DE102011056099B3 - Machine tool e.g. honing tool for vertical hone processing of workpiece, has carriages to hold respective tool units with tool supports, and primary drive unit to displace the respective carriages in horizontal direction - Google Patents

Abstract

The machine tool (10) has a workpiece carrier (16) arranged on a machine base (12). The carriages (28a-28d) are arranged on machine frame (14) to hold the respective tool units with tool supports. Each carriage is displaced in horizontal direction, and each tool unit is displaced in vertical direction relative to respective carriage. A primary drive unit (38) is provided to displace the carriages (28a,28c) in horizontal direction. A secondary drive unit is provided to displace the carriages (28b,28d) in horizontal direction.

Description

The invention relates to a machine tool, comprising a machine bed, a workpiece carrier device arranged on the machine bed, and a machine frame.

From the DE 10 2007 045 619 A1 is a device for fine machining of workpieces known.

From the DE 10 2004 053 503 A1 there is known a honing machine for honing workpieces having a plurality of workstations, each workstation being configured to perform at least one operation on a tool, and at least a portion of the workstation being provided as a honing station for performing at least one honing operation on a workpiece. There is provided a conveyor system for conveying workpieces to the workstations and workstations.

From the EP 1 511 598 B1 is a machine for ultra-fine machining of workpieces by honing with a driven by an electric motor mounted in a spindle housing honing spindle known, the lifting movement is effected by a linear motor whose stationary part on the machine frame and the moving part of the spindle housing is arranged.

From the EP 2 374 574 A1 is a high-speed honing machine with a rotating and rotatable tool spindle for receiving the honing tool and known with a workpiece carrier, wherein the workpiece carrier is driven to oscillate by means of a linear motor.

From the DE 40 31 284 A1 a device for honing, internal grinding or drilling holes in workpieces is known, in which the tool is accommodated at the end of a spindle supported by a machine frame, which is drivable by a spindle drive and a Hubtrieb up and down, and in which the Workpieces successively through one or more processing stations. Tool, spindle, spindle drive, linear actuator and feed device are on a bearing rail, which is fixedly mounted on the machine frame, horizontally displaceable and firmly pressed by clamping means.

The invention has for its object to provide a machine tool of the type mentioned above, which has extensive adjustment options and extensive workpiece machining capabilities.

This object is achieved according to the invention in the machine tool mentioned above in that a first carriage is provided which holds at least a first tool unit with a first tool carrier device, a second carriage is provided which holds at least a second tool unit with a second tool carrier device, a third carriage is provided, which holds at least one third tool unit with a third tool carrier device, a fourth carriage is provided, which holds at least a fourth tool unit with a fourth tool carrier device, wherein the carriages are each displaceable in a first direction and the respective tool carrier relative to the respective carriage is displaceable in a second direction transverse to the first direction, a first drive means is provided, which is associated with the first carriage and the third carriage and whose Ver Slidable movement in the first direction causes, and a second drive means is provided, which is associated with the second carriage and the fourth carriage and causes their displacement movement in the first direction.

In the solution according to the invention, a plurality of carriages movable in the first direction are provided, wherein the first carriage and the third carriage are coupled together in a carriage combination and the second carriage and the fourth carriage are coupled together in a carriage combination. Basically, the carriage combinations can be moved independently of each other, so that two independent axes of motion are present in the first direction. At least one movement axis for the mobility in the second direction (which is transversal and in particular perpendicular to the first direction) is present on each carriage, so that at least four dynamic movement axes are present here. This results in a high variability for the processing of different workpieces.

The distance between the first carriage and the second carriage or the third carriage and the fourth carriage can be adjusted via a control device of the machine tool by appropriate control of the first drive means and the second drive means and thereby to a certain extent set "software". If, for example, a change in a distance between machining points on a workpiece requires readjustment, then this can be carried out "without modification" of the machine tool.

