KR100297280B1 - Production system control method and production system control device - Google Patents

Abstract

The present invention provides a production system control method and a production system control apparatus having good production efficiency, high degree of freedom of the system, and good operability, wherein a storage means is provided for each of the unit control means in the production system control method. Each storage means responds to the operation of its own work unit, which is the object of control, and corresponds to the unit status information such as position information, mode information, and instruction information of the work unit itself, and the operation of other work units other than the self. The unit status information such as the position information of the unit itself, the mode information, the instruction information, and the like are always stored in its own storage means, and the unit control means of each work unit stores the magnetic and other jobs stored in its storage means. Based on the unit status information of the unit, stored in its storage means. Production system control method and unit status information, and control of the operation of the own unit by a single operation program for operating the operation unit of their own alone and a common operation program for controlling several work units, An operating program, storage means for storing a common operation program, respectively, is provided, an information rewriting means, and a control unit are provided, and the common operation program has a divided operation program. will be.

Description

Production system control method and production system control device

1 is a block diagram illustrating the respective functions of the unit control means of the production system control apparatus of the first embodiment of the present invention;

2 is a block diagram of a production system control apparatus of this embodiment,

3 is a schematic plan view of the production system transfer machine of this embodiment,

4 is a front view of a display panel of the production system control panel of this embodiment,

5 is a front view of an operation panel of the production system operation panel of this embodiment,

6 is an operation explanatory diagram of the production system controller of this embodiment;

7 is a flowchart showing the control response of the production system controller of this embodiment;

8 is a flowchart showing the control contents of the production system controller of this embodiment;

9 is a block diagram illustrating the respective functions of the unit control means of the production system control apparatus of the second embodiment of the present invention;

10 is a block diagram of a production system control apparatus of a second embodiment of the present invention,

11 is a block diagram illustrating the functions of the unit control means of the production system control apparatus of the third embodiment of the present invention;

12 is a block diagram illustrating the respective functions of the unit control means of the production system control apparatus of the fourth embodiment of the present invention;

13 is a front view showing the operation panel of the fifth embodiment of the production system control apparatus of the present invention;

14 is a front view showing a menu screen of the display device of the fifth embodiment of the present invention;

15 is a front view showing an automatic driving operation screen of the display device of the fifth embodiment of the present invention;

16 is a front view showing a divided operation screen of the display device of the fifth embodiment of the present invention;

17 is a front view showing a single operation screen of a display device of a fifth embodiment of the present invention;

18 is a front view showing a single operation screen of the display device of a fifth embodiment of the present invention;

19 is a front view showing an operation guide screen of a display device of a fifth embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10 transfer machine 11: transfer device

12: processing unit 13: processing equipment

14 material 15 jig

16: loading unit 18: unloading unit

20: operation panel 21: control device

23: operation status display lamp 24: display panel

26, 81, 91, 111, 115, 121: Technical Department

29a: Emergency return button 29b: All stop button (emergency stop button)

30: operation preparation button 32: operation panel

34: common instruction button 36: individual instruction button

38: indicator lamp (display section) 40: unit controller

42: communication control device 44: common data memory

46: CPU 49: dedicated program memory

50: I / O control part (input / output part) 52: NC controller

59: communication line 60: single operation program

62: divided operation program 64: automatic operation program

68: memory dedicated to the unit 69: display device

70: menu screen 74, 83, 93, 113: display unit

80: Automatic operation operation screen 84, 124: Function display unit

90: division operation screen 95: division operation display

100: Unit operation screen

110: single operation screen of the unloading unit 18

116: switch selector 120: operation guide screen

F1 to F8: function keys

Detailed description of the invention]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method and a control apparatus for a production system such as a transfer machine, each of which is provided with an automatic processing unit or the like in a plurality of processing stations.

The conventional transfer machine is, for example, as disclosed in Japanese Unexamined Patent Application Publication No. 2-32370, and includes a unit control panel provided with a separate sequence control unit and a power supply unit for giving instructions based on a predetermined processing program for each processing unit; A main control panel having a sub-operation box for operating the unit control panel, a programmable sequence controller for instructing a predetermined sequence to the unit removal panel for each of the processing units, and the main control panel. A casting box is provided for batch operation of each unit control panel. The individual sequence control unit of the unit control panel and the programmable sequence controller of the main control panel are connected for data transmission, and the processing unit is collectively operated by the casting box. At the same time, for each processing unit by suboperating box It was configured to operate individually.

In the case of the prior art, since each processing unit is collectively controlled by the main control panel, all the processing information data from each processing unit is collected in the main control panel once, and the main control panel makes a predetermined judgment based on the data. Since a command was issued to the unit control panel of the processing unit, the time required for signal transmission, judgment, and command was taken, and the shortening of the cycle time of the transfer machine was prevented.

In addition, in the installation of the processing unit, it is impossible to confirm and adjust the overall control by the casting operation, except after the whole system is installed and finished, and this adjustment is extremely difficult. In addition, when the processing station or the processing unit is added later, the program of the main control board itself must also be changed, and there is a problem that there is no system freedom.

