WO2010004961A1 - ワーク加工装置及びワーク加工方法 - Google Patents
ワーク加工装置及びワーク加工方法 Download PDFInfo
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- WO2010004961A1 WO2010004961A1 PCT/JP2009/062303 JP2009062303W WO2010004961A1 WO 2010004961 A1 WO2010004961 A1 WO 2010004961A1 JP 2009062303 W JP2009062303 W JP 2009062303W WO 2010004961 A1 WO2010004961 A1 WO 2010004961A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
- B23Q39/02—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station
- B23Q39/028—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of workholder per toolhead in operating position
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/06—Turning-machines or devices characterised only by the special arrangement of constructional units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B13/00—Arrangements for automatically conveying or chucking or guiding stock
- B23B13/04—Arrangements for automatically conveying or chucking or guiding stock for turning-machines with a plurality of working-spindles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/16—Turret lathes for turning individually-chucked workpieces
- B23B3/167—Turret lathes for turning individually-chucked workpieces lathe with two or more toolslides carrying turrets
- B23B3/168—Arrangements for performing other machining operations, e.g. milling, drilling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/30—Turning-machines with two or more working-spindles, e.g. in fixed arrangement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/36—Associations of only turning-machines directed to a particular metal-working result
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
- B23Q1/015—Frames, beds, pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
- B23Q39/04—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps
- B23Q39/048—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps the work holder of a work station transfers directly its workpiece to the work holder of a following work station
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
- B23B3/06—Turning-machines or devices characterised only by the special arrangement of constructional units
- B23B3/065—Arrangements for performing other machining operations, e.g. milling, drilling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
- B23Q2039/006—Machines with multi-spindles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
- B23Q2039/008—Machines of the lathe type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
- B23Q39/02—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station
- B23Q39/021—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like
- B23Q39/025—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with different working directions of toolheads on same workholder
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5104—Type of machine
- Y10T29/5105—Drill press
- Y10T29/5107—Drilling and other
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5104—Type of machine
- Y10T29/5109—Lathe
- Y10T29/5114—Lathe and tool
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2502—Lathe with program control
- Y10T82/2506—And tool turret
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2514—Lathe with work feeder or remover
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2524—Multiple
Definitions
- the present invention relates to a workpiece machining apparatus and a workpiece machining method.
- the workpiece machining by the second spindle has been completed. Since the second spindle has to wait until it moves to a position opposite to the third spindle, the waiting time of the third spindle becomes long and the operation rate of the workpiece processing apparatus is lowered. is there.
- the present invention has been made in view of the above problems, and is capable of conveying a workpiece by a moving spindle that moves between a supply position and an unloading position, and capable of machining the workpiece with high efficiency. And to provide a workpiece machining method.
- a moving spindle that moves forward and backward between a workpiece supply position and an unloading position is provided, the workpiece is supplied to the moving spindle at the supply position, and the moving spindle is moved from the supply position to the workpiece.
- the tool post corresponding to the moving spindle is moved.
- the tool post is held on the moving spindle by the tool of the tool post during the transfer movement of the workpiece by the moving spindle.
- the workpiece is processed.
- a workpiece transfer device is disposed at at least one of a workpiece supply position and a workpiece unloading position, and workpieces are exchanged between the moving spindle and the workpiece transfer device at least at one of the workpiece supply position and the workpiece unloading position. Also good. According to this configuration, since the workpiece received by the moving spindle at the workpiece supply position reaches the workpiece unloading position while being processed while the moving spindle and the tool post move together, useless waiting time is eliminated. be able to.
- a spindle may be disposed at each of the workpiece supply position and the workpiece unloading position, and the workpiece may be transferred between the spindle and the moving spindle at the workpiece supply position and the workpiece unloading position.
- a tool post provided with a tool for processing a workpiece gripped on the spindle may be provided corresponding to each of the spindles.
- work grasped by each spindle can be processed with the tool of the tool post provided corresponding to each. Then, the workpiece that has been processed by the spindle on the workpiece supply position side is transferred to the movable spindle at the workpiece supply position, conveyed while being processed by the movable spindle, transferred to the spindle at the workpiece unloading position, and further processed by the spindle. It becomes possible to do. Also, for example, when the workpiece machining time on the spindle at the workpiece unloading position is longer than the workpiece machining time on the moving spindle, the workpiece can be machined on the moving spindle using the standby time of the moving spindle. Thus, the dead time can be further shortened.
- the method of the present invention has a moving spindle that moves forward and backward between a workpiece supply position and an unloading position, supplies the workpiece to the moving spindle at the supply position, and moves the moving spindle from the supply position to the unloading position.
- the workpiece machining method in the workpiece machining apparatus for conveying the workpiece from the supply position to the unloading position by unloading the workpiece from the moving spindle at the unloading position, the workpiece is provided on the moving spindle and moves integrally with the moving spindle.
- a tool post for processing the workpiece gripped by the moving spindle while moving with respect to the moving spindle is prepared, and is held on the moving spindle by the tool of the tool post during the transfer movement of the workpiece by the moving spindle. Machining of the workpiece.
- a workpiece transfer device is prepared at at least one of a workpiece supply position and a workpiece unloading position, and workpieces are exchanged between the moving spindle and the workpiece transfer device at least at one of the workpiece supply position and the workpiece unloading position. Also good.
- a spindle that is arranged at each of the workpiece supply position and the workpiece unloading position and that transfers workpieces to and from the moving spindle is prepared, and the workpiece is transferred from the spindle to the moving spindle at the workpiece supply position. May be processed while moving on the moving main shaft, and the workpiece after the processing may be transferred to the main shaft at the workpiece unloading position.
- a tool post corresponding to each of the main spindles is provided, and after a work gripped on the main spindle is processed by a tool attached to the tool post, the workpiece is transferred from the main spindle to the moving main spindle at the workpiece supply position.
- the workpiece transferred from the moving spindle to the spindle at the workpiece unloading position may be processed with a tool mounted on the tool post.
- the moving spindle and the tool post can be integrated, and the workpiece can be processed while moving from the workpiece supply position to the workpiece unloading position.
- the workpiece can be immediately transferred to another spindle or workpiece unloading device at the workpiece unloading position. Therefore, it is possible to shorten the standby time and increase the operating rate of the workpiece machining apparatus.
- FIG. 1 is a perspective view illustrating an overall configuration according to an embodiment of a workpiece machining apparatus of the present invention. It is a top view of the workpiece
- FIG. 3 is a view (partial cross-section) taken along the line II in FIG. It is a principal part schematic block diagram of NC apparatus. It is a flowchart for demonstrating an example of an effect
- 1 is a schematic plan view of a workpiece machining apparatus according to an embodiment of a workpiece machining method using the workpiece machining apparatus of the present invention.
- FIG. 1 is a schematic plan view of a workpiece machining apparatus according to an embodiment of a workpiece machining method using the workpiece machining apparatus of the present invention. It is a schematic plan view explaining other embodiment of the workpiece
- FIG. 1 is a perspective view illustrating an overall configuration of a workpiece machining apparatus according to an embodiment of the present invention
- FIG. 2 is a plan view of the workpiece machining apparatus in FIG. 1
- FIG. 3 is a II direction in FIG. It is an arrow view (partial cross section).