The machine tool according to the invention makes it possible, for example, to machine two workpieces simultaneously, wherein a first workpiece is machined with the first tool carrier device and the second tool carrier device and the second workpiece is processed with the third tool carrier device and the fourth tool carrier device. By simultaneously moving the first carriage combination and the second carriage combination via the corresponding first drive device and the second drive device, a displacement of a tool carrier device from one machining point to another machining point can be achieved simultaneously on the first workpiece and the second workpiece. For example, if the machining location is a hole, a "hole to hole" displacement can be achieved. For example, a first processing point and a second processing point are respectively provided on the first workpiece and the second workpiece. The first processing point is first processed with the first tool carrier device. After completion of this machining operation, the first tool carrier device is brought to the second processing point by appropriate displacement of the first carriage and the second carriage. With a correspondingly adjusted distance between the first carriage and the second carriage, the second processing point can then be processed by the first tool carrier device, and the first processing point can be processed by the second tool carrier device (synchronously or asynchronously). By linking in the first carriage combination and the second carriage combination, these machining operations can then be carried out simultaneously on the first workpiece and the second workpiece. It can be carried out in succession at the same processing point different machining operations such as rough machining operations and fine machining operations, which in turn can be performed simultaneously on different workpieces.

In particular, a displacement movement of the first carriage and the third carriage via the first drive means is coupled and / or synchronized. It can thereby keep the number of necessary drives low.

For the same reason, it is favorable if a displacement movement of the second carriage and the fourth carriage via the second drive means is coupled and / or synchronized.

Specifically, a distance in the first direction between the first carriage and the third carriage is constant regardless of the shift position thereof and / or a distance in the first direction between the second carriage and the fourth carriage is constant regardless of the shift position thereof. It can thereby keep the number of drives low. As a result, the design effort is reduced.

Further, a distance in the first direction between the first carriage and the second carriage via the first drive means is adjustable and / or a distance in the first direction between the third carriage and the fourth carriage is adjustable. As a result, the machine tool can be easily adapted without modification in order to be able to set dimensional changes in a simple manner, for example, for simultaneous machining on a workpiece.

In an advantageous embodiment, the first drive device and / or the second drive device is a ball screw device, wherein in particular the first carriage and the third carriage are coupled to a same first screw device of the first drive means and / or the second carriage and the fourth carriage to a second same Threaded spindle device of the second drive means are coupled. By means of a ball screw device, a coupling of the first carriage and the third carriage in a first carriage combination and of the second carriage and of the fourth carriage in a second carriage combination can be realized in a simple manner. Via corresponding spindle nuts, the first carriage and the third carriage or the second carriage and the fourth carriage are coupled to the same threaded spindle device.

It is advantageous if the first carriage and the second carriage have a common web guide, which is held in particular on the machine frame. As a result, the machine tool can be designed in a structurally simple manner.

For the same reason, it is favorable if the third carriage and the fourth carriage have a common web guide, which is held in particular on the machine frame.

It is then also advantageous if the first carriage, the second carriage, the third carriage and the fourth carriage have a common web guide, which is held in particular on the machine frame. For example, guide rails can then be used for all carriages.

It is favorable if the first direction is a horizontal direction with respect to the direction of gravity. For example, a movement in the first direction can be used to position a tool on the workpiece before workpiece machining.

In particular, the second direction is a vertical direction with respect to the direction of gravity. The second direction is in particular a machining direction; During the machining of a workpiece, a movement of the corresponding tool carrier device in the second direction takes place in order to carry out the workpiece machining. For example, the movement in the second direction is a machining dipping motion in a fine boring process or an oscillating motion in a honing process.

In particular, the machine tool has a first dynamic movement axis for the displacement movement of the first carriage and the third carriage in the first direction, has a second dynamic movement axis for the displacement movement of the second carriage and the fourth carriage in the first direction, has a third dynamic movement axis for the translational movement of the first tool support in the second direction, has a fourth dynamic movement axis for the displacement movement of the second tool support in the second direction, has a fifth dynamic movement axis for the displacement movement of the third tool support in the second direction, and has a sixth dynamic movement axis for the displacement movement of the fourth tool carrier device in the second direction. This results in a large number of possibilities of movement, so that in particular a plurality of workpieces can be processed simultaneously and / or a plurality of machining operations can be carried out simultaneously on one workpiece.

In particular, the first carriage and the second carriage are adjacent, the second carriage and the third carriage are adjacent, and the third carriage and the fourth carriage are adjacent.

In one embodiment, the workpiece carrier device comprises at least one workpiece carrier, which is displaceable in a direction that is transverse to the first direction and the second direction, and / or that the at least one workpiece carrier is rotatable and / or pivotable.