In addition, when all the processing units, transfer devices, and material holding fixtures are operated collectively from the main board, the operation must be performed through the operation buttons on the operation box, and the operator must go to the place where the operation box is installed. The larger the transfer machine and the like, the worse the workability.

SUMMARY OF THE INVENTION The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a production system control room production system control device having good production, high degree of freedom of the system, and good operability.

The present invention relates to a production system in which a plurality of work units are provided, each of which has a work unit for performing a predetermined work by an operation such as drilling or assembling, and a plurality of unit control means for operating the work unit corresponding to each work unit. As a control method, a storage means is provided for each of the unit control means, and the position information corresponding to the operation of the own work unit which is the control target and indicating the operation point of the work unit itself, the operation mode information of the system, The unit status information, such as instruction information indicating the operation of the unit, and the operation of other work units other than the self, and the unit status information, which is information of the other work unit itself, is always stored in its own storage means by rewriting each time. The unit control means of the working unit is stored in its storage means. Self-operation by a single operation program for controlling operation of one's own work unit stored in his / her storage means alone and a common operation program for controlling several work units on the basis of the unit status information of the magnetic and other work units suppressed. Production system control method to control the operation of the work unit.

In addition, the production system includes a transfer device and various jig, and the common operation program is divided for independently performing a predetermined divided operation operation including at least the operation of the transfer device and the simultaneous operation of the pre-gear. A driving program is provided. The common operation program further includes an operation preparation program and an automatic operation program for executing a series of operations of all work units. Each storage means of the unit control means stores the unit status information of all work units, and all the unit control means always equalizes the unit status information of each storage means. In addition, the unit status information is sequentially stored in its own storage means in each work unit, and in each work unit, the magnetic unit status information and at least the unit status information of the transfer apparatus are respectively changed. To be stored in the storage means. At least some of the plurality of unit control means are shared by one or several work units of the whole work unit, and each work part of the work unit is individually controlled.

In addition, the present invention provides a production system control apparatus provided with a plurality of work units each provided with a work unit for a given work, and a plurality of unit control means corresponding to each work unit and controlling the work unit. Operating the unit status information, such as position information, mode information, instruction information, etc., of the work unit itself of the entire production system including the work unit of the control object in each control unit and its work unit alone. It is a production system control device provided with a single operation program and a storage means for storing a common operation program for controlling a plurality of work units, and a transfer device and various kinds of jig provided in each of the work units. And information rewriting means for storing unit status information corresponding to one's own work unit and the unit status information of another working unit other than the child, while always rewriting them in their own storage means. It is a production system control apparatus provided with a control part which controls at least one work part based on the stored unit status information and each said operation program. The common operation program stored in each storage means of each unit control means includes at least one operation of the tsunsper device, for example, a small stroke conveyance lamp and a simultaneous clamp and unclamp operation of the front tool. It has a division operation program for independently performing a predetermined division operation operation. In addition, the common operation program also has an operation preparation program and an automatic operation program for executing a series of operations of the entire production system, such as transfer apparatus, whole work unit, loading, and unloading. In addition, the present invention is such that the information rewriting means makes the unit status information of each storage means of all the unit control means the same, and the unit status information of each of the work units corresponding to their work unit or other than the magnetic means. A production system control device for storing specific unit status information corresponding to a specific work unit in the storage means of the own unit control means.

In the production system control apparatus of the present invention, common unit status information and various operation programs are stored in the storage means for each work unit, and each unit control means looks at the unit status information of the respective storage means. In this judgment, the individual working parts are controlled in the automatic operation of the production system, the operation of the transfer apparatus, the division operation such as the simultaneous operation of the preposition, or the single operation of each work unit.

In addition, it is possible to perform predetermined control on another work unit from an arbitrary work unit for rewriting the unit status information stored in the storage means of each unit control means as different.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing.

1 to 8 show a first embodiment of the present invention. The production system control apparatus of this embodiment is for a transfer machine, and as shown in Fig. 3, in the material conveying direction from right to left. On the other hand, several processing units 12 which are working units each having a predetermined function in a series of steps are provided in parallel. The machining unit 12 is provided with a jig 15 for holding and fixing one or two processing apparatuses 13, which are working parts, and the raw material 14, corresponding to each station. In the front head of the transfer machine 10, a loading unit 16 carrying the material 14 on the transfer machine 10 is installed, and at the end, the machined material 14 is transferred from the transfer machine 10. The unloading unit 18 is installed. Between the loading unit 16 and the unloading unit 18, a transfer machine (not shown) constituting a conveying means for moving the raw material 14 to the next station by one step is provided. In this embodiment of the present invention, the transfer unit including the transfer device 11 as the work portion also constitutes one work unit. Then, the transfer unit, the processing unit 12, the loading unit 16, and the unloading unit 18, which is a work unit, are provided with an operation panel 20 for starting stop or other operation, and a control device 21 provided with each control circuit. Is installed on each.

