JP4932611B2 - Car body conveyor - Google Patents

Car body conveyor Download PDF

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JP4932611B2
JP4932611B2 JP2007158193A JP2007158193A JP4932611B2 JP 4932611 B2 JP4932611 B2 JP 4932611B2 JP 2007158193 A JP2007158193 A JP 2007158193A JP 2007158193 A JP2007158193 A JP 2007158193A JP 4932611 B2 JP4932611 B2 JP 4932611B2
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pallet
rack
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pallets
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JP2008308055A (en
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鐘雄 米川
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セントラル自動車株式会社
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この発明は、自動車製造工場の自動車製造組立ラインにおいて自動車ボディを搬送する自動車ボディ搬送装置に関する。   The present invention relates to an automobile body conveying apparatus for conveying an automobile body in an automobile manufacturing assembly line of an automobile manufacturing factory.

自動車製造組立ラインにおいて、搬送パレットを使用して、自動車ボディを工程単位で搬送する場合、従来は図６に示すように複数台、通常は４台の搬送パレット１０１を一本の長い棒状の搬送体１０２にそれぞれ１つずつ設けられている搬送ロックピンで止め、縦列状体で１台の搬送用駆動装置（駆動モータ）１００によって、その一本の搬送体を移動させてその工程の作業を行い、４台全ての作業が終了してから次の工程へ移動搬送していた。   When a car body is transported in units of processes using a transport pallet in a car manufacturing assembly line, conventionally, as shown in FIG. 6, a plurality of, usually four, transport pallets 101 are transported as one long bar. Each of the bodies 102 is stopped by a transport lock pin provided one by one, and the single transport body is moved by one transport drive device (drive motor) 100 in a tandem body to perform the work of the process. It was carried and transferred to the next process after all four operations were completed.

又、工程単位で搬送する方式としては、各工程に搬送パレットを搬送する駆動源を設置しストッパーによって制御するフリクション方式が知られている。しかしフリクション方式による搬送でも、任意の中間位置で正確に自由に停止することはできなかった。   Further, as a method of transporting in units of processes, a friction system is known in which a driving source for transporting a transport pallet is installed in each process and controlled by a stopper. However, even with the conveyance by the friction method, it was not possible to stop freely and accurately at an arbitrary intermediate position.

図６に示す従来例では複数台、例えば４台の搬送パレット１０１を一本の長い棒状の搬送体１０２に搬送方向に縦列に係止し１台の搬送用駆動装置（駆動モータ）によって動かしているため、作業効率を向上させようと搬送速度を増し高速化しようとしても、搬送パレット１０１同士の衝突など危険性があり、トラブルになったときの被害が大きくなる課題があった。   In the conventional example shown in FIG. 6, a plurality of, for example, four transport pallets 101 are locked to a single long rod-shaped transport body 102 in a longitudinal direction in the transport direction and moved by a single transport drive device (drive motor). Therefore, even if it is attempted to increase the conveyance speed to increase the work efficiency, there is a danger such as a collision between the conveyance pallets 101, and there is a problem that damage caused when trouble occurs.

また、４台の搬送パレット１０１を同時に１つの搬送用駆動装置（駆動モータ）１００によって高速で搬送するためには搬送用駆動装置１００の容量の大型化が必要であった。   Further, in order to simultaneously transport the four transport pallets 101 at a high speed by one transport drive device (drive motor) 100, it is necessary to increase the capacity of the transport drive device 100.

更に、従来のように複数台の搬送パレット１０１の全体を同時に同速で搬送するため、中間位置で各々の搬送パレット１０１が、それぞれ自由な位置を選択して停止することができない課題があった。そのため作業用ロボットの作業打点の範囲が限定されてしまう課題があった。   Furthermore, since the entire plurality of transport pallets 101 are transported simultaneously at the same speed as in the prior art, there is a problem that each transport pallet 101 cannot select and stop at a free position at an intermediate position. . For this reason, there is a problem that the range of work hit points of the work robot is limited.