This results in an optimized positioning possibility of a workpiece with respect to a tool.

In one embodiment, the tool unit comprises a lifting drive device. About the Hubantriebseinrichtung can perform a lifting movement of the corresponding tool carrier device in a second direction. This lifting movement can be used for positioning a tool before workpiece machining and during a workpiece machining operation for moving the tool in the second direction, such as for a dipping motion or an oscillating motion.

It is also expedient if a tool unit comprises a tool drive device for driving a tool, in particular in a rotational movement.

In one embodiment, a tool unit comprises a tool adjustment device, by means of which a tool or one or more elements of a tool can be delivered to the workpiece transversely to a tool axis, and / or comprises a rotary distribution device for fluid. For example, honing stones can be delivered to the workpiece via an adjustment element (such as an adjustment rod) of a tool via a tool adjustment device. Via a rotary distribution device, fluid such as coolant, lubricant or measuring air can be supplied to a tool.

In one embodiment, at least one tool magazine is provided, which is arranged movably and in particular pivotably and / or displaceably on the machine bed or machine frame and has a plurality of receiving locations, wherein in a first position the at least one tool magazine is positioned so that a tool exchange at one or in a second position is the at least one tool magazine outside a processing area for workpieces, in particular a pivot axis is oriented parallel to the second direction or a displacement axis is at least approximately transverse to the first direction. Such a tool magazine can be used to exchange tools easily and quickly. It is then possible to carry out a tool exchange within a short time also on several tool units.

In one embodiment, the at least one tool unit is a honing tool unit. It is thereby possible to perform a honing and in particular vertical honing. The displacement mobility of the corresponding tool carrier in the second direction can be utilized for oscillatory motion during the honing process.

Conveniently, the machine tool is designed as a machining center. Thereby This results in extensive positioning and processing options.

In particular, a tool axis and in particular a rotational axis of a tool carrier device is oriented transversely and in particular perpendicular to the machine bed. This can compensate for gravity effects. For example, this makes it easy to perform a vertical Honbearbeitung.

The following description of preferred embodiments is used in conjunction with the drawings for further explanation of the invention.

Show it:

1 a perspective view of an embodiment of a machine tool according to the invention (without fairing);

2 a plan view of the machine tool according to 1 ;

3 a side view of the machine tool according to 1 ;

4 a front view of the machine tool according to 1 ;

5 a sectional view taken along the line 5-5 according to 4 ;

6 the machine tool according to 1 with tool magazines, which are in a non-operative position;

7 the same view as 6 wherein the tool magazines are in a tool exchange position;

8th the machine tool according to 1 with another embodiment of tool magazines; and

9 schematically a carriage assembly of the machine tool according to 1 ,

An embodiment of a machine tool according to the invention is a machining center. An embodiment of a machining center, which in the 1 to 5 shown in partial representation schematically and there with 10 is designated, comprises a machine bed 12 on which a machine frame 14 is arranged. About the machine bed 12 is the machine tool 10 placed on a surface.

The machine frame 14 is formed like a portal and protrudes in a direction relative to the direction of gravity g vertical direction over the machine bed 12 out.

On the machine bed 12 sits a workpiece carrier device 16 , This comprises in the embodiment shown a first workpiece carrier 18a and a second workpiece carrier 18b , The respective workpiece carriers 18a . 18b are linearly displaceable in one direction Z (direction and opposite direction). The Z-direction is in particular a horizontal direction with respect to the direction of gravity g. The workpiece carriers 18a . 18b are on the machine bed 12 via a corresponding web guide 20 held.

It can be provided that a workpiece carrier 18a . 18b also around a B axis 22 is rotatable. The B axis 22 is in particular perpendicular to the Z-direction and is, for example, with respect to the direction of gravity g a vertical axis. Alternatively or additionally, a pivoting about one or more axes may be provided. A pivot axis is, for example, a horizontal axis perpendicular to the Z direction.

The machine tool 10 has a control device, which is at least partially disposed in a control box. The control device can be used to control processes of workpiece machining.

The machining center 10 has a front side 24 and a back 26 , A workroom 27 points to the front 24 out. He is to the back 26 through the machine frame 14 and the components arranged thereon (see below).