In the operation panel 20, the display panel 24 provided with the operation state display lamp 22 shown in FIG. 4 is provided. The display panel 24 is provided with each operating state display lamp 22, a description section 26 describing the display contents, and each unit number display section 38 of the transfer machine 10. The operation state display lamp 22 and the description unit 26 operate all the processing units 12, the loading unit 16 and the unloading unit 18 of the transfer machine 10 in the state shown in FIG. The state can be displayed, and this may be given to the operation panel 20 of each unit, or unnecessary marks may be attached to each unit to remove only unnecessary ones.

Moreover, the operation panel 32 is provided with the operation panel 32 with the operation button 30 which performs various instructions and operations, such as a transfer operation and a machining operation. The operation panel 32 includes buttons for operation preparation instruction, automatic operation instruction, and division operation instruction, and includes a common instruction button 34 for giving a common instruction to the transfer machine 10, and a single operation instruction. Even if an individual instruction button 36 for individual operation is provided for each unit including a button, a display lamp 38 is provided in correspondence with the individual instruction button 36. The panel 32 and the common instruction button 34 are common to each unit, and the operation panel 32 replaces and attaches the individual instruction button 36 and the display lamp 38 for each unit. However, the common instruction button 34 may be attached only what is necessary by deleting unnecessary displays in accordance with each unit.

In each control apparatus 21, as shown in FIG. 2, it is a unit controller 40 which consists of a programmable controller which is a unit control means which performs various control of each processing unit 12, etc., and information rewriting means, A communication control device 42 for exchanging unit status information of each work unit is provided.

The unit controller 40 includes a common data memory 44 as a replaceable storage means such as a RAM, a control unit, for example, a CPU 46, and a program for driving control of a writing unit for each work unit. Dedicated program memory 46, such as the recorded RAM, and I / O control unit 50, which is a connection portion with an external device, are provided.

The unit controller 40 is connected via the I / O control unit 50 to the NC controller 52 or the like which is the work unit in the case of the processing unit 12, and controls the feed motor 54 and the like. The display panel 24 is connected to the operation state of the transfer machine 10.

The unit controller 40 is also connected to the operation panel 332 via the I / O control unit 50, receives an instruction from the operation button 30 of the operation panel 32, and assigns a predetermined operation to the NC controller. Instructions are given to working parts such as the 52, the jig 15, or the transfer device 11, and the display of the display portion 3R of the operation panel 32 is also controlled.

In addition, the unit status information of the work unit controlled by the unit controller 40 is written in the common data memory 44, and the unit status information of other work units is also written.

Here, as the unit status information, for example, position information indicating an operation point such as a moving end of the unit, an operating end of the clamp fixture, or the system operation mode independently of the automatic operation mode or a predetermined divided operation operation, may be used. Mode information, such as whether the divided operation mode to be performed or the single operation mode for operating a specific unit is selected, or for example, operation preparation instruction, automatic operation support, division operation instruction, or independent operation instruction, It contains instruction information such as unloading instruction / clamp instruction of the electric jig. The unit status information also includes, for example, abnormality information such as lubrication abnormality and tool damage.

The communication control device 42 controls communication of the unit status information between the communication control unit 56 and the communication control unit 56 and the common data memory 44 to exchange unit status information between the respective work units. CPU 58 is provided. The communication control device 42 rounds the UNIH status information of each work unit flowing through the communication line 59 from the communication control unit 56 of each work unit in accordance with a predetermined communication standard, and currently uses the common data memory 44. The unit status information stored in the data is rewritten, and the current unit status information of the self is loaded on the communication line 59.

In the program memory 40 in the unit controller 40 of each work unit, as shown in FIG. 1, the work unit of the work unit is mainly used when the unit is returned after the operation of the new tool or after the unit operation stops due to an abnormal operation. In order to operate solely, the operation of the transfer device or the simultaneous operation of all fixtures are performed, for example, when the operation of the entire system is stopped during the single operation program 60 and the machining, and the quality of the material is checked or when the entire abnormality is returned. The divided operation program 62 for independently performing the predetermined divided operation operation of the control unit, and the automatic operation program 64 for automatically executing a series of operation so-called cycle operations of all the work units are provided. The automatic operation program 64 is a transfer machine 10 as a whole that controls a work part of its own in cooperation with other work units by successively performing a series of machining operations.

In addition, the operation preparation program 66 for enabling each work unit and the unit dedicated memory 68 allocated for retrieving and storing only the necessary status information for each work unit from the contents of the common data memory 44. Is installed separately for each work unit. The operation preparation program 66, the automatic operation program 64, and the divided operation program 62 are all provided in common in each unit controller 40.

In each common data memory 44, unit status information of a work unit of the whole system including magnetic is stored, respectively. These unit status information is controlled by the communication control unit 56 and rewritten every time, for example, new unit status information is obtained from each of the work units.

Therefore, in the common data memory 44 provided in the unit controller 40 of each work unit, all the unit status information of the former occupational unit of the transfer machine including the magneto is always recorded all the same through the communication line 59. .

The operation of the transfer machine 10 of this embodiment will be described.

