JPH06106461A - Production system - Google Patents

Abstract

PURPOSE:To disperse the risk caused by failure in an ummanned production system formed by combining an FMS line and a physical distribution line with each other and improve the efficiency in delivering a work between both the lines. CONSTITUTION:An FMS line 10 has a machining center 20, a multistoried warehouse 30, a stacker crane 50 and a line controller 90, and carries out working on a work installed on a machine pallet 40. A loading station 60 arranged in the FMS line carries out work preparing operation on a jig pallet 40. A physical distribution line 100 has a multistoried warehouse 120, a stacker crane 140 and a host computer 190, and handles a physical distribution pallet 130 housing the work. A work station 150 is arranged opposite to the loading station 60, and plays a role of an interface in delivering the work. Both the FMS line and the physical distribution line are constructed as a standalone system, and dispers risks caused by failure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production system which is a combination of a machining system equipped with a composite machining machine tool and a physical distribution system for accommodating and carrying work.

[0002]

2. Description of the Related Art A multi-purpose machine tool such as a machining center, a three-dimensional warehouse containing a jig pallet used for the machining center, and a stacker crane for transferring the jig pallet between the machining center and the three-dimensional warehouse are provided. A system for automatically producing a work (FMS) is becoming popular. This type of FMS is equipped with a line controller that is connected to a plurality of NC devices of a machining center and a stacker crane to centrally control each device. A loading station is arranged along the rail that guides the stacker crane to set up the material work on the jig pallet and to remove the finished work from the pallet. Set up. The operator performs the necessary setup on the jig pallet sent to the loading station based on the command from the line controller.

[0003]

The material work is stored in, for example, a physical distribution pallet and sent to the loading station by a forklift or the like, and waits for setup by the operator. Similarly, the completed work, which has been removed, waits for delivery at the loading station. Therefore, the work remained in the loading station. According to the present invention, a physical distribution system including a physical distribution pallet for storing a work, a three-dimensional warehouse for storing the pallet, and a transport device is prepared, and the physical distribution system and the FMS line are interfaced with a loading station. -It is intended to provide a production system in which no work is accumulated by combining the two as a work.

[0004]

A machining system constituting a part of a production system of the present invention is supplied in a replaceable manner to a compound machining machine tool such as a machining center and a table of the compound machining machine tool. It has a jig pallet equipped with a jig for mounting a work, a jig pallet conveying device and a three-dimensional warehouse for accommodating the jig pallet. The physical distribution system arranged adjacent to the processing system has a physical distribution pallet for storing the material work and the finished work, a transportation device for the physical distribution pallet, and a three-dimensional warehouse for storing the jig pallet. . Loading station installed in the processing system
The setup is for setting up the work on the jig pallet, and the setup is executed by the operator. The work station attached to the physical distribution system is for carrying out the material work or the completed work to the physical distribution pallet. Both systems are independent systems and can continue to operate even if the other system fails. Both systems are organically combined using the loading station and the workstation as interfaces, and the control units of both systems communicate with each other to obtain the required pallet at the optimum timing. It has the function of sending to the station.

[0005]

By virtue of the above means, this production system achieves unmanned processing for a long time, and even if one part of the production system fails, it affects other parts. Minimize and continue highly efficient production.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view showing the outline of the production system of the present invention. The FMS, generally designated by reference numeral 10, includes one or a plurality of machining centers 20. Each machining center 20 has a table 22 on which a jig pallet is replaceably mounted, and various kinds of machining are automatically performed on a work set up on the jig pallet. Opposite the line of the machining center 20, the three-dimensional warehouse 30
Is provided. The three-dimensional warehouse 30 has a large number of shelves 32 constructed in multiple stages, and a jig pallet 40 is stored in each of the shelves 32.

