WO2009136567A1 - 物品搬送ロボット装置 - Google Patents
物品搬送ロボット装置 Download PDFInfo
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- WO2009136567A1 WO2009136567A1 PCT/JP2009/058294 JP2009058294W WO2009136567A1 WO 2009136567 A1 WO2009136567 A1 WO 2009136567A1 JP 2009058294 W JP2009058294 W JP 2009058294W WO 2009136567 A1 WO2009136567 A1 WO 2009136567A1
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- WIPO (PCT)
- Prior art keywords
- wiring
- horizontal
- base
- robot
- article
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/0025—Means for supplying energy to the end effector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
- B25J11/0095—Manipulators transporting wafers
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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
- H01L21/677—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 conveying, e.g. between different workstations
- H01L21/67739—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 conveying, e.g. between different workstations into and out of processing chamber
- H01L21/67742—Mechanical parts of transfer devices
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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
- H01L21/677—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 conveying, e.g. between different workstations
- H01L21/67763—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 conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
- H01L21/67766—Mechanical parts of transfer devices
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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
- H01L21/677—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 conveying, e.g. between different workstations
- H01L21/67763—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 conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
- H01L21/67778—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 conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading involving loading and unloading of wafers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20207—Multiple controlling elements for single controlled element
- Y10T74/20305—Robotic arm
- Y10T74/20311—Robotic arm including power cable or connector
Definitions
- the present invention relates to an article carrying robot apparatus for holding an article such as a semiconductor wafer, carrying it to a target position and transferring it.
- a semiconductor wafer transfer robot apparatus is installed in a clean room to take out and hold a semiconductor wafer from a base station and transfer it to a target station according to the next manufacturing process.
- the FIG. 8 shows a schematic configuration of such a semiconductor wafer transfer robot apparatus.
- a semiconductor wafer transfer robot apparatus 100 shown in FIG. 8 is supported by a horizontal base 101, a vertical support 102 that is supported by the horizontal base 101 so as to be movable along the horizontal direction, and a vertical support 102 that can be moved up and down.
- the robot main body 103 includes a robot base 103a supported by the vertical support column 102 so as to be movable up and down, and a plurality of (two in this example) robot arms 103b and 103c connected to the robot base 103a so as to be able to turn horizontally. And a robot hand 103d connected to the robot arm 103c on the distal end side.
- the operation and control wiring / pipe bundle 104 is driven by a motor for horizontal movement of the vertical support column 102, vertical movement of the robot base 103a, and horizontal rotation of the robot arms 103b and 103c and the robot hand 103d. It consists of a power supply cable for a mechanism part (not shown), further compressed air or vacuum piping, a control signal line such as a sensor.
- Such a wiring / pipe bundle 104 is inserted into a base-side protective cylinder 105 made of a rigid pipe that is horizontally fixed on the horizontal base 101 and passes through a flexible cable bear (registered trademark) 106. It is introduced into the inside of the side portion of the vertical column 102 and is distributed and connected to each mechanism.
- the cable bear 106 is indicated by a virtual line.
- a cable bear 106 for example, the one described in Japan and Japanese Patent Application Laid-Open No. 2003-37153 is used.
- the cable bear 106 itself is also rubbed between its component parts and is likely to generate dust.
- the generation of such dust greatly affects product quality. Therefore, measures are also taken to cover the cable bear 106 with another cover. Conversion was inevitable.
- An object of the present invention is to provide an article transport robot apparatus that can reduce the stress on wiring and / or piping while reducing the size of the entire apparatus and is suitable for transporting articles such as semiconductor wafers.
- an article transport robot apparatus includes a horizontal base, a horizontal moving body supported by the horizontal base so as to be movable in the horizontal direction, and an article supported by the horizontal moving body.
- the horizontal moving body includes a vertical support
- the robot body is supported by the vertical support so as to be movable up and down
- the restraint is swingable with the upper end of the vertical support as the fulcrum.
- a base side protection cylinder fixed to the horizontal base is further included, and at least one of the wiring and the piping passes from the base side protection cylinder to the support column side protection cylinder and the fulcrum portion. It is introduced into the vertical column.
