• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a machine tool (1) for machining workpieces (2), comprising: - a spindle receptacle (3) with at least one tool spindle (4) which can be driven in rotation; - A machine bed (10) with a pivoting bridge (11) which is pivotally mounted about a to the X-axis (5) parallel A-axis (12), wherein on the pivoting bridge (11) at least one rotary table (17) is arranged, which is rotatably mounted about a perpendicular to the A-axis (12) B-axis (19), wherein the rotary table (17) for receiving a pallet (20) for at least one of the workpieces to be machined (2) is formed; - A processing space (21) which is formed in the region of the pivoting bridge (11) and which is accessible through a in the spindle receptacle (3) recorded machining tool (7). The pivoting bridge (11) and / or pallet receiving compartments (25) are displaceable along a vertical Y-axis (9) perpendicular to the X-axis (5) and the Z-axis (6).
    公开号:AT520288A4
    申请号:T50029/2018
    申请日:2018-01-17
    公开日:2019-03-15
    发明作者:
    申请人:Fill Gmbh；
    IPC主号:
    专利说明:

    Summary
    The invention relates to a machine tool (1) for machining workpieces (2), comprising:
    - A spindle holder (3) with at least one rotationally drivable tool spindle (4);
    - A machine bed (10) with a swivel bridge (11) which is pivotally drivable about an A-axis (12) parallel to the X-axis (5), at least one rotary table (17) being arranged on the swivel bridge (11) the B axis (19), which is perpendicular to the A axis (12), is rotatably driven, the rotary table (17) being designed to receive a pallet (20) for at least one of the workpieces (2) to be machined;
    - A machining space (21) which is formed in the region of the swivel bridge (11) and which is accessible through a machining tool (7) accommodated in the spindle receptacle (3).
    The swivel bridge (11) and / or pallet receiving compartments (25) can be displaced along a vertical Y axis (9) which is perpendicular to the X axis (5) and the Z axis (6).
    Fig. 2
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    The invention relates to a machine tool for machining workpieces, and a method for changing a pallet on a machine tool.
    From EP2945776B1 a machine tool is known which has a spindle holder which can be moved in the X-axis, in the Y-axis and in the Z-axis. There is also a swivel bridge on which a rotary table is arranged. In addition to the swiveling ability, the swivel bridge cannot be additionally moved. Furthermore, a pallet changing device is disclosed which is displaceable in the Y axis and can be rotated about a vertical axis.
    The machine tool described in EP2945776B1 has the disadvantage that the machining speed or machining quality is limited due to its structure.
    The object of the present invention was to overcome the disadvantages of the prior art and to provide a machine tool and a method by means of which a workpiece can be processed at an increased processing speed.
    This object is achieved by a device and a method according to the claims.
    According to the invention, a machine tool is designed for machining workpieces. The machine tool includes:
    a spindle holder with at least one tool spindle that can be driven in rotation,
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    N2017 / 33900-AT-00 the tool spindle being displaceable at least along two perpendicular axes, in particular along a horizontal X axis and along a horizontal Z axis perpendicular to the X axis;
    a machine bed with a swivel bridge which is mounted so as to be pivotable about an A axis parallel to the X axis, the swivel bridge being designed to receive a pallet for at least one of the workpieces to be machined;
    - A machining space which is formed in the region of the swivel bridge and which is accessible through a machining tool accommodated in the spindle holder.
    Furthermore, it is provided that a pallet store is formed, which is arranged at a distance in the Z axis from the swivel bridge, wherein a plurality of pallet receiving compartments arranged one above the other in the Y axis are formed in the pallet store, which serve for receiving pallets, at least one of the pallet receiving compartments being a Has horizontal extension system, by means of which a pallet accommodated in the assigned pallet receiving compartment can be moved along the Z axis into the processing space, whereby the pallet can be made available for transfer to the swivel bridge and that the pallet receiving compartments and / or the swivel bridge along a perpendicular to the X axis and the Z-axis, vertical Y-axis are slidable.
    In a further development it can be provided that the machine tool comprises the following components:
    a spindle holder with at least one rotationally drivable tool spindle, the tool spindle being displaceable at least along two mutually perpendicular axes, in particular along a horizontal X axis and along a horizontal Z axis perpendicular to the X axis;
    - A machine bed with a swivel bridge, which is pivotably driven about an A-axis parallel to the X-axis, at least one rotary table being arranged on the swivel bridge, which is rotatably driven about a B-axis perpendicular to the A-axis, the Rotary table is designed for receiving a pallet for at least one of the workpieces to be machined;
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    - A machining space which is formed in the region of the swivel bridge and which is accessible through a machining tool accommodated in the spindle holder.
    Furthermore, a pallet store is formed, which is arranged at a distance from the swivel bridge in the Z-axis, wherein a plurality of pallet receiving compartments arranged one above the other in the Y-axis are formed in the pallet store, which serve for receiving pallets, at least one of the pallet receiving compartments having a horizontal extension system by means of which one the pallet accommodated in the associated pallet receiving compartment can be moved along the Z axis into the processing space, as a result of which the pallet can be made available for transfer to the rotary table.
    The swivel bridge and / or the pallet compartments of the pallet store can be designed to be displaceable along a vertical Y axis that is perpendicular to the X axis and the Z axis.
    The machine tool according to the invention has the advantage that workpieces can be machined quickly and precisely. In addition, the pallets with the workpieces arranged on them can easily be exchanged in the machining area of the machine tool. This means that the set-up time or idle time of the machine tool can be minimized. In addition, the pallets can be loaded with workpieces outside the processing area and the finished pallets can be exchanged, which means that the pallets can be set up with new workpieces in parallel with the machining process.
    Furthermore, it can be expedient if the swivel bridge can be displaced along the Y axis relative to the pallet receiving compartments, while the pallet receiving compartments are not designed to be displaceable along the Y axis. As a result of this measure, the machine tool can have a construction that is as simple as possible and therefore inexpensive.
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    It can also be expedient if the pallet receiving compartments are designed to be displaceable along the Y axis relative to the swivel bridge, while the swivel bridge is not designed to be displaceable along the Y axis. The pallet compartments can be e.g. an electric drive can be moved along the Y axis within the pallet warehouse. As a result of this measure, the machine tool can have a simple and therefore inexpensive construction.
    As an alternative, provision can be made if the swivel bridge can only be swiveled about the A axis and, in addition, can only be displaced along the Y axis. This measure allows the machine tool to be implemented relatively simply and inexpensively.
