JPH0661680B2 - Operation control device for single-path transport device - Google Patents

Description

Description: [Industrial field of use] The present invention relates to an operation control device for traveling a plurality of transportation means such as a trolley on a single path along a plurality of machine tools such as an FMS line. In particular, the present invention relates to an operation control device for a transport device on a single path in which a transport area is shared by each transport means.

[Conventional technology]

Conventionally, a double-track route is generally adopted when transporting a plurality of trolleys on a route along a plurality of machine tools such as an FMS line, but it saves space. In some cases, it may be necessary to use a single-track route because of the relationship.

[Problems to be solved by the invention]

If a plurality of transportation means are to be traveled on a single route such as a bogie track, a great burden will be imposed on the creation and management of the operation schedule, and the risk of a program mistake will increase.

Particularly troublesome is the distribution of how to assign jobs to multiple transport means, and it is not possible to completely cover the entire area along the route, or to get the desired article from the area not in charge. There is a problem that it can not be done or an appropriate countermeasure is not taken against the occurrence of a conveyance failure, and the processing itself is slow and inflexible,
It wasn't efficient.

The present invention was devised in view of such problems, completely covers the entire area along the route, allows smooth transfer between areas, and performs appropriate processing for the occurrence of a failure. SUMMARY OF THE INVENTION It is an object of the present invention to provide an operation control device for a transport device on a single path, which is quick, flexible, and has improved efficiency. [Means for Solving the Problems] Means for solving the problem is an operation control device for traveling two conveying means on a single path along a plurality of machine tools, wherein the operation control device corresponds to the single path, and a part of them overlaps. The transfer area between the two transfer means and the transfer place between the transfer areas are set, and
A transport pattern determination unit that assigns each transport area to each transport means, and an alarm determination that determines which transport area has a fault when a transport fault occurs in at least one of the transport means Unit and a conveyance alarm processing unit that resets the conveyance area of the conveyance means in which the conveyance trouble has occurred and excludes the conveyance means determined to have a conveyance trouble by the alarm judgment unit And a transfer queue setting processing unit that sets a transfer queue for each transfer unit based on the result of the setting processing by the transfer pattern determination unit or the transfer alarm processing unit, and a transfer operation based on the processing result of this transfer queue setting processing unit. The present invention provides an operation control device for a transfer device on a single path, which includes a transfer operation processing unit that performs overall processing.

[Action]

In the transfer pattern determination unit, the transfer areas of the two transfer means, which partially overlap with each other, are set by parameters in correspondence with the route,
By assigning a transport area to each transport means, the entire area is covered and the processing efficiency is improved, and the transport queue is set for each transport means in the transport queue setting processing section, and the delivery location is also set. Transfers between areas are smooth, and the alarm determination unit determines in which transport area and transport means the transport fault occurred, and the transport alarm processing unit eliminates the transport means in which a fault has occurred, and normal transport means By setting the proper transport area again, appropriate processing can be performed against the occurrence of a failure. The transportation operation processing unit comprehensively processes the transportation operation based on the processing result of the transportation queue setting processing unit.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the embodiments and the drawings.

FIG. 1 is a block diagram showing a configuration of an operation control device for a transporting means, which is an embodiment of the present invention. In the present embodiment, the route is a single-track track laid as an FMS line, and the transport means is two transport carts (hereinafter referred to as carts). In FIG. 1, the operation control device for a plurality of transportation means sets a first and second transportation areas, which partially correspond to each other, in correspondence with a single-track route, and determines a transportation pattern of a transportation vehicle that assigns the transportation areas to two vehicles. The unit 10, the alarm carriage determination unit 30 for determining which transport area and transport means the transport failure has occurred, and the transport means in which the transport failure has occurred are excluded, and a proper transport area is set for the normal transport means. Transport alarm processing unit 40 for re-doing, and the transport pattern determination unit 20
Alternatively, a transport queue setting processing unit 20 and a transport queue setting processing unit 2 that set a transport queue for each transport unit based on the processing result set by the transport alarm processing unit 40.
A carriage transport queue that is configured to include a transport operation processing unit 50 that comprehensively processes the transport operation based on the processing result of 0, and a central processing unit 100 that controls each of the above-described devices, and is instructed by the transport operation processing unit 50. Is a truck transport queue memory 50
The area setting data that is temporarily stored in a and is input to the carriage transfer pattern determination unit 10 is registered in the section setting data memory 10a.

