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JP2008056366A - Turntable device - Google Patents

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JP2008056366A
JP2008056366A JP2006231667A JP2006231667A JP2008056366A JP 2008056366 A JP2008056366 A JP 2008056366A JP 2006231667 A JP2006231667 A JP 2006231667A JP 2006231667 A JP2006231667 A JP 2006231667A JP 2008056366 A JP2008056366 A JP 2008056366A
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Prior art keywords
roller
transfer device
turntable
article
conveyor
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JP2006231667A
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JP4936215B2 (en
Inventor
Eiji Sakata
英次 佐方
Masao Koryu
昌生 幸柳
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Murata Machinery Ltd
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Murata Machinery Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a transfer device capable of restricting flexure of the transfer device caused by an eccentric load at transfer time when letting an article advance and retract by operating a conveyor without increasing the occurrence of dust and vibration. <P>SOLUTION: This turntable device 8 is constituted by putting the conveyor 10 on a turntable main body 12. Slopes 14 to 17 are arranged in four sections on a bottom face of the turntable device 8 and free rollers 18 to 21 are arranged on a carrier 4 side to restrict the flexure of the turntable device 8 when letting the article advance by the conveyor 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、ターンテーブル本体上に、コンベヤやスライドフォーク、スカラアームなどの移載装置を搭載したターンテーブル装置に関し、特に物品を移載する際の移載装置のたわみを制限することに関する。   The present invention relates to a turntable device in which a transfer device such as a conveyor, a slide fork, or a SCARA arm is mounted on a turntable body, and more particularly to limiting the deflection of the transfer device when transferring an article.

ターンテーブル本体上に移載装置を搭載したターンテーブル装置が知られている（例えば特許文献１）。ところでこのようなターンテーブル装置では、移載装置を動作させて物品を進退させると、移載装置に偏荷重が加わる。移載装置の剛性を増さずに、たわみを解消するため、移載装置の底面をベースで支持しながら旋回させることが考えられる。しかしこのようにすると、支持部との接触に基づく発塵や振動が発生するため、クリーンルーム内で使用するには不向きである。
特開２００３−２０５４８８号公報 A turntable device in which a transfer device is mounted on a turntable body is known (for example, Patent Document 1). By the way, in such a turntable device, when the transfer device is operated to move the article forward and backward, an offset load is applied to the transfer device. In order to eliminate the deflection without increasing the rigidity of the transfer device, it is conceivable to turn the transfer device while supporting the bottom surface of the transfer device with the base. However, if it does in this way, since dust generation and vibration based on contact with a support part will generate | occur | produce, it is unsuitable for using in a clean room.
JP 2003-205488 A

この発明の課題は、発塵や振動を増さずに、物品の移載時の偏荷重による移載装置のたわみを制限することにある。
請求項２の発明での追加の課題は、そのための具体的な構成を提供することにある。
請求項３の発明での追加の課題は、発塵や振動をより確実に抑制することにある。 An object of the present invention is to limit the deflection of a transfer device due to an uneven load when transferring an article without increasing dust generation or vibration.
An additional problem in the invention of claim 2 is to provide a specific configuration therefor.
An additional problem in the invention of claim 3 is to more reliably suppress dust generation and vibration.

この発明は、移載装置を搭載したターンテーブル本体を、移載装置とベースとの間に隙間が生じるように配置したターンテーブル装置において、
平坦な突き出し面を備えた突き出し部材とローラとを、移載装置とベースとの間に各々複数箇所に間隔を開けて配置し、その一方を移載装置に、他方をベースに配置することにより、前記移載装置が物品を移載する角度位置にターンテーブル本体を旋回させた際に、移載装置を前記突き出し部材とローラとを介してベースにより支持し、前記角度位置から離れると、前記突き出し部材とローラとを介しては、移載装置がベースにより支持されなくなるようにしたことを特徴とする。 This invention is a turntable device in which a turntable body on which a transfer device is mounted is arranged so that a gap is generated between the transfer device and a base.
By arranging a protruding member and a roller having a flat protruding surface with a plurality of spaces between the transfer device and the base, and placing one on the transfer device and the other on the base. When the turntable body is turned to the angular position where the transfer device transfers the article, the transfer device is supported by the base via the protruding member and the roller, and when the transfer device is separated from the angular position, The transfer device is not supported by the base via the protruding member and the roller.

