JP4505117B2 - Method and apparatus for managing mold manufacturing CAM data - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mold manufacturing CAM data management method and apparatus for manufacturing a car body and a mold for manufacturing parts by processing them in parallel with a plurality of processing machines.
[0002]
[Prior art]
Conventionally, mold manufacturing plants have introduced computers to automate manufacturing processes and production management processes. Typical examples include a DNC (Direct Numerical Control) system and a process scheduler.
[0003]
The DNC system is a factory support system for supporting the operation of various CAM (Computer Aided Manufacturing) processing machines. Conventionally, the CAM data that has been sent to the control device of the processing machine by a floppy disk, etc. The data is transferred directly to the control device of the processing machine online using a computer. As a result, it is possible to cope with an increase in the capacity of the data itself due to the three-dimensionalization of the CAM data, and it is effective in improving the efficiency of the entire factory.
[0004]
The process scheduler is a Gantt chart (a kind of bar graph used for production planning and management, taking time on the horizontal axis, equipment on the vertical axis, This is a plan that uses people to make it easier to understand the flow of work.)
[0005]
However, the DNC system is mainly managed by the design department, and the scheduler is mainly managed by the production management department, and since each department is operated independently, the mutual information cannot be effectively used.
[0006]
[Problems to be solved by the invention]
By the way, most of the molds manufactured in the mold manufacturing factory are single products as long as the product, 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 increases, and management of drawing sending and processing instructions is confused between each department in the manufacturing department including the design department, the production management department, and the processing machine, and the efficiency is hindered.
[0007]
Furthermore, as an incidental problem, the increase in the CAM data size due to the high-quality processing of products, and accordingly, the processing capacity of the computer system has become insufficient.
[0008]
In addition, as described above, computer systems have been introduced for automation, but since each system is operated independently for each department, the CAM data for the design department and the processing instruction information for the production management department are used. There is a situation where the processing site is confused because it cannot be matched.
[0009]
The present invention has been made in consideration of such problems. The CAM data for mold manufacturing that makes it possible to match the CAM data of the design department and the processing instruction information for the processing machine terminal of the production management department. It is an object to provide a management method and an apparatus therefor.
[0010]
Another object of the present invention is to provide a method and an apparatus for managing mold manufacturing CAM data that can manage CAM data and a plurality of processing machines in a unified manner.
[0011]
[Means for Solving the Problems]
According to the present invention, in a method of managing mold manufacturing CAM data for manufacturing a mold for producing a vehicle body and a part using a plurality of processing machines, CAM data with registration information created in a CAM system is stored in a processing data storage means. A process of delivering the registration information from the machining data storage means to a process server, a process of delivering work process instruction information including the registration information from the process server to a machine tool terminal, and the machine tool terminal wherein corresponding to the registration information capturing the CAM data from the processed data storing means, you; and a step of providing on the basis of die processing instructions to the working process instruction information to the processing machine.
[0012]
According to this invention, since the process server can receive the registration information from the CAM system, the process server can always grasp the CAM data stored in the machining data storage means. The process server distributes the work instruction based on the registration information to the processing machine terminal, so that the processing machine terminal can take in necessary CAM data from the processing data storage unit in a timely manner.
[0013]
If it does in this way, it will become possible to manage the CAM data stored in a plurality of processing machine terminals which control each processing machine, and processing data storage means by a process server.
[0014]
In this case, after the process of distributing the registration information from the processing data storage means to the process server, the process server matches the registration information in the process plan stored in advance in the process server. In the case of a match, a work instruction that does not contradict the plan can be distributed to the processing machine, and in the case of a mismatch, that fact is stored in the processing data storage means. communication with Ru can prevent confusion in advance.
[0015]
Further, in the present invention, the processing data storage means is configured to mirror the CAM data with registration information and store it in the backup server. Therefore, even if the processing data storage means fails, the processing data storage means instantly and automatically to be able to migrate the switching processing to the backup server, Ru can to minimize the impact on the working plan (schedule).
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0017]
FIG. 1 shows a configuration of a mold manufacturing system 10 according to this embodiment.
[0018]
The mold manufacturing system 10 is a mold manufacturing system that manufactures a mold for producing a car body and parts of an automobile with a plurality of processing machines.
