strongly against the transport spring 29, that its force is greater than that of the return spring 28 and pushes the clamping pin 23 against the second lowermost workpiece 2 b (F i g. 1). During the further procedure of the adjustment device 20, the link piece 21 ensures that the slides 16 and 17 open like pliers and release the outlet opening of the storage container 1 (FIG. 6). The workpiece 2a located at the bottom in the storage container 1 then falls onto the holder 6, which is ready to be received, where it is denoted by 2c in FIG. 1. While the feed end 5 of the storage container 1 is released, the clamping pin 23 presses the workpiece 2 b located at the second lowest point in the container 1 against the guide strips 3, so that it and all the brush bodies 2 above remain approximately in this position until the holder 13 the outlet opening of the container 1 has closed again. This takes place through the decrease of the adjusting device 20 and the associated pivoting movement of the slides 16 and 17. When the adjusting device retreats, the flange 26 that participates in this return movement also reduces its pressure on the transport spring 29, so that finally the return spring 28 pushes the clamping pin so far away from the brush body 2 b is able to solve that this is released and falls on the locking surfaces 18 and 19 of the holder 13 due to its weight. The adjusting screw 27 regulates the timely and sufficiently powerful engagement of the clamping pin 23.

xo On the base frame 7 of the storage container 1 strips 9 are attached, which from the container 1 falling brush body 2 can lead so that it is the desired position on the folded up Holder6 (Fig. 1) occupies. Then he promotes (not shown) pneumatically operated piston which is in connection with the clamping jaw 10, this in the closed position. In this case, the brush body lying on the holder 6, now designated by 2 c pushed by the profile piece 12 against the stop bar 8 and from the clamping jaws 10 and the stop bar 8 clamped.

Then, or even during this clamping process, the pneumatics 33 come into action and preferably pivots the workpiece holder by 90 ° into the position shown in FIG. 2 working position shown. This is where the brush body is machined, i.e. drilling and / or tamping (see Figs. 2 and 7). After finishing the machining of the workpiece 2 c pulls the corresponding one Piston the jaws 10 back so that the brush body due to its gravity tilts out of the holder 6 and falls into a collecting container (not shown). Possibly a special ejection device 37 can also be provided. Subsequently promoted the pneumatics 33 return the workpiece holder 6 to the tilted-up position according to FIG. 1, and the work cycle described is repeated.

In order to be able to set up the end positions of the workpiece holder 6 precisely, the brush drilling and / or -stopfmaschine adjustable stops 34 are provided, which consist of screws and on the Wear the screw head of the buffer washers 35. With the help of the stops 34, in particular, the position of the workpiece holder 6 in the machining position (Fig. 2 and 4) in a very simple manner set exactly. This is very important for the drilling and / or tamping process to run smoothly important. But a further end position can also be used with the one that is usually provided for two positions Set up the workpiece holder exactly, so that the brush body 2 can also be safely picked up the reservoir 1 is guaranteed. The construction according to the invention not only allows one easy replacement of the guide and stop strips 8 and 9 as well as the profile piece 12 of the clamping jaw 10, but also allows readjustment and adjustment of these guide and clamping means. The entire holder 6 can also be easily exchanged.

In the F i g. 8, 9 and 10 a slightly modified embodiment of the present invention is shown. With it, the workpiece holder is not pivotably mounted, but rather is arranged in slide guides 36. In addition, the workpiece holder 6 a here also has an ejector device 37, which removes the brush body 2 c after machining and the release by the clamping jaw 10

able to eject from the holder 6 a. In this embodiment too, the workpiece holder 6a located below the storage container 1 takes over the brush body located at the bottom and clamps it in the manner already described. During the clamping process or afterwards, the workpiece holder brings the brush body 2c clamped onto it into the processing position, as shown in FIG. 9 and 10 is shown. The displacement of the holder 6 a takes over a pneumatic 33 α again.

In the example shown in Figs. 8 to 10 embodiment, the bracket 13, which is for temporarily closing the container 1, two on the workpiece holder 6 a arranged locking bars 38. These guide the horizontal movement of the holder 6 a and close the outlet opening Sa of the Container 1 when the workpiece holder 6 a is not in the receiving position. Instead of the slide guide 36, guide rails can also be used, for example. The horizontal displacement of the workpiece holder 6 a is used when both the drilling and / or tamping tools are arranged as well as the one or more reservoir vertically, as Fig. 10, it shows, in which the working head of a tamping tool is schematically indicated 39 (see. Also Fig. 16). The displacement of the workpiece holder 6 a can also be carried out transversely to the storage container 1. The machines (not shown) operating with a horizontal guide for the workpiece holder 6 a also expediently have stops 34 by means of which the end positions of the holders 6 can be set.

