WO2017017988A1 - テーブル装置、位置決め装置、フラットパネルディスプレイ製造装置、及び精密機械 - Google Patents
テーブル装置、位置決め装置、フラットパネルディスプレイ製造装置、及び精密機械 Download PDFInfo
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- WO2017017988A1 WO2017017988A1 PCT/JP2016/058196 JP2016058196W WO2017017988A1 WO 2017017988 A1 WO2017017988 A1 WO 2017017988A1 JP 2016058196 W JP2016058196 W JP 2016058196W WO 2017017988 A1 WO2017017988 A1 WO 2017017988A1
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- axis
- guide
- preload
- linear bearing
- axis direction
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- 230000036316 preload Effects 0.000 claims description 78
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Images
Classifications
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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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
- B23Q1/60—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism
- B23Q1/62—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides
- B23Q1/621—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides a single sliding pair followed perpendicularly by a single sliding pair
- B23Q1/623—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides a single sliding pair followed perpendicularly by a single sliding pair followed perpendicularly by a single rotating pair
-
- 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
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/40—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using ball, roller or wheel arrangements
-
- 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
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/48—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs
-
- 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
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/56—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism
- B23Q1/60—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism
- B23Q1/62—Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only, the sliding pairs being the first two elements of the mechanism two sliding pairs only, the sliding pairs being the first two elements of the mechanism with perpendicular axes, e.g. cross-slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/008—Systems with a plurality of bearings, e.g. four carriages supporting a slide on two parallel rails
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/0005—Production of optical devices or components in so far as characterised by the lithographic processes or materials used therefor
- G03F7/0007—Filters, e.g. additive colour filters; Components for display devices
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- G—PHYSICS
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- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
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- G—PHYSICS
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- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70691—Handling of masks or workpieces
- G03F7/70716—Stages
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70691—Handling of masks or workpieces
- G03F7/70775—Position control, e.g. interferometers or encoders for determining the stage position
-
- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B5/00—Adjusting position or attitude, e.g. level, of instruments or other apparatus, or of parts thereof; Compensating for the effects of tilting or acceleration, e.g. for optical apparatus
-
- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B9/00—Housing or supporting of instruments or other apparatus
- G12B9/08—Supports; Devices for carrying
- G12B9/10—Instruments boards; Panels; Desks; Racks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General buildup of machine tools, e.g. spindles, slides, actuators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/68—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for positioning, orientation or alignment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
Definitions
- the present invention relates to a table device, a positioning device, a flat panel display manufacturing device, and a precision machine.
- a table apparatus having a table that supports a workpiece is used.
- the table device moves the table and determines the position of the work supported by the table.
- a table device capable of moving a table in three directions of an X-axis direction, a Y-axis direction, and a ⁇ Z direction.
- JP 2012-127715 A Japanese Patent Laid-Open No. 2015-117958
- An object of an aspect of the present invention is to provide a table device, a positioning device, a flat panel display manufacturing device, and a precision machine that can suppress a shortage of positioning accuracy.
- a base member having a guide surface, a first axial direction parallel to a first axis in a predetermined plane supported by the base member and parallel to the guide surface, the first A table rotatable about a second axis direction parallel to the second axis in the predetermined plane orthogonal to the axis and a table central axis parallel to the third axis orthogonal to the predetermined plane; and A first drive device that applies a force in one axial direction; and a second drive device that applies a force in the second axial direction to the table, the first drive device being supported by the base member, A first actuator that generates power for moving the actuator in the first axis direction, and a first actuator that is connected to the table and moves along a first drive axis parallel to the first axis by the operation of the first actuator.
- the apparatus is supported by the base member and generates a power for moving the table in the second axis direction.
- the apparatus is connected to the table, and the second axis is operated by the operation of the second actuator.
- a second movable member that moves along a parallel second drive shaft, and the first drive device has a position of the table central axis and a position of the first drive shaft in the second axis direction. Only one of the second driving devices is provided so as to coincide with each other, and at least two of the second driving devices are provided such that the position of the table central axis and the position of the second driving shaft in the first axis direction are different.
- the first movable member is guided by a first guide member provided on the base member, and moves along the first drive shaft, and a first lock fixed to the first linear bearing.
- a first rotary bearing disposed around the member and rotatable relative to the first rod member about a first rod central axis parallel to the third axis; and connected to the first rotary bearing; And a second linear bearing guided in the second axial direction by a second guide member fixed to an end of the table in the first axial direction.
- the table is rotated about the first axis direction, the second axis direction, and the table central axis by one first driving device and at least two second driving devices. It can move in three directions. Since the first drive device is provided so that the position of the table central axis in the second axis direction coincides with the position of the first drive axis, the end of the table in the first axis direction when the table rotates. Interference between the second guide member fixed to the second linear bearing and the second linear bearing is suppressed. Further, the first linear bearing that moves along the first drive shaft in the base member and the second linear bearing that is fixed to the table and moves in the second axial direction are provided via the first rod member and the first rotary bearing. Connected.
- the second movable member is guided by a third guide member provided on the base member, and moves along the second drive shaft.
- a second rotary bearing disposed around a second rod member fixed to a linear bearing and capable of rotating relative to the second rod member about a second rod central axis parallel to the third axis; And a fourth linear bearing connected to the second rotary bearing and guided in the first axial direction by a fourth guide member fixed to the end of the table in the second axial direction.
- a third linear bearing that moves along the second drive shaft in the base member and a fourth linear bearing that is fixed to the table and moves in the first axial direction are connected via a second rod member and a second rotary bearing. The Therefore, even when the table rotates about the table center axis, the moment acting on the fourth linear bearing and the fourth guide member is suppressed by the relative rotation of the second rod member and the second rotary bearing. Therefore, insufficient positioning accuracy of the table device is suppressed.
- the second driving device is connected to one end of the table in the second axial direction, guided by a fifth guide member provided on the base member, and A fifth linear bearing that moves in two axial directions, and a third rod that is arranged around a third rod member that is fixed to the fifth linear bearing and that is parallel to the third axis and that is centered on a third rod central axis.
- a third rotary bearing capable of rotating relative to the member; and a sixth guide member connected to the third rotary bearing and fixed to the other end of the table in the second axial direction.
- a sixth linear bearing guided by the first linear bearing.
- a second drive unit is connected to one end of the second axial table, and a fifth linear bearing, a third rotary bearing, and a sixth linear bearing are connected to the other end of the second axial table.
- one of the second drive devices is connected to one end of the table in the second axial direction, and one of the second drive devices is connected to the first drive device.
- the two-drive device may be connected to the other end of the table in the second axial direction.
- One second driving device is connected to one end of the table in the second axial direction, and one second driving device is connected to the other end of the table in the second axial direction. Insufficient positioning accuracy is suppressed, and an increase in the size and complexity of the table device is suppressed.
- the table is disposed between the lower surface of the table and the guide surface of the base member, and the lower surface of the table and the guide surface of the base member face each other with a gap therebetween,
- a plane guide device for guiding the table in a direction parallel to the predetermined surface may be provided.
- the plane guide device has a rod-shaped slide member, is supported by the table, and is movably supported in a third axis direction parallel to the third axis.
- a guide bearing may be provided.
- a drive element that moves the plane guide device in the third axial direction may be provided.
- a positioning device that includes the table device of the first aspect and determines the position of the work supported by the table of the table device.
- a preload device that preliminarily applies a force in a rotation direction about the table central axis to the table may be provided.
- the preload device is supported by the base member, and is connected to the table and a preload actuator that generates power for moving the table in the second axial direction.
- a preload movable member that moves along a preload drive shaft that is parallel to the second shaft by operation of an actuator, and the preload device includes a position of the table center axis in the first axis direction and the preload drive shaft. It may be provided so as to be different from the position.
- the preload movable member is guided by a seventh guide member provided on the base member, and moves along the preload drive shaft, and the seventh linear bearing.
- a fourth rotary bearing disposed around a fourth rod member fixed to the fourth rod member and rotatable relative to the fourth rod member about a fourth rod central axis parallel to the third axis;
- an eighth linear bearing connected to the rotary bearing and guided in the first axial direction by an eighth guide member fixed to the end of the table in the second axial direction.
- At least two preload devices are provided so that a position of the table central axis and a position of the preload drive shaft in the first axis direction are different, and at least two of the preload devices.
- the force applied to the table may be different.
- a flat panel display manufacturing apparatus including the table device according to the first aspect and a processing unit for processing a work supported by the table.
- the flat panel display manufacturing apparatus can process a workpiece positioned by a table, it is possible to suppress a defective product from being manufactured from the workpiece.
- the flat panel display manufacturing apparatus includes, for example, a bonding apparatus that bonds two substrates, and is used in at least a part of the flat panel display manufacturing process.
- the flat panel display includes at least one of a liquid crystal display, a plasma display, and an organic EL display.
- a precision machine including the table device according to the first aspect and a processing unit for processing a work supported by the table.
- the precision machine can process the workpiece positioned by the table, it is possible to suppress a defective product from being manufactured from the workpiece.
