WO2017140420A1

WO2017140420A1 - Workpiece processing machine and a machine park formed from a plurality of workpiece processing machines

Info

Publication number: WO2017140420A1
Application number: PCT/EP2017/000203
Authority: WO
Inventors: Uwe Marquart
Original assignee: Marquart, Ingeborg
Priority date: 2016-02-15
Filing date: 2017-02-14
Publication date: 2017-08-24
Also published as: CN107081604A

Abstract

The invention relates to a workpiece processing machine (1) having a machine frame (2, 10, 12), which consists at least of a base part (2) at the bottom, on which at least one vertically oriented upper part (10) is arranged, wherein one or more processing spindles (25, 25a, 26, 26a) perform the processing of at least one workpiece (21 a-f) which is gripped in at least one workpiece carrier (20), wherein the machine frame (2, 10, 12) of the processing machine (1) is assembled in a modular manner and consists of at least three parts supported on one another merely by weight loading, namely a base part (2), a central part (12) fitted thereon, and an upper part (10) fitted onto the central part (12).

Description

Workpiece processing machine and one of several

The invention relates to a workpiece processing machine (WS processing machine) and a machine park formed from a plurality of WS machine tools.

With EP 2 310 166 B1 and EP 0 883 456 B1, a WS machine has become known which has a circumference

closed frame-shaped frame having an inwardly open machine frame. The machine frame is therefore closed on all sides on the circumference and in the inner frame opening formed thereby a number of hanging arranged processing spindles are arranged, each associated with a rotationally driven tool spindle. There is also a movable in three axes workpiece carrier present, which is aligned horizontally and on which the workpiece to be machined is clamped. The workpiece carrier is three axes translationally movable and is not attached to the machine frame. Rather, it protrudes through the central opening of the machine frame and is connected to a separate fastening part with the bottom-side foundation of the machine frame.

With the separate from the machine frame attachment of the

Workpiece changer has the disadvantage that a high constructive

Expense in the manufacture and assembly of such a machine frame is connected.

There is the further disadvantage that the machine frame of such a known WS machine is subjected to strong vibrations during machining, because all machining spindles hang on the upper part of the machine frame and work against the from

Machine frame separately arranged workpiece carrier, what with

CONFIRMATION COPY Problems associated with accuracy in the machining of workpieces.

For machining a workpiece, it is necessary to use the individual

To raise and lower machining spindles in the vertical axis and at the same time to move in the horizontal axis, which is associated with long processing times, because the X-Y displacement of

Machining spindles associated with high design complexity. After such guide carriage must be precisely guided, the adjustment movements are slow because of the required accuracy and there is a lot of machinery in the management and control of the guide carriage. The moving masses are in the known machine frame

unevenly distributed, because all the masses of juxtaposed processing spindles are in the upper base leg of the in itself

closed machine frame, while the masses of the machining table are arranged separately from the machine frame in a base connected to the machine frame and have a much lower mass.

This has the disadvantage of undesirable vibrations in the

Machine frame. With fast movements of the guide carriage for the guidance of the machining spindles arise high

Mass accelerations and thereby create different forces between the individual processing axes, which are difficult to control by the control technology. Another disadvantage is that the machining spindles are arranged hanging and against a lying on a horizontal table

Workpiece carrier work, so that there is the disadvantage that deposit there chips that are difficult to remove. With US2012 / 0107064 A1 discloses a machine frame in cross-section L-shaped is known, in which on a cuboid

Basisfundament a vertically aligned upper part is arranged. At the top of several processing spindles are arranged hanging and are driven displaceably against a arranged on the lower part of the workpiece carrier.

About the type of training of the upper part and the lower part and their mutual connection are from the cited document no

To take information. Incidentally, the same disadvantages as explained with reference to EP 2 310 166 B1 apply.

With the subject of DE 202 02 786 U1 a further WS-processing machine has become known, are arranged in which in an upper part of a machine frame vertically down machining spindles. The upper part is designed as a carriage, which is driven displaceably on a bottom-side lower part.

Thus, there is the disadvantage that the movement of the machining spindles in the vertical direction and in a direction perpendicular thereto, as well as in the Y direction must be made, causing very high masses at the top of the

Foundation of the processing machine must be moved. The

Mass inertia accelerations occur mainly in the X and in the Y axis, which is undesirable.

The invention is therefore based on the object, a WS machine of the EP 2 310 166 B1 or EP 0883 456 B1 continue to form so that a high-speed machining of workpieces is possible that small travels are given and that an overhead machining is possible , so that it is ensured that the chips fall down into the machine bed which is open at the bottom and do not deposit on the workpiece carrier. To solve the problem, the invention is characterized by the technical teaching of claim 1.