On the machine frame 14 are several sleds 28 held. In particular, on the machine frame 14 (see in particular 9 ) a first sled 28a , a second sled 28b , a third sled 28c and a fourth sled 28d held. These sledges 28 are arranged in a first direction X side by side with the order (for example, from right to left): First slide 28a second sled 28b , third sleigh 28c fourth carriage 28d , The sledges 28 are each displaceable in the first direction X (direction and opposite direction), wherein a shift position can be fixed. The first direction X is transverse and in particular perpendicular to the Z direction. The first direction X is in particular a horizontal direction with respect to the direction of gravity g.

On the machine frame 14 is a leadership facility 30 arranged. The management device 30 includes in particular vertically spaced guide rails 32a . 32b , The guide rails 32a . 32b are parallel to the X direction (first Direction) and spaced perpendicular thereto in a second direction (Y-direction). About appropriate guide shoes 34a . 34b are the sledges 28 on the guide rails 32a . 32b held, with a displacement in the first direction is possible.

In particular, all the sledges are sitting 28a . 28b . 28c . 28d on the guide rails 32a . 32b that is the management device 30 forms a common guide device and thus a common web guide for all slides 28 ,

The respective carriages 28 are independent elements, which are separated from each other and basically can be moved independently of each other (see below). Every sled 28 has a base 36 on, on which the guide shoes 34a . 34b are fixed. This base 36 has an extension in the first direction and an extension in the second direction Y perpendicular to the first direction X. In the illustrated embodiment, the width in the X-direction is smaller than the height in the Y-direction. The base 36 For example, it has at least approximately a rectangular cross-section.

The first sled 28a and the next adjacent third sleigh 28c form a first sled combination. The second sled 28b and the next adjacent fourth sled 28d form a second sled combination. The first sleigh combination with the sledges 28a and 28c is a first drive device 38 assigned. The first drive device 38 drives a displacement movement of the first carriage 28a and the third sled 28c coupled and synchronous to. The second carriage combination with the carriages 28b and 28d is a second drive device 40 assigned. This drives the sledges 28b and 28d coupled in the displacement movement in the first direction X and synchronous to. Basically, the movement in the first direction X of the first carriage combination 28a . 28c regardless of the displacement movement in the first direction X of the second carriage combination 28b . 28d , Within the respective first carriage combination and second carriage combination, the displacement movement is rigidly coupled.

In one embodiment, the first drive means 38 and the second drive means 40 each formed by ball screw devices. The first drive device 38 then includes a first threaded spindle device 42 with (at least) one threaded spindle extending in the first direction. The first sled 28a and the third sled 28c are with a corresponding spindle nut 44 or 46 to the first threaded device 42 coupled. A rotation of the threaded spindle then causes a synchronous displacement movement of these carriages 28a and 28c ,

Accordingly, the second drive device comprises 40 a second threaded spindle device 48 , To a corresponding threaded spindle of the second threaded device 48 are the second sled 28b via a spindle nut 50 and the fourth sled 28d via a spindle nut 52 coupled.

In this arrangement, the distance of the carriage 28a and 28c stuck in the first carriage combination. Further, the distance between the carriages 28b and 28d stuck in the second carriage combination. The distance between the first carriage combination and the second carriage combination, that is, the distance between the first carriage 28a and the second sled 28b or the distance between the third carriage 28c and the fourth sled 28d is basically variable. The first drive device 38 and the second drive means 40 are basically independently controllable by the control device of the machining center 10 ,

The distance between the carriages 28a and 28c respectively 28b and 28d is defined as "hardware-based". The distance between the carriages 28a and 28b respectively 28c and 28d is defined to a certain extent "software-based" and variable without modification of the machine tool.

In an advantageous embodiment, the distance between the first carriage 28a and the third sled 28c same as the distance between the second carriage 28b and the fourth sled 28d ,

For the mobility in the first direction points the machining center 10 a first dynamic movement axis for the displacement movement of the first carriage combination 28a . 28c in the first direction X, and has a second dynamic movement axis for the displacement movement of the second carriage combination 28b . 28d in the first direction X. In a workpiece machining, the first movement axis and the second movement axis can be coupled to one another via the control device and, for example, be synchronized with one another. In principle, however, an independent shift in the first movement axis and the second movement axis is possible (as long as collisions are avoided).