The transportation device to which the above operation control device is applied is controlled by the main control device (MS) 101 as an FMS line, and the pallet stocker (PS) 102 and a plurality of machine tools (MC) are used.
1 to MC6) 103 and a carriage device 1 laid between
04. In the carrier vehicle device 104, two carriages 104a and 104b are arranged on a single track 104c. The statuses of the entire apparatus, pallets, workpieces, etc. are stored in the system operating status file 105, and are operated based on the machining schedule file 106. The machining schedule file 106 describes the pallet number on which each component is mounted. The pallet stocker 102 storing the pallet is selected by referring to the pallet stocker selection program memory 107. The basic operation of the two carriages 104a and 104b is set in the operation program memories 108a and 108b for each carriage, and the alarm carriage exclusion operation program memory 108c is set in preparation for a transport failure. The central processing unit 100 is connected to the main control unit 101, manages each of the above-mentioned devices, and displays the keyboard-equipped display 1.
It is possible to input and output through 09 and its input / output boat 109a.

The setting of the transfer area is performed as shown in FIG. Machine parameters MP01 to 06 are set for a plurality of machine tools MC1 to MC6, and each pallet stocker P is set.
For S1 to PS18, the stocker parameter SP0
01 to 009 is set. One stocker parameter is given to two pallet stockers. A single track 104c is laid between the machine tool and the pallet stocker, and two transport carriages 104a and 104b run on the track 14c.
Normally, the first bogie 104a is MP01-03 and SP0.
01-004, the second trolley 104b is MP04
In charge of ~ 06 and SP006-009. SP005 and the pallet stockers PS9 and PS10 corresponding to the stocker parameters are redundantly assigned as a delivery place to both the carrier vehicles.

Here, when the pallets stored in the pallet stocker PS2 are conveyed to the machine tool MC6, the pallet stocker PS2 is in charge of the first trolley, and the machine tool MC6 is in charge of the second trolley. In that case, first, as shown in FIG. 2 (a), from PS2 to the first carriage 104.
Take out the pallet to a, and put the first trolley 104a into S
Move to P005, PS from the first trolley 104a
Lower the pallet to 9. Next, as shown in FIG. 2 (b), the first carriage 104a is evacuated to SP003,
The second carriage 104b is moved from SP008 to SP005, and the pallet is moved from PS9 to the second carriage 104b.
Take out to b. Finally, as shown in FIG. 2 (c),
Move the second carriage 104b to SP008,
Then, the pallet is unloaded from the bogie 104b of No. 3 to the setup table of the machine tool MC6.

The delivery place is not particularly limited to the pallet stocker, and may be provided separately, or a setup table on the machine side may be used.