    It can further be provided that two tool spindles and two rotary tables are formed, one of the tool spindles being assigned to one of the rotary tables. This measure makes it possible for two workpieces to be machined simultaneously on the machine tool.
    In addition, it can be provided that the tool spindle can only be displaced along the X axis and the Z axis. This measure enables the machine tool to have a construction that is as simple and thus efficient as possible.
    Alternatively, it can be provided that the tool spindle can be displaced along the X axis, the Y axis and the Z axis.
    According to a further development, it is possible for each of the pallet receiving compartments to have a horizontal extension system. The individual pallets can be moved along the Z axis using the horizontal extension system.
    Furthermore, it can be expedient if the horizontal extension system is drive-coupled to an electric motor, in particular a servomotor. The advantage here is that an electric motor has a high travel speed and thereby
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    N2017 / 33900-AT-00 can have a high positioning accuracy. The electric motor can be coupled to the horizontal extension system, for example by means of a toothed belt or, for example, by means of a toothed rack.
    In addition, it can be provided that the horizontal extension system has a pallet holder which is designed to receive the pallet in a form-fitting manner. The advantage here is that the individual pallets can be accommodated in the pallet holder.
    Furthermore, it can be provided that a holding lug is formed on an end face of the pallet holder, into which the pallet can be hung.
    According to a special embodiment, it is possible for the pallet holder to be coupled to extension rails which are fastened, in particular to a side wall, in the pallet store, or for the extension rails to be coupled to a height adjustment device which is designed to be displaceable along the Y axis in the pallet store. The pallet holder can easily be pushed into the processing area using the extension rails. It is also conceivable that the extension rails are telescopic.
    According to an advantageous development, it can be provided that the pallet store is coupled to a pallet delivery system, by means of which the individual pallet receiving compartments can be equipped with pallets. This has the advantage that the pallets can be automatically loaded into the pallet store.
    In particular, it can be advantageous if the pallets can be pushed out of the pallet store laterally along the Z axis on the side opposite the processing space or along the X axis by means of the horizontal extension system. This measure enables the individual pallets to be pushed out of the pallet store for loading by a user.
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    Alternatively, it can be provided that for removing or inserting a pallet into the pallet store, all pallets except for the pallet that is to be exchanged are pushed out of the pallet store so that the pallet that is to be exchanged is accessible from above. This pallet can thus be lifted out of the pallet storage by means of a crane. The pallet store can be accessible from above.
    Furthermore, it can be provided that the pallets accessible from above are equipped with workpieces by means of a crane, a manipulator, or also manually. The crane or manipulator can have a double gripper, which can remove machined workpieces and insert new workpieces. In particular, a wide variety of workpieces can be placed in the pallet. For example, it can also be provided that several different workpieces are accommodated in a pallet.
    Furthermore, it can be provided that the pallet store and the receiving space are separated from one another by an openable separating element. The separating element can be designed, for example, as a roller door. Alternatively, the separating element can be designed, for example, as a sliding element.
    According to the invention, a method for changing a pallet on a machine tool is also provided. The process comprises the following process steps:
    - Providing a pallet loaded with workpieces in a pallet receiving compartment of a pallet store;
    - Providing a swivel bridge, with a rotary table for receiving the pallet, in the direction of a vertical Y-axis below the level of the pallet receiving compartment from which the pallet is to be exchanged;
    - Moving the pallet along a horizontal Z-axis into a machining area of the machine tool by means of a horizontal extension system of the pallet store;
    Picking up the pallet at the rotary table;
    - Lock the pallet on the rotary table.
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    The method according to the invention has the advantage that the pallet can be changed easily.
    It can further be provided that the relative positioning of the swivel bridge takes place exclusively by moving the swivel bridge along the vertical Y-axis below the level of the pallet receiving compartment from which the pallet is to be exchanged, and that the pallet is picked up on the rotary table by moving the swivel bridge along the vertical Y-axis is moved upwards until the pallet is picked up on the rotary table.
    The method steps mentioned have the advantage that when the pallet is changed along the Y axis, only the swivel bridge has to be moved, which is relatively simple and quick to implement.
    Alternatively, it can be provided that the relative positioning of the swivel bridge takes place exclusively by moving the pallet receiving compartments along the vertical Y-axis below the level of the pallet receiving compartment from which the pallet is to be exchanged, and that the pallet is picked up on the rotary table thereby that pallet receiving compartments are moved upwards along the vertical Y-axis until the pallet is picked up at the rotary table. This enables the pallet change to be carried out in a relatively simple manner.
    In addition, it can be provided that, in order to pick up the pallet from the horizontal extension system, the swivel bridge is moved upwards along the vertical Y-axis until the rotary table bears against the pallet and that the pallet is then moved along the vertical Y-axis by means of the rotary table is lifted up out of the form-fitting receptacle of the pallet holder. This has the advantage that the pallet does not have to be locked separately in the pallet holder, but that the pallet can simply be lifted out of the pallet holder.
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    In combination with this, it can be provided that, in order to pick up the pallet from the horizontal extension system, the pallet receiving compartments and the swivel bridge are moved up and down relative to one another along the vertical Y-axis until the rotary table lies against the pallet and that the pallet subsequently is lifted out of the form-fitting holder of the pallet holder by means of the rotary table along the vertical Y-axis. This measure allows the required displacement of the swivel bridge or the pallet receiving compartments to be shortened compared to an exclusive displacement of the swivel bridge along the Y axis.
    As an alternative to this, it can be provided that in order to pick up the pallet from the horizontal extension system, only the pallet receiving compartments are moved down along the vertical Y-axis until the rotary table lies against the pallet and that the pallet is then moved along the vertical Y- Axis is lifted up out of the form-fitting holder of the pallet holder. This measure enables the pallet to be easily pushed out of the pallet holder.
    Also advantageous is a configuration according to which it can be provided that after the pallet has been lifted out of the receptacle of the pallet holder, the empty pallet holder is moved into the pallet store along the horizontal Z-axis. This measure frees up the machining area and the machining of the workpiece can start.
    According to a further development, in order to remove the pallet picked up at the rotary table, the swivel bridge is displaced upwards along the vertical Y-axis in a first process step until the pallet is above the level of the pallet receiving compartment in which in relation to the Y-axis the pallet is to be picked up, is arranged, in a subsequent process step the pallet holder assigned to the pallet receiving compartment is pushed along a horizontal Z-axis into a machining area of the machine tool and then the swivel bridge is moved down along the vertical Y-axis until the pallet at the
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    Pallet holder is included. This measure allows a new pallet to be exchanged.
