WO2018083333A1

WO2018083333A1 - Machining center for the machining of workpieces

Info

Publication number: WO2018083333A1
Application number: PCT/EP2017/078442
Authority: WO
Inventors: Peter Sauter; Hans-Dieter Braun
Original assignee: Mikron Gmbh Rottweil
Priority date: 2016-11-07
Filing date: 2017-11-07
Publication date: 2018-05-11
Also published as: DE102016121200A1; EP3535089A1

Abstract

The present invention relates to a machining center (30) for the machining of workpieces (38), comprising at least one machining area (32), in which a machine tool (10) for the metal-cutting machining of workpieces (38), said tool comprising at least one work spindle, is disposed, at least one set-up area (40), in which a workpiece (38) to be machined can be clamped into at least one clamping system (37) with the aid of a clamping means (28) in order to be machined and a machined workpiece (38) can be removed from the clamping system (37), and a displacement path (36), which extends linearly from the set-up area (40) into the machining area (32) and along which the at least one clamping system (37) can be moved between the set-up area (40) and the machining area (32), wherein the workpiece (38) to be machined can be moved, during machining, along the displacement path (36) relative to the work spindle by means of the at least one clamping system (37).

Description

Machining center for machining workpieces

The present invention relates to a machining center for machining workpieces.

When machining workpieces, a relative movement between the workpieces and the tool typically takes place. Depending on the type of processing the workpiece can ge ^¬ genüber the tool in rotation and / or translatory motion gen. In the machining, the tool is used in ^¬ game as a drill or a milling head, usually in egg ^¬ ne rotatable work spindle and thus brought the workpiece with the tool in contact, that the desired loading ^¬ processing can be realized. The relative movements which the workpiece can perform with respect to the tool are related to the three spatial axes. One translational and rotational movement can be performed per axis. Instead of machining, a laser may alternatively be used to perform, for example, build-up welding. For this purpose, the work spindle of the laser he sets.

The more complex the workpieces, the multiaxial factory ^¬ piece processing must be performed. Accordingly, the complexity of the machine tool increases accordingly. In order to provide the movement along the three spatial axes, several Bau ^{¬ ways} have emerged. One of these designs is the portal ^¬ or gantry. Such machine tools have ^¬ typi cally two mutually parallel side walls, a first pair of guide rails is arranged on the upper surfaces, along which a cross member can be moved. At the forward facing side of the cross member, a holder for the work spindle is attached. These holding tion can be moved along the cross member perpendicular to the first Füh ^¬ approximately rail pair. In addition, the cross ^¬ carrier, a second pair of guide rails is secured, so that the holder can still be along a third axis which is perpendicular to the first guide rail and perpendicular to the cross ^¬ carrier, additionally moved. Machine tools in the portal or gantry design usually allow a three-axis machining, with a four-axis or five-axis machining is possible if the workpiece table is designed accordingly. A machine tool in the portal or gantry design is known from DE 44 41 253 AI and DE 42 12 175 AI.

DE 199 04 860 AI discloses a machine tool, which is designed essentially in portal or Gantrybauweise, in which the work spindle is additionally pivotable about a pivot axis extending perpendicular to its own axis.

In addition to the gantry or gantry design, other designs are also known with which the work spindle can be moved along the three spatial axes. Examples are the cross table and the traveling column construction.

In order to be able to machine a workpiece by means of a machine tool in portal or gantry design, the workpiece is clamped in a clamping system and fixedly positioned on a workpiece ^¬ table. However, the workpiece table is accessible only from the front, which directly strikes upon consideration of the abovementioned publications, because the side access of the side walls and the rear access from the cross member locks ver ^¬ be. If the clamping be automated, for example, a gripping robot must be positioned directly in front of the Werkzeugmaschi ^¬ ne. This results in the disadvantage that the gripping robot obstructs both the accessibility and the view of the workpiece and the tool. DE 10 2013 012 633 A1 shows a machine tool to which this situation occurs. In DE 10 2008 017 719 AI access to the machine tool by a pallet changer is ver ^¬ locks.

DE 44 30 389 Al shows a machine tool in which the workpieces to be machined supplied to the processing space on a workpiece feed, there gripped by the chuck of the Ar ^¬ beitsspindel and in a processing space machining ^¬ tet. The machined workpieces are then deposited on a workpiece removal unit. The view of the work ^¬ piece in the processing room and the access to the processing room are thereby improved. However, the Werkzeugma ^¬ machine is relatively inflexible, since only workpieces can be edited, which can be clamped with the chuck of the work spindle. A similar machine tool also shows the DE 198 15 858 AI.