- the first spindle stock 1 provided on the upper surface of the bed 4 of the workpiece machining apparatus includes a spindle head 11, a moving table 13, and a base 10.
- the spindle head 11 supports the first spindle 12 so as to be rotatable.
- a motor that rotates the first spindle 12 around the axis is incorporated in the spindle head 11.
- a chuck for gripping a workpiece is provided at the tip of the first spindle 12.
- the moving table 13 supports the spindle head 11.
- a Z-direction guide 13 a laid in the Z direction parallel to the main shaft axis is integrally fixed to the bottom surface side of the movable table 13.
- a carriage (not shown) that is slidably mounted on the Z-direction guide 13a is fixed to the base 10.
- the moving base 13 moves forward and backward in the Z direction with respect to the base 10.
- a motor 14 that moves the moving table 13 forward and backward in the Z direction is integrally attached to the base 10.
- the first spindle 12 moves forward and backward in the Z direction integrally with the spindle head 11 by the movement of the movable table 13 driven by the motor 14.
- a Y-direction guide 54 is laid in the Y direction perpendicular to the spindle axis and in the horizontal plane above the tip end side of the spindle 12 of the first spindle stock 1.
- a saddle 53 is attached to the Y-direction guide 54 so as to be movable back and forth.
- An X-direction guide 52 is laid on the saddle 53 in the vertical X direction perpendicular to the Y direction and the Z direction.
- a tool post body 51 is attached to the X-direction guide 52 so as to be movable forward and backward.
- the saddle 53 and the tool post main body 51 constitute a first tool post 5 corresponding to the first main shaft 12.
- the first tool rest 5 is integrally provided on the first headstock 1 so as to be movable in the Y direction and the X direction.
- the tool rest main body 51 is composed of a comb tooth tool rest on which a plurality of tools T for processing a workpiece are arranged and mounted in the Y direction.
- a tool to be used for processing can be determined from a plurality of tools T mounted on the first tool post 5.
- the work held by the chuck and held by the first main spindle 12 is moved by the indexed tool. Can be processed.
- the first spindle stock 1 is integrally provided with the first spindle 12 that is movable back and forth in the Z direction and the first tool rest 5 that is movable in the Y direction and the X direction.
- a first machining unit MU1 is configured. The first machining unit MU1 can independently process the workpiece held on the first spindle 12.
- the Z direction guide 13a is integrally fixed to the bottom surface side of the movable table 13, the Z direction guide 13a moves integrally with the movable table 13 with respect to the base 10, and the cutting waste during workpiece machining Is prevented from being scattered on the Z-direction guide 13a, and it is not necessary to install a cutting dust scattering prevention cover or the like on the Z-direction guide 13a, so that the size in the Z direction can be reduced.
- the second spindle stock 2 and the third spindle stock 3 provided on the upper surface of the bed 4 are also the bases 20 and 30, the second spindle 22 and the spindle head 21.
- Third spindle 32 and spindle head 31 moving bases 23 and 33, Z-direction guides 23a and 33a, carriage (the carriage of the second spindle base 2 is indicated by reference numeral 23b in FIG. 3) and motor 24,
- the second main shaft 22 and the third main shaft 32 are moved forward and backward in the Z direction by the movement of the moving bases 23 and 33 driven by the motors 24 and 34, respectively.
- the second tool post 6 corresponding to the second main spindle 22 and the third tool post 7 corresponding to the third main spindle 32 are also provided in the Y direction guides 64 and 74.
- Saddles 63 and 73 that move forward and backward in the Y direction while being guided by the tool, and turret body bodies 61 and 71 that move up and down while being guided by the X direction guides 62 and 72, and the second headstock 2 and the third headstock 3. are integrally provided to be movable in the Y direction and the X direction.
- the second machining unit MU2 and the third machining unit MU3 are configured by the configuration of the second spindle stock 2 and the third spindle stock 3.
- the tool holder held by the chuck and held by the second spindle 22 and the workpiece held by the chuck and held by the third spindle 32 by the second machining unit MU2 and the third machining unit MU3 Each of them can be processed independently and independently by tools mounted on the main body 61 and the tool post main body 71.
- the tool used for processing can be determined by moving the tool post main bodies 61 and 71 in the Y direction.
- the three processing units MU1, MU2, and MU3 have the same structure.
- the bases 10 and 30 are adjacent to each other so that the main shaft axis of the first main shaft 12 and the main shaft axis of the third main shaft 32 are parallel to each other. 4 is fixed and installed.
- a Y-direction guide 25a is laid in the Y direction at a position opposite to the first processing unit MU1 and the third processing unit MU3.
- a saddle 25 is attached to the Y-direction guide 25a so as to be movable back and forth.
- the base 20 is fixed to the saddle 25 so that the main axis of the second main axis 22 is parallel to the main axes of the first main axis 12 and the third main axis 32. Therefore, the second main shaft 22 can move forward and backward in the Y direction together with the second machining unit MU2.
- the second machining unit MU2 is opposed to the first machining unit MU1 and the third machining unit MU3 so that the tips of the second spindle 22 are opposed to the tips of the first spindle 12 and the second spindle 32.
- the second main shaft 22 constitutes a “moving main shaft”.
- the second main shaft 22 can be opposed to the first main shaft 12 or the third main shaft 32 on the same main shaft axis line by the movement of the second main shaft 22 in the Y direction.
- the first main shaft 12 and the second main shaft 22 By positioning the first main shaft 12 and the second main shaft 22 so as to face each other, by moving the first main shaft 12 and the second main shaft 22 in the Z direction so as to approach each other by the moving bases 13 and 23, Work can be exchanged between the first main spindle 12 and the second main spindle 22.
- the second main shaft 22 and the third main shaft 32 are positioned to face each other, and the second main shaft 22 and the third main shaft 32 are moved in the Z direction so as to approach each other by the moving bases 23 and 33.
- the workpiece can be transferred between the third spindle 32 and the second spindle 22. Since the entire second machining unit MU2 moves in the Y direction as described above, the second machining unit MU2 moves the workpiece held by the second spindle 22 during the movement in the Y direction. Processing can be performed independently.
- a Y-direction guide 84 is laid on the bed 4 in the Y direction between the first processing unit MU1, the third processing unit MU3, and the second processing unit MU2.
- a saddle 83 is attached to the Y-direction guide 84 so as to move forward and backward.
- a Z-direction guide 82 is laid in the Z direction on the upper surface of the saddle 83.
- a tool post body 81 is attached to the Z-direction guide 82 so as to be movable forward and backward.
- the saddle 83 and the tool post body 81 constitute a fourth tool post 8.
- the fourth tool post 8 is located between the first processing unit MU1, the third processing unit MU3, and the second processing unit MU2 so as to be movable back and forth in the Y direction and the Z direction.
