JP2002091538A - Method for determining die manufacturing schedule - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily draw up complicated and wide-ranging schedules in die manufacturing processes. SOLUTION: A schedule system 20 determines working schedules by dividing them into long term (several months to several weeks before start of working) and short term (immediately before to several weeks before the start of working) including work process instruction information to manufacture dies based on external information including machine type plan information 44, drawing release information 46, material arrival information 48, outside product arrival information 50 and components arrival information 52. Then plans according to work processing abilities are made for each calss in a long-term schedule determination process and allocation plans of works are made in a short-term schedule determination process. Thus, the complicated and wide-ranging schedules in the die manufacturing process are easily drawn up.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold applied to a mold manufacturing system in which a mold for producing a vehicle body and parts is processed by a plurality of processing machines in parallel based on a model development plan. The present invention relates to a method for determining a mold manufacturing schedule that enables a mold manufacturing schedule to be determined in a short time.

[0002]

2. Description of the Related Art Conventionally, a mold manufacturing factory has introduced a computer to automate a manufacturing process and a production control process. A representative one is the DNC (Direct Numer
ical control) system and process scheduler.

[0003] The DNC system refers to various CAMs (Computing
er Aided Manufacturing) This is an in-plant support system that supports the operation of processing machines. It uses a computer to convert CAM data that was conventionally sent on floppy (registered trademark) disks to processing machine control devices. The data is transferred directly to the control device of the processing machine online. This makes it possible to cope with an increase in the capacity of the CAM data itself due to the three-dimensionalization of the CAM data, and is effective in improving the efficiency of the entire factory.

[0004] A process scheduler is a Gantt chart (a type of bar graph used for planning and managing production, in which time is plotted on the horizontal axis and time is plotted on the vertical axis, so that equipment in the factory can be efficiently operated. The operation plan is designed using equipment, people, etc., so that the work flow can be easily understood.

However, in many cases, the DNC system is mainly managed by the design department, and the scheduler is mainly managed by the production management department. Since each department operates independently, the mutual information can be effectively used. Absent.

Although the scheduler can make an operation plan, a means for automatically collecting actual operation results, a means for re-planning based on machining results, a means for using man-hour results in the accounting department, etc. There was no. In addition, since the notification of the drafted plan to the processing site is performed in writing, it takes time, and there is a possibility that the notification may be omitted.

[0007]

Most of the molds manufactured in a mold manufacturing plant are single products of the same type, and it is rare that the same processing steps can be applied to other products as they are. As a result, the number of drawings increased,
The management of the sending of drawings and the processing instructions between the departments in the production management department and the manufacturing site department including the processing machinery are confused, which hinders efficiency.

[0008] Further, since many automobile parts are large, such as side panel outers and bonnets, there are many processing steps, and it is difficult to control the steps. Furthermore, there are parts that do not arrive on time for delivery, mechanical troubles, drawing troubles, etc., and it is necessary to frequently rebuild the production plan, which complicates the problem.

[0009] On the other hand, recently, competition in the development of automobiles has become intense, and the product development cycle tends to be shortened. In such a situation, the production of resin dies and press dies for automobile parts has also become important issues in terms of short delivery time and low cost. Therefore, the management of the machining process is required to have detailed items in monthly or weekly units, and there is a possibility that the processing cannot be completed sooner or later if the plan depends only on humans.

[0010] Further, as an incidental problem, the CAM data size is increased due to the high quality processing of the product, and the processing capability of the computer system is also insufficient.

As described above, computer systems have been introduced for automation, but each system is operated independently for each department, and mutual information cannot be used effectively. . Therefore, for example, since the CAM data of the design department and the processing instruction information of the production management department do not match, a situation where the processing site is confused has occurred.

The mold manufacturing schedule includes design of the mold, creation of CAM data for machining based on the design data, machining by a machining machine based on the CAM data,
There are various processes such as finishing by a processing machine or a skilled worker, a trial punching process, and a shipping schedule.

In this case, in the processing step by the processing machine,
Irregular operations such as mechanical troubles, schedule changes, and sudden processing requests frequently occur.

In addition, there is a need for a complicated schedule in a short time, such as a large number of machining start conditions, simultaneous assignment of mechanical equipment (machining machines) and operation personnel to the machining process, and re-planning. Cannot meet such demands.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a method for determining a mold manufacturing schedule that enables a complicated and diverse schedule in a mold manufacturing process to be easily planned. Aim.

[0016]

SUMMARY OF THE INVENTION The present invention relates to a method for determining a die manufacturing schedule applied to a die manufacturing system for manufacturing a die for producing a vehicle body and parts by using a plurality of processing machines. Based on the information, the management items are classified into a plurality of hierarchies, and for each of the classified hierarchies, the amount of work in a first period from at least several months to several weeks (preferably two weeks) from the start of processing is integrated. A first period schedule determining step of determining a schedule within the first period from the integrated work amount for each layer and a predetermined work processing capacity for each layer; After the schedule of the period is determined, the second period from several weeks (preferably two weeks before) the start of processing of the processing machine to immediately before the start of processing.
A second period schedule determining step of determining a schedule including a combination allocation of the processing machine and the personnel during the period (2) (the invention according to claim 1).