To address this disadvantage are machining centers be ^¬ known which voneinan ^¬ separate the processing space and the Rüstraum. In the processing room, the machining of the workpiece takes place while in the scrub space, the workpiece can be clamped in a clamping system and removed from it. The workpiece clamped in the framework must be transported by means of a trans ^¬ port device to the processing room. Such a machining center, in which the Rüstraum and Bearbeitungsräum separated is AI disclosed in DE 10 2010 023 276 wherein the TransportVor ^¬ direction above the processing space and the Rüstraums ver ^¬ running. Consequently, the workpieces are introduced from above into the machining ^¬ processing space and the Rüstraum and of these entnom- men. This embodiment is relatively space consuming. For ^¬ the construction of the workpiece ^gripper are relatively auf ^¬ agile and the transfer accuracy is relatively inaccurate.

It is an object of one embodiment of the present invention to provide a machining center which overcomes the above drawbacks and, in particular, does not restrict the view of and access to the machining area for an operator. Further, the structure of the machining center is intended for use on all levels of automation and be ^¬ yet easy to implement as well as to enable efficient and precise manufacture of the workpieces.

This object is achieved with the features specified in claim 1. Advantageous embodiments are subject of the subclaims ^¬ Un.

An embodiment of the invention relates to a machining center for machining workpieces, comprising at least one Bearbeitungsräum in which a machine tool for particular cutting machining of workpieces with Minim ^¬ least one work spindle is disposed at least one Rüstraum in which a workpiece to be machined in Minim is removable ^¬ least a clamping system by means of a clamping means for machining clamped and a machined workpiece from the clamping system, and a linearly extending from Rüstraum in the machining ^¬ processing space displacement path along which the min ^¬ least a tensioning system between the Rüstraum and Bear ^¬ arranged beitungsraum displaceably is, the trajectory forms a front end of the machining center and limits the scrub space and the Bearbeitungsräum forward or the track at least the Bearbeitungsräum forward ^¬ limits, the workpiece to be machined during de r Bear- Processing by means of the at least one clamping system on the Ver ^¬ sliding track is displaceable relative to the work spindle.

In the following, a working space is to be understood as that space in which a workpiece is machined and, in particular, undergoes a deformation. Usually, the processing space is defined by the machine tool.

Under a Rüstraum enige the space is to be understood, in which prepared the workpiece for machining and special into ^¬ by means of the clamping means in the clamping system is ^¬ is tensioned. Furthermore, the modified work ^¬ piece is to be removed from the clamping system in Rüsträum.

In the work spindle of the machine tool, for example, a milling head or a drill can be used zt, which are rotated by the work spindle about its own axis.

A core idea of the present invention to use the displacement ^¬ levi- tation not only for moving the workpiece relative to the work ^¬ generating during processing, but also for transporting the workpiece between the processing space and the Rüstraum. It is advisable to arrange the Rüstraum and the Bear ^¬ beitungsraum side by side. The term "currencies ^¬ rend processing" is to be understood that the work ^¬ piece occurs with the tool in a form changing interaction, and in particular in contact with the tool or the workpiece is in time between two time periods in which the tool in a shape-changing interactions ^¬ effect and in particular in contact with the workpiece is located. in the above-mentioned machining centers the clamping ^¬ system or the workpiece itself must pass in any way during transport from Rüstraum into the working space advertising the, for example by means of a workpiece gripper. One of the ^¬-like transfer is not necessary in this case. This once again clamped in the clamping system Rüstraum in the workpiece can be transported directly along the displacement path from the Rüstraum in the Ar ^¬ beitsraum and there without a handover directly be ^¬ be working. Since the movement of the workpiece along the displacement direction is performed by the clamping system, it is not necessary to execute the machine tool so that the work spindle can be moved along this direction. Consequently, the machine tool can be made simpler and thus cheaper ^¬ cheaper. It lends itself to arrange the Spannsys ^¬ tem on a table assembly, which is slidably mounted in the displacement track. The clamping system can be lös ^¬ bar secured to the table assembly in order to allow an off ^¬ exchange.

Characterized in that the displacement path forms a front end of the Bear ^¬ beitungszentrums, the essential components of the machining center and in particular the machine tool and the components used for setting up are arranged on the same side of the displacement path. The front end can run on the side at which the work spindle is attached to the Querträ ^¬ ger. Here, the term "front end" is to be understood that components such as the machine bed or the clamping system projecting forwardly beyond the displacement path Kgs ^¬ NEN, but in a negligible extent. The Be ^¬ arbeitungsräum and Rüsträum are seen from the sliding track of arranged side by side. Consequently, both the Bearbeitungsräum and the Rüstraum over the front end by the operator are freely accessible. also, it can move along the front end, without the components of the machining ^¬ processing center block the path. the operator has both the Rüstraum and the processing area and can intervene directly in this, if necessary. The operation of the machining center and the Kontrollier ^¬ bility of the individual steps are significantly increased. To accessibility for Rüsträum for the operator to raised stabili ^¬ hen, the Rüstraum can learn about the front end hinausste ^¬ hen. As a result, the loading and unloading can be simplified.