- a flexible tube into which at least one of the wiring and piping is inserted is connected between the base side protection cylinder and the support side protection cylinder.
- a sliding agent is applied in the flexible tube.
- the fulcrum portion includes a cylindrical member provided so that an axial center is substantially horizontal at an introduction port portion such as a wiring provided in a side portion of the horizontal moving body, and a radial bearing externally fitted to the cylindrical member And a support ring member externally fitted to the outer ring of the radial bearing, and the restraint is fixedly supported by the support ring member.
- a sealing material for preventing discharge of particles is provided at a connection portion between the horizontal moving body and the restraining body.
- the article is a semiconductor wafer.
- the article transport robot device preferably includes a horizontal base, a vertical column supported by the horizontal base in a movable manner along the horizontal direction, and one or more hands for gripping the article.
- At least one of the wiring and piping is horizontal From inside the rigid base-side protective cylinder fixed to the base, inside the vertical pillar after passing through the above-mentioned fulcrum and inside the rigid pillar-side protective cylinder that is swingably supported by the vertical pillar as the fulcrum. It is introduced in the feature.
- a flexible tube through which at least one of the wiring and the piping is inserted is connected between the base side protection cylinder and the column side protection cylinder.
- a sliding agent is applied in the flexible tube.
- the fulcrum part is a cylindrical member provided so that the axial center is substantially horizontal at an introduction port part such as a wiring established on the side part of the vertical support, and a radial bearing externally fitted to the cylindrical member,
- the support ring member is externally fitted to the outer ring of the radial bearing, and the support-side protection cylinder is fixedly supported by the support ring member.
- the article is a semiconductor wafer.
- a sealing material for preventing particle discharge is provided between the vertical support and the support portion of the introduction port portion such as a wiring.
- the restraint body swings around the fulcrum portion following the horizontal movement of the horizontal moving body along the horizontal base, so that the bending angle of at least one of the wiring and the piping Therefore, the stress of at least one of the wiring and the piping at the bent portion is relieved, and the fatigue wear of at least one of the wiring and the piping and the generation of particles due to this are reduced. Further, the movable range of at least one of the bent portions of the wiring and the piping accompanying the horizontal movement of the horizontal moving body along the horizontal base can be reduced, and the generation factor of particles can be reduced accordingly.
- the restraining body is swingably supported around a fulcrum provided on the horizontal moving body, so that when the horizontal moving body is in the standby position, the restraining body is in a vertical state by its own weight, Since at least one bent portion of the wiring and the piping does not protrude from the side portion of the device, the device can be made compact.
- the apparatus is configured in a compact manner and at least one of the wiring and the piping is not stressed, and the movable range of the bent portion can be reduced, the semiconductor wafer installed in the clean room can be transported.
- its aptitude is greatly improved.
- the bent portion of at least one of the wiring and the piping is protected and horizontal. Smooth bending associated with the horizontal movement of the moving body can be maintained, generation of particles caused by bending stress of the bent portion can be suppressed, and influence on the conveyed product can be avoided.
- a simple flexible tube can be used instead of a conventional large cable bear, etc., and wear and particle generation due to bending stress of the flexible tube itself are suppressed, Contributes to further downsizing of equipment.
- a lubricant is applied to the flexible tube, dust generation due to friction between the flexible tube and at least one of the wiring and piping can be suppressed, and adverse effects due to leakage of particles from the flexible tube. No worries. This is particularly effective when the conveyed product is a semiconductor wafer.
- the fulcrum portion is a cylindrical member provided so that the axis is horizontal at the introduction port portion such as a wiring established on the side portion of the horizontal moving body, and a radial bearing externally fitted to the cylindrical member, If it is configured by a support ring member that is externally fitted to the outer ring of the radial bearing, and the restraint body is fixedly supported on the support ring member, the restraint body accompanying the horizontal movement of the horizontally movable body by the function of the radial bearing. Can be smoothly and accurately performed using the fulcrum portion as a fulcrum, and at least one of wiring and piping from the restraint body to the horizontal moving body can be introduced without difficulty through the cylindrical member. .