- a tool T for machining a workpiece is mounted on the workpiece.
- the fourth tool post 8 corresponds to any of the first main shaft 12, the second main shaft 22, and the third main shaft 32 by movement in the Y direction, and Z with the main shaft corresponding to the movement in the Y direction.
- a workpiece held on the spindle can be machined by relative movement in the direction.
- the tool T mounted on the tool post main body 81 is a single drill (rotating) facing the workpiece gripped by the first spindle 12 or the workpiece gripped by the third spindle 32. Tool), but it is also possible to attach the tool to the side facing the work gripped by the second main spindle 22. Further, a plurality of tools can be mounted, and it is possible to mount a cutting tool such as a cutting tool as well as a rotating tool.
- the Y direction guide 84 is used as the Z-direction guides 13a, 23a of the machining units MU1, MU2, MU3 so that the main shafts 12, 22, 32 do not interfere with each other.
- 33a is provided at a relatively low position.
- the first main shaft 12, the third main shaft 32, and the second main shaft 22 are disposed at opposing positions with the Y-direction guide 84 interposed therebetween, and the first main shaft 12, the second main shaft 22,
- the third main shaft 32 can be moved back and forth in the Z direction above the Y direction guide 84.
- FIG. 4 shows the configuration of the NC device.
- the NC device 100 includes an interference check for checking interference when a moving body such as the first main spindle 12 to the third main spindle 32 and the first tool post 5 to the fourth tool post 7 move.
- a section 110 is provided.
- the interference check unit 110 includes a mobile object to be subjected to interference check and at least the X direction, Y direction, and Z direction of the mobile body. It is necessary to input and set the movement axis corresponding to the movement.
- the Z-axis moving axis of the first main spindle 12 is the Z1 axis, and the first tool rest 5 is moved in the X and Y directions.
- the movement axes in the Y direction and Z direction will be described as Y4 axis and Z4 axis.
- the X1 axis is input as the movement axis in the X direction with respect to one tool post 5
- the Yl axis is input as the movement axis in the Y direction
- the Y4 axis is input as the movement axis in the Y direction with respect to the fourth tool rest 8
- the Z The Z4 axis is input and set as the direction movement axis.
- the interference check unit 110 includes a plurality of (two or more) moving means for one moving direction of one moving body like the second tool post 6, one movement of one moving body is performed. Combining the respective movement amounts on a plurality of movement axes (Y2 axis and A2 axis in the second tool post 6) inputted with respect to the direction, the absolute movement amount of the movable body in the movement direction is calculated.
- An absolute movement amount calculation unit 120 is provided in cooperation.
- a determination unit 140 is provided in the interference check unit 110, and the determination unit 140 moves a moving body in the same axial direction with respect to one moving body from a plurality of input movement axes.
- the absolute movement amount calculation unit 120 may combine the movement amounts of the movement axes when it is determined that there are a plurality of the movement axes.
- the determination unit 140 may be provided in the absolute movement amount calculation unit 120 or may be provided separately from the interference check unit 110 and the absolute movement amount calculation unit 120.
- the absolute movement amount calculation unit 120 includes the movement amount on the Y2 axis of the second tool rest 6 relative to the saddle 25 by the moving means of the second tool rest 6 in the Y2 axis direction, and the A2 of the saddle 25.
- a virtual movement axis (Y direction virtual axis) of the second tool post 6 with respect to the bed 4 is formed, and this Y direction virtual axis
- the absolute movement amount (that is, the position on the coordinates) of the second tool post 6 is obtained.
- the absolute movement amount can be determined in advance with reference to a predetermined reference position of the workpiece machining apparatus, for example, the end reference surface of the machine tool or the center of the first spindle 1.
- the movement amount of the second tool post 6 on the Y-direction virtual axis obtained by the absolute movement amount calculation unit 120 is input to the interference check unit 110, so that the second tool post 6 and another moving object are obtained.
- interference with a fixed structure or the like can be checked.
- step S ⁇ b> 1 the moving object to be subjected to interference check and its movement axis are input to the interference check unit 110.
- the second main shaft 22, the second tool post 6 and the fourth tool post 8 may interfere with each other, the second main shaft 22, the second tool post 6 and the fourth tool post 6
- Each movement axis of the tool post 8 is input to the interference check unit 110.
- the A2 axis is input as the Y-direction movement axis of the second main spindle 22, and the Y2 axis and the A2 axis are input as the Y-direction movement axes of the second tool post 6.
- the first main shaft 12, the first tool post 5 and the fourth tool post 8 may interfere with each other, the first main shaft 12, the first tool post 5 and the fourth tool post 8 are used.
- the third main shaft 32, the third tool post 7 and the fourth tool post 8 may interfere with each other, the third main shaft 32, the third tool post 7 and the fourth tool post are used. 8 movement axes are input to the interference check unit 110.
- step S2 it is determined whether there are a plurality of movement axes for moving the same moving body in the same axial direction.
- the determination unit 140 can be configured to automatically perform the determination based on the input result. Further, without providing the determination unit 140, the operator may determine and input to the interference check unit 110 so that a plurality of the movement axes are input to the absolute movement amount calculation unit 120.
- the Y2 axis and the A2 axis input as the movement axis of the second tool post 4 are in the same axial direction, the Y2 axis and the A2 axis as two movement axes in the same axial direction for the second tool post 4 Is determined to exist.
- the absolute movement amount calculation unit 120 uses one movement axis from the plurality of movement axes.
- a virtual axis is provided.
- the absolute movement amount calculation unit 120 is a virtual Y direction movement axis (Y direction virtual axis) obtained by combining the Y2 axis and the A2 axis from the A2 axis and the Y2 axis that are the movement axes of the second tool post 4. ) Provide Y2 'axis.
- step S4 If it is determined in step S2 that there are not a plurality of moving axes for moving the same moving body in the same axial direction, the process proceeds to the next step S4 without providing a virtual axis.
- the interference check unit 110 performs an interference check based on the movement amount of each movement axis and the absolute movement amount on the virtual axis.
- FIG. 6 shows an example of an interference check between the second tool post 6 and the fourth tool post 8 in which the Y2 ′ axis that is the Y-direction virtual axis is set.
- An interference check region region 6a surrounded by a dotted line
- An interference check region including the fourth tool post 8 and the tool T attached thereto A region 8a) surrounded by a dotted line is set in advance.
- the interference check unit 110 will It is determined that interference occurs between the tool post 6 and the fourth tool post 8, and the movement of the second tool post 6 and the fourth tool post 8 is restricted, and an interference or the like is generated. Inform. In this way, in the present invention, a plurality of moving means are provided for one moving direction of one moving body by linking the interference check unit 110 and the absolute movement amount calculating unit 120. In addition, it is possible to easily check the interference of the moving body.
- the workpiece machining apparatus having the above-described configuration supplies an unmachined workpiece to one of the first spindle 12, the second spindle 22, and the third spindle 32, or carries a machined workpiece from any of them.