According to a further embodiment, the sliding track ^¬ runs horizontally and is arranged in a machine bed of the machine tool. A horizontally extending Ver ^¬ slideway is often referred to as the X axis. Since the machine tool in any case has a machine bed, it is not necessary to provide an additional support for the sliding ^¬ path. The integrated storage in the machine base allows the processing center auszufüh ^¬ ren as a unit, which in particular the installation and alignment of the various components of the machining center club ^¬ kindled.

In a further developed embodiment, the machining ^¬ machining center may comprise a manipulator robot, with which a workpiece to be machined on the at least one clamping system for processing placeable and a machined workpiece from the at least one clamping system is removable. The gripper robot is designed so that it can reach into the rumble room. The spatial separation between the Rüstraum and Bearbeitungsräum makes it so set up the robot gripper that it does not block the access to and the view of the Bearbeitungsräum for ei ^¬ nen operator. In addition, it is possible anzuord ^¬ nen, so that the operator from the opposite side has the gripper robot on one side of the sliding track to ^¬ transition to Rüstraum. The operator and the robot can simultaneously move into the scavenging space and consequently work in parallel. BEITEN. Insofar as it enables the extending between the Rüstraum and the processing space displacement path to use a gripping ^¬ robot so that an operator is not disturbed by the gripper robot. In this respect, the degree of automation can be increased without the ability of the operator to intervene if necessary in the handling and set-up process, einzuschrän ^¬ ken.

Instead of gripping robots, for example, linear handling systems may be used, which are designed so that workpieces placed on the clamping system and can be ent ^¬ taken from him.

In a further developed embodiment in Rüsträum a feed and extraction means for extracting the least can be Minim ^¬ a locking system of the movement track and Zufüh ^¬ ren the at least one clamping system to the displacement path is arranged ^¬. In this embodiment, it makes sense to arrange between the table assembly and the clamping system a pallet, which can be quickly connected to the table assembly and released from it, for example, via a standardized interface ^¬ using the feeding and removal device.

The machining center comprises at least two ^clamping systems. In the clamping system, which is not connected to the Tischbau ^¬ group, a workpiece to be machined can be ^¬ tense, while another workpiece, which is clamped in a connected to the table assembly clamping system, can be edited. Therefore it is possible a main zeitpa ^¬ ralleles setup, so that the machining center can be simultaneously processed and prepared. The processing tung Center can thus better utilized and efficien ^¬ ter be operated.

In another embodiment, the feed and Ent ^¬ acquisition means as a lifting and rotating device can be ausgestal ^¬ tet. The lifting and rotating device may have a rotatable about its center carrier beam having at its two free ends each having a gripping portion, with which it can detect a respective pallet. The support beam can be moved towards the pallet with a rotational movement so that the gripping portion can grip the pallet. With a rotation ^¬ movement, for example, 180 ⁰ , the pallet can be removed from the table assembly and another clamping system together with the pallet placed on the table assembly. As a result, a change of the different clamping ^¬ systems is realized in a simple manner. This embodiment of the feeding and unloading ^¬ takeover device can also be called a pallet changer.

According to a further embodiment, the supply and removal device comprises a further displacement track. The further displacement track is designed so that the Spannsys ^¬ tem used by the sliding track to the other displacement track and vice versa can be transferred, so that the further Verschie ^¬ bebahn has substantially the same function as the lifting and Dre ^¬ heinrichtung. As described, the lifting and Dre ^¬ heinrichtung is rotated in operation by 180 ⁰ , so that it covers a ^¬ accordingly large area that may not be entered by the operator. The machining center therefore requires a correspondingly large area. In contrast, the additional displacement track requires no additional area, so that the machining center can be made more compact. According to a further embodiment, the further displacement track projects beyond the front end of the machining center. This embodiment is not in contradiction to the fact that the displacement path forms the front end of the loading ^¬ processing center. In this embodiment, the displacement path limits at least the processing space to the front. The advantages discussed in this regard are retained in this embodiment as well. Because the further displacement ^¬ ^¬ levi- tation Center also extends over the front end of the processing, better access to the further displacement path for an operator, as it also has side access to further displacement path. As a result, the laying and removal of the workpieces are simplified. In addition, two operators can hang up and remove the workpieces without hindering each other.

A further embodiment embodiment is characterized in that a workpiece magazine is disposed between the gripper robot and feeding and unloading ^¬ taker. In ^¬ play, the workpiece storage, a circulating belt umfas ^¬ sen. If the processing time is longer than the setup time, an operator may clamp during working hours a number of plant ^¬ pieces and carry out the work memory while the processing can be made automatically by the machine tool after the Ar ^¬ beitszeit the operator. Even thus the machining center can be very effi ient for ^¬ be exaggerated.