- a sealing material is provided at the connecting portion between the horizontal moving body and the restraining body, so that particles generated inside can be prevented from being discharged to the outside, and can be cleaned. Degradation is prevented.
- FIG. 1 is a front view conceptually showing one embodiment of an article carrying robot apparatus of the present invention.
- FIG. 2 is a cross-sectional view taken along a section line II-II in FIG.
- FIG. 3 is a cross-sectional view taken along the section line III-III in FIG.
- FIG. 4 is a cross-sectional view taken along section line IV-IV in FIG. 3.
- FIG. 5 is a cross-sectional view taken along a section line VV in FIG. 1.
- FIG. 6 is a cross-sectional view taken along section line VI-VI in FIG. 5.
- FIGS. 7A to 7D are diagrams for comparing the movements of the article transport robot apparatus of the embodiment and the conventional apparatus, and FIGS. 7A and 7B show the apparatus of the present invention.
- FIG. 7C and FIG. 7D show the movement of the conventional apparatus corresponding thereto. It is a front view which shows the conventional article conveyance robot apparatus notionally.
- FIG. 1 conceptually shows a semiconductor wafer transfer robot apparatus installed in a clean room.
- the illustrated semiconductor wafer transfer robot apparatus 1 includes a horizontal base 2, a vertical support (horizontal moving body) 3 that is supported by the horizontal base 2 so as to be movable in the horizontal direction, and a vertical support 3 that can move up and down.
- the supported article transporting robot main body 4 and the horizontal base 2 and the vertical column 3 are arranged over the robot main body 4 and its related mechanism part, and at least one of operation and control wiring and piping (hereinafter referred to as wiring / piping). And 5).
- the robot body 4 includes a robot base 4a supported by the vertical support column 3 so as to be movable up and down, and a plurality of (main books) connected to the robot base 4a through the vertical support shafts 4ba, 4ca, and 4da so as to be horizontally rotatable.
- the robot arm 4b, 4c of 2) and a robot hand 4d connected to the robot arm 4c on the distal end side so as to be angularly displaceable are included.
- the robot hand 4d at the tip takes out a semiconductor wafer (not shown) as an article to be transferred from a base station (not shown) and moves it in a three-dimensional manner by the connecting relationship in which the hand 4d can be rotated horizontally. It is configured so that it can be transported and transferred to (not shown).
- the robot body 4 can be moved up and down with respect to the vertical support 3 and the vertical support 3 is supported by the horizontal base 2 so as to be movable in the horizontal direction. This establishes a two-dimensional operating mechanism of the robot body 4 within the region.
- the robot body 4 itself is composed of a plurality of robot arms 4b and 4c that are connected to each other so as to be able to turn horizontally, and includes one or more hands 4d that are supported so as to be able to turn horizontally.
- the operation of taking out the article placed on the machine, transporting it to a desired destination station, and transferring it can be arbitrarily executed based on a predetermined operation sequence.
- the robot body 4 has a fork-shaped robot hand 4d at the tip, and picks up a semiconductor wafer or a container containing a plurality of semiconductor wafers placed on the base station, conveys them, and places them on the target station. Repeat the operation.
- an operating mechanism for example, a pinion mechanism of a rack and pinion mechanism for reciprocating the vertical support 3 in the horizontal direction with respect to the horizontal base 2, and a mechanism for moving the robot base 4 a up and down (For example, a ball screw mechanism), a motor as a drive source thereof, a position detection sensor for the vertical support column 3 and the robot base 4a, a control unit, a fluid operation mechanism unit configured by a compressed air pressure source and an absorption source, and the like Has been.
- a ball screw mechanism for example, a motor as a drive source thereof, a position detection sensor for the vertical support column 3 and the robot base 4a, a control unit, a fluid operation mechanism unit configured by a compressed air pressure source and an absorption source, and the like
- the robot base 4a is constituted by an operating mechanism for horizontally turning each of the robot arms 4b and 4c and the robot hand 4d, a drive source such as a motor, these position detection sensors, a compressed air pressure source and an absorption source, and the like.
