AT527081A2 - Machine tool - Google Patents

Abstract

The invention relates to a machine tool (1) comprising: - a machine frame (4); - a first work spindle (5); - a second work spindle (6); - a workpiece clamping device (38) with a first workpiece receiving location (59) which is designed to receive at least a first workpiece (2). The first work spindle (5) can be moved along the X-axis (10) by means of a first X-axis adjustment unit (17) and the second work spindle (6) can be moved along the X-axis (10) by means of a second X-axis adjustment unit (18). The first work spindle (5) is displaceable along the Z-axis (9) by means of a first Z-axis adjustment unit (25) and the second work spindle (6) is displaceable along the Z-axis (9) by means of a second Z-axis adjustment unit (26), wherein the first work spindle (5) and the second work spindle (6) are displaceable independently of one another along the Z-axis (9) and the first workpiece receiving location (59) is displaceable along a vertical Y-axis (11) by means of a Y-axis adjustment unit (58).

Description

US2021060666A1 discloses a machine tool with four horizontally aligned work spindles, which are arranged next to each other. The four work spindles

Working spindles are arranged on a common spindle adjustment device.

The US2021060666A1 machine tool has the disadvantage that it has little flexibility when it comes to machining different workpieces.

To increase the flexibility of the machine tool, the number of drives can be increased. However, an increase in the number of drives also increases the complexity of the machine tool. Due to the almost infinite number of possibilities for designing a machine tool, it is very complex to find an optimal configuration of a machine tool that offers sufficient flexibility for specific workpieces and at the same time possible

has the lowest possible complexity.

The aim of the present invention was to overcome the disadvantages of the prior art and to provide a machine tool which has increased flexibility. At the same time, the complexity of the machine tool should be kept to a minimum by increasing the flexibility of the machine tool.

become.

This task is accomplished by a machine tool according to the claims.

solves.

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- a machine frame;

- a first work spindle which is rotatably mounted about a first spindle axis, wherein the first spindle axis is arranged parallel to a horizontal Z-axis;

- a second work spindle which is rotatably mounted about a second spindle axis, wherein the second spindle axis is arranged parallel to the horizontal Z-axis, wherein the first work spindle and the second work spindle are arranged next to one another at a distance from one another in a horizontal X-axis;

- a workpiece clamping device with a first workpiece receiving location which is designed to receive at least one first workpiece,

The first work spindle is displaceable along the X-axis by means of a first X-axis adjustment unit and the second work spindle is displaceable along the X-axis by means of a second X-axis adjustment unit, wherein the first work spindle and the second work spindle are displaceable independently of one another along the X-axis and

wherein the first work spindle is displaceable along the Z-axis by means of a first Z-axis adjustment unit and the second work spindle is displaceable along the Z-axis by means of a second Z-axis adjustment unit, wherein the first work spindle and the second work spindle are displaceable independently of one another along the Z-axis and

wherein the first workpiece receiving location is adjusted by means of a Y-axis adjustment unit

can be moved along a vertical Y-axis.

The machine tool according to the invention has the surprising advantage that, despite increasing the flexibility of the machine tool, the number of necessary drives can be kept as low as possible and thus the com-

complexity of the machine tool can be kept to a minimum.

In particular, it can be provided that the first working spindle and the second working spindle are not displaceable along a vertical Y-axis. This is

not necessary, since the first workpiece receiving location is controlled by a Y-axis

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can be moved along a vertical Y-axis.

Furthermore, it can be expedient if the first work spindle can be moved along the X-axis exclusively by means of the first X-axis adjustment unit and the second work spindle can be moved along the X-axis exclusively by means of a second X-axis adjustment unit. This has the advantage that additional drives can be saved by this measure. In particular, it can be provided that the first work spindle or the second work spindle can be moved over their entire intended working area by means of the respective X-axis adjustment unit. This brings considerable advantages over any designs in which the first work spindle and the second work spindle are moved together by means of an X-axis adjustment unit and additional X-axis adjustment units are arranged between the first work spindle and the second work spindle to compensate

any stretching or other compensation.

Furthermore, it can be provided that the workpiece clamping device comprises a second workpiece receiving location, which is designed to receive a second workpiece, wherein the first workpiece receiving location and the second workpiece receiving location can be moved together by means of a Y-axis adjustment unit along the vertical Y-axis. This has the advantage that a second workpiece can be received on the workpiece clamping device, wherein the first workpiece and the second workpiece can be machined parallel to one another or at the same time. In particular, this measure can increase the efficiency of the machine tool and at the same time reduce the complexity of the machine tool or the complexity of the machine tool.

requirements for the control of the machine tool are kept to a minimum.

In particular, it can be provided that each of the working spindles has its own

assigned to a workpiece receiving location.

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The machine tool's wear and tear can be kept to a minimum.

In addition, it can be provided that the first workpiece receiving location is arranged on a workpiece table which is pivotably mounted about a pivot axis, wherein the pivot axis is aligned parallel to a horizontal X-axis, wherein the workpiece table can be displaced along a vertical Y-axis by means of the Y-axis adjustment unit. This has the advantage that the flexibility of the machine tool can be increased by this measure without excessively increasing the complexity of the machine tool.

to increase.

Furthermore, the additional workpiece holding positions on the workpiece table

be arranged.

Furthermore, it can be provided that at least one swivel motor is formed, by means of which the workpiece table can be swiveled about the first swivel axis.

that can.

Also advantageous is a form according to which it can be provided that the first workpiece receiving location and the second workpiece receiving location on the

The advantage of this is that the workpiece table can be

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without excessively increasing the complexity of the machine tool.

Furthermore, it can be provided that the first workpiece receiving location, the second workpiece receiving location, the third workpiece receiving location and the fourth workpiece receiving location are arranged on the workpiece table. This has the advantage that this measure can increase the flexibility of the machine tool without excessively increasing the complexity of the machine tool. Furthermore, this measure can reduce the processing time.

space should be used as best as possible.

According to a further development, it is possible that a third working spindle is formed, which is mounted so as to be rotatable about a third spindle axis, wherein the third spindle axis is arranged parallel to the horizontal Z-axis and wherein the third working spindle is arranged next to the first working spindle and

that a fourth work spindle is formed, which is mounted so as to be rotatable about a fourth spindle axis, wherein the fourth spindle axis is arranged parallel to the horizontal Z-axis and wherein the fourth work spindle is arranged next to the second work spindle. This has the advantage that this measure can increase the flexibility of the machine tool and at the same time increase the efficiency of the machine tool.

can.

Furthermore, it can be provided that the first work spindle is assigned to the first workpiece receiving location on the workpiece table, that the second work spindle is assigned to the second workpiece receiving location on the workpiece table, that the third work spindle is assigned to the third workpiece receiving location on the workpiece table and that the fourth work spindle is assigned to the fourth workpiece receiving location.

receiving location on the workpiece table.

Furthermore, it can be provided that the first work spindle is coupled to a first spindle drive for rotating the work spindle about the first spindle axis. In particular, it can be provided that the first spindle drive is

Motor spindle is designed.

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Motor spindle is designed.

Furthermore, it can be provided that the third work spindle is coupled to a third spindle drive for rotating the work spindle about the third spindle axis. In particular, it can be provided that the third spindle drive is

Motor spindle is designed.

Furthermore, it can be provided that the fourth work spindle is coupled to a fourth spindle drive for rotating the work spindle about the fourth spindle axis. In particular, it can be provided that the fourth spindle drive is

Motor spindle is designed.

Furthermore, it can be provided that the individual working spindles are operated individually and

can be driven independently of one another.

Furthermore, it can be expedient if the first work spindle and the third work spindle can be moved together along the X-axis by means of the first X-axis adjustment unit and that the second work spindle and the fourth work spindle can be moved together along the X-axis by means of the second X-axis adjustment unit. This has the advantage that, while the machine tool is highly flexible, the complexity of the machine tool can be reduced at the same time.

can be kept low.

In addition, it can be provided that the third work spindle can be displaced along the X-axis relative to the first work spindle by means of a first X-axis compensation unit and that the fourth work spindle can be displaced along the X-axis relative to the second work spindle by means of a second X-axis compensation unit. This has the advantage that the flexibility of the machine tool can be further increased. At the same time, it is not

necessary that the third working spindle and the fourth working spindle are separately

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net are.

In an alternative embodiment, it can be provided that the first work spindle can be moved along the X-axis by means of the first X-axis adjustment unit and the third work spindle can be moved along the X-axis by means of a third X-axis adjustment unit and the second work spindle can be moved along the X-axis by means of the second X-axis adjustment unit and the fourth work spindle can be moved along the X-axis by means of a fourth X-axis adjustment unit, wherein the first work spindle, the second work spindle, the third work spindle and the fourth work spindle can be moved along the X-axis independently of one another. This measure enables the

Flexibility of the machine tool can be further increased.

Furthermore, it can be provided that the third work spindle can be moved along the Z-axis by means of a third Z-axis adjustment unit and the fourth work spindle can be moved along the Z-axis by means of a fourth Z-axis adjustment unit, wherein the first work spindle, the second work spindle, the third work spindle and the fourth work spindle can be moved independently of one another along the Z-axis. This measure can increase the flexibility of the tool

machine tool can be increased again.

Furthermore, it can be provided that the first Z-axis adjustment unit is mounted on the first Z-axis adjustment unit by means of a first Z-axis guide. Furthermore, it can be provided that the second Z-axis adjustment unit is mounted on the second X-axis adjustment unit by means of a second Z-axis guide. Furthermore, it can be provided that the third Z-axis adjustment unit is mounted on the first X-axis adjustment unit by means of a third Z-axis guide. Furthermore, it can be provided that the fourth Z-axis adjustment unit is mounted on the second X-axis adjustment unit by means of a fourth Z-axis guide.

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Axis can be moved.

Furthermore, it can be provided that the individual work spindles can be designed to be pivotable around the Y-axis individually and independently of one another by means of a pivot bearing. This can increase the flexibility of the tool

machine can be further increased.

The individual Z-axis guides can each have guide rails which are arranged on the respective X-axis adjustment unit and can have guide carriages which are each attached to the Z-axis adjustment unit.

are arranged.

In addition, it can be provided that a first X-axis guide rail and a second X-axis guide rail are formed on the machine frame, wherein the first X-axis guide rail and the second X-axis guide rail are accommodated on the machine frame at a distance from one another in the Z-axis, wherein the first X-axis adjustment unit is displaceably mounted on the first X-axis guide rail by means of at least one first guide carriage and is displaceably mounted on the second X-axis guide rail by means of at least one further first guide carriage, and wherein the

second X-axis adjustment unit by means of at least one second guide slide

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accuracy.