好ましくは、前記物品を移載する角度位置は少なくとも２箇所有り、前記ターンテーブル本体の旋回中心から第１の半径位置と、該第１の半径位置から前記ローラ及び突き出し部材の幅の平均値以上離れた第２の半径位置の各々に、前記突き出し部材と前記ローラとを配置することにより、物品を移載する角度位置でのみ、突き出し部材とローラとを接触させる。   Preferably, there are at least two angular positions for transferring the article, and the first radial position from the turning center of the turntable body, and the average value of the width of the roller and the protruding member from the first radial position is greater than or equal to By disposing the protruding member and the roller at each of the separated second radial positions, the protruding member and the roller are brought into contact only at an angular position at which the article is transferred.

また好ましくは、前記移載装置が所定値以上たわむと、突き出し部材とローラとが接触するように、前記突き出し部材と前記ローラとの間に隙間を設ける。   Preferably, a gap is provided between the projecting member and the roller so that the projecting member and the roller come into contact with each other when the transfer device bends a predetermined value or more.

この発明では、物品を移載する角度位置にターンテーブル本体を旋回させると、移載装置は突き出し部材とローラとを介してベースにより支持されて、移載時のたわみが制限され、移載装置の剛性を高くする必要がない。また突き出し部材とローラとは物品を移載する角度から離れると接触しなくなるので、ターンテーブル装置を旋回させる際の突き出し部材とローラとの接触による発塵や振動を少なくできる。   In this invention, when the turntable body is turned to the angular position to transfer the article, the transfer device is supported by the base via the protruding member and the roller, and the deflection at the time of transfer is limited, and the transfer device There is no need to increase the rigidity. Further, since the protruding member and the roller are not in contact with each other when they are separated from the angle at which the article is transferred, dust generation and vibration due to the contact between the protruding member and the roller when the turntable device is turned can be reduced.

請求項２の発明では、物品を移載する角度位置は少なくとも２箇所有り、複数の突き出し部材と複数のローラとを各々、ターンテーブル本体の旋回中心からの半径位置を第１の半径位置と第２の半径位置とに変えて配置する。また２つの半径位置はローラと突き出し部材の幅の平均値以上離れている。このため、文字通りに物品を移載する角度位置でのみ、突き出し部材とローラとが接触する。この結果、突き出し部材とローラとの接触による発塵や振動をさらに少なくできる。   In the invention of claim 2, there are at least two angular positions for transferring the article, the plurality of protruding members and the plurality of rollers are respectively set, and the radial position from the turning center of the turntable body is set to the first radial position and the first radial position. Change to the radial position of 2. The two radial positions are separated from each other by the average value of the widths of the roller and the protruding member. For this reason, the protruding member and the roller contact only at an angular position where the article is literally transferred. As a result, dust generation and vibration due to contact between the protruding member and the roller can be further reduced.

請求項３の発明では、突き出し部材とローラとの間に隙間を設けて、移載装置が所定値以上たわんだ時にのみ突き出し部材とローラとを接触させるので、振動や発塵をさらに少なくできる。   According to the third aspect of the present invention, a clearance is provided between the protruding member and the roller, and the protruding member and the roller are brought into contact only when the transfer device is bent by a predetermined value or more, so that vibration and dust generation can be further reduced.

以下に本発明を実施するための最適実施例を示す。   In the following, an optimum embodiment for carrying out the present invention will be shown.

図１〜図４に無人搬送車２を例にターンテーブル装置８の実施例を示すが、ターンテーブル装置８はスタッカークレーンなどの他の搬送台車に搭載しても良く、あるいは地上側のステーションなどに配置しても良い。   1 to 4 show an embodiment of the turntable device 8 by taking the automatic guided vehicle 2 as an example. The turntable device 8 may be mounted on another transport cart such as a stacker crane, or a station on the ground side. You may arrange in.