[0019]
The mold manufacturing system 10 basically includes a CAM system 12, a DNC server system 14 as processing data storage means, a schedule system 20 as schedule creation management means, and a plurality of machine terminals 30 as processing machine terminals. The system includes a terminal system 28, a man-hour management system 40 as man-hour management means, an accounting server 42, and a LAN (Local Area Network) that connects these to each other via signal lines.
[0020]
In the mold manufacturing system 10, the CAM system 12, the DNC server system 14, the schedule system 20, the machine terminal system 28, the man-hour management system 40, and the accounting server 42, excluding the machine terminal system 28, are each one or more personal computers. It is composed of a computer.
[0021]
Here, as is well known, the personal computer includes a main unit, a display unit (display unit) connected to the main unit, and a data input unit including a mouse, a keyboard, and the like. The main unit includes a CPU as a central processing unit, a ROM in which BIOS and the like are recorded, a hard disk as mass storage means in which system programs and application programs such as an OS are recorded, and work RAM (storage means). A timer as a time measuring means and other input / output interfaces are included.
[0022]
An Ethernet (IEEE802.3) is adopted for a LAN that interconnects the above-described systems and the like. In FIG. 1, each system is schematically represented by a line connecting the arrows according to the data flow. However, the actual signal line (transmission / reception line) does not need to be connected in this way, and is a star type, bus type, ring type Any type of connection may be used. Further, a LAN other than Ethernet may be used, or a wireless LAN using radio waves or the like may be used. Further, the LAN is not provided exclusively for this system, but may be common to other systems.
[0023]
In this embodiment, unless otherwise specified, all data transmission / reception is performed online on this LAN.
[0024]
Hereinafter, each system will be described.
[0025]
The CAM system 12 is a system in which a designer creates CAM data including NC data for mold manufacturing based on CAD data representing a mold shape and the like obtained from an upstream CAD (Computer Aided Design) system. The created CAM data is transmitted to the DNC server 18 through the route Ra. At this time, the CAM data transmitted to the DNC server 18 and stored in the DNC server 18 includes registration information including a model code, a model code, a product code, and a process code in addition to the NC data. .
[0026]
Note that the CAD system and the CAM system 12 can be integrated.
[0027]
When data is registered (stored) from the CAM system 12, the DNC server 18 automatically transfers the registration information to the process server 26 of the schedule system 20 through the route Rb.
[0028]
The process server 26 confirms the consistency of the received registration information with the processing plan of the process server 26 and performs necessary processing.
[0029]
The data of the DNC server 18 is backed up by sequentially mirroring the backup server 16. The DNC server 18 and the backup server 16 are so-called dual systems, and even if the DNC server 18 breaks down, the process can be switched to the backup server 16 instantaneously and automatically, and the processing plan Can be minimized.
[0030]
Further, the backup server 16 regularly backs up not only the data in the DNC server 18 but also the data of the process server 26 and the man-hour server 38 through the path Rb. As described above, since an Ethernet LAN is used, a certain server can communicate with all the servers and can take a backup.
[0031]
The CAM data of the DNC server 18 classifies and manages folders in hierarchical units. Management tasks such as creating new folders, deleting unnecessary files, and automatically deleting empty folders are performed automatically. With this function, the DNC server 18 can be operated in a so-called maintenance-free state.
[0032]
FIG. 2 shows a processing screen 202 of the DNC server 18. As described above, since the DNC server 18 is basically maintenance-free, the processing screen 202 is not normally used, but is used for investigation when a trouble occurs.
[0033]
In the processing screen 202, in the upper registration processing area 60, CAM data registered from the CAM system 12 (file: see NCSTAT file in FIG. 2) can be confirmed. In the lower deletion processing area 62, The deleted CAM data (file) can be confirmed.
[0034]
Conventionally, the DNC server 18 has been divided into model processing, press mold processing, and resin mold processing. However, in the embodiment of the present invention, the DNC server 18 is configured to be integrated into one server for easy management. Yes.
[0035]
Further, the conventional DNC server is constructed on the EWS (Engineering Workstation). However, in the embodiment of the present invention, as described above, a general personal computer is adopted to achieve downsizing and generalization. .
[0036]
Next, the schedule system 20 will be described.
[0037]
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.
[0038]
The seven hierarchies are, in order from the upper hierarchy, model hierarchy, product hierarchy, molding process hierarchy, mold hierarchy, mold part hierarchy, work process group hierarchy, and work process hierarchy. It has a function of assigning work to the processing machine 54.
[0039]
Here, the model hierarchy is the model name of the automobile to be produced and general shape information (for example, information on 3 doors or 4 doors).