Also advantageous is a form according to which it can be provided that the third X-axis adjustment unit is displaceably mounted on the first X-axis guide rail by means of at least one third guide carriage and is displaceably mounted on the second X-axis guide rail by means of at least one further third guide carriage.

and that the fourth X-axis adjustment unit is movably mounted on the first X-axis guide rail by means of at least one fourth guide carriage and is movably mounted on the second X-axis guide rail by means of at least one further fourth guide carriage. This measure can further increase the flexibility of the machine tool. The term further third guide carriages refers to additional guide carriages of the third X-axis adjustment unit. For the sake of simplicity, the number preceding the guide carriages indicates the assignment to the respective X-axis adjustments.

actuating units.

Furthermore, it can be provided that the individual X-axis adjustment units are each coupled to four guide carriages, with two of the guide carriages of the respective X-axis adjustment unit being displaceably mounted on the first X-axis guide rail and two of the guide carriages of the respective X-axis adjustment unit being displaceably mounted on the second X-axis guide rail.

rail are mounted so that they can be moved.

According to a further development, it is possible for a third X-axis guide rail and a fourth X-axis guide rail to be formed on the machine frame, wherein the first X-axis guide rail, the second X-axis guide

guide rail, the third X-axis guide rail and the fourth X-axis guide

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guide rails are each mounted on the machine frame at a distance from each other in the Z-axis

wherein the third X-axis adjustment unit is displaceably mounted on the third X-axis guide rail by means of at least one third guide carriage and is displaceably mounted on the fourth X-axis guide rail by means of at least one further third guide carriage

and that the fourth X-axis adjustment unit is movably mounted on the third X-axis guide rail by means of at least one fourth guide carriage and is movably mounted on the fourth X-axis guide rail by means of at least one further fourth guide carriage. This has the advantage that this measure allows the individual work spindles to be moved closer to one another, thereby increasing the possible machining range of the individual

individual work spindles can be further increased.

Furthermore, it may be expedient for the workpiece table to be rotatably mounted on the machine frame by means of a first pivot bearing and a second pivot bearing, wherein the Y-axis adjustment unit has a first mount which is guided on at least one first Y-axis guide rail and a second mount which is guided on at least one second Y-axis guide rail, wherein the first pivot bearing is arranged on the first mount and the second pivot bearing is mounted on the second mount. This measure enables the necessary mobility of the tool table with regard to its pivotability and with regard to

whose adjustability in the direction of the Y-axis can be easily realized.

Furthermore, it can be provided that the first Y-axis guide rail is arranged on the machine frame. Furthermore, it can be provided that the second Y-axis guide rail is arranged on the machine frame. Furthermore, it can be provided that first receiving guide slides are arranged on the first holder, which interact with the first Y-axis guide rail. Furthermore, it can be provided that second receiving guide slides are arranged on the second holder, which interact with a second Y-axis

guide rail interact.

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In addition, it can be provided that the first holder can be moved along the vertical Y-axis by means of a first Y-drive motor and that the second holder can be moved along the vertical Y-axis by means of a second Y-drive motor. This has the advantage that this measure makes it easy to move the workpiece table. In particular, it can be provided that the first Y-drive motor and the second Y-drive motor are electrically synchronized with one another. In particular, it can be provided that the first Y-drive motor and the second Y-drive motor are controlled synchronously with one another. Synchronization of the first Y-drive motor and the second Y-drive motor can be achieved, for example, by designing a separate path measuring system for the first holder and the second holder to determine the current position of the first holder and the second holder in the Y direction.

is.

Furthermore, it can be provided that the first Y-drive motor is coupled to a first ball screw and that in the first receptacle a first

spindle nut is arranged.

Furthermore, it can be provided that the second Y-drive motor is coupled to a second ball screw and that in the second holder a second

spindle nut is arranged.

Furthermore, it can be useful if the first work spindle and the third work spindle are assigned to the first workpiece receiving location and the second work spindle and the fourth work spindle are assigned to the second workpiece receiving location. This has the advantage that this measure enables efficient machining of two workpieces. Such a configuration is possible in conjunction with four work spindles with two workpiece

recording locations make sense.

Furthermore, it can be provided that the first workpiece receiving location has a first

rotary table by means of which the first workpiece is rotated by a distance normal to the

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The first rotary axis arranged on the swivel axis of the workpiece table is rotatably mounted and the second workpiece receiving location comprises a second rotary table by means of which the second workpiece is rotatably mounted about a second rotary axis arranged perpendicular to the swivel axis of the workpiece table. This has the advantage that this measure increases the flexibility of the workpiece

machine tool can be further improved.

Furthermore, it can be provided that the first axis of rotation and the second axis of rotation

axes are arranged parallel to each other.

Furthermore, it can be provided that two of the first work spindles are arranged one above the other on the first Z-axis adjustment unit and that two of the second work spindles are arranged one above the other on the second Z-axis adjustment unit. This has the advantage that the efficiency of the machine tool can be increased by this measure. In particular, it can be provided that the two first work spindles arranged one above the other in a

positioned at a fixed distance from each other.

Furthermore, it can be provided that the third workpiece receiving station comprises a third rotary table, by means of which the third workpiece is mounted so as to be rotatable about a third rotary axis arranged perpendicular to the swivel axis of the workpiece table, and that the fourth workpiece receiving station comprises a fourth rotary table, by means of which the fourth workpiece is mounted so as to be rotatable about a fourth rotary axis arranged perpendicular to the swivel axis of the workpiece table. This has the advantage that this measure increases the flexibility of the workpiece

machine tool can be further improved.

Furthermore, it can be provided that the machine tool is designed as follows. The machine tool comprises:

a machine frame;

at least a first work spindle which is rotatably mounted about a first spindle axis, wherein the first spindle axis is arranged parallel to a horizontal Z-axis;

a workpiece clamping device which is designed to hold at least a first

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workpiece;

a tool magazine for storing different machining tools, wherein the tool magazine has at least one storage level with several tool receiving locations arranged next to one another.

The tool holders are aligned parallel to the horizontal Z-axis, whereby the machining tools can be accommodated in the tool magazine aligned parallel to the horizontal Z-axis and whereby the individual tool holders are spaced apart from each other in a horizontal X-axis.

are arranged.

The machine tool according to the invention has the advantage that a tool change can be carried out easily by means of these measures.

Furthermore, the machine tool can have a simple structure.

If the machining tools are mounted parallel to the horizontal Z-axis in the tool magazine, this means that a rotation axis of the respective

machining tool is parallel to the horizontal Z-axis.

The horizontal alignment of the tool holders means that tools can be easily placed in them and held in place by gravity. This means that it is not necessary to

that the tool holders have complex holders.

It can also be useful if several tool holders are arranged one behind the other in the tool magazine in the Z-axis. This has the advantage that this measure allows for an increased storage capacity.

capacity of the tool magazine can be achieved.

Furthermore, it can be provided that the tool holders have a longitudinal extension in the Z-axis, whereby the longitudinal extension of at least some of the tool holders arranged one behind the other can be adjusted. This has the advantage that this measure allows the available space in the tool magazine to be used as effectively as possible.

to accommodate as many machining tools as possible. The

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The longitudinal extension of the tool holders defines the maximum tool length of machining tools that can be accommodated. A tool length of the machining tool to be accommodated at the tool holder is therefore preferably smaller than the longitudinal extension of a tool holder in which the machining tool is to be accommodated. In particular, it can be provided that the longitudinal extension of the tool holders is adapted to the tool length of the longest machining tool to be accommodated.

is adjusted.

In particular, it can be provided that different machining tools with different tool lengths are arranged in a row. Furthermore, it can be provided that individual machining tools extend beyond two or more of the tool receiving locations. In the corresponding tool receiving location into which a tool extends,

Of course, no tools are allowed to be picked up.

In addition, it can be provided that the tool magazine comprises a first receiving comb and a second receiving comb, the first receiving comb having first receiving recesses and the second receiving comb having second receiving recesses, the first receiving comb and the second receiving comb being arranged at a distance from one another in the extension of the horizontal Z-axis, one of the first receiving recesses being used to deposit a first of the processing tools and one of the second receiving recesses being used to deposit another of the processing tools. Such an embodiment has the advantage that the processing tool can be easily deposited in the receiving combs and otherwise no positive connection is required to stabilize the processing tools when depositing them. The receiving combs can engage in the processing tools in such a positive manner that the processing tools can be held stably in the receiving combs. In particular, it can be provided that the processing tools each have a recess that is aligned with the receiving comb.

have a responding groove.

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In particular, it can be provided that the first receiving comb and the second receiving comb are arranged at a distance from each other in such a way that a first of the processing tools can be received in the first receiving comb and the second receiving comb is arranged opposite the first processing tool.

stuff is not in the way.

Another advantageous embodiment is one in which the first receiving comb and/or the second receiving comb are designed to be movable along the horizontal Z-axis relative to the machine frame. This measure allows the longitudinal extension of the tool receiving locations to be adjusted so that the longitudinal extension of the tool receiving locations can be adapted to the length of the tools to be received in such a way that the longitudinal extension of the tool receiving locations is not greater than the length of the longest tool to be received. In particular, it can be provided that the longitudinal extension of the tool receiving locations is determined by the distance between the first receiving comb and the second receiving comb.

which is defined.

In particular, it can be provided that the individual receiving combs are individually and independently of each other along the horizontal Z-axis relative to the machine.

rail frame are designed to be movable.

According to a further development, it is possible for the first receiving comb to be arranged on a comb holder, wherein the comb holder is arranged above the first work spindle and is designed to be displaceable along the horizontal Z-axis, in particular that the comb holder simultaneously forms part of the housing of a machining area of the machine tool. This has the advantage that the first receiving comb can be moved by means of the comb holder. If the comb holder forms part of the housing of the machining area of the processing machine, it can have the simplest and most efficient structure possible. In particular,

This ensures that when the comb holder is moved along the high

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horizontal Z-axis the housing of the machining area of the machine tool is opened and thus the machine tool for the tool change

becomes accessible.

Furthermore, it can be provided that the longitudinal extension of at least two tool holders arranged next to each other with respect to the horizontal Z-axis can be adjusted independently of each other. This has the advantage that the same longitudinal extension does not have to be set across the entire width of the tool magazine. This means that the available

Space in the tool magazine can be better utilized.

Furthermore, it can be expedient if the tool magazine comprises a third receiving comb and a fourth receiving comb, wherein the third receiving comb has third receiving recesses and the fourth receiving comb has fourth receiving recesses, wherein the third receiving comb is arranged at a distance in the horizontal X-axis next to the first receiving comb and the fourth receiving comb is arranged at a distance in the horizontal X-axis next to the second receiving comb, wherein the first receiving comb, the second receiving comb, the third receiving comb and the fourth receiving comb are designed to be displaceable independently of one another along the horizontal Z-axis relative to the machine frame. This measure can increase the flexibility

of the machine tool can be further increased.