According to another embodiment, the work ^¬ piece memory on receiving means for receiving clamping systems with different clamping means. In this embodiment, a flying change of the clamping systems can be implemented very effectively. The workpieces that the operator places in the factory Piece memory supplies, can be clamped with different ausgestalte ^¬ th clamping means in the clamping system. Difference ^¬ Liche clamping means are then used zt when editing differently shaped workpieces or equally shaped workpieces to be processed in different ways. The Fle ^¬ bility of the processing center is therefore significantly increased.

A further embodiment is characterized ^¬ net, that the workpiece storage includes a turntable. Unlike a circulating belt of the turntable is space-saving and can also driven in a technically simpler manner ^¬ to.

In a further embodiment, the workpiece storage and the supply and removal device may be mounted on the machine bed of the machine tool. Although it is generally pos ^¬ lich to store the workpiece storage and the supply and Entnahmeein ^¬ direction separately. In this case, the work piece ^¬ memory need and the supply and removal device zueinan- be of and aligned with respect to the sliding track to ensure a sufficient handover accuracy. Depending on how the foundation is carried out in the vicinity of the machining center, it can be difficult to provide the Überga ^¬ begenauigkeit. However, if the Werkstückspei- more and stored the feed and removal device on the Maschi ^¬ nenbett the machine tool, it can already be appropriately aligned at the factory and delivered. The Be ^¬ processing center can thus go into operation after installation without on ^¬ agile alignment.

In another embodiment, the at least one clamping system with a slidable in the sliding track gela ^¬ siege table assembly connectable, wherein said table assembly egg ne pivoting device for pivoting the workpieces includes. The pivotability of the clamping system may be used during the machining ^¬ processing of the workpiece to the workpiece rela tively ^¬ to move to the tool, so that machining operations are made possible, which are not as such rea ^¬ lisierbar with the machine tool. In other words this way a Bear ^¬ processing may be facilitated by one or more such zusät Liehe axes without having to rebuild the machine tool. It must be retrofitted only the appropriately trained table assembly, including a significantly lower compared to a conversion of Werkzeugma ^¬ machine effort is necessary. In addition, the possibility is opened, for example, the workpieces verti ^¬ kal oriented clamp, but oriented horizontally to edit. Includes the workpiece storage a turntable the workpieces that usually only vertically directed ^¬ can be fed. A processing in a horizontal orientation of the workpieces is particularly appropriate when the workpieces are relatively long and have to be ^¬ clamped in on both sides in order to reduce vibrations and deflections during processing. The pivoting device therefore increases the possibilities of machining the workpieces. The pivot ^¬ device can be designed so that the table assembly rotary table, for example, as a rotary table, swivel rotary table, Doppelschwenk- is formed as a bridge or as intermediate Drehspit centering chuck.

In another embodiment, the machine tool has a first side wall and a second side wall, a first guide rail pair is arranged on wel ^¬ chen, the perpendicular extending to the displacement path and to which a Querträ ^¬ ger is slidably disposed, on which a holder for the Work spindle is attached. In this case, the first and the second side wall also run perpendicularly or at least substantially. lent perpendicular to the track. In this embodiment, the work spindle can be verscho ^¬ ben in a manner in the y direction, as ge ^¬ uses in the portal or gantry design. This construction is characterized by a favorable production and high stability.

A developed embodiment is characterized in that a second guide rail pair is arranged on the cross member, which runs perpendicular to the displacement track and perpendicular to the first pair of guide rails and by means of which the holding ^¬ tion for the work spindles is slidably mounted. In this embodiment, the work spindle may be displaced in a z-direction in a manner used in the gantry or gantry design. As already mentioned, this design is characterized by a favorable production and high stability.

In machine tools in the classical portal or gantry ^¬ construction, the mounting of the work spindles is also mounted slidably in the x direction on the transverse support. The width of the working space is limited by the distance between the two sides ^¬ walls, so that workpieces which exceed this width over ^¬, can not be processed. However, if the ^{distance between} the side walls is increased, then the cross member bends more during machining and vibrates more, so that its guiding behavior deteriorates. Characterized in that the workpiece during machining along the displacement ^¬ track in the x-direction is displaced, the support of the Ar ^¬ beitsspindeln must be attached to the cross ^¬ carrier no longer be moved in the x direction. Consequently, the distance of the two side walls can be reduced approximately to the width of the holder of the Ar ^¬ spindles, so that a very good Füh- can be provided. In addition, very wide workpieces can be processed.

