DE102012107295A1 - Machine tool for processing workpiece, has workpiece spindle movement system which guides workpiece spindle unit to guide portion on machine base element which is not overlapped with another guide portion - Google Patents

Abstract

The machine tool has workpiece spindle units (30,120) comprising workpiece spindle axes (36,126) for driving workpiece spindles (34) attached with respective workpiece holders (38,128) for folding work pieces (W1,W2). A tool carrier unit (70) is provided with tool (84) which is guided to a guide portion (40) of machine base element (12) by a tool carrier movement system (80). A workpiece spindle movement system is used for guiding workpiece spindle unit to a guide portion (90) on machine base element which is not overlapped with guide portion (40).

Description

The invention relates to a machine tool comprising a machine frame, which has foot elements, which in turn are supported on a mounting surface for the machine frame, and which has a machine bed body which extends in a first direction, a first workpiece spindle unit arranged on the machine bed body, which is a first The first workpiece spindle has a first workpiece holder, in which a workpiece is fixable for machining, a first tool carrier unit with at least one first tool, which is guided by a first tool carrier movement system to a first guide portion of the machine bed body, which between the footprint and arranged by the first workpiece spindle axis and approximately parallel to the footprint extending transverse plane on the machine bed body, a second We workpiece spindle unit which comprises a second workpiece spindle which can be driven rotatably about a second workpiece spindle axis and which has a second workpiece holder into which a workpiece can be inserted for machining.

The approximately parallel to the footprint extending transverse plane, for example, parallel to the footprint or is inclined relative to the footprint, at most by an angle of up to 20 °.

Such machine tools are known from the prior art. In these machine tools, the task on the one hand to be able to realize as comprehensive as possible machining of a workpiece and on the other hand to achieve the most compact design possible optimal workpiece flow.

This object is achieved according to the invention in a machine tool of the type described above in that a workpiece spindle movement system carrying the second workpiece spindle unit is provided, that the workpiece spindle movement system is guided on a second guide region on the machine bed body and that the second guide region is arranged without overlapping to the first guide region on the machine bed body.

The advantage of the solution according to the invention is to be seen in the fact that it is possible to move the Werkstückspindelbewegungssystem independently of the Werkzeugträgerbewegungssystem by the overlapping freely arranged guide areas and thus optimally use the second workpiece spindle unit and the first tool carrier unit for the processing of a workpiece.

Alternatively or additionally, a further solution of the object according to the invention provides that a workpiece spindle movement system carrying the second workpiece spindle unit is provided which is guided on a second guide region of the machine bed body and the second guide region is arranged at a greater distance from the installation surface on the machine bed body than the first guide area.

This solution has the great advantage that there is the possibility, on the one hand, of achieving an optimum chip fall during the machining of the workpiece and, on the other hand, the possibility of using the first tool carrier unit and the second workpiece spindle unit independently of each other and optimally.

A further advantageous solution provides that the workpiece spindle movement system permits a movement of the second workpiece spindle unit into a machining position in which the distance of the second workpiece spindle axis from the mounting surface is greater than the distance of the first workpiece spindle axis from the mounting surface.

It is particularly favorable when the second workpiece holder is arranged at a distance from the transverse plane which corresponds at least to half the maximum workpiece diameter of the workpiece holder, more preferably at least the maximum workpiece diameter of the workpiece holder, particularly advantageously at least one and a half times the maximum workpiece diameter of the workpiece holder.

It is thus possible to place the second workpiece spindle unit for machining the workpiece arranged therein so that machining of the workpiece in the first workpiece spindle unit can take place independently of the machining of the second workpiece in the second workpiece spindle unit.

In order to ensure that the second workpiece spindle unit can also be positioned in a suitable manner relative to the first tool carrier unit and also the first workpiece spindle unit, it is preferably provided that the workpiece spindle movement system is designed such that it enables the second workpiece spindle axis to be moved in the machining plane.

Furthermore, it is preferably provided that the workpiece spindle movement system is designed such that it arranges the second Work spindle axis allows in a Koaxialstellung to the first workpiece spindle axis.

This solution has the advantage that a transfer of the workpiece from the first workpiece spindle unit into the second workpiece spindle unit is possible, so that in the first workpiece spindle unit a front side machining and in the second workpiece spindle unit can be carried out a back side machining of the workpiece, and thus a complete machining of a workpiece in the machine tool according to the invention can be realized.

Furthermore, it is preferably provided that the workpiece spindle movement system is designed so that it allows arranging the second workpiece spindle axis in a machining position in which the second workpiece holder is arranged on a side facing away from the footprint of the first workpiece spindle axis.

Thus, irrespective of whether the second workpiece spindle axis is parallel or transverse to the first workpiece spindle axis, it is possible to machine the workpiece in the second workpiece spindle unit independently of the machining of the workpiece in the first workpiece spindle unit, in particular machining the workpiece in the first workpiece spindle unit execute first tool carrier unit.

In particular, it is also provided that the workpiece spindle movement system is designed so that it allows arranging the second workpiece holder on a side facing away from the footprint of the transverse plane.

A further advantageous solution provides that the workpiece spindle movement system is designed such that it makes it possible to align the second workpiece spindle unit with a second workpiece spindle axis extending transversely to the first workpiece spindle axis.

Such a design of the workpiece spindle movement system has the great advantage that there is the possibility of aligning the workpiece in the second workpiece spindle unit for a variety of operations, in particular complete machining in different ways and thus align in different ways to each provided for editing tools ,

This alignment of the second workpiece spindle axis can be realized by different movements and devices.

In particular, the machine tool is designed such that the second workpiece spindle unit can be brought into different pivoting positions about a pivot axis, in which the second workpiece spindle axis encloses an angle in the range between 0 ° to 180 ° with the first workpiece spindle axis.

In this case, this range from 0 ° to 180 ° is in particular an area in which the angle of the second workpiece spindle axis and the first workpiece spindle axis should at least be able to extend, but the area can also extend on both sides by up to 10 °, preferably up to 20 °, ie for example, from -20 ° to 200 °.

With these pivot positions, it is possible to optimize the machining of the workpiece in the second workpiece spindle unit.

In any case, it is advantageous if the workpiece spindle unit can be brought into different pivoting positions, in which the second workpiece spindle axis encloses an angle in the range between 0 ° and 90 ° with the first workpiece spindle axis.

By specifying the orientation of the second workpiece spindle axis relative to the first workpiece spindle axis is not yet specified how the workpiece holder is to be aligned here.

For example, the workpiece holder could be aligned so that it faces away from the footprint at least in a part of the pivotal positions.

A particularly expedient solution provides, however, that in each of the pivot positions, the second workpiece holder of the second workpiece spindle unit faces either the first workpiece spindle unit or the footprint or the first workpiece spindle unit faces away.

With such an alignment of the workpiece holder, an optimal chip fall can be achieved, in particular when machining workpieces in the second workpiece spindle unit.

In particular, the pivotal positions can be realized in that the workpiece spindle movement system comprises a pivoting unit, with which the second workpiece spindle unit can be pivoted into at least one second pivot position about a pivot axis between the first pivot position, in which the second workpiece spindle axis runs parallel to the first workpiece spindle axis second Workpiece spindle axis transverse to the first workpiece spindle axis.

In this case, it is preferably provided that, in the first pivot position, the second workpiece holder faces the second workpiece spindle unit of the first workpiece spindle unit.

Furthermore, provision is expediently made for the workpiece holder of the workpiece spindle unit to face the first workpiece spindle unit or the installation surface in the at least one second pivot position.

A particularly favorable conception provides that, in the second pivoting position, the second workpiece holder of the workpiece spindle unit faces the first workpiece spindle axis or the transverse plane.

With regard to the orientation of the pivot axis about which the second workpiece spindle unit is to be pivotable, so far no further details have been made.

Thus, an advantageous solution provides that the pivot axis runs parallel to a transverse direction to the second workpiece spindle axis.

Furthermore, it is preferably provided that the pivot axis extends transversely to a working plane of the machine tool.

The working plane is defined by the plane which runs through the first workpiece spindle axis and parallel to an X-axis to the first workpiece spindle axis.

Furthermore, no details were given as regards the arrangement of the second guide region in connection with the previous explanation of the inventive concept of the machine tool.

Thus, an advantageous solution provides that the second guide region is arranged on one side of the machine bed body, which does not carry the first guide region, that is, is free from the first guide region.