According to the present invention, based on external information,
Classify management items into multiple layers. In the schedule determination process, planning is performed separately for a first period that is a long period and a second period that is a short period. That is, in the long-term (at least several months to several weeks before the start of machining) schedule determination process, a plan corresponding to the work processing capacity is set for each layer, and a short-term (from immediately before the start of machining to several weeks before the start of machining) In the schedule determination process, a work assignment plan is made.

As described above, in the first period schedule determining step, a plan corresponding to the work processing capacity is set for each layer, and in the second period schedule determining step, the work allocation plan is set. A suitable schedule can be determined for each long-term or short-term purpose. As a result, a complicated and diverse schedule in the mold manufacturing process can be easily planned.

In this case, in the first period schedule determining step, when the first period schedule is determined,
By removing the desired work from the processing schedule or changing the processing start time for a plurality of hierarchies, it is possible to easily examine external processing according to the processing capacity of the processing machine. (The invention according to claim 2).

Further, since the plurality of hierarchies are composed of seven hierarchies of a model, a product, a molding process, a mold, a mold part, a work process group, and a work process, a schedule is created for all the hierarchies of the mold process. (The invention according to claim 3).

Further, in the first period schedule determining step, the processing speed of the schedule creation is increased because the target is the hierarchy of the model, the product, the molding process, the mold, the mold part, and the work process group among the plurality of hierarchies. It is possible,
In the second period schedule determination process, since all the layers of the plurality of layers are targeted, a detailed plan can be made (the invention according to claim 4).

Further, in the first period schedule determination step, the input operation can be greatly simplified since the determination is made with reference to the model hierarchy standard man-hour database prepared in advance. 5).

[0023]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of a mold manufacturing system 10 according to this embodiment.

The mold manufacturing system 10 is a mold manufacturing system for manufacturing a mold for producing an automobile body and parts using a plurality of processing machines.

The mold manufacturing system 10 basically has a C
AM system 12, DNC as processing data storage means
Server system 14, schedule system 20 as schedule creation management means, machine terminal system 28 including a plurality of machine terminals 30 as processing machine terminals, man-hour management system 4 as man-hour management means
0, an accounting server 42, and a LAN (Local Area Network) connecting these to each other via signal lines.

In the mold manufacturing system 10, except for the machine terminal system 28, the CAM system 12, D
NC server system 14, schedule system 20,
Machine terminal system 28, man-hour management system 4
0, the accounting server 42 is composed of one or a plurality of personal computers, respectively.

Here, as is well known, the personal computer includes a main body, a display (display) connected to the main body, and a data input unit including a mouse, a keyboard, and the like. The main body includes a CPU as a central processing unit and an RO in which BIOS and the like are recorded.
M, a hard disk as a large-capacity storage means in which system programs such as an OS and the like and application programs are recorded, a work RAM (storage means), a timer as a timekeeping means, and other input / output interfaces.

LA for interconnecting the above-mentioned systems and the like
N include Ethernet (registered trademark) (IEEE802.
3) is adopted. In FIG. 1, each system is schematically shown by a line connecting arrows according to the flow of data, but actual signal lines (transmission / reception lines) do not need to be connected in this manner, and are star-type, bus-type, and ring-type. Any connection, such as a type, may be used. A LAN other than Ethernet may be used, or a wireless LAN using radio waves or the like may be used.
In addition, LAN is not provided exclusively for this system,
It may be common to other systems.

In the present embodiment, unless otherwise specified, all data transmission and reception are performed online on this LAN.

Hereinafter, each system will be described.

The CAM system 12 has a CAD
(Computer Aided Design) This is a system in which a designer creates CAM data including NC data of mold production based on CAD data representing a mold shape and the like obtained from a system. The created CAM data is stored in a path Ra. Is transmitted to the DNC server 18 through the. At this time, C transmitted to the DNC server 18 and stored in the DNC server 18
The AM data includes registration information including a type code, a model code, a product code, and a process code in addition to the NC data.

The CAD system and the CAM system 1
2 can be integrated as a system.

In the DNC server 18, the CAM system 1
When the data is registered (stored) from the route 2, the route R is automatically registered.
b, the process server 26 of the schedule system 20
To transfer the registration information.

The process server 26 checks the consistency of the received registration information with the processing plan of the process server 26 and performs necessary processing.

The data of the DNC server 18 is backed up by sequentially performing mirroring processing on the backup server 16. The DNC server 18 and the backup server 16 are so-called dual systems. Even if the DNC server 18 fails, the processing can be instantaneously and automatically switched to the backup server 16 and the processing can be shifted. Impact on the system can be minimized.

Further, the backup server 16 stores the DN
Not only the data in the C server 18 but also the data in the process server 26 and the man-hour server 38 are periodically backed up through the route Rb. As described above, since the LAN is of the Ethernet type, a certain server can communicate with all the servers and can make a backup.