- a fluid operation mechanism portion and the like are disposed.
- a wiring / pipe bundle 5 composed of these power supply cables for operation or control, compressed air or vacuum pipes, control signal lines, etc. is a rigid pipe fixed horizontally on the horizontal base 2.
- a column-side protection cylinder made of a rigid pipe that is inserted into a base-side protection tube 6 and is bent and passes through a bent portion, and is supported on the side of the vertical column 3 with the upper end serving as a fulcrum 7A within a vertical surface area.
- (Restraining body) 7 is inserted into the vertical support 3 and is introduced into the vertical support 3 through the fulcrum 7A at the top of the vertical support 3 to be distributed and connected to the mechanisms.
- Wiring and piping (not shown) for each mechanism part of the robot base 4a are further introduced from the vertical support 3 into the robot base 4a.
- a flexible tube 8 (see FIG. 5) formed in a bellows shape made of synthetic resin or light metal is connected between the base side protective cylinder 6 and the support side protective cylinder 7 to protect both the wiring / pipe bundle 5.
- the bent portion between the tubes 6 and 7 is covered with the flexible tube 8.
- the flexible tube 8 is shown with a virtual line for convenience. Since the base side protection cylinder 6 and the support column side protection cylinder 7 are formed of rigid pipes, the shape (linearity) of the inserted wiring / pipe bundle 5 is maintained.
- FIGS. 2 to 4 are diagrams for explaining in detail a mechanism for swingingly supporting the column-side protection cylinder 7 with respect to the vertical column 3 with the upper end as a fulcrum 7A.
- the fulcrum portion 7A has a saddle-shaped cross section fixed to a wiring introduction port portion 3a opened on the side of the vertical support column 3 with bolts 9a so that the axis 7o is horizontal. It is constituted by a cylindrical member 9, a radial type bearing (rolling bearing) 10 that is externally fitted to the cylindrical member 9, and a supporting ring member 11 having a bowl-shaped cross section that is externally fitted to the outer ring 10 a of the radial bearing 10.
- the protective cylinder 7 is fixedly supported on the supporting ring member 11 by bolts 11a.
- the inner ring 10 b of the radial bearing 10 is sandwiched between the bowl-shaped portion of the cylindrical member 9 and the positioning ring 9 b, and the inner ring 10 b is fixed to the cylindrical member 9.
- the column-side protection cylinder 7 has a bowl-shaped protection cylinder body 7a having a concave cross section made of a rigid material such as a steel plate, and a lid member 7c fixed to the opening of the bowl-shaped protection cylinder body 7a with a bolt 7b.
- a circular hole 7d is formed in the bottom of the bowl-shaped protective cylinder main body 7a, and the support ring member 11 is fixed around the circular hole 7d by a bolt 11a.
- the outer ring 10a of the bearing 10 is sandwiched between the periphery of the circular hole 7d and the flanged portion of the support ring member 11, and the support-side protection cylinder 7 and the outer ring 10a of the bearing 10 are integrated.
- the column-side protection cylinder 7 is pivoted by the external fitting fixation relationship by the inner ring 10b of the bearing 10 to the cylindrical member 9 fixed to the vertical column 3 and the integral fixation relationship between the column-side protection cylinder 7 and the outer ring 10a of the bearing 10. It can be swung in a vertical plane around the center 7o. Further, in order to prevent generation of particles from between the cylindrical member 9 for fixing the inner ring 10b and the outer ring 10a of the radial bearing 10 and the support ring member 11, circular rings are provided on the outer ring 10a and the inner ring 10b as indicated by reference numerals 12c and 12d.
- a labyrinth seal that is a sealing material in which annular partition walls are alternately formed in the axial direction is disposed.
- the labyrinth seal refers to a non-contact seal that suppresses gas leakage using pressure loss caused by bending a flow path.
- the inside of the vertical support column 3 and the inside of the support column side protection tube 7 are connected via the cylindrical member 9 and the wiring port 3a of the vertical support column 3. Communicate.