A rail 52 is laid between the line of the machining center 20 and the three-dimensional warehouse 30, and a stacker crane 50 that runs on the rail 52 is installed. The stacker crane 50 includes a handling device such as a fork device, and conveys the jig pallet between the shelf 32 of the three-dimensional warehouse 30 and the table 22 of the machining center 20. A loading station 60 is provided opposite to the rail 52 of the stacker crane 50. The loading station 60 is a device for executing the work of setting up the material work on the jig pallet 40 and removing the completed work from the jig pallet 40. The jig pallet 40 carried by the stacker crane 50 is
The loading station carries the loading station into and out of the loading station 60A. The loading station 60 has a moving mechanism for the jig pallet 40, and moves the loaded jig pallet 40 to the working unit 60B.

The operator carries out the setup for the jig pallet 40 at the working section 60B of the loading station 60. The working unit 60B is provided with a control panel operated by the operator and a display device showing data required for the operator. The operation of the line of the machining center 20, the stacker crane 50, the loading station, etc. is centrally controlled by a line controller 90 equipped with a computer. Therefore, the FMS 10 controlled by the line controller 90 can operate as a stand-alone system independently of the control system of peripheral devices.

In the system of the present invention, a system in which a stand-up FMS is organically combined with a work handling system for supplying a material work and carrying out a completed work is constructed. It is a thing. A distribution system for handling a work, which is entirely denoted by reference numeral 100, is provided with a three-dimensional warehouse 120 for distribution. The three-dimensional warehouse 120 has a large number of shelves 122, and each of the shelves 122 houses a distribution pallet 130. In the distribution pallet 130, material work or completed work is stored. A rail 142 is laid facing the three-dimensional warehouse 120, and a stacker crane 140 is movably mounted on the rail 142. The stacker crane 140 is a stacker crane for physical distribution, has a fork device, and conveys the physical distribution pallet 130.

A work station 150 is arranged so as to face the loading station 60 of the FMS. This workstation 150 is a stacker crane 14
Carry-in / carry-out section 15 of distribution pallet 130 facing the 0 side
0A and working unit 150B, and carry-in / carry-out unit 150
A mechanism for moving the physical distribution pallet 130 between A and the working unit 150B is provided. The physical distribution system 100 is centrally controlled by a host computer 190. FM
The line controller 90 of S includes a host computer 190 for physical distribution and a host computer 30 for production control.
0 connected to each other. Next, the layout of the loading station and the workstation will be described.

FIG. 2 shows one loading station 6
For 0, a layout in which one workstation 150 is arranged is shown. On the jig pallet 40 which is conveyed to the loading station 60 by the stacker crane 50, the scale 42 and the like are mounted, and the work 80 is mounted through a suitable jig and the like. There is.

FIG. 3 shows the details of the jig pallet. It shows a state in which the work 80 is detachably mounted on the jig 42 fixed on the jig pallet 40 via the mounting jig 44. Shows. On the other hand, workstation 150
In the distribution pallet 130 that is brought to the
Is stored. The operator is the loading station.
Between section 60 and workstation 150,
Work 8 between jig pallet 40 and distribution pallet 130
Execute 0 installation and removal.

In FMS, various kinds of work are processed. Therefore, the line controller 90 cooperates with the physical distribution host computer 190 to send the jig pallet 40, which the FMS needs to set up, to the loading station 60 with the highest priority. The operator attaches the material work 80 in the distribution pallet 130 simultaneously sent to the work station to the jig of the jig pallet 40, or repairs the completed work 80. The work of removing from the tool and storing it in the distribution pallet 130 is executed.

FIG. 4 shows two loading stations 150A, 1 for one loading station 60.
The layout which arrange | positions 50B is shown. Jig pallet 40
If there is a completion work above, the operator will complete
The work 80B is removed from the jig and is stored in the distribution pallet 130B of the one workstation 150B. Next, the distribution pallet 13 of the other workstation 150A
Take out the material work 80A from 0A, and the jig pallet 4
Attach it to the 0 jig. By adopting this layout, it is possible to smoothly perform the removal of the completed work and the setup of the attachment of the material work on the jig pallet 40 conveyed on the loading station 60. You can Further, the number of loading stations 60 attached to the FMS line is also appropriately set according to the number of machining centers 20.