- the precision machine includes, for example, one or both of a precision measuring machine and a precision processing machine. Since the precision measuring machine can measure the workpiece positioned by the table, the workpiece can be measured accurately. Since the precision processing machine can process the workpiece positioned by the table, the workpiece can be processed precisely.
- a table device a positioning device, a flat panel display manufacturing device, and a precision machine that can suppress a shortage of positioning accuracy.
- FIG. 1 is a plan view showing an example of a table device according to the first embodiment.
- FIG. 2 is a side sectional view showing an example of the table device according to the first embodiment.
- FIG. 3 is a diagram illustrating an example of the coupling device according to the first embodiment.
- FIG. 4 is a diagram illustrating a table device according to a comparative example.
- FIG. 5 is a diagram illustrating the operation of the table device according to the comparative example.
- FIG. 6 is a schematic diagram for comparing the position correction amount in the conventional table apparatus and the position correction amount in the table apparatus according to the first embodiment.
- FIG. 7 is a plan view showing an example of a table device according to the second embodiment.
- FIG. 8 is a plan view showing an example of a table device according to the third embodiment.
- FIG. 9 is a side sectional view showing an example of a table device according to the fourth embodiment.
- FIG. 10 is an enlarged view showing the vicinity of the guide bearing according to the fourth embodiment.
- FIG. 11 is a side sectional view showing an example of a table device according to the fifth embodiment.
- FIG. 12 is an enlarged view showing the vicinity of the plane guide device and the drive element according to the fifth embodiment.
- FIG. 13 is a plan view showing an example of a table device according to the sixth embodiment.
- FIG. 14 is a view taken along the line BB in FIG.
- FIG. 15 is a plan view showing an example of a table device according to the seventh embodiment.
- FIG. 16 is a plan view showing an example of a table device according to the eighth embodiment.
- FIG. 17 is a plan view showing an example of a table device according to the ninth embodiment.
- FIG. 18 is a side sectional view showing an example of a table device according to the ninth embodiment.
- FIG. 19 is a plan view showing an example of a table device according to the tenth embodiment.
- FIG. 20 is a diagram illustrating an example of a flat panel display manufacturing apparatus according to the eleventh embodiment.
- FIG. 21 is a diagram illustrating an example of a precision machine according to the twelfth embodiment.
- FIG. 22 is a diagram illustrating an example of a precision machine according to the thirteenth embodiment.
- a direction parallel to the first axis in the predetermined plane is defined as an X-axis direction (first axis direction).
- a direction parallel to the second axis in a predetermined plane orthogonal to the first axis is defined as a Y-axis direction (second axis direction).
- a direction parallel to the third axis perpendicular to the predetermined plane is defined as a Z-axis direction (third axis direction).
- a rotation (tilt) direction around the X axis (first axis) is defined as a ⁇ X direction.
- a rotation (tilt) direction around the Y axis (second axis) is defined as a ⁇ Y direction.
- a rotation (tilt) direction around the Z axis (third axis) is defined as a ⁇ Z direction.
- the predetermined plane includes an XY plane. In the present embodiment, the predetermined plane and the horizontal plane are parallel.
- the Z-axis direction is the vertical direction.
- the X axis is orthogonal to the YZ plane.
- the Y axis is orthogonal to the XZ plane.
- the Z axis is orthogonal to the XY plane.
- the XY plane includes an X axis and a Y axis.
- the XZ plane includes an X axis and a Z axis.
- the YZ plane includes a Y axis and a Z axis.
- FIG. 1 is a plan view showing an example of a table apparatus 100A according to the present embodiment.
- FIG. 2 is a side sectional view showing an example of the table apparatus 100A according to the present embodiment.
- FIG. 2 corresponds to the AA arrow view of FIG.
- a table apparatus 100A includes a table 1 having an upper surface 1A and a lower surface 1B, a base member 2 having an upper surface 2A facing the lower surface 1B of the table 1, and an actuator capable of moving the table 1 And a mobile system 8 having 7.
- Table 1 supports the workpiece S.
- the workpiece S is supported on the upper surface 1A of the table 1.
- the table 1 is movably supported by the base member 2.
- the upper surface 2A of the base member 2 is parallel to the XY plane.
- the upper surface 2A of the base member 2 is a guide surface that guides the table 1 in the XY plane.
- the table 1 is movable in three directions, ie, an X-axis direction, a Y-axis direction, and a rotation direction ( ⁇ Z direction) about the table center axis AX parallel to the Z-axis. is there.
- the table center axis AX passes through the center of gravity of the table 1.
- the table device 100A is disposed between the lower surface 1B of the table 1 and the upper surface (guide surface) 2A of the base member 2, and the lower surface 1B of the table 1 and the upper surface 2A of the base member 2 are opposed to each other with a gap G therebetween.
- a plane guide device 30 for guiding the table 1 in a direction parallel to the XY plane is provided.
- the plane guide device 30 includes a plurality of balls that can rotate while being in contact with the upper surface 2A. When the ball contacts the upper surface 2A, the gap G between the lower surface 1B of the table 1 and the upper surface (guide surface) 2A of the base member 2 is maintained.
- the plane guide device 30 may include a static pressure gas bearing.
- the table device 100A functions as a positioning device that determines the position of the workpiece S.
- a positioning device including the table device 100 ⁇ / b> A determines the position of the workpiece S supported by the table 1.
- the table device may be referred to as a positioning device.
- the moving system 8 includes a first drive device 9 that applies a force in the X-axis direction to the table 1 and a second drive device 10 that applies a force in the Y-axis direction to the table 1.
- the first drive device 9 and the second drive device 10 are supported by the base member 2.
- the first drive device 9 is supported by the base member 2 and is connected to the table 1 and a first actuator 7X that generates power for moving the table 1 in the X-axis direction.
- a first movable member that moves along a first drive axis DX that is parallel to the first drive axis DX.
- the second drive device 10 is supported by the base member 2 and is connected to the table 1 and a second actuator 7Y that generates power for moving the table 1 in the Y-axis direction. And a second movable member that moves along a second drive axis DY parallel to the first drive axis DY.
- only one first driving device 9 is provided so that the position of the table center axis AX and the position of the first driving axis DX in the Y-axis direction coincide.
- At least two second drive devices 10 are provided such that the position of the table center axis AX and the position of the second drive axis DY in the X-axis direction are different.
- one first driving device 9 is connected to the + X side end of the table 1.
- Two second driving devices 10 are coupled to the ⁇ Y side end of the table 1.
- the actuator 7 of the moving system 8 includes a first actuator 7X and a second actuator 7Y.
- the actuator 7 includes a servo motor.
- the moving system 8 has a ball screw mechanism 15 connected to the actuator 7.
- the ball screw mechanism 15 includes a first ball screw mechanism 15X connected to the first actuator 7X and a second ball screw mechanism 15Y connected to the second actuator 7Y.
- the first ball screw mechanism 15X includes a ball screw that is rotated by the power generated by the first actuator 7X, and a nut that is disposed around the ball screw.
- the second ball screw mechanism 15Y includes a ball screw that is rotated by the power generated by the second actuator 7Y, and a nut that is disposed around the ball screw.
- the actuator 7 and the ball screw mechanism 15 are connected via a coupling 16.
- the first drive device 9 is connected to the first actuator 7X and the nut of the first ball screw mechanism 15X, and is provided on the first linear bearing 11 movable along the first drive axis DX, and the base member 2,
- the first linear bearing 11 is guided in the Y-axis direction by the first guide member 12 that guides the first linear bearing 11 in the X-axis direction and the second guide member 18 that is fixed to the + X side end of the table 1 via the connecting member 22.
- a second linear bearing 19 and a connecting device 3 that connects the first linear bearing 11 and the second linear bearing 19 are provided.
- the second drive device 10 is connected to the second actuator 7Y and the nut of the second ball screw mechanism 15Y, and is provided on the third linear bearing 13 movable along the second drive shaft DY, and the base member 2,
- the third linear bearing 13 is guided in the X-axis direction by a third guide member 14 for guiding the third linear bearing 13 in the Y-axis direction and a fourth guide member 20 fixed to the end portion on the ⁇ Y side of the table 1 via the connection member 23.
- a fourth linear bearing 21, and a connecting device 3 that connects the third linear bearing 13 and the fourth linear bearing 21.
- the connecting device 3 of the first drive device 9 is arranged around the rod member 5 fixed to the first linear bearing 11 and the rod member 5 around the rod central axis J parallel to the Z axis.
- the rotary bearing 4 is relatively rotatable in the ⁇ Z direction.
- the first support member 6 ⁇ / b> X is fixed to the first linear bearing 11.
- the rod member 5 is fixed to the first support member 6X.
- the rod member 5 is provided so as to protrude upward from the upper surface of the first support member 6X.
- the rotary bearing 4 is connected to the second linear bearing 19.
- the connecting device 3 of the second drive device 10 is arranged around the rod member 5 fixed to the third linear bearing 13 and the rod member 5 around the rod member 5 and arranged around the rod member 5.
- the rotary bearing 4 is relatively rotatable in the ⁇ Z direction.
- the second support member 6 ⁇ / b> Y is fixed to the third linear bearing 13.