Furthermore, it can be provided that at least two of the receiving troughs are arranged next to each other for each work spindle. This has the advantage that for each work spindle a machining tool can be placed in one of the receiving troughs and another machining tool can be removed from one of the receiving troughs.

memory troughs can be recorded.

Furthermore, it can be provided that a tool changing device is designed to change the processing tools. Furthermore, it can be provided

that the tool changing device comprises a first gripping device.

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The first gripping device can have a first gripping unit and a second gripping unit. The first gripping unit and the second gripping unit can be arranged at a distance from each other with respect to the X-axis at a first gripping unit distance.

be nice.

In particular, it can be provided that the first gripping unit distance is equal to the distance between the individual receiving troughs or a multiple of the distance

of the individual receiving troughs.

Furthermore, it can be provided that the first gripping device is assigned to the first work spindle. In particular, it can be provided that by means of the first gripping unit a first of the machining tools, which is clamped in the first work spindle, can be removed and then a second of the machining tools, which is held in the second gripping unit, can be inserted into the

first working spindle is used.

In particular, it can be provided that the first gripping unit and the second gripping unit are aligned such that the processing tools are parallel to the

Z-axis aligned in the respective gripping unit.

Furthermore, it can be provided that a second gripping device is accommodated on the gripping device carrier, which has a third gripping unit and a fourth gripping unit. The third gripping unit and the fourth gripping unit can be spaced apart from one another with respect to the X-axis at a second gripping unit distance.

be arranged in a stable manner.

The function or dimensions of the second gripping device can be designed mutatis mutandis to the first gripping device. Furthermore, it can be provided

that the second gripping device is assigned to the second work spindle.

Furthermore, it can be provided that the first gripping device and the second

Gripping device are arranged at a gripping device distance from each other. Furthermore, it can be provided that a third gripping device

device and a fourth gripping device are arranged.

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The third gripping device can be assigned to the third work spindle. The fourth gripping device can be assigned to the fourth work spindle. The third gripping device or the fourth gripping device can be designed mutatis mutandis to the first gripping device and also each have two gripping units.

point out.

Furthermore, it can be provided that the tool changing device has a gripping device head. The gripping device carrier can be arranged on the gripping device head so that it can move along the X-axis. In particular, it can be provided that the gripping device carrier is coupled to a gripping device carrier rail which is slidably accommodated in a gripping device head slide. The gripping device head slide can be arranged on the gripping device head. Furthermore, it can be provided that a gripping device carrier adjustment motor is formed, by means of which the gripping device

direction carrier is movable relative to the gripping device head.

Furthermore, it can be provided that the gripping device head is arranged so as to be displaceable in the Y-axis on a gripping device height adjustment mount. Between the gripping device head and the gripping device height adjustment mount

A guidance system can also be designed for this purpose.

Furthermore, it can be provided that the gripping device height adjustment holder is designed to be telescopic. This has the advantage of better accessibility.

ity of the deeper spindles.

Furthermore, it can be provided that a gripping device main carrier is formed which extends along the Z-axis. In particular, it can be provided that the gripping device height adjustment mount is accommodated on the gripping device main carrier so as to be displaceable in the Z-axis. Between the gripping device main carrier and the gripping device height adjustment mount,

A guidance system must also be developed.

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Furthermore, it can be provided that the gripping device main carrier is mounted on the machine frame by means of a first holder or by means of a second holder.

is taken.

In addition, it can be provided that a first gripping device is designed for exchanging the machining tool accommodated in the first work spindle, wherein the gripping device has at least one first gripping unit

and a second gripping unit, which are arranged at a gripping unit distance from each other, in particular that the first gripping device exclusively along the X-axis and along a vertical Y-axis, but not

along the Z-axis. This has the advantage that the gripping device can have a simple structure and, in addition, the tool

tool change can be done easily.

Especially in conjunction with a receiving comb that can be moved along the Z-axis and is arranged above the work spindles, it can be efficient if the first gripping device is moved exclusively along the X-axis and

can be moved along a vertical Y-axis, but not along the Z-axis.

Furthermore, it can be expedient if a second work spindle is formed, which is arranged next to the first work spindle with respect to the horizontal X-axis, in particular that the second work spindle is assigned to a second tool receiving location. The tool magazine according to the invention is particularly advantageous in a machine tool designed in this way with two work spindles arranged next to one another, since due to the work spindles arranged next to one another, the machine tool has a large width anyway.

and thus the space available is used in an optimized manner.

Furthermore, it can be provided that the first receiving comb has first lower receiving troughs opposite the first receiving troughs and the second receiving comb has second lower receiving troughs opposite the second receiving troughs, wherein the first receiving comb is designed to be pivotable by 180° with respect to a horizontal axis, so that

either the first receiving troughs or the first lower receiving troughs

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can be arranged on top, wherein the first receiving comb and/or the second receiving comb has a locking device for securing the processing tools, so that the processing tools located underneath are secured against falling out. This has the advantage that the storage capacity of the tool magazine can be further increased by this measure. In particular, it can be provided that the locking device is designed in the form of a positive and frictional clamping device, which is used to hold the processing tools in the receiving

memory troughs.

Furthermore, it can also be provided that the second receiving comb is designed to be pivotable by 180° with respect to a horizontal axis, so that either the second receiving troughs or the second lower receiving troughs

can be arranged on top.

In particular, it can be provided that the gripping device for actuating the

locking device.

The locking device prevents the processing tools underneath from falling out. The processing tools can also be locked when manipulating the receiving comb with the hand

ling system can be advantageous.

In addition, it can be provided that the first receiving comb and the second receiving comb, together with the processing tools received thereon, can be exchanged by means of a handling system. This has the advantage that the receiving combs can be pre-loaded with processing tools and can be inserted into the machine tool. This means that several processing tools can be fed into or removed from the machine tool at the same time. Such a handling system can be an articulated arm robot, for example. Furthermore, it is also conceivable that the tool changing device itself can be used to exchange the receiving comb.

is used.

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Furthermore, it can be provided that more tools of the same type are stored next to each other in the tool storage, in particular in tool storage locations arranged next to each other, than the number of work spindles available. This measure can ensure that at least one tool of the same type can always be kept in reserve. This means that if a single tool breaks, this single tool can be replaced.

be exchanged.

Furthermore, a method for operating a machine tool can be provided. The machine tool can comprise the following components: a machine frame, a first work spindle which is mounted so as to be rotatable about a first spindle axis, the first spindle axis being arranged parallel to a horizontal Z-axis, and a workpiece clamping device which is designed to hold at least one first workpiece and a tool magazine for storing different machining tools, the tool magazine having at least one storage level with several tool receiving locations arranged next to one another, the tool receiving locations being aligned parallel to the horizontal Z-axis, the tool receiving locations being arranged next to one another with respect to a horizontal X-axis. The method comprises the following method steps:

- machining the first workpiece by means of a machining tool mounted in the first work spindle;

- Changing the machining tool, whereby the machining tool previously held in the first work spindle is parallel to the horizontal Z-axis

is placed in one of the tool holders in the tool magazine.

The process has the advantage that the machining tools do not have to be swiveled during the tool change. This allows

the tool change can be done faster and more efficiently.

According to a further development, it is possible that in order to change the processing tool by means of a first gripping unit of a gripping device, a tool stored in a first receiving comb of a comb holder of the tool magazine

The machining tool is gripped and raised along the Y-axis,

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wherein the comb holder is arranged above the first working spindle, and wherein the comb holder is subsequently moved along the Z-axis so that the gripping device can be moved along the Y-axis into the machining area without the gripping device having to be moved along the Z-axis,

whereby the machining tool located in the first work spindle is picked up by means of a second gripping unit of the gripping device and the machining tool located in the first gripping unit is inserted into the first work spindle. This has the advantage that this measure enables a

easy changing of the machining tool is possible.

To remove a machining tool from the first work spindle or to insert a machining tool into the first work spindle, the ability of the first work spindle to move along the Z-axis can be used.

become.

Furthermore, it can be useful if several tool holding positions are arranged one behind the other in the tool magazine, offset in the Z-axis, the tool holding positions having a longitudinal extension in the Z-axis, the longitudinal extension of at least some of the tool holding positions arranged one behind the other being adjustable, the longitudinal extension of the tool holding positions in the Z-axis being adapted to a tool length of the processing tools to be deposited, a different longitudinal extension being set in different tool holding positions arranged one behind the other. This has the advantage that this measure enables the space in the tool magazine to be used as best as possible. In addition, this measure allows the travel paths of the gripping device to be kept as short as possible, so that the efficiency of the tool

machine can be as large as possible.

In addition, it can be provided that in a computer-implemented process step, a storage position of the processing

tools and the necessary longitudinal extension of the individual tool

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locations in the Z-axis are calculated, whereby the calculation serves to minimize the tool change time and the following parameters are taken into account in the calculation:

- a travel speed of a gripping device;

- the distance from the respective tool holder to the first working spindle;

- a frequency of use of the machining tools to be stored. This has the advantage that the efficiency of the machine tool can be improved by this measure. The calculation can take into account that frequently used machining tools are arranged as close as possible to the respective work spindle. Furthermore, machining tools with the shortest possible tool length can be arranged as close as possible to the respective work spindle, whereby the longitudinal extension of the tool holders can be adapted to the tool length so that the longitudinal extension of the tool holders is as short as possible and all of the machining tools arranged one behind the other are as close as possible in the first row.

cover of the Z-axis to the first work spindle.

Furthermore, it can be provided that it is taken into account that different machining tools with similar tool lengths are placed next to each other at tool holding locations with the same longitudinal extension, so that the

The occupancy density of the tool magazine can be kept as high as possible.

Furthermore, it can be useful if the gripping device is used to adjust the longitudinal extension of the tool holder locations in the Z-axis. This has the advantage that this measure can keep the complexity of the machine tool as low as possible, since the number of drives or the number of moving components of the machine tool can be kept as low as possible.

can be kept low.

Furthermore, it can be provided that the first longitudinal extension of the first tool holder is adapted to the tool length of the longest of the processing tools to be accommodated in the first tool holder. The

second longitudinal extension of the second tool holder can of course

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also to the tool length of the longest of the second tool holder

space of the machining tool to be accommodated

Furthermore, it can be provided that the machining tools held in the tool magazine are repositioned by means of the gripping device when the gripping device is not currently carrying out a tool change. This has the advantage that this measure reduces the tool change time as much as possible.

can be kept short.

In addition, it can be provided that the longitudinal extension of individual tool holders is adjusted during finishing. This measure can ensure the best possible use of the space available in the tool magazine.

available space.