[0040]
The product hierarchy is type information of a press-molded part such as an outer side panel, a roof, or a bonnet.
[0041]
The molding process hierarchy is type information of molding processes such as draw (drawing), trim (trimming), and bend (bending).
[0042]
The type hierarchy is type information of types such as an upper type and a lower type.
[0043]
The mold part hierarchy is part information used for a mold such as a plate or a cam.
[0044]
The work process group hierarchy is processing machine type information.
[0045]
The work process hierarchy is type information such as machining work such as tapped hole machining and machining, and stepping work.
[0046]
The long-term scheduler 22 will be described. The long-term scheduler 22 plans a long-term machining process such as 6 months to 2 weeks before the machining start based on the plurality of external information 53. Specifically, model plan information 44 (according to instructions from outside the factory) such as vehicle type, destination, number of production related to mold life design, product shipment time, etc., drawing of car body drawings, mold drawings, etc. Based on external information 53 such as information 46, material arrival information 48, external work (production request to an external manufacturer) arrival information 50, and parts arrival information 52, the amount of work in the factory is simulated.
[0047]
Among the external information 53, material arrival information 48 such as castings, external work arrival information 50 such as casting bottom surface processing, and parts arrival information 52 such as cylinders, cams, and plates are information received from the material department. The information is input by the process manager through the long-term scheduler 22 or the process server 26, but may be incorporated into the LAN system and automatically input.
[0048]
FIG. 3 shows a long-term scheduler screen 204 for operating the long-term scheduler 22.
[0049]
When a long-term schedule for a new model is established, if a similar model already exists, the standard man-hour database already stored in the long-term scheduler 202 is applied during model planning. Here, the standard man-hour database is a record of expected man-hours obtained from past results for several standard models. Even if it is a new model, a similar model can be selected from the standard man-hour database and applied. Here, the similar model refers to a vehicle having the same type of vehicle shape, such as a normal car, a small car, a light car, and a wagon car, or a three-door car, a four-door car, or the like.
[0050]
For the operation on the long-term scheduler screen 204, it is only necessary to input the model name and each scheduled date in the standard database field 64 to be applied and the planned machining start date / completed date field 66 of the mold, respectively. Further, the number of standard databases may be one or plural.
[0051]
As a result of the input, a chart area 68 indicating the process period for each model and a work amount integrated bar graph area 70 for all models are displayed.
[0052]
The work amount integrated bar graph area 70 is displayed separately for each of the six hierarchies of the above seven hierarchies: model hierarchy, product hierarchy, molding process hierarchy, mold hierarchy, mold part hierarchy, and work process group hierarchy. Can do. From this graph, it is possible to know at which time and at which level the work load is large.
[0053]
If the amount of work exceeds the processing capacity of each hierarchical item, on the screen of this long-term scheduler screen 204, replanning work that removes any model from the item plan or shifts the time instantly It can be carried out.
[0054]
With this function, for example, a long-term schedule can be determined quickly because it can be re-planned as many times as possible in the planning process of the production process.
[0055]
Further, when the work amount exceeds the processing capability of each layer, the specific work items can be displayed in different colors on the work amount integration bar graph area 70 for examination.
[0056]
Then, for example, work items determined to be unprocessable can be removed from the plan and considered for external work.
[0057]
Work items that are judged to be unprocessable can be automatically selected and re-planning can be made by deciding on external work or shifting the timing, but these judgments require operational judgment. Humans such as process managers make final decisions.
[0058]
Of the seven hierarchy processes, the lowest-level work process hierarchy is not included in the analysis item of the long-term scheduler 22 because it is not necessary to examine the last hierarchy in the long-term schedule. Also from the processing speed of the automatic plan, the work process group hierarchy is included and only the hierarchy higher than that is processed. In addition, in the long-term schedule stage, the drawings necessary for the examination of the work process hierarchy are not created, which is difficult in practice.
[0059]
In FIG. 3, a thick solid line in the work amount integrated bar graph area 70 is a work processing capacity setting value (work processing capacity line) 72. The work processing capacity line 72 can be freely set by the process manager such as a fixed time line, an overtime line, and a holiday work line.
[0060]
The long-term schedule created in this way is stored in the process server 26.
[0061]
As described above, the function of the long-term scheduler 22 makes it possible to plan a long-term process plan in a short time and improve the preciseness of the plan. As a result, the number of process managers (process planners) can be reduced.