- the rod member 5 is fixed to the second support member 6Y.
- the rod member 5 is provided so as to protrude upward from the upper surface of the second support member 6Y.
- the rotary bearing 4 is connected to the fourth linear bearing 21.
- the ball screw of the first ball screw mechanism 15X rotates.
- the first linear bearing 11 moves in the X-axis direction.
- the first linear bearing 11 is guided in the X-axis direction by a first guide member 12 provided on the base member 2 and moves along the first drive axis DX.
- the rod member 5 fixed to the first linear bearing 11 via the first support member 6 ⁇ / b> X moves together with the first linear bearing 11 in the X-axis direction.
- the rotary bearing 4 arranged around the rod member 5 moves in the X-axis direction together with the rod member 5.
- the ball screw of the second ball screw mechanism 15Y rotates.
- the 3rd linear bearing 13 moves to a Y-axis direction.
- the third linear bearing 13 is guided in the Y-axis direction by a third guide member 14 provided on the base member 2 and moves along the second drive shaft DY.
- the rod member 5 fixed to the third linear bearing 13 via the second support member 6Y moves together with the third linear bearing 13 in the Y-axis direction.
- the rotary bearing 4 arranged around the rod member 5 moves in the Y-axis direction together with the rod member 5.
- the movement system 8 can move the table 1 in the X-axis direction by operating the first actuator 7X of the first drive device 9. Further, the moving system 8 can move the table 1 in the Y-axis direction by operating the second actuator 7Y of the second drive device 10. Further, the moving system 8 can move the table 1 in the ⁇ Z direction (rotational direction) by changing the operation amount of the second actuators 7Y of the plurality (two) of the second drive devices 10.
- the first movable member that is coupled to the table 1 and moves along the first drive shaft DX by the operation of the first actuator 7X includes the first linear bearing 11, the rod member 5, and the rotary bearing 4.
- the device 3 and the second linear bearing 19 are included.
- the second movable member that is connected to the table 1 and moves along the second drive shaft DY by the operation of the second actuator 7Y includes the third linear bearing 13, the rod member 5, and the rotary device 4, the connecting device 3, And a fourth linear bearing 21.
- FIG. 3 is a diagram illustrating an example of the coupling device 3 of the first drive device 9 according to the present embodiment.
- the coupling device 3 is arranged around the rod member 5 provided so as to protrude upward from the upper surface of the first support member 6 ⁇ / b> X fixed to the first linear bearing 11.
- the rotary bearing 4 is arranged around the rod member 5 provided so as to protrude upward from the upper surface of the first support member 6 ⁇ / b> X fixed to the first linear bearing 11.
- the rod member 5 has a rod portion 5L and a flange portion 5F disposed on each of the upper end portion and the lower end portion of the rod portion 5L.
- Rotating bearing 4 is substantially cylindrical.
- the rotary bearing 4 is disposed around the rod portion 5L.
- the rotary bearing 4 is supported by the casing 17.
- the second linear bearing 19 is connected to the rotary bearing 4 via the casing 17.
- Rotating bearing 4 includes a ball bearing.
- the rotary bearing 4 includes an inner ring 4A disposed so as to contact the rod portion 5L, an outer ring 4B disposed around the inner ring 4A, and a ball 4C disposed between the inner ring 4A and the outer ring 4B.
- two ball bearings including the inner ring 4A, the outer ring 4B, and the ball 4C are arranged in the vertical direction (direction parallel to the central axis of the rod portion 5L).
- Rotating bearing 4 allows movement of rod member 5 in the vertical direction. By adjusting the amount of preload applied to the rotary bearing 4, the movement of the rod member 5 in the vertical direction is allowed.
- the rod member 5 is supported by the rotary bearing 4 so as to be movable in the vertical direction.
- the table 1 is movable in the vertical direction with respect to the first drive device 9 and the support member 6. In other words, displacement of the table 1 in the vertical direction with respect to the first drive device 9 and the support member 6 is allowed.
- the needle is applied with preload and has no gap in the radial direction.
- the movement of the rod member 5 in the vertical direction may be allowed using a bearing. Further, when the amount of movement of the rod member 5 is small, the movement of the rod member 5 in the vertical direction may be allowed due to the axial rigidity of the rotary bearing 4.
- the rotary bearing 4 is front-combined, and the movement of the rod member 5 in the vertical direction is caused by the rotation in the ⁇ Y direction of the bearing portion composed of the rotary bearings 4 combined in front and the rotation of the first linear bearing 11 in the ⁇ Y direction. May be allowed.
- the connecting device 3 of the second driving device 10 has the same structure as the connecting device 3 of the first driving device 9. Description of the coupling device 3 of the second drive device 10 is omitted.
- the position of the work S supported by the table 1 in the XY plane is adjusted by the moving system 8.
- the moving system 8 operates the first actuator 7X of the first drive device 9.
- the moving system 8 operates the second actuator 7Y of the second drive device 10.
- the moving system 8 operates the two second actuators 7Y by changing the operation amounts of the second actuators 7Y of the two second drive devices 10.
- the first drive device 9 is provided so that the position of the table center axis AX and the position of the first drive axis DX coincide with each other in the Y-axis direction.
- the first drive shaft DX includes a power point when the first drive device 9 applies a force to the table 1.
- the first drive shaft DX includes the center axis of the ball screw of the first ball screw mechanism 15X and is parallel to the X axis. Further, with respect to the Y-axis direction, the position of the first drive shaft DX coincides with the central axis (rod central axis J) of the rotary bearing 4.
- the first drive device 9 Interference between the second linear bearing 19 and the second guide member 18 is suppressed, and a smooth guide of the second linear bearing 19 by the second guide member 18 is maintained. Therefore, insufficient positioning accuracy of the table device 100A is suppressed.
- the two second drive devices 10 are provided so that the position of the table center axis AX and the position of the second drive axis DY are different in the X-axis direction.
- the second drive shaft DY includes a power point when the second drive device 10 applies a force to the table 1.
- the second drive shaft DY includes the center axis of the ball screw of the second ball screw mechanism 15Y and is parallel to the Y axis. With respect to the X-axis direction, the position of the second drive shaft DY coincides with the central axis (rod central axis J) of the rotary bearing 4. Since the position of the table center axis AX and the position of the second drive axis DY in the X-axis direction are different, the table 1 can move in the Y-axis direction and the ⁇ Z direction.
- the rotary bearing 4 is connected between the first linear bearing 11 connected to the first actuator 7X and moving in the X-axis direction and the second linear bearing 19 connected to the table 1 and moved in the Y-axis direction.
- a connecting device 3 including is arranged.
- the first linear bearing 11 and the second linear bearing 19 are connected via a connecting device 3 including the rotary bearing 4.
- FIG. 4 is a diagram showing a table device 100J according to a comparative example.
- the rod member 5 is fixed to the table 1, and the rotary bearing 4 is disposed around the rod member 5.
- the rotary bearing 4 and the second guide member 18 are connected, and the second linear bearing 19 and the first linear bearing 11 are fixed.
- FIG. 5 is a diagram illustrating an example of the operation of the table apparatus 100J according to the comparative example.
- the table 1 rotates in the ⁇ Z direction from the state shown in FIG. 5A
- the position of the table center axis AX and the position of the first drive axis DX in the Y-axis direction shift as shown in FIG. 5B. (Offset).
- the offset amount OF between the table center axis AX and the first drive axis DX is considered.
- the calculation of the position correction amount for correcting the position of the second linear bearing 19 in the X-axis direction may be complicated.
- the amount of movement of the table 1 in the Y-axis direction by the second driving device 10 needs to be included in the calculation of the position correction amount.
- the calculation of the position correction amount is simplified.
- FIG. 6 shows a position correction amount by an actuator in a table device having a conventional structure as disclosed in, for example, Japanese Patent Application Laid-Open No. 2012-127715, and a position correction amount by a first actuator 7X in the table device 100A according to the present embodiment. It is a schematic diagram which compares.
- FIG. 6 is a diagram schematically showing the table, and the table rotates about the table center axis AX by an angle ⁇ .
- the table apparatus 100A In the case of a table device having a conventional structure, it is necessary to move the table by [OaX ⁇ tan ⁇ ] as the position correction amount DJ.
- the table may be moved by [L (1-1 / cos ⁇ )] as the position correction amount D.
- the angle ⁇ is very small, the position correction amount can be ignored.
- correction is required depending on the balance of the offset amount OF, the rotation amount of the table, and the positioning accuracy. For example, when it is desired to obtain a positioning accuracy of 1 [ ⁇ m], if the rotation amount is 0.1 [°], the offset amount OF is 0.57 in order to make the position correction amount 1 [ ⁇ m] or less. [Mm] or less, that is, in design, the offset amount is set to zero, and the offset needs to be suppressed to an error level due to part processing or assembly tolerance.
- the table 1 has the X-axis direction, the Y-axis direction, and the table central axis AX by one first driving device 9 and at least two second driving devices 10. It can move in three directions of rotation direction. Since the first drive device 9 is provided so that the position of the table center axis AX in the Y-axis direction matches the position of the first drive axis DX, the table 1 in the X-axis direction when the table 1 rotates. Interference between the second guide member 18 fixed to the end of the second linear bearing 19 and the second linear bearing 19 is suppressed.
