JP5011754B2 - Automatic setting method and automatic setting device for mold manufacturing process - Google Patents

Description

  The present invention relates to an automatic setting method and automatic setting apparatus for a mold manufacturing process for automatically setting a manufacturing process and work contents in a mold manufacturing process for a plurality of parts.

  In the case of performing die processing of automobile stamped parts, for example, a data creation department is performing production process setting work (hereinafter referred to as “construction work”).

  The mold production process includes production procedures such as casting, set-up, machining, disassembly, assembly, and unloading (also simply referred to as “routing”). The work contents, cost (work man-hours) estimation, component parts flow, parts assembly instructions (parts assembly, distribution instruction diagram), etc. are performed.

In recent years, there has been a high demand for automation of construction work. For example, Patent Document 1 discloses a technique for improving efficiency and automation when setting a processing order when processing a certain part.
Japanese Patent Laid-Open No. 2005-81531

  The setting of the processing order in Patent Document 1 is intended for one part, and it is not possible to set the work order when assembling a plurality of parts. Furthermore, it is difficult to respond quickly to improvement of the construction method, and the number of work steps increases.

  In addition, the construction work must be instructed after grasping the entire production process. Therefore, it is necessary to collect CAD data, part forms, and the like in part design, and set the routing according to the part conditions while comparing the collected information. Therefore, the construction work must depend on the skill of the operator, and as a result, the created construction work tends to vary.

  In addition, since assembly and disassembly work in the mold manufacturing process are manual operations by workers, for example, CAD images with parts attached or disassembled are printed and instructed on paper. Therefore, it is easy to take man-hours for creating instruction diagrams and to make mistakes that do not match the production intention.

  The present invention has been devised in view of the above-described circumstances, and it is possible to set a work order for a plurality of parts, and it is easy to quickly respond to improvement of the construction method, etc. CAD data and parts forms It is an object of the present invention to provide an automatic setting method and automatic setting device for a mold manufacturing process, which can reduce the matching operation with the mold and can automate the setting of the mold manufacturing process.

In order to achieve the above object, an automatic setting method of a mold manufacturing process according to the present invention is an automatic setting method of a mold manufacturing process for setting a manufacturing procedure and work contents in a mold manufacturing process. A standard routing table in which each standard routing required for production is tabulated, a condition determination formula for determining whether each standard routing is generated, and a function for determining interference between components are provided. A condition determination table is created, factors that are work factors are extracted from CAD information and part information including at least a mold shape, and work contents are read from the reference route read from the reference route table and the extracted factors. Generate a standard routing from the determined work content, determine whether the standard routing is generated using the condition judgment formula in the condition judgment table, and arrange the generated standard routing Set, further characterized by setting the factory order of installation and removal of parts using the function for determining the interference between the parts of the condition judgment table.

In addition, an automatic setting device for a mold manufacturing process according to the present invention for achieving the above object includes at least a storage device and an arithmetic processing unit, and mold manufacturing for setting a manufacturing procedure and work contents in the mold manufacturing process. In the process automatic setting device, the storage device determines a reference route table in which each reference route required for manufacturing each part is tabulated, and whether each reference route is generated. And a condition determination table having a function for determining interference between components, and at least CAD information and component information, and the arithmetic unit reads a reference routing read from the reference routing table and to confirm the work and a factor extracted from CAD information and the component information including die shape, it generates a reference Engineering order from finalized work, condition of the condition judgment table Determine whether or not the standard route is generated using the cutting formula, set the production route by arranging the generated standard routes, and use a function for determining interference between components in the condition determination table. It is characterized by setting the order of installation and removal of parts.

According to the automatic setting method and apparatus for the mold manufacturing process according to the present invention configured as described above, the setting of the manufacturing process and the setting of the parts attaching and detaching processes can be automated.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing an automatic setting device for a mold manufacturing process according to an embodiment of the present invention. FIG. 2 is a block diagram showing a table structure stored in the storage device.