The CAM data of the DNC server 18 classifies and manages folders in hierarchical units. Management operations such as new creation of folders, deletion of unnecessary files, and automatic deletion of empty folders are automatically performed. With this function, the DNC server 18 can be operated in a so-called maintenance-free state.

FIG. 2 shows a processing screen 20 of the DNC server 18.
2 is shown. As described above, the processing screen 202 is not normally used because the DNS server 18 is basically maintenance-free, but is used for investigation when a trouble occurs.

In the processing screen 202, the upper registration processing area 6
0, the CAM data (file: refer to the NCSTAT file in FIG. 2) registered from the CAM system 12 can be confirmed.
In this example, deleted CAM data (file) can be confirmed.

Conventionally, the DNC server 18 is divided into one for model processing, one for press die processing, and one for resin die processing. However, according to the embodiment of the present invention, it is easy to collect and manage them in one server. It has a configuration.

A conventional DNS server is an EWS (Engi
Neering Workstation), the embodiment of the present invention employs a general personal computer as described above to achieve downsizing and generalization.

Next, the schedule system 20 will be described.

The schedule system 20 includes a long-term scheduler 22, a short-term scheduler 24, and a process server 26, and manages machining processes in seven layers.

The seven hierarchies are a model hierarchy, a product hierarchy, a molding process hierarchy, a mold hierarchy, a mold parts hierarchy, a work process group hierarchy, and a work process hierarchy in order from the upper hierarchy, and a schedule simulation is performed for each hierarchy. And a function of allocating work to the processing machine 54 described later.

Here, the model hierarchy refers to the model name and general shape information of the automobile to be produced (for example, information on three-door or four-door).

The product hierarchy is type information of a press-formed part such as an outer side panel, a roof, and a bonnet.

The forming process hierarchy includes draw (drawing),
It is type information of a forming process such as trim (trimming) and bend (bending).

The type hierarchy is type information of a type such as an upper type and a lower type.

The mold part hierarchy is part information used for the mold such as a plate and a cam.

The work process group hierarchy is type information of a processing machine.

The work process hierarchy is type information such as machining operations such as tap hole machining and shaving, and stepping operations.

The long-term scheduler 22 will be described.
The long-term scheduler 22 plans long-term machining steps such as six months to two weeks before the start of machining based on the plurality of pieces of external information 53. More specifically, model planning information 44 (based on an instruction from outside the factory) such as a model, a destination, a production quantity related to a mold life design, and a product shipping time, a drawing of a vehicle body, a drawing of a mold, etc. Information 46, material arrival information 48, outsourcing (for production requests to external manufacturers) arrival information 5
Based on 0 and external information 53 such as parts arrival information 52, the amount of work in the factory is simulated.

In the external information 53, information 4 on material arrival such as castings
8, information 50 of external work such as bottom processing of casting, cylinder,
The part arrival information 52 such as cams and plates is information received from the material department. The process manager inputs the information through the long-term scheduler 22 or the process server 26,
It may be incorporated in a LAN system so that it can be automatically input.

FIG. 3 shows a long-term scheduler screen 204 for operating the long-term scheduler 22.

If a similar model already exists when a long-term schedule for a new model is to be set, a standard man-hour database already stored in the long-term scheduler 202 is used at the time of model planning. Apply. Here, the standard man-hour database is a database in which expected man-hours obtained from past results for some standard models are recorded. Even in the case of a new model, a similar model may be selected from the standard man-hour database and applied. Here, the similar model refers to a vehicle having the same type of vehicle such as an ordinary car, a small car, a mini car, and a wagon, or a car having the same general shape as a three-door car or a four-door car.

The operations on the long-term scheduler screen 204 are as follows:
It is only necessary to input the model name and the respective scheduled dates in the standard database column 64 to be applied and the scheduled processing start date / completed date column 66 of the mold. The number of standard databases is 1
There may be one or more.

As a result of the input, a chart area 68 indicating a process period for each model and a work amount integrated bar graph area 70 for all models are displayed.

The work amount integrated bar graph area 70 includes a model hierarchy, a product hierarchy, a molding process hierarchy,
The six layers of the mold layer, the mold parts layer, and the work process group layer can be individually displayed in different colors. From this graph, it is possible to know at what time and in which hierarchy the workload is large.

If the workload exceeds the processing capacity of each hierarchical item, the long-term scheduler screen 204 is displayed.
On the screen of (1), any model can be instantly re-planned such that the model is removed from the item plan or the time is shifted.

With this function, for example, it is possible to re-plan as many times as possible at the place of studying the planning of the production process, so that the long-term schedule can be quickly determined.

When the amount of work exceeds the processing capacity of each layer, the specific work items can be displayed in different colors on the work amount integrated bar graph area 70 and examined.

Then, for example, work items determined to be unprocessable can be excluded from the plan, and external production can be considered.

It is also possible to automatically select work items judged to be unprocessable and to re-plan by deciding to outsource or to shift the time, but these judgments require operational judgment. At present, humans such as process managers make final decisions.