- first linear bearing 11 that moves along the first drive axis DX in the base member 2 and the second linear bearing 19 that is fixed to the table 1 and moves in the Y-axis direction are a rod member of the first drive device 9. 5 and the rotary bearing 4. Therefore, even if the table 1 is rotated around the table center axis AX, the relative rotation between the rod member 5 and the rotary bearing 4 of the first drive device 9 acts on the second linear bearing 19 and the second guide member 18. The moment is suppressed. Therefore, insufficient positioning accuracy of the table device 100A is suppressed.
- the third linear bearing 13 that moves along the second drive axis DY in the base member 2 and the fourth linear bearing 21 that is fixed to the table 1 and moves in the X-axis direction are the second The rod member 5 of the driving device 10 and the rotary bearing 4 are connected. Therefore, even when the table 1 rotates about the table center axis AX, the relative rotation between the rod member 5 and the rotary bearing 4 of the second drive device 10 acts on the fourth linear bearing 21 and the fourth guide member 20. The moment is suppressed. Therefore, insufficient positioning accuracy of the table device 100A is suppressed.
- FIG. 7 is a plan view showing an example of the table device 100B according to the present embodiment.
- the table device 100B according to this embodiment is characterized in that an auxiliary guide device 50 is provided in the table device 100A described in the above embodiment.
- the table device 100B includes one first driving device 9 connected to the + X side end of the table 1, two second driving devices 10 connected to the ⁇ Y side end of the table 1, and the table 1 And the two auxiliary guide devices 50 connected to the + Y side end.
- the auxiliary guide device 50 is guided by a fifth guide member 14B provided on the base member 2, and moves around the fifth linear bearing 13B moving in the Y-axis direction and the rod member 5 fixed to the fifth linear bearing 13B.
- a rotary bearing 4 disposed and rotatable relative to the rod member 5 around a rod central axis J parallel to the Z axis, and connected to the rotary bearing 4 and fixed to the + Y side end of the table 1
- a sixth linear bearing 21B guided in the X-axis direction by the six guide members 20B.
- the auxiliary guide device 50 has a structure in which the second actuator 7Y, the coupling 16, and the second ball screw mechanism 15Y are removed from the second drive device 10.
- the fifth linear bearing 13 ⁇ / b> B that moves in the Y-axis direction and the sixth linear bearing 21 ⁇ / b> B that moves in the X-axis direction are connected by a connecting device 3 that includes the rod member 5 and the rotary bearing 4.
- Two second driving devices 10 are arranged in the X-axis direction in the space on the ⁇ Y side of the table 1.
- Two auxiliary guide devices 50 are arranged in the X-axis direction in the space on the + Y side of the table 1.
- the position of one of the two second driving devices 10 in the X-axis direction is equal to the position of one of the two auxiliary guide devices 50 in the X-axis direction.
- the position in the X-axis direction of the other second drive device 10 of the two second drive devices 10 is equal to the position in the X-axis direction of the other auxiliary guide device 50 of the two auxiliary guide devices 50. That is, the X coordinate of the connecting device 3 (rod central axis J) of the two second driving devices 10 and the X coordinate of the connecting device 3 (rod central axis J) of the two auxiliary guide devices 50 are equal.
- the operation of the actuator 7 of the movement system 8 allows the table 1 to move in three directions, the X-axis direction, the Y-axis direction, and the ⁇ Z direction.
- the second drive device 10 is connected to the ⁇ Y side end of the table 1, and the auxiliary guide device 50 is connected to the + Y side end of the table 1.
- FIG. 8 is a plan view showing an example of the table device 100C according to the present embodiment.
- a table device 100C according to the present embodiment is a modification of the table device 100A described in the above-described embodiment.
- one of the two second drive devices 10 is connected to the + Y side end of the table 1, and one second drive device 10 is connected to the table 1. -Connected to the Y side end.
- the position in the X-axis direction of the second drive device 10 disposed on the + Y side with respect to the table center axis AX of the table 1 and the second drive device disposed on the ⁇ Y side with respect to the table center axis AX of the table 1 This is different from the position of 10 in the X-axis direction. That is, the X coordinate of the coupling device 3 (rod central axis J) of the second drive device 10 disposed on both sides in the Y-axis direction with respect to the table central axis AX of the table 1 is different.
- insufficient positioning accuracy of the table apparatus 100C is suppressed, and an increase in the size and complexity of the structure of the table apparatus 100C is suppressed.
- FIG. 9 is a side sectional view showing a part of the table apparatus 100D according to the present embodiment.
- a plane guide device 30B which is a modification of the plane guide device 30, will be described.
- the plane guide device 30B is disposed between the lower surface 1B of the table 1 and the upper surface 2A of the base member 2, and the table 1 in the state where the lower surface 1B of the table 1 and the upper surface 2A of the base member 2 face each other with a gap G therebetween. 1 is guided in a direction parallel to the XY plane.
- the plane guide device 30B is arranged in an internal space 1H formed in the table 1.
- the plane guide device 30 ⁇ / b> B includes a support plate 32 that supports a plurality of balls 31, and a rod-shaped slide member 33 connected to the support plate 32.
- the ball 31 is disposed on the lower surface side of the support plate 32.
- the ball 31 is supported by the support plate 32 so as to be rotatable (rollable).
- the plain guide device 30 ⁇ / b> B at least a part of the ball 31 is arranged to protrude downward from the lower surface 1 ⁇ / b> B of the table 1.
- the table 1 moves on the upper surface 2A of the base member 2 by the operation of the moving system 8.
- the ball 31 of the plane guide device 30 ⁇ / b> B can roll while in contact with the upper surface 2 ⁇ / b> A of the base member 2.
- the table 1 is guided in at least one of the X-axis direction, the Y-axis direction, and the ⁇ Z direction parallel to the upper surface 2A.
- the slide member 33 is fixed to the upper surface of the support plate 32.
- the slide member 33 is provided so as to protrude upward from the upper surface of the support plate 32.
- the slide member 33 has a rod portion 33L and a flange portion 33F disposed at each of the upper end portion and the lower end portion of the rod portion 33L.
- the table apparatus 100D includes a guide bearing 34 that is supported by the table 1 and supports the slide member 33 so as to be movable in the Z-axis direction.
- FIG. 10 is an enlarged view showing the vicinity of the guide bearing 34 according to the present embodiment.
- the guide bearing 34 is disposed around the rod portion 33L.
- the guide bearing 34 is supported on the inner surface of the internal space 1H of the table 1.
- the guide bearing 34 includes a ball bearing.
- the guide bearing 34 includes an inner ring 34A disposed so as to contact the rod portion 33L, an outer ring 34B disposed around the inner ring 34A, and a ball 34C disposed between the inner ring 34A and the outer ring 34B.
- two ball bearings including the inner ring 34A, the outer ring 34B, and the ball 34C are arranged in the Z-axis direction (direction parallel to the central axis of the rod portion 33L).
- the guide bearing 34 allows the movement of the slide member 33 (plane guide device 30B) in the Z-axis direction.
- the slide member 33 is supported by the guide bearing 34 so as to be movable in the Z-axis direction.
- the plane guide device 30 ⁇ / b> B is movable in the Z-axis direction with respect to the table 1. In other words, the displacement of the plane guide device 30B in the Z-axis direction with respect to the table 1 is allowed.
- a vertical downward load may act on the table 1.
- the load in the Z-axis direction on the table 1 is zero, the lower surface 1B of the table 1 and the upper surface 2A of the base member 2 face each other with a gap G therebetween.
- the table 1 is lowered so that the size of the gap G is reduced.
- the guide bearing 34 supports the table 1 so that the lower surface 1B of the table 1 and the upper surface 2A of the base member 2 do not contact each other.
- At least a part of the plane guide device 30B supported by the table 1 is in contact with the upper surface 2A of the base member 2 in a state where the load in the Z-axis direction on the table 1 is less than a predetermined value and the gap G is formed. .
- the table 1 moves in the XY plane by the operation of the moving system 8
- the table 1 is guided to the upper surface 2A of the base member 2 via the plane guide device 30B. Thereby, the table 1 can move smoothly in the horizontal direction.
- the guide bearing 34 allows the table 1 to move in the Z-axis direction by the size of the gap G.
- the dimension of the gap G is the distance between the lower surface 1B and the upper surface 2A when the load in the Z-axis direction on the table 1 is zero (no load).
- the guide bearing 34 guides the table 1 in the Z-axis direction so that the lower surface 1 ⁇ / b> B of the table 1 and the upper surface 2 ⁇ / b> A of the base member 2 come into contact with each other when a vertically downward load of a predetermined value or more acts on the table 1. .
- the table 1 is supported on the upper surface 2 ⁇ / b> A of the base member 2 by the lower surface 1 ⁇ / b> B of the table 1 contacting the upper surface 2 ⁇ / b> A of the base member 2.
- the dimension of the gap G is determined so that the lower surface 1B and the upper surface 2A come into contact before an excessive load (overload) is applied to the guide bearing 34.