As a result, it can be ensured in a simple manner that the first guide region and the second guide region do not overlap one another.

In particular, it is expedient for the second guide region to be arranged on a region of the machine bed body facing away from the mounting surface.

In this case, the second guide region can be arranged in a particularly stable and favorable manner without the distance between the machine bed body and the second workpiece spindle unit becoming too great and thus causing excessive levers which adversely affect the accuracy of the machine tool.

A particularly expedient solution provides for the second guide region to be arranged on a side of the machine bed body which is opposite the mounting surface.

A particularly expedient solution provides that the second guide region defines a second guide plane, which encloses an angle of a maximum of 40 ° with the footprint.

It is even better if the angle is a maximum of 30 °. A particularly favorable solution provides that the second guide region defines a second guide plane, which runs parallel to the footprint.

Furthermore, it is preferably provided that the second guide region defines a second guide plane, which runs transversely to the first guide plane, which defines the first guide region.

With regard to the mobility of the workpiece spindle movement system relative to the second guide region, no further details have so far been given.

Preferably, it is provided that with the workpiece spindle movement system, the second workpiece spindle unit is movable so that with this a mobility of the second workpiece spindle axis in a machining plane can be realized.

Thus, an advantageous solution provides that the workpiece spindle movement system comprises a second longitudinal slide which can be moved on the machine body of at least one second longitudinal guide.

Thus, the second workpiece spindle movement system allows a movement of the second workpiece spindle unit, in particular parallel to the first workpiece spindle axis, when the second longitudinal guide is arranged parallel to this on the machine bed body.

In order to be able to realize a further mobility of the workpiece spindle movement system for moving the second workpiece spindle unit with simple means, it is preferably provided that the workpiece spindle movement system a transversely movable to the second longitudinal guide cross slide.

In order to be able to position the second workpiece spindle unit optimally relative to tools provided for machining, it is preferably provided that the cross slide projects laterally beyond the second longitudinal slide with a slide area and carries the pivoting unit in the slide area projecting beyond the longitudinal slide.

This means that the pivot axis of the pivoting unit is arranged laterally next to the second longitudinal slide.

In particular, it is provided that the cross slide on its side facing the first workpiece spindle unit side has the second longitudinal carriage laterally projecting carriage area.

With regard to the guidance of the first tool carrier movement system at the first guide region relative to the machine bed body, no further details have been given so far.

A particularly favorable design of the first tool carrier movement system provides that with the first tool carrier movement system movement of the first tool carrier unit in a direction parallel to the first workpiece spindle axis Z-direction and in at least one transverse to the first workpiece spindle axis X-direction and transverse to the first workpiece spindle axis and transversely is executable to the X direction Y direction.

Thus, an advantageous solution provides that the first tool carrier movement system is movably guided on at least one longitudinal guide arranged in the first guide region.

Furthermore, it is preferably provided that the first tool carrier movement system is guided by means of a longitudinal slide on the at least one longitudinal guide.

With regard to the design of the first tool carrier unit so far no further details have been made.

Thus, an advantageous solution provides that the first tool carrier unit is designed as a tool turret.

Preferably, such a tool turret comprises a turret housing held by the tool carrier movement system and a turret head rotatable relative to the turret housing about a turret axis.

With regard to the alignment of the turret axis, no further details were given.

An advantageous solution provides that the turret axis runs parallel or at an acute angle of less than 30 ° to the first workpiece spindle axis.

A further advantageous embodiment provides that a second tool carrier movement system is provided on the machine bed body, with which a second tool carrier unit is movable relative to the machine bed body.

A particularly favorable design of the second tool carrier movement system provides that with the second tool carrier movement system, a movement of the second tool carrier unit in a direction parallel to the second workpiece spindle axis Z-direction and in at least one transverse to the second workpiece spindle axis X-direction and transverse to the second workpiece spindle axis and transversely is executable to the X direction Y direction.

For example, the second tool carrier movement system could be guided on a separate guide region on the machine bed body.

However, it is particularly favorable when the second tool carrier movement system is guided on the second guide region of the machine bed body.

In this case, separate longitudinal guides could be provided on the second guide region for the second tool carrier movement system.

It is particularly advantageous if the second tool carrier movement system is movably guided on the second longitudinal guides of the second guide region for the workpiece spindle movement system.

With regard to the arrangement of the second tool carrier movement system, no further details were given.

Thus, an advantageous solution provides that the second tool carrier movement system is arranged on the machine bed body between the workpiece spindle movement system and the first workpiece spindle unit.

The second tool carrier unit can be designed in various ways.

For example, it would be conceivable to use a revolver as the second tool carrier unit.

Alternatively, it is provided that the second tool carrier unit is designed as a tool spindle unit.

Such a tool spindle unit comprises, for example, a tool spindle housing in which a tool spindle is rotatably mounted about a tool spindle axis, wherein a driven tool can be inserted into a tool holder of the tool spindle.

Alternatively, it is conceivable to form the second tool carrier unit as a multi-tool carrier unit with driven tools.

For example, such a multi-tool carrier unit comprises a multi-tool carrier housing, on which a multi-tool carrier is rotatably mounted about a tool carrier axis.

In this case, the multiple tool carrier is preferably provided with a plurality of tool holders, in which either tools are used directly or tools with tool holders, which are themselves driven by a tool axis through the Mehrfachwerkzeugträgereinheit.

In a further preferred embodiment it is provided that a third tool carrier movement systems is arranged on the machine bed body, with which a third tool carrier unit is movable relative to the machine bed body.

A particularly favorable design of the third tool carrier movement system provides that with the third tool carrier movement system, a movement of the third tool carrier unit in a Z direction extending parallel to the first workpiece spindle axis and in at least one transverse to the first workpiece spindle axis X-direction and transverse to the first workpiece spindle axis and transversely is executable to the X direction Y direction.

With regard to the arrangement of the third tool carrier movement system, no further details have been given so far.

Thus, an advantageous solution provides that the third tool carrier movement system is arranged on the first guide region of the machine bed body.

In this case, the third tool carrier movement system could be guided on separate longitudinal guides.

It is particularly favorable when the third tool carrier movement system is guided on the longitudinal guides provided in the first guide region for the first tool carrier movement system.

Also, the third tool carrier unit may be formed in a variety of ways.

For example, it is provided that the third tool carrier unit is designed as a tool turret.

Alternatively or in addition to the embodiments described so far, the object mentioned at the outset is achieved by a machine tool in which, in particular, the workpiece spindle movement system is designed such that it enables the second workpiece spindle unit to move into a lower parallel machining position, in which the second workpiece spindle axis faces one of the mounting surface Side of the first workpiece spindle axis or the transverse plane is arranged.

Such a lower machining position has the advantage that with this the possibilities of the machine tool according to the invention can be optimally utilized in the smallest possible space in the longitudinal direction of the machine bed body.

In this case, in the simplest case, the workpiece spindle movement system may be designed so that no pivoting of the second workpiece spindle unit is provided, but merely a movement of the same in parallel machining positions.

However, the workpiece spindle movement system is preferably provided with a pivoting unit in order to be able to pivot the second workpiece spindle unit.

In particular, it is provided in such a machine tool that the workpiece spindle movement system permits a movement of the second workpiece spindle unit into a lower parallel machining position in which the maximum distance of the second workpiece spindle axis from the installation surface is smaller than the minimum distance of the first workpiece spindle axis from the installation surface.

A particularly optimal solution for exploiting the possibilities of the invention of the above-described machine tool provides that, in the lower parallel machining position of the second workpiece spindle unit, the second workpiece is machined by a tool of the first or third tool carrier unit.

A particularly compact design of the machine tool can be achieved with optimum processing options, if in the lower parallel machining position of the second workpiece spindle unit, the second workpiece carrier unit processing the first workpiece with a tool oriented approximately parallel to the first workpiece spindle axis and the first or third tool carrier unit machining the second workpiece in the direction the Z-axis extending parallel to the first workpiece spindle axis are movable relative to each other without collision, so that despite the compact design, the second tool carrier unit and the first or third tool carrier unit do not interfere with each other during their movements in the direction of the Z-axis.

In particular, it is provided in this solution that the second tool carrier unit is disposed on a side facing away from the footprint of the first tool carrier unit or the third tool carrier unit, thereby thereby despite processing the second workpiece simultaneously with the processing of the first workpiece, the length of the machine bed body 12 in its longitudinal direction can be kept low.