[0062]
Next, the function of the short-term scheduler 24 will be described.
[0063]
The short-term schedule function has a function of setting a short-term schedule (specifically, a period from two weeks to a processing date) for all the layers of the seven layer management based on the process information set by the long-term scheduler 22. . Unlike the long-term scheduler 22, the short-term scheduler 24 needs to plan finely up to a detailed process, so that it is possible to plan up to the lowest work process hierarchy.
[0064]
Planning for each hierarchical item is done automatically. For example, it is possible to automatically set which work process group, which processing machine 54 and which machine operator performs. Further, the process manager can freely set the conditions for the plan in advance.
[0065]
As one of the planning conditions, the skill of each machine operator is also digitized and held as information. Therefore, the processing time is individually set by each machine operator who is in charge of the processing machine 54 through the machine terminal 30, and the accuracy is high. A schedule can be created.
[0066]
FIG. 4 shows a Gantt chart screen 206 showing a plan result based on a short-term schedule of about 2 weeks. From this Gantt chart screen 206, which machine machine terminal (machine Gr) 30 uses which processing machine (machine name) 54 to which part of the mold what work (for example, surface machining to the lower mold body) ) Can be grasped at a glance from what month, what day, what month, what day, and what time. That is, the operation information (including the availability) of the processing machine 54 can be grasped.
[0067]
The created short-term schedule is stored in the process server 26.
[0068]
Although the case where the long-term scheduler 22 and the short-term scheduler 24 are applied to the machining process has been described so far, the usage of the schedulers 22 and 24 is not limited to this, and other departments such as design departments also apply. It can be applied as it is. In this case as well, up to seven hierarchies can be divided and applied to each department hierarchy within the design department.
[0069]
Next, the first to fourth functions of the process server 26 will be described.
[0070]
The first function of the process server 26 is a function for storing process information set by the long-term scheduler 22 and the short-term scheduler 24.
[0071]
Further, since the information on 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, contradiction arises when edited individually from each terminal. there is a possibility. In order to prevent this situation, the work process group has a lock function that disables editing at another terminal when accessed from one place.
[0072]
Next, the second function of the process server 26 is a CAM data transmission / reception function with the DNC server 18.
[0073]
The process server 26 receives the registration information other than the machining data main body (NC data) among the CAM data created by the design department from the DNC server 18. From this information, the process server 26 confirms 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 DNC server 18 is notified.
[0074]
Further, when the registration information cannot be received by the reception date, a periodic automatic check is executed to remove the corresponding construction from the plan. Means for removing the construction from the plan is performed by the short-term scheduler 24.
[0075]
Next, as a third function of the process server 26, there is a work assignment function to each machine terminal 30.
[0076]
The work process instruction set by the short-term scheduler 24 is transmitted to the machine terminals 30 constituting the machine terminal system 28 through the route Rc and updated. Thus, each machine terminal 30 can always obtain the latest process information. In addition, even when there are precautions when starting a work process, it is possible to give an instruction online by attaching it to a work process instruction as a special note.
[0077]
Conventionally, work instructions to the respective processing machines 54 have been performed by sending a paper surface to the machine operator. However, by being on-line, reliable and quick instructions can be given. Paperlessness was also promoted.
[0078]
Next, as the 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.
[0079]
The reason why this function is necessary is that in actual machining sites, machining may not proceed as scheduled due to various unexpected reasons such as machine failure, drawing trouble, data trouble, work trouble, and material trouble. It is.
[0080]
Therefore, the process manager can re-plan the addition and deletion of work processes in a timely manner based on the operation result information received by the process server 26 from each machine terminal 30. In addition, manual assignment of work on the Gantt chart is also possible (see FIG. 4).
[0081]
The operation result information includes an unscheduled construction in which a work instruction is temporarily given and an implementation status of a sudden construction performed on the day of the day by an on-site worker's independent judgment. Therefore, the process manager can instantly grasp the implementation status of the sudden work performed when the planner is absent, by only activating the process server 26 and the short-term scheduler 24.
[0082]
Further, from the operation result information, it is possible to check not only the number of man-hours of operation of the machine but also the operation time and operation contents of the machine operator, and both can be managed simultaneously.
[0083]
FIG. 5 shows an example of the operation result information list screen 208.