Furthermore, the procedure may include the following steps:

- Removing a last used machining tool from the work spindle by means of the first gripping unit;

- Inserting a machining tool held in the second gripping unit into the work spindle;

- Moving the gripping device to the tool magazine to pick up a new machining tool from the tool magazine into the gripping device and simultaneously depositing the last used machining tool from the gripping device into the tool magazine; and at the same time

- Machining a workpiece using the tool mounted in the work spindle.

an editing tool.

The advantage here is that the time required to retrieve a machining tool from the tool storage can be kept as short as possible. This is particularly advantageous when the machining processes only take a very short time and a new machining operation is to be carried out as quickly as possible.

processing tool is required.

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Furthermore, it can be provided that a second work spindle is arranged next to the first work spindle, wherein the work spindles are arranged parallel to one another and each serve to hold a processing tool and that the tool changing device has a second gripping device, wherein the two gripping devices are moved synchronously to one another and simultaneously operate the two work spindles. Thus, the two work spindles can

dels are operated synchronously with each other.

Furthermore, it can be useful if, in order to accept a new machining tool from the tool magazine into the gripping device and at the same time to deposit the last used machining tool from the gripping device into the tool magazine, the machining tools are arranged in the storage level in such a way that the new machining tool is arranged at a first tool receiving location and a second tool receiving location is free at the gripping unit distance from the first tool receiving location, which is used to deposit the last used machining tool from the gripping device into the tool magazine. The advantage here is that this measure allows the gripping device with the two gripping units and the machining tool held in one gripping unit to be moved to the respective storage unit in order to be able to deposit the machining tool. The machining tool is guided into the free tool receiving location. At the same time, the newly provided machining tool is gripped by means of the still free gripping unit and can thus be guided to the work spindle of the machining system. The time required to put down the old machining tool and pick up the new machining tool can be kept as short as possible because the gripping device does not have to move to two different positions in the tool magazine, but rather the old machining tool can be put down and the new machining tool can be picked up at the same time in one operation. The machining tools are positioned in the tool magazine in such a way that the described machining steps are possible. In particular, it can be provided that at least one of the tool holders per holder

comb is free to enable recurring sorting.

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In addition, it can be provided that during selected machining processes, in particular during machining processes with a long machining time, the machining tools stored in the tool magazine are re-sorted using the gripping device while the workpiece is being machined. The advantage here is that the machining tools can be re-sorted according to the machining steps planned in the future in order to find a free tool holder next to a machining tool to be changed and thus to facilitate the tool changing process according to the invention.

to enable access.

In addition, it can be useful if machining tools which follow in the machining sequence those machining tools which are used to carry out shorter machining steps are stored closer to the work spindle than machining tools which follow in the machining sequence those machining tools which are used to carry out longer machining steps. This measure can ensure that a quick changeover process is guaranteed during machining using a machining tool with a short machining time, since the gripping device only has to cover short distances. This means that a new machining step can be carried out even during this short period of time.

tool must be retrieved from the tool storage.

According to a further development, it is possible for machining tools that are used more frequently to be stored closer to the work spindle than machining tools that are used less often. This measure can ensure that machining tools that are used more frequently can be changed quickly, since the gripping device

only has to cover short distances.

Furthermore, it may be useful if the last used machining tool is fed to a measuring device after removal from the work spindle by means of the gripping device, in which wear of the machining tool

The advantage here is that this measure reduces the

27172 A2024/88625-AT

Wear and tear of the machining tool or a possible breakage of the machining tool can be detected. This means that a replacement of the machining tool can be requested before the machining tool is stored in the tool magazine or the machining tool can be

placed in an appropriate location where it can be replaced.

A possible procedure for changing the machining tools can be as follows:

measures.

At the start of the tool change process, a new machining tool can be located in the first gripping unit of each individual gripping device, which is to be used in the next machining step. Furthermore, the second gripping units of each individual gripping device can be free to accommodate a machining tool. The gripping devices are moved to the work spindles in such a way that the machining tool currently held in the work spindle can be

tool can be grasped and removed from the work spindle.

To remove the machining tools from the work spindles, the individual gripping devices can be moved along the Z-axis. Alternatively or additionally, the individual work spindles can also be moved in the opposite direction along the Z-axis. If the individual work spindles are also moved along the Z-axis, the tool change time can be significantly reduced by the superimposed movement.

the.

The gripping devices arranged on the gripping device carrier are then moved along the X-axis relative to the gripping device head using the gripping device carrier adjustment motor, so that the new machining tool, which is accommodated in the first gripping units, can be inserted into the work spindle. Alternatively or additionally, the individual work spindles can also be moved in the opposite direction along the X-axis.

If the individual work spindles are also moved along the X-axis

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are moved, the superimposed movement can change the tool

time can be significantly shortened.

When the machining tool is inserted into the work spindle, the machining tool held in the second gripping unit can be moved by means of the tool

tool changing device to the tool magazine.

Optionally, the wear of the machining can be measured beforehand using a measuring device.

processing tool can be determined.

When the gripping devices are now moved to the tool magazine, the first gripping unit is free and the last used machining tool is held in the second gripping unit. The gripping devices are moved to a storage level in such a way that the last used machining tool can be deposited in a free tool holder location and at the same time a new machining tool intended for the next machining process can be held in a tool holder location which is spaced apart by the gripping units. The second gripping unit is opened in order to be able to deposit the machining tool held in it and the first gripping unit is closed in order to be able to hold the new machining tool. The gripping device can then be moved back to the work spindles in order to be able to insert the new machining tool. The depositing of the machining tools and the adjustment of the longitudinal extent of the individual tool holder locations can be carried out using

the calculation of the digital computer.

The insertion of the new machining tool is analogous to the process steps already described, whereby now not the second gripping unit but the first gripping unit is used to pick up the last tool inserted in the work spindle.

used processing tool.

It is therefore intended that every second round of the procedure the first

Gripping unit for holding the machining workpiece clamped in the work spindle

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tool and in every second machining operation the second gripping unit is used to hold the machining tool clamped in the work spindle

serves.

In addition, the gripping devices can be used to hold the machining tools in the workpiece during longer machining processes.

Re-sort the tool magazine.

For a better understanding of the invention, it is explained in the following

Figures are explained in more detail. They show in a highly simplified, schematic representation:

Fig. 1 shows a first embodiment of a machine tool in a first

perspective view;

Fig. 2 the first embodiment of the machine tool in a front view; Fig. 3 the first embodiment of the machine tool in a second

perspective view;

Fig. 4 a detail of the four working spindles of the first embodiment of the

Machine tool in a first perspective view;

Fig. 5 a detail of the four working spindles of the first embodiment of the

Machine tool in a first perspective view;

Fig. 6 shows a detail of a tool changing device and a tool magazine of the first embodiment of the machine tool in a

a first perspective view;

Fig. 7 shows a detail of the tool changing device of the first embodiment.

game of the machine tool in a first perspective view;

Fig. 8 shows a second embodiment of a machine tool in a first

perspective view;

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Fig. 9 a detail of the four working spindles of a third embodiment

the machine tool in a first perspective view;

Fig. 10 a detail of the four X-axis adjustment units of a fourth embodiment

example of the machine tool in a plan view;

Fig. 11 a detail of the four X-axis adjustment units of a fifth embodiment

example of the machine tool in a plan view;

Fig. 12 shows a detail of another embodiment of a receiving chamber.

mes in a first perspective view;

Fig. 13 is a schematic side view of a sixth embodiment

a machine tool;

Fig. 14 a third embodiment of a machine tool in a first

perspective view.

To begin with, it should be noted that in the variously described embodiments, identical parts are provided with identical reference symbols or identical component designations, whereby the disclosures contained in the entire description can be transferred analogously to identical parts with identical reference symbols or identical component designations. The position information chosen in the description, such as top, bottom, side, etc., also refers to the figure directly described and shown, and these position

In the event of a change in location, the information provided must be transferred accordingly to the new location.

Figures 1 to 7 show schematic representations of a first embodiment of a machine tool 1 for machining workpieces 2, 3 in different views. The machine tool 1 is described using a summary of Figures 1 to 7. It is pointed out that for the sake of clarity, not all reference symbols are used in each of the figures.

of the described components are registered.

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In particular, it can be provided that the machine tool 1 is used for machining a first workpiece 2 and a second workpiece

ckes 3 serves.

The machine tool 1 has a machine frame 4, which serves as a basis for

the components attached to it.

The machine frame 4 is only shown schematically in Fig. 1 for the sake of clarity. However, it should be noted that the machine frame 4 can be anchored at the installation site. In addition, the machine frame 4 can of course be used to accommodate all components of the machine tool 1. The machine

The rail frame 4 itself can also comprise several components.

Furthermore, it can be provided that the machine tool 1 comprises a first working spindle 5 and a second working spindle 6. The first working spindle 5 can be mounted so as to be rotatable about a first spindle axis 7. The second working spindle

del 6 can be rotatably mounted about a second spindle axis 8.

Furthermore, it can be provided that the first work spindle 5 and the second work spindle 6 are individually and independently of one another in a Z-axis 9 and in an X-axis 10 relative to the machine frame 4 are adjustable. Furthermore, it can be provided that the first work spindle 5 and the second work spindle 6 are positioned at a fixed height relative to the machine frame 4 in a Y-axis 11 arranged at a right angle to the Z-axis 9 and X-axis 10.

are located.

In particular, it can be provided that the Z-axis 9 is arranged horizontally. The Z-axis 9 can be arranged parallel to the first spindle axis 7 and to the second spindle axis 8. Furthermore, it can be provided that the X-axis 10 is also arranged horizontally. The X-axis 10 can be arranged at a right angle to the Z-axis 9. Furthermore, it can be provided that the Y-axis 11

is aligned vertically.

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As can be seen from Fig. 1, it can be provided that a third working spindle 12 is formed, which is arranged to be rotatable about a third spindle axis 13. Furthermore, it can be provided that a fourth working spindle 14 is

which is arranged to rotate about a fourth spindle axis 15.

Furthermore, it can be provided that the individual working spindles 5, 6, 12, 14 each serve to accommodate a machining tool 16 by means of which the

Workpieces 2, 3 can be processed.

Furthermore, it can be provided that the first work spindle 5 is designed to be displaceable along the X-axis 10 by means of a first X-axis adjustment unit 17. Furthermore, it can be provided that the second work spindle 6 is designed to be displaceable along the X-axis 10 by means of a second X-axis adjustment unit 18. In particular, it can be provided that the first X-axis adjustment unit 17 and the second X-axis adjustment unit 18 are independently adjustable along

the X-axis 10 are movable.