    Alternatively, it can be provided that in order to remove the pallet picked up on the rotary table, the pallet receiving compartments are moved downwards along the vertical Y-axis in a first process step until the pallet is below the level of the pallet receiving compartment in which the Pallet is to be picked up, is arranged, in a subsequent process step the pallet holder assigned to the pallet receiving compartment is pushed along a horizontal Z-axis into a machining area of the machine tool and then the pallet receiving compartments are shifted upwards along the vertical Y-axis until the pallet comes on the pallet holder is included. This measure allows a new pallet to be exchanged.
    A combination of the displacement of pallet compartments or the swivel bridge relative to one another can also be provided. To this end, in order to remove the pallet picked up on the rotary table, the swivel bridge along the vertical Y-axis and the pallet receiving compartments down the vertical Y-axis are moved downward in a first process step until the pallet is in relation to the Y-axis is arranged above the level of the pallet receiving compartment in which the pallet is to be received, in a subsequent process step the pallet holder assigned to the pallet receiving compartment is pushed along a horizontal Z axis into a machining area of the machine tool and then the swivel bridge along the vertical Y axis is moved downwards or the pallet receiving compartments are moved upwards along the vertical Y-axis until the pallet is picked up on the pallet holder. This measure enables the relative displacement paths of the pallet receiving compartments or the swivel bridge to be kept relatively short.
    Furthermore, it can be provided that after changing the pallet, the workpieces which are clamped on the pallet located in the processing space,
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    N2017 / 33900-AT-00 can be processed using the processing tool and at the same time on the
    Changing process outside the processing area brought pallet the machined workpieces are removed and the pallet is equipped with new workpieces. This leads to a reduction in non-productive times, since the pallets can be set up parallel to the machining process.
    In addition, it can be provided that the pallet brought outside the processing space is loaded with new workpieces directly in the pallet store. This means that the pallet does not have to be removed from the pallet storage in order to be equipped with new workpieces.
    It may also be expedient if the pallet brought outside the processing space is equipped with new workpieces by means of a manipulator.
    It is also advantageous if the manipulator has a first gripping unit and a second gripping unit, the workpieces already processed being removed from the pallet by means of the first gripping unit and new workpieces picked up in the second gripping unit being subsequently placed on the pallet.
    The X-axis, the Y-axis and the Z-axis are virtual axes of a coordinate system. The coordinate system can be moved to any point on the machine tool while maintaining its orientation.
    The A axis defines the axis of rotation of the swing bridge. The B axis defines the axis of rotation of the rotary table.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    Each show in a highly simplified, schematic representation:
    1 shows a perspective view of a first exemplary embodiment of a machine tool;
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    Fig. 2 shows a half section of a further embodiment of a
    Machine tool with a pallet storage, according to the
    Section line II-II from Fig. 1;
    Fig. 3 is a schematic detailed view of the connection between a
    Pallet holder and a pallet;
    4 a to c different method steps of a pallet changing process;
    Fig. 5 shows a half section of a further embodiment of a
    Machine tool with pallet that can be pushed out to the rear;
    Fig. 6 shows a half section of a further embodiment of a
    Machine tool with automatic pallet delivery system.
    In the introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, and the disclosures contained in the entire description can be applied analogously to the same parts with the same reference numerals or the same component names. The location information selected in the description, e.g. above, below, to the side, etc., referring to the figure described and illustrated immediately, and if the position is changed, these are to be applied accordingly to the new position.
    1 shows a perspective view of a schematic representation of a machine tool 1 for machining workpieces 2.
    The machine tool 1 comprises a spindle holder 3 in which at least one tool spindle 4 which can be driven in rotation is received. As can be seen in the present exemplary embodiment according to FIG. 1, it can also be provided that two tool spindles 4 are formed on the machine tool 1, which can be moved synchronously with one another. In the present exemplary embodiment it can be provided that the tool spindles 4 can be moved along an X-axis 5 or along a Z-axis 6 perpendicular to them. The X-axis 5 and the Z-axis 6 lie in a horizontal plane.
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    A Y axis 9 is arranged at right angles to the Z axis 6 and to the X axis 5 and thus runs vertically.
    To machine a workpiece 2, a machining tool 7 is clamped in the tool spindle 4. The machining tool 7 can be driven in rotation with respect to a spindle axis 8 by means of a rotary drive of the tool spindle 4. The spindle axis 8 runs parallel to the Z axis 6.
    In a further exemplary embodiment, not shown, it can also be provided that the spindle axis 8 is arranged parallel to the Y axis 9 and therefore in the vertical direction.
    As shown in FIG. 1, it can be provided that the machine tool 1 has two tool spindles 4, which are arranged parallel to one another.
    In a further embodiment, not shown, it can also be provided that only one tool spindle 4 is formed.
    Furthermore, the machine tool 1 comprises a machine bed 10 in which a swivel bridge 11 is received. The swivel bridge 11 is coupled to a first guide carriage 13 and a second guide carriage 14. In particular, it is provided that the swivel bridge 11 is pivotably received on the guide carriages 13, 14 with respect to an A axis 12. The first guide carriage 13 is received on a first guide rail 15 and the second guide carriage 14 is received on a second guide rail 16.
    The two guide carriages 13, 14 can each be displaced along the Y axis 9 relative to the guide rail 15, 16. As a result of this design of the guide slides 13, 14, the swivel bridge 11 can also be displaced along the Y axis 9 and thus in the vertical direction.
    In combination or as an alternative to this, it can be provided that the pallet receiving compartments 25 shown in FIG. 2 are designed to be displaceable along the Y axis 9 within the pallet store 22. The the pallet receiving compartments
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    N2017 / 33900-AT-00 can be used e.g. of an electric or hydraulic drive, not shown, can be height-adjustable along the vertical Y-axis 9.
    In the present exemplary embodiment according to FIG. 1, two rotary tables 17 are arranged on the swivel bridge 11. The rotary tables 17 are arranged at a distance 18 from one another. The distance 18 between the two rotary tables 17 is the same as the distance between the two tool spindles 4.
    It is also provided that the rotary tables 17 are each arranged on the swivel bridge 11 so as to be rotatable about a B axis 19. The rotary tables 17 can each be rotated exactly into a desired position by means of a rotary table drive.
    The rotary tables 17 each serve to hold a pallet 20.
    Alternatively, it can also be provided that the pallet 20 or the pallets 20 are picked up directly on the swivel bridge 11.
    For the sake of clarity, a pallet 20 is only shown on one of the two rotary tables in the view according to FIG. 1.
