JP3758112B2 - Conveyor device with automatic guided vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an article conveying device using an automatic guided vehicle, and more particularly to an assembly component conveying device using an automatic guided vehicle adapted to convey parts to each assembly section in an assembly factory.
[0002]
[Prior art]
In an assembly plant, in order to transport parts from a sub-process to the line side, towing a carriage to a desired location using an automated guided vehicle moving along a rail line is disclosed in, for example, Japanese Patent Laid-Open No. 9-185414. It is disclosed and known. In addition, related techniques are disclosed in JP-A-6-336327, JP-A-7-33024, and JP-A-7-33027.
[0003]
As shown in FIG. 7, the conventional automatic guided vehicle with a power unit is configured such that the conveyance vehicle 20 pulls the carriage and advances in one direction along the trajectory. And if the conveyance vehicle 20 arrives at a predetermined section, the carriage where the worker who exists there will stop, and it will remove | separate from a rail line and will take out required parts from a carriage. After taking out the necessary parts, the carriage is again placed on the rail and restarted.
[0004]
Therefore, it is necessary for the worker to perform extra work to receive the parts sent from the sub-process, and only one car can be transported one by one, or when several cars are connected, it takes time to unload. Therefore, the efficiency was very bad. Therefore, since the operation rate of the automatic guided vehicle is low, it is necessary to transport a large amount of parts at once, and it takes more time to unload the parts.
[0005]
[Problems to be solved by the invention]
The present invention has been proposed in view of the above-mentioned problems of the prior art, and improves the operation rate of the automatic guided vehicle, eliminates unnecessary work of the operator, and further supplies parts by the automatic guided vehicle. The goal is to achieve single-flow production as a pacemaker.
[0006]
[Means for Solving the Problems]
A transfer device using an automatic guided vehicle according to the present invention is a transfer device using an automatic guided vehicle that propels a plurality of carriages and transfers them to a desired section by an automatic guided vehicle with a power device that moves forward along a trajectory. Are equipped with diving rollers on both sides, and pushers are erected on both sides of the rear end, and the cart has a bar-like traction guide that extends horizontally and horizontally at the front end of the shelf board. The vehicle is configured such that the vehicle sinks between the legs of the carriage and the traction guide contacts the L-shaped arm of the pusher of the transport vehicle to propel the carriage, and the pusher is a standing guide rod. And an L-shaped arm guided by the guide rod and movable in the vertical direction, and an operating rod having one end fixed to the L-shaped arm. When you ride on the separation rail installed on the surface Even-arm is eliminated contact between the traction guide elevated the carriage is configured to be advanced only AGV.
[0007]
In carrying out the transfer device using the automatic guided vehicle according to the present invention, it is preferable that a rail is provided on the floor surface along a rail line in a desired section in order to remove the pressing tool from the traction guide.
[0008]
According to the transport apparatus of the present invention having such a configuration, a plurality of carts are transported simultaneously, and in a predetermined work section, only necessary carts are automatically stopped without stopping the carts. Can do. Therefore, the operation rate of the transport vehicle is improved.
[0009]
Moreover, even if the transporter arrives, the worker can continue the work being performed without interruption. Then, an unloading operation of parts and the like placed on the carriage is performed at an appropriate time, and the empty carriage is left as it is. That is, since the worker can continue the work even when the carriage arrives, the work efficiency is prevented from being lowered due to the work interruption as in the conventional case.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 shows an automatic guided vehicle 1 according to the present invention. Since the transport vehicle 1 sinks under the cart 8 and transports several carts 8 at a time, the length in the vertical direction is extended as compared with the conventional transport vehicle 20 (FIG. 7). In addition, since the transport vehicle 1 sinks under the carriage 8 and slides relatively, the transport vehicle 1 is provided with a sink roller 2 on both sides. Further, on both sides of the rear end of the transport vehicle 1, pushers 3 for pushing the carriage are vertically installed (only one side is shown in FIG. 1).
[0011]
As shown in FIGS. 3 and 4, the pusher 3 includes a guide bar 6 standing upright on the upper surface of the transport vehicle 1 (FIG. 1), an L-shaped arm 4 guided in the vertical direction by the guide bar 6, The operating bar 5 is fixed to the arm 4 and is configured to cooperate with a separation rail 17 (FIG. 4) embedded in the floor with an anchor.
[0012]
Since the intermediate portion 4M of the arm 4 cooperates with the guide rod 6, it is formed in a cylindrical shape so that the guide rod 6 can be inserted. Further, the end 4E of the arm 4 is formed in a cylindrical shape so that the operating rod 5 can be fitted in order to fix the operating rod 5. Furthermore, the operating rod 5 and the guide rod 6 are fixed by a guide member 7 (FIG. 4) having both ends formed in a cylindrical shape.
[0013]
FIG. 2 shows the carriage 8.
The top plate 9 of the carriage 8 is supported at the four corners by legs 13 with wheels, and below the shelf board 10 is similarly supported by the legs 13. A rod-like traction guide 11 extending horizontally in the lateral direction of the carriage 8 is suspended from the front end of the shelf board 10, and the guide 11 is configured to cooperate with the pusher 3 at both ends thereof. Then, from the rear end of the top plate 9, a Y-shaped stopper 12 that cooperates with the subsequent carriage protrudes rearward from both ends of the top plate 9.
[0014]
Underneath both sides of the top plate 9, a diving roller guide 14 is provided horizontally. This roller guide 14 cooperates with the roller 2 (FIG. 1) of the automatic guided vehicle 1 when the automatic guided vehicle 1 sinks between the front and rear legs 13 of the carriage 8. Note that the legs 13 on both sides of the carriage 8 are connected by a reinforcing member 15.