- a workpiece transfer device may be provided. As long as the workpiece transfer device can transfer workpieces without interference with the first spindle 12, the second spindle 22, or the third spindle 32, various workpiece transfer devices such as a robot arm and a loader are used. be able to.
- a work transfer device is provided corresponding to each of the first main shaft 12, the second main shaft 22, and the third main shaft 32.
- the workpiece transfer device 93 that exchanges workpieces with the second spindle 22 will be described.
- the configuration of the workpiece transfer device 91 that transfers workpieces to and from the first spindle 12 and the workpiece transfer device 92 that transfers workpieces to and from the third spindle 32 are the same as those of the workpiece transfer device 93. Because there is, detailed explanation is omitted.
- the workpiece transfer device 93 includes a base 930, a link mechanism 931, a base 932, a slider 933, and a chuck 934.
- the base 930 is attached to the bed 4.
- the link mechanism 931 is composed of a parallel link including a rotating arm 931a and a support arm 931b.
- the rotation arm 931a is supported on the base 930 so as to be rotatable and driven on the base end side.
- the support arm 931b is supported on the base 930 in a swingable manner at the base end side.
- the base 932 is supported at the tips of the rotating arm 931a and the support arm 931b.
- the turning of the turning arm 931a is performed by, for example, a rotating cylinder.
- the base 932 moves back and forth in parallel to the Y direction by the rotation of the rotating arm 931a.
- the slider 933 is attached to the base 932 so as to be slidable in the Y direction.
- a slide drive mechanism for the slider 933 is interposed between the slider 933 and the base 932.
- the slider 933 moves forward and backward in the Y direction by the slide drive mechanism.
- the chuck 934 is provided at the tip of the slider 933 and grips a workpiece.
- the chuck 934 moves back and forth in the Y direction in two stages: Y-direction movement along the arc-shaped locus of the base 932 due to rotation of the rotation arm 931a and linear movement of the slider 933 by the slide drive mechanism. I do.
- the work transfer device 93 can suppress the size in the height direction and the Y direction in the storage state.
- the supply of the unprocessed workpiece to the chuck 934 can be performed by a workpiece supply device such as a parts feeder (not shown).
- the processed workpiece can be taken out from the chuck 934 with a robot hand (not shown) or the like.
- a workpiece transfer device 91 that can transfer workpieces to and from the first spindle 12
- a workpiece transfer device 92 that can transfer workpieces to and from the third spindle 32
- the third spindle 3 it is assumed that three workpiece transfer devices 91, 92, and 93 of the workpiece transfer device 93 that can transfer workpieces to and from the second main shaft 32 at a position opposite to are provided.
- the workpiece W is gripped by the first spindle 12 and the third spindle 32, and the workpiece W of the first spindle 12 is processed by the tool T of the first tool rest 5,
- the workpiece W of the spindle 32 is processed by the tool T of the third tool rest 7 and the tool T of the fourth tool rest 8.
- the second machining unit MU2 stands by at a position facing the first machining unit MU1 so that the second spindle 22 is positioned on the spindle axis of the first spindle 12.
- a workpiece W to be processed next by the first processing unit MU1 is prepared in the workpiece transfer device 91.
- the first main shaft 12 and the second main shaft 22 move in the Z-direction approaching each other, as shown in FIG.
- the workpiece W that has been processed by the first processing unit MU1 is delivered to the second spindle 22 at a substantially intermediate point between the unit MU1 and the second processing unit MU2.
- the first spindle 12 After the completion of the delivery, as shown in (c), the first spindle 12 returns to the position where the workpiece W to be machined next is to be received from the workpiece conveyance device 91, and the second machining unit MU2 performs the second machining unit MU2.
- the spindle 22 returns to the machining position for machining the received workpiece W, and machining of the workpiece W by the tool T attached to the second tool post 6 is started.
- the second machining unit MU2 moves in the Y direction toward the position opposite to the third spindle 32 during machining of the workpiece W gripped by the second spindle 22. Carry the transfer.
- the timing at which the second machining unit MU2 is moved in the Y direction is, for example, at the same time or immediately after the second spindle 22 returns to the machining position and before the machining of the workpiece W gripped by the third spindle 32 is completed. Alternatively, it may be at the same time as or after the end of processing, immediately before or after the start of transfer of the processed workpiece W between the third main spindle 32 and the workpiece transfer device 92.
- the second spindle is placed on the spindle axis of the third spindle 32. It is desirable that the second spindle 22 is positioned.
- the second main shaft 22 and the third main shaft 32 face each other on the same main shaft axis, and the processing of the workpiece W is finished on the second main shaft 22, and the third main shaft is finished.
- the workpiece W processed at 32 is unloaded by the workpiece transfer device 92, the second main shaft 22 and the third main shaft 32 move in the Z-direction approaching each other as shown in FIG. 8B.
- the workpiece W that has been processed by the second main shaft 22 is transferred to the third main shaft 32 at a substantially intermediate point between the third processing unit MU3 and the second processing unit MU2.
- the first spindle 12 constitutes the “spindle” arranged at the “work supply position”
- the third spindle 32 constitutes the “spindle” arranged at the “work carry-out position”.
- the fourth tool post 8 is positioned so as not to interfere with the second and third processing units MU2, 3 side. evacuate. For example, as shown in the drawing, it is retracted to a substantially intermediate position between the first machining unit MU1 and the third machining unit MU3.
- the third spindle 32 After the delivery of the workpiece W from the second spindle 23 to the third spindle 33 is completed, the third spindle 32 returns to the workpiece machining position where the workpiece W is machined, as shown in FIG. Further, the second main shaft 22 returns to a position where it can move in the Y direction. Further, the fourth tool rest 8 returns to a position facing the third main shaft 32. Then, in the third processing unit MU3, the processing of the workpiece W is started by the tool T mounted on the third tool post 7 and the tool T mounted on the fourth tool post 8. The second machining unit MU2 moves to the position facing the first machining unit MU1 in the Y direction, and returns to the initial state (the state shown in FIG. 7A). Thereafter, the procedure shown in FIGS. 7B to 8C is repeated.
- the second machining unit MU2 also serves as a workpiece transfer unit, and the workpiece W is machined from the first machining unit MU1 to the third machining unit MU3 by the second spindle 22. Therefore, it is not necessary to transfer the workpiece W after the processing of the workpiece W in the second processing unit MU2 is finished. This improves the machining efficiency of the workpiece. Further, by mounting three processing units MU1, MU2, and MU3 having the same configuration on one bed 4, a workpiece processing apparatus (machine tool) including a workpiece transfer system can be easily constructed.
- each processing unit MU1, MU2, MU3 can be changed according to processing.
- the workpiece that has been processed in the third processing unit MU3 is transferred from the third main shaft 32 to the second main shaft 22, and the work transferred to the second main shaft 22 is processed by the second processing unit MU2.
- it can also be configured such that it is transported toward the first main spindle 12, transferred to the first main spindle 12, processed by the first processing unit MU1, and carried out.
- FIG. 9 and 10 are diagrams showing an embodiment of another processing method. 9 and 10, the work flow is indicated by arrows.