As an alternative or in addition to the solutions described so far, a further advantageous solution to the problem with a machine tool is that the workpiece spindle movement system is designed such that it enables the second workpiece spindle unit to move into an upper parallel machining position, in which the second workpiece spindle axis faces away from the mounting surface Side of the first workpiece spindle axis or the transverse plane is arranged.

This possibility of movement of the second workpiece spindle unit makes it possible to achieve a particularly compact construction of the machine tool according to the invention.

In this case, in the simplest case, the workpiece spindle movement system may be designed so that no pivoting of the second workpiece spindle unit is provided, but merely a movement of the same in parallel machining positions.

However, the workpiece spindle movement system is preferably provided with a pivoting unit in order to be able to pivot the second workpiece spindle unit.

In particular, it is provided that the workpiece spindle movement system permits a movement of the second workpiece spindle unit into an upper parallel machining position, in which the minimum distance of the second workpiece spindle axis from the installation surface is greater than the maximum distance of the first workpiece spindle axis from the installation surface.

Furthermore, an advantageous solution provides that, in the upper parallel machining position of the second workpiece spindle unit, the second workpiece is machined by a tool of the second tool carrier unit.

In this case, the tool of the second tool carrier unit can be aligned parallel to the second workpiece spindle axis or obliquely to this.

A particularly favorable solution provides that, in the upper parallel machining position of the second workpiece spindle unit, the second tool carrier unit processing the second workpiece with a tool oriented approximately parallel to the second workpiece spindle axis and the first or third tool carrier unit machining the first workpiece in the direction of the Z parallel to the first workpiece spindle axis -Axis are collision-freely movable to each other.

In particular, it is provided here that the second tool carrier unit is arranged on a side facing away from the footprint of the first tool carrier unit and thus movable without collision to the first tool carrier unit.

Alternatively or in addition to the solutions described so far provides a further advantageous solution of the task in a machine tool that the second workpiece spindle unit can be brought by means of the Werkstückspindelbewegungssystems one hand in a parallel machining position and on the other hand can be brought into a transverse machining position in which the second workpiece by means of tools one of first, second or third tool carrier units can be machined.

The advantage of this solution is the fact that this also makes it possible to design the machine bed body in its longitudinal direction with the least possible length and still create optimal processing options.

In particular, the transverse machining position, in which the second workpiece holder preferably points in the direction of the mounting surface, enables a very favorable possibility of machining the second workpiece with X-axis movements perpendicular to the second workpiece spindle axis, which are determined by Z, which is parallel to the first workpiece spindle axis -Achsbewegungen the tool carrier units and / or the workpiece spindle movement system can be realized very easily.

Also, Z-axis motions based on the second workpiece spindle axis can be easily realized by X-axis movements with respect to the first workpiece spindle axis, the tool carrier units, and / or the second workpiece spindle unit.

This can be processed in the longitudinal direction and large workpiece diameter especially at low extension of the machine bed body.

It is particularly advantageous in this case if the second workpiece in the transverse processing position can be processed by the tools of the first or third tool carrier unit, since with these in a simple manner, the second workpiece in the second workpiece spindle unit can be reached.

Furthermore, it is advantageously provided that the second workpiece in the parallel machining position can be processed by tools of the first or second tool carrier unit, since this is available in a simple manner in the parallel machining position.

Furthermore, in the parallel machining position, a transfer of the workpiece from the first workpiece spindle unit into the second workpiece spindle unit can also take place.

With regard to the alignment of the second workpiece spindle axis in the transverse machining position, no details have yet been given.

Advantageously, it is provided that the second workpiece spindle axis in the transverse machining position is preferably perpendicular to the first workpiece spindle axis or deviates from the vertical orientation to the first workpiece spindle axis by ± 20 °, better still by ± 10 ° or even better by ± 5 °.

With regard to the alignment of the second workpiece spindle axis in the respective parallel machining position, no further details have been given so far.

Thus, a particularly favorable solution provides that in the respective parallel machining position the second workpiece spindle axis deviates from a parallel alignment with the first workpiece spindle axis by a maximum of ± 20 °, better by a maximum of ± 10 ° or even better by ± 5 °.

Further, it is expediently provided with respect to the approximately parallel alignment of the tool of the second tool carrier unit in the processing of the first workpiece and the second workpiece, that this alignment in particular a parallel alignment of the tool to the respective tool spindle axis but also a deviation of up to ± 20 °, preferably one Deviation by up to ± 10 °, from the parallel orientation to the respective workpiece spindle axis provides.

Furthermore, it is provided in the respective parallel machining position that the minimum distance of the second workpiece spindle axis from the first workpiece spindle axis corresponds to at least half of the maximum provided diameter of the second workpiece, preferably equal to or greater than the maximum provided diameter of the second workpiece.

Further features and advantages of the invention are the subject of the following description and the drawings of some embodiments.

In the drawing show:

1 a plan view from the front of a first embodiment of a machine tool according to the invention;

2 a side view in the direction of arrow A of the first embodiment of the machine tool according to the invention, wherein in a first tool carrier unit one of the 1 appropriate tool is used;

3 a view similar 1 the first embodiment of the machine tool according to the invention with simultaneous machining of a first workpiece with a first tool carrier unit and a second workpiece with a second tool carrier unit;

4 a section along line 4-4 in 3 by the first embodiment of the machine tool according to the invention;

5 a view similar 1 of the first embodiment when machining the first workpiece with the second Tool carrier unit and the second workpiece with the first tool carrier unit;

6 a view similar 1 the first embodiment of the machine tool according to the invention during machining of the first workpiece by means of the second tool carrier unit and the second workpiece by means of the first tool carrier unit;

7 a representation similar 1 the first embodiment of the machine tool according to the invention when processing the first workpiece by means of the first and second tool carrier unit and placing the second workpiece on a transport device;

8th a view similar 1 a second embodiment of the machine tool according to the invention during machining of the first workpiece by means of the first tool carrier unit and by means of the second tool carrier unit and machining of the second workpiece by means of the third tool carrier unit;

9 a view similar 8th of the second embodiment when machining the first workpiece by means of the first tool carrier unit and the second tool carrier unit and processing of the second workpiece by means of the third tool carrier unit;

10 a representation similar 1 a third embodiment of a machine tool according to the invention during machining of the first workpiece by means of the second tool carrier unit and machining of the second workpiece by means of the first tool carrier unit;

11 a representation similar 10 of the third embodiment when machining the first workpiece by means of the second tool carrier unit and the second workpiece by means of the first tool carrier unit;

12 a representation similar 10 of the third embodiment when machining the first workpiece by means of the second tool carrier unit and the second workpiece in a lower parallel machining position by means of the first tool carrier unit

13 a representation similar 10 of the third embodiment when machining the first workpiece by means of the first tool carrier unit and the second workpiece by means of the second tool carrier unit;

14 a representation similar 1 a fourth embodiment of a machine tool according to the invention during machining of the first workpiece by means of the first and the second tool carrier unit and the second workpiece by means of the third tool carrier unit;

15 a representation similar 14 of the fourth embodiment when machining the first workpiece by means of the first tool carrier unit and the second workpiece by means of the second tool carrier unit and

16 a representation similar 14 of the fourth embodiment when machining the first workpiece by means of the first tool carrier unit and the second tool carrier unit and machining of the second workpiece by means of the third tool carrier unit.

A first embodiment of a machine tool according to the invention, shown in the 1 to 7 , includes a machine frame 10 which is a machine bed body 12 which has foot elements 14 on a footprint 16 is supported for the machine tool.

The machine bed body 12 extends with its longitudinal direction 18 from a first end 22 to a second end 24 ,

It is, for example, at the first end 22 as a whole with 26 designated headstock fixed, the headstock 26 a foot 28 includes, fixed to the machine bed body 12 connected, as well as one of the foot 28 held first workpiece spindle unit 30 includes, the spindle housing 32 firmly with the foot 28 is connected, wherein in the spindle housing 32 a first workpiece spindle 34 around a first workpiece spindle axis 36 is rotatably mounted.

Furthermore, the first workpiece spindle comprises 34 a first workpiece holder 38 with which a first workpiece W1 can be received and in the region of its first workpiece holder 38 protruding first workpiece side WS1 is machinable.

Through the first workpiece spindle axis 36 through one extends transversely to the footprint 16 extending processing level BE, parallel to which one for the Machining of the first workpiece W1 in the first workpiece spindle 34 provided X-axis, which is also perpendicular to the first workpiece spindle axis 36 extends.