図１において４は台車で、その上面をベースとし、６はシャッタで、物品を移載する時以外は閉じておき、図示しないファンフィルタユニットからのクリーンエアの雰囲気を台車４内に形成する。ターンテーブル装置８は、ターンテーブル本体１２上に、ローラコンベヤなどのコンベヤ１０を搭載したもので、コンベヤ１０に代えてスライドフォークやスカラアームなどの他の移載装置を搭載してもよい。コンベヤ１０の底面に、角度位置を変えて４箇所にスロープ１４〜１７を設け、台車４の上面のベース側にも角度位置を変えて４箇所にフリーローラ１８〜２１を設ける。スロープ１４，１５とフリーローラ１８，１９はターンテーブル本体１２の旋回中心からの半径が共通で、スロープ１６，１７とフリーローラ２０，２１はターンテーブル本体１２の旋回中心からの半径が共通で、これらの半径は異なっている。この結果、ターンテーブル本体１２を物品の移載角度に旋回させた時にのみ、スロープ１４〜１７とフリーローラ１８〜２１とが接触する。   In FIG. 1, reference numeral 4 denotes a carriage, the upper surface of which is a base, 6 is a shutter, which is closed except when an article is transferred, and forms an atmosphere of clean air from a fan filter unit (not shown) in the carriage 4. The turntable device 8 is a device in which a conveyor 10 such as a roller conveyor is mounted on the turntable main body 12. Instead of the conveyor 10, another transfer device such as a slide fork or a SCARA arm may be mounted. On the bottom surface of the conveyor 10, slopes 14 to 17 are provided at four locations by changing the angular position, and free rollers 18 to 21 are provided at four locations on the base side of the top surface of the carriage 4. The slopes 14, 15 and the free rollers 18, 19 have a common radius from the turning center of the turntable body 12, and the slopes 16, 17 and the free rollers 20, 21 have a common radius from the turning center of the turntable body 12, These radii are different. As a result, the slopes 14 to 17 and the free rollers 18 to 21 come into contact only when the turntable body 12 is turned to the article transfer angle.

図２に示すように、コンベヤ１０を動作させて物品２２を前進させると、コンベヤ１０に偏荷重が加わる。そこでこの偏荷重によるコンベヤ１０のたわみを、スロープ１４〜１７とフリーローラ１８〜２１とで制限しながら、これらの接触による発塵や振動を防止することが課題である。また物品２２は例えば液晶基板や半導体などのカセットとし、向きがあるものとする。そこでロードポートなどに物品２２を所定の向きで移載するために、ターンテーブル本体１２を用いる。   As shown in FIG. 2, when the article 10 is moved forward by operating the conveyor 10, an offset load is applied to the conveyor 10. Therefore, it is a problem to prevent dust generation and vibration due to these contacts while restricting the deflection of the conveyor 10 due to this uneven load by the slopes 14 to 17 and the free rollers 18 to 21. The article 22 is a cassette such as a liquid crystal substrate or a semiconductor, and has an orientation. Therefore, the turntable body 12 is used to transfer the article 22 to a load port or the like in a predetermined direction.