- the second processing unit MU2 at a position facing the third processing unit MU3 is indicated by a virtual line.
- the first spindle 12 receives an unmachined workpiece from the workpiece transfer device 91 (arrow (i)) and performs machining with a tool mounted on the first tool rest 5.
- the third spindle 32 also receives an unmachined workpiece from the workpiece transfer device 92 (dotted arrow (I)) and performs machining with a tool mounted on the third tool post 7.
- the second spindle 22 receives a workpiece that has been machined from the first spindle 12 in the same procedure as before (arrow (ii)), and in the second machining unit MU2.
- the workpiece is processed while moving in the Y direction (arrow (iii)).
- the workpiece processed by the second processing unit MU2 is unloaded from the second spindle 22 by the workpiece transfer device 93 at a position facing the third processing unit MU3 (arrow (iv )).
- the workpiece machined by the third machining unit MU3 is transferred to the second spindle 22 after the machined workpiece is carried out by the workpiece carry-out device 93 (dotted arrow (II)).
- the workpiece transferred to the second main spindle 22 is processed by the second processing unit MU2 and then unloaded by the workpiece unloading device 93 (dotted arrow (III)).
- the second processing unit MU2 returns to the position facing the first processing unit MU1, and returns to the initial state shown in FIG.
- the first spindle 12 constitutes the “spindle” provided at the “work supply position”
- the work transfer device 93 constitutes the “work transfer device” provided at the “work carry-out position”. To do.
- the second machining unit MU2 is moved in the Y direction so that the workpiece can be transferred to and from the second machining unit MU2 located at a position facing the first machining unit MU1.
- a fourth workpiece transfer device 94 is provided at the opposite end of the workpiece transfer device 93 in the movement path.
- an unprocessed workpiece (arrow (i)) received from the workpiece transfer device 93 at a position facing the third machining unit MU3 is opposed to the third machining unit MU3 by the second machining unit MU2.
- Processing is performed while moving in the Y direction from the position to a position facing the first processing unit MU1 (arrow (ii)), and the processed workpiece is transferred to the first spindle 12 (arrow (iii)).
- the workpiece received from the second spindle 22 is machined by one machining unit MU1, and the workpiece after machining is unloaded by the workpiece transfer device 91 (arrow (iv)).
- an unmachined workpiece is delivered from the workpiece transfer device 94 to the second spindle 22 at a position facing the first machining unit MU1.
- the second machining unit MU2 moves in the Y direction from the position facing the first machining unit MU1 to the position facing the third machining unit MU3 while machining the received workpiece (dotted arrow (II)).
- the processed workpiece is transferred from the second main shaft 22 to the third main shaft 32 (dotted arrow (III)) and processed by the third processing unit MU3.
- the workpiece that has been processed by the third processing unit MU3 is unloaded by the workpiece transfer device 92 (dotted arrow (IV)).
- the first main shaft 12 and the third main shaft 32 constitute a “main shaft” provided at the “work carry-out position”, and the work transfer devices 93 and 94 are provided at the “work supply position”. Constitutes a "work transfer device”.
- the fourth workpiece transfer device can be used so that workpieces can be transferred to and from the second processing unit MU2 located at a position facing the first processing unit MU1.
- 94 is provided.
- the flow of workpieces (i) to (v) indicated by solid arrows is the same as the flow of workpieces shown in FIGS.
- an unprocessed workpiece is transferred from the workpiece transfer device 93 to the second spindle 22 (dotted arrow (I)).
- the machining unit MU2 moves in the Y direction from the position facing the third machining unit MU3 to the position facing the first machining unit MU1 while machining the received workpiece (dotted arrow (II)). Then, the workpiece that has been processed at a position facing the first processing unit MU1 is transferred to the workpiece transfer device 94 (dotted arrow (III)).
- This example is effective when the workpiece machining time in the first machining unit MU1 is relatively long and the waiting time of the second machining unit MU2 after delivering the workpiece to the third machining unit MU3 is long.
- the first spindle 12 constitutes a “spindle” provided at the “work supply position”
- the work conveyance device 93 constitutes a “work conveyance apparatus” provided at the “work supply position”.
- the third spindle 32 constitutes a “spindle” provided at the “work carry-out position”
- the work transfer device 94 constitutes a “work transfer device” provided at the “work carry-out position”.
- the flow of workpieces (i) to (iv) indicated by solid arrows and (I) to (II) indicated by dotted arrows are the same as the flow of workpieces shown in FIG. 9A. It is. However, in this example, after the workpiece machined by the third machining unit MU3 is transferred to the second spindle 22, the second machining unit MU2 is moved from the position facing the third machining unit MU3 to the second machining unit MU3. The workpiece is machined while moving in the Y direction to a position facing one machining unit MU1 (dotted arrow (III)). Then, the processed workpiece is transferred from the second spindle 22 to the workpiece transfer device 94 (dotted arrow (IV)).
- the first main shaft 12 and the third main shaft 32 constitute a “main shaft” provided at the “work supply position”, and the work conveying devices 93 and 94 are provided at the “work carry-out position”. "Work transfer device" is configured.
- the present invention is not limited by the above-described embodiment.
- the second machining unit MU2 includes a step of machining the workpiece of the second spindle 22 while the workpiece gripped by the second spindle 22 is being conveyed, any workpiece machining pattern can be obtained.
- the first turret 5, the second turret 6, and the third turret 7 are assumed to be comb-shaped turrets. It may be.
- a work transfer device such as a robot arm or a loader may be provided instead of one or both of the first main spindle 12 and the third main spindle 32.
- the present invention can be widely applied to a multi-axis workpiece machining apparatus that sequentially performs a number of machining operations on one workpiece.
