JPH10230436A - Manufacturing design support system, manufacturing design method, program recording medium for data output, and data storage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately manufacturing design easily and in a short time by relieving a designer's burden in manufacturing design work including process design. SOLUTION: It is discriminated whether or not process data stored beforehand in an external storage device can be carried over according to the feature quantity of shapes (SD5). In the case of possible carryover, the machining process data are taken out, and available tools are set for each machining process (SD6, SD7). By summarizing machining processes for each work process (SD10), and putting available tools together (SD11), the process data including those an machine change and tool change are prepared automatically. By evaluating processing properties by means of simulation or the like and changing a part of data, it is possible to conduct optimization.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing apparatus and a manufacturing design for designing a processing procedure used for manufacturing a target product by cutting a material.

[0002]

2. Description of the Related Art In general, a design of a processing apparatus and a processing procedure used when a product such as a press die is manufactured by a cutting process is performed after creating (shape design) the product shape data using a CAD system. The CAD / CAM system is used to design the machining process, tools to be used, machining conditions, etc., for each of a plurality of machining sites of the product (machining design), and furthermore, the machines and work processes (machining) to be used to efficiently process the entire product. Are designed (process design) straddling a plurality of processing parts. And in the processing design,
Using a standard file created by defining the characteristic amount of the shape data for each machining part, select a standard file that approximates the characteristic amount of the shape data of the product to be newly manufactured, and create the manufacturing information such as the machining process and tools to be used There is also proposed a method of allocating the data. In the present specification, the processing design and the process design are collectively referred to as a production design.

[0003]

However, in the machining design in the conventional CAD / CAM system, the workability such as whether or not machining is possible while the designer understands the shape based on the shape data created by the shape design. Since a plurality of machining parts (machining shapes) are defined after examination and production information such as machining steps is given to each machining part, there is a problem that a large number of man-hours are required and time is required. Even for similar products, the same man-hours are required each time. In addition, if the standard file is used, the number of steps for providing the production information is reduced, but the production information may be outdated and become obsolete due to advances in processing machines. It is conceivable to add the latest production information one by one, but it is troublesome and time-consuming, and the number of pieces of information increases, so that it is difficult to select optimal production information.

[0004] In the field of process design for designing the processing procedure of the whole product, a system has not been systematized conventionally, and the procedure work on paper such as a processing diagram and a production instruction diagram has been mainly performed, and a large number of man-hours have been required each time.

On the other hand, the shape data (CAD data) created by the shape design is converted into a standard format that can be used in different systems such as IGES (a standard of graphic data defined by the American National Standards Institute), and the data is converted into a C format.
Although the machining design is performed by importing it into the AM system, the CAD data that can be imported is only geometric information such as surfaces and lines, so in order to recognize it as a shape, the position of each component such as surfaces and lines must be defined again. Need to do so and duplicate work occurs.

[0006] Also, in the shape design stage, if the design is not advanced by examining the workability such as the possibility of machining and the work process, etc.
At the production design stage, it may turn out that it is impossible to produce, so the designer of the shape design will consider the workability and work process, etc., and proceed with the design. Since there is no system for supplying the production design in association with the shape data, the production information examined in the shape design cannot be used in the production design. The information can be transmitted on paper or the like, but it requires a cumbersome operation such as transferring the information.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce a burden on a designer in a production design including a process design, and to easily and quickly obtain an appropriate production design. In addition, the manufacturing information and the shape data are associated with each other so that they can be transferred between different systems.

[0008]

In order to achieve the above object, a first aspect of the present invention is to provide a manufacturing design relating to a processing apparatus and a processing procedure used for manufacturing a target product by cutting a material. A production design support system performed by using a computer, wherein (a) associating feature data related to a predetermined feature of a product shape with fabrication data related to a processing apparatus and a processing procedure for manufacturing the product. Data storage means for storing a plurality of products, and (b) comparing the feature quantity of the shape of the new product to be newly manufactured with the feature quantity data stored in the data storage means, Retrieves the production data for a product that is similar to the feature of the new product, and uses the production data to produce the new product And having a diverting designing means for performing manufacturing design for engineering apparatus and processing steps automatically.

According to a second aspect of the present invention, there is provided the production design support system according to the first aspect, wherein: (a) simulation means for displaying a simulation of producing a product in accordance with the processing apparatus and the processing procedure designed by the diversion design means; (b) The apparatus further comprises a processing device to be used designed by the diversion design device and a changing device for changing a processing procedure according to a designer's intention.

A third invention is characterized in that in the production design support system according to the second invention, there is provided an evaluation means for automatically evaluating a processing time and a processing accuracy based on a simulation performed by the simulation means.

According to a fourth aspect of the present invention, there is provided the manufacturing / design support system according to any one of the first to third aspects, wherein (a) the shape data of the new product created by the CAD function is used in advance by a different computer system. In a predetermined standard format, a shape data output means for outputting with an identification symbol that can be specified from the outside for each component, and (b) production data on a processing apparatus and a processing procedure designed by the diversion design means. Production data output means for outputting as text data in association with each component of the shape data by the identification symbol, and (c) position data for specifying the positional relationship of each component of the shape data using the identification symbol And a position data output means for outputting the text data as text data.

According to a fifth aspect of the present invention, there is provided the production design support system according to the fourth aspect of the present invention, wherein (a) outputting the feature data relating to the feature of the shape of the new product as text data in association with the production data relating to the new product. (B) the data storage means stores each data output from the shape data output means, the production data output means, the position data output means, and the feature data output means. It is an external storage device which can be read out as needed.