At the respective slide 28 is each a tool unit 54 with a respective Tool carrier device 56 held. The first sled 28a holds a first tool unit 54a with a first tool carrier device 56a ; the second sled 28b holds a second tool unit 54b with a second tool carrier device 56b ; the third sled 28c holds a third tool unit 54c with a third tool carrier device 56c ; the fourth sled 28d holds a fourth tool unit 54d with a fourth tool carrier device 56d ,

A tool unit 54 includes a holder 58 over which the tool unit 54 on the corresponding slide 28 is fixed. On the holder 58 sits a tab element 60 lockable. The tab element 60 adjacent sled 28a . 28b respectively 28c . 28d is oriented obliquely to the X direction towards the next adjacent carriage of the other carriage combination. This achieves a closely spaced arrangement of adjacent tool carriers 56a . 56b respectively 56c . 56d ,

On the tab element 60 again a holder sits 62 the corresponding tool carrier device 56 , This is in particular on the housing 63 a spindle motor (see below) fixed.

The tool carrier device 56 is on the holder 58 slidably guided in the second direction Y (direction and opposite direction). The second direction Y is transverse and in particular perpendicular to the first direction (X direction). Further, the second direction Y is transverse and in particular perpendicular to the Z direction (the Z direction is a third direction). The second direction Y is in particular a vertical direction with respect to the direction of gravity g. For displacement guidance and movement sits rigidly on the tab element 60 (Mounting bracket) a carriage 65 passing through a guiding direction 67 on the holder 58 is guided.

The holder 58 is a lifting drive device 64 assigned. This can cause an adjustment in the second direction Y, in particular a set position is detected.

The lifting drive device 64 includes, for example, a ball screw or a hydraulic drive. In the embodiment shown, it comprises a linear motor. A stator 69 sits on the holder 58 , A permanent magnet device is seated on the carriage 65 ,

The tool carrier device 56 includes a tool spindle 66 which are about an axis of rotation 68 is rotatable. The rotation axis 68 is in particular oriented parallel to the second direction and preferably in a vertical direction.

The tool carrier device 56 includes a tool drive device 70 for the rotary drive of a tool 72 around the axis of rotation 68 , The tool drive device 70 is in particular by a spindle motor with housing 63 educated. The tool drive device 70 In one embodiment, during the displacement movement of the tool carrier device 56 moved along.

In one embodiment, the spindle motor is the tool drive device 70 designed as a hollow shaft motor. It is for example a tool adjustment device 71 (with adjustment mechanism and adjustment drive (s)) provided to the tool or elements of the tool 72 as Honelemente transverse to the axis of rotation 68 to deliver. Corresponding elements of the adjustment preferably sit above the spindle motor and are performed by a hollow shaft.

The tool spindle 66 has an interface 73 for a tool or a tool device 75 on. The tool device 75 includes, for example, a tool 72 and a tool stick 72 ' ,

About the Hubantriebseinrichtung 64 can be a rotating tool 72 move in the second direction Y As a result, a workpiece machining such as honing or fine boring can be performed. When honing can be, for example, on the Hubverschieblichkeit the corresponding tool carrier device 56 cause an oscillatory movement in the second direction.

In a fine boring process, for example, via the displaceability in the second direction Y, an immersion movement of a corresponding tool into a workpiece can be performed.

A tool unit 54 preferably has a rotary distributor for fluid. Via the rotary distributor, a fluid such as a coolant, lubricant, measuring air can be passed through the interface 73 the tool 72 respectively. In particular, a coupling through a spindle is possible to perform, for example, a tool internal cooling.

In one embodiment ( 6 . 7 ) are on the machine bed a first tool magazine 74a and a second tool magazine 74b arranged. The first tool magazine 74a and the tool magazine 74b are basically the same. The tool magazines 74a and 74b are on opposite sides of the machine bed 12 arranged. In particular, lie the Workpiece carrier 18a and 18b between the tool magazines 74a and 74b ,

The respective tool magazine 74a respectively 74b includes a pillar 76 , The pillar 76 is pivotable on the machine frame 12 arranged. A pivot axis 78 is in particular a vertical axis or is in particular parallel to the second direction Y. At the respective column 78 sits a holder 80 with reception places 82 for tools 72 , In principle, tools can be used 72 a tool head and an additional element, via which they are connected to the tool spindle 66 can be coupled, have.