The work process hierarchy at the bottom of the seven hierarchy processes is not included in the analysis items of the long-term scheduler 22. This is because it is not necessary to consider even the terminal hierarchy in the long-term schedule. is there. From the viewpoint of the processing speed of the automatic planning, only the higher hierarchy including the work process group hierarchy is processed. Further, at the stage of the long-term schedule, the drawings necessary for studying the work process hierarchy have not been created, so it is practically difficult.

In FIG. 3, a thick solid line in the work amount integrated bar graph area 70 is a set value (work processing capacity line) 72 of the work processing capacity. The work processing capacity line 72 includes a fixed time line, an overtime line, a holiday attendance line, and the like.
The process manager can freely set a plurality of lines.

The long-term schedule created in this way is stored in the process server 26.

As described above, the long-term scheduler 22
With this function, a long-term process plan can be planned in a short time, and the precision of the plan is also improved. Accordingly, there is also an effect that the number of process managers (process planners) can be reduced.

Next, the function of the short-term scheduler 24 will be described.

The short-term schedule function is based on the process information set by the long-term scheduler 22, and performs short-term (specifically, two weeks to
It has a function to set a schedule for the period up to the processing date). The short-term scheduler 24 differs from the long-term scheduler 22 in that it is necessary to plan a detailed process precisely.
It is possible to plan even the lowest work process hierarchy.

The planning of each hierarchical item is performed automatically. For example, it is possible to automatically set, for example, at what time, which work process group, which processing machine 54 and which machine operator will perform. Further, the conditions of the plan can be freely set in advance by the process manager.

As one of the planning conditions, the skills of each machine operator are quantified and stored as information. Therefore, the processing time is set individually by each machine operator in charge of the processing machine 54 through the machine terminal 30.
A highly accurate schedule can be created.

FIG. 4 shows a Gantt chart screen 206 showing a result of planning based on a short-term schedule of about two weeks. From this Gantt chart screen 206, what kind of work (for example, work for surface machining on the lower mold body) is performed by which machine machine terminal (machine Gr) 30 and which part of the mold by which processing machine (machine name) 54. ) Can be grasped at a glance from what date and time to what date and time. That is, the operation information (including the vacancy status) of the processing machine 54 can be grasped.

The created short-term schedule is stored in the process server 2
6 is stored.

Although the case where the long-term scheduler 22 and the short-term scheduler 24 are applied to the machining process has been described above, the application of the two schedulers 22 and 24 is not limited to this. The same applies to departments. In this case as well, up to seven levels can be divided and applied to each department level within the design department.

Next, the first to fourth functions of the process server 26 will be described.

The first function of the process server 26 is to save process information set by the long-term scheduler 22 and the short-term scheduler 24.

Further, since the information of the work process group can be accessed from a plurality of long-term schedulers 22, short-term schedulers 24, and machine terminals 30 as processing machine terminals, inconsistencies arise if edited individually from each terminal. May occur. To prevent this situation, the work process group is provided with a lock function that disables editing on another terminal when accessed from one place.

Next, as a second function of the process server 26, there is a function of transmitting and receiving CAM data with the DNC server 18.

The process server 26 receives, from the DNC server 18, the registration information other than the processing data body (NC data) among the CAM data created by the design department. The process server 26 confirms from this information that the corresponding CAM data matches the process planned by the short-term scheduler 24. If the CAM data does not exist in the plan, the CAM data is notified to the DNC server 18.

If the registration information cannot be received by the receiving date, a periodic automatic check is executed,
Remove the relevant works from the plan. The means for removing the work from the plan is performed by the short-term scheduler 24.

Next, as a third function of the process server 26, there is a function of assigning work to each machine terminal 30.

The work process instruction set by the short-term scheduler 24 is transmitted to each machine terminal 30 constituting the machine terminal system 28 via the route Rc and updated. Thus, each machine terminal 30 can always obtain the latest process information. In addition, even when there is a cautionary note or the like in starting the work process, it is possible to attach the work process instruction as a special note and give the instruction online.

Conventionally, a work instruction to each processing machine 54 has been issued by sending a sheet of paper to a machine operator. However, by going online, a reliable and quick instruction has been made possible. Paperless use has also been promoted.

Next, as a fourth function of the process server 26, there is a function of collecting operation result information and man-hour information from each machine terminal 30 through the route Rc.

The reason that this function is necessary is that at the actual machining site, machining does not proceed according to the schedule due to various unexpected reasons such as machine failure, drawing trouble, data trouble, external work trouble, and material trouble. Because there is.

Therefore, the process manager can re-plan the addition or deletion of the work process in a timely manner based on the operation result information received by the process server 26 from each machine terminal 30. In addition, the work can be manually assigned on the Gantt chart (see FIG. 4).

The operation result information includes the execution status of unplanned work to which a work instruction has been given temporarily or unexpected work performed by a site worker on his / her own discretion on a holiday or the like. Therefore, the process manager can instantly grasp the state of execution of the sudden work performed when the planner is absent, by simply activating the process server 26 and the short-term scheduler 24.