A sixth aspect of the invention is characterized in that a production design relating to a processing apparatus and a processing procedure used when producing a new product is performed using the production design support system of the second invention.

According to a seventh aspect of the present invention, there is provided a computer for outputting, from a computer, manufacturing data relating to a processing apparatus and a processing procedure used for manufacturing a target product by performing a cutting process on a material in association with shape data of the product. A data output program recording medium, comprising:
Shape data output means for outputting the shape data of the product created by the function, in a predetermined standard format usable by different computer systems, with an identification symbol that can be specified from the outside for each component, b) production data output means for associating the production data with each component of the shape data by the identification symbol and outputting it as text data, (c) using the identification symbol to indicate a positional relationship between the components of the shape data. A program for executing each function of the position data output means for outputting the specified position data as text data is recorded.

According to an eighth aspect of the present invention, there is provided a data storage device for storing manufacturing data used for manufacturing a target product by performing a cutting process on a material and manufacturing data relating to a processing procedure in association with shape data of the product. And
(a) The shape data of the product created by the CAD function is
In a predetermined standard format that can be used in different computer systems, a shape data storage unit that stores with an identification symbol that can be specified from the outside for each component,
(b) a production data storage unit that stores the production data as text data in association with each component of the shape data by the identification symbol, and (c) feature amount data related to a predetermined feature amount for the shape of the product. (D) a position for storing position data for specifying the positional relationship of each component of the shape data using the identification symbol as text data; And a data storage unit.

[0016]

According to the production design support system of the first invention, the feature data of the shape of a new product to be newly manufactured is compared with the feature data stored in the data storage means. Since the production data related to the product that is similar to the feature value of the new product is extracted, and the production data is diverted, the production design relating to the processing apparatus and processing procedure used when producing the new product is automatically performed, The burden on the designer in the production design is reduced, and appropriate production design can be performed easily and in a short time. Note that the approximation that the characteristic amount data is similar to the characteristic amount of the new product includes the case where the characteristics coincide.

According to the second aspect of the present invention, a simulation for producing a product according to the processing apparatus and the processing procedure designed by the diversion design means is displayed as an image, and the processing apparatus and the processing procedure can be changed by the designer's intention. In addition, a more appropriate manufacturing design can be performed for a new product. The sixth invention in which the production design is performed using this production design support system can also obtain substantially the same effect.

According to the third aspect of the present invention, the processing time and the processing accuracy are automatically evaluated based on the simulation performed by the simulation means. A more appropriate manufacturing design can be easily performed by making a change according to the intention of the user.

In the fourth invention, the shape data is output in a predetermined standard format, and each component of the shape data can be identified by an identification symbol, and position data for specifying a positional relationship between them is provided. Since the production data associated with the shape data by the identification symbol is output as text data, the shape data and the production data can be associated and transferred between different computer systems. This eliminates duplication of work such as re-input of shape data, and makes it possible to effectively use the production data examined in the previous process in the subsequent process, reducing the burden on the designer as a whole and reducing the work time. Is shortened. Also,
In other fields such as production management and parts procurement, such data can be referred to and used, so that work efficiency can be improved and input errors can be reduced. In the seventh invention, substantially the same effects as those of the fourth invention are obtained.

In the fifth invention, feature data relating to the feature of the shape of the new product is output as text data in association with the production data, and the shape data output means, the production data output means, the position data output means,
Since each data output from the feature data output unit is stored in the data storage unit (external storage device), the latest production data can be used when newly designing and designing a product thereafter. The production data stored in the data storage means is prevented from becoming obsolete. In the eighth invention, substantially the same effects as in the fifth invention can be obtained.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is suitably applied to the production design of a die for press working as a target product, but can also be applied to the production design of other products. The production design is based on the machining process (roughing, semi-finishing,
Finishing, etc.), tools to be used, machining conditions (feed rate, depth of cut, coolant, etc.), etc., work process of the whole product (four-side machining, inclined hole machining, finishing and other machine walks) and setup Is a concept that includes both process design in which the design is performed across multiple machining sites, and is suitably applied to a system that performs both designs, but a system that performs only part of the process design, such as only process design. Also applicable to The processing device is a concept including the above-mentioned tools and machines, and the processing procedure is a concept including a processing step and an operation step. Further, for example, a processing method, a remaining amount, a target operation step, and the like are determined for each of the processing steps.

The manufacturing design support system of the present invention can be constituted by a single microcomputer in hardware except for the fifth invention, but a plurality of terminals (computers), external storage devices and the like can be connected online. It is desirable to have a tied configuration.

The characteristic amount relating to the shape of the product is a characteristic necessary for manufacturing design and actual cutting, for example, a name of a processing portion (a pressure receiving plate mounting seat, a guide pin hole, a screw hole, a door handle, etc.), an arrangement surface. (Arrangement direction), wall height, shape and dimensions of corner R, and the like. The processing portion is defined as a group that is significant in producing a product by performing a cutting process on a raw material, for example, such that the finishing surface accuracy is the same and can be simultaneously processed by a common cutting tool. As for the feature amount of a new product, it is desirable to provide a feature amount extracting means for automatically extracting from the shape data (CAD data) according to, for example, the type of the product or the name of the processing part. You may make it set.