As can be seen particularly well from Fig. 4, it can be provided that a first X-axis guide rail 19 and a second X-axis guide rail 20

which are arranged on the machine frame 4.

Furthermore, it can be provided that several first guide carriages 21 are arranged on the first X-axis adjustment unit 17. Individual ones of the first guide carriages 21 can be guided on the first X-axis guide rail 19 and individual ones of the first guide carriages 21 can be guided on the second X-

Axis guide rail 20.

In particular, in Fig. 5, it can be provided that two of the first guide carriages 21 are formed, which interact with the first X-axis guide rail 19 and two of the first guide carriages 21 are formed,

which interact with the second X-axis guide rail 20.

Furthermore, it can be provided that on the second X-axis adjustment unit 18

several second guide carriages 22 are arranged. Individual ones of the second guide

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guide carriages 22 can be guided on the first X-axis guide rail 19 and individual ones of the second guide carriages 22 can be guided on the second

X-axis guide rail 20.

In particular, it can be provided that two of the second guide carriages 22 are formed which interact with the first X-axis guide rail 19 and two of the second guide carriages 22 are formed which

interact with the second X-axis guide rail 20.

As can be seen from the individual figures, it can be provided that in this first embodiment of the machine tool 1 the first work spindle 5 and the third work spindle 12 are arranged together on the first X-axis adjustment unit 17 and can thus be adjusted together along the X-axis 10.

are.

Furthermore, it can be provided that the second working spindle 6 and the fourth working spindle 14 are arranged together on the second X-axis adjustment unit 18.

net and can therefore be moved together along the X-axis 10.

As can be seen particularly well from Fig. 5, it can be provided that the first X-axis adjustment unit 17 is coupled to a first X-axis drive unit 23. It can also be provided that the second X-axis adjustment unit 18 is coupled to a second X-axis drive unit 24. The first X-axis drive unit 23 and the second X-axis drive unit 24 can serve to move or position the first X-axis adjustment unit 17 or the second X-axis adjustment unit 18 along the X-axis 10. The first X-axis adjustment unit 17 and the second X-axis adjustment unit 18 can thus be

and moved independently along the X-axis 10.

As can be seen particularly well from Fig. 4, it can be provided that the first work spindle 5 is accommodated on the first X-axis adjustment unit 17 by means of a first Z-axis adjustment unit 25 in the Z-axis 9 so as to be displaceable.

It can be provided that the second working spindle 6 is driven by means of a second Z-

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Axis adjustment unit 26 movable in the direction of the Z-axis 9 on the second

X-axis adjustment unit 18 is included.

Furthermore, it can be provided that the third work spindle 12 is movably mounted on the first X-axis adjustment unit 17 by means of a third Z-axis adjustment unit 27. Furthermore, it can be provided that the fourth spindle 14 is displaceable along the Z-axis 9 by means of a fourth Z-axis adjustment unit 28.

slidably mounted on the second X-axis adjustment unit 18.

Furthermore, it can be provided that the first Z-axis adjustment unit 25 is mounted on the first Z-axis adjustment unit 17 by means of a first Z-axis guide 29. Furthermore, it can be provided that the second Z-axis adjustment unit 26 is mounted on the second X-axis adjustment unit 18 by means of a second Z-axis guide 30. Furthermore, it can be provided that the third Z-axis adjustment unit 27 is mounted on the first X-axis adjustment unit 17 by means of a third Z-axis guide 31. Furthermore, it can be provided that the fourth Z-axis adjustment unit 28 is mounted on the

second X-axis adjustment unit 18.

The individual Z-axis guides 29, 30, 31, 32 can each have guide rails which are arranged on the first X-axis adjustment unit 17 or on the second X-axis adjustment unit 18 and can have guide carriages which are each attached to the Z-axis adjustment unit 25, 26, 27, 28.

are arranged.

Furthermore, it can be provided that the first Z-axis adjustment unit 25 is adjustable relative to the first X-axis adjustment unit 17 by means of a first Z-axis drive unit 33. Furthermore, it can be provided that the second Z-axis adjustment unit 26 is adjustable relative to the second X-axis adjustment unit 18 by means of a second Z-axis drive unit 34. Furthermore, it can be provided that the third Z-axis adjustment unit 27 is adjustable relative to the first X-axis adjustment unit 17 by means of a third Z-axis drive unit 35. Furthermore, it can be provided that the fourth Z-axis adjustment unit 28 is adjustable relative to the first X-axis adjustment unit 17 by means of a

fourth Z-axis drive unit 36 relative to the second X-axis adjustment unit

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18 is adjustable. In particular, it can be provided that the individual work spindles 5, 6, 12, 14 can be moved individually and independently of one another along the Z-axis 9 by means of the individual Z-axis drive units 33, 34, 35, 36.

are.

Furthermore, it can be provided that the individual work spindles 5, 6, 12, 14 can be designed to be pivotable individually and independently of one another about the Y-axis 11 by means of a pivot bearing 37. This allows the flexibility

The flexibility of machine tool 1 can be further increased.

As can be seen from the individual Fig. 1 to 5, it can be provided that in the first embodiment of the machine tool 1 the individual work spindles 5, 6, 12, 14 are not displaceable along the Y-axis 11. Instead, the individual work spindles 5, 6, 12, 14 can all be at a common height

be arranged.

As can be seen particularly well from Fig. 1, it can further be provided that a workpiece clamping device 38 is designed, which is designed to receive the first

workpiece 2 and the second workpiece 3.

The workpiece clamping device 38 can have a workpiece table 39. The workpiece table 39 can have a first workpiece receiving location 59 and a second

ten workpiece holding position 60.

Furthermore, it can be provided that a Y-axis adjustment unit 58 is formed, by means of which the first workpiece table 39 can be moved along the Y-axis 11.

can be pushed.

The workpiece table 39 can be pivotally mounted about a first pivot axis 40 relative to the machine frame 4. In particular, it can be provided that

the first pivot axis 40 is arranged parallel to the X-axis 10.

Furthermore, it can be provided that a first pivot bearing 41 and a

second pivot bearing 42 are formed, by means of which the workpiece table

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39 pivotable about the first pivot axis 40 on the machine frame 4.

men is.

Furthermore, it can be provided that the first pivot bearing 41 is coupled to a first receptacle 43, wherein the first receptacle 43 can be slidably received on the machine frame 4 along the Y-axis 11. Furthermore, it can be provided that the second pivot bearing 42 is coupled to a second receptacle 44, wherein the second receptacle 44 can be slidably received on the machine frame 4 along the Y-axis 11. In particular, it can be provided that first receptacle guide slides 45 are arranged on the first receptacle 43, which slides are connected to a first Y-axis guide rail

46 work together.

The first Y-axis guide rail 46 can be arranged on the machine frame 4. Furthermore, it can be provided that second holder guide carriages 47 are arranged on the second holder 44, which interact with a second Y-axis guide rail 48. The second Y-axis guide rail 48 can be arranged on the machine frame 4. Furthermore, it can be provided that a first Y-drive motor 49 is formed, by means of which the first holder 43 can be displaced along the Y-axis 11. Furthermore, it can be provided that a second Y-drive motor 50 is formed, by means of which the second holder 44 can be displaced along the Y-axis 11. In particular, it can be provided that the first Y-drive motor 49 and the second Y-drive motor 50 are operated synchronously with one another, so that the first swivel

axis 40 is always parallel to the X-axis 10.

Furthermore, it can be provided that at least one swivel motor 51 is formed, by means of which the workpiece table 39 can be swiveled about the first swivel axis 40. The swivel motor 51 can be arranged on one of the two swivel bearings 41, 42. Furthermore, it can also be provided that two of the swivel motors 51 are formed on one of the swivel bearings 41, 42.

are.

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Furthermore, it can also be provided that on each of the pivot bearings 41, 42

one swivel motor 51 or two of the swivel motors 51 are arranged.

As shown schematically in Fig. 3, it can be provided that a handling system 99 is formed, by means of which the individual receiving combs 67, 68, 74, 75 together with the processing tools 16 received therein can be inserted into the machine tool 1 or removed from it. Thus, the tool storage can be expanded by this measure. The handling system 99 can, for example, comprise a driverless transport vehicle, by means of which the receiving combs 67, 68, 74, 75 can be transported over long distances within a production hall. In an alternative, it is of course also conceivable that the processing tools 16 are manipulated directly by means of the handling system 99 or are received in it.

the.

Loading the machine tool 1 with receiving combs 67, 68, 74, 75 or machining tools 16 can be done from the rear, as shown in Fig. 3. Furthermore, it is also conceivable that the machine tool 1

is loaded from the side or from above using the handling system 99.

Furthermore, it can be provided that the first workpiece receiving location 59 on the workpiece table 39 comprises a first rotary table 52, which can be mounted on the workpiece table 39 so as to be rotatable about a first axis of rotation 53. Furthermore, it can be provided that the second workpiece receiving location 60 on the workpiece table 39 comprises a second rotary table 54, which can be arranged on the workpiece table 39 so as to be rotatable about a second axis of rotation 55. The first rotary table 52 can serve to receive the first workpiece 2. The second rotary table 54 can serve to receive the second workpiece 3. In particular, it can be provided that the first rotary table 52 and the second rotary table 54 are arranged individually and independently of one another on the workpiece table 39 so as to be rotatable about the respective axis of rotation 53, 54. In particular, it can be provided that the first rotary table 52 is driven by a first rotary motor 56. Furthermore, it can be provided that the second rotary table 54 is driven by a second

Rotating motor 57 is driven.

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As can be seen from Fig. 1, it can be provided that the first working spindle 5 and the third working spindle 12 are assigned to the first rotary table 52 and that the second working spindle 6 and the fourth working spindle 14 are assigned to the second

Turntable 54 is assigned.

In a further embodiment, not shown, it can also be provided that a third rotary table and a fourth rotary table are formed on the workpiece table 39 in addition to the first rotary table 52 and the second rotary table 54. Each of the rotary tables can be used to hold a workpiece. Thus, each of the work spindles 5, 6, 12, 14 can be assigned to its own rotary table.

be.

As can be seen from Fig. 1, a tool changing device 61 can also be provided for changing the machining tools 16. Furthermore, a tool magazine 62 can be provided for receiving and temporarily storing the machining tools.

tools 16 should be provided.

The tool magazine 62 serves in particular for providing and storing different machining tools 16 for different

processing operations.

As can be seen particularly well from Fig. 6, several storage levels 63, each with several tool receiving locations 64, 65, can be formed in the tool magazine 62. In particular, it can be provided that a storage level 63 is characterized in that all tool receiving locations 64, 65 of a

Storage level 63 at a common height with respect to the Y-axis 11.

In the embodiment according to Fig. 1, for the sake of simplicity, only one storage

level 63 shown.