Further, passes through the first workpiece spindle axis 36 also a perpendicular to the working plane BE extending transverse plane QE, parallel to which a Y-axis based on a processing of the first workpiece W1 in the first workpiece spindle 34 is aligned.

On the machine bed body 12 is on a front side facing the working plane BE 39 same a first management area 40 provided, in which on the one hand parallel to the longitudinal direction 18 and parallel to the first workpiece spindle axis 36 extending first longitudinal guides 42 and 44 are arranged, to which a first longitudinal slide 46 is guided parallel to a Z-direction.

In this case, that of the first longitudinal slide 46 in its movement along the first longitudinal guides 42 and 44 overrun area of the machine bed body 12 the first management area 40 of the machine bed body 12 ,

For example, the first guidance area defines 40 with the longitudinal guides 42 and 44 a first guide plane E1, parallel to which the first longitudinal slide 46 is movable.

This first guide plane E1 preferably extends transversely to the footprint 16 and parallel to the longitudinal direction 18 ,

The longitudinal slide 46 is thus parallel to the first workpiece spindle axis 36 and thus based on the first workpiece spindle axis 36 movable parallel to a Z-direction.

The longitudinal slide 46 in turn transversely, in particular perpendicular, to the first longitudinal guides 42 and 44 and parallel to the processing plane BE extending X-guides 52 to which an X-slide 56 is guided, so the X-slide 56 relative to the longitudinal slide 46 is movable parallel to the X direction.

Furthermore, the X-carriage carries 56 his turn Y-guides 62 and 64 to which a Y-slide 66 is guided movable parallel to the Y-direction.

The Y-sleigh 66 in turn carries a tool carrier unit 70 ,

The tool carrier unit 70 is in total relative to the machine bed body 12 by a first tool carrier movement system 80 movable, which the longitudinal slide 46 , the X-slide 56 as well as the Y-slide 66 includes.

For example, the tool carrier unit 70 formed by one as a whole with 72 designated first tool turret, which is a turret housing 74 and a relative to the revolver housing 74 around a turret axis 76 rotatable turret 78 has in the tool holders 82 first tools 84 can be mounted in a known manner.

Preferably, the first tool turret is 72 on one of the headstock 26 opposite side of the Y-carriage 66 arranged and also sits the turret 78 of the first tool turret 72 also on one of the headstock 26 opposite side of the turret housing 74 , so the total of the turret 78 in turn on one of the headstock 26 opposite side of the Y-carriage 66 is arranged.

On the machine bed body 12 is also a second guide area 90 provided, which, for example, in one of the footprint 16 remote area 88 , in particular on one of the footprint 16 opposite side of the machine bed body 12 is and, for example, also on one of the footprint 16 opposite side of the first guide area 40 lies, with the second guide area 90 collision-free and / or without overlap to the first guidance area 40 is arranged.

In the second management area 90 are second longitudinal guides 92 and 94 provided on which a second longitudinal slide 96 is guided.

This is the second management area 90 through the area of the machine bed body 12 defines which of the second longitudinal slide 96 in its movement along the longitudinal guides 92 . 94 overruns.

For example, the second guidance area defines 90 with the two longitudinal guides 92 . 94 a second guide plane E2, parallel to which the second longitudinal slide 96 is movable.

This second guide plane E2 preferably runs transversely to the first guide plane E1 and parallel to the longitudinal direction 18 ,

Preferably, the second longitudinal guides extend 92 and 94 in the second guide plane E2, which runs transversely to the working plane BE, in particular at an angle to the working plane BE, which lies between 60 ° and 120 °.

In particular, the second guide plane E2 extends perpendicular to the machining plane BE.

For example, it is provided in the illustrated embodiment that the second guide region 90 on a top 98 of the machine bed body 12 is provided.

The second longitudinal slide 96 is in turn with X-guides 102 and 104 which extend parallel to the X-axis and where an X-slide 106 is guided.

Furthermore, the X-guides are located 102 and 104 preferably in a plane parallel to the working plane BE level 108 ,

The X-slide 106 in turn carries in one over the second longitudinal slide 96 in the direction of the first spindle unit 30 protruding carriage area 107 one as a whole with 110 designated pivot unit with a pivot about a pivot axis 112 relative to the X-carriage 106 pivotable spindle holder 114 in which one as a whole with 120 designated second workpiece spindle unit is held, wherein the second workpiece spindle unit 120 a spindle housing 122 includes, in which a second workpiece spindle 124 about a second workpiece spindle axis 126 is rotatably mounted and wherein the second workpiece spindle 124 a second workpiece holder 128 in which a second workpiece W2 can be received and processed on a second workpiece side WS2.

The swivel unit 110 is designed so that with this the second workpiece spindle unit 120 is pivotable in any pivoting positions. In particular, this is a pivot drive provided with a high-ratio transmission, which greatly reduces a speed of a drive motor.

The second workpiece spindle axis 126 lies in the same way as the first workpiece spindle axis 36 in the working plane BE and is in the working plane BE by the second longitudinal slide 96 and the X-slide 106 movable, these together with the swivel unit 110 a workpiece spindle movement system 130 forming a movement of the second workpiece spindle unit 120 relative to the first workpiece spindle axis 36 allowed at least by a Z, X and B axis and possibly also by a Y axis.

Furthermore, the second workpiece spindle unit 120 with the swivel unit 110 around the pivot axis 112 pivotable, wherein the pivot axis 112 is particularly aligned so that the second workpiece spindle axis 126 when pivoting about the pivot axis 112 remains in the processing level BE.

The by the pivot unit 110 possible pivoting movement of the second workpiece spindle unit 120 around the pivot axis 112 includes as a first pivotal position the example in 1 and 2 illustrated pivot position, wherein the second workpiece spindle axis 126 with the X-direction is an angle in an angular range at most ± 20 °, preferably aligned parallel to the X-direction.

This first pivot position represents a transverse machining position Q for the second workpiece W2, in which the second workpiece W2, for example, by the first tool 84 the first tool carrier unit 70 is machinable, wherein in this processing of the second workpiece W2 on the first workpiece spindle axis 36 related Z-axis movement of the first tool carrier movement system 80 and the on the first workpiece spindle axis 36 related Z-axis movement of the workpiece spindle movement system 130 with respect to the second transverse or perpendicular to the first workpiece spindle axis 36 extending second workpiece spindle axis 126 represent an X-axis movement, so that in the transverse processing position Q of the second workpiece W2 large X-axis movements (relative to the second workpiece spindle axis 126 ) are available for large workpiece diameter and still the machine bed body 12 in the longitudinal direction 18 may have a small length.

Another through the swivel unit 110 possible pivot position of the second workpiece spindle unit 120 is in the 3 and 5 illustrated, in which case a parallel machining position P, the second workpiece spindle axis 126 with the first workpiece spindle axis 36 an angle of at most ± 20 °, preferably at most ± 10 ° and even better at most ± 5 °, in particular parallel to the first workpiece spindle axis 36 is aligned.

Further, it is preferably by the workpiece spindle movement system 130 a shift of the second workpiece spindle axis 126 such that it is coaxial with the first workpiece spindle axis 36 runs, so that a transfer of the workpiece W1 of the first workpiece spindle 34 in the second workpiece spindle 124 is possible, wherein a recording of the workpiece W1 in the region of its first workpiece side WS1 through the second workpiece holder 128 takes place, so that a processing of the now designated as workpiece W2 workpiece on the second workpiece side WS2 is possible, as provided in the known front and back side machining of workpieces.

In particular, in the solution according to the invention, the X-guides 102 and 104 dimensioned so that by means of the X-carriage 106 an X-travel path 132 that is a travel path of the X-carriage 106 in the X direction is possible, which allows once the second workpiece spindle unit 120 according to 5 position so that the second workpiece spindle axis 126 is in the transverse plane QE, preferably coaxial with the first workpiece spindle axis 36 is aligned, and on the other hand, the second workpiece spindle unit 120 to move so far in the X direction that when aligning the second workpiece spindle axis 126 parallel to the X direction, the second workpiece holder 128 on one of the footprint 16 opposite side of the transverse plane QE, in particular one of the footprint 16 opposite side of the first workpiece spindle axis 36 , lies, with the second workpiece holder 128 while the footprint 16 is facing.