When extracting the production data by comparing the characteristic amount of the new product with the characteristic amount data, for example, a plurality of production data in which the value of each item of the characteristic amount is within a predetermined allowable range is extracted. Although it is possible to finally narrow down to one from the simulation results of
It is also possible to assign a priority order by weighting or the like the feature quantity items, and take out one piece of production data from the beginning.
Even when a plurality of pieces of production data are taken out, it is possible to assign priorities by weighting the items of the feature amount.

The diversion design means includes, for example, a work process data extracting means for extracting data on the work process according to the type of the new product, and data relating to the process for each work site according to the characteristic amount of each work site of the new product. Machining process data extracting means to be taken out, tool setting means for determining a tool to be used by using a feature value as a parameter for each machining process of the machining process data, and a plurality of work process data extracted by the work process data extracting means for each work process. And a tool aggregating means for aggregating the machining processes of the machining parts and a tool aggregating means for aggregating the tools used in the machining process aggregated for each work process and determining a machining order for each machining machine. .

The changing means according to the second invention may merely allow the designer to change the tool to be used or the machine to be used by the input operation of the designer.
Displays selection items such as "minimize the walking of the machine", "minimize the number of tools used", "reduce the load on the specified processing machine", etc., and automatically optimize according to the selection operation by the designer It is also possible to perform a conversion process. This may be performed, for example, by performing a predetermined similar operation using a common machine or tool.

Also in the third invention, it is desirable to provide a changing means for automatically changing and optimizing a processing method, a tool diameter and the like according to the evaluation result of the processing time and the processing accuracy.

As a standard format in the fourth and seventh inventions, IGES is generally used. Since an external name can be assigned to each IGES element of the shape data, an external name is assigned as an identification symbol. What should I do? Other formats, such as STEP defined by the International Organization for Standardization (ISO), can also be used as the standard format.

As the position data for specifying each component of the shape data, for example, a representative vector and a representative coordinate value of each surface are preferably used.

Each of the data output means of the fourth and seventh inventions is configured to output data to an external storage device, for example, as in the fifth invention, but may also output data directly to another computer. It is possible.

The recording medium of the seventh invention is constituted by, for example, a ROM or a RAM of a computer.
A portable storage means such as a floppy disk may be used.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram illustrating a basic configuration of a production design support system 10 according to an embodiment of the present invention. The CAD / CAM device 12 and an external storage device 14 are connected on-line. Many computers are connected to the storage device 14 in addition to the CAD / CAM device 12. The CAD / CAM device 12 is a microcomputer, a central processing unit 16 connected by a data bus line, and a main storage device 18 such as a RAM or a ROM.
The central processing unit 16 includes the main storage device 1
Various arithmetic processes are performed in accordance with a program stored in advance in the CAD 8, and a CAD function and a CAM function can be executed. The CAD / CAM device 12 is a network terminal and has only a CAD function according to the work content, and a CAM / CAM device.
Those having only the function or both functions are used. The central processing unit 16 also includes a display device 20 such as a cathode ray tube or a liquid crystal panel for displaying simulation results and work instructions for subsequent processes, and the like, and a keyboard 22, a dial 24,
The tablet 26 and the like are connected. The network controller 28 is connected to a workstation, a machine tool, or the like, and controls data output such as file transfer.

The production design support system 10 of this embodiment is
As shown in FIG. 2, the external storage device 14 includes a product data storage unit 30, a process data storage unit 32, and a resource data storage unit. 34,
Product data, process data, and resource data relating to a large number of press dies manufactured in the past are stored in association with each other. The external storage device 14 corresponds to the data storage means of claim 1, the external storage device of claim 5, and the data storage device of claim 8, and can write and read data as appropriate. .

The product data storage section 30 stores “vehicle type”, “model name”, “part name”,
Data on “shape data” representing the shape of the press die, “feature amount” for each of a plurality of processing portions of the press die, and the like are stored. The “shape data” includes data of each processing part in addition to data of the entire press die. A plurality of processing parts, such as the same finishing surface accuracy, can be processed simultaneously by a common cutting tool, such as a `` pressure receiving plate mounting seat '' as a meaningful group in producing a press die by performing cutting processing on the material, It is determined in advance for each type of press die, such as “guide pin hole”, “screw hole”, and “door handle”.

The above-mentioned "shape data" is obtained by converting data of a surface or a line created by a CAD function into an IGES
The data is stored after being converted into data, so that the system can be used on various computers. Such “shape data” is geometric information of a plane or a line, and its mutual positional relationship is unknown. In the present embodiment, however, as shown in FIG. As shown in FIG. 4, “position data” for specifying the position of each component corresponding to the external name by the surface representative vector and the surface representative coordinate value is text data (hereinafter, text data). This is referred to as data), which makes it possible to automatically reproduce a united processing part shape. Product data storage unit 30
Of these, the portion storing the IGES data in FIG. 3 corresponds to the shape data storage section in claim 8, and the portion storing the position data in FIG. 4 corresponds to the position data storage section in claim 8. . FIG. 5 (a) is a reproduction of “shape data” of a processed part of “concave seat” based on “position data”. The "shape data" is accompanied by "shape and dimension data" as text data as shown in FIG.