Advantage of the technical teaching of the invention is that the WS-processing machine allows high-speed machining, with spindle revolutions of more than 100,000 revolutions per minute are given.

With such a WS processing machine, metallic housing frames of small electronic devices, such as e.g. Smartphones, machined. Such housing frames have e.g.

Dimensions in the range of 50mm x 100mm.

Characteristic of the present invention is that the frame of the machine tool is modular and preferably consists of at least three parts weighted only superimposed superimposed parts, namely a base part, a middle part placed thereon and an upper part placed on the middle part. This modular design of the frame of the machine results in the significant advantage that these three parts arbitrary

replaced and easily replaced.

In a preferred embodiment of the invention, it is provided that all three parts consist of a material with a high density. Such a density corresponds approximately to the density of a solid stone material. Such a stone material may be a natural stone, e.g. Granite. Granites have because of their high resistance, hardness and

Weather resistance and because of their good grinding and polishing a great economic importance in construction, but also in special areas of mechanical engineering, tooling and for

Measuring devices used. Granite corresponds in its chemical and mineralogical composition to volcanic rhyolite. Granite usually appears massively and can through horizontal and vertical gullets (these are fine interfaces in the rock or in the mountains, by tectonic

Stress arise) be broken down into blocks

In a preferred embodiment, it is provided that all three parts of the frame are formed from a granite and therefore consist of massive granite blocks, which have a particularly preferred shape such that the base part substantially as

rectangular parallelepiped is formed with rechteckfömigem cross-section, the middle part is designed as an L-shaped profile part and the upper part as a beveled also cuboidal part.

In a preferred embodiment, the base part has dimensions of about 120cm x 70cm x 50cm while the top is about the same

Has dimensions and connecting the two parts L-shaped middle part dimensions of about 70cm at a 30cm wall thickness.

Characteristic of all three parts is therefore the heavier structure, so that a frame of such a processing machine on a

Total weight of about 800 kg comes to 2 tons. These are therefore natural stone blocks, preferably granite, which have a high density in the case of an exemplary density according to EN 1936 of 2800 kg / m ³ .

Thus, the advantage is achieved that the frame of a WS machine is set only by the burden of the weight of the individual modules together and there is no need for connecting elements between the modules.

The arranged on the modules of the frame functional and

Machining elements can therefore be light (with low weight) be designed, because they are connected with suitable connections with the heavy modules of the frame of the processing machine. Because of the high inherent weight of the modules and the use of functional and processing elements with low weight, no or only negligible vibrations occur in the individual modules of the frame in the machining of metal workpieces, as it was not previously known in the prior art. For a high-speed machining of workpieces with a previously unknown precision is possible.

In another embodiment of the invention, it is provided that the three modularly stacked parts are not made of a natural stone, such as e.g. Granite but consist of an artificial stone. Such an artificial stone can be a poured concrete or a combination of concrete and a

be hardenable plastic.

The curable plastic may be mixed with rock flour to increase the density in order to achieve a high volume weight at high

To achieve density in order to obtain in this way a similar bulk density and a similar density as in a natural stone.

In a third embodiment, it may be provided that the said parts of the machine frame made of a cast material with high

Density at high density exist, for example, a

Cast concrete, a cast metal or the like.

Characteristic of all embodiments is therefore the modular

Assembly of the frame of the processing machine and that the modules only weighted rest on each other and no connection means between the parts are necessary because the weight of the mutually stationary parts is sufficient to stack the parts against each other secured against displacement. This makes it possible to achieve faster dismantling or conversion of a system consisting of a large number of modules from several WS machine tools. Due to the modular design of the invention

Processing machine gives the further advantage that such

Modular machines can be placed together so as to form a combined machine park, in which the individual modules of the frame are attached to each other and thus to form a continuous, together set machine frame for a variety of WS machines. A machine park according to the invention therefore consists of a plurality of similar foundations of processing machines, wherein the respective processing machine does not necessarily have to have the same functional parts necessary for the solution. It is only important that the foundations of a machine park are the same and here it is essential in one embodiment that a machine park is formed by the fact that the base part of the

Machinery extends through a plurality of processing machines and forms a single cuboid, while on this base part, the middle parts and the upper parts placed on the middle parts are placed.

Thus, on a continuous base part having a length of e.g. 20 meters may have a plurality of middle parts and tops are placed so that a machine park consists of a continuous base part and a plurality of mutually spaced and arranged on the base part middle parts and tops.

Compared to individual processing machines that could also be modular with separate base parts together, there is the advantage that a weight reduction is given because the individual masses of the foundations are connected to each other and thereby a particularly low-vibration heavy machine with a results over several processing machines extending base foundation.