In the transfer machine 10 of this embodiment, as shown in FIG. 6, the transfer apparatus 11 operates along with the transfer machine 10 like a known transfer machine, and the transfer bar (not shown) rises and moves forward. , The material 14 is moved to the next station by descending.

Moreover, when the raw material 14 moves to the side by one pitch by the transfer bar of the transfer apparatus 11, and the transfer bar descends, the loading unit 16 moves the raw material 14 to the base end of a transfer bar newly. In order to do this, the projection engaging with the raw material 14 is rotated forward, and the new raw material 14 is transferred to the transfer bar by the pusher in the next step. After the pusher is retracted and the projection is rotated halfway to the insertion process of the next material (14).

In addition, at the timing when the transfer bar is lowered, as shown in FIG. 6, in each processing unit 12, in order to perform predetermined processing on the newly conveyed raw material 14, the jig 15 is formed of a raw material ( 14), the spindle motor of each machining unit 12 rotates, the machining apparatus 13 moves forward, the predetermined machining is performed and the machining apparatus 13 retreats and the spindle motor stops. The clamp of the jig 15 is released. In the unloading unit 18, the raw material 14 subjected to a series of processing is sent out from the transfer machine 10 by a work part such as a pusher in the sieving with the transfer bar lowered. The movement state of each work unit for each process in the transfer machine 10 is displayed by the operation state display lamp 22 of the display panel 24.

The control contents of the transfer machine 10 of this embodiment will be described based on the flowcharts of FIGS. 1, 7 and 8.

Here, all of the judgment items, setting contents, and the like described below are all written in the same state in the common data memory 44 of each work unit via the communication control device 42 and the communication line 59 as unit status information. It is based on what is lost or rewritten. In addition, the selection or instruction | indication in each work unit in the following description is based on the operation by each operation panel 20. As shown in FIG.

When the operation button 30 for operation preparation of the common instruction button 34 of any one operation panel 20 is pressed among the operation panels 20 installed in each work unit, the operation preparation program 65 starts in the work unit first. do. In the operation preparation program 65, as shown in FIG. 7, it is determined whether or not there is an operation preparation instruction in its work unit, and when there is an operation preparation instruction, the common data memory 44 of the work unit is determined. The bit data of the operation preparation instruction is set to 0N, and the bit data of the operation preparation instruction is set to ON at the same address in the common data memory 44 of all the other work units via the communication line 59 as well. In this way, each work unit starts to prepare for operation individually. When there is no instruction for emergency stop in each work unit, automatic operation, divided operation or single operation can be performed as described later. In addition, when an emergency stop instruction is issued from one work unit, all work units are emergency stop.

In the automatic operation program 64, as shown in FIG. 7, the work unit of the self is ready for operation, and in each work unit, whether the work unit and the other work unit of the work unit have all selected the auto operation mode. The unit status information of the common data memory 44 is determined and judged.

If all the work units have selected automatic operation by the common data memory 44, it is determined whether or not there is an automatic operation instruction in the own work unit, and if there is an instruction, the common data memory 44 ) Turn ON the automatic operation instruction bit. The same address of other common data memories is also changed to ON.

If there is no automatic operation instruction in its own work unit, the automatic operation instruction bit of its common data memory 44 is turned off, and whether or not there is an automatic operation instruction in another work unit. View and judge the unit status information in (44).

If the automatic operation instruction is issued from the operation panel 20 of the magnetic or any other work unit, it is determined whether the magnetic and other work units are capable of automatic operation, and if possible, the automatic operation is started from the own work unit. . At the same time, the bit data ON which is automatic operation is recorded in its common data memory 44. Since the same thing is performed in the other work units, the other work units also start the simultaneous automatic operation, and the bit data ON which is the automatic operation is written in the common data memory 44 to have the same contents. In this manner, the same program is executed in all other unit controllers, and as a result, all work units start automatic operation. In addition, when no automatic operation instruction is given in any work unit or when automatic operation is not possible, each work unit performs the automatic operation stop operation in which automatic operation is not performed.

In the divided operation program 62, as shown in FIG. 8, when the work unit is ready for operation and the operation panel 20 selects either the automatic operation mode or the independent operation mode which combines the divided operation mode, Determine if there is.

In the case where all modes are selected, it is determined whether all other work units have selected the automatic operation mode, and when all other work units have selected the automatic operation mode, a predetermined divided operation operation, eg For example, it is determined whether or not the transfer device 11 is instructed by the clamp of the raw material 14.

In accordance with the presence or absence of an instruction, the bit of the common data memory 44 is switched to either ON or OFF, and when there is an instruction, it is determined whether or not the work unit thereof is capable of predetermined operation of the divided operation.

When predetermined operation by the division operation is possible, the bit data whose division of the operation unit is the division operation is written in the common data memory 44, and the common data memory 44 of all the production lines is communicated through the communication line 59. At the same address, the work unit is written with the division operation bit ON. The division operation program is also executed in all other unit controllers, and the work unit in which the division operation bit is turned on performs a predetermined division operation operation such as a work clamp. If the split operation is not possible, the split operation is stopped.