FIG. 5 shows a system 200 for sharing a three-dimensional warehouse with a jig pallet and a physical distribution pallet. 3D warehouse 21
0 has a shelf 212 for the jig pallet 40 and a shelf 214 for the physical distribution pallet 130. Stacker crane 220
Has a function of handling both the jig pallet 40 and the physical distribution pallet 130. Stacker crane 22
Machining center 20 along the 0 running rail 222
And a loading station 60 for the jig pallet 40
Then, the workstation 150 of the distribution pallet 130 is arranged. The workstation 150 is shown in FIG.
It is also possible to prepare two stations and divide them into a station for raw materials and a workstation for finished products, as in the layout shown in. The line controller 90 outputs a command to the stacker controller 95 to convey the jig pallet 40 to the loading station 60. Physical distribution system host computer 190
Outputs a command to the stacker controller 95 to convey the physical distribution pallet 130 to the workstation 150. The stacker controller 95 sequentially sends these commands to the stacker crane 220.

FIG. 6 shows a connection state of a controller in charge of controlling each line. The line controller 90 in charge of the FMS line 10 independently controls the FMS line. Therefore, even when the physical distribution host computer 190 that controls the physical distribution line 100 and the production management host computer 300 that is in charge of production planning, production results, etc. are disconnected, the FMS line is a stand-alone system. You can continue driving as.

FIG. 7 and FIG. 8 show a flow chart of control processing by this control device. The FMS line controller 90 starts the process in step 1000 and then executes step 1010.
The contents of the setup work in the loading station 60 are determined, and the jig pallet used for this work is specified. In step 1020, the host computer 190 of the physical distribution system is inquired whether or not a physical distribution pallet or a jig pallet accommodating the material work to be used for the determined setup work can be prepared. Step 200
Logistics system host computer 1 started with 0
The process of 90 receives an inquiry from the line controller side in step 2010.

In step 2020, the content of the inquiry is judged, and in step 2030, the line controller is notified of the reply. The line controller having received the answer in step 1030 determines in step 1040 whether or not the setup work can be prepared.
To transport the jig pallet to the loading station. At the same time, the distribution system side also judges the preparation status in step 2040, and if preparation is possible, step 205
At 0, the distribution pallet is sent to the workstation. At this time, if the work station is to attach the material work to the jig pallet, the distribution pallet containing the material work is sent to the work station, and the work pallet is moved from the jig pallet. If the completed work is removed, the distribution pallet containing the completed work is sent to the work station.

After the above transportation is completed, step 15
At 00, the work by the operator is executed. The operator's work includes removing the completed work from the jig pallet and storing it in the distribution pallet, taking out the material work from the distribution pallet, and attaching it to the jig pallet. May be executed. When the work is completed, the operator turns on the work end switch attached to the loading station (step 1600). By operating this switch, step 161
At 0, the completion of setup work is reported to the FMS controller 90, and the logistics system host computer
This is also reported to the server 190.

On the FMS side, the jig pallet after the completion of the setup is sent from the loading station to the shelves of the three-dimensional warehouse or the machine tool in step 1620, and is returned to the initial state in step 1630. On the logistics system side, step 2
In 100, the FMS side receives a report from the FMS side indicating that the operator's work has been completed, and in step 2110, the distribution pallet is sent to work.
Transport from station to material warehouse, step 212
At 0, it returns to the initial state.

FIG. 9 shows an example in which the present invention is applied to a large-scale unmanned factory. In this embodiment, five F
MS lines 510, 520, 530, 540, 550 are provided. The first FMS line 510 has two loading stations 512 and 514. For example, the first loading station 512 is a loading station for mounting a material work, and the second loading station is equipped with a work cleaning device for processing. After washing the finished work,
If you use the station to remove the
Can be returned to the physical distribution system side.