  As shown in FIG. 1, an automatic setting apparatus 1 for a mold manufacturing process according to the present invention is an apparatus for automatically setting a manufacturing process and work contents in a mold manufacturing process, such as a personal computer or a workstation. Consists of a computer. The automatic setting device 1 is connected to a processing device (not shown) such as a numerically controlled machine tool via a network, for example, and transmits numerical control data such as a processing path to the processing device to obtain a component. It also functions as a device that outputs a machining instruction.

  The main body 2 of the automatic setting device 1 includes an arithmetic processing unit (CPU), a storage device such as a ROM 4, a RAM 5, a hard disk (HDD) 6, an input interface (I / F) 7 and an output interface (I / F) 8. Is provided.

  As shown in FIGS. 1 and 2, software including a plurality of modules is recorded in the ROM 4, and automatic setting processing of a mold manufacturing process is performed based on this software. Further, the ROM 4 is provided with a reference routing table 14 in which each reference routing required for the production of each part is tabulated. The reference routing table 14 includes a condition judgment formula for determining whether or not each reference routing is generated. Are included in a function determination table 15 and a work content creation table 16 in which work content information is tabulated. The RAM 5 records and deletes various information such as during processing. Various information data including at least CAD data 11, mold information data (part information) 12 and work standard table data 13 is recorded in the HDD 6 (see FIG. 3).

  Input means such as a keyboard and a mouse (not shown) are connected to the input I / F 7. In addition, an external function 17 as a determination function can be input to the input I / F 7 separately from the main module of the software. By incorporating the external function 17, it is determined whether or not a work order has occurred in the condition determination table 15. A conditional judgment formula is described. Furthermore, an external table 18 describing work content can be input to the input I / F 7, and the incorporated external table 18 is associated with the work content creation table 16.

  The output I / F 8 is connected to an image display device 9 such as a CRT or a liquid crystal display device, or a printing device (not shown).

  In this embodiment, the software including a plurality of modules, the standard routing table 14, the condition determination table 15, and the work content creation table 16 are stored in the ROM 4, but all of these may be recorded and saved in the HDD 6. Good.

Based on the software recorded in the ROM 4, the CPU 3 uses the mold shape CAD data 11, the mold information data (part information) 12, the work reference table data 13, and the like recorded in the HDD 6. Extract factors that will be a factor of work. Further, the standard routing is read from the standard routing table 14, and the standard routing is generated from the standard routing and the extracted factor . Then, in the portion where the determination of each reference route is divided (route generation determination unit), the presence or absence of the route is determined by the condition determination formula in the condition determination table 15, and the manufacturing route is automatically set. Further, based on the work order set by the condition determination table 15, the CPU 3 creates work contents, work man-hours and the like in each work order by the work content creation table 16.

  Next, an automatic setting method of the mold manufacturing process according to the present invention performed using the automatic setting device 1 will be described. FIG. 3 is a block diagram showing a processing configuration of an automatic setting method of a mold manufacturing process according to an embodiment of the present invention. FIG. 4 is an explanatory diagram showing an example of the reference route set by the reference route table. FIG. 5 is an explanatory diagram illustrating an example of a condition determination table that acts on the route generation determination unit of the route being a reference. FIG. 6 is an explanatory view showing a state in which the route is automatically created. FIG. 7 is an explanatory diagram showing work content creation processing using an external function and work content creation table.

  As shown in FIG. 3, when the automatic creation of the routing is started, at least data of various information such as the CAD data 11, the mold information data 12 and the work reference table data 13 is read by a keyword (Step 1 (hereinafter, “ It is expressed as “ST1”.)). The CAD data 11 is data including a mold shape and attributes. The mold information data 12 is, for example, data including information on the part itself such as a use place and a processing place of each part. The work standard table data 13 is data of a standard table such as a work time required for one drilling process.

  Next, a factor that is a work factor is extracted from the read CAD information, part information, and the like (ST2). For example, factors that become work factors such as the number of surface machining of parts and the number of drilling parts are classified and extracted.

Then, read the preset reference Engineering order of each reference Engineering sequence table 14 or al section parts (ST3). The reference routing table 14 is a table of the manufacturing routing that is a reference necessary for manufacturing each part. That is, in ST3, the work content generated from the factor extracted from the actual part in ST2 and the reference route is determined, and for example, a reference route is generated as shown in FIG.