The "feature amount" is a characteristic necessary for manufacturing design and actual cutting, such as a name of a processing portion (pressure receiving plate mounting seat, guide pin hole, screw hole, door handle, etc.),
The arrangement plane (arrangement direction), the wall height, the shape and dimensions of the corner R, and the like are given. The shape and dimension are the same as those in the above "Shape and dimension data".
It is a dimension necessary for production design, such as determining the maximum value of the tool diameter and the minimum value of the tool length. FIG. 6 is a diagram for explaining an example of a predetermined “feature amount” for the “concave seat” shown in FIG. 5, which is obtained from the “shape and dimension data” and the like. ",
“Β”, “W”, “H”, and “R” correspond to the respective symbols shown in FIG. FIG. 7B is an example of feature amount data relating to a predetermined “feature amount” for the “pressure receiving plate mounting seat” shown in FIG.
Is an example of feature amount data relating to a "feature amount" predetermined for the "slide plate mounting seat" shown in (a). 7 and 8, "R" is a corner R, "D" is a diameter dimension, "L1" and "L2" are width dimensions, and "H1" is a wall height. The data of the “feature amount” is stored as text data.
The portion storing the feature data such as (b) in FIG. 7 and (b) in FIG. 8 corresponds to the feature data storage section in claim 8.

Returning to FIG. 2, the process data storage unit 32 and the resource data storage unit 34 are parts that store manufacturing data relating to a processing apparatus and a processing procedure for manufacturing a press die. , And all are stored as text data. The process data storage unit 32 relates to a processing procedure and includes data such as “work process”, “setup”, “work sequence”, and “work process”. The “work process” relates to, for example, as shown in FIG. 9, the crosswalk of a machine group such as four-side machining, inclined hole machining, and finishing.
The data is linked to data such as “model name” and “part name” and stored. "Setup" relates to the type of setup method to be used for processing.
Etc. and are linked to and stored. The “work sequence” relates to where to start machining,
The data is linked to data such as “work process” and “setup” and stored. The “processing step” relates to a processing procedure (roughing, semi-finishing, finishing, etc.) for each processing part, a processing method, a processing condition, a remaining amount, and the like in each step. Is linked to and stored. FIG. 10A shows an example of the machining process data relating to the “pressure receiving plate mounting seat” of FIG.
(b) is an example of processing step data relating to the “slide plate mounting seat” in FIG. It is also possible to store CL data and the like linked to each processing step of this processing step data. Note that the “target work process” in FIG.
This is data representing in which work process of the work process data was performed.

The resource data storage section 34 relates to a processing device and stores physical information such as "tool" and "machine". The "tool" data includes data on the tool itself, such as type, diameter, tool length, and material, as well as data on arbors and chucks. And data such as line names. The data of “tool” is stored by linking to each processing step of the processing step data, and the data of “machine” is stored by linking to each operation step of the operation step data.

Next, the production design support system 1 of this embodiment
The operation at the time of designing and manufacturing a new product by using “0” will be described. The flowchart of FIG. 11 is a part for creating the shape data of a new press die as a new product.
In addition to having both functions of AM, the feature extraction means 38, the diversion design means 40, and the interference check means 4 shown in FIG.
2, a CAD / CAM device 12 having the functions of the optimization unit 44 and the data output unit 46 is used.
The feature extraction unit 38 executes step SA4, and the diversion design unit 40 executes steps SA1, SA6, SA
7, SA13 and SA14, the interference check means 42 executes step SA9, the optimization means 44 executes step SA11, and the data output means 46 executes step SA15. . Step SA executed by diversion design means 40
1, among SA6, SA7, SA13, and SA14, step SA1 functions as a work process data extracting unit,
Step SA6 functions as a machining process data extracting unit, step SA7 functions as a tool setting unit, step SA13 functions as a machining process integrating unit, and step SA14 functions as a tool integrating unit. The diversion design means 40 corresponds to the diversion design means according to claim 1.

At step SA1 in FIG. 11, the "model" or "model name" of the press die to be manufactured is input by a designer or the like, so that the process data storage unit 3
2 are automatically extracted from the work process data (see FIG. 9) stored in the storage unit 2 in which the "vehicle type", "model name", and the like match. In step SA2, a plurality of machining parts are automatically determined according to “vehicle type”, “model name”, or the like, or determined by a shape designer or the like.
In 3, the shape data is created for each processing portion using the CAD function. This shape data is, for example, the parts (pressure receiving plate, slide plate, etc.) placed on the press die
It is created automatically on the basis of the shape of a press product to be manufactured by a press die or the like, or by an input operation of a shape designer. “Shape data” of past press dies stored in the product data storage unit 30
It is also possible to create using.

In step SA4, a feature amount similar to the feature amount data shown in FIGS. 7 (b) and 8 (b) is automatically generated on the basis of the processed part name and the shape data created in step SA3. To extract. As shown in FIG. 6, the item of “feature amount” and the extraction method (conversion method) are set in advance for each processing portion, and
The shape data created in A2 also includes shape and dimension data.

At step SA5, the feature quantity extracted at step SA4 is compared with the feature quantity data stored in the product data storage section 30 and stored in the process data storage section 32. It is determined whether process data, specifically, processing step data can be used. The process data can be diverted not only when the values of the respective items of the feature amount completely match, but also when some of them are different within a predetermined allowable range, it is determined that the process data can be diverted. If it can be diverted, step S
At A6, the machining process data is taken out, and at Step SA7
In step SA8, the shape designer manually inputs the process data relating to the machining process and the tool to be used for designing if the tool cannot be used for each machining process.