If the self-working unit selects automatic operation, it is determined by which other work unit there is an instruction for division operation, and when there is a division operation instruction, it is judged whether or not division operation operation is possible. The work unit starts the predetermined dividing operation, and performs the dividing operation operation with its own work unit.

In the single operation program, as shown in FIG. 8, it is judged whether or not the work unit is selected for the single operation mode, and when the short width operation mode is selected, the operation unit is again placed in the single operation mode. Determine if there are any instructions. When the single operation instruction is given, the single operation operation is performed in its own work unit.

Here, since the unit controller 40 of each work unit is all provided with the same configuration and control program, it is possible to output unit status information for performing a predetermined operation on another specific work unit to an arbitrary work unit. It is also possible to provide other unit operation instruction means. That is, as a specific work unit, the unit status information for performing the advancing / removing operation of the transfer bar of the transfer machine 10, the hydraulic control of the hydraulic system, or the unloading operation of the material by the unloading unit 18 is common. The unit status information can be rewritten from the work unit under consideration so that it can be stored in the data memory 44 and perform a predetermined operation with respect to another specific work unit.

With respect to this unit status information, it is judged whether or not each work unit is unit status information instructing its operation, and the unit controller 40 which is the specific unit control means performs a predetermined operation based on the unit status information. It is done to the working part of the work unit. Thereby, the predetermined operation | movement can be made to a specific work unit from the operation panel 20 of an arbitrary work unit, workability improves, and the scalability of a system can also be improved.

The status data in the common data memory includes bit data of various operation instructions for each work unit. In the operation preparation, automatic operation, and divided operation programs, if there is an operation instruction in its work unit, the operation instruction bit of its work unit If the data is turned ON and there is no data, the program is executed based on the operation instruction bit data of another work unit. As a result, various operation instructions are available from one's own work unit to another work unit and from another work unit to one's own work unit. Each may initiate operation of ready operation, automatic operation, split operation or single operation.

According to the transfer machine 10 of this embodiment, since each work unit has a unit controller 40 and a communication control device 42 for controlling the above, each work unit has its own common data memory ( Since the operation status of each work unit is executed while checking the unit status information of the other work units in 44), the processing speed can be significantly increased, and the cycle time of the transfer machine 10 can be greatly shortened. It is possible to plan a significant reduction.

That is, in the case of the conventional batch control by the main control panel, the unit status information for each unit is once collected in the memory in the main control panel, and judged by the control device in the main control panel based on this, and then the operation instruction of the unit is sent to each unit control panel. It has been delivered. Therefore, it took a round trip time and a judgment time of communication to collect and judge all the unit status information of each unit and to transmit the judgment result to all the units.

On the other hand, in this embodiment, since only the unit status information of the other work unit is transmitted to each work unit, the time taken for communication and judgment is merely a time for causing the unit status information to be performed for the whole work unit. This is because the time is less than half the time of the prior art.

Next, a second embodiment of the present invention will be described with reference to FIGS. 9 and 10. Here, the same members as in the above-described embodiment are denoted by the same reference numerals and description thereof will be omitted. In this embodiment, two work units adjacent to each other are controlled by one unit controller 40. Therefore, the communication control device 42, the CPU 46 in the unit controller 40, and the common data memory 44 are shared.

However, the program memory 48 of the unit controller 40 includes three types of independent operation programs 60 corresponding to each work unit, a common divided operation program 62 for each work unit, and an automatic operation program 64. ), And only two operation preparation programs 66 are provided, and each control unit can be controlled through one input / output unit 50. In other words, within the range of the processing capacity of the CPU 46, a plurality of work units are individually controlled, and the first distributed point is referred to as individual dispersion control of each work unit based on the common data memory 44. It is the same as an Example.

Accordingly, the efficient use of the unit controller 40 is possible, and the cost and space efficiency are also improved. In addition, the number of communication control devices 42 can be reduced, and the communication processing of data can be made efficient with respect to the above effects.

Next, a third embodiment of the present invention will be described with reference to FIG. Here, the same members as in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, as in the second embodiment, two work units adjacent to each other are controlled by one unit controller 40, and the CPUs in the communication controller 42 and the unit controller 40 are controlled. The single-operation program 60 including two types of programs corresponding to each working unit in the program controller memory 48 of the unit controller 40 while sharing the common data memory 44 with the common reference numeral 46. At the same time, the divided operation program 62, the automatic operation program 64, and the operation preparation program 66 common to each work unit are shared.

The unit dedicated memory 68 is provided as memory dedicated to the work unit, respectively. Then, the control for each work unit is made possible through one input / output unit 50. Also in this embodiment, within the range of the processing capacity of the CPU 46, several work units are individually controlled, and are referred to as individual distributed control of each work unit based on the common data memory 44. Is the same as the first embodiment.

According to this embodiment, in addition to the same effects as in the second embodiment, efficient use of the program dedicated memory 48 is enabled. In particular, it is effective in that each operation program is shared by the work unit which moves a workpiece | work to the adjacent machining stations in order by the same machining program in a transfer machine, and processes it.