- the dimension of the gap G is determined so that no overload acts on the guide bearing 34 even if the table 1 moves in the vertical direction within the range of the dimension of the gap G.
- the state where an overload acts on the guide bearing 34 means a state where a load exceeding the static load rating acts on the guide bearing 34 and a case where the ball 34C comes off the guide grooves of the inner ring 34A and the outer ring 34B.
- a state in which a load acts on the guide bearing 34 is exemplified.
- the predetermined value means that a load in the -Z direction acts on the table 1, the position of the table 1 in the Z-axis direction cannot be maintained by the guide bearing 34, the table 1 moves in the -Z direction, and the lower surface 1B of the table 1 And the upper surface 2A of the base member 2 are in contact with each other, and the value of the load in the ⁇ Z direction acting on the table 1 when the dimension of the gap G becomes zero.
- the load acting on the table 1 is zero (no load)
- the table 1 does not move in the ⁇ Z direction
- the position of the table 1 in the Z-axis direction is maintained, and the gap G between the lower surface 1B and the upper surface 2A is Maintained.
- the size of the gap G that allows the lower surface 1B and the upper surface 2A to contact each other before an overload is applied to the guide bearing 34, and the predetermined value of the load can be obtained in advance based on experiments or simulations. Based on the obtained data, the size of the gap G and the predetermined value of the load appropriate for the guide bearing 34 to be used are determined.
- the rotary bearing 4 of the coupling device 3 also has a table so that the lower surface 1B of the table 1 and the upper surface 2A of the base member 2 do not come into contact when the load in the Z-axis direction on the table 1 is less than a predetermined value. 1 is supported.
- the rotary bearing 4 allows the table 1 to move in the Z-axis direction by the size of the gap G. When a vertically downward load ( ⁇ Z direction) is applied to the table 1, the table 1 moves downward ( ⁇ Z direction) while being guided by the rotary bearing 4.
- the rotary bearing 4 guides the table 1 in the Z-axis direction so that the lower surface 1B of the table 1 and the upper surface 2A of the base member 2 are in contact with each other. .
- the guide bearing 34 allows the movement of the slide member 33 (plane guide device 30B) in the Z-axis direction.
- the plane guide device 30B supported by the guide bearing 34 moves relatively upward with respect to the table 1. Is possible. Thereby, the entire plane guide device 30 ⁇ / b> B is accommodated in the internal space 1 ⁇ / b> H of the table 1.
- the rigidity of the guide bearing 34 in the Z-axis direction is smaller than the rigidity of the plain guide device 30B in the Z-axis direction.
- an upward load in the vertical direction acts on the plane guide device 30B.
- the size of the gap G is determined so that the lower surface 1B and the upper surface 2A come into contact before an excessive load (overload) is applied to the plane guide device 30B.
- the dimension of the gap G is determined so that no overload acts on the plane guide device 30B even if the table 1 moves in the vertical direction within the range of the dimension of the gap G.
- the table 1 with the lower surface 1B of the table 1 and the upper surface 2A of the base member 2 facing each other with the gap G therebetween. Can move smoothly in a horizontal direction parallel to the upper surface 2A of the base member 2.
- the plane guide device 30 ⁇ / b> B has the rod-shaped slide member 33.
- the slide member 33 is supported by a guide bearing 34 supported by the table 1 so as to be movable in the Z-axis direction. Therefore, when the table 1 moves downward so that the lower surface 1B of the table 1 and the upper surface 2A of the base member 2 are in contact with the upper surface 2A of the base member 2, the plane guide device 30B is It can move relative to the table 1 upward. Thereby, the plane guide device 30 ⁇ / b> B is accommodated in the internal space 1 ⁇ / b> H of the table 1.
- FIG. 11 is a side sectional view showing an example of the table device 100E according to the present embodiment. Most parts of the table device 100E according to the present embodiment are the same as the table device 100D described in the above embodiment.
- the table device 100E includes a drive element 35 that moves the plane guide device 30B in the Z-axis direction.
- FIG. 12 is an enlarged view showing the vicinity of the plane guide device 30B and the drive element 35 according to the present embodiment.
- the plane guide device 30 ⁇ / b> B has a rod-shaped slide member 33 fixed to the support plate 32.
- a guide bearing 34 that supports the slide member 33 so as to be movable in the Z-axis direction is provided.
- the guide bearing 34 is supported on the inner surface of the internal space 1H of the table 1.
- the guide bearing 34 includes a ball bearing.
- the guide bearing 34 includes an inner ring 34A disposed so as to contact the rod portion 33L, an outer ring 34B disposed around the inner ring 34A, and a ball 34C disposed between the inner ring 34A and the outer ring 34B.
- two ball bearings including the inner ring 34A, the outer ring 34B, and the ball 34C are arranged in the Z-axis direction (direction parallel to the central axis of the rod portion 33L).
- the spacer member 37 is disposed between the two inner rings 34A disposed in the vertical direction.
- the inner ring 34 ⁇ / b> A is in contact with the spacer member 37.
- the two outer rings 34B arranged in the vertical direction face each other with a gap.
- the drive element 35 includes a piezoelectric element such as a piezo element.
- the drive element 35 is disposed between the upper surface of the guide bearing 34 and a fixing member 36 fixed to the inner surface of the internal space 1H of the table 1.
- the driving element 35 can adjust the position of the lower end portion of the plane guide device 30B in the Z-axis direction (the lower end portion of the ball 34C in this embodiment). As the drive element 35 contracts, the lower end portion of the plane guide device 30B moves upward. As the drive element 35 extends, the lower end portion of the plane guide device 30B moves downward.
- the drive element 35 is disposed between the upper outer ring 34B and the fixing member 36 among the two outer rings 34B disposed in the vertical direction of the guide bearing 34.
- the operation of the drive element 35 changes the distance between the two outer rings 34B. Thereby, the position of the lower end part of the plane guide apparatus 30B is adjusted.
- the position of the lower end portion of the plane guide device 30B in the vertical direction can be adjusted by the drive element 35. Therefore, the load acting on the plane guide device 30B is adjusted. For example, an excessive load is suppressed from acting on the plane guide device 30B.
- the lower surface 1B of the table 1 and the upper surface 2A of the base member 2 face each other with a gap G therebetween.
- the lower end portion of the plane guide device 30 ⁇ / b> B supported by the table 1 contacts the upper surface 2 ⁇ / b> A of the base member 2.
- the table 1 moves downward ( ⁇ Z direction) while being guided by the rotary bearing 4.
- the lower surface 1B of the table 1 contacts the upper surface 2A of the base member 2.
- the table 1 is supported on the upper surface 2 ⁇ / b> A of the base member 2 by the lower surface 1 ⁇ / b> B of the table 1 contacting the upper surface 2 ⁇ / b> A of the base member 2.
- the lower end portion of the plane guide device 30 ⁇ / b> B supported by the table 1 via the guide bearing 34 receives a load from the upper surface 2 ⁇ / b> A of the base member 2.
- the drive element 35 capable of moving the plane guide device 30B in the Z-axis direction since the drive element 35 capable of moving the plane guide device 30B in the Z-axis direction is provided, it is possible to suppress an excessive load from acting on the plane guide device 30B. Since the load acting on the plane guide device 30B can be reduced, an increase in the size of the plane guide device 30B is suppressed.
- the plane guide device 30 ⁇ / b> B, the guide bearing 34, and the drive element 35 may be disposed in the internal space of the base member 2.
- the drive element 35 may be a force control actuator such as an air cylinder.
- the dimension of the gap G between the table 1 and the base member 2 may be adjusted to zero by the drive element 35.
- FIG. 13 is a plan view showing an example of the table apparatus 100F according to the present embodiment.
- FIG. 14 is a view taken along the line BB in FIG.
- a table device 100F according to the present embodiment is a modification of the table device 100A described in the above-described embodiment.
- the table apparatus 100F includes one first driving device 9 and two second driving devices 10.
- the first driving device 9 is connected to the + X side end of the table 1.
- the second drive device 10 is connected to the ⁇ Y side end of the table 1.
- the position of the table center axis AX in the Y-axis direction matches the position of the first drive axis DX of the first drive device 9.
- the position of the table center axis AX in the X-axis direction is different from the position of the second drive axis DY of the second drive device 10.
- the table device 100F includes a preload device 60 that applies in advance a force in the rotational direction ( ⁇ Z direction) about the table center axis AX to the table 1.
- the preload device 60 always applies a force in the ⁇ Z direction to the table 1 by applying a force in the Y-axis direction.
- the preload device 60 is constant in a certain direction about the table center axis AX in a state where one or both of the first drive device 9 and the second drive device 10 generate a force for moving the table 1. Will continue to be applied to Table 1.
- the force (preload) generated by the preload device 60 is smaller than the force (drive force) generated by the first drive device 9 and the force (drive force) generated by the second drive device 10.
- the preload device 60 is supported by the base member 2 and is connected to the table 1 and a preload actuator 7P that generates power for moving the table 1 in the Y-axis direction.
- the preload device 60P operates in parallel with the Y-axis by the operation of the preload actuator 7P.