The physical distribution system is provided with a three-dimensional warehouse indicated by reference numeral 600. The three-dimensional warehouse 600 has a set of two shelves 611, 612, 613 and 614, each of which has four stacker cranes 621, 622 and 62.
3, 624 is handled. A shuttle car 630 that connects each rack row across is also attached. Fourth FMS
The line 540 and the work stations 740 and 750 for the fifth FMS line 550 are arranged adjacent to the three-dimensional warehouse 600, and directly receive and carry out the work pallets by the stacker crane.

The first, second and third FMS lines 510,
Work station 71 provided at 520 and 530
Since 0, 720, and 730 are installed at locations away from the three-dimensional warehouse 600, the work pallets are transported to these workstations by a self-propelled carrier or the like. The self-propelled vehicle (AGV) 650 is guided by a guide wire 652 and works with a desired workstation.
Performs the delivery of the palette. A station 660 for transferring a work pallet to and from the self-propelled carrier 650 is also provided on the side of the three-dimensional warehouse 600. The physical distribution system is centrally controlled by the host computer 800. According to this example, a large-scale unmanned factory can be constructed. However, since each FMS line is a stand-alone system, it can operate independently of the physical distribution system. Therefore, even if a problem occurs in a part of the entire unmanned factory, the other parts continue to operate, so that productivity can be improved.

[0024]

INDUSTRIAL APPLICABILITY As described above, the present invention provides a large-scale unmanned production with the FMS line and the distribution line for carrying the material work into or out of the FMS line. In the system to be achieved, the loading station that handles the jig pallet used in the FMS line (the table pallet equipped with the jig to attach the work) and the logistics used in the logistics line It is a system in which a workstation for handling a pallet is arranged adjacent to each other, and the operator takes charge of delivery of the work between the two stations. FMS
The controller controlling the line and the host computer controlling the physical distribution system communicate with each other and send the requested pallets to the respective stations. Therefore, both stations arranged adjacent to each other serve as an interface between the FMS line and the physical distribution line. The FMS line and the physical distribution line are each configured as an independent stand-alone system so that the production can be continued even if the partner system fails.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an outline of a production system of the present invention.

FIG. 2 is a perspective view showing a layout of a loading station and a workstation.

FIG. 3 is an explanatory view showing a mounting state of a work on a jig pallet (jig pallet).

FIG. 4 is a perspective view showing another layout of a loading station and a workstation.

FIG. 5 is an explanatory diagram showing another layout of the production system.

FIG. 6 is an explanatory diagram showing a connection state between computers.

FIG. 7 is a flowchart of control processing.

FIG. 8 is a flowchart of control processing.

FIG. 9 is an explanatory diagram showing an example in which the present invention is applied to a large-scale unmanned factory.

[Explanation of symbols]

 10 FMS 20 Machining Center 40 Jig Pallet 50 Stacker Crane 60 Loading Station 80 Work 90 Line Controller 100 Logistics System 130 Logistics Pallet 140 Stacker Crane 150 Work Station 190 Logistics System Host Computer Host computer for production control 300

Claims (3)

[Claims] 1. A multi-tasking machine tool, a jig pallet provided with a jig for mounting work, which is exchangeably supplied to a table of the multi-tasking machine tool, and a jig pallet conveying device. , A processing system having a three-dimensional warehouse for storing a jig pallet, a distribution pallet for storing a material work and a completed work, a transportation device for the distribution pallet, and a three-dimensional warehouse for storing the distribution pallet. A logistics system, a loading station for receiving a jig pallet from the transport device of the processing system, and setting up a work for the jig on the jig pallet, and a logistics system transport. A production system in which a material pallet is supplied from an apparatus and a work station for carrying in a material work and a work station for finishing the work are arranged opposite to each other. 2. One work station is provided with two work stations, and the first work station is loaded with a distribution pallet containing a material work. The second work station is a work finished work.
The production system according to claim 1, wherein a distribution pallet for accommodating the waste is loaded. 3. The processing system and the physical distribution system constitute independent systems, respectively, and the processing system control device and the physical distribution system control device communicate with each other to provide a pallet adapted to the request to each station. The production system according to claim 1, which conveys.