  Next, the condition determination table 15 and the work content creation table 16 are read, and the production route is automatically created (ST4). An external function 17 is incorporated in the condition determination table 15. As shown in FIG. 4, the condition determination table 15 operates in a portion (a route generation determination unit) 20 where determination of each set reference route is divided. As shown in FIG. 5, the condition determination table 15 includes a condition determination formula 30 corresponding to each work order occurrence determination unit 20.

  That is, as shown in FIGS. 4 and 5, the condition determination table 15 is created for each reference route and a condition determination formula 30 for determining whether or not each route occurs is described. In each determination condition expression 30, a function is set according to variables such as the number of machining elements, part names, and part weights, and the condition is determined from the result of the function. Functions that handle information on each part from the CAD information and part information read in ST2 are prepared in advance as an external function 17 (see FIG. 3). For example, the number of attached parts can be determined or processed. Returns the number of required holes, machining area, etc. as return value variables.

  For example, in the work order occurrence determination unit 20a in FIG. 4, when it is desired to divide the work order depending on whether or not the part material is a casting, the condition determination formula using the part material variable as a necessary variable is used. To express.

  For example, the external function 17 describes a condition judgment expression using IF: IF (K1 = “FC”, 1, 0). In K1, information (material) of the part called by the function is returned as a return value, and when the return value indicates the material FC, a route for using the FC is generated as indicated by a thick line in FIG. become.

  In this way, the order of the work order is determined by the condition determination table 15, and the work content creation table 16 is further configured based on the determined work order, for example, work content or work man-hours that require surface machining or drilling. Create The determination to confirm the work content is similarly performed using the incorporated external function 17. If such a function is prepared, even when setting the detailed work content in the work order automatically created in ST4, the work content corresponding to each work order is tabulated and generated using the function. Work contents can be created.

  That is, as shown in FIGS. 3 and 7, the detailed work contents in each work order can be automatically determined using the external table 18 and the external function 17 in the same manner as the determination of the occurrence of the work order. Is possible. Specifically, in FIG. 7, by preparing the external table 18 describing the work information of the work content as shown in (b) corresponding to the work order of (a), it is added to the work content and judgment by the construction method change etc. Even when there is a change, the external table 18 can be easily added or changed. For example, in the work content creation table 16 in FIG. 7C, the external function 17 for extracting the number of taps (TAP) of the target part called GetKakouCount is called, and the conditional expression: IF (K1> 0, 1, 0) is described. If K1> 0, the work is generated, and if K1 ≦ 0, the work is deleted.

  A function is used to determine the information read in this way, and this determination function is externally provided as an external function 17 separately from the main body module. Further, by providing work information data as an external table 18, the software It becomes easy to cope with the improvement of the routing without changing the main module.

  The above-described condition determination table 15 can also represent a condition such that it is more efficient to perform co-processing by assembling another part to a certain part. At that time, it is also possible to predict the interference state between parts, and it is also possible to automatically determine the presence or absence of installation and removal work when assembling several parts and requiring integrated processing (co-processing) Become.

  A route determination method based on interference (attachment and removal) will be described with reference to FIGS. FIG. 8 is a schematic diagram used for determining attachment parts. FIG. 9 is a schematic diagram showing a state in which the tool holder interferes with the child component B. FIG. FIG. 10 is an explanatory diagram showing an interference matrix and an attachment order determination matrix. FIG. 11 is an explanatory diagram showing an example of a created integrated processing sequence.

  When there is an integrated process with a child part attached to the parent part, there are cases where all parts cannot be attached and processed, so it is necessary to generate an attachment and removal procedure. The complicated determination of the interference between components is also converted into a function and is used as one element of the condition determination table 15 described above, so that it is possible to automatically set the occurrence of the installation and removal processes.