Exemplary embodiments of the invention are explained in the fol ^¬ constricting detail with reference to the accompanying drawings. Show it

Figure 1 is a machine tool in the classic portal or

gantry,

2 shows a first embodiment of an inventive ^¬ SEN machining center,

Figure 3 is an isolated view of a sliding track used in the first exporting approximately ^¬ for example based on a principle front view,

4 shows a second embodiment of an inventive ^¬ SEN machining center, in each case based on a prin ^¬ zipiellen plan view,

Figure 5 is an isolated view of a sliding track used in the second exporting approximately ^¬ for example based on a principle front view,

6 shows a third embodiment of an inventive ^¬ SEN machining center, using a principal top view,

7 shows a fourth embodiment of the invention ^shown SEN machining center, using a principal top view, 8 shows a fifth embodiment of an inventive ^¬ SEN machining center, also based on a principle top view. 1 shows a known from the prior art work ^¬ machine tool 1 OP in the classic portal or Gantrybauwei- se based on a basic plan view shown. The factory ^¬ generating machine OP 1 includes a first side wall 12 and a second side wall 14, on the surfaces of a first pair of rails leadership is arranged approximately sixteenth A cross member 18 is slidably supported along the first pair of guide rails 16. With reference to the ^{coordinate system} shown in FIG. 1, the cross member 18 can consequently be displaced in the y direction along the first guide ^rail pair 16.

At the forwardly facing side of the cross member 18, a second pair of guide rails 20 is arranged, on which a holder 22 for two Arbeitsspindein 24 is attached. The second guide rail pair 20 is configured so that the holder 22 along the x and the plane perpendicular to the drawing ^¬ z-direction is movable. The purpose notwen ^¬-ended drive means are not shown separately. On ^¬ reason this design, the two work spindles 24 can along the x-, y- and z-axis are linearly. In addition, the work spindles 24 can be rotated about their own axes which are in the z-direction.

Furthermore, the machine tool 1 OP a stationary workpiece table 26, the clamping means 28 includes, with which in this case two workpieces 38 can be clamped in the workpiece table 26. For machining the workpieces 38, an unillustrated tool, for example a drill or a milling head, is inserted into the work spindle 24 spans, the work spindles 24 set in rotation and so re ^¬ relative to the workpieces 38 moves that they are machined in the ge ^¬ desired manner. In particular, due to the design of the attachment of Hal ^¬ sion 22 on the cross member 18 have machine tools 1 OP in the classic portal or gantry design, the characteristic that they are well accessible ^¬ only from one side for an operator, namely from the side to which the holder 22 is attached to the cross member 22 on the cross member 18. This Be ^¬ te intended to be defined as the front side 10 of the machine tool. The workpiece table 26 is arranged on this side.

FIG. 2 likewise shows a first exemplary embodiment of a machining center 30i according to the invention on the basis of a basic plan view. The machining center 30i has a Bearbeitungsräum 32, in which a work ^¬ imaging machine 10 is arranged, which largely comprises a ähnli ^¬ chen construction as the machine tool 1 OP shown in FIG. 1 The machining center 30i comprises a machine ^¬ bed 34, is mounted in which a sliding track 36 that extends between a Rüsträum 40 and the Bearbeitungsräum 32 along the X-axis. On the sliding track 36, a table subassembly 35 is slidably disposed, on which a clamping system 37 is fixed, which clamping means 28 has on ^¬ , with which a workpiece 38 in the clamping system 37 can be ^¬ clamped. The dashed line representation of the right table assembly 35 and its associated components indicates a second position of the single table assembly 35 of the machining center 30i.

The displacement track 36 is designed such that the workpiece 38 during processing, in particular at contact of the in the work spindle 24 clamped tool can be moved relative to the tool with which to bear ^¬ beitenden workpiece 38, due to movement of Tischbau ^¬ group 35 and the clamping system 37 along the X-axis. Consequently, it is not necessary to fix the holder 22 of the work spindle 24 to the cross member 18 in such a way that it can be displaced along the X axis. The holder 22 and consequently the work spindle 24 are therefore movable only along the y- and z-axes, wherein the machine tool 10 differs from the machine tool 10 shown in FIG.

The machining center 30i further comprises a gripping robot 39, which reach into the Rüsträum 40 and consequently hang up workpieces 38 to the clamping system 37 and machined workpieces 38 can be seen from the clamping system 37.

The clamping means 28 may be configured so is that they clamp the workpiece 38 au tomatically ^¬ after hanging up on the tensioning system 37 and automatically freige ^¬ ben before removal.

The number of processing spaces 32 and the Rüsträume 40 is not limited in principle. For example, two or meh ^¬ eral Rüsträume 40 may be provided, in each of which a

Gripping robot 39 can grab. This can be advantageous if the workpieces 38 to be machined, although with the same

Machine tool 10 can be processed, but are very differently shaped ^¬ so that they can not be moved by the same gripping robot 39 or only with great effort. Also, two or more processing spaces 32 may be provided, which is advantageous if the workpieces 38 are to be processed with un ^¬ ferent tools. A case ^¬ play for this may be that the workpieces 38 first overall welds and then have to be milled. A tool change can then be omitted.