According to a further development of the invention, in an embodiment shown in FIGS. 11 to 13, two storage containers 1 and 1c are arranged next to one another in mirror symmetry. Below these containers are workpiece holders 6 & 6c, which essentially correspond to the pivotable workpiece holder 6 described in FIGS. Each of these holders 6 b and 6 c has a base frame 7 b or Tc , which has a guide strip 8 b or 8 c and a clamping jaw 10 6 or 10 c provided with a corresponding profile piece 12 b or 12 c. This is in turn connected to a pneumatically adjustable piston (not shown in detail). Corresponding to the mirror-symmetrical arrangement of the storage containers Ib and Ic, the workpiece holders 6 b void 6 c are also configured mirror-symmetrically. They are also provided with an ejector 37 & or 37 c.

In the case of the brush drilling and / or tamping machine according to the invention, which is provided with two storage containers, toothbrush handles 40 and 41 are provided for processing. These have a relatively small number of holes. In the case of such workpieces, it is therefore important that the dead time required for changing the workpiece can be kept as short as possible during machining. Are to achieve this, the invention provides that, under the mirror-symmetrically arranged reservoirs Ib and Ic the movements of the workpiece holder 6 b and 6 c coordinated such that the drilling or filling tool of the last to be processed holes 45 of the first Holder 6 δ accommodated workpiece 42 can pass directly to the adjacent holes of the workpiece accommodated in the second holder 6 c. After the completion of this workpiece then the tool is to perform the return to the filled with a new workpiece first holder 6 b. To do this, the two workpiece holders 6 b and 6 c have to work alternately, with both holders 6 & and 6 c during the transition of the tool from the toothbrush handle 42 clamped in the holder 6 b to the toothbrush handle clamped in the holder 6 c (not shown) must stand in the swiveled down working position. Of course, both the storage containers 1 & 1c and the associated holders 6b and 6c must be arranged in such a way that the ends of the workpieces 40 to 42 to be machined come to lie next to one another. The workpieces 40 to 42 are changed in one holder, for example 6c, when the tool is working on the other holder 6b . This position is shown in FIG. 11, where the brush handle 41 lying in the container Ic is still just held by the locking strips 38c. As soon as this releases the outlet opening 5c of the storage container Ic, the toothbrush handle 41 will fall due to its weight onto the workpiece holder 6c that is ready to be received and firmly clamped there by means of the stop bar 8c and the profile piece 12c of the clamping jaw 10c. During this process or after it has been completed, the holder 6 c then swivels out of the position shown in FIG. 11 into the processing position. This is shown in the case of holder 6b in FIGS.

The holder 13 for the located in the reservoirs Ib and Ic workpieces 40 and 41 is formed by blocking strips 38 b and 38 c, the movements of the workpiece holder is profiled in a circular arc 6 & and 6c corresponding, as shown in Fig. 13 can be seen. This shows the holder 6c in the receiving position and the holder 6 & in the working position.

The brush drilling and / or tamping machine according to the invention has compared to the previously known corresponding machines have the advantage that brushes of all kinds, especially larger brushes, are made can be automatically removed from a magazine and clamped in a workpiece holder, which feeds them to the drilling and / or tamping tools and ejects them after processing. There is one precise setup of the workpiece holder possible, which can also be easily replaced or rebuilt in this way can be that they are used for clamping workpieces of different shapes can. The components used in the machine according to the invention are extremely simple in FIG their structure and can therefore usually be handled by the workforce that is normally available service and repair. Compressed air can be used to drive the moving elements, which is already available in numerous relevant companies. Control of the pneumatic driven piston and the like takes place by means of commercially available electropneumatic control devices. The machine according to the invention is easy to manufacture, robust and can be used in large numbers same parts even with different types of brush drilling and / or tamping machines.

In Fig. 14 is a further embodiment for the holder for the lowermost workpiece in the

Reservoir 1 shown. Here the bracket consists of at least one resiliently arranged Slide 50 which has a stop for the workpiece holder 6. When this is in the processing position, the slide 50 engages under the supply container 1. If, however, the workpiece holder 6 is in the receiving position below the storage container pivoted, as shown in FIG. 14, the holder 6 strikes a stop of the slide 50 and pushes it aside so that this slide releases the feed end of the storage container when the Workpiece holder has taken the receiving position below the storage container.

Both pneumatically operated ejector devices 37 and ejector devices (not shown) which consist of a spring can be accommodated on the workpiece holders 6, 6 a and 6 b. Such spring ejector devices are placed under slight tension when the workpiece is inserted into the workpiece holder. In the deflected position of the workpiece holder, they are then able to remove the machined workpiece from the clamping device.

In FIG. 12, two electrical safety switches 51 are shown, which are located in the area of the in Working position standing brush body. These known electrical safety switches are able to shut down the entire machine if there is no brush body in the workpiece holder 6 is located.