FIG. 3 is a flowchart showing an operation procedure example of the above apparatus. When the flow is started, each file data is read first, and then the operation program of each carrier is read. Then, when a transportation command is input and it is confirmed that the two trucks are not alarms, the data of the carry-in location and the carry-out location are input, and the cart transport pattern determination unit 10 reads the data from the section setting data memory 10a. The judgment is made by collating with the data. In FIG. 3, the center line of the flow is the case where the parameters of the carry-in location and the carry-out location are both the area of the first truck, and the carriage 1 transport queue setting processor 21 in the transport queue setting processor 20
A loading queue and an unloading queue are set and sent to the transportation operation processing unit 50. The place where the carry-out place was the area of the second carriage is branched to the flow of A-6, and the carriage is set by the carriage 1-> carriage 2 transfer queue setting processing unit 22.
If the loading location is the area of the second trolley, the flow branches to A-4, and it is determined which trolley area the loading location is, and the unloading location is also the second trolley area. In some cases, the flow of A-4 is directly lowered and the loading queue and the unloading queue are set in the carriage 2 transfer queue setting processing section 24. However, if the carry-out place is the area of the first carriage, A A branch is made to the flow of -5, and the trolley 2 → the trolley 1 transport queue setting processing unit 23 sets the queue. Trolley 1 →
In the setting process in the trolley 2 transfer queue setting processing unit 22 and the trolley 2 → trolley 1 transfer queue setting processing unit 23, it is necessary to confirm the vacancy of the transfer place by the transfer place data, and the loading queue and the dismounting queue are also two. It is necessary to set it for each dolly.

The transportation operation processing unit 50 outputs the generated transportation queue,
The transfer queue is temporarily stored in the carriage transfer queue memory 50a, and a flag is set in the processing schedule file 106 for each processing order. The flag is cleared when the transfer is completed.

When an alarm is generated on any of the trucks, the determination operation is performed by the alarm truck determination unit 30, and when the alarm is generated on the first truck, the flow branches to A-1 for transportation. When alarm processing is performed in the trolley 1 alarm processing unit 41 in the alarm processing unit 40 and an alarm occurs in the second trolley, the process branches to A-2, and the trolley 2 alarm processing unit 42 performs alarm processing. Be seen. The content of the alarm processing is to notify the truck of which the alarm has occurred, clear all the existing queues of the truck, perform the process of eliminating the truck, and then release the transport area. The loading and unloading queues are generated by the flow of a simple trolley. FIG. 4 is a flowchart showing the alarm processing in more detail.

If an alarm occurs on both of the two trucks, the truck branches from A-1 to A-3, and the truck 1 and truck 2 alarm processing unit 43 performs alarm processing. It will be up to the acquisition process.

As described above, in the present invention, the transport areas of the two carriages are set by the parameters, and the transport pattern determination unit assigns the transport areas to the respective carriages to cover the entire area,
The transport queue setting processing unit sets a transport queue for each trolley, the transfer is also processed smoothly by the queue setting, and when the alarm determination unit determines that a transport fault has occurred, the transport alarm processing unit will generate a faulty trolley. By eliminating the problem and resetting the area and transport queue for a normal truck, appropriate processing for the occurrence of a failure is performed.

〔The invention's effect〕

As described above, according to the present invention, the entire area along the route is effectively covered by the two transporting means, the transfer between areas is smooth, and appropriate processing for the occurrence of a failure is performed. Thus, it is possible to provide an operation control device for a multi-transport device that is quick, highly flexible, and has improved efficiency.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is an explanatory view of setting a transport area, and FIGS. 3 and 4 are flowcharts of operation procedures of the above apparatus. 10: Transport pattern determination unit, 20: Transport queue setting processing unit, 30: Alarm determination unit, 40: Transport alarm processing unit, 50: Transport operation processing unit.

Claims (1)

[Claims] 1. An operation control device for running two conveying means on a single path along a plurality of machine tools, wherein the two conveying means correspond to the single path and partially overlap each other. Transport area and a transfer area between the transport areas, and a transport pattern determination unit that assigns each of the transport areas to the two transport means, and a transport pattern when at least one of the transport means has a transport failure. An alarm determination unit that determines which transportation means has failed in an area, and the transportation means that has been determined to have a transportation failure by this alarm determination unit are eliminated, and transportation of the transportation means that has a transportation failure occurs. The transport alarm processing unit that resets the area to the transport area of the normal transporting unit, and each transport based on the result set by the transport pattern determination unit or the transport alarm processing unit. A transport queue setting processing unit that sets a transport queue for each means, and a transport operation processing unit that collectively processes the transport operation according to the processing result of the transport queue setting processing unit. An operation control device for a carrier device.