In the first embodiment, shown in the 1 to 7 , is also the X-slide 106 designed so that the pivot axis 112 the swivel unit 120 on one side of the spindle carrier carriage 96 runs, which the headstock 26 and thus the first workpiece spindle unit 30 facing, wherein the pivot axis 112 while the longitudinal slide 96 does not cut, but runs laterally of the same.

In addition, the second workpiece spindle unit 120 around the pivot axis 112 pivotable in any intermediate positions, which in 6 are shown, in which case, for example, the second workpiece holder 128 the first tool turret 70 is facing.

Overall, thus, the second workpiece spindle unit 120 movable at least in an angular range, which is between the first workpiece spindle axis 36 parallel position and the transverse, in particular perpendicular, to the first workpiece spindle axis 36 extending position extends. Preferably, the possible pivot angle about the pivot axis 180 ° and more.

In all these positions of the second workpiece spindle unit 120 is the workpiece holder 128 the headstock 26 and / or the footprint 16 facing and / or the headstock 26 away.

In addition, the first embodiment of the machine tool according to the invention comprises a further second longitudinal slide 146 , for example, shown in 1 and 3 , this also on the second longitudinal guides 92 and 94 of the second guide area 90 is guided.

On the longitudinal slide 146 are also X-guides 152 and 154 provided, which is an X-slide 156 lead, which is a pivot unit 160 carries, with which a tool carrier holder 164 around a pivot axis 162 is pivotable, wherein the pivot axis 162 preferably transversely to the working plane BE, in particular perpendicular to this, and parallel to the Y-direction, that is also parallel to the transverse plane QE.

At the tool carrier holder 164 is in the first embodiment of the machine tool according to the invention designed as a tool spindle unit and as a whole with 170 designated second tool carrier unit, which is a tool spindle housing 172 in which, for example, a so-called heavy tool spindle 174 around a tool spindle axis 176 is rotatably mounted, wherein the tool spindle 174 a tool holder 178 in which a tool 182 which is either a drill or a milling cutter or a similar powered tool.

Preferably, the pivoting unit 160 further formed so that the tool spindle unit 170 not just about the pivot axis 162 pivotable but in the direction of the pivot axis 162 and thus is displaceable parallel to the Y-direction to the tool 182 to move to any desired position relative to the respective workpiece.

The longitudinal slide 146 and the X-slide 156 and the swivel unit 160 together form a second tool carrier movement system 180 for positioning the tool spindle unit 170 , Here is the tool spindle unit 170 on the one hand, as in 1 shown, positionable so that the tool spindle axis 176 parallel to the first workpiece spindle axis 36 aligned and the tool 182 the first workpiece W1 faces, the tool spindle unit 170 On the other hand, it is also rotatable so that the tool spindle axis 176 parallel to the second tool spindle axis 126 aligned and the tool 182 the second workpiece W2 faces, for example, in positions in which, such as in 4 shown, the tool spindle unit 170 and the second workpiece spindle unit 120 so far from one of the footprint 16 opposite side of the transverse plane QE or the first workpiece spindle axis 36 are arranged that, as in 4 illustrated, a processing of the second workpiece W2 in the second workpiece spindle unit 120 by means of the tool spindle unit 170 driven tool 182 collision-free to a machining of the first workpiece W1 by a tool 84 of the first tool turret 72 can be done.

With the first embodiment of the machine tool according to the invention a plurality of machining of a workpiece can be realized.

For example, a processing of the first workpiece W1 on its first workpiece side WS1 by the tool 182 the tool spindle unit 170 workable, as in 1 shown.

For this purpose, the tool spindle unit 170 , as in 1 shown, positioned so that their tool spindle axis 176 parallel to the first workpiece spindle axis 36 is aligned. In this case, the tool spindle axis 176 coaxial or only parallel to the first workpiece spindle axis 36 be aligned.

The tool spindle unit 170 but also, as in 5 illustrated, so used for processing the first workpiece side WS1 that the tool 182 transversely, in particular obliquely to the first workpiece spindle axis 36 runs so that also coaxial with the tool 182 aligned tool spindle axis 176 transversely, in particular obliquely, to the first workpiece spindle axis 36 is aligned.

In addition, a processing of the first workpiece side WS1 by one of the first tools 84 the first tool carrier unit 70 take place, whereby, as in 4 shown, both a processing of a front side S1 and a processing of a peripheral side U1 of the first workpiece side WS1 by one of the first tools 84 is possible.

Furthermore, the machining of the second workpiece W2 takes place on the second workpiece side in the second workpiece spindle unit 120 also in different ways.

Thus, there is the possibility of the second workpiece W2 on the second workpiece side WS2, as in 1 represented by one of the first tools 84 to edit, with the possibility exists, the workpiece W2 on its peripheral side U2 by one of the first tools 84 the first tool carrier unit 70 to edit. For this purpose, preferably the second workpiece spindle axis extends 126 transverse to the first workpiece spindle axis 36 , in particular vertically, so that the movement of the first tool 84 by moving the first tool carrier movement system 80 along the first longitudinal guides 42 and 44 for this processing corresponds to a movement in an X-direction.

Likewise, there is also the possibility of using one of the first tools 84 to edit the end face S2 of the second workpiece W2, for which purpose preferably the second workpiece spindle unit 120 with its second workpiece spindle axis 126 is aligned so that these, for example, parallel to the first longitudinal guides 42 and 44 is aligned.

In addition, there is still a processing of the second workpiece side WS2 of the second workpiece W2 with the tool 182 the tool spindle unit 170 possible, in which case both the second workpiece spindle unit 120 as well as the tool spindle unit 170 on one of the first tool carrier unit 70 opposite side of the transverse plane QE so far from the first workpiece spindle axis 36 and the transverse plane QE away, even away from the first tool carrier unit 70 are moved that both the tool spindle unit 170 as well as the second workpiece spindle unit 120 relative to each other without collision to the first workpiece W1 and to the first tools 84 the first tool carrier unit 70 are movable.

In this case, the second workpiece spindle axis 126 and the tool spindle axis 176 parallel to each other, aligned with each other or at an angle to each other, as long as the second workpiece spindle unit 120 and the tool spindle unit 170 collision-free to the first workpiece W1 and to a processing on this first tool 84 are arranged.

Furthermore, as in 7 illustrated, the possibility in the second pivot position of the second workpiece spindle unit 120 in which the workpiece holder 128 the footprint 16 facing, the second workpiece W2 on a transport device 186 to remove for removal, or to record for processing, the second workpiece spindle unit 120 by the workpiece spindle movement system 130 in the X direction on the transport device 186 must be moved while parallel to a processing of the first workpiece W1 with the first tool carrier unit 70 and the second tool carrier unit 170 can be done.

In a second embodiment, a machine tool according to the invention, shown in FIG 8th and 9 are those elements which are identical to those of the first embodiment, provided with the same reference numerals, so that full content can be made to the comments on the first embodiment reference.

In contrast to the first embodiment, in the second embodiment, at the first guide region 40 of the machine bed body 12 a third tool carrier movement system 190 provided and parallel to the first longitudinal guides 42 and 44 , preferably on the first longitudinal guides 42 and 44 led, which a longitudinal slide 196 includes, in the same Way like the longitudinal slide 46 X guides 202 carries, on which a so-called X-carriage transversely, preferably perpendicular to the first workpiece spindle axis 36 is movably guided.

The X-slide 206 again carries Y-guides 212 and 214 to which a Y-slide 216 parallel to these Y-guides 212 and 214 is movably guided.

Furthermore, the Y-carriage carries 216 this in turn a third tool carrier unit 220 , For example, the third tool carrier unit 220 formed by one as a whole with 222 designated second tool turret, which is a turret housing 224 and a relative to the second turret housing 224 around a turret axis 226 rotatable turret 228 in whose toolholders 232 second tools 234 can be mounted in a known manner.

Through the third tool carrier unit 220 Thus it is possible with the second tools 234 the same, for example, to process the workpiece W2, both in the region of its end face S2 and in the region of its peripheral side U2.

At the same time, however, it is also possible to use the first tool carrier unit 70 the workpiece W1, for example, in the region of its end face S1 with one of the first tools 84 to edit, and at the same time provide a processing of the first workpiece W1 in the region of its peripheral side U1, as also in 8th represented, in which case the tool 182 as a tool spindle unit 170 trained second tool carrier unit is used.