Further, from the operation result information, not only the operation man-hours of the machine but also the operation time and contents of the machine operator can be confirmed, and both can be managed at the same time.

FIG. 5 shows an example of the operation result information list screen 208.

The operation result information list screen 208 includes a construction number column 74, a model code column 76, a product code column 78, a molding process code column 80, a mold code column 82, and a mold part code column 8.
4, work process group code column 86, work process code column 88, machine code column 90, operator code column 92, operation classification code column 94, start time column 96, end time column 9
8. It consists of an actual time column 100.

The process server 26 transmits the operation result information to
Aggregated by processing machine 54 and machine operator, route Rd
To the man-hour management system 40 through At this time,
The data is converted to a general-purpose format and transmitted so that it can be used by general spreadsheet software.

As described above, the schedule system 2
In the case of 0, the facility operation rate is improved and the number of process planners is reduced. Also, if a sudden trouble occurs,
Flexible and quick rescheduling can be created and responded to.

Next, the machine terminal 30 constituting the machine terminal system 28 will be described.

Conventionally, in order to control each group of processing machines 54, a production management system, an operation management system, and a DNC system are installed around the processing machines 54. Here, a machine terminal 30 is provided for each processing machine 54 instead of these.

FIG. 6 shows the appearance of the machine terminal 30. Since the machine terminal 30 is installed in a factory, the machine terminal 30 is housed in a housing 144 that is dustproof. By making the screen part of the housing 144 a transparent glass window, the monitor screen 146 is made visible. In addition, the keyboard is not adopted because it is weak against dust, and all inputs are made with the mouse 148. The use of a soft keyboard, which will be described later, is also used when a character string needs to be input, and hardware failure and operability can be prevented.

Furthermore, since the computer is housed in the housing 144, the ventilation condition of the computer is deteriorated. Therefore, a cooling system 150 is provided exclusively to prevent thermal runaway of the computer.

With these countermeasures, the machine terminal 3
In addition, the operability is prevented from deteriorating while maintaining the reliability of the hardware.

Next, the first terminal of the machine terminal 30
To the third three functions will be described.

A first function of the machine terminal 30 is a work instruction function.

FIG. 7 shows a machine terminal screen 210 for explaining the work instruction function.

In each machine terminal 30, the route Rc is transmitted from the process server 26 constituting the schedule system 20.
Out of the work instructions sent through the site, select the planned work assigned to the own terminal, the process group that can be processed by the processing machine 54 of the own terminal addressed to another terminal, and the unplanned work that is a temporary work. I can do it. FIG. 8 shows a state where the unplanned construction 101 is selected. The planned work can be selected by clicking the display field of the unplanned work 101 with the mouse pointer.

In the machine terminal screen 210, a column 110 in the work process group display area (work instruction screen) 102 where "machine" is displayed indicates a code of each machine terminal 30 (see the column of the machine name 54 in FIG. 4). ing. FIG. 8 shows an example in which all the work instructions directed to the other machine terminals 30 are also displayed, but normally only the work instructions directed to the own machine terminal 30 are selectively displayed. Then, when a work process group to be performed is selected and clicked from the work process group display area 102, the work process, which is a lower layer work, is displayed in the work process display region 1
04 is displayed.

In the work process display area 104, the name 112 of the actual work process performed in the work process group, the estimated man-hour 1
14, the actual man-hours 116, the data 118, and the progress 120 are provided, and respective information is displayed.

The actual man-hour 116 indicates the man-hour that is monitored and integrated by the machine terminal 30 during actual machining.

The data 118 is a CAM for processing.
It indicates whether data is necessary. In other words, the work process includes all setup and manual work processes that do not require CAM data. If no ◎ symbol is displayed in this column, no CAM data is required. When ◎ is displayed, the corresponding CAM data is read from the DNC server 18 via the route Re at the start of the work.

[0107] Although not shown, if there is a cautionary note in the work process, a special note stating that is sent from the schedule system 20 and can be displayed.

As described above, various troubles may occur at the actual processing site. For example, in the case of a trouble on a holiday, a plan is determined based on the judgment of the machine operator operating the processing machine 54 through the machine terminal 30. In some cases, unexpected work (sudden work) may be performed.

When a sudden construction is performed, only the construction number is entered in the construction number column 122. At this time, a soft keyboard screen 212 (see FIG. 8) is used. By inputting only the construction number, the numbers and names (the mold 130, the mold parts 132, the work process group 134) of the other models 124, the products 126, and the molding process (molding process) 128 are automatically developed. Input mistakes are avoided.

Since the construction number column 122 is written on the mold to be processed, the number may be input as it is.

When the above-mentioned planned works, works to other terminals, unplanned works 101 and unexpected works are selected and executed, the information is transmitted to the short-term scheduler 24 via the process server 26 via the route Rc.
In No. 4, the processing results can always be confirmed.

Next, as a second function of the machine terminal 30, there is a DNC control function.

Referring to FIG. 7, FIG. 9 and FIG.
The NC control function will be described.