上記課題を解決するために、自動車ボディ搬送装置において、複数の搬送パレットの各々を順次搬送させる搬送用駆動装置を1つの搬送パレットの長さに対応する距離だけ搬送方向において離し、かつ搬送路の左右に互い違いに設け、
各々の搬送パレットは、左右に搬送ロックピンを有し、
各々の搬送用駆動装置は、搬送パレットを左右対応するいずれかの搬送ロックピンと係止可能な係止部を有するラック状体を、１つの搬送パレットの搬送方向長さ分だけ往復移動させることが可能であり、
搬送パレットと係止された各々のラック状体は、下流側の次の搬送用駆動装置の位置まで搬送パレットを搬送した後、搬送パレットと係止解除して元の位置まで戻る作業を順次繰り返すことで複数の搬送パレットを順次搬送させることを特徴とする自動車ボディ搬送装置を提案する。 In order to solve the above problems, in an automobile body transport device, a transport drive device that sequentially transports each of a plurality of transport pallets is separated in the transport direction by a distance corresponding to the length of one transport pallet, and the transport path It is provided alternately on the left and right,
Each transport pallet has transport lock pins on the left and right,
Each transport driving device can reciprocate a rack-shaped body having a locking portion that can lock the transport pallet with either of the left and right transport lock pins corresponding to the length of one transport pallet in the transport direction. Is possible,
Each rack-like body locked to the transfer pallet sequentially repeats the operation of transferring the transfer pallet to the position of the next transfer drive device on the downstream side, then releasing the lock from the transfer pallet and returning to the original position. This proposes an automobile body transport device that sequentially transports a plurality of transport pallets.

更に、自動車ボディ搬送装置において、複数の搬送パレットの各々を順次搬送させる搬送用駆動装置を1つの搬送パレットの長さに対応する距離だけ搬送方向において離し、かつ搬送路の左右に互い違いに設け、
各々の搬送パレットは、左右に搬送ロックピンを有し、
各々の搬送用駆動装置は、搬送パレットを左右対応するいずれかの搬送ロックピンと係止可能な係止部を有するラック状体を、１つの搬送パレットの搬送方向長さ分だけ往復移動させることが可能であり、
予め設定された制御部によって、搬送パレットと係止された各々のラック状体は、各々の自動車ボディの作業状態によって中間位置で適宜停止しつつ、下流側の次の搬送用駆動装置の位置まで搬送パレットを搬送した後、搬送パレットと係止解除して元の位置まで戻る作業を順次繰り返すことで複数の搬送パレットを順次搬送させることを特徴とする自動車ボディ搬送装置を提案する。 Furthermore, in the automobile body transport device, the transport drive device for sequentially transporting each of the plurality of transport pallets is separated in the transport direction by a distance corresponding to the length of one transport pallet, and alternately provided on the left and right of the transport path,
Each transport pallet has transport lock pins on the left and right,
Each transport driving device can reciprocate a rack-shaped body having a locking portion that can lock the transport pallet with either of the left and right transport lock pins corresponding to the length of one transport pallet in the transport direction. Is possible,
Each rack-like body that is locked to the transport pallet by a preset control unit is appropriately stopped at an intermediate position depending on the working state of each automobile body, and then to the position of the next transport drive device on the downstream side. The present invention proposes an automobile body transport device that sequentially transports a plurality of transport pallets by transporting a transport pallet and then sequentially repeating the operation of releasing the lock from the transport pallet and returning to the original position.

この発明によれば、工程単位の中で、更に各々の搬送パレット毎の搬送に分割することができるため、搬送用駆動装置を小型化できるとともに搬送速度をより高速化できる効果がある。   According to this invention, since it can divide | segment into conveyance for every conveyance pallet in a process unit, there exists an effect which can make a drive device for conveyance small and can make a conveyance speed faster.

更に、各々の搬送パレット毎に、中間位置を自由に選択することができるため、作業用ロボットの作業打点の範囲が広がり、より自由な作業ができる効果がある。   Furthermore, since the intermediate position can be freely selected for each transport pallet, the range of work hit points of the work robot is widened, and there is an effect that more free work can be performed.