For processing a workpiece 38, the gripper robot 39 removes this workpiece 38 from a shelf, not shown, and places it on the clamping system 37, in which it is clamped with the clamping ^¬ means 28. Since the machine tool 10 has two work spindles 24, the clamping system 37 is out ^¬ staltet that two workpieces 38 may be clamped so that the two clamped workpieces 38 can be simultaneously processed with the two work spindles 24, wherein the number of work spindles 24 and at the same time bear ^¬ beitbaren workpieces 38 is not limited to two. From tech ^¬ nical point of view, up to four work spindles in a machine tool 10 can control, so that up to four Werkstü ^¬ bridge can be brought into contact with the tools simultaneously 38th After the workpieces have been clamped in the clamping system 37 38, the clamping system 37 is moved together with the table assembly 35 with unillustrated driving means along the sliding track 36 in the x direction in the machining space ^¬ tung 32nd Now the work spindles are placed in ro tation ^¬ 24 and so moved that they will contact and in contact with the workpieces 38 bear this ^¬ BEITEN in the desired manner. In the event that it is necessary to move the workpieces 38 during processing in the x-direction, the clamping system 37 is moved together with the table assembly 35 according to the sliding track 36.

Once processing is completed, the Tischbau- group 35 with the clamping system 37 along the sliding track 36 from the processing space 32 in the Rüsträum 40 in the x direction ver ^¬ pushed where the clamping means 28, the processed workpieces 38 release, so that the gripping robot 39, the machined works ^¬ pieces 38 can be seen from the clamping system 37.

In Figure 3, the sliding track 36 is shown isolated on the basis of a principal front view. It can be seen that the index table assembly is slidably gela ^¬ Gert in the sliding track 36 35th The clamping system 37 is arranged on the table subassembly 35 at ^¬ and fastened in a manner not shown with the table ^¬ assembly 35. On the clamping system 37, the workpieces 38 are clamped with the clamping means 28.

4 shows a second embodiment of the Invention ^¬ modern machining center O2 3 is shown with reference to a principal plan view which is substantially similar in structure to the first embodiment. However, the processing center Bear ^¬ 3 O2 according to the second embodiment includes a feeding and withdrawal means 42, with which clamping ^¬ system 37 removed from a sliding track 36 and this as ^¬ can be supplied.

As mentioned in Figure 3, the table assembly is mounted ver ^¬ 35 displaceable in the displacement path 36th From Figure 5 it can be seen that between the table assembly 35 and the clamping system 37, a pallet 41 is arranged, which is fixedly connected to the clamping system 37 and, for example, via standardized interfaces releasably secured to the table assembly 35. Consequently, it is possible to connect differently formed clamping ^¬ systems 37 on the pallet 41 with the table assembly 35 and to solve again.

The machining center 3O2 comprises at least two pallets 41, but only one table subassembly 35. The clamping system 37, which does not have the pallet 41 with the table subassembly 35 is connected, a workpiece to be machined 38 can be clamped using the gripping robot 39, while another workpiece 38, which is clamped in a connected via the pallet 41 with the table assembly 35 clamping system 37, can be edited. Consequently, it is possible to set it up at the same time, so that machining center 302 can be processed and equipped at the same time.

The feed ^™ and removal device 42 is provided between the Ver ~ slideway 36 and the gripper robot 39 in Rüstraum 40 angeord ^¬ net. The feeding and removal device 42 is shown in dargestell ^¬ th embodiment as a lifting and rotating device 44 which comprises a support beam 46 which is rotatably mounted about a centrally disposed, extending in the z-direction of rotation. At its free ends, the support beam ^¬ bar 46 each have a gripping portion, not shown, with which the pallet 41 detected, lifted and removed from the table assembly 35, rotated 180 ° and abge ^¬ again can be. Therefore, the feed and removal device 42 may also be referred to as a pallet changer. The Pa ^¬ lettering 41 is therefore only required if the feed and removal means 42 is eingeset zt. In ge ^¬ shown in Figure 2 first embodiment 30i no Pa ^¬ lettering 41 thus is provided.

6 shows a third embodiment of the Invention ^¬ modern machining center 3 O3 is also shown with reference to a prince i- piellen plan view. Compared to the example illustrated in Figure 4 the second embodiment is führ- between the feed and removal means 42 and the gripper robot 39 to additionally ^¬ a workpiece memory 48 is arranged, which comprises a about the Z-axis rotatably mounted turntable 50th The USAGE ^¬-making of the work memory 48 allows the machining center 3O3 with more than two clamping systems 37 ben ber ^¬ Ben. In this embodiment, the workpiece memory 48 has five receiving means 52 for receiving clamping systems 37 with different clamping means 28. The receiving means 52 are shown in Figure 6 the same, since the Pa ^{¬ used} letten 41 are identical. However, the pallets 41 can be configured under ^¬ differently, so that the means 52 must be designed accordingly. As already he imagines ^¬ previously, the pallets 41 and the table assembly 35 have standardized interfaces, so that different decor with dark ^¬ preparing pallets 41 problems with the table assembly 35 buildin ^¬ Strengthens and this again can be removed. As a result, differently shaped workpieces 38 can be ^temporarily stored in the workpiece storage 48, which have to be clamped differently. In addition, the same shape Werkstü ^¬ blocks 38 to be processed differently, according to Zvi ^¬ temporarily stored.