[0015]
Hereinafter, the operation of the illustrated embodiment will be described with reference to FIGS.
FIG. 5 shows the state ready for advancement. Parts manufactured in the sub-process, for example, parts A, B, and C, are loaded on carts 8a, 8b, and 8c, respectively. Under these carts 8a, 8b and 8c, the automatic guided vehicle 1 is submerged, and the L-shaped arm 4 of the pusher 3 of the automatic guided vehicle 1 comes into contact with the traction guide 11 of the last cart 8a. The stoppers 12 of the carriages 8b and 8c are in contact with the shelf boards 10 of the following carriages.
[0016]
When the automatic guided vehicle 1 moves forward along the trajectory 16 and arrives at a work section that requires the part A, the operating rod 5 (the wheel at the tip) rides on the separation rail 17 on the floor surface, and the pusher 3 The L-shaped arm 4 rises from the traction guide 11 and does not press the carriage 8a. Therefore, the carts 8a to 8c stop, only the transport vehicle 1 continues to advance, and the cart 8a remains in the section.
[0017]
When the operating rod 5 (the wheel at the tip) passes the separation rail 17, it falls to the floor surface, and the L-shaped arm 4 also descends. As a result, the L-shaped arm 4 comes into contact with the traction guide 11 of the carriage 8b and advances the carriages 8b and 8c.
[0018]
Next, the automatic guided vehicle 1 transports the part A last time, enters under the empty carriage 8d on which no parts are currently placed, and advances toward the next work section together with the carriages 8d, 8b, and 8c. To do.
[0019]
Thereafter, the above-described operation is repeated in each section, and only the necessary carriage is left in the work section, and the empty carriage is collected.
And it is not necessary to intervene at all during the operation | movement which the automatic guided vehicle 1 and the trolley | bogie (8a-8d) mentioned above. That is, in each work section, the worker who is continuing the work does not need to interrupt the work.
[0020]
【The invention's effect】
The transfer device using the automatic guided vehicle according to the present invention can simultaneously transfer a plurality of carriages, and can automatically stop only necessary carriages without stopping the carriages in a predetermined work section. Therefore, the operation rate of the transport vehicle is remarkably improved.
[0021]
At the same time, the worker can continue the work regardless of the arrival of the carriage, perform unloading work on the parts placed on the carriage at an appropriate time, and leave the empty carriage as it is. For this reason, it is not necessary to carry out the unloading work of the parts and the like on the carriage every time the carriage arrives and to interrupt the ongoing work as in the case of the conventional conveyance carriage.
[0022]
The present invention enables unmanned supply by a simple modification of a conventional automatic guided vehicle and eliminates an intermediate dump of parts.
[0023]
In addition, by aligning the tact of parts supply with the tact of the work, the worker can understand the delay and progress of the parts supply, and can construct a line that understands the abnormality.
[0024]
Although the present invention has been described with respect to an assembly part conveying apparatus using an automatic guided vehicle for conveying parts to each assembly section, particularly in an assembly factory, the present invention can be used not only in an assembly factory but also for conveying an article using a general automatic guided vehicle. It can also be used for devices.
[0025]
Although the traction guide is provided at the front end of the shelf and the stopper is provided at the rear end of the shelf, the positions are exchanged, that is, the traction guide is provided at the rear end of the shelf and the stopper is provided at the front end of the shelf. It can also be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view of an automatic guided vehicle used in the present invention. FIG. 2 is a perspective view of a cart used in the present invention. FIG. 3 is a perspective view showing a relationship between a pusher and a traction guide while the transported vehicle is moving forward. FIG. 4 is a perspective view showing the action of the pusher when separating the carriage. FIG. 5 is a perspective view showing the automatic guided vehicle and the carriage just before arriving at the working section. FIG. 6 is an automatic guided vehicle after passing the working section. FIG. 7 is a perspective view showing a cart and an empty cart. FIG. 7 is a perspective view showing a conventional automatic guided vehicle.
DESCRIPTION OF SYMBOLS 1 ... Automatic guided vehicle 2 ... Submersible roller 3 ... Pushing tool 4 ... L-shaped arm 5 ... Actuating rod 6 ... Guide rod 7 ... Guide member 8 ... Carriage 9 ... Top plate 10 ... Shelf plate 11 ... Traction guide 12 ... Stopper 13 ... Leg 14 ... Sink roller guide 15 ... Reinforcement member 16 ... Track 17 ... Disconnecting rail

Claims (1)

  In the transfer device by the automatic guided vehicle which propels a plurality of carts (8) by the automatic guided vehicle (1) which moves forward along the rail line (16) and transports it to a desired section, the automatic guided vehicle (1) Are provided with diving rollers (2) on both sides, and pushers (3, 3) are erected on both sides of the rear end, and the carriage (8) is provided at the front end of the shelf (10). A bar-shaped traction guide (11) extending in the horizontal and lateral directions is suspended, and the automatic guided vehicle (1) enters between the legs (13, 13) of the carriage so that the pusher (3 3) the L-shaped arm (4) is brought into contact with and the carriage (8) is propelled, and the pusher (3) includes a standing guide rod (6), An L-shaped arm (4) that is guided by the guide rod (6) and is movable in the vertical direction, and one end of the L-shaped arm (4) When the other end of the operating rod (5) rides on a separation rail (17) installed on the floor along the rail line (16), the L-shaped arm ( 4) The transport device using the automatic guided vehicle is configured to move up and only the automatic guided vehicle (1) moves forward by lifting the contact with the traction guide (11) of the carriage.

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