In step SA6, when there are a plurality of processing process data that can be diverted, all of the plurality of processing process data may be taken out. In the present embodiment, each item of the characteristic amount is weighted. Priority is assigned, and one piece of data having the highest priority is taken out. In Step SA7, Step SA
For each processing step of the processing step data extracted in step 6, the tool to be used, the protrusion length, and the like are automatically set in accordance with conditional expressions such as the following equations (1) to (3) using feature amounts as parameters. The feature quantities “L2”, “R”, and “H” in equations (1) to (3)
"1" corresponds to the feature amount shown in FIGS. 7 and 8, and "remaining amount" is preset in the machining process data as shown in FIG. FIGS. 13A and 13B show a state in which a tool to be used and the like are set for each processing step of the processing step data shown in FIG. Tool diameter <L2- (remaining amount) × 2 (1) Tool diameter ≦ R × 2 (2) Projection length> H1 (3)

When the working process is designed in step SA6 and SA7 or step SA8, step S
In A9, whether or not processing is possible is evaluated. This means, for example, that the outermost shape of the tool (including arbor and chuck etc.) when processing the processing part is determined, and whether or not it interferes with the product, that is, the press die at the time of cutting, for all the tools used Check automatically. In the case where machining is not possible, whether or not it can be dealt with without changing the shape of the machined part by changing the tool length is automatically or determined by the shape designer. By executing step SA11, the process data relating to the tool to be used is processed so that the processing can be performed automatically by changing the tool length or the like, or by showing the designer several options to enable the processing. The optimization is performed, and the step SA9 is executed again as necessary. Subsequent to step SA11, step SA12 may be immediately executed. If the shape needs to be changed, the shape of the processed part is changed automatically so as to enable processing in step SA10, or by an input operation of a shape designer, and the steps from step SA4 are executed again.
This shape change is performed within a predetermined allowable range where rigidity, strength, dimensions, and the like are satisfied as a press die.

If the determination in step SA9 is OK, that is, if machining can be performed without interference, step SA
In 12, it is automatically determined by the shape designer whether or not the design of the process data such as the machining process and the tool to be used has been completed for all the machining portions set in the step SA 2, and it is determined for each machining portion. Step SA3 and subsequent steps are repeatedly executed. When the design of the process data of all the processing parts is completed and the determination in step SA12 is YES, step SA13 is executed, and the processing steps of a plurality of processing parts are performed for each of the processing steps of the processing step data extracted in step SA1. Integrate and summarize processing steps that can be processed using a common processing machine. As shown in FIG. 10, the processing step data includes data relating to the “target operation step”, that is, information indicating in which operation step (processing machine) the processing was performed, and is automatically aggregated according to this information. . FIG.
FIG. 13 shows a state in which the processing steps of the two processing step data shown in FIG. 13 are combined into the work step data of FIG. 9 and a portion surrounded by a thick dashed line indicates a “pressure receiving plate mounting seat” shown in FIG. In the processing steps related to the above, the part surrounded by a thick broken line is the processing step related to the “slide plate mounting seat” shown in FIG.

In the next step SA14, the tools used in the machining process that have been consolidated for each work process in the above-mentioned step SA13 are automatically consolidated within a range that strictly observes the order of the machining processes for each machining portion, and The processing order is determined over a plurality of processing parts. FIG. 15 shows a case in which the tools used in the work process data shown in FIG. 13 are consolidated. In the four-side machining of the work process 1, first, (1) a machining process 1 (rough) of the pressure receiving plate mounting seat using a φ30 helical cutter. Take)
(2) Processing step 1 (roughing) of the slide plate mounting seat using a φ50 helical cutter, and (3) Processing step 2 of the pressure receiving plate mounting seat using a φ20 helical cutter.
(Medium finish) and machining process 2 of the slide plate mounting seat (medium finish), and finally (4) machining process 3 of the pressure receiving plate mounting seat (prepared hole) using a φ10.8 drill, and mounting of the slide plate This means that the seat processing step 4 (prepared hole) is performed. In the finishing of the working process 4, first, (1) a working process 4 of the pressure receiving plate mounting seat (finishing), a working process 3 of the slide plate mounting seat (medium finishing), and a working process 5 (finishing) using a φ10 end mill. After that, (2) the processing step 5 (screw) of the pressure receiving plate mounting seat and the processing step 6 (screw) of the slide plate mounting seat are performed using a φ12 tap.

In the last step SA15, data output processing is executed in accordance with a storage instruction operation by the shape designer, and the shape data and process data created in each of the above steps are stored in the external storage device 14 in association with each other. . The data output means 46 for executing step SA15 includes a shape data output means 48, a process data output means 50, a position data output means 52, and a feature data output means 54, as shown in FIG. A program for automatically executing data output processing in accordance with the flowchart of FIG. 16, wherein a program for executing this series of processing corresponds to the data output program according to claim 7, and said main storage storing the program Device 18
Corresponds to a recording medium for a data output program. In addition, the shape data output means 48 performs steps SB1, SB
2 and SB5, the process data output means 50 executes steps SB3 and SB6, the position data output means 52 executes steps SB4 and SB7, and the feature data output means 54 executes steps SB3 and SB7. This executes SB8. The shape data output means 48 corresponds to the shape data output means according to claims 4 and 7, the process data output means 50 corresponds to the production data output means according to claims 4 and 7, and the position data output means 52 corresponds to The feature data output means 54 corresponds to the position data output means described in claims 4 and 7, and the feature data output means 54 corresponds to the feature data output means described in claim 5.