- a preload movable member that moves along the drive shaft DP.
- the preload device 60 is provided so that the position of the table center axis AX and the position of the preload drive shaft DP in the X-axis direction are different.
- the preload actuator 7P is an air cylinder.
- the cylinder portion of the preload actuator 7 ⁇ / b> P is fixed to the base member 2.
- the preload movable member is guided by a seventh guide member 64 provided on the base member 2, and moves along the preload drive shaft DP, and the rod member 5 fixed to the seventh linear bearing 63.
- a rotating bearing 4 that is disposed around and is rotatable relative to the rod member 5 around a rod center axis J parallel to the Z axis, and is connected to the rotating bearing 4 and fixed to the end of the table 1 on the + Y side.
- an eighth linear bearing 71 guided by the eighth guide member 70 in the X-axis direction.
- the seventh linear bearing 63 is connected to the rod portion of the preload actuator 7P, and moves along the preload drive shaft DP by the operation of the preload actuator 7P.
- the seventh guide member 64 is fixed to the base member 2 and guides the seventh linear bearing 63 in the Y-axis direction.
- the eighth guide member 70 is fixed to the + Y side end of the table 1 through the connection member 73.
- the eighth linear bearing 71 is guided by the eighth guide member 70 in the X-axis direction.
- the rod portion of the preload actuator 7P or the seventh linear bearing 63 and the eighth linear bearing 71 are connected by the connecting device 3 including the rotary bearing 4 and the rod member 5. Since the connecting device 3 is the same as the connecting device 3 described in the above embodiment, the description thereof is omitted.
- the preload device 60 always applies a moment to the table 1 in the rotation direction. For this reason, the play of the mechanism of the table device 100F is eliminated, and the lack of positioning accuracy of the table device 100F is suppressed.
- the position of the table center axis AX in the X-axis direction and the position of the preload drive shaft DP of the preload device 60 are different. Therefore, the moment can be applied smoothly to the table 1 by the force generated by the preload actuator 7P.
- the preload actuator 7 ⁇ / b> P and the eighth linear bearing 71 are connected by the connecting device 3 including the rod member 5 and the rotary bearing 4. Therefore, even when the table 1 rotates about the table center axis AX, the moment acting on the eighth linear bearing 71 and the eighth guide member 70 is suppressed by the relative rotation of the rod member 5 and the rotary bearing 4. Therefore, deterioration of the positioning accuracy of the table device 100F is suppressed.
- the eighth linear bearing 71 and the eighth guide member 70 and the seventh linear bearing 63 and the seventh guide member 64 are relatively movable and the cylinder force is constant, but the position is not fixed. Therefore, the table 1 can be rotated smoothly.
- the preload actuator 7P is an air cylinder.
- the preload actuator 7P may be a servo motor that applies a preload to the table 1 via a ball screw mechanism.
- the motor is controlled not in the positioning mode but in the torque mode. The same applies to the following embodiments.
- FIG. 15 is a plan view showing an example of the table device 100G according to the present embodiment.
- a table apparatus 100G according to the present embodiment is a modification of the table apparatus 100F described in the above-described embodiment.
- two preload devices 60 are provided so that the position of the table center axis AX and the position of the preload drive shaft DP in the X-axis direction are different.
- the forces applied to the table 1 by the two preload devices 60 are different.
- the output of the preload actuator 7Pa of one preload device 60 is different from the output of the preload actuator 7Pb of the other preload device 60.
- the two preload devices 60 are provided, and different forces can be applied to the two positions on the + Y side end of the table 1, so that a moment is applied to the table 1 in the ⁇ Z direction. And the lack of positioning accuracy of the table 1 in the ⁇ Z direction can be suppressed. Further, according to the present embodiment, since the two preload devices 60 are arranged so as to be symmetrical with the two second drive devices 10, the frictional force acting on the third guide member 14 of the second drive device 10. And the frictional force acting on the seventh guide member 64 of the preload device 60 is symmetric with respect to the X axis, and the positioning error of the table 1 in the ⁇ Z direction is suppressed.
- the frictional force acting on the fourth guide member 20 and the frictional force acting on the eighth guide member 70 are Since the two second drive devices 10 and the two preload devices 60 are arranged so as to be symmetrical, the position error (rotation error) of the table 1 in the ⁇ Z direction is suppressed.
- FIG. 16 is a plan view showing an example of the table apparatus 100H according to the present embodiment.
- the table apparatus 100H according to the present embodiment is an embodiment in which a preload device 60 is provided in the table apparatus 100C described with reference to FIG.
- a preload device 60 is provided in the table apparatus 100C described with reference to FIG.
- one second driving device 10 is connected to the + Y side end of the table 1, and one second driving device 10 is connected to the table 1. -Connected to the end on the Y side.
- FIG. 17 is a plan view showing an example of the table device 100I according to the present embodiment.
- FIG. 18 is a side sectional view showing an example of the table device 100I according to the present embodiment. Similar to the above-described embodiment, the table device 100I includes the first drive device 9, the second drive device 10, and the preload device 60.
- the table apparatus 100I is disposed in the internal space of the chamber apparatus 200.
- the table 1, the guide members 18, 20, 70, the linear bearings 19, 21, 71, the coupling device 3, and the like are arranged in the internal space of the chamber device 200.
- the first actuator 7X, the second actuator 7Y, and the preload actuator 7P are arranged in the external space of the chamber device 200.
- the chamber apparatus 200 includes an environment control system that controls the environment of the internal space.
- the environment of the internal space includes the type of gas in the internal space such that the pressure inside and outside the chamber apparatus 200 changes.
- the environment of the internal space may be the temperature of the internal space such that the pressure inside and outside the chamber apparatus 200 changes.
- the environment of the internal space may be the humidity of the internal space such that the pressure inside and outside the chamber apparatus 200 changes.
- the environment of the internal space may be the pressure (including the degree of vacuum) of the internal space such that the pressure inside and outside the chamber apparatus 200 changes.
- the environment of the internal space may be the cleanness of the internal space such that the pressure inside and outside the chamber apparatus 200 changes.
- the internal space of the chamber apparatus 200 is controlled to a vacuum state, for example, by the environment control system. Moreover, the internal space of the chamber apparatus 200 is controlled to a constant temperature by the environmental control system.
- the chamber device 200 has a plurality of openings 200K connecting the internal space and the external space.
- the first driving device 9, the second driving device 10, and the preload device 60 are disposed in the plurality of openings 200K.
- the chamber device 200 includes a bellows 250 disposed in the opening 200K and a support device 260 that supports the bellows 250.
- the bellows 250 suppresses generation of force due to a pressure difference between the internal space and the external space of the chamber apparatus 200.
- the bellows 250 suppresses the gas flow between the internal space and the external space.
- the chamber apparatus 200 having at least the internal space in which the table 1 is arranged is provided, so that it is supported by the table 1 in the internal space of the chamber apparatus 200 in which the environment is controlled.
- the workpiece S is processed. Since the actuators 7X, 7Y, and 7P are arranged in the external space of the chamber apparatus 200, for example, even if heat is generated from the actuators 7X, 7Y, and 7P, the influence of the heat on the table 1 and the workpiece S Is suppressed. Further, even if foreign matter is generated from each actuator 7X, 7Y, 7P, the influence of the foreign matter on the table 1 and the workpiece S is suppressed.
- the entire table apparatus 100I is not accommodated in the internal space of the chamber apparatus 200, and the table 1, the guide members 18, 20, 70, the linear bearings 19, 21, 71, the connecting apparatus 3, and the like are included in the chamber apparatus 200. Since the actuators 7X, 7Y, and 7P are accommodated in the internal space and are disposed in the external space of the chamber device 200, the chamber device 200 is prevented from being enlarged.
- FIG. 19 is a plan view showing an example of the table device 100J according to the present embodiment.
- the table device 100J includes a guide device 80Y that is connected to the + Y side end of the table 1 and guides the table 1 in the Y-axis direction.
- Two guide devices 80Y are arranged in the X-axis direction.
- the guide device 80Y does not include a power source such as an actuator.
- the guide device 80Y includes a ninth linear bearing 82 guided in the Y-axis direction by a ninth guide member 81 provided on the base member 2.
- the ninth linear bearing 82 is connected to the eighth linear bearing 71 via the connecting device 3.
- the eighth linear bearing 71 is guided by an eighth guide member 70 provided on the table 1.
- the ninth guide member 81 is fixed to the base member 2 so as to extend in the Y-axis direction.
- the ninth linear bearing 82 is movable in the Y-axis direction while being guided by the ninth guide member 81.
- the preload device 60J does not have a preload actuator. Due to the elastic force of the bellows 250, a force in the rotational direction about the table center axis AX is applied to the table 1.
- the bellows 250 includes a first bellows 250A that applies a first elastic force to the table 1, and a second bellows 250B that applies a second elastic force to the table 1.
- the position of the table center axis AX in the X-axis direction is different from the position of the first bellows 250A and the position of the second bellows 250B.
- the force that the first bellows 250A gives to the table 1 is different from the force that the second bellows 250B gives to the table 1.