- the wiring / pipe bundle 5 introduced from the lower end of the support-side protection cylinder 7 through the flexible tube 8 from the base-side protection cylinder 6 is connected to the vertical support column from the upper end cylindrical member 9 and the wiring introduction port 3a. 3 is distributed and connected to each of the operating mechanisms.
- a U-shaped wiring regulation member 12 is fixed to the introduction side end face of the lower wiring / pipe bundle 5 of the supporting ring member 11 by a bolt 12a.
- the regulating member 12 and the end face of the supporting ring member 11 are connected to each other.
- the wiring / pipe bundle 5 is inserted into the space 12b formed between the two, and is introduced into the vertical column 3. This suppresses the dispersion of the wiring / pipe bundle 5 when the support-side protection cylinder 7 swings, reduces the friction between the wiring / pipe bundles 5, and smoothes the swinging of the support-side protection cylinder 7. I am trying. Since the shape of the space 12b formed by the cutout of the wiring regulating member 12 is various, the wiring / pipe bundle 5 has various thicknesses. Further, in order not to cause scratches or the like on the wiring / pipe bundle 5, it is desirable to form the wiring / pipe bundle 5 with curved portions having no corners.
- FIG. 5 and 6 show the detailed structure of the introduction portion of the wiring / pipe bundle 5 at the lower end of the support column side protective cylinder 7.
- FIG. A lower end lid member 7e is fixed to the lower end portion of the bowl-shaped protective cylinder main body 7a in the support column side protective cylinder 7 by a bolt 7f.
- a circular hole 7ea is formed in the lower end cover member 7e, and a male screw portion 13a of the pipe joint 13 bonded to the distal end of the flexible tube 8 is inserted into the circular hole 7ea.
- a flange portion 13b is formed at the base of the male screw portion 13a, and the lower end lid member 7e is sandwiched between the nut 13c and the flange portion 13b that are screwed into the male screw portion 13a inserted into the circular hole 7ea.
- the lower end cover member 7e and the flexible tube 8 are connected via 13.
- a similar pipe joint (not shown) is bound to the proximal end side of the flexible tube 8 and is connected to the distal end portion of the base side protective cylinder 6.
- the flexible tube 8 and the pipe joint 13 are bound by an adhesive or the like.
- the wiring / pipe bundle 5 introduced into the base side protective cylinder 6 is introduced into the support column side protective cylinder 7 through the flexible tube 8, and the wiring / pipe bundle 5 is bent together with the flexible tube 8 in the flexible tube 8. It is made free.
- the vertical support 3 can reciprocate horizontally along the horizontal base 2 as indicated by an arrow a while maintaining the vertical state as shown in FIG.
- the solid line position in FIG. 1 indicates the standby position
- the two-dot chain line position indicates the maximum movement position of the vertical column 3. Therefore, the distance L between the two positions indicates the maximum movable range of the vertical column 3.
- the column side protection cylinder 7 is brought into a substantially vertical state along the vertical column 3 by its own weight, so that the bent portion of the wiring / pipe bundle 5 is approximately 90. It will be bent at °. In such a bent state, the bent portion of the wiring / pipe bundle 5 does not protrude from the side portion of the vertical column 3, and thus the apparatus is configured compactly.
- the vertical column 3 moves so as to pull the wiring / pipe bundle 5, but the column-side protection cylinder 7 receives the pulling action and becomes a fulcrum. It swings around the portion 7A as a fulcrum and is inclined as shown in FIG. As a result, the bent portion of the wiring / pipe bundle 5 is refracted at an angle larger than 90 °, but is not refracted to 180 ° as in the prior art.
- the stress applied to the wiring / pipe bundle 5 due to this refraction is smaller than that of the prior art, and the fatigue wear of the wiring / pipe bundle 5 due to the stress is suppressed, and dust generation due to this is also suppressed. If a lubricant such as clean room grease is applied to the inner surface of the flexible tube 8, dust generation due to friction between the wiring / pipe bundle 5 and the flexible tube 8 can be suppressed.