- First headstock 10 Base 11: Main spindle 12: First main spindle 13: Moving base 13a: Z direction guide 14: Motor 2: Second main spindle 20: Base 21: Main spindle 22: Second spindle (moving spindle) 23: Moving table 23a: Z direction guide 23b: Carriage 24: Motor 25: Saddle 25a: Y direction guide 3: Third spindle table 30: Base 31: Spindle head 32: Third spindle 33: Moving table 33a: Z direction guide 34: motor 4: bed 5: first tool post 51: tool post main body 52: X direction guide 53: saddle 54: Y direction guide 6: second tool post 61: tool post main body 62: X direction Guide 63: Saddle 64: Y direction guide 7: Third tool post 71: Tool post main body 72: X direction guide 73: Saddle 74: Y direction guide 8: Fourth tool post 81: Tool post main body 82: Z direction Guide 83: Saddle 84: Y direction guides 91, 92, 93
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Abstract
Description
本発明は、上記の問題に鑑みてなされたもので、供給位置と搬出位置との間を移動する移動主軸によりワークの搬送を行うとともに、高い効率でワークの加工を行うことのできるワーク加工装置及びワーク加工方法の提供を目的とする。
この構成によれば、ワーク供給位置で移動主軸に受け取ったワークを、移動主軸と刃物台とが一体になって移動しつつ加工を行いながらワーク搬出位置に到達するので、無駄な待機時間を無くすことができる。
この場合、前記主軸に把持したワークを加工する工具を備えた刃物台を、前記主軸の各々に対応して設けてもよい。
また、例えば、ワーク搬出位置の主軸でのワークの加工時間が移動主軸におけるワークの加工時間より長い場合に、移動主軸の待機時間を利用して前記移動主軸でワークの加工を行うことが可能になり、無駄時間をより短くすることができる。
ワーク供給位置又はワーク搬出位置の少なくとも一方にワーク搬送装置を準備し、ワーク供給位置又はワーク搬出位置の少なくとも一方で、前記移動主軸と前記ワーク搬送装置との間でワークの授受を行うようにしてもよい。
なお、Z方向ガイド13aが移動台13の底面側に一体的に固定されているため、移動台13と一体的にZ方向ガイド13aが基台10に対して移動し、ワーク加工時の切削屑がZ方向ガイド13aに飛散すること等が防止され、Z方向ガイド13aへの切削屑飛散防止カバー等の設置が不要となり、Z方向のサイズを小さく抑制することができる。
また、前記第一の刃物台5と同様に、第二の主軸22に対応する第二の刃物台6及び第三の主軸32に対応する第三の刃物台7も、Y方向ガイド64,74に案内されながらY方向に進退移動するサドル63,73、X方向ガイド62,72に案内されながら昇降する刃物台本体61,71から構成され、第二の主軸台2及び第三の主軸台3にY方向及びX方向に移動自在に一体的に設けられている。
第二の加工ユニットMU2及び第三の加工ユニットMU3により、チャックに把持されて第二の主軸22に保持されたワーク及びチャックに把持されて第三の主軸32に保持されたワークを、刃物台本体61及び刃物台本体71に装着された工具によって各々独立して別々に加工することができる。加工に使用する工具は、刃物台本体61,71をY方向に移動させることによって割り出すことができる。
前記のように三つの各加工ユニットMU1,MU2,MU3は同一構造をなす。
ベッド4の上面には、第一の加工ユニットMU1及び第三の加工ユニットMU3の対向位置に、Y方向ガイド25aがY方向に敷設されている。該Y方向ガイド25aに、進退移動自在にサドル25が取り付けられている。第二の加工ユニットMU2は、第二の主軸22の主軸軸線が第一の主軸12及び第三の主軸32の主軸軸線と平行になるように、基台20がサドル25に固定されている。従って、第二の主軸22は、第二の加工ユニットMU2とともにY方向に進退移動自在である。第二の加工ユニットMU2は、第二の主軸22の先端が第一の主軸12及び第二の主軸32の先端と対向するように、第一の加工ユニットMU1及び第三の加工ユニットMU3の対向側に配置されている。この実施形態では、第二の主軸22が「移動主軸」を構成する。
なお、前記のように第二の加工ユニットMU2の全体がY方向に移動するため、第二の加工ユニットMU2は、Y方向への移動中に、第二の主軸22に保持されているワークの加工を独立して行うことができる。
図4にNC装置の構成を示す。この実施形態のNC装置100には、第一の主軸12~第三の主軸32と、第一の刃物台5~第4刃物台7等の移動体が移動する際の干渉をチェックする干渉チェック部110が設けられている。干渉チェック部110に前記各移動体の情報を入力することによって、各移動体が加工移動等を行う際の各移動体同士の干渉や、移動体と加工装置の固定的な構造物との干渉等をチェックし、干渉の有無を検出することができる。
なお、以下の説明において、各移動体の移動軸を個別に記載する場合は、第一の主軸12のZ方向の移動軸をZ1軸、第一の刃物台5のX方向及びY方向の移動軸をX1軸,Y1軸、サドル25のY方向の移動軸をA2軸、第二の主軸22のZ方向の移動軸をZ2軸、第二の刃物台6のX方向及びY方向の移動軸をX2軸,Y2軸、第三の主軸32のZ方向の移動軸をZ3軸、第三の刃物台7のX方向及びY方向の移動軸をX3軸,Y3軸、第四の刃物台8のY方向及びZ方向の移動軸をY4軸,Z4軸として説明する。
図4に示すように、干渉チェック部110に判断部140を設け、この判断部140が、入力された複数の移動軸の中から、一つの移動体について同じ軸線方向に移動させるための移動軸が複数存在すると判断したときに、絶対移動量算出部120が当該移動軸の各々の移動量を合成するように構成してもよい。もちろん、判断部140は絶対移動量算出部120に設けてもよいし、干渉チェック部110及び絶対移動量算出部120と別体に設けてもよい。
ステップS1において、干渉チェックの対象となる移動体と、その移動軸を干渉チェック部110に入力する。この実施形態では、第二の主軸22,第二の刃物台6及び第四の刃物台8は互いに干渉する可能性があるため、第二の主軸22,第二の刃物台6及び第四の刃物台8の各移動軸を干渉チェック部110に入力する。なお、このとき、第二の主軸22のY方向移動軸としてA2軸を入力し、第二の刃物台6のY方向の移動軸としてY2軸とA2軸とを入力する。また、第一の主軸12,第一の刃物台5及び第四の刃物台8は互いに干渉する可能性があるため、第一の主軸12,第一の刃物台5及び第四の刃物台8の各移動軸を干渉チェック部110に入力する。同様に、第三の主軸32,第三の刃物台7及び第四の刃物台8は互いに干渉する可能性があるため、第三の主軸32,第三の刃物台7及び第四の刃物台8の各移動軸を干渉チェック部110に入力する。
ステップS2で同一の移動体について同一の軸線方向に移動させるための移動軸が複数あると判断した場合は、ステップS3に示すように、絶対移動量算出部120が当該複数の移動軸から一つの仮想軸を設ける。この実施形態では、絶対移動量算出部120は、第2刃物台4の移動軸であるA2軸とY2軸とから、Y2軸とA2軸を合成した仮想のY方向移動軸(Y方向仮想軸)Y2′軸を設ける。そして、第2刃物台4のY方向の二つのA2軸,Y2軸が、一つのY方向仮想軸であるY2′軸に置き換えられ、ステップS4に進む。