無人搬送車２が走行する場合、コンベヤ１０は例えば図３の向きをとり、この向きを中立位置という。中立位置からターンテーブル本体１２を時計回りあるいは反時計回りにそれぞれ９０°ずつ旋回させた向きが移載位置で、無人搬送車２は走行方向の左右に 所定の向きで物品２２を移載できる。図３の外側の鎖線２４は、ターンテーブル装置８の干渉範囲を示し、中間の鎖線２５はコンベヤ１０に取り付けられたスロープ１４，１５の干渉範囲を、内側の鎖線２６はスロープ１６，１７の干渉範囲を示す。干渉範囲２５，２６は、ターンテーブル本体１２の中心からの半径が異なる。スロープ１４，１５とフリーローラ１８，１９は第１の半径で、スロープ１６，１７とフリーローラ２０，２１は第２の半径で配置され、これらの半径は、スロープ１４〜１７やフリーローラ１８〜２１の、旋回中心からの軸方向に沿った幅以上異なっている。なおスロープ１４〜１７とフリーローラ１８〜２１との幅が異なる場合、これらの幅の平均値以上、第１の半径と第２の半径とが異なればよい。実施例ではスロープ１４〜１７をコンベヤ１０の底面側に、フリーローラ１８〜２１をベース側に配置するが、ベース側にスロープ１４〜１７を配置し、コンベヤ１０の底面側にフリーローラ１８〜２１を配置しても良い。   When the automatic guided vehicle 2 travels, the conveyor 10 takes the direction shown in FIG. 3, for example, and this direction is called a neutral position. The direction in which the turntable body 12 is turned 90 ° clockwise or counterclockwise from the neutral position is the transfer position, and the automatic guided vehicle 2 can transfer the article 22 in a predetermined direction to the left and right of the traveling direction. An outer chain line 24 in FIG. 3 indicates an interference range of the turntable device 8, an intermediate chain line 25 indicates an interference range of the slopes 14 and 15 attached to the conveyor 10, and an inner chain line 26 indicates an interference of the slopes 16 and 17. Indicates the range. The interference ranges 25 and 26 have different radii from the center of the turntable body 12. The slopes 14 and 15 and the free rollers 18 and 19 are arranged with a first radius, and the slopes 16 and 17 and the free rollers 20 and 21 are arranged with a second radius, and these radii are the slopes 14 to 17 and the free rollers 18 to 19. 21 differs by more than the width along the axial direction from the turning center. In addition, when the widths of the slopes 14 to 17 and the free rollers 18 to 21 are different, the first radius and the second radius may be different from each other by an average value of these widths or more. In the embodiment, the slopes 14 to 17 are arranged on the bottom side of the conveyor 10 and the free rollers 18 to 21 are arranged on the base side. However, the slopes 14 to 17 are arranged on the base side and the free rollers 18 to 21 are arranged on the bottom side of the conveyor 10. May be arranged.

物品を移載する向きは、図３の紙面上の上向きと下向き（無人搬送車２の走行方向の左右方向）の２方向で、図３の上向きに移載する場合、スロープ１４がフリーローラ１８で支持され、スロープ１５がフリーローラ１９で支持され、スロープ１６がフリーローラ２０で、スロープ１７がフリーローラ２１で支持される。図３の下向きに物品を移載する場合、スロープ１４がフリーローラ１９で、スロープ１５がフリーローラ１８で、スロープ１６がフリーローラ２１で、スロープ１７がフリーローラ２０で、それぞれ支持される。   The direction in which the article is transferred is upward and downward on the paper surface of FIG. 3 (left and right direction of the traveling direction of the automatic guided vehicle 2). When the article 14 is transferred upward in FIG. The slope 15 is supported by a free roller 19, the slope 16 is supported by a free roller 20, and the slope 17 is supported by a free roller 21. When the article is transferred downward in FIG. 3, the slope 14 is supported by the free roller 19, the slope 15 is supported by the free roller 18, the slope 16 is supported by the free roller 21, and the slope 17 is supported by the free roller 20.

図４にスロープ１４とフリーローラ１８を例に、これらの構造を示すが、他のスロープ１５〜１７やフリーローラ１９〜２１も同様である。スロープ１４はその左右に傾斜面２９を、中央部に平坦面２８を備え、平坦面２８でコンベヤ１０から最も下側に突き出している。フリーローラ１４は台車４の上面のベースにより支持され、その表面は鋼でもウレタンゴムなどでも良い。移載装置１０に物品からの荷重が加わっていない場合、平坦面２８とフリーローラ１８の間に例えば０．０１〜０．５mm程度の隙間が生じるように、クリアランスｃを設け、物品からの荷重が加わった状態で移載装置１０を動作させて、偏荷重が働いた時にのみ平坦面２８がフリーローラ１８で支持されるようにする。この結果、物品の移載を行わず、単にコンベヤ１０を旋回させている場合には、スロープ１４〜１７とフリーローラ１８〜２１とが接触せず、これに伴う発塵や振動がない。   FIG. 4 shows the structure of the slope 14 and the free roller 18 as an example, but the other slopes 15 to 17 and the free rollers 19 to 21 are the same. The slope 14 has inclined surfaces 29 on the left and right sides thereof and a flat surface 28 at the center, and the flat surface 28 protrudes downward from the conveyor 10. The free roller 14 is supported by a base on the upper surface of the carriage 4 and the surface thereof may be steel or urethane rubber. When the load from the article is not applied to the transfer device 10, a clearance c is provided so that a gap of, for example, about 0.01 to 0.5 mm is generated between the flat surface 28 and the free roller 18. The transfer apparatus 10 is operated in a state in which the flat surface 28 is supported by the free roller 18 only when an offset load is applied. As a result, when the article 10 is not transferred and the conveyor 10 is simply swiveled, the slopes 14 to 17 and the free rollers 18 to 21 are not in contact with each other, and there is no dust generation or vibration associated therewith.