Because the base part forms a continuous part, which extends over several processing stations and on which the middle parts and tops are placed without connecting means, the mass of the middle parts and tops can be reduced because a low-vibration heavy base part - preferably made of a natural stone - is present , The base part thus forms the foundation for a number of there

attached processing machines.

In another embodiment, it may be provided that the individual base parts of the individual WS processing machines with each other

are mechanically coupled, so also to form a continuous base part, but the individual parts then by mechanical

Connecting means is coupled together.

In another embodiment, it may be provided that the upper parts are connected to each other by connecting means and / or the middle parts.

In a preferred embodiment of the invention, it is otherwise provided that the individual WS-processing machines are not aligned in a line with a continuous base part, but they can also be connected to each other via a corner, i. Back on

Back, wherein the respective base part and the respective upper part can be connected to each other, so as to allow a 4-way composite of a total of 4 WS machines. Of course, in addition to this 4-composite also other composite structures such. Six-member networks or two

Floors (floors) extending, stacked foundations of processing machines are formed. It is therefore important in all embodiments that at least three heavily loaded foundation parts (base part, middle part and upper part) are modularly stacked on each other and form a single foundation of a processing machine and lined up with a variety of other foundations of other processing machines, connected at an angle to each other or stacked in height can be.

In a preferred embodiment of the invention, it is provided that the workpiece carrier for receiving the workpiece to be machined is arranged on the upper part.

It is preferred if the workpiece carrier is aligned on the horizontal axis and the workpiece carrier as a whole consists of an approximately cube-shaped or polygonal body, wherein the individual surfaces of the body are formed as receiving or support surfaces for the workpiece to be accommodated there.

It is further preferred if such a support surface is suitable not only for holding a single workpiece, but for holding a plurality of parallel juxtaposed workpieces, wherein formed in a preferred embodiment with reference to the later drawings nor a workpiece carrier as 8-fold workpiece carrier for associated workpieces is. The invention is not limited thereto. Will the cube-shaped

Workpiece carriers formed with more than six cube surfaces, of course, can also be formed a plurality of mounting and processing surfaces for there to be held workpieces. In a preferred embodiment, it is provided that the polygonal workpiece carrier is rotatably mounted in a horizontal axis on the upper part and in the region of guide rails in the horizontal direction is displaceable. The horizontal direction is the X-axis, while the rotation axis is the so-called B-axis. In a further development of this embodiment, it is further preferred if the one or more machining spindles with the spindle-like tools received there are arranged on the base part and are movable in the Y-direction on associated guide rails.

This has the advantage that the mass accelerations, which in the high-speed machining of workpieces in the field of

Workpiece receiving arise, are absorbed by the high-weight shell and the mass accelerations of the one or more machining spindles are absorbed by the high-weight base part.

At the middle part no functional elements are arranged, so that this provides only the connection between the high-weight upper part and the high-weight base part.

There is the advantage that the functional elements, such as

Workpiece carrier is moved only in guide rails and the upper part itself does not have to be moved -. in contrast to the aforementioned DE 202 02 786 U1, in which the functional elements are attached to a relatively lightweight upper part, which upper part in

Guide rails must be movable, which prohibits a high-weight top. But this affects the machining accuracy.

This is where the invention begins, which provides that the upper part be through

Dead weight even resting on the base part rises and the

Functional elements are arranged displaceably even on the upper part, ~ without the upper part itself is moved.

In a preferred first embodiment, it may be provided that the workpiece carrier is arranged hanging on one of the upper part

Angled bracket is attached, which angle bracket is movable in horizontally aligned guide rails, while in a second Embodiment, it may be provided that the angle bracket is designed as a linear support and the guide rails are mounted hanging on the underside of the upper part. The subject of the present invention results not only from the subject matter of the individual claims, but also from the combination of the individual claims with each other.

All information and features disclosed in the documents, including the abstract, in particular the spatial design shown in the drawings, are claimed to be essential to the invention insofar as they are novel individually or in combination with respect to the prior art.