As can be seen from Fig. 6, it can be provided that the tool holders 64, 65 are aligned parallel to the horizontal Z-axis 9, whereby

the machining tools 16 are aligned parallel to the horizontal Z-axis 9 in the

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tool magazine 62. Furthermore, the individual tool holder locations 64, 65 can be spaced apart from each other in the horizontal X-axis 10.

be arranged next to each other.

As can be seen particularly well in Fig. 6, it can be provided that several tool receiving locations 64, 65 are arranged one behind the other in the tool magazine 62 in the Z-axis 9. In particular, it can be provided that the first tool receiving location 64 and the second tool receiving location 65 are arranged at a distance from one another. Furthermore, it can be provided that several of the first tool receiving locations 64 of the horizontal X-axis 10 are arranged next to one another at a distance from one another. Furthermore, it can be provided that several of the second tool receiving locations 65 in the horizontal

X-axis 10 are arranged next to each other at a distance from each other.

As can be seen particularly well from Fig. 6, the tool magazine 62 can have a first receiving comb 67 and a second receiving comb

comb 68 includes.

The first receiving comb 67 and the second receiving comb 68 can each be designed to receive different processing tools 16. In particular, it can be provided that the first receiving comb 67 has a transverse extension in the X-axis 10. In this case, several first receiving troughs 69 can be arranged in the first receiving comb 67 at a distance 66 along the X-axis 10. Each of the first receiving troughs 69 can serve to receive one of the processing tools 16. Furthermore, it can be provided that several second receiving troughs 70 are provided in the second receiving comb 68, wherein the individual second receiving troughs 70 are also in a

stand 66 in along the X-axis 10 to each other.

Furthermore, it can be provided that the first receiving comb 67 and the second receiving comb 68 are displaceable along the Z-axis 9 on the tool machine.

machine 1. This measure allows a first longitudinal

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extension 71 of the first tool holder 64 and a second longitudinal extension 72 of the second tool holder 65 are varied or adjusted

become.

In particular, this measure makes it possible to adapt the first longitudinal extension 71 of the first tool receiving location 64 to a tool length 73 of the machining tools 16 to be accommodated. Furthermore, this measure makes it possible to adapt the second longitudinal extension 72 of the second tool receiving location 65 to the tool length 73 of the machining tools 16 to be accommodated.

using the editing tools 16.

The setting can be made in such a way that the first longitudinal extension 7/1 of the first tool holder 64 is adapted to the tool length 73 of the longest of the machining tools 16 to be accommodated. The second longitudinal extension 72 of the second tool holder 65 can of course also be adapted to the tool length 73 of the longest of the machining tools 16 to be accommodated in the second tool holder 65. The figures show machining tools 16 with the same tool length 73 for each tool holder 64, 65 as examples. It can of course be provided that different machining tools 16 with different tool lengths 73 can be accommodated next to one another for each tool holder 64, 65.

the.

Furthermore, it can also be provided that individual processing tools 16 have a tool length 73 which extends over several of the tool receiving locations 64, 65. In this case, it can be provided, for example, that the first receiving comb 67 and the second receiving comb 68 are designed or arranged in such a way that the first receiving recesses 69 and the second receiving recesses 70 are arranged in alignment one behind the other. An individual processing tool 16 with an excessively large tool length 73 can be accommodated in one of the first receiving recesses 69 and extend beyond the corresponding second receiving recess 70. In this case, it must of course be taken into account that the corresponding second receiving recess

memulde 70 remains free of machining tools 16.

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As can also be seen from Fig. 6, it can be provided that a third receiving comb 74 is formed next to the first receiving comb 67. The third receiving comb 74 can be arranged in the extension of the X-axis 10 next to the first receiving comb 67. Furthermore, it can be provided that a fourth receiving comb 75 is formed, wherein the fourth receiving comb 75 can be arranged in the extension of the X-axis 10 next to the second receiving comb 68.

can.

In particular, it can be provided that the fourth receiving comb 75 is arranged in the Z-axis 9 at a distance from the third receiving comb 74. It can also be provided that the third receiving comb 74 has third receiving troughs 76 spaced apart from one another in the X-axis 10 for receiving one of the processing tools 16. It can also be provided that the fourth receiving comb 75 has fourth receiving troughs 77. The fourth receiving troughs 77 can also be arranged at a distance from one another in the X-axis 10.

be in order.

The third receiving comb 74 and the fourth receiving comb 75 can also be mounted individually and independently of one another on the machine tool 1 so that they can be moved in the Z-axis 9, so that the corresponding longitudinal extension of the tool receiving location can be adapted to the machining tools to be accommodated.

16 can be adjusted.

In particular, it can be provided that the tool changing device 61 or the handling system 99 for positioning the receiving combs 67, 68, 74,

75 is used in the Z-axis 9.

As can be seen from Fig. 6, it can of course also be provided that, in addition to the first receiving comb 67 and the third receiving comb 74, further receiving combs are provided at a distance in the direction of the X-axis 10.

Furthermore, it can also be provided that behind the first receiving comb 67

and the second receiving comb 68 further receiving combs are provided.

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These additional receiving combs can, mutatis mutandis to the receiving combs already described, also have receiving recesses and also

if arranged in the tool magazine 62 so as to be movable in the Z-axis 9.

Furthermore, it can be provided that a comb holder 78 is formed in the tool magazine 62, which serves to hold the individual holding combs 67, 68, 74, 75. The comb holder 78 is shown in Fig. 6 for the sake of clarity.

but hidden.

As can be seen particularly well from Fig. 7, it can be provided that the tool changing device 61 comprises a first gripping device 79. The first gripping device 79 can have a first gripping unit 80 and a second gripping unit 81. The first gripping unit 80 and the second gripping unit 81 can be spaced apart from one another with respect to the X-axis 10 at a first gripping unit distance 82.

be arranged in a stable manner.

In particular, it can be provided that the first gripping unit distance 82 is equal to the distance 66 of the individual receiving recesses 69, 70 or a multiple

chen of the distance 66 between the individual receiving troughs 69, 70.

Furthermore, it can be provided that the first gripping device 79 is assigned to the first work spindle 5. In particular, it can be provided that a first of the machining tools 16, which is clamped in the first work spindle 5, can be removed by means of the first gripping unit 80 and then a second of the machining tools 16, which is held in the second gripping unit 81, can be removed.

machining tools 16 are inserted into the first working spindle 5.

In particular, it can be provided that the first gripping unit 80 and the second gripping unit 81 are aligned such that the processing tools 16 are accommodated in the respective gripping unit 80, 81 aligned parallel to the Z-axis 9.

men can be.

Furthermore, it can be provided that a second gripping device 84 is accommodated on the gripping device carrier 83, which has a third gripping unit 85 and a fourth gripping unit 86. The third gripping unit 85 and the fourth gripping unit

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86 can be arranged at a distance from one another with respect to the X-axis 10 at a second gripping unit distance 87. The function or the dimensions of the second gripping device 84 can be designed mutatis mutandis to the first gripping device 79. Furthermore, it can be provided that the second gripping device

direction 84 of the second working spindle 6.

Furthermore, it can be provided that the first gripping device 79 and the second gripping device 84 are arranged at a gripping device distance 88 from each other.

are.

Furthermore, it can be provided that a third gripping device 89 and a fourth gripping device 90 are arranged on the gripping device carrier 83. The third gripping device 89 can be assigned to the third work spindle 12. The fourth gripping device 90 can be assigned to the fourth work spindle 14. The third gripping device 89 and the fourth gripping device 90 can be designed mutatis mutandis to the first gripping device 79 and also each have two gripping devices.

subtleties.

As can also be seen from Fig. 7, it can be provided that the tool changing device 61 has a gripping device head 91. The gripping device carrier 83 can be arranged on the gripping device head 91 so as to be displaceable along the X-axis 10. In particular, it can be provided that the gripping device carrier 83 is coupled to a gripping device carrier rail 92 which is displaceably received in a gripping device head slide 93. The gripping device head slide 93 can be arranged on the gripping device head 91. Furthermore, it can be provided that a gripping device carrier adjustment motor 94 is formed, by means of which the gripping device carrier 83 can be re-

latıv to the gripping device head 91.

Furthermore, it can be provided that the gripping device head 91 is arranged on a gripping device height adjustment mount 95 so as to be displaceable in the Y-axis 11. A guide system can also be formed between the gripping device head 91 and the gripping device height adjustment mount 95. Furthermore

It can be provided that a gripping device main carrier 96 is formed,

44 / 72 A2024/88625-AT

which extends along the Z-axis 9. In particular, it can be provided that the gripping device height adjustment mount 95 is slidably mounted on the gripping device main carrier 96 in the Z-axis 9. In order to move the gripping device height adjustment mount 95 in the Z-axis 9 relative

A drive can also be formed for the gripping device main carrier 96.

Between the gripping device main carrier 96 and the gripping device height

A guide system can also be designed for the adjustment holder 95.

Furthermore, it can be provided that the gripping device main carrier 96 is attached to the machine by means of a first holder 97 or by means of a second holder 98.

frame 4 is accommodated.

As shown schematically in Fig. 6, it can be provided that a handling system 99 is formed, by means of which the individual receiving combs 67, 68, 74, 75 together with the processing tools 16 received therein can be inserted into the machine tool 1 or removed from it. Thus, the tool storage can be expanded by this measure.

the.

In Fig. 8, a second and possibly independent embodiment of the machine tool 1 is shown, wherein again the same reference symbols or component designations are used for the same parts as in the previous figures 1 to 7. In order to avoid unnecessary repetition, reference is made to the detailed description in the previous figures 1 to 7.

referred to or referred to.

As can be seen from Fig. 8, it can be provided that no further work spindles are provided in addition to the first work spindle 5 and the second work spindle 6. The basic structure of the machine tool 1 can be designed in accordance with the first embodiment of the machine tool 1, whereby reference is made at this point to the description of the details of the first embodiment.

struction example of the machine tool 1.

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In this second embodiment of the machine tool 1, a further difference from the first embodiment of the machine tool 1 may be that the tool changing device 61 only has the first gripping device 79 and

the second gripping device 84.

In Fig. 9, a second and possibly independent embodiment of the machine tool 1 is shown, wherein again the same reference symbols or component designations are used for the same parts as in the previous figures 1 to 7. In order to avoid unnecessary repetition, reference is made to the detailed description in the previous figures 1 to 7.

referred to or referred to.

For the sake of clarity, Fig. 9 only shows the individual work spindles 5, 6, 12, 14 together with the associated X-axis adjustment units 17, 18, 100, 101, whereby the remaining structure of the machine tool 1 is the same.

as shown and described in the first embodiment.