- the bellows 250 is a cylindrical member disposed in the opening 200K, and the area of the bellows 250 refers to the opening area of the bellows 250 that is the cylindrical member.
- the first bellows 250A is provided so as to connect one of the two guide devices 80Y to the chamber device 200.
- the second bellows 250B is provided to connect the other guide device 80Y of the two guide devices 80Y and the chamber device 200.
- the force applied to the table 1 by the preload device 60J may not be the power generated by the preload actuator, but may be the elastic force generated by the bellows 250.
- FIG. 20 is a diagram illustrating an example of a flat panel display manufacturing apparatus 500 including the table apparatus 100A (100B to 100J) according to the present embodiment.
- the flat panel display manufacturing apparatus 500 is used in at least a part of a flat panel display manufacturing process.
- the flat panel display includes at least one of a liquid crystal display, a plasma display, and an organic EL display.
- the flat panel display manufacturing apparatus 500 includes a transport apparatus 600 that can transport the workpiece S for manufacturing a flat panel display.
- the transport apparatus 600 includes a table apparatus 100A according to the present embodiment.
- the table device 100A is illustrated in a simplified manner.
- the workpiece S is supported by the table 1.
- the workpiece S is a substrate for manufacturing a flat panel display.
- a flat panel display is manufactured from the workpiece S.
- the workpiece S may include a glass plate.
- the workpiece S may include a TFT substrate or a color filter substrate.
- the flat panel display manufacturing apparatus 500 performs a process for manufacturing a flat panel display using the workpiece S arranged at the processing position (target position) PJ1.
- the table apparatus 100A places the work S supported by the table 1 at the processing position PJ1.
- the transport device 600 includes a carry-in device 601 that can transport (load in) the workpiece S to the table 1 of the table device 100A, and a carry-out device 602 that can transport (unload) the work S from the table 1.
- the work S before processing is transported (carried in) to the table 1 by the carry-in device 601.
- the work S supported by the table 1 is transported to the processing position PJ1 by the table apparatus 100A.
- the unloaded device 602 transports (unloads) the processed workpiece S from the table 1.
- the table device 100A moves the table 1 and moves the workpiece S supported by the table 1 to the processing position PJ1.
- the table apparatus 100A can arrange the workpiece S supported by the table 1 at the processing position PJ1 with high positioning accuracy.
- the workpiece S supported by the table 1 includes one of the two substrates.
- the processing position PJ1 includes a bonding position where one substrate is bonded to the other substrate. The other substrate is pressed against one substrate of the table 1 arranged at the bonding position.
- the flat panel display manufacturing apparatus 500 includes a substrate holder 501 that holds the other substrate.
- the substrate holder 501 functions as a processing unit that processes the workpiece S (one substrate) supported by the table 1.
- the substrate holder 501 makes one substrate disposed at the bonding position and the other substrate held by the substrate holder 501 face each other.
- the substrate holder 501 moves downward so as to press the other substrate against one substrate supported by the table 1. Thereby, two board
- the processed workpiece S is conveyed from the table 1 by the carry-out device 602.
- the workpiece S transported (unloaded) by the unloading device 602 is transported to a processing device that performs a post-process.
- the table apparatus 100A can place the workpiece S at the processing position PJ1. In addition, lack of positioning accuracy of the table 1 is suppressed. Therefore, generation
- the table apparatus 100A (100B to 100J) may be used in a semiconductor manufacturing apparatus.
- the semiconductor manufacturing apparatus includes, for example, an exposure apparatus that forms a device pattern on the workpiece S via a projection optical system.
- the processing position PJ1 includes the image plane position (exposure position) of the projection optical system.
- the projection optical system functions as a processing unit that performs exposure processing on the workpiece S supported by the table 1. By disposing the workpiece S at the processing position PJ1, the semiconductor manufacturing apparatus can form a device pattern on the workpiece S via the projection optical system.
- the semiconductor manufacturing apparatus may include a film forming apparatus that forms a film on the workpiece S.
- the processing position PJ1 includes a supply position (film forming position) to which a material for forming a film is supplied.
- the supply unit that supplies the material functions as a processing unit that performs the film forming process of the workpiece S supported by the table 1.
- FIG. 21 is a diagram illustrating an example of a precision machine 700 including the table device 100A (100B to 100J) according to the present embodiment.
- the precision machine 700 is a precision measuring machine that accurately measures a workpiece such as a precision instrument will be described.
- the precision measuring instrument 700 measures the workpiece S2.
- the workpiece S2 may include, for example, at least one of a flat panel display manufactured by the flat panel display manufacturing apparatus 500 and a semiconductor device manufactured by the above-described semiconductor manufacturing apparatus.
- the precision measuring machine 700 includes a transfer device 600B that can transfer the workpiece S2.
- the transport apparatus 600B includes a table apparatus 100A according to the present embodiment.
- the table device 100A is illustrated in a simplified manner.
- the workpiece S2 is supported by the table 1.
- the precision measuring instrument 700 measures the workpiece S2 arranged at the measurement position (target position) PJ2.
- the table apparatus 100A places the workpiece S2 supported by the table 1 at the measurement position PJ2.
- the transfer device 600B includes a carry-in device 601B that can transfer (carry in) the workpiece S2 to the table 1 of the table device 100A, and a carry-out device 602B that can transfer (carry out) the workpiece S2 from the table 1.
- the workpiece S2 before measurement is transported (carried in) to the table 1 by the loading device 601B.
- the workpiece S2 supported by the table 1 is conveyed to the measurement position PJ2 by the table apparatus 100A.
- the workpiece S2 after measurement is conveyed (unloaded) from the table 1 by the unloading device 602B.
- the table apparatus 100A moves the table 1 and moves the workpiece S2 supported by the table 1 to the measurement position PJ2.
- the table device 100A can place the workpiece S2 supported by the table 1 at the measurement position PJ2 with high positioning accuracy.
- the precision measuring instrument 700 optically measures the workpiece S2 using detection light.
- the precision measuring instrument 700 includes an irradiation device 701 capable of emitting detection light and a light receiving device 702 capable of receiving at least part of the detection light emitted from the irradiation device 701 and reflected by the workpiece S2.
- the measurement position PJ2 includes a detection light irradiation position.
- the irradiation device 701 and the light receiving device 702 function as a processing unit that processes the workpiece S2 supported by the table 1.
- the irradiation device 701 and the light receiving device 702 function as a measurement unit that measures the workpiece S2 supported by the table 1.
- the workpiece S2 After the workpiece S2 is measured at the measurement position PJ2, the workpiece S2 after the measurement is conveyed from the table 1 by the carry-out device 602B.
- the table apparatus 100A can arrange the workpiece S2 at the measurement position (target position) PJ2, and therefore can suppress the occurrence of measurement failure. That is, the precision measuring instrument 700 can satisfactorily determine whether or not the workpiece S2 is defective. Thereby, for example, it is suppressed that defective work S2 is conveyed to a back process, or shipped. Further, since the precision measuring instrument 700 can measure the workpiece S2 placed at the measurement position PJ2 by the table 1, the workpiece S2 can be precisely measured.
- the three-dimensional measuring apparatus may include the table device 100A according to the present embodiment, or may include a transport device including the table device 100A. Since the workpiece to be measured is supported by the table 1, the three-dimensional measuring apparatus can measure the workpiece placed at the target position, and therefore can accurately measure the workpiece.
- FIG. 22 is a diagram illustrating an example of a precision machine 800 including the table device 100A (100B to 100J) according to the present embodiment.
- the precision machine 800 is a precision machine capable of performing precision machining will be described.
- the precision processing machine 800 processes the workpiece S3.
- the precision processing machine 800 includes a machining center, and includes a table device 100A and a processing head 801.
- the processing head 801 functions as a processing unit that processes the workpiece S3 supported by the table 1 of the table apparatus 100A.
- the processing head 801 functions as a processing unit that processes the workpiece S3 supported by the table 1 of the table apparatus 100A.
- the processing head 801 has a processing tool and processes the workpiece S3 supported by the table 1 of the table apparatus 100A with the processing tool.
- the machining head 801 is a mechanism for cutting the workpiece S3.
- the machining head 801 moves the machining tool in the Z-axis direction orthogonal to the movement direction of the table 1.
- the precision processing machine 800 can move the processing tool and the work S3 relatively by moving the work S3 in the XY plane with the table apparatus 100A and moving the processing head 801 in the Z-axis direction.
- the precision processing machine 800 can process the workpiece S3 on the table 1 arranged at the processing position (target position), the workpiece S3 can be precisely processed.
- the table 1 is moved in the XY plane (in the horizontal plane).
- the table 1 may be moved in a direction inclined with respect to the XY plane. That is, the XY plane may be parallel to the horizontal plane or may be inclined with respect to the horizontal plane.