実施例では以下の効果が得られる。
(1) コンベヤ１０の底面をスロープ１４〜１７とフリーローラ１８〜２１で支持するので、移載時の物品による偏荷重を、コンベヤ１０の剛性を増さずに支持できる。
(2) スロープ１４〜１７とフリーローラ１８〜２１とが接触するのは、ターンテーブル本体１２を物品を移載する角度位置に旋回させ、かつコンベヤ１０を動作させて物品からの偏荷重でコンベヤ１０がクリアランス以上たわんだ時のみである。ターンテーブル本体１２を動作させている間は、スロープ１４〜１７とフリーローラ１８〜２１との接触がないので、発塵や接触に伴う振動を無くすことができる。
(3) これらのため、クリーンルーム内で無人搬送車２を使用した場合、スロープ１４〜１７やフリーローラ１８〜２１を設けたことによる物品の汚染が無い。
In the embodiment, the following effects can be obtained.
(1) Since the bottom surface of the conveyor 10 is supported by the slopes 14 to 17 and the free rollers 18 to 21, it is possible to support the uneven load caused by the articles during transfer without increasing the rigidity of the conveyor 10.
(2) The slopes 14 to 17 and the free rollers 18 to 21 are in contact with each other by turning the turntable main body 12 to an angular position for transferring the article and operating the conveyor 10 due to the uneven load from the article. Only when 10 is deflected more than clearance. While the turntable body 12 is operating, there is no contact between the slopes 14-17 and the free rollers 18-21, so that dust generation and vibration associated with contact can be eliminated.
(3) For these reasons, when the automated guided vehicle 2 is used in a clean room, there is no contamination of articles due to the provision of the slopes 14-17 and the free rollers 18-21.

実施例の無人搬送車の平面図Plan view of the automatic guided vehicle of the embodiment 実施例のターンテーブル装置でコンベヤを動作させて、物品を前進させた姿を示す平面図The top view which shows the figure which operated the conveyor with the turntable apparatus of an Example, and advanced the articles | goods コンベヤを中立位置に配置した際の、スロープとフリーローラとの配置を模式的に示す平面図Plan view schematically showing the arrangement of the slope and free rollers when the conveyor is placed in the neutral position 実施例でのスロープとフリーローラとを示す要部部分拡大側面図The principal part enlarged side view which shows the slope and free roller in an Example

符号の説明Explanation of symbols

２ 無人搬送車
４ 台車
６ シャッタ
８ ターンテーブル装置
１０ コンベヤ
１２ ターンテーブル本体
１４〜１７ スロープ
１８〜２１ フリーローラ
２２ 物品
２４ ターンテーブル装置の干渉範囲
２５ スロープ１４，１５の干渉範囲
２６ スロープ１６，１７の干渉範囲
２８ 平坦面
２９ 傾斜面
ｃ クリアランス 2 Automatic guided vehicle 4 Cart 6 Shutter 8 Turntable device 10 Conveyor 12 Turntable body 14 to 17 Slope 18 to 21 Free roller 22 Article 24 Interference range 25 of turntable device 26 Interference range 26 of slopes 14 and 15 Slope 16 and 17 Interference range 28 Flat surface 29 Inclined surface c Clearance