Insofar as individual items are designated as "essential to the invention" or "important", this does not mean that these items

necessarily have to be the subject of an independent claim. This is only by the current version of the

independent claim determined. In the following the invention will be explained in more detail with reference to drawings showing only one embodiment. Here are the

Drawings and their description further essential to the invention

Features and advantages of the invention. Fig. 1: Top view of an WS-processing machine

Fig. 2: side view through a first embodiment of the WS machine Fig. 3: side view of a second embodiment of the WS machine

Fig. 4: Perspective view of the base part Fig. 5: Perspective view of the middle part

Fig. 6: Perspective view of the upper part Fig. 7: Perspective view of the WS processing machine

FIG. 8 shows a machine park composed of a multiplicity of processing machines according to FIG. 7; FIG. 9 shows a plan view of the arrangement according to FIG. 8;

Fig. 10: A comparison with FIG. 9 modified embodiment with cornering machine tools In Fig. 1-3 - an WS-processing machine 1 is shown in the

Consists essentially of a cuboid base part 2, (see Fig. 4), which has a front side 3, an opposite rear side 4, and two opposite end faces 5, 6. The base part 2 forms an upper cover surface 7, which serves as a footprint or as a footing 9 is suitable for the weight-loaded placement of an L-shaped profiled middle part 12.

The middle part 2 is available with a high surface pressure and

Weight load on the bottom surface 8 on a footprint not shown.

On the L-shaped central portion 12 is also a high-weight loaded upper part 10 is placed. The upper part 10 can be seen from Fig. 6 and consists of an approximately cuboidal part, which was provided for weight reasons with a chamfer 36, was removed in the material. It is important that at the front of the upper part 1 extending in the horizontal direction guide rails 29 are formed or mounted for the sliding recording of a guide carriage, not shown, with these guide rails (see Fig. 7) an angle bracket 27 slidable in the X-axis - Reference numeral 28 - is arranged. From Fig. 2 it can be seen that the workpiece carrier 20 is suitable for receiving a plurality of workpieces, as shown in Fig. 1. Each working surface of the roughly cube-shaped workpiece carrier 20 is capable of accommodating two workpieces 21a, 21b arranged parallel to one another, all of the cube surfaces being occupied, so that overall the workpieces 21a-21f can be processed.

The processing of each parallel juxtaposed workpiece 21a and b always takes place simultaneously. As well as the machining of the workpieces 21c and e and the workpieces 21f and g.

On the not graphically represented further surfaces of the

Workpiece carrier 20 are still clamped more workpieces. The workpiece carrier 20 is rotatably driven and controlled in the axis of rotation 22, which is designated in the direction of arrow 23 with B-axis.

The base part 2 has a rear recess 1, in which the

Control arrangement, the control boxes and other functions are arranged.

The L-shaped central portion 12 has a longer leg 13 and a shorter leg 14, which are material Einestöckig interconnected. FIG. 3 shows, as an alternative to the suspended bracket 27 according to FIG. 2, a linear support 27a, the components belonging thereto

Guide rails 29a are attached directly to the underside of the upper part 10. Overall, there is the advantage that by the L-shape of the Center section 12, the entire processing operations in the

Recess 11 take place.

Therefore, there is a particularly stable storage of the upper part on the L-shaped central portion 12 and at the same time to a weight-favorable arrangement.

1 also shows, in conjunction with the other figures, that one or more machining spindles 24 arranged parallel to one another are arranged so as to be movable close to the side surface of the base part in the region of guide rails 30, each machining spindle 25, 25a each having a tool spindle 26 driven in rotation , 26a carries.

Thus, the machining spindles 26, 26a in the direction of fall 24 (Y-axis) on the base part 2 can be moved.

FIG. 7 shows that each tool spindle 26, 26a is driven by a respective drive motor 33, 33a. Furthermore, it can be seen that a clamping device 34 for the clamping of the individual workpieces 21a-f is arranged on the angle bracket 27.

Alternatively, this clamping device 34 may also be attached to the linear support 27a.

FIG. 8 shows a machine park 40 consisting of a plurality of processing machines next to one another in the row.

Important in this embodiment is that the base part 12th

material Einstöckig is continuously formed and a continuous heavy-duty support bed 35 forms on which rest the individual L-shaped profiled middle parts 12 at a mutual distance. This is a highly resilient composite at low

Mass acceleration forces achieved and because of the massive continuous base part 2, the masses of the central part 12 and upper part 10 can be further reduced and this smaller dimensions are selected as compared to a WS-processing machine 1, which works alone in FIG. 1 to 7.

FIG. 9 shows the plan view of the arrangement according to FIG. 8, where it can be seen that the individual piece receivers 20a-20d lie in an aligned line and also the machining spindles 25, 25a-25d, so that also with regard to the control the modular juxtaposed processing machines 1 major simplifications. Instead of the arrangement of a continuous base part 35 with a continuous support bed 35 and the individual base parts with conventional

Connecting means are coupled together.

Fig. 6 also shows that the upper part 10 for weight reasons a

Bevel 36 may have.