The gripper robot 39 can clamp into a arranged on a pallet 41 clamping system 37 to be processed workpieces 38, while a ready-fed clamping system 37 is ready in the workpiece ^¬ memory 48 to removed from the feed and Entnahmeein ^¬ direction 42 by gripping its pallet 41 and with the table assembly 35 to be connected.

The table assembly 35 may be rigid. However, 35 in the example shown in Figure 6 the third embodiment of the machining ^¬ tung center of 30.3, the table assembly comprises a pivoting device 54 with which clamped 38 aligned comparable vertically the workpieces, but can be processed horizontally aligned, which they pivoted in particular about the Y axis become . In particular, when the Werkstückspei ^¬ cher 48 a rotatably mounted about the Z axis turntable 50th includes, it is advisable to supply the workpieces 38 aligned vertically. A processing in the horizontal direction of the workpieces from ^¬ 38 itself in particular when the workpieces 38 are relatively long and have to be clamped einge- both sides in order to reduce vibrations and deflections during processing. The pivoting device 54 therefore increases the possibilities of machining the workpieces 38.

The pivoting device 54 of the table assembly can also be used during machining to pivot the workpiece 38 re ^¬ relative to the tool, so that it editions ^{¬ he} made possible, which are not feasible with the machine tool 10. Depending on how many processing axes are needed, the pivoting device 54 may be designed so that the table assembly 35 is formed, for example, as a round ^¬ table, swivel rotary table, double swivel rotary table, as a bridge or as intermediate Drehspit zen clamping table.

In all embodiments shown, the sliding track 36 forms a front end 56, which means that all walls ^¬ ren components of the machining center 30 are arranged on the same Be ^¬ te the displacement path 36th As already mentioned, the front end 56 should run on the side on which the holder 22 is arranged on the cross member 18. The sliding track 36 also delimits both the Bearbeitungsräum 32 and the Rüstraum 40 forward. It follows that seen from the front end 56 of the Bearbeitungsräum 32 and the Rüsträum 40 are arranged side by side. In the exemplary embodiments, having the workpiece memory 48, the gripper robot 39 is viewed from the sliding track 36 from behind the workpiece 48. The workpiece storage memory 48 is accessible from the side for egg ^¬ NEN operator. On the basis of this order, the operator ^¬ between the Rüstraum 40 and the loading can processing room 32 on the machine bed 34, to go along to have to deal with any obstacles that does not rule out that, for example, the machine bed or table assembly can protrude beyond the front end 56, but in ver ^~ nachlässigendem extent. All the major sections of the machining ^¬ processing center 30 are easily accessible and visible for him.

7 shows a fourth embodiment of the Invention ^¬ modern machining center 304 is also shown with reference to a Prinzi ^¬ piellen plan view. In contrast to the second and drit ^¬ th embodiment, the feed and Entnahmeein ^¬ device 42 includes in the fourth embodiment of the machining center 304 no lifting and rotating device 44, but an additional displacement path 47. The further displacement path 47 ver ^¬ runs perpendicular to the displacement path 36 and is slightly beyond the front end 52. As in the third exemplary embodiment, the game processing in the fourth center 3Ü4 exporting ^¬ approximately example includes the gripping robots 39, wherein between the gripper robot 39 and the supply and removal means 42 of the work piece ^¬ memory is arranged 48th

The basic mode of operation of the feeding and Entnahmeein ^¬ direction 42 of the machining center 3Ü4 according to the fourth embodiment corresponds to the enigen the feed and Entnah- meeinrichtung 42 which has been described for the machining center 30s of the third embodiment. The Ver ^¬ slideway 36 and the further displacement path 47 are designed from ^¬, that a handover of the tensioning system used 37 of the sliding track 36 for further displacement path 47 and vice versa is possible. Consequently, a to be processed

Workpiece 38 are either placed on the tensioning system 37 and clamped by an operator on the region of the further displacement path 47 projecting beyond the front end 56. From There, the workpiece 38 to be machined is transferred to the sliding ^¬ track 36 and transported to the processing space 32.

Furthermore, the further displacement path 47 is able to perform a handoff of the tensioning system 37 used by the other Ver ^¬ slideway 47 to the workpiece storage 4 8 and vice versa durchzu ^¬. Consequently, the to which contained in the workpiece storage 4 8 tensioning system 37 launched by the gripper robot 3 9 workpiece 38 on the further displacement path 47 to the displacement track 3 6 and from there into the processing space 32 may be transported ^¬ advantage. After processing, the machined workpiece 38 can be correspondingly transported back into the Rüstraum 40 and removed from there either by the operator or by the gripper robot 3 9 from the clamping system 37.

Characterized in that the further displacement track 47 projects beyond the front end 56, the laying on and the Entneh ^¬ men facilitated by the clamping system 37 for the operator, since he also has lateral access to the further displacement track 47.