    One or more of the workpieces 2 are each received on the pallet 20. In particular, it is provided that the rotary table 17 has a fastening system by means of which the pallet 20 can be fixed. An upper side of the rotary table 17 and an lower side of the pallet 20 can be adapted to one another, so that the pallet 20 can be accommodated on the rotary table 17. The rotary table 17 or the pallet 20 can have any shape. In addition to the circular shape shown, the rotary table 17 can also have a polygonal shape, for example. Of course, the pallet 20 can also have any shape.
    As can also be seen from FIG. 1, it can be provided that the swivel bridge 11 has a cranked shape, so that the surface of the pallet 20 on which the workpieces 2 are accommodated lies in the vicinity of the A axis 12.
    A machining space 21 is formed on the machine tool 1, in which the machining tool 7 is brought into contact with the workpiece 2
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    N2017 / 33900-AT-00 can. The machining space 21 is defined in particular as the space in which the workpiece 2 can be moved using the swivel bridge 11 and the workpiece 2 can be machined using the machining tool 7.
    When machining the workpiece 2, it is moved in the Y direction by means of the swivel bridge 11. Furthermore, the swivel bridge 11 is rotated about the A axis 12, so that the angular position of the workpiece 2 can be changed. In addition, the rotary table 17 can be rotated about the B axis 19, so that the workpiece 2 is accessible from all sides. In addition, the tool spindle 4 can be moved in the direction of the Z axis and in the direction of the Y axis. The movements mentioned can be carried out either individually and independently of one another or at the same time and coordinated with one another.
    FIG. 2 shows a further exemplary embodiment of a machine tool 1, the same reference numbers or component designations being used for the same parts as in the previous FIG. 1. In order to avoid unnecessary repetitions, reference is made to the detailed description in the previous FIG.
    pointed out or referred.
    In FIG. 2, a sectional view according to the section line II - II from FIG. 1 has been selected. In the exemplary embodiment of machine tool 1, which is shown in FIG. 2, in addition to the components already described, a pallet store 22 is provided, which is used to hold several pallets 20. The pallet store 22 has a pallet receiving space 23 in which the individual pallets 20 can be temporarily stored.
    As can be seen from FIG. 2, it can be provided that the pallet receiving space 23 and the processing space 21 are separated from one another by means of a separating element 24, the separating element 24 being able to be opened or closed as required. The separating element 24 is shown in dashed lines in its closed position.
    A plurality of pallet receiving compartments 25 are arranged in the pallet receiving space 23, each of which serves to receive a pallet 20. As can be seen from FIG. 2, it can be provided, for example, that four pallet receiving compartments 25
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    N2017 / 33900-AT-00 are arranged one above the other. The pallet receiving compartments 25 are spaced apart from one another in the direction of the Y axis 9. In addition, as mentioned above, the pallet receiving compartments 25 can be designed to be height-adjustable along the vertical Y-axis 9.
    As can be seen from FIG. 2, it can be provided that each of the pallet receiving compartments 25 has a horizontal extension system 26, by means of which the pallets 20 can be moved from the pallet receiving space 23 into the processing space 21. The pallets 20 are shifted in the direction of the Z axis 6.
    FIG. 2 also shows a manipulator 32 which is provided for changing pallets or changing workpieces. The manipulator 32 is only shown schematically. This can, for example, be arranged on a crane or on a robot. As can be seen from FIG. 2, it can be provided that the manipulator 32 has a first gripping unit 33 and a second gripping unit 34. The manipulator 32 can be designed to be rotatable about a vertical axis, so that the first gripping unit 33 or the second gripping unit 34 can be positioned above the pallet 20 by a rotary movement of the manipulator 32.
    As can be seen from FIG. 2, it can be provided that the manipulator 32 can be moved freely in the area of the machine tool 1. The manipulator 32 can thus intervene in the pallet store 22, for example. Furthermore, it can also be provided that the manipulator 32 or its first gripping unit 33 and a second gripping unit 34 are designed to be pivotable about at least one horizontal axis.
    Furthermore, it can be provided that the horizontal extension system 26 each has a pallet holder 27 which serves to receive the pallet 20 and which is each mounted on an extension rail 28, so that the pallet holder 27 can be displaced in the direction of the Z-axis 6.
    In particular, it is provided that the pallet 20 is detachably coupled to the pallet holder 27. For detachable connection between the pallet bracket 27 and
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    N2017 / 33900-AT-00 of pallet 20, a wide variety of design variants are conceivable. For example, it can be provided that the pallet 20 is positively coupled to the pallet holder 27 and, for example, by using gravity in the
    Pallet holder 27 is held. Such an embodiment is shown schematically in FIG. 3.
    In yet another embodiment variant, it is also conceivable that an actively switchable coupling is provided, by means of which the pallet 20 can be coupled to the pallet holder 27.
    FIG. 3 shows a detailed view of the possible form-fitting connection between the pallet holder 27 and the pallet 20. As can be seen from FIG. 3, it can be provided that the pallet holder 27 has a holding lug 29 which corresponds to a corresponding recess in the pallet 20 and the pallet 20 can thus be positively coupled to the pallet holder 27. The pallet 20 need only be coupled to the pallet holder 27 in an edge region 30. The remaining part of the pallet 20 can be held freely cantilevered by the positive connection shown.
    As can be seen from FIG. 3, the retaining lug 29 is selected such that the pallet 20 can be held on the pallet holder 27 by using gravity.
    The holding lug 29 can, for example, extend over the entire width of the pallet holder 27. Alternatively, it is also conceivable that the retaining lug 29 is formed only in a partial area of the width of the pallet holder 27. For example, it is conceivable that the retaining lug 29 is designed in the form of one or more guide pins, which cooperate with corresponding recesses in the pallet 20.
    A possible pallet changing process is described with reference to Figures 4a to 4c.
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    4a shows the first method step of a pallet changing process. That pallet holder 27 on which the pallet 20 to be exchanged in the machining space 21 of the machine tool 1 is arranged is located in the pallet receiving space 23 in the illustration according to FIG. 4a.
    In the first method step, the swivel bridge 11 is shifted downward along the Y axis 9 until the top of the rotary table 17 is below the level of the underside of the pallet 20 to be picked up. The separating element 24 can be opened at the same time or upstream or downstream of this process.
    In a subsequent process step according to FIG. 4b, the pallet holder 27 together with the pallet 20 accommodated thereon can be moved from the pallet receiving space 23 into the processing space 21. The pallet 20 is shifted into the processing space 21 until the pallet 20 is arranged above the rotary table 17 in a receiving position corresponding to FIG. 4b. In a subsequent process step, the swivel bridge 11 together with the rotary table 17 can be moved upwards along the vertical Y axis 9 until the pallet 20 rests on the rotary table 17. The pallet 20 can then be coupled to the rotary table 17, wherein a fixed connection between the pallet 20 and the rotary table 17 can be established by means of a coupling device.