As can be seen from Fig. 9, it can be provided that the third work spindle 12 is arranged on a third X-axis adjustment unit 100. It can also be provided that the fourth work spindle 14 is arranged on a fourth X-axis adjustment unit 101. In particular, it can be provided that the third X-axis adjustment unit 100 has third guide carriages 102 by means of which the third X-axis adjustment unit 100 is slidably coupled to the first X-axis guide rail 19 or to the second X-axis guide rail 20.

are.

Furthermore, it can be provided that the fourth X-axis adjustment unit 101 has fourth guide carriages 103, by means of which the fourth X-axis adjustment unit 101 is movably coupled to the first X-axis guide rail 19 or to the second X-axis guide rail 20 in the direction of the X-axis 10.

is.

In this embodiment, the first working spindle 5, the second working spindle

working spindle 6, the third working spindle 12 and the fourth working spindle 14 individually

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and can be moved independently of one another in the direction of the X-axis 10. Of course, in this third embodiment, it can be provided that each of the X-axis adjustment units 17, 18, 100, 101 is provided with a single drive.

can be seen.

In Fig. 10, a second and possibly independent embodiment of the machine tool 1 is shown, wherein again the same reference symbols or component designations are used for the same parts as in the previous figures 1 to 9. In order to avoid unnecessary repetition, reference is made to the detailed description in the previous figures 1 to 9.

referred to or referred to.

For the sake of clarity, only the individual X-axis adjustment units 17, 18, 100, 101 are shown in Fig. 10, whereby the remaining structure of the machine tool 1 can be the same as shown in the first embodiment and

described.

Fig. 10 shows a schematic plan view of a fourth embodiment of a

Configuration of the X-axis adjustment units 17, 18, 100, 101.

As can be seen from Fig. 10, it can be provided that a third X-axis guide rail 104 and a fourth X-axis guide rail 105 are formed. The third X-axis guide rail 104 and the fourth X-axis guide rail 105 can be arranged parallel to the first X-axis guide rail 19 and the second X-axis guide rail 20. Furthermore, it can be provided that the first guide carriages 21 of the first X-axis adjustment unit 17 and the third guide carriages 102 of the third X-axis adjustment unit 100 are arranged offset from one another in accordance with the offset of the X-axis guide rails with respect to the Z-axis 9. The third guide carriages 102 can be slidably received on the third X-axis guide rail 104 or on the fourth X-axis guide rail 105. The fourth guide carriages 103 of the fourth X-axis adjustment unit 101 can be attached to the

third X-axis guide rail 104 or the fourth X-axis guide rail

47172 A2024/88625-AT

rail 105. By offsetting the first guide carriage 21 and the third guide carriage 102 or the second guide carriage 22 and the fourth guide carriage 103 from one another, it can be achieved that the guide carriages can be arranged at a large distance from one another on the X-axis adjustment unit 17, 18, 100, 101 and nevertheless the individual X-axis adjustment units 17, 18, 100, 101 can be moved close to one another, since, as can be seen from Fig. 10, the individual guide carriages can be displaced relative to one another in an overlapping manner with respect to the X-axis 10 due to the offset in the direction of the Z-axis 9. Thus, maximum flexibility of the machine tool 1 can be achieved with a high degree of rigidity and stability of the individual X-axis adjustment units 17, 18, 100, 101, since the individual work spindles 5, 6, 12, 14 are positioned as close to each other as possible.

can be moved.

In this embodiment, the X-axis adjustment units 17, 18, 100, 101 can also be moved individually and independently of one another along the X-axis 10.

be pushed.

This version can also be combined with the version described below

according to Fig. 11.

Fig. 11 shows a second and possibly independent embodiment of the machine tool 1, wherein the same reference symbols or component designations are used for the same parts as in the previous figures 1 to 10. In order to avoid unnecessary repetition, reference is made to the detailed description in the previous figures 1 to 10.

pointed out or referred to.

For the sake of clarity, only the individual work spindles 5, 6, 12, 14 together with the associated X-axis adjustment units 17, 18, 100, 101 are shown in a simplified manner in Fig. 11, whereby the remaining structure of the machine tool 1 can be the same as shown and described in the first embodiment.

is.

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As can be seen from Fig. 11, it can be provided that the third X-axis adjustment unit 100 is coupled to the first X-axis adjustment unit 17 by means of a first X-axis compensation unit 106. The third X-axis adjustment unit 100 can therefore not be completely independent of the first X-axis adjustment unit.

unit 17 cannot be adjustable in the direction of the X-axis 10, but depends on it.

Furthermore, it can be provided that the fourth X-axis adjustment unit 101 with

by means of a second X-axis compensation unit 107 with the second X-axis adjustment unit 18. The third X-axis adjustment unit 100 can thus be displaceable relative to the first X-axis adjustment unit 17. The fourth X-axis adjustment unit 101 can thus be displaceable relative to the second X-axis adjustment unit 18

be movable.

In Fig. 12, a second and possibly independent embodiment of the receiving comb is shown, whereby again the same reference numerals or component designations are used for the same parts as in the previous figures 1 to 11. In order to avoid unnecessary repetition, reference is made to the detailed description in the previous figures 1 to 11.

pointed out or referred to.

The receiving comb, which is shown in Fig. 12, can be used with all other

Combine embodiments of the machine tool 1.

As can be seen from Fig. 12, it can be provided that the first receiving comb 67 has first lower receiving recesses 108 opposite the first receiving recesses 69, which can also serve to receive processing tools 16. Furthermore, it can be provided that the first receiving comb 67 has a locking device 110, by means of which the processing tools 16 can be secured in the first receiving comb 67. This measure can prevent the processing tools 16 located below from falling out. The processing tools 16 can also be locked when manipulating the receiving comb 67, 68 with the handling

system 99 may be necessary.

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Furthermore, it can be provided that the first receiving comb 67 is pivotally mounted about a horizontal axis 111 by 180°, so that either the first receiving troughs 69 or the first lower receiving troughs 108 can be brought to the top of the first receiving chamber 67 in order to

to be able to substitute witness 16.

In particular, the horizontal axis 111 can be arranged parallel to the Z-axis 9

be.

Mutatis mutandis, it may be provided that the second receiving comb 68

second lower receiving recesses 109.

In Fig. 13, a second and possibly independent embodiment of the machine tool 1 is shown, wherein again the same reference symbols or component designations are used for the same parts as in the previous figures 1 to 7. In order to avoid unnecessary repetition, reference is made to the detailed description in the previous figures 1 to 7.

referred to or referred to.

Fig. 13 shows a further embodiment of the machine tool 1 in a

schematic cutaway side view.

As can be seen from Fig. 13, it can be provided that the first receiving comb 67 or the comb holder 78 form part of the housing 112 of the machine tool 1 and the processing tools 16, which are received in the first receiving comb 67, are thus arranged outside the housing 112. In particular, it can be provided that an opening 113 is formed in the housing 112 of the machine tool 1, which opening 113 passes through the comb holder.

recess 78 can be closed.

By means of the first gripping unit 80, the processing tool 16 held in the first receiving comb 67 can be gripped and moved upwards along the Y-axis 11. The first receiving comb 67 can then be

office of the comb holder 78 along the Z-axis 9 to the side,

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around the opening 113 in the housing 112, which is formed by the comb holder 78

is locked, to release.

The machining tool 16 held in the first gripping unit 80 can then be moved downwards along the Y-axis 11 and picked up by the first work spindle 5. The first work spindle 5 can be moved along the Z-axis 9. Thus, with such a configuration, it is not necessary for the first gripping unit 80 to be moved along

the Z-axis 9 is designed to be displaceable.

In Fig. 14, a second and possibly independent embodiment of the machine tool 1 is shown, wherein again the same reference symbols or component designations are used for the same parts as in the previous figures 1 to 13. In order to avoid unnecessary repetition, reference is made to the detailed description in the previous figures 1 to 13.

pointed out or referred to.

As can be seen from Fig. 14, it can be provided that the first work spindle 5 is assigned to the first rotary table 52 and that the second work spindle 6 is assigned to the second rotary table 54 and that the third work spindle 12 is assigned to a third rotary table Error! Reference source could not be found. and that the fourth work spindle 14 is assigned to a fourth rotary table Error!

Reference source could not be found. is assigned.

The embodiments show possible variants, whereby it should be noted at this point that the invention is not limited to the specifically illustrated variants of the same, but rather various combinations of the individual variants with each other are also possible and this possibility of variation due to the teaching on technical action through objective invention in the skill of the person active in this technical field

specialist.

A2024/88625-AT

The scope of protection is determined by the claims. However, the description and the drawings are to be used to interpret the claims. Individual features or combinations of features from the different embodiments shown and described can represent independent inventive solutions in themselves. The features associated with the independent inventive solutions

The underlying task can be found in the description.

All information on value ranges in the description in question is to be understood as including any range and all subranges thereof, e.g. the information 1 to 10 is to be understood as including all subranges starting from the lower limit 1 and the upper limit 10, i.e. all subranges begin with a lower limit of 1 or greater and end with an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

For the sake of clarity, it should be noted that for a better understanding of the structure, some elements are not to scale and/or enlarged.

and/or reduced in size.