The DNC control function means that each machine terminal 30 reads out the CAM data of the DNC server 18,
This is a series of functions that save the data on the local disk of each machine terminal 30, convert the data into data suitable for the type of the processing machine 54, and then transmit the data to the corresponding processing machine 54.

First, the work process display area 104 shown in FIG.
Then, a work process having a symbol ◎ in the column of data 118 is clicked with the mouse 148 to select it. By this selection, the information of the CAM data required in the work process is
Since the data is displayed in the data display area 106, the data is clicked and selected.

Next, in actual machining, the individual operation button 136 or the continuous operation button 138 is clicked. The isolated operation is a case where one piece of CAM data is processed, and the continuous operation is a case where a plurality of pieces of CAM data are continuously executed.

When the button is clicked, a pop-up screen 140 shown in FIG. 9 appears on the machine terminal screen 210 shown in FIG. 7, and the CAM data is read from the DNC server 18 to the machine terminal 30 via the route Re. Further, when the operation of the processing machine 54 is started, the machine terminal 30 converts the read CAM data into data suitable for the processing machine 54, and transfers the converted data to the processing machine 54. In the data conversion, information such as integration of a plurality of data in the case of continuous operation and information for enabling reprocessing from a break position of a tool unit are incorporated.

Normally, the data format of each processing machine 54 differs depending on the manufacturer. On the other hand, C
Since the AM data is predetermined data, it is necessary to convert the AM data into a format suitable for each processing machine 54.

During the transfer, as shown in FIG. 10, the transfer status can be confirmed on the pop-up screen 140 '. 9 and 10, “Hide-” is an area clicked when the pop-up screens 140 and 140 ′ are unnecessary.

In the above description, the CAM data is selected from the work process display area 104 and automatically called, but the DNC server data display area (storage content display screen)
From 108 (see FIG. 7), the machine operator can examine the contents of the DNC server 18 and directly call the CAM data. This function is an essential function in the sudden construction. Note that the DNS server data display area 10
8, “1-3DK-011-I” described in the upper row
-001002-n. n ”etc. are CAMs that are registration information
Indicates the data file name. The desired C
If no AM data is described, the CAM data in the drives (A) to (F) is checked.

That is, the DNS server data display area 1
08 is a general-purpose file management software format, and can be selected from a folder hierarchy.

Next, as a third function of the machine terminal 30, there is an operation management function.

The operation management function will be described with reference to FIGS.

The machine terminal 30 constantly monitors the operation status of the processing machine 54 by acquiring and determining the spindle rotation signal of the processing machine 54. It is not necessary to obtain the rotation signal up to the number of rotations, and only the information of ON / OFF of rotation or stop need be obtained. A general-purpose rotation sensor such as an electromagnetic detector or a resolver may be used as a sensor for detecting rotation.

The operation process includes an operation process (actual operation process),
It is divided into semi-operation processing, non-operation processing and break time processing.

The identification of each operation processing section will be described with reference to FIG.

A fixed short time T1 (for example, about 1 minute)
Spindle rotation stop of less than is ignored (considered as operation) and identified as operation time (actual operation judgment). This is because, depending on the processing method, the spindle may stop for a short time or reverse.

When the spindle is stopped for the time T1 or more, it is identified as semi-operation (semi-operation judgment).

Further, a time T2 which is longer than the time T1, and
If the spindle is stopped, a stop reason input request screen (operation status input screen) 14 is displayed to confirm the stop reason.
2 (see FIG. 12) on the machine terminal screen 210 (FIG. 7).
See) Pop up and display. The machine operator selects and clicks the reason for the stop from the contents described in the buttons on the screen, and notifies the schedule system 20 of the reason for the stop.

Further, with respect to the input request screen 142, there is no input response from the machine operator, and the operation is stopped for a time T.
If the operation has been stopped for a time longer than T3 longer than T2, it is identified as non-operation (FIG. 11: non-operation determination).

If a break time is entered during the quasi-operation process, a break time identification process is performed.

The above time T1, time T2, time T3
Schedule system 2
It can be freely set at 0 and can be operated flexibly. Thus, for example, even when the break time changes, it is possible to respond immediately.

In the semi-operation items on the input request screen 142, the work setup 302 is a semi-operation determination input button representing the installation setup of the workpiece.

The study drawing 304 is an input button for quasi-operation determination indicating examination of a processed drawing.

The tool setup 306 is an input button for quasi-operation determination indicating attachment of a tool.

A data setup 308 is an input button for quasi-operation determination indicating preparation of CAM data and the like.

The work measurement 310 is an input button for quasi-operation determination representing shape measurement of a workpiece.

Among the non-operation items on the input request screen 142, the planned stop 312 is an input button for judging the non-operation indicating the planned operation.

[0139] The machine failure 314 is an input button for non-operation determination indicating that the processing machine 54 has failed.

The warm-up operation 316 is an input button for non-operation determination indicating warm-up of the processing machine 54.

The crane wait 318 is an input button for non-operation determination indicating a crane wait necessary for transporting a workpiece.