  As shown in FIG. 8, since no parts are attached at the start of production, it is first determined which parts are to be attached. The search is performed in order from the lowest Z value representing the degree of difficulty in avoiding interference in a state where the child part A, the child part B, the child part C, and the child part D that are integrally processed with the parent part 40 are attached. For example, in FIG. 9, when the side surface of the child component A is integrally processed (profile processing), the tool holder 41 may interfere with the child component B as shown in FIG. Since the tool holder 41 does not interfere with the child component A when machining, it can be said that the child component A having a low Z value has a high degree of difficulty in avoiding interference.

  In the example of FIGS. 8 and 9, the search is performed in the order of the child parts A, the child parts B, the child parts C, and the child parts D having the low interference avoidance difficulty (Z value). In FIG. 9, when the child part A and the parent part 40 are integrally processed as shown in FIG. 9A, the child part B interferes. When this is searched in the order of the child part A, the child part B, the child part C, and the child part D to see the interference, an interference matrix 50 as shown in (b) can be created.

  As shown in FIG. 10, a method of determining the processing order for performing the integrated processing based on the interference matrix 50 in FIG. A mounting order determination matrix 60 in which the order of integrated machining is arranged in the row direction and the mounting parts are arranged in the column direction is prepared, and 1 is set as a default as shown in FIG. Then, the interference matrix 50 of FIG. 10A is read, and the slave component B interferes when the slave component A is integrally processed. Therefore, 1 is added to the value of B in the mounting order determination matrix 60 as shown in (c). Flag 2. Therefore, the child component B is not attached in the route of the integrated processing 1 but is a candidate to be attached in the route of the next integrated processing. Similarly, when looking at the interference between the child parts, the child part D also becomes the flag 2 as shown in FIG. 10D, and the parts that can be integrally processed are the child part A and the child part C. As a result, as shown in FIG. 11, a work sequence in which the child part A and the child part C are attached to the parent part 40 and the integrated machining 1 is performed is created. When performing the integrated processing 2 of the child component B and the child component D, the child component A and the child component C interfere with each other.

  Next, a process flow determination flow based on interference (attachment and removal) will be described with reference to FIGS. FIG. 12 is a flowchart for creating an interference matrix. FIG. 13 is a flowchart for determining the order of integrated machining. FIG. 14 is a flowchart for determining the removal procedure.

  Referring to FIG. 12, when the routing determination process for interference (attachment and removal) is started, a matching part to be attached to parent part 40 is searched (ST11). Next, a proline match search, a finish symbol attribute match search, etc. are performed to search for the presence or absence of integral machining (ST12).

  Then, as shown in FIG. 8 described above, the search is performed in order from the component having the lowest Z value indicating the degree of difficulty in avoiding interference in a state where the attachment component (child component) is attached (ST13). Further, after sorting the order of interference calculation (ST14), interference calculation (for: i = 1... I) is performed (ST15).

  Next, it is determined whether there is an interfering part (ST16). In ST16, if there is an interfering part, a flag is set in the interference matrix 50 (ST17), and if there is no interfering part, an x flag is set in the interference matrix 50 (ST18). Such an operation is repeated for the number of parts (ST19) to complete the interference matrix 50.

  As shown in FIG. 13, next, the order of integral processing is determined (ST20). In the step of determining the order of integral processing, first, as shown in FIG. 10B, a default value 1 is set to a variable n for each part of the mounting order matrix 60 (ST21).

  Next, the interference matrix 50 of FIG. 13B is called (ST22), and it is determined whether there is a x flag (ST23). In ST23, if there is no x flag, the process proceeds to ST26. On the other hand, if there is a x flag in ST23, 1 is added to the variable of the part (ST24), and after passing through the processing order counter: j [i] = j + 1 (ST25), the process proceeds to ST26.

  In ST26, it is determined whether or not there is a component of i <n + 1. If there is no component of i <n + 1 in ST26, this is repeated by the number of components (ST28). On the other hand, if there is a component of i <n + 1 in ST26, skip to the next component (ST27) and repeat for the number of components (ST28).

  Then, in the attachment in each processing order, the operations from ST22 to ST28 are repeated (ST29).