[0084]
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, a mold part code column 84, a work process group code column 86, a work process. A code field 88, a machine code field 90, an operator code field 92, an operation classification code field 94, a start time field 96, an end time field 98, and an actual time field 100.
[0085]
The process server 26 totals the operation result information for each processing machine 54 and each machine operator, and transmits the operation result information to the man-hour management system 40 through the route Rd. At this time, it is converted into a general format and transmitted so that it can be used by general spreadsheet software.
[0086]
As described above, the schedule system 20 can improve the equipment operation rate and reduce the number of process planners. Moreover, even if a sudden trouble occurs, it is possible to flexibly and quickly create a reschedule and deal with it.
[0087]
Next, the machine terminal 30 constituting the machine terminal system 28 will be described.
[0088]
Conventionally, in order to control each processing machine 54 group, a production management system, an operation management system, and a DNC system have been installed around the processing machine 54. Here, instead of these, the machine terminal 30 is installed for each processing machine 54.
[0089]
FIG. 6 shows the appearance of the machine terminal 30. Since the machine terminal 30 is installed in the factory, the machine terminal 30 is housed in a housing 144 that is dust-proof. By making the screen portion of the housing 144 a transparent glass window, the monitor screen 146 is made visible. Also, the keyboard is not used because it is sensitive to dust, and all input is performed with the mouse 148. When a character string needs to be input, it can be dealt with by using a soft keyboard, which will be described later, and it is possible to prevent hardware failure and deterioration of operability.
[0090]
Furthermore, since the ventilation condition of the computer is deteriorated by being housed in the housing 144, a dedicated cooling system 150 is provided to prevent thermal runaway of the computer.
[0091]
By these measures, the reliability of the hardware of the machine terminal 30 is maintained and the operability is prevented from being lowered.
[0092]
Next, the first to third functions of the machine terminal 30 will be described.
[0093]
The first function of the machine terminal 30 is a work instruction function.
[0094]
FIG. 7 shows a machine terminal screen 210 for explaining the work instruction function.
[0095]
In each machine terminal 30, among the work instructions transmitted from the process server 26 constituting the schedule system 20 through the route Rc, the planned work that is assigned to the own terminal and the processing machine 54 of the own terminal that is assigned to the other terminals. However, it is possible to select process groups that can be processed and unplanned construction that is temporary construction. FIG. 8 shows a state in which the unplanned construction 101 is selected. The planned construction can be selected by clicking the display column of the unplanned construction 101 with the mouse pointer.
[0096]
In the machine terminal screen 210, a column 110 displaying “machine” in the work process group display area (work instruction screen) 102 indicates the code of each machine terminal 30 (see the column of the machine name 54 in FIG. 4). Although FIG. 8 shows an example in which all work instructions directed to other machine terminals 30 are also displayed, normally, only work instructions addressed to the machine terminal 30 are selected and displayed. When a work process group to be performed is selected and clicked from the work process group display area 102, a work process that is a lower-layer work is displayed in the work process display area 104.
[0097]
The work process display area 104 includes columns for an actual work process name 112, an estimated man-hour 114, an actual man-hour 116, data 118, and a progress 120 performed in the work process group.
[0098]
Of these, the actual man-hour 116 displays man-hours monitored and accumulated by the machine terminal 30 during actual machining.
[0099]
Data 118 indicates whether CAM data is necessary for processing. That is, the work process includes all the setup processes 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 through the route Re at the start of work.
[0100]
Although not shown in the figure, when there is a cautionary note or the like in the work process, a special note stating that fact is also sent from the schedule system 20 and can be displayed.
[0101]
Also, in the actual machining site, various troubles may occur as described above. For example, in the case of a holiday trouble, construction that is not planned according to the judgment of the machine operator who operates the machining machine 54 through the machine terminal 30. (Sudden construction) may be performed.
[0102]
When the sudden construction is performed, only the construction number is entered in the construction number column 122. At this time, the soft keyboard screen 212 (see FIG. 8) is used. By inputting only the construction number, the numbers and names of other models 124, products 126, and molding processes (molding processes) 128 (mold 130, mold part 132, work process group 134) are automatically expanded. Therefore, input mistakes are avoided.
[0103]
Further, since the construction number column 122 is written on the mold to be processed, the number may be input as it is.
[0104]
When the above planned construction, construction for other terminals, unplanned construction 101, and sudden construction are selected and executed, the information is transmitted to the short-term scheduler 24 via the process server 26 via the route Rc. Can be confirmed at any time.