- the robot base 4a moves up and down, and the robot arms 4b and 4c and the robot hand 4d turn horizontally to move the semiconductor from the base station.
- the wafer is taken out and held on the robot hand 4d at the tip.
- the vertical support 3 again starts horizontal movement and transports the semiconductor wafer to the target station.
- the semiconductor wafer is moved to the target station by the lifting and lowering movement of the robot base 4a and the horizontal turning movements of the robot arms 4b and 4c and the robot hand 4d. Included.
- Such an operation is repeated in the clean room.
- the horizontal turning range of the robot arms 4b and 4c and the robot hand 4d varies depending on the specifications of the apparatus, but is generally a range of 270 ° around the support shaft 4ba.
- FIGS. 7A to 7D the movement of the support column side protective cylinder 7 will be described in comparison with a conventional example.
- 7A and 7B show the movement of the vertical column 3 in the article transport robot apparatus 1 according to the present invention, and the two-dot chain line in FIG. 7A indicates the initial state of the movement of the vertical column 3.
- 7B shows a state in which the vertical support 3 has moved up to the maximum movement distance L, respectively.
- 7C and 7D show the movement of the vertical support 102 in the conventional apparatus illustrated in FIG. 8 in correspondence with FIGS. 7A and 7B.
- the movable range (the straight line portion between the bending start point at the standby position and the bending start point at the maximum movement position) LM with bending at the bent portion of the wiring / pipe bundle 5 is smaller than 1 ⁇ 2 L (LM ⁇ 1 / 2L).
- the swing angle of the column-side protection cylinder 7 becomes maximum, and the refraction angle of the bent portion of the wiring / pipe bundle 5 becomes larger than that in the case of FIG. It never reaches °. Therefore, the range of the bent portion of the wiring / pipe bundle 5 including the movable range LM can be reduced, which is extremely effective for reducing the size of the apparatus and reducing the generation factors such as dust.
- the movable range with the bent portion of the wiring / pipe bundle 104 (the bending start point at the standby position and the maximum moving position).
- the wiring / pipe bundle 104 moves while maintaining the bending angle at 180 ° at the bending portion.
- the moving part is constantly subjected to stress such as squeezing, and therefore, fatigue wear of the wiring / pipe bundle 104 and associated dust generation are likely to occur.
- the bending angle gradually becomes larger and smaller than 90 °, and this is repeated, but a large refraction angle such as 180 °. None become.
- the semiconductor wafer transfer robot apparatus has been described.
- the present invention is not limited to this, and the present invention can also be applied to transfer robot apparatuses such as other electronic parts and precision parts.
- it is suitable for a transfer robot apparatus for these parts installed in a clean room.
- a horizontal movement mechanism of the vertical support 3, a vertical raising / lowering mechanism of the robot body 4, a horizontal turning mechanism of the robot arms 4 b and 4 c and the robot hand 4 d, and the like are employed in a conventionally known robot device of this type.
- Each mechanism can be applied.
- the radial bearing 10 was shown as a mechanism which rocks the support
- the robot body 4 including one robot hand 4d is described.
- a plurality of robot hands may be provided on the robot arm 4c on the distal end side. Can produce various effects.
- the wiring / pipe bundle 5 may move to some extent in the support-side protective cylinder (restraint) 7.
- the support column side protection cylinder (restraint body) 7 is not necessarily configured by a rigid pipe, and may be flexible as long as the deformation of the wiring / pipe bundle 5 can be limited to some extent.
- the straight tubular support column side protection cylinder 7 is used, but it is not always necessary to have a straight tubular shape, and for example, a shape curved along the bending direction of the wiring / pipe bundle 5 can be used.
- the deformation of the wiring / pipe bundle 5 may be limited by the restraining body (support column side protection cylinder) 7 supported so as to be swingable around the fulcrum portion 7A of the horizontal moving body (vertical support column) 3. .