更に又、複数の搬送パレットを連結して一斉に搬送ができるとともに、各搬送パレット毎の順次搬送もできる。そのため、先頭の搬送パレットは作業が終了していたが、後続の搬送パレットの１つが作業中である場合でも、その作業が完了した先頭の搬送パレットは、次の工程に移動搬送させることができる。   Furthermore, a plurality of transfer pallets can be connected and transferred at the same time, and each transfer pallet can be transferred sequentially. For this reason, the work for the first transport pallet has been completed, but even if one of the subsequent transport pallets is in operation, the first transport pallet for which the work has been completed can be moved and transported to the next process. .

次ぎに、この発明の実施形態である自動車ボディ搬送装置について、自動車ボディ搬送装置の平面説明図である図１、同じく縦断面説明図である図２、同じく自動車ボディ搬送装置に使用する１つの搬送パレットの平面説明図である図３、同じく１つの搬送パレットの正面説明図である図４、同じく１つの搬送駆動装置とラックと搬送パレットの位置関係を示す平面説明図である図５に基づいて説明する。   Next, with respect to the automobile body conveying apparatus according to the embodiment of the present invention, FIG. 1 which is a plan explanatory view of the automobile body conveying apparatus, FIG. 2 which is also a longitudinal sectional explanatory view, and one conveyance used for the automobile body conveying apparatus. 3 is a plan explanatory view of the pallet, FIG. 4 is a front explanatory view of one transport pallet, and FIG. 5 is a plan explanatory view showing the positional relationship between one transport drive device, a rack and the transport pallet. explain.

この発明の実施形態である自動車ボディ搬送装置は、複数の搬送パレット１の各々を搬送させる搬送用駆動装置２を1つの搬送パレット１の長さに対応する距離だけ搬送方向において離し、かつ搬送路Ａを構成するローラーコンベア３ａの左右に互い違いに設けている。この実施形態では、１つの工程単位において、４台の搬送パレット１を搬送する場合を示すが、搬送用駆動装置２は、搬送パレット１の数より１つ少ない３台である。搬送用駆動装置２ａ、２ｂ、２ｃは、搬送路Ａの左右に３つ互い違いに設置される。   An automobile body transport apparatus according to an embodiment of the present invention includes a transport driving device 2 that transports each of a plurality of transport pallets 1 separated in a transport direction by a distance corresponding to the length of one transport pallet 1 and a transport path. The roller conveyors 3a constituting A are provided alternately on the left and right sides. In this embodiment, a case where four transport pallets 1 are transported in one process unit is shown, but the transport driving device 2 is three, which is one less than the number of transport pallets 1. Three drive devices 2a, 2b, and 2c for conveyance are installed alternately on the left and right sides of the conveyance path A.

各々の搬送用駆動装置２は、駆動モータからなり水平方向に設けられる駆動回転軸２０によって駆動回転軸２０に取り付けられているピニオン（平歯車）４を回転させる。ラック５（ラック状体）は、ピニオン４とピニオン４の上部で噛合しており、搬送用駆動装置２の正逆回転によって搬送方向に前後往復移動可能なように設けられている。ラック５の長さは、少なくとも各々の搬送パレット１の長さより長い寸法である。   Each conveyance drive device 2 is composed of a drive motor and rotates a pinion (spur gear) 4 attached to the drive rotary shaft 20 by a drive rotary shaft 20 provided in the horizontal direction. The rack 5 (rack-like body) meshes with the pinion 4 at the upper part of the pinion 4 and is provided so as to be able to reciprocate back and forth in the transport direction by forward and reverse rotation of the transport drive device 2. The length of the rack 5 is at least longer than the length of each transport pallet 1.