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Abstract
Description
第1実施形態について説明する。図1は、本実施形態に係るテーブル装置100Aの一例を示す平面図である。図2は、本実施形態に係るテーブル装置100Aの一例を示す側断面図である。図2は、図1のA-A線矢視図に相当する。
第2実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第3実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第4実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第5実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第6実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第7実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第8実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第9実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第10実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第11実施形態について説明する。以下の説明において、上述の実施形態と同一又は同等の構成部分については同一の符号を付し、その説明を簡略又は省略する。
第12実施形態について説明する。図21は、本実施形態に係るテーブル装置100A(100B~100J)を備える精密機械700の一例を示す図である。本実施形態においては、精密機械700が、精密機器のようなワークを精密に測定する精密測定機である例について説明する。
第13実施形態について説明する。図22は、本実施形態に係るテーブル装置100A(100B~100J)を備える精密機械800の一例を示す図である。本実施形態においては、精密機械800が、精密加工を実施可能な精密加工機である例について説明する。
1A 上面
1B 下面
1H 内部空間
2 ベース部材
2A 上面(ガイド面)
3 連結装置
4 回転軸受
4A 内輪
4B 外輪
4C ボール
5 ロッド部材
5F フランジ部
5L ロッド部
6X 第1支持部材
6Y 第2支持部材
7 アクチュエータ
7X 第1アクチュエータ
7Y 第2アクチュエータ
7P 予圧アクチュエータ
8 移動システム
9 第1駆動装置
10 第2駆動装置
11 第1リニアベアリング
12 第1ガイド部材
13 第3リニアベアリング
14 第3ガイド部材
13B 第5リニアベアリング
14B 第5ガイド部材
15 ボールねじ機構
15X 第1ボールねじ機構
15Y 第2ボールねじ機構
16 カップリング
17 ケーシング
18 第2ガイド部材
19 第2リニアベアリング
20 第4ガイド部材
21 第4リニアベアリング
20B 第6ガイド部材
21B 第6リニアベアリング
22 接続部材
23 接続部材
30 プレーンガイド装置
30B プレーンガイド装置
31 ボール
32 支持板
33 スライド部材
33F フランジ部
33L ロッド部
34 ガイド軸受
35 駆動素子
36 固定部材
37 スペーサ部材
50 補助ガイド装置
60 予圧装置
63 第7リニアベアリング
64 第7ガイド部材
70 第8ガイド部材
71 第8リニアベアリング
73 接続部材
80Y ガイド装置
81 第9ガイド部材
82 第9リニアベアリング
100A テーブル装置
100B テーブル装置
100C テーブル装置
100D テーブル装置
100E テーブル装置
100F テーブル装置
100G テーブル装置
100H テーブル装置
100I テーブル装置
100J テーブル装置
200 チャンバ装置
200K 開口
250 ベローズ
260 支持装置
500 フラットパネルディスプレイ製造装置
700 精密機械(精密測定機)
800 精密機械(精密加工機)
AX テーブル中心軸
DP 予圧駆動軸
DX 第1駆動軸
DY 第2駆動軸
G 間隙
S ワーク
Claims (14)
- ガイド面を有するベース部材と、
前記ベース部材に支持され、前記ガイド面と平行な所定面内の第1軸と平行な第1軸方向、前記第1軸と直交する前記所定面内の第2軸と平行な第2軸方向、及び前記所定面と直交する第3軸と平行なテーブル中心軸を中心に回転可能なテーブルと、
前記テーブルに前記第1軸方向の力を与える第1駆動装置と、
前記テーブルに前記第2軸方向の力を与える第2駆動装置と、
を備え、
前記第1駆動装置は、前記ベース部材に支持され、前記テーブルを前記第1軸方向に移動するための動力を発生する第1アクチュエータと、前記テーブルと連結され、前記第1アクチュエータの作動により前記第1軸と平行な第1駆動軸に沿って移動する第1可動部材と、を有し、
前記第2駆動装置は、前記ベース部材に支持され、前記テーブルを前記第2軸方向に移動するための動力を発生する第2アクチュエータと、前記テーブルと連結され、前記第2アクチュエータの作動により前記第2軸と平行な第2駆動軸に沿って移動する第2可動部材と、を有し、
前記第1駆動装置は、前記第2軸方向における前記テーブル中心軸の位置と前記第1駆動軸の位置とが一致するように1つだけ設けられ、
前記第2駆動装置は、前記第1軸方向における前記テーブル中心軸の位置と前記第2駆動軸の位置とが異なるように少なくとも2つ設けられ、
前記第1可動部材は、前記ベース部材に設けられた第1ガイド部材にガイドされ、前記第1駆動軸に沿って移動する第1リニアベアリングと、前記第1リニアベアリングに固定された第1ロッド部材の周囲に配置され、前記第3軸と平行な第1ロッド中心軸を中心に前記第1ロッド部材に対して相対回転可能な第1回転軸受と、前記第1回転軸受に接続され、前記第1軸方向の前記テーブルの端部に固定された第2ガイド部材に前記第2軸方向にガイドされる第2リニアベアリングと、を含む、
テーブル装置。 - 前記第2可動部材は、前記ベース部材に設けられた第3ガイド部材にガイドされ、前記第2駆動軸に沿って移動する第3リニアベアリングと、前記第3リニアベアリングに固定された第2ロッド部材の周囲に配置され、前記第3軸と平行な第2ロッド中心軸を中心に前記第2ロッド部材に対して相対回転可能な第2回転軸受と、前記第2回転軸受に接続され、前記第2軸方向の前記テーブルの端部に固定された第4ガイド部材に前記第1軸方向にガイドされる第4リニアベアリングと、を含む、
請求項1に記載のテーブル装置。 - 前記第2駆動装置は、前記第2軸方向の前記テーブルの一方の端部に接続され、
前記ベース部材に設けられた第5ガイド部材にガイドされ、前記第2軸方向に移動する第5リニアベアリングと、
前記第5リニアベアリングに固定された第3ロッド部材の周囲に配置され、前記第3軸と平行な第3ロッド中心軸を中心に前記第3ロッド部材に対して相対回転可能な第3回転軸受と、
前記第3回転軸受に接続され、前記第2軸方向の前記テーブルの他方の端部に固定された第6ガイド部材に前記第1軸方向にガイドされる第6リニアベアリングと、
を有する、
請求項1又は請求項2に記載のテーブル装置。 - 少なくとも2つの前記第2駆動装置のうち、1つの前記第2駆動装置は、前記第2軸方向の前記テーブルの一方の端部に接続され、1つの前記第2駆動装置は、前記第2軸方向の前記テーブルの他方の端部に接続される、
請求項1から請求項3のいずれか一項に記載のテーブル装置。 - 前記テーブルの下面と前記ベース部材のガイド面との間に配置され、前記テーブルの下面と前記ベース部材のガイド面とが間隙を介して対向する状態で、前記テーブルを前記所定面と平行な方向にガイドするプレーンガイド装置を備える、
請求項1から請求項4のいずれか一項に記載のテーブル装置。 - 前記プレーンガイド装置は、ロッド状のスライド部材を有し、
前記テーブルに支持され、前記第3軸と平行な第3軸方向に前記スライド部材を移動可能に支持するガイド軸受を備える、
請求項5に記載のテーブル装置。 - 前記第3軸方向に前記プレーンガイド装置を移動する駆動素子を備える、
請求項6に記載のテーブル装置。 - 前記テーブルに前記テーブル中心軸を中心とする回転方向の力を予め与える予圧装置を備える、
請求項1から請求項7のいずれか一項に記載のテーブル装置。 - 前記予圧装置は、前記ベース部材に支持され、前記テーブルを前記第2軸方向に移動するための動力を発生する予圧アクチュエータと、前記テーブルと連結され、前記予圧アクチュエータの作動により前記第2軸と平行な予圧駆動軸に沿って移動する予圧可動部材と、を有し、
前記予圧装置は、前記第1軸方向における前記テーブル中心軸の位置と前記予圧駆動軸の位置とが異なるように設けられる、
請求項8に記載のテーブル装置。 - 前記予圧可動部材は、前記ベース部材に設けられた第7ガイド部材にガイドされ、前記予圧駆動軸に沿って移動する第7リニアベアリングと、前記第7リニアベアリングに固定された第4ロッド部材の周囲に配置され、前記第3軸と平行な第4ロッド中心軸を中心に前記第4ロッド部材に対して相対回転可能な第4回転軸受と、前記第4回転軸受に接続され、前記第2軸方向の前記テーブルの端部に固定された第8ガイド部材に前記第1軸方向にガイドされる第8リニアベアリングと、を含む、
請求項9に記載のテーブル装置。 - 前記予圧装置は、前記第1軸方向における前記テーブル中心軸の位置と前記予圧駆動軸の位置とが異なるように少なくとも2つ設けられ、
少なくとも2つの前記予圧装置が前記テーブルに与える力は、異なる、
請求項9又は請求項10に記載のテーブル装置。 - 請求項1から請求項11のいずれか一項に記載のテーブル装置を備え、
前記テーブル装置の前記テーブルに支持されたワークの位置を決定する、
位置決め装置。 - 請求項1から請求項11のいずれか一項に記載のテーブル装置と、
前記テーブルに支持されたワークを処理する処理部と、
を備えるフラットパネルディスプレイ製造装置。 - 請求項1から請求項11のいずれか一項に記載のテーブル装置と、
前記テーブルに支持されたワークを処理する処理部と、
を備える精密機械。
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