The holder 80 In particular, it has a series of spaced apart and separate seats 82 , The holder 80 with the reception places 82 has a calculation form. Bridge elements between adjacent seats form "prongs" of the rake. A recording place 82 is to a back through a wall 84 limited. It is open to the opposite front. Over the open side can be a tool 72 from a recording place 82 be removed or inserted into this.

The corresponding tool magazine 74a . 74b has a first pivot position ( 7 ), in which the corresponding holder 80 in front of one or more tool units 54 is positioned. It is in particular aligned at least approximately parallel to the first direction. By a movement over the corresponding slide 28 in the first direction and in the second direction is a placement of the corresponding tool unit 54 at the intended location 82 possible to carry out a tool exchange.

The tool magazines 74a . 74b also have a second pivot position ( 6 ), in which the tool magazine 78a . 78b is pivoted out of the workspace. In this second pivot position of the respective holder 80 laterally to the work space 27 arranged and oriented, for example, at least approximately parallel to a machine side. In particular, it is oriented at least approximately parallel to the Z direction.

In a variant of an embodiment ( 8th ) are a first tool magazine 124a and a second tool magazine 124b intended. The tool magazines 124a . 124b have appropriate holders 126 on. A holder 126 is especially in one direction 128 (Displacement direction) displaceable. The direction 128 is in particular parallel to the Z direction. A shift track 130 the respective holder 126 lies between the workpiece carrier device 16 and the machine frame 14 ,

During a machining process, the tool magazines are 124a . 124b in a second position outside the workspace 27 at or near the machine frame 14 , For a tool change process they are from the machine frame 14 weggeschoben and thereby positioned so that, for example, by a movement in the Y direction of the corresponding tool carrier device 56a etc. of the corresponding tool unit 54a etc. a tool from the holder 126 is removable or can be brought into such. Alignment in the X direction is done by positioning a carriage 28 ,

In the embodiment shown, the tool magazines 124a . 124b receiving sites 132 on, which are formed by closed recesses. A removal of a tool or insertion of a tool from a receiving space 132 or in a recording place 132 is only possible in the vertical direction.

It is also possible for a tool magazine to be brought into a first position (tool change position) and a second position (rest position) and vice versa with a combination of pivoting movement and displacement movement.

The machine tool according to the invention 10 works as follows:
About the common first drive device 38 are the sledges 28a and 28c the first carriage combination coupled together. About the second drive device 40 are the sled 28b and the sled 28d coupled together in the second carriage combination.

The sledges 28a . 28c and 28b . 28d the corresponding carriage combination are moved together. The carriage combinations are in principle independently movable or it is possible, a corresponding distance between the carriage of the first carriage combination 28a . 28c and the second carriage combination 28b . 28d variable. Optionally, this distance may also be "software-like" such as during operation of the machine tool 10 to be changed.

In a workpiece machining is in particular a workpiece carrier device 16 the workpiece or workpieces in a suitable position to the respective tool units 54 brought. The displacement of the respective carriage combinations in the first direction X is further provided for a corresponding orientation. In the actual machining process is in particular the workpiece carrier device 16 determined in the Z direction and the carriage combinations are determined in terms of their mobility in the X direction. About a lifting movement in the second direction of the respective tool units 54 the workpiece processing takes place like fine boring or honing.

In addition to the above-mentioned first movement axis and the second movement axis of the carriage combinations, the machine tool 10 even more basically mutually independent axes of motion, namely the respective displaceability in the second direction Y of the respective tool carrier device 56 , In the embodiment shown, these are four additional axes of movement.

At the machine tool 10 can be used, for example, with the tools 54a . 54b For example, edit a workpiece at two different locations. With the tool units 54c . 54d can be synchronously edit a second workpiece. Basically, however, with respect to different carriage combinations and / or with respect to different tool carrier devices 56 (in the mobility in the second direction Y) also a synchronous editing possible.

The corresponding machine tool 10 can be compared to the distance between the front 24 and the back 26 train compact.