Thus, in the second embodiment of the machine tool according to the invention, for example, it is possible to reduce the processing time of the first workpiece W1, in which simultaneously the processing thereof by one of the first tools 84 and one of the third tools 234 ,

Incidentally, the features of the second embodiment, which are identical to those of the first embodiment, provided with the same reference numerals, so that with respect to the description of the same can be made in full to the comments on the first embodiment.

In a third embodiment, shown in the 10 to 12 are also those parts which are identical to those of the preceding embodiments, provided with the same reference numerals, so that with respect to the description of the same fully incorporated by reference to the statements to the preceding embodiments.

In contrast to the first and second embodiments, in the third embodiment, instead of the second tool carrier unit forming tool spindle unit 170 a multiple tool carrier unit 250 provided for driven tools as a second tool carrier unit, which is a Mehrfachwerkzeugträgergehäuse 252 on which a multiple tool carrier 254 around a tool carrier axis 256 is rotatably supported, wherein the multiple tool carrier 254 a variety of tool holders 258 includes in which tool holder 262 with powered tools 264 can be used.

In the multi-tool carrier housing 252 At least one tool drive, not shown in the drawing, is provided, which is at least capable of the tool 264 a standing in tool position tool holder 262 drive.

Thus, there is the possibility, such as in 10 to 12 illustrated, the first workpiece W1 with several different driven tools 264 to edit if they are each in the first workpiece W1 facing working position. This is a tool axis 266 to which the tool 264 is rotationally driven in the working position, either parallel or obliquely to the first workpiece spindle axis 36 alignable, but it is also possible, such as in 11 shown, the tool axis 266 transversely, in particular perpendicular to the first workpiece spindle axis 36 align.

The orientation of the tool axis 266 done by turning the multiple tool carrier housing 252 around the pivot axis 162 the swivel unit 160 , in which case the pivot axis 162 the tool carrier axis 256 cuts and the tool axis 266 again the tool carrier axis 256 cuts, but the tool axis 266 in the direction of the tool carrier axis 256 relative to the pivot axis 162 is offset.

For example, the tool axis lies 266 in a tool level 268 in which, for example, all central axes of the tool holders 258 lie, with the tool level 268 transversely, preferably perpendicular to the tool carrier axis 256 runs and at a distance from the pivot axis 162 , preferably parallel to the pivot axis 262 but at the stated distance from this.

A pivoting movement of the multi-tool carrier unit 250 around the pivot axis 162 Has thus the effect that either the tool level 268 on one of the first workpiece spindle axis 36 facing side of the pivot axis 162 is located, preferably so far in the direction of the first workpiece spindle axis 36 is movable, that also the first workpiece spindle axis 36 in the tool level 268 is this cuts.

To be in the position of the multi-tool carrier unit 250 in which in the example of the multi-tool carrier unit 250 the tool level 268 on the first workpiece spindle axis 36 facing side of the pivot axis 162 lies and thus the tool axis 266 of the tool processing the first workpiece W1 264 parallel or obliquely at an angle of up to 20 ° to the first workpiece spindle axis 36 runs, optimal to be able to process the second workpiece W2 is, as in 12 illustrated, the second workpiece spindle unit 120 by means of the workpiece spindle movement system 130 movable in a lower parallel machining position, in which the second workpiece spindle axis 126 on one of the footprint 16 facing side of the first workpiece spindle axis 36 or the transverse plane QE is arranged.

In the lower parallel machining position UP of the second workpiece spindle unit 120 is the second workpiece spindle axis 126 preferably parallel to the first workpiece spindle axis 36 aligned or deviates from a parallel alignment by a maximum of ± 20 °, even better by a maximum of ± 10 °, preferably a maximum of ± 5 °, so that the first workpiece spindle axis 36 and the second workpiece spindle axis 126 essentially parallel to each other.

Further, the distance of the second workpiece spindle axis 126 from the first workpiece spindle axis 36 chosen so that in the lower parallel machining position UP the minimum distance of the second workpiece spindle axis 126 from the first workpiece spindle axis 36 at least half of the maximum intended diameter of the second workpiece W2 corresponds, but preferably is greater and corresponds for example to at least the maximum provided diameter of the second workpiece W2.

In particular, the possibility exists in the lower parallel machining position that in the second workpiece spindle unit 120 received second workpiece W2 by a tool 84 the first tool carrier unit 70 to machine frontally or peripherally, without any collision of the tool 84 or the first tool carrier unit 70 with the multi-tool carrier unit provided as a second tool carrier unit 250 he follows.

In such a lower parallel machining position thus the possibility is opened, the machine tool with the expansion of the machine bed body 12 in the longitudinal direction 18 to build as short as possible, without the most diverse processing options of the first workpiece W1 and the second workpiece W2 with the first 70 or third 220 Hinder tool carrier unit.

In particular, in the lower parallel machining position, the possibility exists of the multiple tool carrier unit 250 to use that with their tool axes 266 in the tool level 268 lying tools 264 are aligned so that the tool level 268 parallel to the first workpiece spindle axis 36 runs, preferably even coincide with this, without a collision between the Mehrfachwerkzeugträgergehäuse 252 the multi-tool carrier unit 250 and the tool 84 the first tool carrier unit 80 can be done when both the first tool carrier unit 70 as well as the multiple tool carrier unit 250 be moved in the Z direction in the processing of the respective workpieces W2 and W1.

Based on the arrangement of the second tool carrier unit 250 according to 12 a pivoting movement about the pivot axis 162 180 °, this is the tool level 268 , as in 13 shown on one of the first workpiece spindle axis 36 opposite side of the pivot axis 162 , wherein in this position the multi-tool carrier unit 250 the powered tool in working position 264 the second workpiece spindle unit 120 assigned and facing.

In this case, the second workpiece spindle unit stands 120 in its upper parallel machining position OP, in which the second workpiece spindle axis 126 on the footprint 16 opposite side of the first workpiece spindle axis 36 or the transverse plane QE is arranged.

In particular, it is provided that by the workpiece spindle movement system 130 moving the second workpiece spindle unit 120 in the upper parallel machining position OP is performed, in which the minimum distance of the second workpiece spindle axis 126 from the footprint 16 greater than the maximum distance of the first workpiece spindle axis 36 from the footprint 16 ,

Also in the upper parallel machining position OP of the second workpiece spindle unit 120 is the second workpiece spindle axis 126 preferably parallel to the first workpiece spindle axis 36 aligned or deviates from the parallel orientation by a maximum of ± 20 °, more preferably by a maximum of ± 10 °, and preferably by a maximum of ± 5 °.

Further, in the upper parallel machining position OP, the minimum distance of the second workpiece spindle axis 126 from the first workpiece spindle axis 36 greater than half of the maximum intended diameter of the second workpiece W2 even better than the maximum provided diameter of the second workpiece W2.

In particular, the upper parallel machining position allows the second workpiece spindle unit 120 an editing of the second workpiece W2 with the tool 264 , wherein the tool axis 266 approximately parallel to the second workpiece spindle axis 126 may be aligned, wherein the approximately parallel orientation means that a deviation of a maximum of 20 °, preferably a maximum of 10 °, of the exact parallel alignment of the tool axis to the second workpiece spindle axis 126 is possible.

In particular, it is provided that the first workpiece W1 with the tool 84 machining first tool carrier 70 in the direction parallel to the first workpiece spindle axis 36 extending Z-axis together with the tool 84 collision-free to multiple tool carrier housing 252 the second tool carrier unit is movable.

Also, this arrangement of the upper parallel machining position OP allows the machine bed body 12 in its longitudinal direction 18 to build as short as possible, without the various processing options of the first workpiece W1 and / or the second workpiece W2 with the various tool carrier units, for example, the first tool carrier unit 70 or the second tool carrier unit 250 to restrict.

In particular, in the third embodiment, the workpiece spindle moving system 130 designed such that it has a sufficiently large travel path transverse to the first workpiece spindle axis 36 , in particular in the X direction, for the second workpiece spindle unit 120 permitting, in the lower parallel machining position UP according to 12 the distance of the second workpiece spindle axis 126 from the footprint 16 For example, the smallest possible distance from this, while the distance of the second workpiece spindle axis 126 from the footprint 16 in the upper parallel machining position OP according to 13 preferably the maximum possible distance of this second workpiece spindle axis 126 from the footprint 16 is.