Zeichnunqslegende

1 WS processing machine

2 base tales

3 front side

4 back side

5 front side (of 2)

6 front side (of 2)

7 deck area (out of 2)

8 floor space

9 floor space

10 shell

11 recess

12 middle part

13 I. thighs (out of 12)

14 r. Thighs (from 12)

15 transverse edge

16 longitudinal edge

17 front surface

18 floor space (out of 10)

19 front surface (from 12)

20 workpiece holder

21 workpiece a - f

22 axis of rotation

23 arrow direction (B-axis)

24 travel axis (Y axis)

25 machining spindle (from 2)

25a machining spindle (from 2)

26 tool spindle 26a

27 angle bracket 27a linear support

28 X-axis

29 guide rail 29a

30 guide rails (in 2) Upward motor 33a

Clamping device (for WS carrier) Support bed (formed by 7) Bevel

machinery

Claims

claims

1. Workpiece processing machine (1) with a machine frame (2, 10, 12), which consists of at least one base-side base part (2) on which at least one vertically aligned upper part (10) is arranged, wherein one or more machining spindle (25 , 25a, 26, 26a) perform the machining of at least one workpiece (21 af), which is clamped in at least one workpiece carrier (20), characterized in that the machine frame (2, 10, 12) of the processing machine (1) modularly assembled is and consists of at least three parts weighted only superimposed superimposed parts, namely a base part (2), an attached thereto middle part (12) and one on the middle part (12)

attached upper part (10).

2. Workpiece processing machine (1) according to claim 1, characterized in that the at least three modular parts (2, 10, 12) of the machine frame consist of a solid material with a high density.

3. Workpiece processing machine (1) according to claim 1 or 2, characterized in that the at least three parts (2, 10, 12) consist of a solid natural stone, in particular a granite and / or artificial stone.

4. Workpiece processing machine (1) according to one of claims 1 to 3, characterized in that the base part (2) is designed as a rectangular parallelepiped with rechteckfömigem cross section, that the central part (12) as an L-shaped profile part and that the upper part ( 10) is formed as a folded cuboid part.

5. Workpiece processing machine (1) according to one of claims 1 to 4, characterized in that the at least three parts (2, 10, 12) of the machine frame are put together only by virtue of the load with the respective weight without connecting means.

6. Workpiece processing machine (1) according to one of claims 1 to 5, characterized in that for forming a machine park (40) consisting of a plurality of similar workpiece processing machines (1), the base part (2) via a plurality of processing machines (1 ) extends through and forms a single continuous cuboid, on which the middle parts (12) and on the middle parts (12) patch

Upper parts (10) are placed

7. Workpiece processing machine (1) according to one of claims 1 to 5, characterized in that for forming a machine park (40) comprising a plurality of similar workpiece-processing machines, the individual base parts (2) of the individual WS-processing machines are mechanically coupled together, and / or that also the upper parts (10) and / or the middle parts. (12) are interconnected by connecting means

8. Workpiece processing machine (1) according to one of claims 1 to 5, characterized in that for forming a machine park (40) consisting of a plurality of similar workpiece-processing machines, the machine frame (2, 10, 12) of the workpiece-processing machines in a line side by side or side by side or back to back or corner are attached to each other.

9. Workpiece processing machine (1) according to one of claims 1 to 8, characterized in that the workpiece carrier (20) on the upper part (10) is arranged and that the machining spindles (25, 25a, 26, 26a) on the lower part (2) are arranged.

10. Workpiece processing machine (1) according to claim 9, characterized in that the workpiece carrier (20) is aligned in the horizontal axis and consists of an approximately cube-shaped or polygonal body on which a plurality of workpieces can be clamped.

11. Workpiece processing machine (1) according to claim 9 or 10,

characterized in that the polygonal workpiece carrier (20) is rotatably mounted in a horizontal axis of rotation (22) on the upper part (10) and in the region of guide rails in the horizontal direction is displaceable.

12. Workpiece processing machine (1) according to one of claims 1 to

11, characterized in that the one or more

Processing spindles (25, 25a, 26, 26a) with the rotatable there

recorded tools on the base part (2) are arranged and in the Y direction (24) are movable on associated guide rails.

13. Workpiece processing machine (1) according to one of claims 1 to

12, characterized in that the workpiece carrier (20) is attached in a suspended manner to an angle bracket (27) arranged on the upper part (10), which is movable in horizontally aligned guide rails (29),

14. Workpiece processing machine (1) according to one of claims 1 to 12, characterized in that the workpiece carrier (20) is attached to a hanging on the upper part (10) angle bracket (27), which is designed as a linear support (27a) and the guide rails (29a) are attached hanging on the underside of the upper part (10).

15. Machine park (4) characterized by a plurality of workpiece processing machines (1) which are interconnected.