各々のラック５は、上面にピン係止孔６を設けており、各々の搬送パレット１の搬送ロックピン７と係止可能である。各々のラック５ａ、５ｂ、５ｃは、ピニオン４を介して各々の搬送用駆動装置２ａ、２ｂ、２ｃによって１つの搬送パレット１のストロークで搬送方向で往復移動させる。この実施例ではピン係止孔６は、ラック５の長さの中間位置に設けられているが、他の位置でもよく、ラック５の長さとの関係もあるが、搬送パレット１を搬送ロックピン７とピン係止孔６との係止によって次のステージへ搬送パレット１を搬送できればよい。具体的にはラック５のピン係止孔６が、搬送パレット１の長さ以上、１つのステージＳｔの長さ以上移動可能であればよい。   Each rack 5 is provided with a pin locking hole 6 on the upper surface, and can be locked with a transport lock pin 7 of each transport pallet 1. Each rack 5 a, 5 b, 5 c is reciprocated in the transport direction by the stroke of one transport pallet 1 by each transport drive device 2 a, 2 b, 2 c through the pinion 4. In this embodiment, the pin locking hole 6 is provided at an intermediate position of the length of the rack 5. However, the pin locking hole 6 may be located at other positions and is related to the length of the rack 5. It is only necessary that the conveying pallet 1 can be conveyed to the next stage by the engagement between the pin 7 and the pin locking hole 6. Specifically, the pin locking hole 6 of the rack 5 only needs to be movable more than the length of the transport pallet 1 and more than the length of one stage St.

搬送パレット１は、前側の左右に下方にシリンダ装置８によって突出自在な搬送ロックピン７を有し、左右いずれかの搬送ロックピン７によって、ラック５の上面に開口するピン係止孔６に着脱係止可能である。９は搬送パレット１の上部に突出し自動車ボディＢを載置する受け基準である。   The transport pallet 1 has a transport lock pin 7 that can be protruded by the cylinder device 8 on the left and right sides of the front side, and is attached to and detached from the pin locking hole 6 opened on the upper surface of the rack 5 by either the left or right transport lock pin 7. It can be locked. Reference numeral 9 denotes a receiving reference that protrudes from the upper portion of the transport pallet 1 and places the automobile body B.

搬送路Ａは、この実施形態では図２に示すように上下二段のローラーコンベア３ａ、３ｂからなり上段の搬送方向へ移動するローラーコンベア３ａ（搬送路）は、自由回転のローラーからなり、下段の返還方向に移動するローラーコンベア３ｂ（返送路Ｒ）は、駆動ローラーからなる。   In this embodiment, the conveyance path A is composed of two upper and lower roller conveyors 3a and 3b as shown in FIG. 2, and the roller conveyor 3a (conveyance path) moving in the upper conveyance direction is composed of freely rotating rollers. The roller conveyor 3b (return path R) that moves in the return direction is composed of drive rollers.

次に、この発明の実施形態である自動車ボディ搬送装置の作動について説明する。図１において実線の矢印は、ラック５の搬送方向への移動であり、破線の矢印はラック５の復帰方向へ（搬送パレットの長さ）の１ストローク移動である。Ｔ１，Ｔ２，Ｔ３は、それぞれラック５が最も搬送方向上流側へ移動した状態でのピン係止孔６の位置であり、搬送パレット１の搬送ロックピン７との係止位置でもあり、搬送終了後返送して待機する復帰位置でもある。   Next, the operation of the automobile body conveyance device according to the embodiment of the present invention will be described. In FIG. 1, the solid line arrow is the movement of the rack 5 in the conveyance direction, and the broken line arrow is the one-stroke movement in the return direction of the rack 5 (the length of the conveyance pallet). T1, T2, and T3 are positions of the pin locking holes 6 in a state where the rack 5 has moved to the most upstream side in the transport direction, and are also locked positions with the transport lock pins 7 of the transport pallet 1, so that the transport is completed. It is also a return position to return and wait for later.

図１は自動車製造工程の１工程において４台の搬送パレット１を１ユニットとして順次搬送するが、その１つの搬送パレット１が、それぞれ４つのステージＳｔごとの状態を示す平面説明図であり、図５は１つの搬送パレット１と１つのラック５の係止関係を示す。搬送路Ａの右側、左側は、搬送方向に向かっての左右である。   FIG. 1 is an explanatory plan view showing a state in which each of four transport pallets 1 is sequentially transported as one unit in one process of the automobile manufacturing process, and each of the transport pallets 1 is in a state of four stages St. Reference numeral 5 denotes a locking relationship between one transport pallet 1 and one rack 5. The right side and the left side of the transport path A are left and right in the transport direction.