  As shown in FIG. 14, the removal order is then determined (ST30). In the step of determining the removal order, first, the last line is copied to the second line of the attachment order determination matrix 60 (ST31). This is because, as shown in FIG. 14 (b), nothing is attached in the first integrated processing 1, and therefore no removal work occurs.

  Next, in ST32, it is determined whether or not there is a component of i <n + 1. If there is a component of i <n + 1 in ST32, an interference matrix 50 as shown in FIG. 14C is called (ST33). On the other hand, if there is no i <n + 1 component in ST32, skip to the next component (ST34).

  After calling the interference matrix 50 in ST33, it is determined whether or not there is a x flag (ST35). In ST35, if there is a x flag, a 0 flag is set in the variable of that part (ST36). If there is no x flag, the process proceeds to the next part and repeats for the number of parts (ST37). .

  Then, the above-mentioned ST32 to ST37 are repeated in the attachment in every processing order from the second row (ST38).

  In this way, the manufacturing route can be automatically created by combining the function of the items that are originally judged by a person, such as interference between components and the presence or absence of the component, and the condition determination table 15 for creating the route. Further, by using the external function 17 set separately from the software main module, it is possible to change the route creation rule without changing the system configuration.

  Again, as shown in FIG. 3, when the route is automatically created in ST4, a component thumbnail is created as image information (ST5). Furthermore, since it is image information, it is possible to create display data for each work order (ST6).

  FIG. 15 is an explanatory diagram showing an example of a component thumbnail. In the component thumbnail 70 shown in FIG. 15, the state of the assembly / spreading route can be created as viewer data from the automatically created component attachment state (network) in each route. Therefore, in the production department, it is possible to confirm the routing on the CAD screen.

  In the example of FIG. 15, CAD data is automatically taken from the part mounting FROM and TO data, and by selecting one image of the part thumbnail 70, a 3D, table, and edit screen can be displayed. ing. In this example, by selecting “image” of the component 12-K3 of the component thumbnail 70, “image” is enlarged and displayed as a 3D image, and the work contents of the corresponding component are displayed as a table.

  Next, a process for creating the component thumbnail 70 will be described with reference to FIG. FIG. 16 is a flowchart for creating a component thumbnail. In this part thumbnail creation process, first, the number of creation steps is read (ST40). Next, CAD information for the routing is created (CAD data for the previous routing is copied) (ST41), and it is determined whether there is a part to be removed in the current routing (ST42).

  If there are no parts to be removed in ST42, the process proceeds to ST44. On the other hand, if there is a part to be removed in ST42, the CAD data of the part to be removed is deleted (ST43). This operation loops by the number of parts to be removed.

  In ST44, it is determined whether or not there is a part to be attached in the current work order. In ST44, if there is no part to be attached in the current work order, the process proceeds to ST46. On the other hand, if there is a part to be attached in the current work order in ST44, the CAD data of the attached part is read and arranged (ST45). This operation loops by the number of parts to be removed.

  In ST46, the part information and CAD information are associated with each work order, display data is created for each work order, and stored as information of the component thumbnail 70 as shown in FIG.

  The above operation loops as many as the number of components, and loops as many as the number of work steps.

  As described above, according to the automatic setting apparatus and automatic setting method of the mold manufacturing process of the present embodiment, a function is used to determine the read information, and this determination function is used as the external function 17 and the software main module. By providing them separately to the outside and providing the work information data as the external table 18, it becomes easy to cope with the improvement of the routing without changing the main module of the software. Furthermore, according to the automatic setting apparatus and automatic setting method of the mold manufacturing process of the present embodiment, it is possible to set the routing for a plurality of parts, and CAD data and parts forms that depend on the skill level of the worker. This makes it possible to automate the setting of the mold manufacturing process.