Next, a fourth embodiment of the present invention will be described with reference to FIG. Here, the same members as in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, as in the third embodiment, two work units are controlled by one unit controller 40, and the CPU 46 in the communication controller 42 and the unit controller 40 is controlled. And the common data memory 44 are shared. In this embodiment, however, in the work units facing each other, the jig 15 is shared and the NC controller 52 is provided to face each other, and the program memory 48 of the unit controller 40 for controlling them is provided. Has a single operation program 60 including two kinds of programs corresponding to each work unit, and at the same time, a divided operation program 62, an automatic operation program 64, and an operation preparation program 66 common to each work unit are provided. Common to each NC controller 52 or the like. In addition, the unit dedicated memory 68 is provided respectively as a processing unit dedicated memory of each NC controller 52.

Then, each NC controller 52 is controlled through one input / output unit 50. Also in this embodiment, within the range of the processing capacity of the CPU 46, the processing units having the opposing NC controllers 52 are individually controlled, and each work unit based on the common data memory 44 is used. Is the same as the first embodiment in that it is called individual dispersion control.

Next, a fifth embodiment of the present invention will be described with reference to FIG. Here, the same members as in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. This embodiment is related to a transfer machine as in the first embodiment, and the unit operation panel 20, as shown in FIG. 13, displays such as CRTs and liquid crystal panels, and display devices. It consists of a screen control apparatus (not shown) for controlling the screen of (69). The display device 69 is provided with function keys F1 to F8 composed of touch switches formed at the bottom of the screen, an emergency return button 29a composed of a push button switch, and a total stop button 29b. The function keys F1 to F8 operate the contents displayed on the screen of the display device 69 as described later. The emergency return button 29a returns each work unit to the retracted position during the automatic operation. The emergency stop button 29b stops the operation and stops the entire functions of the hydraulic pressure.

The display contents of the display device 69 are controlled by a screen control device (not shown), and the desired screen is selected by the menu screen 70 shown in FIG. The screen which can be selected is the automatic operation operation screen 80 for the automatic operation of the transfer machine 10 shown in FIG. 15, and the division operation divided | segmented by each work type of the transfer machine 10 shown in FIG. Single operation screen 100 for operating the divided operation screen 90 alone for each processing unit 12 of the transfer machine 10 shown in FIG. 17, and independent of the unloading unit 18 shown in FIG. The operation screen 110 and the operation guide screen 120 shown in FIG. 19 are displayed alternately.

Replacement of the display screen means mode selection, and each screen is selected by pressing a function key corresponding to the display contents of the function display unit 74 in the menu screen 70 shown in FIG. 14, for example, F1 to F8. It is.

Next, the display content of each item of the menu screen 70 is demonstrated. First, in the automatic operation operation screen 80 during the automatic operation of the transfer machine 10, as shown in FIG. 15, a description section describing various states of the transfer machine 10 during and after the automatic operation ( 81 and a display unit 83 for displaying the transfer machine 10 when it is in a state of a description of the description section 81 is provided.

At the bottom of the screen, function keys F1 to F8 are provided with a function display unit 84 that describes the operation contents for performing a predetermined function at the time of automatic operation corresponding to 1: 1.

Here, when the function key F1 is pressed, an alarm buzzer sounds, and when the function key F2 is pressed, operation preparation is instructed, the operation preparation operation of the transfer machine 10 is started, and a hydraulic pump, a lubrication pump, and the like start operation. When the function key F3 is pressed, automatic operation is instructed, and the automatic operation which performs a series of processes continuously starts, and when the function key F4 is pressed, this automatic operation is stopped. Therefore, here, function keys F3 and F4 serve as automatic driving operation means. When the function key F6 is pressed, the transfer machine 10 stopped by an abnormal occurrence is set to an initial state. When the function key F7 is pressed, the details of the state at that time are displayed on the screen of the display device 69, and when the function key F8 is pressed, the menu screen is returned.

The division operation is performed by the transfer operation of the transfer apparatus 10 or the simultaneous clamp unclamp operation of the front tool, for example, during a series of operations of the transfer machine 10. The division operation screen 90 during the division operation is carried out. As shown in FIG. 16, the description section 91 and the display section 93 are described which describe various states of the transfer machine 10 during and before the split operation as described above.

At the bottom of the screen, a function display section 94 is provided which describes the operation contents for performing the predetermined functions for the split operation in correspondence with the function keys F1 to F8 at 1: 1.

In addition, a division operation display unit 95 which performs a predetermined division operation in the division operation is formed in the center of the screen, and is formed so as to perform division operation at the location where the cursor is located by the control from the unit controller 40.

Here, when the function key F1 is pressed, an alarm buzzer sounds, and when the function key F2 and the function key F3 are pressed, the cursor of the division operation display portion 95 moves in the direction of the arrow. The cursor moves to the right to move from the upper right to the lower left, and to the left to move from the lower left to the upper right. When the function key F4 is pressed, the dividing operation in which the cursor of the dividing operation display unit 95 is located is performed in the return direction, and the respective working units are positioned at the original positions of the dividing operation. On the contrary, when the function key F5 is pressed, the division operation is instructed to start the division operation indicated by the cursor. The functions of the function keys F6, F7, and F8 are the same as those of the automatic operation operation screen 80.