なお、ステップS2で同一の移動体について同じ軸線方向に移動させるための移動軸が複数存在しないと判断した場合は、仮想軸を設けることなく、次のステップS4に進む。そして、ステップS4で、干渉チェック部110が各移動軸の移動量及び仮想軸における前記絶対移動量から、干渉チェックを行う。
このようにして、本発明では、干渉チェック部110と絶対移動量算出部120との連係により、一つの移動体の一つの移動方向に対して複数の移動手段が設けられている場合であっても、当該移動体の干渉チェックを容易に行うことができる。
ワーク搬送装置は、第一の主軸12,第二の主軸22又は第三の主軸32との間で干渉なくワークの授受ができるのであれば、ロボットアームやローダ等の種々のワーク搬送装置を用いることができる。
次に図7及び図8を参照しながら、上記構成のワーク加工装置を用いたワーク加工の一例を説明する。
なお、以下の説明では、第一の主軸12との間でワークの授受が行えるワーク搬送装置91,第三の主軸32との間でワークの授受が行えるワーク搬送装置92及び第三の主軸3に対向した位置にある第二の主軸32との間でワークの授受が行えるワーク搬送装置93の三台のワーク搬送装置91,92,93が設けられているものとして説明する。
第一の加工ユニットMU1におけるワークWの加工が終了すると、第一の主軸12及び第二の主軸22がZ方向の互いに接近する方向に移動し、(b)に示すように、第一の加工ユニットMU1と第二の加工ユニットMU2の概ね中間地点で、第一の加工ユニットMU1での加工の終了したワークWが第二の主軸22に受け渡される。
なお、前記第二の主軸23から第三の主軸33へのワークWの受け渡しの際には、第四の刃物台8は、第二及び第三の加工ユニットMU2,3側と干渉しない位置に退避する。例えば、図示のように、第一の加工ユニットMU1と第三の加工ユニットMU3との間のほぼ中間位置まで退避する。
以後、図7(b)~図8(c)の手順が繰り返される。
また同一構成の3つの加工ユニットMU1,MU2,MU3を1つのベッド4上に搭載することによって、ワークの搬送システムを備えたワーク加工装置(工作機械)を簡単に構築することができる。この構成により各加工ユニットMU1,MU2,MU3における加工に対するベッドの熱変位やベッドの設置床の変位等の悪影響が少なく、加工精度を向上させることができる。各加工ユニットMU1,MU2,MU3のレイアウトは、加工に応じて変更することもできる。
図9(a)の例では、第一の主軸12がワーク搬送装置91から未加工のワークを受け取り(矢印(i))、第一の刃物台5に装着した工具で加工を行う。また、第三の主軸32も、ワーク搬送装置92から未加工のワークを受け取り(点線矢印(I))、第三の刃物台7に装着した工具で加工を行う。
一方、第三の加工ユニットMU3で加工されたワークは、加工済みワークがワーク搬出装置93によって搬出された後の第二の主軸22に受け渡される(点線矢印(II))。第二の主軸22に受け渡されたワークは、第二の加工ユニットMU2で加工された後、ワーク搬出装置93によって搬出される(点線矢印(III))。この後、第二の加工ユニットMU2は、第一の加工ユニットMU1に対向した位置まで復帰し、図9(a)に示す初期の状態に戻る。
なお、この例では、第一の主軸12が「ワーク供給位置」に設けられた「主軸」を構成し、ワーク搬送装置93が、「ワーク搬出位置」に設けられた「ワーク搬送装置」を構成する。
この例では、第三の加工ユニットMU3に対向する位置でワーク搬送装置93から受け取った未加工のワーク(矢印(i))を、第二の加工ユニットMU2によって第三の加工ユニットMU3に対向する位置から第一の加工ユニットMU1に対向する位置までY方向に移動しながら加工を行い(矢印(ii))、加工の終了したワークを第一の主軸12に受け渡す(矢印(iii)。第一の加工ユニットMU1で第二の主軸22から受け取ったワークを加工し、加工の終了したワークはワーク搬送装置91によって搬出される(矢印(iv))。
加工の終了したワークは、第二の主軸22から第三の主軸32に受け渡され(点線矢印(III))、第三の加工ユニットMU3で加工が行われる。第三の加工ユニットMU3で加工の終了したワークは、ワーク搬送装置92によって搬出される(点線矢印(IV))。
なお、この例では、第一の主軸12及び第三の主軸32が「ワーク搬出位置」に設けられた「主軸」を構成し、ワーク搬送装置93,94が、「ワーク供給位置」に設けられた「ワーク搬送装置」を構成する。
図10(a)の例において、実線矢印で示す(i)~(v)のワークの流れは、図7及び図8で示すワークの流れと同じである。
ただし、第二の主軸22から第三の主軸32にワークを受け渡した後、第二の主軸22にはワーク搬送装置93から未加工のワークが受け渡され(点線矢印(I))、第二の加工ユニットMU2は、受け取ったワークを加工しながら第三の加工ユニットMU3に対向する位置から第一の加工ユニットMU1に対向する位置までY方向に移動する(点線矢印(II))。そして、第一の加工ユニットMU1に対向する位置で加工の終了したワークをワーク搬送装置94に受け渡す(点線矢印(III))。この例では、第一の加工ユニットMU1におけるワークの加工時間が比較的長く、第三の加工ユニットMU3にワークを受け渡した後の第二の加工ユニットMU2の待機時間が長い場合に有効である。
なお、この例では、第一の主軸12が「ワーク供給位置」に設けられた「主軸」を構成し、ワーク搬送装置93が「ワーク供給位置」に設けられた「ワーク搬送装置」を構成する。また、第三の主軸32が「ワーク搬出位置」に設けられた「主軸」を構成し、ワーク搬送装置94が「ワーク搬出位置」に設けられた「ワーク搬送装置」を構成する。
ただし、この例では、第三の加工ユニットMU3で加工されたワークが、第二の主軸22に受け渡された後、第二の加工ユニットMU2が第三の加工ユニットMU3に対向する位置から第一の加工ユニットMU1に対向する位置までY方向に移動しながら、ワークの加工を行う(点線矢印(III))。そして、加工の終了したワークを、第二の主軸22からワーク搬送装置94に受け渡す(点線矢印(IV))。
なお、この例では、第一の主軸12及び第三の主軸32が「ワーク供給位置」に設けられた「主軸」を構成し、ワーク搬送装置93,94が「ワーク搬出位置」に設けられた「ワーク搬送装置」を構成する。
例えば、第二の加工ユニットMU2による第二の主軸22に把持されたワークの搬送中に、第二の主軸22のワークの加工を行う工程を有するようにすれば、どのようなワークの加工パターンでも採用することができ、加工の効率化を図ることができる。
また、上記の実施形態では、第一の刃物台5,第二の刃物台6,第三の刃物台7は櫛刃形の刃物台であることを前提に説明したが、タレット形の刃物台であってもよい。
さらに、上記の第一の主軸12及び第三の主軸32のいずれか一方又は両方に代えて、ロボットアームやローダ等のワーク搬送装置を設けてもよい。
本発明は、一つのワークに多数の加工を順次施す多軸のワーク加工装置に広く適用が可能である。
10:基台
11:主軸頭
12:第一の主軸
13:移動台
13a:Z方向ガイド
14:モータ
2:第二の主軸台
20:基台
21:主軸頭
22:第二の主軸(移動主軸)
23:移動台
23a:Z方向ガイド
23b:キャリッジ
24:モータ
25:サドル
25a:Y方向ガイド
3:第三の主軸台
30:基台
31:主軸頭
32:第三の主軸
33:移動台
33a:Z方向ガイド
34:モータ
4:ベッド
5:第一の刃物台
51:刃物台本体
52:X方向ガイド
53:サドル
54:Y方向ガイド
6:第二の刃物台
61:刃物台本体
62:X方向ガイド
63:サドル
64:Y方向ガイド
7:第三の刃物台
71:刃物台本体
72:X方向ガイド
73:サドル
74:Y方向ガイド
8:第四の刃物台
81:刃物台本体
82:Z方向ガイド
83:サドル
84:Y方向ガイド
91,92,93,94:ワーク搬送装置
T:工具
W:ワーク
MU1:第一の加工ユニット
MU2:第二の加工ユニット