8 shows a fifth embodiment of the machining center according to Inventive ^¬ s 30 is also shown with reference to a prince i- piellen plan view. As in the fourth execution ^¬ example, the machining center 30 s the further displacement path 47, which, however, does not protrude beyond the front end 5 6 but flush with the sliding track 3 6 from ^¬ closes. In addition, no workpiece storage 38 is provided ^¬ see, but the further displacement track 47 extends so that the clamping system 37 used is the gripping robot 3 9 accessible. Also in this embodiment, the workpiece 38 at the front end 5 6 can be placed and removed by an operator on the clamping system 37. At the opposite Ab ^{¬ section of} the further displacement track 37 of the gripping robot 39 place the workpiece 38 on the clamping system 37 and remove it from the clamping system 37. Incidentally, the machining center 30s is operated as the machining center according to the fourth embodiment.

LIST OF REFERENCE NUMBERS

10 machine tool

12 first side wall

14 second side wall

16 first guide rail pair

18 crosses

20 second guide rail pair

22 bracket

24 work spindle

26 workpiece table

28 clamping devices

30, 30i to 30s machining center

32 processing room

34 machine bed

35 table assembly

36 sliding track

37 clamping system

38 workpiece

39 gripping robots

40 Rüsträum

41 palette

42 feeding and removal device

44 lifting and turning device

46 support beams

47 more sliding track

48 workpiece memory

50 turntables

52 receiving means

54 swivel device

56 front end

Claims

Machining center for processing workpieces (38), comprising

- at least one processing room (32), in which a machine tool (10) for machining ^workpieces (38) with at least one work spindle (24) is arranged,

at least one setup room (40), in which a workpiece (38) to be ^machined can be clamped in at least one clamping system (37) by means of a ^clamping device (28) for machining and a machined workpiece (38) can be clamped by the ^clamping system (37) is removable, and

a displacement track (36) running linearly from the setup room (40) into the processing space (32), along which the at least one clamping system (37) is ^displaceably arranged between the setup ^space (40) and the processing space (32), the displacement track (36) forms a front end (56) of the processing center (30) and ^delimits the setup ^space (40) and the processing space (32) to the front or the displacement path (36) at least limits the ^processing space (32) to the front limited,

wherein the workpiece (38) to be machined can be displaced relative to the work spindle on the displacement path (36) during ^machining by means of the at least one clamping system (37).

Machining center according to claim 1,

characterized in that the displacement track (36) runs ^horizontally and is arranged in a machine bed (34) of the machine ^tool (10).

Machining center according to one of claims 1 or 2, characterized in that the machining center comprises a gripper robot (39), with which a workpiece (38) to be machined can be placed on the at least one clamping system (37) for machining and a machined workpiece (38) from at least one clamping system (37) can be removed.

4. Processing center according to one of the preceding claims, characterized in that in the setup room (40) there is a feeding and removal device (42) for removing the at least one clamping system (37) from the displacement track (36) and for feeding the at least one clamping system ( 37) is arranged to the Ver ^¬ sliding track (36).

5. Processing center according to claim 4,

characterized in that the feeding and removal ^device (42) is ^designed as a lifting and rotating device (44).

6. Processing center according to claim 4,

characterized in that the feeding and removal ^device (42) comprises a further displacement track (47).

Machining center according to claim 6,

characterized in that the further displacement path (47) projects beyond the front end (56) of the machining center (30).

Machining center according to one of claims 4 to 7, characterized in that a workpiece ^storage (48) is arranged between the gripping robot (39) and the feeding and removal device (42).

9. Machining center according to claim 8,

characterized in that the workpiece storage (48) has receiving means (52) for receiving clamping systems (37) with different clamping means (28).

10. Processing center according to claim 9,

characterized in that the workpiece storage (48) comprises ^a turntable (50).

11. Processing center according to claims 4 and 8 or according to one of claims 9 or 10,

characterized in that the workpiece storage (48) and the feeding and removal device (42) are mounted on the machine ^bed (34) of the machine tool (10).

12. Processing center according to one of the preceding claims, characterized in that the at least one clamping ^system (37) can be connected to a table assembly (35) which is displaceably mounted in the displacement path (36) and the

Table assembly ( 35 ) a pivoting device ( 54 ) for

Pivoting the workpieces (38) includes.

13. Machining center according to one of the preceding claims, characterized in that the machine tool (10) ^has a first side wall (12) and a second side wall (14), on which a first pair of guide rails (16) is ^arranged ^runs perpendicular to the displacement track (36) and on which a cross member (18) is displaceably arranged, to which a holder (22) for the work ^spindles (24) is attached. Machining center claim 13,

characterized in that a second pair of guide rails is arranged on the cross member (18), which runs perpendicular to the ^sliding track (36) and perpendicular to the first ^pair of guide rails and by means of which the holder (22) for the work locker (24) is slidably fastened.