In unit single operation, each processing unit 12 of the transfer machine 10 independently performs a predetermined operation. In the unit single operation screen 100, as shown in FIG. 17, the unit single operation is performed as described above. The description part 101 and the display part 103 which describe various states of the transfer machine 10 before and after the middle are provided.

At the bottom of the screen, there is provided a function display unit 104 which describes the following violation operation function to perform a predetermined function for unit alone operation in correspondence with function keys F1 to F8 at 1: 1. The operation of unit single operation is also performed by the control from the unit controller 40.

Here, pressing function key F2 shifts to the next step of unit single operation operation, pressing function key F3 is instructed to start single operation and pressing function key F4 stops single operation. When the function key F5 is pressed, the processing apparatus 13 of the processing unit 12 returns to its original position. The functions of the function keys F1, F6, F7, and F8 are the same as those of the automatic driving operation screen 80.

The unit single operation screen can also be changed to the single operation screen 110 of the unloading unit 18, as shown in FIG.

As described above, the single operation screen 110 is provided with a description unit 111 and a display unit 113 which describe the operation contents during the single operation. In addition, a selector 116 of a touch switch for selecting an operation content is provided in the center of the screen, and a description unit 115 of the operation content corresponding to the number of the selector 116 is displayed laterally.

Then, a function display section 114 which performs single operation of the unloading unit 18 in correspondence with 1: 1 is provided to the function keys F1 to F8.

Pressing the function key F2 will switch to the previous screen and pressing F3 will switch to the next screen. Press function key F4 to return to the home position, and press function key F5 to start operation. The functions of the function keys F1, F6, F8 are the same as those of the automatic operation operation screen 80.

In the operation guide screen 120, as shown in FIG. 19, the description unit 121 is provided, and the function display unit 124 is provided corresponding to 1: 1 in the function keys F1 to F8. have.

Pressing function key F2 changes to the previous screen and pressing function key F3 changes to the next screen. The functions of the function keys F1, F6, F8 are the same as those of the automatic operation operation screen 80.

The operation of the transfer machine 10 of this embodiment first calls up the menu screen 70 by an arbitrary unit operating panel 20 that performs operations among the various unit operating panels 20 provided for each processing unit 12. The desired work contents are selected by the menu screen 70.

In the case of autonomous driving, the screens of the display devices 69 of all the unit control panels 20 are changed to the autonomous operation operation screen 80 for autonomous operation. First, the operation preparation function key F2 is pressed. This operation preparation operation is necessary at the time of the first operation also in an operation other than automatic operation. After the operation preparation operation is completed, in order to operate continuously by automatic operation, press the function key F3 for automatic operation. Thereby, the transfer machine 10 repeats a predetermined process, it operates continuously continuously automatically, and performs predetermined | prescribed processing. During this automatic operation, the operation state is always displayed on the display unit 83 on the screen of the display device 69. When the automatic operation is to be stopped, press the function key F4 which is the automatic operation stop button to stop it.

Subsequently, in the division operation, the division operation is selected from the menu screen of the display device 59 by the operation unit 20 of the operation unit. Then, on the screen of the display device 69 changed to the division operation screen 90 for division operation, pressing the function key F2 or the function key F3 selects the desired division operation from within the division operation display unit 95, and the function Press the key F5. As a result, the transfer machine 10 performs a predetermined division operation operation. When the function key F4 is pressed, the operation unit returns to the original position of the division operation displayed. During this division operation, the operation state is always displayed on the screen of the display device 69 by the display unit 93.

In the case of unit alone operation, " alone " is selected from the menu screen of the display device 69 of the unit operation panel 20 to operate, and the unit single operation screen 100 for single operation is changed. Then, the function units F2 to F4 are pressed to operate the machining unit 12 alone. Even during the unit operation alone, the display state 103 of the display device 69 is always displayed on the screen. In addition, the single operation of the unloading unit 18 which calls out and performs the single operation screen 100 in single operation can be performed from the arbitrary operation panel 20. As shown in FIG.

The control of the transfer machine of this embodiment is also similar to that of the transfer machine of the first embodiment, and exhibits the same effects. In addition, since the display device 69 provided in the operation panel 20 changes the screen to perform a desired operation, the operation panel 20 can be miniaturized, and moreover, it can have many functions.

In the work unit of the first embodiment, operation buttons for giving instructions to all the work units are provided in each work unit. However, the operation buttons may be selected and attached to each operation panel as necessary. The operation status indicator of the panel can be the same concept.

Moreover, the operation panel which performs the operation common to all the work units may be provided collectively in the predetermined | prescribed operation panel, and only the operation button for operation of a magnetic work part may be provided in the operation panel of another work unit. However, even in this case, the same program, control device, and memory are provided in the unit controller and communication control device of each work unit.

The production system to be applied is applicable not only to a transfer machine but also to a production system in which various work units are operated in connection with a so-called flexible transfer machine or another automatic assembly device.