When as a tool unit 54 For example, a honing tool unit is used, vertical honing machining can be performed. In particular, an intended honing tool is then cantilevered.

LIST OF REFERENCE NUMBERS

10

machining center

12

machine bed

14

machine frame

16

Workpiece carrier device

18a

First workpiece carrier

18b

Second workpiece carrier

20

web guide

22

B-axis

24

front

26

back

27

working space

28a

First sled

28b

Second sled

28c

Third sleigh

28d

Fourth sled

30

guide means

32a

guide rails

32b

guide rails

34a

guide shoe

34b

guide shoe

36

Base

38

First drive device

40

Second drive device

42

First threaded spindle device

44

spindle nut

46

spindle nut

48

Second threaded spindle device

50

spindle nut

52

spindle nut

54a

First tool unit

54b

Second tool unit

54c

Third tool unit

54d

Fourth tool unit

56a

First tool carrier device

56b

Second tool carrier device

56c

Third tool carrier device

56d

Fourth tool carrier device

58

holder

60

tab member

62

holder

63

casing

64

elevating drive

65

carriage

66

tool spindle

67

guide means

68

axis of rotation

69

stator

70

Tool driving device

71

Werkzeugverstelleinrichtung

72

Tool

72 '

tool stick

73

interface

74a

First tool magazine

74b

Second tool magazine

75

tooling

76

pillar

77

rotary distributor

78

swivel axis

80

holder

82

receiving sites

84

wall

124a

First tool magazine

124b

Second tool magazine

126

holder

128

direction

130

shift rail

132

recording space

Claims (21)