先頭の搬送パレット１は、前工程を終え、この工程の第１ステージ１ｓｔを終え、一番上流の第１搬送用駆動装置２ａの第１ラック５ａが図５に示すように最も搬送方向上流側へ移動した待機状態の位置まで来ると、自動的に予め設定されているセンサーによって感知しシリンダー装置８を作動させ、左右どちらかの搬送ロックピン７を下降させ、ピン係止孔６へ挿入させ係止させる。図１においては左側の搬送ロックピン７である。ラック５が、最も搬送方向上流側へ移動した待機状態の位置のとき、ピニオン４は、ラック５の最も搬送方向下流側端部に位置している。   The first transport pallet 1 finishes the previous process, finishes the first stage 1st of this process, and the first rack 5a of the first transport drive device 2a at the most upstream is the most upstream in the transport direction as shown in FIG. When the position reaches the standby state, the cylinder device 8 is automatically actuated by a sensor set in advance, and either the left or right transport lock pin 7 is lowered and inserted into the pin locking hole 6. Lock. In FIG. 1, the left conveyance lock pin 7 is shown. When the rack 5 is in the standby state where the rack 5 has moved to the most upstream side in the transport direction, the pinion 4 is located at the end of the rack 5 that is most downstream in the transport direction.

搬送ロックピン７がピン係止孔６に挿入されると、第１搬送用駆動装置２ａが作動し、第１ラック５ａが搬送方向へ移動するため、搬送パレット１は搬送方向へ移動しつつ第２ステージ２ｓｔの図示しない作業用ロボットによって順次予め設定された工程の作業を行なう。第１搬送用駆動装置２ａ及び第１ラック５ａによる搬送移動距離は、ピン係止孔６と搬送ロックピン７とが移動する距離であり、すなわち搬送パレット１の長さに対応する長さ分である。そして、係止している搬送ロックピン７とピン係止孔６が、Ｔ２の位置までくると第１搬送駆動装置２ａは停止し第１ラック５ａが停止する。同時に予め設定されているセンサーによって感知され自動的に左側のシリンダー装置８を作動させ左側の搬送ロックピン７を上昇させ、ピン係止孔６との係止を解除する。この作動と同時に右側のシリンダー装置８を作動させ、右側の搬送ロックピン７を下降させ、ピン係止孔６へ挿入させ係止させる。このとき、右側の第２搬送用駆動装置２ｂの第２ラック５ｂは、最も搬送方向上流側へ移動した待機状態にあり、そのピン係止孔６の位置がＴ２である。   When the transport lock pin 7 is inserted into the pin locking hole 6, the first transport drive device 2a is operated, and the first rack 5a moves in the transport direction, so that the transport pallet 1 moves in the transport direction while moving in the first direction. Work of a preset process is sequentially performed by a work robot (not shown) of the two stages 2st. The transport movement distance by the first transport driving device 2a and the first rack 5a is the distance that the pin locking hole 6 and the transport lock pin 7 move, that is, the length corresponding to the length of the transport pallet 1. is there. And when the conveyance lock pin 7 and the pin latching hole 6 which are latching come to the position of T2, the 1st conveyance drive device 2a will stop and the 1st rack 5a will stop. At the same time, it is detected by a preset sensor and automatically operates the left cylinder device 8 to raise the left conveyance lock pin 7 and release the lock with the pin lock hole 6. Simultaneously with this operation, the right cylinder device 8 is operated, the right conveyance lock pin 7 is lowered, and inserted into the pin locking hole 6 to be locked. At this time, the second rack 5b of the right second transport driving device 2b is in a standby state where it has moved to the most upstream side in the transport direction, and the position of the pin locking hole 6 is T2.