[0105]
Next, as a second function of the machine terminal 30, there is a DNC control function.
[0106]
The DNC control function will be described with reference to FIG. 7, FIG. 9, and FIG.
[0107]
The DNC control function corresponds to each machine terminal 30 after reading out the CAM data of the DNC server 18 and storing it in a local disk of each machine terminal 30 and converting it into data suitable for the type of the processing machine 54. It is a series of functions transmitted to the processing machine 54.
[0108]
First, in the work process display area 104 shown in FIG. 7, a work process having a symbol “◎” in the column of data 118 is selected by clicking with the mouse 148. By this selection, information of CAM data necessary for the work process is displayed in the CAM data display area 106, and the data is clicked to be selected.
[0109]
Next, in actual processing, the independent operation button 136 or the continuous operation button 138 is clicked. The single operation is a case where one CAM data is processed, and the continuous operation is a case where a plurality of CAM data is continuously executed.
[0110]
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 CAM data is read from the DNC server 18 to the machine terminal 30 through 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 reprocessing from the delimiter position of the tool unit is incorporated.
[0111]
Normally, each processing machine 54 has a different data format depending on the manufacturer. On the other hand, since the CAM data is predetermined data, it is necessary to convert it into a format suitable for each processing machine 54.
[0112]
Further, during the transfer, as shown in FIG. 10, the transfer state can be confirmed on the pop-up screen 140 ′. 9 and 10, “Hide-” is an area that is clicked when the pop-up screens 140 and 140 ′ are unnecessary.
[0113]
In the above description, the CAM data is selected from the work process display area 104 and automatically called, but from the DNC server data display area (stored content display screen) 108 (see FIG. 7), the machine operator selects the DNC server 18. CAM data can be directly called up by examining the contents of. This function is an essential function in the sudden construction. In the DNC server data display area 108, “1-3DK-011-I-001002-nn” or the like described in the upper part represents a file name of CAM data that is registration information. If the desired CAM data is not described in the upper stage, the CAM data in the drives (A) to (F) is examined.
[0114]
That is, the DNC server data display area 108 has a general-purpose file management software format, and can be selected from the folder hierarchy.
[0115]
Next, a third function of the machine terminal 30 is an operation management function.
[0116]
The operation management function will be described with reference to FIGS.
[0117]
The machine terminal 30 constantly monitors the operating status of the processing machine 54 by acquiring and determining the spindle rotation signal of the processing machine 54. Acquisition of the rotation signal is not required up to the number of rotations, and it is sufficient to know only on / off information of rotation or stop. As a sensor for detecting rotation, a general-purpose rotation sensor such as an electromagnetic detector or a resolver may be used.
[0118]
Operation processing is divided into operation processing (main operation processing), semi-operation processing, non-operation processing, and break time processing.
[0119]
The identification of each operation processing category will be described with reference to FIG.
[0120]
Spindle rotation stoppage less than a certain short time T1 (for example, about 1 minute) is ignored (considered as operating) and identified as operating time (actual operation determination). This is because the spindle may stop for a short time or reverse in some machining methods.
[0121]
When the spindle is stopped for time T1 or more, it is identified as a semi-operation (quasi-operation determination).
[0122]
Further, when the spindle is stopped for a time T2 longer than the time T1, the stop reason input request screen (operation status input screen) 142 (see FIG. 12) is displayed on the machine terminal screen 210 in order to confirm the stop reason. (Refer to FIG. 7) 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.
[0123]
Further, when the machine does not respond to the input request screen 142 without any input response and is stopped for a time T3 longer than the time T2, it is identified as non-operation (FIG. 11: non-operation determination).
[0124]
In addition, when a break time is entered during the semi-operation process, a break time identification process is performed.
[0125]
The time intervals such as the time T1, the time T2, the time T3, and the break time can be freely set by the schedule system 20, and can be operated flexibly. Thereby, for example, even when the break time changes, it is possible to respond immediately.
[0126]
Of the semi-operation items on the input request screen 142, the work setup 302 is a semi-operation determination input button representing the work setup.
[0127]
A drawing review 304 is a semi-operation determination input button that represents a review of a processed drawing.
[0128]
The tool setup 306 is a semi-operation determination input button indicating tool attachment.
[0129]
The data setup 308 is a semi-operation determination input button indicating preparation of CAM data or the like.
[0130]
The workpiece measurement 310 is a semi-operation determination input button representing the shape measurement of the workpiece.