In particular, it is particularly when using the Mehrfachwerkzeugträgers 250 as a second tool carrier unit for a coaxial alignment of the second workpiece spindle axis 126 to the tool axis 266 required in this case, the second workpiece spindle unit 120 sufficiently from the first workpiece spindle axis 36 to move away.

Is the workpiece spindle movement system 130 designed so that in the upper parallel machining position OP such a large distance of standing in working position tool 264 and also the multi-tool carrier unit 250 from the first workpiece spindle unit 30 and the first tool carrier unit 70 is feasible, so is at a very short in the longitudinal direction 18 building machine tool a collision-free machining of the second workpiece W2 by means of the driven tool 264 possible, without affecting the processing of the first workpiece W1 by the first tool carrier unit 70 he follows.

Incidentally, the same processing options can be realized in the third embodiment as in the first embodiment, so that reference is made in this respect to the comments on the first embodiment in full.

In a fourth embodiment, shown in the 14 to 16 is in the same manner as in the third embodiment, the Mehrfachwerkzeugträgereinheit 250 provided with the same, explained in connection with the third and first embodiment processing options.

Further, in contrast to the third embodiment, in addition to the first tool carrier unit 70 the third tool carrier unit described in connection with the second embodiment 220 provided by the third tool carrier movement system 190 , which has also been explained in connection with the second embodiment, is movable.

With respect to the third tool carrier unit 220 provided processing options will be made to the comments on the second and third embodiment supplementary reference.

In the fourth embodiment, in the lower parallel machining position UP of the second workpiece spindle unit takes place 120 a machining of the second workpiece W2 primarily with a tool 234 the third tool carrier unit 220 ,

Incidentally, those elements which are identical to those of the preceding embodiments, provided with the same reference numerals, so that in this respect, the contents of the preceding embodiments may be taken in full.

Claims (55)