    In a further method step according to FIG. 4c, the swivel bridge 11 can be raised further, so that the pallet 20 can be lifted out of the receptacle of the pallet holder 27.
    The pallet holder 27 can then be pushed horizontally again along the Z axis 6 into the pallet receiving space 23 and the separating element 24 can be closed. The machining process for machining the workpiece 2 can then be started. After the machining process has ended, the pallet 20 with the finished machined workpiece 2 can be moved again from the machining space 21 into the pallet receiving space 23 in the reverse order.
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    In a first method step, the separating element 24 can be opened and the swivel bridge 11 can be moved upwards, so that the
    The rotary table 17 pallet 20 to be removed is positioned above the empty pallet holder 27. The empty pallet holder 27 can then be moved into the processing space 21.
    In a subsequent process step, the rotary table 17 together with the pallet 20 accommodated thereon can be displaced vertically downward, so that the pallet holder 27 engages in the pallet 20. When the receiving position is reached, the connection between the rotary table 17 and the pallet 20 can be released, so that the pallet 20 can be held on the pallet holder 27. The rotary table 17 can then be moved further down until the pallet 20 no longer rests on the rotary table 17 but is held exclusively by the pallet holder 27. If the rotary table 17 is sufficiently spaced from the pallet 20, the pallet holder 27 together with the pallet 20 can be moved horizontally into the pallet receiving space 23.
    A further pallet 20 with unprocessed workpieces 2, which is arranged in a further one of the pallet receiving compartments 25, can then be exchanged in accordance with the method steps already described.
    Moving out the pallet 20 with the workpieces 2 already processed from the processing space 21 into the pallet receiving space 23 and moving a pallet 20 with workpieces 2 still to be processed into the processing space 21 can overlap in time, since the pallets 20 in different pallet receiving compartments 25 are arranged. For this purpose, it may be necessary for each of the pallet holders 27 to have its own drive, by means of which it can be displaced along the Z axis 6 independently of the other pallet holders 27.
    Analogous to the description of FIGS. 4a to 4c, relative positioning of the swivel bridge 11 and the pallet receiving compartments 25 with respect to one another is conceivable in such a way that the swivel bridge 11 follows in the direction of the vertical Y axis 9
    19/43
    N2017 / 33900-AT-00 is pushed down or the pallet receiving compartments are pushed up as far as to arrange the swing bridge 11 below that pallet receiving compartment 25 from which the pallet 20 is to be exchanged.
    The second method step of changing the pallet 20 takes place as described above, again with the pivoting bridge 11 and the pallet receiving compartments 25 moving relative to one another.
    Likewise analogous to the above description of FIG. 4c, the pallet 20 can be lifted out of the pallet holder 27, with the swivel bridge 11 and the pallet receiving compartments 25 again being able to move relative to one another.
    As an alternative to the description of FIGS. 4a to 4c, it is also conceivable that the relative positioning of the swivel bridge 11 and the pallet receiving compartments 25 takes place in such a way that the swivel bridge 11 is not pushed downward in the direction of the vertical Y axis 9, but only the pallet receiving compartments 25 as far as are pushed up to arrange the swing bridge 11 below that pallet receiving compartment 25 from which the pallet 20 is to be exchanged. The further process steps have already been described mutatis mutandis for FIGS. 4b and c and are therefore not repeated here since the person skilled in the art can transfer the process steps described above to the exclusive displacements of the pallet receiving compartments 25.
    FIG. 5 shows a further exemplary embodiment of the machine tool 1, the same reference numbers or component designations as in the preceding FIGS. 1 to 4 being used for the same parts. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 1 to 4.
    As can be seen from FIG. 5, it can be provided that the pallet 20 can be moved out of the pallet receiving space 23 on the side opposite the processing space 21, so that the pallet 20 can be equipped with new workpieces, for example.
    20/43
    N2017 / 33900 AT-00
    Furthermore, it can also be provided that in a position of the pallet holder 27, as shown in FIG. 5, the complete pallet 20 can be exchanged and replaced with a new pallet 20. This can be done using a crane, for example.
    FIG. 6 shows a further exemplary embodiment of the machine tool 1, the same reference numerals or component designations being used for the same parts as in the previous FIGS. 1 to 5. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 1 to 5.
    As can be seen from FIG. 6, it can be provided that the pallet store 22 is coupled to a pallet delivery system 31, by means of which pallets 20 can be automatically loaded into the pallet receiving space 23 or removed therefrom.
    The exemplary embodiments show possible design variants, it being noted at this point that the invention is not limited to the specially illustrated design variants of the same, but rather also various combinations of the individual design variants with one another are possible and this variation possibility is based on the teaching of technical action through the present invention Ability of the specialist working in this technical field.
    The scope of protection is determined by the claims. However, the description and drawings are to be used to interpret the claims. Individual features or combinations of features from the different exemplary embodiments shown and described can represent independent inventive solutions. The object on which the independent inventive solutions are based can be found in the description.
    All information on value ranges in the objective description is to be understood so that it includes any and all sub-areas, e.g. the information 1 to 10 is to be understood so that all sub-areas, starting from
    21/43
    N2017 / 33900-AT-00 are included in the lower limit 1 and the upper limit 10, i.e. all sections start 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 order, it should finally be pointed out that, for a better understanding of the structure, elements have sometimes been shown to scale and / or enlarged and / or reduced.