搬送パレット１は、第１搬送用駆動装置２ａと同様第２搬送用駆動装置２ｂの作動によって第２ラック５ｂが搬送方向に移動し同様に第３ステージ３ｓｔの作業用ロボットによって順次予め設定された作業を行なう。第２搬送用駆動装置２ｂ及び第２ラック５ｂによる搬送移動距離は、ピン係止孔６と搬送ロックピン７とが移動する距離であり、すなわち搬送パレット１の長さに対応する長さ分である。そして、ピニオン４が、第２ラック５ｂの最も搬送方向上流側端部の位置、すなわち搬送ロックピン７とピン係止孔６が、Ｔ３の位置までくると第２搬送駆動装置２ｂは、停止し第２ラック５ｂが停止する。同時に自動的に予め設定されているセンサーによって感知し右側のシリンダー装置８を作動させ右側の搬送ロックピン７を上昇させ、ピン係止孔６との係止を解除する。この作動と同時に左側のシリンダー装置８を作動させ、左側の搬送ロックピン７を下降させ、ピン係止孔６へ挿入させ係止させる。このとき、左側の第３搬送用駆動装置２ｃの第３ラック５ｃは、最も搬送方向上流側へ移動した待機状態にあり、そのピン係止孔６の位置がＴ３である。   The transport pallet 1 is preset in advance by the working robot of the third stage 3st as the second rack 5b is moved in the transport direction by the operation of the second transport drive device 2b in the same manner as the first transport drive device 2a. Do the work. The transport movement distance by the second transport driving device 2b and the second rack 5b is the distance that the pin locking hole 6 and the transport lock pin 7 move, that is, the length corresponding to the length of the transport pallet 1. is there. Then, when the pinion 4 reaches the position of the end portion on the most upstream side in the transport direction of the second rack 5b, that is, the transport lock pin 7 and the pin locking hole 6 reach the position T3, the second transport driving device 2b stops. The second rack 5b stops. Simultaneously, it is automatically detected by a preset sensor, the right cylinder device 8 is operated, the right conveyance lock pin 7 is raised, and the engagement with the pin engagement hole 6 is released. Simultaneously with this operation, the left cylinder device 8 is operated, the left conveyance lock pin 7 is lowered, and inserted into the pin locking hole 6 to be locked. At this time, the third rack 5c of the left third transport driving device 2c is in a standby state where it has moved to the most upstream side in the transport direction, and the position of the pin locking hole 6 is T3.

左側の第１搬送用駆動装置２ａは、第１ラック５ａが先頭の搬送パレット１との係止が解除されると直ぐに、逆回転し第１ラック５ａを最も搬送方向上流側の待機状態の位置まで戻す。   As soon as the first rack 5a is disengaged from the leading transport pallet 1, the left first transport driving device 2a rotates in the reverse direction and moves the first rack 5a to the most upstream position in the transport direction. Return to

搬送パレット１は、同様に第３搬送用駆動装置２ｃの作動によって第３ラック５ｃが搬送方向に移動し第４ステージ４ｓｔの作業用ロボットによって順次予め設定された作業を行なう。第３搬送用駆動装置２ｃ及び第３ラック５ｃによる搬送移動距離は、ピン係止孔６と搬送ロックピン７とが移動する距離であり、すなわち搬送パレット１の長さに対応する長さ分である。そして、ピニオン４が第３ラック５ｃの最も搬送方向上流側端部の位置、すなわち搬送ロックピン７とピン係止孔６がＴ４の位置までくると第３搬送駆動装置２ｃは停止し第３ラック５ｃが停止する。同時に自動的に予め設定されているセンサーによって感知し左側のシリンダー装置８を作動させ左側の搬送ロックピン７を上昇させ、ピン係止孔６との係止を解除する。   Similarly, the third pallet 5c is moved in the transport direction by the operation of the third transport driving device 2c, and the transport pallet 1 performs preset operations sequentially by the work robot of the fourth stage 4st. The transport movement distance by the third transport driving device 2c and the third rack 5c is the distance that the pin locking hole 6 and the transport lock pin 7 move, that is, the length corresponding to the length of the transport pallet 1. is there. Then, when the pinion 4 reaches the position of the most upstream end of the third rack 5c in the transport direction, that is, the transport lock pin 7 and the pin locking hole 6 reach the position T4, the third transport driving device 2c stops and the third rack 5c stops. At the same time, it is automatically detected by a preset sensor, the left cylinder device 8 is actuated, the left conveyance lock pin 7 is raised, and the engagement with the pin engagement hole 6 is released.