MU3:第三の加工ユニット
Claims (8)
- ワークの供給位置と搬出位置との間を進退移動する移動主軸を有し、前記供給位置で前記移動主軸にワークを供給し、前記移動主軸を前記供給位置から前記搬出位置に移動させ、前記搬出位置で前記移動主軸からワークを搬出することによって、ワークを前記供給位置から前記搬出位置まで搬送するワーク加工装置において、
前記移動主軸に対応する刃物台を、前記移動主軸に一体的に設け、かつ、前記移動主軸に対して移動自在に取り付け、
前記刃物台が、前記移動主軸による前記ワークの搬送移動中に、前記刃物台の工具により前記移動主軸に保持されたワークの加工を行うように構成されていること、
を特徴とするワーク加工装置。 - ワーク供給位置又はワーク搬出位置の少なくとも一方にワーク搬送装置を配置し、ワーク供給位置又はワーク搬出位置の少なくとも一方で、前記移動主軸と前記ワーク搬送装置との間でワークの授受を行うことを特徴とする請求項1に記載のワーク加工装置。
- 前記ワーク供給位置及び前記ワーク搬出位置の各々に主軸を配置し、前記ワーク供給位置及び前記ワーク搬出位置において、前記主軸と前記移動主軸との間で前記ワークの授受を行うように構成したことを特徴とする請求項1に記載のワーク加工装置。
- 前記主軸に把持したワークを加工する工具を備えた刃物台を、前記主軸の各々に対応して設けたことを特徴とする請求項3に記載のワーク加工装置。
- ワークの供給位置と搬出位置との間を進退移動する移動主軸を有し、前記供給位置で前記移動主軸にワークを供給し、前記移動主軸を前記供給位置から前記搬出位置に移動させ、前記搬出位置で前記移動主軸からワークを搬出することによって、ワークを前記供給位置から前記搬出位置まで搬送するワーク加工装置におけるワーク加工方法において、
前記移動主軸に設けられ、前記移動主軸と一体になって移動するとともに、前記移動主軸に対して移動しながら移動主軸に把持されたワークの加工を行う刃物台を準備し、
前記移動主軸によるワークの搬送移動中に、前記刃物台の工具により移動主軸に保持されたワークの加工を行うこと、
を特徴とするワーク加工方法。 - 前記ワーク供給位置又は前記ワーク搬出位置の少なくとも一方にワーク搬送装置を準備し、前記ワーク供給位置又は前記ワーク搬出位置の少なくとも一方で、前記移動主軸と前記ワーク搬送装置との間でワークの授受を行うことを特徴とする請求項5に記載のワーク加工方法。
- 前記ワーク供給位置及び前記ワーク搬出位置の各々に配置され、前記移動主軸との間でワークの授受を行う主軸を準備し、前記ワーク供給位置で前記主軸から前記移動主軸にワークを受け渡し、該ワークを前記移動主軸で移動しつつ加工し、加工の終了した前記ワークを前記ワーク搬出位置で前記主軸に受け渡すことを特徴とする請求項5に記載のワーク加工方法。
- 前記主軸の各々に対応して刃物台を設け、前記刃物台に装着した工具で前記主軸に把持したワークの加工を行った後に、前記ワーク供給位置で前記主軸から前記移動主軸に前記ワークを受け渡し、前記ワーク搬出位置で前記移動主軸から前記主軸に受け渡された前記ワークを前記刃物台に装着した工具で加工することを特徴とする請求項7に記載のワーク加工方法。
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- 2009-07-06 JP JP2010519770A patent/JP5550554B2/ja active Active
- 2009-07-06 KR KR1020117000285A patent/KR101537135B1/ko active IP Right Grant
- 2009-07-06 EP EP09794405.2A patent/EP2305404B1/en active Active
- 2009-07-06 CN CN2009801266743A patent/CN102089102B/zh active Active
- 2009-07-06 ES ES09794405.2T patent/ES2552206T3/es active Active
- 2009-07-06 US US12/737,357 patent/US9266210B2/en active Active
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2551042A4 (en) * | 2010-03-25 | 2016-03-30 | Citizen Holdings Co Ltd | MACHINE TOOL |
US10293409B2 (en) | 2014-06-30 | 2019-05-21 | Citizen Watch Co., Ltd. | Machine tool and workpiece processing system |
KR20170053725A (ko) | 2014-10-07 | 2017-05-16 | 시티즌 도케이 가부시키가이샤 | 공작 기계의 제어 장치 |
JP2019083059A (ja) * | 2014-10-07 | 2019-05-30 | シチズン時計株式会社 | 工作機械およびワーク加工システム |
US10359765B2 (en) | 2014-10-07 | 2019-07-23 | Citizen Watch Co., Ltd. | Control device for machine tool with multi-system programs |
JPWO2016194748A1 (ja) * | 2015-06-02 | 2018-03-22 | シチズン時計株式会社 | 工作機械 |
WO2018180004A1 (ja) | 2017-03-30 | 2018-10-04 | シチズン時計株式会社 | 工作機械の制御装置 |
KR20190134679A (ko) | 2017-03-30 | 2019-12-04 | 시티즌 도케이 가부시키가이샤 | 공작기계의 제어장치(control device for work machine) |
US11054809B2 (en) | 2017-03-30 | 2021-07-06 | Citizen Watch Co., Ltd. | Control device for machine tool |
WO2019188220A1 (ja) * | 2018-03-30 | 2019-10-03 | シチズン時計株式会社 | 工作機械 |
WO2020031608A1 (ja) * | 2018-08-08 | 2020-02-13 | シチズン時計株式会社 | 工作機械 |
CN109454468A (zh) * | 2018-12-29 | 2019-03-12 | 台州宏玺工业设计有限公司 | 一种便于回收冷却液的可移动车床底座 |
Also Published As
Publication number | Publication date |
---|---|
EP2305404A1 (en) | 2011-04-06 |
ES2552206T3 (es) | 2015-11-26 |
US9266210B2 (en) | 2016-02-23 |
TWI505908B (zh) | 2015-11-01 |
EP2305404B1 (en) | 2015-08-26 |
KR20110036731A (ko) | 2011-04-08 |
EP2305404A4 (en) | 2013-07-24 |
US20110158775A1 (en) | 2011-06-30 |
KR101537135B1 (ko) | 2015-07-15 |
JP5550554B2 (ja) | 2014-07-16 |
JPWO2010004961A1 (ja) | 2012-01-05 |
TW201016383A (en) | 2010-05-01 |
CN102089102B (zh) | 2013-05-08 |
CN102089102A (zh) | 2011-06-08 |
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