    22/43
    N2017 / 33900 AT-00
    LIST OF REFERENCE NUMBERS
    1 machine tool 31 Range delivery system 2 workpiece 32 manipulator 3 Spindle taper 33 first gripping unit 4 tool spindle 34 second gripping unit 5 X axis 6 Z-axis 7 processing tool 8th spindle axis 9 Y-axis 10 machine bed 11 swing bridge 12 A axis 13 first guide carriage 14 second carriage 15 first guide rail 16 second guide rail 17 roundtable 18 distance 19 B-axis 20 palette 21 working space 22 pallet storage 23 Range accommodation space 24 separating element 25 Palette holding compartment 26 Horizontalausschubsystem 27 pallet holder 28 Ausschubschienen 29 retaining nose 30 border area
    23/43
    N2017 / 33900 AT-00
    权利要求:
    Claims (22)
    [1]
    claims
    1. Machine tool (1) for machining workpieces (2), comprising:
    - A spindle holder (3) with at least one tool spindle (4) which can be driven in rotation, the tool spindle (4) at least along two mutually perpendicular axes, in particular along a horizontal X axis (5) and along one perpendicular to the X axis (5 ) standing horizontal Z-axis (6), is displaceable;
    - A machine bed (10) with a swivel bridge (11) which is pivotably drivable about an A-axis (12) parallel to the X-axis (5), the swivel bridge (11) for receiving a pallet (20) for at least one of the machines to be processed Workpieces (2) is formed;
    - a machining space (21) which is formed in the region of the swivel bridge (11) and which is accessible through a machining tool (7) accommodated in the spindle receptacle (3);
    characterized in that a pallet store (22) is formed, which is arranged in the Z-axis (6) at a distance from the swivel bridge (11), in the pallet store (22) a plurality of pallet receiving compartments arranged one above the other in the Y-axis (9) 25), which serve to receive pallets (20), at least one of the pallet receiving compartments (25) having a horizontal extension system (26) by means of which a pallet (20) accommodated in the associated pallet receiving compartment (25) along the Z axis ( 6) can be moved into the processing space (21), so that the pallet (20) can be provided for transfer to the swivel bridge (11) and that the pallet receiving compartments (25) and / or the swivel bridge (11) along a perpendicular to the X- Axis (5) and the Z-axis (6) vertical Y-axis (9) are slidable.
    [2]
    2. Machine tool according to claim 1, characterized in that the pallet receiving compartments (25) along the vertical Y axis (9) relative to
    24/43
    N2017 / 33900 AT-00
    Swivel bridge (11) are designed to be displaceable and the swivel bridge (11) cannot be displaced along the vertical Y-axis (9).
    [3]
    3. Machine tool according to claim 1, characterized in that the swivel bridge (11) along the vertical Y axis (9) is designed to be displaceable relative to the pallet receiving compartments (25) and the pallet receiving compartments (25) not along the vertical Y axis (9) is movable.
    [4]
    4. Machine tool according to one of the preceding claims, characterized in that each of the pallet receiving compartments (25) has a horizontal extension system (26).
    [5]
    5. Machine tool according to one of the preceding claims, characterized in that the horizontal extension system (26) with an electric motor, in particular a servo motor, is drive-coupled.
    [6]
    6. Machine tool according to one of the preceding claims, characterized in that the horizontal extension system (26) has a pallet holder (27) which is designed for the positive reception of the pallet (20).
    [7]
    7. Machine tool according to claim 6, characterized in that on one end face of the pallet holder (27) a retaining lug (29) is formed, in which the pallet (20) can be hung.
    [8]
    8. Machine tool according to claim 6 or 7, characterized in that the pallet holder (27) is coupled to extension rails (28) which, in particular on a side wall, are fastened in the pallet store (22).
    25/43
    N2017 / 33900 AT-00
    [9]
    9. Machine tool according to one of the preceding claims, characterized in that the pallet store (22) is coupled to a pallet delivery system (31), by means of which the individual pallet receiving compartments (25) can be equipped with pallets (20).
    [10]
    10. Machine tool according to one of the preceding claims, characterized in that the pallets (20) by means of the horizontal extension system (26) along the Z-axis (6) on the side opposite to the machining space (21) or along the X-axis (5) can be pushed out of the side of the pallet store (22).
    [11]
    11. The method for changing a pallet (20) on a machine tool (1) according to one of the preceding claims, characterized in that the method comprises the following method steps:
    - Providing a pallet (20) equipped with workpieces (2) in a pallet receiving compartment (25) of a pallet store (22);
    - Relative positioning of a swivel bridge (11) for receiving the pallet (20), in the direction of a vertical Y axis (9) below the level of that pallet receiving compartment (25) from which the pallet (20) is to be exchanged;
    - Moving the pallet (20) along a horizontal Z-axis (6) into a processing space (21) of the machine tool (1) by means of a horizontal extension system (26) of the pallet store (22);
    - Picking up the pallet (20) on the swivel bridge (11) by moving the swivel bridge (11) relative to the pallet receiving compartment (25) from which the pallet (20) is to be exchanged until the pallet rests on the swivel bridge (11);
    - Lock the pallet (20) on the swivel bridge (11).
    [12]
    12. The method according to claim 11, characterized in that the relative positioning of the swivel bridge (11), exclusively by moving the swivel bridge (11) along the vertical Y-axis (9) below the level of that pallet receiving compartment (25) from which the pallet (20 ) changed
    26/43
    N2017 / 33900-AT-00, and that the pallet (20) is picked up on the swivel bridge (11) by moving the swivel bridge (11) along the vertical Y-axis (9) upwards until the pallet (20) is added to the swivel bridge (11).
    [13]
    13. The method according to claim 11, characterized in that the relative positioning of the swivel bridge (11), exclusively by moving the pallet receiving compartments (25), along the vertical Y-axis (9) below the level of that pallet receiving compartment (25) from which the pallet ( 20) is to be replaced, and the pallet (20) is picked up on the swivel bridge (11) by moving the pallet receiving compartments (25) upwards along the vertical Y axis (9) until the pallet (20) is added to the swivel bridge (11).
    [14]
    14. The method according to claim 11 or 12, characterized in that for receiving the pallet (20) from the horizontal extension system (26), the swivel bridge (11) along the vertical Y-axis (9) is moved up until the on the swivel bridge (11) bears against the pallet (20) and that the pallet (20) is then lifted out of the form-fitting receptacle of the pallet holder (27) by means of the swivel bridge (11) along the vertical Y-axis (9) ,
    [15]
    15. The method according to claim 11 or 13, characterized in that for receiving the pallet (20) from the horizontal extension system (26), the pallet receiving compartments (25) along the vertical Y-axis (9) are moved down until the swivel bridge ( 11) lies against the pallet (20) and that the pallet (20) is then lifted out of the form-fitting receptacle of the pallet holder (27) along the vertical Y-axis (9) by means of the swivel bridge (11)
    [16]
    16. The method according to any one of claims 11 to 15, characterized in that subsequent to lifting the pallet (20) out of the receptacle
    27/43
    N2017 / 33900-AT-00 the pallet holder (27), the empty pallet holder (27) is moved along the horizontal Z-axis (6) into the pallet store (22).