A2024/88625-AT

List of reference symbols

1 machine tool 26 second Z-axis adjustment unit 2 first workpiece 3 second workpiece 27 third Z-axis adjustment unit 4 machine frame 28 fourth Z-axis adjustment unit 5 first work spindle 6 second work spindle 29 first Z-axis guide 7 first spindle axis 30 second Z-axis guide 8 second spindle axis 31 third Z-axis guide 9 Z-axis 32 fourth Z-axis guide 10 X-axis 33 first Z-axis drive unit 11 Y-axis unit 12 third work spindle 34 second Z-axis drive unit 13 third spindle axis unit 14 fourth work spindle 35 third Z-axis drive unit 15 fourth spindle axis unit 16 machining tool 36 fourth Z-axis drive unit 17 first X-axis adjustment unit 18 second X-axis adjustment unit 37 Swivel bearing work spindle unit 19 first X-axis guide rail 38 Workpiece clamping device 39 Workpiece table 20 second X-axis guide rail 40 first swivel axis 41 first swivel bearing 21 first guide carriage 42 second swivel bearing 22 second guide carriage 43 first mount 23 first X-axis drive unit 44 second mount unit 45 first mount guide 24 second X-axis drive unit 46 first Y-axis guide 25 first Z-axis adjustment unit rail

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47 second receiving guide slide 72 second longitudinal extension second tool holder 48 second Y-axis guide rail 73 tool length 49 first Y-drive motor 74 third receiving comb 50 second Y-drive motor 75 fourth receiving comb 51 swivel motor 76 third receiving troughs 52 first rotary table 77 fourth receiving troughs 53 first rotary axis 78 comb holder 54 second rotary table 79 first gripping device 55 second rotary axis 80 first gripping unit 56 first rotary motor 81 second gripping unit 57 second rotary motor 82 first gripping unit spacing 58 Y-axis adjustment unit 83 gripping device carrier 59 first workpiece receiving position 84 second gripping device 85 third gripping unit 60 second workpiece receiving position 86 fourth gripping unit 87 second gripping unit spacing 61 tool changing device 88 gripping device spacing 62 Tool magazine 89 third gripping device 63 storage level 90 fourth gripping device 64 first tool holder 91 gripping device head 92 gripping device carrier 65 second tool holder rail 93 gripping device head slide 66 distance 94 _gripping device carrier adjustment 67 first holder comb 68 second holder comb 95 _gripping device height adjustment 69 first holder recess 70 second holder recesses 96 gripping device main carrier 71 first longitudinal extension 97 first holder tool holder location 98 second holder

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99 Handling system

100 third X-axis adjustment unit

101 fourth X-axis adjustment unit

102 third guide carriage

103 fourth guide carriage

104 third X-axis guide rail

105 fourth X-axis guide rail

106 first X-axis compensation unit

107 second X-axis compensation unit

108 first lower receiving troughs

109 second lower receiving troughs

110 Locking device

111 Axis

112 Enclosure

113 Opening

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Claims (18)

Patent claims 1. Machine tool (1) comprising: - a machine frame (4); - a first work spindle (5) which is rotatably mounted about a first spindle axis (7), wherein the first spindle axis (7) is arranged parallel to a horizontal Z-axis (9); - a second work spindle (6) which is rotatably mounted about a second spindle axis (8), wherein the second spindle axis (8) is arranged parallel to the horizontal Z-axis (9), wherein the first work spindle (5) and the second work spindle (6) are arranged next to one another at a distance from one another in a horizontal X-axis (10); - a workpiece clamping device (38) with a first workpiece receiving location (59) which is designed to receive at least one first workpiece (2), characterized in that the first work spindle (5) is displaceable along the X-axis (10) by means of a first X-axis adjustment unit (17) and the second work spindle (6) is displaceable along the X-axis (10) by means of a second X-axis adjustment unit (18), wherein the first work spindle (5) and the second work spindle (6) are displaceable independently of one another along the X-axis (10) and that the first work spindle (5) is displaceable along the Z-axis (9) by means of a first Z-axis adjustment unit (25) and the second work spindle (6) is displaceable along the Z-axis (9) by means of a second Z-axis adjustment unit (26), wherein the first work spindle (5) and the second work spindle (6) are displaceable independently of one another along the Z-axis (9) and that the first workpiece receiving location (59) is adjusted by means of a Y-axis adjustment unit (58) is displaceable along a vertical Y-axis (11). 2. Machine tool (1) according to claim 1, characterized in that the first working spindle (5) is operated exclusively by means of the first X-axis A2024/88625-AT adjustment unit (17) is displaceable along the X-axis (10) and the second work spindle (6) is exclusively controlled by means of a second X-axis adjustment unit (18). long the X-axis (10). 3. Machine tool (1) according to claim 1 or 2, characterized in that the workpiece clamping device (38) comprises a second workpiece receiving location (60) which is designed to receive a second workpiece (3), wherein the first workpiece receiving location (59) and the second workpiece receiving location (60) are jointly adjustable by means of a Y-axis adjustment unit (58). can be moved along the vertical Y-axis (11). 4. Machine tool (1) according to one of the preceding claims, characterized in that the first workpiece receiving location (59) is arranged on a workpiece table (39) which is pivotably mounted about a pivot axis (40), the pivot axis (40) being aligned parallel to a horizontal X-axis (10), the workpiece table (39) being able to be pivoted by means of the Y-axis Axis adjustment unit (58) is displaceable along a vertical Y-axis (11). 5. Machine tool (1) according to claim 3 and 4, characterized in that the first workpiece receiving location (59) and the second workpiece receiving station (60) on the workpiece table (39). 6. Machine tool (1) according to one of the preceding claims, characterized in that a third work spindle (12) is formed, which is mounted rotatably about a third spindle axis (13), wherein the third spindle axis (13) is arranged parallel to the horizontal Z-axis (9) and wherein the third work spindle (12) is arranged next to the first work spindle (5) and that a fourth work spindle (14) is formed, which is mounted rotatably about a fourth spindle axis (15), wherein the fourth spindle axis (15) is arranged parallel to the horizontal Z-axis (9) and wherein the fourth work spindle (14) is arranged next to the second working spindle (6). A2024/88625-AT 7. Machine tool (1) according to claim 6, characterized in that the first work spindle (5) and the third work spindle (12) are jointly displaceable along the X-axis (10) by means of the first X-axis adjustment unit (17) and that the second work spindle (6) and the fourth work spindle (14) are jointly displaceable along the X-axis by means of the second X-axis adjustment unit (18). (10) are movable. 8. Machine tool (1) according to claim 7, characterized in that the third work spindle (12) is displaceable relative to the first work spindle (5) along the X-axis (10) by means of a first X-axis compensation unit (106) and that the fourth work spindle (14) is displaceable relative to the second work spindle (6) along the X-axis (10) by means of a second X-axis compensation unit (107). 9. Machine tool (1) according to claim 6, characterized in that the first work spindle (5) is displaceable along the X-axis (10) by means of the first X-axis adjustment unit (17) and the third work spindle (12) is displaceable along the X-axis (10) by means of a third X-axis adjustment unit (100) and the second work spindle (6) is displaceable along the X-axis (10) by means of the second X-axis adjustment unit (18) and the fourth work spindle (14) is displaceable along the X-axis (10) by means of a fourth X-axis adjustment unit (101), wherein the first work spindle (5), the second work spindle (6), the third work spindle (12) and the fourth work spindle (14) are independent of one another. which can be moved along the X-axis (10). 10. Machine tool (1) according to one of claims 6 to 9, characterized in that the third work spindle (12) is displaceable along the Z-axis (9) by means of a third Z-axis adjustment unit (27) and the fourth work spindle (14) is displaceable along the Z-axis (9) by means of a fourth Z-axis adjustment unit (28), wherein the first work spindle (5), the second work spindle (6), the third work spindle (12) and the fourth work spindle (14) are displaceable independently of one another along the Z-axis (9). A2024/88625-AT 11. Machine tool (1) according to one of the preceding claims, characterized in that a first X-axis guide rail (19) and a second X-axis guide rail (20) are formed on the machine frame (4), wherein the first X-axis guide rail (19) and the second X-axis guide rail (20) are accommodated on the machine frame (4) at a distance from one another in the Z-axis (9), wherein the first X-axis adjustment unit (17) is displaceably mounted on the first X-axis guide rail (19) by means of at least one first guide carriage (21) and is displaceably mounted on the second X-axis guide rail (20) by means of at least one further first guide carriage (21), and wherein the second X-axis adjustment unit (18) is mounted on the first X-axis guide rail (19) by means of at least one second guide carriage (22) and is displaceably mounted on the second X-axis guide rail (20) by means of at least one further first guide carriage (21), and wherein the second X-axis adjustment unit (18) is mounted on the first X-axis guide rail (19) by means of at least one second guide carriage (22) and is displaceably mounted on the second X-axis guide rail (20) by means of at least one further first guide carriage (21). another second guide carriage (22) on the second X-axis guide rail (20) is slidably mounted. 12. Machine tool (1) according to claim 6 and 11, characterized in that the third X-axis adjustment unit (100) is displaceably mounted on the first X-axis guide rail (19) by means of at least one third guide carriage (102) and is displaceably mounted on the second X-axis guide rail (20) by means of at least one further third guide carriage (102) and that the fourth X-axis adjustment unit (101) is displaceably mounted on the first X-axis guide rail (19) by means of at least one fourth guide carriage (103) and is displaceably mounted on the second X-axis guide rail (20) by means of at least one further fourth guide carriage (103) is. 13. Machine tool (1) according to claim 6 and 11, characterized in that a third X-axis guide rail (104) and a fourth X-axis guide rail (105) are formed on the machine frame (4), wherein the first X-axis guide rail (19), the second X-axis guide rail (20), the third X-axis guide rail (104) and the fourth X-axis guide rail A2024/88625-AT (105) are each mounted on the machine frame (4) at a distance from one another in the Z-axis (9) wherein the third X-axis adjustment unit (100) is displaceably mounted on the third X-axis guide rail (104) by means of at least one third guide carriage (102) and is displaceably mounted on the fourth X-axis guide rail (105) by means of at least one further third guide carriage (102) and that the fourth X-axis adjustment unit (101) is displaceably mounted on the third X-axis guide rail (104) by means of at least one fourth guide carriage (103) and is displaceably mounted on the fourth X-axis guide rail (105) by means of at least one further fourth guide carriage (103) is. 14. Machine tool (1) according to one of claims 4 to 13, characterized in that the workpiece table (39) is rotatably mounted on the machine frame (4) by means of a first pivot bearing (41) and a second pivot bearing (42), wherein the Y-axis adjustment unit (58) has a first mount (43) which is guided on at least one first Y-axis guide rail (46) and a second mount (44) which is guided on at least one second Y-axis guide rail (48), wherein the first pivot bearing (41) is arranged on the first mount and the second pivot bearing (42) is received on the second receptacle (44). 15. Machine tool (1) according to claim 14, characterized in that the first holder (43) is displaceable along the vertical Y-axis (11) by means of a first Y-drive motor (49) and that the second holder (44) is displaceable along the vertical Y-axis (11) by means of a second Y-drive motor (50). is movable. 16. Machine tool (1) according to one of claims 3 to 15 and claim 6, characterized in that the first work spindle (5) and the third work spindle (12) are assigned to the first workpiece receiving location (59) and A2024/88625-AT the second working spindle (6) and the fourth working spindle (14) to the second tool piece receiving location (60). 17. Machine tool (1) according to one of claims 2 to 16 and claim 5, characterized in that the first workpiece receiving location (59) comprises a first rotary table (52) by means of which the first workpiece (2) is mounted so as to be rotatable about a first axis of rotation (53) arranged perpendicular to the pivot axis (40), and in that the second workpiece receiving location (60) comprises a second rotary table (54) by means of which the second workpiece (3) is ...). the second axis of rotation (55) arranged relative to the pivot axis (40) is rotatably mounted. 18. Machine tool (1) according to one of the preceding claims, characterized in that two of the first working spindles (5) are arranged one above the other on the first Z-axis adjustment unit (25) and that two of the second working spindles (6) are arranged one above the other on the second Z-axis adjustment unit (26). are arranged. A2024/88625-AT