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- Robotics (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Manipulator (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
Description
本発明の物品搬送ロボット装置によれば、水平移動体の水平基台に沿った水平移動に追動して拘束体が支点部を支点として揺動するので、配線および配管の少なくとも一方の屈曲角度を、従来のように大きく設定する必要がなく、屈曲部における配線および配管の少なくとも一方のストレスが緩和され、配線および配管の少なくとも一方の疲労損耗やこれによるパーティクルの発生が少なくなる。また、水平移動体の水平基台に沿った水平移動に伴う、配線および配管の少なくとも一方の屈曲部の可動範囲も小さくすることができ、それだけパーティクルの発生要因を少なくすることができる。
Claims (8)
- 水平基台と、
前記水平基台に水平方向に移動自在に支持された水平移動体と、
前記水平移動体に支持された物品搬送用ロボット本体と、
前記水平基台から前記ロボット本体に導かれる配線及び配管の少なくとも一方と、
前記水平移動体に設けられた支点部まわりに揺動自在に支持された拘束体であって、前記配線及び配管の少なくとも一方の一部分の変形を制限する拘束体と、を備えたことを特徴とする物品搬送ロボット装置。 - 前記水平移動体は、垂直支柱を含み、
前記ロボット本体は、前記垂直支柱に昇降自在に支持されており、
前記拘束体は、前記垂直支柱の上端部を前記支点部として揺動自在に支持された支柱側保護筒を含むことを特徴とする請求項1記載の物品搬送ロボット装置。 - 前記水平基台に固定された基台側保護筒をさらに含み、
前記配線および配管の少なくとも一方は、前記基台側保護筒内から、前記支柱側保護筒内および前記支点部を経て前記垂直支柱内に導入されていることを特徴とする請求項2記載の物品搬送ロボット装置。 - 前記基台側保護筒および前記支柱側保護筒間には、前記配線および配管の少なくとも一方が挿通されるフレキシブルチューブが連結されていることを特徴とする請求項3に記載の物品搬送ロボット装置。
- 前記フレキシブルチューブ内には、滑動剤が塗布されていることを特徴とする請求項4に記載の物品搬送ロボット装置。
- 前記支点部は、前記水平移動体の側部に開設された配線等導入口部に軸心がほぼ水平となるよう設けられた円筒部材と、前記円筒部材に外嵌されたラジアル軸受と、前記ラジアル軸受の外輪に外嵌された支持用リング部材とよって構成され、
前記拘束体は、前記支持用リング部材に固着支持されていることを特徴とする請求項1~5のいずれか一項に記載の物品搬送ロボット装置。 - 前記水平移動体と前記拘束体との接続部分には、パーティクルの排出を防止するシール材が設けられていることを特徴とする請求項6に記載の物品搬送ロボット装置。
- 前記物品は、半導体ウエハであることを特徴とする請求項1~7のいずれか一項に記載の物品搬送ロボット装置。
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JP2010511049A JP5507450B2 (ja) | 2008-05-09 | 2009-04-27 | 物品搬送ロボット装置 |
US12/990,731 US8746631B2 (en) | 2008-05-09 | 2009-04-27 | Article carrier robot |
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EP (1) | EP2287988B1 (ja) |
JP (1) | JP5507450B2 (ja) |
KR (1) | KR101259681B1 (ja) |
CN (1) | CN101983463B (ja) |
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JP6693546B2 (ja) * | 2018-09-14 | 2020-05-13 | 株式会社安川電機 | 艤装装置およびロボット |
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JP5507450B2 (ja) | 2014-05-28 |
EP2287988A4 (en) | 2011-10-26 |
KR101259681B1 (ko) | 2013-05-02 |
CN101983463A (zh) | 2011-03-02 |
EP2287988B1 (en) | 2016-04-27 |
EP2287988A1 (en) | 2011-02-23 |
US20110054683A1 (en) | 2011-03-03 |
JPWO2009136567A1 (ja) | 2011-09-08 |
KR20100116209A (ko) | 2010-10-29 |
TW201008728A (en) | 2010-03-01 |
CN101983463B (zh) | 2013-06-12 |
US8746631B2 (en) | 2014-06-10 |
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