    [17]
    17. The method according to any one of claims 11 to 12 or 14 or 16, characterized in that for removing the pallet (20) received on the swivel bridge (11) in a first method step, the swivel bridge (11) along the vertical Y axis (9th ) is moved upwards until the pallet (20) is arranged with respect to the Y-axis (9) above the level of that pallet receiving compartment (25) in which the pallet (20) is to be received, in a subsequent process step the pallet holder (27) assigned to the pallet receiving compartment (25) is pushed along a horizontal Z-axis (6) into a machining space (21) of the machine tool (1) and then the swivel bridge (11) is moved downwards along the vertical Y-axis (9) until the pallet (20) is received on the pallet holder (27).
    [18]
    18. The method according to any one of claims 11 or 13 or 15 to 16, characterized in that for removing the pallet (20) received on the swivel bridge (11) in a first method step, the pallet receiving compartments (25) along the vertical Y axis (9) are shifted downwards until the pallet (20) is arranged with respect to the Y-axis (9) below the level of that pallet receiving compartment (25) in which the pallet (20) is to be received, with the the pallet holder (25) assigned to the pallet holder (27) is pushed along a horizontal Z-axis (6) into a processing space (21) of the machine tool (1) and then the pallet holder compartments (25) along the vertical Y-axis (9) upwards is moved until the pallet (20) is received on the pallet holder (27).
    [19]
    19. The method according to any one of claims 11 to 18, characterized in that after changing the pallet (20), the workpieces (2) which are clamped on the pallet (20) located in the processing space (21), by means of the
    28/43
    N2017 / 33900 AT-00
    Machining tool (7) are processed and at the same time the machined workpieces (2) are removed from the pallet (20) brought outside the machining space (21) during the changing process and the pallet (20) is equipped with new workpieces (2).
    [20]
    20. The method according to claim 16, characterized in that the pallet (20) brought outside the processing space (21) is loaded directly in the pallet store (22) with new workpieces (2).
    [21]
    21. The method according to claim 19 or 20, characterized in that the pallet (20) brought outside the processing space (21) is equipped with a manipulator (32) with new workpieces (2).
    [22]
    22. The method according to claim 21, characterized in that the manipulator (32) has a first gripping unit (33) and a second gripping unit (34), the workpieces (2) which have already been processed being removed from the pallet by means of the first gripping unit (33). 20) are removed and then new workpieces (2) picked up in the second gripping unit (34) are placed on the pallet (20).
    29/43
    N2017 / 33900 AT-00
    Fill Gesellschaft m.b.H.
    30/43 η
    Μ
    IL
    Fill Gesellschaft m.b.H.
    31/43
    Fill Gesellschaft m.b.H.
    32/43
    0)
    Μ
    IL
    Fill Gesellschaft m.b.H.
    33/43 η
    Μ
    IL
    Fill Gesellschaft m.b.H.
    34/43 α
    Μ
    IL
    Fill Gesellschaft m.b.H.
    35/43
    Fill Gesellschaft m.b.H.
    36/43
    0)
    Μ
    IL
    Fill Gesellschaft m.b.H.
    37/43
    claims
    1. Machine tool (1) for machining workpieces (2), comprising:
    - A spindle holder (3) with at least one tool spindle (4) which can be driven in rotation, the tool spindle (4) at least along two mutually perpendicular axes, in particular along a horizontal X axis (5) and along one perpendicular to the X axis (5 ) standing horizontal Z-axis (6), is displaceable;
    - A machine bed (10) with a swivel bridge (11), which is pivotably driven about an A-axis (12) parallel to the X-axis (5), the swivel bridge (11) for receiving a pallet (20) for at least one of the machining workpieces (2) is formed;
    - a machining space (21) which is formed in the region of the swivel bridge (11) and which is accessible through a machining tool (7) accommodated in the spindle receptacle (3);
    characterized in that a pallet store (22) is formed, which is arranged in the Z-axis (6) at a distance from the swivel bridge (11), in the pallet store (22) a plurality of pallet receiving compartments arranged one above the other in the Y-axis (9) 25), which serve to receive pallets (20), at least one of the pallet receiving compartments (25) having a horizontal extension system (26), by means of which a pallet (20) accommodated in the associated pallet receiving compartment (25) along the Z axis ( 6) can be moved into the processing space (21), so that the pallet (20) can be provided for transfer to the swivel bridge (11) and that the pallet receiving compartments (25) and / or the swivel bridge (11) along a perpendicular to the X- Axis (5) and the Z-axis (6) vertical Y-axis (9) are slidable.
    2. Machine tool according to claim 1, characterized in that the pallet receiving compartments (25) along the vertical Y axis (9) relative to
    38/43
    A2018 / 50029-AT-00 i LAST CLAIMS
    Swivel bridge (11) are designed to be displaceable and the swivel bridge (11) cannot be displaced along the vertical Y-axis (9).
    3. Machine tool according to claim 1, characterized in that the swivel bridge (11) along the vertical Y axis (9) is designed to be displaceable relative to the pallet receiving compartments (25) and the pallet receiving compartments (25) not along the vertical Y axis (9) is movable.
    4. Machine tool according to one of the preceding claims, characterized in that each of the pallet receiving compartments (25) has a horizontal extension system (26).
    5. Machine tool according to one of the preceding claims, characterized in that the horizontal extension system (26) with an electric motor, in particular a servo motor, is drive-coupled.
    6. Machine tool according to one of the preceding claims, characterized in that the horizontal extension system (26) has a pallet holder (27) which is designed for the positive reception of the pallet (20).
    7. Machine tool according to claim 6, characterized in that on one end face of the pallet holder (27) a retaining lug (29) is formed, in which the pallet (20) can be hung.
    8. Machine tool according to claim 6 or 7, characterized in that the pallet holder (27) is coupled to extension rails (28) which, in particular on a side wall, are fastened in the pallet store (22).
    39/43
    A2018 / 50029-AT-00 [LAST CLAIMS]
    9. Machine tool according to one of the preceding claims, characterized in that the pallet store (22) is coupled to a pallet delivery system (31), by means of which the individual pallet receiving compartments (25) can be equipped with pallets (20).
    10. Machine tool according to one of the preceding claims, characterized in that the pallets (20) by means of the horizontal extension system (26) along the Z-axis (6) on the side opposite to the machining space (21) or along the X-axis (5) can be pushed out laterally from the pallet store (22).
    11. The method for changing a pallet (20) on a machine tool (1) according to one of the preceding claims, characterized in that the method comprises the following method steps:
    - Providing a pallet (20) equipped with workpieces (2) in a pallet receiving compartment (25) of a pallet store (22);
    - Relative positioning of a swivel bridge (11) for receiving the pallet (20), in the direction of a vertical Y axis (9) below the level of that pallet receiving compartment (25) from which the pallet (20) is to be exchanged;
    - Moving the pallet (20) along a horizontal Z axis (6) into a processing space (21) of the machine tool (1) by means of a horizontal extension system (26) of the pallet store (22);
    - Picking up the pallet (20) on the swivel bridge (11) by moving the swivel bridge (11) relative to the pallet receiving compartment (25) from which the pallet (20) is to be exchanged until the pallet rests on the swivel bridge (11);
    - Lock the pallet (20) on the swivel bridge (11).