In the main operation item, the manned main operation 320 is an input button for the main operation judgment indicating a state in which the machine operator is operating alongside.

The unmanned main operation 322 is an input button for the main operation judgment indicating that the unmanned operation is being performed.

The above-described operation results (actual operation results, semi-operation results, and non-operation results) are transmitted from the machine terminal 30 to the schedule system 20 in real time.

The process server 26 of the schedule system 20 constantly monitors the operation result information received from all the machine terminals 30, and updates the record when a change occurs in the management item.

Next, the man-hour management system 40 will be described with reference to FIG.

The man-hour management system 40 manages man-hours by dividing them into three data. That is, there are a man-hour, a machine operator man-hour, and a man-hour (man-hour).

As described above, the machine man-hours are automatically tabulated since the operating state of the processing machine 54 is constantly monitored by the machine terminal 30.

As described above, the machine operator man-hour is also acquired at the machine terminal 30 together with the machine man-hour. However, the duties of the machine operator are not only the operation of the machine, but also the fact that they are actually meeting. In such a case, since it is not possible to automatically obtain the information at the machine terminal 30, the machine operator can separately input directly from the operator man-hour terminal 34 (see FIG. 1).

The man-made number is the man-hour of a worker other than the machine operator. Since there are not only machine operators but also manual finishing personnel in the factory, it is desirable that these personnel can be integrated and managed in the factory production management.

Therefore, an artificial number terminal 36 is provided exclusively for the input for man-hour management of these personnel, and input is made for each factor.

The first to fourth fours of the man-hour management system 40
Two functions will be described.

As a first function of the man-hour management system 40, there is a batch new file creation function. The batch new file creation function automatically creates a spreadsheet file for inputting new workers by registering them in a separately prepared management list file when adding new workers. It is.

As a second function of the man-hour management system 40, there is a batch macro replacement function. The batch macro replacement function refers to the management list file and automatically determines and updates a required target person when editing management items for man-hour management.

A third function of the man-hour management system 40 is a date / time input check function. The date / time input check function is a function for automatically confirming a missing or erroneous input with respect to input items of the man-hour terminal 36 and the operator man-hour terminal 34, and displaying a list of the results.

As a fourth function of the man-hour management system 40, there is an accounting output conversion function. The accounting output conversion function is a function for converting the totaled man-hours into a spreadsheet file format, which cannot be read by the accounting server 42 as it is, and is converted into a format compatible with the accounting server 42.

The man-hours, machine-operator man-hours, and man-hours are totaled as databases and stored in the man-hour server 38.

Next, the accounting server 42 will be described.

The accounting server 42 is a system of the general affairs and accounting departments, and has no direct relation to the production site for die machining. However, as described above, since the man-hours of the processing machine 54, the machine operator, and the person (skilled worker, etc.) are stored in a database, the data can be used as useful data for the general affairs and accounting departments.

That is, by reading the man-hour data from the man-hour server 38 into the accounting server 42 and processing it,
Processing can be performed more accurately and promptly as compared with the one manually calculated.

FIG. 13 shows a flow from creation of a schedule to actual processing.

First, external information including the model plan information 44 is input to the long-term scheduler 22 (step S1). Then, based on the external information, the long-term scheduler 22 integrates the long-term (first period) work amount to create a long-term schedule (step S2).

Next, the long-term scheduler screen 2 shown in FIG.
04, it is confirmed whether the result is within the processing capacity range for each layer (step S3). If the processing capacity is exceeded, an appropriate work item is removed from the plan, and external production is examined (step S4). If this operation is repeated and processing at all levels becomes possible, a long-term schedule will be determined.

Next, a short-term (second period) schedule is created based on the schedule determined by the long-term scheduler 22 (step S5). In preparing a short-term schedule, as described above, a detailed plan including the lowest level is made. Then, the determined work is transferred to each machine terminal 30.
Is transmitted as a work instruction (step S6).

As described above, according to the above-described embodiment, the schedule system 20 includes the model planning information 44, the drawing information 46, the material receiving information 48, the outside work receiving information 50, and the parts receiving information 52. Based on the external information 53, the machining schedule is divided into a long term (from several months to several weeks before the start of machining) and a short term (from immediately before to several weeks before the start of machining) including the operation process instruction information for manufacturing the die. decide. In the long-term schedule determination process, a plan corresponding to the work processing capacity is set for each layer, and in the short-term schedule determination process, a work allocation plan is set. For this reason, a complicated and diverse schedule in the mold manufacturing process can be easily planned.

In this case, in the long-term schedule determination process, at the time of schedule determination, a process of removing a desired operation from a plurality of hierarchies from the processing schedule or changing a processing start time can be performed. It is possible to easily study the outsourcing.

Further, since the plurality of hierarchies are made up of seven hierarchies of a model, a product, a molding process, a mold, a mold part, a work process group, and a work process, all the hierarchies of the mold manufacturing system 10 are provided. You can plan for it.