[0131]
Among the non-operating items on the input request screen 142, the planned stop 312 is an input button for determining non-operation indicating the plan.
[0132]
The machine failure 314 is a non-operation determination input button indicating that the processing machine 54 has failed.
[0133]
The warm-up operation 316 is an input button for determining whether the processing machine 54 is warmed up.
[0134]
The crane wait 318 is an input button for non-operation determination indicating a crane wait necessary for conveying a workpiece.
[0135]
Among the actual operation items, the manned actual operation 320 is an input button for actual operation determination indicating a state in which the machine operator is accompanied by the operation.
[0136]
The unmanned production operation 322 is an input button for actual operation determination indicating that the unmanned operation is being performed.
[0137]
The operation results (actual operation results, semi-operation results, non-operation results) information is transmitted from the machine terminal 30 to the schedule system 20 in real time.
[0138]
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 the management item changes.
[0139]
Next, the man-hour management system 40 will be described with reference to FIG.
[0140]
The man-hour management system 40 manages man-hours by dividing them into three data. That is, the man-hours, machine operator man-hours, and man-hours (referred to as artificial numbers).
[0141]
The machine man-hour is automatically counted because the machine terminal 30 constantly monitors the operating state of the processing machine 54 as described above.
[0142]
The machine operator man-hour is also acquired together with the machine man-hour at the machine terminal 30 as described above. However, the work of the machine operator is not only the operation of the machine, but actually has a meeting. In such a case, since automatic acquisition cannot be performed at the machine terminal 30, a machine operator can separately input directly from the operator man-hour terminal 34 (see FIG. 1).
[0143]
The artificial number is the man-hours of workers 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 also be integrated and managed in the production management of the factory.
[0144]
Therefore, an artificial number terminal 36 is installed exclusively for input for man-hour management of these personnel, and is input to each factor.
[0145]
The first to fourth functions of the man-hour management system 40 will be described.
[0146]
The first function of the man-hour management system 40 includes a batch new file creation function. The batch new file creation function automatically creates a spreadsheet file for new worker input by registering with a management list file prepared separately when registering new workers. It is.
[0147]
As a second function of the man-hour management system 40, there is a collective macro replace function. The batch macro replacement function is a function for automatically determining and updating a necessary target person by referring to the management list file when editing management items for man-hour management.
[0148]
A third function of the man-hour management system 40 is a date input check function. The date / time input check function is a function for automatically confirming uninput or incorrect input for the input items of the artificial number terminal 36 and the operator man-hour terminal 34 and displaying a list of the results.
[0149]
As the fourth function of the man-hour management system 40, there is an accounting output conversion function. The accounting output conversion function is a function that performs conversion processing into a format suitable for the accounting server 42 since each accounting man-hour is in a spreadsheet file format but cannot be read by the accounting server 42 as it is.
[0150]
The machine man-hour, the machine operator man-hour, and the artificial man-hour are totaled as a database and stored in the man-hour server 38.
[0151]
Next, the accounting server 42 will be described.
[0152]
The accounting server 42 is a system in the general affairs and accounting departments, and is not directly related to the production site for mold processing. However, since the man-hours of the processing machine 54, the machine operator, and the person (skilled worker, etc.) are made into a database as described above, it can be used as useful data for the general affairs and accounting departments.
[0153]
That is, by reading the man-hour data from the man-hour server 38 into the accounting server 42 and processing it, it becomes possible to perform the processing more accurately and more quickly than what has conventionally been tabulated manually.
[0154]
FIG. 13 shows a flow from CAM data creation to actual processing in the method for managing mold manufacturing CAM data according to the present embodiment.
[0155]
First, CAM data with registration information is created by the CAM system 12 (step S1).
[0156]
Then, the CAM data with registration information is transmitted to the DNC server 18 and stored (step S2).
[0157]
In the received CAM data with registration information, the DNC server 18 transmits only the registration information to the process server 26 to notify that the data is ready (step S3).
[0158]
The process server 26 checks whether or not the registration information is consistent with the machining plan (registration information in the process plan stored in advance in the short-term schedule) (step S4). In S4, NO), the fact is notified to the DNC server 18 (step S8).
[0159]
If the registered information is consistent with the machining plan (YES in step S4), the process proceeds to the next step S5, and a machining instruction based on the registered information is distributed to the corresponding machine terminal 30.