It is a block diagram which shows the automatic setting apparatus of the metal mold | die manufacturing process which concerns on one Embodiment of this invention. It is a block diagram which shows the table structure memorize | stored in the memory | storage device. It is a block diagram which shows the process structure of the automatic setting method of the metal mold | die manufacturing process which concerns on one Embodiment of this invention. It is explanatory drawing which shows an example of the reference | standard routing set by the reference | standard routing table. It is explanatory drawing which shows an example of the condition judgment table which acts on the routing generation determination part of the routing which becomes a reference | standard. It is explanatory drawing which shows a mode that the routing was created automatically. It is explanatory drawing which shows the creation process of the work content by an external function and a work content creation table. It is a schematic diagram used for judgment of attachment components. It is a schematic diagram which shows the state which the tool holder interfered with the subcomponent B. It is explanatory drawing which shows an interference matrix and an attachment order determination matrix. It is explanatory drawing which shows an example of the created process order of the integrated processing. It is a creation flowchart of an interference matrix. It is a decision flowchart of the process order of integral processing. It is a decision flowchart of the removal procedure. It is explanatory drawing which shows an example of a component thumbnail. It is a creation flowchart of a component thumbnail.

Explanation of symbols

1 Automatic setting device for mold manufacturing process,
2 device body,
3 arithmetic processing unit (CPU),
4 ROM,
5 RAM,
6 Hard disk,
7 Input interface,
8 output interface,
9 Image display device,
11 CAD data,
12 Mold information data,
13 Work standard table data,
14 Standard routing table,
15 Condition judgment table,
16 Work content creation table,
17 External functions,
18 External table,
19 Display data by routing,
20 (20a) The route occurrence determination unit,
30 Condition judgment formula,
40 Parent parts,
50 interference matrix,
60 Mounting order determination matrix,
70 Parts thumbnail.

Claims (8)

An automatic setting method of the mold manufacturing process for setting the manufacturing process and work contents in the mold manufacturing process,
A standard routing table in which each standard routing required for manufacturing each part is tabulated, a condition judgment formula for determining whether each standard routing is generated, and a function for determining interference between components And a condition judgment table with
Extract factors that are work factors from CAD information and parts information including at least the mold shape ,
The work content is determined from the standard work route read from the reference work route table and the extracted factor, and the standard work route is generated from the confirmed work content,
The presence / absence of a reference route is determined using the condition determination formula in the condition determination table, a production route is set by arranging the generated reference routes, and further, interference between components in the condition determination table is determined. A method for automatically setting a mold manufacturing process, wherein a function for mounting and removing parts is set using a function for the purpose. Create a work content creation table that tabulates at least the work content information required to create work content.
2. The gold according to claim 1, wherein at least a work content in each reference work order is created using the work content information in the work content creation table based on the production work order set by the condition determination table. Automatic setting method of mold manufacturing process.   Creating an attachment order determination matrix for determining a processing order for performing integrated processing based on an interference matrix that displays an interference state for each component, and setting an integrated processing order based on the attachment order determination matrix The automatic setting method of the mold manufacturing process according to claim 1.   The method for automatically setting a mold manufacturing process according to any one of claims 1 to 3, wherein an external function is incorporated in the condition determination table separately from a main module of software.   The method for automatically setting a mold manufacturing process according to any one of claims 1 to 4, wherein a part thumbnail is created after the manufacturing process is set. At least a storage device and an arithmetic processing unit, and an automatic setting device for a mold manufacturing process for setting a manufacturing process and work contents in a mold manufacturing process,
In the storage device, a standard routing table in which each standard routing required for manufacturing each component is tabulated, a condition determination formula for determining whether each standard routing is generated, and interference between components Including a condition determination table having a function for determining, and CAD information and component information including at least a mold shape ,
The arithmetic device determines the work content from the reference route read from the reference route table and the factors extracted from the CAD information and the part information, generates a reference route from the determined work content, and determines the condition A function for judging whether or not the standard route is generated using the condition judgment formula of the table, setting the production route by arranging the generated standard routes, and further determining the interference between the parts of the condition judgment table An apparatus for automatically setting a mold manufacturing process, wherein the order of component mounting and removal is set using a mold. At least a work content creation table in which work content information necessary for creating work content is tabulated,
The mold according to claim 6, wherein at least work contents in each standard work order are created based on the work order set by the condition determination table, using the work content information in the work content creation table. Automatic setting device for production process.   8. The automatic production apparatus for a mold manufacturing process according to claim 7, wherein the work content creation table includes an external table describing the work content.

Images