これによって、１つの搬送パレット１は、この１単位の工程を終了し搬送パレット１上に載置されている自動車ボディＢは、次工程へ送り出され、空となった搬送パレット１は、下段の返送路Ｒの駆動ローラーコンベア３ｂ上に載って返送され、エンドレスに回転して使用される。   As a result, one transport pallet 1 finishes this one unit process, and the automobile body B placed on the transport pallet 1 is sent to the next process. It is returned on the driving roller conveyor 3b of the return path R, and is rotated endlessly.

２番目、３番目、４番目の搬送パレット１も、同様に搬送される。２番目の搬送パレット１は、先頭の搬送パレット１が第２搬送用駆動装置２ｂによって第３ステージ３ｓｔの作業を行ない始め、返送された第１搬送用駆動装置２ａのラック５ａが、図５に示すように最も搬送方向上流側へ移動した待機状態の位置まで来ると、自動的に予め設定されているセンサーによって感知しシリンダー装置８を作動させ、この実施形態では左側の搬送ロックピン７を下降させ、ラック５ａのピン係止孔６へ挿入させ係止させる。以下同様に３番目の搬送パレット１ｃ、４番目の搬送パレット１ｄも同様に搬送される。   The second, third and fourth transport pallets 1 are transported in the same manner. In the second transport pallet 1, the top transport pallet 1 starts to work on the third stage 3st by the second transport driving device 2b, and the returned rack 5a of the first transport driving device 2a is shown in FIG. As shown in the figure, when it reaches the position of the standby state that has moved to the most upstream side in the conveying direction, it is automatically detected by a preset sensor and the cylinder device 8 is activated, and in this embodiment, the left conveying lock pin 7 is lowered. And inserted into the pin locking hole 6 of the rack 5a and locked. Similarly, the third transport pallet 1c and the fourth transport pallet 1d are similarly transported.

従来の定位置停止方式では、工程タクトｍａｘ時は、問題ない。しかし、工程タクトが下がって生産台数が減少する場合でも、全工程作業しなければならず、生産台数を減らして工程の仕掛かり台数を減らすことはできない。この発明のように、仮に１／２ピッチで停止させ、作業ロボットを起動して打点作業等をさせると、１台の作業用ロボットによって打点の届く範囲が広がり、１点でも２点でも打点することができ、工程仕掛かりの作業用ロボット台数を１台でも減らすことができる。   In the conventional fixed position stop method, there is no problem at the process tact max. However, even if the process tact decreases and the number of production decreases, the entire process must be performed, and the number of production in process cannot be reduced by reducing the number of production. As in the present invention, if the work robot is started at a half pitch and the work robot is started to perform the spotting work and the like, the range where the hitting point can be reached by one work robot is widened, and one point or two points are hit. Therefore, the number of work robots in process can be reduced even by one.

この発明は、自動車製造組立ライン（工程）の単位工程における自動車ボディ搬送装置に利用する。   The present invention is used for an automobile body conveying device in a unit process of an automobile manufacturing assembly line (process).

この発明の実施形態である自動車ボディ搬送装置の平面説明図Plane explanatory drawing of the automobile body transportation device which is an embodiment of this invention 同じく縦断面説明図Similarly longitudinal section explanatory drawing 同じく自動車ボディ搬送装置に使用する１つの搬送パレットの平面説明図Plane explanatory drawing of one transport pallet that is also used in the car body transport device 同じく自動車ボディ搬送装置に使用する１つの搬送パレットの正面説明図Front explanatory drawing of one transport pallet that is also used in the car body transport device 同じく１つの搬送駆動装置とラックと搬送パレットの位置関係を示す平面説明図Plane explanatory drawing which similarly shows the positional relationship of one conveyance drive device, a rack, and a conveyance pallet. 従来の自動車ボディ搬送装置の平面説明図Plane explanatory diagram of a conventional automobile body transport device