Machine tool comprising a machine frame ( 10 ), which foot elements ( 14 ), which in turn on a footprint ( 16 ) for the machine frame ( 10 ), and which a machine bed body ( 12 ) extending in a first direction ( 18 ), one on the machine bed body ( 12 ) arranged first workpiece spindle unit ( 30 ), which one around a first workpiece spindle axis ( 36 ) rotatably driven first workpiece spindle ( 34 ), wherein the first workpiece spindle ( 34 ) a first workpiece holder ( 38 ), in which a workpiece (W1) can be fixed for machining, a first tool carrier unit ( 70 ) with at least one first tool ( 84 ) by means of a first tool carrier movement system ( 80 ) at a first management area ( 40 ) of the machine bed body ( 12 ) is guided, which between the footprint ( 16 ) and one through the first workpiece spindle axis ( 36 ) and approximately parallel to the footprint ( 16 ) extending transverse plane (QE) on the machine bed body ( 12 ), a second workpiece spindle unit ( 120 ), which one around a second workpiece spindle axis ( 126 ) rotatably driven second workpiece spindle ( 124 ) comprising a second workpiece holder ( 128 ), in which a workpiece (W2) can be used for machining, characterized in that a second workpiece spindle unit ( 120 ) carrying workpiece spindle movement system ( 130 ), it is provided that the workpiece spindle movement system ( 130 ) at a second management area ( 90 ) on the machine bed body ( 12 ) and that the second management area ( 90 ) without overlapping to the first guidance area ( 40 ) on the machine bed body ( 12 ) is arranged. Machine tool according to the preamble of claim 1 or claim 1, characterized in that a second workpiece spindle unit ( 120 ) carrying workpiece spindle movement system ( 130 ) provided at a second management area ( 90 ) of the machine bed body ( 12 ) and that the second management area ( 90 ) at a greater distance from the footprint ( 16 ) on the machine bed body ( 12 ) is arranged as the first guidance area ( 40 ). Machine tool according to claim 1 or 2, characterized in that the workpiece spindle movement system ( 130 ) moving the second workpiece spindle unit ( 120 ) in a machining position permits, in which the distance of the second workpiece spindle axis ( 126 ) from the footprint ( 16 ) is greater than the distance of the first workpiece spindle axis ( 36 ) from the footprint ( 16 ). Machine tool according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) is configured such that it moves the second workpiece spindle axis ( 126 ) in the working plane (BE). Machine tool according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) is arranged such that it arranges the second workpiece spindle axis ( 126 ) in a coaxial position to the first workpiece spindle axis ( 36 ). Machine tool according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) is arranged such that it arranges the second workpiece spindle axis ( 126 ) in a machining position in which the second workpiece spindle receptacle ( 128 ) on one of the footprint ( 16 ) facing away from the first workpiece spindle axis ( 36 ) is arranged. Machine tool according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) is configured such that it aligns the second workpiece spindle unit ( 120 ) with a transverse to the first workpiece spindle axis ( 36 ) extending second workpiece spindle axis ( 126 ). Machine tool according to one of the preceding claims, characterized in that the second workpiece spindle movement system ( 130 ) a pivoting unit ( 110 ), with which the second workpiece spindle unit ( 120 ) in different pivot positions about a pivot axis ( 112 ) can be brought, in which the second workpiece spindle axis ( 126 ) with the first workpiece spindle axis ( 36 ) includes an angle in the range between 0 ° and 180 °. Machine tool according to one of the preceding claims, characterized in that in each of the pivot positions, the second workpiece holder ( 128 ) of the second workpiece spindle unit ( 120 ) either the first workpiece spindle unit ( 30 ) or the footprint ( 16 ) or the first workpiece spindle unit ( 30 ) is turned away. Machine tool according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) a pivoting unit ( 110 ), with which the second workpiece spindle unit ( 120 ) about a pivot axis ( 112 ) between a first pivot position, in which the second workpiece spindle axis ( 126 ) parallel to the first workpiece spindle axis ( 36 ), and at least a second pivot position is pivotable, in which the second workpiece spindle axis ( 126 ) transverse to the first workpiece spindle axis ( 36 ) runs. Machine tool according to one of the preceding claims, characterized in that in the first pivot position, the second workpiece holder ( 128 ) of the second workpiece spindle unit ( 120 ) of the first workpiece spindle unit ( 30 ) is facing. Machine tool according to one of the preceding claims, characterized in that in the second pivot position, the workpiece holder ( 128 ) of the workpiece spindle unit ( 120 ) of the first workpiece spindle unit ( 30 ) or the footprint ( 16 ) is facing. Machine tool according to one of the preceding claims, characterized in that in the second pivot position, the second workpiece holder ( 128 ) of the workpiece spindle unit ( 120 ) of the first workpiece spindle axis ( 36 ) or the transverse plane (QE) faces. Machine tool according to one of the preceding claims, characterized in that the pivot axis ( 112 ) parallel to a transverse direction to the second workpiece spindle axis ( 126 ) runs. Machine tool according to one of the preceding claims, characterized in that the pivot axis ( 112 ) runs transversely to a working plane (BE) of the machine tool. Machine tool according to one of the preceding claims, characterized in that the second guide region ( 90 ) on one side of the machine bed body ( 12 ) which is not the first management area ( 40 ) wearing. Machine tool according to one of the preceding claims, characterized in that the second guide region ( 90 ) on one of the footprint ( 16 ) facing away from the area of the machine bed body ( 12 ) is arranged. Machine tool according to one of the preceding claims, characterized in that the second guide region ( 90 ) on one of the footprint ( 16 ) opposite side of the machine bed body ( 12 ) is arranged. Machine tool according to one of the preceding claims, characterized in that the second guide region ( 90 ) Defines a second guide plane (E2), which includes an angle of maximum 40 ° with the footprint. Machine tool according to one of the preceding claims, characterized in that the second guide region ( 90 ) defines a second guide plane (E2), which leads to the footprint ( 16 ) runs parallel. Machine tool according to one of the preceding claims, characterized in that the second guide region ( 90 ) defines a second guide plane (E2) which runs transversely to a first guide plane (E1), which the first guide section (E1) 40 ) Are defined. Machine tool according to one of the preceding claims, characterized in that with the workpiece spindle movement system ( 130 ) the second workpiece spindle unit ( 120 ) is movable so that with this a mobility of the second workpiece spindle axis ( 128 ) can be realized in a processing level. Machine tool according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) one on the machine bed body ( 12 ) along at least one second longitudinal guide ( 92 . 94 ) movable second longitudinal slide ( 96 ). Machine tool according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) one transverse to the second longitudinal guide ( 92 . 94 ) movable cross slide ( 106 ). Machine tool according to claim 24, characterized in that the cross slide ( 106 ) with a carriage area ( 107 ) the second longitudinal slide ( 96 ) projected laterally and in which the longitudinal slide ( 96 ) superior carriage area ( 107 ) the pivoting unit ( 110 ) wearing. Machine tool according to claim 24 or 25, characterized in that the cross slide ( 106 ) on its first workpiece spindle unit ( 30 ) facing side of the second longitudinal slide ( 96 ) laterally projecting carriage area ( 107 ) having. Machine tool according to one of the preceding claims, characterized in that with the first tool carrier movement system ( 80 ) a movement of the first tool carrier unit ( 70 ) in a parallel to the first workpiece spindle axis ( 36 ) extending Z-direction and in at least one transverse to the first workpiece spindle axis ( 36 ) running X-direction and a transverse to the X direction Y-direction is executable. Machine tool according to one of the preceding claims, characterized in that the first tool carrier movement system ( 80 ) at least one in the first guidance area ( 40 ) arranged first longitudinal guide ( 42 . 44 ) is movably guided. Machine tool according to one of the preceding claims, characterized in that the first tool carrier movement system ( 80 ) by means of a longitudinal slide ( 46 ) on the at least one longitudinal guide ( 42 . 44 ) is guided. Machine tool according to one of the preceding claims, characterized in that the first tool carrier unit ( 70 ) as a tool turret ( 72 ) is trained. Machine tool according to one of the preceding claims, characterized in that the tool turret ( 72 ) one of the tool carrier movement system ( 80 ) held turret housing ( 74 ) and a relative to the revolver housing ( 74 ) about a revolver axis ( 76 ) rotatable turret ( 78 ) having. Machine tool according to claim 31, characterized in that the turret axis ( 76 ) parallel or at an acute angle of less than 30 ° to the first workpiece spindle axis ( 36 ) runs. Machine tool according to one of the preceding claims, characterized in that on the machine bed body ( 12 ) a second tool carrier movement system ( 180 ) is provided, with which a second tool carrier unit ( 170 ) relative to the machine bed body ( 12 ) is movable. Machine tool according to claim 33, characterized in that with the second tool carrier movement system ( 180 ) a movement of the second tool carrier unit ( 170 ) in a parallel to the second workpiece spindle axis ( 36 ) extending Z-direction and in at least one transverse to the second workpiece spindle axis ( 36 ) running X-direction and a transverse to the second workpiece spindle axis and transverse to the X direction Y-direction is executable. Machine tool according to one of claims 33 or 34, characterized in that the second tool carrier movement system ( 180 ) at the second guide area ( 90 ) of the machine bed body ( 12 ) is guided. Machine tool according to one of the preceding claims, characterized in that the second tool carrier movement system ( 180 ) on the second longitudinal guides ( 92 . 94 ) of the second management area ( 90 ) are movably guided. Machine tool according to one of claims 33 to 36, characterized in that the second tool carrier movement system ( 180 ) on the machine bed body ( 12 ) between the workpiece spindle movement system ( 130 ) and the first workpiece spindle unit ( 30 ) is arranged. Machine tool according to one of the preceding claims, characterized in that on the machine bed body ( 12 ) a third tool carrier movement system ( 190 ) is arranged, with which a third tool carrier unit ( 220 ) relative to the machine bed body ( 12 ) is movable. Machine tool according to claim 38, characterized in that with the third tool carrier movement system ( 190 ) a movement of the third tool carrier unit ( 220 ) in a parallel to the first workpiece spindle axis ( 36 ) extending Z-direction and in at least one transverse to the first workpiece spindle axis ( 36 ) running X-direction and a transverse to the first workpiece spindle axis and transverse to the X direction Y-direction is executable. Machine tool according to claim 38 or 39, characterized in that at the first guide area ( 40 ) of the machine bed body ( 12 ) the third tool carrier movement system ( 190 ) is arranged. Machine tool according to one of claims 38 to 40, characterized in that the third tool carrier movement system ( 190 ) to those in the first management area ( 40 ) provided longitudinal guides ( 42 . 44 ) for the first tool carrier movement system ( 80 ) is guided. Machine tool according to one of claims 38 to 41, characterized in that the third tool carrier unit ( 220 ) as a tool turret ( 222 ) is trained. Machine tool according to the preamble of claim 1, or according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) moving the second workpiece spindle unit ( 120 ) into a lower parallel machining position (UP), in which the second workpiece spindle axis ( 126 ) on one of the footprint ( 16 ) facing side of the first workpiece spindle axis ( 36 ) or the transverse plane (QE) is arranged. Machine tool according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) moving the second workpiece spindle unit ( 120 ) in a lower parallel machining position (UP) permits, in which the maximum distance of the second workpiece spindle axis ( 126 ) from the footprint ( 16 ) is smaller than the minimum distance of the first workpiece spindle axis ( 36 ) from the footprint ( 16 ). Machine tool according to claim 43 or 44, characterized in that in the lower parallel machining position (UP) of the second workpiece spindle unit ( 120 ) a machining of the second workpiece (W2) by a tool ( 84 . 234 ) the first ( 70 ) or third ( 220 ) Tool carrier unit takes place. Machine tool according to claim 45, characterized in that in the lower parallel machining position (UP) of the second workpiece spindle unit ( 120 ) the first workpiece (W1) with an approximately parallel to the second workpiece spindle axis ( 126 ) aligned second tool carrier unit ( 170 ) and the first workpiece (W2) processing ( 70 ) or third ( 220 ) Tool carrier unit in the direction parallel to the first workpiece spindle axis ( 36 ) Z-axis are collision-freely movable to each other. Machine tool according to the preamble of claim 1, or according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) moving the second workpiece spindle unit ( 120 ) in an upper parallel machining position (OP), in which the second workpiece spindle axis ( 126 ) on one of the footprint ( 16 ) facing away from the first workpiece spindle axis ( 36 ) or the transverse plane (QE) is arranged. Machine tool according to one of the preceding claims, characterized in that the workpiece spindle movement system ( 130 ) moving the second workpiece spindle unit ( 120 ) in an upper parallel machining position (OP), in which the minimum distance of the second workpiece spindle axis ( 126 ) from the footprint ( 16 ) is greater than the maximum distance of the first workpiece spindle axis ( 36 ) from the footprint ( 16 ). Machine tool according to claim 47 or 48, characterized in that in the upper parallel machining position (OP) of the second workpiece spindle unit ( 120 ) a machining of the second workpiece (W2) by a tool ( 182 ) of the second tool carrier unit ( 170 ) he follows. Machine tool according to claim 49, characterized in that in the upper parallel machining position (OP) of the second workpiece spindle unit ( 120 ) the second workpiece ( 2 ) with an approximately parallel to the second workpiece spindle axis ( 126 ) oriented tool ( 182 . 264 ) second tool carrier unit ( 170 . 250 ) and the first workpiece (W1) processing first ( 70 ) Tool carrier unit in the direction parallel to the first workpiece spindle axis ( 36 ) Z-axis are collision-freely movable to each other. Machine tool according to one of claims 43 to 50, characterized in that in the respective parallel machining position (P), the second workpiece spindle axis ( 126 ) from a parallel alignment to the first workpiece spindle axis ( 36 ) deviates by a maximum of 10 °, better still a maximum of 5 °. Machine tool according to one of claims 43 to 51, characterized in that in the respective parallel machining position (P) of the minimum distance of the second workpiece spindle axis ( 126 ) from the first workpiece spindle axis ( 36 ) corresponds to at least half of the maximum intended diameter of the second workpiece (W2). Machine tool according to the preamble of claim 1 or any one of the preceding claims, characterized in that the second workpiece spindle unit ( 120 ) by means of the workpiece spindle movement system ( 130 ) on the one hand in a parallel machining position (P) and on the other hand in a transverse machining position (Q) can be brought, in which the second workpiece (W2) by means of tools ( 84 . 182 . 266 . 234 ) one of the first or second or third tool carrier units ( 70 . 170 . 250 . 220 ) is editable. Machine tool according to claim 53, characterized in that the second workpiece (W2) in the transverse machining position (Q) by the tools ( 84 . 234 ) of the first or third tool carrier unit ( 70 . 220 ) is editable. Machine tool according to claim 53 or 54, characterized in that the second workpiece (W2) in the parallel machining position (P) by tools ( 182 . 266 ) the first ( 70 ) or second tool carrier unit ( 170 . 250 ) is editable.

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