[0160]
In the actual processing, the machine terminal 30 receives CAM data corresponding to the registration information from the DNC server 18 (step S6), and starts processing after converting the format of the CMA data into a format suitable for the processing machine 54. (Step S7).
[0161]
As described above, according to the above-described embodiment, the process server 26 can receive registration information from the CAM system 12 via the DNC server 18 as processing data storage means, so that it is always stored in the DNC server 18. The contents of the CAM data being processed can be grasped. The process server 26 can distribute a work instruction based on the registered information to the machine terminal 30 which is a processing machine terminal. The machine terminal 30 receives CAM data corresponding to the work instruction from the DNC server 18 in a timely manner. Can be captured. In this way, the process server 26 can smoothly and smoothly manage the CAM data of the design department and the plurality of processing machines 54 that perform processing using the CAM data.
[0162]
In this case, after the process of distributing the registration information from the DNC server 18 to the process server 26, it is determined whether or not the distributed registration information matches the registration information in the process plan stored in advance in the process server 26. To do. If they match, a work instruction that does not contradict the plan can be delivered to the machine terminal 30, and if they do not match, the DNC server 18 can be notified to that effect to prevent confusion.
[0163]
Further, since the DNC server 18 is configured to mirror the CAM data with registration information and store it in the backup server 16, even if the DNC server 18 breaks down, the backup server 16 is instantly and automatically. The process can be switched to, and the impact on the machining plan is minimized, improving reliability.
[0164]
【The invention's effect】
As described above, according to the present invention, when the machining data storage means receives CAM data from the CAM system, the registration information is distributed to the process server. For this reason, the process server can always grasp the CAM data stored in the machining data storage means, and can distribute consistent work instructions to the machining machine terminal.
[0165]
Further, since the machining data storage means can back up the CAM data by the backup server, the influence on the schedule can be suppressed to a minimum even when the machining data storage means fails. Improves.
[0166]
In this way, it becomes possible to match the CAM data of the design department and the processing instruction information for the processing machine terminal of the production management department, and thereby, the CAM data and a plurality of processing machines can be managed in an integrated manner. .
[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 data transfer state on the machine terminal screen.
FIG. 11 is a time-series diagram of criteria for judging operation of a processing machine.
FIG. 12 is an explanatory diagram showing an operation input waiting state of a machine terminal screen.
FIG. 13 is a flowchart of a method for managing mold manufacturing CAM data.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Mold 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 man-hour terminal 38 ... Man-hour server 40 ... Man-hour management system 42 ... Accounting server 68 ... Chart area 70 representing process period 70 ... Work amount integrated bar graph area 102 ... Work process group display area 104 ... Work process display area 106 ... CAM data display area 108 ... DNC server data display area 122 ... Construction number field

Claims (2)

In a method for managing mold manufacturing CAM data for manufacturing a mold for producing a car body and parts by a plurality of processing machines,
A process of storing CAM data with registration information, which is created by the CAM system and includes a mold type code, a body type code, a product code of a part , and a process code, in a machining data storage unit;
Delivering the registration information from the processed data storage means to a process server;
A process of delivering work process instruction information including the registration information from the process server to a processing machine terminal;
The process machine terminal fetching the CAM data corresponding to the registration information from the process data storage means, and giving a process instruction of a mold to the process machine based on the work process instruction information,
After the process of distributing the registration information from the processing data storage means to the process server, the process server confirms that the distributed registration information matches the registration information in the process plan stored in advance in the process server. In the mold manufacturing, the process includes a process of delivering the work process instruction information if it matches, and a process of notifying the processing data storage means in the case of a mismatch CAM data management method. In a CAM data management device for mold production for producing a mold for producing a car body and parts with a plurality of processing machines,
Machining data storage means for storing CAM data with registration information made up of a mold type code, a body type code, a part product code, and a process code created by the CAM system;
A process server to which the registration information is distributed from the processed data storage means;
Work process instruction information including the registration information is distributed from the process server, the CAM data corresponding to the registration information is fetched from the machining data storage means, and a mold machining instruction is based on the work process instruction information A processing machine terminal for providing the processing machine with
After delivering the registration information from the processing data storage means to the process server, the process server determines whether the delivered registration information matches the registration information in the process plan stored in advance in the process server. Determine and distribute the work process instruction information if they match, and notify the processing data storage means to the effect if they do not match,
The processing data storage means mirrors the CAM data with registration information and stores it in a backup server.

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