符号の説明Explanation of symbols

１ 搬送パレット
２（２ａ、２ｂ、２ｃ）搬送用駆動装置（駆動モータ）
３（３ａ、３ｂ） ローラーコンベア
４ ピニオン
５（５ａ、５ｂ、５ｃ）ラック（ラック状体）
６ ピン係止孔
７ 搬送ロックピン
８ シリンダー装置
９ ボディ受け基準 1 Carrying pallet 2 (2a, 2b, 2c) Carrying drive device (drive motor)
3 (3a, 3b) Roller conveyor 4 Pinion 5 (5a, 5b, 5c) Rack (rack-like body)
6 Pin locking hole 7 Transport lock pin 8 Cylinder device 9 Body receiving standard

Claims (2)

自動車ボディ搬送装置において、複数の搬送パレットの各々を順次搬送させる搬送用駆動装置を1つの搬送パレットの長さに対応する距離だけ搬送方向において離し、かつ搬送路の左右に互い違いに設け、
各々の搬送パレットは、左右に搬送ロックピンを有し、
各々の搬送用駆動装置は、搬送パレットを左右対応するいずれかの搬送ロックピンと係止可能な係止部を有するラック状体を、１つの搬送パレットの搬送方向長さ分だけ往復移動させることが可能であり、
搬送パレットと係止された各々のラック状体は、下流側の次の搬送用駆動装置の位置まで搬送パレットを搬送した後、搬送パレットと係止解除して元の位置まで戻る作業を順次繰り返すことで複数の搬送パレットを順次搬送させることを特徴とする自動車ボディ搬送装置。 In an automobile body transport device, a transport drive device that sequentially transports each of a plurality of transport pallets is separated in the transport direction by a distance corresponding to the length of one transport pallet, and alternately provided on the left and right of the transport path,
Each transport pallet has transport lock pins on the left and right,
Each transport driving device can reciprocate a rack-shaped body having a locking portion that can lock the transport pallet with either of the left and right transport lock pins corresponding to the length of one transport pallet in the transport direction. Is possible,
Each rack-like body locked to the transfer pallet sequentially repeats the operation of transferring the transfer pallet to the position of the next transfer drive device on the downstream side, then releasing the lock from the transfer pallet and returning to the original position. A vehicle body conveying apparatus characterized by sequentially conveying a plurality of conveying pallets. 自動車ボディ搬送装置において、複数の搬送パレットの各々を順次搬送させる搬送用駆動装置を1つの搬送パレットの長さに対応する距離だけ搬送方向において離し、かつ搬送路の左右に互い違いに設け、
各々の搬送パレットは、左右に搬送ロックピンを有し、
各々の搬送用駆動装置は、搬送パレットを左右対応するいずれかの搬送ロックピンと係止可能な係止部を有するラック状体を、１つの搬送パレットの搬送方向長さ分だけ往復移動させることが可能であり、
予め設定された制御部によって、搬送パレットと係止された各々のラック状体は、各々の自動車ボディの作業状態によって中間位置で適宜停止しつつ、下流側の次の搬送用駆動装置の位置まで搬送パレットを搬送した後、搬送パレットと係止解除して元の位置まで戻る作業を順次繰り返すことで複数の搬送パレットを順次搬送させることを特徴とする自動車ボディ搬送装置。 In an automobile body transport device, a transport drive device that sequentially transports each of a plurality of transport pallets is separated in the transport direction by a distance corresponding to the length of one transport pallet, and alternately provided on the left and right of the transport path,
Each transport pallet has transport lock pins on the left and right,
Each transport driving device can reciprocate a rack-shaped body having a locking portion that can lock the transport pallet with either of the left and right transport lock pins corresponding to the length of one transport pallet in the transport direction. Is possible,
Each rack-like body that is locked to the transport pallet by a preset control unit is appropriately stopped at an intermediate position depending on the working state of each automobile body, and then to the position of the next transport drive device on the downstream side. An automobile body conveying device characterized in that after a conveying pallet is conveyed, a plurality of conveying pallets are sequentially conveyed by sequentially repeating the operation of releasing the locking pallet and returning to the original position.
JP2007158193A 2007-06-15 2007-06-15 Car body conveyor Expired - Fee Related JP4932611B2 (en)

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