Finally, it should be mentioned with regard to FIGS. 15 and 16 that they are shown in a highly schematic representation show a side view of a brush drilling and / or tamping machine, namely shows FIG. 15 shows a machine in which the drilling and tamping tools are horizontal, and FIG. 16 shows a machine, in which these tools are arranged vertically.

One of the advantages of the brush drilling and / or tamping machine according to the invention is that the clamping device of its workpiece holder can be operated by means of a commercially available pneumatic device which can be replaced as required. The reciprocating operation of the workpiece holder 6 draws no or only insignificant downtime compared to drum-type clamping devices for these trips because you can work c example with two workpiece holders 6 & and sixth In the workpiece holder 6 according to the invention, there is also space for clamping and adjusting larger brushes; Furthermore, the spatial conditions allow the accommodation of relatively large and robust pneumatic devices for adjusting the clamping means.

Claims (15)

Patent claims: 1. Brush drilling and / or tamping machine with workpiece holder and storage container for the Workpieces, characterized in that at the delivery end (5) of the storage container (1) a workpiece holder that can be adjusted in the receiving, working and, if necessary, ejecting position (6) is arranged, which has a base frame (7) with at least one stop bar (8) and has at least one adjustable clamping jaw (10). 2. Brush drilling and / or tamping machine according to claim 1, characterized in that the substantially vertically arranged storage container at its dispensing end (5) a holder (13; 38; 50) for the lowermost workpiece (2 c) has, for the purpose of releasing the workpieces is to be opened. 3. Brush drilling and / or tamping machine according to claim 2, characterized in that the Bracket (13) made up of two arranged directly below the dispensing end (5) of the storage container (1), rotatably or displaceably mounted flat slides (16, 17), the rigid surfaces (18, 19) of which by means of an adjusting device (20) can be pivoted inside or outside the container outlet opening. 4. Bürstenbohr- and / or -stopfmaschine according to one of claims 1 to 3, characterized in that a clamping pin (23) or to the reservoir (1). The like. Opposite to a side surface (22b) of the second lowermost workpiece (2b) disposed longitudinally displaceably is such that the indented pin is able to clamp this workpiece (2 b) in the reservoir. 5. Brush drilling and / or tamping machine according to claim 3, characterized in that the Adjusting device (20) is connected to a pneumatically operated piston. 6. Brush drilling and / or tamping machine according to claim 1 or one of the following, characterized characterized in that the clamping jaws (10) of the workpiece holder (6) are pneumatically operated Pistons are in communication. 7. Brush drilling and / or tamping machine according to claim 1 or one of the following, characterized characterized in that the workpiece holder (6) is pivotably mounted. 8. Brush drilling and / or tamping machine according to claim 1 or one of the following, characterized characterized in that the workpiece holder (6 a) or the like in a slide guide (36). Slidable is led. 9. Brush drilling and / or tamping machine according to claim 1 or one of the following, characterized characterized in that the workpiece holder (6) is connected to a pneumatic device (33) that is able to move or pivot the workpiece holder (6). 10. Brush drilling and / or tamping machine according to claim 1 or one of the following, characterized characterized in that the machine is expediently provided with a buffer disk (35) has adjustable stops for the workpiece holder (6), by means of which their end positions are adjustable. 11. Brush drilling and / or tamping machine according to claim 1 or one of the following, characterized in that two storage containers (Ib, Ic) with the associated workpiece holders (6 b, 6 c) are arranged mirror-symmetrically next to one another and the holder movements are coordinated with one another, that the drilling or stuffing tool from the last to be machined holes (45) of the workpiece (42) accommodated in the first holder go directly to the adjacent holes of the workpiece accommodated in the second holder (6 c) and, after its completion, the return to the one with a new workpiece filled first workpiece holder can carry out while 509 628/21 ii each holder (6 b or 6 c) changes the workpiece when the tool is working with the other holder. 12, brush drilling and / or tamping machine according to one of claims 1, 2 or 8 to 11, characterized in that on the workpiece holder {β α, 6b bm. 6 c) locking strips (38) are arranged which lock the storage container (X) downwards when the workpiece holder is not in the receiving position under it. 13. Brush drilling and / or tamping machine according to claim 2 or one of the following, characterized in that the holder to be opened consists of at least one resiliently arranged slide (50) which is provided with a stop for the workpiece holder (6), IQ in such a way that this removes the slide from the area of the dispensing end (5) of the storage container (X) displaced when the workpiece holder engages in the receiving position. 14. Bürstenbahr- and / or tamping machine according to claim 1 or one of the following, characterized characterized in that a spring is provided as an ejector on the workpiece holder (6) is. 15. Brush drilling and / or tamping machine according to claim 1 or one of the following, characterized characterized in that in the area of the brush body standing in the working position electrical safety switch (51) is provided, which is able to shut down the machine when there is no brush body in the workpiece holder. In addition 4 sheets of drawings 509 628 / 217.6 $ © Bundesdiuckerei Berlin