In step SB1 of FIG. 16, the element ID assigned to each component of the surface or line of the shape data is extracted, and in step SB2, the element ID is assigned as the external name of the file for each component. I do. Element ID
Is unique for each type of CAD system, and is effective in that system. However, since it is deleted upon conversion to IGES, an element ID is given as an external name before conversion. The external name corresponds to an identification symbol that can specify a component from outside.

In step SB3, a correspondence relationship between the external name and a surface related to the shape data such as a processing target surface of the process data created according to the flowchart of FIG. 11 is given. Associate with components. The process data shown in FIG. 17 is an example of the “surface 1 = 10 (external name)”, “surface 2 = 20”.
By writing data such as "(external name)",..., The surface 1 and the like written in the target area of the production information are associated with the components of the shape data.
“Surface 1 = 10 (external name)”, “Surface 2 = 20 (external name)”,... Correspond to the IGES data in FIG. The data stored in the process data storage unit 32 also includes data associated with the components of the shape data.

In step SB4, a surface representative vector and a surface representative coordinate value are extracted for each component of the surface of the shape data, and the position data as shown in FIG. 4 is created as text data. This makes it possible to specify the mutual relationship between the constituent elements of the shape data, which is merely geometric information, and reproduce a single integrated processing part shape.

In step SB5, the shape data created by the CAD function is converted into IGES data as shown in FIG. In step SB6, the process data as shown in FIG. 17 associated with each component of the shape data by the external name is output to the external storage device 14 as text data. In step SB7, the position data as shown in FIG. The data is output to the external storage device 14 as text data. Further, in step SB8, the feature amount data extracted in step SA4 in FIG. 11 is output as text data in association with the shape data and the process data. Various other data to be stored in the external storage device 14, such as the "vehicle type" and "model name" of the newly created press die, are also output in this data output process, Each is stored in the storage unit.

On the other hand, since the process data created as described above is not complete, it can be optimized by the production designer (processing / process designer) using the production design support system 10 of the present embodiment. It has become. FIG. 18 is a flowchart showing each step for optimizing process data. The flowchart has at least a CAM function, and has a simulation means 60, a process optimization means 62, a workability evaluation means 64, The CAD / CAM device 12 having the functions of the accuracy optimizing unit 66 and the data output unit 68 is used. The simulation means 60 executes step SC2.
The process optimization means 62 executes step SC5, the workability evaluation means 64 executes step SC6, the time / precision optimization means 66 executes step SC7, and the data output means 68 executes step SC5. SC8
Is to execute. The simulation means 60 corresponds to the simulation means according to claim 2, the process optimization means 62 corresponds to the change means according to claim 2, and the workability evaluation means 64 corresponds to the evaluation means according to claim 3. I do. The data output means 68 is substantially the same as the data output means 46.

In step SC1 of FIG. 18, shape data, process data, etc. relating to a newly created press die are read from the external storage device 14 based on data such as "vehicle type" and "model name". Since the shape data is stored as IGES data, the CAD data subjected to the processing of FIG.
Even if the optimization process is performed using a CAD / CAM device 12 having a system different from that of the / CAM device 12, the IGE
The shape of the press die can be reproduced by the S data and the position data.

In step SC2, a simulation for manufacturing a mold while exchanging working machines and tools is automatically displayed on the display device 20 in accordance with the work process data created as shown in FIG. At this stage, since the tool movement path (CL) in each machining process has not been created, the machine walking and tool change when performing the die manufacturing are performed together with the shape change from the material to the final shape. indicate.

In step SC3, it is determined by the production designer who has seen the simulation whether or not to change the process data depending on whether there is no waste in the flow of the production, whether there is no problem in the accuracy, or the like. You. During the simulation, for example, the number of times the machine walks and the number of setups are counted, and the propriety can be automatically determined based on a difference from a predetermined reference value. May be displayed. And
If an input operation to change is performed, step S
In C4, for example, options such as “minimize the machine walking”, “minimize the number of setups”, “minimize the number of tools used”, and “minimize the load on a predetermined processing machine” are selected. An image is displayed, and the production designer is caused to select an item to be optimized. In step SC5, a change procedure predetermined for each selection item, such as performing a predetermined similar operation on a common machine or using a machining tool of a previous process having a small diameter as it is, for example. The contents of the work process, processing process, setup, etc. are changed in accordance with. The process data may be changed according to a manual input operation of a production designer,
In that case, it is desirable to display some options that can be changed according to the selection items.

In step SC6, the processing time and the processing accuracy are automatically evaluated based on the work process simulation in step SC2, and the result is displayed on the display device 20. The evaluation of the processing time not only evaluates the actual cutting time, but also the non-cutting time (air cut), the cutting tool preparation time,
Also evaluate the total time including the setup time for setting up the work. The evaluation of the machining accuracy is performed by combining two methods, for example, a method of calculating the bending of the tool from the tool diameter D, the tool length L, the material of the material, and the like, and a method of calculating the cusp height from the relationship between the tool and the pick. . The step S
When the process data is changed in C5, the evaluation results before and after the change are compared and displayed.

Then, the production designer who sees the evaluation result is OK.
Is determined, and if the input operation is performed, data is output in step SC8 in the same manner as in step SA15 and stored in the external storage device 14. If the production designer makes an NG determination and inputs that fact, in step SC7, the processing method, tool diameter, processing conditions, and the like are set according to whether the processing time is reduced or the processing accuracy is improved. The process data is optimized by making the change, and thereafter, steps SC2 and subsequent steps are repeatedly executed.
Optimization in this case, for example, when shortening the processing time to perform a predetermined similar work on a common machine, or to use the processing tool of the previous process having a small diameter dimension as it is, In order to improve machining accuracy, it can be performed automatically according to a predetermined change procedure such as shortening the protrusion length of the tool or changing to a large diameter tool, but manual input operation by the production designer In this case, it is desirable to display some options that can be changed.