Claims (3)

移載装置を搭載したターンテーブル本体を、移載装置とベースとの間に隙間が生じるように配置したターンテーブル装置において、
平坦な突き出し面を備えた突き出し部材とローラとを、移載装置とベースとの間に各々複数箇所に間隔を開けて配置し、その一方を移載装置に、他方をベースに配置することにより、前記移載装置が物品を移載する角度位置にターンテーブル本体を旋回させた際に、移載装置を前記突き出し部材とローラとを介してベースにより支持し、前記角度位置から離れると、前記突き出し部材とローラとを介しては、移載装置がベースにより支持されなくなるようにしたことを特徴とする、ターンテーブル装置。 In the turntable device in which the turntable body mounted with the transfer device is arranged so that a gap is generated between the transfer device and the base,
By arranging a protruding member and a roller having a flat protruding surface with a plurality of spaces between the transfer device and the base, and placing one on the transfer device and the other on the base. When the turntable body is turned to the angular position where the transfer device transfers the article, the transfer device is supported by the base via the protruding member and the roller, and when the transfer device is separated from the angular position, A turntable device, wherein the transfer device is not supported by the base via the protruding member and the roller. 前記物品を移載する角度位置は少なくとも２箇所有り、前記ターンテーブル本体の旋回中心から第１の半径位置と、該第１の半径位置から前記ローラ及び突き出し部材の幅の平均値以上離れた第２の半径位置の各々に、前記突き出し部材と前記ローラとを配置することにより、物品を移載する角度位置でのみ、突き出し部材とローラとが接触するようにしたことを特徴とする、請求項１のターンテーブル装置。 There are at least two angular positions for transferring the article, a first radial position from the turning center of the turntable main body, and a first radial position away from the first radial position by more than an average value of the width of the roller and the protruding member. The protruding member and the roller are arranged at each of the two radial positions so that the protruding member and the roller are in contact with each other only at an angular position where the article is transferred. 1 turntable device. 前記移載装置が所定値以上たわむと、突き出し部材とローラとが接触するように、前記突き出し部材と前記ローラとの間に隙間を設けたことを特徴とする、請求項１または２のターンテーブル装置。
The turntable according to claim 1 or 2, wherein a gap is provided between the projecting member and the roller so that the projecting member and the roller come into contact with each other when the transfer device bends more than a predetermined value. apparatus.
JP2006231667A 2006-08-29 2006-08-29 Turntable device Expired - Fee Related JP4936215B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014142513A1 (en) * 2013-03-11 2014-09-18 Koo Kyung Bon Ball array transfer module and transfer device comprising same
JP2020032804A (en) * 2018-08-28 2020-03-05 三菱ロジスネクスト株式会社 Transportation system

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Publication number Priority date Publication date Assignee Title
JPS566821A (en) * 1979-06-28 1981-01-24 Mitsui Concrete Kogyo Kk Reinforced concrete pile
JPH08319020A (en) * 1995-05-22 1996-12-03 Sekisui Chem Co Ltd Device and method for conveying conveyer
JP2003205488A (en) * 2002-01-11 2003-07-22 Murata Mach Ltd Turning mechanism and transfer device provided therewith
JP2003221114A (en) * 2002-01-31 2003-08-05 Hirata Corp Revolving conveyor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS566821A (en) * 1979-06-28 1981-01-24 Mitsui Concrete Kogyo Kk Reinforced concrete pile
JPH08319020A (en) * 1995-05-22 1996-12-03 Sekisui Chem Co Ltd Device and method for conveying conveyer
JP2003205488A (en) * 2002-01-11 2003-07-22 Murata Mach Ltd Turning mechanism and transfer device provided therewith
JP2003221114A (en) * 2002-01-31 2003-08-05 Hirata Corp Revolving conveyor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014142513A1 (en) * 2013-03-11 2014-09-18 Koo Kyung Bon Ball array transfer module and transfer device comprising same
JP2020032804A (en) * 2018-08-28 2020-03-05 三菱ロジスネクスト株式会社 Transportation system

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