Further, in the long-term schedule determination process, the six levels of the model, product, molding process, mold, mold parts, and work process group in the plurality of levels are targeted, so that the determination speed of the long-term schedule creation is determined. And in the short-term scheduling process,
A detailed plan can be made for all of the multiple layers.

Furthermore, in the long-term schedule determination process, the determination is made with reference to the model hierarchy standard man-hour database prepared in advance, so that the input operation can be greatly simplified.

[0170]

As described above, according to the present invention, the process of determining the schedule of the mold manufacturing process can be performed for a long period of time (including at least a period from several months to several weeks before the start of processing). And the second period of the short term (including the period from immediately before the start of processing to several weeks before) can be divided into two periods, so that an effect that a schedule suitable for each purpose can be determined can be achieved. You.

Further, since the management items of the process are divided into a plurality of hierarchies, it is possible to plan for each hierarchy, and in the long-term schedule determination process, the processing speed (schedule determination speed) can be increased by excluding the lowest layer from the processing objects. Can be.

As a result, an effect that a complicated and diverse schedule in the mold manufacturing process can be easily prepared is achieved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a mold manufacturing system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a registration screen of a DNC server.

FIG. 3 is an explanatory diagram of a long-term scheduler screen.

FIG. 4 is an explanatory diagram of a short-term scheduler screen.

FIG. 5 is an explanatory diagram of an obtained operation result information list screen.

FIG. 6 is an external view of a machine terminal.

FIG. 7 is an explanatory diagram of a machine terminal screen.

FIG. 8 is an explanatory diagram of a soft keyboard screen.

FIG. 9 is an explanatory diagram showing a data transfer waiting state on the machine terminal screen.

FIG. 10 is an explanatory diagram showing a state during data transfer on a machine terminal screen.

FIG. 11 is a time-series diagram of operation machine operation operation determination criteria.

FIG. 12 is an explanatory diagram showing an operation input waiting state on the machine terminal screen.

FIG. 13 is a flowchart of the scheduler system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Die manufacturing system 12 ... CAM system 14 ... DNC server system 16 ... Backup server 18 ... DNC server 20 ... Schedule system 22 ... Long term scheduler 24 ... Short term scheduler 26 ... Process server 28 ... Machine terminal system 30 ... Machine terminal 34 ... Operator man-hour terminal 36 ... Artificial number terminal 38 ... Man-hour server 40 ... Man-hour management system 42 ... Accounting server 68 ... Chart area representing process period 70 ... Work amount integration bar graph area 102 ... Work step group display area 104 ... Work step display area 106 ... CAM data display area 108 ... DNC
Server data display area 122 ... Construction number column

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takumi Ogura 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Inside Honda Engineering Co., Ltd. (72) Inventor Hiroshi Karasawa 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Hondae Engineering Co., Ltd. (72) Inventor Hiroyuki Yamada 1-10-1 Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd. (72) Inventor Sadaki Fujiwara 5-21-15 Higashi Gotanda Shinagawa-ku, Tokyo Gotanda Metallion Building Reverse Data System Co., Ltd. (72) Inventor Isao Katai FSK term (reference) 5B049 BB07 CC32 EE02 Inside the ASK Building 7F, 1-24-4 Ebisu, Ebisu, Shibuya-ku, Tokyo

Claims (5)

[Claims] 1. A method for determining a die manufacturing schedule applied to a die manufacturing system for manufacturing a die for producing a vehicle body and parts by using a plurality of processing machines, wherein a management item is determined based on external information. The work is classified into a plurality of hierarchies, and for each of the classified hierarchies, the amount of work in the first period from at least several months to several weeks before the start of processing is integrated, and the amount of work for each of the integrated layers is predetermined. A first period schedule determining step of determining a schedule within the first period from the work processing capacity of each layer; and several weeks after starting the processing of the processing machine after determining the schedule of the first period. A second period schedule determining step of determining a schedule including a combination allocation of the processing machine and the personnel for a second period from before to immediately before the start of processing. Concrete schedule determination method. 2. The mold manufacturing schedule determining method according to claim 1, wherein in the first period schedule determining step, when determining a schedule within the first period, a desired one of the plurality of layers is determined. A method for determining a die manufacturing schedule, comprising a step of removing a work from the processing schedule or changing a processing start time. 3. The method for determining a mold manufacturing schedule according to claim 1, wherein the plurality of hierarchies include a hierarchy of a model, a product, a molding process, a mold, a mold part, a work process group, and a work process. Characteristic mold manufacturing schedule determination method. 4. The method for determining a mold manufacturing schedule according to claim 3, wherein, in the first period schedule determining step, a model, a product, a molding process, a mold, a mold part, and a work process group in the plurality of hierarchies. A method for determining a mold manufacturing schedule, wherein a hierarchy is targeted, and in the second period schedule determining step, all the hierarchies of the plurality of hierarchies are targeted. 5. The method for determining a mold manufacturing schedule according to claim 1, wherein in the step of determining the first period schedule, a model hierarchy standard man-hour database created in advance is referred to. A method for determining a mold manufacturing schedule, wherein the method is determined.