In the present embodiment, one working unit is included in the form of a jig included in one or two processing devices for each processing station. However, the present invention is not limited to this, and the jig is used from one or two processing devices for each station. One work unit may be removed and one work unit may be used, and one work unit may be used for each of two processing apparatuses facing each station. Further, within the range of the processing capacity of the CPU which is the control means installed in each work unit, control of any of several work units may be performed by one CPU individually.

[Effects of the Invention]

In the production system control method and production system control apparatus of the present invention, each work unit is provided with storage means for recording the unit status information of the other work unit in common, and each unit has its own unit status information sequentially changed. At the same time, the unit status information of a work unit other than the self is also changed sequentially into its storage means, and the unit control means of each work unit is based on the unit status information recorded in its storage means. By controlling the work unit alone or in conjunction with other work units, each work unit can quickly know the unit status information, the processing time of the control device is short, and the production efficiency can be greatly improved.

Moreover, since the unit control means of each work unit is provided independently, and the same unit status information and program are stored in each storage means, predetermined work can be performed at the discretion of the respective unit control means. It is easy to add or delete units, and if individual work units operate normally even when the production system is overheated, the entire production system also operates normally, and the adjustment in case of overheating is very easy.

In addition, when an operation operation is performed, the operator rewrites the unit status information for operating another work unit from an operation panel of an arbitrary work unit, thereby instructing or stopping a predetermined operation for another work unit, for example, all automatic operations, or It is also possible to operate a transfer device or an electric device as a split operation, and is effective also in terms of operability, especially in a large production system. In addition, it greatly improves the flexibility and reliability of the system.

Claims (12)

In a control method of a production system provided with a plurality of work units each provided with a work unit for performing work by a predetermined operation, and a plurality of unit control means corresponding to each work unit and controlling operation of the work unit, A storage means is provided for each of the unit control means, and each storage means corresponds to the operation of its work unit to be controlled, and the unit status information such as position information, mode information, instruction information, etc. of the work unit itself, Corresponding to the operation of other work units, and storing unit status information such as position information, mode information, and instruction information of another work unit itself in its own storage means, and storing them in their own memory at all times, and the unit control means of each work unit On the basis of the unit status information of the magnetic and other work units stored in the storage means, a single operation program for controlling the operation of the own work unit geared to the own storage means alone and a common operation for controlling several work units. Specially controlling operation of own working part by operation program How to control production system of. 2. The production system according to claim 1, wherein the production system includes a transfer device and various kinds of jig, and the common operation program independently performs a predetermined divided operation operation including at least the operation of the transfer device and the simultaneous operation of all the jig. A production system control method comprising a split operation program for performing. The method according to claim 2, wherein the common operation program comprises an operation preparation program and an automatic operation program for executing a series of operations of all work units. 2. A production system according to claim 1, wherein each storage means of the unit control means stores unit status information of all work units, and all unit control means always equalizes the unit status information of each storage means. Control method. 5. The production system control method according to claim 1, 2, 3 or 4, wherein in each work unit, the unit status information is sequentially stored in one's own storage means. 4. The production system control according to claim 1, 2 or 3, wherein in each work unit, the magnetic unit status information corresponding to the own work unit and at least the unit status information of the transfer apparatus are changed and stored in the storage means. Way. 4. A method according to claim 1, 2 or 3, wherein at least some of the plurality of unit control means are shared with one or several work units of the whole work unit, and each work part of the work unit is individually controlled. Production system control method. A plurality of work units each provided with a work unit for a predetermined work, a plurality of unit control means corresponding to each of the work units and controlling the work unit, a transfer device provided in each of the work units, and various jig In the production system controller, Each of the unit control means has unit status information such as its own position information, mode information, or instruction information, its own position information, and its own position information or all of its own work unit corresponding to its own work unit to be controlled. A storage means for storing unit status information such as information and instruction information, a single operation program for right-hand operation of its own work unit, and a common operation program for controlling several work units, respectively; And information rewriting means for storing the unit status information corresponding to the own work unit and the unit status information of the other work unit other than the self, while always rewriting them in the storage means, A control unit for controlling at least one of the work units based on the unit status information stored in the storage unit and the respective operation programs; And said common operation program has a divided operation program for independently performing a predetermined divided operation operation including at least the operation of said transfer apparatus and the simultaneous operation of said premise. 9. The production system control according to claim 8, wherein the common operation program stored in each storage means of each unit control means has an operation preparation program and an automatic operation program for executing a series of operations of the entire work unit. Device. 10. The control unit according to claim 8 or 9, wherein each storage means of each unit control means stores unit status information of all work units, and the information rewriting means controls each unit so that the unit status information of all unit control means is the same. Production system control device, characterized in that for rewriting the storage means of the means. 11. The production system control apparatus according to claim 10, wherein said information rewriting means stores the unit status information in each working unit in turn by storing the unit status information in a self storage means. 10. The apparatus according to claim 8 or 9, wherein said information rewriting means stores, in each working unit, its unit status information corresponding to its own work unit and at least the unit status information of the transfer apparatus in said storage means of its unit control means. Production system controller, characterized in that.