    12. The method according to claim 11, characterized in that the relative positioning of the swivel bridge (11), exclusively by moving the swivel bridge (11) along the vertical Y-axis (9) below the level of that pallet receiving compartment (25) from which the pallet (20 ) changed
    40/43
    A2018 / 50029-AT-00 [LAST CLAIMS), and the pallet (20) is picked up on the swivel bridge (11) by moving the swivel bridge (11) upwards along the vertical Y-axis (9) until the pallet (20) is received on the swivel bridge (11).
    13. The method according to claim 11, characterized in that the relative positioning of the swivel bridge (11), exclusively by moving the pallet receiving compartments (25), along the vertical Y-axis (9) below the level of that pallet receiving compartment (25) from which the pallet ( 20) is to be replaced, and the pallet (20) is picked up on the swivel bridge (11) by moving the pallet receiving compartments (25) upwards along the vertical Y axis (9) until the pallet (20) is added to the swivel bridge (11).
    14. The method according to claim 11 or 12, characterized in that for receiving the pallet (20) from the horizontal extension system (26), the swivel bridge (11) along the vertical Y-axis (9) is moved up until the on the swivel bridge (11) bears against the pallet (20) and that the pallet (20) is then lifted out of the form-fitting receptacle of the pallet holder (27) by means of the swivel bridge (11) along the vertical Y-axis (9) ,
    15. The method according to claim 11 or 13, characterized in that for receiving the pallet (20) from the horizontal extension system (26), the pallet receiving compartments (25) along the vertical Y-axis (9) are moved down until the swivel bridge ( 11) lies against the pallet (20) and that the pallet (20) is then lifted out of the form-fitting receptacle of the pallet holder (27) along the vertical Y-axis (9) by means of the swivel bridge (11)
    16. The method according to any one of claims 11 to 15, characterized in that subsequent to lifting the pallet (20) from the receptacle
    A2018 / 50029 AT-00
    LAST CLAIMS
    41/43 of the pallet holder (27), the empty pallet holder (27) is moved along the horizontal Z-axis (6) into the pallet store (22).
    17. The method according to any one of claims 11 to 12 or 14 or 16, characterized in that for removing the pallet (20) received on the swivel bridge (11) in a first method step, the swivel bridge (11) along the vertical Y axis (9th ) is moved upwards until the pallet (20) is arranged with respect to the Y-axis (9) above the level of that pallet receiving compartment (25) in which the pallet (20) is to be received, in a subsequent process step the pallet holder (27) assigned to the pallet receiving compartment (25) is pushed along a horizontal Z-axis (6) into a machining space (21) of the machine tool (1) and then the swivel bridge (11) is moved downwards along the vertical Y-axis (9) until the pallet (20) is received on the pallet holder (27).
    18. The method according to any one of claims 11 or 13 or 15 to 16, characterized in that for removing the pallet (20) received on the swivel bridge (11) in a first method step, the pallet receiving compartments (25) along the vertical Y axis (9) are shifted downwards until the pallet (20) is arranged with respect to the Y-axis (9) below the level of that pallet receiving compartment (25) in which the pallet (20) is to be received, with the the pallet holder (25) associated with the pallet holder (27) is pushed along a horizontal Z-axis (6) into a processing space (21) of the machine tool (1) and then the pallet holder compartments (25) along the vertical Y-axis (9) upwards is moved until the pallet (20) is received on the pallet holder (27).
    19. The method according to any one of claims 11 to 18, characterized in that after changing the pallet (20), the workpieces (2) which are clamped on the pallet (20) located in the processing space (21) by means of the
    42/43
    A2018 / 50029-AT-00 (LAST CLAIMS)
    Machining tool (7) are processed and at the same time the machined workpieces (2) are removed from the pallet (20) brought outside the machining space (21) during the changing process and the pallet (20) is equipped with new workpieces (2).
    20. The method according to claim 16, characterized in that the pallet (20) brought outside the processing space (21) is loaded directly in the pallet store (22) with new workpieces (2).
    21. The method according to claim 19 or 20, characterized in that the pallet (20) brought outside the processing space (21) is equipped with a manipulator (32) with new workpieces (2).
    22. The method according to claim 21, characterized in that the manipulator (32) has a first gripping unit (33) and a second gripping unit (34), the workpieces (2) which have already been processed being removed from the pallet by means of the first gripping unit (33). 20) are removed and then new workpieces (2) picked up in the second gripping unit (34) are placed on the pallet (20).
    43/43 _____________________ A2018 / 50029-AT-00 ___________ (LAST CLAIMS)
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    同族专利:
    公开号 | 公开日
    EP3740344A1|2020-11-25|
    AT520288B1|2019-03-15|
    WO2019140472A1|2019-07-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2082831A1|2008-01-24|2009-07-29|Maschinenfabrik Berthold Hermle AG|Processing centre with a tool changer|
    EP3117955A1|2015-07-14|2017-01-18|Agie Charmilles New Technologies SA|Machine tool with a pallet changer, pallet and pallet changer|
    DE102016107648B3|2016-04-25|2017-07-20|Rolf Wissner|Milling machine with a clamping device for a workpiece a positionally stable clamping frame|WO2020225312A1|2019-05-07|2020-11-12|Chiron-Werke Gmbh & Co. Kg|Machine tool having a gantry|DE102009011672A1|2009-01-16|2010-07-22|Wieland Dental + Technik Gmbh & Co. Kg|processing machine|
    DE102013216752A1|2013-05-08|2014-11-13|Licon Mt Gmbh & Co. Kg|Machine tool|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50029/2018A|AT520288B1|2018-01-17|2018-01-17|Machine tool for machining workpieces, and method for changing a pallet on a machine tool|ATA50029/2018A| AT520288B1|2018-01-17|2018-01-17|Machine tool for machining workpieces, and method for changing a pallet on a machine tool|
    PCT/AT2019/060014| WO2019140472A1|2018-01-17|2019-01-16|Machine tool for machining workpieces, and method for changing a pallet in a machine tool|
    EP19706857.0A| EP3740344A1|2018-01-17|2019-01-16|Machine tool for machining workpieces, and method for changing a pallet in a machine tool|
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