According to the production design support system 10 of the present embodiment, when designing the shape of a new press die, the feature amount of the shape and the product data storage unit 30 of the external storage device 14 are stored. In comparison with the feature amount data of the previously manufactured press die, the processing process data related to the press die having the similar feature amount is extracted (S
A6) Since a tool used in each machining step is automatically set (SA7) and the possibility of machining is evaluated (SA9), a request for shape change from a later step such as manufacturing design ( Return) is reduced. In particular, since the past data is diverted, the interference check can be performed with high accuracy, and the data is automatically extracted from the external storage device 14, so that the operation can be performed easily and quickly. be able to.

In the above-mentioned shape design, not only the machining process data but also the work process data is taken out, and the production design of the whole mold is automatically performed (SA1, SA13, SA14). The load can be greatly reduced, and an appropriate production design can be performed easily and in a short time.

The shape data created by the shape design is stored in the external storage device 14 as IGES data, and each component is identified by an external name, and positional data for specifying the positional relationship between them and external data. Since the process data associated with the shape data by name is stored in the external storage device 14 as text data, the production designer can use the CAD / CAM device 12 of a system different from the shape design to perform work. Even in the case of performing, the shape data is reproduced well, and redundant work such as re-input is eliminated. Further, since the production design (optimization of the process data) can be performed using the process data created in the shape design stage as it is, the burden on the designer is reduced as a whole, and the working time is shortened.

The process data optimized by the manufacturing design is also stored in the external storage device 14 together with the shape data. Data and shape data can be taken out for easy work. In other fields such as production management and parts procurement, such data can be referred to and used, so that work efficiency can be improved and input errors can be reduced.

The feature data relating to the feature of a new press die that has been manufactured and designed (optimization of process data) is also stored in the external storage device 14 as text data in association with the process data. Thereafter, when a new press die is produced and designed, the latest process data can be used, and the data stored in the external storage device 14 is prevented from becoming obsolete.

On the other hand, in the production design (optimization of process data), a simulation is performed in accordance with the process data created by the diversion design (SC2), and the process data can be changed by the intention of the production designer (SC4, S4).
C5) Therefore, a more appropriate manufacturing design can be performed.
In addition, since the processing time and the processing accuracy are automatically evaluated based on the simulation (SC6), the process data can be easily optimized with reference to the evaluation results.

In the above example, the case where the shape design and the production design are performed separately has been described. However, as shown in FIG. 20, these designs can be performed continuously in a single process. In this case, for example, both the CAD and CAM functions are provided, and the feature amount extracting means 7 shown in FIG.
A CAD / CAM device 12 having the functions of a diversion design unit 72, a workability evaluation unit 74, a process data optimization unit 76, and a data output unit 78 is used. The feature extraction means 70 executes step SD4, and the diversion design means 72 executes steps SD1, SD6, S
D7, SD10, and SD11 are executed, the workability evaluation means 74 executes step SD12, the process data optimizing means 76 executes step SD15, and the data output means 78 executes step SD16. Things. The diversion design means 72 corresponds to the diversion design means according to claim 1, and the workability evaluation means 74 corresponds to the simulation means and the evaluation means according to claim 2, and the process data optimization means. Reference numeral 76 corresponds to a change unit according to the second aspect.

In FIG. 20, steps SD1 to SD8
Are the same as steps SA1 to SA8, except that step SD
9 is the same as step SA12, except for step SD1.
0 and 11 are the same as steps SA13 and SA14,
Step SD13 is the same as step SA10, and step SD14 is the same as step SC4.
Step 6 is the same as step SC8. Step SD12 performs the operations of steps SA9, SC2, SC3, and SC6, and step SD15 performs the operations of steps SA11, SC5, and SC7.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention can be embodied in other forms.

For example, each step SA for performing the above optimization
In 11, SC5, SC7, and SD15, the process data may be changed only by the manual input operation of the designer.

Further, steps SA1 and SA in FIG.
13 and SA14 may be performed between steps SC1 and SC2 in FIG.

Although not specifically exemplified, the present invention can be embodied with various modifications and improvements based on the knowledge of those skilled in the art.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a schematic configuration of a production design support system to which the present invention is applied.

FIG. 2 is a diagram illustrating the contents stored in an external storage device of FIG. 1;

FIG. 3 is a diagram illustrating shape data stored in a product data storage unit in FIG. 2;

FIG. 4 is a diagram illustrating position data stored along with the shape data of FIG. 3;

FIG. 5 is a diagram illustrating a specific example of shape data.

FIG. 6 is a diagram illustrating a feature amount related to the shape data of FIG. 5;

FIG. 7 is a diagram illustrating an example of shape data and feature amount data thereof stored in a product data storage unit of FIG. 2 for each processing part.

FIG. 8 is a diagram illustrating another example of shape data and feature amount data stored in the product data storage unit of FIG. 2 for each processing portion.

9 is a diagram illustrating an example of work process data stored in a process data storage unit in FIG.