Machine tool comprising a machine bed ( 12 ), one on the machine bed ( 12 ) arranged workpiece carrier device ( 16 ), a machine frame ( 14 ), a first slide ( 28a ), which at least one first tool unit ( 54a ) with a first tool carrier device ( 56a ), a second carriage ( 28b ), which at least one second tool unit ( 54b ) with a second tool carrier device ( 56b ) holds, one third slide ( 28c ), which at least one third tool unit ( 54c ) with a third tool carrier device ( 56c ), a fourth carriage ( 28d ), which has at least one fourth tool unit ( 54d ) with a fourth tool carrier device ( 56d ), the carriages ( 28a ; 28b ; 28c ; 28d ) in each case in a first direction (X) are displaceable and the respective tool carrier device ( 56a ; 56b ; 56c ; 56d ) relative to the respective carriage ( 28a ; 28b ; 28c ; 28d ) in a second direction (Y) transversely to the first direction (X) is displaceable, a first drive means ( 38 ), which the first slide ( 28a ) and the third carriage ( 28c ) and which causes a displacement movement in the first direction (X), and a second drive device ( 40 ), which the second carriage ( 28b ) and the fourth slide ( 28d ) and which effects a displacement movement in the first direction (X). Machine tool according to claim 1, characterized in that a displacement movement of the first carriage ( 28a ) and the third carriage ( 28c ) via the first drive device ( 38 ) is coupled and / or synchronized. Machine tool according to claim 1 or 2, characterized in that a displacement movement of the second carriage ( 28b ) and the fourth carriage ( 28d ) via the second drive device ( 40 ) is coupled and / or synchronized. Machine tool according to claim 3, characterized in that a distance in the first direction (X) between the first carriage ( 28a ) and the third carriage ( 28c ) is constant regardless of its displacement position and / or a distance in the first direction (X) between the second carriage ( 28b ) and the fourth slide ( 28d ) is constant regardless of their shift position. Machine tool according to one of the preceding claims, characterized in that a distance in the first direction (X) between the first carriage ( 28a ) and the second carriage ( 28b ) via the first drive device ( 38 ) is adjustable and / or a distance in the first direction (X) between the third carriage ( 28c ) and the fourth slide ( 28d ) via the second drive device ( 40 ) is adjustable. Machine tool according to one of the preceding claims, characterized in that the first drive device ( 38 ) and / or the second drive device ( 40 ) is a ball screw device, wherein in particular the first carriage ( 28a ) and the third slide ( 28c ) to a same first threaded spindle device ( 42 ) of the first drive device ( 38 ) and / or the second carriage ( 28b ) and the fourth slide ( 28d ) to a same second threaded spindle device ( 48 ) of the second drive device ( 40 ) are coupled. Machine tool according to one of the preceding claims, characterized in that the first carriage ( 28a ) and the second carriage ( 28b ) a common web guide ( 30 ), which in particular on the machine frame ( 14 ) is held. Machine tool according to one of the preceding claims, characterized in that the third carriage ( 28c ) and the fourth slide ( 28d ) a common web guide ( 30 ), which in particular on the machine frame ( 14 ) is held. Machine tool according to one of the preceding claims, characterized in that the first carriage ( 28a ), the second slide ( 28b ), the third slide ( 28c ) and the fourth slide ( 28d ) a common web guide ( 30 ), which in particular on the machine frame ( 14 ) is held. Machine tool according to one of the preceding claims, characterized in that the first direction (X) with respect to the direction of gravity (g) is horizontal direction. Machine tool according to one of the preceding claims, characterized in that the second direction (Y) with respect to the direction of gravity (g) vertical direction. Machine tool according to one of the preceding claims, characterized by a first dynamic movement axis for the displacement movement of the first carriage ( 28a ) and the third carriage ( 28c ) in the first direction (X), a second dynamic movement axis for the displacement movement of the second carriage ( 28b ) and the fourth carriage ( 28d ) in the first direction (X), a third dynamic movement axis for the displacement movement of the first tool carrier device ( 56a ) in the second direction (Y), a fourth dynamic movement axis for the displacement movement of the second tool carrier device ( 56b ) in the second direction (Y), a fifth dynamic movement axis for the displacement movement of the third tool carrier device ( 56c ) in the second direction (Y), and a sixth dynamic movement axis for the displacement movement of the fourth tool carrier device (FIG. 56d ) in the second direction (Y). Machine tool according to one of the preceding claims, characterized in that the first sledge ( 28a ) and the second carriage ( 28b ), the second carriage ( 28b ) and the third slide ( 28c ), and the third carriage ( 28c ) and the fourth slide ( 28d ) are next to each other. Machine tool according to one of the preceding claims, characterized in that the workpiece carrier device ( 16 ) at least one workpiece carrier ( 18a ; 18b ) which is displaceable in a direction (Z) which is transverse to the first direction (X) and transverse to the second direction (Y), and / or which is rotatable and / or pivotable. Machine tool according to one of the preceding claims, characterized in that a tool unit ( 54a ; 54b ; 54c ; 54d ) a lifting drive device ( 64 ). Machine tool according to one of the preceding claims, characterized in that a tool unit ( 54a ; 54b ; 54c ; 54d ) a tool drive device ( 70 ) comprises for driving a tool ( 72 ) in particular in a rotational movement. Machine tool according to one of the preceding claims, characterized in that a tool unit ( 54a ; 54b ; 54c ; 54d ) a tool adjustment device ( 71 ), by which a tool or one or more elements of a tool transverse to a tool axis are deliverable to a workpiece, and / or a rotary distribution device ( 77 ) for fluid. Machine tool according to one of the preceding claims, characterized by at least one tool magazine ( 74a ; 74b ; 124a ; 124b ), which is movable and in particular pivotable and / or displaceable on the machine bed ( 12 ) or machine frame ( 14 ) is arranged and a plurality of receiving places ( 82 ; 132 ), wherein in a first position the at least one tool magazine ( 74a ; 74b ; 124a ; 124b ) is positioned so that a tool exchange on one or more tool units ( 54a ; 54b ; 54c ; 54d ) is feasible, and in a second position, the at least one tool magazine ( 74a ; 74b ; 124a ; 124b ) lies outside of a processing area for workpieces, wherein in particular a pivot axis ( 78 ) is oriented parallel to the second direction or a displacement direction ( 128 ) is oriented at least approximately transversely to the first direction (X). Machine tool according to one of the preceding claims, characterized in that the at least one tool unit ( 54a ; 54b ; 54c ; 54d ) is designed as a honing tool unit. Machine tool according to one of the preceding claims, characterized by a design as a machining center ( 10 ). Machine tool according to one of the preceding claims, characterized in that a tool axis and in particular rotation axis ( 68 ) a tool carrier device ( 56a ; 56b ; 56c ; 56d ) transversely and in particular perpendicular to the machine bed ( 12 ) is oriented.

Images