10A and 10B are diagrams illustrating an example of machining process data stored in the process data storage unit in FIG. 2; FIG. 10A is related to the machined portion in FIG. 7; Things.

11 is a flowchart illustrating an operation when performing a shape design using the production design support system of FIG. 1;

FIG. 12 shows a CAD used when performing the shape design of FIG. 11;
FIG. 3 is a block diagram illustrating functions of the / CAM device.

FIG. 13 is a view for explaining a state in which a tool to be used is set for each machining step in step SA7 in FIG. 11, wherein (a) and (b) correspond to (a) and (b) in FIG. 10, respectively.

FIG. 14 is a diagram illustrating a state in which machining processes are integrated for each work process in step SA13 in FIG. 11;

FIG. 15 is a diagram illustrating a state in which tools are consolidated for each work process in step SA14 of FIG. 11;

FIG. 16 is a flowchart illustrating the specific contents of step SA15 in FIG. 11;

FIG. 17 is a view for explaining process data to which an external name has been given in step SB3 of FIG. 16;

FIG. 18 is a flowchart illustrating an operation when optimizing process data using the production design support system of FIG. 1;

19 is a diagram illustrating a CA used when performing the optimization processing of FIG. 18;
FIG. 2 is a block diagram illustrating functions of the D / CAM device.

20 is a flowchart illustrating an operation in a case where a shape design and a production design are performed in a single process using the production design support system of FIG. 1;

FIG. 21 is a block diagram illustrating functions of a CAD / CAM apparatus used when performing the shape design and the production design of FIG. 20 in a single step.

[Explanation of symbols]

10: Production design support system 12: CAD / CAM device 14: External storage device (data storage means, data storage device) 18: Main storage device (recording medium) 30: Product data storage unit (shape data storage unit, feature data) Storage unit, position data storage unit) 32: process data storage unit (production data storage unit) 34: resource data storage unit (production data storage unit) 40, 72: diversion design means 48: shape data output means 50: process data output Means (production data output means) 52: Position data output means 54: Feature data output means 60: Simulation means 62: Process optimization means (change means) 64: Workability evaluation means (evaluation means) 74: Workability evaluation means (Simulation means, evaluation means) 76: Process data optimization means (change means)

(72) Inventor Nobuhiro Kato 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (72) Inventor Takashi Nakagawa 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation

Claims (8)

[Claims] 1. A production design support system for performing, using a computer, a production design for a processing apparatus and a processing procedure used when producing a target product by performing a cutting process on a material, comprising: Data storage means for storing a plurality of products by associating feature data relating to a predetermined feature with production data relating to a processing apparatus and a processing procedure for producing the product; and a shape of a new product to be newly produced. And the feature amount data stored in the data storage means,
The production data relating to a product whose characteristic amount data is similar to the characteristic amount of the new product is extracted, and a production design relating to a processing apparatus and a processing procedure used in producing the new product using the production data is diverted. A production design support system comprising: a diversion design means for automatically performing the diversion design means. 2. The production design support system according to claim 1, wherein: a simulation means for displaying an image of a simulation for producing a product in accordance with a processing apparatus and a processing procedure designed by the diversion design means; and the diversion design means. And a changing means for changing a processing apparatus to be used and a processing procedure designed according to the intention of the designer. 3. The production design support system according to claim 2, further comprising an evaluation unit for automatically evaluating a processing time and a processing accuracy based on a simulation performed by the simulation unit. Support system. 4. The production design support system according to claim 1, wherein the shape data of the new product created by a CAD function is
A shape data output means for outputting each component with an externally identifiable identification symbol in a predetermined standard format usable by different computer systems; a processing device and a processing designed by the diversion design means Production data output means for associating the production data relating to the procedure with each component of the shape data by the identification symbol and outputting it as text data; and specifying the positional relationship of each component of the shape data using the identification symbol. A position data output means for outputting position data as text data. 5. The production design support system according to claim 4, wherein the feature data relating to the feature of the shape of the new product is:
A feature data output unit that outputs the text data in association with the production data relating to the new product, while the data storage unit includes the shape data output unit, the production data output unit, the position data output unit, and the feature. A production design support system, which is an external storage device capable of storing each data output from the quantity data output means and appropriately reading the data. 6. A production design method, comprising: performing a production design relating to a processing apparatus and a processing procedure used when producing a new product using the production design support system according to claim 2. 7. A data output for outputting, from a computer, production data relating to a processing apparatus and a processing procedure used in producing a target product by performing a cutting process on a material in association with shape data of the product. Storage medium for a computer program, wherein the shape data of the product created by the CAD function is provided with an identification symbol that can be specified from the outside for each component in a predetermined standard format that can be used by different computer systems. Shape data output means for outputting the production data by associating the production data with each component of the shape data by the identification symbol and outputting it as text data; and identifying the positional relationship of each component of the shape data. Position data output means for outputting position data specified using symbols as text data A recording medium for a data output program, wherein a program for executing each of the functions is recorded. 8. A data storage device for storing processing data used in manufacturing a target product by performing a cutting process on a material and manufacturing data relating to a processing procedure in association with shape data of the product. A shape data storage unit that stores the shape data of the product created by the CAD function in a predetermined standard format usable by different computer systems, with an identification code that can be specified from the outside for each component; A production data storage unit that associates the production data with each component of the shape data by the identification symbol and stores the data as text data; A feature amount data storage unit that stores as text data in association with Data storage device and having a position data storage unit for storing positional data for specifying using the identification mark positional relationship of the unit as text data.